baber/WOPTO huggingface dataset:
Patent GB-569867-A (GB)
Title: Improvements in variable pitch propellers
IPC: B64C11/42
Filed: 1943-12-08
Abstract: 569,867. Variable-pitch propellers. STRAUSSLER, N. Dec. 8, 1943, No. 20532. [Class 114] In a variable-pitch propeller in which pitch adjustments are effected in one direction by a fluid-pressure operated member and in the other direction by resilient means, each blade root carries an eccentric projection lying between a pair of abutments operable in opposite directions bv the fluidpressure operated member and the resilient means. In the form shown, a valve-controlled pipe 42 supplies pressure liquid to a portion of a tubular propeller shaft 7 serving as a cylinder for a piston 11. The abutments are in the form of substantially triangular plates - 21, 22 which, together with a spacing sleeve 25, are secured on a tubular extension 24 of the piston 11 by. nuts 24a. The plate 22 carries an abutment 29 for pistonopposing springs 30, 31 which also engage a shoulder 32 in the interior of a hollow spinner 15. A bearing sleeve 18 on the root of each blade 16 carries a crank-pin 26 on which is rotatably mounted a rectangular block' 27 disposed between the plates 21, 22. The forward end of the piston abuts a nut 33 screwed into the shaft 7, the nut being rotatable to adjust the initial pitch of the blades by means of a rod 35 extending through the piston to the back of the spinner. The shaft 7 is connected to a driving shaft by means of a universal coupling 4 within a housing comprising two parts 1, 8 connected by vertical trunnions 10 whereby the propeller may be used for steering purposes.
Patent GB-293290-A (GB)
Title: Improvements in bandages or catamenial appliances
IPC: A61F13/53
Filed: 1927-08-05
Abstract: 293,290. Richter, J. July 2, 1927, [Convention date]. Catamenial appliances. - A catamenial bandage comprises an absorbent pad 2 which is covered on one side by a sheet of gauze 1 the ends of which are turned over the edges of the pad 2, the whole being then folded about the centre line with the absorbent material inside. The bandage is closed at the ends by an easily opened seam, the threads of which may serve as loops for attaching to a belt. The pad is preferably of cellulose wadding. The bandage is readily disintegrated by means of flushing water.
Patent GB-208098-A (GB)
Abstract: 208,098. Akt.-Ges. Brown, Boveri, et Cie. Dec. 18, 1922, [Convention date]. Regenerative systems; safety arrangements. - In regenerative braking arrangements for a group of direct current motors, the armatures e are in parallel with the field windings g, and means such as a choking ccil c are used to adjust the time-constants of the two parallel branches to approximate equality as a precaution against :surges of armature-current when the voltage of the supply varies. Additional ohmic resistance may be put in the field circuit for the same purpose. The arrangement shown also includes balancing resistances d in the armature circuit.
Patent GB-382283-A (GB)
Title: Improvements relating to track braking apparatus for railways and the like
IPC: B61K7/04
Filed: 1931-07-21
Abstract: 382,283. Track brakes for vehicles. PETER, L. H., 82, York Road, King's Cross, London, and GES. FœR OBERBAUFORSCHUNG UND RANGIERTECHNIK, Europahaus am Anhalter Bahnhof, Berlin. July 21, 1931, No. 20827. [Class 103 (i).] Relates to track-braking apparatus of the type comprising brake-bars 5, 6 or the like located beside the track 4 and adapted to be brought automatically into engagement with the wheels of a vehicle by electromagnetic means so that retardation is effected by frictional and by eddy-current braking. According to the invention the apparatus is adapted for vehicles having wheels of the Mansell type, in which the flanged rim 1 of the wheel is detachably bolted to the central portion 2, by forming the face of each brakebar 5, 6 or of the shoe 7, 10 carried thereby so that it engages frictionally with the wheel and rim below the securing-bolts 3 and extends upwards above the bolts with an air gap 8, 11 between the extended portion and the bolts, through which gap magnetic flux is transmitted for the eddy-current braking. In a modification the brake-bar 5 is provided with a projection engaging in a recess on the rail 4 in order to increase the area of the path of the magnetic flux.
