baber/WOPTO huggingface dataset:
Patent GB-1345279-A (GB)
Title: Transparent internal or external combustion engine
IPC: F02B65/00
Filed: 1971-08-20
Abstract: 1345279 Transparent cylinder I.C. engine MEGATECH CORP 20 Aug 1971 [3 Sept 1970] 39175/71 Heading F1B [Also in Division F2] An internal or external combustion engine comprises a piston 34 surrounded by a cylinder 22 of transparent material, a sealing means being provided between the piston and cylinder to give dry lubrication, the engine not having any liquid lubrication inside the cylinder. The piston may be made of tetrafluorethylene or PTFE and provided with a flap 82 to ensure said dry lubrication and sealing. Alternatively it may be of metal with piston rings (121) (122), Fig. 5 (not shown) of tetrafluoroethylene. Cylinder 22 may be of glass, preferably coated with plastics on its outside for safety and may be surrounded by a transparent plastics tube (105) Fig.3, (not shown). Inlet valve 46 may be opened by a cam or by the reduced pressure in combustion chamber 30 during the induction stroke, against a spring 60. The inlet and exhaust manifolds 68 and 72, the distributor and carburettor housings and parts of the crankcase may be transparent. A fly-wheel 16 of large mass enables the engine to run smoothly at low speed.
Patent GB-1407077-A (GB)
Title: Vacuum insulated carafe
IPC: A47J41/02
Filed: 1972-08-23
Abstract: 1407077 Vacuum insulated vessels ALADDIN INDUSTRIES Inc 23 Aug 1972 [8 Sept 1971] 39235/72 Heading B8T [Also in Division F4] A vacuum insulated carafe has a protective casing 2 with exterior threads 14 at its upper end for engaging inner threads at the lower end of a collar 4 integrally formed with a pouring spout 8 and a handle 6, which handle extends downwardly below the lower end of the collar in close proximity to the outer surface of the casing. An open ended vacuum insulated filler 16 is received within the casing into which filler a plastics liner 20 depends from the collar. An upwardly extending portion 24 of the collar has threaded sections 26 which are engageable with threads 32 on a cap 10 covering both the open end of the carafe and a closure 30 loosely fitting within the upper opening 28 at the collar. The cap has diametrically opposed openings 34 which when the closure is threaded on to the collar are in registration with the handle 6 and spout 8 for emptying the carafe.
Patent GB-1016723-A (GB)
Title: Piezoelectric transducers and devices using them
IPC: H03H9/13
Filed: 1962-10-18
Abstract: 1,016,723. Electromechanical delay lines. WESTERN ELECTRIC CO. Inc. Oct. 18, 1962 [Oct. 24, 1961; July 31, 1962], No. 39408/62. Heading H3U. [Also in Division H1] A piezo-electric element for an electromechanical delay line comprises a base member 10 of low-resistivity semi-conductor material having an integral thin layer 11 of semi-conductor material of different impurity content from that of the base member so that its resistivity is considerably greater, the thickness of the layer extending in the direction of the piezo-electric axis of the base member, the element being provided with electrodes 12, 16 for impressing a signal field across the layer. Suitable cubic piezo-electric semi-conductor materials are Group III-V compounds in high resistivity form which may be epitoxially grown upon substrates of low-resistivity forms of the same material or upon substrates of lowresistivity cubic Group IV elements such as germanium or silicon. Alternatively, hexagonal piezo-electric semi-conductor Group II-VI compounds may be used. In one embodiment, the block 10 is made of cubic GaAs doped with Zn, Sn, S or Se to impart a low conductivity. The deposited layer 11 may be sufficiently pure to provide the required high resistivity or doping materials for this purpose may be deposited with the layer. Alternatively, doping material may be diffused into the layer, e.g. Cu into GaAs. A vapour transfer method may be used for depositing the epitaxial layer. In an alternative method, the layer is formed by diffusing compensating materials directly into substrate, e.g. block 10 may consist of CdS doped with In or Cl and Cu may be used as a compensating material. The high and low resistivities P 1  and p 2  are defined by P1> 10po and p 2 >p 0 /10, where p 0  = 1/## (#) is the operating frequency and the permittivity of the material). The element may form the input transducer of a delay line 20, either the face of the block or the electrode 12 being secured to the face of the delay medium. The delay medium may consist of low-resistivity semiconductor material. Intermediate transducers and an output transducer may be provided in the same manner.
