baber/WOPTO huggingface dataset:
Patent GB-447123-A (GB)
Title: Improvements in or relating to pulverising mills
IPC: B02C25/00
Filed: 1934-11-09
Abstract: 447,123. Automatic control systems. DAMANT, E. L., Box 2408, Durban, South Africa. Nov. 9, 1934, No. 32331. [Class 38 (iv)] Fluid pressure.-The feed of solid material to an air swept pulverizing mill is regulated in response to variations in the air pressure drop through the mill by means of a photo-electric cell arranged to respond to the pressure drop through the mill and adapted to control the feed mechanism through an electromagnetic device by which the feed mechanism is started and stopped in response to changes in air pressure. A pulverizing mill is connected to a suction fan to draw off the ground material and the effect of too much or too little feed in the mill causes a variation in air pressure in the body of the mill and consequently varies the pressure inside a bell 21 sealed in a mercury trough 1. An adjustable apertured shutter 4 is mounted on the bell and another shutter 7 which may be adjustable is interposed between the shutter 4 and photoelectric cell 5 whereby movement of the shutter 4 varies the light from a source 6 on the cell 5. The cell 5 is connected to the grid of a thermionic valve amplifier 10 connected to alternating or direct current mains and having an electromagnetic relay 8 in its plate circuit. When the relay 8 is energized it closes a switch whereby a solenoid 12 is energized to raise the pawls 13 of a rotary feed device 9 and stop the feed to the mill. A remote control switch 14 may be closed, independently of the automatic control mechanism, to stop the feed to the mill. A safety switch mechanism comprising contacts 15, 16 operated by a member 17 Rxed to the moving bell 21 are connected in series with the no volt coil of a motor controller and/or the circuit of an alarm device and are set to operate at maximum and minimum limits of pressure, a switch 17a being provided for shortcircuiting the contacts when the mill is started up.
Patent GB-293634-A (GB)
Title: Improvements in sewing machines
IPC: D05B63/00
Filed: 1927-12-01
Abstract: 293,634. Armstrong, J. J. V., (Union Special Machine Co.). Dec. 1, 1927. Chain-stitching.-A looper 10, Fig. 1, is oscillated from a crank 22 of a rotary shaft 20 located beneath the work support 9, by a pitman 23, rock shaft 18, lever arm 17, and links 14. The looper is given its needle avoiding movement by an eccentric 25, Fig. 5, on the shaft 20 and an arm 24 on a rocking looper support 13. The pitman 23 has an under-thread take-up arm 27, Fig. 3, extending rearwardly between two under-thread guides 35. The length of the take-up arm is varied by means of a screw 30 and slot 29. Feed by dogs.-The feed bar 40 is oscillated by a lever 41 and is lifted and lowered by the eccentric 25 of the needle-avoiding mechanism of the looper, by means of an arm 43.
Patent GB-738773-A (GB)
Title: Improvements relating to the automatic regulation of the rate of flow of a fluid through a pipe or the like
IPC: G05D7/01
Filed: 1952-12-22
Abstract: 738,773. Fluid-actuated valves. BUTCHER, K. L., and COTTELL, E. C. Dec. 21, 1953 [Dec. 22, 1952], No. 32383/52. Class 135. A valve for controlling the flow of a fluid comprises a double-beat mushroom-type closure member 50, Fig. 2, actuated by, and adjustable relatively to, a pressure-responsive device, e.g. bellows 56 which is subject differentially to the pressures on the two sides of a restriction 51 in the inlet line, and one of the two valve seats is adjustable relatively to the closure members. The closed end of the bellows is secured to the valve stem by a looking device 58. The pressure upstream of the restriction is applied to the outside of the bellows through a passage 54. The closures need not seat simultaneously or one of the valve seats can be slightly larger than the other. In a modification, the pressureresponsive device is a U-tube 23, Fig. 1, containing a denser liquid with the pressure upstream of the restriction 14 applied to one limb, and the pressure downstream of the restriction applied to the other limb. The closure members 5 move under the control of a float 24 on the surface of the liquid in the inner limb of the U- tube. The float is non-rotatably carried by the screwed stem 6 of the closure member, and its position relative to the latter is varied by turning a handle 31 which rotates the stem 6x. An indicator (not shown) indicates the degree of opening of the valve.
