baber/WOPTO huggingface dataset:
Patent GB-1263702-A (GB)
Title: Improvements in polymerisable cements and laminates produced therewith
Inventor: RAYNER LAURENCE STEPHEN
IPC: C08F2/02
Filed: 1968-06-07
Abstract: 1,263,702. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 May, 1969 [7 June, 1968], No. 27263/68. Addition to 1,238,304. Heading B5N. [Also in Division C3] Syrups suitable for use as cements in bonding together two or more sheets of materials, such as glass, polyvinyl chloride, polymethyl methacrylate, cellulose acetate and cellulose acetate butyrate, comprise a solution or dispersion of (A) up to 50% by weight, based on the weight of the solution or dispersion, of at least one polymer selected from chlorinated polyethylene, polyethyl acrylate, ethylene-methyl acrylate copolymers containing 50-75% by weight of ethylene, ethylene-vinyl acetate copolymers containing 50-85% by weight of ethylene, ethylene-methyl methacrylate copolymers containing 65-75% by weight of ethylene, ethylene-ethyl acrylate copolymers, ethylene-hydroxyethyl methacrylate copolymers and polyesters (e.g. polypropylene adipate) in (B) an alkyl acrylate in which the alkyl group has at least 4 carbon atoms and, optionally, up to 20% by weight, based on the total weight of (B), of a copolymerizable monomer. The syrup may contain a " cold-setting " polymerization catalyst or a catalyst which is activatable by heat or U.V. radiation. Where more than two sheets are bonded together, at least one of the cement interlayers may be formed of a material different from the polymerized syrup, e.g. polyvinyl butyral, plasticized polymethyl methacrylate and ethylene/hydroxyethyl methacrylate copolymer. In a preferred embodiment, an edge gasket having an inwardly extending flange is used for spacing apart adjacent sheets; the gasket may be formed from polymethyl methacrylate, polypropylene, vinyl chloride polymers or copolymers, or aluminium. Laminates bonded with the specified syrups are impactresistant and are particularly useful in glazing for banks, prison windows, armoured bullion vehicles, personnel-carrying vehicles, highspeed vehicle windscreens, and glazing of cricket pavilions and golf clubhouses. In examples laminates are formed from several sheets of glass and a sheet of polyvinyl chloride.
Patent GB-1426615-A (GB)
Title: Bag filte arrangement
IPC: B01D46/04
Filed: 1973-06-07
Abstract: 1426615 Bag filter AIR PREHEATER CO INC 7 June 1973 27271/73 Heading BIT A gas filter has an inlet duct 36 supplying dirty gas to a chamber containing tubular filter bags 22. Gas enters at 15, and some heavy dust may fall through slot 42 while the rest is carried up through slot 38 and grating 40 to the filter bags. The bags are cleaned periodically by blasts of compressed air through nozzles 32, and loosened dust falls into hopper 12 which has removal gate 34. Grating 40 serves as a catwalk for servicing bags 22.
Patent GB-1236462-A (GB)
Title: Grid wall panel connections
IPC: A01K1/03
Filed: 1968-06-07
Abstract: 1,236,462. Cages. OVERLIDASYSTEM A.B. 7 June, 1968[9 June, 1967], No. 27282/68. Heading A1M. [Also in Division E2] A wall panel 1, Fig. 2, is connected to a grid wall panel by locating the grid bars 4 in recesses 5 in an edge 6 of the wall panel and closing the recesses by a detachable locking element 7. A cage structure is built by inserting bars 2, 3 and 4 of the bottom front and rear, and the roof grating walls of the cage in the slots 5 on edges of partition and end walls 1, and then sliding the locking members 7 over the T-shaped portions 6 of the edges. The structure may be suspended on cantilevers supported from a wall &c. by rods threaded through end and partition walls 1 and arms connecting the rods with the cantilevers.
Patent GB-171270-A (GB)
Title: A trap for rats and other vermin
IPC: A01M23/04
Filed: 1920-09-24
Abstract: 171,270. Webb, J. E. Sept. 24, 1920. Animal traps.-A self-setting trap comprises a pair of passage-ways f open at both ends, each having its floor formed of a pair of counterweighted tilting platforms n which abut together at the centre. Between the passage-ways is a receptacle for bait and other lures. The receptacle may be divided into three compartments by a bent strip k supported on cross-wires l. The - central compartment j has perforations m in its side-walls and contains the bait, the outer compartments i containing cotton-wool impregnated with an attractive perfume. A hinged cover a<1> closes the passage-ways and bait receptacle, and the whole is mounted on a vessel d which receives the trapped animals.
