baber/WOPTO huggingface dataset:
Patent GB-1320487-A (GB)
Title: Electrographic apparatus and method
IPC: G03G15/08
Filed: 1971-04-19
Abstract: 1320487 Cascade developing apparatus INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [31 March 1970] 23043/71 Heading G2H Developer is applied to an upwardly moving electrostatic image bearing member 11 in such a way that at least some of the developer accumulates in a zone 24 above the region of application before cascading down the member. The image is therefore partially developed by the cascading developer and further developed by contact with the accumulated developer. As shown, the developer is guided upwards by a curved deflector 23, which may be electrically biased to remove excess carrier particles from zone 24. In Fig. 4 (not shown) a cylinder (29) rotating about magnets (31) removes excess carrier.
Patent GB-376980-A (GB)
Title: A clutch spring remover
IPC: B25B27/30
Filed: 1931-08-15
Abstract: 376,980. Clutch spring compressers and cotter extractors. TILL, C. R., 6, Pocklington Terrace, Hull Road, York. Aug. 15, 1931, No. 23061.. [Classes 61 (ii) and 61 (iii).] Prizing-tools.-A clutch spring compresser and remover comprises a tubular member 1 in the end of which is rotatably mounted a head 3 by means of screws 5 engaging a peripheral groove in the stem 2, the head 3 being slotted to receive a lever 9 pivoted at 6. The forward. end of the member 1 is adapted to engage the retaining cup 21 of the spring 22 of the clutch driving pin 20 by the provision of diametral slots 11, 11a to clear the ends of the clutch retaining pin 19. An ejector 14 is pivoted at 12 in an extension of the slot 11a and is held normally in the position shown by a spring 17 with the projection 15 engaging an incline 16. In use the lever end 7 is anchored against the clutch housing &c. 23 and upon forward movement of the lever the tube 1 presses back the cup 21, so exposing the retaining pin 19 ; with the end 13 of the ejector 14 held immovable by the clutch driving pin 20 the sliding of tube 1 on pin 20 causes the tail of the ejector to engage retaining pin 19 and force it out.
Patent GB-1391876-A (GB)
Title: Cholesterol oxidase
IPC: C12R1/645
Filed: 1973-05-15
Abstract: 1391876 Cholesterol emulsion BOEHRINGER MANNHEIM GmbH 15 May 1973 [17 May 1972 (2) 15 Feb 1973] 23081/73 Heading B1V [Also in Division C3]  The specification discloses the use, in the microbiological production of the enzyme cholesterol oxidase, of an aqueous emulsion produced by wet grinding an aqueous suspension of cholesterol, followed by heat sterilization. A small amount of yeast extract e.g. between 0.02 and 1% by weight, is included as an emulsifying agent.
Patent GB-443955-A (GB)
Title: Improvements in and relating to diazo-type printing processes
IPC: G03C1/61
Filed: 1934-08-10
Abstract: 443,955. Photographic diazotype processes. HALDEN & CO., Ltd., J., and HOLDEN, J., Rowsley Works, Reddish, near Stockport. Aug. 10, 1934, No. 23100. [Class 98 (ii)] The papers are coated with a light-sensitive layer of a diazo-compound capable of quick coupling, with or without the addition of a coupling agent or azo dye component, and the coated surface, after drying, is dusted with a finely powdered agent which is a metal oxide or salt, insoluble or slightly soluble in water, of a mildly alkaline or neutral nature, and capable of reaction with the acids normally present in the layer for stabilizing purposes or with the acid radicle of the diazo-compound. Suitable agents are magnesium oxide or carbonate, calcium carbonate and zinc carbonate. As coupling components, naphthol sulphonic and disulphonic acids, aminonaphthol sulphonic acids, polyhydroxy compounds, e.g. phloroglucin and arylides of 2.3 oxynaphthoic acid, and pyrazolone derivatives may be used. The support may be treated before sensitizing with a waterproofing agent, e.g. in the manner described in Specifications 418,976 and 425,030. Oil proofing as described in Specification 424,976 may also be used. Insecticides and antiseptics, e.g. chloronaphthalene derivatives, dyes, or dye forming bodies, e.g. leuco indigoid esters, or translucing agents as described in Specification 425,215, [Group VIII], may be included. In examples : (1) paper coated with the diazo chloride of 4-( 1<1>- methyl)-phenoxy acetamino-2: 5 dimethoxy-1-aminobenzene and phosphoric acid is dried and powdered with a mixture of 1 : 5-naphthol sulphonic acid, magnesium oxide, and French chalk. After exposure, the paper is developed by applying a moistened roller or cloth ; (2) paper sensitized as in example 1 is powdered with a mixture of p-phenetedide of 2.3-oxynaphthoic acid, magnesium oxide,. and French chalk; (3) Paper as in example 1 is waterproofed before powdering, with paraffin wax, and powdered with a mixture of magnesium oxide, French chalk, phloroglucinol and sulphated lauryl alcohol ; and (4) paper is coated with a solution of diazo sulphate of p-amino-diphenylamine, tartaric acid, naphthalene-1 : 3 : 6-trisulphonic acid, phloroglucinol, and dextrine. After drying, it is powdered with a mixture of magnesium oxide and French chalk.
