baber/WOPTO huggingface dataset:
Patent GB-143744-A (GB)
Title: Improvements in or relating to tyre-supporting rims
IPC: B60B25/12
Filed: 1919-07-02
Abstract: 143,744. Spaiel, A. July 2, 1919. Tyre attachments to rims.-A detachable rim 15 is formed with conical upper and lower surfaces co-axial with the wheel so as to engage with a conical portion of a rim 12 on the felloe, upwardlyturned portions 13, 16 engaging the beads of the tyre. The smallest diameter of either conical part is less than that of the bead of the tyre when the tyre is unconstrained. The parts are drawn together by bolts 19. The flange 13 may be formed separately from the part 12 and may be reversible. Specification 21440/11 is referred to.
Patent GB-1383159-A (GB)
Title: Photoconductive target of an image pickup tube
IPC: H01L31/00
Filed: 1973-04-06
Abstract: 1383159 Image pick-up tubes HITACHI Ltd and NIPPON HOSO KYOKAI 6 April 1973 [7 April 1972] 16596/73 Headings H1D A photoconductive target, containing a rectifying junction, for an image pick-up tube includes a photoconductive layer deposited on a light-transmissive conductive layer and including a portion 1000  or more thick formed by a sequence of at least two films, each 100  or less thick, formed alternately of at least two respective photoconductive materials, the photoconductive layer having a rectifying contact at at least one surface. As described (Fig. 1, not shown) a transparent conductive layer (2) deposited on a glass substrate (1) is covered with a 3 microns thick photoconductive layer (3) formed of alternate 20  Se and 7  AS2Se3 films, or similar films 50  thick each. In another embodiment (Fig. 4, not shown) a multilayer 5  Se/20  CdSe photoconductive layer is covered with a 1000  surface layer (7) of CdTe, ZnS, CdS, ZnSe, or CdSe. In another embodiment, Fig. 5, reverse breakdown is increased by the interposition of a 10 to 1000  thick insulating layer 10 of MnF2, PbF2, CaF2, MgF2, Al2O3, SiO, ZnS, or As2S3-e.g. 200  MnF2-between the conductive layer 9 and the photoconductive layer formed of a 3 microns thick selenium film 11 with a 1000  portion 12 formed of.alternate films of 20  Se and 12  Te. The photoconductive layer may in turn be covered by a 1000  Sb2O3 layer 13 which is preferably itself covered with a porous film of Sb2S3 or As2Se3' In a final embodiment, Fig. 6, a 500  ZnSe, ZnS, or CdSe film 16 is interposed between the conductive layer 15 and the photoconductive layer which consists of portions 17 formed by alternate 40  Se and 5  As films, and a central 2000  portion 18 formed by cyclically sequential 40  Se, 5  As, and 30 A Te, films, the whole being covered by a 1000  Sb2S3 film (19). The use of a plurality of photoconductive layers each less than 100  thick is stated to provide a spectral sensitivity which is intermediate between, rather than the sum of, that of the different materials constituting the various layers.
Patent GB-941519-A (GB)
Title: Electrical switch means
Inventor: HEWLETT STANLEY JAMES
IPC: H01H5/02
Filed: 1959-05-14
Abstract: 941,519. Contact-members for switches. UNITED GAS INDUSTRIES Ltd. May 13, 1960 [May 14, 1959], No. 16630/59. Heading H2B. The positive rocking movement of a pivoted lever 10 by an eccentric 9 on a shaft 8 moves contacts 15 between fixed contacts 16, 161 with a snap action due to a symmetrically positioned adjustable permanent magnet 17 which attracts magnetizable members 14, 141 to strain a spring 13.
Patent GB-111297-A (GB)
Title: Improvements in or relating to Buckles for Belts and the like.
