baber/WOPTO huggingface dataset:
Patent GB-164793-A (GB)
Title: Improvements in condensers, dephlegmators, and column stills
IPC: F28B1/00
Filed: 1920-02-09
Abstract: 164,793. Douglas, R. P. Feb. 9, 1920. Surface condensers; column stills and rectifiers. -In a surface condenser, column still, or dephlegmator consisting of an outer casing a, Fig. 1, forming a series of hollow elements which contain loose plates b with serrated edges, grooves, or ridges are formed on the upper part of each element or on the lower surface of each plate so as to cause the condensed liquid to flow as much as possible over the inner surface of the casing when maximum cooling is desired or over the surface of the plates b when minimum cooling is desired. In the surface condenser shown in Fig. 1, grooves b are formed on the lower sides of the plates b and cause the liquid to drip therefrom on to the lower surface of the casing. In the form for use as a reflux condenser, ridges k, Fig. 5, are formed on the upper surface of the sections to cause the liquid to drop onto the plates. The two forms may be combined for use as a surface condenser in one position and as a reflux condenser in the reversed position. In place of the grooves or ridges, lips o, Fig. 7, on the casing and b<11> on the plates may be used. The plates may be made in two sections joined by a bolt b<6> which carries a cup b<5> below the perforated central portion b<4> of the section which is at the bottom when minimum cooling is desired. Liquid enters the space between the sections by openings b<12> and flows from the cup. In place of the cups, downwardly tapering outlets may be used. The apparatus may be air-cooled, or may be surrounded by a casing to contain water. Liquid may be trickled over the outer surface of the apparatus, which may be fitted with troughs M, Fig. 5.
Patent GB-221426-A (GB)
Title: Improvements in film feed mechanism for kinematographic apparatus
IPC: G03B1/22
Filed: 1924-02-15
Abstract: 221,426. Vinten, W. C. Feb. 15, 1924. Kinematograph apparatus.-Intermittent feed claws are operated by two cranks rotated simultaneously at the same speed and synchronously with the shutter, and so disposed relatively to each other that the period of rest of the film is greater than its period of movement. The mechanism is mounted on a plate b carrying a curved guide c for the film a, the bar n carrying the pins d being carried by a frame o operated by the cranks f, g which are driven by pinions j, k both gearing with a pinion m forming part of the driving mechanism for the shutter &c. The crank g carries a slide block p mounted in the frame o so that the frame is oscillated by this crank and is reciprocated by the crank f. The cranks are so disposed that they are close together during the feeding stroke. Detent pins q adapted to engage the film when it is stationary are mounted on a bar r actuated bv a link s connected to the block p, A balance weight t may be mounted on either of the cranks.
Patent GB-915471-A (GB)
Title: Cladded metal frame members in curtain walls
Inventor: HEWS DARYL ALEXANDER
IPC: E04B2/96
Filed: 1960-02-04
Abstract: 915,471. Curtain walling frames. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 1, 1961 [Feb. 4, 1960], No. 3999/60. Class 20 (3). A metal frame member such as a mullion 1 has its exposed surface protected by a cladding 3 of a vinyl chloride polymer, e.g. a copolymer of vinyl chloride and vinyl acetate which containes up to 15% by weight of vinyl acetate, and of thickness 0.01- 0.1 inch, each of its longitudinal edges being turned outwards and clamped between a ledge 8 on the mullion and an adjacent window or panel frame 6. The minimum length of the cladding strips is 2 ft. and the maximum length is 15 feet and the maximum width of the trough is 6 inches and minimum width is one-quarter inch. The cladding may be formed by heating and bending to required shape or by vacuum forming or formed by extrusion.
