baber/WOPTO huggingface dataset:
Patent GB-1326838-A (GB)
Title: Semiconductor heterojunction television imaging tube
IPC: G09G1/22
Filed: 1971-09-20
Abstract: 1326838 Cathode ray tubes; semi-conductor devices RAYTHEON CO 20 Sept 1971 [30 Sept 1970] 43767/71 Headings H1D and H1K A target for a cathode ray tube comprises a first layer of semi-conductive material covered with an insulating layer having a greater resistance along the layer than through the layer. In the image pick-up tube shown in Fig. 1 the target comprises a 0À5 mil thick semiconductor disc 13 supported in a metal ring 17 and coated on one side with a transparent conductive layer 16 and on the other side with a layer 18 of antimony trisulphide 1000-5000 Š thick. If the disc 13 is doped with phosphorus and has 10<SP>19</SP> carriers/cm<SP>3</SP>, the layer 16 may be replaced by doping the surface more heavily to provide 10<SP>21</SP> carriers/cm<SP>3</SP>. The layer 18 may alternatively be of silicon dioxide doped with 1 % boron and have a thickness of 100-10,000 Š. The target is biased positively with respect to the cathode by a battery 27 and its front surface is charged negatively by the beam and discharged through the semi-conductor in areas illuminated by the image; undischarged areas reflect the scanning beam to an output electrode 30. This electrode comprises an N-type layer 31 and a P-type layer 32 supported on an end plate of anode 23; the junction is back biased by a battery 33 and the output signal is taken across resistance 34 via capacitor 35. In another construction for a monoscope (Figs. 4-6, not shown) the target comprises a silicon wafer À007 to À010 inch thick supported on a conductive signal plate and coated with a layer of silicon dioxide À04 mils thick in which lines are etched to form a fount of characters. A layer of insulating material having a conductive band close to that of the semi-conductor is deposited to a thickness of 0À4 microns over the oxide and an aluminium contact layer is deposited over the insulating material. The target is reverse biased by a potential of 15 volts applied between the signal plate and the aluminium contact layer, and when a scanning electron beam strikes the oxide layer the electrons are captured in the layer and there is no conduction through the target; when the beam impinges in a region where there is no oxide layer the electrons penetrate into the junction region of the semiconductor where multiplication of the current occurs, for example by a factor of 200, and there may also be a slight power gain.
Patent GB-989658-A (GB)
Title: Ink cartridge and spacer device
IPC: B43K5/14
Filed: 1962-11-20
Abstract: 989,658. Reservoir pens. SANFORD CORPORATION OF LIBERIA. Nov. 20, 1962 [Dec. 29, 1961], No. 43792/62. Heading B6P. In order that ink cartridges 26 of the same length may be used in pens having cartridge-receiving spaces 24 of different lengths, the cartridges are made of shorter length than the spaces 24 and a spacer device 28 is provided by means of which a cartridge can be properly positioned and held firmly in the different pens. The spacer 28 comprises two cylindrical parts 50, 52, joined by a part 48 and a tapering part 54, the part 50 being of slightly greater diameter than the part 52. The cartridge 26 has a plug 34 at one end the opening 42 in which is closed by a thin membrane before the cartridge is inserted in the pen. For use in a taperedbarrel pen, Fig. 2, the two parts 12, 14 of the barrel are separated, the spacer 28 is placed in the part 14 with the end 52 abutting against a rim 25, the cartridge is inserted, and the parts 12, 14 are reconnected so that the cutter nozzle 44 on the barrel part 12 will pierce the membrane in the opening 42. If a cartridge is to be employed in a pen with a shorter and cylindrical cartridge space, the part 52 of the spacer is broken off, and the remaining part inserted into the part 14 of the barrel with the spacer part 50 engaging the rim 25 (Fig. 3, not shown), the cartridge then being inserted and the barrel parts reconnected as before. The two parts 50, 52 have different diameters, so that by turning the spacer end for end it can be used in pens having different diameter rims 25.
