baber/WOPTO huggingface dataset:
Patent GB-395728-A (GB)
Title: Improvements in or relating to settling tanks
IPC: B01D21/24
Filed: 1932-01-21
Abstract: 395,728. Gravity-separation apparatus. ANDREWS, L., The Hut, Westend Lane, Pinner, Middlesex. Jan. 21, 1932, No. 1878. [Class 46.] After each withdrawal of sludge from the bottom of a settling-tank a portion of the sludge withdrawn is forced back in the form of streams or jets so as to loosen aggregated matter in the lower part of the tank and facilitate its subsequent discharge. A cylinder c, Fig. 1, is arranged over the sludge outlet e of a settling-tank a, the interior of the cylinder being in communication with the tank through outwardly-tapering channels d. A valve g controlling the outlet e is loosely connected to a plunger i which is moved in the cylinder c by means of a rod i<2> connected to a pneumatically-operated piston o. The arrangement is such that as the plunger i is lifted it draws sludge into the cylinder c through the channels d and then opens the valve g through which the sludge is discharged. On downward motion of the plunger the valve is closed and then the sludge in the cylinder c is forced back through the channels d to loosen the aggregated solid matter in the tank. The channels d may be curved so that the liquid forced in is given a whirling motion in the tank. A modification is described in which the cylinder c, the piston o and its cylinder m are situated within a conical chamber which rises from the bottom of the tank, the channels d being replaced by pipes which have nozzles at their outer ends. In a further modification, Fig. 7, the cylinder c with the valve g and cylinder m are arranged outside the tank. The cylinder c is connected to the tank by a pipe 12 with branches 13, the ends of which are connected to metal cones 15 with passages at their lower ends opening into the tank. Fig. 9 shows an arrangement for controlling the automatic operation of the piston o at predetermined times. The inlet and outlet pipe w for the cylinder m is connected to cylinders 1, 2 with diaphragms 5, 7, respectively controlling an air supply pipe 3 and an exhaust pipe 6. The diaphragms are moved by the arms 8, 9 of levers, the other arms of which engage cam wheels 10, 11 geared to rotate together.
Patent GB-1300855-A (GB)
Title: Production of sodium percarbonate
Inventor: DENAEYER JOSE LUIS
IPC: C01B15/10
Filed: 1971-01-14
Abstract: 1300855 Sodium percarbonate SOLVAY & CIE 14 Jan 1971 [14 Jan 1970] 1900/71 Heading C1A Sodium percarbonate of the formula is produced in the form of abrasion-resistant granules, by evaporation, in a fluidized-bed drier, of the water present in an aqueous mixture comprising sodium percarbonate, by a process in which the evaporation is carried out continuosly in the constant presence of inorganic per-salt nuclei whose dimensions are smaller than those of the granules withdrawn from the drier. The drier may be supplied with an aqueous suspension of sodium percarbonate derived from a partial crystallization thereof. It is also possible for the drier to be separately supplied with the said nuclei and with either an aqueous solution of sodium percarbonate or with an aqueous solution of sodium carbonate. The nuclei may comprise particles of sodium percarbonate or particles of other inorganic persalts e.g. sodium perborate or a perhydrated phosphate. The nuclei may be formed in situ in the drier by mechanical disintegration of a portion of the granules formed during the evaporation. Advantageously the sodium percarbonate is formed in the presence of a stabilizer, e.g. sodium silicate, magnesium sulphate or magnesium silicate, which may be formed in situ.
Patent GB-724662-A (GB)
Title: Apparatus for controlling the temperature of an enclosed space
IPC: F24F3/052
Filed: 1953-01-22
Abstract: 724,662. Fluid-pressure servomotor-control systems. VAPOR HEATING CORPORATION. Jan. 22, 1953 [Feb. 1, 1952], No. 1909/53. Class 135. Apparatus for controlling the temperature of a space A comprises a valve 13 proportionately controlling the volume of heated medium supplied at 11 and unheated medium at 12 delivered to the space via conduit 10, an electrically-operated pump 24 for withdrawing liquid from a reservoir 22 and delivering it to a storage unit 29 containing a spring-loaded ram 30, a conduit 27a, 28, from the unit containing a two-way valve C for delivering liquid to and exhausting it from a spring-loaded pressure-actuated motor 15 operating the valve 13 and means responsive to the space temperature, e.g. the thermostat E, for controlling the valve C. An electric motor 25 drives the pump drawing liquid from the reservoir and supplying it through a check valve 26 and pipes 27, 28 to a spring-loaded, piston-type pressure accumulator 29. When the piston is at the bottom of the cylinder the telescopic piston-rod 32, 33 operates a snap.action switch 39 to drive the motor and when the piston is fully raised against its spring 31 the switch is operated to stop the motor and liquid is forced by the piston through pipe 27a up to a solenoid-operated shuttle lift valve C. When the space temperature falls below a certain value, the mercury in the thermostat breaks a contact 73 in a shunt around a solenoid 65 so that an armature closes a switch 63 to energize the valve C and allow fluid to flow via ports 53, 54, pipe 55 and adjustable needle valve G to raise the spring- loaded motor piston 17 so -that the valve 13 increases the flow of hot and reduces the flow of cold air. At the same time a switch 75 is closed to allow an auxiliary electrical heater F to heat the thermostat and again close the contacts 72, 73, which de-energizes the solenoid 65 and allows a spring 66 to open the contacts 63, 75, thereby respectively de-energizing the heater F. Thus the switches 63, 75 cycle under the control of the thermostat, and if the time during which the switches are closed is greater than that during which they are open due to a low space temperature, more fluid passes to the motor 15 than leaves it and the valve 13 is moved to increase the flow of hot air. The reverse happens if the space temperature is high.