Patent GB-200477-A (GB)
Title: Improvements in or relating to brick kilns
IPC: F27D3/12
Filed: 1923-02-10
Abstract: 200,477. Dubar, A. July 8, 1922, [Convention date]. Tram carriages for workshops and factories.- The floor 12 is stepped as shown, and the back 13 is inclined so that the bricks rest in inclined piles. The middle part of the floor at the front end of the wagon is cut away to allow the workmen to reach more easily the rear pile of bricks.
Patent GB-799864-A (GB)
Title: Improvements relating to indicating and controlling circuits
Inventor: REDDING ROBERT JAMES
Filed: 1955-02-10
Abstract: 799,864. Electric measurements. EVERSHED & VIGNOLES, Ltd. Jan. 19, 1956 [Feb. 10, 1955], No. 4056/55. Class 37. [Also in Group XXXVIII] Apparatus for measuring a resistor whose value may be dependent on, e.g., liquid level, comprises means for maintaining a constant current through the resistor by adjustment of a parallel resistance path whose current is proportional to the value of the variable resistance. As shown (Fig. 1) the current through a resistor 3 consists of the anode current of a valve 10, and the current taken by a variable resistor 5 which also passes through a coil 25 mounted on a lever 17 to produce a force, by co-operation with a magnet 26, normally balanced by a spring 19. If the resistance 5 decreases, its current increases, the force on coil 25 increases to make lever 17 engage fixed contact 15, whereby condenser 12 charges to increase the positive gridbias on valve 10 and increase the anode current, until the I.R. drop across resistor 3 is sufficient to reduce the current through resistor 5 and coil 25 to its normal value, when lever 17 disengages from contact 15. The steady value of anode current of valve 10, shown on meter 11, is then indicative of the value of resistor 5. Automatic compensation for minor variations in supply voltage is obtained by an auxiliary winding 27 opposing coil 25. In a modification (Fig. 2) lever 17 closes relay circuits at the fixed contacts which energize a motor 35 to vary parallel resistor 30 until balance at lever 17 is regained, simultaneously adjusting auxiliary equipment 31. The mechanical lever balancing device may alternatively be a magnetic amplifier having the constant current coil 25 as a control winding.
Patent GB-395064-A (GB)
Title: Improvements in and relating to metal compositions
IPC: C22C29/06
Filed: 1932-02-11
Abstract: A sintered alloy consists of tantalum carbide and a metal binder material consisting substantially of cobalt and tungsten, the tantalum carbide being in excess of the binder material. Powdered tantalum carbide, prepared as described in Specification 388,090, tungsten and cobalt are pressed and sintered between 1300-1600 DEG C.  The alloy may be used for tool tips or bits, being copper brazed to a steel shank.  Reference has been directed by the Comptroller to Specification 390,554.
Patent GB-637700-A (GB)
Title: Series-parallel control systems for electric motors
IPC: B60L15/04
Filed: 1948-02-12
Abstract: 637,700. Control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Feb. 12, 1948, No. 4102. Convention date, Feb. 13, 1947. [Class 38 (iii)] A series-parallel control system employing the bridge method of transition comprises relays which are responsive to the balance of currents in the bridge circuit and are arranged automatically to effect re-grouping of the motors by a suitably delayed interruption of the bridge connection. When changing from a series to a parallel grouping of the motors, for example, resistors in the bridge circuit are reduced in value and a relay, which is responsive to the difference between currents passing through a motor and a resistor in one branch of the bridge circuit, interrupts the transition connection when the resistor-current is slightly higher than the motor-current. In this manner premature operation of the relay is avoided, an additional starting-step being afforded. A polarized relay, or one connected to rectifiers, sensitive to the direction of current in the bridge connection may be used.
