US 1686417 A
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Description (OCR text may contain errors)
Oct. 2', 1928. 1,686,417
w. NORMAN DOOR CATCH Filed April 29, 1927 Y Fatented ct. 2, 1928,
` UNITED Sie;
*Y WLLIAMKNORMAN, or NORMAN, nnnnasme noon oAToHJff i i Appncaaon inea April a9, 1927. sentano. 187,605. j
This invention relates to improvements for latchi'ng and holding doors.
The .primary object of this invention is the provision of a simple type of door catch wlnchis adapted for use in connection with casing and door portions of buildings, where-` by to enablethe door to latch in convenient manner whenever it is closed. e f A further and important object ofthis inl0 vention is the provision of a latch structure for doors embodying means by which the latch structure may be dogged to prevent unauthorized persons from outside the buildingstruc-ture from operating the same. Y further object of this invention is the provision of an improved latch structure which may be used in connection with swinging or sliding types Aof doors. and which is reversible for use at.l either side of the door, depending upon the side to which it is to be attached. j l
Other objects and advantages lof this invention will be apparent during the course of the following detailed description; Y
In the accompanying drawing, forming a part of this specification, and wherein similar reference v characters designate corre sponding parts throughout the several views, Figure 1 is a view taken sectionally through a portion of a door structure, and showing the improved latch as Vit is connected to a jamb or casing portion of the door structure, this vi ew being takensubstantially on the line 1-1 of Figure 2.
Figure 2 isa fragmentary view of a front portionof a Y typeof keeper which may be used in connection therewith to receive the hoolrportion of the latch. Figures 3 and 4 are side elevations of the `improved latch structure, showing a cover portion thereof removed to expose working detailsv of latched positions.
Figures 5 taken substantially `on their respective lines in Figure 3 of the drawing.
Figure 7 is a view, partlyin cross section, showing themanner in 'which the improved door catch may be used in connection with sliding door structures. i
In the drawing, wherein for the purpose of illustration is shown only a preferred embodii ment of this invention the letter A mayy generally designate the improved door catch,
door structure, showing a novel 'Y the' hook when in latched andun and 6 are cross sectional views l which embodies a casingv structure B; movable bolt and keeper D; i The improved door catch A as used in. connection with two types of doors preferably ,has they casing structure B secured to the j amb portion F ad# jacent the swinging door G.v In connection with slidingdoors H such as illustratedl in Figure 7 the casing B is secured to .the door, and a novel type of keeper structure K is used. inthe casing` L adjacent the door H.`
Referring to the details of the casing structure B, the same preferably is of two-part construction, including parts 15 and 16, of
complementary` formation, which are substantially rectangular in outline and which provide the upper and lower rib portions 17 and 18 along the upper Vand lower marginal edges of eachof the saine, to provide a pocket '19 adaptedr to pivot-ally'receive tliel'bolt or hoolr C therein when the casing portions 15 and 16 are secured together.
Referring now tothe structure of the hook C, the same may be of any material, preferably iron, and includes a body portion 25' whichvat the lower corner thereof has` an opening 26 preferably a slot, which receives `therethrough a pin 27 whichV iscarried transversely across the compartment 19 by'means f of bolt or hook C is pivoted intermediate its ends. rlhe body portion 25 surrounding the aperture or opening 26 is somewhat reduced, and the side surfaces of this reduced portion rest in abutting relation upon substantially disc-shaped portions 30 formed on the insides.
