baber/WOPTO huggingface dataset:
Patent GB-1260819-A (GB)
Title: Curable artificial resin compositions
Inventor: BARGAIN MICHEL
IPC: C08G73/12
Filed: 1970-04-17
Abstract: 1,260,819. Polymer compositions. RHONE POULENC S.A. 17 April, 1970 [18 April, 1969], No. 18603/70. Heading C3R. A composition comprises (a) a prepolymer obtained by heating with H 2 N-B-NH 2 , where A contains #2 C atoms, B contains #30 C atoms, and D is a radical containing a C = C bond, and (b) an aromatic compound containing 2-4 benzene rings, which does not sublime or boil at <250 C. at atmospheric pressure. In (b) the benzene rings may form condensed nuclei, or can be linked by a valency bond or by an atom or group, e.g. -O-, -CO-, -CH 2 -, -CH(CH 3 )-, -C(CH 3 ) 2 -, -CH-, -CH 2 CH 2 -, -COOCH 2 -, -COO-, -CONH-, -S-, -SO 2 -, -NH-, -N(CH 3 )-, -N-, -N = N-, or -N=N-. The benzene rings #O may be substituted by -CH 3 , -OCH 3 , -F, -Cl, or -NO 2 . In examples, (b) is e.g. a mixture of o- and m-, or o-, m-, and p-isomers of terphenyl; diphenylmethane; diphenylamine; phenanthrene; 2,5,4<SP>1</SP>-trimethylbenzophenone; benzyl benzoate; chlorinated diphenyls; benzanilide; triphenylamine; N- methyldiphenylamine; triphenylmethane; diphenyl oxide; or azobenzene. Other compounds (b) are listed. Prepolymer (a) is of the type referred to in Specification 1,190,718. Many examples of A, B and D are listed. The compositions can contain, e.g. 2-25% wt. of (b). Prepolymer (a) may be formed in situ during the preparation of C, e.g. by mixing (b) and the precursors of (a), and heating to 50-250 C. The composition can be shaped, e.g. by casting while hot, or pressure-moulding after cooling and powdering. It can be cured by heating to 150-350 C.
Patent GB-618066-A (GB)
Title: Improvements in wringing machines
IPC: D06F45/18
Filed: 1946-06-22
Abstract: 618,066. Wringers. GOLD, R. L. June 22, 1946, No. 18795. [Class 138 (ii)] In a twin-roller wringing-machine in which the rollers are pressed together by a spring or springs supported in a housing or carrier, a screw-and-nut operating gear for adjusting the pressure is connected to the spring or springs or the housing therefor by a quick-release toggle mechanism of over-dead-centre type. The frame of the machine comprises four channel section members 10, 11, 12, with the rollers 14, 15 disposed in bearings 18, 19, in the end members 12. The bearings 18, which are slidably mounted, are connected to a plate spring 22 adapted to be stressed by a handle 29, which is rotatably but non-slidably mounted on a bracket 27 on the frame section 10, and has a depending screwed shank 28 engaging at its lower end a sleeve-nut 25 of non-circular section slidably mounted in a bearing 26 in the bracket 27. Two pairs of toggle links 34, 36, which are pivoted together by a pin 35, are pivoted at their upper ends to the sleeve nut 25 and at their lower ends to a lug 24 on a housing 23 in which the centre of the plate spring 22 is mounted. The links 34; 36 are normally held slightly beyond dead-centre by one or more helical springs 38, movement under the action of the springs being limited by hooks 40 on the upper links 34. In this position, the links act as a thrust member and permit the screwed shank 28 to apply pressure to the spring 22. In order to release pressure on the spring, the links are moved into a collapsed position by a crank 43 on a rod 41 pivotally mounted on the frame in bearings 42. The depending ends of this rod are connected by an operating bar 47 which extends across the front of the machine. In the case of an emergency, the upward movement of the bar effects immediate release of pressure. A cover 48 comprising front and rear portions is attached by clips 56 to the frame. At the front side, the cover may be bulged outwardly so as to provide an incline 51 adjacent the opening 50, so as to provide a feed passage to the two rollers. The front portion may have a slot 53 marked with a scale against which a pointer 55 connected to the sleeve nut 25 may indicate the applied pressure. The lower roller 15 is driven by a gear box 60 having a leveroperated spring-pressed clutch 59 and an additional driving gear 65 for an ironing- machine.
