baber/WOPTO huggingface dataset:
Patent GB-913068-A (GB)
Title: Recording and playback head for magnetic tapes
IPC: G11B5/17
Filed: 1961-07-12
Abstract: 913,068. Magnetic recording &c. heads. MICHELSON, C. July 12, 1961 [July 18, 1960], No. 25263/61. Class 40 (2). [Also in Group XXII] An iron-freed record/play-back head for magnetic tape, shown diagrammatically only in Figs. 1 and 2, has a pair of L-shaped plates 3, 3<SP>1</SP> connected to the end-plates 8, 8<SP>1</SP> of a cap member 6, so as to present to the tape the formation, Fig. 2, in which record or play-back currents follow the paths A, B, 6, E, F and C, C<SP>1</SP> is the effective recording gap-space. The head is constructed according to the successive steps 5a to 5e, by depositing alternate layers of metal (shaded) and insulator (unshaded) on to an insulated base-plate 17 by vaporizing, chemical precipitation or painting through appropriate masks. A simpler assymmetric embodiment comprises effectively half of Fig. 5e to one or other side of the space 29, connection being made in terms of Fig. 1 to e.g. 5 and 3.
Patent GB-172391-A (GB)
Title: Improvements in or relating to systems and apparatus for converting alternating electric current into direct current
IPC: H02M7/40
Filed: 1920-09-02
Abstract: 172,391. Price, W. A. Sept. 2, 1920. Electrolytic cells, arrangements of; commutator switching-arrangements.-In a system for converting alternating current into direct current, in which each alternating-current lead is connected to the anode and cathode of a pair of valves, the remaining cathode and anode of each pair being connected respectively to the directcurrent leads, means are provided for alternately short-circuiting the valves synchronously with the alternating current. In the arrangement shown, three-phase current is supplied to the terminals A, B, C through regulating transformers T<1> - - T<3> as shown. Each terminal is connected to the anode V<1> and cathode V<2> of a pair of electrolytic valves, the remaining cathodes and anodes of the valves being connected to the direct-current leads D<2>, D<2> through inductances L. The valves are short-circuited during the time when they would otherwist carry current by means of commutators S<1>, S<2>, driven by a synchronous motor.
Patent GB-216771-A (GB)
Title: Improvements in the manufacture of porous bricks, blocks, slabs and the like
IPC: C04B38/06
Filed: 1923-10-13
Abstract: 216,771. Macdermott, J. B., and Mc- Laren, D. A. Oct. 13, 1923. Porous plastic compositions.-Porous bricks, blocks, and slabs for heat- and sound-insulating purposes are produced from a mixture of black peat and diatomaceous earth with sufficient liquid to render the mass plastic. The mixture is moulded, dried, and heated to 700-800‹ F. Suitable proportions of the ingredients are 1 part of peat and 3 parts of diatomaceous earth.
Patent GB-252602-A (GB)
Title: An improved riveting machine
IPC: B21J15/26
Filed: 1925-10-13
Abstract: 252,602. Bloomer, M. Oct. 13, 1925. Riveting.-A riveting- machine, particularly for riveting roller-chains, comprises a vertical standard 1 having integral bored arms 1<d>, 1<b> in which reciprocates a loaded tup 3 actuated against spring pressure by a power-driven threearm cam 11. A plate 13, adjustably mounted on the standard has splayed ends 13a to act as shock absorbers. A lever 8 may be actuated by a treadle &c. to lift the trip clear of the cam. The machine is provided with a detachable anvil 1<d> and with a work-positioning device 2.
