baber/WOPTO huggingface dataset:
Patent GB-172646-A (GB)
Title: An improved box or container applicable for use with repairing outfit for pneumatic tyres or the like
IPC: B29C73/08
Filed: 1921-12-09
Abstract: 172,646. MacReynolds, A. Dec. 13, 1920, [Convention date]. Boxes combined with rasps.- The lid, sides, or bottom, or as shown all the parts, of a box for holding a pneumatic tyre &c. repairing outfit, are punched or perforated to afford externally a rasp-like surface so that the box can be employed for roughening the india-rubber surfaces to be treated.
Patent GB-1452822-A (GB)
Title: Clutch and brake operating system
IPC: F16D23/12
Filed: 1973-07-12
Abstract: 1452822 Brake operating systems DAVID BROWN TRACTORS Ltd 1 July 1974 [12 July 1973 7 Aug 1973] 33259/73 and 37350/73 Heading F2E [Also in Division B7] A clutch brake operating system for an agricultural tractor comprises three levers 12, 13, 14 each carrying a foot pedal 15, 16, 17, the lever 12 being arranged to operate the near-side brake, the lever 14 being arranged to operate the offside brake, and the lever 13 constituting a master lever carrying a pivotally mounted cross-bar 26 arranged to operate both levers 12, 14 with an equalizing action when the master lever 13 is operated, and further comprises a clutch operating lever 34. As shown, the lever 12 is rigidly secured to a shaft 10 by a pin 18 and has a pair of lugs 11 connected to the near-side brake-the shaft 10 is pivotable about its axis by lever 12 to apply the near-side brake. The other two levers 13, 14 are pivotable about shaft 10, the lever 14 having a pair of lugs 20 connected to the off-side brake. All three levers 12, 13, 14 have portions 21, 22, 23 which extend on the opposite side of the shaft 10 to the pedals 15, 16, 17. The portion 22 is connected to a hand brake linkage 24, and carries a pivot-pin 25 for the lever 26 whose ends extend below portions 21, 23. Each end of the cross-bar 26 has a screw-threaded hole in which a threaded stud 27 is adjustably secured by a lock nut 28, the heads 29 of studs 27 providing points of contact between the cross-bar 26 and the portions 21, 23. The clutch-operating lever 34 carrying a pedal 35 has a bore 36 enabling it to be pivotally mounted on a sleeve 30 coaxially surrounding the shaft 10. The lever 34 is prevented from moving from a boss 32 by an internal circlip 37. In a modification the levers 12, 13, 14 do not have portions which extend on the opposite side of the shaft 10 to the pedals, the pivot pin 25 being disposed between shaft 10 and pedal 16 and the ends of the cross-bar 26 extending above adjacent parts of levers 12, 14.
Patent GB-841207-A (GB)
Title: Improvements in filters or sifting elements
IPC: B01D29/46
Filed: 1956-11-01
Abstract: 841,207. Sifting apparatus. MULLER, J. Nov. 1, 1956 [Jan. 18, 1956], No. 33368/56. Class 117 [Also in Group I] A sifting element comprises assembled annular discs or frame-like strips having grooved faces in facial contact, the grooves 2 being arranged at a common inclination to the centre and running from the inner towards the outer edge. The inclination of the grooves on opposite faces of the discs 1 is of the same hand so that when the discs are assembled the grooves of one disc cross the grooves on the adjacent disc. The grooves are arranged tangentially to an imaginary circle 4 in the disc and concentric with it and they increase in depth in the direction of liquid flow: they may be curved and may be constructed for inward or outward flow. Fig. 14 shows a candle made up from the discs. A flanged support member mounts it on a partition in a sifting device and supports a pile of annular discs 23 surrounding a perforated tube 13 secured to the support 10 and carrying a fixed nut 22 into which screws a rod 16 pressing on to an upper cup 14 through a spring 21 to clamp the pile of discs to the support 10.
Patent GB-208367-A (GB)
Title: Improvements in safety suspension gear for pit cages, hoists, and the like
IPC: B66B5/26
Filed: 1922-12-07
Abstract: 208,367. Morris, T. Dec. 7, 1922. Catch gear of mine-cage type.-A pair of oppositely sliding bolts 13 mounted on the top of the cage and having a flexible connection 17 with the hoisting rope 19 is connected to a similar pair of bolts 24 mounted on the bottom of the cage by links 27, 30 and vertical shafts 25. A pair of blade springs 10 forces the bolts 13 into slots 3 when the hoisting rope breaks, and the movement of the bolts 13 causes a similar movement of the bolts 24.
