baber/WOPTO huggingface dataset:
Patent GB-841034-A (GB)
Title: Improvements in or relating to queueing ticket dispensing apparatus
IPC: F04D25/12
Filed: 1957-09-23
Abstract: 841,034. Ticket-issuing machines. TURNO-MATIC A.B. Sept. 23, 1957 [Sept. 24, 1956], No. 29870/57. Class 106 (3). [Also in Group XVII] A device for dispensing consecutively-numbered queueing tickets or tags 9 from a roll in a casing 3 comprises feelers 14, 7 engaging cutouts 13 uniformly spaced along the perforated paper strip to lock the strip during its manual extraction so that a ticket can be torn off, and to release the strip as soon as the torn-off ticket has been removed. When the free end of the feeler 14 rests on a ticket projecting through an opening 11 in the casing 3 the feeler 7 is spring- pressed into the cut-out 13 of the third ticket from the free end of the strip as shown, and allows a blocking arm 8 to swing downward against the second ticket to lock the strip. The first ticket may thus be detached by pulling it, and the feeler 14 then swings downwardly, raising the feeler 7 and the blocking arm 8 to free the strip. When the strip is pulled again to bring the next ticket into the tear-off position the strip lifts the feeler 14, pressing the feeler 7 against the strip until it enters the next cut-out 13 and forces the blocking arm 8 against the strip.
Patent GB-673128-A (GB)
Title: Improvements in or relating to telephone receivers
Inventor: ASHTON JOSEPH PHILIP
IPC: H04R1/10
Filed: 1949-11-22
Abstract: 673,128. Earpieces. AMPLIVOX, Ltd. Nov. 22, 1949, No. 29940/49. Class 40 (iv). The receiver unit of a headphone set comprises an apertured plastic earpiece 3 to which a miniature receiver 1 is attached by snapaction, the receiver being provided with a belled protrusion 2 around its sound orifice which is engaged by a circlip 5 located in a metal liner 4 in the earpiece aperture. The earpiece is fitted with a moulded rubber cushion 13 and is attached with limited pivotal movement to a stirrup member 11 of a headpiece by integrally formed lugs 9 and screws 10.
Patent GB-777561-A (GB)
Title: Process of continuously dehydrating muds containing recoverable minerals
IPC: F26B5/08
Filed: 1951-12-21
Abstract: 777,561. Centrifugal separators. SIEBTECHNIK GES. Dec. 21, 1951 [Dec. 22, 1950; Jan. 26, 1951; March 12, 1951], No. 30004/51. Class 23 [Also in Group I] In a process for dehydrating sludge in which the sludge is thickened in a main hydro-cyclone, the thickened sludge from the hydro-cyclone is passed through a centrifuge, and at least part of the liquid discharged from the centrifuge is passed through a second hydro-cyclone, coagulating substances are added to the sludge. In the plant shown, coal or ore sludge is supplied to a main hydro-cyclone 2, and the thickened sludge from the hydro-cyclone passes through a centrifugal strainer separator 4 having a rotary screen which discharges dehydrated sludge at 5 and liquid streams 6, 14. The stream 6 together with the liquid stream 7 discharged from the hydro-cyclone is led to a second hydrocyclone 8, tar oil or other coagulating substances being added to the stream entering or the thickened stream leaving the second hydro-cyclone. The thickened stream from the second hydro-cyclone is returned to join the sludge stream entering or the thickened stream leaving the main hydrocyclone. In a modified plant (Fig. 2, not shown) the liquid streams from the hydrocyclones are led to a third hydro-cyclone and the thickened streams from the second and third hydro-cyclones are returned to the sludge stream entering or the thickened stream leaving the main hydro-cyclone. In another modified plant (Fig. 3, not shown) the thickened streams from the second and third hydro-cyclones are directed to a second strainer separator having a fine mesh rotary screen, and all the liquid discharged from the first strainer separator may be led to the second hydro-cyclone. The coagulating substance may be added to the sludge stream entering the main hydro-cyclone. Multihydro-cyclones may replace the first hydrocyclone.
