US1959361A - Lock - Google Patents

Description

y 22, 1934' J. HOLTZMAN 1,959,361

- LOCK Fi-led Oct. 20, 1931 4 Sheets-Sheet l Mambo/u Y HN H LTzmu 351 fll'tozneagj May 22, 1934. H T M N 1,959,361

LOCK

Filed Oct. 20, 1931 4 Sheets-Sheet 2 67 46 II II I All J me 'nm 6 INVENTOR lfoau HoLTzMw ATTORNEY y 2, 1934. J. HOLTZMAN 1,959,361

7 LOCK Filed Ocp. 2Q, 1931 4 Sheets-Sheet 3 93 4 INVENTOR Juno H01. zmw BY ATTORNEY MayZ 3 i HOLTZ MAN 1,959,361

' LOCK Filed Oct. 20. 1931 4'Sheets-Sheet 4 mvzu-roR Joan Hon mm,

BY ATTORNEY Patented May 22, 1934 UNITED STATES LOCK John Holtzman, New York, N. Y.

Application October 20,

18 Claims.

This invention relates to new and useful improvements in looks.

The invention has for a main object the construction of locks which are of simple durable form, dependable in use and eflicient in operation,

and which can be manufactured and sold at a' reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:-

Fig. 1 is an elevational view of a lock constructed according to this invention.

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1 with the lock shown upon a door.

Fig. 3 is a bottom elevational view of the lock with the base plate of the casing removed.

Fig. 4 is an elevational view of the keeper.

Fig. 5 is an edge elevational view of Fig. 4.

Fig. 6 is a detailed view of the bolt of the lock.

Fig. '7 is an elevational view of a lock constructed according to a modification of the invention. a portion thereof being broken away to illustrate interior parts.

Fig. 8 is a sectional view of the lock shown in Fig. '7 with the bolts extended, taken on the line 8-8 of Fig. 9.

Fig. 9 is a sectional view of the lock taken 0 the line 9-9 of Fig. 8.

Fig. 10 is a fragmentary sectional view taken on the line 10-10 of Fig. '7.

Fig. 11 is a fragmentary sectional view taken on the line 11-11 of Fig. '7.

Fig. 12 is a perspective view of a member used in the lock.

Fig. 13 is a perspective view of a slide plate used in the lock.

Fig. 14 is a longitudinal view of a modified form of lock.

Fig. 15 is a bottom view of a lock constructed according to another embodiment of the invention.

Fig. 16 is a view similar to Fig. 15 but showing the bolts retracted.

Fig. 17 is a sectional view taken on the line 17-17 of Fig. 15.

Fig. 18 is a sectional view taken on the line 18-18 of Fig. 15.

Fig. 19 is a sectional view taken on the line 19-19 of Fi 15. V

In the form of the invention illustrated in Figs.

1931, Serial No. 569,921

1-6 inclusive, the lock consists of a casing 10 for attachment upon a door 11 and adapted to extend over the door jamb 12, and having a bottom cover. plate 17 with openings 13 for receiving hooks 14 from a keeper 15 attached upon the jamb. The top face of the casing is recessed as indicated by reference numeral 16 for ornamental purposes. The bottom of the casing is closed by said plate 17 which is removably held in position by a screw 18 which passes through a boss 19 projecting from the interior of the casing. A bolt 20 is rotatively mounted upon the boss 19 and has a pair of members 21 capable of engaging and holding the hooks 14 in one position. The bolt may also turn to a different position out of line with the openings 13. The hooks 14 have cam portions 22 adapted to act against cam portions 23 upon the members 21 so that the lock may be snapped closed by the hooks of the keeper .acting against the bolt and causing it to turn temporarily.

The keeper 15 is shown constructed with an angular base 24 attached upon the jamb by screws 25. A finger 26 projects from the bolt 20. A stop 2'7 is mounted within the casing 10 sub-- stantially in the same line as the finger 26. An arcuate member 28 is rotatavely mounted upon the casing and its ends respectively engage the stop 27 and the finger 26. This arcuate member is fixed upon a knob 29 which projects to the outer side of the lock for allowing manual opening thereof.

