baber/WOPTO huggingface dataset:
Patent GB-1005987-A (GB)
Title: Improvements in or relating to filters
Inventor: MARVEL HARVEY ELSWORTH
IPC: B01D29/00
Filed: 1963-09-23
Abstract: 1,005,987. Filter. BOWSER Inc. Sept. 23, 1963, No. 37367. Heading BID. A flexible woven sleeve 44, supported by an internal sintered core 56, Fig. 2, is of larger cross-section than the core so that during backwashing the sleeve can expand outwardly to thereby break up a cake of filter agent formed on the sleeve. The sleeve 44 is closely woven polyethylene, the core 56, which has a starshaped cross-section, comprises sintered pellets of acrylonitrile-butadiene-styrene. The sleeve 44 is attached to end plates 46, 50 by drawstrings which fit grooves therein. A number of these filter elements 24 screw into plate 61, Fig. 1, in filter case 10. A precoat pot 20 contains a slurry of diatomaceous earth which is drained into chamber 22 to form a coat on the various sleeves 44 prior to beginning filtration. Thereafter liquid (e.g. water) enters inlet 12 and leaves outlet 14, flowing through the cakes of earth on sleeves 44 and up central apertures in cores 56. This flow is reversed to remove the filter agent cake, most of the pressure drop being across the sleeve 44 rather than core 56, the sleeve billowing outwards, and the contaminated cake being flushed out through inlet 12 to a sump. Gauges 16, 18 and valves 42, 40 record pressure and vent respectively chambers 22, 29.
Patent GB-1156253-A (GB)
Title: A Clutch Brake Mechanism
IPC: F16D41/069
Filed: 1967-08-15
Abstract: 1,156,253. Ratchet clutches and brakes; clutch brakes. NATIONAL CASH REGISTER CO. 15 Aug., 1967 [2 Sept., 1966], No. 37377/67. Headings F2C, F2E and F2L. A clutch-brake for use in a high-speed card printer comprises two sets of sprags 41, 40 (Fig. 1) or rollers 65, 64 (Fig. 5) by which respectively a driven shaft is connectible to driving or fixed drums, positioning means selectively acting simultaneously on both sets of sprags or rollers so that when one set is operative the other is not and vice versa. In Fig. 1, pairs of the sprags 41, 40 are fast on rods 42, have heel ends 43 seating in longitudinal grooves 27 in a centre 26 of a driven shaft 25, and have oppositely inclined engaging ends 45, 44 respectively co-operating with driving and fixed drums 20, 23. The sprag pairs are circumferentially biased for clutching engagement of the sprags 41 and the driving drum 20 by bias springs 38 connected between plates 35 fast with the driven shaft 25 and plates 31 having grooves 32 accepting the ends of the sprag rods 42. A control plate 46 has grooves 77 which accept the centre portions 73 of the sprag rods 42. The driving drum 20 rotates in the same direction as the circumferential bias on the plate 31. To declutch and brake the driven shaft the control plate 46 is held from rotation to oppose the bias of the springs 38 thereby disengaging sprags 41 from the driving drum 20 and engaging the sprags 40 with the fixed drum 23. The control plate 46 may be held by a friction device, e.g. shoes, clamps, bands, or a detent such as a selectively operated latch (48) arranged to engage a lug 47 of the control plate. In Fig. 5, the sets of rollers 65, 64 are caged between fingers 58 projecting from both sides of a control spider 57 and are engageable with circumferentially offset polygonal sections 66, 67 of a driven shaft 51 and respectively a driving drum 75 and a fixed drum 49. The control spider is connected by cushioning springs 59 to a control plate 56. The control spider is circumferentially biased to effect clutching engagement of the driving drum 75 and the driven shaft 51 through the rollers 65 by electrical or magnetic means, or as shown, by bias springs 70 connected between a plate 71 fast with the driven shaft and a plate 68 connected to the spider by studs 69 engaging between pairs of the fingers 58. To declutch and brake the driven shaft an intercepting element engages a lug 63 of the control plate 56, this stopping action being transmitted by the cushioning springs 59, acting as shock absorbers, to the spider 57 to oppose the bias of the springs 70 and thereby disengage the rollers 75 from between the driving drum 75 and the output shaft and engage the rollers 64 between the fixed drum 49 and the output shaft.
