baber/WOPTO huggingface dataset:
Patent GB-631217-A (GB)
Title: Pelletizing ore fines
IPC: C22B1/24
Filed: 1947-07-30
Abstract: 631,217. Agglomerating ores. ERIE MINING CO. July 30, 1947, No. 20636. Convention date, June 10, 1946. [Class 82(i)] A process of pelletizing moist ore fines involves rolling a charge, consisting of such fines in the form of small masses, in an inclined rotary drum until the masses have been formed into ball-like pellets, and dusting them immediately prior to the termination of rolling of the pellets, with a small amount of dry ore fines, preferably about 5 per cent based on the dry weight of the pellets. The process may be carried out in the apparatus shown in the Figure which comprises a rotary drum divided by a screen 12 into two parts namely, a part 25 in which small masses are formed by rolling on a bed of moist fines, and part 26 in which moist masses, freed of undersized pellets by screen 12, are dusted by fines delivered from a chute 15. Undersized pellets and the required dusted pellets are collected respectively in receivers 13 and 14. The dry fines are preferably applied to the formed pellets at a position where the pellets cease being carried round by the drum and start rolling back. The fines used for dusting may consist of material finer than 6 mesh and 80 per cent of which is finer than 65 mesh and may be obtained by screening from the product produced by heat treating formed pellets at an indurating temperature.
Patent GB-826633-A (GB)
Title: A multi-station machine for making foundry cores and moulds
Inventor: UNSWORTH FRED
IPC: B22C15/24
Filed: 1955-07-16
Abstract: 826,633. Moulding-machines. BIRMIDAL DEVELOPMENTS Ltd. Oct. 16, 1956 [July 16, 1955], No. 20655/55. Class 83 (1). [Also in Group XXX] A multi-station moulding-machine comprises a rotary work-table having, corresponding to each fixed station, a mould or core-box and associated power-operated box opening and closing means, means for rotating the table to bring a box to each station in turn, a blowing head at one station, and power-operated means for raising and lowering the work-table to engage the box at the blowing station with the blowing head. The table 10 is indexed by a mechanism 16 described in Specification 826,632 and raised and lowered by a pneumatic cylinder 15. Each of the four arms 14 of the table carries a frame 22 detachably secured thereto, which carries a core box 26, 27. The movable core-box part 27 is clamped to the fixed part 26 by a piston rod 30 on which is slidably mounted a stripper plate 31. The core box may be provided with electric or gas-fired heating elements for curing or hardening or provision may be made for the supply of a hardening gas such as CO 2 . At the blowing station, moulding mix such as resincoated sand is supplied from a hopper 18 through a piston-operated valve to the blowing head 19. When a core box is clamped against the head 19, by upward movement of the table, the diametrically opposite box is clamped against a distance piece 21 to balance the table. The box at the blowing head is backed up by a ram 20.
Patent GB-718326-A (GB)
Title: Furniture
IPC: A47C3/04
Filed: 1952-08-18
Abstract: 718,326. Furniture frames. HEAD, E. L. Aug. 17, 1953 [Aug. 18, 1952], No. 20756/52. Class 52(2) Furniture comprising a top supported on legs has the legs attached to the side members of the top unit in overlapping relationship. As shown a table top 1 has side members 5 at opposite ends the middle parts of such side members being deeper as at 6. At each end a leg unit comprising a pair of legs 10 jointed at the top by a trapezoidal member 11 is bolted or otherwise secured by screws to the side members 5. The dimensions of the leg units are such that the undersurface 14 will rest on the upper surface 15 of the leg units on the table immediately below it when a series of tables are nested together. The leg units of each piece of furniture may be arranged so as to splay out relatively to one another.
