baber/WOPTO huggingface dataset:
Patent GB-1256596-A (GB)
IPC: B31F1/28
Filed: 1969-06-25
Abstract: 1,256,596. Waterproof corrugated paper. SOC. D'ETUDES ET DE MATERIEL POUR LE FABRICATION ET LE FACONNAGE DU CARTON ONDULE-MARTIN. 25 June, 1969 [25 June, 1968], No. 32135/69. Heading B5N. Waterproof corrugated paper is produced by applying adhesive to a band of corrugated paper and hot gluing on at least one of the faces of the adhesive bearing band of corrugated paper, a band of cover paper coated on its outer face with a waterproof protective material, e.g. paraffin, microcrystalline wax, polyethylene or polyvinylidene chloride, having a sticky softening point lower than the temperature to which the cover paper is subjected in the course of manufacture, the hot gluing comprising passing the band of cover paper over a heating surface, e.g. a heated cylinder or plate while the adhesivebearing band of corrugated paper is in contact with the band of cover paper, the latter being heated adequately by the heating surface to effect adhesion, there being interposed between the outer face of the cover paper and the heating surface, a thin band of thermal insulation material which is indifferent to the temperature to which the heating surface is brought and has a sufficiently low thermal conductivity and a surface state such that the adhesion by at least partial fusion of the waterproof protective material to the material is made impossible, while permitting adequate heating of the cover paper, the band of thermal insulation material circulating at the same time and the same speed as the cover paper. The band of thermal insulation material may be of paper glazed on its face coming into contact with the coating on the cover paper, paper coated or impregnated with a silicone, glass fibre fabric or other textile material coated or impregnated with a silicone or polytetrafluoro ethylene, and may be cooled before it comes into contact with the heating surface by depositing thereon a thin film of water by means of a wetting cylinder, by spraying thereon cold water, by blowing thereon cold air or by passage over a cooled cylinder. A starch-based adhesive may be used. In Fig. 1, paper band 2 is fed from reel 1 over pre-heating cylinder 3 heated by the circulation of steam to about 100‹ C., between fluting cylinders 4 and 5, the fluting cylinder 5 co-operating with gluing roller 6 fed with glue from tank 7 so that glue is applied to the top of the flutes of the corrugated sheet, and the cover paper band 8 coated with waterproof protective material is fed from reel 9 and applied against the corrugated sheet after glue has been applied thereto, with the aid of smoothing press cylinder 10 heated by internal circulation of steam to 150-160‹ C., the single faced corrugated paper produced being carried by conveyer 11 and passed over bridge 12. Between sheet 8 and cylinder 10 is interposed a continuous band 13 of silicone treated paper which passes around the cylinder 10 and free roller 14 to prevent softening of the coating on cover paper 8. After passage over bridge 12 a second cover paper may be glued to the other side of the single-faced corrugated paper.
Patent GB-1264421-A (GB)
IPC: H03F3/72
Filed: 1969-01-02
Abstract: 1,264,421. Transistor switching circuits. MICRO CONSULTANTS Ltd. 2 Jan., 1970 [2 Jan., 1969], No. 323/69. Heading H3T. [Also in Division G3] To reduce the effective resistance of a threeterminal switching device 6 when in its "on" mode it is connected in a circuit comprising a differential amplifier 3 with a feedback loop 5 between the output terminal 9 of the device and an inverting input terminal 2 of the amplifier, so that the output signal to a load 10 is continuously substantially equal to an analogue input signal applied to the non-inverting terminal 1 of the amplifier. In Fig. 2 (not shown), a single amplifier is connectible to either of two loads through respective switching devices, and an extra switching device is provided in each of the respective feedback loops to isolate them when its associated main switching device is off. The devices may be field effect transistors, bipolar transistors or M.O.S.T.'s, and the complete circuit constructed in monolithic integrated form.
