baber/WOPTO huggingface dataset:
Patent GB-712743-A (GB)
Title: Improvements in or relating to timing wave generator circuits
Inventor: LAWS CECIL ALFRED
IPC: H03K3/04
Filed: 1949-10-12
Abstract: 712,743. Valve circuits. ELLIOTT BROS. (LONDON), Ltd. Oct. 12, 1950 [Oct. 12, 1949], No. 26257/49. Class 40 (6) Upon initiation of the leading edge of the output pulse of a multivibrator or flip-flop a train of uniformly spaced sharp voltage pulses is generated and superimposed upon the exponential recovery curve of the voltage of at least one of the control grids of the multivibrator or flipflop valves thus accurately determining the position of the trailing edge and thus the duration of the output pulse of the multivibrator. Fig. 2 shows a cathode-coupled flip-flop comprising a double triode valve 1 in which the left hand section is normally non-conducting. Upon application of the positive-going triggering pulse T to control grid G1 the left hand triode conducts the fall in the potential of anode A1 being applied to control grid G2 via diode 2 and capacitor 3 to cut-off the right-hand section. The drop in potential of anode A1 lowers the suppressor grid voltage of pentode 8 so that cathode current is diverted from anode to screen grid and the oscillatory circuit 9 " rings " with substantially no damping. The capacitor 12 is charged negatively during the positive half cycles in which grid current flows in pentode 8 and is charged positively during the negative half cycles when diode 16 conducts. The positive and negative charges substantially neutralize each other so that approximately square voltage pulses are produced across the cathode resistor 17, these are differentiated by network 18, 19. The resulting sharp pulses across cathode resistor 19 appear amplified at anode A1 and are thus superimposed upon the exponentially rising voltage of control grid G2. After a period determined approximately by the setting of resistor 5 one of the superimposed pulses raises the potential of grid G2 sufficiently to render the right hand triode conducting to cut-off the left hand triode and terminate the output pulse Po. The potential of anode A1 rises rapidly to H.T.+ whilst capacitor 3 is re-charged via resistor 4 and the rise in suppressor grid voltage of pentode 8 allows anode current to flow, the resulting anode to grid feedback producing such heavy damping of the tuned circuit 9 that the oscillations are immediately quenched. In a modification, Fig. 4 (not shown), the sinusoidal oscillations from the tuned circuit are not squared but the short rounded positive pulses appearing across the cathode resistor of the pentode are fed directly to the cathode of the flip-flop.
Patent GB-1163343-A (GB)
Title: Wax Compositions
Inventor: KREMER CHARLES JULIUS
IPC: C08L91/08
Filed: 1967-06-07
Abstract: 1,163,343. Wax coating and laminating compositions. ATLANTIC RICHFIELD CO. 7 June, 1967, No. 26373/67. Heading C5W. [Also in Division C3] Wax coating and laminating compositions comprise:- (A) 100 parts by weight of wax, of M.Pt. >120‹ F; (B) 5-150 parts by weight of an ethylenevinyl acetate copolymer of 5-35% by weight vinyl acetate, and of melt index 0À1-1000; and (C) a compatible acid component in an amount sufficient to impart to the composition an acid No. of 5-200, said component containing at least 35% by weight acid and at least 5% by weight liquid, said acid and liquid having a B.Pt. >300‹ F. at 7 mm. Hg and comprising one or more, as necessary, of:- (1) a carboxylic acid which is liquid at 70‹ F., has a viscosity of 500-10,000 S.S.U. at 100‹ F., a molecular weight of 400-2500, and an acid No. >20. (2) a hydrocarbon which is liquid at 70‹ F. and which is (a) an oil of viscosity 300-3000 S.S.U. at 100‹ F., (b) a styrene polymer of viscosity 800-100,000 S.S.U. at 100‹ F. and of M.W. 300-3000, (c) a butene polymer havng a butene content 9#0% by weight, a viscosity of 1000 to 1,000,000 S.S.U. at 100‹ F. and M.W. 300-12,000, or (d) a propene polymer of viscosity 10,000-1,000,000 at 100‹ F. and of M.W. 800-3500; or (3) a carboxylic acid of M.Pt. >70‹ F., having a M.W. 150-1500, and an acid No. >20. Preferably (A) is paraffin (M.Pt. 115- 200‹ F.) and/or microcrystalline (M.Pt. 140- 210‹ F.) wax in an amount either 100% by weight microcrystalline wax, or 20-80% by wt. paraffin wax and 80-20% microcrystalline wax. Other specified waxes are ozocerite, montan, carnauba, candelilla, Japan, beeswax, Chinese and insect waxes, and synthetic waxes including polyhydric alcohol esters, hydrogenated vegetable oils and Fischer-Tropsch waxes. The copolymer (B) is preferably used in an amount 10-35% by weight of (A). The concentration of acid component (C) required to give the specified acid number is generally 10-150% by weight of (A); numerous aliphatic, alicyclic or aromatic acids having one or more carboxyl groups are disclosed, and these may be liquid or solid. In the latter case the liquid component of (C) is provided by the oil, or styrene, butene or propene polymer. A particularly preferred composition contains as acid component a mixture of 70-95% by weight rosin acid and 5-30% by wt. of a dimer of 9,12-octadecadienoic acid or polystyrene. Conventional additives may be included; solid glycol esters of rosin acids are specified as stabilizers.
