baber/WOPTO huggingface dataset:
Patent GB-552600-A (GB)
Title: Hob for generating crown gears
IPC: B23F21/16
Filed: 1941-12-02
Abstract: 552,600. Gear cutting. FELLOWS GEAR SHAPER CO. Dec. 2, 1941, No. 15523. Conven. tion date, Dec. 14, 1940. [Class 83 (iii)] A bobbing cutter 10 particularly for generating a crown gear 11 conjugate to a spur pinion but applicable also for generating spur or helical gears or straight or helical internal gears has the teeth arranged in helical convolutions around the tool axis A, the teeth in adjacent convolutions being radially arranged along a circular arc, Fig. 3, whose centre of curvature 16 lies between the end faces of the tool. The crown gear blank 11 has a tooth bearing rib 12 and is adapted to mesh with a spur gear having an axis 15 intersecting the crown gear axis at right angles. At the outside diameter of the crown gear, the pinion teeth engage with a pitch circle PC, Fig. 4, LA being the line of action and M the length of action. At the inner end the teeth have a smaller pitch circle giving a smaller pressure angle and increased length of action. The hob teeth in Fig. 3, which shows a section normal to the tooth helix, are of involute form and are arranged on a base circle BC of the same radius as the base circle BC in Fig. 4. The hob teeth have longer addenda at their cutting ends for cutting clearances in the work and have the usual top and side relief. The base surface of the hob considered as a whole Is thus a toric surface generated by revolution of the arc BC round the hob axis A. Preferably the teeth are arranged on a single thread helix. In operation the median plane of the hob is offset from the blank axis so as to bring the teeth in the middle of the hob substantially radial of the blank when in the cutting zone. The hob and blank are then rotated in timed relation, and the hob fed radially of the blank. The teeth in the mid zone of the hob engage first and when the Fig. 1 position is reached the outer ends of the teeth are completely generated. The feed is continued until, when the position shown in Fig. 5 is reached, the operation is finished.
Patent GB-406530-A (GB)
Title: Improvements in rotary kiln plant for the manufacture of cement
IPC: C04B7/47
Filed: 1933-05-30
Abstract: In the manufacture of white cement a reducing-agent, such as coal, is fed into a rotary kiln near the outlet end, and cooling of the charge is effected within the kiln by supplying a non-oxidizing cooling-agent, such as water.
Patent GB-376439-A (GB)
Title: Improvements in or relating to nail polishers
IPC: A45D29/12
Filed: 1931-05-28
Abstract: 376,439. Nail polishers. CAD•, M., 100, Rue Lafayette Hotel Francia, Paris, May 28, 1931, No. 15658. Convention date, July 9, 1930. [Class 131.] A nail polisher comprises a handle 13 provided with pins 14, 15 on which may be slipped sleeves 11, 12 formed on a polishing leather which is doubled on itself to constitute a pocket having sides 3a, 3b and a central partition 6. The sleeves may be constituted by interengaging short sleeves 21, 22, Fig. 4, formed on each half of the pocket, and sleeves may be formed on both pocket-halves, to engage two pairs of pins on the handle. The sleeves may consist of metal rings sewn on the pockets, and the pocket-halves may be secured to the sleeves by clasps. In a further modification, the pocket-halves are equipped with half-cylinders 27a, Fig. 6, which are locked on the pins by slotted cylinders 27.
Patent GB-361835-A (GB)
Title: High voltage mercury arrester
IPC: H01T1/08
Filed: 1930-05-21
Abstract: 361,835. Metallic-vapour apparatus. MITSUDA, R., 14, Ichigayanakano-cho, Ushigome-Ku, Tokio. May 21, 1930, No. 15677. Convention date, May 23, 1929. [Class 39 (i).] A pile of similar discs, with alternate ones reversed, end for end, Fig. 4, forms a highvoltage mercury arrester. The discs are shown in Figs. 1 and 3 as seen from the top and bottom respectively. Walls 6, 7, 8 from one disc project into the concentric mercury pools on the adjacent disc so that an arc starting, say, from pool 1 must form a series of short arcs. The apparatus is arranged in a vacuum. It may be applied as a high-voltage arrester, or placed in series with a neutral point earthing coil whereby connection to earth is made through the apparatus only under abnormal conditions. When used in association with the anode circuit of a mercury rectifier to raise its working voltage, short-circuiting between phases is prevented also.