Patent GB-1266954-A (GB)
IPC: G03G15/10
Filed: 1969-04-23
Abstract: 1,266,954. Electro-photographic apparatus. W. ZINDLER [trading as LUMOPRINT ZINDLER K. G.1. April 23, 1969 [April 26, 1968], No.20799/69. Heading G2H. Developer, e.g. in a xerographic apparatus, is replenished from a storage tank 91, Fig. 10, having a discharge valve 101, 102 by the rotation of a switching cam 55, Fig. 5, fixed to a copy paper feed roller 12 operating a plunger 39. The upper end 52 of the plunger engages in a threaded spindle 25 which rotates with roller 12, and the plunger pivots about two pivots 36, 37 extending at right angles to the axis of the spindle 25. After each actuation of the plunger, the plunger pivots to abut an adjustable stop 58 and then re-engages the threaded spindle. The position of stop 58 is adjusted by manual rotation of a shaft 23 which carries a disc 61 having a worn thread 62 for engaging a pin 60 attached to a sliding arm 59 carrying the stop 58, and also carries a discshaped adjusting device 64 which has a profiled surface containing locking recesses 72 in which one end 69 of a lever engages, the other end 67 engaging an abutment 68 carried by the plunger,. 39. Upon rotation of shaft 23, the plunger is moved out of engagement with the spindle 25 and the stop 58 moved so that upon release of the plunger its  end 52 engages a different one of the threads of  spindle 25. Each operation of the delivery valve may thus take place after one or several rotations of roller 12. The plunger carries an operating member 51, Fig. 10, at its lower end, the downward stroke of which first of all opens a dual seat venting valve 93, further movement of the plunger causing storage tank 91 to move downwardly against the bias of discharge valve spring 105. The discharge valve has an actuating pin 98 extending from the bottom 96 of a recess 94 of a trough (84) Fig.9  (not shown) to engage a spherical valve body 102. Upon each actuation of the plunger the storage tank is moved vertically and is thus agitated.
Patent GB-1288657-A (GB)
IPC: G03B21/132
Filed: 1970-12-01
Abstract: 1288657 Overhead projectors KINDERMANN & CO GmbH 1 Dec 1970 [5 Dec 1969] 57064/70 Heading G2A An overhead projector is fitted with a detachable adaptor 7 in front of the projection head 4, 5, 6 to allow the projection of slides or film-strip, the adapter including an insert 10 formed either as a slide-holder or two reels for a film-strip.
Patent GB-1290715-A (GB)
IPC: G05D23/19
Filed: 1969-09-15
Abstract: 1290715 Valves UNITED GAS INDUSTRIES Ltd 2 Nov 1970 [15 Sept 1969] 45299/69 Heading F2V [Also in Division G1] A thermal activator comprises a sealed container 10 made of thermally conducting material and containing a heat responsive substance 12, a heater 16 in heat exchange relationship with the container, and a heat sink 20, the arrangement being such that when the temperature in the container has been raised by the heater 16 to a predetermined value, a thermally responsive element 11 forming part of the container moves an actuating member 24 to an operative position where contact between the container 10 and heat sink 20 is established whereby the heat energy which is excess to that required to hold the actuating member 24 in its operative position can be dissipated. As shown, the heat sink 20 forms part of a valve comprising a fluid inlet 18 and outlet 19, a valve seat 21 and a spring biased valve head 22 which is movable by the actuating member 24 which itself is slideable in the heat sink 20. The container contains a liquid, liquid and vapour or a wax which when heated by the heater, which may be electrically operated, can cause the container 10 to move into contact with the heat sink 20 and open the-valve, when the heater is switched off heat is quickly dissipated to cause the valve to close. A thermal insulating cap 14 surrounding the container may be provided and a flexible seal 26 may be provided between the container 10 and heat sink 20. In a further embodiment the heat sink, instead of the container, is movable by the effect of the heater on the substance in the container.
Patent GB-1305396-A (GB)
IPC: H01F10/06
Filed: 1970-01-06