The door 11 is provided with the conventional tumbler lock 30 which has a flat stem 31 engageable through a corresponding opening in a rotative member 32 located upon the back plate 17 of the casing of the lock. The member 32 has an arcuate finger 33 acting against the finger 26 for the purpose of pivoting the bolt 20 upon operation of the lock 30. The stem 31 is free in the knob 29 so that the knob 29 may be selectively turned to pivot the bolt 20. Resilient means serve to pivot the bolt 20 so as to normally hold it in its locked position. I This means comprises a spring 34 attached at one end upon the finger 26 and atthe other end upon a screw 35 mounted within the casing 10. A plurality of apertures 36 are formed in the casing 10 for the purpose of attaching the'lock upon the door. A catch 3'? is provided for holding the lock in an open position whenever desired. This catch comprises a depressible plunger capable of engagement in its depressed condition with an aperture 38 formed in the bolt 20. Recesses 13 are formed within the top portion of the casing 10 for accommodating the ends of the hooks 14. A

feature of the construction of this look lies in the fact that the hooks 14 do not extend through the front of the casing 10 so that they may be viewed.

In operation of the lock the spring 34 normally pivots the bolt 20 so that the arcuate member 28 is arrested by the stop 27 and in this position the finger portions 21 of the bolt are in positions to be engaged by the hooks 14 of the keeper. When the door is closed the cam portions 22v on the hooks of the keeper engage the cam portions 23 on the bolt for the purpose of prying the bolt to its open position. The bolt automatically snaps back under the action of the spring 34 to its closed position. The door may be opened from the inside by turning the knob 29 which causes the arcuate member 28 to act against sists of a casing 40 for attachment upon a door.

and having a closed end 41 formed with non circular openings '42. 'A keeper 43 is attached upon the jamb 44 and has a closed end 45 in end contacting relation with the end 41 and formed 7 with openings 46, preferably similar to the openings 42 and aligned therewith. The face of the casing is recessed as indicated by reference numeral 47. The casing is closed at the bottom by a plate 48 held in position at one end by a flange 49 and at the other end by'a screw 50. The keeper 43 has a flange 51 disposed on one side of the jamb 44. Screws 52 and 58 serve to hold the keeper in place.

A plate '54 is slidably mountedwithin the cas ing 40. Parallel lugs'55 project from the inside of the casing 40 and serve to guide theplate 54 in its sliding motion. A' means is provided for moving the plate 54 and comprises a socket member-56' extending through a transverse elongated aperture 83 in the plate 54 and rotatively mounted on a pin 56' eccentricallyriveted ona disc 57 carried by a knob 58, rotatively mounted through the casing 40. A means is provided for holding the plate 54 in an extended or retracted position and comprises a spring 59 attached upon the bottom of the plate 54 and extended through a slot or recess 60 in one side of the stud 56. The spring 59 also functions to keep the stud 56 from turning on its axis relative to the casing 40 during extending and retraction of the plate 54.

Bolts '61 are rotatively mounted upon the bottom of'the plate '54. The rotative mounting is accomplished by -a pair of blocks 62 engaged onopposite sides of the neck portions 63 of the bolts and secured to the plate by screws'64. At the inner ends the necks'63 terminate in square heads 65. A means is provided for holding the bolts in rotative positions and comprises a fiat spring 66 attached on "the bottom of the-plate 54 and resting'against one of [the sides 'of the squared heads to hold the bolts in one rotative position when extended, or against other sides to hold them in another rotative position when retracted, thus preventng accidental turning. The front ends of the bolts61 are slidable in the openings 46 and are formed with" head portions 6'? preferably of the same shape as theopenings 46. When the heads are located within the keeper and turned they assume positions so as to prohibit longitudinal retraction. A member 68 is pivotally supported at one end 69 by the screw 50.

