US1672659A

US1672659A - Straining press

Info

Publication number: US1672659A
Application number: US105537A
Authority: US
Inventors: Sohler Karl
Original assignee: Fried Krupp Grusonwerk AG
Current assignee: Fried Krupp Grusonwerk AG
Priority date: 1925-05-07
Filing date: 1926-04-29
Publication date: 1928-06-05
Anticipated expiration: 1945-06-05
Also published as: DE447700C; FR613764A; BE332024A; GB252005A

Description

June 5, 1928. 1,672,659

K. SOHLER STRAINING PRESS Filed April 29, 1926 4 Sheets-Sheet 1 t Fig. 1

June 5, 1928. "1,672,659

K. SOHLER STRAINING PRESS Filed-April 29. 1926 4 Sheets-Sheet June 5, 1928 K. SOHLER STRAINING PRESS Filed April 29, 1926 4 Shgets-Sheet 5 WSW June 5, 1928. 1,672,659

K. SOHLER STRAINING' PRESS Filed April 29, 1926 4 Sheets-Sheet 4 17 is 15 a I Fig. 4

- out deviating from discharged liquid.

Patented June 5, 1928.

UNITED S ES H 1,672,659 PAT NT FIC KARL sonrna, or ama, NEAR .MAGDEBURG, GERMANY, AssIenon T0 ramp.

Kmirr GRUSQNWERK AKTIENGESELLSGHAFT, or MAGDEBURG, GERMANY.

s'rnarnme .ranss.

Application filed April 29,- 1926; Serial No.,105,537,"a1id it Germa y m 7, 1925.

My invention relates to improvements in straining presses for extracting liquids from moist substances of various kinds and more particularly to presses of the type having a press chamber of annular cross section through. which the material is passed, said chamber being mainly composed of two cylinders, one of the latter or preferably both "being perforated and the moist substances being continuously fed'and squeezed through the space between said perforated cylinders.

The object of my invention is to provide a press of this character which is very simple in its construction. containing no complicated parts as worms safety couplings gear wheels and the like, and which can be manufactured, sold and .maintained its place by means of a ring 11 surroundlng at comparatively low cost. V

. Another object of my invention is to thus design the feeding and discharging mechanism that the pressing action and the amount of material under treatment. will be kept automatically practically constant duringthe whole operation of the press.

With'these and other..objects in view I have invented a straining press for continuous operation the essential features of which forms of my invention are illustrated by way of examples.

Fig. 1 is a vertical sectional view'of the pr Figs. 2, 3, a

nd 4 are. similar sectional views showing three modified forms of the feeding and actuating mechanism.

Like members of reference indicate 'similar parts in all the three modified embodiments of my invention.

Referring to Fig. 1 or the drawings the annular press chamber 1 comprises

twowalls

2, 3 which are in their preferred form cylindricalybutwhich. can be made conical or in part conical andin part cylindrical; withthe essence of my invention,

"Said

members

2,3 in their preferred cylindrical form are both provided with perforations 4', representing outlets for the dis- The material to be treated is continuously supplied through the hopper 5 and is fed and squeezed into .the press through its intake 6 by means of a thumb 8 carried by a nave member 16 spindlefl7.

by the thumb 8 upon the material is concentrated' to a rather limited. section of the whole'annular intake area6 of the press chamber, and thus the feeding and pressing and mounted" on the rotary i r I 560 noted that the" pressure exerted action 'is' of a strictly one-sided or eccenf its bottom edge and. allowing of a rotary tiltingxmotion 'of the cylinder'j2 as indicated 8 in such manner that, the cylinder 2 will tilt towards the respective position of the thumb 8; i. e. the. left when'the thumb 8" passes along left side of the cylinder, 2 as indicated in Fig. 1' in bold lines.

It will'be noted that at the opposite (right) side the annular space 6 will be then contracted in turn'accordingly, whereby the material under treatment is highly'squeezed in radial direction and is compressed and condensed in such manner that va substantially increased pressure occurs also in the axial direction through the whole press.

