baber/WOPTO huggingface dataset:
Patent GB-1186885-A (GB)
Title: Full-Wave Proportional Power Control System
IPC: G05F1/455
Filed: 1967-04-05
Abstract: 1,186,885. Control of A.C. loads; control of A.C. motors. ABBEY AUTOMATION SYSTEMS Inc. and H. G. ABBEY. 5 April, 1967 [5 April, 1966], No. 15596/67. Headings H2H and H2J. [Also in Division G3] A full wave proportional power control system for a star connected three phase load (Al-Cl) having cyclic delta connected phase controlled thyristors (SCR a-c) at the neutral point has a control circuit arranged to provide a 60 degrees firing point advance with respect to the corresponding voltage zeros to allow for the lagging effect of inductive loads, which point is variably retarded over a 180 degrees range to control the load voltage. The load may be a transformer-rectifier arrangement for electroplating or an electric motor. The thyristors are fired cyclically so that full wave current can pass through each load. The output of phase advancing circuit 12, 13 is modified by a saturable reactor 10 having a control winding 1, 2 connected between a feedback voltage representative of load voltage, and a reference voltage, and other control windings 3-8 for purposes unspecified. A circuit 20, 21 prevents the error voltage assuming control if the reference voltage is lost.
Patent GB-544819-A (GB)
Title: Improvements in the manufacture of articles and linings from plastic materials
IPC: C03B27/012
Filed: 1940-10-26
Abstract: 544,819. Moulding concrete &c. pipes, linings &c. REEVES, R. B. Oct. 26, 1940, No. 15736. [Class 87 (ii)] Relates to apparatus of the kind comprising a, core 7a having a rubber sleeve 8 which is forced outwardly from the core by fluid pressure introduced between the core and the sleeve, so that the concrete &c. is compressed between the sleeve and the mould. According to the invention the mould is in sections which, for the purpose of detachment thereof from the moulded article, are radially slidable between guide rings 16 provided on an outer casing 15 which encloses the mould, the guide rings preventing axial displacement of the mould sections. The two halves 13a, 13b of the mould are held together by an extensible sleeve 14, and are supported against outward pressure by pressure fluid admitted from a pipe 18 to the space 18a between the space 14 and outer casing 15. Pressure is admitted between the sleeve 8 and core via a pipe 11- and holes 12. In use the mould is filled and vibrated, and a sealing plate 21 is secured in place by bolts &c. After moulding is completed the pressure is released from the core and the sleeve 8 springs back, leaving the moulded pipe clear. The pipe 18 is then uncoupled from its pressure source (but pressure is maintained in the space 18a) and the casing 15 is detached from the base flange 10a and together with the mould sections 13a, 13b and the pipe is lifted from the core 7a and base 10. The pressure is then released from the space 18a, the mould sections are drawn away radially from the pipe against the pressure of the sleeve 14 by handwheels 20 and threaded rods 19 secured to the mould sections, and the mould sections and casing are lifted off the pipe. In Fig. 4 the mould sections comprise three outer segments 27 and many inner segments 26 having joints 31 therebetween which retain concrete but allow water to run away. In Fig. 5 the end of the pipe is shaped by a member 40 urged upwards by a piston 35 in communication with a fluid pressure at 41. When an article is to be lined it is placed between the mould and the lining 8.
Patent GB-108782-A (GB)
Title: Improvements in Furnaces for Refining Metals.
Inventor: KERMODE GEORGINE
IPC: C22B19/06
Filed: 1916-11-04
Abstract: 108,782. Kermode, G., and Miller, A. R. Nov. 4, 1916. Muffle furnaces.-A muffle furnace for refining metals, more particularly zinc or spelter, comprises a closed muffle b heated by flues which are formed only round its sides and top and are provided with baffles which cause the heating-gases from the fire-place d to pass sinuously upwards and downwards in the side flues and across, to and fro, in the top flue. To effect this, the baffles in the top flue extend right across the muffle, and the baffles in the side flues are alternately long and short as shown in Fig. 4, the short baffles forming at their lower ends passages which connect the various parts of the flues. The combustion products pass away to the chimney through a flue f beneath a series of pots h arranged in the bed so that the metal drains into them in succession. Plates k, k' assist respectively in feeding the dross and removing the molten metal by means of ladles.
