baber/WOPTO huggingface dataset:
Patent GB-1439372-A (GB)
Title: Regulating systems of rotary field electric machines
IPC: H02P21/00
Filed: 1973-07-09
Abstract: 1439372 Control of AC motors DEUTSCHE AUTOMOBIL GmbH 9 July 1973 [10 July 1972] 32547/73 Heading H2J A regulating system of a rotary field electric machine includes a function generator which designates rotor frequency as a function of stator frequency and has a characteristic such that, for each stator frequency, the designated rotor frequency will result in the calculable minimum electrical losses for the machine, and the regulating system operates to maintain the relationship between stator frequency and designated rotor frequency. Fig. 4 shows the application of the invention to an asynchronous machine 3, e.g. a motor, the function generator 7 having a characteristic W 2  (rotor frequency) equal to function W 1  (stator frequency) obtained by calculation and experiement to ensure that, at every operating point of the machine, the sum of the iron and copper losses is a minimum. An adding element 4 forms a signal W 1  indicative of desired stator frequency, from a signal n representative of the speed of the machine and the output signal W 2  of the generator 7. An inverter 2 is controlled by the signal from element 4 (which also supplies the generator 7) and by the output signal from a current regulator 6 receiving a desired current signal I 1  and a measured current signal. The inverter 2 is controlled to maintain the minimum electrical loss condition for a (shaded) operating range between the characterstics #=# max. and #=# min. shown in Fig. 3, that is as long as the relationship W 2 =f(W 1 ) does not designate a value of W 2  which falls outside the shaded area for a given current I 1 . If this condition is not met, the constant current control is modified by use of a known system, Fig. 1 (not shown), wherein the desired current signal I 1  is obtained from a function generator (5) receiving the signal W 2  from generator 7 and having a characteristic relating I 1  and W 2 , whereby the machine flux density is maintained constant at a desired value, Fig. 2 (not shown). Thus, in a practical case for a motor 3, the inverter 2 may be controlled whereby the motor operating characteristic follows the curve of minimum flux density (# min.) for small torques up to a rotor frequency W* 2  determined by theory or experiment, after which the characteristic follows the maximum flux density curve for increasing torques. This produces a higher efficiency for the low torque range compared with known regulating systems.
Patent GB-1432320-A (GB)
Title: Ships for transporting iron ore pellets
IPC: C22B1/14
Filed: 1974-07-24
Abstract: 1432320 Iron ore pellets MITSUI SHIPBUILDING & ENG CO Ltd 24 July 1974 32662/74 Heading C1A [Also in Divisions B7 and F4] A ship carries iron ore pellets bonded with e.g. cement which are dried and hardened during their voyage by injecting engine exhaust gas or boiler flue gas into the holds by way of perforated pipes 5. Additional CO 2  may be fed to the holds. The walls of the hold may be treated with anti-corrosion and heat insulation material. Air may be mixed with the gas to cool it, or stored carbon dioxide may be mixed with the gas to increase the carbon dioxide concentration. The gas may be heated after leaving the engine or boiler. Preferably the pellets are loaded by tumbling down a spiral ramp, so reducing damage to them.
Patent GB-816348-A (GB)
Title: Improvements relating to drawbenches for tubes
Inventor: STELL JOHN ERNEST
IPC: B21C1/32
Filed: 1956-10-26
Abstract: 816,348. Drawing. NORTON & CO. Ltd., Sir J. F. Jan. 1, 1958 [Oct. 26, 1956], No. 32676/56. Class 83 (4). In a drawbench for tubes, guide or carrier tubes a are carried in brackets b secured to the links of a number of chains c spaced apart one behind the other in a horizontal direction and guided in fixed frames d to move the brackets and tubes in an upper straight line track for receiving tubes o to be drawn, after which the chains move the brackets and tubes in an arcuate path to a lower straight line track at the position where the drawing dies p are situated, the tubes being two or more in number at each position and suspended from the chains when the latter are in the upper track and supported above the chains when the latter are in the lower track. In operation the chains are moved by a motor g through sprocket gearing on a shaft f. An air cylinder i mounted on a plug stand k is used to move plug rods h into the tubes o before retracting them to the carrier tubes α. The chains then move the loaded plug rods to the lower track where another air cylinder is located below the cylinder i. Both the air cylinder pistons are then actuated, the plug rods being pushed forward to reload the upper rods with tubes and engage the tubes o on the lower rods in the dies. Alternatively the tubes o to be drawn may be independently fed to the plug rods in known manner as by two endless belts.
