baber/WOPTO huggingface dataset:
Patent GB-434872-A (GB)
Title: Improved method of applying by pressure to a compressible substratum a layer of mouldable material containing a hardening synthetic resin
IPC: B05D7/06
Filed: 1935-02-25
Abstract: A layer of mouldable material containing a hardening synthetic resin is applied by heat and pressure to a compressible base by first applying a high pressure for such a short time as to liquefy the material and then applying a considerably lower pressure while heating is maintained until the material has hardened.  A wooden plate is covered with a thin layer of a mixture comprising 50 per cent by weight of phenolformaldehyde condensation product and 50 per cent of wood dust.  A layer of paper impregnated with resin may be inserted between the wood and the resin powder.  The plate is then pressed for three minutes at a temperature of 150-160 DEG  C. under a pressure of 70 kg/cm2 and afterwards for 7-10 minutes under a pressure of 10 kg/cm2.  The base may also be made of cork, synthetic wood, or the material known under the Registered Trade Mark "Celotex."
Patent GB-1390521-A (GB)
Title: Liquid-crystal non-linear light modulators using electric and magnetic fields
Inventor: FERGASON JAMES L
IPC: C09K19/02
Filed: 1972-02-09
Abstract: 1390521 Modulating light INTERNATIONAL LIQUID XTAL CO 9 Feb 1972 [9 Feb 1971] 6164/71 Heading H4F An electro-optic device comprises two flat substrates, at least one of which is transparent, with a spacing of 0À05 to 5 mils, and treated and disposed to produce a twisted structure in a nematic liquid crystal composition disposed therebetween, the composition having a nematic phase at least between - 10‹ and 70‹ C., and having, together with at least one nematic component thereof, a positive dielectric anisotropy. The composition may be that described and claimed in Specification 1,390,522. The substrates may be treated by rubbing in respective mutually inclined directions, whereby the long molecular axes are aligned parallel to the adjacent surface and rubbing direction thereof. The twisted structure is optically active. Application of an electric field, e.g. between electrodes on either side of the nematic layer, aligns the molecular axes orthogonal to the substrates and destroys the optical activity. Intensity modulation is obtained by disposing the nematic layer between parallel or crossed polarizers, which may be separate elements or thin dichroic films deposited on the rubbed surfaces of the substrates. Addition of a further device and polarizer (all three polarizers parallel), gives an AND gate. An exclusive NOR gate is provided by two devices in series between parallel polarizers. Reference is made to Boolean function generators, alphanumeric displays and 3D television images viewed with polarizing glasses.
Patent GB-1504122-A (GB)
Title: Texturing yarn
IPC: D02G1/16
Filed: 1975-02-10
Abstract: 1504122 Texturing yarns TEXTURED JERSEY Ltd 10 Feb 1975 [12 Feb 1974] 06243/74 Heading D1F In a texturing and bulking operation, multifilament yarn is passed through a turbulent air zone within a jet nozzle through which the flow of air is 5.5-7.0 cubic feet/minute and the partially textured yarn is passed through a second turbulent air zone immediately externally of the jet. The second zone may be created by impingement of the main flow of air against a solid baffle plate adjacent e.g. 3-15 m.m. distance from the jet outlet orifice or by further jets of air (directed as at A or A and B Fig. 1, not shown).
Patent GB-1377544-A (GB)
Title: Thermionic cathode
IPC: H01J1/16
Filed: 1972-02-10
Abstract: 1377544 Thermionic cathodes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Feb 1972 [13 Feb 1971] 6264/72 Heading H1D A thermionic cathode comprises an elongate conductor 1 having a cavity 2 in its surface so that a heating current produces maximum heating adjacent the cavity the surface of which constitutes the emissive area. The cathode is a W, Ti, or LaB 6  wire of circular or rectangular cross-section with a circular or elliptical reentrant cavity. Local heating is increased since the cavity radiates less heat than plane surfaces or the wire. With use the cavity increases hence the heating current may be reduced. The cathode is used in electron beam apparatus mounted by ceramic supports in a grid cylinder with the cavity adjacent a non symmetrical aperture in an end plate of the cylinder. The cavity may be formed by spark erosion, electron beam machining or photographic etching through the aperture.
