US623314A

US623314A - Machine for grinding chilled rolls

Info

Publication number: US623314A
Authority: US
Publication date: 1899-04-18
Anticipated expiration: 1916-04-18

Description

N0- 62 |4- Patented Apr. 18, I899.

- A. L. KELLY.

MACHINE FOB GRINDING CHILLED BULLS.

(Application filed Oct. 22, 1898.) (No Model.) 2 Shuts-Sheet I.

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N0. 623,3!4. Patented Apr. l8, I899. A. L. KELLY. MACHINE FUR GRINDING CHILLED ROLLS.

(Application filed Oct. 22, 1898.) (N0 Model.)

2 Sheets-Sheet 2.

lV/TIVESSES i INVENTOR 7 g I. 7 Allarney UNTTED STATES FFTQE.

PATENT ADAM L. KELLY, OF IVHEELING, IVEST VIRGINIA.

SPECIFICATION forming part of Letters Patent No. 623,314, dated April 18, 1899.

Application filed October 22, 1898. Serial No. 694,262. (No model.)

To ctZZ whom it ntay concern:

Be it known that I, ADAM L. KELLY, a resident of lVheeling, in the county of Ohio and State of lVest Virginia, have invented certain new and useful Improvements in Machines for Grinding Chilled Rolls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in machines for grinding chilled rolls, the object of the invention being to provide a machine which can be readily adjusted to grind a roll so as to impart thereto a concave or straight cylindrical periphery.

A further object is to provide a machine of the above character which will be automatic in its operation and which can be readily adjusted to accommodate different-sized rolls.

A further object is to provide a machine of the above character which will be comparatively simple in construction and most effectual when in use.

lVith these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a front view of my improved machine, showing the roll to be ground broken away and the roll-turning mechanism partly in section. Fig. 2 is an end View, and Fig. 3 is a view in transverse section, of same.

1 represents a base orbed plate having upright parallel front and

rear sections

2 and 3 and projecting lugs f at each end to secure same to the floor. The rear section 3 is higher than the front section 2'and is enlarged at its top, as shown at a, and provided with an inclined rear face on the enlarged portion 4: whereby to form a guide for a sliding carriage 5, which will be hereinafter more fully described. The rear section 3 of the bedplate is cutout, as shown at 6, and the upper edge of the rear plate, below the cut-out portion, is grooved, and the front section 2 is grooved in alinement with the groove in the rear section for the reception of .a shaft or axle 7,-which passes through holes or openings located centrally in depending side sections 8 of a tilting platform 9, more fully hereinafter described. Suitable caps 10, having oil-ducts 11 therein, are disposed over the ends of the shaft or axle 7, and said caps are secured in place by means of suitable bolts 12.

The tilting platform 9 is approximately the length of the bed'plate 1 and is provided at its respective ends with lugs 13, having internally-screw-threaded holes f or the passage of screw-threaded bolts 15, the lower ends of which rest upon or are swiveled in the upper ends of posts 14: on the bed-plate. The upper end of each bolt 15 is provided with an angular enlargement 16 for the reception of a wrench whereby to turn the bolt and raise one end of the platform and lower the other, and thus tilt the same when it is desired to provide a roll with a concaved periphery. The upper face of the tilting platform 9 is provided centrally with a longitudinal groove 17, angular in cross-section, and said platform is also provided near each edge with a longitudinal dovetailed groove 18. Adjustable housings 19 for the reception of and support for the roll to be ground are disposed at respective ends of the tilting platform and are made concave to approximately conform to the contour of the roll. Each housing or roll-support is provided on its lower edge with one or more lugs or projections 20, which depend into the groove 17. Each lug or projection-2O is provided with a screw-threaded hole for the reception of a screw 21 whereby to adjust said housing according to the length- 'of the roll to be ground.

Suitable dovetailed guiding-flanges depend from the housings and enter the dovetailed grooves 18 in the platform.

The curved faces of the housings are each provided at diametrically opposite points and in their bottoms with grooves or recesses for the reception of cushion-blocks 24 25, made of any suitable material and adapted to sustain the weight of and properly support the roll with relation to the grinding means.

