baber/WOPTO huggingface dataset:
Patent GB-1038879-A (GB)
Title: Production of chemical compounds and of epitaxial films formed therefrom
IPC: C30B25/02
Filed: 1963-07-12
Abstract: A crystalline compound of an element from Group IIIB of the Periodic System of Mendeleef with an element from Group VB (an AIIIBV compound) is produced by contacting a IIIB element with a hydrogen halide at a temperature at which reaction occurs and admixing the resulting gaseous product with a volatilized Group VB element or compound in the absence of any oxidizing gas, gaseous hydrogen being present when the volatile VB compound is a halide.  Suitable VB compounds are the halides, hydrides or alkyl compounds, particularly the chloride, bromide or iodide.  The following compounds may be produced by the above process in the temperature ranges indicated:- .BP.700-1200 ( DEG C.) .InP.500-1000 .GaP.700-1200 .GaAs.600-1200 .InAs.500-900 .AlP.500-1000 .AlAs.700-1200 .InSb.400-500 .GaSb.500-650 .AlSb.700-1000 .BN.800-1200 .AlN.600-1200 The product may be deposited as an epitaxial film on a compatible substrate of a cubic crystalline material which is an AIIIBV compound, a Group I-Group VIIB compound or a Group IIB-Group VIB compound or on to silicon or germanium, which crystalline material is preferably orientated with its (100) crystallographic face (Millerian indices) exposed to the depositing compound (see Copending Application No. 27678/63 (Serial No.  1,038,946)). Mixed binary crystals, or ternary and quaternary compounds AIII(B1V)x(B11V)1-x, (A1III)y(A11III)1-yBV an (A1III)y(A11III)1-y (B1V)x(B11V)1-x may also be prepared (0<x, y<1), e.g. InAsxP(1-x), GayAl(1-y)P. The epitaxial film and/or the substrate may be "doped" with Be, Mg, Zn, Cd or Hg to produce p-type or with Sn, SnCl4, S, Se or Te to produce n-type conductivity. Electronic devices containing a plurality of epitaxial layers of differing conductivity may thus be built up by successive deposition. Numerous examples are given.
Patent GB-382401-A (GB)
Title: Improvements in sachets for use in permanent hair waving processes
IPC: A45D7/04
Filed: 1931-10-06
Abstract: 382,401. Hair-waving appliances. FRANCIS, H., 32, Jameson Street, Hull. Oct. 6, 1931, No. 27684. [Class 131.] In a sachet for use in permanent hair waving, the bag or envelope adapted to contain the usual impregnated pad or pads is provided with a number of slits to allow moisture from the pad to reach those portions of the hair about which it is wound, which slits are arranged in groups. As shown, the sachet comprises a sheet of paper 1 folded upwards at 2 to partially enclose a sheet 4 of impervious material, the sheet being provided at one side with a bag or envelope 5 adapted to contain a pad or pads impregnated with borax or other substance, the front of the bag being provided with groups of slits 7. The envelope 5 is preferably formed by folding an extension of the sheet 1. The parts are secured together by a line of stitching 6. The sachet is wound round the tress in the form of a cylinder with its axis normal to the line 2. Specification 374,719 is referred to.
Patent GB-889377-A (GB)
Title: Tapeworm control agents
IPC: A61K31/16
Filed: 1960-08-10
Abstract: A tapeworm control agent comprises 2-hydroxy - 5,21 - dichloro - 41 - nitrobenzanilide and a solid pharmaceutical carrier or water containing an emulsifying agent. The preparation may be in the form of tablet, pill, powder or suspension.  The tablet contains 0.1 to 0.5 grm. of the active ingredient and the pill 0.1 to 0.3 grm. Liquid suspensions and granules contain 20 to 200 mg. per c.c. and per gram respectively of the active ingredient.
