baber/WOPTO huggingface dataset:
Patent GB-584199-A (GB)
Title: Improvements in and relating to electric control systems
IPC: G05D3/16
Filed: 1944-12-13
Abstract: 584,199. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd Dec. 13, 1944, No. 25033. Convention date, Dec. 14, 1943. [Class 38 (iii)] [Also in Group XXXVIII] In a system in which a rheostat 16 for controlling the speed of a motor 10 is varied in accordance with the setting of a master potentiometer 11 (see Group XXXVIII), the motor 10 is supplied from an adjustable voltage generator 12 driven at a constant speed. The field winding 12a of the generator is excited from a crossarmature - flux-excited, direct - armature - fluxcompensated dynamo-electric machine 15, which is provided with a main field winding 15a connected across the supply and a voltage control field winding 15b wound in opposition to the first winding. When the motor is at rest, the voltage of generator 12 is zero so that the main field winding is unopposed and the excitation of machine 15 a maximum, causing the generator voltage to rise rapidly. The excitation of winding 15b thus increases so that the net excitation of machine 15 decreases. The voltage of generator 12 then increase at a decreasing rate until a balance point is reached at which further decrease of excitation of machine 15 will cause a decrease of voltage of generator 12. The voltage of generator 12 and thus the speed of motor 10 can then be varied by adjusting rheostat 16.
Patent GB-302415-A (GB)
Title: Improvements in and relating to the conversion of hydrocarbon oils into lighter oils
Filed: 1927-09-22
Abstract: 302,415. Arnold, C., (Standard Development Co.). Sept. 22, 1927. Hydrocarbons, crocking.-In a process for cracking oils in which the oil is conducted under pressure and at high velocity through a heated coil from which it flows into a digestion drum maintained at the same temperature and pressure, the temperature of the oil in the digestion drum is controlled by introducing relatively cool oil into the drum at the same point as the heated oil enters. The plant comprises a cracking coil 1, digestion drum 4, a second optional digestion drum 8 receiving oil through a bye-pass 10, and a dephlegmator 7 provided with the usual plates 14, condensate pan 15 and tar draw-off 16. The crude oil introduced through a pipe 17 is divided into two streams, one passing through the pipe 21 to the cracking coil while the other passes through pipes 23, 24 and mixes with the heated oil from the still 1 in the pipe 3, the flow being controlled, according to the temperature reduction desired, by the valve 25. The crude oil for cooling may also be introduced through a pipe 26. Alternatively a separate supply of oil may be used for cooling and introduced from a tank 34 through a. pipe 35 or the condensate formed in the process may be introduced through a pipe 30. The oil from the drum 4 may be passed to the second drum 8 through pipes 6, 6<1> or passed direct to the dephlegmator through a bye-pass 12. The drum 8 may be heated by burning a portion of the oil vapour by admitting heated air through a head 44. The condensate collected in a tank 59 may be re-cracked by passing it through a pipe 61 into the pipe 17. Pipes 39, 42 are provided for removing heavy residues from the drums 4, 8.
Patent GB-1046058-A (GB)
Title: Electrophotographic materials
IPC: C08F8/20
Filed: 1965-06-14
Abstract: 3,6-dibromo-9-vinyl carbazole is obtained by bromination of 9-b -chloroethyl carbazole followed by dehydrohalogenation.  The bromination is carried out using a mixture of potassium bromide and potassium bromate in acetic acid solution.  The intermediate product 3,6-di-bromo carbazole precipitates out, is recrystallized and isolated in the form of white needle crystals having a m. pt. of 156-157 DEG  C.  The hydrohalogenation is carried out by adding a solution of potassium hydroxide in methanol to a solution of the intermediate in ethanol and refluxing.ALSO:Polymers containing the recurring units represented by the general formula <FORM:1046058/C3/1> in which X represents a member selected from hydrogen and bromine is obtained by the polymerization or copolymerization of 3,6-dibromo-9-vinyl carbazole, or by the bromination of poly-9-vinyl carbazole with N-bromo succimide. Specified comonomers include styrene, 9-vinyl carbazole and 1-vinyl naphthalene.  Compositions of the above polymer are used as photosensitive materials for use in electrophotography (see Division H1).  The compositions comprise solutions of the polymer, together with dye-stuffs, plasticizers and sensitizers.
