baber/WOPTO huggingface dataset:
Patent GB-1211897-A (GB)
Title: Improvements in photoelectric elements
IPC: H01L25/04
Filed: 1968-06-05
Abstract: 1,211,897. Semi-conductor devices. SOC. INDUSTRIELLE BULL-GENERAL ELECTRIC. 5 June, 1968 [6 June, 1967], No. 26835/68. Heading H1K. A photo-electric cell is contacted by two lugs, one soldered to the upper (light receiving) face and one to the lower face, each lug protruding beyond an edge of the face to which it is soldered and having a tongue partially cut out and bent over so that it extends beyond the lower face of the cell. As shown, Fig. 2, a photovoltaic cell comprises a wafer 11 of silicon or selenium containing a PN junction, the lower face of the wafer being completely tinned and the upper lightreceiving face 12 having a small tinned portion. The lower face of the wafer is soldered to an electrode lug 15 which extends in the plane of the surface and has two tongues 17, 18 stamped out of it and bent at right angles. The upper face of the wafer is soldered to a second electrode lug 14, which has a double bend so that part of it lies in the same plane as lug 15 and a stamped-out tongue 16 is provided in this portion. The tongues are passed through apertures in a printed-circuit board 23 and the ends of tongues 16 and 17 are bent flat and soldered to the conductors 24. The tongue 18 may be omitted. A plurality of diode wafers may be soldered to integrally connected lugs stamped from sheet metal and bent to shape, Fig. 4 (not shown). Each lug-strip is provided with a triangular groove so that after soldering to the wafers the portion of the strip joining the lugs together may be removed by breaking. In an application in which similar electrodes (e.g. the cathodes) of the plurality of diodes are connected together the strip joining the appropriate lugs may be left in position. In a modification, Figs. 5 to 7 (not shown) a plurality of both anode and cathode lugs (27, 28) are stamped from a single sheet of metal and are joined by strips (35) which extend from the mounting areas of the cathode lugs (28) to the edge strip connecting the anode lugs (27) together so that removal of this edge strip disconnects the anode lugs from the cathode lugs and from one another. The major dimension of the wafer (26) extends transversely to the length of the lugs in this embodiment and the anode lug (27) contacts the upper surface of the wafer across one end. The edge strips connecting similar lugs together may be provided with a pattern of locating holes. The lugs may be of tinned brass or of iron-nickel-cobalt alloy, in which case they may be connected to the wafer by thermocompression bonding.
Patent GB-653898-A (GB)
Title: Improvements in or relating to the manufacture of thermo-plastic resins and of moulded articles therefrom
Inventor: KAUFMAN MORRIS
IPC: C08F12/32
Filed: 1948-10-19
Abstract: Molten acenaphthylene is polymerized by heat in the presence of at least one plasticizer, e.g. a diphenyl/diphenylene oxide mixture, a -methylnaphthalene, dimethyl naphthalene oil, dibutyl phthalate and tricresyl phosphate, to yield a resin which may be powdered and moulded by heat and pressure.
Patent GB-1431213-A (GB)
Title: Rotary positive-displacement vane-type machine
IPC: F04C2/344
Filed: 1973-06-07
Abstract: 1431213 Rotary positive-displacement machines ALFRED TEVES GmbH 7 June 1973 [12 June 1972] 27166/73 Heading F1F A rotary positive-displacement vane-type machine in which each working chamber can be selectively connected either to an inlet 2 or an outlet 3 through respective ports 11-21 by means of a control device 9, comprises an annular member 8 bounding the working chambers on the side remote from control device 9, separation of member 8 from the adjacent stator and rotor 5 being prevented by counterpressure pockets 24-35, Fig. 3, formed in an annular disc 23 located in an annular recess 22 on the side of member 8 remote from the working chambers. The disc 23 is formed with pockets on alternate sides thereof, each pocket corresponding to a respective working chamber and being connected thereto by passages 36, 37 so that whatever combination of working chambers is pressurized the forces on member 8 will always be counterbalanced. In alternative embodiments, the chambers can be alternately formed in member 8 and the adjacent part of the housing 1 with a disc inserted therebetween, or the recess for disc 23 can be formed in this housing part.
