baber/WOPTO huggingface dataset:
Patent GB-1379942-A (GB)
Title: System for eroding solids with a cavitating liquid jet
IPC: E02F3/92
Filed: 1972-08-23
Abstract: 1379942 Nozzles HYDRONAUTICS Inc 23 Aug 1972 [26 Aug 1971] 39216/72 Heading B2F [Also in Division El] A jetting apparatus in which a liquid jet 24 is forced from a restricted orifice 18 at a pressure at which vapour cavities form in the jet is operated under conditions whereby the jet is surrounded by a liquid medium to avoid the reduction and/or collapse of the cavities. Jetting liquid, preferably water, is supplied at 14 and its velocity is increased by both a contracting interior surface 16 and an adjustable rod 20, until its pressure is below the vapour pressure of the water and cavities form. In the embodiment shown the cavitating jet is surrounded by liquid 46 ejected from an annular orifice 40 at a much lower rate than the jet, to prevent the admission of air to the jet. In other embodiments: a flexible skirt is arranged around the orifice to contain a body of liquid (Fig. 3, not shown); or the whole apparatus is submerged for use (Fig. I, not shown).
Patent GB-1368099-A (GB)
Title: Drying of webs of material
IPC: F26B13/12
Filed: 1971-08-23
Abstract: 1368099 Drying webs RIMAR SpA 23 Aug 1971 [22 Aug 1970] 39402/71 Heading F4G. In a perforated suction drum dryer, a web 2 is shifted relative to the drum by rotated rollers 5 (or a non-rotated wire or rod) so that different areas of the web 2 overlie the perforations in the drum 1 in order to avoid irregular concentration of impregnating chemicals as the web dries. The drive to the rollers 5 is independent of the drive to the drum 1. The distance between the rollers 5 and the drum 1 may be varied.
Patent GB-1060291-A (GB)
Title: Improvements in and relating to tape readers
Inventor: GARDE LAWRENCE
IPC: G06K13/20
Filed: 1961-11-06
Abstract: 1,060,291. Feeding record tapes. ASSOCIATED AUTOMATION Ltd. Feb. 5, 1963 [Nov. 6, 1961], No. 39594/61. Heading G5R. [Also in Divisions F2 and H3] A solenoid in the drive circuit of a tapereader is operated by a transistor and in order to make the operation or release more rapid a choke is connected to the solenoid to provide an aiding or opposing e.m.f. during switching. Thus, in Fig. 2, TR2 is normally conducting and current flows in a choke L. To operate the brake solenoid B, TR2 is cut-off and TR1 rendered conducting. TR1 takes less current than TR2 so that the decreasing current produces an e.m.f. across the choke such as to speed the operation of the solenoid. Similarly when the conducting states of the transistors are again reversed the increase in current in the choke produces an e.m.f. in the opposite direction to speed its restoration of the solenoid. In Fig. 2 (not shown) driving transistors (TR4), (TR5) feed TR1 and TR2 to operate the brake and Zener diodes are connected across TR1 and TR2 to limit the voltage thereacross. In addition a clutch is operated by a single transistor (TR3) but could alternatively be connected in a circuit similar to the brake solenoid circuit. Control of the circuit is effected by photoelectric apparatus in response to light passing through sprocket holes of the tape (Figs. 5 and 6, not shown).
Patent GB-925097-A (GB)
Title: Scrubbing of coal distillation gases
Inventor: DOERGES ALEXANDER
IPC: C10K1/10
Filed: 1960-11-18
Abstract: <PICT:0925097/III/1> A process for removing H2S and NH3 from gas comprises at least 3 scrubbing stages in the first of stage 1, H2S is selectively scrubbed out by ammonia liquid, in the second stage 2, NH3 and some H2S is scrubbed out by gas cooler condensate and in the third stage 3, the residual NH3 and some H2S is scrubbed out by softened water, the liquids used for scrubbing in the first and second stages being mixed after scrubbing and passed to an ammonia still 19, the liquid from the third stage being used for selectively scrubbing ammonia from the vapours from the ammonia still and then, after cooling, for scrubbing in the first stage.  The mixed scrubbing liquids from the first and second stages are heated in the heat exchanger 12 and enter the deacidizer 14, the acidic gases driven off passing to a saturator 26 and the effluent liquor into the lower part 19 of the ammonia still.  The gases and vapours not absorbed in the upper part of the ammonia still by the liquid from the third stage are passed into the lower part of the deacidifier 4.  Liquid from the upper part of the ammonia still may after withdrawal and cooling be in part returned to this section of the still to control the temperature therein and hence the strength of the ammonia liquor obtained.