Patent GB-660780-A (GB)
Title: Improvements in or relating to chucks for lathes, milling machines, grinding machines and the like
IPC: B23B31/00
Filed: 1949-12-30
Abstract: 660,780. Chucks; face-plates. BODMER, G. Dec. 30, 1949, No. 33446/49. Class 83 (iii). The radially - adjustable jaws of a chuck are provided on the side faces thereof with radial guide-teeth 4 which engage similar teeth provided on a face-plate 1. The flanks of each tooth may be of equal or unequal length or the teeth may be trapeziumshaped. Each jaw comprises a portion 2 carrying the teeth and a clamping portion 3. The portion 2 is provided with regulating slits 5, 6 which are tensioned, e.g. by means of screws 7 or wedges. Alternatively, the slits are provided in the face-plate. The jaws may be driven independently, e.g. by a worm and wormwheel gearing for each jaw or simultaneously, e.g. by means of a scroll-plate engaging suitablyarranged teeth on all the jaws.
Patent GB-1356090-A (GB)
Title: Digital system for band width reduction of video signals
IPC: G01S7/00
Filed: 1972-07-18
Abstract: 1356090 Pulse radar NORTHROP CORP 18 July 1972 [4 Aug 1971] 33542/72 Heading H4D To reduce the bandwidth of video signals (e.g a pulse radar echo signal) for transmission to another point, the video signal is digitized, the digitized signal is converted from serial to parallel form, preselected groups of the parallel digital signals are delayed digitally by different predetermined amounts, and the delayed signals and a group of non-delayed signals directly from the serial-parallel conversion are placed in serial form distributed over a time cycle which is substantially longer than the duty cycle of the video signals (e.g. time cycle = 4 x duty cycle). The digital delay means may comprise two delay lines or a shift register, the serial-to-parallel converter may be a shift register and the analogue-to-digital converter may be a delta modulator.
Patent GB-642335-A (GB)
Title: Improvements in and relating to a method facilitating chemical processes by means ofelectrical discharges
IPC: C01B17/74
Filed: 1946-11-12
Abstract: 642,335. Treating gases with discharges. NYROP, J. E. Nov. 12, 1946, No. 33573. Convention date, Oct. 18, 1945. [Class 39 (i)] In a method of facilitating chemical reactions between substances placed or passed between electrodes, intermittent current is applied to co-operating electrodes at least one of which is rotated, the rotation being at a velocity relative to the other electrode, which ensures the dividing of the discharge into a multitude of small sparks, thereby preventing the discharges from building up arcs. One electrode may be a stationary plane electrode and placed tangentially to the other circular, rotating electrode, or a rotating electrode may be fitted concentrically within a ring-shaped electrode. The intermittent current may be produced by direct current pulses or by short continuous or damped high-frequency impulses. The discharges may be of a duration of less than 10<SP>-3</SP> sec., preferably less than 10<SP>-4</SP> sec. Small solid and/or liquid particles may be introduced into the discharge zone. They may be catalytically active, for example suitable for destroying active nitrogen which may destroy nitric oxide, or able to emit large quantities of electrons, for example barium oxide. The electrodes may also comprise material able to emit large quantities of electrons. The method may be applied, for example in the production of nitric oxides and thereby nitric acid, in the cracking of organic gases, in the production of acetylene, or in the oxidation of sulphurous acid. The Specification as open to inspection under Sect. 91 comprises also arrangements in which the discharge is divided up into sparks by means of movable electrodes not necessarily relative to one another, electric or magnetic fields, or by means of an air current. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1223022-A (GB)
Title: Absorption of waste gases containing hydrogen fluoride and/or silicon tetrafluoride
Inventor: KOLLING WOLFGANG
IPC: B01D53/68
Filed: 1968-07-15
Abstract: 1,223,022. Hydrogen fluoride; hexafluorosilicic acid. CHEMIEWERK COSWIG VEB. 15 July, 1968, No. 33597/68. Heading C1A. [Also in Division B1] In a process for the absorption of waste gases containing hydrogen fluoride and/or silicon tetrafluoride in water or an aqueous solution of hexafluorosilicic acid, the absorption takes place in a stable bubble layer formed on slotted plates B arranged in a column A. The ratio between the breadth of a slot and the breadth of the portion of the plate between two slots is between 1À0: 0À5 and 1À0: 1À6. The ratio is preferably 1.0: 1.0. In the apparatus shown there is countercurrent contact between the liquid absorbent and the gas to be absorbed. Aqueous hexafluoro-silicic acid is withdrawn at 6.
