US289596A - armour - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

J. ARMOUR & JHSGHOTT. FASTENING FOR ADJUSTABLBHEAD REST S.

No. 289,596. Patented Dec. 4, 1883. I

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- FASTENING FUR ADJUSTABLE HEAD BESTS- No. 289,596. Patented Dem 4, 1883."

UNITE STATES PAT NT OFFICE.

JAMES H. ARMOUR AND JULIUS SOHOTT, OF KANSAS CITY, MISSOURI.

FASTENING FOR ADJUSTABLE HEAD-RESTS.

SBECIFICATION forming part of Letters Patent No. 289,596, dated December 4, 1883.

Application tiled July 27, 1883. (No model.)

2' 0 all whom it may concern:

Be it known that we, JAMns H. ARMOUR and J ULIUs SOHOTT, citizens of the United States, residing at Kansas City, in the county.

of Jackson and State of Missouri, have invented certain new and useful Improvements in Fasteners for Adjustable Head-Bests; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art towhich it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

Our invention has for its object an independent adjustment of the head-rest of a reclining-chair in relation to the back at any required angle, and its retention at such points of elevation and declension as may be convenient to the occupant of the chair; and it consists in the novel construction and arrangement of its several parts, as will hereinafter be described, and specifically pointed out in the claim.

In the drawings, Figure 1 is a vertical sectional view of a reclining-chair with its back in a reclining position, and showing the headrest adjusted in the required angle. Fig. 2 is a plan view of the fastener, showing the operative parts in detail. Fig. 3 is a sectional view,in perspective, of the head-rest and a part of the back of a reclining-chair, showing the relative position of the fastener with theheadrest thrown back. Fig. 4 is a plan view of the cross bar of a reclining-chair, showing the point of attachment of the devices connected with the bolt in relation to the supportingbraces of the head-rest.

A represents the case of the fastener, and a the rim.

B is the bolt, having the notches s s and the horizontal retainingshoulders b b in the end of the same. 4

O O are dogs attached to the pivot c on the case A, and having the engaging heads d d, levers c c, and stud g.

D is a link having slot Z to receive the end of bolt B and pivot q, uniting the same together.

E is a spring, and e a retaining-stud for the same on the rim a of the case.

F is a keeper-plate having shoulders f f, and slot at to receive the tongue 0 of the link D of bolt B; and 43 is a pivot passing transversely through the shoulders f f, which form the keeper, and secures tongue 0 therein. p p are studs, and h h are guides on case A.

G is a cross-bar attached to the sides of the chair. II is a supporting-brace for the headrest, attached to the sides of the chair by lugs m m. I represents the head-rest, and K the back of the chair.

In the construction of our invention we form a case, A, of the desired shape, and cast the .rim a, the guides h h and 70 k, studs 6 e, and

pivots c c, forming part of the case, at one operation. The guides h h and 7c 70 are con structed in aparallel relation lengthwise of the case, and a transverse opening of a sufficient width provided between them to admit the engaging heads d of thedogs C O.

The bolt B is made of equal length with the case A, and flaring, as shown at w 00, toward the end, and is provided with a suitable number of notches, s s, which have horizontal retaining-shoulders b b. The opposite end of the bolt B tapers to a small circumference, and has a flat extension or tongue suitable to enter the slot Z of the link D of the bolt, to which it is secured by the pivot q.

Upon opposite sides of the bolt B, and turning upon pivots c c, which are placed near to the bolt B to gain sufficient leverage, are the dogs 0 O. The dogs 0 O are slightly curved outwardly from the pivotal point to the engaging ends, and have formed upon their up per ends a'beaked engaging head, which passes through the opening between the guides h and k and engages with the shoulders I) of, the notches s in the bolt.

The engaging head d may be formed in a rectangular plane, as shown in dotted lines, when desired, as will be hereinafter explained.

Forming a continuation of the dogs 0 O, and extending from the pivot c outwardly and be low the case .A of the fastener, are the levers c c for operating the said dogs.

Upon the end and opposite to the engaging head (I of the dogs 0 is a stud, g, and in the same horizontal line and upon the rim a of the case A is formed the stud e,which receive the opposite ends of the spring E, and by means of said spring the heads d of the dogs 0 are kept in engagement with the shoulders Z) b of the notches s s of the bolt. The forward and backward movements of the dogs 0 O are limited by the guides 76 7c and studs 1) p, the latter being formed upon the case at the re quired distance from the said guides. A mortise is then out in the head-rest, extending in a vertical plane from its surface beneath and in line with the braces H of the head-rest, and the case A of the fastener introduced and secured thereto. The link D is then' made of sufficient length to receive in its slot Z the end of bolt 13, to which it is secured by a pivot, q, and extends to the slot n in the keeper-plate, when said keeper-plate is attached to the proper place on cross-bar O of the chair. Keeper-plate F is formed with a slot, n, between shoulders ff, which forms the keeper and receives the tongue 0 of the link D of the bolt. The adjustable head-rest I having been attached to the back of the chair K by means of the braces H H, which are pivoted to the lugs m m 011 each side of cross-bar G, the keeperplate F is then secured to the cross-bar G, its point of attachment being at a suitable distance in rear of a direct line drawn through the two opposite points of attachment of the head-rest to the chair. By this arrangement the movements of the head-rest in describing a curved plane in which its point of attachment will be the center, the distance from the end of the bolt B to its point of connection with the keeper-plate will consequently be increased or diminished, and the bolt thereby operate in connection with the dogs to retain the head-rest at the required angle.

In the operation of our fastener the forward adjustments of the head-rests and of the dogs in the notches of the bolt are entirely automatic. To recline the headrest, the levers 0 c are closed upon by the fingers, which releases the engagaging head of the dogs from the the case A. When it is desired to lock the head-rest in a reclined position, the engaging head (1 of the dog is made in a rectangular shape and the notches s s in a similar form, thereby preventing the automatic play of either bolt or dog.

The dogs may be disengaged from the notches in the bolt by inserting the levers in a transverse plane through the head-rest in rear, and the case of the fastener thereby engaging with the dogs and accomplishing the same result.

In attaching the head-rest to the back of the chair it is raised a sufficient distance from the top of the cross-bar to permit the entrance of the fingers to operate the levers in front and the free movement of the link of the bolt.

This fastener permits the head-rest to be adjusted in various positions independently of x the adjustments of the back, thereby affording increased comfort to the occupant of the chair. Having fully described our invention, what we now claim as new, and desire to secure by Letters Patent, is

In combination with a chair provided with a movable headrest pivoted near the ends of the top cross-bar of the back, and recessed as described, a securing device consisting of a bolt, one end of which is provided with notches, as set forth, and enters a recess in the headrest, and a link attached to its opposite end and to the top crossbar of the chair, and a spring-lever within said recess, which is provided with a catch to engage the ratchet-bar, as shown and specified.

J AS. H. ARMOUR. JULIUS SOHOTT. Vitn esses:

WV. ARMOUR, E. HAMLIN.

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