US2337817A - Loading gate for centrifugal machines - Google Patents

Loading gate for centrifugal machines Download PDF

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Publication number
US2337817A
US2337817A US373397A US37339741A US2337817A US 2337817 A US2337817 A US 2337817A US 373397 A US373397 A US 373397A US 37339741 A US37339741 A US 37339741A US 2337817 A US2337817 A US 2337817A
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US
United States
Prior art keywords
gate
loading
cross head
centrifugal
face
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Expired - Lifetime
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US373397A
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English (en)
Inventor
Hertrich Joseph
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Western States Machine Co
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Western States Machine Co
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Filing date
Publication date
Priority to BE476081D priority Critical patent/BE476081A/xx
Application filed by Western States Machine Co filed Critical Western States Machine Co
Priority to US373397A priority patent/US2337817A/en
Application granted granted Critical
Publication of US2337817A publication Critical patent/US2337817A/en
Priority to FR951722D priority patent/FR951722A/fr
Priority to GB21852/47A priority patent/GB637818A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
    • B65G2814/03—Loading or unloading means
    • B65G2814/0301—General arrangements
    • B65G2814/0314—General arrangements for moving bulk material downwards
    • B65G2814/0319—General arrangements for moving bulk material downwards through a closable or non-closable outlet opening
    • B65G2814/0323—General arrangements for moving bulk material downwards through a closable or non-closable outlet opening with chutes or plates in or beneath the opening