Patent GB-944995-A (GB)
Title: Improvements in and relating to tubular heat exchangers
IPC: F28F9/26
Filed: 1961-02-21
Abstract: 944,995. Tubular heat exchangers. H. FRANKENHAGEN, and G. FRANKENHAGEN, [trading as MASCHINENFABRIK ERNST ZORN]. Feb. 21, 1961 [March 1, 1960], No. 6279/61. Heading F4S. A header is made up of two parts, each so formed that at least two adjacent walls of each part have no opposite walls. The two parts, including any necessary holes required may be formed by a stamping operation, the parts being welded together to form a header having holes therein to receive the heat-exchange tubes 1 and a pipe 12 conveying fluid to or from the header. In the form shown, each part comprises two complete adjacent walls and two triangular walls the parts being welded together along a diagonal joint 9. In a further form described (Fig. 3, not shown), each part forms three sides of a rectangular box, the two parts together forming the complete box. The tubes may be of circular, rectangular or oval crosssection and provided with transverse fins 2 which in the case of circular section tubes may each be secured against turning by a tapering torque 5 which engages in a hole in a neighbouring fin.
Patent GB-136409-A (GB)
Title: Improvements in Fabrics and Method of Making the same.
Inventor: PATTISON EDMUND WARD
IPC: A61F5/03
Filed: 1919-03-13
Abstract: 136,409. Pattison, E. W., (Victory Corset Co.). March 13, 1919. Elastic bandages are made from a number of elastic strips 1-4, each slightly smaller than-the one preceding, which are secured edge to edge while the edge of the one strip is stretched relative to the adjacent strip. The strips may be sewn together simultaneously, or, as shown in Fig. 4, in succession, the strip 2 being run through a tensioning-device while it is being secured to the strip 1, and the strips 3 &c. being then applied in a similar manner.
Patent GB-269497-A (GB)
Title: Improvements in locomotive fireboxes
IPC: F22B21/00
Filed: 1927-03-07
Abstract: 269,497. Buchli, J. April 14, 1926, [Convontion date]. Fireboxes. - Locomotive fireboxes are closed at the front and rear by walls 7, 8, and the side walls are made up of elements comprising vertical tubes 10, 11, 12. connected at their upper ends with a horizontal tube 13 and at their lower euds with drums 3, 4, 5. The tubes 13 are connected alternately to one or other of two upper drums 1, 2. Each half of the combustion space has a separate fire door 16 or 17. Crosspieces 14, 15 connecting the tubes have openings for cleaning the tubes.
Patent GB-1156425-A (GB)
Title: Improvements in or relating to Locks
Inventor: FRANKS ALFRED
IPC: E05B9/08
Filed: 1967-02-10
Abstract: 1,156,425. Cylinder locks. C. E. MARSHALL (WOLVERHAMPTON) Ltd. 8 May, 1968 [10 Feb., 1967], No. 6372/67. Heading E2A. In a cylinder lock in which a key-operated cylindrical plug 10 includes an extension 13 having a transverse bore 14 for a spring-loaded plunger 16 by means of which the plug 10 is retained against axial movement relative to the lock body 11, the plunger 16 is retained in the bore by means of a retaining member 20 which is deformed to cause it to expand radially of the bore so that the periphery of the retaining member is embedded in the wall of the bore. As shown, the retaining member 20 is a dished shell washer which abuts a shoulder or lugs on the bore 14 and is flattened by axial pressure applied to the washer to cause its rim to be embedded in the wall of the bore. In use a spigot portion 18 retains the lock in a bore 21 of a switch-operating member 22.
Patent GB-1293942-A (GB)
Title: Method of and apparatus for impregnating and coating stranded bodies
Inventor: TOMLINSON ROY
IPC: H01B13/32
Filed: 1969-02-06
Abstract: 1293942 Wire coating CONNOLLYS (BLACKLEY) Ltd 5 Feb 1970 [6 Feb 1969] 6450/69 Heading D1L The interstices between separate elongated elements of an elongated body, particularly a telecommunications cable formed of insulated wires, are filled in by passing the cable through a bath of filling liquid (e.g. petroleum jelly, petroleum waxes, low molecular weight polyethylene, &c) via cooled dies, the filling liquid being such that it is liquid above ambient temperatures and highly viscous or solid at ambient temperatures, this cooling of the dies being such that the liquid in the bath does not leak out during passage of the elongated body therethrough. The die through which the body passes to leave the bath has a larger aperture than that whereby it enters, this allowing for increased volume due to liquid picked up. The embodiment shown has the filling material heated by an oil jacket around the bath, this being heated by immersion heater 5. The bath is divided in two by a partition 6, the two parts being a reservoir 8 and a bath 7, the two interlinked by valve 15, which valve has a connection to a microswitch 17 such that the machine drawing the cable C through the bath is switched off when the valve is shut. The floats 24, 25 and 26 control the input of filling material to the reservoir via pipe 21, and switch off the machine drawing the cable through when the liquid level falls too low. Pump 18 can pump liquid back to the reservoir 8 from the bath 7. In this embodiment the dies are cooled by vanes (Fig. 1) but these may be replaced by, e.g., water cooling if more cooling is required.
