baber/WOPTO huggingface dataset:
Patent GB-671561-A (GB)
Title: Improvements in infinitely variable friction wheel gears
IPC: F16H15/14
Filed: 1950-01-23
Abstract: 671,561. Variable-speed gearing. BEIER, J. Jan. 23, 1950 [Nov. 2, 1949], No. 1764/50. Class 80 (ii). In a continuously-variable friction gear comprising a central shaft 13 carrying a set of friction discs 2 with conical contact rims 3 interengaged, under axial pressure, with sets of conical friction discs 1 carried by a series of outer shafts 4 arranged at a variable distance from the shaft 13, there are maintained between the co-operating surfaces of the discs films of a liquid having a relatively high viscosity, such as lubricating oil, through which the power is transmitted by fluid friction, the axial pressure being sufficently high to increase the viscosity at least several hundredfold but not so high as to squeeze out the film. It is stated, for instance, that in an oil film at 20‹ C. subjected to a pressure of 5,000 kg/cm<SP>2</SP> the viscosity becomes 100,000 times that at atmospheric pressure. The discs 2 are splined on the hub of one end disc 10, axial pressure being applied to the other end disc 9 both by a spring 6 and by torque-responsive cam means 7, 8 between the disc 9 and the shaft 13. To ensure uniform film thicknesses and uniform distribution of pressure, the various discs are as thin as possible and capable of slight tilting movement on their splines. The oil may be supplied to the surface of the discs 2 through passages 16, 17, 18 or the discs may dip in an oil bath. The oil is super-cooled so as to increase-its viscosity, and the latter may be further increased by the addition of sublimated sulphur, colloidal graphite, chlorinated diphenyl, &c. The surfaces of the discs may be chemically or mechanically treated so as to facilitate adhesion of the liquid, such as by chromium plating. Specification 524,598 is referred to.
Patent GB-1287191-A (GB)
Title: Liquid clarification unit
IPC: B01D21/04
Filed: 1970-01-14
Abstract: 1287191 Separating apparatus; hydrocyclones BAUER BROS CO 14 Jan 1970 [15 Jan 1969] 1823/70 Headings B1D and B2P Used machine tool coolant enters tank (4) along a wide inlet formed by hopper 5 so as to spread across the tank allowing heavy solids to sink to the floor, pump unit (16), 17 draws coolant and unsettled solids from above the floor at one end of the tank and delivers them to hydrocyclones 26, connected in parallel and arranged to return concentrated solids to the tank via a hopper 31 and to discharge clean coolant at 30, the concentrated light solids then settling in tank (4) and an endless conveyor 13, 23 moving all the settled solids along the tank floor and up ramp (19) at the opposite end. The conveyor comprises a central chain 13 driven by motor 15 and carrying blades 23, each of which is scraped clean by biassed blade (22) as it clears the top of ramp (19) to discharge the solids (Fig. 1, not shown). Pump (16) has its inlet above another ramp (18) clear of the conveyor, where no heavy solids will settle. The level in tank (4) may be maintained by pump (16) being floatcontrolled.