Patent GB-338697-A (GB)
Title: Improvements in testing plants for internal combustion engines
IPC: G01M15/02
Filed: 1929-10-25
Abstract: 338,697. Farman, H., and' Farman, M., (trading as Farman H. et M.). Oct. 29, 1928, [Convention date]. Dynamometers, rotary-absorption.-Comprises a testing plant for engines in which the engine and the whole or part of the torque-measuring apparatus are disposed in a closed chamber preferably with double walls and so designed as to deaden noises and to be well-ventilated. The engine 1 is mounted on a fixed support 2 in a small chamber 3 closed by walls 4 - - 7 and provided with doors communicating with the surrounding space 8 in which the attendants are stationed A run-way 9 extends through the entrance 10 and serves to support lifting appliances for the engine. Another entrance 11 for persons is provided. The engine is connected by a shaft 12 and elastic coupling 14 to a device for driving a propeller 13. The shaft 15 is provided with three arms 16a perpendicular to the axis each carrying a bevel wheel 17 'which gears with a fixed wheel 18 and with a similar wheel 20 secured to the shaft 16. This shaft is carried at one end in the casing 19 by a ball bearing 21 and at the other end by a bearing 23. The end 15a of the shaft 15 finds a bearing at one end in the end of the shaft 16, the other end being carried in a ball bearing 25. The casing 19 is mounted in ball bearings 26, 27 carried by a stationary frame 28 and has attached to it a long lever 19<a> to which a load may be applied for balancing the torque, such load being measured by a weighing machine 19b. The exhaust gases are discharged through one or more pipes 30 and are collected by tubes 31, each of which is provided with a tapered end. The gases thus exert an ejector action and assist ventilation. The tubes 31 lead into a chamber 32 communicating with the atmosphere through holes 33. The tubes 31 are removable and are provided with handles by which they may be moved up and down to surround the ends of the tube 30 or to be lifted to enable the fuses to be observed. The propeller 13 produces a flow of air through the aperture 33 such air passing out by the conduit 46 in which may be located baffles 49<a> to prevent noise. In a modification, a vane wheel is substituted .for the propeller and is located in a separate chamber, the driving shaft passing through a hole in the separating wall. In this case air is admitted at the bottom of the chamber 3 through one or more conduits. In a further modification, the vane wheel acts as a centrifugal ventilator, the air being supplied through a large conduit to the central part of the wheel. The braking action may be regulated by adjusting the pitch of the propeller or by adjusting the vanes of the wheel radially.
Patent GB-1531854-A (GB)
Title: Diphenylamine containing therapeutic composition and its applications particularly in veterinary medicine
IPC: A61K31/135
Filed: 1976-08-04
Abstract: 1531854 Detoxicant for chlorine containing drugs METABIO 28 July 1977 [4 Aug 1976] 32542/76 Heading A5B Diphenylamine is used as a detoxicant for chlorine containing antiparasitic drug (e.g. carbon tetrachloride, hexachlorophene, or bithional sulphoxide).
Patent GB-753200-A (GB)
Title: Improved variable-speed power transmission mechanism
IPC: F16H37/00
Filed: 1954-11-10
Abstract: 753,200. Change-speed control. GENERAL MOTORS CORPORATION. Nov. 10, 1954 [Dec. 21, 1953], No. 32545/54. Class 80(2) Initial movement to and from neutral of a manual shift lever 13, controlling an auxiliary two, three, four or five speed gear 11 on a motor - vehicle, closes a switch 35, which, by energizing a solenoid 33, moves to neutral position one section 21 of a manual valve controlling neutral, N, three forward drive ranges (DR4, INT and LO), and reverse (REV), of a main change-speed gear 10 wherein further valves, responsive to speed and torque conditions, provide automatic shifts between four ratios in DR4, three in INT and two in LO. The auxiliary gear 11, when two-speed, may provide direct- and over- or under-drive. Movement of its shift lever 13, limited by adjustable stops 19, is transmitted to the shift-rail 17 of the auxiliary gear 11 by a rod in two telescoping parts 16a, 16b, Fig. 5, initial movement, resisted by torque-load, causing yield of one or other of two centring springs 41, which closes the switch 35 by a grooved cam 40, operating through a ball 52 sleeve 51, Fig. 6, plate 57 and spring 62 an insulating plate 59, carrying a contact 61 which bridges studs 53, 54. A circuit is now completed through the usual engine ignition switch 71, Fig. 7, to energize a relay 65, closure of the contacts 66 of which energizes the solenoid 33 which shifts the manual valve-section 21 to neutralize the main transmission 10. Release of shiftresistance as the auxiliary transmission 11 now passes to neutral causes the centralizing springs 41 to reopen the switch 35, deenergizing the neutralizing solenoid 33, and re-engaging the main transmission, which is again disengaged when the shiftrail IT feels the resistance of synchronizers in the auxiliary transmission during final gear engagement, being re-engaged on completion. The main transmission 10 is thus momentarily re-engaged in passing through neutral, which reduces the wear on the synchronizers of the auxiliary transmission. The solenoid circuit includes a thermal, time or manual switch 69 which breaks the circuit should the switch 35 fail. to re-open. The manual ranging valve of the main automatic transmission 10 is in two telescoping sections that, 21, which, by a land 26, Fig. 2, controls neutralizing exhaust of the controlling fluid-pressure at 67, being operated independently by the solenoid 33, de-energizing of which, in neutral or at the end of a shift in the auxiliary transmission 11, permits a spring 32 to return the valve-section 21 rightwards to an extent limited by a collar 27 to whatever position it had previously occupied as a result of the N ....REV setting by a manually controlled shift-pin 30.
