baber/WOPTO huggingface dataset:
Patent GB-941431-A (GB)
Title: Switching arrangement for the electric control of machines
IPC: H01F29/10
Filed: 1959-12-23
Abstract: 941,431. Transformers. K. MAECKER. Dec. 23, 1959 [Dec. 29, 1958], No. 43716/59. Addition to 941,432. Heading H1T. The transformer energizing or controlling the energization of control relays described in the parent Specification has its secondary winding 26 (Fig. 2), or one of its secondary windings, short-circuited, the operating coils 9 of all the relays being connected in series with the primary winding 5 and the transformer having a third core limb which is unwound if there is no other secondary, or the primary being connected in series with only one or some of the relay coils and an ordinary secondary winding being connected in series with the remaining coil or coils. The secondary 5 may be formed of a closed copper jacket and short-circuiting rings 27 may be provided. Instead of the movable member being the pivoted limb 4 a pivoted upper yoke as described in the parent Specification may be provided. The limbs 4 of several transformers may be operated together by a common shaft. The movable core member may be operated hydraulically or pneumatically, by a bimetallic strip, by abutments on moving parts of the machine to be controlled or by a toothed segment, as described in the parent Specification.
Patent GB-1502903-A (GB)
Title: Apparatus for maintaining a constant phase relationship between endless conveyors and associated equipment
IPC: A01D45/10
Filed: 1975-08-27
Abstract: 1502903 Synchronizing conveyers EGYESULT IZZOLAMPA ES VILLAMOSSAGI RT 24 Oct 1975 43748/75 Heading B8A A device for maintaining the relative phase between semifinished articles on a chain conveyer 2 and tools or processing units on a rotary table 8 or a further conveyer 12 during variations in the effective length of the conveyer 2 comprises a linkwork connection 5 between a sprocket wheel 3 maintaining tension in the conveyer chains and the drive to the table 8 or conveyer 12. The drive to the table 8 or other conveyer includes a shaft coupling comprising a fixed sleeve 7 and a slidable sleeve 6 having interconnecting helicoidal bearing surfaces such that as the linkwork 5 moves the sleeve 6 in relation to the movement of the wheel 3 a turning of the drive shaft 9 results to ensure that the tools or processing units remain in phase as set with the articles on the conveyer 2.
Patent GB-1173350-A (GB)
Title: Improvements in or relating to electric cables
Inventor: STANNET ARTHUR WALTER
IPC: H01B9/02
Filed: 1967-09-26
Abstract: 1,173,350. Cable. CENTRAL ELECTRICITY GENERATING BOARD. 27 Nov., 1968 [26 Sept., 1967], No. 43760/67. Heading H1A. A screened cable has lapped high-density polyethylene tape as insulation around a conductor with a conductor screen between the conductor and the insulation formed of highdensity polyethylene tape having one or both surfaces made conductive by printing with a conductive ink. The ink is made conductive by the addition of a noble metal or carbon and the screen may be formed of a number of intercalated layers of tape, 1, 2, 3, 4 having both surfaces conductive, and tapes 5, 6, with the inner surface conductive, two successive tapes overlapping each other to the extent of 50%. A similar screen may be provided outside the insulation. A bedding material which may be partially conducting carbon black paper or a plastics felt or a partially conducting polyethylene may be provided between the conductor and its screen.
Patent GB-438247-A (GB)
IPC: C06F1/26
Abstract: 438,247. Match - making machines. AKT.-GES. FUR MASCHINEN DER ZUNDHOLZINDUSTRIE, and BOHM, G., 79, Dufourstrasse, Zurich, Switzerland. March 27, 1935, No. 9589. [Class 50] The carrier bars 2<1> are caused to slide in guides 2 past the match inserting means 10 from the bottom upwards and at the top of the guides are received by a slide 112 which passes them into a downwardly inclined guide 126. Each bar passes into a slot 122 of a part 127 of the slide and is held therein by a spring- pressed member 123 until the slide, moving in guides 111 by means of a connecting-rod and bell-crank lever 106 operated from the machine shaft 100, causes the member to strike a stop 128 and release the bar which then falls into the guide 126. Paraffin-applying means may comprise a rotary drum dipping into a heated paraffin tank. The heading means may have a supply plate which also serves to keep the igniting mass stirred. After passage through a drying chamber the bars pass downwardly through a match ejecting device which is so arranged next to the inserting means that an operator can stand between them.
