baber/WOPTO huggingface dataset:
Patent GB-1352634-A (GB)
Title: Electroluminescent displays
IPC: G09F9/33
Filed: 1971-04-19
Abstract: 1352634 Electroluminescence SANDERS ASSOCIATES Inc 19 April 1971 [4 March 1970] 22888/71 Heading C4S [Also in Division H1] An electroluminescent display device includes a substrate comprising a plurality of electrical conductors 76 in a plane, at least one discrete semi-conductor chip 92 bonded to one of the conductors, a first electrode or electrodes 72 on the side of the substrate away from conductors 76, perpendicular electrical interconnectors 68 and insulator 70, insulator 80 overlying electrodes 72, transparent second electrode 84 and single EL phosphor layer 82. The structure reduces stray capacitance. SCR switching devices and decoding functions are instanced. Polarized layer 88 may be included and a plurality of s/c chips bonded to a selected electrical conductor in the form of a printed circuit path. In fabrication, a 14 thou Cu sheet is coated with photoresist, exposed and etched to form pillars 68, 8 to 10 thou, high, layer 70 added, e.g. of epoxy glass cloth, the assembly sanded, grounded, plated with 5 thou. Cu and etched to form electrodes 72. A bright Ni or other metallic plating 74 isolates contaminants from the phosphor and is a reflective surface. The other side of the Cu sheet is etched using photoresist to form back connections to which SCR chips will be bonded, unmasked areas being Au plated to provide conductor layers 76 (or (106) in Fig. 4, not shown). Terminal 73 is masked by tape and 1À5 thou. dielectric layer 80 (e.g. barium titanate) sprayed or cast on for example. Phosphor layer 82 may be sprayed or silk screened to ¢ thou. thickness. and may be ZnS : Cu, Cl. Common electrode 84 (e.g. of tin, stannic or indium oxide) may be coated as a thin film directly on phosphor 82 or on a fibrous glass sheet or other vitreous body The device may be laminated between 5 thou. plastics layer 86 providing a moisture sealant and polarized layer 88 improving contrast and mechanical support. Preferably the SCR base (anode) is to the conductors by a conductive epoxy, wire leads attached to terminals and chips ultrasonically or the SCR may be in a package from which leads are connected to respective terminals, and epoxy 96 applied. Pre-etched connector leads 98, 99 (also Fig. 4) or eyelets or protruding pins may be used, the structure cast in resin 100 and leads 98, 99 bent at right angles. In Fig. 4, layer (116) comprises the dielectric 80 and phosphor 82 of Fig. 3. Alternatively, the means for applying signals to the SCR gate electrodes may be built into the integrated structure. A chip of a seven-segment decoder may be bonded to a pad in the structure, and to same or an additional layer. Displays may be alpha-numeric, meter dials or fractional numerics for example.
Patent GB-1369780-A (GB)
Title: Vehicle hydraulic system
IPC: B60T13/22
Filed: 1973-05-14
Abstract: 1369780 Hydraulic braking systems BENDIX CORP 14 May 1973 [22 May 1972] 22892/73 Heading F2F In a vehicle hydraulic system having a power steering gear 18 and a control valve 14 therefor provided with an inlet port 12 connected to the discharge port of a pump 10 and an outlet port 20 connected to a reservoir 22 through a return line 24, a brake system is provided comprising a spring actuated hydraulic fluid pressure released actuator 26, a first valve 30 in the return line 24 controlling communication from the outlet port 20 to the actuator 26 and from the actuator 26 to the reservoir 22 and a second valve 31 for developing a predetermined back pressure supply; the first valve 30 having a first position in which the back pressure supply is communicated to a chamber 48 on one side of the actuator piston 46 in opposition to the spring 52 and a second position in which the chamber 48 is communicated to the reservoir so that the piston 46 is moved by spring 52 to the brake applied position. In the released position of the actuator shown, a spool 64 of first valve 30 is urged by a spring 66 rightwardly whereby chamber 50 of the actuator 26 is communicated with the control valve outlet port 20 through port 60 and channels 76, 88. The back pressure in channel 88 is developed by a pressure regulating valve 34 of the second valve 31 and maintains piston 46 in the release position with spring 52 compressed. Chamber 48 communicates with reservoir 22 via port 56, passages 98, 100, channels 86, 74 and port 58. The back pressure developed by a further pressure regulating valve 32, in a channel 72 which is greater than that developed in channel 88 by valve 34 by virtue of the differing strengths of valve springs 106, 108, is ineffective since lands 80, 90 on the valve spool 64 and a housing 53 respectively, overlap. To apply the brake actuator a treadle 116 is depressed, causing leftward movement of valve spool 64 whereby channel 88 and hence chamber 50 is cut off from channel 76 and communicated to a channel 74 in continuous communication with reservoir 22. Chamber 48 is connected to the predetermined back pressure supply in channels 72, 86 which overlap as lands 90 and 80 are disengaged. A land 92 closes off communication between channels 86, 74 thereby subjecting chamber 48 to the predetermined supply pressure valve which then augments the spring 52 to acceleration piston 46 to its brake applied position. In a further embodiment a single pressure regulating valve is employed in the second valve 31 which maintains the same predetermined pressure on the piston in the brake release and apply positions.
