baber/WOPTO huggingface dataset:
Patent GB-597430-A (GB)
Title: Improvements in two-terminal electric oscillatory circuits having adjustable dynamicresistance
IPC: G01R27/02
Filed: 1945-08-13
Abstract: 597,430. Impedance networks. GENERAL ELECTRIC CO., Ltd., and BIGGS, A. J. Aug. 13, 1945, No. 20752. [Class 40 (iii)] [Also in Group XXXVI] A two-terminal antiresonant circuit presents an effective resistance at resonance ("dynamic resistance") which can be varied over a wide range and is approximately independent of frequency. The inductive element L, Fig. 2, and capacitive elements C1, C2 are bridged by a resistance R, which may have an inductance S in series with it to reduce the effect of changes of frequency. The condenser C2 is varied to vary the dynamic resistance across the terminals 1, 2, which is a maximum when the arms of the bridge are conjugate. Preferably, however, the tapping on the inductance L is replaced by an equivalent mutual inductance M, Fig. 8. A trimming condenser T is added to adjust the calibration, and stray capacity across the terminals 1, 2 may be taken into account. For measuring the dynamic resistance of quartz crystals and the like by the substitution method, the circuit may be used in combination with an oscillator, such as that described in Specification 597,439 whose output does not vary substantially with changes of frequency.
Patent GB-614290-A (GB)
Title: Improvements in or relating to method and apparatus for expanding tubing and resulting products
IPC: F28F1/30
Filed: 1946-07-11
Abstract: 614,290. Making finned and compound tubing, steam generators, and bellows. WARREN WEBSTER & CO. July 11, 1946, No. 20755. Convention date, July 18, 1945. [Classes 83 (ii) and 83 (iv)] Corrugating ; altering physical &c. structure.- Tubes are expanded by the solidification of a filling liquid which expands on freezing. Fins 12 are secured to a tube 11 by filling the tube with water &c., plugging the ends by plug clamps 15, 16 of non- metal construction and freezing the liquid. To regulate the amount of expansion the liquid space in the interior of the tube may be reduced by a cylindrical or tapered rod 25 positioned by spacers 26. The tube may be annealed before freezing and hardened by the expansion. A tube may be encased within another tube or tubes may be expanded into headers of boilers &c., Fig. 9 (not shown), or a tube may be corrugated in dies of increasing depth by the expansion for the manufacture of bellows, Fig. 8, (not shown). Tubes may be passed through a refrigerating bath and a thawing and cleansing bath or the refrigerant may be circulated through a member placed within the tube, Fig. 10 (not shown). The fins 12 may carry flanges 13 which become bowed, Fig. 5, during the expansion. Metal alloys such as antimony alloys and chemicals which expand on solidification may be used.
Patent GB-1422249-A (GB)
Title: Tape transport system
IPC: G11B15/54
Filed: 1973-05-02
Abstract: 1422249 Automatic control of speed BURROUGHS CORP 2 May 1973 20838/73 Heading G3R A reel to reel tape transport system has the speed of the drive reel controlled to keep the linear speed of the tape at a constant commanded level by deriving the linear speed from the product of signals representing the instantaneous angular velocity and effective radius of one of the reels and comparing the signal so derived with a reference signal to produce an error signal which is applied to the drive reel motor controller. In the system shown, a photo-electric pulse generator 34 followed by a pulse shaping network 40 and monostable circuit 42 is used to provide a train of standard pulses Vm whose repetition rate corresponds to the angular velocity of the supply reel Rs. This pulse train is integrated at 46 to produce a voltage proportional to the speed of the supply reel Ws. Additionally the pulses Vm pass to a counter 52 which is pre-set with a value corresponding to the largest effective radius of the supply reel and counts down on receipt of each pulse so that at every instant the value in the counter represents the effective radius is of the reel. After conversion at 54 the signal rs and ws are multiplied in a four quadrant multiplier 58 to produce a linear speed signal Vo which is compared at 20 with a desired speed signal Vc from generator 2. The error signal VER is used to control the conduction of a transistor in the circuit of drive motor Md, Fig. 3 (not shown). An analogue system for controlling the linear speed of a tape is disclosed in Specification 1422250.
