baber/WOPTO huggingface dataset:
Patent GB-1413157-A (GB)
Title: Crosslinkable thermoplastic compositions and their preparation
IPC: C08F299/00
Filed: 1972-12-06
Abstract: 1413157 Unsaturated polyester moulding compositions DART INDUSTRIES Inc 6 Dec 1972 [9 Dec 1971] 56254/72 Heading C3P A composition comprises (a) an unsaturated, thermosettable polyester having a melting point above 65‹ C., (b) a polymerizable crosslinking agent having the structure wherein R<SP>1</SP> independently is H or CH 3  and R<SP>2</SP> independently is H, C 1-4  alkyl, phenyl, phenyl substituted with halogen, OH, NO or C 1-4  alkyl; C 4-6  cycloalkyl or a group of formula wherein each R<SP>11</SP> independently is H or CH 3  and R<SP>12</SP> is a straight or branched chain C 1-8  alkylene group; (an example of such a compound is methylene bis acrylamide; each R<SP>1</SP> and R<SP>2</SP> = H) or wherein n = 2 to 10, R<SP>1</SP> is H or CH 3  and Z is a polyvalent aliphatic, cycloaliphatic or aromatic group, the aliphatic group being of the formula wherein each R<SP>3</SP> and R<SP>4</SP> independently is H or C 1-4  alkyl; the cycloaliphatic group preferably is cyclohexylene or bis-methylene cyclohexane and the aromatic group preferably is phenylene or phenylene substituted with up to 4 CH 3  groups, on bis methylene benzene or bis-methylene benzene substituted with up to 4 CH 3  groups (an example of such a compound is ethylene glycol bis-acrylate; Z represents -CH 2 CH 2 - each R represents a hydrogen atom and n is 2); or a condensation product of hydroxymethyl diacetone acrylamide having a molecular weight of 400-3000. (c) a freeradical initiator having a 10 hour ¢ life period above 93‹ C. and (d) a filler material and/or fibrous reinforcing agent. The composition is a free-flowing solid at room temperature. The typical α,#-ethylenic unsaturated dicarboxylic acid type materials which form part of (a) may be modified by inclusion of monobasic acids and/or monohydric alcohols as well as saturated dicarboxylic and aromatic acids. Typical peroxy compounds are given as examples of component (c) and glass, asbestos and graphite fibres for examples of (d).
Patent GB-1372380-A (GB)
Title: Data processing system
IPC: H03M7/30
Filed: 1971-12-04
Abstract: 1372380 Data processing INTERNATIONAL BUSINESS MACHINES CORP 4 Dec 1971 56375/71 Headings G4A and G4C A data processing system is programmed to compress an associative table comprising a plurality of n bit binary words. In an associative memory a large number of tables are stored each having rows which are substantially the same as adjacent rows and it is desired to save storage space by compressing the tables and eliminating redundant data. The associative memory may comprise 4 state cells as described in Specifications 1,186,703 and 1,218,406, two of the states being 1 and 0, the third being an X (don't care) state and the last state Y being the inverse of X, or a software emulator of such a memory. Table compression.-To compress pairs of words in a table, those whose digits differ in only one position have that digit replaced by an X. For example for a table of 3 digit words: 100# 101#10X# 110#11X#1XX 111# It is possible to regard the table of eight possible three digit words as defining the vertices of a cube in three dimensions. The entry 00X can be taken to represent the line joining 000 and 001, X0X is the plane 000, 001, 100, 101 and XXX is the whole cube, so that an entry with no Xs is a point, with one X is a line, with two Xs is a plane, and with NXs is an N dimensional hyperplane. Using set theory it can be shown that the redundant data can be removed by examining each word for points which occur in adjacent or surrounding planes, replacing such points in adjacent planes with X state bits and eliminating from the table words defining planes falling wholly within other larger planes, and including all words defining planes which have points, occurring only in those planes in a final table. The program.-A table is loaded (e.g. in PL/1) and "prime implicants" found (Fig. 2 not shown). An absorb routine (Fig. 4, not shown), then deletes all small planes found to be included in larger planes. Then an include routine (Fig. 3, not shown) examines every point to decide whether or not it is included in only one plane; if it is, it is included in the final table. Linear techniques may be used if the table contains points in more than one plane. Masking and printout are also mentioned.
