baber/WOPTO huggingface dataset:
Patent GB-767944-A (GB)
Title: Improvements in or relating to electrical apparatus for separating oil from aqueous liquids
IPC: C10G33/08
Filed: 1953-06-04
Abstract: An electrostatic separator, of the type described in Specification 702,986, for separating oils from aqueous liquids, is modified by the provision of a by-pass filter unit for the outlet conduit and means responsive to the depth of separated oil for controlling the flow of mixture to be separated so as to maintain the said depth constant. As shown, the mixture is pumped to the cylindrical vessel 10 through a pipe 11 under the control of a cock 12, and issues from a perforated distributing nozzle 15 within an inverted conical baffle 16, 17.  The latter constitutes the cathode in a H.T. circuit made through pipe 11 and vessel 10, the anode being a perforated conical baffle 19 mounted on insulated blocks 48 and connected to a supply cable 25 through an insulator 26 and a conducting rod 21, the latter passing through insulating glands 23, 22 in a support 24 and a plate 13 respectively.  The separated settled liquid passes through an outlet 29, an electromagnetic valve 31, and the static riser pipe 30, the latter being extended above the vessel to maintain the pressure of liquid therein.  The valve 31, <PICT:0767944/III/1> which controls the mixture feed, is connected to one side of a power supply through a lead 50 and one of two contacts 38, 39 insulated from the vessel. Connection to the other side of the supply is through the casing of the vessel.  In operation, the circuit for valve 31 is made when aqueous conducting liquid covers either of contacts 38, 39, the circuit being broken to close the valve when the oil-liquid interface falls below the contact.  A required depth of separated oil is thus maintained above the liquid, the two contacts providing alternative settings by actuation of their interconnected switches 41, 51, one of which is open when the other is closed.  One or more deflecting baffles 42 may be provided below the contacts.  The oil outlet through the pipe 43 is controlled by a float 46 which moves with the oil-liquid interface and operates a valve 45 through linkage 52. Traces of oil in the separated liquid, as observed in a sightglass 32 in pipe 30, may be removed in a bypass filter 33 which contains a readily removable cartridge of bauxite or like material and has control cocks 36, 37.  An immersion heater 47 maintains the oil fluid, and steam-heated coils 71, 72 may be provided in which an upper coil 71 may have more convolutions than the lower one 72.  A pressure gauge and a thermometer may also be provided.  In a modification baffle 19 may be connected to cable 25 through a flexible conductor 27 so that the anode-cathode separation may be varied by means (not shown) comprising (1) a rack fitted to the end of rod 23 which is extended above the plate 13 for engagement with a pinion (2) a cable attached to the baffle and passing over a pulley outside the vessel.  In a second modification spreading discs may replace the distributing nozzle 15.
Patent GB-793495-A (GB)
Title: Copper-containing trisazo dyestuffs
IPC: C09B35/40
Filed: 1956-05-17
Abstract: The invention comprises dyestuffs of formula <FORM:0793495/IV (b)/1> where X is H, SO3H or COOH which may be made by coupling tetrazotized 4,41-diaminodiphenyl with 1 mol. of phenol-2-sulphonic acid and 1 mol. of the copper complex of a dyestuff obtainable from diazotized 2-aminophenol or its sulphonic or carboxylic acid derivatives and resorcinol.  In an example the copper component used is derived from phenol-4-sulphonic acid. Specification 12932/15, [Class 2 (iii)], is referred to.
Patent GB-1532106-A (GB)
Title: Electrostatographic reproduction machines
IPC: G03G21/14
Filed: 1977-04-14
Abstract: 1532106 Control of recording XEROX CORP 14 April 1977 [15 April 1976 (3)] 15480/77 Heading G4H Parts of an electrostatigraphic machine are controlled from a data processing unit via interface units having shift registers and decoders, in response to status signals received by the data processing unit, the latter unit being surrounded by a shield through which signals are sent using optical-electric couplers, comparison of successive samples being used in the case of input to the data processing unit.
