baber/WOPTO huggingface dataset:
Patent GB-458335-A (GB)
Title: Improvement in or relating to well-drilling plant
IPC: E21B19/16
Filed: 1936-02-20
Abstract: 458,335. Well - drilling equipment. FOSTER, W. W., and WEST, G., (trading as HILL & FOSTER CO.), City National Bank Building, Wichita Falls, Texas, U.S.A. Feb. 20, 1936, No. 5158. Convention date, April 11, 1935. [Class 85] [See also Group XXIV] Means for controlling a pull line used in making up and breaking out casing &c. comprises a rotating line shaft 1 keyed to a sleeve 4 to which is bolted a spool 2 with an internal cone clutch surface surrounded by cooling fins 3 ; a drum 9, to which the pull line is secured, has a complementary clutch surface 12 and is rotatable on roller bearings 16. A ring 22, enclosed by a flanged ring 23 and held stationary by a rod &c. 25, bears through balls 20 against a ring 19 threaded to the sleeve 4. Normally inclined ball-headed pins 29 engage sockets in the ring 22 and in a ring 27 bearing through balls 28 on the drum 9. On rotating ring 27 by handle 31, the pins 29 force the drum 9 into driving engagement with the spool 2 ; on release of the handle 31, springs 32 return the ring 27 which, through an overhanging lip 35, returns the drum 9 which is then held by a brake shoe 39 carried by a pivoted lever 38 pressed by a spring 41.
Patent GB-258480-A (GB)
Title: Improvements in clips for fountain pens, or pencils
IPC: B43K25/02
Filed: 1926-02-23
Abstract: 258,480. Widmer, H. A. Feb. 23, 1926. Pockets, retaining pens &c. in. - A clip arm 6 for a fountain pen or pencil is adapted to lie within a slot in the wall of the pen &c. when not in use and to be projected through the slot about its pivot 8 into operative position (shown in dotted lines) by pressing upon a plunger 15, in the end of the cap, against a spring 10 anchored to the upper end of the arm 6 and lying within the pen &c.
Patent GB-1514687-A (GB)
Title: Vibratile optical boresight
IPC: G02B23/16
Filed: 1976-12-16
Abstract: 1514687 Optical scanning DECCA Ltd 16 Dec 1976 52654/76 Heading G2J [Also in Division F3] A vibratile optical boresight comprises a lens or mirror (part spherical or parabolic) mounted for vibration, in a plane normal to its axis, between the free ends of at least two Piezo-electric cantilevers. As shown, a lens 4 (plane view) mounted in an annular cannister 3 is supported by leaf-springs 5 between the free ends of the two triangular cantilevers pairs (or three cantilevers at 120 degrees apart). One or both pairs are vibrated with AC supplied to electrodes 9/10 to produce conical or nutating sweeps of the target with a laser beam fed through an aperture 2 in a support plate 1.
Patent GB-377910-A (GB)
Title: Improved means for producing two or more notes from a stopped organ pipe
IPC: G10B3/08
Filed: 1932-02-23
Abstract: 377,910. Valve components. COMPTON, J. H., Chase Road, Willesden, and HAWTIN, C., 37, Audley Road, Ealing, both in London. Feb. 23, 1932, No. 5402. [Class 135.] Closure members, elastic.-In a device whereby two or more alternating notes are obtained from a single stopped organ-pipe A by means of one or more supplementary chambers B, the double-valve armature of a key-energized electromagnet 25 controlling a motor 8 is formed of a bifurcated spring 23.
Patent GB-230088-A (GB)
Title: Improvements in or relating to endless-belt paper forming machines
IPC: D21F9/02
Filed: 1925-02-27
Abstract: 230,088. Danninger, A., (Assignee of Voith, J. M. [Firm of]). March 1, 1924, [Convention date]. Fourdrinier machines.-At the breast roll end of high-speed' paper machines an endless strip C of fabric is provided beneath the forming wire A to retard the draining of the pulp on the forming wire until the pulp has been uniformly distributed. The action of this strip may be regulated by mounting the guide roll D and register rolls of the strip on an arm pivoted about the axis of the breast roll B.
Patent GB-312210-A (GB)
Title: Improvements in or relating to the production of hub shells
IPC: B21D53/30
Filed: 1928-02-21
Abstract: 312,210. White, A. E., (Motor Wheel Corporation). Feb. 21, 1928. Hubs; spokes, securing. - A hub-shell 11 is formed from a profiled strip which is bent to cylindrical form and the ends butt-welded, the spoke-flange 20 being secured by expanding the end 18 of the shell.