Patent GB-943596-A (GB)
Title: Improvements in or relating to gas cleaning apparatus
IPC: B03C3/41
Filed: 1962-10-18
Abstract: 943,596. Electrostatic precipitators. AMERICAN AIR FILTER CO. Inc. Oct. 18, 1962 [Oct. 31, 1961], No. 39515/62. Heading B2T. The discharge wires 6, in the pre-ionizing stage of an electrostatic precipitator with a collecting stage 3, are strung between tapered support arms 14 mounted on cross beams 9. The cross beams are of channel section slotted to receive the bifurcated ends of the support arms 14, the ends being forced open to fix the arms in place. The support arms 14 are made of spring tempered brass alloy.
Patent GB-901941-A (GB)
Title: Improvements in glycidyl ester copolymers
IPC: C08G59/14
Filed: 1960-11-17
Abstract: Glycidyl ester copolymer solutions are prepared by polymerizing an unsaturated glycidyl ester and a monoethylenically unsaturated monomer in solution in a monohydric or polyhydric alcohol having a viscosity not exceeding 130 centipoises at the polymerization temperature and which reacts with the copolymer and/or a cross-linking agent for the copolymer under curing conditions. Glycidyl esters specified are the acrylate, methacrylate and crotonate, diglycidyl maleate, fumarate and itaconic acids and glycidyl alkyl esters of the aforementioned dicarboxylic acids. Copolymerizable monomers specified are styrene, vinyl toluene, alpha-alkylstyrenes, alpha- and ar-halostyrenes, esters of vinyl, allyl, methallyl, ethallyl and higher alkenyl alcohols, esters of acrylic, methacrylic, fluoroacrylic, chloroacrylic, bromoacrylic, iodoacrylic, cyanoacrylic, maleic, fumaric and glutaconic acids and amides and nitriles of such acids.  Polymerization solvents specified are hexyl, capryl, 2-ethylhexyl, nonyl, lauryl, stearyl, oleyl, linoleyl and linolenyl alcohols, ethylene, propylene, dipropylene, tripropylene, triethylene, tetraethylene, polyoxyethylene and polyoxypropylene glycols, 1,5-pentanediol, glycerin, sorbitol and trimethylol propane.  Also present in the solvent may be a mono- or polyepoxide, e.g. styrene oxide, glycidol, phenyl and butyl glycidyl ethers, glycidyl acetate and benzoate and the polyepoxides made by reacting alcohols or phenols with a halohydrin.  Polymerization is accelerated by the use of heat and catalysts, e.g. benzoyl, phthalic, acetyl, lauroyl and di-tertbutyl peroxides, cumene and tertbutyl hydroperoxides, aluminium and stannic chlorides and boron trifluoride.  The resulting copolymer solutions may be formed into shaped articles without the necessity of removing solvents.  This result is achieved by the use of curing agents for epoxide resins, e.g. acids, anhydrides such as phthalic anhydride and methylene endo-cis-bicyclo(2,2,1)-5-heptene-2,3-dicarboxylic anhydride, amines, quaternary ammonium salts, amino-amides, a polyisocyanate and boron trifluoride complexes.  Specification 679,536 is referred to.
Patent GB-344980-A (GB)
Title: Drum furnace for melting metals
IPC: F27B3/00
Filed: 1929-12-31
Abstract: 344,980. Rotary furnaces. BRACKELSBERG, C., 87, Heilenbeckerstrasse, Milspe, Westphalia, Germany. Dec. 31, 1929, No. 39925. [Class 51 (ii).] A rotary furnace f for melting metals, particularly iron alloys, is divided by a low relatively narrow wall q into two intercommunicating cham. bers h, g, the former serving for the melting of the charge and the latter for mixing and superheating the molten material which flows over the wall q. The wall of the chamber h diverges conically towards the partition q and the axis of the chamber g is disposed at an angle to that of the furnace drum a. The furnace is fired by a pulverized-fuel burner i, the waste gases passing off through the fixed or rotary charging shoot k and serving to preheat the material before it enters the melting chamber h.
