baber/WOPTO huggingface dataset:
Patent GB-1516301-A (GB)
Title: Spark ignition systems for internal combustion engines
IPC: F02P9/00
Filed: 1975-06-09
Abstract: 1516301 Ignition systems; regulating IC engines LUCAS ELECTRICAL Ltd 9 June 1975 [7 June 1974] 25301/74 Heading F1B A spark ignition system for I.C. engines includes means for inhibiting spark production when the engine temperature is above a predetermined value, irrespective of engine speed. As described, a pick-up 44 produces a pulsed output at a frequency proportional to engine speed, and spark control means connected to the pick-up includes spark inhibiting means operable when the pulse frequency exceeds a set value, said means including a thermistor 2 responsive to engine cooling water temperature to determine the set value so that it decreases with increasing engine temperature. A capacitor 5 is charged through a charging path including the thermistor 2 to a voltage dependent on the pulse frequency so that, should the temperature exceed a predetermined value, the capacitor cannot be charged to a sufficient value to operate the spark control, and no spark will be produced whatever the engine speed.
Patent GB-1505069-A (GB)
Title: Oil-in-water emulsions with bacteriaresistance
IPC: A01N25/04
Filed: 1974-06-07
Abstract: 1505069 Bactericidal concentrate EXXON RESEARCH & ENG CO 4 June 1975 [7 June 1974] 25341/74 Heading A5E [Also in Division C5] A bactericidal additive concentrate for use in a metal-working composition, a corrosioninhibiting composition or an hydraulic oil; comprises 99.75 wt. % to 95 wt. % of a vehicle which is a mineral oil (e.g. napthenic) optionally containing one or more components selected from known emulsifiers, solubilizers, extreme-pressure additives and corrosion inhibitors, and 0.25 wt. % to 5.0 wt. % in total of at least one water-soluble bactericide (A) and at least one oil-soluble, substantially waterinsoluble, bactericide (B), the weight ratio of total (B) being greater than 1:1 but less than 20:1. Bactericide (A) may be a compound that releases formaldehyde e.g. a 1, 3, 5-trialkyl or trihydroxyalkyl hexahydro-S-triazine, or a mixture of benzyl alcohol and chloral formamide. Other bactericides (A) specified are the non-formaldehyde-releasers, for example, 1, 2-benzisothiazolone; a 6-acetoxy-2, 4 dialkyl-m-dioxane, especially the dimethyl and diethyl compounds; 2-methyl 4-isothiazoline-3-one and/or 5-chloro 2-methyl 4-isothiazoline-3-one; sodium salt of 2-pyridine-N-oxide thione; and 12-mercapto-pyridine or the alkali metal or ammonium salt thereof. Bactericide (B) may be a phenolic compound, e.g. 2-phenyl phenol, o-benzylparachloro phenol, chloro 2-phenyl phenol, laurylpentachlorophenol, or a chlorocresol.
Patent GB-224352-A (GB)
Title: Improvements in or relating to machines for spinning artificial silk
IPC: D01D7/00
Filed: 1923-10-11
Abstract: 224,352. Donagemma, G., Tolini, P., Valentini, M., and Micozzi, E. Oct. 11, 1923. Apparatus for making filaments.-In a machine for winding artificial silk in which the spun threads are washed in acid whilst being wound on bobbins, the bobbins are arranged in couples and have their axes disposed normally one above the other, the upper bobbin being inoperative and the lower bobbin being immersed in the acid basin. Each pair of bobbins is carried on a beam e rotatably mounted on a standard, and integral with each bobbin support is a helical toothed wheel f which, when the bobbin is in the lower operative position, is driven by a continuously rotating gear-wheel g. During winding the threads pass from the drawing plate r through a reciprocating thread-guide i to the bottom bobbin. When the said bobbin is full the beams e are locked to the supports, each beam is rotated through 180 and the thread contacting with the empty bobbin at the bottom is automatically broken and winds thereon. When desired both bobbins can be placed out of contact with the acid by rotating the beam e through 90. The acid basins are filled and discharged from several points, gases generated in the upper basins being removed through a receiver q and pipes p to a collector n, the gases from the lower basin being sucked up into a pipe m and passing thence to the collector n, whence they are carried outside. Fresh air is distributed along the machine through apertures in a conduit o.