Patent GB-281444-A (GB)
Title: Improvements in or relating to screw lifting jacks
IPC: B66F3/08
Filed: 1926-10-22
Abstract: 281,444. Steel Nut & J. Hampton, Ltd., and Taylor, E. G. W. Oct. 22, 1926. Jacks. - A screw jack is provided with cooperating means such as a key-hole slot in the body and a grooved handle end to facilitate setting the jack in position. The body 4 of the jack is formed with a key-hole slot 4<a> having a neck 4b adapted to engage a groove 5b formed on the handle 5 in proximity to the squared end 5<a> of the handle. By inserting the grooved part of the handle end into the neck of the slot the handle can be used to position the jack. A square opening may be provided in the body, the handle end being inserted therein and partially rotated to engage it in position.
Patent GB-616471-A (GB)
Title: Improvements in or relating to hydro-extractors
IPC: D21D5/18
Filed: 1946-09-05
Abstract: 616,471. Centrifugal separators. BROADBENT & SONS, Ltd., T., and BROADBENT, F. Sept. 5, 1946, No. 26648. [Class 23] A hydro-extractor basket a is provided with a false bottom c, radial fins h<1> and lifting means for raising, first, the vanes and then the bottom c together with the centrifugal material. The lifting of the vanes allows the material to move slightly from the wall of the basket, usually perforated, and thus facilitate its removal. The vanes are fixed to a sleeve h having a lip h<2> which is engaged by hooks i pivoted to a ring e which is attached by pins f to a handle g. When a collar hx, on the sleeve h, reaches a ring c<2>, a sleeve c<1> and the bottom c are lifted during further raising of the handle. Slots d<1> allow the upward travel of the pins f in a tube d.
Patent GB-519173-A (GB)
Title: Improvements relating to peels for bakers' use
IPC: A21B3/00
Filed: 1938-09-13
Abstract: 519,173. Bakers' peels. HOOPER, J W. Sept. 13, 1938, No. 26696. [Class 28 (i)] For securing a handle B within a recess in the head A of a bakers' peel a metal U-piece is fixed about the inner end of the handle to fit a groove A<1> in the face of the recess in the peel head, the handle being retained against withdrawal from the recess by L-shaped pieces C which by one arm C<1> are detachably secured to the head and by the other arm C<2> engage behind the ends of the limbs of the U-shaped piece.
Patent GB-228501-A (GB)
Title: Improvements in or relating to fuel spraying devices for internal combustion engines
IPC: F02M61/10
Filed: 1924-11-08
Abstract: 228,501. Sulzer FrÞres Soc. Anon. Jan. 24, 1924, [Convention date]. Cylinders receiving liquid fuel.-Fuel supplied under pressure to a chamber c is injected by a spring pressed plunger d through a fluid pressure actuated spraying valve t on the opening of a camcontrolled valve h. The plunger d is lifted by the fuel pressure, and the device is so arranged that injection will cease, and the spraying valve t consequently close, when a flange e on the plunger d comes into contact with the casing b, the valve h remaining open for a slightly longer period.
