baber/WOPTO huggingface dataset:
Patent GB-752150-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q1/12
Filed: 1954-06-09
Abstract: 752,150. Friction grip fastenings. ALLEN, E. H. March 15, 1955 [June 9, 1954], No. 16926/54. Class 44. [Also in Group XL (c)] To secure one rod or tube adjustably in position on another, such as when mounting a parasitic aerial element on a supporting crossarm, the bearer member has secured thereon or therein a mass of resilient material, such as rubber or cork, the rod or tube being retained in the required position by being frictionally engaged against or through the resilient material. In the preferred embodiment the bearer member 1 is a tube having oppositely positioned holes 2, 3 in its wall through which the tube 4 can slide freely. A plug of resilient material 5 is located inside member 1 and has a transverse hole 6 aligned with the holes 2, 3 and such that when the tube 4 is placed in position it is held securely by friction. The tube 4 may be provided with an annular shoulder 7 which rests against tube 1 when the former is correctly positioned.
Patent GB-754593-A (GB)
Title: Improvements in or relating to the preparation of supported silver catalysts and their use in the production of olefin oxides
IPC: B01J23/50
Filed: 1954-06-10
Abstract: Olefines are oxidized with molecular oxygen to olefine oxides using a silver catalyst on a support, preferably alumina, prepared by impregnation of the support with a silver compound and reduction of the latter in a plurality of steps (see Group III). Thus ethylene oxides are formed from ethylene by oxidation at 150 DEG -400 DEG  C., preferably 200 DEG -300 DEG  C.  In an example a gaseous mixture of ethylene, ethane, carbon dioxide, water and nitrogen is heated at 252 DEG  C. and 115 lb./sq. in. gauge pressure with a catalyst containing 4.8 per cent by weight of silver deposited on alumina.ALSO:A silver catalyst, suitable for the oxidation of alkenes, is prepared by impregnating one of the usual catalytic supports, such as alumina, with a solution, suspension or emulsion containing a silver compound and reducing the compound to metallic silver in a plurality of impregnation and reduction steps such that the required amount of silver is built up on the support.
Patent GB-732686-A (GB)
Title: Steroids
IPC: C12P33/00
Filed: 1952-07-08
Abstract: The invention comprises 11(a )-hydroxy-17(a )-progesterone and acyl esters thereof, and their preparation by bringing 16-dehydroprogesterone into contact with oxygenating substances produced by a growing fungus of the genus Rhizopus, e.g. Rhizopus nigricans, under aerobic conditions.  The fermentation may be effected in the presence of a nutrient medium for the fungus. Subsequently the hydroxy group in the 11-position may be esterified with an acylating agent, e.g. acetic anhydride, dimethyl and trimethylacetic anhydride, benzoyl chloride and b -cyclopentylpropionyl chloride.  Other esterifying agents containing up to eight carbon atoms may be used.
Patent GB-612929-A (GB)
Title: Improvements in or relating to electric phase-meters
IPC: G01R25/00
Filed: 1946-06-06
Abstract: 612,929. Converting. PHILIPS LAMPS, Ltd. June 6, 1946, No. 17291. Convention date, Sept. 22, 1945. [Class 38 (ii)] [Also in Group XXXVI] A phase-meter in which the polarity and value of the output voltage vary with the phase difference between an A.C. voltage and voltage pulses of the same or a sub-multiple frequency, . comprises two thermionic valves 4, 5 connected in anti-parallel relationship in series with a parallel combination of resistance 2 and condenser 1 from which the output voltage is taken, the series arrangement being supplied from a transformer 3 to which the A.C. voltage is applied, the voltage pulses being applied to the grids of valves 4, 5. The time constant of the circuit is made so small that the condenser voltage attains at once the instantaneous value of the A.C. voltage, and the time constant of the condenser 1, resistance 2 parallel arrangement is made so large that the condenser volts remain constant during the intervals between the pulses. Fig. 2 shows the condenser voltage 10 the same as that value of the A.C. voltage at the instants pulses 9 render valve 4 conductive, and how the condenser voltage 101 is reversed in sign when the phase of the pulses 9<SP>1</SP> is such that they make valve 5 conductive. The Specification as open to inspection under Sect. 91 comprises also a wave shape-changing circuit in which the frequency of the pulses is greater than that of the input A.C. voltage and the output voltage is A.C. with a stepped wave-form, Fig. 2 (Cancelled). Frequency changing is also mentioned. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1358347-A (GB)
Title: Propylene oxide polymerisation process
IPC: C08G65/08
Filed: 1972-04-14
Abstract: 1358347 Propylene oxide polymerization KURARAY CO Ltd 14 April 1972 [17 May 1971] 17354/72 Heading C3R Propylene oxide polymers and copolymers are obtained by polymerizing in the presence of an ionic catalyst propylene oxide, alone or with other monomers, in a C 4  aliphatic hydrocarbon solvent or a mixture thereof with other solvents in which the said hydrocarbon comprises the majority proportion over the combined proportions of all other solvents present, using sufficient pressure to maintain the reaction medium in a liquid state, the reaction temperature being maintained, at least at the final stage of the reaction, between 0‹ and 150‹ C. and also within one of the bands (T a  to T a +50‹ C.) or (T b  to T b  - 50‹ C.), wherein T a  is the sum of the individual products of a volume fraction of a particular solvent or monomer ingredient and the corresponding lower critical solution temperature of a high molecular weight propylene oxide polymer product, and T b  is the sum of the individual products of the volume fraction of a particular solvent or monomer ingredient and the corresponding upper critical solution temperature of a high molecular weight propylene oxide polymer product in said ingredient. "Lower and upper critical solution temperatures" are defined as the lowest temperature and the highest temperature respectively at which phase separation occurs for a solution of high molecular weight propylene oxide polymer in the chosen monomer or solvent ingredient. Examples describe the preparation of propylene oxide homopolymers and propylene oxide copolymers with allyl glycidyl ether using as solvents n-butane, 2-methylpropane/n-hexane, n - butane/n - hexane, n - butane/2- methylbutane and n - butane/2 - methylpropane/n-pentane, and using as catalysts diethyl zinc/water, diethyl zinc/1,3-propandiol and diethyl zinc/polytetramethylene glycol 2000. Uses.-Preparation of products suitable for use as rubbers.
Patent GB-1353992-A (GB)
Title: Stretch-forging apparatus
IPC: B21J7/18
Filed: 1971-05-27
Abstract: 1353992 Forging; making tubes F KOCKS 27 May 1971 [22 June 1970] 17377/71 Addition to 1335611 Headings B3H and B3A A stretch forging machine has a set of swing- ing jaws arranged to be driven by crank or eccentric drive and the working surfaces of the jaws are shaped to define a closed sizing gap when the jaws are closed together. The gap is shaped to allow the workpiece to flow radially over part of its surface in the entry zone of the gap. In one embodiment with four jaws 2a, Fig. 6, the jaws have a transverse curvature in the initial zone whose radius R 1  is greater than the distance A from the jaw surface to the workpiece axis. Thus the jaws contact the workpiece centrally and allow it to broaden. In a second embodiment, Fig. 7, the said distance is equal to the curvature R 2  of the jaw surface, however, the edge zones T 1 , T 2  are straight to allow the workpiece to broaden. The working surfaces of the jaws gradually change, Figs. 2-5 (not shown), so that at the exit zone they define a circular bore. The workpiece is rotated after each forging stroke. The tube reduced by the stretch forging machine may be subsequently stretch rolled. The working surfaces of the jaws are shaped by machining. Specification 1,353,993 is directed to the machining of the jaws.
