US420152A - Splitting-machine - Google Patents

Description

5 Sheets-Sheet 1.

{No.Model.)

C. S. PIFIE'LD.

SPLITTINGMAGHINB.

PatentedJan. 28, 1890.

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Patented Jan. 28, 1890.

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G FN .U ST .M GDL S n d 0 M o m No. 420,152. Patented'Jan. 28,- 1890.

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C. S.FIFIELD. SPLITTING MAGHINE. No. 420,152. PatentedJan. 28, 1890.-

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Y C.V S. FIFIELD SPLITTINGVMAGHINB.

No. 420.152, Patented Jan. 28,1890.

NI IWW AIIIINIU UHU! www NiTnD STATES CHARLES S. FIFIELD, OF REVERE, MASSACHUSETTS.

SPLITTING- MACHINE.

SPECIFICATION forming' part of Letters atent No. 420,152, dated January 2S, 1890.

Application filed .Tune 28, 1889. I Serial No. 315,915. (No model.)

To all whom it may concern.'

Be it known that I, CHARLES S. FIFIELD, of Revere, in the county of Suffolk and State of Massachusetts, have invented a new and use4 ful Splitting-Machine, of which the following is a specification, reference being had to the accompanying drawings, in Which- Figure 1 is a front elevation of a machine embodying my invention, the guard being removed for greater clearness. Fig. 2 is a rear elevation thereof; Fig. 3, an elevation thereof, partly in section,on line 3 3 ofrFig. 1; Fig. 4, an elevation, partly in section, on line 4 4 of Fig. 1. Fig. 5 is a sectional view illustrating the feed-rolls,'knife-deiiector, and roll, and leather in process of splitting; Fig. 6, a view, partly in section, on line 6 6 of Fig. 3, showing a spring and parts connected therewith; Fig. 7, a sectional view on line` '7 7 of Fig. 3, showing the feed-rolls, the hangers, and the slide for adjusting the boxes of one of the rolls. Fig. 8 shows a modified form of contrivance for regulating the position of the upper roll.

My invention consists, iirst, in the combination of a roll having peripheral grooves with fingers which work in the grooves; secondly, in the combination of feed-rolls, a deiiector, and roughened roll which directs the split in one direction while the waste passes in another direction, and also increases the draft on the leather; thirdly, in the combination of the boxes of one of the feed-rolls with a spring to hold this roll in proper relation t'o the other roll and the knife; and, fourthly, the combination of a pair of feed-rolls and a knife and with a scale and pointer.

In the drawings, in which I show myinvention embodied in the best way now known to ine, A is the frame, B B the feed-rolls, Dv the knife, and F the deflector. The roll B is mounted in boxes h, mounted in the guides d, which are inclined from the vertical, as described in my pending application, Serial No. 244,406, filed July 16,1887. The roll B is mounted in boxes b', also mounted in the inclined guides a. The roll B is formed with` peripheral grooves b2, and iingers b3 are arranged to work in these grooves. Fingers b3 are conveniently mounted on a cross-bar bt, mounted on the boxes b, `and prevent the leather from passing around on the roll, as it would be very likely to do when thin and wet. The knife D is mounted uponA an inclined bed-piece ce', as in my said pending application, and is adjustable thereon. The deiiector F causes the split to pass over the roll F', which is a roughened roll, preferably so geared as to have a somewhat greater surface speed than the feed-rolls and extending lengthwise of the machine, and is mounted in arms f, preferably pivoted, as shown at f to the frame of the machine. (See Figs. 2 and 4.) Arms f also support the deflector F, and both deilector and roll F are readily swung on pivot f to enable the workman to readilyremove the knife. The boxesb, in which the roll B is `mounted, move in the guides c, and are best mounted on balls b5, mounted in adjustable studs h6, supported by the arms t7, mounted on a spring bs, whichis held between its ends in` a rocker-arm b9, mounted in an arm b1@ of frame A, the rockerarm being adjustable by means of a screw b, working in a slot Z212 in arm b9 to vary the tension of the spring, which, for the best results, should be a square spring, as shown.

Boxes t are formed with inclines bla and supported on springs Z914, which lie between ears 1915 of boxes b and a part of frame A, as in mysaid application. The boxes b are moved against the force of spring 614 to allow roll B to approach the roll B by a slide B2, formed with inclines o16, this slide being conveniently provided with a hand-Wheel B3, mounted in frame A, whereby the slide is readily moved into any desired position.

For convenience in adjusting the rolls in a deiinite relation to each other for splitting leather of a desired thickness, I combine with the rolls and knife a gage G, conveniently formed of a scale g on slide B2 and a pointer g on frame A, or vice versa. The boxes of the roll B are arrested in their movement toward the boxes of roll Bf by set-screws B4,

mounted in frame A and bearing againstv chamfered corners of the boxes b, as in my pending application. Sliding bar B2 is limited in its upward movement by a positive stop, (formed by the cap 1,) and by a set-screw 2, against which gib 3, mounted in cap 4, bears, the bar B2 being held up against the foot of the gib by the tension of springs Z914, pushing box b against the incline Z916 on bar B2. By this construction I am enabled to make very nice adjustment of the roll B in relation to roll B and the knife-that is, if the rolls are not quite parallel or the upper roll is not in proper relation to the edge of the knife, I adjust the roll by turning the set-screw 2, which is a stop for the gib.

The operation of my machine isas follows: The roll B being adjusted in proper relation to the edge of knife D to give a split of the desired thickness, (this position will, whatever it may be, of course, be indicated by gage G,) and the spring bf being so adjusted that its tension will keep roll B in proper relation to the edge of knife D and to roll B ,leather X is inserted between the rolls B B', which feed it to the knife D. The split .r strikes against the deflector F and is directed over the tinted roll F', which strains the split :c away from the waste passing between the knife and roll B, and being rotated, as indicated by the arrow in Fig. 5, increases the draft on the split and enables the knife to cut freer.

In Fig. 8 I show cap l, provided with a boss 5 to receive a gib 6 on the bracket, in which the hand-wheel B3 is mounted. A set-screw 7 is provided as a stop. I intend in a machine provided with this construction to employ a gib and set-screw at the other end of the bar B2, as at the left of Fig. '7. By this arrangement greatnicety of adjustment of the rolls in relation to each other and to the knife may be obtained, as will be clear from what has been said above.

I do not claim herein the contrivance for arresting the boxes of the roll B, as that contrivance is claimed by me in my said application, Serial No. 244,406.

Vhat I claim as my invention isl. In a splitting-machine, the combination of roll B, having peripheral grooves b2, with means for connecting the boxes and arms, substantially as described.

4. The combination of feed-rolls B B and knife D wit-h slide B2 and gage G, slide B2 acting as a stop for the roll B when it moves away from roll B, and the gage G serving t'o indicate the adjustment of the roll B according to the position of the slide B2, all substantially as and for the purpose set forth.

5. In a splitting-machine, the combination of roll B and its boxes b with arms b?, spring bs, means for connecting thearms and boxes, and means for adjusting the tension of spring bs, arms 57 being mount-ed on spring 128, substantially as and for the purpose set forth.

6. In a splitting-machine, the combination of roll B, its boxes b, arms b?, and spring bs, arms 57 being mounted on spring bs, with adL j ustable studs connecting the arms and boxes,

substantially as and for the purpose set forth.

CHARLES S. FIFIELD.

Vitnesses:

EDWARD S. BEACH, JOHN R. SNOW.

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