baber/WOPTO huggingface dataset:
Patent GB-464230-A (GB)
Title: An improved folding step for vehicles
IPC: B60R3/02
Filed: 1936-03-18
Abstract: 464,230. Vehicle steps. OVERTON, W. March 18, 1936, No. 8125. [Class 108 (i)] A folding step for a vehicle has the tread part formed as a plate with a thickened bead at one edge, a ribbed part on one surface and a lip at the other edge, parts of the bead being removed to form a hinge in conjunction with an attachment part. As shown, the tread plate a has a beaded edge c, parts of which are removed and recessed to accommodate a thickened part f on an attachment plate b, a hinge pin being provided as shown. At the other edge the tread plate is formed as shown at d to provide a manipulative lip and serve as engaging means for a spring latch j, a buffer stop h being provided. Two attachment plates b are adapted to be secured together by a strip h secured in recesses in the plate. Both the tread and attachment plates are adapted to be cut from extruded plates or bars. Serrations e are provided on the tread plate a.
Patent GB-126792-A (GB)
Title: Improvements in or relating to Vehicle Wheels.
IPC: B60C7/28
Filed: 1918-05-15
Abstract: 126,792. Dunlop Rubber Co., and Hamill, W. W. May 15, 1918. Detachable-rim attachments to wheels.-A band tyre B is detachably secured to a wheel by means of a distance-ring D interposed between the tyre base C and the rim A, the rim having taper recesses on both surfaces to receive transverse wedges E, E'. The two sets of wedge seatings may incline in opposite directions, and the wedges may have bifurcated ends which are upset after assemblage. The wedges may also be operated by screws. According to the Provisional Specification, the distance-ring may be dispensed with, the wedge seatings being formed on the wheel rim to co-operate with separate transverse wedges, which may be adjusted by taper-headed radial bolts.
Patent GB-915314-A (GB)
Title: Improvements in or relating to electric waveform generators
Inventor: HARLING DENIS WILLIAM
IPC: H03K4/02
Filed: 1960-03-08
Abstract: 915,314. Transistor circuits. GENERAL ELECTRIC CO. Ltd. March 2, 1961 [March 8, 1960], No. 8183/60. Class 40 (6). A staircase waveform generator comprises a capacitor 1 charged or discharged at a constant rate, a switching device, such as transistors 10, 11 being closed when each step is required so that the voltages on capacitors 1, 2 are equalized, thus providing the required waveform across capacitor 2. As shown, transistors 9, 12 are made conductive by pulses fed to terminals 31, 18, charging capacitors 1, 2 to - 12V. from line 13. At the end of each pulse fed to terminals 31, 18, transistors 9, 12 are cut off, enabling capacitor 1 to discharge linearly via a constant current circuit comprising transistors 25, 26. When each step is required, a short pulse is applied between terminals 23, 24, rendering transistors 10, 11 conductive so that the voltage across capacitors 1, 2 falls to the arithmetic mean of the voltages across them previously. Transistors 10, 11 are cut off at the end of each pulse at terminals 23, 24, so that capacitor 1 continues to discharge until the next step is required. The staircase is terminated by a further pulse at terminals 31, 18, driving transistors 9, 12 into conduction and recharging capacitors 1, 2. Transistor 26 minimizes the effect of temperature change.
Patent GB-851528-A (GB)
Title: Seam welding by high-frequency resistance heating
Inventor: RUDD WALLACE COLLINS
IPC: B23K13/04
Filed: 1957-03-13
Abstract: 851,528. Welding by pressure. MAGNETIC HEATING CORPORATION. March 13, 1957, No. 8232/57. Class 83 (4). In welding opposed edges of elongated metal portions, the portions are advanced to travel past a welding-point, the edges being firmly retained together at least in the region of the welding point, electric current having a frequency of at least 100 kilocycles per second is applied to the portions by at least two electrodes, one of which is adjacent to the welding point and another of which is at or near the opposed edge of each portion substantially in advance of the welding point and the current is led along a path in closely-spaced relationship to the opposed edges in the region in advance of the welding point between the electrodes. In an embodiment a gapped metal tube 10, Fig. 1, is advanced by rollers 11, 12 which press the gap edges together at the weld point w and the edges are heated by current, e.g. 300, or 400 kc. per sec. applied to a contact 14 slidable on the upper surface of the tubing and the gap edges and to a grooved contact 20 slidable on the tubing upper surface before, at or beyond the point w. The current flows from the contact 14 in parallel paths along the edges to the contact 20 and returns along a conduit 27 above the edges to concentrate the current in the edges. Cooling water &c. is supplied through the hollow current supply conduits. The contact 14 may engage only the upper surface, only the edges or only the inner surface of the tubing, the contacts may be rollers, and the gap may be closed before the contact 14 is reached. In a modification in which the gap is closed before the contact 14 the further contact 20a, Fig. 4, engages the top surfaces of the rollers 11a, 12a so that the current in parallel paths diverges at the weld point and passes through the rollers into the contact 20a. In this case the conductor 27a may be non-circular. In a further modification strips 35, 36, Fig. 9, of magnetic material of high volume resistivity, e.g. sintered iron carbonyl and synthetic resin or sintered magnetic oxide and insulation material are secured to the contact 14a alongside the conductor 27a and another strip is provided beneath the seam. The magnetic material increases: the impedance to current flow in the tubing. Two strip edges instead of tube edges may be welded and if they are of different metals the magnetic material may be differently spaced from the seam. Some or all of the magnetic strips may be replaced by non-magnetic electrically-conductive material, e.g. copper, which reduces the impedance to current flow in the metal being welded. Specifications 748,528, 851,529 and 851,530 are referred to.
