baber/WOPTO huggingface dataset:
Patent GB-330964-A (GB)
Abstract: 330,964. Burton, J., and Rover Co., Ltd. March 20, 1929. Two-stroke-cycle engines; pumps, piston.-In a cross-connected engine the power and pump cylinders 2, 3<a> are inclined to one another; the pump shown in Fig. 1 is in line with a power cylinder behind the power cylinder shown. The pump piston has a through passage 8<a> always in communication with the pump compression space and connecting with the transfer passage 3<@e> at the end of the stroke; packing rings 3d are placed above and below the end of the end of the passage. The top of the pump plunger overruns air or mixture inlet ports 3b. In a radial or revolving cylinder engine using similar pumps the pump and power cylinders 2, 3, Fig. 4, are in line, but all the pump plungers are connected to one crank pin 4<b> and all the power pistons to another 4<a>.
Patent GB-1024452-A (GB)
Title: Mounting means for electrical devices
Inventor: HANNAN NEIL TOWNSEND
IPC: H01L23/40
Filed: 1963-09-05
Abstract: 1,024,452. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Oct. 29, 1963 [Sept. 5, 1963], No. 33168/64. Divided out of 1,024,451. Heading H1K. A mounting device for electrical components (e.g. semi-conductor devices) comprises a number of blocks of heat conductive material assembled one on top of the other wherein each block has mounted on it an electrical component and is provided with cooling fins extending outwardly therefrom. In the embodiment (Fig. 1) several units 20 in two parts have the parts arranged in parallel vertical columns 21 and 22. An electrical component is mounted in each of several recesses 3 having internal peripheral serrations, and the two parts 23, 25 which engage to form each recess are provided on an external surface with cooling fins 7. The individual units may be constructed as described in Specification 1,024,451.
Patent GB-1349779-A (GB)
Title: Testing materials to be used as lining for aluminium electrolysis cells
IPC: G01N25/00
Filed: 1971-07-15
Abstract: 1349779 Testing heat-insulating material SWISS ALUMINIUM Ltd 15 July 1971 [17 July 1970] 33233/71 Heading G1S To test an inoxidisable heat-insulating material intended to be used as a lining in an aluminium electrolysis cell, three samples of the material are prepared, one sample being packed in cryolite and maintained at 500 Œ 10‹ C. for at least one day, one sample being packed in cryolite and maintained at 800 Œ 20‹ C. for at least one day, and one sample being untreated, the compression strength at room temperature, apparent density and dimensions of each of the treated samples then being compared with the corresponding values for the untreated sample. A fourth sample may be heated at 800 Œ 20‹C. for at least one day. If the first sample shows no substantial change in properties after testing then the material from which the sample is taken is used in regions of the cell lining which in use are at temperatures of about 500‹C. or less. If the second sample shows no substantial change in properties after testing then the material from which the sample is taken is used in other regions of the cell lining.
Patent GB-841974-A (GB)
Title: A method and apparatus for making spring clamps for devices for securing rails on sleepers
IPC: B21K7/00
Filed: 1958-10-20
Abstract: 841,974. Making rail clamps; angular bending. LESJOFORS A.B. Oct. 20, 1958 [Sept. 19, 1958], No. 33361/58. Classes 83 (2) and 83 (4). A method of making such spring clamps for securing rails on sleepers consists of a U-shaped member having V-shaped limbs and the limb end-portions and web of which are directed inwardly towards each other, such clamps being shown in Figs. 4 and 5 of Specification 706,056, to which reference is made, is characterized by bending a substantially straight blank of bar stock to U-shape, cutting the limbs of the U to exact lengths and bending them over a support into V-shape with an apex angle greater than the final apex angle of the V-shaped limbs, pressing the limbs of the blank thus bent between V-shaped press surfaces to bend the limbs to their final V-shape and bending the end portions of the limbs and the web thereof inwardly towards each other while the remaining limbs are held fixed in the V-shape imparted to them. A length of bar stock is bent to U-shape around a fixed former 29, Figs. 1, 2, on a press table 10 by rollers 28 on a carriage 24 moved along the former by