baber/WOPTO huggingface dataset:
Patent GB-1174374-A (GB)
Title: Improvements in and Relating to the Production of Cellular Bodies of Low Specific Gravity.
IPC: B29C67/20
Filed: 1968-05-27
Abstract: 1,174,374. Cellular bodies containing fibres. CONTRAVES A.G. 27 May, 1968 [16 Aug., 1967], No. 25208/68. Addition to 1,118,277. Headings C3C and C3P. A modification of the method of Claim 3 of Specification 1,118,277 wherein the solid pulverulent material is at least partly replaced by a fibrous material having a mean fibre length of up to 4 times the average diameter of the original swelled foamed granules. In the above Claim 3 cellular bodies are produced by mixing a loose mass of spheroid swelled foam granules with a liquid hardenable binder until all the surfaces of the granules are wetted, and solid pulverulent material is then mixed until all the layers of the binder of all the granules are covered so as to form a dry loose mass of spheroid swelled from granules each with a coating shell of hardenable binder with the pulverulent material adhering thereto or at least partially embedded therein, and monolithic cellular structural bodies are formed by compressing the above foam granules under setting conditions of the binder so that a structure with interconnected polyhedral cell walls is formed, the material of any initially formed foam granule constituting the content of any cell chamber. The fibrous material may be glass or textile fibres. The binder may be an epoxy resin. The pulverulent material may be quartz or chalk. The foam granules used in the above Specification were of polystyrene.
Patent GB-797920-A (GB)
Title: Multi-channel radio equipment
IPC: H04J1/06
Filed: 1956-08-17
Abstract: 797,920. Frequency-changing systems. STANDARD TELEPHONES & CABLES, Ltd. Aug. 17, 1956 [Aug. 18, 1955], No. 25217/56. Class 40(6). In a multi-channel radio system, the output frequency is provided by beating a multiple of the frequency of a main oscillator, controlled by one of a set of crystals, with the output of a crystal-controlled local oscillator and selecting the required frequency by means of a filter. As shown, the frequency f of the main oscilla tor 2 is controlled by one of 42 crystals contained in a turret 1 the setting of which is coupled to the output tuning by means of 3: 1 reduction gears 12 and mechanical linkages 11, 13. The broad band multiplier 3 contains three tripler stages hence, if the ratio n2 of the multiplier 7 is unity, 27f is mixed with the output of the local oscillator 6 at frequency f2 to provide three frequencies (27f1, 27f 1  f2) for each crystal. The number of crystals and the bandwidth of the multiplier 3 may be reduced by using more than one ratio n2 and coupling the tuning of the multiplier 7 to the turret 1 through a mechanical linkage 10. Fig. 2 (not shown) is a table giving the number of channels available, the gear ratio, number of crystals and multiplier bandwidth required for various values of f2 and n2.
Patent GB-1058476-A (GB)
Title: Improvements in and relating to magnetrons
IPC: H01J19/36
Filed: 1964-06-18
Abstract: 1,058,476. Magnetrons. ELECTROLUX A.B. June 18, 1964 [July 12, 1963], No. 25250/64. Heading H1D. The multicavity magnetron 13 of a microwave oven has a pair of permanent magnets 19 supported by yokes 20 from the anode block and the yokes are cooled by directing part of the stream of cooling air, drawn from the outside of the oven by a fan 17, over the yokes. The air stream is directed on to the anode body through a pipe 23, but the edges of the stream are deflected to the yokes by shaped, outwardly channelled, pairs of plates 27, 28. Instead of using a closed space separated from the oven space 11, sheet metal pipes extending over the yokes and down to the deflector plates may be used.