Patent GB-1156609-A (GB)
Title: Device for the Lateral Guiding of a Travelling Tape
IPC: G11B15/60
Filed: 1967-05-31
Abstract: 1,156,609. Tape-guiding devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 31 May, 1967 [19 July, 1966], No. 25115/67. Heading G5R. In a device for guiding a travelling tape, especially a magnetic tape, having means for exerting a pneumatic guiding force directed towards the desired position of the tape-two air pressure chambers which are subject to non- atmospheric pressure and which coact with one surface of the tape are disposed symmetrically with respect to the desired position of the centre line of the tape, and the tape when moving past the chambers partially closes them, so that any lateral deflection of the tape produces unequal closing of the chambers resulting in unsymmetrical curvature of the tape and its deflection back to its desired course. As shown in Figs. 3 and 4, magnetic tape 6 is guided along a guide member 7 in which are provided two rectangular chambers 8 separated from each other by a tape-supporting guide 9 in the form of a straight longitudinal projection below the centre line of the tape. The chambers 8 are connected to a vacuum source by openings 10. Thus the tape is curved downwardly. If the tape is displaced from its central position, shown, by an external force, the gaps 11 between the tape boundaries and the chambers 8 become unequal; thus one chamber is covered to a greater, and the other to a lesser, extent. In consequence the curvature of the tape over the one chamber increases, and the laterally inward force component F, Fig. 4, relative to that chamber, increases. The two force components F are thus unbalanced, and the tape is urged towards the central position again. The chambers 8 may be triangular or arcuate in plan instead of rectangular, while in Fig. 5c (not shown) the guide 9 extends diagonally. In Fig. 6 a magnetic tape 13 is guided over a member 12 of cylindrical cross-section through which air under pressure is supplied by channels 15 to two chambers 14. Apertures 17 are provided in the central tape-supporting guide 16 so that air can flow outwards therethrough to the underside of the tape to reduce friction. Half the apertures 17 are in communication with one chamber 14 and half with the other. The tape is curved upwardly. Uniform gaps 18 are formed as before.
Patent GB-248661-A (GB)
Title: Improvements in and connected with multiple or combination electric switches
IPC: H01H19/64
Filed: 1925-10-08
Abstract: 248,661. Midgley, A. H., and Auto Sundries, Ltd. Oct. 8, 1925. Switches, quick-break; switches, actuating.-A multiple switch comprises a number of spring- blade contacts h<1> - - h<6> which are brought into engagement with contact pillars g<1> - - g<6> by rotarv movement of a handle d on a shaft c bearing a contact-operating cam drum. In order to vary the switching sequence, the cam drum is made in separable parts k<1> - - k<3> which are mounted on the shaft and coupled with one another in any of several positions in relation to each other. Each part has holes p, p<1> in which engage projections u, u<1> of coupling rings t, one of the coupling members r being driven by the shaft by having an elongated hole fitting over the flattened part f of the screwed end e of the spindle. The cam parts when assembled are clamped in position by an internally threaded sleeve v. If it is desired to vary the order of operating the switches the cam parts may, after being removed, be turned through 90‹ or 180‹ and re-assembled on the shaft.