Patent GB-594087-A (GB)
Title: Improvements in doctor blade mechanism for rotary intaglio printing machines
IPC: B41F9/10
Filed: 1944-12-19
Abstract: 594,087. Rotary intaglio-printing-machines. HOE & CO., Ltd., R., and BENNISON, W. E. Dec. 19, 1944, No. 25435. [Class 100 (ii)] Inking-apparatus.-A rotary intaglio webprinting machine comprises a doctor blade 4 carried by a holder 10 supported by pairs of pivoted arms 20, 21, of different effective lengths and with the shorter arm 21 remote from a printing-cylinder 1 and so disposed as to rock the holder 10 about the longer arm 20 to constrain the holder in moving away from the cylinder 1 to carry the tip of the blade in a direction to clear the path of a web W as it passes to the cylinder. The holder 10 is carried by arms 17 supported by the arms 20, 21, which are pivoted at 22, 23, the central arm having a handle 21<1> whereby the holder can be moved away from the cylinder for cleaning &c. against the action of a coil spring on the shaft 22, the tip of the blade moving in a path L whereby damage to the web is avoided. A pawl 30 on the link 21 engaging a stationary disc 32 retains the holder in the withdrawn position, and, on release, engages a notch 33 to stop the blade when near the cylinder, so as to prevent damage by impact : the pawl has to be released to allow the final movement. The linkage is carried by a reciprocatable slide 30 whereby the blade may be reciprocated longitudinally. The holder 10 is capable of angular adjustment about a pivot 13 on arcuate slides 11 adjustable along arcuate guides 12 concentric with the cylinder 1, by means of a rack 15 and pinion 14. Pawls 16 prevent the slides from dropping down the guides; and bolts 16<1> are provided for locking the slides in adjusted positions. Each slide is independently adjustable so that the blade 4 can be adjusted at separate zones along its length. The side wall 7 of an ink fountain 3 extends upwardly and carries a pivoted flap 8 bearing against a plate 9 clamping the blade 4 in its holder. The wall 7 is adjustable by means of a rack 39 and pinion 39 to follow the peripheral adjustment of the doctor. The blade holder is in two parts 10<1>, 10<2>, Fig. 6, normally separated by a spring 43 and clamped together by a jaw 42 operated by a screw 44. Fig. 7 (not shown) shows an alternative construction in 'which the jaw slides in a bore in the member 10<2> and is screwed to receive a clamping-nut. Specification 532,875 is referred to.
Patent GB-183386-A (GB)
Title: Improvements in and relating to padlocks and like portable locks
IPC: E05B37/02
Filed: 1921-09-26
Abstract: 183,386. Donovan, A. Sept. 26, 1921. Padlocks; locks, cases for; locks, operating registering-apparatus.-A padlock is constructed to indicate the time at which it is secured. The casing is made in two cylindrical parts 1, 2 adapted to fit together, and secured by permutation rings 15 on the member 2 engaging with a notched feather F on the member 1. The shackle 4 slides in a bearing 5 on the member 1 and carries a blade spring 14 at its end, and is locked by a spring catch 9 pivoted to the base-plate 7 of the member 1. When the shackle is secured by the catch 9, and the member 2 fitted to the member 1 and locked thereto, the spring 14 depresses a second blade spring 12 mounted on the back 11 of a watch 10 fitted into the member 2, causing a finger 13 on the spring 12 to stop the watch, indicating the time of securing the padlock, the hands of the watch being visible at the outer end of the member 2. To release the padlock, the members 1, 2 are separated by setting the correct combination and the catch 9 released to free the shackle. The watch is made of non-magnetic material or guarded against retardation by means of a magnet. A ball 16 is held in the lock by a thin filament 17 so that any attempt to retard the watch by shaking before the shackle is pressed home and locked, is detected when the lock is opened by the broken filament and free ball. One of the Provisional Specifications states that the rings 15 are duplex for changing the combination.
