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Patent 21361 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 21361
(21) Application Number: 21361
(54) English Title: LOAD LIFTER
(54) French Title: MONTE CHARGE
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • LUCAS, WILLIAM (Canada)
(73) Owners :
  • WILLIAM LUCAS
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1885-04-02
(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

Note: Claims are shown in the official language in which they were submitted.

Claim 1st. A shaft A, carried in suitable bearings at an elevated point in a barn or other building, and having attached to it the ropes B and D, the sheave-pulleys E and bar or scantling F in combination with the grooved pulley G, having wound upon if the rope H. which is carried round the grooved rollers J, and K, and the pivoted block L contained within the box I, the whole being arranged and operating substantially as and for the purpose specified. 2nd. As an improved clutch, the rollers, J and K, having ratchet teeth m, in combination with the pivoted block' L, carried on the pawls M. the whole being arranged and operating substantially as and for the purpose specified 3rd. The ropes B wound round sheaves on the shaft A, and arranged to be connected at their ends to the body C and the ropes D. also wound round sheaves on the shaft A., and connected to the scantling F, which is longer than the width of the body C, in combination with the rope H wound round the pulley G, and controlled by a frictional device, substantially as and for the purposes described:
Description

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Representative Drawing

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Administrative Status

2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.

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Event History

Description Date
Inactive: Expired (old Act Patent) latest possible expiry date 1903-04-02
Grant by Issuance 1885-04-02

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
WILLIAM LUCAS
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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