Note: Descriptions are shown in the official language in which they were submitted.
~345~
REVOLVING EXAMINATION TABLE APPARATUS
Field of the Invention
.. . . _
The present invention is concerned wi-th examination table
apparatus, and particularly revolving examination table apparatus
operable -to selectively place examination instruments be-tween
two opposed parties.
Review of the Prior Ar-t
A search of the prior art revealed the following patents
that are believed to be o~ interest to our invention:
French No. 1,020,452, issued November 1952
to Societe A.R.L. Mobil-Me-tal et M. Robert Cazalis.
U.S. NQ. 3,647,278, issued March 1972 to Schwind.
French No. 1,104,990, issued June 25, 1955
to Societe Dite: Guilbert, Routit & C.
U.S. No. 2,902,741, issued Septembar 8, 1959
to J. H. Hankin, Jr.
U.S. NO. 2,529,581, issued November 14, 1950
to George W. Wiepert
U.S. No. 3,0Q4,571, issued Oc-tober 17, 1961
-to George Gerbrandt
U.S. No. 3,142,269, issued July 28, 1964
to James W. Keck
The two French patents teach use of a rotating table to
bring instruments into the reach of a doctor but differ con-
siderably in overall appearance and usage of applicant's
invention.
The most pertinent reference is the Sch~ind patent
hich teaches the function of a revolving work surface for an
ophthalmologist. However, Schwind fails to provide electrical
outlets or a 360 degree table top surface as presented in this
application.
~ ' .,
s~
~efinition of Invention
In accordance with the present invention there is provided
a revolving examination table apparatus operable to selectively
place examination instruments between two opposed parties,
such as ~or example an optometrist and a patient, comprisin~
(al a main support base assembly includes a ring shaped basic
~ table top member mounted on support leg members;
: (b) a revolving table top assembly having a main table top
assembly rotatably mounted on said basic table top member;
~c) each of said basic table top member and said main table
top assembly having a central opening to receive the optometrist
therein;
(dl said main table top assembly rotates through an entire
360 degrees and includes a plurallty of instrument table sections
: 15 each adapted to support an examination instrument thereon;
~e~ an electrical control and drive assembly includes 1) a
table drive assembly secured to said basic table top member and
engagable with said main table top assembly to rotate same;
2~ a power assembly having a stationary power contact assembly
2Q secured to sald basic table top member at a home base working
station and a receptacle power contact assembly having a recep-
tacle member mounted at each instrument table section; 3) a
control panel assembly secured to said basic table top member;
and ~ an electrical control assembly having a control switch
assembly mounted at said home base working station on said basic
table top member and a circuit assembly to provide electrical
power to said table drive assembly, said power assembly to ener-
gize separately a respective one o~ the said receptacle members,
said control panel assembly, and said control switch assembly;
and
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::
,~
345~
(f) said control panel assembly includes an override switch
operable when actuated to rotate said revolving table top
assembly and, when said overri.de switch is released, one of said
instrument table sections is automa-tically stopped at said home
base working station.