The other end of this member is formed with an arcuate rack of teeth 70 meshing with teeth '71 formed in the bolts 61 and extending substantially the entire lengths of the bolts. The member 68 may be pivoted to turn the bolts one way or the other against the restraining action of the spring 66. A slot 72 is formed in the member 68 and has a longitudinal rear portion 73 connect ng with an inclined front portion 74. A pintle pin '75 is riveted-and projected from the plate 54 and extends through the slot '72. Pegs '76 project from the bottom of the member 68 and ride upon the back cover 48 of the casing forming supports which allow the member 68 to travel in an arcuate path.

A socket member '77 is rotatively mounted in the back cover 48 of the casing and is formed with a slot 78 for receiving a turning stem from a tumbler lock. 'An arm 79 is fastened upon the socket '77 and carries a pin 80 which engages within, a substantially semi-circular flange on the bottom of the socket member 56 so that the plate 54 can be'moved either by the knob 58 or by the stem of the tumbler lock. Screws 81 serve to hold the casing40 upon the door 82 which works in conjunction with the jamb 44. The opening in the plate 54 through which the member 56' extends is elongated transversely and indicated by reference numeral 83. This arrangement allows for the disc 57 to turn and merely move the plate 54 longitudinally. v 7

The operation of the lock may be traced by assuming it in the condition illustrated in Fig. '7. This is the open position. The lock may be closed by moving the. plate 54 forwards. This is possible by either turning the knob 58 or by operation of the stem from the tumbler lock which will turn the socket 77. As the plate 54 moves frontwards, the bolts 61 will be extended into the keeper 43. The plate 54 will soon reach a condition in which the stud '75 rides within the inclined portion of the slot 72 in the pivoted member 68; This will cause the member 68 to move around the screw 50 as a pivot. The teeth '70, or" the member 68 being in mesh with the teeth of the bolts 61, then causethe bolts 61. to rotate so that the head portions 67 of the bolts assume a position relative to the openings 42 as indicated by the dotand dashlines in Fig. 16, that is. positions in which they cannot be retracted longitudinally. The lock is now in its completely locked position.

In the modified form of the invention illustrated in Fig. 14, a lock has been disclosed which is provided with a'casing 90 for attachment upon a door 91. This lock is used in conjunction with a keeper 92 attached upon the doorjamb-93.. The casing 90 has its end adjacent the keeper 92 closed except for openings 94 formed therein. The adjacent side of the keeper is formed with corresponding openings 95 and in addition with longi-. tudinal partitions 96 formed with openings 97. A plate 98 is'slidably mounted within the easing 96 and is guided between the lugs 99. A means is provided for moving this plate forwards or rearwards. The details of this means is not disclosed since it is identical with the means illustrated in the lock disclosed in Figs. 7-13 inclusive. It should be noted that this means includes the disc- 57 which is provided with an eccentric pin member 58. Aresilient means should also be provided in this look to hold this plate forwards or rearwards as described in the previous form of the invention. A plate 100 is mounted.- for moving transversely within the casing 90. The transverse movement is limited by pins 101 projecting from the plate and working in transverse slots 102 within the casing 90. Bolt elements 103 project from the plate and are in the form of hooks so as to be engageable within the openings 97. An inclined slot 104 is formed in the plate 100 and is engaged by a pintle pin 105 projecting from the plate 98.

The operation of the lock may be understood by considering it in the position shown in Fig. 14. This shows the lock in a partially closed position. In the event of the disc 57 being rotated further counter-clock-wise the plate 98 will move so that the pin 105 rides in the slot 104 and moves the hook portions of the bolts 103 completely into the lateral openings 97. This is the completely closed condition of the lock. The completely opened position of the lock would be the one in which the bolts 103 are completely retracted from the lateral openings 97 obtained by turning the disc 57 clock-Wise. In the open position of the lock the door 91 may be withdrawn from the keep er 97. The door may be of a sliding type so that when moved away from the jamb the bolts are completely withdrawn through the openings 95. The lock can also be used on the swinging type of door, but in said case the keeper must have openings (not shown on the drawings) on the side to allow passage of the bolts when the latter are retracted from the apertures 97.

