baber/WOPTO huggingface dataset:
Patent GB-761590-A (GB)
Title: Production of isocyanates
Filed: 1954-03-25
Abstract: A process for the production of an organic isocyanate comprises in a first stage reacting a solution or suspension of an amine in an inert solvent with a solution of phosgene in an inert solvent in a mixer operating at a speed of more than 1000 revolutions per minute, without external heating, and in a second stage subjecting the reaction mixture thus obtained to a temperature of 100 DEG  to 200 DEG  C. while introducing phosgene, thereby to complete the phosgenation.  Mixers mentioned are turbo mixers, colloid mills and centrifugal pumps.  The second stage of the process may be effected continuously.  Mono-, di- or polyamines may be employed as starting materials.  In examples: a -naphthylisocyanate is prepared by reacting chlorobenzene solutions of phosgene and a -naphthylamine in a turbomixer and passing the mixture, with phosgene through heated tubes and distilling the product (1); dicyclohexyl methane-4,41-diisocyanate is obtained in a similar process using 4,41-diamino-dicyclohexylmethane as the amine starting material, o-dichlorbenzene as solvent, a centrifugal pump for mixing the solutions of reactants and a V4A-steel vessel for the second stage of the process (2); in a similar process octadecyl isocyanate is obtained using octadecylamine as starting material and chlorbenzene as solvent (3); p-ethoxyphenyl isocyanate is similarly obtained using p-phenetidine as starting material (4); diphenylmethane-4,41-diisocyanate is obtained using 4,41-diaminodiphenyl-methane as starting material in a process similar to (2), the initial mixing of the reactants being effected in a colloid mill (5); cyclohexane-1,4-diisocyanate is similarly obtained from diaminocyclohexane using chlorobenzene as solvent (6); cyclohexyl isocyanate is similarly obtained using cyclohexylamine as starting material (7); diisocyanatotoluenes are obtained using a mixture of 1-methyl-2,4- and 2,6-diaminobenzenes as starting material in a process similar to (2), (8).
Patent GB-193724-A (GB)
Title: Improvements in and relating to surgical splints
IPC: A61F5/058
Filed: 1922-03-27
Abstract: 193,724. Wright, F. March 27, 1922. Splints.-Relates to adjustable splint sets, sections of which may be combined by means of push-fit joints to form arm or leg splints as required. According to the invention the set consists of an outer splint bar a in three sections and an inner splint bar b in two sections. the sections being connected by sockets a<1>, b<1>. In Fig. 1 the arrangement is shown as a leg splint, a metal guard or casing in two parts c, c<1> being detachably hinged to the inner bar b, and carrying hasps which are fastened to the outer bar by eyes and pins a<2>, additional securing being given by locks f<*>. A similar casing is similarly secured to the two lower sections of the splint bars. The splint is kept in place by a footrest j, a. leg strap j<2> and two thigh straps f, f<1>. For use as an arm splint, Fig. 2, the upper section of the outer bar is removed, and the lower sections are connected at right-angles to one another. A shoulder strap f<3> gives support for the forearm. A forearm set may be constructed from the lower members alone. The forearm and arm splints for adults may be used as leg splints for a child.
Patent GB-830104-A (GB)
Title: Improvements in or relating to production of sheets of rubber or like materials
Filed: 1958-03-19
Abstract: Aqueous dispersions of natural or synthetic rubbers or high molecular plastomers, which may contain vulcanizing agents and fillers and may be pre-vulcanized, are passed continuously between two belts each covered with a layer of coagulant.  The coagulant, e.g. calcium nitrate 20, methanol 80 parts, which is contained in baths through which the belts pass, migrates under pressure into the latex.  The belts either have upstanding edges or there are narrow bands arranged so as to enclose the space between the belts in the lateral direction.  These upstanding edges or bands need not have a uniform width or thickness throughout, so that both laterally and in the thickness of the sheet a profile or shape may be formed. Specifications 448,184, 469,145 and U.S.A. Specifications 2,032,941, 2,120,720, 2,120,721, 2,241,814, 2,244,948, 2,268,678, 2,308,951 and 2,712,159 are referred to.ALSO:Aqueous dispersions of natural or synthetic rubber or high molecular plastomers or mixtures of these which may contain vulcanising agents and fillers and may be pre-vulcanised, are passed continuously between two belts each covered with a layer of coagulant.  The coagulant, e.g. calcium nitrate 20, methanol 80 parts, which is contained in baths through which the belts pass, migrates under pressure into the latex.  The belts either have upstanding edges or there are narrow bands arranged so as to enclose the space between the belts in the lateral direction. These upstanding edges or bands need not have a uniform width or thickness throughout, so that both laterally and in the thickness of the sheet a profile or shape may be formed. Specifications 448,184 and 469,145, U.S.A. Specifications 2,032,941, 2,120,720, 2,120,721, 2,241,814, 2,244,948, 2,268,678, 2,308,951 and 2,712,159 are referred to.
