US2839914A

US2839914A - Disc-dialing keyless lock

Info

Publication number: US2839914A
Application number: US548072A
Authority: US
Inventors: Harrison B Syler
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-11-21
Filing date: 1955-11-21
Publication date: 1958-06-24
Anticipated expiration: 1975-06-24

Description

June 24, 1958 H. B. SYLER 2,839,914

DISC-DIALING KEYLESS LOCK Filed Nov. 21, 1955 s Sheets-Sheet 1 IIIIIIIIIIIIIIIIIIIIIIIIIIIII/ INVENTOR Harrison B. Syler ATTORNEY} June 24, 1958 B. SYLER DISC-DIALING KEYLESS LOCK 3 Sheets-Sheet 2 Filed Nov. 21, 1955 FIG.6

FIG.5

'IIIIIIII'IIIII'IIIIII'IIll'll' I INVENTOR June 24, 1958 H. B. S YLER 2,839,914

DISCDIALING KEYLESS LOCK Filed NOV. 21, 1955 3 Sheets-Sheet 3 'IIIIIIIIIIIIIII I l I p a II INVENTOR Horrlson B. Syler ATTORNEY United States Patent 2,839,914 DISC-DIALING KEYLESS LOCK Harrison B. Syler, Los Angeles, Calif.

Application November 21, 1955, Serial No. 548,072

3 Claims. (Cl. 70-156) This invention relates to combination or keyless locks. Such locks are disclosed in my United States Patent No. 2,655,026, dated October 13, 1953 and in my copending application for United States patent Serial No. 460,085, filed October 4, 1954 and my abandoned application for United States patent Serial No. 452,933, filed August 30, 1954. The present invention is an improvement, in certain respects, upon the invention disclosed in the application Serial No. 460,085.

An important object of the present invention is to provide combination or keyless looks with multiple function Securing means for the lock housings, elimination of the peripherally grooved members of my application Serial No. 460,085 and modification of the vertically reciprocating plate of that application to accomplish more in the modification than is accomplished by the said plate. In addition, I have mounted all dialing discs upon the door latch spindle instead of providing separate pivots for the discs, and provided dual-function index arms for association with dial discs bearing indicia as well as means, in conjunction with the 'index arms, for click dialing. In connection with one form of the invention I have also modifiedthe showing, in my copending application referred to above, of the securing means for thelock housing so that the means may be manipulated to position for latch. Other improvements reside in new means for spinning the released dial discs so that they will not remain in their positions for unlocking the closures, and in rendering the dial discs easier to manipulate. I

Other objects and advantages of the invention will be apparent during the course of the following detailed description of the invention, taken in connection with the accompanying drawings, forming portions of this disclosure, and in which drawings:

Fig. 1 is a vertical section through one embodiment of the lock and a closure to which it is secured.

Fig. 2 is a vertical section, substantially on the line 2-2 of Fig. l. I

Fig. 3,is a horizontal section, substantially on the line 3-3 of Fig. 2. i a

Fig. 4 is a view mostly in elevation particularly as to the front face of a dialing disc, but partly in vertical section, substantially on the line 4-4 of Fig.

Fig. 5 is a fragmentary horizontal section, substantially on the line 5-5 of Fig. 2. I

Fig. 6 is a view, mostly in elevation, especially ofthe rear face of the dialing disc of Fig. 4, but partly in vertical section, substantially on the line 6-6 of Fig. 3.

Fig. 7 is a vertical section through a second embodiment of the lock and a closure to which it is attached.

Fig. 8 is a vertical section substantially on the line 8-8 of Fig. 7.

Fig. 9 is a horizontal section, substantially on the line 9-9 of Fig. 8.

. ,Fig.- 10 isra view mostly'in elevation'and partly in vertical section substantially on the line-10-10 of Fig. 7.

2,839,914 Patented June 247, 1958 Fig. 11 is a vertical section, substantially on the line 11-11 of Fig. 7.

Fig. 12 is a fragmentary horizontal section, substantially on the line 12-12 of Fig. 11.

Fig. 13 is a vertical section substantially on the line 13-13 of Fig. 9.

