baber/WOPTO huggingface dataset:
Patent GB-794706-A (GB)
Title: Radio frequency microwattmeter
IPC: G01R21/00
Filed: 1956-10-19
Abstract: 794,706. Microwattmeters. STANDARD TELEPHONES & CABLES, Ltd. Oct. 19, 1956 [Oct. 21, 1955], No. 31875/56. Class 37. A radio frequency microwattmeter consists of three equal resistances 1, 2 and 3, each of value R and a suitable thermistor 4 which together form a bridge with a balance indicator 8. The bridge is supplied with current from a source 5 through a series resistor R<SP>1</SP>. R<SP>1</SP> is varied until the bridge is balanced. The mean value of R<SP>1</SP> needed to balance the bridge should be very nearly equal to R. This can be achieved by choosing the thermistor and value of the source correctly. When the bridge is balanced a radio frequency input is applied across the thermistor at 9 and 10. A shunt circuit across the bridge consisting of variable resistance r and ammeter 6 is closed by means of switch 7. The resistor r is then adjusted until the bridge is once more balanced. The current through 6 is then an indication of the power to be measured. The Specification claims 5 per cent accuracy over a wide range of ambient temperature using only a low voltage source such as can easily be supplied by batteries.
Patent GB-1178223-A (GB)
Title: Cold separation of helium and neon from atmospheric nitrogen.
Inventor: KOBELT GUENTHER
IPC: F25J3/04
Filed: 1968-07-04
Abstract: 1,178,223. Cold separation of gas mixtures. LEUNA-WERKE " WALTER ULBRICHT " VEB. 4 July, 1968, No. 32034/68. Heading F4P. Helium and neon are recovered from a gaseous mixture thereof with nitrogen containing argon, crypton and possibly oxygen, e.g. the expansion gases of an air fractionating plant after removal of hydrogen by combustion and subsequent drying and removal of gaseous products of combustion, by passing the gaseous mixture under 4 to 35 atmospheres pressure into the condensation space of a gas refrigerator operating by the Stirling process, thereby condensing all but the helium and neon which is thus concentrated and is withdrawn as gaseous product; the condensate being withdrawn and passed to an argon, crypton and xenon separating apparatus.
Patent GB-1144336-A (GB)
Title: Improvements in or relating to electron beam generating systems
IPC: H01J3/02
Filed: 1966-07-18
Abstract: 1,144,336. Electron guns. SIEMENS A.G. 18 July. 1966 [19 July, 1965], No. 32102/66. Heading H1D. An electron gun structure, particularly for a travelling-wave tube, comprising an indirectlyheated dispenser cathode 2, a radiation shield 3 and a Wehnelt electrode 5 mounted within a cylindrical carrier 1 for accelerator electrode 1A has the Wehnelt electrode mounted on a support ring 6 by a plurality of symmetrically spaced metal bars 7 equal in length to that of the radiation shield. The Wehnelt assembly is mounted on a base-ring 8 by a plurality of insulating rods 11 and the cathode assembly is supported by a plurality of insulating rods 9. The cathode fixing flange 10 is provided with a skirt 12 to screen the insulating rods against the deposition of conductive material. The whole arrangement is to conduct heat loss to the accelerator electrode carrier 1 and to keep the Wehnelt electrode cool. The metal bars 7 may be of flattened shape and radially orientated or of circular cross-section. The insulating rods 9, 11 may consist of aluminium oxide, magnesium oxide or beryllium oxide. The cathode radiation shield 3 has an extension 4 serving as a heat brake. Heat is removed from the foot of the accelerator electrode via an air-cooled radiator.
Patent GB-411034-A (GB)
Title: Improvements in or relating to bicycle stands
IPC: B62H1/00
Filed: 1933-11-17
Abstract: 411,034. Cycle supports. FRIEDENHAIN, D., 57, Old Street, City Road, London. Nov. 17, 1933, No. 32147. [Class 136 (i).] A stand attached to a bicycle comprises a stirrup member 3 having pivoted at 7, 8 on its free ends a pair of folding legs 1, 2, the free ends 14,15 of the stirrup being arranged at an angle to each other in such a way that when the legs are lowered, they automatically spread apart transversely until they reach an inclined operative position somewhat in advance of the stirrup member, when they bear against stops, as by their extended upper ends 9, 10 engaging a transverse bar 16 on the stirrup. The legs 1, 2 are connected together by an expansible and contractible link consisting of two members 12, 13, of which an enlargement 11 on the member 13 passes through a slot in the angled end of the member 12. A spring 17 automatically draws up the legs into their inoperative position when they are released from their operative position. The stand may be attached tothebottomrear fork near the crank bracket by means of a bolt 6 and plates 4.