downward movement of a press head 11, a rack 19 on a rod 12 in said head engaging a pinion 20 driving a pinion 22 in turn engaging a rack 23 on the carriage 24, On continued downward movement of the press head 11, the rod 12 being now held stationary and a spring 18 being compressed, the ends of the limbs of the thus-bent U are cut off by blades 31 on the head, cooperating with fixed blades 30. Further downward movement of the press head 11 causes inclined surfaces 32 thereon to bend the limbs of the U over a fixed edge 33 to a V-shape having a greater angle than their final V-shape. The cutting means 30, 31, or special means on the press head, may bend the ends of the limbs upwardly and the former 29, press table 10 or special means on the press head may bend the web of the U upwardly. The carriage 24 may be driven independently of the press head 11. The U is then removed from the press and placed on a die 40 where it may be located by suitable abutments, Figs. 4, 5, formed of two spaced vertical plates with V-shaped recesses 41. A plunger 42 is then moved down, the abutments being retracted, to complete the forming of the limbs of the U to their final V-shape in the die 40. The plunger 42 is formed in two parts movable transversely of one another along a bar 48, On downward movement of the plunger 52 the parts are moved apart by a wedge 49 so as to press the limbs into the final V-shape and on upward movement, together, by cam surfaces 51 so as to clear the bent article. The ends of the limbs and the web are bent over by bars 45 swung over the sides of the die 40 by means on the press head engaging arms 47 or by separate means.
Patent GB-795528-A (GB)
Title: Improvements in or relating to magnetic amplifiers
IPC: H03F9/06
Filed: 1954-11-18
Abstract: 795,528. Magnetic amplifiers. REMINGTON RAND, Inc. Nov. 18, 1954 [Dec. 23, 1953], No. 33450/54. Class 40 (4). Magnetic amplifiers, which are set to a level of magnetization dependent upon an input voltage in one half-cycle of a control voltage and are reset to produce an output in the following halfcycle, are connected in cascade and an indication of a change in value of the input signal is obtained by taking the difference between the output of different stages of the cascade connection. In Fig. 1a three magnetic amplifiers are connected in cascade, amplifier 101 being set by a control voltage Ez when this is sufficient to overcome the input voltage Ec and cause diode 31 to conduct. During the next halfcycle a control voltage Eac drives the core to saturation and produces an output voltage E<SP>1</SP>c which is used to set the second amplifier 103 which has a gain of unity. When amplifier 103 is reset in the next half-cycle by voltage E<SP>1</SP>ac its output E<SP>11</SP>c is used to set the third amplifier 105 which also has a gain of unity. The output Ek of amplifier 105 is produced by voltage E<SP>11</SP>ac in the next subsequent half-cycle and corresponds in value to the output E<SP>1</SP>c of amplifier 101 one full cycle earlier. A subtracting circuit 161 measuring the difference Eo between the outputs E<SP>1</SP>c and Ek therefore registers the difference between time integrals of the input voltage Ec taken during half-cycles of the control frequency spaced apart by one cycle. The outputs E<SP>1</SP>c and Ek of amplifiers 101 and 103 are out-of-phase so that a difference of time integrals of the input voltage separated by a half-cycle cannot conveniently be taken. However, by replacing amplifiers 101 and 103 by push-pull connected amplifiers (see Fig. 2, not shown), outputs E<SP>1</SP>c and E<SP>11</SP>c occur during each half-cycle and a difference may be taken.
Patent GB-1197049-A (GB)
Title: One Step Process for Converting Plutonium Hexafluoride to Plutonium Dioxide
IPC: C01G56/00
Filed: 1969-07-03
Abstract: 1,197,049. Plutonium dioxide. UNITED STATES ATOMIC ENERGY COMMISSION. 3 July, 1969 [29 July, 1968], No. 33540/69. Heading G6R. Plutonium dioxide is prepared by contacting plutonium hexafluoride with hydrogen and an oxygen-bearing gas (e.g. oxygen or steam) at 700‹ to 1200‹ C. and a pressure of 3 to 50 mm. mercury. The amount of oxygen is in excess of that required to form PnO 2  and the amount of hydrogen in excess of that required to form HF. The reactants may be introduced through concentric tubes into a reaction chamber. The product may be sintered at 900-1500‹ C. in a mixture of hydrogen and argon.
