US2837364A - Lock - Google Patents

Description

June 3, 1958 M. LOEB I 2,837,364

LOCK

Filed March 2, 1955 2 Sheets-Sheet 1 5o a 42 43 l iq. 5. i 12 INVENTOR. q 48 47 MORRIS LOEB /5l 5 BY N M I ATTORNEY June 3, 1958 M. LOEB 2,837,364

LOCK

Filed March 2, 1955 2 Sheets-Sheet 2 INVENTOR. MORRlS LOEB "Wm/ w ATTORNEY United States LOCK Morris Loeb, New York, N. Y.

Application March 2, 1955, Serial No. 491,733

3 Claims. (Cl. 292-228) This invention relates to locks in general, and more especially to locks for screen doors, kitchen doors and the like.

Among the objects of the present invention it is aimed to provide an improved door lock characterized by a disk fixed to rotate with the lock handle which is normally but yieldably anchored in a strike engaging position by a spring means. i

It is still another object of the present invention to provide an improved lock characterized by two cooperating disks, one disk fixed to rotate with the lock handle which is normally but yieldably anchored in a strike engaging position by a spring means, and the other disk rotatable into anchoring position of such first disk in turn to anchor said first disk against rotation and thereby anchor said lock from clearing the strike when once brought into locking engagement with the strike.

It is still another object of the present invention to provide an improved lock characterized by a disk fixed to the lock handle which is normally but yieldably anchored in strike engaging position by a spring means which can be manufactured at low cost and be installed at low cost not only due to the minimum amount of labor, but also due to the unskilled labor required.

These and other features, capabilities and advantages of the present invention will appear from the subjoined detailed description of specific embodiments thereof illustrated in the accompanying drawings, in which Figs. 1 to 16, inclusive, are illustrative of one embodiment, Fig. 1 being an end elevation of the lock in position on a door and a strike in position on a door frame partly broken away and in section.

Fig. 2 is a top plan view of the lock casing, intact, but removed from the door and handle.

Fig. 3 is an end view of the lock casing shown in Fig. 2.

Fig. 4 is a bottom plan of the casing with the cover alone removed.

Fig. 5 is a section on the line 5-5 of Fig. 4.

Fig. 6 is a bottom plan of the casing with the cover and two main disks removed.

Figs. 7 and 8 are a top plan and an end elevation of the larger of the two main disks.

Figs. 9 and 10 are a top plan and an end elevation of the smaller of the two main disks.

Figs. 11 and 12 are a top plan and an elevation of the cover for the casing.

Fig. 13 is a side elevation of the strike.

Fig. 14 is a section on the line 1414 of Fig. 13, and Fig. 15 a section on the line 15-15 of Fig. 14 of the strike illustrated in Fig. 1.

Fig. 16 is a perspective of the spring shown in Fig. 15.

Fig. 17 is a bottom plan of a second embodiment of the casing with the cover and two operative disks removed.

Fig. 18 is a top plan and Fig. 19 a side elevation of a third embodiment of the casing showing a different type of smaller disk.

In the embodiment shown in Figs. 1 to 16, inclusive, such as illustrated in my copending applications for patent Ser. Nos. 479,733 and 479,734, both filed January 4, 1955, and Ser. No. 482,093, filed January 17, 1955, now Patent Nos. 2,721,752, 2,721,753 and 2,721,754, respectively, all dated October 25, 1955, there is shown a door frame 1 having a recess 2 into which extends the part 3 of the bracket 4 secured to the outer face of the frame 1. In the present instance the bracket 4 has a flange 5 fcrming a limiting stop for the flange 6 of the housing 7 of the lock. Adjacent the flange 5, there is secured the strike 8 illustrated more or less in detail in Figs. 12 to 16, inclusive, and in myPatent No. 2,721,754 aforesaid. This strike 8, see Figs. 12 to 16, consists essentially of a casing 9 having a bridge 10 and two wall portions 11 and 12 spaced from one another to form the opening 13. The strike bar 14 normally engages the inner faces of the wall portions 11 and 12, with the ends of the bowed spring 15 engaging the ends of the strike bar 14 and the convex intermediate portion of the spring 15 resting on the bridge 16.

