Manufacturers Index - Bridgeport Safety Emery Wheel Co.
Bridgeport Safety Emery Wheel Co.
Bridgeport, CT; Stratford, CT, U.S.A.
Manufacturer Class:
Metal Working Machinery
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1,133,475
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Mar. 30, 1915
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Grinding Wheel
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Elwin R. Hyde |
Bridgeport, Fairfield County, CT |
Abstract:
This invention has for its object to produce a simple and inexpensive grinding wheel especially adapted for face grinding, which shall comprise a flanged carrying disk, a plurality of grinding blocks of novel configuration and means for adjusting the blocks so that the blocks maybe practically used up, thereby avoiding waste and greatly reducing the cost of the operation of grinding. With these and other objects in view I have devised the novel grinding wheel and grinding blocks therefor, which I will now describe, referring to the accompanying drawings forming a part of this specification and using reference characters to indicate the several parts.
Claims:
1. A grinding wheel comprising a carrying disk having inner and outer flanges on its face, walls between said flange oblique to radial lines, grinding blocks in pairs lying between the walls, and means for forcing the blocks of each pair against contiguous walls and the outer flange to lock them in place.
2. A grinding wheel comprising a carrying disk having inner and outer flanges on its face, walls between said flanges oblique to radial lines, grinding blocks in pairs lying between the walls, a locking block between the grinding blocks of each pair and means for moving the locking blocks into locking position.
3. A grinding wheel comprising a carrying-disk having inner and outer flanges on its face, walls between said flanges oblique to radial lines, grinding blocks in pairs lying between the walls, means for adjusting the grinding blocks inward and outward and means for locking the grinding blocks in position after adjustment.
4. A grinding wheel comprising a carrying disk having inner and outer flanges on its face, walls between said flanges oblique to radial lines, grinding blocks in pairs lying between the walls, means for adjusting the grinding blocks inward and outward, a locking block between each pair of grinding blocks and means for moving the locking blocks into locking position.
5. A grinding wheel comprising a carrying disk having flanges on its face, grinding blocks provided with base plates, screws engaging the base plates to move said blocks inward or outward and means for locking said blocks after adjustment.
6. A grinding wheel comprising a carrying disk having flanges on its face, grinding blocks provided with base plates, screws engaging the base plates to move said blocks inward or outward, angular locking blocks each acting on two grinding blocks and screws engaging the locking blocks to move and retain them in locking position.
7. A grinding wheel comprising a carrying disk having inner and outer flanges on its face, said inner flange being inclined on its outer face and oblique walls between the flanges, grinding blocks, inclined locking blocks each acting on two grinding blocks, and screws held in the carrying disk and engaging the grinding blocks and the looking blocks, substantially as described, for the purpose specified.
8. A grinding wheel comprising a carrying disk having inner and outer flanges on its face and oblique walls between the flanges, grinding blocks in pairs between .the walls and adapted to project beyond the walls, leaving clearance spaces between the grinding blocks, and a locking block between the grinding blocks of each pair acting to force the grinding blocks against the walls and the outer flange.
9. A grinding wheel comprising a carrying disk having inner and outer flanges on its face and oblique walls between the flanges, grinding blocks in pairs between the walls and adapted to project beyond the walls, leaving clearance spaces between the grinding blocks, screws for moving the base grinding blocks inward and outward, locking blocks between the grinding blocks of each pair and means acting on the locking blocks to force the grinding blocks against the walls and the outer flange.
10. A grinding block whose outer end is a convex curve, whose inner end is a concave curve and whose front and read side lines are oblique to radial lines.
11. A grinding block having a metallic base provided with a threaded hole and whose inner and outer ends are respectively concave and convex curves and whose front and rear side lines are oblique to radial lines.
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1,525,994
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Feb. 10, 1925
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Machine Drive
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Elwin R. Hyde |
Bridgeport, Fairfield County, CT |
Abstract:
This invention relates to machine drives and particularly to a driving connection between two shafts or spindles, which rotate at a fairly high speed.