Patent GB-936878-A (GB)
Title: Process of and apparatus for melt spinning normally solid, organic thermoplastic polymeric fibre-forming materials
Inventor: BAYERL VICTOR
IPC: B29C48/03
Filed: 1961-05-01
Abstract: In the melt spinning of normally solid organic thermoplastic polymeric fibre-forming material by feeding the material in particulate form into a melting hopper or chamber and continuously and immediately conducting the melt to one or more spinning pumps the material is melted in the chamber by a high frequency electric field produced by applying a high frequency voltage, e.g. 1,500 volts, to two condenser plates one on each side of the chamber. The material may be pre-heated in a fluidized bed by a hot inert gas to a temperature somewhat below its melting point.  An electrically insulated screen is preferably provided between the melting zone in the chamber and the receiving zone for the melt in the lower portion of the chamber to prevent particles of unmolten material from falling into the melt.  If the dielectric properties of the material alter during the melting step, the strength of the electric field may be correspondingly adjusted by arranging for the distance between the condenser plates to increase or decrease towards the lower end of the chamber.  The breadth of the plates and of the corresponding chamber walls may also be increased or decreased so that the area of the internal cross-section of the chamber is increased or decreased.  The voltage of the high frequency field may be automatically controlled by means responsive to the temperature of the emergent stream of melt in order to prevent overheating of the melt in the event of any temporary reduction in the rate of spinning.  The melting chamber is preferably square or rectangular in cross-section, but may also be circular in cross-section, in which case the condenser plates may be arcuate or in the form of concentric cylindrical plates.  The condenser plates may be subdivided transversely into a series of small consecutive plates, the high frequency fields produced by each pair of which can be independently varied in order to control the heating of the polymeric material more precisely.  The width of the condenser plates may decrease towards the bottom of the melting chamber in inverse proportion to the increase in density of the polymer as it travels from the melting zone to the pool of melt in the lower portion of the chamber.  The invention reduces the period of residence of the polymer in the chamber and heats the polymer more uniformly, decomposition of the polymer being thereby reduced.
Patent GB-948329-A (GB)
Title: Underwater wellhead apparatus
IPC: E21B33/064
Filed: 1962-04-25
Abstract: 948,329. Underwater wellheads. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 25, 1962 [April 27, 1961], No. 15768/62. Heading E1F. A support base 26 for an underwater wellhead has a hole therethrough, and carries latches 58 adapted to engage a tubular member 33 extending through the hole to prevent axial separation of the base and member. The upper part 32 of the member is a casing head having a flange 70 which seats on the bodies 57 of the latches or on the base. Each of the latches are urged over the flange by springs 60, . . . 62 supported by guides 63, . . . 65, the guides 64 having nuts 66 permitting the latches to be held inoperative. The undersurfaces of the points of the latches may be bevelled to cooperate with a sloping upper surface on the flange. The latches may engage notches in the casing head. Specification 948,322 is referred to.
Patent GB-1268461-A (GB)
Title: Wire-cutting machine
Inventor: LEVEQUE JEAN
IPC: B23D25/12
Filed: 1970-04-02
Abstract: 1,268,461. Shearing. COMMISSARIAT A L'ENERGIE ATOMIQUE. 2 April, 1970 [3 April, 1969], No. 15771/70. Heading B3W. Wire-cutting shears comprise discs 17 and 18 mounted on extensions 15 and 16 of the shafts of stepping motors 11 and 12. The discs convey equispaced, complementary knives 24 which cut the wire 20 at right angles to the axis of the wire.
Patent GB-456009-A (GB)
Title: Improvements in or relating to drummers' equipments
IPC: G10D13/02
Filed: 1935-06-04
Abstract: 456,009. Trollies. DEANS, C. F., The Chestnuts, Swinemoor Lane, Beverley, East Riding, Yorkshire. June 4, 1935, No. 16075. [Class 108 (i)] [See also Group XXXVIII] A wheeled stand for a drummer's outfit comprises a tray 19 secured by parallel bolts 20 between the slotted ends 17 of two brackets 16 pivoted at 15 to the side frame-members 10. The drum is supported underneath by a strap 13, and one of the rods 20 has uprights 23 to support cymbals, wood blocks, &c.
Patent GB-544857-A (GB)
Title: Improvements in the cylinder heads of internal combustion engines
IPC: F01L3/22
Filed: 1940-11-05
Abstract: 544,857. Nickel-copper alloys. SMITH, C. R., and SMITH, A. B. Nov. 5, 1940. Nos. 1696 and 16729. [Class 82 (i)] [Also in Groups XXVII and XXII] The sealing collar k in a cylinder head having a heat-transfer member c may be made of a nickelcopper alloy containing a little iron. Specification 448,540, [Group XXVIII, is referred to.
