US921011A - Press. - Google Patents

Description

H. W. SHEPARD.-

PRESS. APPLICATION Hum NOV. 14,1908.

' Patented May 11,1909.

3 SHEETSSHEET 1.

3 SHEETS-SHEET 2.

\ Patented May 11,1909.

11. W. SHEPARD.

' attoznuao wit" use:

rm; NQRRI PETERS cm, WASHINGTON, u. c.

H. W. SHEPARD.

PRESS. APBLIGATION FILED NOV. 14, 1908.-

' 'Patented May 11,1909.

3 SHEETS- SHEET 3.

tion. Fig. 7 is a section on the line A-B of 1 marrnn snares rnirnrrr canton HERBERT W. SHEPARD, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, OF FIFTY- ONE ONE-HUNDREDTHS TO'JAOOB B. BAERMANN AND HENRY A. LLOYD, OF NEW YORK, N. Y., AND M. VAN V. LLOYD, OF CLEVELAND, OHIO.

PRESS;

Patented Ma 1 1, 1909.

Application filed Novernber 14, 1908. Serial No. 462,659.

and State of New York, have invented a new. and useful Press, of which the following is a specification.

This invention has reference to improvements in presses and is designed more particularly for the expressing of fluid from corn mash or hops, or grains in breweries, or pomace, in wineries, or liquids from wood pulp or cocoanut or seeds of various kinds, or other oil or liquid bearing and containing substances. 1

In accordance with the present inyention there is provided a pump capable of handling the liquid containing substances and constituting the driving unit for forcing such substances into the expressing end of the press so that the liquids are extracted and the dry materials are discharged at the end of the press remote from the pump, the operation being continuous.

In accordance with the present invention the pump is designed more particularly for handling materials of the kinds stated without clogging and to operate successfully with a minimum number of parts avoiding the use of springs, or cams, or other such mechanical expedients tending to complicate the structure. The expressing end of the device is also designed on simple lines and is so arranged as to be readily 0 ened for cleaning and at the same time the liquids are allowed toescape freely without danger of the solid matter following. Furthermore the invention contemplates a simple means forregulating the pressure applied to the material from which the liquid is to be expressed.

The invention will be best understood. from a consideration of the following detail description taken in connection with the accompanying drawings forming a part of'this specification, in which drawings, Figure 1 is a plan view of the press complete. Fig. 2 is a side elevation of the same. Fig. 3 is across section through the expressing end of the press on a larger scale than shown in Figs. 1 and 2. Fig. 4 is'a perspective view of the innerscreen in part. Fig. 5 is a plan view with parts in section of the pump used in connection with the press, Fig. 6 is an end elevation of the pump with the drive shaft in sec- Fig. 5. Fig. 8 is a perspective view of the pump vanes in relative position but removed from the pump rotor shaft or carrier, and Fig. 9 is a detail perspective viewof one of the vanesof the pump.

Referring to the drawings, there is shown a l ump 1, the details of which are shown in *igs. 5 to 9 both inclusive, and which will be referred to later in this description. The pump is a rotary power driven pump designed to handle materials of the character already mentioned without clogging and with great economy ofoperation.

Extending through the pum 1 is a shaft having journals in pedestas 3 beyond which the, shaft extends and there carries gear wheels 4 one at each end of the shaft.

Upon the base 5 of the press are erected other pedestals 6 carrying journal bearings for another shaft '7 which latter has pinions 8 near each end meshing with the gear wheels 4 and also carries gear wheels 9 in mesh with pinions 10 on a drive shaft ll mounted in other pedestals 12 erected on the bases. The shaft 11 is provided with a pulley 1:3 by means of which power may be applied to the shaft 11 from any source of power. The train of gearing so far described constitutes a reducing gear by means of which the pump may be driven at a comparatively slow speed from a high speed prime mover. It will be understood of course that a direct connected electric motor may be used in place of a pulley driven device such as shown in the drawings.

The pump 1 receives material through a pipe or conduit 14 and discharges into the expressing end of the press through a conduit 15. v

The expressing or liquid extracting end of the press is composed of a circular series of spaced staves 16, the arrangement of which is best seen 111 Fig. 3. These staves are preferably metal staves secured together in spaced relation in any suitable manner such as is common in presses of this character.

The series of staves 16 are encircled near their ends by split rings 17 to which the series of staves are secured by bolts 18 or otherwise. The meeting ends at one side ofeach split ring 17 are coupled together by a hinge joint'19 while at the other side the meeting ends are formed into ears 20 coupled together by a bolt 21 and the cylindrical series of staves are. so joined that on the removal of the bolt 21 the rings 17 may b spread open about the hinge 19 and the staves will participate in this movement in two halves so that the interior of the expressing end of the press may be opened up for inspection or cleaning, or repair.

