baber/WOPTO huggingface dataset:
Patent GB-845399-A (GB)
Title: Improvements relating to food slicing machines
IPC: B26D7/01
Filed: 1958-12-19
Abstract: 845,399. Slicing machines. TALGE, H. J. Dec. 19, 1958 [Dec. 30, 1957], No. 41095/58. Class 28(2). An arcuate hinged hand pressure plate 26, Fig. 3, bearing on a food block on the reciprocated food carriage 21 of a slicing machine is provided with a guard flange 26b to prevent the fingers contacting the knife when pressure is to be applied to the food block especially for the last few slices to be cut off the remaining end of the block. An extension 25b has a flange 25c which acts as a thumb guard. The pressure plate 26 is provided with teeth 26c to grip the food. The pressure plate 26 is carried on the hinge of a slide 25 having an inverted U, Fig. 5, to be adjusted along the top edge of the flange 22 of the carriage 21. The slice thickness gauge plate 16 is adjusted by a screw 19 turned by a handle 20.
Patent GB-1528625-A (GB)
Title: Current supply amplifier eg for cathode-ray tube deflection coils
IPC: G09G1/04
Filed: 1975-10-08
Abstract: 1528625 Transistor amplifying and deflection current generating circuits UNITED TECHNOLOGIES CORP. 8 Oct 1975 [9 Oct 1974] 41222/75 Heading H3T In a system for supplying current to a load 14 (e.g. the deflection coils of a cathode-ray tube), part of the current is supplied by means of a linear amplifier 12 in response to desired current signals Vin and includes switching means responsive to the desired current signals Vin of both polarities in excess of a given magnitude for connecting a constant current source in a corresponding polarity to said current load 14 and, responsive to absence of input signals in excess of said given magnitude for disconnecting said current source from said current load 14. As described, a sawtooth voltage swinging from a negative value to a positive value is applied at Vin to a linear amplifier 12 capable of producing an output current of <SP>1</SP>/ 3  of the maximum current swing required in deflection coils Ly. The constant current circuit includes two voltage supplies Vcc and switching transistors SW1-SW1 feeding an inductor Lcc. The current is controlled to <SP>2</SP>/ 3  of the maximum current required in the deflection coils Ly by chopping at SW1-SW1, free-wheeling circuits 46, Q4 and 46, Q2 being provided. The control is achieved by modulating clock signals 40 in response to the difference between the current in the appropriate freewheeling circuit and reference voltages. When the input voltage is more negative than a predetermined level, Schmitt trigger 62 becomes operative, turning on transistor Q6 so that an upwardly directed current of <SP>2</SP>/ 3  of the maximum current required in Ly is added to the output of amplifier 12. When Vin is below the predetermined value, Schmitt 60 becomes operative and both transistors Q5 and Q6 are turned off so that the current in Ly is produced only by the amplifier 12. Schmitt 61 becomes operative when Vin is more positive than the predetermined value so that transistor Q5 is turned on giving a downwardly directed current of <SP>2</SP>/ 3  of the maximum required value in deflection coils Ly. The circuit is particularly intended to save power where deflection is not normally repetitive as in TV, but comprises stroke-writing and is said to provide an improved pulse-width modulated source of current.
