baber/WOPTO huggingface dataset:
Patent GB-743567-A (GB)
Title: Improvements in or relating to change-over valves for use in pneumatic systems for controlling, indicating or recording
IPC: F16K11/065
Filed: 1953-09-04
Abstract: 743,567. Fluid-pressure servomotor control systems; valves. FOXBORO CO. Sept. 4, 1953 [Sept. 9, 1952], No. 24517/53. Class 135. A change-over valve for use in a pneumatic controlling, indicating, or recording system comprises a base block 20, Fig. IV, having a series of passages therethrough, an intermediate block 21 non-rigidly mounted on the base block and provided with a series of passages alignable with the passages in block 20, and a sliding valve member 22 provided with one or more recesses in its undersurface so that by moving the member various passages can be interconnected or shut off. Block 21 is positioned on block 20 by interengaging slots and screws 35, 34, respectively, and valve member 22 is guided in its movement on block 21 by side plates 36. Projecting sealing rings surround the ends of the passages in the lower face of block 21 and provide a resilient mounting for block 21 on the base block. The various parts are pressed together by springs and pins 26 extending between a fixed bridge member 24 and recesses in the top face of member 22. The member 22 is moved by a lever 18 the end of which is provided with a slot 39 engaging over a pin in member 22, and the springs 26 give a toggle action to the lever. The valve is shown in Fig. VI incorporated in a pneumatic control system wherein flow through a conduit 56 is detected by an orifice plate, and the differential pressure across the latter is applied to a control unit 53 and also recorded by a bellows and pen unit 58. The output pressure from the control unit is recorded by a bellows and pen unit 62, is applied to a valve 55 which regulates the flow in line 56, and is also applied as a feedback to the control unit 53. A datum pressure is set by a unit 54 and applied through the change-over valve to the control unit 53. The unit 54 comprises a datum-setting, floating lever 66 which obturates a nozzle 70 supplied with pressure fluid from a line 72, and the output pressure from the unit is fed to control unit 53 and also reacts back on lever 66 through a bellows 69 connected thereto. In the right-hand position of the change-over valve, as shown in the Figure, valve 55 is controlled automatically by the flow in conduit 56. If the valve 22 is moved to its left-hand position, valve 55 is controlled solely manually from the datum-setting unit 54, and in the mid position of valve 22, valve 55 is sealed off from both manual and automatic control.
Patent GB-1275328-A (GB)
Title: Rocket levels for internal combustion engine valve actuator mechanisms
Inventor: THALER KONRAD
IPC: F01L1/053
Filed: 1970-05-21
Abstract: 1275328 Cam followers GENERAL MOTORS CORP 21 May 1970 [23 May 1969] 24591/70 Heading F2K [Also in Division F1] A rocker lever for I.C. engine valve gear is formed in two parts 14 and 20 to be mounted for relative angular movement on a rocker shaft 24. An hydraulic clearance adjuster 38 is interposed between the parts 14 and 20. The wrought or malleable iron part 14 is mounted by a bearing eye (22), Fig. 2 (not shown), on the shaft 24 between a pair of bearing eyes (32, 34) on the aluminium or aluminium alloy part 20 having a cam contacting seat 42 of wear resistant material.
Patent GB-460637-A (GB)
Title: Improvements in and relating to tobacco leaf stemming machines
IPC: A24B5/06
Filed: 1935-08-02
Abstract: In a tobacco-leaf stemming-machine having means for forwarding the leaves relatively to mechanism for stripping leaf portions from the stems, the stripping mechanism and its driving motor are mounted on a bracket which is pivotally supported so that it can be swung about its pivotal axis to carry the stripping mechanism into and out of its operative position.  The forwarding mechanism comprises endless cables having opposed runs between which the leaves are gripped and means are provided for adjusting the supporting sheaves of the cables in directions parallel to and/or perpendicular to the direction of travel of the opposed runs.  The machine embodying the invention is described in Specification 460,713.
Patent GB-838814-A (GB)
Title: An arrangement in coupling devices on tractors
IPC: A01B59/042
Filed: 1956-08-13
Abstract: 838,814. Vehicle couplings. BRUCE, A. G., V. Aug. 13, 1956 [Aug. 12, 1955; April 18, 1956], No. 24728/56. Class 103(5) A pair of coupling arms 1 pivoted to the tractor chassis at 34 are connected by adjustable chains 12 to the power-lift links 13 and are provided with uprights 16 housing pawls 17 which engage ratchet teeth 18 to retain the coupling arms 1 in a given position. Between the rear ends of the arms 1 is pivoted a coupling member 4 having aligned holes through which a spring-loaded coupling pin 11 passes to effect coupling. The pawls 17 are connected by cables so that the coupling operations may be effected by the driver from the tractor seat. The member 4 may be of arcuate shape and provided with holes through which a pin may be inserted to retain the trailed implement laterally offset and the member 4 may have arcuate extensions to fix it in a given angular position with respect to the arms 1.
