baber/WOPTO huggingface dataset:
Patent GB-266986-A (GB)
Title: Improvements in heating articles such as rock drill tools for forging and the like
IPC: H05B3/00
Filed: 1926-07-28
Abstract: 266,986. Bushell, B. D., Ewing, S. E. T., and Brunner, E. H. D. July 28,1926. Heating by electricity.-In an apparatus for heating the ends of rock drills, picks and the like, for forging and hardening, the electrode clamps 3, are shaped to the form of the body to be heated and a pedal operated switch 14 enables the operator to periodically interrupt the current to secure uniform heating. The clamps are water cooled, one being fixed and the other being operated by a screw 6. Detachable jaws 18 of various shapes are provided for attachment to the electrode clamps. A current of 17,000 amperes is employed.
Patent GB-170065-A (GB)
Title: Improvements in pressure regulating valves for gas, known as economisers
IPC: G05D16/06
Filed: 1920-07-06
Abstract: 170,065. Tickner, H. L., and Waymark, L. L. July 6, 1920. Pressure-regulating valves.-A diaphram-actuated pressure regulator has the diaphragm secured in a recess at the top of the casing, the wall of the body cavity extending directly downwards from the front edge of the recess to below the gas outlet. The valve f adapted to co-operate with a seat e is mounted on a spindle adjustably connected by nuts i to a diaphragh h. The diaphragm is clamped between washers q, q arranged in a recess p in the casing by screws s engaging a ring r. The spindle is protected by a sleeve k and passes through an internal cover m to receive loading-weights m. The readily-detachable external cover t is secured by turn-buckles and a padlock. Alternative inlet connections b, b<1> are provided.
Patent GB-1213428-A (GB)
Title: A method of reducing erosion of earthworks
Inventor: SCHELLER GUNTHER
IPC: D04H1/4334
Filed: 1969-04-14
Abstract: 1,213,428. Preserving earthworks. FARBENFABRIKEN BAYER A.G. AND E. A. H. NAUE K. G. ROSSHAARSPINNEREI GUMMIHAAR-UND SCHAUMPOLSTERFABRIK. 14 April, 1969 [13 April, 1968; 13 Aug., 1968; 1 Oct., 1968; 10 Feb., 1969], No. 18918/69, Heading E1H. [Also in Division D1] A mat laid upon or buried in an earthwork to minimize erosion comprises a layer of non- woven crimped polyamide, polyester or polyolefine fibres secured by stitching, fusion and/ or a binder such as natural or synthetic latex. The mat may be embossed so as to have a quilted appearance, Figs 8 and 9 (not shown). The latex may contain quartz sand or barium sulphate to strengthen the mat. Reinforcing filaments of plastics material may be superimposed upon, or incorporated in, the mat and secured by the said binder, Figs. 3 and 4 (not shown). The filaments may form a lattice, Fig. 2 (not shown). When used for lining subaqueous ground the upper side of the mat may be denser than the lower one. Plant seeds may be lodged in the mat.
Patent GB-625905-A (GB)
Title: Improvements in or relating to the pressure molding of thermosetting plastic material
IPC: B29C45/72
Filed: 1946-06-24
Abstract: 625,905. Injection-moulding machines. ARNOLD, J. C. (Lester Engineering Co.). June 24, 1946, No. 18924. [Class 87 (ii)] Relates to the injection-moulding of thermosetting plastic material by forcing the material from a pressure chamber into a mould and has for its object to avoid the formation of hard slugs of unplasticized material in the pressure chamber and the consequent interruptions of the moulding process. The pressure chamber 7 is charged with solid, finely-divided thermosetting material and there are also a plunger 8 for. forcing the material out of the pressure chamber, separable die blocks 3 and 4 forming mould cavities 10 with connecting passages 11 located in the parting line between the die blocks, an insert 12 in the centre of the die block 4 projecting into the discharge end of the pressure chamber and having connecting passages in its outer surface continuous with the passages 11 and leading to the discharge end of the chamber 7, heating means 23, 24 adjacent the cavities 10 and heating means 22 adjacent the passages 11, cooling means 16, 20, 21 adjacent the discharge end of the pressure chamber for cooling the interior of the latter and ejector means ensuring that the entire body of the originally provided material is removed from the pressure chamber and connecting passages at the completion of each moulding operation. The cooling means 16 is a space inside the projection 12 through which water is circulated through concentric water tubes 14, 15 and the cooling means 20, 21 are ducts in the wall of the pressure chamber 7. By these means the temperature of the material, while in the pressure chamber, is kept below the plasticization point and the material is forced out of the chamber while still in a solid unplasticized state. As the material travels through the passages 11 it is subjected to a temperature high enough to make it plastic, and when it is in the mould cavities 10 it is subjected to further heat and pressure to cure or hot set it. After these steps, which form a continuous operation, the die blocks 3 and 4 are separated and an ejector plate 26, on which are ejector pins 25, moves outwards and ejects the entire moulding, including the portions in the passages 11 and in front of the projection 12, and at the same time the plunger 8 moves outwards slightly beyond the face of the die block 3 to clear all the material out of the chamber 7 and so prevent it from coming into contact with the material of a succeeding charge.
