baber/WOPTO huggingface dataset:
Patent GB-894613-A (GB)
Title: Improvements in or relating to apparatus for assessment of film badges
Inventor: WILSON GEORGE RAYMOND BRISCOE
IPC: G01J1/24
Filed: 1959-12-22
Abstract: 894,613. Measuring optical density. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 25, 1960 [Dec. 22, 1959], No. 43609/59. Class 40(3). Relates to apparatus for assessing the optical density of a developed film badge, such a badge being worn by a person in a radio-active area to measure the amount of radiation to which the person has been exposed. According to the present invention a strip of comparator film 3 whose optical density varies as a linear or exponential function of its length is mounted around the perimeter of a wheel 1, the developed film badge 5 is mounted in a holder 4 and light from a mains energized electric lamp 6 located midway between the films 5 and 3 is projected by lenses 8 and 7 through the film 5 and through a portion of the comparator film 3 on to photo-transistors 10 and 9 respectively. The A.C. outputs from the photo-transistors 10 and 9 are combined in a differential amplifier, Fig. 3 (not shown), to give an error signal of amplitude proportional to the difference between the density of the film badge 5 and that of the portion of the comparator film 3 through which the light is projected and the error signal is applied to a two-phase motor 13 which rotates the wheel 1 to reduce the error signal to zero, the resultant angular position of the wheel 1 being indicative of the optical density of the film badge 5. Alternatively, light may be projected through the films 3 and 5 from separate sources of fixed relative intensity. To obtain greater sensitivity in the denser ranges of the film the intensity of the light source(s) is controlled automatically in accordance with the angular position of the wheel. In the absence of a film in the holder 4 the motor 13 will set the wheel 1 to a datum position, any variation in the datum position being indicative of a fault in the circuitry.
Patent GB-1171848-A (GB)
Title: Room Temperature Vulcanizing Silicone Compositions
IPC: C08L83/04
Filed: 1967-09-26
Abstract: 1,171,848. Silicone coatings. GENERAL ELECTRIC CO. 26 Sept., 1967 [20 Oct., 1966], No. 43797/67. Headings B2E and B2K. [Also in Division C3] A room-temperature vulcanizing coating composition comprises (1) a silane having 1 or 2 Si-bound amino groups and 1 or 2 Si-bound acyloxy groups and optionally up to 2 alkoxy and/or monovalent hydrocarbon groups and (2) a liquid hydroxy-terminated polydiorganosiloxane (see Division C3). In Example 12 a mixture of a dihydroxy polydimethylsiloxane and acetoxy (isopropylamino) dimethoxysilane is poured onto woven glass cloth and cured in moist air to a reinforced rubber sheet. In Example 13 a mixture of a similar polysiloxane and acetoxy (isopropylamino) diathoxysilane with fumed silica and red iron oxide is trowelled onto concrete and cured in moist air.
Patent GB-896203-A (GB)
Title: Roll positioning system for toroidal variable ratio transmissions
IPC: F16H15/38
Filed: 1959-12-24
Abstract: 896,203. Variable-speed friction gear. AVCO CORPORATION. Dec. 24, 1959 [Jan. 29, 1959], No. 43841/59. Class 80 (2). Means are provided to ensure that during precessional ratio-shift movement of non- planetary rollers 50 in a toric-disc friction-gear they share the load equally. Each roller is rotatable about a sleeve 77 which pivots about a pin 78 mounted on a yoke 70. Each yoke 70 is pivotally mounted by means of hollow pivotpins 71, 72 on spring arms 63 secured to a threearmed element 60 fast with a stationary shaft 10. Each sleeve 77 has a cam groove 86 engaged by a button 85 on a common controlring 68 which is rotatably supported on the element 60 by rollers 66. Precession to change speed is initiated by rotating the control-ring 68 which initially tilts the rollers 50 about the pins 78 ; subsequently the tilting movement is about the pivots 71, 72, and during this latter movement the buttons 85 and cam grooves 86 restore the rollers to their initial positions relative to the pins 78. The spring arms 63 ensure that the rollers 50 share the load equally since the deflection they undergo is a function of the load. Three rollers 50 are provided and transmit torque from an input disc 5 to an output disc 7 ; Disc 7 is fast with a ring gear 35a meshing a stepped planet 36 in a stationary carrier 11, the other step of the planet meshing a sun 40 driving an output shaft 42. Gear 35a also drives a pump 44 supplying oil through passages 46 to the hollow pivots 71, 72 whence nozzles (Fig. 4, not shown) direct oil to the contact points of the rollers and discs. Disc 5 is mounted by means of a ball thrust bearing on a hub 12 and disc 7 is rotatably mounted on the stationary shaft 10; a bolt 15 is provided in the shaft 10 and a nut 18 thereon bears against the hub 12 and can be adjusted to vary the contact pressure between the rollers and discs.
