baber/WOPTO huggingface dataset:
Patent GB-1032031-A (GB)
Title: A device for attachment to vehicles to increase the load supporting capacity thereof
Inventor: BAIRD JAMES ROSS
IPC: B62D53/08
Filed: 1962-02-08
Abstract: 1,032,031. Articulated vehicles. YORK TRAILER CO. Ltd. Feb. 4, 1963 [Feb. 8, 1962], No. 4883/62. Headings B7D and B7H. A temporary axle for use with tractors and semi-trailers comprises a pair of double or single wheels 6 mounted on an axle carried by a pair of leaf spring assemblies 3 from a framework 2 the front portion of which is tapered so that it can readily ride over the rear end of a tractor and is provided with a downwardly depending king-pin 8 carried in a cradle 10 for engagement with the fifth wheel coupling of a tractor. The trailing axle frame mounts a fifth wheel coupling 14 upon trunnions 16 which allow it to rock slightly whereby the downwardly depending king-pin of a semi-trailer can be aligned with the entrance slot. The device enables a four-wheel tractor to be converted to a sixwheel vehicle and facilitates the interchangeability of trailers. A pair of spring hanger posts 20 align the device with the tractor.
Patent GB-642722-A (GB)
Title: Improvements relating to heat and sound insulating materials
Inventor: TODD LEONARD PIERCE
IPC: E04B1/90
Filed: 1947-02-19
Abstract: 642,722. Heat and sound insulating fibre board; compound sheet materials. TURNER BROS. ASBESTOS CO., Ltd. Feb. 19, 1947, No. 4885. Drawings to Specification. [Classes 96 and 140] [Also in Group XIII] A heat and sound insulating sheet of bonded felted asbestos fibres, staple glass fibres or slag wool or a mixture of two or all of such fibres with or without the addition of mineral wool, the length of the fibres being at least “ inch, is formed with or profiled to have at one or both sides a plurality of separate and adjacent pocket-like cavities which may be up to ¥ inch in depth, and is produced by subjecting the felt, permeated with a solution of a heatresisting bonding medium which does not substantially decompose or melt up to 500‹ C., such that the felt contains approximately once to twice its own weight of liquid, to a profiling operation and to a drying and/or curing operation. The final product may contain 5-40 per cent of a bonding medium consisting of an alkali silicate or silicon ester in a suitable solvent, and may be further treated with zinc sulphate solution or an acid to reduce alkalinity and solubility of the bonding medium and further harden the sheet. A sheet may be faced with material of low conductivity or polished metal ; a number of sheets may be interleaved or faced with wood, bonded fibrous or woven sheet, plastics or metal-faced plywood. The facing sheets may be perforated to allow of sound absorption in the cavities of the felted fibre sheets.
Patent GB-1467000-A (GB)
Title: Electrical methods and apparatus for radar jamming
IPC: G01S13/76
Filed: 1974-01-25
Abstract: 1467000 A range gate stealing transponder MARCONI CO Ltd 25 Jan 1974 [31 Jan 1973] 4906/73 Heading H4L A range gate stealing transponder incorporates a switch 14 which is closed in response to a received radar pulse to couple a time fraction of that pulse into a recirculating delay line 20 of a delay at least as long as the time fraction, means for transmitting the signals passing along the delay line over a period not less than the duration of a plurality of the time fractions, and a modulator 24 which imposes a random phase modulation on the recirculating signal (e.g. by random noise or random discrete phase shifts).
Patent GB-245959-A (GB)
Title: Improvements in sanding devices for motor driven vehicles
IPC: B60B39/04
Filed: 1925-02-23
Abstract: 245,959. Johnson, C. Feb. 23, 1925. Sand, distributing on wheel tracks.-Relates to sanding-appliances for motor-vehicles of the kind in which the supply of sand from receptacles 15, Figs. 1 and 2, located in front of each driving- wheel 18, is controlled by valves operated from a lever adjacent to the driver's seat. According to the invention, the bottom 20 of each receptacle is provided with apertures 21, Fig. 5, adapted to be covered or uncovered by a rotary apertured disc 22 connected by links 26, 27, 29 to a rocker shaft 30 which is common to the pair of driving- wheels and is operated through suitable mechanism from a handle or lever within easy reach of the driver. In the, arrangement shown, the shaft. 30 is connected through an adjustable link 34 and ben-crank lever 36 to a pull-rod 38 with handle 41 mounted on the steering-column 32, while a second connection to the shaft from a lever 48 disposed alongside the emergency brakelever 50 is effected by an arm 46 and rod 47, so that a distribution of sand can be made simultaneously with the actuation of the emergency brakes. Springs 45, 47 are provided to return the operating-mechanism and the rotary disc valves to their normal positions. In the case of a motor-car, small sand receptacles in front of the wheels may be fed from a larger container with a bottom forming two slopes.