Patent GB-1325555-A (GB)
Title: Process for the continuous production of a fibre web densified by heat-shrinkage and apparatus for the performance of the process
IPC: D04H1/06
Filed: 1970-09-15
Abstract: 1325555 Densified webs; finishing fabrics KALLE AG 15 Sept 1970 [17 Sept 1969] 44011/70 Headings D1R and D1S A fibre web containing heat shrinkable fibres is densified by being advanced and exposed on one or both sides to heat first applied at opposite points on the web edges and then applied progressively, from each of the points in a similar manner towards the web axis until the whole web width is heated. The web may be cooled in the unheated web zone beyond the opposed points in the direction of advance of the web. Web 1, advancing through the nips of roller pairs 2 and 5, is heated by tubular heating elements 3a which have nozzles spraying heating fluid, e.g. hot water, hot gas or steam, onto the web. The web may be heated to a temperature of from 60C to 150C, and preferably from 70C to 120C, and may be alternatively heated by one or more electric elements. The web is cooled by triangular element 4, which may contain a liquid cooling medium, such as water, at a temperature of from 0C to 25C, and which may have the shape of an isosceles triangle having an apex angle of from 30 to 90. Heating elements on opposite sides of the web may occupy congruent areas, as may the opposed cooling elements. The web may consist entirely of heat-shrinkable synthetic fibres such as polyethylene, polypropylene, polyvinylidene chloride, polyacrylonitrile or polyamide, and particularly polyethylene terephthalate. Alternatively, the web may include a proportion of non-heat-shrinkable fibres such as natural fibres, e.g. natural or regenerated cellulose, or synthetic high-polymers such as polyamide, polyethylene terephthalate or polyacrylonitrile.
Patent GB-1080028-A (GB)
Title: Pure fluid control apparatus
IPC: F15C1/20
Filed: 1964-11-02
Abstract: 1, 080,028. Controlling fluid flow. JOHNSON SERVICE CO. Nov. 2, 1964 [Nov. 1, 1963], No. 44638/64. Heading G3H. The impingement of two opposed streams 11, 12, Fig. 2 of fluid or quasi fluid material produces a resultant flow 20 which is collected in a region surrounding the position of impingement. The stream 11 passes in succession through orifices 14, 28 between which an input or control flow 31 is introduced, as in Specification 1, 080, 027, and then to a receiving orifice 24 between which and an orifice 17, determining the cross-section of the stream 12, the resultant flow passes to an output passage 25. Variation of the control flow 31 modifies the boundary layer 26 of the stream 11 and alters the effective strength of the stream before impact with the stream 12 so as to vary, with amplification, the output pressure at 25. The device may be employed as a switch by maintaining the stream 11 at constant pressure and varying the pressure of the stream 12 thus causing the output flow 20 to jump from one side to the other of the orifice 24. Fig. 7 shows a modification in which the two streams are introduced through nozzles 48, the input or control flow enters through a fitting 52 and the output is taken from a fitting 54.
Patent GB-1207780-A (GB)
Title: Seat, more especially for indoor seating arrangements, especially for conference, cinema, theatre and concert halls
IPC: A47C1/12
Filed: 1969-09-11
Abstract: 1,207,780. Tip-up seats. PATENT VERWAG A.G. 11 Sept., 1969 [12 Sept., 1968 (2)], No. 44964/69. Heading A4B. A tip-up seat employs identical units A<SP>1</SP>, All as back and seat. The pivots 18 are carried in slots 19, 23, the former cooperating with a pin (not shown) extending between the hole in the side of the unitary plastics frame and one of the three holes in the back to fix the back in a preselected position. The seat abuts the portion 16<SP>11</SP> of the back in its lowered position.