Patent GB-230097-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/16
Filed: 1925-02-28
Abstract: 230,097. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Feb. 29, 1924, [Convention date]. Thermionic amplifiers and detectors.-Relates to receiving circuits comprising a negativeresistance device of the dynatron or similar type adapted to rectify as well as amplify the warning signals, and' consists in the provision of means for reducing the effective resistance of the whole circuit to zero both for a definite high frequency and for a broad region of low frequencies. The circuit shown in Fig. 2 is inserted between two points P, Q where the negative resistance effect is generated, as by the fourelectrode tube 15, Fig. 3. When the circuit 10, 11, Fig. 2, is tuned to the high or carrier frequency, the total effective resistance will be less than that of the resistance 12, owing to the shunt circuit 13, 14 across the latter. If the ohmic resistance 12 is initially equal to the absolute value of the negative resistance effect introduced between th points P, Q, the effective resistance of the whole circuit becomes zero for this particular frequency. For the rectified audible frequencies the resistance of the circuit 10, 11 is practically negligible, whilst that due to the ohmic resistance 12 (the condenser 13 having small capacity) can be neutralized as before. Fig. 3 shows the application to a receiving circuit comprising a four-electrode tube 15 having a high-potential grid 24 and a control grid 23 shunted by a rectifying leak 26. The circuit 27, 28 is tuned to the carrier wave whilst the adjustable resistance 29 is shunted by a variable condenser 30. Fig. 4 shows an alternative arrangement. The inductance 37 and series condenser 36 (bridged by a leak resistance 33) are tuned to the high frequency, and are shunted across the points P, Q in parallel with a coil 34 (which acts as a choke to the high frequency) in series with one ohmic resistance 35. The high frequency takes the path 36, 37 the resistance of which can be neutralized by adjusting the leak 33. The effective resistance of the parallel paths 33, 32 and 35, 34 open to the low frequency currents can also be made zero so long as the resistance 35 is less than the negative resistance, factor. Specification 172,320 is referred to.
Patent GB-984046-A (GB)
Title: Improvements in and relating to beating rollers for use with vacuum-cleaners, carpetsweepers or the like
IPC: A47L9/04
Filed: 1964-02-11
Abstract: 984,046. Suction cleaners; carpet sweepers. PHILIPS' GLOEILAMPENFABRIEKEN N.V. Feb. 11, 1964 [Feb. 14, 1963], No. 5674/64. Heading A4F. A beater roller for a suction cleaner or carpet-sweeper has a body formed in two parts 3, 4 between which is clamped a plate-shaped beating element having projecting parts 6, 7. The clamping surfaces are twisted so that the parts 6, 7 are helical.
Patent GB-1059632-A (GB)
Title: Improvements in apparatus for converting oxygen to ozone
Inventor: WALLER JOHN GEORGE
IPC: C01B13/11
Filed: 1963-02-12
Abstract: 1,059,632. Ozonizers. BRITISH OXYGEN CO. Ltd. Feb. 11, 1964 [Feb. 12, 1963], No. 5703/63. Heading H5H. The ends of earth potential plates 21 in an ozonizer are cast in a block 36 of low melting point metal to provide good thermal contact with a cooling chamber 32. The chamber comprises copper baffles around which refrigerant is circulated by pipes 33, 34. The earth electrodes 21 are of copper sheet and the high tension ones 20 are of aluminium gauze, with mica insulation 22. The plates are spaced by vertical edge strips of plastics material which also constrain the gas (oxygen) to flow through the plate assembly. There is a pressure resistant casing 1, 2, with a safety valve and bursting disc, the gas entering at 6 and leaving at 8. Dimensions and performance figures are given.
Patent GB-413241-A (GB)
Title: Improvements in or relating to self-filling fountain pens
IPC: B43K5/04
Filed: 1934-02-21
Abstract: 413,241. Fountain pens. JOWITT, J. S., 3, Clifton Square, Lytham, Lancashire. Feb. 21, 1934, No. 5731. [Class 146 (iii).] In a collapsable-sac self-filling fountain pen, the sac 2 is deflated by pressing together the extensions 5, 5<1> of two strips 3, 3<1> disposed on opposite sides of the sac and bent to cross one another near the rear end to form a fulcrum. The strips are formed of non-corrodible material such as stainless steel, or steel coated with cellulose or like varnish, and are sufficiently resilient to enable them to come into contact along the greater part of their length. The strips are arranged to diverge slightly so that when pressed together they tend to deflate the rear end of the sac first. Slots, notches, shoulders on other formations may be provided or the strips to enable them to be retained in correct relative positions. The free ends of the strips are normally covered by a screw cap 6.
