baber/WOPTO huggingface dataset:
Patent GB-466159-A (GB)
Title: Improvements in or relating to the manufacture of plastic materials derived from organic polysulphides
IPC: C08G75/16
Filed: 1935-11-12
Abstract: A condensed or polymerized sulphur-containing plastic material is produced by treating a polymeric organic polysulphide with a sulphur stripping agent, e.g. an alkaline hydroxide or sulphide, to convert it into the corresponding disulphide.  In examples, dispersions obtained by reacting b  : b <1>-dichlorodiethyl ether, di-(b -chloroethoxy) - ethane, b  : b <1>-dichlorodiethoxydiethyl ether or ethylene dichloride with sodium polysulphide in the presence of a small amount of a dispersing agent such as magnesium hydroxide, are heated with sodium hydroxide or sulphide.  The disulphide polymers obtained may be coagulated by addition of a suitable acid, may be oxidized by heating with metallic oxides, e.g. zinc, lead or cupric oxide, or with organic oxidizing agents, e.g. benzoyl peroxide or di- or trinitro benzene, and may be compounded with the usual rubber and resin compounding pigments and fillers; they may be used as plasticizers in resin and the like lacquers, in making gaskets, hose, electrical insulation, printing and engraving plates, printing rolls and blankets, as a protection for textile or other porous material and as padding cement in bookbinding. Specifications 302,270, [Class 2 (iii)], and 439,355 are referred to.  1 : 4-Thioxane is formed as a soluble bye-product when b  : b <1>-dichlorodiethyl ether is reacted with sodium polysulphide.  b  : b <1>-dichlorodiethoxy diethyl ether is prepared by treating tetraethylene glycol with hydrochloric acid. Reference has been directed by the Comptroller to Specification 458,781.
Patent GB-1324483-A (GB)
Title: Fuel additive and combustible compositions containing it
IPC: C10L1/18
Filed: 1971-07-05
Abstract: 1324483 Fuel additive P LAINE 5 July 1971 [8 July 1970] 31338/71 Heading C5G An additive comprising 5 to 50% by vol. benzyl alcohol and 50-95% by vol. phenol when added to Olto or Diesel engine fuel or other fuels, e.g. domestic heating oil, in the amount of 0À05 to 0À5% by volume causes a reduction in CO content of the combustion gases. The fuel preferably contains up to 10% ethyl alcohol.
Patent GB-1149656-A (GB)
Title: Sewage treatment system
IPC: C02F3/12
Filed: 1966-07-13
Abstract: 1,149,656. Activated sludge process. UNION TANK CAR CO. 13 July, 1966 [25 Aug., 1965], No. 31401/66. Heading C1C. A sewage treatment apparatus comprises an aeration zone 30, an energy absorption or quiescent zone 60, a second aeration zone 40, a settling zone 80 and an aerobic digestion zone 40, a settling zone 80 and an aerobic digestion zone 120. Sludge is returned to the second aeration chamber via mouth 43. The transfer of liquid and sludge is controlled by gates 154, 77, 65 and 67. Provision is made for skinning off the scum in chamber 80.
Patent GB-478538-A (GB)
Title: Improvements in or relating to automatic sheet-feeding machines
IPC: B65H3/66
Filed: 1936-11-17
Abstract: 478,538. Feeding sheets. BACKHOUSE, H. T. Nov. 17, 1936, No. 31482. (Class 100 (i)] In an automatic sheet-feeding machine in which sheet-separating and forwarding mechanism, which may be of the kind described in Specification 427,041, act to raise the sheets from a pile and forward them to a delivery position, the sheets are controlled as they move forwards by means of smoothing devices which move forward with the sheets as they are being fed to delivery position. In Fig. 1 the smoothers are constructed as wires 19 which are connected to suckers 17 acting upon the rear of the pile, and the front ends of the wires are bent and reciprocate in hooks 15 suspended from a rail 13 arranged above a feed roll 11. The suckers 17 are suspended from a rail 16 which is moved to and from the pile and also is reciprocated in a longitudinal direction. An air blower 30 assists in separating the sheets, which may finally be advanced as an overlapping stream feed. In a modification, Fig. 2, a sheet 22 of celluloid, or the like, may replace the wires 19, and the sheets are slotted at 26 to permit of reciprocating relatively to feed rolls 25. In further modifications the smoothers may take the form of bands attached to a spring drum which winds up the bands as the suckers reciprocate towards the feed rollers 11, 25 ; or endless bands may be used passing over rollers carried by arms fixed to the rails 13, 16, the bands being driven continuously or intermittently.
