US2601775A - Closure lock mounting arrangement - Google Patents

Description

y 1952 D. N. JEWETT ET AL 2,601,775

CLOSURE LOCK MOUNTING ARRANGEMENT Original Filed Sept. 7. 1949 2 SHEETS-SHEET 1 ZSnnentor 44 ,Dea eJZJE-wef/ 7517c 178606;?

f fl y (Ittomeg 5 y 1952 D. N. JEWETT ETAL 2,601,775

- CLOSURE LOCK MOUNTING ARRANGEMENT Original Filed Sept. 7. 1949 2 SHEETSSHEET 2 Snventor Jew @JZ. cjwe/z f/c 6! 5. rifewe/f al/$424+ the bolt 38 slide to and fro through an aperture 45 in a front or mounting plate 46 by which the lock I8 is secured to the door |3. The front 46 is in the form of an elongated plate having thickened portions or internal bosses 41 at its upper and lower ends containing pivot pins 48 on which are mounted swinging discs or tabs 49 having threaded holes 58 therein. The lock is inserted into the opening II. with the swinging discs 49 swung inward out of the Way, into the position shown in dotted lines at the lower end of Figure 2. When the lock has been thus inserted, the fasteners 48 are rotated by means of a screw driver placed in their slots rotating the discs 49 180 until their holes 58 coincide with the corresponding holes 52 in the door edge wall I2. The discs 49 are fixedly secured to the pivot pins 48 by a splined connection 53 therebetween, whereas the pins 48 are rotatably mounted in their holes 54 in the thickened portions 41 to enable this swinging of the discs 49 to be done. When the holes 50 have been thus aligned with the holes 52, fasteners 55 are then threaded through the holes 52 into the threaded holes 58, securing the lock front 46 firmly in position. The lock front 46 is provided with tapered bosses or lugs 56 which enter correspondingly tapered sockets 51 in the case half 3| and are secured in position by pins 58 entering holes 59 which are partly within the lug 56 and partly within the case half 3| (Figure 2).

In order to prevent movement of the bolt 38 to and fro except in response to the rotation of the rotary element 22 and cam by means of the key (not shown), the lock is provided with a tumbler pin or bolt dogging pin, generally designated 68 (Figure 4) and having a thickness corresponding to the' width of the slot 39 in the bolt 38 with clearance sufi'icient to permit it to moveup and down therein. The element 68 has a downwardly projecting portion 6| which is relieved as at 62 to provide smoothness of operation and at its lower end is provided with outwardly projecting ribs 63 which engage the opposite sides of the cavity and surface 36 (Figure 3.). The element 68 is also provided with a "laterally extending lug 64 which is of rectangular cross-section and which is adapted to fit into either of a pair of rectangular-shaped detent notches 65 or 66 (Figure 2) in an elongated slot or recess 61 in the side wall 68 of the case half V The notches 65 and 66 are separated from one another by a ridge or barrier 69 (Figure 2). A spring 10 inserted between the bottom of the notch 39 and the top of a recess 1| in the bolt dogging element 60 urges the latter upward so that when it is released by the cam 25, it willbe forced into one of the notches 65 or 66. The case halves 3| and 32 are provided with aligned threaded holes 12 and 13 (Figure 3) for receiving the correspondingly threadedportions |,9 of the cylinders |6 and I1.

Operation In the operation of V the, invention, let it be assumed that the cylinders l6 and H are separated from the lock H! but that the front 46 has been secured thereto by the pins 59 and interfitting lugs 56 and sockets 51. The discs 49 are turned toward the lock case 30, as shown, for the lower disc, by the dotted lines in Figure 2. The lock is then inserted through the opening II in the door edge wall l2, whereupon a screw driver is inserted in the slot 5| to rotate the pins 48 and discs 49 until fasteners 55 may be threaded into the aligned holes 58 and 52 as explained above. This brings the holes 12 and 13 opposite and into alignment with the holes l4 and I5 respectively in the door I3, whereupon the cylinders |6 and I! may be threaded into the holes 12 and 13 and secured in position by the set screws 2| entering one of the notches 26 in each cylinder IE or H. The casing halves 3| and 32 are assembled by sliding them together along their dovetail connections 33 and 34 until they are properly aligned with one another, whereupon they are held together by the pins 58 which also lock the front 46 to the case 30.

