baber/WOPTO huggingface dataset:
Patent GB-1107576-A (GB)
Title: Field-effect transistor
IPC: H01L29/808
Filed: 1965-07-14
Abstract: 1,107,576. Transistors. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 14 July, 1965 [15 July, 1964], No. 29834/65. Heading H1K. A field effect transistor comprises a semiconductor body of one conductivity type with a grid of the opposite type adjacent one main face defining channels perpendicular to the face where they are interconnected by a layer of the one type. Several pairs each consisting of such a transistor and another field effect device may be made in a single wafer (Fig. 2) by diffusing through patterned oxide masking to form pairs of zones 2 one only of which includes undiffused channels 3. Zones 4 forming PN junctions with zones 2 are formed in a subsequent diffusion. One of these zones bridges the underlying zone 2 to provide a gate for a transistor with a channel parallel to the surface while the other interconnects the channels 3. Ohmc isource, drain and gate contacts are finally attached. To reduce source-drain resistance the wafer may be heavily doped by diffusion into the back face as far as the channels.
Patent GB-903381-A (GB)
Title: Improvements relating to packaging containers
Inventor: KNIGHTLY DAVID
IPC: B65D85/68
Filed: 1957-09-23
Abstract: 903,381. Packaging containers; packages. WILMOT PACKAGING Ltd. Dec. 23, 1958 [Sept. 23, 1957], No. 29839/57. Classes 66 and 94(1). A drum 3 has packagesupporting rings 1 fitted within it, each located by annular grooves 4, 4<SP>1</SP> in the drum wall. The rings 1 support a slide 5 by means of a block 7 welded to each ring and carrying a plate 6. An inner slide 8 on ball bearings 9 moves within the channel formed by the slide 5, and a further slide 10 on ball bearings 11 moves in the channel of slide 8 and carries a bracket 12. To assemble the parts the rings 1 are connected to the slide 5, the groove 4<SP>1</SP> is swaged in the drum 3, the ring and slide assembly is inserted in the drumagainst the groove 4<SP>1</SP>, and the remaining grooves are then swaged. Tack welds 14 prevent the rings 1 from rotating. A lid is fitted to the mouth 13 of the drum, a skirt on the lid contacting a sealing gland placed in a trough 15 formed in the drum rim. In a modification, the rings 1 are broken at one point and spring into position within grooves already swaged in the drum wall. The rings are preferably of metal, but may be of wood or cork; the drum may be of aluminium.
Patent GB-332136-A (GB)
Title: Improved manufacture of fabrics from mechanically spun cocoyarns
IPC: D03D15/00
Filed: 1929-10-02
Abstract: 332,136. Jagt, B. G. H. van der. Oct. 6, 1928, [Convention date]. Fabrics woven from cocoa fibre yarns, which are subsequently flattened.-Cocoa fibre yarns from which extending fibres have been removed are woven as warps with somewhat thicker cocoa fibre yarns serving as wefts into an open fabric, which after treatment by wetting or evaporation, is pressed between rollers &c., so that the yarns acquire a band form section. The fabrics are used for making bags for packing or transporting granular material. Specification 246,837, [Class 59, Grinding, crushing, &c.], is referred to.
Patent GB-719931-A (GB)
Title: A new or improved instrument for use in making rugs and the like
IPC: D04G3/00
Filed: 1949-11-23
Abstract: 719,931. Sewing. WILSON, C. B. Feb. 20,1951 [Nov. 23, 1949], No. 29986/49. Class 112 A needle for forming tufts on a fabric is provided with a cutting device which is actuated to cut the material forming the tuft at each stroke of the needle into the fabric. The needle comprises a pointed hollow needle-member 1 having a handle 5 housing a spring 6 engaging a collar 7 slidable on the member. The collar carries an arm 8 having material holding teeth projecting into the member, and an arm 11 having a. presser 12 connected with the arm 8. Cutter blades 3 in sliding contact are contained in a housing 2 on the handle. As the needle-member passes downwardly through the presser into the fabric, abutments on the blades engage surfaces 21 on a spring 20 attached to the collar to cause the blades to close and cut the wool. On further downward movement of the needle the spring 20 rides over the blades which are opened by surfaces 19 on the arm 8 engaging further abutments on the blades. During withdrawal of the member from the fabric the member passes upwardly through the presser, and the blades remain open, the spring 20 riding over the edges of the blades. The first penetration of the member into the fabric passes half a tuft through the fabric and cuts the wool ready for the next tuft. On withdrawal of the member from the fabric, the material is held in the fabric by the teeth on the arm 8. Specification 646,675 is referred to.
