baber/WOPTO huggingface dataset:
Patent GB-769182-A (GB)
Title: Improvements in braking systems for motor vehicles
IPC: F16D65/827
Filed: 1955-05-24
Abstract: 769,182. Cooling brakes. FARKAS, P. May 24, 1955 [May 25, 1954], No. 14983/55. Classes 79(3) and 79(5). [Also in Group XXXIV] The brake drums on a motor vehicle are cooled by air driven through tubes 37, 38, 39 and 40 to individual wheels by means of fans 26 automatically brought into operation when the brakes are applied in the normal manner by simultaneous operation of a Bowden cable mechanism 49, 50 which by pulling inwardly wedge members 47 and 48 acts through pulleys 34 to cause relative axial movement of shafts 30 ned 31 in tubes 22 and 23 so that an annular ammber 12 rotating with the vehicle shaft 6 is gripped between pulleys 35 and 36 and the fans are thus rotated to drive air to the brakes. In a modification, the fans are mounted on a shaft disposed transversely of the vehicle and driven from the torque shaft through an endless screw and suitable clutch.
Patent GB-450277-A (GB)
Title: Improvements relating to seals or joints for cesspits and like chambers for drainage and sewage systems
IPC: E02D29/12
Filed: 1935-05-23
Abstract: 450,277. Pipe joints. NORMAN, J. W. E., Woodlands, Challock, Kent. May 23, 1935, No. 15043. [Class 99 (i)] [See also Groups I and X] In cesspits, intercepting, inspection, and like vertical chambers formed of pre - cast concrete sections, the joints are formed by means of complementary stepped interlocking faces formed on abutting top and bottom ends of the sections and an internal sealing-ring is provided at the joint line between the sections ; the arrangement is such that the sealing-ring groove is disposed symmetrically about the joint line between adjacent sections, and the upper and lower walls of the groove are shaped to provide keying surfaces for the sealing-ring. The interlocking faces may be formed as shown in Figs. 2 or 3 and the groove 8 may be undercut as shown or have halfround-annular channels in opposed faces.
Patent GB-768343-A (GB)
Title: Chlorinated phenols of high bactericidal activity
Filed: 1951-06-25
Abstract: The invention comprises dichloro-3-methyl-5-ethyl phenols such as the 2 : 4- and 6 : 4-dichloro-3-methyl-5-ethyl phenols and comprises also the process for their production by fractionating a coal tar cut, preferably the product of a low temperature carbonization process, to give a fraction boiling in the range 233 DEG  to 237 DEG  C. and having a mid-boiling point within the range 236 DEG  to 236.5 DEG  C. and either cooling and separating 3-methyl-5-ethyl phenol as a solid of melting point 54 DEG  C. which may be recrystallized from a hydrocarbon solvent and then chlorinated, or by directly chlorinating the fractionated coal tar cut of boiling range 233-237 DEG  C. and subjecting the product to fractionation and/or crystallization to give two products of melting points 51 DEG  and 56 DEG  C.  The chlorination is preferably carried out with sulphuryl chloride at a temperature of 50 DEG  to 65 DEG  C. and the product is preferably recrystallized from petroleum ether.  In examples: (1) a cresylic acid of boiling range 233 DEG -237 DEG  C. is fractionated to give a product having a 50 per cent boiling point between 236 DEG  and 236.5 DEG  C. containing about 30 per cent of 3-methyl-5-ethyl phenol, this product is chlorinated with sulphuryl chloride, the product is fractionally distilled under reduced pressure and recrystallized from petroleum ether to give 2 : 4 - dichloro - 3 - methyl - 5 - ethyl phenol and 4 : 6 - dichloro - 3 - methyl - 5 - ethyl phenol; and (2) the above intermediate product containing about 30 per cent of 3-methyl-5-ethyl phenol is centrifuged and cooled, the separated solids are recrystallized from petroleum ether to give 3-methyl-5-ethyl phenol of melting point 54 DEG  C. which is chlorinated with sulphuryl chloride recrystallized from petroleum ether and fractionally distilled to give the dichloro-3-methyl-5-ethyl phenols.  Specification 591,273, [Group IV], is referred to.ALSO:A bactericidal or germicidal composition comprises a dichloro - 3 - methyl - 5 - ethyl phenol, e.g. 2 : 4 - dichloro - 3 - methyl - 5 - ethyl phenol and 6 : 4 - dichloro - 3 - methyl - 5 - ethyl phenol, and a diluent, suitably in the form of a solution, suspension, dispersion or mixture.  An example describes compositions comprising a 2 : 4 - or 4 : 6 - dichloro - 3 - methyl - 5 - ethyl - phenol, terpinolene, aqueous castor oil soap solution, industrial methylated spirits and water.  Specification 591,273 is referred to.
