baber/WOPTO huggingface dataset:
Patent GB-894958-A (GB)
Title: Improvements in or relating to electric switching circuits
Inventor: IMM RONALD CHARLES
IPC: H03K17/64
Filed: 1958-04-14
Abstract: 894,958. Magnetic recording &c. heads; local circuits for. GENERAL ELECTRIC CO. Ltd. July 3, 1959 [April 14, 1958], No. 11849/58. Class 40 (2). [Also in Groups XIX and XL (c)]  In a circuit for making a connection between a common input circuit and one of a number of heads of a magnetic drum store, the emittercollector path of a transistor in the circuit of each of the heads is used as a switch controlled by control signals applied to the respective emitter base circuits, and a distortion of the signals during the switching-on period of the transistors is avoided by applying the control signals to the transistors before the signals to be switched arrive. In the circuit shown, binary information in the form of a positive pulse followed by a negative pulse or a negative pulse followed by a positive pulse according to whether the information represents a " 1 " or " 0 " is applied through an input transformer 1 to one of a number of recording heads 3, 4 &c. by operating one of the switches 17 to render the corresponding transistor 6, 7, &c. conducting. Distortion of the signal during the switching on period of the transistor is avoided by operating the switch prior to the arrival of the signal at transformer 1. The switches 17 may be constituted by a diode coincidence network adapted to selectively operate the appropriate transistor, and the magnetization of the core of transformers 12 may be neutralized by applying a current to a third winding through a resistance and inductance circuit. The circuit may be arranged also to read stored signals by providing a third output winding on the transformer for the signals read and by connecting a further transistor in the write input circuit to prevent the write signals being transferred directly to " read " output circuit.
Patent GB-1392906-A (GB)
Title: Method of photographically preparing anamorphic pictures
IPC: G03B27/68
Filed: 1973-03-12
Abstract: 1392906 Ornamenting surfaces REFLECTOMORPHICS Inc 12 March 1973 [15 March 1972] 11878/73 Heading B6G [Also in Division G2] Anamorphic pictures prepared by a photographic process (see Division G2-G3) are used to ornament cocktail trays so that images of the pictures reflected by a glass or cocktail shaker on the tray appear normal. Floors may be similarly ornamented for viewing via reflective columns.
Patent GB-528313-A (GB)
Title: Improvements relating to inking devices for printing mechanism
IPC: B41F31/24
Filed: 1939-04-20
Abstract: 528,313. Inking apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and ROBINSON, M. H. April 20, 1939, No. 11922. [Class 100 (ii)]  In an inking - apparatus, particularly for a ticket printing machine, ink is supplied to a transfer roller having a surface of synthetic resin by a wick k connected to or forming part of a porous pad f which is provided with means, e.g., a screw operated clamping plate g to vary. its compression and porosity and thus the amount of ink conveyed to the roller 1. This roller is in continuous contact with the pad f and is geared to a felt covered roller n in contact with the printing forme. The pad holder d is pivoted and pressed toward the roller l by a spring r and the whole apparatus is pivoted about a pin t and pressed towards the forme by a spring s, The spindle of the roller l is mounted in slots and pressed towards the roller n by springs p adjustable by screws q.
Patent GB-1174882-A (GB)
Title: Opthalmic Compositions
Inventor: STONE CLEMENT ADDISON
IPC: A61K9/00
Filed: 1968-03-12
Abstract: 1,174,882. Ophthalmic compositions. MERCK & CO. Inc. 12 March, 1968 [16 March, 1967], No. 11980/68 Heading ASB. An anti-glaucoma topical ophthalmic composition comprises 10, 11-dihydro-5-(3-dimethylaminopropyl)-5, 10-epoxy-11-hydroxyimino- 5H-dibenzo [a, d]-cycloheptene or trans 10, 11- dihydro-5-(3-methylaminopropyl)-5, 10-epoxy- 11-hydroxy-5H-dibenzo [a, d] cycloheptene, or their non-toxic acid addition salts (e.g. hydrochloride or hydrogen maleate), together with a conventional topical ophthalmic ointment or a topical ophthalmic buffered isotonic aqueous solution containing a preservative. The compositions may also contain an exogenous sympathomimetic amine (e.g. epinephrine, norepinephrine or isoproterenol), 8-hydroxyquinolone sulphate, sodium bisulphite, phenylmercuric acetate and boric acid and/or sodium borate.
