baber/WOPTO huggingface dataset:
Patent GB-385745-A (GB)
Title: Rotary impeller pumps having a guide passage or passages arranged laterally of the impeller in the pump casing
IPC: F04D5/00
Filed: 1931-12-30
Abstract: 385,745. Rotary-impeller pumps. SPOOR, W. L. J., 23, Olympiaplein, Amsterdam. Dec. 30, 1931, No. 35979. Convention date, Jan. 12. [Class 110 (i).] The casing of a pump with a rotary impeller and auxiliary circulating liquid is provided wth lateral guide channels of rounded cross-section for such liquid. Fig. 6 shows the inside of one casing half and a portion of the impeller. In this form the lateral guide channel 4<4> for the auxiliary liquid is of general triangular crosssection with rounded corners, the cross-sectional areas 12, 13, 14 diminishing towards the outlet end 5 as shown in the sections off-set on the lines 8-9, 8-10, 8-11 ; the line 15 of centres of such sections extends radially outwards as the outlet 5 is approached. The auxiliary liquid has a general helical flow the projection of which is shown by the dotted line 7<3> in Fig. 5. With a lateral channel 4<2> of semi-circular form as shown in Fig. 4, the flow projection 7<2> is circular. The helical flow may be stabilized by providing in the lateral channel a core 16 with helical vanes 17 of a pitch decreasing towards the outlet, Fig. 7.
Patent GB-435536-A (GB)
Title: Process for the preparation of a material for protecting and repairing teeth and making artificial teeth
IPC: A61K6/884
Filed: 1933-12-21
Abstract: Material for covering and filling teeth and making artificial teeth comprises cellulose derivatives together with insoluble inorganic substances, volatile organic solvents, and if desired softening agents and resins.  The cellulose derivative may be cellulose acetate, nitrate, or butyrate, or benzyl cellulose or other cellulose ester or ether.  The inorganic substance may be calcium phosphate, fluoride, carbonate, or silicate, and the organic solvent may be acetone with camphor, or other softening agent.  For rendering the material visible under X-rays, strontium salts may be added.  Other ingredients may be dyes, pigments, artificial or natural resins.  The composition may be applied by a spatula or as a spray according to consistency.  Coverings, fillings, or crowns may be obtained.  The material may be extruded by means of compressed air or carbon dioxide and it may be smoothed off and dried by the heated gas.  The extrusion device may have one or several containers for different compositions. The filling or crown may be covered by a composition which is free from or contains less inorganic filler, and thus provides a polished surface.ALSO:Material for covering and filling teeth and making artificial teeth comprises cellulose derivatives together with insoluble inorganic substances, volatile organic solvents, and if desired softening agents, resins, pigments, dyes, or strontium salts.  The composition may be applied by a spatula or as a spray according to consistency.  Coverings, fillings, or crowns may be obtained.  The material may be extruded by means of compressed air or carbon dioxide and it may be smoothed off and dried by the heated gas. The extrusion device may have one or several containers for different compositions.  The filling or crown may be covered by a composition which is free from or contains less inorganic filler, and thus provides a polished surface.
Patent GB-176183-A (GB)
Title: An improved direction signalling device for use on motor vehicles
IPC: B60Q1/34
Filed: 1920-12-24
Abstract: 176,183. Drane, M. Dec. 24, 1920. Road-traffic signals on vehicles.-Relates to direction-signal devices for motor vehicles. The indicator member is a casing 10 enclosing an electric lamp 11 and bearing on its front and rear faces the representation of a hand. The casing is carried by a stem 12 which is pivoted to a rod 14. This rod is supported by a double clamp consisting of the members 16, 17 of which the member 16 is secured to the wind-shield frame and the member 17, extending laterally from the member 16, is positioned to engage the rod 14. A tube 20 houses a slidable rod 21 which is provided with a handle 22 projecting through a slot 23 in the tube. The outer end of the rod 21 is screwed into the bar 25 which is slidably mounted in the tube 20 and has its outer end connected by a link 26 to an arm 12a. The rod 21 is operated by the handle 22 which normally rests in the notch 24 and the signal device is swung down into the horizontal position when the rod 21 is moved to the left. A spring 27 is employed for assisting to restore the signal device 10 to the vertical position. The tube 20 is supported by the arm 29 provided for closing the circuit of the lamp 11 through the wire 32 and is automatically controlled by the actuation of the indicator member 10. The tongue 40 is positioned in the path of the handle 22 and when the handle is in the position shown it holds the tongue off the contact 37 so that the lamp circuit is broken. When the handle 22 is operated the tongue 40 completes the lamp circuit through the contact 37. A link 42, which can be swung over to hold the tongue 40 away from the contact 37, is provided in order that the lamp circuit may be broken during the daytimo. Each side of the vehicle is equipped with a signal device and the means for securing the device permits ready adjustment to different widths of cars.
