Patent GB-191202024-A (GB)
Title: Improvements in Apparatus for Moulding and Expressing Oil from Seed and the like.
Inventor: SCOTT ROBERT
IPC: B30B9/04
Filed: 1912-01-25
Granted: 1912-05-16
Abstract: 2024. Scott, R. Jan. 25. Fatty oils, extracting by pressure. - Apparatus for expressing oil from seed &c. comprises a kettle &c. a from which the seed is fed to a box a<2> in which it is moulded by a press j, the moulded cake being transferred by a rotary frame g and feeding- arms o to a series of oil-presses m mounted in a tank n upon a turntable n<1> in a well n<4>; the whole apparatus is automatically operated by hydraulic or like means. Moulding the seed &c. The frame g, Figs. 1 and 2, is rotated by friction gearing to bring a mould plate g<6> beneath the box a<2>, when it engages a stop a<4>. A catch on the frame g raises a lever f, Figs. 1 and 4, so that a lever d is released from a lug f<2> and a valve c is allowed to open under hydraulic pressure to connect a pressure-conduit c' with a port b<2>, so that a ram b is operated to open a slide a' and the box a<2> is charged. The lever f descends under the action of a weight f<1> and a cataract f<3> and engages the lever d so as to close the valve c and connect the port b<2> with an exhaust c<2>; the slide a<3> is then closed by pressure fluid entering by a pipe b<1>. As the slide closes, tumblers b<3>, carried by an extension b<4> of the ram b, close and open valves h, k respectively, so that the frame g sinks in its cylinder g<10> to clear the stop a<4>, and the ram j rises to mould the seed. The valves h, k are like the valve c, except that the valve h is normally open to keep the frame g raised. A rod h<5>, which can rise only when the extension b<4> has returned, prevents the valve k from opening, and hence the ram j from rising, before the slide a<3> is closed, and the frame g may be similarly prevented from sinking before the ram j rises. When the ram j has sunk, the frame g rotates and rises to bring the cakes to the oil presses m. Loading the oil-presses. The moulded cakes are fed to the presses m by a pair of arms o. The frame g closes a valve q, so that the arms are moved into the position shown in Figs. 7 and 9 by a ram p, to which they are pivoted, and a catch o<3> closes a valve s, so that a ram r is allowed to descend and withdraw a wedge r<1>, the arms o then being closed by a spring o' to grip the cake. As the valve q opens, the arms o are returned, a catch o<2> opens the valve s, so that the wedge r<1> rises to separate the arms, and a tumbler o<4> opens a valve v, so that rams t raise the loaded plate m<1> by detents t' on to rods u', where it is held by detents u, and then sink to engage the next plate. As the frame g moves on, it opens a valve w<1> on a pressure conduit w, so that the remaining plates are raised for loading by the main ram m<0>. Actuating the oil-presses. The cylinders of the pressure rams m<7> are connected by conduits m<9> to valves m<6>, m' upon conduits m<2>, m<3> from central boxes m<4>, m<5> connected to low and high pressure mains respectively. As the turntable n<1> rotates, the valves m<6>, m' are opened successively and then closed by racks m<12>. The turntable is rotated by a ram x, which is operated through a valve y, Fig. 1, opened through trip-gearing by the frame g after it has rotated sufficiently to fill one press. Unloading the oil-presses. The presses mare unloaded bv arms u<3> which oscillate the rods u<1>. At each oscillation, the bottom plate drops from the detents u, while the remainder are retained by catches u<2>. The plate drops on to tumblers upon rods z<1> working in dash-pots z<2> and connected to counterbalances z<5>. The rods z' sink until the plate rests upon the ram m<0>, when the rods are raised bv the counterbalances. The plates can then be removed. The arms u<3> are connected to a cross-head which is reciprocated by rams working in cylinders u<40>, u<50> connected to valves u<42>, u<52>, which are successively opened and closed by stops upon the rods u<3>. The valve u<52>, however, is connected to the pressure-conduit through a valve u<6>, which is opened and closed by catches x<4>, x<5> respectively upon the ram x, so that the unloading-arms operate only while the presses are stationary.