US619477A - Leather splitting machine - Google Patents

Description

- Patented Feb. l4, I899. J. HALL. LEATHER SPLITTING MACHINE.

(Application Med Oct. 4, 1898.

6 Sheets-Sheet I.

(No Model.)

m: mamas PETERS co. PHOYD-LITNO. wAswNOTch No. 6l9,477. Patented Feb. I4, I899.

J. HALL.

LEATHER SPLITTING MACHINE.

(Application filed Oct. 4, 1898.: (No Model.) 6 Sheets-Sheet 2.

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No. 6!9,477. Patented Feb. I4, I899. J. HALL.

LEATHER SPLITTING MACHINE.

(Application 'filed Oct. 4. 1898.

6 Sheets-Sheet 3.

(No Madel.)

Tn: NORRIS 957818 :0. FHGTGLITHO" WASHINGTUN, n. c.

No. 6l9,477. Patented Feb. l4, I899.

. J. HALL.

LEATHER SPLITTING MACHINE.

(Application filed Oct. 4, 1898.)

6 Sheeis--Sheet 4.

(N0 Mddel.)

No. 6I9,477. Patented Feb. 14, I899.

J. HALL. LEATHER SPLITTING MACHINE.

(Application filed Oct. 4, 1898.!

8 Sheets-Sheet 5.

(No Model.)

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Patented Feb. 14,1899.

No. 6l9,477.

.1. HALL, LEATHER SPLITTING MACHINE.

(Application filed Oct. 4, 189B.)

6 Sheets-Sheet 6.

(No Model.)

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UNITED STATES" PATENT @FFTQE.

JOSEPH HALL, OF LEEDS, ENGLAND.

LEATHER-SPLITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 619,477, dated February 14, 1899.

Application filed October 4, 1898.

To all whom it may concern:

Be it known that I, JOSEPH HALL, a subject of the Queen of Great Britain, residing at Leeds, in the county of York, England, have invented certain new and useful Improvements in Machines for Splitting Hides, Skins,

Leather, and the Like, of which the following is a specification. My invention has relation to machines adapted to split hides, skins, or leather, or for analogous purposes, and in such connection it relates particularly to the construction and arrangement of such a machine.

The nature and object of my invention will be fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, and in which- Figure l is a front elevational view of a belt-knife leather-splitting machine embodying main features of my invention. Fig. 2 is a top or plan view of Fig. 1. Fig. 3 is an elevational view, enlarged, of the power end of the machine. Fig. 4 is a View similar to Fig. 3, but of the Opposite end of the machine. Fig. 5 is an enlarged vertical sectional view of the machine. Figs. 6 and 7 are still further enlarged sectional views illustrating, in detail the construction and arrangement of the sectional roll and adjacent table. Figs. 8 and 9 are enlarged sectional views of the gage or tension roller and of the means for v adjusting the same. Fig. 10 is a longitudinal sectional view of the gage or tension roller and its bearings. Fig. 11 is a longitudinal sectional View of the rear india-rubber nipping or drawing rolls. Fig. 12 is a longitudinal sectional view of the sectional roll and its bearings or supporting-brackets. Fig. 13 is a longitudinal sectional view of the front india-rubber roll upon which the sectional roll bears and also illustrating the levers for raising or lowering said india-rubber roll and the means supporting the same. Fig. 14 is an enlarged top or plan view'of a hinged table and the means for attaching the same to the brackets or bearings of the sectional roll. Fig. 15 is a vertical'sectional view of Fig. 14. Figs. 16 and 17 are respectively end and side elevational views, enlarged, of the bracket or bearing carrying the sectional roll and part of the hinged table adjacent thereto. Fig.

Serial No. 692,612. (No model.)

18 is a vertical sectional view, enlarged, of the belt-knife and guides. Fig. 19 is a top or plan view, enlarged, of the plate for adj usting the belt-knife in its guides. Fig. 20 is a top orplan view of an endless scraper or brush for cleaning the gage or tension roll, and Figs. 21 and 22 are side elevational views illustrating in detail a modified form of con necting the table with the sectional roll.