In the drawings, wherein for the purpose of illustration are shown two embodiments of the invention, the letter A designates the new lock of this invention, shown in Figs. 1 to 6 inclusive, and adapted for the closure B, which may be a screen door with associated jamb C, while the letter D designates the new lock of the invention, shown in Figs. 7 to 13 inclusive, and adapted for use with a closure E and associated jamb F of so-called outside doors.

The combination or keyless lock A=of Figs. 1 to 6 inclusive, includes a lock housing 15 consisting of a preferably rectangular front plate 16 from which extends a continuous rearwardly-extending wall 17, normal thereto, with upper and lower outwardly-extending flanges wall portion 26 may have a lock bolt shank-accommodating opening 27. The flange 18 has an opening 28 and the flange 19 has an opening 29 both to receive portions of

securing means

40 and 41 to secure the housing 15 to a portion of one side face of a closure B. I may provide a rectangular lock plate 30 of the area of the plate 16 plus the areas of the flanges 18 and 19 to close the compartment 33 of the housing and to extend over this portion of the face of the closure, substantially as shown in Fig. 1. The plate 30 has a spindle-accommodating opening 31 substantially like and axially aligned with the opening 20, and an opening substantially like and axially aligned with the openings 28 and 29 in the flanges 18 and 19.

Upon a portion of the opposite face of the closure B is disposed a plate 35 preferably substantially of the shape and area of the plate 30 as may be appreciated in Fig. 3. This plate 35 carries dialing means which will be detailed later. It is provided with an opening 36 substantially like and axially aligned with the openings 20 and 31 and an opening substantially like and axially aligned with the opening 18. There isalso provided an opening 38 in the plate 35 for a projection 100 of the dialing means to be later described. a W The housing 15 and the

plates

30 and 35 are secured to the closure A substantially as shown in Fig. 1, by

securing means

40 and 41. The means 40 may be a conventional bolt and nut assembly with the rounded head 42 of the bolt disposed upon the outer face of the plate. 35 and the shank extending through suitable openings in the

plates

30 and 35, and the opening 29 with the nut 43 hearing against the outer face of the flange 19.

The means 41 includes a specially-provided nut and bolt assembly which additionally functions as will be subsequently described. The-head 44 of the last-named assembly bears against an end portion of an arm of an index to be subsequently described and disposed upon the outer face of the plate 35' and the'hollow'shank 45 extends through the openings 18 and 28. A special nut 46 is provided for the means 41 and will be described subsequently in connection with the combination lock means .70. Of course the shanks of the nut and bolt assemblies also extend through suitable openings in the closure B.

Latch bolt manipulating means 50 includes a suitable hand grip, asfa knob 51 at the outer side of thelclosure B and a suitable hand hold, as a latch arm 52 at the inner side of the closure B, both being fixedly carried by a latch spindle 53 which is preferably square in transverse section. ."Mountedupon the spindle 53 for rotative movement therewith is a drive cam hub or member 54 which extends from :theinner end of the latch 52 into the compartment '33; The hub,of course,has a four-sided inner periphery but is arcuate in transverse section, and'it fixedly carries 'a pair of cam wings or arms 55, substantially as in Fig.2, and somewhat like those shown in my copending application referred to above, provided with the cam surfaces 56 normally in contact withthe pair of shoulders 57 of the la'tch'58 which comprises the central body portion 59, latchhead 60 at one end of the body portion, which head is adapted to slide in the slot 25 and extend outwardly thereof, and a latch shank 61 at the opposite end ofthe body portion 59, which shank is surrounded by the expansion helical spring 62 and may slide in the opening 27. One end of the spring bears against the wall portion 26 and the other end bears against the body portion 59. The body portion 59 is provided with a central slot 63 of a width of slightly more than the hub 54 and, the latter extends therethrough as may be seen in Figs. 1' and 2. It will be noted in Fig. 3 that the body portion .59 is provided with a stop64 to limit movement of the latch 58in one direction since it is adapted to contact the .wall portion 24 when moving to the right in Fig. 3. a