Patent GB-532564-A (GB)
Title: Improvements in steam, hydraulic and like valves
IPC: B23K11/00
Filed: 1939-09-07
Abstract: 532,564. Valves. HOPKINSONS, Ltd., and BROWN, R. L. Sept. 7, 1939, No. 25355. [Class 135] [Also in Group XXII] A valve casing of the kind made from a solid drop stamping with flanges produced to recognized standard dimensions has spigots upon its flanges made as separate units butt welded to the flanges. In the form shown, the tapered spigot has a cylindrical part welded in a recess in the flange. A cylindrical or tapered spigot may however be welded to the end face of the flange.
Patent GB-584772-A (GB)
Title: Improvements in or relating to heat-exchangers
IPC: F28F3/08
Filed: 1944-12-18
Abstract: 584,772. Plate heat-exchangers. LISTER & CO., Ltd., R. A., and MORRIS, A. J. Dec. 18, 1944, No. 25359. [Class 64 (iii)] A heat-exchanger comprises a series of heat transfer plates 13 bolted between headers 11 and 12 each plate having a plurality of sinuous grooves on each face, 33, 34 respectively, generally at right angles to those on the other face. The plates are arranged, Fig. 6, so that corresponding grooves face each other to form sinuous channels between the plates, each pair of grooves being connected at each end to a duct formed by parts 35-42 in the plates. For example, fluid entering a pipe connection 20 flows through ducts 18 and 19 which become 39 and 40 from which it can pass via the channels 34 into the ducts 41 and 42 which become ducts 25 and 24 in the header 12 and so out via the pipe connection 32. An identical arrangement holds for the second fluid. The plates and headers may be held together by welding, cementing, soldering, brazing, or vulcanizing, and each pair of plates can have a fluid-tight gasket 45 between them. A distributing block may be arranged between the plates and intermediate the headers to enable the device to be used with three fluids, whilst the plates may be elliptical, circular or any other convenient shape. The grooves on opposite faces of the same plate may be inclined to each other at an angle other than a right angle, and they can be straight instead of sinuous.
Patent GB-1116465-A (GB)
Title: Colonic biopsy instrument
IPC: A61B10/04
Filed: 1966-06-08
Abstract: 1,116,465. Surgical instruments. J. SHIPTON and S. N. SALEM. 12 May, 1967 [8 June, 1966], No. 25451/66. Heading A5R. An instrument for taking samples of tissue from the colon comprises an outer tube 10 closed at one end 15 and having an opening 16 near the closed end, and an inner member 17 carrying at its end adjacent the closed end of the tube a cutter 21 adapted to cut any tissue protruding into the tube through the opening 16, the tube 10 and inner member 17 being arranged such that withdrawing the member 17 produces a partial vacuum which sucks tissue in through the opening. As shown, the inner member 17 comprises a rod which is a close fit in the stainless steel tube 10 and the cutter comprises a sharpened disc 22 on a stem 20 secured to the end of the rod. The disc has apertures 23. The rod is provided with an operating handle (18) and the tube 10 is adjustably secured to a collar (12) arranged so that the instrument may be fitted to a sigmoidoscope (11) and inserted into the rectum. In alternate embodiments, the cutting disc may be replaced by radial cutting vanes or, Figure 8 (not shown), the disc is removable from the stem 20. The rod 17 may be replaced by a member provided with a piston.
Patent GB-534403-A (GB)
Title: A new or improved apparatus for use in advertising, floodlighting, or for producing decorative or ornamental effects
IPC: G09F19/18
Filed: 1939-10-11
Abstract: 534.403. Lamps. LILLIE, W.. CLEARY, J. J., and KAVANAGH, P. Oct. 11, 1939, Nos. 25516 and 30710. [Class 75 (ii)] [Also in Group XVIII] Optical-projection apparatus for the display of advertisements &c. or for illumination, comprises a conical casing a which can be opened about a longitudinal side hinge a<SP>2</SP>. At the larger end is a hinged back e carrying a lamp c and reflector d. A lens j throws an image through an aperture a<SP>4</SP> in the forward end of the casing on to a screen separate or combined with the projector, and optionally angularly adjustable therewith. An image may be projected on to the screen by inserting a removable stencilled plate m between the lamp c and the lens j, or by forming the filaments of the electric lamp or lamps c in the shape of images, or by providing the matter to be projected on the reflector d, which in this case may be made rotatable. A colouring device comprising a diffracting prism l is located in a cap k rotatable on the front end of the casing a. The prism l may be mounted on a spindle o for angular adjustment, or may be rotated by hand or a motor. The casing is pivotally mounted on the top of a shaft slidable in a stand t.