Definitions

  • This invention relates to new and useful improvements in loading gates or spout discharge mechanisms, particularly for loading charges of sugar massecuite or magma into sugar centrifugals.
  • the separation of sugar crystals from mixtures of sugar crystals and syrup is carried out by treating charges of the mixture in centrifugal machines of the filtering type.
  • a supply tank, or centrifugal mixer is usually provided adjacent to a group of centrifugal machines, to hold a comparatively large quantity of the mixture.
  • Loading spouts or chutes extend from the bottom of this tank to positions permitting charges of the mixture to be loaded into the baskets of the respective centrifugals.
  • Each loading spout is equipped with a loading gate by which to control the load ing operations.
  • the loading gate is usually actuated by hand, although automatic actuation may be provided if desired.
  • the object of the present invention is to provide a new and improved loading gate construction, for centrifugal mixer tanks and the like, which makes it easier for an attendant to load each centrifugal, which enables the centrifugal to be loaded faster than in the use of gate constructions heretofore used, which prevents leakage of syrup or other liquid from the loading spout when the gate is closed and prevents such leakage along the face of the gate when the same is opened, which possesses a distinct wedging or self-locking action when moved to closed position, and which can be readily moved from closed to open position notwithstanding this self-locking action, even when sticking has occurred.
  • a more specific object of my invention is to provide a loading gate for centrifugal mixer spouts and the like, which comprises a sliding .closure or gate that moves in a rectilinear path across the spout outlet, together with means for automatically locking the gate, so as to prevent inadvertent opening thereof, as the gate actuating mechanism is moved to closed position.
  • Another object is to provide such a gate construction comprising means for holding the gate in sealed relation to a gate facing, under constant pressure, whenever the gat is not locked or clamped in. closed position, together with means for adjusting the pressure of the gate against its facing.
  • Still another object is to provide a selflocking gate construction which becomes unlocked in the initial movement of the gate actuating mechanism toward open position, after which the full force of such mechanism is available to open the gate itself.
  • a further object of my invention is to provide a centrifugal loading gate having a drip pan associated therewith so as to direct material from the gate into the centrifugal basket and prevent undesirable dripping of syrup or otherliquid on or about the centrifugal casing, together with means whereby the drip panimmediately drops to its loading position at the start of a loading operation, means responsive to closing movement of the gate actuating mechanism forraising the drip pan to a drip-catching position, and means allowing movement of the drip pan to'its lower position, under manual pressure, while the gate is closed.
  • Figure 2 is a plan view, partly in section, show? ing the end of the mixer spout and part of the loading gate associated therewith.
  • Figure 3 is a front elevation of the loading gate assembly, v
  • Figure 4 is an enlarged vertical section of part of the gate construction, as viewed substantially along the line 4-4 of Figure 2;
  • Figure 5 is a fragmentary cross section along line 55 of Figure 2, showing certain details of construction.
  • FIGs 1 to 5, inclusive theinvention is illustrated as applied to a mixer tank for sugar centrifugals, of the so-called refinery type.
  • the bottom portion of the tank is provided with a loading chute'or spout l2 which extends laterally and downwardly to a position overlying the curb or casing 20 and rotatable basket 22 of a sugar centrifugal.
  • the basket v22 is suspended in the usual manner from a, centrifugal spindle 24, which is adapted to be driven at high speed by suitable means (not shown) in order to separate syrup from each charge of sugar massecuite or magma in the basket and expel the syrup or liquid content of the charge through the usual perforate side Wall of the basket.
  • the spout i2 is rectangular in shape and has bolted thereto and forming the end portion thereof a gate body i4 upon which the loading gate and the gate actuating mechanism are mounted.
  • the end wall of body [4 has a plane face 30 to which is fitted a facing 32 of bronze or other material capable of providing a smooth plane bearing surface for the gate 34.
  • the facing 32 as seen in Figure 3, may be described as being H-shaped with the cross member38 of the H overlying the upper margin of the spout outlet and the lower ends of the H connected together across the lower margin of the outlet.
  • the upper legs 33 of the H project above the gate body and provide a slideway for th gate 34 in its movement awayfrom and to closed position across the spout outlet opening Hi.
  • the closure member or gate 34 preferably consists of a cast metal plate having a smooth inner face which in closed position across opening l6 rests throughout its perimeter on the bronze facing 32. Lugs 36 are secured to the gate 34 in such manner as to overlie the cross member 38 and prevent downward movement of the gate beyond its closed position.
  • gate actuating mechanism including a cross head 40 which extends transversely across the outer side of the gate and has inturned end portions 42 which embrace or slide on cooperating parts 44 of the gate body.