Patent GB-520562-A (GB)
Title: Improvements relating to the regeneration of paper pulp
IPC: D21C5/02
Filed: 1938-11-18
Abstract: 520,562. De-inking printed paper. BERTRAND, M. F. Nov. 18, 1938, No. 33599. [Class 96] [Also in Group IV] Printed paper is treated to separate ink and obtain a clean pulp by macerating the paper in soap solution preferably below 175‹F. and after dilution of the pulp submitting it. to a flotation treatment, - preferably below 100‹C., the soap and oil from the ink being relied upon as flotation agents. Slow. aeration and removal of froth is continued until uncoloured froth is obtained.
Patent GB-366922-A (GB)
Title: Improvements in apparatus for cooling and screening granular substances
IPC: A23N17/00
Filed: 1930-11-08
Abstract: 366,922. Sifting and cooling apparatus. DRYDEN, W., Grimshaw Street Foundry, Preston. Nov. 8, 1930, No. 33617. [Class 117.] Apparatus for screening and cooling granular substances such as poultry and cattle foods in the form of small nuts of compressed feeding meal, consists of a rotating annular chamber formed by an inner solid or sectional cylinder D, Fig. 1, and an outer perforate cylinder made in sections C<1>, C<2>, C<3> of different mesh, an enclosing casing R, carrying collecting hoppers S<1>, S<2>, S<3>, and an inlet T<2> and outlet T<1> for the passage through the annular space of an induced or forced draught of air. The rotating cylindrical structure makes sliding joints with end closure plates H and rings r<4> on the casing, so that the air is caused to circulate through the annular space preferably in a direction opposite to the passage of the material. The interior of the solid cylinder may be cooled by expanding air. The sections of the perforated cylinder are preferably formed in two semi-cylindrical segments, secured by clamping rings p<1> around rabbeted portions of rings F, F<1> carried by the driving shaft B. The inner imperforate cylindrical sections are also fitted on rabbeted flanges f<7> of the supporting rings and secured by countersunk screws. The material passing through the annular space is agitated and conveyed by blades G, K formed in sections and secured to the carrier rings F, F<1> so as to form a helix of coarse pitch.
Patent GB-484894-A (GB)
Title: Improvements in apparatus for utilising the reserve fuel in motor vehicles
IPC: B60K15/06
Filed: 1937-12-06
Abstract: 484,894. Fuel tanks of motor vehicles. RAIMANN, A. Dec. 6, 1937, No. 33708. Convention date, Dec. 12, 1936. [Class 21] An apparatus for utilizing the reserve fuel in the fuel tank of a land, air or water motor vehicle of the type comprising two pipes 2, 4 which draw the fuel from different levels and transmit to an outflow pipe 3, is provided with channels 5, 6, 7 which connect the pipes 2, 4, a spring valve 9 being kept open by an electromagnet 10 until the fuel level reaches that shown, when the supply normally stops, but is re-established by de-energization of the electromagnet which permits valve 9 to close. The electromagnet is actuated from e.g. the driver's seat by a cable 11.
Patent GB-303997-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N1/08
Filed: 1927-12-14
Abstract: 303,997. Rover Co., Ltd., and Poppe, E. Dec. 14, 1927. Exhaust silencers. - In silencere comprising a closed casing a, which is divided interiorlv into a number of contiguous chambers in series communication with each other by means of a plurality of transverse and alter. nately reversed baffles c each of double curvature and with one free edge, the baffles are shaped and arranged so that adjacent concave portions c<3> of adjacent baffles form a channel or compartment of approximately circular crosssection having a perimeter exceeding that of a semicircle. The baffles may be secured to the casing by spot welding and by one or more lugs c<2>. The casing is made in halves, and alternate baffles are secured to each half, so that when the halves are assembled the baffles occupy the positions shown. The baffles may be formed from a continuous corrugated strip with apertures formed therein. The ends of the casing are closed by caps b with inlet and outlet orifices b<1>, b<2> respectively. The casing may be covered with a sleeve or coating of lead or other sounddeadening material.
