baber/WOPTO huggingface dataset:
Patent GB-771112-A (GB)
Title: Improvements in steering gear
Inventor: KENT RODNEY GEORGE
IPC: B62D5/24
Filed: 1952-10-31
Abstract: 771,112. Vehicle power steering. KENT, Ltd., G. Feb. 1, 1954 [Oct. 31, 1952], No. 27397/52. Class 79(5). [Also in Group XXIX] In a road-vehicle steering gear providing a mechanical advantage to the operator, one of the two inter-engaging components of the gear constitutes one of the elements of a control valve for a fluid-pressure power mechanism assisting the steering action, and the other element of the valve is formed by the other component of the gear or by a reaction member holding that component against movement with the first component. In an embodiment, the steering column 3, Fig. 1, actuates the drop arm 7, through a worm-and-follower gear 1, 4 and a rocker arm 5. The follower 4 is formed with flats which have a lost-motion contact with the sides of the worm 1. Two fluid passages 14, 15 run through the rocker arm and end in opposed ports 10, 11 in the flats, and fluid under pressure from a pump 29, Fig. 5, is supplied past resistances 32, 33 to the passages 14, 15 so that, for straight running, with the follower in the mid position in the groove in worm 1, there is an equal leakage of fluid from the two ports 10, 11. To initiate a steering movement, as the worm is turned the lost motion of the follower in the cam groove is taken up and the ports 10, 11 are differentially obturated. This gives rise to differing pressures downstream of the resistances 32, 33 and the two pressures are applied differentially to a bellows 37 which actuates a valve 40 controlling a booster servomotor 47 connected in the transmission. The movement of the servomotor 47 is fed back through a connection 50 to recentre the follower 4. In a modification, each of the passages 14, 15 is fed directly by its own pump, and the output pressures of the two pumps are applied directly and differentially to the two sides of the servomotor. In another modification, the cam follower is replaced by a nut and the fluid passages 14, 15 lead to ports in the faces of a peg which has a lost-motion engagement with the sides of a longitudinal groove in the nut.
Patent GB-1270244-A (GB)
Title: Electric fuse elements
Inventor: LOWE SIDNEY RICHARD
IPC: H01H85/055
Filed: 1968-06-10
Abstract: 1,270,244. Fusible cut-outs. MIDLAND ELECTRIC MFG CO. Ltd. 20 June, 1969 [10 June, 1968], No. 27424/68. Heading H2G. A fuse element comprises a strip having end portions of e.g. copper 20, 21 and an intermediate portion 22 of silver, a body 23 of low melting point alloy adhering to the silver and zones of reduced cross-section being formed in the end or intermediate portions by perforations 24 or notches or by rolling. The trough shaped portion shown may form the silver intermediate section and the low melting point alloy which may be lead/tin solder may be used to secure this section to the copper end portions. The element may be plated with tin or silver and enclosed in a sand filled envelope.
Patent GB-791164-A (GB)
Title: New disazo-dyestuffs and process for making the same
IPC: C09B35/08
Filed: 1954-09-22
Abstract: The invention comprises dyestuffs of formula R1-N=N-R-N=N-R2 which are free of water-solubilizing groups and in which R is a diphenyl residue attached in 4 and 41 position to the azo groups and containing 3 and 31 substituents, and R1 and R2 are residues of formula <FORM:0791164/IV (b)/1> where X is a halogen atom, Y a halogen atom or an acylamino group derived from an aliphatic carboxylic acid containing up to 3 carbon atoms and Z an alkoxy group having at most 2 carbon atoms. They are made in conventional fashion, by diazotizing appropriate 4,41 - diaminodiphenyls and coupling, advantageously in a weakly acid medium and in the presence of wetting agents, with the desired acetoacetylamides.  Specified diphenyls are 3,31-dichloro-5,51 - dimethyl-, 3,31,5,51 - tetrachloro-, 3,31-di-ethyl-, -diethoxy-, especially -dimethyl- and -dimethoxy- and particularly -dichloro-4,41-di-aminodiphenyls.  