In the modified form'of the invention illustrated in Figs. 15-19 inclusive, a lock has been shown which comprises a casing 105 for attachment upon a door in end contacting relation with a keeper 106. The adjacent ends 107 and 108 of the casing and keeper respectively are formed with similar non-circular openings 109 through which bolts 110 may pass. These bolts are provided with heads 111 adapted to be retracted into the opening in the end 107 or to be extended through the opening in the end 108 within the keeper 106 and then turned as indicated by the dot and dash lines in Fig. 19. The bolts 110 are rotatively mounted upon the carriage 112 and. have rear square heads 113. The portions of the bolts extending through the carriage are formed with teeth 114. A flat spring 115 acts against the heads 113 so as to hold the bolts against accidental turning. A transverse rack 116 is slid ably mounted in the carriage 112 and meshes with the teeth 114.

The carriage 112 is partially surrounded by a plate 117 urged in one direction by a spring 118 acting at the side of the casing 105. The spring serves to hold the carriage in slidable relation against the other side of the casing. The plate 117 is formed with a slot 119 which has a straight portion connected with an inclined portion. A pin 120 extends from the rack 116 into this slot. A resilient means is provided for holding the plate 117 in a forward or rearward condition and comprises a spring 121 coaxially mounted upon a lever 122 pivotally connected between the casing 105 and the plate. The spring serves to hold the plate end forwards as shown in Fig. 15 or rearwards as shown in Fig. 16. In each of these conditions it is passing the dead center line and therefore maintains it.

A means is provided for moving the plate to its forward or rear position and comprises a stud 123 mounted or riveted upon the crank arm 124 located within a recess 105' in the front wall of the casing 105 and fixed upon a knob rotative in the casing 105. The stud 123 carries a rotative socket member 126 having a semi-circular arm 131 in one direction the pin 129 moves thesocket 126 in an arc of 180, and the pin 123 moves in a transverse slot 123 in the plate 117 to move the latter forwards. The rod 127 keeps the socket from turning relative to the casing, but allows rotation relative to the pin 123 so that the semi-circular collar 130 is always parallel to the side wall of the casing. Upon further rotation of the arm 131 the pin 129 moves out from the semi-circular flange 130, leaving the plate 117 forwards, and allowing completion of a complete revolution to permit withdrawal of the key from the cylinder look not shown on the drawings.

The operation of the lock may be traced by assuming it in the condition shown in Figs. 15 and 17. To open the lock, the knob 125 or the tumbler lock stem 134 may be turned to cause moving of the plate 117 to its rear position;' As this plate moves to the rear position, the slot 119 will cause the transverse motion of the rack 116. The end of the rack 135 will move out from a recess 136 in the casing 105 so that the carriage 112 is free to move rearwards. As the rack moves transversely, tht bolts 110 will be rotated so that their heads are in line to pass through the similar openings in the end of the keeper. Further rearward motion of the plate 117 causes the end of the slot 119 to draw upon the peg 120 and draw the carriage 112 rearwards. The bolts 110 being mounted on the carriage, also move rearwards until they reach a position as shown in Fig. 16 with their outer ends flush with the end of the lock.

The lock may be locked from its opened position shown in Fig. 16 by turning the knob, 125 or the tumbler lock stem 134 to cause theplate 117 to move to its front position. Due to the frictional stress of the plate 117 against the carriage 112, the carriage will simultaneously move together with the plate 117 as a single unit until the front of the carriage abuts against the closed Thereafter merely the,

end of the lock casing. plate 117 will move forward and the slot 119 acting in conjunction with the pin 120 will move the rack 135 laterally until its end engages into the recess 136. that as the carriage 112 moves towards theiront, the bolts 110 will become extended from the openings in the end 107 of the casing. Furthermore" the bolts 110 will be rotated when the rack 1 35 moves laterally to its position wherein its end engages within the recess 136.

