baber/WOPTO huggingface dataset:
Patent GB-971303-A (GB)
Title: Thermoelectric devices
IPC: H01L35/18
Filed: 1960-12-07
Abstract: 971,303. Semi-conductor devices. MONSANTO CO. Dec. 7, 1960 [Dec. 7, 1959], No. 42076/60. Heading H1K. An element of a thermo-electric device comprises a selenide, telluride or antimonide of copper, silver or mercury in a finely divided form which has been compressed to a pressure at least 500 lb. per square inch and maintained at a temperature of at least 30 C. which temperature is also at least 50 C. below the melting point. The Specification gives figures to show the higher figure of merit of thermo-electric elements prepared in this manner over fused elements. The particles to be compressed and sintered may be obtained by chemical coprecipitation or from a fused solid by grinding or abrasion. Particles should be less than 2500 microns in diameter, a preferred range being from 0.01 to 1000 microns. Pressures from 500 lb. per square inch to over 200,000 1b. per square inch have been found useful. Heating temperatures of from 75 to 500 C. are preferred but the higher pressures enable the lower temperatures to be used. Heating times of from five minutes to twenty-four hours may be used. The thermo-electric properties of the device may be changed by including modifying agents such as metallic selenium in silver selenide but higher concentrations than 10<SP>17</SP> carriers per c.c. are necessary. The material may be produced from a fused material which is powdered, pressed and then sintered. The finely divided material used may be produced by low temperature precipitation employing solutions of nitrogenous reducing agents such as hydrazine, hydroxyl amine and the alkyl and aryl derivatives thereof, such as phenyl hydrazine and their salts, for example the mono- and di-hydrochloride. Details of the preparation of several compounds some with and some without modifying agents are given in the Specification Various compounds referred to in the Specification contain modifiers such as silver, bismuth, gold, selenium, tellurium, manganese, copper, nickel, mercury, lead, cadmium, antimony, thallium, ruthenium, iridium, rhodium, osmium, indium, platinum, palladium, cobalt, tin, arsenic, sulphur and iodine. Thermocouple construction.-The Figure shows a thermocouple consisting of two thermal electric elements 1, 2, at least one of which consists of one of the materials described above separated by a copper member 3 which may cool a transistor or be surrounded by a core 7 which acts to cool a surrounding medium. Members 4, 5 are provided with pipe coils 6, 8 through which a fluid flows to maintain them at a constant temperature.
Patent GB-1468997-A (GB)
Title: Manufactue of baked food products
IPC: A23L5/10
Filed: 1974-09-28
Abstract: 1468997 Cooking foodstuffs P J SAARIO 28 Sept 1974 42267/74 Headings A2A and A2E Foodstuffs e.g. bakery products, meat products, sandwiches and sausages are baked in two stages: (a) the food is moistened by substantially stationary water vapour containing air having a humidity such that condensation occurs on the food -and moisture is absorbed and (b) the food is baked by a flow of hot water vapour containing air. Suitable apparatus comprises an over 2, an air heater 3, a blower 4 for circulating the air, and a motor 5 for moving the trolleys carrying the food. A moisture introduction nozzle 6, a ventilation nozzle 7 and a fresh air intake 8 are also provided. A control unit 1 is provided to control the process. In stage (a) moisture content of the stationary air may be progressively increased by introducing saturated steam and in stage (b) the moisture content may be progressively decreased by venting the moist air and replacing it by fresh air. Total baking time may be 8 to 45 minutes at 100 to 340‹C. The food should initially be at 20 to 60‹C to ensure that it is below the dew point of the stationary air so that condensation takes place. The control unit 1 may be connected to photocells or a timing mechanism, or may be manually controlled.
Patent GB-885304-A (GB)
Title: Seals between cylinder heads and cylinder blocks in internal combustion engines
IPC: F02F11/00
Filed: 1959-12-11
Abstract: 885,304. Cylinders. GOETZEWERKE GOETZE A.G. Dec. 11, 1959 [Dec. 12, 1958], No. 42294/59. Class 7(2). A cylinder head 3 is sealed to a wet liner 1 and to a cylinder body 2 by a spring washer 6 and a flat seal 4. The washer 6 may be of copper and of waved or V-shaped crosssection, and the seal 4 may be of soft packing or corrugated metal.
