baber/WOPTO huggingface dataset:
Patent GB-883654-A (GB)
Title: Hydraulic servo steering systems
IPC: B62D5/06
Filed: 1958-01-22
Abstract: 883,654. Liquid-pressure engines. CENTRE DE RECHERCHES HYDRAULIQUES ET ELECTRIQUES. Jan. 22, 1958 [Jan. 30, 1957; Nov. 26, 1957], No. 2157/58. Class 69 (2). [Also in Group XXXI] In an hydraulic servo steering system a rotary hydraulic motor 1, having radially arranged cylinders is coupled to the ball-nut steering shaft 2 and controlled from a rotary distributer valve 171 located axially in the hydraulic motor and actuated as a result of reaction torque in the steering column. The motor 1 has a rotor 122 containing nine radial pistons 124, Fig. 3, carrying pairs of rollers 126 engaging eight cam faces 121 on the motor wall. Fluid supplied by and returned from the motor through passages 133, 139 is directed to the pistons 124 through radial passages 143, 156 according to the required direction of rotation. Supply and return lines 133, 139 are connected to passages 131, 136 in the rotary valve 171 through passages 135, 138 in a distribution sleeve 152. Relative rotation between the valve 171 coupled through splines 127 to the steering wheel and the rotor 122 coupled through splines 164 with the ball-nut steering shaft 2 controls distribution of fluid to actuate the various pistons 124 through passages 145, 148, 156, &c. Relative rotation between the valve member 171 and rotor 162 is limited by a spring-loaded abutment box 165, Fig. 4, in which vanes 168 on the valve 171 are engaged by spring-loaded plungers 166 held against walls 162 of the rotor 122. The arrangement also permits manual steering in the event of failure of the hydraulic system.
Patent GB-835914-A (GB)
Title: Improvements in or relating to sheet materials
IPC: D06M15/70
Filed: 1957-01-21
Abstract: 835,914. Coated fabrics. SNIA-VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA. Jan. 21, 1957 [Jan. 31, 1956], No. 2171/57. Drawings to Specification. Class 140. A sheet material comprises a base fabric, preferably woven, of thermoplastic synthetic linear polymers and a filling resin distributed above and around the threads of said fabric, said resin having an intrinsic rigidity as defined in the Specification not lower than <SP>1</SP>/ 12  and preferably of at least 1/ 4 , and the resultant material having a stiffness as defined in the Specification of at least 45 degrees and preferably of at least 60 degrees in both the longitudinal and transverse directions. Preferably the base fabric has the same characteristics in the longitudinal and transverse directions, in the case of a woven fabric the warp and weft are about equal in count, physico-chemical characteristies and number of turns in the yarns employed. Preferred base polymers are polyamides, polyesters, polymers and copolymers of acrylonitrile, polyvinyl chloride, polyvinyl alcohol and polyolefins. The filling resin is applied by conventional methods and its application is preferably stopped before the reticular structure of the fabric is concealed.
Patent GB-930527-A (GB)
Title: Improvements to luges and like sledges
IPC: B62B19/00
Filed: 1962-01-22
Abstract: 930,527. Sledges. ETABLISSEMENTS PLIANFER. Jan. 22, 1962 [Feb. 3, 1961; June 27, 1961], No. 2199/62. Class 108(1). A sledge comprises two tubular C-shaped members 4, which may form the runners or have runners detachably secured to them, pivotally attached to longitudinals 1 so that when the struts 5 are released the members 4 may be pivoted inwardly to collapse the sledge. The struts 5 comprise rods bent to U-shape the base of the U's being pivoted to a plate 6 and the lower ends of the free arms being bent inwardly to engage holes in the members 7. The member 8 slidable along the struts releasably retains them in position. When the struts 5 are released from the members 7 the plate 6 may be rotated so that the struts lie longitudinally of the sledge.
Patent GB-112341-A (GB)
Title: Improvements in and relating to the Manufacture of Composition Fuel.
Inventor: HOPKINS CHARLES THOMAS
IPC: C10L5/08
Filed: 1917-02-14
Abstract: 112,341. Hopkins, C. T. Feb. 14, 1917. Addition to 14771/15, [Class 50, Fuel, Manufacture of]. Manures.-The mixture of coal, soot, and other materials described in the parent Specification is made sufficiently liquid with water to cause the mixture to separate into three portions on standing, namely, a floating scum, a liquid holding various substances in solution and suspension, and a sediment. The liquid portion is drained off and allowed to stand until the finer suspended substances have separated. The clear liquid left can be used as a fertilizer.
