US96968A

US96968A - Improvement in hasp-locks

Info

Publication number: US96968A
Authority: US
Publication date: 1869-11-16
Anticipated expiration: 1886-11-16

Description

Uff f/f.

N. PETERS, PHOTOLLITMOGRAPHER, WASHINGTON. D. C.

CHARLES W. A. ROMER, OF NEWARK, NEW-JERSEY.

\ Letters Patent No. 96,968, dated November 16, 1869.

IMPROVEMENT IN HASPLOCKS.

The Schedule referred to in these Letters -Patent and making p art of the same.

To all tvhom Iit may concern Be it known vthat I, CHARLES W. A. RoMEn, of

Newark, in the county of Essex, and State of New .latch is thrown open and the bolt pushed back.

Similar let-ters of reference indicate corresponding parts.

This invention relates to certain improvements in that class of. locks which serves to secure a hasp, provision being also made for sealing the lock, so that it cannot be opened without violating the seal.

The hasp is made to catch over a lng, which projects from an extension of the locleplate, the latch being provided with a cavity `in its .under surface, which drops over said proiect-ion, and serves to iucrease thc security ofthe mechanism.

Thela-tch islocked by a bolt, which`s driven outward by a spring, and retained by a series of tumblers.

As the latch is vpressed down, itsI nose acts on alever,` which adjusts the tumblers before said nose strikes the head of the bolt, so that by the pressure on the latch, the bolt can be forced back, and made self-locking.

Asafety-shield, appliedbetween the key-hole and that portion of thetumblers which' is acted on by the adjustng-lever, protect-s said portion against any instrument which might be introduced through the keyhole.

The latch is lprovided with a perforated lug, which, when said latch is locked, corresponds with a similar lug projecting from the key-hole guard, so .that by passing a seal through these lugs, the key-hole as well as the latch are both-sealed.

In the drawing-` The letterA represents the case, which encloses the locking-mechanism.

' This caseA is provided with an extension, B, to which is hinged the latohU, and which is provided with a lug, a, to catch in the mortise of the hasp D, so that' when the latch-,is closed down, said hasp is rmly retained.

-In the under surface of the latch C is a cavity, b, to admit the top part of the lug a when the latch is closed, so that the introduction of wedges is rendered diilcult, and thel security of the lock is materially increased.

The locking-mechanism consists of a bolt, E, which is vdriven forward by a spring, c, andv retained in its forward position by tumblers d, as shown in fig. 2.

In order to be able to force the bolt back, the tumblers have to be adjusted. This object is effected by the action of thenose e of the latch on a lever, j', which is so formed that itsy tip projects somewhatbeyond the head of the bolt, while its tail bears against -the edges of the tumblers, a portion of which is so formed, that by the action of the lever f, the tumblers will be adjust-ed iu position, to allow the bolt to recede.

As the latch is pressed down, therefore, the tumblers are adjusted by the action of the lever j, before the nose l@strikes the head of the bolt, so that by the pressure.V of said nose, the bolt can be forced hack.

After the edge of thc nose c has passed the bolt, said bolt flies out, and retains the latch, and the tumblers reassu'me the'position shown in iig. 2, the tip of the lever j' being'received by a cavity, g, (see iig. 1,) in the side of the nose c.

Between the key-hole and the tail of the lev'er f is a safety-shield, 71, which. prevents the introductin of an instrument, for the purpose of acting on those portions of the tumblers which are acted on by the lever Land which are so formed that the tumblers could .be readily adjusted by the Aaction of any flatinstrument.

The key-hole is protected by a spring-guard, t', which is provided with a perfor-ated lug, j,to correspondto a similar perforated lug, Je, projecting from the latch when said latch is closed.

By securing a seal in the lugs j k, both the latch and the key-hole guard are secured in position simultaneously, and neither the lock nor the hasp D can `be opened without violating the seal.

\Vhat I claim as new, and desire to secure by Letters Patent, is-

1. The adjusting-lever f, in combination with the nose of the latch C, and with the tumblers (l and bolt E,'constructed and operating substantially as described. 2. The cavity g, in the side ofthe nose c of thelatch, to operate in combination with the. lever f and Witnesses W. HAUFF, E. F. Kas'rnnnunan.