It is an object of my invention to provide a. driving means between such shafts which will not become overheated in operation and in which means is provided for cooling the power transmitting means between the shafts or spindles.
It is a further object of the invention to provide means whereby the driving connection may run in a bath of oil with means for cooling this oil to thus keep the driving connection from becoming overheated.
Claims:
1. In a machine drive, two substantially parallel spaced shafts, sprockets secured to said-shafts, a chain drive about said sprockets whereby one shaft may be driven by the other, means for rotating the driving shaft, a casing about the sprockets and chain and adapted to hold an oil-bath for a portion the chain, and means within the casing for circulating a cooling fluid through said casing.
2. In a machine drive, two shafts, a driving connection between said shaft, a casing about, said driving means adapted to hold a bath of oil for a portion of the driving means to run in, and means within the casing, for circulating a cooling fluid through said casing.
3. In a machine drive, two substantially parallel, shafts, sprockets secured to said shafts, a driving chain connecting said sprockets, means for rotating one of said shafts, a casing enclosing the chain and sprockets and adapted to hold a bath of oil for a portion of the chain, and means within the casing for circulating air through the casing to cool the oil and chain.
4. In a machine drive, two shafts, a driving connection between said shafts, a casing enclosing said driving connection and provided with an air inlet opening and an outlet opening, a fan adjacent the inlet opening, driven by one of said shafts and arranged to draw air into the casing through said opening and a bath of oil in said casing about a portion of said driving connection.
5. In a machine drive, two substantially parallel shafts, a driving connection between said shafts comprising sprockets secured to the shafts and a driving chain running on said sprockets, a casing enclosing said driving connection and provided with an air inlet opening and an air outlet opening, a fan adjacent said inlet opening driven by one of said shafts and arranged to circulate air through the casing from said inlet opening to the outlet opening, and an oil bath in said casing enclosing a portion of said chain.
6. In a machine drive, two substantially parallel shafts, a driving connection between said shafts comprising sprockets secured to the shafts and a driving chain running on said sprockets, a casing enclosing said driving connection and provided With an air inlet opening and an air outlet opening, said casing being adapted to hold an oil bath for a portion of the chain, means for circulating air through the casing from the inlet to the outlet opening, and means arranged to direct oil from the interior walls of the casing to the inside of the chain.
7. In a machine drive, two substantially parallel shafts, a driving connection between said shafts comprising sprockets secured to the shafts and a driving chain running on said sprocket-s, a casing enclosing said driving connection and provided with an air in let opening and an air outlet opening, said casing being adapted to hold an oil bath for a portion of the chain, a fan adjacent the inlet opening driven by one of said shafts and arranged to circulate air through the casing from said inlet opening to the outlet opening, and a trough arranged to collect oil running down the inner surface of one of walls of the casing and direct it to the top or inner side of the lower run of the chain.
8. In a machine drive, a pair of shafts, a pair of sprockets carried by said shafts, a driving chain on said sprockets, a casing enclosing the sprockets and chain and containing a bath of oil for a portion of the chain to run in, said casing being provided with an air inlet and outlet openings, a fan driven by one of the said shafts for circulating coo-ling air through said casing from the inlet to the outlet, and heat radiating fins on the exterior of the casing.
9. In a machine drive, a pair of shafts, a pair of sprockets carried by said shafts, a driving chain on said sprockets, a casing enclosing the sprockets and chain and containing a bath of oil for a portion of the chain to run in, said casing being provided With air inlet and outlet openings, a fan driven by one of the said shafts for circulating cooling air through said casing from the inlet to the outlet, heat radiating fins on the exterior of the casing, and a trough arranged to collect oil running down the inner surface of the casing and direct it to the top or inner side of the lower run of the chain.