Patent GB-599412-A (GB)
Title: Orientation system
IPC: G01C19/00
Filed: 1945-10-22
Abstract: 599,412. Electric indicating systems. BENDIX AVIATION CORPORATION. Oct. 22, 1945, No. 27813. Convention date, Nov. 3, 1944. [Class 40 (i)] [Also in Group XX] The precession torque of a rate-of-turn gyro 10 is balanced by the torque due to the reaction on the movable primary of a transformer 14, the secondary of which feeds an integrating instrument with a pointer 46. The speed of this instrument is proportional to the rate of turn and the pointer thus reads the amount of turn or the heading of the craft on which the device is mounted. The transformer may constitute the transmitter of a selsyn system, the receiver of which indicates the instantaneous rate of turn. The heading indicator may be subject also to control by an inductor compass of the saturable inductance type which controls the direction of the resultant field in an instrument 67 of which the rotor is coupled to the heading indicator. When the direction of the rotor is incorrect in relation to that of the earth's field, it receives an induced voltage. This after frequency halving, amplification and phase correction in a device 69 acts on the driving coil 35 of the integrating instrument which then drives the pointer until the input to coil 68 is nullified.
Patent GB-1469969-A (GB)
Title: Pulse initiator circuits
IPC: G01R21/00
Filed: 1974-06-24
Abstract: 1469969 Metering electric energy SANGAMO ELECTRIC CO 24 June 1974 [9 July 1973] 27924/74 Heading G1U In an arrangement for transmitting the indications of an electric energy consumption meter to a remote location e.g. for demand monitoring by a utility company, a pulse generator provides signals to operate a recorder including a power supply and the circuit of the generator is arranged to drive a recorder having any kind of power supply i.e. D.C. of either polarity, or pulsed, rectified or continuous A.C. A detector is mounted in the meter, comprising two L.E.D.'s 33, 34 illuminating two phototransistors A, B through diametrically opposed holes (41, 100) in a disc geared to the meter movement Fig. 6 (not shown). Thus as the disc rotates, phototransistors A, B are alternately illuminated and thus reduced to a low impedance. A coil 20 wound on the meter voltage core provides a supply which is rectified via one diode of the bridge rectifier 24 to energize the L.E.D.'s, and full wave rectified by the bridge 24 to power the pulse generating circuits via a voltage stabilizer 36, 38, 40, 42. The phototransistors A, B control the state of a bi-stable 14 including transistors 52, 60 which are respectively turned on by the respective phototransistors. The state of the bi-stable, i.e. either 52 or 60 conducting, is detected by output driver transistors 55, 57 which turn on transistors 80 or 90 accordingly. The output leads Y, K, Z of the generator comprise one K, connected to one terminal of bridge rectifiers in each output section and two Y, Z connected to only one rectifier each. Thus for each section, a current path exists from one recorder power supply terminal through one recorder load, L1 or L2, through a bridge rectifier diode, through a transistor, 80 or 90, through a further bridge rectifier diode to the other terminal of the recorder supply. It can be seen that the provision of the bridge rectifier allows current flow in either direction along these paths, thereby allowing any form of recorder power supply. To connect the two power supplies, while ensuring this flexible working, the generator circuit reference point R is floating, and its potential is determined by the voltage on the lead K by means of whichever of transistors 80 or 90 is conducting. The low side of the generator power supply is connected to this reference point R to ensure correct relative voltage levels in the bi-stable 14 and driver stages.