Patent GB-645675-A (GB)
Title: Improvements in high-tension supply sources for cathode-ray tubes and other devices
IPC: H02M3/33
Filed: 1948-11-18
Abstract: 645,675. Converting. ANDERSON, R., and PLESSEY CO., Ltd. Nov. 18, 1948, No. 30021. [Class 38 (ii)] Relates to high-tension supply sources for cathode-ray tubes and other devices in which a high voltage is derived by rectification and smoothing of the output of a radio-frequency oscillator. A cathode-ray tube CRT of a television receiver is shown, valve V1 being a video-frequency amplifier, valve V2 having coils L1, L2 in its grid circuit and acting as an oscillator. Coil L3 supplies the output of the oscillator to rectifier diode valve D which is associated with a smoothing capacitor S connected to the anode of the tube CRT. If a signal variation at the control grid of the valve V1 causes the mean potential of that grid to increase in the positive sense the cathode of the tube CRT is rendered negative since it is directly coupled to anode load resistor R1. The beam current of the tube CRT rises to increase the load on the H.T. source. A reduction of the voltage of the source is partly or wholly prevented since the potential of the grid of valve V2 is increased in the positive sense, giving an increased angle of anode-current flow in that valve, due to the direct coupling of the grid to cathode load resistor R2 through a network comprising capacitor C and resistors R3, R4. The time-constant of this network is equal to, or of the same order of magnitude as, that exhibited by the output circuit of the rectifier D.
Patent GB-846313-A (GB)
Title: Improvements relating to compressed fluid braking apparatus
IPC: B60T15/30
Filed: 1957-09-25
Abstract: 846,313. Compressed-air brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd., SIMMONS, A. W., and WASHBOURN, J. Sept. 25, 1958 [Sept. 25, 1957], No. 30089/57. Class 103 (1). In a direct release triple valve device for compressed fluid braking apparatus, particularly as used on railway vehicles of the kind including besides application and releases valves 22 and 26, controlling the communication of a brake cylinder respectively with an auxiliary reservoir (not shown) and with exhaust, a so-called quick-service valve device 17, which when the pressure of compressed fluid is reduced below its normal fully charged value, causes further fluid to be withdrawn from that pipe so as to intensify locally the brake pipe pressure reduction and thereby assist in propagating the reduction rapidly down the length of the brake pipe, in which triple valve device the application 22, release 26, and quick service 17 valves are all formed as resiliently seating lift valves, which are arranged to be operated in common by a single movable pressure suspense element 13 subject respectively on its opposite sides in the manner usual in direct releases triple valves to brake pipe pressure and auxiliary reservoir pressure. Specification 846,314 is referred to.
Patent GB-1402225-A (GB)
Title: Dynamic multistation photometerfluorometer
IPC: G01N21/07
Filed: 1973-06-25
Abstract: 1402225 Photo-electric concentration analysis UNITED STATES ATOMIC ENERGY COMMISSION 25 June 1973 [22 Aug 1972] 30110/73 Heading G1A [Also in Division G2] An analyzer determining fluorescein concentration in sample solutions comprises a rotor assembly defining a plurality of sample analysis cuvettes 8 each having a shallow portion 18 e.g. 0.2 cms. deep, bonded on one side by a transparent e.g. quartz window 3 and on the other side by an opaque wall disposed parallel to the window; an excitation light beam source 14 directing a beam through the window and into the shallow portion and a photodetector 12 detecting fluorescence emitted from a sample solution in the shallow portion. The source 14 produces an incident beam at an angle α of 30 degrees to the opaque surface whereas the detector 12 is disposed normally thereto to receive fluorescent emission but not reflected light. The determinations are effected simultaneously in the sense that if an average of 20 readings in a second is taken as the rotor rotates then there will be an average of 19 readings available for each of the samples before the 20th and final reading is effected for a first one of the samples. A photometric measurement is taken axially through the deep portion 17 of the cuvette as shown by light beam 24.
Patent GB-802768-A (GB)
Title: Melting of polyethylene
Filed: 1956-10-03
Abstract: Solid particulate polyethylene with a low bulk density is converted into a heat plastified and dense mass suitable for shaping and moulding, for instance by injection or by extrusion, by dispersing the polymer in a heattransfer liquid to produce a stirrable slurry, heating to a temperature to fuse the particles but below the degradation temperature, at a pressure to maintain the liquid state, coalescing the fused particles into a heat-plastified mass free of heat-transfer liquid and separating the plastic mass from the liquid. The heat transfer liquid is volatile, appreciably different in density from the polymer, and at the fusion temperature inert, e.g. water, ethylene glycol, di- or tri-ethylene glycol or mixtures thereof, or lower aliphatic alcohols.  The process may be continuous and a slurry with at least 40 per cent of liquid is formed and heated with agitation to between 100 DEG  and 300 DEG  C., allowed to settle, the molten polymer withdrawn and freed from traces of liquid by vaporization at reduced pressure, to yield a product of high density.
