baber/WOPTO huggingface dataset:
Patent GB-955079-A (GB)
Title: Improvements in or relating to the polymerisation of styrene
Inventor: MANLY THOMAS DAVID
IPC: C08F12/08
Filed: 1960-03-09
Abstract: A polymerization catalyst-containing pack for use in the polymerization of styrene or a composition thereof (e.g. with a plasticizer). comprises one or more organic peroxy catalysts in a sealed container at least part being of polystyrene and of such thickness (e.g. 0.3 mm) that when used the polystyrene part dissolves at room temperature in the styrene or composition thereof and/or reacts with the peroxy compound so that the catalyst is liberated. The pack is preferably wholly of polystyrene but alternatively may be made such that the lower portion is of a material resistant to attack by the catalyst contained therein and the upper portion is of polystyrene. Specified catalysts are dry benzoyl peroxide and pastes of cyclohexanone peroxide in tricresyl phosphate or dibutyl phthalate.
Patent GB-161814-A (GB)
Title: Combination lock
IPC: E05B37/02
Filed: 1920-03-20
Abstract: 161,814. Hanham, A. B. March 20, 1920. Locks, permutation; hasp locks.-The lever R controlling the bolt H is rocked on its pivot M by the spring G when the radial recesses F on drums are aligned with each other and with the end E of the lever. The drums, C, C<1>, C<2>, are mounted concentrically, the sleeve D of the drum C revolving on the spindle L, the sleeve D<1> of the drum C' on the sleeve D, and the sleeve D<2> on the sleeve D<1>. The sleeves have radial notches B, and three discs A, A', A<2>, also concentrically mounted on the spindle L, rotate the drums C, C<1>, C<2>, respectively, by pairs of lugs fitting into two of the notches B in each sleeve. Numbers on the peripheries of the discs enable the drums to be turned to the position in which the recesses F are in line. The combination is changed by loosening the nut K, pushing out the spindle L and re-engaging the lugs of the discs in different notches in the sleeves of the drums.
Patent GB-1303837-A (GB)
IPC: H03M1/00
Filed: 1970-02-20
Abstract: 1303837 Analogue/digital converters LICENTIA PATENT VERWALTUNGS GmbH 20 Feb 1970 [22 Feb 1969] 8381/70 Heading G4H In an analogue/digital converter comprising two stages 1, 2 (Fig. 1) each delivering a digital output on one of leads 3, 4 and in each of which an input signal is compared with a plurality of threshold levels, the levels of the stage 1 are varied in accordance with the digital output of stage 2. As described each stage comprises a plurality of differential amplifiers (13, 14, Fig. 4, not shown) comparing an input signal with threshold levels derived from tapping point on a potential divider to direct current from a transistor (17) to one of the outputs (19, 20 ...). In a case of stage 2 outputs associated with higher threshold levels and the output associated with lowest level are connected via diodes (21 Fig. 5 not shown) forming an OR gate to the first stage so that when the signal is from one of these outputs a transistor (26) is rendered conductive to short circuit a resistor (16) in the potential divider of stage 1 and so alter abruptly the threshold levels at the tapping points from a lower level to a slightly higher level. The input is fed direct to the stage 1 and via a network 6 to the stage 2, the network 6 comprising transistors (12, Fig. 3, not shown) controlled by the outputs (3) of the first stage bypassing zener diodes (11). When the output of the second stage jumps from the highest level to the lowest level (as a result of the output of the first stage changing) the threshold levels of the first stage drop back to their low level. In the embodiment of Fig. 6 the threshold levels vary from their low level to their high level in a staircase manner. This is effected by feeding the outputs the second stage via weighted resistors 34, so that the control voltage at a resistor 35 varies stepwise. This signal controls a transistor 36 and hence a further transistor 37 included in the voltage divider of stage 1. When the transistor 13 of the uppermost differential amplifier conducts a transistor 14 conducts to short-circuit the resistor 35 and establish a zero level at this resistor. The last differential amplifier is also connected via a Schmitt trigger 41, 42 to the base of a transistor 37 so that when the lowest output exists the highest level of bias voltage is inserted. The circuits of Figs. 5 and 6 may be designed so that certain of the transistors may be overdriven to retain the threshold levels after an abrupt modification until the outputs of stages 1, 2 have become established.
