baber/WOPTO huggingface dataset:
Patent GB-206814-A (GB)
Title: Improvements in let-off brake apparatus for the warp beams of looms
IPC: D03D49/08
Filed: 1923-07-02
Abstract: 206,814. Boixade, R. A. Nov. 10, 1922, [Convention date]. Letting-off warps.- A warp beam 7 having one or more brake pulleys 8 at one or both ends and each surrounded by two half collars 9, 10 hinged together and to the loom frame at 11 has a frame 19 pivoted at 20 to one half collar 9 and embracing the end 11<1> of the other half collar. The two half collars are forced together by a hand lever 21 screwed through a block 23 forming part of the frame 19. The lever 21 can be turned into the position shown in dotted lines to remove the brake pressure. The Specification as open to inspection under Sect. 91 (3 (a)) describes also a braking device in which the two half collars 9, 10 Fig. 1 (Cancelled), are controlled by a screw 12<1> and a hand wheel 15 at the front of the loom. The wheel 15 may be locked in any position by means of a pawl 16. This subject-matter does not appear in the Specification as accepted.
Patent GB-124156-A (GB)
Title: Improvements in Anchor Devices for the Cables used in the Power Cultivation of Land.
Inventor: ROBERTS THOMAS JOHN EDWIN
IPC: A01B3/72
Filed: 1917-11-07
Abstract: 124,156. Roberts, T. J. E., and Belgrove, H. G. Nov. 7. 1917. Ground anchors.- An anchor device for the cables of haulage ploughs &c. of the type described in Specifications 8555/15 and 124,002 [Class 6 (i), Cultivating implements &c.] comprises a frame 48 having two parallel longitudinal members 49, 50, of which the member 49 carries a number of shafts 51 to receive dished disk-coulters 52 having their concave faces arranged at an incline and facing toward the cable. The other member 50 of the frame has a hook 53 slidable along it and adapted to receive the end of the cable. The position of the cable can thus be adjusted for one or two traverses of the plough without moving the anchor. The anchor carries a hand-operated capstan 54, around which passes One end of a rope 61 extending round a pulley 62 mounted on a stationary spike 63, the other end of the rope being secured to the frame 48. By turning the capstan, the anchor 48 may be drawn along the headland.
Patent GB-380465-A (GB)
Title: Improvements relating to separators for electric accumulators
IPC: H01M50/414
Filed: 1931-06-13
Abstract: Separators for electric accumulators are made by vulcanizing rubber latex free from gas evolving substances, and containing 40-60 per cent of rubber, and 20-30 per cent of sulphur (based on the rubber content), in the wet state, and subsequently evaporating the water leaving a microporous body.  Accelerators and anticoagulants may be added.  The latex may be spread, or filled into moulds and is vulcanized in a moist atmosphere, when it solidifies, entrapping the serum.  Specifications 1111*/14, 238,870, 240,430, 257,561, 262,179, 338,698, [all in Class 70, Indiarubber &c.], and 346,588 are referred to.
Patent GB-781027-A (GB)
Title: Improved process for the manufacture of piston rings
IPC: C21D9/40
Filed: 1955-06-15
Abstract: A process for the manufacture of piston rings comprises (a) stack casting the rings in a sand mould from a cast iron having the following constituents, 3-4 per cent C; 1.5-3.1 per cent Si; 0.6-1.5 per cent Mn; 0.8-2.0 per cent Cu; 0.05-0.7 per cent P; 0.02.-0.15 per cent S; 0 to 0.05 per cent Tc. (b) heating to produce austenite and quenching to form martensite; (c) heating to 420-550 DEG C. to produce graphite nucleation; (d) heating for graphitizing at a temperature above the end of the entectoid transformation and cooling in still air; (e) tempering to adjust the final hardness.  The austenization may be at 760 to 920 DEG C. followed by quenching in oil, or the quenching may be carried out in two steps, the first to a temperature just above the start of the martensite transformation and the second to a temperature at which the martensite transformation is complete.  The rings may be machined and then heated for 5-7 mins. at 5803C. while the ends are held apart.  Specifications 738,094 and 742,400 are referred to.
