US368127A - Press for packing bran - Google Patents

Description

(No Model.) 2 sheets-sheen 1.

I C. H. BROWNP..

PRESS POR PACKING BRAN.

No. 368,127. Patented Aug. 9,1887.

l P M i l l l N. PETERS. Phnm-Lwnngmyhur, wnhington. D. C.

(No Model.) 2 Sheets-Sheet 2.

0. H. BROWNE.

PRESS FOR PACKING BEAN.

10.368.121 Patented Aug. 9, 1887.

n PETERS. Pmw-umagmprw. wmv-gwn. D. a

UNITED STATES PATENT OFFICE.

CHARLES H. BROWNE, OF JACKSON, MICHIGAN.

PRESS FOR PACKING BRAN.

SPECIFICATION forming part of Letters Patent No. 368,127, dated August 9, 1887, Application tiled December 17, 1886. Serial No. 221.525. (No model.)

To all whom it may concern.'

Be it known that I, OHARLEs H. BRowNE, of Jackson, in the county of Jackson and State of Michigan, have invented new and useful Improvements in Presses for Packing Bran, &o., `of which the following is a specilication.

My invention relates to a press which is provided with apressing-case into which the bran or other material is forced from a receivingcase by a follower which is actuated by a screw.

The principal objects of this invention are to provide simple means for closing the slots in the receiving-case, in which the arms of the follower move, and to apply the power to the screw-shafts in such manner as to reduce the torsional strain on the shafts to a minimum.

My invention has the further object to improve the construction of various parts of the press for the purpose of rendering the latter durable and efficient in operation.

My invention consists of the improvements which will be hereinafter fully set fort-h, and

pointed ont in the claims.

In the accompanying drawings, consisting of two sheets, Figure l is a side elevation of my improved press. Fig. 2 is a sectional front elevation of the same. Fig. 3 is a top plan view of the press. Fig. 4C is a vertical section through the pressing case and connecting parts, on an enlarged scale. Fig. 5 is a fragmentary horizontal section through the "receiving-case. Fig. 6 is a horizontal section through the pressing-case. Fig. 7 is a side elevation of the truck on which the pressingcase rests. Fig. 8 is a vertical section of the step-bearing at the lower end of one of the actuating-screws. Fig. 9 is a vertical section at right angles to Fig. S, showing the parts separated. Fig. 10 is a vertical section of one of the screw-nuts which are attached to the arms of the follower.

Like letters of reference refer to like parts in the several gures.

A represents the stationary frame of the machine, and B the receiving-case, arranged vertically at the front end of the frame A.

Crepresents the pressingcase, arranged underneath the receiving-case B.

a represents the horizontal drivingshaft, journaled in bearings which are secured to the rear portion of the frame A and provided with a tight and loose pulley, around which run a crossed belt, a, and an open belt, a.

ai* represents a bevel-pinion secured to the inner end of the driving-shaft a.

b represents a vertical shaft jourualed in the main frame A and provided at its upper end with a horizontal bevel-wheel, b', which meshes with the pinion fr.

b2 is a sprocket or chain wheel secured to the shaft b underneath the gear-wheel b.

c c represent the vertical screw-shafts, ar ranged on opposite sides of the receiviugcase B, and provided near their lower ends with horizontal chain or sprocket wheels c c.

cl represents an endless drive-ehain which is driven by the chain-wheel b2, and which passes around the wheels o on the screw-shaft and around a guide-wheel, c3. The latter is journaled in the main frame in front of the wheel bz and carries the drive-chain clear of the pressing-case, as represented in Fig. 3. The drive-chain and the chainwheels are arranged between the top portion, a", and the lower portion, a5, of the main frame A, as represented in Fig. l.

d d represent perforated ears,which are secured to the rear side of the receiving-case B and 'which slide on vertical pins d" d, secured to the mainframe. These ears and pins guide the receivingease in its vertical movements when the receiving-case is raised and lowered by means of the foot-lever D and rod D. The latter engages under the lower ears, d', as represented in Fig. 4. The main portion A is provided in rear of the receiving-case with an upright extension, a, to which the guide-pins d d3 are secured. The upper end of the receiviug-case is provided with across-piece, E, having at its ends bearings c, in which the upper ends of the screw-shafts c are jonrnaled loosely, so that the bearings e can be raised and lowered on the journals of the screw-shaft as the receiving-case B is raised and lowered.