Patent GB-1387880-A (GB)
Title: Diaphragm pumps
IPC: A01C23/04
Filed: 1972-12-07
Abstract: 1387880 Reciprocating pumps T H BAGGALEY 21 Nov 1973 [7 Dec 1972] 56433/72 Heading F1A A diaphragm pump for supplying liquid additive to liquid in a pipe-line, e.g. fertilizer to irrigation water, comprises a first diaphragm 2 defining a pumping chamber 16 with inlet and outlet valves 17 and 18 for the additive, and an actuating chamber 19, and a second diaphragm 5 connected to diaphragm 2 by rod 10 and defining an actuating chamber 20, both actuating chambers being alternately connected by solenoid valves 24, 25 to the pipe-line and to obain, to effect pumping of the additive at a pressure greater than that of the pipeline. As shown, actuating chambers 19, 20 are inter-connected by pipe 21. The diaphragm return strokes may be effected by springs 14, 15, by the resilience of the diaphragms or by applying the pipe-line pressure to chamber 22, the chamber being vented to atmosphere during the delivery stroke. Solenoid valves 24, 25 are controlled by a flowmeter in the pipe-line driving a switch. The pump delivery may be adjusted by limiting the return stroke by an adjustable stop 50, or by varying the switching frequency of valves 24, 25. Air is vented from pumping chamber 16 by removing plug 49. The pump installation, Fig.2 (not shown) includes isolating, stop and by-pass valves and filters. The diaphragms may be of nylon-reinforced neoprene, and the other pump components of stainless steel and nickel plated brass.
Patent GB-1191768-A (GB)
Title: 4-Oxo-19-Nor-A-Homo-Steroid Dienes and a Process for their Manufacture
IPC: A63F7/06
Filed: 1968-12-02
Abstract: 1,191,768. A-Homo-steroids. CIBA Ltd. 2 Dec., 1968 [30 Nov., 1967; 20 Dec., 1967; 25 June, 1968], No. 57073/68. Headings C2C and C2U. Novel 4-oxo-19-nor-A-homo-steroid-1,5(10)- dienes are prepared by reacting 3-oxo 10- hydroxymethyl-steroid-1,4-dienes in which the 19-hydroxy group is reactively esterified with an alkali metal in an aprotic solvent and in the presence of a polynuclear aromatic hydrocarbon and then isomerizing the 4-oxo-19-nor-A-homosteroid-2,5(10)-diene first formed. In the products, a ketalized oxo group may be liberated, an esterified or etherified OH group hydrolysed, a 17-oxo group reduced with or without introduction of a 17-aliphatic hydrocarbon substituent with, if required, protection of a 3-keto group, and/or an OH group esterified or etherified. Particularly, a 4-keto group may be enolacylated to give a 4-acyloxy-19-nor-A-homosteroid-1,3,5(10)-triene. The products, on bromination in presence of a tertiary amine, yield the known 4-oxo-19-nor-A-homo-steroid-1(10), 2,4a-trienes. 3 - Oxo - 17 - ethylenedioxy - 19 - mesyloxy - #<SP>1</SP>'<SP>4</SP>-androstadiene is prepared by ketalization of the 17-one, itself prepared by dehydrogenation of the #<SP>4</SP>-compound. 3-Oxo-17α-methyl-17#- hydroxy - 19 - chlor - #<SP>1,4</SP> - androstadiene is prepared by dehydrogenation of the #<SP>4</SP>-compound, itself prepared by hydrolysis of 3-ethoxy-17α- methyl - 17# - hydroxy - 19 - chlor - #<SP>3,5</SP>-androstadiene, prepared in turn from the 17-one. The corresponding 17α-ethynyl compounds are prepared similarly. 