Patent GB-801691-A (GB)
Title: Improvements relating to the removal of condensible impurity from hydrogen
IPC: F25J5/00
Filed: 1955-09-30
Abstract: 801,691. Cold separation of gas mixtures. STAMICARBON N.V. Sept. 30, 1955 [Oct. 1, 1954], No. 27940/55. Class 8(2). In a process for removing gaseous impurities such as nitrogen, carbon monoxide and argon from amide hydrogen, e.g., that generated by the water gas reaction and comprising preliminary cooling so as to liquefy and separate the greater part of such impurities followed by condensation of the residual impurities in a regenerator or reversing heat exchanger which is afterwards scavenged by a reverse flow of an equal amount of colder purified hydrogen at a higher pressure, e.g., from a deuterium separating apparatus, the temperatures of the partly purified hydrogen and of the flushing hydrogen are such that at their respective pressures the maximum possible concentration of vaporized impurity in the flushing hydrogen is higher at any point in the regenerator or exchanger than the maximum concentration at that point in the partly purified hydrogen during the purification period suitable temperatures of the partly purified hydrogen and the flushing hydrogen are 51‹k and 40‹k respectively at pressures of 1À3 and 5À0 atmospheres at which values the maximum possible nitrogen concentration in the flushing hydrogen is 1000 times that possible in the partly purified hydrogen. Specification 799, 351 is referred to.
Patent GB-230514-A (GB)
Title: Improvements relating to motor driven rotary tilling machines
IPC: A01B33/08
Filed: 1924-08-07
Abstract: 230,514. Foot, E. H. W. Aug. 7, 1924. Rotary tool cultivators; travelling and propelling gear; adjusting and lifting parts; guards.-In a motordriven rotary tilling- machine in which the tine-carrying shaft is divided at the centre and driven at both ends by bevel gearing actuated from a countershaft arranged parallel to the tine -,-,haft and driven from an engine-driven shaft through a universal joint, the engine-driven shaft is supported in a casing containing the change-speed and reversing gear for the engine, and two coaxial shafts are provided for driving the tractor wheels and the shaft carrying the universal joint, respectively. The tine shaft is provided with lifting-apparatus actuated by fluid pressure and with means for supporting it parallel to the ground and for regulating the depth of work. The main wheels 8 are driven through four-speed gearing 5, 6, and a clutch. A shaft 10 within the shaft 1 is connected by a clutch to the engine shaft and by toothed gearing 11, 12 and a clutch 16 to a shaft 13 supported in the gear casing 15 and universally jointed to a shaft 18 that is connected by bevel gearing with the countershaft 23. This gearing allows the tine shaft to be driven independently of the tractor wheels. A two-speed drive may be provided for the shaft 13. The shaft 18 is mounted in sleeves secured within a casing 25 and a, bracket 33 connected by pins 34 to a bracket 35 on the gear casing 15. The casting 25 is attached to a transverse frame 37, and is connected bv a link 57 to the main frame 58. The shafts 18 and 23 are provided with thrust and other ball bearings. The divided tinecarrying shaft is hollow and provided with a core. Splines on it engage grooves in end axles driven from the shaft 23 by bevel gearing and shafts 44, the division of the shaft allowing for slight irregularities in the gearing. The tilling- apparatus may be raised by turning it about the shaft 23 by means of a rope 59 passing round pulleys 62, 64, 68. The pulleys 64 are mounted in a looped member 65 connected to or integral with a plunger 70 movable in a cylinder 69 under the pressure of oil admitted through a pipe 71. The pressure may be produced by the clutchoperating pump described in Specification 228,626, [Class 79 (ii), Motor vehicles, Driving &c.]. A nut 73 on a threaded rod limits the return movement of the plunger 70 and thus regulates the depth to which the tilling-apparatus may descend. A shield 74 is adjustably secured above the tines bv an arm 75 and a pin inserted in holes 76. Flat skids 77 are provided to keep the tine shaft parallel with the ground. They are linked by rods 78, 79 to the frame 37 and are raised or lowered by screws 80. The steering-devices may be as described in Specification 228,626 referred to above and the tines may be formed and mounted as described in Specification 231,045.