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1,553,167
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Sep. 08, 1925
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Swing Frame Grinder
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Elwin R. Hyde |
Bridgeport, Fairfield County, CT |
Abstract:
This invention relates to grinders and particularly to a swinging frame grinder, and has for an object to provide a machine of this character which may be supported on a floor or suitable foundation, in which the grinding wheel will have universal adjustment and which grinder is so constructed that there are no supports or other elements extending above a certain height to interfere with the passage of a traveling crane over the machine.
It is also an object of the invention to provide a grinder in which the grinding wheel may be moved to practically any position desired and easily held therein by the operator.
Claims:
l. In a grinder, a base, an upright support mounted on said base and adapted to turnabout a vertical axis, an upright frame pivoted in said support, a housing pivoted in the frame, below the pivot for the frame, a grinding wheel carried by the housing and a motor for driving the wheel also carried by the housing.
2. In a grinder a base, an upright support mounted on said base and adapted to turn about a vertical axis, an upright frame pivoted in said support on a horizontal axis, a housing pivoted in the frame below the pivot for the frame and also; on a horizontal axis, a grinding wheel mounted in the housing and adapted for angular adjustment in the housing, and a motor carried by the housing for driving the wheel.
3. In a grinder, a base, an upright support mounted on said base and adapted to turn about a vertical axis, an upright frame pivoted in said support on a horizontal axis, a housing pivoted in said frame on a horizontal axis located below the said pivot for the frame, a grinding wheel, a support for the wheel carried by the housing adapted for angular adjustment thereon, means for clamping the support in different angular positions, a motor carried by the housing for driving said wheel, and one or more handles carried by the wheel support whereby it may be positioned and held during the grinding operation.
4. In a grinder, a base, an upright support mounted on said base and adapted to turn about a vertical axis, an upright frame mounted to swing on a horizontal axis in said support, a counter weight carried by said frame above said pivot, a housing pivoted in the frame below its pivot, a grinding wheel carried by the housing on one side of its pivot, a motor carried by the housing on the other side of its pivot, and a driving connection between the motor and wheel.
5. In a device of the character described, a base, an upright support mounted on said base and adapted to turn about a vertical axis, a frame mounted to swing in said support about a horizontal axis, a housing pivoted intermediate its length in said frame, a tool carried by the housing on one side of its pivot arranged for angular adjustment in said housing, means for clamping the tool in different adjusted positions, a motor carried by the housing on the other side of its pivot, and a driving connection between the motor and tool.
6. In a grinder, an upright support, a pivoted frame in said support adapted to swing about a horizontal axis, a housing comprising a tube, supporting, elements clamped to said tube intermediate its length on opposite sides thereof having trunnions pivoted in the frame and upright arms, tie rods extending over said arms and connected to the tube adjacent its opposite ends, a grinding wheel carried by the tube adjacent one end, a motor carried by the tube adjacent the other end, and a driving connection 'between the motor and wheel extending through said tube.
7. In a grinder, a support, a housing comprising a tube, supporting elements clamped to the opposite sides of the tube intermediate the ends thereof having trunnions pivoted in the support and upright arms, tie rods extending over said arms and secured to the tube adjacent the opposite ends thereof, a bracket carried by the tube at one end thereof, a motor mounted on said bracket, a casing mounted at the other end of said tube, a transverse shaft mounted in the casing, a grinding wheel mounted on said shaft, a shaft connected to the motor and extending longitudinally through the tube, and a driving connection between the two shafts.
8. In a grinder, a support, a housing comprising a tube pivoted intermediate its length in said support, a bracket carried by the tube at one end, a motor mounted on said bracket, a casing carried by the tube at its opposite end and having a split bearing embracing the tube to turn on said tube, means for clamping the bearing about the tube to hold the casing in different positions, a transverse shaft in said casing, a grinding wheel carried by said shaft, a shaft extending longitudinally through the tube and connected with the motor, and a driving connection between the two shafts.