Patent GB-1456274-A (GB)
Title: Pressure equalizing device for hydraulic systems
IPC: B60T11/18
Filed: 1974-01-17
Abstract: 1456274 Hydraulic accumulators G & O Mfg CO 17 Jan 1974 [19 Nov 1973] 2306/74 Heading F1D [Also in Division F2] A pressure stabilizing hydraulic accumulator 10 comprises a housing 40 with inlet and outlet ports 72, 74 and a slidable piston 48 separating a chamber 42 between the ports 72, 74 and a sealed chamber 44 containing an elastomeric member 50, a quantity of liquid 52 and air 54. The device 10 is effective to reduce pressure fluctuations in a vehicle hydraulic braking system (see Division F2) and has heat dissipating fins 62, 62'.
Patent GB-162378-A (GB)
Title: Improvements in variable speed power transmission gear
IPC: B62M25/00
Filed: 1920-01-27
Abstract: 162,378. Taylor, r. D. G. Jan. 27, 1920. Expanding pulley gearing comprises driving and driven pulleys each with a fixed flange 1, Fig. 2, and a movable flange 2, the flanges 2 being movable in unison by spring means. The wedging of the belt together with the action of springs 23 tends to separate the flanges. The flanges 2 are .thrust inwards by turning cams 3 relatively to fixed cams 6. Each cam 3 is connected by a crank arm 8 and spring rod 9 to a crank arm 11 controlled by hand. Each rod 9 comprises a spring 14, Fig. 4, which acts when the rod is in tension, the rod acting positively when in compression. Another pair of rods 9<a> may be used to balance the thrust upon the cams 3 in which the springs 14<a> act when the rods are in compression. Crank arms 11 of different lengths may be used to keep the 'belt in tension. Specification 142,742 is referred to.
Patent GB-192602-A (GB)
Title: Improvements in and relating to water cocks
IPC: F16K43/00
Filed: 1922-01-27
Abstract: 192,602. Thomas, W. J. Jan. 27, 1922. Plug cocks; valves fitted with independently actuated supplementary valves.-A ported plug cock for interposition between an ordinary drawoff tap, such as a, and the supply pipe comprises an axially-disposed plug f which is formed with a socket to receive the spigot h of the front tap, and the casing b of the plug has a screwed spigot c fitting the usual supply pipe socket. The plug cock is opened and closed by a limited angular movement using the body of the front tap as a handle. The plug is forwardly convergent, as shown, and is closed at its base f<1> and subject to the water pressure. The ported shell e is carried by a disc d screwed into an enlarged casing b ; a recess m engaged by a pin l on the plug limits the movements of the plug to the fully open and closed positions, respectively. The joint between the tap and cock is made by a ring j and washers k; the conjunction with marks on the disc d, indicates the open and closed positions of the cock. According to the Provisional Specification, the plug cock may be constructed and employed as a separate draw-off cock.
Patent GB-501864-A (GB)
Title: Improvements in or relating to sleeve valves for two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1938-01-26
Abstract: 501,864. Valves. HOWALD, W. Jan. 26, 1938, No. 2553. Convention date, Jan. 27, 1937. [Class 7 (vi)] A sleeve valve for two - stroke engines controlling with its upper edge inlet or exhaust ports in the cylinder is so arranged that, when the piston is in its upper deadcentre position, the rubbing surfaces of the cylinder and sleeve valve are both screened from direct contact with the combustion gases. Fig. 3 shows a section of half a cylinder with the sleeve valve 2 working in a recessed part of the cylinder 1, so that the rubbing surfaces U<1> and U<2> are screened by the piston 4 from the hot gases. The upper edge of the valve controls exhaust ports A, and ports D in the valve control scavenging-ports B and charging-ports B<1>. Alternatively, the upper edge of the valve may control ports used for both scavenging and charging, while the valve ports D control two rows of exhaust ports, the preliminary exhaust passing to a turbine. Fig. 6 shows the piston 4 fitted with a wide upper packing-ring 15, which is not split, but arranged to have radial play, its rear surface being machined down as shown to afford resilience. In a modification, the ring 15 is formed with a resilient lip at its lower edge also. In cases where the upper ring 15 passes entirely above the shoulder S on the cylinder, the second ring is also made entire and with radial play. The upper end of the sleeve valve and tho cylinder walls may be tapered slightly inwards to allow for heat expansion. The valve, cylinder, and piston rings may be of steel with the rubbing surfaces hardened by nitrogenizing or chrome hardening; or the valve may be made of aluminium, copper, or nickel alloys; or the valve and cylinder may be of steel coated with such alloys ; or the piston-rings may be of hardened beryllium bronze or of steel coated therewith. Specification 462,427 is referred to.
