US2422221A

US2422221A - Power-driven reciprocating cutter

Info

Publication number: US2422221A
Application number: US592633A
Authority: US
Inventors: Authnal L Candland
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-05-08
Filing date: 1945-05-08
Publication date: 1947-06-17
Anticipated expiration: 1964-06-17

Description

June 17, 1947.

A. L. CANDLAND POWER DRIVEN RECIPROCATING CUTTER Filed May 8, 1945 2 SheetS -Sheet l 7 m m I June 1947. A. L. CANDLAND POWER DRIVEN RECIPROCATING CUTTER Filed May 8, 1945 2 Sheets-Sheet 2 iindviahv Patented June 17, I947 UNITED STATES PATENT OFFICE 2,422,221 PGWER-DRIVEN RECIPROCATING CUTTER Authnal L. Candland, Vista, Calif. Application May 8, 1945, Serial No. 592,633 6 Claims. (81. 30-272) 2 This invention relates to a power-driven recip- Figure 6 is a sectional view taken substantially rocating cutter, and more particularly to such a along the line 6-4: of Figure 5. device adapted for the use of butchers or similar Figure 7 is an end view of the construction disindividuals engaged in the cutting of meat. closed in Figure 2, the cover plate being removed,

A primary object of this invention is the proviand certain portions thereof being indicated in sion of an improved cutting blade, one edge of section.

which has saw teeth, flexibly mounted and adapt- Figure 8 is an enlarged plan view of a construced to be driven by a flexible cable to impart a retional detail.

ciprocatory motion to the blade for severing cuts Similar reference characters refer to similar of meat, and sawing through the bone thereof. 10 Parts throughout the-several views of the draw- An additional object of the invention is the pronesvision of such a device wherein the actual cut- Having now particular reference to Figu e ting implement approximates in size and. configuthere is generally indicated at ID a butchers block ration a conventional butcher knife, and which of any desired conventional type to which is semay be readily handled and operated by either cured, as by means of clips ii, an upright I2, right or left handed persons. terminating in an arm l3 extending over the block whereby the saw and its associated motor may be sired conventional type. An electric cord I6 leads readily earned from place to place as desired, from the motor housing l5 through the interior Still another object of the invention is the pro- 0f t pp t I? a t at in a p u vision of such a device characterized by means Which y be plugged O a y desired Source Of whereby the blade may be readily and quickly current.

replaced as may be necessary. 5 The motor housing I 5 terminates in an en- A still further object is the provision of such lar d p ion 8 having a recess I9 therein bl d operate, 39 including an eccentrically set pin 23 and a counout hereinafter and disclosed in the accompanyhe Opposite end of whlch 1S p a y ed s mg drawings, wherein there is shown a preferred y a D V t 27 o an extremity 28 of a flexible shaft embodiment of this inventive concep which extends through a fieXlble cOhdult 30 In t drawings: to the handle, generally indicated at 3| of the Figure 1 is a side elevational view of one form D n w mechanisme lower p of device embodying the instant invention show- 151011 of the extending portion I3 i p o i d W th jng the motor and support for the game in as a threaded nipple 32 {70 Which the conduit 30 is ciation with a butohers block. adapted to be secured, as by means of a threaded Figure 21 an enlarged fragmentary detail View, collar 33 An electric cord 34 extends from the certain parts thereof being broken away dismotor housing I5 130 the h d 3| a m y e closing the connection of the motor mechanism s cu d t th c nduit h us n as y a s f with the flexible drive shaft. c ips Figure 3 is a, top plan View of the saw meeha- From the foregoing, it will now be seen that nism, certain concealed portions thereof being When iIhe meter is n ed in a ma er to be indicat d i dott d li described hereinafter, rotation of the drive shaft Figure 4 is an end elevational iew of the meeh- 2| is translated through the eccentric member anism disclosed in Figure 3, as viewed from the 22 to reciprocatory mo n the extremity 28 left, the connection to the flexible shaft being of the flexible shaft 29, and hence to the shaft. omitted. Referring now particularly to the handle 31, Figure 5 is a sectional view taken substantially 7 it will be seen that the same is of substantially along the line 55 of Figure 3, as viewed in the the configuration of a normal knife handle and direction indicated by the arrows. 6. terminates at one extremitv in a Mme-l.

