baber/WOPTO huggingface dataset:
Patent GB-1356073-A (GB)
Title: Adhesive based on an epoxy resin
IPC: C09J163/02
Filed: 1972-11-02
Abstract: 1356073 Epoxy-resin compositions TH GOLDSCHMIDT AG 2 Nov 1972 [27 Nov 1971] 50632/72 Heading C3B An adhesive composition comprises an epoxy resin, preferably one based on diphenylol propane, a curing agent selected from an amine, an amide, a derivative of an amine or amide or a mixture of two or more thereof, and from 1- 15% by weight based on the total weight of the adhesive of a 1,4-polybutadiene of predominantly cis-configuration preferably containing not more than 25% by weight of 1,4-transpolybutadiene. In the examples adhesives are prepared from an epoxy resin based on diphenylol propane; 1,4-cis-polybutadiene; and any one of the following curing agents; polyaminoamide, triethylenetetramine and isophoronediamine, and their tensile shear strengths and peel strengths are determined.
Patent GB-1411159-A (GB)
Title: Carburettor for an internal combustion engine
IPC: F02M23/04
Filed: 1973-11-01
Abstract: 1411159 Spray carburetters FORD MOTOR CO Ltd 1 Nov 1973 [3 Nov 1972] 50767/73 Heading F1B A carburetter having means for compensating for changes in air density has an induction passage 14, a Venturi 12, a choke valve 20, an air passage 30 in parallel with the induction passage and which opens into the induction passage downstream of the Venturi, and ambient pressure and temperature responsive means 56 for controlling the overall air/  fuel ratio in the intake manifold by controlling airflow through the air passage and control means 60 coupled to the choke valve 20 to maintain a controlled supply of air to the air passage 30 when the choke valve is rotated to a choking position. Flow through passage 30 is controlled by valve member 38 which includes a first valve 40 which admits air to the induction manifold through a port 36 when the engine is idling and a second valve 46 which allows air to flow to a port 34. Spring 49 biases the valves to the closed position and its effect is overcome by a capsule 56 acting through lever 52 when the capsule expands as the air density decreases. A valve 60 controlling flow of air into the chamber 29 is mechanically linked to choke valve 18 and when the valve 18 is in the closed position the valve 60 is in a position to allow sufficient air to pass to correct the air/fuel ratio when ambient conditions require it.
Patent GB-1243353-A (GB)
Title: A prosthetic appliance
Inventor: LUMB WILLIAM VALJEAN
IPC: A61F2/30
Filed: 1968-10-25
Abstract: 1,243,353. Spinal prosthetic appliances. COLORADO STATE UNIVERSITY RESEARCH FOUNDATION. 25 Oct., 1968, No. 50806/68. Heading A5R. A prosthetic appliance 10 to replace vertebrae removed from the spinal column of vertebrates, comprises a unit for each vertebra removed and each unit comprising two elements 12 + 14 adapted to be secured together, one element having a stem 28 corresponding to the natural neural spine 30 and the other element having a trough for the spinal cord in a face which contacts a face of the other element and both elements having connecting means 38, 46, Fig. 1, for attachment to an adjacent vertebra or unit of a plurality of units. The units may be linked together for use where several vertebra are removed. The element 14 has ears 38 to attach it to the natural centrum 32 by screws 40 and stem 28 may be attached by arches 46 to spine 30. Ears 38 may be replaced by sockets to link several units and the arches 46 may be replaced by straight braces 46a, Fig. 7. In the embodiment of Fig. 7, three units have a spring element 60 contained in a bore through the intermediate unit and in conical sockets in the end units so that any flexion is resisted by the spring. The elements of individual units may be secured together by screws in countersunk threaded openings 36.
