baber/WOPTO huggingface dataset:
Patent GB-393937-A (GB)
Title: Manufacture of benzyl ethers
IPC: C07C41/01
Filed: 1931-12-02
Abstract: Benzyl ethers are manufactured by reacting a benzyl halide with an alcohol containing more than ten carbon atoms in the presence of finely divided aluminium, e.g. commercial aluminium powder, and a sufficiency of an acid binding agent such as chalk or magnesia. The reaction may be effected by heating at about the boiling point of the benzyl halide, conveniently in a vessel fitted with a stirrer and a short reflux condenser.  The products may be sulphonated by the process of Specification 378,454 to produce wetting and detergent agents.  In examples: (1) octadecyl alcohol and benzyl chloride are heated in the presence of aluminium powder and chalk to produce octadecylbenzyl ether; the octadecyl alcohol may be replaced by dodecyl alcohol; (2) cetylbenzyl ether is produced from cetyl alcohol using magnesia as acid binding agent; (3) the cetyl alcohol in (2) is replaced by dodecyl alcohol, yielding dodecylbenzyl ether; (4) oleylbenzyl ether is produced from oleyl (octadecenyl) alcohol by the process of (1).
Patent GB-418874-A (GB)
Title: Improvements in or relating to clips for pens and pencils
IPC: B43K29/18
Filed: 1933-11-30
Abstract: 418,874. Attaching articles to wearing apparel. LAURITZEN, C. F. A., 30, Rolfsvej, Copenhagen. Nov. 30, 1933, No. 33666. Convention date, Dec. 31, 1932. [Class 43.] A clip for fountain pens, pencils and the like is provided with a tubular sheath D which is open at one end and slidably carries within it a blade shaped member E such as a nail file, nail cleaner, erasing knife or tweezers. The slidable member E is provided at its lower end with projections F which slide in slots formed in the sheath and facilitate its removal.
Patent GB-307776-A (GB)
Title: Process for the manufacture of water-soluble products from commercial fatty acids obtained from raw wool fat
IPC: C11C3/00
Filed: 1927-12-13
Abstract: 307,776. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Dec. 13, 1927. Emulsions, making.-Water-soluble semi-solid bodies of high emulsifying power are obtained by sulphonation of the fatty acids obtained from raw wool fat with sulphuric acid monohydrate in the presence of phenol. The alkali soap obtained from the product is also an emulsifying agent.
Patent GB-1005419-A (GB)
Title: Pneumatically operated toy
IPC: A63H33/40
Filed: 1963-08-26
Abstract: 1,005,419. Windmills and the like. H. K. P. LINES. Aug. 26, 1964 [Aug. 26, 1963], Nos. 33748/63 and 46696/63. Heading A6S. A toy for use with a discarded squeeze bottle of the kind used for domestic detergents comprises a rotatable disc subject to be rotated by the stream of air from the said bottle and mounted on a support 8 shaped to fit over or into the neck of the bottle. One embodiment shows a disc 12 having vanes 13 on which air from the bottle 1 impinges to rotate the disc. The disc may carry a central figure 21 which is hidden by spring loaded petals 18 until they open out by centrifugal force to the positions shown chain dotted. The cap 7 holding the support 8 fits tightly over the neck of the bottle and is supplied with a ball valve to facilitate more rapid intake of air.
Patent GB-1491857-A (GB)
Title: Disposal of waste liquid in desulphurization of exhaust gases by wet lime-gypsum process
IPC: B01D53/86
Filed: 1976-08-16
Abstract: 1491857 Wet-lime-gypsum desulphurization MITSUBISHI JUKOGYO KK 16 Aug 1976 [10 Sept 1975] 33940/76 Heading ClA Exhaust gases are desulphurized by a wet limegypsum process and the waste liquid therefrom is disposed of by neutralizing a quantity of liquid containing impurities leaving the system, and the neutralized liquid is separated into solid and liquid phases wherein the solid phase is heated to dryness, the liquid phase is concentrated by evaporation and the resultant phases are mixed to give a solid mass, so that no liquid is drained from the system. The heat of the exhaust gases may be utilized in heating and drying the solid phase, and water evaporated in the concentration of the liquid phase can be recovered as make-up feed.
