baber/WOPTO huggingface dataset:
Patent GB-553188-A (GB)
Title: Improvements in vacuum tubes and method of manufacture thereof
IPC: H01J19/42
Filed: 1942-01-05
Abstract: 553,188. Thermionic valves. HAZELTINE CORPORATION. Jan. 5, 1942, No. 151. Convention date, March 5, 1941. [Class 39 (i)] The grid of a vacuum tube is supported solely by the cathode. In one form an indirectly-heated cathode 17, Fig. 2, is provided with longitudinal grooves into which fit semicircular insulators 29 engaging the support rods 28 of a closely-wound helical grid 25. Especially with valves of high transconductance, this enables the control grid and cathode to be formed into a unit before assembly and avoids damage to the cathode which might result in passing a cathode into a closely-fitting already mounted grid. The insulators 29 may be assembled on, or formed integrally with, either the cathode or the control grid before the insertion of the cathode into the grid, or the insulators may be slid into place afterwards. The cathode and grid may be circular, elliptical or rectangular cylinders. In another form, the grid supports rods 28 fit into insulating buttons 35, Fig. 6, at each end of the cathode, which is indented at 37 to receive the buttons. Recesses 38 in the buttons prevent the evaporation of continuous conductive films from the cathode. The insulating bridge 15 supports the cathode, screen and suppressor grids and the anode and is secured to a metal shield engaging a metal envelope.
Patent GB-1187574-A (GB)
Title: Process for Preparing Degraded polyethylene
Inventor: FISH JOHN J
IPC: C08F8/50
Filed: 1969-01-01
Abstract: 1,187,574. Treating polyethylene. WESTERN PETROCHEMICAL CORP. 1 Jan., 1969, No. 152/69. Heading C3P. [Also in Division C5] Polyethylene is degraded by heating in the presence of a peroxygen compound from room temperature to a temperature of at least 760‹ F. in not more than six minutes. Specified peroxygen compounds are hydrogen peroxide, sodium percarbonate, zinc peroxide, perborates, cadmium peroxide, sodium persulphate, cumene hydroperoxide, di-t.-butyl peroxide and benzoyl peroxide. The peroxygen compound may be used in the form of a solution and the process repeated to further degrade the products. The products may be blended with paraffin wax and/or formed into pastes with mineral spirits to produce polishes, coating materials and inks, or may be incorporated in paper pulp for glossy papers. In examples, polyethylene is degraded by heating with (1 and 3) hydrogen peroxide and (2) sodium percarbonate, and the products made into pastes with mineral spirits, with and without paraffin wax.
Patent GB-730961-A (GB)
Title: Improved process for preparing sodium carboxymethylcellulose low in salt content
IPC: C08B11/20
Filed: 1952-01-03
Abstract: Water-soluble sodium salts are removed from crude sodium carboxymethyl-cellulose by mixing it with a mixture of water and an organic dipolar liquid miscible with water in all proportions, and expressing liquid from the mixture in such a way that the difference between the pressure of the liquid in the mixture and that of the expressed liquid is at least 3 atmospheres, e.g. 6-7 atmospheres. The complete mixture contains 40-60 per cent by weight of the dipolar liquid, based on the total amount of liquid present.  The dipolar liquid may be methanol, ethanol or acetone. In the example, crude sodium carboxymethyl cellulose, produced by the reaction of alkali cellulose with sodium chloroacetate and containing about 38 per cent of water, is neutralized with acetic acid and then mixed with three times its weight of an aqueous solution of ethanol containing 62 per cent of ethanol by weight. Liquid is expressed from the mixture by passing it through a screw press of the type comprising a conveyer screw rotating in a cylindrical or conical chamber having perforated walls, the mixture being subjected in the press to a pressure of 7 atmospheres.  The expressed mass is again mixed with three times its weight of an aqueous solution of ethanol (55 per cent by weight of ethanol) and pressed out at 7 atmospheres pressure as before.  Before the treatment in a screw press, the crude sodium carboxymethyl cellulose may be washed with 10-15 times its weight of a mixture of water and dipolar liquid and then vacuum filtered or centrifuged, to reduce the liquid content of the mass to not more than 200 per cent by weight of the dry material.
