baber/WOPTO huggingface dataset:
Patent GB-1498262-A (GB)
Title: Active-gated television automatic range sweep technique
IPC: G01S17/89
Filed: 1975-01-24
Abstract: 1498262 Television; optical range finding BALL BROS RESEARCH CORP 24 Jan 1975 [4 Feb 1974] 3099/75 Headings H4F and H4D The Specification describes an actively illuminated low-light level television system which uses the automatic range sweep method as described in Application No. 3104/75 wherein the amplified light image is detected by a television camera and displayed on a monitor and wherein the timing of and between the illuminator pulse and gated light amplifier (image intensifier) pulse is automatically adjusted in synchronism with the horizontal and vertical drive signals of television camera 18 (see Fig. 1). Illuminator pulses 36 are generated during each horizontal sweep, but may, when illuminating a distant range increment, be generated only every second or third line scan to allow for the increased time of travel of the received pulse. Image intensifier gate pulses 34 are generated at the required time delay for each range increment such that they are always in synchronism with horizontal blanking pulses 32. A complete sweep is effected during a field (or frame for a non-interlaced version). The operation of timing circuitry 40 is identical to that described in the above mentioned specification, except in the following features. At the beginning of each field, the preset initial range is loaded into up counter 50 from store 48. At the beginning of each line, down counter 56 is loaded with a number corresponding to the number of range increments in the line time. Master clock 42 controls counter 56. When the count in both counters is equal, comparator 58 enables the illuminator 10 to produce a pulse 36. Counter 56 continues to count down to zero, and the image intensifier 16 is enabled when zero is reached. A range increment may be skipped and a specially coded binary number may be loaded at the respective memory location of memory 46. For view a particular range, e.g., three times, down counter 54 would not provide an output through OR gate 60 to up counter 50 until it had counted down three lines; at this point a pulse would trigger up counter 50 to count up to the next range of interest. Increasing compensatory illumination for increasing range to compensate for reduction in received brightness at long range may therefore be provided.
Patent GB-913210-A (GB)
Title: Improvements in or relating to electronic tubes
IPC: H01J21/02
Filed: 1959-01-29
Abstract: 913,210. Thermionic valves. VAKUTRONIK VEB. Jan. 29, 1959 [Sept. 4, 1958], No. 3230/59. Class 39 (1). An electron tube, e.g. an electrometer, comprises an envelope evacuated to a pressure not higher than 10<SP>-6</SP> Tom, and contains an anode 16 disposed between a control electrode 18 and a cathode 14. The control electrode has a surface of high work function, i.e. equal to or greater than that of gold, and is preferably constructed and arranged for optimum heat dissipation and mounted on quartz struts 19. As shown, the electrodes are closely spaced in order to reduce ionization through cosmic or radio-active ambient radiation. The external insulating parts are coated with a highly-insulating water-repelling layer of low inherent conductivity and the internal insulating parts are protected from deposits of conductive substances. The electron-receiving electrodes are operated at voltages below the ionization and exciting potentials of the residual gases and the valve is screened from external radiation, a drying agent being provided in screen 30. A space-charge grid may be incorporated between the cathode and control grid by means of which positive ions are kept away from the control grid, the amplifying properties of the valve being improved due to the formation of the virtual cathode.
Patent GB-553044-A (GB)
Title: Improvements relating to the manufacture of rollers for haulage systems
IPC: B22C9/06
Filed: 1942-03-12
Abstract: 553,044. Casting composite rollers. HENDERSON, D. M. March 12, 1942, No. 3293. [Class 83 (i)] Moulds; cores.-An iron roller for rope haulage systems is made by casting in an iron mould 1 having a mild steel spindle 13, embedded in a sand core 15, arranged therein. The core has passages 17, Fig. 4, to form the spokes of the roller and a passage 16 through which the molten iron is poured when the mould has been placed on end. Casting processes.-Removable pieces 9a are withdrawn, after pouring, to allow axial shrinkage and the casting may be removed from the mould directly it has set, the core being broken away afterwards.
