US604577A

US604577A - Padlock

Info

Publication number: US604577A
Authority: US
Publication date: 1898-05-24
Anticipated expiration: 1915-05-24

Description

(No Model.) C. H. BRGDEN. i

PADLOGK.

No. 604,577.. Patented May 24,1898.

Nrrnn Sra'rns a'rnn'r risica CHARLES H. BRIGDEN, OF CANTON, MASSACHUSETTS, ASSIGNOR TO SQM. HAWES, JR., OF YONKERS, NEW YORK.

enoteca.

SPECIFICATION forming part of Letters Patent No. 604,577, dated May 24, 1898.

APPGZL'GOII filed September 3, 1897. Serial No. 650,904. (No model.)

T0 @ZZ whom t may concern,.-

Be it known that I, CHARLns H. BRIGDEN,

of Canton Junction, in the county of Norfolk and State of Massachusetts, have invented certain new and useful improvement-s in Locks, of which the following is a specification.

This invention has relation to locks and latches, and particularly to that class known as padlocks and it has for its object to provide a simple lock of the character described which shall be constructed of a minimum number of parts and which shall be proof against being picked or unlocked except by means of the proper key.

Another object of the invention is to provide a padlock in which the parts may be all secured in place without the employment of screws or rivets, whereby they may be assembled with great ease and with the expenditure of a small amount of time.

To these ends the invention consists of a lock possessing those features, parts, and characteristics which I shall now proceed to describe in detail and then point out in the claims hereto annexed. Reference is to be had to the accompanying drawings, and to the letters marked thereon, forming a part of this speciiication, the same letters designating the same parts or features, as the case may be, wherever they occur.

Of the drawings, Figure l illustrates in side elevation a padlock embodying my invention in which the locking member is in the form of a pin secured upon the end of a chain, this being particularly adapted for use as a bicycle-lock. Fig. 2 represents the casing of the lock in vertical section, with the tumblers in side elevation. Fig. 3 represents a section on the line 3 3 of 2. Fig. 4 represents another embodiment of the invention, in which the locking member is pivoted in the end of the casing. Fig. 5 represents the tumblers detached. Fig. 6 represents the block which is inserted in the front end of the casing. Fig. 7 represents the block or frame inserted in the other end of the casin g and in which the hasp is hinged. Fig. 8 represents the key employed for operating the tumblers to release the locking member. Fig. 9 represents another embodiment of theinvention, in

which the locking member is pivoted directly to the casing.

Referring more particularly to Figs. l to 3, inclusive, the letter a indicates the casing, which is tubular in form, with the end a closed. In the open end of the same is forced a cylindrical plug or block b, having an axial slot b and a transverse recess or aperture b2, which when the block or plug is in place is in alinelnent with apertures a2 in the sides of the casing, near the open end thereof.

The tu mblers are indicated by o, c', and c2, respectively, and consist of flat metallic plates placed with their faces contiguous and with their upper end iitting snugly in the slot b in the block or plug b. In cross-diameter they are smaller than the internal diameter of the casing excepting at their rear ends, where they are laterally extended, as at c3, to form corners which press slightly against the inner walls of the casing. The central tumw bler c is provided witha pin projecting transversely therethrough into curved slots c5 in the other tumblers c c2.

A V-shaped leaf-spring d is inserted in triangular apertures c6 in the inner or rear ends ofthe tumblers and operates to hold the said tumblers with their median lines at an angle to each other, as shown in Fig. 3. The said tumblers are all provided with apertures c7 in their upper or outer ends,which normally do not register with the apertures a2 b2, but which when the tumblers are moved by the key register with each other and with the said apertures for the purpose of releasing the locking member. Said locking memberis indicated by e, and consists of a pin having a reduced portion e' and a pointed conical end e2. lt is formed on its outer end with an eye e3, to which one end of the chain f is secured and which has its other end secured to an eye j, secured in one of the apertures a2 in the casing. When the said locking member is thrust into the apertures a2 b2 in the casing and plug, the conical end e2 enters the apertures c7 and forces the tumblers into alinement until the said conical end passes through the last tumbler c, whereupon the spring d immediately throws them out of alinement, so that it is impossible to withdraw the said locking member without the aid of a key,the

about the aXis of the pin.

edges of the tumblers bounding the apertures cfforming stops to engage the base of the head e2 of the locking member. The rear or inner ends of the tumblers press against a coiled spring g, resting upon the end a of the casing,Which spring operates to normally thrust the said tumblers longitudinally, so that the` apertures alare slightly lbeyond the apertures h2 d2. In order to move the tumblers edge- Wise relatively to each other and longitudinally of the casing to bring the apertures c7 in alinement with each other and With the apertures a2 h2, the tumblers are provided with central apertures h, forming shoulders h. Then the keyt'being passed through the l keyhole d3 in the casing, the Wards t" engage edges in the apertures in the said tumblers@ and move them against the tension of .the f springs d and g until the said apertures c7 are in position to permit of the hasp being Withdrawn.

