baber/WOPTO huggingface dataset:
Patent GB-1142865-A (GB)
Title: Preventing the ignition of explosive gas mixtures in acetylene gas systems
Inventor: BECKSTROEM JURGEN
IPC: F16L55/00
Filed: 1966-02-16
Abstract: 1,142,865. Pipe connections; valves. MESSER GRIESHEIM G.m.b.H. 16 Feb., 1966, No. 6789/66. Headings F2G and F2V. In a gas supply system comprising a supply line leading to at least one consumption point and, connected thereto, at least one acetylene containing cylinder, a pressure reducing valve is disposed in the line between the cylinder and consumption point and adjacent the cylinder there is an energy reducing throttle valve which is adapted to limit the pressure shocks and/or the quantity of gas flowing therethrough and/or the speed of the gas to a value at which no compression heat leading to the decomposition of the gas is produced. There may be a non- return valve in the pipe and adjacent the cylinder and which is arranged to be pressed on to the seat thereof at least partially by the gas pressure prevailing in the pipe on removal of the cylinder when the latter is empty, and to be removed out of contact with the seat after connection of a full cylinder. The valves may be preceded or followed by filters. As shown, a shackle 20 with a clamp screw 24 secures the apparatus to the cylinder head 21 and the combined throttle valve and non-return valve comprises a cap 1 screwed on to a connector 2 which has a funnel-shaped opening 4 at the end of which is a bridge 6 formed with bores 5 and guiding the pin 8 of a disc 7 having a seal to close an inlet bore 11 and throttle apertures 26; the latter prevent complete shutting off of the gas when the disc is displaced to abut the surface of the opening 4. Insertion of the cap in the cylinder head causes the rod 12 to lift the disc from the flange 27. In modifications, (a) the non-return valve comprises a spring (32), Fig. 4 (not shown), supported at the respective ends thereof by a stationary disc (34) having bores (33) and a movable disc (36) formed with a bore (35) providing a seat for a ball-valve (37) on which acts a push rod (39), the throttle valve consisting of a cone (40) guided in the disc (34) and secured to a spring-biased diaphragm (41), and (b) a closure disc (66), Fig. 7 (not shown), is carried by a diaphragm (65) supported by a spring (67), the disc having on either side thereof seats (62), (63), a by-pass bore 71 connecting the throttle valve space (64) to an outlet 72 in which is a filter (73); a filter (76) is disposed in the inlet space (77).
Patent GB-589195-A (GB)
Title: Improvements in or relating to loudspeakers
IPC: H04R7/20
Filed: 1945-03-19
Abstract: 589,195. Diaphragms. FOUNTAIN, Ltd., G. R., and HOULGATE, H. J. March 19, 1945, No. 6814. [Class 40 (iv)] The flexible surround of the diaphragm of a cone loud-speaker has rigid members, preferably of thin sheet plastic, secured thereto leaving narrow internal and external peripheral portions uncovered, which portions act as simple hinges, reverse bulging of surround being thus prevented.
Patent GB-298850-A (GB)
Title: Improved saucer or tray
IPC: A47G19/22
Filed: 1928-03-05
Abstract: 298,850. Grõber, J., and Racke, A. March 5, 1928. Trays are provided with supporting - ridges b for cups, glasses, &c., radiating from the centre of a central concave well c, such ridges having the following features :-(1) a triangular shaped vertical crosssection, (2) a substantially horizontal upper edge, and (3) a base which tapers in width towards its outer end. The ribs may be mounted in a removable grate in the central well. Additional cavities f, h may be provided for a jug, sugar, a vessel for holding spoons, &c.
