baber/WOPTO huggingface dataset:
Patent GB-663938-A (GB)
Title: Improvements in and relating to socket units for thermionic valves and other electrical components having projecting prongs and contacts for such socket units
IPC: H01R33/76
Filed: 1949-04-22
Abstract: 663,938. Holders for discharge tubes; twopart couplings. CINCH MANUFACTURING CORPORATION. April 22, 1949 [April 23, 1948], No. 10796/49. Class 38 (i). A socket contact 20, preferably for a valveholder 10, comprises a rectilinear body-portion 23 with a prong-receiving aperture 22 and converging, depending wings 26 with sharp edges 27 to contact and bite lockingly into the prong, an angularly-positioned connection tag 24 projecting from the body portion. The valveholder, which is formed of superposed plates 11, 12 riveted together, is provided with radiallyarranged rectangular apertures 17 into which the contacts 20 snugly fit so that the folds 28 of the wings 26 act as fulcra, the tags 24 projecting through holes 18 adjacent and normal to the holes 17. In a modification for " printed circuits," Fig. 11, the tags 38 extend flat along the surface of an insulating panel 39 on the same surface of which the conductors 43 are provided and the ends 44, 45 of the conductors 43 and the tags, respectively, are soldered together. The holder 29 is riveted at 46 to the panel which is correspondingly apertured for the prongs.
Patent GB-452990-A (GB)
Title: Improvements in or relating to hydraulic power transmission means
IPC: F16D33/04
Filed: 1935-04-09
Abstract: 452,990. Hydraulic transmission of power. ILIFFE, J. A., and ILIFFE, T. H., 10, Buller Street, Kibworth Beauchamp, Leicestershire. April 9, 1935, No. 10960. [Class 69 (ii)] In a hydraulic coupling, the driven element is moved axially relatively to the driving element under the action and/or control of one or more springs and governors arranged about the axis. In the form shown, the driven element 2 is acted on by a spring 23 and a stronger spring 28, and by governors with lighter and heavier weights 19, 29. The vanes 3, 4 overlap. The outer governor may be replaced by a manually operated control, and mechanical gearing may be positioned before or behind the coupling.
Patent GB-1468062-A (GB)
Title: Elevator system and method
IPC: B66B1/18
Filed: 1974-03-12
Abstract: 1468062 Multi-car systems WESTINGHOUSE ELECTRIC CORP 12 March 1974 [12 March 1973] 10981/74 Heading G3N The disclosure is the same as that of Specification 1468061 but the claims are concerned with strategies for assigning the highest call amongst a group of down floor calls, for clearing the system and re-allocating all floor calls, and for periodic verification that "demand" floor calls, {i.e. those which could not be allocated by subprogram (ACL) Fig. 4 (not shown) to a car already having a floor call service requirement } have an available car assigned to them. If a new, highest down floor call is received, that car which was assigned to the previous highest call has its allocation transferred to the new highest call only if there is no other car without service demands on it to take the new highest call. This strategy is stated to save needless running of cars in comparison with schemes in which a car allocated to a highest down call will automatically be allocated a new highest down call. Whenever, during operation, all cars become free of service demands, car assignment, call, and call change, records are all cleared, any unanswered call being registered as a new call. As a verification any floor call which has had an available car assigned to it { by sub-program (ACR) Fig. 4 (not shown) is periodically treated as a new call and reprocessed as a new "demand".
Patent GB-309864-A (GB)
Title: Improvements in or relating to pneumatic separator feet for use in sheet-feeding apparatus
IPC: B65H3/08
Filed: 1929-04-09
Abstract: 309,864. Miller Printing Machinery Co., (Assignees of Atzert, J. A.). April 16, 1928, [Convention date]. Sheet-separators. - Pneumatic separator feet for automatic sheet-feeding apparatus such as described in Specification 21927/13, in which separation of the top sheet of a pile is facilitated by forming a V or other depression 16 in the sheet-engaging side of the foot 12, so that air can pass between the top sheet and the one below it to prevent double feed, are constructed so as to enable the extent to which the sheet is buckled by the depression 16 to be varied for sheets of different thickness. The foot 12 is secured by a latch 14 to a reciprocating bar 10, and the foot is formed with a boss 17 into which is threaded a tube 18 connected by a pipe 19 to a vacuum pump or the like. A suction cup 21 is attached to the tube 18, and is received in a hollow part 20 of boss 17 which is aranged on the front of foot 12. By rotating tube 18 the cup 21 is adjusted vertically, and when this is raised a great buckling effect is given to the paper, and when it is lowered, as for thick sheets, the buckling effect is diminished.