Patent GB-799010-A (GB)
Title: Improvements in or relating to seals between two relatively rotatable parts
IPC: F16J15/38
Filed: 1955-01-21
Abstract: 799,010. Stuffing-box substitutes. GITS BROS., MFG. CO. Jan. 21, 1955 [May 12, 1954], No. 1940/55. Class 122 (5). A rotatable shaft seal comprises a sealing ring 18 slidably mounted on a support 21, resiliently urged into facial sealing contact with a second relatively rotatable sealing ring 16, and sealed to the support by a sealing member 34 of resiliently deformable material axially compressed between two washers 40, 41 into sealing engagement with a cylindrical wall 23 of the support, the diameters of the washers 40, 41 being substantially the same as those of the member 34 and the material of the washers being less resilient but more resistant to corrosive fluids at high temperature than the material of the member 34. A ring 20, preferably of carbon, carried by the ring 18 is urged into contact with a face 19 of the ring 16 and the member 34 is compressed by springs 37 located between the end wall 24 of the support 21 and a rigid washer 36. The ring 16 rotates with the shaft and is sealed thereto by a gasket 17. Axial grooves 32, 33 in the ring 18 are engaged by corresponding indentations 30, 31 in the inner wall 22 of the support 21, whose outer wall 23 is enclosed in a sleeve 25 that has an inturned flange 27 to prevent displacement of the ring 18 from within the support and is sealed to the shaft housing 11 by a rubber or like resilient gasket 29. The washer 34 may be of heat and corrosion resistant material such as organosilicones or tetrafluorethylene alkyds which may be filled with particulate refractory filler such as carbon or silica flour and the washers 40 and 41 may be of the same material reinforced by refractory fibrous fillers such as asbestos or glass fibres. In a modification, the washers 34, 40, 41 and 36 are located in a recess in the inner periphery of the ring 18 and the washer 34 is deformed into contact with the inner wall of the support.
Patent GB-853373-A (GB)
Title: Improvements in or relating to rectifier units
IPC: H01L25/07
Filed: 1959-01-19
Abstract: 853,373. Rectifier units. MASCHINENFABRIK OERLIKON. Jan. 19, 1959 [Jan. 30, 1958], No. 1942/59. Class 37 Semiconductor rectifier elements are screwed into cooling blocks which are stacked together on an insulating bolt, cooling discs which protrude beyond cooling the blocks and insulating discs as necessary being interposed between the blocks. As shown an air cooled rectifier device suitable for use as a full wave three phase rectifier, with elements used in pairs comprises semi-conductor elements 1 screwed into copper cooling blocks 2 which are threaded on an insulating bolt 5 and separated by aluminium cooling discs 3. An organic adhesive may be used between the cooling blocks and the cooling discs to improve thermal contact. Insulating layers 4 inserted between the cooling discs electrically separate the units. In a further embodiment Fig. 4 (not shown), more than one rectifier element is screwed into each cooling block.