Patent GB-1103905-A (GB)
Title: Improvements in or relating to the production of encapsulated electrical components
IPC: H01L23/42
Filed: 1965-09-20
Abstract: 1,103,905. Semi-conductor devices; electric component assemblies. SIEMENS A.G. 20 Sept., 1965 [21 Sept., 1964], No. 39962/65. Headings H1K and H1R. The space between a semi-conductor or other circuit element and the walls of a housing is filled with a thermoplastic or cold or thermosetting resin in liquid form which is subsequently hardened in situ. The resin which must be capable of being hardened without substantial change of volume contains a filler acting as a getter or water vapour. The housing may be of glass, metal or synthetic resin and the element a diode or germanium mesa transistor. Suitable resins which may be poured or sprayed into the housing are phenol-formaldehyde, polyvinyl silicone, and epoxy resins, and polystyrene. Oxides of calcium, boron and barium, and zeolites may be used as water getters and alumina and magnesia may also be incorporated in the resin to improve heat dissipation. The fillers are preferably in the form of particles 0À1-100Á across and may amount to 400% by weight of the resin. They may be concentrated in certain parts of the housing by settling or centrifuging.
Patent GB-1086789-A (GB)
Title: Film feeding device
IPC: B65B41/12
Filed: 1966-09-07
Abstract: 1,086,789. Wrapping-machines. HERCULES Inc. Sept. 7, 1966 [Sept. 7, 1965], No. 40036/66. Heading B8C. Packages P are carried singly from a gravity feed hopper 18 by lugs 2, on conveyer chains 1, into contact with a light-weight wrapping film W supplied from a roll 6. The film is drawn through openings 19, 20 in package support rails 3, 4 into a suction chamber 11, and as the package contacts the film, the vacuum in the chamber 11 is momentarily broken. As the package moves past the openings 19, 20 and continues between support rails 3, 4, the film is severed from the reel by a rotary cutter 9 and caused to fold about three sides of the package to form a U-shaped band. The partially wrapped package is discharged into a rotary gripper 17. The vacuum in the chamber, drawn through a nozzle 12, is controlled by a flapper valve 13 actuated by the engagement of an arm 14 on the valve with the lugs 2. Whilst a lug is in contact with the arm, the valve is held, as shown in Fig. 1, to supply vacuum to the chamber by sealing an opening in the wall of the nozzle.
Patent GB-1180798-A (GB)
Title: Improvements in or relating to Aquarium Equipment
Inventor: SMITH REGINALD ALFRED GEORGE
IPC: A01K63/00
Filed: 1967-09-01
Abstract: 1,180,798. Fish breeder. R. A. G. SMITH. 30 Aug., 1968 [1 Sept., 1967], No. 40080/67. Heading A1A. A fish breeder for use in an aquarium, has a receptacle including two rectangular flexible mesh faces 1, each joined along three of its edges to a respective longitudinal edge of a flexible, transparent sheet having a free end portion 7 serving as a top cover. The receptacle is supported in the aquarium by a top portion of a receptacle-frame member joined by clips 9a, 9b to an aquarium member. The receptacle is collapsible for storage &c. and may be made entirely of flexible water permeable material, e.g. a woven mesh of synthetic fibre.