Patent GB-761658-A (GB)
Title: An improved receptacle for ashes
IPC: F24B13/00
Filed: 1953-03-13
Abstract: 761,658. Ash receptacles. THOMASSON, P. W. K. June 14, 1954 [March 13, 1953], No. 6930/53. Class 26. A domestic ash receptacle comprises a casing 1 having a side opening 3 for ashes, and an opening 9 in a lid 2 above the opening 3 for connexion with a suction cleaner, so that dust rising when ashes are shovelled into the receptacle will be drawn towards the opening 9. A hinged flap 4 with a cut-out 6 for a shovel handle closes the opening 3, and a false bottom 13 reduces the risk of hot ashes damaging the floor.
Patent GB-1450646-A (GB)
Title: Catalyst comprising acid-contacted mordenite and hyerocarbon  conversion process using said catalyst
IPC: C07C67/00
Filed: 1974-02-15
Abstract: 1450646 Acid-contacted mordenite SUN OIL CO 15 Feb 1974 [16 Feb 1973] 6970/74 Heading C1A An alumino-silicate zeolite, having a mordenite structure and containing less than 1 wt. per cent of cations of alkali metals and at least 0À05 wt. per cent of sulphur or nitrogen, is obtained by contacting a mordenite zeolite with a solution containing sulphate, nitrate or nitrite anions or a mixture thereof. The zeolite is preferably treated with sulphuric and/or nitric acid in aqueous solution, and, after being separated from the bulk of the acid, is heated to remove some of the water remaining in the zeolite, under conditions such that not more than 90% of the crystallinity (as measured by the crystallinity index) of the original mordenite is destroyed. The zeolite (which may be impregnated with a salt of a metal which is an hydrogenation catalyst, and which may be mixed with α-alumina and formed into pellets) may be used to catalyse the conversion of a hydrocarbon feed into an upgraded hydrocarbon product (preferably the conversion of n-pentane to isopentane).
Patent GB-1040133-A (GB)
Title: Improvements in fluid pressure boosters or servo motors
Inventor: FINEMAN HAROLD
IPC: F15B17/00
Filed: 1963-02-21
Abstract: 1,040,133. Pneumatic single stroke apparatus. GIRLING Ltd. Feb. 14, 1964 [Feb. 21, 1963], No. 6974/63. Heading F1P. [Also in Division G3] The housing, Fig. 2 (not shown) of a fluid pressure motor such as described in Specification 1,040,132 is constructed from a cylindrical body part having a radially outwardly extending flange 15 provided with angularly spaced axially extending notches 14 in which are received the radially extending tongues 18 of an end wall part 17, the two parts being maintained in assembled relationship by a circumferential member disposed between the tongues 18 and the flange 15 (Fig. 1 and 3, not shown).
Patent GB-658310-A (GB)
Title: Improvements in the method of manufacturing pirns for use in connection with the textile industry
IPC: B65H75/10
Filed: 1949-03-15
Abstract: 658,310. Pirns. SMITH, S. March 15, 1949, Nos. 7024 and 16904. [Class 120 (iii) ] [Also in Group XXII] A metal pirn having a tapered shank and a butt which is grooved to carry spring loops and is provided with a cylindrical liner, is formed on a rotary swaging machine from a metal tube. A tube of the diameter of the butt end of the required pirn is swaged to produce a tapered shank a which may also be corrugated. The butt is formed with grooves to receive spring loops c and is fitted with a cylindrical liner b held in position by turning-in the end of the butt as at a<1>, Fig. 1. Alternatively the end is turned-in for a distance sufficient to form an integral liner a<2>, Fig. 2. The end of the tube opposite the butt may be turned-in at a<3> for a distance of about an inch before swaging the tube to a tapered form on a mandrel of the size of the spindle on which the pirn is to be loaded. Alternatively a separate liner may be inserted at this end.
