US633352A - Lock. - Google Patents

Description

No. 633,352. Patented Sept. I9, I899. A. ANDERSON.

LUCK.

(Application filed June 2, 1899.)

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No. 633,352. Patented Sept. 19, 1899.

A. ANDERSON;

LOCK. (A lication filed. June 2, 1999.)

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UNITED S E ANDER S ANDERSON, OF CLOQUET, MINNESOTA.

LOCK.

SPECIFICATION formingpart of Letters'Patent No. 633,352, dated September 19, 1899.

Application filed June 2,1899. Serial No. 719,164. (No model. I

To all whom it may concern.-

Be it known that I, ANDERS ANDERSON, a citizen of the United States, residing at Cloqnet, in the county of Carlton and State of Minnesota, have invented certain new anduseful Improvement-sin Locks; and I do hereby declare the following-to be a'full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it appertains to make and use thesame.

My invention has for its object to provide an improved lock especially adapted for use in connection with trunks, chests, &c., but nevertheless adapted for'much more general use. To this end my invention consists of the novel devices. and combinations of devices hereinafter described, and defined in the claims.

The invention in its preferred form is illustrated in the accompanying-drawings,wherein like characters indicate like parts throughout the several views.

Figure 1 is a View in elevation with some parts broken away, looking at the inner face of the lock. Figs. 2, 3, and tare similar views to Fig. 1, but illustrate different positions of the various parts. Fig. 5 is a transverse vertical section taken on the line of Fig. 1.

Fig. 6 is a horizontal section taken on the line 02 m of Fig. 4 and looking toward the up per edge of the lock. Fig. 7 isa horizontal section taken approximately on the line .00 00" of Fig. 3, some parts being removed. Fig. 8'

is a section taken approximately on the line 00 x of Fig. 1, and Fig. 9 isa plan view of the operating-key.

In the construction illustrated the lockcase' is made up of a face-plate 1, having an upper rim 2 and a rectangular and flanged bodysection 3, the side of which is spaced apart from but rigidly secured to the face-plate 1 by means ofscrews' t. The section 3 is provided with an ordinary keyhole, in line with nate in laterally bent hooks or catches 11, which are adapted to catch and release the hooks 7 of the lid-strip 8 when the said lookyoke is moved in the one direction or the other longitudinally of' the bracket 9. The lookyoke 10 has notches 12, which engage the said bracket 9 and work thereon. A spring 13 normally tends to hold the said lock-yoke 10 to its extreme position toward the left, in which position its hooks 11 move under and nearly close the hook-passages 6. Pivoted to the locking-yoke 10 at 14 is a releasing-lever 15; which is provided with an approXimately T- shaped cam-head 16. A spring 17, secured at one end to the yoke 10, engages the camhead 16 and tends to hold the said releasinglever 15 in its vertical and intermediate position. (Indicated in Fig. 2.) At its free end the releasing-lever 15 is provided with a notch 18, with a recess or depression 19, and with an upturned lip or cam edge 20, all for a purpose which will presently appear.

Mounted for vertical movement just below one of the hook-passages 6 and through a keeper or guide 21 on the lock-case is a yokeretaining plunger or slide 22. The lower end of this plunger or slide 22 is shown as laterally elongated, as shown at 23, and when raised is adapted to engage within a notch 2-1 out in the edge of the said lock-yoke 10, and thereby hold the said yoke in its releasing or inoperative position. (Indicated in Fig. 4.) .A spring 25, one end of which is shown as secured by a post 25 to the lock-case, engages with its free end the lower end of the said plunger or slide 22 and tends to hold the same upward to its limit.

Secured within the lock-case just below the lock-yoke 10 isa vertical shelf 26, which is cut away at 27 to permit of the proper working-of the key and is cut away again at 28 for another purpose. Along lever-like detent 29 is pivoted to the shelf 26 at 30. This detent is normally gravity held in its lowermost position, which, as shown, is limited by a stop 31, and at its free end it is provided with a laterally-projected finger 32,which is adapted for engagements with the cam edge 20 and recess- 29' in the free end of the releasing-lever 15 in a manner which will be brought out in thede'scription of the operation.

; The keyis of special construction, and consists of the key-stem 33, the operating end of which is provided with an axial seat 3% to receive the guide-pin 5, and it is provided at this operative end with a pair of blades 35 and 36,which are spaced apart, as shown at 37.

