baber/WOPTO huggingface dataset:
Patent GB-872761-A (GB)
Title: A refractory batch composition and an article made therefrom
IPC: C04B28/06
Filed: 1959-07-14
Abstract: A composition for making insulating refractories comprises by weight 10% to 25% of expanded pearlite, 40% to 75% crude kyanite and 15% to 40% of a calcium aluminate cement, the kyanite having the following composition:- Fe2O3 + TiO2 not more than 2,5%, SiO2 not more than 48%, Al2O3 balance, but at least 50%.  The pearlite contains at least 65% SiO2 and at least 10% Al2O3 with a particle size of minus 6 mesh Tyler and not more than 10% minus 100 mesh.  The cement binder preferably has a CaO to Al2O3 ratio of at least 1 : 1, contains not more than 3% Fe2O3 and is minus 100 mesh.  The powders are mixed with 20% to 65% by weight of water and the mixture may be cast, poured or trowelled followed by air curing and then drying at 200 DEG F to 300 DEG F.
Patent GB-1179443-A (GB)
Title: Purification of Crude Phthalic Anhydride by Thermal Treatment
IPC: C07C51/573
Filed: 1967-05-24
Abstract: 1,179,443. Purification of phthalic anhydride. BADISCHE ANILIN- & SODA-FABRIK A.G. 24 May, 1967 [25 May, 1966], No. 24139/67. Heading C2C. Crude phthalic anhydride is purified by treatment at temperatures of from 190 to 275 C. in a cascade of at least 2 stirred vessels, a temperature above 230 C. being maintained in at least one vessel and each vessel having a temperature equal to, or up to 40 C. higher than, that of the preceding vessel. In examples the process is applied to crude phthalic anhydride obtained by oxidation of naphthalene and o-xylene.
Patent GB-834432-A (GB)
Title: Improvements applicable to gas-operated lighters having a detachable reservoir
IPC: F23Q2/16
Filed: 1956-08-07
Abstract: 834,432. Gas operated cigarette lighters. SOC. D'ETUDES ET DE RECHERCHES TECHNIQUES. Aug. 7,1956 [Aug. 6, 1955], No. 24210/56. Class 75(3) In a gas operated flint lighter comprising a control unit detachable from a reservoir provided with a valved burner and a lever, one end of which engages a valve operating part of the burner for opening the valve therein a flint tube on the one hand determines the position, the control unit occupies on the reservoir and on the other hand passes through an opening in the lever to limit a disengaging movement of the lever from the valved burner when the reservoir is to be removed or serves as a pivotal axis for the lever in the disengaging movement. In the arrangement shown in Figs. 1 and 3 the lever 17 is provided with a slot 22 engaged about the upper end of the flint tube 3 and is moved from the stop 18 engaging position to the inoperative position, Fig. 3, by lugs 23 extending through the sides of the control unit A. The lever 17 is held in the two extreme positions by a spring 24. In the arrangement shown in Fig. 7, the control unit-A and the lever 17 are pivoted horizontally about the flint tube 3 to disengage a slot in the side of the lever 17 from the burner 1. The reservoir B is held against the control unit A by a flanged nut 5 on the bottom of the flint tube 3 and a casing C is slid over the reservoir B into engagement with the control unit A.
Patent GB-1041567-A (GB)
Title: Improvements in and relating to liquid heaters and radiators and to heating installations
Inventor: CARR FREDERICK
IPC: F24H3/00
Filed: 1962-06-23
Abstract: 1,041,567. Pipe joints. SERVOTOMIC Ltd. June 21, 1963 [June 23, 1962], Nos. 24237/62 and 24238/62. Heading F2G. [Also in Division F4] The liquid-filled, parallel, double-walled panels 20 and 21 of a combined liquid heater and radiator are connected so that the interiors of the panels remain in communication when one panel is moved relative to the other. In Fig. 4, communication is through a hinge between the panels, the bores 24, 25, 30 and 29 in the blocks 23 and 28 connecting the two interiors and the blocks being connected by sleeve 26 with ring seal 31 so they are pivotable about a vertical axis. Alternatively as in Fig. 7 (not shown), a bellows type expansible coupling 72 between stub pipes 73 connects the interiors. Alternatively again, as in Fig. 8 (not shown), a telescoping swing joint comprises a curved pipe 75 within curved pipe 74, the ends of which are connected by rolling diaphragm 76.
