US597278A

US597278A - fischer

Info

Publication number: US597278A
Authority: US
Publication date: 1898-01-11
Anticipated expiration: 1915-01-11

Description

2 sheets-sheen 1. C. W. FISCHER 8v A. J. ROLLBRT. BARBERS CHAIR.

No. 597,278. Patented Jan. 11, 1898.

(No Model.)

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(No Model.) 2 Sheets-Sheet 2.

C. W. FISCHER 8v A. J. ROLLERT. BARlBRS CHAIR.

No. 597,278. Patented Jan. 11, 1898. j 53 5s Illini;

y section taken on the line 2 2 of Fig. 1.

UNITED STATES PATENT Ottica.

CHARLES W. FISCHER AND ANTON J. ROLLERT, OF CHICAGO, ILLINOIS, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE 'I'l-IEODORE A. KOCIIS COMPANY, OF SAME PLACE.

eAReeas CHAIR.

SPECIFICATION forming part of Letters Patent No. 597,278, dated January 1 1, 1898. implication tiled July 7, 189B. Serial No. 598,310. (No modell.)

To @ZZ when?, it may concern,.-

Be it known that we, CHARLES W. FISCHER and ANTON J. ROLLERT, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Barbers Chairs; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable oth ers skilled in the art to which itappertains to make and use the same.

This invention relates to a novel construc tion in a barbers chair, the object being to provide a device of this kind that is capable of rotating about a central support and the back and foot piece of which can be swung to a reclining position, devices whereby the chair can be raised or lowered bodily, and devices for controlling the swinging ot' the back and seat.

The invention consists in the features of construction and combinations of parts hereinafter fully described and speciiically claimed.

In the accompanying drawings, illustratin g our invention, VFigure 1 is a vertical longitudinal section of a chair constructed in accordance with our invention and taken on the line 1 1 of Fig. 2. Fig. 2 is a vertical transverse Fig. 3 is a perspective view in detail of the boxpiece upon which the chair is supported and through which it is raised and lowered. Fig. LL is a side elevation of the socket that is situated within said box.

Referring now to said drawings, 1 indicates the base of the chair, which is provided with a central hub 2. Situated within said hub 2 is the box 3, (shown in detail in Fig. 3,) which is provided at its upper end with a ange e, that rests upon the upper end of the hub 2 and to which it is secured by means of suitable screws. (Shown in said Fig. l.) The said box 3 is cylindrical and open at both ends, while its lower end is contracted, as shown at 5, and interiorly screw-threaded. Situated Within the box 3 is the socket G, also cylindrical and fitting within the cylindrical portion of the box and provided with a depending screw-threaded extension to iit the interiorly-screw-threaded portion 5 of the box. It is by turning the said socket G within the box 3 that the chair is raised and lowered, obviously by reason of the screw-threaded connection between these parts, and to prevent the turning of these parts when not desired the said box 3 is contractible-that is to say, at one side it has an upright slot S-and the flange 4 is provided with a series of slots 9, which permit the contraction to a slight extent of said box. To cause the contraction of said box around the socket, we employ a screw 10, that has a screw threaded connection with a lug 11 on one side of the slot 8, while it passes freely through a lug 12 on the other side of said slot, and a shoulder on the screw lO abuts against the last-inentionedlug. ThescrewlOisprovided with a hand-wheel 13, by means of which it maj,7 be turned to force the lugs l1 and 12 together and thus jam the box 3 around the socket 6v to hold said parts immovable with 'relation to each other, or said screw 10 may be loosened to permit the rotation of the socketwithin the box.

