US1497248A

US1497248A - Can-cover lock

Info

Publication number: US1497248A
Application number: US604004A
Authority: US
Inventors: Thomas B Searle
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-11-29
Filing date: 1922-11-29
Publication date: 1924-06-10
Anticipated expiration: 1941-06-10

Description

CAN COVER LOCK Filed Nov. 29, 1922 Patented .lune lil, 1924?. Y

rms-s 'l THOMlS B. SEARLE, OF SYRACUSE. YORK."

CAN-COVER Loox. v

Application filed November 29, 1,932. Serial No.r 604,004.

To all whom t may concer/n.

D#e it known that l, .THOMAS B. SEARLE, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New Yorln'have inventedcertain new and useful lmprovements in Can-Cover Locks, ofwhich the following is a .specification. l

This inventionrelates to improvements in garbage -pails and like receptacles V`and to the rcovers therefor, and has for its object to provide novel, simpleA and elfective means for locking the covers of various receptacles in-the ,closedpositiom for preventing dogs andfotherL animals from removing the Vcov- ,ers and gaining access to `the contents'of the receptacles; the said locking means being effective for preventing thevwind-and ordinary handling from displacing the covers. l

, VI vattain these-objects 4-by the means set forth inthe detailed description which follows, and as illustrated by the accompanying1 drawing, in which- L. *figure lis, a top-plan view ,Of a garba e Vcan to which one' form of my locking mec an-ism-is -applieda "Fig-Qis a similar view of abi receptacle to which a slightly modied locking mechanism is applied. Fig. 3 is a sideelevation and partial central vertical section, the latter being taken on line 3-3 of Fig. l. Fig. 4 is a similar view, wherein the section is taken on line 4-4 of Fig. 2. Fig. 5 is a top-plan view of the locking mechanism shown in Figs. 1 and 3. And Fig. 6 is a similar view of the locking mechanism shown in Figs. 2 and 4.

In the drawing, 2 represents the cylindrical body of the receptacle, having a closed bottom 2', and a normally open top 2a, which is preferably surrounded by the usual rolled bead 2b for strengthening the top. Below the bead 2b the body 2 is operated upon either by spinning or by suitable dies for providing a continuous inwardly facing groove 2, which is disposed in a plane parallel to the top 2a. 3 represents the cover, which is circular and hollow, and preferably consists of a convex top 3', and a continuous drooping flange 3a, the said flange being of such diameter as to loosely overlap or telescope the top 2a of the can 2, and when properly adjusted, the under face of the top 3 rests upon the bead 2b, thereby substantially sealing the mouth 2a. For ordinary purposes, the cover is held in place by gravity, ysupplemented by the overlapping of the Vflange 3a.

My cover locking mechanism consists of ainanuallyy rotatable member 4, which is supported by a shaft 5,v upon which the y.said member mayrotate as an axis. 6, represents a substantially U-'shaped guard, which is disposed diametrically within the cover 3, the opposite ends of said guard being rigidly secured to the top .3 of the cover, by rivets or bolts 6. ln Figs. 3 andy 5, the guard 6 is provided kwith a lug 6a, which is perforated to receive ythe shaft 5. y7 yand 7V represent similarlocking rodsor bars whose inner ends are pivoted to the disc 4 by rivets 01" bolts 7E.-

Thesef locking, rods. than extend radially, in'o'ppositefv directions, and pass loosely through uiding'v perforations 6l inthe vertical arms o the guard;v Beyond the guard, the rods 7 .and bend downwardly and then outwardly and their free ends are disposed in the planeof the groove 2C, which theyenga'ge for locking the cover in closed position., The full lines in Fig. 3 show the vfree ends of the locking rodsy engagingV the groove 2, while vthe `dotted lines show the said rods withdrawn. from the, said groove, for releasing the cover. 'The'member 4, as well as the rods 7-7 are manually operable by means of a handle 8, which may be an integral part of the disc 4. The hanle 8 is preferably disposed outside of the cover, while the member 4 is preferably disposed entirely within the cover.. For this purpose the top 3 of the cover is slotted, as at 3b. The inner ends of the rods 7-7 are preferably connected to the disc 4 at points that are eccentric to the axis 5, as best seen in Fig. 3, so that a slight rotary movementJ of the disc, by the raising and lowering of the handle 8 (see full and dotted lines in Fig. 3) effects the reciprocation of the rods 7-7, for unlocking and locking of the cover 3. To remove the cover, the operator grasps the handle 8 and lifts the same upwardly until it is stopped by the bent portions 7b of the rods engaging the ends 6 of the guards. In practice, the weight of the cover is such that the handle 8 will yield upwardly sufliciently to withdraw the rods 7-7 from the groove 2C before the cover starts upwardly. lVhen the cover is replaced on the can, the operator should depress the handle 8, until its free end comes to a stop against the top 3', as shown by full lines in Fi 3. This downward movement of the hand e forces kthe free Lends of the rods- .T--Tzinto the groove 2, and locks the cover in the closed position.

In Figs. 2, 4l and 6,4the modification consists chiefly of disposing the disc 4d` horizontally upon the` medial portion of the'4 guard 6d, and in providing a shaft 5 whose lower endV passes through theV disc and the guard,while its upper end plays ina perforation 3d of the top 3. A washer. or shoulder 5a is employed for sealing the opening in the cover, and also prevents the endwise movement of the shaft. Outside of the cover, the shaft 5 is formed into a relatively large hand-loop 5b, by which the discfld maybe rot-ated, as shown in Fig. 2, for withdrawing the rods 1 -7 from the grooveV 2C, as explained. The handles 5b and 8 take the place of the usual permanent handles commonly employed for removing and applying covers of the class. In the modified struct-ure, the can, the cover, the guard, the disc and the locking rods are ysubstantially the Ysame in structure and springs or other auxiliary. retaining parts, such as heretofore employed in devices of the class. In both forms of the device, more or less force must be applied to the handles 8 and 5b, in order to disenga-ge the free ends of the rods 7-7.

Having thus described my invention, what I claim, is-V l. The combination with av can having an annular bead pressed outwardly to form an inwardly facing groove near its open end, and a cover for closing said open end and having a ydepending flange encircling the bead of the can, of a locking device comprising a rotatable disc supported in the hollow side of the cover. a pair of oppositely facing locking rods pivoted to the discr at points eccentric to the axis of the disc, the free ends of the rods adapted to engage said annular grooves at the opposite sides of the can for locking' the cover to y the can.

2. A can, a cover therefor having a slot, a locking device for the cover comprising a member pivoted on the inner side of the cover having a rigid, curved handle eX- tending lout through the slot of the cover, a locking means operable by said member, said handle normally overlying the cover when' the latter is locked and adapted to be Vswung upwardly when removing the cover for simultaneously unlocking the latter.

In testimony whereof I afii'x my signature.

THOMAS B. SEARLE.