Patent GB-746909-A (GB)
Title: Improvements in or relating to butterfly valves
IPC: F16K1/228
Filed: 1954-01-06
Abstract: 746,909. Valve closure members. WALDENMAIER, H, W., [trading as ERHARD, J., [Firm of]]. Jan. 6, 1954 [Jan. 13, 1953], No. 322/54. Addition to 720,835. Class 135. A butterfly valve-disc 1 carries a peripheral sealing-ring 2 mounted by screws 5 and resilient elements 6, e.g. rubber buffers, whereby it may be urged by pressure of the controlled fluid, in the valve-closed position, into engagement with a fixed sealing ring 3<SP>1</SP> in the valve housing. For controlling fluid flow in either direction the disc may be rotatable through 180 degrees and the housing provided with a second sealing ring 3<SP>11</SP>. A rubber &c. sealing ring 7 prevents leakage between the disc and the ring 2. The spindle 4 is offset in relation to the sealing surface of the ring 2 so that that surface is uninterrupted. The sealing surface of the ring 2 and/or that of the rings 31, 3<SP>11</SP> may be of rubber.
Patent GB-214579-A (GB)
Title: Improved process for the electro-osmotic purification of glue or gelatin
IPC: C09H3/02
Filed: 1924-01-05
Abstract: 214,579. Electro-Osmose Akt.-Ges. (Graf Schwerin Ges.). April 18, 1923, [Convention date]. Electric endosmose; diaphragms. - Glue or gelatine is purified by electric endosmose using an anode diaphragm of wool fabric impregnated with chromated gelatine and a cathode diaphragm of parchment. The solution for impregnating the anode diaphragm is prepared by dissolving about 30 gms. of gelatine in 170 c.c. of water at about 50‹ C., then adding 3 gms. of finelypowdered potassium bichromate and, when this is dissolved, adding 30 c.c. of glycerine. A closely-woven but thick woollen fabric is stretched on a frame and coated on both sides with a thin layer of the solution and exposed to sunlight until it turns from yellowish-brown to green. The coating and exposure to light is carried out three times.
Patent GB-450150-A (GB)
Title: Improvements in or relating to radio receiving systems
IPC: H04B1/26
Filed: 1935-01-05
Abstract: 450,150. Valve circuits for wireless reception. PADDLE, L. H., 6, Graham Road, Purley, Surrey. Jan. 5, 1935, No. 412. [Class 40 (v)] A method of high frequency reception comprises mixing the signal with locally generated oscillations, extracting from the mixture oscillations of the local frequency now modulated by the audio frequency signal, and demodulating the local frequency oscillations. The mixing stage may be a gridleak rectifier, the local oscillations being applied to the anode circuit. A filter may be inserted between the mixing stage and demodulator to pass only oscillations of the local frequency. A limiting stage may also be provided to limit the amplitude of the local frequency thereby increasing modulation depth. Fig. 4 shows the application to a super-regenerative receiver comprising a reacting rectifier V3, the quenching frequency being generated by the triode oscillator OSC in the anode circuit of V3. The grid of V3 is connected over a filter 15, 19, tuned to the quenching frequency, to a further stage V4. In this case the quenching frequency is the frequency passed by the filter and subsequently demodulated. Fig. 5 shows a receiver for use on wavelengths of the order of 4 metres, in which the dipole 27 is coupled to the anode circuits of a pair of triodes V5, V6, coupled as described in Specification 450,967, and tending to oscillate at the frequency of tuned circuits 25, 26 in grid and anode circuits respectively, oscillation being controlled by resistance 23. The output at this oscillation quenching frequency, modulated by the signal, may be taken from couplings at 28 or 29. With this arrangement, a separate local oscillator may be employed in the anode circuit 26 of the valves V5, V6 ; and a subsequent valve may be provided, connected exactly as V4 of Fig. 4, (Fig. 6 not shown). Specification 285,108, [Class 40 (v)], is referred to.
