baber/WOPTO huggingface dataset:
Patent GB-1498338-A (GB)
Title: Sterilization device
IPC: A61F6/06
Filed: 1976-04-08
Abstract: 1498338 Sterilization device for human females PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 April 1976 [11 April 1975] 14334/76 Heading A5R A device for sterilizing human females by transuterine tube coagulation comprises a probe formed by a flexible catheter (5), Fig. 1 (not shown), having on one end a metal portion 7 forming an active electrode, the electrode -being connected via a connection 9 on the catheter (5) near the other end thereof to a generator 17 which generates an electrical signal of a predetermined frequency, and indicating means 39, 45 for providing information as regards the variation of the current and voltage delivered by the generator 17 to the active electrode (7). To  facilitate insertion into a Fallopian tube (3), the one end portion of the catheter is generally S-shaped, correct insertion with electrode (7) closing off the tube (3) being checked by X-ray after, injecting X-ray contrast liquid via the catheter. To check correct connection of the active electrode (7) and an earthed neutral electrode to the generator 17 and patient, the voltage at the catheter connection 9 is monitored bya meter 33 with a switch 27 in the position shown in which the electrode (7) is connected to generator 17 via a voltage divider 29, 35 such that the generator current is then below that needed for tissue coagulation. To effect the coagulation, switch 27 is put in its other state so that electrode (7) is connected to generator 17 via an incandescent lamp 39. As coagulation proceeds the current through electrode (7) decreases and the voltage thereat increases, the point at which the coagulation should be - terminated being indicated by lamp 39 extinguishing and a gas discharge lamp 45 lighting. Voltages proportional to the output power and load of the generator 17 are produced by multiplier 57 and divider 59 respectively and are fed to a unit 67 which turns off generator 17 when its output voltage and current are at predetermined levels. Generator 17 produces current surges of 2 MHZ signals and may be of the type disclosed in Specification 1321364.
Patent GB-946798-A (GB)
Title: Apparatus for transporting slivers
IPC: D01G21/00
Filed: 1961-04-20
Abstract: 946,798. Endless conveyers. MASCHINENFABRIK RIETER A.G. April 20, 1961 [April 29, 1960], No. 14357/61. Heading B8A. [Also in Division D1] Sliver 2 is fed from a carding machine to a sliver accumulator 3 and thence to an endless conveyer. The latter comprises a longitudinally split tube 6 which is normally closed so as to surround the sliver. The tube 6 is opened for the feeding in of the sliver 2 by the action of a roller 5. At the discharge station (Fig. 2), the belt opens by the action of passing around a reversing roller 13. This action is assisted by a roller 17. The tube 6 has a rib 9 which engages a corresponding groove in the roller 13.
Patent GB-170885-A (GB)
Title: Improvements in pumps
IPC: F04B49/00
Filed: 1920-05-26
Abstract: 170,885. Churcher, W. R. M., and Worthington Simpson, Ltd. May 26, 1920. Cam-actuated pumps; pumps with reciprocating and rotating piston; revolving-cylinder pumps; regulating delivery of two combined pumps.- In a pump of the kind comprising a plurality of cylinders and reciprocating and rotating pistons, means are provided for varying the delivery without altering the speed of rotation of the pistons. In one form, two pumps f, f<1> are actuated by two pistons b rotated by the gearwheels d, e and reciprocated by engagement between cam slots c in the pistons and pins in the cylinder. The delivery is varied by varyiny the phase of the two pistons by rotating one cylinder a relatively to the other. The rotation of the cylinders may be effected by means of the wormgearing shown in Fig. 2. The spindle g carries a nut h the distance of which from a stop-piece i indicates the adjustment of the cylinders.
Patent GB-475516-A (GB)
Title: Improvements in or relating to nets for catching animals
IPC: A01M23/32
Filed: 1936-05-21
Abstract: 475,516. Animal traps. TAYLOR, P. May 21, 1936, No. 14394. [Class 5 (i)] A device for catching animals, particularly rabbits, comprises a net b secured to a frame made of rods c pivoted to pegs d driven into the ground, one edge of the net being secured to the ground by crooks g. In use, the net is placed between the feeding ground and the burrows. When the animals are feeding, the net is raised into a vertical position by means of cords h passing over pulleys on posts a. The net is then lowered by a cord and the rabbits are caught in the loose folds of the net. In a modification, the frame is dispensed with, the net being secured along one edge by crooks, and raised vertically by cords co-operating with three posts.
