baber/WOPTO huggingface dataset:
Patent GB-259984-A (GB)
Title: Improvements in or relating to the electrolytic separation of chromium from aqueous solutions of chromium
IPC: C25C1/10
Filed: 1926-10-15
Abstract: 259,984. Siemens & Halske Akt.- Ges. Oct. 16, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Chromium, depositing.-The electrolyte is prepared by adding to a solution of chromium trioxide a foreign metal or metals or compounds of such metals which are soluble in chromic acid. Metal salts the bases of which are not separable in acid solutions are, preferably used. Suitable compounds are zinc sulphate, lead acetate, copper hydroxide, and aluminium hydroxide; a mixture of these compounds may be employed. The foreign metals are not deposited.
Patent GB-1009764-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/62
Filed: 1962-07-05
Abstract: 1,009,764. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. July 5, 1962 [July 11, 1961], No. 25753/62. Drawings to Specification. Heading H4K. In a PBX having two or more attendants' positions and a plurality of incoming trunk lines from the central office, the trunk lines are arranged in groups and when only one position is manned an action at the PBX allows one or more groups to be rendered inaccessible at the central office subject to the lines forming the group being in idle condition. As described, some of the trunk lines have appearances at both of two positions while others terminate at only one. A key at the PBX operates over an auxiliary wire a relay at the central office, but the disabling effect is delayed until an AND gate controlled from the sleeve wires of the trunk lines concerned indicates that they are all in idle condition.
Patent GB-1311610-A (GB)
Title: Method of preventing the polymerisation of liquid vinyl monomer
IPC: C08F2/38
Filed: 1971-04-19
Abstract: 1311610 Inhibitors for unsaturated esters JAPANESE GEON CO Ltd 19 April 1971 [1 April 1970] 25888/71 Heading C2C Acrylic and methacrylic acid esters are inhibited against polymerization by incorporating therein hexamethylene tetramine in the liquid monomer. Methyl to butyl, n-octyl, 2-ethylhexyl, lauryl, cetyl and stearyl esters are mentioned and an addition of 0À001 to 3% is used.
Patent GB-874757-A (GB)
Title: Improvements in electric heaters
Inventor: ROBERTSON GEORGE DICKIE
IPC: H05B3/42
Filed: 1956-08-24
Abstract: 874,757. Electric resistance heaters. BABCOCK & WILCOX Ltd. Nov. 25, 1957 [Aug. 24, 1956], No. 25964/56. Class 39(3). An electric heater comprises an aluminium alloy tube 1 having a continuous dense anodised insulating film 5 on its interior surface which is in intimate contact with a helical resistance ribbon 2 the ends of which are secured to cylindrical brass terminal blocks 4 which close the ends of and are insulated from the tube 1 which may have heat transfer fins 8. A sprayed aluminium oxide film, which can also be applied to the radially outer face 7 of the ribbon 2, may replace the anodised film 5 and in this case the tube 1 may be of a metal such as stainless steel. A tubular resistance element may replace the ribbon 2 (Fig. 3, not shown). In a modification, Fig. 4, having a central heating passage 32 for a fluid, a tubular resistance 31 is held at its ends by terminal assemblies 33 each comprising inner and outer annular brass blocks 34, 35 which are insulated from and support an inner tube 40, having an insulating aluminium oxide film 44 on its outer surface, and an outer tube 41, having an aluminium oxide film 45 on its inner surface, both films being in intimate contact with the element 31.
Patent GB-1064429-A (GB)
Title: Improvements relating to diffusion pumps
IPC: F04F9/00
Filed: 1964-06-23
Abstract: 1,064,429. Baffles. LEYBOLD HOLDING A.G. June 23, 1964 [Aug. 10, 1963], No. 25985/64. Heading F1E. In a diffusion pump having at least one uncooled inner baffle 4 and at least two cap-shaped interconnected baffles 7, 9 supported from an inverted jet nozzle 3, the outermost baffle is cooled by conventional cooling means to a temperature below the condensation point of the operating fluid. The outermost baffle or baffles may be hollow for the circulation of cooling water and/or condensed cooling gas. The baffles 4, 7 and 9 may be of aluminium or copper and the bulbs 5, 6 and 8 of a material having low thermal conductivity.