The housing 7 and its associated parts now to be described in practice are so fitted to the door that in closed position of the door when the nose 16 of the wing handle 17 engages the strike bar 14 as shown in Fig. l, the flange 6 will snugly engage the flange 5 and thus prevent rattling of the door caused by the wind or the like.

Through the walls 13 and 19 of the housing 7, the conventional openings are formed to receive the main square shank 20 of the lock which in the present instance is frictionally secured to, or press fitted into, the hub 21 of the knob handle 22, and extends into the extended recess 23 in the hub 24 of the wing handle 17. In the hub 24 there is providedan opening in communication with the recess 23 to receive the set screw 25 in turn to engage the shank 2t and anchor it in the wing handle 17.

The shank 20 also extends through the casing 26 which contains the elements constituting the main part of the present invention.

The casing 26, as shown in Fig. 2, has two small screw openings 27 and 28 spaced from one another with an intermediate large opening 29 disposed between the two openings 27 and 28. an arcuate opening 30. The casing 26, see Fig. 6,.has

an annular recess 31 having two outer narrow arcuate channel portions 32 and 33 terminating in the outer shoulders 34 and 35, respectively, and a wide arcuate channel portion 36 having two inner shoulders 37 and 38 and continuing into the channel portions 32 and 33. The large channel portion 36 receives the coil spring 39 with its ends tensed between the shoulders 37. and 38.

The large disk 48, see Figs. 7 and 8, has a square central opening 41 to conform to the shape in cross section of will engage and compress the spring 39, in turn so that when the handle 17, 22, is released, the spring 39 will cause such handleto return to its normal, neutral position, where the ends of the spring 39 will engage the shoulders 37 and 38. In order properly to position the disk 40, the face 44 of the casing 26 is depressed relative to the face 45. The depressed face 44 extends over into the annular channel 46, which channel 46 receives the small disk 47 shown in Figs. 9 and 10. The small disk 47 is provided with a projection 48 which extends into the arcuate opening 30 and is also provided with v a central circular opening which receives the annular raised portion 49. The opening 28 is positioned centrally of the raised annular portion 49.

In addition, the casing 26 also has The small disk 47 is provided in order to anchor the large disk against rotation when desired. For this purpose the large disk 47 is provided with an arcuate recess and the small disk with an arcuate recess 51, the arcuate recess 50 being large enough to clear the small disk 47 and receive it when the recess 50 is positioned in alinement with, or rather as a continuation of, the disk '47, the position shown in Fig. 4. Then, when the projection 48 is engaged and the small disk 47 is returned, it will enter the recess 56 and anchor the large disk from rotating with the shank 20. On the other hand, the projection 48 is positioned as shown in Fig. 4, where the edge of the recess 51 clears the path of movement of the large disk 40, when the large disk 40 may turn with the shank 20. In other words, either the large disk 40 will be positioned to enable the small disk 47 to rotate into the recess 50 and anchor the large disk 40 against rotation, or the small disk 47 will be positioned to enable the large disk 40 to enter the recess 51 and thereupon rotate with the shank 20.

The face 45 extends, see Fig. 6, from the left of the annular recess or channel 36 over to the right of the recess 36 partly to surround the annular recess or channel 46. From the face 45 protrude two positioning studs or projections 52 and 53 to be received in the small orifices 54 and 55, respectively, in the cover plate 56. The plate 56 is provided with a small opening 57 in alinement with the opening 27 in the casing 26, a large opening 58 to receive the annular raised portion 49 and an intermediate opening 59 in alinement with the round opening 29 in the casing 26. The thickness of the plate 56 corresponds to the distance of the face 45 from the outer lower edge 60 of the casing 26 so that when in place the plate 56 will be flush with the edge 60 of the casing 26.