Patent GB-928746-A (GB)
Title: Gas compression apparatus
IPC: F25B31/02
Filed: 1961-07-08
Abstract: 928,746. Refrigerant compressors. LEC REFRIGERATION Ltd., and E. J. TURNBULL. Aug. 16, 1961 [July 8, 1961], No. 24771/61. Class 8(1). A motor driven reciprocating refrigerant compressor unit is resiliently supported within a two-part casing 1, 2, Fig. 1, by at least three helical compression springs 27, Fig. 3, only one of which is shown, each secured at opposite ends to pads 26, 28 of resilient material, e.g., neoprene adjustably secured by a screw bolt 25, to a lug 22 welded to the compressor casing 1 and by a bolt 29 to the compressor casting 4. A flexible oil pick-up pipe 15 carried by the driving eccentric 13 delivers oil through grooves 23 and posts 24.
Patent GB-894431-A (GB)
Title: Improvements in or relating to slug and snail killing compositions
Inventor: ALBERICCI VICTOR JOHN
IPC: A01N25/00
Filed: 1957-08-06
Abstract: A dry metaldehyde composition comprises finely-divided metaldehyde in admixture with a high molecular weight fatty acid or casein (adhesive agent) and a dispersing agent, the last constituting up to 15% by weight of the total composition. Optionally, there may additionally be present a carbonate or bicarbonate together with a solid, water-soluble acid, e.g. p  citric acid, these serving to form carbon dioxide, bubbles of which assist the dispersion of the dry composition in water.  The dispersing agent may be anionic or non-ionic.
Patent GB-279409-A (GB)
Title: Improvements in smokers' ash trays and extinguishing devices
IPC: A24F19/14
Filed: 1927-09-21
Abstract: 279,409. Sklar, S. B. Oct. 22, 1926, [Convention date]. No Patent granted (Sealing fee not paid). Ash-trays.-An ash-tray 1 is provided with an extinguisher consisting of a water reservoir 3 closed by a concave or conical cover 4 resting on a spring 6 and having a central aperture 5 through which water is forced on the depression of the cover by the lighted end of a cigar or cigarette. The cover 4 is retained by a rim 7, and the edge of the tray is provided with depressions 2 for supporting cigars or cigarettes.
Patent GB-839761-A (GB)
Title: An improved valve for controlling the flow of fluids
IPC: F16K1/52
Filed: 1955-08-30
Abstract: 839,761. Valves. LEVEY, L. W. Aug. 20, 1956 [Aug. 30, 1955; Sept. 26, 1955], Nos. 24821/55 and 27340/55. Class 135. A liquid regulating device where control is effected by altering the length of restricted passageway around a plug member through which the liquid flows, comprises a substantially cylindrical valve housing 23 fitted with an inlet pipe 21 communicating with an axial bore 31 and an outlet pipe 22 leading from a longitudinal channel 35 in the valve chamber 32. The valve plug 42 has a neck 44, that seats on a gasket 38, a helical groove 43 and a tubular valve stem 48 which is secured in an axial passageway in the valve plug and passes through an axial opening in a screwed retaining plug 33. A control knob with an axial bore is fixed to the outer end of the stem and a radial pin 51 on the stem 48 is maintained in contact with a cam path 41 on top of the valve body by a spring 47 acting on the valve plug 42. Rotation of the stem is limited by studs 39, 40. In the closed position the pin 51 is adjacent stud 39 at the lowest part of the cam path and the neck 44 is spring-urged against the gasket 38 to form a positive closure; on opening the valve by anti-clockwise rotation of the control knob the pin 51 acting on the cam path 41 causes the plug to lift from its seat and allows liquid to flow from the inlet through groove 43 to the channel 35 and the outlet 22, the rate of flow being determined by the effective length of groove 43 through which liquid must flow. In the fully open position the bore 31 communicates directly with the outlet 22 because of an enlarged portion 52 of the groove 43. The lower end of the bore 31 acts as a dirt trap and is closed by a removable cap. In another embodiment the cam path 41 and the neck 44 are dispensed with and the bore 31 communicates with the groove 43 by a hole or groove in the base of the plug. The plug seats permanently on the gasket 38 and the channel 35 ends below the top of the plug.