The seat le of the chair carries a depending bracket 15, from the lower end of which extends a stein 1G, that is situated within the socket 6. This stem 16 can turn within the socket and has a Slight vertical movement therein to permit the Wedge 1'7 to operate the brake-ring 18 by the relative movement of these parts, as shown in United States Patent No. e64,5S8-that is to say, the brakering 18 is situated within a seat formed-on a iiange 19 at the upper end of the socket 6 and has separate ends to receive the wedge 17, and when the bracket 15, together with the seat of the chair, is raised the brake-ring 1S is released, so that the stem 16 can turn within the socket; but, on the other hand, when the said parts are lowered the wedge 17 engages the ends of the brake-ring and expands the latter, which forms a brake between the stem and socket. As before referred to, the stem 16 has a swivel connection with the socket 6, and thisV is secured by a pivot-pin 20, that passes through the stem 16 and rests upon an adjusting-pin 21, having a screw-threaded connection with the extension 7 of the socket. This adjusting-pin, it will be noted, can be moved up Vand, down IOO by reason of its 'screw-threaded connection and secured in any desired position by a jamnut 22 at its lower end, which abuts against the lower end of the extension 7. The pivotal supporting-point between these parts is furnished by a cam or eccentric 23, rigidly secured to a rockshaft 24, hung in bearings 25 on the lower face of the seat 14 and passing through the bracket 15. This rock-shaft 24 carries a handle 26, by means of which it may be operated, and the shaft of the cam 23 is such that when the handle 26 stands in an upright position the seat will be lowered to permit the wedge 17 to expand the brake ring 18 and hold the parts rigidly together; but when the handle 26 is thrown to one limit of its movement-say, for instance, to the left'in Fig. l-the cam 23 presses upon the pivot-pin 2O and lifts the bracket and stem slightly to release the brake-rin g, whereupon the chair can be turned horizontally upon its pivot. This is not part of our invention, as it is shown and claimed in the United States Patent No. 464,588, above referred to.

Ve will now describe the manner in which the chair can be raised and lowered bodily.

The flange 19 on the upper end of the socket 6 carries at its periphery a bevel-gear 27, and the rock-shaft 24 extends to one side of the bracket 15 to form a bearing for a crankshaft 28, that is also hung in a bearing 29 on the seat 14. This crank-shaft 28 carries a bevel gear-pinion 30, intermeshing with a bevelgear 27 of the socket. The end of the crankshaft 28 is squared to receive a crank 31, by means of which it may be turned, as shown in Fig. 2. Now it will be noted that when the boX 3 is tightened upon the socket 6 there can be no rotation between these parts, and therefore the screw-threaded connection between these parts will not act. In this case when the seat is turned upon'the base the pinion 30 simply runs over the bevel-gear 27. On the other hand, however, when it is desired to raise or lower the seat of the chair the screw 1() is first loosened to permit the rotation between socket 6 and boX 3, and then the handle 26 is thrown backwardly to lift the wedge 17 out of engagement with the brake-ring 18. Then by turning the crankshaft 28 and through the intermediacy of the pinion 30 and gear 27 the socket-piece 6 is turned within the box 3, and obviously, by reason of the screwethreaded connection bctween these parts, the socket 6 is either raised or lowered within the boX, or, in other words, with relation to the base 1, to change the height of the seat 14. After the desired position is attained the box is tightened upon the socket 6 and the upper parts of the chair can be operated in the usual manner.

We have also provided an improvement in the devices for controlling the inclination of the foot-piece 31 and back-piece 32, both of which are pivoted to seat 14 and to the arms 33. This mechanism consists of a rack-bar 34, piv-r oted to the foot-piece 31 and passing through the bracket 15, while extending across said bracket 15 and in position to be engaged by the upwardly-facing teeth of rack-bar 34 is a stop 35. The said rack-bar is normally held in engagement with said stop 35 by a spring 36, secured to the seat, and two fingers 37, carried by the cam 23, engage the said rackbar 34, so that when the handle 26 is thrown to the right in Fig. 1 the fingers 37 will draw the rack-bar out of engagement with the stop 35 and permit the swinging of the foot-piece and connected parts, it being noted that there is a sliding connection between the fingers 37 and rack-bar 34.

IVe claim as our invention- 1. In a chair, the combination with a base having a vertically-adjustable socket, of an p adjusting-pin vertically adjustable in said socket, and a chair-supporting pivot supported on said adjusting-pin, substantially as described.

2. In a chair, the combination with a base having a vertically-adjustable socket, of a screw-threaded adjusting-pin in asaid socket and vertically adjustable therein, and a chairsupporting pivot supported on said adjustingpin, substantially as described.

3. The combination with a base, of a vertically-adjustable socket, a chair-pivot carried by said socket, and means for vertically adjusting said pivot independently of said socket, the chair-seat being free to rotate independently of the pivot-adj ustin g mechanism, substantially as described.

4. In a chair, the combination with a base having a socket provided with an interiorlythreaded extension, of an adjusting pin threaded for a portion of its length and fitted in said threaded extension, a locknut tapped over the lower end of said pin, and a pivotpin disposed in, the socket and resting on the adjusting-pin, said pivot-pin supporting the chair-seat, substantially as described.

In testimony whereof we affix our signatures in presence of twowitnesses.

CHARLES W. FISCHER. ANTON J. ROLLERT.

Vitnesses:

GEO. D. CHIsHoLM, P. A. SELIG.

IOO

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