Patent GB-986789-A (GB)
Title: Multi-speed induction type motor
Inventor: BRAMMERLO ALLEN ALBERT
IPC: H02K17/06
Filed: 1964-01-25
Abstract: 986,789. Pole - charging induction motors. GENERAL ELECTRIC CO. Jan. 25, 1964, No. 3317/64. Heading H2A. In a resistance split-phase, change-pole induction motor having separate main windings for each pole-number, one of the polewindings of one pole-number is also used during operation at the other pole-number and lies in the same slots as the corresponding pole-winding of that other polenumber. Thus, coils 51, 52, 53 forming pole 51 in four-pole operation, is energized in series with six-pole winding A-F when this is in use, and its coils 61, 62, 63, 64 lie in substantially the same slots as those of six-pole coil A. Since coil A is thus assisted it is of fewer turns than the other six-pole coils C and E. As shown in Fig. 1 (not shown), the depth of the stator yoke section is related to the four-pole flux being greatest between the poles, while the cross-sections of the teeth are greatest near the pole-centres in six-pole operation. Other polenumbers are possible.
Patent GB-1274742-A (GB)
Title: Improvements in and relating to poultry carcase cutting machinery
Inventor: HARVEY PETER DEREK
IPC: A22C21/00
Filed: 1969-01-21
Abstract: 1,274,742. Cutting poultry carcases. ROSS POULTRY Ltd. 7 Jan., 1970 [21 Jan., 1969], No. 3344/69. Heading A2U. Poultry carcases are halved by a machine comprising, in one embodiment, an endless bandsaw 1, a motor-driven drum 15 divided to admit the saw and having two rows of spikes 16 to engage the carcase 11 on either side of the backbone to feed the carcase to the saw, and means for supporting and positioning the carcase relatively to the saw. The latter means comprises a stainless-steel feed bar 12 which passes through the carcase and has a pair of vanes 13 spaced to accommodate the neck portion of the carcase, a freerunning V-roller 10 of nylon &c to receive the breast bone, and a leg-supporting plate 7 mounted on a pedestal 9. A carcase is fed along the bar 12 by an operator applying pressure to the legs 22 which pass on either side of the plate 7 which is tapered towards the operator. A plate 23 rotated by an electric motor 24 co-operates with a stationary guide 25 to deliver the halved carcases to a container &c. In a modification, the band saw is replaced by a pair of rotary blades and the carcase halves are delivered down a chute. The blades, in the form of discs rotating in opposite directions in a common plane, enter a slot in the feed bar 12.
Patent GB-1399448-A (GB)
Title: Suspension filing system support means
IPC: B42F15/00
Filed: 1972-05-01
Abstract: 1399448 Suspension filing SWINGLINE Inc 1 May 1972 [7 May 1971] 3398/75 Divided out of 1395411 Heading B6E A filing folder suspension device as described in Specification 1,399,447 has the claims directed to the constructional features of the first and second suspension members viz cross-sectional configuration.
Patent GB-644701-A (GB)
Title: Improvements in or relating to means for supplying combustible mixture to two-strokeinternal combustion engines
IPC: F01L7/00
Filed: 1945-10-26
Abstract: 644,701. Valves. RUDAWSKI, T. Oct. 26, 1945. No. 3432/49. Divided out of 618,238. [Classes 7(ii) and 7(vi)] In a two-stroke engine a slide valve 4 reciprocated by a pair of bell-crank levers 7 controls the admission of combustible mixture from a carburetter 2 into a feed chamber, comprising either the crankcase or the space below the piston, from which the mixture is forced into the cylinder on the down-stroke. A member 1, to which the carburetter 2 is attached, is spaced from the crankcase by a ring 13 to provide a recess for the valve 4, and the bell-crank levers 7 are pivoted at 6 in recesses 5 in the crankcase wall and operated by eccentric grooves 11 on flywheel discs 12 on the crankshaft. The member 1 may be attached to the lower end of the cylinder, particularly in the case of engines where the lower end of the cylinder is closed and forms the pump space. Specification 618,238 is referred to.
Patent GB-747754-A (GB)
Title: Improvements in and relating to yarn winding machines
IPC: B65H54/52
Filed: 1954-02-05
Abstract: 747,754. Winding yarn. CELANESE CORPORATION OF AMERICA. Feb. 5, 1954 [Feb. 5, 1953], No. 3443/54. Class 120 (2). A yarn winding machine comprises a rotatable mandrel 16 which may be of the kind set forth in Specification 746,693, upon which the yarn package 151, 15<SP>11</SP> is wound, a drive roll 14 for driving the package by frictional contact therewith, damping mechanism, preferably of tne hydraulic kind, operatively connected to the mandrel for damping tne transverse motion thereof, the package being movable from the winding position to a doffing position where it is out of contact with the roll 14, means being provided for reducing the damping action during a part of this movement. The mandrel 16 is carried by an arm 24 furnished with a handle 28, the arm pivoting with a shaft 38 to which is connected a vane 56 moving in a cylindrical chamber 51 and furnished with a spring-loaded valve 62, the chamber being divided by a plate 57 provided with a reliefvalve 61. The chamber is relieved at 59 to allow oil to flow more quickly past the end of the vane 56 as the arm 24 is moved from the winding position 24<SP>11</SP> towards the doffing position 24<SP>111</SP> (56<SP>11</SP>). Just before the limit stops 32, 33 engage, stronger damping is again introduced. A brush 19 cleans the roll 14.