F represents the feed-spout through which the bran or other material to be compressed is delivered into the upper end of the receiving-case B.

f represents the horizontal feed-slide, which is arranged in the feed-spout for opening and closing the same.

f represents a spring which connects one IOO end of the feed-slide with a standard, f2, se-

cured to the cross-piece E, and which tends to hold the feed-slide closed.

f represents a rod attached to the opposite end of the feed-slide and provided with a cord, f, which runs over a guidepul1ey,f5, and hangs in convenient reach of the operator, so that upon pulling on this cord the feed-slide is moved to open the spout, while upon releasing the cord the feed-slide is returned to its former position by the spring. The rod f 3 is provided in its upper side with a notch, f, in which engages a vertical locking-rod,f1, when the slide is opened, thereby locking the slide in an open position. The locking-rodf1 is provided at its upper end with a rearwardlyextending arm,f, which engages in the notch f". By raising the rod fT the feed-slideis released and closed by the spring. The lockingrod rests on the rod f 3 of the feed-slide by gravity, and the arm fB drops into the notch f6 when the feed-slide has been opened sufficiently by the cord f* to cause the notch to register with the arm.

G represents the follower by which the material is compressed and which extends transversely through the receiving-ease B and is provided within the latter with bottom plates, g, which are hinged near their outer ends to the follower, so as to open downwardly. The follower G is provided witha central opening or passage, g', through which extends a crosspiece, g. The latter is connected with the inner ends of the hinged plates q by springs g, which tend to hold these plates closed against the under side of the follower, as represented in Figs. 2 and 4.

g represents the detachable follower-board, which is placed between the material to be pressed and the hinged plates g.

h represents vertical bars or rods, which are secured to the upper cross-piece E and which project downwardly into the receiving-case B in such positions that they will strike against the inner ends of the hinged plates g and swing the latter downwardly as the follower approaches its highest position, thereby opening the passage y through the follower and permitting the material to be pressed to flow from the feed-spout through said passage into the receiviugcase below the follower.

h represents the horizontal opening formed in the front side of the receivingcase B near its upper end for the introduction of the follower-board g.

The follower G is provided with arms i, which project through the sides of the receiving-ease and carry at their ends screw-nuts i',

.in which the screw-shaftsc work. The receiving-ease B is provided in its sides with vertical slots lc, in which the armsz' of the follower move as the follower is raised and lowered in the receiving-case.

k represents ilexible straps,bands, or covers, which are arranged within the receiving-case B opposite the slots k, and which close the latter. These straps are secu red with their lower ends to the inner side of the receiving-case below the slots 7.1, as represented at k'l in Fig. 4. They pass loosely through vertical openingsl in the follower, and are attached with their upper ends to the upper cross-piece, E, by means of springs Z' or other suitable yielding connections, so that the straps will rest closely against the inner sides of the receiving-case and cover the slots 7c in the same, while the follower is free to ascend and descend in the receivingcase.

Z2 represents horizontal pins or projections formed on the arms of the follower and bear ing against the outer sides of the receiving case B near the slots k, thereby supporting the edges of the receiving-case along the slots against the internal pressure, which tends to bulge these edges outwardly. The' straps k are pressed tightly against the inner side of the receiving-case by the pressure which is exerted upon the material by the follower, and prevent the material from escaping through said slots.

m represents bearings in which the lower portions of the screwshafts care journaled, and which are secured to the front ends of the upper portion, a, of the main frame. The bearings m are arranged above the chainwheels c', which are secured to the screwshafts.

o1, represents the stepbearings on which the lower ends of the screw-shafts c rest. Each of these step-bearings is formed on abracket, N, which is secured to the frontside ofthe lower portion, a, of the main frame, and which is provided with a horizontal top plate, n', having an opening through which the screw-shaft passes.

n2 represents a collar which is secured to the screw-shaft between the step and the top plate, n', and which is provided on its upper side with an annular groove, a.

or* is a collar arranged between the collar n and the top plate, u', and provided on its under side with au annular rib, n, which fits into the groo\'e izf. The collar a surrounds the screw-shaft loosely, and is held against turning by sets'crews a", which permit the collar to be leveled or trammed. In com pressing the material below the follower an and this strain is received by the bracket N and the collars a2 audn. The groove of the lower collar, a2, is preferably kept full of oil to insure the easy working of the parts.