Patent GB-1246323-A (GB)
Title: Frequency responsive circuit
IPC: H03K11/00
Filed: 1968-09-16
Abstract: 1,246,323. Frequency discriminators; monostable circuits. DYNAMIC PRECISION CONTROLS CORP. 16 Sept., 1968 [26 Sept., 1967], No. 44004/68. Headings H3A and H3T. [Also in Division G3]  A system for controlling a variable, e.g. the speed of an engine or motor, comprises: means for generating a train of regularly spaced input pulses having for example a frequency proportional to speed; a monostable circuit having a variable time constant and fed with the pulse train to produce output pulses having a width dependent on frequency; and an actuator fed with the output width pulses to control the variable such that the frequency of the input pulses has a predetermined relation with pulse width. In one embodiment, Fig. 2, input pulses turn on transistor 21 to charge capacitor 33. turn off transistor 42 and turn on transistor 43. At the termination of an input pulse, transistor 21 switches off, and capacitor 33 discharges through resistor 32 until transistor 42 switches on again and transistor 43 switches off. The resulting constant width pulses are integrated by CR network 19 to provide an output which varies inversely with frequency. If the input frequency exceeds a predetermined limit the circuit 42, 43 does not have time to reset before the next input pulse and transistor 43 remains switched on giving zero output from network 19. The limit at which this occurs may be varied by resistor 32 which varies the relaxation time of the monostable circuit. In a modification, Figs. 6, 7, 8 (not shown), the capacitor 33 is arranged in shunt with the emittercollector path of transistor 21. These arrangements also include level sensing circuits connected to the output in place of network 19, which switch their state at a predetermined frequency.
Patent GB-1467697-A (GB)
Title: Data storage apparatus
IPC: G11B17/02
Filed: 1974-10-11
Abstract: 1467697 Flexible disc data storage apparatus INTERNATIONAL BUSINESS MACHINES CORP 11 Oct 1974 [7 Nov 1973] 44121/74 Heading G5R Data storage apparatus has flexible record discs 10, Fig. 2, mounted on a hollow spindle 12 for rotation therewith, the interior of the spindle being connected to a pressurized air source, and the spindle having apertures 25 distributed along its length and arranged so as to pass air from said source outwardly between the discs. Magnetic flexible discs 10 are mounted with, and between, stabilizing backing plates 38a, 38b on a sleeve 27 located on spindle 12 and having slots 26 for passage of air out of spindle 12 via apertures 25 therein. Spacers 18 between adjacent discs have passages therein for radial air flow. To access data on a selected disc, a stepping motor (34), Fig. 1 (not shown), is operated to move a carriage (32) axially of the disc stack and then a linear actuator (29) is operated to insert a wedge-like disc separator 28, Fig. 4, on carriage (32) between the selected and an adjacent disc, whereby a head 30 on the carriage is brought into transducing relation with the selected disc. The separator 28 has a flat side that maintains the disc to be accessed in a planar state, and air bearings are formed to minimize contact between the discs and the separator 28 by providing an air flow through the latter.