Owing to said combined radial and axial pressing effects the output of the liquid extracted from the material isconsiderably higher when compared with the results obtainable heretofore.

The extractedliquid is discharged. through the

outlet ports

17, 18*, while the material after treatment is discharged at the .dis-

charge" port 13 of the press chamber preferably. by means of knives or scrapers 12,

mounted on a rotary carrier 14.

Y I prefer to mount the scrapers 12 so as to atively to the press chamber and so as to project to a larger or smaller extent into the discharge port 13.

7 In the embodiment of my invention shown i be capable of being lifted or lowered relin the drawings the. controlling mechanism for the scrapers 12 consists of a lever 15, engaging the carrier 14, the latter being slidably mounted on the shaft 7.

Figs. 2 and 3 show straining presses ac-- cording to this invention but of modified constructioi'i in which the inner straining member 3-is tiltably mounted upon its-carrier and is postively actuated to its rotary tilting motion. y

The means for imparting. apositive tilting motionto the inner straining member, 3 comprises a rotating eccentric 1-7 engaging the hub 9 of the straining member? within: the rigidly mounted bearing '18. Said tilting motion of the shaft is trans-- mitted in turn to the inner straining cylinder 8. In all other respects the construction and! the WOIlTlIlgCOlldltlOIlS of this modified press. are identical to-that outlined in. connection with Fig. 1'. I

Many structural: changes and modifications will offer themselves to those skilled' in theart in carrying my invention. into practice. Thus e. g; the outer straining member 2 may. be given. a positive tilting motion e. g; through a' rotary driving mem ber' engaging the head of said cylinder 2 at its innner periphery by means of a roller or a. similar element In thiscase the said roller shouldbe" arranged so as to be closely before or behind the feeding thumb 8 with regard to its respective position on-the'shaft 7 and-thedirection olrotation. of the latter, the object being-to provide an. enlarged. in take space in due register'withw thefeeding action.

Fig. 4 shows a further modification in which v both the inner and outer straining members 3 and 4- are tiltable, having'spherical= bearing surfaces and. 21 on. their. respective lower edges Tilting motion. is imparted to the inner strainingv member 3 by means of'an eccentric 23 rigidly mounted onthe shaft. 7 under nave 22 of the pressing thumb 8,.thenave 24 of the inner straining memberloosely, surrounding the eccentric. Tiltingmotion is imparted to the outer straining member 4 by the action of the pressing thumb 8 on. the material in. the annular pressing space. The discharging knives Which operate in the outlet end of the annular pressing space and serve to scrape the material out of the same, are axially shiftable in the same manner as the pressingthumb 8,.which1makesit possible to:reg ulate the pressure in the pressing space. In

the embodiment shown thepnessinggdevice 8 and discharging scrapers 12 are positively connected together by a system of levers in sucha" manner that with the automatic withdrawah of the pressing devicethe discharging scrapers are simultaneously movedin' the same direction. The system oflevers consistsof the. lever 26 which is pivoted to "the frame ofthe press at and" whose free lubly mounted upon the shaft "If the ID'OVBDIQDi) of the material in the-pressing spaceis stopped by an increase-in pressure,

the pressing device. rises which raises the lever 26 and causes the discharging, scrapers to penetrate, deeper" into the outlet end; of the press; thereby increasing: the discharge of material from the pressing space, When the pressure in. the pressing space returns to normal, the. pressing thumb sinks ..again, forcing, the scrapers 12back. to their normal operating position- Thecenter of he tilting motion which. is

preferably in the longitudinal. axi'sjof. the

press and the: p-lanerespectively Where the tilting, of the SlZIiEtllllIlghlQHlbQL is zero may be located. at any distance below thexfeeding member above or below the dischaaige port or the pressconiormably to special. requirements. 1 1

Having thus described. my. invention it shall be understoodthat Ifwislinot tolimit myself to any particular structural details described in the specification. and. shown in the drawings by. way. of examples, as various other changes than those indicatediabove may be made without'deviating from; the spirit and the leading. ideas oi my. invention.