Patent GB-1389411-A (GB)
Title: Cultivation of cells and tissues
IPC: C12M1/36
Filed: 1972-06-09
Abstract: 1389411 Culturing tissue cells MAXPLANCK GES ZUR FORDERUNG DER WISSENSCHAFTEN EV 9 June 1972 [9 June 1971] 27169/72 Heading C6F A method of mass cultivation of cells and tissue in sterilized chambers containing nutrient medium buffered with bicarbonate ions involves placing the chamber in a gas-tight incubator, supplying oxygen, carbon dioxide and nitrogen to the incubator from individually controlled sources, holding the water vapour pressure constant for a given temperature in the incubator by saturating with water vapour the incoming gas supplied and automatically controlling in a conventional manner the partial pressures of oxygen and carbon dioxide and the pH of the nutrient medium. The pH is generally maintained by regulating the supply of carbon dioxide and the supply of nitrogen is altered reciprocally to maintain a constant partial pressure of oxygen as the carbon dioxide input alters. If, however, the partial pressure of the carbon dioxide in the medium indicates that the system is in disequilibrium, fresh nutrient medium is automatically pumped in and a corresponding amount of exhausted medium withdrawn. The chambers may be rectangular pouches made from thermoplastic film with chemically roughened internal surfaces, as described and claimed in Specification 1389412. The chambers 1, Fig.4, may be mounted on steel netting 23 within individual incubators 18 each provided with a door (not shown) and a pair of quartz windows 22 permitting turbidity measurements to be taken in the control position 19. The necessary supply and withdrawal of gases take place through lines 20 and 21, respectively, only when the particular incubator is at the control position. The incubators may be fastened to a rotatable table located within the periphery of a second, annular table of the same height on which measuring instruments may be located. The incubators may have a rectangular, trapezoidal, square, round or triangular base configuration.
Patent GB-428049-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B41/06
Filed: 1933-10-04
Abstract: 428,049. Four-stroke-cycle engines. KIRKE, P. ST. G., Givons Manor, Leatherhead, Surrey. Oct. 4, 1933, No. 27236. [Class 7 (ii)] The usual four-stroke cycle is performed in cylinder 11, but during the expansion and exhaust-strokes only, a passage 33 and valve 40 places the cylinders 11, 12 into communication. Two cylinders 11, 13, a half-cycle apart in phase, alternately communicate with an inter - vening cylinder 12. The shafts 20, 21 may be driven through a bridge member 17, or a single shaft and crank pin parallel to the plane of the cylinders may be used. Less clearance is provided in the cylinders 12 than in the cylinders 11, 13, and pressure on the valves 40 is balanced by forming cylindrical stem portions beyond the port 33. Sleeve or rotary valves may be used.
Patent GB-1088547-A (GB)
Title: Process for dyeing regenerated cellulose films
IPC: D06P1/32
Filed: 1966-06-17
Abstract: The invention comprises a process for making a regenerated cellulose film which is dyed comprising casting a coagulable solution of a cellulose derivative into a coagulation bath to form a film, regenerating the cellulose in the film, washing, purifying and bleaching the film wherein immediately before the bleach treatment the film, while still in a gel state, is permeated with a solution of a dye forming substance which forms an insoluble dye under oxidising conditions in the bleaching bath.  The bleach of the bleaching process may be used to insolubilise the dye on the cellulose film which may be viscose and dyes of the vat, azo, and aniline series are referred to.  A mixture of dyes may also be used.
Patent GB-661018-A (GB)
Title: Adhesive compositions
IPC: C08K5/03
Filed: 1948-10-20
Abstract: An adhesive composition is made by heating a mixture of polyethylene and a halogenated aromatic hydrocarbon, having an average halogen content of 30 to 75 per cent, at a temperature between 100 DEG  and 200 DEG  C. with agitation for two hours.  The halogenated compounds may be halogenated diphenyls, naphthalenes or benzenes, e.g. 1,2,4,5-tetrachlorobenzene, hexachlorobenzene, or p-dibromobenzene. Specification 590,052 is referred to.
Patent GB-189432-A (GB)
Title: Manufacture of formaldehyde
IPC: C07C45/43
Filed: 1922-10-09
Abstract: Formaldehyde is produced by passing a mixture of methylene chloride vapour and water vapour at a raised temperature over a porous body, such as pieces of clay, infusorial earth, or ordinary or activated wood charcoal.  The condensate consists of a hydrochloric acid solution of formaldehyde.  The activated wood charcoal may be obtained by heating substances containing carbon to complete carbonization with phosphorous acids or compounds decomposing into phosphorous acids during the carbonization or in presence of moisture.