Patent GB-1278803-A (GB)
Title: Oxide deposition utilizing multiple torches
Inventor: WALKER JACK
IPC: C04B35/14
Filed: 1969-07-04
Abstract: 1278803 Oxide coating TEXAS INSTRUMENTS Inc 4 July 1969 [11 July 1968] 33854/69 Headings C1A and C1N The oxide of a metal is deposited on a surface by vapour phase hydrolysis of a volatile metal compound, a plurality of streams of the compound being applied to the surface simultaneously. Each stream of the volatile compound has a stream of combustible gas therearound, the streams of volatile compound and combustible gas being mixed to form a flame at a zone of interaction spaced from the origin of said streams. Figs. 1 and 2 show an arrangement for depositing silica on a mandrel 10 of graphite to form a silica crucible. Two torches 24 and 26, displaced at an angle in the range 60 to 120 degrees, direct their flames 27 and 28 on to the mandrel so that the flames overlap at zone 31. The mandrel is continuously rotated by motor 18 and is moved longitudinally by rotation of the threaded portion 14 of shaft 12 in a threaded collar 16. Each torch may be constructed as described in Specification 1272143. In order to increase the strength of the crucible deposited on the mandrel, a glazing torch may also be provided to heat and slightly sinter the deposited silica (Fig. 5, not shown). The volatile metal compounds which can be used may be the volatile anhydrous chlorides of metals of Groups III and IV of the Periodic System, including silicon. Specification 1,278,802 is referred to.
Patent GB-411133-A (GB)
Title: Improvements in and relating to the casting of bodies of metal having cored holes of uniform cross-section throughout their lengths
IPC: B22D7/04
Filed: 1932-11-30
Abstract: 411,133. Casting - machines. HOLROYD & CO., Ltd., J., and MEEK, C., Harbour Lane, Milnrow, near Rochdale. Nov. 30, 1932, No. 33861. [Class 83 (i).] Casting processes; castings, extracting ; moulds ; cores.-A body having a hole of uniform crosssection is made by pouring molten metal into a mould while it is moved relative to a core therein to withdraw the core progressively as the metal sets. A metal mould 24, 29 may be rotated by a motor 4 gearing 5 and a selfcentring chuck 9. A metal core 23 is guided by a sleeve 31 engaging a reduced extension 32 and is withdrawn by a variable-speed and reversing motor 17 and screw and nut gearing 11. The core may be held against rotation, allowed to rotate, or rotated positively by a variable-speed motor 22. Phosphor-bronze or other metal is poured into a pot 27, supported on a steady 25, which delivers it at a uniform rate to the mould. This has an enlarged part 124 which keys the casting to it. In a modification the mould does not rotate but may be vibrated to assist escape of gas. The cooling of the casting may be regulated by selecting the requisite mould thickness or by applying heating or cooling medium or both to the mould or core or both. The Provisional Specification states that the core if not cylindrical should be rotated more rapidly than the mould and that it may be made of carbon or silicon carbide.
Patent GB-1367738-A (GB)
Title: Process for the production of polyvinylidene fluoride resin film
IPC: B29C48/08
Filed: 1972-07-19
Abstract: 1367738 Pyroelectric detectors; capacitors; electrets KUREHA KAGAKU KOGYO KK 19 July 1972 [20 July 1971 21 July 1971] 33861/72 Headings H1K and H1M [Also in Division B5] Vinylidene fluoride polymer or copolymer film having a high ratio of #-type to α-type crystal structure is manufactured by stretching extruded film in the direction at least 5 degrees, preferably 90 degrees, to the direction of winding up after extrusion and is used as a capacitor dielectric or formed into an electret. The unstretched film must have a birefringent index of at least 1À5 x 10<SP>-3</SP> Electrets formed by subjecting the film to 50 to 2000 KV/cm. D.C. at 40 to 150 C. are stated to show better piezo- and pyroelectric properties compared to those made from film stretched in the winding direction, and are used in electro-acoustic energy conversion units or in thermosensitive elements.
Patent GB-383084-A (GB)
Title: Improvements in rulers
IPC: B43L7/00
Filed: 1931-12-07
Abstract: 383,084. Rulers. NEVILLE,B.M. 42, Constantine Road, London. Dec. 7,1931, No. 33882. [Class 97 (iii).] A ruler, for use in drawing straightline graphs through plotted points approximately conforming to a linear function or for laying off tangents, comprises a strip 1 of transparent material, e.g. celluloid, having a straight line 2 marked along the centre thereof, holes or slots 3.. 7 being formed in the strip at two or more points along the length of the line to allow a pencil point to project therethrough. To facilitate drawing tangents to curves, two or more graduated transverse straight lines 8 .. 13 perpendicularly bisected by the central line 2 are engraved on the ruler.
