baber/WOPTO huggingface dataset:
Patent GB-776231-A (GB)
Title: An improved reactive volt-ampere meter
IPC: G01R21/00
Filed: 1955-09-13
Abstract: 776,231. Supply meters. LANDIS & GYR, AKT.-GES. Sept. 13, 1955 [Oct. 2, 1954], No. 26189/55. Class 37. [Also in Group XIX] Apparatus for measuring reactive voltamperes comprises a vector summing device in which a slide 1 is moved parallel to itself in accordance with measured values of active power and a roller 19 is moved longitudinally on the slide in accordance with reactive power, the resultant movement of the slide and roller being transmitted to an independent shaft by a cord 34. During each measuring period the slide 1 is advanced to the right by lead screws 4, 5 driven from an active power meter 11 through differential gearing 9 while the roller 19 rises from a zero position immediately above a stationary roller 35 as a cord 23 is paid off a drum 24 driven from a reactive power meter 28 through differential gearing 26. As the cord 34 is drawn by the roller 19 over the roller 35 from a drum 36 against the action of a returnspring, gearing 37 drives an arm 38 and a pin 39 thereon advances a maximum demand pointer 40 if the previous maximum value is exceeded before the end of the period, when motors 16, 32 reset the slide 1 and roller 19 to zero position. By providing the planet wheel shafts 8, 25 with setting means that can be actuated by hand, the vector summing device can be used as a computing apparatus. The active and reactive power measurements may be stored during each period and fed to the vector summing device at the end of each period. Roller 19 may be driven by a lead screw and a flexible drive.
Patent GB-426121-A (GB)
Title: Improvements in or relating to vapour burners
IPC: F23D11/44
Filed: 1934-09-12
Abstract: 426,121. Vapour burners. MULLER, J., 123, Avenue de LutÞce, La Garenne, Colombes, Seine, France. Sept. 12, 1934, No. 26231. Convention date, Sept. 12, 1933. [Classes 75 (i) and 75 (iii)] A vapour burner 1 of known type is initially heated and maintained hot, ready for immediate reignition, when extinguished by a pilot burner consisting of a tube 7 formed at its sides with holes covered by asbestos or similar sheets 9 which are tightly clamped in position by metal plates 10 and bolts 11. The tube 7 may communicate either with a regulating valve on the supply pipe 3 leading to the burner 1 or with a source of more volatile fuel. The two burners are protected from draughts by a sheet metal casing 13.
Patent GB-788413-A (GB)
Title: A machine for producing a black paving coat
IPC: E01C19/42
Filed: 1955-09-14
Abstract: 788,413. Road paving machines. HEISE, C. H., [trading as ALFELDER EISENWERKE, . C. HEISE, KOMM-GES. VORM. O. WESSELMANN & CIE.]. Sept. 14, 1955 [Sept. 14, 1954], No. 26263/55. Class 107 A machine for spreading bituminous paving material on roads &c. comprises a series of adjoining boxes 9 attached to a pliant steel rail 2 and internally heated. The contour of the under surface formed by the boxes can be altered by manipulation of screwed rods 3 by handwheels, or by cams 6, in the latter case it being possible to gear the cams to the transmission of the machine so that the banking of corners can be effected automatically as the machine progresses. Gas fired heaters in the boxes provide the necessary heat.
Patent GB-757098-A (GB)
Title: Production of carbon black from aerosols
IPC: C09C1/52
Filed: 1953-09-24
Abstract: In the production of channel black, an aerosol of a liquid hydrocarbon in a carrier gas is fed to the flame.  The hydrocarbon may be first vaporized in the gas and then condensed therefrom in the form of fine droplets.  Nuclei for the droplets may be ensured by the addition of ammonium or sodium chloride to the vaporized hydrocarbon. Oils specified are distillategas oils, and heavy residual tars which are not more than 50 per cent vaporizable by ordinary distillation techniques under atmospheric conditions.  Carrier gases specified are hydrogen and methane. Particles of heavy residual tar may be up to 1 micron while those of light distillate oil may be up to 10 microns. The liquid particles may constitute up to 3 per cent of the aerosol.
Patent GB-1088060-A (GB)
Title: Improvements in or relating to automatic weighing scales
Inventor: ALLEN KENNETH CLEMENTS
IPC: G01G23/18
Filed: 1964-10-14
Abstract: 1,088,060. Digital weighing apparatus. HOBART MANUFACTURING CO. Oct. 14, 1964, No. 26364/67. Divided out of 1,088,058. Heading G4H. In a weighing machine of the kind in which a coded scale is displaced by the load to be weighed, there are means giving a signal when the mechanism has come to rest to effect readout of the photocells sensing the coded scale. The description is the same as that of the Specification 1,088,058.