Also in accordance with the invention there is provided
a revolving examination table apparatus operable to selectively
place examination instruments between two opposed parties,
comprising:
(a) a main support base assembly includes a ring shaped basic
table top member mounted on support leg members;
(b) a revolving table top assembly having a main table top
assembly rotatably mounted on said basic table top member;
(c) each of said basic table top member and said main table
top assembly having a central opening to receive the optometrist
therein;
(d) said main table top assembly includes a plurality of
: instrument table sections each adopted to support an examination
instrument thereon;
(e~ an electrical control and drive assembly includes 1) a
table drive assembly secured to said basic table top member and
engagable with said main table top assembly to rotate same;
2) a power assembly having a stationary power contact assembly
secured to said basic table top member at a home base working
station and a receptacle power contact assembly mounted at each
instrument table section; 31 a control panel assembly secured
to said basic table top member; and ~) an electrical control
assembly having a control switch assembly mounted at said home
base working station on said basic table top member and a circuit
assembly to provide electrical power to said table drive assembly,
said power assembly, said control panel assembly/ and said control
switch assembly~
: - 3 -
~3~
(f) said control panel assembly includes an override switch
operable when actuated to rotate said revolving table top
assembly and, when said override switch is released, one of said
ins:trument table sections is automatically stopped at said home
base working station;
(g~ when one of said instrument table sections is stopped
at said home base working station, said s-tationary power
contact assembly engages said receptacle power contact assembly
to supply electrical power therebetween;
(h~ said receptacle power contact assembly includes a
receptacle member mounted on said main table top assembly to
supply power to an examination instrument as said home base
working station;
(i~ said con-trol switch assembly includes a pair of
: 15 receptacle power switches to selectively supply power to said
xeceptacle member and a motor power switch to selectively supply
power to said tahle drive assembly; and
~j) on rotation of said revolving table top assembly, said
receptacle power contact assembly includes a switch actuator
to engage said control switch. assembly to 1) open said motor
power switch. and stop table rotation; and 2) close said re-
ceptacle power switches to supply said receptacle member at said
home base working station.
Further in accordance with the invention there is provided
~5 a revo].ving examination table apparatus operable to selectively
place examination instruments between two opposed parties,
comprising:
~a~ a main support base assembly includes a ring shaped
basic table top member mounted on support leg members;
3Q (b~ a revolving table top assembly having a main table
top assembly rotatably mounted on said basic table top member;
~3~
(c) each of said basic table top member and said main table
top assembly having a central opening to receive the optometris-t
therein;
(d) said main table top assembly includes a plurality of
instrument table sections each adapted to support an examination
instrument thereon;
(e~ an electrical control and drive assembly includes 1) a
table drive assembly secured to said basic table top member
and engagable with.said main table top assembly to rotate same;
2~ a power assembly having a stationary power contact assembly
secured to said basic table top member at a home base working
station and a receptacle power contact assembly mounted at each
instrument table section; 3~ a control panel assembly secured to
said basic table top member; and 4) an electrical control assem-
bly having a control switch assembly mounted at said home baseworking station on said basic table top member and a circuit
assembly to provide electrical power to said table drive assembly,
said power assembly, said control panel assembly, and said con-
: trol switch. assembly;
2Q (f) said control panel assembly includes an override switchoperable when actuated to rotate said revolving table top
assembly and, when said override switch is released, one o~ said
instrument table sections is automatically stopped at said home
base working station;
(g) when one of said instrument table sections is stopped
at said home base working station, said stationary power contact
assembly engages said receptacle power contact assembly to supply
; electrical power ~erebetween; and
(~h~. said receptacle power contact assembly includes a
receptacle member mounted on.the top surface of each of said
-- 5 --
1~3~S~3
instrument table sections of said main table top assembly to
supply power to an examination instrument at said home base
working station.
