baber/WOPTO huggingface dataset:
Patent GB-1176786-A (GB)
Title: Transistor Circuit Arrangements.
IPC: H03F3/45
Filed: 1968-04-05
Abstract: 1,176,786. Semi-conductor integrated circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 April, 1968 [8 April, 1967], No. 16541/68. Heading H1K. [Also in Division H3] The coupling between two transistors 1, 2, Fig. 1 (not shown), an amplifier consists of two series-connected resistors (3, 4) across the second (4) of which the emitter-base junction of a further transistor (5) is connected whose collector is taken directly to the supply, the arrangement providing a low impedance A.C. coupling while limiting D.C. flow between the stages. The coupling is incorporated in a pushpull amplifier for a T.V. sound channel I.F. stage, an identical coupling circuit 3<SP>1</SP>, 4<SP>1</SP>, 5<SP>1</SP> also being included (Fig. 2, not shown). The coupling is formed as an integrated circuit, Figs. 3, 4, in which an N-type region 31 formed in a P-type block 32 has the resistors (3, 4) formed therein as P-type regions 35, 36; the base of transistor 5 as a P-type region 34; and the emitter and collector thereof as an N-type region 33, and the island 31 itself, respectively. Interconnections 45, 46, 47 are formed on an insulating layer 38 and connected appropriately through apertures therein at 39 to 44.
Patent GB-697694-A (GB)
Title: Valve arrangement in air blast electric circuit breakers
IPC: H01H33/32
Filed: 1951-07-13
Abstract: 697,694. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 13, 1951 [Aug. 5, 1950], No. 16637/51. Class 38(v) A blast valve 2 for an air-blast switch is fully opened by a piston 5 to provide an adequate blast for arc-extinction and is then partly closed by a larger piston 9 to reduce the supply of compressed air to a level sufficient only for voltage isolation purposes. In operation, compressed-air is supplied through a pipe 7 to a cylinder 6 to drive the piston 5 to the left against the bias of a spring 8 to fully open the blast valve 2. At the same time, air from the cylinder 6 closes a valve 15 to shut off the vent from the space 10 to the left of the piston 9. When the valve 2 is fully open, air flows through a small aperture 11 and a passage 12, past a spring-loaded valve 14 into the space 10 where it acts on and moves the piston 9 until the piston abuts a shoulder 13. This movement of the piston 9 moves the piston 5 back to partly close the valve 2. When the supply of air to the cylinder 6 is interrupted, the valve 15 opens to vent the space 10 and the pistons 9 and 5 return to their original positions, the valve 2 being closed. Reference has been directed by the Comptroller to Specification 583,200.
Patent GB-154954-A (GB)
Title: Improvements in spiles, spigots, and the like for casks
IPC: B65D51/16
Filed: 1920-01-03
Abstract: 154,954. Southcombe, J. E. Jan. 3, 1920. Vent-pegs. - A tubular wooden vent-peg 1 has at the top a hollow chamber containing filtering-material 3, such as cotton wool impregnated with sodium salicylate and dried. A spring lid may be provided at this end of the peg. The lower end of the peg has a metal tube 2 to fit in the venthole.
Patent GB-388627-A (GB)
Title: Arrangement for removing of solid or liquid particles from gases or vapours
IPC: B01D45/02
Filed: 1932-06-13
Abstract: 388,627. Removal of solid or liquid particles from gas or vapours. HABER, E., 20, Winklerstrasse, Grunewald, Berlin. June 13, 1932, No. 16669. Convention date, June 12, 1931. [Class 8 (ii).] For removing solid or liquid particles from gases or vapours which are passed through a conduit to subdivide into two-part flows, a conduit for conveying and dividing the medium has apertures one behind the other in the longitudinal direction uniformly distributed over the circumference, the greater part of the medium being deflected in an outward direction in cleaned form through the apertures whereas the solid or liquid particles are carried on by the remaining quantity of medium in the direction of the main conduit. The gases to be cleaned pass in the direction 2 along a conduit 1 and the major part passes away through apertures 4 in the direction of the arrow 5 whilst the lesser part taking with it foreign matter passes in the direction 7 at the outlet end 6 of the conduit. The conduit 12 may be made up of concentric cones 14 thus providing the circumferential apertures 17. The diameter of the conduit containing the apertures may be constant or of diminishing value. Instead of frusta of cones, regular hexagonal or pyramidal-sided members may be used. For the purpose of building up a conduit the frusta 51 may be positioned by side-plates 52, the sideplates being held together by a ring 59 at the smaller end and secured by lugs 55 to the main conduit at the larger end. In an alternative construction the conduit is made up of a continuous spiral member 71 of reducing diameter, the upper end 75 of which is adjustable by a screw and nut mechanism 84, whereby the sizes of the apertures 87 can be adjusted. The Specification as open to inspection under Sect. 91 comprises also an arrangement whereby the gases to be purified enter a closed-ended perforated conduit from the outside. This subject-matter does not appear in the Specification as accepted.
