US777847A - Barber's chair. - Google Patents

Description

PATENTED DBC. 20, 1904, F. DE FONTES.

BARBERS CHAIR.

APPLIOATION FILED MAY 1s, 1904. No MODEL 2 SHEETS-SHEET l4 Witneoowo If/ I h1 02,

No. 777,847. PATENTBD DEG. 20, 1904. P. DE FONTES.

BARBERS CHAIR.

APPLIOATION FILED 'MAY 1s, 1904. l No MODEL. z sHBETs-sHBBT 2.

' illllllllillllllllllll UNITED STATES Patented December 20, 1904.

FRANCIS DE FONTES, OF BALTIMORE, MARYLAND.

BARBERS CHAIR.

SPECIFICATION forming part of Letters Patent N o. 777,847, dated December 20, 1904. Application filed May 16,1904. Serial No. 208,066.

To ctZZ whom it may concern:

Be it known that I, FRANCIS DE FoNTEs, a citizen of the United States, residing at Baltimore, State of Maryland, have invented certain new and useful Improvements in Barbers Chairs, of which the following is a specification.

This invention relates to improvements in barbers chairs, and has for its object to provide a simple construction whereby the back and foot-rest may be adjusted simultaneously and held in the adjusted position and whereby the chair may be revolved or turned in a horizontal plane and locked in any position desired.

The invention consists in the novel construction, combination, and arrangement of parts hereinafter described, and more particularly pointed out in the appended claims, reference being had to the accompanying drawings, in which- Figure l illustrates a side elevation of a chair provided with my improved construction. Fig. 2 illustrates a sectional plan view of the same on the line 2 2 of Fig. l. Fig. 3 illustrates a sectional elevation of the mechanism for locking the back and foot-rest in the adjusted position. Fig. 4 illustrates a plan view of the same. Fig. 5 illustrates a sectional elevation of the horizontal adjustment-locking mechanism, the section being taken on the line 5 5 of Fig. 4. Fig. 6 illustrates a side elevation of the same looking in the direction of the dart on the line 6 6 of Fig. 4. Fig. 7 illustrates a detail of the shaftlocking device, and Fig. 8 illustrates a front elevation of the device for locking the back and foot-rest in their adjusted positions.

In the drawings, A designates a base of any suitable construction and which is provided at its upper end with a stationary circular rack a for a purpose to be presently described.

The chair A is provided with the usual side arms, the pivoted back A2, and pivoted footrest A3. The back A2 is pivoted at its lower end a2 between the short rear standards a3, and the eXtreme lower end of said back is provided with two downwardly and outwardly curved brackets ai, which latter are bifurcated at their lower ends and take over the outer projecting ends Z) of horizontal rods Z9. In

the present instance two of these horizontal rods Z are provided, and they extend from said curved brackets af through vertical slots Z2 in the rear wall of the seat-box and toward the foot-rest A3. The forward end of these rods curve downwardly and project through a slot Z3 in the bottom Z* of said seat-box, and the outer end of each of said rods is pivotally connected to a bracket c on the rear side of the said foot-rest A2. Each of these rods is provided with a laterally-projecting web c' at that point where the ends curve down from the horizontal portion merely for the purpose of strengthening same at that point.

The foot-rest A3 comprises the verticallyextending side arms c2, which are pivotally connected at c3 to the front standards c'i ofthe arms. It will thus be seen that the pivoted back A2 and the pivoted foot-rest A3 are connected by means of the curved brackets and rods Z, and when the back is swung toward the rear by swinging on its pivot end a2 the foot-rest A3 will be simultaneously elevated.

A stationary bracket CZ is secured in any suitable manner to the bottom Z4 of the seatboX, and said brack-et has position at the edge of the slot b3 in said bottom. This bracket is provided at each side with a vertically-extending lug CZ and also has a central guideway (Z 2, which extends longitudinally between said vertical lugs. At the rear and on each side of the guideway the bracket is provided with vertically-projecting pins d3, and at the forward end the bracket is provided at opposite sides with a lug (Z2.

A pawl device e is provided at opposite sides with downwardly-projecting lugs e', which fit between the vertical lugscZ on the bracket Z and are pivoted thereto by a bolt e2. The forward end of this pawl is curved downwardly at e3 for a purpose to be presently described, while the rear end of said pawl curves upwardly and on its bottom surface is provided with down-projecting pins e4, which register with the vertical pins Z3 on the bracket beneath. A spiral spring f has its opposite ends dtting around said pins (Z3 and (Z2, and said springs serve to keep the forward end e3 of' the pawl pressed downward.

IOO

` rods U.

A rack-bar f extends horizontally beneath the pawl e and between the 'two rods Z, and said rack-bar-at its rear end is provided with two lateral arms f2, which extend in opposite directions and are pivotally secured to the The forward end of this bar f is provided on its top surface with a rack f3 and also has two horizontal side flanges f". This forward end of the rack-bar extends through the central guideway (Z2 of the stationary bracket and is free to move in a horizontal plane between the vertical lugs and beneath the pawl e when the latter is elevated. A setscrew g extends through each of the lugs (Zl on the forward end of the bracket CZ, and the inner end of said screws project over the side fianges f1 on the rack-bar and serve to keep the end of said bar down in the central guideway (Z2. It will therefore be seen that the horizontal movement of the rods 7) and rackbar f can only take place after the pawl c has been raised out of engagement with the rack. The mechanism for operating the pawl will now be described.

