baber/WOPTO huggingface dataset:
Patent GB-414862-A (GB)
Title: Improvements in the production of chlorinated rubber
IPC: C08C19/14
Filed: 1933-05-13
Abstract: Chlorinated rubber is produced by the admixture of solutions of rubber and of chlorine, for example in carbon tetrachloride, in contact with water, and the resulting emulsion of water in chlorinated rubber may be inverted to form an aqueous dispersion of chlorinated rubber by dilution of the emulsion with water.  The rubber may be natural or synthetic, compounded or uncompounded, and purified or in the natural condition.  The term "rubber" includes balata and guttapercha.  Separation of the chlorinated rubber as an aqueous dispersion can be effected by adding to the washed emulsion of chlorinated rubber an alkali e.g. ammonia, and a protective colloid e.g. casein, agitating in a colloid mill and removing the solvent by evaporation.ALSO:A method of producing chlorinated rubber is characterized by the admixture of solutions of rubber and of chlorine in contact with water.  The rubber may be natural or synthetic, compounded or uncompounded, and purified or in the natural condition.  The term "rubber" includes balata and guttapercha.  The solvent for the rubber and for the chlorine may be carbon tetrachloride. Either or both of the solutions may be cooled before and after being mixed; also the water may be introduced cold-e.g. as crushed ice.  The water may contain an oxidizing agent, such as hydrogen peroxide or a permanganate or a hypochlorite, for the purpose of recovering chlorine from hydrogen chloride formed by the action of chlorine on the rubber.  It is stated that any hydrogen chloride ultimately formed is substantially retained by solution in the water.  Into the resulting emulsion of water in chlorinated rubber may be introduced fillers, pigments, &c.  The emulsion may also be washed with fresh water, and inversion thereof-i.e. the production of an aqueous dispersion of chlorinated rubber-may be effected by dilution of the emulsion with water.  The rubber solvent may be recovered by decantation or distillation with steam or both, the residual chlorinated rubber being in the form of a porous mass, friable when cold; or separation of the chlorinated rubber as a fine powder can be effected by stirring the emulsion vigorously with ethyl alcohol in the cold or, as an aqueous dispersion, by adding to the washed emulsion of chlorinated rubber an alkali-e.g. ammonia-and a protective colloid-e.g. casein-, agitating in a colloid mill and removing the solvent-say, carbon tetrachloride-by evaporation.  Five examples are given.
Patent GB-461693-A (GB)
Title: Improvements in or relating to the cylinder heads of internal combustion engines
IPC: F01L1/38
Filed: 1935-05-13
Abstract: 461,693. Cylinders. STEVENS, A. H. (Economy Engineering Corporation) May 13, 1935, No. 14021. [Class 7 (ii)] The inner surface of a combustion-chamber wall is kept at substantially constant temperature by thickening those portions of the wall, which are normally cooler, and varying the thickness to compensate for the irregularity of the temperature normally produced. This may be effected in the casting of the cylinder head, but in Fig. 1 a pad 13 of lead is subsequently cast onto the core part of the wall ; the pad may extend over the inlet valve. In Fig. 7 a tapering lead pad 13a is cast over the inlet valve 17 ; preferably, it also closes the cooling-water passage 3y adjacent the sparking-plug 8a. In Fig. 8 a pad 30 of brazing metal, brazed inside the combustion chamber round the inlet valve ; this also reduces the clearance and increases the compression ratio which in the alternative arrangement is increased by planing down the face joint of the cylinder head. Calculations are given for designing the wall or shaping a pad for a specific engine ; the cylinder head may be of cast iron or aluminium alloy, and the pads may be of metals other than lead, or of a non- metallic substance, e.g. fire enamel; or the substance known by the Registered Trade Mark " Bakelite." The sparking-plug 8 is arranged in a hot pocket preferably separated from the combustion chamber by a restriction 15, as described in. Specification 461,694. In Fig. 7, two sparking-plugs 8a, 8b are provided, a pocket being arranged round that plug adjacent the exhaust valve. British Specification 422,198 and U.S.A. Specification 1,928,299 are referred to.
