baber/WOPTO huggingface dataset:
Patent GB-605302-A (GB)
Title: Method and apparatus for expressing oil
IPC: C11B1/08
Filed: 1945-12-19
Abstract: <PICT:0605302/III/1> <PICT:0605302/III/2> Oil is obtained from oil-bearing nuts, seeds, &c. by heating (cooking) them for a relatively extended period, e.g. 30 to 90 minutes at a temperature appreciably, e.g. at least 10 DEG  F. lower than the predetermined optimum oil-expressing temperature for the particular material, thereafter, and without substantial intervening loss of time or temperature, subjecting said material to a conditioning treatment to reduce and stabilize the moisture content, during a period of shorter duration, e.g. 7 to 15 minutes, than that of said heating treatment, but at a temperature higher than the first heating temperature, but not higher than said optimum oil-expressing temperature, and at the conclusion of said conditioning treatment, without substantial loss of time or temperature, subjecting said material at said optimum temperature to continuous expressing action for removing oil.  The quantity of material at any time in the cooker may be over 25 times, e.g. 40 times the quantity then undergoing expression and may be continuously fed to the cooker, undergoing a gradual rise in temperature during its passage through this vessel to a value below the optimum oil-expressing temperature. In the illustrated embodiment of the invention the material supplied from the hopper 7 is continuously fed by means of the variable screw-type feeder 8 through a conduit 11 into the steam-jacketted horizontal elongated cooking vessel 6 of relatively large diameter, 6 is provided with vents 21 fitted with adjustable doors or dampers to control the rate of escape of any water vapour given off and with an automatic thermo-regulator 55, 57 and temperature recorder 58.  The material is thoroughly agitated and made to advance slowly through the cooker to the discharge end by means of a combined agitator and conveyer consisting of two series of oppositely inclined spiral vanes 18 and 19 mounted upon the shaft 17.  It is discharged through the conduit 24, short variable feeder (screw type) 25 and conduit 26 into the steam jacketted cylindrical conditioning vessel 5 which is of the same general construction as the cooker, but of smaller diameter.  It has similar fittings, including a combined agitator and conveyer rotating at a higher speed than that in the cooker, and the material dehydrated to the required degree is continuously discharged from the conditioner through the feed chute 4 into the vertical feed press 3 from which it passes to the horizontal main press 2.  The cooker and conditioner have capacities which respectively are, at least twenty-five to forty, and five times the capacity of the press.  The process is said to increase the yield and quality of the oil and to conserve heat.  Flaxseed and linseed yield cakes of improved quality and in the extraction of tung oil the desirable condition of reducing access of air to the material to a minimum may be achieved.
Patent GB-1087669-A (GB)
Title: Pressure applicator for sashless windows
IPC: E05B63/00
Filed: 1966-08-01
Abstract: 1,087,669. Sliding window fasteners. G. A. MASON. Aug. 1, 1966 [July 31, 1965], No. 34466/66. Heading E2A. A device for applying pressure to a sliding pane of a sashless window assembly comprises a mounting bracket 10 adapted to be fixed to a window sill adjacent the sliding pane, an axle 16 carried by the bracket and orientated within the bracket to lie in a plane substantially at right angles to the sliding pane, a pressure applicator 12 having on one end a pressure pad 18 adapted to bear against the sliding pane when the device is actuated, the other end of the applicator being provided with an aperture 20 outwardly divergent at each end thereof and by which the applicator is mounted on the axle 16 for rotary movement about an axis at right angles to the axis of the axle, and a camming device 14 also carried by the axle 16 on the opposite side of the applicator from the sliding pane and mounted for rotation about the axis of the axle, the camming device having a camming surface 30a . adapted to bear against the applicator so as to rotate the latter whereby to move the pad into a bearing position against the sliding pane. As shown, the camming device is formed with a second camming surface 30b which is effective against a shoulder 22 on the actuator.
