baber/WOPTO huggingface dataset:
Patent GB-301914-A (GB)
Title: Improvements relating to railway traffic controlling apparatus
IPC: B61L3/12
Filed: 1928-12-04
Abstract: 301,914. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Bossart, P. N.). Dec. 8, 1927, [Convention date]. Track apparatus actuating signals on trains.- In train controlling apparatus of the intermittent inductive type in which track magnetic members at signalling positions on the track influence apparatus on the trains, the train apparatus comprises an arrangement of magnetic cores and air gaps the reluctances of which are. adjusted to be balanced or unbalanced in the manner of a Wheatstone bridge dependent upon the co-operation of the track devices. One arrangement is shown in Fig. 2 in which a coil 1 energized from a highfrequency generator G produces flux in two circuits, one including the air gaps 4, 6, the other the air gap 12 and the gap between the poles 2, 8. An unbalanced flux threads the coil 9 and serves to energize the relay R by means of a tuning condenser 10, transformer T, amplifier 23, transformer K and rectifier 22. At a danger signal, the coil 17 on the track core, in a tuned circuit including a capacity 18 and an air-core reactor 19 of low power factor, is open circuited at contact 20 and the core 16 forms an additional magnetic shunt across the poles 2, 8 of the train apparatus which is adjusted that no resultant flux passes through coil 9 so that the relay R is de-energized and remains so since the circuit includes the contact 11. The cores are formed of an iron having a high initial permeability and the magneto motive force of the coil 1 is kept low. By this means the reluctance of the core 16 may be arranged to be a substantial fraction of that between the poles 2, 8 and the apparatus is practically unaffected by passage over casual masses of iron, such as track rails, which are of less permeability. It is preferred to use a high frequency current, for example, one with a frequency of 1000 cycles per second and to laminate the cores of the apparatus in order to take advantage of the skin effect produced in casual masses of iron. It is also preferred to arrange the capacity 18 near the track core 16 and the reactor 19 near the controlling relay J since if, then, the leads become short-circuited, the closed circuit is not tuned but is of a high impedance, and reacts as if on open circuit.
Patent GB-619327-A (GB)
Title: Improvements relating to high frequency induction heating apparatus
IPC: H05B6/02
Filed: 1946-12-03
Abstract: 619,327. Induction heating. MORRIS MOTORS, Ltd., and LINDON, J. B. Dec. 3, 1946, No. 35731. [Class 39 (iii)] Automatic induction heating apparatus, for metal articles such as gudgeon pins, comprises a pair of parallel guide rails 1 extending at right angles to the plane of the inductor coil 4 so as to guide the work pieces concentrically through 1. A pair of driven feed rollers 34, 37 engage each work piece as it issues from the end 34 of the combined heating and quenching unit, and deliver it to the chute 54. The rate of feed may be varied by varying the speed of the feed roliers. A second pair of guide rails 5 arranged in alignment with the first pair, and composed of asbestos composition or alternatively of hollow construction and water-cooled, is arranged to guide the work piece through the inductor.
Patent GB-448871-A (GB)
Title: Improvements in the manufacture and production of acetaldehyde from acetylene containing hydrogen
Filed: 1934-12-13
Abstract: In the production of acetaldehyde from gases containing hydrogen and a small proportion of acetylene such as 5--20 per cent, the gases are treated with a sulphuric acid solution containing 0,3--3 grams of mercury per litre.  In an example, the solution contains 100 grams of sulphuric acid and one gram of mercury in one litre of water at 95 DEG  C., the gas being admitted through a fine-pored sinter-plate. To maintain the mercury concentration in the solution, 0,6--0,8 gram of mercury oxide is added per hour.
Patent GB-474329-A (GB)
Title: Improvements in and relating to teleprinters
IPC: H04L17/22
Filed: 1936-12-31
Abstract: 474,329. Typeprinting telegraphy. AUTOPHON AKT. - GES. Dec. 1, 1936, No. 35876. Convention date, Jan. 2. [Class 40 (iii)] [Also in Group XVI] A start - stop telegraph receiver attachment U fitted below an ordinary typewriter SV comprises permutation members WS each occupying one of two positions under the control of selector magnets WM, horizontal testing members PG with characteristic comb teeth PZ, and actuating members S acting on the type-bars TH through arms TA, the appropriate actuating member being pivoted by the selected testing member so that the hook SH is positioned for vertical displacement by the rail H when the printing magnet HM is energized. The permutation members WS are in the form of lattice girders, Fig. 3, pivoted on knife-edges WR and controlled by springs WF. The selector magnets WM have successively-operated double armatures WA1, WA2, Fig. 3, of which the former are connected to the respective permutation members, and both control contacts WK so that the magnets only receive a portion of the current impulses. The printing magnet HM is arranged with a horizontal iron circuit and with the armature HA moving substantially at right-angles to the plane of this circuit, the relatively-small movement of the armature being converted into a large movement of the rail H by a pin-and-slot connection at a point near the pivot HW. The testing members PG are lifted out of engagement with the permutation members by a rail AS operated by magnets AM at the beginning of a signal and are released for testing after the operation of the selecting magnets WM. The ends SD of the actuating members S may have cheek-members embracing the arms TA The advance of the carriage R for spacing and the lifting and restoration for case-shift are controlled by particular actuating members S, the last two being interlocked so that the carriage is kept raised until the restoration signal is received. Specification 448,607 is referred to.