Patent GB-227532-A (GB)
Title: Improvements in india-rubber cushioning springs
IPC: B60G11/22
Filed: 1923-10-19
Abstract: 227,532. Spencer, Moulton, & Co., Ltd., G., and Glascodine, R. T. Oct. 19, 1923. lndia-rubber springs.-Springs, specially for location between the axles and underframe members of motor vehicles, are made of solid india-rubber of substantially hour - glass shape. Each spring may be an integral unit, or as shown may be constituted by two frusto - conical bodies 1, 2, the apex of the part 1 being formed with a shallow saucer-shaped recess to receive the rounded apex of the part 2. Either or both of the apices may be faced with metal, vulcanite, &c., and the ends of the spring are seated in positioning cups 3 the walls of which support the spring when compressed. The cross-section of the spring may be circular, oval, polygonal, &c. and its sides may be straight or curved. Specification 196,154 is referred to.
Patent GB-843353-A (GB)
Title: Improvements in or relating to 6-methyl steroid compounds
Inventor: ELLIS BERNARD
IPC: G03C1/485
Filed: 1957-08-19
Abstract: The invention comprises 6-methyl-3-oxo-4,6-dienic steroids of the androstane and pregnane series having apart from any substituent at the 17-position the general formula:  <FORM:0843353/IV(b)/1> and the preparation thereof by reacting 3b -hydroxy or 3b -acyloxy-6-oxo-steroids of the androstane and pregnane series having apart from any substituent at the 17-position the general formula: <FORM:0843353/IV(b)/2> wherein R represents hydrogen or an acyl group, with a methyl magnesium halide such as the bromide or iodide, to form 6b -methyl-3b ,5 a ,6-trihydroxy steroids of the androstane and pregnane series having apart from any substituent at the 17-position of the general formula:  <FORM:0843353/IV(b)/3> oxidising the 3b , 5 a ,6-trihydroxy-steroids e.g. with chromium trioxide in acetic acid or pyridine, to the corresponding 5 a ,6-dihydroxy-6-methyl-3-oxo-steroids of the androstane and pregnane series having from any substituent at the 17-position the general formula:  <FORM:0843353/IV(b)/4> and dehydrating the 5 a ,6-dihydroxy-6-methyl-3-oxo steroids with a source of hydrogen ions e.g. hydrogen chloride.  The process may be applied to a 3b -acyloxy-5 a -hydroxyandrostan-6-one which may be additionally substituted at C17 by hydroxyl with or without alkyl, alkenyl or alkynyl groups containing not more than 5 carbon atoms, and 3b -acyloxy-5 a -hydroxypregnan-6-one which may be additionally substituted by an acyloxy or hydroxy group at C20 with or without acyloxy or alkyl groups containing not more than 5 carbon atoms at C17 or C21.  In the example the following intermediate and final products are prepared by the above methods:-17 a -ethynyl-6-methylandrostane-3b ,5 a ,6,17b -tetrol, 17 a -ethynyl-6-methyl-androstane-5 a ,6,17b -triol-3-one, and 17 a -ethynyl-17b -hydroxy-6-methylandrosta-4,6-dien-3-one; 6-methylpregnane-3b  5 a ,6,20-tetrol, 6-methylpregnane-5 a ,6-diol-3,20 -dione and 6-methylpregna-4,6-diene-3,20-dione; 6,17 a -dimethylandrostane-3b ,5 a ,6,17b -tetrol, 6,17 a  - dimethylandrostane - 5 a ,6,17b  - triol - 3 - one, and 6,17 a  - dimethyl - 17b - hydroxyandrosta-4,6-dien-3-one; and 6-methylandrostane - 3b ,5 a ,6,17b  - tetrol, 5 a ,6 - dihydroxy - 6 - methylandrostane - 3,17 - dione and 6 - methylandrosta-4,6-diene-3,17-dione.