Patent GB-659756-A (GB)
Title: Modulator
IPC: H03C1/16
Filed: 1948-06-28
Abstract: 659,756. Valve modulating circuits. RADIO CORPORATION OF AMERICA. June 28, 1948, No. 17346. Convention date, June 27, 1947. [Class 40 (v)] In a single-ended video modulator for television signals an open-ended line coupled to the grid or anode of the carrier amplifier, and to A a point of which, - distant from the open end, 4 modulation is applied, is used to short-circuit the modulator to carrier frequency, thus dispensing with a radio-frequency byepass condenser which would reduce the band-width of the modulator output circuit. In Fig. 2 a tuned loop 14 is coupled to that portion of an open- A ended line L, of length -at carrier frequency, 4 nearer to its connection across the grid of a power amplifier valve 24, and the anode of a video modulator valve 15 is connected to the centre of the grid-connected member of the line, TC indicating a condenser across the grid end of the line for tuning the valve 24 grid circuit. In Fig. 2a (not shown), the cathode of the modulator valve 15 is series-connected to the anode-connected member of an open-ended line A of length - connected between earth and an 4 anode loop of the valve 24 coupled to an output loop 3. The Specification as open to inspection under Sect. 91 comprises also, in Figs. 3, 3A (Cancelled, not shown), a series tuned circuit connecting the tuned grid or tuned anode circuit of valve 24 to earth to byepass the modulator. In Figs. 4, 4A (Cancelled, not shown), the anode or cathode of the modulator valve is connected to the centre-tap of a tuned grid or tuned anode circuit inductor of valve 24, the inductor being connected to earth by a tunable capacity made equal to the input or output capacitance of valve 24. The latter capacitances may be supplemented by a further condenser to produce electrical balance (Figs. 5, 5A, Cancelled, not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-653621-A (GB)
Title: Improvements in or relating to radio aerials
Inventor: CAFFERATA HAROLD
IPC: H01Q21/24
Filed: 1947-07-01
Abstract: 653,621. Aerials. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 1, 1947, No. 17363. [Class 40 (vii)] An aerial for flying control and similar radio communication where omnidirectional properties in both horizontal and vertical sense are required comprises a plurality of elements so arranged and connected to the transmitter or receiver as to constitute between them three quadrants each lying in one of three mutually perpendicular planes and each having the radiation of one arm 180 degrees out of phase with the radiation of the other arm. The preferred embodiment consists of a horizontal quadrant (arms 1 and 2), with a vertical dipole (arms 3 and 4), the two elements of the horizontal quadrant being perpendicular to each other and to the dipole. Arms 2 and 3 are separated from arms 1 and 4 by an insulating collar 5, and the system is mounted on a mast 8 and fed by a transmission line 9. A co-axial feeder runs up the centre of arm 4 as illustrated in Fig. 4 (not shown), and the outer conductor is connected to the elements 1 and 4 while the central conductor passes through the collar 5 and is connected to elements 2 and 3. An enlargement of the inner conductor within arm 4 acts as a matching transformer or, in an alternative riveted construction described in the Provisional Specification, matching is obtained by means of a balun quarter-wavelength collar (Fig. 3, not shown). The lengths of the arms may be adjusted by means of sliding extensions 1<SP>1</SP>, 21, 31 and 41, and two stubs, 10 and 11, are provided on the feeder 9 to correct for any residual impedance mismatch after the arms have been adjusted. The dimensions shown are for a frequency of operation of about 165 Mc/s. In order to maintain signal strength in the zenithal zone a reflecting system is preferably provided in the horizontal plane beneath the aerial and may consist of radial and circumferential conductors or wire netting as in Fig. 2 (not shown).