Patent GB-976773-A (GB)
Title: Respirator valve mechanism
IPC: A62B7/08
Filed: 1963-06-24
Abstract: 976,773. Respiratory appliances. MINE SAFETY APPLIANCES CO. June 24, 1963 [June 26, 1962], No. 25010/63. Heading A5T. A valve housing, mounted on a support carrying an oxygen-generating canister and a breathing-bag, has connections to the canister and bag and also to a breathing-hose leading to a mask, while internal valves direct the flow of gas through the system. A hose from the mask is connected to an orifice 12, Fig. 4, and exhaled air, entering a chamber 24, passes through a flap valve 18 and outlet 8 to the purifying and oxygen-generating canister. It flows from the lower end of this into the breathing-bag and thence returns through a flexible connection 10, Fig. 5, to a chamber 25, from which it passes through a one-way valve 19 into the chamber 24 for subsequent inhalation through the hose connection 12, Fig. 4. If an excessive pressure builds up in the system a duct 31, Fig. 6, communicates the pressure to a spring-loaded diaphragm 35 which thereupon opens a valve 38 to vent the chamber 24 to atmosphere through an orifice 43. The latter may, however, be closed during testing by rotating a cup-shaped cover 45 to seal against a resilient ring 49. In order to provide for an instantaneous supply of oxygen, if the equipment is taken into use in an emergency, a housing 50, Fig. 5, is provided on one wall of the chamber 24 and receives an oxygen candle which, when held in position by a threaded annular member 56, presses against the stem of a valve 54. This opens the valve to provide communication with the chamber 24. The candle is ignited by striking a plate 64 which carries a firing pin 66.
Patent GB-156901-A (GB)
Title: Improvements in or relating to air-cooled internal combustion engines
IPC: F02F1/08
Filed: 1919-10-14
Abstract: 156,901. Wallwin, J. M. Oct. 14, 1919. Cylinders, cooling.-Annular discs c with internal flanges, which may be conical or slit, are pressed on to the outer walls of the cylinder. Reference has been directed by the Comptroller to Specifications 4556/97, 6592/99, and 129,007.
Patent GB-502534-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/56
Filed: 1937-09-15
Abstract: 502,534. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 15, 1937, No. 25097. Convention date, Sept. 15, 1936. [Class 39 (i)] An electric discharge device has a gas or vapour filling, a thermionic cathode 3 and a comparatively small control electrode 12 which is screened thermally and capacitively from the cathode and anode 2 by an auxiliary electrode 9, 10, the total area of the aperture or apertures 11 for the passage of the discharge in the part 9 of the auxiliary which screens the control electrode from the anode being made smaller than the total area of the aperture or apertures for the passage of the discharge in the part 10 of the electrode which screens the control electrode from the cathode, whereby efficient de-ionization is obtained. The parts. 9, 10 are carried by a cylinder 5 which surrounds the discharge space, and the upper part 9 may have a single aperture only. Alternatively, both may have single apertures of equal size and the one nearest the anode may be covered with wire gauze to reduce its effective area. The lead 13 for the control electrode is brought out through the side of electrode 5 and the envelope. Instead of the linear arrangement shown, the electrode may be concentric as in Specification 473,666. Specifications 445,593 and 444,362 also are referred to. The Specification as open to inspection under Sect. 91 includes also making the lower aperture smaller in area, or, if the apertures are equal, covering the lower one with wire gauze. The resistance in series with the auxiliary electrode is made much smaller than that in series with the control electrode. This subject-matter does not appear in the Specification as accepted.
Patent GB-1181162-A (GB)
Title: A new and improved Navigational Position Fixing Apparatus
IPC: G01S5/16
Filed: 1967-05-31
Abstract: 1,181,162. Photo-electric position finding. PLANET MINING CO. PTY. Ltd., and OFFSHORE DRILLERS PTY. Ltd. 31 May, 1967 [7 June, 1966; 16 Feb., 1967], No. 25097/67. Heading H4D. [Also in Division G2] The position of a station P is determined by radiating a rotating laser beam therefrom and differentially timing thereat reflexions or retransmissions from responder beacons at known positions. In the embodiments the laser beam originates in a helium-neon gas laser giving light of wavelength 6000 Š or higher and is fan-shaped in the vertical plane utilizing, e.g. fibre optics. A responder beacon may be a corner reflector (see Division G2) or a radio transmitter triggered on reception of the laser beam by a photo-diode to transmit a radio signal to P. A pulse train, e.g. 100 pulses per degree of laser beam rotation at P is gated by the beacon replies to give a visual digital display of the angle subtended at P by two beacons and a similar further angle affords position fixing. The angle values may be magnetically recorded for later charting. P may be a ship: an inertially stable platform is then provided.
