baber/WOPTO huggingface dataset:
Patent GB-516497-A (GB)
Title: A new or improved means for ventilating airtight, waterproof and like protective clothing or articles of wear
IPC: A62B17/00
Filed: 1938-06-30
Abstract: 516,497. Respiratory appliances. GARNER, K. M. June 30, 1938, No. 19454. [Class 81 (ii)] [Also in Group VII] A ventilating-device for protective clothing comprises a collapsible tubular air pump fitted with a return spring and adapted to introduce air drawn through a filter. The air pump comprises a flexible tube 1, Fig. 3, fitted with valves 4, 5 and return spring 6. The air passes through filtering material 7 enclosed in a container 8, and a projecting spacing member 14 is provided with openings 16, the device being secured in an opening in the garment by bands 12. The garment may be provided with an outlet fitted with a non-return valve and filter. As shown in Fig. 4, the device is applied to the side of a hood comprising an upper portion 19 provided with a front window 20, and with a skirt 21 secured by straps 22, 23.
Patent GB-773262-A (GB)
Title: Improvements in or relating to a movable and folding barrier component forming a barbed wire entanglement for military and other purposes
IPC: F41H11/08
Filed: 1955-07-06
Abstract: 773,262. Barbed wire entanglements. SEE, J. L. A. July 6, 1955 [July 6. 1954; Aug. 20, 1954], No. 19526/55. Class 20(1) Barbed wire entanglements which can be compressed for storage or transport and extended for use comprise a series of spaced plane frames A to F on which are strung longitudinal and diagonal barbed wires so that rotation of each frame closes it up on the adjacent frame and so on. Each frame comprises a loop 3 to which is welded the central curves of diagonal arms 4. The arms 4 are pointed at their ends to penetrate into the ground. Other types of frames are in Figs. 5 and 6 (not shown). The diagonal wires may be arranged so that the frames are closed up by rotation alternately in opposite directions. The frames &c. may be slid on a holder 19, Fig. 7, having an adjustable stop 20.
Patent GB-488137-A (GB)
Title: Improvements in and relating to the production of dried sheet material
IPC: B29D7/00
Filed: 1937-07-14
Abstract: 488,137. Electrolytic surface treatment of aluminium and its alloys. BRITISH CELLOPHANE. Ltd. July 14, 1937, No. 19553. Convention date, July 31, 1936. Drawings to Specification. [Class 41] [Also in Group XIII] A roller for drying wet sheet material has a surface of aluminium or an alloy thereof which has been anodized preferably by a method in which it is placed in a lead-lined tank containing a 15 per cent solution by weight of sulphuric acid at a temperature of from 68 to 72‹ F. Electrolysis is effected for about 50 minutes at a current density of about 18 amperes per square foot of the aluminium surface. The anodized surface may be " sealed " by immersion in boiling water for about 30 minutes.
Patent GB-669800-A (GB)
Title: Improvements in, and relating to, bedjackets and similar wearing apparel
IPC: A41D10/00
Filed: 1950-08-04
Abstract: 669,800. Bed jackets. STRAUS, T. Aug. 4, 1950, No. 19557/50. Class 141. A bed jacket or similar garment has its back slit centrally from the lower edge upwards or formed in two halves 1a, 1b joined together for a short distance 6 adjacent the neck. Pairs of elastic strips 2a, 2b and 3a, 3b may be provided on the inside or outside of the garment, each pair joining the armhole seams 4a, 4b with the opposite centre back edges 5b, 5a respectively. Alternatively, single strips of elastic can be used.
Patent GB-204444-A (GB)
Title: Improvements relating to propeller pumps
IPC: F04D3/00
Filed: 1922-07-17
Abstract: 204,444. Metropolitan-Vickers Electrical Co., Ltd., (Schmidt, H. F.). July 17, 1922. Screw and like propellers.-In a propeller pump, t h e radial pitch of the blades is constant, the axial pitch increases from the leading to the trailing edge, and the disc ratio is equal to the reciprocal of the ratio of the trailing edge pitch to the leading edge pitch. The disc ratio is equal to the vena contractae coefficient of the pump and its value lies between 0.55 and 0.65. The propeller 18 is located at the section of minimum area of a casing 15, Fig. 1, which has a diverging inlet 16 and outlet 17, the inlet passage being divided by a partition plate 25, whilst the outlet passage contains a stationary tail piece 23 for the propeller and directing vanes 24. These vanes at the forward edge are tangential to the flow from the propeller and are curved so as to deflect the flow axially. The propeller has two blades 21 mounted on a shaped boss 22 which lines up with the cone 23. The blades have an increasing pitch from leading to trailing edge the ratio of the trailing edge pitch to leading edge pitch being substantially equal to the reciprocal of the disc ratio. The disc ratio is also substantially equal to the vena contractae coefficient which has a value lying between 55 and 65. When this coefficient has a value .625 and regarding the leading edge pitch as unity then the trailing edge pitch should be 1.85 according to the above rule. In practice, the trailing edge pitch would be about 2.0 in order to bring in a correction for friction. Blades so constructed have incidentally another property in that the cosine of the angle included between the trailing edge and the plane of rotation is equal to the disc ratio.