Patent GB-784478-A (GB)
Title: Hydrocarbon purification
IPC: C07C7/171
Filed: 1955-12-30
Abstract: Normally liquid aliphatic hydrocarbons containing 0.01 to 1.0 per cent by weight of lower dialkyl sulphates are treated to remove the dialkyl sulphates by intimately contacting the aliphatic hydrocarbons with concentrated sulphuric acid and an isoparaffin containing up to 6 carbon atoms, allowing the mixture to separate into a hydrocarbon layer and an acid layer and draining off the acid layer.  The process is preferably carried out at 30-150 DEG  F. using isobutane or isopentane as the isoparaffin.  Sufficient pressure is maintained to keep all the reactants in the liquid state.  In examples, the process is applied to the desulphurization of n-heptane and an alkylated gasoline having a molecular weight of 114.
Patent GB-900265-A (GB)
Title: Improvements in or relating to devices for emptying filled containers such as milk cans
IPC: B65G65/23
Filed: 1960-11-01
Abstract: 900,265. Tipping churns. HUBERT & CO. MACHINEFABRIEK N.V., W. Nov. 1, 1960 [Nov. 2, 1959], No. 37569/60. Class 78 (4). [Also in Group XVII] A device for inverting filled containers, e.g. milk churns 5, to empty them, comprises a churn receiving holder 1 and a delivery holder 2 fixed respectively to shafts 3, 4 mounted in a frame (not shown), shaft 3 being coupled by an arm 12 and a rod 11 to a pin 10 on an arm 9 which is fixed to the shaft 8 of a flywheel 7 and the shaft 4 being coupled by an arm 19 and a rod 18 to an arm 17 of a double arm lever 14, rotatably mounted on a shaft 16, the other arm 13 of which has a slot 15 in which slides the pin 10. In action, the device is driven by a motor, the pin 10 rotating at constant speed in the direction of arrow A. In the first half-cycle of pin 10 the arm 12 is pulled downwards tilting the holder 1 in an anti-clockwise direction. Simultaneously, the arm 13 is moved downwards by the action of the pin 10 causing the arm 19 to be pushed upwards tilting the holder 2 in a clockwise direction, the holder 2 reaching its fully tilted position before holder 1 so that a churn support 4<SP>1</SP> does not foul the churn 5. By the time the holder 1 reaches its fully tilted position the holder 2 is already returning and at the instant that the two holders are equally inclined the support 41 engages the churn 5 which slides from holder 1 to holder 2. When the holder 2 returns to its initial position the churn will have been inverted and its contents will have run out. When the holders 1, 2 return to their initial positions the drive motor switches off and a conveyer is automatically advanced so that the inverted churn 5 is removed from the holder 2 and a full churn is placed in the holder 1. The drive motor then restarts and the cycle repeats.
Patent GB-375891-A (GB)
Abstract: 375,891. Wireless receiving apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and MATHIEU, G. A., 3, Mayfield Gardens, Shirehall Park, both in London. April 7, 1931, No. 10298. [Class 40 (v).] A receiver comprises metal sub-panels carrying components and inserted in screening boxes mounted in a rack. As shown a telephone panel A, Figs. 1 and 2, carries screening boxes C spaced therefrom by bushes E soldered to the boxes, which are provided with grooves to receive a sub-panel F. The space between the panel and screening boxes houses the screened energy-supplying conductors permanently connected to socket members in insulating blocks with which plugs 10, Fig. 7, on the sub-panel F are adapted to engage. The screening boxes C are surrounded by the usual iron casing B with an air-space therebetween. The coil 2 arranged on one side of the sub-panel F may be plugged into carrier members 5 projecting therethrough and attached to the stators of ganged condensers 3 arranged on the other side of the panel. A sub-frame 6 supports valve holders 7 and houses other components. Coupling condensers 8 are attached to the stators of condensers 3 and comprise interpenetrating cylindrical members 8a, 8b, Fig. 5, adjustable by sliding on an insulating shaft 8c and fixed thereto by grub-screws 8d. When triodes are employed the coupling and neutralizing condensers may be combined, a common electrode 8e, Fig. 3, co-operating with a slidable electrode 8a, forming a coupling condenser and a further electrode 8g forming a neutralizing condenser. The latter is threaded and upon rotation moves along the central shaft 8h for adjustment of capacity. The portion 8e is fixed to an insulating bush 8f on the shaft 8h. The valves of one stage project through tubes D into the screening box of the next stage and the boxes may be provided with apertures through which electrostatic or electromagnetic coupling may occur as described in Specification 374,978.