Patent GB-980714-A (GB)
Title: Improvements in or relating to jointing bands for joints in concrete structures
IPC: E04B1/684
Filed: 1963-02-07
Abstract: 980,714. Expansion joint strips. GERD. LESCHUS. Feb. 7, 1963 [March 14, 1962], No. 5041/63. Heading E1V. The anchoring portions 2 of an expansion joint strip of thermoplastic resin material are made less elastic and extensible than the central portion 1 which includes an expansion tube 3. To form the strip the central of three feed means to an extension head may supply softer resin than the side feed means or strips of metal or woven fabric may be extruded from the side feed means as an insert in the resin material. Alternatively the portions 2 may be wrapped in strips of fabric or metal.
Patent GB-973132-A (GB)
Title: Improvements in or relating to the production of nordstrandite
Inventor: HAUSCHILD ULRICH
IPC: C01F7/021
Filed: 1963-02-07
Abstract: The aluminium trihydroxide modification nordstrandite is produced in a pure or substantially pure form by ageing an aluminium hydroxide gel by suspending it in an aqueous solution of an alkylene diamine containing from two to four carbon atoms at a temperature between 0 DEG  C. and 80 DEG  C., and filtering and drying the product.  The alkylene diamine may be ethylene diamine or di-propylene diamine, and its concentration in the aqueous phase is below 35% by weight.  The aluminium hydroxide gels may be prepared by precipitation from solutions of aluminium sulphate, nitrate or chloride by adding a dilute solution of sodium carbonate, ammonium hydroxide or sodium hydroxide at a pH of from 7 to 8.5.  A very pure product is obtained by treating an aluminium alcoholate with an aqueous solution of alkylene diamine at a temperature below 80 DEG  C. If X-ray analysis of the product shows the presence of boehmite not converted into nordstrandite, it can be dissolved out using a dilute aqueous axid e.g. hydrochloric acid, formic acid or acetic acid. Examples are given.
Patent GB-452123-A (GB)
Title: Improvements relating to loose leaf binders
IPC: B42F3/00
Filed: 1935-02-16
Abstract: 452,123. Binders for loose sheets. MERCER, J. L. C., 12, Kirby Street, Hatton Garden, London. Feb. 16, 1935, No. 5098. [Classes 16 and 146 (i)] A binding case for the reception of perforated or slotted sheets of paper or other materials 3 comprises covers 1, a spine 2 and a wire helix 4 mounted between the covers. In one form, Fig. 2, the helix 4 is threaded through a strip of material 5 glued to the covers and perforated to receive the helix, the ends 7 of which are bent over to prevent turning thereof. The strip 5 may be dispensed with, however, and the helix threaded through perforations in the spine 2. In a modified construction, Fig. 3, the spine 2 is provided with a guard or guards 11 formed by folding the material of the spine inwardly, and each guard is perforated to receive a wire helix. Reinforcing strips may be secured to the strip 5 or the spine 2 to which the helix is fixed. Sets of leaves 14 bound together by wire helices mav be attached to the helices 4 by rods 16 as described in Specification 441,248. Specification 219,547, [Class 146 (i)], also is referred to.
Patent GB-558135-A (GB)
Title: Improvements in jointing compounds suitable for sealing joints between metal parts
IPC: F16J15/02
Filed: 1942-04-18
Abstract: 558,135. Jointing-compositions. PARKER, A. LA R. April 18, 1942, No. 5171. [Class 22] A non-setting, jointing composition includes a highly oxidized and polymerized blown castor oil, insoluble in petrol, and powdered zinc stearate. The compound may also include blown castor oil of less viscosity, and a neutral, light mineral oil acting as a stabilizer or anti-oxidant. The mineral oil may be substituted by a neutral alkyl ricinoleate, e.g. the methyl, ethyl, butyl, methyl-acetyl or ethylacetyl ester. After thorough mixing, the composition is heated to melt the zinc stearate, and preferably cooled quickly.