Patent GB-1215535-A (GB)
Title: Improvements in and relating to headers for the envelope of a semiconductor device
IPC: H01L23/045
Filed: 1968-02-20
Abstract: 1,215,535. Headers for semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 Feb., 1968 [23 Feb., 1967], No. 8255/68. Heading H1K. A header for a semi-conductor device such as a transistor 12 comprises a thermally conductive plate 2 carrying the device 12 and mounted on a slab 1 of a readily weldable material. The slab 1 has upstanding tubular projections 7, e.g. punched through it, which projections are located in corresponding apertures in the plate 2 and which serve as lead-through apertures for terminal leads 5. The plate 2 may be of Cu, hard-soldered with Ni or a Cu/Ag eutectic alloy to the N-plated soft steel slab 1. The slab 1 may also be of a Fe/Ni/Co alloy. The terminal leads 5 may be of Fe/Ni or Fe/Ni/CO alloy, set in glass beads 6. The melting of the beads 6 to seal the lead-through apertures and the soldering of the plate 2 to the slab 1 may take place simultaneously in a furnace having a slightly reducing atmosphere; e.g. N 2  containing a little H2. Finally a cover 15 is welded to the slab 1 as shown.
Patent GB-421400-A (GB)
Title: Improvements in or relating to valves
IPC: F16K5/22
Filed: 1933-03-18
Abstract: 421,400. Conical valves. CARPENTER, P., 14, East Jackson Boulevard, Chicago, U.S.A.. March 18, 1933, No. 8286. [Class 135] [See also Group XXXIV] In a tapered plug valve, the plug 15 and casing 5, have, at one end at least, cylindrical portions 16, 12, of substantially the same diameter as that of the conical part to which it is adjacent, and one or more lubricant passages 22-24 introduce lubricant to one or more lubricant channels formed in the casing and /or plug member, and positioned at the junction of the tapered and cylindrical portions. As shown, both plug and casing have annular channels 11, 19, 13, 20, which are supplied, through the passages 22, 24, from a chamber 21 in the plug 15. The chamber 21 has a screwed plunger 33 for putting the lubricant under pressure to move the plug 15 axially of its seat against the action of a spring 31. The annular channels 11, 19, 13, 20, extend in part beyond the tapered surface of the plug member or casing. Lubricant leakage at the ends of the valve is prevented by packing 35, 29, engaging the cylindrical parts of the plug and compressed by a gland 36 and cover 26 respectively. In a modification, the annular channels are formed wholly in the plug, and in another modification, they are formed wholly in the casing.
Patent GB-1373686-A (GB)
Title: Valves
IPC: F16K1/20
Filed: 1972-02-23
Abstract: 1373686 Valves R KRAUSE [trading as ROBERT KRAUSE KG] 23 Feb 1972 [4 March 1971] 8286/72 HeadingF2V  A valve for controlling the rate of flow of liquid in a main flow direction and in a reverse flow direction in accordance with direction of flow, comprises a pivoted closure element 5 which assumes the open position shown in broken line during main flow, and the closed position shown in full line during reverse flow whereby the latter flow is restricted by orifice 7. Moreover, the element 5 is of buoyant material and has a cavity 8 in which air is trapped when the element is in its open position so that upon the onset of reverse flow, the buoyancy generated by the trapped air lifts the element towards its closed position. A filter nozzle (not shown) may be formed integrally with the valve housing 1 or screwed into threaded passage 2 thereof.
