baber/WOPTO huggingface dataset:
Patent GB-1237414-A (GB)
Title: A semiconductor device and a method of manufacturing the same
Inventor: OTSUKA MICHIO
IPC: H01L29/00
Filed: 1968-11-15
Abstract: 1,237,414. Semi-conductor devices. TOKYO SHIBAURA ELECTRIC CO. Ltd. 15 Nov., 1968 [11 April, 1968], No. 54316/68. Heading H1K. In a semi-conductor device comprising a PN junction between high and low resistivity layers a continuous groove is formed extending from a major surface of the semi-conductor body through the junction and terminating in the high resistivity layer. The groove is inclined to an axis normal to said major surface so that the part of the high resistivity layer enclosed by it decreases in cross-section towards the bottom of the groove. The silicon controlled rectifier shown in Fig. 1 is made by diffusing gallium into a high resistivity N type wafer 3 to form a P type layer into which a gold-antimony member 6 is alloyed to form N type cathode zone 5. After ultrasonically bonding gate wire 7 to the P type layer adjacent the cathode and aluminium soldering tungsten anode 8 to the P layer on the other face the wafer periphery is rendered conical by blasting with an air jet containing entrained alumina particles while rotating the body. Then groove 9 is similarly cut using a suitably angled jet. If desired the wafer face on which the cathode is formed is depressed at its centre. Another embodiment consists of a bilateral 5 zone switch with its outermost zones short circuited to the neighbouring inner zones by the anode and cathode contacts (Fig. 5, not shown). The function of the groove is to increase the breakdown voltage of the junction.
Patent GB-1417008-A (GB)
Title: Process and apparatus for the manufacture of tyres particularly of off-the-road- tyres
IPC: B29D30/06
Filed: 1972-11-28
Abstract: 1417008 Moulding tyres POMINI FARREL SpA 28 Nov 1972 [11 Feb 1972] 54973/72 Heading B5A A moulding and curing apparatus for tyres of large dimensions includes tyre side wall mould plates 38, 41, tread mould segments 35 urged radially by their engagement with an annular element 23, and a bladder 63 supported between a cylindrical element 45 fixed to the plate 38 and a vertically movable head 51. The head is moved by the rod 68 of a piston 67 in a cylinder 66 whereby a green tyre carcass may be supplied to the mould in surrounding relationship with the bladder, Fig. 2, by a loader 88 engaging the upper rim of the carcass. The plate 38 is raised to this loading position by the rods 77 of hydraulic motors 65 and fluid is fed to the bladder through a line 97 and passages in the element 45; the head 51 is lowered and locked to the element by latches 59. The rod 58 is then disengaged from the head 51 by removal of a fork member 74, and the mould plate 41 attached to a cover plate 30 is brought into position above the segments whereupon the rod is raised and locked to the cover by the insertion of the fork member, Fig. 5. The cover and mould assembly are lowered to the position of Fig. 6, in which the tread segments are urged radially inwardly; the rod 68 is disengaged from the cover 30 and lowered, and the cover is locked by a ring 27 to the element 23. A dome casing 82 is lowered by a crane to engage a casing 81 and is locked thereto by a ring 83. A curing fluid, e.g. high pressure steam is fed to the easing space 105 and to the bladder through tangentially arranged holes 49; from the space 105 the fluid passes through holes 108, 106 to the mould parts. In a modification the mould is in two main parts without radially movable tread segments.
Patent GB-1363265-A (GB)
Title: Laminate filament and fabrik prepared therefrom
IPC: D06Q1/04
Filed: 1971-11-26
Abstract: 1363265 Knitted fabrics; nets DOW BADISCHE CO 26 Nov 1971 [27 Nov 1970 3 May 1971 25 Aug 1971] 54979/71 Heading D1K [Also in Division B5] A knitted fabric or net is made from a continuous laminate filament which comprises (A) a polymeric ply of material which is substantially electrically non-conducting, bonded to (B) a ply made of electrically conductive material having at least one discontinuity along its length. Preferably the polymer is polyethylene terephthalate and the conductor is aluminium. The discontinuity is preferably at least 0.003 inches long. This laminate filament may be used on its own or with other filaments in the fabric. The fabric is antistatic but does not conduct electricity.
