baber/WOPTO huggingface dataset:
Patent GB-812632-A (GB)
Title: Improvements in or relating to pressure gauges
Inventor: MILLAR WILLIAM
IPC: B06B1/04
Filed: 1956-04-20
Abstract: 812,632. Measuring physical properties by sound waves. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 17, 1957 [April 20, 1956], No. 12242/56. Class 118 (2). [Also in Group XXXIX] Gas pressure is measured by arranging the gas to constitute an acoustic transmission line in a tube and measuring the attenuation of a signal sent from a transmitter at one position to a receiver at another position along the line. The invention is illustrated in Fig. 2 where a tube 13 provides two equal paths between a transmitter diaphragm 14a and a receiver diaphragm 14b. Pipe 16 admits the gas whose pressure is to be measured, the symmetrical construction with respect to pipe 16 ensuring that acoustic noise entering via the gas inlet is transmitted along equal paths and balances at the receiver diaphragm. The transmitter and receiver are of identical construction (see Group XXXIX) and each comprises a conducting diaphragm located between the poles N, S of a magnet. The diaphragm is arranged to form the single-turn secondary of a toroidal transformer whereby, in the case of the transmitter, an electrical signal in the primary causes movement of the diaphragm, and in the case of the receiver, movement of the diaphragm induces an electrical signal in the primary. Fig. 1 (not shown) illustrates an arrangement not forming part of the invention in which the tube is straight, with the transmitter and receiver at opposite ends. The attenuation measurement may be made with a continuous sinusoidal signal, although this has the disadvantage that the nature of the gas must be known and the frequency adjusted accordingly to prevent the transmission line operating near resonance, since otherwise the system becomes inaccurate. A preferred method is to use pulse signals. This is illustrated in Fig. 5 where the pulse train from the waveform generator is chosen of such shape and duration in relation to the natural period of the diaphragms that the receiver diaphragm is not permitted to oscillate but is displaced from and restored to its rest position once only during each pulse train. The electrical output from the receiver is applied through amplifiers to a voltmeter V to permit the attenuation to be measured, a calibrated attenuator being included to permit the system to cover a wide range of gas pressure. The receiver output is also applied to the Y-plates of a cathode-ray tube CRT, the X-plates of which are controlled by a time-base triggered from the waveform generator. This arrangement permits the velocity of the pulse through the gas to be determined whereby a correction factor consisting of the ratio of the velocity of sound in the gas being measured to that for which the voltmeter V is calibrated may be applied to the attenuation measurement to increase the accuracy of the system.
Patent GB-692788-A (GB)
Title: Improvements relating to portable suction pumps
Inventor: LUDFORD LESLIE BRENTNALL
IPC: F04B9/14
Filed: 1950-05-17
Abstract: 692,788. Reciprocating pumps. FOUR OAKS SPRAYING MACHINE CO., Ltd. May 15, 1951 [May 17, 1950], No. 12265/50. Class 102 (i). A portable suction pump 1 is carried by a frame 2, having end supports 4, and is operated by a lever 11 that extends longitudinally of the frame and projects beyond one end of the frame. A clip or catch 18 is slidably mounted on the lever so that it can engage an anchorage 19 fixed to the frame and the lever 11 can be used to carry the apparatus. The carrying handle 14 at the other end is pivoted and can be stowed in the support 4 or raised so that projections 17 engage the frame.
Patent GB-973988-A (GB)
Title: Vapor generator
IPC: F28D7/06
Filed: 1963-03-28
Abstract: 973,988. Heating vapour generators by hot fluids. COMBUSTION ENGINEERING Inc. March 28, 1963 [May 8, 1962], No. 12294/63. Heading F4A. In a steam boiler heated by a hot liquid, such as pressurized water, liquid metal, or petroleum, or by a hot gas, which flows through the tubes of a tube bundle immersed in water in the vapour generating portion of a vessel, said portion being separated from the heating medium inlet and outlet chambers located at the end of the vessel by a tube plate, the tube plate being supported against distortion by the pressure of the heating medium by a thick walled tube rigidly attached to the tube plate and the end of the vessel, and serving, for example, as a steam offtake. In the form shown, the boiler 10 comprises a vertically elongated cylindrical body 11 closed at its ends by hemispherical heads 12, 13 welded to the body defining a closed vessel. The vessel is divided into an upper hot fluid portion and a lower steam generating portion by a tube plate 14. The tube plate has a centrally located opening 18 to which is joined a cylindrical nozzle 20 by a weld 22. A plurality of apertures 19 receive the ends of U-tubes 28 forming a tube bundle suspended from said plate. The upper end of the nozzle is welded to the upper head 12, and provides an external outlet to the lower steam generating portion. The hot fluid portion is divided into inlet and outlet chambers 24, 25, the hot fluid passing through the U-tubes between them. A number of annular spacer plates 29 support the tubes which pass through a series of apertures, whilst they include a series of smaller apertures which permit the upward passage of steam created in the steam generating portion of the system to the outlet nozzle 20. A central downcomer conduit 32 permits feed-water from the rectangular inlet pipe 34 to be passed to the lower portion of the tube bundle. In a modification the vapour generated may be inverted, such that the tube plate 14 rests on the nozzle 20 which could serve as a drain.