Patent GB-580769-A (GB)
Title: Improvements relating to pulse signalling systems
IPC: H03K7/08
Filed: 1944-05-02
Abstract: 580,769. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and SCULLY, C. T. May 2, 1944, No. 8300. [Class 40 (v)] Signal-modulated electric pulses are produced by applying a repetitive wave of pulse frequency to render operative a normally inoperative oscillation generator of higher frequency, the tuned circuit of which is shunted by a unilateral conductor to suppress alternate halfcycles. The pulses thus produced are modulated in duration by varying the frequency of the oscillation generator ; or in time phase by varying the phase of the repetitive wave. As shown, the generator comprises a valve V1 with a tuned anode circuit L1, C1 back-coupled to the grid circuit and shunted by a rectifier D. The cathode is biassed by resistances r2, r3 so that the generator is normally quiescent, and is only rendered active at the peak input from a source S supplying waves of pulse frequency to the grid circuit. The generator produces a pulse in the form of a single half-cycle, the return half being suppressed by the rectifier. This pulse is shaped and limited by known means to a rectangular form. It is modulated in duration by applying the signal to the grid of a valve V2 which is connected across the tuned circuit L1, C1 and-functions by the Miller effect, or otherwise, as a variable reactance, thereby varying the frequency or period of the generator V1. In a modification (Fig. 2, not shown) the signal is applied to vary the phase of the source S thus producing a corresponding variation in the phase or timing of the pulse.
Patent GB-452987-A (GB)
Title: Improvements in cop-carrying spindles for weaving looms
IPC: D03J5/08
Filed: 1935-03-18
Abstract: 452,987. Loom shuttles. BARZAGHI, A., Legnano, Italy. March 18, 1935, No. 8350. Convention date, March 17, 1934. [Class 142 (iii)] To prevent the weft from being loosened due to the blows of the picker, the cop is carried by a resilient sheath 4 having slits 7 and held against a shoulder 5 on the spindle 2 by a spring 3 to which it is secured and which engages a stop 6 on the peg. The sheath may be replaced by rings or longitudinal strips which are elastic in a radial direction. In some cases, the free end of the spring is wound in conical form.
Patent GB-724711-A (GB)
Title: Improvements in bogie frames for railway and like vehicles
Inventor: DICK LESLIE BIRTIE
IPC: B61F3/08
Filed: 1953-03-26
Abstract: 724,711. Bogies for railway vehicles. METROPOLITAN-CAMMELL CARRIAGE & WAGON CO., Ltd. March 26, 1953, No. 8354/53. Addition to 694,050. Class 103 (6). In a bogie frame for railway and like vehicles as claimed in the parent Specification, the bearings on the side members for the wheel axles permit or are mounted so as to permit pivotal movement between each side member and the wheel axles about an axis parallel to the longitudinal axis of the bogie, such axis being above the axis of rotation between such side member and a or any cross transom, whereby angular movement of the side members relative to the wheel axles causes the transom or transoms to be raised. In the construction shown, a bogie frame comprises two side members 1 connected by a transom 2 in the centre of which is a bearing housing 3 adapted to receive a pivot trunnion 4 projecting from the underframe 5 of a vehicle structure. The trunnion 4 has a bearing bush 6 with a part spherical surface which engages a complementary inner surface of a split bearing ring 7. The weight of the vehicle is carried by spring-loaded slidable plungers 8. Each end of the transom 2 is connected to a side member 1 by means of trunnions 11 held in place in holes 13 in walls 14. The ends of the wheel axles fit in bores in the inner races of spherical rubber bearings 20 which are mounted in housings 17 provided at the ends of the side members 1. The roller bearings permit limited angular movement of the side members relatively to the axles about longitudinal axes. These axes pass through the centres 20 of the wheel axles and are above the axes of the trunnions 11. The spherical roller bearings may be replaced by wheel axle bearings in which each bearing is borne in the side members by spherical or part-spherical mating surfaces or by trunnions parallel to the longitudinal axis of the bogie.