Patent GB-1385587-A (GB)
Title: Internal combustion engine air intakes
IPC: F02M31/06
Filed: 1972-05-04
Abstract: 1385587 I.C. engine air intake GENERAL MOTORS LTD 4 May 1973 [4 May 1972] 20842/72 Heading BIT [Also in Division F1] An internal combustion engine air cleaner has an air intake tube extension 3 which slides axially from a retracted to an extended position whereby cooler or warmer air is drawn in. Funnel shaped mouth 5 having neck 4 slides on radially projecting ribs 6 of intake tube 2 and is locked in an extended position by projection 9 of neck 4 engaging teeth 8 in tube 2. In the fixed retracted position where tube 2 is the effective intake the clips 12 of neck 4 engage projections 11 of intake tube 2. Tube 2 and extension tube 3 may be of moulded plastics material.
Patent GB-782051-A (GB)
Title: Improvements in or relating to countercurrent contacting of fluids
Inventor: GRUNEWALD GLEN ROGER
IPC: B01D11/04
Filed: 1953-07-28
Abstract: <PICT:0782051/III/1> <PICT:0782051/III/2> A process for effecting continuous counter-current contact, in a plurality of superimposed contacting zones separated by horizontal perforated partitions, between a liquid introduced into the highest zone and a fluid which is lighter than and incompletely miscible with the liquid introduced into the lowest zone, comprises maintaining upper and lower layers of fluid and liquid respectively in at least two zones; passing liquid from the lower layer downwardly through the perforations of the partition into the next lower zone and therein in dispersed state through the upper layer into the lower layer; passing the fluid from the upper layer at approximately the interface between layers through at least one transfer conduit in a substantially unbroken stream into the upper layer in the next higher zone; and regulating the withdrawal of liquid from the lowest zone so that the interface in the highest zone containing two layers is maintained below the outlet of the transfer conduit.  From 2 to 200 contacting zones may be used. The process may be used for liquid-liquid or liquid-gas contacting, for example for extracting aromatic compounds from hydrocarbons such as petroleum fractions containing also paraffinic and/or naphthenic or olefinic hydrocarbons, using as selective solvent such organic liquids as furfural, phenol and glycols, e.g. diethylene, triethylene and dipropylene glycol and b ,b 1-dipropionitrile; for removing phenols or sulphur-containing compounds from gasolines with aqueous caustic alkali solution; and for removing phenols from gasoline with amines.  The extraction of a petroleum fraction, containing benzene and other aromatic hydrocarbons boiling at 65-81 DEG  C., with aqueous diethylene glycol solution preferably containing 5-15 per cent of water, is described.  With reference to the extraction column shown in Fig. 1, naphtha is introduced into the column by conduit 3 and flows upwards as the continuous phase through transfer conduits 6, 18, 19, 20, 21 and 22 and is withdrawn through conduit 23.  The solvent enters the column through inlet 7 which may have a spray head 8 attached to the end of the conduit, and flows downwardly through perforated plate 2 and the remaining plates and is withdrawn from conduit 9.  A liquid level indicating device may be provided, for example by ball float 10 placed at the interface on the uppermost plate 2. The transfer conduits may be designed as shown in Fig. 2. Methods of starting-up the process are described.
Patent GB-1425243-A (GB)
Title: Closure and gripping device for containers
IPC: B65D45/02
Filed: 1973-05-02
Abstract: 1425243 Closure device; portable containers FEREMBAL 2 May 1973 [23 May 1972] 20871/73 Headings B8T and B8D A closure device for a container with a flanged recessed cover comprises a one-piece moulded plastics reusable clamping ring carrying spaced C-clips and either one or two semicircular carrying handles. The cover 3 is a tight-fit within the mouth of the container 1 with its flange 5 resting on a flange 2 of the container 1. A series of C-clips 8 clamps the flanges 5, 2 together and are carried and spaced by a retaining ring 6. A semicircular handle 11 has a thin section 17 (Fig. 6) at its ends attached to heavier C-clips 9, 10 and a U- section over the remainder of its length, i.e. between 11<SP>1</SP> and 11<SP>1</SP> (Fig. 1). The handle 11 is attached to each intermediate C-clip 8 by a thin section 18 which must be cut through to allow the handle to flex at 14 and 15 into the carrying position and in particular to permit the entire clamping ring to be detached before the container lid 3 can be removed. The C-clip 10 is connected to the adjacent C- clip by a channel section 7; a similar section may be added between C-clip 9 and the adjacent C-clip 8 furthest from the handle 11. Another embodiment, Figs. 3, 4 (not shown), shows two carrying handles 12, 13 symmetrically disposed about a diameter.