Patent GB-897666-A (GB)
Title: Apparatus for depositing moulding boxes on a track conveyor
IPC: B22D33/02
Filed: 1958-08-14
Abstract: 897,666. Foundry plant. BUDERUS'SCHE EISENWERK. Aug. 14, 1958 [Oct. 26, 1957], No. 26200/58. Class 83 (1). [Also in Group XXX] Copes and drags arriving alternately at a common take-off point are deposited on to a conveyer arranged at a distance from the takeoff point by means which transport the copes and drags over separate paths which lead to two different points situated one behind the other in the direction of movement of the said conveyer. In one embodiment, arms 7, 8 at 90 degrees to each other carry box gripping and lifting devices 12, 11 along a semi-circular path by rotation of the arms about a vertical axis through a chain drive 23, 25. In one end position the device 11 places a drag on the conveyer 5 while the device 12 lifts a cope from the takeoff point 3. Rotation of the arms to the other extreme position then moves the said cope to the conveyer 5 and deposits it on the previouslydeposited drag, while the gripping device 11 is moved to the take-off point to pick up the next arriving drag.
Patent GB-842356-A (GB)
Title: Process for simultaneously extracting oil and protein from oleaginous materials
Inventor: SUGARMAN NATHAN
IPC: C11B1/00
Filed: 1956-08-28
Abstract: A process for extracting oil and protein from vegetable oleaginous material comprises comminuting the material, grinding to a slurry in an aqueous alkaline solution of a pH such that substantially optimum solubility of protein is obtained, lowering the pH without precipitating the protein, heating to a temperature of from 25 to 80 DEG C., thereafter separating the material into concentrated oil emulsion, protein solution, and solids, treating the protein solution with acid to precipitate the protein, treating said concentrated oil emulsion to control the pH thereof according to the moisture content thereof so as to maintain the moisture-pH relationship within the region of emulsion breaking, and then mechanically breaking said oil emulsion to recover the oil.  The oleaginous material may comprise (i) peanuts, the grinding being effected in an aqueous alkaline solution of pH 7,5 to 10 followed by adjustment to pH 7,5 to 7,75; (ii) tung nuts, the grinding being effected in an aqueous alkaline solution of pH 7,5 to 12 followed by adjustment to pH 10 to 12; (iii) cotton seed, the grinding being effected in an aqueous alkaline solution of pH 9 to 12 followed by adjustment to pH 9 to 11 ; (iv) soybeans.ALSO:A process for extracting oil from vegetable oleaginous material comprises comminuting the material, grinding to a slurry in an aqueous alkaline solution of pH such that substantially optimum solubility of protein is obtained, lowering the pH without precipitating the protein, heating to a temperature of from 25 to 80 DEG C., thereafter separating the material into concentrated oil emulsion, protein solution, and solids, treating said concentrated oil emulsion to control the pH thereof according to the moisture content thereof so as to maintain the moisture-pH relationship within the region of emulsion breaking, and then mechanically breaking said oil emulsion to recover the oil.  The oleaginous material may comprise (i) peanuts, the grinding being effected in an aqueous solution of pH 7.5 to 10 followed by adjustment to pH 7.5 to 7.75; (ii) tung nuts, the grinding being effected in an aqueous solution of pH 7.5 to 12 followed by adjustment to pH 10 to 12; (iii) cotton seed, the grinding being effected in an aqueous solution of pH 9 to 12 followed by adjustment to pH 9 to 11; (iv) soy beans.