Patent GB-562156-A (GB)
Title: Improvements in flexible members for the transmission of mechanical power
IPC: F16C1/02
Filed: 1943-03-13
Abstract: 562,156. Flexible shafts and couplings. SHOLL, W. S. March 13, 1943, No. 4111. [Class 80 (ii)] A flexible shaft or coupling for transmitting rotary motion comprises a single outer tubular member A having an uninterrupted wall and made of rubber or like material, the tube being reinforced internally by solid members, liquids, semi-solids, or gases. The tubular member carries the whole of the torque transmitted. As shown, the tube A contains cylindrical pieces B, or thin plates E, and is fixed at its ends to rigid driving and driven shafts C. D. The reinforcing members may be axially spaced, separated by balls, linked together, or interconnected by ball-and-socket joints. They may also be tubular, or consist of balls or beads. Alternatively the tube may be packed with wool, cotton, or yarn, or filled with a powdered material, or the reinforcing members may be moulded on the inner wall of the tube.
Patent GB-1465171-A (GB)
Title: Method and apparatus for the preparation of sand moulds
IPC: B22C15/28
Filed: 1974-01-29
Abstract: 1465171 Foundry moulding E BUHLER 29 Jan 1974 [29 Jan 1973 12 Dec 1973] 04117/74 Heading B3G In a method of producing sand moulds using a mould frame or flask Ca, a pattern plate and a press punch Ba, the sand is introduced to the interior of the frame or flask through openings in the press punch whereby the sand flows in separate streams moving substantially perpendicularly to the plane of the pattern plate; the sand is fed from a chamber a by the impact of compressed gas supplied via a duct e<SP>1</SP> and apertures 1, 3, and the sand is accelerated in the chamber by passing through a Venturi passage; further compaction of the sand in the frame is produced by relative movement between the pattern plate and press punch during which some of the sand returns to the chamber a through the press punch openings. Before the application of the relatively high pressure gas the chamber a may be subjected to a lower pressure gas for fluidizing the sand, such fluidization being continued during the pressing operation. In Fig. 1 there are upper and lower frames Ca and Cb each housing a pattern attached to a hollow pattern plate D which may be evacuated; the frames are associated with upper and lower punches movable into the mould frames. Each punch comprises an annular fixed cylinder Fa, Fig. 2, with an annular piston. In Fig. 1 the sand chamber is Venturi shaped, and in Fig. 2 Venturi passages are provided by an apertured duct 60 from which fluidizing gas is emitted. The lower frame Cb may move sideways and for this purpose two lower frames may be interconnected and swivelled about a vertical axis so that when one frame is in an operating position the other is free. Similarly the pattern plate may be in the form of a double pattern plate divided horizontally and rotatable about a vertical axis so that the upper halves can be changed with respect to the lower halves, Fig. 6, not shown. Instead of being rotatable the separate halves may be moved on rails. The flask-less moulds are fed in abutting relationship to a casting and cooling line moving at right angles to the moulding machine axis. Such transportation may be effected by apparatus including a supporting grid composed of a set of stationary bars interspersed with a set of horizontally and vertically reciprocable bars. During such motion the mould sides are engaged by pivoted clamping plates. In Fig. 10 the stationary bars 22a<SP>11</SP>l and the reciprocable bars 34b<SP>11</SP>l include U-shaped mould abutting members 22a<SP>11</SP> and 34b<SP>11</SP> urged upwardly by adjustable springs.
Patent GB-1405052-A (GB)
Title: Polymer solution
IPC: C08J3/09
Filed: 1973-01-26
Abstract: 1405052 Coating solutions IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Dec 1973 [26 Jan 1973 (2)] 4126/73 and 55968/73 Divided out of 1405051 Heading C3R A solution for coating comprises a thermoplastic amorphous aromatic polysulphone dissolved in a solvent mixture comprising (a) 70% to 85% by volume of a cyclic aliphatic ketone and a low boiling highly polar inert liquid, the ratio of volume of cyclic ketone to inert liquid being from 70 : 30 to 95 : 5 and (b) 30% to 15% by volume of a high volatility dialkyl ketone, the concentration of the polysulphone being from 5 to 25 grams in 100 cm<SP>3</SP>, of solvent mixture. In an example an aromatic polyether polysulphone is dissolved in a mixture of cyclohexanone, dimethyl sulphoxide and methyl ethyl ketone. Other cyclic ketones mentioned are cyclopentanone and cycloheptanone. Other inert liquids are 1,1-dioxothiolan, N,N-dimethyl formamide, N,N-diethyl formamide, N-methyl pyrrolidone, aniline, pryidine and piperidine and another dialkyl ketone mentioned is acetone. Uses.-Casting films, impregnating and coating wire and other objects.