Patent GB-1313373-A (GB)
Title: Polysaccharides having anti-tumour activity and process for  their production
IPC: C08B37/00
Filed: 1970-07-13
Abstract: 1313373 #-(1#3)-Glucans AJINOMOTO CO Inc 13 July 1970 [14 July 1969] 33972/70 Heading C3U A #-(1 # 3)-glucan having anti-tumou<SP>r</SP> activity possesses aldehyde groups derived by oxidation of glycol linkages of a glucan having #-(1 # 3) linkages in the main chain and at least one linkage selected from α-(1 # 2), #-(1 # 2), α-(1 # 4), #-(1 # 4), α-(1 # 6) and #-(1 # 6) linkages in the main chain and/or in a side chain. The starting glucan may be #-pachyman or laminarin. The glycol link may be cleaved using, e.g., periodic acid, sodium periodate or lead tetra-acetate, in aqueous solution in the dark, and at 0-300‹ C., for 20-72 hours. The cleaved #-(1 # 3)-glucan product may be modified to increase stability by reduction of some of the aldehyde groups to hydroxymethyl groups, using sodium borohydride or lithium aluminium hydride. Similarly the oxidized glucan, or the oxidized and reduced glucan, may be subjected to mild hydrolysis, using, e.g., dilute aqueous H 2 SO 4  at 5-30‹ C.
Patent GB-752446-A (GB)
Title: Improvements in photographic silver halide emulsions
IPC: B21D51/38
Filed: 1954-11-24
Abstract: 752,446. Photographic emulsions. KODAK, Ltd. Nov. 24, 1954 [Nov. 24, 1953]. No. 34034/54. Class 98 (2). A light-sensitive silver halide emulsion contains; as an antifoggant and stabilizer, metallic mercury or mercury-gold amalgam, e.g. in a concentration of 0.01 to 3.0 mgs. per mol. of silver halide in the emulsion. The mercury or mercury-gold amalgam may also be incorporated in a colloid layer contiguous with the emulsion layer. The mercury or amalgam may be added to the emulsion in dispersion in a water-permeable colloid medium at any stage prior to coating, e.g. after final digestion. The emulsion may be chemically sensitized by digestion with naturally active gelatin or by the addition of sulphur compounds, salts of ruthenium, rhodium, palladium, iridium, platinum, or gold, stannous salts, polyamines such as diethylene triamine and spermine, or bis-(#-aminoethyl) sulphide and its water-soluble salts, or may be optically sensitized. The preparation of gelatin dispersions of mercury' and of - mercury-gold amalgam is described. In Example 1, speed, gamma and fog data before and after incubation are given for an exposed and developed silver bromiodide emulsion containing a gelatin dispersion of mercury. In Examples 2 and 3, similar data are given for a similar emulsion containing mercury-gold amalgam gelatin dispersion. Specifications 235,211, [Class 98 (ii)], 602,158, 602,160, 618,061, 636,140, 658,592, 661,645, 663,019, 664,230, 680,593, 682,355, 742,219, 742,220, 742,221, 742,222, 742,223, and 742,224 are referred to.
Patent GB-427459-A (GB)
Title: Improvements in the manufacture and production of sodium aluminate
IPC: C01F7/04
Filed: 1934-11-27
Abstract: Solid sodium aluminate is obtained directly by mixing together powdered alumina hydrate and solid caustic soda, with or without a little added water, and reacting the mixture at a temperature insufficient to fuse the caustic soda, and if desired, below that at which an appreciable amount of the water formed by the reaction is removed.  The reaction may be effected at temperatures of the order of 100 DEG  C., the plastic mass first formed being stirred until a solid granular product comprising Na2Al2O4-4H2O is obtained, whereafter the temperature may be raised, say to 250 or even to 500 DEG  C., to form the anhydrous aluminate.  As initial material powdered alumina trihydrate, or powdered bauxite containing about 30 per cent of combined water with or without addition of alumina trihydrate, may be used.  Examples are given.
Patent GB-1521523-A (GB)
Title: Regulating circuit for the modification of a sawtooth signal
IPC: H03K6/04
Filed: 1975-08-15
Abstract: 1521523 Transistor S-shaped sawtooth circuits ITT INDUSTRIES Inc 15 Aug 1975 [16 Aug 1974] 34083/75 Heading H3T In or for a TV receiver, a circuit for distorting a linear sawtooth signal without the use of RC networks for the tangent correction of the vertical deflection current utilizes current controlling circuits which are switched in sequentially so as to modify the charging current of the capacitor across which the sawtooth signal is developed. Generating S-shaped sawtooth waveforms.-In Fig. 1, capacitor C is periodically charged via a first current mirror St1 and discharged via a four-layer diode D. The frequency of the resulting waveform is adjustable at R. The voltage across C is monitored by complementary transistors T31, T32 and compared with reference voltages A31, A32 which respectively determine the times at which further current mirrors St2, St3 feed extra or reduced current via transistor T33 to the input of the first current mirror St1 and so modify the charging current to provide the required waveform. In Fig. 2 (not shown) the first current mirror St1 uses a triple collector transistor with the additional collector and base being coupled to the output of a differential amplifier comprising a pair of transistors. In Fig. 3 (not shown), C is charged via a current mirror comprising two transistors (T53, T54) the voltage across C being monitored so as to control the current supplied by a current mirror (St2) which controls the charging current accordingly.