Patent GB-889035-A (GB)
Title: Improvements in and relating to control devices
IPC: F16H35/10
Filed: 1958-05-30
Abstract: 889,035. Gearing for stopping and starting machinery; epicyclic gearing. SOC. AUXILIAIRE D'INDUSTRIE (SADI) S.P.R.L. May 30, 1958 [June 3, 1957], No. 17389/58. Classes 80 (1) and 80 (2). Gearing for stopping machinery on overload comprises an input sun-wheel shaft 1 and output planetwheel shaft 5 and reaction ring 6 which is positively held for a predetermined number of revolutions under control of a delaying device 16 and thereafter is held frictionally by a torque limiter 7 which on overload slips, permitting rotation of the ring gear 6 and operation of a signal and stop device 35 of the driving motor. On starting, the ring 6 is positively held in one direction by one (29) of two oppositely-directed toothed plates 28, 29, which engage ratchet teeth 9, 10 on the casing. After a predetermined number of revolutions the delay device 16, described below, permits rotation of a shaft 22 and discs 23, 24 splined thereto whereupon balls 25, in helical cam grooves between the plates 23, 24 and 28, 29, move the latter axially, engaging the oppositelydirected ratchet clutch 9, 28 and disengaging the clutch 10, 29 thereby releasing the positive hold on the ring gear 6 in the reaction direction, the ring being then held by a member 7 frictionally between a fixed flange 9 and an axially-slidable adjustably spring-pressed flange 10. On overload the member 7 slips, permitting rotation of the ring 6 which breaks the drive. The ring 6 takes along a member 33, Fig. 4, which frictionally engages an eccentric cam groove 34 in the ring gear until an abutment 39 on the member 33 engages a piston 41, whereupon the member 33 slips and after half a revolution of the ring gear the abutment 39 moves under the piston 41 (Fig. 5, not shown), which engages a lip 37 on a member 35 rotation ally fixed to the member 33, and during the next half revolution, the abutment 39 rises, pushing up the piston 41 to the level of the member 35 which then rotates with the ring gear 6 until it abuts a stop 42, maintaining the piston in the stop position of the motor for that direction of rotation. On rotation of the input shaft in the opposite direction the ring gear and members 33, 35 are permitted a slight rotation by a lost-motion connection between the torque limiter 7 and ring gear to reset the stop device 35 before being held against rotation. The delay device 16 comprises a lug on the planet carrier 3 which turns a toothed pinion 16 carried by a member 21 fast with the shaft 22 through part of a revolution for each revolution of the carrier 3. Lugs 17, 18 on the pinion 16 engage recesses in plates 19, 20 and turn the latter until one of the lugs engages a smaller recess whereupon the whole device is locked solid to rotate the shaft 22. The signal may be a bell as a light which indicates that the motor is stopped.
Patent GB-435336-A (GB)
Title: Process for the manufacture of cyclic ketones
IPC: C07C45/42
Filed: 1934-06-13
Abstract: Cyclic ketones are prepared by condensing compounds having the formula <FORM:0435336/IV/1> in which A and B represent the same or different groups which are derived from carboxylic groups but contain no reactive hydrogen atoms, by means of condensing agents having the formula <FORM:0435336/IV/2> Me X(m - 1) in which R1 and R2 indicate alkyl, aralkyl, aryl or alicyclic radicles, Me and alkali, alkaline earth or earth metal, X a halogen or <FORM:0435336/IV/3> and m the valency of the metal, and saponifiying the products. The carboxylic acid derivatives which may be subjected to the condensation are dicarboxylic esters and dicarboxylic acid amides and imino-esters and amidines in which hydrogen atoms of the amino and imino groups are completely substituted.  One of the groups may be a nitrile group. In examples: (1) hexadecane-1 : 6-dicarboxylic acid dimethyl ester dissolved in ethylaniline is run into the reaction product of ethylaniline and sodamide and the ethylanilide of cycloheptadecanone - 1 - carboxylic acid - 2 obtained is boiled with sulphuric acid whereby cycloheptadecanone is produced; hexadecane - 1 : 16 - dicarboxylic acid chloride, prepared from the acid by means of thionylchloride and the corresponding diethylanilide, prepared by reacting the dichloride with diethylaniline may be used instead of the dimethylester; (2) ethereal solutions of cyanheptylic acid diethylamide and lithium diethylamide are run gradually into boiling ether and the resulting a -cyansuberone is saponified to give suberone; cyanheptylic acid diethylamide is obtained from 7-bromheptylic acid by heating with thionylchloride, condensing the resulting acid chloride with diethylamine and treating with potassium cyanide; cyanheptylic acid ethyl ester which may also be used may be prepared from 7-bromheptylic acid by esterifying and reacting with potassium cyanide.  Samples have been furnished under Sect. 2(5) of cyclic ketones obtained by saponification of the products derived from: (1) suberic acid dimethylester and sodium ethylaniline; (2) adipic acid dimethylanilide and sodium methylaniline and (3) suberic acid dimethylanilide and potassium methylaniline.