Patent GB-707309-A (GB)
Title: Apparatus for transmitting oscillatory motion of a known frequency and suppressing superimposed oscillatory motions of other frequencies
IPC: F16H35/00
Filed: 1951-08-11
Abstract: 707,309. Vibration dampers. PILKING- TON BROS., Ltd., DAVISON, R., and SMITH, R. BARRADELL-. July 22, 1952 [Aug. 11, 1951], No. 18959/51. Class 108(3) Apparatus for transmitting oscillatory motion of a known frequency and suppressing oscillations of higher and lower frequencies comprises an adjustable bleed device 8, 9 in a liquid filled conduit 11 between first and second motion-transmitting members 2, 6, a spring 3 connecting an input member 1 to the member 2, a liquid reservoir 13 connected with conduit 11 via. a second adjustable bleed device 12, 14, and balance springs 16, 17 urging the member 6 to a neutral position. The members 2, 6 comprise resilient bellows, and due to the difference of their diameters an amplification is given to the transmitted oscillations. In operation, the higher frequencies are suppressed by the action of the spring 3 and the bleed device 8. Lower frequencies are suppressed by the action of the bleed device 12, 14 and the springs 16, 17, and the amplified oscillations are passed on to an output member 18. The device is applicable to transmitting the eccentric motion of slowly rotating rolls, and the deflections of railway bridges, as described in Specification 707,308.
Patent GB-838575-A (GB)
Title: Method of growing corundum crystals
IPC: C30B29/00
Filed: 1958-06-13
Abstract: <PICT:0838575/III/1> A crystal of corumdum is grown on a seed crystal 12 (Fig. 1) in a sealed autoclave 1 containing an aqueous medium 15 and aluminium-containing nutrient material 11, the medium being maintained at a temperature of at least 395 DEG  C. in the region of the seed crystal 12 and above this temperature in the region of the nutrient material 11.  The nutrient material may be aluminium oxide or aluminium hydroxide, and the aqueous medium may be a solution of sodium or potassium carbonate or hydroxide.  The materials are contained in a sealed steel tube 6, which may be lined with silver or platinum, or in a sealed liner of silver inside tube 6 and spaced therefrom, the space being filled with water or aqueous medium. Several seeds may be used, and they are supported by a wire frame 13 having a baffle 14.  The aqueous medium fills at least 65% of the free volume of the autoclave at room temperature, and the autoclave is heated to maintain its external mean temperature between 420 DEG C. and 460 DEG  C. with the external temperature opposite the nutrient material 30 DEG  C. to 35 DEG  C. higher than the external temperature opposite the seed crystal.  Chromium, cobalt, titanium or nickel may be incorporated in the growing crystal by adding compounds of these metals to the aqueous medium.