Patent GB-1114929-A (GB)
Title: Machine for finishing irregularly shaped parts
IPC: B24B9/00
Filed: 1964-10-16
Abstract: 1,114,929. Grinding. J. REID, and S. BUCHAN. 18 Oct., 1965 [16 Oct., 1964], No. 42360/64. Heading B3D. A method of finishing an irregularly-shaped part, such as an artificial tooth, comprises the steps of relatively rotating a workpiece and a finishing tool in contact, and simultaneously urging the finishing tool towards the workpiece with a force that varies as an inverse function of the distance between the centres of rotation of the workpiece and finishing tool. In apparatus for carrying out the method, the tooth is mounted on a holder 28 in the form of a nest having an upper serrated surface mounted on the upper end of a spindle 32 which is journalled in a sleeve 33 and connected by a drive shaft 37 to a relatively slow drive 36 of a gear-box 4 driven by a belt from a pulley 7 of a motor 3. The gear-box also has a high-speed drive 35 connected by a drive shaft 28 to a chuck 31 which carries the finishing tool 30a in the form of a dental type grinding wheel, and is rotatably supported in a sleeve 31a mounted for pivotal movement in a fork 29. An armature 40 is secured to the sleeve 31a and is disposed adjacent an electromagnet 13. The supply to the electromagnet is effected through a rheostat 17 controlled by a knob 17a and the position of the magnet is controlled by a knob 18. The supply to the magnet is also controlled by a switch 5 having additional contacts which control the motor 3. The switch is operated by downward movement of a rod 47 against the force of a spring, the rod being moved by rotation of a bell-crank 42 about a pivot 43. One arm of the crank abuts the rod 47 whereas the other arm engages a lever 41 movable about a pivot 44. The lever is connected by a link 63 to a counter 65 and to the upper end of a spindle 25 vertically slidable in a bush 26 in an arm 27. The lower end of the spindle rotatably supports a nylon pad 29 for retaining the workpiece on the holder. In operation, flash is removed from an artificial tooth by mounting the tooth in the nest 28, and the lever 51 is depressed to cause the pad 29 to press against the workpiece and the switch 5 to start the motor, both the tooth and grinding- wheel being rotated, and to energize the magnet and attract the armature to urge the grinding- wheel against the tooth. As a corner of the tooth is ground, the chuck 31 is moved about its pivot so that the armature moves away from the magnet which thus presses the grinding- wheel against the tooth with less force. The machine may comprise a plurality of holders and tools.
Patent GB-922813-A (GB)
Title: Pump or motor device
IPC: F03C1/38
Filed: 1959-12-15
Abstract: 922,813. Reciprocating pumps. SUNDSTRAND INTERNATIONAL CORPORATION S.A. Dec. 15, 1959 [Jan. 7, 1959], No.42564/59. Class 102(1). [Also in Group XXIX]. A reciprocating pump comprises a rotating cylinder block 16 having two rows of radially arranged cylinders 30, 31 in which the cylinders of each row are in axial alignment. Passages 37 lead from one end face of the block to the cylinders in one'row and are extended by passages 38 to the cylinders in the second row to form inlet and exhaust passages controlled by a valve disc 42 provided with kidney shaped ports which register with similar ports in a port plate 46 communicating with the inlet and exhaust. The valve disc 42 is prevented from rotating by a pin 58 but is free for limited universal movement due to the part spherical face 49 in a seat 50 of the port plate whereby the plane face of the disc remains in contact with the cylinder block. The pistons are reciprocated by a ring 65 mounted in an adjustable outer member by bearing 64 whereby the ring 65 can move axially. The inner surfaces 68, 69 are inclined and preferably curved to contact the spherical ends of the pistons such that if the block should move axially the axial forces acting on the ring, due to the pistons centres the ring relatively to the pistons. In a preferred embodiment the radius of the surfaces 68,69 are 0À750 inches and that of the pistons 0À 5 inches. The cylinder block 16 is mounted for axial movement in bearings 17, 18 and is provided with a plurality of bores 86, preferably in line with cylinders, housing piston members 87 which engage slippers 89. Liquid in the cylinders is fed through passages 97, 96, 95 to a chamber 94 where it acts in conjunction with spring 88 to urge the cylinder block into contact with the valve plate. The eccentric member generally designated 35 is adjustable in accordance with a liquid pressure to vary the stroke of the pistons.