Patent GB-208952-A (GB)
Title: Improvements in or relating to mechanical time fuses for projectiles
IPC: F42C9/04
Filed: 1923-02-28
Abstract: 208,952. Barker, J. S. Feb. 28, 1923. Projectile fuzes.-The setting ring B. Fig. 1, of a clockwork fuze carries both the spring striker B<3> and the percussion cap B<7> and is rotaably mounted over a groove A<3> in the fuze body A, which groove is filled with fuze composition and connected to the magazine A<2> by ducts A<4>. The spring striker is held cocked by a trigger B<5> having an arm B<6> bearing agaiust a stop D<2>, which is pivoted on a pin D', Fig. 2, and is normally locked by a catch D<5> pivoted at D<6> and held in the locking position by a spring D<7>. A trip lever E' is slidably mounted on an arm E on the clockwork and is normally held inwards by a spring E<2>; in this position the free end of the lever E<1> is out of the path of a stud D<4> on the stop D<2>, and the setting ring B can be rotated to any position according to the time desired. During flight after the discharge of the projectile from a rifled gun, centrifugal force causes the catch D<5> to swing out and release the stop D<2>, and also causes the lever E' to extend out, so that at the appointed time it bears on the stud D<4> and rocks the stop D<2>, thereby releasing the trigger, which allows the firing-pin to strike the percussion cap. The setting-ring B carries the cap F and is held in place by the clockwork frame which is secured to the fuze body by screws G.
Patent GB-896518-A (GB)
Title: Improvements in or relating to straight-bar knitting machines
IPC: D04B11/22
Filed: 1959-02-20
Abstract: 896,518. Knitting- machines. MONK (SUTTON IN ASHFIELD) Ltd., S. A., and MONK, S. A. May 19, 1960 [Feb. 20, 1959 ; April 16, 1959], Nos. 5834/59 and 12895/59. Class 74 (2). A replaceable downwardly-extending fluted presser-element 1 is engaged in a groove 7 on the lower part 3 of the sinker bar between each pair of sinkers of a straight-bar machine to take the wear caused by the continuous action of pressing of the needles. The element may extend beneath the sinker bar and afford a pressing surface for the horizontal needles of a rib machine. Alternatively -the fluted presser element 11 may be formed on the end of a slide 13 which is raised to render the element inoperative when a tuck stitch is to be required. This is achieved by the provision of a lever for each slide under the control of a pattern drum 22 adapted to be rotated and raised and lowered out of and into contact with the levers 17 to raise or otherwise the slides 13. A resilient coupling in the form of a spring-loaded crank 25 between each lever and slide enables the selvedge elements to remain operative, particularly during fashioning as controlled by the fashioning mechanism irrespective of the pattern drum setting.
Patent GB-1415802-A (GB)
Title: Method of coating or encapsulating with silicates
IPC: B01J13/14
Filed: 1973-02-06
Abstract: 1415802 Encapsulation with silicates COSMIX CHEMICAL CORP 6 Feb 1973 [22 Feb 1972] 5841/73 Heading B8C [Also in Division B2]  Encapsulated or coated particles are formed by dispersing an organic compound containing polar groups and, optionally additional core material, in a solution or colloidal dispersion of an inorganic silicate whereby the organic compound and core material becomes coated or encapsulated. The silicate is a hectorite type clay which reacts with the polar groups of the organic compound but must not be one which forms a true solution in water nor one which can " thicken " water by hydrate formation. The organic compound may be a simple compound containing one or more polar groups or a polymeric substance, e.g. a water-soluble cellulose derivative, polysaccharide, protein or synthetic polymer, many specific examples of which are mentioned. In particular, water emulsion polymer latexes such as those used in latex paints and containing one or more of such polar groupcontaining materials may be encapsulated including latexes containing colouring materials but reference is also made to ceramic frits, hydrocarbon liquids, essential oils and inks.