Patent GB-541086-A (GB)
Title: Improvements in or relating to the estimation of ammonia
IPC: G01N7/00
Filed: 1940-05-09
Abstract: 541,086. Estimation of ammonia. HAYWOOD. F. W., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. May 9, 1940, No. 8389. [Class 1 (i)] Free ammonia in gases such as the mixed gas leaving a nitriding furnace is estimated by cooling the gas, measuring its volume, heating to crack the ammonia, cooling to the same temperature as before, and re-measuring the volume, the increase corresponding to the amount of ammonia present. The measuring device may comprise two superimposed flow meters in which the gas issuing from jets 10, 16 impinges upon vanes 25, 26 pivoted in segmental cover plates. To the vanes are attached a scale 23 and a pointer 24 respectively. The differential reading indicates the proportion of ammonia. In a modification the pointer and scale may be outside the housing of the meter and operated by magnets attached to the vanes.
Patent GB-1457549-A (GB)
Title: Reinforcement of vehicle doors
IPC: B60J5/04
Filed: 1974-02-25
Abstract: 1457549 Winding cores REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 25 Feb 1974 [6 March 1973] 8434/74 Heading B8G [Also in Division B7] Relates to a filament wound reinforcing device for a vehicle door (see Division B7). The device includes an elongate composite member 3 connectible at its ends to the interior of a vehicle door and has an elongate core 5, Figs. 2 and 3, and a continuous wall 6 extending around the core 5 and compound of (a) a winding of Mass yarn 10 under tension, each turn of the winding extending from end to end of the core 5 and (b) a synthetic resinous material bonding together the turns of the winding. The core 5 is an elongate block of synthetic resinous material having a zig-zag strip portion connected to a surrounding peripheral portion. In another embodiment the continuous wall 6 surrounds a rigid or semi-rigid foam core.
Patent GB-357483-A (GB)
Title: Improvements in lamps with means for attachment to mirrors or other objects
IPC: F21V21/08
Filed: 1930-03-15
Abstract: 357,483. Electric hand lamps. CHAVANIS, J., 66, Rue Orfila, Paris. March 15, 1930, No. 8455. Convention date, March 19, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 75 (ii), 75 (iii), and 75 (iv).] Supporting; mounting reflectors in lamp casings. -The lamp is adapted to be attached to the surface of a mirror &c. by means of a rubber suction cup a secured to a spring- pressed operating pushbutton e in a sleeve f fixed transversely to the lamp. The lamp casing i is open at the top m and has an apertured base and sides for ventilation purposes. The casing is mounted on the bulb holder i bv means of claws h, which may constitute the base of the casing. The front of the lamp is glazed with opal or fine ground glass to prevent dazzle. A reflector o is connected to the casing at certain points p only with the interposition of amianthus or other heat-insulating washers.
Patent GB-125082-A (GB)
Title: Improvements in or relating to Luminous Signs, Sights, or the like
Inventor: FENDERL HEKTOR
IPC: G09F13/20
Filed: 1919-04-03
Abstract: 125,082. Fenderl, H. Aug. 27, 1915, [Convention date]. Sights. - Relates tc luminous sights, ap. plicable to telescopes and like instruments, and consists in screen. ing the luminous ma. terial so that its light rays do not travel directly to the eye, but first reach the sighting. marks, and are re. flected or refracted therefrom to the eye. In the case of spider's web cross-wires for telescopes, a ring of self-luminous substance surrounds the system of cross-wires and is concealed by a flange on the cross-wire mounting. Fig. 1 shows a crossline system for telescopes, made of crystal, with the cross-lines formed by inclined surfaces 2 cut into or upstanding from the surface 1. The light from the self-luminous material 4 on the periphery of the plate 1 passes through the crystal to illuminate the cross-lines. The ring screen 5 prevents direct light from reaching the eye. Micrometer scales, dial plates, &c., may be similarly illuminated either externally or internally, or bubbles in the interior of transparent holders may be illuminated. The visual sight mark may be an engraved hemisphere recessed into a block of glass, internally illuminated as shown in Fig. 1.
Patent GB-1530536-A (GB)
Title: Type heads
IPC: B41J1/30
Filed: 1977-03-01
Abstract: 1530536 Selective printing NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 1 March 1977 [8 March 1976] 08500/77 Heading B6F A type head comprises an annular member 24 concentric with a hub 23 and connected  thereto by radial spokes 25, and a plurality of arms 26 carrying type units 27 connected to member 24 and extending radially outwardly therefrom.