Patent GB-1195460-A (GB)
Title: An Adjustable Vehicle Seat
IPC: B60N/
Filed: 1968-09-10
Abstract: 1,195,460. Resiliently mounted seats. F. BREMSHEY, W. FULLING and H. BREMSHEY [trading as BREMSHEY & CO.]. 10 Sept., 1968 [14 Sept., 1967], No. 42913/68. Heading A4U. A tractor or like seat is supported entirely by a bracket member 7 having six rollers 9, 10, 11 running on three vertical guide tracks 12, 12<SP>1</SP>, 13, 13<SP>1</SP>, on a fixed base plate 2. Downward motion of the member 7 compresses a spring strut 19, whose inclination can be varied to alter its effective spring rate and pre-loading. The strut 19 consists of an outer coil spring 25 and an inner coil spring (26, Fig. 5, not shown) enclosed in a telescopic casing 28, 29. The inner spring (26) is brought into play when the outer spring 25 has been compressed sufficiently for end 30<SP>1</SP> to abut the end 28<SP>1</SP> of the casing. On turning handle 24<SP>1</SP>, spindle nut 23 travels along screw-threaded shaft 24, to alter the inclination of the strut 19, which is indicated by a pointer (31). A damper 14 is connected to the seat through rubber buffers 16.
Patent GB-1396937-A (GB)
Title: Device for determining mass numbers in a mass spectrometer
IPC: H01J49/30
Filed: 1972-09-15
Abstract: 1396937 Measuring magnetic field strength KU LINDEROTH 15 Sept 1972 [15 Sept 1971]  43010/72 Heading G1N The yoke of a mass spectrometer electromagnet includes parts whose separation varies with the magnet field strength and which carries a transducer, e.g. a strain gauge, for measuring the separation and hence the field. In Fig. 3 the field is produced in an air gap 12 between the magnet pole pieces. The upper and lower arms of the yoke terminate in members 13, 14 between which is the transducer 16. Arm 7 is articulated to the member 8 so that the spacing between the members 13, 14 varies with the attraction between the pole pieces. The strain gauge resistance is a linear function of m/e, and can be used to calibrate the spectrometer. The electromagnet may either be the main deflection magnet of the spectrometer, or may be of similar construction. to the main magnet and in parallel or series with it as in Fig. 4. Temperature compensation may be by oil bath cooling or by using a bridge arrangement. The associated circuitry may include phase shifts to compensate for rapid field changes.
Patent GB-1523277-A (GB)
Title: Electric switches
IPC: H01H5/04
Filed: 1975-10-06
Abstract: 1523277 Snap action switches TENBY ELECTRICAL ACCESSORIES Ltd 6 Oct 1975 [4 Oct 1974] 43074/74 Heading H1N An electric switch comprises a beam 17 pivotable between two switching positions, and a pivotable rocker 21 for pivoting the beam 17 via a plunger 23 which is biased into contact with the beam 17 by resilient means (not shown) and which is engaged by a pair of ears 25 on the rocker 21. The beam 17 is pivotably mounted on a terminal 14 and carries a contact for co-operation with a contact mounted on a terminal 15. The plunger 23 is engaged by the ears 25 in a recess in the rocker 21 and has a slot 24 engaging a pin 22 about which the rocker 21 is pivoted whereby the plunger 23 is guided and allowed to move longitudinally relative to the rocker 21 during angular movement of the rocker 21. One position 18 of the beam 17 is determined by a stop surface 19. The switch may alternatively be a single pole two way switch or a double pole switch.