Patent GB-1368253-A (GB)
Title: Railway vehicles
IPC: B61F5/24
Filed: 1971-08-26
Abstract: 1368253 Railway vehicle undercarriages WEGMANN & CO 26 Aug 1971 [27 Aug 1970] 40149/71 Addition to 1368252 Heading B7L A railway vehicle comprises a body 3, Figs. 1 and 3, mounted on a bogie 1 by suspension means including a control linkage consisting of two longitudinal radius rods 4a, 4b each having a spherical joint at each end, one end of each rod being connected to the bogie at 9a, 9b and the other end of each rod being attached to a respective one of two cranks 5a, (5b) which are fast on respective ends of a transverse shaft 7 which is in turn connected to the body 3, said cranks and shaft forming parts of the control linkage which is interrupted by damping couplings 11a, 11b in the rods 4a, 4b. The suspension means are such that on a straight section of track the bogie can rotate about its vertical axis only by overcoming an opposing resistance offered by the damping couplings, without at the same time free movement being prevented between the bogie 1 and the body 3 in the fore and aft, lateral and vertical directions, whereas upon entering a curve the resistance of the damping couplings is overcome. Each coupling 11a, 11b connects two relatively slidable sections of a radius rod 4a, 4b via an hydraulic damper, as shown, or a spring-biased frictional damper, Fig. 2 (not shown). In another form, a single damping coupling 32, Fig. 5, is provided in the transverse shaft and may be a spring-loaded multiple disc friction coupling as in Fig. 10 (not shown). In Fig. 5, the control linkage is inverted relative to Figs. 1 and 3, so that the transverse shaft is connected to the bogie instead of the vehicle body. Longitudinal forces between the bogie and the body may be transmitted through a link rod 17, Figs. 1 and 3, or 37, Fig. 5, in the median plane L, one end of which is pivoted to the vehicle body at 16 or 36 and the other end of which is connected via spring means 18 to the bogie centre. Alternatively, Fig. 9, each shaft section 67a and 67b may be connected via rods 79a and 79b to a linking member 80 pivotable about its central vertical axis and supported on the body 63 by springs 82. Sprung axle guide means, Figs. 11 and 12 (not shown), may be arranged between the bogie and roller axle bearing housings and have spring elements comprising rubber chevrons which are approximately at the level of the wheel axle.
Patent GB-1440375-A (GB)
Title: Acid terminated polymeric fat acid polyamide resin
IPC: C09D11/10
Filed: 1973-08-24
Abstract: 1440375 Acidic polyamides GENERAL MILLS CHEMICALS Inc 24 Aug 1973 40243/73 Heading C3R An acid terminated polyamide resin having an acid number greater than 50 and up to 120 comprises the reaction product of: (A) 100 equivalents of a carboxylic component comprising (i) a polymeric fat acid and (ii) one or more C 4 -C 20  aliphatic, cycloaliphatic or aromatic dicarboxylic acids, or their esters, (i) providing 12À5 to 75 equivalent per cent of the carboxyl groups; and (B) 50 to 75 equivalents of a diamine component in which isophorone diamine provides 20 to 100 equivalent per cent of the amine groups. Solutions of the resins in C 2 -C 5  alkanols are useful for the manufacture of water dilutable flexographic inks. In specific Examples (A) (i) is polymerized tall oil fatty acids, (A) (ii) is isophthalic acid with or without adipic or azeloic acid, and (B) is isophorone diamine with or without ethylene diamine; phosphoric acid is used as catalyst. The products are dissolved in n-propanol, neutralized with diethylamine and diluted with water. Reference is made to Specifications 1,236,088, 1,177,507, 1,100,972, 1,096,908, 1,086,877 and 976,007.
Patent GB-1444906-A (GB)
Title: Hydraulic transmitter
IPC: F16K31/54
Filed: 1972-08-30
Abstract: 1444906 Valves STERLING HYDRAULICS Ltd 15 Aug 1973 [30 Aug 1972 6 Nov 1972] 40255/72 and 51066/72 Heading F2V [Also in Division F1] The transmitting unit of an hydraulic telemotor system comprises a housing 10 slidably mounting a piston 60 having a bore 61 containing a relief valve 67 for excess pressure in transmitting line 36, there being means for replacing movement of the transmitter with the receiver at a preselected point in the stroke of piston 60. As shown, the rephasing means comprises a further piston 63 slidable within bore 61 and having a rod 64 whose end 65 is attached to a valve closure member 73 biased by spring 74 against 0-ring 71 carried by relief valve 67. A pin 76 carried by piston 60 passes through elongated slot 75 in piston 63 to determine the limits of travel of the latter relative to piston 60. To effect rephasing, a manual control lever attached to a shaft (14, Figs. 2, 4, not shown) is rotated causing piston 60 to be moved via a pinion (15) and rack 17 into a position, e.g. mid-stroke, in which piston end 63A engages stop 51 thus unseating closure member 73 from 0-ring 71. Axial grooves in rod end 65 and a transverse bore 77 in piston 60 thus permit transmitting line 36 to communicate with a liquid reservoir. Rephasing may take place at any other preselected position by appropriate choice of the length of piston 63. E.g. if the latter ends at dotted line 78, then rephasing would occur at the end of stroke of piston 60. The receiver may be spring biased towards its central position. There may be two pistons 60 mounted in a common housing 10 and having racks 17 engaging opposite sides of a common pinion (15). Fig. 6 (not shown) illustrates a slightly modified transmitter. Numerous applications are specified.