Patent GB-421631-A (GB)
Title: Improvements in and relating to the manufacture of fruit-juice beverages
IPC: A23L2/54
Filed: 1934-02-02
Abstract: Mixed drinks consisting of fruit juices and carbonated water are obtained by first subjecting a fruit juice or fruit juice mixture to a vacuum at a temperature between about 28 and 35 DEG  C., thus removing the volatile odoriferous essential oils, and then adding a flavouring containing no ethereal oil, with or without sugar.  The fruit juice or fruit juice mixture may be preliminarily saturated with carbon dioxide, and then mixed with aerated water, or sterilized water may be added to the fruit juice and the mixture carbonated. Suitable non-volatile flavourings are ginger and vermouth.  Examples are given, describing the production of carbonated fruit juice beverages from apple, pear, grape, lemon, orange, and pineapple juice flavoured with ginger.
Patent GB-844326-A (GB)
Title: Improvements in or relating to processes for the recovery of ammonia from coke oven gas
IPC: C01B25/28
Filed: 1958-02-03
Abstract: Coke oven gas enters first saturator A of a pair of saturators of the type described in Specification 669,425 at 23, and flows round member 27 through absorber section X where it is sprayed, through uniformly distributed liquid sprays 31, with solution saturated with (NH4)2 HPO4 and containing free H3PO4\t to maintain pH 6.0-7.0, so that NH3 is absorbed and the solution becomes supersaturated with diammonium phosphate.  The gas passes up riser 29 and along horizontal passage (see 33 on saturator B) entering mist eliminator Y tangentially and flowing out through 28 to saturator B. (NH4)2HPO4 solution collects at 43 sealing absorber section X from mist eliminator Y and is maintained at the necessary level by overflow 73.  The liquid from 73 passes to tar skimmer 75, where H3PO4 is added from 79, and is returned via tank 84 and pump 83 to spray 85.  The (NH4)2HPO4 solution flows from 43 through 45 to crystallizer Z, where flow through orifice 51 and slots 53 causes upward flow of solution at uniform rate, and (NH4)2HPO4 is deposited on the crystals already <PICT:0844326/III/1> present.  Crystals are removed through suction heads 70 and mother liquor is withdrawn through 49, and pump 50 for return to sprays 31.  The gases flowing into saturator B, which is identical with A, are contacted with a solution containing free H3PO4 to maintain pH 3.5 to 5.5 which is unsaturated with respect to ammonium phosphate.  85-95% of the make-up acid is added to A and 5-15% to B while water is added at 76b as necessary.  The solution withdrawn through overflow 73b is returned partly to sprays 85b and partly to saturator A through pipe 87.
Patent GB-325977-A (GB)
Title: Improvements in or relating to railway switch points
IPC: B61L5/00
Filed: 1929-02-01
Abstract: 325,977. Williams, Ltd., H., and Williams, O. R. Feb. 1, 1929. Point-tongues, mounting of.-Point tongues 4 are mounted on pulleys or rollers so that they bear on suitably-shaped chairs only when home, or nearly home, and without tilting, rocking or lifting the slide. The chairs 2 have a surface 7 sloping at 7a away from the tongue. The flexible stretcher-bar 5 rests on travelling rollers 10 carried on supports 11 having lugs 16 adjustably mounted on screwed spindles 13 secured to the sleepers 9. The spindles 12 of the rollers may be carried by ledges within the support or on the. upper edges of the support, which serves as a lubricant-container.