Patent GB-493349-A (GB)
Title: Improvements in or relating to the annealing and pickling of hollow metal articles
IPC: C23G1/00
Filed: 1937-03-04
Abstract: 493,349. Cleaning metal articles ; metal-heating furnaces. CURRAN & CO., Ltd., E., and CURRAN, J. March 4, 1937, No. 6451. [Class 82 (ii)] [Also in Group XII] In a process for annealing and pickling hollow articles, e.g. cartridge cases, the articles are passed through an annealing furnace, preferably by a conveyer, and then through a pickling chamber, preferably by the same conveyer, in which pickling acid is sprayed on to both the interior and exterior surface of the articles. As applied to the treatment of cartridge cases, the latter are placed mouth downwards, on a conveyer 7, Fig. 5, formed of a number of parallel strips 7a of nickel chrome, and spaced by members 7b secured to the strips 7a by bending over and clamping, and are passed through an annealing furnace heated by electric resistances so arranged so that the hottest part of the furnace is at the inlet end of the latter. The cases are then passed by the conveyer 7 through a pickling chamber 9, where they are sprayed with acid from perforated pipes 10, the acid falling to the bottom of the chamber passing through a filter 11, whose perforations are smaller than those in the pipe 10, to a pump 12 and back to the pipes 10. The cases then pass into a washing chamber 20 where they are sprayed with washing liquid, e.g. water, by apparatus similar to that in the chamber 10. The cases may then be subjected to other operations, e.g. pressing. In a modification the annealing furnace 21 is divided into three zones by doors 22, 23, 24 arranged so that they can be raised simultaneously, e.g. by electric motors, sand seals 25 being provided for the doors 22, 23. The brass cases are arranged in batches 28 and the first batch are conveyed by the conveyer 29 into the first zone and raised to a temperature of 130‹ C. To ensure a uniform heating of the cases, a stream of air is drawn over them by a fan 30, and circulated in a closed circuit over the resistance elements 5 by ducts in the side walls of the furnace and ducts 32 which lead to the inlet to the fan 30. The first batch are then conveyed into the second zone, another batch then passing into the first zone, and a fan 33 circulates the air in this zone in which the cases are heated to 260‹ C. The first batch is then passed into the third zone provided with a fan 33a, where they are maintained at 260‹ C., the other two zones also containing batches of the cases. The first batch is then removed from the furnace, allowed to cool on the conveyer and then passed on to another conveyer which conveys the cases through pickling and washing chambers similar to the chambers 9, 20. Brass cartridge cases are usually pickled while hot with a sulphuric acid solution at a temperature of 60-100‹ C. According to the Provisional Specification the pickled articles may be sprayed with soda solution to neutralize the acid before washing with water.
Patent GB-1180013-A (GB)
Title: Improvements relating to Electron or Ion Guns.
Inventor: LODGE JAME ALEC
IPC: H01J37/063
Filed: 1966-02-15
Abstract: 1,180,013. Electron guns; ion sources. ELECTRIC & MUSICAL INDUSTRIES Ltd. 8 Feb., 1967 [15 Feb., 1966], No. 6480/66. Heading H1D. An electron or ion gun includes a collimator electrode 3 in the form of a bundle of tubes through which the beam passes, the length of each of the tubes being at least equal to five times its maximum cross-sectional dimension, whereby electrons or ions having appreciable lateral velocities are removed from the beam. In the electron gun shown the anode 5 forms with the collimator electrode 3 a diverging lens, aberrations due to which may be reduced by choice of a non-planar shape for the exit surface of electrode 3. The tubes forming the collimator electrode may either be parallel, or cone-shaped either converging or diverging towards the cathode (Fig. 2, not shown), the electrode as a whole being mounted within a further, cylindrical electrode, between which and the cathode is disposed an apertured diaphragm or mesh electrode for enhancing control of the beam shape and current. In further arrangements, the collimator electrode is so disposed within an outer electrode that both its ends are situated in substantially field-free regions (Figs. 6 and 7, not shown), or a strong converging field is set up at its output end to produce a beam cross-over thereafter (Figs. 8a and 8b, not shown). The collimator electrode may be formed of a plurality of nickel tubes, a drilled solid block, or corrugated sheets joined to produce an array of holes. The electrode may be employed in the gun of an oscilloscope, electron microscope, electron machining device, or television pick-up tube; when employed in an infra-red camera tube, the central tubes of the bundle may be obturated, to protect the target from radiation from the cathode.
