US77116A - Jthographer - Google Patents

Jthographer Download PDF

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Publication number
US77116A
US77116A US77116DA US77116A US 77116 A US77116 A US 77116A US 77116D A US77116D A US 77116DA US 77116 A US77116 A US 77116A
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United States
Prior art keywords
chair
roller
frame
spring
jthographer
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Expired - Lifetime
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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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/0257—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame slidingly movable in the base frame, e.g. by rollers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs

Definitions

  • Figure 2 a front view
  • Figure 3 a vertical section of it.
  • projections c c extend downward, and ⁇ embrace the opposite sides of a base-frame, A, ,which is designed to' rest onthe floor.
  • Each of the parts c c is connected to the said frame A by meansof a journal, d', extended from the frame, land into the said part c, the same being to enable theehairto be tiltedori such journals.
  • a roller or barrel, d,arranged between andv having bearings in the cheeksv e e of the frame A has two bands, fg, fixed to the lower part of vits circumference, they being wound around .the roller in opposijte directions, and fastened, at or near their upper ends, to the seat of the chair.
  • roller In rear of. the roller is a rod, z, which extends from one cheek to theo-ther of the frame A, and serves to support one end of a bow-spring, which is fixed' to it, This Spring, arranged with respect to the roller, in
  • the spring by its arrangement, will operate, with the roller and the bands, to chec'k the chair While-being tilted in either direction',y
  • the chair By the mechanism. applied to the .chair and its supporting-stand, the chair maybe movoptilted with great ease by and to asitter. v .s l ,it

Description

I @with tf-llami @frn Laim Paw No. 77,116, ama Apri-z 21, 186s.
IMPROVED TILTING CHAIR.
ihe riphmevrsietteh in in tigen eiiers ndert mitl making :irrt-nf its time.
TO ALL PERSONS. TQ WOM THESE PRESENTS AMAY CIOMEz Be it known thatI, CALVINYD.A SMITH, of Baldwinsvill'e, in the county of Worcester, and State of Massachusetts, have invented'a new and yuseful or'improvedTilting Chair; and do hereby declare the same to'lbe' 'fully described inthe following specification, Aand represented in the accompanying drawings, of which-f Figure 1 is 'a side elevation,
l Figure 2 a front view, and
Figure 3 a vertical section of it.
From the seat, a, and back, b, lof the chair, projections c c extend downward, and `embrace the opposite sides of a base-frame, A, ,which is designed to' rest onthe floor.' Each of the parts c c is connected to the said frame A by meansof a journal, d', extended from the frame, land into the said part c, the same being to enable theehairto be tiltedori such journals.
A roller or barrel, d,arranged between andv having bearings in the cheeksv e e of the frame Ahas two bands, fg, fixed to the lower part of vits circumference, they being wound around .the roller in opposijte directions, and fastened, at or near their upper ends, to the seat of the chair.
In rear of. the roller is a rod, z, which extends from one cheek to theo-ther of the frame A, and serves to support one end ofa bow-spring, which is fixed' to it, This Spring, arranged with respect to the roller, in
manner as representedin fig. 3, is connected to the middle of the lower` part of the roller, means of a ring,
l, and a link or loop, m. Y
The spring, by its arrangement, will operate, with the roller and the bands, to chec'k the chair While-being tilted in either direction',y
By the mechanism. applied to the .chair and its supporting-stand, the chair maybe movoptilted with great ease by and to asitter. v .s l ,it
I claim the arrangement and combination of the spring, the bands, and the barrelor roller, as appl the chair audits stand. l
Also, their arrangement with and application to the stand and chair, substantially in manner as specified.
` CALVIN D. SMITH.
Witnesses:
R. H. EDDY, I". P. HALE, J r.
US77116D Jthographer Expired - Lifetime US77116A (en)

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US77116A true US77116A (en) 1868-04-21

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