Patent GB-451444-A (GB)
Title: Improvements in the manufacture and production of n-vinyl compounds
Filed: 1935-03-18
Abstract: N-Vinyldiarylamines are manufactured by causing acetylene to act at elevated temperatures, e.g. 100--200 DEG  C. or higher, on diarylamines in the presence of substances having a strongly alkaline reaction or of alkali metals, e.g. the oxides, hydroxides and alcoholates of the alkali metals, or metallic potassium, if desired together with tertiary heterocyclic bases, e.g. pyridine or quinoline.  The reaction may be carried out in a pressure-tight vessel into which the acetylene, advantageously under increased pressure, is led, preferably in admixture with inert gases, e.g. nitrogen, methane or hydrogen, or in a tower, the operation being in stages or continuous.  Diluents such as alcohols, e.g. methyl, ethyl or butyl alcohol, glycols, e.g. ethylene or diethylene glycol, or hydrocarbons, e.g. cyclohexane, benzene, toluene, tetrahydronaphthalene or decahydronaphthalene may be employed. The products may be hydrogenated to produce the corresponding aromatic or cycloaliphatic ethyl compounds, and may be polymerized by heating or by the action of polymerization catalysts.  In examples: (1) a mixture of acetylene and nitrogen under pressure is passed into phenyl-a -naphthylamine containing potassium hydroxide and pyridine, producing N-vinylphenyl-a -naphthylamine; the corresponding b -naphthylamine derivative may be similarly prepared; (2) acetylene is similarly reacted with diphenylamine in the presence of metallic potassium or sodium, or potassium or sodium hydroxide, to yield N-vinyldiphenylamine; (3) acetylene is similarly reacted with p-tolyl-a -naphthylamine in the presence of potassium hydroxide, to produce N-vinyl-p-tolyl-a -naphthylamine; (4) a -a <1>dinaphthylamine similarly yields N-vinyl-a -a <1>-dinaphthylamine; (5) acetylene is reacted with diphenylamine in xylene in the presence of potassium hydroxide, yielding N-vinyldiphenylamine.  Other diarylamines specified are: phenyl-p-tolylamine and N-phenyl-2-aminoanthracene.
Patent GB-526461-A (GB)
Title: Improvements in or relating to means for cooling aircraft engines or engine radiators
IPC: F01P11/10
Filed: 1939-03-16
Abstract: 526,461. Aircraft engine accessories. BUGATTI, E. March 16, 1939, No. 8495. Convention date, March 17, 1938. [Class 4] In a cooling system for an aircraft engine or engine radiator located in the rear of the fuselage, air enters through openings in the leading edge of a tail surface and passes forwardly through the radiating elements to openings in the fuselage at a part thereof where there is a region of reduced pressure. As shown, air enters through openings 4 in the leading edge of the tail plane 2 and is led through the radiator 3 by means of conduits fixed with guide blades 6 opening into a divergent conduit 5. The air escapes through openings 8 in the fuselage walls.
Patent GB-547514-A (GB)
Title: Improvements in puncture sealing inner tubes of pneumatic tyres
IPC: B29D23/24
Filed: 1941-07-07
Abstract: 547,514. Rubber compositions. UNITED STATES RUBBER CO. July 7, 1941, No. 8537. Convention date, Nov. 22, 1940. [Class 70] [Also in Group XXXIV] A layer 12 of very soft puncture-sealing rubber composition, having a hardness of approximately 15 durometer, is integrally bonded with the tread portion of the wall of the air tube, the rubber of which has a hardness ranging from 40 to 70 durometer. The layer is applied to the outside of a tube mounted on a curing pole, and the tube is partially vulcanized, removed and turned inside out and then vulcanized further in a cold mould. By varying the duration of the two vulcanizing periods the extent of compression in the soft layer may be varied. The material of the soft layer may have the following composition in parts by weight :- Rubber 100 ; softener 8 ; light mineral oil. known as Ambrex D oil 30 ; soft carbon black 2 ; anti-oxidant 1 ; sulphur 3 ; and accelerator 1.1.
Patent GB-308470-A (GB)
Title: Improvements in doubling and twisting machines for use in the production of yarns orthreads
IPC: D01H13/04
Filed: 1928-03-21
Abstract: 308,470. Oddy, W. March 21, 1928. Roving and thread guides; rollers.-In doubling and twisting machines wherein vertical draw drums are used to deliver yarns to a guide eye where they are gathered for twisting together, the draw drums are formed with parts D, D<1> of different diameter so that a longer length of yarn A than that of a yarn B is delivered to the guide G in the trap lever, thereby ensuring an effective binding of the yarn A by the yarn B and incorporation of any stray fibres thereof when spinning material such as horsehair, goat's hair or the like. The larger drum may be secured to the smaller by means of its spindle S and a nut S<2>. The yarn B passes through a central aperture in the guide G, and the yarn A through a lateral passage G<2>.