Patent GB-565141-A (GB)
Title: Improvements in or relating to dynamo electrical machines
IPC: H02K57/00
Filed: 1943-05-04
Abstract: 565,141. Dynamo-electric machines. WARDT, J. C. DE. May 4, 1943, No. 7040. [Class 35] A dynamo-electric machine, stated to deliver direct current when used as a generator and to operate from direct current when used as a motor, comprises stationary ring wound armatures F, F<SP>1</SP> located between magnet poles of opposite polarity and carried by wheels B, B<SP>1</SP> which are rotated at equal speeds in opposite directions by gearing D and differential coupling E. The polarity of the different magnets, which may be either permanent or electromagnets, is as shown and the inner armature may be omitted, the wheels carrying the poles then being provided with hubs or hollow central bosses to form complementary parts of a split magnetic yoke. Each armature winding comprises (a) short coils, Fig. 3, connected in series and arranged at points where the poles on opposite sides of the armature pass one another, and (b) longer coils arranged between the short coils and connected in series both with one another and the short coils. The direction of winding of the long coils is opposite to that of the short coils.
Patent GB-1040281-A (GB)
Title: Improvements in or relating to electromagnetically actuated reciprocating pumps
IPC: F04B17/04
Filed: 1963-02-21
Abstract: 1,040,281. Reciprocating pumps; hydraulic apparatus. FISHER GOVERNOR CO. Feb. 21, 1963 [May 14, 1962], No. 7041/63. Headings F1A and F1P. [Also in Division F2] A pump for actuating a control piston, e.g. for a valve (see Division F2), comprises a bucket 47 of magnetic material, e.g. a stainless steel, movable on its suction stroke by a solenoid 48 and on its delivery stroke by a spring 56. Solenoid 48 is supplied with alternating current, bucket 47 being drawn towards an axially adjustable core 58 of magnetic material at each half cycle. The pump is mounted in a reservoir 33 and draws through a bore in core 58. Delivery is effected via a check valve 52, a bypass valve 44 being held closed against a spring by a solenoid 59 during operation of the pump. A pressure relief valve 63 is provided in the delivery line. Fluctuations in delivery pressure are damped by a diaphragm loaded by air pressure. The bucket 47 is longitudinally grooved externally. The pump is rubber mounted to damp vibrations. In the embodiment shown, pumps 32 and 36 move a control piston 29 downwardly and upwardly, respectively, to operate a valve assembly 93, limit switches 70 and 75, respectively, being tripped at the end of each piston movement by a flange 79 on piston rod 78 to de-energise the pumps. A by-pass valve 44, 44<SP>1</SP> on each pump is held closed by a solenoid 59, 59<SP>1</SP> to lock piston 29 in position when the pumps are de-energised. A pressure-relief valve 64, 64<SP>1</SP> is provided in each pump delivery line. Indicator lamps 88, 88<SP>1</SP> are operated at the end of each piston movement. The position of the piston is also indicated by a washer 98 on the piston rod which is surrounded by a transparent housing. In the embodiment of Fig. 8, (not shown) pump 238 acts to move piston or diaphragm 235 upwardly against a spring 237. Alternatively, the pump may move the piston downwardly against a spring. Towards the end of the upward stoke the rise in pressure in pump delivery conduit 241 actuates a Bourdon tubeoperated switch 266 to de-energize the pump and light an indicator lamp 281, solenoid 261 controlling by-pass valve 263 remaining energized to lock piston 235 in position. On opening a switch 274, solenoid 261 is de-energized to permit the downward stroke of piston 235 by spring 237.
Patent GB-741883-A (GB)
Title: Electrical gate circuits
Inventor: NEWMAN EDWARD ARTHUR
IPC: H03K17/54
Filed: 1953-03-14
Abstract: 741,883. Discharge tube gating circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 5, 1954 [March 14, 1953], No. 7128/53. Class 40 (6). A gating circuit comprises a number of discharge tubes to the grids of which the signals to be gated are respectively applied the anodes and cathodes being connected in parallel to individual resistors and the potential of the commoned cathodes being held at a constant level by a catcher diode an output being derived from across the anode resistor. The Figure shows a coincidence or " and " gate circuit in which only when negative pulses are present simultaneously at all of the input terminals t1 ... t6 are all the tubes V1 ... V6 cut-off and an output signal provided at terminal t8. The cathode potential of the tubes V1 ... V6 is prevented from falling below earth potential by catcher diode D. In a modification, Fig. 2 (not shown), the diode is replaced by a triode tube connected between H.T.+ and the common cathode point and having its control grid earthed. The circuit may function as an " or " gate by regarding the input signals as positive pulses so that the output signal drops to its lower level when a positive pulse is present at any of the inputs. Specification 717,114, [Group XIX], is referred to.
