baber/WOPTO huggingface dataset:
Patent GB-993092-A (GB)
Title: Heat sealing of thermoplastic films
IPC: B29C65/00
Filed: 1963-09-04
Abstract: 993,092. Seaming non-metallic sheet material. CANADIAN INDUSTRIES Ltd. Sept. 4, 1963 [Sept. 6, 1962], No. 34960/63. Heading B5K. Thermoplastic films are sealed together by bringing together layers 1, 1a of film of the same thermoplastic in overlapping and heat sealable contact; applying a molten strip or filament 5 of thermoplastic material on to the outside surface of the top layer along the overlap area, the strip 5 having a sufficient heat content to fuse the interfaces of the layers 1, 1a along the application zone S of the strip 5; maintaining the layers 1, la in non-slip contact with each other during the fusing operation; and cooling the strip 5 after fusion has been effected. As shown, the overlapping layers 1, 1a of polythene film are unwound from a roll 2 on to a driven conveyer belt 3. A polypropylene filament 5 heated to a temperature of 600‹ F. is directly extruded from an extruder 6 on to the layer 1 and fuses the layers 1, 1a along the zone S of deposition. Preferably the layers 1, 1 are conveyed faster than the filament extrusion speed so that the filament 5 is stretched as it is deposited on the layer 1. Nozzles 7 supply cooled compressed air to rapidly cool the filament 5 and then the assembly of the layers 1, 1a and the filament 5 pass around idler rolls 9 in a water bath 8 maintained at 60‹ F. A rubber coated steel roll 10 may be provided to press the layers 1, 1a together in the cooling area. The sealed film passes around idler rolls 11 and is wound on a roll 12. Where practicable, the cooled filament 5 may be stripped from the film, wound on a roll 13 and returned to the extruder for re-use. The nozzles 7 may be replaced by a chilled metal roll. Solid or hollow strips or filaments 5 of circular, elliptical, flat or triangular cross-section may be provided and the thermoplastic material of the strip or filaments may be the same as or different from the film layers. Specified materials are polythene, polypropylene, nylon, polyethylene terephthalate and polyvinyl chloride. More than two layers may be scaled by this method and the invention may be applied to packages, tubes or sheets.
Patent GB-452826-A (GB)
Title: An improved method of producing accurately balanced sporting and working implements and tools
IPC: A63B59/00
Filed: 1935-12-17
Abstract: 452,826. Testing balance of tools and sports implements. PORTUS, P. J., 402, Latrobe Street, Melbourne, Australia. Dec. 17, 1935, No. 35008. [Class 97 (iii)] A tool or sports implement in the rough state is finished by a series of planing or dressing operations performed with reference to intervening weighings, taken with the article resting on a lever type weighing apparatus between the fulcrum b and scale d with one end a<1> adjacent the fulcrum, Fig. 1, with the other end a<2> adjacent the fulcrum, Fig. 2, and also with the article resting with a predetermined point a<3> along its length adjacent the fulcrum, Fig. 3, the finishing operations proceeding until all the scale readings are in agreement with a set standard. In a modification, the lever a is supported by spring balances c at both ends and, when the article has been laid thereon, movable supports may be brought into position to act as fulcrums at various points along its length. In an article such as a tennis racquet part of which is laminated, the laminations are placed on the weighing lever to find the distribution of weight therein and the laminations are assembled so that this weight is evenly distributed over the laminated part.
Patent GB-1477710-A (GB)
Title: Apparatus for focusing laser beams
IPC: B23K26/00
Filed: 1974-08-08
Abstract: 1477710 Reflecting objectives CATERPILLAR TRACTOR CO 8 Aug 1974 [20 Aug 1973] 35038/74 Heading G2J [Also in Division B3]  In a laser beam directing and focusing apparatus, for use in welding or cutting, wherein an annular collimated laser beam entering the apparatus through a flat window 106 is, by way of plane, concave and convex mirror surfaces 28, 64, 40,  directed and focused through a nozzle 104 on to a suitably positioned workpiece, gas under pressure is supplied through ports 82 into the interior of the apparatus both to (a) exit from the nozzle 104 to strike the workpiece and assist beam absorption and (b) cool said mirror surfaces. The mirror surfaces 28, 64, 40 are formed on mirror assemblies 22, 56, 32 having cavities 112, 128, 122 through which coolant fluid under pressure is passed, via ducts 114, 116, (130), (132), 124, 126 for further mirror cooling. The flat window 106 is of a suitable salt, halide or periodic group II or IV compound such as cadmium telluride.
