US1020978A - Lock. - Google Patents

Description

E. HAHN.

LOCK.

APPLIUATION FILED 13130.12, 1911.

1,020,978. Patented Mar. 26, 1912.

EIVIIL HAHN, F NEW YORK, N. Y.

LOCK.

Specication of Letters Patent.

Patented Mar. 26, 1912.

Application filed December 12, 1911. Serial No. 665,212.

To all whom it may concern.' v

Be it known that I, EMIL HAHN, a subject of the Emperor of Austria-Hungary, residing in New York, borough of ,the Bronx, State of New York, have invented certain new and useful Improvements in Locks, of vwhich the following is a specification.

The object! of this invention is to provide a simple and effective lock in lwhich the bolt may be operated-from the outside of thedoor by means o a key, and from the` inside without the use of any key.

For this purpose the invent-ion comprises a bolt-casing suitably secured to the door at the inside of the same, a' bolt adapted to slide in said casing and engage a keeper on the door-jamb, said bolt having a laterallyprojecting handle, and a guide-pin and operating-pln` projectino laterally therefrom through a slot'in thebolt-casing, a vertical operating-rod piyoted at its upper end and extending at its lower end between the handle and the operating-pin, and means for rotating or swinging the said rod from the outside of the door.

In the accompanying drawing, Figure 1 is an elevation of the inside of a door and its jambs, in rt, showing my lock applied to the door, ig.\2 is a horizontal section on line 2-2 Fig. 1,1Fig. 3 is a vertical section on an enlarged scale. through the lock and adjacent part of the door,l on line 3 3 Fig. 1, and F1 Il is a similarsection show- 85 ing wmodie construction of the lock, as adapted to a. Yale or other barrel lock.

Similar letters ofveerenoe indicate correspondio parts in the diterent gures.

o the o or 9 ,is screwed or otherwise secured a bolt-casing or housing 10, having a lono'itudinal slot 11 in its outer wall. Within t e housing 10 is slidably guided a bolt 12, the outer end of which is adapted when the bolt is thrown to engage a keeper 13 secured to the jamb 14, 'and thereby bolt the door. lFromI the bolt a handle 1d projects laterally be ond the casino' 410, thus permit-tingv the olt to be moved back and forth by hand at the insideof the door. Also from the bolt rojects laterally and sub- 'stantially paralel with the handle, but at a point nearer the nose 'of the holt, an operating-pin 16. The pin 16 projects throughl the slot 11 to the outside of the casino' 10, and by abutment with the rear and o? the slot. serves to limit the rear movement of the bolt, and by abutment with the forward end of the slot when the bolt is thrown serves to limit its forward motion. The bolt is operated by means of a key havin a vertical operating-rod 17, pivoted at its upper end to a link 18, which is in turn pivoted to the shank 19 of the key, having at its outer end a handle 20.

The operating-rod 17, link 18 and shank 1S) may be of plain round rod, or of any section desired, which is adapted to be entcrcd and withdrawn through an ordinary keyhole 2l of the door. Said keyhole is located above the bolt-casing and bolt, and the position of the key-hole and the spacing apart of the handle and operating pin are preferably so arranged that the operatingrod normally hangs between the forward position of the handle 15 and the rcarmost position of the pin 16, as shown4 in Fig. 1. Thus when the rod is inserted for locking the door, it will'by gravit-y assume a posisume a position in front of the handle 15. Y

The door is opened by inserting the key, composed of the parts 17, 18, 19, in the keyhole, whereupon the rod 17 falls in position to engage the handle 15. The key is then turnedby means of its'handle 20, whereby they rod is swung in backward direction aga-inst the handle and the bolt is drawn. For locking the door, the ke is inserted in like manner, but turned in the opposite direction, whereupon it engages the`pin 16 and moves the bolt forward.

The link 18 may be omitted, but it is preferably employed inasmuch as it adapts the key to doors ofditferent thicknesses. In doors of ordinary or less than usual thiclb vness the link 18 falls in line with the rod 17, as shown in Fig. 3, .but in thick doors theA link 18 remains in line with the keyshank in the key-hole, and the rod alone falls. The key is easily inserted in and withdrawn from the door by reason of its pivots which permit it to bend for locking, and to assume lua under shocks to the door. ilse improving the security ofi engaaeinent of the rod with the handle, the handle i5 is inwardly tapered, as shown in Fig. 3, so that onder the pressure of engagement therewith the rod 17 is retained in inward position against Ythe easing-edge 22 and prevented by the handle from dying outwardly under shocks to the door.

in Fig. 4- the housing 23 oi' the Yale other barrel lock is secured to the door in any suitable manner, to the barrel 24; of the look is secured at ite inner end a head .in the saine relative position to the bolt` and its handle and operating-pin be fore described. The operating rod 26 is pivoted t0 the head 25 inwardly from the outer edge of the easing, before described with reference to the operatingrod i?, whereby the guiding and reliable engazgfe` nient of the rod are secured. The key 27 of the Yale look is inserted in the usual mann ner when it is desired to bolt or nnbolt 'the door, and thereby the barrel inayvbe turned in either direction, so that the rod 26 is swung either against the handle or against the operating-pimms the case may be, and the bolt Withdrawn, or thrown, as desired.

For preventing the bolt from being shaken out of position, and for securing the bolt against unintended movement, airistion spring 28 is employed, composed of two parte, longitudinally arranged at the upper roedere and lower portions of the bolt l2, and between the saaie and the housing` l0, and adapted to tiietionally engage the housing,

as shown in Eig. :2, thereby retaining the bolt with the desired degree of security in the position in which it is moved, but not preventing the easy movement of the bolt by the operating-rod oi the key.

elaini:

A lock, comprising a bolt-housing, a keeper, a bolt slidable in the houslng and adapted to engage the keeper, said housing -15 having a longitudinal. slot, an operatingpin projecting laterally from the bolt through Said slot to the outside oic the housing, an inwardly-taperinghandle on said bolt, extending laterally therefrom at the saine side with the operating-pin, beyond the housing?, an. operating-rod, means for supporting the saine Aat a` point above the Jon. MURTAGH, L. .tl/iUnrHY.

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