baber/WOPTO huggingface dataset:
Patent GB-594132-A (GB)
Title: Improvements in or relating to apparatus for determining the phase relationship between two periodically varying electrical quantities
IPC: G01R25/00
Filed: 1944-09-14
Abstract: 594,132. Phase difference measurements. SPERRY GYROSCOPE CO., Inc. Sept. 14, 1944, No. 17608. Convention date, Sept. 6, 1943. [Class 37] Apparatus for determining the phase relationship between two voltages comprises separate means for modulating a portion of each of the voltages whose phase has been shifted through a predetermined angle with a portion of the other voltage whose phase is unshifted, and means responsive to the D.C. components of the two modulated voltages thus produced. One of the two voltages E2 whose phase difference with E1 is to be determined, is applied to the terminals 14 of a channel 11, the other voltage E1 being applied to the terminals 14<1> of a second channel 13. The voltage E2 is applied to a potentiometer 15 from which a portion is passed through the channel 11 and a part is applied to a cross-connecting network 12. The portion passing through the channel 11 is passed to a phase inverter 16, a push-pull amplifier 40 and a balanced modulator 50. This comprises two valves 47, 52 having a phase-shifting network 45 in the common grid circuit. This receives the output 9 of the lower half of the network 12 and retard its phase through 45 degrees. The anodes 49, 54 of the valves 47, 52 are connected in series through coils 59, 60, 61, 70 and the winding of a potentiometer 58, whose movable arm is connected to the winding of a potentiometer 99. The channel 13 is similar to the channel 11. The cross-connecting network 12 includes valves 63, 81, the upper halves of which act as amplifiers for supplying the voltage E2 to the phase-shifting network 45<1> in the channel 13, while the lower halves similarly amplify and supply the voltage E1 to the network 45 in the channel 11. The voltage E2 received by the balanced modulator 50 modulates a part of E1 whose phase has been shifted through - 45 degrees by the network 45. Similarly, the voltage E1 modulates a part of E2 whose phase has been shifted through a like angle by the network 45<1>. The output of the balanced modulator 50 is a direct current flowing in the coils 59, 60, 61, 70, while the output of the modulator 50<1> is a direct current flowing in the coils 59<1>, 60', 61<1>, 70'. The ratio of these two currents is a function of the phase difference between the voltages E1, E2. The two sets of coils 59, 60, 61, 70 and 59<1>, 60<1>, 61', 70<1> are arranged at right angles to one another and cause a magnetic needle to take up a position corresponding to their resultant field, thereby giving an indication of the phase difference. Alternatively, the direct currents may be passed through two movable coils arranged at right angles with each other in a permanent magnetic field.
Patent GB-515947-A (GB)
Title: Improvements in or relating to cathode ray tube arrangements
IPC: H01J29/46
Filed: 1938-06-14
Abstract: 515,947. Television ; thermionic oscilllators. BAIRD TELEVISION, Ltd., and TINGLEY, G. R. June 14, 1938, No. 17613. [Classes 40 (iii) and 40 (v)] A scanning oscillator, for deflecting a cathode-ray beam over an inclined screen, has an additional winding 5 in its grid circuit associated with the main focusing coil 7 so as to maintain the beam in focus at all points on the screen ; the resistance of the winding 5 is so chosen that the wave-form is modified to produce a uniform rate of movement of the beam over the screen. In a modification, the winding 5 may be in parallel with winding 4 (Fig. 2, not shown). Specifications 445,094, 463,896 and 463,972 are referred to.
Patent GB-944051-A (GB)
Title: A lading cover for transport vehicles
IPC: B60J7/08
Filed: 1961-05-15
Abstract: 944,051. Covers for rail or road wagons. UNITED STATES STEEL CORPORATION. May 15, 1961 [May 23, 1960], No. 17614/61. Headings B7B, B7J and B7L. A cover 4, Fig. 1, for covering a load L on the floor of a rail or road which comprises side walls (only one, 6, being shown), slidably supported by ball bearing carriages 18 on a pair of spaced rails 20 carried by the vehicle floor; end walls 10, 12; and a roof 14, 16, including a portion 16 fixed to the side walls and to the end wall 12 and a portion 14 hinged to the fixed portion 16 and also hinged to the top of the end wall 10, the portion 14 and end wall 10 being raisable manually to the positions shown in dotted lines, and counterbalanced at each side by a spring 30. The counterbalance spring 30 is secured at one end to a side wall and at the other end to a clevis 32 adjustably secured (for tensioning the spring) to one end of a lever 26, pivoted between its ends to one side wall subjacent the pivot point of the roof portion 14, the other end of the lever slidably engaging in a guide 28 secured to the side of the roof portion 14. Stops 34 limit the upward movement of the portion 14 which has lifting handles 38, 40. The cover is locked in the closed position by hasp-and-pin devices 42 on the end 10.