Abstract: 1305396 Magnetic storage apparatus KOMBINAT ROBOTRON VEB 6 Jan 1970 554/70 Heading H3B A magnetic thin film store is formed by including the steps of applying a sequence of layers of magnetic trim film material and conductors to a substrate so that the top layer is a conductor layer, applying a carrier layer to embed the top layer conductors and removing the substrate. In the arrangement of Fig. 3, a plate glass substrate first has deposited thereon an intermediate layer of copper or common salt, after which an insulating layer 4 followed by layers of thin magnetic film, copper and resistance material are deposited. After forming strips 5<SP>1</SP>, 5<SP>11</SP> and 6<SP>1</SP>, 6<SP>11</SP> out of the magnetic and copper layers as well as the resistances (not shown), a carrier layer 3 of ferrite resin is applied and then the glass substrate and intermediate layer are removed. A resin carrier 8 carrying conductors 7<SP>1</SP>, 7<SP>11</SP> coated with Permalloy and produced in a similar manner as carrier 3 except that the insulating layer 4 and magnetic thin films 5<SP>1</SP>, 5<SP>11</SP> are omitted, is positioned over the carrier 3 to complete the storage device as shown. The easy axis of the thin film 5<SP>1</SP>, 5<SP>11</SP> lies in the direction 12 and magnetization therealong in response to digit current in lines 7<SP>1</SP>, 7<SP>11</SP> closes round the conductors 7<SP>1</SP>, 7<SP>11</SP> through the Permalloy 9<SP>1</SP>, 9<SP>11</SP>. In the hard axis direction 11, the flux path is closed round word conductors 6<SP>1</SP>, 6<SP>11</SP> through the magnetic carrier 3. The magnetic thin films 5<SP>1</SP>, 5<SP>11</SP> may be applied to conductors 7<SP>1</SP>, 7<SP>11</SP> instead of conductors 6<SP>1</SP>, 6<SP>11</SP> in which case a flux path is closed completely in the easy direction but not in the hard direction. By interconnecting conductors 7<SP>1</SP> and 7<SP>11</SP> and 6<SP>1</SP>, 6<SP>11</SP>, each bit position is defined by four cross-over points. A conducting baseplate may be provided over the magnetic covering 9<SP>1</SP>, 9<SP>11</SP> serving as a return conductor, a bit position then being defined by a single or two cross-over points.  The insulating layer 4 and Permalloy strips of Fig. 3 may be omitted, Fig. 2 (not shown), in which case the upper portion of the storage device comprises the carrier 8 of ferrite resin carrying embedded conductor strips 7<SP>1</SP>, 7<SP>11</SP> coated with insulating strips. In this case magnetization along the easy axis closes round the conductors 7<SP>1</SP>, 7<SP>11</SP> through carrier 8 and along the hard axis round conductors 6<SP>1</SP>, 6<SP>11</SP> through carrier 3. A storage device adapted for non-destructive read-out, Fig. 4 (not shown), includes a set of additional conductors overlying the Permalloy strips 9<SP>1</SP>, 9<SP>11</SP> of Fig. 3 so that when the magnetization of thin films 5<SP>1</SP>, 5<SP>11</SP> is rotated into the hard axis currents induced in the additional conductors cause magnetic fields in the easy direction to re-establish the original magnetization.
Patent GB-1310674-A (GB)
Title: Apparatus for use in dispensing beer
IPC: B67D1/14
Filed: 1969-04-02
Abstract: 1310674 Dispensing beer &c BASS CHARRINGTON Ltd 2 April 1970 [2 April 1969 16 July 1969] 17280/69 and 35900/69 Heading A4T In an apparatus for dispensing beer &c. from a common source to a number of dispensing valves at different heights in a building and wherein the dispensing pressure must be great enough to convey the beer to the greatest height and is consequently too great for the lower heights the dispensing valves 12 at the lower heights have restrictors 20 arranged in their pipes 11 to reduce the flow of the beer and prevent excessive frothing. Various restrictors Figs. 2 to 7 (not shown) are described which may be of different sizes to fit various taps and one embodiment may induce frothing where frothing is insufficient.
Patent GB-1312468-A (GB)
Title: Dentistry
IPC: A61C13/30
Filed: 1970-11-06
Abstract: 1312468 Artificial teeth P F KURER 5 Nov 1971 [6 Nov 1970] 53036/70 Heading A5R A method of casting a post for a tooth crown comprises the steps of widening and deepening the root canal and countersinking to accommodate the head of a preformed headed post which is inserted in the canal, the post being made from polypropylene, polystyrene, or wax, shaping the head of the post to conform with surrounding teeth, removing the post from the root canal, inserting the post in dental inserting material, and using the mould so obtained to cast a post from gold or platinum/iridium alloy. A crown may then be fitted on the post. The preformed post may be of variable length. A cement simulation disc may be located on the root face before insertion of the preformed post into the canal, to represent the anticipated thickness of the cement which will be used to attach the cast post. A crown for the cast post may be made by taking an impression of the preformed post and of the surrounding teeth after the shaping of the head of the preformed post, locating the head of the preformed post in the impression, and then making a model from the impression, including the preformed post. The cast post can then be fitted to the model, and a crown therefor shaped. The cast post and crown can then be fitted in the patient's mouth.