Patent GB-284361-A (GB)
Title: Improvements in and relating to electric signalling systems
IPC: H04L25/03
Filed: 1926-08-25
Abstract: 284,361. Eastern Telegraph Co., Ltd., (Higgitt, H. V., and Jenkins, J. S.). Aug. 25, 1926. Signal-shaping at transmitter; eliminating effects of disturbing currents; restoring or modifying imperfect signals.-In an arrangement for shaping the signals and at the same time reducing the "wandering zero" effect there are provided, at the transmitting station, a series resistance d and a shunt circuit including a resistance f and series-connected condenser e, and, at the receiving station, an inductance j shunted across the circuit of the receiver h. Part of the inductance j is preferably shunted by a resistance m. In a modification the condenser e is replaced bv an inductance.
Patent GB-458575-A (GB)
Title: Improvements in and relating to turret lathes
IPC: B23B3/16
Filed: 1936-07-29
Abstract: 458,575. Lathes. PITTLER WERKZEUGMASCHINENFABRIK AKT. - GES., Wahren, Leipsic, Germany. July 29, 1936, No. 21017. Convention date, March 14. [Class 83 (iii)] A turret lathe with a vertical turret toolhead has a surfacing gear adapted to rotate the turret head in either direction for tooling the face of the work. The turret tool-head 14, Fig. 2, carrying tools 5 is rotated to face the workpiece W by spur gears 12a, 13, worm gears 9 and 10 driving through a friction clutch 11 and a reversing bevel gear at the back of the lathe which receives motion from the drive shaft 2. The bevel gears 5, 6, Fig. 3, for forward or reverse drive are engaged by a collar 19 slidably keyed to the shaft 2 ; movement of the collar is effected by a roller 17a, engaging the collar, carried by a yoke 17 fixed to the end of a hand-rotated rod which passes to the front of the machine. A lever 29, Fig. 5, integral with the yoke member rotates therewith and is normally urged into the vertical by a pair of springs 34a, 34b. When moved by the hand control which engages the surfacing drive, this lever is retained in the engaged position by one or other of the latch members 28a, 28b. A triangular plate 26 fixed to a shaft 25, is adapted to trip the operative latch member and thus allow the lever 29 and the clutch collar 19 to spring into the disengaged position. Rotation of the shaft 25 is effected by fixed stops 36, Fig. 6, on the turret head engaging a trip 37 which partially rotates a spring-returnable shaft 38 connected by gearing to the shaft 25, the latter may also be rotated by hand to trip the surfacing feed.
Patent GB-1334163-A (GB)
Title: Telephone circuits utilizing active elements
IPC: H04M1/74
Filed: 1971-04-19
Abstract: 1334163 Aritisidetone circuit, line length compensator NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 19 April 1971 [7 Feb 1970] 21053/71 Headings H4R and H4K In an antisidetone circuit the output of a transmitter 101 is connected between one terminal of a transistor 6, and a common line terminal L 1 , a receiver is connected between another terminal of the transistor 6 and the common line L 1 , and a balancing network 7 is connected between the terminal of the transistor to which the transmitter signal is applied and the terminal of the transistor connected to the receiver, to provide cancellation of the transmitter signal at the receiver. The transmitter and receiver both have the source drain paths of respective FET's 33, 34, connected across them with the FET gates connected to the tapping of a potentiometer 31, 32 fed with the line potential so that the sensitivities of the transmitter and receiver are controlled in accordance with line length. As shown the transmitter is connected to the base of transistor 6 via an amplifier 103 powered with a constant voltage developed across a pair of Zener diodes 86, 87 in a bias circuit of a constant current circuit 8 supplying transistor 6. In an alternative arrangement, Fig. 1 (not shown), the amplifier 103 is omitted.
Patent GB-224313-A (GB)
Title: Improvements in or relating to drying or heating apparatus
IPC: D21F5/02
Filed: 1923-08-20
Abstract: 224,313. Schmidt, O. Aug. 20, 1923. No Patent granted (Sealing fee not paid). Rollers, hollow.-A roller for drying or heating apparatus, heated internally by steam, comprises a series of independently mounted electrical heating elements which generate the steam within the roller. The roller is provided with six metallic tubes c fixed tightly in holes in its ends, and each having screwed into it two silica tubes f containing heating coils g connected to brush terminals h making wiping contact with rings i, j, k. The rings i are connected to one supply main, and the rings j, k to the other. One terminal of each coil makes contact with a ring i, while at each end two of the other terminals make contact with a ring i and the other four with a ring k. Switches allow two, four, or six pairs of coils to be heated. The roller contains water through which the coils pass in turn; an inlet m, a drain cock o, and a safety valve are provided. The heating of the drying rollers in a paper making machine may be individually regulated. The rings j, k may be replaced by a single ring divided into insulated sectors any of which may be cut out of the circuit; or the temperature may be controlled by a rheostat. In a modification, the ends of the roller are integral with hollow trunnions rotating on a shaft, the middle portion of which is formed as a hollow drum carrying brackets which support the coils. In a further modification, a cylindrical wall of heat-insulating material confines the steam and water to the annular outer portion of the roller interior, and water may be supplied and stream discharged through a stationary hollow shaft provided with valves.