Patent GB-728662-A (GB)
Title: Selective hydrogenation of steroidal compounds using raney nickel as catalyst
IPC: C07J71/00
Filed: 1952-02-27
Abstract: Cyclopentanopolyhydrophenanthrene compounds having a double bond in the 7 : 8 position are prepared by the selective hydrogenation of the corresponding D 5 : 6, 7 : 8 compounds using a Raney nickel catalyst, preferably in an inert solvent under superatmospheric pressure. Specified steroids include natural D 5 : 7 sterols, 7-dehydro sterols and sapogenins, pregnadienes and choladienes; whilst the solvents mentioned are benzene, toluene, xylene, petroleum hydrocarbons, lower aliphatic alcohols and dioxane.  Compounds possessing free hydroxyl or carboxyl groups are preferably converted to corresponding acyloxy or ester derivatives before reduction.  In examples, (1) ergosteryl acetate is pressure hydrogenated in (a) dioxane, (b) benzene, over Raney nickel to yield D 7 : 22-3-acetoxyergostadiene; (2) methyl 3-acetoxy-D 5,7 bisnorcholadienate in benzene p  likewise yields methyl 3-acetoxy-D 7-bisnorallocholenate, which is saponified to methyl 3-hydroxy-D 7-bisnorallocholenate and benzoylated; (3) 7-dehydrodiosgenin acetate in dioxane yields 7-dehydrotigogenin acetate, which is hydrolysed to 7-dehydrotigogenin; (4) D 5 : 7-3-acetoxypregnadien-20-one on treatment as in (1) yields 3-acetoxy - D 7 - allopregnen - 20 - one.  The required intermediates are prepared as follows:-methyl 3 - acetoxy - D 5 : 7 - bisnorcholadienate from methyl 3 - acetoxy - D 5 - bisnorcholenate by bromination with N-bromosuccinimide, and then dehydrobromination of the 7-bromo-compound with collidine, thereafter separating the D 4 : 6 and D 5 : 7 isomers by chromatography; 7-dehydrodiosgenin acetate is likewise obtained from diosgenin 3-acetate, and D 5 : 7-3-acetoxypregnadien-20-one from D 5-3-hydroxy-20-ketopregnene.
Patent GB-1302591-A (GB)
IPC: G06M1/28
Filed: 1970-02-03
Abstract: 1302591 Timed control of electric circuits AUTOMATIC TIMING & CONTROLS Inc 3 Feb 1970 [28 July 1969] 5180/70 Headings G4D D1D5 D4A2 D5A5 D5C3 and D5X1 [Also in Division H1] A timing or counting apparatus (20), Fig. 1 (not shown), has a digital display formed by indicia wheels 30 which are settable by corresponding push buttons 32. A synchronous or  impulse motor (50), Fig. 4 (not shown), drives a shaft 53 and hence a gear 59, the drive being transmitted in the timing condition to the least significant digit wheel 30 by means of a gear 60 and an idler 64 which acts as a clutch. Alternatively the drive may be from an external source. The idler 64 is carried on a movable shaft 67 which also carries pinions 65 to transmit the drive to successive indicia wheels 30 in the manner of an odometer.  The digit wheels 30 also carry respective cardioid cams 83 which are used for automatic resetting at the end of a timing cycle, the indicia being rotatably adjustable with respect to the cams by use of the push buttons 32 when the cams 83 are locked by projections 81b on arms 81. A portion 90a of an arm 90 prevents setting during a timing operation except by use of override push button (34), Figs. 1 and 16 (not shown), which disengages the clutch, gear 64 without affecting a switch (106), Fig. 7 (not shown), in a controlled electric circuit. At the end of a timing cycle, the digit wheels 30 all read zero and have their arcuate depressions 30j uppermost. This condition is detected by rollers 92 carried on a shaft 93, a switch lever 117 being then released from a hooked member 98 to operate a switch (112) controlling the motor (50) or an actuating solenoid (69), Fig. 5 (not shown). The latter also operates the external load switch (106).