Patent GB-807441-A (GB)
Title: Improvements in or relating to electric cigarette lighters and heating elements therefor
IPC: F23Q3/00
Filed: 1954-05-18
Abstract: 807,441. Cigarette lighters; heating resistors. FENN, L. E. April 21, 1955 [May 18, 1954], No. 32732/58. Divided out of 807,440. Addition to 772,671. Classes 39(3) and 75(3) A heating element for a low voltage cigar or cigarette lighter is made by coating a metal ribbon with aluminium or an alloy which includes aluminium in its composition, winding the ribbon on to a spiral coil and securing the ends of the coil so that its turns are in engagement with each other and heating the coated ribbon, before or after the winding step, to oxidize the surface coating of the ribbon to provide insulation between adjacent turns. The heating may be effected by passing a low voltage current through the coil and gradually increasing the voltage until the required degree of oxidation is achieved, or by high frequency heating
Patent GB-328619-A (GB)
Abstract: 328,619. Dearden & Co., Ltd., J., Higgin, A., and Schofield, T. Oct. 27, 1928. Figured fabrics are woven from coarse or artificial silk warp threads 1, 3, 4, 6, 7, 9, 10 12, controlled by two cumber boards A, B as shown in Fig. 1 and fine warp threads 2, 5, 8, 11 controlled by two other cumberboards C, D, all the warp threads being also controlled by jacquard hooks F, each of which controls either two coarse or two fine warp threads. Two piles 1t, 2t of coarse or silk figuring wefts are inserted and then two piles 3t, 4t of fine weft, the jacquard being raised for these two piles and causing floats of this weft (shown in full lines in Fig. 6) at the back of the fabric at certain parts thus forming figure, the fabric being woven figured side downwards. Each jacquard card indicates for four piles, being up for two piles and down for two. The cumberboards are operated by cams of two different types illustrated, or by the dobby, the cumberboards A, B being up two picks and down two picks whilst the cumberboards C, D, are up one pick and down three picks so as to produce a negative design on the upper surface of the fabric being woven, this forming the final back of the figured fabric. Fig. 6 shows the fabric which results when the cumberboards are operated as shown in Fig. 4. The cumberboards may be operated as shown in Fig. 5 to give a somewhat different result. The weft figures may have twill or satin binding effects running in various directions. According to the Provisional Specification, when it is desired that the twill of the ground or the twill of the binding in the figure should run in opposite directions from the centre of the fabric, one of the two fine warp threads in a central position is omitted in order that the order of connecting up the warp threads to the jacquard hooks may be changed.
Patent GB-604829-A (GB)
Title: Improvements in or relating to storage battery electrode pencil and method of makingsame
IPC: H01M4/76
Filed: 1945-12-05
Abstract: 604,829. Batteries. AMERICAN HARD RUBBER CO. Dec. 5, 1945, No. 32870. Convention date, June 5. [Class 53] A pencil - type electrode is provided with a retaining sheath consisting of a helicallywound thread of non-conducting material, the end portions of which are in contact with the outer surfaces of enlargements on the central metal rod of the pencil. Fig. 1 shows an electrode pencil comprising a lead rod 10, having enlargements 17, 18 near its ends, flanges 11 to retain the active material 14 in place, and members 12, 13 for attachment of the pencil to upper and lower connecting bars. The active material may be moulded round the rod 10 or filled in after the outer sheath 19 has been placed partly in position. The sheath 19 is a helix the turns of which are spaced apart to allow access of electrolyte to the active material, the end turns 15, 16 being either closely coiled to engage the enlargements 17, 18 on the rod 10, or wound uniformly with the rest of the helix and surrounded by bands or collars 21 as shown in Fig. 2. The helix may be made from a thermoplastic material or from a partially or completely vulcanized rubber composition and it may be wound directly on the active material when this is moulded on the rod 10 or it may be wound on a mandrel and then placed in position over the rod 10. Styrene and polyethylene may be used and also glass fibre threads. In order to maintain the spacing between the turns of the helix, ribs 20 may be attached by heat and pressure.
Patent GB-711030-A (GB)
Title: Improvements relating to thermo-couples and alloys therefor
Inventor: LAND THOMAS
IPC: C22C5/00
Filed: 1952-12-29
Abstract: In a modification of the invention claimed in the parent Specification one element of a thermo-couple combination is formed of an alloy of 10 per cent. or more of Rh and the balance Pt, the other element being formed of a different alloy of 13 per cent. or more of Rh and the balance Pt.