Patent GB-278714-A (GB)
Title: Drying frames for bricks and the like
IPC: F26B25/18
Filed: 1927-10-05
Abstract: 278,714. Hartmann, L. [Firm of], and Hartmann, G. Oct. 6, 1926, [Convention date]. Shelves.-Bricks &c. are supported during drying upon superimposed frames comprising shelves a and transverse battens b, the shelves and battens being secured together by bolts e, Fig. 10. The shelves may be joined by transverse strips d, Fig. 5.
Patent GB-251177-A (GB)
Title: Improvements in passenger compartments
IPC: B61D13/00
Filed: 1925-10-21
Abstract: 251,177. Lawson, A. W. Oct. 21,1925. Seats, arrangement and disposition of.-In a passenger compartment for a railway vehicle, aircraft, or marine craft, a passage-way 16 is provided between tiers of seats 21 from which all the seats are accessible. The drawing shows a standard railway vehicle which is provided with upper tiers of seats supported on floors 20 midway of the height of the vehicle, the upper seats being reached by ladders 22 which also support the floors 20 by brackets 23.
Patent GB-1429079-A (GB)
Title: Blanking die assembly
IPC: B21D45/00
Filed: 1973-06-01
Abstract: 1429079 Transferring blanks J MARCONI 1 June 1973 [21 Dec 1972] 26384/73 Heading B3W A blanking die assembly includes a die plate 13, a die holder 11 having walls for supporting the die plate and defining a space beneath it and support means for the die plate movable into the space during a blanking operation. As shown the support means comprises a shuttle plate 12, Fig. 3c, movement of the plate to the right causing the blank to fall on to the holder and the return movement of the shuttle plate pushing the blank off the holder. The die plate is secured to the holder by a spring loaded bolt (15) at each corner, Fig. 1 (not shown), sufficient clearance to allow the die to flex during punching being left between the die and the shuttle plate. In another embodiment, Figs. 8-10 (not shown), a shuttle plate is pivoted between positions in which it covers and uncovers an opening in the holder. The blanking die assembly of Fig. 3c may be mounted in a multi-station turret press, Fig. 4, an air cylinder 31 moving the shuttle plate 12 to the right and springs 32 returning it, the blank falling through a forked portion 34 into a shoot 37 where it passes the lever of a microswitch 37A of a safety circuit.
Patent GB-1276940-A (GB)
Title: Sampler for molten metals
IPC: G01N33/20
Filed: 1970-06-01
Abstract: 1276940 Moulds NIPPON KOKAN KK 1 June 1970 [31 May 1969] 26406/70 Heading B3F [Also in Divisions B8 and C7] A sampler for molten metal comprises a bent refractory pipe 1 which communicates with a sample mould 3 located by castable refractory material 6 within a sleeve 5 made, for example, of paper. A cap 2 and air outlet 4 may be provided. In use the end of the pipe is inserted into a stream of molten metal so that metal can flow into the mould. If the cap 2 is present it will be melted. The mould is of cast iron or steel. When the sampler is used for sampling rimmed steel a piece of aluminium or titanium wire is placed in the pipe.
Patent GB-827035-A (GB)
Title: Structural material
IPC: A47B96/14
Filed: 1957-08-21
Abstract: 827,035. Constructional metalwork. ATTWOOD, W. R. Aug. 21, 1957, No. 26429/57. Class 20(2) [Also in Group XXV] A sheet metal bar has a longitudinal row of "knock-outs" 121 flush with the surface. The "knock-outs", which may be of round, rectangular, diamond or keyhole shape or slots with rounded ends, are punched out of flat strips leaving the metal uncut at one or more places, the slug being pushed back flush in the die or when the strip passes through the forming mills. The bar, which may be flat strip or of angle, I or U section or tubular, are connected by bolts pushed through the "knock-outs" and strengthened by angle fittings. A brace 120B may be attached to an upright 20A by a strap 40 containing round and slotted "knock-outs'. In the case of tubes the "knock-outs" are staggered either side of the tube. "Knock-outs" of adjacent sides of a rectangular tube are opposite each other. A metal washer for the bolts consists of an annulus 50 of hardened metal provided with notches 53 and punched up teeth 52.