Patent GB-538656-A (GB)
Title: Improvements in or relating to upright pianos
IPC: G10C3/06
Filed: 1940-02-09
Abstract: 538,656. Pianofortes. CHALLEN & SON, Ltd., C. H., and EVANS, W. Feb. 9, 1940, No. 2566. [Class 88 (ii)] In upright pianos having an auxiliary tone chamber extending rearwardly and horizontally from the upper part of the back of the piano, a stout cross-board 19 at the front of the chamber is arranged to abut flat against the crossmember 15 at the top of the piano back and is clamped in position as by finger bolts 20. The peripheral wall of the tone chamber extends from the ends of the cross-board and operates as a sound reflector and resonator. As shown in Fig. 5, the top of the chamber may constitute a rigidly secured soundboard, the bottom being open, or, as shown in Fig. 6, both the top and the bottom may be fitted with rigidly secured soundboards 12, 42, or the bottom may have a rigidly secured soundboard and the top be closed by a hinged lid. The soundboard or soundboards may be connected with the main soundboard 16 as by quadrant arms 32. The tone chamber may be shaped to correspond with the convention shape of the back part of a grand piano and be fitted with a support or leg 28 detachably connected to a stout timber filling- piece at the bottom rear part of the chamber. The cross-member 15 has dowel pins 24 to enter holes in the cross-board 19. Specification 491,985 is referred to.
Patent GB-1030431-A (GB)
Title: Combustion systems for tower-type hot blast stoves
IPC: C21B9/00
Filed: 1963-01-22
Abstract: 1,030,431. Gas burners. HEINRICH KOPPERS G.m.b.H. Jan. 22, 1963 [Feb. 27, 1962], No. 2654/63. Heading F4T. A combustion system for hot blast stoves comprises a row of vertical, parallel, spacedapart refractory partitions 8 disposed at the bottom of a combustion chamber and extending over the cross-section thereof and bounding alternate air and gas chambers 10, 11, which are connected to a combustion air supply 4, and a gas supply 5 respectively, said air and gas chambers terminating in a number of air and gas mixing nozzles 13 disposed above the partitions 8 and extending over substantially the whole cross-section of the combustion chamber. The partitions 8 are disposed in pairs upon walls 9 having inclined upper edges, air chambers 10 being defined between partitions disposed upon the same wall 9, and gas chambers 10 being defined by adjacent partitions 8 positioned on adjacent walls 9. Transverse rods or partitions 15 may be provided to improve distribution of gas and air within their respective chambers. The nozzles may be formed by interchangeable longitudinal walls 12 and transverse walls 14, or may comprise detachable nozzle units, Figs. 5, 6 (not shown). In a further embodiment, Fig. 4 (not shown), the air and gas ducts 6, 7 are separated by a vertical wall 9a above which are positioned parallel partitions 8a defining air and gas chambers, the duct 6 having an inlet into each gas chamber and the duct 7 having an inlet into each air chamber.
Patent GB-990140-A (GB)
Title: Outsert or label applying apparatus
Inventor: BARR ROBERT ALAN
IPC: B65C9/18
Filed: 1963-01-22
Abstract: 990,140. Adhesive applying apparatus. MIDLAND-ROSS CORPORATION. Jan. 22,1963, No. 2656/63. Heading D1L. [Also in Divisions B5 and B8] In a labelling machine (Division B8) the adhesive applicator 74 melts a strip of adhesive 76 in the form of a rope or cord fed from a reel 75, and ejects it from a nozzle 50, in liquid form, on to the edge of a label strip.
Patent GB-396094-A (GB)
Title: Improvements in or relating to step-by-step switches
IPC: H01H67/06
Filed: 1932-01-29
Abstract: 396,094. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd., SMITH, C. P., and NEWTON, G., Connaught House, Aldwych, London. Jan. 29, 1932, No. 2685. [Class 40 (iv).] To ensure reliable operation of a switch stepped by a self-interrupting magnet, a second interrupter is connected in series with the magnet interrupter and maintains the magnet circuit open substantially throughout the travel of the wipers during a step. As described, the second interrupter 14, 15 is controlled by the holding pawl 13 and as its presence tends to slow the switch, it is shunted by a resistance, condenser or rectifier (Fig. 2) to maintain a small ineffective current through the magnet 3 or to modify the rate of growth or decay of current in the circuit. The magnet interrupter 8, 11 may, in some switches, momentarily re-make the magnet circuit before it is opened by the second interrupter. The magnet interrupter 8, 11 and if desired the interrupter 14, 15, is adjustable. One contact comprises an adjustable screw 8 carried by a stiff spring 7 and locked by a spring 9, the other contact being carried by a light spring 11 operated by a striker 12 on the armature 4.