Patent GB-1424115-A (GB)
Title: Run-flat pneumatic safety tyre assembly and wheel rim therefor
IPC: B60C15/02
Filed: 1973-07-16
Abstract: 1424115 Tyres and wheels UNIROYAL 16 July 1973 [11 Aug 1972] 33785/73 Heading B7C A safety tyre assembly comprises a pneumatic tyre having an annular groove, e.g. 27, in each sidewall defining a point at which the sidewall will fold upon deflation of the tyre, and an elastomeric annulus 17 positioned between the tyre beads to maintain the beads in firm contact with the wheel rim on which the tyre is mounted in use should the tyre deflate. The assembly is used with a wheel rim having a base 31, a bead retaining flange 33 removably affixed to the base, and a fixed bead retaining flange 35, each of the flanges 33, 35 having a generally axially outwardly extending portion contoured to support a portion of the associated tyre sidewall upon deflation of the tyre. The tyre may have recesses 9a, 11a in its sidewalls adjacent the beads and in the Fig. 1 embodiment the flanges 33, 35 are shaped to fit into these recesses upon tyre deflation, the annulus 17 extending radially outwardly sufficiently to contact the interior surface of the tyre at the tyre crown on tyre deflation. The Fig. 1 embodiment may be modified by extending the flanges 33, 35 so that they terminate axially outwardly of the fold points of the tyre sidewalls in the deflated state of the tyre-(Fig. 5, or by using an annulus 17 of smaller outer diameter which will not contact the interior surface of the tyre crown upon tyre deflation-Fig. 3, not shown). In a modification of the Fig. 5 embodiment (Fig. 4, not shown) the flanges 33, 35 are of the same axial extent but are not contoured to fit into the recesses 9a, lla. The annulus 17 may have a bore 19 in communication with an inflation valve 21, and the flange 33 may be held on the base 31 by a locking ring 37.
Patent GB-488475-A (GB)
Title: An improved machine for cutting sugar confection and the like plastic substances
IPC: A23G3/02
Filed: 1937-12-07
Abstract: 488,475. Cutting sugar confections &c. PONISCH, M. Dec. 7, 1937, No. 33866. Convention date, March 1. [Class 87 (ii)] A machine for cutting sugar confection &c. comprises shaping rollers 2 forming a wide band of material, cutting rollers 4 dividing the band lengthwise into strips, guides 9 above an intermittently moving conveyer 8 for moving the strips apart transversely, a cross-cutting device 24 severing the strips into pieces and a conveyer 34 for removing the pieces in rows to a coating machine. Rollers 10 are provided to feed the strips to the cross-cutter which comprises a knife 24 pivoted on two rotating crank discs 27, 28. The rollers 2, 4 and 10, and the belt 8 are driven intermittently by ratchets and pawls from an adjustable eccentric 22. A sloping base 33 is situated beneath the knife 24, over which base the cut pieces are pushed by the following strip and the conveyer 34 runs at a higher speed than the strips so as to space the rows of cut pieces.
Patent GB-390464-A (GB)
Title: Improvements relating to valves for inflating and deflating flexible air containers
IPC: B63C9/18
Filed: 1932-11-30
Abstract: 390,464. Inflating-valves. MILNE, W., Nooklands, Dumbarton. Nov. 30, 1932, No. 33868. [Class 135.] An inflating-valve particularly applicable for use on inflatable bathing suits has a body part 1 formed with a nipple 2 for insertion in the inflating pipe of the receptacle and with a ported cylindrical guide 3 for a tubular extension 4<1> on the valve member 5. The valve member has a soft face 6 and a spindle 4 extending beyond the mouthpiece 8 whereby the valve may be opened for deflating. The mouthpiece is formed on a member 7 screwed to the body part and has lateral holes to permit the escape of air during deflation. A spring may be housed in the tubular extension 41 and guide 3.