Patent GB-521694-A (GB)
Title: Improvements in or relating to bonded granular materials
IPC: B01J20/28
Filed: 1938-11-11
Abstract: 521,694. Filtering media. GREGER, H. H. Nov. 11, 1938, No. 32899. Convention date, May 12. [Class 46] [Also in Groups III and V] Filter blocks or granules, heat insulating bricks and wall boards are formed of .activated metallic oxides, such as those of aluminium iron 'and magnesium Which are capable of activation by heat, bonded by means of a medium containing the phosphoric acid radical. For example bauxite is mixed with phosphoric acid to form a glue-like mass which is moulded or extruded and subjected to an activating temperature, e.g. of 700‹C. Alternatively the " activation" may be effected by heating the oxide before admixture with the bonding agent. Reference has been directed by the Comptroller to Specifications 339,645, [Class 46], 368,373 437,188, [both in Group III], and U.S:A. Specification 1,920,246.
Patent GB-1106970-A (GB)
Title: Improvements in or relating to sources of vaporized material
IPC: H01J37/305
Filed: 1965-08-02
Abstract: <PICT:1106970/C6-C7/1> A source of vaporized material for use in vacuum pumps or vacuum coating apparatus comprises a rod of vaporizable material and means for heating a free end of the rod, said rod having spaced circumferential grooves for impeding flow of heat along the rod. The getter-ion pump shown comprises an anode 18, a thermionic filament 38 and a rod 25 of getter material provided with grooves 55 and supported by a member 26, shield 28 and insulating strut 27 from the bottom 30 of a bellows 31 biased by a spring 46 away from a yoke 35 engaged by an adjusting nut 36.  A separate filament may be associated with the anode 18. Alternative forms of getter rod comprise a number of cylindrical pellets (127) e.g. of titanium Fig. 2 (not shown) mounted on a pin (126) of tantalum, molybdenum or tungsten and spaced by washers (128) of titanium, tantalum, or molybdenum, a tapered assembly of spaced frusto-conical pellets (160), Figs. 3-5 (not shown), or a tapered assembly of spaced cylindrical pellets.
Patent GB-329867-A (GB)
IPC: C07C45/51
Abstract: 329,867. Johnson, J. Y., (I. G. Farbenindustrie Alct.-Ges.). June 12, 1929. Acetaldehyde is prepared by passing acetylene, or gas mixtures containing the same, and water vapour over a catalyst comprising compounds of tungsten and, if desired, activators and carriers. Suitable catalysts are tungsten oxides, tungstic acid, ammonium tungstate, tungsten sulphide or carbide, or complex tungstic acids such as silico- and phospho-tungstic acids. Activators such as one or more compounds of heavy metals for example zinc oxide, cobalt sulphide, copper oxide, zinc selenide and the like or phosphides, may be added, or mixtures of oxides of tungsten with phosphoric or boric acid may be used. Suitable carriers mentioned are pumice and clay. The temperature used is preferably between 300‹ and 400‹ C., and reduced or elevated pressure may be employed. In the examples the catalysts are: silicotungstic acid on pieces of clay, clay impregnated with ammonium tungstate and ignited to 400‹ C., zinc oxide soaked with ammonium tungstate and ignited to 400‹ C. The hot gases leaving the reaction chamber, after removing the acetaldehyde, may be used for preheating the gases entering a second reaction chamber, or for concentrating the aqueous solutions of acetaldehyde formed. Specification 332,635 is referred to.
Patent GB-993403-A (GB)
Title: Improvements in axle boxes
Inventor: BLAIR GEORGE
IPC: B61F15/06
Filed: 1960-09-26
Abstract: 993,403. Axle boxes. GEORGE BLAIR & CO. Ltd. Sept. 25, 1961 [Sept. 26, 1960], No. 32990/60. Heading F2A. An axle box constructed to facilitate heat dissipation by the passage of cooling air comprises a web 2 forming an abutment for the upper half of a journal bearing 3, an outer transverse end wall 5 and an inner end flange 6. Above the web 2 is the seating 11 for the wagon spring. A convergent-divergent passage 17, 18 is formed between the web 2 and the seating 11 by a depending partition 19 which may be of V-form or downwardly convex. The passage 17, 18 may be divided by ribs 25 into passages 21 to 24. The end walls 13, 14 may be provided with a triangular opening 26 which forms a tunnel which extends longitudinally of the axle-box. Cooling of the axle-box is achieved by the passage of air through the convergent-divergent passage and tunnel portion, produced by the motion of the railway vehicle. Means 28 and 29 are provided to minimize the entry and permit the outflow of water entering the tunnel portion.