Preferred Embodiment of the Invention
The revolving examination table appara-tus includes 1)
a main support base assembly; 2) a revolving table top assembly
mounted on the main support base assembly; and 3) an electrical
control and drive assembly operable to drive and control opera-
tion of the revolving table top assembly and selectively provide
electrical power to electrical receptacles. The main support
base assembly includes a basic table top member supported on
a plurality of support leg members and having a plurali-ty of
spaced roller assemblies secured to an upper surface of the table
top member. The table top member is of a ring shape having an
open central portion and a section of -the table top member cut
out to permit access to the open central portion. The revolving
tahle top assembly includes a main table top assembly having a
support track assembly connected thereto. The main table top
assembly includes six (6~ interconnected rigid instrument table
2Q sections and a pivotal entrance table section to gain access to
the open central portion. Similarly, the main table top assembly
is of ring shape having a central open portion but a continuous
top working surface when the entrance table section is in the
closed, latched, horizontal position. The support track assembly
is connected to an undersurface oE the main table top assembly and
-- 6
: q~
~ 3~
rides on the space(l r(~ller assemb~ies of the basic table t~p
member to permit rotation of the main table top assemhly. The
- electrical control and drive assembly includes 1) a table drive
assembly operably connected to the main table top assembly;
2) a power contact assembly; 3) a control panel assembly and 4)
an electrical control assembly. The table drive assembly includes
a drive motor memher connected through a gear box to a drive wheel
memher. The drive wheel member contacts the support track assem-
bly to selectively rotate the main table top assembly. ~he power
assembly includes 1) a stationary power contact assembly secured
to the basic table top member at a home base station; and 2) a
receptacle power contact assembly at each o the six ~6) lnstru-
ment table sections. Each receptacle power contact assembly
includes an electrical power outlet receptacle which is energized
only when reaching the home base station by the stationary power
contact assembly. The control panel assembly includes 1) an on-
off switch to initiate power to rotate the main table top assem-
bly; 2) a rheostat switch to control speed of subject rotation;
3) a table rotation switch to select direction of rota~ion of the
main table top assembly; 4) a power indicator light; and 5~ an
override switch is operable to by-pass one or more working
stations on initiating rotation of the main table top assembly.
The electrical control assembly provides power to 1) the drive
motor member; ~) the main power assembly; 3) the control panel
assembly; and 4) includes a control switch assembly. The control
switch assembly operates to automatically stop rotation of the
main table top assembly at the home base working station and pro-
vides electrical power to the receptacle power contact assembly
at the subject working station.
OBJECTS OF THE IN~NTION
.. _ . . . . _
One object of this invention is to provide a revolving
examination table apparatus having a circular table with a central
opening to receive an optometrist therein~with a revolving table
.1143~59
¦ top assembly to selectively move stations with examining equipme
¦ thereon to the home base work.ing station between the optometrist
¦ and his patient.
¦ Another ob~ect of this invention is to provide a
¦ revolving examination table apparatus o~ a circular ring shape
with a revolving table top assembly that is rotatable and
automatically stopped at a desired position.
Still, another object of this invention is to provide
l a revolving examination table apparatus of a circular ring shape
¦ operable to be selectively rotated to a home base working
station and provide electrical power to a receptacle member at
this position to power an examining instrument.
One other object of this invention is to provide a
~ revolvin~ examination table apparatus having a revolving table
¦ top assembly that is controlled by an electrical control and
I drive assembly in order to 1) control direction of rotation;
¦ 2) control speed of rotation; 3) automatically rotate the next
station to the home base working station, and 4) by-pass the
l automatic controls and move any station to the home base working
¦ station.
Still, one further object of this invention is to prov
a revolving examination table apparatus that is sturdy in constr
tion, attractive in appearance, reliable in operation, and easy
l to use.