Patent GB-983967-A (GB)
Title: Device for treating filamentary materials
IPC: D02G1/16
Filed: 1962-10-31
Abstract: 983, 967. Treating fibres and finishing yarns. E. I. DU PONT DE NEMOURS & CO. Oct. 31, 1962 [Nov. 1, 1961], No. 41239/62. Heading D1F. A process for individually convoluting the filaments of a yarn or other filamentary material comprises passing the yarn through a bulking chamber into which a fluid jet of at least half sonic velocity is obliquely injected. The yarn enters a front plate 21 of the jet through a passage 24 which leads into the bulking chamber 25 of larger, and preferably rectangular, cross-section. The fluid enters the chamber 25 through a fluid inlet from ducts 16, 23 in a body member 20, with the inlet preferably of smaller cross-section than the duct 16. Angle #, as shown in Fig. 2, ranges between 0 degrees and 45 degrees and is greater than 10 degrees when crunodal loops are desired and less than 10 degrees when crimping yarn with steam or other plasticizing fluid and when crunodal loops are not desired. Angle γ shown in Fig. 3 is between 20 degrees and 45 degrees and preferably 30 degrees. The outlet of changer 25 is tapered with an angle α of between 2-7 degrees when plasticizing fluids are used and between 7 degrees and 45 degrees, dependent on the yarn material, for non-plasticizing fluids. Fig. 2 may be modified, Fig. 4 (not shown) by having the parts 24, 25 vertical and the duct 23 inclined at an angle # to them. The yarn may be twisted or untwisted, it may be of natural fibres or of cellulose esters, polyesters, polyethylene, polyvinyls or polyacrylics, and may be overfed by 120% or more.
Patent GB-1399927-A (GB)
Title: Detergent compositions
IPC: C11D3/22
Filed: 1972-09-07
Abstract: 1399927 Biodegradable detergent compositions DAI-ICHI KOGYO SEIYAKU CO Ltd 7 Sept 1972 [11 Sept 1971 13 Sept 1971 6 Oct 1971] 41638/72 Heading C5D  A biodegradable detergent composition comprises (A) a soap and (B) at least one sucrose ester of a C6-C22 fatty acid. Preferably there is also present a mono- or di-saccharide, e.g. sucrose; or sorbitol. The sucrose esters contain 70% by wt. or more of mono- and di-esters, the balance being tri- or higher esters. The fatty acids may be lauric, myristic, palmitic stearic, oleic or linoleic acids or mixtures thereof such as tallow fatty acids. The degree of substitution of the sucrose ester is 1À5 to 3À5 (representing the number of esterified fatty acid molecules per sucrose molecule). The composition may consist of 75 to 97% by wt. of (A) and 25 to 3% by wt. of (B). The soaps are sodium or potassium salts of C8-C22 fatty acids especially fatty acids from 50% tallow with palm oil, palm kernel oil, coconut oil and/or soya bean oil. Up to 50% by wt. of saccharide may be present. The compositions may be used as a basis for toilet soaps, light duty or heavy detergents, and liquid detergents. Suitable formulations also include inorganic and organic builders, alkanolamide and conventional additives.
Patent GB-1446998-A (GB)
Title: Apparatus for mixing at least two fluent media
IPC: B01F5/06
Filed: 1974-09-30
Abstract: 1446998 Mixing in conduits FR SAUTER AG FABRIK ELEKTRISCHER APPARATE 30 Sept 1974 [25 Feb 1974] 42386/74 Heading B1C A static mixer for fluent media (liquids and/ or gases or granular solids) comprises a pipe having an inlet 1 for one of the media, an inflow junction 3 for another medium, and a disc 5 having at least one aperture therein positioned downstream of the junction 3 at a distance at least four times and at most six times the minimum cross-sectional diameter of the pipe, the disc having a thickness at least one-tenth of such dimension. There may be additional discs as at 8, and a flow-straightener 10. The pipe may be of circular, elliptical or polygonal cross-section and the aperture(s) in the disc(s) may (see Figs. 2-15, not shown) be circular, a major or minor segment of a circle, or substantially oval, polygonal or elliptical; the apertures may be tapered on the upstream or both side(s); the periphery of the aperture(s) may have ribs or grooves which may be radial or inclined to the radius, straight, tapered or curved. The media may be supplied by pumps 2, 4.