Patent GB-485938-A (GB)
Title: Improvements in or relating to super-chargers for internal combustion engines
IPC: F02B67/10
Filed: 1936-11-27
Abstract: 485,938. Pumps. BRUSH ELECTRICAL ENGINEERING CO., Ltd., and SENIOR, H. V. Nov. 27, 1936, No. 32562. [Class 7 (ii)] A compressor 12, placed symmetrically with reference to the engine cylinders, is mounted on a sleeve surrounding an extension of the crankshaft and driven by multiplying gearing through a lay-shaft 22. The crank-shaft extension may be omitted, and the compressor may be mounted above the engine.
Patent GB-1515508-A (GB)
Title: Filtration apparatus
IPC: B30B9/22
Filed: 1975-07-23
Abstract: 1515508 Feed device for a pressure filter STEETLEY MINERALS Ltd 23 July 1975 [23 July 1974] 32576/74 Heading B1D A filtration apparatus comprises a substantially cylindrical chamber 39 provided with circumferentially spaced feed apertures 38 adapted to connect with inner annular filtration compartment 40, and a hollow cylindrical member 50 movably constructed and arranged to cover or expose apertures 38 by means of apertures 52, and means are provided to jack a central cylindrical body 20 up and down (e.g. to release a filter cake adhering to an encircling filter cloth).
Patent GB-723405-A (GB)
Title: Improvements in or relating to blade-carrying turbine rotors and the like
IPC: F01D5/30
Filed: 1952-12-24
Abstract: 723,405. Elastic-fluid turbines and compressors. GENERAL MOTORS CORPORATION. Dec. 24, 1952 [Dec. 26, 1951], No. 32692/52. Class 110 (3). In a turbine or compressor rotor wherein each blade has an enlarged root portion mounted in a slot in a support member by a pin which is carried by the rotor and enters an aperture in said root portion, the position and construction of the pin is such that the blade can be released from the slot by sliding it longitudinally thereof thereby causing the pin to shear part of the said root portion. In the compressor shown each rotor disc 14 comprises a thickened rim 30 and a spacing flange 32 the end of which engages a shoulder 36 on another disc 14. The discs 14 are interconnected by dowels 38 and by a tie bolt extending between the hubs of the end discs. The root portion 44 of each blade 16 is located in a dovetailed slot in the rim 30 and is locked therein. by a pin 50 which is frictionally retained within the rim 30. The rim 30 and the pin 50 are made of a material such as alloy steel which is stronger than the material of the root portion 44. The pin 50 bears against a lip 54 on the root which shears during axial displacement of the blade. The stator vanes 12 have tenons mounted in shrouds 18, 20; the shroud 20 comprising concentric channel members 24, 26 having superimposed webs spot welded together.
Patent GB-138068-A (GB)
Title: Improved manufacture of paints or varnishes
IPC: C09D145/02
Filed: 1919-12-30
Abstract: 138,068. Koppers Co., (Assignees of Darrin, M.). Jan. 18, 1919, [Convention date]. Varnishes.-Varnishes are prepared from the heat-polymerized coumarone-indene resins obtained in the recovery of light oil from distillation gas, as described in Specifications 112,419 and 123,806, [both in Class 2 (iii), Dyes &c.], and a varnish oil such as China wood, linseed, soya bean, poppy, perilla, or corn oil. The oil may be previously treated by boiling or oxidation. The resin may be heated with one or more of the oils to 350‹ F. if the oil has been boiled, or to 450-570‹ F. if the oil has not been boiled. A drier such as litharge may be added before or during the heating. The resin may be melted separately and then added to the heated oil. When the mixture is cool it is thinned with a rhinner such as turpentine, turpentine substitutes, petroleum distillates, naphtha, benzol, benzine or toluene. Pigments, dyes, &c. may be added. Reference has been directed by the Comptroller to Specifications 17378/00 and 21667/11.
