baber/WOPTO huggingface dataset:
Patent GB-1347721-A (GB)
Title: Method of fracturing subterranean formations using oil-in-water  emulsions
IPC: C09K8/64
Filed: 1971-07-21
Abstract: 1347721 Fracturing ESSO PRODUCTION RESEARCH CO 21 July 1971 [30 Sept 1970 24 May 1971] 34162/71 Heading E1F A fracturing fluid comprises an oil-in-water emulsion of 50 to 80 per cent hydrocarbon and a gum which imparts a viscosity of 10 to 200 centipoises and a shear rate of 511 reciprocal seconds to the aqueous phase. Natural and synthetic gums are exemplified.
Patent GB-893233-A (GB)
Title: Improvements relating to the surface heating of metals
Inventor: LANCASTER JOHN KEITH
IPC: C22F3/00
Filed: 1958-10-24
Abstract: 893,233. Surface hardening. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 16, 1959 [Oct. 24, 1958], No. 34170/58. Class 72. A process for treating the surface of a metallic article comprises arranging the object as one of two electrodes in an electrolytic bath containing an aqueous solution of a salt as the electrolyte and discharging a capacitor with such polarity that the article is the cathode, the magnitude of the charge being such that an electric discharge occurs across a gas or vapour envelope on the surface. As shown, the article 3 may be immersed in a 10% solution of sodium carbonate in a vessel 1, which is also provided with an electrode 9, and be connected to one plate 5 of a variable capacitor 6, the other plate of the capacitor being connected through a switch 8 to the electrode 9. The capacitor may be charged from a direct current source and discharged through the electrolyte. A thin gas or vapour envelope 13 is formed on the surface of the article and a high current discharge is produced across the envelope. A continuous direct current may be applied across the electrodes to provide a continuous envelope or the electrolyte may be heated to a temperature below the boiling point. Specifications 893,231 and 893,232 are referred to.
Patent GB-1112445-A (GB)
Title: A method of continuously producing fibres and filaments from linear polyesters and apparatus for performing the same
IPC: D01D5/08
Filed: 1965-08-11
Abstract: 1,112,445. Controlling continuous polymerization melt-spinning processes for polyesters. CHEMISCHE WERKE HœLS A.G. 11 Aug., 1965 [12 Aug., 1964], No. 34307/65. Heading B5B. [Also in Division G3] In a continuous polyester polymerization melt-spinning process the throughput and residence time in the polymerization reactor are maintained constant, thus preventing undesired variations in intrinsic viscosity of the product, and variations in throughput of the spinneret assemblies that might occur, e.g. by taking some of them out of commission, are avoided by varying the rate of extrusion through the individual spinnerets. Constant denier is maintained by varying the draw-off rate in a manner corresponding to the extrusion rate. The temperature of the cooling air is also varied in accordance with the extrusion and draw-off rate. Automatic control may be used. Residence time in the reactor system 1, 2, 3 is determined by the level of melt in the final reactor 3. This is sensed at 22 and a signal sent to means for adjusting the ratio of the drive 26 between a synchronous motor 25 and a generator 27 supplying motors driving the pumps 11 for the spinnerets 13 of which four sets of four may be in use. The drive is also taken through a variable gear 28 (which determines the denier of the extended filament) to generator 29 supplying motors driving the draw-off rolls 15. Increase in polymer level in reactor 3, arising, e.g. from shutting down a set of spinnerets, increases the extrusion and draw-off rates, thus tending to restore the level to its former value. The temperature of the cooling air supplied at 16 to the shaft 14 is controlled automatically at 20 by a valve in the steam line 17 to the heat exchanger 18. Examples are given of extruding a polymer from terephthalic acid and 1,4- dimethylol viscosity from the desired value of 0À82 with and without the control system of the invention.