Patent GB-561599-A (GB)
Title: Improvements in methods and means for sealing electron discharge tubes
IPC: H01J5/20
Filed: 1942-12-11
Abstract: 561,599. Electron discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Dec. 11, 1942, No. 17653. Convention date, Feb. 6, 1942. [Class 39 (i)] In an electron discharge tube having metallic and vitreous portions, the sealing of the envelope is effected by making a metallic seal between two metallic members 14 and 15 which are sealed by brazing together the outer portion of thin annular disc flanges 24 and 28 projecting therefrom. Buttresses 27 are provided on member 14 to keep the walls 28 and 24 from collapsing under air pressure. These metal portions are sealed to vitreous members 11 and 10 and the envelope may also include a metal anode portion 13. The grid 20 is mounted on arms 21 secured to metal portion 14. The cathode 26 is supported by terminal rods 17 and 19.
Patent GB-393095-A (GB)
Title: Improvements in or relating to a method of and apparatus for closing and sealing bags or like containers
IPC: B65B51/02
Filed: 1932-06-22
Abstract: 393,095. Packing ; closing mouths of bags. BELCHER, D., 600, South 4th Street, Minneapolis, Minnesota, U.S.A. June 22, 1932, No. 17660. [Class 94 (i).] A method of closing and sealing bags or like containers consists in applying gum or other adhesive to a portion of the bag walls, folding said gummed wall portion over the bag body and laterally extending other portions of the bag walls beyond the bag body whereby an opposite wall portion is folded over said first folded wall portion, applying an adhesive to said laterally extending wall portions, and finally folding said laterally extending wall portions against the bag body. Apparatus for performing this method comprises a drum 2 rotatably mounted on a shaft 3 to which are hinged four wall members (not shown, but situated in the plane of the paper) which, with the drum face, form two sides for each of four bag-forming compartments, and which are cam-operated to move towards and from the drum face. The bottoms of the compartments are formed by centring-plates 30, and the other two sides are formed by two plates 26, 27, both of which are cam-operated, but the wall 26 being practically stationary relative to the wall 27. A bag 53 slides down a shoot (not shown) and is received by a bag-compartment, the walls of which are opened for reception. The drum rotates anticlockwisely and as the bag travels towards the cam-operated closing fingers 55 the walls close in around it. Just before the rear wall of the bag is engaged by the fingers 55, Fig. 17, adhesive 92 is applied by a brush (not shown). The fingers, being recessed at their ends as at 55a, then move outwardly and extend side wall portions 98, Fig. 18, spreading gum from the patch 92 to the underside wall portions. Continued rotation of the drum brings the bag under two rotating presser feet 82 having yieldinglysupported gumming elements 101 which apply bands of adhesive 99 to the extended wall portions which rest on the drum face and on an extended portion of a side wall. Folding means 107, 108 then fold down these extended portions on the bag, as shown in Fig. 20. The bags are then carried around, the folded portions being held in position by a flexible element 109, until the bag walls open and they drop on to a conveyer, from which they are pushed laterally by a cam-operated plunger.
Patent GB-151404-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B47/02
Filed: 1919-07-15
Abstract: 151,404. Martineau, F. L. July 15, 1919. Motor power plant. - Relates to internal-combustion engines wherein steam &c. generated by the waste heat of combustion is used expansively at the back of the combustion-engine piston 2. This piston 2 is made hollow and slides in gas-tight engagement both with an outer combustion cylinder 1 and with an inner fixed abutment 3 through which steam is introduced by a valve 9. After the combustion stroke on the side 23 the exhaust gases circulate through a passage 17 in the water jacket 6, which constitutes the steam generator, and which may be provided with additional heating means. Recesses 13 in the wall of the hollow piston 2 allow the steam to exhaust therefrom at the end of the steam stroke.
