US916545A - Door-latch. - Google Patents

Description

l. HUGH-T: DOOR LATCH. APPLIMjIon FILED APR. 2', 190er Patented Mar. 30,4909.

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J.FE UCHT. DOOR LATCH. APPLOATION FILED APILZ, 1908. v f Patented Mar. 30, 1909.

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BY 'dwr/f-W .UNITED sTATEs PATENT orifice.

JOHN FEUCHT, OF ST. PAUL, MINNESOTA.

DOOR-LATCH.

To all whom it may cof/wem:

Be it known that I, J onN FEUCHT, residing at St.v Paul, in the county of Ramsey and State of Minnesota, have invented a new and Improved Door-Latch, ofwhich the follow-` iis a specication.' i. hisV ventlon 1s 1n the nature ofan 1mproved construction of door latching device,'

.improved cooperative arrangement of a pivloted dog or atching member, and a cam lever for adjusting-the said latching member to its latched'or released position.

' In itsmore complete nature, this invention embodies, in combination with a pivoted latching dog or member, a cam lever that coV crates therewith for adjust' the said latc ing dog to its latched and re eased osition and suitably mounted for being astened on the outside of the door, and a su plemental `deviceoperable from vthe insi e of the door for moving to release the lever to unlatch the latching member, and in its stillmore subordinate features, rn present invention consists in certain deta` s of con- .struction and. novel arrangement of parts,

vdoor all'of which will be hereinafter fully described,speciiicalyllpointed'out in the appendedclaims an ustrated in the accompanying drawings, in'which:-`-

Figure 1 is a pers ective view which shows my im roved door atch or catch mechanism secure upon the outside of a screen door. Fig. 2 is a similar view which shows the same as appliedto an ice box door, parts of the e'ing in horizontal section and the latching device viewed from the inside of the door, the door being shown open; Fig. 3 is a horizontal section, taken substantially on the line 3-3 of Fig. l. Fig. 4 is a cross section, taken on the line 4-4 of Fig. 2.- Fig. 15',- is a detail perspective. view of t e several parts that. com rise my improved construction ofl door atch lmechanism separated` Specication of Letters Patent.

Application led April 2, 1908. YSerial N o. 424,681.

Patented March 30, 1909.

Fig. 6 is a 'perspective view of a slightly modied form of my invention, the same being shown as an inside doorlatch.

In the present form of my invention, a latching dog 8 and a doo adjusting lever 9, having a finger en agingzloop portion 9X, are pivotally mounte in a longitudinal socket a* formed between two right- angled brackets 3 and 4 that face one another and each of which has a foot portion 30-40 for conveniently attaching the sameon the door frame 1 by the screws 2, as clearly shown in the drawing.

The bractket piece 3 has a pair of pendent bosses 31-32 each of'which has a reduced pintle STL-32 for iittin in the apertures 40u-411 that are formed`r in the opposite bracket member 4 and whoseends are upset to form rivets for holding the two bracket pieces in proper relation, it being understood that by providing the bosses 31-32 as shown, the two brackets will always be held separated to allow for a free play of the latch dog 8 and the lever 9 upon their pivots.

The latching dog S .in the present case, is formed with a cam seat 10 and with a lug or stud arm 11, the latter merging with the said seat 10, it also having an inwardly cxtended heel piece 10b and a toe or latch end 10C for lengaging the latch keeper 17, as clearly shown in Fig. 3, by reference to which it will also be noticed that the dog 8 is 'hilcrumed on the boss 31 in such manner as to coact with the lever 9 fulcrumed on the boss 31.

The lever 9 at its pivot end, has an eccentric cam 12 that is so formed and positioned relatively to the dog 8 that when the said lever 9 is swung inwardly in the direction oi the arrow a, it engages the stud arm 11 on the dog 8 and forces the toe end thereof outwardly into the keeper or latch mortise and finally outwardly into a tight frictional contact with the keeper member 5, the latter, in

converge toward the latch piece 50, the said ribs' having for their 'object to center the locking devices since when the same are used on heavy doors the said doors frequently sag down, and by providing the guide ribs 51, when the dog 8 is forced into engagement with the. bottom of the bracket 50 and is )ushed upwardly 'under the iniiuence of the lever 9 it engages the said ribs andv thereby gradually lifts the door and at thesanre time brings the latchin device intoa proper alin'ement. When theever 9, which has an inward extension or handle, is swung outwardly in the direction of the arrow-b, it engages the heel ol the latch 8' and therebyT moves the toe end inwardly and out of engagement with the latch keeper portion 50v and to holdithe said lever 9 and the dog 8 to the open position, a spring wire 15 is used, that 1s coiled about the stud 33, has one end lextended under another stud 34 projected from the bracket 3, and has its free end held in engagement with the heel portion 90 of y the lever 9, as clearly shown in Fig. 3,

- wardly to release the dogor latch member 8 for opening the door. ABy slamming the door the latch mechanism automatically closes.