9. In a grinder, a base, an upright support mounted` on said base and adapted to turn about a vertical axis, an upright frame mounted to swing on a horizontal axis in said support, a counter weight carried by said frame above said pivot, a housing pivoted in the frame below .its pivot, a grinding wheel carried by the housing on one side of its pivot and mounted for angular adjustment thereon, a motor carried by the housing on the other sides of its pivot, and a driving connection between the motor and wheel.
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1,582,608
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Apr. 27, 1926
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Sectional Grinding Wheel
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Elwin R. Hyde |
Bridgeport, Fairfield County, CT |
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1,589,855
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Jun. 22, 1926
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Sectional Grinding Wheel
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Elwin R. Hyde |
Bridgeport, Fairfield County, CT |
Abstract:
This invention relates to sectional grinding wheels, particularly of the type disclosed in my prior Patent #1,133,475 issued March 30, 1915, and has for an object to provide an improved means for securing the adjusting screws in the holder to facilitate changing of the blocks or the mounting of new blocks, to thus reduce to a minimum the time required for renewing the blocks after they have worn out and the time in which the machine must remain idle.
Claim:
A grinding wheel comprising a support having spaced flanges and perforations between said flanges, a plurality of separate grinding blocks mountable between the flanges, means for adjusting the positions of the blocks comprising a screw having threaded engagement with the blocks and having heads by which they may be rotated, said heads being adapted to be freely inserted through said perforations so as to be rotatable therein, a locking device on the support arranged to prevent longitudinal movement of the screw when so rotated to permit of adjustment of the block thereby, said device being movable to an ineffective position to allow such insertion and removal of the screw whereby the screw can be inserted into the block before assembly of the block in the support.
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2,051,618
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Aug. 18, 1936
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Block for Sectional Grinding Wheels
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Frank C. Penny |
Trumbull, Fairfield County, CT |
Abstract:
This invention relates to new and useful improvement in blocks for sectional grinding wheels of the type shown in patents to Hyde, Numbers 1,133,475 and 1,589,855 of March 30, 1915, and June 22 1926, respectively.
An object of the invention is to provide an improved construction of shoe for the blocks of a sectional grinding wheel. More specific objects of the invention are to provide a shoe for a block of a sectional grinding wheel and which shoe is light in weight and comprises a minimum of metal and may be manufactured at low cost whereby it need not be returned to the factory for refilling when the abrasive block is worn down.
Additional objects are to provide a shoe as indicated and which is so constructed as to be firmly attached to the block to which it is moulded, and which does not materially detract from the cross section of the block in its shearing zone, and which provides means whereby a marker plug may be moulded directly into the abrasive block on its inner end
Claims:
1. In a block for a sectional grinding wheel, a metal shoe, a block of abrasive material moulded onto said shoe, said shoe comprising a frame like structure open at both the front and back sides thereof comprising a body having inner peripheral edges about the opening in the back and outer peripheral edges about the outside of the frame, inner and outer forwardly projecting flanges on said body at said edges, said inner flange inclining inwardly of the body away from the outer flange and having its rear wall inclined outwardly toward the rear surface of the body.
2. In a shoe for a block of a sectional grinding wheel, a frame-like structure open ,at the front and rear comprising a body having inner peripheral edges about the opening through the back and outer peripheral edges about the outside of the frame, a rib extending across the body and connecting a pair of portions thereof, .said rib having a tapped opening therein, a forwardly projecting flange at the outer edge of said body, a flange at the inner edge of the body and at each side of said rib and inclining forwardly of peripheral edges about; the opening through the back and outer peripheral edges about the outside of the frame, a forwardly extending flange at the inner edge of said body, said flange inclining in a direction away from the outer edge of the body, and the rear wall of said flange being inclined outwardly from its free edge.