Patent GB-175148-A (GB)
Title: Improvements in and relating to coin controlled locks
IPC: G07F17/14
Filed: 1920-12-13
Abstract: 175,148. Brown, F. C. Dec. 13, 1920. Caretakers; fastenings for doors.-The door of a locker &c. is secured by a lock which can only be opened by a token obtained from the lock by insertion of a coin. Coin action, mechanical-connection; casings; coin-discharging mechanism. - The lock has a slot 32 to receive the coin and a slot 48 to receive the token. The sliding bolt 53 rests on a slide 59, and below these, are a pair of superposed slides 16, 17, the bolt and slides being retained in their normal position by spring plungers 54. The cover-plate 5, Fig. 5, carries internally, a block 10 having a part 14 deflected towards the token discharging slot 7. The token 23 normally rests in a recess 22 in the slide 16 and is supported by the block 10. When a coin is inserted into the slot 32 it drops down the coin-shoot 31 into a recess 24 in the slide 16 where it is supported by the concave base 39 of a tongue 26 cn the lower slide 17, the upper part of the tongue sliding in a narrowed prolongation 25 of the slot 22. In this position, the coin engages a shoulder of the recess 22 in the slide 16 and the tongue 26 on the slide 17, forming a mechanical connection between the two. On turning the handle 42, the left-hand arm 41 draws the slide 17 to the left carrying with it the upper slide 16, which slides the token along the block until it engages the deflected part 14 which causes it to leave the recess 22 in the slide and drop through the bevelled recess 11 in the block, out of the hole 7 into the receiving cup 9. When the shoulder 38 on the slide 16 has passed the end of the dog 35, this shoots up under the action of its spring 37 and retains the slide in its drawn-back position. When the handle is released the slide 17 is restored to its initial position by its spring, withdrawing the supporting face 29 of the tongue from under the coin, which then falls into the receptacle below. The slide 17 carries with it the lefthand arm of the handle, bringing the right-hand arm 41a of the handle into engagement with the projection 44 of the dog 35, releasing it from its engagement with the slide-16, which then shoots back to its normal position. To withdraw the bolt 53, the delivered token is inserted in the slot 48 which has corrugations corresponding to ribs on the token, when it falls into a recess 52 in the bolt, and rests on the concave face 71 of a tongue 69 secured to the slide 59, to form a mechanical connection between the bolt and the slide. The handle 63 is then turned causing the slide 59 to withdraw the bolt. The token is discharged from the recess 52 in the bolt by means similar to those for discharging the coin from slide 16. When discharged, the token drops down a shoot 30 on the inner face of the coverplate 5 into its slot 22 in the slide 16 where it rests on the block 10 in position for being delivered to re-open the door by insertion of a second coin, the door being locked by slamming.
Patent GB-1459479-A (GB)
Title: Carbonation of drinks
IPC: A23L2/40
Filed: 1974-08-09
Abstract: 1459479 Carbonating drinks A TODD [trading as BREWICON] 23 Oct 1975 [9 Aug 1974] 35278/74 Heading B1C A pill for use in carbonating drinks and containing constituents which react together in water to release carbon dioxide has a water soluble coating for delaying the reaction between the gas-generating constituents when the pill is introduced into a drink. The constituents may comprise sodium bicrabonate and citric acid or tartaric acid and the coating may be a hard sugar, edible plastics material or a preparation of hydroxypropyl methyl cellulose and glycerine. The pill may itself contain a flavouring constituent.
Patent GB-1415763-A (GB)
Title: Device for use in the manufacture of aerosol dispensing containers
IPC: B05B9/04
Filed: 1973-07-25
Abstract: 1415763 Device in the manufacture of aerosol containers COSTER TECNOLOGIE SPECIALI SpA 25 July 1973 [30 Sept 1972] 35394/73 Heading B8T [Also in Division F2] A device used in the filling and closuring of aerosol containers 23 comprises a rigid hollow body 1 having oppositely placed apertures 2 and 3 and a movable element 4, the element having a duct 15 and a bore 13 such that when the element assumes a first position, one end of the duct communicates with aperture 3 and the other end with a conduit 16, thereby allowing fluid to be delivered through the conduit into the container and when it assumes a second position the bore 13 communicates with the apertures 2, 3 whereby a tubular body 29 projects through the bore facilitating the location of a valve seat 24 along with its tube 25 over the container neck. The element may be spherical as shown or it can be in the shape of a cylinder. The first position is assumed when a doubleacting piston 9 is given a downward movement as a result of compressed air being passed through an opening 11 while gas is vented through an opening 12. The second position is assumed when compressed air is passed through 12 while gas is vented through 11.