Patent GB-153185-A (GB)
Title: Improvements in nut-locks
IPC: F16B39/06
Filed: 1919-12-03
Abstract: 153,185. Despres, E. Dec. 3, 1919. Locking nuts. - One limb of a U-shaped key e engages coincident grooves in a nut and bolt, and the other limb of the key has a latchshaped beak g adapted to engage a groove or recess in the outer surface of the nut. The key may be made of spring material so that the beak snaps into engagement, or it may be of malleable metal, in which case the beak is forced into engagement. Reference has been directed by the Comptroller to Specification 521/10.
Patent GB-962163-A (GB)
Title: Improvements in or relating to apparatus for handling cement
IPC: E04F21/165
Filed: 1960-09-02
Abstract: 962,163. Coating apparatus. BRITISH UNITED SHOE MACHINERY CO. Ltd. Sept. 2, 1960 [Sept. 4, 1959 ; Sept. 21, 1959], No. 30276/60. Heading B2B. [Also in Division Fl] Apparatus for applying thermoplastic cement supplied in the form of a rod R comprises a device 20 including a heated casing 26 provided with a recess 32, and a passageway 30 through which the rod of cement is fed by a feeding mechanism 72 under the control of a device 98; together with a cement extruding gun 200, comprising a body portion, and a nozzle 210 having a cylindrical bore terminating in a discharge orifice, a plunger movable in the bore being linked to a control member 262, having a finger-engaging portion 264 by operating which cement can be extruded from the gun. When the gun requires refilling, its nozzle is inserted in the recess 32 and the control member 268 engages a control lever 99 which closes a switch 100 and causes a power source, not shown, to drive the feed wheels 71 and 73, feeding the rod of cement R into the passageway 30, where it is progressively melted and fed into the recess 32 and into the bore in the nozzle of the gun. This moves the plunger away from the discharge orifice and causes the control member 268 to disengage from the control lever 99 when the bore is filled, thus terminating feeding of the rod of cement. Specification 798,686 is referred to.
Patent GB-267052-A (GB)
Title: Improvements relating to water heaters
IPC: F24H1/10
Filed: 1926-11-30
Abstract: 267,052. Brand, H. Nov. 30, 1926. Heating by electricity.-In an electric water heater of the type in which the heating resistance b is wound on an insulating cylinder k mounted in a double-walled hollow cylinder c of thin sheet metal the whole being enclosed in an outer casing a through which the water flows, the outer cylinder is fortified by a protecting ring d which diverts the water entering by the inlet pipe a<1> against the wall of the casing a, down which it passes, flowing up inside the cylinder c to the outlet pipe f. The cylinder c is secured to the casing a by a flange c<1> and bolts h, and on the flange c' rests an insulating body t carrying the terminals and enclosed in a cap v through which the pipe f and the leads s pass by sealed joints.
Patent GB-299201-A (GB)
Title: Improvements in and relating to the low-temperature carbonisation of bituminous coals and the like
IPC: C10B1/04
Filed: 1927-11-11
Abstract: 299,201. Lander, C. H., and Shaw, J. F. Nov. 11, 1927. Drawings to Specification. Discharging.-In a metal vertical retort for low temperature carbonization of coal, the construction of the discharge device is the same as that described in Specification 299,202.
Patent GB-805890-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/36
Filed: 1957-09-27
Abstract: 805,890. Suction cleaners. HOOVER Ltd. Sept. 27, 1957 [Oct. 15, 1956], No. 30416/57. Addition to 767,647. Class 8(1). In a motor fan suction cleaner of the canister type as claimed in the parent Specification and wherein a substantial part of the weight of the cleaner is supported by a cushion of air formed by restricting the fan exhaust to form a superatmospheric pressure which is then communicated to a space 36 bounded by the carpet and the bottom 37 of the cleaner casing 10, the cushion of air results from a record fan 31 drawing from atmosphere and discharging into a chamber 40 where a superatmospheric pressure is generated and which is connected by a blower hose adapter 38 to the cushion face 36 from which air escapes beneath a skid 41. As shown both fans 24, 31 are driven by the one motor 30 but in a modification separate motors are provided which may be energised separately or in conjunction.