Patent GB-1442247-A (GB)
Title: Fou-stroke internal-combustion engine
IPC: F02B75/22
Filed: 1974-08-28
Abstract: 1442247 IC engines - exhaust gas treatment DAIMLER-BENZ AG 28 Aug 1974 [6 Sept 1973] 37623/74 Heading FIB The invention relates to a four-stroke I.C. engine having spark ignition in which provision is made for supply of air under pressure to the exhaust ducts. The cylinder head 11 of a V-type engine is formed with an air supply duct 7 connected to receive air from a blower (1), the duct 7 extending to an open-sided groove 15 formed in the head and extending longitudinally at the induction passage side. The groove is covered at its open side by the flange 16 of the induction passage assembly 13 and is connected to the separate exhaust ducts 8 through transverse bores 17. The groove 15 is also connected by a duct 9 to the groove 15' formed in the other head 11', this groove 15' being similarly closed by a flange 16 and connected by bores 17  to exhaust ducts 8. The induction passage assembly 13 comprises also induction pipes 18, 18'.
Patent GB-936362-A (GB)
Title: Device for the support of rapping bars for electrodes in electrofilters
IPC: B03C3/76
Filed: 1961-10-20
Abstract: 936,362. Electrostatic precipitators. SVENSKA FLAKTFABRIKEN A.B. Oct. 20, 1961 [Oct. 20, 1960], No. 37728/61. Class 117. In an electrostatic precipitator comprising spaced parallel collecting electrodes 2 interleaved with ionizing electrodes 3, the groups of electrodes 2, 3 are each respectively associated with a copper bar assembly 9, 10, each comprising two flat, parallel bars 11, 12 which flank lugs 14 depending from the associated electrodes and are interconnected by spacers 13 which also flank the lugs 14 to impart rapping motion to the electrodes, the bars 12 being supported on the lugs 14 of the end electrodes of the group by resting on pins or bolts 15 extending through clearance holes 16 in the lugs, the pins or bolts having a length so as not to project beyond the outer faces of the two bars 12 and having a central peripheral groove 17 which keys with the lower edge of the hole 16 under the weight of the bars 12. This arrangement of the pins or bolts 16 provides for ready dismantling of the rapper bars from the electrodes for servicing purposes.
Patent GB-898629-A (GB)
Title: Current overload protective circuits
IPC: G05F1/573
Filed: 1959-11-06
Abstract: 898,629. Automatic voltage control systems. CANADA, MINISTER OF NATIONAL DEFENCE OF. Nov. 6, 1959 [April 13, 1959], No. 37763/59. Class 38 (4). [Also in Group XL (c)] In an automatic D.C. voltage stabilizer of the kind in which a transistor is connected in series between source and load, the emitter current and the emitter collector voltage of the transistor are automatically limited. Transistors J1 J2 in parallel are in series between a D.C. supply (not shown) and a load (not shown) to be connected in parallel with resistors R14, R15. The load voltage is compared with the voltage of an avalanche diode DA1 by a pair of transistors J6, J7 which control the base currents of transistors J1, J2 via cascaded emitter-followers J5, J4. The collector of transistor J5 is connected to an auxiliary source of negative bias by a potential divider R27, R28. An avalanche diode DA3 is connected to limit the voltage across transistors J1, J2. A further transistor J8 is connected between the base of transistor J4 and the negative output line, the base of transistor J8 being connected to a tapping point on the emitter resistors R22, R23 of transistor J4 so that J8 is normally non-conducting. The regulating transistors J1, J2 are in series with resistors R1, R2 respectively so that an increase in emitter current of J1 or J2 causes the emitter voltage to go more negative, hence the base voltage goes more negative and with it the emitter voltage of J4. This in turn makes the base of J8 more negative and J8 conducts to reduce the input signal to J4 and so reduce the current passed by J1 and J2. The collector of J8 may alternatively be connected to the base of J5. In another embodiment, Fig. 2 (not shown), the further transistor J8 is normally cut off by connecting the emitter to the auxiliary bias source, and the collector current controls the input signal to J5.
Patent GB-855077-A (GB)
Title: Hatch covers for ships
Inventor: WIENERS FERDINAND
IPC: B63B19/18
Filed: 1957-12-04
Abstract: 855,077. Hatch covers. ROSSLAUER SCHIFFSWERFT VEB. Dec. 4, 1957, No. 37769/57. Class 113. A hatch cover comprises a number of sections 1 the forward edge of each having a downturned flange 2 which may engage an upturned flange 4 terminating a downwardly sloping portion of the rearward part of an adjacent section. Each section has a roller 8, on each side and disposed towards the rear edge, engaging a guide rail and rollers 7 arranged perpendicularly to the rollers 8 and engaging vertical guide surfaces. The end section 11 is pivoted to the coaming and section 1<SP>11</SP> is attached to a cable 6. By pulling cable 6 to the right, the section 1<SP>1</SP> may be released and opened and movement of the cable to the left causes the sections to override as shown in Fig. 3. Bearing members 3 are provided between the sections. The hatch has a central beam and two covers are arranged, one on each side sloping downwardly.
