baber/WOPTO huggingface dataset:
Patent GB-780161-A (GB)
Title: Improvements in or relating to fluid mixing devices
Inventor: BARKER CLIFFORD LEWIS
IPC: F16K11/08
Filed: 1953-12-18
Abstract: 780,161. Thermally-actuated valves. WALKER CROSWELLER & CO., Ltd. Dec. 13, 1954 [Dec. 18, 1953], No. 35234/53. Class 135. A fluid mixing device comprises a ported sleeve 20 rotatable by a thermal element 27 in a ported liner 15, the sleeve having at one end a head 23 with inclined outlet ports 28 which open to a mixing chamber 24 on the opposite side of the thermal element to the discharge outlet so that the mixture is constrained to pass over the thermal element.
Patent GB-343887-A (GB)
Title: Improved pipes for high pressure duty
IPC: F16L9/04
Filed: 1929-11-19
Abstract: 343,887. Metal pipes. BERGSTROM, E. M., Ropley Cottage, Goring-on-Thames, and DIGBY, W. P., 6, Queen Anne's Gate, London. Nov. 19, 1929, Nos. 35298/29 and 215/30. [Class 99 (ii).] In metal pipes 11 which are reinforced by winding one or more layers of wire 13 under tension spirally therearound, means are provided for preventing unravelling of the wire in the event of breakage, said means also serving to strengthen the pipe. In the construction shown in Fig. 1, the means comprise longitudinal metal strips 17 which are brazed or welded to the wire windings. The latter is preferably sherardized or galvanized, and has its ends clamped at 14 in grooves 15 of the pipe flanges 12. In modifications, the strips 17 are secured to hoops, and the cage thus formed is shrunk or welded over the wire windings, or further wire windings are applied over the longitudinal strips. Alternatively a number of contiguous bands or tubes may be shrunk-on over the wire windings. In further modifications, a single tube is shrunk-on over the wire, or a loosely-fitting tube is placed over the wire and the space between the tube and the wire filled with a bituminous mixture. The winding may also be held in place simply by a metal coating or sheathing 19, Fig. 3, applied thereto by spraying, dipping, &c. The pipe and wire may each be coated, prior to assembly, with white lead paint and the completed pipe similarly treated, and the latter is preferably further strengthened by external tie-rods located between the flanges. Specifications 17101/93, 4574/96, [both in Class 99, Pipes &c.], 11171/07, [Class 123, Steam generators], and 1533/10, [Class 99 (ii), Pipes, tubes, &c.], are referred to.
Patent GB-988549-A (GB)
Title: Method for determining pour points and apparatus therefor
IPC: G01N25/04
Filed: 1962-09-18
Abstract: 988, 549. Measuring pour point of liquids electrically. ESSO RESEARCH & ENGINEERING CO. Sept. 18, 1962 [Sept. 25, 1961; June 7, 1962], No. 35474/62. Heading G1N. Apparatus for determining the temperature at which the viscosity of a heated liquid becomes sufficiently low for the liquid to be poured from a container comprises means for applying pressure pulses to the liquid and means for measuring the corresponding pressure changes in an air space above the liquid surface. At the pour point the air pressure change is 5% of the pressure changes applied to the liquid. As shown (Fig. 1), the test liquid is drawn from a pipeline 1 into a temperature-controlled chamber 6, its temperature being measured by a thermocouple 10. A pulsating pressure is applied to the test liquid by a bellows 8 coupled to a motor-driven eccentric 17. The test liuqid is cooled below freezing and then gradually heated, while the pressure in the air space 13 above the liquid is measured electrically, and recorded at 11 together with the temperature signal from thermocouple 10. The pour point temperature is thus obtained from the chart of the record 11. The apparatus may be used with the temperature gradually decreasing to freezing point instead of increasing from freezing.
