baber/WOPTO huggingface dataset:
Patent GB-797561-A (GB)
Title: Improvements in and relating to annular valves
IPC: F16K15/10
Filed: 1956-02-07
Abstract: 797,561. Fluid-actuated valves. SCHMIDTHUBER, R., and SCHMIDTHUBER, L., [trading as SCHMIDTHUBER, R. & L.]. Feb. 7, 1956 [Feb. 7, 1955; March 22, 1955], No. 3849/56. Class 135. An annular valve having a valve disc 1 guided without sliding friction by a guide disc 4, has the elastic guides 5 of the guide disc assuming their unstressed condition at an intermediate point in the movement of the valve disc. The ported valve disc 1 has short elastic arms 2 riveted at 7 to the elastic guides 5, the valve and guide discs are then confined between the annular seat and a stop plate with the guide disc being secured at the centre of the stop plate. The elastic guides in their unstressed condition will position the valve disc at a height f above the valve seat, this position being slightly nearer the seat than the stop. Springs housed in the stop plate move the valve disc on to the seat in the position 1<SP>1</SP> so that the elastic guides are stressed in a downward direction by half the amount needed to move the valve disc from the fully open position 1<SP>11</SP> to the fully closed position 1<SP>1</SP>. When the valve is fully opened the elastic guides are stressed to the same amount but in an upward direction.
Patent GB-1255441-A (GB)
Title: Apparatus for testing electric switching circuits or modules
IPC: G06F11/24
Filed: 1970-01-27
Abstract: 1,255, 441. Marginal testing of logic units. CONTROL DATA CORP. Jan. 27, 1970 [Feb. 18, 1969], No.3884/70. Heading G1U. In a system for "marginal testing" a plurality of logic modules 101, Fig. 2, each including its own source of reference voltage, for example from a potential divider 212, 213, each logic module is associated with a bi-directional current switch 220, and means are provided for selecting one of the bi-directional current switches and for causing it either to raise or to lower the reference voltage applied to the associated logic module, e.g. by injecting current into, or extracting current from, the junction 215 of the potential divider. As described 4096 logic modules, such as 101, Fig. 2, and forming part of a computer, are arranged in 16 chassis or cabinets Fig. 3, each of which is divided into four quadrants each containing an 8 x 8 array of logic modules. Selection of a particular logic module is by a 12-bit word 301, Fig. 3, six bits selecting 303 a particular quadrant, and the remaining bits, in two groups of three, selecting a row and a  column within a quadrant. Each quadrant has an associated control circuit Fig. 5, one of which is selected by marking its lead 418, and to all of which are applied inverse signals 419a, 419b, indicating whether the reference voltage is to be raised or lowered. As a result the selected control circuit marks either a "high" or a "low" lead 412, 422, which marking is applied Fig. 4 to a corresponding group of 64 voltage margin driver circuits, Fig. 6, (not shown) each of which includes a bi-directional current switch as shown at 220 in Fig. 2. The voltage margin driver circuits Fig. 4 also receive decoded row and column signals, so that only one voltage margin driver circuit is activated either to inject current into, or to extract current from, the junction 215, Fig. 2, of the potential divider reference voltage source of the associated logic module, thereby either raising or lowering the reference voltage applied to that logic module. Once the reference voltage applied to a selected logic module has been varied, a diagnostic programme is run in order to detect any incipient faults in the system.
Patent GB-378334-A (GB)
Title: Improvements in or relating to apparatus for carrying out roasting, sintering, calcining and the like operations
IPC: F27B21/06
Filed: 1932-02-09
Abstract: 378,334. Treating ores &c. METALLGES. AKT.-GES., 45, Bockenheimer Anlage, Frankfort-on-Main, Germany. Feb. 9, 1932, No. 3894. Convention date, Feb. 13, 1931. [Class 82 (i).] In ore roasting or sintering apparatus of the endless belt type, or other apparatus in which conveyer belts or trains of t r u c k s exposed to heat circulate on a rigid track, the curved section 4 of the track at one end is mounted as a separate unit adjustable about a pivot 5 by means such as spindles 7 and nuts 8.