Patent GB-923461-A (GB)
Title: Metallo organic polymers
IPC: C08F8/42
Filed: 1961-05-31
Abstract: Polyvalent metallo organic polymers are manufactured by adding a monohalo organo metallic compound wherein the metal is polyvalent, to a solution of a polymer containing vinyl aromatic groups and in which at least part of the aromatic nuclei are substituted with alkali metal.  The products are linear polymers containing pendant organo metallic groups, a typical structure being <FORM:0923461/IV(a)/1> wherein M is the organo metal group of the polyvalent metal and R, R1 and R2 are radicals derived from vinyl or vinylidene compounds. Preferred monohalo compounds are trimethyl tin chloride, triphenyl tin chloride and/or trimethyl silyl chloride.  The example illustrates the manufacture of <FORM:0923461/IV(a)/2> from triphenyl tin chloride and the lithium substituted product obtained from poly-p-bromostyrene and butyl lithium, using tetrahydrofuran as solvent.  Polymers containing As, Sb, Bi, Si, Ge, Sn, Pb, B, Al, Gd, In, Tl, Zn, Cd, Hg, Mg, Ti, Zr or Hf may be obtained.  Other monomers which may be used in forming the polymers used are ethylene, acrylonitrile, propylene, vinyl chloride and vinylidene chloride.
Patent GB-1165138-A (GB)
Title: Synthesis of Fluorinated Benzimidazoles and Imidazopyridines
Inventor: HARRIS JOHN FREDERICK
IPC: C07D235/10
Filed: 1966-05-04
Abstract: 1,165,138. 2-Trifluoromethylbenzimidazoles and imidazopyridines. FISONS PEST CONTROL Ltd. 20 April, 1967 [4 May, 1966]. No. 19664/66. Heading C2C. 2-Trifluoromethylbenzimidazoles and 2-trifluoromethylimidazopyridines of the formula (where R<SP>1</SP> is hydrogen, C 1-6  alkyl, or -COOR<SP>6</SP>, where R<SP>6</SP> is alkyl, substituted alkyl, aryl or substituted aryl; one of Z<SP>1</SP>, Z<SP>2</SP>, Z<SP>3</SP> and Z<SP>4</SP> is a nitrogen atom or a group CR<SP>2</SP> and the remaining Z groups are CR<SP>3</SP>, CR<SP>4</SP> and CR<SP>4</SP>, and R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are the same or different and are hydrogen, alkyl, hydroxy, alkoxy, nitro, halogen, pseudo-halogen, substituted alkyl, carboxy, carboxy ester, carboxy amide, N-substituted carboxy amide, N-disubstituted carboxy amide, amino or mono- or di-substituted amino, thiol, alkylthiol or oxygenated derivatives thereof, sulphonic acid or esters or amides thereof, or a heterocyclic ring attached to the benzimidazole or imidazopyridine system through a nitrogen atom), are prepared by reacting the corresponding 1,2-phenylene diamine or 2,3- or 3,4-pyridine diamine with trifluoroacetic acid, distilling off the formed water in the presence of a water-immiscible solvent during or at the end of the reaction, condensing the aqueous distillate, recovering the trifluoroacetic acid from the aqueous distillate, and returing this to the process.
