baber/WOPTO huggingface dataset:
Patent GB-839136-A (GB)
Title: "radiation dosimetry"
IPC: G01T1/08
Filed: 1957-10-07
Abstract: 839,136. Radiation dose-meters. GENERAL ANILINE & FILM CORPORATION. Oct. 7, 1957 [Oct. 18, 1956], No. 31313/57. Class 98(1) A dosimeter for high energy ionizing radiation falling within a wavelength band of between 0.01 and 0.1 A comprising a housing which is opaque to light but permeable to the radiation and contains light-sensitive material in which exposure to radiation, particularly in the longer wavelength part of the band, produces a visible change; means associated with the light-sensitive material for converting the radiation, particularly in the shorter wavelength part of the band, into actinic rays; a filter for correcting the combined responses of the light-sensitive material and the associated converting material so that the effective response is substantially uniform over the band; and means for visually comparing said exposed material against a standard to determine the extent of the exposure to said radiation. As shown the housing which may be of plastic material consists of telescoping parts 6, 7 having finger-grip ridged portions at 10, 11 to facilitate opening the light-tight tongue and groove latch 9, 8. A circular lead block 15 in the part 6 has a circular recess 16 receiving a piece 17 of radiationsensitive high speed print-out paper e.g. as in Specification 795,042, which is sensitive also to actinic light from a fluorescent crystal 13 mounted in the part 7 and overlying the paper when the housing is in the normal closed position. The crystal chosen e.g. thallium-activated potassium iodide is more responsive to the shorter wavelength end of the band of radiation so that the response curves of the crystal and the paper, which is more sensitive to the longer wavelength end of the band, tend to be mutually compensating, and the effective response curve is made substantially flat by a shield or filter 14 for soft X-rays, e.g. of lead of thickness 0.09 inch, which together the base of the lead block of similar thickness encloses the crystal 13. The sensitivity may be increased by a coating of a light-diffusing substance, e.g. magnesium carbonate, either on the crystal or on the inner face of the shield 14. To find the exposure received by the dosimeter, the housing is slid open when the paper 17 is brought beneath the central aperture within an annular comparison wedge 24 and a covering orange filter 21 through which evaluation is made, both the wedge and filter 21 being carried by a cut-out 18 in the part 7.
Patent GB-425495-A (GB)
Title: Support for rock drilling machine
IPC: E21B7/02
Filed: 1933-11-10
Abstract: 425,495. Rock-drill supports. GENT, C. L., 82, Birkenside, Gorebridge, Midlothian. Nov. 10, 1933, No. 31333. [Class 124] A rock drill is supported by a device comprising a chain c encircling a mine prop and tightened by the screw e, the chain carrying a block a. This block is formed with holes to receive a point projecting from the drill body.
Patent GB-322856-A (GB)
Title: Improvements in and relating to electric motor control
IPC: H02K27/20
Filed: 1928-10-29
Abstract: 322,856. British Thomson-Houston Co., Ltd., and Pool, W. J. Oct. 29, 1928. Speed maintaining systems. - Relates to a system of the kind described in Specification 205,215 for maintaining proportionate speeds of a number of electric motors by automatically shifting speed-controlling brushes through the agency of a synchronous-type dynamo-electric machine with a driven armature and a freely rotatable field, the machine serving as a regulating-motor. According to the invention the brushshifting gear can be unclutched from driving connection with the regulating-motor and can be clutched into driving connection with a separate small motor or other means for giving independent adjustment to the brushes. Fig. 1 shows one form of apparatus comprising a regulating motors 1 with its free member geared to a wheel 7 fitted with a clutch 8 transmitting motion to a brush-shifting shaft 9. The shaft 9 can be unclutched from the wheel 7 and clutched to a separate small motor 14 by the movement of a pivoted arm 17 linked to the core of a solenoid 19, and a free-wheel ratchet device 23, 24, Figs. 1 and 2, mounted on a quick-threaded screw 26, is arranged to actuate a change-over switch 29 in circuit with the solenoid 19 and with a fieldwinding of the motor 14. During normal working of the controlled motor (not shown), the shaft 9 remains coupled to the regulating-motor which receives three-phase current from a master alternator and has its armature driven through the belt 3. For starting-up or shutting-down the controlled-motor, the shaft 9 is temporarily coupled to the motor 14 by suitably arranging the circuits in connection with the above described apparatus. Specification 278,062 also is referred to.