Patent GB-277059-A (GB)
Title: Improvements in or relating to brake gear for motor vehicles
IPC: B60T11/06
Filed: 1926-06-03
Abstract: 277,059. Smith, S., and A.C. Cars, Ltd. June 3, 1926. Force-transmitting mechanism.-Operating mechanism for the brakes on the four wheels of a vehicle whereby an equalized or compensated effort is applied to all four brakes through a single shaft, comprises a tubular shaft 1 adapted to be rocked by an arm 2 connected to the brake pedal or lever and provided with mountings 5 at each end for a pair of pulleys 6. A pair of cables 10 each connected to one pair of brakes, which may be the front and rear brakes on one side of the vehicle or an end or diagonal pair each pass around one pair of pulleys 6 and a pulley 7 slidable longitudinally within the shaft 1. The two pulleys 7 are rigidly connected by members 11, 13 freely slidable with the shaft 1. The effort applied to each pair of brakes is thus compensated by the cable 10 and compensation between the two pairs is effected by the freely movable members 11, 13. To avoid sharp bends in the cables where these enter the shaft 1, flared bushes 20 are provided. Springs 18 are disposed between the bushes and fixed collars 19 to facilitate assembly of the gear. Compensating for wear.-To permit of simultaneous adjustment of the brakes, the members 11 which carry the pulleys 7 are provided with oppositely threaded ends 12 engaged by a sleeve 13 slidably keyed to a worm toothed sleeve 15 meshing with a worm which can be turned by a handle 17 accessible from the driver's seat. The distance between the pulleys 7 can thus be adjusted.
Patent GB-1415604-A (GB)
Title: Cereal milling
IPC: B02C4/38
Filed: 1973-03-23
Abstract: 1415604 Roller mills HENRY SIMON Ltd 7 March 1974 [23 March 1973] 14113/73 Heading B2A [Also in Division G3] In a cereal milling process wherein grain is fed from a silo 10 through a succession of alternate roller mills 11 and sieving stations 12, the proportion of throughs to overtails at each station 12 is determined and used by a computer C to control the roll spacing of the respective preceding mill 11. As shown the computer receives output proportion signals from the sieves 12 over lines b, and signals of the actual spacings of rolls 11a over lines a. At the start of an operation, computer signals are passed by lines c to set the rolls to the spacings last used for that feedstock. As milling proceeds, the spacings are adjusted to keep the output proportions from each mill equal to the best previous pattern. The computer may be overridden manually and if performance is thereby improved, the new best performance pattern is stored in the computer memory.
Patent GB-442842-A (GB)
Title: Dentist's forceps for removing the crown-ring of tooth
IPC: A61C3/16
Filed: 1934-05-10
Abstract: 442,842. Dental forceps. FARNER, E., 20, Rue du Conseil General, Geneva, Switzerland. May 10, 1934, No. 14117. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 12, 1934]. [Class 81 (ii)] Dental forceps for mounting or removing the crown rings of teeth are provided with two pairs of jaws, one pair 5 and 5a being disposed at the end of the levers in the plane of the forceps and the second pair 6 and 6a being disposed at lateral edge of the levers in a plane at right angles to the plane of the forceps. The inside of the jaws should be rough.
Patent GB-202411-A (GB)
Title: Improvements in machinery belt and like fasteners
IPC: F16G3/00
Filed: 1922-05-19
Abstract: 202,411. Shaw, T. May 19, 1922. Slides, belt and like.-A fastening for machine belts &c., comprises a flat plate of slightly less width than the belt, formed with three open slots C extending inwardly from each edge and with one or more sets of three closed slots or openings B between and in parallelism with the open slots C, the central row of slots B, C, running transversely, being wider than the slots on either side thereof. The belt ends, after being suitably slotted as at E, are placed together and passed through the central row of slots, each end then being bent back and passed to the underside of the fastener through the outer rows of slots, as shown in Fig. 3, the device gripping frictionally when the belt is tautened. Adjustment may be effected on lengthening the slots E in the belt ends.
