baber/WOPTO huggingface dataset:
Patent GB-971099-A (GB)
Title: Improvements in apparatus for delivering measured quantities of liquids such as hydrocarbon fuels
IPC: B67D7/22
Filed: 1962-07-17
Abstract: 971,099. Dispensing liquids. AVERY-HARDOLL Ltd. July 17, 1962 [March 9, 1962], No. 27475/62. Heading A4T. [Also in Division G1] In liquid dispensing apparatus comprising pump 1, Fig. 2 driven by motor 2, separator 4 and meter 5 leading to hose 7, an indicator 8 has no mechanical driving connection to the meter but is driven by an electromechanical remote transmission system e.g. selsyn transmitter 13 and receiver 15, and means are provided for automatically stopping the pump if the indicator and the measurements of the meter do not correspond. When the meter and indicator are out of phase, a voltage occurs between two neutral points 13c, 15c, Fig. 3 whereby a current flows in the primary 22 of a transformer T2 and induces a voltage in the secondary 23 to act on the starter 25 of a thyratron in series with a voltage derived through the mains transformer T1, rectifier 26 and starter threshold adjusting potentiometer 33 whereby the cathode current from the thyratron energizes auxiliary relay R1 whereby switch arm 29 is moved from a contact R to contacts T to de-energize relay R2 and open switches 35 to stop the pump motor. R2 starts the pump motor under the control of a nozzle switch 34.
Patent GB-989721-A (GB)
Title: Improvements in or related to fluid couplings and variable speed drives
IPC: F16D33/04
Filed: 1960-08-09
Abstract: 989,721. Hydraulic couplings. E. ROTHERHAM, and G. H. PEARSON. Aug. 9, 1961 [Aug. 9, 1960], No. 27509/60. Heading F2C. An hydraulic coupling comprises an inner component U having radially-extending vanes F which are radially or rotatably adjustable by hydraulic means. The inner component is driven by gearing P from a prime mover and is enclosed by an outer casing E having fixed vanes between which are cavities defined by the dotted line. As described, the vanes F of the inner component are radially adjustable by pistons J connected to the vanes and movable by hydraulic fluid displaced through passages K, W upon movement of a piston which is connected to a control rod S and engaged on one side by a spring V. In operation, the vanes are initially retracted until the prime mover is rotating at a predetermined speed. Thereafter, the vanes are gradually extended by movement of the rod S displacing fluid through the passages K to the pistons J until, when the vanes are almost fully extended, the casing is rotating at almost the speed of the inner component U; springs may assist the movement of the vanes. When the vanes are fully extended, they engage a ring H to positively drive the outer casing at the same speed as the inner component.
Patent GB-616850-A (GB)
Title: Improvements relating to railway traffic controlling apparatus
IPC: B61L13/04
Filed: 1946-09-13
Abstract: 616,850. Inductive track apparatus actuated by presence of a railway vehicle. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Sept. 13, 1946, No. 27558. Convention date, Oct. 30, 1945. [Class 105] To detect the presence of a vehicle in a stretch of track such as on a cross-over where there is a high wheel-to-rail resistance due to infrequent travel over the cross-over or the presence of a vehicle with insulated wheels, or the presence of a vehicle in other circumstances where the track relay may not be dropped, a wire loop is placed adjacent the track rails and the change in inductance thereof arising from the presence of a vehicle is used to effect a signal. As shown in Fig. 1 the loop L which has transposed sections to reduce inductive effect with the rails (track circuit) is supplied with current of. frequency f from an oscillating valve V1 through a transformer coupling, but this latter is periodically affected by the closure of coder contact operating at 180 times a minute to vary the tuning and as a result an amplifier valve V2 coupled with the transformer OT and feeding a relay CF through a tuned coupling F1 is periodically affected at the same coder rate whereby the alternate energization and deenergization of the relay CF energizes through a de-coding unit DT, 180 DU, a detector relay CD. Presence of a vehicle modifies the inductance of the wire loop L and the relay CF accordingly remains steadily dropped since the amplifier V2 no longer supplies current of frequency f1. As a result the detector relay CD drops to signal the presence of a vehicle. A modification, Fig. 2 (not shown), has the wire loop forming with a parallel condenser one arm of a Wheatstone bridge which is periodically unbalanced by the 180 coder contact opening the line to the wire loop so that an amplifier valve is periodically operated to operate a similar relay CF and de-coding unit DT, 180 DU. With a vehicle present the Wheatstone bridge is no longer periodically balanced and the de-coding unit therefore does not energize the detector relay CD. The wire loop may extend only over the fouling length of the crossover and the loops for the two ends may overlap each other to reduce their mutual inductance. Specification 297,945, [Class 105], is referred to.