Patent GB-787645-A (GB)
Title: Improvements in or relating to machine tools
IPC: B24B7/08
Filed: 1954-11-01
Abstract: 787,645. Grinding. WRIGHT ELECTRIC MOTORS (HALIFAX), Ltd., FRANKE, L. P., and CLAYTON, E. Oct. 31, 1955 [Nov. 1, 1954], No. 31507/54. Class 60. [Also in Groups XXII and XXIV] A surface grinding machine has a grinding wheel 28 carried by an internally splined sleeve 24 mounted on a splined shaft 22 driven through a flexible coupling 16 by a variable speed electric motor 10 mounted in the machine frame 12 which supports a table 37. The sleeve 24 is mounted by a bearing 30 in a housing 32 movable axially by a rack 41 thereon engaging a pinion 42 compounded with a worm wheel 44 meshing with a worm 46 on a spindle 48. A spindle 52 operated by handwheel 60 carries a friction pad which can be forced against the housing 32 to hold it in axially adjusted position.
Patent GB-941177-A (GB)
Title: Electrodes for electrolytic processes
Inventor: SCHLEICHER HANS-WALTER
IPC: C25B1/36
Filed: 1962-08-16
Abstract: <PICT:0941177/C3/1> <PICT:0941177/C3/2> An electrode, e.g. a horizontal anode 4 for use in a brine cell with a mercury cathode 2, comprises parallel elongated flattened elements arranged in a plane, the elements comprising a core 5 of metal of good conductivity, e.g. Cu, clad with Ti or Ta or an alloy thereof and having a metal selected from Pt metals and their alloys applied to the cladding. The Ti or Ta alloy may contain up to 15% of Mn, V, Cr or Al.  Pt metals specified are Pt, Pd and Ir.  The Pt metal or alloy may be in the form of spot welds a few microns thick or wire wound on the elements. The electrode may comprise a sinuous or spiral shaped part or comprise short elements side by side, Fig. 3, each of which is separately connected to a power source.  There is a clearance of 0.1 to 10 mms. between the elements to allow escape of gases.  In an example brine is electrolyzed using an anode comprising a Ti tube with a Cu core and rows of Pt spot welds on its underside.  The cell has rubberized sides and top and a smooth Fe bottom over which cathodic Hg flows.
Patent GB-409233-A (GB)
Title: Improvements in the disposition of armour on warships
IPC: B63B3/10
Filed: 1933-02-09
Abstract: 409,233. Warships. ELECTRIC BOAT CO., Groton, Connecticut, U.S.A. Feb. 9, 1933, No. 31582. Convention date, Feb. 23, 1932. Divided application. [Class 113 (ii).] In a warship the vital stations, battle control room, &c., are arranged beneath an armoured deck 4, which extends right across the ship to the armoured belts 5. Fore and aft of the armoured belts the deck is inclined downwards and is provided at each side with inclined portions running into the ship's side. Beneath the armoured deck 4 and over the ammunition room and adjacent areas a splinter-proof deck 4b is provided which, in the neighbourhood of the engine-room, is replaced by inclined decks 4<c>, Fig. 5.