Patent GB-688698-A (GB)
Title: Improvements in or relating to pipes, receivers and containers and the like
IPC: F16L9/18
Filed: 1950-03-22
Abstract: The revolving shell of a fertilizer granulator is lined with sheet rubber provided with longitudinal portions which are formed with cavities to which a fluctuating gas pressure is applied to flex the lining and prevent the adhesion of material.
Patent GB-491810-A (GB)
Title: Improvements in or relating to film-carriers for cinematograph projectors
IPC: G03B21/32
Filed: 1937-03-11
Abstract: 491,810. Kinematograph projectors MACKAY, T. W., and SMITH, R. A. N. March 11, 1937, No. 7149 [Class 97 (i)] Means for carrying end less films comprises a roc or tube A provided with adjustable brackets C removably securable tc the spool arms of a pro jector, and two brackets E adjustably mountec on the rod &c. A anc carrying pulleys or rollers F over which the film is wound. The roc &c. A may be in two parts connected by a screwed collar B, and the rollers F may be inde pendent rollers separated by independent flanges H.
Patent GB-793219-A (GB)
Title: Improvements in or relating to rotary hydraulic pumps
IPC: F01C1/352
Filed: 1956-03-07
Abstract: 793,219. Rotary pumps. LORENZETTI, L. March 7, 1956 [March 8, 1955], No. 7211/56. Class 110 (2). In a rotary pump of the outwardly - sliding diametral vane type, the vane 17, 18 is made of resilient material and is rotated about a fixed spindle 15 by an eccentrically-disposed rotor 8.
Patent GB-122345-A (GB)
Title: Improvements in Balancing Internal Combustion Engines.
Inventor: MOREN HUGO
IPC: F16F15/28
Filed: 1918-04-30
Abstract: 122,345. Moren, H. April 30, 1918 Driving-gear.-Balancing is effected by providing, in addition to the usual balance weights 7 which rotate with the cranks, reciprocating masses 8 which slide in guides 9. The masses have central recesses in which engage eccentrics 10 on the crank-shaft, the recesses being unsymmetrical as shown at 11.
Patent GB-650175-A (GB)
Title: Improvements relating to jigsaw puzzles
IPC: A63F9/10
Filed: 1948-03-09
Abstract: 650,175. Jig-saw puzzles. SAUNDERS, H. C. March 9, 1948, No. 7256. [Class 132 (iii)] An appliance for use when solving jig-saw puzzles comprises a pair of elements hinged bookwise, one element I comprising a container for loose pieces of the puzzle and having means for retaining the pieces therein, the other element 2 comprising a surface, having a surrounding wall on which to build up the picture. Both elements have sliding covers 11 and 14 to retain the pieces, each element being in the form of a shallow box as shown in Fig. 2. The slide 11 may be dispensed with if the slide 14 has a lid. The hinged parts may be separable.