Patent GB-1260258-A (GB)
Title: Typewriter
IPC: B41J19/78
Filed: 1970-10-28
Abstract: 1,260,258. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 28 Oct., 1970 [19 Nov., 1969], No. 51105/70. Heading B6F. A typewriter platen 15 may be driven incrementally or continuously under control of keys 16-19 by a motor 20. Keys 16, 17 operate contacts 66, 62 respectively to cause incremental drive in forward or reverse direction. Key 16, through contacts 66, energizes an electromagnet 65 which withdraws a probe 83 from a slot 82 in a positioning disc 81 normally driven by the motor 20, the probe further closing contacts 60 to close the motor circuit. The electromagnet 65 is coupled to the probe 83 by a pawl 86 which releases the probe soon after the probe has been disengaged from the slot 82, so that after a half revolution of the disc 81 the probe 83 re-enters a slot 82 so opening contacts 60 and stopping the motor. A shield 90, pivotable against springs 95 by engagement with the probe 83, prevents the probe from reentering the slot 82 immediately. Key 17 acts similarly but additionally causes reversal of the motor. Keys 18, 19 cause fast and slow continuous drive of the platen 15 respectively, each key being displaceable in two directions for forward and reverse rotation of the platen. Each key operates two pairs of contacts whichever direction it is displaced, one pair determining the speed of the drive to the platen and the other acting to disengage a clutch 64 to render the disc 81 inoperative, to disengage a detent pawl 42 from its wheel 41, and to close the motor supply circuit.
Patent GB-1088287-A (GB)
Title: Brightening of aluminium and alloys thereof
Inventor: WELLS FREDERICK HERBERT
IPC: C23F3/03
Filed: 1963-12-30
Abstract: A composition for brightening Al and Al alloys from which free nitric acid is absent comprises phosphoric acid, cupric nitrate and water. Al or Al alloy articles are brightened in a bath containing ortho, pyro or other condensed phosphoric acid, 0.5-20% by weight cupric nitrate, up to 50% H2SO4 up to 5% NH4 ions and less than 25% water, at 80-125 DEG C. for 0.5-10 minutes.  The cupric nitrate may be formed in the bath by mixing cupric sulphate and NH4, Al or an alkali metal nitrate.  The NH4 ions may be added as ammonia, NH4 nitrate, sulphate or phosphate. 5% of each of HCl, boric acid, ferrous sulphate, titanium or vanadium compounds, oxalic or tartaric acid and carboxymethylcellulose as a wetting agent or non-ionic surface active agents may be present.  The process may be accompanied by electro-polishing in which the article is the anode, the bath the electrolyte and a potential of 10-20v applied. During use the bath may be replenished by adding cupric or ammonium nitrate or HNO3, topping up with the original solution and adding water to maintain the specific gravity within defined limits. After brightening the article is washed in hot water, in a desmudge solution of HNO3 and water, chromic and sulphuric or phosphoric acids or a mixture of an acid bisulphate and Na dichromate and is finally rinsed in cold water and hot demineralized water before drying.  The brightened surface may be anodized or coated with a transparent lacquer.
Patent GB-1432218-A (GB)
Title: Method of treating a plastics substrate for the subsequent bonding thereto of a metal coating
IPC: C23C18/40
Filed: 1973-11-05
Abstract: 1432218 Coated products MACDERMID INC 5 Nov 1973 [3 Nov 1972] 51279/73 Heading B2E [Also in Division C7] A plastics substrate to be bonded to a metal coating is pretreated by forming a laminate of the plastics substrate and a sacrificial anodised metal foil by bonding the substrate and the sacrificial anodised metal together under heat and pressure, an organic silicon compound being provided between the anodised metal foil and the substrate and chemically stripping the sacrificial metal foil from the laminate. The anodised metal foil may be aluminium foil which has been anodised in phosphoric acid solution or sulphuric acid solution. Numerous suitable organic silicon compounds are specified, and gamma-aminopropyl trimethoxy silane and N-beta-(aminoethyl)-gamma-amino-propyl trimethoxy silane are preferred. The plastics substrate may be of a "filled" polymer, whioh is made by blending into the polymer during a moulding operation particles of titanium dioxide, asbestos or sand. In the Examples glassreinforced epoxy resins are used. Prior to the removal of the sacrificial metal foil the substrate is ready for metal plating and in the Example this is effected by imersing the substrate in a palladium-stannous chloride hydrosol activator solution.
