baber/WOPTO huggingface dataset:
Patent GB-1505300-A (GB)
Title: Composite materials
IPC: B32B25/08
Filed: 1977-02-03
Abstract: 1505300 Laminated insulating and impactresistant plastics material MONSANTO CO 3 Feb 1977 18238/77 Divided out of 1505299 Addition to 1505299 Heading B5N A laminate comprises, in order, layers of (1) thermoplastic material, (2) rubber-modified nitrile polymer containing at least 49 and less than 55 wt. per cent nitrile units and 5-30 wt. per cent synthetic or natural rubber (the nitrile unit content excluding nitrile units in the rubber and being calculated as an equimolar weight of acrylonitrile), and (3) a cellular insulating material, the major amount of whose cells are filled with gaseous halogenated aliphatic or cycloaliphatic hydrocarbon. Insulating panels are made by bonding a further layer, e.g. steel, aluminium, wood, plastics or a laminate of (1) and (2) to the exposed surface of the foam (3) by foaming in situ, using a pre-laminate of (1) and (2), or by laminating with adhesive or melt adhesion. The layers (1) and (2) may be of thickness 50-750 and 0À5-20 mils respectively; may be laminated by heat and pressure, adhesive, extrusion of one or both layers, or application of a solution or dispersion of one material to the other; may be oriented; and may be vacuum-formed to a desired shape. The layers (1) may comprise an impactresistant ABS copolymer (including equivalent materials other than A, B, S), polyvinyl chloride, polycarbonate or polymethyl methacrylate, and the layer (3) may comprise polyurethane, in which the gaseous material is the residue of a blowing agent or is added for insulation. Suitable fluoro- and chlorofluorocarbons are listed. The polymer (2) may be formed by direct polymerization and/or graft polymerization techniques, the nitrile polymer preferably being a copolymer with an olefinic comonomer; preferably the rubber is grafted in one or two stages with nitrile polymer and blended with further nitrile polymer. (The Specification gives detailed information as to materials and amounts.) The laminate may be used for thermally insulating refrigerator and cooling box panels, the panels being shaped to provide shelf supports and corrugated surfaces if desired, and for acoustic insulation and boat hulls.
Patent GB-311134-A (GB)
Title: Improvements in and relating to exhaust manifolds for aircraft engines
IPC: F01N13/06
Filed: 1928-06-23
Abstract: 311,134. Blackburn Aeroplane &. Motor Co., Ltd., and Bumpus, F. A. June 23, 1928. Propelling.-An exhaust system, for reducing the head-resistance of an aircraft and the noise and visibility at night, of the engine exhaust, comprises an annular or U-shaped manifold A with longitudinal manifolds G leading the exhaust gas from longitudinal banks of cylinders, arranged radially about the crank-shaft. The manifold A is arranged within the exterior contour cf the engine and the propeller boss C, and, if annular, it is joined, tangentially by the manifolds G; tail pipes J lead the gas to the atmosphere and if the manifold A is U-shaped, its lower ends merge into - the pipes J.
Patent GB-516356-A (GB)
Title: Improvements in hinge-struts for supporting hinged lids of cabinets and the like
IPC: E05C17/34
Filed: 1938-06-21
Abstract: 516,356. Stays for hinged lids &c. BROOK, E. J. L. June 21, 1938, No. 18354. [Classes 65 (i) and 65 (ii)] A stay for cabinet lids &c, comprises two arms 1, 2 connected by a joint including a positive oneway clutch and a friction brake arranged coaxially about the pivot 9, the arms having free movement during the opening of the lid, and moving against the action of the friction brake during the closing movement. The clutch may consist of two ratchet discs 16, 19, of which 16 is connected to the arm 2 by a tooth 17 engaging a notch 18 on the boss 8 of the arm, while 19 is loose on the pin 9. The friction disc 21 abuts on the disc 19 and on the face 22 of the boss 7 on arm 1, and the three discs are pressed against each other by a spring 15, and the'friction of 21 is adjusted by a unit 23 engaging a threaded part of the pin 9.
Patent GB-1070364-A (GB)
Title: Process for the manufacture of ester imide resins
IPC: C09D5/25
Filed: 1965-05-03
Abstract: Polyesterimide resins are prepared by first reacting trimellitic acid anhydride with a diphenol diester to form the bis-trimellitic acid anhydride ester of the phenol and then reacting the bisester with a primary diamine. Specified diphenol diesters are diesters of resorcinol, hydroquinone or p,p1-dihydroxydiphenyl-propane, -methane, -sulphone or -ketone with C1- 5 monocarboxylic acids.  Specified diamines are p,p1-diaminodiphenyl-ether, -sulphone and -methane.  The reaction with the diamine is preferably effected in two stages, first to the polyesteramide carboxylic acid which is still soluble and may be shaped before final conversion to the polyesterimide.  The reaction may be effected in a solvent, e.g. dimethylformamide, N,N1 - dimethylacetamide or N-methylpyrrolidone.  The solution of the first stage product may be used as a stoving varnish.