Patent GB-495232-A (GB)
Title: Die casting machines
IPC: B22D17/26
Filed: 1937-11-03
Abstract: 495,232. Casting-machines. MADISONKIPP CORPORATION. Nov. 3, 1937, No. 30061. Convention date, Dec. 7, 1936. [Class 83 (i)] Clamping moulds ; castings, extracting.-A diecasting-machine having a fluid-operated piston 71 for opening and closing the die 17, 18 is provided with a valve in the fluid exhaust passage 93 which regulates the flow except at the start and end of movements of the die part 18 when the flow is unrestricted. The part 18 has ejectors 68 which are actuated by adjustable screws 69<1> thereof engaging the frame 21 and are withdrawn by pins 67 thereof engaging the fixed die part 17. It is connected to its slide 19 by a lost motion device 60 and a spring 62 which ensures the closure of the die during engagement and disengagement of the metal supply nozzle 48, Fig. 2, and permits the use of dies of different thickness. The slide 19 is operated by the piston 71 through a lever 34, link 32, and toggle 26 and has rack teeth 23 engaging a pinion 22 to which is secured a crank-pin 118 engaging a U-slot 111, Fig. 4, in the head of a lever 106 pivoted to the stem 102 of the valve 99 which is pressed towards its seat by an adjustable spring 103. Towards each end of the movement of the slide 19 the pin 118 engages one of the adjustable pins 110 and opens the valve 99 fully. The metal supply nozzle is moved into and out of contact with the closed die by means of a crank-shaft 52, Figs. 1 and 2, connected by links 51, 55 to the pressurecasting-device 43 and to the lever 34 respectively. The supply of fluid to the oscillating cylinder 70 is controlled by a hand-operated semi-rotary valve 77. The pinion 22 can be rotated by a hand wheel 24 connected thereto and the lever 34 by pedals 341, 41.
Patent GB-193113-A (GB)
Title: Paper making machine
IPC: D21F7/00
Filed: 1921-11-11
Abstract: 193,113. Marks, E. C. R., (Beloit Iron Works). Nov. 11, 1921. Fourdrinier paper machines.-In arrangements for changing the wire cloth of a Fourdrinier paper machine, wherein the table, including the breast roll, table rolls, and the end roll 160, Fig. 15, is moved sideways on channel tracks or beams mounted on posts 2, 3, 4, Fig. 2, the pond 60 is detached from the stuff box 61 and, with the front deckle wheel 8, is raised by a crane, a vertical slot in the front plate of the pond being provided for this purpose. Means are provided for securing the pond in raised position relatively to the head box, and means for adjusting laterally the front plate of the pond. The upper couch roll 16 is swung back into the position shown in Fig. 15, and the lower couch roll 15 is lifted by a crane, one bearing block of the lower couch roll being provided with dowel pins fitting in corresponding apertures in its support, the support being pivotally mounted so that it can be swung to one side of its normal position. The wire tightener roll 136, Fig. 8, and its adjusting mechanism, mounted in a frame 148 normally bolted to the pedestal 5, is lifted out of the way of the wire cloth by winding up a flexible connector 152 on the shaft of a hand wheel 156. Pipes 175-180, and 188, 189, Fig. 2, temporarily placed in slots supplied, hold the new wire in position, the portion of the new wire between the pipe 188 and the couch roll 15, being supported by cranes at 192-195. The tracks are raised slightly above the posts or pedestals 2, 3, 4, &c. by cams operated by levers 53. The table is provided with rollers running in the tracks and carrying toothed wheels driven by pinions on a motor-driven shaft 33.
