baber/WOPTO huggingface dataset:
Patent GB-1516238-A (GB)
Title: Pointe shoes
IPC: A43B5/12
Filed: 1976-12-01
Abstract: 1516238 Pointe shoes SALVIO'S DANCING SHOES PTY Ltd 1 Dec 1976 50001/76 Heading A3B A toe support for a pointe shoe comprises a shell with a substantially flat nose 2 moulded from plastics material, such as polyethylene, into which the toes of a ballet dancer will extend when in use. The base 1 of the shell may be U-shaped to permit flexing of the support. At the junction of the upper portion, the base portion and the nose of the shell a thicker cross-section may be provided. A method of forming a shoe embodying the toe support is given.
Patent GB-1253480-A (GB)
Title: Improved draft control valve
Inventor: PLATE JOHN ROYLANCE
IPC: A01B63/112
Filed: 1970-10-21
Abstract: 1,253,480. Draft control valve. ALLISCHALMERS MFG. CO. 21 Oct., 1970 [23 Oct., 1969], No. 50009/70. Heading A1P. A hydraulic draft control valve for a tractor comprises a housing 26 in which a control valve spool 4 is mounted. The housing has an inlet passage 2 connected to pump 1, an actuator passage 14, 13, 23, 6, 3 connected to ram 15 and a sump passage 72 leading to sump 35. A flow control valve 48 is situated in the actuator passage and includes a constant pressure chamber 16 and a feedback mechanism. The feed back mechanism includes a piston 18 which senses pressure in the actuator passage and transmits a force via lever 20 to one end of the spool 4 in opposition to the force which operates the spool to actuate the valve. Operation. In the position shown in the Figures, flow from pump 1 is blocked and pressure in chamber 3 is, say, 250 p.s.i. The pressure in pilot line 38 is zero. A right-hand force exerted on the spool 4 by the feedback mechanism due to the load pressure in line 14 is counteracted by load spring 5. Raising implement. When manual lever 32 or automatic lever 30 causes the spool to move leftwards allowing metering grooves 6 to communicate with chamber 7, pump pressure reaches compensator 37 via check-ball valve 9 and line 38. Pump 1 will maintain a pressure of 250 p.s.i. above pilot pressure so pump pressure will increase until valve 8 is forced open allowing fluid to reach the actuator 15 via grooves 6, chambers 7, 13 and line 14. A pressure difference of 250 p.s.i. is maintained across the grooves 6 whose effective area determines the pump flow rate. Actuator pressure will operate feedback piston 18 so that equilibrium is attained. Lowering. A decrease in draft load, or a manual signal results in a decrease in load on spring 5 so that the feedback mechanism forces the spool rightwards so that groove 70 and constant pressure chamber 16 communicate and fluid is exhausted to sump 35 via passage 19. Valve 48 keeps pressure in the constant-pressure chamber 16 below say 100 p.s.i. hence, when exhaustion fluid tends to reduce this pressure, piston 71 moves leftward so that fluid from the actuator exhausts to sump via chamber 13, groove 23, piston 71, chamber 16, groove 70 and passage 19. Thus the lowering flow rate is determined by taper 17 and pressure in chamber 16; screw 12 can also alter the flow rate. Trailed implement. If a trailed implement is in use no movement of the actuator will result but changes in pressure transfer weight between tractor and implement without fluid flow. During trail-behind transport, draft load is zero; the position control lever may be used to increase traction effort or for dynamic braking.
Patent GB-1086150-A (GB)
Title: Improvements in or relating to film coated pharmaceutical forms and processes of coating same
IPC: A61K9/32
Filed: 1965-11-26
Abstract: Pharmaceutical forms have a solid, medicament-containing core completely covered by a film-forming coating material containing wax-free shellac which has been rendered water-soluble by dissolution in aqueous ammonia.  Suitable forms are tablets, pills, pellets and troches, to which the coating is applied as a coating composition of shellac in aqueous ammonia, preferably with added organic solvents and a plasticizer for the shellac. Application is carried out in a coating pan by spraying the composition on to the forms followed by warm air drying.  The composition is prepared by dissolving the wax-free shellac in just enough aqueous ammonia to form a solution; an organic solvent may then be added to improve the drying rate of the solution, e.g. alcohol and chloroform; and a plasticizer such as solid polyethylene glycol, polyvinylpyrrolidone, di-butyl- or di-methyl-phthalate, di-iso butyl adipate, castor oil, mineral oil, propylene glycol, stearyl alcohol, cetyl alcohol, and higher fatty acid glycerides.  The coating compositions may also include opacifying agents such as barium sulphate, calcium carbonate or titanium dioxide, and dyes and lakes.  Examples are given for coating tablets containing trifluoperazine, dextro-amphetamine, or chlopromazine.