Patent GB-497341-A (GB)
Title: Improvements in or relating to vibratory commutator switching devices for convertingdirect into alternating current
IPC: H02M7/62
Filed: 1937-06-16
Abstract: 497,341. Converting. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 16, 1937, No. 16708. Convention date, June 16, 1936. [Class 38 (ii)] An arrangement for converting D.C. into A.C. for energizing, for example, A.C. wireless receivers, comprises a vibratory reversing switch 7 associated with a winding 24 which may be the primary of the mains transformer of a wireless receiver. The vibratory member is actuated by two coils 13, 14 connected so as to be shorted when the reversing switch is in one of its extreme positions, and energized in parallel from the D.C. supply 19, 20 when the switch is in its other extreme position. A condenser 33 in series with a current limiting resistance 34 is connected as shown to reduce sparking at the switch contacts. Fig. 3 shows an arrangement in which the mains transformer of a wireless receiver is adapted for operation with either D.C. or A.C. mains, a part of the primary winding 38 being associated with a vibrating reversing switch 35 when D.C. is available at 36, and the whole of the primary being utilized when A.C. is available at 41. Specification 17346/12, [Class 38 (ii)], is referred to.
Patent GB-209679-A (GB)
Title: Combined road-grip and non-skid shoe for mechanically-propelled vehicles
IPC: B60C11/16
Filed: 1923-06-28
Abstract: 209,679. Coxhead, W., and Tilleard, W. B. June 28, 1923. No Patent granted (Sealing fee not paid). Spring wheels.-Twin elastic tyres 2, 3 are fitted with spaced tread plates 4 each formed with a boss 16 adapted to slide in a socket G screwed through the wheel-rim 1. A sleeve 8 riveted within the boss 16 has its inner end tapped to receive a bolt 12, a coiled spring 11 bearing against a washer 13 and the inner end of the socket 6 to maintain the cross-arms 15 of the tread plates in contact with the tyres. The sleeve 8 is squared at its passage through the end or the socket 6 so that the tread plates may be reversed to prevent uneven wear of the tyres.
Patent GB-111343-A (GB)
Title: Improvements in Means and Apparatus for Automatically rendering Defective Telegraphic Signals Uniform and for Storing them up preparatory to Transmission.
IPC: H04L13/08
Filed: 1916-11-24
Abstract: 111,343. Eastern Telegraph Co., and Fraser, A. Nov. 24, 1916. Controllers, actuating - mechanism for. - A motor k used in a telegraph receiving system is driven at a speed determined by the position of a brush 63 which engages a collar 58 carried by a centrifugal device 54 of known construction. When the motor is at rest, contact between the parts 58, 63 shortcircuits a resistance 62, but when the speed reaches the determined limit, the collar disengages the brush 63, throwing the resistance into circuit. The position of the brush can be varied to ensure synchronism by means controlled by the incoming signals.
Patent GB-804351-A (GB)
Title: Improvements in or relating to the control of electromagnets
IPC: H01F7/18
Filed: 1955-06-13
Abstract: 804,351. Switching systems for electromagnets. IGRANIC ELECTRIC CO., Ltd. June 13, 1955 [June 23, 1954], No. 16925/55. Class 38 (4). The working cycle of a lifting magnet 10 is initiated by moving switch 34 to the " lift " position whereby contactor 12 is energized to complete the circuit to the operating-coil of the magnet. The contact or 12 also lifts a contactor 24 by means of a mechanical connection 44. When switch 34 is moved to the " drop " position, the contactor 12 is de-energized to provide reverse energization of the magnet 10 through resistors 36, 40, which reduce the tune constant of the reverse energization circuit. The magnet current is first reduced to zero and then begins to increase in the reverse direction to oppose residual magnetism. Contactor 24 is held lifted by coil 26 which is connected in series with resistor 38 across the terminals of magnet 10. When the magnet voltage is reduced to a selected value, and while the voltage is decreasing at a rapid rate before the residual magnetism has been entirely overcome, the contactor 24 drops to interrupt the power supply to the magnet, and the remaining energy is dissipated in resistor 42.
