US289556A - Device foe grinding and grooving mill eollees - Google Patents

Description

(No Model.) 6 Sheets-Sheet' 1.

E. REIN.

DEVICE FOR GRINDING AND GRO'OVING MILL ROLLERS.

No. 289,556. Patented Dec. 4,1883.-

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(No Model.) 6 Sheets-Sheet 2.

R. REIN.

DEVICE FOR GRINDING AND GROOVING MILL ROLLERS.

No. 289,556. Pagented Dec. 4, 1883.

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(No Model.) 6 SheetK-Sheet 3.

E. REIN DEVICE EOR GRINDING AND GROOVING MILL ROLLERS.

No. 289,556. Patented Dec. 4, 1883.

(No Model.) 6 SheetsSheet 4.

E. REIN. DEVICE FOR GRINDING AND GROOVING MILL ROLLERS.

No. 289,566. Patented Dec. 4, 1883.

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E. REIN. I

DEVICE FOR GRINDING AND GROWING MILL ROLLERS. No. 289,556. Patented Dec. 4, 1883.

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' E. REIN. v

DEVICE FOR GRINDING AND GROOVING MILL ROLLERS. No. 289,556.

Patented Dec. 4, I883.

a x Z v UNITED STATES PATENT OFFICE.

nnnnsr REIN, or MILWAUKEE, Wisconsin.

SPECIFICATION forming part of Letters Patent No. 289,556, dated'December 4, 1883.

Application filed December 20, 1881. (X model.)

To all whom it may. concern:

Be itknown that 'I, ERNEST REIN, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Devices for Grinding and Oorrugating Mill-Rollers; and. I do hereby declare that the following is a full, clear, and exact description thereof.

This invention is designed as an improve menton a machine consisting, essentially, of

a lathe-bed withbearings for arbors, a sliderest carrying cutters, a feed-screw for actuat ing the slide-rest, and actuating and shifting mechanism for cutting grooves in mill-rollers;

\audthe main object of my improvements is to improvethe eificiency of this machine.

My improvements consist'in the novel construction and combination of parts, as will be hereinafter more fully set forth. y Tn the drawings, FigureLSheet l, is a side v w of my invention with the parts in posi:

tion for. grinding a mill-rol1er.

Fig. 2, Sheet l, is a plan with the grooving mechanism adjusted for action. Fig. 3, Sheet 2, is an elevation of the driving end of my machine; Fig. 4, Sheet 2, a like view of the feeding end. Figs. 5 and 6, Sheet 3, are details of the feed ing mechanism, partly in elevation andpartly in section. Fig. 7 is a plan view of the toolcarriage reversing mechanism and clutch Fig. 8 is an end view of the shifting mechanism. Fig. 9 is a perspective view of thetoolcarriage. Fig. 10 is a plan view of the same and adjuncts. Fig. 11 isan end view thereof, and Fig. 12 is a sectional view of the bevelgear operating the shifting mechanism of the clutch. y

A is the frame of my machine, and A is a carriage sliding on ways fixed to one side of theframe. Through a screw-threaded aperture in the carriage A, or a nut depending from it, I extend a lead-screw, M, the shaft M" of which has its bearings in the ends of the carriage A. Just outside of its bearing,on the front or power end of the shaft M, a bevelwheel, I, is keyed to it. This bevel-wheelI is dish-shaped, and has a central hub, t, on which is keyed a miter-wheel, K. On its op posite end the shaft of the lead-screw M is continued through the frame A, and carries a bevel-wheel, N, and worm O. The bevel? wheel N gears with "anotherbevel-wheel, N, on the other endof the shaft of which is a cog. wheel, (I, geared with a cog-wheel, d", on shaft U by an idler, d. On the end of shaft U, op;

)ositethe co -wheel d, is a worm U that 1 b 7 3 gears witha segment, T, (see Fig. 4,) for a purpose hereinafterto be explained. The worm O on the shaft M gears with a wheel, O, thatscarries a cam, P, the lowerrend of whichis designed te-aehnpon an arm, q, of a lever, Q, as seen in Figs. 2 and 6. The arms of lever Q spring from a sleeve, Q2, that is keyed on one end of ashaft, s, on the opposite end of which is a forked arm, 1%, that engages with a sleeve, Z, on a hollow shaft, Z, within which is a rod, p, connected to said sleeve, so

that the weight g on arm q of lever Q will i always have a tendency to throw the rod 19 in the direction of the arrow, lever Q being limited in its action by an adjusting-screw, g that, passing through its arm q restsjupon the bed of theframe. Slots in shaft Z (see Figs. -1 and 5) permit the proper play of the sleeve Z. The segment T has afiange, T,

