baber/WOPTO huggingface dataset:
Patent GB-416508-A (GB)
Title: Improvements in or relating to rotary pumps for liquids
IPC: F04C2/44
Filed: 1933-03-17
Abstract: 416,508. Rotary pumps. BEDELL, B. H., Greenaway Cottage, Limpsfield, Surrey. March 17, 1933, No. 8146. [Class 110 (ii).] A rotary pump or compressor of the hinged vane type is provided with guide rings 13 in annular recesses in the casing wall, which prevent contact of the vane tips with the bore of the working chamber 6. The rings 13 have notches or teeth 14 on their inner surfaces which are engaged by the vane tips to drive the rings. Bearing bushes 15 for the rings are made of lignum-vitae, rubber, or synthetic resin compound and are water lubricated. Axial grooves 17 are provided in the bushes for lubrication purposes, those on the suction side being blocked or shortened. One edge of each bush is bevelled 16. The bulbous ends 4 of the vanes 5 are a sliding fit in their sockets. Pockets 19 are provided in the rotor 2 to accommodate solids in the fluid being pumped. Inlet and outlet ports 7, 8, respectively are arranged as shown. Saw-cuts are made in the abutment arch 18 so that eddies are formed in any fluid leaking across. The Provisional Specification states that the notches 14 may be dispensed with in some cases, the rings 13 being driven frictionally. Specification 218,871, [Class 110 (ii)], is referred to.
Patent GB-1055673-A (GB)
Title: Improved electrode connections in a semi-conductor housing
IPC: H01L23/488
Filed: 1965-02-25
Abstract: 1,055,673. Sleeve couplings. CKD PRAHA, NARODNI PODNIK. Feb. 25, 1965 [March 31, 1964; Sept. 25, 1964], No. 8151/65. Heading H2E. [Also in Division H1] Two conductors are joined together using a recessed pin, one conductor lying within the recess while the other abuts or lies over the pin, a sleeve being placed around the conductors and pin and crimped in such a manner as to hold the assembly together. In an embodiment a vacuum tight housing containing a semi-conductor system 2 soldered to a base 1 is formed by a bushing 3 and insulator 4. A stranded conductor 6 lies within the recessed pin 5 which has a further stranded conductor 8 lying over it and a sleeve 9 crimped thereto. In an alternative embodiment (Fig. 2, not shown) the pin 5 is not pointed but flat at its upper end and this end abuts the conductor 8.
Patent GB-253057-A (GB)
Title: Improvements in or relating to absorption towers
IPC: B01D53/18
Filed: 1925-03-25
Abstract: 253,057. Wade, H., (Koppers Co.). March 25, 1925. Scrubbers.-A cylindrical absorption tower 8 is provided with a series of stepped blocks 29 supporting vertical sided rings 28 with interstices between them and so arranged that the liquid sprayed from the top of the tower is intercepted before it reaches and runs down the side of the tower. Sprayers as described in Specification 250,385, [Class 69 (iii), Spray-producers &c.], are suitable for use in the apparatus.
Patent GB-1189565-A (GB)
Title: Improved Captive Screw Device and a Method for Securing Together the Parts Thereof.
IPC: F16B41/00
Filed: 1968-02-20
Abstract: 1,189,565. Jointing by forging; jointing. PENN ENG. & MFG. CORP. 20 Feb., 1968 [26 July, 1967], No. 8208/68. Headings B3H and B3U. [Also in Division F2] A captive screw fastener comprises a retainer 18 having a linch formation 42 at one end, a bore 16 and a radially inwardly projecting flange 20; a screw 14 extending into the bore 16 and having a threaded part 36, a neck portion 44 and a head 38; and a locking element 56 which may be integral with the flange 20 and which prevents or restrains removal of the screw 14 from the retainer 18. As shown, the locking element 56 comprises a plastics ring which frictionally engages the wall of the bore 16 and which fits loosely around the neck portion 22 of the screw 14. Alternatively, the retainer bore may be so narrowed that the threaded portion 36 has a greater diameter than the narrowed portion or the narrowed portion may be threaded. A spring 50 may be provided to bias the screw head 38 away from the retainer 18. The fastener is anchored to a plate 12 by means of a punch 68 and co-operating anvil 64 which are so arranged on opposite sides of the plate and fastener and moved relative to each other that the screw head 38 is forced into engagement with the end face 40 of the retainer 18 which itself is then forced into the material about an aperture 60 of the plate 12.