Patent GB-1126680-A (GB)
Title: Treatment of soil
IPC: C05G3/90
Filed: 1967-08-30
Abstract: 1,126,680. Preventing nitrification in soil. AMERICAN CYANAMID CO. 30 Aug., 1967 [28 Sept., 1966], No. 39755/67. Heading C1B. Soil is treated with a trihalomethyl- 8-triazine of the formula wherein X is halogen. and R 1  and R 2  each is hydrogen,. amino, hydroxy, halogen,. alkyl, alkoxy or trihalomethyl. The triazine may be applied at 0À5-10 1b. per acre. It may be in the form of a solution, aqueous emulsion, or composition with a solid diluent or N fertilizer. The solvent may be chloroform, benzene, isopropanol, or aeetonitrile. The diluent may be attapulgite, bentonite, kaolinite, diatomaceous earth, ground corn cobs, talc, or fuller's earth. The N fertilizer may be manure, urea, ammonia, or ammonium nitrate, sulphate or phosphate and may contain. 0À5-10% of triazine (based on N content).
Patent GB-1235594-A (GB)
Title: Scaffolding assemblies
Inventor: COLAS FRANCOIS
IPC: E04G7/20
Filed: 1969-08-12
Abstract: 1,235,594. Scaffolding. CEGEDUR G.P. 12 Aug., 1969 [13 Aug., 1968], No. 40344/69. Heading E1S. [Also in Division F2] Vertically adjacent scaffolding members or frames are interconnected by tubular spigots E1 with longitudinally-extending raised portions (as shown, flanges) which engage the inner edges of polygonol (as shown, square) tubular upright a, b and are maintained in position by means associated with the uprights, e.g. transverse tubes c crimped to the uprights. The spigots may have thickened central portions (e3) (Fig. 4, not shown) to separate the uprights. Frames for vertical arrangement, Figs. 5, 6 and 11 (not shown) or for horizontal arrangement, Fig. 9 (not shown), which can be connected to other frames by such connections, are described, the frame (E8) of Fig. 11 being L-shaped to allow pedestrian passage at the bottom of a scaffold tower. Straight or bent tubes with end connectors, Figs. 7 and 10 (not shown) are also described.
Patent GB-1520000-A (GB)
Title: Plasma arc torches
IPC: H05H1/28
Filed: 1975-10-03
Abstract: 1520000 Plasma torch VSES N I PROEKTNOKONSTRUKT I TEKHNOLOGICHE INST ELEKTROSVAROCH OBORUDOV 3 Oct 1975 [10 Oct 1974 (2)] 40471/75 Heading H5H A plasma torch comprises two parts A and B detachably secured together in a fluid tight manner, the part A including an electrode holder 1, an electrode 2 with an active insert 3 mounted in the holder 1, a nozzle 4, a terminal 6 connected to the nozzle, an electrical insulator 7 between the holder 1 and nozzle 4, and passages 8, 9, 10,11 and 12 for plasma forming gas and coolant which terminate on a surface of part A which mates with a complementary surface of part B, and the part B including a terminal 16 for the electrode holder 1 and passageways 17, 18; 19, 20; 21, 22; 23, 24; 25, 26 for connection at the mating surfaces of the parts A and B to the corresponding passages 8, 9, 10, 11 and 12 of the part A. This arrangement enables the part A to be removed and replaced when it is worn simply by undoing nut 15. The nozzle 4 and electrode 2 are made of copper and the insert 3 is made of zirconium, tungsten, hafnium or alloys thereof. Passages 17, 18 and 8 cooperate for the supply of plasma gas to the torch. Passages 19, 20 and 9 cooperate to supply coolant (water) to the electrode 2 and passages 21, 22 and 10 cooperate to exhaust coolant from the electrode. Passages 23, 24 and 11 cooperate to supply coolant to nozzle 4 and passages 25, 26 and 12 cooperate to exhaust coolant from the nozzle 4. Fluid tight seals 13, 14 are provided between the mating surfaces of the parts A, B. Plasma forming gases may be compressed air, oxygen, carbon dioxide, argon, nitrogen, hydrogen, helium or mixtures thereof. The arc is initiated by an oscillator connected between the work 27 and the nozzle 4 via terminal 6. Once initiated the main arc is struck between the electrode insert 3 and the workpiece 27. The torch may operate under straight or reverse polarity. The plasma gas is given a vortex flow. Part B is held in a traversing mechanism. The specification gives dimensional criteria of the nozzle and electrode necessary for maximizing cutting speed when the torch is used for cutting. The insert 3 is inserted in a reentrant projection of the electrode 2 so that it may be efficiently cooled. Fins (Fig. 5, not shown) between the reentrant projection and the wall of the electrode 2 to improve cooling. The torch may be used for cutting metals on an automatic production line.