Patent GB-1460327-A (GB)
Title: Cephalosporins
IPC: C07D501/36
Filed: 1974-10-14
Abstract: 1460327 Cephalosporin derivatives TAKEDA YAKUHIN KOGYO KK 14 Oct 1974 [15 Oct 1973] 44436/74 Heading C2C The invention comprises compounds of the formula where X is an alkanoyloxy group of up to 4 carbon atoms or a group of the formula -SR where R is a nitrogen-containing heterocyclic group, or a pharmaceutically acceptable salt or ester thereof. The compounds may be prepared by (1) reacting a compound of the formula or a salt or ester thereof, with diketene, or (2) reacting a compound of Formula I wherein X is an alkanoyloxy group of up to 4 carbon atoms or a salt thereof with a compound of the formula RSH. The compounds may be used as antibiotics.
Patent GB-1284295-A (GB)
Title: Radiation gauging instrument and method
IPC: G01N23/09
Filed: 1969-09-09
Abstract: 1284295 Radiation detection TROXLER ELECTRONIC LABORATORIES Inc 9 Sept 1969 [19 Dec 1968] 44472/69 Heading G1A In an arrangement for investigating a test sample 11, fast neutrons from a radio-isotope source 10 irradiate both the test and reference samples 11, 12 wherein they are converted to slow neutrons which produce output pulses from the detectors D1, D2 the reference output being used to gate the test output so that the counter 17 records the number of pulses produced by detector D1 in the same time period that D2 produces a pre-set number of pulses. A shield 13 transparent to fast neutrons but opaque to slow neutrons prevents interference between the test and reference channels. The divider 15 is set to a predetermined number, e.g. 250, 000, and on receipt of the first reference pulse a gate 16 is opened. Receipt of the 250,000th pulse closes the gate, and the accumulated test sample count in counter 17, which may be of the gas discharge tube type, can be read off. The neutron-moderating property of hydrogen in soil is the basis of a portable instrument, Fig. 6, for determining the hydrogen content of soils. Here the test sample is a layer of the soil, which may be a top layer or at some distance within the soil. The irradiated volume is defined by collimators on the source 10 and test detector D1. In other embodiments of the invention the property of the test specimen chosen for comparison with a reference specimen may be its absorption or scattering of γ-rays. In all cases a plurality of sources may be used to irradiate both the test and reference samples.
Patent GB-1400826-A (GB)
Title: Rolling bearing assembly
IPC: F16C35/067
Filed: 1972-09-27
Abstract: 1400826 Bearings CAM GEARS Ltd 26 Sept 1973 [27 Sept 1972] 44665/72 Heading F2A In a rolling bearing assembly comprising an inner race 34, an outer race 25, and a plurality of rolling elements therebetween, at least the outer race is formed of a plastics material and has a sleeve-like integral extension 29 adapted for attaching the assembly to a tubular member 32 to prevent relative movement in the axial direction of the said member. The extension 29 has an inwardly turned lip 30 which engages within an annular recess 31 in the member 32. The member may have one or more axially extending slits which provide flexibility. The inner race 34 may have a similar extension 35. The outer race may also have one or more integral radial projections 26 for attaching the assembly to a wall 27.
Patent GB-1415249-A (GB)
Title: Packages for rolls of tape
IPC: B65H16/02
Filed: 1973-09-24
Abstract: 1415249 Tape package TRENGEREID FABRIKKER AS 24 Sept 1973 44699/73 Heading B8M A package for a roll of tape adapted to stand on edge free-standing or in a rack 20, 21, 22, 23, comprises main and cover portions formed centrally of the package with interfitting sleeve bearings 14 to support the tape roll and corresponding peripheral flanges 13 concentric with the bearings 14 and defining an opening 16 through which the tape can be dispensed. The main and cover portions define, radially outwardly of the flanges 13 a substantially rectilinear front edge 12 adapted to engage a rod 20, a bottom edge 17, and a rear edge 19 having a cavity 24 for receiving a rod 23. In the solid line position shown the package is held in the rack while tape is dispensed but when the tape is consumed the empty package may be removed from the rack by tilting it into the broken-line position.
