Патент USA US2110637код для вставки
March 8, 1938., ’ / gums?‘ COMBINATION MACHINE FOR SHARPENING TOOLS Filed J1ily 11, 1955 =_ 2 ‘J, T. SIMMQNS ET AL’ 5 Sheets-Sheet l March 8, 1938. , J. T. SIMMONS ET AL 2,310,637 COMBINATION MACHINE FOR SHARPENING TOOLS Filed July 11, 1935 3 Sheets-Sheet 2 March 8, 1938. I I ‘ 2,1W,637 J. T. SIMMONS ET AL ‘COMBINATION MACHINE FOR SHARP'ENING TOOLS Filed July 11, 1935 5 Sheets-Sheet 5 Patented Mar. 8, 1938 2,110,637 UNITED STATES PATENT OFFICE 2,110,637 COMBINATION MACHINE FOR SHARPENING TOOLS Jesse T. Simmons and Richard 0. Gilliam, Henderson, Tenn. ApplicationJuly 11, 1935, Serial No. 30,912 4 Claims. (Cl. 51--26) Our invention relates to an improvement in combination machine for sharpening tools. One of the objects is to provide a machine in which the blades of a lawnmower may be sharp 5 ened without removing the blades from or dis mantling the lawnmower. Another object is to provide means for easily adjusting the machine for sharpening other tools, such as drills, augers, and the like and for 10 sawing and lathe work. With these main objects in view, the invention consists in a number of removable and adjustable 15 20 25 30 35 40 p45 50 55 means for sharpening various sharp-edged tools, such as knives, shears, clippers, and the like, by gluing some abrasive material, such as emery pa per or the like, to its outer surface, and holding the article to be sharpened against it as it ro 5 tates. The shaft is driven by a motor M, as illustrated in Fig. 1, through a belt I0 preferably of the V type. In order to attain different speeds, two pulleys II—I2 of different diameters are keyed to the drive shaft 1, and similar pulleys I3 and Ma. are secured to the armature shaft of the attachments for adapting the invention quickly motor M, as shown in Fig. 1. A standard I4 is ?tted for slidable and adjust for these various purposes. In the accompanying drawings: able connection with and between the channel 15 Fig. 1 is a View in perspective showing a lawn; irons 3 of the frame, where it is held in adjusted mower in position of having its blades sharpened; position by the screw I5 which has the handle I6 to facilitate turning and tightening the same. Figs. 2 and 3 are enlarged details partly in sec. The screw I5 extends through a block II, which tion; ' Fig. 4 is a view in front elevation showing the latter is ?tted to slide between the channel-irons 20 lawnmower dotted in position; 3, and screws into a threaded hole in the standard I 4, as best shown in Figs. 5 and 6, in that way Fig. 5 is a transverse vertical section on the line 5--5 of Fig. 4 looking in the direction of the holding the standard rigidly in any adjusted posi tion. arrow; One of the special functions of our present in Fig. 6 is a transverse vertical section on the line 6-6 in Fig. 4 looking in the direction of the vention is to provide means for sharpening the rotary cutter-blades of a lawnmower without the arrow; Fig. 7 is a section on line 'I-—'I of Fig. 8 looking necessity of dismantling or taking the lawnmower apart, except the main wheels which are removed. in the direction of the arrows; The lawnmower is placed in the position illus Fig. 8 is a view in elevation showing the ma chine used as a lathe with parts broken‘ away trated in Figs. 1, 4 and 5, with the cutter-shaft I8 which carries the cutter-blades 20, in align and some in section; Fig. 9 is a sectional detail of the same slightly ment with the drive-shaft ‘I as shown in Fig. 3, enlarged with a portion of the work brokenaway; and the protruding ends of the cutter-blade shaft I8 extend into sockets ZI on the end of drive‘ Fig. 10 is a view in perspective of the removable shaft 1, and 22 on the end of the stub-shaft 23. chuck-head; and Fig. 11 is a sectional view showing a drill or A pin 24 extending transversely through a hole in the shaft I8 is held in notches 25 in the socket auger-bit applied in place of the lathe work. A represents the frame of the machine, the legs H, which constitutes a coupling between shafts ‘I and I8, so that when the parts are thus as 40 I of which are mounted upon and secured to a sembled, they turn together. I suitable base 2. The stub shaft 23 has a threaded portion 26 The frame A may be variously constructed but in the form shown consists of two channel-irons which turns in the threaded hole 21 in the stand 3 suitably spaced apart, as shown in Fig. 13, and ard III, and as a means for turning this. stub shaft 23 in the threaded hole 21 it is provided 45 bolted at their ends to the legs I. A yoke 4 is slidably and adjustably connected with a handwheel 28, by turning which the socket with the channel-irons of the frame by means 22 which holds and centers one end of the shaft I8 of the lawnmower, is turned to adjust and of a bolt 5 which passes down through the base of the yoke and between the channel-irons 3 regulate the position of the socket 22. When where it is held securely in place by the nut 6 thus adjusted, the L-shaped lock bolt 29 is screwed on the lower end of the bolt 5. screwed in place against the stub-shaft 23 to hold A main drive shaft 1 is. journaled in ball-bear it from turning. ings 8, in the upper ends of the yoke 4, The shaft I8 extends through stationary side A disk 9 is removably secured on the outer end plates 30 constituting a part of the frame of the of the drive-shaft ‘I, and. this is employed as a lawnmower as viewed in Fig. 3. 55 2 2,110,637 A work rest 3| hinged to an arm 32 secured to the frame of the machine constitutes a support for the handle 33 of the lawnmower, as illus trated in Fig. 5. The arm 32 is clamped to the channel-irons 3 of the frame A by the screw 34 passing through a block between the bars similar to the block H, as illustrated in Fig. 4. The arm 32 may be adjusted along the frame A by unscrewing and tightening the screw 34. 