Patent GB-445842-A (GB)
Title: Improvements relating to the manufacture of aircraft or vehicles
IPC: C22C38/46
Filed: 1934-07-16
Abstract: Fusion-welded constructional parts of aircraft and vehicles are made from steels containing not more than 0,25 per cent of carbon together with specified ranges of one or more of the elements manganese, nickel, chromium, tungsten, molybdenum, vanadium, silicon, and copper.
Patent GB-299920-A (GB)
Title: Apparatus for delivering measured quantities of liquid
IPC: G01F3/18
Filed: 1927-08-08
Abstract: 299,920. Muller, J. Aug. 8, 1927. Addition to 274,806. Measuring-devices; suction and delivery reservoirs; valves and valve tests, arrangement of; valve gear.-In a measuring-device of the kind described in the parent Specification, the rotatable, cylindrical member controlling the conduits 24', 26<1>, and 40 is replaced by an arrangement of suction and delivery, clack valves for each circuit radially arranged and controlled by a central cam shaft. In the construction shown the conduits 24<1>, 26<1>, 40 have suction and delivery valves 65, 66 respectively. A central, coaxial member 74 carries pairs of valves 82, 83, 84 which control the valve passages of the conduits under the action of cams 94, 95 to effect the desired connections. In a modification three parallel chambers are used. The centre chamber is connected to the. pump and communicates with the other two chambers through suction and discharge valves. The end chambers have cam-operated, spring-pressed, radiallydisposed valves connected to various sources for measuring, suction, or delivery.
Patent GB-1527345-A (GB)
Title: Calcination of pulverised materials
IPC: B01J6/00
Filed: 1977-05-18
Abstract: 1527345 Calcining pulverized raw materials ISHIKAWAJIMA HARIMA-JUKOGYO KK 18 May 1977 [25 May 1976] 20926/77 Heading C1H A method for simultaneously calcining a first kind of pulverized materials containing combustible compounds (e.g. oil shale) and a second kind of pulverized materials (e.g. raw materials for cement manufacture) involves introducing the "first" materials entrained in a gas stream into a chamber, introducing combustion air into the chamber and burning in the combustion air in the chamber the combustible compounds in the "first" materials, and introducing the "second" materials through an independent inlet into the chamber, whereby the "first" and "second" materials are mixed and calcined. Referring to Figs. 1 to 3, the "first" materials are fed through a weigh feeder 2 into flowing air 10 in a weight ratio of between 8 and 10:1, and the air with entrained solids passes through one or more nozzles 3 provided with deflectors 9 into a calciner 4 wherein the combustible compounds are burnt in pre-heated air admitted through a tangential inlet 7. The pre-heated air may come from a clinker cooler or kiln and have an oxygen content of 12-15% by volume. The "second" materials enter the calciner 4 through an inlet 6. An auxiliary burner 5 is provided. In an alternative embodiment, a combustion duct 4', Fig. 4, serves as the calciner.
Patent GB-360935-A (GB)
IPC: H01F38/26
Filed: 1930-07-10
Abstract: 360,935. Transformers. KOCH & STERZEL AKT.-GES., 40, Zwickauerstrasse, Dresden, Germany. July 10, 1930, No. 20948. Convention date, July 27, 1929. [Class 38 (ii).] In a transformer such as a measuring transformer for use on high-tension circuits, the high-tension winding 17 is built up of a number of series-connected disc coils housed in an insulating spool or carrier 14 of U-shaped cross section, the low potential or earthed end of the winding being adjacent the open end of the spool whilst the other end is led out through an insulator 16 formed integrally with the spool. The outer surfaces of the spool are metallized, and the walls thereof may be tapered as shown, or of equal thickness throughout. In a modification, Fig. 4, two inversely telescoped spools each carrying a leading- out insulator are used. The low-tension winding 12 is disposed within the spool around the centre limb of the core. A mounting flange 26 may be secured to the upper yoke to facilitate ceiling or wall fixing. Three such winding systems may be arranged on a three-linked core to form a threephase transformer.
