baber/WOPTO huggingface dataset:
Patent GB-1204405-A (GB)
Title: Method for supplying electricity to a heat-generating pipe utilizing skin effect of a.c.
IPC: H05B6/10
Filed: 1968-03-22
Abstract: 1,204,405. Pipeline heater. CHISSO CORP. 22 March, 1968 [22 March, 1967], No. 14030/68. Heading H5H. [Also in Division H2] A system comprising an A.C. source, a load, a body to be heated and at least one ferromagnetic pipe for generating heat when current passes through it includes switching means whereby the pipe or the load may be selectively connected to the supply. The body to be heated may be a pipeline 22 used to transport oil from a sea bed oil well which is heated by three ferromagnetic pipes 1, 2, 3 disposed in heat transfer relationship with the pipeline 22. Through the pipe 1 are situated three conductors 4, 4<SP>1</SP>, 4<SP>11</SP> and through the pipes 2, 3, conductors 5, 6, respectively. The conductors 5, 6 are connected to the pipes 2, 3 at the ends 14, 16 and to two of the phases of a three-phase supply 20 by switches 9, 10. The conductors 4, 4<SP>1</SP> ,  4<SP>11</SP> are connected to the third phase of the supply 20 by a switch 18 and to the end 12 of pipe 1 by a switch 7. The remaining ends 13, 15, 17 of the pipes are connected to the neutral point 19 of the supply 20. With switches 9, 10, 7, 18 closed current flows along conductors 4, 4<SP>1</SP>, 4<SP>11</SP>, 5, 6, returning to the neutral 19 by way of pipes 1, 2, 3. Heat is thus generated in the pipes 1, 2, 3 by currents which flow along the inner surfaces of the pipes due to the so-called skin effect, the heat being transferred to the pipeline 22 thereby heating the contents thereof. When the contents are warmed sufficiently switches 9, 10, 7, 18 are opened and switch 8 closed whereupon a load such as a three-phase pump motor 11 is energized by the supply 20, the motor then being used to pump the liquid oil along the pipeline 22. A transformer 21 in the circuit of the pump motor 11 may be provided with a tertiary winding to energize a relay which may be associated with the switch 7 thus automatically opening the switch 7 when the pump motor is energized.
Patent GB-628338-A (GB)
Title: Improvements relating to gas purifying apparatus
IPC: C10K1/22
Filed: 1947-05-27
Abstract: 628,338. Gas purifiers. CARR, W. M., and LITLER, F. May 27, 1947, No. 14042. [Class 55 (ii)] [Also in Group XXVIII] In gas purifying apparatus comprising trays b of a cleaning agent, each tray b has a portion of a foul gas distribution pipe h built into it to allow gas flow between upper and lower masses of the cleaning agent. A wall of each tray b has grids g carrying the cleaning agent and allowing gas outflow to a casing a from which it is delivered to a main o. Stacks of trays b comprising two superposed trays b are placed side by side, spaced from one another and from the casing a.