3 36 adapted to threadedly engage a collar 31 33, to the extremity of The fiexible shaft 28 ex- 39 into a recess and is se- 'ple secured, as by a flange the flexible conduit 30. tends through a suitable bore 53 in the interior of the handle 3i, cured, as by suitable threading or the like, to a rigid member M bifurcated, as at 42 (see Fig. 8), and pivotally secured to a reciprocating block 43 provided with rollers 4d which engage in suitable channels 55 formed within the recess it. The block d3 has pivotally mounted thereon, as by a pivot $6, an elongated member 4i adapted to be passed. through a corresponding elongated slot QB in the extremity 49 of a blade generally indicated at 59. Thus, it Will be seen that reciprocation of the flexible shaft 29 is in turn imparted to the blade The blade 59 is provided on one surface with a saw edge 5i, the teeth of which are inclined toward the handle 3| in such manner as to impart a drag action when the blade is reciprocated. The opposite edge of blade 553 is provided with a, knife edge 52 which terminates in an arcuate extremity '53 to provide a close cutting surface adjacent the blade 5|. As best shown in Figure 3, one side of the aperture is closed as by a removable plate 54 pivotally mounted, as at 55, on the handle Si in such manner that ready access may be had to the member s! to permit replacement of the blade as may be necessary or desirable.

The electrical connection as terminates in a switch mechanism 56 of any desired conventional construction, which is engaged, as by a lever 51, with a conventional switch button 58 of any desired type, whereby themotor may or off from a convenient point to reciprocate the blade 50 when desired.

From the foregoing, itwill now be seen that there is herein provided an improved power saw adapted particularly for'butchers use, wherein the saw blade may be reciprocated to sever the bones of the meat, and wherein the blade may be reciprocated if desired to sever the meat, which may be readily supported adjacent the butchers block, and which, with its associated motor housing, may be readily removed therefrom when it is desired to cut or carve meat at a location remote from the butchers block, as for example, within the refrigerator.

It will also be seen that the device hereinbefc-re shown and described accomplishes all the objects of this invention and others, including many ad vantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limiting sense. 7

I claim:

1. Apower driven cutting tool including a hollow handle of square cross section, upper and lower guide channels in said handle disposed to one side of the vertical, longtudinal median plane of, said handle, a block slidably supported in said guide channels, detachably securing said said handle having a slot at one said blade being. reciprocable through said slot, a flexible ,reciprocable cable extending into the other end of said handle and pivotal means connecting said c ble to said block. 7 V

2. A power driven cutting tool including a holw flnsne cross section, upper and be cut on lower guide channels in said handle disposed to one side of the vertical, longitudinal median plane of said handle, a block slidably supported in said guide channels, a cutting blade, means detachably securing said blade to one side of said block, said handle having a slot at one end thereof, said blade being reciprocable through said slot, a flexible reciprocable cable extending into the other end. of said handle and pivotal means connecting said cable to said block, the side of said handle adjacent said blade being pivoted to said handle at one end thereof, to form a closure member for the interior of said handle.

3. A power driven cutting tool including a hollow upper and lower guide channels in said handle disposed to one side of the verticle, of said handle, a block slidably supported in said guide'channels, a cutting blade, means detachably securing said blade to one side of said block, said handle having a slot at one end thereof, said blade being reciprocable through said'slot, a flexible reciprocable cable extending into the other end of said handle and pivotal means connecting said cable to said block, the side of said handle adjacent said blade being pivoted to said handle at one end thereof, toform a closure member for the interior of said handle, said blade being secured to a slide of the block, said side of the block being adjacent to said closure member.

l. A power driven cutting tool including a hollow handle of square cross section, upper an lower guide channels in said handle disposed to one side of the vertical, longitudinal median plane of said handle, a block slidably supported in said guide channels, a cutting blade, means detachably securing said blade to one side of said block, said handle having a slot at one end thereof, said bladewbeing reciprocable through said slot, a flexible reciprocable cable extending into the other end of said handle, pivotal means connecting said cable to said block, said block comprising and lower edges received in said guide channels, and rollers on said edges bearing in nels.

5. A power driven cutting tool including a hol low handle of square cross section, upper and lower guide channels in said handle disposed to one side of the vertical, longitudinal median plane of said handle, a block slidably supported in said guide channels, a cutting blade,' means detachably securing said blade said block, said handle having a slot thereof, said blade being reciproca le through said slot, a flexible reciprocable cable extending into the other end of said handle, and pivotal means connecting said cable to said block, said pivotal means including a member attached to said cable at one end, the other end of said mem- 60 her bifurcated, said block being pivoted in said bifurcation. V I

6. A power driven cutting tool including a hollow handle of square cross section, upper and lower guide channels in said: handle disposed to one side of the vertical,

longitudinal median plane of said handle, a block slidably supported in said guide channels, a cutting blade, means detachably securing said blade to one side of said block, said handle having a slot at one end thereof, said blade being reciprocable through said slot, a flexible reciprocable cable extending i into the other end of said handle, and pivotal T means connecting said cable to said block, said pivotal'means including a member attached to said cable at one end, the other end ofsaid' mem her being bifurcated, said block being pivoted in said bifurcation, said other end of said member dle.

AUTHNAL L. CANDLAND.

REFERENCES CITED The following references are of record in the file of this patent: