baber/WOPTO huggingface dataset:
Patent GB-962569-A (GB)
Title: Method of producing vascular prostheses from synthetic fibrous materials
Inventor: BARTHOLD HELMUT
IPC: A61F2/06
Filed: 1960-11-24
Abstract: A vascular prosthesis comprising a knitted fibrous thermoplastic tube is helically crimped by drawing the tube over a helical former having spaced convolutions, constraining the tube into the spaces between the convolutions and heat setting and stress relieving the crimps. The knitted tube is drawn on to a tension or compression spring which is then extended or compressed to impart corrugations to the tube. The corrugations are then fixed by treating with dry heat, saturated steam or hot water. The tube may be drawn on to a spring with a solid core, a thread of synthetic material then being wound on the tube between the spring coils, the diameter of the core thus determining the depth of the corrugations formed.  The tube may be treated to fix the corrugations before withdrawal from the spring or after transferring it to a solid rod and adjusting the corrugations to desired width and height.ALSO:A knitted fibrous thermoplastic tube is helically crimped by drawing it over a helical former having spaced convolutions, constraining the tube into the spaces between the convolutions and heat setting and stress relieving the tube.  The knitted tube is drawn on to a tension or compression spring which is then extended or compressed to impart corrugations to the tube.  The corrugations are fixed by treating with dry heat, saturated steam or hot water.  The tube may be drawn on to a spring with a solid core, a thread of synthetic material then being wound on the tube between the spring coils, the diameter of the core thus determining the depth of the corrugations formed.  The tube may be treated to fix the corrugations before withdrawal from the spring or after transfering it to a solid rod and adjusting the corrugations to desired width and height.  The tube may be made of polyester fibrous material and may be knitted partly from fully or highly stretched threads and partly from slightly stretched or unstretched threads.  Two threads may be knitted together, one thread being fully or highly stretched and the other being slightly stretched or unstretched.
Patent GB-1415270-A (GB)
Title: Electroplating gold-cobalt alloy and electrical switching element plated therewith
IPC: H01H1/04
Filed: 1974-09-18
Abstract: 1415270 Gold-cobalt alloy; electro-plating thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Sept 1974 [21 Sept 1973] 40687/74 Headings C7A and C7B [Also in Division H1] Reed switch contacts of a magnetic material, e.g. Ni-Fe, enclosed in a hermetically sealed envelope have their contact portions coated with an Au-Co alloy containing 0.5-1.5 wt per cent C and 1-6 wt per cent Co. Electro-plating from a bath comprising in g/l; Au 2.5-7.5 (as KAu(CN)2), Co 4-6 (as Co citrate), citric acid 20-80 (as Na citrate) and optionally H 3 BO 3  10-25 and having pH 3.6-4.5 is used to provide the coating. A Co content of 1-4% is optional. Plating at 55C using a c.d. of 1.5 A/dm<SP>2</SP> is specified.
Patent GB-1215029-A (GB)
Title: Improvements in or relating to apparatus for the heat treatment of continuously running yarns, threads or like continuous strands
IPC: D02J13/00
Filed: 1968-08-26
Abstract: 1,215,029. Finishing yams. HEBERLEIN & CO. A.G. 26 Aug., 1968 [31 Aug., 1967], No. 40753/68. Heading D1F. Apparatus for heat-treating running yarns, e.g. setting twist in a twist- (or false-twist) crimping process, comprises an insulated, elongate, contact body 1 in which are embedded separate elements 2, 3, or rods each heated by an independently controllable electric resistance coil located therewithin to provide preheating and the main heating respectively for the yarn (s) travelling along (a) groove(s) 6 in the body surface. In order to ensure a temperature drop between the preheating and heating zones without interrupting the yarn travel, elements 2, 3, are separated by a thermal resistance as may be provided by one or more out-out portions, as at 7, of rectangular or circular cross-section extending across the body; by a core or plug (not shown) of material, e.g. foamed glass, ceramic, asbestos, of low thermal conductivity relative to that of the body; by reducing the heated length of the elements 2, 3, at the opposite ends thereof to form an unheated zone; by reducing the heat-conducting cross-section of the body. Tapered projections, as at 8, comprise bores for the reception of temperature measuring probes.
Patent GB-1298406-A (GB)
Title: Utilizing thiazo derivatives as a flavour
Inventor: KATZ IRA
IPC: A23L27/20
Filed: 1970-08-25
Abstract: 1298406 Flavouring agent INTERNATIONAL FLAVORS & FRAGRANCES INC 25 Aug 1970 [14 Oct 1969] 40834/70 Heading A2B [Also in Division C2] Food (e.g. meat, vegetables, soups, sauces, bakery products) is flavoured by incorporating therein a thiazo derivative having the general formula: wherein one of R 1  and R., is a primary, secondary or tertiary hydroxyalkyl or acyloxyalkyl and the other is hydrogen 'or alkyl and the dashed lines represent single or non-adjacent double bonds. The thiazo derivative may be a thiazole, thiazoline or thiazolidine derivative or a thiazolonium, thiazolinonium or thiazolidonium compound. The thiazo derivative may be mixed with other substances prior to use, e.g. water, ethanol, propylene glycol, glycerol, oils, fats, thickeners, condiments, spices, colours, antioxidants, proteins, amino acids and other flavours, e.g. sugar, glutamic acid and salts thereof and nucleotides. The thiazo derivative may be encapsulated.
Patent GB-1211752-A (GB)
Title: Improvements in or relating to resin-bonded articles
IPC: B24D3/34
Filed: 1968-08-27
Abstract: 1,211,752. Surfacing. ENGLEHARD HANOVIA Inc. 27 Aug., 1968 [29 Aug., 1967], No. 40973/68. Heading B3D. [Also in Division C4] Hard materials are surfaced with a resinbonded abrasive article comprising a substantially homogeneous mixture of abrasive particles of particle size of 5-200 microns and a particulate filler bonded by resinous material, the article having agglomerates of additional abrasive particles dispersed at random therethrough, the additional abrasive particles having a particle size of less than 5 microns. In the Figure glass sheets 10 suitably mounted in a conventional conveying means, e.g. embedded in plaster of Paris, are passed through the successive grinding and polishing stages I, II, III. Grinding wheels 12-15 remove progressively decreasing predetermined amounts of surface material. The sheets then pass to a satellite spider wheel 16 comprising diamond particles in a metal bond and then to a similar wheel 17 of abrasive articles of the invention. The sheets then pass to conventional garnet or iron oxide polishing stations 19-21.
Patent GB-1192592-A (GB)
Title: Xerographic Plate and Process
IPC: G03G5/043
Filed: 1967-09-08
Abstract: 1,192,592. Xerographic plate. RANK XEROX Ltd. 8 Sept., 1967 [12 Sept., 1966], No. 41087/67. Heading H1K. A xerographic plate comprises a conductive substrate having thereon a layer of a phthalocyanine dispersed in an insulating binder said layer being overlaid with selenium. The substrate may be Al, Cu, Ni, brass, stainless steel, Zn, glass or plastics coated with Al, SnO or In 2 O 3  or paper rendered conductive by the inclusion of chemicals or water. The overcoat of selenium may comprise S+Se or Se+Te alloys, CdSe, CdSe/S, arsenic selenide, tellurium selenide or Se doped with halogen. A list of suitable phthalocyanines are given but those preferred are the X and alpha metalfree forms. The binder may be urea, melaminealdehyde, epoxy, epoxy-phenolic, polyimide, polycarbonate or silicone resins, polyesters or polyvinylcarbazoles. The selenium overlayer may be deposited by vacuum evaporation on to the binder layer which may be partially or wholly cured before deposition of the selenium layer.
Patent GB-1094897-A (GB)
Title: Improvements in and relating to refrigerated chambers
Inventor: COCK JOHN CHARLES EDWIN LOW
IPC: F25D13/06
Filed: 1963-10-18
Abstract: 1,094,897. Refrigerators; defrosting. J. & E. HALL Ltd. Oct. 16, 1964 [Oct. 18, 1963; Oct. 23, 1963], Nos. 41206/63 and 41862/63. Heading F4H. A refrigerated chamber comprises an aircooler 4 mounted in an open-topped casing 6, an inclined drip tray 12 disposed beneath the cooler 4 and having an opening 14 therein, and a closure 17a for said opening, the upper edge 17b of the latter being above the lowest point of the tray and forming a seat for closure 17a. The cooler is defrosted by liquid from spray means 22 mounted on a part-spherical valve member 16a which, together with closure 17a, is mounted on an operating rod 18 and can close an opening 16b in the top of casing 6. During defrosting, both openings are closed and liquid is collected in tray 12 for discharge through pipe 23. Alternatively, heating means may be provided for defrosting the cooler, in which case closure 17a is shielded from the defrost water by deflectors 8. Refrigerated air is discharged by a fan 5 into a chamber containing trolleys for frozen articles and an air-permeable support extending between an inlet in one chamber wall and an outlet in the opposite wall (Figs. 1 and 2, not shown).
Patent GB-1116689-A (GB)
Title: Apparatus for deriving useful energy from sea waves
IPC: F03B13/18
Filed: 1965-09-28
Abstract: 1,116,689. Converting reciprocating motion into rotary motion; ratchet gearing. D. K. MONNTANOS. 28 Sept., 1965 [30 Sept., 1964], No. 41211/65. Heading F2Q. [Also in Division F1] In an apparatus for deriving useful energy from sea waves (see Division F1), a chain, belt or other flexible strip member, e.g. rack 63, Fig. 5, connected at its ends to a chain, is reciprocated to oscillate a pair of sprockets 56 57 to drive the shafts 49, 51 in opposite directions via associated pawls 58, 59, the sprockets freewheeling during the respective non-driving stroke of the rack. The shafts are connected together by gear-wheels 53, 54 so that either shaft is driven in its usual direction when its sprocket is freewheeling, by the other shaft, one of the shafts being connected to a useful load. The shafts may carry a number of pairs of sprockets. In an alternative embodiment, Figs. 2 and 3 (not shown), the sprockets are of annular form and have ratchet teeth on their radially inner surfaces, the teeth being engaged by pawls carried by radial extensions of the shafts.
Patent GB-955013-A (GB)
Title: Improvements in and relating to Composite Jet Engines
Inventor: EICHHOLTZ KONRAD AUGUST WERNER
IPC: F02K3/12
Filed: 1961-11-17
Abstract: 955,013. Jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 17, 1961 [Nov. 18, 1960], No. 41285/61. Heading F1J. A composite jet engine comprises at least two channels in one of which is disposed a gas turbine driven air compressor, air from the compressor being passed into the second channel where it is utilised in a combustion chamber which supplies gases to a turbine which drives an air compressor disposed in that channel, means being provided for heating the air discharged from the second air compressor. In the embodiment shown, the engine comprises two channels 1, 2 each having a propulsion nozzle of convergent-divergent form and of variable area. The two channels have a common air intake also of convergent-divergent form and of variable area. A gas turbine engine is disposed in the channel 1 and comprises an air compressor 11, combustion equipment 13, a turbine 10 driving the compressor 11 and a separate power turbine 9 which drives an air compressor 7 disposed upstream of the engine. The exhaust gases from the engine discharge through the nozzle 3. Air from the compressor 7 passes through a duct 14 to a combustion chamber 16 disposed in the second channel, 2, gases from the combustion chamber discharging to the turbine 17 which drives an air compressor 19 disposed in the annular passage 20 around the combustion chamber and turbine assembly 16, 17. Air from the compressor 19 may be heated in the passage 20 by means of a burner device 27. The gases discharged from the turbine 17 together with air from the compressor 19 pass through the propulsion nozzle 4. The gases and air may be reheated in the duct 21 by means of a burner device 22. The stator blades 25, 26 of the air compressor 19 may be angularly adjustable; also, a pivoted flap 6 may be provided to control the air flow into the two channels. The duct 2 may be operated as a ram jet unit when the air compressor 19 is inoperative the ram air being heated in the combustion equipment 20, 27.
Patent GB-1044380-A (GB)
Title: Stabilised methyl chloroform
Inventor: RATHBONE PETER
IPC: C07C17/42
Filed: 1962-11-02
Abstract: Methyl chloroform is stabilized against metal induced decomposition by the addition of (a) a 1:3-dioxolane and (b) a nitroalkane.  (a), which suitably has a boiling point not above 110 DEG  C., is generally present in an amount of 0.5-6%, preferably 2-4%, by weight of the methyl chloroform; 1:3-dioxolane and 2-methyl-1:3-dioxolane are particularly favoured. (b), which suitably has a boiling point not above 130 DEG  C., is usually present in an amount of 0.05-5% preferably 0.2-2%, by weight; nitromethane is preferred.  Reference has been directed by the Comptroller to Specification 912,118.
Patent GB-1028057-A (GB)
Title: Missile holding device
IPC: F41G7/30
Filed: 1964-10-13
Abstract: 1,028,057. Ammunition packing; rocket launchers. BOFORS A.B. Oct. 13, 1964 [Oct. 16, 1963], No. 41768/64. Headings F3A and F3C. In a holding device for releasably securing a missile 1 in a box 2, serving both for transport and as a launching barrel, links 8, 9 pivoted at 13, 14 to a bracket 5, attached to the side walls of the box 2 by flanges 6, are connected together at the rear end by a flexible strip 10 and, at the front end, are provided with studs 18, 17 which engage recesses 19, 20 at the rear end 21 of the missile whereby, after removal of rear box cover 4 and starting of the rocket motor, the combustion gases flowing out backwardly deflect the strip 10 to pull the rear end of links 8, 9 together and thereby withdraw studs 17, 18 to release the missile. The hinged link and strip arrangement 8, 9, 10 gives the missile a certain freedom of vertical movement within the box 2 and transverse freedom is provided by the elongated pivots 13, 14.
Patent GB-418051-A (GB)
Abstract: 418,051. Actuation of switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Green, A. J.; 2, Park Terrace, West Caldwell, New Jersey, U.S.A.) Nov, 20, 1933, No. 32345. Convention date, Nov. 19, 1932. [Class 38 (v).] An automatic pressure regulator having an electric switch operated by pressure-responsive mechanism comprises a casing having sides with oppositelydisposed apertures therein, a member carrying contacts which is adapted to be inserted in the apertures, a movable switch arm cooperating therewith and operated through snap action mechanism from the pressure-responsive member, the movable switch elements comprising contact-carrying arms held within hollow portions of the insulating casing of the movable contact member so that they can engage the fixed contacts with a wiping action. As shown in the Figure a flexible diaphragm 15 is mounted in an aperture 12 of one side 11 of the casing, a member 41 resting on the side of the diaphragm opposite to the pressure pipe, the member 41 having a pin 411 engaging a cupshaped member 42 formed with arms 42 secured by pivots 43 to a pivoted arm 23. The arm 23 is pivoted at 21 to a V-shaped bracket 18 carried by the casing side 11 within which is a spring 46 opposing the movements of the diaphragm. One end of the spring engages the inside of the cup-shaped member 42 while the other end engages an adjustable nut 45 on a screw the head 44 of which is held in a hole in the cross-bar of the bracket 18. The free-end of the lever 23 is pivotally connected by a rod 26 to one end of a dead-centre spring 27 the other end of which is connected to a pivoted contactcarrying frame pivotally secured in the sides 10 of the casing. The frame 28 carries contact fingers 31, 37 adapted to engage contacts 38 clamped on a fixed insulating bar 39 which is also secured in apertures formed in the casing sides 10. The contacts are opened rapidly by the dead-centre spring after the lever 23 moves the spring 27 over a line of centres owing to increase of pressure on the diaphragm. In the switch-opening movement an arm attached to the movable contact carrier engages an external lever so depressing the plunger of a compressor unloader valve mounted outside the switch casing. The valve and switch are alternatively operable manually by depression of a spring- retracted plunger.
Patent GB-1447069-A (GB)
Title: Apparatus for cooking cereals beans and the like
IPC: A47J27/62
Filed: 1973-09-05
Abstract: 1447069 Apparatus for cooking rice CH'UNHSIUNG CHIANG and CHENG-WEI LIN 5 Sept 1973 41818/73 Heading A2Q [Also in Division A4] A cooking apparatus for boiling grain such as rice comprises an electrically heated cooker 80 having inner and outer kettles (84), (88) respectively, a washing basin 40 positioned on top of the cooker including an agitator 14 and a drain pin, 45 controlling an outlet 41 of the basin, means for supplying water and rice to the basin, and an electrically powered driving mechanism with associated electrical switching means to effect operations of feeding water and rice to the basin, agitation and cooking rice in the inner kettle. An electric motor 10 is energized via a contact (91) controlled by a time (90) to rotate the agitator 14, a worm gear 20 and a cam 70. A circular projection 21 extending only partly along the circumference on one face of the gear 20 actuates a microswitch 22 thereby energizing a solenoid 31 which allows water to flow through a pipe 37 into a reservoir 30 containing a pipe 32, the latter being provided with a hole 321. The pipe 32 can be moved up and down along a pipe 35 means of a rake 322 and a pinion 34 so that the amount of water flowing into the basin can be varied. A triangular plate (23) mounted on the other face of the worm gear 20 actuates a microswitch (24) which in turn deenergizes a solenoid 52 thereby causing a gate 53 in a hopper 50 to close thus controlling the amount of rice falling into the basin. The excess quantity of water in the basin is discharged through a hole (601) and a drain pipe 60. As the projection 21 loses contact with the switch 22, a follower 43 on top of a plunger 42 moves up in a notch (71) in the cam 70 thereby pulling a plug 45 upwardly so that the water and the rice in the basin fall into the inner kettle. As the plunger 42 is pressed down by the cam 70, a projection 73 on the cam presses a microswitch 74 to stop the motor 10 and energize an electric heater in the cooker 80. A thermostat in the cooker switches of the heater. The associated electrical circuitry resets itself once the whole cycle is over. There is a provision for supplying water from the reservoir 30 to the outer kettle (88).
Patent GB-963362-A (GB)
Title: Improvements in adhesive tapes
IPC: C09J7/26
Filed: 1961-07-10
Abstract: 963,362. Making perforated plastic films. KENDALL CO. July 10, 1961 [Aug. 8, 1960], No. 41844/63. Divided out of 963,361. Heading B5A. [Also in Division B2] A method of perforating an adhesive tape 65 consisting of a backing constituted by an imperforate thermoplastic film 41 having on one side a coating 49 of pressure-sensitive adhesive and faced with a releasable facing sheet 67, comprises passing the film and facing sheet through the nip between a heated knurled roll 61 and a cooler smooth roll 60 with the facing sheet presented to the knurled roll. As shown in Fig. 2, a back-up sheet 66 is passed through the nip in contact with the surface of the film 41 facing the smooth roll 60, each boss 62 of roll 61 pressing facing sheet 67 into adhesive layer 49 which flows laterally and radially from the area of compression to form a perforation in layer 49. As shown in Fig. 3, continued application of pressure results in similar perforation of film 41 with the formation of annular bead 43. Neither facing sheet nor backup sheet is perforated. The film may be of polyvinyl chloride plasticized with a mixture of a sebacic acid polyester and epoxidized soybean; the releasable facing sheet may be of " Cellophane " (Registered Trade Mark); the back-up sheet may be of high-density polyethylene; and the adhesive may contain pale crepe rubber, tackifier resin, e.g. a blend of a glycerol ester of hydrogenated rosin, dimerized abietic acid and pentaerythritol ester of hydrogenated rosin, and age-resistors, e.g. a mixture of polymerized trimethyl dihydroquinoline, diorthotolyl ethylenediamine, and a condensation product of acetone and aniline.