Patent GB-382369-A (GB)
Title: Improvements in electric fires
IPC: A24B15/14
Filed: 1931-09-08
Abstract: 382,369. Electric radiators. BULPITT & SONS, Ltd. and BULPITT, W. H., Swansea Works, Camden Street, Birming- ham. Sept. 8, 1931, No. 25161. [Class 39 (iii).] In a radiator having a body portion 3 carrying one or more heating elements 8 and hinged about its lower portion to a substantially flat base 2, the body or base is provided w i t h a curved recess or shoulder 13 and the other part is provided with a portion 11 held in adjustable engagement with the recess by one or more clamps 15, the body being retained in the desired position by friction. The body 3 is in the form of a rectangular dish with a beaded edge and a central aperture in which is fitted a reflector 5, the element 8, and a guard 9. The clamps 15 are secured to the base by bolts 17 fitted with nuts 20 and spring washers 21. Pieces of fabric 22 are inserted between the part 11 and the recess 13 and the clamps. A thick plate 29 is secured to the base to secure stability.
Patent GB-253401-A (GB)
Title: Improvements in musical instruction devices
IPC: G10G1/02
Filed: 1925-10-09
Abstract: 253,401. Barnes, I. Oct. 9, 1925. Note indicators for pianofortes and other keyboard instruments. A sheet of cardboard &c. bearing representations of the notes of the scale arranged on two staves and correlated with openings 18 Fig. 1 for the black keys is adapted to fold on lines 15 between the staves and on line 31 along the rear of the openings so as to facilitate application to the instrument as indicated in Fig. 3. The sheet may be divided as shown in Fig. 1 into four or more separate sections. Specifications 21544/10 and 163,921 are referred to.
Patent GB-1223417-A (GB)
Title: Improvements in and relating to portable mixing machines
Inventor: TEAGLE WILLIAM THOMAS
IPC: B28C5/18
Filed: 1967-06-01
Abstract: 1,223,417. Mixing device. W. T. TEAGLE. 22 May, 1968 [1 June, 1967], No. 25263/67. Heading B1C. A concrete mixing device comprises a drum 1 operatively connected to the power take off shaft of a tractor for rotation about its longitudinal axis and pivotably mounted in a frame 14 adapted to be detachably secured to the power lift linkage 17, 18 of a tractor 19 so that the drum can be raised and lowered for transport and filling and can be tipped for emptying.
Patent GB-391020-A (GB)
Title: Apparatus for closing bottles
IPC: B67B3/18
Filed: 1932-09-10
Abstract: 391,020. Capsuling bottles. BOLDT & VOGEL GES., 42, Bahrenfelder Chaussee, Bahrenfeld, Altona, Germany. Sept. 10, 1932, No. 25266. Convention date, Sept. 10, 1931. [Class 125 (ii).] A machine for spinning capsules on to the necks of bottles, of the type having a number of differentlyprofiled rollers, is provided with a guiding member which lies between and holds separated the rollers when a bottle is lifted into the closing position and only allows them to come into engagement with the neck of the bottle when the bottle has reached the closing position. As shown, the guiding member is in the form of a sleeve 16 having a conical portion 16a. This sleeve rotates with the hollow tube 6 and the spinning rollers 9. Through the tube 6 passes a stationary stem 4 terminating in a stamp 17 faced with a rubber disc 21. The lower edge of the stamp is initially at the position indicated by the arrow 15. The bottle is lifted into the mouth of the apparatus and a strip 12 of capsule material, e.g. aluminium, is fed below a cutting die 13, which is then raised, by means such as a cam-actuated fork, and cuts out a disc. The bottle continues upward taking the disc with it, and a ring 11 draws the disc over the bottle mouth, which then presses against and lifts the stamp 17 which engages the sleeve 16, moving the latter out of engagement with stops 8 on the spindles 20 of the rollers. The rubber rixgs 7 then press inwards the rotating rollers 9.
