baber/WOPTO huggingface dataset:
Patent GB-383972-A (GB)
Title: Improvements in electric protective arrangements
IPC: H02H7/26
Filed: 1931-06-05
Abstract: 383,972. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fallou, J.; 137, Rue St-Charles, Paris.) June 5, 1931, No. 16483. Convention date, June 5, 1930, [Class 38 (v).] A section of feeder, which may be fed from either end, is selectively protected by automatically opening the circuit-breakers at both ends in the event of a fault in the section, the circuit-breakers being unaffected by a fault outside the section. Superposed high frequencies are used in conjunction with relays operated by the negative phase-sequence component or the zero phase-sequence component of the current to lock open the circuit-breaker tripping-circuits for external faults. In the arrangement shown in the Figure, the tripping coils 4 of the circuit-breakers 3, 3<1> are energized from a local source through a normally open relay 5 energized by ordinary overload in the feeder, or preferably by the negative or zero phase-sequence component which is a measure of the fault conditions. In the tripping-circuit there is also a normally-closed relay which is opened when its coil receives the H.F. oscillations superimposed on the line and a directional wattmeter-type relay which in one contact position 16 initiates the supply of H.F. oscillations from the generator 11 on the line and, in the other, completes the tripping-circuits. If a fault develops within the section itself, the negative or zero phase-sequence component circulates from the feeder to the bus-bars 2, 21 and the relays 8, 8<1> assume or remain in the positions shown, the lock-out relays 6, 6<1> receive no H.F. oscillations and remain closed. The overload causes also the closure of both relays 5, 5<1> so that both tripping-circuits are completed and both circuit-breakers tripped. For a fault outside the section (on the righthand side, for example) the relay 8 is unaffected but the relay 81 moves over to the contact 161 thereby bringing the generator 11<1> into action and supplying the H.F. oscillations to the line. These are received by the system 12 and cause the opening of the relay 6. Both tripping- circuits are now open and both circuit-breakers remain unaffected by the external fault. In a modification, Fig. 2 (not shown), the relays 7, 71 are dispensed with and the H.F. oscillator 11 in the form of a three-electrode thermionic valve is connected to the line through filters in such a manner that the plate voltage is a function of the negative or zero phase-sequence components of the currents in the feeder and, in consequence, the oscillator only becomes operative if the negative or zero phase-sequence component circulates from the bus-bars towards the feeder thereby indicating that the fault is external. Reference has been directed by the Comptroller to Specifications 274,070, 284,771 and 320,383, [all in Class 38 (v), Electric switches &c.].
Patent GB-220603-A (GB)
Title: Processes for manufacturing new and improved high refractories
IPC: C04B35/14
Filed: 1924-07-09
Abstract: Refractory bricks &c. are obtained by burning a mixture of silica in the form of tridymite and a bond of high alumina content.  The tridymite may be that naturally occurring, or may be produced by burning quartz, silica sand, millstone grit, &c.  In the latter case the burning is preferably carried out in the presence of a catalyst such as phosphorus pentoxide, sodium tungstate, borates, sulphur trioxide, molybdic acid, phosgene, or sodium chloride.  The catalyst is suitably introduced into the atmosphere of the furnace, which in the earlier stages should be of a reducing character, being changed to an oxidizing character when the conversion of the silica is nearing completion.  The silica is ground and may be burnt in this form, or it may be moulded into bricks with milk of lime, which after burning are ground and mixed with the aluminous bond.
Patent GB-1004978-A (GB)
Title: High frequency electron discharge apparatus
IPC: H01J23/02
Filed: 1961-12-19
Abstract: 1,004,978. High frequency discharge apparatus. VARIAN ASSOCIATES. Dec. 19, 1961 [Jan. 26, 1961], No. 16519/64. Divided out of 1,004,976. Heading H1D. High frequency electron discharge apparatus has an electron gun assembly which comprises a cathode 17, a focusing electrode 22 coaxial with the cathode, a first cup-shaped member 23 fixed at its periphery to the focusing electrode, a second cup - shaped member 19 disposed within the first member and also fixed at its periphery to the focusing electrode, and means 18 supporting the cathode within the second member. Both cupshaped members may have their side walls in the form of fingers 24, 21, the ends of the fingers being fixed to the focusing electrode. Specifications 1,004,977 and 1,004,979 are referred to.