Patent GB-697701-A (GB)
Title: Method and means for depositing varnishes upon surfaces
IPC: B05B5/16
Filed: 1951-09-05
Abstract: In a modification of the apparatus described in the parent Specification for the <PICT:0697701/III/1> electrostatic projection of varnishes and the like upon surfaces, the varnish is forced through a compressible elastic feed tube from the feed tanks to the nozzle by tightly compressing the tube from point to point progressively towards the nozzle.  In Fig. 1 the feed tank 1 is connected by means of a compressible tube 2 to a spray nozzle 5 which contains an electrode 8 fed with high voltage current.  The tube 2 rests on the anvil 3 and is compressed successively from point to point over a certain length by the rollers 4 mounted at regular intervals on the rotatable disc 9.  The compressible tube is preferably contained between metal foils 7.  The distance of the anvil 3 from the centre of the disc 9 may be adjusted by means of an eccentric.
Patent GB-479089-A (GB)
Title: Improvements in and relating to sound recording apparatus comprising glow discharge lamps
IPC: G11B7/00
Filed: 1936-07-29
Abstract: 479,089. Discharge lamps. GILLET, A. A. July 29, 1936, No. 21032. Convention date, July 30, 1935. [Class 39 (i)] In sound-recording apparatus a lamp has a filament cathode 4 surrounded by a cylindrical anode 5 having a slit 6 parallel with the axis of the cathode.
Patent GB-983814-A (GB)
Title: A method for preparing alkylene oxide polymers
IPC: C08F4/50
Filed: 1962-05-31
Abstract: Alkylene oxide homopolymer and copolymers are made by polymerizing one or more alkylene oxides in the presence of a catalyst comprising the reaction product of an organometallic compound of the general formula M(R)n, where M is zinc or tin, n is an integer corresponding to the valency of M, and R is a C1 to C5 alkyl group, and an organic compound containing at least two hydroxyl groups and/or mercapto groups, or a hydroxyl group and a mercapto group.  The polymerization may be effected in bulk or in a hydrocarbon or ether solvent. Specified alkylene oxides are ethylene, propylene, butylene, and styrene oxides, and butadiene monoxide. Exemplified organometallics are diethyl and diisobutyl zinc, and tetraethyl tin.  The Specification contains an extensive list of suitable organic compounds.  Exemplified compounds are sucrose, mono- and di-palmitate, ethylene glycol, butandiol, the monopotassium alcoholate of sucrose mono-palmitate, sucrose, glucose, sorbitol, sorbose, diacetone sorbose, pentaerythritol, glycol, polyethylene glycol, polypropylene glycol, polyvinyl alcohol, 2,6-di-(hydroxyethyl) pyridine, tri-(hydroxymethyl)-aminomethane, dimethylsilane diol, methylsilane triol, catechol, resorcinol, hydroquinone, pyrogallol, inositol, dihydroxynaphthol, thioglycol, and alizarine.  After polymerization, the catalyst may be decomposed by aqueous methanol.  The polymers have intrinsic viscosities of up to 20.ALSO:A polymerization catalyst for alkylene oxides comprises the reaction product of an organometallic compound of the general formula M(R)n wherein M is zinc or tin, n is an integer corresponding to the valency of M, and R is a C1-C5 alkyl group, and an organic compound containing at least two hydroxyl groups and/or mercapto groups or a hydroxyl group and a mercapto group.  The organic compounds may be selected from polyhydric alcohols, phenols, thioalcohols and thiophenols, hydroxyalkyl mercaptides, polyalkylene glycols, polyvinyl alcohol, partially hydrolysed polyvinyl acetate, carbohydrates and derivatives thereof, hydroxy nitrogen-containing compounds, primary condensates of phenol and formaldehyde, and hydroxy silicon-containing compounds.  The Specification contains an extensive list of these compounds.  Exemplified compounds are sucrose mono- and dipalmitate, ethylene glycol, butandiol, the monopotassium alcoholate of sucrose monopalmitate, sucrose, glucose, sorbitol, sorbose, diacetone sorbose, pentaerythritol, glycol, polyethylene glycol, polypropylene glycol, polyvinyl alcohol, 2,6-di-(hydroxyethyl) pyridine, 2,4,6-tri-(hydroxyethyl) pyridine, tri-(hydroxymethyl) aminomethane, dimethylsilane diol, methylsilane triol, catechol, resorcinol, hydroquinone, pyrogallol, inositol, dihydroxynaphthol, thioglycol, and alizarine.  Exemplified organometallics are diethyl and diisobutyl zinc, and tetraethyl tin. The catalyst is preferably formed in a hydrocarbon diluent such as benzene.