The circular series of staves 16 extend between two pedestals 22 and 23. Extending between the pedestals 22 and 23 near one side thereof is a bar or red 24 and near the other side between these two pedestals are two spaced rods or bars 25 and 26. These bars 25 and 26 are not secured to the pedestals but at their ends engage against lugs 27 and these bars are held together by spaced pairs of bolts 28 and thereby clamped against the lugs 27.

Mounted hingedly upon the rod 24 are two semicircular clamp members 29-30, there being a number of these clamp members along the bar 24 in accordance with the length of the expressing end of the press and the internal ressure which the press is designed to wit stand. The member 29 of the clamp over-rides the circular series of staves 16 and the member 30 under-rides the same and the ends of the members 29 and 30 remote from the hinge rod 24 are formed into lips 31 designed to be engaged by the bars 25 and 26 and so held in clamped relation about the circular series of staves 16, the said bars 25 and 26 being upheld and in turn suporting the clamp members 29 and 30 by the ugs 27 formed on the pedestals 22 and 23.

On removing the bolts 28 the bars 25 and 26 may be removed from engagement with the lips 31 and the clamp members 29 and 30 may then be opened out around the pivot rod 24 so that the circular series of staves 16 may be removed bodily, or on the removal of the bolts 21 from the corresponding ends of the split rings 17 the circular series of staves 16 may be opened about the hinge 19 for inspection, or cleaning, or repair as before stated.

Interior to the series of staves 17 is a cylindrical screen or sieve 32 made up of two members 33 and 34 of sheet metal having through perforations of diii erent sizes, the member 33 being interior to the member 34 and having the smaller size perforations. This is best shown in Fig. 4. The cylindrical screen 32 is made in two halves separating longitudinally and each member 33 and 34 of each half is formed along one edge with a li' 35 spaced away from the corresponding edge of the other member so as to form a longitudinal socket or receptacle for the corresponding edge of the other half, the edges thus inter-locking and preventing the escape at this point of any solid matter while at the same time permitting the ready separation of the two members of the cylindrical screen. The screen member 32 is unperforated or solid for a few inches at each end as indicated at 36 in Fig. 4 where one end only is shown. These unperl'orated ends may enter the pcdestals 22 and 23 which pedestals, of course, have openings through them for the passage of material as is common in presses of this character.

Extending longitudinally through. the expressing portion of the press interior to and concentric with the circular series of slaves 16 is a shaft 37 which may enter the pedestal 2S and be held concentric therewith by means of a series oi spider arms 33 and these spider arms 33 may bear upon the unpertorated portion 36 of the screen 32 when such unperi'orated. portion extends into the pedestal 23. The other end of the shaft 37 extends through and beyond the pedestal 22 and is mounted at the end in still another pedestal 39 through which the slial't 37 may slide.

The opening through the pedestal 27 flares in a direction toward the pedestal 39 and is entered by a conical plug -10 on the shaft 37. Adjacent to the plug 40 the shall 37 is screw-threaded and receives a nut --ll between which nut and the pedestal 2-39 the shalt 37 is surrounded by a helical spring -12, the tension of which may be regulated by the said nut 41. The spring 42 tends to force the plug 40 into the conical opening through the pedestal 22 and material passing through the press engages the plug ll) and moves the same in a direction against the action of the spring 42 in the eli'ort ol' the. material to escape through the opening in the pedestal 22, such opening constituting the escape throat for the material from which the liquid has been expressed, the pressure upon the nntterial depending upon the resistance of the spring 42, the said spring tending to force the plug into the escape throat of the press and c )rrespondingly throttle the same.

When the press is in operation material enters the pump through the conduit H- and the pump constantly and regularly forces the material coming through the conduit 14 into the interior oi the screen 32 through the corresponding unperiorated end 36. The material is prevented from packing in the center of the press by the shalt 37 and is kept thereby in engagement with. the interior of the screen 32. The material is ultimately forced to the other end of the press and then meeting the plug 40 is prevented from passing out of the press until the escape threat is enlarged by the contraction ol' the spring 42 which will yield when. sullicicnt pressure is applied and this pressure may be determined by the adjustment of the nut 41 thus regulating the working tension of the spring 42.