Patent GB-905812-A (GB)
Title: Improvements in or relating to power driven implements for horticultural and like uses
Inventor: COPPING GEORGE SAMUEL
IPC: B62D51/00
Filed: 1959-11-27
Abstract: 905,812. Agricultural implements. FARMFITTERS Ltd. Feb. 7, 1961 [Nov. 27, 1959; Feb. 5, 1960], Nos. 40498/59 and 4265/60. Classes 6(1), 6(2) and 6(3). A power handle for use with implements comprises a power unit 8 mounted on a frame 15 provided with a handle 19. The frame 15 is provided with slots 23, 24 which engage on rods in an implement, the frame being locked in position by catches 25. A drive block 4 is attached to the motor shaft 5 and imparts drive to the implement. The block 4 is provided with screw holes for bolting a tool such as a mower blade directly to the block. A groove 4<SP>11</SP> is formed in the block for attaching a belt of a belt drive and two pins 4<SP>111</SP> are provided for engaging in slots 27 of a driven member of an implement such as a rotary cultivator 33. The belt drive may be used to drive an engine-less mower, the power handle being attached to cross rods on the mower frame.
Patent GB-1041850-A (GB)
Title: Method and apparatus for supporting moving webs
IPC: B29C48/355
Filed: 1963-10-15
Abstract: 1,041,850. Feeding webs. NATIONAL DISTILLERS & CHEMICAL CORPORATION. Oct. 15, 1963 [Oct. 23, 1962], No. 40702/63. Heading B6B. [Also in Division G5] A travelling web is supported out of contact with a web turning member by a dispersed current of air acting against the web. The turning member comprises a diffuser shaped box 21 connected to an air duct 20b. The box has a substantially semicylindrical head 24 formed of a perforate, rigid but deformable sheet material over which is applied a fabric cover 26, such as muslin and other air permeable porous materials, woven or felted.
Patent GB-1270328-A (GB)
Title: Process for the production of ethylene graft copolymers
Inventor: RATZSCH MANFRED
IPC: C08F255/02
Filed: 1969-08-15
Abstract: 1,270,328. Grafted ethylene copolymers. LEUNA-WERKE "WALTER ULBRICHT" VEB. 15 Aug., 1969, No. 40942/69. Heading C3G.  A graft polymer is prepared by causing an ethylene copolymer, which has been produced by copolymerizing ethylene with a comonomer (A) in a reactor at a pressure above 500 atmospheres and a temperature above 100‹ C. in the presence of a free radical initiator, and expanded at a pressure between 100 and 350 atmospheres and has had its temperature adjusted to 50‹ to 200‹ C., to react with a further quantity of comonomer (A) or with a further comonomer (B), optionally with the addition of a further amount of initiator. Specified comonomers are vinyl acetate, vinyl propionate, acrylic acid, ethyl acrylate, methyl methacrylate, vinyl chloride and styrene. Suitable catalysts are oxygen, peroxides and azo compounds. A chain transfer agent e.g. hydrogen, ethane, propane or carbon tetrachloride may be used in the preparation of the ethylene copolymer and/or the graft polymerization step. In the examples, (a) vinyl acetate is grafted on to ethylene-vinyl acetate copolymer, optionally in the presence of tertbutyl perbenzoate; (b) ethyl acrylate is grafted on to ethylene-ethyl acrylate copolymer in the presence of hydrogen and (c) methyl methacrylate is grafted on to ethylene-methyl methacrylate copolymer in the presence of propane and azodiisobutyronitrile.