Patent GB-312984-A (GB)
Title: Improvements in or relating to carpet sweepers
IPC: A47L11/33
Filed: 1928-09-05
Abstract: 312,984. Bissell Carpet Sweeper Co., (Assignees of Pullen, F. W.). June 4, 1928, [Convention date]. Carpet - sweepers. - The floor wheels are mounted on spring axles 21 connected at the centre to a bracket 22, the axles tending to press the floor wheels against the brush pulleys. The brush shaft is mounted at each end on a pivot 32 which is carried by a member 9 adapted to slide in a vertical guideway 42 formed in an end bar 4. The pivot 32 is embraced by the slotted inner end of levers 7 which are pivoted centrally on pivots 8 secured to the end bar, the outer ends of the levers being journalled in the hubs of the floor wheels.
Patent GB-368233-A (GB)
Title: A device for obtaining a stereoscopic effect
IPC: G02B27/22
Filed: 1930-08-27
Abstract: 368,233. Stereoscopic apparatus. WYLD, F. LEHNHOFF-, 8, Avenue Eugenie, St. Cloud, Seine-et-Oise, France. Aug. 27, 1930, No. 25608. Convention date, Dec. 28, 1929. Void [Published under Sect. 91 of the Acts]. [Class 97 (i).] A device for the production of a stereoscopic effect which is stated to be based upon the properties of polarised light comprises a system of plane mirrors and " glasses," such as two plane mirrors arranged substantially at right-angles, or as shown by a mirror B, a plate V which may carry the object A or which for kinematography may be a ground glass screen on to which the object is projected and a plate D preferably made bi-refringent by compression when casting.
Patent GB-1122934-A (GB)
Title: New 2,3-di-(hydroxyaryl)-benzoquinoxaline dyestuffs and processes for their manufacture and use
IPC: C09B17/00
Filed: 1967-06-02
Abstract: The invention comprises compounds of the formula <FORM:1122934/C4-C5/1> where R represent a naphthalene residue and A and B represent aryl residues in which the hydroxy groups are ortho to an azomethine group.  The compounds are prepared either by reacting an ortho-diaminonaphthalene with a idketone of the formula <FORM:1122934/C4-C5/2> or by reacting a dihalogenated quinoxaline of the formula <FORM:1122934/C4-C5/3> with 2 mols of an hydroxyaryl compound or with 1 mol each of two different hydroxyaryl compounds in the presence of a Friedel-Crafts catalyst.
Patent GB-1333361-A (GB)
Title: Powder coating compositions
IPC: C08F220/00
Filed: 1972-06-01
Abstract: 1333361 Powder coating compositions; unsaturated acid copolymers FORD MOTOR CO Ltd 1 June 1972 [16 Aug 1971] 25648/72 Headings C3B and C3P [Also in Division B2] A powder coating composition comprises: (I) a copolymer of 3-10% by wt. of an α,#- ethylenically unsaturated carboxylic acid and the balance other ethylenically unsaturated monomers; (II) a cross-linking agent which is an epoxy resin, e.g. present so as to provide 0À8-1À1 epoxy groups per carboxyl group of I; (III) a flow control agent which is a polymer having a number average M.W. of at least 1000 and glass transition temp. at least 50 C. below that of I. I may be a copolymer 3-10% by wt. of acrylic or methacrylic acid; 0-35% of styrene α-methylstyrene, acrylonitrile or methacrylonitrile; and 97-55% of methyl or butyl methacrylate or ethyl, butyl or 2-ethylhexyl acrylate. II may be a diglycidyl ether of bisphenol A or of butane diol. III may be polylauryl acrylate or methacrylate, polybutyl acrylate or methacrylate or poly(2-ethylhexyl) acrylate or methacrylate. Esters of fluorinated fatty acids with polyalkylene glycols are also suitable III. The composition may comprise a catalyst, e.g. a quaternary ammonium compound. From 6-35% by wt. of a pigment and from 0À05-1À0% of an antistatic agent may additionally be present. Examples relate to the coating of a variety of metal substrates.
