baber/WOPTO huggingface dataset:
Patent GB-1126370-A (GB)
Title: Improvements relating to printed circuits
Inventor: APPLEBY THOMAS HORACE
IPC: H05K3/46
Filed: 1965-12-29
Abstract: 1,126,370. Printed circuits. BRITISH AIRCRAFT CORP. (OPERATING) Ltd. 21 March. 1967 [29 Dec., 1965], No. 55074/65. Heading H1R. In a multilayer or double-sided printed circuit, connection is made between conductors 4a. 4b which are separated by an insulating layer 56, by forming a hole in layer 56 where such connection is required, and forming the lower conductor 4a with a projecting portion 7 substantially the thickness of the layer 56; the layers are then assembled, and a welding electrode 8 is applied to the free surface of upper conductor 4b above the projecting portion 7 to form a welded joint 9. Conductors 4a, 4b are originally formed by photo-etching or electron beam scribing, and projecting portion 7 is preferably formed by selective etching, although an additive technique may alternatively be used. The multilayer circuit is built up progressively, welded joints being made where required at each level (Fig. 4, not shown). Fig. 1 (not shown) discloses a method of pinchwelding registering conductors within a hole in an intermediate insulating layer.
Patent GB-1324152-A (GB)
Title: Process for the production of alkyl cis-chrysanthemates
IPC: A01N53/10
Filed: 1971-11-26
Abstract: 1324152 Alkyl-cis-chrysanthemates SUMITOMO CHEMICAL CO Ltd 26 Nov 1971 [28 Dec 1970 11 March 1971] 55085/71 Heading C2C Alkyl cis-chrysanthemate of the formula where R is alkyl of 1-4 carbon atoms are prepared by reacting dihydrochrysanthemolactone with an aliphatic alcohol in the presence of an acid catalyst, the water produced being removed out of the reaction system.
Patent GB-1334375-A (GB)
Title: Oxidative-curing compositions
IPC: C08L67/08
Filed: 1970-11-20
Abstract: 1334375 Polyester compositions KUREHA KAGAKU KOGYO KK 20 Nov 1970 [20 Nov 1969 18 May 1970] 55365/70 Heading C3R [Also in Division C4] An oxidative-curing composition comprises an oxidative-curing substance having carboncarbon unsaturation and a polycyclic naphthenic hydrocarbon having an average molecular weight by vapour phase osmometry of 200- 1000, an aromatic proton density by nuclear magnetic resonance absorption spectrum of 0À5 to 10% at a # value of less than 4, a boiling point higher than 250‹ C., a Gardner colour number of 1-14, a specific gravity of 0À92-1À05, a H/C ratio by elementary analysis of 1À4-1À8, and sulphur, nitrogen and oxygen contents by elementary analysis of zero. The oxidative curing substance may be an alkyd resin prepared by the reaction of a saturated or unsaturated polybasic acid, e.g. phthalic or maleic anhydride, isophthalic, fumaric, azelaic, succinic, adipic or sebacic acid, a polyhydric alcohol, e.g. glycerine, pentaerythritol, dipentaerythritol, trimethylol propane, sorbitol or ethylene or propylene glycol, and a drying or semi drying oil, e.g. linseed, tung, safflower, soya bean, hemp seed, cotton seed, sesame or dehydrated castor oil. The polycyclic naphthenic hydrocarbons may be prepared by nuclear hydrogenation of a polycyclic aromatic compound having more than two aromatic rings obtained from the residual oils obtained in the production of olefins by treating petroleum hydrocarbons or fractions thereof, e.g. crude oil, heavy oil, light oil, kerosene or naphtha, at high temperatures or coal tars obtained in the gasification of and by dry distillation, which may have been alkylated with olefins having not more than 8 carbon atoms, and removing the fractions having boiling points lower than 250‹C. from the reaction product. The composition which may contain 5-1000 parts by weight of polycyclic naphthenic hydrocarbon per 100 parts by weight of alkyd resin, may also contain a curing agent, e.g. a naphthenate or octenate of cobalt, manganese, lead, calcium, zinc, or iron, and may be diluted with benzene, toluene, xylene, petroleum ether, kerosene, acetone, methyl ethyl ketone or ethyl or butyl acetate. In examples coating compositions comprise an alkyd resin or a linseed oil modified alkyd resin and a hydrogenated product of the fraction having a boiling point higher than 250‹ C. obtained by treating crude oil at 1900‹ C. with steam which may have been propylated or from oil obtained by treating naphtha with steam in the production of ethylene or by treating crude oil at 2300‹ C. with steam in the production of acetylene and ethylene and which has been propylated, cobalt naphthenate and optionally titanium dioxide.