When used as an ordinary inside door latch the pusher latch and the stem are omitted and the said parts of my invention are arranged as shown in Fig. 6, the door or latch member 8 in this arrangement being adapted for entering the latch mortise 175L inthe door jamb.

By reason of pivotally mounting the lmembers 8 and 9 as stated and shown and combining the spring therewith for normally holding the said parts under tension to their open position and with the toe end of the member 8 projected, it will be readily apparent that in closing the door, the latching dog 8 when arranged as sho\` n in Figs. 1 to 5 will strike the latch member 50 and thereby automatically latch the door.

- From the foregoing, taken in connection with the accompanying drawings the manner in whichmy invention is manipulated,

y and its advantages will be readily apparent.

By mounting the lever and dog as shown, the latchin action is ositive and the un-, locking-casi y eHected, y simply pullingtl! e, lever 9 outwardly, which lever at the same time serves as a convenient handle for pulling the door open.

Having thus described my invention, what l claim and desire to secure by Letters Patent, is

1. A latch that comprises a pivoted dog and a ivoted'le-ver, the dog having a stud arm, a atch keeper engaging end and a heel like extension, the lever having a cam portion alternately engageable with the stud arm and the heel extension `for adjusting the dog to either of its'positions'. l I

2. A latch comprising a pivoted dog and a separate lever having a inger engaging vortion, said dog and lever being mounte on one side of the door, the dog having a latch.

ing toe at one end and a heel portion at the other en t, the lever having a cam portion adapted when it is swung in one direction to move the locking dog to its released position 'and'when swung in the opposite direction to Y move the said dog to its atching osition.

3. A latch, comprising a pivote( dog and a lever mounted upon the insilde of the door, the dog having a stud arm and a latch engaging end and a heel like extension, the

lever Ihaving a cam portionalternately engageable with the stud arm and the heel eX- tension for adjusting the dog to either of its positions and a su plemental device operable from the outsi e of thedoor for moving the lever to one loi its positions.

4. The combination with the iixedly held latch keeper, a pivoted latch dog and a separate lever mounted on the door, thelever having an eccentric cam to engage with the locking dog, said dog having a toe, piece to engage the said latch keeper when the door is closed and that automatically moves into engagement with the. said keeper when the lever is moved in one direction, and that` automatically moves out of engagement with said kee 3er when the lever is moved in an opposite irection, saidv lever serving to move the latch dog into and out of its latching position and retaining said dog in its latching and unlatching positions.

5. The combination with the iixed latch keeper; oi' a dog pivotally mounted on the door, said dog having a toe at one end, a heel extension at the other end, and a stud arm, the lever pivotally mounted on the door having a' cam head for coperatingwith the dog and adapted under one movement to en 'age the stud arm to force the dog to its loc ed position and under another movement to engage the heel of thedog to move it toits unlocked position.

6. In a door latch. of the character described, the' combination with the latch keeper on the door casin door, a latch dog pivotall mounted on the bracket, having a toe piece for engaging the keeper, said latch dog and keeper being relatively so arranged whereby the dog automatically locks with the keeper when the door is closed, and a'lever havin a iinger4 a bracket on the ed on the bracket foi1 engaging with and ribs when the door is closed, and a lever moving the latch dog to its unlocked posipivotally mounted on the Adoor that copertion, andasupplemental means for actuating ates with the latch do to move it into a the lever in one directionk of movement. locked engagement wit the keeper, as set 5 7. .The combination with the latch keeper forth.

that includes a base having inclined ribs on JOHN FEUCHTl its base that converge toward the latch dog receiving. portion o the keeper; of a latch Witnesses: dog pivotally mounted on the door, having OTTO KURFFERS, .lona toe piece for engaging the keeper and its R. P. DUNCAN.

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