Patent GB-1186382-A (GB)
Title: Differential By-Pass Valve
IPC: F16K1/30
Filed: 1967-04-03
Abstract: 1,186,382. Regulating pumps. BASTIANBLESSING CO. April 3, 1967 [April 22, 1966], No. 15091/67. Heading F1A. [Also in Division G3] A system for pumping liquefied gas from a supply tank 10, Fig.1, e.g. a tanker vehicle, to a receiving tank 26 comprises a high-volume, positive-displacement pump 14 driven by an engine 20, e.g. the vehicle engine, over-loading of the pump due to excessive delivery pressure being prevented by a by-pass valve 36 between the pump delivery line 22 and the supply tank 10, the valve sensing the pressure differential between the delivery line and the supply tank, and opening when the differential exceeds a predetermined, adjustable value. The by-pass valve 36 comprises a main valve member 74, Fig. 2, controlling flow between pump delivery line connection 34 and supply tank connection 38, and a pilot valve member 88 operated by a piston 92 against an adjustable spring assembly 96, which sets the operating pressure of the valve. Piston 92 is subjected on its right hand side to the pump delivery pressure via passage 114a, or via a connection between union 113 and the pump, Fig. 3 (not shown), the left hand side being subjected to supply tank pressure via passages 76 and 58. Valve member 74 is carried by a piston 66 sliding in a cylinder 62, and having a tubular portion 78 sliding in passage 58, the valve member being held in its closed position by a light spring 82 and by the delivery pressure acting through constriction 125 from pilot cylinder 90. When the differential pressure becomes excessive, pilot piston 92 moves pilot valve 88 to the left against springs 96, and releases the delivery pressure in cylinder 62 via passage 121 and valve port 86. The delivery pressure in connection 34 then acts to lift valve 74 from its seat to by-pass the delivery through connection 38. The aspirating action produced by the delivery flow past surfaces 137 between legs 131 acts to further lower the pressure in passages 76, 58 and 84. Constriction 125 throttles the flow of liquid into cylinder 62 while the pilot valve is open. A strainer 111 is provided in union 113. Pump 14 is connected to tank 10 via a valve 12, by-pass valve 36 is connected to tank 10 via a hand shut-off valve 40 and check valve 42, and delivery line 22 is connected to tank 26 via a check valve 28.
Patent GB-1037094-A (GB)
Title: Furnaces
Inventor: MCLAURIN JAMES
IPC: C01B3/38
Filed: 1964-04-13
Abstract: <PICT:1037094/C4-C5/1> A catalytic steam reforming plant of the kind having rows of catalyst-filled tubes 24 and top burners 23, e.g. as described in Specification 1,036,447, has a false floor 25 uniformly perforated at 30, and a flue gas outlet 17 communicating with the space between the false floor 25 and the true floor 12.  The floor 25 comprises slabs 28, see Fig. 1 (not shown), bridging spaced piers 26 in adjacent rows of piers, the slabs being spaced to provide slits 30. Adjacent piers in the same row are bridged by pieces 31 which are recessed, loosely to receive the tubes 24 which are supported at their upper ends.  The tubes 24 are preferably of the concentric type and closed at their lower ends, but they may traverse the plant from the roof 16 to the floor 12. A burner 21 may be provided in the flue 17.
Patent GB-1269602-A (GB)
Title: Electrical circuit board wiring
Inventor: STERANKO JAMES JOSEPH
IPC: H05K13/06
Filed: 1970-03-31
Abstract: 1,269,602. Soldering; welding by pressure. INFOREX Inc. 31 March, 1970 [1 April, 1969], No. 15226/70. Heading B3R. [Also in Division H1] In a method of connecting insulated wire to contact pads on a circuit board the insulated wire 4 is drawn from a reel 32 and passes through an opening in a bonding head, the head and board being relatively moved to bring the head with the wire projecting therefrom into successive contact with the desired contact pads, heat being applied to the portions of the wire in contact with the pads to vaporize the insulation and bond the wire to the pad. The wire may be of copper, coated with a layer of polyurethane, and may be soldered to tin-lead solder pads on copper terminals or alternatively a gold wire may be bonded by thermal compression to a gold plated substrate. In an embodiment of apparatus, Figs. 1 and 5, for soldering the wire to a circuit board a tungsten soldering tip 1 is supported by members 2, 3 which serve as electrical contacts for the tip, the wire 4 being fed to the tip via a guide 5, a cooling gas tube 6 and ceramic tube 7. The complete soldering head 19 is pivotally mounted at 25 (Fig. 5) and may be lowered into contact with the board under the control of a cam 27 and weight 31. The wire supply includes a solenoid operated lock for gripping the wire after a set of connections has been made and a solenoid operated cutter 36, 37. In an alternative arrangement there is provided a separate soldering iron mounted on and movable with respect to the bonding head and the opening through which the wire passes is not located in the soldering tip itself. The circuit board may be adjusted in two coordinate directions under manual or automatic control to position the soldering head and wire in relation to the required contact pad. A layer of nickel may be plated on the copper terminal pads between the copper and solder pad to prevent heat loss during the soldering operation (Fig. 8, not shown). Alternatively the solder pad may be larger than the underlying terminal (Fig. 9, not shown). The wired board may subsequently have components attached thereto by wave soldering.
