baber/WOPTO huggingface dataset:
Patent GB-1440247-A (GB)
Title: Shock absorbers for vehicle bumpers
IPC: F16F9/02
Filed: 1973-06-14
Abstract: 1440247 Bumpers FICHTEL & SACHS AG 14 June 1972 [20 June 1972] 28375/73 Heading B7J [Also in Division F2] A vehicle bumper (not shown) is mounted on a shock absorber, Fig. 1, comprising a cylinder 21, a piston 22 sliding in the cylinder and defining a high pressure liquid chamber 28 and a low pressure chamber 29, ports 211 in the piston closed by a spring biased valve member 212 located in the chamber 29, a gas chamber 210 separated from the chamber 28 by a floating piston 25, and abutment means 217, Fig. 1, or 620, Fig. 4, in the gas chamber which stop the floating piston 25 after it has moved a certain distance. On impact, the initial part h of the piston stroke is accomplished by compression of the gas chamber 210, the valve 212 remaining closed, until the floating piston 25 is stopped by the abutment, preventing further compression. The valve 212 then opens and the remainder of the stroke is accomplished by transfer of liquid from chamber 28 to chamber 29. Thus the damping force-piston stroke characteristic, Fig. 6, shows an increasing force over an initial part h (at most 40%) of the stroke and a constant force F max  over the remainder of the stroke. In Fig. 1, after the piston 22 and floating piston 25 have moved through the distance h, giving a characteristic c 1 , Fig. 6, the floating piston 25 abuts the rigid stop ring 217 and the valve 212 opens to give the constant force F max . In Fig. 3 (not shown) the ring 217 is replaced by an integral step in the cylinder wall, and in Fig. 2 (not shown) the floating piston carries the abutment. In Fig. 4 where the abutment is an elastomeric body 620 the characteristic C 3  for the initial part h is in two stages, the first corresponding to compression of gas alone, the second corresponding to compression of gas and elastomer. In Fig. 5 (not shown) the abutment is a set of cup springs which are always in contact with the floating piston and give characteristic C 4 .
Patent GB-714233-A (GB)
Title: Improvements in or relating to pouring spouts of liquid containers
IPC: B65D25/42
Filed: 1952-11-11
Abstract: 714,233. Spouts for portable containers. AKTIESELSKAPET J. C. MARTENS & CO. Nov. 11, 1952 [Nov. 12, 1951], No. 28390/52. Class 66 A sheet metal drum 1 having a conical neck 2 with its larger end outwards is provided with an outwardly extending spout 8 formed integrally with a collar 6 arranged round the neck. The collar is frusto-conical in shape with its larger end facing upwards. The depth of the collar is less than that of the neck and when it is in the lower position as shown it is possible to apply a sheet metal seal 5 to the container and fold its edges under the rim 3 to (permanently cover the pouring outlet in known manner. When the seal is removed the collar 6 and spout 8 can be lifted to a position surrounding the neck outlet and retained there by the friction between the collar and neck: The upper part of the collar may be formed with a channel 7 to fit round the rim 3 when the spout is in the upper position. The collar is assembled on the neck before the latter is secured to the drum. A temporary closure cap 4 not affected by the positioning of the spout is provided.
Patent GB-884222-A (GB)
Title: Refractory compound bricks and methods of making the same
IPC: F23M5/06
Filed: 1959-08-19
Abstract: 884,222. Moulding refractory bricks. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Aug. 19, 1959 [Aug. 30, 1958], No. 38412/59. Class 87(2). [Also in Group XII] A compound refractory brick (see Group XII) is moulded by placing jacket material on the bottom pressure plate 33a of a mould 33, adding a cylindrical insert 31 filled with refractory, covering with a further layer of jacket material and compressing between plates 33a, 33b to a pressure of at least 1000 kilograms/square cm. The insert takes up the elliptical form shown in Fig. 5. The insert may be initially of rectangular section pressing out to a rhombic section, Figs. 12-14 (not shown), or a number of inserts may be used Figs. 17-19 (not shown).