Patent GB-845738-A (GB)
Title: Improvements in and connected with vehicles for traverse on mono-rails
Inventor: RUSTON LEONARD EDGAR
IPC: B61C13/04
Filed: 1958-03-18
Abstract: 845,738. Mono-rail locomotives. ROAD MACHINES (DRAYTON) Ltd. April 6, 1959 [March 18, 1958], No. 8575/58. Classes 79(1) and 79(2) A mono-rail vehicle is driven by hydraulic motors from a pump operated by a prime mover, the forward, reverse and neutral operations of the motors being determined by a valve a, for example as described in specification 845,737, the valve being operated by a rocking quadrant b pivoted at b<SP>1</SP> and biased towards a neutral position, (Fig. 1). Neutral-bias springs are also provided in the valve a. The quadrant may be rocked by a handle b<SP>4</SP> to/put the valve in the forward or reverse position and may be held in this position by_ engagement of a spring loaded pin c<SP>1</SP> with one or other of the shoulders b<SP>5</SP> or b<SP>6</SP>. A laterally projecting lug c<SP>5</SP> from the pin c<SP>1</SP> may be engaged by a lever d by which the pin c<SP>1</SP> may be disengaged from the quadrant by the driver of the vehicle. The lever d may be engaged by a double cam e' upon a transverse shaft rotatable by means of levers e at the sides of the vehicle and biased by gravity to normally hang in a vertical position, to enable a person at the side of the rail to disengage the pin c<SP>1</SP>. The pin may also be disengaged by cooperation of stops provided at the side of the rail with a member h' through the links h g and c. The handles e and cam e<SP>1</SP> may be put in a position whereby the pin c<SP>1</SP> is permanently disengaged from the quadrant, permitting positive control of the quadrant by the lever b<SP>4</SP>. Specification 845,736 also is referred to.
Patent GB-844980-A (GB)
Title: Method of producing dense uranium oxide bodies
IPC: C01G43/025
Filed: 1958-03-18
Abstract: Dense uranium oxide bodies are prepared by sintering in a steam atmosphere a body of uranium oxide grains, having an atomic ratio of oxygen to uranium not over 2.04, preferably under 2.02, and a particle size of less than 1 micron average diameter.  The sintering temperature may be 1300 DEG C.-1400 DEG C. If the original grains are oversize, they may be reduced in size, for example by ballmilling, such operations tending to increase the oxygen-uranium ratio, which must be reduced to not over 2.04 before the steam sintering, for example for firing at about 1200 DEG C. for about 2 hours in a hydrogen atmosphere.  The final sintered body may be cooled in a steam or a hydrogen atmosphere. Prior to the initial reduction in a hydrogen atmosphere, the body may be brought to 1200 DEG C. in a steam or hydrogen atmosphere, or in a neutral or reducing atmosphere such as nitrogen or cracked ammonia.  The reduction may be carried out at any point prior to the steam sintering.  The product after sintering has an oxygen-uranium ratio of about 2.19, but the final oxygen content depends on the atmosphere in which the body is cooled. In a hydrogen atmosphere the oxygen-uranium ratio is 2.03 or less, whereas in a steam atmosphere the body consists of two cubic faced crystals, UO2 and UO2,25, in the ratio of about 1:3.
Patent GB-786763-A (GB)
Title: Derivatives of thiophosphoric acid
Inventor: LORENZ WALTER
IPC: C07F9/6521
Filed: 1955-03-24
Abstract: The invention comprises as new products O,O - dialkyl - S - (benzazimidomethyl) - thio - phosphates of the formula <FORM:0786763/IV (b)/1> in which X is oxygen or sulphur and "alk" is an alkyl group, e.g. methyl, ethyl, or isopropyl.  The compounds may be obtained by reacting N-halogeno-methyl benzazimides with the salts of dialkylthiophosphoric acids or of dialkyldithiophosphoric acids. The reaction is preferably carried out in an inert liquid diluent, e.g. benzene, toluene, or an alcohol or ketone, and is preferably completed at slightly elevated temperature.  Examples are given for the production by the above method of compounds of the above formula in which X is a sulphur atom and each "alk" is methyl, ethyl, propyl and isopropyl respectively and compounds in which X is an oxygen atom and each "alk" is ethyl, propyl and isopropyl respectively.  The products are stated to be highly effective against sucking and chewing insects, especially spider mites.  N-Chloromethyl-benzazimide which is used as starting material in the examples is obtained by treating N-hydroxymethyl benzazimide suspended in chloroform with thionyl chloride and N - bromo - methyl - benzazimide which is also used in one of the examples to prepare the compound in which X is a sulphur atom and each "alk" is ethyl is obtained by adding phosphorus tribromide dropwise to a suspension of N-hydroxymethyl-benzazimide in acetonitrile.  N-Hydroxymethylbenzazimide is obtained by reacting benzazimide with formaldehyde and water.