Patent GB-1418275-A (GB)
Title: Boring head
IPC: B23B29/034
Filed: 1974-04-23
Abstract: 1418275 Boring heads HELLER VERWALTUNGS GmbH Gebr 23 April 1974 [25 April 1973] 17688/74 Heading B3C A boring head comprises a body 11 having bracing strips 12 for centering the head in a bore, an irregular hexagonal insert 18 the sides of which form part of a side of one of two equilateral triangles 19, 21, are rotationally disposed on the other but rotated through an acute angle 22 relative thereto, the plate having main and secondary cutting edges, 24, 23 respectively. As shown the insert is mounted in a recess in a holder 14 which is adjustably fixed in a bore in the body 11. The insert is located in the recess by surfaces 26, 27 which are at the same angle as the front rakes 28 of the main cutting edges. A subsidiary cutting edge 23 extends parallel to the axis 13 and is radially aligned with the bracing strips 13 to form a third bracing surface.
Patent GB-1145382-A (GB)
Title: Superconducting energy transmission line
IPC: H01B12/14
Filed: 1966-04-22
Abstract: 1145382 Super-conducting cables LICENTIA PATENT-VERWALTUNGS GmbH 22 April 1966 [23 April 1965] 17703/66 Headings H1A and A4D In a super-conducting cable super-conductive conductors L immersed in liquid helium He are surrounded by a number of hollow cylindrical envelopes in the form of flexible, extensible and corrugated tubes, for example, made from metal and/or plastics material, which are held apart by spacers of low heat conductivity and which form between them at least one space which is evacuated or filled with liquefied gas. The low heat conductivity spacers, shown in Fig. 3, as shaded triangles, may be in the form of helically wound wires or bands of plastics material of varying cross-section, Fig. 4 (not shown), such that contact between the spacers and the corrugated tube occurs only at spaced points. The spaces between adjacent envelopes may be evacuated as indicated at V 1 , V 2  or filled with a liquefied gas such as nitrogen as indicated at N 2 . A superinsulator, such as glass or plastics fibres or metal foils, may at least partially fill the evacuated spaces. The smaller of two adjacent corrugated tubes, to the outside of which the spacers may be affixed, may be such that it can be drawn into the larger one on site. The flexible nature of the corrugated tubes enables them to be manufactured in long lengths, e.g. 1500 metres, and transported to site wound on large drums.
Patent GB-824318-A (GB)
Title: Improvements in and relating to rail vehicle retarders
Inventor: WAINWRIGHT MAURICE
IPC: B61K7/08
Filed: 1956-06-08
Abstract: 824,318. Track brakes. COAL INDUSTRY (PATENTS) Ltd. June 6, 1957 [June 8, 1956], No. 17782/56. Class 103 (1). In a rail vehicle retarder, a platform 11, pivoted at 13 in frame 10, carries rails 12 on to which vehicle wheels W run and which are in alignment with rails R of the track and two levers 14 weighted at their lower ends are pivotally mounted on transverse shaft 15 and the upper ends of the levers 14 engage the platform 11 to hold it in the raised position shown in Fig. 1 so as to form with platform 11 and rails 12 a tapering gap with two braking elements 25 secured to the frame 10 and which frictionally engage the upper parts of the vehicle wheels. When the wheels of a fast-moving vehicle moving in the direction of the arrow V run on to the rails 12 the platform 11 and piston 18 begin to sink quickly, but a valve disc 24 loosely fitted on piston 18 rises and closes some or all of the perforations in the piston so that fluid must pass: from below to above the piston through valve 23 and pipe 22 connecting the lower end of the cylinder with the upper end thereof. This reduces the speed of sinking of the platform 11 and the'wheels W are gripped between the rails 12 and the friction linings 26 so that the vehicle is retarded until the platform sinks sufficiently to .release the wheels from. the. friction linings 26 such that the vehicle runs freely. out of the retarder. When the vehicle runs out of the retarder, the weighted levers 14 raise the platform 11, the disc 24 returning to the position shown in Fig. 1 so that the fluid can flow through the apertures in.the piston 18 and the platform can rise rapidly. When a slow-moving vehicle runs on to the platform 11 the latter sinks at a moderate speed so that disc 24 does not rise to close the apertures in the piston 18. The wheels do not contact the friction linings 26 and the vehicle passes through the retarder with little or no resistance.