While I have illustrated and described my invention with some degree of particularly, I realize that in practice various alterations therein may be made. I therefore reserve the right and privilege of changing the form of the details of construction or otherwise altering the-arrangement of the correlated parts without departing from the spirit or the scope of the appended claims. r

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:-

1. In a lock, a casing for attachment on a door and having a closed end formed with non-circular Attention is called to the fact I openings for alignmentwith similar openings in a keeper for attachment upon a jamb in end contacting relation with the closed end of said cas ing, a plate slidable within said-casing, means for moving said plate forwards and rearwards, resilient means for holding'the plate in its forward or rear position, bolts rotatively mounted on said plate and in the openings of the closed end of said casing, heads on said bolts of shapes similar to said openings and adapted, when extended, and turned, to assume locked positions within the keeper, a member pivotally mounted within said casing and having a rack of teeth engaging teeth formed in said bolts and also having a slot with a straight rear portion and an inclined front portion, and a pintle pin projecting from said plate and engaging within said slot.

2. In a lock, a casing for attachment on a door and having a closed end formed with non-circular openings for alignment with similar openings in a keeper for attachment upon a jamb in end contacting relation with the closed end of said casing, a plate slidable within said casing, means for moving said plate forwards and rearwards, 25-

resilient means for holding the plate in its forward or rear position, bolts rotatively mounted on said plate and in the openings of the closed end of said casing, heads on said bolts of shapes similar to said openingsand adapted, when extended and turned, to assume locked positions within the keeper, a member pivotally mounted within said casing and having a rackof teeth engaging teeth formed in said bolts and also having a slot with a straight rear portion, and an inclined front por- 35' tion, and a pintle pin projecting from said plate and engaging within said slot, and means for holding said bolts resiliently against rotation.

3. In a look, a casing for attachment on a door and having a closed end formed with non-circular openings for alignment withsimilar openings in a keeper for attachment upon a jamb in end contacting relation with the closed end of said casing, a plate slidable Within said casing, means for moving said plate forwards and rearwards, resilient means for holding the plate in its forward or rear position, bolts rotatively mounted on said plate and in the openings of the closed end of said casing, heads on said bolts of shapes similar to said openings and adapted, when extended and turned, to assume locked positions within the keeper, a'member pivotally mounted within said casing and having a rack of teeth engaging teeth formed in said bolts and also having a slot with a I straight rear portion and an inclined front portion, and a pintle pin projecting from said plate and engaging within said slot, said means for moving the plate comprising a socket member engaging in a transverse slot formed in theplate, a disc eccentrically supporting said socket member, and means for turning said disc.

4. In a look, a casing for attachment upon a door and having a closed end formed with noncircular openings for alignment with similar openings in a keeper for attachment upon a jamb in end contacting relation with said casing, a plate slidable within said casing, means for moving said plate, resilient means for holding the plate in a forward or a rearward position, a carriage slidable within said casing, bolts with teeth formed at one end thereof and rotatively mounted upon said carriage and slidably engaged in the openings in the end of said casing, heads on said bolts of shapes to engage in said openings and upon extension and turning of said bolts to prohibit retraction, a rack transversely slidably mounted in said carriage andmeshing with teeth on said bolts, and a pintle pin on said rack and engaging in a slot in said plate,'said slot having an inclined portion;

5. In a look, a casing for attachment upon a door and having a closed end formed with noncircular openings for alignment with similar openings in a keeper for attachment upon a jamb in end contacting relation with said casing, a plate slidable within said casing, means for moving said plate, resilient means for holding the plate in a forward or a rearward position, a carriage slidable within said casing, bolts with teeth formed at one end thereof and rotatively mount ed upon said carriage and slidably engaged in the openings in the end of said casing, heads on said bolts of shapes to engage in said openings, and upon extension and turning of said bolts to prohibit retraction, a rack transversely slidably mounted in said carriage and meshing with teeth on said bolts, and a pintle pin on said rack and engaging in a slot in said plate, said slot having an inclined portion, said plate partially extending around said carriage, and resilient means urging said plate and carriage laterallyso that the carriage slidably engages against the sides of said casing.

