US954427A - Bolt-and-latch lock. - Google Patents

Description

P. DURET.

BOLT AND LATCH LOCK.

APPLICATION HLBD APR 9. 1909.

954,427. Patented Apr. 12,1910.

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W@ www PIERRE DURET, OF MARSEILLE, JERAJATCE.V

BOLT-AND-LATCH LOCK.

Specification of Letters Patent.

Application filed April 9, 1909.

Patented Apr. 12, 1910.

Serial No. 488,938.

To all whom it may concern:

Be it known that l, Pinnen Donar, a cit-izen of the Republic ot France, and .resident of 53A, Rue des Minimes, Marseille, Bouchesdu-Rhne, France, have invented a VBolt-and- Latch Lock, of which the following is a specication.

This invention relates to improvements in bolts and latch locks, which may be used in connection with a series of tumblers similarly to the structure usually designated with the Brahmah.

An object of the invention is to provide a lock, wherein a latch is arranged slidably in horizontal direction and wherein a plurality oit bolts are simultaneously actuated in vertical direction.

Another object is to provide means :t'or returning the vertical bolts automatically in their releasing position.

Further objects will be more t'ully described in the following specification, and will be pointed out in and by the appended claims.

In the drawing', Figure l, is a front clevat'ion of the lock. Fig. 2, is an elevation of the lock with the cover removed. F ig. 3, is a vertical section. F ig. Lt, is an elevation oitl some details ot the lock. Fig. 5 is a horizontal section of the same. Fig. 5, is another' horizontal section with some modified details. Fig. G is an elevation of the lock with the cover removed, showing modifications of this construction.

Similar reference letters indicate similar parts throughout the drawing.

In Fig. l, the casing t is shown with a horizontal latch c and vertical bolts A guard pivotally mounted on the rivet z' is adapted to cover the keyhole ze. By reference to Fig. 2, it may be noted that the latch 0 is provided with a tail piece, onto which a handle is secured, extending to the opposite side of the casing. The latch c has a preterably rectangular recess in which a slide c is movably disposed. A plurality ot recesses in the slide c serve t'or receiving the pins It, which in cowaction with the key are adapted to impart reciprocatory motion to said slide. A spring cl fastened with one end to the slide and resting with the other end against t-he latch c, serves for maintaining the distance between the slide and the latch and for returning the same into starting position. A preferably horizontal recess p is provided `to the le't't.

in the slide c and a pin 0 is slidably secured in said recess. 'lhe pin 0 serves as a pivot point .t'or two members n, which in eoaction with a plurality ot similar members, actuate the bolts j. The members n serve as lazy tongs, increasing or decreasing` the distance between the bolts according to the position ot' the pin o with respect to the pivot g on which the lazy tong members are mounted. A spring (1,. secured with one end to the casing and with the other end cngaging the pin o serves -for maintaining the bolts in inoperative position. The locks ot doors usually are arranged so that the upper bolt necessarily must be longer than the lower bolt, and by this means the two bolts j' are kept in their releasing position7 the upper bolt t'orcing by gravity the pin o lVhen the key is inserted into the keyhole a', the slide is moved to the right by the rotation oi the key and the latch advances, the spring (l maintaining the distance between the latch and the slide, the further advance movements ot' the slide will actuate the bolts ln Fig. 5, the horizontal sectional view is shown, wherein the members 'n are arranged in a di'il'erent way from the construction shown by liig. 5. The lock is actuated in a way which is very well known to any expert skilled in the art by first inserting the key horizontally pushing the same toward the pins L and by a turning of the key within the key-hole.

In Fig. (i, spring Z is not secured to the latch e, but into the corner of the casing, supporting thereby the advancing movement of the key.

As indicated in Fig. 3 in dotted lines, a knob may be attached to the casing, which under co-action with the pin l1, serves lor advancing the slide c. The knob serves the purpose oit' opening or closing the lock from the inside ot' the room, a key only being then necessary 'For actuating the lock from the outside. The knob may be astened to a stud riveted in a plate underneath the slide which may be actuated by the pin t. The fastening oit the knob to the door does not form the subject matter of this invention and is well known to any expert in the art.

I claim- 1. In a lock the combination with a casing, a latch provided with a recess, a slide mov-ably secured in said recess, a plurality of vertical bolts and means in co-action with coaction With said pins7 and to displace l,10 a key for displacing said slide and actuatthereby said latch and bolts.

ing simultaneously said latch and said bolts. In testimony whereof I aIiX my signature 2. In a lock the combination With a oasin presence of tWo Witnesses. ing7 a latch provided With a recess, a slide PIERRE DURET movably secured in said recess, a plurality of Vertical bolts a plurality of pins movably Witnesses: secured in said slide7 and a key, said key I. GAUBERT, being adapted to actuate said slide under Y BoUssIER.

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