Patent GB-227025-A (GB)
Title: Improvements in brooders for raising chickens or the like
IPC: A01K31/18
Filed: 1924-04-09
Abstract: 227,025. Brain, A. H., and Vitex, Ltd. April 9, 1924. Rearing-appliances. - A chicken brooder of the kind wherein a heating lamp 14 in an under-compartment 10 projects into the heated chamber 1 above, through a hole 12 in the floor 6 of the latter, which lamp is surrounded by a wire gauze guard 21, is provided with a metal casing 13 completely closed at the sides and top and located within the wire gauze guard but surrounding the lamp so that the fumes of the latter are confined entirely to the under-compartment. The air enters the under-compartment through a hole 20 and a removable baffle device 31 and leaves by holes 32. This lamp 14 is slidably mounted in guides 18 on a base member 9 hinged at 15 and supported in its normal position by a longitudinally sliding bar 16. A cowl 22 of the guard 21 deflects the heat downwardly. To ventilate the heated compartment the walls are hollow, air entering by holes 26 and passing through an opening formed by hingeing the top portion 28 of the inner wall. this flap 28 being retained in various positions by a rack 29. The heated chamber 1 communicates with a run-out compartment 2 by means of an opening 35 covered by flaps 36 of textile material, and the run-out compartment communicates with the atmosphere by an opening 37 normally closed by folding up the run 38 which is made in several sections hinged together. This compartment also has runs 46, 48 and a feeding shelf 47. Windows 50, 51 are provided in the roof over both compartments 1, 2 and, in the. side wall of compartment 2, these windows and the roof 5 being slida'bly mounted.
Patent GB-1062461-A (GB)
Title: Improvements in or relating to polychromatic intaglio printing machines
IPC: B41F9/08
Filed: 1964-03-03
Abstract: 1,062,461. Inking apparatus. SOC. TECHNIQUE D'IMPRESSIONS FIDUCIAIRES. March 3, 1964 [Oct. 23, 1963], No. 8997/64. Heading B6C. An inking and wiping device for a multicolour intaglio printing machine comprises a plurality of inking rollers 6-9, a first wiping roller 10 which rotates without slipping in contact with the intaglio plates 4 on a cylinder 3 so as to compact ink in the bottom of the engravings and to remove a part of the excess ink from the engravings and from the plate surfaces, and a second roller 11 which rotates in the same direction as the roller 10 but at a slightly greater peripheral speed to remove further excess ink from the engravings and plate surfaces preparatory to a final wiping by a roller 12. The wiped plates 4, with the regulated volume of ink compacted into the engravings, print on sheets carried on the sectors 2 of an impression roller 1. The roller 10 is cleaned by rollers 16 and 17, the roller 17 itself being cleaned by brushes 19 provided in a solvent tank 20, and a doctor blade 18. The roller 11 may be reciprocated axially. The rollers 11 and 12 are cleaned by brushes 19 and blades 18. The roller 12 rotates in the opposite direction to the roller 11 and removes ink completely from the plate surfaces. The rollers 10-12 are adapted to avoid mixing of the ink colours.
Patent GB-1449435-A (GB)
Title: Dynamo-electric machine rotors
IPC: H02K3/00
Filed: 1975-03-05
Abstract: 1449435 Dynamo-electric machines SINGER CO 5 March 1975 [22 March 1974] 9055/75 Heading H2A A dynamo-electric machine rotor comprises a substantially cylindrical member 12 carrying axially extending conductors 15 which form end windings 25 at opposite ends of the member 12, there being spaced from each end of member 12 a winding guide disc 13 having apertures spaced apart round its periphery, a part of each end winding being disposed between the member 12 and the disc 13 and the remainder of the end winding lying on the other side of the disc 13. This end winding arrangement is stated to allow a rotor of a given size to carry a greater number of conductors and thereby develop greater power. There may be two or more discs 13 at each end of the rotor. The member 12 and discs 13 shown are made of plastics material.