Patent GB-1274759-A (GB)
Title: Heterocyclic hydrazines, amides and lactams and their use in the enhancement of resistance of olefin polymers to copper-catalyzed oxidative degradation
IPC: C08K5/3415
Filed: 1969-05-20
Abstract: 1,274,759. Heterocyclic amides; lactam and acid hydrazides. ARGUS CHEMICAL CORP. 20 May, 1969 [30 May, 1968], No. 25579/69. Heading C2C. [Also in Division C3] Heterocyclic hydrazines, amides and lactams of the general formula in which the group represents a pyrrolidine, pyrrole 1,2,4-triazole, benzimidazole, benzothiazole, thiazole, or pyrazole ring and Z is selected from (1) in which R 1  is hydrogen, aryl or where R 2  is -R 4 SH, or a group of the formulµ where R 3  is C 1-18  alkyl, R 4  is C 1-6  alkylene, a, b and d or 0, 1 or 2 and c is 0 or 1, X is oxygen or sulphur, (2) where R 5  is a ring or -N = CHR 6 , where R 6  is hydroxyaryl, or (3) groups of the formulµ a ring of the formula or a fused ring of the formula where R 7  is hydrogen and R 8  alkoxy, are prepared (1) by condensing the heterocyclic acid with hydrazine or an aryl hydrazine and reacting the resulting acid hydrazides, if required, with, e.g., carbon disulphide, a thiodialkanoic acid, thioglycolic acid, an acetoacetate or an alkylene - bis - thioglycolate, (2) reacting the heterocyclic carboxylic esters with a heterocyclic amine to obtain the amides or condensing the acid hydrazides with hydroxyarylaldehydes, and (3) heating diesters of heterocyclic-2- succinates with hydrazine to obtain the acyclic or cyclic hydrazides of the succinates or subjecting the heterocyclic acids to intermolecular condensation in the presence of POCl 3 . Examples A-V relate to the preparation of specific compounds which are used in the stabilizaton of polyolefins (see Division C3).
Patent GB-653892-A (GB)
Title: Cargo aircraft
IPC: B64C39/02
Filed: 1948-10-01
Abstract: 653,892. Cargo aircraft. DEHN, S. G. (Lockheed Aircraft Corporation). Oct. 1, 1948, No. 25653. [Class 4] [Also in Group XXXII] An aircraft having a wing structure is provided with a cargo compartment detachably combined with the aircraft, including dual purpose fastening means arranged to provide for both, the securing of said cargo compartment to the lower surface of the aircraft in longitudinally variable relation relative to a given point of said wing structure to compensate for unbalanced loading of said cargo compartment, and the maintenance of said cargo compartment in any desired position of longitudinally variable relationship. The aircraft, comprising a wing 11, tail booms 23, nacelles 14 extended into fairings 16, and a pilot's compartment 24 supports a detachable container 10. The container which is of box section faired at each end with a dome 28 is provided with partitions which may be hinged downwardly to act as loading ramps, and is suspended from the underside of the wing 11 by standard bomb shackles arranged to engage pins selected from a number of such pins located longitudinally on the top of the container to enable the latter to be so positioned that its longitudinal centre of gravity position coincides with the centre of pressure point of the wing. The circuit is provided with main wheels 15 housed within the fairings 16 and a nose wheel 25 is attached to the container 10. Additional wheels 35, which are normally retracted within the fairings 16, are provided to support the aircraft when the container 10 and its wheel 25 are removed. Separate wheels are attached to the container so that, with the wheel 25, they may support the container when it is towed from the aircraft. The shackles which secure the container to the aircraft may be provided with manual and/or electrical release mechanism.
Patent GB-257068-A (GB)
Abstract: 257,068. Weber, G. E. July 17, 1925. Addition to 250,682. Tickets, issuing.-In a ticket-issuing machine according to the parent Specification, means are provided for feeding the severed tickets along a slideway 51 to a pocket 55 where a number of tickets may be stacked at the delivery mouth of the machine. The slideway is grooved and the tickets are picked up by a reciprocating finger 57 which is mounted on a lever 59 pivoted at 60 to a bar 34 attached to the operating bar 16. A spring 61 is arranged between the toe 62 of the lever and a part 19 of the bar. Feeding pawl 31 for the ticket strip 5, levers 35, 38, 42 for operating the severing knife 6 and counter 12, full-stroke mechanism 17, 18, 23, and a bolt 49 for locking the machine when the ticket strip is exhausted are provided as in the parent Specification.