the VVcasing portions 15` and 16, sothat the of the casing portions 15 and 16, extending inwardly vof thecompartment'19 thereof, as is illustrated in the drawing,so that the hook C at the place of its pivotal connection is mountin sliding contact with' the relatively small projecting` portions 30, `and so that the side surfaces of the bod-i5 portion 25 otherwise kdo vnot contact the inside surfaces of the casing portions 15 and "16, thus facilitating pivotal movement of the yhook C.` Atthe forward endfthe hook CA provides a reduced head 35,
vwhich at its juncture with the body portion- 25, on each side of the hook Cprovides shoulders 36, as illustrated in Figure 5 of the drawing. In position ywithin the casing B" the bolt or hook C at its reduced head portion extends through the frontl opening a() of the casing, so that the shoulders 36 mayhave an abutting action against rib portions 42 whichy areprovided in projecting relation toward the shoulders 36 at the front edges of the casing portions 15 and 16, and as is illustrated in Figure 5 of the drawings. The shoulders 36 abut against the ribs 42 when there is any tendency to pull the VhookC from the casing, incident to attempting to open the door, Aand thus reinforce the position of the hook C, re-
' lieving some of the strain which would otherwise occur on the pivot pin 27. The head 35 includes a lower recess 46, adapted to receive suitable `securing mechanism with the keepers D or K, as will be subsequently described, and the head portion"35 has the upper and lower edges 47 and 48 thereof tapered in converging relation toward the front edge 49 thereof, to
Y facilitate operation of the hook C, as is obthrough an opening 56 which occurs at the rear end ofthe casing B, so that a persony may engage the rear end of the handle 51 to pivotally move the hook or bolt C. The handle 5l has a depending lug 58 which provid-es a ,surface 59r inright angled relationfwith respect to the run of the'handle 51, which is n adapted to receive in engaging relation thereagainst the upper end of a substantially L- vshaped pawl or detent 60 which is pivotally connected, as at 61, tothe casing port-ions 15 and 16 in the rear opening 56 thereof. The detent 60 may be swung so that a laterally eX- tending leg portion 62 thereof engages against a shoulder 63 of the casing, and in which'instance thev leg portio-n 64 thereof is in depending .relation exteriorly of the casing wheret-he same may be easily reached by an operator. In this position the hook C is f free'to swing for unlatching the door. In
the other position ofthe Apawl or detent 60, and which is illustrated in 4Figure Bjof rthe drawing, the leg portion 64 is substantially vertically'disposed in resting relation at its upper endagainst the hook lug 5 8, and in which position it is retained by gravity to l maintain'the bolt C in a locked relation with casing B upon a jamb, screws 65 may be eml `ployed for securing the sections 15 and 16 together, these. screws having theirA heads respect toits keeper structure.
i In this position the leg portion 62 extends slightly outwardly from the casing where the same may GO be readily engaged by the finger of a person to facilitate outward swinging of the detent.Vv
In connection with the mounting of the countersunk in the casing sections 15 andr16, and other screws 66 may be used for not only connecting the sect-ions 15 and 16 together,
but which may extend into the jamb portion F, as is illustrated in Figure 6 of the drawing,
in order to mount the casing portion B so that the hook head 35 projects from the'forward edge of thej amb`F, where the saine may read ily enter the keeper D. Y
Referring to the keeper D, the saine is of novel construction, preferably formed" of sheet material, and including an attaching portion 7 O which may be of triangular shape,
adapted for attachment to the front surface of the doorG by countersunk screws 72, and vwhich attaching portion has a handlev 4 pivotally mounted thereon. This attaching portion 70 is apertured, at 75, adapted to be po'-l sitioned in alignment withY a slot 77 similarly provided through the door struc-ture G, and through slots 7 7 and 75 the head of the hook C may project. The keeper structure D alsoY includes a. flange portion 79 at right angles to the attaching portion 70, and adapted to overlie the edge 80 of the door G, and which flange 79 is providedwith upper and lower openings 81 and 82 therein. The lowermost opening 82 receives a pin 83 therethrough, the shank portion of `which is driven into the material of the door G, as is illustrated in dotted lines in Figure 2s'o thatthis portion extends trans- Yversely across the opening 77 and provides a keeper pin or element which may be received within the recess 46 of thelatch hook C.