Patent GB-267860-A (GB)
Title: Improvements in mining props
IPC: E21D15/58
Filed: 1926-12-13
Abstract: 267,860. Meutsch, H. Dec. 13, 1926. Mine props are formed of a main prop portion and a removable inflatable portion which is deflated to remove the prop. The inflatable portion e is formed as a bag of reinforced rubber g with a pneumatic pressure valve and may have pressure portions m of metal. It may be filled with compressed air or water. In one form, the inflated bag is placed on the top of the prop between it and the part supported, while in another form it is placed between telescoping parts o, n, the portion n enclosing the bag to prevent its lateral distension under pressure.
Patent GB-1478679-A (GB)
Title: Electrolytic reduction of aromatic steroids
IPC: C25B3/25
Filed: 1974-07-17
Abstract: 1478679 Electrolytic reduction of #<SP>1,3,5(10)</SP>- to #<SP>2</SP>'<SP>5(10)</SP>-steroids SCHERING AG 17 July 1974 [18 July 1973] 31660/74 Heading C2U [Also in Division C7] #<SP>2</SP>'<SP>5(10)</SP>-Steroids containing an etherified hydroxy group in the 3-position are prepared from #<SP>1,3,5(10)</SP>- steroids containing the same group in the 3-position by electrolysis in liquid ammonia in either (a) a divided cell in the presence of an alkali metal salt of a strong acid (of pK < 5) or (b) an undivided cell in the presence of an alkali metal salt of a weak acid (of pK value 5-32). The strong acid salt may, for example, be a halide, tetrafluoroborate, sulphate or perchlorate and the weak acid salt may for example be an alkali metal salt of aniline, hydrazine, alcohol or water. The undivided cell may also contain an alkali metal salt of a strong acid. In examples estrone methyl ether is reduced to 3 - methoxy - #<SP>2</SP>'<SP>5(10)</SP> - estradien - 17# - ol; 3- methoxy - #<SP>1,3,5,(10),8</SP> - estratetraen - 17# - ol to the corresponding #<SP>2</SP>'<SP>5(10)</SP>-estradiene; dl-3- methoxy - 18 - methyl - #<SP>1,3,5,(10),8</SP> estratetraen- 17 - one to dl - 3 - methoxy - 18 - methyl- #<SP>2,5(10)</SP> - estradien - 17#  -  ol; 3 - methoxy- #<SP>1,3,5(10)</SP> - 19 . nor - pregnatrien - 17α - ol - 20- one 20-ethyleneketal to the corresponding #<SP>2,5(10)</SP> - 19 - nor - pregnadiene; 3 - methoxy- #<SP>1,3,5(10),9(11) </SP>-   estratetraen - 17# - ol to the corresponding #<SP>2,5(10)</SP> - estradiene; and 3- methoxy - 17 - ethylenedioxy - #<SP>1,3,5(10)</SP> - estratriene to the corresponding #<SP>2</SP>'<SP>5(10)</SP>-estradiene. Also, 3 - methoxy - 17# - t - butoxy - #<SP>1,3,5(10),9(11)</SP>- estratetraene is reduced and the product is hydrolysed to 19-nor-testosterone.
Patent GB-218923-A (GB)
Title: Improvements in or relating to spongy or cellular materials and the manufacture thereof
IPC: C08J3/24
Filed: 1923-12-17
Abstract: 218,923. Lefebure, V. Dec. 17, 1923. Porous or spongy india-rubber, resin, cement, plaster, and other plastic compositions are obtained by incorporating with the material an adsorbent substance charged with a gas or a gasgenerating substance, liberating the gas by raising the temperature or lowering the pressure or both, and causing, or permitting the mixture to harden. A suitable adsorbent is silica gel. The adsorbed substance may be a gas, a liquid, a volatile solid, or a substance which is decomposed by heat into gaseous products. Hydrogen sulphide, carbon dioxide, ammonia and ammonium carbonate are mentioned as examples. To prevent premature evolution of gas the particles of adsorbent after being charged may be coated with an impermeable substance such as wax which confines the adsorbed substance until the temperature is raised. Specifications 11624/11 and 185,477 are referred to.