2S ¦ Various other objects, advantages and features of the
l invention will become apparent to those skilled in the art from
¦ the following discussion, taken in conjunction with the
l accompanying drawings, in which: ~r
3~
Fig. 1 is a perspective vie~ of the revolviny
examination table apparatus of this invention
illustratin~ an entrance tahle section in the
open position;
Fig~ 2 is a fragmentary perspective view of the
- revolving examination table apparatus of this
invention having portions broken away for clarity;
Fig. 3 is a fra~mentary elevational view of a power
assembly of the revolving examination table apparatus
is this invention;
Fig. 4 is a fraqmentary plan view of an undersurface
of a revolving table top assembly of the revolving
examination table apparatus of this invention;
Fig. 5 is a fragmentary sectional view taken along
line 5-5 in Fig. 4:
Fig. 6 i5 a top plan view of the main support
base assembly o~ the revolving examination table
apparatus of this invention,
Fig. 7 is a fxagmentary top plan view of a portion of
the revolving table top assembly of this invention
lllustrating a latch assembly;
Fig. 8 is an enlarged sectional view taken along
line 8-8 in Fig. 7;
Fig. 9 is a ~ragm~ntary plan view ta~en along Iine
9-9 in Fig. 7; and
Fig. 10 is an electrical schematic of an electrical
control and drive assemhly of this invention~
The~following is a discussion and description of
preferred specific embodiments of the new revolving examination
tahle apparatus of this invention, such being made with reference
to the drawings, whereupon the same reference numerals are used
to indicate the same or similar parts and/or structure~ It is
to be understood that such discussion and ~escription is not to
unduly limit the scope of the inve~tionO
~ L L~ 459
¦ DESCRIPTION OF T}~E INVE~TION
¦ Referring to the drawings in detail and in particular
¦ to Fig. 1, a revolving examination tab]e apparatus o~ this
l invention, indicated generally at 12, is shown associated with
¦ a conventional optometrist examining stool 14. The revolving
examination table apparatus 12 includes a main support base
assembly 16; a revolving table top assembly 18 mounted on the
main support base assembly 16; and an electrical control and
l drive assembly 20 operable to rotate the revolving table top
¦ assembly 18 in a manner to be explained.
The main support base assembly 16 includes a basic
table top member 22 supported on spaced support leg members 24
and having spaced roller assemblies 26 secured to an upper
l support surface 28 of the basic table top member 22.
¦ As shown in Fig. 6, the basic table top member 22 is
of a ring shape having a central opening 30 with entrance thereto
gained through a cut-out section 31. The basic table top
member 22 is formed with a motor cut-out section 32 for reasons
l to be explained. The upper support sur~ace 28 extends in a
¦ horizontal piane and a plurality, namely, fourteen of the
roller assemblies 26 are used.
Each roller assembly 26 includes an angle iron support
member 34 secured to the basic table top member 22 and having a
l roller member 36 rotatably connected thereto on a shaft member 38
¦ The ro~ler members 36 rotate about a horizontal axis of the
respective shaft members 3~ to provide outer roller support
surfaces 39 ~or reasons to be explained. ,r _`
I
I ~ ~0
~ 34S~
¦ The revolving table top assembly 18 inciudes a main
¦ table top assembly 40 with a support track assembly 42 connected
¦ thereto. The main table top assemb:ly 40 is of circular ring shap
hut having a seven sided central opening 44 to receive the
S ¦ optometrist therein. The main table top assembly 40 includes
¦ six (6) interconnected instrument table sections 46 and one
pivotally connected entrance table section 48 movable from opene~
l to closed and latched positions.
¦ Each instrument table section 46 includes a main body
¦ member 50 integral with downwardly depending arcuate front wall
l 52, inclined sidewalls 54 and an inner wall 56. The adjacent
¦ sidewalls 64 of instrument table sections 46 are secured to~ether
as by nut and bolt members, rivet members, etc.
l The entrance table section 48 is substantially identic~
1 to an instrument table section 46 except having 1) one sidewall
l 54 pivotally connected by a hinge member 58 to a sidewall 54 of
¦ an adjacent instrument table section 46 and 2) the area adjacent
the other sidewall 54 has a latch assembly 60.
l As shown in Figs. 7 and 8, the latch assembly 60 includ
1) a rectangular support shell 62 mounted on an opening 64
in the main body member 50; and 2) an actuator handle assembly 66
connected to the support shell 62. The actuator handle assembly
66 includes 1) a handle member 68 pivotally mounted on a support
shaft 70; and 2) a pair of lock pins 72 connected to the handle
member 68 by linkage members 74. The support shaft 70 is connecl
to the support shell 62. The lock pins 72 are movable in guide
holes 76 in the entrance table section 48 into pin receiving
holes 77 in the ad~acent instrument table section 46.