Patent GB-351754-A (GB)
Title: Graduated tension regulators for sewing machines
IPC: D05B47/00
Filed: 1930-07-09
Abstract: 351,754. Sewing-machines. FAIRWEATHER, W., 65, Chancery Lane, London.-(Singer Manufacturing Co.; Elizabeth, New Jersey, U.S.A.) July 9, 1930, No. 20767. [Class 112.] Governing needlethread. - An upper thread tensioning device comprises a stem 10 with a one-piece nut 24 between wlich and the tension spring 20 is a washer 21 provided with a key and keyway to slide on the stem without rotation. The thread is held frictionally between the usual dished plates 13, 14, the degree of friction being regulated by the spring 20 which is compressed by screwing the milled nut 24 on the stem 10. The flanged part 25 of the nut may be graduated to indicate tension.
Patent GB-170097-A (GB)
Title: Improvements in and relating to the use of multiple seals with silica thermionic valves and a method of attaching the conductors from the seals to a valve electrode
IPC: H01J19/50
Filed: 1920-07-10
Abstract: 170,097. Macrorie, A. K., Airey, H. Morris-, Shearing, G., and Mullard, S. R. July 10, 1920. Vacuum tubes.-A thermionic valve electrode D, such as a filament, for use with large currents, has two or more leading-in conductors A in parallel, each sealed separately in a silica bulb. The conductors have flattened ends forming a pinched joint J with the electrodes, and crossconnections a may be arranged between the conductors to equalize the current. A third sealed-in conductor A' may be connected with one of the other conductors. Specifications 170,096 and 170,634 are referred to.
Patent GB-1362762-A (GB)
Title: Air bypass pressure sifter
IPC: B07B1/38
Filed: 1972-05-04
Abstract: 1362762 Sifting apparatus BLAW-KNOX FOOD & CHEMICAL EQUIPMENT Inc 4 May 1972 [6 May 1971] 20799/72 Heading B2H A pressure sifter for classification of particulate material comprises a chamber having an inlet in an upper portion thereof and at least two outlets 90 and 92 in a lower portion thereof, a screen 28 dividing the chamber into said portions, a conduit by-passing the screen 28 and having its inlet above the screen in said upper portion and its outlet in said lower portion, and means 96 for imparting movement to the chamber in a horizontal plane. The sifter may be provided with three screens 28, 50 and 72 and two trays 40 and 62 as shown in Fig. 2. In operation the particulate material and air are fed through an opening (16) in the top of the chamber, past a baffle 18 to reduce the speed of the air stream, and onto the screen 28. Oversize particles move across the screen 28, drop through passages 36 and 46 in the screen and tray 40 respectively onto a second screen 50, drop through passages 58 and 70 in the screen and tray 62 respectively onto the third screen 72 and pass out of the chamber via passage 78 in screen 72 and outlet 90. Undersize particles passing through the top screen 28 are collected on the tray 40 and then drop through passages 48, 56, 68 and 82 in the other two screens and tray 62. The air stream is unable to pass easily through the top screen 28 because of the layer of particles thereon. It therefore passes upwards through a screen 24 and then down through a passage 34 by-passing the screen 28. It then re-entrains the undersize particles passing through the screens and removes them from the chamber through an outlet 92. The screens and trays are sloped downwardly to assist the movement of particles across their surfaces and undergo a gyratory movement. A weir 38 may surround the opening 36 in the top screen.