Patent GB-968557-A (GB)
Title: Double toggle crushing machines
IPC: B02C1/02
Filed: 1962-03-29
Abstract: 968,557. Jaw-crushers. PEGSON Ltd., and R. TABERNER. June 13, 1963 [March 29, 1962], No. 11996/62. Heading B2A. An hydraulic transmission provided in a double-toggle jaw-crusher is incorporated in a pitman transmission 10 between a driving- eccentric 9 and the toggle-plates 11, 12 which drive the movable jaw 8 and is arranged so as to be capable of being set to collapse at a specified load. As described, the pitman comprises an upper sleeve 20 enclosing bearings mounted upon the eccentric and a lower block 22 suspended from the sleeve 20 by four bolts 23 on which it is free to move. Two ram-andcylinder units 27 are bolted to the upper surface of the block, so that the upper ends of rams 29 bear through pads 31 on the underside of the sleeve 20. In operation, pressure-fluid is supplied to the cylinders 27 so that thrust may be relayed from the sleeve to the toggles, and when the desired pressure is attained a pressureoperated switch in an hydraulic-circuit stops the fluid-pump. The pressure is maintained by a check-valve, but in the event of leakage in the system the pressure-operated switch restarts the pump and repressurizes the system. When the jaw 8 meets tramp material, the pressure rises, operating the hydraulic-circuit to relieve the units 27 and thus the load on the pitman, so that movement of the eccentric is not transmitted to the jaw. A pressure-operated switch in the circuit operates an alarm and stops the fluid-pump and the prime mover of the plant, and pressure is maintained in the system until the units are fully retracted. Adjustable stops on the pitman-block 22 co-operate with abutments on the side walls of the machine to limit upward movement of the cylinder-units 27 and keep them clear of the sleeve 20. A front toggle seat-block 19 is located by an hydraulic-cylinder 54, and is clamped on the jaw-stock 7 by a plate 53 actuated by two hydraulic-cylinders 56, supplied with fluid by a hand pump. To keep the cylinder units extended the pressure is maintained by check-valves in the hydraulic lines, the appropriate units being selected by stop valves, and shims 52 are used to vary the fore and aft position of the block 19 relative to the stock 7. To clear tramp material from the jaws, the clamp-plate 53 is released by operation of the cylinders 56, and the block 19 is then released by operation of the cylinder 54, so as to move the block 19 away from the jaw-stock. After removal of shims 52 and swinging back of the jaw-stock 7 under the pull of tie-rods 14, the tramp material is removed, the units 56 are operated to clamp the block 19 and the swing-jaw is operated without the shims and hence with a wider gap, so as to clear any remaining tramp material. The unit 54 is then operated to locate the block 19 and facilitate replacement of the shims 52. When the machine is restarted, the flywheel speed is built up and coupling takes place by gradually extending the rams 29 by priming the cylinders 27, so that the sleeve 20 on the eccentric will progressively engage the rams. Specification 917,743 is referred to.
Patent GB-200268-A (GB)
Title: Improvements relating to the manufacture of cores for mercurial cut-outs
IPC: C04B33/02
Filed: 1922-04-29
Abstract: 200,268. Illingworth, W. H. April 29, 1922. Mercury cut-outs.-A core for mercury cut-outs of the type described in Specifications 121,305, 138,439, 159,917, 166,286, 172,446, 189,284, 190,096, and 190,988 is manufactured from ball clay, quartz and fire clay. The clay preferably contains naturally a small amount of felspar, silica, and alkalies and a core designed for 25 amperes may consist of 4 parts ball clay, 1 part fused quartz and 1 part Stourbridge fire clay treated by the Osmose process. The material is washed, ground, filtered and treated electrically to remove impurities. It is then submitted to pressure, moulded to the required shape and dried. The cores are now submitted to three firing operations, at specified temperatures, which vary in duration according to the size of the core. During the last two operations the cores rest on trays A, constructed so that the heat from the furnace passes up the core passage.
