baber/WOPTO huggingface dataset:
Patent GB-468132-A (GB)
Title: Improvements in distributing valves and valve gear for rock drills
IPC: B25D9/20
Filed: 1937-03-25
Abstract: 468,132. Rock - drill valves and valve gear. INGERSOLL-RAND CO. March 25, 1937, No. 8847. Convention date, April 2, 1936. [Class 122 (ii)] In a fluid-actuated rock drill, the distribution is effected by a sleeve, slide valve which reciprocates on an internal, guiding-member. The ends of the valve control the admission ; fluid-pressure acting on the ends of the valve and on a central, external flange effects reversal; an auxiliary exhaust from both cylinder ends is effected by passages controlled by an inner recess in the valve. The drill has a differential piston 23 controlling a main exhaust 24. The valve-chest 28 comprises plates 29, 30, 31, 32 which include a chamber 33 bounded internally by an extension 34 on the plate 29 and housing a sleeve valve 35. Fluid pressure is supplied by a passage 38 through passages 39, 40 to the valve chamber and passes by passages 36, 37 to the cylinder ends when the valve reciprocates. The valve has an exterior flange 43 with actuating-areas 44, 45 alternately subject to cylinder pressure through kicker ports 46, 47 arranged on either side of the main exhaust. The valveflange chamber has vents open constantly to exhaust. The front and rear ends of the valve constitute holding-areas and seating-portions, and limit the valve travel. The extension 34 has auxiliary exhaust passages 54, 55 connecting the passages 36, 37 to an auxiliary exhaust 56 controlled by a groove 57 in the valve.
Patent GB-407828-A (GB)
Title: Improvements in electric starters for internal combustion engines
Filed: 1933-03-23
Abstract: 407,828. Motors. ETABLISSEMENTS LABINAL, 28, Rue Arago, St.-Ouen, Seine, France. March 23, 1933, No. 8853. Convention date, Dec. 12, 1932. [Class 35.] Rotary machines ; driving-arrangements.- In an electric starter for an internal-combustion engine having a pinion longitudinally displaceable for engagement with a gear wheel on the engine, the circuit of the armature and series field winding of the motor is controlled by an automatic switch which is shunted by a resistance and is actuated by a device participating in the movement of the pinion in such a way that the motor rotates, slowly at first and is supplied with full load current only after the starting pinion has moved a sufficient distance to mesh with the engine gear. The armature shaft 2 is hollow to receive a coaxial shaft 5 carrying a pinion 7. The shaft 5 has an enlargement 8 with an internal conical surface engaging a conical surface on a nut 9 co-operating with a screw 10 keyed to the shaft 2. The co-operating surfaces on the members 9, 10 constitute a clutch which will yield to abnormal stresses. The parts are kept in the position shown by a spring 11 bearing against a cupshaped member 12 which is held against rotation by a key 13. Within the motor frame are clamped two solenoids 17 which serve to attract a rhombus-shaped plate 20 to brake the nut 9, and a solenoid 18 for closing the contacts 24, 24<a> of an automatic switch. The circuitclosing member of this switch consists of a bridge 23 pivoted to the core 22 of the solenoid and co-operating at one end with the contact piece 24 and at the other end with a pair of blocks 42 of high resistance on the contact 24<a>. In operation, starting switch 29 is closed and connects the shunt field core 27 to the battery 28 and also the armature 1 and series field coil 26 in series with the high resistance solenoids 17, so that the motor runs slowly. Energization of the solenoids causes the plate 20 to be pressed against the nut 9 which is thus prevented from rotating and is moved to the left together with the shaft 5 and pinion 7. If the pinion teeth are not in proper alignment with the engine gear, the nut 9 will rotate slightly to permit engagement. After engagement, the engine gear still prevents rotation of the pinion which continues to move to the left. Before the limit of the stroke is reached, the cup-shaped member 12 engages a hook at the end of a rod 14 connected to the core of solenoid 18 and the switch contacts are closed. The motor circuit is thus completed independently of the solenoids 17 so that full current flows and the solenoid 18 is fully energized to maintain the automatic switch closed. When the engine starts, the pinion 7 overruns the armature shaft and back. The pinion and engine gear cannot re-engage unless the starting switch is first opened and then closed. The nut 9 may be braked electrically and gearing may be arranged between the shafts 2 and 5.