Patent GB-773835-A (GB)
Title: Method and device for facilitating control of the feed of tobacco to cigarette-making machines
IPC: A24C5/39
Filed: 1955-05-16
Abstract: 773,835. Pneumatic conveyers. KORBER, K. May 16, 1955 [June 4, 1954], No. 14046/55. Class 78 (1). [Also in Groups VI and XXXVII] Operative suction, when established in a feed conduit 7, Fig. 1, between a tobacco supply table 8 and the opener 11 of a cigarette-making machine, actuates an optical and/or acoustic signal 9. As shown, the arrangement is duplicated, two openers being fed from a double table 8 through conduits 7, 7<SP>1</SP> to opener delivery trunks 10, 10<SP>1</SP> connected by conduits 13, 131 and a joint conduit 14 to a fan 2 discharging to atmosphere via a filter 5. When feed to a selected trunk, e.g. 10, is desired, a flap valve 15a in the corresponding conduit 13 is moved over, e.g. electromagnetically, by hand operation of a switch on the corresponding machine and closes a vent 16 whilst the consequent suction in the conduit 7, as well as closing a trunk exit flap 18, Fig. 5, acts via a branch pipe 20, Fig. 3, adjacent the table 8 to overbalance a flap-ended lever 21 and cause an insulator 26 thereon to close electrical contacts 28 and complete a transformer secondary circuit 31 including a lamp 9 which may have an electro-acoustic signal device in parallel therewith. Additionally, the lever 21 may mechanically operate a gong. Tobacco is now fed by hand to the conduit 7 and retained in the trunk 10 by an entry sieve 34 to the conduit 13 until sufficient has been collected to operate a feeler (not shown) which opens by electrical means the valve 15, whereupon the lamp 9 is extinguished to indicate that feed should be suspended and the exit flap 18 opens to transfer the fed tobacco to the opener 11. This operation is repeated until the opener is full when the corresponding machine is started and the tobacco level in the opener is thereafter maintained by automatic timed operation of the machine switch.
Patent GB-623909-A (GB)
Title: Improvements in sidecar chassis for use with motor cycles
IPC: B62K27/02
Filed: 1947-05-27
Abstract: 623,909. Spring suspensions ; vehicle underframes. V. P. SHEET METAL, Ltd., YOUNG, R. W., and JENKINS, H. L. May 27, 1947, No. 14101. [Class 108 (ii)] A spring suspension for a sidecar chassis comprises a torsion bar having one end connected to the wheel stub axle and the other end adjustably connected to the chassis frame. A tube 12 forming part of the chassis and disposed parallel with, and transversely of, a transverse tubular chassis member 1, is rigidly connected at its end nearest the cycle, to an adjusting lever 20 and at its opposite end, to a lever 18, connected through a link 17 to a lever 16. The latter is pivoted at one end on a spindle 15 passing through the top corner of a triangular-shaped box member 14 which also connects together the tubes 1 and 12 at their ends nearest the wheel 3 of the sidecar. The other end of the lever 16 carries a stub axle for the wheel 3. The angular position of lever 20 is adjustable by means of a hand wheel 41, Fig. 6, on a screwed rod 21, passing through the end of the lever and pivoted to the tube 1. In a modifiction (Fig. 7, not shown), the lever 16 is forked and is provided with bushes which may be of the porous type to form a bearing on the spindle 15 which is extended on each side of the triangular box member 14. In a further modification (Figs. 9, 10 and 11, not shown), the forked lever is built up from pressed sheet metal members by welding and is provided with similar bushes for bearing on the pivot spindle. The torsion bar tube 12 may alternatively be arranged in front of the tube 1 or above it In the latter arrangement, the lever carrying the stub axle is secured directly to the end of the torsion bar and the box member 14 is replaced by a member of simple construction. The sidecar chassis may be of metal girder, sheet metal, composite or other construction. In this case the torsion bar 19 is located adjacent a transverse frame member.
Patent GB-743684-A (GB)
Title: Harvester for beets and similar root crops
IPC: A01D25/04
Filed: 1953-05-20
Abstract: 743,684. Harvesting root-crops. OPPEL, H. C. May 20,1953 [Oct. 10, 1952], No. 14185/53. Class 6 (3). A beet-harvester, of the type wherein cooperating mutually-inclined skeleton wheels 10, 11 enter the ground to grip the beets and to eject them from the ground on to a conveyer 17, is characterized in that the wheels are resiliently mounted relatively to their hubs 21, 22 so that they can yield slightly on accidentally gripping rocks. The hubs rotate freely on shafts 15, 16 mounted on a bracket 14 on the frame of the machine and are held on the shafts by nuts 25, 26 passing through clearance holes in the wheels. The beet-gripping fingers 20 are integral with the recessed centre portions 23 of the wheels, each of which is held in contact with its hub by bolts 27 passing through a spring plate 28, the portion 23 being tapered towards its centre to enable it to rock slightly should an unyielding object be gripped by the fingers 20. The fingers 20 taper towards their tips and have sharp chisel-like ends for cutting trash.
