US161505A

US161505A - Improvement in door checks

Info

Publication number: US161505A
Authority: US
Publication date: 1875-03-30
Anticipated expiration: 1892-03-30

Description

n. GUNDELFING'ER.

Donr-Check. -161,505. Patented March30,l875.

WITNESSES mums.

THE GRAPHIC COPHOTO -LITH.39 8v?! PARK PLACE,N.K

L'NI'IED STATES IMPROVEMENT IN DOOR CHECKS.

Specification forming part of Letters Patent No. 161,505, dated March 30, 1875; application filed January 16, 1875.

To all whom it may concern:

Be it known that I, DANIEL GUNDELFIN- GER, of Jefferson City, in the county of Cole and State of Missouri, have invented a new and Improved Door-Check; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming a part of this specification, in which- Figure 1 is a side elevation partly broken out. Fig. 2 is a section of the catch through line a m of Fig. 1. Fig. 3 is plan view of stop E. Fig. 4, bottom view of catch.

The invention relates to certain improvements in the door-check patented to me, (No. 155,942,) October 13, 1874, for preventing the knobs of doors from striking the wall-paper, which consists in a spring-arm thrown out from a box on the door, and locked in a catch projecting from a case in the wall. The present invention consists in certain improvements therein, as hereinafter fully described, and then pointed out in the claims.

A represents the box, which is attached to the door, and contains the spring-lever B, held by a spring cross-pin, b, while 0 represents the case on the wall in which is located the spring-catch D. The latter is, in my former patent, a spring-lever, while I now employ the quadrangular slide-bar cl, having shank (1 On the outside, and in a recess CASE B.

near thumb-piece d of shank d, is a spiral spring, d while a groove, 0, and cross-bar c of case 0, serve to guide the slide in its movement. This makes a stronger and better catch, while it is much less liable to get out of order. I find by experience that after the box A has been fastened on a door, and a case, 0, on the wall, so that the arm will exactly lock, the door contracts or sags somewhat, so as to prevent the end of arm from entering the hole of case 0. I have, therefore, placed an adjustable stop, E, over the short arm of lever B, and slotted it at 6, so that it may slide on the clamp-screw F and hold the lever at a greater or less throw. This prevents the necessity of removing and replacing either the box or case.

Having thus described my invention, what I claim as new, is-

1. The quadrangular slide 01, having shank d thumb-piece 01 and spring 61 combined with a case, 0, having groove 0 and cross-bar 0 as and for the purpose described.

2. The slotted slide E, combined with a clamp-screw, F, placed on the box A, and with respect to lever B, as and for the purpose specified.

DANIEL GUNDELFINGER. Witnesses:

A. FULKERSON, J. M. JoNEs.