baber/WOPTO huggingface dataset:
Patent GB-530936-A (GB)
Title: Improvements in or relating to electron discharge tube amplifiers
IPC: H03F1/16
Filed: 1939-07-06
Abstract: 530,936. Valve generating circuits. TELEFUNKEN GES FUR DRAHTLOSE TELEGRAPHIE. July 6, 1939, Nos. 19737 and 19738. Convention dates, July 6, 1938 and Nov. 18, 1938. [Class 40 (v)] A neutralized amplifier, particularly for ultra short waves and adapted for frequency doubling, comprises a pair of valves, one of which may be replaced by an impedance simulation, with the anodes connected together and the input applied in push-pull and with an impedance connected between the anodes and the mid-point of the input circuit and having a tapping connected to through impedance to the cathode circuits. Fig. 1 shows a frequency doubling arrangement having an input circuit 3 and an output circuit 4 with a tapping connected to the junction of cathode impedances 5, 51. If the second valve is unheated or replaced by an impedance frequency doubling is not effected. Fig. 3 shows an inductance 2 as the valve simulation with the output taken from a coupled coil 6. In a modification, Fig. 2 (not shown) the valve cathodes are connected by an inductance to a tapping on which a variable common cathode impedance, connected to a tapping on the output circuit, is connected. The cathode circuit impedances may be constituted by Lecher wires. The grid and anode circuits may be interchanged so that the latter is the input circuit. In a further modification the effect of the inductance of the anode and cathode leads may be overcome by subdividing the output impedances into parallel paths 4a, 4b, Fig. 5, with the ends connected by a variable capacity Cu. A tuning capacity Ca may be connected to the mid-point of the input circuit for tuning the output circuit.
Patent GB-1027295-A (GB)
Title: Tripod structure
IPC: B66F3/24
Filed: 1963-05-17
Abstract: 1,027,295. Hydraulic jacks. COMPAGNIE FRANCAISE THOMSON-HOUSTON. May 17, 1963 [May 17, 1962], No. 19737/63. Heading B8J. A structure which may be used for supporting a turret assembly, e.g. a radar antenna, comprises a pedestal frame 1 mounted on three hydraulically operated leg assemblies L1, L2, L3. Each of the assemblies has a load-transmitting spherical member 3, 6, the member of assembly L1 being fixed to a base 58, that of assembly L2 being displaceable towards and away from the fixed member 36, and the member 36 of assembly L3 being displaceable in a horizontal plane. The method of supporting the assemblies L2, L3 allows for differential thermal expansion between the frame 1 and a bed plate 38 anchored in a concrete footing 39. Leg assembly L3 (Fig. 3).- A casing 5 contains a plunger 4 having two surfaces 6, 7 which slidingly engage the bore of the casing. A longitudinal flat area 8 on the plunger is engageable by hydraulic presser members 10 which, by means of a hand pump 14 and a selector valve 57, may exert a lateral force on the plunger for blocking the latter in the casing 5. An actuator cylinder 17 in the upper part of the casing has a piston 16 attached to the plunger 4. A valve 56, in its neutral position, blocks off chambers 20, 21 in the cylinder 17 and locks the piston 16. Operation of the pump 14 and the valve 56 from its neutral position to one side causes the casing 5 to move upwards. With the valve displaced to the reverse position, the casing 5 moves downwards under gravity. Fine vertical adjustment of the casing is provided for by a rod 24 which extends into the fluid chamber 21 of the cylinder 17. A hand wheel 25 is secured to a threaded rod 27 engaging a sleeve 29 to which the rod 24 is attached. Rotation of the hand wheel causes more or less penetration of the rod into the chamber 21 for sensitive adjustment of pressure in the chamber. A revolution counter device 32 is operated by the hand wheel. To permit the load-transmitting member 36 to shift over a supporting surface 40 of a base member 37 and to thus avoid stress due to thermal expansion, the loading on the surface 40 by the member 36 may be reduced by a piston 44 which engages a link 43 having a ball-shaped upper end seated in a socket portion of the member 36. The piston 44 is movable by a foot pump 50, 61. Leg assemblies L1, L2.-These differ from assembly L3 only in the construction and support of the members 36. In L2, Fig. 2, the member 36 has machined sides and slides within a groove formed in the top of a base 59. The member 36 of L1 is fixed.