Patent GB-569348-A (GB)
Title: Improvements in lubricants and cooling emulsions particularly for wire-working
IPC: C10M173/00
Filed: 1943-02-05
Abstract: 569,348. Lubricating emulsions. WAKEFIELD & CO., Ltd., C. C., EVANS, E. A., and HITCHCOCK, N. E. F. Feb. 5, 1943, No. 1982. [Class 91] A lubricant and cooling emulsion, particularly for wire-drawing, comprises in addition to water a soluble oil composition compounded of a mineral lubricating oil, a sulphured base, an alkaline earth metal soap, and an emulsifying agent, with or without a vegetable lubricating oil. The sulphured base comprises a lubricating oil which has been treated with sulphur or with a sulphur compound which combines with the oil to a greater or less extent, and may be prepared as described in Specifications 557,755 and 557,756. The soap specified comprises calcium oleate and the emulsifying agent preferred comprises a petroleum sulphonate or a mixture thereof with sulphonated castor oil with or without a water-soluble soap. The vegetable oil may be rapeseed oil. The emulsion may also contain a minor proportion of a halogenated organic compound such as chlorinated paraffin wax. Specifications 557,757 and 557,758 also are referred to in the Provisional Specification.
Patent GB-1440161-A (GB)
Title: Fruit juice composition and a milk drink containing it
IPC: A23L27/10
Filed: 1974-01-16
Abstract: 1440161 Fruit juice composition K NISHIYAMA 16 Jan 1974 [23 Jan 1973] 01992/74 Heading C6E [Also in Division A2] A fruit juice composition comprises 4À2 to 6À0 w/v% of sodium carboxymethylcellulose, 10 to 50 w/v% of a fruit juice and 3À1 to 5À0 w/v% of citric, lactic, malic or tartanic acids, in an aqueous medium. The composition is used for making milk drinks which comprise, byvolume 3 to 5 parts milk, 6À5 to 4À5 parts sugar, and 0À5 parts of the fruit juice composition, the pH of the milk drink being 3À6 to 4À5. The fruit juice may be apple, orange, peach, strawberry or grapefruit juice by addition fruit essence, colouring agents, flavourings (e.g. amino acids) and preservatives may be included. The milk may be fresh or reconstituted.
Patent GB-1218211-A (GB)
Title: Improvements in or relating to the production of a plurality of coatings on an insulating carrier
Inventor: GARTNER GUSTAV
IPC: H05K3/04
Filed: 1968-01-13
Abstract: 1,218,211. Resistors. ROBERT BOSCH G.m.b.H. 13 Jan., 1968, No. 2012/68. Heading H1S. [Also in Division C7] In a method of forming a resistor an insulating substrate 10 of e.g. cardboard is covered with a mask 11, e.g. a dye applied by printing, a layer 12 of e.g. chrome-nickel followed by a layer 13 of e.g. copper are then vapour deposited on the substrate. A mask 14 of e.g. a dye is formed on the Cu layer, and the copper etched away around the mask using iron chloride. The masks 11 and 14 are then removed by a solvent, e.g. trichloroethylene, to leave a resistor (Fig. 2, not shown). The mask 14 may remain on the Cu layer and act as a soldering flux.
Patent GB-620562-A (GB)
Title: Improvements relating to combined centrifugal clutch and brake mechanisms
IPC: F16D67/02
Filed: 1947-01-23
Abstract: 620,562. Door-operating appliances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Jan. 23, 1947, No. 2094. Convention date, June 24, 1946. [Class 65 (i)] [Also in Groups XXIV and XXXIV] In gearing for raising and lowering a crossing gate 18, a motor 6 drives a flange 7 having centrifugal weights 11 acting on a collar 12 to engage a friction lining 8 with the flange 7. The collar 12 is keyed to a shaft 2, connected through gearing 17, 16 with the gate 18, and carries a second set of centrifugal weights 13 which cause axial movement of the collar to engage the friction lining 9 with a stationary brake member 10 when the motor 6 is de-energised and the shaft. 2 is driving. The centrifugal force of the weights 11 is greater than that of the weights 13. When the gate is fully raised it is held by an electromagnetic pawl 21.
Patent GB-821992-A (GB)
Title: Improvements in or relating to method and machine for mechanically finishing work pieces
IPC: B24B31/00
Filed: 1958-01-22
Abstract: 821,992. Chucks and sockets. DAVIDSON, L. R. Jan. 22, 1958 [Jan. 24, 1957], No. 2122/58. Class 83 (3). [Also in Group XXIII] A quick-release chuck 60 for engagement with the hexagonal shaft 68 of a fixture carrying workpieces through a finishing compound in a polishing machine (Group XXIII) is secured by a pin 150 to the vertical spindle 54 of the machine and comprises a sleeve 160 which is axially-movable on a body portion 148 of the chuck and is provided with a recess 168 so that when moved to its upper position against a spring 164, a series of balls 158 can move radially outward to disengage a circumferential groove in the shaft 68 to permit its removal from the chuck. The workpieces are initially mounted on a ring or spider of the fixture which is placed so that a conical washer 222 welded to the shaft 68 rests on a similar washer 220 on a lifting device 76 positioned adjacent the chuck. In order to lift the shaft when loaded with workpieces into the chuck, a fork-shaped yoke 216, which carries the correspondingly fork-shaped washer 220 and is secured to a sleeve 172 axially movable on a shaft 170, can be released from its lower position so that a spring 212 lifts the shaft 68 into the chuck by disengaging a projection 200 on a tubular cap 194, which is axially secured but radially displaceable on pins 202 against a leaf spring 206, from a slot 214 in the shaft 170. A further slight upward manual pressure then positions the groove in the chuck for reception of the balls 158 on downward movement of the sleeve 160 to lock the shaft 68 in the chuck. The upper position of the lifting device can be adjusted by a screw 224 on the head carrying the device engaging the tubular cap 194.