Patent GB-682392-A (GB)
Title: Improvements relating to thermal diffusion columns for separating components of mixtures of condensable vapours
Inventor: KENDALL JAMES TYLDESLEY
IPC: C01G33/00
Filed: 1949-09-21
Abstract: <PICT:0682392/III/1> Volatilizable liquid mixtures are separated into their components by means of a thermal diffusion column comprising two vertical surfaces enclosing a space and maintained at different temperatures and a chamber communicating with the column space in which a liquid mixture is heated to a temperature sufficient to give a suitable vapour pressure in the column.  As shown, the hotter surface is formed by a wire 2 heated electrically and passing down the centre of a tube 1 forming the other surface and a chamber 4 for liquid, heated by a bath 7, communicates with the column through a side tube 31.  Lighter molecules in general tend to concentrate at the hotter surface and heavier molecules at the colder surface, this horizontal separation being supplemented by vertical convection currents leading to a vertical separation, the lighter molecules in general concentrating at the top of the column.  Here they may be condensed in a second receiving chamber 14 maintained at a lower temperature than the chamber 4.  If it is desired to condense a different component the chambers 4 and 14 will be differently located.  The chamber 14 may be isolated from the column by a cock 13 and the collected liquid extracted via tube 17 by distillation. Instead of condensing one component in a receiving chamber it may be collected as vapour in a gas-holder, Fig. 1 (not shown).  The separation of water containing the oxygen 18-isotope from ordinary water, of zirconium halides from hafnium halides, of tantalum halides from niobium halides and of masurium (techonetium) halides from other substances is referred to.  An additional gas, e.g. chlorine in the case of the separation of zirconium and hafnium chlorides, may be present in the column to prevent dissociation of the vapours.
Patent GB-1009763-A (GB)
Title: Circuit for maintaining constant the central frequency of a frequency modulated oscillator
IPC: H03C3/09
Filed: 1962-06-25
Abstract: 1,009,763. Automatic frequency control systems. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST - NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. June 25, 1962 [June 26, 1961], No. 24346/62. Drawings to Specification. Heading H3A. The centre frequency of a frequency modulated oscillator is stabilized by a frequency discrimator, with piezo-electric crystal, of pass-band about 2 kc./s. and to avoid more than one zero output of the discriminator the modulation input is applied over a high-pass filter to set an upper limit to the modulation index. A third harmonic of the crystal may be used. The discriminator output may be applied in push-pull to one winding of a ferrite modulator to another winding of which the modulation is applied over the high-pass filter, a control coil of the ferrite modulator being therefore variably magnetized and, being in shunt with part of the coil inductance of the oscillator, controlling its frequency.
Patent GB-1533372-A (GB)
Title: Television receivers
IPC: H04N5/445
Filed: 1977-06-10
Abstract: 1533372 Television receiving apparatus SONY CORP 10 June 1977 [11 June 1976 (2)] 24393/77 Heading H3Q  In a TV receiver for selectively reproducing an image derived from a broadcast television signal or an external video signal including a channel selector 3 supplying a tuning signal to a controlled reactance 20 of a tuner 2 and a video detector 5 coupled to the tuner and producing a video signal at an output t out  thereof, a bistable flip-flop 11 controls a gate circuit 81, 82 in response to a mode control switch 12 so as to select one video signal from the video signal output terminal t out  or an external video signal input terminal t in . As shown the external video signal is from a video tape recorder VTR 9. When power supply switch 13 is closed a resistor 113 and a capacitor 114 set the flipflop 11 so that gate 81 connects the received video signal (TV) to the TV tube. The VTR or TV mode is selected by operation of a push button or touch responsive switch (120, Fig. 4, not shown) operating the switch 12. Neon lamps 141, 142 indicate at (121, 122) the mode selected. In a modification (Fig. 5, not shown) a switch 14 selects either TV signal reception in position a or in position b TV/VTR mode of operation. The signal to trigger the flip-flop may be obtained from a remote control device. The channel selector 3 includes push button or touch switches (301, 302, Fig. 1, not shown) and a counter 32 to select preset tuning potentiometers (321, 322). Specification 1,533,371 is referred to.