Patent GB-397028-A (GB)
Title: Improvements in and relating to switch mechanism for manually controlled electrical boring machines
IPC: F23D14/04
Filed: 1933-02-08
Abstract: 397,028. Retractive switches. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Feb. 8, 1933, No. 3905. Convention date, Aug. 31, 1932. [Class 38 (v).] An electrically driven boring-machine is manipulated by two handles 1, 2 connected to the motor casing 3 carrying the driving spindle- 5. A power cable 20 is connected to the machine by a plug 19 placed so as to be protected by the handle 2 when the machine is placed on the ground. The current is controlled by a snap-action tumbler switch 10 having an operating lever 11 which is operated by a handle 6 and lever 8 through a push rod 9 extending in a dust-proof manner through the casing. A retractive spring 12 returns the switch to the off position, against an adjustable stop 23. The switch casing is rendered dust proof by a cover 21, and a hole 22 is provided at the bottom of the handle 1 so that dust which enters at the switch handle slot will fall out and not accumulate.
Patent GB-638460-A (GB)
Title: Improvements in and relating to potato planting machines
IPC: A01C9/00
Filed: 1948-02-10
Abstract: 638,460. Potato-planters. TRIGGS, W. W. (C. V. Machinefabriek H. Vissers). Feb. 10, 1948, No. 3906. [Class 6 (i)] A potato-planting machine has a furrow-opener 1 and furrow-filling discs 3 mounted on a beam 2 which is suspended from the ends of two bell-crank levers 4, 6 and 9, 11, pivoted at fixed points, 5 and 10, the other ends of the levers being interconnected by a link 12 so that the beam can be raised bodily by a lever 19. The lever 19 is also a bell-crank and its other arm 18 forms a toggle-joint with a link 17 connected to the lever-arm 11. The rear end of the beam 2 is connected to the lever-arm 9 by a link 8 pivoted, at 7, to the beam. The lever-arms 6 and 11 are normally parallel, but the arm 6 is movable over a quadrant 13 to alter the relative positions of the members 1 and 3. The beam carries an adjustable supporting wheel 15.
Patent GB-709149-A (GB)
Title: Improvements in or relating to portable pneumatic tools
IPC: B23D51/18
Filed: 1952-02-14
Abstract: 709,149. Reciprocatory filing. MERCER, A. C. Feb. 14, 1952, No. 3923/52. Class 83 (3). [Also in Group XXIII] A portable pneumatic tool comprises two single-acting pistons 29, 30 which are coupled to move in opposite directions and one of which carries a saw, file, abrading tool &c. 39, each piston being arranged to close an exhaust port 27a or 28a during its exhaust stroke so as to trap and compress a portion of the exhaust air. The trapped air assists in reversing the piston and prevents contact of the piston with the cylinder end. In the sawing-machine illustrated, each piston controls ports such as 23a, 22a. The pressure air passes through a lubricating chamber 14 to a piston valve 20. At the end of its stroke, the piston 29 uncovers the port 22a and causes the valve 20 to be moved to the right. Air then passes through the passage 28 and is exhausted through the port 27a and a passage 46. The exhaust air continues down a passage 47 to clear swarf from the saw 39 which is pivotally mounted to the piston 30. The saw is supported by a member 44 and is protected by a guard 45. The pistons and their associated parts are balanced as by making the piston 29 of steel and the piston 30 of aluminium.