6. In a lock, a casing for attachment upon a door and having a'closed end formed with noncircular openings, a keeper for attachment upon a jamb in end contacting relation with said casing, a plate slidable within said casing, means for moving said plate, resilient means for holding the plate in a forward or a rearward position, a carriage slidable within said casing, bolts with teeth formed in one end thereof and rotatively mounted upon said carriage and slidably engaged in the openings in the end of said casing, heads on said bolts of shapes to engage in said openings and upon extension and turning of said i bolts to prohibit retraction for alignment with similar openings in a rack transversely slidably mounted in said carriage and meshing with said teeth on said bolts, and a pintle pin on said rack and engaging in a slot in said plate, said slot having an inclined portion, said rack being engage able within a recessin said casing in the extended position of said bolts.

7. In a'lock, a casing adapted to be attached to a door and having a closed end formed with an opening, a 'member slidable within said casing, means for moving said member, a bolt rotatably mounted upon said member, said bolt beingadapted to pass through said opening for combinedrotary and sliding motion, said bolt being formed at one of its ends with a fiat portion, spring means secured upon said member arranged to register with said fiat portion of said bolt for keeping said bolt against accidental rotation, and means mounted in said casing for rotating' said bolt.

8. In a look, a casing for attachment on a door and having a closed end formed with non-circular openings for alignment with similar openings in a keeper for attachment upon a jamb in end contacting relation with the closed end of said casing, a plate slidable within said casing, means for moving said plate forwards and, rearwards, resilient means for holding the plate in its forward or rear position, bolts rotatively mounted on said plate and in the openings of the closed end of said casing, heads on said bolts of shapes similar to said openings and adapted, when extended and turned, to assume locked positions within the keeper, a member pivotally mounted within said casing andhaving a rack of teeth engaging and longitudinally slidingly meshing with teeth formed in said bolts and also having a slot with a straight rear portion and an inclined front portion, and a pintle pin projecting from said plate and engaging within said slot, the rotative mounting of the bolts upon said plate comprising a pair of blocks secured upon said plate and engaging neck portions formed upon said bolts.

9. In a look, a casing for attachment on a'door and having a closed end formed with non-circular openings for alignment with similar openings in a keeper for attachment upon a jamb in end contacting relation with the closed end of said casing, a plate slidable within said casing, means for moving said plate forwards and rearwards, resilient mans for holding the plate in its forward or rear position, bolts rotatively mounted on said plate and in the openings of the closed end of said casing, heads on said bolts of shapes similar to said openings and adapted, when extended and turned, to assume locked positions within the keeper, a member laterally movably mounted within said casing and having a transverse rack of teeth engaging teeth formed in said bolts and also having a slot with a straight rear portion and an inclined front portion, and a pintle pin projecting from said plate and engaging within said slot, the rotative mounting of the bolts upon said plate comprising a pair of blocks secured upon said plate and engaging neck portions formed upon said bolts, and means for holding said bolts in various rotative positions.

10. In a look, a casing for attachment on a door and having a closed end formed with non-circular openings for alignment with similar openings in a keeper for attachment upon a jamb in end contacting relation with the closed end of said casing, a plate longitudinally slidable within said casing, means for moving said plate forwards and rearwards, resilient means for holding the plate in its forward or rear position, bolts rotatively mounted on said plate and in the openings of the closed end of the casing, heads on said bolts of shapes similar to assume locked positions within the keeper, a member pivotally mounted within said casing and having a rack of teeth engaging teeth formed in said bolts, means for moving said member upon its pivot during a portion of the motion of said plate, the rotative mounting of the bolts upon said plate comprising a pair of blocks secured upon said plate and engaging neck portions formed upon said bolts, and means for holding said bolts in various rotative positions, comprising a flat spring attached upon said plate and having its ends resting upon square heads formed upon the inner ends of the said bolts.