Inventor: PENSUTI EMILIO
IPC: A44B11/24
Filed: 1917-11-13
Abstract: 111,297. Pensuti, E. Sept. 11, 1915, [Convention date]. Buckles.-In buckles for belts &c., the end bar 3 is provided with recesses 4 and is adapted to be rotated to free the pivoted prongs 2 by means of a flexible lever 5 having an eye 8 for the attachment of an operating cord. The lever 5 is provided with a bent extremity 6 adapted to engage the part 10 of the buckle frame 1. A pin 7 prevents axial movement of the bar 3.
Patent GB-600631-A (GB)
Title: Improvements in and relating to power control systems for internal combustion engines for aircraft
IPC: F02D25/02
Filed: 1945-06-30
Abstract: 600,631. Automatic control systems for multiple engines of aircraft. FISHER, I., and FISHER, A. G. (Representatives of FISHER, A. D.). June 30; 1945, No. 16688. [Class 38 (iv)] Speed and supercharger gearchange control.-In a control system for a plurality of aircraft engines, an overriding control operates on each engine speed governing means to ensure automatic accurate synchronisation of the engines, while the supercharger gearchange of each engine is power operated under control of a pressure - sensitive device, switching means being provided to select a particular engine for controlling the speed and super. charger gearchange of the other engines, or to permit super. charger gearchange to be car. ried out manually, or independently under automatic control, for each engine. In the Figure, the engines drive similar alternators 31, 32, 33, 34 (which may be 3-phase) each feeding one side of the associated synchroriising relays 21, 22, 23, 24 of known type, the other sides of which are fed from A.C. mains 27, 27a, 27b, which may be optionally connected by the multiple ganged switch 28, 28a, 28b, to the output of the alternator of any one engine which then acts as master. The synchronising relays compare the frequencies of their associated alternators with the selected master frequency, and operate switches 20 in such sense as to reduce the frequency difference by energising the reversible D.C. motors 11, 12, 13, 14 mechanically coupled to the speed control means of the appropriate engines. Existing small tachometer alternators may be used as alternators 31, 32, 33, 34, and the switches 20 may be operated indirectly by solenoid relays in known manner. Larger alternators may be used, when the synchronising relay, two way switches and reversible motor of each engine may be replaced by a differential type self-synchronising motor whose rotor is linked mechanically to the engine speed control. For supercharger gearchange control, each engine has a pressure sensitive device 61, 62, 63, 64 responsive to atmospheric or air-intake pressure which operates a switch 45 controlling a double acting solenoid 51, 52, 53, 54 operating the supercharger gear change direct or through a relay or servo-mechanism. As shown, the " change up " and " change down " leads are respectively inter-connected and the master engine for supercharger gear change is selectable by the multiple switch 38 which may be ganged with the switches selecting the master engine for synchronisation. Further switching (not shown) may be provided to enable the supercharger gear change mechanism of each engine to be operated, manually and independently, automatically and independently or automatically and under control of a master engine as described.
Patent GB-1421090-A (GB)
Title: Capacitor and dielectric impregnant composition therefor
IPC: C10N40/16
Filed: 1974-04-16
Abstract: 1421090 Dielectric fluids MONSANTO CO 16 April 1974 [4 May 1973] 16688/74 Heading C5F [Also in Division H1] An insulating composition for impregnating capacitors comprises a mixture of a diaryl sulphone and a carboxylic acid ester and optionally 0À001 to 8% of an epoxide stabilizer. The aryl radical may be phenyl, naphthyl or indanyl, optionally having up to three substituents selected from halogen and C 1  to C8 alkyl.
Patent GB-925008-A (GB)
Title: Improvements in or relating to mountings for oscillatable balance wheels for time pieces
Inventor: KIENZLER FREDERICK
IPC: G04B18/02
Filed: 1959-05-15
Abstract: 925,008. Clocks. S. SMITH & SONS (ENGLAND) Ltd. May 13, 1960 [May 15, 1959], No. 16697/59. Class 139. In a timepiece the upper end of the helical balance spring is held by a clamping member 22, Fig. 4, in a slot 18 in an extension 17 of a collet 16 fixed to or integral with a bush 11 carried by a bracket 10. The curb pins 27 depend from a worm wheel 13 which is frictionally mounted on the bush 11 and which is rotatable by a worm on a regulating spindle. A lug 32 on the wheel 13 extends into a slot in the bracket 10 to limit the rotation of the wheel 13. The balance assembly may be of the kind described in Specification 735,471.
