baber/WOPTO huggingface dataset:
Patent GB-1116083-A (GB)
Title: Apparatus for delivering a known weight of a substance
Inventor: WRIGHT BASIL MARTIN
IPC: G01G13/00
Filed: 1964-07-30
Abstract: 1,116,083. Weighing apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 28,1965 [July 30,1964], No. 30206/64. Heading G1W. In an automatic feed weigher, a receptacle 7 is mounted on a tiltable beam 1 which is provided with a counterbalancing means and when a predetermined amount of material has been fed to the receptacle 7 to tilt the beam from an undeflected position means are actuated to return the beam to its undeflected position and to open an outlet of the receptacle 7 for a limited time interval whereby the weighed load is delivered from the receptacle. The counterbalancing means may comprise weights 14,16 and an adjustable magnetic device 15,17, the weight 14 being so provided with a magnet 23 that when the beam 1 tilts due to a predetermined load in the receptacle 7 the contacts of a magnetic reed device 22 are closed thereby to initiate electrical drive of a cam 25. The cam 25 is arranged to bear on a follower 27 which is supported by a lever 11, the lever 11 being so arranged as to restore the beam to its undeflected position before releasing a pinch wire 10 from a flexible tube 8 forming the outlet of the receptacle. The outlet is closed and the drive of the cam 25 is stopped by a switch arrangement when sufficient time has elapsed to ensure the receptacle has discharged all its load, the receptacle then being ready to receive further material. The magnetic device may comprise a magnet 15 mounted on the weight 14 and an armature 17 supported by rollers 18,19, 20 one of which (18) is manually adjustable. The beam 1 may be pivotally mounted on strip hinges 3 and in an alternative embodiment the outlet of the receptacle 7 is provided by a ballvalve (34) Fig. 5 (not shown) actuated by a fixed pin (36).
Patent GB-393310-A (GB)
Title: Improvements in and relating to electric meters
IPC: G01R11/36
Filed: 1931-11-02
Abstract: 393,310. Supply meters. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl-Ufer, Berlin. Nov. 2, 1931, No. 30346. Convention date, Nov. 1, 1930. [Class 37.] An induction meter has its current and voltage cores arranged in a closed magnetic frame without joints which is wholly or partly embedded in moulded insulating material forming the base-plate. The frame has apertures for securing it in the insulating material and supports the meter bearings and brake magnet, the supports having the same coefficient of expansion as the insulating material. The voltage or current core, or voltage core shunts, may be integral with the frame, or the voltage core may be positioned separately by brass packing-pieces in the gap between it and the shunts.
Patent GB-833763-A (GB)
Title: Improvements in valve circuits for pulse shaping
IPC: H03K5/01
Filed: 1956-10-05
Abstract: 833,763. Random electric impulses, classifying. GENERAL ELECTRIC CO. Oct. 5, 1956 [Oct. 6, 1955], No. 30436/56. Class 37. [Also in Group XL (c)] Fig. 1 shows a proportional or scintillation counter in which the counter 13 is energized from a variable voltage source 15 to condition it for operation within a desired counting range the pulse shaper or reverter 11 has an output which increases in amplitude up to a selected level and thereafter decreases in response to the signal applied from the counter 13. Thus by adjusting the discriminator 12 for operation in response to signals at and above a given amplitude level but slightly below the maximum level of signals delivered by the reverter 11, the rate of count circuits 14 function only in response to signals having amplitude levels lying between closely defined limits. As shown in Fig. 2, the pulses from counter 13 are applied to cathode follower stage 16 from the cathode load of which signals are applied via diode RD to the control grid of tube 17 and via delay line LD to its cathode. As shown in Fig. 5, if Ex is the bias applied to the control grid of tube 17 then the anode output voltage Eo will vary as shown, with increase of input voltage Ei. Due to the function of delay line LD and by adjustment of the time constant of the discharge circuit of the grid capacitor K a succession of input pulses as shown in Fig. 8 will produce grid voltages at pulse shaper or reverter tube 17 as shown in Fig. 9 and cathode voltages as shown in Fig. 10. Thus the anode voltage of tube 17, as shown in Fig. 11, will be such that only one pulse EO-2, Fig. 11, will exceed the triggering level of the succeeding discriminator 12. The counting circuit of Fig. 1 will thus only record a count in dependence upon input pulses having an amplitude range falling between certain predetermined limits, as shown in Fig. 12.