Patent GB-1034559-A (GB)
Title: Improvements relating to the production of ªÏ-lactams
IPC: C07D201/08
Filed: 1964-12-17
Abstract: e -Caprolactam is prepared by heating e -caprolactone with an excess of ammonia in aqueous solution at 275 DEG  C. or above under pressure in the presence of a salt derived from a strong acid, i.e. one having a dissociation constant at 25 DEG  C. of above 1.70 x 10-5, and a weak base, i.e. one having a dissociation constant at 25 DEG  C. of below 1.5 x 10-5.  The salt may be ammonium iodide, chloride or sulphate.  The lactam is extracted with an organic solvent, e.g. benzene or chloroform, and further lactone and ammonia is added to the aqueous residue and the mixture then reheated to obtain more lactam.
Patent GB-1094731-A (GB)
Title: Information storage apparatus
IPC: G11C13/06
Filed: 1964-12-18
Abstract: 1,094,731. Magnetic data storage apparatus. WESTERN ELECTRIC CO. Inc. Dec. 18, 1964 [Dec. 18, 1963], No. 51513/64. Heading H3B. Data is stored magnetically in a crystal of ferrimagnetic material such as a rare earth iron garnet, including two crystal sublattices having oppositely directed remanent magnetizations which become equal and opposite at a temperature known as the compensation temperature. The material also has a higher coercivity at the compensation temperature than at adjacent higher or lower temperatures. In Fig. 1, a crystal of gadolinium iron garnet, grooved or otherwise divided into a plurality of storage segments 3, and mounted on a glass plate 4, is cooled to 14‹ C. To write information in a selected segment radiation from source 13 is directed by a deflection apparatus on to the selected segment, so raising its temperature. A magnetic field, whose polarity is indicative of the information to be stored, is applied by means of single coil 8, or Helmholtz coils (not shown). The field strength is sufficient to switch the remanent magnetization of the sublattices in the selected segment but not elsewhere. When the segment has cooled the process can be repeated for other segments. At the compensation temperature the stored information produces no external field. The information is read out by directing polarized light through the crystal, the plane of polarization being rotated in one direction or the other depending on the stored data. Light for readout may be obtained from source 13, operated at a lower power level to prevent erasure of the data. Alternatively separate sources may be directed through the same deflection apparatus by means of a half-silvered mirror. The unused portions of the writing and reading beams may be used for operating a second similar store. The store may include a plurality of crystals 135 (Fig. 6) operated by means of a single source 123 and deflection apparatus 125. A pair of partially-silvered mirrors 127, 128 are silvered in zones to split the incident beam into as many equal portions as there are storage planes. If the crystal employed for the store has a compensation temperature above room temperature it is placed in an oven (Fig. 5, not shown). Rare earth iron garnets suitable for use in a store range from erbium iron garnet with a compensation temperature of - 189‹ C. to gadolinium iron garnet containing two aluminium ions per 98 iron ions (50‹ C.), and include holmium, dysprosium and terbium iron garnets, as well as gadolinium iron garnet containing one ion of aluminium to 99 ions of iron.
Patent GB-1029519-A (GB)
Title: Improvements in and relating to gear pumps and motors
IPC: F04C15/00
Filed: 1964-12-18
Abstract: 1,029,519. Gear pumps and motors. NEW YORK AIR BRAKE CO. Dec. 18, 1964 [Feb. 12, 1964], No. 51534/64. Heading F1F. A gear pump or motor comprising separable casing sections 11, 12, 13, Fig. 1 (not shown), defining a working chamber 19, housing on parallel shafts 23, 24 gears 26, 27 whose side faces engage complementary side faces 22, 29 on the casing sections 11, 13 respectively, includes wholly within the casing section 13 a  chamber 28 spaced inwardly from the side face 29 to provide a thin deformable section 31. The chamber 28 is formed with an arm 28a, Fig. 3 (not shown), located between the gears and communicating through a bore 32 with the high pressure side of the pump or motor and a pair of arms 28b flaring outwardly in the direction of the low pressure side of the pump or motor. High pressure fluid within the chamber in opposition to the low pressure fluid outside the chamber deforms the section 31 so that the side face 29 is in sealing engagement with the adjacent side faces of the gears. Instead of the chamber 28 being formed in the casing section 13 it may be formed in the casing section 11 or in both. The arms 28b may instead be on the high pressure side and the arm 28a on the low pressure side.
Patent GB-1126484-A (GB)
Title: Screening apparatus having an electrically heated screen
Inventor: PEASE NEVILLE
IPC: B07B1/62
Filed: 1964-12-18
Abstract: 1,126,484. Screening apparatus. COAL INDUSTRY (PATENTS) Ltd. 4 March, 1966 [18 Dec., 1964], No. 51578/64. Heading B2H. A screening apparatus comprises an electrically heatable screen supported on, and insulated from, a frame and electrically insulated first and second clamping means mounted on the frame and gripping two opposite edge portions of the screen, the first means including a spring arranged to tension the screen, the force of the spring acting in the medial plane of the corresponding marginal portion of the screen. The frame is made up of angle girder side rails (3), end rails (4) mid support beam (6) and transverse beams (7). Four screens (17) are arranged side by side longitudinally and transversely of the frame and are insulated therefrom by moulded rubber angle strips 8A and moulded rubber strips 44, Fig. 1. One transverse end 17A of each screen 17, Fig. 6, is gripped between clamping plates 24 held by nuts 25 on studs 23 provided on an angled plate unit 19 secured by bolts 20 to an angled plate unit 12 which extends between each side rail 3 and the beam 6. The plate unit 19 and the bolts 20 are insulated from the plate unit 12 by insulating strips 21 and bushes 22 respectively. The other end 26 of the screen 17, Fig. 5, is gripped between plates 27, 28 which are drawn towards each other by bolts 29 and are anchored to the frame rail 4 by a combined mesh anchoring and tensioning arrangement 32. The latter includes a metal strip 33 carrying three L-shaped brackets 34 fitted between tongues 30 which project from a plate 28A, Fig. I, and provide connections for copper bus-bars (31), Fig. 4 (not shown). The plates 27, 28 and 28A are engaged between the strip 33 and the arms 36 of the brackets 34, the arms 35 of which are secured to the rail 4. Strips 37 of insulating material are interposed between the strip 33, the arms 35 and the rail 4. Each arm 35 is apertured to receive the screwthreaded shank 38 of a clamping device which comprises a forked head 39 connected to the plates 27, 28 and which is held on the arm 35 by a nut 41 which bears on the arm through a compression spring 42 and a spacer 43. Tightening of the nut 41 causes the forked head 39 to be drawn further into the gap between the bracket arm 36 and the strip 33 thereby tensioning the screen mesh 17.
Patent GB-1489419-A (GB)
Title: Polymerisable esters
IPC: C08F2/48
Filed: 1974-11-30
Abstract: 1489419 Unsaturated polyesters CIBAGEIGY AG 31 Oct 1975 [30 Nov 1974] 51972/74 Heading C3R [Also in Division G2] Polyesters which are soluble in an aqueous solution of a base before exposure to actinic radiation but which, on exposure to actinic radiation, polymerize and become insoluble in such an aqueous solution are derived from an at least dianhydride of a polycarboxylic acid and an alcohol component containing a group of the formula where R is a substituent, a is 0 or 1 to 4, b is 0 or 1 to 3, c is 0 or 1 to 5 and R<SP>1</SP> is a chain of carbon atoms containing a group of the formula where R<SP>2</SP> and R<SP>3</SP> are hydrogen, C 1-4  alkyl, phenyl or together are a C 2-4  polymethylene chain; R<SP>4</SP> and R<SP>5</SP> are hydrogen, C 1-4  alkyl or phenyl, Y is O or S and d and e are 0, 1 or 2, provided both are not zero. The examples describe the reaction of benzophenone-3,3<SP>1</SP>,4,4<SP>1</SP>- tetracarboxylic acid dianhydride or pyromellitic acid dianhydride with an alcohol component prepared by reacting (a) 1,5-bis-(4- hydroxyphenyl)penta - 1,4 - dien - 3 - one with epichlorohydrin, glycidyl sorbate, glycidyl methacrylate or allyl glycidyl ether, (b) 1- phenyl - 3 - (4 - hydroxyphenyl)prop - 1 - en- 3 - one with N,N<SP>1</SP> - diglycidyl - 5,5 - dimethylhydantoin or the diglycidyl ether of 2,2-bis-(4- hydroxyphenyl)propane, (c) the diglycidyl ether of 1,5 - bis - (4 - hydroxyphenyl)penta- 1,4 - dien - 3 - one and 3 - (2 - furyl)acrylic acid, (d) 1,3 - bis - (4 - hydroxyphenyl)prop - 1- en - 3 - one and epichlorohydrin, (e) 1 - (2- furyl) - 3 - (4 - hydroxyphenyl)prop - 1 - en - 3- one and the diglycidyl ether of 2,2-bis-(4- hydroxyphenyl)propane or (f) 1,4 - bis - (4- hydroxybenzoylvinyl)benzene and epichlorohydrin.
Patent GB-1528480-A (GB)
Title: Method and apparatus for bending pipes
IPC: B21D7/06
Filed: 1975-12-19
Abstract: 1528480 Bending pipes TAG VERTRIEB AG 19 Dec 1975 [20 Dec 1974] 52082/75 Heading B5A [Also in Division B3] A bend in a plastics pipe or other tubular body, e.g. to avoid an obstacle in a pipe-run is produced by displacing all parts of the portion to be bent in directions perpendicular to the pipe length, whereby the elemental cross-sections of the pipe retain their orientation. Apparatus for performing the method is shown in Fig. 6, comprising supports D, F through which the pipe passes, having bevelled faces 34, 36 by which a descending die G moves the supports apart as it forms the pipe. The die has grooves H which are semi-circular along section Y-Y. Elemental cross-sections S 1 , S 2 , S 3  are thus displaced as shown schematically in Fig. 2, giving rise to a bend of the kind shown in Fig. 4, of angle α and very small inside radius r, the displaced tube portions having elliptical crosssections 14. The die groove H may be of semicircular section along section X-X, in order to deform the pipe-portions to circular section simultaneously with the bend formation. The cross-section of die G need not be the triangle shown, but may have a flat, concave, or convex apex, and may have part or all of each side concave or convex.
Patent GB-1247299-A (GB)
Title: Improvements in or relating to electric discharge display tubes
IPC: H01J17/49
Filed: 1969-10-24
Abstract: 1,247,299. Discharge tubes. ISE ELECTRONICS CORP. 24 Oct., 1969 [19 Nov., 1968], No. 52171/69. Heading H1D. A display tube contains an internal display electrode structure 7 connected to terminals 6 extending through the envelope which comprises a metal cap 1 provided with a transparent window 2 and a flange 4 seated to a metal base 5, the terminals 6 being sealed in apertures in the base 5 by insulating material 9, e.g. glass or ceramic. The base 5 is provided with an exhaust opening in which a glass or metal pipe may be sealed (Figs. 3 and 4, not shown). The cap 1 may be sealed to the base 5 by arc or spot-welding or by soldering. The display may be fluorescent, in which case the metal envelope is grounded to act as an electrostatic shield. The envelope is either evacuated or filled with an inert gas. The electrode structure 7 may be as described in Specification 1,245,309.