10 The rest 3| by being swung in the arc of a circle from its hinged point 35 provides means for vary ing the inclination of the handle 33 of the lawn mower, and consequently the position of the en tire lawnmower and the cutter blades. To sharpen the blades, some abrasive material is placed on the edge of the stationary blade 36 and the motor M, is started, and by the well known grinding contact of the cutter-blades 20 with the abrasive material on the edge of the stationary blade 36 all the blades are sharpened evenly throughout their length. In this way all blades are sharpened at the same time. With slight change in re-adjustment, our im~ proved machine is just as applicable to other 25 Work, for example the turning of round forms, that is to say lathe work, such as is illustrated in Figs. 7 to 10, inclusive. As shown in Figs. 8 and 9, the object to be turned is indicated by the letter W, which, for purposes of illustration, happens to be a table leg. This is held in posi tion by simply inserting the chuck 40 (see Figs. 8 and 9) in the socket 2 I, where it is held against relative turning by the pin 24 which is passed through a hole in the shank of the chuck (as 35 shown in Figs. 9 and 11) with the outer ends resting in the notch 25, thus securing the chuck to the shaft 1 so they will turn together. The chuck has teeth 4| which engage the work W and cause the work to turn with the chuck and the shaft 1. A centering pin 42 is inserted in the socket 22 of the stub shaft 23 and extends into the center of the work W as shown in Figs. 8 and 9, and by turning the hand-wheel 28 the threads 45 26 of the stub-shaft move the latter endwise the required distance to hold the work securely be tween the inner end of the pin 42 and the chuck 40. The L-shaped lock pin 29 holds the stub shaft 23 against turning. The tool employed for fashioning the work is 50 held upon the rest 3| in the usual manner of doing turning. By referring to Fig. 11, it will be seen how the machine may be turned for drilling or boring 55 through metal or wood as represented by the numeral 45 in Fig. 11, the drill 46 being held in the chuck 40 by a set-screw 41. Thus we have provided a machine of few, sim ple and sturdy parts, light enough to be prac tically portable and adapted with slight adjust ment for sharpening knives of a lawnmower and various other sharp-edged tools, also as a saw, a lathe, and a drill, thus having a variety of uses with very slight adjustment by any operator 65 with ordinary skill. We claim: 1. The combination of a frame allel channel-irons and legs upon ter are supported, a yoke, and a ported on the channel-irons and including par which the lat standard sup each having a portion extending between the latter, blocks lo cated beneath the channel-irons with portions of the blocks extending between the latter, bolts extending through the blocks and into the yoke and standard for adjustably clamping the lat ter and said yoke and standard to the channel 10 irons, a drive-shaft journaled in the upper end of the yoke, and a stub-shaft screwed into a hole of the upper end of the standard, the drive-shaft and stubshaft constructed at their inner ends to receive the ends of the cutter-shaft of a lawn 15 mower, whereby to impart rotary motion to the latter while the cutter-blades are being sharp ened. 2. The combination of a frame allel channel-irons and. legs upon ter are supported, a yoke, and a ported on the channel-irons and including par which the lat 20 standard sup each having a portion extending between the latter, blocks lo cated beneath the channel-irons with portions of the blocks extending between the latter, bolts 25 extending through the blocks and into the yoke and standard for adjustably clamping the lat ter and said yoke and standard to the channel irons, a drive-shaft journaled in the upper end of the yoke, and a stub-shaft screwed into a 30 hole of the upper end of the standard, the drive shaft and stub-shaft constructed at their inner ends to receive the ends of the cutter-shaft of a lawnmower, whereby to impart rotary motion to the latter while the cutter-blades are being 35 sharpened, and means for turning the drive shaft at different speeds according to the re quirements. 3. The combination of a frame including par allel channel-irons and legs upon which the lat 40 ter are supported, standards supported on the channel-irons and each having a portion ex tending between the latter, blocks located be neath the channel-irons with portions of the blocks extending between, the latter, bolts ex 45 tending through the blocks and into the stand ards for adjustably clamping said blocks and standards " to the channel-irons, a drive shaft journaled in the upper end of one standard, a stub shaft carried by the upper end of the other standard, said drive shaft and stub shaft being constructed at their inner ends to receive and support work therebetween. 4. The combination of a frame having parallel spaced angle bars and having means for sup 55 porting a lawnmower thereon for sharpening the blades thereof, a bracket extending transversely of said angle bars, a block located beneath the angle bars, a bolt extending through said block and connected with the bracket for securing the 60 same to the angle bars, and a work rest piv otally supported by said bracket at the outer end thereof and extending upwardly in position to engage and support the lawnmower handle. 7 JESSE T. SIMMONS. RICHARD O. GILLIAM.