Patent GB-901630-A (GB)
Title: Improvements in or relating to the removal of nitric oxide from gas mixtures
IPC: C10K1/10
Filed: 1958-08-27
Abstract: The concentration of nitric oxide in a gas mixture is decreased, at least to a level at which any NO still remaining is not deleterious in use, by treating said gas mixture with an aqueous solution of hypochlorous acid, chlorous acid, or sodium chlorite, the NO being oxidized to higher oxides or oxyacids of nitrogen, e.g. NO2, HNO2, and HNO3.  The gas mixture may be town gas, producer gas, coke oven gas, coal gas, "convert gas", or flue gas.  When the gas mixture is free of carbon dioxide, or contains it as an undesired constituent, the preferred treatment is with a sodium chlorite solution of pH 7 to 12 whilst, if CO2 is to be retained in the gas mixture, the pH is desirably 3 to 6.  After treatment, the gas mixture may be scrubbed with an aqueous alkaline scrubbing solution to remove the products of oxidation of NO.  The aqueous solution of HClO, HClO2 or NaClO2 may be circulated between the top and bottom of a scrubbing tower, and a second tower may be provided for ensuring the purity of the scrubbed gas.  When the scrubbing capacity of the first tower is exhausted, the second tower may be used as the primary scrubber, and the first tower replenished with fresh scrubbing solution and used as the secondary tower.
Patent GB-619808-A (GB)
Title: An improvement in or relating to means for raising from the ground the front wheels of vehicles
IPC: B60S9/06
Filed: 1946-12-28
Abstract: 619,808. Vehicle supports. BROWN TRACTORS, Ltd., D., and ASHFIELD, H. E. Dec. 28, 1946, No. 37957. [Class 79 (iii)] An arrangement enabling either front wheel of a vehicle, e.g. a tractor, to be lifted from the ground comprises a front axle mounted so that it can pivot about the longitudinal centre line of the vehicle and means whereby the distance between either end of the axle and the respective side member of the chassis frame can be varied at will. In Fig. 2, the front axle a is pivoted at c to the tractor frame whose side members b are each threaded to receive a bolt d or e. On rotating one bolt, e.g. by a detachable ratchet lever f, the axle is caused to pivot about c as shown, whereby one wheel is raised from the ground. Instead of bolts d or e, a plunger g, Fig. 3, actuated by cam h and hand lever j may be employed. Alternatively, the axle may be connected by a connecting link to a hand lever pivoted on the chassis frame, so that vertical movements of the hand lever rotate the axle, the hand lever being retained in the desired position by passing a pin through the lever and a fixed quadrant suitably perforated.
Patent GB-1518517-A (GB)
Title: Electrostatic spray gun for powder
IPC: B05B5/16
Filed: 1975-09-16
Abstract: 1518517 Electrostatic spraying apparatus CHAMPION SPUG PLUG CO 16 Sept 1975 [16 Sept 1974] 37982/75 Heading B2F An electrostatic spray gun for the deposition of powdered coating material comprises a charging electrode 60, Fig. 1, axially disposed within a powder discharge passage 25, a conduit 24 for supplying a stream of powder dispersed in air to the discharge passage, a plurality of passages 50 in the spray head for directing a stream of air to vary the shape of the spray pattern, and means for simultaneously supplying air to a passage 56 surrounding said electrode, thereby removing powder particles from the electrode. The air for the passages 50 is supplied through a tube 28, Fig. 2 and passes through passages 47, 48 into a cavity 49 in the gun barrel and thence through conduits 51, 52 to the passages 50 which are tangentially inclined to the powder discharge channel so that the air imparts a whirling movement to the powder stream. The electrode is located at the centre of a diffuser assembly 26 held in position by a series of radial spokes 53, said electrode being connected to a high voltage charging cable 29. The air for cleaning the electrode is supplied through an inlet 30, Fig. 2, within tube 28, whence it passes through a passage 32, a tube 32b and passages 54 and 55 to the passage 56. Air also passes from passage 32 via an annular passage 33 into a passage 32a leading to a trigger-operated regulator valve 34 in the handle portion of the gun. The regulator valve comprises a ball valve 35 actuated by a spring-loaded piston 37 such that when the valve is opened air flows via a radial passage 44, an annular passage 45 and a further radial passage 46 to an air outlet tube 31 located within tube 28. The pressure of the air in the outlet tube 31 is controlled by the position of the trigger 38, and this air is used to actuate a control circuit depicted in Fig. 5 (not shown) whereby the rates of flow of powder and air supplied through conduit 24 and of air supplied through passages 50, and the D.C. power supply can be controlled by means of valves to give the desired spraying conditions. As soon as the system is turned on, air passes from the inlet 30 to the passage 56 so that the electrode has a constant flow of air around and along it. The powder is supplied to the circuit from a tank (65), Fig. 5, (not shown), in which the powder is maintained in a fluidised condition by air passing into the tank beneath a porous separator. The control circuit includes two pilot valves (73, 74) which respond to different pressures of air from the outlet tube 31, each of said pilot valves actuating separate regulators for controlling the pressure of air supplied to the passages 50 and the feed rate of the powder so that the operator can select either one of two possible spraying conditions by means of the trigger.