  • the cross head 49 as seen in Figure 3, is located between upper and lower pairs of abutmentsilfi and 4-8, respectively, on the outer face of the gate 34, and fiat contact spots are provided on the cross head in position to engage these abutments and cause vertical movement of the gate when the cross head itself is moved vertically.
  • This connection between the cross head and the gate is a lost-motion connection which, for reasons hereinafter to be described, has an important function in the operation of the new apparatus.
  • stub shafts 52 From opposite ends of the cross head 40 extend stub shafts 52 upon which, respectively, the lower ends of two parallel levers 54 are swivelled. Brackets 56, joined integrally to the gate body l4, extend vertically above the gate body and support hubs 5B in which an actuating shaft 64 is mounted.
  • Two parallel levers 62 are keyed at their respective upper ends to shaft 69, and at their lower ends they are articulated to the upper ends of the levers 54 by means of stub shafts 64.
  • An actuating lever 66 also is keyed to shaft 60, and this lever extends forwardly from the loading gate and terminates in. a handle 68 which is positioned for convenient operation by an attendant of the centrifugal. It Will be understood that the connection between shaft. 60 and cross head 48, throughthe parallel sets .of..leversi54.and 7.5
  • the mechanism may be designed so that a lever ratio of approximately 9 to 1 will exist at the beginning of opening movement of the gate, which is the point of greatest resistance to movement, and so that at no time will the lever ratio affecting the gate be les than 3 to 1. It will be further understood that in the case of a vertically movable gate the double or parallel linkage connecting the cross head 46 with the actuating shaft 60 ensures parallel motion of the cross head and the sliding gate 34.
  • means are provided between the cross head 39 and the gate 34 by which to regulate the clearance and also to regulate and hold constant the pressure of the gate against the facing.
  • washers '18 are carried by the cross head in position to bear against flat spots 72 on the outer side of the gate. Hollow screws T4 are threaded in the cross head so as to limit movement of the washers l6 away from the gate.
  • compression springs '58 are located inside of the screws l4 so as to push the washers against
  • the pressure of springs l8 can be adjusted by means of screws 89, which are threaded inside of the screws 14.
  • the inturned end portions 42 of the cross head .40 are. formed with vertically elongated wedges or tapered surfaces 82 (see Figures 2 and 4) ,and these cooperate with similarly tapered surfaces 84 on parts 44 of the gate body I4.
  • the tapered surfaces 82 are held out of contact with the tapered surfaces 84 by reason of the engagement of the ends 86 of portions 42 with straight surfaces 88 on parts 44.
  • a slight additional downward movement of'the cross head for exsition and clamping it tightly against its facing. See Figure 4.
  • the angle of taper of-thesurfaces 82 and 841s approximately 2 degrees, which ensures a strong wedging effect that holds the gate locked once it has been wedged tightly in closed position.
  • the wedging and selflocking effect is increased by the fact that the tapered surfaces are elongated and therefore present a substantial area of frictional engagement; in the illustrated embodiment they approximate 6 inches in length.
  • a further important feature of the illustrated embodiment is that the self-locking or wedging action just described takes place by movement of the cross head it! after the gate 34 has been closed, without requiring corresponding movement of the gate itself. This results from the lost-motion connection, as hereinabove described, between the cross head and the sliding gate.
  • the cross head In upward movement of the gate the cross head bears against the abutments it and lifts the gate to open position; in downward movement to close the gate, motion of the cross head 39 is transmitted into motion of the gate through the medium of a compression spring 9i), which bears against a lug 92 integral with the gate.
  • tubes l3 extend through the screws 85] and are threaded at their inner ends in the washers iii, so as to supply lubricant to the inside faces of the washers. At their outer ends the tubes 13 carry fittings T for grease lubrication.
  • a drip pan 84 is provided at the bottom of the gate structure for the dual purpose of directing each charge of the mixture into the centrifugal basket and catching any drippings that may fall from the gate after a loading operation.
  • This drip pan as shown in Figures 1 and 3, is swivelled near its back side to supports screwed into the sides of the gate body.
  • a lever 96 is articulated between its ends, as at 91, so as to be held in the full line position of Figure 1 by a pin 53 on cross head 4%! when the gate is in closed position.
  • a tension spring 99 connects the other end of lever 96 with the drip pan and normally holds the drip pan in a position in which a lug ldil thereon abuts against lever 96.
  • the drip pan is freed from the constraint of pin 93 and drops immediately to the dotted line position of Figure 1 as soon as the cross head is moved a short distance away from its normal closed position. This tends to speed up the loading operation, as there is no spring tension or counterweight to be overcome by the mass entering the drip pan before the pan will assume the position required for loading. Nevertheless, the drip pan rises automatically when pin 88 engages and moves lever 25 upon closing of the gate.
  • Another result of this arrangement is that the drip pan can always be pushed downwardly, against the tension of spring 99, by applying a pressure against the pan itself.
