US1170685A - Safety lock-latch for refrigerator-doors. - Google Patents

Description

Y T. O. SCHRADER. SAFETY LOCK LATCH FOR REFRIGERATOR DOORS. APPLICATION FILED JULY 1, 1915.

1,170,685. Pat e uted FehS, 1916.

UNITE? THOMAS O. SCHRADER, 075' ALLEN'IOWN, TENFS IW ANIA, AS3316 HABDVJ'ARE CCZM?I=.NY, FULLERTON FEIQI-TSYLVETKBLA, PENNSYLVANIA 1 379 585 catiozi sf Letters Patent. Fgb {:3 ifij -fi,

secured thereto; "his 55 ell hea -Way M, with v a 21ml an operating a projecting finger a, for *ment of the said casing a, nn zl for th 3 "aien of the same, reference. 60 made to my ill ni'ted States Letiers Patent T all whom it may concern Be it known that I, THOMAS O. ,l a citizen of the United Suites, re Allentown. in the county of Le i State of Pennsylvania, have invenl' f tain ne and useful Improvements n. Lock-Latches for Refrigerate? ears, (:3 which the following is a speeificatmn. l lo. l,11?,7()9 of Nevemher l' th, 1914-, as

My invention relates in latch p. shaming an ef i i; arrangement for use,. l'ml v adapted for use in sonneetion Lh she type sf latch-fastener embodying refrigerator-doors, of the t jpe in he particuiar features 0% my present invenslan'xming the (1001" against (1e latches the (10m: and tui'ninp; causes the engaged latch to la 15 has been found that when the l? which causes the latch tu as ('ozidition, it possible in in M inst one end of the mm-ueviee in the same so as to em e i-zmgus i is provided with 9. cashang ope iing b", in the,

' secured to he in one corner .25 7O I and in the bottom. pm

i. I5 lmth as clearly shown in 3 for purposes to be piesently more Q Iii; l

2 t me -cnsing to clear the camlevies am:

a, is pivolally moimteil -This device is of peculiar? i'l y' shewn in i 121V- :1 hub 0 areuncl which ewing (Z the respective O of which engage lug uhmat one corner thereef al the said casing 5 0, as shown, is Jay in this part led at 0 Le the m2 it is formed into and is suhs tsn osire side 0 Ewen ihe (lo-9r, while the :1 l .slzecl condition; and. there'l ure, 1k ilit invention is design-ail in pre\ such defined act, lay 'th provision 0i :1 3 r i111 l'mn'? n? cam-(1m ee held under spa-111:2 msion, and so arm: any attempi, to release the tong; leek-casing as well as am! iii-ti. nipulating the ling; 0i i 30 .Will he paw/mind the form of the midi mam-(h: when. Hie latched (leer ls locked 00m 7 i ion,

The Im'nn JTl-Il seeps of my cmliion will he n e fully 1m 3:3 Hm fullmving; (lesezu ztien taken than with the {1 amps ving iili'msizi s iii 0 and ing' 1 Yb liereoi', which a", between li we 1, a i; mt elevations vi However,

. equally good 16- mt departing from .1 in ention of the s defined in the iii spz'iiag controlled ii the 5 as m of l w pivoted ope:- t'

tencer.

, e. mtien he SEUG lat-cl";

e; HC- V liwly arm my said inventim 21ml mg: lug (f. ngzeme'n'r, 9f the spring, r h m1 YIN zed or m'nitted and still "u sitinn "for Opwni 5m? l' ifj. i :1 1m letive. View of the 1 .7

' m Hie (:mirle ice tn that shown E i I llDSi? the jamb 7? l0 :1 5h: msingg, in which. the farce ex- 7 she device a, tension of the 11 1) ilm (ii-nwiz gs a, the door maximally the lug 0 spring (Z, to allow the tongue a to move into such a position as to engage the upper portion of the surface of the said camdevice to hold the said tongue against shift ing and thus the door in a closed position. Turning the key in the key-Way a causes the operating lever a, to be locked With relation to the engaged position of the tongue a, With the said device 0, as clearly shown in Fig. 2. It will thus be observed that any attempt to shift the said cam-deivce from this position with the finger (1 in contact With the part c of said device will be prevented and likewise any movement of the tongue of, suil'iciently to release it from its engagement with the said device to open the door. The surface 0 of the cam-device 0,

is adapted when the latch is unlocked to contact with the finger a", of the operating lever 60*, which depresses the part 0 of the said device a, to cause it to assume momentarily such a position under the tension of the spring cl, as to enable release of the tongue (0, from its engaged relation with the part 0 of the sand dev ce 0, to thus freely open the door a. it for any reason the spring (1, underwhich the device 0, is

held in operative position, as above described should become broken or disarranged and the latched door he still locked, the arrangement of the device 0 is such, that it will still prevent opening the door, because any attempt at shifting the device will cause at the same. time, the finger a, of the operating lever a to engage the part 0 of the said device, to prevent a movement to such an'extent as to shift the said device 0, or to release the tongue 0, from contact ,frigerator or other door.

with the part 0", of said device so that thereby the foregoing arrangement provides a safety lock-latch fastener Having thus described the nature and objects of my invention, What I claim as new and desire to secure by Letters Patent is 1. In a device of the character described, a lock-casing having a tongue, an operating lever having a finger, a casing and a spring controlled device mounted in said casing and having a cam-surface for said tongue to engage, to hold the door latched and an opposite contact-surface adapted to permit of the turning of said device in one position of movement of said finger and to prevent movement of said device in the other position of movement of said finger.

:2. Ina device of the character described, a lock-casing having a tongue, an operating lever having a finger, a casing having an oblong opening in the top and a spring controlled device mounted in said casing and having a cam-surface for said tongue to engage to hold the door latched and an opposite divided contact surface adapted to permit of the turning of said device in one position of movement of said finger and to prevent movement of said device in the other position of movement of said finger.

In Witness whereof, I have hereunto set my signature in the presence of twosubscribing Witnesses.

THOMAS O. SGHRADER.

Witnesses:

MABEL G. DAVIS, CLARA K. Sonaaocr.

for a re-

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