The combination locking means 70 of-the lock A includes a reciprocating plate 71, shown more particularly in Fig. 2,:which is adapted for vertical reciprocating within the compartment 33. The side edges of the plate slide along the. opposite

side wall portions

24 and 26 and'the free ends of projections 72 and 73, extending outwardly from opposite faces of the plate and preferably disposed adjacent the corners thereof, engage the front and back plates 16 andl30 respectively to slide vertically thereover and prevent tipping of the plate 71. The latter is provided with a rather long vertical slot 74 and a short horizontal slot 75, shown inFig. 3, and'opening to the slot 74 midwayithe ends of the slot 74, as may be appreciated in Fig. '2. The spindle 53 extends through the slot, 74, and the slot 75 accommodates the cylindrical free end portion 76 of a substantially L-shaped arm 77 extending from the hub 54 of the latch bolt'manipulating means 50, and rotatable upon rotation of the'spindle 53. Projecting rearwardly and 'outwardlylfrom the upper portion of the plate 71 isa. horizontalprojection 78 for a purpose later detailed. Adapted to. contact the upper edge of the plate 71 is an arm 79, shown in. Figs. 1 and 2, which also extends. through the slot 22 for horizontal reciprocation therein. The arm 79 is secured, a'titsupper end portion, to a rotatable and reciprocable member, including a knob 80 and shaft 81 towhich the knobis secured. The knob extends exteriorly of the housing. and the shaft 81 extends. through the hollow nut and into the hollow of the shank .44 of'the securing means .41 referred to above. The inner end of the shaftis shown. as provided with a head or abutment82 uponwhich bears one end of an expansion helical spring 83 with the other end thereof bearing, against the wall of the hollow nut 46 to urge the head 82 to abut the end wall of the hollow of the shank. Pulling outwardly upon the knob 80 will, of course, cause the free end portion of the arm 79 to leave the slot 22 (in which it is disposed when the head 82 engages the end wall of the shank 45) and this will free the reciprocating plate 71 for upward movement, urged 4' only from the side of the closure B carrying the housing 15.

The combination locking means 70 includes means 85 to rotate a dial disc 96 to be subsequently described, this means including a disc 86 contained in the compartment 33 preferably next adjacent the lock plate 30 and provided with a radial slot 97 extending from its periphery and adapted to slidably receive the projection 78 of the reciprocating plate 71. Preferably, the disc 86 also has a pair of projections 88, shown in Fig. 3, substantially 180 apart and adapted to be contacted by the free end portion of a'leaf spring 89 mounted, at its other end portion, upon the nut and bolt assembly 41 as being clamped by the nut 46 between it and the upper flange 18. The spring 89 is of a length with relation to the projections 88 that its free end bears upon one or the other projection. Obviously the disc 86 may rotate only when theprojection 78 is out of the 'slot 97. The disc is fixedly mounted upon an elongated sleeve 90 which extends through the closure Band outwardly of the plate 35 andis mounted upon and to rotate independently of the spindle 53 since it has a circular inner periphery as may be seen in Fig. 4.

The combination locking means 70 also includes the dialing means 95 for visual and click dialing for locking and unlocking the look A. The means 95, shown in Figs. 1, 4 and 6, includes the dial'disc 96 containing suitable indicia 87 as figures and graduations adjacent its periphery upwardly by arcuate movement of the L-shaped arm 77 and mounted upon a sleeve 98 which is, in turn, mounted upon and secured to the sleeve to rotate therewith. Associated withthe vdialdisc 96 is an index arm or pointer 99' of springy material and may be carried at its upper end by the means 41, as being disposed between the bolt head 44 and plate 35. The arm 99 normally springs outwardlyso that its free pointed end portion clears the dial disc as in Fig.1. However, the arm 99 carries a small somewhat J-shaped projection portion 100 connected with a head or knob 101 with the former positioned upon the underside of the arm and the latter projecting from the outer side of the-arm. The tip of the projection portion 100 is adapted to enter, upon manually pulling outwardly upon the knob 101, one after another, the spaced-apart indentations or shallow recesses 102 in the inner'face and adjacent the periphery'of the dial disc 96, as shown in Fig. 6, or to slide over the area 103not occupied by the indentations.- This will produce a plurality of clicks when the projection portion 100 enters and leaves an indentation but no clicks while it travels over the area 103. In order to accommodate the projection portion 100, thenplate 35 isprovided with the opening38., l a