Patent GB-1015082-A (GB)
Title: Improvements in or relating to dental handpieces
Inventor: HOFFMEISTER ERICH
IPC: A61C1/06
Filed: 1963-04-19
Abstract: A dental handpiece is powered by an electric motor cooled by a water jacket and the water, after passing through the jacket, is discharged against the drill, in order to cool that also.  The motor 5 is preferably housed in an inner sleeve 1 so that the cavity 16 to receive the cooling water is formed between the outer casing of the motor and an annular recess formed in this sleeve.  Water is led into this through a tube 15 and thence through an outlet tube 17 which is connected by a flexible plastics tube 33 to a nozzle 32 directed towards the drill 30. The nozzle 32 is attached to an outer sleeve 19, formed in one piece with the head portion 21, and, when desired, this sleeve may be withdrawn, after disengaging a bayonet catch 20, and replaced by a straight handpiece.  In another construction the motor is located approximately midway along the handpiece to avoid the possibility of lubricant from the gearing 37 reaching it, while, in yet another form the motor is in a separate housing attached to the rear end of the handpiece.  This allows the use of a larger motor and/or cooling jacket, to provide more effective cooling.
Patent GB-672485-A (GB)
Title: Improvements in or relating to a gas fuelled, high compression four stroke cycle internal combustion engine
IPC: F02D9/00
Filed: 1950-06-22
Abstract: 672,485. Regulating. COOPER-BESSEMER CORPORATION. June 22, 1950 [July 2, 1949], No. 15602/50. Classes 7(ii) and 7(vi) [Also in Group XXIX] A supercharged gas engine is provided with means to altering the valve operating mechanism to produce a large overlap between inlet valve opening and exhaust valve closing at high load con. diticns. An exhaust-driver supercharger 23 supplies air to the inlet passage 9, controlled by the inlet valve 5 and the gaseous fuel is fed through a passage 11 to a chamber 12 communicating with the chamber 9 through a vave 14 opened by a collar 16 on the stem of valve 5. The valve 5 and exhaust valve 20 are actuated through rods 19, 19a, Fig. 2, by one set 27, 29 of cams at light loads and another set 27a, 29a, at heavy loads, the cam shaft 25 being axially movable by means of an air pressure operated piston 43 actuating a pivoted sector 38 connected to the shaft 25 by a pin 49. At light loads a switch 52 remains closed, whereby a solenoidoperated pilot valve 50 is positioned so that the cams 27, 29 are in operation. At heavy loads e.g. 80 per cent full load, a governor 31, controlling a throttle valve in the pipe 11, actuates a pivoted lever 56 through a stop 55 and moves a cam 59 to break the switch 52, whereby the cam shaft 25 is moved to bring the cams 27a, 29a into operation. On reduction of load, thegovernor arm 54 does not contact a stop 61 to actuate cam 59 to close the switch 52 until the load has dropped a considerable amount e.g. to 40 per cent full load. The governor- 31 may also control a throttle valve in the air pipe 10. A dash-pot 47 is provided on the end of the piston-rod 42.
Patent GB-645917-A (GB)
Title: Improvements in or relating to atomising apparatus
IPC: B05B7/00
Filed: 1948-06-10
Abstract: 645,917. Spray burners. CHAUVIER, J. I. G. June 10, 1948, No. 15624. Convention date, June 11, 1947. [Class 75(i)] [Also in Group XXIX] Liquid fuel is fed from a reservoir 4 to a reservoir 14 by a volumetric pump 13, or similar metering device, through a pipe 6 and a non-return valve 7. When it reaches a pre-determined level in the reservoir 14 a float 11 opens a valve 18 and air is drawn through an inlet 17 and branch pipe 8, and forced through the fuel forming a foam, or creates a pressure within the reservoir 14. A local fuel circulation is obtained by opening a valve 10 in a pipe 9. The foam and air under pressure are fed through pipes 19 and 20 respectively to a spray burner 22; the fuel passes between a sleeve 23 and an adjustable sleeve 24 and is atomized by the central air jet. The atomized jet passes into a Venturi within an adjustable sleeve 26, a variable amount of air being thereby drawn through orifices 25 to surround the jet.
