US1115762A - Latch. - Google Patents

Description

0. M. AHLBERG.

LATCH.

APPLICATION FILED JUNE 22, 1912.

1,1 15,762, Patented Nov. 3, 1914.

UNITED sTATEs rATE rouFroE;

CHARLES M. AHLBERG, or sr. PAUL, Mmnnsom;

LATCH.

To all whom it may concern:

Beit known that I, CHARLES M. 'AHLBERG,

I j a citizen of the United States, residing at St.

Paul, inthe county "of Ramseyand State of Minnesota, have invented anew and useful Improvement in Latches, of which the following is a. specification.

' The object of this invention is to provide a latch for doors, gates and other lunged devices wh ch is simple and inexpensive n construction and effective in use. I a k Afurther object is to so construct the latchfthat it will lift the free end ofithe door into position toregister with the door" jamb or casing should the hingesofthe door through weakness fail to holdthe door in registering position, I

In the accompanying drawing forming part of this specification, Figure 1 is aper spective of a door. hinged in a door frame illust'rating'my invention applied thereto,

and Fig. 2 isa side elevation showing the invention. r

This invention consists of twocooperating elements, one a latch barA and the other a. latch spring or latch bar engaging member B which'is adapted to engage the bar A and hold the door C on which the bar is mounted in' closed position in its frame" D. The

of a detail member A is formed withTa flange 2 on the bar through which screws 3are passed to secure the bar on the face ofpthe door. The

,spring B is in the form of a single piece or k "strip of spring material bent outwardlyand and out curved spring shoulder 4 over which,

upwardly between its ends to forman up the bar passes into engagementduring the act of closing the door. The shouldert produces a down curved cup portion 5 into which the bolt is received, the shoulder 4 tending to prevent the bolt from disengag ing; The ends'of the spring B are secured to the frame D of'the door suchas by means of screws 6. The door 0 is shown hung upon spring hinges 7 ,which tend to'close the door in the frame, the springs in the hinges being of sufficient strength to carry the bolt over the shoulder on the latch, spring. WVhile the bolt is passing over the Ghpies 01' this patent may be obtained for five cents each, by addressing the Commissioner Patents,

shoulder "4;, the latch spring lifts the door sufiiciently In accordance with the patentst'atutes I have 'describedthe principles of operation of my invention together with the apparatus which I- now consider to represent the best embodiment thereof but I desire to have [it understood that the construction shown is only illustrative and thatthe invention can be carried out by other means and-applied to. uses other thanth'ose above the scope of the following Specification of Letters ljatenti Patented NOV, 3,1914, U I Application filed .Tune2,19 1 2. Serial No. 705,197.

I to registerit accurately" in the door frame.

framein which said door is hinged to close,

a latch bar secured to said door and .pro

jecting laterally from its free end, and an engagmgmember on'said door frame with which said bar is adapt'ed to engageto hold the'door closed, said engaging membergconsisting of a single strip ofspring material secured by its outwardly projecting ends to the door frame and bent upwardly andout wardlv between its ends to form a large curved bowfone of which is turned in and down to produce a resilient shoulder over which said bar is adapted to' nove during the opening and closing of said door, and an indenture-at the'terminusof saidflin and down turned portion adjacent, to the door frame which forms an engagement by said engaging member with said bar to hold said *In testimony whereof, I have 'two subscribing witnesses.

] Witnessesi WV. J. COURTNEY, -C. N. MI LER.

Washington, D. Q."

, Signed y 'nameto this specification, 1n the presence of .door in closed position and said spring shoulder being adapted to lift the door dureing its closing movement to cause the same to register accurately withthe opening in "the door frame.

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