Patent GB-112784-A (GB)
Title: Improvements in Periscopes.
Inventor: BECK CONRAD
IPC: G02B23/08
Filed: 1916-01-10
Abstract: 112,784. Beck, C. Jan. 10, 1916. Periscopes.-The telescope of a periscope having an upper reflector a supported by a thin connexion c is so constructed that a conjugate image of the reflector is formed between the object glass d and the eye-piece m, and a diaphragm f is placed at the position of this image to cut off the light which does not proceed from the reflector. A positive lens c is provided in or close to the focal plane of the object glass to form the image of the reflector, and a projecting lens system g forms a secondary image which is viewed by the eye-piece m. The connexion c, of metal or wood, is slidable in channel-shaped blocks n containing springs to hold it in any position, its motion being limited by a removable stud p. A clip b on the back of the box which holds the reflector is provided to receive a leaf, twig, or other' natural object to disguise the appearance of the periscope.
Patent GB-931313-A (GB)
Title: Polymerization of conjugated dienes
IPC: C08F136/06
Filed: 1962-01-05
Abstract: Polybutadiene of high cis-1,4-addition content is made by polymerizing 1,3-butadiene in the presence of a small amount of isoprene not exceeding 5 parts by weight per 100 parts by weight of butadiene, and a catalyst formed by admixing (a) an organometallic compound of the formula RnM where R is a hydrocarbon radical of 1 to 20 carbon atoms, M is aluminium, magnesium, or lead, and n is equal to the valency of the metal, (b) titanium tetrachloride, and (c) a component selected from (1) titanium tetraiodide, and when M is Al or Mg, (2) iodine.  The polymerization is generally effected in the presence of an inert hydrocarbon solvent or diluent.  The polymer may be recovered by conventional methods, e.g. alcohol and water treatments.  The polymerization may be effected continuously.  The exemplified catalyst system is triisobutylaluminium, titanium tetrachloride, and titanium tetraiodide.
Patent GB-544170-A (GB)
Title: Improvements in and relating to carbon pile electric regulators
IPC: H02P9/22
Filed: 1941-01-14
Abstract: 544,170. Electric regulators; electromagnets. NEWTON, F. Jan. 14, 1941, Nos. 519 and 9528 Addition to 514,482. [Classes 35 and 38 (iv)] In a carbon pile automatic regulator having a shallow V-shaped spring in opposition to the pull of the control electromagnet so that the spring substantially balances the pull of the electromagnet for all working positions of the armature as in the parent specification, a double-V spring is employed with the same effect. This spring 18, 19, as shown in Fig. 6, may be bent up from a single spring strip with an extension 21 for attaching it to a fixed post 15. One of the vertices of the spring bears against an adjustable stop 16 and the other against an extension 14, Fig. 4, of the armature 3 which, instead of having a rectilinear movement as in the parent Specification, hinges about its lower comer and is constrained by the rounded head 9 of a bolt fixed to the magnet frame. The armature carries the carbon pile 12 by means of a bolt passing freely through the armature and secured to a fixed part 5 of the magnet structure. When the armature is attracted, the pressure on the pile is relieved. The double spring may be flattened at its vertices, and may be of double-star form. Specification 532,741, is referred to.