Patent GB-994184-A (GB)
Title: Improvements in or relating to propellent grains
Inventor: RUMBEL KEITH ELLIS
IPC: F02K9/26
Filed: 1961-07-15
Abstract: In a propellent grain having embedded therein one or more elongated heat-conducting units (see Division F3), the propellent may be plastic and comprise (a) polyvinyl chloride, dibutyl sebacate, and ammonium nitrate or perchlorate; copper chromite may be added as a burning catalyst; (b) nitrocellulose, nitroglycerine, diethyl phthalate, 2-nitrodiphenylamine, and candelilla wax; (c) finely-divided ammonium, sodium, or potassium perchlorate or nitrate, or barium peroxide, dispersed in a liquid fuel, e.g. triethyl benzene, dodecane, liquid polyisobutylene, dimethyl maleate, diethyl phthalate, dibutyl oxalate, benzyl alcohol, triethylene glycol, and methyl-naphthyl ether; also present may be aluminium or magnesium powder and a gelling agent, e.g. polyvinyl chloride, polyvinyl acetate, ethyl cellulose, cellulose acetate, or sodium or magnesium stearate or palmitate. A self-oxidant composition, used for coating the metal units to vary the burning rate, may comprise nitrocellulose gelatinized with nitroglycerine or with a plasticizer, many of which are specified; other coating compositions comprise an oxidant, and a binding agent, to which may be added organic fuels, finely-divided metals, carbon, or silicon.  Suitable oxidants are ammonium, potassium, sodium and lithium chlorates and perchlorates, ammonium, potassium, sodium and barium nitrates, peroxides of lead, barium, potassium, and sodium, hexanitroethane, mannitol hexanitrate, and RDX, and suitable binding agents are organic polymers, natural and synthetic rubbers, natural resins, silicones and bituminous materials.
Patent GB-973172-A (GB)
Title: Discard disposal means for metal extrusion presses
Inventor: BILLEN PETER
IPC: B21C35/04
Filed: 1962-07-05
Abstract: 973,172. Extruding. LOEWY ENGINEERING CO. Ltd. July 5, 1962, No. 25748/62. Heading B3P. In a metal extrusion press, the discard D is severed from the extruded product T, Fig. 2, by a punch 42, Fig. 6, which is moved from an outer position into the extrusion axis, and stripping means 66 are provided at the outer position for removing the discard from the punch. The press is of the kind described in Specification 935,438, having a pair of billet containers 22 and a pair of punch units 24 mounted on a rotary carrier 16, and a pair of dies 28 mounted on a second rotary carrier 14. After extrusion of a tube T the carrier 16 is retracted and then rotated to bring one of the punches 42 into the extrusion axis. The punch mounted in a spring loaded holder 52, is pressed forwardly by the press ram 32 to shear off the discard D, Fig. 4 (not shown). After retraction of the press ram, the carrier 16 is again rotated to bring the punch with the discard D and die 28 into an outer station facing a stripper peg 66 which is moved by a ram unit 68 to push the punch 42 out of the discard and die. Upon return of the finger the discard and die are removed therefrom by a stripper plate 72 and fall into a shoot 74.