Patent GB-1173279-A (GB)
Title: Improvements in or relating to the Treatment of Glass Surfaces
Inventor: HOWGEGO ANTHONY
IPC: C03C17/36
Filed: 1966-12-12
Abstract: 1,173,279. Electrically conductive coatings. MARCONI CO. Ltd. 28 Sept., 1967 [12 Dec., 1966], No. 55454/66. Heading B2K. [Also in Divisions B6; C7 and H1] A glass surface is treated to render one or more separate sub-areas thereof electrically conductive by producing a masking deposit of nickel or a nickel alloy on the glass surface, said deposit leaving exposed one or more subareas of predetermined size, shape and position, raising the glass to near its softening point, applying stannic compound to the exposed subareas, allowing the glass to cool, and removing the masking deposit. The masking deposit may be deposited as a continuous layer and etched to produce exposed areas (see Divisions C7 and B6). The plate may then be heated to 500- 700‹C whilst supported on a stainless steel sheet, sprayed with stannic chloride vapour, allowed to cool, and the masking deposit may be removed by immersion in an etchant solution (see Division B6).
Patent GB-1169548-A (GB)
Title: Process and apparatus for making Laminated Structures
IPC: B29C44/30
Filed: 1966-12-16
Abstract: 1,169,548. Foamed plastics laminate. WOODALL INDUSTRIES Inc. 16 Dec., 1966 [17 Dec., 1965], No. 56551/66. Heading B5N. A laminated structure comprises a rigid thermosetting synthetic resin foam layer 12 having a surface exhibiting a non-planar contour, a flexible cover sheet 15 being secured to said surface so that the cover sheet is held to the non-planar contour. In the method described for making a laminated structure, e.g. a motor vehicle trim panel, batches of a synthetic resin foam-forming mixture are applied in spaced relation from a mixer 17, Fig. 1, between cover sheets 15, 16. The assembly so formed is passed together with a caul 25, having a non-planar surface, between a pair of metering rolls 21, 22 and is cut into sections between batches of the form mixture before expansion of the latter. Each section is then transferred on a carrier plate to a shaped two-part press in which the foam mixture expands fully and is cured by heat. The upper and lower press parts are of porous material and include pipes through which suction is applied to the cover sheets 15, 16 to hold them in position during shaping. The cover sheets 15, 16 may be of paper, aluminium foil, or polyethylene lined paper, and the foam forming mixture may contain polymethylene polyisocyanate, polyoxypropylene sorbitol, and trichlorofluoromethane, to give a rigid foam. The assembly is then placed, together with a laminate consisting of an uncured polyurethane foam layer 13 and a vinyl plastics cover layer 14, into a shaped two part press 116, 126, Fig. 9, and heat and pressure are applied to cure the layer 13 and adhere the layers 13 and 16 together. The product is then removed from the press and trimmed. The laminate of layers 13 and 14 may be formed in a similar manner to that shown in Fig. 1 but in which the upper cover layer is removed before the foam layer 13 expands, or alternatively as shown in Fig. 6. In Fig. 6 batches of foam are applied between a cover sheet 72, and the layer 14 which is supported on a belt 64. The belt is advanced intermittently through an oven 80 in which the foam is expanded. During heating in the oven the sheet 72 is held down by bars 86, and the layer 14 is stretched by spring-loaded devices which grip its edges by suction. The layers 72, 13 and 14 are cut between batches and the layer 72 stripped off.
Patent GB-1338564-A (GB)
Title: Recording of digital pulses
IPC: G06F17/40
Filed: 1970-11-30
Abstract: 1338564 Selective signalling; feeding punched tape; counting apparatus SANGAMO ELECTRIC CO 30 Nov 1970 [4 Dec 1969] 56670/70 Headings G4H G4M G4D [Also in Division B4] In a recorder system, a counter feeds a recorder via a memory with a binary number such that the number is recorded on tape as a plurality of groups of bits, the groups being spaced along the tape. Two watt-hour meters each send pulses via a respective bi-stable buffer (preventing pulse loss at the end of a counting period) to a respective binary counter which is read out every 15 minutes to a respective register. The registers are gated out in turn, each in serial-parallel form, to actuate interpose members for punches in a paper tape punch. Each count is thus recorded in two successive columns across the tape, a parity bit also being derived and punched in each column. A hole is also punched in a time track for the first column of each 15 minute set of four columns. A motor driving the paper tape unit also actuates contacts to provide timing signals for the system. Applicacation to measuring gas flow, liquid level, and highway traffic (pneumatic road tube or electronic vehicle detector) are also mentioned. Power supply.-In the case of power failure, pulses for driving the motor are derived from a battery-driven oscillator instead of the A.C. line supply, the switching on of the oscillator being automatic in this situation, the battery normally being recharged (indirectly) from the line supply under control of a D.C. regulator. If the battery voltage falls below 10À5 volts, the system shuts down after punching a hole in each position across the tape to violate parity. Tape advance.-In Fig. 10, paper tape is advanced from right to left for punching at 281, by an L-shaped bracket member 317 driven along a rectangular path in the vertical plane by an eccentric motor-driven cam engaging the interior of a hole in the vertical portion of member 317 (hidden behind plate 313), so that pins 318a-318c engage sprocket holes in the tape to lift it from fixed pins 312a-312d, move it left, lower it on to the fixed pins again and disengage the pins 318a-318c, and move the member 317 back to its starting position. The fixed pins 312a-312d are on a member 312 the position of which is adjustable by screws 3131.