Patent GB-445218-A (GB)
Title: An improved device for use in anaesthesia
IPC: A61M16/06
Filed: 1935-01-07
Abstract: 445,218. Anaesthetic apparatus. HUMAN, J. U., 14D, Upper Montagu Street, Bryanston Square, London.. Jan. 7, 1935, No. 524. [Class 81 (ii)] In apparatus for endotracheal administration of anaesthetics comprising a tube or airway insortable into the mouth and throat for admission of air at the same time as anaesthetic vapours administered through a flexible tube inserted through the airway means are provided permitting lateral removal of the anaesthetic tube from the airway whereby the latter may be removed from the throat without disturbing the anaesthetic tube. As shown the air-tube comprises a main straight portion and a curved terminal portion and is divided into two parts a, b, the division may be made in a diametral plane passing symmetrically through the curved portion, or, as shown, in a plane at right angles thereto, the parts of the curved portion then having curved edges or, as shown, straight edges a<4>, b<4>. The upper ends of the parts a, b, have flanges a2, b<2>, provided with lugs a<3>, b<3> one pair of which is extended to lie adjacent to the other pair, the lugs being then locked together by a pin c, attached to the tube by a chain or the like c<1>. The lower ends of the parts have interengaging pins d and holes d<1>. The tube may be made from an aluminium alloy, may be longer than usual for use with all patients, and may be furnished with flattened bite portions. at its upper end. Instead of a plane division the division lines of the tube may be sinuous or of zigzag form. The anaesthetic tube e may have an end obliquely cut or, as shown, of flattened conical form having lateral apertures.
Patent GB-587344-A (GB)
Title: Improvements in or relating to automatic adjusting means for transmission linkages
IPC: G05G1/00
Filed: 1945-01-05
Abstract: 587,344. Clutch-operating mechanism. AUTOMOTIVE PRODUCTS CO., Ltd., and BROCK, W. H. J. Jan. 5, 1945, No. 538. [Classes 80 (ii) and 80 (iii)] [Also in Group XXXIV] Automatic adjusting means for transmission linkages for operating clutches, brakes, and other parts, comprises members 13, 16, connected together by a pair of oppositely acting unidirectional clutches and movable about a common axis, the parts being arranged to allow of automatic relative adjustment of the members 13, 16. As shown, the member 16 is fixed to a shaft 14 and is connected by links 51, 52, to a release pad 48 for a clutch 40, 41, 44. The member 13 is connected by a link 12 to a pedal 10, which, in the clutch-engaged position, is held by a spring 18 against a stop 19. Between the member 13 and the shaft 14 are clutch means comprising sets of balls or rollers 24, 25, carried in cage 23. The latter can move relatively to the member 13 due to a pin-and-slot connection 30, 32. Flats 21 in the member 13 co-operate with the balls 24, 25 and a lug 34 on the cage 23 is engageable with a stop 35 in the clutch engaged position. The member 16 is acted on by a spring 36 weaker than the spring 18. When disengaging the clutch, the pedal 10 is moved clockwise and the balls 24 are jammed between the flats 21 and shaft 14 to move the member 16 and hence the clutch pressure plate against the action of the clutch springs 45. Upon release of the pedal 10 the clutch is re-engaged. Just before the end of this movement the lug 34 engages the abutment 35 so that the balls 24 are moved away from the flats 21 and the shaft 14 is then free to move to take up any play that has developed in the mechanism. The balls or rollers 25, are each carried in a long slot 27 in the cage 23 and acted on by a spring 28. Thus during the final movement of the pedal 10 against the stop 19 the balls 25 are jammed between the shaft 14 and the flats 21 and a small movement is given to the member 16 so that the pad 48 is slightly spaced from the release lever plate 47. When applied to a brake mechanism the usual pulloff springs for the shoes may be provided, but these will be weaker than the spring 36. The engagement of the auxiliary balls 25 during the return movement of the parts thus provides a predetermined clearance between the shoes and the drum.