Patent GB-1292283-A (GB)
Title: Track-tensioning means for track-laying vehicles
IPC: B62D55/30
Filed: 1969-10-24
Abstract: 1292283 Endless-track tensioning devices ORENSTEIN & KOPPEL AG 24 Oct 1969 [13 Nov 1968] 52232/69 Heading B7H  A tensioning device for the track of an endlesstrack vehicle comprises a track guide wheel 3 loaded by a piston-and-cylinder assembly 12, 7 which communicates with an hydraulic accumulator 14, coil springs 19, 19a arranged to become operative after a predetermined deflection of the piston into the cylinder to resist further movement of the wheel 3, and a pressurelimiting valve 32 for limiting the pressure in the accumulator 14. A slide member 4 carrying the wheel 3 has a plunger 16 abutting the piston 12. The coil-springs 19, 19a are disposed around the plunger 16 and bear against an abutment 20 which is displaceably mounted on the plunger and engages a fixed stop member 23 after a predetermined movement of the plunger. The cylinder 7 is connected through a pipe 31 to pressure-limiting valve 32 which discharges into a reservoir 34. A pump 24 is connected to the pipe 31 through a charging valve 30 and a regulating valve assembly 28 comprising a pressure-limiting valve 26 and a non-return valve 27. In operation, an increase in track tension moves the plunger 16 against increasing pressure as fluid is displaced into the accumulator 14 until the pressure-limiting valve 32 opens, whereupon the movement is resisted by an increased but constant pressure until the abutment 20 engages the stop member 23. Further deflection is permitted only against the resistance of the springs 19, 19a.
Patent GB-1455311-A (GB)
Title: Method and apparatus for aerobic fermentation
IPC: B01F13/00
Filed: 1973-11-12
Abstract: 1455311 Aerating liquids ASAHI-KASEI KOGYO KK and ISHIKAWAJIMA HARIMA JUKOGYO KK 12 Nov 1973 [13 Nov 1972] 52438/73 Heading B1C [Also in Division C6]  An oxygen-containing gas is passed into a fermentation column 1, at a superficial gas velocity of at least 120 m/hr causing a circulation flow of medium, and the ascending bubbles of air are broken up by means of a rotatable vane 3, which vane offers insufficient resistance to significantly disturb the basic circulation flaw. The vane may have a plurality of horizintally disposed blades and each blade may have a number of wires projecting therefrom, or may be of gauze or wire mesh. The temperature of the medium may be controlled by circulation through a heat exchanger 6, the cooled medium being injected as a foam-destroying spray 2.
Patent GB-1325177-A (GB)
Title: Lighting unit structure and arrangement comprising a plurality of such structures
IPC: F21V33/00
Filed: 1970-11-05
Abstract: 1325177 Combined lighting and ventilating units; ventilators WILSON LIGHTING Ltd 5 Nov 1970 [6 Nov 1969] 52749/70 Headings F4R and F4V In an arrangement of combined lighting fitting and ventilation units each unit comprises a rigid lamp supporting member 14 interconnecting two end walls, each end wall including an inner wall portion 21 with outwardly projecting side flanges 23 adapted to be secured in an air tight manner to similar outwardly projecting side flanges of a similar lighting and ventilating unit to form an air chamber between them fed with conditioned air via inlet 34. The inner wall portions are inclined so that they approach one another at the bottom of the fitting to form air outlet slots 40 from which the air may issue to the space below the units. The unit may be supported by girders 35 suspended by tie members from a flooring support deck, spacing members 37 being used to determine the depth of the slots 40. These spacing members may be of heat fusible material so that in event of fire they melt and the lighting unit drops to seal off the slots 40. Heat insulation panels 41 are provided surrounding a fluorescent lamp and its transparent cover 15, the lower faces of these panels being reflective to reflect light down into the space below the unit.