  • an attendant who has just closed the gate after a loading operation can readily scrape adhering material from the drip pan and into the centrifugal by means of a paddle or the like, and manual pressure applied through the paddle will serve to lower the drip pan into the desired position.
  • the new loading gates embodying my invention possess a number of distinct advantages in comparison with the constructions heretofore used in the art. They allow the use of large spout or gate openlngs without encountering trouble from leakage, which enables the volume of flow and the loading speed to be increased. They make it easier for an attendant to load each centrifugal, be cause a natural pulling movement is used to actuate the gate, permitting a strong force to be readily applied, and the effective lever ratio is great enough to move the gate readily under almost any circumstances. After the gate has been closed, the actuating lever is disposed entirely out of the way of the centrifugal attendant and does not interfere with easy cleaning of the drip pan or the centrifugal curb.
  • the gate is securely and tightly locked in closed position between successive loading operations, without danger of leaking or of sliding partly open because of vibrations or other inadvertency.
  • This locking effect is obtained automatically by the normal movement of the actuating mechanism, without requiring any separate operation.
  • the locking effect is destroyed in the same Way, and before the actuating mechanism assumes the load of the gate itself.
  • the gate closure is constantly held against its facing under substantial pressure, even when the gate is partly or entirely open, so that the tendency of syrup to infiltrate between the gate and the facing is greatly reduced, thus obviating much of the trouble which has heretofore resulted from the cooling and crystallization of syrup on the facing.
  • the pressure of the gate against its facing and the clearance between these parts are subject to regulation at wlil so as to meet any particular conditions encountered in the use of the apparatus.
  • the illustrated embodiment of my invention is a loading gate adapted especially for a mixer spout of the so-called refinery type
  • the gate body and actuating mechanism may be mounted so that the cross head and gate move in a substantially horizontal plane, to allow material to flow almost vertically downward from the tank and spout.
  • a single toggle linkage may be preferred for moving the'gate, and the actuating lever may be arranged so as to be pulled forwardly by the centrifugal attendant unlocking and opening the gate.
  • actuating lever may be moved manually or by means of a motor, hydraulic or pneumatic cylinder or other automatic device connected therewith.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout and having a plane end face to surround the spout outlet and extend to a side thereof, a gate fitted to slide on said face and normally to close said outlet, means to maintain the gate constantly in I engagement with said face, gate actuating means including a lost motion-connection providing lost motion between the same and the gate when the gate is in closed position, and means responsive to the lostemotion of said actuating means for clamping the gate tightly against said face.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout and having a plane end face to surround the spout outlet and extend to a side thereof, a gate fitted to slide on said face and normally to close said outlet, means to maintain the gate constantly in engagement with said face, gate actuating means including a cross head traversing said gate, a lost-motion connection between said cross head and said gate, a fixed actuating shaft, a toggle connection between said cross head and said shaft for sliding said gate on face and means responsive to the lost-motion of said cross head relative to said gate for clamping the gate tightly in closed position againstsaid face.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout and having a plane end face to surround the spout outlet and extend to a side thereof, a gate fitted to slide on said face away from and to a closed position covering said outlet, means to maintain said gate constantly in engagement with said face, gate actuating means having only a lostmotion connection with said gate for moving said gate along said face, and meansresponsive to the continued lost-motion of said gate actuating means after said gate has been movedv thereby to closed position for clamping said gate tightly against said face.
  • a loading gate for'loading a centrifugal --machine or the like, a hollow gate body adapted to form the end portion of a loading spout, a
  • said gate tightly against said facing in responseto continued movement of said cross ,sideof the body outlet, a gate fitted to slide recti- ,Eilnearly on said surface away from and to a closedposition, covering said outlet, a cross head traversing the outerside of said gate and connected with saidbody for movement in a path parallel to the longitudinal axis of said facing, said gate having abutments on its outer face embracing saidcross head and forming a lostmotion connection therewith, means operated by lost motion of said cross-head between said abutments for clamping said gate against said facing,
  • a hollow gate bod adapted to form the end portion of a loading spout, a
  • a loading gate for loading a centrifugal machine or the like, a hollow gate body adapted to form the end portion of a loading spout, a gate facing-attached to the end of said body and providing a plane bearing surface surrounding and extending to a side of the body outlet, a gate fitted to slide on said surface away from and toa closed position covering said outlet, a