Patent GB-412015-A (GB)
Title: Improvements in cutters with inserted teeth for use in milling and other machine tools
IPC: B23C5/24
Filed: 1933-04-13
Abstract: 412,015. Milling-cutters &c. CRAVEN BROS. (MANCHESTER), Ltd., and HUGHES, J. H., Vauxhall Works, Reddish, near Stockport. April 13, 1933, No. 11072. [Class 83 (iii).] A milling or like cutter comprises a body 1 into which are inserted a number of flat cutting teeth 3, each tooth having a serrated face 4 coacting with a serrated looking-cotter 8, and a convex face 6 engaging a corresponding concave surface on the blade slot in the body. The blade slots 2 are inclined both radially and axially of the cutter axis and the face 6 may be cylindrical. A conical recess 7 in the body has a surface approximately perpendicular to the axes of the cotters 8 which are received in cylindrical holes 8<a> and have serrated faces 9 inclined to their axes to give a wedging effect. In some cases the cutter may project at both ends and along one side so that three surfaces may be machined simultaneously.
Patent GB-1467945-A (GB)
Title: Open-end spinning machine with means for supplying a sliver
IPC: D01H4/36
Filed: 1975-03-18
Abstract: 1467945 Opening device for open end spinner F STAHLECKER and H STAHLECKER 18 March 1975 [11 April 1974] 11181/75 Heading DIN An open-end spinning machine has means 1, 3 for supplying a sliver 7 to an opener roll 2 which is followed by a fibre supply channel 8 leading to a spinning rotor 9, fibre guide surfaces being provided and having an opening 18 for the removal of impurities between the means 1, 3 and the channel 8, a conveyor belt 19 being arranged in the opening 18 and serving as a fibre guide surface moving in the direction of travel of the fibres and forming a collection area for the removed impurities together with an end wall of the opening 18. As shown, the sliver 7 passes through an inlet funnel 6 and between a supply roller 1 and a pressure member 3 urged counterclockwise of an axle 4 by a spring 5. A pivoted lid 14 covers the roller 1 and the roll 2 to prevent. air from infiltrating and contamination by fly. The opening 18 is defined by an interchangeable and/or adjustable insert 16 having a fibre guide surface 17. The belt 19 extends about a drive roller 21 and a bolt 20, the bolt 20 being adjustable in position, and has ridges 25 on its surface to form chambers 26 in which the impurities can be collected. Air is supplied through means 28 of adjustable cross-section and a channel 24 and the impurities are removed by suction means 23.
Patent GB-811792-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: SMITH WILLIAM
IPC: H01L21/00
Filed: 1956-04-12
Abstract: 811,792. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. April 1, 1957 [April 12, 1956], No. 11194/56. Class 37. A semi-conductor device comprising an alloy junction is formed by evaporating a layer of material comprising an acceptor or donor, on to the surface of the semi-conductor body, placing a quantity of the same or different acceptor or donor material on to the plated region, heating to melt the material and cooling to form the junction region. In an example, a gold-plated surface of a germanium disc is soldered to a disc of " Nicosel " soldered to a copper block. Indium is evaporated on to a masked region of the opposite surface of the Ge disc, and a slice of indium, or indium and gallium alloy is placed on the indium coating. The whole is heated to 480-550‹ C. in dry argon, to effect the soldering and formation of the junction region of P-type germanium. The germanium is washed and etched with a solution of hydrofluoric acid, hydrogen peroxide and water during the process.
Patent GB-418959-A (GB)
Title: Improvements in or relating to dialysing apparatus of the filter press type
IPC: C01D1/38
Filed: 1934-04-13
Abstract: <PICT:0418959/III/1> <PICT:0418959/III/2> In dialysing-apparatus of the filter-press type comprising a series of alternately connected chambers constituted by frames between which septa are clamped, a perforated flexible mat of indiarubber is provided on each side of each septum.  Fig. 1 shows a mat having square perforations 3.  The strips 4 between the holes may be provided with projecting studs (not shown).  The supporting frames may be constituted by two sets of strips 5, Fig. 5, of half the thickness of the frame, each set being flush with one face thereof.  The strips may be arranged to provide the minimum resistance to diagonal flow, and their outer faces may be grooved to reduce the area in contact with the rubber.  They are provided with gaps 6 at their centres to eliminate stresses during casting.  Specification 391,068 is referred to.