Patent GB-1216161-A (GB)
Title: Improvements in or relating to cutting implements
IPC: B26B3/00
Filed: 1969-05-29
Abstract: 1,216,161. Knives. NIPPON TENSHASHI K.K. 29 May, 1969 [15 Feb., 1969], No. 27351/69. Heading B4B. A knife comprises a cutting blade 4 held in a holder 9, 17 by means of a clamping device having jaws 7 which are formed with chamfered portions 7<SP>1</SP> engageable with ma ing surfaces, on the holder portion 9, the jaws being urged to the clamping position by means of a spring 16. The jaws 7 are formed on a member 15 slidable in a bore 11 which is provided in the holder portion 9, the member 15 being connected by a thread 8 to a control member 13. A knob 15 is secured to the control member so that by depressing the knob against the action of the spring 16 the jaws are released. Spare blades can be accommodated within the control member. The blades are made from a thin steel strip having a cutting edge 3 and formed with break lines 2, Fig. 5, so that blades 4 may be successively broken from the strip. A cap (18, Fig. 4) having a pocket clip (21) can be screwed on to the holder portion 9.
Patent GB-284757-A (GB)
Title: Improvements in or relating to collapsible furniture
IPC: A47B3/14
Filed: 1926-11-01
Abstract: 284,757. Patchett, R. P., Drew, F. A., Ross, D. M., and Chandler, J. H. Nov. 1, 1926. Folding seats.-A collapsable article of furniture consists of a folding table with an X-frame seat or seats combined therewith. Fig. 1 shows a table consisting of a top 1 on four pairs of legs 3, 10, 11, 12, each with a stretcher 19-22, to each of which is pivotally attached an X-frame seat consisting of two pairs of inverted U-shaped frames 23, 24 and a rigid seat portion 29. The frames are preferably each one-piece members, but may be built up of wood, metal &c., with tubular arcuate corner connecting-pieces. Adjustable chains, straps 30, and hooks 18, 32 are provided for holding various parts in place when folded or unfolded.
Patent GB-710177-A (GB)
Title: Improvements in or relating to apparatus for measuring or indicating variations in the width of solid materials
IPC: G01B7/04
Filed: 1950-11-09
Abstract: 710,177. Electric indicating systems. GENERAL ELECTRIC CO., Ltd., ANTRICH, D., and GARDINER, H. W. B. Dec. 6, 1951 [Nov. 9, 1950], No. 27420/50. Class 40 (1). Apparatus for measuring variations in the width of a solid material comprises a frame on which are mounted two parallel rollers connected by springs to press against the test material located between them, so that a variation in the width of the test material moves the rollers relative to each other and thereby moves the position of a magnetic core relative to two fixed coils, the consequent changes in impedance, representing the changes in width, being determined in a bridge circuit. Construction of gauging device.-The two rollers 1, 2 (Figs. 1, 2 of Prov.), mounted on bearings 3-6 on shafts 7, 8 respectively, are fixed to plates 9, 10 held together by springs 34, 35, and mounted on roller bearings 17-20. Beneath one plate 9 is fixed a bracket 25, carrying two coils 26, 27, a magnetic armature 28 being located between the coils on guide rods 32, 33 by stops 47 and springs 48, 49. The rods pass through a guide block 29 attached to the other plate 10, and are rigidly fixed in a bracket 41. A pointer 45 on bracket 41 co-operates with a scale 46 to indicate the rest position of the armature 28, which is adjustable by a knob 39. Circuit arrangements.-The coils 26, 27 form two arms of a bridge circuit which is normally unbalanced, the variations in unbalance current indicating the variation in width of the material passing between rollers 1, 2. In one form of combined measuring and indicating circuit (Fig. 6), where the unbalance current from the bridge 100 is rectified at 108, amplified at 109 and measured at 110, the amplified unbalance current also passes through the D.C. control windings 111, 112 of two magnetic amplifiers 113, 114, whose A.C. windings are connected with two relays 126, 127, D.C. bias being provided by windings 145, 146 through adjustable resistors 157, 158, thereby controlling the levels of unbalance current required to operate each of relays 126, 127. The D.C. bias is adjusted so that relay 127 operates with a lower unbalance current than relay 126, and the relay contacts are interconnected with coloured lamps B, Y, R, so that when the unbalance current is too low, i.e., width is below minimum, neither relay 126, 127 operates and lamp B lights. With material above the minimum width but below the maximum, relay 127 operates to extinguish lamp B and light lamp Y. With material above the maximum width both relays 126, 127 operate to extinguish Y and light R.