Patent GB-744046-A (GB)
Title: Coupling for mine air conduits and similar pipes of large diameter
IPC: F16L23/06
Filed: 1952-02-01
Abstract: 744,046. Band clips. NATTER, M. Feb. 1, 1952, No. 2691/52. Class 44. [Also in Group XXVIII] Rings 4, 5, Fig. 1, connected to the ends of pipes 1, 2 have rearconical faces 6 and are embraced by a flexible, channel-section, split clamping-member 11 having conical flanges 12, one free end of the member 11 being secured to a pedestal 15 to which the hand lever 13 of a toggle device is connected and the other free end carrying an abutment 21 having notches 18, 19 for a stirrup 17 connected to the lever 13. The stirrup 17 engages a notch 18 or 19 according to whether the pipes are coupled or the member 11 is being carried by one pipe end with the pipes uncoupled. The rings 4, 5 are of channel-section received on and welded to beads 3 on the pipes.
Patent GB-1031371-A (GB)
Title: Production of zirconium and silicon tetrahalides
Inventor: CALLOW ALAN EDWARD
IPC: C22B34/14
Filed: 1962-01-24
Abstract: Zirconia-silica material is halogenated in a fluidized bed in the presence of a reducing agent and a potassium halide, forming zirconium tetrahalide and silicon tetrahalide which are recovered from the reaction gases.  The material may be zircon ZrSiO4; halogen includes Cl, Br, I, but not F.  The bed particle size may be 50-2000 m .  The reducing agent may be gaseous, e.g. CO; or a fine solid, e.g. C as coke whose particles are of at least twice the diameter of the material particles.  The potassium halide, e.g. KCl, desirably has weight 0.1-5% of that of the zirconia-silica material and reducing agent; it may be introduced by treating the material with a solution of the halide and drying; introducing particulate solid halide into halogen feed; or introducing halide, reducing agent and material into the downward limb of a two-limb fluidized bed reactor. The process temperature is 900-1400 DEG  C.; additional heat may, if necessary, be provided by burning an excess of reducing agent in air, or oxygen in the reactor, or by reaction of materials with halogen, or by preheating the reactants or externally heating the reactor. Halogen with or without another gas which may be preheated is introduced into the bed through a number of apertures so that the pressure drop across the apertures is at least half, and preferably equal to, the pressure drop across the bed.  The emergent gases are passed through a separator to remove entrained particles and are then cooled; the zirconium tetrahalide condenses first and the silicon tetrahalide subsequently.  The condensed tetrahalides may be purified, e.g. by distillation.
Patent GB-158510-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J9/38
Filed: 1921-01-20
Abstract: 158,510. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Jan. 22, 1920, [Convention date]. Vacuum tubes.-Traces of gas, such as oxygen, nitrogen, carbonic oxide, or hydrogen, are removed from gas-filled or vacuum discharge lamps or thermionic valves by heating a nitrogen-compound of an alkali- or alkaline-earth metal, such as barium, strontium, or calcium nitride, or azide, the nitrogen evolved from the compound being evacuated. Specifications 1218/13 and 100,387, [Class 8 (i), Air and gases, Compressing &c.], are referred to.
Patent GB-555739-A (GB)
Title: Improvements in and relating to current transformers
IPC: H01F38/28
Filed: 1942-03-02
Abstract: 555,739. Transformers. HOBSON, A., and SMITH & CO. (TRANSFORMERS), Ltd., F. C. March 2, 1942, No. 2741. [Class 38 (ii)] Phase angle and ratio errors are eliminated from a current transformer comprising a primary 1 and secondary 3 on a core 2 by injecting into the secondary circuit a voltage derived from a secondary 5 on the core 6 of a compensating transformer which is worked at all times below saturation and is excited by the current in the primary 1. This voltage, which is proportional to the flux in the core 6, is controlled by a tertiary 7 across which is connected an impedance 8.
Patent GB-1373425-A (GB)
Title: Thread winding devices
IPC: B65H54/28
Filed: 1972-01-20
Abstract: 1373425 Traversing device for yarn winding HEBERLEIN & CO AG 20 Jan 1972 [12 Feb 1971] 2793/72 Heading D1J A thread winding device has a thread guide bar 1 that is mounted for axial reciprocating movement with respect to a freely suspended frame 8, there being resilient means so disposed on the guide bar 1 or on the frame 8 as to take up at least part of the energy due to the movement of the guide bar in one direction and contribute to the acceleration of the guide bar in the opposite direction. In the drawing the bar 1 is carried by a bearing block 3 that has a weight 4 engaging a groove 6 in a rotatable drum. The block 3 carries rubber buffers 7a, 7b that strike against the frame 8, suspended at 9, at the stroke ends. In a modified construction the buffers 7a, 7b are carried by the frame 8. The rubber buffers may be replaced by springs or a compressible gas. According to the description only one resilient member may be provided which, with corresponding modification of the frame 8 or the bar 1, serves the same function.