Patent GB-274851-A (GB)
Title: Improvements in and relating to electric insulating studs or rods
IPC: H01B17/12
Filed: 1927-07-15
Abstract: 274,851. British Thomson - Houston Co., Ltd., (Assignees of Weldon, J. J.). July 20, 1926, [Convention date]. Drawings to Specification. Moulding gums and resins.-Insulating rods or studs are formed of a bundle of cords of textile material such as cotton held together in a compressed condition by means of a binder such as bakelite. The rods may be formed with screw threads at suitable positions to take nuts formed of the same material. A mould for forming the rods comprises a trough with closed ends, and wedge-sectioned pressure members.
Patent GB-886958-A (GB)
Title: Improvements in or relating to the polymerisation of ketones
Inventor: THOMAS PETER RAYMOND
IPC: C08F16/36
Filed: 1959-04-02
Abstract: Crystalline polyvinyl ketones are made by (1) polymerizing a derivative of methyl vinyl ketone wherein the methyl group bears one, two, or three methyl substituents, or a carbon atom of the methyl group forms part of a cyclohexyl or phenyl ring which ring may be substituted by an alkyl radical, in the presence of a catalyst selected from alkali metals, alkali metal amides, or organometallic compounds, or hydrides or complex hydrides of the metals of Group Ia or IIa of the Periodic Table other than a lithium or sodium alkyl, or (2) polymerizing a derivative of methyl vinyl ketone wherein the carbon atom of the methyl group forms part of a phenyl ring which ring may be substituted by an alkyl radical, in the presence of a lithium or sodium alkyl catalyst.  The polymerization is preferably effected in an organic liquid such as toluene, hexane, petroleum ether, or tetrahydrofuran.  Specified monomeric ketones are ethyl, isopropyl, phenyl, p-tolyl, tert.-butyl, cyclohexyl, and 4-methyl cyclohexyl vinyl ketones.  Specified catalysts are ethyl magnesium bromide, sodium naphthalene, sodium isopropenyl, lithium styryl, lithium ethyl, lithium, sodium, lithium hydride, lithium aluminium hydride, lithium borohydride, calcium hydride, sodium hydride, sodium benzophenone, sodium aceto-acetic ester, lithium amide, sodamide, and lithium diethylamide.  The polyvinyl ketones may be formed into films and filaments.
Patent GB-848465-A (GB)
Title: Rotors of multi-stage axial flow compressors or turbines
Inventor: SUTTERS MICHAEL JOHN
IPC: F01D5/06
Filed: 1957-06-14
Abstract: 848,465. Turbines. NAPIER & SON Ltd., D. July 25, 1958 [June 14, 1957], No. 18899/57. Class 110 (3). The rotor of an axial-flow compressor or turbine comprises at least two adjacent rings of blades 9 having root projections 11 which lie within holes in two parallel blade-supporting discs 5, 6, annular driving-members 15 extending between the nearer blade-supporting discs and provided with upstream and downstream projections 14 which lie within holes in the adjacent discs. The discs, which resist the centrifugal forces due to the rotating blades, are each provided near the rim with a row of holes, each comprising a narrow outer part 7 and a wider part 8. The blades are disposed between the discs and each root projection 11 fits closely within the part 7 of the hole in the adjacent disc. An intermediate driving-ring 12 is disposed between the discs and has projections 13 disposed along its edges at twice the pitch of the holes in the disc, the projections entering the parts 8 of alternate holes in the adjacent disc. The parts 8 of the other holes in each disc are occupied by projections 14 on the annular interblade-ring driving-members 15. Annular sealing-members are provided radially outboard of the members 15 and extend, at their edges, beneath the blade platforms 17.
Patent GB-1001570-A (GB)
Title: Electrophotographic developers
IPC: G03G9/135
Filed: 1962-05-16
Abstract: A pigment such as carbon black or alumina hydrate is wetted with a wetting agent such as an organic or inorganic acid, an inorganic base, a ketone, an alcohol or a hydrocarbon, the agent containing a dye if alumina hydrate is used as the pigment, and the wetting pigment is suspended in a hydrocarbon carrier liquid which contains a dissolved resin, wax or linseed oil the dissolved resin, wax or oil being adsorbed by the wetted pigment.