Patent GB-1334811-A (GB)
Title: Photosensitive compositions
IPC: G03F7/023
Filed: 1972-03-10
Abstract: 1334811 Epoxy resins PHILIPS GLOEILAMPENFABRIEKEN NV 10 March 1972 [13 March 1971] 11307/72 Heading C3B [Also in Division G2] The following partial esters are prepared from polyepoxides:-diglycidyl ether of 2,2-di-(phydroxyphenyl)propane was heated with gamma, gamma - di - (p - hydroxyphenyl)valeric acid in a nitrogen or argon atmosphere optionally using cyclohexanone as solvent to produce a resin melting between 75‹ and 95‹ C. The valeric acid may be replaced by gallic, 3,5-dihydroxybenzoic, 2,4-dihydroxybenzoic or 3,5- dimethyl-4-hydroxybenzoic acid using cyclohexanone as solvent and optionally triethylamine. The diglycidyl ether may be replaced by 1,2 - epoxyvinyl - 2 - (3<SP>1</SP>,4<SP>1</SP> - epoxycyclohexene) or 3,4 - epoxycyclohexylmethyl - 3<SP>1</SP>,4<SP>1</SP>- cyclohexane-carboxylate and be heated with the above specified valeric acid in cyclohexanone optionally in the presence of triethylamine. The resins may be used in photoresists (see Division G2).
Patent GB-267739-A (GB)
Title: Improvements in train control mechanism
IPC: B61L3/22
Filed: 1926-04-29
Abstract: 267,739. Clark, T. E., and Clark, J. E. April 29, 1926. Track apparatus actuating signals on trains and for stopping trains.-Lamp signals on a train and the brake valve are controlled according to the state of traffic by a relay having two coils 128, 129 adapted to neutralize one another when energized simultaneously, the coils receiving energy through thermionic valves 106, 107, the grids of which are connected to coils 114, 115 in inductive relation to the track rails which are supplied with energy at different frequencies to which the circuits are respectively turned. A speed-controlled switch 138 controls the application of the brakes and a manually-operatedl switch 153 permits slow progress beyond a danger signal. If no current is supplied from the track rails to the coils 114, 115, current passes from the generator 98 through both thermionic valves 106. 107 and both magnets 128, 129 which neutralize one another and do not raise the armatures, and to the magnet 126, which only receives sufficient current to lift its armature when both coils 128, 129 are in parallel. The lamp R is then energized from generator 99. The valve magnet 145 is de-energized since armatures c, d occupy neutral positions and a small vent 147 on the brake pipe is opened. By the closing of the switch 153 by the driver the relay 161 is energized and its armature a closes a holding circuit and its armature b closes a circuit over the speed control switch contacts 138 to the. valve 145, by which means the brake application is prevented until the relay 161 is shunted by armature a of coils 128, 129 when either coil 114, 115 picks up energy from the rails or until the train speed is raised to open contacts of switch 138. When coil 115 picks up current, the winding 129 is deenergized, and coil 128 acting alone moves armatures c, d counterclockwise and raises armatures a, b. Yellow caution lamp Y is energized and if the speed is below the limiting value; current flows over armature c and the contact 140 of switch 138 to the valve magnet 145. When coil 114 picks up current from the rails, winding 128 is de-energized, and armatures c, d move clockwise and armatures a, b are raised. The green lamp G is energized and the valve magnet circuit is made independently of the speed-controlled switch.