Patent GB-733078-A (GB)
Title: Improvements in or relating to joints for tubular members
IPC: F16B7/04
Filed: 1952-06-23
Abstract: 733,078. Handrails, ground anchors. MUDD, D. P. Sept. 22, 1953 [June 23, 1952], No. 15805/52. Class 45. [Also in Group XXVIII] In a joint between a tubular member 4 and a member 1, which may be hollow or solid and of cast steel or malleable iron, the member 1 has a dowel 2 over which the member 4 is engaged and the wall of the latter is deformed locally by a punching operation to form internal projections 9 which engage in a number of spacedapart depressions 6 extending partly round the peripheral surface of the dowel. The depressions are of elongated form and have their longer axes arranged circumferentially of the dowel 2, the depth of the depressions being a maximum at the centres thereof. As shown in Fig. 2, tubes 3, 4 are joined end-to-end by a member 1 provided with two dowels 2 and an integral collar 5 or shoulder preferably equal in diameter to the tubes, the depressions being arranged in diametrically-opposed pairs and the collar or shoulder having guide marks 7 to indicate the positions of the depressions when covered by the tubes. In modifications (a), Fig. 4 (not shown), the member 1 is formed with a base portion for connection to the side of a platform or a stair, and is used for the erection of a standard forming part of a handrail; (b) a foot fitting 31, Fig. 6, has a part 32 for mounting in concrete and provided with a series of tapered projections 35 extending halfway round that part; (c) a foot fitting comprises a base 41, Fig. 7, including a flange 43 for securing to a platform and a socket 46 into which is detachably fitted the spigot portion 47 of a member 42; (d), Fig. 8 (not shown), a fitting has a pair of oppositely-disposed dowels between which is a boss portion formed with a bore to receive a transverse rail member, the boss being provided with one or more depressions or dimples whereby by the use of a punch the material of the fitting is deformed to produce internal projections to bite into the rail; (e), Fig. 9 (not shown), a dowel is provided with a transverse pad for fixing a tube to a flat surface; and (f), Fig. 10 (not shown), a fitting having a dowel portion and a cap portion is used for closing the open end of a tubular member.
Patent GB-425658-A (GB)
Title: Improvements in and relating to dental spittoon-units
IPC: A61C17/14
Filed: 1934-05-29
Abstract: 425,658. Spittoons; sanitary traps. DENTAL MANUFACTURING CO., Ltd., Brock House, Great Portland Street, London, and LEE, W. G., 75, Cedar Lawn Avenue, Barnet, Hertfordshire. May 29, 1934, No. 16004. [Classes 26 and 33] In a dental spittoon unit, the bowls 1, Fig. 3, are mounted upon the arms of a rotatable U- member 2 supported at the free extremity of a swinging hollow arm 4 which forms the waste - pipe from the bowls and is combined with a stiff metal pipe 10 carried by a bearing 9, Fig. 2, on an extension 8 of the pedestal bracket 6 upon which the arm 4 is supported. The supply pipe 16 communicates via a passage 17 in the extension with a valve 19 from which water may pass to a groove 25 and thus to the pipe 10. The latter communicates with a tap 22, by a pipe 21 disposed within a post 23 upon which the member 2 is mounted. The member 2 also serves to conduct waste from the bowls to the arm 4, which is hollow and communicates at the pedestal end with the interior of a member 11, upon which the arm 4 rotates, and thence with the waste-pipe 12. The arm 4 may be provided with a trap constituted by a pipe 13 and a cap 24 having a valved pipe 14 for draining the arm before inspection of the trap.