Patent GB-437823-A (GB)
Title: Improvements in or relating to the construction of rake-bars for side-delivery hay-rakes, swath-turners and tedders
IPC: A01D80/00
Filed: 1934-05-22
Abstract: 437,823. Haymaking. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London.- (International Harvester Co. ; 606, South Michigan Avenue, Chicago, U.S.A.) May 22, 1934, No. 15243. [Class 6 (iii)] To secure tines to the rake bars of sidedelivery rakes, swath-burners, or tedders each rake bar 1 has a number of openings or recesses 3 formed therein and pairs of tines 4, each formed from a single piece of wire and having an intermediate part 6, have the intermediate parts 6 passed through the openings or recesses and then clamped in position on the rake bar. In the form shown the rake bar is constructed from angle or channel iron with slots 3 at the lower corner and the pairs of tines are formed with horizontal coils 5, a loop 6, adapted to fit into the slot 3, being situated at the junction of each pair of coils. Bolts 7 pass through the loops and through corresponding holes in the horizontal limb of the rake bar which is preferably bent over and enlarged as shown to form a seat for the rear of the loops of the tines.
Patent GB-417439-A (GB)
Title: Improvements in boot cleaning and polishing brushes
IPC: A46B11/02
Filed: 1934-05-22
Abstract: 417,439. Brushes. ULRICH, R., 96/II, Klosterstrasse, D³sseldorf, Germany. May 22, 1934, No. 15271. [Class 19.] A boot cleaning and polishing device comprises a hinged brush 16, Fig. 1, for applying polish and another brush 1 for polishing. The brush 16 is operated by an outside hand-lever 18, Fig. 3. In one position, the brush faces a leaf spring 13 which can be pushed aside by polish issuing from a flexible tube 20. In the other position, it is turned down, as shown. The tube is squeezed by a roller 10 operated by a slide 9 on a screw spindle 7. The tube is enclosed in a compartment with a hinged lid 2 secured by a snap fastener.
Patent GB-345565-A (GB)
Title: Improvements in or relating to dephlegmator or bubble towers
IPC: B01D3/18
Filed: 1930-05-19
Abstract: 345,565. Treating gases with liquids. MOORE, H., 181, Queen Victoria Street, and JOHNSON & CO. (REFINERY ENGINEERS), Ltd., J. B., Windsor House, Victoria Street, London. May 19, 1930, No. 15344. [Class 55 (ii).] In a dephlegmator or bubble tower adapted for fractional distillation, condensation or for treating gases with liquids, the transverse plates are so constructed that the descending liquid is forced to make a complete circuit round the centre of each plate in the form of a broad stream covering substantially the whole of the plate, the bubble cups being distributed radially and circumferentially over the surface of the plates. Each plate 2 is supported by brackets 3 on the tower 1 and is formed with a number of tubular gas inlets 4, covered by cups 5 which may have serrated edges and are arcuate in form. A radially arranged, tapering opening 6a is provided in each plate from which depends a delivery pipe 6 dipping below the liquid in the plate beneath, a weir 7 serving to determine the depth of the liquid on the plate. On the other side of the opening 6a is provided a higher baffle 8 which prevents the liquid from passing directly from one outlet to the next below. A radial fin 9 prevents bubbles of gas from passing into the tube 6. The openings 6a are arranged stepwise round the circumference of the casing. A special cup 10 is provided in each plate over a tubular opening 11 in a central plate 12, the cup being of cruciform shape with four channelled arms closed at the ends. Vertical baffles 15 may extend across the arms and the central plates 12 may act as manhole covers.
