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US255908A - allen - Google Patents

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Publication number
US255908A
US255908A US255908DA US255908A US 255908 A US255908 A US 255908A US 255908D A US255908D A US 255908DA US 255908 A US255908 A US 255908A
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Prior art keywords
rack
allen
bar
pivoted
chair
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Expired - Lifetime
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1056Arrangements for adjusting the seat
    • A61G5/1067Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/235Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
    • B60N2/2352Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with external pawls

Definitions

  • Figure 1 is a sectional side elevation of a chair containing my improvements.
  • Fig. 2 is a perspective view of the slide and rack mechanism detached.
  • A is the seat-frame, provided with fixed side arms, B, and back 0, which is hinged at a to the seat-frame.
  • the arms are grooved at the under side, and each contains the devices as follows:
  • D is a plate fixed to the arm by screws and formed with a longitudinal slot, b.
  • c is arack-bar held to plate D by headed screws or pins (1 cl passing through slot 1), so that the rack is free to slide eudwise.
  • e is a rod or bar pivoted by one pin, d, at one end to'the rack 0, and attached at the other end bya knuckle-joint to a plate, g, attached on the back (J.
  • h is a spring attached to the arm B and connected to rack c at the end opposite the connection of bar 0, so that the spring tends to draw the rack and bar endwise and raise the chair-back.
  • lever E is a pawl-lever pivoted on plate D and having its inner end bent at right angles to engage the rack c.
  • the outer end of lever E has a knob extending to the outer side of the arm in position for convenient handling by the occupant of the chair.
  • the lever is retained in connection with therack by gravity. 4 5
  • the foot-rest F is a frame suitably upholstered and pivoted by a rod or pins, 2', between 5 in use, but will form the subject-matter of an- 6 other application.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Special Chairs (AREA)

Description

(N o ModeL) r M. S. ALLEN.
REULINING CHAIR. No. 255,908. Patented Apr.4,1882.
INVENTOR ATTORNEYS.
UNITED STATES,
PATENT OFFICE.
MORRIS S. ALLEN, OF BROOKLYN, NEW YORK, ASSIGNOR TO HIMSELF AND JOHN S. SINEY, OF SAME PLACE.
.RECLlNING-CHAIR.
SPECIFICATION forming part of Letters Patent No. 255,908, dated April 4, 1882, Application filed November 252, 1881. (N0 model.)
To all whomt'i may concern:
Be it known that I, MoRRIs S. ALLEN, of Brooklymin the county of Kings and State of New York, have invented a new and useful Improvement in Reclining-Chairs, of which the following is a full, clear, and exact description.
Myimprovementsrelate totheclass of chairs having pivoted backs adjustable by ratchet mechanism secured in the arms, which are stationary.
Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.
Figure 1 is a sectional side elevation of a chair containing my improvements. Fig. 2 is a perspective view of the slide and rack mechanism detached.
A is the seat-frame, provided with fixed side arms, B, and back 0, which is hinged at a to the seat-frame. The arms are grooved at the under side, and each contains the devices as follows:
D is a plate fixed to the arm by screws and formed with a longitudinal slot, b.
c is arack-bar held to plate D by headed screws or pins (1 cl passing through slot 1), so that the rack is free to slide eudwise.
e is a rod or bar pivoted by one pin, d, at one end to'the rack 0, and attached at the other end bya knuckle-joint to a plate, g, attached on the back (J.
h is a spring attached to the arm B and connected to rack c at the end opposite the connection of bar 0, so that the spring tends to draw the rack and bar endwise and raise the chair-back.
E is a pawl-lever pivoted on plate D and having its inner end bent at right angles to engage the rack c. The outer end of lever E has a knob extending to the outer side of the arm in position for convenient handling by the occupant of the chair. The lever is retained in connection with therack by gravity. 4 5
With this construction the occupant of the chair brings the back to the position required by raising the handle ends of levers E to disengage their inner ends and leaning backward.
The back is held against return as soon as the 0 levers are released, and to raise the back it is only necessary to raise the levers, when the springs will draw the back up.-
The foot-rest F is a frame suitably upholstered and pivoted by a rod or pins, 2', between 5 in use, but will form the subject-matter of an- 6 other application.
Having thus described my invention,I claim as new and desire to secure by Letters Patent- The combination, with the seat frame A,
having fixed sidearms, B, grooved on the un- 0 der side, and the back (J, hinged to said frame at a, of the plates D, having longitudinal slot 1), the rack-bar c, passing through slot 1), the rod 0, pivoted at one end to said rack and knuckle-jointed to a plate, g, on back 0, the 75 spring h, attached to arm B and connected with rack-bar 0 at the end opposite the connection of bar 6, and the end-bent pawl-lever E, pivoted on plate D, for the purpose specified.
MORRIS S. ALLEN.
Witnesses:
GEO. D. WALKER, O; SEDGWICK.
In this po- 60
US255908D allen Expired - Lifetime US255908A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506926A (en) * 1983-04-04 1985-03-26 Peoploungers, Inc. Reclining chair with push-button actuator mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506926A (en) * 1983-04-04 1985-03-26 Peoploungers, Inc. Reclining chair with push-button actuator mechanism

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