Patent GB-600816-A (GB)
Title: Improvements in torque wrenches
IPC: B25B23/142
Filed: 1944-10-03
Abstract: 600,816. Torque wrenches. FAIRWEATHER, H. G. C. (Snap-on Tools Corporation). Oct. 3, 1944, No. 18935. [Class 61 (iii)] [Also in Group XIX] The torque applied to a wrench is measured by means of the displacement from the rest position of a torque resistant spring bar. The shank 11, Fig. 8, of the wrench is chambered and integral with it is the handle. The semicircular head 14 of the shank 11 is provided with a revoluble member 29 terminating in a polygonal shank which engages the wrench socket. The shank 11 is provided with thickened sides which are circularly recessed to receive a cylindrical bearing 32 provided with a diametrically disposed bore 33 which receives a closely fitting cylindrical rod 34 extending from the member 29 to serve as a torque-resisting beam. The beam 34 is joined to an extension rod 45 by means of the slitted extremity 42 of a clutching pin 40. The rod 45 is bent at one end to coact with a lever 48 operating the dial gauge. The calibrated dial guage 71, Fig. 14, is provided with a pin 77 which acts as a contact for a pointer 78 when any predetermined flex is imparted to the beam 34 and completes an electrical circuit from a battery 89, Fig. 8, to a bulb 88. An insulated electric lead 90 extends from the insulated socket 91 of the bulb 88 to the terminal housing 92 connected electrically to the dial pin 77 by means of the dial 71 and the circuit is completed by means of the pointer 78 and the shank 11.
Patent GB-1112942-A (GB)
Title: Foamed poly-ªÏ-lactams
IPC: C08J9/10
Filed: 1965-05-05
Abstract: Foamed poly-o -lactam is prepared by polymerizing the o -lactam in the presence of an anionic catalyst-cocatalyst system and in the presence of, as blowing agent, an allylic azide and an aliphatic hydrocarbon containing from 2 to 7 carbon atoms.  The blowing agent comprising an allylic azide and an aliphatic hydrocarbon having 2 to 7 carbon atoms is claimed.  By an o -lactam is meant a lactam derived from an a ,o -amino acid.  The allylic azides contain at least one azidomethyl group directly attached to a carbon atom which is bonded to another carbon atom by a double bond, the carbon atoms forming part of an aliphatic chain or an aromatic ring which is free from substituents which would so change the temperature at which the allylic azide begins to decompose at a rate which makes it an effective blowing agent that it would be below or above the lower or upper temperature respectively, at which polymerization of the o -lactam can be effected.  In Examples are used: dry t-caprolactam, precipitated calcium carbonate, potassium stearate, NaH/white mineral oil, diphenylcarbonate, b -lactone of 2,2,4 - trimethyl - 3 - hydroxy - 3 - pentenoic acid, a ,a 4 - diazidohexamethylbenzene, agitating with propane and with nitrogen-a comparative example. Dodecenylazide, n-butane, diphenylcarbamylimidazole, poly (diphenylolpropane carbonate), propylene, ethylene, mixed dimethylbenzylazides, n-pentane, n-hexane, laurolactam, n-heptane, TiO2, carbon black, polyamide resin, 2 - dimethylamino - 4,6 - dichloro - s - triazine, N,N1 - sebacyl-bis pyrazole and caprylolactam are used in further Examples.
Patent GB-495658-A (GB)
Title: Improved mixture for laying dust in streets, mines and so forth
IPC: C09K3/22
Filed: 1937-07-08
Abstract: Dust-laying compositions consist of a chloride or a chloride-double-salt of magnesium or calcium and less than 0,1 per cent of an effective wetting agent; a foam-forming agent may be added or the wetting agent may also be a foam-former.  The mixture may be applied dry and afterwards wetted, but is p  preferably atomized as a solution in water.  Double salts suitable are carnallite, tachhydrite, and mixtures of salts containing them, e.g. mother liquors of sea salt works.
Patent GB-319424-A (GB)
Title: Improvements in luminous letters, characters and symbols usable for advertising signs and the like
IPC: G09F13/04
Filed: 1928-06-30
Abstract: 319,424. Naylor, J. P. June 30, 1928. Signs.-Lamps 5 mounted on a backing 3 and having reflectors 7 and glass fronts 9 in order to give an intense illumination visible in sunlight are enclosed in casings or translucent mouldings having the shape of letters. Fig. 5 shows means by which the lamps are given reciprocating motion in the vertical plane. They are pivoted and connected by a rod 16 connected to a lever 18 reciprocated by a rotating cam 21. The letter may be moulded in transparent material such as glass, Fig. 10, the lamps being located in the raised portions h which form the letter. If the lamps are placed in series a device for short. circuiting a defective lamp is attached.