Patent GB-742978-A (GB)
Title: Improvements in or relating to polymeric materials and the productions thereof
IPC: C08F10/00
Filed: 1953-12-14
Abstract: Ethylene is polymerized in an aqueous alcohol medium at a pressure of 4000 to 6000 p.s.i. and a temperature of 40 DEG  to 55 DEG  C. in the presence of an alkyl peroxydicarbonate catalyst, preferably diisopropyl peroxydicarbonate.  Alcohols specified are methanol and ethanol.  The reaction medium may also contain an aliphatic acid, such as formic, acetic, or trifluoroacetic acid, to produce a pH of 2 to 4, and a nonionic emulsifier such as an alkyl aryl polyethylene glycol.  Prior to polymerization the ethylene may be freed from oxygen by maintaining over melted sodium at 150 DEG  C. for two hours.  The polyethylene produced usually has a melting range of 120 DEG  to 130 DEG  C. and a molecular weight of 22,000 to 25,000, and may be admixed with commercial polyethylene, polyisobutylene, and microcrystalline wax, or a mixture thereof with dimeric rosin acids.
Patent GB-389204-A (GB)
Title: Improvements in or relating to apparatus for displaying advertising and like matter
IPC: G09F11/295
Filed: 1931-12-16
Abstract: 389,204. Changing signs. FIELDING, J., 5, Newton Street, Piccadilly, Manchester. - (Reklame-Neuheiten Ges., 21, Victoria Strasse, Berlin.) Dec. 16, 1931, No. 34778. [Class 3 (i).] A display band 25 is wound on and off two rollers 3, 4 with intermittent movement, the direction of winding being reversed at the end of the traverse by reversing the current through a driving motor 19. Mercury switches actuated by cross-bars 28 and tappets on the band 25 are employed to control the motor current and also to light and extinguish a lamp 34 at each change of display. The motor 19 drives by a worm 18 a wheel 17 having a one-way drive on each face whereby one or the other of the rollers 3, 4 is directly rotated by belts 8 tensioned each by a spring-pressed jockey pulley 12. Spring- pressed brakes 71 tension the band 25. The band 25 is built up of steel side ribbons connected by the cross-bars 28 to which the display sheets are hinged. Fig. 5 shows the mercury switch 35 whereby the step-by-step movement of the band is effected. The crossbars 28 in passing close a switch which makes the circuit of a solenoid 43, the core 42 of which in rising lifts a pivoted arm 36 carrying the switch 35, thus breaking the motor circuit 35a, 44 and making the lamp circuit 35a, 45. An escapement 51 slows down the return of the core 42, the arm 36 being held up by a spring-pressed trigger 55 and allowed to fall rapidly when the core 42, by means of a step 47, tilts the trigger. Mercury switches 58, Fig. 2, reverse the direction of current through the motor 19 at each end of traverse of the band 25 by the engagement of tappets near the ends thereof with a tilting lever 63. A reflector 33 surrounds the lamp 34, and a transparent mirror 73 may be fitted in a hinged front door 72.
Patent GB-1190104-A (GB)
Title: Automatic Ticket Gate
IPC: G07F17/14
Filed: 1967-07-28
Abstract: 1,190,104. Automatic ticket gates. TATEISI ELECTRONICS CO. 28 July, 1967 [8 Aug., 1966], No. 34844/67. Heading G4T. An automatic ticket barrier 14 having gates 16, 18 may be switched between two modes of operation, in the first mode the gates normally being held open and closing only if a passenger inserts an invalid ticket or fails to insert a ticket on entering the barrier and in the second mode the gates being closed after a predetermined time has elapsed following the last passenger and opening only on receipt of a valid ticket. The gates are pivoted at their lower ends and raised or lowered by rotation of a gear sector fast with the gates. Movement of a passenger through the barrier is detected by photoelectric means 42, 44 to operate signal generators 46, 48, respectively. In the first mode of operation, a valid ticket generates a set pulse on flip-flop 62 to inhibit element 60. If no ticket or an invalid ticket is received in the apparatus, signal generator 46 sets flip-flop 66 to energize relays 72, 90. Relay 72 changes over contacts 74, 76, 78 and 80 to energize motor 84 closing the gates and relay 90 closes contacts 92 energizing a bell and/or lamp. Flip-flop 66 is re-set by depressing button 98 or by an automatic timer 106 if switch 104 is initially closed. Microswitches 30b and 32b are controlled by gate 16 to reverse the direction of rotation of motor 84 on each actuation. In the second mode of operation, switch 108 is initially closed. As a passenger leaves the barrier, detector 48 is operated to re-set flip-flop 62. The reset output is applied to timer 112, energizing relay 72 after a predetermined time delay to close the gates, and to inhibit element 60 via OR gate 64, preventing operation of warning relay 90 should a passenger with an invalid ticket or no ticket enter the barrier, while the gates are closed. Insertion of a valid ticket sets flipflop 62 to remove the output from timer 112 and de-energize relay 72 opening the barrier. If a passenger with an invalid or no ticket enters the barrier while the gates are still open following a previous passenger, the control circuit operates as in the first mode, the warning relay 90 being de-energized automatically after a predetermined time if switch 110 is initially closed.