What I claimis:

1. A straining press comprising a. pair of cages one inside the other and forming between theme space for the reception of material tobe pressed andgnieans for rela tively tilting saidl cages. I

2. A straining press comprising apalir. of cylindroidal cages of 1 different diameter mounted one inside the. other. and: forming between them an annular space fonthe reception of material to be pressed, and means for relatively. tilting; said. cages ti k :strainingv press comprising a pair-of cylindroidal cages of different diameter mounted. one inside the other. andI-fonming; between them an annular space for the resaid annular space is progressively squeezed and compressed in a transverse direct1on.

4:. A straining press comprlsing a pa r of cylindroidal. cages of different diameter.

mounted one inside the other and forming between them an annular space for the reception'of material to be pressed, and

means for imparting to one of said cages a rotary tilting motion such that it dev scribes a cone whose apex lies onthe longitudinal axis of the press 5. A straining press comprising .apair of cylindroidal cages of different'diameter mounted one inside the other and forming between them an annular space for the reception of material to be pressed, means for tilting one of said cages, and a circular guide surrounding said tilting cage at the transverse plane where its'tilting motion is Zero.

6. A straining press comprising a pair of cylindroidal cages of different diameter mounted one inside the other and forming between them an annular space for the reception of material to be pressed, a revoluble shaft, an eccentric on said shaft,

and an eccentric ring rigid with one of said cages and cooperating with said eccentric, whereby a rotary-tilting motion can be imparted to the cage to which said eccentric ring is secured. a f

7. Astraining press comprising a pair of cylindroidal cages of different diameter I mounted one inside the other and" forming between them an annular space for the reception of material to be pressed, one of said cages being freely tiltable, means for feeding material to be pressed into one end of said annular space, and a pressing thumb working at the intake end of said annular space and adapted to be moved around the same for pressing in new material to be pressed, whereby said tiltable cage'is tilted so as to squeeze the material in the side of said annular space opposite to said thumb in a substantially transverse direction. I,

8. A straining press comprising a pair of cylindroidal cages of different diameter mounted one inside the other and forming between theman annular space for the reception of material to be pressed, said cages being tiltably mounted, means for feeding material to be pressed into one end of said annular space, a revoluble shaft within said cages, an eccentric on said shaft, an eccentric ring cooperating with sand eccentric and rigid with one of said cages, a pressing thumb secured on saidshaft so as to rotate I therewith and extending into the intake end of said annular space, the point' of said eccentric furthest from the axis of said shaft f being opposite to said pressing thumb.

9. A straining press comprising a pair of cylindroidal cages ofdifferent diameter mounted one inside the other and forming between them an annulars'pace for the reception of material to be pressed, means for of said annular space, an axially shifta-ble feeding material to. be pressed into one end end of said annular space and adapted to be moved around the same for pressingin new material to be pressed, and yieldable means for forcing said thumblagainstv said material.

10. A straining press in accordance with claim 9 in combination with a discharging scraper adapted to be rotated the discharging end of said annular space, said scraper being shiftable longitudinally of said cages, and connections between said scraper and said pressing thumb such that the longitudinal position of said scraper is dependentupon the longitudinal posi- .tion of said pressingthumb.

11. A, straining press in accordance with claim 9 in combination with a discharging scraper adapted to be rotated in the discharging end of said annularspace, said scraper being] shiftable longitudinally of said cages, connections between said scraper and said pressing thumb such that the 1on gitudinal position of said scraper is dependent upon the longitudinal position of said ressin thumb and means for var in' theforce of said yieldable means.

12. A straining press for the purpose set forth and having the features outlined in claim 9 characterized therein, that the pressing thumb is axially slidably mounted with respectto said cages, and automatic means for controlling the working position of the pressing thumb, conformablyto the" required working pressure of the press.

The foregoing specification signed at Berlin, Germany this 15thday of April,

, ARL SOHLER.