Patent GB-638350-A (GB)
Title: A new or improved process for strengthening and/or shaping sheets or strips of wood
IPC: B27K5/06
Filed: 1946-06-20
Abstract: 638,350. Compound sheet materials. JENKINS, D. V.; and UNIREP, Ltd. June 20, 1946, No. 18528. [Class 140] Laminated materials are made by soaking or impregnating thin sheets of wood such as balsa wood in a volatile liquid and, after removal of each sheet from the liquid but whilst it is still wet, applying to one or both of its faces a solid film of a tough and pliable material which is soluble in the liquid, the material being then dried at room or elevated temperature and with or without pressure. The volatile liquid may be acetone and the film may be cellulose acetate, celluloid, or polymethyl methacrylate. While still wet the laminated material may be cut to shape, e.g. with a guillotine, or moulded. When a moulded article is to be formed, wooden inserts or strengthening pieces may be applied to the initial wood sheet by gluing, and when the sheet is to be moulded into tubular form, the adjoining edges may be united by gluing or stapling. A number of wood sheets each with a film on one side may be laminated, while still wet, with the grain crossing. The volatile liquid may contain a dye, the wood or the film may be printed, or a coloured or printed paper sheet soaked in solvent may be applied on top of the film. The product is suitable for making toys such as model aircraft, or boxes.
Patent GB-313850-A (GB)
Title: Machine for evacuating and closing ampoules and the like glass hollow vessels
IPC: B65B7/16
Filed: 1929-06-17
Abstract: 313,850. Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen. June 16, 1928, [Convention date]. Sealing bottles or tubes by fusing.-A machine for evacuating and sealing ampoules, and similar glass bulbs, comprises a support which is rotated intermittently and carries the bulbs in turn to gas burners that constrict the neck of each bulb and then fuse it. The machine comprises a base 1 on which is mounted the fixed member 2 of a rotary valve, the movable member 3 being provided with a number of ports which come into register, as the valve rotates, with ports connected with vacuum pumps. The ports in the rotary member 3, Fig. 1, are connected by tubes 4 with heads 5 which are carried by the flange 6 of a conical support 7. The valve member 3 and the support 7 are secured to a shaft 8 which is rotated intermittently. The ampoules consist of bulbous bodies 10 with tubular necks 9, but the necks have to be reduced in diameter before they are sealed. A filled ampoule is inserted in a head 5 at position A, Fig. 2, a forked member 13 being provided to serve as a guide. When the neck 9 of the ampoule is inserted in the head, a lever 11 is turned to compress a rubber sleeve to make it grip the neck. At position C, the neck 9 is heated by the flames from burners 16, which are carried by vertical tubes 15 secured to rotatable brackets 14. The ampoule is carried between the burners which are then set in rotation, and the glass, as it becomes plastic, is stretched by the weight of the bulb 10. Small tables or discs 23, carried by rods 22, are arranged beneath the bulbs to limit their downward movement. In the next position, D, the bulb is grasped between a fixed jaw 26 and a movable jaw 27. The jaws are attached to a sleeve 25, which is reciprocated vertically by a rotating cam 35 and a spring 36. When the sleeve is near its highest position, the jaw 27 is opened by a stop, and when released, it is closed by a spring 29 and grips the bulb. The descent of the sleeve draws the bulb downwards and causes the softened neck 9 to contract. At the end of the downward movement, another stop opens the jaws and releases the bulb which is carried onwardly by the movement of the member 7. The glass is allowed to cool at position E, and the bulbs are evacuated while passing through positions F. At position G, the constricted neck 9 is heated by burners 41, and in position H the flames from burners 43 fuse the neck 9 and seal the ampoule. During this operation, the bulb 10 rests in an open-sided tube 44 and is supported by projections 52, 53 on a lever 49 which turns about a shaft 50. When the neck 9 is fused, the lever 49 swings to one side and the sealed ampoule falls into a shoot 58.
