baber/WOPTO huggingface dataset:
Patent GB-274972-A (GB)
Title: Improved sheets and slabs for building purposes
IPC: E04C2/284
Filed: 1926-04-30
Abstract: 274,972. Batchelor, A. April 30, 1926. Metal skeleton slabs; compound slabs.-A compound sheet or slab for building purposes comprises a metal reinforcement coated with' bituminous or pitch adhesive composition, a covering upper layer of fibre and cement or like composition containing a high percentage of cement, and a flexible thinner lower layer of fibro-cemcnt, having a lower percentage of cement, placed underneath the reinforcement. Fig. 1 shows a corrugated metal sheet formed with staggered rows of stabbed holes on the crests 3 and valleys 4 of the corrugations, and with slightly burred holes formed by a cutter punch on the intermediate slopes. The metal sheet is immresed in molten asphalt, pitch, or the like and a dried corrugated sheet of asbestos cement 6, preferably about 3/16ths of an inch in thickness and consisting of 75 per cent cement and 25 per cent blended hair. pulp or asbestos fibres, is applied to its upper surface and pressed thereon. It is stated that the pressure is arranged to produce a thicker layer on the crests and valleys than on the intermediate slopes. The sheet thus formed is treated with bituminous or pitch composition or with silicate of soda, after which an under sheet 10 is pressed on, comprising a thin felted sheet of cement and fibre about one thirty-second of an inch in thickness and' comprising equal quantities of cement and fibres. The outer edges of the metal reinforcement may be scalloped or serrated to prevent the breaking away of the fabric coverings thereat. In a modified construction the reinforcement is formed of expanded metal rolled into corrugations so that the upstanding metal on the intermediate slopes is flattened relatively to that on the crests and in the valleys. The corrugations are formed so as to give an exact overlapping fit between rows of sheets without the use of filling-material. The slabs may be plain instead of corrugated. The reinforcement may consist of wire cloth.
Patent GB-478942-A (GB)
Title: Improvements in and relating to colour forming developers and processes of colour development
IPC: G03C7/36
Filed: 1936-04-23
Abstract: 6-(o -Chloracetyl)-tetrahydronaphthalene is prepared by the action of chloracetyl chloride on tetrahydronaphthalene in carbon disulphide in the presence of aluminium chloride. a -Naphthoylacetonitrile is prepared by adding a warm aqueous solution of 3 molecular parts of sodium or potassium cyanide to a warm alcoholic solution of a -naphthacyl chloride, heating the mixture on a steam bath and pouring it into dilute acid. 4-Methoxy-a -naphthoylacetonitrile, 2-methyl-a -naphthoylacetonitrile, 4-methyl-a -naphthoylacetonitrile, b -naphthoylacetonitrile, 6-methyl-2-naphthoylacetonitrile, tetrahydro-b  - naphthoylacetonitrile, 3 - o  - cyanacetyl - dibenzfuran, p(p<1>-chlorophenyl)benzoylacetonitrile, p-phenylbenzoylacetonitrile, p-phenoxybenzoylacetonitrile, 1-o -cyanacetyl-coumarone and 3-o -cyanacetylacenaphthene may be prepared in a similar manner from 4-methoxy-1-chloracetylnaphthalene, 2-methyl-1-chloracetylnaphthalene, 4 - methyl - 1 - chloracetyl p  - naphthalene, b -naphthacyl bromide, 2-methyl-6-naphthacyl bromide, 6-(o -chloracetyl)-tetrahydronaphthalene, 3 - o  - chloracetyl - dibenzfuran, p(p<1>-chlorophenyl)phenacyl bromide, p-phenylphenacyl chloride, p-phenoxyphenacyl chloride, 1-o -bromacetyl-coumarone and 3-o -chloracetylacenaphthene respectively.  1-o -Bromacetyl-4-chlorocoumarone is prepared by bromination of 1-acetyl-4-chlorocoumarone in methyl alcohol or chloroform.  1-o -Cyanacetyl-4-chlorocoumarone is prepared by adding 1-o -bromacetyl-4-chlorocoumarone to a warm alcoholic suspension of sodium cyanide, filtering off the sodium salt of the cyano-ketone, dissolving in water and acidifying.