Patent GB-724376-A (GB)
Title: Improvements in and relating to clothes drying machines
IPC: D06F58/24
Filed: 1953-09-17
Abstract: 724,376. Rotary clothes-drying apparatus. GENERAL ELECTRIC CO. Sept. 17, 1953 [Sept. 18, 1952], No. 25731/53. Class 34 (2). [Also in Group XXIX]. A tumbler drier with perforate drums 13 '  enclosed by a casing 12 and having a spray-condenser for removing lint and moisture from the drying air has means for introducing water into the sump 39 to form a pool 40 therein, a rotatably mounted impeller 46 in the sump to produce a finely divided spray of water to scrub the air and agitate the pool to retain the lint in suspension by its rotation and a pump 41 to discharge water and entrained lint from the sump. The impeller 46, carried on a shaft 43 has helical vanes 47 and the shaft 43 which is also the pump operating shaft carries an impeller' 49 which delivers water and lint into the casing of the pump 41. Water is supplied through an inlet fixture including a strainer, flow regulator and solenoid operated control valve to a jet nozzle from which it is projected into the condensing chamber 36 below a baffle 31. In a modification (Fig. 5) the operating shaft 143 driving the impeller 146 is vertical and the pump 142 is arranged below the central portion of the sump 139.
Patent GB-298358-A (GB)
Title: Improvements in and relating to tip trucks and like vehicles
IPC: B60P1/24
Filed: 1927-09-29
Abstract: 298,358. Fox, G. E., and Hayes, H. G. Sept. 29, 1927. Tipping carts are arranged so that the body is supported by arcuate members so located that their centres correspond substantially with the centre of gravity of the body when loaded. Fig. 1 shows a vehicle body 1 having a pair of arcuate rails 3 riding on rollers 4, 5 mounted on the chassis the centre of curvature of the rails being adjacent to the centre of gravity of the body when loaded. A catch 10 may be provided. Fig. 3 shows such a vehicle in which the rollers are mounted on a turntable 23, 25. The catch for securing the body in normal position may comprise a rod carried by spring arms the rod being adapted to engage in cam-like notches on the chassis.in cam-like notches on the
Patent GB-1425051-A (GB)
Title: X-ray image intensifier tube and input screen therefor
IPC: H01J29/38
Filed: 1973-05-30
Abstract: 1425051 Luminescent screens GENERAL ELECTRIC CO 30 May 1973 [30 May 1972] 25772/73 Heading C4 [Also in Division H1] An X-ray image intensifier input screen comprises a substrate 13, X-ray sensitive phosphor 11, photo-cathode 12 (e.g. GaAs : Cs; S11 or S20 type, barrier layer 60 (e.g. In 2 O 3 , slightly chemically reduced TiO 2 , CuI or ZnO) chemically compatible with the phosphor and p/c material and providing chemical isolation between the two, the barrier thickness being 0À5 to 3À0 microns so as to provide smoothing of surface irregularities on the phosphor layer and permitting a more uniform thickness of p/c film. The barrier layer has a resistance of 10 to 10<SP>6</SP> #/ sq. (e.g. 10<SP>3</SP> #/sq.) to provide sufficient conductance to electron replenish the p/c film and so reduces electron optic image distortion caused  by the high potential drops laterally across the p/c. The phosphor may be granular ZnCdS or transparent CsI, the thickness of the layer or multi-layers being 5 to 15 mms., or thicker with a barrier layer. P/c film 12 may be 50 to 520 Š thick and of multi-alkali type, ring (14) (Fig. 1, not shown) supplying the potential and supporting the assembly. The