Патент USA US2130965код для вставки
Sept. 20, 1938. R. c. PORTER 2,130,965 TOOL SUPPORT Filed Aug. 2, 1957 2 Sheets-Sheet 2 ATTO R N EYS Patented Sept. 20, 1938 2,130,965 ‘ UNITED STATES PATENT OFFEQE 233M335 time smear Richard 0. Porter, Wake?eld, Mass. Appiioation August 2, 193?, Serial No. 157,050 i Claim. (Cl. 76-43) My invention relates to tool supports and more tending lugs l3 for supporting thereon my tool particularly to supports adapted for attachment support attachment ill by means of brackets it to tool dressing machines. adjustably connected thereto by bolts and nuts il'l. One of the principal objects of my invention is My tool support attachment comprises a longi 5 to provide a tool support adapted for attach tudinally extending bed comprising a body it ment to tool dressing machines equipped with formed with a groove in which is adjustably means for presenting the tool to be dressed in mounted an arm M. The arm is formed with proper tool dressing position to the dressing ele longitudinally extending slots 22 for receiving ment. Another object of my invention is to provide an ~ attachment of the above described character which is easily attached to tool dressing machines already in use without modifying the structure of 15 said machine. v» ' A further object of my invention is to provide an attachment of the above described character equipped with means whereby tools of various sizes may be accommodated and presented for dressing. - 20 therethrough adjusting bolts 23 carried by the lower section of the body and provided with suit able nuts for clamping the arm thereto. The body and arm are preferably constructed of Wood, the upper surface of the arm' being provided with metal wear plates for engagement with washers carried on the bolts and interposed between the 35 nuts and plates, rl‘he wear plates function to pre vent the washers penetrating or deforming the upper surfaces of the arms-due to the binding action of the bolts and nuts-thereby permitting A still further object oi‘ my invention is to pro» ’ a smooth adjustment of relation to the body. vide an attachment oi‘ the above described char» A pair of parallel sill members 2/3 are attached acter which is simple in construction, durable in to the sides of the arms 2i and are adapted for operation and economical in manufacture. sliding engagement with the upper face of the Still another object of my invention is to pro bed. The sill members are connected together at 25 vide an attachment of the above described char~ their forwardly extending ends in a spaced rela» ‘ acter which minimizes operating time and maxi“ tion by means of a spacer 263. mizes uniformity in tool dressing. Mounted on the sill members and having slid Other objects and advantages will be apparent ing engagement therewith is a tool table 22’, the from the following description, appended claims lower face of which is formed with a spacing 30 and annexed drawings. section 28 engaging the inner side faces of the Referring to the drawings wherein like refer sill members and coacting therewith to guide ence characters designate like parts throughout the travel of the table in a direction to or from the several views: the dresser i2. The table is formed with an Fig. l is a perspective view of my invention elongated slot 29 for receiving therein a plate illustrated in connection with a tool dressing ma chine. ' 39 constructed of metal and formed with a cen- 35 tral aperture registering with a slot 3i formed Fig. 2 is a sectional view .on a line 2-4 of Fig. 1. in the section 28. Fig. 3 is a front elevation of my invention. . sleeve 32 adapted to be positioned within the Fig. 4 is a sectional view taken on a line 4-4 of central aperture of a circular saw 33 and func tioning to maintain the saw on the table. The 40 plate 30 and sleeve 32 are adjustable relative to the table -21 and section 28 by means of a bolt 40 Fig. 1. In teaching my invention, I utilize for the pur pose of illustration and description a dressing ma. chine of typical construction commonly known as a grinder. The grinder is joined with a standard 5 having a shelf 6 on which is mounted a bearing block 1 provided with bearings 8. A shaft S is journaled in the bearings and is adapted for rota tion therein by means of a pulley i0 secured there on between said bearings, said pulley being-oper 50 ated from a suitable source of power (not shown) through the medium oi’ a drive belt ii. One end of the shaft 9 has secured thereon a tool dresser l2 consisting of a wheel constructed of suitable dressing material, for instance, carborundum. 55 The bearing block is formed with laterally ex Mounted on the plate 30 is a, and nut 34 securing the plate 36 in sliding en gagement within the slot 29, as clearly illustrated in Fig. 4. A plurality of collars 35 are spaced 45 about the sleeve 34 and secured to the upper sur face of the table by means of suitable screws and function to space the saw from the table to prevent the teeth of the saw, which are set, from engaging the upper surface of the table 50 and marring the same. Also by maintaining the saw in raised position an easy adjustment there of is obtainable. A latch 35 constructed of resil ient material is secured at one side of the table adjacent the saw and is formed with an offset 55 2 2,180,965 end 36 for engagement with the saw between the teeth thereof to lock the saw in an adjusted position on said table. > Secured to the arm 2| and extending laterally thereof is an adjustable stop 31 having an offset section 38 adapted to engage the inner side face of the table 21 to limit movement of the table in the direction of the dresser. The upper and lower faces of the section 28, 10 adjacent the slot 3|, are provided with suitable metal wear strips for effecting an easy adjust ment of the plate 30. In use, a circular saw having worn teeth is positioned on the table about the sleeve 312, the 15 table moved towards the dresser I2 and the plate 30 adjusted to position the saw in a manner so that the wheel i 2 will operate against the cutting face of a particular tooth. The arm 2i is adjusted relative to the body to properly posi tion the table longitudinally in order to eilect a proper dressing position for the saw. Com pleted adjustment of the arm 2| and sleeve 32 permits of the table feeding the saw into dressing engagement with the dresser, the latch 35% lock 25 ing the saw against relative movement. Upon retracting movement of the table, the latch is disengaged from saw, the saw rotated a su?lcient distance to present another tooth in dressing position and the latch manipulated to again lock the saw. Continued operation of the parts in without. departing from the spirit of the inven— tion or scope of the appended claim. Having thus described my invention, what I claim is: A device of the character described, compris ing, in combination, a tool dresser having a ro tatable dressing element; and a tool support comprising a bed having laterally extending brackets adjustably secured to said dresser whereby to adjust said support laterally relative to said element, said bed fashioned with a lon gitudinally extending shoulder having an upper face, a longitudinally extending arm on said bed adjacent said shoulder and movable there with and adjustable lengthwise relative thereto, 15 laterally extending spaced sill members secured to said arm above said shoulder for supporting and sliding engagement with the upper face of said shoulder, a tool table slidably mounted on said sill members for transverse movement over 20 said arm and bed and fashioned with an elon gated slot, a sleeve for positioning a saw on said table, collars carried by said table and adapted to support a saw and maintain the latter in spaced relation with the upper surface of said table, a plate slidable within said elongated slot and connected to said sleeve and said table whereby to adjust a saw relative to the end of said table adjacent said dressing element, a stop adjustable on said bed for limiting the movement of said 30 table towards said dressing element, and a latch on said table coacting with said sleeve whereby the above described manner effects a speedy and uniform grinding or dressing of the saw teeth. While I have described and illustrated my in vention in connection with the grinding or dress ing of a circular saw, it is to be distinctly under stood that the invention lends itself to many to secure the saw in locked position on said table to effect a dressing of a desired tooth of said saw, said table formed with a subjacent 35 other types of tools and work and that various changes and modi?cations may be resorted to position. section slidably engaging said sill members for guiding the travel of said table to work achieving RICHARD C. PORTER.