Patent GB-1392598-A (GB)
Title: Anti-skid systems
IPC: B60T8/70
Filed: 1971-07-07
Abstract: 1392598 Aritiskid braking systems DUNLOP Ltd 29 June 1972 [7 July 1971] 31778/71 Heading F2F A vehicle anti-skid system includes means for generating a digital count proportional to the angular velocity of a braked wheel which count is compared with a similar count generated during a previous time interval to obtain a measure of the rate of change of the angular velocity of the wheel which measure is compared with a preset measure proportional to the maximum allowable rate of change, and means to release the brake if the allowable rate is exceeded. The input pulses from a generator attached to the wheel of an aircraft are passed through a pulse doubler circuit 1 and counted in counter 3 during the time interval determined by the presence of pulse tc. At the end of the time interval the count is transferred to down counter 4 and counter 3 is cleared. During the next time interval counter 3 is arranged to count up again while the same pulses are subtracted from the count in down counter 4 to give, at the end of the time interval a count which represents the rate of change of angular velocity of the wheel. This count is stored at S and compared with a preset count representing the maximum allowable rate of change and the output signal from this comparison may be used to control the brakes. If the count remaining in down counter 4 is obviously incorrect the OR gate 6 is enabled to stop the count being transferred to store 5. In a first modification, Fig. 4 (not shown), the first whole count is stored and the next received count subtracted from it to give the rate of change count. In a further modification, Fig. 6 (not shown), the input pulses are supplied to a bi-stable circuit which in one state gates pulses from a high frequency pulse generator into a counter and in its other state disables this connection and clears the counter. The count is inversely proportional to the mean angular velocity of the wheel and is passed through a divider circuit, Fig. 7 (not shown), before being compared with the preset rate. The system may be operated in conjunction with an additional brake producing stage which re-applies the brakes after a skid at a pressure which is dependent on the length of time of the skid.
Patent GB-612119-A (GB)
Title: Improvements in or relating to an electrical signalling system
IPC: G01S1/02
Filed: 1945-11-26
Abstract: 612,119. Electrical control systems. PHILCO RADIO & TELEVISION CORPORATION. Nov. 26, 1945, No. 31812. Convention date, Sept. 1, 1944. [Class 40 (i)] [Also in Group XL (c)] In a signalling system, applicable to range measurement in a radiolocation system, and comprising means for producing a voltage wave whose frequency varies according to the magnitude of a control voltage, means are provided for superimposing an audio-frequency signal of a higher frequency upon the voltage wave and for selecting a recurrent portion of the resultant wave so as to produce an intermittent signal whose recurrence frequency varies according to the magnitude of the control voltage. A positive control voltage, which represents some variable condition, is developed in the unit 18 and applied to the cathode of the gas-filled, saw-tooth wave generating valve 20, so that the frequency of the saw-tooth varies with the control voltage below a certain limiting value thereof, above which the oscillations cease. The oscillation output is mixed with the output of an oscillator 26, to provide a signal as shown in Fig. 2, which is applied to the control grid of valve 31, which is so biassed that a " chopped " wave output, as shown in Fig. 3, is obtained. This chopped" " output is applied over connection 33 to a loud-speaker. Means are provided to control the range over which indications are given. A portion of the control voltage is applied to the control grid of valve 34, the bias of which is variable by means of the potentiometer 41. Thus, when the control voltage is greater than a value which may be selected by varying the tapping of 41, the anode current of the valve 34 becomes so great that its anode voltage falls sufficiently to cut the valve 31 off, so that the " chopped " wave is no longer passed to the loud-speaker.