assembly may be directly on the faceplate, an Al electrode may be peripheral and a continuous Al film may reflect backward phosphor emissions. Substrate (13) may be glass or low At. No. metal, e.g. Al. The first embodiment, Fig. 7, may optionally include electrically non-conductive barrier layer 30. Fig. 8 (not shown) is as the prior art screen of Fig. 4 (not shown), but with a 1 to 3 Á barrier layer. If the cracks extend to the Al substrate, it may not be necessary to electrically connect layer 60 edges and the ring electrode. Alternatively, the substrate may be glass and also insulating barrier (30) may be provided. Fig. 9 (not shown) includes columnar, honeycomb or other symmetrical phosphor structures providing light pipe effects. Structures may be square hexagonal or circular cross-section with a 2 : 1 to 10 : 1 height : width ratio. The p/c layer bridges narrow but not wider gaps. Layer 60 may be 1 to 3 Á. Fig. 10 (not shown) utilizes granular phosphors with no or only limited binder. Fig. 2 (not shown) is a known screen with >0À3 mm. phosphor grains (e.g. ZnCdS: Ag or Gd oxysulphide : Tb), silicone resin coated, p/c layer thicknesses being exemplified, Fig. 3 (not shown) includes conventional 0À1 to 1 Á aluminium oxide or silicon oxide layer (30). The silicone resin of the phosphor layer being in larger quantities than the Fig. 2 screen, Fig. 4 (not shown) a known evaporated CsI : Tl phosphor (11) with undesired cracks. The In 2 O 3  may be evaporated at low O pressure (e.g. 10 Á), then fully oxidized in air at 200‹ C. or may be evaporated on to a 200‹ to 300‹ C. substrate in 50 to 150 microns of oxygen. Fig. 5 (not shown) illustrates wavelength responses. In Fig. 6 (not shown), layer 60 slightly overlaps substrate 13 edges to contact electrode (14), or an edge conductive film may be provided. Examination of body organs is exemplified.
Patent GB-317244-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/20
Filed: 1929-09-07
Abstract: 317,244. Andrews, E. S., (Simplex Piston Ring Co. of America, Inc.). Sept. 7, 1928. Pistons, packing.-In an oil-scraper ring in which axial resilience is obtained by means of circumferential slots, passage of oil to the back of the ring is secured by wide slots G<2>, Fig. 1, which do not contract under axial compression. The axial resilience is provided by narrow slots G<3>, with narrow upper bars G<1>, the axial yield being limited by the width of the slots G<3>. The packing is expanded by a wave spring J, Fig. 1, which is held in a raised position by means of a bevelled flange H<5>. In a modification, the slots H<1>, H<2>, Fig. 4, in both rows are wide and axial yield is limited by stops H<4>. Specification 318,010 is referred to.
Patent GB-654013-A (GB)
Title: Improved method of and means for supplying water to growing plants
IPC: A01G27/04
Filed: 1948-10-04
Abstract: 654,013. Treatment of growing plants. RANKIN, A. M. Oct. 4, 1948, Nos. 25855/48 and 1432/49. [Class 6(ii)] A flower-pot or basket support 20 carries a wick or like porous or absorbent material 21 conveying liquid from a container 23 to the soil in the pot. The support may stand on the base of the container or extend over its edge tc form a lid or closure. A plurality of wicks for a corresponding number of pots may project up through such a closure. Wick-carrying supports for pots may bridge the troughs of a corrugated surface, liquid from a tank being supplied to the troughs in controlled quantities. The wicks may be supported in metal or rubber sleeves.
