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Sept. 27, 1938. ‘ ‘w. A. WEED ' 2,131,530 SHARPENING OR GRINDING DEVICE Filed Aug. 14, 1937 3 Sheets-Sheet l 'Sept. 27, 1938. w. A. WEED‘ 2,131,530 SHARPENING 0R GRINDING DEVICE Filed Aug. 14, 1957 3 sheetsésheet 2 Sept. 27,- 1938.. w. A. WEED 2,131,530 SHARPENING OR GRINDING ‘DEVICE Filed Aug. 14, 19,57 3 Sheets-Sheet 3 Patented Sept. 27, 1938 " j 2,131,530 UNITED STATES PATENT OFFICE Walter ‘A. Weed, Orlando, Fla. ’ Application August 14, 1937, Serial No. 159,191 6 Claims. (Cl. 51-220) My invention relates to- a device for sharpening or shafts l4, clamped therein by bolts l5 or the or grinding tools or the like. like. An important object of the invention is to pro Adapted to coact with the posts I4 is a carriage vide a device of the above mentioned character l6, shown as embodying blocks I7 and I8, rigidly 5 which is adapted for sharpening or grinding a tool having a double bevel or taper, and which is secured together by any suitable means, and ar 5 adjustable to obtain one desired bevel and may ranged at a right angle with relation to each other. In Figure 1, the block is is vertically subsequently be manipulated to produce accu disposed and is offset laterally with respect to the rately the other bevel. 10 A further object of the invention is to provide block ll, while the block I1 has its ends extending a clamping device for holding the tool, with means beyond the sides of the block H), as shown. The to adjustably support the same and to readily horizontal block l7, Figure 1, has vertical-open— permit of the tool being inverted for producing ings l9, to‘slidably receive the posts l4, and the block 11 has screw-threaded openings 29-to re the double bevel or taper. 15 A further object of the invention is to provide ceive winged bolts 2|, to engage the posts [4 and a stand or support, for coaction with the work clamp, and which has a large range of adjust ment, to eifect the desired A further object of the invention is to provide results. > ' 20 a clamp which may be used for holding elongated work extending longitudinally of the clamp. Other objects and advantages of the invention will be apparent during the course of the follow ing description. 25 In the accompanying drawings forming a part cally 'angularly adjustable and also horizontally longitudinally adjustable,.with respect to the block the same, Figure 1 is a side elevation of apparatus em I8.’ This supporting unit comprises spaced upper and lower horizontal rods 24 and 25, preferably cylindrical, and having corresponding ends in serted into openings 26 in a cross-head 27!, and‘ clamped therein by bolts 28 or the like. Corre~ sponding ends of this supporting unit are there fore rigidly connected, while its opposite ends bodying my invention, Figure 2 is an exploded perspective view- of the same, Figure 3 is a plan view of thesame, Figure 4 is a vertical section taken on line 4-4 35 of Figure 3, Figure 5 is a vertical section taken on line 5—5 of Figure 3, are free and unconnected. The supporting unit as a Whole is approximately U-shaped. In the arrangement or adjustment shown in Figures 1 Figure 6 is a side elevation of the apparatus to 3 inclusive, the lower horizontal rod 25 is passed through the upper opening 26', and is slid shown in Figure 1, the apparatus shown in Figure 40 6 having a di?erent adjustment, Figure 7 is a side elevation of a modi?ed form of apparatus embodying my invention, 45 horizontal openings 2|’ and 22’ formed therein, which are'spaced, as shown. The openings 2|’ and 22' are suitably spaced to receive the posts Hi, When the block I8 is horizontally arranged, as will be described. Mounted upon the vertically adjustable car riage I6 is a supporting unit 23, which is verti of this application and in which like numerals are employed to designate like parts throughout 30 thereby clamp .the block in the selected adjusted elevation upon the posts Id. The block l8, ver tically arranged in Figure 1, has transverse or Figure 8 is a plan view of the same, Figure 9 is an exploded perspective view of the clamp embodied in such apparatus, and, Figure 10 is a transverse section taken on line |0—|0 of Figure 8. In the drawings, wherein for the purpose of 50 illustration are shown preferred ‘embodiments of my invention, the numeral IO designates a verti cal stand as a whole, comprising a horizontal base H, to be ?xedly secured to a table or like sup port. Base II has ablock l2 rigidly secured there 56 to, having openings I 3, to receive vertical posts .able therein, to turn'upon its longitudinal axis or to move longitudinally therein.