Patent GB-1212511-A (GB)
Title: Improvements in power generating plant
Inventor: PARAVICINI THOMAS PITT DE
IPC: F01K21/04
Filed: 1967-01-23
Abstract: 1,212,511. Gas turbine plant. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 22, 1968 [Jan.23, 1967; July 28, 1967], Nos.3409/67 and 34945/67. Heading F1G. In a gas turbine plant, air flowing through a low-pressure compressor 11a, 11b is cooled between the stages by demineralized water passing through a cooler 12, the water then effecting additional cooling of the air in coolers 13, 14 whilst further air compression is effected in compressors 7, 8. The air from compressor 7 passes to a combustion chamber 1 where it is burnt with fuel supplied through line 3 in substantially stoichiometric proportion. The preheated water is also injected into the combustion chamber 1 through line 4 in a manner described in Specification 1,212, 512 to cool the chamber walls and to solidify corrosive combustion products. The gas-steam mixture leaving the combustion chamber 1 drives a high-pressure turbine 5 connected to compressors 7, 8, and then passes through a reheat combustion chamber 17 to a lower pressure turbine 9 driving compressor 11a, 11b and an alternator 10. The reheat chamber 17 is supplied with fuel through line 3a and with compressed air tapped through line 18. The demineralized water may be additionally preheated by passing it through a boiler utilizing turbine exhaust heat. The plant includes an electric starter motor 16.
Patent GB-487779-A (GB)
Title: Improvements in and relating to electrodes for electric discharge devices
IPC: H01J9/04
Filed: 1936-12-19
Abstract: 487,779. Electrode materials. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 19, 1936, No. 34957. Convention date, Dec. 21, 1935. [Class 39 (i)] In the preparation of electron emissive electrodes, the base metal of the electrode is prepared by a superficial alloying with another metal for improving the coaction of the base metal with the emissive coating. The example described comprises a base of nickel which is fashioned into the required shape of the electrode. The active surface is then treated so as to form an alloy with manganese or manganese and barium. Preferably compounds of these substances are used and applied to the surface of the base and treated in a reducing atmosphere. For an alloying with manganese, manganese dioxide is used and for a mixed manganese and barium alloying, either barium manganate or permanganate, or a mixture of manganese dioxide and barium carbonate may be used. The compound may be applied as a solution or a suspension in liquid.
Patent GB-618734-A (GB)
Title: Improvements relating to electric ignition distributor contact breakers
IPC: F02P7/063
Filed: 1946-11-26
Abstract: 618,734. Rotary distributers. WILD, W., and MANTLE, G. M. Nov. 26, 1946, No. 34981. [Class 38 (v)] An ignition distributer for a multi-cylinder engine has a contact-breaker assembly comprising a circular member formed by a conducting body A with insulating inserts B, Fig. 3, which rotates between spring-loaded brushes D, D<1>, Fig. 1. Brush D<1> is mounted in a holder K which is earthed through a plate H and screws J, and brush D is mounted in an insulating holder E which has a terminal G. The circular rotating member A, B has a projection for mounting an H.T. rotor arm.
Patent GB-1457644-A (GB)
IPC: A47C3/30
Filed: 1974-08-08
Abstract: 1457644 Lockable gas springs STABILUS GmbH 8 Aug 1974 [16 Aug 1973] 34984/74 Heading F2S A lockable piston-cylinder gas spring, for resiliently mounting a seat, and having a flow connection 15, 13, 14 between the two cylinder chambers 11, 12 which is normally closed by a valve member 6 but which can be opened, when desired, to adjust the mean height of the seat, is provided with a second flow connection 18 between the chambers which is normally closed but comes into effect automatically as the piston nears an end of the cylinder to override the gas springing and locking, resilience then being provided by a solid spring 17. The second connection 18 is provided by helical, oblique or axial grooves (20) in the cylinder (Fig. 3, not shown) or a larger diameter portion 19 of the cylinder. These come into effect when the gas spring is approaching itfully contracted position. Alternatively (not shown), both flow connections are in the piston, a valve member being automatically moved to open the second flow connection when the piston is a predetermined distance from the cylinder end. To adjust the height of the gas spring, an operating lever (3, Fig. 1, not shown) is pivoted to depress the valve member 6, an annular recess in the valve member then placing the chamber 11 in communication with the passage 15 and hence the chamber 12.
