baber/WOPTO huggingface dataset:
Patent GB-1024236-A (GB)
Title: Improvements in or relating to crushing mills
Inventor: CONNELL WILLIAM
IPC: H02P29/00
Filed: 1963-11-19
Abstract: 1,024,236. Sugar-cane mills. DUNCAN STEWART & Co. Ltd. Feb. 19, 1965 [Nov. 19, 1963], No. 45559/63. Heading B2A. Also in Division G3] In an automatic control system for a succession of crushing mill roller units, if the rate of feed to any unit is greater or less than its proper capacity, the speed and nip of that unit is automatically varied to correct the discrepancy, but, if maximum speed is reached, the speed of the preceding unit (or rate of feed to the unit in the case of the first unit) is varied in the opposite sense. As shown, sugar cane fed at 9 to a conveyer 4 is levelled, cut by knives 6, 7, and transported to a hopper FH1 of turbine driven crushing rollers 1. A further two stages of crushing are provided by rollers 2 and 3. Initially a computer 10 is set to maintain desired rates of feed to the rollers with appropriate nips. Level or weight detectors associated with the hopper of each unit prevent over- or under-filling by adjusting the speed or nip of the associated rollers, the latter being adjusted by hydraulic motors 11, 12, 13. If this is unsuccessful and the speed of the rollers reaches a limiting value, the speed of the preceding rollers is varied or, in the case of the first rollers, the rate of feed to the rollers is varied by controlling the speed of a motor 5 driving conveyer 4.
Patent GB-1203886-A (GB)
Title: Zener diode and method of making the same
IPC: H01L21/205
Filed: 1968-09-25
Abstract: 1,203,886. Zener diodes. HITACHI Ltd. 25 Sept., 1968 [25 Sept., 1967; 27 Sept., 1967 (2)], No. 45591/68. Heading H1K. A Zener diode comprises a layer of silicon of one conductivity type having an impurity concentration of 1 x 10<SP>17</SP> to 4 x 10<SP>19</SP> atoms. cm<SP>-3</SP> and an epitaxial layer of the opposite conductivity type having an impurity concentration of 2 x 10<SP>19</SP> to 1 x 10<SP>21</SP> atoms. cm<SP>-3</SP>, the impurity concentration gradient being 2 x 10<SP>21</SP> to 7 x 10<SP>23</SP> atoms. cm<SP>-4</SP> across the PN junction between the layers. The first layer may comprise a single crystal wafer or may be an epitaxial layer deposited on a high conductivity substrate of the same conductivity type. The epitaxial layer of the opposite conductivity type may be produced by decomposition of SiH 4 , Si 2 H 6 , SiHCl 3 SiCl 4 , GeH 4 , GeCl 4  or Gel 4  and may be doped with PH 3 , AsH 3 , PCl 3 , BCl 3  or B 2 H 6 . The diodes are provided with ohmic contacts of Al, Au, Ni, Ni-Au, or Au-Sb by vapour deposition, plating, or alloying. The surface of the wafer may be sandblasted before plating with Ni. The devices may be punched out of a sheet and the edges etched. The thickness of the epitaxial layer is selected so that formation of the ohmic contact does not cause deterioration or shorting of the junction. The epitaxial deposition conditions are discussed.
Patent GB-1211354-A (GB)
Title: Improvements relating to passivated semiconductor devices
IPC: C23C16/30
Filed: 1967-10-06
Abstract: 1,211,354. Silicon oxynitride coatings. GENERAL ELECTRIC CO. 6 Oct., 1967 [1 Dec., 1966], No. 45670/67. Heading C1A. [Also in Divisions C7 and H1] An insulating protective coating for a semiconductor device comprises a glass including silicon, oxygen, and nitrogen in a solidified amorphous state. The glass (silicon oxynitride) exists as a ternary composition, although it appears from the Specification that it may be desirable to incorporate a small proportion of hydrogen, and its properties would seem to lie between those of silicon dioxide and silicon nitride. Preferred proportional percentages by weight of the constituents are: Si : 46-60%; 0 : 1-50%; N : 1-35%. A preferred method of depositing such a coating on silicon involves the pyrolytic decomposition of a mixture of silane, ammonia and oxygen. The oxygen may be replaced by nitrous oxide or nitric oxide and the ammonia may be used as a carrier gas for the process (in which case about 98% NH 3  is used) or a separate carrier gas such as H 2  may be used. The semi-conductor body is heated by induction heating to a temperature in the range 800-1200 C. and the reacting gases are then introduced in suitable proportion. For deposition on germanium or gallium arsenide alternative methods such as glow discharge dissociation of suitable gases at a comparatively low temperature or sputtering silicon in an atmosphere of oxygen and nitrogen, may be preferable.
