US464478A

US464478A - Thews

Info

Publication number: US464478A
Authority: US
Publication date: 1891-12-01
Anticipated expiration: 1908-12-01

Description

(No Model.) 3 Sheets-Sheet 1.

J. M. MATTHEWS.

No. 464,478. Patented Dec. 1,1891. I

I Fiyr.

' lllllll (No Model.) a Sheets-Sheet 3. v

J. M'. MATTHEWS.

- LATCH.

No. 464,478. Patented'Dec. 1, 1891.

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A 3- mm UNITED STATES PATENT OFFICE.

JAMES MATTHElV MATTHEWS, OF LONDON, ENGLAND.

LATCH.

SPECIFICATION forming part of Letters Patent No. 464,478, dated December 1, 1891. Application filed May 28,1890. SerialNo. 353,458. (No model.) Patented in England August 19, 1885, No. 9,820.

To all whom it may concern.-

Be it known that I, JAMES MATTHEW MAT- THEWS, a subject of the Queen of Great Britain and Ireland, of 85 Stonebridge Road, South Tottenham, London, in the county ofMiddlesex, England, have invented certain new and useful Improvements in Locks for Railway- Garriage and other Doors, (in respect whereof I have obtained Letters Patent in Great Britain, No. 9,820, bearing date August 19, 1885,) of which the following is a specification.

The objects of this invention are, first, to simplify the construction of locks for railwaycarriage and other doors, and, secondly, to enable such locks to be made of reduced thickness and size, so as to render them more suitable for use in the doors of private carriages and other road-vehicles.

In the accompanying drawings, Figure 1 is a side elevation of a lock constructed in accordance with the present improvements, the cover-plate having been removed. Fig. 2 is a corresponding front elevation. Fig. 3 is a front elevation of the striking-plate, Fig. at being a corresponding side elevation. Figs. 5 and 6 are respectively a side and an end elevation of the bolt. Fig. 7 is a vertical section showing in side elevation a stud which permits of the spring being readily withdrawn and replaced. Figs. 8 to 10 are respectively an under side View, a top view, and a side view, of the stud itself, Fig. 11 being a side view of the stud in a position at right angles to that represented in Fig. 10. Figs. 12 and 13 show a more compact form of lock. Fig. let illustrates a modification in which theimproved lock is manipulated from inside the carriage bya lever working in the usual manner through an opening in the garnish-rail. Fig. 15 represen ts, partly in section and partly in plan, the manner in which in the more compact form of lock the actuating-spring is coiled around the spindle of the handle, Figs. 16 to being detail views of the escutcheon and 'sprin g.

rives against an incline d on a suitable strik ing-plateD, Fig. 3, and is thereby forced in- The spindle of the handle passes through a square hole a in the bolt in the usual manner. The spring 0 is placed in the lock through an openingin the front plate B. This opening is closed by a stud E, whereby the spring is retained in position, Figs. 2 and 7 to 11. Two projections b b,which are exactly opposite one another, extend into the opening. The opposite sides of the stud are slotted ate eand its face is provided with a cross-slot c, the latter corresponding in width with the projections 17b. The opposite end of the stud to thatin which the slot 6 is cut may be provided with a pin or projection c for centering the spring 0. The stud and spring having been forced with the aid of a turn-screw or similar instrument through the opening in the front plate B, the stud is turned a quarter of a revolution, whereupon the notch c arrives opposite the proj ections b b, which, after the withdrawal of the 1 turn screw has permitted the sprin'gC to force outward the stud E, serve by contact with the bottom of the notch e to limit the outward movement of the stud and to prevent its rotation. WVhen it is desired to take out the spring it is merely necessary to press back the stud E until the notch e is free of the projections 12 b and then to turn the stud so as to bring the slots e e opposite the said projections, whereupon the spring 0 forces out the stud through the opening in the plate B.

Instead of the projections b b beingformed in the opening and the slots e e in the stud, the projections 19 b may be formed on the stud and the slotse ein the opening. In this case recesses are provided at the back of the opena helical spring surrounding the spindle of the handle, as hereinafter more particularly described with reference to Figs. to 20.

In Fig. 1% the bolt A is operated by a lever F, which is pivoted to the lock-plate at fand connected by a link F to the bolt A. The lever F projects through an opening in the garnish-rail, and is Worked from inside the carriage in the usual way.

According to the design illustrated in Fig. 15 the actuating-springO' is coiled round the spindle G of the handle II, the two parts be ing by preference inserted together, so that the spring may be removed by Withdrawing the handle. The end coils of'the springsituated near the bolt A, are bent, in the-manner represented in Fig. 20, so as to conform to the shape of the spindle G, whereby that end of the spring is rotated. The remainder of the spring is, however, free to partake of a rotative movement about the axis of the spindle, and the whole spring is capable of moving in alongitudinal direction. The end a of the spring 0 is turned outward and engages with one of the projections 70 on the back of the escutcheon K when the parts are in position, The projections 713 enter slots Z in a plate L, secured beneath the escutcheon to the door, each slot Z being large enough to receive one of the projections it, together with the tail 0 of the spring 0.

The parts are put together in the following manner: The escutcheon and the spring are applied to the spindle, one end of the spring engaging with the squared part of the spindle and the other end with one of the projections 7; 011 the escutcheon. The spindle is then placed in the lock, and the escutcheon is turned sufficiently to impart the required tension to the spring and to bring the projections 7t, together with the tail 0, opposite the notches Z, whereupon the spindle is thrust home and secured in position by the nut M.

Instead of the outer end of the spring C engaging With and beingheld by the escutchcon and the inner end of the spring engaging with the spindle, the outer end may be held by the spindle (in a similar manner to that already described, with special reference to Fig. and the inner end by contact with a pin projecting from the lock-case.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-- 1. In a lock for railway-carriage and other doors, the combination, with the bolt A, having a chamfered projecting part a, of the removable spring (J, engaging With the tail to of the bolt, the stud E, secured in the front plate B of the lock, and the striking-plate D, formed with an incline cl and a slot d, substantially as and for the purposes set forth.

2. In a lock for railway-carriage and other doors, the combination, with a helical actuating-spring C, of a removable sliding stud E, and a plate B, having a hole tocorrespond with the stud E, such stud being caused to engage with the plate by the reaction of the spring, substantially as and for the purposes herein set forth.

In a lock for railway-carriage and other doors, the combination, with a removable spring-retaining stud E, of the lock-plate I), having an opening corresponding with the stud, reciprocal fastenings on the stud and plate, being brought into position to engage with one another by the partial rotation of the stud, substantially as and for the purposes herein set forth.

4. In a lock for railway-carriage and other doors, the combination, with a spindle, such as G, of an escutcheon, such as K, in which the spindle turns, a plate L, secured to the door for holding the escutcheon, and the actuating-spring secured at one end to the spindle and at the other end to the escutcheon, substantially as and for the purposes set forth.

5. In a lock for railway-carriage and other doors, the combination, Wi th a handle mounted on a spindle, having portions of its surface flattened, of an actuating-spring having its end coils flattened to engage With the corresponding surface on the spindle, substantially as and for the purposes herein set forth.

J AMES MAT' IIE\V MATTIIE \VS.

Witnesses:

WM. Tnos. Mnusnnnn, PERCY S. llIAlTOCK.