` As shown in Fig. 8, the latch assembly ~0 is in the
latched position as shown in solid lines. The handle member
68 is pivoted to the positlon as shown in dotted lines to move
the lock pins 72 as shown by the arrow 78 out of the pin receivi
holes 77. The entrance table section 48 may then be moved to th
open position as shown in Fig. 1.
The support track assembly 42 includes a track assembl
80 secured to the undersurface oi the main table top assembly 40
as by support assemblies 82 (Figs. 4 and 5)0 Each support
assembly 82 includes an anchor lug 84 connected to a port~on
o~ the track assembly 80 by a nut and bolt member 86.
The track assembly 80 includes an inner track member 8,
: and an outer track member 90, each o~ rectangular plate shape
in transverse cross section (~ig. 5~. The inner track member 88
and the outer track member 90 are of continuous circular shape
except at the entraDce table section 48 where they are short
sections to allow opening o~ the entrance table section 48 as
shown in Fig. 1.
It is obvious that the track assembly 80 is operable
to be supported on the support surfaces 39 of the roller members
36 o~ the spaced roller assemblies 26 to permit rotation o~ the
revolving table top assembly 18 in a manner to be explained.
The electrical control and drive assembly 20 includes
. 1) a table drive assembly 92 connected to the basic table top
assembly 22; 2) a main power assembly 94; 3) a control panel
. assembly 96 and 4) an electrical control assembly 98.
As shown in Fig. 6, the table drive assembly 92
includes a drive motor member 101 connected through a gear box
: member 103 to a drive wheel member 105. The drive wheel member
105 extends through the motor cut-out section 32 in the basic
la~ 3~
tabl~ top memher 22 to contact the outer track memb~r 9~ of the
track ass~mbly 80 to rotate the revolvin~ -tah].e top ~ss~mhly 18
in a manner to he explaine~.
The main power assembly 94 includes l) a stationar~
I 5 power contact assem~ly 107 secured to the upper support sur~ce
¦ 28 of the ~asic table top member 22 at the home base worklng
! station indicated at 1.09; and 2) a plurality of receptacle power
contact assemblies 110, each secure~ to one of the six (6)
instrument table sections 46.
¦ 10 As shown in Fig. 3, the stationary power cQntact
assembly 107 is positioned at the home base working station 109
and includes a support base memher ll2 and an electrial collector
assembly 114 secured to the support base member 11.2 by a connector
assembly 116. As noted in Fig. 2, support base member 112 is
secured to the basic table top member 22 as by bolt members 118.
The electrical collector assembly 114 includes three .
identical units~ each having a U-shaped insulator body 120; a
conductor member 122 mounted on the insulator body 120p and a
wire member to connect the conductor member 122 ~o the control
panel assembly 96 as will be explained. The conductor member
122 may be made o~ copper and shielded by the plastic insulator
body 120.
The conneator assembly 116 indicates 1~ a bolt member
124 mounted on each end of the insulator body 120 and connected
to the support base member 112 and 2) a compression spring 126
mounted about each bolt member 124 between the insul~tor body 120
and the support base member 112~ By use of the compression
spriny 126, it is obvious that each unit o the electrical
collector assembly 114 is movable as shown by an arrow 128 to
assure electr~¢al contact ~i.th the rotating receptacle power
contact assemblie~ 110.
11'~3~9
Each receptacle power contact assembly.llO includes a
power conductor assembly 130 connected by electrical connector
members 132 to a receptacle member 134. The power conduc-tor
assembly 130 includes a V-shape support housing 136 having a
conductor assembly 138 mounted thereon. The support h~using 136
is secured to an undersurface of the re~olving table top
assembly 18.
The conductor assembly 138 has three identical units
each having an insulated guide housing 140 with an electrical
conductor member 142 mounted in the guide housing 140. The
guide housings 140 are connected as by bolt members 144 to the
support housing 136.
The electrical conductor members 142 are constructed
of copper and operable to trans~er electri.cal power ~rom the
stationary power contact assembly 107 through the electrical
connector members 132 to the receptacle member 134.
