US1144587A - Latch. - Google Patents

Description

P. CASEY.

LATCH.

APPLICATION FILED FEB. 12. 1915.

1,144,587. Patented June 29, 1915.

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' THE NORRIS PETERS co. PHOTOLITHOH WASHINGTON. D.

IJ'NHE rArnIoK cAsnY, or RICHMOND, ONTARIO, CANADA.

LATCH.

Specification of Letters Patent.

Patented June as, 1915.

Application filed February 12, 1915. Serial No. 7,713.

To all whom it may concern Be it known that I, PATRICK CASEY, a subject of the King of Great Britain, and resident of Richmond, Province of Ontario, Dominion of Canada, have invented certain. new and useful- Improvements in Latches, of which thefollowing is the specification.

This invention relatestolatches designed to be utilizedon doors. and the like, and the objects of the invention are to render the latch adjustable and adapted to fit any thickness of door within working limits, to permit of the latch being used with hinged, sliding. and generally with any type of door, to enablethedatch being held in an open position so that closing of the same can only be effected by. an operator, to simplify and reduce the number of working parts, to cheapen the cost of production and generally to adapt the several parts to better perform the functions reouired of them, and it consists essentially' of the improved construction particularly described and set forth in the following specification and accompanying drawings forming part of the same.

I In the drawings; Figure 1 is a perspective view 'of the front of a door andthe jamb post, broken away, having the improved latch attached thereto. Fig. 2 is a perspective view of the back of a door and ja mb post, broken away, having the improved latch fixed thereon. Fig. 3 is a perspective view of the latch handle and stem showing the spiral spring mounted thereon. Fig. 1 is an elevation of the back of the latch. Fig. 5 is a sectional elevation of the door broken away, and the improvedlatch mounted thereon.

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

Referring to the drawings, A represents a door, B the jamb post and C the improved latch mounted on the said door,

such door and ja-Inbpost being of any usual and convenient construction and not forming part of the present invention, except in so far that the improved latch is mounted thereon. it is deemed unnecessary to further enlarge on the same.

The latch C comprises the locking bolt 1 which is provided at one end with a transversely extending projection 2 formed integral therewith and near the opposite end with an outwardly extending boss having a concentric orifice & extending therethrough, such boss being provided on its upper side with a threaded orifice extending therethrough with which the set screw 5 is designed to make threaded engagement. This locking bolt is also provided with a U-shaped member 6 extending outwardly from the outer face thereof, the end of one of the parallel arms of such U-shaped member being formed integral with the latch bolt, the end of the other parallel arm being concentrically located in the orifice 4; of the boss 3, such Ushaped member being designed to lie in a horizontal planeat substantially right angles'to the outer face of the said locking bolt.

7 represents a washer or plate which is adapted to be secured to the inner face of the door A by means of wood screws or the like, such washer being provided with a concentrically located orifice 8 extending therethrough and being provided on its outer face with a pair of pins or stops 9 extending outwardly therefrom and at substantially, right angles thereto, the object of which will be made clear hereafter.

The handle 10 is provided with a hollow stem 11, extending therefrom and formed integral therewith on which the spiral spring 12 is mounted, the end of the said stem remote from the handle being provided with curved recesses 13, one of which is adapted to engage the bottom arm of the U-shaped member 6 thereby facilitating in iralnsmitting rotary motion to the locking In the embodiment illustrated a washer 14 is provided which is adapted to be mounted on the outer face of the door A and to be secured thereto by means of wood screws or the like, such washer having a concentrically located orifice 17 extending therethrough and being further provided with aradially extending and outwardly curved arm 15 formed integral therewith, the outer end of such arm having an orifice 16 therethrough.

The lock plate 18 is substantially angle shaped in cross section and is adapted to be secured to the jamb post B by means of wood screws or the like, such lock plate being provided with an orifice 19 extending therethrough and with which the transverse member 2 of the bolt 1 is designed to engage as will be explained hereafter.

The device is assembled in the following manner: An orifice is drilled through the door located at the place where it is desiredto attach the latch, the washers 14 and 7 being secured to the front and back faces of the door respectively by means 01 wood screws or the like and in such a manner that the orifice 17 and the orifice 8 register with the orifice in the said door. The stem 11 is now inserted into the orifice 17, the orifice in the said door and the orifice 8 with which it is designed to rotatably engage, the spring 12 bein located between the inner face of the handle 10 and the outer face of the washer 1 1. The bolt member is now attached to the stem 11 in the following manner: The parallel arm of the U-shaped member 6, the end of which is concentrically located in the orifice .4, engages with the outer end ofthe hollowstem 11, thecurved recesses 13being designed to engageiwith the transverse or connecting arm of the said U-shaped member .6 in which position it will be quite clearthat the stem 11 passes through the orifice 4; in which it is frictionally. retained by means of tightening theset screw 5 in the boss 3.

In the operation of the device itwill be seen that the spring 12 exerts a force on the inner face of the handle 10 which is adapted to hold the locking bolt 1 in an open position without the liability of the said bolt falling under the action of gravity into a horizontal position.

111 1 the locking bolt is in engagement with the orifice 19 of the locking plate 18, it shouldbe noticedthat thehanldle 10 takes up a substantially horizontal position in which it is adapted to be secured by means of a padlock 20 which is designed to engage with the orifice 16 and with the said handle, thereby securely locking the handle in a fixed position and preventing the locking bolt 1 from being operated.

It will be quite clear that by the use of a transverse extending projection 2 fixed to the outer end of the locking bolt 1 that such a, locking bolt may be applied with equally good results to a sliding door as to ahinged door.

The function of the projectingpins 9 is to prevent the locking bolt 1 from being r0 tated too far when, disengaging the latch from the lockplate 1 9, thesa-id locking bolt 7 1 being designed to take up substantially horizontal position.

As many changes could be made 1n the above construction and many apparently widely diiierent embodiments of my in- .vention, Within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawingsbe interpreted as illustrative and not in a limiting sense.

That I claim as my invention is: 1. A latch of the class described comprisprojection formed integralwith one end of ing a lockingbolt, a transversely extending the locking bolt, a boss located near the op,-

p its nd QJ th l cki g. o ha in a concentric orifice t herethr ugh and being provided with a threaded forifice eiitending through the outer periphery thereof; a set screw designed to engage with. the said threaded orifice, atU-Shaped member. having the ,end of one of its parallel arms formed integral with thelocking bro-lt,the end of the r 3 other P a l am b in n e ri y located in the orifice of the said boss, a handle, a hollow stem formed integral withthe handle, designed tofengage onits outer pee riphery with the orifice in the said boss and on its inner periphery with the endof the concentrically located parallel arm or" the said U-member, as and for the purpose specified.

2,151 latch of the class described compris ing a locking bolt, a boss located near one end thereof having an orifice therethrough,

aIU-shaped member having the endgof one of its parallel arms integral" with the look.- ing bolt, the end of the other parallel arm being concentrically located. in the orifice ofthe said boss, a handle, hollow stem in tegral. therewith adapted to engage the U- shaped member and boss, such stern having curved recesses in the freeendthereof, oile of which is adapted, to engage and interlock with, the concentricv arm of the .U-shaped member, substantially as described? In witness whereofi l, have hereunto set my h nd n. t presenee f w itn se ATRICK AS Y? Witne s 7 J MES M HE L, WM- A.- WYMAIF- Copies of this patent may be obtained f pr five cents each, by addressing the Commissionerofiatents,

Washington, D. 0'. i

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