Patent GB-942946-A (GB)
Title: Improvements in or relating to the applying and attachment of strip material to workpieces
IPC: A43D43/06
Filed: 1960-02-08
Abstract: 942,946. Shoe insoles. BRITISH UNITED SHOE MACHINERY CO. Ltd. Feb. 8, 1960 [Feb. 9, 1959], No. 4313/60. Heading A3B. [Also in Division B5] A ribbed strip R (Fig. 15) is attached to an insole I by means of adhesive applied to the strip just before the strip and insole are brought into contact and pressed together. The invention is applied to a machine similar to that in Specification 707,899. The adhesive used is thermoplastic and is fed in rod form C from a spool 164 by feed wheels 206, 208 to a heated casing 214. The casing 214 has an inlet passage 216 (Fig. 7) merging into a passageway extending around a melting disc 220 on a shaft 222. A pair of gears 226, 228 feed the molten adhesive through passages 232, 236 (Fig. 7) and 238, 246 (Fig. 10) to a bore 248 communicating with a plurality of capillary grooves 250. The adhesive is extruded through the grooves 250 on to the flanges F<SP>1</SP> F<SP>2</SP> of the strip. Between the passages 238, 246 is a valve 242 which is opened and closed when the presser and feed member 56 (Fig. 7) is started and stopped respectively. The rod adhesive feeding means is also operated in timed relation to the feeding movements of the member 56 and at the same rate. The rate of feed by the member 56 is variable according to the extent to which a treadle (not shown) is depressed, the limit of movement of the treadle being predetermined by a stop member having a pointer moving over a scale calibrated in insole sizes (see Fig. 4, not shown). As seen in Fig. 7, a table 70 supporting the insole I has a flat central portion and downwardly sloping end portions. The right hand sloping portion facilitates the insertion of the insole, while the left hand portion ensures even application of the strip to the insole without gaps caused by upward bending of the insole due to strain in the strip. Holddown means (Fig. 3, not shown) operated by the treadle controlling the attaching operation, holds the insole in contact with the left hand portion of the table 70. Specifications 749,892 and 769,278 also are referred to.
Patent GB-248167-A (GB)
Title: Improvements in and relating to regulators for dynamo-electric machines
IPC: H02J7/32
Filed: 1925-02-17
Abstract: 248,167. Glaser, W. H., and Vandervell &. Co., Ltd., C. A. Feb. 17, 1925. Regulation, automatic.-A regulator of the interrupter type used in conjunction with dynamobattery systems and having series and shunt windings. has a resistance in shunt with the series winding which is of substantially less value than that of the winding, so that the number of turns of that winding may be increased without increasing its flux and that voltage variations due to change of load may be small. To enable the same regulator to be efficiently used with various types of batteries the resistance is made interchangeable as by being constructed as a plug-in device.