Patent GB-905284-A (GB)
Title: Procedure for recovering rubbery polymers and copolymers from solution
IPC: C08C2/06
Filed: 1961-03-30
Abstract: Rubbery polymers are recovered from solutions thereof by a process which comprises steam stripping the solution in the presence of a dispersant selected from (a) zinc oxide, (b) an alkali metal lignin sulphonate and (c) either a water-soluble polymeric substance containing a carbon backbone chain having a plurality of -COOH groups attached thereto, or a water-soluble alkali metal salt thereof, and ions of a metal selected from calcium, strontium, barium, aluminium, iron, cobalt, and nickel. The process is preferably operated as a continuous process employing a number of separate stripping zones. The Specification includes a flow diagram of such a process.  The solvents for the polymers are generally hydrocarbons.  Polymers mentioned are cis- and transpolybutadiene and polyisoprene, poly-2,3-dimethyl-butadiene, poly 2-methoxy-butadiene, poly 1,3-hexadiene, poly 1,3-octadiene, and copolymers of the monomers of the above homopolymers with styrene, acrylonitrile, methyl acrylate, methyl methacrylate, vinyl chloride, methyl vinyl ether, ethylene, propylene, 1-butene, 1-propene, or 1-octene.  The polymers are preferably made using a Ziegler-type catalyst such as those described in Specification 851,893, or an organolithium catalyst.  The water-soluble polymeric (C) ingredient may be a homopolymer or copolymer of acrylic or methacrylic acid or an alkali-metal salt thereof, or a copolymer of maleic acid or anhydride such as the sodium salt of a copolymer of diisobutylene and maleic anhydride. The metal ions are generally obtained from water-soluble salts of the metals, e.g. calcium chloride, calcium hydroxide, barium bromide, strontium chloride, aluminium iodide, ferric or ferrous chloride, calcium nitrate, calcium formate, barium hydroxide or nitrate, strontium phosphate, aluminium hydroxide, ferric acetate, cobaltic iodide, cobaltous chloride or nitrate, and nickel chloride or acetate.  The dispersant may be added to the polymer solution or directly to the stripping zone. The recovered polymers may be compounded in the presence of carbon black, zinc oxide, sulphur, disproportionated rosin, flexamine, and an aromatic oil.
Patent GB-913897-A (GB)
Title: Improvements in or relating to gas-cooled nuclear reactors
Inventor: PICTON JAMES SIMON
IPC: G21C19/04
Filed: 1960-04-01
Abstract: 913,897. Reactors. BABCOCK & WILCOX Ltd. March 30, 1961 [April 1, 1960], No. 11695/60. Class 39 (4). Vertical coolant channels of a reactor include restrictors which are normally held open by the weight of fuel elements in the channels but which are moved, by the action of the coolant pressure drop across them, towards their closed positions when fuel elements are removed from the channels. Fig. 1 shows a fuel support pillar 34 supported by a spider 62 in a sleeve 54, spider 62 is supported by sliding pieces 72 and holds balls 80 to lock the sleeve in place. Fuel elements rest on a boss 52 on the end of a rod 32 at whose lower end is restrictor member 30 which, with throat 56, controls coolant flow up the channel. Removal of fuel elements allows the coolant flow to lift member 30, thus reducing the flow until an equilibrium position is reached. The support system is removed as shown in Fig. 3. Balls 104 carried in sleeves 94, 98 engage the top of the pillar. The pillar is lifted by cable 112, freeing balls 80 and hence sleeve 54. Specification 901,868 is referred to.
Patent GB-849260-A (GB)
Title: Football results forecast board game
IPC: A63F3/00
Filed: 1959-04-07
Abstract: 849,260. Board games. PLATT, H. H. April 7, 1959, No. 11698/59. Class 132(2). A board game simulating football match results comprises pieces moved in accordance with the throw of a die around a peripheral track some segments of which are numbered and marked with the name of one of eight football teams, some are marked to denote coloured counters, some are marked to denote passage of time, and some are marked to denote advantages. Within the track are four identical straight tracks (only one is shown in detail) each having two sub-tracks up which two of eight team markers are moved in accordance with a playing piece landing on the segments of the peripheral track marked with the names of the appropriate teams. The sub-tracks are associated with numbering denoting goals scored. Time counters are provided and one is put in each time square at the top of the straight track when a piece lands on a segment of the main track marked to denote passage of time. When all four time squares are filled that match is finished and a counter is placed in the circle at the top of the straight track, the counter being coloured to denote a home win, an away win, or a draw as determined by the goal numbers opposite the team markers on the sub-tracks. In the course of play, players acquire coloured counters exchanged for result cards of which there are 15 each marked with four results (home, away or draw), the set making up all the possible combinations of results. When all four matches (one for each straight track) are completed, the player holding the result card corresponding to the four actual results wins the game.