Patent GB-240684-A (GB)
Title: Improvements in washing appliances for coal or other granular minerals
IPC: B03B5/62
Filed: 1924-12-22
Abstract: 240,684. Jenkins, T., and Jenkins, J. Dec. 22, 1924. Upward-current classifiers.-Washing apparatus for coal and other granular materials comprises a vertical tube 1 having one or more water inlets 9, 10 near its lower end, and an upwardly inclined branch pipe 3 into which the lighter material passes. A single or double valve arrangement allows the heavier material to be withdrawn at the bottom, the branch pipe 3 leads to a perforated shoot 4, and the main tube may have a contracted portion 1<b>.
Patent GB-153301-A (GB)
Title: Improvements in amplifier connecting apparatus for telephonic installations
IPC: H04B3/20
Filed: 1920-11-01
Abstract: 153,301. Siemens & Halske Akt.-Ges. Oct. 31, 1919, [Convention date]. Thermionic relays and repeaters.-In a thermionic repeater, each line F1, F2 is provided with a speech-current amplifier R1, R2 in a normally inoperative condition, and with a control amplifier R<1>1, R<1>2. Under the influence of incoming speech currents over the line F1, the amplifier R<1>1 operates to bring the speech-current amplifier R, to an operative state, but reduces the control relay R<1>2 of the outgoing line F2 to an inoperative condition, thus maintaining the amplifier R2 inoperative during the transmission of speech in the direction F1-F2. Similarly, the amplifier R1 is maintained inoperative during transmission in the direction F2-F1. Speech currents arriving over the line F1 are amplified and rectified by the valves R<11>1 and R<1>1, and produce an increased potential drop across an adjustable resistance W1, in the anode circuit of the valve R\. As the grids of the amplifier R1 and of the control valves R<1>2, R<11>2 of the outgoing line F, are connected to opposite ends of the resistance W1, this potential variation results in the amplifier R, becoming operative and the valves R<1>2, R<11>2 being maintained in an inoperative condition. Speech currents are thus amplified by the valve R1, which is arranged to work on the straight portion of its characteristic, but are unable to return through the valve R2. The resistance W1 is shunted by a condenser C, to produce slow voltage fluctuations across the resistance. The speech currents are amplified by the valves R<11>1, R<1>1 to such a degree that for all values of speech current a saturation current flows in the anode circuit of the valve R<1>1 and the potential drop across the resistance W1 is constant. The control amplifiers may be situated away from the speech amplifiers, for instance at the subscribers' stations. In a modification described, a current increase in the anode circuit of a control valve, due to incoming speech currents, is made to operate a contact relay which connects a battery to the grid circuits of the incoming-line speech-current amplifier and the outgoing-line control amplifier to render these operative and inoperative respectively. The amplifiers may also be thrown into and out of operation by connecting or disconnecting the corresponding anode batteries.
Patent GB-193465-A (GB)
Title: Improvements in and relating to washing machine wringers
IPC: D06F45/00
Filed: 1921-11-18
Abstract: 193,465. Bell, G. C. de, and Smith, W. R. Nov. 18, 1921. Mangies and wringers, pressure and rollerseparating arrangements for.-A wringer adapted to be fixed to the tank of the washing machine described in Specification 193,464 is fitted with pressure-adjusting means which allow of quick release of the pressure upon emergency. The lower roller 53 is driven through reversing gear while the upper roller 52 is movable relatively to the lower one and slides in guides 44 at each end. Both rollers are provided with ball bearings, those for the upper roller being contained in blocks which are slidable in the guides 44 and pressed down by levers 66 acting through blocks 64 also slidable in the guides. The levers 66 are loosely mounted on screwed studs 65 and are each provided with ball ends 67, 68 one of which bears on the block 64 while the other bears on a block 63 slidable in a casing 43 and pressed up by a spring 61 which at its other end forces a block 62 against a cam 57. Handwheels 72 screw on the studs 65 and bear upon the lever 66 so that the pressure on the upper roller may be raised. The cams 57 are mounted on a shaft 59 which has at its end a lever 60 which when swung from the position shown turns the cams so as to slacken the springs 61, allow the lever 66 to rock and release the pressure without unscrewing the handwheels 72.