Patent GB-380624-A (GB)
Title: A combined lamp and clock
IPC: F21V33/00
Filed: 1931-10-13
Abstract: 380,624. Clockwork actuation of switches. HALSTRUP, F., 60, Herrenstrasse, and SEELINGER, E., 45, Belfortsstrasse, both in Freiburg, Baden, Germany. Oct. 13, 1931, No. 28438. [Class 38 (v).] In a combined lamp and alarm clock, the lamp circuit is manually controlled by means of a push 17 on a spring 18 adapted to rotate a ratchet wheel 19, which is mounted on an insulating plate 20 and rotates a switch disc 21 provided with alternate conducting and insulating sectors co-operating with two contacts connected respectively to one of the lamp terminals and a plug coupling 24, the other lamp terminal being connected to the coupling 24 by a wire passing up a central tube 26. For switching. on the lamp when the alarm is released, a rod 31 is moved by means of a pin 30 to engage a collar 35 with a projection on a spindle 37 carrying a lever 38 held by a detent 40 controlled by the alarm mechanism, a spring 32 being thereby stressed and causing a lever 34 to engage a tooth of the ratchet wheel 19. On the release of the detent 40, the rod 31 is returned by the spring and the lever 34 actuates the wheel 19 to close the circuit, the spindle 37 being restored to its normal position by a spring 41. Specifications 2248/86, [Class 75, Lamps &c.], and 263,447, [Class 38 (v), Electric switches &c.], are referred to.
Patent GB-483245-A (GB)
Title: Improvements in and relating to pressure operated electric switch control devices, specially applicable to refrigerating plants
IPC: H01H35/26
Filed: 1936-10-20
Abstract: 483,245. Actuation of switches. HECKMAN, H. C. Oct. 20, 1936, No. 28499. [Class 38 (v)] A thermal or pressure operated switch comprises bellows 4 acting on one arm 23 of a bell-crank lever 24 having a ball or roller bearing on a pin 26, the other arm 25 of the lever being connected by a control spring 29 to an adjusting screw 30a having a knot 31 outside the casing. The lever 24 carries a lever 37 having an adjustable pin 40 which engages a slot 41 in a carrier 42 mounted on ball or roller bearings 42a and which carries a mercury switch 43, which is thus operated in accordance with movements of the bellows. The end plates 5, 17 have a spring 19 mounted in compression between them to augment the resilience of the bellows and to prevent collapse when using sub-atmospheric pressures.
Patent GB-1020010-A (GB)
Title: Method and apparatus system for continuously washing and drying solid combustible materials
Inventor: BRANDT MAHLON WILLIAM
IPC: B03B9/00
Filed: 1963-07-18
Abstract: 1,020,010. Pneumatic separation; wet separation of coal. DORR-OLIVER Inc. July 18, 1963, No. 28511/63. Heading B2H. [Also in Division F4] Ground coal is cleaned in one fluidized bed and dried in another. The fraction of crushed coal below three-quarters of an inch is fed by way of a hopper 10 and screw feed 11, Fig. 2, into a fluidized bed separator 12. The fine fraction below 40 mesh is entrained in the fluidizing air flow and the fraction above 100 mesh is separated out in a cyclone 40. The coarse fraction is drawn from the bed over path 23 and is washed in a plant 24 to be described later. The output from the washing plant is fed over path 39, hopper 65, and screw conveyer 66 to a drying bed 64 in a drier 60. The fine fraction below 100 mesh taken over path 45 from cyclone 40 is separated from its entraining air in a cyclone 44, the fine fraction being delivered to a hopper 53 as a fuel supply to the burner 75, 81 at the base of the drier 60. The entraining air with residual dust is fed over path 57 and via a circular array of entry ports 91 into an intermediate combustion zone 67a of the drier. Tempering air from a blower 73 into the drier through ports 93. Entrained fines from the drier are separated in a cyclone 96 and are collected separately or fed back into the dried coal extracted from the hot bed. The blower 15 for the fluidized bed separator 12 has a branch supplying a control inlet to cyclone 40 whereby the efficiency of the separator may be impaired to increase the quantity of fine coal fed to the burner as fuel. The wet separating stages are shown in Fig. 3 where the raw crushed coal R is screened at 29 to give a ¥ inch throughput for the fluidized bed cleaner 12 the clean output of which is screened at 26 to give a # inch throughput. The overrun of screens 26 and 29 is fed to a heavy medium hydrocyclone 28 the values from which are ground to below 1“ inches before going to the drier 60. The throughput of screen 26 comprising # inch to 48 mesh is washed of silica and clay on a Deister table 33 followed by a filtering of the values in a rotary drum or rotary table 37. The caked output of the filter is sent to the drier 60.