Patent GB-1021330-A (GB)
Title: Improvement to electrically insulating connections for metallic piping
IPC: F16L25/01
Filed: 1964-06-12
Abstract: 1,021,330. Pipe couplings. L. BAGNULO. June 12, 1964 [July 25, 1963], No. 24463/64. Addition to 842,233. Heading F2G. A modification of the electrically insulating connection described in the parent Specification comprises an outer tubular flanged member 10 having a coaxial annular cavity 19, a second tubular member 11 having an annular flange 15, the two members fitting together as shown and not in contact, a seal gasket 22 of an elastic and electro-insulating material, interposed between the annular flange 15 and the bottom of the cavity, a ring 26 made integral with the flange of member 10 after the spaces between the two members have been filled, and a filling of a polymerizable and hardening plastics material filling all the empty spaces between the two members, and a lining at electrically insulating material applied on all or part of the internal wall of the second tubular member. The outer surface of the tubular member 11 and the inner surface of member 10 may be serrated to afford a better grip for the plastics material. Electrically insulating spacers 30 may be introduced in the spaces around member 11. The flange member 10 may have bores 19 to receive bolts and the end face of the coupling may be part circular in section to join in T-section to a further pipe (Fig. 2, not shown).
Patent GB-291069-A (GB)
Title: Improvements in electric starters for engines
IPC: F02N15/02
Filed: 1927-09-16
Abstract: 291,069. Scintilla Akt.-Ges. May 28, 1927, [Convention date]. Turning-gear.-In an electric starter for motorvehicle engines in which the starter pinion 1 has a screw-threaded spindle 2 in engagement with a threaded sleeve 3 within the hollow shaft of the armature and resilient. means such as a spring 8 takes up the shock when the pinion teeth clash with those of the engine flywheel at starting, the drive is transmitted from the armature shaft to the pinion through the spring 8 and a laminated friction coupling 4. When the teeth clash, the sleeve 3 moves backwards on the spindle 2, compressing a spring 7, until the spring 8 encounters a stop nut 9 on the spindle 2. The pinion is then rotated until its teeth are in position to mesh with those of the flywheel, when the sleeve 3 and the pinion are moved axially by the spring 7. If the engine turns backwards at starting, the shock is taken up by the spring 8 before the coupling 4 comes into play.
Patent GB-854477-A (GB)
Title: Improvements in or relating to junction transistor devices and to methods of making them
IPC: H01L21/00
Filed: 1959-07-16
Abstract: 854,477. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. July 16, 1959 [July 17, 1958], No. 24470/59. Class 37 In a transistor intended for rapid switching from a low to a high impedance state, carrier storage is reduced by utilizing low lifetime material the region of the collector junction adjacent the base electrode while maintaining a high alpha by using high lifetime material in the region of the junction adjacent the emitter. Fig. I shows a transistor whose bulk portion 11 of N type conductivity serves as the collector zone. A mesa portion 12 of p type conductivity serves as the base zone and the collector junction separates these zones. The emitter zone 13 is constituted by N type material and is linear extending perpendicular to the plane of the drawing. The emitter electrode 16 if of gold antimony extends for a large portion of the emitter zone. Base electrode 14 of aluminium makes a low resistance correction with the right hand half of the base zone. In order to reduce the lifetime of the material in the base region a lead shield was adjusted over the area adjacent the emitter and the base region was irradiated with 8, 1014 electrons/cm.2 of about À75 million electron volts energy. A large array which was afterwards broken into 100 individual units was irradiated at once. The Specification also suggests that the lifetime in the region may be reduced by the introduction of a local impurity e.g. copper in germanium and iron or gold in silicon. The introduction may be from an evaporated surface layer. It is flexible to begin with material of low lifetime throughout and to increase the lifetime by gettering the impurity in the selected region, e.g. lead is known to get the copper as in germanium and nickel to get the gold in silicon. Figs. 2A and 2B show a transistor in which the collector zone is of keyhole shape. The lifetime of the material between the P type emitter 32 and the wide part of the collector is high while that between the base electrode 34 and the narrow part is low. Specification 809,642 is referred to.
Patent GB-313868-A (GB)
Title: Improvements in opening cases for watches or like articles
IPC: G04B37/04
Filed: 1928-08-25
Abstract: 313,868. Verger Freres. June 18, 1928, [Convention date]. Lids; opening arrangements. -A case for a watch or the like has hinged flaps adapted to be opened by pressure exerted on the end parts of the case. The body of the case is a flattened tube 1 in which slide end parts 2. By pressing on the latter against the action of springs 3 toothed sectors pivoted as at 7 are rotated by the internal ends 5a of studs 5 screwed into blocks 4 secured to the parts 2. The sectors 6 engage with other sectors 9 secured to the hinged flaps 10, causing these to open and display the contents. When the case is used for a watch, the latter may be hinged as at 12 in such a manner that it can be raised and fixed in an inclined position.