It will be observed that the power is applied to the screwshai'ts opposite the pressing-case at the ends of the shafts, toward which the follower is moved in compressing the material, whereby the distance between the follower and the point at which thepower is applied becomes less as the pressure and the resistance of the compressed material increase. By this means the length of the screw-shafts which is exposed to torsional strain becomes gradually upward strain is applied to each screw-shaft, 4

ICOv

less as the pressure increases, thereby preventing excessive torsional strains,wh ich will cause the screw-shafts to bend or break, and which occur in presses in which the follower moves away from the point at whichthe power is applied in compressing the material.

rlhe pressing-case C is composed of a cylinder, o, of wiregauze or other suitable material,'divided at the front, where it is provided with pivoted clampso, by which the upright edges of the cylinder are secured together. The upper and lower edges of the wire-cloth cylinder are secured to bands o2, which are constructed of elastic material, or provided with hinges,so that theeylinder can be opened and closed at desire.

P represents a wheeled truck to which the pressingcase C is secured. The truck is provided with an upright back, p, to which the rear side of the cylinder o is secured by bolts p', and with a bottom, pi, to which the sides of' the cylinder o are secured` by hooks p3. The latter are secured to the sides of the cylinder o and extend upwardly beyond the upper edge of the cylinder o, where'they are formed with inwardlyprojecting hooks p. These lastnamed hooks spring inwardly after the follower-board has passed lbelow the same and lock the follower-board to the pressing-case. The receiving-case is provided in its lower edge with notches p5, as represented in Fig. 4,

in which the hooks p play.

q represents inclined rails upon which the truck P runs toward and from the press. These rails are supported near their highest point upon a cross-piece, q,which is secured to the front of the lower portion, a5, of the main frame.

r represents a vertical bolt which bears against the under side of the pressing-case, and which is attached to the rear end of a lever, R, pivoted to the cross-piece g. The outer end of the lever R is attached to the lower end of the locking-rod f l, by which the feed-slide its held in an open position. rllhe locking-rod is provided with a laterally-projecting scalebeam, r', which is so weighted as to balance the pressing-case when it contains the desired weight of material.

r2 is a foot-lever by which the locking-rod can be raised when desired.

Y S represents a shifting-bar by which the straight belt is shifted. This bar is actuated by a bell-crank, s,which is struck by the follower when the operation of pressing is nearly completed, thereby shifting the straight belt from the tight to the loose pulley and arresting the movement of the follower. S is a similar shifting-bar, by which the crossed belt is shifted. This bar is actuated by a bellcrank, s', and upright bar si. (Shownin dotted lines in Fig. l.) The upright bar is provided at its upper end with a projecting arm, s, which is struck by the follower when the follower has nearly reached its highest position,

thereby shifting the crossed belt from the tight to the loose pulley and arresting` the upward movement of the follower.

Vhen the follower has reached its highest position and its hinged plates have been opened by the depending rods in the upper portion of the receiving-case, the feed-slide is opened by pulling on its cord and is locked in an open position by thelocking-rod. The material now flows from the feed-spout through the follower into the pressing-case and the receiving-case. Then the desired quantity of material has been received, thelocking-rod is raised out of engagement with the feed-slide and the latter is closed by the spring. The scale-beam maybe so weighted that this movement of the lockingrod is effected automatically. The straight belt is now shifted to the tight pulley and the follower is moved downwardly by the screw-shafts. \Vhen the operation of pressing is completed, the downward motion ol' the follower is automatically arrested and the follower-board is locked to the pressing case by the hooks at the top of the latter. The receiving-case is now raised from the pressing-case by the foot-lever, and the pressing-case is removed from under the receiving-case, opened, and the pressed bale or package removed. The follower is now returned to its elevated position, the pressingcase is provided with another sack or lining of suitable materiahand is replaced underneath the receiving-case, when the operation of pressing is repeated.

