US1575493A - Door latch - Google Patents

Description

March 2,1926. Y 1,575,493

' P. LANG DOOR LATCH Filed sept. 24, 1925 2 sheets-sheet 1 March 2 1926. u 1,575,493

P. LANG DOOR LATCH Filed Sept. 24, 1925 2 Sheets-Sheet 2 Patented Mar. 2, 1925.

asians PHILIP LANG, OF CEDAR FALLS, IOWA, ASSIGNOR 'IIWAGNER MANUF IANY, 0F CEDAR, FALLS, IOWA. j

Doon LATCH.

Applcationfled September 24, 1925. Serial No. 58,368.

To 'all ifi/710m t may concern.:

Be it known that I, PHILIP LANG, a citi-V zen ot the United States, of Cedar Falls, in the county of Black Hawk and State of lowa, have invented certain new and useful Improvements in Door Latches; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable others skilled in tl e art to which it appertains to make and use the same.

My invention relates to improvements in door latches.

The object of my invention is to provide a door latch operated by a swinging handle, and the weight of .the handleexerting pressure on the latch proper to hold the latch in either its latched or unlatched position.

Another object ot my invention is to provide a. latch ot this'character which will draw up the door tightly against the jam to form a tight joint therewith, and. also proriding means whereby the latch may be locked by an ordinary padlock so that the lever can not be moved for unlatching the door. y i

A further object otmy invention is to provide a latch ot this character which can be readily applied to any sliding door and is reversible for a right and left hand door.

Astill further object ot' my invention is to provide a simple, cheap and durable latch ot this character having certaindetails of structure and combination ot parts hereinafter more fully set forth. L

In the accompanying` drawings Figure 1 is a side elevation ot a portion ot a door and -jain showing my latch applied thereto, and in a latch position.

Figure 2 is a side elevation similar to Figure 1 showing the latch in an unlatched position.

Figure 3 is a transverse horizontal sectional view taken on the line 3-3 of Figure 1.

Figure il is a vertical longitudinal sectional view take on the line 4 4 ot Figure 1.

Referring now to the drawings, 1 represents the door and 2 the jam. Secured Ato he door by means otv bolts 3, is the pla-t a, said plate being ot a rectangular' elongated form and having an outwardly depressed central portion 5 intermediate its rra as@ .1ers (aids.- Tla-S depressed por:

tion 5 hasriveted at the center the outwardly extending stuby shaft 6, which ei;- tends` through an opening 7 in the .latch 8, whereby the latch is pivotally n'iounted thereon to swing in operative or inoperative position. The latch 8v has the hooked outer end 9 which is adapted to cooperate with the keeper 10. The hooked end 9, of the latch, has its inner wall 11 slightly tapered so as to cooperate with the curved wall 12 ACTURING coM- v of the opening 13, ot the keeper. Pivotally mounted upon the outer end of the stub shaft 6 is a plate 14, `preferably of a circular form, and the stub shaftis riveted as indicated at :15, into the recess 16, in the outer face ot theplate, whereby the disk is tree to rotate on the stub shaft 6.

The latch 8 proper is provided with a a pin 22 extending across the space between the ears and riveted. thereto. Pivotally mounted upon said pin 22 is a handle 23 which has a free movement to swing on the pivot, for a purposehereinafter more 'fully set forth. The outwardly depressed portion 5 ot the plate t is provided at its upper right handend with an outwardly extending lug 2$which limits the movement ot the latch 8 to the right, as fully shown in liigure 2 of the drawings. The-object ot the segmental groove 18vis to allow the member 14 to have a complete halt turn so that the handle 23vcanalways be swung downwardly and always remain in a vertical position.k y

In operation, it will be seen that the latch being in the position shown in Figur-e 2 ot the drawings, andhandle 23 is moved in the direction ot the arrow, and the pin 19 travels-in the segmental groove 18 ot the latch 8 until it "strikes, the end ot-the segmental groove, and the latch is then vcarried by the Aplate 14 downwardly into the keeper 10, and theV beveled face 1l of the hooked end9 engaging the curved wall 12 `oi the keeper,v tightly draws the door against` the jam. lVhen the latch is in this position the handle is in an upward verti- Qa Position as shown. in gvgttedflines, Figure opening;` ot the door.

l, and the handle is thenV swung downwardly on its pivot 22 to the position shown in full lines, Figure 1. In the event that the door slides in thereverse,direction from that shown in the drawings, vthe latch is inverted and likewise the keeper is inverted,

and the latch works in an upward direction j to latch the door, and in a downward dii-ection to release the door?.