Patent GB-541261-A (GB)
Title: Improvements in and relating to the production of crimped threads or filaments
Filed: 1940-07-23
Abstract: 541,261. Treating yarns &c. CARBIDE & CARBON CHEMICALS CORPORATION. July 23, 1940, No. 12037. Convention date, Oct. 25, 1939. Addition to 518,710. [Class 120 (iii)] [Also in Group IV] Threads, or yarns made from a vinyl resin obtainable by the conjoint polymerisation of a vinyl halide with a vinyl ester of an aliphatic acid and having an average macromolecular weight of at least 15,000 are given increased tensile strength by being passed continuously through a liquid or vapour which will not attack or dissolve the resin, the temperature of the liquid or vapour being at least 100C. and the threads being stretched as they pass through it while surface wetted with a non- solvent for the resin; the liquid or vapour may be heated to a temperature between 100 and 130C., may be wet steam, and the threads may be stretched up to about 600 per cent. The threads may be passed continuously through a non-solvent liquid heated to a temperature in excess of 100C. and stretched while in contact with and wetted by said heated liquid. The resin is preferably that obtainable by the conjoint polymerization of vinyl chloride and vinyl acetate, containing about 70 to 95 per cent. by weight of vinyl chloride in the polymer and the threads may be stretched while passing continuously through 'diethylene glycol heated to a temperature in excess of 100C. and while in contact with and wetted by the heated diethylene glycol. As shown a yarn 10 is drawn from a supply bobbin 11 by a bobbin 13 driven by a roller 14 and is wound up by a bobbin 25 driven by a roller 26 with a peripheral speed several times that of the bobbin 13 to impart the desired stretch to the yarn. The yarn makes half a turn around the bobbin 13, passes over a pulley 15, around the bobbin 13, again and then passes through a chamber 16 provided with a steam inlet 17 and thermometer 18, the yarn is heated, wetted, and stretched in the chamber and passes therefrom over pulleys 19, 20 to a pulley 21 immersed in a cold water bath 22 from which it passes to the traverse guide 24 of the bobbin 25. In a modification the supply bobbin is driven, the yarn is lapped several times around a positively driven roller in a heated bath and an idler roller and passes from the bath to the winding-up bobbin.
Patent GB-890580-A (GB)
Title: Improvements in or relating to reading circuits for signals stored on a magnetic medium
Inventor: FORSHAW GEOFFREY
Filed: 1958-04-16
Abstract: 890,580. Magnetic data-storage apparatus. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 3, 1959 [April 16, 1958], No. 12102/58. Class 106 (1). A circuit providing two complementary output signals at SL, SL in response to signals from the read-head RH of magnetic drum, disc or tape data storage apparatus using the phasemodulation method of recording described in Specification 707,634 in which the polarity of the voltage induced in the read head at the instant of a strobe pulse is indicative of the binary digit being read, comprises an amplifier (transistor stages TX1-3 in cascade), a phasesplitter TX4, and gates TX5, 6 opened by strobe pulses from SS to enable the flip-flop TX8, 9 to be appropriately switched. The amplifier has negative feedback provided by undecoupled resistor R6, and D1 compensates for the non- linear input impedance of TX3.
Patent GB-1057543-A (GB)
Title: Method of growing lithium ferrite
IPC: C30B9/00
Filed: 1964-03-24
Abstract: Single crystal lithium ferrite, Li0.5Fe2.5O4 is grown by heating a nutrient (e.g. Li2CO3 and Fe2O3) together with a flux of B2O3 and Pb to a temperature sufficient to dissolve the nutrient (e.g. 1200 DEG C.) and cooling at a controlled rate to precipitate the crystals. The weight ratio of B2O3:PbO is in the range 1 : 5.8 to 1 : 6.6 and the nutrient to flux ratio from 1 : 3.7 to 1 : 4. The Li2CO3 to Fe2O3 ratio may be from 1 : 2.8 to 1 : 3.7.  In examples the starting ingredients are heated initially to 1000-1200 DEG  C. and maintained there for 1 to 3 hours, the furnace is cooled rapidly to 850 DEG  C., maintained there for 1 hour and controlled cooling at 1/2 to 5 DEG C per hour is applied until the temperature falls to approx. 500 DEG C.  The lithium ferrite has a highly ordered structure and a spin wave line width of 0.5.
Patent GB-1027932-A (GB)
Title: Improvements in or relating to methods and apparatus for producing flat glass in ribbon form
Inventor: BEATTIE JOHN REGINALD
IPC: C03B15/02
Filed: 1962-03-30
Abstract: In a plant for making flat glass, the surfaces of the cooling members facing the glass and, if desired, the inside walls of the chamber through which the glass is passed are provided with a coating of a particulate refractory material of high heat-absorption coefficient. The opposite faces of the cooling members may be coated with material having a high heat-reflective coefficient. The refractory material is chromium sesquioxide or silicon carbide, and the heat-reflective material is zirconia containing 5% calcium oxide, or alumina.  The coatings, which are approximately 0.005 inch in thickness, are applied by spraying.
Patent GB-715192-A (GB)
Title: A new or improved addition material for paints
IPC: C09F9/00
Filed: 1950-05-18
Abstract: Compositions comprising mixture of one or more naphthenates, oleates, linoleates, resinates of cobalt, lead, manganese and zinc with volatile solvents or diluents selected from the group white spirit, turpentine, naphtha, xylol and dipentene in which the solvent or diluent comprises 95 per cent. are used as additives for paints.
