baber/WOPTO huggingface dataset:
Patent GB-877026-A (GB)
Title: N-type semiconductors and method of manufacture
IPC: H01B1/00
Filed: 1959-08-06
Abstract: 877,026. Semi-conductor devices. NATIONAL LEAD CO. Aug. 6, 1959 [Aug. 11, 1958], No. 26962/59. Class 37. [Also in Group XXIII] A semi-conductor device, e.g. rectifier, thermistor or transistor, comprises a body of ntype semi-conductor material of titanium dioxide or barium or strontium titanate or a mixture thereof, and at least one metallic electrode applied to the body to form therewith an ohmic contact which retains a low and substantially constant resistance after repeated thermal cycling and over a wide voltage range. Preferably the electrode is prepared from a metal, e.g. Sn, Ti, which diffuses into the semi-conductor with the same or higher valence state than the cation of the semi-conductor which it displaces, or which goes interstitially in the crystal lattice of the semiconductor body. The embodiment shown in Fig. 2 comprises an n-type semi-conductor body 10 of mono-crystalline rutile or sintered barium or strontium titanate or a mixture thereof, including oxides of Sb, Ta, W, Nb, or of La or other rare earth metals, and ohmic electrodes 11, each constituted by a fired-on mixture of powdered metallic tin and a lowmelting glass frit composition. Leads 12 are secured to the electrodes 11 by soft soldering. In examples described, finely-divided barium titanate or barium strontium titanate, containing 0.2% lanthanum, is fired at 1350 C. for 20 hours to obtain body 10. Electrodes 11 are applied as a mixture of lead borate glass frit composition and finely-divided pure tin, in a ratio of 1 : 5 by weight, in a volatile organic medium, being subsequently air-dried at 125 C. for 1 hour, then fired at 450 C. for 30 minutes. Alternatively, the glass frit may comprise lead silicate or lead borosilicate, and the ratio of tin to glass frit should be in the range 3 : 1 to 10 : 1 by weight. In Fig. 4, electrodes 13 of titanium are applied to the body 10 by abrading the surfaces of the body and then pressing them against a titanium wheel which is turning at high speed. Silver paste, comprising powdered silver and glass in a liquid vehicle, is brushed on to the titanium electrodes to provide films 14, which are airdried and then fired at 425 C. for 10 minutes. The paste layers, which may alternatively contain platinum, are burnished before leads 15 are soft-soldered to them. The Specification mentions the use of Be, Zr, Nb, W, Ta as ohmic electrodes, and the non-ohmic character of indium-gallium and indium amalgam rubbed-on contacts. Specification 714,965 is referred to.
Patent GB-1044951-A (GB)
Title: Anthelmitic 5-arylazorhodanines
Inventor: BRODY GERALD
IPC: A61K31/00
Filed: 1963-07-09
Abstract: A medicinal composition for the treatment of ascorids and hookworms in humans and animals comprises pharmaceutical carrier and an effective amount of a 5(nitrophenylazo) rhodanine of formula <FORM:1044951/A5-A6/1> wherein R is hydrogen, methyl, ethyl, propyl or butyl and X is methyl, chloro or nitro.  Specified are 5(p-nitrophenylazo) rhodanine and the 3-methyl-, 3-ethyl, - 3-n-propyl-, 3-isopropyl- and 3-n-butylderivatives thereof; 3-methyl-5 (21, 41-dinitrophenylazo) rhodanine, 3-methyl-5 (21-methyl -41-nitrophenylazo) rhodanine and 3-methyl-5 (21-chloro-41-nitrophenylazo) rhodanine. 0.00625 to 0.2 per cent wt. of active ingredient may be mixed with a poultry feed and 0.0088 to 0.33 per cent by weight may be incorporated in a dog ration.  The active ingredient may be added to drinking water or put up in tablets or capsules.  A chick concentrate contains 0.0375 to 0.6 per cent of active ingredient in association with minerals, vitamins and antibiotics.  For humans the active material may be incorporated in foods e.g. cereals, milk and puddings.  The compounds 3-n-butyl 5 (p-nitrophenylazo) rhodanine and 3-methyl-5 (21-methyl-41-nitrophenylazo) rhodanine may be used for treating coccidiosis in poultry.