Patent GB-1472458-A (GB)
Title: Apparatus and a method for treating a surface in particular for spraying an insulating foam on a wall
IPC: B05B13/04
Filed: 1974-06-21
Abstract: 1472458 Cleaning tanks SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 21 June 1974 27671/74 Heading A4F [Also in Divisions B2 and B3]  Apparatus for cleaning the internal surface of a tank comprises a tool carrying carriage 14 pivotally mounted about a vertical axis to or near the end of an extendible element 10 which is rotatable in a horizontal plane about the longitudinal axis of a vertical column 8. The tool is maintained on the tank wall or at a predetermined distance from the tank wall 2 by rollers 16 or runners on the carriage 14 or by cam surfaces controlling the relative positions of the portions of the element 10 and the carriage or by sonic or electronic control means and is preferably moved at a constant speed manually or by driving one or more wheels 16 or by rotating the element 10 on the column 8. The carriage 14 may move vertically relative to the element 10 which may be telescopic or pivoted, as shown, or the column 8 may be moved vertically. The element 10 may be counterbalanced by a mass or a second oppositely disposed tool carrying assembly. The tool may alternatively clean, sand blast or grind the wall surface.
Patent GB-235085-A (GB)
Title: Improvements in and relating to self-discharging wagons
IPC: B61D3/06
Filed: 1924-11-19
Abstract: 235,085. Schilde, P., Bongardt, E., and Rolland, J. Nov. 19, 1924. Addition to 220,846. Hopper wagons.-A self-discharging wagon in which the bottom on opening acts on a mechanism which raises the body, as described in the parent Specification, is provided at each end frame with a system of levers which is connected by a pull-bar to the bottom and effects the raising of the body when the bottom is lowered. Pivoted at 2 to the end frames of a wagon are levers 3 connected at their outer ends by links 5 to the end walls of the body 1 and connected together at their inner ends by a lever 4 which is itself linked to the bottom 9 by a bar 7. Normally the bottom 9 is supported by pins 10 which rest on bolts 19 and are locked by hooks 11 actuated by levers 12 and links 13. Each bolt 19 moves about a pivot 18 under the influence of a spring 19<1> and is actuated by a lever 25 carrying a short arm. 23 adapted to strike and displace a lever 22 which operates a bar 21 depending from 'and fixed to the bolt. In operation, the hook 11 on the discharge side of the wagon is released and the lever 25 moved outwards. The arm 23 moves the bar 21 inwards, turning the bolt 19 about its pivot and permitting the pin 1 to slide down the curved face of the bolt and lodge beneath its lower edge, the bolt being returned to its normal position by the spring 19'. The lower parts of the sides, comprising hinged flaps 15, are thrust outwards by the load and the bottom in falling draws down the lever 5, raising the body 1. When the load is discharged, springs 17 draw inwards the flap 15 and an inward movement of the lever 25 turns the bolt 19, releasing the pin 10 and permitting the weight of the body 1 to raise the bottom 9. On completion of this movement the spring 19' restores the bolt 19 to its normal position. During both movements the spring 19<1> causes the pin 10 to slide smoothly over the curved surface of the bolt 19 and to reach its end position without shock.