Preferred coupling components are of formula <FORM:0791164/IV (b)/2> where m and n are 1 or 2, e.g. 1-aceto-acetylamino - 2 - chloro - 4 - acetylamino - 5 - methoxybenzene.  1 - Acetoacetylamino - 2,4 - dichloro-5-methoxybenzene is also specified as a coupling component. The dyestuffs may be formed on a substratum or in substance and may be used in various dyeing, colouring and printing processes.  Fibres or substances stated to be colourable are textiles, e.g. those made from cellulosic and superpoly-amide and-urethane fibres, paper, glass fibres, lacquers, natural and synthetic resins.  Examples are provided of the preparation of the dyestuffs from certain of the above specified components and their use in dyeing, printing and colouring processes.ALSO:Dyestuffs of formula R1-N = N-R-N = N-R2, which are free of water-solubilizing groups and in which R is a diphenyl residue attached in 4 and 41 position to the azo groups and containing 3 and 31 substituents, and R1 and R2 are residues of formula:  <FORM:0791164/IV (a)/1> where X is a halogen atom, Y a halogen atom or an acylamino group derived from an aliphatic carboxylic acid containing up to 3 carbon atoms and Z an alkoxy group having at most 2 carbon atoms, are used as pigments in polyvinyl chloride compositions.  In an example polyvinyl chloride, dioctylphthalate and the dyestuff 3 : 31-dichloro - 4,41 - diaminodiphenyl \sQ 1 - acetoacetylamino - 2,4 - dichloro - 5 - methoxybenzene are calendered at 140-145 DEG  C. to produce a foil.ALSO:Dyestuffs of formula R1-N = N-R-N = N-R2 which are free of water-solubilizing groups and in which R is a diphenyl residue attached in 4 and 41 position to the azo group and containing 3 and 31 substituents, and R1 and R2 are residues of formula: <FORM:0791164/V/1> where X is a halogen atom, Y a halogen atom or an acylamino group derived from an aliphatic carboxylic acid containing up to 3 carbon atoms and 2 an alkoxy group having at most 2 carbon atoms are used to colour rubber.
Patent GB-743238-A (GB)
Title: Apparatus for testing the tensile strength of chains and other elongated flexible members
IPC: G01M13/02
Filed: 1953-10-06
Abstract: 743238. Electric indicating systems. ESSER. P., [trading as MEYER, ROTH & PASTOR]. Oct. 6, 1953 [Oct. 13, 19521, No. 27471/53.. Class 40(1) [Also in Group XIX] An electrically sensitive apparatus for subjecting chains or other elongated flexible members to a tensile test, has the chain or other member 5 arranged horizontally between two grips 8 and 19, the grips being movable along a track 17 and so arranged that they lift therefrom during a test to avoid sliding friction of the grips on the track during a test. An electric pressure responsive cell 15 measures the tension exerted during a test: The grips may have rollers 18 that rest on the track 17 when the member 5 is not under tension.
Patent GB-1197332-A (GB)
Title: Aquarium Filter Apparatus
IPC: F04D13/02
Filed: 1967-06-14
Abstract: 1,197,332. Aquaria. AQUARIUMS Inc. 14 June, 1967 [15 July, 1966], No. 27521/67. Heading A1A. [Also in Division B1-2] Water is circulated between an aquarium tank and a filter unit (Fig. 1, not shown), as described in Specification 1,120,161, by a rotary impeller, mounted by ball 110 on ferrule 104a, which is rotated by an electric motor through magnetic coupling 102, 130, the motor being enclosed by a casing having apertures 200, 200a which enable convection currents of air to circulate over the motor and up around the filter unit housing 24, so that the heat dissipated by the motor warms the water as it passes through the filter. The heat may be sufficient to keep the aquarium at the desired temperature, or may be supplemented by a conventional immersion heater. The rotor 224 of the motor is vertically movable in its bearings so as to float freely, supported by the interaction of magnets 102, 130 and of the magnetic fields of the rotor and stator, while it is rotating. Fig. 2 (not shown) illustrates its rest position. Wheel 138, which turns with the motor, may have fan blades to increase the air flow.