Patent GB-416795-A (GB)
Title: Improvements in or relating to submarine electric signalling systems
IPC: H04M11/06
Filed: 1933-03-21
Abstract: 416,795. Long distance transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Knoop, W. A. ; 36, South St. Paul Road, Hempstead, New York, U.S.A.) March 21, 1933, No. 8559. Convention date, March 31, 1932. [Class 40 (iv).] In a system for simultaneous submarine telephony and telegraphy, the telephone receiving circuits RE and the telegraph receiver TR are connected in series with a main signalling conductor 10 and a balancing sea-earth conductor 11, while the transmitting equipments 21, TT, are connected so as to transmit currents over the conductors in parallel. The conductor 10 may be loaded with tapes LM and the balancing conductor 11 is adapted to extend as a twin with the main conductor for a distance equal to that at which the depth of the sea forms a sufficient shield and then as a separate cable which is earthed through an impedance 14. The conductors together with the earthed cable armour 12 are connected as shown through a high-pass filter HPF to the telephone transmitting and receiving equipments and through the low-pass filters LPF to the telegraph equipment. When the telephone transmitter is taken into use, voice-relays 22, 23 are operated to disconnect the receiving equipment and connect the transformer 30 over contacts S1 in such a manner that signals are sent over the conductors 10, 11 in parallel. Similar parallel transmission occurs when the telegraphic transmitter TT is taken into use. The respective receiving equipments are connected in series with the conductors 10, 11, the telephone equipment being connected over the contacts R1 R2 of the voice-operated relays. The receiver circuits RE are shielded by a double shield OS, IS, of electrically conductive material in order that capacitative interference between the telephone transmitter and receiver may be prevented in the event of faulty operation of the relays 22, 23 when the transmitter is taken into use.
Patent GB-580266-A (GB)
Title: Improvements in and relating to anchor pins suitable for brakes
IPC: F16D65/09
Filed: 1944-05-05
Abstract: 580,266. Bolts; hinges. SCHNELL, S. May 5, 1944, No. 8566. [Classes 65 (ii) and 89 (i)] [Also in Groups XXII and XXXIV] Anchor pins 5, e.g.; for brake shoes, are secured to the back plate 1 and re-inforcing plate 6 welded thereto, by swaging over the cylindrical parts 12, 15 at 11, 16 to form frusto-conical enlargements which are receive in the flared ends of the openings in the plates 1, 6. The parts 12, 15 are of different diameters, the resulting shoulder resting on a step in the opening receiving the pin.
Patent GB-116744-A (GB)
Title: Improved Means for Discharging the Debris Formed by Coal Cutting Machines.
Inventor: WILKS ALBERT
IPC: E21C35/20
Filed: 1917-06-15
Abstract: 116,744. Wilks, A. June 15, 1917 Endless-chain conveyers with slat and lath carriers and linked carriers.-A conveyer for removing debris formed by coal-cutting machines comprises side-chains and bars, the links of the chains having recesses to receive the pointed ends of the bars.
Patent GB-1205703-A (GB)
Title: Light-resistant coating materials
IPC: C08G18/62
Filed: 1968-02-22
Abstract: 1,205,703. Light resistant coating. BADISCHE ANILIN- & SODA-FABRIK A.G. 22 Feb., 1968 [23 Feb., 1967], No. 8608/68. Heading C3P. A light-resistant coating is prepared by reacting a polyisocyanate or blocked polyisocyanate not containing any aromatic radicals with a copolymer of:- (1) 15 to 40% by weight of a monoester of acrylic and/or methacrylic acid with an aliphatic polyhydric alcohol; (2) 5 to 70% of an ester of acrylic and/or methacrylic acid with an alkanol which forms homopolymers having a glass temperature of from 3-120‹ C; (3a) 10 to 55% of a vinyl aromatic or isopropypenyl aromatic hydrocarbon of 8-14 carbon atoms or (3b) 10 to 20% of a vinyl ester of an alkane monocarboxylic acid of 2-5 carbon atoms; (4) 0 to 10% of a vinyl ester as in (3b); and (5) 0 to 20% of one or more other olefinically unsaturated monomers whose polymerized radicals do not react with isocyanates, the polymer having been obtained by polymerization in an organic solvent inert to isocyanates in the presence of a regulator which is an organic sulphide not containing a mercapto group. The regulator is preferably a dialkylxanthic disulphide. In the examples the following copolymers are prepared in solution in the presence of azodiisobutyronitrile and diisopropylxanthic disulphide, (1) butanediol monoacrylate, t-butylacrylate, styrene and optionally methylmethacrylate, vinyl acetate or acrylonitrile, (2) butanediol monoacrylate, vinyl acetate and t-butyl acrylate, (3) as (2) and including styrene, ethylene glycol monoacrylate and hexanediol monoacrylate and (4) ethylene glycol monoacrylate, styrene and t-butylacrylate. The copolymer solutions are mixed with N, N<SP>1</SP>, N<SP>11</SP> -  tris - (isocyanatohexyl) - biuret and optionally hexamethylene isocyanate, and/or a pigment such as rutile, to form compositions suitable for coating.