Patent GB-804467-A (GB)
Title: Process for producing a nitro-acetophenone
Filed: 1955-09-08
Abstract: p-Nitroacetophenone is prepared by reacting a -methyl-p-nitrobenzyl nitrate with at least one equivalent of a strongly basic substance (e.g. one of dissociation constant not less than 10-3), if necessary in presence of an inert organic solvent containing up to 25 per cent water.  Strongly basic substances are defined as substances which have sufficient basic strength to effect the conversion, and includes both those which are basic as the term is usually understood and those convertible to such bases under the reaction conditions. Reaction temperature may be from 10-110 DEG  C., and an inert organic solvent such as an alcohol containing less than 25 per cent water may be employed.  Basic substances may be alkali or alkaline earth hydroxides, oxides, alkoxides, hydrides or amides, alkali metal carbonates, amines, quaternary ammonium compounds, or sodium triphenylmethyl.  In examples, a -methyl-p-nitrobenzyl nitrate is reacted with (1) piperidine, (2) potassium hydroxide or carbonate, (3) sodium methoxide, (4) benzyl trimethylammonium hydroxide, (5) di-n-butylamine, (6) morpholine, (7) diethanolamine, (8) di-n-propylamine, (9) diethylamine, (10) a quaternary ammonium carbonate polystyrene resin, (11) barium hydroxide, (12) sodium hydroxide, (13) N-phenyl-piperazine, (14) 2,5-dimethyl-piperazine, (15) diethylenetriamine, (16) pyrrolidine.  In a further example, the crude nitration product of methyl phenyl carbinol (containing 60 per cent a -methyl-p-nitrobenzyl nitrate) is reacted with potassium hydroxide in methanol.  a -Methyl-p-nitrobenzyl nitrate is obtained by reaction of phenyl methyl carbinol with fuming nitric acid at low temperatures.
Patent GB-153285-A (GB)
Title: Grinding or polishing machine for optical glasses
IPC: B24B13/02
Filed: 1920-09-07
Abstract: 153,285. Kuhlmann, F. Oct. 24, 1919, [Convention date]. Void [Published under Sect 91 of the Act] . Lenses and curved surfaces of mirrors, grinding' and polishing.-In a machine for grinding or polishing optical glasses comprising a number of separate grinding- devices &c. combined to form one machine, each grinding-device &c. comprises a frame a carrying the grinding and polishing apparatus b - - f and having at both sides finished faces adapted to receive the members i connecting the frames. Any desired number of frames may be connected thus, the driving-shafts of the various grinding-devices &c. being adapted to be connected by clutches to form a continuous and common driving-shaft.
Patent GB-677722-A (GB)
Title: Superregenerator
IPC: H03D11/02
Filed: 1948-10-04
Abstract: 677,722. Super - regenerative receivers. PHILCO CORPORATION. Oct. 4, 1948 [Oct. 20, 1947], No. 25817/48. Class 40 (v). An oscillator is caused to oscillate during recurrent periods by means of pulses having a harmonic spectrum, the envelope of which intercepts the zero axis in the vicinity of the oscillation frequency, and signals are applied to the oscillator to vary the nature of the oscillation build-up. In the circuit described the oscillator operates at a frequency fr and is used as a super-regenerative amplifier. Part of the output signal of frequency fr in conductor 3 is passed through a frequency divider 7 and used to control a quench oscillator which generates narrow rectangular pulses having a duration of n fr - and a repetition frequency - (where n and m fr m are integers). The vertical lines in Fig. 2 illustrate the harmonic spectrum of the quench oscillator and the envelope 10 of this spectrum passes through zero at the oscillation frequency. The quench harmonics do not therefore interfere with the oscillation build-up. If the quench fr oscillation frequency is not equal to - (i.e. is m not a sub-harmonic of the oscillator frequency) the envelope of the harmonic spectrum does not intercept the zero axis at a harmonic frequency but the nearest harmonic is of low amplitude. It is also stated that the oscillation frequency could be located midway between any adjacent pair of quench harmonics. Specifications 677,769 and 5822/47 (as open to inspection under Sect. 91) are referred to.