Patent GB-1522254-A (GB)
Title: Method for preparation of a foam of chlorinated vinyl chloride polymer
IPC: C08J9/12
Filed: 1976-11-03
Abstract: 1522254 Chlorinated vinyl chloride polymer foams TOKUYAMA SEKISUI KOGYO KK 3 Nov 1976 [5 Nov 1975] 45753/76 Heading C3C A foam of a chlorinated vinyl chloride polymer, having a chlorine content of 60-75% by wt., is made by impregnating 100 parts by wt. of the polymer with 1-50 parts by wt. of a blowing agent which is a C1-5 alcohol, and heating the impregnated polymer to a temperature and for a time sufficient to cause it to foam. In the examples (a) a polyvinyl chloride or a propylene/vinyl chloride copolymer was chlorinated in aqueous suspension and then (b) mixed with ethyl, methyl, or aryl alcohol as blowing agent and optionally calcium carbonate methyl methacrylate/butadiene/styrene copolymer, dibutyl tin maleate and/or a polymeric lubricant and the mixtures were then either (I) placed in a mould which was heated under pressure and a foam was obtained when the pressure was released, or (XI) fed to an extruder to obtain a foamed rod.
Patent GB-1405348-A (GB)
Title: Water-in-oil emulsion type explosive compositions having strontium-ion detonation catalysts
IPC: C06B47/14
Filed: 1973-10-03
Abstract: 1405348 Explosive compositions ICI UNITED STATES Inc 3 Oct 1973 [6 Oct 1972] 46162/73 Heading C1D A water-in-oil emulsion explosive composition comprises by weight 1-10% of a waterimmiscible carbonaceous fuel; 55-87% of an oxidizer comprising ammonium nitrate, another inorganic nitrate, an organic amine oxidizing salt, and an inorganic chlorate or perchlorate; 10-25% of water; 0À5-2% of a water-in-oil emulsifier; sufficient occluded gas or gasentrapping material to give the composition a density of 0À8 to 1À4 gms./c.c.; and 0À4-4% of strontium ion in the form of a water-soluble strontium salt to act as a detonation catalyst sensitizer. The composition does not need a booster charge, being cap-sensitive in diameters as low as one inch. Many suitable ingredients are listed. Part of the water may be replaced by ethylene glycol, methanol, ethanol, or propanol. The occluded gas may be air or other specified gases. Other optional ingredients include gelling agents and auxiliary fuels, e.g. Al or Mg. In examples, the ingredients used are microcrystalline wax, refined mineral oil, ammonium nitrate, sodium nitrate, ethylene diamine dinitrate, ammonium perchlorate, sorbitan monooleate or mono- and di-glycerides of fatty acids, water, guar gum, sulphur, hollow glass spheres, and strontium nitrate, chloride, acetate, or hydroxide. Reference is made to Specifications 1,216,229, 1,262,973 and 1,329,512.
Patent GB-1473687-A (GB)
Title: Work handling
IPC: D05B31/00
Filed: 1974-10-25
Abstract: 1473687 Sewing machines; work holder BRITISH UNITED SHOE MACHINERY CO Ltd 25 Oct 1974 [26 Oct 1973 26 July 1974] 46362/74 Heading D1G A work holder for holding composite work pieces comprises a frame 11 to which is attached a base plate 12 and a hinged cover plate 14, the frame holding a plate 17 having shaped openings in which the work pieces 8, 9 lie. The cover plate has holes 15 in which other work pieces 10 lie. The work holder is moved in a predetermined path in an automatic sewing machine, access holes 19 and 20 for the needle being provided in the cover and base plates.