Patent GB-903581-A (GB)
Title: Improvements in or relating to apparatus forming part of carrier-wave communication systems
Inventor: ROBINSON ALAN SEYMOUR
IPC: H04J1/06
Filed: 1959-07-31
Abstract: 903,581. Converting. GENERAL ELECTRIC CO. Ltd. July 26, 1960 [July 31, 1959], No. 26378/59. Class 38 (2). [Also in Groups XXXIX and XL (c)] In apparatus forming part of a carrier wave communication system, direct current is applied to an inverter 3 to provide an output signal which contains a frequency stabilized fundamental and harmonics thereof, and the fundamental is fed through a low-pass filter 6, then rectified and smoothed to provide a direct current supply having a voltage different from the input whilst at least some of the harmonics are fed through a high-pass filter 7 and then to one or more further filters 16, 17, 18, this further filter being arranged to pass one, or each of these further filters being arranged to pass a different one, of the harmonic frequencies. The inverter may comprise two power transistors operating in the common-collector push-pull mode, the emitter electrodes of the transistors being connected to the two ends respectively of a centre tapped primary winding of a transformer. The output of the inverter 3 is derived from a secondary winding of the transformer. The inverter 3 would be free-running in the absence of a timing signal with an operating frequency slightly less than the frequency of the fundamental. It is operated by injecting positive pulses of repetition frequency twice the fundamental frequency into the base circuits of the transistors. The positive pulses are derived from a crystal controlled oscillator 19, the output of which is squared, differentiated and clipped. Alternatively, the inverter 3 is a transistor or thermionic valve amplifier operating under Class B conditions and is fed by oscillator 19 producing a sinusoidal output signal to drive the amplifier into saturation. The stability of the apparatus is improved by a regulating feedback path (not shown) between the inverter 3 and output terminal 20.
Patent GB-264007-A (GB)
Abstract: 264,007. Peters & Co., Ltd., G. D., and Chattaway, H. A. Dec. 18, 1925. Ventilators. -A ventilator for vehicles &c. consists of a casing 1 open at its front and rear ends, and divided into an upper or outer chamber 8 and a lower or inner chamber 9 by partition plates 7, 10, which are so arranged that each of the said chambers 8, 9 terminates at its rear end, adjacent to the rear of the casing in a restricted opening 12, 13 for the outlet of air from the chambers. The inner side or bottom of the casing is provided with an opening 3 communicating with the bottom of the vehicle. The plate 10 does not extend to the base of the casing, and a plate 11, extending upwardly a short distance from the base 2 is spaced from the plate 10 to provide a channel 15, into which moisture entering the casing may drain. The casing is provided with flanges whereby it may be attached to the vehicle. In the modification shown in Figs. 4 and 7, the rear part of the casing is cut away at 10<a>, and the plate 11<a> extends upwardly to form, with the partition plate 7, the restricted opening 13. The water-receiving channel 15 is formed between the plates 10<a>, 11<a>, and openings 16 are provided in the side plate. The flanges 17 serve to direct air into the openings 16 to augment the ejector action of the apparatus.
Patent GB-1419869-A (GB)
Title: Tunnelling apparatus
IPC: E21D9/12
Filed: 1973-06-04
Abstract: 1419869 Tunnelling WAYSS & FREYTAG AG 4 June 1973 [3 June 1972] 26476/73 Heading E1F Tunnelling apparatus comprises a cutter 2, a casing 1 surrounding the cutter, first and second bulkheads 18, 6 defining with the casing first and second chambers, the first bulkhead 18 having an opening 19 remote from its top, means 11 for supplying liquid to the second chamber and thus to the first chamber through the opening 19, a duct 16 for applying superatmospheric air to an upper surface 8 of the liquid in the second chamber, and means 20, 22, 14 for removing debris from the face of the tunnel. The debris is deflected by deflectors 20 on the cutter into the path of drag buckets 22 which elevate the debris and discharge it into a shaking shoot 14 leading through a lock 15 to a conveyer 10. Fine particles of debris are removed hydraulically by means of pumps through an exit pipe 12. The liquid includes a thixotropic sealing medium such as bentonite, and the liquid supply is controlled by a float-controlled pump (not shown). In an alternative embodiment, Fig. 2 (not shown), the first bulkhead (23) rotates with the cutter and has the drag buckets (29) mounted thereon. The first bulkhead (23) has, in this embodiment its opening (28) centrally located, debris being deflected through the opening by a frusto-conical surface (27) on the rotary shaft (3) of the cutter.