In addition to the before-mentioned several conventional openings through-the closure B, there is provided a recess 105 with its mouth. aligned with the opening 38 in the p1ate35ftolaccommodate the projection portion 100. Shown by way of illustration is a conventional lock strike 106 carricd'by a jamb C with recess 107 in the latter for the head 60. v

In the manipulation of1the'lock A, from the side of the closure B containing the knob 51, the operator may rotate the sleeve 98 or thedialdisc 96.itsclf until the predetermined indicia '87 aligns with the point of the index arm 99 at which time the slot.97 in the disc 86 is in alignment'with the projection 78 of" the reciprocating plate 71, which normally is retained'upon the periphery ofthe disc 86, and the projection may ride down into the slot. While theoperator holds the 'sleeve 98 or dial disc 96 against further movement, he rotates the knob 51 counterclockwise which,rotating the spindle 53, will move the reciprocating plate 71 in one direction and permit movementof the jcamar'msSS to retract the bolt'58 so that the closure B may be opened. a

In employing cliek? dialing (asin the dark), the operator pulls slightlyupon the knob 101 so that the free end of the projection portion 100 will ride into and out 5 of the indentation 102 and the operator may count the predetermined number of clicks, following the silent interval as the free end rides over the area 103, which will indicate to him that theslot 87 and projection 78 are in alignment.

For unlocking the closure B from the side containing the latch arm 52, the operator simply pulls upon the knob 80 which will cause the arm 79 to move out of the slot 22 and out of contact with the reciprocating plate and the latter is now released to move in one direction so that the latch arm 52 may be manipulated to unlock the closure.

It should be noted that upon release of the dial disc 96 or the sleeve 98, the leaf spring 89, bearing upon either one of the two projections 88 of the disc 86 willcause the disc 86 to rotate and, consequently, cause the dial disc 96 to rotate so that the point of the index arm 99 will no longer point to the specific predetermined indicia-97 referredito above. 2

Referring now to the lock D of Figs. 7 to'l3 inclusive, this. lock is adapted for use on closures such as so'called outside doors and includes the lock housings 118 and 1 11 disposed upon opposite faces of the closure E, withthe housing 110 comprising a preferably rectangular .front plate 112 from which extends a continuous rearwardlyextending wall 113, normal thereto, and a back plate 114, with the edges of the wall 113engagin'g the edge portions of the plate 114 and all providing a compartment 115.

The

plates

112 and 114 are provided with aligning spindle-accommodating openings, and fastener means-accommodating openings akin to the similar openings of the

plates

16 and 30.

The housing 111 comprises a front plate 120 of preferably rectangular shape, with a rearwardly extending continuous Wall 121 normal thereto, and a back plate 122 abutted by the edge portions of the wall 121, providing a compartment 123, and the plates having spindle-accommodating openings 124 and 125 and securing

meansaccommodating openings

126, 127, 128 and 129. p

The securing means 130 preferably comprises a conventional nut and bolt assembly for the lower part of the housings and extending through the closure E, while the securing means 131 for the upper portions of the housing and closure E comprises a special nut and bolt assembly of head 132, shank 133 and nut 134, somewhat like the

elements

44, 45, and 46 of the assembly 41, andwhich will be more fully explained later.

Latch bolt manipulating means 135 of the lock D includes the

knobs

136 and 137 mounted at the respective end portions of the spindle 138 which latter extends, of course, through the housings 110 and 111 and closure E. A drive cam hub 139 is mounted upon the spindle within the housing 110 and, as may be seen in Fig. 8, has cam wings 140, substantially similar to the wings 55 of Fig. 2. The wings 140 have cam surfaces 141 to engage the shoulders 142 of a bolt or latch 143 which latter includes the body portion 144 from one end of which extends the head 145 and from the other end of which extends the shank 146 with an expansion helical spring 147 arranged as is the spring 62. There is provided a stop 148 functioning as does the stop 64.

