baber/WOPTO huggingface dataset:
Patent GB-958554-A (GB)
Title: Scraper conveyor suitable for use at a coal face
IPC: B65G19/18
Filed: 1962-07-30
Abstract: 958,554. Mineral-mining apparatus. STAMICARBON N.V. July 30, 1962 [March 21, 1962], No. 29274/62. Heading E1F. [Also in Division B8] The trough sections of a scraper conveyer have sloping wall sections 3 attached to them by bolts 4, 5 and brackets 6, and each wall section has a tube 12 for guiding a coal plough carriage 10 along the walls by means of lugs 11 which engage the tube. The plough body 8 is rockable on the carriage 10 about a boss 13 and is movable along the coal face by a chain 9, 9<SP>1</SP>. A strip 16 prevents coal getting between the sloping wall 3 and the conveyer wall 7. An upward extension 15 is provided on the goaf side wall 7<SP>1</SP> and allows loading of the conveyer to the height a.
Patent GB-237484-A (GB)
Title: Improvements in or relating to stencil sheets
IPC: B41N1/24
Filed: 1924-12-06
Abstract: 237,484. Rand, J. H. Dec. 6, 1924. Stencils. - In a stencil of the kind comprising a backing perforated near each end and a stencilsheet attached t'o the backing at each end, the backing I is unattached to the stencil-sheet S intermediate the perforations L, so that part of the backing may be removed readily, and portions E, E<1> of the backing which are provided with slots O for attachment to the stencilling machine extend beyond each end of the sheet S. In use, the intermediate portion of the backing is detached from one end E or E<1> and is moistened, the stencil is then cut on a typewriter, and the intermediate portion is wholly detached. Specification 127,428 is referred to.
Patent GB-415601-A (GB)
Title: Improvements in sealing wax substitutes
IPC: C09K3/10
Filed: 1933-10-23
Abstract: A cold sealing material consists of acetyl cellulose soaked, or dissolved to form a concentrated solution, in a liquid paraffin chloride, preferably methylene chloride.  A small proportion of alcohol may be added, also a filler, a softening agent, and a fat or resin.  In an example, 50 parts cellulose acetate, 20 parts of plasticizer such as phenyl phosphate or methyl acetanilide, 10 parts of stearine and resin, 25 parts of a filler such as asbestos, and 120 parts of methylene chloride are kneaded together.  The product is suitable for packaging in collapsable tubes.
Patent GB-265711-A (GB)
Title: Improvements in or relating to the manufacture of evacuated vessels such as thermionic valves
IPC: H01J9/40
Filed: 1925-11-20
Abstract: 265,711. General Electric Co., Ltd., and Duke, S. M. Nov. 20, 1925. Vacuum tubes.- A method of sealing off the wide vitreous exhaust tube of an evacuated vessel such as a thermionic valve, consists in inserting a support, such as a copper thimble, in the tube at the place at which the tube is to be sealed off, the tube being then fused and sealed close to the support. The vessel 1 is exhausted through the tube 2 by means of a pump connected at 3, and the thimble 6 is moved by a piece of iron 7 and a magnet, not shown, along the tube until the end rests against a constriction 8. The iron is withdrawn and the tube fused about the rounded end of the thimble.
Patent GB-1193113-A (GB)
Title: Improvements in and relating to Transistors.
IPC: H01L23/485
Filed: 1967-06-26
Abstract: 1,193,113. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 June, 1967 [29 June, 1966], No. 29402/67. Heading H1K. The contact 51 to the emitter zone 43 of a planar transistor passes through an aperture 50 in an insulating layer 45 and extends over that layer to provide a substantial area within which a lead-out conductor 52 may be attached. This area it to one side of the emitter zone and the extent of its spread over the insulation is such that it nowhere extends beyond the line of contact of the collector-base junction 46 with the semi-conductor surface 44. Thus the extended contact 51 is insulated from the collector zone 41 by both the insulation 45 and the base zone 42. This arrangement minimizes the emitter-collector breakdown voltage, and so makes the transistor particularly suitable for grounded base operation. The base contact 54 also occupies an extended area wholly within the perimeter defined by the collector-base junction. It may, as shown, extend over the insulation in the same way as the emitter contact, or it may lie wholly within an extended area aperture in the insulation. The Specification includes a detailed description of a manufacturing process resulting in a transistor generally similar to that of Fig. 5, the various stages of the process being depicted in Figs. 7 to 16 (not shown). In a modified construction shown in plan in Fig. 17, the base zone perimeter 87 is dumb-bell shaped and the insulation contains two apertures 82 for contacting the base and one, 81, for contacting the emitter. The extended area emitter and base contacts, 83 and 84 respectively, interdigitate as shown.