Patent GB-234850-A (GB)
Title: Improvements in integrating mechanism for float and bell fluid pressure gauges
IPC: G01F1/37
Filed: 1924-11-04
Abstract: 234,850. Conte, M. Nov. 22, 1923, [Convention date]. Integrating. - Relates to apparatus of the type in which a differential pressure gauge rotates a cam while an integrating device operated at regular intervals of time is controlled by an oscillating feeler the length of the stroke of which is dependent upon the position of the cam, the movements of the integrating device actuating a counter, and consists in causing the lever to move towards the cam by electric current pulsations in an electromechanical device controlled by switch apparatus actuated preferably by an electric clock. A rod 8 moved by the gauge is connected to a chain passing over a wheel 12 on a spindle 14 to a counterweight 13. On the spindle 14 is a pointer 15 moving over a scale 16, and also a cam 33. An electric clock 27 sends current impulses at regular time intervals to an electromagnet 28 in the field of which is mounted to rotate an armature 29 carrying a long arm 30. The arm is thus swung down at regular intervals to contact with the cam 33 being returned against a stop 31 by a counterweight 32. The arm actuates a counter 34 through a one-way drive operative on the forward stroke only. The lever is damped by a dash-pot 36. The profile of the cam is determined in such a way that regularly increasing values shown upon any desired scale in the indicator correspond to deviations of the lever according to a constant scale, thus permitting an uneven scale on the indicator without affecting the integration adversely.
Patent GB-416442-A (GB)
Title: Improvements in and connected with apparatus for use with high speed or heavy load elevators, hoists, and/or the like
IPC: B66B11/06
Filed: 1933-05-18
Abstract: 416,442. Lifts. JOHNSTON, R., 4, Hillside Street, Moorpark, Stevenston, Ayrshire, and SESAME DOORS, Ltd., 68, Gordon Street, Glasgow. May 18, 1933, No. 14351. [Classes 78 (ii) and 78 (v).] Lifts are worked by one or more units each comprising a starter electric motor A and a driver electric motor B geared together by a variable-speed belt L and pulleys M, M<1>, M<2>, M<3>. The pulleys are controlled by a solenoid T acting through rods U and levers V gradually to change the gearing between the starter A and driver B from low to high, the starter A being switched out when the driver has attained its full speed. Fig. 3 shows two such units driving through worm gearing P, P<1> two winding drums C, C<1> which are geared together at N, N', N<2>, N3 to rotate in opposite directions. Each end of the lift cable H is attached to a drum C, C <1>, the bight passing round an adjusting pulley D on the lift. When one unit only is employed, one end of the cable is anchored and the cable passes over two pulleys, one of which is geared to the drum C by wheels N, N<1>, N<2>, N<3>. In each case the two drums, or the drum and driven pulley, are spaced apart sufficiently far for the pulley D, with its supporting brackets, to rise between should the lift fail to stop at its uppermost platform level, thus bringing the mechanism to rest by the opposition of the tensioned cable.