The combination locking means 156 of the lock D includes the reciprocating plate 151, shown in Figs. 7, 9, 11, and 13, which is adapted for vertical reciprocation within the compartment of the lock housing 111. The side edges of the plate 151 slide along the opposite side wall portions of this housing and the free ends of the

projections

152 and 153, extending outwardly from opposite faces of the plate and preferably disposed adjacent the corners thereof, function like the projections 72 and 73. The plate 151 is provided with a rather long vertical slot 154 and a short horizontal slot 155, both best shown in Fig.

13, and opening to the slot 154 midway the ends of the latter. The spindle 138 extends through the slot 154,

and the slot 155 accommodates the free end portion 156 of an'arm which is carried by a hub member 157 functioning, in that respect, like the member 54 of the lock A, and mounted upon and rotatable with the spindle 138. V The plate 151 is provided, at its upper and lower edge portions, with

slots

158 and 159 with their longitudinal axes substantially upon the longitudinal medial line of the plate 151. Projecting rearwardly and outwardly from the upper end portion of the plate 151 is a projection 160 which may be termed a wedge and its function will be later described. J There is also a horizontal projection 161 which extends forwardly outwardly from the opposite face of the plate 151. p 7

Adapted to selectively'contact the walls of the slot 159 (when the door is locked), or the

projections

160 and 161 underother circumstances, is an arm 162, which depends from a rotatable and reciprocable member, including a knob 163 and shaft 164. The knob extends exteriorly of the housing 110, as may be seen in Fig. 7, and the shaft 164 has an abutment 165 at its inner end portion slidable through the bore of the shank 133 of the securing means 131 and the nut 134 being secured tothe shank 133 between the knob 163 and plate 112. At the opposite end of the shank 133 is the head 132 which bears against the upper end of an index arm 188 disposed between'it and the front plate of the lock housing 111. The shaft 164' is surrounded by an expansion helical spring 166 which bears, at one end, against the nut 134 and, atthe other end, against the enlargement 165. To this enlargement 165 of the'shaft is fixedly secured the upper end portion of the arm 162. From Fig. 12 it will be seen that the shank 133 is provided with a stepped slot 134 providing three shoulders at one longitudinal side thereof, with the other side being preferably straight. This permits three adjustable positions of the arm 162 (which extends through the slot) upon partial reciproc'a: tion and rotation of. the shaft 164 (upon manipulation thereof by the knob 163). In the position of the arm against the right-hand shoulder of Fig. 12, thearm 162 will be within the slot 159 of the reciprocating plate and the lock D will be locked; in the position of the arm 162 against therniddle shoulder of Fig. 12, there will be ef fected a temporary unlocking but, when either

knob

136 or 137 is rotated, the free end portion of the arm will be engaged by the projection 160. With the upperend portion of the arm 162 to be positioned against the mid dle shoulder in the slot 134' of Fig. 12, the lower or free end of the arm 162 is then within the vertical .plane of the lowermost portion of the face of the wedge-shaped projection 160. As the plate 151 rises, upon turning either knob or 137, the wedge shaped or beveled face of the projection 137 will engage the lower end of the arm 162 and this end will begin to slide over this face, i. e., slide to the left in Fig. 7 as the plate 151 rises. As it slides it will cause the enlargement 165 to alsomove to the left against the tension of the spring 166, since there is a clear space to the left in the slot for such movement. However, if the knob .163 isnow manually rotated until arm 162 is aligned with said right hand shoulder the spring will urge the enlargement 165 to the right and this will carry the arm with it. Thus a locked position of the lock will be effected. Now, with the upper end portion of the arm 162 to be positioned against the left-most shoulder in slot 134 of Fig. 12 in this position, the upper end portion of the arm 162 will be out of reach of the wedge-shaped or beveled projectionl6t) as the plate 151 moves upwardly or downwardly, and, inthis situation, an unlocked positionof the lock will remain until the upper portion of the arm 162 is moved. To permit the lock to be unlocked, a pull upon the knob 163 so that the arm will clear the reciprocating plate 151 and a clockwise turn of the knob 137 will release the *bolt head from th opening in the lock strike of the jamb E. v

Means 167 to rotate

dial discsv

177 and 178, subsequently described, includes a disc 168,. next adjacentthe plate 151 and mounted upon. the spindle 138, and a second disc 169 next adjacent the disc 168 and mounted upon the hub. of. the disc 167. Each'di's'c168 and 169 has a radial-extending

slot

170 and 171 respectively for. unlocking purposes as will be described. In addition, the rims of thesetwo slots are substantially smooth,except for thetwoslots. V, 1