Patent GB-825254-A (GB)
Title: Improvements in or relating to methods of determining the extent to which moving containers in processing machines are filled with the material to be processed
IPC: B04B11/04
Filed: 1957-11-11
Abstract: In using a motor-driven processing machine of the kind in which a container for the material to be processed is charged with the material whilst the container is moving, the machine is driven, before the charging operation begins, at a known speed, and the fall in speed whilst the container is being charged is supervised, and is used as a measure of the extent to which the container is filled.  In one example the centrifuge is driven by a motor to which is attached a tachometer dynamo, the output voltage of the latter being applied to a speed-measuring relay so that when, after switching on, the motor speed reaches 200 r.p.m., the relay switches off the motor and opens a slide gate to release material to be centrifuged and permit charging of the container.  The machine and motor rotor slow down owing to inertia and to the influx of material, and at a second speed value (e.g. between 100 and 180 r.p.m.), the relay closes the slide gate and energises the motor again for initiation of processing.  In an alternative the driving motor is successivley de-coupled from and re-coupled to the centrifuge instead of being switched off and on, the speed-measuring apparatus being connected to the centrifuge.  For situations where there is low inertia of moving parts or considerable friction, or both, the motor is run at reduced power during the charging operation instead of being switched off or decoupled.
Patent GB-801534-A (GB)
Title: A process for the preparation of an unsymmetrical dialkylhydrazine
Inventor: CHURCHILL JOHN WILBUR
IPC: C07C241/02
Filed: 1956-11-16
Abstract: Unsymmetrical dialkylhydrazines are prepared by reacting hydrogen at superatmospheric pressure with the corresponding dialkylnitrosamine in the presence of a nickel, copper chromite or palladium hydrogenation catalyst. Reaction temperatures of 0 DEG  to 100 DEG C. are suitable for the nickel or palladium catalysts and those from 0 DEG  to 175 DEG  C. are suitable for the copper chromite catalyst. Raney nickel and palladium supported on alumina are preferred forms of the nickel and palladium catalysts, respectively.  Preferred hydrogen pressures are between 1200 and 2000 p.s.i.g.  The reaction may be carried out with or without aqueous or non-aqueous solvents. For continuous working a dialkylnitrosoamine is made to flow downwards through a catalyst bed contained in a vertically arranged cylindrical vessel, in which suitable superatmospheric hydrogen pressures are maintained; unreacted hydrogen and dialkylnitrosamine are separated from the dialkylhydrazine and are recycled.  The examples describe the preparation of dimethylhydrazine, methylethylhydrazine, diethylhydrazine, di-n-propylhydrazine and di-n-butylhydrazine.
Patent GB-1007199-A (GB)
Title: Spacing means or distance pieces for corrugated sheet members
Inventor: RIPLEY GEORGE
IPC: F28F25/08
Filed: 1963-09-05
Abstract: 1,007,199. Packing for gas/liquid contact columns. DAVENPORT ENGINEERING CO. Ltd. Sept. 24, 1964 [Sept. 5, 1963], No. 35096/63. Heading B1R. [Also in Division F4] A spacer of synthetic plastics material for corrugated sheet members in a water cooling tower or like apparatus comprises two aligned, preferably similar, lugs 1 and 2 connected by a transversely slotted bridge 3, the slot 4 being shaped to the contours of the corrugated members. The end of lug 1 is convex and the end of lug 2 concave, and preferably these lugs incorporate perimetral flanges whereby they are dished on both sides. When fitted to a corrugated sheet member 5, Fig. 4, the slot 4 is forced apart so it then grips the member and two further sheet members 5 are arranged as shown on either side of the member carrying the spacers.