The pressure necessary to overcome the spring 42 is transmitted through the mass of material in the interior of the circular series tical interior of the pump.

through the perforated screen .32 and fromv thence out through the spacesbetween the staves 1.6 and ultimately into a suitable receptacle which however is not shown. in the drawings. The dried massultimately escapes throughthethroat of the press about the plug 40 and may there bedeposited in a suitable receptacle or upon a conveyer to be carried to another point of deposit. These features being common in presses of this character and forming no part of the present invention have been omitted from the drawings.

The pump shown in Figs. 5 to 9 both inclusive is particularly adapted for use in connec tion with a press such as has been described hereinbefore. This pump is particularly designed to feed materials containing liquid which it is desirable to express from said materials, the said pump performing its operations without clogging and equally well whether the liquids predominate in the materials or whether the materials be quite dry in appearance as for instance in the case of seeds from which oil is to be expressed.

The body of the by means of suitable heads 43 carrying journalbearings 44 for the shaft 2. Since the interior of the pump is subjected to back pressure commensurate with the pressure developed in the expressing end of the pum packingglands 45 are provided and are eld to the journals by suitable heavy screws 46 so that the packing may be suitably compressed to be resistant to the internal pressure in the um P V\ ithin the shell of the pump 1 between the heads 43 the shaft 2 is enlarged into a cylindrical hub 46 and the shaft and hub are disposed eecentrically to the principal axes of the ellipticalshell of the pump, the hub 46 being inset slightly into one wall of the chip tical interior of the shell of the pump as best shown in Fig. 7. The pump isprovided at one side with an inlet port 47 connected to the conduit 14 and this port merges into the interior of the ump on the side thereof occupied by the hub 46 while a relief off-set 48 of the port 47 leads into the crown of the ellip- The interior of the pumpis provided with an exit port 49v at the base of the elliptical interior of the shell at a point remote from the inlet port 47.

area thus permitting a free inflow of the material into the pump by gravity or low forced pressure while theoutfiow from the-pump is pum 1 is in general form that ofv an elliptical shel closed at the ends under the pressure generated by the pump against the accumulated pressure in the ex 1 pressing end of the ress.

- In the structure s own in the drawings the hub 46 is traversed by two longitudinal slots 50 intersecting each other at the axis of the shaft at right angles one to the other. These slots receive the pump vanes 51, one of which is shown in Fig. 9. Each pump vane 51 is composed of a blade 52 of a thickness and length to fit snugly yet easily within the corresponding slot 50 and these vanes and slots are coextensive in length with the length of the shell of the pump 1, the heads 43 being countersunk sufliciently to receive the ends of the hub 46 beyond the ends of the slots so that the ends of the vanes may engage the inner walls of the heads 43 and thus prevent leakage at this point. The outer edges of the vanes may be slightly rounded to engage the inner walls of the pump shell. Each blade52 on the side remote from the edge designed to engage the inner walls of the pump shell is formed with two legs 53 spaced one from the other, one leg being at the extreme end. of the blade and the other leg being spaced therefrom and also from the corresponding other end of the blade.

The legs 53 are but half the thickness of the blade 52 so that when two blades are introduced into a slot 50 from opposite sides thereof the legs, will over-lap in close relation one to the other. Each leg 53 near its junction with the blade 52 is flanked by a strengthening rib 54 increasing in thickness from the thickness of the leg to that of the blade as it ap roaches the blade, and the body of each b ade 52 where joined by a leg 53 is recessed as shown at 55 for the reception of the free end of the leg of the matching.

blade. In operation the blades are arranged in pairs in each slot 50 and each blade is designed to move into and out of the slot, the ribs 54 permitting a comparatively narrow blade with a support provided by said ribs entering well into the hub 46 even when the blade is projected to its full operative extent.

W henthe blades are introduced into the hub 46 in the intersecting slots 50 the legs 53 of one blade extend between the legs of the other blade and the space between the more central leg and the end of the blade remote from the leg located at the other end of the blade. In this manner the two sets of blades in the two intersectin slots 50 may move into and out of the hub along the slots without interference.

When the blades 51 are mounted. in the hub 46 and the structure is housed within It will be noted that the inlet port 47 ap proaches in width thelength of the shell of. the pump 1 while the exit port 49 is of less the casing of the pump and power is applied to the shaft 2, the ends of the blades 51 will remain in contact with the inner walls of the casing of the pump through substantially the entire active movement of said blades while the free end of the legs 53 of one blade of a pair remain seated in the recesses 55 of the other blade, the two members of a pair of blades having practically no relative movement one on the other.