Patent GB-1123928-A (GB)
Title: The soldering of conductive terminals to electrode areas of a semi-conductor junction element
Inventor: GINSBACH CARL HEINZ
IPC: H01L21/60
Filed: 1965-07-28
Abstract: 1,123,928. Soldering. LICENTIA PATENTVERWALTUNGS G.m.b.H. 28 July, 1966, No. 33963/66. Heading B3R. [Also in Division H1] In soldering a conductive terminal 3 to a metallized electrode area on the surface of a semi-conductor device 2, there is a tendency for the solder to spread beyond the periphery of the electrode area and so contaminate the semi-conductor or a protective layer on it. To prevent this the invention proposes that the periphery of the readily solderable metal layer to which solder contact is to be made be surrounded by a barrier consisting of a metal less readily wetted by solder. Thus, in Fig. 1, the layer 5 is of gold and the upper layer of a multi-layer electrode beneath it is of nickel. The solder 7 readily wets the gold but does not spread over the nickel. The device shown is a diffused PN junction rectifier whose electrode layer substantially covers one surface, the gold contact layer 5 covering only part of this surface area. With an alloyed contact gold would be plated on the centre of the contact and nickel around its periphery. For a controlled rectifier with an annular contact, a ring of gold would be deposited and two rings of nickel deposited one inside and one outside the gold ring.
Patent GB-1218811-A (GB)
Title: Combined buff and draw gear
Inventor: CARLSON ROBERT LESLIE
IPC: B61G9/08
Filed: 1968-07-17
Abstract: 1,218,811. Combined buff and draw gear. W. H. MINER Inc. 17 July, 1968, No. 33995/68. Heading B7T. A combined buff and draw gear, for use in a railway vehicle centre sill 22, comprises a housing 52 having a forward portion 54 which receives a coupler 66, a transversely bored-centre section 56 through which passes a draft key 80 extending through slots 28 in the sill, and a rearward chamber section 58 which contains a compressible solid 124, or a liquid, which is acted on by piston assembly 111, 112 during buff, and by piston 114 during draft. The inner faces of section 54 are outwardly divergent and leaf springs 72 welded at one end to these faces retain the coupler 66 in a central position although allowing angular and axial movement. The coupler is retained in section 54 by a key 70, and its rear end contacts the forward part-spherical face of a ram member 82 which locates key 80. The rear end of key 80 is located by piston retainer 90 having slidable therein piston 114. The retainer is fixed relative to the housing 52 by means of a flange 93 engaging a groove in chamber section 58, and a seal 118 and antiextrusion rings 120 surround the piston 114. The piston assembly 111, 112 is fixed to a plate 128 limited in rearward movement by a frame 30. A piston-rod bearing 96 guides the rod 111  and there is slidable therein a sleeve 104 which retains an anti-extrusion ring 108. During buff the housing moves rearwardly causing the solid to compress and move around the piston 112, thereby damping the buff forces. Springs 132 return the housing 52 to its normal position after the buff forces have been removed. During draft, key 80 engages the forward ends of slots 28, whereby the housing moves forward and piston 114 compresses the solid. A sill extension 32 may be bolted to the forward end of the sill. During instillation of the gear in the centre sill a compressible solid 126 is introduced into cavity 109. When installed, a plug in the wall of housing section 58 is removed to release this compressed solid 126, thereby permitting the components of the gear to occupy their normal positions.
Patent GB-798219-A (GB)
Title: Improvements in or relating to electric lighting fittings
Inventor: VILLIERS WILLIAM AMHERST
IPC: F21S8/00
Filed: 1955-11-28
Abstract: 798,219. Electric lighting fittings. GENERAL ELECTRIC CO.. Ltd. Sept. 19, 1956 [Nov. 28, 1955], No. 34034/55. Classes 75(2) and 75(4) In an electric light fitting especially for street lighting which includes an elongated trough of transparent material supported from or integral with an opaque cover so that the trough is substantially horizontal in use, and means for supporting one or more lamps within the trough each with its axis substantially parallel to the length thereof, a transparent hollow enclosure member is sealed to or integral with the trough along each of the elongated sides from whicn light will be emitted in use of the fitting and contains one or more opaque louvres supported within the member so as to intercept light which would be emitted in a direction above the horizontal. In the form shown, the trough 2 of transparent synthetic resin (e.g. that known under the Registered Trade Mark "Perspex"), is carried by a metal e.g. die-cast aluminium, cover 3 and has a shallow bulge 4 over which is cemented a refractory plate 5 for directing the light downwardly. A hollow member 6 of the same material is cemented over the outside of the bulge and supports a louvre 7 held in a groove 10 in the member 6. The walls 8, 9 of the member 6 and the louvre 7 are perpendicular to the surface of the trough 2. The louvre may be of opaque material e.g. aluminium or may be rendered opaque by a coating of paint. A similar coating may be applied to the surfaces 8, 9. The under side of the louvre and of the surfaces 8, 9 may be made light reflecting. Each member 6 may be formed integrally with the trough, the louvres being inserted before the plates 5 are cemented in position.