Patent GB-1463035-A (GB)
Title: Push-button measuring device
IPC: G01D7/00
Filed: 1975-03-20
Abstract: 1463035 Indicating measurement; liquid level indication BERTIN & CIE 20 March 1975 [21 March 1974] 11742/75 Headings G1H and G1J [Also in Division F2] A measuring device comprises a transparent push button which is depressed to cause sensing of the parameter to be measured, the reading being visible through the button and being retained when the button is released. As described, the device is shown applied to measuring the depth of liquid in a tank 25, the button comprising, in one arrangement, a transparent panel 1 having totally internally reflective stepped surfaces 16 and portions 2, 3 locating a diaphragm 12. The button has a piston-cylinder relationship with a fixed body 4 and carries a pipe 24 which clips into the tank. When the button is depressed, a non-return valve 10 between a chamber 19 (the cylinder), and atmosphere is closed and a similar valve 11 opens so that air is forced into a chamber 20 beneath the diaphragm 12 and into the tube 24 via passages 22 to expel liquid. When the button is released, it is raised by a spring 6, valve 10 opens and valve 11 closes so that the pressure in the chamber 20 is related to the depth of liquid in the tank. Proportional movement of the diaphragm 12 determines the degree of telescoping of contrasted coloured sleeves 13, 14, and their relative positions show as annulii reflected from the corresponding surfaces 16 through the panel 1. In an alternative device for the same purpose, the construction is similar except that the diaphragm pivots a pointer (27) within the button Figs. 2, 3 (not shown) by a push-rod (30) connection, the pointer sweeping a scale (41). In either embodiment, the panel 1 may be domed to give magnification.
Patent GB-1491026-A (GB)
Title: Synchronous dynamoelectric machine
IPC: H02K21/24
Filed: 1975-03-20
Abstract: 1491026 Dynamo-electric machines CANADIAN GENERAL ELECTRIC CO Ltd 20 March 1975 [4 April 1974] 11747/75 Heading H2A A planar air gap dynamo-electric machine comprises an annular array of axially magnetized permanent magnets 52 on one member and an A.C. winding mounted on another member, the two members being relatively rotatable, the winding comprising an annular array of overlapping coils all having a span of one pole pitch, the coils being embedded in a bonding medium to form a discoidal winding structure 31. The machine may be a motor or generator. In the machines disclosed the permanent magnets are on the rotor. The stator of the machine shown includes a core 27 of helically wound strip metal. In a modification, Fig. 2 (not shown), the stator winding is coreless and is disposed between two axially spaced apart rotors which may be mounted on the same shaft or on different shafts.
Patent GB-1245916-A (GB)
Title: New thiazoline compounds and methods for their production
Inventor: ISLIP PETER JOHN
IPC: C07D277/58
Filed: 1970-03-11
Abstract: 1,245,916. Thiazoline derivatives. PARKE, DAVIS & CO. 11 March, 1970, No. 11783/70. Heading C2C. Novel compounds of Formula (I) (in which R 1  is C 1-4  alkyl, C 1-4  alkoxy, cyclopropyl, phenyl or 2-thienyl and R 2  is C 1-4  alkyl or cyclopropyl), are prepared by (a) reacting a compound of Formula (II) with the compound of Formula (III) (in which X is chlorine, bromine or iodine), in the presence of a base, or (b) reacting a compound of Formula (IV) with a reactive derivative, e.g. the anhydride or a halide, of an acid of formula R 2 COOH, in the presence of an acid catalyst. Starting materials. Compounds of Formula (II) are prepared by reacting 2-amino-5-nitrothiazole with a compound of formula Cl.COR 1 . Compounds of Formula (III) are prepared by reacting a compound of formula X.CH 2 COCl with a compound of formula H 2 N.COR 2 . Compounds of Formula (IV) are prepared by reacting a compound of Formula (II) with a compound of formula X.CH 2 .CONH 2 .
Patent GB-584111-A (GB)
Title: Improvements in or relating to work rests for thread generating machines
IPC: B21H3/04
Filed: 1945-05-11
Abstract: 584,111. Rolling screw threads. STEINLE, L. C., and HANWELL, C. H. May 11, 1945, No. 11888. [Class 83 (iv)] Axial rolling.-In a thread rolling machine with fixed roll a and movable roll b a work rest c is lowered during rolling to compensate for the increased diameter. The rest is carried in a slideway d and is positioned by a racked wedge f moved by a pinion p and rack q operated by the roller carriage through an adjustable abutment v. In a modification, linkage is substituted for the rack mechanism. Specification 516,233 is referred to.