Patent GB-643484-A (GB)
Title: Improvements in or relating to gas turbine power plants
Filed: 1947-07-31
Abstract: 643,484. Gas turbine plant. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 31, 1947. No. 20800. Conventon date, Aug. 27, 1946. [Class 110(iii)] [Also in Groups. XXIX and XXXV] The fuel supply system of a gas turbine plant includes a fuel control valve with a speed responsive control and a fuel pressure regulating device comprising a byepass conduit connected to the fuel line between the pump and the control valve and containing a regulating valve controlled by a differential - pressure responsive device connected across the control valve, the regulating device operating to control the pressure of the fuel upstream of the control valve so that the pressure increases with a decrease in the differential pressure and vice versa. A gas turbine power plant for a locomotive comprises a gas turbine 14 which drives an axial-flow compressor 16 supplying air to the combustion chambers 15 and a D.C. shunt-wound generator 17 supplying current to one or more series-wound propulsion motors 18. The output of the power plant is adjusted by varying the controlled speed of the turbine. The excitation of the generator is also controlled. The speed of the turbine is controlled by a hydraulic governor 30 which supplies oil to the chamber 32 in a housing 33 which encloses a pressure-responsive diaphragm 34, movement of which is opposed by a spring 35. A threaded abutment 36 allows the force of the spring 35, and thus the controlled speed of the turbine, to be adjusted. The diaphragm 34 is connected to a valve 38 which controls the pressure of air supplied to a pressure-responsive device 39 operating the fuel valve 29. To obtain satisfactory control over the whole speed range, the pressure at the upstream side of the valve 29 is adjusted by a valve 41 in a byepass 40 so as to increase this pressure when the pressure drop across the valve 29 falls and vice versa. The valve 41 is controlled by a pressure-responsive device 46 the air supply to which is regulated by a valve 45 attached to a diaphragm 48 the chambers on the opposite sides of which are connected through pipes 42, 43 to the upstream and downstream sides of the valve 29. The pressure drop across the valve 29 may be adjusted by means of a handwheel 54. An accumulator 60 eliminates the effect of pulsations on the air pressure line on the fuel valve 29. The pump 30 also supplies pressure oil to a conduit 65 connecting a trip valve 66 to a chamber 62 the pressure of which acts on a diaphragm 63 which controls a shut-off valve 61. When valve 66 is opened the pressure in conduit 65 drops and valve 61 is closed. The generator 17 is excited by an exciter 70 which is itself excited in a differential manner by a circuit 71 containing a suitable source of electromotive force and by the load current circuit 72. When the load on the locomotive increases;. the series wound motors 18 decrease in speed, the back E.M.F. decreases and the load current increases. The increase in load current causes the exciter to excite the generator so that it supplies the same power at a lower voltage.
Patent GB-499765-A (GB)
Title: Improvements in or relating to medical injections
IPC: A61K38/28
Filed: 1937-07-27
Abstract: Pectin, preferably in the proportion of 2 to 5 per cent, is added to insulin solutions for injection so as to increase the viscosity and prolong the duration of the blood-sugar-reducing action.  Preferably the solution is adjusted to a weakly acid reaction by addition of sufficient sodium carbonate to partly neutralize the acid groups in the pectin whilst leaving the insulin completely in solution. Reference is made to the known preparations of insulin with protamines prepared from salmon sperm.  The addition of gum arabic and of gelatin to insulin solutions is also referred to.  The Specification as open to inspection under Sect. 91 refers to the addition of pectin to medical injections in general and to pituitrin solution as an example.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1036069-A (GB)
Title: Friction welding
IPC: B23K20/12
Filed: 1963-05-24
Abstract: 1,036,069. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. May 24, 1963 [May 24, 1962], No. 20848/63. Heading B3R. In friction welding metal workpieces at least one workpieee is cooled to control upset. To avoid the large upset appearing on a workpiece of lower melting point conventionally friction welded to a workpiece of higher melting point an aluminium workpiece is immersed in liquid air or liquid nitrogen and then quickly placed in the stationary or rotating chuck of a friction welding machine and welded to a copper workpiece. A higher temperature coolant may be used if the cooling continues during welding. In a modification a disc 19 of plastic is placed about the lower melting point stationary metal workpiece 14 close to the weld area and during welding a nozzle 20 directs a stream of water or cold gas on to the workpiece behind the disc. If two workpieces of the same low hot strength are to be welded they are both cooled before welding.