Patent GB-772354-A (GB)
Title: Improvements in filters for removing fine particles from liquids
Inventor: BELDAM WILLIAM ROBERT
IPC: B01D29/21
Filed: 1951-08-10
Abstract: 772,354. Filters. AUTO-KLEAN STRAINERS, Ltd. Aug. 11, 1952 [Aug. 10, 1951], No. 18902/51. Class 46. A filter cartridge comprises a tubular former 2 supporting an inner filtering element 6 consisting of a rigid element or elements providing a plurality of accurately dimensioned small slots or apertures, and an outer filtering element 14 consisting of a plurality of turns of a sheet of fibrous material formed into a sleeve by attaching the outer turn securely to the underlying turn or turns. The inner element may comprise a wire 6 closely wound in grooves in longitudinal ribs 4, Fig. 1 (not shown) of the former 2, the spaces between adjacent convolutions define the filtering apertures. Alternatively the inner element may comprise wire gauze or a plurality of closely spaced rings or annular discs. The fibrous sheet 14 may be a felt cloth or a filter paper of which three layers are provided with the starting edge stitched to the overlying layer at 15, Fig. 2 (not shown) and the finishing edge stitched to the underlying layer at 16, Fig. 3 (not shown) ; the two lines of stitching are out of alignment. Wire bindings 19, 20 or spring circlips secure the sheet 14 into grooves 17, 18 of end pieces 7, 11 secured to the perforated former 2. The cartridge is detachably mounted in a liquid filter unit comprising a housing 10 with a detachable end plate 25 and inlet and outlet connections 21, 22 respectively for the liquid.
Patent GB-407854-A (GB)
Title: Non-refillable liquid dispensing cans
IPC: G01F11/26
Filed: 1933-07-04
Abstract: 407,854. Cans for delivering measured quantities of liquid. MILLER, G. S., 222, West 83rd Street, New York, U.S.A. July 4, 1933, No. 18926. Convention date, July 30, 1932. [Class 106 (v).] A liquid dispensing can 10 divided into a storage compartment 15 and a dispensing compartment 16, the two being in communication with each other adjacent one side at 18, and the compartment 16 having, at the opposite side, a discharge passage 19, opening at the top of the container, is characterized in that the storage compartment 15 is otherwise sealed in a permanent manner, e.g. by a disc 24 soldered over the filling opening 23 after filling, thus forming an air trap to prevent the possibility of refilling. The compartment 16 may be formed by an inverted cup-shaped piece united with the wall and bottom of the can at 22. The tube 19 may be closed by a screw cap. Approximately equal measured quantities are dispensed at each tilting of the can. Specification 225,462, [Class 106 (v)], is referred to.
Patent GB-1304215-A (GB)
IPC: B61G11/12
Filed: 1970-04-21
Abstract: 1304215 Hydraulic shock absorbing buffer ALFRED TEVES GmbH 21 April 1970 [29 April 19691 18971/70 Heading B7T [Also in Division F2] In an hydraulic shock-absorber (see Division F2), particularly for cushioning impacts between railroad cars, a cylinder 3 has a tube 4 mounted therein and slidable within a hollow piston-rod 1 and restricted passageways are provided through which hydraulic fluid can be forced to flow by the piston in the cylinder 3, the first passageway 7 being between chambers 20 and 22 and the second passageway 17 being between chamber 20 and the inside of tube 4 and including a valve 16 resiliently mounted so as to open when deceleration of a vehicle on which the shock absorber is mounted parallel to the direction of travel exceeds a predetermined value. The variable volume chambers 20 and 22 on either side of piston disc 6, which is attached to piston-rod 1 and slidable with respect to cylinder 3, have a combined constant volume and a piston disc 10 attached to cylinder 3 and slidable with respect to piston-rod 1 has a bore 11 leading to elastic bellows 12. A spring- loaded valve 8 allows relatively free flow from chamber 22 to chamber 20 when the shockabsorber is resuming its normal extended position.
Patent GB-1530488-A (GB)
Title: Apparatus for testing zoom lenses
IPC: G01M11/02
Filed: 1977-04-29
Abstract: 1530488 Testing zoom lens W VINTEN Ltd 29 April 1977 [8 May 1976] 19044/76 Heading G2J In testing T.M.F. of a zoom lens, the test pattern is passed through the lens and then passed back through the lens before inspection. By this means the problems associated with varying effective focal lengths are solved.
Patent GB-767480-A (GB)
Title: Machine for the production of fluid-filled thermoplastic containers
IPC: B65B9/12
Filed: 1955-07-01
Abstract: 767,480. Packaging-machines. RADO, L. July 1, 1955, No. 19114/55. Addition to 599,174. Class 94(1). In a machine for carrying out the process described and claimed in the parent Specification in which a length of thermoplastic tubing filled with liquid or paste is fed step-by-step between pneumatically-operated pressing and welding jaws comprising electrodes forming part of a high frequency electric circuit controlled by an operating switch, a motor 12 drives through gearing 13 and 14 a rotary cam 16 which operates through a lever 18 and rod 19, a lever 20 actuating a valve (not shown) controlling air conduits 21 leading to the rams operating the jaws, and the electric circuit includes a microswitch operated in synchronism with the jaws.