Patent GB-425476-A (GB)
Title: Improvements in or relating to starting systems for internal combustion engines
IPC: F02N11/08
Filed: 1933-09-11
Abstract: 425,476. Starting prime movers. GENERAL ELECTRIC CO., Ltd., SAUNDERS, C. W., and ELLIS, G., Magnet House, Kingsway, London. Sept. 11, 1933, No. 25116. [Class 38 (iv)] [See also Group XXXVII] An internal-combustion engine 1 having a dynamo-electric machine 2 permanently coupled thereto, is started by supplying current first to the field 3 and then, after an interval, to the armature 4. When the switch 22 is closed, current is supplied from the battery 12 through the interlock contact 21, to the coil 17 and also the coil 24. The coil 17 closes contacts 16, thus completing a circuit through field 3, but the coil 24 only closes the switch 25 after an interval depending upon the time delay means 26. Switch 25 completes a circuit through coil 9, closing contacts 7 through which the armature 4 is supplied. Reference has been directed by the Comptroller to British Specifications 24810/05, [Class 38], and 145,095, [Class 38 (iv)], and U.S.A. Specification 1,861,149.
Patent GB-297966-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J9/08
Filed: 1927-09-23
Abstract: 297,966. Robinson, E. Y., and Metropolitan-Vickers Electrical Co., Ltd. Sept. 23, 1927. Vacuum tubes.-Indirectly-heated cathodes comprise a heater filament helically wound around and in contact with a rod or tube of refractory insulating material, an enclosing cathode tube spaced away from the heater and any associated insulating material at least for the major portion of the hot or active portion of the cathode, the return lead for the heater being brought outside the cathode tube, and means co-operating with one or both ends of the heater rod or tube and of the cathode tube to register and space them. In the construction shown in Fig. 1, the cathode comprises a metal tube 9 coated with oxides only along the part that lies within the grid 4, and a heater comprising a helical filament of tungsten, molybdenum or carbon wound on a rod 12 of porcelain or quartz. The tube 9 is supported by wires 10 sealed into the pinch and by wires 11 fused into a glass bead 7, 'and the rod 12 is supported by a tube 15 sealed into the pinch, while porcelain washers 14 space the tube from the rod, which is slidable in the washers. These may be secured by crimping the tube 9 as at 20, Fig. 3, and gaps 22 are formed in the tube to lessen conduction of heat to its ends and to provide an exit for one end 17 of the heating-filament. Instead of providing washers 14, the ends of the cathode tube may be flanged over to engage the rod 12 loosely. Further modifications consist in expanding the upper end of the tube 9 at 26, Fig; 5, to embrace a larger washer 14<a>, and in threading metal clips 29, Fig. 6, over the rod 12 to embrace the tube 9, to which they may be welded. The ends of the filament may be secured at 16 to the support tube 15 and to a wire fused in the bead 7, Fig. 1, or to clamping-rings 30, Fig. 8, placed on the rod 12. The anode and the grid may each be supported by a single wire 2 or 5, Fig 1, or by two such wires as shown in Fig. 8. In the latter construction a lead 33 for the heating current is welded to a wire 32 which supports the rod 12. In the construction shown in Fig. 10, all the vertical support wires are spaced by being threaded into perforations in a mica or like plate 35 which may be secured to the anode support wires 2 by welded wires 37. In the construction shown in Fig. 12, the tube 9 is supported by discs 39 carried by support wires 40 fused into the pinch. Fuse wires may be inserted between the ends of the heating-filament and the leading- in wires. Carbon-filament heaters may be made by winding a cellulose thread on an insulating rod and decarbonizing it, e.g. by heating to a red heat in powdered charcoal. Guard rings may be inserted in the rod as described in Specification 292,707 to prevent electrolysis occuring through the rod baneath the filament clamps.
Patent GB-325860-A (GB)
Title: Improvements relating to the production of hydrocyanic acid and/or unsaturated hydrocarbons
IPC: C01C3/02
Filed: 1928-09-03
Abstract: 325,860. Wheeler, T. S., and Imperial Chemical Industries, Ltd. Sept. 3, 1928. Hydrocyanic acid is prepared by subjecting to an arc or spark discharge a mixture of a hydrocarbon such as methane or of gases containing hydrocarbons such as coal gas, and nitrogen or ammonia, which has been preheated to a temperature of at least 800‹ C. Specification 294,494 is referred to.