Patent GB-276488-A (GB)
Title: Improvements in reciprocating air and gas compressors
IPC: F04B49/02
Filed: 1926-08-03
Abstract: 276,488. Belliss & Morcom, Ltd., and Walshe, J. M. Aug. 3, 1926. Addition to 262,970. Regulating compression.- The shut-off valves which regulate compression by closing against the backs of the inlet valve seats are actuated so that with reduced loads they are closed during each suction stroke at a variable point in accordance with the demand for air. According to one method, the spring pressure on the trunk piston tending to hold the shut-off valve away from the seat is balanced to a variable extent by the pressure of air from the receiver or main delivered through a cock a<1>, Fig. 1, to a vessel in which it acts on a relay valve b pulled down by an adjustably spring-pressed lever. Rise in pressure above that for which the spring is adjusted opens a passage for the air through ports d<1> to the shut-off valve-operating cylinders. The pressure is released from these cylinders through a pipe a<2> and ports d<2> when the pressure falls allowing the spring c<1> to pull the valve b down. The shut-off valve is thus held balanced at a variable distance from the seat, and closes under suction at a variable point in the stroke. In a modification, a pressure-controlled mechanically-operated pilot valve j, Fig. 2, distributes air to the valve cylinders. In this apparatus, the compressed air admitted to a cylinder e raises a plunger f actuating a bell crank lever against a spring. An arm g<2> of the lever rotates a lever h on a spindle i slidably connected with the valve j. This valve and the liner j have coacting ports to admit air to the cylinders, and the rotation of the valve causes variation in the times at which the valve ports open and close during the stroke, which is effected by an eccentric ! l on the crank shaft.
Patent GB-184350-A (GB)
Title: Improvements in water closets
IPC: E03D9/05
Filed: 1921-07-15
Abstract: 184,350. Doulton, H. L., and Walker, G. July 15, 1921. Closets, ventilating.-A pocket f is formed inthe body of the basin on one side cf the discharge pipe, and is connected with the outer air by a passage g on each side. One passage is connected to a vent-pipe and the other is closed by a plate bolted to the basin.
Patent GB-147444-A (GB)
Title: Improvements in or relating to electrical frequency multipliers
IPC: H03B19/03
Filed: 1920-07-07
Abstract: 147,444. Ges. fiir Drahtlose Telegraphie. Oct. 26, 1918, [Convention date]. Frequency, changing.-In apparatus for multiplying frequency by means of a single static frequency transformer, oscillatory circuits which include alternately the secondary and primary windings of the transformer are provided, these circuits being tuned to the frequencies produced by the inductive action of the windings on each other. In the arrangement shown, the transformer T has a frequency transformation ratio of 1 : 2 in both directions. The generator G is connected to the primary coils Z1 of the transformer through a circuit containing capacities C1, C<1>4 and an inductance L1 tuned to the fundamental frequency w. This frequency is doubled in the secondary coils Z2' and the circuit C2, L2, C<1>2 is tuned to the frequency 2w in order to produce a frequency 4w in the primary coils. The circuit C4, L4, C<1>4 is tuned to the frequency 4w, thereby producing a frequency 8w in the secondary coils. The circuit including the antenna A is tuned to the frequency 8w. The method can be extended at will and applied to frequency transformers with other transformation ratios.
Patent GB-251815-A (GB)
Title: Improvements in flushing apparatus
IPC: E03D3/10
Filed: 1925-07-30
Abstract: 251,815. Johnson, O. C. July 30, 1925. Addition to 214,903. Valvedischarge water-waste preventers. -The closed cistern of the parent Specification is provided with an inlet valve E' which is maintained closed when the discharge-valve is actuated. While the cistern is filling, the pressure of the water on the inverted trunk F<6> through the stem R forces a ball H outwardly against a spring H<1> to lock the trunk piston-valve F. When the pressure in the cistern is equal to the pressure supply head, the spring S becomes operative to raise the trunk F<6>, closing the inlet-valve and unlocking the discharge-valve F. The trunk F<6> is locked in the raised position when the dischargevalve F is opened by the pressure of the ball H against a cam surface on its lower end.