Patent GB-592679-A (GB)
Title: Improvements in light-sensitive photographic elements
IPC: G03C1/73
Filed: 1945-05-04
Abstract: 592,679. Photographic light-sensitive material. DU PONT DE NEMOURS & CO., E. I. May 4, 1945, No. 11356. Convention date, May 9, 1944. [Class 98 (ii)] Photographic light-sensitive material comprises a support bearing a layer of an N-monoarylhydroxylamine or a nitrone derivative thereof. The layer may have a water-permeable colloid binder such as gelatin, casein, zein, deacylated chitin, polyvinyl alcohol, gum tragacanth, agar-agar, Irish moss, ethyl cellulose, polymethacrylamide, cellulose acetate phthalate, cellulose acetate, or polyvinyl acetate. The support may be paper, metal, glass, cellulose derivative, synthetic resin or superpolyamide. The material may be fixed by washing in a solvent for the hydroxylamine or nitrone, e.g. water or an aqueous organic solvent. The hydroxylamine may be N- phenyl-, N-o-tolyl-, N-p-tolyl-, N-alpha-naphthyl-, N-#-naphthyl-, N-xenyl-, N-p-methoxyphenyl-, or N-2: 4-dimethylphenyl-hydroxylamine, and the nitrone may be one obtained by reaction with benzaldehyde, p-tolaldehyde, salicylaldehyde, cinnamaldehyde, furfural, sodium benzaldehyde - o - sulphonate, sodium phthalalde - hydate, sodium glyoxylate, o-chlorobenzaldehyde, phenylacetaldehyde, acetaldehyde, acrolein, methacrolein, crotonaldehyde, acetone, methyl ethyl ketone, diethyl ketone, diamyl ketone, methyl n-butyl ketone, acetophenone, levulinic acid, sodium levulinate, ethyl acetoacetate, ketobutanol, methyl vinyl ketone and benzophenone. The Specification as open to inspection under Sect. 91 comprises also the use of N-o-chlorophenylhydroxylamine, N - (4 - dimethylamino -alphanaphthyl)-hydroxylamine and N-2 : 4-dimethoxyphenylhydroxylamine. This subject-matter does not appear in the Specification as accepted.
Patent GB-527557-A (GB)
Title: Improvements in devices for joining film ends
IPC: G03D15/04
Filed: 1939-04-14
Abstract: 527,557. Joining films, DANIEL, K. April 14, 1939, No. 11390. Convention date, May 6, 1938. [Class 98 (ii)] A device for joining under pressure film ends coated with a solvent, comprises two clamping jaws pervious to air for exerting the joining pressure. The clamping jaws may be traversed by a plurality of fine channels or may have a spongy structure, and the surfaces exerting the pressure are ground plane. Suitable materials are copper or other metal in spongy form, pumicestone, or porous cellulose. The films may be of cellulose acetate, nitrate or hydrate, and the solvent may be glacial acetic acid. As shown, the films 1 and 2 are coated with solvent and pressed together by the clamping jaws 3, 4, which are ground plane on their clamping surfaces and traversed by fine channels. The ends of the film may be oppositely bevelled. The clamping jaws are surrounded by the casing 5 into which air is drawn through the aperture 6 by the fan 7, the moisture content of the air being regulated by the drying dishes 8, which may contain phosphorus pentoxide. The surplus air escapes at 8. The solvent vapour-pressure may be regulated by feeding solvent vapour to or extracting it from the air in the chamber.
Patent GB-610676-A (GB)
Title: Improvements in or relating to step ladders
IPC: E06C1/00
Filed: 1946-04-13
Abstract: 610,676. Combination furniture. HICKMAN, W. April 13, 1946, No. 11428. [Class 52(iii)] [Also in Group X] An ironing board or table 20 is positioned on a rail 12 on a step-ladder by fillets 21 and secured by a turn button 22. A hinged strut 24 engaging the top step provides additional support and the board can swing over to lie against the back of the ladder when folded.
Patent GB-485416-A (GB)
Title: Improvements relating to cotton drafting frames
IPC: D01H5/56
Filed: 1937-04-22
Abstract: 485,416. Drawing wool. ELZER, J. April 22, 1937, No. 11523. [Class 120 (ii)] In order that cotton-drawing frames may be adapted for drawing material containing wool, for example a sliver of combed wool for spinning a mixture of wool and cotton or staple fibre or artificial silk, the upper rollers 3 are made considerably shorter than the lower, about one half, and are mounted in stands 4 whereby the loading by means of weights 5 is more effective, tilting of the roller due to displacement of a thick sliver is prevented, and regular drawing ensured.
Patent GB-1022916-A (GB)
Title: Improvement in and relating to the metallic impregnation of carbon or graphite
IPC: H01B1/00
Filed: 1964-03-18
Abstract: Carbon or graphite is impregnated with a molten metal by placing the carbon together with the metal in solid form in a total enclosure formed of an electrically conductive, non-agglomerated compacted powder, said compacted powder being surrounded by a supporting sleeve and pressure members and subjecting said enclosure to a pressure of 150-200 kg./cm.2 by means of the pressure members whilst heating to at least the m.p. of the metal, the m.p. of said powder being above the m.p. of the metal at said pressures.  The compacted powder is preferably a compressed natural graphite powder.  The heating of the enclosure may be by means of electrodes applied to the pressure members, or by high frequency heating.  The apparatus used is described solely in relation to the Figure (not shown). The pressure may be applied by means of a screw or hydraulic jack, and the supporting sleeve may be made of graphite, or may be of metal having a lining of magnesium oxide or carbon.  The material produced finds application as friction materials, electrical brushes, electrical traction shoes, collectors, electrical connectors and in nuclear energy applications.  Impregnation with copper and silver is exemplified.