Patent GB-339220-A (GB)
Title: Improvements in or relating to the preparation of cyanates
IPC: C01C3/20
Filed: 1930-03-19
Abstract: 339,220. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. April 10, 1929, [Convention date]. Alkali and alkaline-earth metal cyanates; ammonia.-Alkali and alkaline-earth metal cyanates are obtained by heating urea in the absence of solvents, say to 120-150‹ C., with basic alkali metal compounds such as soda or potash or alkali hydrides (but excluding alkali hydroxides) or with alkaline-earth metal compounds, for instance with calcium oxide or hydroxide, calcium carbide, hydride, amide, or carbonate. Ammonia evolved is recovered, and when calcium carbide is used, acetylene also is obtained. In carrying out the process less than the equivalent quantity of urea may be used at first, and then a further quantity be added to provide a slight excess. Alkalineearth cyanates obtained may be treated in aqueous solution or suspension with alkali compounds such as common salt to produce alkali cyanates.
Patent GB-1180274-A (GB)
Title: Large Composite Container for Liquefied Methane, provided with a Shell of Reinforced Ice, and method of making same
Inventor: IOZZA EMANUELE
IPC: F17C3/02
Filed: 1967-02-24
Abstract: 1,180,274. Floating container for liquefied gases. E. IOZZA. 24 Feb., 1967 [24 Feb., 1966], No. 8890/67. Heading B7A. [Also in Division F4] A floatable container for liquefied gas, (e.g. methane) comprises a sheet metal tank T surrounded with a layer of heat insulation 5 enclosed in a easing 8 of ice (from fresh or salt water) reinforced by a grid of tubes Ml to M10, LI, Cl through which flows evaporated gas from a dome D on the tank which projects above the casing of ice. The evaporated gas escapes from the grid of tubes either by a flue, or into fuel burners. A method of construction, Figs. 3-5 (not shown), and a flow pattern for the evaporated gas, Fig. 2 (not shown) are also described. The container may be constructed in a dry dock.
Patent GB-125529-A (GB)
Title: Improvements relating to the Doors or Closures of Rotary Cylinders used in Roasting, Blending or similar Machines.
Inventor: POOLEY HENRY THOMAS
IPC: A23N12/10
Filed: 1918-05-29
Abstract: 125,529. Pooley, H. T., and Banks, G., (trading as Savage & Co.). May 29, 1918. Rotary batch-mixers.-In means for opening and closing the door or closure of a rotary cylinder, such as is used for tea-blending or similar purposes, the cylinder b is loosely mounted on a driving-shaft a, at each end of which are fixed levers adapted to move the doors e circumferentially over an opening in the cylinder, cams y being provided to draw the door firmly on to its seating when the shaft is driving the cylinder. Each lever is made in two parts, the part c<1> carrying the door being slidably mounted on the parts c fixed to the driving-shaft. The ends of the levers remote from the doors are preferably provided with a counterweight. Each cam g is pivoted at one end to the cylinder and is adjustable radially with respect to the cylinder at its other end by means of screws h<1> carried in a bracket h. The sliding ends c' of the levers carry rollers i which bear upon the inner and outer faces of the cams g. Adjustable stops j are provided on the cylinder to limit the motion of the levers c with respect to the cylinder. The Provisional Specification describes also a modified construction, in which cam slots formed in the ends of the levers c engage projections on the doors e.
Patent GB-550660-A (GB)
Title: Improvements in or relating to the blind landing of aircraft
IPC: G01S19/51
Filed: 1941-07-15
Abstract: 550,660. Wireless blind-landing systems for aircraft. SPERRY GYROSCOPE CO., Inc. July 15, 1941, No. 8948. Convention date, Aug. 28, 1940. [Class 40 (v)] Blind landing apparatus for aircraft employing overlapping highfrequency electromagnetic beams which are modulated at different frequencies comprises a receiver carried by the aircraft which comprises a separate amplifier for each frequency, the ratio of the amplifications produced by them,being controlled by the strength of the received transmissions, thereby providing a glide path the lower portion of which curves upwardly from the straight path which would be followed if uniform amplification of the signals from each beam were maintained. In the superheterodyne receiver shown, the output from the second detector valve 12 after amplification by a valve 13 is separated by filters F1, F2 into two component frequencies, which are separately: amplified by valves 16, 17 respectively and rectified by copper oxide rectifiers 25, 26, the resulting currents being supplied in opposition to a centre-zero microammeter 27. A diode valve 5, to which amplified signals are passed by a valve 6, supplies A.V.C. voltages to a line 10 by which, in addition to the usual control of the intermediate frequency amplification, the grid-bias of the valve 16 is also controlled, 'whilst that of the valve 17 remains constant, as its grid return lead is connected to the earth line 23. As, therefore, the transmitters are approached and the signals increase in strength the amplification of the modulation frequency of the upper beam is diminished as compared with that of the lower beam necessitating an upward deviation from the straight line glide path in order to maintain a balance of the rectified and unequally amplified signals from both beams.