The slot i7 in the latch 8 is adapted to receive a pad lock- 25'` which engages the Vraised portion 5 of the attaching plate, and prevents the movement ofthe latch and thus the latch serves as a locl to'prevent'the Having' thus Tully described'n'iy invention what li claim is n if. A latch oi the character described coinpi'ising' an attaching member, a stub shaft carried stub shaft, and afineinber pivotally mounted Onthestub shaft, and 'having lost motion "connection with the" latch, anda handle pivotallv mounted on ldie Vmember whereby the handle is at all times maintained in a' downward vertical direction.V i

2. A latchoicf-the character described coinprisinp; an attaching` plate, a stub shaft carriedthereby, a latclipii'*otally mounted on said stub shaft.- rand,lia'ving a segmental mounted thereon, a` vlatch pivotally mounted on the lstub shaft intermediate its ends, and having'l atene end a hook'to cooperate with the keeper and-the opposite-end provided' with a slot to receive a lock which yengages the attaching' plate for,preventingfthe movement of thelatch, and alineniberpivoted on the Astub shaft and having alost motion connection with thelatcli, 'andal pivotcd handle carried` by theinember,y "whereby the handlev is swung' downwardly when, the latch is latched or, unlatched.A

l. Allatchct'the character described com-- prisiniran attachingv plater having' a raised central portion', a stub vshaftcarried.:by said raised central portion` a latch pivotally mounted intei'mediate'itsends onthe stub shaft,l .al hook'lcarried .one 'endY of thelatch.r andffth'e oppositemend having' a slot adapted to receive, a pad vloclg'whicli` cooperates with the raised portion o'ftheraty tachine` plate to preventV vtlieinoveinentY of the latch; a ineinberlpivota-lly,carried by the stub shaft?l Vand -jhavingl'v a, lost motion thereby, a latch pivoted on said intained ina downward position when.

connectionwith the latch, and a hand-le pivotally mounted on a horizontal pin carried by the member, whereby the handle is always maintained in. a downwardV position. HTA latch of; the character described comprising' an attachingplate, a stub shaft carried by the attaching plate, a latch piv oted intermediate its ends on the stub statt,

'and' havingl a hook` at one end, and a slot at the opposite end adapted to receive a pad lock to engage the attaching' plate to prevent the-movement of tholatch, a meinber pivotally mounted on the stub shaft, andk having a lost motion connection with the latch for swinging the same into and out ot'a latched position, and a handle pivotally linountedon a horizontal pivot carried by the member, whereby the handle is at. all times maintained in a downward direction. G. A; latch ofthe character described coinprisingr an attaching plate, a stub shaft carried thereby, a latch pivoted intermediate itslend on the stub shaft, and having a hook at one endand a:V slot at the opposite end'to receive apad .lock to'engage the at# tachingplate'and prevent the movement of the latch, a stop'itor limitinguthe movement ofthe latch, arineinber carried by the stub shatha pin andslot connection between the latch` and the member, and a handle pivotally n'iounted upon the member, .whereby the handle isv atall tiinesjinaintained in a frown-ward position;

, 7. A latch. of thecharactei described comprisin;r an attaching` plate, a stub shaft carriedv `by the plate, a latch pivotally mounted on the stnb'shaijt, a member pivotallyr inountedon the .stub shaft, a .pin and slot4 connection' between the latch and thcii'ieml'ier, and I a handley pivotally mounted upon the member onr` a horizontal pivot, wherebytliehandle isalways maintained in a downward position to. prevent'the movement oi the latch when lina latehed or unslot connection between `the latch and the.

member, and `a handle pivotally mounted on the member, whereby the saine .is at all times maintained in a downward direction.

,Inl testimonywhereof, I Chave signed this spe-cilication;

riiitir; Llave.

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