Patent GB-342401-A (GB)
Title: Process for regulating the voltage over long lines for specially strong increases in voltage
IPC: H02J3/16
Filed: 1929-11-11
Abstract: 342,401. Transmission systems. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Nov. 11, 1929, No. 34428. Convention date, Nov. 12, 1928. [Class 38 (iv).] Regulation, automatic ; feeder and transmission line arrangements. -Upon the occurrence of sudden increases in potential in a long transmission line which is provided with automatic voltage compensating apparatus under the control of a step-by-step time-delayed device responsive to line voltage, all the compensating apparatus, for example inductances 31 .. 33, are immediately switched in and subsequently left under the control of the step-by-step device. The regulating apparatus 35 may be mechanically connected as shown with the relay 37 which operates with excess voltage to switch in all the inductances. The operation may be directly effected by the cause of excess voltage e.g. by the load variation or from a switch connecting a consumers load.
Patent GB-482622-A (GB)
Title: Improvements in or relating to wire gauze filters and the like
IPC: B01D46/10
Filed: 1936-12-15
Abstract: 482,622. Filters. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. Dec. 15, 1936, No. 34445. [Class 46] [Also in Group XXVIII] A filter element is made by laying a sheet a of wire gauze between two suitably shaped gaskets b of rubber or a rubber compound and vulcanizing in a mould so that the gaskets are keyed together.
Patent GB-1100358-A (GB)
Title: Dual reel take-up stand
Inventor: ASH BERNARD EDWIN
IPC: B65H67/056
Filed: 1966-08-02
Abstract: 1,100,358. Continuous winding. STANDARD TELEPHONES & CABLES Ltd. 2 Aug., 1966, No. 34579/66. Heading D1J. In a dual reel apparatus of the kind in which when one reel 1 is full the yarn or wire being wound is transferred to the second reel 2, the two take-up reel supports are driven by a common fixed speed motor 9 via individual slipping clutches 10, 11 there being sensing means 29-31 to vary the degree of slip of which ever clutch is at any instant being used to drive the reel, support, on which yarn is being wound so as to ensure constant take up speed. The sensing means is responsive to the rate of take up of the yarn or wire by the reel support being wound. In the particular embodiment the clutches are magnetic clutches and the sensing means is part of an accumulator for the yarn or wire such that if the accumulator commences to store yarn or wire beyond a predetermined amount it causes a corresponding adjustment of the appropriate clutch to increase the speed of take up; and if the accumulator commences to pay out yarn or wire beyond a predetermined amount it causes a corresponding adjustment of the appropriate clutch to decrease the speed of take un. Shogger plates 5, 6 are mounted between adjacent co-axial reels and a traversing lever, Fig. 2 (not shown), is provided that can switch from one take up reel to the other.
Patent GB-1255104-A (GB)
Title: Process for dyeing textile material consisting of mixtures of polyester and cellulosic fibres
IPC: D06P3/82
Filed: 1969-07-09
Abstract: 1,255,104. Dyeing polyester/cellulose mixtures. FARBWERKE HOECHST A.G. 9 July, 1969 [11 July, 1968], No. 34597/69. Heading DIB. Mixtures of polyester and cellulosic fibres are dyed by impregnating with an alkaline solution of a coupling component containing a wetting or dispersing agent, drying, impregnating with an acid solution of a diazotised aromatic or heterocyclic amine, an acidic compound and at least one disperse dyestuff, drying and subjecting to a heat treatment at 170-210C. The fibrous material may be from 25-70% of polyester and 75-30% of cellulosic fibres, the acid impregnation is preferably at pH 3-7, the diazo component may be a benzene, diphenyl or carbazole compound, the coupling component is preferably an aromatic o-hydroxycarboxylic acid arylamide or acylacetoarylamide.