Patent GB-1117459-A (GB)
Title: A method for the surface quality and shape inspection or surface treatment of balls, particularly for ball bearings and apparatus therefor
IPC: F16C19/00
Filed: 1965-11-30
Abstract: 1,117,459. Bearings. VYZKUMNY USTAV STROJIRENSKE TECHNOLOGIE A EKONOMIKY. 30 Nov., 1965 [1 Dec., 1964; 11 Oct., 1965], No. 50750/65. Heading F2A. [Also in Division G1] A means for controlling the rotating movement of a ball to facilitate inspection or processing thereof, comprises supporting rollers, a driving roller and a direction-changing roller. The latter may also serve as a driving roller and is provided with a ball-engaging surface. The shape of this surface is determined by the generating of a number of lines each of which is tangential to a point of contact between a generating circle and the direction-changing roller, the generating lines being inclined with respect to the axis of rotation of the directionchanging roller, at a continuously variable angle which varies within the range of 0-90 degrees. The number of meridians inspected or processed on the ball is limited by the range of inclination which in practice is within 60 degrees. The most advantageous course of change of the angle is along a sine curve. In an embodiment, a ball 4, Fig. 3, is supported by rollers 5, 6 and 12; is driven by a roller 7; and is controlled by a direction-changing roller 1. In another embodiment, a ball 4, Fig. 5, is supported by rollers 5, 6 and 12; is driven by a roller 7; and is controlled by a direction-changing roller 1, which is carried by a support 9. The latter is pivoted about an axis passing through the centre of the ball 4 and is connected by a rod 10 to a crank 11 which effects the direction-changing movement to the roller 1. The roller 1 may be replaced by either a roller 21, Fig. 10, where 22 is the ball-engaging surface; a pair of rollers 21, Fig. 12, each having a ball-engaging surface 21; or a pair of rollers where only one roller has a ball-engaging surface.
Patent GB-1171580-A (GB)
Title: Improvements in and relating to Metering Devices
IPC: A61B5/026
Filed: 1968-10-28
Abstract: 1,171,580. Measuring fluid flow. GAMBRO A.B. Oct. 28, 1968 [Dec. 21, 1967], No. 50962/68. Heading G1R. In a liquid flow metering device, such as for use with blood, comprising an inlet and outlet chambers 1, 2, separated by a partition and provided with a slot 10 through which the liquid flows, the flow being metered by measuring the liquid level in the chamber 1, the bottom 6 of the outlet chamber 2 is located at a lower level than that of chamber 1 and a liquid collecting bowl 12 is provided at the lower end of the slot 10 in the chamber 2.
Patent GB-1115450-A (GB)
Title: A method of,and the apparatus for, the casting of a building foundation
IPC: E02D27/01
Filed: 1965-12-02
Abstract: 1,115,450. Screw jacks. F.D. WILLIAMSON. 16 Aug., 1966 [2 Dec., 1965], No. 51236/65. Heading B8J. [Also in Division E1] A stool 42 for supporting formwork is provided with a base-plate 60 which is vertically adjustable by means of a screw 68 coupled thereto by a plain neck portion 67 engaging with an apertured disc 63 at the upper end of a tube 62 which is welded to the plate 60. Guidance is assisted by a vertical pin 66.
Patent GB-1383400-A (GB)
Title: Growth of monocryst' ' of corundum
IPC: C30B11/00
Filed: 1972-11-07
Abstract: 1383400 Corundum monocrystals INSTITUT KRISTALLOGRAFII AKADEMII NAUK SSSR 7 Nov 1972 51279/72 Heading B1S A monocrystal of corundum is made by moving a melt of alumina in a container of Mo or W through a temperature gradient. The melt is heated by resistance heating e.g. a bifilar coil of solid tungsten and the crystallization is effected in an inert atmosphere or in a vacuum. The crystallization is preferably effected in the presence of a seed crystal.