3-Oxo-17α-hydroxy-19-mesyloxy - 20 - ethylenedioxy - #<SP>1,4</SP> - pregnadiene is prepared by ketalization of the 20-one, prepared in turn by dehydrogenating 3,20-dioxo-17α-acetoxy-19-mesyloxy-#<SP>4</SP>-pregnene (from the 19-ol) and hydrolysing the #<SP>1,4</SP>-17-acetate. 3-Oxo-19- mesyloxy-#<SP>1,4</SP>-cholestadiene is prepared by dehydrogenation of the #<SP>4</SP>-compound, prepared in turn by hydrolysing 3#-acetoxy-19-mesyloxy-#<SP>5</SP>- cholestene (from the 19-ol) to the 3#-ol, oxidizing to the 3-one and isomerizing this. 3 - Oxo - 17α - hydroxy - 20 - ethylenedioxy - 5,19 - cyclo - #<SP>1,6</SP> - pregnadiene and 4 - oxo - 17α - hydroxy - 20 - ethylenedioxy - A - homo - #<SP>1</SP>'<SP>5</SP> - 19 - nor-pregnadiene are by-products in the preparation of the A-homo-#<SP>1</SP>'<SP>5(10)</SP>-19-nor-pregnadiene by the process of the invention. 3-Oxo-17- ethylenedioxy - 5,19 - cyclo - #<SP>1</SP> - androstene is a similarly-produced by-product. The A-homo-steroids of the invention, which are stated to possess valuable pharmacological properties, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1215080-A (GB)
Title: Installation for triggering a number of series-connected controlled rectifiers
IPC: H03K17/72
Filed: 1968-12-03
Abstract: 1,215,080. Electric converter systems. COMPAGNIE GENERALE d'ELECTRICITE. 3 Dec., 1968 [4 Dec., 1967], No. 57422/68. Heading H2F. A plurality of series connected controlled rectifiers, e.g. thyristors, are triggered by triggering only one of the rectifiers from a pulse generator. As shown, Fig. 3, series thyristors T 1 , T 2  T 3  are in parallel with a voltage dividing network comprising R 1 , C 1 , R 2 , C 2  &c. When rectifier T 1  is triggered capacitor C 1  discharges a current i 1  (Fig. 4) through the primary P2 of a transformer K 2 , and the resultant secondary voltage is rectified by a full wave bridge ADEF and applied to the gate/cathode circuit of T 2 . In addition a current i 2  displaced in phase from i 1  will then flow in T 2 , P 2 , C 2 , R 2  and P 3 . This current opposes current i 1  in primary P 2  and a net trigger current i (Fig. 4) flows, which is seen to be zero for a short time. To avoid this zero dip in the trigger current, in an embodiment, Fig. 5, the rectified secondary current is supplemented by rectified current from a tertiary winding Gn + 1 of the transformer Kn + 1 associated with the next thyristor in the series. In another embodiment, Fig. 8 (not shown), the transformer secondaries supply trigger current through a bi-phase rectifier arrangement instead of using a tertiary winding to obtain supplementary current, the secondary output is also connected-through a delay line comprising inductors, capacitor, and diodes to the respective thyristor trigger circuit giving a supplementary current delayed in phase with respect to the main trigger current to which it is added. Thereby the zero dip in trigger current is avoided. In a modification of the Fig. 5, embodiment symmetrical RC networks are provided (Fig. 7, not shown). Thus should a thyristor be triggered out of sequence, this arrangement will result in triggering of the preceding thyristor in the chain as well as the succeeding thyristor.
