US9070A - francis garachon - Google Patents

Description

P. GARAGHON. LOOK.

No. 9,070. Patented June 29, 1852.

UNITED STATES PATENT onF1oE.;

FRANCIS GARACHON, OF NEW YORK, N. Y.

LOCK.

Specification of Letters Patent No. 9,070, dated June 29, 1852.

T 0 all whom it may concern:

Be it known that I, FRANCIS GARACHON, of the city, county, and State of New York, have invented a new and useful Improvement in Locks; and I do hereby declare the following to be a full and clear description of the same.

The nature of my invention consists in the arrangement of the look, a check lever, and its accessories for latching'and unlatching the bolt relatively to a check lever for locking the revolving plate, whereby the auxiliary key acts upon the former by being lifted endwise and upon the latter by its bit when revolving in the usual manner.

But to describe my invention more particularly, I will refer to the accompanying drawings forming a part of this schedule, the same letters of reference wherever they occur referring to the same parts.

Figure 1, is a view of the face of the lock, showing the two independent keyholes; Fig. 2, is a view of the face of the lock, having the cap plate removed, and showing the bolt thrown back, and by the dotted outline of the key in the tumbler, and direction of the arrow, the position for throwing the bolt. Fig. 3, is a front view of the same, showing the position of the bolt as thrown forward, and position of the key and tumbler for throwing it back. Fig. 4, is a representation of an inner cap plate secured over the tumbler, check lever, &c. Fig. 5, is a representation of the bolt. Fig. 6, is a representation of the edge of the bolt, showing the position of the check spring underneath it. Fig. 7, is a face view of the check spring. Fig. 8, is a view of the clasp for the end of the bolt to run in, having the cap removed so as to exhibit the position of the check spring under the bolt, and check spring lever for operating it. Fig. 9, is a sectional view of the front end of the clasp, showing the check spring lever, and key and wards of the check key, through the line a, m, Fig. 2. Figs. 10 and 11, are views of the upper and lower plates of the revolving tumbler, Fig. 11, showing the arrangement of the wards. Fig. 12, is a cut sectional view of the tumbler, through the line x m (of Fig. 11) with the stem of the revolving key. Fig. 13, is a' view of the bolt key.

Letter A, A, case of the lock.

B is the outer cap plate of the lock, and B, is the inner cap plate secured over the tumbler, &c., and through which are cut key holes for the bolt key and check key.

C, is the bolt. Thisbolt is made with two or more prongs as may be required. Through the face of it is cut an H shaped slot D, for the insertion of a port or stud E, on the main check F, for holding the bolt when either projected out or in, and which is held securely in position by the main spring G, resting on the back of it, and secured at the opposite end by a screw bolt to the plate of the lock. On the back end and lower side of the bolt, where it enters the clasp, is also a small check stud H, (see Fig. 6, and dotted outline in Fig. 5), and also a notch J, cut in the edge of it for the key to operate against, in throwing the bolt out or in.

Letter K, is the tumbler. This tumbler is made from two plates of metal, and between which the'wards L, for the bolt key are arranged, and secured to the lower plate K These wards are put together so as to form a figure 5, and by their position prevent the admission of a pick, or other in strument, except the proper key, to operate on the notch J, in the bolt for throwing it.

Letter M, is the stem of the tumbler, which is surrounded by a square box N; and P, P, P, are studs, and screw holes for securing the upper and lower plates of the tumbler together.

Letter R, is a small half circular notch, cut in theedge of the lower plate K of the tumbler, for the purpose of holding it, by means of the lever S, and spring S at the lower side of the tumbler, and attached to the plate or case A, when the revolving kev T, has exposed the keyhole of the tumbler for the admission of the key U. A

Letter V, is a small check pin inserted in the face of the plate K of the tumbler. (See- Figs. 11 and 12, and dotted outlines of it in Figs. 2 and 3 in the tumbler.) This pin when the tumbler is revolved (in the direction of the arrow in Fig. 2), by the bolt key, to project the bolt, is brought around so as to fall or spring into the notched end of the check lever W, and thereby prevent the bolt key'from being withdrawn from the lock till the check key Y, has been inserted to raise the back end of the check lever W, to allow the key and tumbler to rotate forward. This check lever is secured to the plate A, by a fulcrum W having its back end extending across the wards of the check key, and held down by means of a spring Z.