Patent GB-916790-A (GB)
Title: Steroids and the synthesis thereof
Inventor: FRIED JOSEF
IPC: C12P33/00
Filed: 1959-04-08
Abstract: The invention comprises steroid compounds of the general formula <FORM:0916790/IV (b)/1> wherein the 1,2-position is saturated or double bonded, R represents hydrogen and R1 represents a b -hydroxy group or together R and R1 represent an oxo group, X represents a halogen, Y represents hydrogen, and Z represents hydrogen or a hydroxy group, and the preparation thereof and of steroid compounds wherein Y represents a hydroxy group by treating steroid compounds of the general formula <FORM:0916790/IV (b)/2> wherein the 1,2-position is saturated or double bonded, R, R1, X and Z have the above significance, and Y1 represents hydrogen or a hydroxy or acyloxy group, with the oxygenation action produced by growing the microorganism Streptomyces roseochromogenus, e.g. by including the steroid reactant in an aerobic culture of the said microorganism, and the preparation of steroid compounds of the first general formula above wherein the 1,2-position is saturated or double bonded, R, p R1 and X have the above significance, Y represents hydrogen, and Z represents a hydroxy group, by reacting a steroid compound of the general formula <FORM:0916790/IV (b)/3> with osmium tetroxide, e.g. in the presence of an organic base such as pyridine, and reductively hydrolysing the resulting osmate ester, e.g. by treating the osmate ester with sodium sulphite or hydrogen sulphide. 16,17-Dehydro-steroids of the third general formula above, wherein the 1,2-position is saturated or double bonded, Y represents hydrogen, and R, R1 and X have the above significance, are prepared by treating steroid compounds of the first general formula above, wherein the 1,2-position is saturated or double bonded, Z represents hydrogen, and R, R1, X and Y have the above significance, with aluminium tertiary butylate at an elevated temperature. Specification 754,672 is referred to.
Patent GB-939701-A (GB)
Title: Improvements in or relating to scraper chain conveyors
IPC: B65G19/08
Filed: 1961-04-04
Abstract: 939,701. Endless scraper conveyers. E. BRAUN, G. BRAUN, and H. HALBACH, [trading as HALBACH & BRAUN]. April 4, 1961 [April 6, 1960], No. 11910/61. Class 78 (1). Flange parts 1c of the troughing side walls of a single chain scraper conveyer are of rightangled triangular section to provide increased strength. Each of the scrapers has a nose 2b which engages in a link of the chain, the scraper being held by a stirrup bolt 8. The ends of the scrapers are shaped so that they deflect conveyed material away from recesses 3 in the troughing walls.
Patent GB-728830-A (GB)
Title: Improvements in or relating to friction clutch centres
Inventor: CHARLESWORTH THOMAS RICHARD
IPC: F16D13/68
Filed: 1952-05-12
Abstract: 728,830. Resilient clutch plates. LAYCOCK ENGINEERING, Ltd. April, 21, 1953 [May. 12, 1952], No. 11931/52. Class 80 (2). A friction clutch disc 4 is connected to a flange 8 of a splined hub 7 through rubber blocks 15 or compression springs arranged in recesses in the flange 8, disc 4 and a plate 5 turning with disc 4 through bolts 6 passing through clearance holes in flange 8, while friction damping is provided by friction rings 17 interposed, adjacent the hub 7, between the flange 8 and the plates 4, 5, springs 18 arranged on the bolts 6 serving to maintain the rings 17 in contact. Specification 715,512 is referred to.
Patent GB-431224-A (GB)
Title: Improvements in or relating to electric motor control apparatus
IPC: H02P1/08
Filed: 1934-04-20
Abstract: 431,224. Actuating controllers. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Riley, L. G. ; 905, Milton Street, Pittsburg, U.S.A.) April 20, 1934, No. 11950. Convention date, April 22, 1933. [Class 38 (iii)] With auxiliary switches; disposition of resistances.-A controller comprises resistance elements, displacable contact members therefor each mounted on a stationary part of the apparatus and arranged about a common centre, and a common contact displacing member rotatable about the common centre and carrying a resiliently mounted roller adapted to press against the contact members to actuate them in sequence to a circuit operating position. Contacts 10 mounted on leaf springs 13 are arranged around the inside of a circular bus-bar 15, and are pressed into contact with the bar to shunt sections of resistance 17 in sequence by means of a roller 26 carried in a ball-bearing 34 on a cross-member 29. The member 29 is pivoted at one end in a fork on one arm 31 of a bifurcated member 27, the other end of the member 29 sliding in a fork on the other arm of the member 27 and being acted on by a spring 33 which forces the roller 26 against the top of rigid plates 40 attached to the back of the leaf springs 13. The member 27 is mounted on a shaft 35 driven through worm gearing 42 by an electric or pneumatic motor 28, the speed of which may be controlled. The contact bar 15, and the leaf springs 13 are mounted on opposite sides of an insulating ring 11 carried on a panel 12, and the resistance elements 17 are supported by L-shaped arms 18 secured to an insulating ring 19 mounted on a metal plate 21 by means of insulated extension bolts 22. Connection between the resistance elements 17 and the contacts 10 is made by means of clamps 30 and studs 25. The contacts 10 are formed with rounded surfaces and rub vertically and horizontally on the contact bar 15 when contact is made. Spring-biassed plungers 46, acted on by cams 47 may be arranged to close selected contacts 10 independently of the roller 26, and limit switches for the motor 28 may be similarly operated. A hinged cover 54 with felt washers 55 is provided.