Patent GB-1517834-A (GB)
Title: Aqueous dispersion type coating composition
IPC: C09D5/38
Filed: 1976-03-26
Abstract: 1517834 Aqueous coating compositions DAI NIPPON TORYO CO Ltd 26 March 1976 [28 March 1975 9 March 1976] 12340/76 Headings C3V C3B and C3R Coating compositions comprise (a) 90-30 parts by weight of an aqueous medium, (b) 10- 70 parts of particles comprising a resin, the particles having a softening point of 5-120‹ C. and an average size of 0À5-80 Á, and (c) a scaly aluminium pigment in an amount of 0À05-30 wt. per cent based on (b), the total weight of (a) and (b) being 100 parts, and (b) and (c) being dispersed in (a). Component (b) may be a hydroxyl-containing acrylic resin in admixture with a blocked isocyanate resin or aminoplast resin; a glycidyl group-containing acrylic resin in admixture with a polybasic acid or anhydride; an acrylic resin containing blocked isocyanate groups in admixture with a polyol; an epoxy resin in admixture with an amine, polybasic acid or anhydride, aminoplast, imidazole, blocked polyisocyanate, triazole or dicyandiamine; a hydroxyl-containing polyester in admixture with a polybasic acid anhydride or a blocked polyisocyanate; a polyester having both hydroxyl and acid groups; or a glycidyl group-containing acrylic resin in admixture with a carboxyl-containing acrylic resin. The compositions may additionally include a flaky pigment.
Patent GB-908626-A (GB)
Title: Silicones as slurrying aid in the preparation of iso-olefin polymers
Inventor: SELLEN GEORGE FRANCIS
IPC: C08F10/00
Filed: 1961-04-06
Abstract: A polymer of an isolefin obtained at -20 DEG  to -160 DEG C. with a Friedel-Crafts catalyst, is discharged into hot water containing a dispersion of silicon dioxide in a polymethyl siloxane whereby the volatile reaction liquid is flashed off, the catalyst is deactivated and the polymer is obtained in finely-divided form and is separated from the water without agglomeration occurring.  The polymer may be a homopolymer or a copolymer with a multiolefin, and the preferred reaction liquid is a haloalkane.  Conventional polymer dispersing aids, e.g. Zn or Ca stearate, also may be present.
Patent GB-237561-A (GB)
Title: Improvements in or relating to lawn-mowers
IPC: A01D75/30
Filed: 1925-05-14
Abstract: 237,561. Martin, P. July 24, 1924, [Convention date]. Lawn-mowers are provided with oilbaths for lubricating the gearing for driving the cutter, and two machines are attached to the front of a tractor and one to the rear so that the three together cut a width equal to the distance between the outer wheels of the two front machines. The gearing for driving the cutter 4, Fig. 2, from the wheels 3 consists of a pinion 7 keyed on the axle 2, a pinion 8 and toothed wheel 10 fixed on a shaft 9 in the gear box 6, and a pinion 11 on the cutter shaft 12. Oil is poured into the gear box 6 up to a level 13. Two gear boxes and sets of gear wheels may be employed. The rear mower 15, Fig. 1, is attached directly to the draw-hook of the tractor 14, and the front mowers 15', 15<2> are connected by snap-hooks to arms 17 projecting from a frame 16 on the tractor. The framework of each mower comprises side plates, cross-stays, and a triangular draw-frame 18.