Patent GB-1380811-A (GB)
Title: Semiconductor device
IPC: H01L23/36
Filed: 1972-04-14
Abstract: 1380811 Semi-conductor devices RAYTHEON CO 14 April 1972 [26 April 1971] 17387/72 Heading H1K A microwave semi-conductor device (Figs. 1, 2, 3) comprises a thermally and electrically conductive heat sink slab 10 of e.g. Au supporting two regions of continuously connected semiconductor material 11 which may be, e.g. Si, GaAs, InP; the regions each comprising a series of elongated portions of width < 10 x thickness and length > 10 x thickness extending mutually orthogonally and intersecting to form a matrix. A layer 12 of, e.g. Pt is interposed between the slab and the elements and prevents in-diffusion of Au, and a further layer 13 of, e.g. Pt overlain by, e.g. Au electrode layer 14 is formed on the opposite side of the semiconductor material 11, which may be formed from single crystal GaAs doped with S or by epitaxial growth doped with Te. The device is etched to shape over a photoresist mask. Slab 10 is mounted on a thermally conducting insulant base 15 of, e.g. BeO 2  carried by wall 16 on the bottom of a conductive chamber having ends 17, top 18, and sides 19 to which coaxial lines 20 are attached; whose inners are connected to the layers 14 of the respective semi-conductor devices by thermal compression bonded thin wires 23, and the interior of the chamber may be filled with epoxy resin, a gas, or may be evacuated. In an oscillator (Fig. 4, not shown) a coaxial feeds a cavity or antenna load and is connected over a #/4 choke section to an adjustable constant current power supply returned to the outer of the remaining coaxial whose inner is shorted to the outer, over a #/4 stub adjustable to vary the resulting oscillation frequency of the system. The thickness of the insulant member 15 is such that 10, 16 operate as a # plate transmission line of the characteristic impedance of the coaxials. In an amplifier (Fig. 5, not shown) a signal source is coupled to a 3-part circulator whose second part is coupled to the input coaxial of a semi-conductor amplifier of the kind described in conjunction with Figs. 1, 3, energized from a constant current adjustable power supply with its output coaxial coupled to antenna or further amplifier. The third part is coaxial coupled to a matched load to absorb reflections from mismatches. The devices may operate as tunnel diodes, avalanche diodes, or Gunn devices. Specification 1,368,516 is referred to.
Patent GB-356262-A (GB)
Title: Improvements in process of rolling sheets
IPC: B21B39/04
Filed: 1930-06-05
Abstract: 356,262. Rolling sheets. AMERICAN ROLLING MILL CO., 703, Curtis Avenue, Middletown, Ohio, U.S.A. June 5, 1930, No. 17475. Convention date, Oct. 4, 1929. [Class 83 (iv).] Flat sheets of substantial width and of relatively thin gauge are produced in a three-high rolling mill by passing hot rough sheets first between the small middle and large lower rolls and then back between the middle and upper rolls until reduced to dimensions suitable for matching, whereupon two or more pieces are matched and the rolling continued in the same manner. The rough plates are passed from a continuous furnace 1 to a table 2 then between the lower rolls 3, 4 to a rocking table 5 which may be mechanically operated, the plates are then passed back between the middle and upper rolls and the process continued without reheating. A water spray 7 is provided for cooling the rolls.
Patent GB-458416-A (GB)
Title: Improvements in or relating to moulds for casting metals
IPC: B22C9/06
Filed: 1935-06-18
Abstract: 458,416. Moulding-machines; casting- machines. MILLSPAUGH, W. H., 101, Columbus Avenue, Sandusky, Ohio, U.S.A. June 18, 1935, No. 17518. [Class 83 (i)] Moulding processes; moulds; pattern8.-A centrifugal mould 10 has a lining 30 of refractory material with longitudinal vents 26, Fig. 7, formed by rods 25, Fig. 1, connected to the pattern 20. The mould has a bottom closure 13 with metallic or refractory lining 18, opening 12 to centre the pattern, and vents 16, closed during packing by a fusible band 19 of wax, tar, bitumen, &c. The pattern is progressively withdrawn during packing. The mould is then baked to harden the material 30 and melt out the band 19. An upper closure 50, Fig. 7, having a lining 18a, similar to the lining 18, and a sealing ring 52 is then secured in place. In a modification, the rods 25 extend into corresponding holes 41, Fig. 5, in the bottom closure and these may have an annular cavity 42 to receive foreign matter and inwardly extending vents 44.
Patent GB-148751-A (GB)
Title: Improvements relating to automobile vehicles
IPC: B62D25/24
Filed: 1920-06-28
Abstract: 148,751. Soc. Anon. le ZÞbre. July 25, 1919, [Convention date]. Void [Published under Sect. 91 of tho Act]. Dust-excluding casings.-The working parts of motor road vehicles are protected from dust by means of flat plates d on each side of the vehicle stretching between a longitudinal frame member c and flanges b formed on or attached to each side of the motor and gear box casings. In the preferred form, the plates engage the under side of both members as shown, but they may engage the upper side of the flanges b or the upper side of the lower flange of the member c. Any convenient securing means can be used, the illustrated form comprising pivoted spring plates e which can be turned to engage the upper sides of the members b, c. In a modified construction, the distance pieces g are omitted and the inner ends of the fasteners rest flat on the plate d.