Patent GB-411904-A (GB)
Title: Improvements in and relating to fuels for use in internal combustion engines and forother purposes
IPC: C10L1/18
Filed: 1932-12-15
Abstract: Fuel for internal-combustion engines consists of liquid hydrocarbon with 0,25--5 per cent or other proportion of a mixture of ether, acetone or other liquid ketone, and ammonia or other highly volatile basic material.  Up to 40 per cent. of the hydrocarbon may be replaced by alcohol.  Suitably, 47,5--40,0 gallons of ether is mixed with 2,5--10,0 gallons of acetone, and 2,0 gm. of ammonia is added per gallon.  0,25--1,0 per cent. of the mixture is added to petrol or gasolene; 0,5--1,0 per cent. to kersoene; up to 1,0 per cent to Diesel oil; and 1,0--5,0 per cent to hydrocarbon-alcohol fuel.  The ether employed normally contains aldehyde.  Specifications 262,363, [Class 91], and 369,731 are referred to.
Patent GB-902500-A (GB)
Title: A windshield wiper assembly
IPC: B60S1/18
Filed: 1960-10-19
Abstract: 902,500. Windscreen wipers. ANDERSON CO. Oct. 19, 1960 [Oct. 22, 1959], No. 35814/60; Class 138 (1). [Also in Group XXIV] A pulley 40 on each wiper shaft 21 or 22 of a  windscreen wiper system is engaged by a flexible driving cable 49 connected at its ends to a link 32 reciprocated by an electric motor or other power unit 28. The link 32 is formed with channel portions 38 for receiving the adjacent portions of the pulleys 40. In a further embodiment in which the wiper arms  rotate in the same directions, the link is driven by a cable attach ed at its ends to an intermediate portion of the link and passing over a driving pulley. Other embodiments are described in which the driving pulleys are non-circular. Specification 833,776 is referred to.
Patent GB-895211-A (GB)
Title: Improvements in or relating to extensible masts
Inventor: RUSLING JOHN THEODORE
IPC: H01Q1/10
Filed: 1959-10-22
Abstract: 895,211. Aerial masts. ACCESS EQUIPMENT Ltd. Oct. 19, 1960 [Oct. 22, 1959], No. 35835/59. Class 20(1) In a telescopic aerial mast comprising four slidable tubes 2, 3, 4, 5 nesting within a fixed tube 1; ropes 13, 22, 23 and 24 are attached respectively to the lower ends of tubes 2, 3, 4, 5; each rope extending upwardly alongside the tube to which it is attached and over a pulley 7, 25, 26, 27 attached to the adjacent outer tube 1, 2, 3 or 4; the other ends of the ropes being attached to ground anchors, apart from rope 13 which is attached to a winch. Operation of the winch causes tube 2, to which rope 13 is attached, to move upwardly, thereby raising pulley 25 which in turn causes tube 3 to rise; the rope 22, passing over pulley 25, being secured at its respective ends to the ground and to the lower end of tube 3. Tubes 4 and 5 are likewise raised simultaneously with tubes 2 and 3.
Patent GB-1085969-A (GB)
Title: Insectiphobic compositions comprising terpene derivatives
IPC: A01N33/08
Filed: 1966-08-10
Abstract: The invention comprises monoterpene hydrocarbons substituted by an -S-R-NR1R11 group, where R is C1- 8 alkylene and R1, R11 are C1- 8 alkyl, and a process for making them by reacting the terpene mercaptan with a dialkylaminoalkyl halide.  Example 13 describes the preparation of a mixture of geranyl/neryl 2-diethylaminoethyl sulphides.ALSO:Monoterpene hydrocarbons substituted by an -X-R-NR\svR\yF group, where R is C1-8 alkylene, R\sv and R\yF are C1-8 alkyl and X is O or S, are used as insectiphobic compounds. These compounds may be formulated with conventional solid and liquid carriers, and piperonyl butoxide may be used as potentiator.
