US1252815A

US1252815A - Padlock.

Info

Publication number: US1252815A
Authority: US
Inventors: Feodor Kovalski
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-07-16
Filing date: 1917-07-16
Publication date: 1918-01-08
Anticipated expiration: 1935-01-08

Description

F.. KOVALSKI.

PADLOCK.

APPUCATION FILED JULY 16| 191?- 1925298 Jan. 8, 3 SHEETS-SHEET 1- FIG. l FIG.. 2.

I". KOVALSKI.

PADLOCK.

APPLICATION FILED JULY 15| 1917.

15,252,815. PatentedJan. 8,1918.

3 SHEETS-SHEET 2.

FIG. 5y

F; KovALsKl.

PADLOCK.

APPLICATION FILED vIULY I6. 1917'.

1,252, l 5. l Patented Jan. 8,1918.

3 SHEETS-SHEET 3- FEODOR KOVALSKI, OF WEST LYNN, MASSACHUSETTS.

PADLOCK. f

Specification of Letters Patent.

Patented Jan. 8, 1918.

Application filed uly 16, 1917. Serial No. 180,841.

To all whom t may concern."

Bc it known that I, vFEoDoR KovALsnI, a citizen of Russia, residing' at West Lynn, in the county of Essex and lState of Massachusetts, have invented certain new and useful Improvements in Padlocks, of which the following is a specification.

This invention relates to new and useful improvements in padlocks. i

The' primary object of the invention is the provision of a key-operated padlock 'so arranged that a person unfamiliar with lts manner of operation will Yhave great Ydiiiiculty in manipulating -theilock mechanism while the same is readily locked and unlocked 'by any authorized person provided with the proper-"key,

A further object of the device is theprovision Aof a padlock arranged with the shackle releasing means normally guarded by a devicev which. is only operable in a certain peculiar manner and whereby the lock possesses great security against being opened by unauthorized persons.

A still further object Vof thev device is the provision of a padlock havin' a shackle release and a guardv therefor, oth of which are adapted'for-separate and successive actuations by a single key, the entire structure possessing great. strength and security.

`In the 'drawings forming a part'Y of this application Y and in which like. designating characters Y'refer to corresponding parts throughout the several'views, f

Figure 1 is a vfront elevation of the device in its normally locked arrangement,

Fig. Qis a similar view with the guard plate shifted for permitting lthe release of the lock mechanism.

Fig. 3 is a view .similar to Fig. 1 wit the guard and cover plates removed.

Fig. 4 is a viewlsimilar to Fig. 2 with the guard and cover plates removed and showing the key in section positioned as having released the shackle,

Fig. 5 is a view similar to the key in section and in position as having released .the guard plate.

Fig. 6 is a substantially central sectional view taken through the device with Ythe Fig. 3 showing mechanism in its normally locked arrangement.

Fig. 7 is a View partly in side elevation and partly in section similar to that shown in Fig. 6 and with the key inserted for re-Y leasingthe guard plate. Y

Fig. 8 is a view similar to Fig. 7 with the guard plate mechanism released. Y

Fig. 9 is a similar sectional view looking in theopposite direction from that shown in Fig. 6.

Fig. 10 is a plan .view of the underside of the guard plate.

F ig'. 11 is a. perspective view of the upper side of the cover plate.

Fig. 1:2 is a perspective view of the mechanism mounting plate.

13 is a perspective view of the shackle bolt and its releasing lever.

Fig. ll is a perspective view of the guard plate latch and spring. v

Fig. 15 is a perspective view of the spring catch employed with the guard plate mechanism. v

Fig. 16 is a perspective view of a portion of the mounting plate and the releasing cam for the latch.

Fig. 17 is a detail sectional view taken through the camand the 'adjacent portion ofthe lmounting plate and the back platc of the llock and Fig. 18 is a perspective view of the key employed with the device.