Patent GB-200528-A (GB)
Title: Improvements in brakes
IPC: F16D51/20
Filed: 1923-07-10
Abstract: 200,528. Huck, L. C. July 10, 1922, [Convention date]. Band; blocks and shoes acting on drums; blocks and shoes.-The cam, toggle links or other means by which brake shoes or bands are actuated are arranged to be capable of a floating movement to equalize the pressure applied thereby. The clearance of the band or shoes with respect to the drum is adjusted by means of the releasing springs. Figs. 1 and 2 show an arrangement for the driving wheels of a motor vehicle in which two pairs of shoes disposed within a single drum are adapted to be separately actuated as by a hand and a foot lever. The one pair of shoes 39, 40 is pivoted at 31 to a plate 28 bolted to a flange on the axle housing and is actuated by a cam 53 ; the other pair of shoes is pivoted on the other side of the plate 28 at 32 and is actuated by a cam 67. The shoes have hardened plates 47, 48 on their ends for engagement with the cam. The spindle 54 of the cam 53 has an actuating lever 61 and is mounted in a bearing block 57 which is pivoted at 56 to the axle casing whereby the cam is free to float to equalize the pressure applied thereby to the shoes. The hole 30 in the plate 28 through which the cam spindle passes is in the form of a slot to permit the floating action. The spindle 70 of the cam 67 has an actuating lever 71 and is mounted similarly to the spindle 54. The shoes 39, 40 are disengaged from the drum by springs 76, 77 attached to the shoes at 80, 81 and to a rod 86 which passes through an eye bolt 87. This bolt normally clamps the rod 86 against seatings 90, 91 projecting from the plate 28. To adjust the clearance of the shoes with respect to the drum if this has become unequal by wear, the shoes are, applied to the drum and the clamping device for the rod 86 is first loosened to allow the tension of the springs to equalize and then tightened. Fig. 9 shows a band brake operated by a cam mounted to float as above described. The band in this case is freely mounted in the drum by the slotted member 114 on the band through which projects the pin 112 on the fixed plate 113. A stop 112<1> is provided for the ends of the band. Another form of band brake is shown in which the band is anchored against rotation at its middle point. Fig. 7 shows a pair of shoes actuated by toggle links 98 connected by a link 97 to an arm on a shaft 95.
Patent GB-866184-A (GB)
Title: Tri-iodo-benzoic acid derivatives
IPC: A61K49/04
Filed: 1959-05-26
Abstract: Tri-iodo-benzoic acid derivatives of the general formula: <FORM:0866184/IV (b)/1> wherein R1 represents hydrogen or a loweralkyl group, R2 represents hydrogen or a lower-alkanoyl group, R3 represents hydrogen or a lower-alkanoylamino group, and R4 represents a lower-alkyl group, are prepared by reacting a metal or ammonium salt of an acid of the formula:  <FORM:0866184/IV (b)/2> with a lower-alkyl a -haloalkanoate of the formula XCH(R1)COOR4 wherein X is halogen.  The free acids of the esters represented by the first formula may be prepared by selective hydrolysis of the terminal carboalkoxy group with a solution of alkali metal hydroxide in aqueous lower-alkanol.  The salts of the acids, including the diethanolamine and N-methylglucamine salts, are referred to.  All these compounds are useful X-ray contrast agents (Group VI).  Example 1 describes the reaction between sodium 3,5-diacetamido-2,4,6-tri-iodo-benzoate and ethyl chloroacetate, in solution in dimethylformamide, to give ethyl (3,5-diacetamido-2, 4, 6-tri-iodo-benzoyloxy) acetate.  If a -bromo-a -isopropyl acetate is used in place of ethyl chloroacetate, then ethyl 2-(3,5-diacetamido-2,4,6-tri-iodo-benzoyloxy)-3-methyl-butanoate is obtained (Example 16).  If the sodium 3,5-diacetamido-2,4,6-tri-iodo-benzoate of Example 1 is replaced by the corresponding 3,5-diformylamino compound, then the product is ethyl (3,5-diformylamino-2,4,6-tri-iodo-benzoyloxy) acetate (Example 2).  Example 23 describes the reaction between 3-amino-2,4,6-tri-iodo-benzoic acid, ethyl a -bromo-n-butyrate and sodium carbonate, in solution in dimethylformamide, to give ethyl 2-(3-amino-2,4,6-triiodo-benzoyloxy) butanoate.  This ester may be converted into the corresponding butanoic acid by heating it on a steam-bath with a solution of sodium hydroxide in aqueous ethanol (Example 39), and then acidifying the solution with dilute hydrochloric acid.  The amino group of the 2-(3-amino-2,4,6-tri-iodobenzoyloxy) butanoic acid may be acetylated by means of acetic anhydride (Example 41).ALSO:Tri-iodo-benzoic acid derivatives of the general formula <FORM:0866184/VI/1> wherein R1 represents hydrogen or a lower-alkyl group, R2 represents hydrogen or a lower-alkanoyl group, and R3 represents hydrogen or a lower-alkanoylamino group, are useful X-ray contrast agents.  The esters of the above acids may also be used, and also the salts (e.g. of sodium, potassium, calcium, magnesium, diethanolamine, and N-methylglucamine).  For bronchography, the esters can be introduced into the lungs in an aqueous suspension prepared by the aid of emulsifying agents such as carboxymethylcellulose, polyvinylpyrrolidone and dextran.  For the preparation of the iodine compounds-(see Group IV (b)).