4. In a shoe for a block of a sectional grinding wheel, a frame-like structure comprising a body open at the front and rear having inner and outer peripheral edges, inner and outer forwardly projecting flanges on said body at said edges, said inner flange inclining away from the outer flange, the inner surface of said outer flange being inclined outwardly whereby the flange is thinnest at its forward edge, and the rear wall of said inner flange being inclined rearwardly in the opposite direction.
5. In a shoe for a block of a sectional grinding wheel, a frame-like structure comprising a body open at the front and rear having inner and outer peripheral edges, inner and outer forwardly projecting flanges on said body at said edges, said inner flange inclining away from the outer flange, the inner surface of said outer flange inclined outwardly whereby it is thinnest at its forward edge, said inner flange extending about the inner edge of said body and having a rear. wall inclined outwardly and rearwardly from its inner edge.
6. In a shoe for a block of a sectional grinding wheel, a frame-like structure comprising a body open at the front and rear having inner and outer peripheral edges, a rib extending across the body and connecting a pair of portions thereof, said rib having a tapped opening there through, a forwardly projecting flange at the outer edge of said body, a flange at the inner edge of the body extending forwardly and inclining away from the outer flange, with its rear wall inclined outwardly and extending to the rear surface of the body.
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2,396,505
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Mar. 12, 1946
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Grinding
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Clarence Gumper |
West Haven, New Haven County, CT |
Abstract:
Many times it is desired to grind cylindrical articles so as to finish or partially finish the external or peripheral surface thereof, or to reduce the article to a desired diameter.
In the grinding of rubber and rubber like articles, great difficulty has long been encountered, for with such articles an excessive amount of heat is developed not only by the friction produced between the grinding wheel and the article but also by the energy consumed as a result of the progressive distortion or displacement of the relatively soft material by the grinding wheel as the latter is traveled along the rotating article to be ground. This excessive amount of heat results in burning or partially melting the article and causes the grinding wheel to deteriorate rapidly, requiring it to be frequently dressed and permitting its use for only a relatively short time.
In addition to developing excessive heat, the drawing or distortion of the material of the article in the direction of the cut produces a hump which, becoming excessive, suddenly passes under the wheel. This causes the wheel and article to chatter leaving undesirable, rough and uneven surfaces on the article as evidenced by a discernible pattern produced on the surface thereof.
Another difficulty has been that in grinding interrupted or broken cylindrical surfaces such as a disk with projections very much like gear teeth, it frequently occurred that although the grinding wheel was properly adjusted for successfully performing the operation on a number of pieces, it was not infrequent that the grinding wheel would bite into the projections and knock or rip them off, thus spoiling the piece. This happens most frequently when the article is made of a harder or less resilient rubber or rubber-like composition.
It has been the practice heretofore to employ a wheel of reasonable width considering the amount of material to be removed from the article to be ground and the ability of the wheel to withstand the centrifugal force tending to disintegrate it at the high speeds at which such wheels are unnecessarily operated. It has been thought that the use of a narrower wheel, to reduce the operative width of the grinding Wheel and thus the number of abrasive grits which may be operative on the article to be ground at one time, would result in a slower and less efficient grinding operation, and this is probably true with regard to conventional grinding wheels. The use of a narrower wheel did not solve the problem, for it left the surface of the article patterned by rough uneven surfaces.
However, the difficulties above referred to have been solved by the present invention by providing a grinding wheel of essentially the same width as conventional grinding wheels used for the same purpose, but having its grinding surface interrupted or divided by a space so as to form two (or more in the event that more than one space is provided) grinding surfaces to be presented seriatim to the article to be ground as the work progresses. I have found that when the grinding wheel is so divided, notwithstanding the fact that both surfaces operate in the same plane, the leading grinding surface removes the larger quantity of material to be ground off during the traverse of the work by the grinding wheel, and does so without excessive drawing of the material being ground, and that whatever stress is present in the material, as a result of the grinding operation by the leading grinding surface, it is relieved at the space between the two grinding sections so that the material resumes its normal position, leaving to the second grinding surface the comparatively light work of finish grinding, that is to say, smoothing off the chatter marks caused by the first grinding surface; and that the material after the second grinding surface has passed over it is comparatively smooth and free of any irregularities such as an objectionable pattern of chatter marks.