In Figs. t to '7, inclusive, the invention 4is i shown as embodied in a lock in which the i locking member 7c is semicircular in side elevation and is formed With a laterally-projecting pin 7a', as shown in Fig. il. The squared end 7a2 of the said member is fitted in a slot l' in a block or frame Z, Which is slipped into the open rear end of the casing a, and the pin ,76' lies in a transverse lslot Z2 in the said block, so that when the block or frame is in place the locking member may be swung The other end lof the ,casing is Aclosed by the block h, which has apertures h2 to receive the conical .end 7a3 and the reduced portion 7a4 of the locking member. The tumblers are similar to those above described and they are operated in the same manner by a key to allow the locking member to be disengaged therefrom. A spring m is placed between the shoulde-r 765 on the end k2 of the locking member and the casing, so that when the tumblers are thrust into position by a key to release the locking member the spring forces the locking member into the position shown in Fig. 4.

In Fig. 9 the locking member is pivoted in v the casing by a pin n, and the spring 0 is inserted ina socket in the said casing. In this i figure the casing is shown as being formed kof a metallic block With a cylindrical aperture therein instead of a tube.

From the foregoing it Will be observed that the parts of the lock are easily assembled and are simple and may be constructed With facility. The casing may be formed 0f a tube cut into suitable lengths, and the tumblersi may be stamped out of flat or metallic sheets.

The plugs `b and lare held in place by frictional engagement With the Walls of the casing, and When the hasp is engaged by the tumblerssaid plugs cannot be Withdrawn, as

will be readily understood. It is evident that the invention may be eml bodied in other forms, and hence I do not ini tend to be understood as limiting myself to 1 those particular locks which I have selected for 4the purpose of illustrating the invention.

Having thus explained the nature of the invention and described a way of constructing and using the same, though Without attempting to set forth all of the forms in which it may Abe made or all of the modes of its use, I declare that What I claim is- 1. In a lock, the combination with a casin g, ,of two or more flat apertured tumblers arranged side by side and movable edgewise and longitudinally, and a locking member movable into and out of an aperture in the casing, and adapted to enter the aperture in said tumblers whereby it may be locked in place.

2. In a lock, the combination with a casing having a transverse aperture in the end adapted 'to receive a locking member, and also having a keyhole, a plug kor block inserted in the said casing to close the end of the same and formed With a slot or recess, tWo or more fiat tumblers arranged in the recess, said tumblers having apertures normally out of alinement with each other and adapted to be vmoved to bring the apertures into alinement with the apertures in the casing.

3. In a lock, the combination with a tubular casing, a block closing one end thereof, and a plug or frame closing the other end thereof, of a locking member arranged to have its ifree locking end enter an aperture in the cas- `ing and block, and locking devices in the casing adapted to engage the said locking members when it is so inserted.

4. A lock comprising in its construction a cylindrical casing, one or more fiat tumblers arranged side by side in said casing and having stops to normally prevent movement of the locking member, a locking member adapted to be engaged by the tumblers, and means on the said tumblers whereby they may be engaged by a key and moved thereby longitudinally and edgewise to liberate the end of said locking member.

5. In a lock, the .combination with a tubular casing, and locking-tumblers in said casing, of a frame or plug closing one end of the casing, and a locking-member hinged in said frame or plug and swinging about the axis transverse thereto and adapted to have its locking end engaged by the tumblers at the other end of the casing.

6. In a lock, the combination with a cylindrieal casing, locking-tumblers in the casing, and alocking member, of a removable plug 0r frame inserted in the end of the casing in which the said locking member is hinged, and a spring bearing against said locking member to hold it normally in its unlocked position.

7. In a lock, the combination with a casing having `a straight cylindrical aperture and locking-tumblers in said aperture adapted to be moved both longitudinally and transversely edgewise, of a locking member hinged IIO at one end of said easing and adapted to be engaged by the tumblers at the other end of the casing.

8. A look comprising in its construction an open-ended easing and tumblers in said oasing free from Connection therewith, a block closing one end of the easing and held therein by frictional Contact with the Walls of said casing, said block and easing having bolt-receiving apertures, a plug or frame closing the other end of the easing and held therein by friotional Contact with the walls of said easing, and a looking member hinged in said frame and adapted to engage the said tumblers and the said apertures, whereby all of said parts are securely looked in and with the casing.

` CHARLES H. BRIGDEN.

Witnesses:

MILTON S. BRADT, JOHN J. WALSH.