11. In a look, a casing for attachment upon a door and having a closed end formed with noncircular openings a keeper for attachment upon a jamb in end contacting relation with said casing,

a plate slidable within said casing, means for moving said plate, resilient means for holding the plate in a forward or a rearward position, a carriage slidable within said casing, bolts with teeth formed in one end thereof and rotatively mounted upon said carriage and slidably engaged in the openings in the end of said casing, heads on said bolts of shapes to engage in said openings and upon extension and turning of said bolts to prohibit retraction, a rack transversely slidably mounted in said carriage and meshing with said teeth on said bolts, and a pintle pin on said rack ing an inclined portion, said rack being engageable within a recess in said casing in the extendedposition of said bolts, and means for causing frictional connection and motion of the carriage and plate;

12. In a lock, a casing for attachment upon a door and having a closed end formed with noncircular openings a keeper for attachment upon a jamb in end contacting relation with said casing, a plate slidable within said casing, means for moving said plate, resilient means for holding the plate in a forward or a rearward position, a carriage slidable within said casing, bolts with teeth formed in one end thereof and rotatively mounted upon said carriage and slidably engaged in the openings in the end of said casing, heads on said bolts of shapes to engage in said openings and upon extension and turning of said bolts to prohibit retraction, a rack transversely slidably mounted in said carriage and meshing with said teeth on said bolts, and a pintle pin on said rack and engaging in a slot in said plate, and slot having an inclined portion, said rack being engageable within a recess in said casing in the extended position of said bolts, a spring acting between said casing and plate and causing frictional connection between said plate and carriage.

13. In a lock, the combination of a casing, a slidable and rotatable bolt therein, a plate in said casing movable in a direction lengthwise of said bolt, means for causing said plate and bolt to move together throughout a portion of the move-- ment of said plate, thereby to extend said bolt and adapted throughout a subsequent portion of the movement of said plate to cause said bolt to rotate, an arm pivoted in the wall of the casing, a projecting stud on said arm extending through a transverse slot formed in said plate, a spring mounted in the casing and connected to the plate and tending to hold said plate in forward and rearward position thereof, and means for manually turning said arm to move said plate to operate the lock.

14. In a lock the combination with a casing, a plate slidable Within said casing, resilient means connecting said plate and casing for holding said plate in forward or rearward position, a carriage slidingly movable within the casing and being actuated by said plate, a bolt rotatably mounted upon said carriage while said carriage is being moved in lengthwise direction along the casing by said plate, a knob rotatably mounted in the front wall of the casing for actuating the bolt, a crank arm connected to said knob, a socket member rotatably mounted on said crank, means for keeping said socket against rotary motion relative to the casing while permitting rotary mo:- tion relative to said arm, and key actuated means to operate the lock.

15. In a lock having a bolt, bolt extending and rotating devices comprising a plate, a rotatable arm for moving said plate and a single spring connecting the plate and easing adapted to operate said plate and holding the same in forward or rearward position, and operating said rotatable arm for rotating the bolt into final locked position and removing it into completely withdrawn position, and key operated means to operate the lock.

16. In a lock the combination of a casing, a plate slidable within said casing, a carriage slidingly movable within said casing and being actuated by said plate, a bolt carried by said carriage while being moved in lengthwise direction along the casing, a knob rotatably mounted in the front wall of the casing, a crank arm connected to said knob, a socket member rotatably mounted on said crank arm, a rod fixed to the socket means to guide said rod thereby permitting said socket to have a rotary motion relative said arm and non-rotary motion relative to the casi ng a cover plate detachably secured to the easing, a second arm rotatably mounted in the cover plate to actuate the socket member to operate the lock, and key actuated means to rotate said arm.

17. In a lock the combination with a casing, a plate slidable within said casing, a lever pivotally mounted in said casing andhaving a combined oscillatory and reciprocatory engagement with said plate, resilient means associated with said lever for holding said plate in forward or rearward position, a knob mounted in the front wall of the casing for moving said plate, a bolt connected with said plate and being actuated by the same for interlocking engagement with said keeper, and key actuated means to operate the lock. c

18. In a lock having a bolt, a bolt extending and rotating means comprising a plate having a connection with said bolt for causing the rotation of said bolt, an oscillating arm for moving said plate, a spring connecting said plate and casing and adapted to move the bolt into completely locked and unlocked position, and a knob rotatably mounted in the front wall of the casing to operate said bolt.

JOHN HOLTZMAN.

Images