Patent GB-1171502-A (GB)
Title: Improvements in or relating to Telephone Systems
Inventor: GILBOY LAWRENCE JOSEPH
IPC: H04Q3/00
Filed: 1967-06-14
Abstract: 1,171,502. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. 14 June, 1967 [16 June, 1966], No. 27438/67. Heading H4K. Two-way junctions found free by a marker and nominated for a connection can be released if the junction is busied from the far end before the marker has time to busy the junction at the far end. The invention is applied to the No. 5 Crossbar System as described in U.S.A. Specification 2,585,904, and is effected by extending the lead, over which the junction is busied from the far end, into the marker. When the junction is busied over this lead from the far end a period of 100 ms. is measured out during which time a marker which has it in mind to use the junction for an outgoing call is persuaded otherwise. If the marker wanted the junction for a tandem call then the exchange re-routes the call over another junction. If the marker wanted the call for a local subscriber's outgoing connection then an alternative junction is sought only if the marker has not proceeded beyond a point of no recall. In order further to reduce conflict between simultaneous demands on the junctions from both ends, a junction when released may be artificially busied to its own exchange for a period to give way to incoming calls.
Patent GB-592612-A (GB)
Title: Automatic firearm
IPC: F41A5/08
Filed: 1945-10-19
Abstract: 592,612. Automatic firearms. LIPPERT, H., and MUHLEMANN, E. Oct. 19, 1945, No. 27594. Addition to 592,611. [Class 92 (ii)] The invention of the parent Specification is now modified by providing, in each of the holes 13 at the ends of the grooves 12 which guide the locking bolt 9, a slanting face 14 so designed as to start the locking movement of the bolt, and with a further slanting face 16 with which the ends of the bolt contact when rotated to the locked position, the ends of the bolt having recesses 18 in which a shoulder 17 on the rear part of the breech-block engages in the locked position. On firing, a rearward movement is given to the rear part of the breech-block to disengage the shoulders from the recesses 18, and the residual gas pressure on the front part of the block acting on the slanting faces 16 rotates the bolt to the unlocked position.
Patent GB-616858-A (GB)
Title: Improvements relating to safety razors
IPC: B26B21/18
Filed: 1946-09-14
Abstract: 616,858. Razors. TRANTER, A. T. Sept. 14, 1946, No. 27629. [Class 30] In a safety razor in which the blade 4 is clamped between usual guard and cover plates 1 and 3 the internally threaded handle 7 is split tc form resilient jaws 10, 10, which, after adjustment of the plates 1 and 3, are clamped on the stud 6 by means of a threaded sleeve 13 having interiorly coned surfaces 14 which co-operate with similar surfaces 12 on the handle 7
Patent GB-322038-A (GB)
Title: Improvements in potters' jolleys for shaping earthenware, china, porcelain and other articles made of plastic material
IPC: B28B1/02
Filed: 1928-09-28
Abstract: 322,038. Barratt, W. G., and Holdcroft, H. L. Sept. 28, 1928. Pottery, throwing and turning. - A potter's jolly arm is made in two parts a, b connected by a vertical pivot c so that the tool e, after being brought down into the mould by the lowering of the weighted arm W, can be moved horizontally to produce undercut or bellied " ware and moved back again to clear the moulded article after the completion of the operation. Stops g, which limit the horizontal movement, can be set to fix the parts a, b rigidly together when producing straight or non-bellied ware.
Patent GB-838708-A (GB)
Title: Improved films and their production
Inventor: CORNFORTH JACK WITHERINGTON
IPC: B29C55/12
Filed: 1956-09-12
Abstract: An oriented film is made from a substantially amorphous, extruded film consisting essentially of polyethylene terephthalate by drawing the film in the direction of extrusion to a draw ratio of 2.75 : 1 to 3.5 : 1 and in the transverse direction to a draw ratio of 3.3 : 1 to 4 : 1, and then heat-setting the film at 150-230 DEG  C.  Drawing may be carried out simultaneously in both directions, preferably at 78-125 DEG  C., or separately in the two directions, preferably first in the machine direction at 78-100 DEG  C. and then transversely at 80-125 DEG  C.  Specification 603,840 is referred to.