Patent GB-425395-A (GB)
Title: Method of preparing copper compounds and fungicide mixtures obtained with such compounds
IPC: C01G3/06
Filed: 1934-03-15
Abstract: A copper compound is precipitated by reacting metallic copper with a solution of ammonium and alkaline-earth or magnesium chlorides while aerating.  Using calcium chloride, the product corresponds to a formula 4 CuO.CaCl2.6-9 H2O.  A solution containing 150g CaCl2 and 15-20g. NH4Cl per litre is suitable.  Larger amounts of ammonium chloride result in a product containing oxychloride.  The copper may be present as an alloy, waste, <PICT:0425395/III/1> or native or oxidized ore.  Any ammonium compound giving the chloride in the presence of calcium chloride can be used in place of ammonium chloride itself.  Waste copper may be placed on a perforated bottom in a vat containing the reacting solution and air forced in beneath it by lead pipes.  Precipitation is continued for several days, the solution decanted, and the precipitate washed, and dried say at 100 DEG  C.  Washing may be dispensed with, a little sodium sulphate being added to decompose the calcium chloride present.  The solution is enriched with calcium chloride and re-used.  In a modification, a series of three basins 11, 12, 13 is filled with the reacting solution, metallic copper being placed in basin 11.  The solution becomes saturated with cuprous copper, deposits impurities in basin 12 and enters basin 13 supplied with air by pipes 15.  The precipitate collects here, the solution being returned by a pump 17. The product is employed as a fungicide, either dry or in solution, or as a pigment for paints.
Patent GB-1275397-A (GB)
Title: Methods of manufacturing semiconductor devices and devices manufactured thereby
Inventor: PURDOM NEIL STUART
IPC: H01L21/288
Filed: 1970-02-20
Abstract: 1275397 Semi-conductor mountings WESTINGHOUSE BRAKE & SIGNAL CO Ltd 2 Dec 1970 [20 Feb 1970] 8247/70 Heading H1K [Also in Division B6] A Si semi-conductor element is soft soldered to a header 2 carrying a first terminal post 4, and further terminal posts 7 interposed through apertures 8 are secured by moulding material 5 and connected by wires 9 soft soldered to appropriate regions of the semi-conductor. After formation of the assembly it is gold plated, by immersion in electroless cyanide based plating solution, on the exposed surfaces of header 2, solder 3, terminals 4, wire 9 and solder 10 (Fig. 2, not shown). Thereafter the assembly is etched in HNO 3 +HF to remove impurities from the semi-conductor while leaving the gold plating unaffected. A flanged cap enclosing the semi-conductor is welded to flange 11 of the header.
Patent GB-1427866-A (GB)
Title: Check valve
IPC: F16K/
Filed: 1974-02-22
Abstract: 1427866 Valves NUOVO PIGNONE SpA 22 Feb 1974 [23 Feb 1973] 8247/74 Heading F2V In a checkvalve having a pivoted closure member, shock absorbing means are provided for the opening movement of the closure member. The means comprise an elongate member 33 having a head 34 which engages the back of an arm 28 on which disc-like closure member 30 is pivoted, reciprocating in an aperture 32 in the valve housing and loaded by a spring 40 which absorbs the energy of impact of the arm on the head 34. The elongate member acts through the centre of percussion or the centre of gravity of the closure member. A nut 36 carried on the elongate member engages the spring and is adjustable to vary the shock absorbing effect. The outer end of the elongate member slides in a sleeve 38 mounted in a cap 37 bolted to the outside of the valve housing. The closure member comprises a right cylindrical disc portion backed by a truncated conical portion carrying a boss (29), Fig. 3 (not shown), located within an annular projection (47) on the pivot arm. The boss and the annular projection each have grooves in which a ring of ball bearings are placed and a single ball bearing is located between the end of the boss and the inner end of the annular projection on the arm, each member having a conical depression. The closure member is prevented from rotating about the arm by a pin (43) carried by the closure member which enters an aperture (49) in the arm. Servomotors 50 may be mounted on the outside of the valve housing, Figs. 4, 5 and 6 (not shown), on top of or/and on the side of the housing to effect closing of the valve. When mounted on the side a ram (51) engages a lever (52) attached to the pivot of the closure member and a lever-mounted counterweight (53) is attached to the arm. When mounted on top of the housing the ram enters the valve housing and contacts the valve pivot arm directly.