Patent GB-430434-A (GB)
Title: Improvements in or relating to taps or cocks
IPC: F16K5/10
Filed: 1933-12-22
Abstract: 430,434. Taps or cocks. BOLINDERS FABRIKS AKTIEBOLAG, 10, Kaplansbacken, Stockholm.-(Assignees of Bilde, E.; 66, Norr Malarstrand, Stockholm) Dec. 22, 1933, No. 36193. Convention date, March 22. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 24, 1934.] [Class 135] A tap or cock, particularly for gas stoves, comprises a rotary apertured plug 2 mounted in a casing 1 with a projecting flange 7 which forms a bearing for an actuating member 5 having a pin-and-slot connection with the flange 7 and separate from but adapted to rotate with the plug 2. A square or other non-circular sectioned recess 4 in the member 5 houses a spring 3 which presses against a squared part 6 on the plug 2, separation of the parts 2, 5 being prevented by a pin 11 extending through a flange 10 into the boss 9 on the member 5 and engaging a slot 12 in the flange 7. One or more axially-extending recesses opening from the slot are provided so as to be engaged by the pin for maintaining the plug in predetermined angular positions. A removable cover-member 21 protects the plug and its casing and a plate 23 covers the aperture 22 in the plate 21 and protects the pin 11. An indicating marking may be placed on the plate 23.
Patent GB-493415-A (GB)
Title: Hydrocarbon fuel treater
IPC: F02M27/00
Filed: 1937-12-31
Abstract: 493,415. Electrolytic treatment of hydrocarbon fuel. McMANUS, JUN., A. E. Dec. 31, 1937, No. 36281. Convention date, March 20. [Class 41] The fuel is treated before supply to a motor by passage first between electrodes of a metal such as lead near to hydrogen in the electrochemical series and a material such as carbon electropositive to hydrogen connected to form a couple and then beteeen an electrode of lead or the like and an electrode of electropositive metal such as zinc forming another couple. In the apparatus shown the fuel enters at 20, passes downwardly through a lead cylinder F divided by a diametral carbon plate G and then upwardly between the lead cylinder F and a zinc cylinder H connected to it by a conductor 34 to the outlet 33. The cell comprises two parts B, C jointed by flanges 9, 10. The electrodes are mounted between an upper insulating disc 17 and a lower insulating disc 18 provided with apertures 22, 29 and mounted on a spacing member D enclosing a sump 14 which may be drained by a pet-cock 16. The cylinder H is provided with a slot 28 to permit filling of the whole container. Instead of lead there may be used antimony or bismuth or alloys of lead with these metals or with cadmium. Instead of carbon there may be used copper, silver, gold or platinum. Instead of zinc there may be used cadmium or aluminium.
Patent GB-1166352-A (GB)
Title: Improvements in Sense Amplifier Arrangements.
