US1904053A - Lock - Google Patents

Description

April 18, 1933. s KATZ LOCK Filed Dec. 24, 1930 l/f y@ I l l INVENTOR.

@am 45 e! ORNEY *mentes Apr. is, 1933 2 will be exem UNITED sfTATEs PATENT 'OFFICE ALIXA'DEB B. KATZ, 0I BROOKLYN, NEW' YORK LOCK i Application tiled December 24, 1980. t Serial Io. 504,571.

The invention relates to locks and is articularl directed to a latch lock for re rigerator oors and the like purposes.

The object of this invention is to provide a lock of the character described, wherein a bolt is retracted against the pressure of a projecting spring highly improved means for retracting the bolt, provision bemgmade for eliminating the loose connection between the bolt and the retracting means, such as occurs in locks of similar type now in use.

A further object of this invention is to provide a neat, compact and rugged device of' the character described, which shall be relatively inexpensive to manufacture,lcomprise few and simple parts, easy to manipulate, be positive and smooth in operation, and yet practical and efficient to a high de ee.

Other objects ofx this invention wi lin part be obvious and in part hereinafter pointed out.

Thev invention accordingly consists in the features of construction, combinations of elements, and arrangement of `parts which plied in the construction hereinafter described, and of which the scope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a horizontal cross-sectional view of a lock embodyingthe invention applied to a refrigerator door or the like;

Fig. 2 is a cross-sectional view taken on line 2--2 of `ttig.. 1

Fig. .3 is a cross-sectional view taken on line 3-3 of Fig. 1; and

Fig. 4 is a partial plan view of a modified construction of the strike and illustrating the engagement between the Referring now in detail to the drawing, 10 designates a lock' embodying the invention comprising a bolt mounting mechanism 11, fastened to a refrigerator door 12 and including a bolt 13 adapted to engage a strike or keeper A14 mounted on the door jamb 15. For the purpose of illustration only, the lock is shown applied to a refrigerator bolt and strike.

wherein provided with a portion `16 overlapping the edge of the door jamb 15.

The keeper v14 com rises a member 16 having perforated ears 1 adapted to receive any suitable fastening means for attaching said member 16 to the door jamb. Said member 16 further comprises 'a portion 18 extending perpendicularly to said door jamb, and having a ribbed or ridged surface 19. A pair of parallel side walls 20 extendfrom the ends of said ortion 18. A strike member 21 may be iixedp to the portion 18, said member 21 being formed with a ribbed or ridged outer surface 23 adapted to engage the ribbed portion 19, in a plurality of adjusted positions. A screw 24 extending through the slotf22 is adapted to be screwed to a screwv threaded opening 25 formed in said )portion 18, whereby the member 21 may be Xed to the portion 18 in various positions. The mechanism 11 comprises a housing 28 formed with perforated ears 29, adapted to receive any astening means for attaching said housing to the door 12. The housing `is providedv with a circular openin at the front thereof and with -a prefergbly s uare shaped opening 31 at the rear thereo for the pur ose hereinafterappearing.

Shda ly mounted within said housing is a bolt 13, having a cylindrical head 34 extending through said opening 30, and formed with a cylindrical reduced portion 35 at the rear thereof, and with a square-shaped shank 36 extending from said cylindrical portion 35 and slidably received within the square-shaped opening 31. coilcompresthe door 12 is sion spring 38, vextending about the cylindrical port1on'35 and the square shank 36, is interposed between the rear wall 28a, of the housing 28 and the shoulder 39 formed at the rear ofthe head 34. For the purpose hereinafter appearing, formed with a longitudinal rack on the outer side thereof.