Patent GB-704088-A (GB)
Title: Improvements in or relating to electrical apparatus for indicating whether or not the speed of a rotary member is above a predetermined minimum
IPC: G01P13/00
Filed: 1951-03-19
Abstract: 704,088. Speedometers; in-motion indicators. RECORD ELECTRICAL CO., Ltd., CAMPAIGNE, J., and SPAINK, P. F. ABBINK-. April 4, 1952 [March 19, 1951], No. 6488/51. Class 106 (3) Means for indicating rotation of a shaft or other member comprises a circuit including an indicator (lamp 13) or control means, a source of current and two relay contacts 11, 12, Fig. 1, in series, so that if either relay is de-energized the indicator or control means is de-energized, and two relay coils 5, 9 each associated with one of the relay contacts 11, 12 and each supplied with current through a resistance 4, 8 and a contact 1, 2 adapted to be closed by the shaft or rotating part while the contact supplying the other relay is open and each associated with a condenser 6, 10 connected so as to delay de-energization of the relays, both relays remaining energized if the shaft or other part rotates above a certain minimum speed. In series with each of the contacts 1 and 2 is a spark quench resistance 3 and 7 respectively. The condensers may be connected across the corresponding relays and series resistances and only one spark quench resistance provided, Fig. 2, not shown.
Patent GB-576752-A (GB)
Title: Improvements in or relating to the projection of photographic films and to the exposure of such films
IPC: G03B19/04
Filed: 1944-04-11
Abstract: 576,752. Film projectors and cameras. NEWTON & CO., Ltd., and HAKES, R. W. April 11, 1944, No. 6615. [Classes 97 (i) and 98 (i)] In means for feeding a film in a projector or camera a driving shaft rotates through a pin and slot lost motion device a feed roller mounted on it, and during the initial lost motion period operates a cam frictionallyengaging it, so causing the cam to release film-clamping means prior to the operation of the feed roller. In the device shown; for moving a strip film frame by frame through a projector, the film is moved between containers 2 and 3 and through the projection gate by a sprocket roller 7 loosely mounted on a shaft operated by a knob 6 and carrying a pin engaging a circumferential slot 11 in the roller, which is thus rotated after an initial degree of rotation of the shaft has occurred. During this initial rotation the shaft gives a limited angular movement to a cam 13 through spring friction clutch 17, the cam engaging a pin 26 on one arm of a pivoted inverted U form lever 25, thereby swinging it to the left, as seen in Fig. 3. The arms of this lever are each formed with a slot in which engages a lug 19, 20 extending laterally from the frame of a glass pressure plate 18, which is thus moved, against the action of the blade springs 23, 24, to unclamp the film. The cam 13 is of double form, so that the apparatus is operative for either direction of movement of the film.
Patent GB-1444315-A (GB)
Title: Sampling device for a dynamoelectric machine
IPC: G01N1/22
Filed: 1974-02-13
Abstract: 1444315 Purifying gases GENERAL ELECTRIC CORP 13 Feb 1974 [26 Feb 1973] 6615/ 74 Heading B1T [Also in Divisions H2] A dynamoelectric machine includes either in an ion chamber detector (ICD) line 31, 35 or in a separate line 43, a sampling device S for separating pyrolysis products from the coolant gas of the machine. When local overheating occurs in the machine pyrolysis products emanating from organic materials are carried off in the gas coolant and thereby to the ICD which sets off an alarm signal. Valves 45, 47 in the sampler line are then either automatically or manually closed and the sampling device S removed. The pyrolysis products may then be analysed and the part of the machine where the local overheating is occuring identified. A three-way valve 41 and filter F is included in the ICD line to check the normal (filtered gas flow) signal on the ICD. The sampling device S, Figs. 2 and 3, may consist of a porous wire mesh cylinder 61 containing a solid sleeve 65 and a wire mesh platform 63 supporting silica gel or an open-ended filter box (Fig. 4) having staggered baffles coated with silica gel.