Patent GB-1154721-A (GB)
Title: Improvements in Combine Harvesters
Inventor: JARVIS JOHN STEVENS
IPC: A01D43/10
Filed: 1965-06-25
Abstract: 1,154,721. Combine harvesters. RANSOMES SIMS & JEFFERIES Ltd. 16 June, 1966 [25 June, 1965], No. 27119/65. Heading A1F. A combine harvester including a crop cutting mechanism and a feed auger rearwardly of the cutting mechanism comprises an upwardly and rearwardly inclined elevator having a casing and an endless conveyer within the casing, the casing having an opening in a floor portion thereof provided with a removable cover and being adapted, when the cover and endless conveyer are removed, to support cooperating bruising or crimping rollers in the path of material fed to the casing from the auger. As illustrated the opening is defined by angle bars 43, 45, 53 into which opening a pair of plates 63 carrying rollers 75, 103 is inserted when the cover 41 and conveyer 79 are removed. The rollers comprise meshing axially extending flutes of resilient material, and the lower roller is urged towards the upper roller by springs 121 the compression of which can be adjusted by nuts 122. A reel (not shown) is adjustable by means of two hydraulic rams.
Patent GB-1023438-A (GB)
Title: Improvements in or relating to cable clamps
IPC: H02G7/06
Filed: 1964-07-01
Abstract: 1,023,438. Band clamps. USTAV PRE ROZVOJ STROJARESKEHO SPOTREBNEHO TOVARU. July 1, 1964 [July 2, 1963], No. 27132/64. Heading E2B. A clamp for suspending cables comprises a strip of plastics material having an intermediate portion of substantially constant width, a first end portion wider than the intermediate portion and a second end portion narrower than the intermediate portion and terminating in a substantially cylindrical catch part 1 which has its axis substantially in the median plane of the strip and perpendicular to the longitudinal axis thereof, the first end portion being provided with a slot 4 elongated in the transverse direction of the strip and of such dimensions that the catch part 1 and the intermediate portion can be passed therethrough and said intermediate portion being provided with a second slot 2 elongated in the longitudinal direction of the strip and of such dimensions that the catch part and the second end portion can be passed therethrough and means 3 between the first end portion and the second slot operative to prevent loosening of a loop formed by passing the intermediate portion through the first slot. In the construction shown the means 3 comprise a set of teeth provided on each surface which are directed towards the first end portion and arranged to engage a respective longer side of the first slot. A metal reinforcing piece (not visible) is provided in the first end portion of the strip.
Patent GB-1112391-A (GB)
Title: Improvements relating to electronic multiplying apparatus more particularly for use in the dispensing of motor fuels
IPC: G06F7/62
Filed: 1965-06-25
Abstract: 1,112,391. Multiplying apparatus. COMPAGNIE DES COMPTEURS. 25 June, 1965 [30 June, 1964], No. 27152/65. Headings G4A and G4D. The multiplicand is set up on selector switches 1 and the multiplier is supplied as a stream of equal-valued pulses to an electronic selector 9. With selector 9 set to the lowest denomination a, a pulse generator 14 then supplies pulses to the a denominations of a binary-coded decimal preselection counter 5 and to an electronic totalizing counter 7. The counter 5 is connected through a code translator 6 and visual decimal indicator to the selector switches 1 and when the a denominations of 1 and 5 coincide AND gate 13a pulses a monostable pulse generator 11 which stops pulse generator 14 and shifts electronic selector 9 to the b denomination. The process repeats for each denomination after which selector 9 reaches zero. The whole cycle repeats for each multiplier pulse. The device is applicable to quantity x price calculations such as in fuel dispensers and electric supply meters.
Patent GB-228256-A (GB)
Title: Improvements relating to machines for casting heads on nails
IPC: B22D17/30
Filed: 1923-10-31
Abstract: 228,256. Smith, J. D., Oct. 31, 1923. Nails.-In a machine for casting lead heads on nails the lead is forced into a mould containing a nail and passages for the escape of air and excess metal are provided. Nails are fed from a drum 1, Fig. 2, filled through a hinged door 1<c> with a spring catch 1E, which is supported on rollers 5 carried by a pivoted frame 10 and is rotated by glaring 3, 6, 16, 15. The drum is automatically tilted by a spring 25 as it empties and this action can be adjusted by a screw 23 and weight 31. The nails are carried by a conveyer 34 to a box 37, Fig. 4, oscillated about a pivot 38 and having slits through which the shanks of the nails fall. At the ends of each of a number of continuation slots 40 one nail enters one of a set of notches in a reciprocating bar 68 by which it is brought adjacent a tube 43. The set of nails fall down the tubes and are driven by reciprocating plungers 46 into adjustable spring sockets 49, Fig. 12, carried by an oscillating frame 45. During the rotation of this frame long and bent nails are removed by an oscillating extractor 55, normal nails are removed by an extractor 52 and fed to a conveyer 54 and short nails fall into a shoot 58. The conveyer 54 drops the nails into a second oscillating box 64, Fig. 5, whence they pass to slots and are fed, as before, in sets to tubes 43 and split tubular holders 73A from which they are driven oy plungers 77 into nipples 75 of an intermittently rotated cylinder 76. When a set of nails arrives opposite a series of mould cavities in a bar 91. Fig. 5B, pot 88 containing melted lead is moved to press its nozzle 87 against the moulds and a charge of lead is forced in by a plunger 90, air and excess metal escaping bv passages 101A, 101, 99, 100, 102, and 103, Fig. 5B. Pressure on the plunger is then released, the pot withdrawn and then the plunger is positively returned, if it has not already floated up. The plunger is operated from a shaft 97 by a weighted lever 96 when a catch, holding it, is tripped by linkwork operated by the end nail of a set as the cylinder 76 rotates. The pressure is relieved by a cam lifting the weighted lever, which an turn slightly on the shaft 97 and the plunger is returned positively, if necessary, by a second cam and lever 95. The headed nails are pushed out bv levers 83 and a fixed cam 85 and extracted by a grid reciprocated by the rods actuating the plunger 77. Springs are arranged where required and the parts are moved by the mechanism shown.