Patent GB-978277-A (GB)
Title: Electric circuit arrangement for controlling the current supplied to electrical apparatus
IPC: C10G19/08
Filed: 1963-03-01
Abstract: 978,277. Rectifying. ELDIMA A.G. March 1,1963 [March 22, 1962], No. 8261/63. Heading H2F. In a rectifier circuit supplying unsmoothed D.C. to a load 11, the output voltage is varied by the control of a power transistor T1 in the D.C. line, this transistor being controlled by a cascade circuit of transistors T2, T3. In operation the base of transistor T1 is held at a potential determined by a potential divider (transistor T2 and resistor 18) across a battery B, and T1 switches off when T2 switches on. The base of T2 is held at a potential determined by the potential divider (T3 and resistor R22) which potential divider is supplied with the halfwave rectified voltage across points 6 and 13. The potential of the base of T2 is therefore dependent on the instantaneous value of this voltage in conjunction with a variable voltage derived from a potentiometer 24 and applied to the base of transistor T3. The middle portion of each rectifier pulse is therefore cut out, giving a variation in the output voltage, and the width of the cutout portion is dependent on the setting of the tapping 29 of the potentiometer. Other embodiments envisaged are (a) half-wave rectification, (b) a cascade circuit including two further transistors, (e) further power transistors in parallel with T1.
Patent GB-388583-A (GB)
Title: Improvements in methods of controlling low-pressure gaseous discharge rectifiers
IPC: H02M7/06
Filed: 1932-03-19
Abstract: 388,583. Rectifying alternating current. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. March 1.9, 1932, No. 8267. Convention date, March 26, 1931. [Class 38 (ii).] Relates to mercury - vapour rectifiers in which regulation of the output is effected by varying the instant at which the anodes begin to conduct, and consists in applying the starting voltage direct to the anodes instead of to grids usually provided for controlling starting. Fig. 2 shows the arrangements associated with one anode 2 of a rectifier supplying a load 10 from one secondary phase 8 of a supply transformer. The anode is encased in a shield 3 closed by a grid 4 such that current would not normally commence under the anode voltage applied by the winding R. Starting is effected however by application to the anode of a high frequency impulse of high voltage produced in an oscillation circuit comprising auxiliary source of voltage 7, spark-gap 13, condenser 12 and inductance 11. Dissipation of this impulse through the load circuit is prevented by the inductance of the winding 8. Reference has been directed by the Comptroller to Specification 254,746, [Class 38 (ii), Electric currents, Converting &c.].
Patent GB-494665-A (GB)
Title: Improvements relating to the regulation of fuel injection pumps for internal combustion engines
IPC: F02D1/00
Filed: 1937-04-28
Abstract: 494,665. Fuel - - injection pumps. BELLISS & MORCOM, Ltd., HOLLIDAY, P.,A., and MUCKLEY, H. E. April 28, 1937, No. 8280. [Class 102 (i)] In a multi-cylinder fuel-injec tion pump, the regulating member b of each pump cylinder a is con nected to a lever e pivoted at f. A rod c connected to a governor is connected to a lever d pivoted at f and an adjustable abutment n is held in engagement with the lever e by a coiled spring mounted coaxially with the pivot f and the arms of which engage the levers d, e. Should the regu lating mechanism of a pump cylinder seize, then compression of the spring i will permit the movement of the rod c to reduce the fuel output. Specification 316,301, [Class 102 (i)], is referred to.
Patent GB-589779-A (GB)
Title: Improvements in or relating to processes employing fluidised solids, and apparatus therefor
IPC: B01J8/26
Filed: 1945-04-04
Abstract: <PICT:0589779/III/1> In catalytic and other processes in which a vapour is treated with fluidized solid, the latter is in the form of spherical particles of a substantially uniform size, which may be between 40 and 1000 microns, and is separated from the vapour by filtration through a porous medium.  The Figure shows a cracking apparatus in which the catalyst circulates in known manner through a reaction chamber 4 and regeneration chamber 16.  Filter bags 6 attached to the plate 7 around holes 7a extend into the fluidized catalyst and constitute the exit for the gaseous products.  They are periodically cleared by blowing inert gas backwardly through them from pipes 11.  The filter material may be woven from glass or metallic wires, but porous solids made, e.g., of alundum or carbon particles may also be used.