Patent GB-678615-A (GB)
Title: Improvements relating to thermionic valve amplifiers
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03F1/36
Filed: 1949-06-09
Abstract: 678,615. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 9, 1950 [June 9, 1949], No. 15357/49. Addition to 657,026. Class 40 (vi). A wideband amplifier giving a flat response of the type described in the parent Specification comprises an impedance 7, 11 in the anode circuit of a valve 2, a connection being made from an ' intermediate point to the grid to provide negative feed-back while a further valve 1 supplies current variations to the intermediate point in proportion to the input signal. The time constants formed by the resistors 7, 11 and the stray capacities 12, 13 are such as to cause cut-off at high frequencies and are so proportioned as to give the amplifier a substantially flat frequency response. The current flowing through the common resistor 3 remains substantially constant due to opposite variations in the current through the valves 1, 2 but a decoupling capacitor 4 is provided to prevent degeneration at high frequencies. The high frequency response may be improved by employing an inductor 16 or a capacitor 17. In a modification, Fig. 2 (not shown), signal variations from a cathode follower are applied to the remote end of resistor 7.
Patent GB-453574-A (GB)
Title: Improvements in and relating to valve amplifiers of electrical signals
IPC: H03F1/36
Filed: 1936-06-02
Abstract: 453,574. Valve amplifying circuits. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. June 2, 1936, No. 15401. Convention date, June 18, 1935. [Class 40 (v)] In a multi-stage amplifier negative reaction is provided between the input and output of each of a plurality of stages for the purpose of linearizing the amplifier. Fig. 2 shows an arrangement in which negative reaction is provided in each stage and Fig. 3 an arrangement in which in addition negative reaction is provided between the output of a later and the input of an earlier stage. An amplifier unprovided with negative reaction may precede the amplifier having negative reaction stages.
Patent GB-902483-A (GB)
Title: Improvements in and relating to lecithin compounds
Inventor: SINCROFT DONALD E
IPC: C07F9/10
Filed: 1959-05-05
Abstract: Gasoline additives comprise lecithin-diamine reaction products derived from 10-99 parts by weight of lecithin and 90-1 parts by weight of an N-alkyl or cycloalkyl polymethylene diamine of the formula R-NH-(CH2)3-NH2 where R represents an alkyl or cycloalkyl group, which are obtained by reacting the two compounds at a temperature of from 32 DEG  to 400 DEG  F.  An N-alkyl propylene diamine is preferred, and the alkyl or cycloalkyl group may be derived from fatty acids such as those obtained by the hydrolysis of coconut, soybean, and tallow oils.  The lecithin is obtained, for example from a centrifugal separation from crude soybean oil and is filtered.  The compound is added in proportions in a range of 25 to 500 parts per million to gasoline to which it adds detergent properties.  Specification 846,693 is referred to.ALSO:A lecithin-diamine reaction product derived from 10-99 parts by weight of lecithin and 90-1 parts by weight of an N-alkyl or cycloalkyl polymethylene diamine of formula R - NH - (CH2)3 - NH2 where R represents an alkyl or cycloalkyl group, is obtained by reacting the two compounds at a temperature of from 32 DEG  to 400 DEG F.  An N-alkyl propylene diamine is preferred, and the alkyl or cycloalkyl group may be derived from fatty acids such as those obtained by the hydrolysis of coconut, soybean, tallow oils.  The lecithin obtained for example from the centrifugal separation from crude soybean oil is preferably filtered.  The product is used as a gasoline additive with detergent properties.  Specification 846,693 is referred to.
Patent GB-493649-A (GB)
Title: Improvements in electric switches of the push-button type
IPC: H01H13/18
Filed: 1937-06-04
Abstract: 493,649. Press - button retractive switches. GENERAL ELECTRIC CO., Ltd., and WARRINGTON A. June 4, 1937, No. 15503. [Class 38 (v)] A push-button switch comprises two spring strip contacts 1 and 2 which are supported by insulators 3 mounted on a plate 6 so as to be capable of swivelling about a screw 5, holding it to a base 4, the magnitude of movement being limited by the length of the arcuate slots in the base, in which pins 7 move. The free ends of both contact strips 1 and 2 pass through a slot 10 in a locating member 9 which is held by the forked turned back ends of contact 1 passing through grooves 12. Depression of a push-button 11, which slides freely in member 9, causes strip 2 to make contact with strip 1. When a cover 13 is placed on the base 4, the conical surface 14 on member 9 engages a complementary surface on the cover 13, member 9 having complete freedom of movement to allow for variations in the dimensions arising during moulding of the switch parts.