Patent GB-1315114-A (GB)
Title: Wall-coverings
IPC: C09J7/30
Filed: 1969-05-16
Abstract: 1315114 Adhesive coated wall coverings SCOTT BADER CO Ltd 7 May 1970 [16 May 1969] 25107/69 Heading B2E A washable wall covering comprises a base sheet coated on the back surface with a permanently tacky pressure sensitive adhesive and coated on the front surface with a protective release coat, the pressure sensitive adhesive coating and the release coat being so chosen that the front surface of a coated base sheet will easily release from the pressure sensitive adhesive coating, the base sheet consisting of a flexible thermoplastic synthetic material and having a printed and/or embossed pattern on its front face. The base sheet may contain one or more polymers or co-polymers and may contain pigments and/or plasticizers, or it may be a laminate of thermoplastic synthetic material with a base substrate of non-woven material, e.g. paper or a randomly laid non- woven web of fibres, e.g. polyester fibres or of a woven textile fabric, or it may be a laminate of two or more layers of synthetic thermoplastics material. Synthetic thermoplastic material for the base sheet may be polyvinyl chloride, polyethylene, polypropylene, fluorine-substituted polyolefines, a foamed synthetic polymer, e.g. expanded polystyrene. The pressure sensitive adhesive may be synthetic and natural rubbers compounded with a tackifying resin, polyisobutylene, polyvinyl alkyl ethers, e.g. polyvinyl isobutyl ether, polyacrylic esters and co-polymers thereof, e.g. copolymers of 2-ethyl-hexyl acrylate and/or heptyl acrylate and methyl methacrylate and co-polymers of vinyl acetate and 2-ethyl-hexyl acylate and/or heptyl acrylate. The release coat may be a silicone applied as a dispersion or emulsion.
Patent GB-1315834-A (GB)
Title: Passage of ships through ice
IPC: B63B35/08
Filed: 1970-08-13
Abstract: 1315834 Icebreakers J V BUCKLAND 6 Aug 1971 [13 Aug 1970 14 Oct 1970] 39050/70 and 48739/70 Heading B7A  A ship or submarine is provided with means to apply heat from the propulsion machinery to surrounding sea ice to cause it to melt and so free the vessel. The means comprises a set of nozzles (6) protruding through the hull and connected to either the boiler of a steam ship, or the exhaust gases of a diesel ship. The nozzles can be mounted on the ends of adjustable booms (9, 21 or 23). Additional heat generators such as laser beams may be provided together with sonic means to break up the ice.
Patent GB-1322334-A (GB)
Title: Folding tables
IPC: A47B25/00
Filed: 1969-07-17
Abstract: 1322334 Folding tables; bracket tables DUNLOP HOLDINGS Ltd 16 July 1970 [17 July 1969] 36194/69 Headings A4B and A4H A folding table comprises a pair of leaves 11, 12 hinged together at 13, each side of each leaf having a first link 15 pivoted to the leaf at 16 and to a fixed plate 18 at 17, and a second link 19 pivoted to the leaf at 20 and at 21 to a slide 22 slideably mounted on a fixed guide 23. The guide 23 supports the leaves in a horizontal position. The slides 22 are inter-connected by braces (32, 33), Fig.3 (not shown). Guides 23 and slides 22 are of cylindrical or rectangular cross-section. To fold the table, corner legs on the leaves 11, 12 are pivoted inwardly and clipped against the lower surfaces of the leaves, and the free end of each leaf is pivoted downwardly about 16 till the leaves are vertical Fig.2, (not shown). The folding table may comprise one wall-mounted leaf, links 15, 19 of each pair could be pivoted to the leaf at a single pivot, or link 19 could be pivotally attached to the upper part of link 15.
Patent GB-1324649-A (GB)
Title: Tufting machines
IPC: D05C15/34
Filed: 1970-11-16
Abstract: 1324649 Tufting machine UNIVERSAL TUFTING MACHINERY (LANCS) Ltd 15 Feb 1972 [16 Nov 1970] 54351/70 Addition to 1277472 Heading DIG The tufting machine claimed in claim 1 of Specification 1,277,472 is provided with four modifications-(1) The catch selectively connecting the needle bar 16 with the needle holder 7 comprises a plunger 20, here shown as a pneumatically operated plunger controlled by electronic means; (2) A shoulder is provided on the holder 7 at 16 to contact a shoulder 17 on the bar to assist in withdrawing the needle from the backing material; (3) Each needle bar includes a yarn gripping device 28 which permits forward feed of the yarn but prevents its backward movement; (4) Each needle aserobly comprises two rows of needles, those of one row being staggered with respect to the other to lie on different tuft lines (Fig. 6, not shown). The Specification also discloses a plate 32 holding the backing material onto its backing plate. The holders 7 are bushed with self-lubricating bushes for the needle bars. The loopers and knives (Fig. I, not shown) reciprocate horizontally. (For Figure see next column)
Patent GB-1327131-A (GB)
Title: Device for ultrasonic broaching of a pluarlity of holes
IPC: B28D5/02
Filed: 1971-09-21
Abstract: 1327131 Ultrasonic drills F G STAROS 21 Sept 1971 43928/71 Heading B4C An ultrasonic drill comprises a plurality of wires 2, the ends 17 of which form holes in an article 3, e.g. a ferrite cord, during operation of the drill. Each wire is fed from a spool 16 and during drilling is clamped between plates 5 and 6. Plate 6 includes a plurality of grooves, e.g. V-shaped, each accommodating a respective wire, and the clamping face of plate 5 includes a layer of elastic material 7 e.g. rubber, and a layer of further material 10 e.g. foil. When the wires become worn, advancing of the wires becomes necessary. This is achieved by first moving lever 11a upwardly about its pivot 12 until the arm attached thereto contacts the rightmost stop 14. During this upward movement the arrangement 13, which lightly clamps the wires, slides relative thereto. The screws 9 are now turned to reduce the clamping pressure exerted by the plates 5 and 6 so that downward pivotal movement of the lever 11a will now advance the wires a distance determined by the spacing of stops 14. Finally the wires are again clamped between the plates 5 and 6, by appropriately turning the screws.