Patent GB-373007-A (GB)
Title: Improvements relating to boxes, trays or like carriers for fruit, fish and the like
IPC: B65D25/28
Filed: 1931-07-23
Abstract: 373,007. Handles for boxes, trays, &c. PORTER, R. H., 18, Windsor Avenue, Great Yarmouth. July 23, 1931, No. 21061. [Classes 18 and 133.] The handles of boxes, trays, or like carriers for fruit, fish, &c. are arranged to be slidable vertically on guides attached at the upper and lower ends to the side walls, so that they may be depressed to facilitate the stacking of the carriers. The sides 3 of the strip-metal handle 1, Fig. 1, are formed with flanges 4 engaging over guide pieces 5 attached to the walls of the carrier in the manner shown. Fig. 4 shows a modified construction in which the sides of the handle are formed with slots 12, the curledover attachment pieces 10 at the upper ends of the guides passing through the slots. Fig. 5 shows a construction in which the handle and guides are formed from wire rod, the side pieces 3 having loops 4b, 4c, slidable over the guides 5. The side walls 6 of the carriers are formed of less height than the end walls, or are suitably recessed to accommodate the handles.
Patent GB-960947-A (GB)
Title: An improved heating system for caravans
IPC: B60H1/22
Filed: 1962-06-01
Abstract: 960,947. Space heating systems for caravans; supporting burners. W. F. MURRAY. May 30, 1963 [June 1, 1962], No. 21165/62. Headings F4T and F4U. A caravan heating system comprises a water boiler 10 sunk into the caravan floor 11, a gas or oil burner below the boiler, the boiler being connected by flow and return pipes 15 and 17 to a number of radiators (e.g. 16 and 18) within the caravan and by pipes 22 and 23 to a header or tank 21. The gas supplying the burner may be ignited by an electric resistance in a circuit which is closed and opened by a switch (not shown) within the caravan and the gas flow may be controlled by a thermostatic valve. A glazed port 26 in the floor allows the burner flame to be seen. The burner may be of ring form (13), suspended by springs 12 and spaced from the boiler by distance pieces 14. The radiators may comprise tubes bent in a zig-zag shape and extending through vertical plate fins. The radiators 16, 17 are connected in parallel in the system shown.
Patent GB-320837-A (GB)
Title: Improvements relating to the control pedals of motor road vehicles
Filed: 1928-10-10
Abstract: 320,837. Smart, A. Oct. 10, 1928. Divided on and addition to 312,014. Drawings to Specification. Controlling different functions by same lever; pedals and pedal levers.-In a control pedal for motor vehicles, of the type adapted to operate two controls as described in the parent Specification, the point or axis about which the pedal is adapted to be rocked lies in or intersects the line of direct forward pressure of the foot. The construction is identical with that described in the parent Specification.
Patent GB-212927-A (GB)
Abstract: 212,927. M³ller, C. F. O. March 15, 1923, [Convention date]. Void Published under Sect. 91 of the Act]. Vaporizing by heat.- Apparatus for producing vapours of disinfectants, medicaments &c. to be diffused into a room, or to be inhaled directly through a tube, comprises an outer cupshaped casing b, an electric lamp d mounted in a holder e at the base f of the casing, and an inner liquid-receiving vessel a which depends into the casing b and is formed at its base with an upwardly directed' recess c which encloses the lamp d but is spaced therefrom. The vessel a may be closed by a perforated cover g, Fig. 1, or by a cover h. Fig. 2, formed with an opening closed by a stopper i through which is passed an inhaling tube k. The vessels a, b may be formed of glass, porcelain, or sheet metal; the vessel a preferably being transparent and the casing b either transparent or perforated, The Specification refers also to known apparatus wherein a liquid-receiving vessel is either in the form of a hood fitting directly on the electric lamp or in the, form of a bowl fitted to the cover of the outer casing.
Patent GB-873260-A (GB)
Title: Improved spindle drive for double-sided spinning and twisting frames
IPC: D01H1/241
Filed: 1959-06-22
Abstract: 873,260. Tensioning belt-drives for spindles. WIESCHEBRINK, R. June 22, 1959, No. 21326/59. Class 120(2) An endless belt drive for stationary spindles in double-sided spinning &c. frames having tensioning-rollers e.g. d, d 1  each bearing against the belt between two spindles C 1  ... C 4  and supported within the path of the belt on pivoted arms e, e 1 , the arms have forked-shaped ends and are pivotable independently, and the rollers are pressed against the belt by rigid and adjustable springs at the pivots.