Patent GB-1306331-A (GB)
Filed: 1971-04-19
Abstract: 1306331 Iminodisuccinic acid PFIZER Inc 19 April 1971 [7 Dec 1970] 25320/71 Heading C2C Iminodisuccinic acid is prepared by reacting maleic acid with 1À5-2À5 moles of ammonia per mole of maleic acid in a sealed vessel at 60- 155 C. The product forms two isomers, which may be separated by fractional distillation and crystallization of their methyl esters; or the product may be treated with hydrochloric acid to give the free acids, or with sodium hydroxide to give the sodium salt. The acids are chelating agents, e.g. for calcium ions.
Patent GB-1011084-A (GB)
Title: Windscreen washer nozzle assembly
Inventor: UNGER ERNEST EDWARD
IPC: B60S1/52
Filed: 1963-06-26
Abstract: 1,011,084. Nozzles. FORD MOTOR CO. Ltd. June 16, 1964 [June 26, 1963], No. 25339/63. Heading B2F. [Also in Division A4] A two-part windscreen washer nozzle assembly, Fig. 2, comprises a rivet part 1 adapted to be located in an aperture 27 in a panel 29 and provided with a head portion 5, the lower surface of which engages the upper surface of the panel, and a flexible shank portion 7 having an axial bore, and a pin-like member 3 located with its stem in said axial bore, the arrangement being such that the convex lower surface of the head 21 of the pin-like member 3 co-operates with a groove 13 in the head 5 to form a discharge orifice 31. In Fig. 4 (not shown) the orifice is formed entirely in the pin head. The shank portion is 0-shaped or triangular in cross-section. In the embodiment of Fig. 5 (not shown), the shank 7 may be of circular cross-section and the pin 3 is solid, the orifice 45 being located in an extension 35 provided with a stud 37 which engages a second aperture 39 in the panel 29.
Patent GB-1463924-A (GB)
Title: Electric dry shaver incorporating a trimmer device
IPC: B26B19/10
Filed: 1975-06-13
Abstract: 1463924 Dry shavers SPERRY RAND CORP 13 June 1975 [14 June 1974] 25367/75 Heading B4B An electric dry shaver 10 comprises a casing 11, a main shaving cutter assembly 15 and a trimmer assembly 30 including stationary and movable cutters 38, 40 mounted on a housing element 34 which is pivotably movable on the casing between non-operative and operative positions, springs 60 for normally biasing the housing element towards the operative position and a latch device 68, 74 for maintaining the housing in the non-operative position. The movable and stationary trimmer cutters 38, 40 are mounted between a guard member 39 and the housing element, the movable cutter being connected to a drive member 44 which, when the trimmer assembly is in its operative position, engages with an arm 50 of the main drive member for the shaving cutter assembly 15. The latch device includes a spring 68 which engages a latch projection 74 provided on the guard 39 thereby retaining the trimmer assembly in its non-operative position. Upon operation of a slidable button 72, 73, the latch spring is released thereby allowing the trimmer assembly to move to its operative position under the action of biasing springs 60; a detent spring 65, Fig. 6, locks the housing in the operative position.
Patent GB-1086609-A (GB)
Title: Improvements in or relating to foamed polyurethane resins
IPC: C08G18/32
Filed: 1966-06-07
Abstract: Foamed polyurethanes are prepared by confining separately under pressure a first and second mix, the first mix comprising a propellant and an isocyanate terminated quasi-prepolymer which is the reaction product of a polyol with excess organic polyisocyanate and the second mix comprising a propellant, sufficient polyol to react with the excess isocyanate in the first mix and a catalyst for promoting the reaction, combining the first and second mixes by means of their pressure differential into a common mixture while maintaining the mixture under pressure, agitating the confined admixture to effect a resin forming reaction and releasing the resulting mixture in the form of an aerosol to produce a foamed polyurethane on curing.  The preferred polyols are polyethers or polyesters especially ethylene oxide tipped polyoxypropylene and reaction products of propylene oxide and sorbitol, methyl glucoside and sucrose. Conventional aliphatic and aromatic diisocyanates may be used and the preferred catalysts are tertiary amines. Trichlorofluoromethane is a suitable propellant.  The two mixes are suitably contained in aerosol containers, the mix at the higher pressure being forced into that at the lower pressure.