Patent GB-1325032-A (GB)
Title: Apparatus for peeling fruit
IPC: A23N7/08
Filed: 1970-07-16
Abstract: 1325032 Apparatus for peeling pineapples ATLAS PACIFIC ENG CO 16 July 1970 [22 Aug 1969] 34611/70 Heading A4C A pineapple to be peeled is mounted on a spindle having an end 63 for rotation and is fed to a peeling station where a rotary cutter 119 is provided to peel it, the cutter 119 being pivotally supported for movement towards and away from the axis of rotation of the fruit about an axis 202 which is substantially parallel to the axis of the spindle to allow the cutter to follow the fruit contour. The cutter 119 forms part of a cutter head 206 which is mounted on a lever 201, which is pivoted about axis 202 to a support 203. About the pivot axis 202 is connected, via a swivel 209, an arm 221 which is movable under the influence of two air cylinder devices 222, 223. The force applied by the device 222 is such that a constant, but adjustable pressure, is applied by the cutter on the pineapple. Device 223 is however supplied with air from valve 241 at the end of one revolution of the pineapple thus causing piston rod 233 to move arm 221 so that the cutter is moved out of contact with the pineapple. A guard 217 is provided on the lever 201 to control the depth of peeling. Each pineapple may be peeled at two successive stations and the cutters may remove annular or spiral sections of peel. Reference has been directed by the comptroller to Specifications 1277741 and 1277742.
Patent GB-430346-A (GB)
Title: Improvements in or relating to steam generating plant
IPC: F22B29/06
Filed: 1933-12-08
Abstract: 430,346. Indirectly heated steam boilers. BAUMANN, K., Lacey Oaks, Styal Road, Wilmslow, Cheshire, and STUBBS, A., 390, Wilbraham Road, Chorlton-cum- Hardy, Manchester. Dec. 8, 1933, No. 34657. [Class 123 (ii)] A once - through steam-boiler comprises a number of superheater elements 4, 6, 8, 10, and one or a number of desuperheater elements 5, 7, 9, alternating therewith, the latter being disposed in one or more water evaporating chambers 11 .. 13 of surface contact type steam from which is admitted into the once through circuit and in which the amount of heat exchange is regulated. A feed pump 1 supplies economizer and generating portions 2, 3 in front of the superheating elements and the evaporators are supplied through a pipe 14. Steam from the evaporators is passed into the once through circuit at a point 19, and optionally at other points along its length, its entry being controlled by a valve 20 responding to temperature and pressure variations at the generator outlet 21. The additional connections may have their own thermostats. With the pressure constant a temperature fall tends to close valve 20 and depress the water level in the evaporators so reducing the desuperheating effect. A rise in temperature on the other hand increases the amount of desuperheating. In the case of a suddenly increased demand, however, resulting in a fall in temperature and pressure, valve 20 is prevented from closing whilst the pressure is falling. A fall in temperature being permitted in order to maintain the pressure as high as possible. Inversely, pressure increases prevent valve 20 from opening by reason of temporary increases in temperature. Instead of or in addition to the control by throttling, byepasses for the desuperheaters may be manually or automatically operated. Feedwater may be supplied to the evaporators from several sources and may be injected into the superheated steam at one or more points. The Provisional Specification describes also the provision of steam to the superheated steam circuit from an external source for starting up and the diminution of the water heating portion of the tubing.
Patent GB-486455-A (GB)
Title: Improvements in or relating to braking apparatus for trailer vehicles and the like
IPC: B60T7/20
Filed: 1936-12-17
Abstract: 486,455. Trailer brakes. BISHOP, F. C. N., and WHITEHEAD, R. M. Dec. 17, 1936, No. 34673. [Class 103 (i)] In brakes for trailers the force of overrun between the tractor and trailer is used to actuate the brakes of one axle of the trailer the force of retardation of which applies the brakes on another axle of the trailer. The trailer towbar 1 is mounted on a lever 7 which on over-run occurring operates the brakes on the trailer front axle 6 by a link and lever 10, 11. The front axle 6 is connected bv a tube 14 to the rear part of the trailer. The tube 14 slides in brackets 17, 18 in the rear part and on retardation of the front axle the rear part overruns the front axle and causes application of the brakes on the rear axles 2, 3 by means of levers and links 19-24. The brakes may be applied by the hand lever 25 and released or held released by a lever 27 connected to the lever 19. In a modification the front axle 6 is rotatably mounted and on being braked its rotation due to braking torque applies the rear wheel brakes by a link connecting a lever on the front axle to the rear brakes.