Patent GB-308351-A (GB)
Title: Process of making a material applicable as an adsorbent, comprising carbon, iron andiron oxide
IPC: C01B31/00
Filed: 1929-03-14
Abstract: 308,351. Aarts, C. J. G. March 22, 1928, [Convention date]. Carbon.-A product consisting chiefly of carbon and containing also iron and iron oxide is obtained by passing carbon monoxide over heated iron oxide which is finely distributed on a voluminous carbon carrier, under such conditions that the reaction 2CO = C + CO2 takes place and the iron is alternately oxidized ,and reduced and serves as an oxygen carrier in the reaction. The product is valuable as an adsorbent, for decolorizing liquids, as a pigment, and for making electric furnace electrodes.
Patent GB-472239-A (GB)
Title: Improvements in devices for dispensing aerated liquids
IPC: B67D1/14
Filed: 1936-03-20
Abstract: .472,239. Dispensing beer &c. JOFEH, E. J., TRILLING, J. G., and WALSH, S. J. March 20, 1936, No. 8360. [Class 116] Apparatus for dispensing ing beer and other aerated liquids, having an intermediate pressure-relieving vessel through which the liquid passes prior to dispensing, has the intermediate vessel mounted directly upon the rotary member of a multi-position valve controlling the dispensing operation. The apparatus is stated to be particularly applicable to the apparatus described in Specification 443,605. The valve may comprise a plug 3 with handle 4, and seating in a casing 5, a spring ring 6 being fitted to prevent removal of the plug. A glass cylinder 1, constituting the intermediate vessel is secured to the plug by a cap 2 held by a central tube 7 which is mounted in the plug and has a port near its upper end opening into the interior of the cylinder 1. The valve seat has a port 14 communicating with the liquid supply source, a delivery spout 15, a port 16 connected to a source of gas under pressure and a recess 17. The plug has ports 12, 10, 11 opening into the interior of the cylinder 1, a port 8 communicating with the interior of the tube 7 and a port 9 closed by a pressure-relief valve 13. For dispensing, the handle 4 is operated to align the ports 10, 14 whereupon beer flows from supply through the port 10 into the vessel and away through the delivery spout 15 on further movement of the handle, pressure being relieved past the relief valve 13 by the ports 8, 9 placed intocommunication with each other by means of the recess 17. For emptying the intermediate vessel for cleaning purposes or to return the beer therein to a cold region, the handle 4 is operated to place the port 8 in communication with the port 16, in which position the ports 14, 11 align but no communication exists between the ports 8, 9. Gas is then able to enter the vessel above the liquid therein, and return the liquid through the port 14 to storage. The valve casing may have two or more inlet pipes connected to different sources of supply so that a variety of liquids may be dispensed.
Patent GB-801973-A (GB)
Title: Arrangement for rapid voltage regulation in contact converters with switching coils
IPC: H02M1/26
Filed: 1956-03-19
Abstract: 801,973. Rectifying. BROWN, BOVERI & CIE. A.G. March 19, 1956 [March 18, 1955], No. 8509/56. Class 38 (2). The output voltage or current of a polyphase bridge-connected contact converter comprising contacts 4, 5 having in series switching chokes 2, 3 is kept constant by varying the length of the circuit closing step by controlling the passage through premagnetizing windings 21, 31 of currents of rectangular wave-shape. Each of these currents comprises alternate halfwaves which vary with the controlled output quantity and remagnetize the switch choke before contact closure to an appropriate amount, the other half-waves being of constant magnitude resulting in a constant value of circuit opening step current. The premagnetizing current for each pair of chokes connected to the same phase, e.g. R is derived from two inductive devices 8, 9 through rectifiers 10 so poled that windings 21, 31 each receive their variable half-waves from device 9 and their fixed half-waves from device 8. To provide the necessary variation, device 9 carries a winding c through which passes a direct current proportional to the difference between a voltage developed in resistor 12 proportional to the load current, and a reference voltage in resistor 14. The current in resistor 12 is derived through rectifier 7 from the A.C. windings, fed from transformer 16 of a saturable device 6 controlled by the D.C. load. To produce the rectangular wave shape of the premagnetizing current, devices 8, 9 each have a pair of cores of magnetic material having a characteristic with a sharp knee, carrying common D.C. biasing windings b and separate premagnetization current windings a, a connected in series opposition relative to the D.C. flux. The flux component of double frequency produced in the cores is cancelled by current in winding d derived through rectifiers 11 from the premagnetization current in resistor 15.