Patent GB-1471831-A (GB)
IPC: B65D41/04
Filed: 1975-04-29
Abstract: 1471831 Closure cap CONTINENTAL CAN CO Inc 29 April 1975 [22 May 1974] 17882/75 Heading B8T A press-on turn-off gasketed closure cap for a glass container of the type in which the rim 7 of the neck together with a frusto-conical side portion 8 of the neck provide the hermetic sealing finish, comprises a top 9 and depending skirt 16, at the junction of which is a channel 19 containing a gasket 12 of elastomeric material extending on the one hand to at least adjacent the radially inner edge of the wall 14 of the channel 19 and, on the other hand, terminating in a portion 24 lining a frusto-conical portion 17 of the skirt 16. A second sealing gasket 13 lines the cylindrical portion 18 of the skirt 16 and is provided with symmetrically-spaced ribs 25 which are moulded by cold flow to the contour of threads 10 on the container neck when the cap is pressed on to the neck, a line of contact then being formed in the portion 24 of gasket 12 between the frusto-conical portion 8 on the container neck and that 17 on the closure cap. The two gaskets 12, 13 may be integral. Both gaskets 12, 13 may be formed from a solid elastomeric material, such as solid cross-linked PVC, or the gasket 12 may be formed of the solid elastomeric material and the gasket 13 from an expanded plastisol.
Patent GB-1100207-A (GB)
Title: Improved process and apparatus for degassing molten metals
IPC: C21C7/10
Filed: 1965-04-28
Abstract: <PICT:1100207/C6-C7/1> Molten metal particularly steel is degassed by pouring it, e.g. from a ladle 6 through a nozzle 7 or direct from a melting or refining furnace with continuous flow (not shown), as a free jet into a first vacuum chamber or compartment 4, allowing the molten metal to accumulate in the bottom of the first chamber or compartment to a height sufficient to form a hydraulic trap capable of excluding any re-entry of air into the first chamber or compartment during tapping of the degassed metal from a second casting chamber or compartment 11 e.g. through a nozzle 17 in its bottom closed by a stopper 18, and flushing an inert gas such as argon into the accumulated metal, e.g. from a blast box 10 through a porous plug 9.  A casting jet protection device comprising an ejector 20 with a gas deflector 21 inside may be connected beneath the nozzle 17 by a box 22 to provide an annular inert gas jet around the casting jet during continuous casting into a mould 35 under an air-tight cover 36.  De-oxidizing or alloying elements may be introduced into the vacuum chamber.
Patent GB-1437666-A (GB)
Title: Hydraulic motor
Inventor: BERKELIUS H
IPC: F03C7/00
Filed: 1974-04-24
Abstract: 1437666 Fluid-pressure actuators H BERKELIUS 24 April 1974 [26 April 1973] 17998/74 Heading F1D In an actuator having a piston-rod 5, Fig. 1 moved by a bellows 1, the bellows have rings 9 which have an outer diameter at least as large as the outer diameter of the bellows. Hydraulic medium is admitted through a valve 7. The rings abut the wall of a cylinder 2 and guide the bellows. Fig. 2 shows an embodiment in which the rings have resting flanges. The cylinder 14 may be dispensed with as the rings provide guidance for the bellows.
Patent GB-1387795-A (GB)
Title: Sensitized direct-positive silver halide emulsions
IPC: C09B23/00
Filed: 1973-04-13
Abstract: 1387795 2-Methyl and 2-phenyl-3-dimethylaminomethylene pyrazolobenzimidazoles FUJI PHOTO FILM CO Ltd 13 April 1973 [14 April 1972] 18047/73 Heading C2C [Also in Divisions G2 and C4] 2 - Methyl - 3 - dimethylaminomethylenepyrazolo[1,5-a]-benzimidazole is prepared by adding a solution prepared by adding dropwise phosphorus oxychloride to dimethylformamide under ice-cooling to a solution of 2-methylpyrazolo-[1,5-a]-benzimidazole in dimethylformamide and heating. 2-Phenyl-3-dimethyl-aminomethylenepyrazolo - [1,5-a] - benzimidazole is prepared similarly.