Patent GB-322199-A (GB)
Title: Apparatus for regulating voltage in alternating current distribution systems
IPC: G05F1/325
Filed: 1928-06-01
Abstract: 322,199. Ganz-Fele Villamossagi Reszvenytarsasag. June 1, 1928. Addition to 291,101. Regulating transformers. -In the voltageregulating transformers of the parent Specification, auxiliary coils or connections are provided to prevent voltage drop due to the load in the series coils f at times when the voltage is not being regulated, i.e. when neither of the flux paths I, II is being saturated by the direct current coils g. At such times, auxiliary coils t are interconnected in a closed circuit 3 so that the flux 1 of the shunt coil s produces equal and opposite voltages, and so no current, in the circuit 3 whilst the flux 2 of the coils f produces currents in the circuit 3 which equalize the flux in the paths I, II. The inter-connection is broken when either path I, II is saturated. The coils t may be connected through a coil 4 the core of which is saturated by direct current effectively to interconnect the coils t. In a modification, the coils tare omitted and the exciting coils are similarly interconnected when neither is excited.
Patent GB-1163988-A (GB)
Title: Disperse Blue Anthraquinone Dyestuffs
IPC: C09B1/514
Filed: 1967-04-10
Abstract: 1,163,988. Anthraquinone dyes. INTERCHEMICAL CORP. 10 April, 1967 [22 June, 1966], No. 16240/67. Heading C4P. The invention comprises compounds of the formulµ The compounds are prepared by condensing P- amino-α,α-bis (trifluoromethyl) benzyl alcohol with 1 - hydroxy - 4 - nitro anthraquinone, 1,4- dihydroxy anthraquinone and 5,8 substituted derivative thereof.
Patent GB-503053-A (GB)
Title: Improvements connected with refining machines for cocoa-containing and like masses
IPC: A23G1/14
Filed: 1938-06-01
Abstract: 503,053. Cocoa-refining. LEHMANN, F. B., [trading as LEHMANN, J. M., (Firm of)]. June 1, 1938, No. 16353. Convention date, July 5, 1937. [Class 86] A machine for refining cocoa comprises means for feeding the cocoa to a rotating, bladed roller which throws it outwardly in a divided condition to fall into the mass in the pan of the mixing-machine. Fig. 1 shows a form in which the machine comprises a pan 2 with a reciprocating roller, the cocoa being fed by a pump 6 and pipe 5 on to a hollow, rotary, bladed roller 1, through perforations in which air may be forced. The mixer may be of the vertical spindle type, or, as shown in Fig. 3, of the rotary drum type in which the cocoa is raised by the rotation of the drum 4 to a fixed scraper 8 which feeds it on to the roller 1.
Patent GB-653693-A (GB)
Title: Automatic firearm
IPC: F41A3/38
Filed: 1948-06-17
Abstract: 653,693. Automatic guns. VERWALTUNGSGES. DER WERKZEUGMASCHINENFABRIK OERLIKON. June 17, 1948, No. 16362. Convention date, June 20, 1947. [Classes 9 (i) and 92 (ii)] An automatic gun comprises a reciprocating breechloading member 4 and at least one closure bolt 7 pivoted to the breech casing 3 and engaging, when the breech is closed, immediately behind a projection 29 provided on the base of the cartridge case 28 to resist the force due to gas pressure on firing. In the form shown, the breech casing 3 of a fixed barrel gas-operated gun has pivoted thereto at 9, 10 two breech closure bolts 7, 8 the forward surfaces of which are conical to engage a conical surface 29 on the base of the cartridge when the breech is closed as shown. The usual longitudinal slide 4 which serves to load the cartridge into the breech chamber may thus be made light in weight to increase the rate of fire. Each bolt, for example 7, is controlled by a front and rear pair of slides 13, 11 connected by a spring 15. As the cartridge loading member 4 approaches its forward position it engages the slide 11, first to release a forward extension 17 retaining the bolt 7 in open position, and afterwards to press the slide 13 forwards so that the bolt 7 is cammed inwardly over the cartridge base and retained by a surface on the slide engaging a surface 25 on the bolt as the spring 15 expands. On firing, the gas piston 32 moves the slide 13 rearwardly to release the bolt 7 so that the recoil of the cartridge case can then move the bolt outwardly and the member 4 rearwardly to open the breech and stress the return spring 5. The slide 11 then returns to enable its projection 17 to engage under the nose 19 to lock the bolt in its open position.