Patent GB-1400028-A (GB)
Title: Synthetic fibre end tapering method
Inventor: YOSHIHAU AWAZI
IPC: A46D9/00
Filed: 1972-10-09
Abstract: 1400028 Tapering bristles PENTEL K K 9 Oct 1972 46396/72 Heading A4K [Also in Divisions B6 and D1] Acryl, nylon or polyester synthetic fibres are tapered by forming them into a bundle and subjecting the end portion of the bundle to the action of an etching liquid applied more effectively to the tip part than to the upper part of the end portion. The tip part may for example be rubbed against a surface, such as an etchant container bottom or a needle-studded plate moving in the etchant, or a jet of etchant may be directed at right-angles to the fibres with greater strength against the tip portion. The portion other than the end portion of the bundle may be protected by application of an adhesive or impregnation with a liquid resistant to the etchant. After etching, a second liquid may be applied to remove dissolved portions of the fibres and to remove traces of etchant, and the second liquid may be the same as the etchant but either more diluted or at a lower temperature. The bundle may be further washed in a third liquid. Examples of the etchant are:- for nylon fibres; m-cresol and methanol solution of calcium chloride, heated methanol solution of calcium chloride, p-toluenesulphonic acid, formic acid, acetic acid, alcohol solution of zinc chloride, phenol, xylenol, hot benzyl alcohol, ethylenic chlorohydrin, hydrochloric acid, sulphuric acid, nitric acid, phosphoric acid: for acryl fibres; hot dimethylformamide, hot dimethylsulphoxide: for polyester fibres; phenol, dichloroacetic acid, trichloroacetic acid with ethane tetrachloride, methylene chloride, trichloroethylene, acetic acid, acetone: singly or in combination. The second liquid may be (a) the etchant diluted with alcohols such as methanol or ethanol, ketones such as acetone or ethylmethylketone, esters such as methyl acetate or ethyl acetate, aromatic hydrocarbons such as toluene or xylene, or water, (b) the etchant used at a lower temperature, e.g. methanol solution of calcium chloride, dimethylformamide, dimethylsulphoxide, (c) a liquid soluble with the etchant but having no fibredissolving ability, e.g. methanol, ethanol, dimethylformamide, methylene chloride, trichloroethylene, used with fibres which they do not dissolve, e.g. dimethylformamide with nylon. Examples of the third liquid are methanol, ethanol, acetone, ethylmethylketone, methyl acetate, ethyl acetate, toluene, xylene, water.
Patent GB-937696-A (GB)
Title: Door furniture
IPC: E05B3/06
Filed: 1961-12-29
Abstract: 937,696. Door handles. E. HOLDEN & CO. (B'HAM) Ltd., and E. J. HOLDEN. Dec. 29, 1961, No. 46575/61. Addition to 937,112. Class 44. A self-centring door handle 10 has a cylindrical part which rotates in a fixing-plate 11 and a rearward extension 102 which supports a stopplate 13 detachably held in position by a clip 14 and includes a spirally wound spring 15. An insert 12 press-fitted in the plate 11 forms stops 122 for the plate 13 and has a flange 123 for securing one end of the spring as shown. In an embodiment the insert 12 is omitted; the fixing plate 11 has stops for the plate 13 and a flange 113 for supporting one end of the spring, and the boss 102 has a bearing bush 16 mounted thereon. The stop-plate and the bush may be formed of nylon and the parts are permanently secured together by spin riveting the end of the boss as at 104.