Patent GB-1181230-A (GB)
Title: Improvements in or relating to Hand Devices for Applying Paint
Inventor: MORRIS JOSE MARY
IPC: B05C17/00
Filed: 1966-12-22
Abstract: 1,181,230. Brushes. J. M. MORRIS and R. J. GOUDGE. 10 Jan., 1968 [22 Dec., 1966], No. 57503/66. Heading A4K. [Also in Division B4] A pad, intended for use as a disposable paint brush, is releasably attachable to a handle, by means of an intermediate member, to which it is permanently secured. A nylon plate 31a carries a foamed polyester pad, having a mohair paint applying surface. The plate 31a is secured to the nylon handle 34a, by sliding its bevelled edges between corresponding grooves in the handle walls 48. Ridges coact with the wall 46 to retain the plate 37a in its assembled position. In use, guard 36a prevents an adjacent surface from receiving paint. A handle in the form of an inverted T may be connected, to the intermediate plate, by spigot and socket couplings (16, 15, Fig. 1, not shown). Alternative materials for the nylon parts are polypropylene or p.v.c. The paint applying surface may be of cotton or of a mixture of mohair and cotton and the pad may alternatively be of foamed polyether.
Patent GB-1425628-A (GB)
Title: Electroforming fine mesh and matrix therefor
IPC: H01J9/14
Filed: 1973-12-12
Abstract: 1425628 Master matrix for electro-forming mesh BUCKBEE-MEARS CO 12 Dec 1973 [27 March 1973] 57551/73 Heading C7B A mesh having up to 2500 line pairs per inch may be electro-formed on a reusable matrix comprising a flat substrate bearing a flat Ni layer on to which a cured photo-resist pattern comprising islands and recesses corresponding to the mesh is deposited, with a SiO 2  layer deposited over the whole. For electro-forming, a metal layer is sputtered on the matrix, sputtered metal is removed (e.g. with a squeegee) from the photoresist islands and elecro-forming effected in the recesses. The electro-formed mesh is removed together with the sputtered metal, fresh sputtered metal being formed prior to each electro-forming operation. The substrate may be Cu, plastics, ceramic or glass and be Ni-plated from a Watts bath, the Ni layer being ground optically flat. The SiO 2  may be sputtered to a thickness of 0.0002cm. The sputtered metal may be Au-Pd-Bi alloy in proportions 25-7-1.
Patent GB-1389353-A (GB)
Title: Apparatus for effecting the admission of a gas at low temperature to or its admission to and withdrawal from a user device
IPC: F17C13/00
Filed: 1972-12-15
Abstract: 1389353 Pipe mountings LINDE AG 15 Dec 1972 [27 Dec 1971] 57965/72 Heading F2G A coaxial pipe system for admitting and withdrawing a gas at a low temperature to and from a user device 3, e.g. a rotating cooling head, is rotatably mounted and sealed in a wall 4 of the device by annular packing 58, 59 in an annular sealing chamber 84. The chamber 84 communicates with the withdrawal passage 81 through a narrow, annular separating chamber 44 and the chamber 84 is thermally insulated from the admission and withdrawal passages 80, 81. As shown, a ball bearing 54 rotably mounts a system of coaxial pipes 18, 23, 24, 30 in a bush 39 on the wall 4. Gas at a low temperature passes into the device through the central pipe 24. A space 83 between rotating pipes 18, 30 is evacuated to insulate the chamber 84 from the admission passage 80 and these pipes are connected by a metal bellows 62 to relieve stresses. The gas is withdrawn through a side tube 81 and absorbent material 70 ensures a good vacuum in an adjacent chamber. The narrow separating chamber 44 permits only a small quantity of the withdrawn gas to reach the packings 58, 59 which may be lip-ring or slide-ring seals of a nitrile rubber base. The rotating pipes are supported within an outer case 13 by a further bearing and seal assembly (Fig. 3, not shown), and the inner pipes 23, 24 are joined together by a further metal bellows adjacent a stationary gas inlet tube.
Patent GB-1315909-A (GB)
Title: Transport vehicle having a buoyancy device
IPC: E01D15/22
Filed: 1971-12-16
Abstract: 1315909 Amphibious vehicles DR ING h c F PORSCHE KG 16 Dec 1971 [18 Dec 1970] 58389/71 Headings B7A and B7B A buoyancy device for a transport vehicle includes a floating buoyancy element 8 carried in a load carrying frame 6 which is adapted to be fitted to the vehicle chassis 3. The frame 6 supports loads such as pontoon 12 and bridging element 13, and the element 8 is provided with an enlarged portion 7 extending downwardly between the wheel axles. The device may be used with military vehicles.