Patent GB-264330-A (GB)
Title: Improvements in and relating to carburetors
IPC: F02M23/03
Filed: 1926-01-26
Abstract: 264,330. Linebarger, C. E. Jan. 25, 1926. Spray carburettors.-Fuel is pumped from a tank 19 and sprayed downwardly from a nozzle 13 into a chamber 10 in which it is mixed with air indrawn through the valve 12, the mixture passing into the induction pipe 15. Surplus fuel falls into the chamber 34, whence it is repumped to the spraying nozzle. The pumping of air through the pipe 20 is prevented by the provision in the chamber 34 of a float 57, carrying a valve 58 closed by the falling float. If, however, the tank 19 is raised, the rising float 57 closes the valve 59 seated in a partition in the pipe and thereby checks the supply from the tank. Pumping is effected at starting by the pump 18 actuated by hand or an electric starter, and automatically during running by the pump 26. Exoessive pressure is relieved by means of a by-pass 37 containing a valve 32, and fuel accumulated in a reservoir 25 may be fed to the nozzle 13 by opening the cock 30. Primary air passing into the mixing chamber by way of the valve 12 and secondary air drawn into the induction pipe 15 by way of the ports 50 are controlled manually by the sleeve 12 connected to the rod 46, and automatically by a second sleeve 40 interposed between the sleeve 12 and casing 70. The sleeve 40 may be connected by the linkage 71, 72 to the baffles 14 which control the passage from the mixing chamber to the induction pipe. Each baffle plate consists of superposed sheets of copper and iron, or other materials having different thermal coefficients of expansion; the position of the sleeve 40 is thus dependent on the temperature of the mixture. A water-jacket 65 surrcunds the mixing chamber; the chamber 34 may be cleared of the impurities that have accumulated therein by removing the cap 36.
Patent GB-736356-A (GB)
Title: Improvements in the temperature control of rotors
IPC: B04B15/06
Filed: 1953-01-26
Abstract: A method of cooling a centrifugal rotor which is heated by gas friction when rotated at high speeds consists in providing the rotor with a temperature controlled cooling jacket and a protective casing and filling the spaces there-between with hydrogen at a reduced pressure; the distance between the casing and jacket being greater than the distance between the jacket and the rotor.  Dimensions are given in the Specification.
Patent GB-362745-A (GB)
Title: Improvements in cleaning material feeders for washing machines
IPC: A47L15/44
Filed: 1931-01-23
Abstract: 362,745. Dish-washing machines. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Pittsburgh Cleanser Laboratory, Inc. ; 45, Astor Place, New York, U.S.A.) Jan. 23, 1931, No. 2242. [Class 138 (i).] A feeder for powder or like cleansing material for use in washing machines comprises a small close receptacle having inlet and outlet openings for water combined with an open top receptacle whereby the open top provides rapidly a preliminary supply of cleaning fluid. The combined receptacle 20 is shown in Fig. 1 in a, machine for washing dishes comprising a closed vessel in which water collected in the bottom 11 is circulated bya a. pump 18 and sprayed by pipes 13, 14 on to dishes carried by a rack 12. In the combined receptacle shown enlarged in Fig. 2, cleansing material is supplied to the interior and to the open top part perforated at 30. The bottom of the closed part is perforated at 28 and the cover 26 is provided with perforations of varying sizes which may be covered or uncovered by a rotatable plate 26 according to requirements. The water circulated by the pump rapidly washes away the cleansing fluid in the open top receptacle, while that in the interior is used up more slowly.
Patent GB-246839-A (GB)
Title: Improvements in electric switch arrangements for signalling devices on power vehicles
IPC: B60Q5/00
Filed: 1926-01-26
Abstract: 246,839. Kreidel, H., (Assignees of Lub Ges.). Jan. 27, 1925, [Convention date]. Retractive switches for the horns &c. of motor vehicles, mounted on the steering wheel, have the actuating lever f provided with a handle portion g in the form of a downwardly directed cap situated over the centre of the wheel, e.g. over the head d of the screw which secures the wheel to the steering shaft.