Patent GB-1482856-A (GB)
Title: Foldable shopping bag
IPC: A45C7/00
Filed: 1975-08-05
Abstract: 1482856 Shopping bags N G PUI CHIK [trading as RISING HANDICRAFTS MANUFACTORY] 5 Aug 1975 32733/75 Heading B8K A foldable shopping bag 1 comprises a flexible container having a mouth and defined by substantially rectangular front and back faces 6 interconnected by substantially rectangular side faces 7 and a base 8, the base being secured in face-to-face contact with an exterior reinforcing panel 11 of a similar shape to the base. The panel 11 is foldable and securable in the folded condition to define covers 13 between which the folded container can be accommodated. As described the bag comprises two sheets of nylon fabric stitched along seams 2, and has handles 14. The base 8 is stitched at 9 to the panel 11 which is of stiff plastics or leather. The bag can be collapsed and the panel 11 folded along a hinge line 12 so that the collapsed bag is accommodated between the covers 13 which may be held in the closed condition, Fig. 1, by a sliding clasp fastener 16 secured to their edges.
Patent GB-984297-A (GB)
Title: An improved housing or like structure
IPC: E04B1/32
Filed: 1962-08-25
Abstract: 984,297. Protecting plants; housing animals. G. R. SMITH. Aug. 21, 1963 [Aug. 25, 1962], No. 32736/62. Headings A1E and A1M. A housing or structure for use in propagating plants or housing animals is formed from a number of triangular members a adapted to be bolted, clipped or otherwise secured together. The members may be pieces of plastics, metal, plywood or hardboard or frames filled in with material. The lower part of the structure is formed as a skirt projecting downwardly from the horizontal edges a<SP>2</SP> of the upper part and adapted to rest on the ground.
Patent GB-795812-A (GB)
Title: Process for the reduction of solid matter
IPC: C22B5/00
Filed: 1954-11-12
Abstract: The chemical reduction of pulverized solids is effected by impregnating the solids with a carbonizable liquid fuel at normal or slightly elevated temperatures to provide a uniform mixture, and without drying or hardening, suddenly exposing the impregnated mass to a high temperature so that part of the liquid fuel is flashed off and the remainder is carbonized within the mass thereby effecting the reduction.  Highly viscous liquid fuels may be dissolved in a solvent such as benzene to facilitate mixing. The solvents may be recovered after impregnation by suitable heating.  The process is applicable to the reduction of calcium sulphate with or without added silica or kaolin, to produce calcium sulphide, hydrogen sulphide or sulphur dioxide gas and to convert the solid residue into clinker; to the reduction of oxidic metal ores to facilitate mechanical or chemical separation of the metal compounds from other ore components, for example the partial reduction of copper silicate ores to obtain leachable cuprous oxide; to the partial or complete reduction of metal oxides such as iron or nickel oxides.  Oxygen containing gases may be supplied during the heat treatment to burn that part of the fuel which is flashed off.  According to an example, crushed anhydrite was dried at 200 DEG  C. and after cooling was impregnated with a light lubrication oil.  The mixture was introduced into an electric furnace preheated to 950 DEG  C. and retained there for half an hour in the absence of air.ALSO:The chemical reduction of pulverized metal ores is effected by impregnating the solids with a carbonizable liquid fuel at normal or slightly elevated temperatures and without drying or hardening, suddenly exposing the impregnated mass to a high temperature so that part of the liquid fuel is flashed off and the remainder is carbonized within the mass thereby effecting the reduction. Highly viscous fuels may be dissolved in volatile solvents such as benzene, which may be recovered after impregnation by suitable heating.  The process is applicable to the reduction of oxidic metal ores to facilitate mechanical or chemical separation of the metal compounds from other ore components, for example the partial reduction of copper silicate ores to obtain leachable cuprous oxide, and to the partial or complete reduction of metal oxides such as iron or nickel oxides.  Oxygen containing gases may be supplied during the heat treatment to burn that part of the fuel which is flushed off.
Patent GB-429192-A (GB)
Title: Improvements relating to belt conveyor apparatus
IPC: A21C15/00
Filed: 1933-11-27
Abstract: 429,192. Endless - belt conveyers; coating biscuits. WRIGHT, F. R., and MEREDITH & DREW, Ltd., 164, High Street, Shadwell, London. Nov. 27, 1933, No. 33172. [Class 78 (i)] [See also Group VI] Light articles such as unbaked biscuits c are transferred from a conveyer X to a conveyer Y by two or more bridging rollers F, G which are driven at the same peripheral speed as the speed of the conveyers and have their circumferences substantially tangential to the line joining the conveyers. The rollers are formed with deep circumferential grooves, and their peripheries may be formed with teeth or projections. A number of spaced discs may be substituted for the rollers. Sugar from a sprinkler A which falls between the biscuits on the belt X is delivered to a receptacle B.