Patent GB-1045064-A (GB)
Title: Process for the preparation of cyclic octenes
IPC: C07C5/05
Filed: 1965-04-21
Abstract: Bicyclo[3,3,0]octene-2 or, in the presence of hydrogen, cyclooctene, is formed from a cyclooctadiene in the presence as catalyst of a hydride of a Group 1A or 2A metal.  The starting material may be 1,3-, 1,4- or 1,5-cyclooctadiene which may contain up to 6 C1-C10 alkyl, aryl or aralkyl groups.  The hydride may be mixed with other metal hydrides or be present as a mixed hydride with a Group 3 metal, and is used in an amount 1-30% mol of the cyclooctadiene.  There may also be present an alkaline cocatalyst, e.g. an alkali metal derivative of a secondary amine or an alkali(ne earth) metal alkoxide.  Batchwise reaction is preferred in the presence of an ether, hydrocarbon or tertiary amine solvent at 50-350 DEG  C. for several hours.  When hydrogen is present the initial pressure is preferably up to 238 atmospheres.
Patent GB-967401-A (GB)
Title: Proximity responsive device
IPC: H03K17/95
Filed: 1962-05-02
Abstract: 967, 401. Detecting conductive bodies. BROOKHIRST IGRANIC Ltd. May 2, 1962 [May 25, 1961], No. 16831/62. Heading G1N. [Also in Division H1] A proximity responsive device comprises a sensing coil system in which equal and opposite alternating voltages are normally produced and which gives an alternating output voltage on the approach of a conductive member, the output voltage modulating the normally unidirectional output voltage of an amplifier to control a load, the coil system having coaxial primary and secondary coils of equal mean diameters substantially equal to the distance between successive coils. Primary coil 24 is arranged between secondary coils 26, 28 on a bored cylindrical mounting member 6 containing a fixed core 22 and a tuning slug 8. Mounting member 6 is located in a housing 2 which also contains printed circuit boards 10, 12 and potting material 5. The rear end of the unit is adapted as a connector plug and the sensing end is located in a recess in a supporting member 3. Primary coil 24 forms part of the tuned circuit of an oscillator, and the series connected secondary coils 26, 28 form a resonant circuit with capacitor C4, tuned to the oscillator frequency. In the absence of a conductive member slug 8 is adjusted so that the voltages induced in 26, 28 are equal and opposite. Coils 26, 28 are coupled through capacitor C5 to an amplifier comprising an emitter-follower stage including transistor T2, and a second stage including transistor T3. In the balanced state D.C. flows through transistor T3 and resistors R5. Transistor switch T4 is also conductive and shunts a load connected between terminals 18A and 18B, diode RT3 matching the voltage drop across transistor T4. When a conductive member approaches the device the D.C. output from the amplifier is amplitude modulated by the A.C. output from coils 26, 28. The modulation is detected in a voltage doubling detector consisting of capacitors C7, C8 and rectifiers RT1, RT2, thereby switching off transistor T4 and applying a voltage to the load. The sensitivity may be adjusted by connecting a resistor between terminals 18A and 18F. Adjacent units may operate at different frequencies to prevent interference.