Patent GB-771497-A (GB)
Title: Improved method for the production of curled yarn
IPC: D02G1/16
Filed: 1954-11-03
Abstract: 771,497. Finishing yarns and threads. ALGEMENE KUNSTZIJDE UNIE N.V. Nov. 3, 1954 [Dec. 3, 1953], No. 31846/54. Addition to 767,835. Class 120 (3). In the method of production of a " curled " yarn of the parent Specification, the mutual influence of the gas stream on the yarn is varied e.g. by intermittently interrupting the supply of the gas stream or varying the speed of the yarn, to produce local nubs or variations in denier at regular or irregular intervals along the length of the yarn. As shown in Fig. 2, yarn is fed into a notch 13 in the body of a suction device 10 and is drawn into and carried through an ejector tube 12 by compressed air injected through a jet pipe 11: the emerging yarn is deflected by a plate 12<SP>1</SP> and is withdrawn in a direction perpendicular to the axis of the tubes 11 and 12 through a guide 17: the nubs are stated to be produced as a result of introducing the yarn at one side of the plane perpendicular to the direction of travel of the supplied yarn and lying in the direction of travel of the gas stream and collecting the yarn at the other side of such plane: the frequency of the nubs varies with the angle between the direction of supply and discharge of the yarn. In the apparatus of Fig. 3, yarn from a package 19 is fed via a guide 20 to the notch in a suction device 18 and, on emerging therefrom, impinges against a plate 21 and is guided to a take-up device 24 driven by a motor 25 through a variable speed transmission 26 : a valve 27 in the air supply line and/or the transmission 26 is varied at regular or irregular intervals, the magnitude of such variation being related to the size of the nubs.
Patent GB-1178049-A (GB)
Title: Non-Destructive Methods of Detecting Flaws
Inventor: IRSAK JOHN EVERETT
IPC: G01N21/91
Filed: 1967-07-11
Abstract: 1,178,049. Testing for flaws or cracks. DAY-GLO COLOR CORP. July 11, 1967, No. 31913/67. Heading G1S. A method of detecting surface flaws in a test body comprises the steps of applying to the surface of the body a coating of an oil-in-water emulsion containing a dye soluble or dispersable in the oil, evaporating water from the emulsion until the emulsion breaks and the residual composition remains in a continuous film, removing the residual composition from the test body, and inspecting the test body for flaws indicated by the composition. In one example the emulsifier comprises mixed Tritors, the oil is kerosene and the dye is MDAC and fluoral; in a modification water is added. In Example 2 the dye is Calco Oil Red BNC, and in Example 3 anionic emulsifier and coupling agents are used. In a coated experiment, a post emulsificating penetrant according to Specification 763,885 is used with cascading fluorescent dyes.
Patent GB-428696-A (GB)
Title: Improvements in or relating to apparatus for heating liquids electrically
IPC: F24H9/12
Filed: 1933-11-17
Abstract: 428,696. Float - actuated valves; spray producers. THOMPSON, L. F., Grafton, Grafton Road, Torquay. Nov. 17, 1933, No. 32077. [Classes 69 (iii) and 135] [See also Group XIII] A water inlet valve 13 for a water-heater is mounted on a spindle 15 operated by a float lever 16. When the valve is lowered water from the pipe 7 flows up through gaps provided between the screw threads of members 12 and 14 and issues as a jet spread out by the head of member 14. In an alternative construction the valve 13 is a hollow member having ports 13<d> and 19 and the float is directly connected to the valve. When the float rises the port 19 rises into coincidence with the supply pipe 7 and the water is allowed to enter and issue as a jet from port 13d.
Patent GB-956972-A (GB)
Title: Improvements in and relating to means for fixing longitudinally shafts, spindles and other parts
Inventor: MEARS CHARLES CHRISTOPHER
IPC: F16B21/08
Filed: 1960-09-19
Abstract: 956,972. Shafts. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 19, 1961 [Sept. 19, 1960], No. 32128/60. Heading F2U. [Also in Division E2] A shaft of resilient material is formed with a slot 3 and projections 4 tapered at 4a to facilitate entry of the projections into the bore of a bushing, the sides of the slot moving together to allow passage of the bushing and then springing apart so that the shoulders 4b prevent reverse movement of the bushing. The shaft may be integral with a cam, pulley or gearwheel which may limit forward movement of the bushing, or a second set of projections may be provided, in which case the slot 3 may be common to both sets. Ribs 7 may be provided to frictionally grip the bushing. The shaft may be made of an injection moulding material such as polypropylene.