Patent GB-828512-A (GB)
Title: Propelling pencil
Inventor: KEILER LOTHAR
IPC: B43K21/04
Filed: 1958-03-01
Abstract: 828,512. Impulse transmitters. EVERITE PENCIL CO. Ltd. March 1, 1958, No. 6641/58. Class 40 (4). [Also in Group XV] The impulse transmitter of an automatic telephone is actuated by the rear end of a propelling pencil which is so dimensioned as to fit into the holes of the dialling disc D without engaging the face of the dial 13 thereunder,
Patent GB-1211911-A (GB)
Title: Improvements in or relating to bag filling machines
IPC: B65B43/30
Filed: 1968-02-12
Abstract: 1,211,911. Bag filling machine; feeding sheets. POTASSE & ENGRAIS CHIMIQUES. 12 Feb., 1968 [15 Feb., 1967], No. 6748/68. Headings B8C and B8R. A machine picks up empty bags, feeds them between suction grips mounted on two carriages which diverge on moving along horizontal rails arranged to form the branches of a V, thus opening the bags whilst delivering them to below a filling nozzle located above the broader part of the V. The uppermost bag in a magazine 2 is held by suction grips 4 and raised by a pivoted arm 3 into a vertical plane. It is then raised between plates 9, 9<SP>1</SP> carrying suction grippers, by a jack 7 forming part of the arm 3. The plates 9, 9<SP>1</SP> are mounted on carriages 8, 81 which are pulled along rails 12, 12<SP>1</SP>, Fig. 4, by a jack and pulley system 12-15, Fig. 1. The carriages diverge as they progress, thus opening the bag until it is positioned under the filling nozzle 18 which plunges into the open mouth, the bag being held against the nozzle by jacks (21), (22) during filling, Fig. 3 (not shown). The top of the magazine is maintained at a constant level by vertical screw jacks acting on the platform at the base of the magazine and activated by the swing of arm 3. A multiple speed motor is provided to move the platform up or down rapidly, e.g. for reloading.
Patent GB-373673-A (GB)
Title: Improvements relating to hat and hood stretchers
IPC: A42C1/04
Filed: 1931-03-05
Abstract: 373,673. Ha,ts. ROBERTS, F., 2, Pike's Close, Chapel Street, Luton. March 5, 1931. No. 6844. [Class 63.] Stretching in manufacture.-A hollow multipart crown block has slidably mounted end portions simultaneously and directly movable by screw and nut means actuated by a single operating handle, so as to effect a sliding movement of the end portions relatively to an arch-like centre portion. The centre portion may be in one piece or in two pieces expanded with the expansion of the end portions. End portions 1, 2 are expanded by screws 19, 20 operated by a hand-wheel 21, these screws being connected by bevel wheels 22, 23, 24, the wheel 24 driving a right-and-left screw connected to the two halves of the central portion. Each section of the block has a guide pin 28. The screw threads and spur wheels are constructed to give a speed ratio of 4 to 1 for the end and central sections, respectively. A heater 31 is provided. In a modification, the central portions are expanded by links pivoted to a vertical slide formed with rack teeth engaged by a pinion on the shaft of the hand-wheel.
Patent GB-1084564-A (GB)
Title: Improvements in or relating to sealing con tainers
Inventor: ARMSTRONG HERBERT
IPC: F16J13/12
Filed: 1965-02-17
Abstract: 1,084,564. Container closures. METAL BOX CO. Ltd. Nov. 17, 1965 [Feb. 17, 1965], No. 6896/65. Heading B8T. A gas permeable gasket, e.g. for a screw cap, is formed from a sealing compound having an intercellular structure created by the incorporation in the compound of a blowing agent and the decomposition of said agent by heating the compound for a time and at a temperature such that the gasket has a specific gravity less than 1. The compound may include polyvinyl chloride in a plasticizer, the blowing agent a hydrazine derivative, and the compound may be heated at a temperature of 425‹ to 465‹ F. for about one minute to give a specific gravity of between 0À4 and 0À7. When applied to the crown of a screw cap the gasket may be in disc or annular form, and the cap crown may have one or more indentations to prevent the rim of the container to which the cap is applied compressing the gasket enough to impede venting. Alternatively, the cap crown may have raised portions with lands therebetween to compress sections of the gasket against the container rim.