Patent GB-327114-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J1/20
Filed: 1928-11-26
Abstract: 327,114. Robinson, E. Y., and Associated Electrical Industries, Ltd. Nov. 26, 1928. Vacuum tubes. - In order to prevent hum due to the electrostatic attraction of a sheet metal or tubular cathode to a heater, a conducting layer or surface is interposed between the cathode and an insulator around the heater, and is mechanically independent of the cathode but connected with it electrically. As shown, a heater wire 1 of hairpin shape, covered with insulation 2 as described in Specification 278,787, is surrounded by sheath 5 of nickel inserted between the heater and a tubular nickel cathode 3; or a helical strip or wire may be wound around the heater or each leg thereof. The thickness of the sheath is not greater than one-half the thickness of the cathode. Dimensions are given. The sheath may be of oval section. The cathode may consist of a solid drawn or seamed. tube, and the sheath may be formed with a seam or with its edges loosely overlapping. In another arrangement the sur. face of the insulator is made conducting, as by depositing a metal mechanically, chemically, or from a suspension. The insulator may be heated to 200-400‹ C. in an atmosphere of nickel carbonyl, or it may be dipped in a suspension of platinum chloride and heated. Specifications 303,037 and 307,327 are referred to.
Patent GB-804558-A (GB)
IPC: B26B19/14
Filed: 1958-11-14
Abstract: 804,558. Dry shavers. AMMANN, M. W. Nov. 14, 1956 [Nov. 18, 1955], No. 34857/56. Class 131 An adjustable collar 8 fixes the position of a guard-mounting head 5 relatively to a rotary blade holder 4 to compensate for variation in beard hardness and wear of the springs or cutting parts. Teeth 8b on the collar are released from engagement with a spring detent 10a by finger pressure on a latch 12 so that the collar can be adjusted on a screw-threaded part 2 of the casing, the head 5 being screwed down to rest on the collar. In modifications, the teeth are replaced by bores or projections and the head and collar are coupled together for simultaneous adjustment.
Patent GB-1240295-A (GB)
Title: Stepping motor control system
IPC: B41J11/42
Filed: 1968-07-22
Abstract: 1,240,295. Electric motors. INTERNATIONAL BUSINESS MACHINES CORP. 22 July, 1968 [21 Aug., 1967 (2)], No. 34870/68. Heading H2A. A stepper motor control system comprises a pulse generator (118), Fig. 1a (not shown), producing a plurality of mutually phase displaced trains of pulses in dependence on rotation of the motor and switches for selectively feeding pulses from the different trains to maintain motor rotation and vary the motor speed. The pulse generator comprises a slotted disc (111) driven by the motor rotor and associated, in one embodiment, with three mutually spaced pick-offs (103, 104, 106) producing three mutually phase displaced pulse trains. The pulse trains are fed to AND gates (110d, 110e, 110f) controlling an OR gate (100) which through AND gate (98) alternately switches triggers (96A, 96B) controlling the energization of the motor windings. The motor is started by pulses fed to the OR gate (100) from a singleshot circuit (102). Speed control latches (120, 122, 124, Fig. 1c then selectively open the AND gates (110) to feed pulses to the OR gate (100). Acceleration is achieved by successively feeding pulses from the different trains (according to their phase relationship) to the OR gate (100). An additional speed is obtained by inverting the pulses from the pick-off (106) and feeding the inverted pulses to a further AND gate (110g) connected to the OR gate (100). Similarly for deceleration the speed control latches control the AND gates (110) to feed pulses from the different trains (according to their phase relationship) to the OR gate (100). The motor is stopped by STOP circuits (133, 134, 135) blocking the OR gate (100). A modified pulse generator comprises a single pick-off feeding a plurality of cascade connected inverters (205, Fig. 4), the number of possible motor speeds depending on the number of inverters used (Fig. 7). The motor and its control circuitry form part of a high-speed printer as described in Specification 1,240,296.
Patent GB-899273-A (GB)
Title: Improvements in bedding
IPC: A01K1/015
Filed: 1958-10-30
Abstract: 899,273. Bedding unit for livestock. BRAMLEY, A. Jan. 29, 1960 [Oct. 30, 1958; May 12, 1959], Nos. 34886/58 and 16322/59. Class 5(2). [Also in Group XIV] A bedding unit for livestock comprises a layer 11 of foamed material such as polyurethane, either fitted into a close-fitting bag 12 of flexible, waterproof material such as polyvinyl chloride reinforced with fabric, or sprayed with a synthetic resin solution. The thickness of the unit is tapered towards one side to allow liquid to drain away from the upper surface of the unit.