Patent GB-191484-A (GB)
Title: An educational drawing appliance or puzzle
IPC: G09B11/00
Filed: 1921-10-14
Abstract: 191,484. Smith, A. J. Q., (Alpha Game & Toy Co., Inc.). Oct. 14, 1921. Design-building apparatus.-An educational appliance comprises a fixed base 51 and a movable guided sheet 53 on which is a printed or stencilled dissected map, picture, diagram, &c. and a sheet of tracing paper 52 affixed to the base; the parts of the picture &c. are correctly positioned for tracing by the aid of index marks 62 - - 73 on the movable sheet and base. By omitting the index marks the device may be employed as a puzzle. The movable sheet may be in the form of a strip movable across the base.
Patent GB-709176-A (GB)
Title: Improvements relating to the preparation of isonicotinic acid
Filed: 1952-10-30
Abstract: Isonicotinic acid is prepared by oxidizing with aqueous nitric acid or an aqueous mixture of nitric acid and a nitrate at elevated temperature and under super-atmospheric pressure a mixture of pyridine homologues including one containing an alkyl substituent in the paraposition.  After oxidation the bulk of the isonicotinic acid is isolated from the resulting liquor and converted to the corresponding hydrazide, while an additional amount is then obtained from the mother liquor by precipitation of the copper salt.  The examples describe the oxidation of the following mixtures: b -picoline, g -picoline and 2 : 6-lutidine with or without a -picoline; 2 : 4-lutidine, 2 : 6-lutidine, a -picoline and b -picoline; and pyridine homologues containing 2 : 4 : 6-collidine.
Patent GB-1269240-A (GB)
Title: Process for the modification of carbon black
IPC: C09C1/56
Filed: 1969-05-29
Abstract: 1,269,240. Treatment of carbon black. KONINKLIJKE ZWAVELZUURFABKIEKEN. 29 May, 1969 [30 May, 1968], No. 27328/69. Heading C1A. The ink pigment properties of carbon black are improved by reacting the black in the dry state with 0À05-2À0% by weight, based on the weight of the black, of gaseous SO 3  so as to provide the reacted carbon black with a pH of from 2-6. The reaction is carried out at 100- 300 C. either by contacting the black and SO 3  at room temperature and heating or by heating the carbon black to the required temperature and passing in SO 3 , either at room temperature or at an elevated temperature, with the aid of a carrier gas. The reaction may be carried out for 1-30 minutes. The moisture content of the untreated carbon black is advantageously less than 0À1% by weight. The pH of the treated carbon black may be increased if desired by heating it at above 300 C. while passing nitrogen or air therethrough, or by heating it with unreacted carbon black at 100-300 C. Alternatively the pH may be increased by treating it with gaseous ammonia.
Patent GB-389407-A (GB)
Title: Improvements in or relating to feeding means for a paper or metal band or strip, electric wire, sound film or like continuous material
IPC: G11B15/34
Filed: 1932-10-01
Abstract: 389,407. Film feed-mechanism &c. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Oct. 1, 1932, No. 27344. Convention date, Oct. 2, 1931. [Class 40 (ii).] Comprises an improved feeding means for a sound-film, band, electric wire, or the like, in which a member engaged by the band or the like is rotatable about an axis which has freedom of movement in at least one plane, and the shape and size of the member is chosen so that a pulsation force in the band on one side of the member will cause the latter to tilt so that the resultant movements of translation and rotation compensate one another. Fig. 1 shows a loop of a film band 2 which passes over a looselysuspended roller 1 ; in order to prevent sudden pulsations in the part 3 of the film from interfering with the movement of the left-hand part of the loop it is necessary that the point 5 shall remain stationary. It is shown by mathematical considerations that this condition will' be satisfied if the radius of gyration of the roller 1 is made equal to the radius of the loop. This is effected substantially by providing a hollow roller, as shown by Fig. 6, which has two flanges 9, the shank portion 10 serving as the film-bearing surface. Fig 7 shows the application of the invention in the case where a band 11 is moved from a magazine reel 12 of square section to a continuouslydriven circular reel 13. To prevent pulsations due to the irregular winding .from the reel 12 from being transmitted to the reel 13 the band is passed over three rollers 14, 15, 16, the roller 15 being constructed similarly to the roller of Fig. 6. The shaft of the roller 15 is fast on a lever 19 which is pivoted at 20 and is controlled by a spring 18. To compensate also for the masses of the lever 19 and spring 18, the moment of inertia of the roller is further slightly increased by making the flanges 9 heavier. The roller 15 may, if desired, be suspended so that it shall have freedom of movement in more than one plane. The application of the invention is described to a combined sound and picture film reproducing apparatus of the kind set forth in Specification 383,214, the tightening roller of the film loop being constructed according to the present invention.