Patent GB-1486832-A (GB)
Title: Prostanoic acid derivatives
IPC: A61K31/085
Filed: 1974-08-05
Abstract: 1486832 Compositions containing prostaglandins IMPERIAL CHEMICAL INDUSTRIES Ltd 7 July 1975 [5 Aug 1974] 34334/74 Heading A5B [Also in Divisions C2 and C3] Pharmaceutically and veterinary compositions in a form suitable for oral, parenteral, rectal, vaginal administration or for inhalation, contain prostaglandins of the formula I wherein either R' is carboxy hydroxymethyl or (C 1-10  alkoxy) carbonyl, R<SP>4</SP> is OH and R<SP>5</SP> is H 1  or R<SP>1</SP> is carboxy or (C 1-10  alkoxy) carbonyl and R<SP>4</SP> and R<SP>5</SP> together form an oxo radical; R<SP>2</SP> is OH or C 1-4  alkoxy; Y is ethylene or trans-vinylene, either A is ethylene or vinylene and X is C 1-6  alkylidene-oxy wherein the alkylidene is bonded to CHR and the oxygen is bonded to R<SP>3</SP>, or C 1-6  alkylidene, or A is vinylene and X is a direct bond; and R<SP>3</SP> is phenyl or naphthyl optionally substituted by one or two halogen atoms, NO2, OH, CF 3 , phenyl, C 1-5  alkyl, di(C 1-5  alkyl) amino, C 2-5  alkenyl or C 1-5  alkoxy radicals, or for these compounds wherein R' is carboxy the pharmaceutically or veterinary acceptable salts thereof together with pharmaceutically or veterinarily acceptable diluents or carriers. The compounds may be used in combination, or concurrently with uterine stimulants, for example, oxytosin, or gonadotrophins, for example pregnant mare serum gonadotrophin or human chorionic gonadotrophin. The compounds are used in the induction of labour, the control of the oestrus cycle, as contraceptives, as hypotensives, for the relief of bronchospasm, or as inhibitors of gastric secretion or blood platelet aggregation.
Patent GB-606699-A (GB)
Title: Improvements in or relating to reamers or boring bars
IPC: B23B29/034
Filed: 1945-12-19
Abstract: 606,699. Reamers; boring-bars. WELSBY, S., and WELSBY, J. S. Dec. 19, 1945, No. 34367. [Class 83 (iii)] The head of a reamer or boring-bar is made in two parts a<SP>2</SP>, a<SP>3</SP>, separated by a plane parallel to the axis of the tool, the larger part a<SP>2</SP> having a transverse channel c for a pair of floating cutters d which are adjusted by right-and-left handed screws e<SP>1</SP> operated by a worm n<SP>1</SP> and pinion e. The tools are under the influence of springs h anchored to pins j in the head. The worm is provided with scale markings and the parts of the head are secured by screws b. The cutters have two or more cutting edges, which may be inclined.
Patent GB-1277333-A (GB)
Title: Semiconductor devices
Inventor: OAKES JAMES ARTHUR
IPC: H01L23/482
Filed: 1970-07-16
Abstract: 1277333 Semi-conductor devices GENERAL MOTORS CORP 16 July 1970 [31 July 1969] 34517/70 Heading H1K A silicon planar PNP transistor comprises a P-type wafer 12 having one surface 14 with a refractory oxide coating overlain by aluminium contacts 20, 22. Within the wafer are surface extending conductivity regions; an N-type base 24; a P-type emitter 26 and a P+ expanded guard ring 28; the collector being the remainder of the wafer to define a collector base PN junction 32 and an emitter base PN junction 34. The base 24 is surrounded by a narrow collector border 36, and guard ring 28 surrounds base 24 non-contiguously and border 36 contiguously; extending to the periphery of surface 14 with inserted semi-circular collector islands 38, 40 spacedly adjacent from opposite sides of border 36. A thick layer 42 of silicon oxide overlays islands 38, 40 and border 36 while a thin layer 44 of oxide overlays guard ring 28 and a portion of emitter 26, and an intermediate thickness oxide coating overlap the base-emitter junction. Contacts 20, 22 are electrically connected to emitter 26 and base 24 and comprise bonding pads 48, 50 overlying islands 38, 40 with inwardly-extending interdigitated electrodes 49, 51 engaging base and emitter through openings of the oxide, and wire connectors 52, 54 are pressure bonded to pads 48, 50. In manufacture, surface 12 is cleaned and oxidized, a window etched therein for N-type diffusion to form base 24; reoxidized and etched to form a further smaller window overlying the base for P-type diffusion for the emitter 26. Oxide is also removed from the surface from border 32 to the perimeter except for the overlying islands 38, 40 to allow diffusion to form P + guard ring 28, followed by further oxidation. Openings in the oxide overlying emitter 26 and base 24 are etched for contacts, and aluminium contacts 20, 22 evaporated on with interdigitated electrodes connecting to base and emitter.