Patent GB-1498493-A (GB)
Title: Electrochemical reduction of alpha,beta-unsaturated keto-steroids
IPC: C25B3/25
Filed: 1975-01-16
Abstract: 1498493 Electrochemical reduction of steroid double bonds SCHERING AG 16 Jan 1976 [16 Jan 1974] 1876/75 Heading C2U [Also in Division C7] The electrolytic reduction of a steroid nuclear double bond in the α,#-position to a keto group without reduction of that group is effected by electrolysis in the presence of a nitrogenous solvent selected from liquid ammonia, aliphatic amines and hexamethyl phosphoric triamide, and their mixtures, and of a compound in which R 1  to R 4  are alkyl, aryl or aralkyl, M is alkali metal, M<SP>1</SP> is alkaline earth metal and X is halogen, tetrafluoborate, perchlorate, alcoholate or alkyl- or aryl-sulphonate. Non-conjugated keto groups and other double bonds are also reduced and if the electrolysis is prolonged the conjugated keto group is also reduced. Specified groupings are #<SP>4</SP>-3-keto, #<SP>1</SP>-3-keto, #<SP>1,4</SP>-3-keto, #<SP>8</SP>-11-keto and #<SP>4,6</SP>-3-keto. A solubilizer may also be present, e.g. an ether or cyclic ether, DMF, acetonitrile, propylene carbonate, sulpholan, pyrrolidone, aniline or hydrazine. Examples describe the preparation of 5α- androstan-17#-ol-3-one; 5α-estran-17#-ol-3-one; 1α - methyl 5α - androstan - 17# - ol - 3 - one; pregnan - 20α - ol - 3 - one; 3 - methoxy - estra- 1,3,5(10) - trien - 17# - ol - 11 - one; and 22α- spirostan - 3# - ol - 11 - one; and in one the first of these is subsequently reduced to 5α- androstane-3#,17#-diol.
Patent GB-601436-A (GB)
Title: Improvements in wing nuts
IPC: F16B37/16
Filed: 1946-01-19
Abstract: 601,436. Making nuts. CRANFORD MANUFACTURING CO., Ltd., and CLARKE, W. Jan. 19, 1946, No. 1895. [Class 83 (ii)] [Also in Group XXV] Wing nuts are produced from sheet metal blanks of disc form with laterally extending lugs. The blank is flanged to produce a part-circular flange 1 merging into the flanges 2 of the channel section wings that are bent up simultaneously with the formation of the flanges. The centre is pierced to form a hole surrounded by a flange 5 that is tapped.
Patent GB-762200-A (GB)
Title: Improvements in and relating to the production of aluminium alkyls
Inventor: SMITH PETER
IPC: C07F5/06
Filed: 1954-01-22
Abstract: Aluminium is reacted with at least one primary alkyl halide (as defined below) in the presence of an inert solvent to form a sesquihalide, and the so-formed sesquihalide is reacted with an alkali-metal in the presence of an inert solvent to form an aluminium alkyl.  Primary alkyl halides specified are methyl chloride, bromide and iodide, ethyl chloride, bromide and iodide, propyl bromide and iodide, n-butyl bromide and iodide and isobutyl iodide.  In the first step a small quantity of the sesquihalide may be present as a reaction initiator.  An alloy of magnesium and aluminium containing a low proportion of magnesium may be used.  The temperature at which the first step is conducted should not exceed 50 DEG  C., while the second step may be carried out at about 100 DEG  to 150 DEG  C. Solvents free from aromatic compounds such as paraffinic and alicyclic hydrocarbons are preferred (e.g. decalin, methyl cyclohexane).  The sludge of alkali metal chloride and aluminium obtained in the second step may be recycled back to the first step with, if desired, addition of further aluminium. Any complex alkali metalaluminium-alkyl present in the sludge reacts with the aluminium sesquihalide to give the alkali metal halide and the desired aluminium alkyl.  The reactions should be conducted in the absence of moisture using dry materials and in an inert atmosphere, e.g. nitrogen.  Example 1 describes the preparation of aluminium triethyl from aluminium and ethyl bromide in methyl cyclohexane to give ethyl aluminium sesquibromide, which is reacted with a sodium-potassium alloy to give the desired product.  The Provisional Specifications are not restricted to the preparation of aluminium alkyls, but the process of the invention is applicable to the preparation of alkyls, aryls and aralkyls of metals of Group III of the Periodic Table (aluminium, gallium, indium and thallium2).