Patent GB-335538-A (GB)
Title: Process and apparatus for rising casting of ingots slab blooms and the like
IPC: B22D35/04
Filed: 1929-06-24
Abstract: 335,538. Brinkmann, T. March 8, 1929, [Convention date]. Moulds.-In order to avoid splashing and to obtain an increased rate of flow in casting ingots &c., the vents in the channel stones a are in the form of slots c. Preferably the channel-stones are of uniform size and a slot of less width than the channel d extends from end to end of each stone. The slots are closable by slides b, working in grooves in the sides of the slots, and adjusted to leave vents of the widths of the moulds e, or as required. The slides b may be notched in order that suitable lengths may be broken off. The mouths of the slots may be enlarged to steady the flow.
Patent GB-1188373-A (GB)
Title: 07-Cyclopropyl Steroids
IPC: C07J1/00
Filed: 1967-04-27
Abstract: 1,188,373. 17-Cyclopropyl steroids. STERLING DRUG Inc. 27 April, 1967 [2 May, 1966], No. 19575/67. Heading C2U. The invention comprises 17-cyclopropyl-17- hydroxy- and 17-cyclopropyl-#<SP>16</SP>-steroids of the androstane and estrane series, excluding those 3 - oxo - 17 - hydroxy - #<SP>4</SP>- and 3 - alkoxy - 17 - hydroxy-#<SP>1,3,5(10)</SP>-steroids which have no other nuclear double bonds and no 16-substitution. The 17α-cyclopropyl-17#-hydroxy products are prepared from the corresponding 17-ones by reaction with cyclopropyllithium or a cyclopropyl magnesium halide; or from the corresponding 17α-vinyl-17#-ols by reaction with a methylene dihalide and catalyst or with dimethylmethylenesulphonium oxide. When the starting material is a 3-alkoxy-2,5(10)-diene, the product will, however, be a 3-oxo-5(10)-ene. In addition, 17α-cyclopropyl-17#-hydroxy-3- alkoxy - 2,5(10) - diene and 17α - cyclopropyl - 17# - hydroxy - 3 - oxo - 5(10) - ene products are obtainable by reduction followed by hydrolysis of 17α - cyclopropyl - 17# - hydroxy - 3 - alkoxy - 1,3,5(10)-trienes. Further, 17α-cyclopropyl-17#- hydroxy-4-ene products having a heterocyclic ring fused to the 2,3-position are obtainable from the corresponding 4-en-3-ones via 2- hydroxymethylene - 4 - en - 3 - ones or 2 - bromo- 4-en-3-ones. The 17-cyclopropyl-#<SP>16</SP> products are prepared from the 17α-cyclopropyl-17#-ols by heating with a dehydrating agent. 17#- Cyclopropyl - 3 - methoxy - 1,3,5(10) - estratriene - 16#,17α - diol and its 16 - (3 - chlorobenzoate) are prepared from 17-cyclopropyl-3- methoxy - 1,3,5(10),16 - estratetraene. Other product interconversions described are of the types: (a) 3-oxo # 3-OH; (b) 3-OH # 3-OAcyl; (c) #<SP>5(10)</SP>-3-oxo ##<SP>4,9</SP>-3-oxo; (d) introduction of a 2-hydroxymethylene group into 3-oxo compounds; and (e) conversion of 2 - hydroxymethylene - 3 - oxo compounds into [2,3-d] - isoxazole and [3,2-c] - pyrazole compounds. 17α - Cyclopropyl - 4 - androsten - 17# - ol - 3 - one is prepared from the 3-(pyrrolidyl enamine) of 4 - androstene - 3,17 - dione using cyclopropyllithium. 17α - Cyclopropyl - 3 - methoxy - 1,3,5(10) - estratrien - 17# - ol is prepared from the corresponding 17-one with cyclopropyllithium. 17α - Cyclopropyl - 4 - estren - 17# - ol - 3 - one (I) is prepared from the corresponding 5(10)- ene with NaOH. 17α - Cyclopropyl - 2 - hydroxymethylene - 4 - estren - 17# - ol - 3 - one and 17α - cyclopropyl - 2α - bromo - 4 - estren - 17# - ol - 3-one are both obtained from (I). 17α-Vinyl-5α- androstane - 3#,17# - diol is prepared from 5α- androstan-3#-o1-17-one. The compounds of the invention are said to possess estrogenic, myotrophic, progestational, pituitary inhibiting, hypocholesteremic, ovulation-blocking and pregnancy-blocking activities, and may be made up with carriers into pharmaceutical compositions for oral or parenteral administration.