Patent GB-1276170-A (GB)
Title: Braking system for electrically operated vehicles
IPC: B60L7/24
Filed: 1969-09-22
Abstract: 1276170 Fluid pressure brakes ALFRED TEVES GmbH 22 Sept 1969 [28 Sept 1968] 46642/69 Heading F2F [Also in Division H2] In an electrically-operated vehicle with a rear wheel drive, a brake pedal 12 is actuated to apply hydraulic pressure directly from master cylinder 6 to brake cylinders 9 on the front axle. Pressure is also applied through a twoway valve 13 to an interrupter 5 which disconnects motor 2 from battery 1, an electric controller 4 being set for regeneration, whereby energy is fed back to the battery from the motor through an inductive link under the control of the pedal 12. A braking torque detector 8 responds at a maximum value to open a valve 7 whereby pressure is then applied from cylinder 6 to the brake cylinders 10 at the rear of the vehicle. The detector 8 comprises a pair of hydraulic cylinders withpistons coupled to the body of the motor which turns under the effect of the braking torque, Fig. 3 (not shown). The twoway valve 13 enables operation of the controller 4 and the interrupter 5 by pressure on the pedal 12 despite failure of one of the hydraulic brake circuits. In a modification, the braking system is used on a vehicle with an all-wheel drive. Hydraulic braking is applied to both axles when the electrical braking torque has reached a maximum. Delay in the application of hydraulic braking is obtained by throttling the hydraulic system and by rapid response of the controller 4, Fig. 2 (not shown). Several electric motors may be coupled to the axles or individual wheels.
Patent GB-1141960-A (GB)
Title: 17-imidazolyl androstane derivatives
IPC: C07J75/00
Filed: 1967-10-12
Abstract: 1,141,960. 17-lmidazolyl-androstane derivatives. SOC. FARMACEUTICI ITALIA. 12 Oct., 1967 [12 Oct., 1966], No. 46687/67. Heading C2U. Novel compounds of formula (wherein X-Y is -CH 2 -H 2 - or -CH=  CH-; R is H 2 , H(OH) or O; R 1  is H,F or Cl; R 2  is H, F or CH 3 ; R 3  is H or C 1-10  carboxylic acyl; W is H or OH; Z is H, OH or CH 3 ; or W and Z are together a 16α,17α-isopropylidenedioxy group) are prepared from the corresponding 20-oxo-21-hydroxy-pregnenes by reaction with guanidine or a salt thereof, followed, if required, by N-acylation. The compounds of Formula I are stated to possess anti-inflammatory, antirheumatic and antiallergic activity and may be administered orally, parenterally, or topically in the form of pharmaceutical compositions with a liquid or solid vehicle.
Patent GB-1212000-A (GB)
Title: A container made of concrete with a steel lining
IPC: E04H7/20
Filed: 1969-09-24
Abstract: 1,212,000. High-pressure container. SIEMENS A.G. 24 Sept., 1969 [24 Sept., 1968], No. 47097/69. Heading B1X. A tubular concrete container comprises a body part 2 and a base 1 both lined with steel 5. The body 2 is transversely movable relative to the base 1 when it expands under pressure. The concrete may be prestressed.
Patent GB-1341510-A (GB)
IPC: B65G17/12
Filed: 1971-10-11
Abstract: 1341510 Endless conveyers COMPAGNIE GENERALE D'AUTOMATISME 11 Oct 1971 [12 Oct 1970 28 Jan 1971] 47144/71 Heading B8A An endless conveyer for transferring articles 100-104 from a high level station 3 to a low level station 4 includes a roller chain 8 and trays 31 which, by means of rollers 13 engaging a guide 14, are maintained horizontal while moving from station 3 to station 4. The guide 14 extends above the station 3 such that the trays are inclined as they move through positions 31h- 31 j. The articles, fed by conveyers 5, 15, 16, are controlled by a movable stop 35 operated by detectors 32; 33; the latter respond to movement of the trays 31 as the trays approach the station 3. The chain 8 throughout the length of the conveyer, engages a guide 9. Where no guide is provided for the rollers 13, the trays hang freely from the chain. The conveyer may be adapted to carry articles in the reverse direction.
Patent GB-1092049-A (GB)
Title: Improvements in the heat treating of metal shafts
Inventor: CHANNING CHARLES EDGAR
IPC: C21D9/28
Filed: 1965-11-09
Abstract: In a method for heat treating a band or bands on shafts (i.e solid or hollow elongate bodies of circular cross-section) the workpiece is rotated on pairs of support rollers while being subjected to a heat source and while a restraining force against distortion is applied by means of rollers juxtaposed to the support rollers and axially spaced about the heated shaft length. The shaft may be heated electrically by induction or resistance heating or by means of a flame.