Patent GB-454223-A (GB)
Title: Improvements in apparatus for detecting and correcting misalignment in connecting rods of internal combustion engines and the like
IPC: B21D3/16
Filed: 1935-03-22
Abstract: 454,223. Correcting alignment of connecting-rods. ELLIOTT, T., 4, Norman Grove, Longsight, Manchester. March 22, 1935, No. 8963. [Class 83 (iv)] [See also Group XIX] A device E, Fig. 6, for removing misalignment in a connecting-rod is positioned on lugs a3, Fig. 4, on the member A and comprises a vice having a pair of stationary jaws e and a pair of jaws e<1> carried on a worm wheel gearing with a worm e<2> rotated by a handle e<3> to remove twist, and having a screw e<4> to remove bending. Spring U-clips e<5>, Fig. 10, are provided for insertion in the jaws e, e<1> when narrow rods are to be corrected. A correcting device operated hydraulically can be used and comprises a hand operated main screw F, Fig. 8, containing two cylinders f<5> f of different diameters and a fine threaded screw f<2> operating on a plunger f<3> in the cylinder f to compress oil between the plunger and a cup washer f<4> in the cylinder f which transmits movement to a plunger f operating upon the web of the connecting-rod. A return spring f<7>, adjustable stud support f<8> and a making up piece f<9>, Fig. 11, are provided. The correcting device E and apparatus for detecting misalignment are housed within the member A, Fig. 4, when not in use.
Patent GB-207465-A (GB)
Title: Fire rescue bag
IPC: A62B1/02
Filed: 1923-03-29
Abstract: 207,465. Hodgson, H. E. March 29, 1923. Sacks.-A fire rescue bag for lowering persons from buildings, or for carrying infants on the back of a fireman, comprises a flat bag 1 of flexible material enclosed at the sides and bottom by a rope network 3 composed of a number of vertical and horizontal cords knotted &c., together and attached to the bag by eyes &c. thereon. The lower parts of the sides of the bag overlap to produce a double bottom, and are stitched together. The fabric of the bag may be fire-proofed with asbestos. The vertical strands of the network are brought together in two groups 11, 11<a> and knotted together as shown, the lowering-cable 21 being looped through the knotted structure. The top edges of the bag may be tied together. When the bag is to be used on the back of a fireman, it is provided with shoulder loops and body straps or cords.
Patent GB-477940-A (GB)
Title: Improvements in or relating to reclaiming of rubber from waste rubber products
IPC: C08J11/14
Filed: 1937-03-30
Abstract: Rubber is reclaimed from waste rubber products by heating in a water environment within a temperature range of about 250-350 DEG  C. and under pressure sufficient to maintain the water as such.  The hardness of the resulting product depends on the temperature used. With the high temperature 350 DEG  C. the rubber is substantially depolymerized down to the diterpene stage and the product is soft. At the low temperature, the rubber is still in the polymerized state and is comparatively hard.  At 300 DEG  C. the product is of intermediate hardness.
Patent GB-734714-A (GB)
Title: Amide-nitrogen-containing polymers
IPC: C08F8/30
Filed: 1953-04-02
Abstract: The ammonium salt of an isobutylenemaleamic acid copolymer is prepared by treating particles of an isobutylene-maleic anhydride heteropolymer with ammonia at ordinary or elevated temperature, if desired in the presence of moisture.  The heat of reaction is preferably removed by cooling.  The product is a half amide-half ammonium salt of formula: <FORM:0734714/IV (a)/1> where X is the isobutylene residue.  The product, which is a polyelectrolyte, may be used as a size, for stabilizing aqueous emulsions and dispersions, and particularly for stabilizing soil aggregates.  The ammonium salt may be converted into the free acid by treatment with strong aqueous hydrochloric acid. Specifications 730,463, 730,464 and 734,504 and U.S.A. Specifications 2,055,456 and 2,378,629 are referred to.