Patent GB-1002808-A (GB)
Title: Improvements in or relating to electromagnetic wave hybrid junctions
IPC: H01P5/19
Filed: 1961-12-07
Abstract: 1,002,808. Waveguide hybrid Junctions. WESTERN ELECTRIC CO., Inc. Dec. 7, 1961 [Dec. 23, 1960], No. 43808/61. Heading H1W. A hybrid junction for electromagnetic H 01  circular mode energy comprises two intersecting waveguides 11, 12 enclosing a common volume across which extends a semi-reflecting member 13. The member effects an equal division of the energy incident upon it, e.g. energy from input port 17 is partly reflected towards port 18 and partly transmitted towards port 19. It is necessary that the energy be transmitted in mode approximating a plane-wave mode and, to this end, the waveguides are dimensioned to have cut-off frequencies considerably below the working frequencies. It is stated that, under these circumstances, energy division may be effected by a dielectric sheet, by a conductive mesh or by a conductive sheet formed with a pattern of circular holes. The dielectric sheet may be of glass one quarter-wavelength thick at mid-band frequency. The reflectivity of the member may be changed to give an unequal division of power. The band-splitting filter of Fig. 5 comprises two such hybrid junctions 51 52 and filters 53, 54 arranged in known fashion in the transmission arms. The filters may consist of short sections having raised cut-off frequencies.
Patent GB-438874-A (GB)
Abstract: 438,874. Stencilling-apparatus. WHEELWRIGHT, Ltd., J. S., 19A, Coleman Street, London, WHEELWRIGHT, J. S., The Corner, Three Elm Lane, and STEWART, R. F., 36, Hadlow Road, both in Tonbridge, Kent. Feb. 16, 1934, No. 5239. [Class 100 (ii)] In printing-apparatus employing a stencilscreen adapted to be raised and lowered with respect to material supported on a flat bed, one end of the screen is lifted away from the printed material and the remainder is progressively lifted as a peeling action until the whole screen is clear, whereupon the material is moved away and the screen is lowered parallel to a fresh surface to be printed. Fig. 1 shows a plan of a machine comprising a stencilholder 12 mounted on a carriage 6 movable along a flat bed to print repeatedly on material held on the bed by suction or other means. The carriage has rollers 4 at one side and grooved rollers 5 at the other. The holder 12 is supported by links 9, Fig. 3, pivoted to levers 8, 8a fixed to shafts 7 rotatably mounted in the carriage 6, the weight of the stencil being counterbalanced by weights on arms 27 fixed to the shafts. A pin 13 on one of the levers 8 rides in a slot 14 in a cam 15 adapted to be rocked about a pivot 17 by means of a handle 16, and the lever 8a at the same side of the machine has a pin 26 riding in a slot 24 in a cam 23 connected by a rod 21 to a link 20 carrying a pin 19 engaging a second slot 18 in the cam 15. During the first part of a movement of the handle 16 to the left in Fig. 3, the levers 3 are raised and consequently raise the stencil-holder about the opposite end, the pin 19 meanwhile travelling to the end of the slot 14. On further movement, the rod 21 is pulled to the left to rock the cam 23 and raise the other end of the stencil until it is parallel with the bed. On reverse movement of the handle 16, the pin 19 drops into a notch so that both cams 15, 23 turn together and lower the stencil parallel to the bed, a pin 32 on the rod 21 engaging a stop 33 at the end of the movement to restore the pin 19 to the slot 18 ready for the next operation. The holder 12 is provided with guide bars 29 sliding in guides 30 mounted on the carriage, the guides at one end being pivotal on pins 31 such that the pivotal axis coincides with the axis about which the holder 12 tilts. After an impression, the stencil-carriage 6 is moved along the bed to print on the next section of material, registration being effected by means of a series of C clamps adjustable along the bed and slotted to receive a pin 34 on the end of a lever 35 pivoted to the carriage. A stop 38 on the cam 15 engages the lever 35 when the stencil has been raised and releases the pin 34 to allow the carriage to be moved to the next position. The stencil is stretched in a frame clamped within the holder by bars 47 one at each end of the frame. Each bar is engaged by two spring- pressed clamping-heads, each of which is carried by a lever 45, crank-members for releasing the pressure being fixed to a shaft 53 rotated by means of a handle 55, both handles being accessible from the same side of the machine.