Patent GB-1477671-A (GB)
Title: Production control system
IPC: G06Q10/06
Filed: 1974-05-28
Abstract: 1477671 Data processing E YAMADA 28 May 1974 [28 May 1973] 02834/74 Heading G4A Data concerning the different operations required in a manufacturing process are entered in a computer for processing to form a simulation work chart representing the process as simulated by the input data. The simulation chart data is also produced in the form of a punched tape which is used as a computer input whereby the chart; can be modified by entry of additional data from a keyboard to produce a final, practical chart and punched tape. The punched tape corresponding to the practical chart may be modified, as with the simulationchart tape, by additional information entered from the keyboard and obtained from practical experience of running the process.
Patent GB-113650-A (GB)
Title: Improvements in Camp-stools.
Inventor: PLUMB JAMES PETER
IPC: A45B5/00
Filed: 1917-02-26
Abstract: 113,650. Plumb, J. P. Feb. 26, 1917. Folding and collapsible seats.-A camp stool which may be converted into a pair of walking sticks comprises a single member a which is connected by a hook d and eye e to a pair of pivoted members b<1>, b<2>. A detachable triangular seat having a hook h and loops g is connected to the tops of the legs.
Patent GB-269994-A (GB)
Title: Process of coking coal
IPC: C10B21/20
Filed: 1926-02-01
Abstract: 269,994. Fairweather, H. G. C., (Urbana Coke Corporation). Feb. 1, 1926. Coking processes.-Coal is coked by heating it out of contact with air by forcing a heated fluid, e.g. steam, therethrough only until the temperature of the fuel is below but near that at which it becomes viscous, then raising the temperature until the fuel which is maintained quiescent becomes pasty throughout, and finally raising the mass to a coking temperature. The preliminary heating is conducted at about 300‹ C., in the secondary reaction which is largely an exothermic one sufficient hea.t is added to bring the temperature to about 400‹ C., while the final coking takes place about 750‹ C. Specifications 171,203, 217,554, 232,358, 236,151, 244,337, 249,886, and 270,003 are referred to.
Patent GB-1019048-A (GB)
IPC: E21F13/08
Filed: 1964-01-23
Abstract: 1,019,048. Advancing mine roof supports. A. HAARMANN. Jan. 23, 1964 [Jan. 25, 1963], No. 2894/64. Heading E1E. In an advancing mine roof support particularly for inclined seams a floor plate 2 carrying four props 3 is guided against tilting or slipping down the incline during advance by the arms 11, 12 of a spring steel stirrup 9 pivoted to a conveyer or rail 8, the arms 11, 12 passing through holes in guide plates 15, 16 on the plate 2. The support is advanced by a ram 7 connected to the conveyer 8. The yoke 10 of the stirrup engages eyes 13, 14 on the conveyer, the lower eye 13 being slotted to allow angular displacement between the conveyer and yoke. A fifth prop 6 is connected by rods 4 to the plate 2. The height of the plates 15, 16 may be relatively adjusted to allow for the inclination between the plate 2 and conveyer 8. Alternatively the arms 11, 12 may be twisted relatively to each other.
Patent GB-981386-A (GB)
Title: Production of casting moulds
Inventor: BAUER FERDINAND
IPC: B22D7/10
Filed: 1963-01-23
Abstract: 981,386. Coating and lining moulds and cores. FOSECO INTERNATIONAL Ltd. Dec. 9, 1963 [Jan. 23, 1963], No. 2929/63. Addition to 930,732. Heading B3F. In a method of lining a mould head with a liner made up of slabs, the slabs are supported in position during fixing by a collapsible jig which prevents the slabs falling inwardly and is afterwards collapsed and withdrawn. The jig comprises plates 49, 50 on which the slabs are supported and spring-loaded buttress members 44 which engage the faces of the slabs to prevent them falling inwardly, all supported on arms 35 pivotally supported from a cross beam 8. The buttress assemblies &c. are collapsible inwardly by vertical movement of a rod 27 by means of a handle 28. In a modification, Fig. 5, the buttress members 77 pivot downwardly under the action of gravity to support the slabs.