Patent GB-593891-A (GB)
Title: Improvement in electro-perforation of sheet material
IPC: B26F1/28
Filed: 1945-06-19
Abstract: 593,891. Spark - gap apparatus. COTTRELL, H. L. (Meaker, J. W.). June 19, 1945, No. 15638. [Class 39 (i)] [Also in Group VIII] The process for forming minute perforations in sheet material as described in Specification 558,834, in which a series of electrical arcs are made to penetrate the dielectric material is modified for dealing with certain materials of high dielectric strength such as leatherette, rubberized fabrics, compound fabrics or multiple plies of paper, by reducing the dielectric strength of the material at a plurality of spaced points by mechanically perforating or piercing the material prior to or substantially simultaneously with the electrical perforation. In one form of apparatus, Fig. 3, the mechanical piercing of a web S, is effected by a series of nine spaced discs 15 on a shaft 16 fitted with pointed pins 17 which form nine rows of incisions in the web S which passes to nine pairs of electric arc devices arranged across the web in three sets as 18, 18<1>, 27, 27<1>, 30, 30<1> and other sets not shown. Nine discs 15 are arranged side by side and one arc set registers with each disc 15. The arc devices are arranged in series and each series is energized by a secondary of a transformer. The primaries of the transformers are supplied by a common main. In a modification, Figs. 7 and 8, the arcs are produced by wheel-like electrodes 55, 56, 57, 58 on a shaft 35 co-operating with similar electrodes 43, 44, 45, 46 on an upper shaft 34, and pins 47 or other penetrating tools are fitted to the upper electrode. Alternate electrodes on both shafts are separated by conducting and insulating rings, so that the current can pass from one conductor 65 through one set of wheel-like conductors to a second conductor 66. The conductors 65, 66 are supplied with alternating current preferably from transformers I', II<1>, III<1>, IV<1>, V<1>, Fig. 7, which shows an arrangement in which are arranged five sets of wheel-like conductors. These are staggered to an extent equal to a fifth of the distance between each pair of conductors, so that rows of perforations close together are formed, indicated by reference numerals 70, 71, 72, 73 ... 79, Fig. 7.
Patent GB-292765-A (GB)
Title: Improvements relating to wind-screen cleaners
IPC: H02K7/075
Filed: 1927-06-13
Abstract: 292,765. Conill, F. O. June 13, 1927. Motors with unwound iron armatures. - In a device for actuating a windscreen cleaner comprising a wind vane mounted on the shaft of an electric motor, means are provided whereby the electric circuit of the motor is opened when the speed of the wind vane increases beyond the normal speed of the motor. As shown, a wind vane A is secured to the motor shaft which is in two parts B, C, the part C passing through pole pieces D carrying windings E, E<1>. The motor comprises a plate F in the form of a cross, with laminations at the extremities. Upon the shaft C is slidably mounted a ring H integral with a tapering member I the narrow portion of which is of square section. As the shaft C rotates, the member I normally acts in conjunction with a plate J to break the circuit of the motor at the contacts K four times during a revolution of the shaft. When, however, the wind vane A is actuated so as to increase the speed of the shaft C beyond its normal speed due to the motor, the ring H and the member I are drawn in a direction away from the plate J by means of centrifugally-acting weights G, so that the contacts K are maintained open until the speed decreases to normal.
Patent GB-317914-A (GB)
Title: Improvements in or relating to twisted-in-wire brushes
IPC: A46B7/04
Filed: 1928-05-29
Abstract: 317,914. Ainley, F. May 29, 1928. Strengthened handles; fixing by cement or molten metal and screwed joints. - A twisted wire brush has the stem secured in a screw threaded ferrule by plaster - of - paris, molten metal &c., and a handle detachably carried by the ferrule. The ferrule 13 is in the form of a screw-threaded tube, in which the ends 10 of the twisted wire brush foundation 11 are secured by white metal 14 poured in at the front end of the ferrule whilst the latter is supported upright on a plate with the wire ends positioned therein. The handle 15 is provided with an internally-threaded socket to receive the threaded ferrule. A sloping shoulder 19 between the threaded part of the ferrule and the plain end 18 abuts against a flange 17 on a ring 16 round the end of the handle. The ferrule 13 may be tapered to enable it to fit handle sockets of slightly varying size, and may be provided with an integral or separate apertured front wall through which the twisted wire ends are inserted, the molten metal in this case being poured in from the rear end.
Patent GB-219461-A (GB)
Title: Improvements in towing block for fishing purposes
IPC: A01K73/06
Filed: 1923-06-18
Abstract: 219,461. Ritchie, J. June 18, 1923. Pulley-blocks.-A snatch block comprises a substantially rectangular frame of cast steel formed as a main part D and hinged top part E which carries the suspension eye. The usual pivoted link G opens to admit the rope. The main frame part D carries two pulleys A, separated by a division-plate formed in two parts, the lower part B being integral with the main frame D, while the upper part C is integral with the hinged top frame E. The upper edge of the member B follows the contour of the pulleys and is rounded as shown to engage the hollowed under side of the member C.