  • cross head traversing the outer side of said gate and connected with said body for movement in a path parallel to the longitudinal axis of said facing, means formoving said cross head in said path, a lost-motion connection for moving said gate with said cross head, a plurality of washers carried on the inner side of said cross head and bearing against the outer side of said gate, means on said cross head for holding said washers against said gate, said last recited means including hollow screws threaded in said cross head and adapted to limit the clearance between said washers and said gate and compression springs inside of said hollow screws to press said washers against said gate and means operated by the lost motion of said cross-head relative to said gate for clamping said gate against said facing.
  • a loading gate for loading a centrifugal machine or the like, a hollow gate body adapted to form the end portion of a loading spout, a gate facing attached to the end of said body and providing a plane bearing surface surrounding and extending to a side of the body outlet, a gate fitted to slide on said surface away from and to a closed position covering said outlet, a cross head traversing the outerside of said gate and connected with said body for movement in a path parallel to the longitudinal axis of said facing, means for moving said cross head in said path, a lost-motion connection for moving said gate with said cross head, means operated by the lost motion of said cross-head relative to said gate for clamping said gate against said facing, a plurality of washers carried on the inner side of said cross head and bearing against the outer side of said gate, means on said cross head for holding said washers against said gate, said last recited means including hollow screws threaded in said cross head and adapted to limit the clearance between said washers and said gate, compression springs inside of said hollow screws to
  • a gate body adapted to form the end portion of a loading spout and defining an outlet to lead toward the centrifugal, a slidable gate normally closing said outlet, means for sliding said gate to and from an open position, a drip pan pivotally mounted below said outlet for movement from an upper, drip-catching position to a lower, loading position, and means operative when the gate is closed and rendered inoperative when the gate is opened for holding said drip pan in its upper position, said holding means including spring means connected with the drip pan and with another element of the holding means so that the drip pan may be moved to its lower position under manual pressure while the gate is closed.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout, said means having a plane end face to surround the spout outlet and extending to a side thereof, a gate fitted to slide on said face and normally to close said outlet, actuating means for sliding said gate on said face, adjustable stop means for limiting the clearance between said gate and said face, compression spring means for constantly pressing said gate against said face and sepa rately adjustable means for varying the compression of said spring means.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout and having a plane end face surrounding the spout outlet, a gate fitted to slide on said face and normally to close said outlet, said plane face extending beyond said outlet to a side thereof a distance sufficient for the gate to slide along the face and substantially uncover the outlet, means including a cross-head extending across said gate for sliding said gate on said face, and resilient means carried by said cross-head for constantly pressing said gate against said face.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout and having a plane end face surrounding the spout outlet, a gate fitted to slide on said face and normally to close said outlet, said plane face extending above said outlet a distance sufficient for the gate to slide thereon'and substantially open the outlet, actuating means connected with said gate for sliding the same so as to open and close the outlet, compression spring means between said gate and part of said actuating means for constantly pressing said gate against said face, and adjustable means for varying the compression of said spring means.
  • a loading gate for loading a centrifugal machine or the like comprising means adapted to form the end portion of a loading spout and having a plane end face surrounding the spout outlet, a gate fitted to slide on said face and normally to close said outlet, said plane face extending beyond said outlet a distance sufficient for the gate to slide thereon and substantially uncover the outlet, means including a cross-head extending across said gate for sliding said gate on said face, adjustable means carried by said cross-head for limiting the clearance between said gate and said face, and compression spring means carried by said cross-head for constantly pressing said gate against said face.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Centrifugal Separators (AREA)
US373397A 1941-01-07 1941-01-07 Loading gate for centrifugal machines Expired - Lifetime US2337817A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE476081D BE476081A (en(2012)) 1941-01-07
US373397A US2337817A (en) 1941-01-07 1941-01-07 Loading gate for centrifugal machines
FR951722D FR951722A (fr) 1941-01-07 1947-08-07 Dispositif de chargement pour centrifugeuse
GB21852/47A GB637818A (en) 1941-01-07 1947-08-08 Improvements relating to loading gates or charging spouts for centrifugal machines

