US1944430A - Safe - Google Patents

Description

` Jan. 23, 1934. A, HOFER Er AL 1,944,430

SAFE

Filed Dec. 16, 1932 v 2 sheets-sheet 1v S /6L .ac

o 1 0 O 56 I O O O O O @www Jan. 23, 1934.

AQ HoFl-:R Er A1. 1,944,430

fSAFE Filed Dec. 16. 1932 2 Sheets-Sheet 2 IIIIIIINI Patented Jan. 23, 1934 SAFE Anton Hofer and Felix Danninger, Milwaukee, I Wis., assignors to Edward J. Kastenholz, vMil'- Waukee, Wis.

Application December 16, v1932` Serial No. 647,524

2 Claims. (Cl. 10S-3)Y Y This invention pertains broadly to Vsafes for altar tabernacles, and is an improvement on our Vpending application filed January 21, 1932,v Serial t No. 587,892. '5 One of the primary objects of our presentinvention is to provide a novel operating mechanism for the doors of the safe or tabernacle, whereby to insure the easy operation of said doors and the eiective locking' of said doors against opening l vmovement by an unauthorized person. o

g Anothersalient object of 'our invention is to 4provide an improved lock structure for 'use with Vthe safe, which is so constructed that actuation thereof without the correct key isrendered prac- 1 llll tically impossible, and whereby the barrel of the nected to the barrel of the lock through the use Y lof a spiral' slot and pin mechanism, so that upon vrelease ofthe barrel, and rotation thereof, longitudinalmovement will be transmitted to the said 4"25 shaft for releasing the locking mechanism of the doors,a novel means being provided for preventing the rotation of the said shaft during itsinitial 'longitudinal movement. y "I A further important object of our invention is i the provision lof means'forreleasing the holding means for the said shaft after 4the same has released the locking mechanism'for the doors, so thatupon continued rotation of thebarrel of the lock,'the shafttwill be permitted to revolve for `bringingfabout the swinging of the doors to an Aopen position.

is th' provision of novel means for constructing the key-operated lock for thesafe, whereby the '40 same win not oniybedimcuit to pick, butwh'ereby' wear. thereon will be reduced to a minimum so as to insure the properoperation of the lock after long continued use, the tumbler plates of thexlock being providedY l,with hard steel bearing pins against which the bit of the key is adapted to ride. `Withthese and other objects in view, the invention consists 1in the novel construction, arrangementfand formation of parts, as will be hereinafter more specifically described,pclaimed,

Vand illustrated in the accompanying drawing,Y

' of Figure l looking in the direction of the arrows.

Y leaves or arms being shown in their closed, locked position.

Figure 2 is a View similar to Figure 1, showing the leaves 'or arms in their unlocked position and Figure 4zis an enlarged fragmentary top plan View of a part of the operating mechanism, illusvtrating in detail the meansfor holding the operating shat against rotation during its initial sliding movement.

Figure 5 is an enlarged detail side elevation of the rotatable barrel of the loclnshowing the novel spiral shaft carried thereby for bringing abou the actuation of the operatingfshaft.

Figure 6 is a fragmentary side elevation of thek shank of 1a key utilized for operating the lock. Y 75 Figure 7 is a front elevation of the barrel of the lock, the face plate for the barrel ofthe lock 'being ,shown removed, and one of the tumblers partly broken away and-insection to illustrate i the structure thereof.V j Y Sil c Figure 8 is a front elevation of the key utilized for operating the lock.-

Referring to the drawings in detail, wherein` similar rreference characters designate corresponding parts throughout the several views, the letter A generally indicates an altar safe which can be constructed inr accordancewith our pendingv application referred toabove.