Patent GB-293698-A (GB)
Title: Improvements in supporting struts for picture frames and like flat articles
IPC: A47G1/14
Filed: 1928-07-09
Abstract: 293,698. Thompson, W. H., and Thompson, J. M. July 8, 1927, [Convention date]. Card stands.-A device for supporting picture frames &c. at various inclinations to a supporting surface consists of a pair of members 2, 4 hinged together, one member being secured to the frame and the other member resting upon the supporting surface, an adjustable stop member 5 being pivotally carried on a pin 6 projecting from one of the members 2, 4 for abutment with the other member to limit the material approach of the members. In the construction shown the stop member 5 is provided with an offset end 7, formed with a number of surfaces at different distances from the pivot 6, to abut against the other hinge member 2. The hinge members 2, 4 may be closed together by rotating the stop member 5 through half a revolution, a flange 11 on the member 5 limiting closing movement. The Specification as open to inspection under Sect. 91 (3) (a) states that the flange 11 may have an inclined edge and the stop member rotated through approximately a quarter of a revolution tu permit the members 2, 4 to close together. This subject-matter does not appear in the Specification as accepted.
Patent GB-358087-A (GB)
Title: Improvements in television methods and devices
IPC: H04N3/10
Filed: 1930-07-01
Abstract: 358,087. Television. LOISEAU, L. M. J., 11, Avenue de la Grande Armee, Paris, and COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats Unis, Montrouge, Seine, both in France. July 1, 1930, No. 19952. Convention date, July 1, 1929. [Classes 40 (iii) and 40 (v).] In television scanning apparatus using moving slots, at least one of the slots is formed by a narrow zone 18, Fig. 2, moving through, and modifying the properties of, a transparent medium 13 so that only light passing through the zone acts on a plioto-electric cell 17 or receiving screen, and the zone is formed by an elastic compression or shock wave moving through the medium with a speed depending only on the material of the medium. Light from an object 11 passes through a polarizer 12, and an analyser 14 is arranged to transmit only light which has passed through the zone 18. As shown, the second scanning movement is obtained by a zone 19 in a second medium 15, but it may be obtained by slots in a rotating drum, Fig. 16 (not shown), or an oscillating mirror, Fig. 17 (not shown). The impulse is applied to the medium 24, Fig. 3, by a condenser plate 21 , to which a charge is applied periodically by an oscillating neon tube 36. According to modifications: the condenser plates are at right-angles to the direction of propagation and the impulses are limited by an earthed ring, Fig. 5 (not shown); the impulse is applied by the condenser dielectric, Fig. 4 (not shown) ; the condenser applying the impulse comprises a metallic electrode applied directly to a semi-conductive electrode of agathe, liquids, or slate, the surface of separation constituting the dielectric. Generating oscillations. The electric oscillations are applied to the condenser from an oscillating neon tube directly, Fig. 7 (not shown), or through a valve amplifier, Fig. 8 (not shown), which may be coupled to the neon tube by a transformer, Fig. 9 (not shown). According to modifications: the oscillations are applied to the condenser 39 from a four-electrode oscillator 43, Fig. 10 ; each impulse consists of a train of rapid vibrations produced by valve oscillators 44, 45 controlled by a neon tube 36, Fig. 18. Synchronizing. At the transmitter, Fig. 11, neon tubes 51, 52 apply impulses to each scanning medium, and a master oscillating neon tube 57 starts each scanning movement and transmits a control signal through a valve 58. The valves may be supplied by common batteries, Fig. 13 (not shown). At the receiver, the signal to start each scanning movement acts on thermionic valves directly, Fig. 14 (not shown), or through a neon tube, Fig. 12 (not shown), or a mechanical vibrator such as a tuning fork. Colour television. Reproduction in colour may be obtained by passing the light at the transmitter and receiver through similar multi-coloured gratings, or by transmitting three different colours in rotation.
Patent GB-596772-A (GB)
Title: Improvements in or relating to the production of hollow artificial filaments
IPC: D01D5/247
Filed: 1945-08-03
Abstract: <PICT:0596772/IV/1> <PICT:0596772/IV/2> A process for producing hollow filaments comprises the extrusion of a viscose having a salt point of 5-6 and containing 1.9-2.5 per cent by weight of total sulphur, 6-9 per cent sodium hydroxide, 6-9 per cent cellulose and from 5 to 35 per cent of sodium carbonate (calculated on the cellulose content) into a coagulating bath containing 11-12.5 per cent of sulphuric acid, 21-25 per cent sodium sulphate and 5-6 per cent zinc sulphate. The temperature of the bath may be maintained at from 40 DEG  to 60 DEG  C.  Filaments prepared by this process have a cellular structure comprising a plurality of voids separated by partitions which radiate irregularly from at least one internal point of the filament as shown in Fig. 1.  The voids overlap and lie irregularly spaced along the axis of the filament as shown in Fig. 2. This structure enhances the rigidity of the filaments, but does not effect their flexibility.  Dyes or pigments may be present in the spinning solution.  Stretching up to from 40 to 50 per cent of their length may be applied to the filaments.  The immersion time in the coagulating bath depends on the denier. Filaments so obtained may be cut into staple fibre, may be crimped by shrinkage or may be impregnated with synthetic resins.  They are particularly useful for the manufacture of apparel where lightness and protection from heat and cold are of importance.  In an example, a viscose of salt point 5.5 having 8.4 per cent sodium hydroxide content, 7.3 per cent cellulose, 2.3 per cent total sulphur and 25 per cent sodium carbonate (based on cellulose) is extruded to produce a 120-filament thread of denier 300, into a bath at 50 DEG  C. containing 12.3 per cent sulphuric acid, 22 per cent sodium sulphate and 5.3 per cent zinc sulphate.  The immersion is 20 inches.  A 40 per cent stretch is effected after leaving the bath.