Patent GB-686126-A (GB)
Title: Improvements in or relating to the pressure welding of overlapping edges of sheet metal
IPC: B23K20/02
Filed: 1950-06-06
Abstract: 686,126. Making boxes. GENERAL ELECTRIC CO., Ltd., FOXON, H. J., and SOWTER, A. B. May 29, 1951 [June 6, 1950], No. 14138/50. Classes 83 (ii) and 83 (iv). Jointing; welding.-A method of making a closed three-sided corner member from sheet metal comprises cutting out the developed corner consisting of two sides and a bottom, each side being provided with excess material, which is bent at an angle to the remainder of the sides so that when the sides are bent up to form the corner member the excess material of the sides overlaps, the bottom corner being slit inwardly to allow such bending and the overlapping parts being welded down the sides and over the edge to the bottom by pressure welding. In an embodiment of the invention the development of a box is stamped out from sheet aluminium and consists of a bottom B and four sides A which have at each end extensions 2. Each corner of the bottom B has a diagonal slit 3 to facilitate bending of the sides A. In making the box the edges of the sides are bent along the lines 4<SP>1</SP> at an angle of 45 degrees to the remainder of the sides and then the sides are bent on the line I at an angle of 90 degrees to the bottom B. The folded edges, which overlap about # inch, are then cold welded together by means of a triangular section anvil 4, Fig. 4, a press tool 5 and clamps 6. The tool 5 comprises a central member 7 having a flat surfaced projecting welding tongue 10 and two end members 8 and 9. The height of the tongue 10 increases as it approaches the end member 8 for welding around the corner of the box. The anvil 4 has a grooved flattened apex, the groove 14 of which lies directly under the tongue 10 of the tool 5. One end of the flattened apex is radiused to form the inside bottom corner of the box. The central member 7 of the tool has recesses 15 along each side of the tongue 10 and during the welding operation metal is forced into the recesses 15 as well as the groove 14 and so improves the outside appearance of the welded corner. The welded corners are water-tight and the invention may be applied to making boxes whose sides are not at right angles to the bottom.
Patent GB-865949-A (GB)
Title: Improvements in or relating to compressed gas electric circuit interrupters
IPC: H01H33/825
Filed: 1959-04-27
Abstract: 865,949. Gas-blast switches. WESTINGHOUSE ELECTRIC CORPORATION. April 27, 1959 [April 29, 1958], No. 14222/59. Class 38 (5). A gas-blast circuit interrupter of the dead-tank type, Fig. 2, comprises terminal bushings 2, 3, supported by cylindrical tank components 4, 5, each enclosing an arcextinguishing assemblage 15 and being mounted on housings 6, 7, respectively, bridged by a cylindrical tank 8 carrying an operating housing 9, the whole structure being gas-tight. The assemblages 15 are interconnected by a conducting blade 16 supporting one end of an insulating operating shaft 10, rotation of which is transmitted to two pairs of vertically - moving, insulating, operating rods 32 by means of a linkage system comprising crank-arms 19, links 21, bell-cranks 22, links 29, and yokes 31. Each assemblage 15 comprises two series-connected units 38, that shown in Figs. 3 and 4 comprising fixed and movable contacts 42, 43, enclosed by an orifice 47 secured to a high-pressure gas reservoir 39 and communicating therewith through a blast valve 40. The latter is actuated by downward contact-opening movement of the rods 32 during which a pilot valve 53, Fig. 5, is opened by the engagement of a sleeve 49 with a lever 57 so releasing gas from the space 51 to allow gas from the space 60 to open the valve 40 and blast through the orifice 47 to extinguish the arc between the contact 43 and the arcing horn 42a. The reservoir 39 is supplied through a channel 63 from a common pipe 62 connected to an external supply of gas through a pipe 66. The gas exhausted through the valve 53 and the orifice 47 is trapped in the region 65, from which it may be withdrawn, for recycling, to the supply system after a number of interrupter operations. The gas used may be selected from sulphur hexafluoride, selenium hexafluoride, a mixture of these two, or a mixture of either with air, carbon dioxide, nitrogen, argon, or helium. In a modification, Fig. 7 (not shown), a number of series-connected units 38 are mounted in a horizontal cylindrical tank supported on a framework. Specification 710,925 is referred to.
Patent GB-160693-A (GB)
Title: Improvements in or relating to oil burning furnace fronts
IPC: F23D11/00
Filed: 1920-05-25
Abstract: 160,693. Reid, J. May 25, 1920. Liquid-fuel furnaces.-A hollow front for oilfired furnaces has an air-cooled lining 35, the air from which is supplied transversely to the flame from a burner 12 located in front of the rear plate 19 of the furnace front. The front shown comprises a front plate 1 having a flange 3 on which seats a closure 4 sliding on a sleeve 7, the closure being withdrawn when working under natural draught. The sleeve 7 also carries a conical deflector 13 and an outer air deflector 14 with spiral or straight blades 18. An air cylinder 28 encircles the end of the deflector 14, and has an inwardly-converging deflecting flange 30. The lining is formed of four pieces surrounding the opening in the rear plate 19 and having outer walls 36 and inner walls 37 with beads 42 to retain a fire-brick lining 43. Air passes from the hollow front through ports 40 to the lining, and is delivered thence transversely to the flame through the port formed between the fire-bricks 43 and the flange 30 of the cylinder 28. In modifications, the lining extends round the top and sides only of the opening in the rear plate, the arrangement of the air cones is varied, and the burner is mounted on the furnace door.