Patent GB-954196-A (GB)
Title: Method of preparing amino esters
IPC: C07C233/00
Filed: 1960-04-08
Abstract: Amino-esters of the formula R.CO.O.A.NR1 R11 (in which R is a monohalogenophenoxymethyl, 2-methyl-4-chloro-phenoxymethyl, naphthoxymethyl or indolyl-methyl group, A is an alkylene radical of at most 4 carbon atoms, and R1 and R11 are aliphatic radicals of at most 4 carbon atoms or benzyl radicals, or-NR1 R11 is a saturated heterocylic radical which may include another hetero-atom, or R1 may be an alkylene chain attached to A in which case R11 has any of the values specified above) are prepared by reacting in an anhydrous organic medium one mole of a halide of the appropriate acid with one or two moles of the appropriate amino-alcohol, or by reacting the free acid with an halogenated amine corresponding to the amino-alcohol.  The products may subsequently be converted to acidaddition salts of quatenary derivatives with alkyl halides. Specified values of R1 and R11 are methyl, ethyl, beta-hydroxy-ethyl, betahalogeno-ethyl, beta-cyano-ethyl, propyl, isopropyl, allyl and benzyl, or-NR1R11 may be alkylene-imino, morpholino, piperazino, N1-methyl-piperazino or, for example, N-R11-piperidyl. Examples are given.  2-Methyl-4-chloro-phenoxyacetic acid chloride is prepared from the acid and thionyl chloride. Parachloro-phenoxy-acetic acid chloride is prepared similarly.  The compounds of the invention, which are stated to exert a stimulating action on the central nervous system, may be made up into pharmaceutical compositions with suitable carriers. Cachets and aqueous solutions of the beta-dimethylaminoethyl ester hydrochloride of p-chlorophenoxyacetic acid for oral administration or intravenous or intramuscular injection are described.
Patent GB-118879-A (GB)
Title: Improvements in or relating to Internal Spring Heel-seats.
Inventor: MATEAR HUON ARTHUR
IPC: A43B21/30
Filed: 1917-09-08
Abstract: 118,879. Matear, H. A. Sept. 8, 1917. Socks.-An inside heel cushion comprises a pair of plates A, B, Fig. 1, connected by tension springs D and provided with studs C to engage removable coil springs F, which take the weight of the wearer. The ends of the springs D engage threads E<1>, Fig. 3, on short square-headed plugs E, which are tapped to receive fixing- screws E<2>. The device is secured by a central screw in a recess in the heel of the shoe so as to project somewhat above the heal seat, and above it is arranged a false heel seat comprising a metal plate G, Fig. 4, having an upwardly-extending shield G<1>, preferably of leather, shaped to conform to the heel of the wearer. The forward end of the plate G carries a leather or other flexible tab H, while the shield G<1> may have stitched to it a lining J adapted to be detachably secured at its upper edge to the shoe by snap-fastenings J'. hooks and eyes, &c. The plate G may be arranged to perform the same functions as the plate B, which is then dispensed with.
Patent GB-1116908-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M35/10
Filed: 1966-03-23
Abstract: 1,116,908. Admission pipes. HONDA GIJUTSU KENKYUSHO KABUSHIKI KAISHA March 23,1966 [March 30, 1965], No.12902/66. Heading F1B In an I. C. engine, the cylinders are divided into groups, of two cylinders per group, each group being supplied from a separate carburetter 5 or 6. The time intervals between the opening of the inlet valves of successive cylinders of any one group are equal. When the inlet valve of one cylinder closes, a pulsation effect is produced in the admission pipe. When the inlet valve of the other cylinder of the same group opens, this pulsation effect is utilized to improve suction efficiency. The common length of the admission pipes 1a and 4a differs from that of pipes 2a and 3a, cylinders 1 and 4 thus developing high power at low engine speeds whilst cylinders 2 and 3 develop high power at high engine speeds, the power output curve of the engine as a whole thus being comparatively flat.
Patent GB-362341-A (GB)
Title: Improvements in and relating to the separation of dry materials
IPC: B03B4/04
Filed: 1930-05-26
Abstract: 362,341. Separating solid materials. BRAMWELL, I. L., Wentworth House, Station Road, and BIRTLEY CO., Ltd., both in Birtley, Co. Durham. May 26, 1930, No. 12944. [Class 117.] In the separation of granular materials of different density, such as a mixture of coal and shale, by subjecting them to the stratifying action of air and separately removing the different layers, on apparatus such as is described in Specification 321,670, [Class 117, Sifting &c.], the air action is utilized to cause or assist the discharge of the lower separated layer. In the form described, the table 1, Fig. 1, which may be stationary or moving is formed of inclined slats which impart to the air a direction towards the discharge port 36 for the lowest layer of material. Oppositely directed vanes 38 are provided above the bed for the purpose of progressing the upper layer to the discharge port 39, and also for the purpose of creating eddies in the body of material. The air currents are pulsating and are produced by means such as described in Specification 358,986 which comprises one or more air chambers 3 disposed above the table and connected to a suction fan. The pulsations are caused by a piston reciprocating in the chamber 3 adjustments being provided for varying its speed, amplitude, and mean position. The material is fed to the table from a hopper 34 with an air intake on its underside. The invention may be used in connection with the apparatus described in Specification 322,480, [Class 117, Sifting &c.]. According to the Provisional Specification the pressure pulsating means may comprise a number of separate air chambers independently connected to the suction fan and having independent variable control devices, or it may comprise a piston having a differential up-and-down movement. A further modification referred to is the formation of the support for the bed of materials of flat pieces of material which is supported on a relatively open meshed grid. Specifications 344,802, 344,803, and 344,804 are referred to in the Provisional Specification.