Patent GB-768204-A (GB)
Title: Method of producing sliding machine parts of aluminiumí¬silicon alloys
IPC: C22C1/04
Filed: 1955-03-29
Abstract: Sliding machine parts are made by pressing &c. (see Group XXII) a mixture of powders of aluminium, or aluminium alloy, and silicon. The mixture preferably contains 5-35 per cent Si and may also contain Sn, Pb, Cd, FeAl3 and Mg2Si. Alternatively it may contain 30 per cent Si and 70 per cent of Al-Cu alloy containing sufficient Cu that the Cu content of the mixture is 1 per cent.
Patent GB-994499-A (GB)
Title: The use of water-soluble polymers for sizing paper
Inventor: POSCHMANN FRANZ
IPC: C09J139/04
Filed: 1963-03-08
Abstract: Polymers used in sizing paper (see Division D2) are derived from imidazole derivatives having an ethylenically unsaturated polymerizable group on the ring nitrogen (monomer I), with or without one or more of the following comonomers:  up to 95% by weight of one or more polymerizable unsaturated compounds containing in the molecule a carbonamido group with one or two substituents on the nitrogen atom (monomer II); up to 50% by weight of one or more further water-soluble monomers (monomer III); and up to 30% by weight of one or more water-insoluble monomers (monomer IV).  Polymers referred to in the examples are: homopolymers of N-vinylimidazole (Examples 1-7, 9 and 10); binary copolymers of N-vinyl-imidazole with N-vinylcaprolactam (Examples 11(b) and (c), 12(a) and (b) and 14(b)), or N-vinyl-pyrrolidone (Example 13(e)), or acrylonitrile (Examples 13(a) and (c)), or acrylic acid (Example 13(b)), or ethyl acrylate (Example 16(a)); ternary copolymers of N-vinylimidazole with N-vinylpyrrolidone and N-vinylcaprolactam (Example 14(a)), or N-vinyl-pyrrolidone and acrylonitrile (Examples 11(a) and 13(d)), or dimethylacrylamide and acrylonitrile (Example 15), or N-vinylcaprolactam and vinyl acetate (Example 17); a ternary copolymer of butyl acrylate, acrylonitrile and vinylimidazole quaternized with dimethyl sulphate (Example 8); and a quaternary copolymer of N-vinylimidazole, N-vinylcaprolactam, N-vinylpyrrolidone and ethyl acrylate (Example 16 (b)). Specification 897,804 is referred to.ALSO:Paper is stock-sized or surface-sized with a water-soluble homopolymer or copolymer derived from one or more compounds of the type of imidazole having an ethylenically unsaturated polymerizable group on the ring nitrogen (monomer I). The copolymer may contain up to 95% by weight of one or more polymerizable unsaturated compounds containing in the molecule a carbonamido group with one or two substituents on the nitrogen atom (monomer II), or up to 50% by weight of one or more further water-soluble monomers (monomer III), or up to 30% by weight of one or more water-insoluble monomers (monomer IV).  The Specification includes lists of suitable monomers.  The paper may also be sized with rosin and alum, and may contain fillers, e.g. china clay. Specification 897,804 is referred to.
Patent GB-989400-A (GB)
Title: Improvements in and relating to circlip pliers
Inventor: COOK ERNEST
IPC: B25B27/20
Filed: 1963-03-08
Abstract: 989,400. Pliers. ANDERTON SPRINGS Ltd. April 6, 1964 [March 8, 1963], No. 9256/63. Heading B4W. Pliers for flexing circlips have a toggle-like action whereby a force multiplying effect is obtained as the handles are moved to bring the jaws into an operative position. As shown for use with internal circlips, the handles 11, 12 have transversely extending lugs 18, 19 connected by a common pivot 17. Cheek plates 20 are provided on opposite sides of the jaws 13, 14, the jaws being pivotally interconnected by laterally spaced pivots 21 and 22 anchored to the cheek plates. The ends of the handles 11, 12 are respectively connected to the jaws 13, 14 at pivot points 23, 24. As the handles are closed, the pivot 17 moves upwards towards the line joining pivots 23, 24 and thereby actuates a proportional force multiplication and a progressive reduction in the increment of movement of the jaws 13, 14. The final closing movement of the handles moves the pivot 17 over the dead centre position and to the side of the line x nearer the jaws 13, 14. The jaws are provided with co-operating gear teeth 25, 26 to prevent relative axial movement. In a modification for use with external circlips the jaws 13, 14 are replaced by crank-shaped jaws which cross one another and are opened instead of being closed as the handles are brought together. The cheek plates 20 are adapted for use with either pair of pliers.