Patent GB-713024-A (GB)
Title: Improvements in or relating to variable magnification optical systems
IPC: G02B15/14
Filed: 1951-10-05
Abstract: 713,024. Optical objectives. WATSON & SONS, Ltd., W., and HOPKINS, H. H. Jan. 5, 1953 [Oct. 5, 1951], No. 23277/51. Class 97(1) In a variable magnification optical system comprising two fixed components enclosing two components of opposite sign thereto movable axially from a mean position in which their first magnification is - 1 to one or more far positions so as to vary the magnification of the image, produced at a fixed distance from the fixed components, of an object also at a fixed distance therefrom, the lenses are chosen so that the respective differences between the values of the spherical aberration, coma, astigmatism and distortion produced firstly by the movable lenses in their mean position and the corresponding values of these aberrations in their far position or positions are equal and opposite to the respective differences between the values of the spherical aberration, coma, astigmatism and distortion produced jointly by the two fixed lenses when the movable lenses are at their mean position and their far position or positions respectively. In a modification the arrangement may be such that the front spherical aberrations of the movable lenses in their mean position is zero. The invention is described with particular reference to the system shown in which the fixed lenses 21, 24 are positive and the movable lenses 22, 23 negative, the system being symmetrical as regards curvature of the surfaces and refractive indices about a point mid-way between the fixed lenses. A numerical example of one such system, which is a focal one is given. Focusing may be effected by movement of one of the lenses as described in 639,611, the movable lenses may be adjusted by the mechanism described in Specification 685,945 while the stop may be arranged to move with the movable limb which is nearer the final image position. Specifications 639,610, 639,612 and 646,409 also are referred to.
Patent GB-355478-A (GB)
Title: Improvements in and relating to methods of and apparatus for gumming the closure flaps of envelopes and the like
IPC: B31B19/00
Filed: 1930-08-01
Abstract: 355,478. Making envelopes &c. WINKLER, A. and DœNNEBIER, M., Neuwied, Germany. Aug. 1, 1930, No. 23284. [Class 94 (ii).] Shaped gumming is applied to the closure flaps of envelopes &c. by first applying the gum by a spreading process while the blanks are arranged in stepped relationship with only the closure flaps exposed and then making a second application by a stamp or type to produce the desired shape. Pairs of rollers 3, 4, 5 draw blanks from a pile 2 and place them in overlapping relationship with only the closure flaps exposed prior to pairs of cooperating bands 8, 8<1>, which pass around drums 6 and over a curved table 23, feeding them past a gum-spreading device 14 adapted to apply the gum to the parts shown in Fig. 2 by vertical hatching. The bands 8, 8<1> pass the gummed blanks on to a pair of bands 15<1> moving at a higher speed and as each blank is released by the bands 8, 8<1>, a rotating roller 16 is lowered on to it to separate the blank from the remaining blanks, the arrangement preventing any irregularities in the spacing of the blanks from being magnified by their acceleration. A pair of bands 15 co-operates with the bands 15<1> to feed the blanks past a rotary gummer 27 comprising units 24<11>, 25<11>, 26<11>, Fig. 5, adjustable along and around a shaft 27<1> and adapted to apply gum to the portions 24, 25, 26 of the closure flap to produce the desired shape. The shaft 27<1> may be angularly adjusted in relation to the path of the blanks. The type units 24<11>, 25<11>, 26<11> operate against an adjustable support 30 comprising arms hinged at the middle and adjustable by a screw to allow for the different thickness of the blanks passing the roller. Finally, the blanks are closed up, as far as the gummed portions will permit, and dried between bands 38.
