baber/WOPTO huggingface dataset:
Patent GB-1311733-A (GB)
Title: Electrical heating devices
IPC: F24H1/20
Filed: 1970-04-17
Abstract: 1311733 Resistance heating elements STANDARD MOTOR PRODUCTS Inc 17 April 1970 [18 April 1969 7 May 1969] 18583/70 Heading H5H At least one insulated heating conductor 16, 17, 47, 48, is held between two planar metallic members 44, 45 secured together or by a portion 14, 15 of one such member 11 surrounding it. The metallic member(s) is(are) deformed into convoluted form, and may be secured to a rigid base 12. The heating element may be used as a skirting-board heater. The insulation 18 is wrapped around a wire or ribbon conductor 13 to provide the heating element, Fig. 10. Planar metallic members and bases are secured together by struck-out portions or by welding. A convoluted heating member 58 is secured to members 56, 57 of a heater frame 55, and offset flanges 62, 63, are provided by one of the planar metallic members securing the insulated heating conductor 28a, Fig. 21 (not shown).
Patent GB-848590-A (GB)
Title: Improvements in fluid-tight packing rings
IPC: F16J15/32
Filed: 1958-06-11
Abstract: 848,590. Piston and stuffing-box packing. ANGUS & CO Ltd., G., THOMPSON, E. C., and BROUGHTON, C. June 4, 1959 [June 11, 1958], No. 18652/58. Classes 122 (1) and 122 (5). In a rubber packing ring including an axial flange 3 with a scaling lip 9 adapted to seal against a relatively movable surface 8, for example a cylinder wall, in order to minimise extrusion the flange is reinforced by an embedded rigid member 6 extending from the back 1 of the flange towards the sealing lip, the thickness of rubber covering the member 6 on the side facing the surface 8 increasing from the base of the flange towards the lip. Fig. 1 shows a U-section piston ring, the member 6 being the axial flange of an L-section metal ring. The ring may be of oil resistant synthetic rubber such as butadiene acrylic nitrile copolymer.
Patent GB-677734-A (GB)
Title: Improvements in or relating to airships
IPC: B64B1/40
Filed: 1949-07-18
Abstract: 677,734. Airships. ECKINGTON, F. J. Oct. 18, 1950 [Ju]y 18, 1949], No. 18859/49. Class 4. An airship having a longitudinal passage 10 throughout its body is provided in its leading surface with a pair of independently-operable, longitudinally-retractable shields 9 of semi-circular cross section, situated one on each side of the forward end of the said passage. It is stated that the shields provide added stability during a turn, the shield on the outside of the turn being projected for that purpose. The frame comprises a number of ring members 23 connected to a central tubular member 10a and linked by longitudinal stringers 26. Annular gas bags 24, formed of C-shaped cross-section bags laced together by flaps at their edges, are secured to the tubular member 10a and to the outer framework and are encased in nets. Catwalks and ladders link the tubular member and the outer structure.
Patent GB-689775-A (GB)
Title: Improvements relating to a valve for use in a water heating installation
IPC: E03C1/044
Filed: 1948-07-14
Abstract: 689,775. Supply and delivery arrangements for hot-water storage chambers. MAUNDER. H. N. July 14, 1948 [May 26, 1948], No. 18970/48. Class 64 (i) [Also in Group XXIX] A valve provided in a water-heating apparatus, for use in conjunction with a main supply tap, comprises a cylinder port, a main supply port and an outlet port all communicating with a chamber containing a plunger normally spring loaded to close the cylinder port and manually operable against the spring to open the cylinder and close the outlet port. As shown, the valve body is attached to the tap by the resilient sealing washer 5 so that cold water passes through the supply port 3, valve chamber 2 and outlet 10, the plunger 16 closing the cylinder port 9. By pulling the plunger against the spring 17 on to the outlet port 8, the cold water enters the cylinder by the cylinder port to be heated. When the plunger is held intermediate the outlet and cylinder ports by a projection 19 on the valve operating handle 18 abutting a face 20a on the body, hot water flows from the cylinder to the outlet, with or without the admixture of cold water. By turning the handle, the projection 19 enters a recess 20 so that the plunger closes the cylinder port. An electrical earthing connection for the cylinder is made with the main supply tap by the metal washer 7 when the water is electrically heated. In a modification, the valve is permanently connected to the main supply. If the heating cylinder is of the "push through" type having an outlet separate from the cylinder inlet, a restriction in the cylinder inlet or outlet pipe enables a back pressure from the cylinder to hold the plunger closing the valve outlet port when it has been manually moved to that position. On closing the main supply tap, the spring moves the plunger to close the cylinder port.