IPC: H03F3/195
Filed: 1967-08-08
Abstract: 1,166,352. Magnetic data storage apparatus; semi-conductor circuits. AMPEX CORP. 8 Aug., 1967 [8 Aug., 1966], No. 36431/67. Headings H3B and H3T. A sense amplifier, for a coincident-current read-out magnetic memory of the type having a common drive-sense line, includes means for eliminating the effect of the drive current in the amplifier during readout. A row driver supplies drive current to row drive winding 14 and dummy line 21 in parallel and due to imperfect matching of diodes 25, 26 this generally results in a voltage difference between inputs 30a, 30b to sense amplifier 30. The amplifier (Fig. 4) includes a differential amplifier stage 40 with transistors Q1 to Q8, preferably in integrated circuit form, providing an output at 40a, 40b. It is stated that the differential gain of the R5+R7 amplifier is . Transistors Q3, Q4 may R1 be omitted, and a temperature sensitive resistor may be connected across R1. Initially, when the row drive current has been initiated but before the column drive current is supplied, transistors Q9, Q10 of a clamp circuit 46 are conductive, earthing the emitters of these transistors. As a result capacitors C1, C2 are charged to voltages representing the amplified voltages at inputs 30a, 30b, but discriminator 42 receives no input. When column drive current is supplied the selected core 11 (Fig. 1) is switched and a signal input is supplied on line 14 to the sense amplifier. A strobe pulse is applied at 65 to the clamp circuit to switch off transistors Q9, Q10. The signal is then amplified in 40 and passed by the capacitors C1, C2 to discriminator 42 and output amplifier 44, while the effect of the drive currents on lines 14, 21 is eliminated by the previous charges on the capacitors. In order to allow the capacitors to charge to voltages of opposite polarities a second clamp circuit may be provided, including NPN transistors and controlled by a negative strobe pulse.
Patent GB-1353085-A (GB)
Title: Thermosetting epoxy resins
IPC: C08G59/68
Filed: 1971-08-03
Abstract: 1353085 Curable compositions GENERAL ELECTRIC CO 3 Aug 1971 [3 Sept 1970] 36450/71 Heading C3B [Also in Divisions B1-B2] A curable composition comprises (I) an epoxy resin, (II) a phenolic accelerator present at 0À1-15% by wt. of I and (III) an organic titanate present at 0À05-10% by wt. of I. I may be a cycloaliphatic epoxy resin, e.g. 3,4-epoxycyclohexylmethyl - 3,4 - epoxycyclohexane carboxylate, a diglycidyl ether of a polyhydric phenol, a diglycidyl ester or an epoxy novolac resin (or mixtures thereof). II may be catechol, bisphenol A, resorcinol, hydroquinone, phenol-formaldehyde condensate or a chloro- or bromo-phenol. III may be a chelated titanate, e.g. acetylacetonate titanate, triethanolamine titanate, polyhydroxystearate titanate or a glycol titanate. Non-chelated titanates, e.g. tetraisopropyl, tetrabutyl, polymerized tetrabutyl, tetrastearyl or tetrakis (2-ethylhexyl) titanate, may also be used. Uses.-Electrical insulation.
Patent GB-970807-A (GB)
Title: Improvements relating to furnaces
IPC: C21D1/74
Filed: 1963-09-17
Abstract: 970,807. Continuous heat-treatment furnaces. J. FALLON. Sept. 17, 1963, No. 36458/63. Heading F4B. A continuous heat-treatment furnace comprises preheating, treating and cooling chambers 15, 17 and 19 respectively, each preceded by transfer chambers 14, 16 and 18, all said chambers being of equal length and provided with doors 21-27, and a continuous conveyer 10 carrying blocks of work supports 20 capable of occupying said length and alternating with appropriate empty spaces. Chambers 15 and 17 are heated by gaseous currents circulated by fans upwardly through the work and downwardly over gas-fired radiant tubes 28 back to the fans. Chamber 19 has fans 33 circulating cooling gas through the ware and through heat exchangers to cool the gas. Chamber 17 may be provided with an active gas for carburizing, de-carbonizing or other treatment. The conveyer comprises strands 10a-10d carrying the supports 20. Doors 23, 25 and 27 may be opened simultaneously by common operating mechanism if desired. Nitrogen may be used in chambers 15 and 19 and a gas with a substantial hydrogen and moisture content in chamber 17.