Patent GB-915544-A (GB)
Title: Improvements in or relating to apparatus for controlling centrifugal compressors having a variable intake pressure
IPC: F04D27/02
Filed: 1960-12-30
Abstract: 915,544. Fluid-pressure servomotor-control systems. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Dec. 30, 1960 [Jan. 27, 1960], No. 44755/60. Class 135. [Also in Group XXVI] Apparatus for controlling a centrifugal compressor 1 comprises two diaphragms or pistons 12, 13, the diaphragm 12 being connected on opposite sides by conduits 28, 29 to the upstream and downstream sides of the compressor while the diaphragm 13 is connected by conduits 30, 31 to either side of an orifice 6 located in the discharge or intake conduit of the compressor. The two diaphragms are connected by a linkage, pivoted about an adjustable pivot 20, to a pivoted fluid jet 23 which directs fluid through conduits 25, 26 to act on a piston 8. Pivoting of the jet actuates the piston 8 to adjust a valve member 9 which controls flow in the by-pass conduit 7 to the intake side of the compressor through an opening 10. The conduit 7 may open to the atmosphere instead of the compressor intake. Alternatively, the control member actuated by the linkage may adjust a speed governor of the prime mover of the compressor.
Patent GB-1456950-A (GB)
Title: Process for the manufacture of thianthrene
IPC: C09B57/00
Filed: 1975-10-30
Abstract: 1456950 Manufacture of thianthrene HOOKER CHEMICALS & PLASTICS CORP 30 Oct 1975 [5 Nov 1974] 44986/75 Heading C2C A process for the preparation of thianthrene comprises adding sulphur monochloride to a stoichiometric excess of benzene in the presence of a catalytic amount of aluminium chloride, maintaining a molar ratio of benzene to sulphur mono-chloride of greater than 5À0 : 1, and reacting at a temperature of between 60‹ C. and the boiling point of the benzene, to yield a crude, insoluble thianthrene product in the form of a thianthrene-aluminium chloride complex and separating said complex from the reaction medium.
Patent GB-1099912-A (GB)
Title: Hydraulic extrusion apparatus
IPC: B21C23/00
Filed: 1965-10-25
Abstract: 1,099,912. Extruding. BAROGENICS Inc. Oct. 25, 1965 [Oct. 27, 1964], No. 45055/65. Heading B3P. [Also in Division F1] The pressurizing chamber 53, Fig. 4, of an hydraulic intensifier is bounded by the bore 41 of a cylinder 40 and the stem 52 of a piston 51 is subjected to fluid pressure over its full area admitted through a port 43 in a cylinder end closure 42 and the stem projects through and is supported by an axial bore 56 of an opposite cylinder end closure 54 and is provided with a pressure seal 72. The so-pressurized liquid in chamber 53 serves to extrude one or more billets 60 through a die or dies 61 and a passage or passages 62 in the cylinder end closure 54. In a modification the piston 130, Fig. 6, is stepped and its stem 110 is tubular and serves to rigidly house the die 121 and extrusion passage 122; pressurized fluid in chamber 115 being transmitted to the billet 124 within the stem 110 through orifices 117. In a further modification the tubular stem (165) Fig. 7 (not shown), slides along a fixed post (157) having radial and axial bores (177, 178) through which pressurized liquid (55) from chamber (152) passes to the billet chamber (153); the stem having a radial bore (175) and a groove (176) of variable angular width over its axial length whereby flow is throttled and speed of extrusion is controlled.