Patent GB-785538-A (GB)
Title: Improvements in or relating to transistor circuits
IPC: H03C1/36
Filed: 1953-11-27
Abstract: 785,538. Transistor frequency-changing circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 27, 1953 [Dec. 1, 1952], Divided out of 785,537. Class 40 (6). A mixing circuit comprises a transistor having two base electrodes, at least one emitter, and at least one collector, a first source of oscillation being connected between an emitter and one or both base electrodes, and a second source of oscillations being coupled to a circuit including a base electrode, the circuit being proportioned so that one or each source is discoupled from the other. Fig. 1 shows a junction transistor in which two base electrodes b1, b2 are applied to the central zone. The first input signal V1 is applied to the emitter e, and the second signal V2 via phase splitting transformer 5, to electrodes b1 and b2. Sum or difference frequency oscillations are selected in the collector output circuit by tuned circuit 6. The circuit is balanced so that there is no interference between signal sources V1 and V2. A point contact transistor having two base electrodes may be used instead of the junction transistor. Fig. 3 shows an alternative arrangement comprising a PNPNP transistor, the first signal V1 being applied between emitter e and base electrode b1 and the second V2 between emitter e and base electrode b2. Sum or difference frequencies are selected in the collector circuit by tuned circuit 16. The V1 signal is applied via a tapping on a tuned circuit in the emitter circuit, which is adjusted so that none of the current from source V2 flows through the source VI.
Patent GB-1268703-A (GB)
Title: Roller bearing construction
IPC: F16C19/40
Filed: 1969-04-24
Abstract: 1,268,703. Roller bearings. RUSTONBUCYRUS Ltd. 24 April, 1969 [10 May, 1968], No. 20869/69. Heading F2A. A roller bearing has an annular race ring having an arcuate surface which seats adjustably in a concavity in an annular support ring. In one embodiment, a plurality of cross-rollers 42 are disposed between two pairs of races 29- 32, each race having a convex surface 33-36 which abuts a concave surface 13-16 formed in support rings 2-5. The inner and outer support rings are each formed of two rings in each of which is formed one of the concave surfaces. The chordal length of the convex surface of race is less than the length of each roller so as to allow the edges of the race to flex under load, in addition to the races twisting in their seating. In addition, the rear edges 44-51 of each of the race rings and the adjacent surfaces of the support rings are relieved. The rollers are separated from one another by a spacer which has bearing surfaces having only two lines of contact with each adjacent roller.
Patent GB-746273-A (GB)
Title: Improvements in luminescent materials
Inventor: RANBY PETER WHITTEN
IPC: C09K11/77
Filed: 1951-09-04
Abstract: 746,273. Luminescent material. THORN ELECTRICAL INDUSTRIES, Ltd. Aug. 29, 1952 [Sept. 4, 1951], No. 20891/51. Class 39 (1). A luminescent material comprises the pyrophosphate of calcium or strontium or both activated by cerium in the ceric state with manganese as an additional activator, the ratio of calcium and strontium oxide to phosphorus pentoxide being 2 to 1.4-0.9. A lithium compound (up to 10 per cent) may be added in the preparation of the matrix. Specifications 512,154, 609,711, 746,271 and 746,272 are referred to.
Patent GB-151804-A (GB)
Title: Improvements in or relating to wind screens for motor cycles
IPC: B62J17/00
Filed: 1919-08-26
Abstract: 151,804. Knowles, H. V. Aug. 26, 1919. No Patent granted (Sealing fee not paid). Weather-screens.-A wind-screen for use on motor-cycles, of the kind carried by the machine frame, is mounted on a standard 1, 2, which is telescopically adjustable in height and at its upper end carries the screen 9 which is adjustable about an horizontal pivot. The lower end of the standard is hinged to a clip 4 on a fixed part of the cycle frame such as the top bar. The glass screen 9 may be riveted directly to a grooved bracket 10, with a rubber or other vibrationabsorbing packing between the bracket and the glass; or the screen may have a wooden or other U-shaped frame 12 and be carried by the bracket 10 or by a U-shaped bracket hinged by a central lug to the forked upper end of the standard. As shown, the hinges consist of sets of disks 8 adapted to be clamped together by a wing-nut on the hinge-pin; or each part may have a single disk-shaped projection, the opposed faces of these projections being serrated. The screens may have adjustable hinged side flaps as indicated at 11. The tube 1 may be stayed to the top bar of the frame.