Patent GB-257127-A (GB)
Title: Improvements in and relating to refractometers
IPC: G01N21/43
Filed: 1925-10-30
Abstract: 257,127. Tully, B. J., and Rayner Optical Co., Ltd. Oct. 30, 1925. Refractometers.-A refractometer for the determination of the refractive index of precious stones, consists of a. hemisphere 1 of glass having a high refractive index and carried in a rotatable disc 2 in a casing 3 with its flat face horizontal. It is illuminated by light reflected from a mirror 9 and is viewed by an eye-piece 23 through the optical system 16, 14, 15, 13, 7, so arranged that the optical path is of considerable length. To permit the use of hemispheres of different refractive index the prism 13 is adjustable about a pivot in the casing 3. The refractive index of a gem placed on the surface of the hemisphere is read off directly on the graduated disc 24 in the focal plane of the eye piece 23. The increased length of optical path improves the definition and enlarges the scale readings.
Patent GB-426788-A (GB)
Title: Improvements relating to the manufacture of moulded articles containing inserts of metal or the like
IPC: B32B15/08
Filed: 1933-10-05
Abstract: Inlays of sheet metal, glass, porcelain, &c. are inserted in synthetic resin by moulding a resin body with a recess in its surface and as it leaves the press placing in such recess an inlay of slightly less surface area; shrinkage of the resin on ageing is then used to fix the inlay in position without warping the inlay or resin. On shrinkage the resin may not merely grip, but may also overhang the edges of the inlay.
Patent GB-987655-A (GB)
Title: Aminoplast molding compounds and the production thereof
IPC: C08L61/20
Filed: 1963-07-11
Abstract: An aminoplast resin moulding composition comprises an urea-melamine-formaldehyde resin, a filler comprising alpha-cellulose, a colourant, a stabilizer, and an accelerating amount of zinc sulphite.  Hexamethylene tetramine or magnesium carbonate may be used as stabilizer with dialkyl or dialkoxyalkyl esters of phthalic, sebacic, tartaric and adipic acid as additional stabilizer.  Poly-C2- 6 alkylene glycols of molecular weight up to 400 or zinc stearate may be included as mould lubricants.  The filler may also comprise barium sulphate, wood flour, paper, cotton, canvas, asbestos, mica flakes, pearl shell chips, filaments and glass fibres and fabrics.  In the example titanium dioxide is used as colourant.
Patent GB-1022362-A (GB)
Title: Improvements in electrical connections
Inventor: ROUDIER RENE
IPC: H01J29/92
Filed: 1963-07-11
Abstract: 1,022,362. Flexible connectors. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 11, 1963 [July 18, 1962; June 7, 1963], No. 27483/63. Heading H2E. [Also in Division H1] For electrical connection between a fixed (8) and a movable (10) terminal (Fig. 2), a resilient metal strip 15, of arcuate cross-section (Fig. 3, not shown) and bent to provide facing rectilinear portions 15 2 , 15 3  and a curved portion 15, is attached between the terminals. Two such strips connect the high-voltage supply to an electron gun 9 (Fig. 1, not shown) mounted on a carriage 12 movable on rails 13 which are themselves movable upon other rails (not shown). The gun is contained in a vacuum chamber 1, the flanged inlet arrangement 3 allowing the supply to be fed to the fixed terminals 8 inside the chamber. The metal strips 15 have crosssection arcs of between 10 and 90 degrees but preferably between 40 and 45 degrees, to increase the rigidity of the strip except at the curved portions 15, where the cross-section is rectilinear. As the gun carriage rolls along the rails 13, the straight sections 15 2 , 15 3  of each strip move towards or away from each other, the angle of bend section 15, changing, ranging from 120 to 210 degrees, while the radius of curvature of the bend remains unaltered. In the movements of the gun in a direction parallel to the rectilinear portions 15 2 , 15 3  the latter are caused to alter in length, the curved portion 15 1  moving along the strip. To give a greater range of movement of the gun the strips 15 may be mounted on the terminals at a slight inclination to the vertical, allowing the movable terminals 10 to be brought directly beneath the fixed terminals 8.