Patent GB-722013-A (GB)
Title: Manually propelled toy horse
IPC: A63G19/00
Filed: 1951-07-25
Abstract: 722,013. Horse and like velocipedes. KRYSCIAK, B. Oct. 17, 1952 [July 25, 1951 No. 17570/51. Classes 136(2) and 136(3). In a toy horse having a body 1, a head 2. and legs 3, 4 mounted on wheels 27, 47, a saddle 15 is mounted on a pivotal member 11 connected through a cable. 20 with a one-way coupling to the axle 26 of the rear wheels 27, the other end of the cable being anchored through a return spring 21 to a point 22 on the body of the horse. A length of bicycle chain 23 is included in the cable 20 and passes over a sprocket 24 which incorporates the one-way coupling. The saddle 15 is mounted on an arm 13 of the member 11 which is pivoted at 12 between two flat panels 6 which comprise the body 1. Another arm 14 of the member 11 is connected by a flexible strip 16 to a tail 17. A brake lever 52 is actuated when the rider leans backwards. The lever is coupled by a cable 54 to an arm 55 rockable on a bracket 56 attached to a leg 4 of the horse. The arm 55 co-operates with a slidable disc 59 on the rear axle 26 to move it into frictional contact with a braking disc 60 secured to the axle. The head 2 is hinged to the body 1 by a rotatable rod 36 connected to a track rod 43 between steering knuckles 46 carrying the front wheels 47 (Fig. 6).
Patent GB-146951-A (GB)
Title: Improvements in and relating to closures, stoppers or the like for containers, cans or casks
IPC: B65D45/28
Filed: 1920-06-28
Abstract: 146,951. Schmid, J. J. July 10, 1919, [Convention date]. Heads or closures for casks, cans and other containers. The closure carries cross arms which when in position engage under the flanged top of the container and are tightened by a central screw. The closure 1 is fitted centrally with a nut 2 through which works a screw 3 with a head 4 and carrying arms 6 the ends 7 of which are adapted to engage under the flange a of the container. The screw is first screwed through the nut to allow the arms to be inserted in the container and is then screwed back to seat the closure on the flange.
Patent GB-1063185-A (GB)
Title: Improvements in the administration of veterinary medicines
Inventor: EVERS HANS CHRISTER ARVID
IPC: A61K9/00
Filed: 1965-04-27
Abstract: A method of administering veterinary medicines comprises administering a substantially water-free ointment comprising at least one medicament, at least one polyalkylene glycol or an ester or ether thereof, and at least one water-swellable substance to a mucous membrane of the oral cavity of an animal, e.g. the tongue. The polyalkylene glycol may be a polyethylene glycol having a M.W. between 200 and 20,000.  The water-swellable substance may be a cellulose derivative, e.g. methyl-, ethyl- or carboxymethylcellulose, or pectin, agar, gelatin, gum tragacanth, or salts or esters of alginic acid.  The ointment base may contain viscosity regulators e.g. glycerin, propylene glycol, wetting agents, and preservatives e.g. methyl p-oxybenzoate, phenyl mercury nitrate, or chlorocresol.  The medicament may be an antibiotic (e.g. bacitracin or neomycin sulphate), a vitamin (e.g. vitamin E), an iron preparation (e.g. ferrous fumarate), dibromoxyquinoline, succinylsulphathiazole, piperazine adipate, lignocaine, or hexylresorcinol.
Patent GB-1355703-A (GB)
Title: Furofuran diols
IPC: C07D493/04
Filed: 1971-05-28
Abstract: 1355703 Furofuran diols EASTMAN KODAK CO 28 May 1971 [10 June 1970] 17742/71 Heading C2C The invention comprises compounds (I) where R<SP>1</SP> and R<SP>2</SP> are C 1-4  alkyl groups and their preparation by contacting a compound (II) with an alkali metal alkoxide preferably in alcoholic solution.
Patent GB-1357773-A (GB)
Title: Methods of manufacturing displays screens for cathode-ray  tubes
IPC: G03F7/04
Filed: 1971-05-28
Abstract: 1357773 Cathode-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 May 1971 [29 May 1970] 17776/71 Heading H1D A method of manufacturing a display screen on a face-plate panel of a cathode-ray tube comprises coating the panel with a photosensitive layer including polyvinyl alcohol and a sensitizer, locally hardening the layer in accordance with a pattern by exposure to light through a mask; developing the exposed pattern with an aqueous liquid, fixing the pattern by treatment with acetone or a mixture of acetone and water containing less than 20% water, then covering the panel with a non-reflecting layer, removing the hardened polyvinyl alcohol by etching and coating the resulting uncovered portions of the panel with a luminescent material.