Patent GB-389884-A (GB)
Title: Improvements in the manufacture and production of vinyl keytones
IPC: C07C45/66
Filed: 1931-10-03
Abstract: Vinyl ketones are obtained by splitting off water from a -a dimethylol ketones (obtainable as described in Specifications 361,597 and 381,686) by distillation, if desired in the presence of a non-alkaline dehydrating catalyst which is not capable of causing polymerization.  Suitable catalysts are aluminium oxide or hydroxide, zinc, chromium, tungsten, thorium and titanium oxides, or mixtures thereof, acids such as tungstic and phosphoric acids, and salts, such as aluminium phosphate, primary sodium phosphate, sodium bisulphate, calcium chloride, and ammonium tungstate. Dehydrating catalysts causing polymerization such as sodium metaborate, sulphuric acid, aluminium and iron chlorides, and boron fluoride are to be avoided. The resinous polymerization products of the vinyl ketones may be employed in coating and moulding compositions.  In examples (1) a a dimethylol acetone prepared according to Specification 361,597 is distilled in vacuo with an addition of phosphoric acid; (2) a a dimethylol acetone prepared by condensing acetone with formaldehyde in neutral aqueous solution, is distilled as described in the first example; (3) and (5) a a  dimethylol acetone is distilled in vacuo with aluminium oxide and aluminium phosphate respectively; in each of these examples the product is <FORM:0389884/IV/1> ; (5) a  - a dimethylol-methyl ethyl ketone is distilled at atmospheric pressure with aluminium oxide.  Specifications 181,575, [Class 2 (iii), Dyes &c.], and 349,556 also are referred to.
Patent GB-639320-A (GB)
Title: Improvements in or relating to the mounting of turbine, compressor or like blades
IPC: F01D5/32
Filed: 1948-10-22
Abstract: 639,320. Turbine blading. HARRIS, F. R., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 22, 1948, No. 27542. [Class 110(iii)] A turbine rotor 1 has a blade groove with serrated side walls and the roots of the blades are inclined to the axial direction. The blade roots are put into the groove sidewise and turned into position. The space in which the last blade is turned is closed by a filling piece comprising two outer serrated parts 4 and a centre part 13. During insertion the ends of the screws 16 are flush with the bottom of the centre part, and all three parts can be inserted in the groove. The part 13 is then moved to a central position and forced outwards by the screws 16 so as to wedge the three parts together. The projecting parts of the screws are then sawn off.
Patent GB-425700-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G13/00
Filed: 1933-10-06
Abstract: 425,700. Weighing-apparatus fitted to cigarette-making machines; scale pans. MOLINS, W. E., 2, Evelyn Street, Deptford, London. Oct. 6, 1933, Nos. 27546 and 17982. [Class 143] [See also Group VI] A weighing device, particularly suited for checking the consistency of cigarettes, is provided with means operative to retain an article (for example, a cigarette) in the scale pan during a weighing operation and capable of being operated by the next succeeding article to be weighed, in order to release the weighed article from the pan. As shown in Fig. 1, cigarettes placed in a hopper 1 are transferred singly by a fluted drum 2 and a stripper plate 5 to a scale pan 6, a rotating roller 4 preventing jamming. The scale pan has a flexible side 16 adjustable by a screw 18 and arranged so that the weight of one cigarette only can be supported between the flexible side and the opposite side 15. When a cigarette drops into the scale pan the flexible side is forced away and the previously weighed cigarette is caused to fall out on to a conveyer 20. The new cigarette is then weighed and a perforated record is automatically obtained by a needle 12 on a card or chart moved in synchronism with the drum 2 and actuated in the manner described in Specification 365,799. The cigarettes instead of being deposited on a conveyer 20 may be deposited in various receptacles according to their weights. In a modification, wherein the weighing device is attached to a cigarette-making machine of the continuous rod type, single cigarettes are periodically transferred from the cigarette line to the scale pan by a radial deflector mounted on a rotatable drum as described in Specification 421,551, [Group VI], or alternatively the cigarettes may be periodically transferred as described in Specification 375,463 ; in a further alternative the periodical selection is effected by the collecting drums described in Specification 421,551 and used for transferring the cigarettes from the line to a collecting belt. One of the radial deflectors on one of these drums is replaced by a fork slidably mounted and cam-operated so as to pick up and transfer a cigarette periodically. A shroud may be provided over a portion of the drum to assist the action of the fork. Instead of using a recording chart as described above, a counting mechanism constructed in accordance with Specification 425,721 may be used, one counter registering the number of cigarettes falling within the prescribed limits of weight and two others registering those above and below these limits. When it is desired to regulate the tobacco feed of the machine the last-mentioned counters are each provided with a gapped camplate 41, Fig. 5, attached to the actuating ratchet wheel. Feeling elements 44 engage the peripheries of the cam-plates and, in co-operation with the gaps 42 actuate levers 46 which control feed-regulating mechanism of the type described in Specification 327,098, [Class 130], or 420,755.