Patent GB-1081605-A (GB)
Title: Improvements in or relating to balance weights and their location on rotary bodies
IPC: F01D5/02
Filed: 1964-11-09
Abstract: 1,081,605. Balancing. M.A.N. TURBO G.m.b.H. Nov. 9, 1964 [Nov. 13, 1963], No. 45547/64. Heading F2U. [Also in Division F1] In an arrangement for balancing the rotor of a gas-turbine, compressor or blower, the rotor 1 has an annular dove-tail slot 2 in its end face within which is mounted a balanceweight in the form of a spring elasticallyexpandable member substantially corresponding in section to the section of the slot so that the weight can be sprung into tight contact with the side walls of the slot. The weight may be a spring steel stamping 3 having holes 6 for the reception of squeezing pliers during insertion or repositioning of the weight. A modified weight (3<SP>11</SP>), Figs. 4, 5 (not shown), is machined from the solid. The weight is inserted into the slot 2 through a widened portion of the slot.
Patent GB-1198745-A (GB)
Title: Improved Flame Spray Powder
IPC: C23C4/04
Filed: 1968-09-25
Abstract: 1,198,745. Flame spraying powder. METCO Inc. Sept. 25, 1968 [Sept.29, 1967], No. 45642/68. Heading C7F. [Also in Division C1] The individual particles of a flame spray powder are spheroidal and sized between 1Á and - 20 U.S. mesh and are formed of multiple sub-particles bound together without fusion and having a crush resistance of at least 0À7 gms. The powder can be a boride, carbide, cermet, alloy or their mixtures, a long list of examples being given, and a mild steel substrate exemplified.
Patent GB-1223136-A (GB)
Title: Improvements in or relating to refractory compositions
IPC: C04B35/03
Filed: 1968-09-26
Abstract: 1,223,136. Magnesia brick; magnesia powder. KAISER ALUMINUM & CHEMICAL CORP. 26 Sept., 1968 [16 Oct., 1967], No. 45841/68. Headings C1A and C1J. A brick making batch comprises, by weight, a major proportion of periclase grain retained on 100 Tyler mesh screen and a minor proportion of a bonding component which includes periclase grain passing a 100-mesh screen, 0À2 to 2% of an evanescent alkali metal or ammonium compound, e.g. NaOH or NaNO 3 , and 0.1 to 1% of finely divided silica. The silica can be volatilized silica added in an amount to brine the total lime: silica weight ratio in the batch to 1.87:1. The periclase used is natural or synthetic and contains at least 95% MgO and can contain an addition of chromium oxide. Lignin sulphonate can be added as a temporary binder. As a comparison bricks are prepared from a batch of periclase grain, lignin sulphonate binder and a sodium silicate of mole ratio 1:1.
Patent GB-1184793-A (GB)
Title: Improvements relating to Textile Drafting Apparatus
Inventor: MACKIE JOHN PRINGLE
IPC: D01H5/86
Filed: 1966-10-13
Abstract: 1,184,793. Drafting aprons. JAMES MACKIE & SONS Ltd. 4 Oct., 1967 [13 Oct., 1966], No. 45864/66. Addition to 993,844. Heading D1D. The rigid support 4 which is grooved at 8 along the line of the fibrous material to be drafted is formed on one or both sides of the groove with one or more transverse slots 12 in its apron engaging surface. The sharp edges of the open ended slots exert a scraping action on the apron to remove dirt. The corners 15 are rounded to reduce the frictional drag. The slots may be at right angles or inclined slightly to the direction of movement of the apron.