Patent GB-982374-A (GB)
Title: Improvements in or relating to relative phase indicators
Inventor: HINTON-LEVER GERALD GORDON
IPC: G01R13/28
Filed: 1962-09-20
Abstract: 982,374. Synchronism indicators. BRITISH EUROPEAN AIRWAYS CORPORATION. Sept. 17, 1963 [Sept. 20, 1962], No. 35878/62. Heading H2L. In a phase synchronism indicating-arrangement, generators 3, associated with the four engines of an aircraft, produce sine wave outputs which are applied to pulse generators 5 through squaring circuits 4, the generators 5 providing pulses which occur at the same time when the engines are in the required phase condition. These pulses are applied to AND gates 6. The line scan for cathode-ray tube 9 is provided by time base 7, the amplified output of which is applied to one set of deflection electrodes. The other set of deflection electrodes receives a signal from the master engine generator, providing the frame scan for the tube. A clipping circuit 11 is associated with generators 12 producing pulses which are differentially delayed for application to each AND gate separately. The four AND circuits are connected through OR gate 13 to the modulator electrode of the tube 9. The output of the master generator is applied through phase-shift and squaring circuit 15 to each of the four AND gates. During the period in which pulses are present in the output of each generator 5, in each line scan, the generators 12 will open each AND gate in succession. Thus, on the cathode-ray tube there will appear four squares representing the four engines. If the phase of one engine becomes displaced, the output of the corresponding generator will occupy a different set of line scans, and the corresponding square will appear to be displaced in the direction of the frame scan. The circuit 15 is connected to the AND gates 6 to provide a blanking pulse for the tube during the flyback of the spot. In another arrangement, a separate raster is generated on the screen for each engine, the rasters being generated side-by-side in cyclic sequence, Fig. 3 (not shown).
Patent GB-439262-A (GB)
Title: Improvements in or relating to a process for the production of starch
IPC: C08B30/04
Filed: 1934-12-14
Abstract: In the manufacture of starch from materials such as potatoes, p sweet potatoes, manioc, yucca, or maize, by comminuting the raw material and washing out the starch from the comminuted mass, the mass is centrifuged immediately after comminution, and without previous chemical treatment, to remove the fruit liquor, i.e. the soluble albumens, gums, nitrogen compounds, mineral substances and sugar.  The mass may be diluted after centrifuging, and air should be excluded from contact with the comminuted material until the fruit liquor has been removed.