Patent GB-1002758-A (GB)
Title: Anti-pendulation device for jig cranes
Inventor: PATTERSON JOSEPH CANADA
IPC: B66C13/06
Filed: 1962-11-20
Abstract: 1,002,758. Preventing the load of jib-cranes from swinging. C. H. WHEELER MANUFACTURING CO. Nov. 20, 1962, No. 43909/62. Heading B8B. The load of a jib-crane is prevented from swinging by lines 18, 19, Fig. 2, which are wound on to drums 16, 17 at the same rate that a hoisting line 13 is wound on to a drum 12. All the drums are driven by a single motor through a shaft and differentials 28, 29. In addition, the drums 16, 17 may also be driven by motors 30, 31 which have electric brakes 30a, 31a. Pulleys 22, 23 may be mounted directly on the jib 4, Fig. 3, instead of on an arm 24, Fig. 2. In a further embodiment the drums 16, 17 and their motors 30, 31, Fig. 6, are mounted on top of the king-post of the crane, the drive from the drum 12 to drums 16, 17 being through a pulley 14 and a shaft and differentials 28, 29. The operator, who sits in a chair 32, Fig. 4, controls the motors 30, 31 to wind in either of the lines 18, 19 faster than the hoisting line according to which way the load is tending to swing, by depressing foot pedals 33, 34. Pushbuttons 37, 38 control the motors when line is paid out. Level luffing is effected by leading the hoist rope 13, Fig. 1, over a pulley 14 on top of the king-post. The king-post and jib are slewed by ring gear 7.
Patent GB-1443797-A (GB)
Title: Electrophotographic materials
IPC: C08F8/30
Filed: 1973-09-20
Abstract: 1443797 Modifying polyvinyl alcohol EASTMAN KODAK CO 20 Sept 1973 [25 Sept 1972] 44150/73 Heading C3P [Also in Division G2] Polymers of formula wherein R is a covalent bond or an alkylene group comprising 1 to 6 carbon atoms and each R<SP>1</SP> is an aromatic radical optionally substituted with an alkyl or alkoxy group having 1 to 6 carbon atoms, are made by the reaction of a vinyl polymer containing free hydroxyl groups with an appropriate acid chloride derivative of a triarylamine. Poly - (vinyl - p - diphenylaminobenzaldehyde acetal-co-vinyl-m-bromobenzoate) is made by the reaction of polyvinyl alcohol with 4-formyltriphenylamine and then bromobenzoyl chloride. Poly-(vinyl-m-bromobenzoate - co - p - diplienylaminobenzoate) - is afforded by the reaction of polyvinyl alcohol with bromobenzoyl chloride and then diphenylaminobenzoyl chloride. Poly-(vinyl-p-diphenylaminophenyl propionate) is obtained by the reaction of polyvinyl alcohol with diphenylaminophenylpropionyl chloride. This reaction scheme can be modified by treating with bromobenzoyl chloride prior to the propionyl chloride and thus yield poly-(vinyl-m-bromobenzoate co-p-diphenylaminophenyl propionate).