Patent GB-1198860-A (GB)
Title: An Improved Spacer for Use in the Packaging of Articles
Inventor: WILKIE JOHN STRACHAN
IPC: B65D25/04
Filed: 1967-12-28
Abstract: 1,198,860. Packaging. WILKIE & PAUL Ltd. 22 Oct., 1968 [28 Dec., 1967], No. 58764/67. Heading B8C. A spacer-package, e.g. for bottles comprises a flat member 10 having curved faces 13, 14 which embrace the bottles 16 when folded. It may be of moulded plastics. In Fig. 1, the member is folded at 11 so that spines 17 abut each other to produce a spacer, Fig. 3, for use in a container 12. Articles of various shapes may be accommodated. In a modification, Fig. 4, the package may have additional curved faces 13a, 14a, spaced from the central part by platforms 20, 21 on which the bottles stand when the curved faces are folded to embrace them (Fig. 5, not shown). This assembly may be shrink-wrapped, if desired. Automatic packing may be employed.
Patent GB-1357539-A (GB)
Title: Fibrous materials
IPC: C04B28/34
Filed: 1970-12-11
Abstract: 1357539 Laminated product IMPERIAL CHEMICAL INDUSTRIES Ltd 22 Nov 1971 [11 Dec 1970] 59040/70 Heading B5N [Also in Division D1] A bonded fibre product is obtained by treating inorganic fibres with a solution of an aluminium phosphate and then heating to deposit aluminium phosphate from solution. The fibres may be glass, asbestos, alumina, zirconia, calcium silicate or aluminium silicate especially in the form of glass, slag or mineral wool. In Examples 2 and 3 a glass fibre mat was treated with the binder solution then pressed to squeeze out excess solution, a second layer added, treated with solution and pressed and the procedure repeated until six layers were assembled. The laminate was cured between steel plates faced with polyethylene for two days at 200 C. to produce a rigid board. The aluminium phosphate comprises 1 to 5 molecules of a hydroxy compound preferably water, Cl to C10 aliphatic alcohol or an amino, phenyl, hydroxyl, carboxyl or alkoxy substituted aliphatic alcohol, and an anionic group chosen from chloride, bromide, iodide, nitrate, sulphate, acetate benzoate or perchlorate in each repeating unit. The aluminium/phosphorous atomic ratio may be 1 : 2 to 2 : 1. Examples are aluminium chlorophosphate ethanolate (AlPClH 25 C 8 O 8 ), aluminium chlorophosphate hydrate (AlPClH 11 O 9 ), aluminium bromophosphate ethanolate (AlPBrH 25 C 8 O 8 ) or the product of treating aluminium orthophosphate hydrate with hydrogen chloride or chlorine, to give AlPClH 7 O 7 . The aluminium phosphate may be mixed with a silicate such as ethyl silicate, isopropylsilicate, monoethanolamine orthosilicate, sodium or potassium silicate, a silica sol., aluminium oxychloride, a gypsum/silica mix, cement and/or a surface active agent. The binder(s) are dissolved in water or a polar organic solvent and applied by spraying or sprinkling to a loose fibrous mat. The mat may be then heated to 50 to 800 C. in order to precipitate aluminium orthophosphate but preferably the mat is packed into a mould or pressed between plates to form a rigid product.
