Патент USA US2404604код для вставки
July 23, 1946. T. L. TAYLOR ‘ 2,404,604 GRINDING TOOL GUIDE Filed Dec. 29, 1943 5 Sheets-Sheet l 1 a 32 , I F?‘ .1‘ 1.9 5 1 ' \\\ \ IMN-EIl _ _____ July 23; 1946. T. L- TAYLOR 2,404,604 GRINDING TOOL GUIDE Filed Dec. 29, 1943 3 Sheets-Sheet ‘24 Thomas L A July 23, 1.946. T. L. TAYLOR- I -. 2,404,604 GRINDING TOOL GUIDE Filed Dec. 29, 1945 a Sheetls-Sheet s \‘ nventor 2,404,604‘ Patented July 23, _l946 ‘UNITED STATE s PATENT OFFICE 2,404,604 GRINDING 'roonouipr. ’ _ ‘Thomas L. Taylor, Detroit, Mich. Application December 29, 1943,‘ Serial No. 516,079 ' 3 Claims. (01. 51-241) 1 2 The present invention relates generally to the art of grinding the edge of plate steel through the medium of a pneumatically driven, hand manipulated grinding tool, and has for its pri the arms I are provided with clamps 2 for secur ing said arms in position on a plate which isto mary object to provide, in a manner as herein after set forth, a guide for said tool comprising a novel construction and arrangement whereby the edge of the work may be expeditiously and uniformly ground. be ground‘; character'which will permit the edge of the work Still another important object of the invention is to provide a guide of the character described which is adapted to be readily adjusted to ac commodate plate of substantially any size and thickness. . Other objects of the invention are to provide In the embodiment shown, the clamps 2 comprise vertically spaced, ‘opposed up ' per and lower jaws 3'and 4, respectively, ‘which are integral with the arms I. The jaws 3 and 4 receive the plate therebetwe'enr "I'he'upper jaws 3 are threaded to accommodate thumb screws 5 which clamp the'arms I on the work in cooper Another very important object of the inven 10 tion is to provide .a guideof the aforementioned to be ground at any desired angle. _ . ation with the lower jaws 4. ' ' ' At their other ends, the arms I terminate in vertical eyes 6. Secured by nuts ‘I in the eyes 6 and depending from said eyes are hangers 8 in the form of vertical shafts. Set screws 9 releas ably secure the hangers 8 against rotation in the eyes; 6. Substantially rectangular metallic. sleeves ‘III are fixed. on the lower ends of the hangers 8. Mounted in‘ the sleeves I0 is ‘a'sub stantially channel-shaped guide II- of suitable a grinding tool guide which will be comparatively 20 metal. The’ sleeves‘ ID are adjustable longitu dinally on the guide II. Set screws I2 secure the simple in construction, strong, durable, highly sleeves II] in adjusted position on the guide II. e?icient and reliable in use, compact and which It will thus be seen that the guide I I is mounted may be manufactured at low cost. , on the plate which is ‘to be ground. ' ' All of the foregoing, and still further objects Referring now to Figures l,_ 2 and 3 of the and advantages of the invention will become ap 25 drawings, it will be seen that reference character parent from a study of thefollowing speci?ca I3 designates generally what may be considered tion, taken in connection with the accompanying a carriage which is operable on the work. The drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein: Figure 1 is a view in side elevation of the por tion of the device which carries the pneumatic grinding tool, certain portions thereof being re moved. ' ' carriage I 3' comprises metallic side plates III 30 which include forwardly projecting, compara tively short and long upper and lower arms I5 and I6, respectively, said upper and lower arms being spaced from each other for the reception of the marginal portion of the work therebetween. The side plates III are secured at their rear end por Figure 2 is a view in front elevation thereof, tions, as at I l, on the side members of a sub certain parts being omitted. ‘ stantially U-shaped frame I8. The usual guard Figure 3 is a top plan view. I9 of a conventional grinding tool 20 is secured Figure 4 is a view in front elevation of ‘the at 2I for pivotal adjustment between the plates, usual guard of a grinding tool. Figure 5 is a detail view in cross section, taken 40 I4. Fixed between the forward end portions of the substantially on the'line 5—5 of Figure 1. arms I5 is a pair of spaced, parallel, transverse Figure 6 is a view in side elevation thereof. bars 22. Rollers 23 are journaled between the Figure 7 is a view in horizontal section, taken bars 22 for engagement with the upper surface ~ substantially on the line 1—1 of Figure 2. Figure 8 is a detail view in vertical section, 45 8f the work. Mounted beneath the forward end portions of taken substantially on the line 8-8 of Figure 1. the arms I6 is a metallic bar 24. A substantially Figure 9 is a perspective view of one of the U-shaped bar 25 is pivotally secured. at 26 be brackets. tween the arms I6 for vertical swinging move Figure 10 is a detail view in vertical section, taken substantially on the line III-I0 of Fig 60 ment. Extending between the legs of the sub stantially VU-shaped bar 25 is a bar 21. Rollers ure 6. .28 are journaled between the bars 25 and 