Patent GB-1126669-A (GB)
Title: Process for production of basically substituted phthalazones
Inventor: ENGELBRECHT HEINZ-JOACHIM
IPC: C07D237/32
Filed: 1967-04-28
Abstract: 1,126,669. Preparation of basically substituted phthalazines. DEUTSCHES HYDRIERWERK RODLEBEN VEB. 28 April, 1967, No. 19621/67. Heading C2C. Phthalazines of formula wherein R 1  is aryl or aralkyl optionally substituted in the nucleus by halogen, R 2  is C 2-5  straight or branched alkylene, R 3  and R 4  are C 1-3  alkyl or together with the nitrogen atom form a heterocyclic ring are prepared by condensation of a phthalazone of formula and a water-soluble salt of a compound of formula Hal-R 2 -N.R 3 .R 4  where Hal denotes halogen, the reaction being carried out in the presence of water and alkali at between 50 and 60‹ C.
Patent GB-926693-A (GB)
Title: Improvements in or relating to vehicle brake systems
Inventor: ROLT ANTHONY PETER ROYLANCE
IPC: B60T8/74
Filed: 1958-06-19
Abstract: 926,693. Anti-skid brake control units. HARRY FERGUSON RESEARCH Ltd. Sept. 18, 1959 [June 19, 1958; April 10, 1959], Nos. 19644/58 and 12206/59. Class 103 (1). [Also in Groups XXIV and XXXI] A four-wheel drive motor vehicle has a controlled intermediate differential gear 15, 16 interposed between front and rear propeller shafts 18, 19 which drive the wheels through differential gears 20, 21, and an anti-skid device 40 driven by a rotary engine-driven component 11 connected to the input components of differential gear 15, 16, the device 40 having a flywheel which operates an actuator 41 to reduce brake action in the event of abnormal deceleration of component 11. The brakes 26, 27 are applied by a pedal 30 aided by a vacuum servomotor 32, 33 connected to the engine manifold via pipes 34, 35. Should brake application cause component or shaft 11 to decelerate at an excessive rate, the actuator 41 admits atmosphere to pipe 34 to disable servomotor 32, 33 and so reduce the pressure exerted by pedal 30 on the hydraulic system 31. In an alternative arrangement. actuator 41 supplies oil from pipe 57 to a normally starved pump 55 which supplies fluid to motor 52, 53 to oppose the manual pressure on pedal 50 and so reduce braking pressure. The anti-skid device, Fig. 3, comprises a driven shaft 11A carrying rollers 92 engaging a cam 91 fixed to a yoke 95 splined to a rotary shell 93; a central bearing 96 of the yoke 95 receives the end of stem 82 of a valve 81 biased to the closed position by spring 97, a spring 88 biases cam 91 against rollers 92. Rotation of shaft 11A drives the shell 93 via rollers 92, cam 91 and yoke 95, and the shell drives a flywheel 87 through clutch 102. Should shaft 11A decelerate too rapidly, then flywheel 87 drives yoke 95 relative to shaft 11A causing rollers 92 to ride up cam 91 and move the yoke against spring 88 to open valve 81 to connect ports 86 and 86. When motor 32, 33 is used the ports 84, 85, 86 are connected to pipes 34, 35 and to atmosphere respectively; and when motor 52, 53 is used the ports 85, 86 are connected to an oil sump and pump respectively and port 84 is plugged. In Fig. 2, not shown, the valve has a further stem which has a lost-motion connection with a pendulum. When tyre adhesion is good, deceleration of shaft 11 can be large without the wheels locking, the deceleration causes the pendulum to swing to take up lost-motion and prevent the valve opening, but for poor adhesion (icy roads) the wheels lock and vehicle deceleration is low, so the pendulum does not move and the anti-skid unit causes the valve to open. Specifications 731,938, 770,323 and 860,546 are referred to.