Letter a is the cap of the check key wards, and through which the check key Y, is inserted on the stem 6 In the front end of this cap plate a is a small slot and opening F, in which rests the back end of the check spring lever 9 This lever, (see Fig. 9), is secured by a fulcrum screw 72?, to the front end of the clasp k for the bolt, and has its back end bent in such a manner as to enter the small slot and opening F, in the cap a that the ward of the check key Y, may raise it, for the purpose of depressing the opposite end inserted in a hook or bracket of, on the lower side of the check spring 71 This spring is securedto the plate A, of the look, by means of screws, directly under the bolt, and is bent in such a manner, that its back end, resting in a groove in the clasp for the bolt, is always Dressing against its lower face, so that when the bolt is projected forward, thestud H, (see Fig. 6) enters the opening 79 in the back end of the spring, and thereby preventing the bolt from being thrown back except the check key is inserted to release it. Letters 1* r &c., are representations of screw holes, and studs, for bolting or screwing down the inner cap plate 13'', and outer plate B to the case A. r

The operation of thislock is that when it is desirous to lock it, is to insert first the key T, and on turning it, the small projection on its lower edge falls into a hole in the box N, of the tumbler (see Fig. 12) and thereby causes the tumbler to turn with it till the check lever S, falls into the half circular notch B, when it is stopped. The key T, is now withdrawn and the bolt key U, is inserted, and being turned in the direction of the arrow in Fig. 2, falls into the notch J, and lifting the check stud E, attached to the check F, from the check in the end of the slot D, projects the bolt forward, and at the same time locks the tumbler, so that it can not move back or forward, to withdraw the key, by means of the forked end of the check lever V, clasping the pin V (see Fig. 3) in the upper face of the plate K of the tumbler. In this posit-ion the check key Y, is inserted, and turned on the stem, first half way around, so that the ward can act on the back end of the lever W, to relieve the pin V, and allow the tumbler to move forward, so that the bolt key may be withdrawn, and at the same time allow th stud H, on the lower and back end of the bolt to enter the hole 9 in the check spr' n When this is done the bolt and chec keys are withdrawn, and the revolver key T is inserted, and turned, so as to conceal'the wards of the lock under the plate B, and is then withdrawn also, leaving only the opening around the stem'as the means of access to the interior of the lock. To return i the bolt, the key T, must again be inserted, and turned as before described to expose the keyhole, for the key U, which on the",

withdrawal of the key T, is introduced, andf turned in the direction of the arrow (in Fig. 3) till it falls into the notch J, to lift. the stud E, out of the check notch, inthe slot D, but in which position the bolt can not beshot back in consequence of the stud H, being in the hole 29 of the check spring n To release this, the check key Y, is in- A serted, and when turned half around on its stem, it releases the pin V, from the forkedend of the check lever W, and then by an upward or backward motion ,given'to the key Y, as if aboutto withdraw itfrom the lock, the upper end of the ward of the key is forced (see Fig. 9) through the opening in the plate (4 of the slot f against the bent end of the check spring lever 9 so as to lift it, and thereby depress the end of the check spring, so as to release-the stud H, and allow, (the check key being retained in that position all the while,) the bolt key to be turned so as to shoot the bolt back, when the bolt key and check key may be withdrawn.

Having now described my invention, I will proceed to state what I claim, and desire to secure by Letters Patent of the United States The arrangement of the lever 9 and its accessories for latching and unlatching the bolt relative to the lever W, for locking the revolving key plate, whereby the auxiliary key acts upon the former by being lifted endwise, and upon the latter by its bit, y when revolving in the usual manner, sub- 10 stantially as set forth.

F. GARAOHON. \Vitnessesf 1 CHARLES L. BARRE'I'I, WM. SINCLAIR.

Images