Patent GB-549811-A (GB)
Title: Improvements in ploughs or other ground-working implements
IPC: A01B61/04
Filed: 1941-12-22
Abstract: 549,811. Implements for working land. ABBEY, A. (Aktiebolaget Overums Bruk). Dec. 22, 1941, No. 16523. [Class 6 (i)] A plough or other ground-working implement has its shares or tools each carried by a pivot-beam 3, 6 capable of rising backwards from its operative position on encountering an obstacle, the draught member 16 from the tractor being connected to a lever 13 pivoted at 14 on the main frame 1 and connected by draw-bars 7 to the pivot-beams 6, 3 so that it acts in opposite directions on the frame and the shares. By this action of the draught tension, each share is normally held in operative position, and is automatically returned to said position after rising over an obstacle. Mounted on the frame behind each pivot-pin 5 and on opposite sides of the beam 3 are two upwardly-extending members 19 which guide the beam during its swinging action. Plough-coulters 20 may each be carried on an arm 21 pivotally mounted at 22 and controlled by a spring 23. The draw-bars may, as in Fig. 10, each be replaced by a chain running over a wheel 50 carried by the arm 6 and attached to the frame by one part 51, and to a swingle beam 53 by the other part 52. In Fig. 9, the plough-beam 3 is hingedly connected to the frame 1 by two links 45, 46 the former being connected to the draw-bar 47. Thus on encountering an obstruction, the share is first raised upwards as a whole and is then swung backwards and upwards.
Patent GB-849595-A (GB)
Title: Improvements in or relating to the production of textiles
IPC: D04B15/70
Filed: 1958-05-23
Abstract: 849,595. Knitting-machines. RIEBEL, F. May 23, 1958, No. 16568/58. Class 74 (2). The selective displacement of the needles of a flat-bed machine, for patterning, is controlled by feeler members coacting with a board carrying the motif to be knitted in the article in relief on one face thereof. The motif is set out on a board 10 by fixing pieces 10a thereto and the needles are selected to take the background yarn or pattern yarn, by feelers 12 which hit or miss the pieces 10a when the board is advanced towards them at each course. Feelers which hit a piece 10a are projected and tilt corresponding selectors 16 against the action of springs 22 to disengage notches 21 from a locking-bar 17b, whereupon the springs 22 project the tilted selectors from the full-line to the chain-line position. A beam 17 having tricks in which the selectors slide is then advanced towards the needles 20 and, depending on whether the selectors have been projected or not, shoulders 16a on them engage members 19a or 19 which, in turn, select the needles for the two yarns. Bars 15, 25 finally return projected feelers and selectors to their initial positions; and the board 10 and beam 17 retire to their starting positions. Between each two courses the board 10 is advanced in its own plane, to bring into position that part corresponding to the next course ; this advance is rotated by a lead-screw 35 rotated through pawl-and-ratchet from a shaft bearing cams and levers which produce the movement of the board 10 towards and away from the feelers and the movement of the other members.
Patent GB-815655-A (GB)
Title: Electron tube envelope structure
IPC: H01J25/12
Filed: 1956-05-29
Abstract: 815,655. Ceramic-to-metal seals. EITELMcCULLOUGH Inc. May 29, 1956 [Nov. 10, 1955], No. 16570/56. Class 36. [Also in Groups XXII and XL (a)] In a klystron or other electron tube the seal across each resonator is effected by means of a ceramic cylinder 26, Figs. 1, 2, and metal rings 29, 30, metal ring 29 having an inwardly extending flange sandwiched between the ceramic cylinder 26 and a ceramic backing ring 31 and united thereto by metal bonding layers 33 and metal ring 30 being sealed to metal end wall 25 and welded to metal ring 29, the backing ring 31 being in sliding abutment with the end wall 25 in a radial direction, but not sealed thereto, to take up any differential thermal expansion of the parts. In the three resonator klystron described copper drift tube sections 4, 6, 7, 8 have gaps bridged by resonators containing sealing cylinders 26 of alumina ceramic. The ceramic cylinders 26 and ceramic backing rings 31 are metallized at their facing ends with a mixture of 80 per cent Mo and 20 per cent Mu in a liquid vehicle and fired in a reducing atmosphere at 1500‹ C., after which these parts are brazed to intervening metal flange 29 by Cu-Ag eutectic at 850‹ C. The sealing ring 30 is separately brazed to end wall 25, and 29, 30 are welded together at 34. Metal ring 30 may be integral with metal end wall 25. Metal rings 29, 30 are of thin metal so that they bend easily under different thermal expansion and no pressure is put on the part of 29 sealed to 26, 31. Members 29, 30, 25 are of copper, but 29 may, if desired, be of nickel. The resonator parts external to the envelope comprise split rectangular boxes with relatively sliding walls for tuning. The remaining envelope seals are made by brazing. The collector 3 has a metal exhaust pip 21 and a water jacket or cooling fins (not shown). In a prior art seal in which 25, 29 are directly sealed together, they are additionally cold welded together by the atmospheric pressure during cooling.