In operation with the swinging type of door G, the casingB and hook C is mounted as above mentioned upon the jainb F, and the keeper structure D mounted` upon thefd'oor Gu YVhen the door Gr swings `closed the keeper pin 28 will engage the tapered surface 48 ofV the hook head 35, and will elevate. the forward end of said hook C until 'hook C will fall by gravity to receive the keeper pin 83 therein. In this position the apertured end of the hook head 35 projects outwardly from the keeper attaching portion 70, and through the aperture 50 a padlock or similar arrangement may be placed to positively lock the door structure in a closed relation with respect to the latch.
.The locking arrangement may alsobe effected by means of the detent 60, as above described;
Referring to the use of the improved latching` device A upon the sliding type of door, a pocket 90 is provided' on the inside `of the door, within which the casing B of the latch device A fits, so that the loutsideof the casing is flush with the inside surface of the `door I-I, and so that the end edge 91 of the casing B is also preferably flush with the' front edge 92 of the door I-I. In this relation of parts a recess 94will have to be provided inwardly of the inside surface of the door, to permit free pivotal movement of the detent 60 into holding and release positions. Y The hook head 35 projects outwardly from the forward l member 97, providing a compartment 98 therein, laterally through which a keeper pin 99 is supported, preferably adjacent the lower part and forward lface thereof, over which the hook head 35 may engage in accordance with the above described structure. Upper and lower attaching flanges 109 and lOl are provided integral with the box 97, which may be countersunk in the edge of the jamb L, and countersunk screws 102 are disposed through these flanges into the j amb L. 'The pocket 98 is of course open at the edge of the jamb so that the hook head S5 may readily kenter the same, and the keeper pin 99 may ride along the tapered surface i8 of the hook head 35 to elevate the same and permit lool;-v
ing of the door to the jambL.
Various changes in the shape., size, and arrangement of parts may be made to the form of invention herein shown and described,
without departing from the spirit of this in- 1 vention or the scope of the claims.
I claim: f l. ln a latch structure of the class described case providing a compartment therein andan opening forwardly therethrough with ribs projecting laterally and inwardly of the compartment adjacent said forward opening, and a bolt piv'oted in the compartment of said case including shoulders adapted for cooperation against the ribs of said case and a reduced for 'fard head portion provided with a recess therein which projects through saidjforward opening between the ribs.
2. In a latch structure'of the class described i a case providing a compartment therein, a hoolr including a body portion having a forwardly extending reduced head provided with a recess therein and a rearwardly extending reduced handle, means pivotallyv mounting the hook within the case so vthat the forward end head and rear handle portion thereof extend respectively through the forwardy and rear ends of said case, said body portion of the hook being formed to engage the casel when a pull is exerted on the head of the hook to draw it outwardly of the case. S. ln a latch structure of the class describedthe combination of a casing portion including al pair of sections provided with upper and lower inwardly extending flanges thereon, means lconnecting the casing portions sothat the flanges are in abutment toV provide a compartment between said sections said casing sections rovidinff inwardly projecting lugs with a pin supported therebetween, a bolt pivotally mounted intermediate its ends upon said pin so that the same in engagement with said inwardly projecting lugs whereby to support the bolt in` i stable relation within said compartment to prevent lateral sway thereof. l' t ln a latch structure of the class de-v scribed a casing including `a compartment,
and a hoek pivoted intermediate its ends in said compartment, said hook including a forward renuced head portion having a recess upwarciy therein and converging upper andl lower surfaces, ysaid hook and casing includcooporating shoulders adapted to come into engagement with each other when force is applied to t ie hook tending to withdraw thee 'from the-casing. 5.: ln a latchstructure a casing having a compartment therein, a hook memberl pivoted between it ends in said compartment, )the Vcasingat opposite ends thereof having' openings therethrough to the compartment, said hoolr member having a hoolr head on one end thereof extending through one opening at an Y end of thecasing, and having a handle at its opposite end extendingv through the other end opening of the casing, an L-sha-ped detent pivoted on the casing having a portionAvv adapted to engage ythe hoolnentirely within the compartment torhold the hookfin Va ioclring position, said detent when so positioned having a short extension pro`ecting from the casing forrnger engagement vto release the detent yfrom its locking relation with the hook.