baber/WOPTO huggingface dataset:
Patent GB-722849-A (GB)
Title: Improvements in safety device for double twist spindles
IPC: D01H7/86
Filed: 1950-08-14
Abstract: 722,849. Double-twist spindles. LANDOLT, K. Aug. 14, 1950 [Oct. 11, 1949], No. 19309/52. Divided out of 722,404. Class 120 (2). A double twist spindle comprises a freely joumalled normally stationary unit having a periphery formed to provide a thread guiding surface; a fixed member disposed externally of the stationary unit and spaced a predetermined distance from at least a portion of the peripheral surface oi said stationary unit tc provide a gap for the passage of the twist balloon formed by the thread a portion of the stationary unit projecting outwardly a sufficient distance to engage the fixed member upon limited rotational movement of the stationary unit. As shown in Fig. 2, the shaft 18 is rotatably supported in casing 19 secured to frame 21. A disc 22 is secured to shaft 18 and has a lower portion in the form of a pulley 23. Above the disc 22 the shaft carries two ball bearings 24 on which stationary part 25 is supported. Said stationary part 25 supports a bobbin 26, has a thread guiding surface 27 and carries a soft iron armature 31 positioned opposite a magnet 30 supported in an arm 28 and having a cover 29. The peripheral surface 27 of the stationary part 25 is arranged to have some part of it eccentric with respect to the axis of the spindle so that should rotation of the normally stationary part be caused, the eccentric portion contacts the arm 28 and prevents complete rotation. The surface 27 is preferably made up of several conical surfaces at least one of which is eccentric with respect to the spindle axis.
Patent GB-876237-A (GB)
Title: Improvements in or relating to equipment for monitoring radioactivity in liquids
Inventor: CUNNINGHAM KENNETH WILLIAM
IPC: G01T7/02
Filed: 1958-06-17
Abstract: 876,237. Radioactive liquid monitoring. PLESSEY CO. Ltd. June 16, 1959 [June 17, 1958], No. 19313/58. Class 40(3) In an arrangement for the continuous monitoring of a radioactive liquid means are provided for ensuring that a constant volume of liquid surrounds a detector or a constant area is presented to a detector, and for periodic automatic purging. The radioactive liquid enters the sample container 1, Fig. 2, through the duct 2 and overflows into the outer container 4 maintaining a constant volume of liquid in container 1. An immersed Geiger-Muller detector 5 measures the # and γ activity. In another embodiment to measure # activity, Fig. 3 (not shown), a scintillation counter is in close proximity to the liquid surface. A timing mechanism 8, Fig. 4, may be provided to cut off the radioactive liquid periodically by means of the solenoid controlled valve 11 and flush out the container with clean water by opening a similar valve 10. The Geiger- Muller tube 5 may be protected from contamination by an expendible rubber sheath, the contamination being detected as an abnormally high counting rate during the flushing process.
Patent GB-883525-A (GB)
Title: Improvements in or relating to suspension control valves
IPC: B60G17/052
Filed: 1958-06-17
Abstract: 883,525. Valves. WEATHERHEAD CO. June 17, 1958 [July 26, 1957], No. 19413/58. Class 135. [Also in Group XXXII] In a pneumatic road wheel suspension, the valves 56, 156 controlling admission of pressure air to, and exhaust of air from, the pneumatic spring, are operated in dependence of change in vehicle height by the action of a lever 26 connected to the axle. Pipes 30 and 32 lead to a pressure reservoir and spring respectively. The lever 26 is coupled to rotate with a member 94 having a circularly-disposed, recessed cam track 125. Half of the periphery of the track 125 is of greater depth as shown at 124. The member 94 is axially movable relative to the main valve housing 34, and is outwardly urged by a spring 88 into a position in which the stems 66, 166, of the valves 56, 156, are out of engagement wih the track 125. Under pressure of air passing from the reservoir via the pipe 30 and conduits 72, 78, 84 and 82, to a chamber 106, the member 94 is urged against spring 88 into its normal position (Fig. 4). The track 125 is then in a position to lift one or other of the valves 56, 156 (according to the position of the lever 26). Thus, on failure of pressure in the reservoir, both valves 56, 156 are held in closed position by their springs 62, 162. Under this condition, back pressure acting from the spring via conduits 172 and 70 on the valve 56 also acts on a piston 54 rigid with the stem 66 of the valve 56 and having a larger area than the valve 56. The latter is thus held in closed position by the back pressure.