Patent GB-934509-A (GB)
Title: Drive mechanism for an electrically driven time-keeper
IPC: G04C3/06
Filed: 1961-07-18
Abstract: 934,509. Clocks and watches. UNITED STATES TIME CORPORATION. July 18, 1961 [July 28, 1960], No. 25962/61. Class 139. Drive mechanism for an electrically driven timepiece comprises an oscillatory balance 60 carrying a driving coil 61 co-operating with at least one fixed magnet and stepping on a toothed wheel 67 of the motionwork, means for arresting this wheel in an indexed position between each step comprising magnetizable teeth on the wheel and a magnetizable detent member 69, 71 connected with the magnet, this detent member being arranged so that a portion 71 thereof establishes a flux path across a portion of the teeth of the toothed wheel, the path being substantially parallel to the axis of the toothed wheel. As shown, two magnets 62, 63 are fixed to a magnetizable bridge 64 which is extended to form the member 69, 71. The magnets may be of circular or oval cross-section. In another embodiment three magnets are used, and the extension of the magnetizable bridge forming the detent is cut out in the bridge by slots so that it can readily be bent into an adjusted position. In a further embodiment, the teeth of the wheel 67 are embraced on opposite sides by a nose-piece of the magnet and by the detent respectively. This nose-piece may be formed on an angularly adjustable ring on the magnet. In another embodiment, one portion of a magnet having multiple poles carries a fixed nose-piece connected with one of the poles and spaced opposite to the detent which is adjustably held by a rivet to the magnetizable bridge, the wheel teeth traversing the gap between these parts. In a modification, the portion 71 of the detent member is divided to form two parts corresponding to the tooth pitch of the wheel 67.
Patent GB-223053-A (GB)
Title: Improvements in or relating to night shooting sights and apparatus
IPC: F41G1/35
Filed: 1923-10-19
Abstract: 223,053. Lathbury, E. B. Oct. 19, 1923. Sights; sighting-accessories.-Apparatus for use in shooting at night comprises a lamp for illuminating the foresight and a second lamp for illuminating the object aimed at. both lamps being controlled by a single switch so constructed that the first movement closes the circuit of the first lamp. and a further movement in the same direction closes the circuit of the second. As shown in Fig 8, the switch, which is clamped to the gun, comprises a body part 15 and a slide 24 carrying two contact strips 26, 27 adapted to bridge pairs of spring contact plugs 29, 31, respectively, to close the lamp circuits. The lamp 2, Fig. 4, for illuminating the foresight is enclosed in an adjustable casing 1 pierced with a small lateral hole through which a ray of light passes to the foresight.
Patent GB-1061478-A (GB)
Title: Improvements relating to gas turbine engines having auxiliary units
Inventor: BRUDER WERNER
IPC: F02C3/073
Filed: 1964-06-24
Abstract: 1,061,478. Centrifugal separators. DAIMLER-BENZ A.G. June 24, 1964, No. 26171/64. Heading B2P. [Also in Divisions F1 and F2] A lubrication system for a gas turbine engine (see Division F1) includes a centrifuge 32, Fig. 1, which separates air from the lubricant. The lubricant and air mixture is delivered to the centrifuge through a hollow shaft 30 driven by the turbine and driving the hollow shaft 74 of the centrifuge. Partial separation occurs in the shaft 30 and the denser fluid passes into the centrifuge through an inlet 78, whereas the less dense fluid at the centre of the stream passes into the centrifuge through an inlet 79. The centrifuge comprises a number of coaxial drums 80 fitted into one another. The separated lubricant is delivered to a storage tank (not shown) through an outlet pipe 67. The separated air 48' passes through a radial bore 81, Fig. 4, and a number of transverse bores 83 into the hollow shaft 74 and out through an outlet 84.
Patent GB-650356-A (GB)
Title: Improvements in or relating to brief cases and portfolios
IPC: A45C13/02
Filed: 1948-10-07
Abstract: 650,356. Brief-cases; portfolios. GARSTIN & CO., Ltd., A., and WERFF, H. H. J. VAN DER. Oct. 7, 1948, No. 26203. [Class 133] On the inner face of the front or back wall 10 or 11, or on one of the intermediate partitions 12, 13 of a portfolio or brief-case is fitted a pocket the upper edge of which is substantially level with the top edge of said wall or partition, whilst a leather strap or tape 20 is attached to one wall of the pocket intermediate the ends of the pocket, extends downwardly and then upwardly adjacent the opposite wall of the pocket to form a bend in which a number of visiting cards can be supported, these cards being movable, from a position in which they are wholly accommodated in the pocket to a position in which their upper parts project above the pocket, by pulling on the free end of the strap or tape. The pocket may be formed by a channel-shaped piece of leather 18 the side flanges of which are sewn to the wall or partition. The strap or tape may be fixed by the stud portion 21 of a press-stud fastener, the socket portion 22 of which is carried by the free end of the strap or tape so that the latter may enclose the cards.