Patent GB-318007-A (GB)
Title: Improvements in and relating to tables and like articles of furniture
IPC: B63B29/12
Filed: 1928-09-07
Abstract: 318,007. Picard, H., and Simard, J. Sept. 7, 1928. Self-levelling apparatus.-Tables and other articles of furniture of the self-levelling type are suspended from a single point by means such as a ball and socket joint and are combined with mechanism for positively restoring the table &c. to the level position. The table is supported from the deck 10 on a ball and socket joint 14 carried by a standard 12. Depending from the table are arms 19 oppositely in pairs and pivoted to members 21 provided with nuts 22 with which engage screw shafts 23 having fast on their lower extremities worm wheels 30, Fig. 4, which in pairs are operated by worms 31 driven by electric motors 33. Associated with the pairs of motors is a pendulum switch 36, Fig. 7, with contacts 38 designed when inclined to move against contacts 35 and operated the appropriate pair of motors until the table is restored to its horizontal position.
Patent GB-710087-A (GB)
Title: Melt-spinning filaments
Inventor: WOOD LEONARD
IPC: D01D5/253
Filed: 1950-10-21
Abstract: Filaments of non-circular cross-section, and yarn consisting of or containing such filaments, which filaments have a shape factor (see below) of at least 1.4, are produced by melt-spinning a synthetic linear polymer having a relative viscosity (see below) of at least 33, under an inert atmosphere, through a spinneret having slot-shaped orifices into a cooling fluid, the filaments or yarn being subsequently cold drawn.  The "shape factor" is the projection of the cross-section of the filament on a straight line oriented so that the projection is a maximum divided by the projection of the cross-section on a straight line at right angles to the former straight line.  The polymers may be polyanhydrides, polyureas, polyurethanes, polyethers or, preferably, polyamides, e.g. polyhexamethylene adipamide.  The "relative viscosity" of a polymer is the ratio of the viscosity of a solution thereof in 90 per cent. by weight formic acid containing 11 grams of polymer per 100 c.c. of solution at 25 DEG C. to the viscosity of 90 per cent. by weight formic acid at the same temperature.  The inert atmosphere under which the polymer is molten may be nitrogen, but is preferably steam. The cooling fluid is preferably air.  The slotshaped orifice is defined as any aperture at least four times as long as it is wide. The aperture may be branched, e.g. cruciform.  It may be rectangular, lentiform, luniform, reniform or, particularly, bone-shaped, i.e. waisted.  The length of the orifice is measured by the straight line joining its most distant points, and the width by the projection of the orifice in a straight line at right angles to the aforesaid straight line. Examples are given of the spinning of polyhexamethylene adipamide under nitrogen from a spinneret containing 15 rectangular slots measuring 0.019 by 0.004 in., the spinning speeds ranging from 805-3,695 f.p.m., the relative viscosities from 33.5 to 47.4, the draw ratios from 3.4 to 4.4 and the shape factors from 1.4 to 2.0. In a specific example the spinning speed is 2,230 f.p.m., the relative viscosity is 44.6, the draw ratio is 4.1 and the shape factor is 2.0.  Specification 533,304 is referred to.