Patent GB-424753-A (GB)
Title: Improvements in or relating to electric transformer installations
IPC: H01F38/30
Filed: 1934-06-27
Abstract: 424,753. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 27, 1934, No. 19033. Convention date, June 29, 1933. [Class 38 (ii)] An electric transformer is supported by a hollow insulator 5 containing an insulating medium, such as oil, 7, the operative parts of the transformer, such as the core 1, the secondary winding 2 and the primary winding 4, being wholly outside the insulator. The operative parts may be enclosed by a metal cap 6 filled with an insulating medium. Specification 352,596 is referred to.
Patent GB-1263573-A (GB)
Title: Embossed plastic film
IPC: B29C59/04
Filed: 1969-04-14
Abstract: 1,263,573. Embossing. CLOPAY CORP. 14 April, 1969 [25 June, 1968], No. 19059/69. Heading B6J. Plastics material such as a polyolefin thermoplastic (e.g. a polyethylene, a polypropylene or a copolymer of one of these) and having a thickness of 0À00075-0À008 inch is embossed, for example between an engraved steel embossing- roller and a rubber roller, supplied as a preformed film or by slot-die extrusion, in a pattern comprising on one face a plurality of raised bosses of rounded form with rectangular margins arranged in rows and columns at rightangles, defining therebetween intersecting channels at right-angles to and parallel to the longitudinal edges of the film, and the other face a corresponding plurality of depressed areas with intervening ridges, aligned respectively with the bosses and channels, such pattern preventing edge-curl.
Patent GB-530669-A (GB)
Title: Improvements in or relating to circuit arrangements for combined telephone and telegraph transmission systems
IPC: H04M11/06
Filed: 1939-06-30
Abstract: 530,669. Superposed telephony and telegraphy. STANDARD TELEPHONES & CABLES, Ltd. (Braem, L. A. G. A., and Sobola, J.). June 30, 1939, No. 19118. [Class 40 (iv)] In an arrangement for separating telephone and telegraph currents for example at a telephone repeater station by means of high-pass and low-pass filters, the two halves of the telephone repeating coils RC1, RC2 are connected in parallel so that their mutual inductance forms the shunt inductance of the high-pass filters. The invention may also be employed at a terminal station where a telegraph channel is superimposed on a short non-repeater telephone circuit or where a duplex channel is superimposed on a four-wire telephone circuit. Specification 530,621 is referred to.
Patent GB-1384343-A (GB)
Title: Process for the production of relief images using photopoly merisable polymers
IPC: G03F7/038
Filed: 1972-04-25
Abstract: 1384343 Photopolymerizable polymers AGFAGEVAERT AG 25 April 1972 [30 April 1971] 19135/72 Headings C3R and C3P [Also in Division G2] In the production of a photographic relief image by imagewise exposure of a layer of photopolymerizable material and dissolving out of the unexposed material, the material is a photocrosslinkable polymer (produced by reaction of a polymer containing at least two hydroxy groups with a vinyl monomer containing an isocyanate group), containing at least two recurring groups of the formula wherein R is H or C 1-4  alkyl and n is 1-6. The polymer containing at least two hydroxy groups may be cellulose, starch, gelatin, vinyl alcohol homo- or copolymer, polyurethane, epoxy resin, polyester, or hydroxyalkyl acrylate polymer. The photocrosslinkable polymer may have a M.W. of 10,000-100,000 and contain at least two of the recurring groups per 1,000 units of M.W. It may contain 0À1-10% of a photoinitiator. Images can also be obtained by exposing the material to electrons.
Patent GB-890359-A (GB)
Title: Electrostatic recording paper
IPC: H01B3/48
Filed: 1960-05-31
Abstract: 890,359. Electrostatic recording paper. WARREN CO., S. D. May 31, 1960 [June 22, 1957 ; Feb. 1, 1960], No. 19207/60. Class 96. Electrostatic recording paper is made with sufficient electrical conductance (e.g. its resistance measured across opposite sides of a square of the surface may be 10<SP>5</SP> to 10<SP>8</SP> ohms) as by inclusion of sodium or lithium chloride or carbon black with the pulp, or preferably, by impregnating a paper web, e.g. one made from bleached hard wood and coniferous wood pulp obtained by an alkaline pulping process, with a conductive resinous polymer, e.g. polyvinyl benzyl trimethyl ammonium chloride. Such paper is given a dielectric coating of e.g. 3 to 15 gms. per square metre, of a resinous copolymer e.g. of 95% vinyl acetate and 5% of crotonic acid. A surface application of starch and emulsified wax, or of mineral filler and adhesive and wax may precede the dielectric coating to reduce penetration into the paper.