Patent GB-595299-A (GB)
Title: Improvements relating to the arrangement and operation of control surfaces of aircraft
IPC: B64C9/04
Filed: 1944-02-25
Abstract: 595,299. Controlling aircraft. ARM. STRONG WHITWORTH AIRCRAFT, Ltd.. Sir W. G., and WATSON, H. R. Feb. 25, 1944, No. 3505. [Class 4] In order to minimise the effect on the pilot's control member of variations in the angle of incidence due to air currents, &c., a control surface carrying a tab is arranged in combination with a flap which is free to respond to changes in incidence and which carries a " geared tab to accentuate its response to such changes, the flap being connected to actuate a tab on the control surface as an incidence balance tab, the connection also serving to render the latter tab a " geared " tab, at constant angle of incidence, giving servo operation of the control surface when movement thereof is initiated by the pilot. The embodiment illustrated shows the invention as applied to a tailless aircraft. The elevator or other main control surface 12, operable by a link 23, carries a tab 13 which is connected by a link 20 to a short flap 14, also provided with a tab 15 operable through a link 17 having its end connected to a normally fixed member 18 on the wing. An increase of positive incidence results in the flap 14 being moved upwardly, its movement being accentuated by the downward movement of the tab 15 due to its connection to the link 17, with consequent upward movement of the tab 13 resulting in the main control surface being held against the upward lift due to increased incidence. Movement of the control link 23 enables the tab 13 to function as a balance tab, while trimming may be effected by adjustment of the member 18. The linkage may be such that the main control surf'ace moves downwardly against the wind as the angle of incidence increases.
Patent GB-124702-A (GB)
Title: Improvements in connection with the Manufacture, or Production, of Acetaldehyde.
Filed: 1918-04-25
Abstract: 124,702. Crosfield & Sons, J., and Hilditch, T. P. April 25, 1918. Acetaldehyde.-In the production of acetaldehyde by passing acetylene into acid solutions of mercuric salts, the mercury sludge formed in the process is revivefied by adding to the reaction liquid a small quantity of manganic or permanganic acid or a salt thereof, and agitating the mixture by passage of gas or by mechanical means; the reviveneation is repeated until the solution ceases to be an effective absorbent. The reaction liquid should contain 0.5 to 1.5 per cent. of mercuric oxide, and the apparatus should be free from metallic parts; the lower part of the apparatus should contain baffles to break up the gas current. An example is given of the use of potassium permanganate.
Patent GB-456242-A (GB)
Title: Improvements in and relating to processes for washing animal fibres
IPC: C11D1/28
Filed: 1936-02-05
Abstract: Animal fibres are washed in a solution having a pH value between 7 and 8 of a product obtained by treating glycerides of saturated fatty acids with one to three times their weight of a sulphonating agent and neutralizing.  The sulphonation of coconut oil and tallow fats is mentioned.
Patent GB-346077-A (GB)
Title: Improvements in or relating to brake operating mechanism for vehicles
IPC: B60T13/50
Filed: 1930-02-03
Abstract: 346,077. Fluid - pressure brakes. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 3, 1930, No. 3568. Convention date, Feb. 2, 1929. Addition to 336,392, [Class 103 (i), Brakes &c.]. [Class 103 (i).] In apparatus as described in the parent Specification in order to prevent further brake application if applied for a long period on a lightly-loaded vehicle a spring-closed valve i is provided to close the orifice g of the reservoir f when the rise in the pressure in the pipe d releases a piston m. A cock o is provided to connect the pipe c directly to atmosphere for braking loaded vehicles. The spring h of the valve i may be provided with an adjustable stop or abutment.
Patent GB-1372482-A (GB)
Title: Gear pump
IPC: F04C2/08
Filed: 1972-01-26
Abstract: 1372482 Rotary positive-displacement pumps SUNDSTRAND CORP 26 Jan 1972 [27 Jan 1971] 3570/72 Heading F1F The subject-matter of this Specification is substantially the same as that described in Specification 1372481, but the claims are concerned with an hydraulic gear-pump with a pair of gearwheels and a passage through which fluid trapped between the meshing gear teeth is directed to first the bearings of one of the gear-wheels, thence to the bearings of the other gear-wheels and finally to the inlet of the pump. The plates abutting the gearwheels are described in greater detail in said Specification.