The disc 169 is provided with two projections 172, paralleling the axis of rotation of the disc and disposed substantially 180 apart and functioning as do the projections, 88. They'are adapted to be contacted by the free end portion of a leaf spring 173 mounted, at its other end portion, upon the shank 133 by. being inserted in a suitable transversely-extending slot therein. The spring 173 functions as does the leaf spring 89. An elongated sleeve or hub 174;is provided for the disc 168 and it is this sleeve upon which' the disc 169 is rotatably mounted-by its elongated sleeve 175.

The combination locking means 150 .also includes the dialing means 176 for visual and click dialing for locking and unlocking the lock D. This means 116 includes the dial discs"'177 and 178 of Fig. 10, containing suitable dialing indicia, such as theindicia 179 to 182'inclusive. Dial disc 177 is fixedly mounted upon the sleeve 174 of the disc 167 and ,is the larger. of the two dial discs, while dial disc 178 is fixedly mounted upon the sleeve 175 of the disc 169 and is, disposed next adjacent and outwardly of-the dial disc 177, and near the knob 136. f In addition to the

indicia

181 and 182, the dial disc 178 carries a plurality of spaced-apart indentations 183, disposed an equal distance from the axis of rotation of the disc 178 and forming a part of the click? dialing means. These spaced-apart indentations 183 do not extend in a circle but there is an area 184 on the disc free thereof. There is also another plurality of .click dialing indentations 185 (Fig; 11) .carried upon a ring 186 mounted'upon the outer face of the disc 169 and including an area 187 of thering 185 free of the indentations.

An arm 188, shown in Figs. 7 and has its upper portiondisposed between the head 132 and front plate 120 and this arm is of somewhat springy material and bowed substantially' as shown inFig. 7. It is'p rovided 'with a cut-out 189. at its lower end portion, which overhangs the rim portion of medial disc 177, and this cut-out forms a window so 'that the operator; may see the indicia 179 therethrough, as the, dial disc 177 is rotated. When the predetermined indicia 181 is within the window, the lock may be manipulated forunlocking. On the underside of the arm 188 are two rearwardly-extending

projections

190 and 191, the former to engage the indentations 183 and the latter to engage the indentations 185.

The closure E,'in addition to the openings therein mentioned, includes a recess 195 to accommodate movements of the arm 162, therebeing also an aligning openingin the back plate 122. p

Thejamb F-is provided with the usual lock strike 196 and recess 197 for the head 145. I

In order. to unlock the lock D,'the operator rotates the dial disc 177 until the predetermined unlock indicia appears in the window 189 and holds the dial disc 177 steady by a slight'pressure on the arm 188, while dialing the dial disc 178 until the predetermined indicia 181 is at the pointed end of the arm188. Continuing his'pressure uponthe arm 188, the operator turns the knob' 136 clockwise with his free hand. When the knob is released, the spring 173 pressing upon one of the projections 172 will cause rotation of the disc 169 to a locked position and rotate disc 168 to some extent by frictional contact therewith. w

i From the other side of the closure and lock, the operator pulls the knob 163 sufiiciently so thatthe arm162 will clear the top of the reciprocating plate 151. Then a clockwise turn of the knob 137 will release the head 145 fromthejambF. V In' ,erder to allow the "closure unlockedfthe knob 163 is pulled to its limit and rotated clockwise, whereby the arm 162 will be against the left-hand shoulder of the slot 134.- (the left-hand shoulder asin Fig. 12). Of course, when the arm 162 is against the right-hand shoulder of Fig. 12, the closure is locked for the-arm then engages the plate 151.

For a temporary unlocking, the operator manipulates the knob 163 so that the arm 162 will be against the intermediate shoulder of the slot 134, so that when either knob is turned to elevate the plate 151, the arm 162 will be cammed by the projection 160 back into line with the right-hand shoulder of Fig. 12 and the spring 166 will force the arm against this last-mentioned shoulder by it are in the unlocked position, the operator will then turnthe knob 136 until the closure is opened.