Patent GB-1007863-A (GB)
Title: Improvements in or relating to condensers and other heat exchangers having anti-corrosion coatings having a plastics base
IPC: F28F19/04
Filed: 1962-05-23
Abstract: Anti-corrosion coating compositions comprise a thermosetting synthetic resin in which has been incorporated 25% to 40% by weight of finely divided mica.  Specified synthetic resins are phenol-formaldehyde and epoxy resins. Silicone resins may also be present in the compositions as may pigments, e.g. titanium dioxide or iron oxide.ALSO:A condenser or other heat exchanger having a surface intended to be exposed to water vapour or a vapour mixture containing water vapour, has said surface protected by a coating consisting essentially of a thermosetting synthetic resin in which has been incorporated 25-40% by weight of finely divided mica.  The resin may be a phenolic resin and/or an epoxy resin.  A silicone resin and pigments may also be included in the compositions.
Patent GB-744792-A (GB)
Title: Grain polishing apparatus
IPC: B02B3/00
Filed: 1953-07-16
Abstract: 744,792. Polishing grain. SATAKE, T. July 16, 1953, No. 19796/53. Class 58. [Also in Group XXX] Apparatus for polishing grain, particularly unhulled rice, comprises a rotor, made of coagulated corundum or carborundum, having two inverted conical parts 4 and 5 separated by a grain passage 24 from a perforated porous branremoving wall with correspondingly inverted conical parts 1 and 2, made of wire netting or thin porous metal plates. A feed hopper 44 is provided with a slidable shutter 45 above a pivoted valve 46 operated by a screw 48. A pivoted valve 26, controlled by an adjustable eccentric weight 29 on a threaded lever 28, is arranged in a discharge trough 25. The rotor is fixed to a shaft 8 centrally mounted in a housing 39 and driven, through worm gearing 16, 31, from a shaft 32 fitted at opposite ends with pulleys 33, 34 (Fig. 2, not shown) respectively connected by V-shaped belts with a motor and a thrashing-machine.
Patent GB-990677-A (GB)
Title: Transportable tower cranes
Inventor: HOBBS ALBERT WILLIAM
IPC: B66C23/80
Filed: 1961-06-01
Abstract: 990,677. Mobile tower cranes. STAR CRANES Ltd. June 1, 1962 [June 1, 1961], No. 19889/61. Heading B8B. A mobile tower-crane 7, Fig. 1, is mounted on a base 2 which is provided with road wheels 5 and crawler tracks 4 mounted at right angles to each other. The crane is levelled and stabilized by hydraulic jacks 2a which movably support the crawler tracks. The tower is raised by a screw 12, Fig. 4, driven by a motor 13. A member 14, Fig. 6, attached to the tower engages the screw and is mounted on a beam 18 to the ends of which are attached struts 15, Fig. 4, by means of axles 17. Wheels 16 abut the tower and support its weight. As the member 14 moves along the tower it is guided by a channel 14c. Specification 990,678 is referred to.
Patent GB-1005784-A (GB)
Title: Improvements in the production of aryl esters of phosphorus oxy-acids
IPC: C07F9/12
Filed: 1962-03-07
Abstract: An aryl ester of a phosphorus oxy-acid is obtained by reacting a phenol and a chloride of the phosphorus oxy-acid the heat needed for maintaining the reaction temperature being provided by separately preheating the phenol supplied to the reaction zone to a temperature high enough to vaporize all or a significant part of the phenol.  The vaporized phenol condenses in the reaction zone liberating latent heat and thus maintaining the temperature of the reactants. The phenol may be heated by passage through a steam or direct fired heater operated so as to vaporize all or a significant part of the phenol.  When cresylic acid, comprising a mixture of xylenols, cresols, C9 and C10 phenols and phenol, is used as the phenol a suitable heating temperature is from 208 DEG  to 227 DEG  C. at atmospheric pressure and the partially vaporized cresylic acid may then be fed into the reaction zone simultaneously with liquid phosphorus oxychloride and the reaction zone maintained at 190-240 DEG  C. to form the phosphate ester.  The extent of vaporization of the cresylic acid is suitably about 30% or 50% and may be automatically controlled, e.g. by providing a thermostat in the reaction zone to respond to lowering of the temperature in the zone and to activate means for adding more heat to the vaporization apparatus.