Patent GB-158336-A (GB)
Title: Improvements in carbureters
IPC: F02M7/16
Filed: 1919-10-30
Abstract: 158,336. Weiland, A. Oct. 30, 1919. Spray carburettors.-Liquid fuel is drawn from a low-level tank into a reservoir 10 by the suction in the intake 12, and means are provided to prevent a gravity-flow from the reservoir when the. suction in the intake is interrupted. The fuel flows from the reservoir 10 through a float-operated valve 25 to a chamber 16 which feeds a chamber 21 connected by a pipe 22 to the jet-chambers 23. The chamber 21 is connected to atmosphere by a pipe 33, so that, when the liquid level in the chamber 21 falls below this pipe, air enters the chamber 16 and allows fuel to flow into the chamber 21. Air, which may be heated by the exhaust, enters the chamber 11 and passes through ports 41. 42 in a rotatable throttle 36 into the intake 12. The fuel passes from the chamber 23 through a port 24 controlled by a needle 46. The needle 46 is carried by a tube 45 attached to a piston in a chamber 50. The upper side of the piston is open to atmosphere and the underside is exposed to the vacuum in the intake 12 through ports 54, 55, so that the intake pressure controls the position of the needle 46 and the supply of fuel through the port 24. When the throttle 36 is closed air flows from the port 41 down through a passage 44 and serves as an auxiliary priming means. The pipe 60 connecting the chamber 10 to the intake 12 opens into a recess 63 into which fuel overflows when the engine stops and seals the pipe 60, thereby preventing the atmospheric pressure in the intake from reaching the reservoir 10.
Patent GB-1022706-A (GB)
Title: Electrolytic apparatus for simultaneous preparation of chlorine and of alkali carbonates
IPC: C25B9/19
Filed: 1964-06-29
Abstract: Electrolytic apparatus for simultaneously preparing chlorine and alkali metal carbonate <PICT:1022706/C6-C7/1> <PICT:1022706/C6-C7/2> comprises a vertical filter diaphragm 2, e.g. of asbestos or plastic such as P.V.C., between a cathode 4, e.g. a wire screen or perforated sheet, and an anode 1, e.g. of graphite, but separated from the active surface of the cathode, e.g. by fixing the diaphragm to an auxiliary screen of insulating material 3, Fig. 1, or to an auxiliary metal screen provided with an insulating and corrosion resistant coating, with CO2 being admitted from the bottom into the catholyte for direct carbonation. Alternatively the asbestos diaphragm 2 may be sucked on to the cathode 4, Fig. 2, provided with an insulating coating 5 on the surface facing the anode 1.
Patent GB-1019810-A (GB)
Title: Internal coating of pipe
IPC: B05C7/04
Filed: 1963-07-05
Abstract: In a method of internally coating a pipe, a pair of spaced-apart inflatable spheroids are inserted into the pipe, inflated sufficiently to form an interference fit with the pipe, the space between the spheroids is filled with a liquid coating material, and sufficient pressure is applied to one of the spheroids to move them through the pipe.  The spheroids may be inflated by air or by a liquid e.g. water.
Patent GB-379881-A (GB)
Title: Improvements in or relating to the control of temperature of refrigerator cabinets
IPC: G05D23/12
Filed: 1931-09-26
Abstract: 379,881. Wick burners. ELECTROLUX, Ltd., 153, Regent Street, London. -(Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm.) Sept. 26, 1931, No. 26881. Convention date, Sept. 27, 1930. [Class 75 (i).] A wick burner employed in refrigerating apparatus is regulated thermostatically by raising or lowering the fuel level by movement of a flexible a i r - admission tube of a fuel feed of the " bird fountain " type. A pressure chamber 13 contains a bellows 14 extended b v a spring 15 and is connected through a tube 17 to a heat sensitive member (not shown) which may contain a liquid such as water or benzol which acts on the bellows on change of state. Movements of the bellows are transmitted' through a lever 39 to a flexible tube 38 terminating in a vessel 33 connected to the wick container 31. Fuel is supplied from a closed vessel 36 through a tube 34 when the end of the tube 38 is uncovered to admit air to the vessel 36. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification, Fig. 1 (Cancelled), in which a spring-loaded bellows subject to the expansion due to change of state of a liquid under temperature changes, and housed in a casing 13, actuates a toothed pivoted segment 22 engaging with a pinion 23 carried by a hollow shaft 25. A spindle 26 passing through the shaft 25 and engaging it by a groove and key, is connected by a known coupling device 28 with the wick adjusting. member 12. The wick is thereby adjusted. thermostatically, and may also be set manually by rotating the spindle 26 by the handle 27. This subject-matter does not appear in the Specification as accepted.