Patent GB-571003-A (GB)
Title: Improvements in and relating to electrical strain-gauge apparatus
IPC: G01L1/22
Filed: 1943-10-01
Abstract: 571,003. Determining physical qualities and dimensions of materials ; resistance measurements. BOYDELL, K. R. Oct. 1, 1943, No. 16158. [Class 37] In strain gauging apparatus of the type in which the variations of potential of a direct current produced by the strain gauges are fed to an amplifier, the output of which operates an indicating or recording device, the input to the amplifier is periodically interrupted so that steady stresses may be measured as well as alternating stresses. The voltage to be measured is compared with a datum voltage, and the interruption of the input to the amplifier is such that the duration of the impulses is markedly different from the intervals between them. The strain gauges 1, 2 are connected in a bridge circuit energized from a D.C. source 3. Leads 4, 5 are connected to the input terminals of a thermionic amplifier 6, the output of which is connected to a recording device 7, which may be an oscillograph of the mirror galvanometer type. Alternatively, a voltmeter 8 may be employed. A condenser 9 prevents the passage of D.C. to the amplifier 6. Between the leads 4, 5 is a switch 10 which, when closed, short-circuits the input to the amplifier. This is opened and closed rapidly by a cam 12 driven by a motor 11. The cam 12 is designed so that the duration of the impulses is markedly different from the intervals between them, to give recognisably different wave-forms according as the variations in potential are in a positive or negative direction from the datum value.
Patent GB-542479-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B5/12
Filed: 1940-11-08
Abstract: 542,479. Fastenings. CINCH MANUFACTURING CORPORATION. Nov. 8, 1940, No. 16250. Convention date, Nov. 24, 1939. [Class 44] A fastening for securing a hollow body 1, such as a moulding, to a support 2 comprises a base 3 engaging the moulding at its edges 6, and having a spring finger 13 frictionally engaging the side of the moulding. Two arms 14 are pressed from the base 3 and have a scissors relation, so that they form a spring stud to be pressed through an opening 17 in 2 to fix the moulding in position.
Patent GB-694276-A (GB)
Title: Improvements in or relating to processes of preparing the antimony derivatives o-carbalkoxyphenylthioantimony dichloride and the new antimony derivatives
Inventor: WILEY PAUL FEARS
IPC: C07F9/90
Filed: 1951-07-09
Abstract: The invention comprises lower alkyl esters (the alkyl groups contain not more than 4 carbon atoms) of an acid of the general formula <FORM:0694276/IV (b)/1> and a process for the preparation of the above compounds by heating the required thiosalicylic acid ester and antimony trichloride in an inert organic solvent.  In the example the methyl ester is prepared.  The ethyl, n-propyl and n-butyl esters are also referred to.
Patent GB-983941-A (GB)
Title: Improvements in or relating to pulse communication systems
Inventor: SANDEMAN EDWARD KENNETH
IPC: H04L5/04
Filed: 1962-04-27
Abstract: 983,941. Multiplex pulse signalling. ENGLISH ELECTRIC CO. Ltd. May 29, 1963 [April 27, 1962], No. 16283/62. Heading H4L. In a pulse transmission system, two independent intelligence carrying pulse trains are transmitted in opposite senses with the same timing on a single channel and a coincidence detector at the transmitter receives the two pulse trains and when pulses from the two trains are to be transmitted simultaneously, initiates the transmission of a distinctive pulse indicative of the coincidence. D.C. or A.C. pulses may be used. At the transmitter the signal A is supplied via delay 11 and gate 13 to a mixer 15 and the signal B is supplied via delay 12 and gate 14 to the mixer. The two signals also are supplied to an AND gate 10 so that when two pulses are coincident a signal is supplied to inhibit the gates 13, 14 and trigger a pulse generator 16 which supplies to the mixer 15 a positive-going pulse of double the normal amplitude. At the receiver the positive- and negative-going signals are passed by rectifiers 17 and 18 respectively and an amplitude discriminator 19 supplies an output to the mixer 20 only when pulses of double the normal amplitude are detected.
Patent GB-992772-A (GB)
Title: Bicycle stand
IPC: B62H3/00
Filed: 1963-04-25
Abstract: 992,772. Cycle stands. O. NORGARD, and I. WOLFF. April 25, 1963 [April 28, 1962], No. 16334/63. Heading B7J. A bicycle stand includes a cover for the saddle of the bicycle and means for retaining the saddle beneath the cover to support the bicycle. In Fig. 1, a support 1 carries a cover 3 and a clamp 2 which engages beneath the saddle. In Fig. 3, a post 9 supports a cross-bar 10 on which is pivoted an arm 11 carrying a cover 12 having depending side strips 14 which engage the saddle. The cover 12 may be disposed at rightangles to the position shown so that the bicycle is arranged parallel to the cross-bar 10. In another embodiment a post may carry a plate bent in U- shape, the upper limb of the plate forming the cover, and the lower limb being formed with a recess for engaging the saddle post.