Patent GB-326190-A (GB)
Title: Improvements in or relating to inductance coils
IPC: H01F17/02
Filed: 1928-12-06
Abstract: 326,190. Sullivan, Ltd., H. W., and Griffiths, W. H. F. Dec. 6, 1928. Inductances.-An air-core inductance consists of a winding on a former constructed of two insulating materials arranged so that the thermal expansion of each material acts to keep the inductance constant. The endchecks of the former may be constructed of material known under the registered Trade Mark " Bakelite," and the longitudinal spacers of that known under the registered Trade Mark " Keramot." the relative coefficients of expansion with temperature of the materials being such that the value of the inductance wound thereon remains constant. The length and diameter of the winding itself may also be arranged partially to compensate for temperature changes, and the coefficient of expansion of the coil conductor is approximately the same as that of the material constituting the end-cheeks. In one arrangement, Fig. 4, the end-cheeks 14 are of " Bakelite " and the spacing strips 16 of " Keramot." In a multi-layer coil, Fig. 5, the spacing strips 25 are carried on bars 24 of " Bakelite " and this set of strips may also be constructed of " Bakelite." Specification 297,787, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-795703-A (GB)
Title: Multiple band tuning devices for radio receivers
IPC: H03J5/06
Filed: 1955-12-15
Abstract: 795,703. Radio receiving apparatus. SYLVANIA ELECTRIC PRODUCTS, Inc. Dec. 15, 1955 [Dec. 15, 1954], No. 36059/55. Class 40 (5). In a tunable television receiver comprising a V.H.F. tuning section which selects channels between 54 and 216 Mc/s. and a U.H.F. tuning section which selects channels between 470 and 890 Mc/s., there is provided a single tuning- control shaft which is so geared to the two tuning sections that on rotation of the shaft from one extreme position to the other, the two tuning sections are brought into operation and then tuned through their complete ranges in sequence, whereby the receiver is tuned, in one continuous operation, through all the channels which it is capable of receiving. In the embodiment described, the V.H.F. section comprises a 13-position switch, the first twelve positions of which correspond to the twelve V.H.F. channels, while the thirteenth position operates to switch the V.H.F. section off and switch on the U.H.F. section which is of the continuously-variable type, subsequent movement of the tuning shaft beyond the thirteenth position controlling the tuning of the U.H.F. section. The main tuning shaft 34 has secured thereon a gear wheel 42 which engages with a gear wheel 46 mounted upon the shaft 51 so that rotation of the shaft 34 in a clockwise direction causes gear segment 48 and friction disc 50 to rotate in an anticlockwise direction. The V.H.F. tuning section 12 is operated by rotation of shaft 16 which is driven by gear wheel 52, itself driven by the gear segment 48. In the position shown the receiver is tuned to the low-frequency end of the V.H.F. band; on rotation of the shaft 34 clockwise the shaft 16 is rotated clockwise until when the end 48a of gear segment 48 engages the gear wheel 52 the shaft 16 has been turned to its thirteenth position so that the V.H.F. section has been switched off and the U.H.F. section 14 rendered operative. Simultaneously, Fig. 3 (not shown), the end 48b engages the gear segment 54 so that on further rotation of the shaft 34 the tuning shaft 26 for the U.H.F. section commences to be rotated in a clockwise direction. The gear segment 54 is provided with stop 56 which engages the disc 50 at the high-frequency end of the U.H.F. band and with stops 60 and 62 which engage the disc 50 at the low-frequency end of the U.H.F. band and prevent rotation of the gear 54 during operation of the V.H.F. section of the receiver. Fine control of tuning is effected by rotation of shaft 36 which lies within the hollow shaft 34. Gear wheel 70 mounted on shaft 36 engages gear wheel 80 with which rotate the rotor 76 of a fine tuning condenser forming part of the V.H.F. tuning section and a drum 78 which is coupled by a cord drive with a wheel 82 mounted on the shaft 26 of the U.H.F. tuning section. During V.H.F. reception the shaft 26 is unable to rotate and consequently the cord slips when the fine tuner is operated; during U.H.F. reception the fine tuner still operates upon the rotor 76 but the circuit of which it forms part is non-operative.
Patent GB-871353-A (GB)
Title: Power transmission positive drive belt mechanism
IPC: F16H7/02
Filed: 1958-11-12
Abstract: 871,353. Endless conveyers. HIRST, T. E. C. Nov. 3, 1959 [Nov. 12, 1958], No. 36306/58. Class 78 (1). [Also in Group XXIV] A positive driving or conveyer belt comprises one or two flexible steel strips 1 looped at periodic intervals around transverse pins 4 and retained therein by split cylindrical spring clips 3 to form driving projections engageable with corresponding depressions on the driving and driven members. A head on one end and a washer on the other end of each pin 4 serve to retain it transversely of the belt and to guide the belt over the driving and driven members.
Patent GB-391728-A (GB)
Title: Improvement relating to pit props
IPC: E21D15/12
Filed: 1932-12-23
Abstract: 391,728. Mine props. BEDFORD, J. W., 40, West Lane, Old Brumby, Scunthorpe, Lincolnshire. Dec. 23, 1932, No. 36444. Addition to 367,581. [Class 20 (ii).] An improvement of the pit-prop described in the parent Specification comprises the use of a spring instead of a crossbolt to maintain the locking plunger in operative and inoperative positions. The plunger 14 is provided with a recess 34 in which is held an acorn-shaped spring 41 adapted to be supported in two positions on the sleeve 39 of a bolt 35, the neck of the spring snapping over the collar as the plunger is raised and lowered.