Patent GB-1166484-A (GB)
Title: Improvements in Tubular Products and their manufacture
Inventor: JANSSEN REINHARD HENDRIK ANTOO
IPC: B28B3/26
Filed: 1966-09-14
Abstract: 1,166,484. Extruding tubes. R. H. A. JANSSEN. 14 Sept., 1966 [4 April, 1966], No. 41052/66. Heading B5A. [Also in Division F2] A tube, e.g. of clay or plastics, formed by extrusion of material through a nozzle 4 having an orifice plate 11 surrounding a core 10, has its entire outer cross-section varied by the movement of piston-operated segments 14. Alternatively an iris type diaphragm may be used instead of the segments. Various pipe sections are described, Figs. 3-12 (not shown), in particular, pipes having a collar at one or both ends obtained by cutting extrusions as shown in Figs. 4 and 6 (not reproduced). These collared pipe sections may be counterbored as at (24), Fig. 3 (not shown), and the initial collar may be cut square to the axis of the tube, undercut as at (30), Fig. 5 (not shown), or grooved as at (34), (40), Figs. 8-12 (not shown), to receive sealing rings (36), (41). The tubes may have reinforcing collars (33), (37), (39), Figs. 7, 9 and 11 (not shown), and also described is a rubber pipe joint (29), Fig. 5 (not shown), over which may be placed a heatshrinkable plastics sleeve. Such sleeves may be used alone as joints, Figs. 12 and 13 (not shown).
Patent GB-1432457-A (GB)
Title: Production of 1-amino-4-hydroxy-2-hydroxyalkoxy-anthraquinones
IPC: C09B1/54
Filed: 1973-08-31
Abstract: 1432457 Production of 1-amino-4-hydroxy- 2-(hydroxyalkoxy)anthraquinones BASF AG 31 Aug 1973 [1 Sept 1972] 41070/73 Heading C4P A process is claimed for the production of 1 - amino - 4 - hydroxy - 2 - (hydroxyalkoxy)- anthraquinones by the reaction of a 1-amino-4- hydroxy-2-halo-anthraquinone with a diol or polyhydroxy compound of 2-11 carbon atoms and 3 or 4 hydroxyl groups which contains at least one primary alcoholic group in the presence of an alkaline reagent and a phenol, wherein the reaction is carried out in the presence of an aprotic solvent which is miscible with water and which is inert to the alkaline reagent under the reaction conditions. The aprotic solvent may be N-methylpyrrolidone or poly-N-vinylpyrrolidone. The reaction temperature may be from 100-170‹ C. Molecular proportions of reactants and the alkaline reagent are specified. The dyes give pink to red dyeings on polyester or polyamide fibres.
Patent GB-1205439-A (GB)
Title: Improved method and apparatus for the manufacture of ropes, cables or cords
Inventor: MUDDE WILLEM
IPC: D07B3/02
Filed: 1967-09-08
Abstract: 1,205,439. Stranding machine. N. V. TOUWSLAGERIJ V. H. GEBR. MUDDE. 8 Sept., 1967 [8 Sept., 1966], No. 41160/67. Heading D1T. Rope is made by twisting individual yarns drawn from stationary bobbins 1, 2 and 3 in loops 7, 8 and 9 which pass around stationary supply packages, plying the twisted strands so formed and by causing the twisted strands to rotate in an outer loop 14 around the strand loops. Each strand loop and the outer loop is rotated at both ends. Preferably the axes of the flyers for the strand loops 7, 8 and 9 lie on the surface of a cylinder whose axis is coincident with the axis of the flyers for the outer loop 14. The loops may be rotated in the same or opposite direction at the same or different speeds. The rope composition may be varied by altering the speed of rollers 17, 18 relative to that of the loops. The yarn packages 1, 2 and 3 may be unwound overend. The formed rope, e.g. of polyamide strands, can be heated in oil bath 19.