Patent GB-1224532-A (GB)
Title: Radar transmitter
IPC: H03K3/55
Filed: 1968-06-28
Abstract: 1,224,532. Pulse radar; pulse amplitude modulation. WESTINGHOUSE ELECTRIC CORP. 28 June, 1968 [18 July, 1967], No. 30931/68. Headings H3R and H4D. A coherent radar transmitter comprises a travelling wave tube (T.W.T.) 10 and a cross field amplifier (C.F.A.) 12, the T.W.T. being gated on at predetermined times and its output feeding into the pulsed C.F.A. The beam power supply for the T.W.T. is provided from a single D.C. source 14 utilized also for the pulse energy of the C.F.A. Capacitor 24 charges to the requisite T.W.T. beam voltage, diode 22 preventing discharge back through the power supply. A pulse for the C.F.A. is generated by a modulator including a thyratron 42, diode 28, network 30 and a transformer 38. A stable R.F. source 46 supplies the T.W.T. and the latter produces an output only when turned on by a signal to its grid 52; the driver 54 and thyratron 42 are synchronized. Phase-coherent radar pulses ensue for a moving-target system. The modulator may utilize a silicon controlled rectifier and saturable reactor, Fig. 2 (not shown).
Patent GB-334418-A (GB)
Title: Improvements in and relating to processes of pickling metals and to materials used therefor
IPC: C23G1/06
Filed: 1929-10-11
Abstract: 334,418. Barrett Co., (Assignees of Cole, P. J., and Banta, C.). Oct. 31, 1928, [Convention date.]. Pickling.-An inhibiting agent of the general formula RCN where R represents an aromatic radical is added to dilute inorganic acids to form a bath for pickling metals. The acid may be hydrochloric or sulphuric acid and the inhibitor benzo-, toluo-, or xylo-nitrile, or alpha- or /3-naphthonitrile, the preferred bath consisting of 0.02 per cent by volume of alpha-naphthonitrile in 5 per cent sulphuric acid. For use at high temperatures, e.g. 205‹ F, the proportion of inhibitor in the bath may be doubled.
Patent GB-174226-A (GB)
Title: Improvements in machines for cutting and slicing grain, seeds, and the like
IPC: B26D1/29
Filed: 1920-11-03
Abstract: 174,226. Birch, W. E., Birch, J., Birch, W., and Birch, J..A. Nov. 3, 1920. Mills and apparatus.-Relates to machines for cutting and slicing cereals, seeds, beans, peas, berries, &c., and of the type in which the grain is fed from a hopper to a rotary drum having peripheral grooves to hold the grains, which are cut by rotary knives working in circumferential grooves in the drum surface. The feed-hopper 1, Fig. 1, and the cutters 3 are arranged so that the grain is taken from the hopper by the upper upwardly-moving quadrant of the drum 2 and carried upwards under the cutters, the cut grain being delivered on the downward movement of that portion of the drum's surface. The drum 2 is formed with circumferential grooves 5 and with longitudinal grooves or recesses 4, Fig. 4, the rear sides 4a of which mav be more or less radial whilst the forward sides 4b may be convex or concave. The drum 2 may consist of a series of discs with intervening smaller discs forming circumferential grooves in which the cutter blades 6 run. The hopper 1 is preferably made in two parts 1<a>, 1<b> bolted together, the rear section being removable; and magnets 10 may be used in the shoot 7 to remove any metallic particles from the grain. A rotary brush 11 driven bv a chain 12 distributes the grain evenly in the grooves of the drum 2. A barrier or wall formed in sections 13 is placed vertically over the top of the drum to hold back any excess of grain from the cutters. Interchangeable horizontal knives 14, Fig. 11, at the bottom of the sections 13 slice any grains that may be standing on end and projecting above the surface of the drum. The sections 13 are threaded on a bar 16 and are pressed upon by adjustable springs 15. The knife drum 3 consists of a series of thin circular blades 6, Fig. 5, with spacing-washers 18 clamped together on a. shaft 19, the washers 18 being chamfered at both sides 20 towards their periphery. The cleaning- blades 21, which enter between the knives 6 at the rear of the drum, are mounted on a shaft 22 and are adjustable by bolts 23. The drums 2, 3 are geared together by spur-wheels, and the drum 2 is driven by gearing from a shaft driven by a belt pulley. The knife grooves 5 in the drum 2 are kept clear by stationary or revolving blades 27 having hooked or clawed ends 28 preferably formed with cutting-surfaces 28<a>. The blades 27 are threaded on a bolt 30 which is slid at each end into an open slot in a plate 31 fixed at each side of the machine and secured therein by a pivoted latch 32. A bolt 33 is passed through holes in the lower parts of the blades 27 and distance-pieces, and the blades are secured in the adjusted position by means of eye-bolts 35 acting at each end of the bolt 33. According to one Provisional Specification, the cleaning-device for the grain drum may be operated by cam action; and, according to both Provisional Specifications, an endless conveyer with recesses on its surface may be used instead of the rotary grain drum.