Patent GB-1400857-A (GB)
Title: Welding
IPC: H05K13/06
Filed: 1972-08-04
Abstract: 1400857 Welding by pressure STERLING ELECTRONIC CORP 4 Aug 1972 [12 Aug 1971] 36452/72 Heading B3R Apparatus for welding an insulated conductor to a workpiece comprises upper and lower aligned electrodes adapted to be urged together at substantially equal forces by pneumatic cylinders 24, 34, means for supplying gas at a first pressure and subsequently at a second, lower pressure to the two cylinders 23, 34, means 12 for supporting the workpiece, e.g. a circuit board 13 having terminal pins 18, between the electrodes and means for feeding the insulated conductor, e.g. insulated conductor wire 27, to the appropriate positions on the circuit board for welding to selected pins 18. The circuit board may be positioned manually or by an X-Y positioner on the table 12 and the wire 27 is drawn from a reel 23 through a central bore through the piston 26 and upper electrode. The pneumatic circuit supplying the cylinders 24, 34 is arranged to supply gas at a low pressure for moving the electrodes into location against the wire and circuit board pins, then at a high or breakthrough pressure to displace the insulation from around the conductor wire so that the wire contacts the pin 18, and finally at a reduced pressure at which welding is effected. Reduction of pressure from the breakthrough level to the welding level may be achieved by leakage around the piston and piston-rod.
Patent GB-449168-A (GB)
Title: Improvements in controlling and stop gear for winding engines
IPC: B66B5/08
Filed: 1934-12-20
Abstract: 449,168. Preventing overwinding. LENNOX, C. O., 92, St. Meddans Street, and BARCLAY & CO. (KILMARNOCK), Ltd., Engine Works, Harbour Road, both in Troon, Ayrshire. Dec. 20, 1934, No. 36510. [Class 78 (v)] Overwinding-preventing apparatus, specially applicable to colliery winding-engines, which first reduces and then cuts off the power to the engine, and also prevents re-starting in the wrong direction at other than slow speed, uses a known type of screw-and-nut stop-gear to actuate a control lever which moves in the same path for each direction of the wind. In the illustrated form a pair of oppositelyrotating screws A, A<1> each carry a traversing nut C adapted to engage a limit stop E and thereby move one or other of a pair of links D, having a pin-and-slot engagement with the power control lever F, so that the latter is moved clockwise to control the engine, eventually cutting off the power in position III. The links D are pivoted at B to the stops E so that they can be raised alternatively by the arms N, N<1> carried by the reversing- lever O. The pin J when engaging the link in the raised position is in line with the horizontal limb H<1> of the L-shaped slot, so that the link offers no obstacle to the free operation of the lever F by the engineman but when engaged with the link in the lowered position it is in the vertical wall of the slot, so that counterclockwise movement of the lever F by the engineman towards the position I moves the link and stop bodily to the left, and thus positions them for actuation by the nut on an overwind. Should the operator stop the engine by bringing the lever F to the position III, after the nut C has begun to operate the link D, but before there is an actual overwind, the engine cannot be restarted in the same direction except at slow speed, as the nut blocks the full movement of the lever F towards position I. By operating the reversing-lever, however, the pin J is re-aligned with the horizontal limb H<1> of the slot, and the full movement of the lever F again becomes possible.
Patent GB-367937-A (GB)
Title: Improvements in or relating to means for securing door knobs or handles to the spindles of mortice and other locks
IPC: E05B3/02
Filed: 1930-12-04
Abstract: 367,937. Attaching knobs to spindles. SCUPHAM & WOOD, Ltd., 21, Mill Street, WOOD, C., 19, Oakwood Avenue, Roundhay, and DODD, A. J., 11, Broomhill Terrace, Hudson Road, all in Leeds. Dec. 4, 1930, No. 36533. [Class 44.] The knob 2 is adjustably secured to the spindle 4 of a lock by a pin 22 passed through registering holes in the spindle and in an end fitting 12 secured on the knob. The pin is retained in place by a rose-plate 19 which covers the ends of the pin when fixed to a door by screws passing through holes 18. The spindle shown is of square section with two sets of holes 9, 10 disposed at right-angles. The fitting 12, shown separate, Fig. 5, has an annular recess receiving the end of the knob between a central boss 15 and an outer portion 17 which is bent inwards at 21 to secure the fitting to the knob. A flange 13 nests in a recess in the roseplate when the latter is attached to the door and prevents removal of the rose-plate from the knob, but permits sliding the rose-plate to the right, Fig. 3, to give access to the pin 22.