Patent GB-292482-A (GB)
Title: Improvements in and relating to compression refrigerating machinery
IPC: F25B41/06
Filed: 1928-06-18
Abstract: 292,482. Soc. Anon. Italiana Nord Frigor. June 18, 1927, [Convention date]. Refrigerating, compression machines for. - The flow of liquid refrigerant, preferably sulphurous anhydride, through passages 16 in the tube 15 from the condenser 5 of a compression refrigerating machine to the evaporator A is controlled automatically by a float-valve 17 in the evaporator; the refrigerant level at which the valve will close the passage is regulated by ballast, such as oil, introduced into the float 19 through the orifice 20. The compressor 3 is driven through a shaft 4, passing through the condenser, and pulley gearing from an electric motor 1, the shaft of which carries a fan 10 for directing air over the coil 7 through which the compressed refrigerant passes to the condenser. The condenser is air-cooled by a fan 11 secured to the pulley 3.
Patent GB-903835-A (GB)
Title: Improvements in or relating to engine mountings for gas turbine engines
Inventor: KERRY THOMAS HENRY
IPC: B64C29/00
Filed: 1960-05-18
Abstract: 903,835. Gas turbine engines. ROLLSROYCE Ltd. May 10, 1961 [May 18, 1960], No. 17616/60. Addition to 875,295. Class 110 (3). [Also in Group XXXIII] An aircraft structure includes a gas turbine engine mounted vertically by an engine mounting device as claimed in the parent Specification, additional mounting means being provided to resist downward loads on the engine. A gas turbine engine 10 is supported by trunnion mounting devices 19 and by a convex annular surface 23 surrounding the turbine casing, abutting against a concave annular surface 24 on a mounting ring 25 secured to the engine supporting structure. A movable member may be provided for the propulsion nozzle to deflect the propulsive gases from the vertical. In an alternative embodiment the annular surface is on the compressor casing and the trunnion mountings 19 are immediately below it (Fig. 2). Each mounting 19 comprises a block 51, a part spherical member 52 which may slide in the block 51 and a pin 53. The member 52 allows for any misalignment of the engine. The compressor casing is formed from a reinforced thermosetting resinous material and the annular abutting surfaces evenly distribute the load. When the engine is inoperative, it drops by an amount determined by the clearances in the trunnion mounting 19.
Patent GB-1186673-A (GB)
Title: Improvements in or relating to Systems for Detecting the Presence of Objects in a Monitored Area
Inventor: ARMSTEAD WALTER EDWARD
IPC: G08B13/24
Filed: 1966-04-22
Abstract: 1,186,673. Intruder alarm systems. AUDAC (AUDIO ASSOCIATES) Ltd. 14 April, 1967 [22 April, 1966], No. 17846/66. Heading G4N. An intruder alarm comprises :a frequencymodulated transmitter and a superheterodyne receiver arranged to produce a visible and/or audible alarm signal when a moving body changes the standing wave pattern in the protected area.
Patent GB-826117-A (GB)
Title: Improvements in or relating to methods of manufacturing electrically insulating panels having a conductive pattern and panels manufactured by such methods
IPC: H05K3/38
Filed: 1958-06-04
Abstract: 826,117. Printed circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 4, 1958 [June 7, 1957], No. 17865/58. Class 37. A method of manufacturing a printed circuit panel, in which an insulating layer is provided on each side with a metal layer, parts of which, in the form of the required conductive pattern, are covered with a protective layer, the remaining parts being removed by dissolving or etching the metal. The layer consists of a small number of paper sheets impregnated with a partially cured thermo-setting synthetic resin, and after removing the non-covered parts of the metal layer it is divided parallel to its surface into two separate insulating layers, each having a conductive pattern on one side. At least one of these layers is then joined to an insulating substratum in a heated press, during which process the conductive pattern is pressed into the insulating layer and the thermosetting resin fully cured. In the embodiment shown, thin metal foils 3 and 4 of, for example, copper or aluminium, are laid on each side of the stack 2 which consists of four paper sheets impregnated with a thermosetting resin, for example a phenolformaldehyde or a cresol-formaldehyde condensate. Before being laid on the stack the foils are preferably provided with an adhesive layer of, for example, a combination of butadiene-acryl nitryl and phenol-aldehyde condensate, or condensates of malamine and formaldehyde or epoxy resins. The stack and the metal foils are then pressed in a heated press, which part cures the resin and causes the foils to adhere to the stack, etching resists are then provided on the metal foils by silk screen stencil and the plate subsequently immersed in an etching bath, e.g. ferric chloride. For detailed patterns the etching resist is preferably provided by photographic means, the whole surface first being covered by, for example, a layer of polyvinyl butyral sensitized by a bichromate. After etching, the resist may be removed by alcoholic hydrochloric acid, and the plate divided into two separate layers of 41 and 42. One of these layers is then laid on an insulating plate 51, which may also be a thermosetting resin and the resultant stack pressed in a heated press 50. The metal pattern thus sinks into the layer 41 and at the same time the resin is fully cured, and adhesion is obtained between the layer 41 and plate 51. Alternative methods of forming the conductive pattern are possible, for example electro-depositing, and patterns may be provided on both sides of the plate 51. The layers may be mounted on the plate with the conductive patterns on the side adjacent to the plate and since the layer is thin and consequently flexible the final shape after pressing need not be flat.
