Патент USA US2100808код для вставки
Nov. 30, 1937. A. .1. KIRKLAND 2,100,808 GRINDER AND SHARPENER ATTACHMENT FOR MEAT GRINDERS Filed Dec. 14', 1936 INVENTOR.‘ 4422M?” z/ Air/Hana! ) 4622a,; Z2282 ' ’ TTORNEY. ' Patented Nov. 30, 1937 UNETED STATES PATENT GEE‘! 2,100,808 GRINDER AND SHARPENER ATTACHMENT ' FOR MEAT GRINDERS Andrew I. Kirkland, West Palm Beach, Fla. Application December 14, 1936, Serial No. 115,826 4 Claims. (01. 51-—241) My invention relates to knife grinding and a tongue l6 of a grinder shaft H. The boss M sharpening means, and more particularly to a as now constructed, has an annular recess l8, device which may be readily attached to the motor of a meat grinder, and it consists in the 5 constructions, arrangements and combinations herein described and claimed. concentric with the shaft l2 and receives there in a bushing N3 of the shaft IT, as will now be It is an object of the invention to provide an attachment embodying a shaft having mounted thereon the necessary grinding and sharpening disks, as well as buffer disk, the shaft being con structed for quick and rigid attachment to the drive shaft of the motor. It is also an object of the invention to provide an adjustable pedestal support for the shaft of 15 the attachment, permitting its ready adjustment to various constructions of meat choppers or grinders. It is a further object of the invention to pro vide a separable shaft, each section including 20 one or more grinding or buffing elements, there fully described. The shaft ii and shaft ll’ constitute the mounting means for the grinding disks, buffers, etc., the shafts being arranged in ‘end to end rela tion, one end of the shaft ll’ being journalled in the boss H3 while the opposite end of the shaft I?’ is journalled in an adjustable pedestal 26. The shaft I‘! has a pair of spaced washers 2i and .22, ?xed thereto and interposed between these washers there is a sleeve bearing 23, the latter being journalled in the bushing it. The 16 bushing 19 snugly fits within the recess l8 and is locked therein by a set screw 2%. Qbviously, the mounting of the shaft ll so as to mate the slot I 5 and tongue l5, rotation of the motor shaft l2 will cause rotation of the shaft ii and its 20 by making it possible to employ a single grind associated grinding disk 25. ing element, if desired, or the entire number of elements may be rotated as a unit. It is a still further object of the invention the shaft I‘! terminates in a tongue 26 adapted to inter?t with a slot 2'! formed in the end of the The outer end of tachable to one end of the grinder shaft and shaft H’, and preferably a sleeve 28 is disposed around the juncture of the shafts to maintain alignment and engagement of the slot and permitting swinging movement of the shaft to ' tongue. a position clear of the driving motor. The outer end of the shaft H’ is revolubly mounted in a bushing 29 journalled in a collar 25 to provide a pedestal support having means at Additional objects, advantages and features of 30 invention will be apparent from the following description considered in conjunction with the accompanying drawing, wherein Figure l is a side elevation of my invention as installed upon a meat chopper or grinder. Figure 2 is a similar view showing a single 35 emery wheel associated with the driving motor, and also showing the position of the other emery wheel and buffer when not in use. Figure 3 is a fragmentary perspective view 40 illustrating the iii-operativev positions of one of the emery wheels and buffer. Figure 4 is a fragmentary sectional View of the pedestal and bearing for the shaft. Figure 5 is an enlarged sectional View illustrat ing the bearing and shaft connection at the driv ing motor. There is illustrated a base to which may be of any approved construction, at one end of which there is suitably mounted an electric motor H, employed ordinarily for driving a meatchopper or grinder (not shown). The motor I! includes a driven shaft i2 suitably journalled as at IS in a boss M of the motor casing. The shaft l2 stops short of the outer end of the boss and in 55 cludes a transversely extended slot !5, receiving 10: 30, the latter being ?xed to a yoke 3! of the 30 pedestal 20. The yoke 3! includes a pair of up standing arms 32, each of which has a threaded aperture screws 33. and receiving respective adjusting The screws 33 engage in suitable countersunk bearings formed in the periphery of 35 the collar, and as may be clearly seen in Figure 4, are in opposed relation. Thus, the shaft I?’ may be laterally adjusted by manipulation of the screws and locked in such position upon tightening of the lock nuts 34. This adjustment 40 may be necessary in adapting the grinder at tachment to certain makes of meat choppers, and in addition, the yoke 3| may be vertically adjustable, and this by reason of the fact that the stem 35 thereof may be moved upwardly and 45 downwardly through the socket 36 of the pedes tal. The stem 35 may