Patent GB-930415-A (GB)
Title: Electrical conductor joints
Inventor: EYRE JOHN RICHARD
IPC: H01R9/05
Filed: 1962-04-30
Abstract: 930,415. Sleeve couplings. STANDARD TELEPHONES & CABLES Ltd. April 30, 1962, No. 16382/62. Class 38 (1). Two coaxial cables 1, 2 having inner conductors 3, 4 and outer conductors 8, 9 separated by dielectric spaces 6, 7, are joined by means of a threaded conducting ferrule 5 which is screwed on to threads 10, 11 on the inner conductors 3, 4. Conductor 3 is threaded 10 to the length of the ferrule 5, while conductor 4 is threaded 11 to half this length. A dielectric spacer 14 is pressed on to the ferrule 5 which is then screwed on to the thread 10 of the conductor 3. Conductor 4 is then aligned with conductor 3 and the ferrule is screwed from conductor 3 on to conductor 4 until the whole of the thread 11 is covered by the ferrule. The joint is then heated and solder is introduced via slots 13 in the ferrule 5. The joint is then completed by assembling a known type of outer conductor joint 15.
Patent GB-1058432-A (GB)
Title: Improvements in a method of and apparatus for electrically connecting terminal posts
IPC: H05K13/06
Filed: 1965-04-20
Abstract: 1,058,432. Making electrical connections; shearing. AMP Inc. April 20, 1965 [April 27, 1964], No. 16463/65. Headings B3A and B3W. In apparatus for electrically connecting at least two terminal posts with a conductor, as described in Specification 1,013,490, the wire feed means are controlled so as to feed wire to the applicator at the speed of movement thereof. The lead screw (437) of the applicator carriage (10), (Fig. 33, not shown) is fitted with a quantisizer disc 454 having clear areas 456 through which light can pass to impinge on two photo-electric cells (462) (Fig. 35, not shown). Pulsating current from these cells is fed to a comparator comprising command and position registers. Movement of the applicator ceases when the number of pulses fed to the position register is equal to the number of pulses previously fed to the command register. The wire feed motor 80 is controlled by light impinging on photo-electric cells 464, 466. If the applicator is travelling in a cardinal direction a speed selector 478 permits the signal in line 476 to pass through the line 482 to the motor. When the applicator is travelling diagonally, the signal from the line 492 passes to the motor and the signal in line 482 is blocked. The speed selection circuits 478 are under the control of a magnetic tape at 479. Shearing.-When the applicator is adjacent a terminal post. to which a wire is to be connected, movement of the applicator is stopped and a shear blade (256) (Fig. 29, not shown) cooperates with a mandrel edge (401) to cut the wire to length.