Patent GB-961090-A (GB)
Title: An improvement in or relating to knife sharpening machines
IPC: B24B3/54
Filed: 1962-07-10
Abstract: 961,090. Grinding. A. E. TAYLOR. May 22, 1963 [July 10, 1962], No. 26472/62. Heading B3D. A knife-sharpening machine comprises one or more pairs of grinding wheels 10, 12 mounted on respective support members 18, 20 to form a V-gap along which a knife can be drawn so as to be sharpened thereby, and screw means 26 for effecting relative movement between the support members to adjust the amount of overlap of the wheels, relative movement of the members tending to increase the overlap being effected against the action of spring means 36. The support members are mounted on pivots 22 on a base 24 which has an upstanding portion 38 slotted to receive the screw 26 extending through holes 28 in the support members. The ends of the screw have oppositely-handed threads engaged by nuts 30 which are prevented from rotating by flats on the support members. A square portion 34 is adapted to receive a tool whereby the screw may be rotated to move the supports towards or away from one another against the action of springs 36. The grinding wheels with interposed spacers are secured by nuts to sleeves having pulleys connected by belts to an electric motor so that the grinding wheels associated with one support rotate in the opposite direction to those on the other. The sleeves are rotatably mounted on shafts 14, 16 held by screws to the upper ends of the supports 18, 20. The shafts can be withdrawn from the supports on release of the screws to enable worn grinding wheels to be replaced. A cover 48 surrounds the grinding wheels and has a slot 50 for permitting a knife to be sharpened to be brought into engagement with the grinding wheels. One pair of grinding wheels may be coarse and the other fine, so that the knife is first ground coarsely and then finely. In another embodiment, the support members are slidable on the base.
Patent GB-759272-A (GB)
Title: Improvements in electrical rectifiers of the contact type
Inventor: READ JOHN CARLEY
IPC: H02M1/26
Filed: 1953-09-25
Abstract: 759,272. Rectifying. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 21, 1954 [Sept. 25, 1953], No. 26493/53. Class 38 (2). In a polyphase rectifiying circuit comprising periodically-operated contacts D<SP>1_</SP>D<SP>6</SP> with switching chokes R<SP>1_</SP>R<SP>6</SP> in series and capacitors K<SP>1_</SP>K<SP>3</SP> in the phase circuits, such as forms the subject-matter of Specification 739,516, to provide a commutating voltage proportional to the load current, a switching choke in series with each contact is arranged to be unsaturated when the contact closes to create a contact closing step. By adjusting the amount ofpremagnetization, e.g. by means similar to those described in Specification 713,968, magnetic phase angle voltage control is obtained. The closing step choke also gives a reduction of output voltage which increases with the load. In Fig. 4 (a) which shows conditions during commutation under no-load between phases having voltages ES<SP>1</SP>, ES<SP>2</SP>, the incoming phase contacts close at a an interval - # before the instant of voltage equality. During interval a to b the opening choke core is taken round loop g, h, j, k, g, Fig. 4 (b). From b to c the switching choke core is taken to saturation while absorbing # volt seconds. At full load, Fig. 4 (e), the voltage across the condensers reduces the outgoing volts from value ES<SP>1</SP> and raises the incoming volts ES<SP>2</SP> by equal values EK<SP>1</SP>, EK<SP>2</SP> so that upon contact closure at a the switch choke core immediately begins its progress to satura-. tion absorbing as before # volt seconds. Current transfer between phases takes place up to c while the output volts remain at ¢(ES<SP>1</SP>+ES<SP>2</SP>). It is shown that the full load output volts are reduced by area T compared with full load voltage with no closing step choke. To maintain constant commutation time the preclosing angle # may be adjusted by altering the contact closing and opening instants, e.g. by turning the stator of field position of the motor driving the contacts.