Patent GB-269403-A (GB)
Title: Improvements in and relating to safety bumpers for motor road vehicles
IPC: B60R21/34
Filed: 1926-10-04
Abstract: 269,403. Johnson, A. Oct. 4, 1926. Wheel-guards, obstruction-removers, and safety appliances.-A safety device for motorcars comprises a curtain 12 adapted to fold up into a channel-shaped member 10 where it is held by a catch 34 adapted to be actuated either automatically through a bumper bar 30 or by a foot pedal 49 to release the curtain. The bottom of the curtain is attached to a shoe 16 connected to arms 20, 21 pivoted on a transverse bar 19 provided with a lever 22 which is connected to a tension spring 25. In the raised position of the curtain, the shoe closes the open end of the channel and the shoe closes the catch 34 on a bell-crank lever 32 which is connected at the opposite end to a pivoted lever 28 to which one end of the bumper bar 30 is secured. A similar bell crank connects the other end of the bumper bar and both bell cranks are connected by longitudinal rods 35 which slide in guides 7 against the compression of springs 47 mounted on extension rods 43 to crank arms 41 on a transverse bar 38. One of the crank arms 41 is extended to provide a foot pedal 49 which has a notch 51 which is engaged by a spring catch 50 in the set position of the guard, the catch being released by a foot lever 54 when the guard is to be operated non-automatically.
Patent GB-330184-A (GB)
Title: Improvements in or relating to the control of motor vehicles, aircraft and the like
IPC: B60W30/18
Filed: 1929-08-10
Abstract: 330,184. Kenyon, C. H. Aug. 10, 1929. Controlling-apparatus, arrangements of hand and foot gear in conjunction with; controlling- levers associated with hand-steering devices.-In order to enable the accelerator or other pedal of a motor vehicle or aeroplane to be actuated by hand a ring k or like hand-grip situated below the steering hand-wheel b is pivoted at n to a fixed bracket c and has an arm m adapted to engage a lever h pivoted at j to the bracket, the inner end of this lever being pivotally connected to a thrust rod f attached to the pedal e. Thus when the ring k is pressed upwards the rod f is depressed and the pedal operated. When the ring is released the return spring of the pedal raises the rod f and the ring falls until it is retained by a stop o. An adjusting screw p forms the contact between the arm m and the lever h. The invention may be used in conjunction with the controlling apparatus described in Specification 321,345.
Patent GB-1279066-A (GB)
Title: Improvements in and relating to compositions based on perchloroethylene
IPC: C07C17/42
Filed: 1971-04-19
Abstract: 1279066 Stabilization of perchloroethylene SINCAT SOC INDUSTRIALE CATANESE SpA 19 April 1971 [18 March 1970] 24591/71 Heading C2C [Also in Division C5] Perchloroethylene is stabilized with a mixture of (a) 3-methylpent-1-yn-3-ol, (b) an epichlorohydrin or diepoxybutane and (c) a phenol. The phenol may be p-cresol, p-tert.-amylphenol or p-methoxyphenol.
Patent GB-1382490-A (GB)
Title: Ionically crosslinked mixtures of ethylene copolymers and bituminous  substances
IPC: C08L95/00
Filed: 1972-05-25
Abstract: 1382490 Bituminous composition BADISCHE ANILIN- & SODA-FABRIK AG 25 May 1972 [26 May 1971] 24604/72 Headings C3N and C3P An ionically cross-linked mixture comprises: (A) 1-100 parts by weight of an ethylene copolymer containing, as polymerized units, 60-99À5% by weight of ethylene, 0À5-40% by weight of an ethylenically unsaturated carboxylic acid, and optionally 0À5-39À5% by weight of one or more comonomers, the sum of the percentages being 100 in each case; (B) 1-100 parts by weight of a bituminous substance which has a penetration at 25‹ C. of 0À1-300 according to DIN 1995; and (c) 1-50 parts by weight of at least one neutral or basic metal naphthenate, naphthenesulphonate and/or sulphonate. The mixture may also contain filler, dye or pigment, and a further polymer. Specific examples disclose mixtures of (i) an ethylene/ acrylic acid copolymer with (a) albino bitumen and either basic calcium naphthenate and optionally TiO 2  (1) or calcium dodecylbenzenesulphonate (4) or (b) distillation bitumen and basic calcium naphthenate (3); (ii) a waxy ethylene/acrylic acid copolymer with albino bitumen and calcium dodecylbenzenesulphonate (6); (iii) an ethylene-acrylic acid/n-butyl acrylate copolymer with (a) distillation bitumen and any one of sodium/dibutylnaphthalenesulphonate (5), potassium naphthenate (10), zinc naphthenate (11), magnesium naphthenate (12), aluminium naphthenate (13), and neutral calcium naphthenate (14); or (b) sulphate. pitch and basic calcium naphthenate and optionally iron oxide or chalk (2); (iv) a copolymer of ethylene/ t.-butyl acrylate/acrylic acid/isobutylene with pale bitumen, a mixture of basic calcium naphthenate and calcium naphthenesulphonate, and gypsum (7, 8, 9); and (v) a copolymer of ethylene and methacrylic acid together with a sulphate pitch and sodium ethylpropylnaphthalenesulphonate (15). The composition of Example 5 may also contain polyisobutylene, and rubber whilst that of Example 9 may be blended with polyethylene, copolymers of ethylene with acrylic esters or vinyl esters, polyisobutylene, atactic polypropylene, polyvinyl isobutyl ether, natural rubber and synthetic rubber.