Patent GB-356410-A (GB)
Title: Control means for internal-combustion engines
IPC: F02M7/133
Filed: 1930-07-30
Abstract: 356,410. Regulating ; spray carbureters. DODSON, E., 66, Lewin Road, Streatham, London. July 30, 1930, No. 22947. [Classes 7 (iii) and 7(vi).] In aircraft engines which are supercharged or have very high compression ratios, detonation under excessive induction-pipe pressures, produced, for example, by the pilot's overriding the altitude control at low levels, is prevented either by increasing the normal fuel supply so that the mixture is over-rich, or by the addition of anti-detonating fuel or other fluid. Fig. 1 shows a mixture throttle 6 between the carburetter and a blower 3 and connected to the pilot's control 7 through toggle linkage 18, 19, the joint 17 of which is actuated by an altitude device 8 connected by a pipe 9 to the delivery side of the blower, and by a pipe 10, 11 to the inlet of the induction system. A cock 12 in the latter pipe may be opened by a pilot's control 13 for overriding the altitude device, in which case the excess pressure in the blower delivery actuates a relay device 21 to open a supplementary fuel jet 26 in the carburetter. In a modification, the relay 21 is omitted, and the control 13 is connected directly to a cock on the carburetter which controls an air leak for aerating the fuel supply. In another form, Fig. 3, the pilot's throttle control 7 also opens a power jet 29 when the throttle is fully open, the relay device 21 actuating a valve 32 to supply anti-detonating fluid. In a further form, the altitude control 8 is connected to a separate throttle between the throttle 6 and the blower, and the overriding control 13 is connected directly to the supplementary fuel jet. Fig. 5 shows a construction of the relay device 21. A pipe 22 admits blower delivery pressure to a casing containing a collapsible device 36 acted on by a spring 37 and connected to a valve 39, which controls the connections between the inlet 43 and outlet 44 of the actuating-fluid and the opposite sides of the relay piston 42. Specification 358,289 is referred to.
Patent GB-944310-A (GB)
Title: Polyurethanes
Inventor: HAGGIS GEOFFREY ARTHUR
IPC: C08G18/67
Filed: 1961-06-26
Abstract: Polyurethanes consisting essentially of repeating units of the general formula: [(-OOCNH-CHR-NHCOO)aX-] wherein R represents H, an alkyl, aryl or aralkyl radical and X represents the hydrocarbon residue of a polyhydric alcohol, which hydrocarbon residue may optionally be interrupted by hetero atoms such as O, N or S or by arylene radicals and where a is an integer one less than the number of hydroxyl groups present in the polyhydric alcohol from which X is derived, are prepared by reacting a diester of an N, N1-biscarbamic acid of the general formula RCH(NHCOOY)2, wherein R is as hereinbefore defined and Y represents a hydrocarbon or substituted hydrocarbon radical with a polyhydric alcohol in the presence of an ester interchange catalyst. The polyhydric alcohol may be monomeric or it may be a polymer such as a polyester or a polyether glycol. Many reactants are specified or exemplified.  The ester interchange catalysts specified are dibutyltin diacetate, dibutyltin dilaurate and tetrabutyl tetanate. The polyurethanes produced by the process of the invention may be further reacted with an organic polyisocyanate.ALSO:Polyurethane films or coatings are prepared by applying a thin layer of a reaction mixture comprising a diester of an N,N1-biscarbamic acid of the general formula RCH(NHCOOY)2, wherein R is hydrogen or an alkyl, aryl or aralkyl radical and Y is a hydrocarbon or substituted hydrocarbon radical, a polyhydric alcohol, an ester interchange catalyst and, optionally, a solvent to a substrate and heating the layer on the substrate to form the polyurethane in situ.  The polyurethanes may also be prepared, dissolved in a solvent which may contain drying agents and cast in films on substrates, when the films may be hardened by heating.