Patent GB-146621-A (GB)
Title: Improvements in presses for use in the manufacture of rubber or like articles
IPC: B29D30/06
Filed: 1919-04-11
Abstract: 146,621. Roberts & Sons, A., Lancaster, F. J., and Charles, A. E. April 11, 1919. Vulcanizing-presses.-A. press for moulding india-rubber &c. comprises an upper fixed plate 20 provided with a depending annular jacket 21 and a movable lower platen 6 carried by an hydraulic ram 3, both platens and jacket being hollow and heated. As shown, the platen 6 is provided with a heating cavity 7 to which steam is supplied through a pipe 8 passing through the ram 3 and surrounded by an air space 13 which may be filled with heat-insulating material. The moulds are placed upon the platen 6 which is raised by the ram 3 to press the moulds against the platen 20, the jacket 21 surrounding both the moulds and the lower platen. An inspection opening may be provided in the jacket. A number of presses may be arranged in a framework furnished with common water and steam pipes and fitted with a table heated by coils, through which waste steam from the presses is circulated.
Patent GB-593439-A (GB)
Title: Fire or heat detecting systems
IPC: H01H37/36
Filed: 1945-04-13
Abstract: 593,439. Fire or heat detecting and protective systems. GLENDINNING. W. G., and MAcLENNAN, A. M. April 13, 1945, No. 9289. [Classes 47 (i) and 47 (ii)] In a system for detecting fire or heat and initiating the operation of an alarm, extinguisher or other protective device, of the kind in which a pressure-operated switch is actuated when fusion of a fusible seal allows a pressure change to occur in a hollow detector element, an indicator is associated with a two-way switch to give warning of a pressure change, e.g. due to leakage in the detector element, before the change is sufficient to close the extinguisher circuit. As shown, the detector element consists of a tube 13, Fig. 4, having apertures sealed by solder. The tube may have a single aperture only, or may be made of fusible material. It is connected to one passage of a manifold 11, of which a second passage is connected to a non-return valve 14 by which air may be compressed in the tube, and a third passage to a bellows 16, Fig. 2, which controls a lever 17 connected to a switch arm 20. The lever 17 also operates an indicator arm, not shown, While pressure is maintained in the tube 13, the arm 20 engages a contact 21. A green signal light 34 is then lighted and the indicator arm is visible at the green end of a chart. If an outlet of the tube is melted, the pressure falls rapidly and the arm 20 moves into contact with a contact 22. The light 34 is then extinguished, the indicator arm moves across the chart to a red portion, and the extinguisher or other protective circuit is closed. At the same time, a red signal light 34 is lighted. If there is a slow fall of pressure in the tube, due to a, leak, the indicator arm moves slowly across an amber portion of the chart, giving a visual warning before the extinguisher circuit is closed at 22, so that a manual switch 25 controlling the extinguisher circuit may be opened, if desired, before the extinguisher is operated. A manual switch 24 controls the green indicator lamp circuit.
Patent GB-1333368-A (GB)
Title: Suspension-polymerization of vinyl chloride
IPC: C08F14/06
Filed: 1972-02-29
Abstract: 1333368 Suspension polymerization process SHINETSU CHEMICAL CO 29 Feb 1972 [11 Sept 1971] 9327/72 Heading C3P In the aqueous suspension polymerization of vinyl chloride there is used as protective colloid a mixture of two cellulose ethers, one having a viscosity of not greater than 100 cps. the other of at least 400 cps. in 2% aqueous solutions at 20‹ C. The examples employ various ethers chosen from methylcellulose, hydroxypropyl methylcellulose, hydroxyethyl methylcellulose, and hydroxypropyl cellulose. In some examples vinyl acetate, propylene or stearyl vinyl ether are included as comonomers and trichloroethylene may be present.
Patent GB-440395-A (GB)
Title: Improvements in or relating to the casting of compound chilled rollers
IPC: B22D19/16
Filed: 1934-03-24
Abstract: 440,395. Casting composite rolls. GONTERMANN-PEIPERS AKT.-GES. FUR WALZENGUSS U. HUTTENBETRIEB, Siegen, Westphalia, Germany. March 24, 1934, No. 9337. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 26, 1934]. [Class 83 (i)] A chilled roll is formed by pouring hard metal through a bottom runner r until the chill s is filled, then pouring soft metal until the mould t for the lower journal is filled, the hard metal being forced into the mould v for the upper journal, and finally, when a shell has solidified, drawing off the still molten metal at E while soft metal is poured at w to replace it and form the core. The draw off may be at F, but care must be taken that the surface of the metal in the mould does not fall to the top of the chill s.