Patent GB-868263-A (GB)
Title: Improvements in or relating to pumps or circulators operable by wet stator or cannedelectric motors
Inventor: ARKLESS GEORGE FREDERICK
IPC: H02K5/128
Filed: 1958-12-16
Abstract: 868,263. Pump motors. WEIR Ltd., G. & J. Dec. 28, 1959 [Dec. 16, 1958], No. 40518/58. Class 35. Heat flow from a hot-liquid pump 2 to the driving-motor 4 is minimized by supporting the motor casing 7 on the pump back-plate 5 by means of a tubular pressurized casing 8 having a minimum clearance to the shaft 3. Lateral rigidity is provided by an outer guide tube 9 in which the motor may slide axially to accommodate thermal movements. The casing 8 may be detached from the pump back-plate or the motor casing or both so that the motor may be withdrawn. Cooling.-Cooling fluid is circulated within the motor casing by impeller 10, and passes through thrust bearing 11, bearing 13, the rotor gap, bearing 16, and thence through a tortuous path formed by baffles 19 in the space 18 between the motor stator and the casing 7, back to the impeller. Heat is withdrawn from the motor, and also from the sleeve 9 by cooling water flowing in a helical groove 20 between them. The water enters at 21 and leaves at 22, and is sealed in by toroidal rings 23, the helical land 24 also having a continuous rubber seal 25. Direct convection from the pump to the motor is prevented by insulating material 26.
Patent GB-888711-A (GB)
Title: Improvements in or relating to boilers
IPC: F24H1/44
Filed: 1960-11-25
Abstract: 888,711. Combined solid and liquid fuel fired stoves. FENDEL, J., FENDEL, A. and FENDEL, F. Nov. 25, 1960 [Dec. 2, 1959], No. 40527/60. Class 126 [Also in Group XIII] A water-heating boiler for solid or liquid fuel firing comprises a burner mounted in the boiler cover above a combustion chamber partly defined by an upright water-jacket and a waterconveying partition which separates the combustion chamber from a flue outlet approximately halfway up the rear wall of the boiler, an outlet above the partition for the passage of the combustion products of solid fuel firing being closable by a valve during liquid fuel firing and an outlet below the partition for the combustion products of liquid fuel firing being closable during solid fuel firing. As shown, a watercontaining partition 11 extending between the water-containing side walls of the boiler separates the combustion chamber 2 from a draught chamber 10 from which a damper-controlled flue outlet 14 leads through the rear wall 12 of the boiler. The nozzle of a burner 7 is located in the top 6 of the boiler in a chamber 8 which during solid fuel firing is closed by a damper 16, leaving an outlet 15 above the partition 11. An ash box 20 closes an outlet 17 below the partition. During liquid fuel firing, the outlet 15 is closed by the damper 16 and the ash box 20 is removed, combustion products passing down through the grate 9 and the outlet 17 below the partition to the flue outlet 14. In an alternative embodiment (not shown) the grate extends from front to back of the boiler, spaced from the bottom of the partition 11 to leave an outlet for the combustion products of liquid fuel firing which is closed by the solid fuel during solid fuel firing.
Patent GB-1251488-A (GB)
Title: A method of forming sheet or plate material
Inventor: WALLACE JOHN FREDERICK
IPC: B21D26/055
Filed: 1970-08-22
Abstract: 1,251,488. Forming metal; working at specified temperatures. PRESSED STEEL FISHER Ltd. 22 Aug., 1970, No. 40556/70. Headings B3Q and B3V. Apparatus for forming a superplastic alloy sheet 26 against a die 12 in an enclosure 11 having blank holding means 25 comprises a reservoir 14 containing a forming material 15 which is liquid at least at the forming temperature, a heater 29 for the material 15, a gas pressure supply 18 for expelling material from the reservoir into the enclosure 11, an overflow 20 for returning excess material 15 to the reservoir and a valve 19 for releasing gas pressure and allowing material 15 to flow back from the enclosure 11 to the reservoir. Thus after heating the sheet to the forming temperature, a partial vacuum set up by gravity-return of the material 15, which may be a low-melting-point alloy, oil or a salt, draws the sheet against the die. The forming action may be assisted by compressed-air supplied to a cover 27. Automatic blank loading, stripping and unloading devices may be provided and an air jet for cooling the work.