Patent GB-453421-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/00
Filed: 1935-02-04
Abstract: 453,421. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Feb. 4, 1935, No. 3611. Convention date, Feb. 2, 1934. [Class 39 (i)] In thermionic valves in which electrons from an emissive cathode 1 to a non-emissive cold anode 3 are controlled solely electrostatically by an interposed foraminated grid 2, the cathode is more highly emissive over those portions directly opposite the apertures in the grid than over other portions 4 opposite solid parts of the grid. Electron beams passing through the grid apertures are formed electron-optically and current flow to the grid, even at positive grid voltages, is avoided so that the grid can be operated at a steep part of the characteristic and without bias. Several grids may be mounted with apertures opposite so that current to space-charge and screen-grids may be avoided. The cathode may be directly or indirectly heated. The cathode parts from which electrons, if emitted, would flow to the grid 2 may be made non- emissive by masks 4 such as coverings of zirconium oxide or may be at too low a temperature to emit or may be depressed so that space - charges hinder emission. In modifications, emissive oxide is applied to the cathode in a pattern corresponding to the grid apertures. In activating an oxide coated cathode by forming metallic barium, the grid is connected to the cathode or is maintained negative and the anode is raised to a high positive potential, the effect being that the oxide is not converted to barium in the shadow of the grid wires so that the cathode is not made emissive at these parts. In other modifications, apertured plate grids are mounted at each side of a cathode structure consisting of separate emissive cathodes which are mounted opposite the apertures and which are joined by a non-emissive cathode body. The separate cathodes may have separate heaters in series or parallel. In another modification, Fig. 6a, the emissive cathode 11 is opposite the single aperture in an annular grid or control electrode 15 and is surrounded by a coplanar non-emissive annulus 13, extending to an annular seal 19. Grids and anodes 14.. 17 may be mounted at each side of the cathode for operation in parallel or push-pull and may comprise silver or graphite deposits on the glass envelope 18. Specification 232,980, [Class 39 (i)], is referred to.
Patent GB-138179-A (GB)
Title: Improvements in the transmission of power
IPC: F16H1/22
Filed: 1919-02-14
Abstract: 138,179. Thomas, G. H., Wilkinson, G. S., and West, E. C. Feb. 14, 1919. Motorpower plant.-In an apparatus of the kind described in Specification 137,642, spur wheels and pinions are substituted for helical wheels and pinions, the latter being connected to their engine shafts by helical feathers c<1>. The lever E acts to slide either of the pinions D<1>, D<2> out of engagement if the corresponding engine ceases to develop the required power. As in the previous case, adjustable spring resistances and a partition J in the casing are provided.
Patent GB-541648-A (GB)
Title: Improvements in and relating to lock nuts and the like
IPC: F16B39/286
Filed: 1940-02-29
Abstract: 541,648. Self-locking nuts. WESTLEY, C. (Boots Aircraft Nut Corporation). Feb. 29, 1940, No. 3807. [Class 89 (i)] [Also in Group XXII] A self-locking nut of tubular form has two threaded sections 1, 2, Fig. 1, connected by resilient members 6a, 7a the threads in the two sections being out of register. The base of the nut is formed by a flange bearing at 4a and dished at 4 to be resilient. Upturned lugs 5 provide for spanner engagement. In a modification an enlarged zone 16, Fig. 4, is made resilient by slots 17. Making nuts. The nut shown in Fig. 1 is made from a stamped blank, Fig. 3, by cross drilling a hole and countersinking both sides at 8. After tapping axial compression bears out the strips remaining at the sides of the hub to form the parts 7a. The lugs 5 are afterwards turned up. The nut of Fig. 4 has the slots 17 cut by two sets of opposed cutters or saws at right angles. If the nuts be made from hexagonal bar stock the chamfered portion is formed by machining, the slots are cut, and the blank compressed axially to effect the relative displacement of the threaded portions. Specification 510,829 is referred to.
Patent GB-663164-A (GB)
Title: Improved process for the polymerisation of polymerisable compounds
IPC: C08F2/24
Filed: 1948-02-10
Abstract: In the polymerization of an olefinic liquid, e.g. styrene, methyl acrylate, vinyl esters, alkyl methacrylates or a mixture such as styrene and methyl acrylate in an agitated aqueous medium containing an emulsifying agent and catalyst, the monomer is gradually added at such a rate that it becomes solubilized without the formation of a separate phase.  A suitable temperature is maintained throughout the addition.  The correct rate of addition is determined by periodical sampling or by dyeing the compound, e.g. with Serisol Brilliant Red, to assist visual observation. Emulsifying agents such as soaps, sulphated higher aliphatic hydrocarbons, castor oil or fatty alcohols, a sodium higher alkyl sulphate, or mixtures thereof with triethanolamine as a buffer, and catalysts such as hydrogen peroxide with an alkali bisulphite or hydroquinone may be used, and air may be excluded by carbon dioxide or nitrogen.  Specification 410,132 and U.S.A. Specification 2,140,048 are referred to.