Patent GB-1018380-A (GB)
Title: Improvements in potato harvesters
IPC: A01D19/02
Filed: 1964-10-22
Abstract: 1,018,380. Root-crop harvesters. A. UNDERHAUG [trading as F. A. UNDERHAUGS FABRIK]. Oct. 22, 1964 [Nov. 5, 1963], No. 43185/64. Heading A1F. A tractor-mounted potato-harvester comprises a share 2, and a spinner 3 cooperating with the share to throw excavated crop on to a transverse conveyer 4, the share, spinner and conveyer all being mounted on a frame 5 carried at the front of a tractor 1. The transverse conveyer delivers crop to a lateral conveyer 13, flanked by a platform 29 for operators who remove trash, the lateral conveyer, in turn, delivering to a transverse conveyer 14, also flanked by operators' platforms 30. Operators transfer the potatoes to a second transverse conveyer which delivers to a crate 28 resting on a yoke 21. The yoke and rear transverse conveyers are carried by a frame 20 mounted on hitch-links 18, 19. The power take-off drives the spinner 2 and forward conveyer 4 by a shaft 8 and the rear conveyers by a shaft 16. The lateral conveyer is carried by a cradle 23, 24 allowing it to accommodate to relative movements of the frames 5, 20.
Patent GB-884896-A (GB)
Title: Process and apparatus for utilization of scraps of polystyrene foam
IPC: B29C44/56
Filed: 1959-12-21
Abstract: 884,896. Utilisation of scrap polystyrene foam. KOPPERS CO. Inc. Dec. 21, 1959 [Dec. 27, 1958], No. 43243/59. Class 87(2). Polystyrene foam scraps, comminuted if necessary, are placed under mechanical pressure in a press provided with means for the escape of air, and steam at a pressure of between 1 and 10 atmos., preferably 4 to 5 atmos., is introduced into the press until the polystyrene foam tightly closes the means for escape of air and the pressure in the press has increased to between 0À5 and 1À2 atmos., preferably about 0À7 atmos., above atmospheric, the supply of steam then being interrupted and the material allowed to cool. An example of a suitable press is illustrated in Fig. 2 and has two covers, 2 and 3, constructed as steam chests, the lower of which is urged towards the upper by a plunger 9 after the press has been filled with scraps. Part of the air contained in the press escapes through holes 8 provided in the side walls, these holes being arranged at such a level that, when the press is closed, they are located opposite the centre of the cavity of the press. Steam is then introduced through the pipe lines 4 into the two steam chests, displacing the air still in the press and then flowing out of the press through the holes 8 until the polystyrene foam has been heated sufficiently for all the holes and any other places which do not fit in an air-tight manner to be sealed completely. By means of shut-off devices (not shown) the supply of steam is cut off when the desired pressure (e.g. 0À7 atmos.) is reached. The reduction in the volume of the press cavity is preferably about 50%. Where slabs of less than 30 cm. thickness are required, it is sufficient to supply the steam through the lower cover 3 in which case a simple cover 10 is located at the top, Fig. 4. The holes 8 are then located at the uppermost end of the side walls or else are provided in the cover 10. In certain circumstances, the joint between the cover 10 and the side walls is sufficient for the discharge of air and steam so that the escape holes 8 are unnecessary.
Patent GB-1428135-A (GB)
Title: Filling of gas bottles
IPC: F17C5/02
Filed: 1972-09-19
Abstract: 1428135 Valves KOSAN CRISPLANT AS 12 Sept 1973 [19 Sept 1972] 43296/72 Heading F2V [Also in Division F4]  In a three-way valve 5 of a gas container filling system compressed air is admitted through inlet 66 to move piston 50 and valve spindle 53. Gas inlet 8 debouches in the space between enlarged portion 57 of the spindle and gasket 54 and suction inlet 7 communicates with the inner space around reduced portion 63 of the spindle. When sufficient gas has been admitted to a container, Fig. 1 (not shown), the compressed air supply is stopped, inlet 66 vented to atmosphere and the valve is returned by spring 51 to the position shown, whereby gas valve 52, 54 is closed and suction valve 62, 65 opened so that suction is applied to clear the channels and cavities in the filling system of gas.