Patent GB-1105398-A (GB)
Title: Shaping hoses of elastomeric material
IPC: B29C61/06
Filed: 1966-09-13
Abstract: 1,105,398. Bending pipes. AMERICAN BILTRITE RUBBER CO. Inc. 13 Sept., 1966 [21 Feb., 1966], No. 40755/66. Heading BSA. Configured rubber hose is made from a straight length 10 thereof which is supported within a tube 12 to facilitate, by the admission of compressed air through a nozzle 13, the insertion therein of a straight length of flexible solid mandrel it, e.g. of lead or bendable alloy; the mandrel 11 is adjusted to extend a short distance beyond each end of the hose whereby, after removal of the assembly from tube 12, it is engaged by clamps or bending tools and the hose bent to a configuration, e.g. a U configuration (10) (Fig. 5, not shown) in which it is vulcanized, e.g. by heat of a gas oven for 30-40 minutes. The mandrel is subsequently removed after straightening thereof within the vulcanized tube (10<SP>1</SP>) (Fig. 2, not shown) between a fixed (14) and a retractable clamp (15). With hose of greater I.D. than <SP>5</SP>/ 16  inch, straightening of the mandrel may also be effected or completed by rolling between three co-operating rolls. The mandrel 11 is removed by melting or under applied tension with the assistance of compressed air applied between the mandrel and the hose which is supported against a fixed abutment. Water or other fluid pressure may alternatively be employed to facilitate insertion and removal of the mandrel.
Patent GB-997282-A (GB)
Title: Improvements in or relating to microwave frequency discriminators
Inventor: WILTSHIRE ALLAN STANLEY
IPC: H03D9/04
Filed: 1960-11-28
Abstract: 997, 282. Noise voltage measurement. JAMES SCOTT (ELECTRONIC ENGINEERING) Ltd. Nov. 27, 1961 [Nov. 28, 1960], No. 40798/60. Heading G1U. [Also in Division H3] A microwave frequency discriminator comprising a microwave bridge 1 with one arm connected to a cavity resonator 2 has its output arm connected to two phase sensitive detectors 11, 22 receiving oscillations in phase quadrature from the input arm. One detector 11 produces an output which through an amplifier and motor automatically tunes the cavity 2, as through a variable plunger, to the mean frequency of the input (frequency modulated by noise to be measured). The other detector 22, controls through an attentuator 31 a portion of the input signal, taken through a directional coupler 29 and 90 degrees phase shifter 35, and adds it through a directional coupler 34 to the output arm 6 together with an in-phase sample of the input wave, controlled through an attenuator 32 by the output of the other detector 11. The two quadrature components of the injected wave from the coupler 34 alter as necessary the phase of the combined output from arm 6 so that the means frequency of the input to detector 11 is stabilized at a value such that the D.C. output of phase detector 11 is nominally zero, but varies with frequency modulation of the input produced by noise. Alternatively, the input wave and output from the bridge may both be reduced to an intermediate frequency (I.F.) by a local oscillator before application to the detectors 11, 22. Further, the detected I.F. may be applied to a ferrite modulator at the input to the bridge, as automatic gain control. An attenuator and phase shifter in reference channel 13 may be used in setting up the circuit. In a modification the D.C. outputs of the two detectors are applied to ferrite modulators in two stub waveguides, spaced #/8 apart, connected to the impedance matching arm 3 of the bridge, to control the phase and mean frequency of the output. In the Provisional Specification the bridge 1 is formed by a 3db coupler. Specification 863,165 is referred to.
Patent GB-1305262-A (GB)
IPC: C07C11/08
Filed: 1970-08-25
Abstract: 1305262 Propylene and isobutylene GOODYEAR TIRE & RUBBER CO 25 Aug 1970 [25 Sept 1969] 40803/70 Heading C5E Propylene and isobutylene are produced by pyrolysing isobutane in the presence of a homogeneous catalyst. Suitable catalysts include H 2 S (which may. be introduced in the form of (NH 4 ) 2 S or NH 4 MS), alkyl mercaptans, alkyl sulphides, Br 2 , NH 4 Br, HBr, CH 2 Cl 2 , ammonium polysulphide, and reaction products of one mole of H 2 S with from 1-2 moles of an amine. Pyrolysis temperatures of 500-900‹ C. may be used, and a diluent may be present, e.g. steam, N 2  or CH 4 .