Patent GB-291166-A (GB)
Title: Improvements in or relating to devices for converting electric oscillations into mechanical vibrations, such as telephones
IPC: H04R11/00
Filed: 1927-03-02
Abstract: 291,166. Wade, H., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). March 2, 1927. Magnetic instruments.-The vibrating armature of a magnetic telephone instrument is surrounded by a coil carrying the telephonic currents, and is secured at its ends to a spring-supported frame which allows the armature freedom of movement in the direction of two parallel but oppositely-directed magnetic fields. As shown in Figs. 1 and 2, the pole-pieces 2, 3 are attached to a permanent magnet 1. Each pole-piece has two poles arranged diagonally so as to create, at the two gaps, oppositely-directed fluxes parallel to the legs of the magnet 1. The armature 6 is supported in the gaps by a rectangular frame 7 enveloping the pole-pieces and itself supported by springs 8 attached at one end to a rigid arm 9. The armature 6 is thus free to move bodily up and down between the poles 2, 3 and to operate a diaphragm &c. by the rod 5. Between the pole-pieces, and surrounding the armature 6, is arranged the coil 4 carrying the telephone current. The springs 8 may be stiff enough to prevent the armature 6 from making contact with the poles 2, 3; or wires or cords may be attached to the frame 7 to limit its vibratory movement.
Patent GB-326965-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1929-02-22
Abstract: 326,965. Electrolux, Ltd., (Platen- Munters Refrigerating System Aktiebolag). Feb. 22, 1929. Refrigerating. absorption machines and systems for.-In a continuous-cycle machine in which the parts are in open communication with one another, two independent parallel paths are provided for the passage of liquid from a reservoir to a higher level. Thus, e.g. the strong liquor from the absorber A passes to the generator 0 through conduits 16, 17 and 18, 19, 20, the conduit 16, 17 including a heat exchanger T and a heated circulating coil P, and the conduit 18, 19, 20 a heated coil P2. During the normal operation of the machine, liquid flows through the conduit 16, 17 from the absorber, but if this conduit becomes inoperative the liquid level rises in the absorber until the liquid nows into the duct 18. The coil P, is heated from the generator flue 2 and the coil P2 from the coil P1. The coil P2 may be independently heated, in which case the duct 18 should be connected to the liquid space of the absorber. Specification 283,474 is referred to.
Patent GB-1148843-A (GB)
Title: Improvements in record players
Inventor: LANE NORMAN
IPC: G11B3/12
Filed: 1967-02-08
Abstract: 1,148,843. Gramophones. BSR Ltd. 6 Feb., 1968 [8 Feb., 1967], No. 6009/67. Heading G5R. An adjustable anti-skating device comprises a tension spring 21 anchored at one end 24 and connected at its other end 18 to a member attached to a vertical spindle 16 supporting the pick-up arm. As shown, the spring is anchored to a peg 24 on a spindle 23 manually rotatable to adjust the spring tension according to the playing weight. The other end of the spring is attached to a quadrant selector plate 17 by means of which the pick-up arm performs an automatic cycle (not detailed).
Patent GB-249837-A (GB)
Title: Apparatus for aerating seed drums
IPC: A01C1/02
Filed: 1926-03-03
Abstract: 249,837. Topf, E., (trading as Topf & Soehne, J. A.). March 25, 1925, [Convention date]. Treating with air and gases; treatment by steaming; germination, assisting.-An apparatus for treating seeds contained within a drum with air at a desired condition as regards temperature and moisture and carbon content is provided with a series of passages controlled by valves leading to the drum so that the air may be led through the drum in any desired way and may be passed through the apparatus repeatedly, being mixed if desired with fresh air. The seed container comprises the upper part of a drum 1 having a perforated longitudinal partition 3 and end chambers 2. Perforations 4 in the upper part of the drum are covered by hoods 32 leading to an upper passage 8. A blower 16 arranged at the - side of the apparatus forces air into a chamber 11 in which is fitted a device for moistening and heating or cooling the air. A partition 17 is provided to lengthen the path of the air through this chamber. The air escapes through an opening 18 into a chamber 12 where it may be cooled or heated or moistened again and then passes through a pipe 5 either into the lower part of the drum or through a pipe 7 into the passage 8 and so to the upper part of the drum according to the position of valves 13, 15. The air may also be directed from the chamber 12 through the opening 19 and passage 10 to the compartment at the far end of the drum, the passage 10 being controlled by a valve 31 that also serves to put this passage into communication with a vertical passage 28. A valve 30 at the end of the passage 8 puts the passage 28 or the passage 8 into communication with a pipe 21 leading to an exhaust blower 20. By intermediately positioning the valve 30 both passages may be placed in communication with the exhaust blower. A pipe 22 connects the discharge of the blower 20 with the suction pipe 25 of the blower 16.