Patent GB-959833-A (GB)
Title: Improvements in or relating to screw rotor machines
IPC: F02B53/00
Filed: 1960-05-30
Abstract: 959,833. Rotary engines. SVENSKA ROTOR MASKINER A.B. May 30, 1960 [June 4, 1959], No. 19012/60. Heading F1F. A rotary motor of the intermeshing screw - type incorporates on each side of the plane passing through the axes of the rotors at least one valve member such as an axially movable slide 40, 42 interconnected by adjusting rods 52, 54 which are also connected to a reversing valve (not shown), the slides being so interconnected and adjusted that the inlet opening e.g. port 320, is of larger area than the outlet opening 300. In a modification, (Fig. 3, not shown) each valve comprises a cylindrical jacket cut off along a helical line and cooperating with slots in the casing wall, or in a second modification, (Fig. 6, not shown), is replaced by two flaps operable together to expose or cover one side of the rotors, or in a third modification, (Fig. 8 not shown), is replaced by radially movable portions of the jacket wall of the casing forming valves. Specifications 959,831 and 959,832 are referred to.
Patent GB-802598-A (GB)
Title: Improvements in or relating to photo-electric relays
Inventor: HOOK ERIC JOHN
IPC: G05B11/01
Filed: 1956-06-20
Abstract: 802,598. Photo-transistor circuits. BAILEY METERS & CONTROLS, Ltd. June 19, 1957 [June 20, 1956], No. 19139/56. Class 40 (6). A photo-sensitive circuit comprises a photosensitive transistor coupled to a second transistor and a positive feedback path from the second transistor to the first, the arrangement being such that the second transistor is either in a conducting or non-conducting condition depending on whether the illumination of the first transistor is above or below a predetermined value. In the circuit shown, in the absence of illumination, photo-transistor 1 is substantially non-conducting and transistor 3 is conducting so that a relay 31 is operated. When the illumination increases above a predetermined value the photo-transistor 1 becomes more conductive and transistor 3 is cut off, releasing the relay, the change-over from non-conductive to conductive states being assisted by feed-back produced by the common emitter resistor 5. In the conducting condition transistor 3 has a low collector potential and therefore does not dissipate much power.
Patent GB-713053-A (GB)
Title: Method of and apparatus for controlling the tools of machines for grinding and/or polishing glass
IPC: B24B7/24
Filed: 1952-07-29
Abstract: 713,053. Hydraulic machines. GLACERIES DE LA SAMBRE SOC. ANON. July 29, 1952 [Aug. 20, 1951], No. 19169/52. Class 69 (2). [Also in Groups XXIII, XXXV and XXXVII] Oil under pressure is admitted to cylinders 49, 49', Fig. 9, to press rotating grinding or polishing tools 3, 3<SP>1</SP> against a moving glass sheet a in a glass surfacing machine (see Group XXIII). The oil supply system includes a tank 60, Fig. 11, a pump 61, an accumulator 62, a pressure regulator 64, a reversing valve 72 and a distributer 75. If the load on a motor 50 rotating the tools increases a relay B is automatically operated to start a motor 80 which adjusts the regulator 64 to reduce the pressure applied to the tools. If the load on the motor 50 continues to increase, despite this action, relays B1 ... B4 close in succession to remove resistors R1 ... R4 from the circuit of the motor 80 and accelerate the action of the regulator. If the load is still abnormal, a relay B5 closes to start a motor 90 which operates the reversing valve 72 and distributer 75 to produce a pressure reversal in the cylinders 49, 49' and move the tools clear of the glass. If normal conditions are restored before the motor 90 is operated, a relay B6 reverses the motor 80 to return the regulator 64 to its correct seating. A spring-loaded valve (not shown) returns surplus oil from the regulator to the tank 60. Non-return ball valves 92, 92' are included in the inlet ducts to the cylinders 49, 49'. These valves are provided with two seats 95, 96, Fig. 14, the distance between which may be adjusted by a sleeve 98. The ball 94 is normally held against the seat 96 which permits oil to pass in the direction of the arrow. The time taken by the ball to reach the seat 95 in the event of a drop in feed pressure allows the safety device to operate. To compensate for the loss in weight of the tools due to wear the pressure applied to them may be adjusted by a needle valve 37, Fig. 4, which responds to axial displacement of the tool shaft 36. Specification 700,835, [Group XXIII], is referred to.
Patent GB-1323279-A (GB)
Title: Method of forming an adherent coating on foods
IPC: A23L13/50
Filed: 1972-04-26
Abstract: 1323279 Adherent coating on foods DCA FOOD INDUSTRIES INC 26 April 1972 [7 June 1971] 19264/72 Heading A2B A continuous adherent edible coating is formed on food pieces by providing a gel forming material on the surface of the piece, for example by dipping into a solution thereof or by forming the piece from a slurry comprising comminuted food particles and the gel-forming material, exposing the piece to a gelation agent, for example a solution containing alkaline earth metal ions, whereby a substantially continuous skin enveloping said piece is formed there being a residue of the gelation agent remaining on the surface of the skin, and thereafter coating the piece, with a fluid batter containing gel-forming material whereby an addition gel structure is formed. The product may be breaded. The product may be fried or frozen for later frying.