Patent GB-535475-A (GB)
Title: Polymerizable compounds
IPC: C08F22/28
Filed: 1939-10-06
Abstract: 535,475. Maleic and fumaric acid esters. TRIGGS, W. W. (Rohm & Haas Co.). Oct. 6, 1939, No. 27366. [Class 2 (iii)] Acid esters of maleic or fumaric acid and methallyl alcohol or its homologues are prepared by known methods of esterification. 'The acid esters may be polymerized, alone or in admixture with other polymerizable organic compounds, to yield insoluble infusible resins. In examples (1) methallyl alcohol is esterified with maleic anhydride to yield an ester that polymerizes on standing ; (2) methallyl acid maleate is polymerized in the presence of benzoyl peroxide which may be dissolved in ethylene dichloride ; (4) methallyl alcohol is esterified with maleic anhydride in the presence of methyl acrylate and the product polymerized in the presence of methyl acrylate, benzoyl peroxide, and ethylene dichloride ; (5) methallyl and maleate and styrene are polymerized in the presence of benzene and benzoyl peroxide; (6) methallyl acid maleate, methyl acrylate and ethyl methacrylate are polymerized in the presence of ethylene dichloride and benzoyl peroxide; (7) an emulsion of methyl methacrylate, methallyl acid maleate and benzoyl peroxide in aqueous ammonium polyacrylate is polymerized. The polymers, which are polybasic acids, may be converted into salts or esters, such as alkyd resins. The polymerization may be effected in situ on materials such as paper, wood or fabrics.
Patent GB-1044218-A (GB)
Title: Improvements relating to methods for obtaining a soil sample preserved in the state in which it is cut
IPC: E21B25/08
Filed: 1963-07-10
Abstract: 1,044,218. Boring earth &c. STICHTING WATERBOUWKUNDIG LABORATORIUM. July 10, 1963 [Aug. 2, 1962], No. 27375/ 63. Heading E1F. The shape of a soil sample is preserved by supplying liquid to the sample within a cutter tube, the liquid forming about the sample a substantially water-tight skin serving to transfer the pressure of the rest of the liquid to the sample. The liquid may be an aqueous suspension of clay-like material containing weighting material, or a heavier suspension of weighting material in a solution of a water missible organic solvent with a synthetic resin insoluble in water which forms a synthetic resin skin on the surface of the sample on contact with the water in the sample. When cutting long samples the synthetic resin suspension is supplied to the cutter tube and the clay-like suspension is supplied to the driving and extension tubes of the cutter tube, sufficient suspension being supplied to the cutter tube to form a skin on the whole length of the sample. The liquids may contain colouring matter, and the cutter tube may be of stainless steel or have a chromium plated inner surface. The lower end of the cutter tube may be closed by an element which is released at a depth at which it is desired to take a samble and floats upwardly through the liquids.
Patent GB-1115914-A (GB)
Title: Improvements in tool guide-locator
IPC: B23B49/02
Filed: 1965-06-29
Abstract: 1,115,914. Drilling. GENERAL ELECTRIC CO. 29 June, 1965 [1 July, 1964], No. 27455/65. Heading B3C. A tool guide locator for use with a jig comprises a tool holding body 12 with a central axis, along which is aligned a tool receiving cavity 34 which has means for securing a tool shank, at least one pair of concentric inner and outer members 16, 18 separated by anti-friction means, in the form of balls 32, the inner member(s) 16 being secured to the tool-holder body and the outer member having a cylindrical locating surface, which extends radially farther from the axis than the outer surface of the tool holder body and is co-operable with an internal surface 36 of a jig. The means for attaching a tool in the cavity 34 may be a set-screw 28 or by collets 50a, 50b attached to the tool holder body 12. Screw means may also be provided to permit adjustment of the depth of the tool which in the particular embodiment described is a drill. The anti-friction means may also alternatively be rollers or other anti-friction medium to facilitate free relative rotation between the concentric members.