Patent GB-482003-A (GB)
Title: Improvements relating to spraying apparatus
IPC: B05B7/12
Filed: 1936-12-24
Abstract: 482,003. Spray-producers. BURGESS, E., and AEROGRAPH CO., Ltd. Dec. 24, 1936, No. 35432. [Class 69 (iii)] In a paint &c. sprayer of the kind in which a needle valve controlling the liquid outlet is operated by compressed air acting on a member so connected to the valve stem that air has access to the latter, leakage is prevented along the valve stem by packing which is accessible for adjustment. The stem Y of the needle valve which is retracted by a piston X in a cylinder V in axial alignment with the nozzle passes through stuffing boxes d, d<1> provided with glands e, e<1> which are accessible from outside the apparatus. Liquid is admitted through a passage D and compressed air through a passage P leading to an annular space Q connected by a passage R to the spray head, and through a passage U to the cylinder V. The stem Y passes loosely through the piston and carries an abutment q against which the piston engages. The piston X is acted on by a spring n and a spring r engages the abutment q. A tubular screw p through which the stem Y passes serves as an adjustable stop to limit the travel of the valve. In a modification the valve stem is rigidly attached to a diaphragm acted on by compressed air. Separate air supplies may be provided for actuating the valve and atomizing the liquid.
Patent GB-366184-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K3/28
Filed: 1930-11-25
Abstract: 366,184. Windings for dynamo-electric machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Alger, P. L. ; 1758, Wendell Avenue, Schenectady, New York, U.S.A.) Nov. 25, 1930, No. 35479. Convention date, Nov. 27, 1929. [Class 35.] A winding for the slotted armature of an alternating-current machine comprises two or more, say n electrically independent circuits of similar phase, having all coils of equal pitch and having in each layer coil sides of each circuit of each phase grouped in adjacent slots over approximately <1>/nth part of each belt allotted in that layer to the phase. The separate windings may be designed for the same or for different voltages. The invention is particularly applicable to alternators in which the independent windings feed separate bus-bars as described in Specification 311,344, [Class 38 (iv), Electric supply and transmission systems, &c.]. In order to preserve magnetic and mechanical balance when the circuits are unequally loaded, the order of succession of the part phase belts is reversed at intervals around the periphery. The Figure shows a two-layer lap winding for a four pole, two circuit, threephase machine having seventy-two slots, the coil pitch being five-sixths. The three phases are shown axially spaced, the phases of one circuit shown in heavy lines being designated A, B, C and those of the other circuit shown in light lines being designated a, b, c. The order of succession of the coil sides of the two circuits is reversed every two phase belts in each layer so that as few slots as possible carry conductors of different circuits, and this sequence is adopted for windings in which the coil pitch is between three-quarters and eleven-twelfths In the case of windings having coils of less than three-quarter pitch, the order of succession of the coil sides is reversed every phase belt around the periphery. The Specification describes such a two layer, four pole, three-phase seventy-two slot winding in which the pitch is two-thirds. Specification 311,341, [Class 35, Dynamo-electric generators &c.], also is referred to.
Patent GB-411875-A (GB)
Title: Improvements in or relating to aircraft undercarriages
IPC: B64C25/10
Filed: 1932-12-15
Abstract: 411,875. Retractable undercarriages. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G., Filton House, Bristol. Dec. 15, 1932, No. 35580. [Class 4.] The wheels or floats of an aeroplane are raised and lowered by mechanism strong enough to be actuated while the machine is on the ground in order that the machine may be lowered towards the ground or water level for loading and raised for taking off. The raising may be effected during taxying by mechanism driven from the wheels. A wheel 14 is connected to the machine by a link 21 and a shock-absorbing strut 17 which is connected to a nut 18 on a screwed shaft 19 driven by worm gear 22, 23 from an electromotor or by hand. When in the raised position the wheel still projects slightly from a streamlined housing. Alternatively a gear on the wheel may engage a gear having a crank pin for working a pump which supplies compressed air to the oleo leg during taxying. Manually operated relief valves are provided for lowering the machine to the ground, and manually actuated mechanism may be provided for raising the undercarriage during flight. Oil instead of compressed air may be used and worm gear driven by the wheels may be used for raising the machine prior to taking off. Reference has been directed by the Comptroller to U.S.A. Specification 1,830,901.