Patent GB-1462576-A (GB)
Title: Micro-image reader
IPC: G03B21/11
Filed: 1975-06-23
Abstract: 1462576 Microfilm readers NCR CORP 23 June 1975 [18 July 1974] 26526/75 Heading G2J A microfilm reader has first guide means movable to an operative position in which it allows the microfilm carrier to move only in the X-direction and second guide means movable to an operative position in which it allows the microfilm carrier to move only in the Y-direction. The user can thereby run down a selected row or column of images with ease. As shown, the microfilm carrier 36 (Fig. 8) has rows and columns of projections 37 and the guide means comprise channel shaped members 44, 46, 60 each pivotable about one edge 52, 53, 64 to move the other edge 54, 55, 66 through a respective slot 58, 59, 70 to engage the carrier 36. A cam rod 75 moves channel members 44, 46, 60 and is operated by handles 92, 94 via a wire 114. Handle 94 rotates rod 75 in one direction to cam edges 54, 55 out of the slots 58, 59 and to cam edge 66 through slot 70 and into position between columns of projections 37 to restrict movement of carrier 36 to the Y-direction. Handle 92 rotates rod 75 in the opposite direction to retract edge 66 and cause edges 54, 55 to move into position between rows of projections 37 and restrict movement to the X- direction. In Figs. 9 to 14 (not shown) the guide means are operable independently, so that for instance, the guide means can all be moved simultaneously to the operative position to lock the position of the carrier 36.
Patent GB-302438-A (GB)
Title: Improvements in or relating to sockets for casters or caster substitutes
IPC: B60B33/00
Filed: 1927-10-07
Abstract: 302,438. Wade, H., (Bassick Co.). Oct. 7, 1927. Castors.-A bearing plate 22, originally domed, is flattened by pressure in the upper end of a tubular castor socket 10 and is thereby held in place. A slight depression may be formed in the plate to receive a ball 32 swaged in the end of the pintle 28. The latter is retained bv a spring ring 21, preferably bevelled in section to facilitate entry of the pintle, and the bearing plate can be formed from the disc of metal punched from the interior of the ring. Specification 287,357 is referred to.
Patent GB-1138316-A (GB)
Title: Improvements in film manufacture
IPC: G11B5/733
Filed: 1966-06-15
Abstract: 1,138,316. Films. FIBER INDUSTRIES Inc. 15 June, 1966 [29 June, 1965], No. 26688/66. Heading B5B. [Also in Division C3 and H1] A thermoplastic film suitable for use as the substrate for a magnetic recording medium, contains particles of an inert inorganic substance insoluble in aqueous or organic liquids and melts, the particles having diameters within the range of 5 to 200 millimicrons and being so uniformly dispersed throughout the film that the surface protrusions they cause are no higher than approximately 100 millimicrons. The preferred film-forming material is polyethylene terephthalate, but the film forming material may be a linear polyester in general, a polyamide, e.g. nylon 66 or nylon 6, a polyolefin, e.g. polypropylene, or a vinyl polymer. The particles preferably consist of silica, but aluminosilicates, e.g. kaolin or diatomaceous earth, may also be used as may carbon black. Preferably, the film contains from 0À01 to 0À5% of its weight of the particles, which preferably have diameters of from 5 to 50 millimicrons. In preferred methods of making the film, (a) the particles are dispersed with the aid of ultrasonic vibrations in the melt from which the film is to be made; (b) the particles are dispersed with the aid of ultrasonic vibrations in a liquid monomer from which the film-forming material is to be made. An example of method (b) is given illustrating the production of polyethylene terephthalate containing silica particles. In the example, the polymer so made is cast into ribbon which is cut into irregular strips and dried to reduce the moisture content below 0À02%. The dried polymer is melted and extruded in a thickness of 0À015 inch on a polished revolving drum, and the film obtained is then subjected successively to a forward stretching of 3À2 times its original length and then to a lateral stretching 2À8 times its original length. The resulting film, 0À0015 inch in thickness, is heat set at 225‹C. for approximately 30 seconds, cooled below 100‹ C. and wound on a mandrel. The finished film has a coefficient of friction of from 0À5 to 0À7, and the protrusions on its surface all project between 2 and 10 millimicrons above the film surface. The film is transparent and may be used in the production of magnetic tape by coating with a suitable composition containing magnetic ferric oxide. The coefficient of friction of such tape is low enough to avoid serious interfacial tension, i.e. blocking, and hence the tendency of superimposed layers of the film to adhere tenaciously as a result of the generation of electrostatic charges is minimized.