Patent GB-662037-A (GB)
Title: Improvements in or relating to geiger counters
IPC: H01J47/08
Filed: 1949-11-01
Abstract: 662,037. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOEILAMPENFABRIEKEN. Nov. 1, 1949 [Nov. 4, 1948], No. 27920/49. Class 39 (i). A Geiger counter comprising a cylindrical cathode 9, a wire or rod-like anode 7 arranged within the cathode and coaxial therewith, and a window 1 at the end of the counter through which radiation to be investigated may enter in the axial direction into the counter filled with ionizable gas, is characterized in that the window 1 is electrically conductive, is electrically connected to the cathode 9 and is at a distance from the anode such that the threshold of counter action of the space between the end of the anode adjacent the window and the window is equal to that of the space between the anode and cylindrical cathode. The window 1 may be of metal such as the aluminium alloy known under the Registered Trade Mark " Duralumin," or aluminium, or may comprise electrically non- conductive material such as mica supporting a thin layer of electrically conductive material such as metal or carbon, and is hermetically sealed by a cap nut 2 and connecting ring 3 to one end of a cylinder 4 of metal or glass, the other end of which is closed by a metal stopper 5 provided with a glass insulator 6 through which passes the anode 7. The end 8 of the anode is rounded to prevent undue concentration of the electric field which would occur at a sharp point. The cathode 9 is a metal cylinder electrically connected directly to the outer wall 4 when this is made of metal and supported therein by insulating rings 10. The gas filling is introduced through a side-tube 11 which is subsequently pinched off and closed by soldering. The construction limits the dead space to a very small volume between the end 8 of the anode and the window. 1
Patent GB-483553-A (GB)
Title: Improvements in or relating to optical illusion apparatus
IPC: G09F13/12
Filed: 1936-10-14
Abstract: 483,553. Changing signs. PRIBIL, 1. Oct. 14, 1936, No. 27950. [Class 3 (i)] [Also in Group XV] An advertising-device of the " Pepper's Ghost type comprises two compartments A<1>, A<2> separated by a transparent glass plate B tinted, grey for example, to diminish the effects of internal reflection, the two compartments being illuminated by electric lamps F<1>, F<2> connected to a variable resistance whereby the lamps in one compartment may be gradually illuminated whilst those in the other compartment are correspondingly gradually dimmed. The device is provided with an observation aperture D, with backgrounds B<1>, B<2> of a light colour and walls C<1>, C<2> of a dark colour or black. Screens G prevent direct light from lamps F<1>, F<2> reaching plate B. The light from the lamps F<1>, F<2> is preferably of a colour complementary to that of the plate B. The inclination of the plate B can be adjusted by screws H. The aperture D may be provided with a clear or tinted light transparent plate. The background B<2> may be changeable by rotation about axis O, and part of background B<1> together with part of side walls and floor may be changeable by provision of a four-part rotating stage P. The compartment A<1> may be provided with one or more apertures through which ultra-violet light may be projected to illuminate parts painted with a radium or uranium salt. Specification 470,566 is referred to.
Patent GB-200008-A (GB)
Title: Process for the production of lastingly incandescent heating conductors in articles for use with the use of cheap material
IPC: H05B3/18
Filed: 1922-10-16
Abstract: 200,008. Gr÷nqvist, A. Oct. 16, 1922. Wire resistances, embedded; resistance materials.-A heating-resistance for use in flat irons, heating-plates, vessels, ovens. &c., in which the resistance is permanently incandescent when in use, comprises a wire of iron, steel, nickel, cobalt, copper, or alloys thereof coated with a layer containing aluminium. This coating is formed on the wire after the final shaping and mounting thereof in the utensil to be heated to avoid reshaping the treated wire, which is brittle. The wire is mounted in a heat-insulating support of magnesium oxide or aluminium oxide or both, and is embedded in a mixture of aluminium and aluminium oxide. The temperature of the wire is then raised to 700-1200‹ C. in an atmosphere of hydrogen by passing a current through it. The aluminium penetrates into the wire, forming an alloy. The powder that is left contains an excess of aluminium, but insufficient to form a good conductor.
Patent GB-319500-A (GB)
Title: Improvement in ploughs and like implements
IPC: A01B69/00
Filed: 1928-10-01
Abstract: 319,500. Bentall, E. E., and Bingham, G. C. Oct. 1, 1928. Wheels, arrangement of.-The swivel wheels of ploughs, cultivators, swath-turners &c. are so mounted as to turn from side to side freely while the implement is travelling forward, and to be locked automatically in line with the implement frame when the implement is backed. The forked frame B carrying the wheel A is pivoted horizontally on an arm C which is pivoted vertically on adjustable standard D. A cranked stem F projects from the frame B into a triangular loop G arranged as shown on the implement frame E. When the implement moves forward the wheel A swings backward and the stem F enters the wide part of the loop G so that the arm C is free to turn about its vertical pivot to a limited extent. When the implement moves backward the stem F enters the narrow part of the loop G and movement about the vertical pivot is prevented.