Patent GB-1281592-A (GB)
Title: Impregnation of multi-filamentous sutures with synthetic polymer particles
Inventor: KURTZ LEONARD D
IPC: D06M15/256
Filed: 1969-07-18
Abstract: 1281592 Impregnating multifilament sutures SUTURES INC 18 July 1969 36278/69 Headings D1F and D1W A method for imparting monofilament attributes to a multifilament suture comprises immersing a multifilament suture in an aqueous disersion of insoluble, inert, synthetic polymeric particles of a size sufficiently small to enter within the interstices of the suture maintaining the immersion to introduce the particles in an amount at least 6 per cent by weight of suture, and subjecting the impregnated suture to centrifugal force to extract water and dry the suture. The polymeric particles preferably fill the interstices in the suture. The suture is preferably made of silk, and the particles of polytetrafluoroethylene of an average size up to 1 micron. The suture may be made of a polyester, polyamide, polyolefin, polyacrylonitrile, cotton or linen. Further examples of suitable polymeric particle substances are polyethylene and polystyrene in latex.
Patent GB-831357-A (GB)
Title: Purification of isoprene
IPC: C07C7/13
Filed: 1957-11-21
Abstract: Isoprene is freed of straight chain acetylene contaminants by contacting the impure isoprene with a molecular sieve having a channel diameter of about 5  .  The usual contaminants are 1-pentyne and 2-butyne in amounts up to about 5% by weight and these can be removed to leave less than 0.1%.  The sieve may be any natural or synthetic zeolite of the required pore size.  In small-scale operations the isoprene can be stirred with a powdered sieve in an amount of 200-400 grams per mol. of acetylene contaminant.  In larger scale operations the isoprene is contacted in the vapour and/or liquid phase at - 20 DEG  to 150 DEG  F. and 1-250 p.s.i.a., preferably ambient conditions, with fixed or moving beds of sieves at space velocities of 0.3-20 vol/vol/hr. The isoprene is preferably predried since water is preferentially adsorbed on the sieves.  The sieve may also be dried by heating to 250-650 DEG F.  The sieves may be regenerated by burning off the acetylene contaminants with an oxygen-containing gas at 900-1100 DEG  F.  To prevent the temperature rising too high the oxidizing gas is normally air diluted, e.g. with nitrogen.  The sieve is cooled by passing through it a dry inert gas. The isoprene freed from acetylenes is suitable for polymerization. Dienes may also be removed if desired, e.g. by adding maleic anhydride and flash distilling.
Patent GB-888761-A (GB)
Title: Electric cable splice
Inventor: JR ROBERT SENIOR
IPC: H01R4/20
Filed: 1959-10-27
Abstract: 888,761. Sleeve couplings. EMPIRE PRODUCTS Inc. Oct. 27, 1959, No. 36356/59. Class 38 (1). A sleeve coupling for insulated electric cables 10, 11 comprises a deformable connector tube 16, e.g. of copper, crimped to the bared cable ends 14, 15, the crimps forming pockets 27, 28 disposed on opposite ends of the tube 16 in diametrical relationship, a longitudinally split inner insulating sleeve 23 having preformed protuberances 25, 26 projecting into the pockets 27, 28, and an outer insulating sleeve 29 surrounding the inner sleeve and overlapping at opposite ends the cable insulation. The tube 16 has a circumferential depression 17 providing a rib acting as an abutment for the cable ends 14, 15, and the sleeve 23 has a rib 24 received within the depression 17. The outer sleeve 29 has circumferential ribs 30, 31 which lie within the grooves between the opposite ends of the tube 16 and the adjacent insulating portions of the cables 10 and 11.