Patent GB-546681-A (GB)
Title: Processes and products for the production of low carbon chromium alloys
IPC: C22C1/02
Filed: 1941-04-23
Abstract: 546,681. Alloys. UDY, M. J. April 23, 1941, No. 5220. Convention date, May 28, 1940. [Class 82 (i)] A process for making low-carbon chromium alloys comprises subjecting chromite to oxidation in the presence of lime so as to oxidize part of the chromium, which may be not more than about 50 per cent., to calcium chromate, and treating the product with a non-carbonaceous reducing agent which may be a silicon-containing material, e.g. ferrochrome silicon. An oxidizing material such as sodium nitrate, chlorate, chromate, or bichromate, or calcium chromate, may be added to the mixture. The mixture may be reacted in contact with molten metal such as iron or steel to add the chromium to the metal. The mixture may be used in powdered or briquetted form or may be bonded by the oxidizing material or by other material. Specifications 545,418 and 546,682 are referred to.
Patent GB-548489-A (GB)
Title: Improvements in and relating to starting mechanism for fluorescent lamps
IPC: H05B41/06
Filed: 1941-04-23
Abstract: 548,489. Starting discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. April 23, 1941, No. 5230. Convention date, April 25, 1940. [Class 38 (iv)] [Also in Groups XXXVII and XXXVI: A replaceable glowdischarge type switch for starting fluorescent lamps is mounted in a metal case 24 with an insulating lining 25, and connected to contact prongs 30 on an insulating closure disc 26. The switch is sealed in a glass envelope 15  and within the casing 24 are a condenser C and a fuse 28. The heads 31 of the prongs 30 fit into arcuate key-hole slots 43 of a base, being retained and connected in circuit b) springs 44 extending from terminals 49. Specification 541,925, [Group XXXVII], is referred to.
Patent GB-1401714-A (GB)
Title: Dimerization or codimerization of alpha olefins
IPC: C07C2/30
Filed: 1973-02-02
Abstract: 1401714 Dimerisation catalysts GOODYEAR TIRE & RUBBER CO 2 Feb 1973 [9 March 1972] 5231/73 Heading B1E [Also in Division C5[ A dimerisation catalyst comprises:-(A) an alkyl metal halide of Al, In, B or Ga, (B) an amine or N-heterocyclic ligand and (C) the reaction product of a tungsten halide or oxyhalide and a phenolic compound. Catalysts used in the Examples comprise (A) Et 3 Al 2 Cl 3 . (B) aniline and (C) the reaction products of WCl 6  and the following compounds: salicyl aldehyde, methyl salicylate, phenol, salicylic acid, 2-hydroxybenzophenone, butyl salicylate, 4-chloro phenol, 2-methyl phenol, 2- bromo phenol and 3-chloro phenol.
Patent GB-654586-A (GB)
Title: Improvements in speech intercommunication systems between remote points
IPC: H04M9/00
Filed: 1948-02-23
Abstract: 654,586. Loudspeaker systems. HADLEY, V. J., and HADLEY, N. C., (trading as HADLEY SOUND EQUIPMENTS), and KILMINSTER, S. A. Feb. 23, 1948, No. 5235. [Class 40 (iv)] In an intercommunication system employing loudspeakers which may also serve as transmitters, calls are established by throwing one of the station selecting switches S1, S2, S3 energizing a pair of relays which complete the circuit and prevent further calls being established. The operation of the switch S2 energizes relays R2 and X1 the former of which besides completing the circuit between stations 1 and 2 via an amplifier A, short-circuits the cathode bias resistor Y of valve V setting up oscillations which act as a calling tone in loudspeaker L, whilst the latter breaks the earth connection to the remaining X relays thus preventing break in. Switches M1 and M2 are thrown at both stations providing one-way conversation, the direction of which is controlled by a switch at the calling station. The priority switch P enables station 1 to establish a connection at any time. Relay X1 and the station R relay are energized over the loudspeaker earth at station 1 so that the required connection is set up and the relays already operated are released.