Patent GB-251026-A (GB)
Title: Improvements in and connected with the manufacture of mild steel plates, sections, and the like
IPC: C21D1/26
Filed: 1925-01-26
Abstract: 251,026. Martin. F. G., and Wall, A. T. Jan. 26, 1925. Addition to 228,625. Annealing. -The process described in the parent Specification for the treatment of mild steel plates &c. used for the construction of ships is also applied to the treatment of mild steel plates, sections, bars &c. for structures other than ships, e.g. bridges, buildings &e. Specifications 1878/15, 3786/15, and 126,049 also are referred to.
Patent GB-688022-A (GB)
Title: Improvements in or relating to cableways, cable cranes and the like
IPC: B61B7/02
Filed: 1949-01-27
Abstract: 688,022. Overhead travelling hoists; rope grips; rope railways. BRITISH ROPEWAY ENGINEERING CO., Ltd., and SHIELDS. H. P. H. Jan. 20, 1950. [Jan. 27, 1949] No. 2327/49. Classes 78 (ii), 78 (iv) and 104 (ii). Cable systems. A continuously driven endless driving rope 18  (Fig. 1) or 60 (Fig. 4) both traveres the carriage 14 (Fig. 1) or 63 (Fig. 4) and operates the hoisting drum 16 (Fig. 1) or 74 (Fig. 4) of the hoists illustrated. In the arrangement of Fig. 1 each of the runs of the driving rope 18, which is driven by a sheave 22 from a motor 23 and is guided by pulleys 19, 20 and 21, is wrapped on a corresponding sheave 24, 25 on the carriage 14 so that when the carriage is held at rest by a rope grip 27 engaging the track 10 the sheaves 24 and 25 are driven at equal speeds in opposite directions. The sheaves are connected through a differential gear and a variable ratio reversible gear 26 to drive the hoist drum 16. Either of the sheaves 24, 25 may be held against rotation so that the carriage 14 moves with the corresponding run of the rope 18. In the arrangement of Fig. 4 each of two bights of the driving rope passes from a corresponding sheave 62. 69 on the carriage 63 towards opposite ends of the track and the rope passes from the bights over guide pullevs 61, 64, 66, 67,68, 70 and 71 and over driving sheaves 65 and 72 which may be connected to a driving shaft 78 by a clutch mechanism. The clutch mechanism permits both the sheaves 65 and 62 to be driven by the shaft 78 or alternatively either of these sheaves to be driven while the other is held against rotation. When the two sheaves 65, 72 rotate together the rope 60 retains the configuration illustrated while the sheaves 62, 69 on the carriage, which are connected to a variable speed reversible gear to drive the hoist drum 76 as in the arrangement of Fig. 1, are rotated in the same direction at the same speed. When however one only of the sheaves 65, 72 rotates one of the bights passing round the sheaves 62, 69 is shortened and the other lengthened so that the carriage is traversed. Rope grips 73 hold the carriage at rest while the hoist is in use. The system shown in Figure 1 may be controlled from a platform on the carriage 14 or by a remote radio transmitter as described in Specification 688,027 which is referred to. In either of the systems described the speed of the driving rope may be varied to match the characteristics of the motor. Rope grips. In the rope grip of Figure 2 the weight of the load car 35 acts through links 41, 39 to press jaws 38, 37 against the track rope 10. The jaws may be withdrawn from the track rope by a hydraulic piston and cylinder 34, 33. In a further construction Fig. 3 (not shown) a moving jaw is slid to press the track rope against a fixed jaw by a hydraulic cylinder which acts against springs.
Patent GB-580885-A (GB)
Title: Solidifying normally liquid hydrocarbons
IPC: C10L7/02
Filed: 1944-02-08
Abstract: Normally liquid inflammable hydrocarbons are solidified by the formation in situ of a voluminous gel of a metallic soap, by reacting a rosin acid or a salt thereof in solution in the hydrocarbon with a saponification agent which is suspended in the solution in a dry pulverulent form, the preparation being effected in the presence of an alcohol not in excess of 3 per cent. by weight calculated on the amount of hydrocarbon present in the final product.  The mixture may be agitated until saponification is complete or discontinued prior thereto, the saponification being completed whilst the mass is quiescent.  The hydrocarbons to be solidified, and the saponification agents preferably used are all as specified in Specifications 576,180 and 579,568 which are referred to.  The added alcohol is preferably a primary aliphatic alcohol such as methyl or ethyl alcohol.  The use of a colloidmill and slight heating of the mass are described in the above specifications.