Patent GB-1494583-A (GB)
Title: Fuel conservation means for internal combustion engines
IPC: F02M27/04
Filed: 1975-05-28
Abstract: 1494583 Treating IC engine charges REXAR INDUSTRIES Inc 28 May 1975 [24 June 1974] 23328/75 Heading F1B A device for homogenizing an air/fuel mixture stream and vaporizing the fuel in the stream comprises a propellor 42 which is driven by the mixture stream and is mounted on shaft 44 which also carries a spring steel blade 46; and an electrically heated wire grid 28. The blade 46 is preferably 0À005 inches thick and is formed with a pattern of apertures each 0À0135 inches diameter. The blade vibrates at sonic frequency and impresses vibrations on the mixture stream. Grid 28 consists of a pair of similar discs 50 each consisting of a ring 52 and a wire 54 bent to form a number of parallel portions and having tails 56, 58 projecting from opposite faces of the ring, for connection to an electrical supply. Two such rings are used, with the wires of one ring perpendicular to the wires of the other ring. In a four-barrel carburetter, four propellor/ spring blade/grid assemblies are used, with the grids connected in series. Preferably two openings (80) Fig. 5 (not shown) are provided which connect the barrels in two pairs.
Patent GB-165352-A (GB)
Title: Improvements in dolls
IPC: A63H3/10
Filed: 1920-08-09
Abstract: 165,352. Dietrich, J. G. Aug. 9, 1920. Dolls. - Relates to a means of attaching articles to a doll of which the body is formed of two flat plates or sheets spaced apart, the legs being pivoted to the plate. As shown in Fig. 1, the article, such as a bayonet scabbard 4, may be hooked into a hole 2 formed in one of the plates 1, the hole being so positioned that the scabbard may be moved forwards or backwards without striking the leg 6 of the doll. In another construction, shown in section in Fig. 3, the article, in this case a belt, consists of two strips 7 of metal having their ends 8, 9 bent to grip the edges of the plates 1. Other articles, such as a scabbard or revolver, can then be hooked on to the strips 7 or can be inserted between the strips and thebody of the doll.
Patent GB-480749-A (GB)
Title: Manufacture of vat-dyestuffs of the anthraquinone series
IPC: C09B6/00
Filed: 1936-08-26
Abstract: Dyes are made by reacting an aminoanthraquinone compound with an o -trifluoromethylbenzene-carboxylic acid halide.  The term "anthraquinone compound" includes bodies in which the anthraquinone nucleus carries a fused-on ring, as in anthrapyrimidines, anthraquinone - benzacridones, and anthraquinonethioxanthones.  The reaction may be effected by heating in a solvent such as nitrobenzene, trichlorbenzene, or a -chlornaphthalene in presence of a catalyst such as pyridine or piperidine.  If the anthraquinone contains several amino groups, one or all may be acylated, and any amino group not reacted may be acylated with a different aroyl halide.  In examples, p- and m-o -trifluoromethylbenzoyl fluoride is reacted with (1) 1.5-, 1.4-, or 1.8-diaminoanthraquinone; (2) 1 - amino - 5 - benzoylaminoanthraquinone; (3) 4-amino-2 : 1-anthraquinone-61-chlorbenzacridone; (4) 4.8-diaminoanthrarufin. Also in examples, (5) p - o  - trifluoromethylbenzoyl fluoride is reacted with 4-amino-1.9-anthrapyrimidine, and m-o -trifluormethylbenzoyl fluoride is reacted with (6) 4-amino-2.1-anthraquinone-benzacridone, (7) 4-amino-2.1-anthraquinone - 31.51 - dichlorbenzacridone; (8) 4-aminothioxanthone; (9) 3.5-dimethylbenzoyl fluoride is reacted with 4-amino-2.1-anthraquinone - 31.51 - dichlorbenzacridone; and (10) o-o -trifluoromethylbenzoyl chloride is reacted with 1.5-diaminoanthraquinone.  4 - Amino - 2.1 - anthraquinone - 61 - chlorbenzacridone is made by condensing 1-bromo-4-aminoanthraquinone - 2 - sulphonic acid with 6-chloranthranilic acid.  Specifications 466,007 and 480,105 are referred to.