Patent GB-548909-A (GB)
Title: Securing means for locking two or more parts together or to another part
IPC: B64D29/00
Filed: 1941-04-24
Abstract: 548,909. Air-screw spinners; fastenings. CONSTANT SPEED AIRSCREWS, Ltd., and MARSHALL, F. G. April 24. 1941, No. 5283. [Class 44] [Also in Group XXXIII] In a fastening of the kind in which the fastening is effected by a series of fastening devices having a common movable locking member which effects operation of the series simultaneously or in succession, the locking member is moved by an operating member having rotational movement about its longitudinal axis. Specifications 451,553, [Group XXXIII], 534,971, 539,542, 539,880, [Group XXXIII], 542,051, 544,425, [Group XXXIII], 545,848 and 548,910, are referred to as showing examples of the kind of fastening concerned. The invention is applicable, inter alia, for attaching wings, tail planes and rudders to aircraft, or for securing cowlings, turret covers and inspection panels, but is particularly described as applied to securing an air-screw spinner, Fig. 1, comprising inner and outer concentric shells 2, 3 connected by inclined members 5 which act as fairings for the roots 6 of the propellor blades and as a fan for promoting passage of cooling air. The spinner is secured to members 7, 15 by corresponding concentric locking rings 8 mounted for limited movement as by screws 17 and slots 18, Fig. 5, and having keyhole slots 16 which co-operate with corresponding headed or grooved studs 9. Operation of rings is effected by a spindle 19 inserted radially through suitable openings and rotated about its longitudinal axis. In one form, not shown, the spindle carries pinions which engage singly, or simultaneously, with racks on the locking rings. As shown, pinions 22 are rotatably and slidably mounted in fixed housings 21, and have teeth projecting through apertures in the housings into engagement with rack teeth 25 on rings 8. The pinions are urged radially outwards by springs 23 so that pins 27 on the pinions engage the radial portions of L-shaped slots 29 in the housings 21, to hold the locking rings against accidental movement from locking position. To effect release, spindle 19 is inserted so that suitably spaced square portions 20 thereof engage corresponding holes 24 in the pinions. The spindle is then pressed in to move pins 27 clear of the radial portions of slots 29 and rotated to move the rings 8 so that the studs 9 are released by the slots 16. Fastening is effected by reversal of the above operation. Removal of the spindle except when the parts are secured may be prevented by a pin 31 on the spindle which can pass through a slot 32 in a cover 33 on the outer housing only when the pinions are in locking position.
Patent GB-774390-A (GB)
Title: Improvements to television circuits and the like
IPC: H04N5/16
Filed: 1954-02-23
Abstract: 774,390. Television. SOC. NOUVELLE DE L'OUTILLAGE R.B.V. ET DE LA RADIOINDUSTRIE. Feb. 23, 1954 [Feb. 26, 1953], No. 5303/54. Class 40 (3). In a circuit arrangement for " clipping " the signal from a television camera during retrace periods (to provide a stable level for the insertion of synchronizing pulses) the. camera signal is fed to a cathode-follower stage, the cathode output of which is supplied to a biased limiting device (which " clips " the signal) and the control grid of which is clamped to a predetermined potential (which may be adjustable) during retrace periods. As shown in Fig. 4, the control grid of the cathode follower stage V3, which is supplied with the video signal A (Fig. 1), after amplification and phase inversion in V5, together with negatively-going blanking pulses B, is clamped to a potential determined by the setting of potentiometer P<SP>1</SP> by means of the diodes V6, V7 which are rendered conductive during the occurrence of the " back-porch" by means of clamping pulses F. The output of V3, developed across the cathode resistor R2, is then " clipped " at a level D by means of diode V4, the limiting action of which is determined by a low impedance voltage source 13. In this manner a constant clipping level D is maintained irrespective of operation of the (blacklevel) control potentiometers P1 and of supply voltage variations.
Patent GB-312128-A (GB)
Title: Improved epicyclic gear
IPC: F16H3/66
Filed: 1928-02-20
Abstract: 312,128. Wilson, W. G. Feb. 20, 1928. Variable-speed epicyclic gearing of the kind in which epicyclic trains are compounded and in which there is a basic train yielding an ordinary low speed, as described in Specification 164,042. comprises a supplementary train or trains to obtain one or more compounded emergency lower speeds The sun gear 13 of the basic train 15 initiates the drive in all cases. The sun gear 13 is fast on driving-shaft 10 and the planets 22 of the basic train are on a carrier 23 splined at 20 to the driven shaft 11. The basic low speed is obtained by braking annulus 24. Trains 16, 17 on the right are for obtaining higher speeds as in the Specification referred to. Trains 18, 19 on the left are for obtaining one emergency compounded low speed according to this invention, and a reversible drive. These are obtained by braking elements 29, 33, respectively, the carrier 35 of the last train being splined at 21 to the shaft 11. A second arrangement is described in which there are six trains in all yielding two emergency compounded speeds lower than the low speed of the basic train. In this form, a service brake drum is incorporated. A third arrangement is described with five trains in all yielding one emergency compounded lower speed and no reverse.