Patent GB-536021-A (GB)
Title: An improved internal combustion engine primarily for use on aeroplanes
IPC: F02B53/00
Filed: 1939-10-25
Abstract: 536,021. Rotary engines. ANDREW, W. R. C. Oct. 25, 1939, No. 28637. Drawings to Specification. [Class 110 (ii)] Pistons of an internal-combustion engine carried on the arms of two spiders traverse an annular working space in alternate long forward and short backward movements. The space is divided into working chambers by partitions which are moved outwards for the passage of the pistons by air compressed by the pistons in approaching the partitions. The spiders comrriunicate their forward motion to the engine shaft through ratchets and the backward movement of each spider is controlled through gear by the forward movement of the other.
Patent GB-1153586-A (GB)
Title: Formation of Induced Electrostatic Latent Images
IPC: G03G13/18
Filed: 1966-06-27
Abstract: 1,153, 586. Electrostatic images. RANK XEROX Ltd. June 27, 1966 [June 28, 1965], No. 28659/ 66. Heading G2H. Electrostatic latent images are induced in a receiving sheet having a resistivity of 10<SP>7</SP> to 10<SP>14</SP> ohm (e.g. paper, cellulose or cellulose acetate) by contacting it with a surface having a latent electrostatic image thereon, and then separating it from the surface whilst maintaining contact between the free surface of the receiving sheet and a conductive member which is held at a fixed bias; the original latent image is not destroyed, and a plurality of images may be prepared therefrom by repeating the process. The latent image formed on the receiving sheet may be developed either during or after the separation. In the particular embodiments described, the initial latent image is formed on a photo-conductive layer (3) having an earthed conductive backing (2) and the free surface of the receiving sheet is either earthed directly Fig. 2 (not shown), or is contacted with a conductive roller (8) or (9) Figs.3 to 5 (not shown), which is earthed or maintained at a potential of up to 100 volts and rolled over the free surface of the receiving sheet during the separation; in Fig. 4, the roller used is a gravure roller having depressions on its surface which are filled with ink by a wick (11) dipping in a reservoir (10), so that the charged areas of the receiving sheet attract ink from the depressions as they are contacted by the roller, thus forming a visible image; in Fig. 5 the development is effected by a magnetic brush (13) bearing a toner which may be maintained at a potential. The latent image may also be developed by other conventional methods, e.g. cascade development, skid development, powder cloud development, liquid development, or touchdown development using a donor sheet as described in Specification 1,060,679. The developed images may be fixed by heat or solvent vapour.
Patent GB-1411744-A (GB)
Title: Apparatus for dc conversion
IPC: H02M3/337
Filed: 1971-06-18
Abstract: 1411744 Automatic voltage control POST OFFICE 14 Sept 1972 [18 June 1971] 28751/71 Heading G3R [Also in Division H2] In a circuit for converting a direct input voltage into an alternating voltage, a multi-vibrator Tr1, Tr2 provides opposing squarewaves the duration of alternate half cycles of which is adjusted by means of transistors Tr3, Tr4 so as to provide oppositely directed pulses of adjustable duration which are fed to a push-pull inverter comprising transistors Tr6 ... Tr11. The voltage at the secondary winding S1, S2 of the output transformer 6 is preferably rectified at D6, D7 and compared by a long-tailed pair of transistors Tr12, Tr13 with a reference voltage across Zener diode D12. The result of the comparison is used to control the conductivity of transistors Tr3, Tr4 and so stabilize the D.C. output at B. A neon indicator 12 is provided. Semi-stabilized outputs are available at 9 and 10 by rectifying the output of auxiliary winding S'1, S'2.
Patent GB-1174561-A (GB)
Title: Improvements in or relating to Control Apparatus
Inventor: GRIFFITHS PETER THOMAS
IPC: G05D23/24
Filed: 1966-02-08
Abstract: 1,174,561. Control systems for heating resistors. SATCHWELL CONTROLS Ltd. 26 Jan., 1967 [8 Feb., 1966; 27 June, 1966], Nos. 5555/66 and 28766/66. Heading H2H. [Also in Division G3] An A.C. conducting electronic switch 41 energizes a load 42 for periods controlled by a resistor 61, which varies the time taken by each pulse of the unsmoothed output of a full wave rectifier bridge 16 to charge a capacitor 37 to a voltage at which a unijunction transistor 39 is switched on to produce a pulse in a transformer 40a-40b controlling the switch 41. The switch 41, which may be a bi-directional triode semi-conductor switch, thus energizes the heater 42 for that fraction of each cycle of the supply voltage which is necessary to produce the desired heating effect. In an arrangement controlling the temperature of a saucepan a thermistor (22, Fig. 2, not shown) is spring loaded against the pan to sense its temperature and is connected in a bridge comprising resistors (24-27), a desired temperature present potentiometer (31), and an unbalance sensing transistor (30). The collector voltage of the transistor (30) controls the conduction of the transistor (34) which charges the capacitor (37), the remainder of the circuit being as in Fig. 6. One arm of the bridge may be shunted by an ambient temperature compensating combination of a fixed resistor (28) and a temperature dependent resistor (29). The arrangement may also control oven temperature. In further alternatives (Figs. 5, 7, not shown), the semi-conductor bidirectional switch 41 is replaced by a full wave rectifier bridge with a silicon controlled rectifier (60) across a diagonal.