Patent GB-1012528-A (GB)
Title: Improvements in or relating to the seaming of ends of can bodies
Inventor: FRANEK JOSEF
IPC: B21D51/32
Filed: 1963-06-12
Abstract: 1,012,528. Assembling can heads and bodies. METAL BOX CO. Ltd. March 5, 1964 [June 12, 1963], No. 23454/63. Heading B3J. In seaming a can-end 1, Fig. 1, having a curl 2 to a can body 3 having a flange 4, in two stages during which the end 1 is engaged by a chuck 6, Fig. 5, and by first and second seaming elements in succession, the first seaming stage consists in engaging the curl 2 by the first seaming element 7 at at least two positions, one of which is the free edge 5 of the curl 2 to provide support for the edge 5 during the first part of the first seaming stage and, by effecting relative movement between the chuck and element 7, maintaining engagement of the curl by the element 7 as the edge 5 of the curl is gradually disengaged from the element and turned thereby towards the flange 4. In Fig. 6, the first and second seaming elements are rolls 7, 13 on arms mounted on shafts 15, 16 which are turned by cams 21, 22 engaging followers 19, 20 to move the rolls against the can end. The followers are pressed against the cams by springs, Fig. 7 (not shown), and an ejector 12 removes the cans after the seaming operations. The chuck is driven by gears 23 and the cams 21, 22 by gears 24, 25. The profile of the first seaming roll 7 is as shown in Fig. 5, so that as it is swung against the curl 2, the curl cams the roll upwardly from the lower to the upper of the two broken-line positions depicted, causing the end 5 to be supported before the seaming operation commences. Cam surfaces 10, 11 on the roll 7 and chuck 6 move the roll downwardly during the seaming operation. In the second stage, the seam is closed, Fig. 3 (not shown), from the full-line position depicted in Fig. 5. As applied in Fig. 10 to a machine of the type described in Specification 765,753, which comprises two first seaming dies 7, one fixed and one rotatable, between which the can-end is rotated and moved in a circular path, the cam track 32 controlling engaging and disengaging movements of the chuck 6 is modified to give the chuck an additional downward movement. This causes the ledge 9 (Fig. 5) of the die profile to support the edge 5. During the seaming operation, the chuck is gradually raised. In single-die machines in which the chuck does not lift, the die-rail may be arranged to lift. Can-ends may be seamed on rectangular cams having rounded corners.
Patent GB-1189244-A (GB)
Title: Telephone Line Circuit
IPC: H04Q3/00
Filed: 1968-05-17
Abstract: 1,189,244. Automatic exchange equipment. INTERNATIONAL STANDARD ELECTRIC CORP. 17 May, 1968 [19 May, 1967], No. 23497/68. Heading H4K. A line circuit has line and cut off relays, the line relay operating to the off-hook loop and staying up with the cut off relay when the circuit is connected forward, permanent loop condition being timed out to release the line relay and leave the cut-off relay guarding the loop. Operation of the cut-off relay in the permanent loop condition energizes an alarm relay common to a group of line circuits. The line circuit may have a balanced configuration, both line and cut-off relays having three windings, Fig. 1 (not shown), or for longer lines the configuration may be unbalanced, the line relay having three windings and the cut-off relay having two windings.
Patent GB-380231-A (GB)
Title: Improvements in apparatus for grinding, surfacing and polishing the surfaces of lenses and other solid bodies
IPC: B24B13/04
Filed: 1931-08-21
Abstract: 380,231. Grinding &c. lenses &c. PASS, A., Brookside, Albany Road, Fleet, Hampshire. Aug. 21, 1931, No. 23535. [Class 60.] Apparatus for grinding, polishing and surfacing spherical and other lenses &c. consists of a base 1 on one end of which is detachably mounted a plate 2 having therein a longitudinal guide groove 3 and a transverse groove 4, in which are mounted slide blocks 5, 6 carrying pivot pins 8, 9 engaging an arm 7 ; the pin 9 engages a block 10 adjustable in a slot 11 in the arm. On the arm is mounted a carriage 13 adjustable along the arm by a screw 14, and on the carriage is mounted a table 16, adjustable transversely of the arm by a screw and carrying a grinding &c. wheel 21. The base 1 carries a longitudinally adjustable carriage 31 on which is mounted a lens carrier 35 driven by a pulley 36, and on the base also is a longitudinally adjustable carriage 23 having thereon a table 26 transversely movable by a screw 27 and hand-wheel 28, the table carrying a stud 29 engaging a longitudinal slot in the arm 7. The grinding-wheel is moved across the lens by rotation of the screw 27, the curve produced on the lens depending on the disposition of the pivots 8, 9 and the shape of the guide 4 ; convex and concave surfaces are produced according to the position of the lens relatively to that of the grinding-wheel. According to the Provisional Specification the grinding wheel may be on the carriage 31 and the lens on the carriage 13.