Patent GB-619029-A (GB)
Title: Apparatus for folding sheets
IPC: B65H45/04
Filed: 1946-11-21
Abstract: 619,029. Folding sheets. PAYNE, H. G. Nov. 21, 1946, No. 34583. [Class 42(ii)] An apparatus for folding sheets comprises a table for receiving the folded sheet, releasable clamping means adapted to engage one edge of a sheet and to travel in a closed path, first forwardly and upwardly to bring the depending edge of the sheet above the table, then downwardly in a zig-zag path to deposit it in folds thereon, and finally rearwardly to the starting position, means being provided to actuate the clamping device to release the sheet near the bottom of its downward path. The clamping device is attached between two chains 1, moving in similar paths over sprocket-wheels 2 ... 11, the sprocket-wheels 3 being mounted on a common driven shaft. The clamping device comprises a bar 14, weighted at 15, and having hinged thereon a flap 16, which is urged to open position by a spring 19; when closed by means of the handle 25 the flap 16 co-operates with elliptical springs 17 in recesses 18 in the bar 14, and is retained by spring- loaded catches 22. The sheet is attached to the clamping device as the latter passes over the sprocket-wheels 2, and after folding, the sheet is released by the catches 22 engaging an abutment 24. The table 12 may be spring-mounted, so that it lowers under the weight of the sheet.
Patent GB-1060918-A (GB)
Title: Improvements in and relating to calendars and other like indicators
Inventor: BENNET WALTER SINCLAIR
IPC: B42D5/04
Filed: 1965-08-12
Abstract: 1,060,918. Indicators. " AT-A-GLANCE " CALENDAR CO. Ltd. Aug. 12, 1965, No. 34602/65. Heading G5C. [Also in Division G3] An arrangement to facilitate the reading off of information from a printed sheet such as a calendar 9 (Fig. 1) comprises a flat strip 13 of transparent flexible material on which is mounted a movable indicator frame 14, and a carrier 16 of synthetic resin or metal or wood which is movable along or parallel to an edge of the sheet and to which the strip is attached. The strip 13 is provided with a hooked end portion (Fig. 4) which fits into a recess 18 in the carrier 16 and the recess is provided with a projection 25 which abuts the terminating edge of the hooked portion. The carrier is so mounted on the edge of the sheet or on a guide parallel with the edge of the sheet that the strip 13 covers the front of the sheet while the portion of the recess having the projection 25 thereon abuts the back of the sheet. The carrier is further provided with additional projections 24 to ensure correct alignment of the strip on the sheet and with slots 23 and 27 to ensure economy in the use of carrier material.
Patent GB-1199763-A (GB)
Title: Improvements in or relating to Method and Apparatus for Data Conversion
IPC: G06K11/00
Filed: 1967-07-27
Abstract: 1,199,763. Programmed control. DRESSER INDUSTRIES Inc. July 27, 1967 [Aug. 5, 1966], No. 34671/67. Heading G3N. Magnetic lines on a data chart are converted to analogue voltages by transporting the chart in proximity to a transversely rotating member, bearing at least one magnetic sensor, the output of which is fed to a circuit for converting the electrical signals induced in the sensor into analogue voltages. As shown, Fig. 1, a data chart carries data lines 1<SP>1</SP>-4<SP>1</SP>, traced in magnetic ink, and is transported from a roll 12 to a roll 12 by a driving drum 13 and a selsyn motor gear-box combination 14. The combination 14 is driven to correlate the lines on the chart with the depth of a bore-hole. A drum 15, rotated by a motor 16, is positioned transversely to the chart and carries magnetic sensors 17 for detecting the lines 1<SP>1</SP> -4<SP>1</SP> and electric lamps 18 for indicating the line being scanned. A magnetic reference line 24 on an arm 22 is positionable by a rack and pinion 23, a light spot appearing on the chart to provide an indication to an observer. The perforations 20 are sensed by a sensor 19 and actuate an audio depth line monitor whereby the chart position can be adjusted. As the drum 13 rotates, a large amplitude signal, from sensing the reference line, and smaller amplitude signals, from the data lines 1<SP>1</SP>-4<SP>1</SP>, are transmitted to an amplifier, Fig. 3, and the reference line signal is separated by an hi-level gate and the leading edge triggers a single-shot reference set multivibrator. The leading edge of the pulse from the multivibrator cuts off the output of a sweep oscillator and the trailing edge releases it. The multivibrator pulse also sets a scale four circuit to zero. The four sensing pulses from the data lines in turn trigger a sample single shot multivibrator, the output of which is passed through an AND-gate, the reference pulse being excluded by the inverted reference pulse closing the gate, to the scale four circuit and a diode matrix to selectively trigger sample hold amplifiers for each data line, each of which stores the instantaneous amplitude of the oscillator. The output of the amplifiers is released as analogue voltages representative of the amplitude of the curve scanned with respect to the reference line. The trailing edge of the reference set multivibrator pulse triggers a single-shot reference delay multivibrator, the trailing edge of the output of which triggers a reference single shot multivibrator, having an output which is fed to an OR gate together with the output signals from the AND- gate. The output of the OR-gate is fed to a lamp display, comprising a single-shot display delay multivibrator triggering a single shot multivibrator energizing a light when it is directly underneath the line scanned. The damp display delay is determined by the physical displacement of the lamp and sensor, and the rotational velocity of the disk.