Patent GB-872069-A (GB)
Title: Improvements in instruments for testing the voltage of storage batteries
IPC: G01R31/36
Filed: 1959-04-28
Abstract: 872,069. Electric measurements. NOLTEN, F. April 28, 1960 [April 28, 1959], No. 14397/59. Class 37. A voltage tester has two pointed legs 1, 2 across which is a voltmeter 9, and a flexible resistance 5, the legs being movable relative to each other. The resistance is formed of one or more resistance wires in a bent strip or helical coil, or coils formed with right and left-hand turns.
Patent GB-593595-A (GB)
Title: Improvements in the slack adjusting mechanism of brake gear
IPC: B61H15/00
Filed: 1945-06-07
Abstract: 593,595. Compensating for wear in brakes. GRESHAM & CRAVEN, Ltd., and GRESHAM, J. N. June 7, 1945, No. 14410. [Class 103 (i)] Relates to slack-adjusters for brake mechanism, in which a housing carrying a pawl is turned by engagement of an arm in a slot in a projection on the housing so that the pawl slips a ratchet tooth during the application stroke if this is excessive and during the return stroke turns the ratchet wheel and thus one part of a screw- and-nut member to take up the slack. In order that the adjustment may not be excessive, the slot is so formed that the arm is only effectively coupled to the housing during a predetermined part of the stroke of the arm. As shown, a pull-rod of a brake-operating mechanism comprises a screw-threaded rod a, a tubular part b and a rotatable sleeve c to which is secured a nut d engaging the rod a. A ratchet wheel i secured to the sleeve c is engaged by a pawl carried by a housing g rotatable on the sleeve. One arm m of a lever pivoted at p on the member b is connected by a link to a fixed point o and the other arm l of the lever extends through a slot k in an arm j carried by the housing g. The slot is of approximately T-form. During movement of the pull-rod to the right hand to apply the brake, the lever 1, m has an initial idle movement about its pivot p in which the arm l moves across the top of the slot. As the brake blocks wear, the arm l engages the other side of the slot and so turns the arm j to the position j<1> and then to position j<11>, causing the pawl to slip over the ratchet teeth, and further movement of the lever if it takes place does not affect the position of the arm j since the arm l then moves along the stem of the T. During the return movement of the pull-rod and the lever, the arm is returned from position j" to the original position shown during which the ratchet i is turned to shorten the rod.
Patent GB-211393-A (GB)
Title: Improvements in or relating to apparatus for producing horse hair thread
IPC: D02G3/14
Filed: 1923-06-01
Abstract: 211,393. Giesler, C. F. R. June 1, 1923. Feeding hairs singly from bundles to spinning- apparatus.-In a feeding-device for machines for producing endless horse hair threads, the threads 2 are pulled out of a bundle by being gripped by a needle 3 which moves towards a finger 1 supporting the threads, the threads being moved by the finger and needle towards a pair of grooved gripper cylinders 5 and guided between the cylinders by a feeding-bow 6. The threads from the cylinders pass through a feeding-funnel 30 to a spinning-machine. The needle 3 and finger 1 carrying the pivoted bow 6 are mounted on cam-controlled levers 17, 7 pivoted on a crankoperated slide 13 movable in straight guides 14. An arm 32 on the bow 6 is movable along a guide 33 so that the finger and needle may pass through the bow when they move towards the cylinders. When the finger and needle move away from the cylinders and separate, the bow guides the thread past the conical ends 31 of the cylinders.