Patent GB-1021354-A (GB)
Title: Hydraulic turbo coupling without core guide ring and preferably with constant fluid filling
Inventor: MEYER WILLIBALD
IPC: F16D33/02
Filed: 1964-10-16
Abstract: 1,021,354. Hydrodynamic couplings. C. SCHULER-VOITH, M. VOITH, and H. RUPF. Oct. 16, 1964, No. 42421/64. Heading F2C. An hydrodynamic coupling has a runner 4 having the inner surface 5 of its outer periphery either cylindrical or concave and forming a sharp, well-defined boundary line with a substantially radial wall portion 8. One or more axially extending projections 9 are provided on the wall 8; as shown an annular projection 9 is provided, but the projection need be provided between only certain of the runner blades, or may be provided at different radii between different blades or can be produced by forming a rough inner surface by sand blasting or by adhesively attaching netting thereto. The impeller 2 may be similarly formed if the application is such that the impeller and runner may have to exchange functions. In the modification shown in Fig. 6 an annular projections 21 is provided and in addition axially extending projections 22 are provided on some or all of the runner blades 23. The peripheral extent of the projections 22 is small, and they may extend over all or part of the blade depth.
Patent GB-1399701-A (GB)
Title: Light scanning system
Inventor: FLEISCHER J M
IPC: G01R13/38
Filed: 1972-09-13
Abstract: 1399701 Optical scanning INTERNATIONAL BUSINESS MACHINES CORP 13 Sept 1972 [18 Oct 1971] 42452/72 Heading G2J [Also in Division H4] In an optical scanning system wherein a collimated light beam from a source 1 is directed towards a rotating mirror drum 6 and thereafter focused by a spherical lens 8 to form a linearly scanning light spot on a drum 9, deviations of the mirror drum faces from strict parallelism with the rotation axis give a corresponding displacement of the scanned line. Compensatory cylindrical or ellipsoidal lens 5,7 are therefore included for focusing the collimated beam on the drum faces as a line or elongate image extending orthogonally to the rotation axis, and for re-collimating the beam, respectively. The lens 5,7 and 8 may be replaced by equivalent reflecting elements. The system shown in Fig. 1 is a recording system wherein a laser beam is modulated at 3, e.g. acousto- or electro-optically, under the control of a computer output, and passed via a beam expander 4 to fall on the electro-photographic surface of a rotating drum 9. The recorded image which may be in the form of a dot matrix is developed with toner and transferred to hard copy paper. It may be advantageous to chose lens 5 and 7 to provide an elliptical scanning spot, to give abutment of successive scan lens while maintaining resolution along the line. A photosensor 10 detects the commencement of each scan. The drum 9 may be replaced by a flat ground glass screen for viewing.
Patent GB-1005861-A (GB)
Title: Improvements in or relating to mechanisms associated with coke ovens
IPC: C10B25/14
Filed: 1962-11-09
Abstract: The operating mechanism for the doors of a coke-oven battery has a movable plate 45 with slots 46 . . . 48 for receiving manually-operated levers 41 . . . 43 responsible respectively through an hydraulic system for turning a ram through 90 degrees about a vertical axis, advancing and <PICT:1005861/C4-C5/1> <PICT:1005861/C4-C5/2> retracting the ram, and lowering and raising hooks on the ram for respectively disengaging and engaging hooks on the door.  The slots 46 . . . 48 have locking recesses 54 . . . 57 for the levers and the slots 46, 47 have cam surr faces 50 . . . 53 operative to cause sideways movement of the plate 45 on movement of the levers 41 . . . 43.  The lever 42 is spring-centred to position "2" and each lever has three positions, position "1" corresponding to swinging the ram to face the door (for lever 41), advancing the ram (for lever 42), and disengaging the hooks (for lever 43), position "3" corresponding to the opposite movements in each case.  Operation is as follows: levers 41 and 42 being in position "2," with the door disengaged and the ram retracted, and lever 43 in position "1," (see Figs. 5 to 10, not shown); Lever 41 is moved to "1," swinging the ram to face a door, and moving the plate 45 one step to the right to free lever 42 from recess 55; lever 42 moved to "1" to free lever 43 from recess 56, to advance the ram and lock lever 41 at 54; lever 42 returns automatically to "2," and lever 43 is moved to "3" to engage hooks (no movement of plate 45); lever 42 moved from "2" to "3" to retract the ram, lock lever 43 in recess 57 and unlock lever 41 from recess 54; lever 41 moved to "3" to swing ram through 90 degrees and lock lever 42 in recess 55.  The sequence of operations is repeated to close the door, except that the lever 43 is moved from the recess 57 to the recess 56. Specifications 557,498, 557,502 and 611,524 are referred to.