A horizontal rock-shaft Zt extends across the seat-box in a direction at right angles to the rods Z and over the rear end of the pawl e. This shaft extends throughone of the sides of the seat-box and is provided at its outer end with an operating-arm ZL.

A cam is secured on the shaft /1/ and has position immediately above the pawl e, and whenthe shaft is rocked so that the cam will be moved downwardly it will contact with the pawl and depress the rear end and elevate the forward end e and disengage the latter from the rack f 3 and permit the rack-barf and rods Z1' to be moved in a horizontal plane, so as to adjust the back and foot-rest. When the back and foot-rest have been properly adjusted, the shaft is rocked back to its normal position and the pawl will again engage the rack and hold the parts in the adjusted position.

The mechanism thus far described relates particularly to the adjustment of the back and foot-rest and witlfthe exception of the rockshaft ZL and circular rack a' has no part in the horizontal or revoluble movement of the chair. The mechanism therefore now to be described relates particularly to the horizontal movement of the chair with respect to the base.

The base A is provided at its upper end with a head Z, which latter has a plurality of lateral arms t", which are best seen in broken lines in Fig. 4, and these arms extend in a horizontal direction and support the chairbottom Z* above the circular rack c. The chairbottom Z`L is provided at one side with a slot y', which latter has position beneath the roekshaft L. A bracket j" is supported on the outer end of one of the arms c", and said bracket extends vertically through the slot in the bottom Zj and pivotally supports a cam-lever f2, the `upper end of which is provided with a cam-surface y, which projects laterally and over the rock-shaft Zt. The ,lower end of the cam-lever 7'2 passes through a vertical slot in the outer end of a horizontally-movable bolt Ze. This bolt is supported in two lugs Zt, which project from the arm f/, and a spiral spring' 712 surrounds said bolt and servcsto keep the inner end thereof in engagement with the circular rack c' and keep the chair normally locked against horizontal movement.

A cam Z is provided on the horizontal shaft Zt, and said cam has position with respect to the cam-lever f2, whereby when the shaft is rocked so as to throw the cam forward it will contact with the cam-surface fon said lever and move the upper end of said cam-lever inwardly and the lower end of said lever outwardly, thereby withdrawing the bolt from engagement with the rack a and permitting the chair to be revolved in a horizontal plane. A lug Z' is provided on the cam Z and projects laterally therefrom, and said lug has a sweeping movement when the shaft Zt is rocked.

A plate Z2 is secured to the side of the seatbox and carries a flat leaf-spring Z3, which latter has position immediately above and in the path of the lug Z', and as the latter is turned in a vertical plane the lug contacts with the spring-plate Z:i and bows the latter in order to pass. This construction enables the shaft Zt toy be held in either of the two operated positionsthat is, so as toihold the pawl device e out of engagement with the rack f3, as in Fig.

v3, or to hold the cam-lever f2 and bolt 7c in the withdrawn position from the circular rack a.

When the lug Z/ on the cam Z has the vertical position and in contact with the springplate Z2, the rock-shaft will be held in the inoperative position.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a base, of a seat mounted on said base; a back pivoted with respect to said seat; a foot-rest also pivoted with respect to said seat; lever mechanism extending horizontally below the seat; a rack-bar pivoted at its rear end to said lever mechanism and extending toward the foot-rest; a guideway for the forward end of said rackbar; a pawl for engaging the rack-bar whereby to hold the lever mechanism stationary; means for pivotally connecting the back to one end of said lever mechanism, means for pivotally connectingI the other end of said lever mechanism to said foot-rest; a shaft extending above said rack-bar, and a cam on said shaft for engaging the pawl.

2. The combination with a base, of a seat mounted on said base; a back pivoted with respect to said seat; a foot-rest also pivoted with respect to said seat; a pair of levers extending horizontally beneath said seat; a bar extending in a direction parallel with said levers and between the latter and pivoted at one end IOO to said levers and at its free end having a rack; a pawl pivotally mounted between said levers and arranged to 'engage said rack; a shaft; a cam on said shaft for operating said pawl; brackets pivotally connecting the back to one end of said levers and means for pivotally connecting the other ends of said levers to said foot-rest.

3. The combination with a base, of a seat I a circular rack rigidly l a horizontally-movable I mounted on said base; secured to said base;

pin beneath the seat and at the side of said rack; a pivoted vertical lever one end of which is connected to said pin; a cam 'for operating?,l

the other end of said lever, and means for op- I5 eratinp, said' earn.

In testimony whereoi1 I aFX my signature in presence of two witnesses.

FRANCIS DE FONTES. Witnesses:

CHARLES B. MANN, J r., FELIX. R. SULLIVAN.

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