Patent GB-1394586-A (GB)
Title: Preparation of calcium nitrate and phosphoric acid solutions
Inventor: VERONICA G
IPC: C01F/
Filed: 1972-07-14
Abstract: 1394586 Purification of phosphoric acid MONTECATINI EDISON SpA 14 July 1972 [6 March 1972] 33197/72 Heading C1A A slurry of calcium nitrate and phosphoric acid obtained by the action of nitric acid upon phosphate rock and containing 12 to 27 grams of silica per kilogram of phosphate rock and derived from dissolution of silicates is purified by addition of a flocculating agent in an amount of from 10 to 150 mg. per kg. of phosphate rock. A soluble silicate, e.g. sodium silicate may be added prior to, during or after the attack with nitric acid. The particles in suspension form a thickened layer at the top of the clarified solution which may be siphoned or filtered off. The flocculating agent may be a long-chain polymerization product containing amidic and carboxylic functional groups such as a polyacrylamide.
Patent GB-1097825-A (GB)
Title: Novel method for suppressing insects
IPC: A01N57/12
Filed: 1965-08-03
Abstract: A method for suppressing insects, and protecting plants against insect attack, comprises applying to an area subject to insect infestation technical S-(1,2-dicarboxyethyl)-O,O-dimethyldithiophosphate in its substantially undiluted adjuvant-free form as discrete droplets, whereby it remains as droplets without wetting or penetrating the surface area.
Patent GB-644860-A (GB)
Title: Finder systems for pulse channels
IPC: H04Q11/04
Filed: 1946-11-08
Abstract: 644,860. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 8, 1946, No. 33272. Convention date, Nov. 14, 1945. Drawings to Specification. [Class 40 (iv)] A line-finder for selecting pulses occurring at a time position, in a recurring cycle of time positions, appropriate to a calling line, comprises means for synchronizing, with the incoming pulses, a local source of search pulses produced by frequency division from a local oscillator, synchronization being effected by control of the local oscillator when the incoming and search pulses drift into coincidence. Pulses produced when such coincidence occurs may directly synchronize the local oscillator or may open a gate to inject the output of a master oscillator into the local oscillator. The invention is described with reference to a system identical with one of those described in Specification 644,571 which claims other features.
Patent GB-896810-A (GB)
Title: A process for protecting zinc against corrosion
IPC: C23C22/24
Filed: 1959-10-01
Abstract: The zinc layer of a galvanised article is protected against corrosion by immersing it in an aqueous solution containing 0,7-1,2% w/v of an oxidising compound of hexavalent chromium, 0,005-0,02% v/v sulphuric acid (S.G. 1,84), and 0,02-0,35% v/v wetting agent.
Patent GB-823425-A (GB)
Title: Improvements in or relating to frequency spectrum analysers
Inventor: FALLOON SHIRLEY WALDRON HUGH W
IPC: G01S7/35
Filed: 1956-11-01
Abstract: 823,425. Optical apparatus. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 16, 1957 [Nov. 1, 1956], No. 33423/5B. Class 97(1) [Also in Groups XXXVI and XL(c)] The displacement of a light ray, produced by the presence of a pressure wave in a liquid, is utilized in a frequency spectrum analyser comprising means 1 for producing pressure waves of the frequencies to be analysed; means 2, 3, 4 to dispersively refract the pressure-waves; means 8, 9 for transmitting light across the paths of the refracted pressure waves the presence of which produce changes in the positions of the light rays; and means 10, 11 for observing these changes. As described, the apparatus is immersed in a tank of transparent pressure-wave propogating liquid such as de-aerated water, and a spectrum of electrical signals is fed to a piezo-electric or magnetostrictive transducer 1 to produce pressure-waves of corresponding frequencies which pass through the pressure-wave analogues of a collimator 2, prism 3, and objective 4; e.g. the prism 3 may comprise a hollow glass prism filled with CO 2 . Light from an elongated slit 8 is transmitted along the focal plane of the objective 4 and across the pressurewaves spectrum, but is intercepted by masks 10, 11; where a pressure-wave frequency is present, however, the light path is disturbed and a corresponding spot of light f 1 , f 2  will be seen in the slot 12 which may be marked with a frequency scale thereby enabling the frequency components of the spectrum to be determined.