Patent GB-258947-A (GB)
Title: Improvements in concrete block mold boxes
IPC: B28B7/08
Filed: 1925-07-01
Abstract: 258,947. Eaton, R. A. July 1, 1925. Moulds. - Relates to a mould-box which can be adapted for making blocks of different kinds and sizes and for making a number of separate blocks. The box is of the type comprising pivoted end walls 12, 13 and front wall 14 which can be opened out flat as shown in Fig. 8. For making a number of separate blocks, a base 1'J with vertical partitions 20 is attached to the fixed base 2 of the mould by latches 21, the partitions 20 being arranged in pairs spaced apart at A to receive a partition plate 26, Figs. 5 and 9. The plate 26 is provided with lugs 31 to rest on the end walls and with a strap 28 on each side with notches 29 to rest on the partitions 20. A false bottom 23, slotted to receive the partitions 20 is secured to the front wall 14. When the blocks have been formed in the mould, the plate 26 is withdrawn and the space filled with sand. On opening the mould about its hinges, the blocks are withdrawn from between the partitions 20 by the false bottom 23 and rest in two layers, separated by sand, on the front wall 14. For making single blocks of different heights, a bottom plate is supported on lugs 35 on the end walls 12, 13, or on packing strips. The mould-box is shown in Fig. 1 as applied to a plunger-type machine, the rear wall of the mould box being provided with various filling pieces 8 to form apertures for a variety of plungers.
Patent GB-1275523-A (GB)
Title: Corona discharge plastics treater apparatus
IPC: H02M7/523
Filed: 1970-04-09
Abstract: 1275523 Inverting PILLAR CORP 9 April 1970 [14 April 1969] 17010/70 Heading H2F [Also in Division H1] Corona discharge plastics treating apparatus comprises means 14 positioning the plastics to be treated relative to an electrode 10 which is fed by a power supply circuit including a resonant circuit 44, 46 connected to the junction between two rectifiers 24, 26 connected in series across a D.C. source 22, a triggering means 28 for alternately rendering the rectifiers conductive at a frequency approximating that of the resonant circuit, each rectifier 24, 26 having a saturable non-linear inductance 34, 36 in series therewith, and a feed-back network 32 for re-  turning power to the source 22. The controller 28 includes a variable frequency oscillator enabling a variable voltage in a frequency range of 1 to 50 kHz to be supplied to the electrode 10. Modified circuits (Figs. 5 and 6, not shown) include additional components to provide voltage or current doubling.
Patent GB-996984-A (GB)
Title: Improvements in or relating to the extraction of edible proteins from oil-seed residues
IPC: A23J1/14
Filed: 1962-05-04
Abstract: In a process for obtaining edible proteins from an oil-mill residue such as meal or cake remaining after oil has been extracted and/or expressed from cottonseeds, soyabeans, groundnuts, coconut or palm nut kernels, the residue <PICT:0996984/C3/1> is mixed with an aqueous suspension LA1 and/or part of an aqueous solution LT2 (see below) to form a mash M, which may be allowed to swell, subjected to lactic fermentation, vacuum-concentrated and ground.  The mash is separated, at T1, into fibrous material FT1 and protein milk ET1 which is resolved, at T2, into a protein concentrate ET2, containing, for example, between 200 and 300 g. proteins per litre and a solution LT2 containing starch and sugars.  The protein concentrate ET2 is washed, at A2, with a countercurrent flow of water W, to which an electrolyte such as common salt, Glauber's salt of sodium acetate may be added, to yield a protein fraction E, e.g. concentrated protein milk, from which edible, e.g. purified and dried, proteins may be isolated. The weight ratio of residue to water W is between 1 : 1.5 and 1 : 20, preferably between 1 : 3 and 1 : 7. The washings, in the form of a solution LA2, are passed, at A1 in countercurrent flow, through the fibrous material FT1 to yield washed fibres F and the aqueous suspension LA1, which may contain between 30 and 50 g. of proteins per litre and may be fed to separation T1 when part of the solution LT2 is used alone to form the mash M.  If the initial residue contains a solvent such as benzene or hexane, this may be removed by the vacuum-distillation of the mash or the residue mixed with water, e.g. at a temperature not exceeding 60 DEG  C.
Patent GB-1186592-A (GB)
Title: Improvements in Dip Forming Apparatus and method
IPC: B22D11/00
Filed: 1967-04-14
Abstract: 1,186,592. Coating by hot dipping. GENERAL ELECTRIC CO. April 14, 1967 [May 16, 1966], No.17258/67. Heading C7F. Molten metal, e.g. copper or steel for solidifying on a rod 10<SP>1</SP> of e.g. copper or steel and which passes up through a graphite crucible 12<SP>1</SP>, flows from an inlet 24<SP>1</SP> down around an annular baffle 30, to be heated by an induction coil 22<SP>1</SP> via the crucible wall, before passing through radial slots 34 up around the rod 10<SP>1</SP>. The rod passes from a vacuum through a molybdenum nozzle 16<SP>1</SP> into the crucible. The baffle 30 may be non-concentric, e.g. if the metal is cast on to sheet or other stock of irregular cross-section.