Patent GB-889175-A (GB)
Title: Improvements relating to valve closure members
Inventor: MOORE IVAN GEOFFREY
IPC: F16K1/44
Filed: 1959-06-05
Abstract: 889,175. Valves. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. June 3, 1960 [June 5, 1959], No. 19252/59. Class 135. A self-lapping valve closure member, such as for controlling fluid-flow in a vehicle braking system, comprises a disc 20 adapted for seating on the one or other or both of two annular seating surfaces 12, 19 arranged one within the other about an axis in the direction of wnich the seating surfaces are relatively movable, the disc having a resilient face with a spherically-shaped portion 21 for seating on the surface 19 and an annular face portion for seating on the seating surface 22. The disc is formed of a thin metal plate having layers of synthetic rubber or nylon bonded thereto, one layer having the spherical portion 19 which accommodates a certain degree of misalignment between the two seating surfaces.
Patent GB-1318003-A (GB)
Title: Pulse distortion measurement systems
IPC: H04L25/04
Filed: 1971-06-08
Abstract: 1318003 Digital transmission; distortion measurement SIEMENS AG 8 June 1971 [10 June 1970] 19365/71 Heading H4P In a pulse length measurement system for parallel signals passing through a plurality of output lines, a first pulse flank is used as a reference point which triggers a first delay the end of which is used as a scanning marker during which delay time all pulse flanks occurring are displayed in their time location relative to the reference point. The first pulse flank also enables a second delay initiated by the flank of a first pulse after the first delay period which is also displayed relative to the reference point. In the absence of any pulse flank during the second delay, this and the display device are driven to the initial condition after a preset period. The first delay may be about half and the preset period 1À5 times the theoretical signal length. Parallel signals may be transmitted by frequency groups A, C each containing four frequencies which arive on lines A1-A4, C1- C4 into AS, which separates positive and negative pulse flanks and allots a different characterizing signal to each frequency range. The first pulse flank at instant t1 triggers a first timing device ZG1 of delay time about half signal length and a second time device ZG2 of 1À5 times signal length and trips back automatically at an inst@nt t2 which may correspond to a receiver scanning instant. During the time t1-t2 device ZG1 opens gate G1 so that all pulse flanks are displayed on the oscilloscope via terminal 1. On resetting ZG1, ZG2 is reset at instant t3 by the next pulse flank but does not remain in this position but recommences to time a delay period. If no pulse flank appears after instant t2 however then ZG2 is reset together with a display device into their rest conditions. The first pulse flank after t2 represents beginning of the next signal and is represented relative to the reference point. On resetting ZG2 with coincidence of resetting of ZG1, a gate G2 transmits a pulse t3 to terminal 2 to vertically deflect the c.r.t. beam, horizontal deflection of which is controlled by a sawtooth waveform of period 1À5 times signal length. In Fig. 5 (not shown) a form of AS suitable for three frequency ranges is shown in greater detail which in addition to characterizing rising and falling as positive and negative signals, in addition allocates differing amplitudes of beam deflection to each frequency group. To avoid two simultaneous pulses of opposite polarity mutually cancelling, the voltage supply is periodically switched at high frequency by means of an astable multivibrator (MV). Positive and negative traces with differing amplitudes corresponding to frequency ranges are illustrated in Fig. 3 (not shown).
Patent GB-584025-A (GB)
Title: Improvements in the attachment of a bicycle handlebar to its stem
IPC: B62K21/12
Filed: 1944-10-11
Abstract: 584,025. Handle-bars. COVENTRY-EAGLE CYCLE & MOTOR CO., Ltd., and ASTILL, C. J. Oct. 11, 1944, No. 19541. [Class 136 (iii)] An attachment of a bicycle handle-bar 3 to its stem 2 comprises a lug 4 secured or brazed to the stem which has at its outer end a claw 6 to engage a projection 7 on an element 5 which is held by a locking pin 8 passing through a. hole in it and screwed into the lug 4 to grip the handle-bar in position between them.