Patent GB-1088475-A (GB)
Title: Improvements in hand tools for cutting cable sheaths
Inventor: BLACKWELL JOHN
IPC: H02G1/12
Filed: 1965-05-12
Abstract: 1,088,475. Stripping cables. BRITISH INSULATED CALLENDER'S CABLES Ltd. July 4, 1966 [May 12, 1965], No. 20017/65. Addition to 828,171. Heading H2C. The device shown is for stripping helically the outer sheathing of mineral insulated cables. The cable is housed in a member having a suitably sized circular hole and clamped at 12. The blade 8 is mounted in a recess 5, the plane of which is at an angle to the plane perpendicular to the cable axis. The blade is adjustable radially of the cable by releasing a clamping screw 9. Both of the edges of the blade are provided with cutting surfaces so that the blade can be turned round.
Patent GB-986873-A (GB)
Title: 1,4-benzodiazepine derivatives and a process for the manufacture thereof
Filed: 1963-05-21
Abstract: The invention comprises compounds of the general formula <FORM:0986873/C2/1> wherein R stands for a lower alkyl thio group and wherein the broken line denotes that the 1-(lower alkyl) group is optional, and acid addition salts thereof, and the preparation thereof either by reaction an amino-benzophenone of the formula <FORM:0986873/C2/2> wherein R has the significance given earlier, with glycine or an ester thereof, preferably by heating in a solvent such as pyridine or N,N-dimethylformamide in the presence of an ion of a strong acid (it is convenient to use the starting materials or solvents in the form of their acid addition salts with a strong organic or inorganic acid, e.g. the hydrochloride), or by reacting the said amino - benzophenone with halo - acetyl halide of the formula <FORM:0986873/C2/3> and treating the resultant haloacetamido-benzophenone with ammonia, optionally heating to speed cyclization, and in either case converting the resulting 1,4-benzodiazepine into an acid addition salt if desired.  The term "lower" used above means groups containing from 1-7 carbon atoms and the term halogen includes chlorine, bromine, iodine and fluorine. The amino-benzophenones of the second general formula above may be prepared by reacting an appropriately substituted 2-amino-(21,31- or 41-halo)-benzophenone with a sodium lower alkyl mercaptan.  In an example o-fluoro-benzoyl chloride and p-chloro-aniline are heated in the presence of zinc chloride to give 2-amino-5-chloro-21-fluoro-benzophenone which is then reacted with sodium methylmercaptan in 2-ethoxy-ethanol under reflux to yield 2-amino-5-chloro-21-methylthio-benzophenone.  Pharmaceutical preparations having sedative, tranquillizing, muscle relaxing and anticonvulsant effects for enteral or parenteral administration comprising a compound of the first general formula above and one or more inert solid or liquid carriers or diluents.
Patent GB-137561-A (GB)
Title: Improvements in or relating to self-recording raingauges
IPC: G01W1/14
Filed: 1919-01-13
Abstract: 137,561. Halliwell, F. L. Jan. 13, 1919. Rain gauges. - The recording-apparatus of the rain gauge described in Specification 27174/08, [Class 106, Registering &c.], is improved so as to make the ordinates of the curve traced rectilinear instead of curved, withcut alteration of the larger record drum there employed or of the size of the casing containing the apparatus. The recording- point is connected to the gauge - operated lever B by a pivot C parallel to the pivot of the lever, and is offset sufficiently to bring the tracing-point A upon the vertical on the drum farthest from the lever pivot.
Patent GB-238546-A (GB)
Title: Improvements in surgical knife
IPC: A61B17/32
Filed: 1925-08-10
Abstract: 238,546. Castracane, L. Aug. 13, 1924, [Convention date]. Thin - blade handles with clamping-devices.- A surgical knife has a handle 1 with bifurcated end 2 merging into a U- shaped back 3 with extension 7 terminating in a turned-over portion 6. The blade 4 is detachably secured by the portion 6 entering a hole in the blade and a pin 5 carried by the end 2 engaging a V-shaped notch 9 in the blade.