Patent GB-1154658-A (GB)
Title: Mechanism for Cutting a Moving Web of Sheet Material.
Inventor: BALLARD REGINALD LEONARD
IPC: B65H20/24
Filed: 1967-06-09
Abstract: 1,154,658. Cutting webs. PHILLIPS ENG. Ltd. 27 May, 1968 [9 June, 1967],No. 26739/67. Heading B4B. [Also in Division B8] Mechanism for cutting a moving web 14 of sheet material at intervals and in directions transverse to the web in order to form a plurality of separate sheets comprises fixed and movable blades 10, 11, driven rollers 12, 13, a movable carriage 15 having a freely rotatable guide roller 18 and below which is a further freely rotatable roller 19, suction means associated with each of the rollers 12, 13 for holding sheet material on to the peripheries thereof, and a pivoted lever 20 and a cam 21 for actuating the blade 11, the arrangement being such that cutting is effected at a time when the web passing from the roller 12 to the roller 13 and between the blades 10, 11 is temporarily arrested by the carriage moving in a direction which will cause a loop to be formed in the material before it reaches the roller 12, the drive between the roller 12 and the web and/or the drive between the roller 12 and driving means to which it is connected being such as to permit slip between the roller 12 and the web whilst the latter is arrested. The carriage 15 is mounted on a guide 16 and one end of the carriage is connected to a variable throw crank 17. The suction means associated with the roller 12 comprises a suction chamber 24 connecting with axially extending grooves 25 in the roller. A plurality of stripper fingers 26 extend into the grooves 25. The suction means associated with the roller 13 comprises a suction chamber 28 connecting with circumferentially spaced axially extending holes 29 in the roller. Stationary stripping means 30 strip the sheets from the roller 13.
Patent GB-404095-A (GB)
Title: Improvements in axle bearings and in the method of lubricating the same
IPC: B61F17/18
Filed: 1932-09-27
Abstract: 404,095. Lubricating axle-bearings. ALBECK, A. F., 17, Pfannenstiel, Augsburg, Germany. Sept. 27, 1932, No. 26826. [Class 12 (iii).] In an axle-box in which the axle 1 has a flange or collar 13 upon it dipping into an oil well in the box, and a lateral duct or ducts 24 are provided near the rim of the collar, the axle bearing 5 is formed so that there is clearance between the journal 1 and the oil well for the purpose of allowing oil raised by the collar to flood or curl over into the duct 24, whence it passes to the journal. The oil-lifter 13 may be a flat disc, or dished, or coned. Spaced parallel plates 25 supported by springs 26 extend downwardly into close proximity with the under side of the journal. The plates are closed at their ends and may be surmounted by further plates to form more gaps or ducts. Oil overflowing from the ducts or galleries 24 flows through these gaps, aided by the suction produced by the rotation of the journal. Oil thrown clear of the galleries 24 into the upper part of the box descends by way of ribs and channels 28 on the box to the bearing 5, and thence to the journal. Fig. 4 shows a form having an oil-lifter with three flanges 13, 14, 15, one or two of which dip into the oil well. These flanges may be made in sections or in one piece and may be convex or conical with different degrees of conicity. Any or all of them may be provided with ribs or may be roughened. A collar 16 on the axle and a felt disk 17 entering a recess in the back of the box prevent the entrance of foreign matter. Oil drips from ribs 21 on the top of the box back to the flanges 13, 14, 15. This form is provided with single resilient bars or plates 25 instead of spaced parallel plates. These are supported by springs 26 as before and may be hinged to the galleries 24. The end of the box has two downwardly and inwardly inclined surfaces produced by annular ribs 22, 23, which lead lubricant back to the oil well. In both forms, the galleries 24 are arranged to slope downwardly from the end of the box containing the oil-lifter.