Patent GB-1437724-A (GB)
Title: Low pressure die casting
IPC: B22D18/08
Filed: 1973-08-02
Abstract: 1437724 Pressure die casting SOAG MACHINERY Ltd 1 Aug 1974 [2 Aug 1973] 36724/73 Heading B3F [Also in Division F1] In a low pressure die casting process in which molten metal 2 in a furnace 1 is forced up a tube 4 into a die 3 by gas pressure applied to the surface of the metal 2, the said pressure is dependent on the time taken to exhaust the gas from the furnace 1 after the previous casting operation. To initiate a casting operation, solenoid actuated valves 11 and 19 are energized simultaneously to permit gas to flow into the furnace 1 from pressure gas sources 8 and 13 via pressure control valves 9 and 14, accumulators 10 and 15, and pipes 6 and 7. When the metal nears the top of the tube 4 a pressure actuated switch 12 operates to deenergize the valve 11 and thus cut-off the flow of gas into the furnace via the pipe 6. Filling of the die 3 now proceeds by virtue of the gas supplied through pipe 7 alone. After the die has been filled, the pressure in the furnace is maintained for a predetermined time after which the valve 19 is de-energized to operate valve 17 to open the vent 44 to exhaust the furnace. When the furnace pressure starts to fall a differential pressure switch 32 changes its state and energizes valves 25 and 27. The gas stored in an accumulator 24 expands via pipe 20, valve 25 and pipe 33 into an accumulator 26 while the at same time the pressure in both accumulators 24 and 26 begins to rise at a rate determined by a flow control valve 28 (the gas coming from a source 30). When the furnace pressure has fallen to a predetermined level, a pressure switch 31 changes its state and de-energizes the valves 25 and 27 which return to the position shown. The pressure built up in accumulator 24 is locked in by a non-return valve 23 to provide a pilot pressure for the pressure control valve 14 which is thereby adjusted for the next casting operation. At the same time the pressure built up in the accumulator 26 is vented at 45 through valve 27. When the furnace 1 is recharged with metal after completion of a casting series, the valve 25 is operated to vent the accumulator 24, and an initial pilot pressure determined by a valve 21 then set up in the accumulator 24. In another embodiment, Fig. 2 (not shown), the valve 29 is replaced by a pressure intensifier (40).
Patent GB-1306953-A (GB)
Title: Waste cones for spindles
IPC: D01H1/38
Filed: 1970-07-30
Abstract: 1306953 Spindle waste cones MASCHINENFABRIK RIETER AG 30 July 1970 [6 Aug 1969] 36832/70 Heading DID A spindle waste cone 2 has a flange 5 of larger radius than the cone to retain the thread wound thereon. A depression 7 in the flange 5 is a snap fit, by means of detents 9 in a groove 10, in an opening 8 in the cone 2. Slots 4 are provided to facilitate removal of the thread by cutting if necessary. In place of the flange 5 pivoted fingers (16) may be provided, Fig. 2 (not shown), whose ends (19) are elastic. The tops of the fingers slope downwardly. and inwardly so that the tube (21) forces them outwards when it is donned.