Patent GB-458500-A (GB)
Title: Improvements relating to dust or refuse receptacles
IPC: B65F7/00
Filed: 1935-10-17
Abstract: 458,500. Deodorizing. JAMES, R., 46, Gledstanes Road, West Kensington, and CLARKE, G., 18, Rowfant Road, Balham, both in London. Oct. 17, 1935, No. 30147/34. [Class 81 (i)] [See also Group I] A deodorizer &c. for use in refuse receptacles comprises a closed container a adapted, as by the provision of apertures a<1>, for the circulation of air therethrough, and holding a solid deodorant &c. e, and a bolt c passing through the container and having securing-means for mounting the container upon the lid or wall of the receptacle. The container may be constituted by a shallow cylinder with a frictionally engaged lid b or by a correspondingly-shaped enclosure of wire-netting and the deodorant &c. may be in the form of an annular block, the bolt, which may have an end shaped to penetrate the lid and is secured by a nut or cotter, passing through the central aperture of the annulus.
Patent GB-702752-A (GB)
Title: Improvements relating to combustion equipment of gas turbine engines
Inventor: JOHNSON FRANCIS MURRAY
IPC: F23R3/20
Filed: 1950-12-08
Abstract: 702,752. Jet propulsion plant. ROLLS ROYCE, Ltd. March 6, 1952 [Dec. 8, 1950], No. 30154/50. Class 110 (3). [Also in Group XII] Combustion equipment for re-heating exhaust gases of a gas turbine; jet propulsion engine comprises a duct for conveying the exhaust gases, which duct has an upstream portion 14 and a downstream portion 15, 16, 17 comprising a substantially cylindrical length 16 of greater cross-sectional area than the maximum cross-sectional area of the upstream portion. First fuel injection means 19 arranged in. the duct adjacent the upstream end; of the upstream portion are associated with first combustion stabilizing means 20, and second fuel injection means 29 inject fuel into the duct to bum in the downstream portion and have associated therewith second combustion stabilizing means 24, 25. The second stabilizing means comprises two concentric U-shaped means of different diameters, and the second fuel injection means may be combined therewith, an annular fuel chamber being combined with one of the U-shaped rings and the fuel discharging upstream therefrom. The jet pipe may be fitted with an adjustable area jet nozzle 18 which may be a jet nozzle as described and claimed in Specification 598,183.
Patent GB-264776-A (GB)
Title: Running gear for use on high speed suspension railways
IPC: B61B3/02
Filed: 1925-10-21
Abstract: 264,776. Kruckenberg, F. Oct. 21, 1925. Suspended vehicles. - In a vehicle for use on high-speed suspension railways, each running- wheel a is mounted at the free end of an individual forked arm h which is hinged at its other end about an horizontal axis y to the supporting arm l of the vehicle body. In conjunction with each running-wheel a counterwheel b<1> carried by a similar hinged arm h' is adapted to bear against the under side of the rail r, the two arms h, h<1> being connnected by a tension spring a<1>, which is independent of the main springs s and maintains the pressure between the rail and the counterwheel.