Patent GB-1492141-A (GB)
Title: Gas burner assembly with photoelectric start-stop control
IPC: F23N5/08
Filed: 1975-12-16
Abstract: 1492141 Burner controls DR TH WIELAND 16 Dec 1975 [21 Dec 1974] 51397/75 Heading F4T A bunsen or like gas burner assembly comprises means for electrically starting and stopping operation in response to the presence in the immediate vicinity of the burner flame, of the operator's hand, a gas supply 21, including a solenoid valve 50 which is opened by energization of its coil, a dimmer switch circuit 40 with a valve relay 42 controlling valve 50 and including photo-electric means 15 for sensing the hand by responding to an ambient light field outside that created by the burner flame. The burner assembly includes a casing 10 supporting a bunsen burner 11 with a pilot tube and coil 12, 13, a photo-electric sensor 15 including a light tube 16 and a photo-electric cell 17 supported by a universal pivot 18, an A.C. supply 23, a push-button main switch 25, a control light 26, selector switch 27, light sensitivity knob 28, and a burner flame control valve 29. In operation, switch 25 is operated so that the "on" condition is indicated at light 26; valve 29 being closed and the pilot ignited. Knob 28 is rotated to its end position so as to adjust the system to minimal light sensitivity and tube 16 is aimed at a light source by swivelling pivot 18. Valve 29 is opened and the burner is ignited. Knob 28 is rotated slowly until the electrical circuit responds, to shut down burner 11, and this provides the adjustment for automatic starting and stopping of the burner in response to the appearance and disappearance of the shadow of the operator's hand above tube 16. The appearance of the shadow reduces the resistance of cell 17 so that the potential at the base of transistor 43 is increased, and the transistors 43, 44, are triggered to cause relay 42 to open valve 50 via contact 46. When the shadow disappears the resistance of cell 17 increases until transistor 43 becomes non- conductive, relay 42 is de-energized, and valve 50 closes. When a continuous flame is required, selector switch 27 is operated to thus disconnect adaptor 30 and dimmer switch circuit 40, so that a direct circuit to solenoid valve 50 is established with the A.C. source.
Patent GB-1254039-A (GB)
Title: Method and apparatus for moulding liquid synthetic thermosetting resins
IPC: B29B7/26
Filed: 1969-10-20
Abstract: 1,254,039. Injection moulding thermosetting resins. HULL CORP. 20 Oct., 1969 [5 Aug., 1969], No. 51417/69. Heading B5A. Apparatus for moulding liquid thermosetting resin comprises separate proportioning units for hardener and resin, each proportioning unit including a piston (48) in a cylinder 40, 42 and a hollow piston-rod 52, 54 connected to the piston and communicating with the proportioning chamber through an aperture (50) in the piston. The hardener and resin are supplied to the cylinders 40, 42 through conduits 62<SP>1</SP>, 64<SP>1</SP> containing valves 65. By moving the cylinders 40, 42 upwardly by means of a cylinder 28, the hardener and resin are forced through the hollow piston-rods 52, 54 and conduits 62, 64 to a mixer 66. The mixer includes an impeller 72 driven by an electric motor 70 and is connected by a flexible conduit 74 to a nozzle head (76), Fig. 2 (not shown). The nozzle head is moved by a cylinder 86 into contact with the mould 22, 24.
Patent GB-1351969-A (GB)
Title: Superconductive switching means
IPC: H01L39/20
Filed: 1971-11-09
Abstract: 1351969 Superconductive circuits COMPAGNIE GENERALE D'ELECTRICITE 9 Nov 1971 [13 Nov 1970] 52080/71 Heading H3X By applying a current pulse of predetermined duration and amplitude to a tripping winding 7 coupled with a superconductive loop 1, 2, the superconductivity is suspended for the duration of the pulse and stored energy partially transferred to a load 6. The superconductive loop is charged from a source 4 through a switch 5, and is partially discharged by closing a circuit breaker 10 for a predetermined duration to connect a selected number of charged capacitors 8, 9 to the coil. The range of relationship between pulse duration and field intensity permitting superconductivity to be suspended rather than destroyed is represented graphically in Fig. 2 (not shown).
Patent GB-1137123-A (GB)
Title: Improvements in and relating to copper/iron/aluminium alloys
Inventor: HARPER SYDNEY
IPC: C22C9/00
Filed: 1964-12-22
Abstract: 1,137,123. Washing at specified temperatures. NATIONAL RESEARCH DEVELOPMENT CORP. 17 Dec., 1965 [22 Dec., 1964], No. 52152/64. Heading B3V. [Also in Division C7] An alloy consists of the balance, apart from impurities and incidental elements, being copper in an amount of 35-75% and comprises a matrix of a copper rich solid solution phase containing 5-10% Al containing therein, in the form of a fibre, an iron rich solid solution phase containing 10- 20% A1. The required microstructure may be produced by cold working as by hydrostatic extrusion but is preferably done by hot working as by extrusion or rolling above 500 C. e.g. at 600-950 C. which treatment may be followed by cold working, as by rolling or swageing to further develop the structure. The alloy may then be annealed at 520 C. and water quenched or at 800 C. followed by furnace cooling.
