US1834819A - Door latch - Google Patents

Description

Dec. 1, l BEELER DOOR LATCH Filed Feb. 28, 1930 INVENTOR Patented Dec. 1, 1931 UNETED STATES IVAN E. BEELER, OF PORTLAND, OREGON DOOR LATCH Application filed February 28, 1930.

This invention relates to certain new and useful improvements in latches for use upon doors opening to either side.

"one of the principal objects of the invention resides in. the provision and arrangement of foot operated means for actuating the latch.

An additional object of the invention consists of means for automatically resetting the latch upon releasing the foot operated means whereby the door will be retained in closed position when swung within the door frame.

lVith the above and other objects in view, the invention further consists of the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claim.

In the drawings Figure 1 is a fragmentary elevation of a door and frame thereof partly broken away to illustrate the construction and arrangement of the invention thereon for use in conjunction therewith.

Figure 2 is an enlarged longitudinal sectional view taken through the latch mecha nism.

Figure 3 is a top plan view of the foot operated means,

Figure 4 a fragmentary detail sectional view taken through that portion of the foot operated means having connection with. the latch.

Figure 5 is a sectional view taken on line 5-5 of Figure 1.

Referring to the drawings in detail wherein like charactersof reference denote corresponding parts, the reference character 10 indicates generally a conventional form of door frame having a door, such as indicated at 11, swingahly mounted laterally thereof upon pintles 12 and 13 bearingly mounted within blocks 14 on the upper surfaceof the floor and the under surface and rail of the uppermost or top section of the door frame. All of the above is of the usual and well known construction incident to that of swinging doors and forms no part ofthe present application for Letters-Patent but the details of construction are mentioned merely for the purpose of Serial No. (l32,188.

of the swingably mounted door 11. The latch bolt 17 slidably mounted within an apertured disk 18 anchored at a desired point in the length of the housing 15 carries an enlarged head 19 provided with oppositely inclined or beveled faces 20 upon the sides thereof and meeting at their outermost ends, as substantiated from the illustration of my invention in Figure 6 of the drawlngs.

The latch head 19 is also provided with shoulder portions 21 wholly within the housing 15 and designed for abutting engagement with the inner sides of an inturned flange 22 upon the outermost projecting end of said housing. When the shoulders 21 are forced against the flange 22, incident to the expanding actionof a compression spring 23 encircling the latch pin 17 and sprung at its ends against the adjacent surfaces of the disk 18 and latch head 19, same will restrict further egress of the entire latch assembly. It is obviously apparent that the latch head 19 is engaged and disengaged with the station ary latch keeper escutcheon plate 16 in the ordinary manner.

A pulley wheel 24 horizontally disposed within one end of the housing 15 has trained thereover a connecting element or cord 25 joined at its uppermost end with the adjacent extremity of the latch bolt 17 and depending within the confines of the immediate hollow enclosure of the door frame for ultimate connection with a fulcrum lever 26 disposed beneath the floor surface. One end of the fulcrum lever is bifurcated, as at 27, to facilitate accommodation of an eye bolt or screw 28 and to project a common pivot pin 29 therethrough in order that the fulcrum lever may swing in a manner about to be described. A sleeve member 30, also projecting through the floor surface, is provided with attaching flanges 31 secured to the under surface of the flooring, in the manner shown in Figure 4; of the drawings whereas guide flanges32v depending as continuations of the walls of the sleeve 30 are projected upon opposite sidesof 5 ,the fulcrum-lever 26f to prevent distortion thereof. V Y

A cross bar 33, carried upon the opposite end of the fulcrum lever 26, carries foot engaging portions '34 upon the ends thereof having the heads'projecting for given distances above the surfaceofthe floonas substantiated from theillustration of my invention in Figure 1. A retractile spring 35', en-

, circling-the connecting element 25 within the sleeve 30 is anchored at its endsto the latter and tothat portions of the operating lever 2'6 disposed'between the guide flanges 32;

' From the foregoing description and accornpanyingdrawings, it isunder stood that the springs 23 and'35 respectively will normally dispose the latch bolt in locking position and the fulcrum lever 26 as in Figure 1 whereby thedoor will be locked against entry by unauthorized persons butQeasily accessible to proper'parties merely by the depressing of the foot engaging portions 35. 7

The invention is susceptible of various changes in its form,'proportions and minor details of construction, and the right is here- 3 in reserved to make such changes as proper- 1v fall within the scope of the appended claim. 7

'Having described the invention what is claimed is A latchcolnprising a housing, a spring pressedboltslidably mounted the housing, a'lever,pivotallyfm0unted below the housing, a flexible element connecting said bolt with the lever, a sleeve slotted at its lowerend and adapted tor'eceive the lever, said flexible elef ment passing'through said sleeve and a spring housed within the sleeve and connectedat one end with the sleeveand at its other end with tlie'lever,

Injtestiniony whereof I affi x invsignature.

v w IVAN E. VBEELERI.

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