Patent GB-654325-A (GB)
Title: Improvements relating to auxiliary engines for cycles
Inventor: GOTTLIEB DAVID
IPC: B62M7/10
Filed: 1948-10-22
Abstract: 654,325. Auxiliary engine units and mudguards for cycles. CYMO, Ltd. Oct. 22, 1948, Nos. 27567 and 32040. [Classes 79 (iii), 79 (v) and 136 (i)] [Also in Group XI, An auxiliary engine assembly for a cycle comprises an engine mounted on the cycle frame so that it can be moved to bring a friction driving wheel into or out of contact with the front wheel, and a cowling surrounding the engine and having a slot within which the friction wheel is situated. The cowling may comprise a back plate mounted on the steering column and a front cowl arranged to enclose the engine and to be attached to the back plate. As shown the back plate 18 of the cowling is secured by a clip 19 to the steering column and by cleats 26 secured to brackets 23 on the wheel forks 24, the clip and brackets having a slot to engage with the plate 18. The plate 18 is provided with a slot 27 to clear the front wheel 10. Secured to flanges on the sides of the slot 27 are side plates 31. The engine is pivotally mounted on the plates 31 by means of a pivot 32 passing through a lug 33 in an engine body casting 16, the casting being bolted to the engine crankcase 12 and carrying the crankshaft to which is secured the friction roller 17 and a dynamo type flywheel 13. The engine is rocked about the pivot 32 to disengage the roller 17 from the tyred wheel 10 by a handle 36 secured to the crankcase and projecting through the back plate 18. According to the first Provisional Specification the handle is upright and projects through the upper part of the cowl. The engine is maintained in the disengaged position by means of a pivoted lever 38 having a crutch 43 engaging a pin 42 on the engine which rides in a slot in one of the plates 31. The lever 38 is maintained in the engaged position by a spring 41 and is disengaged from the pin 42 by a wire 44 controlled from a knob 46 behind the plate 18. Thus engagement of the roller with the tyred wheel requires a two-handed operation of the handle 36 and the knob 46. The roller is urged into engagement with the wheel by springs 34. The engine throttle and a decompressor valve 63 are controlled through cables 58, 59, by a single lever 57 disposed on the handlebars, operation of the valve 63 by the lever 57 being outside the range of movement of the lever for controlling the throttle. Secured to a flange 25 of the plate 18 by toggle catches 66 is the front cowl 64. The cowl 64 is provided with a deep slot fitting over the wheel 10, a stub mudguard 67, louvred openings at the front and sides for admitting cooling air which is vented through the back plate 18, and a lamp 73. The lamp is supplied with current from a secondary cell which is charged from the dynamo flywheel. The cowl 64 is also provided with an opening for receiving the filling nozzle 76 of a fuel tank 14 carried by the plate 18. In a modification the tank 14 forms an integral structure with the front cowl.
Patent GB-1056674-A (GB)
Title: Improvements in or relating to the preparation of polymers and copolymers having a base of vinyl chloride
IPC: B01J19/18
Filed: 1964-07-03
Abstract: In a process as claimed in Claim 1 of the parent Specification for the bulk polymerization of vinyl chloride in a first stage provided with high speed agitation followed by a second stage in apparatus for the low speed agitation, the second stage is carried out in a vertical stationary polymerizer provided with agitation means comprising at least one ribbon wound to form one or more helicoidal turns which pass close to the walls of the polymerizer, the ribbon or ribbons being fixed by at least one support to a rotary shaft extending axially through the lid of the polymerizer. The agitator is preferably so designed and driven that the reaction medium is moved upward in the vicinity of the polymerizer walls and descends in the axial portion of the polymerizer either under gravity or under the influence of further ribbons attached to the rotary shaft.  The ribbons may be provided with scrapers. Apparatus suitable for carrying out the process of the invention is described and illustrated and examples describe the polymerization of (2) vinyl chloride and (3 and 4) vinyl chloride and vinyl acetate in the presence of azodiisobutyronitrile.