Patent GB-185641-A (GB)
Title: Improvements in drawing pens
IPC: B43K17/00
Filed: 1921-09-16
Abstract: 185,641. Berg, J. R., (trading as Harling, W. H.). Sept. 16, 1921. Ruling-pens.-The separation of the nibs is adjusted by a set-screw engaging one of the nibs and bearing at its inner end against the inner face of the other nib, means being provided for pressing the nibs together. Figs. 2 and 4 show a pen having a fixed nib a and a hinged nib b, the set-screw d engaging the nib band bearing against the inner face of the nib a. The nibs are urged together by a spring catch h passing through a hole in the nib a and having an upturned end engaging a hole j in the nib b. The screw d is frictionally held in adjusted position by a spring nut e in the form of a split plate attached to the nib b and having a threaded aperture in which the screw engages. In a modification the spring h is replaced by a semicircular spring strip embracing the nibs and carried on an arm hinged to the pen at the root of the nibs, while in a further modification it is replaced by a sliding sleeve or screw ring engaging corresponding surfaces on the roots of the nibs.
Patent GB-1349212-A (GB)
Title: Optical waveguides
Inventor: MARCATILI E A J
IPC: G02B6/02
Filed: 1972-05-25
Abstract: 1349212 Light guides WESTERN ELECTRIC CO Inc 25 May 1972 [28 May 1971] 24676/72 Heading G2J A light guide has a dielectric core 30 having a substantially polygonal cross-section disposed within a jacket 31 of substantially circular internal cross-section, contact between the core and jacket occurring only at curves of the polygon. The jacket may be larger than required to just fit round the core so that contact only occurs at two curves of the polygon Fig. 4, (not shown). One or more sides of the polygon may be curved Fig. 5, (not shown).
Patent GB-816239-A (GB)
Title: Veterinary compositions containing antibiotics
IPC: A61K31/43
Filed: 1956-08-13
Abstract: Veterinary compositions which are non-aqueous creams or pastes suitable for intramammary injection, comprise a suspension of penicillin and/or streptomycin in admixture with a suitable dispersing agent and not less than 30 per cent by weight of a suitable mineral oil.  The penicillin may be a natural penicillin, e.g. penicillin G, or a synthetic penicillin, e.g. penicillin V, optionally in the form of a salt thereof, e.g. the sodium, calcium, potassium or procaine salt.  The streptomycin may be present as such or as dihydrostreptomycin, optionally in the form of a salt thereof, e.g. sulphate or hydrochloride, or as a complex thereof, e.g. with calcium chloride.  The mineral oil is defined as being mixtures of hydrocarbon oils, e.g. liquid and light liquid paraffin or petroleum jellies, which may be thickened by the addition of white or yellow soft paraffins, or aluminium palmitate.  The dispersing agent is defined as having a hydrophilic-lipophilic balance of between 9.5 and 10.5 and may be a partial ester of the common fatty acids, e.g. lauric, palmitic, stearic or oleic acid, and hexital anhydrides, e.g. hexitans or hexides derived from sorbitol, the corresponding condensation product of these partial esters with ethylene oxide, or mixtures thereof, polyoxyethylene sorbitan monostearate, tristearate, mono-oleate, pentalaurate, hexa-oleate, polyoxyethylene lauryl alcohol, polyoxyethylene cetyl alcohol, or polyoxyethylene sorbitol laurate, or mixtures thereof.  The dispersing agent may be present between 0.5 and 10 per cent by weight of the composition.