Patent GB-1127288-A (GB)
Title: Improved fuel cell backing plate assembly
Inventor: LEONARD RONALD JAMES
IPC: H01M8/00
Filed: 1966-10-11
Abstract: 1,127,288. Fuel cell electrode. ALLISCHAMBERS MFG. CO. 11 Oct., 1966 [20 Oct., 1965], No. 45418/66. Heading H1B. The invention comprises a fuel cell electrode in which gas is fed to an humidifier mounted on one face of a backing plate and the humidified gas passes through the plate to the electrode mounted on the opposite face. The humidifier may be a sheet of porous material, e.g. asbestos, which contains an aqueous solution, e.g. electrolyte, the outer face of which may be in contact with the electrolyte. The gas is conducted across the inner surface of the sheet by a network of grooves in the surface of the plate and then passes through slots into another network of grooves on the other surface of the plate. From here it can enter the electrode. The electrode itself may be an 85% porous sintered nickel plate. Its resistance to gas flow must be less than that of the humidifier sheet. If it is to operate below 300‹ F., it may be impregnated with a catalyst, e.g. Pt. The electrode may be used in an H 2 /O 2  cell using acid or aqueous KOH as electrolyte. In a particular embodiment gas enters the plate 18 through inlet 20 and is carried by conduit 30 and grooves 29 to humidifier 13. From there it passes via slots 25 and grooves 26 to electrode 12. Unreacted gas escapes via conduit 37 and outlet 21. A number of such plates can be joined together.
Patent GB-1339812-A (GB)
Title: Multi-spindle drilling head having an arrangement for adjusting drilling spindle carriers independently of one another
IPC: B23B39/16
Filed: 1971-04-30
Abstract: 1339812 Multi-spindle drilling heads O OECKL 30 Sept 1971 [30 Sept 1970] 45554/71 Heading B3C A multi-spindle drilling head comprises drilling spindle carriers 1 disposed about an axis to produce different drilling patterns, which are adjustable independently of one another both in the peripheral direction and in the radial direction and are guided for movement in the peripheral direction by pan annular or art annular track 4, 4a adjacent drilling spindle carriers being guided by tracks which overlap one another and which are disposed at different radial distances from said axis. The movements of the carrier 1 can be effected by hand or by a power tool or drive and radial settings are determined by end gauges 5a whilst peripheral settings are determined by a scale 18 and a pointer 19. When set the carriers are clamped in position by tie rods 12<SP>1</SP>, clamping screws 14<SP>1</SP> and yokes 11<SP>1</SP>, 10a.
Patent GB-1117631-A (GB)
Title: Polyethylene compositions
IPC: C08L23/06
Filed: 1965-10-29
Abstract: A composition comprises (1) polyethylene having a melt index of more than 0.5 and 2 to 20% by weight of polyethylene, of (2) a linear head-to-tail block copolymer of propylene with a different a -olefin containing at least 70% polymerized propylene, said copolymer being soluble in boiling n-hexane, up to 10%, by weight, insoluble in boiling diethyl ether, containing 0.5 to 1% ethylenic unsaturation and having an inherent viscosity in tetralin at 145 DEG  C. of 0.2 to 0.6.  Specified propylene comonomers are a -monoolefins containing 2 to 12 carbon atoms.  The copolymers are obtained by extraction with boiling n-hexane from crude block copolymers prepared in inert liquid mediums or in liquid monomers by stereospecific catalysts, e.g. by polymerizing the a -olefin on to the end of a polypropylene chain. The composition may include a propylene homopolymer, in amount up to 10% by weight of the polyethylene.  The blends are prepared by, e.g. extrusion, melt mixing or solution mixing.  In Examples 1, 2, 3 and 5 polyethylene is blended with a propylene/ethylene block copolymer, which may be replaced in Example 2 with a propylene/butene-1 block copolymer and in Example 3 with a propylene/hexene-1 block copolymer, and in Example 4 a propylene homopolymer is also included.
Patent GB-979208-A (GB)
Title: Improvements in or relating to superheterodyne receivers
IPC: H04B15/06
Filed: 1961-12-22
Abstract: 979,208. Frequency changing circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 22, 1961 [Dec. 28, 1960], No. 46048/61. Headings H3F and H3T. In a self-oscillating frequency changer in which the local oscillator frequency is determined by a cavity resonator 1 and the incoming frequency is selected by a cavity resonator 10, radiation from the local oscillator is minimized by provision of a pair of auxiliary coupling loops 21, 22 between the two resonators. As shown, the triode 7 is used as a Colpitts oscillator tuned by a conductor 2 and capacitors 3, 5 contained in cavity resonator 1. The input frequency from a pre-amplifier or aerial 19 is selected by cavity resonator 10, tuned by a conductor 11 and capacitors 12, 14, and coupled by a loop 15 to the self-oscillating mixer valve 7. Radiation of energy at the local oscillator frequency from the loop 15 is neutralized by antiphased transmission via a pair of coupling loops 21, 22. Loops 15, 22 may be twisted together. The loops 21, 22 may be completed by stray capacitance 23, 24. Valve 7 may be replaced by a semiconductor device.