The safeA. is provided with anovel operating and locking means B for the doors of the safe, as

, will behereinafter'more fully set forth. A furtherk important object of our invention They safe Amay comprise an end wall 10 having secured thereto, or formed thereon,a stub shaft'll on which is rotatably mounted facing beveled gears 12 and 13. Any desired type of 95 anti-frictional bearings 14 can be utilized for rotatably supporting these beveled gears, and the-same have attachedrthereto supporting arms or leaves'15 and-16', which carry the closure doors for the safe (not shown). The safe is 100 preferably provided with pairs of inner andouter doors, as fully set forth in our mentioned pending application, and the construction of theA safe and actuating means for the inner door will not be describedindetail inthe present application, kasthe invention resides more particularly inthe novel operating f and locking mechanism, as pointed out in the objects. K Y, i

Our improved operating and locking me'chanism B comprises a hollow shaft 20, which is l10- lll) rotatably mounted in suitable bearings 21 and 22 carried by the plate 10. These bearings 21 and 22 can be provided with conventional removable bearing caps or straps 23. The inner end of the hollow shaft 20 has formed thereon, or secured thereto, a beveled pinion 24, which meshes with the facing beveled gears 12 and 13 to bring about the rotation thereof when -said hollow shaft is turned. This shaft is provided intermediate its ends with longitudinal slots 25, for a purpose which will be more fully set forth, vand this shaft slidably receives the forwardly extending operating shaft 26, which extends beyond the front bearing 22. The forward end of the hollow shaft 20 can have secured thereto in any desired way a collar or bearing ring 27, which bears against the front face of the bearing 21, and holds the said hollow shaft against vinitial movement. Rearward movement of the hollow shaft is prevented by suitable washers 28 placed between the rear bearing 21 and the beveled pinion 24.

Slidably mounted upon the hollow shaft 20 is a sleeve 29, and' this sleeve 29 is provided with a cup-shaped annular lock head 30, which is adapted to engage the hooked ends 31 of the lock 'arms or latches 32,v which are'secured to the swinging arms orleaves 15 and 16 when the said lock head is in its rearmost position. Secured on the rear end of the sleeve 29 isVV a collar 33, Vand this collar carries a pin 34 which extends through the slot into the operating shaft 26. This provides means whereby the op'- erating shaft 26 and the sleeve 29 will move together as a single unit. Y

Disposed on the sleeve 29, and conned between the collar 23 and the keeper lock head 30, is a ring 35. This ring 35 has secured thereto rearwardly extending` operating rods 36, which lead to certain operating mechanismfor the doors, which form no part of the present invention. It will be noted that theV collar or ring 35 'is rotatably supported on the sleeve, but confined against longitudinalmover'nent.

N'ovel means 'is provided for holding the sleeve against accidental rotation when the same is -in its locked engaged position with the latch arms 32, and thisr means Vembodies a' 'lug 37 fformed on the rear face of the front bearing 22,

which lug is received within` a slot 38 formed in the forward end of .the sleeve. This construction f is more clearly illustrated in Figure 4 of the drawings. Obviously, when the shaft 26 is moved rearwardly, the sleeve 29 will becarried therewith, which will'mov'e the walls of the notch 38 from outof Yengagement with the locking lug 37. In View of the fact that'the sleeve 29r is coupled with the shaft 26, the shaft is, heid against rotation when the walls of the notch are in engagement with the lug.

Disposed at the front end of the safe is the key-lock 40, and this key-lock 40 embodies a 'locking Yhousing or casing 41, which is rigidly connected to a supportingbracket 42 bolted or otherwise fastened to the plate 10. Rotatably mounted within the lock housing or casing 41 .is a barrel 43, andthis barrel hasformed thereon the cylindrical stem or shaft 44,A which protrudes through the rear end of the bracket 42. This stem or shaft 44.is provided withy spiral guideways 45, as is clearly shown in Figure 5 of the drawings. A key-hole 46,'shaped to correspond to the key utilized in operating the lock, isformed in front of the housing or casing 41, andextending axially into the key-hole is a rigid guide pin 47 carried by the barrel or the lock.

Slidably mounted within the barrel 43 of the lock are oppositely disposed flat tumbler plates 48, which are normally urged outwardly from opposite sides of the barrel by means of springpressed pins 49 carried directly by said tumbler plate. The outer ends of the tumbler plates carry locking tongues 50, which are adapted to project into slots 51 formed 'in the lock casing or housing 41 when said tumbler plates are in their projected position. These tumbler plates are provided with central openings 52 which permits the insertion of the key into the barrel, and, in accordance with our invention, each of the tumbler plates are provided with guide and wear pins 53, which lie at the ends of the openings 52 adjacent to the spring-pressed pins 49.