Patent GB-309128-A (GB)
Title: Measuring arrangements for measurement of ratio of transformation and phase angles of voltage and current transformers
IPC: G01R1/28
Filed: 1929-03-25
Abstract: 309,128. Slavik, J. April 5, 1928, [Convention date]. Inductances and phase-differences, measuring; stopping devices for motor meters.-For measuring the transformation ratio and phase angle of transformers, two meters I, II, Fig. 1, are employed, each having two driving systems. In series with the pressure coils of the driving systems S1, S2 are condensers C and resistances R so adjusted that the currents in these pressure coils are in quadrature with the currents in the pressure coils of the systems C1 C2. The current coils of the four driving systems are supplied from an auxiliary transformer T, the primary winding being connected between one phase x of a three-phase system and a variable tapping on a resistance W connecting the other two phases y, z, in order to permit adjustment of the phase of the current supplied to the current coils. In order to measure the transformation ratio of a potential transformer Me, the secondary winding is connected to the pressure winding C1, the remainder pressure windings S1, C2, S2 being connected in parallel to the secondary winding of a standard transformer Ne. The phase of the current in the current coils is adjusted until the meter I is at rest when the transformer Me is switched off. The transformer Me is then switched in and readings are taken of the number of rotations of both meters in the same time; their ratio is the same as that of the transformation ratios of the transformers Me, Ne. To measure the phase angle, the secondary winding of the transformer Me is connected to the pressure winding S1, the remaining pressure windings, C1, C2, S2 being connected in parallel to the secondary winding of the standard transformer Ne. The phase angle can be calculated from readings of the rotations of the meters I, II. Current transformers may be similarly tested, the pressure circuits of the meters being connected in parallel to a voltage of adjustable phase, one current coil being connected to the secondary windings of the transformer to be tested, and the remaining current coils being connected in series with the secondary winding of the standard transformer. Fig. 3 shows a stopping device for the meters I, II, by means of which they can be simultaneously released to facilitate counting the rotations. Stops R1, R2 are carried by a rod H, by rotation of which they are simultaneously removed from the path of projections A1, A2 on the discs. The whole of the apparatus is preferably mounted in one case.
Patent GB-717960-A (GB)
Title: Improvements in glazing systems
IPC: B60J10/00
Filed: 1951-02-23
Abstract: 717,960. Glaring strips. DUTFIELD, A. E., and RAWLINGS MANUFACTURING CO. Ltd. Feb. 21, 1952 [Feb. 23, 1951], No. 9502/54. Divided out of 717,921. Class 20 (3) A glazing strip of resiliently flexible material such as rubber havirig a longitudinally extending upright channel 3 along its upper face for receiving a glass or like panel and with a longitudinally extending inverted channel along its under surface for engaging the edge of a body panel and also having a groove or pocket 4 extending along a flank of the body part 2 of the strip to provide a space to enable the adjacent wall 5 of the channel 3 to be deflected downwards when the pane is placed in position, has a buttressing strip 7 integral with the body strip 2 by being united to a tip of one of the edge portions of the groove 4. After placing the pane in groove 3 the strip 7 is tucked into the groove 4 the outer face of the strip 7 having a longitudinally extending ledge 9 serving as a seat for the tip 10 of the lip 8 of groove 4, the tip 10 being shaped to fit on to the ledge 9. In a modification the lip 8 extends upwardly and the buttressing strip extends downwardly. Specifications 635,443, 674,803 and 691,576 are referred to. Reference has been directed by the Comptroller to Specification 529,527.
Patent GB-954758-A (GB)
Title: Recording devices
Inventor: ZENNER WALTER JOHN
IPC: G08C21/00
Filed: 1963-03-11
Abstract: 954,758. Electric motors. P. G. S. MERO. March 11, 1963, No. 9598/63. Heading H2A. A D.C. motor 10 for driving a pen in a graphic communication recording device comprises a cylindrical permanent magnet shell 11 magnetized in two semi-circular paths 66, 67 to produce fluxes in the same direction parallel to a given shell diameter 14 and in whose central cavity 16 is fitted a cylindrical insert 15 comprising two soft magnetic pole-piece segments 17, 18 mutually separated by two non-magnetic segments 20, 21, and a soft magnetic rotor 22 concentrically within the central aperture of the insert 15 and mounting a winding 26 parallel with a selected diameter; the construction provides that the magnet field maintains the rotor orientated with the two diameters aligned when the winding has zero excitation and deflects the rotor angularly when the winding has an unbalanced excitation. As shown, the winding is divided into two sections 26A, 26B energized from a source 63 via respective potentiometers 64, 65, movement of whose ganged taps unbalances the excitation to cause the rotor to move, maximum movement being limited by an end bell arcuate track 37 engaged by a rotor stop-pin 36.