Patent GB-1141346-A (GB)
Title: Production of vanadium trioxide
Inventor: HAUSEN DONALD MARTIN
IPC: C01G31/02
Filed: 1966-04-07
Abstract: 1,141,346. Vanadium trioxide. UNION CARBIDE CORP. 7 April, 1966, No. 15511/66. Heading C1A. V 2 O 3  is produced continuously from an ammonium vanadate compound by adding 0À13 lbs. gaseous ammonia per 1b. of vanadate, heating to 580-950‹ C. in water vapour and a reducing atmosphere produced at least partly by thermal decomposition of the vanadate for long enough to reduce the vanadate to V 2 O 3 , and cooling below about 180‹ C. before exposure to an oxygen containing atmosphere. The vanadates used are ammonium metavanadate, ammonium hexavanadate, ammonium vanadyl vanadate, ammonium decavanadate or mixtures of these; preferably ammonium metavanadate. The reducing atmosphere may be ammonia, hydrogen and water vapour, and a concurrent flow of solids and gases through at least the hot reaction zone improves the process. If ammonium metavanadate is used, it may be the sole starting material and no gaseous ammonia is added.
Patent GB-1066698-A (GB)
Title: Production of electrical energy
IPC: H01M8/22
Filed: 1965-04-12
Abstract: 1,066,698. Fuel cells. ENGELHARD INDUSTRIES Inc. April 12, 1965 [April 13, 1964], No. 15547/65. Heading H1B. A fuel electrode having a catalyst ruthenium, iridium, cobalt, or nickel is used in conjunction with an electrolyte having no free acid and ammonia as the fuel.
Patent GB-543160-A (GB)
Title: A gas analysis apparatus of the absorption type
IPC: G01N7/04
Filed: 1940-10-22
Abstract: 543,160. Gas analysis. SUFFOLK, S. F., and MACINTOSH, R. R. Oct. 22, 1940, No. 15558. [Class 1 (i)] Gas analysis apparatus of the absorption type comprises a cylinder a in which slides a hollow plunger containing an absorbent d, and a gauge n for indicating the reduction in pressure resulting from absorption. The piston has one perforated face and valves g, h in the other face to permit passage of the gas through the absorbent. The sample is drawn into the cylinder through an ante chamber q by a suction bellows u.
Patent GB-792589-A (GB)
Title: Method of manufacturing seamless metal tubing
Inventor: ROBB WALTER LEE
IPC: C23C16/01
Filed: 1956-05-18
Abstract: 792,589. Coating with metals. GENERAL ELECTRIC CO. May 18, 1956, No. 15597/56. Class 82(2) [Also in Group XXII] A method of making a seamless tube of molybdenum, chromium, silicon, boron, tungsten, or rhenium comprises vapour depositing the metal from vapours of its halides on an elongated support and then selectively dissolving the support. As shown, applied to the formation of a molybdenum pipe, an evacuated chamber 1 heated by a resistance furnace 9 has electrodes 4 and 5 to which are attached tubular stainless steel supports 6, 7, electrically connected at their free ends. At the bottom of the chamber 1 is a mass 16 of fragments of molybdenum through which is passed chlorine gas from a supply of solid chlorine 15 in a tube 12 immersed in liquid nitrogen. The mass of molybdenum may be heated to 450‹C. and the supports to 1100‹C. Molybdenum is deposited on the stainless steel supports and when the desired thickness is obtained the supports are removed and the stainless steel dissolved in boiling sulphuric acid, leaving a tube of molybdenum. The supports may be of iron, nickel or tungsten and the chlorine may be supplied from a wellthrottled cylinder of the gas. Since the current must be increased to maintain a constant temperature of the support, the thickness of the deposited tube may be determined by measuring the voltage drop over the support, an example of the calculation being given.
Patent GB-312234-A (GB)
Title: Improvements in or relating to electric selective arrangements for operating alarm devices
IPC: H04L15/26
Filed: 1929-05-18
Abstract: 312,234. Soc. Francaise Radio-Electrique, (Assignees of Chauveau, L. L. E.). May 22, 1928, [Convention date]. Addition to 301,753. Selectors responsive only to particular code signals.-The apparatus described in the parent Specification for responding to a distress signal consisting, for example, of four-second dashes separated by one-second spaces, is modified by (1) the provision of an auxiliary slow acting relay MN<1> controlling the signal relay MN to prevent the latter from responding to ordinary wireless telegraphic signals, and (2) the use as the spacecontroller of a slow-acting relay, for example, a hot-wire relay F<1> which only closes its contacts CT after two seconds.