Patent GB-518570-A (GB)
Title: Improvements in or relating to the treatment of alloy steel scrap
IPC: C21C5/56
Filed: 1938-06-30
Abstract: 518,570. Alloys. STERN, H. June 30, 1938, No. 19381. [Class 82 (i)] Alloy steel scrap containing one or more of the metals chromium, molybdenum, tungsten, and vanadium, with or without nickel, is treated to obtain on the one hand an iron alloy containing the nickel, if present, but free from or low in the other metals, and on the other hand a product free from or low in nickel but containing oxides of the other metals, by treating the molten alloy with oxygen or oxides or both in the presence of acid substances such as silica or of bases such as lime or sodium carbonate. The process is applicable, for example, to austenitic stainless steel scrap, and may be carried out in a converter, or in a low-frequency or twofrequency induction furnace. The slags obtained may be utilized for the production of alloys such as ferro-chrome-silicon, or of chromates or chromic acid.
Patent GB-1131167-A (GB)
Title: A digital to analogue converter
IPC: H01F38/32
Filed: 1967-04-27
Abstract: 1,131,167. Selective signalling. SIEMENS A.G. 27 April, 1967 [28 April, 1966], No. 19566/67. Heading G4H. A digital-to-analogue converter includes a transformer Tr1, Fig. 1, having a primary winding comprising ten series-connected units windings W 1  and ten series-connected tens windings 10W 1 , the junctions of the windings being brought out as taps (each being shown for convenience by two small circles) and a secondary winding W 2 . In operation, constant reference currents J and 0-01J, obtained from a reduction transformer Tr2, are each passed through a selected number of tens and units windings by two pairs of multiposition switches S 1 , S 2  and S 3 , S 4  respectively, and the required analogue output is obtained from the secondary winding W 2 . In a modification (Fig. 2, not shown), in order to obtain a D.C. output and in order to avoid errors which might arise if rectifiers have to operate over a range extending almost to zero, an additional primary winding (W 3 ) is added to the transformer Tr1 through which the current J always passes, thereby providing a bias on the output analogue, which is removed after rectification by subtracting a D.C. signal obtained by rectifying an A.C. signal equal to the bias and obtained from a third transformer (T+3) through the primary of which the current J always passes.
Patent GB-462515-A (GB)
Title: A process and apparatus for controlling the pressure of rollers
IPC: B02C4/32
Filed: 1936-07-14
Abstract: 462,515. Roller mills; bearing adjustments. SOC. ANON. DES BREVETS FAUTH. July 14, 1936, No. 19585. Convention date, July 27, 1935. [Class 59] [Also in Group XXXIV] In a roller mill the moving roller is pressed against the fixed roller by hydraulic pressure acting on springs, the springs being maintained by mechanical means in the compressed condition after the hydraulic pressure is released whereby the spring pressure is of equal strength at each bearing of the roller. The movable roller is journalled in slidable bearings F in the frame a and is pressed against the fired roller by springs h. The bearing cap C is in the form of a cylinder with a plunger e through which liquid from a pipe m is forced by a hand pump to a hydraulic cylinder g abutting one end of the spring h. The end of the cylinder g is provided with a nut l rotatable by a key inserted through the cylinder c. When hydraulic pressure is applied to each bearing the springs h are compressed and each nut l is rotated by hand until it contacts with the end of the cylinder c. The hydraulic pressure is then released and the springs are maintained in their compressed condition by the nut l.
Patent GB-1486989-A (GB)
Title: Method of forming a metallic layer on a polyolefin articl
IPC: C08F8/46
Filed: 1975-05-09
Abstract: 1486989 Metallizing polyolefins TOA NENRYO KOGYO K K 9 May 1975 19650/75 Heading C7F An article comprising a polyolefin modified by 0À002 to 3 mole per cent of one or more unsaturated fatty acids or their functional derivatives is coated with metal by vapour deposition in vacuo and the coated article is heat-treated at 5‹ to 70‹C below the melting point of the polymer. The polyolefin may be polyethylene or polypropylene; it may be modified with acrylic, maleic, fumaric, itaconic, citraconic, methacrylic, crotonic, or isocrotonic acid, or methyl endo- or endobicyclo (2,2,1)-5-heptene-2,3-dicarboxylic acid, methyl cis- or cis-4-cyclohexene-1,2-dicarboxylic acid, or endo-bicyclo (2,2,1)-1,2,3,4,7,7-hexachloro- 2-heptene-5,6-dicarboxylic acid, or a functional derivative, e.g. an anhydride, amide, or ester. The polyolefin may include non-modified polyolefin, or a stabilizer, lubricant, filler or pigment. The metal may be Al, Ag, Au, or Cu, applied conventionally. Heat-treatment is preferably for 10  seconds to 1 hour.