Patent GB-1092376-A (GB)
Title: Improvements in or relating to beverage vending machines
Inventor: DITCHBURN GEOFFREY NORMAN
IPC: A47J31/40
Filed: 1963-08-07
Abstract: 1,092,376. Beverage making apparatus. DITCHBURN VENDING MACHINES Ltd. Aug. 4, 1964 [Aug. 7, 1963], No. 31102/63. Headings A4D and A4T. In a beverage vending machine, powdered beverage ingredients are prevented from caking under the action of water vapour by a stream of dry air blown downwardly over the mixing or infusing vessel 15. A fan 19 blows air, warmed by electric light bulb 20 through filter 22 into bottomless inner chamber 11, where it prevents water vapour from condensing on shoot 14 and from entering ingredient containers 13.
Patent GB-375677-A (GB)
Title: Improvements in combination furniture
IPC: A47C17/58
Filed: 1931-11-10
Abstract: 375,677. Folding bedsteads. DAVIS, H., 43, Priory Road, Bedford Park, London. Nov. 10, 1931, No. 31127. [Class 52 (ii).] A wardrobe, washstand, or similar article of furniture has a compartment B for receiving a collapsable bed-frame constructed either in interlocking sections which are superimposed when not in use, or, as shown, in foldable sections F, G, H pivotally -connected by links J, K. The head section F has pulleys R which run on rails C attached tb the sides of the compartment, and continued either as at E on doors D, or as separately pivoted members which may have double the length, so as to allow the bedframe to be withdrawn for use. Slots S in the rails limit the motion of the head section F, and pivoted legs T, U support the sections G, H respectively.
Patent GB-817566-A (GB)
Title: A new benzothiazole sulfenamide of a tertiary cycloalkyl amine
IPC: C08K5/00
Filed: 1957-10-04
Abstract: Natural rubber and rubbery butadiene-styrene, butadiene - acrylonitrile copolymers, polyisoprenes and polybutadienes are vulcanized by heating (e.g. to 260 DEG -400 DEG  F.) with sulphur in the presence of a relatively small amount (e.g. 0.1 to 10 per cent of the weight of rubber) of N-(1-methylcyclopentyl)-2-benzothiazolesulphenamide as accelerator. In an example, in which the rubber is smoked sheet, the mix also contains HAF carbon black, zinc oxide, refined pine gum (softener), stearic acid and an antioxidant; in an example, in which the rubber is an emulsion-polymerized butadiene-styrene copolymer, the mix also contains HAF carbon black, processing oil, zinc oxide, stearic acid and phenyl-b -naphthylamine.  The process is particularly applicable to tyres containing furnace blacks (e.g. ISAF and SAF in addition to HAF).  The sulphur may be replaced by a sulphur-donor (e.g. a phenol polysulphide, a xanthogen polysulphide, a thiuram di- or poly-sulphide or an amine polysulphide).ALSO:The invention comprises N-(1-methylcyclopentyl) - 2 - benzothiazolesulphenamide and the use thereof as a rubber vulcanization accelerator (see Group IV (a)).  In an example of the preparation of the compound, sodium hypochlorite solution is gradually added to a stirred solution of 2-mercaptobenzothiazole and 1-methylcyclopentylamine in aqueous caustic soda.
Patent GB-362095-A (GB)
Title: The method of strengthening skins and furs
IPC: A41H41/00
Filed: 1930-10-17
Abstract: 362,095. Furs. ROTH, N., 9, Werderthorgasse, Vienna. Oct. 17, 1930, No. 31178. [Classes 76 and 140.] Furs and skins are strengthened by attaching to the flesh side of the skin a wide meshed fabric by means of a rubber solution. The coating of rubber is made of such thinness that passage of air therethrough will not be prevented, or the rubber may be applied locally by means of a stencil. Small perforations may be made in the rubber-coated skin in order to increase its perviousness to air.