Patent GB-782116-A (GB)
Title: Bis(carboxypentoxy)alkanes and bis(carbalkoxypentoxy)-alkanes and their preparation
IPC: C07C51/08
Filed: 1955-07-07
Abstract: The invention comprises bis-(5-carboxypent-1-oxy) alkanes having the formula R(OC5H10-COOH)2 and bis (5-carbaloxypent-1-oxy) alkanes having the formula R(OC5H10COOR1)2, in which R is an alkylene group of 2 to 8 carbon atoms and R1 is an alkyl group of 1 to 18 carbon atoms.  The bis-(5 carboxy-pent-1-oxy) alkanes may be prepared by reacting the corresponding bis-(5-cyanopent-1-oxy) alkane (prepared as described in Specification 778,934) with excess water and a compound that produces a hydrogen ion in aqueous solution, preferably at temperatures of 50-125 DEG  C.  The esters may be prepared by reacting the corresponding bis-(5-cyanopent-1-oxy) alkane with water, an inorganic acid and excess of an alcohol R1OH, or by esterifying the bis-(5-carboxypent-1-oxy) alkane with an alcohol R1OH, preferably at temperatures in the range of 60 DEG  to 200 DEG  C. Suitable inorganic acids are hydrochloric, hydrobromic and sulphuric acids. Typical alkylene groups represented by R are ethylene, propylene, isopropylene, butylene, isobutylene, pentylene, hexylene, isohexylene, heptylene, 1,1,2 - trimethylpentylene, and octylene.  R1 represents alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, isohexyl, 2-ethylhexyl, octyl, t-octyl, decyl, isodecyl, t-decyl, tetradecyl, and octadecyl. In examples, (1) 1,2-bis-(5-carboxypent-1-oxy) ethane is obtained by hydrolysis of 1,2-bis-(5-cyanopent-1-oxy) ethane with aqueous sulphuric acid and then esterified with octyl alcohol to give 1,2-bis-(5-carboctoxypent-1-oxy) ethane; (2) 1,2-bis-(5-cyanopent-1-oxy) ethane is heated with 2-ethylhexanol in the presence of gaseous hydrochloric acid to give 1,2-bis-(5-carbo-21-ethylhexoxypent-1-oxy) ethane; 1,2-bis-(5-carbisobutoxypent-1-oxy) ethane is similarly prepared; (3) 1,2-bis-(5-cyanopent-1-oxy) ethane is heated with hexanol and gaseous hydrochloric acid to give 1,2-bis-(5-carbohexoxypent-1-oxy) ethane; 1 : 6-bis-(5-carbo-t-octoxypent-1-oxy) hexane is similarly obtained; (4) 1 : 3-bis-(5-cyanopent-1-oxy) propane is heated with octadecyl alcohol and gaseous hydrobromic acid to give 1 : 3-bis-(5-carboctadecoxypent-1-oxy) propane.  1 : 4-Bis-(5-carbododecoxypent-1-oxy) butane is similarly prepared; (5) 1 : 8-bis-(5-cyanopent-1-oxy) octane is heated with ethanol and gaseous hydrochloric acid to give 1 : 8-bis-(5-carbeth-oxypent-1-oxy) octane; 1 : 8-bis-(5-carbomethoxypent-1-oxy) octane is similarly prepared. The products are useful as plasticizers, synthetic lubricants and oil additives.
Patent GB-1422945-A (GB)
Title: Roof covering
IPC: E04D11/02
Filed: 1972-04-27
Abstract: 1422945 Laminates PERMANITE Ltd 30 March 1973 [27 April 1972] 19668/72 Heading B5N [Also in Division E1] A roofing panel comprises a substrate panel 2 having on a face thereof a coating 4 of adhesive covered by a release sheet 6, the adhesive coating being spaced inwardly from the edge of the substrate panel around the whole of the periphery 8 of the substrate panel. The substrate panel may comprise an expanded plastics material, e.g. polystyrene or polyurethane, cork, e.g. baked granular cork, foamed glass or vegetable or inorganic fibres, e.g. glass fibres or wood fibres; the adhesive may comprise a heat-actuatable bitumen and the release sheet a film or sheet of polyethylene or paper.