Patent GB-367449-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01J40/06
Filed: 1930-11-21
Abstract: 367,449. Discharge e apparatus. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, London. Nov. 21, 1930, No. 35180. Drawings to Specification. [Class 39 (i).] An electron emitting cathode for a photoelectric cell or other discharge tube is prepared by depositing an alkali metal such as caesium on an oxidized silver support, the amount of oxygen absorbed by the support being equivalent to an absorption of a pressure of 0À075-0À08 mm. of mercury from a volume of 1000 c.cs. of oxygen measured at 20‹ C. for every 100 sq. cms. of surface. The bulb of a photo-electric cell is evacuated and baked for 30 minutes at 500‹ C., and then for 10 minutes at 350‹ C. Current is passed through a tungsten helix so as to evaporate an attached silver bead, silver being deposited on the bulb, over an area of 80 sq. cms. Oxygen is admitted at a pressure of 0À2 mm. and is absorbed in the silver layer until the pressure falls to 0À14 mm., the absorption being effected by passing a glow discharge at 1000 kilocycles from a continuous wave supply as set out in Specification 361,118. Caesium is admitted and the bulb is baked at 155-165‹ C. for 3 minutes ; this step is repeated until the sensitivity reaches 15 micro-amps per lumen. The baking is then continued for 10 minutes until the sensitivity increases to 30 .micro-amps per lumen.
Patent GB-381405-A (GB)
Title: Improvements in starting devices for internal combustion engines
IPC: F01L13/00
Filed: 1931-12-21
Abstract: 381,405. Starting. BECKER, G., 18, An der Heerstrasse, Charlottenburg, Berlin. Dec. 21, 1931, No. 35302. [Class 7 (v).] A distributer for supplying starting fluid under pressure to multi-cylinder engines comprises a driving shaft a<1> carrying a cam plate bl which is automatically displaceable axially into and out of contact with a series of valves c<1>, c<2> parallel to and arranged in a circle concentric with the shaft, the valves serving both to distribute and to cut off the supply of pressure fluid. The displacement of the cam plate into its inoperative position may be effected by a centrifugal governor upon the attainment of a given engine speed, or by a worm and nut arrangement after a given number of engine revolutions. As shown in Figs. 1 and 2, the cam plate b<1> is positioned by a spring h which presses it against centrifugal weights e<1>, e<2> abutting against a collar g<1>. Upon the attainment of a certain engine speed, the centrifugal weights open and allow the spring h to displace the cam plate b<1> until the latter abuts directly against the collar g<1>, in which position it is clear of the valves, which remain shut and so cut off the pressure supply. For starting, the shaft k is manually displaced and the cam plate so brought into contact with the valves. In a modification, Fig. 5, the cam plate b<2> is moved into its inoperative position after a given number of engine revolutions. Upon rotation of the engine shaft a<2> a gear m is rotated and by means of a ratchet y the threaded shaft n having a traversing nut o is rotated. When the nut o reaches the stop w<2> it displaces the rods p<1>, p<2>, pulls the toggle linkage u, and allows the spring h to expand and move the cam plate b<2> clear of the valves c<1>, c<2>; at the same time the stop w<3> on the rod p<1> moves the. collar x and so slides the gear m out of engagement with its driving pinion. For restarting, the cam plate b<2> is returned to its operative position by inserting in the socket s<1> a crank handle carrying a crown wheel which meshes with the pinion y, so enabling the threaded shaft n to be turned ; when the crank handle is removed from the socket, the spring v moves the pinion m into driving engagement with the shaft a<2>.
Patent GB-367885-A (GB)
Title: Time lag accumulating and transmitting device particularly for electric circuit switches and change-over switch purposes
IPC: G04F1/00
Filed: 1930-11-25
Abstract: 367,885. Retarding action of switches ; retractive switches. WOLFF, F., 17, Von Luckstrasse, Nikolassee, Berlin. Nov. 25, 1930, No. 35420. Convention date, Nov. 25, 1929. [Class 38 (v).] Relates to switches provided with a time delay device comprising a rubber or other elastic hollow body having a valve or valves controlling the entry and exit of air and so arranged and constructed that when it re-expands after being compressed, it develops sufficient power to do work, e.g. to open a knife switch. According to the invention the switch is actuated by a plunger 5, as shown in the Figure, which compresses a tapered end of the hollow elastic body 2. As the plunger moves down, a rod 6 encountering the bottom of the hollow body opens a valve in the plunger 4 and allows air to escape. In the meantime a knife switch 9 with a quick-action spring 14 has been closed by the engagement with it of a projection 10 on the plunger. When the plunger is released, the body slowly regains its original shape at a rate determined by the rate air enters through the valve and an adjustably porous washer, and a second projection 11 opens the switch. The body is preferably reinforced with longitudinal ribs, Figs. 3 .. 6 (not shown), and in a modification, Fig. 3, the valve is operated by a separate button on top of the plunger 4 instead of by the rod 6. The device may be operated electromagnetically.