Patent GB-145519-A (GB)
Title: Improvements in the preparation of dye-baths
IPC: D06P1/46
Filed: 1920-06-22
Abstract: Albumenoid matter of vegetable or animal origin is heated with caustic soda of 2-10 per cent strength to give products, of the type of protalbinic or lysalbinic acids, for use in preparing dye-baths of soluble dyes.  In an example, a product is obtained by heating casein with dilute caustic soda solution, cooling, adding calcium hydrate and a little magnesia, stirring, filtering, neutralizing with formic acid, and evaporating in racuo.ALSO:In dyeing animal fibres with soluble dyes products, of the type of protalbinic or bysalbinic acids, and obtained by heating vegetable or animal albumens with caustic soda of 2-10 per cent strength for 2-3 hours at 80-85 DEG C., or salts thereof, are added to the dyebaths; such addition facilitates dyeing the animal fibres and also renders the wool more soft, glossy, and elastic. An example is given of a bath containing dianil brown 5G, ammonium formate, sodium sulphate, and a hydrolyzed casein product; this product is obtained by heating casein with dilute caustic soda solution, cooling, adding calcium hydrate and a little magnesia, stirring, filtering, neutralizing with formic acid, and evaporating in vacuo.  A product obtained from glue is also referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to a product obtained from glue and to the dyeing of mixed goods.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1123097-A (GB)
Title: Process for the dimerisation of unsaturated compounds
Inventor: CORNFORTH DAVID ARTHUR
IPC: B01J31/00
Filed: 1966-04-18
Abstract: Michael acceptors are dimerized by contacting them with a catalyst comprising a mixture or compound of a salt or complex of copper or a metal selected from Group IVa, Va, VIa or VIII of the Periodic System and an aluminium alkyl or aryl.  The reaction may be effected at -60 DEG , to +200 DEG  C. in the liquid or vapour phase, preferably under anhydrous conditions, and optionally in an inert solvent under elevated pressure in an inert atmosphere.  The reaction may also be effected in the presence of hydrogen or a hydrogen donor in which case a hydrodimer is obtained.  The metal salt employed may be an organic or inorganic acid salt, the metal complex may be a p -bonded metal complex and the metal in said salt or complex may be, for example, copper or one of the transition metals such as cobalt, iron, nickel, titanium, vanadium or chromium.  Specified salts or complexes are cuprous chloride, copper (II), cobalt (II), nickel (II), chromium (III) and iron (III) acetylacetonates, copper (II) glycinate, nickel (o) bis-(cyclo-octa-1,5-diene), palladium (II) chloridetriethylamine, copper (II) acetate, titanium tetrachloride and tetra-n-butyltitanate.  The aluminium alkyl compound employed preferably contains a C1- 4 alkyl group and in the aluminium aryls employed the aryl group may be phenyl, substituted phenyl, diphenyl or naphthyl. Specified aluminium alkyls or aryls are triethyl- and tri-isobutyl-aluminium, diethylaluminium chloride, ethylaluminium dichloride and triphenyl- and ethoxydiethyl-aluminium. The components of the catalyst are preferably employed in approximately equal proportions and the catalyst may be used in an amount of from 0.001-10% by wt. based on the weight of the Michael acceptor.  In examples, acrylonitrile is dimerized.
Patent GB-111344-A (GB)
Title: Improvements in the Connection of Electric Cables to Junction Boxes or like Apparatus.
IPC: H02G15/013
Filed: 1916-11-25
Abstract: 111,344. British Insulated & Helsby Cables, Ltd., and Blades, R. W. Nov. 25, 1916. Junction boxes. - Electric cables having a sheathing of rubber, hard braided cord, spiral ropes or wires, &c. are secured to junction and other boxes 1 by means of a gripping-ring comprising several segments 4 having irregularly formed gripping surfaces which are adapted to be pressed into the cable sheathing 3. In the construction shown in Fig. 1, the segments 4 are pressed on to the cable by screw studs 7, and the connexion is rendered fluid-tight by packing 5 engaged by the gland 6. In the modification shown in Fig. 2, the coned segments 4 are pressed against a coned seat bv the gland 8. in further modifications, the coned segments are engaged bv coned parts forced inwards by, cr formed integral with, the gland 8.