Patent GB-1291939-A (GB)
Title: Flame shield for a gas turbine engine
Inventor: LEWIS BRYNLEY
IPC: E04B1/94
Filed: 1970-11-30
Abstract: 1291939 Flame shields ROLLS ROYCE Ltd 30 Nov 1970 56738/70 Heading A5A [Also in Divisions F1 F2 and B5] A flame shield 28 for a gas turbine engine comprises a sheet of refractory metal 30 having on at least the side subject to flame attack a coating 31 of a material which prevents oxidation of the sheet 30 and on the other side a thermally insulating layer 32. The shield 28 may be disposed between the combustion equipment (14) of a gas turbine ducted fan engine (Fig. 1 not shown) and a strut (26) through which pass service pipes (27) from the engine to an aircraft in which the engine is mounted. The shield is arcuate, subtending an angle of 85 at the engine axis. The metal sheet 30 of the shield may be of tantalum, niobium, molybdenum, tungsten, ductile chromium or an alloy of any of these metals. The anti-oxidising coating 31 may be applied to both sides of sheet 30 and may be of a silicide-based compound, alumina with a sealing glaze of high temperature glass, or aluminium. Alternatively the coating 31 may be an aluminium-tin alloy containing substantially equal amounts by weight of aluminium and tin, or a hafnium alloy containing 20 to 27% by weight of tantalum. To protect the coating 31 from physical damage on the side of sheet 30 subject to flame attack a thin metal sheet may be placed thereover. The thermally insulating layer 32 may be a first layer 34 of asbestos fibres impregnated with phenolic resin and a second layer 35 of a felt made from quartz and silica fibres. A further sheet 33 of steel may be provided.
Patent GB-1126548-A (GB)
Title: A plant for straightening and severing strip metal
IPC: B21D1/02
Filed: 1966-12-23
Abstract: 1,126,548. Straightening; metal strip feeds. I. UNGERER. 23 Dec., 1966 [8 Jan., 1966], No. 57813/66. Headings B3E and B3W. Apparatus for straightening and severing strip metal comprises shearing means, a straightener comprising straightening rolls, and drive means, including a cylinder and piston, for imparting to said straightening rolls an intermittent drive so as to advance a strip in engagement with said straightening rolls in steps of predetermined length. Strip 1 from a coil 2 is fed to a shear 4 by a roller straightener 3, rolls of which are rotated intermittently by a transmission 6 driven by an endless belt 5 advanced in steps by a gripper 9 reciprocated by piston means 7, the length of stroke being adjusted by a stop 10. The transmission 6 may comprise a sprocket engaging holes in the belt or roller ratchet mechanism. In another embodiment, Fig. 2, straightener rolls are driven through ratchet means 18, 19, by rack and pinion mechanism driven by a piston 17. Two rack and pinion mechanisms driven by separate pistons may be used to drive the ratchet means.