Patent GB-544244-A (GB)
Title: Improvements in or relating to devices or systems for constituting a running track or surface for vehicles
IPC: E01C9/10
Filed: 1939-12-13
Abstract: 544,244. Temporary road tracks. CLEVELAND, F. J. (Soc. Auxiliaire de Construction). Dec. 13, 1939, No. 32154. [Class 107] A running track for aircraft or road vehicles on soft ground comprises a plurality of rigid polygonal elements e provided with laterally projecting sockets or nesting members enabling the elements to engage one another with play and conform to uneven ground. In the form shown, triangular grating elements, each formed of a frame e<SP>1</SP> and cross bars e<SP>2</SP>, e<SP>3</SP>, are nested together to form the track which is placed on the ground. Nesting is facilitated by U-members 1 attached to each side of the frames to engage over the adjacent frame members and allow play without the elements becoming disconnected. The corners of each frame are rounded to permit of fastening at a converging point x by washers and screws which engage wooden spikes driven into the ground.
Patent GB-193180-A (GB)
Title: Improvements in or relating to wire mattresses
IPC: A47C23/30
Filed: 1921-12-01
Abstract: 193,180. Smith, S. D. Dec. 1. 1921. Mattresses.-In a bedstead comprising a frame 3, a wire mattress 1 and a plurality of spring pressed inclined struts 5 acting on the mattress to give it an initial upward defection, the springs 10 are arranged in pairs inclined to one another, each pair acting on one or a pair of struts, the struts acting on the mattress at a plurality of points disposed across its width and intermediate its side edges. The struts 5 may have both their ends 6 bent upwardly.
Patent GB-823002-A (GB)
Title: Production of new nitrogenous derivatives of propargyl alcohol
IPC: C23F11/14
Filed: 1957-10-18
Abstract: The invention comprises nitrogenous derivatives of propargyl alcohol of the general formul  <FORM:0823002/IV (a)/1> <FORM:0823002/IV (a)/2> <FORM:0823002/IV (a)/3> wherein the radical <FORM:0823002/IV (a)/4> is that of C-methyl-, C-ethyl-, C-propyl-, C-butyl- or spirocyclohexane-ethyleneimine, and the preparation of these and similar compounds, characterized by the grouping <FORM:0823002/IV (a)/5> by reacting ethyleneimine or a C-alkylated derivative thereof or a spirocycloalkane-ethyleneimine with a compound having the characteristic grouping <FORM:0823002/IV (a)/6> (e.g. 2-ethinylpropylene oxide, 1-ethinylcyclohexene-(1) oxide or 1-ethinylcyclo-octene-(1) oxide).  The reaction may be carried out in a solvent or diluent substantially inert under the reaction conditions, or excess of one of the reactants, preferably the ethyleneimine or derivative, may serve as solvent or diluent.  The products, or the compounds derived therefrom by opening the ring by adding on HCl, are useful in pharmacy (e.g. as cytostatic agents), as active cross-linking agents in textile printing pastes and as corrosion inhibitors.  Alkinyl-alkylene and -cycloalkylene oxides containing the grouping <FORM:0823002/IV (a)/7> are obtained by the action of peracids on conjugated alkinenes.
Patent GB-736943-A (GB)
Title: A process for the production of substituted alkanes
Filed: 1953-11-24
Abstract: Substituted alkanes having two hydroxyaryl groups attached to a single carbon atom of the alkane radical are prepared by subjecting an aromatic hydroperoxide represented by the general formula <FORM:0736943/IV (b)/1> in which Ar represents an aryl or alkaryl group, R1 represents a hydrogen atom or an alkyl group and R2 represents an alkyl group, to the catalytic influence of a strong acid and a mercaptan.  A monohydric phenol may be present, in an amount by weight at least equal to that of the hydroperoxide. Generally the reaction proceeds so that the hydroxyl groups occupy the para positions if this is possible.  The quantity of mercaptan used is between 0.5 and 5.0 per cent of the hydroperoxide and methyl mercaptan or ethyl mercaptan is preferred.  The acids used have a dissociation constant greater than 10-3, e.g. sulphuric or hydrochloric acid.  The most advantageous weight ratio of acid to hydroperoxide lies between 2 : 15 and 2 : 1. The hydroperoxide is added to the acidic reaction medium, preferably at a temperature between 0 DEG  and 10 DEG  C. and reaction proceeds preferably at temperatures between 0 DEG  and 60 DEG  C.  The presence of inert organic solvents, e.g. hydrocarbons, lower alcohols or ethers is generally desirable.  The process is especially important for the preparation of 2 : 2-di-(4-hydroxyphenyl)propane using cumene hydroperoxide as the starting material.  Other hydroperoxides specified include a  - phenylethyl, a  - ethyl-a  - methylbenzyl, a ,a  - dimethyl - p - methylbenzyl, and a ,a  - dimethyl naphthylmethyl hydroperoxides.  In examples: (1) a mixture of phenol and sulphuric acid is reacted with cumene hydroperoxide in the presence of ethyl mercaptan; (2) the processes of reacting sulphuric acid and cumene hydroperoxide with and without ethyl mercaptan are compared; (3) normal heptane is saturated with anhydrous hydrogen chloride and reacted with a mixture of cumene hydroperoxide and ethyl mercaptan.  Specification 721,336 is referred to.
