baber/WOPTO huggingface dataset:
Patent GB-314120-A (GB)
Title: Improvements in or relating to fluid flow meters and valves
IPC: G01F7/00
Filed: 1928-03-23
Abstract: 314,120. Vickery, T. March 23, 1928. ' Liquid-meters.-A change over valve for use in installations using high and low reading fluid flow meters is fitted with a dashpot arranged sc that the initial down. ward movement is damped and is slower than the correspond ing damped fina upward movement and so that the re mainder of the valve movement is un damped. The valve member 11 is loaded by a weight 17 and is provided with tubular part 12 having tapered ports 14 with rectangular lower portions. The valve seat has ports 13 leading to a chamber 9 connected to the low reading meter so that when the valve is in its lowest position fluid entering at 7 passes exclusively to the smaller meter. As the valve rises the ports 13 are closed and the fluid flows through the connection 5 to the larger meter. The dashpot comprises a cup leather piston adapted to work in a cylinder 20 having two ports 21, 22 near its lowest end. After an initial movement of the piston, fluid passes through the port 21 and chamber 23 to the cylinder in which it is trapped when the piston passes the port 22, only escaping past the cup leather. The downward movement is retarded by the vacuum formed above the piston. To prevent the piston being held in its raised position a small hole may be formed in the upper part of the cylinder.
Patent GB-845014-A (GB)
Title: A new or improved immersion-responsive actuator for automatically inflatable lifesaving equipment
IPC: F16K31/00
Filed: 1957-03-19
Abstract: 845,014. Lifesaving appliances. FRANKENSTEIN & SONS (MANCHESTER) Ltd., P., SILVERSTONE, J., and WRIGHT, I. B. March 10, 1958 [March 19, 1957], No. 8903/57. Class 77. [Also in Groups XX, XXVII and XXIX]. An immersion-responsive actuator for a valve or other device comprises a mass of initially compressed porous material which swells on the absorption of free liquid to release a spring- loaded pin. As shown to automatically effect the release of compressed gas from a container 10, Fig. 1 to inflatable life-saving equipment, such as life jackets, dinghies or rafts, a plurality of washers 27 of, e.g. compressed methyl cellulose sponge which may be impregnated with a gasgenerated chemical or alternatively with a wetting agent, such as alkyl aryl sulphonate are mounted on a rod 28 in a body 13 screw-threadedly attached to an adaptor 11 connecting the container to the equipment. The rod 28 is formed with a head 30 which when the actuator is inoperative urges spring fingers 21 on a plate 22 abutting a shoulder 23 of the body into a recess 25 of a block 20 secured to a spring-loaded pin 15. On the actuator being immersed, ingress of water takes place through apertures 31 causing downward movement of the washers 27 and the head 30 to be removed from between the spring fingers 21. The spring-loaded pin is then released and either unseats a non-return valve closing the container or pierces a frangible diaphragm. To prevent undesired "firing" of the actuator a sleeve fitted over the lower part of the body is formed with apertures which may be brought into and out of register with the apertures 31. To permit of manual operation, the rod 28 is anchored to a cap 32 which is normally held on the body cap 26 by a circlip 33. On removing the cap 32 the spring-loaded pin 15 is released, the cap 32 if necessary being remotely removed by means of, e.g. a Bowden cable. In a modification, the spring fingers are replaced by a sleeve 38, Fig. 4, having slots 41 which co-operate with lugs 42 formed on the head 30 to hold a circlip 40 in a recess 43 in the block 20.
Patent GB-180810-A (GB)
Title: Improvements in and relating to grinding wheels and the like and in the manufacture tereof
IPC: B24D18/00
Filed: 1921-03-24
Abstract: 180,810. Blackham, H. March 24, 1921. Centrifugal machines ; moulding grinding wheels.-Blow-holes in grinding-wheels are avoided by rotating the material in a mould so as to consolidate it by centrifugal force from the periphery inwards, and air present being forced tcwards the centre, which is subsequently removed during drilling. The mould comprises a ring g having covers h of canvas, thin metal, &c., and is clamped to the rotating table a by means of a cover e secured by pivoted screws c and binding nuts c<1>. Alternatively, the cover e may be hinged to one or more of the screws c. The mould g is centred by dogs m, Fig. 3, adjustable in radial arms k.