Patent GB-859219-A (GB)
Title: Improvements in or relating to the production of hydrogen peroxide
IPC: C01B15/023
Filed: 1957-11-22
Abstract: In a process for the manufacture of hydrogen peroxide by the successive hydrogenation, oxidation and water-extraction of an anthraquinone, hydrogenation is effected in the presence of a catalyst which is cobalt, nickel, rutherium, rhodium, palladium, osmium, iridium or platinum supported on an open-surfaced oxide of silicon or aluminium or a mixture thereof, the open-surface factor "f" <FORM:0859219/III/1> of such oxide being not less than 3 and not more than 25. Catalyst metals, particularly palladium are deposited from aqueous solution as hydroxides or basic salts of the metal on the oxide support, which may be a pyrogenically prepared aerogel, as in Specification 726,250, having a particle size of less than 2 mesh and a surface area of 10-600 sq. metres/grm.  Residual water is removed from the catalyst by mixing with an aliphatic alcohol, e.g. butyl alcohol, and removing the aqueous azeotrope so formed by distillation.  The metal compound deposited upon the carrier is reduced to the metal by treatment with hydrogen at elevated temperature or with a chemical reducing agent, e.g. formaldehyde, to leave 0.01-10% weight of the metal per se.  Catalysts of 2-60 mesh may be used as fixed beds, while particles for suspension in the working solution should be smaller than 60 mesh, e.g. 50 microns. Specifications 465,070 and 686,574 also are referred to.
Patent GB-902433-A (GB)
Title: Improvements relating to fluorescent lamps
Inventor: CLARKE MAURICE GEORGE
IPC: H01J65/08
Filed: 1957-11-22
Abstract: 902,433. Luminescence. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 20, 1958 [Nov. 22, 1957], No. 36552/57. Class 39 (1). An illuminating device comprises a sealed envelope of light-transmissive material such as glass andof substantially circular cross-section enclosing a filling of radioactive gas emitting #-radiation, e.g. tritium, the interior wall of the envelope being coated, except for a window, with a visible-light reflecting material, e.g. finely-powdered TiO 2  or MgO, and the coating and the window being covered with a layer of material luminescing under the action of #- radiation. The layer of luminescing material is of such thickness as to absorb substantially the whole of the #-radiation falling upon it while not absorbing an appreciable amount of the visible light emitted by the luminescing material. The light-reflecting material can be applied to the envelope in a suspension or as a smoke. The envelope can be in the form of a sphere or a tube of circular cross-section, and in the latter case the window is a portion of the envelope subtending an angle of from 45 to 180 degrees at the longitudinal axis thereof. Reference has been directed by the Comptroller to Specification 646,414.
Patent GB-795984-A (GB)
Title: Improvements in or relating to an electric appliance for igniting coal and other solid fuel fires
IPC: F23Q13/00
Filed: 1955-12-21
Abstract: 795,984. Electric are lighters. KINDLER ELECTRIC CO., Ltd., and JONES, R. Dec. 6, 1956 [Dec. 21, 1955; Dec. 21, 1955], Nos. 36577/55 and 36578/55. Classes 39(3) and 126. An electric fire lighter comprises a metal frame carrying spaced refractory tubes enclosing electric heating elements and an upper cover with holes for the upward passage of air. Refractory tubes 2 enclosing coiled wire elements are mounted between refractory end plates 3 in a heatresisting metal frame 1, with a metal bottom plate 15 with air apertures 18. A metal cover plate 12 with side and bottom flanges 13, 14 can be slid over the frame 1 and bottom plate 15, and held in position by screws. Spaced slots 17 at the sides of the top plate 12 allow air to flow upwardly through the frame. The connections 7 to the electric elements pass through the handle 8. In a modification, the bottom plate is integral with the frame, and the top plate has a number of longitudinal grooves. The lighter may be laid on the bars of a grate, or may be supported by an adjustable stand below the bars of a grate. The refractory tubes may be filled with powdered fused magnesia, or a mixture of magnesia and boracic powder. Specification 726,552 is referred to in the Provisional Specification.