Patent GB-318771-A (GB)
Title: Improvements in the art of manufacturing paper
IPC: D21G9/00
Filed: 1928-10-12
Abstract: 318,771. Happer, J. R. Oct. 12, 1928. Fourdrinier paper-machines. - Two or more separate sheets of paper are formed, dried, and finished while not adhering to one another on a machine comprising two or more Fourdrinier wires each followed by its own felt pressing rolls, and a common drying and finishing apparatus. The sheets 5<a>, 5<b>, Fig. 1, are formed on wires 1, 2 and pass on felts 4<a>, 4<b> through press rolls 3 to the common drying cylinders 6, the sheet 5<b> being supported on a conveyer 5<c>. From the drying cylinders 6 the sheets pass through calender rolls 7. The sheets may be wound separately or together. To finish the sheets equally on both sides they are calendered separately in the upper and lower halves of the stack of rolls 10, 11, Fig. 2.
Patent GB-1402430-A (GB)
Title: Cutting devices
IPC: H02P23/00
Filed: 1972-06-23
Abstract: 1402430 Fruit cutters F W LADLOW 20 June 1973 [23 June 1972 4 Jan 1973] 29422/72 Heading A4C An apparatus for cutting generally spherical fruit such as tomatoes &c. into two, so that the marginal edges of the tomato are castellated, comprises a plurality of angled blades 9 uniformly spaced round the fruit and means for moving the blades 9 radially inwards to pierce and cut the tomato into two. A plastics outer casing 1 has a central aperture 3 for locating a fruit to be cut, a raised gripping surface 2 and a skirt 1a. The underside of casing 1 incorporates a plurality of cam-tracks 5. A bladeholder 6 is located beneath the cam surface 4, and has housings 7 for five blades 9. Each blade has a spigot 10 extending through a slot 8 to engage a cam-track 5. The blades 9 are of angular form, with a point 9a at their inner end and a cutting edge tapering rearwardly from the point 9a. They are located on a base portion 11 having angular ridges 12 and a handle at surface 13. Rotation of casing 1, by means of the raised surface 2 with finger holds, will thus cause all blades 9 to move towards the centre of the fruit simultaneously. In an alternative form, Fig. 3 (not shown), the blades (24) are secured to spring-loaded shafts (25), mounted on a base (23) and pushed inwardly simultaneously or separately by hand, to cut the fruit (20). This latter embodiment is suitable for large fruit.
Patent GB-244077-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J19/34
Filed: 1925-11-21
Abstract: 244,077. British Thomson-Houston Co., Ltd., (Assignees of Prindle, R. B.). Dec. 5, 1924, [Convention date]. Caps. - The leads of the electrodes of a thermionic valve are connected within the container to ring-shaped insulated terminals of progressively decreasing diameter, arranged concentrically, and sealed to the container. In the valve shown in Fig. 2, one cathode terminal consists of a conical tube 22 sealed to a glass tube 51 which is sealed to an anode forming part of the container. The other cathode terminal consists of a conical tube 21 which is sealed at one end to a glass ring 19 sealed to the tube 22, and the other end to a glass member 6 on which is sealed a tube 1 carrying the terminal 2 for the grid. The terminals are thus arranged in the order of their potentials. Short cathode leads 29 are connected to longer leads 27 by pins mounted in a connector 28 secured by a bayonet fastening to a quartz insulator 40. The upper ends of the leads 27 are secured to insulated members 26 connected by flexible leads 25 of wire braid to copper tubes 23, 24, which are screwed to terminals 20 soldered inside the tubes 22, 21 and registering with terminals 17 soldered on the outside of the tubes. A lead 4, insulated from the cathode leads, is secured to the grid shield 12 and is screwed into an iron plug soldered to the seal 1. A sealing tube 50 is soldered to a flange 47 on the anode. The Specification, as open to inspection under Sect. 91, (3) (a) comprises also the use of such terminals in incandescent lamps. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1196956-A (GB)
Title: A Method and Apparatus for Fluidizing Activation of Particulate, Granular, Viscous and Similar Materials
IPC: B01F33/40
Filed: 1967-06-28