Patent GB-632708-A (GB)
Title: Control apparatus for automatically regulating and applying an operating force to a movable member
IPC: G09B9/24
Filed: 1946-04-25
Abstract: 632,708. Electric control systems. DEHMEL, R. C. April 25, 1946, No. 12475. Convention date, May 1, 1945. [Class 40 (i)] A controlled member is actuated by a variable control element through a structure having a variable mechanical advantage, and an electric motor is arranged to assist the movement of the controlled member when the mechanical advantage is reduced to a predetermined level, the control element increasing the current to the motor as the mechanical advantage is further reduced. The invention is applied to an aircraft training apparatus as disclosed in Specification 611,304, in which the instant position of a simulated flight with reference to a radio beacon is shown by a charting element 1, Fig. 1, relative to a fixed point 3 ; the element 1 is connected to a pantograph 4 and is driven in two directions at right-angles by chains 11, 12, Fig. 2, engaging sprockets 9, 6 and 10, 7, sprockets 6, 7 being rotatable by the trainee ; the element 1 slides within and moves a member 2 about the fixed point 3 so that the direction of member 2 represents the bearing of the simulated flight relative to the beacon. When the element 1 is near the fixed point 3, the friction between it and the table may prevent movement, and the invention provides an auxiliary force from motor 52, and gearing 54, 55 to rotate the member 2 in the appropriate direction to overcome the friction. The element 1 carries a slide 14, Fig. 3, moving within the member 2, and when near to the fixed pivot 3, any torque applied from sprockets 6, 7 causes the slide 14 to earth either contact 22 or 23 to close the circuit of either thermistor 26, 27 to unbalance the normally equal and opposite potentials at 36, 37 and apply a voltage to the grid of valve V1 whose phase is dependent on which contact 22, 23 is completed. The output of valve V1 is applied to valve V2 to produce a push-pull voltage controlling valves V3, V4 controlling the motor 52, so that the member 2 is rotated in the direction of the applied force. As the thermistor heats its resistance reduces to increase the magnitude of the voltage applied to V1 until the slide 14 is mid-way between the walls of member 2. When the slide 14 approaches still closer to the pivot point 3, its level movement causes a magnet 56 incorporated in it to displace a pivoted magnet 57 to rotate windings 60 to generate therein a differential voltage which is applied to valve VI to control the motor as before, until the slide is mid-way between the walls of the member 2.
Patent GB-1518925-A (GB)
Title: Suction box for travelling grates
IPC: F27B21/06
Filed: 1977-03-24
Abstract: 1518925 Suction boxes for sinter strands METALLGESELLSCHAFT AG 24 March 1977 [26 March 1976] 12548/77 Heading F4B In a suction box for use with a travelling grate and having exhaust gas conduits extending laterally from opposite for connection to manifolds, a plate 3 is arranged in the box so that it contacts the lower edge of the mouth of the conduit 2 to be closed, and the side wall 4 of the suction box, so that it is inclined at an angle of between 31-38 degrees, where the end walls of the suction box are inclined at an angle between 53-75 degrees, so that the plate contacts the end walls along a line inclined at between 29.5-37 degrees. The plate is held in position by the suction applied to the conduit, and is changed to close the other conduit by means of the normal crane associated with a sinter strand when it is desired to utilize an alternative path for the waste gases, e.g. when the composition of material to be treated on the grate is changed. The orientation of the plate allows the use of a shallow suction box without clogging by fines.
Patent GB-1162902-A (GB)
Title: Improvements in or relating to panty-girdles
Inventor: OSTERMAN HERBERT
IPC: A41C1/00
Filed: 1967-03-17
Abstract: 1, 162, 902. Pantie girdle. H. OSTERMAN and J. S. BLANCHET. 17 March, 1967 [18 March, 1966], No. 12645/67. Heading A3V. A panty-girdle is formed from a main panel A of elastic fabric attached to an elastic belt C and when made has a central ventral seam 33 and the free edges la, lb of thigh openings intersect at a sharp angle at the front of the girdle. A reinforcing panel B is superimposed on the panel A and the warp c and weft t of the panels A, B are arranged as shown. The elastic fabric is preferably openwork fabric. The main panel A has recesses 2, 11 whose edges are sewn together to form seams 31, 32 at the rear of the girdle. The belt C is formed of conventional elastic band. The edges la, 1b of the recesses 1 are arranged in the direction of the fabric to prevent tearing. Provision may be made for a sanitary lining. The girdle may have suspenders and the thigh openings surrounded by fabric, lace for decoration or reinforcement. The seam 31 may extend as far as the belt C.