Patent GB-1123711-A (GB)
Title: Apparatus for moulding damp substances
IPC: A23P10/20
Filed: 1966-03-24
Abstract: 1,123,711. Extrusion of dampened material. MASCHINENFABRIK FRIEDRICH HAAS G.m.h.H. 24 March, 1966 [25 March, 1965 (2)], No. 12955/66. Heading B5A. Dampened material, e.g. compressed cakes of pigment, is extruded through rows of orifices 6 in a trough 2 by pressure exerted on the material as a rib 3 on an oscillating drum 1 is brought first towards one side of a fixed rib 5 and then towards the other. Drum 1 may be driven mechanically or hydraulically, directly or via a chain drive, but as shown in Figs. 2 and 3 (not reproduced), an electric motor (8) is directly coupled to drum 1 and is reversed by cam actuation of switches (9). In a second embodiment, Fig. 4 (not shown), two drums are located in the same trough. The extruded material may be fed on to a conveyer to be dried thereon or be conveyed to a drier. The extrudate may be granulated using a cutting or mincing machine.
Patent GB-376411-A (GB)
Title: Improvements in and relating to gas meters
IPC: G01F3/30
Filed: 1931-05-02
Abstract: 376,411. Gas meters. BUTTERWORTH, E. and PARKINSON & COWAN (GAS METERS), Ltd., Fitzalan Street Works, Kennington Road, London. May 2, 1931, Nos. 13014 and 19320. [Class 54.] In a gas meter of the type in which a bell e makes a tumbler or swash-plate movement about a universal joint v in a casing a the upper part of the bell is provided with a ring z which bears at its highest point on a collar 2 mounted on ball or roller bearings coaxiallywith the index mechanism shaft w which carries a slotted arm x engaging the bell spindle y. The bell shown comprises four compartments k .. n respectively communicating through ports g.. j with the gas space inside a cylindrical wall f and through ports s (not shown), t, q, r in division plates p with the gas space in the casing a. The lower part of the casing and a cylindrical wall o at the top of the bell contain a liquid seal. The gas may be supplied to the meter through a pipe c delivering into the space within the wall f and be withdrawn from the meter by a pipe d or vice versa. The inlet and outlet ports of each compartment are diametrically opposite so that when one port of a compartment is unsealed the other is sealed. The inlet pressure consequently raises the compartments in which gas is being supplied, and depresses the compartmerits in which gas is being discharged, the bell thereby turning about the shaft w. The bell is provided with a number of pockets 5 which become filled with the liquid seal and act to counterbalance the bell. In a modified construction of meter the liquid in the lower part of the casing seals both the inlet and outlet ports of the compartments of the bell and the universal joint v is arranged in a lubricant trough. One Provisional Specification states that the bell may be divided into compartments by radial partitions, a duct leading from an inlet aperture arranged between adjacent partitions through an aperture in an adjacent partition to the next compartment and that the centre pivot may be adjustable vertically for calibration purposes. It also states that the bell may carry an element rolling on a path at the bottom of the casing. The other Provisional Specification states that the universal joint may be sealed in the lubricant container by a telescopic shell or by a flexible diaphragm.
Patent GB-435878-A (GB)
Title: Improvements in and relating to thermionic amplifiers
IPC: H03F1/08
Filed: 1934-04-30
Abstract: 435,878. Valve amplifying circuits. FERRANTI, Ltd., HALL, A., and TAYLOR, M. K., Hollinwood, Lancashire. April 30, 1934, No. 13030. [Class 40 (v)] In a resistance-capacity coupled amplifier the frequency response is varied by the use of an inductive coupling associated with the output circuit and connected between the grid of the following valve and its grid - leak. The Figure shows a transformer e, the output of which can be added in phase or in phase opposition with that of resistance c through potentiometer m. In a modification, Fig. 3 (not shown), a potentiometer is connected in parallel with the anode resistance and the transformer primary in series, with the junction connected to the potentiometer slider. The Provisional Specification describes the use of a coupling consisting of two transformers in series, one of the transformers having a condenser in parallel.
