US190317A - Improvement in barbers chairs - Google Patents

Improvement in barbers chairs Download PDF

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Publication number
US190317A
US190317A US190317DA US190317A US 190317 A US190317 A US 190317A US 190317D A US190317D A US 190317DA US 190317 A US190317 A US 190317A
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Prior art keywords
improvement
spindle
bracket
chair
gear
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/04—Hairdressers' or similar chairs
    • A47C1/06—Hairdressers' or similar chairs adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats 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
    • B60N2/225—Seats 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 cycloidal or planetary mechanisms
    • B60N2/2252—Seats 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 cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination
    • A47C1/025—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination by means of a rack-and-pinion or like gearing mechanism
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/38—Supports for the head or the back for the head, e.g. detachable
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/402—Supports for the head or the back for the back adjustable in height

Definitions

  • BARBERSWHAIR No. 190,317. Patented May 1, 1877.
  • My invention has relation to that class of barbers chairs in which a hinged adjustable back is raised and lowered by means of a handwheel and screw; and my improvements have reference to the special construction and combination hereinafter described, the object of said improvements being to simplify and cheapen the cost of manufacture, and at the same time increase the efiiciency of the parts by means of which the back is adjusted
  • A is a chair, and B the back thereof, having arms I) b, pivoted or hinged at c to the standards or supports (J. D is an adjustable headrest.
  • E is a bracket, attached to back part of the seat or chair frame, being fastened thereto by screws e e.
  • Said bracket has a projecting flange or car, 6 and stud or boss 6 the latter forming a hearing or socket for a horizontal shaft, 1, and step for a vertical screw shaft or spindle, G.
  • the shaftf has a bcvel-gear,f and hand-wheel F; and the screw-spindle G has a bevel-gear, g, which meshes with that on the shaft f.
  • Said shaft is held to its place in the bracketE by a screw, f having an enlarged head, which fits in a countersunk recess in the back of said bracket.
  • the bracket E has a smooth opening, through I which the spindle G passes, said spindle being i also smooth at its lower extremity, or where it passes through the bracket.
  • the upper extremity of said spindle passes into a threaded nut, I, said nut being formed with trunnions t i, on which are pivoted or swiveled arms K K.
  • the upper extremities of said arms are bifurcated, as shown, and attached by pins 1 Z to the ears m m of plates M M, which are secured by screws m to the chair-back B.
  • the hand-wheel G is turned, the number of turns required to elevate or lower said backto its full extent being governed by the relative proportions of the gear-wheels and the pitch of the thread on the spindle G.
  • bracket E having flange e and stur or boss 6 the latter forming a socket or bearing for the shaft f and step for the screwspindle G, substantially as shown and described.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Description

1, GRIENDLING, Sr.
BARBERSWHAIR. No. 190,317. Patented May 1, 1877.
N. PETERS. PHOTO-LITHDGRAPHER, WASHINGTON, D c.
UNITED STATES PATENT, @FFIC,
JOHN GRIENDLING, SR, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN BARBERS CHAIRS.
Specification forming part of Letters Patent No. 190,317, dated May 1, 1877; application filed December 22, 1876.
To all whom it may concern Be it known that I, JOHN GBIENDLING, Sr., of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Barber- Ghairs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification, in which- Figure 1 is a side elevation of a chair with my improvements attached thereto. Figs. 2 and 3 are detail sectional elevations.
My invention has relation to that class of barbers chairs in which a hinged adjustable back is raised and lowered by means of a handwheel and screw; and my improvements have reference to the special construction and combination hereinafter described, the object of said improvements being to simplify and cheapen the cost of manufacture, and at the same time increase the efiiciency of the parts by means of which the back is adjusted Referring to the accompanying drawings, which illustrate my improvements applied, A is a chair, and B the back thereof, having arms I) b, pivoted or hinged at c to the standards or supports (J. D is an adjustable headrest.
E is a bracket, attached to back part of the seat or chair frame, being fastened thereto by screws e e. Said bracket has a projecting flange or car, 6 and stud or boss 6 the latter forming a hearing or socket for a horizontal shaft, 1, and step for a vertical screw shaft or spindle, G. The shaftf has a bcvel-gear,f and hand-wheel F; and the screw-spindle G has a bevel-gear, g, which meshes with that on the shaft f. Said shaft is held to its place in the bracketE by a screw, f having an enlarged head, which fits in a countersunk recess in the back of said bracket.
The bracket E has a smooth opening, through I which the spindle G passes, said spindle being i also smooth at its lower extremity, or where it passes through the bracket. The upper extremity of said spindle passes into a threaded nut, I, said nut being formed with trunnions t i, on which are pivoted or swiveled arms K K. The upper extremities of said arms are bifurcated, as shown, and attached by pins 1 Z to the ears m m of plates M M, which are secured by screws m to the chair-back B.
To secure the necessary adjustment of the chair-back, the hand-wheel G is turned, the number of turns required to elevate or lower said backto its full extent being governed by the relative proportions of the gear-wheels and the pitch of the thread on the spindle G.
What I claim as my invention is 1. The bracket E, having flange e and stur or boss 6 the latter forming a socket or bearing for the shaft f and step for the screwspindle G, substantially as shown and described.
2. The combination, with the shaft f, having its bearing in the stud c of the screwspindle G, having bevel-gear g, located below the flange e of the bracket E, and meshing with the wheel f on said shattf, substantially as shown and described.
3. The combination of the screw-spindle G, nut I, having trunnions M, swiveled arms K K, and plates M M, secured to the chair-back B, substantially as shown and described.
4. The chair A, having back B, hinged to standards 0, in combination with bracket E, formed with flange e and boss 6 shaftf, having gear f and hand-wheel F, screw-spindle G, secured to gear-wheel g, and nut I, having trunnions "i i, swiveled arms K K, and plates M M, constructed and arranged for joint operation, substantially as shown and set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 19th day of December, 1876.
JOHN GRIENDLING, SR.
Witnesses HERMANN DOYENHARDT, GEORG BEUTLER.
US190317D Improvement in barbers chairs Expired - Lifetime US190317A (en)

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US190317A true US190317A (en) 1877-05-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609034A (en) * 1946-10-29 1952-09-02 American Seating Co Chair
US20030185832A1 (en) * 1992-03-05 2003-10-02 Board Of Regents, The University Of Texas System Combined methods and compositions for tumor vasculature targeting and tumor treatment
US20100111963A1 (en) * 2006-11-10 2010-05-06 Genentech, Inc. Method for treating age-related macular degeneration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609034A (en) * 1946-10-29 1952-09-02 American Seating Co Chair
US20030185832A1 (en) * 1992-03-05 2003-10-02 Board Of Regents, The University Of Texas System Combined methods and compositions for tumor vasculature targeting and tumor treatment
US20100111963A1 (en) * 2006-11-10 2010-05-06 Genentech, Inc. Method for treating age-related macular degeneration

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