Patent GB-1321108-A (GB)
Title: Photopolymerisable elements
IPC: G03F7/027
Filed: 1970-06-22
Abstract: 1321108 Photo-polymerizable materials ASAHI KASEI KOGYO KK 22 June 1970 [25 June 1969 19 Feb 1970] 30199/70 Heading G2C A photo-polymerizable material comprises (i) a substantially transparent support 0À05-3 mm thick, (ii) an anchor layer 0À0001-0À3 mm thick but thinner than the support and containing a non- photo-polymerizable polymeric binder and an organic photo-initiator in a ratio by weight of 1 to 0À001-0À1 and (iii) a layer of photopolymerizable material 0À1-10 mm thick. A printing plate may be produced by uniformly exposing through the support for a time between 0À1T and T where T is the time beyond which polymerization of layer (iii) occurs, imagewise exposing layer (iii) directly to polymerize the exposed areas and removing the unexposed areas. The polymer of the anchor layer may be a polyester, an epoxy, acrylic, urea- or melamineformaldehyde resin, a vinyl polymer or a rubber or be an unsaturated polyester or epoxy resin mixed with a thermal curing agent in which case the layer may be thermally cured after applying the layer (iii) but before exposure. The photopolymerizable materials may be ethylenically unsaturated monomers, unsaturated polyesters and unsaturated polyurethanes, the preferred materials being acrylic monomers mixed with unsaturated polyesters, with polyamides or with unsaturated polyurethanes.
Patent GB-159340-A (GB)
Title: Improvements in or relating to tin-man's rollers for bending sheet metals for hollow ware and the like
IPC: B21D5/14
Filed: 1919-12-04
Abstract: 159,340. Morgan, A. J. Dec. 4, 1919. Bending.-Tinmen's rollers for bending sheet metal for hollow-ware &c. have the working faces of the rollers in the form of sleeves. The sleeves d are driven on to reduced concentric extensions b<1> of the main rollers a, b, or c and secured against rotation by keys d<1>. One or more of the roller sleeves may be grooved as at d<2> for taking beaded edges of metal sheets. In every case, the external diameter of the sleeve is advantageously the same as that of the main roller.
Patent GB-1118795-A (GB)
Title: Production of detergent compositions
IPC: C01B25/41
Filed: 1965-07-16
Abstract: A process for the manufacture of a detergent composition containing sodium tripolyphosphate hexahydrate comprises the steps of forming a fluid aqueous slurry having a solid dispersed phase comprising sodium trimetaphosphate, incorporating into said slurry crystals of sodium tripolyphosphate hexahydrate, interspersing a gas in said slurry to form a foam, simultaneously maintaining the foam at below 135 DEG  C. and converting at least 50% by wt. of the sodium trimetaphosphate into sodium tripolyphosphate hexahydrate by reaction with a strong base; and removing sufficient water from the aqueous phase of the foam to produce a solid, porous product containing sodium tripolyphosphate hexahydrate.  In a preferred embodiment, the heat of the reaction of NaOH with sodium trimetaphosphate to form the tripolyphosphate converts part of the water, in at least a portion of the blend, to steam, thereby forming a foam; this obviates the necessity for a spray-drying step.  The slurry may also contain an aromatic sulphonate of the Formula (I) <FORM:1118795/C4-C5/1> wherein R is H or C1-C6 alkyl, R1 is H or C1-C2 alkyl and M is an alkali metal or ammonium cation.ALSO:A process for the manufacture of a solid porous product comprising sodium tripolyphosphate hexahydrate comprises the steps of (a) forming an aqueous slurry comprising solid sodium trimetaphosphate, adding sodium tripolyphosphate hexahydrate crystals, interspersing a gas in said slurry to form a foam, and (b) simultaneously maintaining said foam at below 135 DEG  C. and converting at least 50% by wt. of the sodium trimetaphosphate into sodium tripolyphosphate hexahydrate with a strong base; and removing water from the aqueous phase to produce a solid porous product containing sodium tripolyphosphate hexahydrate. In a preferred embodiment the heat of conversion of sodium trimetaphosphate to sodium tripolyphosphate, by reaction with NaOH, converts part of the water in at least a portion of the blend to steam thereby forming the foam; this obviates the necessity for a spray-drying step.