Patent GB-1004672-A (GB)
Title: Self-locking nut
IPC: F16B39/286
Filed: 1962-03-09
Abstract: 1,004,672. Locking nuts. C. H. HANFLAND. March 9, 1962, No. 9078/62. Heading F2H. A lock-nut comprises a peripheral recess 1 and a slot 3 in the recess. The nut may be tightened by a spanner engaging the part 2a and locked by a second spanner turning the part 2b in the opposite direction. The slot may project axially beyond the recess, Fig. 2 (not shown), and the cast nut may be compressed, closing the slot or an additional slot and misaligning the threads to produce a locking effect. The top 5 may be smaller than the bottom 6, Fig. 3, and the threads may be offset laterally from the nut-axis. The top may have six sides and the bottom twelve, and the slot may taper, Fig. 5 (not shown). The top threads may be deformed by one or more depressions 10, Fig. 7, which may bear a name. A nylon &c. locking ring may be disposed above the slot.
Patent GB-342198-A (GB)
Title: Improvements in meat chopping and sawing machines
IPC: B02C18/02
Filed: 1930-03-21
Abstract: 342,198. Rotary meat saws. SCHILLER, F., Steinsch÷nau, Czecho-Slovakia. March 21, 1930, No. 9099. [Class 145 (ii).] A machine for chopping and sawing meat comprises a chopping block 1 resting on a table 2 to the side of which the sawing mechanism is attached by bolts 52 passing through adjustment slots 53, so that the top face of the casing 44 is flush with the top of the chopping block. The saw 38 is journalled in an arm 45 pivoted to the casing 44 at 46. The arm may be clamped in any position by a screw 47 passing through a slot 48. In its lowest position, the knife is concealed as shown in dotted lines. The driving motor 42 is mounted on a plate 49 pivoted at 50 in a bracket on the table 2. When the saw is raised into an operative position, the motor is supported by its belt 43, but when the saw is lowered, the downward swing of the plate 49 is checked to relieve the belt of tension. The plate carries a contact which completes the motor circuit as the saw is raised.
Patent GB-1043592-A (GB)
Title: Compressed air or other gas control valves
Inventor: GUY KENNETH THEODORE
IPC: F16K1/12
Filed: 1963-03-08
Abstract: 1,043,592. Valves. ROTAX Ltd. Feb. 17, 1964 [March 8, 1963], No. 9231/63. Heading F2V. [Also in Division G3] Air flow between an inlet 11, Fig. 1, and an outlet 12 is controlled by a cup-shaped obturator 27 sliding between two members 13, 17, each secured in the valve body by legs 16. A chamber 21 between the obturator 27 and member 13 is open to the valve body downstream of the seat 27 via a passage 25 and a channel in one of the support legs whilst the chamber inside the obturator is connected to a point 38 upstream of the seat 26 or to atmosphere under the control of a solenoid-actuated shuttle-valve 29 (Fig. 2, not shown); a shuttletype combined relief and regulating valve 44 is disposed between the solenoid valve 29 and the chamber. Each of the two beats 44a, 44b of the latter valve is in a different chamber 40, 40a, but the two chambers are in series, one having the inlet 41a opening therein whilst the other chamber 40a leads to a relief area. When the solenoid 30 is de-energized, the obturator 27 is urged on to the seat 26 by the air acting on an obturator flange; upon energizing the solenoid 30 air is admitted to the inside chamber and opens the valve, whereupon air traverses passage 25 and enters chamber 21 so that the obturator moves to regulate the air flowing to the outlet. The valve 44 ensures that the pressure in the outlet is maintained constant. In a modification, the passage 25 is controlled by a relay valve which is opened when the solenoid is energized.