Patent GB-1286770-A (GB)
Title: Azo dyestuffs salts
IPC: C09B69/04
Filed: 1971-04-19
Abstract: 1286770 Polyamide printing ink compositions CIBA-GEIGY AG 19 April 1971 [10 Feb 1970] 21344/71 Heading C3R [Also in Division C4] Bis-dicyclohexylamine salts of dyes of formula wherein R represents a C 1 -C 4  alkyl group are used in the preparation of printing inks. In an example the dye salt is mixed with a spirit soluble polyamide resin modified with esters, benzine, water ethanol and isopropanol. The resulting printing ink is used in flexographic printing on cellulose glass, giving a greenishyellow film having good adhesiveness and light fastness.
Patent GB-625517-A (GB)
Title: Improvements in or relating to hand tools for use in agriculture or horticulture
IPC: A01B1/22
Filed: 1947-08-06
Abstract: 625,517. Planting-tools. JOBSON, G. B. Aug. 6, 1947. No. 21396. [Class 6(ii)] [Also in Group XXIII] A single staff 1 serving as a handle for a number of interchangeable tools for use in agriculture has attached at one end a footstep 2 and depth limiting device 3. The footstep 2 welded to the socket 13 has a pointed outer end 20 for forming seed drills and the disc 3 is welded either to the socket 13 or to the end of the hollow, stainless steel staff 1 extending through the socket. Tools such as a rake, hoe or a dibber 4, T-shaped handle 5, or knob for use as a heeling-in device have shanks externally threaded to screw into the threaded sockets 13 and 17 or into solid plugs welded therein or alternatively the shanks are tubular and internally threaded to engage external threads on the sockets or the ends of the staff. A rack is provided for storing the tools. The staff is inscribed with measuring marks.
Patent GB-578413-A (GB)
Title: Improvements in or relating to mechanism for feeding statistical record cards and delivering them to a receiver
IPC: G06K13/08
Filed: 1943-12-21
Abstract: 578,413. Card-delivery mechanism. THOMAS, A. Dec. 21, 1943, No. 21421. [Class 100 (i)] [Also in Group XIX] In a statistical machine, record cards are delivered to the bottom of a receiver successively, after operation thereon by the machine, by means of a platform which lifts a card between a pair of yielding supports within the receiver whereby a stack of cards is progressively formed within the receiver. Blank record cards are fed in known manner from a magazine 1 by picker mechanism, not shown, and feed rollers 3, driven from the main-shaft 19. The card enters a space between die plates 4, 5 and is arrested by a stop bar 6 urged upwards by a spring 35. A set of punches 25 are freely slidable in guideways in a block 28 secured to the die plate 4 and one punch in each column can be selected for operation by manually set bars 45, a projection 46 on which is positioned over the selected punch. An eccentric 33a on a shaft 18, driven intermittently by mutilated gear mechanism from the main-shaft 19, then lifts the die plates 4, 5 and block 28, the selected punches being held against longitudinal movement and perforating the card accordingly. As the die plates descend, a cam 44 on the main-shaft operates a link 41 to rock a shaft 38, an arm 37 on which engages a slot in the stop bar 6 to pull it downwards, whereupon the card is fed forward by rollers 7 and 8 to a platform 52 (also Fig. 2) comprising vertical supports 57 and an under plate 56 embracing and slidable along a bar 53 transverse to the path of the card and pivoted at 54. An eccentric 17 on the main-shaft then rocks a lever 71 clockwise to rock a toothed lever 67 counterclockwise to drive a pinion 65 and arm 59 whereby a link 62 drives the platform 52 to the right in Fig. 2, the arms 59, 62 passing the dead-centre before the return movement, whereby the platform is caused to dwell beneath the receiver 58. As the platform 52 arrives below the receiver 58, the righthand end of the lever 67 engages and lifts a projection 75 on the bar 53, whereby the platform 52 lifts the record card, which overhangs the platform on either side. The edges of the card engage flaps 80, lightly spring-pressed inwards, and rock them outwards until the card has risen above the flaps which then return inwards beneath the card which is thus put at the bottom of a stack of cards in the receiver. The platform 52 then lowers and returns to original position to receive the next card. The stack may be weighted. The punching device may be replaced by a tabulator.