Patent GB-798309-A (GB)
Title: Improvements in fire hose
Inventor: CANNEY DUNCAN EDWARD FARMER
IPC: A62C33/00
Filed: 1956-03-20
Abstract: 798,309. Hose pipes. ANGUS & CO., Ltd., G. March 5, 1957 [March 20, 1956; March 20, 1956; Oct. 23, 1956], Nos. 8686/56, 8688/56 and 32325/56. Class 142(4) [Also in Group XXVIII] The woven outer jacket of a hose pipe includes a group 11 of tensile warps composed of continuous filament yarn and a group 12 of abrasion warps of staple fibre which stand proud of the tensile warps to resist damage from abrasion. The warps 11 may be continuous filaments of polyester, acrylonitrile, nylon or glass whilst the warps 12, which may be at a lower tension than the warps 11, may be of staple fibres of the aforesaid substances or of cotton, rayon, flax, asbestos, or wool. The weft 10 may comprise a single, convolutely wound yarn of continuous filament nylon or alternately spaced convolutions of continuous filament and staple fibre yarn. Alternatively the two types of yarn may be combined into a composite weft. In the second Provisional Specification it is stated that the abrasion warps 12 may be woven so closely as to form loops on the outer surface which may be left uncut, cut, or cut and carded to form an outer felted surface and in the first Provisional Specification a hose is described having a double jacket, the inner jacket comprising the tensile warps and the outer jacket the abrasion warps. Specifications 538,455 [Group XXVIII] and 562,326 are referred to.
Patent GB-1306511-A (GB)
Title: Imidazoline derivatives
IPC: C07D233/22
Filed: 1970-02-23
Abstract: 1306511 Imidazoline derivatives SANDOZ Ltd 23 Feb 1970 [5 March 1969 19 May 1969 9 Oct 1969] 8688/70 Heading C2C Novel imidazoline derivatives of the general formula wherein R and R 1  are each a hydrogen, fluorine or chlorine atom and R 3  is a hydrogen atom or a phenyl group, and acid addition salts thereof are prepared by reaction of an organolithium compound of the formula with a carbonyl compound of the general formula followed by hydrolysis, and optional salification of a resulting free base or conversion of a resulting salt to the corresponding free base. Imidazoisoindole derivatives of the general formula and acid addition salts thereof, are prepared by treatment of an imidazoline derivative of the first formula above wherein R 3  is a hydrogen atom or an acid addition salt thereof with a catalytic amount of an acid, followed by mild oxidation and optionally by salification of a resulting free base or conversion of a resulting salt to the corresponding free base. Pharmaceutical compositions having central nervous system stimulant and appetite-depressant activity comprise, as active ingredient, an imdiazoline derivative of the first formula above wherein R 3  is a phenyl group or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutically acceptable carrier, and may be administered orally or parenterally. Reference has been directed by the Comptroller to Specification 1,187,009.
Patent GB-559710-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01L7/08
Filed: 1942-06-25
Abstract: 559,710. Cylinders ; regulating. ASPIN, F. M. June 25, 1942, No. 8726. [Classes 7 (ii) and 7 (vi)] A rotary valve 12 is seated in a plug-like member 11 axially movable in the end of the engine cylinder 10 for varying the combustion space. As shown, the member 11 is restrained from rotation by a guide pin 21 and is provided with a face cam 18 bearing against a rotatable cam 17, which is connected to a piston actuated by the pressure in the induction pipe. The member 11 carries bearings 19 for the driving-pinion 20. In a modification, the member 11 is connected at 26, Fig. 3, to a link 25 between an enginedriven governor 24 and the throttle control lever. In a multi-cylinder engine, the cams 17 may be connected for simultaneous adjustment. Specifications 463,412, 511,208, 535,856 and 537,863 are referred to in the Complete Specification and Specifications 557,564 and 557,565 in the Provisional Specification.
Patent GB-395102-A (GB)
Title: Improvements relating to the docking of vessels
IPC: B63C5/04
Filed: 1932-03-24
Abstract: 395,102. Bilge-blocks. GLOVER, W. G., 87, Victoria Street, London. March 24, 1932, No. 8817. [Class 68 (ii).] Bilge-blocks are made adjustable in directions parallel and at right angles to the keel line, and fitted with universally mounted abutments for contacting with the keels. Each bilge-block comprises a pair of vertically-adjustable pillars 1 each in a guide-way 2 in the base or carriage 3, and on a pivot 5 in the pillars 1 is mounted a bent lever or beam 14, on the ends of which are Hookes-joint pivots 8, 9 supporting the plates 11, 12 and bearing blocks or pads 13. The parts 1, 4 &c. are raised by a wedge 14, which bears against a slide block 16 on the spindle 5. The wedge is moved by hydraulic devices 14a and retained by pawls 17. The carriage 3 is mounted on an under-carriage 19, which is slidable longitudinally on a beam 20 transverse to the keel line, by means of a screw adjustment 21. The beam 20 may be moved on running strips 28 in a direction parallel to the keel line, by pinions 25 engaging with recessed-in racks 27. The adjustments 21, 25 are operated by the levers 24. Specification 216,196, [Class 68 (ii), Subaqueous buildings &c.], is referred to.