Patent GB-700914-A (GB)
Title: Rubber-to-metal adhesives and method of making same
Filed: 1950-08-25
Abstract: A product for the formation of rubber-to-metal adhesives is made by reacting an acidic material with a copolymer of from 20 to 50 per cent. of a conjugated diolefinic compound of less than 7 carbon atoms and from 80 to 50 per cent. of a hardening component selected from copolymerizable mono - olefinic compounds, at least 10 per cent. of the copolymer comprising a mono - olefinic ring compound containing a ring nitrogen atom, the acidic material having a pH of less than 7 when wetted with water and having an anionic component which forms with hydrogen an acid that is stronger than acetic.  The acidic substances include salts of inorganic acids, such as sulphuric, hydrochloric and phosphoric acids, with basic materials such as iron, lead, zinc and aluminium oxides; these acids themselves; and partial esters of these acids. If the acidic material is water-insoluble, the adhesive formed is not water-sensitive.  Organic acids such as oxalic and the sulphonic acids may be used but preferred are the esters and salts of phosphoric acid which salts may be formed in situ in the reaction.  Examples of ring nitrogen compounds are the vinyl pyridines, 2 - vinyl 5 - ethyl pyridine, 2 - vinyl - 4, 5 - dichloropyridine, 2 - isopropenyl - 4, 5 - dichloropyridine, 2 - isopropenyl - 4 - methyl - 5 - chloropyridine, and other substituted vinyl pyridines, 2 - vinyl quinoline, 2 - isopropenyl quinoline, 2 - vinyl - 3, 6 - dichloroquinoline &c.  Specified diolefinic compounds are butadiene, isoprene, 2, 2  - - dimethyl butadiene, chloroprene and cyanoprene.  A third component is preferably included in the copolymer and may comprise styrene, alpha - methyl styrene, mono - and dichloro - styrenes, 3, 4 - and 3, 5 -dichloro - alpha - methyl styrene, methyl methacrylate, methyl acrylate, and acrylo- and methacrylonitrile.  The acidic material may be reacted with the copolymer by mixing in a mill or mixer, preferably in the presence of some water.  Generally about 10 to 40 per cent. of acidic material based on the weight of polymer is used.  The reaction product may be dissolved in a solvent and applied as a film-forming adhesive. Preferred solvents are benzene, toluene and xylene which are improved by addition of 1 to 10 per cent. of a polar organic compound such as pyridine, picoline, aliphatic amines, tetra-ethylamine, naphthalene, piperidine and aniline.  The adhesive may also contain an unsaturated polymerizable acid for improving adhesion, examples being maleic and itaconic acids.  Further, two copolymers of different hardnesses are preferably used, the mixing being done before or after reaction with the acidic material.  The reaction mixture also generally contains fillers, e.g. carbon black, plasticizers, e.g. dibutyl phthalate, and vulcanizing ingredients, e.g. zinc oxide and phenyl-beta-naphthylamine.  After application of the adhesive between the metal and rubber, the compound structure is cured by heating under pressure.  U.S.A. Specifications 2,311,656, 2,340,321, 2,366,895 and 2,386,213 are referred to.