Patent GB-1486889-A (GB)
Title: Magnetic separator systems
IPC: B03C1/02
Filed: 1973-09-11
Abstract: 1486889 Magnetic separators IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd IMPERIAL COLLEGE OF SCIENCE & TECHNOLOGY and CRYOGENIC CONSULTANTS Ltd 28 Aug 1974 [11 Sept 1973 17 July 1974] 42566/73 and 31657/74 Heading B2J A magnetic separator for separating magnetically susceptible particles, such as hematite, from non-magnetic or less magnetically susceptible particles, such as quartz, comprises an inlet channel for a gas or liquid containing the mixture and leading to an arcuate channel separation zone 10 from which lead first and second outlet channels, a magnet 17 near the zone and nearer the second than the first channel outlet so that the magnetic particles are attracted into the second channel. It is said that as the flow swirls round the passage 10 particles tend to collect in the corner 16 of the rectangular passage, while those which are magnetically susceptible are drawn from the corner 16 towards the magnet 17 into the corner 18. The passage 10 may be “ to several revolutions in content. The inlet channel is tangentially or reversely carried to the separation passage 10. In a modification, the passage has a cross-section of parallelogram shape with the bottom directed downwards towards the outer edge and the magnet (26) is internal, the magnetic particles collecting in the innermost lower corner (28), Fig. 2 (not shown). The passage 10 may be open-topped and is opened to atmosphere at its outlet end where the particles from the corners 16. 18 issue as two streams. The magnetic fields may be of 0.5 to 60 kilograms with a super-conducting magnet.
Patent GB-1020458-A (GB)
Title: Oil burner control
Inventor: YOUNGER WILIIAM GERALD
IPC: F23C99/00
Filed: 1962-11-12
Abstract: 1,020,458. Igniting vapour burners. KEMP MANUFACTURING CO. Ltd. Jan. 14, 1963 [Nov. 12, 1962], No. 42576/62. Headings F4F and F4T. A vapour burner is supplied with oil in an on/off manner by a solenoid valve (not shown) controlled by a thermostat 70 responsive to the temperature of a house heated by the burner and at starting the oil is vaporized by an electrical heater 30 and is ignited by a spark gap between a fixed electrode 28 and a pivoted electrode 22. The burner is also controlled to operate at a high flame rate or at a low flame rate by a room thermostat 58 adapted to energize an electromagnet 46 having an armature 44 acting on the stem 42 of a metering valve 40 in series with the solenoid on/off valve. When the electromagnet 46 is de-energized a spring 50 swings the armature 40 to depress the valve stem 52 to the low flow position and to actuate a switch 52 to operate a fan motor 48 at low speed. If the temperature rises excessively even with the burner operating at the low rate the thermostat 70 de-energizes the solenoid on/off valve so that the burner is extinguished. When the thermostat 70 again closes power is supplied via closed contacts 80, 82 of a bimetal 120 in the vaporizer of the burner to the heater of a bimetallic element 54 which then moves to the dotted line position. In so doing it operates a microswitch 86 to transfer the power from the electromagnet 46 to a coil 100 which moves an armature 102 linked to the pivoted spark electrode 22 to move the latter into the burner combustion chamber; the armature 102 also closes a switch 110 to energize an ignition transformer 29 and the heater 30 for vaporizing the oil. The bimetal strip also moves the armature 44 of the electromagnet 46 to a position that sets the metering valve 40 between high fire and low fire rates and actuates the fan motor switch 52 to the high-speed position; but the fan motor does not operate since it is de-energized by contacts 122, 82 of the bimetal 120 in the vaporizer. When the oil is ignited the bimetal 120 opens the contacts 80, 82 to de-energize the heater of the bimetal element 54 and closes contacts 82, 122 to start the fan motor 48. The burner, Fig. 3 (not shown) comprises a combustion chamber to the base of which oil is supplied by a duct and to which air is supplied through a perforated plate forming the roof of the combustion chamber. The mouth of the combustion chamber leads to a chimney. The movable electrode is movable in and out of the mouth of the combustion chamber. The heater 30 for vaporizing the oil is mounted under the base of the combustion chamber.