Patent GB-243869-A (GB)
Title: Improvements in pins for fastening the hair, and for holding hair ornaments and the like
IPC: A45D8/06
Filed: 1924-10-23
Abstract: 243,869. Ellingham, E. H. Oct. 23, 1924. Hair-pins. - A hair-pin has a straight portion A, shoulders B, curved portions C terminating in a waist D, and straight end portions E which widen out from the waist D. The Provisional Specification also describes a pin in which the portions E point inwards, and states that the above-described formation may be made more than once on the same pin.
Patent GB-244871-A (GB)
Title: Improvements in or relating to contact drums for electric controllers
IPC: H01H19/56
Filed: 1924-10-24
Abstract: 244,871. Igranic Electric Co., Ltd., and Tubbs, C. F. Oct. 24, 1924. Regulating switches; contacts. - A contact drum for controllers is built up of a number of insulating discs 3 spaced apart by bars 10 which may pass through slots 7a in some of the discs, and at their ends fit into recesses 7b. The spacing bars carry screwed-on wiper contacts 2 electrically connected end-to-end by long thin bars 12 passing through slots 8 in one or more of the discs. Curved connectors 13 join contacts in the same space as required. All the discs are threaded on a square or polygonal spindle and a variety of assemblages can be obtained by varying the number and orientation of the discs and contacts.
Patent GB-1372877-A (GB)
Title: Elastomeric retro-reflective road surface marker
IPC: E01F9/07
Filed: 1971-09-07
Abstract: 1372877 Road surface markers MINNESOTA MINING & MFG CO 7 Sept 1971 25506/74 Divided out of 1372876 Heading E1G A deformable road surface marker comprises an elastomeric reflector portion upstanding from an elastomeric base, the reflector portion either consisting of, or carrying an adhered sheet of a retro-reflective structure as in Specification 1372876 comprising an elastomeric material having many hundreds of minute retro-reflective elements (such as glass beads) partially embedded in its surface, the surface of the structure being in the form of a plurality of depressions 26 to protect it from vehicle damage. The depressions may be formed by shaping reflective sheeting against a die surface and then curing the sheeting, or by vacuum-drawing sheeting into a mould cavity prior to filling with the elastomeric material of the marker body. As shown the whole marker is covered by a retro-reflective structure and is adhered to the road by mastic 27. Specification 1372878 is referred to.
Patent GB-808031-A (GB)
Title: Improvements in or relating to superheterodyne radio receivers
IPC: H03D7/10
Filed: 1956-08-21
Abstract: 808,031. Radio receivers. GENERAL ELECTRIC CO. Ltd., and DRYBROUGH, D. A. S. Aug. 20, 1957 [Aug. 21, 1956], No. 25546/56. Class 40 (5). The invention relates to superheterodyne radio receivers for receiving amplitude modulated signals in one frequency band and frequency-modulated signals in a higher band. According to the invention the valve used as the frequency changer for the amplitude modulated signals is used as an intermediate frequency amplifier for the frequency-modulated signals, the local oscillation injection grid being screened from the signal grid and being used for automatic gain control when the frequency modulation signals are being received. The circuit shown uses a triode-heptode frequency changer for A.M. signals, the local oscillator circuit 25, 28, 30 being tuned to provide a 470 kc/s. I.F. signal in the tuned output circuit 20. On switching over to F.M. reception a 10.7 Mc/s. I.F. signal derived from a further frequency changer which is brought into circuit by the switch is applied to the signal grid of the valve in place of the A.M. signal. A further contact 29 changes over, causing the local oscillator to be disabled by shunting it with a low-impedance circuit 31, 32 and connects the oscillator injection grid through a filter resistor 38 to a source of A.G.C. voltage derived from the ratio detector 33 of the F.M. channel. A 10.7 Mc/s. I.F. output is derived from a tuned circuit 21, the secondary winding of which is connected in series with the secondary winding of circuit 20 to the grid of a further valve acting as an I.F. amplifier for both signals.
Patent GB-963236-A (GB)
Title: Improvements in or relating to soil stabilisation
IPC: C09K17/12
Filed: 1962-07-03
Abstract: 963,236. Soil stabilization. MITCHELL CONSTRUCTION CO. Ltd., and T. J. O'BRIEN. June 26, 1963 [July 3, 1962], No. 25548/62. Heading E1F. The principal constituents of a grout for use in soil stabilization are water, bentonite clay, alkali silicate, and finely-ground basic blast furnace slag. The slag is in a proportion sufficient at least to react with the available silicate. Preferably the slag is by weight between 40 to 100% to the weight of the clay, whilst the silicate is sodium silicate and is present within 0À5 to 6% by weight of the water. A pestising agent, such as sodium phosphate, in a proportion within the same range as the silicate.