Patent GB-1292777-A (GB)
Title: Heat exchange apparatus for cooling gases
IPC: F28D7/10
Filed: 1971-04-19
Abstract: 1292777 Tubular heat exchangers; gas cooling installations ARBEITSGEMEINSCHAFT LENTJES-REKUPERATOR 19 April 1971 [23 Feb 1970 26 May 1970] 21174/71 Heading F4S A heat exchanger, in particular a cooler for cooling cracked gases to a temperature of 500 to 550‹ C., comprises an annular array of tubes 16 to which the gases flow via an inlet 4, a distributing cone 8 and a baffle 18, the coolant e.g. boiling water or molten lead or sodium from a centrally-disposed axially directed coolant supply pipe 19 being distributed in a generally uniform manner over the tubes. As shown in Fig. 2 the tubes extend through a casing 13 between end plates 14, 15. The baffle 18 may reinforce the end plate 14 which may therefore be made relatively thin. To minimize thermal distortion the end plate 14 may be thickened in the region of the outlet of the coolant supply pipe 19. The coolant flows from the pipe 19 to a space below an intermediate plate 20, and from this space the coolant flows over the tubes 16 via ducts 31 to an outlet 32. The gas, after cooling in the tubes 16 passes to a coolant hood 34. Overcooling of the gas at the outlet ends of the tubes to a temperature below its dew point may be prevented by thermal insulation and/or a double-walled arrangement of the tube at this end, e.g. 43, Fig. 4 (and Fig. 7), adapted to prevent undue cooling of the tube wall. In an alternative arrangement (Fig. 10) each gas cooling tube (75) has its own individual coolant jacket (formed by tubes 74) the casing 13 of Fig. 1 being omitted. Several of these heat exchangers may be connected in parallel and the gas flow from these directed to a further heat exchanger (Fig. 8), a common coolant water system serving all the heat exchangers. The vaporized coolant from such a group of heat exchangers may be collected in a drum (e.g. 51, Fig. 6). The individual heat exchangers may be supported by slinging (see Figs. 1, 7, 10).
Patent GB-276021-A (GB)
Title: A method of reducing the interfering influences upon telephone and telegraph systems from currents of high frequencies in circuits fed by rectifiers
IPC: H04L25/08
Filed: 1927-08-13
Abstract: 276,021. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Aug. 14, 1926, [Convention date]. Filter circuits. - To reduce the interference on telephone and telegraph circuits due to alternating currents present in a rectifier-fed power distribution line a rejector circuit L, C in series with a choke L1 is inserted in the power line. The rejector circuit is tuned to a frequency between two harmonics occurring in the power line, preferably those frequencies which cause the greatest interference. The inductance L may be part of a choke coil, the remaining winding representing the choke L1 and may be provided with an iron core. Further rejector circuits may be inserted in the line if numerous interfering harmonics occur. Formulµ and numerical data are given in the Specification showing how the proportion of inductance to capacity of the rejector circuit and the ratio of its impedance to that of the choke may be determined.
Patent GB-167778-A (GB)
Title: Improvements in and connected with the cooling of electric generators driven by steam turbines
IPC: H02K9/10
Filed: 1921-08-12
Abstract: 167,778. Maschinenfabrik. Oerlikon. Aug. 12, 1920, [Convention date]. Right to Patent Relinquished. Condenser systems.-In a steam-turbine-driven electric plant in which a condenser is used and in which the generator cooling-air is cooled by an apparatus fed with cooling water, this water is circulated by the same pump or other operative medium as is the water of the condenser. The air-cooling water may be either cooling or condensed water from the condenser and if the amount used for the cooling apparatus or the feed pipe is found to be unsuitable, a portion only is preferably diverted. If the plant runs non-condensing, arrangements are made for a direct supply of the generator cooling-air without passing cyclically through the cooling apparatus.. Alternatively, the pump valves may be so adjusted to supply only the amount of water required by the cooling apparatus.
Patent GB-1278897-A (GB)
Title: Artificial horizon repeater for aircraft
IPC: G01C19/32
Filed: 1970-05-05
Abstract: 1278897 Attitude indicators for aircraft MICROTECNICA SpA 5 May 1970 [17 May 1969] 21497/70 Heading B7W An artificial horizon repeater includes an attitude indicator element 1 pivotally mounted by a shaft 2 in a stirrup 3 and driven through a shaft 35 by a drive means 16, (17), (Fig. 2, not shown), to rotate so as to indicate pitch angle while the stirrup 3 has a shaft 4 pivotally mounted in a fixed support 5-7 and is rotated by drive means 8, (9) to indicate roll angle, and differential gearing 25-29 is provided to ensure that movements of the attitude indicator element 1 are independent of those of the stirrup 3. The drive means 8, (9) and 16, (17) each comprise a motor (9), 16 and receiver 8, (17) connected in circuits with transmitters which detect pitch and roll angles from a gyroscopic artificial horizon. Motor (9) and receiver 8 rotate shaft 4 through gearing 10-15 while motor 16 and receiver (17) drive a shaft 24 through gearing 18-23. Rotation of shaft 24 drives a shaft 30 through gearing 25-29 and through further gearing 31-34, 36 shaft 35 is rotated through the same angle as shaft 24. The attitude indicator element is driven through bevel toothed wheels 37, 86 by shaft 35. Rotation of shaft 4 causes shaft 35 to rotate through the same angle by means of the gears and shafts 25-34, 36 so that movement of the stirrup does not cause movement of the attitude indicator element.