Patent GB-1468861-A (GB)
Title: Radio set with a circuit panel mounted in a frame
IPC: H05K7/14
Filed: 1974-08-08
Abstract: 1468861 Component assemblies BECKER FLUGFUNKWERK GmbH 8 Aug 1974 [18 Aug 1973] 34911/74 Heading H1R [Also in Division H3] In a radio having one or more printed circuit panels 8 each having a row of pins 11 along one edge region for connection to other parts of the radio the row of pins 11 is selectively insertable in either one of corresponding rows of sockets 12 or 121 of a cabling panel 5 of the radio or selectively insertable in one or other manner in a plural-pole plug pin holder of a cabling panel of the radio and the row of pins 11 of each circuit panel and/or the row of sockets 12, 12<SP>1</SP> in the cabling panel 5 or other plural-pole plug pin holder are arranged so that the panel can be extracted from engagement in its operating position in a frame 3, 4 and replaced in an accessible testing position where the connections between the circuit panel and the cabling panel in the operating position are re-established in the testing position. As shown the printed circuit panels 8 include components 10 such as resistors, capacitors, transistors and integrated circuits and the lower panel 8 has been removed from within the radio frame 3, 4 and has been inserted by means of its pins 11 in sockets 12<SP>1</SP> coupled to the sockets 12 for testing of that panel. In a modified radio (Figs. 4-6, not shown), the pins 11 are L-shape and extend through the edge portion of the panels so as to enable the panels to plug into a multi-pole pin holder so as to be flat within the radio casing or perpendicular to the casing allowing access for testing.
Patent GB-364760-A (GB)
Title: Improvements in non-refillable closures for bottles, jars and like liquid containers
IPC: B65D49/10
Filed: 1931-06-16
Abstract: 364,760. Non-refillable bottles. McCANCE, J. P., 13, Grantly Gardens, SMITH, D. S., 39, Shawhill Road, both in Shawlands, and McCANCE & REED, Ltd., 20, West Campbell Street, both in Glasgow. June 16, 1931, No. 34916/30. [Class 125 (i).] A closure device for a non-refillable bottle is formed with a -U shaped outlet 18, 19, each with a valve 6, 7, the conduits 18, 19 being inclined to each other in two planes, so that, in whatever position the bottle is held, one of the valves tends to close. In the form shown, each conduit is differently inclined to the main axis of the bottle in the plane of the figure, and is also differently inclined to the axis in a plane at right-angles to the figure. Stops 6a, 7a limit the lifts of the valves, and are arranged at different distances from the valve seats to prevent manipulation by shaking being successful. An air inlet 16 is normally closed by a ball valve 15. If an attempt is made to refill under pressure, a spring-urged valve 14 is forced off its seat and allows the accumulation of liquid in the spout 5 and conduit 19 to escape through ports 17. The device is secured in position by the engagement of a collar 8 with a split bush 9, locking or sealing means being passed through registering apertures.
Patent GB-282777-A (GB)
Title: Improvements in or relating to oil immersed electrical circuit interrupters
IPC: H01H33/12
Filed: 1927-12-23
Abstract: 282,777. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Macdonald, H. G.). Dec. 27, 1926, [Convention date]. Oil switches; sparking, preventing. -In an oil switch having pairs of main contacts 4 at each end of the bridging member 2 to co-operate with fixed main contacts 6, and a pair of sparking contacts 5 at each end to cooperate with contacts 7, the contacts 7. are mounted on the end of a rod 10 guided in a tube 14 and controlled bv a spring 13 so that they may be drawn out along with and in engagement with their companion sparking contacts until the spring has been adequately stressed whereupon the contacts 7 are released and a quick final break ensues. In the second position of the switch a pair of spring- controlled catches 17 between the sparking contacts 5 on the bridging member 2 engage the shoulders of a latch 11 on the end of the rod 10 and held the sparking contacts together. In the opening movement, the rod 10 is drawn downwards against the action of its spring 13 and, when the main contacts have been adequately separated and the spring strained, the movement of a pin 12 on the rod along a spiral slot 16 in the tube causes a partial rotation of the rod to free the latch and permit the auxiliary contacts 7 to return under quick action while their companion contacts are still moving away.