Patent GB-1103652-A (GB)
Title: Method of drying tanned leathers and skins
IPC: C14B1/26
Filed: 1966-09-20
Abstract: In freeze-drying tanned leather, e.g. a tanned skin, the leather is stretched over a first polished surface and covered with a fluid-tight cover, the pressure of air in the space between the surface and cover is reduced and the surface is cooled to a temperature below 0 DEG C., e.g. to -25 DEG C., to freeze the water in the leather.  The pressure in said space is then brought to normal atmospheric pressure, the leather is uncovered and the resulting stiff sheet of frozen leather is removed from the surface and transferred on to a second polished surface, at such a speed that the frozen water in the leather has no time to melt.  The pressure of the air in the space between said second surface and cover is then reduced and the second surface is heated, e.g. to a temperature between 65 and 90 DEG C., to sublime said frozen water. The pressure in the second space is brought to normal atmospheric pressure and the dried leather is uncovered and removed from the second surface. Preferably, each cover has, on its inner surface, a flexible cushion, which is permeable to air and water-vapour. The pressure in said spaces may be reduced by applying suction through the cushions. Vacuum-drying apparatus disclosed in French Specification 1,460,696 may be used.
Patent GB-921882-A (GB)
Title: Microsyringe for gas-chromatography
IPC: G01N30/18
Filed: 1960-12-07
Abstract: 921,882. Delivering measured quantities of liquid; sampling liquids. LABORATORI RIUNITI STUDI E. RICERCHE S.p.A. Dec. 7, 1960 [Dec. 16, 1959], No. 42107/60. Class 106(5). An apparatus for taking samples and supplying them to a gas chromatography column comprises a hypodermic pipe D pointed at both ends and having lateral holes near the ends and the holes are sealable by an elastic cap a on a slidable member A and by an elastic cap M on a hollow piston rod C which is slidable in a cylinder G. The pipe D is fixed in a removable member E. In use, the member A is moved forward until the cap a seals the lateral hole in the outer end of the pipe in position 4 and the piston rod is pushed in to compress the air in the chamber B and so that the inner end of the pipe moves through the cap M into the hollow rod C. The rod is then filled with the liquid to be sampled and the member A is moved back to original position so that the lateral hole at the outer end of the pipe is unsealed. A few drops are allowed to flow out so that the filling of the pipe is ensured and then the member A is moved back to position 4 to re-seal the outer lateral hole. On insertion of the pipe into the rubber capsule of the chromatography column the member A is moved back and after the pipe has penetrated the capsule, the rod C is moved back so that the cap M, in position 3, unseals the lateral hole in the inner end of the pipe and its contents are expelled by the compressed air. The contents may alternatively be expelled by a gas introduced through a valve. If the liquid has a low boiling point, the pipe is filled from a bottle held upside down, the cap a being in initial position and the cap M in position 1. Once the needle has penetrated the sealing capsule of the bottle and has filled, the rod C is retracted until the cap M is in position 2 and member A is moved to position 4, so that both ends of the pipe are sealed. Pins in bayonet slots fix the positions of the rod C and member A.