Patent GB-785726-A (GB)
Title: Improvements in or relating to foundry core materials
Inventor: PARKES ERIC
IPC: B22C1/24
Filed: 1955-06-15
Abstract: 785,726. Core-materials. FORDATH ENGINEERING CO., Ltd. May 22, 1956 [June 15, 1955], No. 17262/55. Class 83 (1). A core-material comprises 1.5-2.5 per cent by weight of an oil binder, 0.02-0.2 per cent by weight of calcium hypochlorite, and a cold dry sand. The calcium hypochlorite may be mixed with 25-75 per cent of its weight of a fine inert powder, such as silica flour. A suitable oil binder comprises a blend of raw tung or oiticica oil, air-blown linseed oil, cobalt naphthenate and lead naphthenate, the two naphthenates forming approximately 3 per cent by weight of the oil binder, and the tung oil being present in the proportion of 10-60 per cent by weight of the oil binder. The use of sodium perborate, perchlorate and percarbonate is referred to in the Provisional Specification as an alternative to calcium hypochlorite.
Patent GB-925521-A (GB)
Title: Improvements in or relating to electric discharge tubes and conductive wall coatingstherefor
IPC: H01J19/00
Filed: 1959-05-21
Abstract: 925,521. Discharge tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 21, 1959 [May 24, 1958], No. 17319/59. Class 39 (1). An electric discharge tube, e.g. a cathode-ray tube, is provided with a graphite-containing conductive wall coating which also contains a filler consisting of zinc oxide and a silicate, phosphate or borate as adhesive. The coating is such that its application does not involve heating to a temperature that would damage a fluorescent screen. A coating containing potassium silicate as adhesive and a comparatively small amount of zinc oxide as filler is preferred. Specific examples are given. The coating may be prepared as a graphite suspension by grinding the constituents together in water in a ball mill for 20 to 30 hours and then diluting the ground mixture with deionized water until the suspension is brushable. A water-soluble organic protective colloid such as dextrin may be added to the suspension. Specification 698,856 is referred to.
Patent GB-782114-A (GB)
Title: Improvements to container-dispensers for adhesives or other liquids or pastes
IPC: B05C17/00
Filed: 1954-06-12
Abstract: 782,114. Dispensing stoppers. HEYWOOD, H. F. June 13, 1955 [June 12, 1954; July 8, 1954], Nos. 17353/54 and 19987/54. Class 125(3). A container 1 for dispensing liquids, pastes, adhesives &c., has a nozzle 2 attached by screwthread and with a frusto-conical tip 3 and aperture 5, a plunger 6 with a frusto-conical part 9 and a frusto-conical tip 11 and flat end 12 being located therein and urged by a spring 13, located between the container base and a flange 8, to contact the inner wall 4 of the nozzle and close the aperture. The end 12 of the plunger is pressed on the surface to which liquid is to be applied and the plunger moves inward to provide an annular discharge channel between it and the nozzle wall. The tip of the nozzle acts as a scraper and removes coagulated liquid from the stem 10 as it is pushed inward.
Patent GB-842865-A (GB)
Title: Improvements in and relating to the control of electrically-driven machine tools
Inventor: CHATTERTON GEORGE
IPC: H02P5/50
Filed: 1956-06-05
Abstract: 842,865. Control of several A .C. motors. CRAVEN BROS. (MANCHESTER) Ltd. Sept. 28, 1956 [June 6, 1956], No. 17445/56. Class. 38 (3). [Also in Group XXII] The table 1 of a boring mill is driven by a main motor 2 through a train of gears 3, a power-type selsyn transmitter 4 being mechanically coupled to the table through gearing 5. The secondary winding of the transmitter is connected to the secondary windings of selsyn power receivers 6, 7, which drive the machine saddles through gear trains 8 and 9 respectively. The primary windings of the machines 4, 6 and 7 are supplied from a source of A.C. The speed of the table may be changed by varying the speed of the main motor and/or by adjusting the ratio of the gear train 3. The gear trains 5, 8 and 9 may also have variable ratios. In another arrangement, the selsyn system is applied to a machine for cutting screw threads, the main motor being of the reversible type, and the synchronizing connections being maintained during repeated forward and return strokes of the cutting tool. The system may be used in connection with lathes and other machine tools.