Patent GB-334801-A (GB)
Title: Improvements in and relating to watering appliances for animals
IPC: A01K7/06
Filed: 1929-11-29
Abstract: 334,801. Beatty, W. G. Nov. 29, 1929. Feeding and drinking appliances for animals. -In a drinking trough of the type in which a drinking bowl is detachably connected to a valve standard, clamping means for the detachable bowl 13 comprises a. lever 14, pivoted to the supply fittings at 15, having an extension 12b which grips the bowl against the spout 2 and a horizontal extension 12<a>. Clamping pressure is supplied by a set-screw 11 which engages with the extension 12a. The rim 16 of the bowl enters a recess in the lever 14 and also presses against the underside of the supply fitting so that vertical movement of the bowl is prevented. According to a modification the set-screw 11 may be replaced by a cam-shaped lever, the cam surface engaging with the arm 12a.
Patent GB-855985-A (GB)
Title: Improvements in or relating to transistor oscillation generators
IPC: H03B5/12
Filed: 1958-11-13
Abstract: 855,985. Transistor oscillators. TELEFUNKEN G.m.b.H. Nov. 13, 1958 [Nov. 15, 1957], No. 36607/58. Class 40(6). A transistor oscillator, for very high frequencies at which the phase shift through the transistor is in the order of 90 degrees, comprises a tuned circuit and a back coupling coil connected in the reverse sense from a normal back coupling coil. The inductance of the back coupling coil is of such a value that it resonates with the effective capacitance of the transistor across it so close to the frequency of oscillation as to produce the necessary overall phase shift for oscillation generation. In Fig. 1 a transistor T connected in common emitter configuration has a tuned circuit 0 connected between the collector and earth. A back coupling coil L2 inductively coupled to the tuned circuit, is connected between the base of the transistor and earth and forms a further tuned circuit with the effective baseemitter capacitance CE of the transistor. In an alternative embodiment (Fig. 2 not shown) the oscillator is connected in a common base configuration and in another embodiment (Fig. 5 not shown) an oscillator of this latter type is modified as a mixer the input being fed into the base circuit. The coupling between the tuned circuit and the back coupling coil may be inductive (as shown in Fig. 1) mixed inductive and capacitive, or capacitors. Examples of circuits using capacitive back coupling are given in Figs. 6 and 7 (not shown).
Patent GB-956926-A (GB)
Title: Reinforced composite polymer plastics
Inventor: MILLAR RONALD LEWIS
IPC: C08L77/00
Filed: 1962-09-27
Abstract: A method of making a polymer composition comprises kneading together a molten polymer of ethylene, propylene, t-butene, isobutylene, or a mixture thereof, a water-insoluble linear polyamide resin having recurring amide groups as integral parts of the polymer chain under heat and a pressure of at least 400 lbs. per sq. in. in the presence of fine particles of a chemically inert and physically active reinforcing filler, the ratio of hydrocarbon resin to polyamide being between 95.5 and 25.75 by weight, and the filler being 1/2 to 10% by weight of the total mixture and having essentially all particles smaller than 325 mesh. Specified fillers are colloidal silica, finely ground mica, hydrated calcium silicate, hydrated silica, anhydrous calcium silicate, diatomaceous silica, alumina, titania, bentonite, iron oxide, magnesium silicate, aluminium silicate, carbon black, anhydrous barium sulphate and anhydrous zinc oxide. The examples describe compositions made from (1), (3) and (4) polyethylene, nylon-6 and collodal silica; (2) polyethylene, nylon-6 and (a) anhydrous colloidal silica; (b) water-ground mica; (c) precipitated calcium silicate and (d) hydrated silica; (5) isotactic polypropylene, polyhexamethylene adipamide and anhydrous calcium silicate; (6) polyisobutylene, polyhexamethylene sebacamide and dried, dehydrated calcium silicate; (7) branch polyethylene, polyhexamethylene adipamide and hydrated silica and (8) poly-l-butene, nylon-6 and finely groud mica. The compositions may be moulded into bottles, spun into filaments, laminated in foil form to substrates or used as coating or surfacing materials.