Patent GB-642207-A (GB)
Title: Improvements in and relating to vehicle rear lamps
IPC: B62J6/04
Filed: 1948-04-01
Abstract: 642,207. Vehicle lamps; battery lamps. WILSON, H. F., and FAIRYLITES, Ltd. April 1, 1948, No. 9261. [Classes 39(ii) and 75(iv)] A cycle rear lamp (for use with dynamo or battery) provides an illuminated field of not less than 270 degrees and comprises a dome-ended red light-transmitting cylinder 7 the open end of which is secured to a ring 4 carrying a lamp socket 14 so that the lamp filament will be positioned at or near the centre of curvature of the domed end 6a, the cylinder 7 being longer than the radius of the domed end 6a. As shown the cylinder 7 has a flange 8 at its open end which is gripped by a turnedover flange 5 of the metal ring member 4. Around the inner periphery of the ring member 4 is formed an annular boss 3 which fits within a hole 2 in an angle fixing bracket 1 welded to the face of said ring member. A metal bulb-holder 14 has a frusto-conical body which is a push fit within the boss 3 and is flanged inwardly and helically at one end 15 to receive the screw-threaded cap of the lamp bulb and has a turned over flange 17 at its outer end which grips an insulating disc 16. A connecting plate 19 is clamped to the outside of the disc 16 by the prongs of a bifurcated rivet 18 the head of which forms the base contact for the lamp bulb. The hood 6 may be moulded from a synthetic plastic material and may be circular or hexagonal in cross section with longitudinal stiffening ribs formed on its inside surface.
Patent GB-548581-A (GB)
Title: Protection device for high-frequency electrical transmitters
IPC: H03F1/54
Filed: 1941-07-22
Abstract: 548,581. Valve amplifying circuits. McLEAN, F. C. July 22, 1941, No. 9271. [Class 40 (v)] High-frequency amplifiers T1, T, connected in parallel and operating with separate HT supplies HT2, HT3 are disconnected from the drive oscillator DU when any of the HT supplies fail. An amplifier A interposed between the oscillator and the output amplifiers is maintained operative by voltages derived from the supplies of HT1, HT2, and is blocked should these supplies fail. The amplifier A may comprise two screen-grid valves in cascade, one having its anode and screen-grid voltages supplied from a potentiometer across the source HT2, and the other from a similar potentiometer across the source HT3. An arrangement utilizing three or more parallel-connected amplifiers is described.
Patent GB-688953-A (GB)
Title: Improvements in and relating to a method of and means for permanent hair waving
IPC: A45D4/12
Filed: 1951-04-20
Abstract: 688,953. Hair-waving; appliances. VREEMAN, G. H. C., and BENTFORT, F. C. R. D. April 20, 1951, No. 9310/51. Class 131 In a method of permanent hair waving a tress of hair is wound on a hollow core of deformable material, covered by a moistened wrapper and squeezed between the heated jaws of a pair of tongs so as to flatten the core and distribute evenly about the hair the pressure exerted by the jaws. As shown, a prepared curl, consisting of a tress of hair 7 wound on a hollow core 6 of cardboard and covered bv a moistened wrapper 8, is squeezed between the cylin- - drical surfaces of the electrically-heated jaws 2, 3 of a pair of tongs so that the core is flattened and the hair is not crushed between the jaws and the core.
Patent GB-127961-A (GB)
Title: Machine for Corrugating or Embossing Tubes.
IPC: B31F1/20
Filed: 1918-06-06
Abstract: 127,961. Mayston, G. W., and Stevenson & Sons, H. June 6, 1918. Embossing.-A machine for embossing or corrugating paper, metal, or other tubes comprises a driven embossing-roller, formed with the pattern or corrugations, and on which the tube is placed, and a counterpart roller of larger diameter with a gap or gaps between the ends of the pattern segments, with means for rotating it into engagement with the embossing-roller. As shown, the'machine is designed for corrugating the ends 2, 3 of a paper box body 1, Fig. 7, the embossing- roller A on which the tubes 1 are placed being mounted on a vertical shaft D geared to a shaft L driven continuously by pulleys M, M<1>. The roller A is made up of a body part A and two corrugating or pattern disks B, B<1> removably fixed on the shaft. A second vertical shaft G is mounted in bearings on brackets H, H<1> on a slide I in an adjustable guide J so that the distance between the shafts D, G may be varied. A spring K preferably takes the thrust of the slide I. On the shaft G two pairs of pattern segments E, E<1> are fixed, counterparts of the disks B, with gaps between the pattern segments as shown in Fig. 2. Hand-wheels on the shaft G or other hand- or foot-operated devices are provided for rotating the shaft to engage the segments E, E' with the disks B, B', the segments being thereupon rotated by the disks and cooperating with them to emboss the tube until the next gap is reached when the shaft G stops.