Patent GB-1342425-A (GB)
Title: Coils for stators or rotors
IPC: H01B3/04
Filed: 1971-05-27
Abstract: 1342425 Polyester impregnating resins ALLMANNA SVENSKA ELEKTRISKA AB 27 May 1971 [5 June 1970] 17464/71 Heading C3P [Also in Division H2] An impregnating resin comprises 40% by weight diallyl phthalate, 0À75-1% benzoyl peroxide and the remainder an unsaturated polyester resin comprising adipic, maleic (and possibly phthalic) acids and ethylene glycol. Another impregnating resin comprises 30% monostyrene, 0À5% benzoyl peroxide and the remainder a polyester resin comprising fumaric and phthalic acids and propylene glycol.
Patent GB-794158-A (GB)
Title: Preparation of steroid compounds
IPC: C12P33/00
Filed: 1956-06-07
Abstract: 9(11)- or 14(15)-Steroid epoxides are obtained by fermenting a steroid compound containing an isolated double bond with an oxygenating organism capable of introducing an axial hydroxyl group at the site of the unsaturation.  The fermentation may be effected (1) in shake flasks with the steroid added after growth was established; (2) by submerged aerated fermentation with the steroid added after growth was established; (3) as in (2) but removing the mycelium and resuspending in water.  In examples: (1) D 4 - 14a ,15a - epoxidopregnene - 17a ,21 - diol - 3,20 - dione and D 4 - 14a ,15a - epoxidopregnene - 11b ,17a ,21 - triol - 3,20 - dione are obtained using Curvularia lunata; (2) D 4-9b ,11b  - epoxidopregnene - 17a ,21 - diol - 3,20 - dione is obtained as in (1); (3) 9,11b -epoxide compound S is obtained using C. lunata; (4) D 4 - 14a ,15a  - epoxidopregnene - 17a ,21 - diol - 3,20-dione is obtained using Helicostylum piriforme; (5) D 4 - 14a ,15a  - epoxidopregnene - 17a ,21-diol-3,20-dione is obtained using Mucor parasiticus; (6) D 4 - 14a ,15a  - epoxidopregnene-11b ,17a ,21 triol-3,20-dione is obtained using Cunninghamella blakesleeana; (7) epoxido compound F, D 4-14a ,15a -epoxido-pregnene17a ,21-diol-3,20-dione, and D 4-9b ,11b -epoxido pregnene - 17a ,21 - diol - 3,20 - dione are used using the micro-organism as in (6); (8) D 4-14a ,15a  - epoxidopregnene - 17a ,21 - diol - 3,20 - dione is obtained using Phycomyces blakesleeanus; (9) D 4-14a ,15a -epoxidopregnene-17a ,21-diol-3,20-dione is obtained using Mucor griseocyanus; and (10) as in (2) but using C. brachysporia.
Patent GB-453620-A (GB)
Title: Improvements in and relating to portable wireless receiving sets
IPC: H04B1/08
Filed: 1935-06-19
Abstract: 453,620. Wireless receiving sets. HIGH VACUUM VALVE CO., Ltd., 113, Farringdon Road, London, and SAYERS, D. W., 26, Hane, Beckingham, Kent. June 19, 1935, No. 17609. [Class 40 (v)] A portable wireless receiver comprises a loudspeaker 8 and frame aerials 9 and 10, one for each waveband, mounted in channels in the receiver casing, the receiving apparatus being arranged as a unitary chassis 12 beneath the top of the case with the valves in an inverted position while the high tension battery 24 is provided with three contact springs 25 co-operating with contact studs 25<1>, 261, 271 when in position in the casing ; the accumulator may have similar contacts. The frame aerial and tuning inductances are tuned by the condensers 13, 14 which are operated by concentrically arranged control spindles between the knobs of which there is arranged a lost-motion device comprising a slot in one knob and a co-operating pin on the other knob whereby each may be slightly adjusted separately.
Patent GB-1299438-A (GB)
Title: Improvements in and relating to push-pull transmissions
Inventor: HAWTREE GEORGE
IPC: F16C1/20
Filed: 1969-04-03
Abstract: 1299438 Bowden mechanisms BOWDEN CONTROLS Ltd 3 April 1970 [3 April 1969] 17624/69 Heading F2K In the manufacture of a Bowden mechanism comprising a central strip 2 movable longitudinally between two rows of caged balls 3 which roll in tracks 5 in a conduit 1, the conduit is contracted over its whole length after assembly of the mechanism to ensure firm rolling contact between the balls 3 and the strip 2 and tracks 5. The conduit may be of sealed stainless steel flexible tubing and the contraction may be effected by progressive rotary swaging.