Patent GB-603596-A (GB)
Title: Improvements in toilet-roll holders
IPC: A47K10/32
Filed: 1946-11-19
Abstract: 603,596. Toilet-roll holders. THOMAS, H. E. Nov. 19, 1946, No. 27554/45. [Class 18] A toilet-roll holder comprises a hollow roller 2 provided with perforations 4 which permit the escape of vapours from a deodorising or like material 1 contained within and adapted to roll on the inner surface of the roller 2. The roller, which is supported between arms 5 of a bracket 6, comprises detachable end caps 3 or is formed in two or more parts having a screw thread connection to permit insertion of the deodorising material.
Patent GB-665093-A (GB)
Title: Improvements in and relating to telescoped couplings
IPC: H05K9/00
Filed: 1946-09-14
Abstract: 665,093. Rod and tube couplings. AIRCRAFT RADIO CORPORATION. Sept. 14, 1946 [June 14, 1946], No. 27638/46. Class 99 (i). [Also in Group XXV] A coupling for two telescoped parts comprises a ring of balls in a coupling member adapted to move axially to compress the longitudinally slotted end of one of the parts on to the other. The closure member 14 of a shielded electrical housing such as for a cavity resonator or high frequency oscillator fits within he housing 1, the end of which is slotted to provide a number of resilient fingers 13, chamfered at their ends. A coupling nut 26 screwing on to the housing has an annular groove containing balls 29 which engage the chamfered ends of the fingers. Specification 665,123, [Group XXIV], is referred to.
Patent GB-1512383-A (GB)
Title: Fluid pressure braking systems
IPC: B60T8/36
Filed: 1975-04-29
Abstract: 1512383 Anti-skid braking devices AUTOMOTIVE PRODUCTS Ltd 29 April 1975 [30 Jan 1974 21 June 1974] 50544/74 and 27661/74 Divided out of 1512382 Heading F2F A pressure-fluid modulating valve 85 includes a shut-off valve 98 and a variable volume chamber 102 in a passage between inlet and outlet ports 91, 97 of a housing 86, the valve normally being held open against a closure spring by a pin 101 on a plunger 100 which forms a movable wall of the chamber 102 and is normally urged to the left (minimum chamber volume) by a thrust rod 104 acted on by a spring 119 and by a differential area piston 105 separating a smaller space 111, through which the rod 104 passes and which is always connected to a pressure accumulator 17, from a larger space 107 which is normally also connected to the accumulator 17 by a valve 56 but on skid conditions the valve 56 connects the space 107 to a reservoir permitting the fluid pressure in the space 111 to urge the thrust rod 104 to the right when the braking pressure moves the plunger 100 to the right increasing the volume of the chamber 102 so reducing the braking pressure and permitting the shutoff valve to close. As shown the valve 85 controls the pressure from a master cylinder 21 to front brakes 83, the rear brakes 14 being supplied from the pressure control part 20 of the pedal operated brake pressure controller 19 through an antiskid device 84.  The construction of the valve 56 is described in Specification 1,512,382.