and a hub, which fits upon the hub of awornr wheel, V, that is keyed to hollow shaft Z. Thefiange T of segment T has bearings ttfor the upright shaft of a worm, in. The shaft of worm w is reduced near its top, to receive loosely the hub of a small segment, 12, and

above this hub is keyed a ratchet-wheel, c. 4

On its top the flange T is provided with lugs, to which is bolted the bearing 0 of a vertical shaft, that carries a segment, I), on its upper end, and a small spur-wheel, a, on its lower 7 end. The segment/b meshes with segment I), (see Figs. 2, 5, and 6,) and a pawl, 0 engages with the teeth on ratchet-wheel 0, so that any outward motion of the rod will be communicated by rings a thereon to gear or spur a and segment I), thepawl c of which will jig the ratchet c, thns turning the shaft of worm Near its pulley end (see Figs. 2 and J serratedto engage with one ofthe serrated endsof a sleeve, H, that is keyed to shaft L, in such a manner as to have longitudinalplay. The shaft L passes through another sleeve, IF, and on this sleeve are adjustably secured by set-screws miter-wheel K and bevel-wheel I From the lower portion of housing L (see Figs. 3 and 8) I extend a bar, Z, and to the outer end of this I pivot a bell-crank lever, Z, the end of one arm of which is forked and e11- gages with the sleeve H, and the otherI pivot to a spring-rod, 0', that passes through a tubular arm, 7*, on the end of a short rod, 0, that works in hanger r. Bevel-pinions 0 0 connect rod 1" with a rock-shaft, n, the arm n of which is pivoted to a rod, m, that extends along in front of the ways A, and has two adjustable collars, 1 and 2, in position to receive the impact of a projection, m, on the carriage that carries the cutting-tool.

So far I have described my machine with reference to its action in grooving chilled rollers, and this it does as follows: In Fig. 2 the carriage is shown as having traveled nearly half the distance along the face of a roller to make a groove. The shaft L is being turned by the pulley C, and bevel-wheel I is in gear with the bevel-wheel I, which turns the headscrew and slowly revolves it to draw the carriage, which, after it has reached the end of the roller, continues to advance until the projection m or the lower edge of its face strikes the projection 2 on rod m. This moves the arm a of the rocleshafta, and causes the bevel- 1 wheel 0 to revolve its companion 0, and this causes the shaft 1" to revolve far enough to turn its arm and shift the clutch H to reverse the motion of the carriage A. How this is done I will explain by reference to Figs. 1, i 7, and 10. In these figures the clutch or sleeve II is shown in gear with bevel-wheel I, so that the larger bevel-wheel I is being revolved by the small bevel-wheel I, and the lead-screw is slowly drawing the carriage and its tool along the face of the roller. The tubular arm r on shaft 1" and the spring-rod are horizontal, and the lower arm of lever Z is pointing downward. Now, the carriage A is being drawn slowly in the direction of the arrow by the operation ,of small bevel-wheel 1 upon largebevel-wh'eel I. After the tool has cleared the roller a projection, on, on the carriage will strike the projection 2 on rod on, and this will move the arm of rock-shaft a, and through bevel-gearing o 0 give just enough rotation to rod 4* to cause it to overcome the tension of the spring onrod i", and raise it to such an angle as when the carriage A has reached its limit of travel toward the shaft L, and is ready to re- Q turn, and up to this point the sleeve or clutch 1 H has "of course been intermeshed with the hub of bevel-wheel I. Now, at the moment that projection m on the carriage strikes the projection 2 of the rod m, arm X of the rockshaft at strikes against lug 3, fixed to the frame A, and is thrown back far enough to cause the arm and rod x to act upon a lever which projects from the, circular tool-holder, and turn it back, so as to withdraw the tool from contact with the roller during the return of the carriage to the place of starting. At the moment of contact of the arm X with lug 3, the projection m, as heretofore stated, strikes the projection 2 of the rod m, and drives forward the arm n,turning the bevel-gear 0 and 0, which resultantly shifts the clutch H, and reverses the movement of the lead-screw M, and returns the tool-carriage to the point of starting. When the carriage is carried back so that projection m strikes the projection l on the rod m, arm a is drawn back, and,-through the bevel-gearing 0 and 0 and connections, shifts the sleeve H, and reverses the movement of the lead-screw M, so as to carry the carriage and tool forward in contact with the roller. At the moment of contact of the projection m with projection 1, the arm X also comes in centact with the lug 4, and, by means of its connections, through the rock-shaft x and rod 00' and spring so, w1th the lever controlling the cutting-tool, forces the tool in position for cutting against the face of the roller. Now, while the lead-screw is turning to the right and drawing the carriage A toward the shaft L, its bevel-wheel N, engaging with bevelwheel N, will cause its shaft to turn cog-wheel d, and, through idler d and the cog-wheel 01 to turn the shaft U, causing its worm to move the segment T in a direction from the cogwheel (P. The shaft of the worm in is mounted in bearings t t on the flange of segment T, as before stated, and the threads of worm w engage with the teeth of a worm-wheel, V, secured to the hollow shaft Z. This shaft Z carries a bell-chuck, in which the shaft of the roll to be grooved is secured, and when the segment T is moved from the cog d the worm 10 will push up the teeth of the cog-wheel V, I