Patent GB-990393-A (GB)
Title: Improvements in and relating to ª‡-amino-amide hydrohalides
IPC: C07D295/15
Filed: 1962-04-13
Abstract: a -Amino acid amide hydrohalides are prepared by dissolving an a -aminonitrile of formula <FORM:0990393/C2/1> or <FORM:0990393/C2/2> where R1 is hydrogen, alkyl, hydroxyalkyl, mercaptoalkyl, alkoxyalkyl, alkylthioalkyl, aryl, aralkyl, haloaryl, hydroxyaryl, hydroxyaralkyl, mercaptoaryl, arylthio, alkylthio or heterocyclic; each of R2 and R3 is hydrogen or alkyl, alkenyl, alkynyl, alkadienyl, alkapolyenyl, aryl, aralkyl or alkaryl of up to 20 carbon atoms; R4 is (CH2)n, where n is 2-5, C2H4OC2 H4, C2H4SC2H4, C2H4NHC2H4, CH2NHCH2 CH2CH2, or CH2NHCH2NHCH2; or an inorganic acid salt of such a compound; and a saturating amount or at least 20% by weight, based on the nitrile, of HCl, HBr or HI, in an alcohol solvent which is a C3-7 secondary alcohol unless the a -C of the nitrile is disubstituted or the nitrile is branched at the b -C, in which case the alcohol is a primary C1-7 alcohol; maintaining the solution at 0 DEG -100 DEG  C. for up to 24 hours, and recovering the a -amino acid amide hydrohalide.  Suitable alcohols are listed. Examples prepare the hydrochlorides of valinamide, glycinamide, alaninamide, leucinamide, phenylalaninamide, a  - methylalaninamide, a  - aminobutyramide, norvalinamide, isoleucinamide, phenylglycinamide, p - chlorophenylglycinamide, serinamide, O - ethylserinamide, methioninamide, sarcosinamide, N-(carboxamidomethyl) morpholine and a -methyl - a  - phenylglycinamide, and valinamide hydrobromide.  The halides corresponding to the alcohol used may be obtained as by-product, e.g. ethyl chloride is so obtained.
Patent GB-885400-A (GB)
Title: Cast metal pipes
Inventor: KAIN COLIN HOWELL
IPC: B21C37/28
Filed: 1959-04-28
Abstract: 885,400. Junction pieces. NATIONAL STEEL FOUNDRY (1914) Ltd. July 19, 1960 [April 28, 1959], No. 14422/59. Class 99(1). [Also in Group XXII] A pipe, pipe bend or pipe fitting is made by welding two minor image metal castings together. The castings 1 and 2 have bevelled mating edges 3, 3a, 4, 4a to form welding grooves The castings are welded by forming tack welds 5 on the inside filling the groove with weld, cutting back the root of the weld to form a recess 8 and filling the recess 8 with weld. The welded assembly or the welded zones may be stress relieved by heat treatment or by expanding by internal pressure. Alternatively the welds may be formed by the " Thermit " (Registered Trade Mark) process or by pouring molten steel into a mould surrounding the pipe. The mould is of refractory insulating material preheated with fuel or electricity or made by exothermic material.
Patent GB-1421928-A (GB)
Title: Apparatus for measuring the speed and direction of a liquid flow
IPC: G01P13/02
Filed: 1973-03-26
Abstract: 1421928 Measuring speed and direction of fluid-flow electrically VOGELBUSCH GmbH 26 March 1973 14504/73 Heading G1N Apparatus for sensing the speed and direction of flow of a current of fluid comprises a flow body 1 carried by an element 5 mounted for pivoting freely on a fixed support 4 about a first and vertical axis 3 the flow body being pivotally mounted by supports 6 to the element 5 for pivoting freely about a second and horizontal axis 2 the flow body having an impeller 16 carrying a conductive sector 20 which acts with coils 17, 18 and oscillator 21 to sense the speed of fluid-flow; the flow body further including a primary coil 11 A.C. energized by the oscillator and generating an e.m. field sensed by the secondary coil 12 carried on the upper part 8 of the fixed support to provide a voltage indicative of the elevation angle of the flow body, the part 8 carrying two secondary coils 14, 15 spaced by 90 degrees relative to the first axis and sensing an e.m. field from primary coil 13 on the element 5, the voltages from the secondaries 14, 15 providing a measurement of the azimuth angle of the flow body, which body is shaped to adopt a predetermined orientation with respect to the direction of flow of a current of fluid flowing thereover.