Patent GB-687716-A (GB)
Title: Improvements in and relating to the manufacture of phenanthridine compounds
Inventor: WALLS LESLIE PERCY
Filed: 1949-03-17
Abstract: The invention comprises a quaternary salt of 2,7 - diamino - 9 - a  - thienylphenanthridine, e.g. 2,7 - diamino - 9 - a  - thienyl - 10 - methyl phenanthridinium bromide, which may be made by reacting thiophene-2-carboxylic acid chloride with 2 - amino - 4,41 - bis - carbethoxyamino-diphenyl to form 4,41-bis-carbethoxyamino-9-a -thienamidodiphenyl which is heated with phosphoryl chloride to effect ring closure and the 2,7-bis-carbethoxyamino-9-a -thienylphenanthridine so formed is converted to the quaternary ammonium salt and finally subjected to hydrolysis to remove the carbethoxy groups.  The thiophene-2-carboxylic acid may be obtained by treating 2-acetylthiophene with sodium hypochlorite solution on a steam bath.  An example is given.  Specifications 372,859, 511,353, 578,226, 587,673, 635,152, 666,876 and 679,128 are referred to.
Patent GB-355237-A (GB)
Title: Improvements in the cylinder-blocks of internal-combustion engines
IPC: F02F7/00
Filed: 1930-03-06
Abstract: 355,237. Cylinders. ARIEL WORKS, Ltd., SANGSTER, J. Y., and TURNER, E., Dale Works, Selly Oak, Birmingham. March 6, 1930, No. 7332. [Class 7 (ii).] In a four-cylinder air-cooled engine having its cylinders arranged in parallel pairs as described in Specification 330,231, [Class 7 (ii), Internalcombustion engines, Arrangement &c. of], the cylinder-block casting comprises, (a) the four cylinders and their cooling ribs a<3>, a<4>, (b) a base a<5> for attachment to the crank case, and, (c) housings b3, b4 for two parallel crank-shafts. The casting also includes a crown b on which the head is mounted. The housings b<3>, b4 may be annular.
Patent GB-253601-A (GB)
Title: Improvements in oxygen respiratory apparatus
IPC: A62B7/02
Filed: 1925-03-18
Abstract: 253,601. Hoff, C. von. March 18, 1925. Respirators. - An oxygen container 1 is connected to an aircirculating system 9, 14, 14<a>, including a mouth-piece 11 and a breathing-bag 16, and supplementary means 7 for admitting oxygen to the system is put into operation by suction caused by the main oxygen nozzle 5, or by respiration, or both. The device 7 is preferably arranged inside the bag 16 and operates on the collapse of the bag due to withdrawal of air. A pipe 17 with a non-return valve 18 connects the bag 16 either directly with the inhaling pipe 9 or through a second breathing bag 12 connected to the pipe. Additional oxygen may be admitted to the pipe 14 through a pipe 19 with a manuallyoperated valve 20. A scrubber 15 is placed between the mouth-piece and the bag 16, and the flow of air through the scrubber is automatically controlled by a spring-pressed throttle valve 24. Vitiated air is discharged through a relief valve 21, and carbon monoxide &c. is removed by a purifier 26.
Patent GB-656894-A (GB)
Title: Improvements in or relating to electrode structures for electron-discharge tubes and methods for their manufacture
IPC: H01J19/00
Filed: 1948-03-10
Abstract: 656,894. Making grids for electron discharge tubes. SPERRY CORPORATION. March 10, 1948, No. 7364. Convention date, April 10, 1947. [Class 83 (ii)] [Also in Group XL (a)] A grid structure for an electron discharge tube is made by impressing a series of indentations of graduated size on a long wire or strip, Fig. 1, and then winding this strip spirally upon itself from the end 85, so that smaller indentations nest within larger indentations to form the structure of Fig. 2 comprising a number of nested groups of V-shaped elements. The wound structure is then secured inside a retaining ring 110, which may alternatively be formed as an integral extension of the original strip of Fig. 1 and finally wrapped round the completed structure. The V-shaped elements may, alternatively, be U-shaped, elliptical, hyperbolic, &c. as in Fig. 3 (not shown). The use of strip combines the advantages of good heat dissipation, reduced interception of electrons, and mechanical strength.