Patent GB-101873-A (GB)
Title: Improvements connected with the Brake Control of Trains.
Inventor: WOODWARD CHARLES HEMLET
IPC: B61L3/00
Filed: 1916-10-09
Abstract: 101,873. Woodward, C H. Oct. 21, 1915, [Convention date]. Fluid-pressure.-Relates to train control systems in which the train is permitted to run under danger conditions provided the speed does not exceed a predetermined limit. The speed control comprises a small constant-voltage alternator i driven from the train axle and in circuit with an inductance k and the winding e of the brake valve a. If the speed exceeds a given limit, the current in this circuit becomes too weak to hold the valve a closed, and if, in these conditions, the winding d of the train control circuit is de-energized, the valve is opened. In safety conditions, the circuit of the winding d is closed and maintains the valve a also closed.
Patent GB-260646-A (GB)
Title: Improvement in processes of treating solid ferrous material
IPC: C21D1/76
Filed: 1925-06-02
Abstract: 260,646. Westberg, S. June 2, 1925. Modifying chemical characters of metals.- in a process for removing impurities such as carbon, sulphur, phosphorus &c. from solid ferrous material, the material is heated to a temperature between 800‹ C. and its melting point in a non-oxidizing atmosphere containing free hydrogen or hydrogen diluted with a gas or gases inert to iron and in the presence of or in contact with a material which combines with the imparities or the products of their combination with hydrogen. The material used may be alkaline earth oxides or metals such as aluminium or alloys such as silicides of aluminium, calcium, magnesium, barium or strontium, or a mixture of the oxides and the metals or alloys. When the metals or alloys are used, the hydrogen is regenerated. The ferrous material may be embedded in or coated with the oxides &c. In an example the ferrous material in the form of rods, sheets &c. is embedded in lime or another alkaline earth oxide in a container or in a muffle or electric furnace and heated to a temperature of 800-1400‹ C., hydrogen or a mixture of hydrogen and nitrogen being passed into the furnace &c. The gas in the furnace &c. may be maintained at atmospheric pressure or a pressure lower or higher than atmospheric pressure. Specification 3333/82 is referred to.
Patent GB-823710-A (GB)
Title: Improvements in or relating to electrical control systems for machines
IPC: H02P1/02
Filed: 1956-05-09
Abstract: 823,710. Control of motors; controllers. IGRANIC ELECTRIC CO. Ltd. May 9, 1956 [June 16, 1955], No. 14400/56. Class 38 (3). [Also in Group XXXV] A motor-driven press 10 is started and and stopped by means of a solenoid 16 controlling a clutch and brake. The solenoid is energized by depressing a push-button 36 and then releasing it after the press-parts have moved to a position in which the operator cannot be injured, a limit switch 30 being closed when the press reaches a predetermined position to complete a maintaining circuit for the solenoid. The press cannot be caused to run continuously by keeping the button 36 depressed. If this is attempted, contact 24a of relay 24 remains open and, after relay 22 is de-energized by the opening of limit switch 28, an energizing circuit for the contactor 20 and solenoid 16 cannot be established.
Patent GB-664801-A (GB)
Title: Improvements in and relating to valve voltmeters and d.c. amplifiers
IPC: G01R17/16
Filed: 1949-05-30
Abstract: 664,801. Thermionic valve voltmeters. WILKINS, S. R., ATTWOOD, W. H., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. June 22, 1950 [May 30, 1949], No. 14512/49. Class 37. [Also in Group XL (c)] A valve voltmeter or D.C. amplifier comprises two multiple-grid valves in cathode follower circuits arranged in a balanced bridge circuit with a meter across the two cathodes to indicate out-of-balance current, and having the inner grids of the valves connected to a source of positive voltage sufficiently high to electron saturate the grid-cathode space. Two pentodes A, B have their inner grids 10 connected through resistances 11 to a source of positive voltage 12 and also through load resistances 13 to the cathodes 14. The input signal is applied to an outer grid 15 of the measuring valve A, and since the valve functions as a cathode follower the output signal occurs at the grid 10. The indicating meter 16 is connected between the grids 10, the cathodes 14 being connected to the negative terminal 17 through loads 18. The arrangement is also suitable for use in balanced D.C. amplifier input circuits as used for electro-cardiographs and encephalographs.