Patent GB-1429567-A (GB)
Title: Lawn mowers
IPC: A01D34/63
Filed: 1973-08-03
Abstract: 1429567 Lawn mowers G D MOUNTFIELD LTD 10 July 1974 [3 Aug 1973] 36891/ 73 Heading A1F A lawn mower comprises a cover 1 and a grass box 7 fed through an opening 5 with which is associated a deflector plate 13 attached to one end of a pivotably mounted lever 10 having an operating handle 11'. A catch 12, arranged to hold the grass box 7 in position, when fitted, maintains the lever such that the deflector plate is inoperative. Removal of the grass box from the cowl frees the lever which is arranged to pivot so that the deflector plate becomes operative. For Figures see next column
Patent GB-1436007-A (GB)
Title: Process for the dyeing of synthetic fibrous material from  organic solvents
IPC: D06P1/92
Filed: 1973-08-03
Abstract: 1436007 Anthraquinone dyestuffs HOECHST AG 3 Aug 1973 [4 Aug 1972] 36951/73 Heading C4P [Also in Division D1] Dyestuffs of the general formula wherein X is an oxygen or sulphur atom or a sulphonyl group, m is 1, 2 or 3, n 1  and n 2 , which may be the same or different, each represents 0 or 1, R 1  and correspondingly R 2  which may be the same or different, each represents, when n 1  or correspondingly n 2  is zero halogen, or a cyano, cyanate or rhodamide group or each represents when n 1  or correspondingly n 2  is 1 alkyl, cycloalkyl, aryl, aralkyl, alkylaryl, hydroxyalkyl, hydroxycycloalkyl, hydroxyaryl, hydroxyaralkyl, hydroxyalkylaryl, mercaptoalkyl, mercaptocycloalkyl, mercaptoaryl, mercaptoaralkyl, mercaptoalkylaryl, hydroxyalkoxyaryl, hydroxyaryloxyalkyl, hydroxyalkylmercaptoaryl, hydroxyarylmercaptoalkyl, mercaptoalkoxyaryl, mercaptoalkylmercaptoaryl, mercaptoaryloxyalkyl, mercapto-arylmercaptoalkyl, alkoxyaryl, alkylmercaptoaryl, alkyl-sulphonylaryl, aryloxyalkyl, arylmercaptoalkyl or aryl-sulphonylalkyl, the alkyl moieties having 2 to 18 carbon atoms and may be further substituted, and when n 2  is 0, R 2  may also be an optionally substituted tetrafluoroalkoxy, trifluoralkyl or carboxylic acid alkyl or cycloalkyl ester, the alkyl moieties in the alcohol radical of the ester containing 2 to 18 carbon atoms are used for dyeing synthetic fibres. They may be prepared by reacting a 1 - amino - 2,4 - dibromoanthraquinone with an amine, e.g. #-phenyl-ethylamine or benzylamine to replace the 4-bromo-atom by an amine radical and then the 2-bromo atom may be replaced by reaction with a thiophenol, ethanesulphinic acid, phenol or 4-methoxy-thiophenol.
Patent GB-1428725-A (GB)
Title: Material dispensing apparatus
IPC: A01C7/08
Filed: 1973-08-03
Abstract: 1428725 Mixing apparatus H WEISTE 3 Aug 1973 [24 Aug 1972] 36985/73 Heading B1C [Also in Division B8] Granular material enters an annular portion of a dispenser from at least one hopper and is mixed and conveyed around the annular portion by rotation of the outer wall 5 thereof relative to the inner wall 7 until it reaches a deflector, preferably provided with air holes for fluidisation of the material leading the material through a gap in the inner wall to a central aperture 6 cooperating with an ejector unit comprising an air supply duct 10 above the aperture and a material feed duct 9 below the aperture. The apparatus may be used to dispense mixtures of granular materials from agricultural supply machines. 1428736 Coated glassy or crystalline material CARL-ZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 18 April 1973 18816/73 Heading B2E [Also in Divisions C1 and C4] A glassy or crystalline material, which is essentially a homogenous, single-phase material and exhibits phototropic properties when applied in a thin layer of up to 50um in thickness to a translucent support, consists of 1-60 gram atom % of copper, 2.65 gram atom % of silver, 8.85 gram atom % of chlorine and/or bromine, and optionally one or more additives chosen from Zr, Si, Mg, Al, La, Se and Te. The material may be applied to the support, which may be glass, polyvinylbutyral or polymethylmethacrylate, by e.g. vapour deposition from a melt at 675-880C. The material may correspond to a eutectic mixture of silver bromide and copper bromide. The optional additive may be capable of shifting the spectral sensitivity of the material (i.e. Se or Te), and the said additives preferably should not total more than 35 parts by weight, over and above a total of 100 parts by weight of Cu, Ag, Cl and Br. The coated product may have a protective overcoating of glass, SiO 2 , magnesium fluoride or thorium fluoride, to improve scratch resistance. The product may be used as a lens or window pane.