I claim as my inventionl. The combination, with the receiving-case provided with side openings, of a follower moving with its lateral arms in said side openings, and flexible covers arranged in the receivingcase opposite said side openings, substantially as set forth.

2. The combination, with the receiving-case provided with side openings, of a follower moving with its lateral arms in said side openings, and flexible covers attached to the receiving-case and passing` through openings in the follower, substantially as set forth.

3. The combination, with the receiving and pressing cases and the follower, of the screwshafts whereby the follower is actuated and driving-gear applied to the screw-shafts at their ends toward which the follower moves IOO in compressing the material, substantially as set forth.

4. The combination, with the receiving-case B and the prcssingcase C, of the follower G, screw-shafts c c, engaging with the follower, and driving-wheels c c', secured to the screwshafts near the pressing-case C, substantially as set forth.

5. The combination, with the receiving-case B and the pressing-case C, of the follower G, screw-shafts c c, engaging with the follower, driving-wheels c c', secured to the screw-shafts near the pressing-case, a driving-wheel, b, a

guide-wheel, c, and an endless drive-chain runnlug around said wheels, substantially as set forth.

6. The combination, .with the screw-shaft c, of the supporting-bracket N, provided with a top plate, a, and step n, a collar, n", attached to the bracket N, and a collar, ai, secured to the screw-shaft c below the collar a, substantially as set forth.

7. The combination, with the screw-shaft c, of the supporting-bracket N, provided with a step, n, and a top plate, a', having set-screws n, a collar, n4, attached to the bracket and prov ided on its under side with an annular rib, n, and a collar, a2, secured to the screw-shaft and provided on its upper side with an annular groove, n, substantially as set forth.

8. The combination,with the receiving-case, of a follower, G, having a passage, g', and hinged plates g, whereby said passage can be opened or closed, substantially as set forth.

9. The combinatiomwith the receiving ease, of a follower, G, havingapassage, g', provided with a cross-piece, g2, plates g, hinged to the under side of the follower, and springs g, connecting said hinged plates with the cross-piece g, substantially as set forth.

10. The combination, with the receiving'- case having side openings, of exible covers applied to said openings on the inner side of the receiving-ease, and a follower, G, provided with openings Z, through which said covers pass loosely, and having projections Z2, which bear against the outer sides ofv the receivingcase, substantially as set forth.

11. The colnbination, with the receivingcase, of a follower, G, having a passage, g', plates g, hinged to the follower below said passage, and fixed rods h, whereby the plates r/ are opened as the follower approaches its highest position, substantially as set forth.

12. The combination, with the receivingcase and pressing-case, of the feed-spout, a feed-slide, f, a spring, f', whereby the feedslide is closed, and a locking-rod, f7, whereby the feed-slide is locked open, substantially as Set forth.

13. The combination, with the receivingcase and a vertically-movable pressing-case,of the feedspout F, a feed-slide, f, a spring, f', whereby the feed-slide is closed, anda weighted locking-rod, f7, connected with the pressing-case, whereby the feed-slide is automatically released, substantially as set forth.

14. The combination, with the receivingcase, the follower, and the detachable followerboard, of a pressing-case, C, and flexible hooks p4, attached to the upper end of the pressingcase, whereby the follower-board is locked to the pressing-ease, substantially as set forth.

15. The combination,with thepressing-case, of a receiving-case arranged above the pressing-case, a stationary supporting-frame, vertical guides connecting the receiving-case with the stationary frame, and a foot-lever and rod, whereby the receiving-case can be raised from the pressing-case, substantially as set forth.

16. The combination, with the main frame provided with vertical pins d'Z d, of the pressing-case C, the receiving-case B, provided with ears d ,Z, sliding ou said pins, a foot-lever, l),

and a rod, D', connecting said foot-lever with thereceiving-ease, substautiall y as set forth.

fitness my hand this 26th day of November, 1886.

CHARLES H. BROW'NE.

fitnessesz ELI A. CLEMENT, J. W. BENNETT.

Images