In order to operate the look, a key is inserted in the key slot 23 and, by moving the tumblers out of the way, is thereby permitted to swing the cam 25 so that it enters the upper end of the bolt notch 39 (Figure 2), pushing the bolt dogging element or tumbler pin 60 downward as it swings in a clockwise direction (Figure 6) and at the same time moving the bolt 38 to the left when the projection 64 has cleared the notch 65 and passes over the barrier 69. When the bolt reaches its extreme position to the left so as to lock the door (Figure 7) the cam swings upward out of the notch 39 and the spring 10 urges the tumbler pin or bolt dogging element 68 upward until its projection 64 enters the notch 66. The bolt 38 is thus held in its advanced position and cannot be retracted by inserting a screw driver in the crack between the door and door frame since this is prevented by the interengaging projection 64 on the tumbler pin 50 and the notch 66 into which it fits (Figure '7) M odifioation The modified lock, generally designated 80, shown in Figures 8 to 12 inclusive, s generally similar in construction and operation to the lock shown in Figures 1 to 7 inclusive and similar parts are designated with the same reference numerals. The lock 80, however, is intended for smaller doors and is therefore made in smaller sizes than the lock l0. Consequently, .the lock case 8| is made in a single piece rather than in extruded inter-fitting halves as in the instance of the case halves 3| and 32 of the lock"). The case 8| is provided withupwardly and downwardly extending ears 82 which are provided with threaded holes 83 aligned with holes 84 in the front 85 and secured thereto by fasteners 86. The upper and lower ends of the front 85 are provided with swinging tabs or discs 49 (one only being shown) similar to those in Figures 1 to 3 inclusive and similarly mounted on pivot pins 48 adapted to be rotated by a screw driver inserted in the slot 5|. Installation by swinging these tabs 49 and threading fasteners into their holes is accomplished in the manner previously described.

The bolt 81 in the lock 80 is generally similar to the bolt 38 of Figure 5 in that it has a similar notch 39 and a similar but differently inclined bore 4| also containing a loosely rotatable hardened steel pin 43. The bolt 81 is provided with an upper extension 88 at the top thereof and an arcuate cut away portion89 is provided to permit free swinging of the camor cams 25, f1

The tumbler pin or bolt dogging element 90 of the lock 80 (Figure 12) is similar to the corresponding element 60 of Figure 4, except that it is provided with oppositely extending projections 64 on both sides thereof instead of on a single side. The spring is similarly mounted in the recess H and the opposite sides of the case 8| are provided with the slots 61 instead of only on one side as in the lock 10. The slots 61 of the lock 80 are similarly provided with notches B5 and E6 and have intervening projections 69. The construction of the cylinders l6 and H and their mounting is identical with that previously described, and hence requires no repetition.

In the operation of the modified lock 80 shown in Figures 8 to 12 inclusive, the lock is installed in the manner described in connection with the construction thereof and as also previously described in connection with the operation of the lock I0. The lock is operated, as before, by inserting the key (not shown) into the key slot 23. rotating the rotary element 22 and cam 25 in a clockwise direction, as before. This pushes the bolt dogging element 90 downward, unseating both of its projections 54 from their corresponding notches 65 in the opposite side walls of the case 8| and lifts the element 90 over the projections 69, at the same time pushing the bolt 81 to the left into its extended or looking position. When the bolt 81 has been fully extended, the wings or projections 64 move upward into the forward notches 66 and the cam moves upward out of the bolt notch 39 in a manner analogous to that shown in Figure 7 for the lock 10.

What we claim is:

1. A closure lock adapted to be inserted in an opening to a chamber in a door edge wall and including a front member adapted to fit into said opening, a hollow lock case secured to said front member. a lock bolt reciprocably mounted in said case and projectable through an aperture in said front member, bolt operating mechanism disposed within said lock case, and an outwardly extensible mounting element movably mounted on said front member and shiftable beyond said opening and behind said wall.

2. A closure lock adapted to be inserted in an opening to a chamber in a door edge wall and including a front member adapted to fit into said opening, a hollow lock case secured to said front member, a lock bolt reciprooably mounted in said case and projectable through an aperture in said front member, bolt operating mechanism disposed within said lock case, and an outwardly extensible mounting element movably mounted on said front member and shiftable beyond said opening and behind said wall, said mounting element having a tool-engaging portion extending through said front member.

3. A closure lock adapted to be inserted in an opening to a chamber in a door edge wall and including a front member adapted to fit into said opening, a hollow lock case secured to said front member, a lock bolt reciprocably mounted in said case and projectable through an aperture in said front member, bolt operating mechanism disposed within said lock case, and an outwardly extensible mounting element pivotally mounted on said front member and shiftable beyond said opening and behind said wall, said mounting member having a pivot extending through said front member, said pivot having a tool-engaging portion thereon for shifting said mounting element.

DEANE N. JEWETT.

RICHARD S. JEWETT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,079,121 Giese Nov. 18, 1913 1,793,081 Goddard Feb. 17, 1931 2,327,070 Schlage Aug. 17, 1943 FOREIGN PATENTS Number Country Date 100,906 Great Britain July 2'7, 1916 343,354 Great Britain Feb. 19, 1931

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