Patent GB-761912-A (GB)
Title: Improvements relating to mercaptobenzothiazole
Filed: 1954-05-18
Abstract: A process of treating crude mercaptobenzothiazole, prepared by reacting aniline, carbon bisulphide and sulphur, to recover substantially the entire mercaptobenzothiazole content thereof in a state of selected predetermined purity without formation and retreatment of tarry settler heels and of recovered liquors, comprises digesting the crude mercaptobenzothiazole in aqueous solution with caustic soda to dissolve substantially all solids including substantially the entire mercaptobenzothiazole content, adding to the resultant liquor a material which provides an active available oxygen atom, is capable of oxidizing mercaptobenzothiazole to dibenzothiazolyl disulphide but is selective in its oxidizing capacity, in an amount such that oxidation and precipitation of dissolved impurities occur to the extent necessary to obtain a product of selected predetermined purity without oxidation of mercaptobenzothiazole, and separating the resultant mercaptobenzothiazolefree tarry precipitate. Suitable oxidizing materials are salts of per-acids, peroxides, chlorites and hypochlorites (the last three preferably being used in the presence of an alkali binding agent), and the maximum proportion thereof may be determined by potentiometric titration of a sample of the liquor. The process may be preceded by steam distillation of the crude mercaptobenzothiazole at 170-240 DEG  C., whilst between the digestion and oxidation steps there may be interposed a dilution of the liquor to effect a preliminary precipitation of some of the impurities.  The solution finally obtained may be acidified to precipitate mercaptobenzothiazole, or subjected to further reaction, e.g. oxidation to dibenzothiazolyl disulphide.  In examples: (1) crude mercaptobenzothiazole melt is subjected to countercurrent stripping with steam at 210 DEG  C., the product is dissolved in aqueous caustic soda, and the solution is diluted with water, warmed with ammonium persulphate, filtered and the filtrate acidified to precipitate mercaptobenzothiazole of 99.3 per cent purity; (2) the amount of ammonium persulphate in (1) is halved, giving a product of 97.5 per cent purity; (3) to (6) the ammonium persulphate in (1) is replaced by (3) potassium persulphate, (4) sodium hypochlorite and sodium bicarbonate, (5) hydrogen peroxide and sodium bicarbonate, and (6) sodium chlorite and sodium bicarbonate; (7) the steam stripping step in (1) is omitted; (8) the degree of dilution in (1) is decreased and the proportion of ammonium persulphate somewhat increased.  Comparative experiments in which the oxidation step is omitted in (1) and (7) are described, and additional oxidizing materials are listed. Specification 734,970 is referred to.
Patent GB-872465-A (GB)
Title: Solid fuel heating appliance of the convector type
Inventor: PROTHERO DAVID RHYS
IPC: F24C13/00
Filed: 1959-04-29
Abstract: 872,465. Open fireplaces; setting and fixing in place. RADTATTON Ltd. April 22, 1960 [April 29, 1959], No. 14596/59. Class 126. [Also in Group XIII] A solid fuel fireplace for mounting in an air heating recess 8 comprises separable body portions, a front portion 1, housing a grate 4, and a rear portion 2, housing a boiler 11, which is secured to the floor of the recess 8 independently of the front portion and communicates through a neck 18 with a chimney 20. Lugs 13 on the portion 2 are screwed to the floor of the recess and lugs 15 are screwed to lugs 16 on the portion 1. A projecting part 22 of the boiler forms with a top member 29 a throat controlled by an adjustable damper 24 and a flue 26 behind the boiler is controlled by an adjustable damper 27.
Patent GB-1262822-A (GB)
Title: Improvements in or relating to high-voltage switchgear cubicles
IPC: H02B11/04
Filed: 1970-03-25
Abstract: 1,262,822. Switchgear structures. SIEMENS A.G. 25 March, 1970 [25 March, 1969], No. 14611/70. Heading H1N. A switchgear cubicle has a truck-type circuit breaker 2 and bus-bars 12, 13, 14 secured to a partition 19 by insulators 16, 17, 18 each of which supports an insulating housing part 24 of insulating material. An insulating housing (45) is formed by a housing part 26, of insulating material, which may be plastics reinforced with glass fibre, being clipped over the insulating housing part 24 and being secured in place by two caps 43 which are slidable along the busbars. The housing contains the respective busbar, branch conductor 30 and the plug connection with conductors 34. The housing may be internally provided with a conductive coating, e.g. by metallization, which may be connected to the bus-bars. A voltage transformer 9 is provided on the circuit breaker and a current transformer 40 provided before the cable outlet 41.
Patent GB-290643-A (GB)
Title: Improvements in or relating to the remote control of electric power substations
IPC: H02J13/00
Filed: 1927-10-07
Abstract: 290,643. Associated Telephone & Telegraph Co., (Assignees of Hershey, H. E.). Oct. 11, 1926, [Convention date]. Divided on 278,746. Drawings to Specification. Fusible cut-outs.-Relates to systems for selectively controlling and supervising apparatus units, e.g. circuit-breakers, located at a remote substation in which alarms are given in the event of the blowing of the supply battery fuses. The system described is identical with that described in Specification 278,746.
