US2664875A - Wheel dresser - Google Patents

Description

Jan. 5, 1954 W H KOCH 2,664,875

WHEEL DRESSER Filed Oct. 15, 1949 l 3 /9 20 2 /o i 5 3 l |i||\||'"' c/fQ .ff/ffii ////1u (frbt.

Invenor @KM-@MMM Patented Jan. 5, 1954 WHEEL DRESSER William H. Koch, Evansville, Ind., assignor to Indian Archery & Toy Corporation, Evansville, Ind., a corporation of Indiana Application October 15, 1949, Serial No. 121,596

6 Claims. l

This invention relates to wheel dressing tools, and has particular but not limited reference to tools for the dressing of grinding wheels as used in connection with small, power operated hand tools.

The great majority of tools of this type have heretofore been of considerable bulk or extremely small, in either of which event the tool is awkward and hard to h-andle or control, while simultaneously controlling the power tool and associated grinding wheel. The present dressing tool, while not being of great size is so proportioned and constructed that it is very easy to handle while simultaneously providing a rest or support for the power tool. By such means, the relative positions of the dressing tool and the grinding wheel are easily controlled and regulated by the operator.

Thus, the object of the invention is to simplify the construction as well as the means and mode oi operation of tools as disclosed herein, whereby such tools may not only be economically manufactured, but -will be more eilicient and accurate in use, adaptable to a wide variety of grinding tools, having relatively few parts and be unlikely to get out of repair.

It is a further object of the invention to provide such a tool which by reason of its relatively small size, simplicity and less costly construction may be easily acquired and used by individual power tool owners.

Another object of the invention is to enable wheel dressing by use of a small, hand held tool in which the pressure oi the dressing element is under the continuous control of the operator.

A further object of the invention is to provide a mounting for the dressing element whereby it is securely held against dislodgment, yet is readily accessible for removal.

Still another object of the invention is to prolong the useful life of the dressingr element by providing the element with a plurality ci selectively or successively usable cutting edges.

A still further object of the invention is to utilize a cube-shaped dressing element to obtain a plurality of selectively or successively usable cutting edges, a further object in this connection being to utilize the cube-like shape i the dressing element to obtain a secure mounting therefor.

A further object of the invention is to provide in a tool of the character described means for supporting the power tool to thereby maintain the relative lpositions of the power and dressing tools within predetermined limits.

A. further object of the invention is to provide a tool possessing the advantageous structural features, the inherent meritorious characteristics and the mode of operation herein mentioned.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention intended to be pronecessarily the only form of embodiment of the invention,

Fig. 1 is a top plan view of la dressing tool in accordance with the instant invention;

Fig. 2 is a side view of the tool;

Fig. 3 is a view similar to Fig. 2, the tool being shown in longitudinal section;

Fig. 4 is a front end view of the tool;

Fig. 5 is a view in cross section, taken substantially along the line 5 5 of Fig. 1;

Fig. 6 is a ydetail view, in top plan, of the dressing element carrying slide; and

Fig. 7 is a fragmentary perspective view of the top of the dressing element carrying slide with the dressing element removed.

Fig. 8 is a fragmentary View, in perspective, of the tool, showing one manner of use thereof.

Like parts are indicated by similar characters ofreierence throughout the several views.

Referring to the drawings, according to the illustrative embodiment of the invention, a wheel dressing tool comprises an elongated bar-like body I0 presenting at one end thereof a notch I I with tapering sides and a rounded bottom. In the region of the notch II, fthe body I 0 has a lesser thickness than over the remainder of its length. In the portion of greater thickness, one side of the body is channeled and undercut to dene a longitudinal slideway I2 which at its one end opens onto the portion of lesser thickness.

Mounted in the slideway I 2 is a slide I 3, formed in a manner complementary to the slideway and having a short groove I 4 in its underside. A screw |15 is passed from the underside of the body I II into the slideway I2 4and projects into the groove I4. The screw I5 accordingly acts as an abutment, defining limits of reciprocable motion for the slide I3.

The upper or left hand end of the slide I3 is formed with an enlarged head portion I6 in which is formed a recess or socket Il opening through the outer end of the head I6. In a transverse direction it opens through the top side only of the head, there being dened at the bottom of the recess a land I8. The configuration of the recess is such as to receive a cubeshaped dressing element I9, permitting an edge of the element to protrude toward the notch II.

The head I6 is provided with transversely projecting marginal iianges 20 disposed on the side of the head opposite the land I8. Such flanges are slightly longer than the head I6 extending therebeyond to provide a pairof inturned prongs 3 2| which overlie the dressing element I9. Thus, the recess I'I is of frusto-cubical shape, the frustrum occurring at a point to define the inturned prongs 2| which prevent outwardf motion orV the element.