Patent GB-255182-A (GB)
Title: Conveyer for use in sorting postal packets and newspapers
IPC: B07C3/08
Filed: 1925-05-08
Abstract: 255,182. Grant, J. T. May 8, 1925. Letters and the like, systems of transmitting and delivering.-Postal packets and newspapers to be sorted are delivered into a series of bins a communicating with a long trough and are led bv a series of shoots b and conveyer belts c to a sloping receiving ta,ble h and to a final sorting table j where the sorting is performed. A hinged. flap k is secured to the lower end of the receiving table h to control the supply of packets to the sorting table. The packets are prevented from slipping off the belts by a wire cage e and rubber stop # to each belt.
Patent GB-233727-A (GB)
Title: Improvements in and relating to track substructures for railroads, particularly street railways
IPC: E01B21/02
Filed: 1925-05-08
Abstract: 233,727. Day, W. P. May 10, 1924, [Convention date]. Paving tramways.-Street rails A are secured to plates 10 fixed to sleepers 11 which are embedded in concrete 16, except under the rails, where a softer material is used. The concrete is filled level with the plates 10 and before it is set a space 17 is cleared around the rail base. This space is filled with a dry mix 18 preferably containing asphalt, which is thoroughly tamped. A seal 19 of concrete may be used to hold the rails A and filling 18 in place.
Patent GB-558826-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03G11/00
Filed: 1942-08-28
Abstract: 558,826. Wireless receiving circuits. HINGS, D. L. Aug. 28, 1942, No. 12144. [Class 40 (v)] For preventing interference, a receiver comprises input stages 9, a high frequency amplifier 16 having at least a control grid 19 and an injector grid 18, and output stages 8. The output from 9 feeds jointly to control grid 19 and to the control grid of an amplifier 54 the output from which is fed by a transformer 22 tuned to the carrier frequency to a diode 29, 31 to develop across resistance 38 the audio frequency components of both signal and interference. A high-pass filter 5 removes the signal components and passes the interference to the grid of a triode amplifier from the anode 25 of which the interference is fed to the injector grid 18 of valve 16 which is stated to suppress the output during interference. A second diode 26, 28 assists the action during very strong interference. A coupling condenser 41 feeds both signal and interference through the triode to the injector grid 18. This is stated to increase the sensitivity and gain of the receiver.
Patent GB-721562-A (GB)
Title: Space controlling mechanism for multi-pitch escapement typewriter
IPC: B41J19/32
Filed: 1952-05-13
Abstract: 721,562. Typewriters. SWEENEY, J. L. May 13, 1952, No. 12145/52. Class 100 (4). In a typewriter of the general construction disclosed in, and having a letter-spacing escapement mechanism of the general construction disclosed in Specification 593,193, the adjustable stop 48, Figs. 1 and 3, for the movable clutch 46 is adjusted by control mechanism actuated by the-key levers 16, so that the amount of escapement depends on the width of the type printed. Each lever 16 has two cam rollers 50, one on each side. A cam-shaft 52 is provided with a plurality of pairs of cam members 55, 72, one pair aligned with each key lever, and each having a cam slot shaped according to the width of type corresponding to its aligned key lever. The cams 55 are for lower case letters and the cams 72 for capitals, and the shaft 52 is movable axially by the case-shift mechanism to bring the requisite series of cams into alignment with the rollers 50. Rota. tion of the shaft 52, consequent to depression of a key lever by means of a nose 58 on one of the cams 55 and a link 60, arm 61, rod 62 and arm 66, sets the stop 48 in the correct position. The stop 49 is adjustable by a hand-operating knob through a rod 93, so as to add or subtract a desired increment to or from all the escapement distances for justification purposes. The clutches 45, 46 are clamped and released through the bail 23 as described in Specification 593,193. Reference has been directed by the Comptroller to Specifications 587,724 and 593,193.