Referring now to the drawings, a represents the bed of the machine supported upon feet a a and constituting, with the end uprights or standards a the frame of the machine, in which are located the bearings for the necessary shafts, rolls, and rollers. The main driving-shaft a has its bearings in the bed a, and power is conveyed to said shaft through pulley a In adjustable bearings a in the bed a are located the shafts F9 for the belt-knife pulleys bl), arranged at right angles to shaft a and to which motion is conveyed from said shaft a by the miter-gears 19 12 in the usual manner. The belt-knife b is guided and supported between the plate 11 and a cover-plate b which may be adjusted backward and forward and also up and down in the usual well-known manner. The beltknife 6 is guided between plates b which serve to clean the knife of refuse and are carried by the plates 19 and b and it is kept up to its work, preferably as illustrated in Figs. 18 and 19, by means of a plate 19 which may be advanced or retracted between plates b and b by means of set-screws b or their equivalents. The gage or tension roller 0 is carried in adjustable bearings c c' in a crossframe or head 0 which is pivoted, as at c a to the end uprights a a As illustrated in detail at Figs. 5, 8, and 9, this roller 0 rotates below friction-rolls 0 which rolls 0 are ad justable in the cross-frame 0 The roller 0 may be supported either as illustrated in Figs. 8 and 9 by fixed clips 0 or else as illustrated in Fig. 5 by a clip 0 and a movable plate 0 carried by a shaft 0 provided with hand-1evers 0 These levers 0 work in quadrants 0 and when operated in one direction they turn the shaft 0 and plate 0 to either release the roller 0 from clip 0 or to permit of access to said roller 0 to cleanse the same.

The cross-frame or head 0 as before described, oscillates upon the pivots c and carries with it the tension or gage roller 0. To balance the head 0 and regulate the pressure of roller 0, counterweights o are attached to the head 0 beyond the fulcrum 0 The roller 0 is located directly above the knife I), and below this knife is located the sectional roll (I, which is supported upon and receives motion from the two rolls 6 and f, both of which are covered with india-rubber or similar material. The roll 8, as illustrated in Figs. 1 and 13, is carried by twolevers e e, pivoted, as at e to the end uprights a and is adapted to be elevated or depressed by said levers e e when said levers e are actuated by eccentrics on a shaft 6 which shaft is operated by a hand-lever 6 The shaft of roll 6 is guided in slots in the end frames a to permit of this up-and-down adjustment. The roll f is carried by the bearings f f, sliding in the end uprights a and supported by adjustable springs f or their equivalents.

In machines of the type to which my invention appertains it is necessary in the proper feeding of the leather to the knife that the leather be supported upon a yielding sectional roll, so that forinequalitiesin the thickness of the leather a certain adjustment of the sectional roll is afforded to thus permit the upper section of leather to be split off in a layer of uniform thickness.

Referring to Figs. 6, 7, and 12, the sections of the sectional roll cl are carried upon a square shaft cl, which is fixed in brackets or On the shaft d, which does not rotate, are the collars bearings 61 in the end uprights a or runners (1 which are slotted to permit of movement in one plane upon the shaft d.

The sections of the sectional roll d are fitted over the collars or runners d in such a manner that they are free to rotate upon said collars d, but are fixed to said collars so not to have any longitudinal play thereon. One way of securing this connection between the collars and sections is shown in the drawings, and it consists in providing the collars with set-screws d engaging grooves in the interior of the sections. It will be understood that the sections follow the movement of the collars 01 upon the square shaft d, and inas- 1 much as the brackets d of said shaft maybe arranged so that they can be turned to varying angles, as illustrated in Figs. 14, 16, and

17, the sections of the section-roll d will be constrained to ride with the collars d upon part g being hinged to the rear part and car ried directly by flanges 9 These flanges g In Figs. 1

i are integral with or properly secured to brackets d which support the shaft of roll cl. In this form of table the front portion g moves with the shaft of roll (I and corresponds, therefore, with the alterations of position of said roll. Another form of table is illustrated in Figs. 21 and 22, which differs from the form shown in Figs. 14 and 15 in the means for securing the table to the brackets d of the sectional roller. In this form the forward end of the table is secured to a strap 9 which is clamped onto the brackets d at either end of the machine. WVhen the table is moved up or down, the brackets 01 are moved correspondingly and the shaft d is moved to a corresponding angle. The forward end of the table may be adj usted with respect to the face of the shaft d by means of the set-screws g The roll e is supported upon a roll h, located below the roll e and having arms h connecting the roll with a shaft M. The shaft 71 may be turned to elevate or lower the roll it by means of a hand-lever h.

Below the sectional. roll 61 is arranged a scraper 70, carried by two weighted levers k is, pivoted in the uprights a so that the scraper 76 is always held up to the roll (I and moves up or down with it when the roll dis adjusted. In place of this scraper an endless chain 76*, carrying brushes it as illustrated in Fig. 20, may be used to scrape the sectional roll (I.