Patent GB-690989-A (GB)
Title: Improvements in or relating to filters
IPC: B01D46/24
Filed: 1949-08-27
Abstract: 690,989. Filters; filtering media. POOLE, R. Nov. 14, 1950 [Aug. 27, 1949]. No. 16949/49. Class 46 [Also in Groups IX and XXVIII] A filter element or filter comprises a frame or support and a series of strips or turns of striplike material carried by the support with their adjacent portions overlapping and means constituting distance pieces or spacing members separating the overlapping portions so that liquid can flow through the gap thus formed between them as well as directly through the material. The filtering material may be a narrow strip or web so woven as to provide a series of parallel rib-like projections extending transversely across one face of the material which form between them openended spaces when the ribbed face of one length overlaps the unribbed face of another length. As shown in Fig. 1, transverse rib-like projections A<SP>1</SP> are formed by lifting portions of groups of adjacent warp threads above the level of the adjacent surface of the fabric while leaving unlifted threads spaced apart by the lifted portions and by passing under such lifted portions a number of parallel weft threads A<SP>2</SP>. A filter element incorporating such material may comprise a rectangular metal frame B, Fig. 3, across which extend parallel strips B<SP>1</SP> of filter material of the form shown in Fig. 1. with adjacent portions overlapping and with the strips united to the sides of the frame by metal stitching C, C<SP>1</SP>. The overlapping portions of the strips are united by spaced rows of stitching D. A series of parallel partly overlapping strips of filtering material F of the same form may be supported by a backing G of metal gauze, Fig. 5, united to the filter material by spaced rows of stitching H at right angles to the length of the strips, the assembly being pressed into corrugated form and secured in a rectangular frame E of channel section. In another embodiment filtering material K may be wound around Tods J<SP>3</SP>, Fig. 6, extending between corners of end walls J, J', with adjacent turns partly overlapping while the end turns K' and K<SP>2</SP> are continued around the framework in planes parallel to the end walls to engage the edges of the end walls. An outlet passage J<SP>2</SP> is provided. In a modification the end walls are circular and are joined by a cylindrical wall of metal gauze around which the filtering material is wound helically. In these two cases the overlapping portions need not be united by stitching or the like. The distance pieces or spacing members may alternatively be formed separately from or secured to the face of the strip instead of integral with it. The strip-like material may be woven so as to be more dense over one edge portion than over the other so that overlapping portions differ in density. The dividing line between the more densely and less densely woven parts may be marked by a distinctlycoloured warp thread A<SP>3</SP>, Fig. 1, so as to indicate the correct degree of overlap. Specification 644,391 is referred to.
Patent GB-1045123-A (GB)
Title: Multiple speed bicycle hub
IPC: B62M11/14
Filed: 1965-04-22
Abstract: 1,045,123. Change-speed gear. E. A. L A  BRIE, Jr. April 22, 1965. No..16990/65. Heading F2D. In a change-speed planetary gear hub for a bicycle, gear-shift is effected by momentarily back-pedalling to turn, through a one-way clutch (Fig. 2, not shown), an axially located cam ring 23 so that a non-rotatable follower ring 24 and a selector sleeve 16 are moved axially to engage a clutch dog 15, in an input sleeve 13, alternatively with a planet carrier 5 or a ring gear 4 of a train having a permanently fixed sun 2, the clutch dog 15 being urged leftwards against a retaining lip 32 of the sleeve 16, on which it is rotatably mounted, by a compression spring 22 so that, when engaging pins 8 of the planet carrier for overdrive, the dog 15 is brought resiliently into engagement with the pins 8 to prevent damage. In the direct, reduced, overdrive hub shown, the rings 23, 24 have axial interengaging teeth of three heights, so that successive back-pedalling movements of the sprocket 12 locate the ring 24 axially at its various ratio positions in the sequencereduced, direct, overdrive, reduced-an adjustable tension spring 29 acting through a transverse pin 31 passing through slots in the fixed axle 1 to urge the ring 24 against the ring 23. For reduced drive, the clutch dog 15 engages dogs 14 of the ring gear and locks out of action the pawls of a one-way clutch 11 between the ring gear and the hub 6, the drive issuing from the planet carrier 5 through a one-way clutch 25 to the hub 6. For direct drive the dog 15 releases the pawls of the one-way clutch 11 for engagement to drive the hub from the ring gear, which is still engaged by the dog 15. For overdrive, the dog 15 engages the pins 8 of the planet carrier 5, the drive issuing from the ring gear 4 through the one-way clutch 11.