Patent GB-1347361-A (GB)
Title: Polymerisation of ethylene
IPC: C08F10/00
Filed: 1971-06-09
Abstract: 1347361 Polymerizing ethylene IMHICO AG and K H IMHAUSEN 9 June 1971 [7 Aug 1970] 19652/71 Heading C3P In a continuous process for the polymerization of ethylene in a tubular reactor at at least 300 atmospheres and at most 400‹ C. in the presence of oxygen or a free radical initiator and 0 to 20 mole per cent of a moderator, the rate of flow of the polymerization mixture is constant over the length of the reactor which is provided with a heating and cooling jacket divided into several independent segments, a plurality of selectively operated ethylene feed means and of temperature measuring zones are distributed over the length of the reactor, there is a pressure measuring zone at the up-stream end of the reactor, a first valve at the outlet end of the reactor which is adjusted in dependence upon the temperatures and pressures measured in the reactor in such a way as to restore pressure level and temperature profile in the reactor to predetermined values and which is suddenly opened in dependence upon the rate at which changes in the temperature and pressure measured in the reactor occur until a predetermined pressure is reached, the first valve being connected at its outlet end to a polymer/monomer separation system, and a second valve at the outlet end of the reactor connected to a separate polymer/ monomer separation system separate from that connected to the first valve and which second valve is automatically activated with the first valve closed when the temperatures and pressures measured in the reactor exceed predetermined maximum values or when the pressures fall below a predetermined minimum value. The ethylene may be copolymerized with vinyl esters, acrylic derivatives or alkenes. Suitable moderators are hydrocarbons, alcohols, ketones, aldehydes and chlorinated hydrocarbons. The initiator and optionally the moderator and comonomer may be fed in admixture with the ethylene, and additional pressure measuring zones may be arranged along the reactor, the cross-section of the reactor being widened at each inlet in proportion to the amount of material fed to the reactor. An example describes the polymerization of ethylene in the presence of oxygen and propane.
Patent GB-147674-A (GB)
Title: Improvements in treadle mechanisms for the bellows of pneumatically operated musical instruments and the like
IPC: G10B3/02
Filed: 1920-07-08
Abstract: 147,674. Savoye, R., and Dryvers, U. March 18, 1914, [Convention date]. No Patent granted (Sealing fee not paid). Organs, treadle devices for.-In a treadle mechanism, intended for actuating the bellows of pneumatically-operated musical instruments, and designed to give the treadle as long a stroke as possible and to regularize the pressure exerted by the player, the treadle c is connected by a stirrup f with an intermediate lever g one end of which is secured to a fixed point g<2> on the wall of a recess e formed in the instrument by means of an adjustable stationary hinge g<3>. The lever g is connected by an adjustable chain h with horizontal bellows a situated beneath the keyboard of the instrument. The extreme positions of the mechanism are indicated at I and II. When not in use, the mechanism may be raised into the recess. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the mechanism is adapted to operate vertical bellows by securing a second lever to the intermediate lever to form a bell-crank, the free end of the second lever being adjust ably secured to the bellows. This subject-matter does not appear in the Specification as accepted.
Patent GB-530921-A (GB)
Title: A new or improved knife for cutting fruit or other soft substances
IPC: B26B3/02
Filed: 1939-07-06
Abstract: 530,921. Knives ; glassware. NUTBROWN, Ltd., T. M., and NUTBROWN, T. M. July 6, 1939, No. 19657. [Class 30] [Also in Group XXIII] A knife for fruit, vegetables, butter, and cheese is moulded entirely of glass with an integral handle a and blade b, the cutting edge of the knife lying substantially in the same direction as the handle. The blade is bevelled and is ground to form a cutting edge c, and the handle is ornamented.
Patent GB-1048236-A (GB)
Title: Improvements in and relating to butterfly valves
IPC: F16K1/24
Filed: 1964-05-12
Abstract: 1,048,236. Valves. INDUSTRIE-COM PANIE KLEINEWEFERS KONSTRUKTIONS - UND HANDELS G.m.b.H. May 12, 1964 [June 12, 1963], No. 19669/64. Heading F2V. A butterfly valve contains a vane shaft 17, 18 mounted in a pair of counter-rotatable eccentric bushes 7, 11 and 8, 12. The bushes are rotated simultaneously by arms, such as 9, 13, and linkage 24 ... 28 from a shaft 29 to cause the vane to move linearly towards or away from the seat, rotation of the vane through 90 degrees being effected by rotation of one or both of the shafts 17, 18. Automatic means may be used to impart the linear and rotary movements consecutively. A cavity 21 in the vane may be heated or cooled by fluid flowing through passages 20.