Patent GB-1240090-A (GB)
Title: Electronic timing device
IPC: G04F10/10
Filed: 1970-03-26
Abstract: 1,240,090. Measuring time intervals. INTERNATIONAL BUSINESS MACHINES CORP. 26 March, 1970 [30 April, 1969], No. 14657/70. Heading G4H. A device for measuring time intervals employs the vernier principle and uses two oscillators with frequencies of 10 MHz and 10À1 MHz respectively. The first course measurement is made by gating the pulses from oscillator 30 (at gate 20), with the time period input, on leads 111 and 112, and counting the pulses with counter 10. The time interval between the last pulse into the counter and the end of the time interval to be measured is then measured and recorded on a first vernier counter 11. The vernier oscillator 31 is started by the pulse indicating the end of the time period to be measured. Its output pulses are counted by counter 11 until gate 21 and the oscillator are stopped by the output signal from comparator 32. This output signal is produced by comparator 32 when the oscillators 30 and 31 are in phase. The in-phase signal from comparator 32 is also fed to scalar 34 via delay 33, causing the scalar to advance to its second stage and restart oscillator 31. The second stage of the vernier system measures the time interval between the time at which the last vernier clock pulse was counted and the time at which the clock pulses from oscillator 30 and 31 are in phase. The second stage of the vernier operates as the first stage except that gate 22 is opened so that counter 12 counts the 2nd stage vernier pulses. N vernier stages may be oparated in this way. The comparator (phase coincidence detector), Fig. 4, has two inputs 113 and 114 feeding into one AND gate 115. The output of AND gate 115 comprises a series of pulses whose width is equal to the overlap width of the input pulses. The output of AND gate 115 is fed to monostable 120 whose monostable state gives a + ve output and whose relaxation time is such that the output is steadily + ve provided input pulses of width greater than a certain minimum value are received. Flip-flop 121 is thus held in the " 1 " state, giving a - ve output, until just before phase coincidence. The output of the AND gate 115 is also fed to smoothing circuit 133, 134, the output of which rapidly rises at the start of the comparison and decays slowly as phase coincidence is approached. When the output of the smoothing circuit drops below a bias voltage 135, the output of differential amplifier 132 changes sign, causing the flip-flop 121 to change sign, indicating phase coincidence. The flip-flop 121 is reset by the output of monostable 120 at the start of the next comparison.
Patent GB-779241-A (GB)
Title: Process for the production of a methylol derivative of dicyclopentadiene
IPC: C07C35/22
Filed: 1953-05-26
Abstract: The invention comprises tricyclodecane-[5,2,1,02.6.]-methylol-4 and a process for the preparation thereof, which comprises subjecting dicyclopentadiene to a mild and partial hydrogenation at a temperature below 100 DEG  C., subjecting the resulting product to the oxo synthesis reaction for the addition of carbon monoxide and hydrogen, and subjecting the aldehydic product to hydrogenation.  The dicyclopentadiene is preferably admixed with a diluent boiling below 150 DEG  C., such as a saturated aliphatic hydrocarbon (e.g. heptane) or an aromatic or hydroaromatic hydrocarbon, and the initial hydrogenation is preferably conducted at 70-85 DEG C. in presence of a catalyst containing a Group VIII metal (e.g. nickel) on a support (e.g. kieselguhr), and an alkaline earth or earth metal as promoter, the hydrogenation being discontinued when sufficient hydrogen to saturate one double bond of dicyclopentadiene has been absorbed.  The oxo reaction is preferably conducted below 160 DEG  C. and in presence of cobalt-containing material comprising or capable of forming a cobalt carbonyl hydride, such as a weakly acid solution of cobalt sulphate, preferably also containing magnesium sulphate.  The aldehydic product is preferably subjected to hydrolysis prior to hydrogenation, or to a simultaneous hydrolysis and hydrogenation in presence of water and a cobalt catalyst at a temperature of 160-230 DEG  C.  Tricyclodecane-[5,2,1,02.6] is obtained as a by-product.
Patent GB-496141-A (GB)
Title: Improvements in covers for retorts, autoclaves and the like
IPC: F16J13/20
Filed: 1937-05-27
Abstract: 496,141. Doors for resisting fluid pressure. CATALYSTS, Ltd., and LUCAS, O.D. May 27,1937, No. 14710. [Class 123 (i)] In a hinged double door for a retort, autoclave, or like vessel, the space h between the separately seating parts d, i is filled, when the door is closed, with steam or an inert gas under a pressure exceeding that inside the vessel. The inner part d, which may consist of an asbestos disc held between metal plates, is first closed and is pressed against its seating by a spring k. The outer part is secured by a spider bar f and screwed bolts g. The asbestos disc may be perforated to admit steam or gas under pressure to a groove between the seatings. The steam or gas is supplied to the space h through a flexible pipe attached to the door.