Patent GB-1108220-A (GB)
Title: Carbon and carbon-graphite bearings and anti-friction surface
Inventor: EATON EDGAR P
IPC: F16C33/20
Filed: 1966-11-23
Abstract: 1,108,220. Bearings. SOCIETE LE CARBONE-LORRAINE. 23 Nov., 1966, No. 52393/66. Heading F2A. A self-lubricating bearing comprises a carbon or carbon-graphite member 10, Fig. 2, having a thin layer 12 of P.T.F.E. bonded to each loadreceiving surface thereof. The P.T.F.E. may be filled with glass particles or metal powders; and the layer may be in the form of a tape. The load-receiving surfaces may receive radial or axial loads.
Patent GB-1163901-A (GB)
Title: Cable Gland
Inventor: BLUNDELL ROY ALFRED
IPC: H02G3/06
Filed: 1965-12-10
Abstract: 1,163,901. Cable glands. R. A. BLUNDELL. 7 March, 1967 [10 Dec., 1965], No. 52450/65. Heading H2E. A cable gland has a resilient membrane 7 in sealing contact around cable sheathing 12. The membrane is secured, e.g. by bonding to a mounting ring 19 and is sufficiently resilient for temporary reversal of its positional inclination on receiving the cable, the armouring 11 of which is clamped between the rings 9, 10 and 9, 19 when a ring nut 6 is tightened on the body 1 of the gland. A similar membrane 8 seals an inner sheath 13 and the membranes are made of rubber or resilient plastics material.
Patent GB-1409170-A (GB)
Title: Method for producing high-purity nickel from sulphidic materials
IPC: C25C1/08
Filed: 1973-11-13
Abstract: 1409170 Obtaining high purity nickel from nickel matte LE NICKEL 13 Nov 1973 [13 Nov 1972] 52738/73 Addition to 1370259 Heading C1A High purity nickel is produced from nickel bearing sulphidic material as disclosed in Specification 1,370,259 by the following steps: (a) drying and roasting at approximately 900 C.; (b) dissolving in concentrated HCl; (c) oxidizing the iron content of the solution; (d) eliminating the impurities on strongly basic anion-exchange resin of the quaternary ammonium type; (e) neutralizing and (f) electrolysing. The oxidation step (c) is carried out by bubbling Cl 2  into the impure nickel chloride solution and adding afterwards the amount of hydrogen -peroxide which is necessary to bring the oxidation-reduction potential of the solution to the value corresponding to the stoichiometric oxidation of the ferrous ions. Amounts of chlorine greater or less than the stoichiometric amount to oxidize the ferrous ions may be used.
Patent GB-1262871-A (GB)
Title: Method of jointing and terminating electric cables
Inventor: CLEAVER JOHN STEPHEN
IPC: H02G15/24
Filed: 1968-04-11
Abstract: 1,262,871. Welding by fusion and pressure. BRITISH INSULATED CALLENDER'S CABLES Ltd. 10 April, 1969 [11 April, 1968; 10 June, 1968 (2); 11 Nov., 1968 (2)], Nos. 17484/68, 27499/68, 27500/68, 53371/68 and 53372/68. Heading B3R. [Also in Division H2] In jointing or terminating by welding an electric cable having a stranded conductor through the interstices of which liquid impregnant can pass, the stranded conductor is surrounded by a heat sink, metal in a molten state is applied to the whole of the end face of the conductor or between the end face of the conductor and the end of the terminal member or the end of the other conductor and liquid impregnant is removed from the interstices in the region of the end of the stranded conductor by applying vacuum to the stranded conductor. To join two oil-filled cables a heat sink 1 of copper if the conductors are of aluminium or of mild or stainless steel if the conductors are of copper is assembled about each conductor end 4, the sink having its end face 2 inclined, and the conductors are cut at the angle of the heat sink. An annular groove 5 in the inner surface of the heat sink is connected by a passage 6 to a vacuum pump whereby oil is drawn from the conductor, whose opposite end is connected to an oil reservoir, until oil no longer flows from the cut surface. The cut surface is washed and a thin layer of weld metal is applied to the cut face by MIG welding. With both conductors so prepared they are aligned in another heat sink forming a mould which provides access to the V-shaped gap between the ends, the mould having annular grooves connected to vacuum. The V gap is filled with weld metal by MIG welding using argon and subsequent to removal of the heat sink the joint is filled or milled. A separate manifold may be provided between the heat sink and the cut back end instead of in the heat sink or an extra manifold connected to insert gas may be used to facilitate oil clearance. Instead of initially coating the cut surface with weld metal it may be hammered. In a modification the end of a conductor is provided with its weld coating layer as before and the prepared end is then inserted in a composite heat sink 17, Fig. 6, comprising an inner part 18, threaded and of the same metal as the conductor, and an outer removable part 19. A vacuum manifold 20 is also employed. The space 21 is filled by MIG welding with weld metal to join the sleeve 18 to the conductor. After removal of the parts 19, 20 a terminal is screwed on to the sleeve 18, the terminal being copper if the conductor is of aluminium. In further modifications the heat sink about the screwed sleeve becomes part of the connection, in one case the inner sleeve is screwed and sweated to the heat sink and in another a tapered aluminium inner sleeve is friction welded or flash butt welded in a copper body prior to the welding of the sleeve to the conductor. The impregnant may, instead of oil, be an oil-wax mixture which becomes liquid at the temperature of jointing.