~ The rod 25 is clamped in the selected adjusted position by a winged bolt 29 having screw-threaded engage ment within a screw-threaded opening 39, one bolt 29 for each opening 2|’ and 22’. ‘The numeral 32 designates a work clamp, as 33 and 34, I ably longitudinally serrated, as shown at 35, and these inner faces preferably have transverse grooves 36, generally V-shaped in cross-section to receive the opposite edges of a narrow blade 37, when'such a tool is to be sharpened. This blade carries the usual handle 38. The upper and lower jaws 33 and 34 are ordinarily generally horizontally arranged in use, and are adjustably 55 2,131,530 2.... connected by means of winged bolts 39, passing through openings 39’ formed in the upper jaw 33 and in lugs or blocks 49, rigidly attached to the upper jaw 33. The bolts 39 do not have screw threaded engagements with the openings 39', but their lower ends have screw-threaded engage ment within openings 4|, formed in the lower jaw 34 and blocks 42, rigidly attached thereto. When the jaws 33 and 34 are employed to hold an elon 10 gated blade 31 or the like extending transversely of the jaws, the jaws are transversely parallel and the work is properly clamped between the same by manipulation of the bolts 39. When these jaws are employed to hold elongated work extending longitudinally of the jaws, such work 15 is arranged between the jaws in advance of the bolts 39 and the jaws are drawn together by manipulation of the bolts. The jaws are main tained transversely parallel by manipulating a 20 The carriage 16 has been turned for 90° so that the block I8 is horizontal and the block l1 verti cal. The openings 2|’ and 22’ are now. vertical and receive the vertical posts l4, which may be clamped therein by the bolts 29. The block [1, now vertically arranged, being offset laterally from the block I8 is farther from the grinding wheel, and since it is shorter, and has its inter mediate portion secured to the block 18, it pro duces a stand which is much lower, and may be adjusted to a considerably lower position. The openings 19 in the block l1 are now horizontal and the upper opening receives the lower rod 25 bolt 44, having screw-threaded engagement with an opening 44' formed in the upper'jaw 33 and this bolt 44 will engage the lower jaw 34, behind the work. The bolt 44 is arranged out of align ment with the bolts 39 and rearwardly of the 25 same, and there is a slight play between the bolts 39 and openings 39’. Preferably formed integral with the upper blocks 40 are knuckles 45, having horizontal open ings 46, to slidably receive the upper rod 24, and 30 knuckles 41 are preferably formed integral with the blocks 42 and have openings 43 to slidably re ceive the rod 24. Each pair of knuckles is there fore adapted to be slidably mounted upon the upper rod‘24, to turn thereon, and move longi 35 tudinally thereof, and to be removed from the ' rod. By this means, either pair of knuckles may be placed upon the rod 24 and one beveled face 31’ of the blade 31 ground, afterwhich the clamp may be removed from the rod“, inverted with— out disturbing its holding engagement with the work 31, and the other pair of knuckles slidably mounted upon the rod 24 for grinding the other beveled face 31’. The numerals 49 and 59 designate vertically rotating grinding wheels, to ‘be arranged at suit 45 able distances upon one side of the supporting unit 23. ' a The operation of the form of apparatus'shown in‘Figures 1 to 4 inclusive, is as follows: 50 The blade or work 31 is clamped between the jaws 33 and 34, and projects forwardly beyond the same, while the handle 38 extends rearward ly beyond the jaws to be grasped by the operator. The supporting unit 23 is angularly adjusted, so 55 that its top is swung toward or from the grinding wheel, so that the bevel 31' of the blade will properly engage the periphery of the grinding wheel. The supporting element is now clamped to the carriage by manipulation of the bolt 29. 60 The blade or work is now pressed into» proper en of the supporting unit, slidable therein, and adapted to be clamped in position by the winged 15 bolt 2|. The clamp'32 is mounted upon the upper rod 24 to turn and move longitudinally thereof, as explained.v It is obvious that the carriage may be arranged with the block 18 in the horizontal position, and the block l1 upon the forward side 20 of the posts 44, if desired. In Figures '1 to 10 inclusive, I have shown an adjustable clamp wherein the jaws are shiftable to and from the knuckles, to vary their distance from the grinding wheel. In these ?gures, the 25 numerals 51 and 52. designate upper and ‘lower bars, provided with apertured knuckles 53, to slidably receive the upper rod 24 of the support ing unit 23, the entire clamp being invertible, as describedin connection with the ?rst form of 30 clamp. These bars .51 have recesses 5|’ for the free passage of work extending transversely of the clamp. The lower bar 52 carries vertical guide bars 54 rigidly secured thereto, for slidable en gagement within vertical openings 55 formed 35 in the upper bar ._5l. Each upper and lower bar 5| and 52 carries a pair of horizontal guide pins 56, to be slidably mounted within openings 51 formed in upper and lower jaws “and 59, corre sponding to the jaws 33 and 34. The upper jaw 58 hasv vertical ‘openings 60, receiving vertical bolts 6|, but having no screw-threaded engage ment therewith, and thelower ends of these bolts have screw-threaded engagement within open ings 62 formed in the lower jaw 59. It is thus apparent that the 7bolts 6| permanently connect the jaws 58 and 59 and are adapted to draw these jaws together. The upper jaw has‘ a screw threaded opening 63,ihaving screw-threaded en gagement with a bolt 64, to contact with the 50 lower jaw to tilt the upper jaw or to prevent tilt ing, to retain the upper and lower jaws transe versely parallel when holding. elongated work extending longitudinally thereof. The pairs