Patent GB-335677-A (GB)
Title: Improved spring balancing device for sliding sash windows and the like
IPC: E05F1/16
Filed: 1929-07-31
Abstract: 335,677. Lean, H. J. July 31, 1929. Balancing-apparatus for adjustable suspension. -A balancing device for a vehicle window or like sliding article of the kind comprising spring-controlled lazy-tongs is characterized by curved extensions 11 of the bottom members of the lever system to which the springs are connected by rollers &c. and shackles so that the leverage increases as the tension in the springs decreases. The extensions 11 may have recesses formed therein to give positions of equilibrium, or the curves may be made up of a number of linear parts or may be formed as racks engaged by pinions attached to the springs. The curve 13 may be so shaped that the moment exerted by the spring may be greater than that due to the weight of the sash when closed and less when opened. The spring tension may be adjustable by means of screwed hooks 24.
Patent GB-1141610-A (GB)
Title: Analgesic apparatus
IPC: A61M16/10
Filed: 1966-05-26
Abstract: 1,141,610. Analgesic apparatus. INGENIORSFIRMAN HOLMBERG & ANDERSSON A.B. 26 May, 1966 [26 May, 1965], No. 23661/66. Heading A5T. An apparatus for analgesic anaesthetisation by means of oxygen and an anaesthetising gas, e.g. nitrous oxide, is illustrated with reference to Fig. 4 and comprises an adjustable proportional valve 34 to control the ratio of oxygen to anaesthetic gas, and a feed control valve 16 downstream of the proportional valve for controlling the gas supply to a variable volume container 28 in response to the patient's consumption of gas by responding to the degree of filling of the gas container and in which the feed control valve also reduces the pressure of the gas mixture down to atmospheric pressure. The apparatus preferably comprises a pressure equalizing control valve 4, and an air valve 53 which operates on oxygen failure. Oxygen flow is via 2, 14', 6, 40 and 43; and anaesthetic gas is via 5, 14, 15, 41 and 44. A modified apparatus for connection to a hospital mains supply of oxygen and nitrous oxide is described with reference to Fig. 5 (not shown).
Patent GB-985696-A (GB)
Title: Improvements in and relating to conveyor means for electric furnaces
Inventor: INGALL JAMES BIRKETT
IPC: F27D19/00
Filed: 1960-07-06
Abstract: 985,696. Conveying billets through metal heating; furnaces. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 29, 1961 [July 6, 1960], No. 23647/60. Heading F4B. [Also in Division B8] A controlled drive for moving objects through electric furnaces comprises a motor, a stepping device, a step-repeat device, and an integrating electricity meter, said stepping device being adapted to cause with each step a predetermined increment of motor movement and object advance, said meter being connected to measure a settable quantity of electric energy supply to the furnace and said steprepeat device being controlled by said meter to initiate a step-repeat when the supply of said quantity of electric energy to the furnace is completed. Billets B1-B7 are passed through an induction furnace HM by an hydraulic motor comprising piston PI1 in cylinder A operating a pusher rod N by hydraulic fluid supplied from a metering cylinder E. The step-repeat device comprises reversing valves V1 and V2 operated respectively by solenoids GH and CD and a by-pass valve V3 actuated by coil P. Sequential operation of the valves is controlled by a cam on the integrating meter, Fig. 2 (not shown), in the electric control box CB, which meter equates heating current to the quantities of hydraulic media supplied by cylinder E to cause stepwise advancing of the billets. During forward movement of the billets, a billet in position B6 contacts catch T depressing switch L which holds valve V3 in the required position. Release of catch T and switch L reverses valve V3, causing piston PI1 and pusher rod N to move to the left until the latter contacts limit switch M whereupon movement is reversed. During this time a new billet has been inserted between pusher rod N and billet B7. The voltage coil of the meter is supplied from power lines through a potential transformer having a secondary winding associated with a potentiometer set to a ratio allowing for heat losses.