Abstract: 1,196,956. Pneumatic discharge of containers. KOCKUMS MEKANISKA VERKSTADS A.B. 28 June, 1967 [14 July, 1966], No. 29767/67. Headings B8A and B8E. Air is supplied to the space beneath an aeration floor 12 of a container 11 for granular or particulate material through a sound transmitter 14 preferably of a frequency of between 100 and 1000 c.p.s. Additional air may be supplied through a pipe 16. A sound detector may be mounted on the outside of the container, Fig. 2 (not shown), and connected to an indicator which is actuated when the container is substantially empty. In a further embodiment, Fig. 5, the sound transmitter 59 is mounted in the container and is arranged to blow air downwardly into the space 65 beneath a permeable floor 66, additional air being supplied through a pipe 67. The fluidized material flows through the space 63 beneath the air space 65 into the discharge duct 56. In a modification, Fig. 8, where the aeration floor is to support a substantial weight, the sandwich construction of floor is replaced by internally tapped sockets 81 welded in parallel rows to the bottom 80 of the container. Flat bars 82 are secured by screws to the sockets with adjacent edges mutually spaced to form slots 84. Air-permeable strips of material, such as felt, are clamped between the bars 82 and the bottom 80 and define spaces 86 into which sound modulated compressed air is introduced.
Patent GB-471017-A (GB)
Title: Method of, and means for, protecting shore and like works and fixed or floating structures from the destructive action of waves and tides
IPC: E02B3/06
Filed: 1936-11-03
Abstract: 471,017. Breakwaters. WHITMORE, J. Nov. 3. 1936, No. 29939. [Class 68 (ii)] [Also in Group XXXIII] Means for protecting shore and like works, or fixed or floating structures from the action of waves and tides comprises a series of cells into which the water flows and in which the columns of water are subjected to the cushioning action of the air compressed in the cells. The cells 2, Fig. 1, are preferably arranged in tiers, inclined, and with their open ends downward, each cell being staggered in relation to those of the tiers above and below. Vents 3 may be provided in some or all of the cells through which the air may escape and rise through the water entering the cell above, or the vents may communicate with the cells of the row above. Air under pressure may be introduced into the cells, e.g. those always submerged, from a compressor. Cells may be formed with a constriction 6, Fig. 7, or may be of increasing or decreasing cross-section from the mouth to the closed end. The cells may be made of concrete or of iron or steel, and may be constructed singly or in groups and built together in position, or built in situ as a whole.
Patent GB-602696-A (GB)
Title: Improvements relating to gas fires
IPC: F24C15/24
Filed: 1945-11-09
Abstract: 602,696. Incandescent gas fires. SOUTH METROPOLITAN GAS CO:, and CHANDLER, D. Nov. 9, 1945, No. 29978. [Class 126] In an incandescent gas fire having an upwardly tapering combustion chamber c between a refractory back a and a front fret b, the latter is formed of sections b<1> held in position by the engagement of rearwardly extending projections b<2> in vertical grooves a<1> in the back a, the grooves a<1> increasing in depth from the bottom upwardly. In the form shown, the fret sections b<1> are arranged in vertical rows and have projections b<3> on their upper face to engage in complementary recesses b<4> in the lower face of the section above. Specification 462,055 is referred to.
Patent GB-239752-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/22
Filed: 1924-12-13
Abstract: 239,752. Lyon, F. H. C. Dec. 13, 1924. Spectacles. - Non- metallic spectacle frames have the side pieces hinged to the frame about an axis displamd from the plane of the rims so that they lie closely against the rims when folded. This is effected by mounting the side pieces 13, 14 on a pivot 22 passing through a lug 20 of non-metallic material secured between the projecting portions 15, 16 of the rims 10, 11. The lug 20 is secured in place by screws 21 and extends away from the plane of the rim as shown. In a modification the lug 20 is secured in a recess at the end of the junction between the projecting portions 15, 16.