Patent GB-958734-A (GB)
Title: Apparatus adapted to be pumped througth a pipe
Inventor: CULVER FREDERICK HOWARD
IPC: E21B23/10
Filed: 1962-08-28
Abstract: 958,734. Oil wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Aug. 28, 1962, No. 33072/62. Heading E1F. Apparatus to be pumped through a pipe 10 comprises an expansible, annular packer 12 carried coaxially on a body 11, cups 14, 15 securing opposite ends of the packer to the body, and a fluid port 24 connecting the interior of the packers to a space outside the apparatus. Packers 12, 13 are carried by the body, which has a ball-and-socket joint 21 to facilitate movement of the apparatus in curved sections of a well tubing. The body has a fishing head 22 and a latching device 27 for carrying tools. To run a tool to the bottom of a well, fluid pressure is applied above the apparatus, the fluid passing the packer 13 to enter the port 24 to expand the packer 12 against the wall of the tubing. To move the apparatus upwards, fluid pressure is applied beneath the apparatus, causing the packer 13 to expand. In a first modification (not shown), the packers are inverted so that packers 12, 13 serve as pistons on upward and downward movement respectively. In a second modification, Fig. 3, the fishing head and latching device are omitted, and the pressure fluid enters the interior of the packers 12b, 13b through ports 24b 25b. The upper half of the embodiment of Fig. 3, without the joint 21b, may be used alone as a one-way pumpable barrier. The apparatus may be used to push tools through the tubing or to remove plugs and paraffin from the tubing.
Patent GB-1468246-A (GB)
Title: Quick-curing polyester moulding or coating compositions
IPC: C08F283/01
Filed: 1974-07-26
Abstract: 1468246 Polymerizable unsaturated polyesterinitiator mixture CHEMISCHE WERKE HULS AG 26 July 1974 [28 July 1973] 33097/74 Heading C3P A quick-curing polyester moulding or coating composition comprises (1) an unsaturated polyester; (2) a vinyl monomer which is copolymerizable with (1); (3) a tertiary aromatic amine; (4) an initiator; and optionally (5) one or more auxiliaries and/or additives wherein at least 50% by wt. of the initiator consists of one or more than one organic peroxydicarbonate of the general formula in which R and R<SP>1</SP> may be identical or different and each in a linear or branched chain aliphatic or cycloaliphatic radical of three to sixteen carbon atoms, the initiator being based on the sum of components (1) to (5). The initiator is preferably isopropyl peroxydicarbonate, diacetylperoxydicarbonate, tert.butylcyclohexyl peroxydicarbonate, α-ethylhexylperoxydicarbonate or a mixture thereof. Up to 50% of the peroxydicarbonate may be replaced by a peroxide, e.g. benzoyl peroxide.
Patent GB-1121647-A (GB)
Title: Safety device for an agricultural implement
IPC: A01B61/04
Filed: 1965-08-03
Abstract: 1,121,647. Agricultural implements. HUARD-U.C.F. SOC. ANON. DES ANCIENS ETS HUARD CARRIEREGUYOT FONDEUR ET UNION CHARREUS-FRANCE. 3 Aug., 1965 [17 Dec., 1964], No. 33260/65. Heading A1B. A plough 6 is arranged to pivot rearwardly on meeting an obstruction and is provided with a stem 5 on which is rotatably mounted a roller 8 which engages a spring blade 9 which straightens under load to disengage the roller 8.
Patent GB-1085854-A (GB)
Title: A process for the production of titanium, zirconium or thorium hydride
IPC: C01B6/02
Filed: 1965-08-05
Abstract: Titanium, zirconium and thorium hydrides are prepared by reacting an oxide of titanium, zirconium or thorium with a mixture of an alkaline earth metal hydride, an alkali metal halide and optionally an alkaline earth metal halide at a temperature of 350-750 DEG  C. and normal or slightly elevated pressure, under exclusion of air and subsequently reheating the reaction product to a temperature of from 800-900 DEG  C. and then working up the reaction mixture, the mixture of alkaline earth metal hydride and alkali metal halide having been prepared in accordance with Specification 949,490 by reacting an anhydrous halide of an alkaline earth metal with sodium or potassium or an alloy thereof in a melt in the presence of hydrogen whilst avoiding layer formation in the melt. The starting material is in the form of a mixture in which the hydride is present in at least stoichiometric quantities relative to the oxide and preferably not more than 10% in excess. The alkaline earth metal hydride may be calcium hydride.
