US944126A - Can-opener. - Google Patents

Description

M. DESOTELL.

CAN OPENER.

APPLICATION FILED NOV. 25, 1908.

944,126. Patented Dec. 21, 1909.

3 SHBETS-SHEET 1.

314mm For Jfahs DQ502821 Witness M. DESOTELL.

CAN OPENER.

APPLICATION FILED NOV. 25, 1908.

Patented Dec. 21, 1909.

3 SHEETS-SHEET 2.

M. DESOTELL.

CAN OPENER.

APPLICATION FILED NOV. 25, 1908.

944,1 526. Patented Dec. 21, 1909.

3 SHEETS-SHEET 3.

BEST AVAILABLE C3 .u

MEDOS ,DESOTELL, 0F MARQUETTE, MIoHIGA 'Nw CAN-OPENER.

Application filed November 25, 1908. Serial No. 464,445.

To all whom it may concern:

Be it known that I, Mnoos Dnso'rnnn, a citizen of the United States, residing at Marquette, in the county of Marquette and State of Michigan, have invented certain new and useful Improvements in Can-Openers, of which thefollowing is a specification.

My invention relates to improvements in can openers, and more particularly to' animproved machine of this character adapted to be permanently attached to a wall or other support and be located in convenient reach of an operator to manipulate the same and open a can. v

The object of my invention is to provide an improved can opener having an improved rotary mechanism for operating the can opening knife and equipped with means for adjusting the machine to accommodate any size of can.

A further object is to provide improved mechanism for clamping a can, and improved means for opening the same.

A further object is to provide improved mounting. for the opener or cutter which will permit the latter to be adjusted radially to cut an opening in the can of the desired diameter.

A further object is to provide improvements of this character which will be extremely strong and durable, and which can be easily operated-to quickly cut a circular or segmental opening in the can.

WVith these and other objects in View the invention consists in certain novel features of construction, and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings Figure 1,

is a view inside elevation illustrating myimprovements. F 1g. 2, 1s a plan vlew of the cansupporting platform. Fig. 3, is a view in section on line 3-45 of Fig. 2. Fig. 4, is a lower face view of the rack 25 and co 'operatin parts. Fig. 5, is a view in cross section t rough the cutter carrylng slide.

Fig. 6, is a detail perspective View illustrating the dog 15 and rack 14. Fig. 7, is a perspective view of one of the clamping members.

l-represents a base bracket having an integral plate 2 at one end, and the latter provided with a series of openings to receive screws or other similar devices for securing the bracket to a wall or; other support. The

Specification of Letters latent.

' turned, both screws 7 and B w illlbe each other, or away fron Patented {I e-w raw a fa base 1 is made with strengtlienl igifrabs,1or,

to its upper face. This] latform, v s,,pr, erably circular in shapgj d,]i s madejjgit two slots 4 as clearly shbwi njfi FiQQ, These slots if extended would,bieparalleldg ihejrj terminate short of thewge'nterj," f e and are adapted to recei lu'gs I pending from curved clamping. a ,2 e. er, movable on the platform ig, andtheg; are guided in the slots 21;? Theseiiltrgsaremade with screw threadedgopeiiings o, ceive the threaded intermediate;ppntions off, screws 7 and 8 respectively. 'Th screws' 7170 and 8 are made smooth atltheir ends'jand are;' supported in bearings 91in gtheb 'ase ,ar1':1', one of said screws projects outwalgd'beyon H the base, and is keyed'ifio a handfwh l" to turn the same. .1. i v The screws 7 and 8 atft heir inner a e nt-f ends have intermeshing' pi nionsl'l'lflfi'riedl thereon, so that whentlie' Ilian u neously revolved to mora ne a threads of. these screws'are ispbse when the clamps are moved; ii always moved in 'oppositfdiretioiis, or other words will be i case may be. Q, i it .f