Patent GB-978457-A (GB)
Title: Improvements relating to valves for controlling fluid flow
IPC: F16K39/02
Filed: 1963-07-31
Abstract: 978,457. Valves. H. W. ANGELERY. July 31, 1963 [Aug. 15, 1962], No. 30379/63. Heading F2V. A dynamically balanced valve has an inlet passage 11 and an outlet passage 12 and a valve closure member 28 which is arranged to move towards and away from a valve seat 19, the closure member being formed with a tubular extension 38 which extends through the seat into the outlet passage and is formed with a radially outwardly extending inclined vane the outer periphery of which is spaced from the valve seat to allow fluid to flow between the vane and the seat, the extension also being provided with ports such as 46 on opposite sides of the vane with the port on the downstream side subjected to the aspirating action of fluid flowing along the extension on the downstream side of the vane. The valve has a diaphragm-actuated plunger 10 which first opens a ball valve 34 to equalize the pressure in a valve guide 21 with that in the outlet passage 15 and then engages the extension 38 to open the closure member 28 itself. In the preferred embodiment, four vanes are formed on the extension and each vane may have a reversely inclined end portion 52 to prevent rotation of the closure member by the fluid flow. The inclination of the vanes and the ratio of the port diameters on opposite sides of the vane may be altered. U.S.A. Specification 2,805,039 is referred to.
Patent GB-686631-A (GB)
Title: Chemotherapeutically useful compositions comprising sulpha compounds and the like
IPC: A61K31/16
Filed: 1950-12-12
Abstract: A neutral aqueous solution having a high content of dissolved sulpha drug is made by reacting in aqueous medium, two mols. of alkali bisulphite with one mol. of cinnamaldehyde, acrolein or crotonaldehyde, reacting this product in the mol. ratio of 2 : 1 with a heterocyclic substituted sulphonamide, and then condensing the resulting product with an equimolecular proportion of a salt of a sulphonamide having an acidic reaction and a chemotherapeutically active aromatic sulphonamide or sulphone having a basic reaction. Suitable heterocyclic substituted sulphonamides are sulphapyrimidine, sulphapyridine, sulphathiazole, sulphathiadiazole and sulphamethylpyrimidine. In examples: (1) cinnamaldehyde is reacted with sodium bisulphite and to the solution are then added 2-(p-aminobenzene-sulphonamido)-4-methylpyrimidine and the salt of 4-aminobenzene-sulphothiourea and 4-aminomethylbenzene-sulphonamide; (2) cinnamaldehyde and sodium bisulphite are condensed and then reacted first with 2-sulphanilamidopyridine and then with the salt of N1-acetylsulphanilamide and 4 - aminomethylphenyl - methyl-sulphone.
Patent GB-321052-A (GB)
Title: Improvements in or relating to devices for the generation of audio-frequency electric currents
IPC: H04M19/02
Filed: 1928-10-23
Abstract: 321,052. Coventry Automatic Telephones, Ltd., and Westell, E. P. L. Oct. 23, 1928. Automatic exchange apparatus.- Tone currents in telephone systems are produced by the combination of currents of simple wave form with or without periodic modulation or other modification so that the resultant current when audibly reproduced imitates a given sound. As described, the tone currents imitate the ringing of the called party and are applied as a ring-back signal to the calling party. Distortion due to the telephone instrument may be compen. sated by counter distortion in the production of the tone current. Two oscillating valves 1, 2 have tuned pla.te circuits 4, 5 and 8, 9 coupled to grid coils 6, 10, and the plate coils 5, 9 are respectively coupled to coils 12, 13 connected in series in the grid circuit of an amplifying valve 3 the output of which is fed by a transformer 25 to the telephone line. To imitate the action of the hammer on the gongs of the bell, contact 18 of a relay 15, operated by alternating current of the same frequency of the bell to be imitated, intermittently shunts the coils 12, 13 by a resistance 17, contact 24 of relay 16 being assumed to be closed. The ringing and silent periods are imitated by relay 16 which is periodically released to open the plate circuit of valve 3, the gradual dying away of the sound being effected by the charged condenser 22 in the plate circuit. The rate of discharge of the condenser may be controlled by a variable resistance 23. Contact 24 of relay 16 is provided to prevent interruption at 18 of the dying away period. The periodic modulation or interruption of the tone currents may be effected by a rotating drum or any other mechanical or electrical device.