Patent GB-588715-A (GB)
Title: Pulse-echo distance indicator
IPC: G01S13/18
Filed: 1944-05-15
Abstract: 588,715. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 15, 1944, No. 9316. Convention date, Jan. 30, 1943. [Class 40 (v)] [Also in Group XXXV] In a pulse-echo location system, the indicator is rendered responsive to reflected pulses received during a limited period by means controlled by separate control pulses one of which is of fixed phase and the other of variable phase with respect to a transmitted pulse. The invention is described as applied to a radio pulse altimeter with two indicators, one being operative when the aircraft is less than a predetermined altitude and the other being operative when the aircraft is 'greater than a different predetermined altitude or is approaching an obstacle in the flight path. As shown in the Figure, pulses are radiated by the transmitter 13 which is controlled bv the sine-wave oscillator 10, pulse shaper 11 and modulator 12. The receiver 16, which is blocked during transmissions by the blocking pulses 5<1>, feeds the echo pulses through the amplifiers 18 and 21 to energize the indicator lamps 19 and 22. The amplifiers 18, 21 are normally biassed to cut-off and are rendered operative by the positive pulses 23 and 24 produced by the multivibrators 38, 39 which are synchronised by the pulses 5, so that pulse 23 commences at the transmission of a pulse and pulse 24 terminates on transmission of the succeeding pulse. The variable termination of pulse 23 and the variable commencement of pulse 24 are controlled by the pulses 36 and 37 produced by the wave shapers 33 and 34, the sine-wave inputs to the shapers being controlled by the phase shifters 31, 32 (see Group XXXV). which accordingly control respectively the lower and upper altitude limits within which the aircraft may fly without either of the indicator lamps lighting. The phase shifters may be calibrated in distance so that the altitude may be determined by rotating either phaseadjustment knobs 31<1>, 32<1> to the point where the respective lamp lights up if previously extinguished or vice versa. Operation of the indicator lamp 22 indicates that the aircraft has exceeded the upper limit of altitude or that it is approaching an obstacle ; this ambiguity may be resolved by checking the altitude with phase shifter 31.
Patent GB-1134193-A (GB)
Title: Continuous casting machine
Inventor: BABEL LOUIS
IPC: B22D11/14
Filed: 1966-03-03
Abstract: 1,134,193. Continuous casting. SOC. CIVILE D'ETUDES DE CENTRIFUGATION. 3 March, 1966 [3 March, 1965], No. 9344/66. Heading B3F. A vertical continuous casting machine for producing solid or tubular castings comprises a rotatable mould 2 supported in means 14 and having driven withdrawal rollers 10a, 10b, 11a, 11b positioned beneath the mould the whole arrangement being carried in a structure 12 which is supported on upper and lower selfaligning bearings 14 and 13 respectively and which is rotatable about a vertical axis by a motor 20 and gearing 18, 19. Cooling means for the casting is located between the mould and withdrawal rollers. Guide rollers 23a, 23b are incorporated in the apparatus and rotate therewith. In order to effect positive withdrawal and guiding of the casting the withdrawal and guide rollers are counterbalanced, Figs. 3 and 4 (not shown), to maintain a uniform pressure on the casting and to counteract any centrifugal effects due to the rotation of the rollers about the axis of the casting. To prevent deviation of the casting from the vertical casting axis spring means is incorporated which is centrifugally balanced and effects a restoring action on the casting applied through the respective roller mountings should any tendency for deviation of the casting from its vertical axis occur. When continuously casting tubes in the machine described a mandrel is inserted into the mould as shown in Fig. 1.
Patent GB-512969-A (GB)
Title: Method of photographic development to a predetermined value of contrast
IPC: G03C5/29
Filed: 1938-03-26
Abstract: 512,969. Photographic developing apparatus. PLANSKOY, L. March 26, 1938, No. 9346. [Class 98 (ii)] [Also in Group XL] In a method of developing photographic material to a predetermined contrast, two areas of the material are given different exposures and light is passed through these during the development on to a measuring instrument or instruments, the intensities of the beams differing so that the difference of their logarithms corresponds to the difference in density to be obtained in the two areas on correct development, the measuring being continued until a balance is obtained in the measuring means. The device may control the development automatically. The difference in intensity of the beams may be produced by a filter or a polarizing device in the path of one of the beams. Photo-electric cells, thermopiles, or bolometers may be used for the determination. The apparatus may comprise a light source S, Fig. 1, filter B, two pairs of apertures S1 ... S4 in front of one of which is a biassing density D, a system of mirrors and lenses for focusing the beams on a main lens L5 whence they are directed on to the photo-electric cell P. The control exposures E1, E2 on the film pass in front of the apertures S3, S4 and the light beam is intercepted intermittently by a shutter G so that an alternating current is produced in the cell P until a balance is obtained. The resulting continuous current is then blocked by an alternating current amplifier A causing a signal H to operate. Fig 5 shows a machine for continuous development. The film passes over driving sprockets d1 ... d7 and idle rollers a, ... a5 through the developing bath into a stop bath h. The idle rollers are carried by rods by which the length of the loops of films in the developing bath are automatically adjusted. The speed of the sprockets d is controlled by electric motors brought into operation by the measuring device, a change in speed of the sprockets producing a movement of the rollers a so that the length of the film loops is altered.