Patent GB-270799-A (GB)
Title: Improvements in locknuts
IPC: F16B39/12
Filed: 1926-02-11
Abstract: 270,799. Hutton, H. T. Feb. 11, 1926. Locking - In a device of the kind in which the adjacent faces of two nuts have grooves or recesses 4, 5 concentric with the taphole and engaged by a ring 3, the inner walls of the recesses are caused to close on the bolt without the ring necessarily bedding in the bottom of the recesses. Flats 12 are formed on the outer surface of the ring which has a curved cross-section and the inner sur.face is eased off at 13. The outer walls of the recesses are upset at 10, 11 to retain the ring. Specification 176,274 is referred to.
Patent GB-1287213-A (GB)
Title: Improved high pressure cylinder
Inventor: LUNDSTROM HANS
IPC: F16J12/00
Filed: 1970-01-28
Abstract: 1287213 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 28 Jan 1970 [29 Jan 1969] 4050/70 Heading B3P A high pressure cylinder particularly for a hydrostatic extrusion press comprises an inner tube 1a-1c surrounded by a prestressed tube 2 and a prestressed sheath 3. The inner tube allows high-pressure fluid into the space between it and the prestressed tube 2 so as to space the tubes at high pressures. At low pressures the inner tube acts as a support for the prestressed tube. The inner tube may be segmented, have radial holes or slits, be spaced from the end plates (5), (6), Fig. 1 (not shown), of the cylinder, or be formed of two axially spaced tubes to allow the fluid to enter the gap between the inner and the prestressed tube 2. The sheath 3 is made of wound metal strip or wire or of a further tube, prestressed on to the other prestressed tube.
Patent GB-1155759-A (GB)
Title: Seals
Inventor: BEASLEY PHILIP CHARLES
IPC: F16J15/56
Filed: 1967-01-27
Abstract: 1,155,759. Seals. ENGLISH ELECTRIC CO. Ltd. 25 Jan., 1968 [27 Jan., 1967], No. 4092/67. Heading F2B. A seal for a nuclear reactor fuel assembly comprises a segmented seal ring 15 having segments 21, 22 with oppositely inclined end faces so as to permit relative sliding movement, means 16 and 17 being provided for urging the ring radially outwardly into sealing engagement and for urging the inclined end faces axially into sealing contact with each other. The segments may be made of graphite. Axial pressure may be provided by a wavy spring 17 or a number of helical springs. Radial pressure may be provided by a piston ring 16 and assisted by a fluid pressure differential.
Patent GB-305637-A (GB)
Title: Improvements in and relating to the protection of electric systems
IPC: H02H9/08
Filed: 1929-02-08
Abstract: 305,637. British Thomson-Houston Co., Ltd., (Assignees of Park, R. H.). Feb. 8, 1929. Addition to 305,667. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 9, 1929]. Protective arrangements. - Relates to the protection of electric systems wherein the neutral point 8 of the high - tension transformer 7 supplying the line cannot be earthed through a limiting resistance but an equivalent protection is obtained by connecting the lowtension side 9 of the transformer through an impedance 11 to the supply generator 13. According to the invention, flux controlling means, which may be put in action on fault, are associated with the impedance device to reduce the impedance thereof to currents, for example, triple harmonics which tend to circulate in the closed circuit comprising the delta-connected transformer windings 9 and the impedance windings 10 connected at the corners of the delta. In the arrangement shown in Fig. 1, three windings 10 are arranged on the core and connected with the corners of the delta; their midpoints are connected to the three phases of the supply. A fourth winding 16, normally short-circuited, is opencircuited on fault by the circuit-breaker 17 operated by a current transformer 19. In a modification, all of the windings 10 are normally shortcircuited by a switch tripped open on fault. In a modification, Fig. 3, the winding 16, or one of the windings 10 is permanently short-circuited by a series resonant circuit 20, 21 tuned to the harmonic it is desired to pass.
Patent GB-1046365-A (GB)
Title: Improvements in or relating to venturi scrubbers and the operation thereof
IPC: B01D47/10
Filed: 1964-01-31
Abstract: A venturi-scrubber has blades 6 which are rotated to remove solids adhering to the wall of the convergent section.  Preferably the blades are carried by hollow spokes and supplied with washing liquid, therethrough, the washing liquid thus supplied issuing as jets and serving to rotate the blades.