Patent GB-767920-A (GB)
Title: Improvements in fuel supply systems for pulse or ram jet engines
Inventor: THARRATT CHARLES EDWARD
IPC: F02K7/10
Filed: 1954-01-22
Abstract: 767,920. Jet propulsion plant. SAUNDERSROE, Ltd. Jan. 6, 1955 [Jan. 22, 1954], No. 1994/54. Class 110 (3). In a fuel supply system for a ram or pulse jet engine, operation of the starting handle closes the electrical ignition circuit and simultaneously causes a supply of compressed air to be released from a storage bottle, part going directly to the engine and part serving to eject fuel from a reservoir into the engine. The engine is stopped by manual closure of a fuel valve. As shown, when the starting valve 20 is opened, compressed air from the bottle 16 passes directly to the engine 10 through pipe 12 and at the same time expels fuel from the reservoir 23 into the injecter 13 along the pipe 14. The spark plug 38 is also energized and as the engine rotates the engine drives fuel pump 27 and transfers fuel from tank 24 to the engine. The output pressure of 27 closes valve 19 and cuts off the compressed air supply to 10 which runs on fuel from 27 and atmospheric air. Specifications 753,544, [Group XXXIII], 753,545 and 751,109, [Group XXXIII], are referred to.
Patent GB-885322-A (GB)
Title: A process of fabricating transpiration cooled turbine blades and the blades producedthereby
IPC: F01D5/18
Filed: 1958-01-21
Abstract: 885,322. Powder metallurgy. FEDERALMOGAL-BOWER BEARINGS Inc. Jan. 21, 1958 [Jan. 31, 1957], No. 2006/58. Class 82(1). [Also in Groups XXII and XXVI] A transpiration-cooled turbine blade comprises a load-carrying metal strut having a body portion and spaced lands which project from at least one face of the body portion, a thin uniformly permeable sintered stainless steel shell being bonded to the outermost surfaces of the lands so that coolant fluid passageways are formed between the sides of the lands, the surface of the body portion of the strut and the permeable shell. The metal strut 9 is shown in Fig. 2A and comprises a body portion 11 and integral spaced lands 13, being formed as a casting of cobalt-base alloy, the spaces between the lands being indicated at 19. An integral root portion 21 is formed at the root end of the strut, openings 25 being formed between the root portion and the strut. The outer faces of the lands 13 are then coated with a pure metal, for example they may be electroplated with nickel. The strut is then inserted in the cavity 33 formed between the die members 27, 29 and the injection header section die 31, and the spaces 19 and the spaces 35a at the leading and trailing edges are then filled with refractory material by pressure injection. The refractory material may be a ceramic composed of magnesium oxide, polyvinyl alcohol and methyl cellulose. After moulding, the ceramic-filled strut is as shown in Figs. 4 and 5, and this is inserted into the cavity formed by the faces 42, 44 of the two parts of a sintering mould 37, Fig. 6. Stainless steel powder such as described in Specification 762,267 in which the particles are each substantially completely spheroidal in shape is then inserted into the space between the ceramic-filled strut and the walls 42, 44 of the mould cavity and the assembly is then placed in a sintering furnace and sintered in a hydrogen atmosphere in two stages, the blade being removed from the mould for the second stage. The ceramic material is finally removed from the cooling fluid passages by mechanical vibration at sonic or supersonic frequencies, the completed blade being shown in Figs. 8 and 9 having a solid stainless steel member 57 welded at the tip of the strut 9, and porous shell 55. Specification 640,457 also is referred to. Reference has been directed by the Comptroller to Specification 619,634.
Patent GB-323132-A (GB)
Title: Improvements in or relating to machines for working dough and other materials used in making bread, confectionery and the like
IPC: A21C1/02
Filed: 1929-01-21
Abstract: 323,132. Hauser, W. F. Jan. 21, 1929. Stationary mixers with stirrers having complex motions.-A mixing machine for confectionery comprises means for giving the beater a conical movement about an axis which has a rotary motion about another shaft. The beater shaft 4 is mounted in a universal joint 3 on an arm 2 on the main shaft 1. The upper end of the shaft 4 passes through an eye 6 mounted on a shaft 7 driven by planet gearing 9, 10 from the shaft 1. In a modification a pinion is interposed between the gears 9, 10 the shafts 1 and 7 then rotating in opposite directions.