Patent GB-700404-A (GB)
Title: Improved feeder for granular bulk material
IPC: B65G33/00
Filed: 1950-07-03
Abstract: 700,404. Screw conveyers. BUHLER, GEB July 3, 1950 [July 21, 1949], No. 16575/50 Class 78 (1). A feeder for granular material comprises a hopper 1, a downwardly-opening worm trough 2 disposed in the hopper, a distributing worm 5 and a feeding worm 10 journaled in the hopper in parallel relationship, the worm 5 having a greate pitch than the worm 10 and moving the materia partly from the middle of the hopper outwardly whereas the worm 10 moves the material axially from the ends of the hopper inwardly, and gate 14 pivoted in the hopper above the worm and adjustable in a direction at right angles to them for controlling the flow of material. The helices of the worms are of opposite hand and the helices 6, 7 of the worm 5 are mutilated. The ends of the worm 5 are provided with blades 8, 9 each of which forms part of a helix of opposite hand to the adjacent helix. The gate 14 has a slide 19 mounted on it which carries a rack 18. A toothed sector 17 pivoted at 29 in the gate engages the rack and is turned by rotating the screw 16. This screw engages a member 30 rotatably mounted in the sector and its end is connected to a member 32 rotatably mounted in the gate. The trough 2 may be adjustable vertically. The worm 10 is driven at constant speed from a pulley 23 through reduction gearing 24 and is coupled to the worm 5 through gears 25, 26 designed to enable the latter to be driven at a maximum speed equal to half the speed of the worm 10.
Patent GB-1088824-A (GB)
Title: Method of determining the dielectric properties of formations penetrated by a bore-hole
IPC: E21B47/00
Filed: 1965-04-20
Abstract: 1,088,824. Geophysical surveying by electrical determination. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. April 20, 1965 [April 22, 1964], No. 16605/65. Heading G1N. In a method of determining the dielectric properties of oil bearing rock formations where oil and water are present together, two conductors are arranged one above the other in a bore hole and may be in the form of a di-pole aerial. The conductors are connected to an oscillator Fig. 1 (not shown) having an output frequency in the range 150 Mc/s to 1500 Mc/s. The frequency at which the circuit operates and the change in frequency on displacement of the conductors in the hole, may be measured by comparison with a fixed frequency with the aid of a heterodyne circuit. The changes in signal amplitude at the generated frequency may also be measured and values of dielectric properties #', #" determined from the measurements. The complex dielectric constant includes the dielectric constant proper #' and a dielectric losses component e", i.e. a component #' which is 90 out of phase with the voltage applied and component #" in phase therewith. It is stated that by using frequencies in the above range, the magnitude #' is independent of salinity and is dependent only on the porosity, the degree of water saturation and the type of rock formation, and the value of e" is dependent on salinity which can be determined from measurement of #". The degree of water saturation can be determined from measurement of #', if the porosity and type of rock is known e. g. from well cuttings.
Patent GB-279536-A (GB)
Title: Improvements in or connected with revolving sprinkler apparatus for dealing with sewage
IPC: C02F3/04
Filed: 1926-07-02
Abstract: 279,536. Mills & Co. (Engineers), Ltd., J., Mills, M. W., Bolton, J., and Bolton, J. F. July 2, 1926. Stuffing-boxes, substitutes for.-In a revolving sewage sprinkler having a mercury seal for the revoluble column, a channel a<2> is provided to receive the mercury if it is blown out of the seal. A passage a<3> controlled by a screw a <4> permits the mercury draining back to the seal. The base is formed in two parts a, a<1> forming the mercury trough between them into which a sleeve b' on the rotary member dips. The inner flange of the channel a<2> is slightly lower than the outer; a, flange b<2> on the rotary member dips into this channel.
Patent GB-666341-A (GB)
Title: Improved centrifugal liquid-atomiser
IPC: B01F25/74
Filed: 1949-06-23
Abstract: 666,341. Spray-producers. HAUSER & CIE AKT.-GES. NEUMUHLE TOESS. June 23, 1949 [July 10, 1948], No. 16667/49. Class 69 (iii) [Also in Group XI] Spaced discs 1 and 2 of a liquid atomiser have arched inner walls 6, 7 and a rim baffle portion 8. One or more liquids may be introduced to the space 5, the width of which may be varied by a hydraulically driven piston and cylinder device. Several discs may be superposed, Fig. 6, with parallel outlets or, alternatively, the rim baffle portions of some spaces may emit converging sprays. In a further embodiment, Fig. 8, the lower disc includes an impeller portion 29 and a further baffle rim 30.