Patent GB-898806-A (GB)
Title: Multiplication system
IPC: G06F7/52
Filed: 1960-06-08
Abstract: 898,806. Electric multiplying apparatus. BENDIX CORPORATION. June 8, 1960 [June 15, 1959], No. 20148/60. Class 106 (1). Multiplication of two binary numbers is effected by adding (or subtracting) the multiplicand, appropriately shifted, into (or from) the partial product. The known method of examin ing multiplier digits in turn and adding in the multiplicand and shifting when the digit is 1, and simply shifting when the digit is 0, is used (it is referred to as " zero mode ") in combination with the converse method of shifting when the digit is 1 and subtracting when it is 0 (" one mode "), the multiplication switching between these modes to reduce the number of arithmetic operations needed. A change of mode requires a corrective addition or subtraction according as it is one-to-zero or zero-to-one respectively. Fig. 2 shows schematically a parallelmode embodiment having a pair of registers for both partial product and multiplier, their contents being shifted alternately up through one of the pairs of gates G1, G11; G2, G12; or G6, G7 (where addition or subtraction is called for) and down through gates G4 (or G5) and G14, by clock pulses C2 and C1. The selection of the pair of gates for upward transfer is effected by a decoder D2 which examines the last (least significant) three digits of the shifted multiplier. If the last two of these would call for arithmetic operations it calls for a change of mode (registered at 34), if not it calls for an arithmetic operation using gate G6 and G7 to add or subtract the multiplicand where the last digit requires it, and a shift to the next arithmeticdemanding digit (or of three places where none appears in the triad); the gates G1-G3, G11- G13 (selected by D2) providing 1-3 denomination shifts respectively. The multiplication always commences in the zero mode, and since it deals only with positive multipliers will finish in the zero mode. When a change to the one mode is called for the contents of the partial product register is complemented on its downward shift by selection of a complementing path (gate G5) and hence adding in of the multiplicand from R3 in mode 1 is an effective subtraction. The new partial product is returned to the upper register, which finally contains the product for read-out via G4 and 46. A counter 32 counts the shifts against the number of multiplier digits to gate the output and prevent shift of the partial product more than the correct number of places.
Patent GB-784307-A (GB)
Title: Improvements in side delivery rakes
IPC: A01D78/00
Filed: 1954-04-29
Abstract: The subject-matter of this Specification is included in Specification 784,303 but the claims differ.  Specification 784,306 also is referred to.
Patent GB-596954-A (GB)
Title: Improvements in and relating to weighing machines or scales
IPC: G01G21/00
Filed: 1945-08-07
Abstract: 596,954. Weighing-apparatus. VANDOME & HART, Ltd., and TITFORD, R. J. Aug. 7, 1945, No. 20212. [Class 143] In a weighing-machine of the kind wherein the balance beam carries a load-carrying member having an agate or bearing block with a V- recess in one face to engage a knife-edge, the agate or bearing block is secured between and is contained wholly within the depth of opposite side limbs of the load-carrying member, the V-recess on one face being exposed to the lower side of the member, and the opposite face being exposed to the upper side. In scales having a pair of transversely spaced pillars recessed to receive bearing blocks having V-grooves in their upper surfaces to engage knife-edges carried at the centre of a balance beam formed by a pair of parallel arms connected by transverse bars and provided at each end with a knife-edge plate to support a bearing block of a load-supporting platform, the knife-edges at each end are bridged by a load-carrying member a bifurcated at each end to form forks b in which bearing blocks c are secured, as by pins d, so as to be wholly within the depth of the side limbs e with the V-recesses f downwards. A cup g receives the load receptacle or platform.
Patent GB-184054-A (GB)
Title: Collapsible side car or bassinette
IPC: B62K27/02
Filed: 1921-07-29
Abstract: 184,054. Brown, G. J. July 29, 1921. Collapsable vehicles.-In a collapsable side-car or bassinette having a body with ends b hinged at g to collapse inwards and a lifting bottom h hinged at i and a wheel chassis the longitudinal members c of which are spaced apart by toggleacting stretchers n, the longitudinal members c are interconnected by telescopic tubular transverse members m.
Patent GB-572226-A (GB)
Title: Improvements in or relating to hair pieces, toupees or wigs
IPC: A41G3/00
Filed: 1944-10-21
Abstract: 572,226. Wigs and the like. GORDON, V. J. Oct. 21, 1944, No. 20405. [Class 131] In order that the edges of wigs, toupees, or hair pieces may lie close to the head, separate edge forming elements or hair lines are employed comprising a flexible metallic or other strip A having a series of fine wires or threads B projecting therefrom. In a modification two such strips A may be superposed and secured preferably by soldering and the fine wires &c B may be of different lengths or staggered. Fig. 3 shows a further modification in which a netting, cotton gauze, hair lace or fine wire gauze C may be interposed between the two strips A which netting &c. serves for the attachment or looping of the hair strands of the wig &c.