Patent GB-280863-A (GB)
Title: Improvements in or relating to devices for automatically controlling the increase ofcurrent upon closing an electric circuit
IPC: G05F3/10
Filed: 1927-09-01
Abstract: 280,863. Andre, H., and Monnier, A. Nov. 19, 1926, [Convention date]. Regulation, automatic.-The current in an electric circuit is gradually established by the inclusion therein of a substance 3, Fig. 1, whereby a high and varying negative temperature coefficient. A constant resistance 6 may be added in shunt to the substance and several such combinations may be arranged in series so that the constant substances become short-circuited by the substances 3 in order. The substance 6 may be wound upon the substance 3 or otherwise disposed so as to heat it and a thermic screen mav be interposed to control the rate of such heating. Fig. 3 shows the substance 1 of high negative temperature co-efficient, constant substance 2 and screen 3 arranged so that by changing the washers on the supporting screens the rate of heating may be varied. The substance 3 is preferably composed of silver sulphide and sulphur as described in Specification 280,862, [Class 37, Electricity, Measuring &c.].
Patent GB-1435278-A (GB)
Title: Method of cutting bakery products
IPC: B26D7/10
Filed: 1974-05-23
Abstract: 1435278 Cutting bread KOMBINAT FORTSCHRITT LANDMASCHINEN NEUSTADT IN SACHSEN VEB 23 May 1974 [28 May 1973] 23031/74 Heading A4C A method of cutting bakery products such as bread, comprises cutting the product, while said product is at a core temperature of substantially 98‹C, with a band-knife having a toothed edge, the knife cutting speed being in the range of 7 to 10 metres per second and the product to be cut being advanced to the toothed edge at a rate in the range of 0À1 to 0À5 metres per second to give a rate of advance of the product in the range of 0À5 to 2À0 millimetres between entry of successive teeth of the cutting edge into the product. The toothed edge is maintained at a temperature below 7‹C and the product is irradiated with ultraviolet light during and/or prior to the feeding step. In the case of bread baked in tins, the bread is fed to the knife at an angle of 30 degrees to the horizontal.
Patent GB-819296-A (GB)
Title: Ink fountain mixer
IPC: B41F31/03
Filed: 1957-07-22
Abstract: 819,296. Converting rotary into reciprocating motion. GEGENHEIMER, H. W. July 22, 1957, No. 23073/57. Class 80 (1). [Also in Group XVI] An electric motor 86 drives a sprocket 68 and thereby an endless chain 64 running on sprockets 66, 68, the sprocket 66 and the entire motor assembly being mounted on an elongated member 10 itself supported in fixed brackets 16. A carriage 40 is slidably mounted on the member 10. The chain 64 runs between guide members 48, 50 and between member 50 and a supporting part 46 on the carriage on its respective runs. The chain carries a lug 64<SP>1</SP>. Mounted on the carriage is a pawl 96 frictionally held in either of two positions, in which it is aligned with the lug 641 when the latter is on the upper and lower runs of the chain respectively. With the panel in its upper position, the lug moves the carriage to the right, until the pawl engages a fixed cam 98 and is moved thereby to its lower position, whereafter the returning lug moves the carriage to the left. A second cam 102 completes the cycle.
Patent GB-1473670-A (GB)
Title: Process for the manufacture of prostaglandin-f2a and analogues thereof
IPC: C07C401/00
Filed: 1974-05-23
Abstract: 1473670 Prostaglandins SCHERING AG 23 May 1974 [30 May 1973] 23093/74 Heading C2C Compounds (C) in which one of R 1  and R 2  is OH and the other is H or methyl, R 3  is a substituted or unsubstituted aliphatic hydrocarbon group and X is a bivalent aliphatic hydrocarbon group which may be substituted and/or interrupted by at least one oxygen atom, are prepared by treating a lactone (A) in which Ac is acyl, with di-isobutyl-aluminium hydride or lithium-tri-tert.-butoxy-aluminium hydride to convert it to a lactol (B) and then treating the lactol with a Wittig reagent of formula Ph 3 P = CH-X-COOH. Specific compounds C mentioned are prostaglandin F 2 α, the 16-Me, 16,16-di-Me, 15-Me, 20-Et, 17- oxa and 17-oxa-20-Et analogues of prostaglandin F 2 α, and 16-phenoxy-17,18,19,20-tetranor-prostaglandin F 2 α.