Patent GB-370214-A (GB)
Title: Improvements in and relating to the rotors of gear-wheel pumps and motors
IPC: F01K9/00
Filed: 1931-05-04
Abstract: 370,214. Stuffing-box substitutes ; rotary pumps. KLEINRAHM, H., 9, Fuldastrasse, Duisburg, Germany. May 4, 1931, No. 13073. Convention date, May 2, 1930. [Classes 110 (ii) and 122 (v).] Interengaging screw - threaded discs b secured to the ends of rotors a of gear wheel pumps or motors, prevent the lateral escape of working fluid and relative axial movement of the rotors. Alternatively the discs may be formed with obliquely cut gear teeth. Cylindrical projections c on the cover-plate engage recesses in the ends of the rotors to form an additional packing whilst permitting slight combined axial movement of the rotors.
Patent GB-573979-A (GB)
Title: Improvements in or relating to mountings for machine guns and automatic rifles
IPC: F41A27/06
Filed: 1940-08-16
Abstract: 573,979. Machine gun mountings. MOTLEY, L. Aug. 16, 1940, Nos. 13103/40 and 4621 /41. [Classes 92 (i) and 92 (ii)] A mounting for a plurality of spaced-apart automatic guns 3 provides for rotation of the guns as a whole about a common upright axis K-K and also about additional swing axes located behind the upright axis and behind the gunner, the guns being coupled together for rotation in unison and the recoil forces of the guns passing through or close to the respective swing axes so that there is no disturbing moment if one or more of the guns should missfire. In the four-gun mount shown in side elevation in Fig. 1 and in part plan in Fig. 3, the guns are detachably mounted on arms 2, the upper pair of which swing for training about spaced axes L and for elevation about a common axis M whilst the lower pair move about similar axes L, N, the arms being coupled for synchronous movement by parallel-motion links 15, 18. The swing pivots are mounted on struts 6 extending from a swivelling seat structure 1 and the movements are effected, without the use of gearing, by the gunner on the seat 11 who grasps handles 4, one of which has a trigger-lever 5 acting through Bowden wires to fire the guns simultaneously and apply braking means 27 to the seat structure. Springs 11 serve to counterbalance the weights moving about the axes M, N. In a modification, the four gun arms are mounted above one another in a central plane over the head of the gunner who may be encased in armour and be provided with periscopic sights. The spaced training axes L may, in this case, be dispensed with, training being effected entirely by movement about the upright axes K-K and the brake being unnecessary. By progressively stepping the swing axes to the rear of the gunner the guns can be moved into position for vertical fire without the parts fouling one another. In some cases, only two guns, arranged one above the other or side by side, may be provided.
Patent GB-1134339-A (GB)
Title: Process for the treatment of aluminium and aluminium alloy surfaces
IPC: C23C22/66
Filed: 1966-03-24
Abstract: 1,134,339. Coating aluminium. OLIN MATHIESON CHEMICAL CORP. 24 March, 1966 [15 April, 1965], No. 13107/66. Heading B2K [Also in Division C7] An aluminium surface is contacted for from 5 to 15 seconds with an aqueous solution (pH 7 to 11) containing deionized or distilled water, and from 0.001 to 0.3% of hydrazine or an organic amine. The surface is subsequently coated, e.g. by dipping, with vinyl, alkyd, acrylic and urethane paints.
Patent GB-889886-A (GB)
Title: Improvements electric candles
IPC: F21V9/40
Filed: 1960-04-13
Abstract: 889,886. Thermal switches. KLOTZ, R. April 13, 1960 [April 16, 1959], No. 13151/60. Class 38 (5). [Also in Group XI] In an electric lamp made to resemble a candle, one of the supply wires 5 is connected to the filament 15 by way of an insulated electric heating resistor 7 wound round a bimetal blade 8 of a thermal switch which at each beat shortcircuits the resistor to produce a flickering effect, the resistor and switch being so designed as to produce a voltage drop of the order of 5% and a frequency of the order of 5 beats per second. The lead 5 is also connected to the other contact 9 of the switch, the resistor 7 being connected between the lead 5 and the arm 8 which in turn is connected to the filament 15. The switch 8, 9 is supported between rigid members 12, 13, the member 13 carrying an adjusting screw 14 for the switch.