Patent GB-1464106-A (GB)
Title: Heating apparatus
IPC: F28D15/02
Filed: 1975-08-15
Abstract: 1464106 Heat transfer devices HUNT & MOSCROP Ltd 15 Aug 1975 [23 Aug 1974] 37076/74 Addition to 1417991 Heading F4U [Also in Division F2] A roller comprising an outer cylinder 1 and an inner cylinder 2 has the annular space 5 between these exhausted to below atmospheric pressure and containing a volatile oil 7 which is heated to transfer heat to the surface of the cylinder 1 by latent heat from it condensing. The heating of oil 7 is by a heating medium, such as steam or oil, or electric heating elements in an annular space 8 between the cylinder 2 and a further cylinder 3. Baffles 5a cause the oil to circulate as the roller  rotates.
Patent GB-642536-A (GB)
Title: Improvements in or relating to boxes
IPC: A45C11/34
Filed: 1946-12-18
Abstract: 642,536. Boxes. ROBIN, M. H. Dec. 18, 1946, No. 37214. [Class 18] A box with a roll-type lid comprises complementary moulded elements A, B, C, which, when assembled, provide opposed longitudinal channels forming the tracks for the lid. The upper run of each channel is formed by the underside of the top a<1> of the outer shell A, the top of the side wall bl of the lining B, and the inner face of a locating shoulder F. The lower run of each channel is bounded by the bottom of the lining B, a ledge V of the base member C, and the inner face of a lip R on that member. The semi-circular connecting part of each channel is bounded by the edge of a web Q, ledges V and W, and surfaces G, T. The lid X is preferably constructed as in Specification 593,961. Compartments N and O of the lining B are closed by a lid Y. This lid can be rocked upon a partition L, by pressure' on that part of the lid above compartment O (which may be left empty) to expose the contents of compartment N. A trough Z may be formed in lid Y.
Patent GB-1481063-A (GB)
Title: Constant speed regulators for electric motors
IPC: H02P7/288
Filed: 1974-08-27
Abstract: 1481063 Automatic control of speed MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 27 Aug 1974 [10 Sept 1973] 37312/74 Heading G3R In a D.C. motor speed regulating system having an amplifier, e.g. a transistor, in series with the motor and controlled by a D.C. signal proportional to motor speed, so as to regulate the speed, an A.C. feedback from one of the motor terminals to the control is used to multiply or offset any ripple in the D.C. control signal. As shown, a signal from motor tachometer 2, having a frequency dependent upon motor speed, switches transistor 4, whose output is differentiated by circuit 6, 7 to trigger multi-vibrator 8. The resultant is integrated by circuit 9, 10 to produce the D.C. control signal that is used to control transistor 20 in series with D.C. motor 1, and thus regulate motor speed. The A.C. feedback path is provided between points h' and e' by series RC circuit 21, 22. The speed control circuit is fed from battery 17 via resistor 19, the resultant voltage being regulated by Zener diode 18.
Patent GB-1479807-A (GB)
Title: Closed container
IPC: B65D1/22
Filed: 1975-09-10
Abstract: 1479807 Moulded containers PINCKNEY MOULDED PLASTICS Inc 10 Sept 1975 [21 Oct 1974] 37312/75 Heading B8T [Also in Division E2] A container which may be of moulded polyethylene has side walls and a rear wall formed of outwardly stepped sections a, b, c to enable the containers to be nested and also has male and female snap connectors 30, 32 so that one con tainer can be turned end-for-end and invertec and joined to a lower container thereby forming a closed container. When nested an upper container have rests on projections 24 on the base of a lower container. Apertures 50 in the side walls accommodate fingers when the containers are lifted. Projections 52 around the finger holes and ribs 60 on the side walls ensure that an inverted container is safely located on a lower container. The snap connections have flat engaging shoulders 38, 44 on the male and female portions and have part-spherical camming surfaces to facilitate their release. The container base is of grid form to assist cleaning.