Patent GB-665957-A (GB)
Title: Improvements relating to elevators
IPC: B65G15/40
Filed: 1949-11-04
Abstract: 665,957. Endless conveyers. LEGG, Ltd., R., and LEGG, F. S. Nov. 6, 1950. [Nov. 4, 1949] No. 28318/49. Class 78 (i). An elevator for tobacco or other solid material in fragmentary form, comprises a normally flat endless band which is formed into a closed tube with free overlapping edges while travelling in a straight line from a supporting roller with a horizontal axis and passes as a tube by way of a curved guide to a vertical or inclined guide which surrounds it closely, the band' receiving the material to be conveyed before being formed into a tube and opening out to the flat shape again to discharge the material after leaving the vertical or inclined guide. In the embodiment shown in which tobacco is conveyed from a trough 2 and delivered into a bin 4 on a floor above, the elevator comprises a band 6 which passes over rollers 8 which are mounted at progressively increasing angles to the horizontal so that the band is formed into a travelling trough which progressively deepens. Eventually on reaching a guide 21 it becomes a closed tube with the edges overlapping, Fig. 5, and these edges are held together by V-shaped members 10 forming the guide. These members 10 are carried by the links 12 of an endless chain running on sprockets 14, 16 and a rail 18, and travel with the band, being frictionally driven by it. Thereafter, the band in the form of a tube is led to a guide comprising a tubular member 22. After leaving this guide it opens out and the tobacco contained in it falls on to a shoot 26 leading to the bin 4. Any tobacco adhering to the belt is cleaned off by an adjustable rotary brush 28. The band eventually passes over a driving drum 24 driven by a motor 30. Fig. 6 shows a modified guide 22 comprising four rollers 34. A winnower 9 in the trough 2 adjusts the feed to the elevator.
Patent GB-535786-A (GB)
Title: Improvements in or relating to telephone subsets
IPC: H04M1/02
Filed: 1939-10-20
Abstract: 535,786. Telephone sets. STANDARD TELEPHONES & CABLES, Ltd. (Nys, L. J. G., and Preu d'Homme, E. H .L. J.) Oct. 20, 1939, No. 28335. [Class 40 (iv)] A vertical pillar 6 extending from the base plate supports the cradle plunger 40 and the contacts 47 controlled thereby. The plunger 40 moves in bushes 35, 42, the upper part having a cam portion 61 engaged by the contact-operating roller 45. The middle part of the pillar is U-shaped in section as shown, a dust cover 58 protecting the contacts 47. The upper part 37 of the pillar has a bearing member over which fits a circular recess 57 on the inside of the cover surrounding the plunger aperture. The upper end of the plunger 40 has lateral extensions 51 engaging slots 36 in the pillar to prevent rotation of the plunger. The pillar is moulded integrally with the terminal block. The dial is mounted in a recess in the cover as in Specification 535,787 and is interconnected with the other components by plug and jack. contacts on the cover and base as described in Specification 535,788. Specification 511,119 also is referred to.
Patent GB-840659-A (GB)
Title: Process for the preparation of cyclopentanophenanthrene derivatives
IPC: C07J75/00
Filed: 1956-09-17
Abstract: Hemi- or mono-esters of pregnan-21-ol-3,20-dione with saturated or aromatic hydrocarbon polycarboxylic acids containing from 4 to 8 carbon atoms are prepared by reacting desoxycorticosterone with a corresponding acylating agent to form the corresponding hemi- (or mono-) ester of desoxycorticosterone, and hydrogenating it in the presence of a hydrogenation catalyst in an aqueous alkaline medium. Specified acids are succinic, citric, glutaric, and phthalic, and the preferred catalyst palladium supported on charcoal or calcium carbonate.  In examples desoxycorticosterone is acylated with succinic anhydride/pyridine and the 21-hemisuccinate hydrogenated to pregnan-21-ol-3,20-dione hemisuccinate.  Specification 804,521 is referred to.