Patent GB-1148482-A (GB)
Title: Silver halide dispersions
IPC: G03C8/00
Filed: 1966-04-15
Abstract: 1,148,482. Silver halide emulsions. EASTMAN KODAK CO. April 15, 1966 [April 15, 1965], No.16509/66. Heading G2C. An aqueous dispersion of silver halide grains contains as a peptizing agent a polymer having repeating units of formula 1 or 2: wherein # represents units of a hydrated polysaccharide or hydrolyzed cellulose acetate, and R 1  and R 2  are alkyl of 1-8 C atoms, aryl, or R 1  and R 2  together with the N atom from a heterocyclic ring of 5 or 6 atoms, R 3  is alkyl of 1-6 C atoms and <SP>e</SP>A is an anion, e.g. p-toluenesulphanate. The polymer may also have other repeating units, particularly units of the formula wherein 2 or more of A, B, D and E are hydrogen and the others are alkyl, aryl, acyl, acyloxy, cyano, diacylimido, alkoxy, aryloxy, or carboxy; or units of vinyl alcohol. A specified polysaccharide is α-amylose. The polymer may be used with gelatine, polyvinyl alcohol or a vinyl acetate - vinyl alcohol copolymer. The ratio of gelatine to polymer may be 4:1 to 99:1. The emulsion may also contain physical development nuclei e.g. colloidal silver. The dispersion may be formed by reacting a water soluble silver salt with a halide salt in anaq. soln containing the polymer. Such an emulsion may be coagulated and redispersed in gelatine. The polymer may be incorporated in the light-sensitive layers of a silver salt diffusion transfer process. The emulsions may contain the usual additives and may be coated on a support e.g. cellulose acetate, polyester, polycarbonate, or polyolefin-coated or uncoated paper.
Patent GB-814544-A (GB)
Title: Sanitary bed
IPC: A47D15/00
Filed: 1956-05-29
Abstract: 814,544. Sanitary beds. KNOWLES, F. W. Feb. 1, 1957 [May 29, 1956], No. 16539/56. Class 52(2) A perforated or reticulated sheet of flexible non-metallic water repellant material 12 is supported on a close-sided base 10 provided with a heating device 19. Wicks or threads 16, weighted with beads 17, may be suspended beneath the sheet to facilitate drainage into a removable receptacle 15.
Patent GB-836500-A (GB)
Title: Plastic modelling composition
IPC: C08L3/00
Filed: 1958-05-22
Abstract: A plastic modelling composition is obtained by mixing grain flour; water; a non-toxic water soluble salt; a hardening agent; a preservative, antiseptic and drying agent and an odourless hydrocarbon distillate at such a temperature that at least part of the flour is gelatinized.  Specified are; hardened-aluminium sulphate, alums; distillate-kerosene; flour-wheat, rye; salt-sodium chloride, hypochlorite or chlorite; preservative-borax, salicylic acid, sodium benzoate, sorbic acid, sodium and calcium proprionate, acetic acid and vinegar.  Perfume and/or dyes are optional. Gelatinizing temperature is at least 160 DEG F.
Patent GB-290056-A (GB)
Title: Improvements in or relating to hinged lasts
IPC: A43D3/02
Filed: 1927-06-22
Abstract: 290,056. Mobbs & Lewis, Ltd., and Mobbs, V. P. June 22, 1927. Lasts.-A two-part hinged last having a hinge plate 6 pivoted in the fore part 4 and rigidly fixed on the heel part is provided with a blade spring 1 or equivalent secured to the fore part and engaging a pin 5 or lateral projection on the hinge plate to hold the last extended. Rollers may be provided on the pin, which may extend on both sides of the hinge plate and co-operate with two separate spring blades.
Patent GB-752407-A (GB)
Title: Preparation of germanium tetrachloride
IPC: H01L21/205
Filed: 1954-06-04
Abstract: Germanium tetrachloride is produced by reacting solids consisting principally of germanium dioxide in dry condition with hydrogen chloride gas at 300 DEG -700 DEG C.  The germanium dioxide is preferably freshly precipitated.  The hydrogen chloride gas may be passed through sulphuric acid solution followed by a calcium chloride tower to ensure complete freedom from moisture.