Patent GB-1009580-A (GB)
Title: Rear swing axle for motor vehicles
IPC: B60G3/24
Filed: 1964-08-04
Abstract: 1,009,580. Swing axle suspensions. FORD MOTOR CO. Ltd. Aug. 4, 1964 [July 25, 1963], No. 30474/64. Heading B7D. The driving wheels 20, 21 of a vehicle are mounted on swing axles 6, 7 connected by universal joint 18 on the vehicle centre-line and guided by trailing arms 10, 11 and the housing of the differential gear 5 is offset from the vehicle centre-line and supported from the sprung mass by a pivot 9 on an axis passing through joint 18 and the pivot 13 of trailing arm 11. The trailing arms are inclined to the longitudinal vehicle axis, sprung by coil spring shock absorber units and secured either to long hub support tubes 1, 2 surrounding the drive shafts (Fig. 1) or to short tubes (Fig. 3, not shown).
Patent GB-465275-A (GB)
Title: Improvements in or relating to the stabilization of solutions of per compounds
IPC: C01B15/00
Filed: 1935-11-04
Abstract: Solutions of per-compounds, for example, sodium perborate, are stabilized by treatment with silica gel.  The solution may be merely left standing in contact with the gel and then decanted, or it may be agitated intermittently or continuously with the gel and filtered, or it may be filtered through a bed of the gel.  The same batch of gel may be used for the successive treatment of many batches of solution. Its activity can be restored by treatment with a strong acid, e.g. concentrated hydrochloric acid, washing and drying say at 100 or 110 DEG  C.  Powdered gel is preferred to granular, examples showing the greater stabilizing efficiency of the former in the case of a 2 per cent sodium perborate solution. Specification 282,302, [Class 1 (iii)], is referred to.
Patent GB-648111-A (GB)
Title: Improvements in or relating to tripod mountings
IPC: F16M11/22
Filed: 1948-11-25
Abstract: 648,111. Hinges. HUMBERSTONE, J. E. Nov. 25, 1948, No. 30603. [Class 65(ii)] [Also in Group X] Legs 6 are secured to a tripod ladder 2 by universal joints one pivotal axis of each of which is provided by a transverse rod 1 which can form the top rung. U-shaped clips 4 at the tops of the legs are secured by bolts 5 which engage grooves 3 in the rod 1 and spread may be limited by stops 8 below the clips.
Patent GB-672637-A (GB)
Title: Improvements in alternating current dynamo-electric machines
IPC: H02K19/38
Filed: 1948-11-24
Abstract: 672,637. Synchronous machines. NEVILLE, S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 20, 1949 [Nov. 24, 1948], No. 30603/50. Divided out of 672,652. Class 35. A synchronous machine is excited by a main exciter which in turn is excited by an auxiliary exciter consisting of a permanent magnet alternator which supplies the field winding of the main exciter with D.C. via a rectifier, the auxiliary exciter being located next to the main machine. Fig. 2 shows an auxiliary exciter 24, 25 located between the main machine 11, 12 and the main exciter 17, 20, the three rotors 24, 11, 17 of the auxiliary exciter, main machine and main exciter respectively being all mounted on a shaft 10. Specification 672,652 is referred to.
Patent GB-1025571-A (GB)
Title: Oxyalkylation of amino-1,3,5-triazines
IPC: C08G63/685
Filed: 1963-08-02
Abstract: Amino-1,3,5-triazines having at least two amino groups, substituted or unsubstituted, and at least two replaceable hydrogen atoms attached to the total of the amino nitrogen atoms present, are oxyalkylated by admixing at a temperature of from 75 DEG  to 175 DEG C. said triazine and an alkylene or cycloalkylene oxide, optionally substituted by non-interfering substituents such as hydroxyl, aryl or aralkyl groups, in a molar ratio of 1 : 2 to 1 : 125 in the presence of a basic catalyst and a solvent containing dimethyl sulphoxide in an amount of from 5 to 100% by weight of the total solvent portion. Suitable 4,6 - diamino - 1,3,5 - triazine starting materials may be prepared in situ by admixing cyanoguanidine and nitriles such as acetonitrile, n-butyronitrile, iso-butyronitrile, benzonitrile, propionitrile, phenylacetonitrile, succinonitrile, trichloroacetonitrile and adiponitrile in the presence of a basic catalyst and a solvent containing the proportions of dimethyl sulphoxide specified above.