Patent GB-302548-A (GB)
Title: Improvements in winding keys for talking machine motors
Filed: 1928-06-05
Abstract: 302,548. Gramophone Co., Ltd., and Clark, G. F. June 5, 1928. Driving.-Relates to cranked winding handles of the jointed folding type for gramophone motors, and consists in so constructing the handle that in the winding position, shown in full lines in Fig. 7, the spindle 4, crank web 2, and handle. 1 lie in one plane, but when turned into inoperative position, shown in dotted lines, by movement about the joints, the handle 1 is so longer in the same plane with the winding spindle 4 and is substantially housed within the side wall of the instrument casing 15, the web 2 lying adjacent to the casing. To effect this, the winding spindle is constructed in two parts 4, 5, Fig. 4, connected by a knuckle joint 7, 9 inclined to the axis of the part 4, and the crank web 2 is jointed at the parts 11, 12, the handle 1 being fixed to the web 2. The. joints have stop lugs to prevent excessive movement.
Patent GB-933071-A (GB)
Title: A method and plant for producing non-combustible gases from air and liquid hydrocarbon fuels
Inventor: CLARKE ALBERT EDWARD
IPC: C10L1/00
Filed: 1958-05-22
Abstract: <PICT:0933071/III/1> Non-combustible gases are produced by burning a liquid hydrocarbon fuel in a sufficient amount of air to yield combustion products consisting of a mixture of carbon dioxide, carbon monoxide and nitrogen and a small quantity, e.g. 2%, of residual oxygen, passing the combustion products through a reaction chamber fed with sufficient liquid hydrocarbon fuel to combine with the residual oxygen to produce carbon monoxide and carbon dioxide and containing copper oxide in amount sufficient to oxidize the carbon monoxide and discharging the gases from the reaction chamber.  A liquid hydrocarbon fuel is supplied to a combustion chamber a by pump b, through regulator o, where it is burnt with sufficient air from pump c and regulator p, the temperature of the combustion being controlled by cooling coils d fed with cooling water from pump e. Combustion products pass through cooler f to reaction chamber g containing copper oxide and to which a small quantity of the hydrocarbon fuel is pumped by pump b through regulator o for combustion with residual oxygen.  Product gases leaving chamber g pass in succession through cooler f1, drier h, cooler f2 and drier h1 and are discharged through n. CO2 gases may be removed by use of a suitable washer m.
Patent GB-402483-A (GB)
Title: Improvements in electric coils
IPC: H01F17/08
Filed: 1932-06-10
Abstract: 402,483. Inductances. BLUMLEIN, A. D., 7, Courtfield Gardens, West Ealing, London. June 10, 1932, No. 16468. [Class 37.] An inductance or loading coil comprising one or more windings surrounded by magnetic material forming the main magnetic circuit is further surrounded substantially completely by a shield so arranged that for low frequencies the ratio of forward path reluctance to return path reluctance is greater for lines of flux further removed from the coil windings. The term forward path is taken as extending through the centre of the coil to points such that the line of flux turns outward at an angle of say 45‹ to the coil axis. In the example, Fig. 1, the main magnetic path lies through a core 2, 3 of compressed magnetic dust. An outer surrounding shield 4 is of higher permeability and an air gap as shown lies in the forward path of the lines of flux further from the coil windings. In modifications two shields are described and the outer edges of one shield may be integral with the main core. In the modification, Fig. 4, the shield is formed by crossed windings 21, 22 of magnetic wire or tape and the air gap is formed by dishing inwards the main magnetic core 17, 18. These coils are rectangular in outer form and are adapted for assembly with others in containers 26, 27 of sheet metal,.
Patent GB-398141-A (GB)
Title: Improvements in rotary engines
IPC: F01C21/08
Filed: 1933-06-08
Abstract: 398,141. Lubricating rotary engines. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK, Winterthur, Switzerland. June 8, 1933, No. 16478. Convention date, June 11, 1932. [Class 12 (ii).] In outwardly-sliding vane engines the vanes are provided with slots c leading from depressions f on the leading faces to points within the rotor, on the rear faces of the vanes, to facilitate the passage of lubricant around the vanes. The slots in a vane may be staggered.