Patent GB-363186-A (GB)
Title: Improvements in or relating to window regulators
IPC: E05F11/06
Filed: 1931-01-21
Abstract: 363,186. Window-regulators. KATO, K., 287, Shimoogikube, logimachi, WAKE, J., 1454, Iriyamazu, and KABUSKIKIKAISHA FUJI SASH SEISAKUSHO, 165, Araizyuko, both in Iriari-machi, both in Tokio-Fu, Japan. Jan. 21, 1931, No. 2100. [Class 20 (iii).] A window-regulator for sliding or pivoted windows of the kind comprising a slidable guided rod connected to the sash and actuated by a lever 5 and pin &c. 7 engaging a slot in the member 2 attached to the rod, is characterized by a slot so shaped that the operating lever is automatically retained in the extreme positions. As shown in the Figure, the slot has inclined or flared edges so that the thrust on the lever is through or beyond the pivot 5<1> in the extreme positions and cannot move the lever. In a modification, the member 2 has a flanged roller supporting a pivoted weighted lever by which the weight of the sash is partially compensated.
Patent GB-261123-A (GB)
Title: Improvements in or relating to transmission gearing
IPC: F16H3/04
Filed: 1925-08-26
Abstract: 261,123. Ahlm, C. E. F. Aug. 26, 1925. Variable-speed gearing; clutches, claw.-A twospeed gear comprises driving and driven shafts &c. 2, 3 extending outwardly adapted to be connected alternatively through, a sliding dental clutch sleeve 7 and an internal and external toothed ring 15, which turns on a fixed eccentric axis formed by an enlargement 21 on one side of the driving-shaft bearing. The ring 15 is in constant mesh with a pinion P solid with the shaft 2, and also with an internally toothed ring P<3> upon a loose sleeve 23. The sleeve 7 has a ring of internal teeth 9 constantly meshing with long teeth 11 upon a driven member 3, and a ring of teeth 8, Fig. 2, which can be meshed alternatively with teeth 10 and teeth 25. The teeth 10 are fast on the shaft 2, this engagement, shown in Fig. 3, giving the direct drive. The teeth 25 are upon the gear sleeve 23, for a reduced speed, a configuration shown in Fig. 1. To facilitate the shifting of the clutch sleeve 7, the ends of the teeth in the clutch rings 10 and 25 are staggered, as shown in Figs. 1 and 2, alternate teeth projecting, and alternate teeth of the ring 8 are omitted. The rings 23 and 15 are supported on spaced roller bearings, and the end bearings 4, 6 may be adapted to take thrust. The spur gearing may be within an inner casing 13, Fig. 3, oil being splashed from a sump 28 in the outer casing 1 through apertures 217, 29. When used as auxiliary series gearing upon a vehicle means are employed to prevent the gearing remaining in neutral. Such means forms the subject-matter of Specification 265,881. Thus a striker 52, Fig. 3, may slide on a guide 50 and be connected by springs 63 to the end of a control lever 65. A spring plunger, not shown, may hold the striker in its two gear positions. In the form shown in Fig; 1, the striker 30 is pivoted and has a cam arm 32 adapted to be held in its extreme or gear positions by a spring plunger 34. There is a spring connection between the striker shaft 30' and control lever 39. This control means is not claimed.