By forming the blades of two interlocking members one arranged to traverse the other all cam, springs, and other mechanical expedients for maintaining the ends of the lades in engagement with the inner walls of the pump casing are obviated, while the blades have ample bearing in the hub 46 to withstand the side strain to which they are subjected in active operation.

The exit and entrance ports of the pump are shown in Fig. 7 as on the same side of the pump but at right angles one to the other but it will be understood that these ports may be otherwise arranged as conditions may necessitate. And also the entrance and exit ports may be of the same size if desired.

What is claimed is 1. In a press, an elongated. cylindrical member having its walls provided with means for the escape of liquid, means for supplying ma terial under operative pressure to the feed end of the expressing chamber, a longitudinally movable smooth shaft extending through the longitudinal axis of the expressing chamber and forming the latter into an annular chamber unobstructed throughout its length, and a throttling means for the discharge end of the chamber carried by and movable with the shaft.

2. In a press, an elongated cylindrical member having its walls provided with means for escape of liquid, means for supplying material under operative pressure to the feed end of the expressing chamber, a longitudinally movable smooth shaft extending through the longitudinal axis of the expressing chamber and forming the latter into an annular chamber unobstructed throughout its length, and a throttling means for the discharge end of the chamber comprising a conical block carried by the shaft and movable therewith and entering the discharge end of the said chamber.

3. In a press, an elongated. cylindrical member having its walls provided with means for the escape of liquid, means for supplying material under operative pressure to the feed end of the expressing chamber, a longitudinally movable smooth shaft extending through the longitudinal axis of the expressing chamber and forming the latter into an annular chamber unobstructed throughout its length, and a block carried by and movable with the shaft and adjustable longitudinally thereon and entering the discharge end of the expressing chamber, and a spring surrounding the shaft and engaging the block and resistant to the longitudinal movement of the shaft in a direction to carry the block away from the expressing chamber.

4. In a press, an elongated cylindrical member having its walls provided with means for the escape of liquid, means for supplying material under pressure to the feed end. of the expressing chamber and a smooth shaft extending through the expressing chamber axially and forming the latter into an annular chamber unobstructed throughout.

5. In a press, an elongated expressing member having its walls formed of spaced staves or slats in cylindrical series, a perforated screen or sieve lining the interior of said series of staves or slats and having the ends unperforated, a central longitudinal shaft in said expressing chamber and having one end supported by the corresponding unperforated end of the screen, a throttling plug on the shaft near the other end thereof in operative relation to the corresponding end of the expressing chamber, and means for feeding the material to be treated under pressure at the end of the expressing chamber remote from the throttling plug.

6. In a press, an elongatedexpressing member having its walls formed of spaced staves or slats in cylindrical series, a perforated screen or sieve lining the interior of said series of staves or slats and having the ends unperforated, a central longitudinal shaft in said expressing chamber and having one end supported by the corresponding unperforated end of the screen, a throttling plug on the shaft near the other end thereof in operative relation to the corresponding end of the expressing chamber, means for feeding the material to be treated under pressure at the end of the expressing chamber remote from the throttling plug, and yielding means acting on the shaft in opposition to the feeding pressure on the material.

7. In a press, an elongated expressing member having its walls formed of spaced staves or slats in cylindricalseries, a perforated screen or sieve lining the interior of said series of staves or slats and having the ends unperforated, a central longitudinal shaft in said expressing chamber and havii'ig one end supported by the corresponding un perforated end of the screen, a throttling plug on the shaft near the other end thereof and in operative relation to the corresponding end of the expressing chamber, means for feeding the material to be treated under pressure at the end of the expressing chamber remote from the throttling plug, and adjustable yielding means acting on the shaft in opposition to the feeding pressure on the material.

8. In a press, an elongated expressing member having its walls formed of spaced staves or slats in cylindrical series, a perforated screen or sieve lining the interior of said series of staves or slats and having the ends unperforated, a central longitudinal shaft in said expressing chamber and having one end supported by the corresponding unperforated end of the screen, a throttling plug on the shaft near the other end thereof in operative relation to the corresponding end of the expressing chamber, means for feeding the material to be treated under pressure at the end of the expressing chamber remote from the throttling plug, aspring on said shaft tending to force theplug toward the expressing chamber, and means for adjusting the tension of said spring.

9. In a press, a pump for supplying material to the expressing chamber, said pump having a rotary member with intersecting slots, and vanes seated in said slots and also intersecting and of constant length, each vane comprising two vane members each their point of junction with the vane mem-' her.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

HERBERT W. SHEPARD.

Witnesses:

J. Ross CoLHoUN, ADAH M. RosE.

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