Patent GB-191930-A (GB)
Title: Improvements in or relating to portfolios
IPC: B42F7/02
Filed: 1921-12-14
Abstract: 191,930. Tuck, G. Dec. 14, 1921. Portfolios.-In a portfolio of the kind described in Specification 10261/01, an additional fastening-flap 13 is secured to the bottom flap 3 and is gummed on its underside for attachment to the top flap 2. The fastening-flap may be provided with an extension 14 adapted to be passed through a slot 10 in the upper flap 2 and to be secured by gumming to the lower flap 3 which is made wide enough for this purpose. The device also is provided, as in the Specification referred to above,'with tongues 7 entering slots 8, 9 and with a curved slot 11 into which the edge of the top flap 2 is slipped.
Patent GB-173747-A (GB)
Title: Improvements in or relating to striker cylinders for stenographic and like machines
IPC: B41J11/02
Filed: 1921-12-14
Abstract: 173,747. Grandjean, M. Jan. 7, 1921. Paper-supports.-In a stenographic or like machine, employing a platen roller which is rotated automatically at each operation of the keys, the platen roller can be turned upwards about a transverse axis at one end, to facilitate introduction of the paper, and is provided with a driving-member. Preferably, the shaft 1 of the platen roller 8 is provided at one end with a transverse pivot 2 mounted in bearings 3, and is retained at the other end by a catch 5. Upon release of the catch, the platen roller is turned upwards by a spring 7, and the paper can be readily placed on the feed-rollers 12. The platen roller is loose on the shaft and is provided with a ratchet-wheel 10 co-operating with driving- mechanism.
Patent GB-331171-A (GB)
Title: Improvements in or relating to devices for separating a single wire from a bundle of wires
IPC: B65G47/14
Filed: 1929-11-05
Abstract: 331,171. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Nov. 7, 1928, [Convention date]. Feeding wires singly from bundles to machines. -A holder 10 for a bundle of wires, for example leading-in wires for electric lamps, has a lower angularly-tapered gutter part, is oscillated about a shaft 11, and co-operates with a receiver 12 oscillatable about a shaft 16. When the receiver moves into the position shown in full lines, connection is established between a slot 13 adapted to receive a single wire and a, vacuum through a hole 15, a valve 20, and a pipe 17. After the receiver has passed the position B the valve is closed, but the receiver continues to hold the wire until it reaches a lug 22 by which it is detached. The receiver is oscillated by a rack and pinion 19, 18. The wire may be held temporarily by the receiver by magnetic means instead of by a vacuum.
Patent GB-1512794-A (GB)
Title: Apparatus for treating a photosensitive varnish layer on a strip
IPC: G03F7/30
Filed: 1975-09-05
Abstract: 1512794 Processing photo-sensitive materials SIEMENS AG 5 Sept 1975 [27 Sept 1974 2 July 1975] 33677/77 Divided out of 1512793 Heading G2X [Also in Division B2] Apparatus for developing or removing a photosensitive varnish layer from one side only of a strip 10 coated on both sides with the photo-sensitive material has a vessel 8 for the developer or varnishremoving liquid 7, an overflow channel 9, a circulating pump 13 having a suction line 14 connected to the overflow channel and a delivery line 15 connected to the bottom of the bath and guide arrangements e.g. rollers 11, 12 for guiding the strip 10 over the surface of the liquid. In an alternative embodiment a perforated plate is positioned below the bath surface to improve the flow of liquid over the strip surface, and a reservoir, filter, and regulating valve are provided in the circulating pump line to replenish the developer or varnish remover.
Patent GB-393601-A (GB)
Title: Improvements in or relating to retorts for distillation treatment of materials containing hydrocarbons
IPC: C10B55/02
Filed: 1931-12-05
Abstract: <PICT:0393601/III/1> Coal-oil mixtures are distilled in a slightly inclined cylindrical retort 1 rotatable within a housing 2 and heated externally, e.g. by gas burners 7 so that the lower end is maintained below red heat and at a higher temperature than the upper end, the carbonaceous mixture being introduced through a pipe 23 at the upper end and the residues withdrawn through a pipe 27 and discharge column 29 at the lower end while precluding admission of air, and the vapour produced being withdrawn through a pipe 22 at the upper end.  The coal-oil mixture is prepared by carrying the solid carbonaceous material supplied from a pulverizer 9 by means of the stream of waste gases leaving the retort through a pipe 11 into intimate contact with oil in a mixer 14 provided with a stirrer 18 and heater 19, the mixture then being forced by a pump 20 to the retort.  The interior of the retort is provided with honeycomb baffles 24 which cause the oil to flow in cascades followed by projecting baffles 25.  The vapours are withdrawn by an exhauster 33 through condensers 34, 35, 36, the condensate being collected in a receiver 40.  Part of the condensate may be returned to the oil storage tank 13.  The gases formed in the distillation are collected in a holder 41 and burnt in the burner 7.