Patent GB-824555-A (GB)
Title: Improved fuel oils
IPC: C10L1/18
Filed: 1958-05-28
Abstract: A fuel oil composition comprises a fuel oil, an oil-soluble ashless detergent and an oilsoluble organic salt of a metal of Group IV of the Periodic Table.  Relative proportions by weight of salt and detergent added are preferably from 25 to 90% and 10 to 75% respectively, these substances together forming 0.001 to 0.5% by weight of fuel oil.  Salts are of fatty acids, e.g. palmitic, stearic, erucic, oleic, ricinoleic, or of naphthenic, abietic, or petroleum sulphonic acids.  Specified salts are lead oleate, lead and tin naphthenates, titanium and thorium petroleum sulphonates. Ashless detergents, unspecified, may be obtained by copolymerizing unsaturated mono- and/or dibasic acids, or alkoxy derivatives thereof, including ester derivatives.  Esters derived from C4 to C20 alcohols and maleic and/or fumaric acid, or mixtures of these esters, and alkoxylated partial esters, and vinyl esters of C2 to C6 monobasic acids, e.g. vinyl acetate, and also esters derived from alkyl-substituted acrylic acid and C4 to C20 aliphatic alcohols, or amino alcohols, can be used as detergents.  Condensation products of an oil-soluble petroleum sulphonate and an alkyl polyamine, e.g. ethylene diamine and triethylamine, may also be used.  In an example a detergent was prepared by condensing the mono-ester derived from maleic anhydride and a C9 oxo alcohol with ethylene oxide, and copolymerizing 8% of the product with 37% of a C9 oxo alcohol maleofumarate, 35% of a C16 to C17 oxo alcohol maleofumarate and 20% of vinyl acetate. Other detergents specified are monosulphate of ethylene diamine and the petroleum sulphonates of ethylene diamine and triethanolamine.
Patent GB-991916-A (GB)
Title: Impedance transformer circuit including a dielectric amplifier
Inventor: AMIRAGOFF A
IPC: H03F11/00
Filed: 1961-05-10
Abstract: 991,916. Dielectric amplifiers. ETABLISSEMENT POUR APPLICATIONS ELECTRONIQUES. May 10, 1961 [May 23, 1960; Nov. 21, 1960], No. 17039/61. Heading H3B. An impedance transforming circuit accepts an input from a signal source with a high internal impedance and gives a signal from an output circuit with a low internal impedance. The circuit includes a dielectric amplifier with a biased semi-conductor diode Cv serving as a variable capacitor. A linear capacitor Cc with diode Cv and inductor L1 form a tuned circuit. The diode Cv is controlled indirectly by a signal from terminals A, B (A being negative with respect to B) to vary the tuning, and thereby to vary the response of the circuit to a fixed frequency drive. A battery B1 drives biasing current through diode Cv in series with a second diode D2. In effect the voltage signal on A, B biases D2 to control the bias current in Cv. A current is induced in the tuned circuit by a constant frequency current in coil L2. The induced current is rectified by a diode D1 and passes a low-pass filter Lf, Cf1, Cf2 to a voltmeter V and a micoammeter M. A small change in the bias voltage on A, B controls D2 to produce a big change in the output current. The circuit may be used to operate a relay (Fig. 4, not shown) in a circuit employing transistors.