Referring more in detail. to the draw-y ings a padlock casing 10 of the usual substantial circular form is provided having a backk plate 11 and av forwardly positioned cover plate 12, lthe latter being removably secured upon the casing 10 by suitable screws 13 .extending through perforations 111 in the plate 12 and threaded into .side lugs 15 arranged within the casing. The side wall 16 of the casing 10 has one fiat side 17 with a swinging shackle 18 pivoted as at 19 adjacent one end ythereof and between the base plate 11 and cover plate 12 while the casingv end 17 is provided `with ya receiving opening 20 adjacent its opposite end adapted for the reception of the terminal loop 21 of the shackle, the said loop projecting inwardly of the casing 10 when the shackle is closed.

A mounting plate adapted for positioning the lock mechanism within the casing 10 is arranged therein having feet 23 raising upon the back plate 1l for spacing the plate 22 from the back plate while peripheral notches 24 are arranged inthe plate 22 for.

accommodating the aforementioned lugs 15. I Parallel upstanding ears 25 are struck out of the plate 22 yhaving guide openings 26 therethrough adapted for the slidingref. ception of the shackle bolt 27 while a leaf spring 28 having one end anchored to an upstanding post 29 carried by the plate22 f engages the adjacent end of the bolt 27 for normally maintaining the latter projected in its securing position inwardly of the aforementioned casing end. opening 20 with the bolt 27 Aextending through the loop 21 of the shacklev 18 when the latter isclosed.

A guard plate 30 of substantially the same form and dimensions as the coverplate12 is flatly arranged for rotation upon the latter by being centrally piv-oted thereto by a rivet 3l, the said guard plate having a central key hole slot 32 adapted to' be brought into register with either one of two similar

key hole slots

33 and 34 provided through the cover plate 12. A retaining latch 35V'is provided for the guard plate 30 being pivoted as at 3,6 to a post 37vcarried by the mounting plate 22, an upstanding finger 38 being arranged at one end of the latch adapted for normally positioning within the perforation 39 of the cover plate 12 and for locking engagement within a keeper socket'40 in the lower side of the guard plate 30 when such socket is brought into alinement with the perforation 39. A

leaf spring 41 secured to the cover plate 12 provided upon the catch 46 at its free end' normally maintained within a perforation 50 of the mounting plate 22 by means of a spring 51 carried by the catch and engaging the back plate 11 of the casing. The cani 43 is so positioned beneath the latch 35 as topbring the arcuate side flange 52 thereof into 'elevating engagement with either the,

securing ledge 53 or the releasing ledge 54 of the latch during the revolution ofthe cam disk 43, itbeing noted that the

ledges

53 and 54 are arranged at opposite sides of the pivot 36 of the latch 35 with the ledge arranged adjacent the locking linger 38. An opening 55 is provided through the disk 43 adapted for receiving.the,catch tooth 49 vwhen the opening 55 is in alinementwith the mounting plate perforation 50 and which occurswhenthe flange 52 is beneath the latch ledge 53 with the finger 38 of the latch extending through the perforation 39 of the cover plate 12 and into the keeper socket lQ-ofthe guard plate 30. 'It .willbe understood that the arrangement just described occursy when the lock is in its normally secured arrangement with thel key holel slots 32V and 33'in alinement'with,each other and at which times the

cutawaysides

56 and 57 of the plates 30 and' l2 respecel tively are in'alinement with each other as well'as with the similarcutaw'ay side portion 58 of the back plate 11,. andibeing ad#l jacentvthe liatend 17' lo f'ithe casing wall 16.V

A key 59' is provided for the lockadapted for insertion through thel slotv 32 of the guard plate 30 and for' arrangement within.

the cover plates slot `33whenly it is desired to `release the guardplate 30 by manipulating the latch 35 while the .key 59-y is arranged' through thel covery plate slot 34 after tlfie` guard'plate has been released and" shifted for'bringing the slots 32and 34v intoregis? ter for the accommodationof the'key for the purpose of retracting the bolt 27 to,vr release the shackle 1.8. With slots 32and33 in-reg-I ister as arranged when the lockfis in'its normal condition, the key 59A will be insertedthroughthe side slots Witlithe cen- K tral borer60 of the key arranged'upon the post 45. By turning the ykey 59,`the depending toe 61 ofthe bit 62 of the key maybe positioned through the oplening55l of the cam disk 43 for engaging the catch tooth 49, By pushing inwardly upon the key 59 when in such position, the catch 46 will be depressed against theaction of the spring 51 and the tooth 49` being released from the cam 43, a turning off the key 59 will shift the flange 52 vfrom beneaththe latch ledgey 53 to a point beneath the ledge 54 thereof and. which movement will depressthe finger 38 withdrawing the same from the socket 40 of the guard plate 30; rUpon removing the key 59, the flange 52 will maintain theflatch 35 released permitting the guard plate 30. to

beturned' upon its pivot 31 so. as Yto bring..