Patent GB-1358518-A (GB)
Title: Mechanism for the control of reversible step-by-step rotation of selector drums of circular knitting machines
IPC: D04B15/66
Filed: 1972-05-31
Abstract: 1358518 Knitting machines ETUDES ET BONNETERIE SA 31 May 1972 [7 June 1971] 25409/72 Heading D1C A pattern drum 1 of a circular knitting machine is driven in one direction by the action of a cam 21 on either of a pair of toothed wheels 13, 14 or in the other direction by the action of the cam 21 on toothed wheels 15, 16, each wheel of a pair being offset by half a tooth with respect to the other to cause the pattern drum to be moved by a different amount depending on appropriate selection. As shown the wheels 13, 14 are connected to a gear wheel 10 to drive the pattern drum and the wheels 15, 16 to a sprocket 11 which drives the drum in the opposite direction through a chain 11. Selection is made by the vertical movement of cam 19 which is mounted on the needle cylinder 20. In a modification an intermediate shaft may be provided with the driven sprocket and pinion, the said pinion then driving the pattern drum through a further pinion. As shown in Fig. 4 the cam 21 is shaped with a surface 24 to prevent rotation of toothed wheel 22 beyond one tooth pitch.
Patent GB-439797-A (GB)
Title: Improvements in or relating to devices for rolling bandages and the like
IPC: B65H23/04
Filed: 1935-09-13
Abstract: 439,797. Winding bandages &c. BOORE, H. R., 134, Cromwell Road, Hounslow, Middlesex. Sept. 13, 1935, No. 25447. [Class 42 (ii)] A device for winding bandages &c. comprises a fixed corrugated surface 3 and a hinged like surface 4 adapted when closed to provide a sinuous path for the bandage &c. prior to its being rolled on the spindle 7. The spindle is removably held in a recess 9 and slot 10 in the frame and has a bar 11 parallel to it under which the leading end of the bandage is threaded. The member 4 is hinged to the frame 2 and secured by a latch 6. The corrugated members may consist of rounded pieces of wood glued on to backings.
Patent GB-221968-A (GB)
Title: Improved means for utilising the exhaust of internal-combustion engines for producing a forced air draught for cooling purposes
IPC: F23L17/00
Filed: 1923-10-12
Abstract: 221,968. Fell, L. F. R. Oct. 12, 1923. Cooling water by direct contact with cooling- medium.-The circulating water of an internalcombustion engine is cooled by direct contact with a stream of air induced by ejector action of the exhaust. The application to a locomotive is shown. The exhaust passing through a nozzle 4 and a funnel 5 causes air to be drawn through a pipe 14 into a chamber 3 and to mix with it. This air is drawn through louvres in the sides of a chamber 6 which contains a series of sloping trays 7 down which the. water, delivered by a pipe 9, flows to a tank 10, the water level of which is kept constant by an auxiliary tank; the water is then recirculated by a pump 11.
Patent GB-1504868-A (GB)
Title: Spraying apparatus
IPC: A01M7/00
Filed: 1974-08-12
Abstract: 1504868 Spraying-apparatus TURBAIR Ltd 15 May 1975 [7 June 1974] 25490/74 Heading B2F A spraying apparatus, particularly a portable one for spraying, e.g. a vaccine or insecticide, comprises an electric motor in a cylindrical casing 1; an atomized assembly 6, preferably a rotatable one, connected to the forward end of the casing through reduced cross-section tubular extension 5, and a fan 2 coupled to the motor to blow forward radial spray of atomized liquid produced by the assembly. Preferably, the atomized assembly comprises two axially spaced circular plates (8, 9), Fig. 2 (not shown) coupled either directly or through a gear box to the motor for their rotation and a nozzle, (10) connected to a liquid container 16 through a connector 15 supplies the liquid under gravity to the gap between the plates. The radial distance of the connector from the axis of the casing is such that the container does not obstruct the air blown by the fan. A protective back plate (13) is provided between the plate (9) and the casing.