Patent GB-946592-A (GB)
Title: Process for the manufacture of pre-fabricated wall and ceiling slabs
IPC: E04C2/04
Filed: 1961-03-10
Abstract: 946,592. Building slabs; walls. H. MISCHEK. March 10, 1961 [March 11, 1960; July 2, 1960], No. 8851/61. Headings E1B and E1V. Slabs for wall and ceilings are formed by introducing successively into a mould a dense concrete layer and at least one heat and sound insulating layer comprising wood shavings or chippings and cement. An outer wall slab comprises dense concrete 2, the insulating layer 3, a vermiculite cement layer 1, and an outer cement layer 4. A partition slab comprises a dense concrete layer 5 and layers 6, 7 providing the insulation. The slabs may contain a metal reinforcement and at a wall junction the outer wall slabs are separated by foam material 9 and cement 10, the opening 11 receiving projecting reinforcements and being filled with concrete.
Patent GB-942461-A (GB)
Title: Improvements in electronic pulse gating circuits
IPC: H03K3/70
Filed: 1960-03-14
Abstract: 942,461. Electric selective signalling systems. M. KUROKAWA. March 14, 1960 [Aug. 7, 1959], No. 8852/60. Drawings to Specification. Heading G4H. [Also in Division G1] A system for measuring the time between two data pulses in which the two data pulses are used successively to open and close a main gate to clock-pulses whereby a number of clock-pulses pass through the gate representative of the time between the two data pulses is characterized in that the two data pulses control the main gate not directly but via the intermediary of further gates themselves controlled by phase-shifted clockpulses, the arrangement being such that the main gate can only open or close at instants of time between two adjacent clock pulses which ensures that the clock-pulses that pass through it do so cleanly and without distortion.
Patent GB-429798-A (GB)
Title: Improvements in or relating to process for cadmiumizing steel wool, and the resulting product
IPC: C25D7/00
Filed: 1934-03-21
Abstract: 429,798. Steel wool. MILLER, E. H., and LEESON, W. S., Thamesville, Ontario, Canada. March 21, 1934, No. 8918. Convention date, May 5, 1933. [Class 83 (ii)] [See also Group XXXVI] An unmatted felt of steel wool is cadmiumplated uniformly throughout.
Patent GB-137201-A (GB)
Title: Improvements in or relating to hubs for motor cycles and the like
IPC: B62M25/00
Filed: 1919-04-09
Abstract: 137,201. Weaver, W. A. April 9, 1919. Spring drives.-The roadwheel hub a is mounted on a sleeve c, which carries a chain-wheel f driven from the engine and drives the hub through a spring- pressed sliding clutch member h, the coacting surfaces of the clutch having inclined faces as shown in Fig. 3. A brake drum r may be fixed to the clutch member h, and, in order to prevent the wheel from overrunning the engine, the clutch may be made with those faces square which act in one direction of rotation. The inclination of the notches may be so arranged that the notches of the clutch member h may ride over those of the hub a, or so that any slip is recovered.
Patent GB-218012-A (GB)
Title: Improvements in or relating to froth-flotation concentration of ores and the like
IPC: B03D1/006
Filed: 1923-03-20
Abstract: 218,012. Minerals Separation, Ltd., (Minerals Separation North American Corporation, Ltd.). March 29, 1923. Flotation processes.-In a froth-flotation process for concentrating ores and coal, a frothing- agent is used consisting of an aromatic hydrocarbon having one or more methyl groups, such as xylene, or consisting of a substance, such as solvent naphtha, containing a large proportion of such hydrocarbons. The frothing agent may also contain in solution a heavy aromatic coal tar derivative such as cresol, naphthalene, or anthracene, or their derivatives, and such heavy body may be viscous or semi-solid, such as asphaltic material; an oil such as pine oil may also be present. The process may be applied to the concentration of a value in an ore containing also normally flotable iron, or to the selective flotation of lead in preference to zinc and iron; and in the case of an ore consisting partly of oxidized values, the unoxidized values may first be separated by the process, whereafter the pulp may be sulphided and a further flotation process applied. Specifications 122,454 and 159,285 are referred to.