be locked in adjusted po sitions by means of the screw 31, threadedly en gaged in a boss 38 and impinging the stem. The shaft H’ has secured thereon a buffer 39 50 and grinding disk 40 suitably spaced along the length of the shaft. The use of the attachment will be readily understood from the following description. The meat chopper ordinarily associated with the mo 55 2 2,100,808 tor II will be removed, exposing the recess l8 and shaft I2, and the collar and sleeve bearing l9—23 of the shaft H inserted therein, the tongue l6 entering the slot IS. The set screw 24 is now tightened, locking the bushing l9 within the re cess. Thus with operation of the motor, the shaft i? will be driven, rotating the grinding disk 25. This position may be readily seen from consider ation of Figure 2, and it will also be seen that the shaft 11’ and associated buffer and grinding disk has been swung upon the adjusting pins 33 so as to clear the disk 25, the shaft ll’ resting upon an upright support 4| carried upon one of the base I9. The grinding disk 25 may thus be used 15 for sharpening knives and tools of various kinds, and should a buffer or further grinding be re quired the motor will be stopped and the shaft i'l’ then swung'upon the adjusting pins 33 so that the shafts I‘! and I1’ are in alignment al 20 lowing interlocking engagement between the tongue 26 and slot 2'1. Should it become neces sary to center the shaft H’ with the shaft H, this may be accomplished by manipulation of the adjusting screws 33 to- effect a lateral move 25 ment of the shaft in one direction or the other, and if a vertical adjustment is required, this may be effected by loosening the lock screw 3‘! to release the stem 35. The yoke 31 may then be raised or lowered, as desired, and secured by 30 tightening the lock screw 31. From the foregoing it will be apparent that I have provided a grinding attachment which may be quickly installed in place of a meat chopper, and by providing separable shafting, a single 35 grinding disk may be employed, or several disks bearing complemental to the boss and removably ?xed therein, a bearing in the ?rst named bearing and revolubly supporting the grinder shaft, a tongue on the grinder shaft engaged within the transverse slot of the motor shaft, a grinder disk on the grinding shaft, said last named shaft hav ing a transverse tongue at the end thereof, a buff er and grinder shaft arranged in end to end re lation with the grinder shaft and having a slot receiving the tongue, buffer and grinder disks 1O on the buffer and a grinder shaft, and adjustable support means for the outer end of the last named shaft. 2. The structure of claim 1 wherein the support means is vertically and laterally adjustable. 15 3. A grinder attachment for meat choppers and the like comprising in combination, a motor hav ing a shaft and an open ended boss circumscrib ing the shaft,'said shaft having a transverse slot across the end thereof, a grinder shaft having a bearing complemental to the boss and removably ?xed therein, a bearing in the ?rst named bear ing and revolubly supporting the grinder shaft, a tongue on the grinder shaft engaged within the transverse slot of the motor shaft, a grinder disk 25 on the grinding shaft, said last named shaft hav ing a transverse tongue at the end thereof, a buffer and grinder shaft arranged in end to end relation with the grinder shaft and having a slot receiving the tongue, buffer and grinder disks on 30 the bu?er and grinder shaft, a bearing collar on the grinder and buffer shaft, a yoke member hav ing laterally adjustable pivot pins journalled in opposed sides of the collar and said yoke member 35 and buffers may be utilized, permitting several having a vertically adjustable stem member. grinding or polishing operations, as may be re quired in some instances. While I have shown and described a certain pre 4. A grinder attachment for meat grinders and the like comprising in combination, a motor hav ing a shaft, a second shaft, detachable coupling 40 ferred construction, this is by way of illustration only, for I am aware that changes may be made, and I therefore consider as my own, all such modi ?cations in structure as fairly fall within the scope of the appended claims. I claim: 45 1. A grinder attachment for meat choppers and the like comprising in combination, a motor hav means between the shafts for end to end connec tion, a grinding disk on the motor shaft, 2. buffer and grinding disk on the second named shaft, an adjustable support means for the second named shaft, said last named shaft having pivotal con nection with the support means whereby said ing a shaft and an open ended boss circumscrib shaft may be swung to a position clear of the ‘motor shaft upon uncoupling of the shafts and a support for the second named shaft when in the ing the shaft, said shaft having a transverse slot latter position. 50 across the end thereof, a grinder shaft having a ANDREW J. KIRKLAND. .