Patent GB-1379287-A (GB)
Title: Bubble blowing toy
IPC: A63H33/28
Filed: 1972-12-14
Abstract: 1379287 Bubble blowing toys HOT ITEMS Inc 14 Dec 1972 [27 April 1972] 57866/72 Heading A6S Squeezing the compressible container 10 of a bubble blowing toy containing bubble forming liquid 12 forces a piston 24, Fig. 2, up its cylinder 22, Fig. 3, so that a bubble forming ring 26 coated with a film of the liquid in a well 20 is raised above the neck of the container ready for bubble blowing, and simultaneously forces liquid at the bottom of the container up a dip tube 34 into the well. A baffle 36 above the dip tube 34 deflects liquid down into the well 20. Interengageable ridges 38, 40 inside the cylinder 22 and around the piston 40 prevent the latter lying beyond the Fig. 3 position shown. The container 10 and other parts are made from a plastics. The well 20 is a friction fit in the neck of the container, and the dip tube 34 is a friction fit in a hole through the bottom of the well. The bubble forming ring 26 comprises two ring-shaped parts connected by a flexible hinge 58 at one side but spaced slightly apart by pips 62, to leave a narrow, liquid retaining gap 64. A two-part stud at the base of the bubble blowing ring 26 is a friction fit within a hole 44 in the base of the piston 24. A series of ridges (66), Fig. 7 (not shown), around the ring. 26 help to retain bubble forming liquid. A cap 16 is screwed onto the neck of the container 10 when the ring 26 is down in the well :20. In a modification, Fig. 11 (not shown), the bubble forming ring has three bubble openings (82), instead of one, and its mounting stud is arrow shaped to snap into an opening in the piston. The container 10 is moulded to represent a comic animal, Fig. 1 (not shown). Reference is made to Specification 1207292.
Patent GB-1401774-A (GB)
Title: Petroleum resins
IPC: C08F236/04
Filed: 1971-12-15
Abstract: 1401774 Continuous production of petroleum resins IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Nov 1972 [15 Dec 1971] 58226/71 Heading C3P A process for the continuous production of petroleum resins comprises continuously polymerizing an unsaturated hydrocarbon feedstock in the presence of a Friedel-Crafts catalyst by passing the feedstock through a plurality of polymerization zones alternating with cooling zones and adding catalyst to each polymerization zone. The feedstock may be heat-soaked to dimerize cyclopentadiene. The catalyst may be a halide of aluminium, iron, tin, boron, zinc, antimony or titanium, optionally together with hydrogen chloride or hydrogen bromide and/or an aromatic solvent, e.g. toluene, xylene, cumene or p-cymene. The reactor may comprise 2 to 8, preferably 3 to 5, pairs of alternating zones in the form of tubular reactors. The cooling zones may be water-cooled. The catalyst may be removed from the product by treating with aqueous alkali, ammonia or C 1-4  alkanol.
Patent GB-1157549-A (GB)
Title: Smokehouse Control System.
Inventor: MOSKAL LE ROY G
IPC: G05B19/44
Filed: 1967-12-22
Abstract: 1, 157, 549. Fluid-pressure servomotor systems; time control of electric circuits. ALKAR ENG. CORP. Dec. 22, 1967, No. 58522/67. Headings G3P and G3T. [Also in Division A2] The temperature and humidity in a food smokehouse 10 are controlled by means of wet and dry bulb thermometers 151, 153 which actuate leak valves 150, 152 to transmit signals to force balance pneumatic amplifiers 146, 147 supplied with air from source 28. The amplifiers compare the incoming signals with set point signals in lines 41, 47 and produce output signals in lines 156, 157 which are transmitted via valves 158, 159 to servomotors 161, 162, 165 to position dampers 13, 14, steam admission valve 21 and valve 18 controlling steam flow from boiler 16 to heat exchanger 15. A recorder 154 records the pressure variations in lines 148, 149. The set point signal in line 41 is produced by regulators 36, 81, 98, 118 in sequence, each regulator having an associated electric timer 50, 65, 85, 105 and the arrangement being such that for an initial period timer 50 opens solenoid-operated valve 39 to allow the pressure in line 41 to rise to that value set by regulator 36. At the end of the initial period, timer 50 closes valve 39, and switch 59 supplies timer 65 to start the latter. During the period set by timer 65, valve 76 is open to admit air from regulator 81 to line 41. When timer 65 closes valve 76, switch 70 supplies timer 85 and valve 95 opens to connect regulator 98 to line 41. During the next period valve 95 closes and valve 115 is opened to render regulator 118 effective. The pressures delivered by the regulators are set with the aid of temperature-calibrated gauges 38, 77, 97, 117. The set point pressures in line 47 are produced by regulators 43, 82, 99, 119 which are effective in sequence when valves 46, 75, 102, 122 are opened by the timers. Motors 161, 162 are arranged so that the latter responds to low signal-pressures in line 160 whereas the former responds to high pressures. During the final period, timer 125 is effective and valve 138 is opened to admit the pressure set by regulator 140 to line 47. Switches 129, 132 are closed to energize coils 134, 135 to rotate valves 158, 159 clockwise through 90 degrees so that amplifier 146 is ineffective and motors 161, 162, are controlled by amplifier 147 to produce a final baking. If switch 132 is open, the smokehouse conditions during the final period are controlled solely by amplifier 147 setting motor 165. If smoke is required during any period, corresponding switches 60, 61, 91, 111 will be closed to energize coil 173 to open valve 172 to cause motor 170 to open smoke inlet valve 25. When timer 125 cancels out, indicator lamp 143 is lit to indicate complete of the cycle. A gas fired burner may replace boiler 16 and the pneumatic controls may be replaced by corresponding electrical devices.