Patent GB-1029488-A (GB)
Title: Colour photography
Inventor: NEALE DENIS MANKTELOW
IPC: G03B27/73
Filed: 1963-11-21
Abstract: 1,029,488. Photographic colour printing. ILFORD Ltd. Nov 11,1964 [Nov 21,1963],No. 46068/63. Heading G2A. In printing from colour transparencies, the transparency is illuminated by one spectral waveband and a preliminary assessment made photoelectrically of the light passing, initiating printing using a second spectral waveband with said first band, assessing the time and intensity integral until a predetermined value is reached, and repeating for a third spectral band with said first band. The arrangement is particularly suitable for printing processes in which the exposure time to blue light is approximately twice the exposure time to red or green light, so that the blue light exposure can be effected simultaneously with the others. As shown, light from a source 1 passes through a condenser lens 2, the colour negative 3, an objective lens 4 and and a half-silvered mirror 15 to the print material 5, and can be cut off by a shutter 6. Light from mirror 15 is reflected down to a photocell 17, and is utilised to assess and control the exposures by means of the electrical circuit of Fig. 2 (not shown). Initially, on pressing the starting switch, the arrangement is as in Fig. 1, with the beam interrupted by shutter 6, and the light passing through magenta filter 11, and reflected down through magenta filter 20 and blue filter 21 to cell 17. The light intensity from lamp 1 is gradually increased by a motor-driven variable transformer 24 until a first trigger tube V 1  fires, after which it remains constant. The firing of this tube is controlled by the intensity of blue light received by cell 17. As the first tube fires, the shutter opens, and the print material 5 is exposed to blue and red light passed by magenta filter 11. At the same time solenoid 18 is energized to substitute yellow filter 22 for blue filter 21. Thus only red light can now reach cell 17. The red light is intergrated to build up a voltage that eventually fires a second trigger tube (V 2 ). This causes the substitution of cyan filter 12 for magenta filter 11, also of green filter 23 for magenta filter 20. At this stage, blue + green light reaches the material 5, and only green light can reach cell 17. The green light is integrated to build up a voltage that eventually fires a third trigger tube (V 3 ). This causes blue filter 13 to move into the light path, so terminating the exposure of material 5 to the green component, leaving blue only. A fourth trigger tube (V 4 ) fires when sufficient blue light has passed, moving yellow yellow filter 14 into the light path to terminate exposure to blue light. Transformer 24 is also operated to reduce the energization of lamp 1 to zero again. If the negative is abnormally dense, so that full power on lamp 1 fails to fire the first tube (V 1 ), the circuit automatically operates a compensating and adjusting arrangement.
Patent GB-1082619-A (GB)
Title: Wide-band signal-translating channel
Inventor: JOHNSON WAYNE ROYAL
IPC: H04N5/21
Filed: 1965-11-01
Abstract: 1,082,619. Pre-emphasis of wide band signals; limiters; pulse shaping. WINSTON RESEARCH CORPORATION. Nov. 1, 1965, No. 46127/65. Headings H3T and H4R. A pre-emphasis circuit, e.g. for use in a frequency modulation system or in magnetic recording, comprises, Fig. 2, a circuit consisting of resistors 102 and 106 and capacitor 104, providing the normal accentuation of high frequencies, followed by an amplitude sensitive integrator which attenuates large amplitude signals of high frequency and comprises the resistor 108, capacitors 112 and 114 and oppositely poled diodes 116 and 118. At the receiver a complementary network is used, Fig. 5, in which the amplitude dependent highfrequency emphasis circuit complementing the amplitude sensitive integrator comprises resistors 302 and 322, capacitor 320, and diodes 326 and 328, and the high-frequency de-emphasis, complementing the accentuation of highfrequencies at the transmitter, comprises capacitor 306 and resistor 303. The capacitor 330 provides neutralization for the capacitance of the diodes 326 and 328. An alternative form of network, Fig. 6 (not shown), has the highfrequency emphasis circuit connected across a negative feedback resistor in the emitter of a transistor amplifier stage with the normal deemphasis components connected in the collector circuit.