Patent GB-303239-A (GB)
Title: Improvements in connection with otter boards
IPC: A01K73/045
Filed: 1927-10-29
Abstract: 303,239. Curzon, C., and Brand & Curzon, Ltd. Oct. 29, 1927. Trawling-gear.-The shoe-plate A, A<1> of an otter board tapers from the rear end to the fore end of the board, and is made of two L-section members of which the depth of the base section a and the width of the vertical section a<4> taper from rear to front ends of the board. The planks D on one side of the otter board are arranged diagonally so as to lie at an angle to those of the other side of the board. Bolts are passed through the straps d<1> at the edges and the straps d<2>, d<3> on the surfaces of the board.
Patent GB-1178984-A (GB)
Title: Improvements in or relating to Hepatic Medicines
IPC: A61K31/44
Filed: 1967-06-22
Abstract: 1,178,984. Hepatic medicines. BRACCO INDUSTRIA CHIMICA. 22 June, 1967 [23 June, 1966], No. 28880/67. Heading A5B. Compositions for the treatment of hepatic disorders comprise an approximately equimolar mixture of 5-formyltetrahydrofolic acid or a salt thereof and a mixture vitamin B 12  preparation consisting of 75% by weight hydroxocobalamin and 25% cyanocobalamine. They may be in forms suitable for oral use and injection including a lyophilised preparation for reconstitution before use and which may also include nicotinamide, D, L-inosine, D, L- methionine and adenine.
Patent GB-1104928-A (GB)
Title: Improvements in electronic mixer and frequency changer circuits
IPC: H03D7/12
Filed: 1965-07-07
Abstract: 1,104,928. Transistor frequency-changing circuits. 7 July, 1965 [9 July, 1964], No. 28891/65. Heading H3T. In a transistor frequency-changing circuit, the signal E1 is applied to the base via tuned transformer L1, and a second signal E2, e.g. local oscillations, via a coupling capacitor C5. The output is, according to the invention, taken from the emitter circuit by way of tuned I.F. transformer LO. The local oscillations may be self-generated by means of a tuned circuit in the collector circuit of the transistor, to which is coupled a secondary winding from which capacitor C5 is fed (Fig. 2, not shown).
Patent GB-504541-A (GB)
Title: Improvements in apparatus for playing in indoor games
IPC: A63B71/06
Filed: 1938-10-06
Abstract: 504,541. Board and card games ; scoring- apparatus. JONES, C. F. Oct. 6, 1938, No. 28987. [Class 132 (ii)] Apparatus for playing a card game akin to lawn-tennis and like games, comprises a board marked to represent a tennis court and numbered, together with separate packs of cards having indications regarding "service", Fig. 2, and " stroke ", Fig. 5, respectively. A player, after declaring a certain type of service, turns up a service card to ascertain its result, and moves a disc representing the ball to the appropriate position on the " court." The return stroke is declared, and its result ascertained in a similar manner. A scoring- device for use with the game is shown in Fig. 9.