After assembling the spring 39 and disks 40 and 47 in the casing 26 as shown in Fig. 4, and then positioning the cover plate 56 on the face 45, as shown in Fig. 5, then the casing 26 so assembled is placed on the housing 7 with the openings 57, 59 and 28 in alinement with openings in the wall 18 of the housing 7 whereupon screws 61 are passed through the openings 57 and 28 into screw threaded relation with alined openings in the wall 18 and the casing 26 so secured in position.

In order to effect a frictional engagement between the disk 47 and the cover 56, the rib 62 is formed on the l cover plate 56 preferably by being depressed inwardly therefrom.

The rib is so formed in order snugly and frictionally to engage the disk 47, thereby to anchor the disk 47 'with its projection 48 either in the anchored or u'nanchored position of the lock.

Thereupon the knob 22 is secured to the shank 20 preferably by a frictional fit as aforesaid and the shank 20 passed through the walls 19 and 13, round opening 59 in the cover plate 56, square opening 41 in the disk 40, round opening 29 in the casing 26 and into the extended opening 23 to and beyond the set screw 25, and the set screw 25 then turned into locking engagement with the shank 26. In such position, if properly fitted when the door is being closed, the nose 16 will engage the strike bar 14 to deflect it until the nose 16 passes the same into the position shown in Fig. 1, when the strike bar 14 will return to its normal outer position where it will hug the face 63 of the nose 16 and anchor the flange 6 against the flange 5, see Fig. l. Thereupon when the projection 48 is in that end of the slot 30, the position shown in Fig. 4, either the wing handle 17 or the knob handle 22 may be turned to cause the nose 16 to clear the strike bar 14 and the door then opened. However, when it is desired to lock the door, then the projection 48 will be moved part way or fully to the other end of the slot 30, intermediate the width of the casing 26, see Fig. 2, when the disk 47 will move into the recess 50 of the disk 40 and anchor it against rotation and thereby in turn anchor the shank 20 against rotation and therewith anchor the handles 17 and 22 from rotation.

The embodiment shown in Fig. 17 differs primarily from the embodiment shown in Figs. 2 to 10, inclusive, in that the arcuate spring 39 is replaced by two straight springs 64 and 65 and the casing 66 is provided with two straight recesses 67 and 68, respectively, to receive the springs 64 and 65. The recesses 67 and 68 in the present instance are shown as inclined to one another with their inner ends spread apart and communicating with the short arcuate recesses 69 and 70, respectively, the inner ends of the springs 64 and 65 abutting against the shoulders 71 and 72, respectively, at the inner ends of the recesses 67 and 68 where such recesses communicate with the arcuate recesses 69 and 70. Disks, such as the disks 4t and 47, shown in Figs. 7 and 9, could be used with this embodiment in which case the projections 42 and 43 would be positoned in and travel in the arcuate recesses 69 and 70, respectively, and the projection 48 be positioned in and travel in the arcuate recess 73.

The embodiment shown in Figs. 18 and 19 differs from the embodiment shown in Figs. 2 to 10, inclusive, in that the disk 74 in this instance has an arm 75 extending through the slot 76 in the side wall 77 of the casing 78. At the end of the arm 75 there is formed the projection 79 which extends upwardly along the side wall 77. In the embodiment of Figs. 2 to 10, inclusive, on the other hand, the projection 48 extends up through the outer main wall 89 of the casing 26.

The provision of the shoulders 34 and 35 at the inner ends of the arcuate channels 32 and 33, respectively, serve positively to prevent the large disk 40 from overturning and possibly impairing the lock, and particularly the spring 39.

It is obvious that various changes and modifications may bemade to the details of construction without departing from the general spirit of the invention as set forth in the appended claims.

