US1192033A - Sliding-door mechanism. - Google Patents

Description

T. M. BEARDON.

SUDING DOOR MECHANISM.

ARPLICATIONHLED JULYH, 1914.

Patelited July 25, 1916.

INVENTOR ATT RIVEY m: NORRIS mzrsns m7 Moro-Luau .wsmucmm n. c.

run STATES, PATENT THOMAS M. BEARDON, OF GODLEY, TEXAS, ASSIGNOR OF ONE-HALF TO FRANK GIBBS,

0F GODLEY, TEXAS.

SLIDING-DOOR MECHANISM.

Specification of Letters Patent.

Application filed July 11, 1914. Serial No. 850,334.

To all whom it .Illdf/COILCGTH Be it known that I, THOMAS BEARDON, a citizen of the United States, residing at Godley, in the county of Johnson and State of Texas, have invented certain new and useful Improvements in Sliding-Door Mechanisms, of which the following is a specification.

My invention relates to a new and useful sliding door mechanism, and its object is to provide a pedally operated mechanism whereby a sliding door may be thrown open and again closed without necessitating the use of ones hand, a single slight movement of the foot serving to actuate both the opening and closing of the door.

A further object is to provide a device of the character described that will be strong, durable, simple and efficient and comparatively easy to construct and also one that will not be likely to get out of working order.

With these and various other objects in view, my invention has relation to certain novel features of the construction and.use, an example of which is described in the following specification and is illustrated in the accompanying drawing, wherein:

Figure l is a view showing in side elevation a sliding door equipped with my novel actuating mechanism, the door being shown in its closed position. Fig. 2 is a horizontal section taken on aa of Fig. 1. Fig. 3 is a vertical section taken on b b of Fig. 1. Fig. l is a detail vertical section taken on c-0 of Fig. 1 showing how the door at its upper edge is guided by rollers engaging a track. F ig. 5 is a section on (Z(Z of Fig. 1 showing the rollers which guide the lower edge of the door along a track. Fig. 6 is a detail sectional fragmentary view of the latch mechanism of my door.

leferring now more particularly to the drawing, wherein like reference characters designate similar parts in all the figures, the numeral 1 denotes a sliding door fitting when in its closed position in a doorway formed by a front jamb 2, a rear jamb 3 and a lintel 4, the jamb 3 being vertically slotted as indicated at 4f to permit sliding displacement of the door.

In the upper edge of the door a pair of rollers 5 are recessed to engage a track 6, and another pair of rollers 5 are recessed in the lower edge of the door to engage a track 7, the engagement of said rollers with the correlated tracks serving to guide the door in ts sliding motion to or from its closed position. The lower track 7 will preferably be extended between two sills 8 in crossing the doorway. (See Fig. 5).

In the front edge of the door there is formed a rectangular recess 9 in which there is mounted a latch 10 of bellcrank shape, the upper end of which latch terminates in a semi-spherical head, while the lower arm is hooked at its extremity to engage a latch bar 11 mounted within a recess 12 in the front jamb 2. Just above the recess 12, the jamb 2 is formed with another recess 13, receiving the semi-spherical head 14 of a square bolt 15, projecting horizontally through the jamb into'the interior of the correlated wall, and carrying within the wall a coiled spring 16 hearing at one end against the jamb and at the other against the collar 17 fast upon the bolt. The effect of said spring is to normally maintain the bolt in a position in which the head 1-1 of said bolt is retained within the recess 13 as is shown in Fig. 6. With the collar 17 there is pivotally connected the upper end of a normally vertical arm 18 which projects rigidly from a horizontal rock-shaft 19 passing transversely through the wall just above the floor and formed at each side of the wall with foot pedals 20 projecting slightly toward the doorway. It is preferred to journal the end portions of the rock-shaft 19 in small brackets 22 eXteriorly secured to the wall, which will hold the rock-shaft to a constant axis of rotation.

In order that the door after reaching its open position may be automatically returned to its closed position, a J-shaped leaf spring 23 is mounted upon a stud 24 to which the rear edge of the door comes adjacent to its open position. The force with which the door is thrown open will be spent in distorting the spring 23 when the door comes into contact with said spring and the consequent reaction of the spring will serve to throw the door back to its closed position. When desired, the door may be maintained open by the use of a common lock 25 which is mounted upon the rear door j amb, the bolt of said lock being adapted to engage in an ordinary socket 26 mounted upon the door adjacent to its front edge. Preferably the lock 25 will be of the ordinary key actuated type.

A sliding door equipped with the above described mechanism is superior to the ordinary slidlng door since it may be operated with much less effort and will not become the same and rocking the shaft 19 so as to v displace the upper extremity of the arm 18 toward the doorway putting the spring 16 under compression and bringing the head 1& of the bolt 15 into sudden contact with the upper arm of the bell crank 10. The resulting angular displacement of the bell crank will free 1ts hooked lower arm from the latch bar 11, and the force of impact of the head 14 with the bell crank will" throw the door into its open position, in which, as pre- 1 viously specified it will contact with the spring 23.

The invention is presented as including all such modifications and changes as properly come within the scope of the following claim.

What I claim is: In a device of the character described, the

combinationwith a wall formed with a doorway, of a sliding door entering the doorway in its closed position, and formed with a recess in its front edge, a bell crank pivoted in said recess having an upper arm formed with a convex head and a hooked lower arm,

a latch bar carried by the front door jamb and engaged by the latch member in the closed position of the door, a sliding bolt horizontally mounted in the door jamb perpendicular to the door, its head being opposite to the upper arm of said bell crank, a spring acting upon said bolt maintaining its head {spaced from the bell-crank, and a pedally operated mechanism correlated with said bolt to subject the same to a sliding displacement whereby the bell-crank is rocked disengaging it from the latch bar, and the door is thrown open through force of impact of said bolt with the convex head of the latch member.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS M. BEARDON.

V Witnesses V. A. GRAY, W, M. BEAVERS.

Copies of this patent may be obtained for five cents each, by addressing. the (lommissioner'of Patents,

Washington, .D. G.

Images