Patent GB-168526-A (GB)
Title: Improvements in dress forms
IPC: A41H5/00
Filed: 1920-09-07
Abstract: 168,526. Hopkins, S. R. Sept. 7, 1920. Lay-figure and like stands. - A dress form which is adjustable to various styles and sizes comprises a standard 8, 10, 11, 12, the lowest section 8 being screwed on a socket 7 attached to the base 5, while the top section 12 carries a rounded head portion 14. The stand is covered with cloth, the skirt portion 20 being tacked to the base 5 while the neck portion is gathered over the head 14 by means of draw strings 32. Coil springs 23 are mounted within pockets 22 placed horizontally at intervals, two wires 24 being placed so as to overlap within each coil spring. The effect of the springs &c. is to cause the stand to assume its maximum size when uncontrolled. When smaller sizes or other styles are required, a jacket of the desired form is fitted on the stand, which is thus contracted in size at the desired places. Shoulder-pads 35 are supported on the top face of a shaped resilient wire 36, and are secured by stitchings 37.
Patent GB-1381028-A (GB)
Title: Foamed thermoplastic films having a leather-like grain
IPC: C08J9/36
Filed: 1972-06-02
Abstract: 1381028 Surface treatment of foamed films IMPERIAL CHEMICAL INDUSTRIES Ltd 22 May 1973 [2 June 1972 29 Sept 1972] 25861/72 and 45064/72 Heading C3C A leather-like grain is formed on a foamed film of a synthetic thermoplastic resin by passing the film around a cylindrical surface having a radius of less than 1 cm. so that the film is bent through an angle of 90-180 degrees. The surface of the film adjacent the surface is thereby compressed and wrinkled, due to the destruction of part of the cellular structure. The surface may be the rounded edge of a plate. The bent film may be bent in the opposite direction by repeating the above process. In the example an open-celled foamed film of a mixture of low and high density polyethylenes and carbon black was treated as above.
Patent GB-1140683-A (GB)
Title: Improvements in fluid flow measuring equipment
Inventor: CRAFT DAVID JOHN
IPC: F15C1/00
Filed: 1965-06-18
Abstract: 1,140,683. Tape sensing. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. 15 June, 1966 [18 June, 1965], No. 25921/65. Heading G4M. [Also in Divisions G1 and H3] In a hot wire flowmeter for use as a punched tape reader, a positive temperature coefficient wire HW, Fig. 2, is arranged in the emitter circuit of a transistor VT2, from the collector of which a positive feedback connection is made to the base of another transistor VT1 to form a variable gain amplifier, in which a variation in resistance of the wire HW due to the cooling effect of a fluid flow produces a change in the heating current through the wire to maintain its resistance at a given value. The collector potential O then represents the value of the fluid flow rate. In an alternative form, the two transistors are of complementary type (Fig. 3, not shown), the hot wire (HW) being connected in the NPN emitter circuit and the feedback being applied to the PNP transistor (VT1).
Patent GB-260254-A (GB)
Title: Prepayment apparatus for generating and supplying compressed air
IPC: G07F17/06
Filed: 1926-10-18
Abstract: 260,254. Crosbie, R. G., Neighbour, A. G. L., Franklin, E. A., and Anderson,. S. Oct. 22, 1925, [Convention date]. Switches, quick-break; pneumatic actuation.- In an apparatus for generating and vending compressed air for inflating pneumatic tyres and comprising an electric motor, driving an air compressor which is connected to a tyre through a pipe and flexible tubing, the motor is stopped when the operator disconnects the tubing from the tyre. The control switch for the motor has a pivoted spring-controlled blade 77, Fig. 7, held in engaged position by a lever 74, 75 which is tripped by a pawl 73 connected to a diaphragm 69 as soon as the pressure drops. The diaphragm is exposed on one side to the pressure in the pipe 5 and on the other side is acted on by a spring 71.