Patent GB-977097-A (GB)
Title: New pyrroline and pyrrolidine derivatives and processes for their production
IPC: C07D207/16
Filed: 1962-12-18
Abstract: The invention comprises compounds of the formula <FORM:0977097/C1/1> (wherein R1 is C1-3 alkoxy, amino, C1-3 alkylamino, piperidino, morpholino, 4-methylpiperazinyl or 4-phenyl-piperazinyl; R2 is hydrogen, hydroxy, or methoxy; R3 is hydrogen, halogen, hydroxy, methoxy or amino; or R2 and R3 together are methylene- or ethylenedioxy; R4 is hydrogen or methoxy; and Y1 and Y2 are both hydrogen or together they represent an additional bond) and salts thereof; and their preparation by esterifying the appropriate 2-phenyl-pyrroline or -pyrrolidine -5- carboxylic acid or halide thereof or a mineral acid salt thereof with an excess of the appropriate alkanol in presence of an acid catalyst, and then if required reacting the ester with ammonia or an alkylamine to give the corresponding amide; and the preparation of the pyrrolidines by catalytically hydrogenating the pyrrolines. Examples are given and a list of salt-forming organic and inorganic acids is provided. Starting materials of the formula <FORM:0977097/C1/2> (wherein X is hydroxy and Y1 and Y2 represent an additional bond) are prepared by reacting acetophenones with paraformaldehyde and their dimethylamine hydrochloride and condensing the product with a dialkyl or diaryl arylaminomalonate to give an acylamino-(b -benzoylethyl)-malonic acid ester and then hydrolysing, cyclizing and decarboxylating this with a mineral acid.
Patent GB-1030937-A (GB)
Title: Radio frequency plasma flame spraying
IPC: C23C4/12
Filed: 1964-11-25
Abstract: <PICT:1030937/C6-C7/1> In a radio frequency plasma flame spraying arrangement, the oscillator circuit is of the tunedgrid, tuned anode type [see Division H3] and the item 14 being sprayed is coupled to the anode circuit via an auxiliary resonant circuit which may comprise a quarter-wave line, 15 or parallel resonant circuit [Fig. 3, not shown].  The anode tank coil 2 is made of concentric copper tubing to allow of water cooling, and terminates in a conically tapered torch lip 3: this is surrounded by an insulating sleeve 4 of polystyrene ending in a nozzle 5. To generate the plasma flame argon is supplied from pressure tank 8 to gas inlet 6 at the rear of sleeve 4.  Attached in front of and above nozzle 5 is a powder feed nozzle 9 to which the powder to be sprayed is fed from feeder 10, utilizing carrier gas, e.g. air, nitrogen or argon, from source 12: the spraying of aluminium and its oxide is referred to. The item 4 to be sprayed may comprise a roughened steel plate.
Patent GB-1028821-A (GB)
Title: Improved deaerator
Inventor: PEARCE LEONARD JOHN
IPC: B01D19/00
Filed: 1962-12-20
Abstract: 1,028,821. Ejectors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 19, 1963 [Dec. 20, 1962], No. 48090/62. Heading F1E. [Also in Division Bl] In a feed water deaerator the deaeration tank a and ejector c are within the collecting tank b. The ejector has a needle valve d automatically adjusted by means of a float in the tank.
Patent GB-1315383-A (GB)
Title: Electrical capacitor from non-woven polypropylene structures
IPC: H01G4/18
Filed: 1970-05-29
Abstract: 1315383 Capacitors ESSO RESEARCH & ENG CO 29 May 1970 [23 June 1969] 48143/72 Divided out of 1315382 Heading H1M An electric capacitor comprises at least two metal plates separated by autogenously bonded non-woven polypropylene fabric having a porosity (i.e. void space) of less than 35% and a thickness between 0À4 and 2 mil. The fabric is impregnated with dielectric fluids such as 1, 2 dichlorobenzene or polychlorinated biphenyls. Alternatively the dielectric material may comprise a layer of the polypropylene fabric plus a layer of cellulosic electrical paper. In the preferred embodiment the polypropylene fabric comprises 2-5 micron diameter fibres and has one surface more permeable than the other. Production of the fabric is described in Specification 1,315,382.