Patent GB-992671-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: C23C14/04
Filed: 1962-07-19
Abstract: 992,671. PN junctions. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 19, 1962 [Aug. 16, 1961], No. 27733/62. Heading H1K. In a method of producing a plurality of PN junctions in a semi-conductor body, e.g. silicon or germanium, a number of discrete deposits of a first material are formed on the semi-conductor body and a thinner deposit of a second material provided to cover the body surface and the first deposits. After subjecting the assembly to a liquid which dissolves the first material out from under the respective layer of the second to expose predetermined areas of the semi-conductor body these areas are treated through the apertures in the second material layer to form a plurality of PN junctions. The Specification describes a process for producing a plurality of mesatransistors in which a number of discrete deposits 20 (Fig. 5) of sodium chloride are formed by vapour deposition through a molybdenum mask (Fig. 1, not shown) on a P-type layer 18 on N-type germanium body 11. A layer 21 of either silicon monoxide or magnesium fluoride is then deposited on to each of the salt deposits and the assembly immersed in a bath of water or an aqueous solution containing hydrofluoric acid, ultrasonically agitated, to dissolve away the salt and thus release the small covering " caps " of silicon monoxide exposing predetermined areas of the semi-conductor body. Arsenic is then diffused into these exposed regions to form N-type emitter layers 24 (Fig. 11). The assembly is then coated with a conductive layer, e.g. of silver, which is alloyed to form ohmic contact to the emitter layers. After another immersion in an acid bath to remove all of the silicon monoxide, a further silver layer is deposited through a metal mask to form base electrodes 30. After covering the top face of the structure with a wax film and scribing lines in its surface the assembly is etched producing trenches 36, 37 (Fig. 13) defining a multiplicity of mesa units 38, 38 which are then broken off. Each individual unit is then soldered to a metal header which constitutes a collector terminal and through which insulated base and emitter terminal pins extend.
Patent GB-242647-A (GB)
Title: Improvements in and relating to gaseous conduction electric lamps
IPC: H01J17/00
Filed: 1925-11-04
Abstract: 242,647. British Thomson-Houston Co., Ltd., (Assignees of Moore, D. M.). Nov. 7, 1924, [Convention date]. Resistance coatings and deposits; materials.-In a gas-discharge lamp a high resistance, say 50,000 to 100,000 ohms., may be placed within the cap and may consist of a rod or of a mass 17 applied to the outside of the bulb. A suitable resistance mixture consists of clay impregnated with graphite, or of carbon or fine graphite and a mixture of powdered marble with shellac and alcohol, or with synthetic resin. The conductor 16 from the cap may be anchored by the resistance mixture.
Patent GB-765489-A (GB)
Title: Improvements in or relating to production of radioactive phosphorus
Inventor: EVANS CHARLES CHARLTON
IPC: G01T1/204
Filed: 1954-09-25
Abstract: 765,489. Purifying radio-isotopes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 26, 1955 [Sept. 25, 1954], No. 27760/54. Class 39(4). Radioactive phosphorus is obtained from neutron irradiated sulphur by distilling off the sulphur and taking up the residue with a mineral acid. After irradiation in a flux of 10<12> neutrons/square centimetre per second for 28 days with the sulphur in a silica vessel, the sulphur is distilled off at about 500‹C. in the presence of nitrogen. The sulphur thus increases in purity and may be further irradiated. The phosphorus is removed as phosphoric acid with hydrochloric acid containing some hydrogen peroxide. The specification also describes the recovery of phosphorus-by oxidation with nitric acid and treating with iron or lanthanum.
Patent GB-316469-A (GB)
Title: Improvements relating to machine tools for metal cutting operations
IPC: B23Q11/08
Filed: 1928-09-27
Abstract: 316,469. Ingham, A. E., and Richards & Co., Ltd., G. Sept. 27, 1928. Cuttings, catching.-The beds of machine tools are protected from cuttings by a series of sliding plates telescopically fitted. As applied to a boring and facing machine, the first of a series of plates c is secured to the saddle a and the last to the bed. Slides g are fitted to the edges of the separate plates to maintain the plates horizontal and in proper alignment. The plates are connected by means such as bolts and slots or by pins and grooves.