Patent GB-1009168-A (GB)
Title: Detergent compositions
Inventor: CORRY ALFRED REGINALD
IPC: C11D17/00
Filed: 1963-10-29
Abstract: Opaque liquid detergent compositions contain one or more liquid synthetic detergent and an aqueous dispersion of a homopolymer or copolymer of either vinyl chloride or vinylidene chloride.  When a copolymer is used other monomers used to form the copolymer include vinyl acetate, acrylo- and methacrylo-nitriles, acrylic and methacrylic acids, esters and amides, and fumaric or maleic esters. The copolymers may also contain both vinyl and vinylidene chlorides. The detergent may be any liquid nonionic, anionic or cationic detergent or a mixture of such detergents.  These detergents include condensates of ethylene oxide with alkyl phenols (e.g. nonyl phenol), fatty alcohols, fatty acids and mono- and di-alkanolamides; alkyl benzene sulphonates, e.g. sodium xylene sulphonate and sodium and ammonium dodecylbenzene sulphonates; sulphated alkyl phenol/alkylene oxide condensates, e.g. the condensate of the ammonium sulphate of nonyl phenol with ethylene oxide; sulphated primary and secondary fatty alcohols; higher alkyl trimethyl ammonium halides; higher alkyl pyridinium halides; and alkyl dimethyl arylammonium halides. Optional ingredients of the compositions include tetrasodium pyrophosphate, pentasodium tripolyphosphate, Na, K, NH4 and alkanolamine hexametaphosphates, glycerine, ethanol, fatty acid alkylolamide condensation products, carboxymethyl cellulose, polyvinyl alcohol, and polyvinylpyrrolidone.
Patent GB-1122830-A (GB)
Title: Improvements relating to character transmission and reproduction systems
Inventor: ENGLISH BRIAN BOX
IPC: H04L21/00
Filed: 1965-10-09
Abstract: 1,122,830. Selective printing. FERRANTI Ltd. 21 Oct., 1966 [9 Oct., 1965], No. 42927/65. Heading B6F. [Also in Division G4] A metallized tape 101 moving in the direction of arrow 104 is recorded on by selectively energizing a column of five styli SR so as to record each character as a 5 x 5 matrix of dots burnt on the tape, and, at the end of each message, a solenoid 157 is energized to alter the angle the styli make with the tape 101 whereby any accumulated debris is wiped from the styli. Electrostatic and photo-sensitive recording is also mentioned.