Patent GB-766323-A (GB)
Title: Improvements in or relating to the preparation of fluorine-containing compounds
IPC: C07C17/093
Filed: 1955-03-16
Abstract: Fluorocarbons, e.g. tetrafluoroethylene, are made by heating carbon with a compound of the formula F2C=X, where X is sulphur or oxygen, at a temperature of at least 1500 DEG  C., preferably 2,500 DEG  to 4,000 DEG  C.  The process may suitably be carried out (a) by passing the vaporized compound F2C=X through a tube made of carbon or of other refractory material packed with carbon at a temperature of 1500 DEG C.; (b) by passing the compound F2C=X through a carbon are, or (c) when the starting material is a liquid, by submerging the carbon are in the liquid fluorine-containing compound.  The carbon are may suitably be operated at a current of 10 to 30 amps. at 10 to 50 volts. Preferably the hot reaction products are cooled rapidly to below 400 DEG  C., in less than 1 second and more preferably in 0.001 to 0.1 second.  Apparatus for carrying out the process by means of a carbon are and a flow sheet of the process which permits unreacted starting material and undesired fluorocarbon products to be recycled are described with reference to drawings.  Examples describe pyrolysis in a carbon are of (1) carbonyl fluoride (contaminated with phosgene and carbonyl chlorofluoride) to give tetrafluoroethylene, carbon tetrafluoride, dichlorodifluoromethane and chlorotrifluoromethane and (2) and (3) pure carbonyl fluoride to give tetrafluoroethylene, carbon tetrafluoride and hexafluoroethane. Specifications 760,657 and 766,324 are referred to.
Patent GB-484847-A (GB)
Title: Improvements in the process of producing butyl alcohol and acetone
IPC: C12P7/28
Filed: 1937-03-16
Abstract: In a process for producing butyl alcohol and acetone by fermentation by means of clostridium acetobutylicum and morphologically similar butanol-forming bacteria, degeneration of the bacteria used for starting the fermentation is prevented by heat treatment in a normal culture medium followed by further cultivation without heat treatment in a medium maintained at a pH above 7,1 by addition of alkali; these steps being repeated one or more times.  According to an example a culture of clostridium acetobutylicum in a potato mash is sealed in a tube by means of paraffin wax, heated for two minutes in boiling water, cooled, kept for two days at incubator temperature, and then further cultivated for 48 hours in a second tube in which calcium carbonate is added, this alternation being repeated 3 or 4 times. According to an example relating to the use of the culture a 6 DEG Balling potato mash having an initial acidity corresponding to 0,1 cc. N/1 NaOH per 20 cc. of mash, pH 5,92, is inoculated and kept for 72 hrs. at 37,5 C.  The fermented mash contains 2,05 per cent of solvents.
Patent GB-727702-A (GB)
Title: Variable output burner for liquid fuel with pressure pulverisation
IPC: F23D11/24
Filed: 1953-03-20
Abstract: 727,702. Liquid-fuel burners. CHARASSE, A. F. March 20, 1953 [May 13, 1952], No. 7740/53. Class.75 (1). An atomized liquid fuel burner comprises a swirl chamber 7 having tangential inlet passages 8, a valve member having two coaxial cylindrical parts 9, 12 of different diameter and a stem 10 screwthreaded into the burner head 2, e.g. into a sleeve 3 secured within the head 2, so that on rotation of the stem 10 the valve member moves axially to vary the cross-section of the fuel discharge orifice 14 and the effective total crosssection of the tangential inlet passages 8 simultaneously and in the same proportion. Liquid fuel is supplied through the burner tube 2* and gaps in a castellated flange 4 of the sleeve 3 to pass through gaps between the burner head 2 and the member 5 in which the swirl chamber 7 is formed (the head 2 having a cylindrical inner surface and the member 5 an external surface of square section) to pass thence through the passages 8 into the swirl chamber 7 to discharge through the orifice 14. The screw 10 is rotated by turning a tube 16 having a forked extension 17 engaging flat surfaces on the end 11 of the screw 10.