Patent GB-590567-A (GB)
Abstract: 590,567. Knitting-machines. BRAY & SONS, Ltd., A., and STAPLES, F. Dec. 7, 1944, No. 24469. [Class 74 (ii)] A circular machine has a one-piece mainshaft 11 journalled in the main frame 15 in ball or roller bearings 21, and the main frame supports thrust bearings 22 to co-act with two freely mounted gears 12, 13 on the shaft between the journal bearings. The gears 12, 13 are selectively clutchable to the shaft 11 by a double-acting clutch element 14. Co-axial recesses separated by annular partitions 20 are provided on the opposite faces of the upright members of the main frame to house the ball and roller bearings 21 and the thrust bearings 22. Oil ducts are provided extending radially inward from the outer surface of the frame into the partitions 20 so as to lubricate both sets of bearings. Specification 586,399 is referred to.
Patent GB-1408578-A (GB)
Title: Apparatus for driving a tube into the ground
IPC: E02D11/00
Filed: 1972-12-28
Abstract: 1408578 Boring earth etc; pile driving A B COOK 28 Dec 1972 [28 Dec 1971] 59786/72 Headings E1F and E1H Apparatus for driving a tube T and permitting the tube to be cleaned out while being driven comprises a hollow member 10, drive mechanism 16 surrounding the member and including a piston 28 and cylinder 22, a hollow piston rod 36 secured at one end to the piston, a ram 18 secured to the other end of the rod, means 20 for aligning the member with the tube, and means 21 for supplying air to the cylinder to cause the ram to strike the means 20 to drive the tube. Air introduced into cylinder chambers 32, 34 when a valve 54 is set as shown in Fig. 1 drives the piston down and the ram impacts a flange 14 on the means 20. As impact occurs a cam 66 moves the valve to the position shown in Fig. 3 to supply air to the chamber 34 only to raise the ram. Just before the end of the upward movement of the ram a second cam 68 returns the valve to the position supplying both chambers and the upward movement is cushioned. The position of the cams may be adjusted so that the piston strikes a flange 12 on the member 10 and does not strike the means 20 so that a tube may be removed from the hole. The tube is cleaned out by inserting a drill through the member 10, drilling mud discharging from a connection at the top of the member 10.
Patent GB-1483590-A (GB)
Title: Fan assemblies
IPC: F04D29/66
Filed: 1973-12-27
Abstract: 1483590 silencing of axial-flow fans CHRYSLER UNITED KINGDOM Ltd 26 Nov 1974 [27 Dec 1973] 59802/73 Headings F1B and F1C A fan assembly e.g. for cooling I.C. engines comprises an impeller 11 located within a duct 10 which has apertures 14 spaced around the part of the duct encircling the impeller, and acoustic absorption material 15 such as an open cell polyurethane foam surrounding the duct and projecting into the apertures, which may extend the length of the duct and may be oblique relative to the longitudinal axis of the duct. Material 15 may be surrounded by a plastics or rubber acoustic barrier material 16 which reflects the noise. Stator blades 13 may be located upstreams of impeller 11.
Patent GB-1427730-A (GB)
Title: Electrical switchgear
IPC: H01H33/53
Filed: 1973-01-29
Abstract: 1427730 Fluid filled circuit-breakers REYROLLE PARSONS Ltd 25 April 1974 [29 Jan 1973] 60068/72 Heading H1N In a fluid filled circuit-breaker a fluid circulating pump 21 within the fluid filled enclosure 10, 10A is arranged to produce a forced circulation of the fluid and is driven by an induction motor which is wholly submerged within the fluid and has its stator 23, 23A electromagnetically linked with one of the main current carrying conductors 16 so that the motor is driven by current in the conductor 16. As shown the stator comprises horseshoe-shaped laminations 23 clamped, by a non-magnetic bolt 30, to the conductor insulator 17 and secured to laminations 23A in which a squirrel-cage rotor 29 is rotatable. The armature drives an archimedian screw 24 in the pump 21 which can take in cool oil from the bottom of the tank 10 via a pipe 27 and pass it to an outlet 28 (Fig. 1) or take in warmer oil from the top of the tank to deliver it to an external radiator outside the tank for natural or forced cooling before return to the bottom of the tank (Fig. 2, not shown).