Patent GB-621296-A (GB)
Title: Improvements in or relating to heaters for tar, bitumen or other road treating materials
IPC: C10C3/12
Filed: 1947-02-14
Abstract: 621,296. Tar and like cauldrons. JOHNSTON BROS. (CONTRACTORS), Ltd., and LAMB, P. G. Feb. 14, 1947, No. 4351. [Class 107] In a cauldron, road-treating material is pre-heated before it is allowed to mix with the main body of the material in the cauldron. The cold material enters the cauldron through hoppers 23 and falls into troughs 21 which partially surround the pre-heating pipes 19. Hot gases passing through these pipes 19 melt the material which flows from out of each trough over the outer edge, which is at a lower level than the inner edge, on to the upper limbs of U-shaped heating pipes 24. The furnace gases pass along the lower limb and back through the upper limb of each U-shaped pipe into one of the tubes 19 leading to a flue 20.
Patent GB-576674-A (GB)
Title: Improvements in valve gear for reciprocating pumps
IPC: F16K27/00
Filed: 1944-03-09
Abstract: 576,674. Valves for reciprocating pumps. EICHER, F. March 9, 1944, No. 4365. [Class 102 (i)] A composite valve block for a multi-cylinder reciprocating pump comprises a series of separate distributors 2, one for each cylinder, and inlet and exhaust manifolds 7 8 both extending transversely across and. connected to each of the distributors, with a valve seating 11, 14 clamped in each connection. Each distributor 2 is connected to its pump cylinder by a central pipe 1, whilst the, inlet and, exhaust valves 15, 18 are arranged, respectively, within enlarged valve chambers in the distributors 2 and the exhaust manifold 8, and are held in position by removable covers 16, 19. The block may be surrounded by a casing 26, and it may be carried by a support 23 resiliently mounted on a bracket 25.
Patent GB-585322-A (GB)
Title: Improvements in or relating to apparatus for colorimetric gas investigation
IPC: G01N1/24
Filed: 1945-02-21
Abstract: <PICT:0585322/III/1> Apparatus for colorimetric gas investigation comprises gas induction means, such as a rubber bulb 18 operated by a handle 21, connected to the atmosphere through alternative gas flow channels each adapted to receive a detachable detector tube 15, and a valve 39 (see Group XXIX) on the atmospheric side of the detector tubes to select the tube to be used.  The tubes are held between sockets 36 and spigots 34 attached to telescopic spring-controlled housings 33.  The tube 30 connecting the bulb with the detector tubes includes a capillary section 28 and a filter 29.  The detector tubes may contain an absorbent material 17 such as silica gel, and the indicator material 16 may comprise palladous sulphite or a complex mixture containing the palladous and sulphite radicals for the detection of carbon monoxide.
Patent GB-1126974-A (GB)
Title: Improvements relating to pulsed nuclear reactors
Inventor: HANKE WILHELM
IPC: G21C1/30
Filed: 1966-02-02
Abstract: 1,126,974. Reactors. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 2 Feb., 1966 [15 Feb., 1965], No. 4551/66. Heading G6C. A pulsed nuclear reactor, especially but not essentially a fast reactor, has its reactivity pulsed by a disc rotated before a neutron exit window of the reactor, which disc carries localized means, e.g. a piece of nuclear fuel or a reflector, for increasing the reactivity as it passes in front of the window, ascrew connection being provided between the disc and its driveshaft with a frangible driving connection arranged, in the event of a sudden stoppage of the driveshaft, to fracture under the momentum of the disc and to permit the disc to continue rotation by running along the screwthread of the drive-shaft. The hand of the screwthread is such that as the disc runs along the driveshaft it moves away from the window. The sudden stoppage of the driveshaft may be the result of seizure or breakage of a bearing. In order to brake the disc, the screwthread may be coarse and/or the disc may work against deformable material as it moves out of position.