Patent GB-639747-A (GB)
Title: Improvements in fountain pens
IPC: B43K27/08
Filed: 1947-12-08
Abstract: 639,747. Fountain pens. BODER, R. Dec. 8, 1947, No. 32276. Convention date, Dec. 10, 1946. [Class 146 (iii)]  In a fountain pen having at least two pen systems selectively brought into writing position and having separate ink reservoirs and filling mechanisms, each system is pushed into operative position by a slide and bolt 6, against the compression of a restoring spring and locked in position by a common sleeve 12 ; the filling mechanisms are operated by a common plunger 26 adjustable from a neutral position to act only upon the filling mechanism of the pen system which is located in the position of use. In the two pen systems shown each system has a body 1 of semi-circular crosssection housing an ink reservoir 3, and fixed to the body is the bolt 6 extending through the outer barrel of the pen and through a locking sleeve 12 so the system can be moved into writing position. The sleeve 12 surrounds the two pen systems and is rotatably biased in one direction by a spring 14 so that, as the bolt 6 is slid along a slot 13 in the sleeve it engages an oblique part 15 to turn the sleeve in opposition to the spring 14. When the pen is fully extended the bolt reaches an enlarged portion of the slot and the spring 14 turns the sleeve so that a part 16 retains the bolt 6 in writing position. Attached to the sleeve 12 is a pin 121 extending through a transverse slot in the pen and turned against, the spring 14 to release the pen system which is thereupon withdrawn by the spring 10. The filling of each reservoir is effected by compressing the reservoir 3 by means of a strip 18 attached to a spring 19, having a tongue 22 which is engaged by a pin 5 axially slidable in a guide 7. Pin 5 is held in a rest position by a compression spring 8 and to fill the pen the pin 5 is displaced by a wing 25 on a spindle 26 extending through a bush 28 at the end of the pen and terminating in a knob 30. The knob 30 is normally urged outwardly by a spring 27 and is rotatable so that a pin 34 attached to the inner face of the knob can enter either of two apertures 35 spaced around the bush 28 thus selectively positioning the wing 25 to engage the respective pin 5 of the pen to be filled. The knob is normally urged into a neutral position by the rotational tension of the spring 27.
Patent GB-736484-A (GB)
Title: Compressor system and moisture separator therefor
Inventor: SCHMIDLIN ALBERTUS ERNEST
IPC: F16T1/12
Filed: 1953-11-20
Abstract: 736,484. Air compressors. SPECIALTIES DEVELOPMENT CORPORATION. Nov. 20, 1953, No. 32283/53. Class 8 (1). A compressor system comprises a compressor 10 the outlet from which is connected to a vent valve 21, which is arranged to be closed by oil pressure developed by a pump 51 driven from the crankshaft 39, and to a liquid separator 12 which includes a drainage outlet 16 controlled by a valve 17 subjected to the pressure of the compressor outlet, and an inlet valve 28 leading to a separating chamber 13 having an outlet connected through a non-return valve 31 to a reservoir 29. Thermostatically controlled heaters are provided in the separator 12 to prevent freezing of the moisture. Specification 688,739 is referred to.
Patent GB-282551-A (GB)
Title: Improvements in or connected with electric lamp holders or sockets
IPC: H01R33/46
Filed: 1926-12-21
Abstract: 282,551. Tucker & Co., Ltd., J. H., Tucker, J. B., and Martin, T. R. Dec. 21,1926. Holders.-In holders of the kind wherein the contact plungers b slide directly in bores in the insulation block a, means are provided for positively preventing rotation of the plungers in the bores. In the construction shown, this means comprises a square part b<1> formed on the plungers. The plunger springs bear at one end on the parts b<1> and at the other on shoulders a<2> projecting into the bores. The plungers are formed in one piece with heads b<3> in which the supply leads are fixed, and with connecting necks b<2> engaged by washers which rest on the shoulders a<2> and support the plungers. The supply leads are gripped between an upstanding part a<3> of the block a and a bush e' mounted in the cap of the holder.