Patent GB-352902-A (GB)
Title: Improvements in and relating to receiving arrangements and apparatus for picture telegraphy and television
IPC: H04N5/66
Filed: 1930-01-07
Abstract: 352,902. Television. GEFFCKEN, H., 62, Steinstrasse, and RICHTER, H., 3, Wiederitzscherstrasse,. both in Leipsic, Germany. Jan. 7, 1930, No. 645. Convention date, Jan. 7, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 39 (i), 40 (iii), and 40 (v).] A glow discharge lamp for television &c. in which two discharge paths are formed by employing auxiliary electrodes has one path traversed by the controlled discharge while the other path is traversed by an uninfluenced discharge. The electrodes 2, 3, Fig. 1, act as cathode and anode of the controlled discharge and the auxiliary electrode 4 is connected to a source of positive potential through a high resistance 5 so that a weak permanent discharge occurs between electrodes 2, 4. By suitably spacing the electrodes 3, 4, they may be connected to the same battery. The signal currents are fed to the transformer 6, Fig. 1, or may control a valve 7, Fig. 2, in which case the anode 3 is connected to the mid-point of the potentiometer formed by the valve 7 and the resistance 8. The resistance 8 may be omitted (Fig. 3, not shown). The lamp has the main electrodes 2, 3, Fig. 4, in the form of rectangular plates while the U-shaped auxiliary electrode encloses extensions 10 of the electrodes 2, 3. A protective resistance 5 is built into the lamp.
Patent GB-671237-A (GB)
Title: Improvements in or relating to a stationery supply container for writing and like machines
IPC: B41J15/12
Filed: 1950-01-13
Abstract: 671,237. Typewriters &c. ROLLINSON, E. W. (Standard Manifold Co.). Jan. 13, 1950,' No. 907/50. Class 100 (iv). A paper supply container, for zig-zag folded strips of stationery 27 led to a writing machine having a reciprocating carriage, comprises a supporting base pivotally carrying a yoke 11 supporting an open-top box 17 divided into separate compartments for separate packs of stationery. The box 17 may be of aluminium and has a number of removable trays 23 each with a stop 24 rounded at 25. The trays slide in slots in an inner wall of the box 17 so that when it is desired to increase the size of a compartment some trays may be removed. As shown in Fig. 3 the stationery is withdrawn from the top aided by guide rollers 26 each having a compressible trunnion so they may also be removed. The box has a surrounding band 19 having opposed sockets 21 into which pivot screws 16, mounted on the yoke 11, engage. The yoke 11 has a stud 12 removably fitted in a roller bearing on the top of the supporting base shown in the form of a telescopic pedestal 9. When the stationery is to be withdrawn horizontally, Fig. 1, the pivot screws 16 are engaged with other sockets 20 on the box and screws 18 are turned into locking engagement with the box to prevent tilting.
Patent HK-11191-A (HK)
Title: Analogs of mevalolactone and derivatives thereof,processes for their production,pharmaceutical compositions containing them and their use as pharmaceuticals
Inventor: KATHAWALA FAIZULLA GULAMHUSEIN
IPC: A61K31/405
Filed: 1991-02-06
Abstract: Compounds of formula I <CHEM> and the other is primary or secondary C1-6alkyl, C3-6cycloalkyl or phenyl-(CH2)m-,  wherein R4 is hydrogen, C1-4alkyl, C1-4alkoxy, (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R5 is hydrogen, C1-3alkyl, C1-3alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy,  R5a is hydrogen C1-2alkyl, C1-2alkoxy, fluoro or chloro, and  m is 1, 2 or 3, with the provisos that both R5 and R5a must be hydrogen when R4 is hydrogen, R5a must be hydrogen when R5 is hydrogen, not more than one of R4 and R5 is trifluoromethyl, not more than one of R4 and R5 is phenoxy and not more than one of R4 and R5 is benzyloxy, R2 is hydrogen, C1-4alkyl, C3-6cycloalkyl, C1-4alkoxy, (except t-butoxy), trofluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R3 is hydrogen, C1-3alkyl, C1-3alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, with the provisos that R3 must be hydrogen when R2 is hydrogen, not more than one of R2 and R3 is trifluoromethyl, not more than one of R2 and R3 is phenoxy, and not more than one of R2 and R3 is benzyloxy,  X is -(CH2n- or -CH=CH- in (n = 0, 1, 2 or 3), <CHEM> wherein R6 is hydrogen or C1-3alkyl in free acid form or in the form of a physiologically hydrolysable and acceptable ester or a lactone thereof or in salt form. These compounds are indicated for use as pharmaceuticals particularly for inhibiting cholesterol biosynthesis and treating atherosclesoris.