Patent GB-1347420-A (GB)
Title: Means for reversing the sense of an output of an amplifier
IPC: G05D23/19
Filed: 1973-01-29
Abstract: 1347420 Amplifiers BARBER-COLMAN CO 29 Jan 1973 [11 April 1972] 4423/73 Heading H3W An amplifying arrangement includes a switch whereby the sign of the output is independent of that of the input. In a heating or cooling system, a bridge network comprising heatsensitive resistor 13, Fig. 1, adjustable resistor 14 and fixed resistors 18, 19 connected in series pairs across a positive and negative supply, produce control voltages across points 15, 20 which are connected via resistors 22, 23 respectively to junction point 24. Point 24 constitutes the out-of-phase input to amplifier 30, negative feedback being applied to point 24 over resistor 35. The in-phase input terminal of amplifier 30 is connected to the moving contact 26 of a two-pole switch, the fixed contacts 27, 28 of which are connected to the input ends of resistors 22, 23 respectively: the switch is operated by means of a bimetallic strip 37 in contact with a pipe 39 through which heating or alternatively cooling fluid flows. In a modification the connections are reversed, the junction point 24<SP>1</SP> being connected to terminal 15, the moving switch contact 26<SP>1</SP>, via resistor 41<SP>1</SP> to terminal 20, and the other ends of the resistors 22<SP>1</SP>, 23<SP>1</SP> to fixed switch contacts 22<SP>1</SP>, 28<SP>1</SP> respectively and to amplifier input terminals 31, 32 respectively. In further modifications of these arrangements the feedback resistor is connected to the in-phase input of the amplifier, so as to give positive feedback.
Patent GB-1439340-A (GB)
Title: Suspension units
IPC: B60G7/00
Filed: 1973-01-29
Abstract: 1439340 Strut-type suspensions GIRLING Ltd 9 Jan 1974 [29 Jan 1973] 4476/73 Heading B7D In a vehicle suspension unit comprising a strut 3 having one end received in a cup-shaped part 2 of a stub axle 1, a stud 4 welded to the end of the strut and formed with a flat is secured by a nut 6 in a correspondingly shaped aperture in the part 2 so that the strut is located in a predetermined angular position relative to the stub axle, and the part 2 has a longitudinal slit 7 and is clamped around the strut 1 by a pinch bolt 8. The nut 4 is self locking or secured by a tab washer 5.
Patent GB-348532-A (GB)
Title: Improvements in submarine signalling cables
IPC: H01B7/14
Filed: 1930-02-10
Abstract: 348,532. Cables. SMITH, W. S., Benchams, Newton Poppleford, Devon, GARNETT, H. J., Lymne, Solefields, Sevenoaks, Kent, and SMITH, E. W., 11, Spenser Road, Harpenden, Hertfordshire. Feb. 10, 1930, No. 4494. Drawings to Specification. [Class 36.] In order to avoid losses in the teredo tape of a loaded submarine signalling cable, the teredo tape, which is wound over the guttapercha or other insulation, is insulated so as to prevent metal contact with sea-water and thus the passage of electric current from one turn to another of the tape. The teredo tape insulation may be of low order and preferably consists of a spirally wound tape of rubber, guttapercha or impregnated linen. The tape insulation may consist of a rubber film or cellulose or bituminous paint brushed, or extruded, on. The invention is stated to be applicable to twin-core cables, particularly those in which the teredo tapes of the separate cores would otherwise be in metallic contact.
Patent GB-708636-A (GB)
Title: Improvements in gas-filled electric discharge tubes
Inventor: BACK RAYMOND RICHARD
IPC: H01J17/44
Filed: 1951-02-23
Abstract: 708,636. Cold-cathode tubes. HIVAC, Ltd. Feb. 25, 1952 [Feb. 23, 1951], No. 4501/51. Class 39(1) The breakdown voltage of a cold-cathode gas-filled trigger tube is increased by arranging that the extremity of one of the main electrodes terminates slightly short of the end of a sleeve of insulating material which encloses the whole of the said electrode and intercepts the direct path between the enclosed electrode and any of the other electrodes. In the tube shown, the end of the wire anode 10 is located a short distance, of the order of 1 to 2 mm. from the end of the surrounding sleeve I which is made, for example, of glass. The trigger electrode comprises two wire rings 15 spaced apart by wires 17 and supported from the pinch 14 by wires 16. Alternatively a single wire ring trigger electrode may be used. The cathode 12 is a short metal cylinder supported by wires 13 and is preferably coated on its inner surface with material having a low work function. The tube is filled with a mixture of neon and argon.