Brackets 26, each having an upright member 27 and ahorizontal member 28, connected by a web or brace c, are secured at each end of the upright rear section 30f the bed-plate 1 by means of bolts 29.

A housing 30, made with a circular opening ICO or hearing 31 near its upper end and split, as shown at 32,is secured on the horizontal in ember 28 of each bracket 26, and said housings 80 are provided with a cut-out portion 33 at their lower ends whereby to permit the passage of a bolt or bolts 34 through the lower edge 35 of the housing into thebracket 26 and secure the housing in place. Each housing 30 is provided at its front edge with a bracket 36, adapted to receive a block 37, having an opening therein for the reception of the non-threaded portion of a screw 38. A shaft or guide 39 is disposed in said openings 31 in the housings 30 and is securely clamped in place by means of bolts 40, which pass through upwardly-extending ears 41 on each split section of the housing 30, as shown.

A sliding carriage 42, having downwardlyextending longitudinal flanges 43 disposed one on each side of the guide 4, extends rearward and is provided on theupper face of its rear end with an upwardly-projecting section 43, curved on its rear face in the arc of a circle, as shown at 44. A semicircular cap 45 is secured to the rear section of the carriage 42 and is adapted, together with the section 43 of the carriage, to surround the shaft 39 and permit the sliding carriage to be moved thereon. A bracket 46 is provided on said carriage for the reception of a screw-th readed block 47. The block 47 is adapted to receive the screw 38, an d as said screw turns in either direction the sliding carriage will be moved toward one end of the machine. A rod 57 is disposed between the brackets 26, and suitable springs 58 are disposed at or near each end of said rod whereby to engage a downwardly-projecting arm on the bottom of the sliding carriage when said carriage is moved to either extreme position, and hence prevent a su dden shock to the machine, which would be liable to result in injury thereto.

A wedge-shaped groove 48 is provided in the upper face of the carriage 42, and a grinder-frame 49 is disposed therein and adapted'to be adjusted by means of screw 50 and block 51, as shown. The grinder-frame 49 is made in two hollow sections having extended bearing-faces 52 secured together by means of bolts 53, said bearing being recessed or grooved for the reception of a shaft 54, on which an emery or grinding wheel 55 is centrally located and secured. A pulley 56 is secured at each end of said shaft outside of the grinder-frame for the reception of belts 56 from any convenient source of power. A suitable moisture-supply tube 17 is connected with the top of said grinder-frame 49, whereby to supply moisture to the grinder or emery-wheel.

Suitable pulleys 6O 61 are disposed in a bracket cl in one end of the machine and are adapted to receive suitable belts (not shown) to turn same. These pulleys are separated by a clutch 62, which can be operated to throw either one or the other into engagement with the screw 38, and when one of said pulleys is in engagement with the screw whereby to turn the same in one direction or the other, and thus control the direction of movement of the carriage carrying the grinding mechanism.

The roll a to be ground is provided at its end with grooves 62 for the reception of pins. 63 on one member 63 of a universal coupling 64. The other member 64 of the universal coupling is secured to one end of a shaft 65, which is circular throughout a greater portion of its length, but is made angular at its end 6, to be secured in and turn with a hollow revolving axle 66, mounted in suitable bearings 67 and havinga large drivepulley 68 secured thereto.

The operation of my improved machine is as follows: The roll a to be ground is placed in the housings 19 and the drive-pulley 68 connected therewith by means of the shaft and universal coupling 64. Ifit is desired to grind the roll concave, it is simply necessary to turn the bolt 15 at one end of the tilting platform 9 and tilt the platform, which will permit the grinder 55 to grind a greater portion from the center of the roll than from the ends, and hence concave the roll when the grinder is moved from end to end thereof. The grinder-frame 49 is forced forward by means of the screw 50 until the grinder is in contact with the roll. The machine is then started, and as the roll is turned in one direction the grinder is turned in the opposite direction by means of the pulleys 56 and belt therefor, and the sliding carriage 42 is drawn to one end of the slide 4 by means of the screw 38. When the carriage reaches one end of the slide 4 and the clutch 62 is in engagement with the pulley 61, the clutch will be thrown into engagement with the pulley 60 and the screw 38 will be turned. in the opposite direction and the sliding carriage will be carried to the other end of the slide 4, when the clutch can be again thrown into engagement with the pulley 61, and so on throughout the operation of grinding.