The dressing element I9 is inserted in the,

recess I'I from the topside of the head I6l and. seats upon the land I8 in complementary engaging relationship with the side walls of the recess and with the prongs, 2I'., Withdrawal of. the element through the top of the recess is. normally prevented by a retaining plate 22 fastened to the body of the slide I3 and to the head I6 thereof by respective screws 23 and 2li I'Phe plate 22 is of such length as to project in partly overlying relation to the-recess ITI and therefore to the element I9 whenit is in placewithin the recess.

AsV shown in Fig, 1, the construction and arrangement of parts is suchas to place the dressing element I9 in line` with the. notch II, the protruding edge ofthe element ylying in a plane at right anglesv tothe longitudinal axis of the body I0. Further, the element is shiftable, by reason oftheA mountingofs the slidel I3, toward and from theY notch IVI- Referring to Fig. 8, in the use of the tool, the notch I-I, presents a means to guide and position a spindle 25 which isheld at right angles to thetool. The grinding wheel 26 on the end-ofl the spindle then lies in parallel, adjacent relationship tothe-body I-in an overlying position with respect-to` the` cutting edge of element I9. The-body.V I0v-and its associated parts are adapted tobe heldL in the hand ofv the operator who=useshis thumb to advance the dressing element I9 into-contact with the wheel, such motion being of course, accompanied by rotation of the Wheel to effect the desired dressing thereof., The retainer-plate 22 and head I6 present a suitable abutment against whichthe operator may press to urge the dressing element against the wheel.

The dressing element I9: isf, made of a hard material suitable for its function, for example Norbide; By reasonof: itscubic shape, the element presents twelve usable cutting edges. When one edge becomes worn, retainer plate 22 is removed, the dressingelement I9 islifted from recess II, turned to a new. position of adjustment and reinserted. in the recess, the retainer plate being then replaced.

From the above descriptionit will be` apparent that there is thus provided a device of the char-` acter described possessing the: particular features of advantage before enumeratedL as desir-v able, but which obviously is susceptible of modication in its form, proportions, detailconstruction and arrangement ofparts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been describedin language more or less specific as tostructural features, it isY tobeunderstoodthat the invention is not limited to the specific features shown, but that the means andconstruction herein disclosed` comprise but one ofY several modes of putting4 the, Y invention, into effect.

Having thus describedimy invention, I claim:

1. A tool. for wheel dressing, including a rec tangular bar to beheldr the hand and having a guide notchat ong end. thereof, a longituthe end thereof adjacent said notch, an angular recess in said head portion, a dressing element received, insaid recess andI formed with a protruding cutting edge underlying said notch in a longitudinal sense, and a retainer plate removably fastened to said slide and partly overlying said dressing element, said retainer plate and saidl enlarged head presenting an abutment for the finger operation of said slide to urge said dressing element toward said notch.

2. A: toolv according to claim 1, characterized in that said dressing element is formed as a cube with each edge thereof representing a selectivelyusable cutting edge, the retainer plate being removed and the dressing element being readjustedto-present a new` cutting edge as each previously used edge becomes Worn.

3. A tool for wheel dressing, including a rectangular body to be held in the hand, a notch at one end thereof to receive and position a wheel spindlein angular relation thereto, a supportV for a dressing element mounted on said body for limited sliding motion toward and from said notch, said support being manipulative by the fingers of the operator, a cube-shaped dressing element carried by said support in a position underlyingl said notch in a longitudinal sense, the edges of said cutting element representing cutting surfaces, and a dressing'element retainer plate on saidy support and removable therefrom to allow adjusting said element relatively to said support for successive use of the several edges of said element.

4; Atool according-to claim 3, characterized in that said last named means includes a mounting for said dressingelement utilizing the cube shape of said element for. a secure gripping thereof.

5; A, tool, for. wheel dressing, including a rectangular body to be held in the hand and presenting at one end thereof a locating notch to receive and position. a spindle and associated wheel in operative relation thereto, a slide mounted. on the body for reciprocatory motion Y longitudinally ofr the body under hand control,

a lamination on the side of said slide adjacent one end thereof presenting a socket frusto-cubical, inshape, and a cube-shaped dressing element' received in said socket with one edge thereof protruding from the socket and beyond the end of said slide, in linewith said notch, said slide being movable relative to said body toward said notch under influence of pressure applied by a finger or thumb of the hand.

6. A tool Iaccording to claim 5, characterized by a retainer mounted on the side of said slide in overlying relation to said socket, said retainer being removable for readjustment of said dressing element to bring the twelve edges thereof successively into protruding position.

WILLIAM H. KOCH.

References Cited' in the file of this patent UNITED STATES PATENTS Number Name Date 769,945 Howland Sept. 13, 1904 1,112,461; Long Oct. 6, 1914 2,297,750 Dinhofer Oct. 6, 1942 2,355,324- Palmer Aug. 8, 1944 2,378,094 Nunes-Vez` June 12 1945 2,468,921 Bruce May 3, 1949 FOREIGN' PATENTS Number. Country Date 465,537 Great Britain May-10, 1937

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