The electrical connector members 142 include a ground
wire member 146; a power wire member 148; and a sa:fety ground
wire member 150.
The receptacle member 134 is a conventional power
outlet havlng a switch actuator or support hous:ing 152; a lid
member 154 mounted on the support housing 152; and an electrica]
: receptacle 156 mounted in the support housing 152. The electric
~ receptacle 156 is connected to the electrical connector members
142 in a conventional manner to supply electrical power to an
electrical plug 158 on -the various instruments when in the
home base working station 109.
. . ' .)~
~3~S9
. ¦ As shown in Fig. 9, the control panel assembly 96
includes a support member 160 secured to the basic table top
. ¦ member 22 and having mounted thereon 1) an on-of~ switch 162;
2) a rheostat switch 164; 3) a table direction rotation switch
166; 4) an override switch 168 and 5~ a power indicator light
170,
The electrical control assembly 98 includes a control
switch assembly 172 mounted on the basic table top member 22
l adjacent the stationary power contact assembly 107 (Fig. 2) and
a circuit assembly 174 ~Fig. 10).
¦ The control switch assembly 172 includes three mîcro
l switches being 1) a normally clo~ed motor power switcb 176; and
¦ 2) a pair o~ normally opened receptacle power switches 178 and
180 to provide power to the receptacle power contact assembly
1 110 in a manner to be explained.
As shown in Figs. 2 and 6, the three micro switches
are secured to an upper surface 23 o.f the basic table top member
22. The micro switches are of a conventional nature, each having
l an actuator lever that is moved by the support ho~sing 152 o~ the
¦ receptacle member 134. Nore particularly~ the mo~or power switch.
176 is opened and the receptacle power switches 178 and 180 are
closed on CoDtact of the support housing 152 with the actuator
levers.
l All reference to "wire" in the description o~ the
¦ circuit assembly 174 is understood to be conventional insulated
electrical wire.
The circuit assembly 174 includes a plug-in member 182
.¦ connected to a power wire 184; a ground wire 186; and a safety
l ground wire 188. A circuit breaker 190 is mounted in the power
wire 18~ which is then connected to the rheostat switch 164 and
through the receptacle power switch 178 and wire 189 to the
. I conductor member 122 o~ the stationary.power contact assembly 107.
~ 9
. I . . .
¦ The power indicator light 170 is connected by wires
190 and 192 between the power wire 184 and the ground wire 188
to indicate power available to the unit.
The ground wire ].86 is 1) connected by a wire 194 to
¦ the rheostat switch 164; 2) connected by a wire 196 to the
receptacle power switch 180 and then by wire 198 to the conduct
member 122; and 3) connected by a wire 201 to the table rotatio
switch 166. A contact lever 203 in the table rotation switch
166 connects the wire 201 to either a wire 205 or a wire 207
1 connected to the drive motor member 101 to select direction of
motor rotation. Simultaneously, a contact lever 209 in the tab:
rotation switch 166 connects a wire 211 to the wire 207 in the
¦ condition o~ Fig. 10 and the wire 211 to the wire 205 in the
l other position to change direction o~ motor rotation. It is
¦ obvious that the contact levers 203 and 209 move conjointly
l as interconnected as shown by a dotted line 212. A motor
: ~ rotation switch 166 is well known in the prior art.
The safety ground wire 188 is connectled to the drive
I motor member 101 and connected by a wire 214 to the conductor
¦ member 1~2.
The rheostat switch 164 is o~ a conventional nature
l and varies the input voltage of 110 volts to an outlet wire 216
¦ to control speed o~ rotation oi the drive motor member 101. Th~
: outlet wire 216 is connected to the override switch 168 and, wh~
the override switch 168 is closed, by a wire 218 to the drive
motor mernber 101.
Also, the outlet wire 216 is connected to the on-o~
switch 162 which, in turn, is connected by a wire 220 to the
~3~S~
¦ normally closed motor power switch 176. The motor power swltch
¦ 176 is connected to the wire 218 to the drive motor member 101.