Patent GB-715798-A (GB)
Title: Improvements in apparatus for determining the moisture content of materials
IPC: G01N25/56
Filed: 1952-12-11
Abstract: 715,798. Automatic humidity control systems. BODENSEEWERK APPARATEUND MASCHINENBAU GES. Dec. 11, 1952 [Dec. 12, 1951; May 10, 1952; May 10, 1952], No. 31415/52. Class 38(4) [Also in Groups XXXVI and XXXVIII] In apparatus for determining the moisture content of a web of material traversing a dryer, the temperature difference arising between the material and the ambient air as the result of the withdrawal from the material of the heat of evaporation of the moisture therein is determined therinoelectrically as a measure of the moisture content which may be used to control the dryer temperature or the web speed. Figs 1, 2, 1a show apparatus for measuring the moisture content of a web 15 continuously moving through a hot air drying oven (not shown) whereing a tube 2 fixed in the oven carries an insulating member 2 supporting strips 3, 3‹, 3', 3<SP>2</SP> of sheet constantain which pass through an aperture in a lowered casing 14 concentric with the tube and are bent through 90 degrees at the lower ends to carry heat conducting resilient runners 4 contacting the web. The upper ends of the strips carry heat conducting sheets 5 and are respectively connected by soldered copper wires 6, 6‹, 6<SP>1</SP> to the lower ends of adjacent strips to form a battery of thermojunctions 7. 7‹, 7<SP>1</SP>, 7<SP>2</SP>, 8 8‹, and 8<SP>1</SP>, 8<SP>2</SP> alternately at the ambient temperature of the oven and at the temperature of the web, which is depressed due to the evaporation of moisture therefrom. End junctions 7, 8<SP>2</SP> are connected through wires 9, 10 to a millivoltmeter 12 in series with a calibrating variable resistance 11, shunted by a switch 13, and the instrument deflection represents the temperature depression of the web below the ambient oven temperature, which is a measure of the moisture content of the web. The measured value is applicable to control the web speed or supply of hot air to the oven. In a modification, Figs. 4, 5 (not shown), hot air from the drying oven passes through the supporting tube of the thermocouple assembly and is blown through ports over the ambient air thermocouples within the casing, while in a further modification, Fig.. 6 (not shown), the thermojunctions contacting the moving web are mounted in a casing externally of the drying oven and connected by a multiple cable to thermojunctions exposed to the drying atmosphere, which are mounted in a conical tube within the oven, through which the drying air is blown.
Patent GB-620777-A (GB)
Title: Improvements relating to indicating devices for displaying variable information
IPC: G09F7/10
Filed: 1946-10-23
Abstract: 620,777. Indicating variable information. REMINGTON RAND, Ltd., and JACKSON, A. R. Oct. 23,1946, No. 31494. [Class 118 (i)] In an indicator, particularly for showing progress of work in a machine shop, of the kind in which card-bearing trough members 11 slide in guides 7 on a frame 2, the guides are arranged step-wise and are formed so that a projection 13, 14 from the member 11 engages with the guide above. A curson 10 co-operates with a time-scale. The member 11 may be formed to take cards 16 as shown, or narrow strips, Figs. 3, 5 (not shown). Specification 449,015 is referred to.
Patent GB-336795-A (GB)
Title: Improvements in or relating to apparatus for indicating or recording vibrations of rotating shafts or members
IPC: G01H1/10
Filed: 1929-10-17
Abstract: 336,795. Gerard, I. J., Carter, B. C., and Mansell, H. C. Oct. 17, 1929. Dynamometers, rotary-transmission; with recording-apparatus.-Comprises a construction of the type in which the torsional vibrations of a shaft are used to tilt a mirror reflecting a beam of light on to a screen or photographic plate. A stiff tube 1 is inserted into a hollow airscrew or like shaft 2 and secured at the inner end by a taper bolt 3 which is drawn into the split end of the tube by differential screws 5, 6 engaging respectively the bolt and tube to expand the latter into firm connection with the shaft. A mirror 7 is mounted on a carrier 8 pivoted on an axis 9 formed by pointed screws 21 in a frame 10 adjustable in turn about a second axis at right-angles to the first and formed by two sockets on the frame engaging two balls 12 on a housing 13 bolted to an adaptor secured to the outer end of the shaft 2. A pin 15 parallel to the axis 9 engages a longitudinal slot in the outer end of the tube 1 which is supported in a self-aligning bearing 16. A second mirror 17 is adjustably and eccentrically mounted on a ring 18 made in the form of a socket bearing on the ball 19 of the housing 13. A V-shaped camera box 23 is mounted over the housing 13 with only a running clearance. The beam from a spot light 24 passes down one limb of the box to the mirrors and is reflected along the other limb to a ground glass or photographic plate 25. A falling shutter 26 is provided with a slot which may be adjusted to engine speed so as to cover not more than two revolutions. The mirrors are adjusted so that when the shaft rotates slowly, light reflected from the central mirror 7 describes a circle representing no torque. The reference mirror 17 is adjusted to give a concentric circle just within the boundary of the screen. The radial distance from zero position to the diagram is a measure of the torque. Vibration of the shaft itself will produce irregularities in the inner circle and peaks are produced corresponding to the number of firing impulses per revolution.