the slot 32 with thev guard plate in register with the slot 34 of the cover plate 12. f The key 59 may then be insertedE through, the;

bolt and lever for normally maintaining the lever extended in a direction toward the key post 62. With the key mounted upon the post 62 and turned clockwise as shown in Fig. 3 of the drawing, vthe key ward 62 will engage the lever 63 swinging the same toward the casing opening 22 and permitting the edge 66 of the bit 62 to rest within the groove 67 at the front end of the level' 63 as indicated by dotted lines in said ligure. A reversal of the movement of the key will then force the lever G3 in the direction of the shackle hinge 19 sliding the bolt 27 therewith and releasing the same from the loop 21 as above illustrated in Fig. 4 of the drawing. It will be evident that the shackle 18 may then be swung outwardly while upon removing the key 59 from its engagement with the lever 63, the spring 28 will again project the bolt 27. The key 59 may be readily withdrawn from the lock when desired and by again shifting the plate 30 the key may be positioned upon the post 45 for returning the disk 43 to its position for rengaging the latch 35 with the plate 30. It will be obvious that the bolt 27 is normally projected when the key is out of the lock while at such times the shackle 18 may be engaged by the bolt or not as found desirable, while the disk 43 may be readily shifted by the key for either locking or releasing the guard plate 30.

A padlock is provided requiring only one key and so constructed that a person unfamiliar with the manner of operating the mechanism by means of the key will be unable to retract the bolt 27 and release the shackle 18 without great diliiculty regardless of which one ot' the

cover plate slots

33 or 34 is accessible through the guard plate slot It will also be seen that the key 58 may be completely revolved in either direction when positioned upon the post 62, the ward 62 of the key being adapted to hit the lever 63 and move the same aside, permitting the key to revolve. Itwill be noted that extreme care must be taken in turning the key 59 for the purpose of retracting the bolt 27 in seating the ward end 62 within the lever groove 67 when the ward and lever This are positioned in angular relation.

lock may be employed wherever it is found desirable to arrange a padlock for insuring great security.

What I claim as new is 1. A padlock comprising a casing, a locking bolt arranged therein, a cover plate for said casing having two key hole slots therein, a guard plate superposed on said cover plate, one of the said slots being adapted for the reception of a key for actuating the said bolt, a locking latch for said guard plate, a shifting cam for said latch revolubly arranged within said casing, a post upon said cam normally positioned in alinement with the other one oi' said cover plate slots and a key releasable spring catch for the said cam arranged adjacent the cam.

A padlock comprising a casing, a shackle upon said casing, a locking bolt for the shackle, a cover plate for the casing having a slot adapted forthe reception of an operating key for said bolt, the said cover plate provided with a second slot adapted for the reception of a releasing key for said latch, and a guard plate for said slots pivoted upon the cover plate and arranged with a key receiving slot adapted to register with either of the slots of said cover plate selectively, and a latch within the casing controlling the movement of the guard plate.

8. A lock comprising a casing, a sliding bolt within the casing, a cover plate for the casing having a key receiving slot adjacent said bolt, a guard plate revolubly mounted upon said cover plate having a slot therein adapted to register with the slot of the cover plate, a retaining latch for said guard plate arranged within the casing, a controlling cam for said latch journaled within the casing, a spring catch for the cam arranged adjacent the latter, a key adapted for releasing the said catch and operating the said cam, the said cover plate being provided with a second slot adapted to register with the slot of the guard plate and arranged outwardly of said cam adapted for the reception of said key.

In testimony whereof I affix my signature.

FEODOR KOVALSKI.

Copies of this patent may be obtainedfor ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.