Patent GB-1107239-A (GB)
Title: Improvements in or relating to the purification of acetonitrile
Filed: 1966-12-16
Abstract: Crude acetonitrile containing an unsaturated nitrile as impurity is purified by treating the crude acetonitrile with a diene in a molar ratio of diene to unsaturated nitrile between 1 and 20 at temperature in the range from ambient to 250 DEG  C. to effect a Diels-Alder reaction between the diene and the unsaturated nitrile, removing any excess diene and distilling the resulting product to recover pure acetonitrile.  The process may be effected under autogenous pressure either batchwise or continuously, the diene compound employed may be butadiene or cyclopentadiene and the unsaturated nitrile impurity may be acrylonitrile.
Patent GB-1423380-A (GB)
Title: Puncture sealing tyre
IPC: B29C73/20
Filed: 1973-12-06
Abstract: 1423380 Pneumatic tyres B F GOODRICH CO 6 Dec 1973 [18 June 1973] 56548/73 Heading B7C [Also in Division C3] A method of making a tyre having a puncturesealing layer, comprises forming the tyre with a layer comprising rubber and a nitrogengenerating gasifying agent, vulcanizing the tyre under pressure at a temperature at which the gasifying agent decomposes to produce the nitrogen, and releasing the pressure to cause expansion of the layer to form a puncturesealing layer having closed cells filled with nitrogen. The method may be applied to the production of cross-ply or radial-ply tyres. As shown, a tyre produced by the method of the invention, comprises: carcass plies 10, 11 of radially arranged rayon or polyester cords; a breaker including folded strips 15, 17 of cord material, and a ply 16 of steel cords; an impervious liner 25; and a puncture-sealing cellular rubber layer 30. The cords of the folded strips 15, 17 may comprise rayon or polyester, and may be inclined at angles of between 15 and 25 degrees to the mid-circumferential plane. The cords of the breaker ply 16 are preferably inclined at angles of between 20 and 30 degrees to the mid-circumferential plane. As shown, the cellular rubber layer 30 is coated with a layer 31 of polyethylene capable of flowing into a puncture under operating conditions. The Specification gives examples of the compositions of the cellular rubber layer and of the liner.
Patent GB-1436358-A (GB)
Title: Method for producing a chocolate mass
IPC: A23G1/04
Filed: 1973-12-08
Abstract: 1436358 Chocolate NABISCO INC 8 Dec 1973 56995/73 Heading A2B A continuous process for making a chocolate mass comprises the following steps: comminuting dehulled fermented unwasted cocoa beans to a particle size of about 2mm, and preferably homogenising the granular product to form a liquid; degassing the granular or liquid beans a first time under reduced pressure (maximum 375 torr) at not more than 95‹C prior to roasting; roasting whilst maintaining a temperature variation of not more than +1.5‹C at, at the most, atmospheric pressure; and degassing a second time during and/or after roasting. The product is kneaded together with other chocolate ingredients e.g. cocoa butter, lecithin and spices, for 20 minutes, and homogenised. Conching may be dispensed with. Degassing may be carried out under a counter-current flow of air and/or water vapour or inert gas. The first degassing and/or roasting may be carried out in a thin layer or a whirling or eddy layer. Roasting is at 110 to 140‹C depending on the type of cocoa, and is carried out for 0.5 to 12 minutes. After roasting the cocoa is cooled in a thin layer to below 80‹C within 0.5 to 1 minute. The homogenising step may be carried out under a co-current flow of nitrogen.