Patent GB-494030-A (GB)
Title: Improvements in or relating to the preparation of pigments containing zine oxide
IPC: C09C1/04
Filed: 1937-05-25
Abstract: The yellow colour of zinc oxide or pigments containing not less than 60 per cent zinc oxide, obtained by heat treatment and oxidation of zinc compounds, is discharged by treatment with an aqueous solution of zinc sulphate, sulphuric acid, or sodium or potassium bisulphate. Oxidized lithopone and zinc sulphide may be similarly treated to decolourize them but in these cases the basic zinc content of the treated pigment (reckoned as oxide) must not be less than 2 per cent. In examples relating to the treatment of lithopones containing zinc oxide, the pigment is boiled with a 2 or 5 per cent solution of zinc sulphate or with a 1,5 per cent sulphuric acid solution.  Zinc oxide obtained by calcination of zinc carbonate may be boiled with a 5 per cent solution of zinc sulphate for 15 mins. or be treated cold with such a solution for 20 hrs.  The pigment may be ground into a paste with the treating solution.  According to the Provisional Specification, sulphates of ammonia, aluminium, or cadmium may also be used for the decolourizing treatment.
Patent GB-1408208-A (GB)
Title: Magnetic blast alternating current circuit interrupter comprising a rectifying arc estinction circuit
IPC: H01H33/18
Filed: 1973-03-27
Abstract: 1408208 Arc-rupturing in switches MERLIN GERIN 27 March 1973 [28 March 1972 18 Dec 1972 6 Feb 1973] 14737/73 Heading H1N An alternating current circuit interrupter has main contacts 24, 26 to draw an arc, magnetic blow-out means providing a unidirectional magnetic field 36 to drive the are towards or away from an electrode 34 depending on the instantaneous arc current direction, and a rectifying shunt circuit 16 connected to the electrode 34 and having a conducting sense corresponding to the direction of the are current when the arc is driven on to the electrode 34. The shunt circuit may comprise series diodes 18 and a silicon controlled rectifier 20 controlled by a trigger device 23 connected to a current sensing device 25. The trigger device renders the rectifier 20 conducting shortly before the end of the appropriate half cycle so that the circuit 16 shunts the arc portion between the electrode 34 and contact 26 and extinguishes that portion, the other portion of the arc being extinguished at the subsequent current zero. The magnetic blow-out may be provided by permanent magnets or by blow-out coils supplied with rectified current. Figs. 4 to 12 (not shown) illustrate various arrangements of contacts, are-runners and blow-out magnets. Two electrodes and two shunt circuits may be provided, Fig. 13 (not shown). Alternatively one shunt circuit may be associated with a plurality of electrodes to enable interruption on either half cycle, Figs. 14 and 15 (not shown).
Patent GB-278409-A (GB)
Title: Improvements in or relating to embossing machines
IPC: B44B5/00
Filed: 1926-06-11
Abstract: 278,409. Baker, F. S., Richards, J. L., and Hydro-Press Machines, Ltd. June 11, 1926. Sheet-regitering devices.- A type-alignment bar 20 for use in cutter-crush embossing-machines is formed of less thickness than the type 22 so as to prevent its being pressed into the cardboard 24, and is provided at each end with a pin 21 adapted to engage spaced holes 19 along the edges of the platen 13, the pins being displaced from the centre line of the bar so that by turning the bar end for end two positions of adjustment can be obtained. In order to facilitate the adjustment of the cardboard 24, the bars 20 situated above the cardboard are spaced therefrom by means of washers 23 placed on the pins 21. One bar 20 however may be allowed to rest direct on, the platen 13 so as to serve as a registering device for the cardboard.
