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Patent 8306 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 8306
(21) Application Number: 8306
(54) English Title: IMPROVEMENTS ON DRILLING MACHINES
(54) French Title: PERFECTIONNEMENTS AUX MACHINES A FORER
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • JARDINE, ANDREW (Canada)
(73) Owners :
  • ANDREW JARDINE
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1878-01-21
(22) Filed Date:
Availability of licence: N/A
Dedicated to the Public: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data: None

Abstracts

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Claims

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Claim lst The sliding frame having arms d e, in which is journalled the shaft f, hollow arm k, sliding in arm a, of the frame A, and carrying the drill spindle j, provided with pinion meshing with bevelled and wheel h, on shaft f, arms m o, the former sliding on rail p of the frame A, and carrying the arms q r which terminate in arm s sliding in arm c of the frame A, and provided with a bridge having a bearing u, bearing on the end of the drill spindle j. 2nd The arm s of the sliding frame, provided with a spiral groove 4 and connected to the feed screw 1, by sleeve 2, having set screw 3, for taking up the frictional wear. 3rd The feed lever 7, fulcrumed to the arm e and operated by the cam 8, on shaft f and provided with a pawl 6, in combination with a ratchet wheel 5 and feed screw 1, for imparting auto¬matic feed motion to the drill.
Description

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Representative Drawing

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Administrative Status

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Event History

Description Date
Inactive: Expired (old Act Patent) latest possible expiry date 1896-01-21
Grant by Issuance 1878-01-21

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
ANDREW JARDINE
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
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