Patent GB-296231-A (GB)
Title: Improvements in or relating to fluid pressure controlling mechanism
IPC: H01H29/28
Filed: 1927-11-24
Abstract: 296,231. Electroflo Meters Go., Ltd., (Republic Flow Meters Co.). Nov. 24, 1927. Regulating or controlling.-In a fluid-pressure controlling mechanism the circuit of an electromagnetic relay controlling means for altering the pressure is completed on a rise of pressure to a predetermined maximum, the relay effecting a change of electrical connections whereby it is maintained excited until the circuit is opened when the pressure falls to a minimum value. As shown in Fig. 1 in which the system maintains the Level of the liquid in the tank 10 within predetermined limits a U tube 18 containing mercury is connected by a pipe 17 to the side of the tank below the liquid level. The tube 18 carries a contact 23 at its lower level and contacts 31, 25 at different heights in its open limb. When the liquid level, which is raised by the normallyworking pump 14, is sufficiently high to cause the mercury to reach the upper contact 25 a circuit is completed from a battery B to the energizing coil 21 of an electromagnetic relay. The consequent attraction of the armatures 26, 27 breaks the circuit of the pump motor 16 and completes a maintaining circuit for the relay through a contact 32 engaged by the armature 27. Thus the motor is maintained out of action until the mercury in the U tube has fallen below the lower contact 31 when the maintaining circuit of the coil 21 is broken and the armatures 26, 27 are released. The spring 29 thereafter holds the armature 26 against the contact 28 to complete the motor circuit until the mercury-column again reaches the upper contact 25. In a modified form (Fig. 2, not shown) the limbs of the U tube are placed at opposite sides of a perforated diaphragm in a pipe line in which a motor-driven pump controlled in the manner previously described maintains the pressure between predetermined limits.
Patent GB-440292-A (GB)
Title: Apparatus for cutting pipes and such like
IPC: B23D21/10
Filed: 1934-11-05
Abstract: 440,292. Portable pipe-cutters. PASS, E., Station Works, Denton, Lancashire. Nov. 5, 1934, No. 31675. [Class 83 (iii)] In apparatus for cutting pipes in which is provided an adjustable support adapted to carry cutter mechanism and to be fitted about a pipe, the support b is characterized in that it is pivotally mounted on an adjustable block a<3>, Fig. 5, located in a saddle structure a, which is removably fixed to the pipe, and is adapted to be clamped in adjusted position about the pipe by bolt and slot or like means. The saddle a is fixed to the pipe in the usual manner by chains, and the adjustable block is arranged in a vertical guideway with a screw a<4> for adjustment, a pivot a<5> on the block pivotally carries the cutter support b which is adapted to embrace the pipe and to be clamped in its adjusted position by nuts and bolts which loosely engage the slots a<6> in the block, further clamping devices b<6> being provided around the support. The three cutters c<1> are mounted for radial sliding movement in a ring having sprocket teeth for rotation from a hand crank d<2>, feed of the cutters being effected by the " kicker " devices C<2>, C<3>. Specification 317,997, [Class 83 (iii)], is referred to.
Patent GB-765713-A (GB)
Title: Improvements in or relating to decorative laminated foamed natural or synthetic rubber latex product and method of making same
IPC: B29C37/00
Filed: 1954-11-03
Abstract: 765,713. Laminated materials. ANDREWSALDERFER CO. Nov. 3, 1954 [Feb. 25, 1954], No. 31789/54. Drawings to Specification. Class 140. Decorative laminated cushioning material is made by applying a layer of foamed natural or synthetic rubber latex on a moving belt, gelling the layer and then embossing it, vulcanizing the embossed layer, applying an adhesive to the embossed surface, and pressing thereon a flexible and maybe elastic fabric or an elastic synthetic resin film under sufficient pressure to flatten temporarily the embossed foamed layer. The moving belt may carry a woven fabric such as muslin, or a knitted fabric, which becomes parts of the laminated product. Synthetic rubbers specified are neoprene, butadienestyrene and butadiene-acrylonitrile copolymers. Vulcanization is effected in a chamber in which hot air is circulated, and embossing may be effected by means of a profiled roller. The adhesive may be a vinyl resin applied by spraying. The synthetic resin film may be polythene or a vinyl resin. Specification 702,335 is referred to.