Patent GB-680391-A (GB)
Title: Improvements in and relating to solvent filtering apparatus
IPC: B01D35/16
Filed: 1950-11-14
Abstract: 680,391. Filters. PROSPERITY CO., Inc. Nov. 14, 1950 [Feb. 11, 1950], No. 27767/50. Class 46. Apparatus for filtering for example used dry - cleaning solvent comprises a casing 1, Fig. 2, formed with a filterbag compartment 14 and a "transfer" com partment 20 in front of it, filter bags 15, Fig. 6, being arranged upright and spaced horizontally with their front ends open to the transfer compartment. A baffle 28 forming a passage open only at its lower end is provided in the transfer compartment 20 in front of the open ends of the bags 15 and above it a valve-controlled outlet 4 leading back to the dry-cleaning plant. An inlet 2 through which solvent may be forced into the bag compartment 14 for flow inwards through the bags 15 is provided in the lower part 17 of the bag compartment. For back-washing the bags and cleaning the sludge-laden solvent a pipe communicating with the atmosphere and controlled by a valve 35, Fig. 1 (not shown), may be provided on the top of the casing 1 and an auxiliary outlet 8 may also be provided connected to a subsidiary filter and thence to a still. In the backwashing operation the inlet 2 and outlet 4 are closed and valve 35 and outlet 8 are opened to drain the solvent until it just covers the bags 15. The valve 35 is then closed and a valve 33 on a compressed air pipe 34 is opened, the air passing through it forcing filtered solvent first downwards, then upwards under the baffle 28 and outwards through the bags 15. An agitator 37 operated by an electric vibrator 38 may be provided in the space 17. The bags 15, Fig. 4, (which is a horizontal cross-section), preferably each comprise fabric or fine wire mesh reinforced by wire mesh 25 and are provided at their front ends each with a rectangular metal frame 26 of angular cross-section. That flange of the frame on which the bag is fitted extends through a slot 23 in a wall 22, Fig. 6, the other flange of the frame co-operating with the margin of the slot 23 to secure a peripheral bead 27 of the bag which is compressed through the agency of bars 22A, Fig. 6, secured to the wall 22. The bags are reinforced internally by metal strips 40, Fig. 2, welded at 41 to the frames 26, and externally by spacers 42, Fig. 4, welded at 43 to the wall 22. The top and side edges of the baffle 28 are flanged and secured together with the top and sides of the wall 22 to the mouth of the compartment 14 by screws 24. Additional screws 23A secure the bottom of the wall 22. When the casing 1 is empty the baffle 28 and if required the bags 15, still secured to the wall 22, may be removed after a cover 31 is removed from the front of the compartment 20.
Patent GB-227556-A (GB)
Title: Electric condenser
Filed: 1923-11-05
Abstract: 227,556. Lissen, Ltd., and Richardson, R. P. Nov. 5, 1923. Condensers. - In a variable condenser of the type in which capacity is varied by rotating a screw adapted to cause relative movement between the plates in a direction at right angles to their adjacent surfaces, a stop means is provided which permits more than one rotation of the adjusting screw. In the form shown in Fig. 1, the lower plate 2 is moved in relation to the upper plate 1 by rotating a spindle 6 in screw engagement with a bush 16 secured to an insulating strip 14 on which the plate 2 is mounted. The stop means comprise a projection 18 secured to the spindle 6 and coacting with a stop 19 secured to the strip 14, the stop being slotted so as to permit rotation of the spindle until the stop has been displaced in relation to the projection by movement of the strip 14 a distance corresponding to the width of the slot. The range of the condenser may be varied as to extent by varying the width of the slot and as to position by shifting the projection 18 along the spindle 6. Axial movement of the spindle is prevented by a shoulder 8 and collar 9 coacting with a sleeve 5 secured to the top plate, the sleeve being threaded externally to receive a nut 7 by which the condenser may be secured to a panel. Rotation of the strip 14 is prevented by pins 13 passing through clearance holes in the strip. Springs 15, 17 are provided to take up play between the spindle and bush 16 and between the spindle and sleeve 5. A disc of copper or other metal foil may be attached to one plate and a mica disc secured thereto by an adhesive. In another form, Fig. 4, one set of plates consists of stiff members 24, 25 adapted to be drawn together by a screw so as to compress between them bent resilient metal foil plates 26. To avoid the necessity for accurate machining of the plates, a sheet of metal-coated paper may be pasted upon one or both plates, or, alternatively, the plates may be coated with cement upon which a sheet of foil is placed, the condenser parts being pressed together while the cement is soft so as to cause any hollows in the plate to be filled. Insulating varnish, rubber or celluloid applied as a coating to the plates may be employed instead of mica as a dielectric. Specification 208,598 is referred to.