Patent GB-1431279-A (GB)
Title: Thiazole derivatives and their use as cardiovascular agents
IPC: C07D277/34
Filed: 1973-06-14
Abstract: 1431279 Thiazole derivatives and their use as cardiovascular agents SYNTEX CORP 14 June 1973 [10 July 1972] 28447/73 Heading C2C The invention comprises compounds of formula wherein R<SP>1</SP> and R<SP>2</SP> are independently selected from hydrogen, lower alkyl, C 3-7  cycloalkyl, aryl, arylalkyl, lower alkylaryl, hydroxy lower alkyl, (lower alkoxy) lower alkyl, adamantyl, N- heterocyclic ring (the term N-heterocycle refers to both saturated and unsaturated heterocyclic having 5 to 7 ring atoms, one of which is nitrogen and which can optionally also contain a second heterocyclic ring atom selected from the group of N, S and O, these rings may be substituted by lower alkyl, hydroxy lower alkyl and halo groups), and the group wherein R<SP>6</SP> and R<SP>7</SP> are independently hydrogen or lower alkyl, and n is an integer of from 2 to 6, or R<SP>1</SP> and R<SP>2</SP> together with the nitrogen atom to which they are joined form a nitrogen heterocycle as defined above. (The term "lower alkyl" refers to C 1-6  straight or branched-chain alkyl groups; "ary" refers to one aromatic ring of up to 10 carbon atoms; "alkylaryl" refers to a phenyl ring substituted with a C 1-10  alkyl group, "arylalkyl" refers to a (phenyl or substituted phenyl) substituted alkyl group. These compounds may be obtained by conducting the following steps: (a) treating glycerol acetonide with 4-Cl or Br-thiazole in the presence of an alkali metal hydride, thereby affording 3- (thiazol - 4 - oxy) - 1,2 - propanediol 1,2 - acetonide; (b) hydrolysing the product of step (a) with an acid thereby affording 3-(thiazol-4-oxy)-1,2- propanediol; (c) treating the product of step (b) with an alkyl or phenyl substituted sulphonyl chloride or bromide thereby affording a product of formula wherein Y<SP>1</SP> is alkyl or phenyl; (d) treating the product of step (c) with a strong base, thereby affording the corresponding 3-(thiazol-4-oxy)- 1,2-epoxypropane product; and, (e) treating the product of step (d) with a compound containing the desired -NR<SP>1</SP>R<SP>2</SP> moiety, wherein R<SP>1</SP> and R<SP>2</SP> are as defined above, thereby affording the compound according to the invention. These compounds may also be prepared by an alternative process which can be represented by the following reaction equations The invention also comprises a pharmaceutical composition, reported to be suitable for treating heart failure, which contains as an active ingredient a pharmaceutically acceptable salt of a compound according to the invention together with an acceptable carrier.
Patent GB-332456-A (GB)
Title: Improvements in and relating to the manufacture of tablets of chocolate or the like
IPC: A23G3/20
Filed: 1929-09-19
Abstract: 332,456. S÷hne Akt.-Ges., D. Aug. 23, 1929, [Convention date]. Moulding confectionery; depositing-machines.-In making tablets of chocolate or the like independent bodies are formed in a mould, and after these bodies have hardened a separate mass is poured upon them in the same mould in such a way that it connects the independent bodies at their bases. The method is described as applied to the manufacture of a tablet which can be divided into sections each of which has a representation of a mocha bean standing out therefrom. A mould n, Fig. 3, having recesses u, in the shape of a bean, in the base and a rim v. is used. The mould is placed on a plate m and held thereby to a perforated plate f forming the bottom of a trough e containing material for the beans. The perforations g correspond to the recesses of the mould and the recesses are filled individually when a plate h with wooden cores k is forced downwards by a screwed spindle i. The columns passing through the perforations are severed by suction when the plate is slightly raised. The plate m is supported on a bent arm p<1> of a lever p with a handle q and is held in position bv a counterweight s. After removal from the plate m the material in the mould is allowed to harden and a second mass is then poured in to the depth of the rim v.
Patent GB-1077624-A (GB)
Title: Improvements in or relating to composite woven fabrics
Inventor: SWALLOW JOHN EDWARD
IPC: D03D15/00
Filed: 1964-07-10
Abstract: A fabric is woven from groups of polyester yarns alternating with monofilament or multi-filament stainless steel in both warp and weft. The fabric is heat-treated to shrink the polyester yarns and thereby crimp the wires.