Patent GB-770918-A (GB)
Title: Process for the impregnation of wood
IPC: B27K3/02
Filed: 1954-11-03
Abstract: 770,918. Impregnating wood. FLASSE, R. Nov. 3, 1954, No. 31820/54. Class 140. A process for the impregnation of a wooden member consists in forming a main bore in the member, injecting an impregnating liquid with the bore and, when the member has been impregnated to the desired degree, introducing a reserve of impregnating liquid into the bore and closing the end thereof so that it forms a reservoir of impregnating liquid, and providing means communicating with the bore through which the impregnating liquid within the reservoir can be renewed. As shown, the lower part of a pole is hollowed by the bore 1 which is closed by the plug 2 after injection of impregnating liquid under pressure. A refill passage 3 and an air outlet passage 4 are drilled at a suitable distance above the level 5 of the ground.
Patent GB-409775-A (GB)
Title: The manufacture of new azo dyestuffs
IPC: C09B29/30
Filed: 1932-11-10
Abstract: Azo dyes suitable for dyeing wool in even shades from an acid bath are obtained by coupling in an alkaline medium a diazotized aminoarylsulphonic acid amide, in which at least one hydrogen atom of the sulphonamide group is replaced by hydroxyalkyl, with a component containing at least one carboxylic or sulphonic group. The production of the following dyestuffs is specified in examples:--(1) aniline-3-sulphohydroxyethylamide --> (alkaline) 1-o -chloracetylamino - 8 - naphthol - 4 : 6 - disulphonic acid, dyeing wool clear red shades fast to fulling; the coupling component may be replaced by 2 - phenylamino - 8 - naphthol - 6 - sulphonic acid to obtain brown shades or by 1-(2<1>-chloro-4<1> or 5<1>-sulpho) phenyl-3-methyl-5-pyrazolone or 1-(2<1> : 5<1>-dichloro-4<1>-sulpho) phenyl - 3 - methyl - 5 - pyrazolone to obtain greenish yellow shades; (2) aniline-3-sulphodi (hydroxyethyl) amide --> (alkaline) 1-o -chloracetylamino-8-naphthol-4 : 6-disulphonic acid, dyeing wool vivid bluish red shades; (3) aniline - 4 - sulphohydroxypropylamide --> (alkaline) 1 : 4-naphtholsulphonic acid, dyeing wool orange shades; the coupling component may be replaced by 2-acetylamino-8-naphthol-6-sulphonic acid to obtain yellowish red shades; (4) 2 - methoxyaniline - 5 - sulphohydroxyethylamide --> (alkaline) 1-acetylamino-8-naphthol-4 : 6-disulphonic acid, dyeing wool bluish red shades, fast to fulling; (5) aniline-3-sulphohydroxyethylcyclohexylamide --> (alkaline) 1 - acetylamino - 8 - naphthol - 3 : 6 - disulphonic acid, dyeing wool bluish red shades, fast to fulling. p Aniline-3-sulphohydroxyethylamide, aniline-3-sulphodi (hydroxyethyl) amide and aniline-3-sulphohydroxyethylcyclohexylamide are obtained by condensation of 1-nitrobenzene-3-sulphonic acid chloride with aminoethylalcohol, di(hydroxyethyl)amine and hydroxyethylcyclohexylamine respectively, followed by reduction of the nitro group.  Aniline - 4 - sulphohydroxypropylamide is obtained by condensation of 1-acetylaminobenzene-4-sulphonic acid chloride with aminopropylalcohol, followed by saponification of the acetylamino group.  2-Methoxyaniline - 5 - sulphohydroxyethylamide is obtained by treatment of 2-methoxyacetanilide with chlorosulphonic acid and condensation of the resulting 2-methoxyacetylaminobenzene-5-sulphonic acid chloride with aminoethylalcohol, followed by saponification of the acetylamino group.