Patent GB-1332103-A (GB)
Title: Window cleaning device
IPC: A47L1/06
Filed: 1972-01-14
Abstract: 1332103 Portable window cleaning device MALLORY HARDWARE PRODUCTS Ltd 14 Jan 1972 1807/72 Heading A4F A net 30 of nylon, polypropylene, rayon, cotton or polyethylene, protects a cellulose or rubber foam sponge 24 of a cleaning device 10 whilst allowing water to pass freely therethrough. The net may be formed with permanent creases 36 when a flat sponging surface is required, or without creases, the sponge then being circular in cross-section. The device 10 also comprises a flexible wiper blade 14, and a stiffening strip 28 may be included.
Patent GB-1332461-A (GB)
Title: Tube expanding devices
IPC: B21D39/06
Filed: 1971-04-19
Abstract: 1332461 Tube expanding FOSTER WHEELER JOHN BROWN BOILERS Ltd 19 April 1971 [3 March 1970] 10197/70 Headings B3J and B3Q A tube expander comprises a stem 12 for insertion in the tube 102 and a sleeve 16 expansible by hydraulic fluid supplied along the stem, seals 36, 38, 40, 42 preventing escape of the fluid and parts 20, 22 of the stem preventing expansion of the ends of the sleeve 16. As shown, the sleeve 16 is of polyurethane and is secured by nuts 20, 22 on the stem, a nozzle-section of the stem being clamped by a screw 24. Compressedair acting on a piston 46 operates a plunger 50 to supply the hydraulic fluid from a reservoir 62. The expander is located by a stop 101 on the nut 20 and a safety device prevents expansion of the sleeve if the expander is out of a tube. The safety device includes a rod 90 moved endwise by a tube plate 100 or the expander is inserted in a tube. A lever 94 turned by the rod allows a spring-pressed valve 36 to close, sealing an exhaust passage 84.
Patent GB-1333547-A (GB)
Title: Pick-up tubes
IPC: H01J29/86
Filed: 1972-06-15
Abstract: 1333547 Image pick-up tubes ENGLISH ELECTRIC VALVE CO Ltd 15 June 1972 28000/72 Addition to 1299288 Heading H1D In an image pick-up tube wherein the dark current is increased by illuminating the target with an auxiliary light source, as described in Specification 1,299,288, the light source is accommodated in a cavity extending into the envelope and sealed against the vacuum in the tube. In Fig. 3 the lamp 5 is located in a tube 6 which extends diametrically across the skirt of the glass envelope; leads from the lamp (not shown) extend round the outside of the envelope to the connector pins 4a serving the cathode heater. The tube is interchangeable with known tubes, being identical in external appearance, and the lamp 5 may readily be replaced when necessary after dissolving the adhesive by which the end cap 3 is secured to the envelope. In a modification, Fig. 5 (not shown), the envelope is provided with a re-entrant cavity in which the lamp may be located on the axis of the tube.
Patent GB-1333949-A (GB)
Title: Colouration process
IPC: D06P/
Filed: 1971-11-10
Abstract: 1333949 Dyeing synthetic materials IMPERIAL CHEMICAL INDUSTRIES Ltd 10 Nov 1971 [8 Dec 1970] 58274/70 Addition to 1255152 Heading D1B Synthetic textile materials are dyed by treating with a solution or dispersion in a halogenated hydrocarbon of an anthraquinone dye or dye mixture as produced by the process of Specification 1255152, and in the presence of between 0.2% and 5% of water based on the volume of the halogenated hydrocarbon, the dyeing being effected at a temperature above the boiling point of the azeotrope of the halogenated hydrocarbon and water, at a pressure above atmospheric pressure. Polyamide, aromatic polyester, and cellulose triacetate may be dyed, the preferred halogenated hydrocarbon being perchloroethylene, deflocculating and emulsifying agents optionally being present.