Patent GB-1246686-A (GB)
Title: Improvements in or relating to signal transmission circuits
Inventor: GAUNT WILMER BARSEAU JR
IPC: H03H11/18
Filed: 1968-11-13
Abstract: 1,246,686. Transistor phase shifters; amplitude modulators. WESTERN ELECTRIC CO. Inc' 13 Nov., 1968 [17 Nov., 1967], No. 53732/68. Headings H3R and H3T. A phase shift circuit comprises an input terminal 110 coupled to an amplifier 140 via a first path which includes an amplifier 118, and passive networks 26, 29 and also via a second path which includes an impedance 31. It is shown that, if the amplifier 140 has a low input impedance, the values of the elements of the networks 26, 29 and the impedance 31 may be selected so that the magnitude of the ratio of the output to the input is the same at all frequencies. Two phase shifters of the type described may be employed to produce the 90 degree phase difference in a quadrature amplitude modulation system, Fig. 4 (not shown).
Patent GB-1084659-A (GB)
Title: Improvements in or relating to organosilicon polymers
IPC: C08G77/54
Filed: 1965-12-23
Abstract: An organosilicon polymer consisting essentially of recurring units of the formula <FORM:1084659/C3/1> is made by polymerizing in the presence of iodine a cyclic siloxazane of the formula <FORM:1084659/C3/2> wherein R is an alkyl, aryl, aralkyl or alkaryl radical, with the proviso that where one R on a given Si atom is an aryl or alkaryl radical the other R is also an aryl or alkaryl radical, and n is an integer greater than 50.  The reaction is effected merely by mixing the two substances together, or if the siloxazane is a solid, then a solvent is used and the reaction is conducted at 35 DEG  to 125 DEG  C.  Examples 1 and 2 describe the above preparation of the polymers, and Example 3 shows that where an aryl and a non-aryl radical are attached to the same Si atom, cleavage of the aryl radical from Si occurs with little or no polymerization.  The polymers may be mixed with fillers, e.g. C black or silica, and benzoyl peroxide, and heat cured to elastomers.
Patent GB-1152936-A (GB)
Title: Funnel Pen
Inventor: RIEPE HELMUTH
IPC: B43K1/01
Filed: 1967-12-04
Abstract: 1,152,936. Stencilling pens. H. RIEPE, and K. H. DITZE, [trading as RIEPE-WERK]. 4 Dec., 1967 [18 Jan., 1967], No. 55135/67. Heading B6P. A stencilling pen comprises an ink container 2 which is closed at one end by a cap 8 and merges at the other end into a writing tube 6. A cleaning pin 10 bears against the closed inner wall of the cap 8, and may be fast therewith. The cap 8 and pin 10 move together against a spring 14 relative to the container 2, and the cap is prevented from leaving the container by a screw-thread 16 on the external surface of the container. The cap 8 has an internal screw-thread 18 which is screwed beyond the screw-thread 16 when assembling the pen. An annular projection 22 on the container 2 acts as a seat for an external spring (Fig. 2). An opening 20 in the container 2, which may be above or below the projection 22, serves for filling the pen and as an air vent. The projection 22 also prevents the opening 20 from being masked by the clamps of a pen holder.
Patent GB-1248963-A (GB)
Title: Improvements relating to hand trucks
IPC: B62B1/12
Filed: 1968-11-22
Abstract: 1,248,963. Trollies. H. C. SLINGSBY Ltd., and G. SLINGSBY. 9 July, 1969 [22 Nov., 1968], No. 55469/68. Heading B7B. A hand truck comprises parallel side frame members 1a, 1b connected by cross pieces, a load plate 6 fixed to the side members, and a larger load member 11 pivoted to the frame. A U-shaped member 4 secured to plate 6 lies in the plane of the side members. The larger load member is U-shaped with its ends pivotally mounted between the ends of the side members and member 4. When inoperative, the larger member 11 is retained in the plane of the side members by a catch 14, and when operative rests on plate 6.