Patent GB-948523-A (GB)
Title: 2-halogenated steroids of the pregnane series
IPC: C07J75/00
Filed: 1961-04-24
Abstract: The invention comprises steroid compounds of the general formula: <FORM:0948523/C2/1> wherein R represents an alkyl radical containing less than 7 carbon atoms, X represents a halogen, and Y represents hydrogen or a halogen atom or a methyl group.  The 2a -bromo- and 2a -chloro-6-methyl-4, 6-pregnadiene compounds of the above formula may be prepared by the required 17a -alkanoyloxy- 2-unsubstituted- 4, 6-pregnadiene-compounds with the required cupric halide in a suitable ionic solvent such as methanol, or with a solution of the required free halogen in a suitable solvent mixture such as acetic acid-chloroform. The 2a -bromo- 6-methyl- 4, 6-pregnadiene compounds may also be prepared by treating the required 17a -alkanoyloxy -2- unsubstituted -6- methyl -4- pregnene compounds with bromine.  The 2a -iodo -6- methyl- -4, 6-pregnadiene compounds of the above general formula are prepared by reacting the corresponding 2a -bromo compounds with sodium iodide. The 2a -fluoro -6- -methyl compounds of the above general formula are prepared by condensing the required 17a -alkanoyloxy-pregna- -4, 6-diene -3, 20-diones with diethyl oxalate to form the corresponding 2-ethoxalyl-compounds and treating these compounds with perchloryl fluoride in methanol. The 2a -halo -6- unsubstituted and the 2a -, 6-dihalo compounds of the above general formula are prepared by methods similar to those described above for the preparation of the 2a -halo -6- methyl compounds except the method involving treatment of a 17a -(alkanoyloxy) -pregn -4- ene -3, 20-dione with bromine.
Patent GB-150106-A (GB)
Title: Improved means for the cracking of nuts without thereby crushing the kernels
IPC: A23N5/00
Filed: 1919-06-12
Abstract: 150,106. McKechnie, G. T. June 12, 1919. Cracking nuts.-A machine for cracking nuts has a wheel A mounted in a frame D on a spindle C carrying hammers B with cams M fixed to its periphery at intervals. A counterweighted anvil E swings into position to receive the nuts fed one by one from a shoot G into a casing H and down a further shoot K. The feed and cut-off hoist I is raised by the cam, a nut being then released to fall on the anvil and thereupon cracked by the hammer following. A spring N returns the hoist to its normal position. The anvil is held in the striking position by a spring clip or by other means. The wheel may be operated by hand, foot-treadle, or other means.
Patent GB-855130-A (GB)
Title: Improvements in or relating to extruded plastic strippings
IPC: B29C48/156
Filed: 1956-05-11
Abstract: 855,130. Hand-rails. HERON, A. G. April 29, 1957 [May 11, 1956], No. 14813/56. Class 45. [Also in Groups X, XI, XIII and XXXVI] Two electrical conductors C, C are embedded, during an extrusion process, in a rigid moulding made e.g. of polyvinyl chloride or rubber so that, by connecting a low-voltage electricity supply to them at one end of the strip and joining their other ends electrically, an electric current can be passed through the conductors to raise the temperature of the strip and render it pliable for easy fitment over a bannister rail R.
Patent GB-1082398-A (GB)
Title: Fluid binary counter
IPC: F15C1/12
Filed: 1965-04-07
Abstract: 1,082,398. Fluid binary counters. SPERRY RAND CORPORATION. April 7, 1965 [April 20, 1964], No. 14825/65. Heading G4P. A pulse emitted from a signal source 54 deflects the fluid flow in an inverter 32, from channel 36 in which it was inhibiting NOR gates 24, 26 to channel 34 in which it inhibits NOR gate 30, NOR gate 28 being already inhibited by flow from amplifier 20 in its reset or " 0 " state. Flow from amplifier 22 along channel 42 keeps NOR gate 26 inhibited whilst NOR gate 24 permits flow along channel 41 to change the state of amplifier 20, a pulse then being emitted along output channel 60 to an indicator. When the pulse from the signal source is terminated, flow along channel 36 re-commences, inhibiting both NOR gates 24, 26 but owing to the change of state of amplifier 20, NOR gate 28 is enabled to change amplifier 22, the resultant flow along channel 44 keeping NOR gate 24 inhibited so that, with the next pulse, amplifier 20 is returned to its " 0 " state. The amplifiers, NOR gates and inverter may be such that they are switched from one state to another when the deflecting flow reaches a threshold level, sufficient to overcome the boundary layer effect.