Patent GB-425687-A (GB)
Title: Arrangement for producing relaxation oscillations, more particularly in television arrangements
IPC: H03K4/86
Filed: 1933-09-20
Abstract: 425,687. Television. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. Sept. 20, 1933, No. 25944. Convention date, Sept. 24, 1932. [Classes 40 (iii) and 40 (v)] A relaxation oscillation circuit for producing the scanning potential for television cathoderay apparatus has means 6 for removing from the field of the image the part of return path of the cathode ray, which corresponds to the slow part c of the discharge curve and has a visible effect on the screen. The load is connected across a potential divider 4, 5, which is arranged to pass high-frequency components corresponding to the sharp upper bend b of the potential curve better than low-frequency components by connecting a small condenser 6, or other apparatus with a lower reactance at high frequencies, across the resistance or other impedance 5. Alternatively, a transformer provides a step up at high frequencies, Fig. 5 (not shown). The bottom bend c<1> of the potential curve is displaced to the margin of the picture and the corresponding part of the scanning path is screened from view without loss of part of the image.
Patent GB-1018479-A (GB)
Title: Improvements relating to annular combustion chambers in gas turbine power plants
IPC: F23R3/60
Filed: 1964-06-23
Abstract: 1,018,479. Gas turbine combustion chambers. DAIMLER BENZ A.G. June 23, 1964 [July 4, 1963], No. 25958/64. Heading F1L. The inner and outer walls of an annular gas turbine flame chamber are mounted independently of one another and mutually unconnected, the front and rear ends of both walls being engaged with fixed annular supporting parts so as to be freely movable both radially outwards and axially. The flame chamber has inner and outer annular walls 21, 11 with respective front ends 22, 12 slidably mounted on rings 16, 15. Respective rear ends 23, 13 carry L and U-section rings 23<SP>1</SP>, 13<SP>1</SP> slidably mounted on annular flanges 19, 18 attached to the turbine nozzle ring 17. Walls 21, 11 are not interconnected and can expand freely radially outwards and axially.
Patent GB-376551-A (GB)
Title: An improved spinning bobbin
IPC: B65H75/14
Filed: 1931-09-18
Abstract: 376,551. Bobbins. GROVES, W. W., 30, Southampton Buildings, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on- Main, Germany.) Sept. 18, 1931, No. 26177. [Class 120 (iii).] A flanged bobbin a has one or both flanges provided with one or more detachable rings f, so that the diameter of the flange may be reduced when part of the thread has been drawn off. The outer periphery d, f of each ring is preferably rounded and polished, and the rings may be secured by a screw thread, bayonet-catch, or the like e. Suitable materials are wood for the shank and lower flange, and vulcanized fibre or metal for the detachable rings.
Patent GB-815365-A (GB)
Title: Improvements relating to photoconductive materials and devices
IPC: H01L21/34
Filed: 1955-09-13
Abstract: A photo-conductive material for use in photoelectric cells (see Group XXXVI) is made by mixing cadmium sulphide, selenide or sulphoselenide with a flux, firing above the melting point of the flux and washing out the crystals from the resulting product, firing the washed crystals to sinter them into a mass, breaking up the mass into powder without grinding and finally firing the powder in a third firing below the sintering temperature at least part of which is carried out under atmospheric pressure in the presence of sulphur.  In a specific example 100 grams of cadmium sulphide or selenide or a mixture of the two is mixed with 10 grams of cadmium chloride, 1 gram of ammonium chloride 0.7 ml. of 0.1 mol. copper chloride and 25 ml. water and the mixture dried at 150 DEG  C. for 15 hours, broken up and fired at 600 DEG  C. for 20 minutes.  The fired mass, consisting of CdS crystals impregnated with Cu and Cl is soaked and washed in water to remove most of the CdCl2, then moistened with a solution containing equal parts of 0.1 mol. CdCl2 and 1 mol. NH4Cl and passed through a 325-mesh sieve.  It is then fired at 600 DEG  C. for 20 minutes and the sintered mass resulting is grated through a 50-mesh sieve, and is fired in the presence of sulphur vapour for 10 minutes at 500 DEG  C. and for a further 10 minutes in vacuo. After cooling it is passed through a 325-mesh sieve.  Ag or another monovalent iron may replace Cu.  In a further embodiment cadmium sulphide is crystallized from a mass comprising 10 per cent by weight of a molten flux containing a halide and the flux leached out.  Cu is added and diffused into the CdS in a second firing.