Patent GB-552918-A (GB)
Title: Anti-aircraft barrage projectile
IPC: F42B12/58
Filed: 1940-11-25
Abstract: 552,918. Ammunition projectiles. STARK, J. C. Nov. 25, 1940, No. 16853. [Class 9 (i)] An anti-aircraft or other projectile houses unequally sized shells which fit closely together to form a cylinder located centrally of the projectile, the centre or centres of gravity of one or more of the shells being. farther from the longitudinal axis of the projectile than the centre or centres of gravity of the other shell or shells. The six shells A<SP>1</SP> B<SP>1</SP> A<SP>2</SP>, B<SP>2</SP> ... are in the form of unequal segments superposed on each other. The time fuze b ignites a charge or cordite contained in chambers h', h<SP>11</SP> and an axial channel h<SP>111</SP>, whereupon (a) the cordite ignites fuzes I in the shells A', B<SP>1</SP>, .... which have been rotating with the projectile, are scattered, those shells having a centre of gravity near the axis of the projectile being projected with a relatively low tangential velocity, and those having a centre of gravity remote from the axis being projected with a relatively high tangential velocity. When the fuze l in a shell burns through to the charges of gunpowedr n, tetnyl o and T.N.T. p contained in the shell, the shell explodes. By varying the lengths of the fuzes l, the distances from the projectile burst to the shell bursts may be varied. Fig. 3 shows a modified form of segmental shell which comprises steel wire r wound into the form of a bobbin, the end sof the wire being anchored in the projectile base c, whereby, on explosion, an aerial net is formed.
Patent GB-260913-A (GB)
Title: Improvements in or relating to apparatus for igniting flash powder and for like purposes
IPC: F21K5/12
Filed: 1926-07-06
Abstract: 260,913. Stephens, R. E., and Yates, J. J., and Gratton, B. July 6, 1926. Magnesium and like powder lamps. - A low tension apparatus for igniting flash powder comprises a hollow ebonite or like insulator body p containing a rotatable reel of fuse wire r which is led over contacts s, s<1> on the top of the body separated by an insulating plug t. The flash pan u is hinged to the top of the body and is adapted to close down over the contacts s, s<1> so as to secure the fuse wire in position. The reel is carried by a pin r<1> on a plug r<2> which screws into the body p and is internally threaded to screw on to a camera tripod. The contacts s, s' are connected to terminals. q, q<1> on the base of the body p. The battery d is carried in one compartment of a box a which is provided with plug sockets to receive pugs x on twinleads connected to the terminals q, q<1>. One socket is connected directly to one battery terminal and the other socket is connected to the other battery terminal through a switch comprising a spring contact e and a fixed contact f. This switch is operable by the camera release bulb o. The fuse unit may be packed in the other compartment of the box a when not in use. In a modification the contacts s, s<1> are made of spring material and means such as screws, a cane, or an adjustable plug t are provided for adjusting the distance between them so as to vary the length of fuse wire employed.
Patent GB-1442967-A (GB)
Title: Process for the production of carbon or graphite fibres
IPC: D01F9/32
Filed: 1975-04-24
Abstract: 1442967 Carbon fibres BERGWERKSVERBAND GmbH 24 April 1975 [24 April 1974] 16996/75 Heading C1A Carbon fibres are made by heating a hard pitch with a Kramer Sarnow softening point in the range 70‹ to 190‹ C. to a temperature 40‹ to 100‹ C. above its softening point and filtering the resulting melt under a high pressure to remove substantially all solid particles; further treating the pitch, as by distillation or solvent extraction, to remove low molecular weight constituents; melt-spinning the treated pitch; dusting over the resulting fibres with finely ground active carbon impregnated with a liquid oxidizing medium and then heating in an oxidizing atmosphere; and carbonizing, and optionally graphitizing, the oxidized fibres. Before filtration a filter-aid, suitably kieselguhr or diatomaceous earth, may be mixed with the molten pitch. Distillation may be effected at 280‹ to 350‹ C. and solvent extraction may be carried out by cooling and grinding the pitch, treating it with a solvent, preferably a substantially aliphatic solvent of boiling point in the range 60‹ to 70‹ C., and separating the solvent, the residual particles being melt-spun. Suitable oxidizing media include sulphuric acid and aromatic nitro-compounds, e.g. nitrobenzene, nitrotoluene and nitrophenol. The fibres may be heated to 300‹ to 400‹ C. in the oxidizing atmosphere.