Patent GB-504334-A (GB)
Title: Improvements in hair-waving apparatus
IPC: A45D2/38
Filed: 1938-09-09
Abstract: 504,334. Hair - waving apparatus. WERNER, A., and CARLSSON, S. Sept. 9, 1938, No. 26329. [Class 131] Hair is waved by drawing it between spring- pressed rollers 8, 9 across a sharp metal edge 1 carried by a wedge 2. The rollers, which are absorbent and-soaked with a wetting-agent, are journalled in slots 10 in arms 5, 6, stops 12 limiting the inward movement of the arms. The rollers and /or the wedge 2 may be fitted with heating devices. In a modification, Figs. 3 and 4, parallel-moving jaws 15, 16 are provided with ribs 17, 18 between which absorbent pads 19, 20 are housed, the hair 13 being pressed against a sharp edge 1 on the jaw 16 by means of a pad 14 on the jaw 15. The pads may be provided with heating devices, and the upper jaw carries a container 21 for cooling liquid which is fed to a pad 23.
Patent GB-532975-A (GB)
Title: Process for proofing animal fibres against moth larvae, mold and rotting
Filed: 1939-09-21
Abstract: 532,975. Proofing permeable materials. LOWE, W. Sept. 21, 1939, No. 26333. [Class 140] Animal fibres are proofed against moth larvae mould and rotting by treatment with a solution of a mixture of chromium fluaride and sodium antimony fluoride. Preferably the mixture is used in amounts equivalent to 1.25 per cent. by weight of the material to be proofed. A convenient solution contains 1“ oz. per gallon. Dyed materials may be fixed with bichromate and subsequently proofed, or fixing and proofing may be carried out simultaneously by adding the bichromate to the proofing solution. Specifications 413,445, 413,529 and 454,458 are referred to.
Patent GB-1292754-A (GB)
Title: Improvements in or relating to liquid chromatography
Inventor: DIJK JOHANNES HENDRINUS VAN
IPC: G01N30/84
Filed: 1970-06-01
Abstract: 1292754 Liquid chromatography analysis; analysing column effluent PYE Ltd 21 June 1971 [1 June 1970] 26398/70 Heading B1X Liquid chromatography apparatus similar to that described in Specifications 1,104,788 and 998,107 is provided with an atomiser at the column outlet so that column effluent is sprayed onto a moving carrier for subsequent evaporation of solvent, pyrolysis of solute, and analysis thereof by, e.g. an argon or flame ionisation detector or an electron captive detector. The atomiser may be heated at its outlet as may the incoming atomising air. The column may also be heated. In the apparatus shown, the column effluent passes through capillary tube 11 and atomised effluent is directed on to moving wire 10.
Patent GB-946030-A (GB)
Title: Improvements in or relating to glass compositions and glass-to-metal seals
Inventor: OLDFIELD LUCY FLORENCE
IPC: C03C3/108
Filed: 1961-07-20
Abstract: A glass for sealing directly to tungsten or to other materials with similar thermal expansion characteristics, consists of, in percentages by weight, SiO2 72.5-77.5; B2O3 14.0-16.5; PbO 4.0-7.0; K2O 6.5-7.5; Al2O3 0-2.5; BaO or SrO or ZnO 0-1; with refining agent (KCl, Sb2O5 or As2O3) 0.1-0.3, the ratio of SiO2 to B2O3 being in the range 4.5: 1 to 5.5 : 1. The glass may be used for sealing in of tungsten rods, either to glass as above or a bead of the glass between the rod and the normal borosilicate glass. The tungsten rod may be coated with a very thin film of alkali-free high silica glass before sealing. Specifications 583,208 and 597,292 are referred to.