Patent GB-1127501-A (GB)
Title: A method of testing
Inventor: JENDER BO
IPC: G06G7/28
Filed: 1966-04-07
Abstract: 1,127,501. Selective signalling. PROCESSOR A.B. 7 April, 1966, No. 15784/66. Headings G4D and G4H. A product is periodically tested, and signals corresponding to the test results are transmitted to the appropriate ones of stores M 1 -M n  (each store, for example, being allocated to a particular range of signal amplitudes), the stores M 1 -M n  are cyclically read out by a commutator K to produce a signal representing the number of input signals to each store in turn and having an initially rising and subsequently falling stepshape, and a filter F removes the harmonics producing the steps so as to obtain a smoothly varying signal representing the distribution function of the test results. The variable tested may be basis weight or moisture content of paper. The distribution function may be displayed on a C.R. tube O, or the output of filter F may be applied to a threshold device producing pulses of duration corresponding to the dispersion and mean value deviation, a rectifying meter I being deflected proportionally. Use of a high speed printer is also mentioned. The outputs of stores M 1 -M n  may be connected in series as shown, and commutator K may be arranged to scan outputs L first in one direction, then in the other to produce the desired distribution function.
Patent GB-1127387-A (GB)
Title: Improvements relating to electrical circuits for time-sharing systems
Inventor: STREET JOHN
IPC: G08C15/06
Filed: 1966-04-12
Abstract: 1,127,387. Multiplex signalling systems. EVERSHED & VIGNOLES Ltd. 4 July, 1967 [12 April, 1966], No. 16069/66. Heading G4H. A receiver for a time-sharing multiplex system, e.g. of the kind described in Specification 806, 515, comprises a first transistor amplifier 15, 16 connected to the input 11, a relay contact 17 which causes a low-leakage capacitor 19 to be charged by the amplifier, a second amplifier 20-23 having its input connected across the capacitor, and an indicator connected to the input 11 and to the output of the second amplifier, the arrangement being such that the capacitor is charged when a signal appears at the input 11, while switch 17 is closed, to maintain the current to the indicator through the second amplifier after the input signal has ceased .The switch 17 is controlled by relay coil 18 energized by a signal at inputs 26.
Patent GB-635782-A (GB)
Title: Improvements in or relating to circuit arrangements for time sub-division
IPC: H03B19/10
Filed: 1947-06-18
Abstract: 635,782. Pulse frequency-multiplying circuits. PHILIPS ELECTRICAL, Ltd., (formerly PHILIPS LAMPS, Ltd.), and BROWNE, G. D. June 18, 1947, No. 16088. [Class 40 (vi)] A circuit for time sub-division comprises at least one frequency multiplier stage which is supplied with synchronizing signals from both a higher frequency source which determines the position of the change over points in the cycle and from a lower frequency source which determines the position in time at which the complete cycle occurs. The Figure shows two frequency doubler multivibrator stages VI, V2 ; V3, V4 of a time sub-division circuit. Any given stage, e.g. V1, V2 is synchronized by signals from both the preceding lower frequency stage applied at A which synchronizes the beginning and end of each complete cycle of the multivibrator and from the succeeding higher frequency stage applied at B which determines the intermediate change-over point in each cycle. The output signals from any point in the circuit thus have a predetermined phase relationship.
Patent GB-557956-A (GB)
Title: Improvements relating to apparatus for producing homogeneous materials
IPC: C11D13/14
Filed: 1942-11-16
Abstract: 557,956. Mixing machines. LEVER BROS. & UNILEVER, Ltd. Nov. 16, 1942, No. 16163. Convention date, Nov. 29, 1941, [Class 86] In a device for producing -homogeneous material comprising a jacket 2 enclosing a pair of rotating intermeshing screw members 1a, 1b of the kind described in U.S.A. Specification 2,048,286, for agitating, working and conveying a mass of material from one end of the jacket to the other, a rotary impeller pump 15a, 15b at one end of the jacket is driven by torque-responsive variable speed transmission to feed the mass at uniform pressure into the jacket. The preferred transmission comprises a plurality of rods 22d each reciprocated by an eccentric and actuating a carrier 19b for a number of pawls 20a meshing with a ratchet wheel 18d secured to the driving shaft of the impeller. Yield is provided by a spring 27d on each rod, and the eccentrics are angularly spaced around their driving shaft to give substantially continuous drive. The device is adjusted to feed the mass more than the screws can convey it away. the springs 27d then yield at each downward movement of the rods and prevent the desired pressure being exceeded. The outlet end of the casing 2 has a pair of sleeves 37, 38 each formed with a slot 38a. 39 of which the first tapers transversely. The sleeves are relatively adjusted with the aid of an escape port 40, and then turned without altering their relative position to align with a delivery branch 41, leading to a conduit 46 vibrated by an air hammer 58. A " sylphon " bellows 61 controls a pressure relief valve 60.