Patent GB-915984-A (GB)
Title: Amine salts of endoxohydrophthalic acids
Inventor: RECK RICHARD AUGUST
IPC: C07D493/08
Filed: 1960-09-09
Abstract: Oil compositions comprise an oil and a salt derived from an unsubstituted or substituted 3,6-endoxo hydrophthalic acid and a primary amine having the amino group attached to a secondary or tertiary carbon atom (see Group IV(b)).  The oil may be a petroleum, animal or vegetable oil, such as tall oils, kerosene, light and heavy lubricating oils and benzine; examples use n-hexane, petroleum ether, 5 S.A.E. motor oil and corn oil.  Reference has been directed by the Comptroller to Specification 692,262.ALSO:The invention comprises salts derived from an unsubstituted or substituted 3,6-endoxohydrophthalic acid and a primary amine having the amino group attached to a secondary or tertiary carbon atom.  The acid may be a di-, tetra- or hexahydro-acid, and suitable substituents are halogen, alkyl, acyl, alkoxy, aryloxy, acyloxyalkyl and nitro. Specified amines are 2-tridecylamine, 2-nonadecylamine, 7-pentadecylamine, 10-nonadecylamine, 12-tricosylamine, 18-pentatricontylamine, 2-tridecenylamine, 12-tricosenylamine, 2-amino-2-methylnonane, 2-amino-2-propyloctadecane, 4-amino - 4 - nonyldocosane, 1 - phenyl - 1 -octylamine, 2 - amino - 2 - (p-aminophenyl)-decane, 4-amino-1-(m - chlorophenyl) - pentadecene, 1-chloro-3-aminobeneicosane, 1-(2,4,6-trichlorophenyl) - 2 - aminoundecane, 1 - amino - 1 - (b -naphthyl)-decane, 1-aceto-3-aminohexadecane and 2-(p-nitrophenyl)-3-amino-3-methylnonane.  These salts are useful as herbicides (see Group VI).  Reference has been directed by the Comptroller to Specification 692,262.ALSO:Herbicidal compositions comprise (i) a salt derived from an unsubstituted or substituted 3,6-endoxohydrophthalic acid and a primary amine having the amino group linked to a secondary or tertiary carbon atom (see Group IV (b)) and (ii) an oil.  The oil may be a petroleum, animal or vegetable oil, such as tall oils, kerosene, light and heavy lubricating oils and benzine; examples use n-hexane, petroleum ether, 5 S.A.E. motor oil, and corn oil.  Reference has been directed by the Comptroller to Specification 692,262.
Patent GB-241757-A (GB)
Title: Improvements in or connected with toasting apparatus
IPC: A47J37/08
Filed: 1924-12-30
Abstract: 241,757. Matteis, A. de. Dec. 30, 1924. Grilling-stoves.-In toasting-apparatus of the type comprising a heating-chamber, heating-elements arranged therein, and a conveyer which carries the slices through the chamber between the heating-elements, means are provided for swinging one end of each element laterally towards or away from the slices whilst the other ends remain stationary. As shown in Figs. 2 and 3, the invention is applied to the apparatus described in Specification 196,856, the slices being fed into hoppers 26, received on the conveyers 51, supported by wires 78, 80 and carried between electric heating-elements 82, 84 which are pivotally supported on vertical axes 85, 86 at one end and supported, at the other end, by right- and left-hand screwed adjusting-spindles 93 having adjustment knobs 102. The spindles 93 are positioned axially by collars 97. The elements may be heated by gas supplied through flexible tubes.
Patent GB-432330-A (GB)
Title: Improvements in or relating to devices for protecting the tread plates of endless tracks for tractors and the like
IPC: B62D55/275
Filed: 1934-10-31
Abstract: 432,330. Endless - track vehicles. LAPORTE, A. J., Bordeaux, France. Oct. 31, 1934, No. 31289. [Class 79 (i)] A removable tread pad 3 secured to a link 1 of an endless track by spring hook means is prevented from movement relatively to the link by means of pins 13 engaging sockets in the link. In the construction shown, the link is provided with the usual rib 2 for engaging soft ground and the pad 3 is formed with integral hooks 11 for engaging one side of the link and with spring-actuated hooks 12 for engaging the other side of the link. The hooks 12 are fixed to a slidable rod 5 controlled by a spring 7, and may be withdrawn, to free the pad 3, by means of a tool inserted in a' hole 14. The pad may be formed as a metal box 3 provided with a rubber tread 18 bolted thereto. Modifications are described in which the hooks 11 are (1) slidable and controlled by springs which may be much stronger than the springs 7, and (2) hinged to the pad 3 and controlled by springs.