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Application Number Priority Date Filing Date Title
US373397A US2337817A (en) 1941-01-07 1941-01-07 Loading gate for centrifugal machines

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US2337817A true US2337817A (en) 1943-12-28

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US373397A Expired - Lifetime US2337817A (en) 1941-01-07 1941-01-07 Loading gate for centrifugal machines

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US (1) US2337817A (en(2012))
BE (1) BE476081A (en(2012))
FR (1) FR951722A (en(2012))
GB (1) GB637818A (en(2012))

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517408A (en) * 1946-01-15 1950-08-01 Charles A Olcott Gate operating mechanism
US2614733A (en) * 1947-05-05 1952-10-21 William H Anderson Hopper door unit and material spreader assembly for airplanes
US2638225A (en) * 1947-09-05 1953-05-12 Baker Perkins Inc Control mechanism for centrifugal charging valves
US2679335A (en) * 1951-02-15 1954-05-25 Newaygo Engineering Company Dribble gate
US2801035A (en) * 1953-09-17 1957-07-30 Western States Machine Co Power-operated loading gate for centrifugal machines
US2823805A (en) * 1952-08-15 1958-02-18 Western States Machine Co Sugar centrifugal charging apparatus
DE1036764B (de) * 1956-09-22 1958-08-14 Western States Machine Co Beschickungseinrichtung fuer Zentrifugen od. dgl.
DE1085824B (de) * 1958-11-25 1960-07-21 Gutehoffnungshuette Sterkrade Vorrichtung zum Fuellen von Zentrifugen, insbesondere Zuckerzentrifugen
US2998220A (en) * 1956-02-28 1961-08-29 Western States Machine Co Loading gate assemblies
US3083057A (en) * 1959-02-12 1963-03-26 Orville R Kiser Gravity grain box
US3082700A (en) * 1958-11-10 1963-03-26 Entpr Railway Equipment Co Hopper car discharge outlet sliding closure actuating mechanism
US3100456A (en) * 1958-11-10 1963-08-13 Entpr Railway Equipment Co Hopper discharge outlet sealing sliding closure assembly
US3119532A (en) * 1959-10-07 1964-01-28 Talbot Waggonfab Closure device for flat bottom vehicles
US3926406A (en) * 1972-07-26 1975-12-16 United States Steel Corp Casting of metals
US5254241A (en) * 1992-08-12 1993-10-19 The Western States Machine Company Loading control system for a cyclical centrifugal machine which adjusts pinch position

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517408A (en) * 1946-01-15 1950-08-01 Charles A Olcott Gate operating mechanism
US2614733A (en) * 1947-05-05 1952-10-21 William H Anderson Hopper door unit and material spreader assembly for airplanes
US2638225A (en) * 1947-09-05 1953-05-12 Baker Perkins Inc Control mechanism for centrifugal charging valves
US2679335A (en) * 1951-02-15 1954-05-25 Newaygo Engineering Company Dribble gate
US2823805A (en) * 1952-08-15 1958-02-18 Western States Machine Co Sugar centrifugal charging apparatus
US2801035A (en) * 1953-09-17 1957-07-30 Western States Machine Co Power-operated loading gate for centrifugal machines
US2998220A (en) * 1956-02-28 1961-08-29 Western States Machine Co Loading gate assemblies
DE1036764B (de) * 1956-09-22 1958-08-14 Western States Machine Co Beschickungseinrichtung fuer Zentrifugen od. dgl.
US3082700A (en) * 1958-11-10 1963-03-26 Entpr Railway Equipment Co Hopper car discharge outlet sliding closure actuating mechanism
US3100456A (en) * 1958-11-10 1963-08-13 Entpr Railway Equipment Co Hopper discharge outlet sealing sliding closure assembly
DE1085824B (de) * 1958-11-25 1960-07-21 Gutehoffnungshuette Sterkrade Vorrichtung zum Fuellen von Zentrifugen, insbesondere Zuckerzentrifugen
US3083057A (en) * 1959-02-12 1963-03-26 Orville R Kiser Gravity grain box
US3119532A (en) * 1959-10-07 1964-01-28 Talbot Waggonfab Closure device for flat bottom vehicles
US3926406A (en) * 1972-07-26 1975-12-16 United States Steel Corp Casting of metals
US5254241A (en) * 1992-08-12 1993-10-19 The Western States Machine Company Loading control system for a cyclical centrifugal machine which adjusts pinch position

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Publication number Publication date
FR951722A (fr) 1949-11-02
GB637818A (en) 1950-05-24
BE476081A (en(2012))

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