Patent GB-753642-A (GB)
Title: Improvements in or relating to apparatus for continuously recording the viscosity ofa fluid
Inventor: JONES JAMES MEREDITH
IPC: G01N11/08
Filed: 1954-10-19
Abstract: 753,642. Measuring viscosity. TEXACO DEVELOPMENT CORPORATION. Oct. 19, 1954, No. 30043/54. Class 106 (2). Apparatus for continuously recording the viscosity of a fluid as it is pumped through a line 10, comprises a pipe 11 for withdrawing a continuously flowing sample from the line, a calibrated tube 22, a pump 13 for forcing the sample through the tube, an indicator or recorder 25 for recording the pressure differential Pd, measured at 24, over the tube 22 and means for compensating on the recorder for variations in temperature of the sample. As shown, the sample passes through a cooler 12 and a heating coil 15 so that its temperature is nearly constant, the coil 15 being disposed in a heating bath 16 having a heating element 17 controlled by a temperature control element 18 operated by a thermocouple 20. The control element is pressure operated to open or close a valve 19 in the line from the heating element 17 and the pressure Pt at 18 is therefore proportional to temperature variations in the sample. This pressure is applied to a relay 30 whose output is of the appropriate magnitude and sign to enable it to be applied to bellows 27 so as to compensate the needle and recording pen 28, actuated by bellows 26 by the pressure Pd for temperature variations.
Patent GB-820067-A (GB)
Title: Improvements relating to electrical discharge devices and supports therefor
IPC: H01J21/36
Filed: 1955-10-21
Abstract: 820,067. Electric discharge tubes. GENERAL ELECTRIC CO. Oct. 21, 1955 [Oct. 22, 1954], No. 30121/55. Class 39(1). [Also in Group XXXVI] In an electric discharge tube and socket assembly, the tube envelope comprises alternate conducting and insulating annuli bonded together ; the conductive annuli, which have a smaller external diameter than the insulating annuli, act as electrode terminals, and engage each in a respective connector in the socket. The bonding process may be as described in Specifications 813,829 [Group XXXVI] and 820,066. The conductive parts may be of metals such as titanium, zirconium, hafnium, or thorium, which have a gettering effect. In the tube of Fig. 8, the metal envelope parts 63, 66, 69 act as respective terminals for electrodes 62, 65, 68. The cathode 71, which is of the type described in Specifications 820,065 and 820,068 [Group XXXVI] is connected to annulus 72 by a conducting film on the ceramic ring 70. The tube fits bodily into the socket as shown in Fig. 1. The socket comprises a number of metal plates 20, 21, 22, 23, preferably of sheet spring brass. These have respective U-shaped openings 29, 30, 31, 32 which grip the metal envelope parts 34, 35, 36, 37, and the plates are loosely retained in an insulating base 24, 25, 26. The U-shaped openings may have a narrowed entrance, to give a locking action on the tube. The plates may be extended away from the tube as parallel tuned lines, forming a unitary oscillator or tuned circuit structure. The grid plate 21 may be enlarged to act as a shield for grounded grid operation. Some of the metal rings may be of different sizes, with U-shaped plate openings to correspond, so that the tube cannot be incorrectly inserted.
Patent GB-855930-A (GB)
Title: Improvements relating to bedsteads
IPC: A61G7/012
Filed: 1956-10-04
Abstract: 855,930. Bedstead adjustments. EVANS & CO. Ltd., J. N., EVANS, J. K. N., and EVANS, D. K. L. N. Jan. 6, 1958 [Oct. 4, 1956; Jan. 4, 1958], Nos. 30227/56 and 384/58. Class 52(2) The lower ends 4, 5 of the head and foot frames of a bed are telescopically adjustable by centrally arranged screw and nut means 6, 7 having level gears enclosed in casings 10 and operable independently or in unison by a common shaft 12 and crank 11. Preferably the shaft is displaceable longitudinally by a lever 22 to engage squared parts thereon with squared axial bores in the bevel pinions.
Patent GB-646212-A (GB)
Title: Improvements in or relating to musical toys and the like
IPC: A63H5/00
Filed: 1947-11-15
Abstract: 646,212. Electrical musical instruments. CASCELLOID, Ltd., SENIOR, H., and BROWN, J. S. Nov. 15, 1947, No. 30374. [Class 88 (ii)] A musical toy consists of a number of wires or bus-bars 8 capable of being covered by a board 2 having holes 5, each of which guides a peg 9 into contact with a particular bus-bar to determine the note generated by a valve oscillator feeding a loud-speaker. The successive holes in the board may be arranged for playing a simple tune and may be arranged on a stave, tonic solfa chart or the like. The connections of the peg with the wires 8 are arranged to insert different condensers in the tuning circuit of the oscillator.