Patent JP-S58112732-A (JP)
Inventor: HIRAMATSU KAZUO
IPC: B32B15/08
Filed: 1981-12-26
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S59125319-A (JP)
Title: Fuel feeder
Inventor: HIRATA HIROSHI
IPC: F23K5/08
Filed: 1983-01-07
Abstract: PURPOSE:To enable regeneration of a tar product remover, by a method wherein a flow-in port and a flow-out port, through which a tar product cleansing liquid flows in and out, are formed in a tar product remover mounted on a fuel passage. CONSTITUTION:A fuel injection port 9 and an ejection port 10 are formed in a device container 8 of a tar product remover 4, and filters 11 are situated on both end surfaces. A flow-in port 12, a flow-out port 13, through which regenerated cleansing liquid flows in and out, are formed and a device container 8 is filled with a tar product removing material 14. The tar product removing material 14 consists of one component or mainly of one component of metallic oxide, such as alumina, silica, magnesia, ferrite, a basic substance, such as calcium hydroxide, an absorbent, such as zeolite, and a hydrolizing agent.
Patent JP-S62158572-A (JP)
Title: Deformation preventing method for attachment on surface of stainless steel pipe at welding time
Inventor: YAMAGUCHI TSUNEO
IPC: B23K9/032
Filed: 1986-01-08
Abstract: PURPOSE:To disperse and absorb welding heat, and to prevent a deformation to a pipe inside diameter of a base pipe, and a pipe axis from springing up, by putting in water to a weld zone of an attachment, in an inclined stainless steel pipe. CONSTITUTION:After executing initial layer welding for bringing a branch pipe 6 to butt welding to a stainless steel pipe 1, it is sealed by a polyethylene cap 3 and a seal tape 4. Thereafter, a weld surface is placed as the upper face, a stock 10 is laid on the lower part of one end of its steel pipe 1, and the steel pipe 1, and the steel pipe 1 is inclined. From one hose 5, water 2 is put in upto the upper part of a weld zone, into the steel pipe 1. When welding of the branch pipe 6 is executed in said state, the water 2 circulates, and heat of the weld zone is dispersed and absorbed. As a result, by a drop of a shrinkage force, the deformation quality can be expected, and the work efficiency can be improved.
Patent JP-S59126059-A (JP)
Title: Fuel oil supplying device for marine engine
Inventor: TAKUMA NOBUTOSHI
IPC: F02M37/00
Filed: 1983-01-07
Abstract: PURPOSE:To prevent flashing or the like by a method wherein a fuel oil cooler, exchanging the heat of excess fuel oil from a fuel oil pump and the same of supplying fuel oil from an air separator, is provided to cool the excess fuel oil and heat the supplying fuel oil. CONSTITUTION:The fuel oil, sucked from the air separator 2 by a fuel oil booster pump 4, is heated by a heater 5 so as to have a proper viscosity for fuel injection at the entrance of the main Diesel engine 6 and is delivered to the fuel oil pump 7. Thereafter, the fuel oil is injected into said engine 6 to produce a necessary power but the excess fuel oil 20 returns into the air separator 2 again. In this case, the fuel oil cooler 8, exchanging the heat of the excess fuel oil 20 from the fuel oil pump 7 and the same of the supplying fuel oil 21 from the air separator 2, is provided to cool the excess fuel oil 20 and heat the supplying fuel oil 21. According to this method, the temperature of the returning oil may be decreased even though poor fuel is used and a moisture content in the fuel oil is high.