These guide and wear pins 53 are preferably formed from hardened steel and form the means by which the tumbler plates are actuatedby the key bit. As shown in Figure 7, the tumbler plates are provided with vtransversely extending bores 54, by means' of which the guide and wear pins 53are placed in position, and these guide and '.100 wear pins are held against accidental displacement by the spring-pressed pins 49. A cover plate 55 closes'the open end of the barrel 43 and serves as means for retaining the tumbler plates in position. :165

Rotatably mounted on the cylindrical stem or shaft 44 is an operating collar'or nut 56,V and this collar carries diametrically disposed pins 57 vnected with the collar or nut 56 is'the forward end of the operating shaft 26, and, Vif desired, the forward end of the shaft 26 can be provided with a disc 58, which forms means for abutting against the rear end of the collar or nut 56. 11.15

In order to facilitate the coupling' of the hollow shaft 20 with thev operating shaft 26, and tofacilitate the guiding of said shaft 26, the forward end of the hollow shaft carries oppositely disposed rigid guide pins 59, and these pins are slidably received within sockets 60 formed in the collar or nut 56; n

In Figures 6 'and 8 We have illustrated a preferredA type of key to be utilized with the lock, and, as shown, this key 61 embodies a shank `62 having the bit 63 formed on the forward end thereof. This bit .63 is provided with the desired type of indentations for facilitating the accurate depression of the tumbler plates 48 Vso that Vthe locking tongues thereof will be withdrawn from 'all engagement with the walls of the slots 51 formed in the lock housing or casing 41."

In use of the improved structure, the key' is inserted within the lock housing, and the guide pin 47 will ride into axial opening 64 formed within the Vshank 62 of the key. vThe initial movement of the key will depress the tumbler plates 48, which vwill allow the turning of the barrel 43 under the-influence ofthe key. Upon initial/turn.- ing movement ofthe key, the stem or shaft 44wi1=l be rotated, andas the collar or nut 56 is held against movement by the locking engagement of the lug. V37 with the `Walls of Athe slot38, the nut or collar 56` will be fed rearwardly through .themedium of the spiral grooves 45 and pins 57. This rearward movement of the shaft 26 will carry the lock head 30 from out of engagement with the latch arms 32, and the walls of the slot'38 maybe out of engagement withlthe lock. Continued rotation of the key will now permit the shaft 26 150 and the hollow shaft 20 to rotate as a unit, which will bring about the opposite rotation of the beveled gears 12 and 13, and the consequent opening of the doors.

Upon retrograde rotation of the key, the doors will be closed, and when the same reach their extreme closed position, the gears 12 and 13 will be held against further movement. Consequently, the shaft 26 will be held against' rotation, and the nut 56 will be drawn forwardly vtoward the lock housing, and the parts will then reassume their locked position. The key can then be Withdrawn, at which time the tumber plates will be projected by their spring-pressed pins into locking engagement with the stationary casing or housing of the lock.

Changes in detail may be made without departing from the spirit or scope of this invention, but what we claim as new isz- 1. In a safe structure, a pair of facing beveled gears, door-hinge leaves connecting said gears, a hollow rotatable shaft having a pinion meshing with said beveled gears, means for rotatably supporting the hollow shaft, an operating shaft slid` ably mounted in the rotatable shaft, a key-operated lock including a rotatable barrel, a spiral shaft secured to the barrel, a feed nut on said spiral shaft, means operatively connecting the operating shaft with the nut, alock sleeve slidably mounted on the exterior of the hollow shaft,

means rigidly connecting the sleeve withthe op- V together extending through said slots, one of the i bearings and sleeve carrying a coacting locking lug and slot, whereby the sleeve and operating shaft are normally held against rotation, a keyoperated lock embodying a rotatable barrel, a spiral shaft connected to the barrel, and a travelling nut on said spiral shaft,`means rigidly connecting the operating shaft and nut together, and guide pins carried by the sleeve and received within openings formed insaid nut.

ANTON HOFER. FELIX DANNINGER.

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