Patent GB-241083-A (GB)
Title: Improvements in carriages for anti-aircraft guns
IPC: F41A27/06
Filed: 1925-02-19
Abstract: 241,083. Soc. Anon. des Anciens Etablissements Hotchkiss et Cie. Jan. 16, 1925, [Convention date]. Addition to 234,775. Mountings.-An arrangement of three levers 7, 9, 13, as claimed in the parent Specification, for supporting an anti-aircraft gun M during elevational movements is characterized according to the present invention by the pivot 65 of the lever 7 being fixed on the support 3, whilst the pivots 11, 66 of the levers 9, 13, respectively, are movable in opposite directions, preferably by conjugated means. In the form shown, the gun is elevated by a differential screw device 5, 18, rotated by a hand-gear 20 to slide the pivot brackets 67, 12 in the frame 3. This frame is connected to a sleeve 1 trainable on ball bearings 34, 33 relatively to a fixed pedestal 2 carried by a tripod or like support. The sleeve 1 carries a folding gunner's seat 36.
Patent GB-983230-A (GB)
Title: Improvements relating to electromagnetic relays
Inventor: BARROW NORMAN
IPC: H01H50/58
Filed: 1963-02-05
Abstract: 983,230. Electromagnetic relays. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 29, 1963 [Feb. 5, 1963], No. 4658/63 Heading H2B. A post office relay having two contact spring pile-ups mounted side by side on the yoke has a permanent magnet positioned between the pile-ups to act as a magnetic spark blow-out device for the contacts. The magnet 16 is polarized so that the side facing the pile-up 7 is of opposite polarity to that facing pile-up 8. An insulating member 17, secured with a buffer block 13 for the fixed contact springs to the yoke, carries the permanent magnet.
Patent GB-588508-A (GB)
Title: Improvements in guards for guillotines
IPC: B26D7/22
Filed: 1945-02-24
Abstract: 588,508. Machinery guards. CARDIGAN SHEET METAL WORKS, Ltd., and UPCHURCH, H. A. Feb. 24, 1945, No. 4661. [Class 80 (iv)] A guard for a guillotine for cutting sheet metal or other material comprises upper and lower members 6, 7 defining a narrow throat 8 for the passage of the sheet material and connected at their ends by guide members 9, 10 working in guides 11, 12 on the frame 3 of the machine. The guide member 10 at the " high " end of the movable blade 1 is pivoted on a pin 13 to the frame 3 whilst the guide member 9 is pivoted by a pin 15 to the beam 2 carrying the blade 1 at the " low end thereof so that the guard moves with the movable blade. Flared portions 6a, 7a of the upper and lower guard members protrude into close proximity to the movable beam 2 and the lower fixed blade 4.
Patent GB-642454-A (GB)
Title: Improvements in or relating to firelighters, and to the treatment thereof
IPC: C10L11/00
Filed: 1948-02-18
Abstract: 642,454. Firelighters. BYE, C. L. Feb. 18, 1948, No. 4684. [Class 50] In an apparatus for forming firelighters from sticks or strips of wood or the like by impregnating them with an inflammable liquid such as paraffin or kerosene, the strips are partly crushed by the application of pressure whilst in contact with the liquid. In the form shown, the apparatus consists of a pair of corrugated rollers 2, partly immersed in a tank 1 containing the inflammable liquid. The rollers are driven in opposite directions by a motor 9, the nip between them being adjusted by a screw 5 to a distance less than the thickness of the strips to be treated. The strips are fed downwardly through the rollers, which crush them to the form shown in Fig. 3. whilst in contact with the liquid, which is absorbed into the increased surface of the strips. The firelighters may be used singly or threaded, with interleaving cardboard strips. on to a piece of wire (Figs. 4 and 5, not shown).
