US1116388A - Lock for switch-stands. - Google Patents

Description

L. G. GOLEMAN.

LOOK FOR SWITCH STANDS.

APPLICATION P-ILED MAR.13, 1014.

Patented Nov. 10, 1914.

2 SHBETSSHBET 1.

L. G. COLEMAN.

LOCK FOB. SWITCH STANDS.

APPLIGATION FILED MAR.13,1914.

1,1 1 6,388, Patented Nov. 10, 19145 2 SHEETS-SHEET 2.

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LOCKETT G. COLEMAN, OF OTTAWA, ONTARIO, CANADA.

LOCK FOR SWITCH-swamps.

Specification of Letters Patent.

Patented Nov. 10, 1914.

Application filed March 13, 1914. Serial No. 824,512.

To all whom it may concern:

Be 1t known that I, Loonn'r'r Gwm (Tonn- MAN, a citizen of the United States, and

resident of the city of Ottawa. Province of :Ontario, Dominion of Canada, have invented certain new and useful Improvements in Locks for Switch-Stands, otwhich the following is the specification.

This invention relates to switch stands any position without the aid of the key, to

facilitate the removing of the working parts of the look from the incasing frame in which they are located, and other objects which will appear hereafter, and it consists essentially of the improved construction hereinafter described in detail in the accompanying specification and drawing.

In the drawings,Figure 1 1s a side elevation of the switch stand with the lever in closed or locked position. Fig. Qtis a front elevation of the same. Fig.3 is an enlarged side elevation with the lever partly raised. Fig. t is aplan view of part of the lever with the lock in position. Fig. 5 is a plan of the working parts of the look, as seen from the top. Fig. 6 is a sectional. elevation of the lock, on the line 2-2, of Fig, 1. Fig. 7 is a sectional elevation of the lock, on the line 3-3 of Fig. 4.

Like letters of reference refer to like parts in the several drawings.

Referring to the drawings, A. represents the switch stand of any well. known or usual construction, B the lever thereof. In accordance with the present invention the spring lock 0 is attached to the lever B, the tongue D being mounted on the switch stand and designed to engage with said lock.

. The form of spring lock which may be used for the purpose of the present invention is shown in detail in Figs. 4 to 7. Referrin to these figures, E represents the casing of suitable form designed to house or contain the working parts of the lock, such casing being formed integral with the lever B. The lever B is constructed with bifurcated arms 10 and 11, the casing E being located between such arms, and 1n a position intermediate of the ends of the lever. This casing E is constructed. 1n the following manner :The side members are formed by the arms 10 and 11 while the ends 14 and the top 13 are formed integral therewith, the casing being completed by the removable bottom plate 15 provided with a slot 21 therein designed to engage with the tongue D and upwardly extending flange members 16 formed at substantially right angles to the said bottom plate and adapted to engage with and be located between the arms 10 and 11 of the lever B, such flanges being provided with orifices 20 extending therethrough. A key hole 17 is provided.

in the top 13 of the casing while orifices 18 and 19 are provided in the arms '10 and 11 and designed to register with the orifices 20 in the flanges 1.6. The working parts of the lock C are now located in thehottom plate 15 which is provided with an upwardly extending guide plate 22 havinga slot 23 therethrough which acts as a guide for the sliding latch 24, the ends of said latch being connected by pins 25 and 26 which are supported in a guide 27, the rear ends of the pins being connected to sliding piece 28, the latch being normally spring pressed outwardly by means of spiral oom pression springs 29. and .30 which extend between the latch and the guide 97. The

the ends 36 and 37 of the said member being designed to engage with the sliding piece This bottom plate 15 with the several working parts of the lock mounted thereon is placed in position, the spindle 31 being located centrally in the upper enlarged end of the keyhole 17 the orifices 20 in the flanges 16 registering with the orifices 18 and 19 in the arms 10 and 11. The assembled lock is secured in position by the pins 10 engaging with the orifices 18, 19 and 20, the ends of the pins 10 being riveted or secured in any other suitable manner.

The tongue I) is formed with an aperture ll into which the sliding latch 24 is adapted to fit, the said ends of the latch being beveled so that it will lock automatically. The lock is operated by a key adapted to fit over the spindle 31 and engage with the flange and stop 34 whereby the connecting mem ber 32 is adapted to be drawn backward against the action of the springs 29 and 30 thereby withdrawing the sliding latch 24 from engagement with the tongue D.

If in the event of the lock going wrong or the key being lost or from any other cause, it is found desirable to remove the working parts of the lock, this is done by withdrawing the pins lO thereby allowing of the lever B being elevated and allowing any repairing of the lock being effected. By the use of such a casing it will be seen that should the lock go out of repair the switch stand can still be operated during the temporary removal of the said lock.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all mat-' ter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

lVhat I claim as my invention-is:

1. In a lock for switch stands, the combination with a switch stand and a lever pro vided with a bifurcated end, of a tongue on the stand, a casing provided with a key hole in the top side,'such casing being located intermediate of the ends of'the lever formed integral with the bifurcated parts thereof, a bottom plate designed to engage with said casing, a spring latch lock mounted on the said bottom plate, and means of securing the said plate in position, as and for the purpose specified.

2. In a lock for switch stands, the combination with a switch stand and a lever provided with a bifurcated end, of a tongue on the stand, a casing provided with a key hole at the top side, such casing being located intermediate of the ends of the lever formed integral with the parts thereof, a bottom plate having flanges formed at substantially right angles thereto, said bottom plate being designed to engage with the said casing, the said flanges engaging with'the inner faces of the said bifurcated parts, a spring latch lock mounted on the said bottom plate, and means of seorifices in. the said casing, a spring latch.

lock mounted on the said bottom plate, and means of securing the said plate in position consisting of pins adapted to engage with the orifices in the said lever and the orifices in the said flanges, substantially as"'described.

4. In a lock for switch stands, the combination with a switch stand, of a lever provided with a bifurcated end, a tongue on the stand, a casing provided with a key hole in the top side, such casing being formed integral with the bifurcated parts, a bottom plate designed to engage with the said casing, a spring latch lock mounted on the said bottom plate, suchlock consisting of an upwardly extending guide plate formed at substantially right angles to the said bottom plate, and provided with a slot, a sliding latch provided with pins, a sliding piece,

springs surrounding said pins and forcing the latch outwardly, a key spindle, a connecting member on the key spindle adapted to engage the sliding piece, substantially as described. a,

In witness whereof I have hereunto set?! my hand in the presence of two witnesses. LOCKETT G. COLEMAN.

Witnesses:

P. M. GARROW, B. A. LEAMY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Washington, D. G.

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