Patent GB-856359-A (GB)
Title: Improvements in electrolytic production of titanium metals
IPC: C25C7/02
Filed: 1959-04-06
Abstract: 856,359. Producing titanium by electrolysis. NEW JERSEY ZINC CO. April 6, 1959 [April 21, 1958], No. 11569/59. Class 41 Metallic titanium is produced by electrolysis of a fused halide bath 5 composed of at least one of the alkali metal and alkaline earth metal halides in an apparatus which is similar to that described in Specification 811,881, but which is modified by extending the imperforate portion 9 of the cathode upwardly from the bath surface to the cell cover 2 to separate the cell atmosphere D above the bath 5 near the side of the cathode 9 remote from the anode 15 from the atmosphere C above the bath 5 between the electrodes. An inert gas, e.g. argon, is delivered at 18 to remove chlorine at 19 from the atmosphere C, and titanium tetrachloride, mixed with argon, is delivered to the bath at 3, excess gas leaving at 4. Three eutectic bath mixtures are described. One is the same as that described in Specification 811,881, and the others comprise respectively 48À5 mol per cent NaCL and 51À5 mol per cent KCL, and 24 mol per cent BaCL, 35 mol per cent NaCL and 41 mol per cent KCL. Titanium ions of valency less than 4 are established in the bath by introducing Ti C1 2  directly, by dispersing finely dividel Ti metal in the bath and bubbling Ti C1 4  therethrough, by electrolysis of the bath while maintaining Ti Cl 4  in the cell atmosphere, or by introducing Ti Cl 3  into the bath. Specification 777,892 also is referred to.
Patent GB-448294-A (GB)
Title: A process and a product for softening textiles, leather, paper and like fibrous materials
IPC: D06M13/224
Filed: 1935-04-15
Abstract: Fibrous materials such as textiles, leather and paper are softened by means of compounds having the formula MeOCO.AYZ in which Me stands for ammonium or an alkali metal, A for alkyl, cycloalkyl or an aryl residue, Y for the COO group which may be attached to the residue A by means of carbon or oxygen, and Z for an aliphatic residue which contains at least eight carbons and may contain at most two divalent atoms, e.g. oxygen or sulphur, interrupting the carbon chain.  The compounds are also stated to have wetting and cleansing properties. The ester-acids of aliphatic, cycloaliphatic or aromatic dicarboxylic acids may be prepared by partial esterification, e.g. heating the acid anhydride with the higher alcohol until the requisite proportion of water has been removed, or by partial esterification of the neutral esters.  Compounds in which Y is united to A by means of oxygen may be prepared by acylation of aliphatic, cycloaliphatic or aromatic oxycarboxylic acids, e.g. by means of an aliphatic acid halide in the presence of pyridine or a salt of a higher aliphatic carboxylic acid may be reacted with a halogenated carboxylic acid in the presence of copper or copper sulphate.  In examples: (1) viscose artificial silk is dyed and softened in a bath containing Direct sky blue green shade, the ammonium salt of the acid ester of phthalic acid with a mixture of hexadecyl and octadecyl alcohols and Glauber's salt; (2) the ammonium salt of hexahydrophthalic acid oleyl acid ester or of stearylsalicylic acid is used to soften white viscose artificial silk web.  The following dicarboxylic acids are specified: adipic, succinic, ethylene-a  : b -dicarboxylic, isophthalic, terephthalic, and chlorphthalic acids.  For the esterification, alcohols obtained by reducing fatty acids or esters, e.g. castor or coconut oil may be used; olein alcohol, spermaceti alcohols, glycols obtained by hydrating unsaturated higher alcohols, montan wax and beeswax alcohols, the alcohols obtained by the oxidation of paraffins or the reduction of aliphatic ketones, e.g. palmitone or pentadecylmethylketone and polyglycols and glycerines, e.g. diethyleneglycolmonobutylether may also be used.  Substituted alcohols such as castor oil and oxystearic acid ethylester are suitable starting materials.  The following acylated oxycarboxylic acids are mentioned: lauryl, palmityl, stearyl and oleyl glycollic acids, laurylhexahydrosalicylic acid and palmitylsalicylic acid. Acylated lactic and oxynaphthoic acids may also be employed.