Patent GB-257171-A (GB)
Title: Improvements relating to the manufacture of fungicidal and insecticidal media
IPC: A01N59/20
Filed: 1926-02-19
Abstract: 257,171. Carpmael, W., (Farbenfabriken vorm. F. Bayer & Co.). Feb. 19, 1926. Fungicides; insecticides.-Dusting powders for combating plant pests are prepared by heating copper sulphate with an alkaline earth carbonate (e.g. chalk or barium carbonate) in the presence of water. The mass obtained is dried and powdered. Other fungicides or insecticides, such as methylene blue, may be added. Specification 169,758 is referred to.
Patent GB-146557-A (GB)
Title: Improvements in and connected with cinematograph film printing apparatus
IPC: G03B27/16
Filed: 1919-08-26
Abstract: 146,557. Hearn, R. K. Aug. 26, 1919. Controllers, actuating-mechanism for. - In kinematograph-film printing-apparatus for films having sections of varying density and notches at each section so that contacts P, R, Fig. 1, close a circuit which automatically steps a contact arm controlling the resistance in the lamp circuit, the controlling arm e is stepped by a coiled spring through an electro-magnetic escapement, the controlling member of which is integral with the core of the solenoid. The arm e carries rollers f, f', which are resiliently mounted and move respectively over a contact bar g in the printing lamp circuit and over a set of contacts 1 to 5. These contacts are connected with a plugboard having two sets of crossing strips 1 to 5 and 1<a> to 5<a>. Each plugs is connected to one of the strips so that for each circuit the resistance k is adjusted. The escapement for the wheel c on the arm e is constituted by a notch b<1> in the core b of the solenoid a, which is fitted with a spring gate p. In the normal position, Fig. 4, the gate p holds a tooth m<1> on the wheel c. When a new section of the film passes the contacts P, R, Fig. 1, the core b is sucked in as shown in Fig. 2, and the tooth m<1> slips past the gate p, which flies open to intercept the next tooth. When the circuit is broken again, the core b returns under the influence of the spring n and the tooth m<1> slips through the notch in the core and steps the arm e. The studs 1 to 5 are shown spaced, but in practice are sufficiently close to avoid the lamp circuit being broken as the roller f<1> is moved.
Patent GB-209322-A (GB)
Title: Improvements in ships boat launching gear
IPC: B63B23/18
Filed: 1923-02-19
Abstract: 209,322. Hamlyn, J. A. A. Feb. 19, 1923. Boat-lowering gear.-In boatlowering gear of the kind comprising an overhead athwart ship gantry a terminating in hinged outboard extensions d the boat being suspended from a traveller b running on the track, a unit construction is adopted comprising the boat, the lowering and raising gear designed to be operated from the boat and the traveller from which the lowering gear is suspended. A pair of bell-crank levers i lock the traveller in the outboard position by engaging with notches j cut in the depending flange k of the outboard extension. The bell-crank levers are operated from the central lever h which is within reach of the persons in the boat. The standards d<1> which support the locking-collars e and foot operated locking-levers outboard extensions d, are provided with notched f.
Patent GB-1493469-A (GB)
Title: Process for the production of food
IPC: A23L9/10
Filed: 1975-02-04
Abstract: 1493469 Free flowing food products CPC INTERNATIONAL Inc 4 Feb 1975 [5 Feb 1974] 4784/75 Headings A2B and A2E A fat containing food is mixed with pellets of dry ice of uniform cross-section, and the dry ice is allowed to sublime to give a homogeneous free flowing product. The fat content may be 5-40% by weight. The pellets may be 2-15 mm. in diameter and 10-40 mm. long. The product may be agglomerated by compression. The CO 2  gas may be collected and used to protect the product when mixing and packaging. Examples relate to mixes for beef and chicken broth, mushroom soup, goulash base, white souce, puddings and imitation cream.