Patent GB-800492-A (GB)
Title: Improvements in or relating to an instrument for, and method of, producing a graphic record of mineral deposits in a terrain under aerial geophysical survey
IPC: G01T1/36
Filed: 1955-02-16
Abstract: 800,492. Geographical prospecting by means of radio activity. LUNDBERG EXPLORATIONS, Ltd. Feb. 16, 1955 [March 18, 1954], No. 4670/55. Class 40 (3). A device for detecting the presence of mineral deposits such as ores, oil and gas by their radioactive emissions consists of a device 2 such as thallium-activated sodium or caesium iodide, anthracene and plastic or liquid scintillators scintillating in response to gamma rays, the scintillations being detected by a photo multiplier 3, and cathode follower 4 amplified at 5 and fed to a pulse height analyser 7. This analyser feeds an output to a rate meter 12 which may be as described in U.S.A. Specification 2,686,266 and which averages radiation intensity over an adjustable period and operates a tracer pen 13 inscribing a continuous line on a record tape. Outputs 9 to 11 feed scalers 14, 15, 16 respectively with pulses in selected amplitude ranges. The scalers divide the number of these pulses by two, four, eight and sixteen as required and operates pens 17, 18, 19 which mark the recording tape to indicate the presence of particular deposits giving rise to pulses of the related intensities.
Patent GB-1523062-A (GB)
Title: Friction materials containing a simple normal spinel or spinel solid solution
IPC: F16D69/02
Filed: 1976-02-06
Abstract: 1523062 Friction materials FERRO CORP 6 Feb 1976 [7 Feb 1975 9 Jan 1976] 4827/76 Heading C3R A friction material comprises a rigid thermosetting heat-resistant resin (R), reinforcing fibres, and a friction modifier (F) being a crystalline simple normal spinel or a crystalline mineral being an isomorphous substitutional solid solution consisting of atoms of metals and oxygen arranged as a mixed crystal in a normal spinel crystal lattice structure and corresponding to AnMO4 or AnM<1>2O4 where A is # 1 mono- or di-valent metal atom(s), M is #1 tritetra-, or hexavalent metal atom(s), there being #2 different metal atoms, these atoms being substituted in, and occupying sites in, the normal spinel lattice. A may be Na, K, Ag, Li, Mg, Fe, Co, Mn, Zn, Ni, Cu or Cd, and M may be Mo, W, Al, Fe, Cr, Mn, Ti, V, Nb, or Ta. There may be, e.g. 8-45% wt. (F). (F) may have average particle size 0À5-10 Ám. Also present may be fillers. (R) may be phenol/formaldehyde, melamine/formaldehyde, urea/formaldehyde, or an epoxy, diallyl phthalate, dioctyl phthalate, or cross-linked alkyl resin. Elastomers may also be included. Use.-Brake linings.
Patent GB-1135444-A (GB)
Title: Improvements in conduit assemblies assembled from several individual conduit members
IPC: F15B13/00
Filed: 1966-02-04
Abstract: 1,135,444. Valves; pipe joints. ROBERT BOSCH G.m.b.H. 4 Feb., 1966 [6 Feb., 1965], No. 4915/66. Headings F2G and F2V. Two or more conduit sections, each of which may include a plurality of fluid conveying bores 4, 5, 6, have their mating faces aligned by a dowel pin 17 and held together by an intermediate hollow member 18 in the conduit 5. The ends of the member 18 are provided with threads of opposite hand whilst an internal hexagonal surface enables the member to be rotated by a spanner inserted through the conduit 5. Compressible seals 12, 13, 14 are disposed in grooves in one mating surface, each seal corporating with a separate one of the conduits. The pin 17 may be replaced by a hollow sleeve in one of the conduits and the latter may be associated with elongated valve blocks or multiple valve banks.