Patent GB-1370095-A (GB)
Title: Transom membeer in bridges
IPC: E01D6/00
Filed: 1971-10-19
Abstract: 1370095 Bridge transoms THOS STOREY (ENGS) Ltd 19 Oct 1971 [4 Dec 1970] 57793/ 70 Headings E1G and E1K A transom for a Bailey type of bridge has upper and lower flanges, the upper flange having over a major part of its length a plurality of equally spaced, upstanding threaded sockets 24 alternating with projections 25. The sockets comprise nuts welded to plates 22 having holes aligned with the nut. The sockets and projections serve to locate and attach stringers, e.g. as disclosed in Specification 1370094. The transoms may be secured to side panels either by bolting through holes 6 in the lower flange 4 or by means of a saddle 38 pivoted to the end of the transom about a horizontal axis 40, the saddle being bolted to the panel through holes 6. Location dowels 8 between adjacent holes 6 receive dowels in the side panels, e.g. as disclosed in Specification 1349749. Sway braces between adjacent transoms may be connected to plates 10, 12. A brace may be connected between the side panels and an upstanding plate on top of the transom.
Patent GB-1410617-A (GB)
Title: Pyrolysis process
IPC: C07C4/04
Filed: 1972-12-14
Abstract: 1410617 Pyrolysis of hydrocarbons H W COOPER 14 Dec 1972 57833/72 Heading C5E A hydrocarbon feed is pyrolyzed by passage through a pyrolysis zone, at least two different pyrolysis products are separated from one another upon leaving the zone and at least a portion of each of two or more separated streams is recycled to different points in the pyrolysis zone. Examples describe the pyrolysis of nbutane in the presence of steam to give a mixture of propylene, ethylene, butylenes, butadiene, hydrogen, methane and ethane; in Example 2 ethane and propylene are recycled with additional steam, and in Example 3 hydrogen and propylene are recycled.
Patent GB-1409220-A (GB)
Title: Colour grading of various materials
IPC: G01N21/25
Filed: 1973-12-17
Abstract: 1409220 Photo-electric colour grading MAGNUSON ENGS Inc 17 Dec 1973 [27 Dec 1972] 58323/73 Heading G1A An apparatus for monitoring a moving material such as cereal or potato crisps on a conveyer measures the reflectivity of the material a two well spaced light hues and takes the ratio of the measurements. The basic apparatus in Fig. 1 comprises a stand 14 on wheels 21 and having a rack and pinion arrangement 15 allowing the optical measuring apparatus in head 10 to be placed over the material 11d moving on a conveyor belt 11. An air duct 24c delivers air from the stand to the head where it flows past heaters to maintain the head temperature stable. The head is shown in Fig. 2, with the heater visible at 24f. The optical system comprises circular discharge tubes, lens 26, filter 26a, dichroic filtering beam-splitters 27, filters 28, 29 and photo-diodes 32, 35. The filters operate such that detector 32 receives green light and detector 35 receives red light; specific wavelengths are referred to, and the detector pre-amplifiers, rectifiers and ratio taking circuit are described. The ratio is continuously displayed on a meter, and recorded on a chart.
Patent GB-1328289-A (GB)
Title: Spetrally sensitised photograph silver halide emulsions
IPC: G03C1/29
Filed: 1970-12-11
Abstract: 1328289 Spectrally sensitized photographic silver halide emulsions EASTMAN KODAK CO 11 Dec 1970 [12 Dec 1969] 58874/70 Heading G2C A photographic light-sensitive silver halide emulsion is spectrally sensitized with (1) a benzimidazolooxacarbocyanine dye and (2) a benzimidazoloselenacarbocyanine dye. Dye  (1) preferably has the Formula:- and dye (2) preferably has the Formula:- wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each alkyl, substituted alkyl (e.g. aralkyl) or cycloalkyl; R<SP>5</SP> and R<SP>6</SP> are each alkyl having 1-4 carbons; R<SP>7</SP>, R<SP>8</SP>, R<SP>9</SP>, R<SP>10</SP>, R<SP>11</SP>, R<SP>12</SP>, R<SP>13</SP> and R<SP>14</SP> are each H or halogen; R<SP>16</SP> and R<SP>18</SP> are each H, halogen, alkyl, cycloalkyl, alkoxy or aryl; R<SP>15</SP> and R<SP>17</SP> are each H, halogen, cyano, alkyl, cycloalkyl, alkoxy, alkylaminocarbonyl, trifluoroalkyl, trifluoroalkylsulphonyl or an acyl radical of a monobasic fatty acid; L<SP>1</SP>, L<SP>2</SP>, L<SP>3</SP> and L<SP>4</SP> are each a methine group which may be substituted; X<SP>1</SP> and X<SP>2</SP> are each an anion; and n, m, p and k are each 1 or 2; or, when R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> or R<SP>4</SP> is sulphqalkyl or carboxyalkyl and X<SP>1</SP> or X<SP>2</SP> is a hydroxyl ion, the internal anhydride of such dye or dyes.