Patent GB-941125-A (GB)
Title: Improvements in and relating to separat'on of zirconium and hafnium
Inventor: KELLER WAYNE HICKS
IPC: C22B3/38
Filed: 1961-07-29
Abstract: Zirconium and hafnium salts are separated by feeding an aqueous solution of their mixture into an extraction column in which an aqueous continuous phase is passed countercurrent to a disperse organic phase, passing the zirconium containing organic phase to a decantation zone, passing the decanted organic phase to a stripping column in which the zirconium salt is extracted from the organic phase with water, periodically analyzing the interface of the continuous organic and aqueous phases in the extraction column for solids, and on their detection, continuously withdrawn from the decantation zone a stream comprising solids, organic and aqueous phases.  The stream withdrawn may be passed into a second decantation zone in which the solids are removed, and the liquid phases returned to the extraction column.  The process is preferably performed using an acid aqueous phase and feeding the mixture to the extraction column at a point between the aqueous and organic feed points.  The invention is described with reference to a flow sheet (not shown) using zirconyl and hafnyl nitrates, tributyl phosphate diluted with a hydrocarbon as the organic phase and nitric acid using a rotary disc contactor as the extraction column.  The purified zirconium salt is stripped from the organic phase with diionized water preferably by countercurrent contact in the stripping column.  Reference has been directed by the Comptroller to Specifications 800,426 and 807,249.
Patent GB-1038946-A (GB)
Title: Production of improved epitaxial films
IPC: H01L21/205
Filed: 1963-07-12
Abstract: An epitaxial film of a compound of an element from Group IIIB of the Periodic Table of Mendeleef with an element from Group VB (an AIIIBV compound) is produced by deposition of the compound from a gaseous mixture containing the elements of at least one such compound in free or combined form upon the (100) crystallographic face of a seed crystal substrate of an AIIIBV compound.  (Millerian indices as accepted by the International Union of Crystallographers.) The deposition process is carried out at 135-1200 DEG C. and may take the form of any known process for producing epitaxial films, e.g. (i) hydrogen halide transport of crude AIIIBV compound from a first zone to a second containing the substrate crystal (ii) interaction of boron, aluminium, gallium or indium halide with phosphorus, arsenic or antimony in the presence of hydrogen at 500-1500 DEG C. (iii) interaction of volatile IIIB and VB compounds in the presence of hydrogen at 400-1500 DEG C. (iv) interaction of the reaction product of a hydrogen halide and a IIIB element with a gaseous mixture of hydrogen and a volatilized VB element or compound (as described and claimed in copending Specification 1,038,879).  Mixed binary crystals, or ternary and quaternary compounds <FORM:1038946/C1/1> Bv and <FORM:1038946/C1/2> may also be prepared (0<x,y<1), e.g. CaAsxP(1-x). The epitaxial film and/or the substrate may be "doped" with Be, Mg, Zn, Cd or Hg to produce p-type or with Sn, SnCl4, S, Se or Te to give n-type conductivity.  Electronic devices containing a plurality of epitaxial layers of differing conductivity may thus be built up by successive deposition upon the said crystallographic face.
Patent GB-1383666-A (GB)
Title: Apparatus for aerating liquids and rotor blades for use therewith
IPC: B01F3/04
Filed: 1972-06-14
Abstract: 1383666 Agitating and aerating liquids MANOR ENG CO Ltd 14 June 1972 27773/72 Heading B1C A rotor blade for aerating sewage comprises a pair of wing portions 10, 11 each of which is arcuate in section at least near the blade tip and presents a convex surface towards the other wing portion. They may be separated by a slit 13 as shown, or joined, (see Figs. 1-8, not shown); the slit, where present, may be of venturi section. The wings may as shown broaden towards the tip, or narrow, (see Figs. 15 and 16, not shown) in which case the tips may be parallel or angled to each other. The wing sections may be mirror images as shown, or asymmetrical (see Figs. 7 and 8, not shown) when it is desired to deflect the flow of liquid.
Patent GB-417895-A (GB)
Title: Improvements in screw bolts
IPC: F16B41/00
Filed: 1933-10-10
Abstract: 417,895. Bolts. WOOLLARD, F. G., and ANSTEY, F., c/o Successors to Rudge- Whitworth, Ltd., Rudge Works, Coventry. Oct. 10, 1933, No. 27858. [Class 89 (i).] To prevent the unauthorized removal of a fitting, for example, a lamp from a cycle, the bolt c which passes through apertured lugs on the vehicle bracket a and the centrally disposed fitting d on the lamp e is grooved below its screwed end and a washer j is sprung into the groove. The removal of the nut alone does not permit the bolt to be withdrawn, but the groove is made long enough to allow the bolt sufficient axial play on the washer to allow the lamp being adjusted.