Patent GB-1485159-A (GB)
Title: Static switch controller
IPC: H03K17/13
Filed: 1974-08-21
Abstract: 1485159 Switching systems for load supply circuits SILEC-SEMI-CONDUCTEURS 21 Aug 1974 [11 Sept 1973] 36718/74 Heading H2H A system for controlling the power supplied to a load 14 from an alternating current supply Va comprises a static switch 12-which may be a thyristor, a triac or a pair of reversely parallel connected thyristors-the switch 12 being provided with a triggering circuit 1 which includes an auxiliary thyristor 2 having a high impedance 3 in series therewith, the series circuit 2, 3 being connected across the input terminals AB of the switch 12 across which terminals a rectified alternating voltage V R  appears and which is derived from the voltage Va, the thyristor 2 having a signal Vi applied thereto by way of input terminals AC to fire the thyristor 2, the arrangement being such that the signal Vi is only effective to fire the thyristor 2 when the voltage V R  has a value less than a predetermined value. One embodiment of the triggering circuit 1 is illustrated in Fig. 2 wherein the high impedance in series with the thyristor 2 is formed by a Zener diode 22. Whilst the rectified alternating voltage V R  is below a predetermined value, this voltage in series with an auxiliary voltage source 23 is insufficient to breakdown a Zener diode 21. The cathode potential of the thyristor 2 is thus such that the firing signal Vi applied to the gate causes conduction of the thyristor 2 and at a certain value of V R  the Zener diode 22 breaks down whereupon the switch 12 is rendered conductive to supply the load 4. As the voltage V R  increases the Zener diode 21 breaks down the cathode of the thyristor 2 then being such as to prevent the signal Vi from triggering the thyristor to inhibit the supply to the load 4. In other embodiments the series circuit 20, 21, 23 may be replaced by a simple potential divider, the Zener diode 22 replaced by an anode gate thyristor and the thyristor 2 may be a photothyristor. The firing signal generating device may comprise a timing means whereby the system may operate to regulate the power supplied to the load 4. The system may also be modified so that conduction of the switch 12 occurs at zero values of the voltage source Va.
Patent GB-1364530-A (GB)
Title: Rectifier
IPC: H01L21/00
Filed: 1971-08-04
Abstract: 1364530 Semi-conductor devices BBC BROWN BOVERI & CO Ltd 4 Aug 1971 [10 Aug 1970] 36721/71 Heading H1K A method of forming a rectifier comprises dividing axially a stack of diode elements, soldered electrically in series with a soft solder, to produce a plurality of stacks, providing one of the stacks with terminals, etching the stack so as to produce a throat 9 in each element, and providing the stack with a protective varnish. The diodes may be of silicon, the solder being of lead-silver or an alloy of Pb-Sn-Ag; Pb-Sn-Cu; Pb-Ag-In or Pb-Ag-Cu. The throat 9 is said to reduce the surface field strength of each element. The division of the stock may be accomplished using a reciprocating frame saw, wire frame saw, rotary diamond frame saw or an ultrasonic drill. The rectifier may be assembled in a housing or have insulating material pressed around it.
Patent GB-959736-A (GB)
Title: Process for reducing the loss in tensile strength caused by dyeing with sulphur dyestuffs
Filed: 1962-09-27
Abstract: The loss in tensile strength of materials containing cellulose which have been dyed with sulphur dyes is reduced by treatment, subsequent to dyeing and rinsing, with aqueous solutions of condensation products of dicyandiamide or dicyandiamidine with formaldehyde and thereafter treating with oxidising agents, rinsing and finishing in the usual manner.  The specified oxidising agent is a potassium bichromate/acetic acid bath. Suitable condensation products are described in Specifications 673,711 and 536,480, German Specifications 671,704 and 705,836 and U.S.A. Specification 2,214,067, the one specified being a condensation product obtained from 1 mol dicyandiamide, 1 mol ammonium chloride, ammonium sulphate or ethylenediamine hydrochloride and 2.5 mols formaldehyde.  An example containing comparative data is given.