Patent GB-908763-A (GB)
Title: A process for the vulcanisation of rubber
IPC: C07D295/26
Filed: 1959-10-28
Abstract: An amine salt of hepta- or octa-hydrosulphuric acid, containing two like aminic functions per molecule and having the formula A2H2S7 or A2H2S8 in which A is an aminic function, is used for vulcanizing natural or synthetic rubber.  Salts of the following amines are specified and their preparation is described (see Group IV(b)):-mono-ethanolamine, diethylamine, triethylamine, di-isopropylamine, di-n-butylamine, tertiarybutylamine, cyclohexylamine and its N-methyl and N-dimethyl derivatives, dicyclohexylamine, benzylamine, n-dodecylamine, pyrrolidine, N-methyl pyrrolidine, piperidine, hexamethyleneimine, morpholine, N,N1-diphenyl and N,N1-di-o-tolyl guanidine.  The amine salt may be mixed with sulphur, titanium dioxide, zinc oxide, clay, siliceous chalk, magnesia, silicic acid, a silicate, e.g. a zeolite, carbon black, stearic acid, a mineral oil, paraffin wax, wool fat, benzothiazyl-2-dicyclohexyl sulphonamide, phenyl-a -naphthylamine, the butyl ester of methylene-bis-thioglycollic acid, zinc diethyldithiocarbamate, sodium methylene-bis-naphthalene sulphonate, tetra-methyl thiuram disulphide and mercaptobenzthiazole.ALSO:An amine salt of hepta or octa hydrosulphuric acid, containing two like aminic functions per molecule and having the formula A2H2S7 or A2H2S8 in which A is an aminic function, is prepared by passing hydrogen sulphide through a solution of an amine in an aliphatic alcohol of low molecular weight, e.g. at a temperature between 10 and 50 DEG C., in which sulphur, preferably a stoichiometric amount thereof, is suspended.  Specified amines are: mono-ethanolamine, diethylamine, triethylamine, di - isopropylamine, di-n-butylamine, tertiary-butylamine, cyclohexylamine and its N-methyl and N-dimethyl derivatives, dicyclohexylamine, benzylamine, n-dodecylamine, pyrrolidine, N - methyl pyrrolidine, piperidine, hexamethyleneimine, morpholine, N,N1-diphenyl and N,N1-di-o-tolyl guanidine.  Specifie aliphatic alcohols are: methyl, ethyl, isopropyl and tertiary butyl alcohol.  Amine salts, according to the invention, are used for vulcanising rubber (see Group IV(a)).
Patent GB-822127-A (GB)
Title: Stabilized multivitamin compositions containing vitamin b
Inventor: NEWMARK HAROLD LEON
Filed: 1957-11-25
Abstract: An aqueous multivitamin solution containing 0.5-25 mcg. of Vitamin B12 per ml., at least one other vitamin normally incompatible with Vitamin B12, and as a stabilizer, an iron compound in an amount sufficient to provide 15-2500 mcg. calculated as atomic iron per ml. of solution.  Specified vitamins are Vitamin A, B1, B2, B6, C and E, niacinamide, and pantothenol.  Specified iron compounds are iron peptonate, ferric ammonium citrate, ferric chloride, ferrous gluconate, ferric glycerophosphate, ferrous sulphate, ferric sulphate, ferric oxide, and ferrous and ferric complexes of ethylenediamine tetra-acetic acid and its salts.  The solution may incorporate a complexing or sequestering agent such as ethylenediamine tetra-acetic acid, ethylenediamine beta-ethanol triacetic acid, d-saccharic acid, pyrophosphoric acid, hexametaphosphoric acid, tripolyphosphoric acid, lactobionic acid, tartaric acid, citric acid, dextran, algin, cyanides or ferro- or ferricyanides.  Other compounds which may be present are choline chloride, glycerol, propylene glycol, polysorbate 80, polyoxyethylene sorbitan monolaurate, butyl parahydroxybenzoate, sodium benzoate, benzyl alcohol, sodium citrate, citric acid, methyl para-hydroxybenzoic acid, gentisic acid ethanolamide, carboxymethylcellulose, inositol, saccharin, sugar and oil of lemon.
Patent GB-1434197-A (GB)
Title: Rotary percussion drill bits
IPC: E21B10/58
Filed: 1972-08-05
Abstract: 1434197 Cutter inserts WICKMAN WIMET Ltd 3 Aug 1973 [5 Aug 1972] 36679/72 Heading B3C [Also in Divisions E1 and B4] An insert for a rotary-percussive drill bit comprises a body of circular cross-section having a pair of complementary inclined flats 3 forming a chisel edge 4 inclined to the longitudinal axis of the body and of a length less than the diameter of the body. As shown, the two flats 3 are joined by a segmental surface 5 of a cone. The segmental surface 5 may be replaced with a flat to give two extra chisel edges formed by the junction with the flats 3. Such inserts may be inserted into a truncated conical surface of the bit so as to be inclined to the axis of rotation.