Patent GB-508459-A (GB)
Title: A lamp construction comprising a reflector
IPC: F21V11/00
Filed: 1938-12-08
Abstract: 508,459. Lamp screens. HOLLAND ELECTRO N.V., and SCHNEIDER, F. L. G. Dec. 8, 1938, No. 35790. [Classes 75 (ii) and 75 (iv)] A number of horizontal or slightly inclined screens 11 .. 14 are arranged in the manner of louvres below the lower edge of a lamp reflector 6 and outside the cone of light rays in such a manner that for an observer who is positioned at a distance outside the cone of light rays, the upper portion of the screens will be invisible. The radial dimensions of the screens are such that the reflector opening will be visible between the screens only to an observer positioned at a great distance. The outer edges of the screens may be connected by an outer casing 8. The screens need not surround the whole of the reflector opening. Fig. 7 shows a modification in which each screen comprises two inclined walls such as 13<1>, 13<11> connected at their inner edges, the screens being connected at their outer edges.
Patent GB-1161484-A (GB)
Title: Toilet Preparation
Inventor: GEISTLICH PETER
IPC: A01N25/06
Filed: 1965-08-20
Abstract: 1,161,484. Aerosol foam compositions. MEDILINE A.G. 15 Aug., 1966 [20 Aug., 1965], No. 35832/65. Heading A5B. [Also in Division C4] . Aerosol foam compositions for use in feminine hygiene comprise water, an aerosol propellant, a bactericidal substance, an emollient substance comprising a synthetic fat or oil or a natural fiat or oil of animal or vegetable origin and a surface-active material as foamforming agent, said compositions being substantially non-irritant to the human skin and mucous membrane, Many examples of each class of ingredient are given. '
Patent GB-1430256-A (GB)
Title: Watchmans time recorder
IPC: G07C1/20
Filed: 1973-07-27
Abstract: 1430256 Watchmen's time recorders SIMPLEX TIME RECORDER CO 27 July 1973 [27 July 1972] 35848/73 Heading G4T A watchman's time recorder includes clockdriven time printing wheels 18, a print hammer 20 actuated upon insertion into the recorder of a location-identifying key, and a strip 12 upon which the time- and location-identifying data is recorded, the strip 12 being such that it discolours under the pressure of the type face (which may have sharpened working edges) on the wheels 18 and being fed by a roller 16 having a resilient friction-covering designed to impart no discoloration-producing pressure to the strip.
Patent GB-1082844-A (GB)
Title: Reinforced latex
Inventor: RYE GROVER WILFORD
IPC: C08J3/22
Filed: 1964-09-02
Abstract: Natural or synthetic rubber latex is reinforced by adding a reinforcing agent to a water-soluble phenolic resin carrier compatible with both the reinforcing agent and the rubber component of the latex to form a pre-blend thereof, and adding the pre-blend, optionally after aging, to the rubber latex.  In the examples, carbon black is added to an aqueous sodium hydroxide solution of a resorcinol/formaldehyde resin and after aging this pre-blend is added to a styrene/butadiene copolymer latex, the composition so formed also being aged.  The aged latex composition is finally compounded with sulphur, zinc oxide, stearic acid, diphenyl guanidine and benzothiazyl disulphide, and is heat cured under pressure.  Other rubbers specified are natural rubber and vinylpyridine/diene rubber copolymers. The reinforced latex may be used, for making gloves by dip coating a form, or for coating fabrics (see Division B2).ALSO:A composition for coating fabrics comprises a natural or synthetic rubber latex reinforced by adding a reinforcing agent to a water soluble phenolic resin carrier compatible with both the reinforcing agent and the rubber component of the latex to form a pre-blend thereof, and adding the pre-blend, optionally after ageing, to the rubber latex.  In the examples, carbon black is added to an aqueous sodium hydroxide solution of a resorcinol/formaldehyde resin and after ageing this pre-blend is added to a styrene/butadiene copolymer latex, the composition so formed also being aged.  The aged latex composition is finally compounded with sulphur, zinc oxide, stearic acid, diphenyl guanidine and benzothiazyl disulphide, and is heat cured under pressure.  Other rubbers specified are natural rubber and vinylpyridine/diene rubber copolymers.  The reinforced latex may be used for making gloves by dipping a form into it, for coating fabrics, and for building up a tyre tread on a pneumatic tyre carcass of fabric plies by rotation of the carcass in the reinforced latex and drying each layer of latex as it is deposited thereon until the desired thickness of tread is produced and then curing in a mould.