Patent GB-1405053-A (GB)
Title: Electro-hydraulic control system for a variable-delivery pump
IPC: F04B49/00
Filed: 1973-04-25
Abstract: 1405053 Automatic control SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE 25 April 1973 [25 April 1972] 19661/73 Heading G3N An electro-hydraulic control system for a variable delivery pump is arranged to produce a rapid diminution of the pump delivery as a function of the excess of pump pressure above a predetermined pressure which is lower than the maximum pressure allowable in the pump. As shown a variable delivery pump 12 is controlled by an hydraulic force amplifier 14 positioned by an hydraulic actuator 13 responsive to a force-balance device having nozzles 18 controlled by a movable vane 16 of an electric servovalve having coils 20. The actuator 13 is centralized by a spring 11 to a zero pump discharge position. The coils 20 are energized from an electric computing device 23, responsive to a flow-setting potentiometer, a tachogenerator 29 coupled to the pump drive 10, and an hydraulic pressure sensor 21 in the hydraulic supply circuit of the pump. The computing device is analogue in function and limits pump delivery over a selected range inversely as the supply pressure. At a high value of supply pressure an hydraulic actuator 25 opposes the action of the spring 11 and through a plate 26 and relief valve 28 lowers the output  pressure of the reducing valve 24 to modify the effect of the nozzles 18.
Patent GB-614036-A (GB)
Title: Improvements in or relating to electron beam tubes
IPC: H01J43/02
Filed: 1946-07-01
Abstract: 614,036. Electron beam apparatus. RAULAND CORPORATION, SZEGHO, C. S., and GLYPTIS, N. July 1, 1946, No. 19671. [Class 39 (i)] In an electron beam tube, of the kind in which the beam is deflected so as to be incident on each of a plurality of targets, electrodes 6, 7, for the purpose of deriving output signals, and in which a suppressor grid 10 is provided in front of the targets to reduce secondary emission, the targets are coated with fluorescent material on the side facing the electron beam. A single grid may serve for all the targets, or alternatively each target may have its own suppressor grid. The grid may comprise a mesh in which the apertures are large compared with the wire diameter but smaller than the cross section of the electron beam ; it may be placed about 1 mm. from the target and may have a potential about one-tenth lower than that of the targets. The target electrodes may be mounted on an insulating base 14 and may be arranged in one plane or in two or more parallel planes, Figs. 2B, 4, 7 (not shown). The targets may also be arranged to overlap, Figs. 2A, 2B, 4, 7 (not shown). If a steady input signal is applied to deflecting plates 3 a potential difference is established between targets 6, 7; part of this is fed back to deflection plates 4 which tend to deflect the beam in the opposite direction to plates 3. An equilibrium position is thus established and it is stated that under these conditions the output from 6, 7 is directly proportional to the signal applied at 3.
Patent GB-1245400-A (GB)
Title: Improvements in and relating to trailer vehicles
IPC: B62D13/04
Filed: 1967-12-14
Abstract: 1,245,400. Steering semi-trailers. HOYNOR Ltd., and G. HOY. 5 Sept., 1968 [14 Dec., 1967; 25 April, 1968], Nos. 56903/67 and 19707/68. Heading B7H. Steerable wheels 4 at the rear of a semi-trailer having a fifth wheel king-pin 9 are connected by steering linkage to a lever 21 pivoted on the trailer frame and having a slot 24 in a forwardly directed arm 23 engaged by a shaft 15 which is connected to arm 14 pivoted on the king-pin axis so as to be movable around an arcuate slot 18 in the frame and carries a block-like element 17 shaped to engage the V-shaped opening 6 in the fifth wheel plate 5 of a tractor vehicle. The wheels 4 on each side of the trailer may be connected through separate steering linkage to respective arms 25, 25A of the lever 21 or may be linked by track rods 35 and connected through the steering linkage to only one arm of the lever 21. In another embodiment, the linkage ineludes means providing for adjustment of the degree of turning of the wheels and for locking the wheels in the straight ahead position after disabling the linkage.