Patent GB-730678-A (GB)
Title: Justifying typewriters
IPC: B41J19/64
Filed: 1952-12-23
Abstract: 730,678. Typewriters. LEGLISE, P. Dec. 23, 1952 [Dec. 26, 1951], No. 32554/52. Class 100 (4). Letter-spacing arrangements.-In typewriters comprising a platen movable relatively to an escapement rack to effect end-of-line justification, the drives both of the platen and the rack are effected by a common spring. The invention is described as applied to the end-of-line justifying typewriters of Specifications 715,115 and 717,947, wherein the platen is integral with a carriage and movable as an assembly on the rack, or alternatively, the platen is movable relatively to the carriage which is integral with the rack. In the embodiment shown in Fig. 12,. a justifying .lever 10 is pivotally mounted at 0 on a slide 1 rigid with the rack 20. When the rack has travelled to a point where the lever 10 is pivoted by a stop 14 adjustably secured to the typewriter frame,' displacement of the carriage and platen assembly relative to the rack occurs by means of a pin connection 16 carried on a slider 15 adjustable in a groove 12 according to the justification to be made. A draw band 90 attached to the common drive spring urges the rack 20 to the left and, by anchoring the band to a sector 11 on the lever 10, the latter is also urged towards the stop 14. This arrangement avoids the use of a separate spring for the lever 10, prevents the lever 10 oscillating and obviates the use of a strong lever spring as that relative movement between the platen and the rack is blocked. A pulley 96 changes the direction and plane of the draw band 90 and may comprise (i) two grooves 98, 98a and a central hump 99, Fig. 15; (ii) two radial pins around which the band is looped, or (iii) a plain drum accommodating several turns of the band. When the machine is not being used for justification, the slide 1 and an extension of the carriage may be locked together by a bolt normally moving in a slot 8. The common drive spring may also be applied to the platen and rack assemblies in justifying typewriters of the kind employing a ramp 114, Fig. 18, and a touching arm 110 slidably mounted, as shown, on part 101 fixed to the rack 120. A pin A on the arm 110 slides in a groove 112 on a setting bar 150 lockable in notches in a plate 140 attached to the platen and carriage assembly 170, 171. Movement of the arm 110 thus moves the bar 150, its plate 140, and the carriage assembly relatively to the right or left of the rack 120 according to the setting of the bar 150. The rack 120 is urged to the left by a draw-band 190 which is guided over a pulley 196 and attached at 195 to the touching arm 110. The touching arm 110 may alternatively be mounted on the platen assembly with corresponding transposition of the other parts.
Patent GB-1473023-A (GB)
Title: Handling of wrapping materials
IPC: B26D5/30
Filed: 1975-08-05
Abstract: 1473023 Longitudinal web registering SIG SCHWEIZERISCHE-INDUSTRIE-GESELLSCHAFT 5 Aug 1975 [6 Aug 1974] 32610/75 Heading B8R A web 2 fed incrementally to a transverse cutter 21, 22, and having registering marks 20 which are scanned by a photo-electric cell 19, is registered longitudinally by feeding it a predetermined distance which is different from the distance between the marks 20 and imparting to the web by a free-wheeling device 6 a correction stroke which is terminated by the cell 19 scanning the mark 20 in that a signal generated by the cell 19 causes a clamp 16 to stop the web feed whilst the free-wheeling device continues to run freely up to its reversed point. The free-wheeling device 6 comprises a pivoted element 7 forming a gripper with a further pivotally mounted member 11. In operation, as shown, the rollers 3, 4 of which roller 3 is raisable to interrupt the web feed, feed the web by a distance which is greater than the distance between the marks 20. The cell 19 is then switched on and the element 7 pivoted by a drive in the direction of arrow 10 to apply a reverse correction stroke to the web. The stroke is terminated by the cell 19 sensing the mark 20, sending a signal to an amplifier 18 which actuates an electromagnet 17 which in turn actuates the clamp 16. The element 7 and member 11 engage the web frictionally in such a manner that the element 7 may move without web feed and tearing the web up to reversal point and back to its starting point. When the element 7 is positioned in front of the rollers 3, 4, the latter may feed the web by a length which is shorter than the distance between the marks 20 and the element then imparts a forward correction stroke which is terminated when the mark 20 arrives at the cell 19.