Patent GB-779523-A (GB)
Title: Method of grinding the components of the endless tracks of tracked vehicles and a machine for carrying out the method
Inventor: MALTBY GEORGE HERBERT
IPC: B62D55/32
Filed: 1953-10-06
Abstract: 779,523. Grinding endless tracks for vehicles. MALTBY'S ENGINEERS, Ltd.' Oct. 6, 1954 [Oct. 6. 1953], No. 27477/53. Class 60 [Also in Group XXII] A machine for grinding endless tracks for vehicles such as tanks, 'tractors and bulldozers, comprises two track-supporting wheels 13, 14, at least one of which is resilient, a grinding wheel 27, and a support 23 engaging each track component during its engagement with the grinding and supits engagement with the grinding wheel and supporting it against thrust applied thereto by the grinding wheel. Automobile or other resilient tyres may be fitted to both of the wheels 13, 14 one of which is driven through reduction gearing 45 from a motor 44.which the other is mounted for adjustment along guides 18 by a threaded rod 19. The support 23 is supported on replaceable packing 25 on a baseplate 24 and consists of a pair of angle members which are adjustable towards and away from each other. Fluid is drawn from a tank 10 by a pump 46 and fed through a pipe 47 to the grinding wheel 27. The latter is mounted on a bracket 36 adjustable by means of a screw 39 on a rectangular frame 31 and adapted to be clamped to the frame 31 by butterfly nuts 37. The frame 31 embraces a pair of uprights 28 to which it may be clamped by butterfly nuts 35 and has a pivoted nut 32 at each end for engagement with a pair of threaded rods 31 which may be separately adjusted so as to incline the frame 31 and hence the grinding wheel axis. The grinding wheel may be driven by two universal joints 42 and a telescopic shaft 43 from a motor 44 or, alternatively by a motor mounted on the bracket 36. A device which gives a visual or audible warning to the operator after one passage of the track may be provided. Fishtail gas burners and nozzles for quenching liquid may also be provided on the machine to enable the track to be flame hardened after it has been ground.
Patent GB-1472108-A (GB)
Title: Game board
IPC: A63F7/06
Filed: 1974-06-21
Abstract: 1472108 Pin-tables C CECCHETTI 21 June 1974 [22 June 1973] 27564/74 Heading A6H A soccer, pinball, etc. ball-game board comprises a ball-chute 14, 17 extending from the side of a housing 7 into which a ball or puck 4 leaving the table may pass, the chute being movable against a spring 18 to position it within the outer confines of the housing, such as for packing purposes. The spring 18 forms a wall of the chute. The housing is a one-piece plastics moulding, the playing surface 2 being screwed thereto. A sliding door on the housing may retain the chute in closed position or a retaining pin may be passed into the cup 17.
Patent GB-1397020-A (GB)
Title: Aluminium monostearate
IPC: C09K23/00
Filed: 1973-06-11
Abstract: 1397020 Influenza vaccine MERCK & CO INC 11 June 1973 [14 June 1972] 27635/73 Heading A5B [Also in Division C2] An influenza vaccine is prepared by emulsifying a peanut oil adjuvant of pure isomannide monooleate and pure aluminium stearate, with an equal volume of phosphate buffered saline solution containing bivalent influenza virus.
Patent GB-806987-A (GB)
Title: Improvements in and relating to coffee percolators
Inventor: KIRCHER PAUL JOHN
IPC: A47J31/44
Filed: 1956-09-11
Abstract: 806,987. Coffee percolators. LANDERS, FRARY & CLARK. Sept. 11, 1956, No. 27726/56. Class 129. [Also in Group XVII] A coffee maker comprises a vessel for receiving water having an upright wall 34 with a passageway through it so shaped as to provide vertically spaced markings which indicate the levels corresponding to predetermined quantities of water in the vessel, a spout 26 being fixed to the outside of the wall whose base 32 extends about the passageway which forms the opening between the vessel and the spout. An electric coffee percolator A has a main body 10 with a false bottom 12 in which the electrical controls and heating elements are housed, a fountain tube 22 and coffee basket 24 being provided in the body. Spout 26 has a pouring opening 28 and an enlarged oval side edge 32 by which it is secured to the body, e.g. by brazing, to extend over an area covering all depths of liquid to be used. The passageway shown in Fig. 2 is in the form of openings 36, 38 separated by marking strips 40, arranged and numbered by printing or embossing, to indicate the number of cups of coffee in the pot when the liquid reaches a particular level.