I have found that the dividing groove may be quite narrow without reducing the efficacious operation of the wheel. For instance, I have found that with a 10" diameter wheel having a width from edge to edge of 1", the groove may be only wide to obtain the desired results as above stated.
The groove may have any desired depth depending upon the amount which the wheel may be worn or dressed off before it is discarded and depending upon the strength of the bonding medium in the wheel to resist disintegration of the narrowed wheel sections due to the centrifugal force developed at the high speeds at which such grinding wheels are used. 'With the particular composition which I employ which has a Bakelite base, I have found that the groove in a 10" wheel such as above described may be at least 1" deep.
In the operation of the wheel of the present invention, when taking a cut of the same depth as would be done with a conventional wheel and which would then result in excessive overheating not only of the article being ground but also of the wheel and driving motor, it has been found unexpectedly that the temperature of the article being ground has not been substantially or excessively raised nor does the motor operate at a temperature higher than any other electric motor developing its full power. Likewise, the wheel is not excessively hot. In fact, the temperature of the article, the grinding wheel and the motor is such that the article being ground and the motor may be touched by the hand without danger of burning, an act which would be extremely dangerous with a conventional grinding wheel.
I do not have any definite or conclusive understanding as to the reason for the development of so little heat with the use of the wheel of the present invention. I simply know it to be a fact. One theory advanced is that since the distortion and displacement of the material being ground is relieved when the space between the two grinding surfaces is reached, less useless work is performed with the resulting development of less heat. The grinding wheel is usually employed in connection with a blower system which sucks in fresh air as well as the dust from the grinding operation. In view of this, another theory for the reduction of operating temperatures and thus the prolonging of the life of the wheel and the reduction of spoilage of the articles being ground, is that the work of grinding off the material is distributed between two grinding portions of the wheel which rotate in an atmosphere of continuously fresh air and having a groove between them radiate their heat more rapidly. However, experiments have not established either theory conclusively, and it may be that the reasons for the improved results obtained by the use of the wheel of the present invention is a combination of those above suggested and possibly some others as yet unknown.
The present invention may be applied in various sorts of ways to existing or conventional wheels and to wheels of various shapes and sizes, so long as the leading and trailing grinding surfaces operate in substantially the same plane.
Claims:
1. The method of grinding rubber-like articles which includes the steps of adjusting a rotating grinding Wheel to take a cut of desired depth in a rotating article; feeding the wheel along the article, the article being relieved of grinding stress at a place between leading and trailing sections of the wheel which have a straight-line contact with a tangential plane.
2. The method of grinding rubber-like articles which includes the steps of rotating an article contacting the article with a grinding wheel having a straight line contact with a tangential plane parallel to the axis of rotation of the article to take a cut of desired depth while feeding the wheel along the article, the article being relieved from contact with the wheel intermediate the edges of the wheel, and again immediately contacting the wheel with the article as the wheel travels there along.
3. The method of grinding rubber-like articles with a wheel having a straight line contact with a tangential plane which includes the steps of contacting the work with a leading section of the wheel to take a desired out while feeding the wheel along the article; and contacting the article with a trailing section of the wheel which is in substantially the same plane of contact as the leading section and spaced from the latter by a gap, the article opposite the gap being relieved of grinding pressure from the wheel.
4. The method of grinding rubber-like articles with a wheel having a straight line contact in a tangential plane which includes the steps of taking a full depth cut with the leading section of the wheel while feeding the wheel along the article, and finish-cutting the surface with a trailing section of the wheel, the article being relieved of grinding pressure immediately after the first cut by the leading section of the whee
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