Patent GB-565527-A (GB)
Title: Improvement in composite billets, especially suitable for the manufacture of ammunition and methods of making same
IPC: B23K20/227
Filed: 1943-11-30
Abstract: 565,527. Making compound billets. SUPERIOR STEEL CORPORATION. Nov. 30, 1943, No. 19986. Convention date, March 18, 1943. [Classes 83 (ii) and 83 (iv)] Jointing by rolling. -A composite billet particularly of brass or copper clad steel for the manufacture of ammunition components, such as bullet jackets, has the cladding member 5 introduced endways between flanges 4 welded to the backing members 2. The flanges may be spaced from the edges to provide a space for the welding metal 6 or they may be at the edge in which case the welding metal overlaps the meeting faces. A space 8 is left between the flanges and the edges of the member 5. Similar flanges (not shown) may be provided for cladding the other side of the member 2. After the brass &c. strips are positioned, the upper parts of the flanges are bent down at 7 to hold the strips in place. This may be done by passage through plain cylindrical rolls. The flanges are made of cheap mild steel, whereas the member 2 may be of high or low carbon steel, austenitic manganese steel, stainless steel, copper, &c. The cover strip may be of brass with high copper content, stainless steel, copper, silver, &c. Specification 12147/01, [Class 82], is referred to.
Patent GB-531037-A (GB)
Title: Improvements relating to the braking of asynchronous electric motors
IPC: H02P3/18
Filed: 1939-07-10
Abstract: 531,037. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 10, 1939, No. 20065. Convention date, July 9, 1938. [Class 38 (iii)] Non-regenerative braking. The Specification relates to a system for braking a polyphase asynchronous motor by disconnecting one phase of the supply and connecting condensers to the motor. A vectorial analysis of the operation of the system is contained in the Specification.
Patent GB-1128845-A (GB)
Title: Improvements in or relating to the axial location of parts in bores
Inventor: HUTCHINSON PHILIP
IPC: F16D3/41
Filed: 1966-05-06
Abstract: 1,128,845. Universal joints. BIRFIELD ENG. Ltd. 2 May, 1967 [6 May, 1966], No. 20140/66. Heading F2U. [Also in Division B3] In a universal joint, journal pegs 6 on a central cross-member are journalled in needle bearings in the two yoke members. The bearings comprise needle rollers 5 and outer bearing cups 4, which are retained by circlips 9. The circlips are secured by projections 23 formed in a staking operation and normally only one bore of each yoke is staked.
Patent GB-234768-A (GB)
Title: Improvements in adjustable brackets for supporting head-rests or other articles
IPC: A61G15/12
Filed: 1924-08-26
Abstract: 234,768. Ritter Dental Manufacturing Co., Inc., (Assignees of May, A. J.). May 28, 1924, [Convention date]. Double and multiple hinges; pivoting adjustments.-A pivoted adjustable support comprises a bracket arm 11, a supporting arm 20 and an intermediate section 13 having longitudinal manually operable thrust elements adapted to close the split collars 37, 38 around the bearings 12, 19 and hold the arms 11, 20 in adjusted position. The thrust elements comprise plugs 51 engaged by the wedge 55 and the transversely movable wedge 56, and also wedge members 46 which engage inclines 44 on the split collars. The length of each thrust element is adjustable by means of the screw 47 and bolt 48, and the supporting arm 20 is made removable and interchangeable by providing a headed screw 22.