Patent GB-471734-A (GB)
Title: Improvements in self-lubricating materials and method of manufacturing the same
IPC: C22C32/00
Filed: 1935-12-09
Abstract: A self-lubricating dense metal or alloy composition is made by mixing finely divided metal or alloy with finely divided graphite or lamp-black, compacting the mixture by heating it to the melting or welding temperature of the metal or alloy, and cooling the mixture, or allowing it to cool, under substantial pressure which is maintained at least until the mass solidifies.  The composition may be shaped, heated and cooled in the same mould to form a finished piston-ring, sleeve or bush.  Cooling may be accelerated, or retarded by supplying heat.  The pressure, which is at least 1 atmosphere above normal and may be 100 atmospheres thereabove, may be exerted in a hydraulic press.  The composition may contain up to 50 per cent by weight of graphite &c.  In examples the metals used are: (1) lead and nickel; (2) nickel; (3) tin and copper; (4) copper; (5) iron and nickel.  Bearing metal and bronze also may be used.  Specifications 465,936 and 470,449 are referred to.
Patent GB-1083056-A (GB)
Title: Heald frames
IPC: D03C9/06
Filed: 1966-07-29
Abstract: 1,083,056. Heald frames. SULZER BROTHERS Ltd. July 29, 1966 [Sept. 1, 1965], No. 34109/66. Heading DIE. To avoid trapping operatives hands a free space a is provided between the upper heald frame stave 12 and the heald rail 25a, or its support 38, the space a being at least equal to half the distance e between the heald rails 25, 25a plus 50 mm., so that, when shed, a space of at least 50 mm remains for the operatives hands. Dimensions of heald frames are given.
Patent GB-966758-A (GB)
Title: Improvements in or relating to semiconductive devices and to methods of making them
IPC: H01L21/24
Filed: 1960-10-05
Abstract: The following alloys (percentages by weight) are used in the manufacture of semi-conductor devices (see Division H1): Indium containing 0.001-1.5%, for example 0.1% cadmium; Indium containing 0.03-10% cadmium; Indium containing 0.0001-3% zinc.
Patent GB-1178039-A (GB)
Title: Improvements in or relating to Feedback Amplifier Systems
IPC: H03H11/48
Filed: 1967-07-26
Abstract: 1,178,039. Negative feedback amplifying Circuits. SIEMENS A.G. 26 July, 1967 [27 July, 1966], No. 34206/67. Heading H3T. An amplifier is provided with a first negative feedback path comprising a two-terminal network # s  in series with both the input and output circuits of the amplifier, and a second negative feedback path comprising a T-network # 1 , # 2 , # p  connected in parallel with both input and output circuits of the amplifier. It is shown in the Specification that if the series arms # 1 , # 2  of the T-network are resistive and the shunt arm # p  reactive, while the two terminal network # s  comprises resistance and reactance in parallel, then by retaining relationships between these resistances and reactances which are laid down, either (1) with an arbitrary real output load impedance Za the input impedance W E  of the amplifier can be made real; or alternatively (2) with an arbitrary real source impedance R g  the output impedance W A  of the amplifier can be made real. An amplifier stage of the first type may be followed by one of the second type by the interpostion of a buffer stage which may comprise a grounded-emitter transistor stage with negative feedback (Fig. 3, not shown).