Patent GB-694654-A (GB)
Title: Improvements relating to devices for dispensing paste-like substances from tubes
IPC: B65D35/28
Filed: 1950-11-13
Abstract: 694,654. Collapsable tubes. BRYNOLF, G. J. H., and BULLIMORE, L. A. W. Nov. 13, 1951 [Nov. 13, 1950], No. 27668/50. Class 66. A device for dispensing the contents of collapsable tubes comprises means for supporting the tube with the nozzle exposed, a pressuredistributing plate lying along substantially the full length of the tube and means for applying pressure to the plate to expel the tube contents consisting of an eccentrically pivoted cam roller. The means for supporting the tube may comprise two side plates 14 at right angles to a back supporting member 11 and end plate 12. The back plate is provided at its upper end with a hole for screwing to the wall and inclines forward down the greater part of its length before curving away, as shown, at the bottom to rest against the wall. The end plate is slotted to receive the neck of the tube. Brackets may be provided externally on the side plates to support, for example, toothbrushes. The pressure-distributing plate 25 is made to present a flat surface to the tube over the greater part of its length but is curved away at its lower end in the opposite direction to the back plate so as to contain the end of an almost completely expelled tube as shown in Fig. 13. Pressure is applied by a cam roller 29 working against a number of strengthening ribs on the back of the plate 25. The roller is made semi-circular and is supported by eccentrically mounted pins 30 resting in slotted grooves 17 in the side plates 14. Depression of the operating arm 31 rotates the cam, urging the pressure plate against the tube and extruding the contents. To avoid the use of a large cam roller the slots are provided with three bearing surfaces 17 at progressively decreasing distances from the back plate in which the roller pivot pins can work and the roller is released to its furthermost position from the plate and then moved forward and downwards twice during the emptying of a tube.
Patent GB-1221670-A (GB)
Title: Improvements in or relating to powered rollers or drums for endless conveyors
Inventor: FAULKNER GEORGE
IPC: H02K7/10
Filed: 1968-06-11
Abstract: 1,221,670. Motor driving arrangements. G. FAULKNER. 28 Aug., 1969 [11 June, 1968], No. 27718/68. Heading H2A.  A powered roller for driving an endless conveyer comprises a shell 10 having end plates 12 in which are journalled stationary stub-shafts 16, 16<SP>1 </SP>carrying at their inner ends a cradle 24 located within the shell and supporting an electric motor 26 which drives a pinion 28 meshing with a gear ring 29 mounted on the inside of the shell. Stub shaft 16<SP>1</SP> has a bore 32 through which the supply conductors 33 for the motor are led stub shaft 16 may also have a bore for supplying lubricant to the gearing. Openings 34 are provided in the end plates for the passage of cooling air.
Patent GB-879422-A (GB)
Title: Improvements relating to apparatus for baling fibrous material
IPC: B65B27/12
Filed: 1959-08-13
Abstract: 879,422. Baling-machines. LINDEMANN, W. Aug. 13, 1959 [Aug. 28, 1958], No. 27726/59. Class 94(1). Apparatus for baling cotton &c. comprises opposed belts 25 feeding the material into a compression chamber 10, the distance between the belts progressively diminishing towards the chamber to compress and force air out of the material prior to its entering. The belts may be adjusted towards and away from one another and the chamber may be apertured to permit withdrawal of air through a conduit 34. The chamber 10 is moveable and after filling passes beneath a further pair of conveyer belts Fig. 2, (not shown), spaced apart so that vertically reciprocating plunger may descend into the chamber and press in further material fed by the second pair of belts. Air is again drawn out of the apertures. Finally the chamber moves beneath a fixed top closure member, (not shown), and a plunger rises from beneath carrying with it the moveable floor 13 of the chamber to effect further compression.
Patent GB-286340-A (GB)
Title: Improvements in and relating to screens for photographic purposes, photo mechanical printing processes and the like
IPC: G03F5/12
Filed: 1926-11-04
Abstract: 286,340. Trist, A. R. Nov. 4, 1926. Photo-mechanical printing-surfaces.-To make screens such as are used in making printing-surfaces, in which any predetermined rate of change of density in each of the small areas thereof can be obtained, e.g. from transparency c, Fig. 1. to opacity d, a sensitive plate of film associated in half-tone relationship with a ruled or half-tone snreen of 1 : 1 ratio is exposed through a fixed aperture r, Fig. 6, which is geometrically similar to the areas to be produced on the screen, and through a rotating diaphragm p<1>, Figs. 2 and 6, having an opaque area v of such shape, e.g. having circumferential lengths of different radii, as will give the rate of change of density required in the multiple image areas of the aperture r produced on the developed sensitive plate. For a screen to leave black centres, the rotating diaphragm will be opaque with a shaped opening. The screens may be made on very thin celluloid, and may be used between a continuous tone negative and a sensitized plate in printing the plate to obtain a printing-surface.