Patent GB-987820-A (GB)
Title: Production of guanosine-5-phosphates by fermentation
Filed: 1963-05-21
Abstract: Guanosine-51-phosphate is prepared by growing a strain of B.subtilis low in nucleotidase in an aqueous medium containing assimilable sources of nitrogen and carbon.  The strain specified is B. subtilis, NRRL.  B-2911, and is suitably grown in a medium having starch or maltose as a source of carbon and soybean extract or casein hydrolysate as a source of nitrogen.  Adenine is preferably a component of the medium, inducing higher accumulations of guanosine phosphates in the fermentation broth. Some guanosine diphosphate is also produced, and possibly some guanosine triphosphate, but these may be hydrolysed to the monophosphate by heating. After fermentation, which is suitably carried out at about 28 DEG  C. for ten days, with aeration of the medium, the broth may be freed from protein by treatment with perchloric acid, and assayed microbiologically, after neutralization, with a guanine-requiring organism such as B. subtilis G 295.  The following procedure is described, whereby the broth resulting from the growth of a strain of B. subtilis, is tested for nucleotidase activity, as an indication that the cultural organism had a similarly low activity; the centrifuge clarified broth after growth is incubated for 16 hrs. at 28 DEG  C. with disodium guanosine monophosphate, and the incubate then chromatographed.  Comparison of the intensity of the bands of unhydrolysed nucleotide, and nucleoside under U.V. examination gives an indication of the nucleotidase activity of the broth, and thence the organism grown therein.
Patent GB-1487117-A (GB)
Title: Composite rotor housings for rotary piston internal combustion engines and a method for their manufacture
IPC: B23P15/00
Filed: 1975-05-14
Abstract: 1487117 Rotary positive - displacement fluidmachines GENERAL MOTORS CORP 14 May 1975 [30 May 1974] 20301/75 Heading F1F [Also in Division B3] A method of forming a housing member 30 for an I.C. engine comprises depositing on a ferrous strip 12 a thin layer of powdered copper and nickel and/or iron, heating to fuse the copper to bond the other particles to each other and to strip 12 in a porous layer 14, forming the housing member 30 from strip 12 with layer 14 on the outside and die-casting aluminium 22 on the strip so that it penetrates the porous layer and is bonded by it to strip 12. After die-casting, the inner surface of strip 12 is ground and a layer of chromium applied, e.g. by electro-plating. The ferrous strip 12 is of a hardenable carbon steel. The powder is 55-85 parts copper, 45-15 parts nickel and/or iron. The copper powder is finer than the nickel or iron. The two ends of the strip 12 are butt-welded at 20. An example is given, giving grain size, percentages, steel material and temperatures, &c.
Patent GB-248317-A (GB)
Title: Improvements in variable resistance unit
IPC: H01C10/32
Filed: 1925-08-12
Abstract: 248,317. Scott, W. M., (Assignee of David, B. W.). Feb. 24, 1925, [Convention date]. Variable resistances.- A rheostat or potentiometer for wireless &c. is enclosed in a cup-shaped casing 1 with a sheet-metal cover 9 secured together by dowel-pins 10. A bushing 12 secures the casing to the panel 16 and supports a spindle 19 carrying the contact-device. This consists of a band 25 of elastic metal secured at 27 to an arm 21 attached to the spindle 19 and bent at 26 as shown to form a contact shoe of considerable area. The arm 21 is bent as shown at 23 to form a support for the shoe 26 in its angular motion without interfering with its yielding to irregularities in the resistance 5. A spring 31 bears on the end of the spindle 19 to hold it in place and make electric connection with it.
Patent GB-715436-A (GB)
Title: Anode containers for electroplating
Inventor: HULL RICHARD OSTRANDER
IPC: C25D17/10
Filed: 1952-08-13
Abstract: 715,436. Electroplating. FORCITE CORPORATION. Aug. 13, 1952, No. 20362/52. Class 41. A container for scrap anode material for use in plating comprises solid end walls 11, 12 and perforated side walls 16 assembled to provide a downwardly tapering section and contact blocks 20 extending throughout the length of the side walls. As shown the end walls i i, I2 are of channel section so as to shield the blocks 20 from the electrolyte on three sides. The end walls are connected at the bottom by a channel member I3 which may be perforated. The upper ends of the end walls are connected by spaced cross bars 14, 15. The container is provided with hooked rods I7 for suspension from bus-bar I8, the blocks 20 are connected to the bus-bar by copper braid 2I. The container is completely coated with insulating material. The side walls I6 are of expanded metal. In a modification the side walls consist of a series of spaced vertical and horizontal bars mounted across the frame. The blocks 20 are preferably of carbon or graphite for acid solutions and of steel for alkaline solutions.