Patent GB-1490575-A (GB)
Title: Body for a road or rail vehicle or for a container
IPC: B61D17/04
Filed: 1974-12-02
Abstract: 1490575 Thermal insulation PIKAZINZENYRSKY PODNIK 2 Dec 1974 44439/74 Heading F4H [Also in Divisions B7 and B8] A body for a road or rail vehicle or for a container comprises spaced inner and outer tubes 2, 1, each formed by winding synthetic resin impregnated material, e.g. a filament and/or fabric, in several layers, preferably in criss-cross formation. The inner tube is reinforced by circumferential protrusions, and thermal insulation material is provided between the tubes, this material and the tubes being securely interconnected. In one embodiment, the inner tube is formed around a former, Figs. 4, 5 (not shown), which may be provided with recesses, Fig. 5 (not shown), to form strengthening ribs in the inner tube. Additionally, reinforcing components may be provided in the former recesses to be joined to the inner tube. Alternatively, reinforcing elements may be provided in recesses formed in the outer surface of the inner tube. Conduits for electrical wiring, heating, ventiation and/or for water may be provided in the thermal insulation material. The thermal insulation material may be foamed polyurethane, polyvinyl chloride or polystryene.
Patent GB-1209288-A (GB)
Title: Improvements in or relating to diazotype materials
Inventor: MOORE RALPH GOWER DAVIES
IPC: G03C1/54
Filed: 1969-09-09
Abstract: 1,209,288. Diazonium salts. GAF CORP. 9 Sept., 1969 [11 Sept., 1968], No. 44569/69. Heading C2C. [Also in Division G2] The invention comprises compounds of the formula ArN 2 ZF 6 , where Ar is a substituted aromatic radical and Z is arsenic or antimony. The compounds are prepared by reacting together compounds of the formulµ ArN 2 X and MZF 6  where X is an anion which forms a soluble salt with ArN 2  and M is hydrogen, a metal or ammonium.
Patent GB-1365616-A (GB)
Title: Method of manufacturing silanes
IPC: C01B33/04
Filed: 1972-09-27
Abstract: 1365616 Preparation of silanes TOKYO SHIBAURA ELECTRIC CO Ltd 27 Sept 1972 [1 Oct 1971] 44572/72 Heading ClA Silanes having the formula SinH2n+2 are prepared by disproportionating alkoxysilane of the formula HnSi(OR)4-n in the presence of an alcoholate of the formula ROM (where M is an alkali metal, alkaline earth metal or Al; R is an alkyl group containing 1-3 carbon atoms and n is 1-3). The alooholate may be dissolved in a tetra-alkoxysilane of the formula Si(OR)4. SiH4 may be prepared by disproportionating HSi(OC2H5)3 in the presence of Si(OC2H5)4 and 0À1-0À4% by wt. C2H5ONa.
Patent GB-923532-A (GB)
Title: Phosphine oxides and methods of preparing same
IPC: C07F9/53
Filed: 1960-12-30
Abstract: Secondary and tertiary phosphine oxides are prepared by intimately contacting a primary or secondary phosphine oxide with an olefinic compound in the presence of a catalyst or a radiation source which is a free radical initiator and which catalyst or radiation source is non-oxidising to the reactants under the conditions of the reaction, and when the olefinic compound has a nitrile, amide or ester group on one of the olefinic carbon atoms, the catalyst may also be a strong base.  The tertiary phosphine oxides may be prepared from either primary or secondary phosphine oxides.  Suitable primary phosphine oxides include those of formula RP(O)H2 where R is substituted or unsubstituted C1-8 alkyl or alkenyl, cycloalkyl, or substituted or unsubstituted aralkyl, alkaryl or aryl; suitable substituents include cyano, alkoxy, halogen, hydroxy and carbalkoxy.  Suitable olefinic compounds include those of formula CH2=CHX where X is hydrogen, halogen, C1-16 alkyl, phenyl, CH2OH, CH2NH2, CN, CONH2, COOR1 or OR11, R1 and R11 being C1-6 alkyl.  Suitable strong bases include alkali metal hydroxides and alkoxides, and polysubstituted guanidines.  A solvent may be used.  Temperatures of -10 to +150 DEG C. are mentioned.  Elevated pressure may be desirable.  Tertiary phosphine oxides of formula RP(O)(CH2CH2X)2 where X is CONH2 or COOR1, R1 being C1-6 alkyl and R being substituted or unsubstituted C1-18 alkyl or alkenyl, cycloalkyl or substituted or unsubstituted arakyl, alkaryl or aryl are claimed per se.  Specification 912,269 is referred to.