Patent GB-513195-A (GB)
Title: Improvements in or relating to electromotors
IPC: H02K9/24
Filed: 1938-10-06
Abstract: 513,195. Centrifugal pumps. AVIGDOR. R. Oct. 6, 1938, No. 28999. [Class 101 (1)] [Also in Group XXXV] A submersible electric motor 2, Fig. 1. driving a liquid-fuel pump is arranged within a closed conduit 11 extending into the liquid and filled with a non-explosive liquid 14 such as oil at a pressure higher than the maximum attainable pressure of the liquid surrounding the conduit and the pump 1 driven by the motor is carried at the lower end of the conduit. The specific gravity of the non-explosive liquid is higher than that of the liquid fuel. Sealing lips 10, 8 are arranged about the motor and pump shaft 7. The pump delivery pipe 6 may be constituted by the annular space between the conduit and a surrounding casing. The assembly of motor, conduit and external casing constitutes a removable unit having a head with separate openings for the fuel delivery, non-explosive oil and for motor leads which pass through the oil. Cooling ribs may be provided 'on the wall of the delivery pipe. The motor 32, Fig. 3, driving a pump 33 is screwed at 34 into a casing 35 connected to a suspension tube 36. The motor casing and the casing 35 have aligned ribs 37, 39 with spaces 38, 40 between them for the non-explosive liquid. The ribs transmit heat from the motor to a metal sleeve 41. An annular space 44 between the sleeve 41 and tube 42 constitutes the delivery pipe for the pump.
Patent GB-956858-A (GB)
Title: Apparatus for removing fumes and waste products from furnace gases
IPC: C21C5/40
Filed: 1961-08-14
Abstract: 956,858. Washing gases. P. MASSJUK. Jan. 25, 1962 [Aug. 14, 1961], No. 29216/61. Heading B1R. An apparatus for washing furnace gases comprises a chamber 2 enclosing closely related, spaced apart, rotatable spheres 17, one or more metal mesh filters 22, and means 23 for spraying the spheres 17 and filters 22 with liquid, the spheres 17 and filters 22 being of non-ferrous metal. Gas to be washed enters at 7 and passes in turn through the spaced spheres 17, a spray device 23 having adjustable horizontal and vertical nozzles 27, 28 on concentric tubular rings 24, 25, a filter 22, two non-ferrous metal funnels 32, 33 each enclosing steam spray devices 37a supplied from a steam generator 13, a second spray device 23, and a second filter 22 to a chimney 1. Each filter 22 has a panel 29 rotatable about a shaft 30 in response to a thermostat 16 on the generator 13, to provide free passage for gas on a rise in gas temperature. The spheres 17 are continuously rotated about shafts 18 by a motor, Fig. 3 (not shown). Washing liquid enters at 14 and sludge is removed at 4.
Patent GB-806904-A (GB)
Title: Improvements in or relating to polymerization of ethylene
IPC: C08F10/00
Filed: 1956-09-26
Abstract: A polymerization catalyst for ethylene consists of two components, (a) a bis cyclopentadienyl metal salt in which the metal is titanium, vanadium, or zirconium, in admixture with (b) an alkyl metal compound in which the metal is selected from Groups Ia, II or III of the Periodic Table.  The cyclopentadienyl radical may contain 1 or 2 alkyl groups containing 1 to 8 carbon atoms. The salt may be of an inorganic acid, e.g. a halide, phosphate, nitrate, sulphate; an organic acid, e.g. acetate; or an alkoxide group.  Metal alkyls specified include compounds of alkali and alkaline earth metals, Mg, Be, Zn, Cd, Al, Ga and In, e.g. amyl sodium, butyl lithium, butyl magnesium chloride, dipropyl aluminium fluoride, and lithium aluminium tetra-octyl.  The molar ratio of compound (b) to (a) is preferably 1 : 1 to 1 : 10.  The polymerization may be effected in the presence of liquid hydrocarbon diluents, and hydrogen may be added which reduces the viscosity of the product.ALSO:Ethylene is polymerized in the presence of a catalyst consisting of two components, (a) a biscyclopentadienyl metal salt in which the metal is Ti, V, or Zr, in admixture with (b) an alkyl metal compound in which the metal is selected from Groups Ia, II, or III of the Periodic Table.  The cyclopentadienyl radical may contain 1 or 2 alkyl groups having 1 to 8 carbon atoms.  The salt may be of an inorganic acid, e.g. halide, nitrate, phosphate, or sulphate; of an organic acid, e.g. acetate; or an alkoxide group.  Metal alkyls specified include compounds of alkali and alkaline earth metals, Mg, Be, Zn, Cd, Al, Ga, or In, e.g. amyl sodium, butyl lithium, butyl magnesium chloride, dipropyl aluminium fluoride, and lithium aluminium tetra-octyl. The molar ratio of compound (b) to compound (a) is preferably 1 : 1 to 1 : 10.  Polymerization may be effected in the presence of liquid hydrocarbon diluents; aliphatic, cycloaliphatic, aromatic and halogenated aromatic hydrocarbons are specified.  A lower molecular weight polymer of reduced viscosity is obtained by adding hydrogen to the reaction mixture.