Patent GB-1368956-A (GB)
Title: Production of metal particles
IPC: B22F9/24
Filed: 1971-12-10
Abstract: 1368956 Precipitating metals DAVY POWERGAS Ltd 10 Dec 1971 [11 Sept 1970] 43535/70 Heading C7D [Also in Division B2] A process for producing metal particles comprises continuously reducing a metal compound in solution to metal particles, and separating from the mass of particles, those above a predetermined size as product. The solution may be aqueous or organic, and it is preferred to use hydrogen or carbon monoxide gas as the reductant, especially in the presence of ammonia or ammonium ions. Particularly suited are the reductions of copper, cobalt or nickel values in organic solutions. Apparatus. Solution of the metal compound is withdrawn from mixer and extraction unit 1, through heat exchanger 3 and a further heater 4 to an autoclave 6 provided with a cylindrical lower leg 7. Reducing gas is admitted to the autoclave from source 9 and spent liquid is withdrawn at the base of the autoclave. Solution is continuously drawn off from reaction zone 20 of the autoclave through a filter 12, and is passed back into leg 7. The leg operates as a classifier, larger particles dropping to the base and being withdrawn with the spent solution to filter system 15, 16, while smaller particles are recirculated with the current passing in the leg to the reaction zone 20. Spent liquid is returned via heat exchanger 3 to a cooler 18 and the extraction unit 1.
Patent GB-1277495-A (GB)
Title: Improvements in or relating to gyrators
IPC: H03H7/00
Filed: 1969-09-04
Abstract: 1277495 Gyrators; transistor amplifiers TELEFUNKEN PATENTVERWERTUNGS GmbH 4 Sept 1969 [12 Oct 1968] 43859/69 Headings H3T and H3U In a gyrator comprising as first 2-stage D.C. coupled transistor amplifier V1, having an earthfree differential output E1, E2 connected in antiparallel with a second 2-stage D.C. coupled transistor amplifier V2 having an earthfree differential input, instability is obviated by the inclusion of a unity gain common emitter stage T13 connected between the two stages of the amplifier V2. Constant current sources for the various stages are provided by transistors T3, T6, T7, T10, T12.
Patent GB-1151400-A (GB)
Title: Improvements in or relating to Mountings for Wall or Ceiling Light Fittings
IPC: F21V21/02
Filed: 1967-09-26
Abstract: 1,151,400. Washers; grommets. TRILUXLENZE K.G. 26 Sept., 1967 [3 Nov., 1966], No. 43878/67. Heading F2H. [Also in Division F4] A spacing member 18 made of plastics material comprises a peripheral groove 16, and flange 18a and tapered side-walls 17 to opposite sides of the groove. A screw or bolt passing through the central bore 19 serves to hold a sheet-metal member having a hole engaging the groove 16 at a predetermined spacing from a wall or ceiling to which the screw or bolt is affixed.
Patent GB-1240358-A (GB)
Title: Polyurethanes
Inventor: LEDERER SEYMOUR JERRALD
IPC: C08G18/22
Filed: 1968-09-16
Abstract: 1,240,358. Polyurethanes. MERCK & CO. Inc. 16 Sept., 1968 [20 Sept., 1967], No. 43878/68. Heading C3R. Polyurethanes are prepared by reacting an organic polyisocyanate with an organic polyol in the presence of a catalytic amount of phenyl mercuric p-fluorobenzoate, phenyl mercuric piodobenzoate, a phenyl mercuric m - halobenzoate, a chlorophenyl mercuric propionate, a bromophenyl mercuric propionate, a fluorophenyl mercuric propionate, an iodophenyl mercuric propionate, p-bromophenyl mercuric acetate, p-fluorophenyl mercuric acetate, piodophenyl mercuric acetate, phenyl mercuric dichloroacetate, phenyl mercuric dibromoacetate, phenyl mercuric difluoroacetate, phenyl mercuric bromoacetate, phenyl mercuric fluoroacetate or phenyl mercuric iodoacetate. Conventional polyisocyanates and polyethers or polyesters may be used to form the polyurethane. Fillers and pigments may be included in the reaction mixture. Reference has been directed by the Comptroller to Specifications 1,128,438, 1,163,225 and 1,154,055.