Patent GB-919744-A (GB)
Title: Method and apparatus for lengthening electrical pulses
IPC: H03K5/04
Filed: 1960-12-30
Abstract: 919,744. Valve pulse circuits. BRITISH PETROLEUM CO. Ltd., ROACH, G. F., and FRANKLIN, R. O. Dec. 12, 1961 [Dec. 30, 1960], No. 44758/60. Class 40 (6). [Also in Group XL (b)] In a pulse lengthening circuit a capacitor is charged by each input pulse to a voltage dependent on the pulse amplitude, each input pulse starting a timing circuit which discharges the capacitor after a predetermined period. In Fig. 4, random 1 microsecond pulses are amplified by V3 and charge a capacitor C1 via a diodeconnected valve V1. Each input pulse is further amplified at V4 before being used to trigger a mono-stable multivibrator V7, V8. The positive-going output from V8 is inverted by V6 and holds a discharging valve V2 cut off during the unstable period of the multivibrator (100 microseconds). At the end of this period V7, V8 revert to their stable state so that the discharge valve V2 is rendered conductive, discharging capacitor C1 and terminating the lengthened output pulse. The output pulse duration is adjustable by potentiometer R3. In Fig. 3, random input pulses are amplified at V3, V4 before being passed by V1 to charge capacitor C1. The amplitude of pulses at the anode of V3 is limited by over-driven valves V5, V6 before being fed to the grid of the discharge valve V2 to render that valve non- conductive. V2 remains non-conductive for a period depending on the time constant of resistors R1, R2 and capacitors C2, C3. The duration of the lengthened output pulse is hence adjustable by variable resistor R2.
Patent GB-1507294-A (GB)
Title: Process for preparing sorbic acid
IPC: C07C51/09
Filed: 1976-10-28
Abstract: 1507294 Sorbic acid NIPPON GOHSEI KAGAKU KOGYO KK 28 Oct 1976 [30 Oct 1975 25 Dec 1975 (2) 27 Dec 1975] 44853/76 Addition to 1448433 Heading C2C Sorbic acid is prepared by contacting y-vinyly-butyrolactone with at least one catalyst selected from the group consisting of (A) an acid selected from clay minerals, salts and double salts of phosphoric acid with metals, sulphates, boric acid, tungstic acid, phosphotungstic acid, silicotungstic acid, molybdic acid, phosphomolybdic acid, silicomolybdic acid, acetates of metals of Groups I-B, II-B, III-B, IV-B, V-B, VI-B and VIII of the Periodic Table, and propionates of metals of Groups I-B, II-B, III-B, IV-B, V-B and VI-B of the Periodic Table, (B) transition metal oxides, (C) metals of Group VIII of the Periodic Table and (D) halides of metals of Groups I-B, II-B, III-B, IV-B, V-B, VI-B and VIII of the Periodic Table, and recovering the resulting sorbic acid. Many of the compounds are listed. Cupric, molybdenum oxides, cupric oxide-zinc oxide, titanium dioxide-silica, -zirconium oxide and -zinc oxide are also mentioned as the transition oxides. The reaction may take place in a liquid or gaseous phase, in an inert gas or solvent.
Patent GB-1415526-A (GB)
Title: Solid preparation and their application to the dyeing and optical brightening of textile materials by the extraction process
IPC: C09B67/38
Filed: 1972-09-28
Abstract: 1415526 Solid preparations for textile dyeing and brightening CIBA-GEIGY AG 28 Sept 1972 [30 Sept 1971] 44879/72 Headings D1B and DIP Solid preparations used in textile finishing comprise (a) 9 to 75% by weight of an active substance, i.e. dyestuffs, and optical brighteners, (b) 90 to 15% by weight of an inert carrier substance which is insoluble in both aqueous and organic liquors, (c) 0 to 10% by weight of an adhesive. Inert carriers include kieselguhr powder, calcium carbonate powder, wood sawdust, asbestos, and plastics, preferred adhesives being mineral oils, oleic acid, gum arabic, carboxymethylcellulose, glycerin, ethylene glycol and sorbitan fatty acid esters. The preparations are obtained by homogenously mixing together the ingredients as above and optionally drying the product. The products are used to dye or brighten polyester polyamide, polyacrylonitrile and modified polypropylene by the extraction process. Mono-azo-, dis-azo and anthraquinone disperse dyes may be employed, preferably in amounts of 40% to to 70% by weight.