Patent GB-1109236-A (GB)
Title: Improvements in or relating to toy and model vehicles
Inventor: RIX FREDERICK NOEL
IPC: A63H17/26
Filed: 1965-05-06
Abstract: 1,109,236. Resilient suspension for toy vehicles. LESNEY PRODUCTS & CO. Ltd. 21 April, 1966 [6 May, 1965], No. 19241/65. Heading A6S. Toy or model vehicles having at least one ground wheel axle, 11, 12 as shown, mounted in a chassis or base such that vertical movement, between limits is allowable, has a body or major body portion 4, formed of synthetic plastics material separately formed from but fastened to the chassis e.g. at 16 and 19 and integrally including at least one resilient tongue 14, 15 arranged to bear against the axle in such a way as to urge it towards the -lower limit. One tongue, 14, extending forwards (towards the left) also includes integrally a fastening member 16 which is a cylinder and is locked into place by projections in the chassis and under body member. The other tongue (15), not including a fastening member extends to and bears down on axle 12 which is urged towards the bottom of slot 10.
Patent GB-169826-A (GB)
Title: Improvements in inking and wiping mechanism for plate printing presses
IPC: B41F9/14
Filed: 1920-07-07
Abstract: 169,826. Solomon, R., and Shryock, G. H. July 7, 1920. Inking-apparatus. - Inking and wiping mechanism for plate printing- presses comprises a frame 2 carrying a recessed table 3, a support 5 sliding on the table and carrying a plate 6, an ink-trough 7 and roller 8 supplying ink to an inking roller 9, an adjustable wiping-roller 12 in the path of movement of the plate, a scraper 23 bearing against the wiping-roller 12 and secured to one edge of a box 24 for receiving the removed ink, springs 29 engaging the box 24 and yieldingly pressing the scraper against the wiping-roller, and a flexible wiping- band 51 wound on drums adapted for step-by-step movement. The roller 8 is positively driven and drives the inking-roller 9 frictionally. The wiping-roller 12 is supported by slidable bearing-boxes 17, Fig. 1, adjusted by swivelled screws 19 and pressed downwards by springs 13 adjustable in tension by screws 22. The box 24 slides in guides 33, Fig. 2, and may be released for removal by swinging the brackets 31. carrying screws 30 against which the springs 29 abut, about pivots 32. The drums carrying the wiping-band 51 are mounted on spindles 50, Fig. 3, supported in the halves of bearing-boxes connected by links and screws, and are given their step-by-step rotation by a reciprocating rod 61 which oscillates a rod 59 fixed to a pivoted arm 56. This arm is connected by a cross-bar 54 to levers 52, which are pivoted to the spindles 50 and carry pawls engaging ratchets 62 on the drums. The band 51 passes under a felt pad 44 fixed to springs 45 secured to blocks 45<1> slidable in guides 42, and adjustable by swivelled screws 45a. The whole of the wiping-band mechanism is rotated by revolving shafts 36 fixed to discs provided with diametral undercut slots 39 engaging the conical heads of bolts 40 secured to the lower flanges 41 of the guides 42.
Patent GB-802373-A (GB)
Title: Improvements in or relating to pulse radar systems
Inventor: RODGERS JOHN
IPC: G01S13/18
Filed: 1955-07-05
Abstract: 802,373. Radar. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 9, 1956 [July 5, 1955], No. 19398/55. Drawings to Specification. Class 40 (7). In a height-determining radar system a radio beam, which is emitted by a vertical linear array of slot aerials, is inclined at an angle, in the verticle plane, in dependence upon the frequency of the energy fed to the aerial. The latter takes the form of a given number of pulses, each having a specific frequency in a given sequence to produce the required angular movement of the beam. The pulses may be applied to the aerial either sequentially or simultaneously. The pulses after reflection from the target are received at the same aerial and are fed to narrow band waveguide filters each one of which is tuned to pass one of the transmitted frequencies. The output from each filter is applied as a brightening pulse to the grid of an associated C.R.T. and a time-base is applied to the X-plates to present the targets at various ranges, at the elevation corresponding to the C.R.T., as a linear row of dots. By turning each C.R.T. so as to incline the time base axis at an angle to the horizontal equal to the corresponding beam elevation the rectangular co-ordinates of each point on the line correspond respectively to the target range and height. In a modification, small projection type C.R.T.'s are used and are viewed simultaneously through a lens system, the target lines for all C.R.T.'s being superimposed on a single screen. To obtain azimuth information, a P.P.I. C.R.T. is employed having a radial time-base rotated in synchronism with the rotation of the aerial array about the vertical axis, brightening pulses being applied to the C.R.T. from the filters.