Patent GB-1388419-A (GB)
Title: Control systems for gas-operated fog horns
IPC: G10K9/04
Filed: 1972-02-29
Abstract: 1388419 Audible signalling apparatus SAFE FLIGHT INSTRUMENT CORP 29 Feb 1972 [10 March 1971] 9361/72 Heading G4F A control system for a gas blown fog horn comprises an inlet plenum 16 communicating with a pressurized gas source 12, an outlet plenum 18 communicating with the fog horn 10, manually operated means 40 for placing the inlet and outlet plenums in communication, and automatic means for periodic operation of the horn. In automatic operation, gas flows into timing chamber 22 through opening 28 and snaps spring diaphragm 24 to its outer position, thus opening valve 30 by means of rod 32a and also opening valve 48 by means of a bell crank lever. Since opening 28 is smaller than the opening of valve 30, pressure is reduced in chamber 22 and diaphragm 24 moves to its inner position thus closing valves 30 and 48; the cycle is then repeated. A control device 26 holds the diaphragm in its inner position and is released to allow the diaphragm to move for intermittent operation of the fog horn. In a modification, Figs. 4-6 (not shown), the valve between the inlet and outlet plenums is opened only by manual operation and not by movement of the diaphragm during automatic operation.
Patent GB-892800-A (GB)
Title: A gauge for timing internal combustion engines
IPC: F02P17/04
Filed: 1959-03-18
Abstract: 892,800. Testing engine timing. LOPES, M. March 18, 1959 [March 18, 1958; March 30, 1958], No. 9478/59. Class 7(2). [Also in Group XIX] A gauge for determining top or bottom dead centre comprises a sensing element D which slides within a tubular sheath screwthreaded at m to screw into a spark-plug hole, the movement of the rod by the piston being shown on an indicator such as a dial E or graduated scale a 2 . The sheath comprises two telescoping sleeves A, B, which are adjusted relative to one another to adjust the amount by which the sliding rod D projects from the end member C which screws into member B and is also adapted to screw into the sparking plug socket. The gauge may also be provided with an indicator lamp I 1  with a lead W 1  for connection to the ignition circuit so that the ignition timing relative to top dead centre can be observed. A second indicator lamp I 2  is provided for checking valve timing, the lamp being connected in circuit with an adjustable contact Y which is arranged in contact with the valve stem S so that by breaking of the lamp circuit when the valve is opened the valve timing can be observed. For an engine with inclined sparking plug sockets the sensing element comprises a rod D, Fig. 5, abutting against balls in a member J curved to bring an end rod L parallel to the cylinder axis, the movement of the rod L by the piston being transmitted to the rod D by the balls. In a modification the rod D actuates a piston M 3 , Fig. 11, the space M 2  above which is filled with liquid and connected to a glass tube M 1  in which the column of liquid indicates the piston movement.
Patent GB-398925-A (GB)
Title: Improvements in covers for binding books, loose leaves and the like
IPC: B42F13/00
Filed: 1932-04-04
Abstract: 398,925. Covers for books &c. GREBEL, A., 40, Avenue Junot, Paris. April 4, 1932, No. 9625. Convention date, July 6, 1931. [Classes 16 and 146 (i).] A cover for books, loose leaves, &c. comprises a back a and two sides b formed of 1 plastic material, such as celluloid or synthetic resins, including phenol - aldehyde condensation products, the adjacent edges of the back and sides being provided with spaced recesses in such manner that these edges form the leaves of the hinges, a bore being made through each edge to accommodate the hinge pins. A book f, preferably mounted on tapes g, is adhesively or otherwise secured in the cover, or a stitched book, pamphlets, loose leaf books, reviews, &c. may be secured in the cover.
Patent GB-191323-A (GB)
Title: Improvements relating to the poppet valves in diesel engines
IPC: F01L3/08
Filed: 1922-04-04
Abstract: 191,323. Key, T. D. April 4, 1922. Casings; dirt and the like, excluding.-A lift valve for use in Diesel engines is made with a cast iron head and steel stem, a conical stem protector R being also provide'd locked against the head.