Patent GB-388713-A (GB)
Title: Improvements in external vaporisers for internal combustion engines
IPC: F02M31/08
Filed: 1932-11-11
Abstract: 388,713. Vaporizers. HARRIS, T. M., 3, Burlington Gardens, London. Nov. 11, 1932, No. 31985. [Class 7 (iii).] An external vaporizer comprises a box 3 whose back wall 2 is bolted against the engine cylinders and has ports 19 .. 22 to register with the engine exhaust ports 17, 18 from which branch ducts leading to the cylinder inlets. The front of the box is open and has a cover 6 ; an exhaust outlet 4 is formed at one end. A branched inlet manifold 9 is bolted inside this box the inlet having a flange 10 for securing to the top of the box. Helical baffles are placed in the inlet branches. The walls of the box are curved to deflect the exhaust on the manifold 9. The outlet ends of the manifold may be bolted to the back wall 2 or as shown to a partition cast in the box ; this partition has a number of exhaust passages 34 .. 37 controlled by flap valves, by hand or thermostat in order to vary the heating. A flap 43 regulates the opening of an outlet 44 leading directly to the exhaust pipe 4. The carburetter may be mounted on the box or cover.
Patent GB-902866-A (GB)
Title: New carbon catalysts and their use in the preparation of vinyl esters
IPC: B01J37/34
Filed: 1960-09-16
Abstract: A carbon catalyst for use in certain vinylation reactions (see Group IV(b)) is prepared by irradiating active carbon with ionizing radiation and if desired thereafter impregnating with a Group IIb metal compound, e.g. zinc acetate, zinc formate, zinc propionate, zinc chloride, zinc oxide, cadmium acetate, mercuric acetate and mercuric chloride.  Specified radiations are g -rays from a cobalt-60 source and an electron beam from a Van de Fraaf accelerator, the preferred quantity of radiation being between 104-1010 Roentgen.  For impregnation, the irradiated active carbon is immersed for a day in an aqueous solution of the metal compound at room temperature and dried.ALSO:Vinyl esters are produced by reacting a carboxylic acid or hydrogen chloride with acetylene in the presence of an active carbon catalyst which has been irradiated with an ionising radiation and preferably then impregnated with a compound of a Group IIb metal. Metal compounds specified are zinc acetate, zinc formate, zinc propionate, zinc oxide, cadmium acetate, mercuric acetate and mercuric chloride.  The preferred quantity of radiation is between 104-1010 Roentgens.  In examples active carbon is irradiated with g -rays from a cobalt-60 source or an electron beam from a Van de Graaf accelerator and impregnated with a zinc salt by immersing it in a solution of the salt for a day at room temperature and used as a vinylation catalyst for the vapour phase reaction of acetylene with acetic acid, propionic acid and hydrogen chloride at temperatures in the range of 135-200 DEG C.
Patent GB-678524-A (GB)
Title: Improvements in metal rectifiers
Inventor: GAYLER GEORGE ALFRED
IPC: H01L25/07
Filed: 1949-12-13
Abstract: 678,524. Casings, enclosures and mountings for metal rectifiers. WIPAC DEVELOPMENT, Ltd. Nov. 10, 1950 [Dec. 13, 1949], No. 31997/49. Class 37. A full-wave rectifier unit, designed to form part of vehicle battery - charging equipment, comprises two selenium rectifiers 18 secured by means of a tubular tie 15 and compression spacing member 25 within a hermetically sealed cylindrical metal casing formed by dished plates 10, 12 with peripheral flanges 11, 13 united, for example, by spot welding. The two annular rectifier plates 18 coated on one side only with selenium which is covered with a layer of metal constituting the positive electrode are assembled with the coated side pressed into direct contact with the inner face of the corresponding dished plate. The casing thus constitutes the positive pole and in use a bolt within the tubular tie 15 fixes the unit to the positive-earth frame of the vehicle. The negative terminals 21 insulatingly mounted on diametrically opposed cylindrical bosses 14 formed on the front dished plate 12 are connected via tags 24 and radial strips 20 to plates 19 pressed into contact with the uncoated side of selenium plates 18. The tubular tie 15 terminated at both ends by integral clamping flanges 17 passes centrally through the assembly and the compression member is as shown an annular pad of synthetic rubber, or Fig. 3 (not shown), an insulatingly mounted helical compression spring. The dished plates 10, 12 ensure adequate cooling.
Patent GB-766735-A (GB)
Title: Assembly joint for the elements of tubular metallic framework
IPC: E04G7/14
Filed: 1954-11-15
Abstract: 766,735. Bolts; cotters. SIMONET, D. Nov. 15, 1954 [Nov. 16, 1953], No. 32007/54. Classes 89 (1) and 89 (2). [Also in Group X] A coupling for scaffolding and like members 20, Fig. 1, includes a U-shaped body 1 with limbs 3, 2 having apertures 5, 7, respectively, for a wedging key 8 which forces member 20 to the base of the body, a locking wedge 13, Fig. 2, engaging a slot 12 in the key to draw the key into wedging position. The coupling may consist of several bodies formed integrally, e.g. two at right-angles as illustrated.