Patent GB-821597-A (GB)
Title: Improvements in reactors for production of high melting reactive metals
IPC: C22B34/12
Filed: 1958-02-25
Abstract: <PICT:0821597/III/1> A reaction vessel for the production of reactive metals by exothermic reaction has side walls 12, a hemispherical bottom 13, a removable lid 14 and nozzles 15 for injecting reactants into the vessel, all constructed with an inner layer 16 of low-carbon steel and an outer layer 17 of stainless steel bonded thereto. Preferably the stainless steel layer has a thickness of 10% of the overall thickness of the wall of the vessel.
Patent GB-394075-A (GB)
Title: An improved construction of hod for builders or others
IPC: E04G21/00
Filed: 1932-02-29
Abstract: 394,075. Hods. HAMMATT, B. J., 171, Colindale Avenue, Hendon, London. Feb. 29, 1932, No. 6056. [Class 20 (ii).] A hod body is formed of bent sheet-metal with wired edges, and one end is closed by a flat sheet-metal plate. A saddle b is placed at the bottom near the closed end and adjacent to it is a frame c to which is pivoted three legs e, two opening out in a transverse and one in a longitudinal direction to form a tripod. The legs are so shaped that when closed together they form a circular or other sectioned handle and the ends may be screwed to receive a holding-nut or cap. Apertures a are provided in the body whereby the hod may be raised by slings when necessary.
Patent GB-970016-A (GB)
Title: Improvements in and relating to tunnel boring machines
Inventor: FOSTER ARTHUR CHARLES HENRY
IPC: E21D9/087
Filed: 1963-02-14
Abstract: 970,016. Earth-tunnelling machines. KINNEAR MOODIE & CO. Ltd., and ARTHUR FOSTER CONSTRUCTIONAL ENGINEERS Ltd. Feb 14, 1963, No. 6067/63. Addition tc 762,416. Heading E1F. The tunnelling machine of the parent Specification, which is referred to, is modified in thai the annular gear ring 30 and drive pinions 31 for rotating the boring head are so designed that each pinion 31 rotates about an axis parallel to the rotational axis of the head instead of about an axis at right angles thereto as in the parent Specification. Each pinion 31 is mounted on the output shaft of either a reduction gear 33 driven through clutch means 35, 37 from a motor 36 or a variable speed hydraulic motor.
Patent GB-655171-A (GB)
Title: Improvements in the production of ammonium sulphate
IPC: C01C1/242
Filed: 1948-02-27
Abstract: <PICT:0655171/III/1> In making large crystals of ammonium sulphate by passing coke oven gas into a sulphuric acid bath in the lower part A1 of a saturator tank A having at its lower end a crystal receiving space A5 with crystals being withdrawn through outlet A6 in a stream of liquid, the size of the crystals withdrawn is regulated by restricting by variable valve means Q, the communication between the crystal receiving space and the lower portion of the bath and bath liquor is returned through inlet A7 to the crystal receiving space faster than it is withdrawn so as to cause an upward flow of liquor to restrict the settling of small crystals into the receiving space. Circulation of the liquor in the saturator is also assisted by blowing in air or ammonia gas through orifices in the ring p2, which forms the rim of the valve Q.  The crystals and bath liquor are withdrawn and fed to a tank E, the crystals being dried in centrifuges F, FA, and the separated and overflow liquor being returned to the saturator via inlet A7.  Overflow liquor from the saturator passes through a tar separator I and is pumped through a heater K into the liquor return pot L or through line J2 into tank M from which it may pass to the return pot or to saturator inlet A7. Make-up acid is fed in through pipe b.  The ammonia gas is fed into the bath of liquid through cracker pipe B to the discharge mouth B2 open at its underside.
Patent GB-545279-A (GB)
Title: Improvements in and relating to thread control mechanism for sewing machines
IPC: D05B1/20
Filed: 1941-05-12
Abstract: 545,279. Sewing-machines. UNION SPECIAL MACHINE CO. May 12, 1941, No. 6107. Convention date, Aug. 3, 1940. Addition to 545,237. Drawings to Specification. [Class 112] In a thread-feed proportioning device of the kind described in the parent Specification, the several threads pass over independently mounted single groove discs which are interconnected by gear wheels. The discs may be of uniform diameter and differential feeding secured by using different sized gear pinions. The idler wheel connecting the several pinions is slidingly mounted so that it can be moved axially, against spring pressure, out of gear with the pinions so that the thread discs may be rotated separately.