¦ It is seen that the receptacle power contact aseembly
¦ 110 includes 1) the electrical conductor member 142 connected
to the power wire member 148 to the receptacle member 134; 2
I the electrical conductor member 142 connected to the safety
¦ ground wire member 150 to the receptacle member 134; and 3)
the electrical conductor member 142 connected to the ground wire
l member 146 to the receptacle member 134.
USE AND OPERATION OF THE INVENTION
As shown in Fig. 1, the entrance table section 48 is
pivoted to the open position when above the cut-out section 31
of the basic table top member 22. This permits an optometrist
l to enter the center of the revolving examination table apparatus
¦ 12 and utilize the stool 14 while examining a patient. The
optometrist would face the home base working station 109 while
¦ the patient would be positioned on the outer, opposite side
thereof.
l The entrance table section 48 would be moved to the
I closed, horizontal position and secured by the latch assembly
60 to the ad~acent instrument table section 46.
Next, the optometrist may select the speed of rotation
of the revolving table top assembly 18 by setting the rheostat
switch 164 as desired. The direction of rotation can be
~5 ¦ chosen by use of the table rotation switch 166.
l Power is supplied to the contro~ panel assembly 96
¦ by plugging the plug 182 into a conventional electrical
power receptable and the power indicator light 17~ would be
energized. The on-off switch 162 is placed in the "ON"
position. Nothing happens as the station power contact assembl~
107 is in contact with the receptacle power contact assembly llC
and the receptacle member 134 actuates the control switch
1~
3~59
¦ assembly 172 as shown in Fig~ 10. Thus, the normally closed
¦ motor power switch 176 is opened and no power is supplied
through wire 220 to wire 21B to the motor member 101.
To rotate the revolving table top assembly 18 to plac~
I an adjacent instrument table sectlon 46 in the home base workin~
¦ station 109 positionl the override switch 168, which is spring
loaded J iS depressed to supply power through wire 184, rheostat
switch 164, wire 216, and wire 218 to the motor member 101.
After slight movement of the revolving table top
¦ assembly 18, the recept~cle member 134 moves out of contact
with the control switch-assembly 172 to close the motor power
switch 176. The override switch 16~ is released and power is
then supplie~ ~rom wire 216, on-o~i swttch 162, wire 220, motor
l power switch 176, and wire 218 to the motor member 101 to contir
rotation of the revolving table top assembly 18.
~ On positioning the next instrument station at the
¦ home ~ase working station 109, the next receptacle member 134
contacts the control switch assembly 172 to open the motor
power switch 176 and cease power to the motor member 101 to sto~
; 20 ¦ rotation of the revolving table top assembly 18~ Simultaneousl~
the receptacle power switches 178 and 180 are clvsed to supply
electrical power to the receptacle 134 having an instrument
associated therewith now able to be energized.
This procedure may be repeated to move the revolving
¦ table top assembly 18 to the next instrument table section 46
by depressing the override switch 168 as described above and
the procedure would be repeated.
Also t the operator may by-pass any instrument table
l section 46 by holding in the override switch 168 which will
¦ continue power to the m~tor member 101 through wlres 216 and
¦ 218. On approaching a desired instrument table section 46,
¦ the override switch 168 is released and the automatic stopping
l o~ the revolving table top assembly 18 will talce place.
. .'
11'1~3~59
The revolving ex~nination table apparatus is very use-
ful as permits the optometrist and the patient to remain in
one position and rotate the necessary examination instruments
to the home base working station. l'he revolving examination
table apparatus is durable in construction, reliable in
operation, and easy to use.
While the invention has been described in conjunction
with pre~erred specific embodiments thereof, it will be under-
stood that this description is intended to illustrate and not to
limit the scope of the invention, which is defined by the
following claims.
I CLAIM:
