baber/WOPTO huggingface dataset:
Patent GB-462260-A (GB)
Title: Improvements in or relating to endless belt conveyors for coal or the like
IPC: B65G23/14
Filed: 1935-11-27
Abstract: 462,260. Endless - belt conveyers. RIDGILL, E. Nov. 27, 1935, No. 32959. [Class 78 (i)] A conveyer comprises an endless belt 1 (on the upper lap of which coal or the like is. to be conveyed) with a driving pulley 3 located below the upper lap adjacent to the delivery end, the pulley being embraced over a considerable arc by the return lap of the belt, and the pressure of the belt on the pulley being increased by an auxiliary band 5. The band 5 may be guided into engagement with the outer surface of the conveyer belt 1 by pulleys 6, 7, 8, 9, tension being provided by a spring 12 which acts on the pulley 8. There may be two narrow bands 5 in contact with each edge of the belt 1, or three spaced bands or a single broad band may be employed. In a modified arrangement, the guide pulley 4 for the return lap is at a higher level than the pulley 3. A brush 13 may be provided. The driving pulley 3 may have fine grooves or serrations to increase the grip still further. Specification 346,691, [Group XXIV], is referred to.
Patent GB-986832-A (GB)
Title: Superconductive devices for producing magnetic fields
IPC: H01F6/02
Filed: 1961-09-14
Abstract: 986,832. Electric superconducting coils; superconducting devices. WESTERN ELECTRIC CO. Inc. Sept. 14, 1961 [Sept. 19, 1960], No. 33048/61. Headings H1K and HIP. [Also in Division H3] A superconductive coil structure comprises two concentric coils connected in parallel. As shown, a number of gold insulated coils 1 of superconducting material such as molybdenum and rhenium niobium-tin, or bismuth-lead and separated by a plastic material are connected in parallel and by leads 3 of superconducting material, copper, nickel or platinum across a battery 2 via a variable resistance 5. The leads 3 are connected by a shunt 6 and together with the coils are suspended in a low temperature environment, in a Dewer flask 8. The high field experienced by the inner coil tends to raise the operating conditions towards the critical value so that current is diverted to the parallel outer coils where the field is less. A higher total field is thus produced. To establish a persistent current in the coils, in a superconductive shunt is used. The coils are energized and then the shunt is placed in a low temperature environment and the power supply disconnected. For a rapidly varying magnetic field the shunt is omitted or formed of low resistance material. A low resistance shunt can also be used as a safety precaution to divert the current if the coils exceed the critical temperature. The space inside the coil may be maintained at a higher temperature and higher critical field materials may be used for the inner turns.
Patent GB-450917-A (GB)
Title: Improvements in and relating to optical sound recording apparatus more particularly for use in the production and reproduction of talking motion pictures
IPC: G11B7/00
Filed: 1935-05-09
Abstract: 450,917. Optical sound recording apparatus. CLIFTON, J. B. M., and PETTIFER, F. J., c/o Coronet Camera Co., 310, Summer Lane, Birmingham. May 9, 1935, No. 33127. Divided out of 441,054. Drawings to Specification. [Class 40 (ii)] Optical sound-recording apparatus comprises means for transmitting light through a slit to a sensitized film, a light valve adapted to control the amount of light so transmitted in accordance with the sounds being recorded and optical means for forming the image of the light valve ribbon in such a manner that it moves during the recording in a direction inclined to the film slit. The device described is the same as that described in Specification 441,054, but the claims relate to the above and certain subordinate features. Specification 447,659 also is referred to.
Patent GB-807140-A (GB)
Title: Improvements in face seals for sealing between relatively rotating parts
IPC: F16J15/36
Filed: 1956-10-30
Abstract: 807,140. Stuffing-box substitutes. HILLMAN Ltd., J. & A., and HILLMAN, J. L. Aug. 13, 1957 [Oct. 30, 1956], No. 33143/56. Class 122 (5). A face seal for relatively rotatable parts, such as a shaft 18 and casing 16, comprises two relatively rotatable annular rubber or like mouldings 3, 4 interengaged one with the other to be coaxial and each carrying sealing-rings 1, 2, one of which rings is urged by resilient means, such as a spring 5, into facial sealing contact with the other. The sealing rings 1 and 2 may be made of bronze and iron respectively, and are bonded to their respective mouldings. The moulding 3 has a holding portion 9 bonded to a metal ring 10 secured, by spinning at 13, in a steel housing 12 that is a press-fit in the casing 16 and acts as an abutment for the spring 5 which in addition to urging the rings 1, 2 into sealing contact, presses the moulding 4 into fluid-tight engagement with the inner ring 17 of a ball race fixed to the shaft 18. Before the seal is assembled on the shaft, the mouldings are restrained against relative axial displacement by a flange 7 on the moulding 4. In a modification, Fig. 3, for use when the moulding 3 is to rotate, the moulding 4 is provided with an integral lip 19 extending into sealing engagement with the moulding 3.
Patent GB-819207-A (GB)
Title: Improvements in or relating to electronic switching circuits
IPC: H03K17/54
Filed: 1955-11-19
Abstract: 819,207. Switching circuits. COLE Ltd., E. K., COX, V. J., and YARROW, C. J. Nov. 19, 1956 [Nov. 19, 19551, No. 33164/55. Class 40 (6). In a switching circuit in which the signal to be switched is applied across the anode to cathode path of a discharge tube which has a control waveform applied to its control grid, the anode of a diode is connected to the control grid and the cathode is connected to the anode of the discharge tube. The Figure shows a switching circuit in which the signal to be switched is applied between terminals B, C and a control waveform is applied from generator A, When the control waveform at A is positive. grid current flows in tube v1 thus clamping the anode of diode v2 to point C. If the signal waveform across B, C is negative, current flows through tube v2 in opposition to the grid current flow in diode v1. If, however, the signal waveform across B, C is positive, current flows through the anode cathode path of tube v1. When the control waveform from A is negative, current flow in either tubes v1 or v2 is prevented unless the negative signal voltage across BC exceeds the control voltage or unless the positive signal voltage becomes so great that the control voltage is unable to cut-off current flow in tube v1, this last condition being one which will not normally arise. When the control waveform is positive the negative switching impedance approximates the sum of the series impedances of v2 and the grid/cathode path of v1 and will be of the order of 1000 ohms. The positive switching impedance will be of the order of 10,000 ohms unless tube v1 is a large power tube. In the modification, Fig. 2 (not shown), the tube v1 is a tetrode or pentode operated so that the screen current and voltage are greater than the anode current and voltage so that an anode impedance of 100-2000 ohms can be easily obtained.
Patent GB-301212-A (GB)
Title: Improvements in bread platters or supports on which bread is cut, applicable also asa cutting support for other food-stuffs
IPC: A47J47/00
Filed: 1927-12-09
Abstract: 301,212. Robinson, H. A. Dec. 9, 1927. Plates. - A bread platter or like cutting support comprises a main portion a which is recessed to accommodate a detachable slab c of pottery &c. and has a hole a<2> extending through its thickness in order to permit the insertion of a finger for removing the slab. The main portion a may be of wood.
Patent GB-1481513-A (GB)
Title: Radiation-sensitive switching circuits
IPC: H03K17/795
Filed: 1973-07-12
Abstract: 1481513 Ignition systems LUCAS ELECTRICAL Ltd 21 June 1974 [12 July 1973 25 Sept 1973] 33334/73 and 44772/73 Heading F1B [Also in Divisions G1 G3 and H3] A radiation sensitive switching circuit which may control an ignition system or a fuel injection system comprises in combination a radiation source 25, a radiation-sensitive device 27 which conducts when exposed to the radiation source, a control member (not shown) positioned between the source and the device and serving to expose the device to the source at predetermined instants of time, a trigger circuit coupled to the device and producing an output when the output of the device attains a set level and current control means for the source including a semi-conductor element 23, 24 connected in parallel with the source and means arranged to vary the current flowing in the semi-conductor element to maintain a desired level of illumination of the source. As shown the latter means measures the peak output of the device and acts to increase the current flow through the source when the peak output falls. Transistors 23 and 24 are controlled by the circuit 22, 18. When the voltage across the capacitor 48 is below a set level then the transistor 18 turns harder on and the current flowing through the transistors 23 and 24 is reduced so that the current flowing through the diode 25 is increased. In a modification the system includes a temperature stable voltage reference circuit. The ignition system shown may be modified so that a spark is produced when the transistor 27 is exposed to the light source. Specification 1481512 is referred to.
Patent GB-1426480-A (GB)
Title: Apparatus for the testint and calibration of bellows gas meters
IPC: G01F25/00
Filed: 1973-07-12
Abstract: 1426480 Measuring fluid-flow G KROMSCHRODER AG 12 July 1973 [14 July 1972] 33374/73 Heading G1R In a method of or apparatus for testing or calibrating a bellows gas meter or meters 5, a blower 1 forces gas, such as air, through a tube 16 into a container 6 to force a thin oil, water or a similar fluid through a pipe 8 into a second container 7 to displace air through a pipe 20 into the meter or meters 5. A meter 10, having a chamber at least fifty times smaller than the meter or meters 5, measures the displaced quantity of oil passing therethrough and a pulse generator 26 generates at least one thousand pulses for fifty consecutive working cycles of the meter 10 and operates an indicator 29. The pulses from the generator 26 are conveyed through a divider 27 to a gate switch 25 which only forwards these pulses to a counter 28 and the indicator 29 when a pointer 23 on a meter 5 reaches a pulse trans-  mitter 24. In an alternative embodiment, Fig. 2 (not shown) gas first passes through the meter 5 before entering the container 6.
Patent GB-1164654-A (GB)
Title: Method for Straightening a Railway Track
IPC: E01B35/00
Filed: 1967-07-20
Abstract: 1,164,654. Aligning railway track. GEORG ROBEL & CO. 20 July, 1967 [3 March, 1967], No. 33404/67. Heading B7N. In an arrangement for straightening or aligning track in a horizontal plane, an axle 3, forming part of an hydraulically operated track shifting machine, is provided with a measuring arm 6 which co-operates with a reference line, e.g. wire 9 extending parallel to the required position of the track. The measuring arm may co-operate Fig. lb (not shown), with a rail of an adjacent track or Fig. lc with a wire supported on brackets at the ends of the rail being shifted. Because of sag and swing in the wire a grooved member 23 supported on a base 22 at a measuring point may be swung vertically to engage the wire and fix its lateral position.
Patent GB-966696-A (GB)
Title: Diaryl compounds and process for preparation
IPC: C07C291/04
Filed: 1960-09-29
Abstract: The invention comprises compounds of general formula: <FORM:0966696/C1/1> wherein X is <FORM:0966696/C1/2> , one of R and R1 is hydrogen, chloro, lower (1-4) alkyl or lower (1-4 C) alkoxy and the other of R and R1 is a radical of formula -OCnH2nA where n is 1-4 and A is a di(lower alkyl)amino, piperidino or morpholino group, and Z is piperidyl, N-methyl-piperidyl or cycloalkyl; their acid addition salts and N-oxides; and their preparation (1) by reacting a compound of formula: <FORM:0966696/C1/3> with Grignard reagent of formula: <FORM:0966696/C1/4> where Y is a halogen atom and hydrolysing the reaction product, (2) by reacting a compound of formula: <FORM:0966696/C1/5> with a lithium derivative of formula Z-CH2-Li and hydrolysing the reaction product, and (3) as described including preparation of compounds wherein Z is piperidino by hydrogenation of corresponding pyridyl compounds, and the preparation of compounds of formula: <FORM:0966696/C1/6> by reaction of an alkali metal salt of the corresponding phenol with an appropriate substituted aminoalkyl halide, and the preparation of N-oxides using hydrogen peroxide. Ketones of formula: <FORM:0966696/C1/7> may be prepared by reacting an alkali metal salt of the corresponding phenol with an appropriate substituted aminoalkyl halide.  Phenols of formula: <FORM:0966696/C1/8> may be prepared by reaction of an appropriate phenolic ketone with a p-R1-benzyl magnesium halide.  Ethanols wherein Z is replaced by pyridyl are prepared as 1-[p-(b -diethylaminoethoxy)phenyl]-1-(4-pyridyl)-2-phenyl-ethanol obtained by reaction of benzyl magnesium chloride with p-(b -diethyl-aminoethoxy)phenyl 4-pyridyl ketone prepared from the corresponding phenol using sodium methylate and b -diethylaminoethyl chloride.  Therapeutic compositions contain compounds I and their acid addition salts with pharmaceutically acceptable carriers. Oral (tablets), parenteral and topical (ointments) administration is mentioned. The compounds have anti-inflammatory, anti-fungal, cholesterol depressing and adrenal regulatory activities.
Patent GB-409058-A (GB)
Title: Cleaning and polishing preparations
IPC: C09G1/08
Filed: 1932-11-25
Abstract: A preparation for cleaning and polishing surfaces of paint, lacquer, &c., or of leather, American cloth, &c., contains Neats' foot oil, paraffin oil, turpentine, and a lubricant.  Any commercial lubricating-oil may be used as the lubricant, while beeswax, linseed oil and vinegar may be added.  When petroleum jelly is used as the lubricant, the composition may also be used as a light lubricant and rust-preventing coating for springs, bearings &c.
Patent GB-1209544-A (GB)
Title: Improvements in or relating to beverage coolers
Inventor: BERWICK ALBERT GEORGE
IPC: F25D17/02
Filed: 1968-07-15
Abstract: 1,209,544. Cooling beverages. GASKELL & CHAMBERS (NON-DRIP MEASURE) Ltd. 23 June, 1969 [15 July, 1968], No. 33580/68. Heading F4H. In a beverage cooling system of the type in which a beverage coil 3a and a refrigerant evaporator 5 are immersed in a tank of water, the evaporator is disposed near the bottom of the tank and is of flat formation so that the ice bank 6 formed on it does not impede the flow of water over the beverage coil. The water flow is caused by an impellor 4a whose speed is variable to regulate the rate of heat transfer from the beverage coil.
Patent GB-1298811-A (GB)
Title: Improvements in or relating to brake discs
Inventor: HARRISON A W
IPC: F16D65/12
Filed: 1969-03-22
Abstract: 1298811 Brake discs GIRLING Ltd 10 March 1970 [22 March 1969 4 July 1969] 15173/69 and 33747/69 Heading F2E A brake disc comprises a bell member 11 and a separate annulus member 12 which abut each other on datum faces 21a and are held together by a skirt 13a on the member 11, circumferentially spaced projections 13 from this skirt meshing in slots 17 in the member 12 to hold the two members against relative rotation but allow radial expansion of the member 12. As shown, the cast annulus 12 of the ventilated type is formed with side walls 16 and cooling vanes 14, and slots 17 which are defined between the vanes, or, in the case of a solid, uncooled annulus, machined in the annulus. The bell 11, formed by pressing, has a shoulder 21a and is provided with an integral skirt 13a having projections 13 initially wider than the slots 17; alternatively the skirt is formed by a continuous annular strip of material spot-welded or otherwise secured to the bell, or a plurality of arcuate strips.
Patent GB-408386-A (GB)
Title: Improvements in the manufacture of refractory articles, linings or the like
IPC: C04B28/26
Filed: 1932-11-29
Abstract: Gas fire backs, kiln linings, and other refractory articles are moulded from a mixture of 75 to 85 per cent by weight of asbestos, and 20 to 10 per cent of sodium silicate of 75 DEG  Tw., together with water, and a flux such as borax if desired.  A specific example for gas fire backs is 100 lbs. asbestos fibre, 5 lbs. borax, and 75 lbs. sodium silicate with an equal weight of water.  The ingredients may be sprayed into the mould; for this purpose the apparatus used may be that described in Specification 368,368, [Group X].  Kiln linings may be formed in situ.  The articles after moulding or forming in situ are then dried and coated or sprayed with a refractory wash consisting of pottery clay slip 75 ozs., ground fireclay 25 ozs., flour silica 10 ozs., and water 2 1/2 to 3 pints, after which they are rendered refractory by firing at a temperature of 1000 DEG  to 1800 DEG  F.
Patent GB-842893-A (GB)
Title: Furnace ladling apparatus
Inventor: EDSTRAND ELMER WILLIAM
IPC: B22D17/30
Filed: 1956-11-06
Abstract: 842,893. Discharging molten metal. LINDBERG ENGINEERING CO. Nov. 6, 1956. No. 33888/56. Class 51 (2). Apparatus for the discharge of molten metal, e.g. aluminium, from a melting-furnace 11. connected by one or more channels 13 to a pouring chamber 12, comprises a refractory crucible 16 restricted inlet 19 and a restricted outlet 21 connected to a discharge tube 22 leading to a launder 23. The crucible is closed by a cover 17 provided with a polt 18 connected in turn to a source of air or gas under pressure or to an outlet vent. Vertical tubes 24 and 25 are mounted respectively above and below the inlet 19, the tube 24 terminating slightly below the level of molten metal in the furnace 11. An induction coil 14 may also be disposed around the or each channel 13. Discharge of molten metal is controlled by the apparatus shown in Fig. 4, in which 27 and 31 are three-way valves controlled by solenoids 28 and 33 intermittently connected to a power source 38 by a rotary timer 35. A line 26 supplies gas or air under pressure to valve 27 either directly or through a reducing- valve 32, three-way valve 31 and line 29. In operation, solenoid 33 is energized, connecting valve 34 to the reducing valve 32, subjecting crucible 16 to a gas pressure of six ounces per square inch, to depress the metal level to the top of tube 24, Fig. 1. Further rotation of the timer, de-energizes solenoid 33, opening valve 31 to the vent 34, and simultaneously energizes solenoid 28 connecting valve 27 directly to line 26. Crucible 16 is now subject to a pressure of 20 ounces per square inch, sufficient to depress the metal to the level of the outlet 21, discharging a controlled quantity of molten metal through tube 22. The tube 25 prevents escape of gas into the furnace 11. Still further rotation of the timer de-energizes solenoid 28 connecting the crucible 16 to the vent 34 through valves 27 and 31, thus releasing the pressure and allowing the crucible to re-fill with molten metal. Specification 659,366 is referred to.
Patent GB-866886-A (GB)
Title: Improvements relating to cutting tools
Inventor: DWYER JAMES HENRY
IPC: B44B3/00
Filed: 1959-10-08
Abstract: 866,886. Engraving. PRECISION GRINDING Ltd. Oct. 8, 1959, No. 34103/59. Class 100(2) A cutting tool comprises a cutter and a tracing stylo rotatably interconnected whereby when the stylo is turned about its axis the cutter is also turned about its axis to vary the width of the cut. A pulley 6 on the shaft of the cutter 2 is connected by a Bowden cable 5 to a pulley 6a, of twice the diameter, on the shaft of the stylo 3, the shafts being mounted on a pantograph 1. The cable passes twice round each pulley ar.d has a pin engaging a radial hole in each pulley. By rotating the pulley 6a, the cutter can be rotated through a larger angle, to vary the width of the cut in engraving sheet metal or cutting patterns in cardboard.
Patent GB-507421-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B79/00
Filed: 1937-12-10
Abstract: 507,421. Supply systems for consumption apparatus. NEUMANN. W. Dec. 10, 1937, No. 34184. Drawings to Specification. [Class 38 (iv)] [Also in Group VII] Power-operated sewing-machines are equipped with electric lamps mounted on the machines and provided with electricity from an accumulator which is charged by a dynamo driven from the power shaft.
Patent GB-377551-A (GB)
Title: Improvements in induction-magneto electric machines
IPC: H02K21/38
Filed: 1931-12-10
Abstract: 377,551. Inductor magnetos. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 10, 1931, No. 34221. Convention date, March 24. [Class 35.] An ignition magneto comprises a rotary member c having more than two flux conducting segments q, a stationary armature k having pole shoes m arranged perpendicularly to the axis of rotation of the member c, and a stationary magnet a having pole shoes e extending parallel to said axis of rotation, the pole shoes being so arranged that at any moment only two of the segments form the flux path, the remaining segments being out of action. The number of segments q is equal to half the number of cylinders in the engine with which the magneto is to be used, the magneto shown being adapted for use with an 8-cylinder engine.
Patent GB-1334838-A (GB)
Title: Luminescent silicates
IPC: C09K11/79
Filed: 1972-07-21
Abstract: 1334838 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 July 1972 [24 July 1971] 34224/72 Heading C4S A luminescent silicate activated by trivalent Ce and of olivine crystal structure is of formula Li (1-x) Na x Y (1-p) Ce P SiO 4  wherein 0À90#x#0 and 0À25#p#0À0001, e.g. 0À80#x#0À50 and 0À10# p#0À002. The phosphor may be incorporated in a c.r.t. which may be demountable and also contain a luminescent material emitting green and red and of decay time <10<SP>-7</SP> sees., e.g. a garnet crystal of formula Y (3-x) Ce x Al 5 O 12  wherein 0À20#x#0À01 as a separate layer or mixed with the above phosphor. Reference is made to the transition at 1080 C. from the olivine structure to that of # calcium silicate. Emission is a broad band of 405 nm. maximum shifting to 430 nm. for increasing Na content for Li 0 . 1 Na 0 . 9 YSiO 4  : Ce. In preparation, a mixture of silicon dioxide with the oxides and/or equivalent compounds of Li, Y, Ce and optionally Na, are heated in air at 600 to 1200 C., cooled and homogenized, then heated in a reducing atmosphere at a temperature below the above transition temperature. Generally the starting mix is in stoichiometric proportions but Li is in small excess. The final product may be ground. The reducing atmosphere may be produced by carbon in the vicinity of the firing mix in the furnace. Detailed examples of preparation are given for LiY 0 . 99 Ce 0 . 01 SiO 4 ; Li 0 . 4 - Na 0 . 6 Y 0 . 99 Ce 0 . 01 SiO 4 ; Li 0 . 2 Na 0 . 8 Y 0 . 99 Ce 0 . 01 SiO 4 ; and variation of p values, 0À005, 0À01, 0À02 and 0À04. Reference is made to partial replacement of Li by K causing also a green emission, but not of the olivine structure and not very suitable for practical use. Similarly, Ce activated NaYSiO 4  is mentioned. C.r.t.s may be for displaying TV images, recording oscillograms and for flying spot scanners, the light in the latter case being projected on a document to be displayed, e.g. a lantern slide, film or security paper for receipt by a photodetector and also flying spot scanners for colour TV signal generation. Reference is also made to gehlenite (Ca 2 Al 2 SiO 7 ) activated by Ce<SP>3+</SP> and to British Specifications 1,207,950 and 1,174,518.