Various slight changes might be resorted to in the general form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I would have it understood that I do not wish to limit myself to the precise details set forth, but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is

1. A machine for grinding rolls concave, consisting of a platform having a central pivotal support, means on the platform for supporting the roll to be ground, a grinder disposed so as to be alongside the roll to be A machine for grinding rolls concave, consisting of abase, atilting platform mounted at its center on said'base, set-screws adjacent to the respective ends of the platform cooperating with the base to secure the platform in an inclined position, means on the tilting platform for supporting the roll to be ground, a grinder disposed so as to bealongside the roll with its axis at an angle to the axis of the roll, and means for feeding said grinder longitudinally of the roll.

3. In a grinding-machine,the combination with a tilting platform and means thereon for revolubly supporting a roll to be ground, of a grinder adapted to travel longitudinally of the roller at one side thereof and means for rotating said roller.

4. In a grinding-machine, the combination with a bed-plate, of a tilting platform pivotally connected with said bed-plate and adapted to support a roll to be ground, a sliding carriage mounted on said bed-plate at one side of the platform a grinder-frame adjustably mounted on said carriage, a grinder in said grinder-frame and means for rotating said grin der and means for rotating the roll to be ground.

In a grinding-machine, the combination with a bed-plate having upright sides, of a tilting platform pivotallysupported between said sides and carrying housings for supporting a roll to be ground, a sliding carriage disposed on one of said sides of the bed-plate and a grinder adjustably mounted on said carriage and adapted to engage the roll to be ground and means for simultaneously rotating the roll and grinder and feeding the carriage longitudinally of the roll.

0. In a grinding-machine, the combination with a bed-plate having upright front and rear sections, of a tilting platform pivotally mounted between said front and rear sections, means on said platform for supporting a roll to be ground, a sliding carriage disposed on the rear upright section of the bed-plate, a grinder-frame adjustably mounted in said carriage, a grinder in said frame, pulleys connected with said grinder and means for supplying moisture to said grinder.

7. In a grinding-machine, the combination with a bed-plate having upright front and rear sections, of a tilting platform pivotally mounted in said bed-plate, a carriage mounted on said rear section of the bed-plate, a screw adapted to move said carriage and means for operating said screw.

8. In a grinding-machine, the combination with a-bed-plate, of a tilting platform pivotally mounted in said bed-plate, a carriage also mounted in said bed-plate, a grinder-frame mounted in said carriage, a grinder in said frame and cushions for preventing a shock when the carriage reaches the ends of its movement.

9. In a grinding-machine, the combination with a bed-plate and atilting platform mounted on said bed-plate and adapted to support a roll to be ground mounted thereon, of brackets secured to said bed-plate, housings supported by said brackets, a shaft secured in said housings and a carriage disposed on said bed-plate and adapted to move on said shaft and a grinder mounted on the carriage.

10. In a grinding-machine, the combination with means whereby to support a roll to be ground and means for grinding said roll, of a drive-pulley, a hollow axle for said pulley having an internally-angular portion, a shaft having an angular portion to enter the angular portion of said hollow axle and a universal coupling connected with said shaft and adapted to be connected with the roller to be ground.

11. The combination in a cold-roll-grindin g machine of a tilting platform, housings on said platform adapted to support a roll, a drivepulley adapted to turn the roll to be ground and means on said pulley whereby to adjustably connect same with the roll to be ground.

12. The combination with a cold-roll-grinding machine, of a platform, housings on said platform adapted to support a roll to be ground, cushion-blocks disposed in recesses in the housings and adapted to bear against the roll to be ground and means for turning said roll.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ADAM L. KELLY.

IVitnesses:

T. M. GARVIN, ALEXANDER HIRTH.