Patent GB-859766-A (GB)
Title: Getter flashing mechanism
IPC: H01J7/18
Filed: 1959-01-20
Abstract: 859,766. Making electron and like tubes. SYLVANIA ELECTRIC PRODUCTS Inc. Jan. 20, 1959 [Jan. 22, 1958], No. 2147/59. Class 39(2). A machine for flashing a getter in an electron tube or the like comprises means for discharging the tube into a shoot provided with a stop for arresting travel of the tube, a getter flashing coil so placed as to be opposite the getter holder in the tube when this is arrested by the stop and means for bringing the stop into and out of operative position in timed relation with the tube discharging means. The apparatus may be combined with a turret machine for exhausting and sealing off the tubes. In the form shown, a tube supported in a cup 26 surrounding the tubulation is sealed off by burners 16. The cup 26 is carried by a plate 20 pivoted to a reciprocating rod 11 and having a roller 36 movable in a cam slot 38 in a fixed plate 40, so that upward movement of the rod 11 causes the plate 20 to tip into the position shown and discharge the tube into the shoot 52 down which it slides into enagagement with a stop 81 on a rocker arm 58 pivoted at 72 and carrying a further stop 60 at the opposite end. The arm 58 is connected to a transverse lever 88, the other end of which is held between springs 96, 98 on a rod 82. The spring 98 extends between a stop 94 on the rod and the lever 88 and the spring 96 between the lever 88 and a block 85 sliding on the rod 82 and carried by an arm 50 secured to the top of the rod 11. Downward movement of the rod 11 brings the plate 20 back to horizontal position to receive the next tube and at the same time rocks the lever 58 to withdraw the stop 81 from the shoot and interpose the stop 60, whereupon the tube slides into position to be flashed by the induction coil 70 which may be continuously operated. Upward movement of the rod 11 then discharges the next tube into the shoot to come against the stop 81 and releases the flashed tube by removal of the stop 60.
Patent GB-650855-A (GB)
Title: Telemetering with phase modulation
IPC: H04B7/12
Filed: 1948-08-24
Abstract: 650,855. Electric indicating systems. BENDIX AVIATION CORPORATION. Aug. 24, 1948, No. 22320. Convention date, Oct. 28, 1947. [Class 40 (i)] [Also in Group XL (c)] In a telemetering phase-modulation system, the reference wave and the signal wave, i.e.,the reference wave phase-modulated in accordance with the variable to be transmitted, are sent over separate channels by means of carriers of different frequency and at the receiver compared in a phase discriminator. Radio or line transmission may be used. Transmitter, Fig. 1. The output of an oscillator 12 at frequency f1 is frequency tripled at 13, and doubled at 14, to produce a carrier wave at frequency 6f1, which is modulated at 16 by the reference wave derived from oscillator 18, and radiated from aerial 10. The reference wave is also fed in parallel to phasemodulators 22-25 controlled respectively by the variables whose values are to be transmitted. The phase-modulated signal waves thus produced pass through phase compensators 42-45, and are fed in turn by a continuouslyrotating sequence switch 30 to a modulator 17 also fed from a frequency tripler 15 with a carrier wave at frequency 9f1. The reference wave generator 18 is also connected directly to contact 1 of the sequence switch which is angularly longer than the remaining contacts, so that during each rotation of the sequence switch, the carrier 9f radiated at 11 is modulated in turn by the various signal waves and then by the reference wave for a slightly longer period. Receiver, Fig. 2. The carriers are separately received at 50, 51, amplified at 52, 53, heterodyned at 54, 55 with a wave from a common local oscillator 60 of frequency 7.5f to produce an intermediate frequency of 1.5f in both receivers. The two I.F.'s are amplified respectively at 56, 57, detected at 58, 59 and the two outputs fed to a phase discriminator 62 which feeds a voltage or current to a recording meter 63 in proportion to the phase difference between the reference and signal waves. The discriminator, Fig. 4, may comprise transformers 66, 71 through which the reference and signal waves are respectively applied in anti-phase and like phase to load resistors 70 through rectifiers 68, 69, the voltage across the resistors varying in magnitude and sense according to the magnitude and sense of the phase difference.
Patent GB-114166-A (GB)
Title: Improvements in or connected with Carburettors for Internal combustion Engines.
Inventor: ROBINSON REGINALD PERCY
IPC: F02M17/02
Filed: 1917-08-16
Abstract: 114,166. Robinson, R. P. Aug. 16, 1917. Spray carbarettors. -The flow of fuel is controlled by a tapered groove m in a conical plug i, the spindle h of which carries a valve k for controlling an airinlet port f and, if desired, a sectorshaped valve s for controlling the mixture-outlet port g. The spindle is actuated by a lever q, and the plug i is forced to its seat by a spring t. The airinlet port is provided with a longitudinal V-shaped groove r through which air is admitted in t h e closed position of the valve k. This valve is provided with a sleeve l which extends through the cover c to permit of the valve being adjusted by a lever p relatively to the plug i. The groove m is controlled by the edge of a recess n. Reference has been directed by the Comptroller to Specification 95641/13.