Patent GB-934460-A (GB)
Title: A capacitance operated indicating system
IPC: G08B13/26
Filed: 1961-07-21
Abstract: 934,460. Capacitive proximity detectors. WALTER KIDDE & CO. Inc. July 21, 1961 [Sept. 14, 1960], No. 26541/61. Class 37. [Also in Group XL (c)] A capacity operated alarm device includes a normally balanced bridge, the output of which is fed, successively, to a phase sensitive detector responsive only to the reactive component of the output, and to an alarm responsive to the detector output when its rate of change exceeds a predetermined value. The alarm is thereby substantially unaffected by resistive bridge unbalance, produced, for example, by changes in atmospheric humidity. The capacity to earth of the conductive body 19, which may be a fence, wire, metal filing cabinet, or shelf, constitutes one arm of a bridge 11, the other arms of which contain the capacity circuit 44 and the two portions of potentiometer 45. The bridge is fed by transistor oscillator 10, and the bridge output, amplified by transistor 60 is fed to the detector 17, which generates an output only in the presence of a reactive component in the amplifier output, for application, via amplifier 81, to the rate sensitive alarm initiator 18. NPN and PNP transistors 100 and 95 are biased such that the current through winding 92, connected between their respective collectors, holds alarm relay 91 in the operated condition. A sufficiently rapid change of potential at point B of the detector is applied, via amplifier 81 and capacitors 107 or 109 and 110, to cause a decrease in collector current of one or the other of transistors 95 and 100, according to the sign of the signal, whereby relay 91 is de-energized and the alarm operated. If the antenna loop 12-14 is severed or shorted to earth, transistor 81 is either saturated or rendered non-conducting, whereupon, due to the resulting high positive or negative potential assumed by collector 85, one of the two Zener diodes 117 or 119 conducts, causing the corresponding transistor 95 or 100 to release relay 91 and operate the alarm. Similarly, the alarm will be operated if the power source 20 is disconnected. H.F. pick-up in the antenna is filtered off by circuit 55, 56, 57, 58, and by capacitor 70; temperature compensation for the transistors is provided by thermistor 121.
Patent GB-1209419-A (GB)
Title: Side plates for turbine blades
IPC: F01D5/30
Filed: 1969-05-27
Abstract: 1,209,419. Turbine rotor blade fixing. WESTINGHOUSE ELECTRIC CORP. May 27, 1969 [June 24, 1968], No.26738/69. Heading F1T. The roots 5 of gas turbine blades 6 are locked in position in axial slots 4 in the rotor periphery 3 by upstream and downstream side plates 10, 11 engaging in respective circumferential slots 16, 17 in blade platforms 7 and in corresponding slots 14, 15 in the rotor periphery 3. Adjacent plates 10 or 11 have inter-fitting lips 20, 21 to prevent cooling air leakage and also have tabs 22 engaging deeper portions 18 of slots 16, 17 to prevent circumferential movement of the plates 10, 11 from their assembled position. Prior to assembly of plates 10, 11 and their associated blades 6 on the rotor, a first blade 6 is mounted on the rotor and locked in position by special locking plates 30. Fig. 3, at the upstream and downstream sides of its root 5. The plates 30 do not have tabs 22 and are chamfered at 31 to permit assembly of the plates in slots 14 to 17 in the manner shown dotted, rather than by the circumferential sliding necessary for plates 10, 11. The plates 30 are locked in position by screws 34, 35 having tab washers 40 and then the remaining blades 6 and plates 10, 11 are assembled one by one on the rotor. The last locking plates inserted comprise a further set of special plates 30 adjacent the plates 30 first inserted. The plates 10 have holes 54 through which cooling air enters an annular chamber 39A to flow through gaps 50 to 53 between the blade roots 5 and the mounting slots 4, thence into an annular chamber 39 before exhausting through holes 55 in plates 11. Similar holes 56 are also provided in plates 30. (For Figure see next page)