Patent GB-501825-A (GB)
Title: Improvements in processes for shuttleless weaving and in looms for such improved processes
IPC: D03D47/00
Filed: 1937-05-25
Abstract: 501,825. Shuttleless looms. BALLUFF, G. May 25, 1937, No. 14556. Void. Convention date, May 25, 1936. [Classes 142,(i) and 142 (ii)] The weft is inserted in loop form by adjustable parts 19 at each side of the loom, one taking the loop to a position just short of the middle of the shed whence it is taken across the shed by the oppositely moving part. The end of the thread is thus caused not to emerge from the edges of the fabric. The parts 19 are mounted on carriages 18, guided in a box 11 carried by runners 9 of a carriage 8 which is reciprocated on slide rails 10 by adjustable crank mechanism 7, 5 from a motor having pedal actuating gear and changespeed mechanism. The box supports driving- bars 12 connected to lazytongs devices 13 having rollers 15 engaging fixed oblique rails 16, whereby as the box 11 is reciprocated the bars 12 are actuated. These carry pinions engaging racks 17<1> fixed to the carriages 18, which are thus reciprocated. When several wefts are used, these are presented to the parts 19 by mechanism controlled by cams on small chains 29 passing over a card roller. Shedding mechanism.-The heald frames are actuated by rollers 28 controlled by inclined planes 27 on a cross-bar 26 actuated by a lever 25 and a cam 24 on the axle of a ratchet wheel 23 turned intermittently by a pusher 22.
Patent GB-880501-A (GB)
Title: Wire packaging machine
IPC: B65H54/82
Filed: 1960-04-26
Abstract: 880,501. Winding and reeling wire. VAUGHN MACHINERY CO. April 26, 1960 [July 27, 1959], No. 14631/60. Class 83 (4). Machine for winding and reeling wire includes a vertical rotary take-up block around which the wire is wrapped to drop therefrom in the form of convolutions into a container on a rotating turn-table, an accumulator between the block and the turn-table rotated in the same direction as the turntable, an actuator operative to move the accumulator from an inactive position in which the convolutions descend therepast to an active position whereat the descent of the convolutions is arrested. Wire W is wrapped around a capstan 5, rotated from a shaft 6 through a clutch 35, gears 15, 14, and hollow shaft 12, the turns being forced upwardly by a bevelled shoulder 16 and pressed against the capstan by a roller 17. The top turns drop into a container D supported on a turn-table 9 driven from a shaft 10 through clutch and gear means. The turntable 9 may be driven at a speed the same as or slower than that of the capstan 5 or at a varying speed. An accumulator 7, for holding coils when the container D is full and being replaced, comprises fingers 24 pivoted to a plate 23 in a tubular shaft 20 journalled in the capstan drive shaft 12 and rotated from a shaft 8 through a clutch 36 and gears 26, 25. The fingers 24 are swung up from an inoperative to an operative position by a rod 23 moved axially within the shaft 20 by a pneumatic cylinder 29. A counter 38 driven from the gear 15 counts the revolutions of the capstan and, when a predetermined number of convolutions are in the container D, energizes the clutch 36 to rotate the accumulator 7, operates a valve 32 to cause the pneumatic cylinder 29 to move the accumulator fingers 24 to their operative position and de-energizes a clutch in the drive to the turn-table 9. The wire W may then be cut out and the full container D replaced by an empty one while the wire turns are being accumulated on the fingers 24 to be dropped into the empty container D when the latter is in position. The accumulator 7 and turn-table 9 may be driven by the same motor. A line of pairs of machines may be driven by the shafts 6, 8 and 10.
Patent GB-164958-A (GB)
Title: Improvements in draw-bar couplings for use in connection with agricultural tractors
IPC: B60D1/44
Filed: 1920-05-28
Abstract: 164,958. Edmonds, P. J. May 28, 1920. Couplings for tractors.-Relates to couplings adjustable by worm gearing while the tractor is in motion for varying the track of an agricultural implement relatively to the tractor and consists in providing a guide for the coupling link. A U-shaped frame is secured to the tractor and carries transverse bars e the upper bar serving as a guide for the coupling link. The coupling link is formed of two bars a secured together by bolts b, provided with distance pieces d so as to accommodate the guide-bar e, the lower bar a carrying a nut j engaging a suitably operated worm l by means of which the coupling link is adjusted laterally with respect to the tractor.