Patent GB-966372-A (GB)
Title: Improvements in or relating to grid winding
IPC: H01J19/00
Filed: 1963-05-17
Abstract: 966,372. Winding grids for electronic tubes. WESTINGHOUSE ELECTRIC CORPORATION. May 17, 1963 [Feb. 19, 1963], No. 19779/63. Heading B3E. A method of winding frame grids for electronic tubes comprises winding wire on spaced parallel side rods, deforming temporarily at least one of said side rods prior to the winding of said turns, and maintaining said or each side rod in the deformed condition during the period of winding the turns. Grid wire 84 is directed by a guide 82 over a pair of side rods 10, spaced by cross-bars 12, moved longitudinally and rotated about the longitudinal axis of the grid by a draw bar. A member 20, rotated synchronously with the draw bar by a hollow rotating spindle of the grid winding machine, carries guide and pressure-applying means for the side rods 10. The rods 10 and cross-bars 12 are maintained against a guide surface 38 by a resilient extension of means 44 and the lower side rod 10 is maintained against a guide surface 36 by an element 76 urged down by a spring 78 to bow the upper side rod 10 inwardly by an amount not exceeding the elastic limit of the side rod. Means may be provided to bow side rods. Specification 966,373 is referred to.
Patent GB-1425983-A (GB)
Title: Feeding  trough for a cattle stall
IPC: A01K1/00
Filed: 1973-04-26
Abstract: 1425983 Cattle feeding trough DORMANN NORMBAU KG 26 April 1973 [26 April 1972] 19827/73 Heading AIM A feeding trough 32 and an adjacently placed watering arrangement 31 are mounted on a plate 132 which is pivotally mounted in a fixed wall 13 separating a cattle box 1 from an adjoining gangway, and is pivoted about a central vertical axis 136 to provide food and drink to cattle on either side of the fixed wall 13.
Patent GB-531629-A (GB)
Title: Improved means for washing smoke in chimney shafts
IPC: B01D47/02
Filed: 1939-07-07
Abstract: 531,629. Washing smoke. COFFEY, O. L. July 7, 1939, No. 19848. [Class 55 (ii)] A smoke stack with a deflector 7 to direct gases to an outer housing 10 is fitted with a jet 12 to deliver a water spray on to the deflector. A column of water is maintained in the lower part of the housing by an overflow pipe 15, and returns particles washed from the gases. The housing is of rectangular cross-section and connects with plane side parts of the stack.
Patent GB-1515681-A (GB)
Title: Apparatus and process for testing microparticle response to its environment
IPC: C12M1/34
Filed: 1975-05-12
Abstract: 1515681 Microbiological testing SCIENCE SPECTRUM Inc 12 May 1975 [10 May 1974] 19901/75 Heading C6F [Also in Division G1] A test method comprises: irradiating a test object with a narrow mono-chromatic beam; measuring the energy scattered.in each of a plurality of directions inclined to that of the beam; and comparing the pattern of radiation scattered by the test object with a corresponding pattern measured for a control object.  A carousel 107a (see Division G2) carries cuvettes 105 each containing a sample of broth 106 of bacteria having-dimensions typically 0À1-10Ám. A first sample 106 is a control sample; the others are test samples treated with antibiotics. As the carousel 107a is stepped to bring each sample 106 in turn into the path of a vertically-polarized narrow laser beam 103, e.g. of wavelength 0À64 Ám, a periscope 109 rotates to  receive light scattered at respective angles within a range 30-130 degrees relative to the laser beam and to direct it to a photo-multiplier 116. The control sample is tested first and last, to check the stability of measurements made on the test samples. While the mean displacement D of the scatter pattern is a function of the number and average size of the bacteria present, the shape of the pattern is a further indication of the condition of the sample, being dependent on the number, average and distribution of sizes, average and distribution of shapes, and optical properties. Figs. 1(a), 1(b) and 1(d) illustrate the effects of named antibiotics on certain bacteria known to be susceptible to them. Fig. 1(c) shows the effect of displacing curve T of Fig. 1(b). Fig. 1(e) shows patterns for a super-resistant strain of bacteria when tested with e.g. streptomycin. The effects of six antibiotics on six bacteria are tabulated. An extension of the method to determine minimum inhibitory concentrations -of antibiotics, and a bioassay procedure, are described; these methods use calibrated cultures of known bacteria.