Patent GB-1094486-A (GB)
Title: Mixing system
IPC: B01F3/08
Filed: 1965-05-07
Abstract: 1,094,486. Mixing synthetic resin components. SONIC ENGINEERING CORPORATION. May 7, 1965 [May 8, 1964; July 8, 1964], No. 19466/65. Heading B1C. In a mixer primarily for viscous epoxy resin materials one component is introduced into the mixing chamber 14 through a passage 46 and an axial clearance 44 surrounding the shaft 22, while the other component enters through passages 54, 50 and 56, 52. The materials are mixed by a rotatable disc-like member 20 having grooves as at 24, 26 on at least one face; the grooves on each face are preferably parallel and those on one face at right-angles to those on the other (see Fig. 8, not shown). The depth of the grooves is preferably 0.020 to 0.025 inches and the ridges between them have a like clearance with the walls 287,288 of the mixing chamber. The grooves may be of U or other cross-section (see Fig. 9, not shown); in modifications they may be of curved or hour-glass shape, or may be formed in the housing instead of in the disc; the edges of the disc may also be grooved. The mixture leaves the chamber 14 by an outlet 60 closable by a valve member 66 carried on a flexible diaphragm 62 and actuated by compressed air admitted through a passage 76 in the shaft 22. The apparatus can be purged by solvent admitted under air pressure through all the component inlet passages, and followed by air to dry the apparatus, see Fig. 6 (not shown). The mixing chamber is made in two parts, having flanges 238, 240 secured by a toggle clamp 18 (see also Fig. 7, not shown). The mixer shaft and component pumps may be driven by a common motor to enable the apparatus to be used intermittantly.
Patent GB-1099265-A (GB)
Title: Improvements relating to the polymerisation of caprolactam
Inventor: LINCOLN JAMES
IPC: C08G69/20
Filed: 1964-05-11
Abstract: Caprolactam is polymerized by heating it in the presence of an alkaline catalyst and, as an activator, the reaction product of a polyol and a polyisocyanate, the polyisocyanate being used in a molar excess over the polyol.  The polyol may be a polyglycol especially polypropylene glycol, but ethylene glycol, propylene glycol, glycerol and pentaerythritol may also be used.  Suitable polyisocyanates are 2,4-tolylene diisocyanate, 4,41-diphenylmethane diisocyanate and hexamethylene diisocyanate.  If desired, the activator may be prepared in the presence of all or part of the caprolactam, the rest of the caprolactam, if any, together with the alkaline catalyst then being added to the reaction product.  Sodium metal is used as catalyst in the examples.
Patent GB-1509730-A (GB)
Title: Method and apparatus for electrically biasing developing electrode of electrophotographic device
IPC: G03G15/06
Filed: 1975-05-09
Abstract: 1509730 Developing electrostatic images RICOH CO Ltd 9 May 1975 [10 May 1974 14 June 1974] 19597/75 Heading B2L [Also in Division B6] The bias applied to developing electrode 24 is controlled in accordance with the potential sensed on a portion of photoconductive drum 11 by auxiliary electrode 25. The electrode 25 is made up of a plurality of sections, which may be arranged in a line along the drum surface or staggered so that they cannot all read a single darkline. The lowest potential read by the sections is used to control the bias, on the assumption that it represents a white or background area. Alternatively a card of known properties may be exposed with the original to be copied, so that its image falls outside the area of the image to be developed and actuates the auxiliary electrode. The developing electrode 24 may control the application of either liquid or dry developer.
Patent GB-627915-A (GB)
Title: Improvements in or relating to ships' fenders
IPC: E02B3/26
Filed: 1947-07-22
Abstract: 627,915. Fenders. CHILD, J. B. July 22, 1947, No. 19629. [Class 113 (i)] A ship's fender comprises a spar having mounted thereon hollow rings 3 of resilient material, each containing buoyant material 4 sufficient to render the fender buoyant as a whole. The spar may be made of wood 1 with reinforcing battens 2, or may be made in the form of a water-tight metal cylinder or from a plurality of such cylinders placed end to end. The rings 3 are retained on the spar by collars 5. Each end of the spar has a cap 9 with a bollard-like head 10 on which is mounted a pear-shaped slinging ring 11.