Patent GB-1417727-A (GB)
Title: Electrolytic batteries
IPC: H01M8/2465
Filed: 1972-12-21
Abstract: 1417727 Electrochemical cells DEUTSCHE AUTOMOBIL GmbH 21 Dec 1972 [23 Dec 1971] 59004/72 Addition to 1347860 Heading H1B Each cell 21 of a battery has a chamber 22 bounded on at least one side by an electrode and provided with an inlet 27 and outlet 28 for the passage of a fluid and with a series of guides 23 to establish separate flow paths 24 between inlet and outlet. The identical cells are assembled into a battery with all the inlets 27 aligned and with all the outlets 28 aligned so that single inlet and outlet channels 31 may be attached to the sides of the battery. At least one of these channels is of tapered cross-sectional area-in all embodiments both are. This is to ensure an equal flow of fluid-electrolyte or reaction gasto all the cells. As shown in Fig. 2, even distribution within the chamber of an individual cell may be aided similarly by the provision of tapered spaces 25, 26. Fig. 5 shows channels which taper in height, but which are of a uniform width considerably narrower than the cell width. Alternatively, the channels may be of uniform height and of tapering width. The inner wall of the channel may be multiply apertured to provide apertures corresponding to (though desirably slightly larger or slightly smaller than) the inlets or outlets or may have a large single aperture surrounding all the inlets or outlets if the battery wall is gap-free and milled smooth. Fig. 11 shows a cross-section through a cell in a metal/air battery. The air channels 35, 36 occupy the entire width of the battery wall and are arranged to taper only in height (Fig. 10, not shown). The cell chambers do not contain internal tapered spaces. Channels may be of elastomer or metal; they and the cells may be injection-moulded and may be fastened together by glueing, welding, clamping, or screwing. The fluid may be an electrolyte circulated (a) to dissipate surplus heat, (b) to maintain constant electrolyte composition, or (c) to supply reaction media from elsewhere, or may be air or other reaction gas. The cells may be fuel cells, metal/air cells, or other unspecified cells and accumulators.
Patent GB-1338078-A (GB)
Title: Fluid control valve
IPC: A62B9/02
Filed: 1970-12-18
Abstract: 1338078 Valves AGA AB 18 Dec 1970 [23 Dec 1969] 60220/70 Heading F2V A valve has a valve member 4 held on its seat 3 about an inlet 2 by a spring 10, and fluid pressure in chamber 6 which is connected to the inlet via opening 7 in the valve member, and is defined by a bellows or diaphragm acts on a spring-loaded part 8. At a predetermined inlet pressure, surfaces 9, 13 abut and thereafter inlet fluid pressure increase opens the valve against the loading of spring 10. Springs 10, 11 are adjustable. Valve member 4 may be opened mechanically.