Patent GB-1025026-A (GB)
Title: Expendable thermocouple lance
IPC: C21D11/00
Filed: 1962-12-20
Abstract: 1,025,026. Thermo-electric devices. ELECTRO-NITE Inc. Dec. 20, 1962 [Dec. 20, 1961], No. 48222/62. Heading H1K. [Also in Division H2] An immersion thermocouple lance, intended to be used only once, comprises two short thermocouple elements joined to form a thermo - junction 26, Fig. 1, within a U- shaped protector tube 28, the arms of which are supported by a ceramic cement 34 within one end of a cardboard tube 12, a pair of wire leads, each connected at one end to one of the thermo-couple elements and terminating at its other end at a flexible contact holder 36 with the ends of said leads exposed and radially spaced apart. A second, thin - walled cardboard tube 70 having a perforated end closure 74, is fitted over the first, and a third tube 76, which is a sliding fit over it, may be slid downwards to hold the lance on a holder 62. The latter carries, in a plastics holder 52, a central pin 58 and a cylindrical contact member 54 which engage the lead wires 14, 18 respectively, irrespective of the rotational position of the lance (see Division H2).
Patent GB-1488750-A (GB)
Title: Arrangement for controlling the engagement of a chain with a chain sheave such as a cable lifter or wildcat
IPC: F16G13/00
Filed: 1975-11-24
Abstract: 1488750 Chains PUSNES MEKANISKE VERKSTED AS 24 Nov 1975 [25 Nov 1974] 48233/75 Heading F2Q Chain links 9, 9<SP>1</SP> of asymmetric shape, having a concave side 14 and a convex side 15 may be substituted for oral links at certain positions in a hauling chain, in the vicinity of a coupling link 3 at which a rope is attached. When the rope and chain are drawn over a pocket-type chain wheel 1 in the direction of arrow 5, Fig. 3, and the coupling link 3 enters a pocket 6, the random orientation of the chain may be such that its first link 4 rides in an unsynchronized manner "horizontally" over teeth in the chain wheel instead of passing "vertically" between the teeth. Each asymmetric link 9 then offers its concave side to one tooth and its convex side engages the opposing tooth, thereby twisting the orientation of the chain links about the longitudinal axis so that a synchronized relationship between chain links and wheel teeth and pockets, becomes restored. The twisting movement is facilitated by making the link apertures 16 of an internal radius greater than that of normal links, and by shaping the link 9 in transverse cross-section with a thickness greater towards the convex side 15 than that at the concave side 14. The action may also be enhanced by making the asymmetric links 9, 9<SP>1</SP> of a length greater than that of a normal oval link, with the immediately adjacent oval links 4, 4<SP>1</SP>, 10 and 11 being made correspondingly shorter, such that the total assembled length including links 4 and 11 is approximately equal to that of a string of the same number of normal links.
Patent GB-1501230-A (GB)
Title: Air/fuel ratio control system in internal combustion engine
IPC: F02D35/00
Filed: 1975-11-25
Abstract: 1501230 Spray carburetters NISSAN MOTOR CO Ltd 25 Nov 1975 [2 Dec 1974 28 Dec 1974] 48347/75 Heading F1H [Also in Division G3] The air/fuel ratio supplied to an I.C. engine having a carburetter is kept constant by supplying additional air and/or fuel downstream of a throttle valve and controlled by respective electromagnetic valves in response to an exhaust gas sensor. The sensor output, preferably related to O 2 , is compared with a reference to produce a positive or negative signal which is amplified in a PI controller and combined with a sawtooth waveform to produce variable width pulses for energizing the valve in an on/off manner. As shown, additional fuel is supplied via tube 26, the amount being controlled both by electromagnetic valve 28 and by air bleed 34, 36 which is mechanically linked to the throttle, thereby compensating for induction vacuum. In Fig. 4 (not shown) this throttle link is replaced by a vacuum operated diaphragm. In Fig. 5 (not shown) a similar arrangement provides additional air (instead of fuel) from air filter 16, the diaphragm operated valve being placed upstream of the electromagnetic valve, and in Fig. 8 (not shown) the two arrangements are combined, using separate tubes and valves for fuel and air respectively, energized in opposite senses by common pulses from a single controller.