Patent GB-1485198-A (GB)
Title: Internally-meshing helical screw pump
IPC: F04C2/107
Filed: 1975-04-22
Abstract: 1485198 Screw pumps E LARSSON 22 April 1975 [22 April 1974] 16652/75 Heading F1F The rotor 1 of an internally-meshing screw pump has a configuration which is substantially identical to that obtained by winding a wire or bar of circular cross-section into a cylindrical helix, the outer diameter of the rotor being twice as large as the diameter of the wire or bar. The pitch of the stator threads are twice that of the rotor. The rotor may be formed by winding identical wires or bars 1, 2 around each other, each then becoming a potential rotor. Possible ways of correcting a drive shaft to the rotor are discussed, Figs. 3 and 5, (not shown) and a method of forming the stator is also described Fig. 7, (not shown).
Patent GB-927895-A (GB)
Title: Improvements in heat sensitive copying materials
IPC: C07C37/07
Filed: 1959-05-15
Abstract: 2-n-Hexadecyl-5-methylquinone is prepared by adding the corresponding hydroquinone to an oxidizing mixture of glacial acetic acid, dilute sulphuric acid and sodium chlorate together with vanadium pentoxide as catalyst, the temperature being held at 80 DEG C. and the hydroquinone being added in portions with rapid stirring and stirred for 1 hour without applying heat, followed by cooling, drying and recrystallization.  2-n-Octadecylquinone is prepared from the corresponding hydroquinone by dissolving it in acetone containing 5% by volume of water held cooled to 10 DEG C. and then adding dropwise in succession concentrated sulphuric acid and sodium dichromate, followed by stirring and crystallization. 2-Allyl-5-tert.-butylhydroquinone is prepared by reflux heating under an inert atmosphere of a mixture of tert.-butylhydroquinone, allyl chloride methanol, water and zinc dust, adding dropwise caustic soda solution and continuing refluxing for 3 hours, followed by cooling and extraction with benzene, extraction with aqueous sodium hydroxide to remove unreacted tert.-butylhydroquinone, distillation of the benzene solution, refluxing with kerosene, extraction with dilute acetic acid, and finally recrystallization successively from a hexane-benzene mixture and then aqueous acetic acid. 2-Chloro-5-tert.-butylhydroquinone is produced by adding with stirring tert.-butylhydroquinone to chloroform, heating to 48 DEG C. and very slowly adding sulphuryl chloride at this temperature, followed by the addition of zinc dust and cooling to 10 DEG C.; filtering off the solids, extracting the filtrate at 60 DEG C. with aqueous sodium hydroxide, cooling the extract to 30 DEG C. and treating with sodium hydrosulphite, acidifying with concentrated hydrochloric acid, filtering and washing the filtrate with cold water and finally drying.  1:2:4:5-Tetrahydroxybenzene is formed by hydrogenation of 2:5-dihydroxy-1:4-benzoquinone in water in the presence of a palladium-on-alumina catalyst in an autoclave at an initial pressure of 800 lbs./sq. in. and a temperature of 27 DEG -47 DEG C., heating the contents to 72 DEG C. when the pressure has fallen by 160 lbs./sq. in. and discharging the contents at 70 DEG -80 DEG C. into an aqueous solution of sodium hydrosulphite containing decolourising carbon, filtering through diatomaceous earth and cooling the filtrate to 10 DEG C. to effect crystallisation, washing the crystals and finally vacuum drying.  Specifications 752,146 and 752,147 are referred to.
Patent GB-383574-A (GB)
Title: Improvements in and relating to reinforcements for elastic horse shoes
IPC: A01L5/00
Filed: 1932-06-13
Abstract: 383,574. Horseshoes. IMPERATOR HESTESKO AKTIESELSKAP, T÷nsberg, Norway. June 13, 1932, No. 16693. Convention date, June 13, 1931. [Class 67.] A metal reinforcement of brass or iron for a horseshoe of elastic material comprises a main part 1 with spaced projections 3 on the side towards the hoof, the projections being preferably offset towards the outside as shown. Downwardly extending fingers 7 may be provided, and the rear ends 6 of the reinforcement may be bent downwardly. The nail-holes may be located in the projections 3.