and cause it to turn the shaft Z slowly, and of course as the shaft Z turns it will turn the roll that is being grooved, so that the cut made by the tool will be spiral. When the direction of the rotation of lead-screw M is changed, and while the carriage A is being returned,the bevel-wheel N, operating through the chain of gearing before described, will cause the segment T and worm w to turn the hollow shaft Z and roll back into position for a fresh cut, and in the meantime the worm O on shaft M has operated the wheel 0, that carries the cam I and has caused this cam l? to depress the arm (1 of the lever Q, and has caused the forked arm R of shaft 8 to throw the sleeve Z outward, and with it the rod p, and when this occurs the rings a on shaft 12 will turn the small wheel a, the shaft of which carries a segment-wheel, b, and this wheel, acting upon segment I), will cause its ratchet c to jig the ratchet-wheel c, which in turn will partly revolve the worm w. The pawl 0 turns esasac the ratchet-wheel c intermittingly, and the jigging takes place just as the carriage A has been returned for a fresh cut. The worm w, when operated by the jigging of ratchet-wheel 0, very slightly turns the cog-wheel V, and this turns the shaft Z and the roller, to give the proper feed. a

I have two means of regulating the amount of feed to determine the number of grooves on a roll. In the first place, by means of the screw 9, I may elevate the weighted end of the lever Q, so that its arm (1 will be held so low as to be cleared by cam I? when carried down by wheel O.- Then the machine will not feed at all, and from this point the lever Q may be so adjusted by screw g that the cam may strike as soon as it begins to move, and carry the sleeve Z from one endto the other of the slots in shaft Z. This will cause the rings a a on rod 1; to revolve the wheel a far enough to take up the entire rangeof adjustment; but even this may not be sufficient, and therefore I may replace the ratchet c by one carrying a greater or less number of teeth. The shaft of cog-wheel d has its hearings in a slotted arm, N the hub of which slips over the shaft of .bevel-wheel N, and is bolted to its bearings,

so as to be adjustable about the center of motion of cog-wheel d. By this arrangement I am enabled to'replace the pinion'd by one of greater or less diameter, and thus regulate the speed of the shaft U.

When Idesire to grind off thcsurface of an old roll preparatory to regrooving it, I move the brackets E E nearer to the shaft L, and, placing the shaft of the roll in its bearings, I secure it by a bell-chuck to the shaft of a wheel, D, that has its hearings in a bracket, F. I then remove the plate G of carriageA, that carries the tool-holder, and replace it by a plate carrying brackets, in which is j ournaled a grinding-wheel, G, and on one end of the shaft of this wheel G, I key a pulley, and belt it to any suitable source of power. I then shift the miter I into gear with the bevel I, and when the shaft L turns it will reciprocate the carriage A, as before stated, and at the same time this shaft, through its worm, will revolve the wheel D and its shaft, whichin turn will revolve the roller, so as to present its whole surface to the grinding-wheel. Of course while the grinding mechanism is in 2. The device for reversing the lead-screw,

consisting of a rod, M, rock-shaft n, and shaft 1, geared thereto, and having a tubular arm, r, in combination with a spring-rod, bell-crank,

lever, a clutch, and sleeves carrying bevelwheels, as set forth.

3. The combination, with a movable toolholder provided with. the projection m, of

the rod m, provided with the projections 1 and 2, rock-shaft a, with arm n, shaft 0, clutch H,

and connecting-gearing, substantially as and for the purposesset forth.

4.- The combination of leadscrew M, carrying a worm, O, a wheel carrying cam P, a rockinglever, Q, sleeve Z, a rod, 1), wheel a,

segments b and b, a ratchet-wheel, c, with a ratchet, c worm 10, wheel V, and the hollow shaft Z, as set forth.

5. The combination of the lever Q, having arms (1 and g, weight g, and adjustingscrew (f, and forked arm R, with rod 1), as set forth,

6. The shaft L, with loose bevel-wheel I and sleeve H, in combination with the bevel-wheel I and lead-screw M, substantially as and for the purpose set forth.

7. The shaft L, with sleeve II, and sleeve L, with miter-wheel K, in combination with the miter-wheel K and lead-screw M, substantially as and for the purpose set forth.

8. Shaft L, sleeve H, and sleeve L", with bevel-Wheel I in combination with the bevelwheel I and leadscrew M, substantially as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 21st day of November, 1881.

ERNEST REIN.

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