Patent GB-1356065-A (GB)
Title: Process for treating tobacco
IPC: A24B3/18
Filed: 1971-12-23
Abstract: 1356065 Puffing tobacco REYNOLDS LEASING CORP 23 Dec 1971 [28 April 1971] 60083/71 Heading A2C  A process for treating tobacco comprises introducing tobacco into an impregnating zone, simultaneously introducing into said zone and into contact with said tobacco a stream of vapours of a compound having an atmospheric pressure boiling point between -50 and +80C., the temperatures of said tobacco and said vapour introduced into said zone' being, respectively, below and above the boiling point of said compound at the pressure prevailing therein, withdrawing the tobacco impregnated with said compound from said zone, controlling the rate of vapour introduction into said zone with respect to the rate of tobacco introduction thereinto such that the weight ratio of compound in the withdrawn impregnated tobacco is in the range of 5 to 200 parts by weight of compound per 100 parts by weight of tobacco (dry 'basis), and suddenly subjecting the withdrawn impregnated tobacco to vapour expanding conditions whereby the tobacco is also expanded. The apparatus used is similar to that described in Specification 1253183, but differs in the provision of a vapourizer 20 to vaporize the impregnating compound before it is introduced into the bottom end of the impregnator 4. A pressure responsive element 68 within the impregnator 4 controls the amount of liquid impregnating compound flow through a control valve 18 and hence the flow of vapours into the impregnator 4, Impregnated tobacco is withdrawn through a star feed valve 36 into a duct 38 leading to an expander 6 where it is expanded by treatment with a hot gas in the manner described in Specification 1222308. The reorderer 12 comprises an inclined rotating drum in which a fine spray of water restores the moisture content of the expanded tobacco to about 12 to 13%. The preferred impregnating compounds are hydrocarbons and halogenated hydrocarbons, especially trichloromonofluoromethane, but many suitable organic compounds are listed.
Patent GB-1492540-A (GB)
Title: Building materials
IPC: C04B18/16
Filed: 1973-12-31
Abstract: 1492540 Cement composition R E MUNDY 1 April 1975 [31 Dec 1973] 60198/73 Heading ClH A composition capable of setting when mixed with water, comprises cement works precipitator dust, a setting agent and sodium carbonate and/or potassium carbonate. The setting agent may be cement and/or calcium chloride. The composition may also contain borax and also sand, resin sand, or pigment. The composition may be moulded or otherwise shaped or used for rendering purposes.
Patent GB-1333569-A (GB)
Title: Photoelectric polarisation analyser
IPC: G02F1/03
Filed: 1970-12-29
Abstract: 1333569 Photo-electric polarimeters NIPPON KOGAKU KK 29 Dec 1970 [29 Dec 1969] 61639/70 Heading G1A In a polarization analyzer for measuring both the rotation of the polarization plane and also the phase difference between the O and E components caused by passage of a plane-polarized beam through a sample S, two A.C.-actuated polarizing devices, e.g. KDP crystals, X 1  and X 2  cause the output from a photo-tube 3 to have two frequencyshifted components which correspond to the two quantities to be measured and are fed back to actuate two other polarizing devices C, H so as to reduce the two output components to zero. The light passes first through a polarizer P, which defines a reference plane of 0 degrees. Other stationary elements in the analyzer are quarter wave plates Q 1 , Q 2  and an analyzer A. The two actuating A.C. voltages for the KDP crystals are derived from a pulse generator (13), Fig.3 (not shown) which is arranged in series with a plurality of bi-stable multi-vibrators to give two signals phase displaced by #/2. The KDP crystals may be replaced by magnetic devices utilizing the Faraday effect. The two resulting phase-displaced components of the photo-tube output are separated in synchronous rectifiers 5, 6. The component corresponding to the rotation caused by the sample drives a servo 10 which rotates a half-wave plate H, the null position of the plate being indicative of the rotation produced by the sample. Similarly the null position of a Soleil-Babinet compensator C indicates the phase change in the specimen. In another embodiment the compensator C is dispensed with and the D.C. output from the servo 11 is applied to the element X 2 . In this case the applied feedback voltage in the null position indicates the phase change.
Patent GB-693093-A (GB)
Abstract: 693,093. Electric condensers. BOSCH GES., R. Dec. 12, 1951 [Dec. 13, 1950], No. 29076/51. Drawings to Specification. Class 37. A band of dielectric material is given a thin metallic coating which, in turn, is given an insulating coating. Two such bands may be wound into a condenser. A strip of paper or polyethylene is coated with zinc on which is deposited a thin film of magnesium oxide or quartz. When paper is used, the condenser is impregnated with oil. The thin insulating film assists in preventing break-down.