Patent GB-355551-A (GB)
Title: Improvements relating to dental hand-pieces
IPC: A61C1/00
Filed: 1930-09-24
Abstract: 355,551. Dental engines. CHAYES DENTAL INSTRUMENT CORPORATION, 332, East 28th Street, New York, U.S.A. Sept. 24, 1930, No. 28554. Convention date, Oct. 24, 1929. [Class 81 (ii).] The elbow joint 14 of the support for a corddriven dental handpiece 10 comprises arms 12, 13 pivoted to a connecting member 17 which carries a shaft 21 provided, at each side of the elbow joint, with journal or bearing portions 22 which are long enough to allow substantial lateral movement of the pulleys 24 to accommodate varying belt positions. The flattened ends of the arms 12, 13 are located between side-plates 16 of the connecting member 17 and their pivotal movement is limited by stops. Lock washers 25 having lugs engaging slots in the ends of the hollow shaft 21 are held in position by caps 27 having stems screwing into the ends of the shaft. A lubricating nipple on the member 17 communicates with oil holes in the shaft within the pulley bores and the pulleys are formed with undercut oil-retaining grooves 36.
Patent GB-288499-A (GB)
Title: Process for the manufacture of plates for copper oxide rectifiers
IPC: H01L21/16
Filed: 1927-10-28
Abstract: 288,499. Siemens - Schuckertwerke Akt.-Ges., and Duhme, E. Oct. 28, 1927. Coating.-The oxide coating on copper plates for use in copper oxide rectifiers is produced by heating the plates to temperatures above 1040‹ C. (e.g. 1053‹ C. to 1060‹ C.) and plunging them into warm water (e.g. water at a temperature of 40‹ C. to 60‹ C. in the case of plates of 3 to 5 cm. in diameter). The plates are kept in motion in the water, or the water is stirred during cooling.
Patent GB-1318555-A (GB)
Title: Apparatus for connecting a loom heald shaft to heald shaft cord
IPC: D03C9/06
Filed: 1970-06-15
Abstract: 1318555 Connections to heald frames STAUBLI & CO Gebr 15 June 1970 [13 June 1969] 28765/70 Heading DIE  The chains 6 from a shedding motion are connected to one arm of bell crank levers 10 which are pivoted on a beam 3 attached to a heald shaft 1, the other arms of levers 10 having a wedge shaped cranked end 13 fitting into wedged shaped recesses 14 in the heald frame such that any play that develops due to wear is automatically taken up.
Patent GB-680018-A (GB)
Title: Improvements in stoves
IPC: F24B5/02
Filed: 1949-11-10
Abstract: 680,018. Stoves. BERRY, W. A., (trading as BERRY, B). Feb. 7, 1951 [Nov. 10, 1949], No. 28778/49. Class 126. A stove comprises a cylindrical chamber closed at both ends housing a semi-spherical or cylindrical fire-box suspended from the top of the chamber and a number of vertical smoke tubes welded into apertures in the top of the chamber and communicating with a top heat-box from which a flue leads to the outer atmosphere. A cylindrical fire-box A with apertures a<SP>4</SP> at the lower end for combustion air, an unperforated zone and further apertures a<SP>6</SP> near the top so that combustion is completed, is suspended by chains a from a rod A' extending across a cylindrical casing B. The casing B is raised from the floor, and has a sliding door and air admission apertures. Smoke tubes C are welded into apertures in the top of the casing B and enter a top heat box D round its periphery. The products of combustion escape through a flue D<SP>1</SP> connected to a central aperture in the upper side of box D. The rod A<SP>1</SP> may be provided with a handle so that the position of the fire-box A in the casing can be varied. A stoking aperture in the top of casing B may be closed by a water container, and the top of the chamber may form a hot plate.