Patent GB-1076464-A (GB)
Title: Copolymers and adhesives containing such copolymers
IPC: C08F220/10
Filed: 1964-07-06
Abstract: Novel copolymers suitable for use as adhesives comprise (a) 40 to 75 parts by weight of units of at least one compound selected from tetrahydrofurfuryl acrylate and alkyl acrylates having 1 to 8 carbon atoms in the alkyl radical: (b) not less than 15 parts by weight of units of at least one N-alkyl-acrylamide or -methacrylamide wherein the alkyl radical has 1 to 8 carbon atoms; and (c) 0 to 30 parts by weight of units of N-vinyl-2-pyrrolidone; with the proviso that if the units (a) consist solely of alkyl acrylate, the amount of units (c) is from 10 to 30 parts by weight.  In a modification, up to 50% by weight of units (a) may be replaced by units of one or more alkyl methacrylates having 1 to 12 carbon atoms in the alkyl radical or by units of one or more alkoxyalkyl acrylates.  Furthermore, the copolymer may comprise a minor amount of units of one or more other copolymerizable compounds, e.g. acrylic acid, methacrylic acid, acrylamide and methacrylamide.  Ethyl acrylate is the preferred alkyl acrylate (a) and N-t-butylacrylamide is preferred as component (b). In examples, the copolymers are prepared by polymerization in acetone using azodiisobutyronitrile as catalyst; in one preparation t-dodecyl mercaptan is also present and the catalyst is added after reaction has commenced. For use as an adhesive the copolymer may be dissolved in a volatile organic solvent; the product obtained by solution polymerization may be used in this respect.
Patent GB-892323-A (GB)
Title: Improved process for the manufacture of azo dyes
Inventor: BARKER PETER WILLIAM
IPC: C09B62/026
Filed: 1959-08-14
Abstract: Sulphamic acids of formula <FORM:0892323/IV (b)/1> wherein A is an arylene radical which may be substituted other than by sulphonic acid groups, R is a hydrogen atom or an alkyl radical with 1-4 carbon atoms which may be further substituted and Z is a heterocyclic ring attached to the -NR- group through a carbon atom of an <FORM:0892323/IV (b)/2> group which is present in the heterocyclic ring are obtained by treating a compound of formula <FORM:0892323/IV (b)/3> with a chlorinated heterocyclic compound Z-Cl.  They are used in the preparation of azo dyes (see Group IV (c)).  In Examples (1) 4-amino-phenylsulphamic acid is reacted with 2 : 4 : 6-trichloropyrimidine in aqueous ethanol in the presence of sodium carbonate to give the sodium salt of 4-(dichloropyrimidylamino) phenylsulphamic acid; (2) an aqueous solution of 4-41 : 61-dichloro-11 : 31 : 51-triazin-21-ylamino) phenylsulphamic acid sodium salt obtained by the process of (1) but using cyanuric chloride is further reacted with an alkaline solution of 2-mercapto-benzthiazole to give the sodium salt of 4 - [41 - chloro - 61 - (benzthiazol - 211 - ylthio) - 11 : 31 : 51-triazin-21-ylamino]-phenylsulphamic acid.  Similar compounds are prepared in aqueous solution in further examples.  2 - Methoxy-4-amino-5 - methylphenylsulphamic acid is prepared by treating 2-methoxy-4-nitro-5-methylaniline with chlorosulphonic acid in the presence of dimethylaniline and reducing the nitro group.  4 - N - methylamino - phenylsulphamic acid is prepared by reducing N-methyl-4-nitroacetanilide with sodium bisulphite followed by alkaline saponification of the N-acetyl group.  Specification 838,337 is referred to.ALSO:Azo dyes of formula <FORM:0892323/IV (c)/1> wherein A is an arylene radical which may contain substituents other than a sulphonic acid group, B is the residue of a coupling component which may contain an arylazo group, R is a hydrogen atom or an alkyl radical with 1-4 carbon atoms which may be further substituted and Z is a heterocyclic ring which is attached to the -NR- group through the carbon atom of a <FORM:0892323/IV (c)/2> group which is present in the heterocyclic ring, are prepared by diazotising a sulphamic acid of formula <FORM:0892323/IV (c)/3> or a metal salt thereof (see Group IV(b)), and coupling the diazo compound so obtained with a coupling component B-H.  The heterocyclic ring Z is preferably a mono- or di-halo-triazine residue.  In Examples: (1) an aqueous solution of 4 - [41 - chloro - 61 - di(b  - hydroxyethyl)amino - 11 : 31 : 51 - triazin - 21 - ylamino] phenylsulphamic acid is treated with sodium nitrite solution and p  hydrochloric acid and the diazo compound obtained is coupled with p-cresol; (2) 4-(41 : 61 - dichloro - 11 : 31 : 51 - triazin - 21 - yl amino) - phenyl sulphamic acid is treated as in (1) and the diazo compound coupled with 1 - (21 - sulphophenylazo) - 2 - amino - 5 - naphthol - 7 - sulphonic acid. Many further examples are specified. Specification 838,337 is referred to.