Patent GB-1123066-A (GB)
Title: Method of and means for coiling or wrapping tape or the like round articles
IPC: B65B51/06
Filed: 1965-10-19
Abstract: 1,123,066. Covering cores by winding. applying adhesive tapes. J. K. THOMPSON. 18 Jan., 1967 [19 Oct., 1965], No. 44126/65. Headings B8F and B8G. Fig. 1 shows two diametrically positioned jigs A, B on a table C. An object 1 is placed on jig A and the table C is rotated by 180 degrees to the setting shown in Fig. 2. At this stage an object 2 is placed on jig B and a tape is applied to object 1 as shown. The table C is then rotated by a further 180 degrees to cause the tape to extend between the two objects 1, 2 as shown in Fig. 3. In Fig. 4 a knife D and buffing finger cuts through the tape between the objects 1, 2 and presses the cut ends against the objects 1, 2 as shown. The tape on object 1 now overlaps itself. The jigs may be geared for rotation so that a greater degree of overlap of the tape take place. Figs. 6 to 8 (not shown) illustrate a hand operated device for causing the table C to be rotated in correct step-by-step synchronism with the reciprocation of the knife D (27). Figs 9 to 13 (not shown) illustrate a modified device in which the jigs A, B are replaced by automatically operated gripping jaws (31, 32).
Patent GB-1438831-A (GB)
Title: Process for the manufacture of consolidated shaped structures of cellulose hydrate
IPC: A22C13/00
Filed: 1973-09-21
Abstract: 1438831 Cross-linked viscose films HOECHST AG 21 Sept 1973 [23 Sept 1972] 44354/73 Heading B5B [Also in Division C3] Viscose is formed into tubular films by extrusion into a precipitation bath and is then regenerated and then washed with water. Whilst still in the gel state the tube is treated for from 10 seconds to 20 minutes with an aqueous liquid of pH below 7 containing at least one plasticizer, a cross-linking agent comprising at least one cyclic urea having at least two N-methylol groups and at least one cross-linking catalyst. The tube is then dried to a residual water content of from 8 to 12% by weight and then heated at a temperature of from 100‹ to 150‹ C. for from 30 seconds to 20 minutes. The catalyst may be an acid or a salt, preferably a mixture of one of each is used.
Patent GB-1083558-A (GB)
Title: Copolymers of 2,3-dichlorobutadiene-1,3 and ª‡-haloacrylonitrile
IPC: C08F236/16
Filed: 1964-10-30
Abstract: A copolymer comprises either alpha-chloroacrylonitrile or alpha-bromoacrylonitrile and 2,3-dichlorobutadiene-1,3; the copolymer being elastomeric when it comprises 20-60% of the acrylonitrile and resinous with 10-20 or 60-90% thereof.  The copolymerization may take place in solution or suspension in the presence of a free-radical-generating catalyst in the absence of oxygen at 0-100 DEG  C.  Adhesive compositions comprise 10 to 90 parts of the copolymer comprising 10-70% of the acrylonitrile and 90 to 10 parts of a film-forming resin, e.g. chlorinated natural rubber, chlorinated polypropylene and vinyl chloride-vinylidene chloride copolymer.  The compositions may also contain a solvent, e.g. an aromatic hydrocarbon or chlorinated hydrocarbon, an acid stabilizer, e.g. dibasic lead fumarate or phosphite or tribasic lead sulphate, a curing agent e.g. para-quinone-dioxime, 1,3-bis-(2-benzo-thiazolylmercaptomethyl)-urea, benzothiazolyl-disulphide, 4,41-dithiodimorpholine or dinitrosobenzene, fillers, extenders and colouring agents, e.g. carbon black and metallic oxides.