Patent GB-1278497-A (GB)
Title: Improvements in or relating to tunnelling machines
IPC: E21D9/10
Filed: 1969-08-15
Abstract: 1278497 Tunnelling machines K M TUNNELLING MACHINES Ltd and T E HORNCY 14 Aug 1970 [15 Aug 1969] 40970/69 Heading E1F A tunnelling machine comprises a shield 11 slidably supporting a body part which carries arms 38, the arms being rotatable about an axis extending longitudinally of the shield and being adjustable radially of the axis, and a cutting head 42 rotatably mounted on the arms. The body part is slid relative to the shield by a ram 26, and the arms are pivoted to a rotatably mounted shaft 30 and are moved by ram 39, the shaft 30 being rotated by a motor 31. A rotary hydraulic coupling 45 supplies fluid to the rams 39 and to a motor driving the cutting head. The shield 11 is advanced along the tunnel by rams (not shown) acting on a tunnel lining, and spoil is removed by a conveyor 46. In a second embodiment, Figs. 5 and 6 (not shown), the cutting head is slidably supported on the shaft 30 for radial movement relative to the axis. In a third embodiment, Figs. 7, 8 and 9 (not shown), which is similar to the second embodiment the ram 26 is replaced by two rams and the cutting head is moved radially of the shaft 30 by a single ram. A plurality of alternative shields having different diameters may be provided.
Patent GB-1088453-A (GB)
Title: Ever-ready case for photographic cameras
IPC: A45C11/38
Filed: 1964-10-08
Abstract: 1,088,453. Ever-ready cases. A. KRITZLER and H. KRITZLER. Oct. 8, 1964 [Aug. 8, 1964], No.40997/64. Heading G2A. An ever-ready case for a camera is constructed so that both the back and the front fold down. As shown, the main body part 10, to which is attached the carrying strap 40, holds the camera (shown in broken lines). The rear part 12 of the case is hinged to the base 24 of the body part 10 by a strip 22, and folds down into the open position shown. The front part 26 is attached by a similar strip to the base 24, and opens downwards as shown. Front part 26 carries a part 30 which, when the case is closed, covers the top of the camera, and also carries, as an extension of top part 30, a flap 32 which, in the closed position, fastens by a press stud 34 into the closed rear part 12.
Patent GB-1286881-A (GB)
Title: Improvements in or relating to icecream dispensers
IPC: A23G9/28
Filed: 1969-08-18
Abstract: 1286881 Reciprocating pumps HOLLSTEIN & FURMANN GmbH [trading as HOLLSTEIN & FURMANN GmbH KG] 18 Aug 1969 [19 Aug 1968 4 Feb 1969] 41049/69 Heading F1A An ice-cream dispenser comprises:- a housing forming a metering chamber with rigid walls including an end-wall which is stationary in use, a piston slidable in the chamber towards and away from the end-wall, an entrance port to the chamber at a location remote from the end-wall, the entrance port communicating with a source of ice-cream under pressure, an exit port proximal to the end-wall, the piston in a loading position being withdrawn from the end-wall to a position beyond the entrance port, means for reciprocating the piston between the loading position and an ejection position in which the piston is close to the normally stationary end-wall, and a valve to obstruct the exit port outside the chamber. Various embodiments are described in which the valve may be a slide valve actuated by the lever which moves the piston, a flap valve similarly actuated, a valve connected to the piston so that the outlet is opened only when the inlet is closed, or a pressureactuated valve. The end-wall may be adjustable in position, and/or the stroke of the piston may be curtailed by adjustable stops. The operation of the valve may be interrupted to allow continuous flow of ice-cream. An embodiment having two cylinders and pistons feeding a single supply nozzle is described.
Patent GB-928820-A (GB)
Title: Improvements in or relating to electrolytic capacitors and to electrolytes for use therein
IPC: H01G9/022
Filed: 1960-11-30
Abstract: 928,820. Capacitors; anodising aluminium and other metals. TELEGRAPH CONDENSER CO. Ltd. (Sprague Electric Co.). Nov. 30, 1960, No. 41124/60. Classes 37 and 41. An electrolytic capacitor has a cathode, an oxide coated anode of valve metal (e.g. aluminium, tantalum, niobium or their combinations), which may take the form of an etched foil; immersed in an electrolyte of which the solvent comprises a five-membered heterocyclic ring compound having an oxygen atom as one heteroatom ring member and a double bond oxygen atom attached to a carbon atom of the ring, and in which a hydrogen atom attached to a carbon atom of the ring may be substituted by a monovalent alkyl or arylkyl radical. The solvent may be propylene carbonate, gammavalerolactone, or butyrolactone either alone or mixed with other solvents, and the ionizable solute may be a substituted ammonium salt e.g. benzyl, triethyl ammonium chloride, phenyl dimethyl allyl ammonium iodide, or may be a condensed alkyl polyphosphate salt reacted from trimethylamine, phosphorus oxide and methanol for solution in the propylene carbonate electrolyte. Borates and phosphates may be added thereto.