Patent GB-1411299-A (GB)
Title: Anti-rotation washers for flanged or round headed screwed  fastenings
IPC: F16B39/24
Filed: 1973-04-10
Abstract: 1411299 Locking nuts and bolts ROLLS-ROYCE (1971) Ltd 3 April 1974 [10 April 1973] 17067/73 Heading F2H A locking washer 20 has a peripheral flange 22 with at least one internally convexly curved portion 23 to resiliently engage at least frictionally the periphery of a flange or a round head of a bolt 18, setscrew, or nut used to fasten together two or more components such as 10, and at least one side to be located adjacent an abutment surface 14 of one of the components 10 to prevent rotation of the washer relative to the component. The washer may be generally square, Fig. 1, triangular (Fig. 3, not shown), elliptical (Fig. 4, not shown), or as shown in Fig. 5 with a single outwardly concave flange portion 23c. Each outwardly concave portion 23 may have an inner pip 26 to engage in one or more grooves in the head or flange of the bolt, setscrew, or nut, and/or an outwardly bent lip 25 to provide a lead-in to facilitate insertion of the head or flange into the washer. Slots 24 at the bases of the outwardly concave flange portions 23 allow resilient deflection of the portions. Where an abutment surface cannot be provided on one of the main components, a rectangular auxiliary washer (36) with at least one transverse rib (38, 40) to provide the abutment surface is non-rotatably held in a shallow groove (30) milled in one component (34), (Fig. 6, not shown). Alternatively, a channel shaped washer 42, Fig. 7, with holes 44, 46 to correspond to two fastener-receiving bores in a component is used to non-rotatably house at least one locking washer 20 which is axially located in the channel by dimples 54, 56. Cutouts 58, 60 in the lips 48, 50 of the channel flanges allow the locking washers to be extracted from the channel.
Patent GB-1349992-A (GB)
Title: Extrusion die
IPC: B29C48/08
Filed: 1971-05-26
Abstract: 1349992 Sheet extrusion die PENNWALT CORP 26 May 1971 [29 June 1970] 17315/71 Heading B5A In the extrusion of polyvinylfluoride flat film or sheet, the melt flow passage to the die lips 32, 34 increases at 24 to the full width of the die outlet across which it is valved, at a transverse constriction intermediate transverse enlargements 26, 30, by a plurality of adjacent valve elements 50 extending across the full width of the outlet and which are independently adjustable transversely of the constriction defined with an opposed stationary surface 28. The elements 50 are slidable, at slots 56, over a supporting key 54, in their adjustment effected by screws 52 which each locate at a locking washer 58 within a bore of an element and are locked in their adjusted position by a nut 60. The upper die lip 34 is adjustable by screws 38, and cartridge heaters 42 are provided to heat the die to temperatures of 1000 F., preferably 400 to 800 F.
Patent GB-1183259-A (GB)
Title: Novel Polymeric Materials Carrying Substituted Triazinyl Groups
Inventor: LILLY MALCOLM DOUGLAS
IPC: C12N11/06
Filed: 1967-07-14
Abstract: 1,183,259. Triazinyl substituted polymers; enzymes. NATIONAL RESEARCH DEVELOPMENT CORP. 2 July, 1968 [14 July, 1967; 12 Feb., 1968; 10 April, 1968], Nos. 32541/67, 6869/68 and 17322/68. Headings C3A and C3H. [Also in Division Dl] . _ An organic polymer, e.g. cellulose, which is substituted (i) by groups of the formula where X represents a radical capable of reacting with a biologically active substance and Y represents a halogen atom or a nucleophilic amino, aromatic or aliphatic group; and (ii) by a further substituent group which bears a positive charge when in contact with a solution having a pH in the normal biological range, is made by contacting the polymer already containing the group (ii) with a triazine bearing N-substituents X and Y as defined and a further N-substituent Z which is a halogen. Many groups Y and (ii) are listed. In examples diethylaminoethyl cellulose is reacted under alkaline conditions with (1) and (2), 2,4-dichloro-6-carboxymethylamino - s - triazine; or (3) an orange dye which contains a suitably substituted s-triazinyl group. , Enzymes may be reacted with these products at the group X. The products of the examples arc reacted under alkaline conditions with (1) [3- galactosidase, (2) penicillin amidase, (3) lactic dehydrogenase. The reaction product with (2) is used to convert benzyl penicillin to 6-aminopenicillinanic acid.