Patent GB-169098-A (GB)
Title: Improvements in foundry studs
IPC: B22C21/14
Filed: 1920-09-14
Abstract: 169,098. Gould, W. H. Sept. 14, 1920. Chalets.-A hollow adjustable foundry stud comprises two sleeves in threaded engagement each having a flange at its outer end. The sleeves are threaded internally and externally and a series each adapted to fit inside a larger or outside a smaller size sleeve may be employed. The hole serves as a vent and may be afterwards closed by a screw plug.
Patent GB-1388882-A (GB)
Title: Multiple chamber columns
IPC: B01D53/04
Filed: 1972-06-07
Abstract: 1388882 Uniform catalyst and absorbent packing in multiple chamber columns TORAY INDUSTRIES INC 7 June 1972 [7 June 1971 16 June 1971] 26460/72 Headings B1F and B1L Apparatus comprising beds of packing material 1, Fig. 1, have sticks 10, Fig. 3, arranged across the beds to obtain uniform packing of the bed material when charged through loading holes 4. The packing may be alumina, quartz, active catalyst or absorbent such as active carbon, molecular sieve or silica gel. The separation of n-paraffin, olefin, paraxylylene and hydrogen is referred to.
Patent GB-222688-A (GB)
Title: Improvements in or relating to apparatus for controlling the flow of liquids
IPC: F22D5/14
Filed: 1923-10-23
Abstract: 222,688. Rushen, P. C., (Doble Laboratories, Inc.). Oct. 23, 1923. Regulating delivery by opening suction valve.- In an apparatus for controlling the flow of fluids particularly applicable for controlling the supply of feed water to a steam generator and of the kind in which the suction valve of a continuouslyacting pump is adapted to be held open or closed by electromagnetic means controlled by a thermostat the stem 15 of the valve 12 is extended to form the core 16 of the solenoid 17.
Patent GB-1316387-A (GB)
Title: Organic photoconductive materials
IPC: C08F12/32
Filed: 1971-04-19
Abstract: 1316387 Photoconductive material HITACHI Ltd 19 April 1971 [8 April 1970 7 Dec 1970(3)] 26515/71 Heading H1K [Also in Divisions C3 and C5] Photoconductive material comprises a polymer or copolymer of 9(p-vinylphenyl)anthracene and optionally 10-90 wt. per cent terphenyl by wt. of the polymer. Sensitizers, e.g. nitroanthraquinone, chloroaniline tetracyanoethylene, tetracyanoquinodimethane, phthalic anhydride, trichloroacetic acid or a Lewis acid may be present in amount 1-80 wt. per cent and a dye sensitizer may be present in amount 0À1-10 wt. per cent.
Patent GB-509907-A (GB)
Title: Mechanical ciphering method
IPC: G09C1/10
Filed: 1937-10-01
Abstract: 509,907. Ciphering apparatus. SBRIESER, E. Oct. 1, 1937, No. 26565. Void. Convention date, Jan. 4. [Class 146 (ii)] In ciphering-apparatus, the depression of any key corresponding to a letter in the text both makes a final selection of the message key to be actuated and also a pre-selection of a set of message keys from which the next letter makes a final selection. Thus, in a machine with test keys a ... i and message keys A ... I, depression of key b will pass an impulse through contact m and pre-selected switch K<1> to solenoid n to actuate message key A and then pass an impulse through contact o to solenoid S<2> to set switch K<2> ready for the next test operation. The operation may involve one or two additional sets of switches so that one or two intermediate selections may occur. Instead of switches, variable resistances may be used in a Wheatstone-bridge circuit, the final current strength leading to the indicating or recording of a definite letter. The apparatus may have an additional key for deciphering.