The operation of the lock will be substantially as follows: \Ve will now assume that the parts of the lock are set in a locking position or as shown in Fig. 1, in which position the finger portion 32 of the detent 29 engages the recess 19 of the vibrating releasin glever 15 and holds the said lever against the action of the spring 17. In this position the key,if placed on the guide-stud 5 and forced as far inward as is possible to force it, will turn entirely below or inward of the shelf 26, and the blades 35 and 36 may be completely turned, as indicated by the dotted circle in Fig. 1, without engagement with any part of the releasing lever 15. The first manipulation of the key to release or unlock the lock is to force the same not quite inward to its limit, but as shown in Fig. 5, in which position its slit 37 will be in line with the shelf 26, and the blades 35 and 36 will work one on each side of the said shelf. Then the key should be turned toward the right until the outer blade 36 engages the detent 29 and forces the same out of engagement with the recess 19 of the releasing-lever 15, thus releasing the said lever 15 and permitting it to be thrown downward or into its intermediate position (indicated in Fig. 2) under the camming action of the spring 17. Next the key is turned backward toward the left into line with the opening 27, is then forced inward to its limit, so that both of its blades will move inward of the shelf 26,and is then turned onward toward the left into engagement with the free end of the releasing-lever 15., and this movement is continued until the free edge of the blade 36 engages the notch or shoulder 18 of the said lever, this engagement being indicated by a slight clicking noise or jar. This position is indicated in Fig. 3. Now by turning the key again toward the right the releasing-lever 15 is caused to push or force the locking-yoke 10 toward the right,

so as to disengage the hooks 11 from the hooks 7 of the lid-strip 8, thus releasing the said strip and permitting the lid or cover of the trunk or chest to be opened, as indicated in Fig. -L. Vhen the lock-lever 10 is forced to its extreme position toward the right, the spring 25 forces the expanded lower end 23 of the plunger or slide 22 into the notch 24 of the said yoke 10, and thereby temporarily holds the same in the said position, (indicated in Fig. 4,) in which position it will remain until the lid or cover of the chest is again closed and one of the hooks 7 engaged with the upper end of said plunger or slide 22, thereby forcing the same downward and releasing the said locking-yoke 10 and permiting the same to be thrown toward the left or back into its locking position under the action of the spring 13. At such time the lid or cover of the chest will be again locked in its closed position, (indicated in Fig. 1,) but the releasing-lever 15 will be held in its intermediate position. (Indicated at Fig. 2.) It will be understood that the detent orlever 29 as soon as released will fall to its limit against the stop 31 and will be in position to again engage with the depression 19 of the releasing-lever 15 when the said lever is forced to its extreme position toward the right. To force the said lever 15 to its extreme position toward the right, the key is turned toward the right, and under this movement of said lever the inclined or cam surface 20 engages the end of finger 32, and thereby springs the said detent sufliciently to permit the engagement of the said finger 32 with the said recess 19. The setting of the releasinglever 15 in this position (indicated in Fig. 1) makes it more difficult for a person not understand ing the proper manipulation of the lock to unlock the same, even though in possession of the key.

It will of course be understood that I do not limit myself to the construction above specifically described, but, on the contrary, that my invention is capable of many modifications as to these details.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. In a lock, the combination with the spring-pressed reciprocating lock yoke 10 having the books 11, of the releasing-lever 15 pivoted thereto and subject to the action of the spring 17, the detent 29 engageable with said lever 15 to hold the same in an inoperative position, which detent is releasable by a key, and which releasing-lever is movable from an intermediate into another extreme position in which the key, acting thereon, will force said lock-yoke 10 into an unlocking position, substantially as described.

2. In a lock, the combination with a lookyoke 10 subject to the spring 13, of the releasing- lever 15, 16, subject to the spring 17, the shelf 26 within the lock-case, the pivoted detent 29, 32, engageable with a recess 19 in the free end of said lever 15, and the key 33 having a pair of blades 35, 36, spaced at 37, said parts operating substantially as described.

The combination with the spring-pressed lock-yoke 10, 11, provided with the springpressed releasing- lever 15, 16, pivoted thereto and provided at its free end with the notch 18 and depression 19, of the shelf 26 cut at 27 and 28, the detent 29, 32, pivoted to said shelf for engagement with said depression 19, and the spring-pressed plunger or slide 22, 23, under strain to hold said lock-yoke released, and itself released by the closing movement of the part to be locked, said parts operating substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ANDERS ANDERSON.

Witnesses:

OLE SANDUN, CARL E. JoHNsoN.

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