Patent GB-921044-A (GB)
Title: Improvements in or relating to methods and apparatus for the reactivation of purifiers
IPC: B01D53/04
Filed: 1959-07-07
Abstract: In the purification of a gas at low temperature and a pressure of 500-3,000 p.s.i. by the use of a solid absorbent, the absorbent is regenerated by circulating warm gas and the purified absorbent is cooled by recirculating cold gas.  Oxygen and/or nitrogen may be removed from hydrogen at 1,800 p.s.i. and -375 DEG F. using silica gel.  Similarly, carbon dioxide and/or hydrocarbons may be removed from air.  The regeneration or recooling gas passing to the absorber may be passed in heat exchange relationship with the gas passing from the absorber.  Regeneration and recooling are preferably effected at the pressure of purification.  Gas for recooling may be passed through a coil immersed in liquid nitrogen.  Recooling may be effected with purified gas.  After effecting recooling in one absorption zone, the gas may be warmed up and used to effect regeneration in a parallel absorption zone. After effecting regeneration, the gas may be bled off and the residue exhausted by the application of suction, when the absorbent is ready to effect further purification.
Patent GB-1036807-A (GB)
Title: Memory
IPC: G11C11/04
Filed: 1964-06-05
Abstract: 1,036,807. Magnetic pulse storage apparatus. RADIO CORPORATION OF AMERICA. June 5, 1964 [July 2, 1963], No. 23408/64. Heading H3B. [Also in Division G4] A conductor 14, Fig. 1, passes through a cylindrical layer of magnetic storage material 10 having magnetostrictive properties as well as hard and easy axes of magnetization respectively extending lengthwise and circumferentially of the cylindrical layer; binary information being stored in discrete regions along the length of the cylinder by applying information pulses sequentially at clock-controlled intervals to the conductor while a mechanical stress pulse is transmitted from one end of the cylindrical layer to the other. At any instantaneous location of the stress pulse, the switching characteristics of the magnetic material are changed as shown in Fig. 4 from the unstressed characteristic 52 to the stressed characteristic 54, with the result that switching from one state to the other along the easy direction is effected by a lower value of conductor current. Each successive " 1 " or " 0 " information pulse 64, 66 produces an easy axis magnetization which is intermediate the stressed and unstressed minimum switching values. Consequently each information pulse sets up a characteristic local magnetization along the easy direction at the location along the cylindrical layer then reached by the stress pulse. Lower values of information pulses 60, 62 are used when the cylindrical layer is longitudinally biased either by current in a coil 20 or by a permanent magnet. Fig. 1 shows a storage array comprising two storage devices 8, 18, the respective cylindrical layers each having terminal absorbers 12 and an associated transducer 16. Operation is stabilized by a clock source 24 and the device in which the mechanical stress pulse is to be transmitted by energizing transducer 15 is selected by a word selection matrix 34. A write timer circuit 26 controls a start pulse source 30 to initiate the stress pulse and also determines the application of information from source 42 to the conductor 14 by opening gate 44. Stored information is read non-destructively by the start pulse source 30 initiating a further stress pulse in response to a read-timer circuit 28, this timer at the same time activating a sense amplifier 50 connected to the conductor 14 and disabling the bias source 48. The storage locations are then read out sequentially as the stress pulse passes along the cylindrical layer, the stress causing momentary increases in flux which induces characterising pulses in the conductor 14. The cylindrical layer of magnetic material may be a 70% nickel, 30% iron alloy deposited on a beryllium-copper conductor 14 by plating in the presence of a magnetic field. Alternatively the magnetic material may be deposited on a cylindrical substrate through which the conductor passes. It is mentioned that the anisotropic and magnetostrictive properties required may be provided by respective concentric cylinders of different material.
Patent GB-978534-A (GB)
Title: Improvements in polymeric additives for lubricating oils
IPC: C08F36/20
Filed: 1962-11-09
Abstract: A  polymeric  additive  for  lubricating  oils comprises an oil soluble copolymer of at least one diester of fumaric or maleic acid with a C3- 18 aliphatic alcohol and at least one mono-ester of fumaric or maleic acid with such an alcohol, the copolymer being derived from a polymerization mixture comprising 0.05-5% of a compound containing more than one vinyl or vinylidene groups. Specification 978,533  describes lubricating oil compositions containing these  polymers  and  also  their preparation. Specification 906,412 also is referred to.