The base bracket 1 is jgnildeiw-ithfaii lar sleeve 12 in which a i i is secured. This stand iglL-lg'is provided, 111. one face with a toothed raokilliftojbe engaged by a pivoted dog 15, whi iiijprovidedwit an outwardly extendingg'w ei- 'htfedariii a. ed to hold the dog in yield with-the rack and afford Iii'ea and manually releasing itheidog sired. i f i i A vertically movable .hijac one end with an angular,sleev e on the standard 13, p' justed vertically thereon-,-

above referredto is pivotally' s itppp e' "be tween lugs 18 on sleevel lgarid i 3 s,. debu ante; engage-the rack 14, an support,"thebracket 16 at any elevation. This bracket 16 is made with a vertical bearingslceve 19,- in which a shaft 20 is mounted to turn, and is secured against downward movement therein by a nut 21, screwed 011 the upper end of the shaft 20, and bearing against a washer 22 located against the upper end of the sleeve 19. The 1 lower end of this shaft 20 is madc with a head 23having a central depending ten-up -40 6' and the hand wheel 10 is turned to move both clampstoward. the can and securely pin 24 to enter the center of a can top as will be explained. On this shaft just below the sleeve 19, a circular horizontal rack or gear wheel 25 is located, and is provided with a vertical central bearing sleeve 26 and radial strengthening webs 27 to withstand the necessary strains thereon. rack or gear wheel-25 is supported to turn This on the shaft 20, and'is driven-by a pinion 28 on the inner end of a shaft 29, which latter is supported in a horizontal bearing 30 at the outer, end of bracket 16; A crank arm 31 ,issecured on the outer end of shaft 29 and is of the desired length to give .the

proper leverage to turn the pinion and rack. Between the rack 25 and the head 23, a

' collar 32 on the, inner endof a radial arm i j at any adjustment. .This slide carries a 30 .dependin knife or cutter 39, which latter,

33 is mounted, and this arm is' secured to the underface of the rack 25 by means of a screw 34, so as to' compel the arm and rack to move together. This arm is rabbete'd at i-tsside to receive. and guide an adjustable slide 35 havinginwardly projecting lugs 36 -to project-into the rabbets of. the arms and hold the slide in -position thereon, and a thumb serew-37 is lgcated in this slide and is adapted to be screwed into ,any of a series of opening s 38in the arm to lock the slide is prefer-a 1y of the shape shown',and sharp ened at both edges, so as to cut when moved in eitherdirect-lon. A coiled spring 40 is located around the standard 13 above the base 1, so as to cushion the fall of the upper bracket 16, if the dog 15 releases its hold, and hence prevent injuryto the machine.

The operation :of my improvements is as follows: The can to be opened is placed upon the center of platform 3 between the clamps would do this before allowing the upper bracket to descend. W .n the pin 2% and the cutter 39 are projected through the upper end of the can, the operator turns crank -Jh shaft 29, and pinion 28, to compel rotary motion ofthe rack 25 and the cutter arm 34,-so as to swing the cutterin horizonlal plane in the arcof a circle, to cut a circlllar opening in the can top. The uppen-bracket 16 can then be elevated and supported by its dog 15, when thecan can be freed from the clamps by turning the hand wheel 10,. and the device be ready for a new operation.

It is to be understood that while most cans are of circular forn1,-iny improvements are not restricted to any shape of can, and a great manychanges might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not restrict myself to the precise details set forth, but consider myself at liberty to-make such changes and alterations as fairly fall within the spirit and scope of my invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a machine of the character described,

the combination with a base, a horizontalv plate thereon having parallel slots, clamps on said plate, lugs on the clampsprojecting through the slots, screws arrangedlicneatli said plate and having bearings in the base, said lugs being threaded on said screws, lIltermeshing gears on sald screws, and means .for turning one of said screws.

- 2. In a machine of the character described, the combination with a base, means for supporting the base, a standard on said base. a. bracket having vertical movement on the standard, a toothed rack on the standard, a

dog on the bracket engaging the said rack.

an outwardly extending"weighted arm on said dog, a rotary cutter carried by said

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