Patent GB-1397644-A (GB)
Title: Method for treating refuse and plant for carrying out said method
IPC: C05F17/02
Filed: 1972-07-12
Abstract: 1397644 Biological decomposition of refuse/ mud mixture J R KAELIN 12 July 1972 [19 July 1971] 32638/72 Heading C1B [Also in Division B1] A mixture of rottable refuse and mud is loaded into a treatment chamber from above, passed continuously and in vertical direction therethrough and discharged at the bottom and whilst passing through, at least one stream of gas or gas mixture supporting biological decomposition (e.g. air, oxygen enriched air or pure oxygen) is passed through the material by supplying the gas or gas mixture under pressure through one side wall of the treatment chamber and sucking it through an opposite side wall. Gas may be blown in by a pressure blower and sucked out by a fan. Means are described for varying the flow of gas in different regions of the chamber.
Patent GB-396260-A (GB)
Title: Improvements in automobile wind screens
IPC: B60J1/04
Filed: 1932-11-18
Abstract: 396,260. Windscreens for vehicles; draught-excluders ; windscreen-wipers. SOC. ANON. DES ANCIENS ETABLISSEMENTS PANHARD & LEVASSOR, 19, Avenue d'lvry, Paris. Nov. 18, 1932, No. 32675. Convention date, Nov. 20, 1931. [Class 103 (ii).] An automobile windscreen 1 having an upwardlyarched upper edge is fixed to C-shaped links 8 pivoted at 9 to brackets 10 secured to the car body, a rear peripheral flange 5 on the windscreen frame having airtight contact with a rubber packing 6 in a groove 7 on the car body when the screen is closed. The windscreen is operated about the pivots 9 and held in any position by mechanism 12. The motor of the windscreen-wiper is clear of the screen to permit maximum visibility, the wiper arm 14, Fig. 3, being driven through a pin 15, while, to permit it to follow windscreen displacements, the arm 14 is pivoted at 16 and pressed towards the screen by a spring 17.
Patent GB-481995-A (GB)
Title: Improvements in or relating to hand steering wheels
IPC: B62D1/08
Filed: 1936-11-30
Abstract: 481,995. Hand wheels. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd., WOOLLARD, F. G., and PEARCE, G. Nov. 30, 1936, No. 32692. [Class 80 (iv)] Resilient spokes bare mounted in the rim a with their ends in contact with rubber cushions h placed at the ends of holes in a rubber block g. The latter, and a metal block e, are contained in sleeves d welded to the rim a. In a modified form, the block e and cushions h are dispensed with, the spokes being housed in sockets in the blocks g and the sleeves being welded to the inner wall only of the rim. The central wire b<1> may be longer than the others and have a less resilient contact with the rim.
Patent GB-654172-A (GB)
Title: Improvements in printing machines
IPC: B41F21/08
Filed: 1947-12-11
Abstract: 654,172. Printing-machines. HOE & CRABTREE, Ltd., R. Dec. 11, 1947, No. 32732. Convention date, Dec. 14, 1946. [Class 100 (ii)] In a multiunit rotary printing machine a flexible sheet conveyer which moves in curved paths conforming to the impression cylinders and in oppositely curved paths therebetween has a sheet carrier so connected thereto that it accelerates as it moves away from and decelerates as it approaches an impression cylinder; the slack of a sheet emerging from a unit may thus be regulated. As applied to a machine similar to that described in Specification 478,362, the gripper bar 14 is fixed at each end to a carriage 15 connected by a link 16 to the conveyer chain 9 and having a track determined by guides 30, 31, 32 spaced from the guides 12, 13 of the chain 9 in such a way that the inclination of the link 16 increases in that part of the path immediately following each couple 1, 4 so that the carriage overruns the uniformly moving conveyer sufficiently to keep the sheet taut as at A.