Patent GB-1121234-A (GB)
Title: A weft cutter for a loom with a stationary weft supply
IPC: D03D47/00
Filed: 1966-04-15
Abstract: 1,121,234. Weft cutters. M. D. DURAN. 15 April, 1966 [28 June, 1965], No. 16495/66. Heading DIE. A weft cutter moves between an operative position and an inoperative position in such a way that the cutting jaws close only when it reaches the operative position and open only when it reaches the inoperative position. A lost motion device 38, 39, 40 is connected to the moveable jaw 26 and the cutter is moved between the two positions by a cam 21. The weft is cut inside the outer warp yarns and the blades are shaped to facilitate entry between the warps. A hook 52 (not shown) is provided to hold the weft threads so that only a selected weft is cut.
Patent GB-676051-A (GB)
Title: Fuel injection pump
IPC: F02M59/48
Filed: 1950-07-03
Abstract: 676,051. Fuel-injection pumps. KLOCKNERHUMBOLDT-DEUTZ AKT.-GES. July 3, 1950 [July 4, 1949], No. 16572/50. Class 102 (i) In a fuel-injection pump in which the delivery is varied by rotating the piston 1, the regulating rod 5 has a pin 6 which engages a slot 7 in the end of the piston. The piston is actuated by a cam 8 through a member 9 and the spring abutment 12 is shaped to partially enclose the enlarged end 4 of the piston and is also bent at 13 to engage pins 14 to prevent rotation of the abutment. The opening 15 in the abutment 12 is shaped similarly to the end 4 of the piston and so disposed that the piston can be rotated to disengage from the pin 6 and withdrawn through the opening 15.
Patent GB-776039-A (GB)
Title: Sawing machine especially adapted for cutting up firewood
IPC: B27B25/04
Filed: 1955-06-09
Abstract: 776,039. Sawing. KLOMP, P. P. June 9, 1955 [March 25, 1955], No. 16620/55. Class 145 A machine for cutting up logs into firewood comprises chain band or circular saws 2 arranged parallel with one another and driven by one or more motors 3, a conveyer chain 4 driven by a motor 8 and having spaced toothed dogs 5, and a pivoted-frame 9 urged downwards by springs 11 and having strips 13 which extend between the saws and press down on the logs. An adjustable hinged feed table 15 is provided and sawdust is withdrawn by a motor-driven endless belt 17.
Patent GB-219309-A (GB)
Title: Improvements in and relating to power station arrangements
IPC: F01K13/00
Filed: 1924-07-10
Abstract: 219,309. British Thomson-Houston Co., Ltd., (Assignees of Doran, J. H.). July 20, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Mounting and supporting; working-fluid sup- T)ly.-A turbine is mounted directly on top of a boiler supplying steam to it and an intermediate stage of the turbine is provided with a reheater situated in the boiler. Steam generated in the water tubes 3 passes to a superheater 4 and thence to a high-pressure turbine 11 from which it is returned to a re-heater 17 before reaching a lower pressure turbine 13. At an intermediate point of the turbine 13 the steam is led to a re-heater 20. The high pressure turbine may be one utilizing steam at 1000 pounds and 750‹ F. and exhausting at 400-500 pounds and 500‹ F. and re-heated at 750‹ F. before admission to the turbine 13.
Patent GB-560407-A (GB)
Title: Electric furnace
IPC: F27D11/06
Filed: 1941-12-24
Abstract: 560,407. Electric furnaces. DEHN, F. B. (Clarkiron, Inc.). Dec. 24, 1941, No. 16636. [Class 39 (iii)] [Also in Group XIII - In an electric melting furnace melting is effected in a refractory tube 2 surrounded by a carbon or graphite tube 4, or a series of carbon or graphite rods. A supporting tube 5 is spaced slightly from the tube 4 to avoid excessive heating, and a refractory tube 6 is similarly spaced from the tube 5. A heat insulating tube 7 is added and an opening 8 provided for admission of air. The tube 4 is inductively heated by a surrounding coil of conducting tube 9. The melting tube 2 is mounted on a collecting chamber 11 with which it communicates by a restricted opening 12. This chamber is of refractory material 16 surrounded by heat insulation 14 and by an induction coil 15. If the molten material is not sufficiently conductive, e.g. glass, the chamber 11 may have a wall of conducting material or it may be otherwise heated. A number of melting chambers may be mounted on a single collecting chamber. The chamber 11 may be otherwise heated, e.g. it may be a hearth furnace.