Patent GB-1090751-A (GB)
Title: Improvements relating to portable shelters
IPC: B60J11/00
Filed: 1963-05-06
Abstract: 1,090,751. Vehicle hoods. B. A. PARR. May 6, 1964 [May 6, 1963], No. 17866/63. Heading B7B. A flexible sheet 1 is supported over the roof of the vehicle by transverse struts and the ends of the sheet are secured to members 6 rotatably mounted on supports 8 secured to the vehicle bumpers. Rotation of the members 6 outwardly tensions the sheet. Alternatively the ends of the sheet may be secured to the bumpers by straps.
Patent GB-241308-A (GB)
Title: Improvements in brakes for the road wheels of motor and other vehicles
IPC: F16D49/10
Filed: 1924-07-26
Abstract: 241,308. Nott, C. H. July 26, 1924. Band; blocks acting on drums.-An external band brake for the road wheels of vehicles comprises two sections B, B<1> normally held clear of the brake drum by springs P, P', and adapted to be engaged with it by a roc. N acting on bellcrank levers D, D<1> respectively pivoted at E, E<1> and connected to the ends of the band sections by tension and compression :inks H, L and H', L<1>. According to the Provisional Specification, brake shoes may replace the sections B, B'. Specification 3368/15 is referred to.
Patent GB-168212-A (GB)
Title: Improvements in or relating to knitted neckties and the method of making the same
IPC: A41D25/00
Filed: 1920-06-30
Abstract: 168,212. Wardle & Davenport, Ltd., and Jones, J. A. June 30, 1920. Neck-ties.-Tubular knitted neck-ties with a narrow neck portion and flared ends are made by cutting, shaping and seaming tubular or other knitted fabric thereby obviating the necessity of fashioning by knitting. A tubular strip is cut away at 3, Fig. 2, and the cut edges fastened together as shown in Fig. 3. In addition to the cut edges 3, a seamless knitted tube may be cut longitudinally. In a modification, the cut portion is differently shaped to that shown and twc longitudinal cuts are made. In another modification, a flat strip is cut, folded, and seamed.
Patent GB-1094582-A (GB)
Title: The preheating of gases supplied to magnetohydrodynamic generators
IPC: H02K44/08
Filed: 1965-04-28
Abstract: 1,094,582. MHD power plant. SIEMENSSCHUCKERTWERKE A.G. April 28, 1965 [May 2, 1964], No. 17972/65. Heading H2A. [Also in Division F4] Combustion air for an M.H.D. generator 2 (see also Fig. 2, not shown) is preheated in a thermal regenerator having as a heat transfer material a molten substance such as glass, metal or metal oxide, and comprising chambers 3 and 7 through which respectively pass hot exhaust gases from the generator and highpressure combustion air for the generator, in heat exchange in said chambers with a surface of the melt. The interior surface of each of the chambers comprises a refractory mass or, as shown, a plurality of chamotte bricks 12, the air heating chamber 7 having a further layer of the bricks 12 and also a pressure-resistant outer shell. Movement of the heat transfer material from one chamber to the other is effected by a transfer container 9 which is positioned to receive the contents of one chamber (e.g. the contents of chamber 3 when they are sufficiently heated) and is then positioned on the other chamber (e.g. the chamber 7) to enable its contents to be discharged into that chamber. A plurality of the containers 9 may be utilized as shown. Transfer of the heat transfer material from one chamber to the other may be effected by differential fluid pressure induced e.g. by a nozzle (36, Fig. 6) in the combustion air inlet 8 to the chamber 7. The respective chambers are in this case interconnected by flow ducts (10, 35, Fig. 6). In a further arrangement referred to but not illustrated, the air and heating gas chambers are arranged in a single container for the molten heat transfer material, the respective chambers being defined by a partition which extends from above to a short distance below the level of the melt.