Patent GB-1385190-A (GB)
Title: Water-insoluble image formation in macromolecular materials
IPC: G03C1/675
Filed: 1971-12-30
Abstract: 1385190 After-treating acrylamide polymers; gelatine FUJI PHOTO FILM CO Ltd 30 Dec 1971 [30 Dec 1970] 60846/71 Headings C3P and C3H [Also in Divisions G2 C7 D2 and B6] A terpolymer of acrylamide, methyl acrylate and N-(aminopropyl) acrylamide (70 : 27 : 3) is prepared by adding 1,3-propylenediamine to a copolymer of methyl-methacrylate and acrylamide. The terpolymer containing N-(aminoethyl)acrylamide may be prepared by using 1,2-ethylene diamine. A copolymer of acrylamide and allylamine is prepared by reducing polyacrylamide with lithium aluminium hydride under reflux. The above polymers or polymers containing amino groups (e.g. gelatine and other natural proteins) are rendered insoluble in water by treating them at a pH of not less than 8 with a metal ion and a compound of formula wherein Z and Z<SP>1</SP> complete heterocyclic rings; X is anion and Y is oxygen or sulphur. This process is used in various imaging processes (see Divisions G2 D2 and B6).
Patent GB-1279467-A (GB)
Title: Improvements in or relating to civil engineering machines
IPC: E02F3/36
Filed: 1969-12-19
Abstract: 1279467 Shovel excavators POCLAIN 19 Dec 1969 [6 Feb 1969] 61973/69 Heading E1F In an excavator the excavating assembly comprises an excavator tool-carrying arm 7 pivotally mounted about a substantially horizontal axis 11 at the outer end of an outer boom part 4 articulated about a substantially vertical axis 10 to an inner boom part 6 pivotally mounted on a turntable platform 3 of the excavator alongside the cab 5 thereof. When the two boom parts are not locked together they may be rotated about the axis 10 through up to 180‹ so that the boom part 4 can be swung to face behind the cab, when the excavator is to move between work sites, and the excavator tool can be secured at 30 to the platform 3.
Patent GB-731277-A (GB)
IPC: B41L11/00
Abstract: 731,277. Duplicating machines. RITZERFELD, W., and RITZERFELD, G. July 11, 1952 [Aug. 8, 1951], No. 17486/52. Class 100 (2). Texts separated from each other by more than one line space on the periphery of the printing cylinder are reproduced in immediate juxtaposition on a copy sheet in a duplicating machine comprising an impression cylinder 8 co-operating with the printing cylinder 1 and supported on arms 7 for movement towards and away from the printing cylinder under the control of cams 4, 5 rotating with the printing cylinder, and strippers 16 rotatable by cam means so as to separate the copy sheet from the printing cylinder, and being received in slots 20 in the periphery of the printing cylinder when it is in the initial position to allow the copy sheet to be introduced. The mechanism controlling the position of the impression cylinder 8 comprises a cam follower 9 cooperating with the cams 4, 5, a rocker 10 and links 11, 12 connected to the spindle of the impression cylinder by a link 13. The lift part of cam 4 moves the impression cylinder into engagement with the printing cylinder for printing the heading part of the copy sheet. This may be printed, for example, by inked types. The strippers 16 then move the copy sheet out of contact with the printing cylinder as the impression cylinder is tripped and guide springs 27 hold the copy sheet stationary. The printing cylinder continues to rotate and the copy sheet remains held until cam 5 causes the impression cylinder to be tripped back into operative position for the printing of the subsequent text on the copy sheet. The guide springs 27 are mounted on a shaft 26 supported on a bracket 30 which is pivoted on a fixed axle 31 at the front end and connected to move with the impression cylinder at the other. An arm 29 on shaft 26 co-operates with a cam fixed to the shaft of the printing cylinder to lift the guide springs in the initial position for the insertion of the copy sheet. Thereafter, the guide springs 27 press the copy sheet lightly against the table 32. Movement of the :mpression cylinder away from the printing cylinder then acts with the strippers to cause the copy sheet to be positively moved away from contact with the printing cylinder and to be held stationary. The strippers 16 are carried on a spindle 15 and controlled by a lever arm 17 co-operating with another cam on the printing cylinder and also by a lever 22 connected by a link 21 to the cam-follower 9. The cam on the printing cylinder is effective to move the strippers into the slots 20 in the initial position. The lever 22, by engagement of a pin 23 thereon with a lever arm 24, serves to displace the strippers to operative position, when the impression cylinder is tripped, for the purpose described above.