Patent GB-121799-A (GB)
Title: Improvements in or relating to Feed Water Supply Apparatus for Steam Generators.
Inventor: CLARKSON THOMAS
IPC: F22D5/22
Filed: 1917-12-31
Abstract: 121,799. Clarkson, T. Dec. 31, 1917. Feed-water, controlling. - When the boiler water-level rises above the normal, the feed pump suction-valve, which normally is free to lift and fall back in the usual manner, is held off its seat by mechanism under the control of a float on the boiler. The suction valve J is held off its seat by a lever K on a shaft L<1> so connected to the float spindle A that it is rocked by the rise and fall of the float. The shaft has imparted to it a constant reciprocating movement to prevent it from sticking in the bearings. The movement is imparted through levers O, O<2>, E<2> by a rocking- shaft E. The float spindle is also so connected to the rocking-shaft that it is constantly reciprocated. Specifications 18658/03, [Class 122, Steam-engines &c.], and 108,507 are referred to.
Patent GB-315090-A (GB)
Title: Improvements in or relating to gas producers and the like
IPC: C10J3/34
Filed: 1928-07-04
Abstract: 315,090. Reading, H. C. July 4, 1928. Producers. - In a down-draught suction gas producer, above the fuel bed are one or more depending tubes f, g which form with a casing d chambers h, j, the former having a pipe k leading to the atmosphere, and the latter a pipe l leading to a vaporizer m surrounding the grate c and to a valve n through which air may be supplied. By this construction air can be drawn in through the chamber h and air or air and steam through the chamber j, separate combustion zones being maintained in the tube g and fuel bed below.
Patent GB-613974-A (GB)
Title: Improvements in and relating to tubular nut fasteners
IPC: F16B37/06
Filed: 1946-06-28
Abstract: 613,974. Anchor nuts. UNITED-CARR FASTENER CORPORATION. June 28, 1946, No. 19388. Convention date, July 17, 1945. [Class 89 (i)] Nuts of the tubular type for use in blind installations have flanges 12 integral with the barrel 11 and formed with diverging arms 13 bent back to form converging sections 15, again bent at 17 to form retaining lugs 16. The width A is such that the nut is readily inserted through the hole 2 with a snap action. The plate 1 may be dished as shown in Fig. 3 to receive the lugs 16 and the sections 15 are collapsed by action of the bolt 5 permanently to engage the plate 1. The arms 13 are weakened at 18 to localize the bending so that after collapsing to the form shown, Fig. 3, further tightening of the bolt effects locking, due to the resilience of the arms.
Patent GB-1420820-A (GB)
Title: Screw jacks
IPC: B66F3/16
Filed: 1973-04-24
Abstract: 1420820 Screw jacks METALLIFACTURE Ltd 23 April 1974 [24 April 1973] 19439/73 Heading B8J A jack comprises a metal-pressing body 10, including a column 11 of hollow pyramidal or conical form, a lead screw 19 rotatably mounted in the body 10, a nut 24 on the screw 19, a gear 26 rotatable with the nut 24, a pinion 30 rotatably mounted on the body 10 and in mesh with the gear 26, and a load bearing member 25 on the screw 19. As shown the screw 19 is telescopic, and the nut 24 is rotated through the gear 26 by a tool (not shown) inserted into a non-circular recess 34 in the pinion 30 to effect rotation thereof. The screw 19 is carried by a cast metal block 18 fitted into a complementary recess 15 in the column 11, which is made in two axially joined parts, (11a), (11b), Fig. 2 (not shown).
Patent GB-240798-A (GB)
Title: Improvements in protective arrangements for electric installations
IPC: H02H3/02
Filed: 1925-07-31
Abstract: 240,798. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 6, 1924, [Convention date]. Cut-out arrangements for the protection of electric circuits comprise a quick-acting circuitbreaker shunted by an overload time switch and a resistance in series.
Patent GB-1112115-A (GB)
Title: Coal plough having pivotable cutter bit carriers
IPC: E21C27/32
Filed: 1966-05-03
Abstract: 1,112,115. Mineral-mining ploughs. GEWERKSCHAFT EISENHUTTE WESTFALIA. 3 May, 1966 [10 May, 1965], No. 19466/66. Heading E1F. A cutter bit-carrying plate is connected to the body of a mineral-mining plough by a parallelogram linkage. More than one such plate may be so mounted on the body. Movement of the linkage is limited by appropriately disposed stops on the plough.