Patent GB-672144-A (GB)
Title: Improvements in methods of manufacturing articles of laminar construction
IPC: B32B27/00
Filed: 1949-04-06
Abstract: 672,144. Laminated articles. WAREING, R. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 6, 1950 [April 6, 1949], No. 9375/49. Class 140. Articles of laminar construction are made by laying a skin material which is coated or impregnated with thermosetting resin before or during the laying operations upon the wall of a mould, former or the like, placing thereon thermoplastic core material, applying heat and pressure from the core side of the composite material so as to bring the core material to a plastic condition and into intimate contact with the underlying skin material, and thereafter laying a further layer or layers of skin material upon the core material, such layer or layers also being coated or impregnated with thermosetting resin before or during the laying operation. The skin material may be woven glass cloth, and the core material expanded hard rubber. As applied to the manufacture of a fairing for an aircraft radar equipment, the wall of a female mould is coated with a separating agent, e.g. cellulose foil, or a layer of palm kernel soap, and successive layers of glass cloth are applied, each being coated with a thermosetting resin composition before the next is superimposed. Expanded hard rubber core material, roughly preformed to the shape of the mould, is then superimposed, and a separating agent placed thereover. A closure member is then bolted over the open part of the mould, a rubber sheet being interposed. Air pressure is introduced between the closure member and the rubber sheet, to distend the latter so as to bring the core material, when softened by heat which is conveyed to the interspace by steam pipes or the like, into intimate contact with the skin material. After cooling, the mould is opened, the separating agent removed from the surface of the core material, and a skin of layers of glass cloth and a layer of separating agent applied thereto. The rubber sheet and closure member are then replaced, the rubber sheet distended and sufficient heat to cure the thermosetting resin applied from both sides of the composite material, as by steam heated coils within the mould cavity, and steam or electric heating elements within or around its walls. According to a modified method, the thermosetting resin in the first layer of skin material may be cured during the first moulding operation. A sandwich material having several layers of core material separated by layers of skin material may be built up by a succession of similar operations.
Patent GB-865407-A (GB)
Title: Polymerisation of ethylene
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F2/00
Filed: 1957-03-22
Abstract: Ethylene is polymerized at an elevated temperature and pressure in the presence of a three component catalyst mixture consisting of aluminium, a metal halide Friedel-Crafts catalyst other than a titanium or vanadium salt and a halide of titanium or vanadium in a liquid vehicle, the molar proportion of aluminium amounting to at least one third of the molar total of the other two components forming the catalyst mixture.  The aluminium is preferably finely divided and may be mixed with another metal, e.g. as an alloy.  The aluminium may be in an "active" form, i.e. it may have been treated in the absence of oxygen to remove absorbed or chemically combined oxygen from the metal or form new metallic surfaces by mechanical or chemical action.  The Friedel-Crafts catalyst may be aluminium chloride, stannic chloride, beryllium fluoride or mercuric chloride. The preferred halides are titanium tri- or tetrachloride.  The trihalide may be in the form of a black, brown or purple powder.  The liquid vehicle may be n-pentane, hexane, decane, cyclohexane, or petroleum ether.  The temperature is preferably between 70 DEG  and 200 DEG C. and the pressure between 150 and 1,000 lbs./sq. inch.ALSO:A polymerization catalyst consists of (1) aluminium, (2) a metal halide Friedel-Crafts catalyst other than a titanium or vanadium salt, and (3) a halide of titanium or vanadium in a liquid vehicle, the molar proportion of aluminium amounting to at least one third of the molar total of the other two components forming the catalyst mixture.  The aluminium is preferably finely divided and may be mixed with another metal, e.g. as an alloy. The Friedel-Crafts catalyst may be aluminium chloride, stannic chloride, beryllium fluoride, or mercuric chloride.  The preferred halides are titanium tri- or tetrachloride.  The trihalide may be in the form of a black, brown, or purple powder. The liquid vehicle may be n-pentane, hexane, decane, cyclohexane, or petroleum ether.  The aluminium may be in an "active" form, i.e. it may have been treated, in the absence of oxygen, to remove adsorbed or chemically combined oxygen from the metal, or to form new metallic surfaces by mechanical or chemical action.