Patent GB-1071422-A (GB)
Title: Educational apparatus for simulating atomic and molecular models
IPC: G09B23/26
Filed: 1964-06-23
Abstract: 1,071,422. Educational appliances. D. STRACHAN. June 23, 1964 [June 24, 1963], No. 25913/64. Heading G5G. Educational apparatus for illustrating the atomic and molecular structure of matter comprises a first member 12, Fig. 9, representing the nucleus, a second member 11, or 611, representing the K electron shell, said second member having a hole therein and means to receive and secure the first member 12 in said hole, a third member 630 or 631 representing a planetary electron and means such as a peripheral channel 621 to secure said third member to said second member 61. In the embodiment shown in Fig. 9, the structure represents a molecule of methane, whereby the carbon atom 600 is represented by a nucleus 612, the K and L shells by 611 and 30, respectively. The energy levels of the electrons in the K and L shells are represented by the peripheral channel 621 and peripheral channel 400 and channels 538, 539, respectively. The hydrogen atoms 500 . . . 503 are attached by pins 530 . . . 531, representing electrons, to the carbon atom 600 and in particular engaging channels 538, 539 representing the lowest energy level. To simulate the forms of valency such as electrovalency and co-valency pins of different colours may be used.
Patent GB-838707-A (GB)
Title: Fork lift or like truck
IPC: B66F9/08
Filed: 1956-08-24
Abstract: 838,707. Lift trucks. VEREINIGTE WESTDEUTSCHE WAGGONFABRIKEN A.G. Aug. 24, 1956 [Aug. 24, 1955], No. 26016/56. Class 78 (3). The mast 2 of a lift truck is rigid with the truck body 1 and is tilted by tipping the body about the axis of the front wheels 6. The rear wheels 7 are mounted on levers 8, pivoted to the body at 9, and are extended and retracted by an hydraulic ram 11. The seat 5 is attached to the body, but in a modification (not shown) it is supported directly on the wheel axles. In a further modification the wheels 7 are guided by substantially vertical guides on the truck body.
Patent GB-1128309-A (GB)
Title: Apparatus for reorienting tubular knitting fabric
IPC: D06H3/12
Filed: 1966-06-10
Abstract: 1.128.309. Folding fabrics. SAMCOE HOLDING CORP. 10 June, 1966 [22 June, 1965], No. 26056/66. Heading D1S. Apparatus for effecting edge-to-centre reorientation of tubular knitted fabric 11 comprises an internal frame 13, Fig. 4, over which the fabric tube passes and which has a reorientating section 26 of generally flat form and substantially square cross-section. The fabric 11 passes from a supply roll 10 over a guideroll 12 and over the frame 13. The reorientated fabric 14, having its original side edges located along the centre line of the web, passes over a drive roll 15, which is preferably felt covered, a dancer roll 16, which controls an air motor 18 to keep the incoming and outgoing rates in balance, and a guide roll 17. The frame 13, Fig. 4, comprises sections 25, 26, 27 at right angles to each other and is preferably assembled from four components which are telescopically adjustable to accommodate different fabric widths. Pairs of small diameter rollers 22, 23, Fig. 1, are mounted on a platform 21 each pair at right angles to the other pair. The frame section 26 lies between the pairs of rollers 22, 23, the section 25 extends upwardly between the rollers 22 and the section 27 extends downwardly between the rollers 23. The rollers 22, 23 may be freely rotatable, as shown, or driven in synchronism with the passage of fabric through the apparatus by the motor 18. In a modification (not shown), the rollers 23 and optionally the rollers 22 may drive the fabric through the apparatus and the roller 15 is omitted.
Patent GB-904022-A (GB)
Title: Manufacture of tetrafluoroethylene
IPC: C07C17/269
Filed: 1959-07-29
Abstract: Tetrafluoroethylene is obtained by the pyrolysis of CHF2Cl in the presence of water vapour.  The reaction may be carried out at 650-1400 DEG C. with residence times of 0.005-0.8 second, using a proportion of steam of 15-70% mol based on the reaction mixture.  The process may be carried out in a slit-shaped reaction zone as described in Specification 902,682 in the added presence of steam; or in a reaction zone supplied with an oxyhydrogen flame, the heat required for the pyrolysis being derived from the super-heated steam thereby introduced into the reaction zone.