The oscillating head or cross-frame o is regulated in its movement toward the stationary frame of the machine by means of an adjustable screw Z, as illustrated in Fig. 5. The head or cross-frame is preferably elevated away from the stationary frame in the following manner: pivoted, as at Z in the stationary frame of the machine is a foot-lever or treadle Z, adapted to elevate and depress the vertically-arranged rods Z which are adapted to bear against adjustable screws Z in the head 0 Onthe rods Z are fixed collars which when the rods Z are elevated are adapted to raise a counterweighted angle-lever Z having a hook 1 adapted, when the lever Z is raised, to swing off of a pin or projection i on the head or frame 0 When the head 0 descends, which takes place upon the release of the treadle Z, the weighted angle-lever Z swings down until its hook Z engages the pin Z and thus locks the oscillating frame a to the stationary frame of the machine. When the treadle l is depressed, the hook Z is first released by the movement of the rods Z and thereafter the further movement of said rods Z will elevate the oscillating head away from the stationary frame. When this is done, the gage-roller c is lifted sufficiently above the knife I) and sectional roll cl to permit the operator to insert the work in its proper position between the rollers c and (Z and against the cutting edge of the knife I). Since the head 0 oscillates upouthe uprights a. and carries with it the roller 0, which preferably should be driven by the same shaft a which drives the roller 6 which rotates in the .fixed framework, the arrangement shown in Figs. 1, 2, 3, and 4 has been devised.

Motion is given to the main shaft a from pulley a On shaft d is secured a pinion m, gearing with a wheel m on an intermediate shaft m On shaft m are two pinions m and m gearing, respectively, with the wheels m and m on a shaft m which runs right across the machine. Between the two pinions m and m is arranged a sliding clutch n, adapted to be operated by a hand-lever n in such a manner that either pinion at will may be driven or both may be stopped. At each end of the shaft m is a pinion p, gearing with wheels 19', fixed to the shaft of roll e, and the wheels p drive wheels p fixed to the shaft of the roll f, through idle-wheels p rotating on suitable studs of the uprights a On each end of shaft m is also located a pinion 1, which gears with an idle-wheel r, rotating on the fulcrum or pivotal support a of the oscillating head 0 The idle-wheels r mesh with idle-wheels r rotating in suitable studs in the head 0 and the idle-wheels 7' drive wheels r secured to the shaft of roller 0. The sectional roll, as before explained, receives its motion from the roll 6, onwhich it rests.

In the operation of the machine the unsplit leather is laid upon the table 9 and is fed against the knife b and split. When split, the upper portion of the leather is directed above the knife and over the roller t,whereas the lower portion passes below the knife and over the roll f to the base of the machine in the usual well-known manner.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine of the character described, a sectional roll consisting of a square or oblong shaft, a series of runners or collars provided with slots to permit of movement on said shaft in one plane, and a series of sections adapted to move in said plane with said collars and to turn upon the runners 01' collars but having no longitudinal movement thereon, substantially as and for the purposes described.

2. In a machine of the character described, a sectional roller consisting of a square or oblong shaft, a series of runners or collars in slotted engagement with said shaft and free to move thereon in only one plane, a series of sections moving with said collars or runners in said plane and adapted to rotate thereon but fixed against longitudinal movement on said collars or runners, brackets supporting the shaft and means for turning said brackets to turn the shaft into varying angular positions, substantially as and for the purposes described.

3. In a machine of the character described, a gage or tension roller, an adjustable sectional roll having a non-rotatable shaft and located adjacent to the gage-roller, a feeding table having one edge adjacent to the sectional roll, supporting-brackets for said sectional-roll shaft and to which the edge of the table is secured, and means for moving the table, brackets and shaft to correspond in movement to the adjustment of the sectional roll, substantially as and for the purposes described.

4. In a machine of the character described, a sectional roll and a feeding-table located adjacent thereto, said table being arranged in two sections hinged together, and one of said sections being secured to and carried by the supports for the sectional roll and movable therewith, substantially as and for the purposes described.

5. In a machine of the character described, a fixed frame, a sectional roll rotating therein, a splitting-knife adjacent to said roll, an oscillating head pivoted to the fixed frame, a tension or gage roller carried by said head and means for elevating and depressing said head to bring the tension or gage roller away from or toward the sectional roll and knife, substantially as and for the purposes described.

6. In a machine of the character described, a fixed frame, a sectional roll rotating therein, a splitting-knife adjacent to said roll, an oscillating head pivoted to the fixed frame, a tension or gage roller carried by said head, means for elevating and depressing said head to bring the tension or gage roller away from or toward the sectional roll and knife, and means for locking the head to the fixed frame when said head is depressed, substantially as and for the purposes described.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

JOSEPH HALL.

lVitnesses:

ANNA HERNS, ETHEL HALL Dyson.

IOO

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