. Said head 34 is further provided with an inner steeply inclined latch portion 40 and portion with an outer inclined portion 41, the latter .x

preferably having a slight inclination, and adapted to engage the inner edge 4,2 of the the head 34 of the bolt isk with a horizontal slot 22 vand soy . Fig.

vided with a head 43 of the strike member 21. 'It will now be noted that'the spring 38 normally urges the bolt into engagement with'tlie strike member. Due to the inclination of the outer surface- 41, a force results for pressing the door tightly against the door jamb. As shown in 4, t e keeper maybe provided with a head 50 having an inner inclined or bevelled surface 51 for engaging the edge 52a to a bolt 13a pressed towards the keeper by means of a spring in the manner shown in Fig. 1. Due to the inclination of the surface 51 the door is normally urged to tightly closed'position, since the spring tends to push the bolt toward the keeper and the edge r52 of said bolt will tend to move to a point on said surface 51 which is closer to the door jamb.

Means is provided to retract the bolt 13 against the pressure of spring 38, as for example, when opening the door. To this end, the housing 28 is formed with a pair of parallel spaced wall portions 39 formin a slot or opening 39a therebetween and pivotally mounted on said walls: 39 is a retracting member 44z having a portion 40a extending between said walls and pivoted on a transverse pin 41a. Said member 44 is also prohandle portion 45 disposed on the outside of the housing and extending longitudinally of the lock. Extending from said portion a of said member 44 and projecting into the casing'is a segmental geared portion 46 having gear teeth 47 adapted to c0- 'operate with the teeth of said rack portion 50. The gear teeth 47 and 5() are designed for constant contact so as to prevent any 4ing or .casing 28 is an extension looseness or lost motion between the retracti member and thebolt.

t will now be seen that an outward pull on the handle would cause the bolt 13 to be retracted into the housing against thev pressure of the compression spring 38 for unlocking the door. On release of the handle 45 the s ring 38 will project the. bolt 13, and due to t e interengagement of the gear teeth 50 and 47, will rotate the retracting member 44 back to its normal position. The segment 46 is provided with a strike the portion 53 o the bolt 13 w en the said bolt has reached the full projected position thereof, whereby the retracting member 44 may only be rotated by the spring 38 a predetermined angle. Extending from the hous- 55,formed with a boss 56 having an opening 56a adapted to receive the usual pin 57 extending to the inner side of the refrigerator door for openingthelockfromwithintherefrigerator. The handle 45 is provided with 'a rear extension 59 `overlying the boss 56 whereby a lpush 'on the pin 57 will cause the outer end 60 thereof to engge the rearIplolectim'l'59.of the handle for retracting y the bolt 13 and opening the door from the inside. a 'I 'he contacting por-` portion 52 ada ted to` 'Leo-aout tions 52, 53 are so arranged that they will contact and stop rotation of the handle 45 before the portion 59 reaches the boss 56. Accidental breaking or cracking of the handle due to sudden impact between ortion 59'and boss 56, is thus revented. T 'e housing 28 is further forme with a pair of ears 65, 66 extendin from parallel with a 'gned openings 65a, and 66a, retracting member 44 is formed with an ear 68 having an opening 69 aligned with said openings a and 66a and adapted to register therewith sition. An ordinary-padlock may thus be used to prevent opening movement of the handle 45, the U-shaped portion of the padlock being passed through the aligned or registerin openings, 65a, 69 and 66a, to eect the loc in engagement.

It will tus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well when the bolt is in projecting po-I walls 39 and formed and the adapted to meet the conditions 0f practical A changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: l

1. A latch comprising a casing, a springprojected bolt movable in said casing, said bolt having a rack, bolt-retracting means comprising a handle pivoted for movement toward and away from said casing and a gear' segment operated by said handle and meshing with saidrack, and a stop on said gear segment adapted to engage said bolt in the projected position of the latter to limit positively the movement of said handle toward the casing when the bolt is in projected the Ibolt is in projected position.

3. A latch comprising a casing, a springprojected bolt slidable in said casing longitudinally thereof, said bolt having a rac i bolt-retracting means comprising la handle pivotedfor movement toward and away from said casing and a'. gear segment operated by said handle and meshing with said -rack, a shoulder on the bolt' adjacent seid rack, and a stop on said gear segment adjacent the :,oogoss vteeth thereof adapted to engage said shoulder in the projected position o f the bolt to limit positively the movement of said handle toward the casing when the bolt is in projected position. I Y

In testimony whereof I aix my signature.

ALEXANDER

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