Patent GB-147776-A (GB)
Title: Improvements in the method of uniting armature terminals adapted for building commutators for dynamo electric machines
IPC: H02K13/04
Filed: 1920-07-09
Abstract: 147,776. Apple, V. G. Jan. 22, 1917, [Convention date]. Dynamo-electric machines.-Commutator segments are cast integrally with the conductors in dies and submitted to pressure; the ends of the conductors opposite to the commutator end are joined by welding and pressure. The conductors 11, 12 are arranged in radial planes and provided with a ring support 13 of non-weldable metal having a flange 15 with grooves 16 for the T-shaped separators 17. A two-part ring 18 of similar material completes the die. The openings 19 are then filled with liquid metal, which is swaged into integral segments 21 with the conductor ends, and the separators replaced by insulation plates 20. The rear ends of the bar terminal ends 23 are welded and upset into spaces 24 between separators 25, suitable ring dies being employed. The armature 10 is cooled in a water tank 30, and the terminals are welded by means of a carbon pencil 35 connected as shown in Fig. 8.
Patent GB-867465-A (GB)
Title: Improvements in or relating to collimating view finders for photographic cameras
IPC: G03B13/20
Filed: 1959-06-10
Abstract: 867,465. Photographic viewfinders. LEITZ G.m.b.H., ERNST. June 10, 1959 [Aug. 29, 1958], No. 19858/59. Classes 97(1) and 98(1) A collimating viewfinder for a photographic camera, comprises means for imaging in the field of view of the finder an indication delimiting the image field of the finder, the indication being imaged by reflexion into the field of view from a marking carried by a marking plate, a transparent plate being arranged between the marking plate and the optical system of the viewer and having a deviating wedge-shaped portion arranged in a position adjacent to and parallel with the marking carried by the marking plate, the transparent plate being adjustable in its axial spacing from the marking plate in dependence on the focusing distance set on the objective of the camera, so as to vary the size of the delimiting indication in accordance with the focusing distance. As shown, the viewfinder and coupled short-home base rangefinder comprises viewfinder lenses 4 and 5, prisms 7-9, lens .10 pivoted in accordance with the focusing of objective 1 by lever arms 3a, 36, lenses 4a, 46, and mixing prisms 6a, 6b. The markings carried by marking plate 11, are in the form of translucent line slits and are illuminated through a window (not shown) in the camera front. Several sets of markings may be provided for indicating fields corresponding to objectives having different focal lengths. For correcting the viewfinder parallax, plate 11 is mounted in a carrier 14, and is adjusted in its own plane in accordance with the focusing of objective 1 by lever arm 3c. Also mounted in carrier 14 for adjustment with plate 11 is a transparent plate 12 having wedge shaped portions arranged in positions corresponding to the markings of plate 11. To correct for changes in image field associated with changes in distance of focus, plate 12 is connected by link 15 to lever arm 3b for adjustment of its distance of separation from plate 11 in accordance with the focusing of objective 1. An adjustable covering member described in Specification 746,674 may be provided in front of plate 11 to cover those markings not in use for a particular objective lens, and either a collecting lens 16 or equivalent wedge shaped elements, corresponding in their positions to the marking slits, may be provided either fixed to the covering member or to the plate 11. In modifications, markings on plate 11 may be illuminated by diffusely reflected light instead of transmitted light, plate 12 may be coloured, prism 9 may be adjusted instead of lens 10, the rangefinder may be dispensed with and other adjusting means provided for plates 11 and 12, and instead of displacing plate 11, an optical wedge may be adjusted in dependence on the setting of the camera objective.
Patent GB-1414735-A (GB)
Title: Anti-theft cable retracter for bonnet latch release in a motor vehicle
IPC: E05B53/00
Filed: 1973-04-26
Abstract: 1414735 Anti-theft arrangements for vehicle bonnets FORD MOTOR CO Ltd 26 April 1973 [8 May 1972] 19873/73 Heading B7J An anti-theft arrangement for a vehicle bonnet comprises a latch 16 operated from the passenger compartment by a push-pull cable 21 and capable of being locked by a key operated device 26 to prevent release of the bonnet, the inner core of the cable being wound on a spring biased drum 28 so that should the cable be cut at 31 intermediate the lock and firewall 13 the core would be wound on to the drum and a would-be thief unable to operate the latch.
Patent GB-787172-A (GB)
Title: Process for the production of sodium sulphide
IPC: C01B17/36
Filed: 1956-06-27
Abstract: Sodium sulphide which is free from water and iron is prepared by extracting the melt, obtained when sodium sulphate is reduced by carbon or reducing gases in a manner known per se, using an alcohol; the resulting solution is filtered and evaporated to give the product.  An example refluxing the melt with methanol is described.