Patent GB-1428394-A (GB)
Title: Tea
IPC: A23F3/14
Filed: 1972-06-29
Abstract: 1428394 Making tea UNILEVER LTD 27 June 1973 [29 June 1972] 30412/72 Heading A2B A composite tea product comprising black leaf tea and hot water soluble solids of fermented tea is prepared by forming a mitxure of black-leaf tea and powdered hot-watersoluble solids of tea and wetting the mixture by spraying water on to it in an amount of from 2 to 15% by weight of the unwetted mixture whilst stirring the mixture, and then drying the mixture to produce the desired composite product. The weight ratio of black leaf tea to powdered hot-water-soluble solids of fermented tea is from 3:1 to 12:1. The unwetted mitxture may also contain a buffering agent, e.g. citric or ascorbic acid or their salts, which agent may be present in an amount up to 2% by weight of the total weight of tea. The composite tea product may be utilised in tea bags.
Patent GB-1467908-A (GB)
Title: Flame-resistant glass-fibre reinforced polytetramethylene terephthalte resin composition
IPC: C08L67/02
Filed: 1974-07-10
Abstract: 1467908 Flame retardant polytetramethylene terephthalate compositions MITSUBISHI RAYON CO Ltd 10 July 1974 [11 July 1973 30 April 1974] 30498/74 Headings C3R and C3B A flame retardant moulding composition comprises (i) polytetramethylene terephthalate having an intrinsic viscosity of 0À4 to 3À0 dl./g., (ii) glass fibres, (iii) antimony trioxide, (iv) a compound of the general formula wherein X is chlorine or bromine and R is a residue for connecting the ring structures to form a tetrahydrofuran, cyclopentane, cyclooctane, endomethylene cyclohexane or endomethylenehydroindan ring, and (v) an epoxy resin having a degree of halogenation of 10% by weight or more of the general formula wherein Y is chlorine or bromine, i, j, k and l are 1 to 4 and (n + m) is a mean degree of polymerization of from 0 to 10; the proportions of compounds (iv) and (v) being from 3 to 30 parts by weight and 0À3 to 25 parts by weight respectively, per 100 parts by weight of polytetramethylene terephthalate; the total of compounds (iv) and (v) being from 5À5 to 40 parts by weight, and the weight ratio of the compounds (iv) and (v) to antimony trioxide being 0À25 : 1 to 6À0 : 1. The composition preferably contains 5 to 40% by weight of the glass fibres.
Patent GB-1474805-A (GB)
Title: Electrical switching unit
IPC: H02B11/04
Filed: 1974-07-10
Abstract: 1474805 Withdrawable switchgear unit B B C BROWN BOVERI & CO Ltd 10 July 1974 [12 July 1973] 30511/74 Heading H1N A switchgear unit comprises a frame 1 of insulating plastics, e.g. a polyurethane-based integral-skin foam, having recesses 1a, each containing a ring contact 2 and a tulip contact 5 into which corresponding contacts 7b and 7d on a tubular body 7 are received. The body 7 also contains a switching device, e.g. a load-break switch or circuit breaker, which can link the contacts 3 and 5 thus closing the circuit from each of the feeders 6 to bus-bars connected to the ring contacts 3. (Fig. 3, not shown) and which may also connect a plurality of units together via tulip-type sockets. In the construction shown three phase poles 7 are vertically disposed and provided with a common operating mechanism in a housing 7a which may be trolley-mounted. Isolation is obtained by withdrawing the assembly 7a, 7 from the frame 1, thus disengaging contacts 5 and 7d and moving contact 7b from engagement with the ring contact 3 to another ring contact 2 which is earthed. In an alternative arrangement in which the units are in single-phase form (Fig. 4-7, not shown) the plug-and-socket type contacts 5 and 7d are replaced by a further pair of ring contacts so that when the switch is in the withdrawn position the ring contacts 2 and 3 in the recess will each be engaged by a ring contact on the body 7 and thus the bus-bar can be earthed via the switching device within the body. Preferably the ring contacts are laminated.