Patent GB-1201898-A (GB)
Title: Improvements in or relating to power hammers
IPC: B21J7/04
Filed: 1969-06-02
Abstract: 1,201,898. Power hammers. VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI. 2 June, 1969 [16 Sept., 1968], No. 27784/69. Heading B3H. A power hammer has its frame 1 supported by arms 4 pivotally mounted to support blocks 6 and to the frame with a damper between the arms and the frame. The frame is preferably supported by four arms each pivoted to the support blocks 6 at the outer end, the frame in the centre 3 and rods 10 at the inner end. The rods 10 on each side of the frame are connected by a saddle 11 integral with a piston 12 whose movement relative to a cylinder 13 on the frame is damped either hydraulically, pneumatically or by springs. The support blocks 6 are mounted on rubber blocks 7.
Patent GB-870805-A (GB)
Title: Improvements in or relating to alkali metal silicate-containing mould-forming compositions
IPC: B22C1/18
Filed: 1957-09-03
Abstract: A refractory composition is obtained by adding an alkali metal silicate to a mixture of finely divided refractory and a phosphate and contacting with a gaseous rigidifying material.  Up to 15% silicate and up to 5% phosphate can be present the silicate always being in greater proportion than the phosphate.  specified are:-refractories-sand, alumina, zirconia, silica, firebrick, magnesia, titania, beryllia, mullite, sillimanite and their mixtures; phosphates-the alkali metal (including ammonium) and alkaline earth metal phosphates, phosphatic minerals and also organic phosphates e.g. tri-eresyl, tri-phenyl and tri-alkyl phosphates.  An organic material which can be burned out may also be present.  The gaseous material can be carbon dioxide, sulphur dioxide, nitrous oxide, hydrogen chloride, stack or flue gases. Specifications 692,030, 847,476 and 847,477 are referred to.
Patent GB-929383-A (GB)
Title: Improvements in printer-slotting machines
Inventor: GREENWOOD HENRY B
IPC: B41F31/14
Filed: 1961-08-01
Abstract: 929,383. Inking apparatus. SAMUEL M. LANGSTON CO. Aug. 1, 1961, No. 27886/61. Class 100 (2). In a printer-slotting machine a messenger roller 58 oscillating between an intermittentlyoperating fountain roller 64 and a continuouslyrotating ink distribution roller 52 carries a lever 130 which oscillates therewith and supports a spring-loaded catch mechanism having a handle 146 and by which the messenger roller may be locked in engagement with the ink distribution roller and locking being effected when the inking train 42, 46, 44, 50, 52 and 58 of the press is to be cleaned. The rollers 42 and 44 of the train are driven through gears from the printing cylinder drive mechanism whilst oscillation of the messenger roller 58 derives from an arrangement comprising a cam 72 and an oscillating lever 114 also coupled to the cylinder drive. The fountain roller 64 is intermittently driven from a lever 78 oscillated by an arm 76 which is pivotally attached at its ends to the cam 72 and the lever 78. A spring-loaded pawl 88 carried by the lever 78 operates a ratchet 84 which is secured to the shaft of the roller 64 and has an adjustable guard 94 to vary the effective stroke of the pawl and thus the amount of ink transferred from the fountain to the messenger roller during each period of contact. The guard is manually adjustable by a lever 100 extending therefrom and carrying a locating pin 110 adapted for engagement in any one of a series of holes 102.
Patent GB-433405-A (GB)
Title: Improvements in or relating to life saving fittings for submarines and like ships
IPC: B63G8/41
Filed: 1934-09-28
Abstract: 433,405. Submarines. GEROLAMI, E., and ARATA, S., 1, Via V. G. Bonavia, Monfalcone, and CANTIERI RIUNITI DELL' ADRIATICO, Monfalcone, Italy. Sept. 28, 1934, No. 27891. [Class 113 (ii)] [See also Group XXI] A double - walled lifesaving buoy 4 is fitted in a three-door chamber 3 set in a bulkhead dividing a submarine 1. The chamber 3 has watertight doors 6, 10, 11, and three guide rails 18 for the buoy 4, which normally rests on a buoyant body 20 which facilitates the discharge of the buoy and its re-entry into the chamber 3.