Patent GB-168735-A (GB)
Title: Improvements in road wheels for traction engines, tractors and other mechanically propelled vehicles
IPC: B60B15/26
Filed: 1920-07-09
Abstract: 168,735. Fowler & Co. (Leeds), Ltd., J., Robinson, J., and Hodgson, H. July 9, 1920. Slipping-preventing attachments to wheels.- In tractor wheels of the type which comprise a metal rim a<1>, either plain or faced with crossbars, in combination with an auxiliary rim e at one or both sides carrying sectional tyres f of rubber or relatively soft material and of normally greater dimeter than the metal rim, packing- members g are provided for insertion between the rim e and the tyre sections when the latter have worn down to an ineffective depth. The packing-members may be of steel, wood, rope, or other material. The tyre sections are secured by radial bolts f<1>, those at the junctions of the sections having large heads f<4> to bridge the spaces formed by packing out the worn sections.
Patent GB-592620-A (GB)
Title: Improvements in method of making high temperature-resisting bonded mica products
IPC: C04B28/34
Filed: 1944-10-17
Abstract: A composite mica product of high temperature resistance is prepared by building up mica flakes into a plate using a high temperature resisting inorganic binder for adhering the successive layers, heating the plate thus formed individually to a sufficiently high temperature to melt the binder, subjecting the plate to a pressure of 250-500 lbs. per square inch, and allowing the plate to cool under substantially the same pressure in such a way as to ensure substantial uniform dissipation of the heat and so prevent unequal contraction.  The plate is built up as described in Specification 539,704, and after drying is placed between sheet metal cover plates before insertion in the oven, these plates serving to equalise the pressure during consolidation and to assist in the even dissipation of heat during cooling. Specification 532,824 also is referred to.
Patent GB-1150808-A (GB)
Title: Improvements in and relating to sealing strips
Inventor: WOHL SANFORD M
IPC: E06B3/62
Filed: 1967-04-03
Abstract: 1,150,808. Sealing glazing strips. TREMCO MFG. GO. 3 April, 1967 [14 April, 1966], No. 20070/68. Divided out of 1150807. Heading E1Q. A sealing strip of a plastics or rubber material for sealing between a glass pane and its frame comprises in transverse section a head portion 10, a terminal non-ribbed portion 26, a ribbed portion intermediate the portions 10 and 26. The portion 26 extending from the converging walls 22 of the outermost rib and having side walls which convergmore nearly parallel than the converging walls 22. The head 10 may have an extent greater in one direction than in the opposite direction, and may be of rectangular cross-section.
Patent GB-1442522-A (GB)
Title: Sheet delivery arrangement for printing presses
IPC: B65H31/32
Filed: 1974-05-07
Abstract: 1442522 Delivering sheets ROLAND OFFSETMASCHINENFABBIK FABER & SCHLEICHER AG 7 May 1974 [12 June 1973] 20097/74 Heading B8R The auxiliary stacking table 4 of a sheet delivery apparatus for a printing press is moved into position above the main stacking table on guide rails 3, 3a provided with wedge-shaped portions 7, 7a to lift the table into contact with the rear stops 5. The wedge-shaped portions are provided with abutments 8, 8a for the end of the table. Front stops 6 are provided.
Patent GB-939156-A (GB)
Title: Printing arrangement for page printing teleprinters
IPC: H04L13/18
Filed: 1962-05-25
Abstract: 939,156. Selective printing. CREED & CO. Ltd. May 25, 1962 [May 27, 1961], No. 20206/62. Class 100 (4). In a page-type teleprinter employing typelevers 7 mounted on a carriage movable along a fixed platen 16, the type basket is movable relatively to the carriage for case shift but the setting and actuating means for the type levers are mounted directly on the carriage. Selection of a type-lever 7 is effected by rotation of an element 1 into position opposite one of an arcuately-arranged set of intermediate levers 3 each connected to a type-lever by a pull wire 5 and subjected to the action of a spring 4. Actuation of the element 1 after its rotary movement operates the lever 3 adjacent thereto and through its pull wire 5 causes the corresponding type-lever 7 to carry out a printing stroke. All the wires 5 are of equal length. The parts 1 to 4 are fixed to the carriage but the type-basket 6 can be moved vertically for caseshift by means of a bar 13 engaged by a roller 11 and a guide 12 on the basket. Plates 14 at the ends of the basket are slotted to engage a fixed roller 15 having guide flanges 15a at its ends.