Patent GB-892199-A (GB)
Title: Dispensing and vending machine
IPC: G07F7/06
Filed: 1960-10-20
Abstract: 892,199. Coin-freed vending apparatus. HOFFMAN, M. K. Oct. 20, 1960 [Oct. 22, 1959; Sept. 1, 1960], No. 35945/60. Class 27. A machine for vending bottled milk has a number of separate conveyers 22 and each conveyer is movable in steps to bring a bottle under an associated opening covered by a door 108; the door can be opened after a coin has been inserted but to release the conveyer for movement by a motor or an external handle an empty bottle has to be inserted in the vacant compartment of the conveyer and be gauged for size. An inserted coin passes through testing means and, if accepted is delivered to a slot 64 and couples a disc 62 on a shaft 60 connected to the external handle to a disc 66 having a cam projection 124. Initial rotation of the shaft 60, until a rod 76 connected to the handle is stopped by a catch 80, causes the cam 124 to engage a stop 122 on a rod 120 linked to an arm 112 engaging a door locking pin 100 and the pin is withdrawn. The door is raised and, after an empty bottle has been placed in the empty conveyer sleeve 42 then in register with the opening, is closed again. The bore of the sleeve is tapered and a bottle of the correct diameter will stand at the correct height to displace a gauging lever 126 so that a pin 134 and rod 138 are displaced and rotate a shaft 94. Rotation of the shaft 94 lowers a weighted rod 86 so that an abutment 84 is brought into the path of a cam face 82 on the disc 66 and movement of the rod 86 withdraws the handle locking catch 80. Full movement of the handle then causes forward displacement of a crosshead 168 linked to the shaft 60. The crosshead carries a cam face 182 which tilts a lever 176 so a locking pawl 154 is withdrawn from the toothed periphery of a wheel 150 and a push rod 160 ball jointed at 166 to the crosshead and engaging in one of four holes 158 in the wheel 150 rotates the wheel. The wheel is mounted on the driving shaft 37 of the conveyer which is thus rotated to bring a full bottle into place for removal through the opening, the door 108 having been released when the locking pin 100 is withdrawn by the engagement of the cam 125 with a stop 122a. A rod or cable 185 may be provided to permit manual release of the pawl 154 for loading of the conveyer.
Patent GB-1511869-A (GB)
Title: Method for producing unsaturated esters
IPC: C07C69/145
Filed: 1975-09-03
Abstract: 1511869 Porous silica article BAYER AG 3 Sept 1975 [10 Sept 1974] 36339/75 Heading C1A [Also in Divisions B1 and C2] A shaped silica article for a catalyst support has a pore volume, in the pore radius range 20-120 , of 0À40 to 1À20 ml./g., and may be made by mixing a silica gel powder having this property with water or an inorganic sol., shaping, drying if necessary, and heating at 100-1000 C.
Patent GB-1279687-A (GB)
Title: Improvements in or relating to printing, coating and duplicating
IPC: G03G13/26
Filed: 1969-07-18
Abstract: 1279687 Printing process MINNESOTA MINING & MFG CO 18 July 1969 [19 July 1968] 36390/69 Heading B6C A method of printing is characterized by the use of a non-solvent based thermoplastic ink and a silicone elastomer used as an offset surface or the image areas of a printing plate. Through the combination of such an ink and such a surface the entire ink layer is transferred at every printing operation from the surface to a receptor sheet. The image may be produced by electrostatic or electromagnetic means in which case the ink comprises a powder containing an epoxy resin, magnetite and carbon black. In a described printing process a master surface of a pre-imaged silicone elastomer surfaced plate 28, Fig. 5, accepts transfer medium 3 from a supply roller 5 in the imaged areas 23. The medium 3 is then transferred successively to offset silicone elastomer surfaces 33 and 35 for eventual transfer to a web 36 where heat is applied for bonding purposes. To obtain non-splitting 100% transfer between surfaces the temperature of the medium 3 and the time of contact must be carefully controlled. In a further process the offset surface comprises a silicone elastomer coated endless belt 43, Fig. 6, which transfers the images received from a master cylinder 41 to a web 53 under pressure and heat, a heater 47 being provided for this purpose. The images may be stencilled on the master cylinder and suitable thermoplastic transfer compositions may comprise magnetite and polystyrene, nickel zinc ferrite and polystyrene or epoxy resin and a colouring agent. Fig. 4 shows an aluminium sheet 15 bearing a light-sensitive layer 19, an anchoring layer 21 and a silicone elastomer layer 23 which has been imaged by photo means.