US176672A - Improvement in barbers chairs - Google Patents

Description

T.' NOONAN. BARBERs'gcHAIR. n N0.176`.67Z. Patented Apri1.25,11876. "l

MMM/5m ILPETERS. PHOTO-LITHOGRAFHER, WASHINGTN. D. C4

UNITED Srnlrns A'P nui:ntzrr Genion,

VAND M. It. GATELY.

' IMPROVEMENT IN BARBERS CHAIRS.

Specification forming part of Letters Patent No. 176,672, dated April 25, 1876; application filed June 8, 1875.

To all whom it may concern' Be it known that I, vTIMOTHY NooNAN, of Boston, in -the county of Suffolk and State of Massachusetts, have invented certain Improveinents in Chairs, of which the following is a specification:

In the accompanying drawings, forming a part of this specification, Figure l represents a sectional view of my invention, showing the chair-back Without its upholstery. Fig. 2 is a front view of the chair, showing the-back i without its upholstery; Fig. 3, a detail view inafter-described means for adjusting the back of a chair with respect to height and inclination, and holding said back at any desired angle or height, all of which I will now proceed to describe, and point out in my claim.

In the drawings, A represents the chairfrarne, the sides` or arms C of which are properly curved on` the top, or otherwise shaped to extend upward at the back. The inside of each arm in its upper portion is provided with a segmental slot or way, d, preferably formed in a metal plate, D,-which is suitably attached to the chair-frame. Each of the slots d is provided with a series of notches or apertures, a, adapted to receivethe ends of spring latches or bolts b b', which operate through holders or guides E, attached to the chair-back F. The guides E are attached one on each side of the front of the chair-back F, and extend beyond the sides of the back, so as to engage with, and travel in, the slots or grooves d.

-'lhe latches b b are, near theirouter ends,

formed each with a collar or shoulder, against which abuts the outer end of a coiled spring, e, contained within each of the guides E. The inner ends of tllese springs e abut against suitable stop-pieces f, projecting at right angles from the front of the chair-back. TheA latches or rods b b extend through the stoppieces j' toward the center of the chair-back, where they are connected to a disk or other suitable turning-plate, G, on oppositesides of the pivot thereof, the disk G being connected with a stem, g, which is turned'by a suitable handle, h, projecting from the rear of the back F, the turning of the disk G simultaneously disconnecting the latches b b from the apertures in the slots or ways d d, the springs e serving to shoot the latches into the apertures a, and hold the back in any position required when the handle is released. To prevent friction and wear on the chair-back F, the stem g is journaled in a plate, El, on the back of a chair-back, in such manner as to be prevented from having any longitudinal play, and the disk G is secured by the stem g at a little distance from the front of a chair-back, as shown A in Fig. 3, thus allowing the inner disk Gr to be operated without wearing against the back F. 'lhe lower portion of the back F is guided by lugs I I, which may be made in one piece, attached to the face of the chair-back, beyond which they extend on either side, so as to engage with segmental slots lc, formed in metal platesK, screwed or otherwise attached to the inner sides of the chair-frame below the slots d; or the plates K may be dispensed with and the lugs I be engaged to travel in a groove made in the woodwork of the chair.

The plates D and K are so located and their slots are so curved as to permit the proper elevation, depression, and inclination of the Ghairback.

It will be readily seen that by turning.A the handle It the latches or bolts b b are simultaneously freed (rom the apertures a, thus allowing the back F to be raised or lowered and inclined backward more or less, While the release of the handle allows the bolts or rods to be forced into the apertures by the action of the springs e, thus confining the back in the desired position. 'The guides E and lugs l, traveling respectively in the curved grooves or slots, serve to guide the back during its adjustment, and to hold it in proper position.

The devices are simple and inexpensive,

and the operation of adjusting the back is guides E, latchesbb, and lugs I, substantially readily and conveniently performed, with less as described.

trouble and inconvenience than by the ordi- In testimony whereof I have signed my nary methods, the height and inclination bename to this speciticntion in the presence of ing varied'simultaneously. `two subscribing witnesses.

I claim as my invention- TIMOTHY NOONAN. The combination of the chair-frame A,.hav Witnesses: ing the segmental slots d d and 1c k, the former SAML M. BARTON, having orifices a, with the back F, having the C. F. BROWN. v 1

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