Patent GB-637100-A (GB)
Title: Improvements in or relating to progressive electric regulating switches
IPC: H01H9/00
Filed: 1946-12-31
Abstract: 637,100. Regulating-switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 31, 1946, No. 38143. Convention date, May 21, 1941. [Class 38 (v)] [Also in Group XXIV] In a regulating-switch suitable for high voltages, the moving contact is raised vertically from a fixed contact, is moved along, and then lowered vertically on to the next fixed contact. A traveller 1 has two arms 4, 5 supporting a pivoted insulated arm 6 which at one side has a curved contact-member 9 maintained in contact with a bus-bar guide 10. At the other end of arm 6 is a contact 7 which co-operates with fixed contacts formed by rounded L-shaped rods mounted alternately as shown so as to obtain the longest possible leakage path..The casing of the traveller is formed by two members 20, 21 free to slide on a threaded shaft 2, which is mounted eccentrically, so that one complete rotation of the shaft will raise and lower the traveller. In the casing of the traveller is a nut 23 which has a longitudinal groove 24 engaged by a catch 25 screwed into the casing 21. This nut also has an inclined groove 26 consisting of two opposite half-spirals having the same pitch as the thread on shaft 2. A sleeve 28 has a screw 29 engaging in a longitudinal slot 30 in the shaft 2 and a screw 27 engaging in the groove 26 in the nut 23. Rotation of the shaft 2 imparts a continuous longitudinal movement to the nut 23 which is prevented from turning by the screw 25, and a continuous rotary motion to the sleeve 28. During one half-turn of the shaft, the screw 27 will be forced to move back along the reverse half-spiral of slot 26, so that the nut 23 merely moves along into the sleeve 28, no longitudinal movement being imparted to the sleeve and traveller. Hence during this half-turn, the eccentric mounting of the shaft effects both the vertical lowering and vertical raising of the moving contact 7 onto and away from a fixed fixed contact 14. During the next half-turn of the shaft, the screw 27 is forced to move in the progressive part of the slot 26 and the sleeve 28 moves longitudinally along the shaft at a speed twice that of the nut. Therefore this second half-turn of the shaft effects the movement of the moving contact from a position above one fixed contact to a position above the next,'the movement being in the form of an arc, as shown in Fig. 6, due to the effect of the eccentric shaft during this latter half-turn.
Patent GB-883925-A (GB)
Title: Adjustable-speed induction motor
IPC: H02K17/30
Filed: 1959-11-11
Abstract: 883,925. Induction motors. ZAVODY V. I. LENINA PLZEN, NARODNI PODNIK. Nov. 11, 1959 [Nov. 12, 1958], No. 38204/59. Class 35. A variable-speed induction motor comprises a series of stators 1, 2, 3 each energized by one phase of a three-phase supply, and so arranged that stators 1 and 3 can be turned in opposite directions with respect to the middle stator 2 to produce rotation. The rotors 4 are all linked by a common squirrel cage or other shorted winding. When the stators are in line the flux travels axially only but opposite rotation of the outer ones produces a rotational component.
Patent GB-1106298-A (GB)
Title: Process for the manufacture of aromatic amines
Inventor: COOKE EDWARD VINCENT
IPC: B01J23/90
Filed: 1964-09-18
Abstract: Aromatic amines of the benzene series are made by liquid phase hydrogenation of the nitro-compounds in presence of a metal catalyst which has been modified by contact with an alkanolamine (up to C9) other than triethanolamine. The preparation of aniline is exemplified.