Patent GB-780628-A (GB)
Title: Improvements in or relating to improved water-soluble salts of carboxyalkyl cellulose ethers and method of converting into granular form
IPC: C08B11/20
Filed: 1955-07-20
Abstract: In the process of the parent Specification, fibrous water-soluble salts of carboxyalkyl cellulose ethers are converted into free-flowing substantially granular powders by agitating a loose fibrous mass comprising a water-soluble salt of a carboxy-alkyl cellulose ether, moist with a mixture of water and a water-miscible alcohol in such proportions that the mass would normally dry to a loose fibrous product at below 100 DEG  C., simultaneously introducing thereto a dispersed stream of water or an aqueous salt solution or an aqueous alcohol containing not more than 15 per cent of water-miscible alcohol, or wet or saturated steam, until the proportion of water introduced is sufficient to form with the alcohol present in the mass a powerful solvent for the ether salt, said solvent containing at least 67.5 per cent by weight of water and the total liquid content in the mass being below 4 per cent by weight based on the ether salt, and continuing agitation until the fibrous structure of the mass is substantially destroyed and the ether salt is converted into a mass of separate gel particles, which are then dried.  This process is now modified in that the gel particles are classified to obtain in dry form substantially 100 per cent through a U.S.A. Standard series sieve No. 12 with not more than 20 per cent through a No. 100 U.S.A. sieve, whereby the product so converted, dried and classified, in addition to being a free-flowing substantially granular powder, is quickly soluble in water and substantially dust-free.  The cellulose ether salt may also be classified when in the form of a granular powder, with or without preliminary grinding of the powder, or may be wet-screened while it is still in the form of wet gel particles, and before it has been dried, the wet screening being so carried out as to give a fraction which, when dried, has the specified particle size range. The cellulose ether salt may be an alkali-metal or ammonium salt of carboxy-methyl, -ethyl or -propyl cellulose and hydroxyethyl groups may also be present in the molecule.  Specification 623,276 is referred to.
Patent GB-692940-A (GB)
Title: Improvements in and relating to the manufacture of fishing and like lines
IPC: A01K91/00
Filed: 1950-08-25
Abstract: 692,940. Braid. HEDGE, M. K. Aug. 23, 1951. [Aug. 25, 1950] No. 21083/50. Class 74 (i). [Also in Group XXV] A fishing line is formed of braided silk threads interlocking a number of longitudinal nylon threads or groups of threads. The braid may embrace a core comprising a nylon thread or group of nylon threads.
Patent GB-626033-A (GB)
Title: Improvements relating to paper clips
IPC: B42F9/00
Filed: 1947-08-02
Abstract: 626,033. Clips. HARE & SON, Ltd., C. H., and MORTIMORE, C. H. Aug. 2, 1947, No. 21139. [Class 44] [Also in Group XV] A clip for papers comprises an elongated back-plate a provided with rolled formations a<SP>1</SP> at its ends pivotally supporting two resilient wire frames c, c, capable of overlapping, each of which has a U-formation c<SP>3</SP>, the plate a having a protruding rolled lip b fixed to one edge thereof and adapted to engage the uppermost overlapping frame. The plate is preferably formed with longitudinal ribs a<SP>3</SP>, and is fixed to a back-board d.
Patent GB-463602-A (GB)
Title: Process for the destructive hydrogenation of solid carbonaceous materials
IPC: C10G1/00
Filed: 1936-07-31
Abstract: Solid carbonaceous materials prior to distructive hydrogenation are pretreated by mixing and kneading them in a finely divided state in the presence of water with sludgy residues obtained in a destructive hydrogenation process, and removing the water and ash constituents, which separate out, the residual paste being then subjected to destructive hydrogenation.  The pretreatment may be carried out with the addition of acids, alkalis, and surface-tension reducing agents, e.g. tetrahydronaphthalene, benzene, aniline, alcohols, electrolytes, &c.  The coal is ground, mixed with 50--200 per cent of water and the aqueous mixture is kneaded in a mixing worm with an amount of sludgy residue equal in weight to that of the coal.  The water and ash constituents separate out and the aqueous ash suspension is removed. The residual paste is then subjected to destructive hydrogenation.