Patent GB-1014691-A (GB)
Title: Improvements in marine vessels having cargo ramps
IPC: B63B27/14
Filed: 1963-05-16
Abstract: 1,014,691. Loading ramps for ships. GEORGE BROWN & CO. (MARINE) Ltd. and J. G. BROWN. Aug. 14, 1964 [May 16, 1963], No. 14781/63. Headings B8E and B8H. [Also in Division B7] A vessel (see Division B7) is provided with an external ramp 18 which can be extended over a quay 19 and is hinged at 20 to a platform that can be raised or lowered by threaded rod or hydraulic ram devices to position the ramp to suit the height of the vessel relative to the quay and an internal ramp 21 hinged at one end to the platform, the other end being adjustable (via said hydraulic ram device or via a winch 10a) to deliver cargo on to or receive cargo from one or more decks.
Patent GB-202089-A (GB)
Title: Improvements in or connected with fastening devices for windows, doors, and the like
IPC: E05F11/00
Filed: 1922-05-25
Abstract: 202,089. Hart, A. May 25, 1922. Champs, screw.-Sliding articles such as doors and windows are secured in closed or partially open position by an L-shaped screw-bolt passing through a bracket on one member and engaging notches in a plate fixed to the other member and tightened up by a wing nut. The figure shows the invention applied to a pair of sliding window sashes. The bolt d' slides and turns in a bracket a' secured to one sash b, and its hookshaped end j<1> engages notches i<1> in a plate f<1> secured to the other sash h. The bolt is tightened up by the wing-nut e. In the case of metal articles, the plate j<1> may be an integral part of the article.
Patent GB-552776-A (GB)
Title: Improvements in or relating to the manufacture of plate-shaped ceramic objects
IPC: C04B33/13
Filed: 1941-11-17
Abstract: 552,776. Synthetic resins. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Nov. 17, 1941, No. 14789. [Class 2 (iii)] [Also in Groups V and XL] A mixture comprising 10 gr. of polystyrene, 20 gr. of styrene, 1 gr. of benzoyl peroxide and 100 gr. of soapstone is extruded into strip form, heated for half an hour at 50‹ C., shaped by punching and sintered.
Patent GB-457117-A (GB)
Title: Improvements in and connected with bag making machinery
IPC: B31B23/00
Filed: 1935-05-21
Abstract: 457,117. Making paper &c. bags. FRENCH, G. W., and BEASLEY, FRENCH, & CO., Ltd., Winterstoke Road, Ashton Gate, Bristol. May 21, 1935, Nos. 14846 and 31395. [Class 94 (ii)] In a paper &c. bag making machine, the paper &c. 1 is fed by rolls 3, 4 as a substantially flat tube over a former 2 to a cutting zone, the upper and lower layers being spaced apart, where it is cut completely through by a pair of rotary cutters 6, 7 moving at substantially the same speed and in the same direction as the paper &c., the paper &c. being unsupported on at least one side of the path of each cutting member. The paper &c. tube is steadied by rolls 5, 5 as it approaches the cutting zone. Roller pair 8, 9 is formed slightly larger at 10 so to slightly accelerate the feed immediately before and during cutting so that the paper &c. is taut during severing. If bags of different length are required the speed of feeding of the paper &c. tube may be varied by change gears, and, so that the cutters may move, during cutting, at the new speed, they are driven through an adjustable crank arm device. The cutting edges, which may be bowed, are preferably serrated and enter the material substantially at right angles thereto. The knives may be driven alternatively by a parallel crank arrangement in each instance.
Patent GB-1007585-A (GB)
Title: Allophanic acid derivatives and their preparation
IPC: C07C335/28
Filed: 1963-04-16
Abstract: The invention comprises compounds of formula <FORM:1007585/C2/1> wherein R is a bisphenolic radical substituted by hydroxyl, alkyl or alkenyl groups, and a method of preparing them by reacting allophanyl chloride with a bisphenol.  Specified monoallophanates are prepared from isopropylidenebisphenol, 4,41 - propylmethylenebis-(2 - t - butyl - 5 - methylphenol) 2,21 - methylenebis - (2 - t - butyl - 4 - ethylphenol) and 2,21-methylenebis - (2 - t - butyl - 4 - methylphenol).