Patent GB-671246-A (GB)
Title: Electrical eyelet cable connectors
IPC: H01R4/18
Filed: 1950-01-30
Abstract: 671,246. Cable and wire terminal. AIRCRAFT-MARINE PRODUCTS, Inc. Jan. 30, 1950 [Feb. 12, 1949], No. 2362/50. Class 38 (i). [Also in Group XXII] An eyelet 2 comprises an annular base 7 provided with ears 4 on the outside periphery thereof and ears 8 on the inside periphery closing on a wire 6 inserted therebetween. The ears 4, 8, which are four each in number and triangular, may be either intermeshed, Figs. 1, 2, or opposite each other, Fig. 6, in which case either their tips are curled into the strands of the wire as described in Specification 650,096, or the ears 4 are crimped over the ears 8. Preferably the base 7 is concave though it may be flat and the eyelets are formed in a chain by stamping from a blank 10. In successive operations, the blank is perforated with triangular holes 14 which are enlarged to form thin edges 18 and ridges 24 are also produced adjacent thereto; the blank being weakened along the lines 22; the base of the blank is formed with a cup-shaped recess 28 and the edges 15 thereof are turned up to produce the external ears 4 which meet,the recess 28 in smooth curves 29, the internal ears 8 being forced up along the lines 22; the blank is severed finally as required from the chain at its appendage 17 which may have a cable insulation-supporting ferrule. The severing process and the securing of the eyelet on the wire may be performed simultaneously. The eyelets may be employed with wire which has not been stripped by using a die of the, construction disclosed in U.S.A. Specification 2,302,767.
Patent GB-492949-A (GB)
Title: Improvements in or relating to means for supplying paper pulp to paper-machines
IPC: D21F1/02
Filed: 1938-01-25
Abstract: 492,949. Fourdrinier paper-making machines. VOITH, W., VOITH, H., and VOITH, H., (trading as VOITH, J. M., [Firm of]). Jan 25, 1938, No. 2439. Convention date, Jan. 25, 1937. [Class 96] A Fourdrinier papermaking machine flowbox has the upper lip B parallel to the upper run of the wire-cloth D and projecting beyond an inclined lower lip C, and the upper lip B is adjusted at F in its own plane to give a smooth, highspeed jet of pulp of the desired direction and position of impact on the wire-cloth D. The lower lip C may have similar adjustment.
Patent GB-1246711-A (GB)
Title: A cassette for and endless tape having a notched edge
Inventor: CAILLIOT SERGE LEON LOUIS
IPC: H04L17/20
Filed: 1969-01-16
Abstract: 1,246,711. Tape cassettes. S. L. L. CAILLIOT. 16 Jan., 1969 [17 Jan., 1968], No. 2520/69. Heading G5R. A cassette contains an endless tape having a notched edge and wound, notched-edge innermost, on at least two spools arranged for synchronous rotation. As shown a magnetic tape is wound on spools 15, 16 and has loops 13, 14 guided over respective plates 11, 9 screwed to the casing. The spools are fitted to squared spindles 17, 18 carrying gears 19, 20 interconnected either by a toothed belt 21 or by an intermediate gear. The spindle ends extend through the casing and carry arms engageable by eccentric pegs on respective motor shafts, one driving the spools for transducing and the other being reversible and faster for back- and forward-spacing. A plate 4, ribbed to reduce static, carries a felt pad 5 to press the lowest tape convolution against a head inserted through hole 3. Rollers 25 support the tape coils and a tape position indicator may be connected to one of the spools. In a modification (Fig. 4, not shown) six spools (6a-6f) are driven by a single gear (30) and the head is movable to any of three positions to avoid excessive winding.