of connected jaws, slidable upon the guide pins 56, 55 are clamped in adjustment upon the lower guide pins 56 by bolts 65, engaging within screw-thread ed openings 66. The swinging movement of the supporting element , brings the work-holding clamp closer or farther from the rotary grinding 60 wheel, andadjusts the angular, position of the gagement with the grinder or grinders, as the work with (respect to the grinder. The jaws 5B clamp may be shifted longitudinally in proximity and 59, being adjustable upon the guide pins 56 to either grinder, and after one bevel 31' is serve to increase the range of adjustment _be ground, the clamp is inverted and the other bevel tween the work _and grinder. _This adjustable 65 clamp is adaptedfor use in connection with the 05 31’ ground in a similar manner. When grinding work like the blade 31 having the handle 38, the stand, described in connection with the ?rst ‘form work may be manipulated either by the handle of clamp, in the manner previously presented. 38 or by the operator engaging the clamp 32. It ‘is to be understood that the forms of 'my in When the clamp is holding shorter work extend vention herewith shown and described are to be 70 .ing transversely thereof, or elongated work ex 70 tending longitudinally of the clamp, the, clamp taken as preferred examples of the same and that various changes in the shape, size, and arrange is manipulated by the operator holding the same ment of parts may be resorted to without depart ing from the spirit of my invention or the scope in his hand. In Figure 6, the same apparatus is shown, but of the subjoined claims. 75 the parts are adjusted or assembled differently. 2,131,580 3 Having thus described my invention, what I work clamp comprising opposed jaws, adjustable posts, a carriage including vertical and horizon tal parts which are o?set laterally, the horizon tal part having a pair of spaced openings to slid ably receive the pair of vertical posts and the vertical part having spaced openings to slidably 10 receive the vertical posts, means to clamp the means to draw the jaws together, separate aper tured knuckles secured to the jaws, a supporting unit comprising spaced rods, one rod being adapted to slidably receive thereon the apertured knuckle of one jaw and to slidably receive there on the separate apertured knuckle of the other jaw when the clamp is inverted, a support to receive the other rod which is capable of turning claim is: 1. In a grinding device, a rotary grinder, a work clamp, a stand comprising spaced vertical horizontal part to one post when such part is mounted upon the posts, means to clamp the vertical part to one post when it is mounted upon the posts in a horizontal position, a sup 15 porting unit comprising spaced upper and lower rods, the lower rod being adapted to- be inserted Within one opening of either horizontal or ver tical part, means to clamp the lower rod to either horizontal or vertical part when inserted in the 20 opening thereof, and means to pivotally mount the clamp upon the upper rod. , 2. In a grinding device, a clamp including op posed jaws, separate apertured knuckles secured to the jaws, adjustable means to draw the jaws 25 together, and a support comprising a rod to re ceive thereon the apertured knuckle of one jaw and to also receive thereon the other separate apertured knuckle of the other jaw when the clamp is inverted. 30 3. In a grinding device, a work clamp, com prising opposed jaws, separate apertured knuckles carried by the jaws, adjustable means to draw the jaws together, a supporting unit comprising a pair of spaced rods, one rod slid 35 ably receiving thereon the knuckle of one jaw and also being adapted to receive thereon the separate knuckle of the other jaw when the clamp is inverted, and a support having an open ing for adjustably receiving and holding the other 40 rod. 4. In a grinding device, a rotary grinder, a therein, means to clamp the last named rod to 10 the support, and means to adjust the support with respect to the rotary grinder. 5. In a grinding device, a rotary grinder, a work clamp including opposed jaws, separate apertured knuckles secured to the opposed jaws 15 and extending outwardly from the work engag ing faces of the same, adjustable means to draw the jaws together, a supporting unit comprising a pair of spaced rods, one rod being adapted to slidably receive thereon the knuckle of the one 20 jaw and to slidably receive thereon the separate knuckle of the other jaw when the clamp is in verted, a stand, a carriage vertically adjustably mounted upon the stand and having an opening to adjustably receive the other rod, means to 25 clamp the last named rod to the carriage, and means to clamp the carriage to the stand. 6. In a grinding device, a clamp including op posed jaws, the opposed jaws having openings formed therein, opposed bars arranged near the 30 jaws, rods carried by the opposedbars and slid ably mounted within the openings of the jaws, adjustable means to draw the jaws together, separate apertured knuckles secured to the op posed bars, and a support comprising a rod to 35 receive thereon the apertured knuckle of one bar and also receive thereon the other separate aper tured knuckle of the other bar when the clamp is inverted. WALTER A. WEED.