Patent GB-1064153-A (GB)
Title: Improvements in or relating to the fabrication of reinforced plastics structures
Inventor: BAILEY DENNIS FREDERICK
Filed: 1962-11-14
Abstract: 1,064,153. Laminates and laminating; seaming non-metallic sheet materials; moulding. BXL PLASTICS MATERIALS GROUP Ltd. Nov. 12, 1963 [Nov. 14, 1962], No. 43001/62. Headings B5A, B5K and B5N. [Also in Division E1  A method of making flanged reinforced plastics panels which may be united by adhesion or welding to form structures, e.g. tanks, comprises lining a mould 1, 4 with flanges 3 and laying up a reinforced, hardenable plastics composition 2 over the exposed portions of the flanges and the mould. The reinforced plastics composition may comprise an unsaturated polyester resin with a copolymerisable, hardenable, unsaturated monomer or mixture of such monomers, e.g. methyl methacrylate and styrene. Alternatively the said composition may comprise a polyepoxide containing more than one epoxide group per average molecule and hardenable by the use of, e.g. polyamines or acid. anhydrides. The polyepoxide may be one containing terminal epoxide groups, e.g. the diglycidyl ether of diphenylol propane, or one with internal epoxide groups, e.g. 3,4-epoxy-6- methyl cyclohexyl-methyl-3,4-epoxy-6-methylcyclohexane carboxylate. The flanges may comprise a homopolymer of P.V.C., optionally containing a copolymer of P.V.C. with a minor proportion of an oxygen-containing ethylenically-unsaturated monomer, e.g. vinyl acetate. Alternatively the flanges may comprise a laminate of a layer of P.V.C. (adjacent the mould surface) and a layer of the said copolymer. Before laying layer 2, the exposed surfaces of the flanges 3 and the mould are preferably coated with a gel coat, e.g. a polyester resin. The exposed surfaces of the flanges are preferably dry-abraded and cleaned with a solvent before applying the gel coat. Glass-fibre may be used as the reinforcement. As shown in Fig. 2, two panels are united initially by bolts 5 and finally by welding 6, the latter being carried out with a P.V.C. rod and a hot-air gun. Alternatively, the panels may be adhesively united using a solution of a copolymer of vinyl chloride, vinyl acetate and maleic anhydride.
Patent GB-1057560-A (GB)
Title: Improvements in or relating to presses
Inventor: CHIFFEY EDWARD
IPC: B21D43/04
Filed: 1964-10-22
Abstract: 1,057,560. Presses; blanks transferring. CONEX SANBRA Ltd. Oct. 19, 1965 [Oct. 22, 1964], No. 43073/64. Headings B3H and B3W. A press of the kind including a reciprocable ram 10, a stationary die 12, and a reciprocable feed slide 38, includes a mechanical driving connection between the ram and slide which is interrupted in the vent of the slide becoming jammed. The driving connection includes a toggle mechanism on each side-of the slide, each mechanism comprising four arms 46, 48, 50, 52. Arms 46 and 48 are pivotally connected to the ram and slide respectively while arm 50 is pivoted by a pin 64 to the arm 52 which is attached at 66 to a press support 30. The arm 52 is biased downwardly by a spring so that the pin 64 normally remains at the bottom of a guide slot 36. A common pivot pin 66 connects the ends of arms 46, 48 and 50, these arms being adjustable in length. In operations, the slide 38 is moved to the position shown as the ram 10 is raised, thus feeding a blank from a shoot 20 to the die 12. Simultaneously, a previous blank is ejected from the die 12 and pushed by the end of the slide 38 to a discharge station. Should the slide jam. the pivot point 68 becomes stationary and upward movement of the ram causes the pin 64 to be pulled upwardly in the slot 36. A microswitch 68 is contacted by the arm 52 and drive to the ram is interrupted. The ram is driven by an electric motor, and the blanks reaching the shoot 20 are fed in step-by-step manner from a gas fired furnace 16.
Patent GB-1509498-A (GB)
Title: Manufacture of glass
IPC: C03B5/173
Filed: 1976-10-19
Abstract: 1509498 Making glass melts CRYSTALEX OBOROVY PODNIK 19 Oct 1976 [21 Oct 1975] 43255/76 Heading C1M In preparing a glass melt for manual working, an electric furnace with horizontal heating electrodes having a submerged throat for passage of the melt to the working chamber is used, and the melt surface in the furnace is maintained at a distance above the electrodes which is never less than six times the smallest vertical dimension of any of the electrodes and the ratio of surface areas of the working chamber/the furnace is made equal to one to two. The required dimension in the case of rod electrodes is the cross-sectional diameter; for coloured glass the working chamber is supplied with colour concentrate at or near the bottom of the chamber under an automatically adjustable hydrostatic pressure; and the chamber is provided with heating and homogenizing means. More than one working chamber may be provided.