Patent GB-1454213-A (GB)
Title: Sealing device for a casting ladle
IPC: C21C7/10
Filed: 1974-10-28
Abstract: 1454213 Sealing device for a casting ladle FRIED KRUPP HUTTENWERKE AG 24 Oct 1974 [2 Nov 1973 11 Sept 1974] 46459/74 Heading F4B In a casting ladle 1 in which molten metal is degassed under vacuum the discharge nozzle 7 is closed by a sliding gate 10 or a stopper rod and is sealed from the outside by a destructable, vacuum-tight film 3 which is clamped between concentric rings 12, 13 attached to the laddle base 11 by a ring 11a. A gas-pervious support box 14, e.g. a light metal grid, serves as a spacer so that the film 3 is not damaged by the sliding nozzle. In a further embodiment the sealing film may be clamped between the lower end of the discharge nozzle and the fixed head plate (5), of a sliding nozzle (4) Fig. 3 (not shown). The sealing film is protected by filling the nozzle with sand. To pour the molten metal the gate is opened and the sealing film is destroyed by heat or ruptured mechanically.
Patent GB-996249-A (GB)
Title: Flame-resistant polyolefin composition
IPC: C08K5/14
Filed: 1962-12-10
Abstract: A flame-resistant, heat-curable polyolefin composition comprises a polyolefin, a chlorinated polyolefin and a peroxide curing agent containing <FORM:0996249/C3/1> e.g. di-(alpha-cumyl) peroxide or 2,5-dimethyl-2,5 - di - (t - butyl - peroxy) hexane or hexyne-3. Optional ingredients are fillers (clay, aluminium oleate coated clay or carbon black), stabilizers (lead, magnesium or zinc oxide or a polymerized trimethyl-di-hydroquinoline), and other conventional additives such as antimony oxide, calcium stearate or maleic anhydride. The products find application as cable insulation.
Patent GB-1104370-A (GB)
Title: A pin-setting machine for free-standing bowling pins
IPC: A63D5/08
Filed: 1965-11-03
Abstract: 1,104,370. Bowling alleys. H. LINNEMANN. 3 Nov., 1965 [3 Nov., 1964], No. 46664/65. Heading A6D. A bowling alley installation appropriate to the game of pin bowling comprises means for separating spent king pins from the remaining spent pins and for spotting them separately on the playing deck of the alley. All spent pins and bowls are swept from the playing deck 1 by sweeper mechanisms 3 on to conveyor 4 which is downwardly inclined opposite the conveying direction 18 to a bowl delivery opening 19 in the wall of the bin for the collection of bowls swept onto the conveyor and which transfers the pins via conveyor 6, and a device 8 for standing the pins in a vertical position, to a further conveyor 9 having two branches 34, 35, the section 36 of the conveyor being automatically tilted by a king pin to transfer the latter on to branch 35, whilst other pins travel along branch 34. The tilting can be effected mechanically or electrically, and is initiated by the larger king pins operating a switch or trip mechanism which is by-passed by the remaining, smaller pins. The two groups of pins are then elevated to separate stores 13, 14, from whence they are transferred by tiltable sections 43 to distributor conveyors 15 into pin setter mechanism 16 for setting in any desired formation on the pin location area.
Patent GB-470446-A (GB)
IPC: D01H5/88
Filed: 1936-11-20
Abstract: 470,446. Guides for belts of drawing- mechanism for rovings. CASABLANCAS, F. Nov. 20, 1936, No. 31862. Convention date, Dec. 13, 1935. Addition to 309,905, [Class 120 (ii)]. [Class 120 (ii)] The U-shaped guides for the belts of drawing - mechanism for rovings described in the parent Specification, and the side plates of the supporting frame, are shaped so that the lower of the two branches 9, 10, which are of flat formation converging towards each other, is supported by the side plates at the front and rear portions of its lower face, and is engaged by a stop whereby forward tilting is prevented. As shown in Fig. 5, the side plates are formed with recesses 13 which support the front and rear bottom edges of the arm 9 and by the projection 16 engage the upper surface, projections 14 being provided, if desired, to engage the upper limb 10. As shown in Fig. 9, the projections 16 are arranged to prevent forward displacement. Recesses 11 in an inclined edge 12 of the guides are adapted to engage the side plates to prevent lateral displacement. The limbs may be provided with flanges 19, Fig. 6, so that the pressure of the belts is increased, the span of the limbs remaining the same.