Patent GB-1273879-A (GB)
Title: Hydrostatic shaft seals
IPC: F16J15/34
Filed: 1970-06-24
Abstract: 1,273,879. End-face seals. SULZER BROS. Ltd. 24 June, 1970 [25 June, 1969], No. 30679/70. Heading F2B. The non-rotating seal ring 5 for a pump shaft is separated from its rotary counter ring 8 while the system pressure is below a critical value by means of a device 9 which is movable in one axial direction by a force arising from the system pressure and in the opposite direction by, for example, springs 10. As shown, the device consists of an annular piston 9 having an area 17 open to atmospheric pressure. Under starting or low pressure conditions, the force of the springs 10 is greater than the opposing force on the piston by fluid pressure and the piston moves axially to lift the seal ring 5 clear of the ring 8 by means of interengaging flanges 15, 16. In a second embodiment, a number of small pistons are employed instead of a single one, these being distributed circumferentially around the seal.
Patent GB-1331687-A (GB)
Title: Wad structures for cartridges methods of forming such struc tures and cartridges including such structures
IPC: F42B7/08
Filed: 1971-06-30
Abstract: 1331687 Injection moulding cartridge cases OLIN CORP 30 June 1971 [4 Dec 1970] 30718/71 Heading B5A [Also in Division F3]  A method of manufacturing a wad for a shotgun cartridge comprises injecting a mixture of molten plastics material and a foaming agent through a sprue 86 into the mould cavity 84, cooling the cavity to cool a portion of the plastics material whilst retaining the remainder in a molten state, moving the plug 92 and plunger 96 to the right to permit foaming to occur, and solidifying the foamed portion to provide an integral foam cushion. The cushion is arranged to have a density 20-60% of that of the solid parts of the wad and is in the range 10-35 lb./ft<SP>3</SP>. The wad is removed from the plug 92 by relative movement of the plunger 96. The plastics material comprises ethylene-vinyl acetate co-polymer, a co-opolymer of ethyl acetate, polyethylene, polypropylene, polyvinyl chloride, a copolymer of vinyl acetate, a copolymer of polyethylene and butyl rubber, and mixtures thereof. The foaming agent comprises azondicarbonamide, P,P<SP>1</SP>-oxybis (benzene sulphonyl hydrazide), azobis (isobutyronitrile), and N,N<SP>1</SP>- dinitroso-penta-methylenetetramine, and mixtures thereof. In an example a molten mixture of 99% polyethylene-vinylacetate copolymer and 1% azodicarbonamide is fed into the mould cavity at 5000 p.s.i. and, after cooling, the pressure is reduced to 500 p.s.i. to allow foaming to occur.
Patent GB-365525-A (GB)
Title: An improved heat-insulating composition
IPC: C04B28/02
Filed: 1930-10-15
Abstract: Heat insulating and resisting compositions for application as plasters or for moulding comprise a cement, a clay, e.g. "ground fireclay," or clay equivalent such as ganister, and a porous filler, e.g. slag dust, pumice powder, or kieselguhr.  Slabs with netting reinforcement alternating with layers of cork, asbestos, millboard or slagwool may be built up to form a wall or wall covering.  Moulded sections may be used for covering steam pipes.  Reference has been directed by the Comptroller to Specifications 5064/84, [Class 22, Cements &c.], 27902/08, [Class 70, Indiarubber &c.], and 136,742, [Class 22, Cements &c.].
Patent GB-520634-A (GB)
Title: Rouleau turner
IPC: D05B35/02
Filed: 1938-10-26
Abstract: 520,634. Sewing-machine attachments. TEMPELHOFF, M. (known as TEMPLE, M.) Oct. 26, 1938, No. 30895. [Class 112] In a rouleau turner, the fabric strip is folded about a block b to which the return tube c is secured, and the upper edge of the strip is guided by an inclined way between the block b and a pressure plate e on to the lower edge. Thereafter, the edges are pressed together between the plate e and the machine feed-dog, both before and after the stitching point.