Patent GB-2001039-A (GB)
Title: Linerless plastics closures
IPC: B65D41/04
Filed: 1978-07-11
Abstract: A plastics closure is disclosed which has an integral sealing means formed by an annular resiliently deflectable V-shaped wall section 20 with a downwardly and outwardly projecting corner 26 on it for sealing against an upwardly facing sealing surface on a container, the closure thereby not requiring a separate sealing liner. The closure also has a stop member 28 projecting downwardly and inwardly from near the top of the closure skirt for engagement against the container mouth during application of the closure on a container to arrest the axial travel of the closure on the container. The closure may have paraffin or wax lubricant either in the plastics material of the closure or on the inside surface to reduce the torque required to seal the closure on a container. <IMAGE>
Patent GB-2003740-A (GB)
Title: Oxychlorination catalysts
IPC: B01J23/89
Filed: 1978-08-16
Abstract: Oxychlorination of ethylene to give vinyl chloride in a single step in the presence of a supported catalyst containing compounds of palladium, copper, iron, alkali metal and, optionally, rare earth metals.
Patent GB-2009046-A (GB)
Title: Keyboard actuator
IPC: G06F3/02
Filed: 1978-09-13
Abstract: A low profile keyboard actuator for a typewriter has levers 21-25 pivotally mounted on a transverse shaft 28 mounted immediately in front of the typewriter. Each lever has a generally horizontal arm which contacts the keys and a depending arm of uniform length biased by spring 36 to depress a key. A common operating bar 42 cyclically driven by eccentric 24 moves a lever to depress a selected key and then restores the lever. Depression of all but the selected key is inhibited by a plurality of vertically superposed, transversely shiftable, binary-coded slides 44 having teeth which bear against all depending arms except that one corresponding to the selected key. An electric keyboard 18 or data source may provide signals to shift the slides and actuate the bar 42. <IMAGE>
Patent GB-2006839-A (GB)
Title: Improvements in or Relating to Circular Knitting Machines
IPC: D04B15/58
Filed: 1978-10-06
Abstract: In a circular knitting machine, control profiles on a program drum (7) are provided by elements (42) of strip- like form having projecting butts (44), the elements (42) being removably mounted on the drum such that the butts form a plurality of annular control profiles, with each such profile comprising a plurality of butts (44) which are angularly spaced. Individual butts (44) of the respective elements (42) are removable, for example by cutting to allow the control profiles to be varied. <IMAGE>
Patent GB-2010220-A (GB)
Title: Magnetic-tape cartridge holding box
IPC: G11B23/023
Filed: 1978-11-23
Abstract: A magnetic-tape cartridge holding box comprises two plastics material bodies (1), (5) hinged together, each body being provided with a hollow handle-defining element (2), and one of the said bodies having spaced fins (3) defining seats for holding magnetic- tape cartridges.   <IMAGE>
Patent GB-788615-A (GB)
Abstract: 788,615. Clips. WALKER, Ltd., T. June 19, 1956 [July 13, 1955], No. 20215/55. Class 44 A lever grip fastening for a band, belt or the like comprises a lever 1 pivoted to a plate 4 or other part in such a way that the pivot 3 about which it turns is, or may be, spaced further from the plate 4 or other part when the lever is in an inoperative or non-gripping position than it is when the lever 1 is in a gripping position. As shown, the plate 4 is provided with ears 6 having apertures 5 of substantially rectangular shape for the pivots 3 of the lever 1, such that in the non-gripping position of the lever, Fig. 2, ample clearance is provided for threading two thicknesses of webbing 7a and 7b between the lever and the plates 4. The lever is provided with teeth 2 which penetrate both thicknesses of the webbing. According to the Provisional Specification, the pivots may be carried by the plate to engage apertures formed in the lever. Specification 710,814 is referred to.