Patent GB-544719-A (GB)
Title: Improvements in plants for producing a mixture of hot air and combustion products under pressure
IPC: F02C6/04
Filed: 1940-11-09
Abstract: 544,719. Generating mixtures of hot air and combustion products under pressure. AKT.- GES. BROWN, BOVERIE, & CIE. Nov. 9, 1940, No. 16284. Convention date, July 24, 1939. [Class 51 (i)] In a plant for producing a mixture of hot air and combustion products under pressure comprising a compressor a, Fig. 1, driven by a turbine g supplied with gases from a combustion chamber d which is supplied with air from the compressor through a pipe c and fuel from a pipe e, part of the gases produced in the combustion chamber are supplied to the turbine through the pipe f and part are supplied through a pipe i for use in industrial plant such as blast furnaces. Instead of the exhaust gases from the turbine passing to the atmosphere as shown in Fig. 1 they may be utilized for preheating the air supplied by the compressor to the combustion chamber as shown at K, Fig. 2. Additional heat may be supplied to the air passing to the turbine and to the air for the industrial plant by arranging fuel nozzles p, q in the pipes i, f. Cold air from the discharge pipe of the compressor may be led through separate valve controlled pipes to the pipes i, f.
Patent GB-972440-A (GB)
Title: Process for the preparation of dialkanolamides
IPC: C07C233/16
Filed: 1962-04-30
Abstract: Dialkanolamides of C10- 18 fatty acids are prepared by gradually adding an ester of a C10-18 fatty acid to a dialkanolamine under essentially anhydrous conditions at a temperature of 200-280 DEG F. in the presence of at least 0.2% by weight of the reactants of an alkali metal catalyst, the mole ratio of amine to ester being at least 1.1:1, the reaction conditions being maintained so that at all times during the reaction there exists an excess of amine relative to ester and an excess of liberated alkanol relative to ester-amide by-product, the reaction mixture thereafter being cooled over a period of at least about 3 hours from the reaction temperature to about 120 DEG F. The esters are preferably derived from coconut fatty acid, the methyl ester being particularly suitable.  The alkanolamine is preferably diethanolamine. Examples are given. Specification 883,733 is referred to.
Patent GB-499305-A (GB)
Title: Improvements in or relating to exercising apparatus
IPC: A63B21/06
Filed: 1937-06-14
Abstract: 499,305. Exercising-apparatus. LONGBOTTOM, J. E. June 14, 1937, No. 16417. [Class 132 (i)] A weight for use with bar-bells or dumbbells comprises a cylindrical tinned-iron container 1 having a slip-on lid 2 and a tube 3 running through the centre to enable the container to be fitted on a bar, the container being filled with concrete and afterwards sealed by riveting over the lid the protruding end of the tube.
Patent GB-682554-A (GB)
Title: Collapsible and transportable squash court
IPC: E04H3/14
Filed: 1950-06-30
Abstract: 682,554. Squash courts. SEWARD, G. S, June 29, 1951 [June 30, 1950], No. 16442/50. Class 20(i) A squash court comprises a number of transportable elements adapted to be readily assembled or dismantled in situ, the walls comprising a number of sheets 15 of wall board material, e.g. asbestos or plastic, secured to a steel or light metal tubular framework 10. The panels 15 are fixed by bolts 16 and clamps 17 to the framework 10, vertical hardwood strips 18 separating the panels 15 from the framework 10 the points of intersection of which are secured by bolts 19 and aluminium spacers 20. The floor consists of nine prefabricated sections bolted together, each section comprising joists resting on carriers and supporting wooden floor strips.