Patent GB-1440480-A (GB)
Title: Dispensers
IPC: B65D83/02
Filed: 1973-10-03
Abstract: 1440480 Dispensing boxes BEGHIN-SAY 3 Oct 1973 46143/73 Heading B8P A box for dispensing cottonwool-tipped sticks comprises a cylindrical receptacle having an inwardly convex base 1e and an open top and a cover 2 that engages over the receptacle with slight friction and can be rotated to bring an aperture 2c, 2d into register with a similar aperture in the receptacle to enable a stick to be removed therethrough. The box may be moulded in plastics material which may be tinted and may be transparent. Marks or conformations may indicate when the openings are in register. The cover may be retained by a bead 2b engaging a rib 1b on the receptacle. The registering opening may be triangular.
Patent GB-1276370-A (GB)
Title: Apparatus for printing or dyeing sheet materials
Inventor: BILLIET JAN MARIA GODFRIED REN
IPC: B41M1/12
Filed: 1969-09-19
Abstract: 1276370 Screen printing apparatus J M G R BILLIET 19 Sept 1969 [25 Sept 1968 12 Sept 1969] 46368/69 Heading B6C Textiles 1 such as carpets are screen printed or dyed whilst passing through an apparatus where a rotating cylinder 2 located within an endless band stencil 4 presses the textile against a support, the ink or dye for the printing or dyeing being supplied to the nip between the cylinder and the stencil from a funnel-shaped reservoir 12. In Fig. 1 the support comprises a second stencil, ink reservoir and cylinder such that the textile material 1 is printed or dyed on both sides simultaneously. Multicolour printing is effected by passing the material 1 through a succession of printing stations utilizing the apparatus of Fig. 1. The upper and lower colour reservoirs are connected by a conduit 17 as shown in Fig. 3.
Patent GB-1031309-A (GB)
Title: Apparatus for growing crops on sea areas
IPC: A01G31/02
Filed: 1964-11-17
Abstract: 1,031,309. Vessels for agricultural purposes. A. P. PEDRICK. Nov. 17, 1964, No. 46709/64. Heading B7A. [Also in Division A1] Plants are grown on sea areas in pans supported on a network of buoyancy cylinders which is towed out to sea by a radio-controlled craft. A series of closely-spaced chains or rods may extend downwardly from the cylinders, the outermost of which may be provided with wave shields. Each pan has a false bottom which is either perforated or formed by a water-permeable membrane and a lower base joined to the false bottom by flexible members.
Patent GB-1359334-A (GB)
Title: Connector
IPC: H01R13/115
Filed: 1971-10-07
Abstract: 1359334 Two-part couplings THOMAS & BETTS CORP 7 Oct 1971 [7 Oct 1970] 46747/71 Heading H2E A resilient socket comprises a base 22, side walls 24, 24<SP>1</SP>, and fingers 26, 261 comprising horizontal portions 28, 281 and portions 30, 30<SP>1</SP> folded at an acute angle back towards the sidewalls. The portions 28, 28<SP>1</SP> and 30, 30<SP>1</SP> may be joined directly as shown or via additional straight portions or curved portions (Figs. 3 and 4, not shown). A flat tab is received between the base and the sharpened edges 33, 33<SP>1</SP> of the fingers. When the tab is inserted, the socket is stated to bend at discrete flexing zones at the junctures 38, 40, 42 &c. between the straight portions. The base may have tongues 88, 88<SP>1</SP> (Fig. 10), ridges (84, 841, Figs. 7 and 8, not shown) or bumps (86, 86<SP>1</SP>, Fig. 11, not shown) to modify the contact forces and provide wiping action. Projections 110 on the side walls may define the tab position. A projection 94 on the base may engage a dimple in the tab to lock it in position. A wire-crimping portion 104 or a spade, ring or fork tongue terminal to engage a stud may be provided and may be insulated.
Patent GB-1373441-A (GB)
Title: Brick production
IPC: C04B33/138
Filed: 1972-10-11
Abstract: 1373441 Red mud bricks GIULINI GmbH Gebr 11 Oct 1972 [12 Oct 1971] 46931/72 Addition to 1354807 Heading C1J Bricks are produced by mixing filter-moist red mud with 5-30 wt. per cent particulate water-absorbing material, mixing the resultant mixture with clay to form a mixture containing 50-92 wt. per cent (based on the dry weight of the mixture), of red mud and shaping the mixture to form brick blanks which are then dried and fired. The water-absorbing material may be cork (Example 1), peat, sawdust, fluedust (Example 3), coaldust, paper, textile waste, bentonite, silica gel, alumina gel, or a dry or substantially dry red mud (Example 2). Particle size details for the water-absorbing material are given.