Patent GB-1534827-A (GB)
Title: Contoured foam mattress
IPC: A47C27/14
Filed: 1977-03-25
Abstract: 1534827 Casting foam mattress cores GOODYEAR TIRE & RUBBER CO 25 March 1977 [19 April 1976] 12645/77 Heading A4M [Also in Division B5] A method of forming a mattress having a grooved crown comprises moving a mould 15 having a core 16 relative to foam feeders 17 which distribute the foamable resin e.g. polyurethane in fan-shaped arcs 18 into the mould 15. The core 16 may form hexagonal or circular patterns and may comprise truncated pyramids or hexagonal members. The grooves 9 may be 0À5-2" deep, may extend no closer than one inch of the edge of the mattress, and may extend continuously in lengths no more than 4" before the grooves terminate or change direction.
Patent GB-115566-A (GB)
Title: Automatic Machine for Shaping Heels and other Irregular Articles.
Inventor: POOL JOHN GEORGE
IPC: A43D87/00
Filed: 1917-09-04
Abstract: 115,566. Pool, J. G. Sept. 4, 1917. Shaping by cutting.- Heels for boots and other articles are. cut from blanks of wood, leather, leather-board, &c., by rotating them in contact with one cutter to cut one side and then in contact with a second to cut the other side. The blanks are clamped to a plate 115, Fig. 16, by a pivoted jaw 128 by means of a cam lever 135 acting through a floating lever 130 pivoted at either end to a spring-pressed slide 131 and a slide 123 connected to the jaw. The jaw, which is raised by a spring 137, is carried by a block 117 adjustable by slots 118 and bolts 119 on bars 112 which are adjustable in another direction by slots 113 and bolts 114 on the base 104. Each work-holder is pivoted at 101 to the head 100 of a spindle 93 carried in a turret 97, Figs. 1 and 3, which is intermittently rotated through 90 degrees by a crank-disk 66 on the worm-driven shaft 38, Fig. 11, link 65, toothed segment 63 pinion 62, Fig. 5, one way ratchet 68, and gearing 58, 56, 55. The spindles 93, Fig. 5, are feathered in bevel gears 91 meshing with gears 92 on shafts 86 which have pinions 85 engaging racks 83, bowls 82 of which engage grooves in a fixed cam. These grooves are not in register, but the bowls are carried from one to the other during the pause of the turret by slides 13, 14 connected to a lever 18, Fig. 12, which is rocked by a cam 36. This causes the following rotary movements of the blank, &c. During the movement from A, where a fresh blank is introduced and set by a gauge 142, to B, Fig. 3, the blank is turned to present the front end of one side to the shaped cutter E and is then, while the turret is at rest, rotated so that one side is shaped; during the movement from B to D, the other side is presented to the cutter F and is operated upon similarly. During the rotation of the blank it is moved vertically by a cam 98 engaging the head 100, and is tilted by a cam 99 engaging an adjustable foot 107, Fig. 16. of the base 104. The cutters E, F are brought up to the working position by a cam 166, Fig. 15, operating a toothed segment 162, pinions 160, 160<x>, racks 159, levers 155, 151, Fig. 1, and springs 154 acting on the sliding brackets 144. The guides 149 for these brackets are adapted to be moved vertically by screws 182. Each bracket 144 carries an arm 169 engaging a cam 168 on the spindle 93 to move the cutter relative to the blank, and an adjustable arm 171, Fig. 22, engaged by a bowl 172 on the spindle 93 to withdraw the cutter when the whole of one side has been operated on. The turret is locked in its rest positions by a spring bolt 70, Fig. 5, withdrawn by a cam 79, as shown in Fig. 6.
Patent GB-1351498-A (GB)
Title: Suspension shield
IPC: G09F3/04
Filed: 1971-05-03
Abstract: 1351498 Label support STOBA AG 3 May 1971 [6 May 1970] 12696/71 Heading B8F A planar plastics label support is as shown and may include reinforcing ribs on a label support surface 1. Barbs 8 may be omitted and only one tongue member 3 incorporated. In a further modification, two tongue members 3 project from a single edge 2, each member 3 having a hook 4, the hooks 4 co-operating to form a narrow entry for a packaging net. The barbs 8 may be provided with barbs which are orientated away from the free ends of respective barb 8. Reference has been directed by the Comptroller to Specification 1,288,490.