Patent GB-365099-A (GB)
Title: Method of using electron tubes, directly on alternating voltages, especially for the purpose of controlling relays by means of photo-electric relays
IPC: H01J40/14
Filed: 1930-07-05
Abstract: 365,099. Valve amplifying circuits. GEFFCKEN, H., 81, Biedermannstrasse, and RICHTER, H., 3, Wiederitzscherstrasse, both in Leipsic, Germany. July 5, 1930, No. 20416. Convention date, July 5, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] In controlling relays by means of photoelectric cells employing thermionic valves, the valve 2 is operated directly from an alternating current source, and a condenser 5 is connected between the grid and cathode. The cathode 7 of the cell 6 is connected to the anode circuit of the valve through a resistance 10, the anode 9 of the cell being connected to the valve cathode through a condenser 5. The grid potential of the valve may be fixed by a resistance 11 or a grid leak. By virtue of their opposed connection, alternate half cycles of current pass through the cell and the valve, whereby the negative charge induced on the grid by the cell 6 during one half cycle is increased during the successive half cycle when the anode 9 is positive.
Patent GB-465238-A (GB)
Title: Improvements in or relating to telegraph signalling systems
IPC: H04L25/04
Filed: 1936-07-24
Abstract: 465,238. Code telegraphy. STANDARD TELEPHONES & CABLES, Ltd. July 24, 1936, No. 20527. Convention date, Aug. 30, 1935. [Class 40 (iii)] A repeater comprises contacts (of relay 101) for impressing signal conditions of either polarity on the outgoing side of the line and a receiving relay 102 for signals in the opposite direction and having two windings one of which is connected to the return side of the line whereas the other is a balancing winding connected to said contacts. The repeater is adjusted for different lines by a resistance 103 and the balancing circuit includes an artificial line 107 which may be a resistance. On transmission of a marking condition relay 102 is held in the marking condition by current in its line winding which is approximately twice the current (spacing) in the balancing winding. On transmission of a spacing condition, the line is substantially without current and the balancing winding of 102 is in a direction holding the relay in marking position. Current surges due to line capacity to ground do not affect 102. To prevent 102 from being changed over by spacing current in the balancing winding on transmission of a marking impulse due to the delay of the impulse by the line, a capacity network 106 may be connected as shown or an inductance 105 may be used to delay the arrival of spacing current in the balancing winding.
Patent GB-400734-A (GB)
Title: Improvements in chairs, stools, tables and the like
IPC: A47C7/00
Filed: 1932-07-21
Abstract: 400,734. Furniture frames. SAXELBY, F. A., 26, Jordan Well, Coventry. July 21, 1932, No. 20582. [Class 52 (ii).] In a modification of the device described in Specification 326,442, [Class 52 (ii), Furniture for sitting &c. upon], a support or underframe for chairs, stools, tables, &c. consists of three or more pairs of strip-like components 1, 2, 3 secured round a vertical axis by means of one or more rings 6 or their equivalents. Each pair of components, such as 1, consists of a strip bent so that the parts converge to toe 5, the central parts are parallel and fixed diametrically opposite to one another on the rings 6, and extend upwards and diverge to form supports 4 for a seat &c. In a modification these upwardly-extending parts converge like the parts 5. Each component 1 may be in two or more parts, and the arrangement may be used in an inverted position.
Patent GB-1449787-A (GB)
Title: Glass optical fibre joints
IPC: G02B6/24
Filed: 1975-05-15
Abstract: 1449787 Connecting light guides STANDARD TELEPHONES & CABLES Ltd 15 May 1975 20587/75 Heading G2J A method of joining glass optical fibres 1, 2 comprises introducing two bare sections of fibre 3, 4 into opposite ends of a clearance-fit glass sleeve 7 of lower melting point than the fibres; butting the ends 5, 6 of the fibres together and heating the sleeve so that it collapses on to the fibres (e.g. by means of a loop 9 of electrical resistance heating wire). A sleeve 8 of plastics may be heat-shrunk over the joint to give mechanical strength. Each fibre may be further secured in the sleeve by fillets of adhesive e.g. cyanoacrylate. Materials. The fibres may have silica cores 3, 4 and plastics cladding 1, 2 e.g. polypropylene. The sleeve 7 may be of conventional boro-silicate or soda-lime glass, a high silica glass or a lead glass.