Patent GB-182206-A (GB)
Title: Improvements in or relating to egg testing appliances
IPC: G01N33/08
Filed: 1921-03-29
Abstract: 182,206. Dawson, A. R. March 29, 1921. Eggs, testing.-In an egg-tester wherein the egg rests over an electric lamp in an opening 14 in a cover 12 hinged at one end at 13 and supported at the other end by a spring contact 16 which is depressed by the weight of the egg to complete the circuit with a contact 17, a separate compartment 18 is provided for the battery 19, which is separated from the lamp compartment by a partition 24. A slidably removable side 29 presses the spring contacts 22, 23 of the battery against wires 20, 21, which pass through the partition 24 and are connected respectively to the contact 16, through the coil 26, spring contact 27 and wire 28, and to the contact 17. The wire 20 is coupled to or formed integrally with the coil 26 which forms the holder for the lamp 11, which screws into the coil and presses against the contact 27.
Patent GB-550852-A (GB)
Title: Filaments, monofils and like structures of polymeric hexamethylene adipamide
IPC: D01F6/60
Filed: 1941-07-25
Abstract: 550,852. Artificial filaments. DU PONT DE NEMOURS & CO., E. I. July 25, 1941, No. 9451. Convention date, July 25, .  1940. [Class 2 (ii)] Filaments, monofils, and like structures of polymerized hexamethylene adipamide are obtained by extruding the molten polymer through a circular orifice into a quenching liquid having substantially no solvent action on the polymer and maintained at a temperature of at least 35 C. The filaments or monofils obtained are of substantially circular crosssection. The quenching liquid may be water, or an alcohol, ether, ester, hydrocarbon, chlorinated hydrocarbon, or other non-solvent. It may be a mixture of non-solvents and it may contain wetting agents, dyes, and other additions. The quenching liquid may be used in the form of a bath or a spray. The molten polymer should be extruded into the quenching liquid without any prolonged cooling of the extruded polymer intervening. Thus it may be molten when it contacts the quenching liquid or may be set or partially set due to the preliminary cooling action of the air, but the temperature of the polymer should not be materially below its melting point when it enters the quenching liquid. The quenched filament may be cold drawn, preferably after a preliminary soaking treatment in water or after heating to a temperature of 50-100 C. Specifications 461,236, 461,237, and 501,197, are referred to.
Patent GB-1516609-A (GB)
Title: Mirror condenser lamp
IPC: H01K7/02
Filed: 1977-03-07
Abstract: 1516609 Electric incandescent lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 March 1977 [10 March 1976] 9456/77 Heading H1F A mirror condenser lamp comprising a glass lamp vessel having a rotationally symmetrically curved mirrored wall portion, a rotationally symmetrically curved transparent wall portion, the two wall portions intersecting generally in a circle and a cylindrical wall portion extending radially from the line of intersection of the two curved portions; a tungsten filament connected to current supply conductors and arranged in the lamp vessel in such manner that the filament surrounds the focus of the mirrored wall portion, which focus is situated within the lamp vessel; a vacuum-tight seal, in the cylindrical wall portion of the lamp vessel, through which the current supply conductors are passed to the exterior; and an inert gas-containing atmosphere in the lamp vessel; is characterized in that the gas atmosphere has a pressure of more than 1 atmosphere and contains halogen, the lamp vessel consists of halogen-resistant hard glass having a softening temperature of at least 500‹ C., and the lamp dimensions are sufficiently small that the inside of the wall of the lamp vessel during operation assumes a temperature at which tungsten-halogen compounds are volatile. Preferably the mirrored wall portion is curved ellipsoidally or paraboloidally and the transparent wall is spherical or hyperboloidal and reflects thermal radiation.