Patent GB-308997-A (GB)
Title: Improvements in and relating to the driving of gramophone turntables
IPC: G11B17/02
Filed: 1927-12-24
Abstract: 308,997. Wilson, J. Dec. 24, 1927. Driving; multiple machines.-Two or more gramophone turntables f are driven simultaneously by a single motor c through friction gearing, comprising a series of wheels k mounted on a common shaft b driven by the motor. Each wheel k engages frictionally with a wheel e on the corresponding turntable spindle i. A governor g is mounted on the main shaft b, but the speed of each turntable may be independently regulated by adjusting the position of each wheel k radially with respect to the wheel e that it drives.
Patent GB-362646-A (GB)
Title: Improvements in and relating to machines for washing drinking glasses, jars and other receptacles
IPC: A47L15/00
Filed: 1930-11-20
Abstract: 362,646. Apparatus for washing drinking vessels and the like. COOMBE, M. H., TOMLINSON, T. W., and WATSON, D., 47, Blackett Street, Newcastle-on-Tyne. Nov. 20, 1930, No. 34978. [Class 138 (i).] Drinking vessels and the like are washed internally and externally by means of rotary brushes fed with water and driven by an electric motor. In the apparatus shown, a hollow spindle h fed with water from a pipe a is driven by gearing g, f from an electric motor in a casing a. The spindle carries an internally-operating brush p and arms r supporting external brushes s. The brushes are mounted in a container m connected by a pipe x with a second container m<1> also having a corresponding set of rotary brushes and hollow spindle similarly driven. The containers m, m<1> may have differently sized brushes for acting on different sized articles. The brushes S are detachably mounted on reduced portions r<1> of the arms r, and maintained in position by nuts s<1> engaging screwthreaded portions of the arms.
Patent GB-782434-A (GB)
Title: Improvements in or relating to garments having inset sleeves
Inventor: QUAS-COHEN STEPHEN REX MAYER
IPC: A41D27/10
Filed: 1954-12-03
Abstract: 782,434. Padding for garments. COHEN & WILKS, Ltd. Dec. 5, 1955 [Dec. 3, 1954], No. 35152/54. Class 141 A garment with an inset sleeve 2 has a shoulder pad 10 and a sleeve head roll pad 14 both secured to the armhole seam 8a. the pad 14 being reinforced by a strip of material 16 so that the pad is forced to curve around the strip and to project into the fullness of the cloth around the upper part of the sleeve. The pad 14 is gathered slightly and secured to the strip 16 by stitching 18, Fig. 3b; one or more lateral incisions may be made in the reinforcing strip.
Patent GB-1159477-A (GB)
Title: Improvements in and relating to Methods of Modulating and Modulators for Electro-Magnetic Radiation by Double Refraction
IPC: G02F1/015
Filed: 1966-08-05
Abstract: 1,159,477. Light modulators. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 Aug., 1966 [10 Aug., 1965], No. 35202/66. Heading H4F. Variations in the double refraction of a solid substance caused by variations inthe concentration of free charge carriers injected therein are utilized to amplitude or phase modulate electromagnetic radiation, the solid substance (modulator) being subjected to a constant (which may be zero) elastic stress. The anisotropy of many substances (e.g. germanium and silicon which are optically isotropic when unstressed) depends upon the elastic stress, and in the embodiments described the modulator comprises a germanium crystal under uniaxial stress in the direction of a space diagonal (111) or a silicon crystal under uniaxial stress in the direction of an edge (100) or of a space diagonal. Substances which have natural anisotropy e.g. SiC or CdS, may be used but these usually exhibit a large double refraction by bonded electrons and thus only beams of radiation of small angular aperture may be used. As shown, a laser source is polarized 1, modulated 2, passed through a #/4 plate which converts the elliptically polarized light from modulator 2 into linearly polarized light, and analysed 4.
Patent GB-1117360-A (GB)
Title: Improvements in electric lanterns
Inventor: STIMSON ALAN PETER
IPC: F21S8/08
Filed: 1965-08-17
Abstract: 1,117,360. Street lamps. ELECO Ltd. 17 Oct., 1966 [17 Aug., 1965], No. 35274/65. Heading F4R. A street lantern comprising a mercury vapour lamp 20, an opaque oblong canopy 12, and a transparent bowl 13 with a semi-opaque central area (13<SP>1</SP>, Fig. 13, not shown) on its base, has two reflector plates 21, 22 arranged symmetrically within the canopy on opposite sides of the lamp, the curvature of each reflector in its vertical cross-section being greater in the upper part than in the lower part. The lamp is carried by a lampholder 17 supported by an angle bracket 16 which can be secured to the canopy in two alternative positions, in abutment with a horizontal surface 14, as shown, or an inclined surface 15 respectively. This enables two different light distributions to be obtained with a single lamp.