Patent GB-1498078-A (GB)
Title: Screw extruder housing
IPC: B29C48/03
Filed: 1975-04-29
Abstract: 1498078 Screw extruder barrel WERNER & PFLEIDERER KG 29 April 1975 [1 June 1974] 17843/75 Heading B5A In a screw extruder comprising a housing 1 having one or more axially parallel bores for a screw shaft or shafts, the wall of the or each bore is provided over its periphery with recesses bounded by lands 9, and wear inserts 10 are located in the recesses so as to cover the lands and form a wear-resistent lining over the entire periphery. The recesses may have an undercut profile. An insert 12 for the saddles 6, 7 between adjacent bores may be provided. The inserts may be constructed to bridge adjacent recesses (Fig. 3, not shown). The recesses are formed parallel to the axis of the bores and the inserts consist of pre-shaped parts of hard metal or ceramics. Alternatively, additional recesses extending tangentially or helically may be present, in which case the inserts are formed of materials such as various ceramic compositions which are filled into the recesses and then hardened.
Patent GB-407581-A (GB)
Title: Improvements in and relating to electric torches and flash lamps
IPC: F21L4/00
Filed: 1933-06-23
Abstract: 407,581. Electric battery lamps. WARD & GOLDSTONE, Ltd., and GOLDSTONE, S., 107, Frederick Road, Pendleton, Manchester. June 23, 1933, No. 17883. [Class 39 (ii).] An electric battery lamp is provided with a casing of insulating material, preferably moulded insulating material, formed in two separable parts 5, 9 which, when placed together are held against lateral movement by complementary engaging or overlapping flanges on their edges 10, the parts being held together by the reaction of springs 11 which are secured to one part and compressed by the operation of closing the two parts together. As shown, the springs 11 are bowed or S-shaped so that the intermediate portions are compressed by the ends of cylindrical cells 7 disposed one at each side of the casing, the free ends of the springs thus being pressed outwardly against the sides of the cover part 9. In a modification, for use with a single battery which does not compress the springs, the latter are so shaped that their free ends normally exert an outward pressure on the part of the casing which is pressed over them. Ribs or depressions may be provided to form an additional holding for the springs. A lever switch 8 is provided and, in the example shown, the socket for the bulb 6 is mounted between a pair of cells 7.
Patent GB-1047521-A (GB)
Title: Improvements in and relating to fluidised bed reactors
Inventor: CRAIG THOMAS GARDNER
IPC: B01J8/44
Filed: 1962-05-09
Abstract: A fluidized bed reactor, for example for chlorinating titaniferous material, comprises a base support for the particle bed consisting of a horizontal metal base-plate 15 perforated for the admission of fluidizing gas through tubes 29 and surmounted by a plurality of blocks 21 of refractory material extending over the entire <PICT:1047521/C1/1> upper surface of the base-plate and provided with a bore or bores which form the sole communicating means between the perforations in the base-plate and the fluidized bed region, the upper portions of which bores extend horizontally or downwardly into the fluidized bed region to provide a "non-return" system therewith, and at least some of the blocks being higher than the remaining blocks and/or being of smaller cross-sectional area at their tops than at their bases, to enable the opening of the bores into the fluidized region.
Patent GB-240953-A (GB)
Title: Improvements in or relating to induction couplers or high frequency transformers
IPC: H01F27/02
Filed: 1924-07-28
Abstract: 240,953. Igranic Electric Co., Ltd., and Curtis, A. H. July 28, 1924. Inductances comprise two laterally unsupported inductance coils wound in close inductance relationship either concentrically one within the other or coaxially side by side, and a plug-in terminal connection device for supporting the coils. Two coils 1, 2 of the honeycomb type described in Specification 141,344 form the windings which may be either self-sup.. porting or mounted on a light former 3 of the perforated and/or crinkled. type described in Specification 238,318. The coils are lashed to an insulating body 5 carrying terminals 6 - - 9 for plugging into sockets, the terminals being of the standard pattern for triode thermionic valves. The diagonal 6, 8 is disposed at about 55‹ with the common axis of the coils so that when two transformers are mounted on a panel with the diagonals 6, 8 vertical, there will be a minimum of interference between them. In another form, the coils may be placed side by side, and in a further form the coils mav be wound so that their turns interleave one another so the cross-sections of the coils are bounded by substantially the same limits.