Patent GB-1126379-A (GB)
Title: Slip joint
IPC: F16D3/06
Filed: 1966-10-07
Abstract: 1,126,379. Shaft couplings. BORGWARNER CORP. 7 Oct., 1966 [15 Dec., 1965], No. 44967/66. Heading F2U. In order to eliminate backlash in a telescopic splined coupling a portion of the splines on one of the connected members are formed as fingers which are initially deformed so that they resiliently engage the splines of the other member. As shown the end portion of the outer sleeve 14 is reduced in diameter so that the tips 23 of the splines 22 are reduced to individual fingers which are bent inwardly as shown at 23a, whereby in use the fingers bear against the sides of the splines 20 on the inner shaft member 15.
Patent GB-948684-A (GB)
Title: Derivatives of ajmaline
Inventor: BONATI ATTILIO
Filed: 1961-12-18
Abstract: The invention comprises mono- and di-esters of the alkaloid ajmaline with saturated or unsaturated aliphatic mono- or poly-carboxylic acids having more than 2 carbon atoms in the molecule, or with partial esters of the polycarboxylic acids, or with halogenated saturated aliphatic carboxylic acids, or with halo-, nitro- or alkoxy-benzoic acids, and the acid addition and quaternary ammonium salts thereof, and the preparation of the esters by esterifying ajmaline with the appropriate acid halides or anhydrides. Pharmaceutical preparations, useful for regulating cardiac rhythm, comprise the foregoing compounds, with or without other medicaments, and an inert pharmaceutical carrier. They may be in forms suitable for enteral or parenteral administration, e.g. tablets or ampoules. Salts specified include ascorbates, salicylates and p-aminosalicylates.  The Provisional Specification comprises also esters with acyloxybenzoic acids.
Patent GB-1002967-A (GB)
Title: Improvements in padding and insulating materials and the manufacture thereof
IPC: D04H1/00
Filed: 1963-11-18
Abstract: The method of manufacturing padding and insulating material claimed in Specification 957,246 is modified by the addition of fire-proofing material to the powdered resin added to the fibre layer.  Sterilizing or rot-proofing preparations may be similarly added.
Patent GB-1092501-A (GB)
Title: Improvements in or relating to rolling mills
Inventor: BRENNAN DAVID
IPC: B21B38/10
Filed: 1963-11-19
Abstract: 1,092,501. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Nov. 18, 1964 [Nov. 19, 1963], No. 45605/63. Heading B3M. Apparatus for setting and indicating the roll gap in a rolling mill includes two counters 28 and 31 the first for indicating the pass between the rolls and the second for indicating the roll diameter, the second counter automatically indicating a revised roll gap when the first counter is reset in consequence of a roll change. The apparatus is conveniently associated with a mill having a pair of cantilevered rolls, one of which is adjustable by a screw operated wedge. For setting up the apparatus the rolls are moved together into contact and the counter 31 set by a knob 33 to indicate the diameter of the rolls. A clutch in counter 31 is then opened so that the counter 28 can be adjusted by the same knob, through a shaft 29, bevel gears 27, 24, and 26 and a shaft 20. For operation of the mill a clamp 30 locks the shaft 29, and any adjustment of the pass is transmitted to the counter 28 through a pinion 14, bevel gears 18 and 19, a rotatable differential cage 21, bevel gears 24 and 26 and the shaft 28. When the counter 31 is reset on changing the rolls, the counter 28 is simultaneously altered to account for the change in roll gap.