Patent GB-333415-A (GB)
Title: Improvements in machines for drawing threads in fabrics
IPC: H04B15/00
Filed: 1929-09-04
Abstract: 333,415. Singer Manufacturing Co., Ltd., Corrall, H., and Heggie, J. Sept. 4, 1929. Open-work effects, producing.-In a thread. drawing machine having a presser bar 10 and a piercer bar 25 above the throat plate 16 and a rotary thread cutter 23 and a work feeder 26 below the throat plate, the presser foot 1 is an open frame pivoted to the bar 10 and has fixed to it near each longitudinal side one limb 12 of a U-shaped spring the other limb 13 of which projects through the presser plate 1 into a slot 15 in the throat plate and serves as a fabric depressing member. The upper cutter consists of s blade spring 19 anchored at one end 20 to the top of the throat plate 16 the other end being overhung by one edge of the hole in the throat plate. Specification,258,425 is referred to.
Patent GB-1269718-A (GB)
Title: Method of manufacturing evaporators or condensers for refrigeration apparatus
IPC: F16L13/08
Filed: 1969-05-28
Abstract: 1,269,718. Soldering. EMHART CORP. 28 May, 1969 [14 June, 1968], No. 26908/69. Heading B3R. [Also in Division F2] In an evaporator or condenser for refrigeration apparatus, a main heat exchange tube 18 of aluminium is expanded to form a socket 36 having an internal diameter equal to the internal diameter of the remainder of the tube, the socket being telescoped over the end of a U-bend 30 and a ring of aluminium solder being applied to the flared end 42 of the tube; a flux such as zinc chloride is applied to the surfaces to be joined. Heat, e.g. radiant electrical resistance, torch or preferably induction heating is applied to cause the solder to run between the tubes and water at a temperature of at least 190‹F. or a 5% ammonia solution is passed through the tubes to remove any flux residue. The mill stock finish of the tubes is retained.
Patent GB-1061625-A (GB)
Title: Method of,and means for,decreasing the forward voltage drop on a rectifier device
IPC: H01L29/00
Filed: 1964-06-30
Abstract: 1,061,625. Decreasing the forward voltage drop in a rectifier. ALLMANNA SVENSKA ELEKTRISKA A.B. June 30, 1964 [July 1. 1963], No. 26923/64. Heading H1K. The forward voltage drop is decreased in a rectifying semi-conductor body such as a rectifier diode or a thyristor, having a middle zone of low conductivity and end zones of mutually opposite but high conductivity types by directly subjecting the middle zone to a beam of photons during the forward period of the body thus generating hole-electron pairs in the middle zone which raise the conductivity thereof. In Fig. 6, a series of light-emitting diodes 5 are arranged to shine on to the middle zones 11 and 12 of an emitter-controlled thyristor 10. In modifications (Figs. 1 to 4, not shown), only one light-emitting diode may be used whilst the emitter-controlled thyristor may be replaced by a photo-controlled thyristor or a rectifier diode having a low-conductivity middle zone. In another modification (Fig. 7, not shown) the light-emitter diodes may be arranged in the same plane as the rectifier and a prism used to reflect the light on to the rectifier. In Fig. 10 an annular emitter-controlled thyristor 35 having a gate electrode 42 is held in metal base 30 but insulated therefrom by a heat-conducting layer of beryllium oxide 29. A metal piece 28 joins the thyristor to the light-emitting diodes 5 which have an electrical connection at 32. Light emitted from the diodes 5 is reflected on to the thyristor middle zones 39 and 40 by a prism 41. A modification (Fig. 9, not shown) has the thyristor replaced by a rectifier having a low-conductivity centre zone and uses only one emitter diode and a curved reflector. In another embodiment (Figs. 11 and 12, not shown) a series of parallelepipedic rectifier bodies are arranged side by side with like conductivity zones adjacent, but separated from each other by intermediate conducting layers to the ends of which are connected the light-emitting diodes perpendicularly to the longitudinal axes of the rectifier bodies. The light is reflected on to the rectifier bodies whilst the whole arrangement lies on a beryllium oxide layer and a cooling plate of molybdenum or copper which may be water cooled. The rectifying bodies may be of Si or Gre doped with B and P, whilst the light-emitting diodes may be GaAs doped with Te and Zn or have an additional layer of doped ZnSe. GaAsP, GaSb, GaP and InP diodes are also said to be suitable. The semi-conductor bodies may also be cooled by Peltier effect.
Patent GB-1388870-A (GB)
Title: Motor vehicle disc brake
IPC: F16D55/00
Filed: 1972-06-09
Abstract: 1388870 Brake shoes; disc brakes FORD MOTOR CO Ltd 9 June 1972 [2 July 1971] 26971/72 Heading F2E The description in this Specification is identical with that of Specification 1,388,869, but the claims relate to the form and mounting of the anti-rattle spring on the disc assembly rather than to the form and mounting of the inboard brake and shoe assembly.