Patent GB-837215-A (GB)
Title: Folding machine for flat articles
Inventor: KELLETT HARRY
IPC: D06F89/00
Filed: 1956-11-07
Abstract: 837,215. Folding sheets &c. BRITISH LAUNDRY MACHINERY CO. Ltd. Nov. 7, 1956, No. 34066/56. Class 42 (2). A machine for folding sheets, towels, pillowcases and the like with the ironed side outwards comprises a roll 6 from which the work passes substantially vertically, a blade 10 reciprocable towards and away from the roll, means for moving the blade away from the roll after a predetermined length of the work has engaged the blade surface remote from the roll so that a loop is formed between the blade and the roll, and means for moving the blade towards the roll after the loop has reached a predetermined length to feed the work between the roll 6 and a co-operating roll 14. Stainless-steel fingers 15 and a plate 16 faced with synthetic resin feed the work to a conveyer 17 comprising a set of endless ribbons which co-operate with spring fingers 19 to deliver to a table 18. Similar conveyers 1, 2, 3 driven by a chain 41 from a motor driving the conveyer 17 feed the work to the roll 6 from an ironer. The arm 10 is of stainless steel, connected for angular adjustment to an arm 101 and oscillated about a shaft 20 by a spring-pressed lever 24 and a cam 27 controlled by timing mechanism operated by the passage of the work through the machine. When the blade 10 moves away from the roll 6, the work is gripped between a projecting portion 12 of the blade and a roll 11 mounted on a pivoted arm 31. A similar roll 45 bears against resilient members 7, 8 which apply a frictional drag to the work. The roller 14 has a number of axially spaced rubber rings aligned with the ribbons of the conveyer 3 which pass over crowned portions on the roll 6 while the portion 12 has a number of prongs to fit between the rings. Fingers 43 and a plate 44 may be used to cause the work to by-pass the folding mechanism. Specification 664,178 is referred to.
Patent GB-618848-A (GB)
Title: Improvements in cathode ray oscillographs
IPC: G01R13/32
Filed: 1946-11-18
Abstract: 618,848. Cathode-ray oscillographs. BRITISH THOMSON-HOUSTON CO., Ltd., and MELVILLE, W. S. Nov. 18, 1946, No. 34126. [Class 37] [Also in Group XL (c)] . A square-topped voltage pulse for application between anode and cathode of a cathoderay tube simultaneously with or immediately prior to the application of a pulse to be examined to the deflection plates, is produced by the discharge of a loss-free cable circuit with a resistance of value equal to the surge impedance of the cable circuit. As shown in Fig. 3, a " loss-free " cable circuit 1 is charged by an alternating current synchronized with the pulse under examination and applied to terminals 2. The cable circuit is discharged into the primary of a pulse transformer 10 by means of a thyratron 7, the operating potentials for the cathode-ray tube being tapped across resistor 5. Firing of the thyratron at zero value of current in the charging circuit is ensured by inserting an inductance 14 in this circuit and feeding the grid of thyratron 7 from the secondary of a peaking transformer 15, the primary of which is also in the charging circuit. The voltage developed across the cathode resistor 16 when the thyratron fires may be used to initiate the pulse under examination. The pulse transformer secondary is wound bifilar and used as a path for the filament heater current. In a simpler embodiment the pulse transformer is omitted, the cable circuit discharging direct into a resistor from which the tube operating potentials are tapped. The cable circuit is then charged through a half-wave rectifier by the A.C. synchronized with the pulses under examination and these same pulses are used to fire the thyratron. In the embodiment described in connection with Fig. 2 (not shown), the cable circuit is of the type mentioned in Specification 589,127, [Group XL], in which two loss-free lines are charged in parallel and discharged in series to produce double anode voltage. Fig. 6 shows an arrangement in which a condenser 20 in series with the discharge resistor produces a linear time-base for the tube and a potentiometer 22 fed by a pulse transformer 23 is used for centring the trace. It is stated that scanning circuits of the type described in Specification 598,169 may be used.
Patent GB-406836-A (GB)
Title: Improvements relating to driving arrangements for stepping switches
IPC: H04Q1/32
Filed: 1932-12-02
Abstract: 406,836. Distant control systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and SOUTHAM, A. A., 58, Larchwood Road, New Eltham, both in London. Dec. 2, 1932, No. 34148. [Class 40 (i).] In an arrangement for stepping a number of switches in unison under the control of a master switch, the stepping of the master switch is controlled collectively by the switches. The magnets A ... D of the switches to be stepped are controlled by the master switch magnet M through the medium of a relay R. The energizing circuit of M includes normal contacts of A ... D in series, while its holding circuit includes normal contacts of A ... D in parallel, so that M cannot fall back until all these magnets operate. Thus failure of any of the magnets to energize or de-energize results in stoppage of the stepping operations. The switches are of the reversedrive type. If the master switch is remotely situated from the switches to be stepped, only two connecting wires are necessary, namely, those leading from the magnet M and from its contact.