Patent GB-978170-A (GB)
Title: Process for the preparation of water-soluble derivatives of polyene antibiotics
IPC: C07H17/08
Filed: 1962-07-04
Abstract: The invention relates to a process for the preparation of water-soluble derivatives of polyene antibiotics which consists in reacting a polyene antibiotic in an aqueous alkaline medium with a polysaccharide oxidised to a polydialdehyde.  Specified polyene antibiotics are pimaricin, nyastatin, trichomycin and amphotericin. Specified polysaccharides which are oxidised are inulin, dextran, xylon, levan, amylose, and starch. The degree of oxidation of the polysaccharide may be such that at least 50% of the 1:2 glycol groups present in each saccharide unit are oxidised to dialdehyde.  The water-soluble polyene antibiotic derivatives may be used in pharmaceutical compositions containing solid or liquid carriers. Specifications 714,189, 775,485, 795,482 and 844,289 are referred to.
Patent GB-145328-A (GB)
Title: Improvements in or relating to nuts, bolts, screws and the like
IPC: F16B23/00
Filed: 1919-10-18
Abstract: 145,328. Meldal, E. Oct. 18, 1919. Bolts and set-screws; nuts. -A bolt or screw head, nut, &c. comprises a boss having radial arms to receive a turning-tool, the arms being formed integral with a base which is apertured between the arms. In the nut shown in Figs. 3 and 4, a base a<1>, which may be circular or polygonal in contour, has a central threaded boss b<1> from which radiate arms d<1>, apertures e<1> for receiving a tool being provided in the base.
Patent GB-1210995-A (GB)
Title: Electrocoating composition containing a modified epoxidized drying oil
IPC: C08G59/42
Filed: 1969-05-21
Abstract: 1,210,995. Modified epoxidized oils. E.I. DU PONT DE NEMOURS & CO. 21 May, 1969 [1 July, 1968], No. 25900/69. Heading C3B. [Also in Division C7] A polymer (A) consists of (I) 40-80% of units derived from an epoxidized drying oil having an oxirane content of 2-12% by weight; (II) 15-50% of units derived from a C 6-24  acid selected from drying oil fatty acids and aliphatic, optionally hydroxylated, fatty acids; and (III) 0À5-20% of units derived from an α,#-ethylenic unsaturated acid or anhydride or an aromatic dicarboxylic acid or anhydride or an aromatic tricarboxylic acid; the percentages are by weight based on the weight of the polymer. For use as a solution for electrophoretic coating a solution having a solids content of 0À5-40% by. wt. and pH of 6À5 to 9.5 is prepared comprising as film former from 70-99% of polymer (A) and correspondingly 1-30% of a heat reactive condensate, e.g. an alkylated melamineformaldehyde resin. Polymer (A) has a M.W. 1200-4000 and acid number 5-200; the polymer is neutralized with sufficient base to form a water-soluble polyelectrolyte. Examples of reactants for polymer (A) are: (i) 45-55% by wt. epoxidized soya bean oil, 35-45% of - castor oil fatty acids and 5-15% maleic anhydride; (ii) 45-55% by wt. of epoxidized soya bean oil; 35-45% hydroxystearic acid and 4-8% of maleic anhydride; (iii) 55-65% by wt. of epoxidized soya bean oil, 20-30% by wt. of pelargonic acid and 8-12% maleic anhydride. In an example, a polymer as set out in (iii) above (324 g.) is mixed with 36 g. of butylated melamine-formaldehyde resin, 175 parts diacetone alcohol, 2460 g. water and neutralized to pH 7À5-8À5 with dimethylethanolamine (27.4 g.). After deposition the coatings may be cured, e.g. by baking at 200-500‹ C.