Patent GB-443022-A (GB)
Title: Improvements in or relating to dyeing and printing
IPC: D06P1/66
Filed: 1934-08-14
Abstract: Acid wool or substantive dyes, dyeing with; regenerated celluloses, dyeing; printing.--In dyeing or printing fibrous materials with acid and/or direct dyestuffs, a mixture of a substance giving rise to cations capable of reducing the surface tension with a smaller molecular quantity of a substance giving rise to anions capable of reducing the surface tension is employed for pre-treatment of the materials or is incorporated in the dyebath or printing paste. Specified substances giving rise to p  the said cations are quaternary ammonium compounds containing an aliphatic residue having at least 8 carbon atoms, e.g. dodecyl-, octadecenyl- and undecenyl-pyridinium sulphates and the corresponding halogenides, quaternary ammonium derivatives of diamines substituted by higher fatty acid or alkyl residues, and quaternary ammonium derivatives of tertiary aliphatic amines, e.g. triethylcetylammonium iodide. Specified substances giving rise to the said anions are salts of alkyl sulphuric acid esters containing an aliphatic residue having at least 8 carbon atoms, e.g. the sodium salt of dodecylsulphuric acid ester.  Thus, the fibrous material, e.g. cotton, viscose or copper artificial silk or half-wool, pre-treated with an aqueous solution of dodecylpyridinium sulphate, may be dyed in a bath containing Sirius orange G, common salt and a mixture of 3 molecular parts of dodecylpyridinium sulphate with 1 molecular part of the sodium salt of dodecylsulphuric acid ester; if Alizarin sky blue B is also present in the dyebath, a green dyeing may be obtained on both animal and vegetable fibres in a mixed weave.  Specifications 316,090, 328,675, [both in Class 2 (iii)], 358,202, 364,104, 372,325, 390,218, 408,754, and 413,357 are referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of triethylcetylammonium bromide and high molecular quaternary ammonium compounds derived from quinoline and isoquinoline as substances giving rise to cations capable of reducing the surface tension.  This subject-matter does not appear in the Specification as accepted.
Patent GB-583742-A (GB)
Title: Improvements in or relating to metal windows
IPC: E06B1/36
Filed: 1944-11-24
Abstract: 583,742. Window frames. ALMARCO, Ltd., and FISH, K. R. G. Nov. 24, 1944, No. 23477. fCIass 20 (iii)] A fixed metal or plastic window frame compris.es units with curled edges united by interlocking members. As shown, the invention is applied to a metal bay window, the window sashes being indicated at c. The frame comprises two similar sections a, b which are joined on the outside of the bend by a corner plate f having curled edges f<1> to engage the curled edges of the sections, while on the inside of the bend the curled edges are in contact and united by dowel pins d carried on a plate e. In a modification the inner curled edges may be arranged to be in alignment or one within the other when they may be united by a single pin or rod, and may form a hinge for the corner of the bay.
Patent GB-880560-A (GB)
Title: Improvements in or relating to wheel and rim structures
IPC: B60B25/22
Filed: 1958-07-22
Abstract: 880,560. Vehicle wheel rims. KELSEYHAYES CO. July 22, 1958 [Sept. 4, 1957], No. 23582/58. Class 144 (2). In a wheel comprising a body member and a pair of endless annular rim members encircling the body member, the rim and body members are wedgingly interlocked by rotation of one of the members with respect to the others. In one form, one rim member 3 (Fig. 6) is secured to the body member 1 (Fig. 2) by fasteners 11 with each of a plurality of circumferentially spaced obliquely oriented flanges 16 on the member 3 having a radial line contact with the surface 19 of the body 1. Each of the corresponding flanges 25 on the rim member 4 (Fig. 5) is then inserted between a flange 16 and the surface 19 and the members interwedge on rotation of the rim member 4. The assembly may be secured by a bolt which passes through holes 30, 31 in a pair of flanges 16, 25 and is screwed into the body 1. In another form (Fig. 7), one rim member 47 has a continuous flange 51 placed in contact with the surface 42 of the body 40, and the other rim member 48 has circumferentially separated inclined flanges 56 which fit into corresponding grooves in the surface 42<SP>1</SP> of the body to wedge the rim member 47 between the body and the rim member 48 on rotation of the latter.