Patent GB-903269-A (GB)
Title: Improved delivery device for bagged or piece articles
IPC: B65G47/29
Filed: 1960-03-10
Abstract: 903,269. Delivering bags. AUER MUHLENWERKE KOMM.-GES. A. A., HEINR. March 10, 1960 [March 10, 1959], No. 8511/60. Class 78 (1).  A slideway 1 is provided with a base portion 4 pivoted at 5, a platform 2 pivoted at 3 and a closure flap 6 pivoted at 50 so that a bag 15 slides down the slideway on to platform 2 and tips it downwards till it rests on stop 12, the bag being checked by flap 6 held in position by rod 7. Platform 2 and base portion 4 overlap so that the base portion is tipped upwards by the rear end of the platform (as shown) and serves to hold up the next bag 16 when it arrives. To discharge a bag, the rod 7 is dislodged from recess 13 either mechanically by a pull-rope or electrically by a magnet so that flap 6 swings leftwards to allow the bag 15 to fall out of the slideway. Several slideways may be employed, each having a spring device to retard the downward flow of the bags.
Patent GB-526485-A (GB)
Title: Improvement in colour prints and methods of manufacture therefor
IPC: G03F7/14
Filed: 1939-03-17
Abstract: 526,485. Producing photo-mechanical printing surfaces. TASKER, S. March 17, 1939, No. 8572. [Class 98 (ii)] A method of making colour prints, either for proofs or any desired number of copies, consists in forming from the original colour picture or transparency a number of half-tone colour separation photographs on a sensitized colloid surface, such as bichromated gelatine, and using these for lithographic printing by wetting them, inking with grease inks, and printing from them in sequence.
Patent GB-609757-A (GB)
Title: A vegetable masher
IPC: A47J19/00
Filed: 1946-03-20
Abstract: 609,757. Vegetable mashers and graters. ROZENTRAUB, D. March 20, 1946, No. 8603. [Class 28(ii)] In a vegetable masher comprising a conical sieve and a rotary squeezer 13, the squeezer 13 merges into a resilient spiral cornet 12, the wound up centre of which is carried by an upright spindle 3. Material not forced through the sieve escapes over the edge 20 of the squeezer and is then directed back by a flexible scoop 19 mounted on the squeezer 13. The cornet 12 is reduced in height at 17 to improve flexibility. The edge 17 is sharp to co-operate with the top edges of fixed fins 5 to shear the material. The fins 5 are mounted on a fixed cone 4. The lower zone 6 of the sieve has inwardly projecting sharp edges round the holes, to act as a grater, while the middle zone 7 has smooth edged perforations, the top zone being plain. The handle 16 is mounted on a resilient spring strip 15. Short ribs 8 are secured on the upper perforated surface 7 to partially dam up the material to stiffen the surface 7. The device may have lugs 11 to fit into L-shaped slots 23-25 in a vessel, Fig. 5, and secured by a disengageable spring catch 24.
Patent GB-1467486-A (GB)
Title: Pallets
IPC: B65D19/00
Filed: 1974-02-26
Abstract: 1467486 Bearers for pallets M L H BERGHGRACHT 26 Feb 1974 [27 Feb 1973 12 Feb 1974] 8638/74 Heading B8H A load handling pallet comprises a load support sheet 2 and a number of bearer elements 1 connected thereto, each bearer element comprising a sheath 11 filled with a filling material 12 and then heat shrunk to make the element rigid. The elements may be attached to the sheet by adhesive or heat-welding and the fitting material may be sand, gravel, expanded clay granules, gypsum, plaster which may be complementary or the same as that which forms the load of the pallet. A system of conveyers, handling apparatus and heaters for manufacturing the pallet is also disclosed.
Patent GB-1158391-A (GB)
Title: Improvements in the production of Superconducting Materials
Inventor: KNAPTON ARTHUR GEORGE
IPC: C22C27/02
Filed: 1966-03-03
Abstract: 1,158,391. Nb-Ti super-conducting alloys. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 24, 1967 [March 3, 1966; March 29, 1966], Nos. 9408/66 and 8640/67. Heading C7A. A super-conducting alloy comprising: Ti 30 - 80 atom % O 0 - 4, 000 ppm by weight N 0 - 2, 000 ppm by weight C 0 - 1, 500 ppm by weight the balance, apart from impurities, being niobium is reduced in size by working in several stages and is heated to 300 -550 C. during or after each of two or more of the working stages. The alloy may be quenched after the heating step. The interstitials O, N and C may be added as the compound thereof with Nb or Ti to the electrode which is then arc melted in a vacuum or an inert atmosphere or impure starting materials may be used.