21. Referring now to the drawings in detail, and The rollers 28 are engageable beneath the work. to Figures 6, 7 and 10 thereof in particular, it Adjusting screws 29 are threadedly mounted in will be seen that reference character I designates a pair of angular metallic arms. On one end, 65 the bar 24 and engaged beneath the member 25 . ' 2,404,604 3 ' ' 4 ~ for raising and lowering the rollers 28 to accom the tool 20 vertically on pivot bolts 2|, a rounded edge may be ground. When a circular plate is to be ground, the carriage I3 is mounted for opera tion thereon and the guide I I, the arms I, et cet era, are dispensed with. A straight edge may also be ground in this manner, if desired. ‘ modate plates of different thicknesses. An arcuate, longitudinally adjustable brace or ‘ strut 30 is provided for vertically adjusting the tool 20 in the carriage I3 for grinding at different ‘ angles. The adjustable brace 30 comprises slid ably adjustable sections 3! and 32 which are se- ' ‘ ‘It is believed that the many advantages of a cured together by ascrew 34, The element 32 I is ?xed to the front bar 22. The element 3| is grinding tool guide constructed in accordance with the present invention will be readily under-'\ ‘ secured at 33 on 'tdpyor the grinderguard‘ 19., :The 10 stood, ‘and'although a preferred ‘embodiment of , screw 34 is“ threadedly mounted in the element ‘ the device is as illustrated and described, it is to ‘ 3i. A slot in the element 32 accommodates the be understood that changes in the details of con struction and in the combination and arrange Fixedbeneath the U frame I 8 and extendingh ;ment of parts may be resorted to which will fall downwardly and rearwardly therefrom isan an; within ‘the scope of the invention as claimed. What is claimed is: on gular theshank rearwardly 35. Aprojecting yoke 36 is portion-oftheshank adjustablyimounte'd , 1. Means forugrinding the edge of plate steel 35. The yoke 36 comprises, at'an intermediatei' v"comprising, a carriage operable on a plate to be point, an eye 3‘! which accommodates the shank a ground; said carriage including a pair of side 35. Aset screw 38 in the eye v3'! secures the yoke 20 plates, a grinding tool pivotally mounted for 35in adjusted position,v Asillustrated to advan_ ‘ swinging adjustment between said plates, the tage in ‘Figure 10 of the drawings,- the legs of the plates including spaced arms for the reception yoke 37,6v terminate in reduced spindlesJ39 having of the Work therebetween, and rollers journaled journaled-thereon. wheels or rollers 40. The on the arms and operable on the work. , wheels 48 are operable, in the guide H. . 25 2.,Meansior grinding the‘ edge of platesteel It is thought that, the manner in which the in comprising, a carriage operable on a piece of vention functions willrbe readily ,apparentfrom work, said carriage including, aU frame, side a consideration of the foregoing, Brie?y; to grind plates mounted on said U, frameha grinding tool a, straight edge, the'guide II ‘is mounted on the pivotally mounted between said side plates, the work through the medium of. the hangers 8, the side plates including spaced arms for the recep arms ,I, etcetera. The carriage I3 is then mount " tion of the work therebetween, pairs of bars’ ex , screw 34. i‘ ‘ 3 I ‘ 1 ‘ ‘ ed on the plate which is received between the tending between the arms, rollers journaledqbe ‘ upper and lower arms l5 and I6. With the wheels 40 on the yoke-36 traveling in the guide II, the carriage I3 is manually fed on the platetwith the ‘ head ‘4| of the tool an engaged with the edgeto be ground.v The U frame l8 .may be adjusted forwardly or rearwardly relativeto the yoke 36 I at. 31: for positioning the grinding tool properly relative-t0 the work. If a beveled edge is to be ground, the screw 34» is loosened to permit the ‘tool 29 to be swung upwardly 0r downwardly to the desired position on the carriage l3. As here ,inbefore stated, the adjusting screws 29, permit the rollers 28 to be raised or lowered for mount ing the carriage l3 properly on plates of different thicknesses. The wheels‘ 40- are movable verti tween said bars and operable'on the work, means for adjusting certain of the rollers toward orlaway from the work, and means for adjusting , the ‘ grinding tool. about said pivotal mounting. 3. Meansfor grinding theedge of plate steel 449 comprising, a pair of arms, means for detachably securing said arms on a piece of work, hangers depending from the arms, at substantially chan nel-shaped guide mounted on said hangers, a carriage operable on the work, said carriage in cluding a U frame, side plates mounted on the U frame, rollers on the side plates operable on the , opposite faces of the work, means for securing ‘ a grinding tool on the carriage for engagement with the work, a yoke mounted on the carriage, cally in the guide II to permit operation of the and wheels journaled on the yoke and operable ‘carriage I3 on warped or otherwise irregular in the guide. , ' . ., plates. By loosening the screw 34 and swinging 50 ' THOMAS L. TAYLOR. '