Various changes may be made to the form of the invention herein shown and described, without departing from the spirit of the invention as defined by the scope I of the claims.

What is claimed is:

1. A combination lock including a housing; securing means for mounting said housing upon a closure, includinga nut and bolt assembly having a bolt shank provided with a longitudinally-extending bore and extending through said housing and for extending through said closure, and a nut for said shank and provided with a central opening therethrough communicating with said bore,

a shaft slidable in said opening and bore, an enlargement at the inner end of said shaft within said bore, means to urge said enlargement away fromsaid nut; a reciprocable bolt carried by said housing and having a head normally extending outwardly of said housing; locking means including an arm depending from and fixedly secured to said shaft and extending into said housing, and a reciprocating plate slidable in said housing and having an upper portion, with said arm selectively disposed with its lower end within the path of travel of said upper portion of said plate when the inner end of said shaft is in one position longitudinally of said bore and disposed with said lower end outwardly of the path of travel of said upper portion when said inner end of said shaft is in another position longitudinally of said bore; and means carried by said plate and bolt to permit retraction of said bolt upon reciprocation of said plate in one direction.

2. A combination lock including a housing; securing means for mounting said housing upon a closure, including a nut and bolt assembly having a bolt shank provided with a longitudinally-extending bore and extending through said housing and for extending through said closure, and a nut for said shank and provided with a central opening therethrough communicating with said bore, a shaft slidable in said opening and bore, means to retract said shaft; a reciprocable bolt carried by said housing; locking means including an arm depending from andfixedly secured to said shaft and extending into said housing, and a reciprocating plate slidable in said housing and having an upper portion, with said arm selectively disposed with its lower end within the path of travel of said upper portion of said plate when the inner end of said shaft is in one position longitudinally of said bore and disposed with said lower end outwardly of the path of travel of said upper portion when said inner end of said shaft is in another position longitudinally of said bore;'means carried by said reciprocable plate and bolt said plate in one direction; and dialing means, including a rotatable dial disc operatively connected with said locking means, and an index arm extending to said dial disc and supported by said bolt shank.

3. A combination lock including a housing; a bolt; bolt manipulating means, including a spindle carried by said housing; combination locking means, including two slotted discs mounted upon said spindle each for independent rotation thereon, each disc having a peripheral slot, and

' a reciprocating plate movable upon rotation of said spindle having a projection to enter said slots upon alignment thereof and alignment of said slots with said projection; click dialing means including two dial discs mounted upon said spindle, the first dial disc being fixedly connected with the second of said slotted discs to rotate therewith and the second dial disc being fixedly connected with the first slotted disc to rotate therewith, said dial discs being provided with dialing indicia upon the outer face of each and the first dial disc being outermost and of less diameter than the diameter of the second dial disc and being provided with a plurality of spaced-apart concentrically-disposed indentations upon the outer face thereof with an extended smooth area of said first dial disc between two of said indentations, and the first slotted disc being provided with a plurality of spaced-apart concentrically-disposed indentations in one side thereof with an extended smooth area of said first slotted disc between two of the last-named indentations,

and a movable arm carried by said housing and having a projection adapted to extend into the first-mentioned indentations and ride out thereof and over the firstnamed smooth area upon rotation of said first dial disc, and a projection adapted to extend into the second mentioned indentations and ride out thereof and over the second-named smooth area upon rotation of the second dial disc, whereby said projections, riding into and out of said indentations provide a plurality of clicks with intervals of silence when said projections ride over said smooth areas, said projections being normally spaced from said first di'al disc and first slotted disc; said movable arm having an index at its free end portion, said free end portion overlapping the outer face of said second dial disc and provided with an opening aligned with said dialing indicia upon said second dial disc upon rotation of said second dial disc.

References Cited in the file of this patent UNITED STATES PATENTS 835,437 Katzenberger Nov. 6, 1906 977,337 Soley Nov. 29, 1910 1,156,659 Benham Oct. 12, 1915 1,696,466 Westeott Dec. 25, 1928 1,892,964 Rainey Jan. 3, 1933 2,085,917 Mathes July 6, 1937 2,728,215 Bremer Dec. 27, 1955