I claim:

1. In a lock, the combination of a casing, a main disk clockwise and counterclockwise rotatably mounted on an axis in said casing relative to an intermediate locking position and having an angular opening therethrough, projections extending from said disk, spring control means engaging said projections and yieldably urging said disk into said intermediate locking position and normally anchoring said disk against rotation in said intermediate locking position, a shank having an angular cross section to fit said angular opening and thereby rotate with said disk, a handle at one end of said shank and a strike bar engaging nose and handle at the other end of said shank, said strike bar engaging nose disposed in locking position when said disk is in said intermediate locking position, said casing having recessed means to receive and confine said spring means, two inner shoulders at the ends of said recessed means engaged by said spring means in said intermediate locking position, there being extensions of said recessed means in said casing, and two outer shoulders at the ends of said extensions cooperating with said projections to form limiting stops for the rotation of said main disk, one of said projections adapted to engage and follow the engaged end of said spring means while travelling in said recessed means whereby the rotation of said main disk in either angular direction will compress the ends of the spring means engaged.

2. In a lock, the combination of a casing, a main disk clockwise and counterclockwise rotatably mounted on an axis in said casing relative to an intermediate locking position and having an angular opening therethrough, projections extending from said disk, two straight springs engaging said projections and yieldably urging said disk into said intermediate locking position and normally anchoring said disk against rotation in said intermediate locking position, a shank having an angular cross section to fit said angular opening and thereby rotate with said disk, a handle at one end of said shank and a strike bar engaging nose and handle at the other end of said shank, said nose disposed in locking position when said main disk is disposed in said intermediate locking position, there being two straight recesses in said casing to receive and confine said straight springs with two of their adjacent ends spaced from one another and positioned adjacent opposite sides of said main disk, two inner shoulders at the ends of said straight recesses engaged by said springs in said intermediate locking position, there being arcuate extensions of the spaced ends of said straight recesses, and two outer shoulders at the ends of said extensions cooperating with said projections to form limiting stops for the rotation of said disks, one of said projections adapted to engage and follow the end of one of said straight springs while travelling in one of said straight recesses and compressing the spring engaged whereby the rotation of said main disk in one angular direction will compress one of said straight springs and the rotation of said main disk in the opposite angular direction will compress the other of said straight springs.

3. In a lock, the combination of a casing, a main disk clockwise and counterclockwise rotatably mounted on an axis in said casing relative to an intermediate locking position and having an angular opening therethrough, projections extending from said disk, arcuate spring control means engaging said projections and yieldably urging said disk into said intermediate locking position and normally anchoring said disk against rotation when in said intermediate locking position, a shank having an angular cross section to fit said angular opening and thereby rotate with said disk, a handle at one end of said shank and a strike bar engaging nose and handle at the other end of said shank, said nose disposed in locking position when said main disk is disposed in said intermediate locking position, said casing having a main arcuate recess to receive and confine said spring, two inner shoulders at the ends of said arcuate recess engaged by the ends of said arcuate spring in said intermediate locking position, there being arcuate extensions of said main arcuate recess in said casing and spaced from one another, two outer shoulders at the ends of said arcuate extensions cooperating" with said projections to form limiting stops for the rotation of said main disk, one of said projections adapted to engage and follow one of the ends of said spring while travelling in said main arcuate recess whereby the rotation of said main disk in one angular direction will compress the spring from one end of the spring and the rotation of said main disk in the opposite angular direction will compress the spring from the other end of the spring, a locking disk rotatably mounted in said casing on an axis parallel to the axis of rotation of said main disk and parallel to said main disk, said main disk and locking disk having recesses formed therein and extending inwardly from their peripheries, said locking disk having a projection extending through said casing for manipulation and rotatable actuation by said projection in one position to position the recess of said locking disk to clear the rotatable path of movement of said main disk and into another position to position the unrecessed portion ofsaid locking disk in the recess of said main disk in the area between the free ends of said arcuate extensions and thereby in the rotatable path of movement of said main disk to anchor said main disk against rotation, and a cover for said casing having an annular shoulder frictionally engaging said locking disk normally to anchor it against accidental displacement from the position in which it is set.

References Cited in the file of this patent UNITED STATES PATENTS 1,974,622 Moore Sept. 25, 1934 2,119,866 Milligan June 7, 1938 2,160,301 Baume May 30, 1939 2,234,912 Falk Mar. 11, 1941 2,499,948 Egor Mar. 7, 1950 2,733,089 Grevengoed Jan. 31, 1956

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