Patent GB-185360-A (GB)
Title: Improvements in wheel hubs for perambulators and other vehicles
IPC: B60B27/02
Filed: 1921-12-07
Abstract: 185,360. Cartwright, F. A. Dec. 7, 1921. Hubs.-A hub for perambulator and other vehicle wheels comprises a barrel 4 carrying ball races at each end and rotating about a sleeve 3 carrying complementary races. The axle 1 is formed with a split 7, and a tapered screw 9 forces a lip 12 to engage an inner flange 11 on the sleeve 3 thereby forcing the latter against a collar 2. The sleeve has a D or other irregularly-shaped hole engaging the axle 1 to prevent relative rotation. In a modification, the axle has a shouldered end which is slit and formed with two lips engaging over the ends of a sleeve formed without the flange 11.
Patent GB-781780-A (GB)
Title: Cation-exchange resins and their preparation
Inventor: MILLAR JOHN ROBERT
IPC: C08F8/12
Filed: 1954-11-12
Abstract: The invention comprises cation-exchange resins which contain a -hydroxyphosphonic or a -hydroxy-phosphinic acid groups as the ionexchange groups.  The resins may be represented respectively by the formul  <FORM:0781780/IV (a)/1> and <FORM:0781780/IV (a)/2> where R2 may be H and R3 is alkyl or aryl.  They are prepared by reacting a trivalent phosphorus halide with an insoluble cross-linked polymer containing aldehydic or ketonic carbonyl groups, followed by addition of an anhydrous carboxylic acid and hydrolysis.  Suitable phosphorus halides are the trichloride and tribromide, methoxy dichlorophosphine and dimethoxychlorophosphine, all of which yield the phosphonic acid derivatives (a half-ester in the case of methoxydichlorophosphine); and alkyl and aryl dihalophosphines, which yield the phosphinic acid derivatives.  The polymer may be of a condensation or addition type, e.g. furfuraldehyde-formaldehyde, and furfurylidene acetone-formaldehyde or -furfuraldehyde condensation products; polymers of methyl vinyl ketone or isopropyl methyl ketone, cross-linked with a compound containing 2 or more polymerizable double bonds such as divinyl benzene and divinyl ketone; and the hydrolysed copolymer of allylidene diacetate and a cross-linking agent, being in effect a copolymer of acrolein and the cross-linking agent.  The polymer is in particle form and preferably swollen, either in an inert solvent or in the phosphorus halide, before reaction is effected, preferably at elevated temperature.  In the examples: (1) isopropenyl methyl ketone is polymerized with divinyl benzene in the presence of benzoyl peroxide and partly under ultra-violet irradiation, the polymer is granulated and suspended in ethylene dichloride, and PCl3 is added.  After 8 hours at 60 DEG  C., the mixture is cooled and reacted with glacial acetic acid; the solid product is hydrolysed in ice-water, washed and dried.  Before using this resin with a solution of nickel and ferrous sulphates, it is converted to the hydrogen form by flowing therethrough excess of 2N hydrochloric acid; (2) the polymer of (1), prepared by using azobisisobutyronitrile as catalyst, is reacted with methyl dichlorophosphine, and the process is continued as in (1) to give a resin containing a -hydroxy phosphinic groups; (3) furfurylidene acetone, prepared from furfural and acetone, is mixed with furfural and conc. HCl at 40 DEG  C. and, after standing, a black gel is formed.  This is treated as is the polymer in (1); (4) methyl vinyl ketone is crosslinked with divinyl ketone in the presence of azobis isobutyronitrile and the polymer treated as in (2).
Patent GB-1094453-A (GB)
Title: Improvements in or relating to driving anchoring means or fastening devices
Inventor: ANGER VINZENZ
IPC: B25C1/16
Filed: 1965-02-18
Abstract: 1,094,453. Explosive-actuated tools. ENFAG, ENTWICKLUNGS UND FORSCHUNGS A.G. Feb. 18, 1965, No. 32879/67. Divided out of 1,094,452. Heading B4C. An anchoring device, such as a bolt, is driven into a solid material by means of a tool in which a pellet of a deflagrating propellant composition is ignited by percussion. The pellet may be made from PETN and tetragen.
Patent GB-778309-A (GB)
Title: 4-o.o-diphenyl-phosphorylamido-pyrazolones
Inventor: GAILLIOT PAUL
IPC: C07F9/6503
Filed: 1954-11-12
Abstract: The invention comprises 1-phenyl-2:3-dimethyl - 4 - O:O - diphenyl phosphorylamidopyrazolone and its preparation by treating 1-phenyl - 2: 3 - dimethyl - 4 - amino - pyrazolone with a diphenyl halogenophosphate.  The reaction is preferably carried out in a solvent such as benzene and in the presence of a hydrogenhalide binding agent such as triethylamine.