Patent GB-641365-A (GB)
Title: Improvement in frequency multiplying device
IPC: C04B35/468
Filed: 1947-11-20
Abstract: 641,365. Frequency changing. RADIO CORPORATION OF AMERICA. Nov. 20, 1947, No. 30827. Convention date, Dec. 18, 1946. [Class 40 (v)] A frequency multiplying network comprises an input circuit responsive to an input signal, an output circuit tuned to an integral multiple of the input signal frequency and, as coupiing between the input and output circuits, a capacitor having a reactive ceramic ferroelectric dielectric, the reactance of which varies as a non-linear function of the voltage applied to it. A capacitor 9 comprising a member 17 of barium-strontium titanate oxide, of an extremely thin section (e.g. 1.5 mils.) and of a diameter of the order of 5 mils., having electrodes 19, 21 deposited or coated upon opposite sides thereof, is used to couple two tuned circuits 3, 11, a unidirectional bias voltage from a battery 25, adjustable by means of a potentiometer 27, being applied to the device so that the frequency of the output from the tuned circuit 11 is an even multiple of the frequency of the input to the tuned circuit 3, odd multiples being derived when the slider 29 is set to short-circuit a condenser 23. The percentages of barium and strontium in the member 17 considerably affect the operation of the device. Specification 641,373 is referred to.
Patent GB-906532-A (GB)
Title: Improvements in or relating to the evaporation of salt water
Inventor: HALDANE THOMAS GRAEME NELSON
IPC: C02F1/04
Filed: 1960-09-07
Abstract: Salt water exposed to the atmosphere is evaporated by means of flowing hot water separated from the salt water by a thin flexible impervious membrane-which may be of plastics material, e.g. polyethylene or polypropylene, preferably containing a black filler-distended under the flowing hot water pressure to form one or more flow channels or tunnels (preferably parallel) beneath the salt water surface.  The invention comprises also apparatus for effecting the evaporation process, preferably incorporating (a) a weir for maintaining the desired pressure corresponding to a head of hot water above the salt water level and (b) means for weighting down the membrane and shaped to minimise risk of damage thereto.  The following alternatives are mentioned: (i) the membrane is a single sheet weighted down along a plurality of strip-like portions so that the flowing hot water forms a plurality of arch-shaped channels, egress of hot water at the periphery of the sheet being preferably prevented by raising it above the salt water surface; (ii) for membranes there are used a plurality of spaced parallel tubes each weighted down by internal means; (iii) as in (ii) except that the weights are provided above the tubes so that the flowing hot water maintains two parallel tunnels in each tube on opposite sides of the weights.
Patent GB-603331-A (GB)
Title: Mechanism for connecting the piston to the crankshaft in reciprocating engines and the like
IPC: F16H21/18
Filed: 1945-11-16
Abstract: 603,331. Mechanism for converting rotary into reciprocating motion and vice versa. ELANTS, A. T. Nov. 16, 1945, Nos. 30834 and 30835. Convention dates, Feb. 8, 1941, and March 20, 1941. [Class 80 (iii)] Mechanism for the transmission of power between a piston 2 and a crank-shaft 5 comprises an intermediate member 6 pivotally supported at 10 on a member 11 in a guide 13 and at 15 to a radius arm 14 working on a fixed pivot 16. The piston-rod 3 is pivotally connected at 7 to the member 6 and the crankshaft is in driving engagement therewith through a block 9 rotatably mounted upon the crank-pin 4 and in sliding engagement with a surface 8 of the member 6. The arrangement is such that the member 6 undergoes a combined oscillation in the direction of the piston movement about the pivot 10 and a lateral reciprocation in the guide 13 which results in a substantially linear movement of the piston-rod 3. Side thrust on the piston is thereby eliminated and a longer working stroke from a position 17 of the crank-pin to a position 18 may be utilized. With suitable dimensions the deviation of the rod 3 from a straight line is so small that it may be rigidly connected to the piston. The guide member 11 may be formed as a piston working in a cylinder 13, in which case it can be utilized as an oil pump.
Patent GB-210052-A (GB)
Title: Improvements in and relating to devices for completely using up articles, which consume away as they are used
IPC: C11C5/00
Filed: 1923-12-07
Abstract: 210,052. Bercovici, M. Jan. 20, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Pencils, leads, crayons, and chalks, and similar articles that become shorter in use, are made at opposite ends with a projection t and a corresponding recess u, or with toothed members, or are otherwise, shaped so that an inconveniently short piece w of wax &c. may be joined to an unused one v. The abutting ends may be tapered to ensure a neat joint.