Patent GB-833084-A (GB)
Title: Improvements in or relating to devices for absorbing electro-magnetic wave energy in transmission lines
IPC: H01P1/26
Filed: 1957-08-26
Abstract: 833,084. Transmission line attenuators and terminations. GRUSELL, A. E. Aug. 26, 1957 [Sept. 7, 1956], No. 26862/57. Class 40 (8). A dissipative termination or attenuator for a waveguide, coaxial line or other transmission line comprises a layer of ferromagnetic material covering the operative surfaces of the guide. The material, e.g. iron powder, is mixed with a liquid binder, e.g. " Bakelite," " Araldite " (both Registered Trade Marks) or a silicone lac. The waveguide termination shown is provided with four overlapping layers A, B, C, D to obtain a progressive thickening of the dissipative material. The Figure indicates the shape and dimensions of the layers. Each layer may be applied by providing the waveguide section with a temporary end closure and filling it to the required height with the liquid material, the required shape of the layer being obtained by tilting the section first to one side, then to the other. The liquid is then drained away and the layer allowed to harden before application of the next. The proportion of iron powder may be varied to obtain a greater concentration towards the end of the termination, or, in the case of an attenuator, towards the centre of the attenuating section. Where the layers are applied by a brush or spray the guide section may be divided into two parts to facilitate this operation.
Patent GB-602519-A (GB)
Title: Improvements relating to machinery for trimming wire brushes of the circular type
IPC: B24B27/06
Filed: 1945-10-16
Abstract: 602,519. Grinding wire brushes. WELSH METAL INDUSTRIES, Ltd., and HOBROUGH, P. G. Oct. 16, 1945, No. 26987. [Class 60] A machine for trimming wire brushes of the circular type comprises a rotary cutting disc 4, preferably an elastic grinding disc, which is traversed relatively to the brush 17 which latter is rotated on its axis. The main operations of the machine, i.e. the clamping of the brush, the rotation of its holder and the presentation of the cutter to the periphery of the brush, are effected hydraulically. The brush holder comprises a plate 21a on a pedestal 21 secured to a rotating assembly comprising a hydraulic cylinder 23, a gear wheel 20a thereon, a journal 20 and a piston on a rod 19 to which an upper plate 21b is detachably secured by a U-shaped collar 22. The hydraulic system, which is controlled by a valve-handle 32b, is so arranged that the cylinder 23 is operated to pull down the clamping-plate 21b on to the brush, simultaneously with the operation of a cylinder 18 which slides the disc-carrying headstock 2 along guides 1d to present the disc to the brush. At this moment, the bracket 2e of the headstock-saddle 2a engages an adjustable stop on a rod 29c which is connected to the valve controlling a cylinder 28. The cylinder 23, and the brush 17, are thereupon rotated by the operation of the cylinder 28 which has a rack and pinion coupling 27, 26 with a shaft 25 carrying a wheel 24 meshing with the wheel 20a. During the rotation of the brush, the traverse speed of the headstock 2 is reduced by an adjustable cam 2f on the saddle 2a which acts on a rod or plunger 32a to alter the ports of the valve supplying the cylinder 18. A cam 30 on the shaft 24 contacts with a lever 30a to position the valves of the hydraulic system to reverse the action of the cylinders 18, 23 and to restore the parts to the starting position. The bracket 2e, at the end of its return movement, contacts with another stop on the rod 29c to position the control valve of the cylinder 28 to reverse the action of the cylinder. The disc 4 is set manually, relatively to and according to the size of the brush, by cross-slides actuated by screw and nut means. The headstock 2 carries a motor 13 which drives the shaft 3 of the disc 4 through belting 11, and the disc is enclosed in a housing 16 which is gapped at 16b to permit the disc to operate on the brush. The housing 16 is connected at 16a to a dust extractor.
Patent GB-1268319-A (GB)
Title: Apparatus adjustably positioning filaments during the manufacture of flat multiconductor cable
IPC: H01B7/08
Filed: 1970-06-04
Abstract: 1,268,319. Laminates. THOMAS & BETTS CORP. 4 June, 1970 [12 June, 1969], No. 26988/70. Heading B5N. [Also in Division B3] A laminate comprising a number of generally parallel electrically-conductive filaments or conductors 10 sandwiched between plastics strips 12 is made by feeding the filaments or conductors from roll 5 and guiding them by filament guides to the nip of rollers 7 where they are contacted with the strips 12, the resultant assembly being heated by heater 8 and pressed by rollers 7a. The spacing between the conductors being altered by an apparatus comprising a base 18, cam plates 17 and 35 mounted on a plate 22, an air cylinder 30 for reciprocating the plate 22 on shafts 20, guide fingers 37 each of which has a conductor guide 44 at one end while its opposite end has a pivot pin 41 engaging a slot 43 in the box 18, follower pins 42 engageable with slots 19 in the cam plates and adjustable stop means to limit the travel of the cam plates. To alter the spacing between the conductors 10, a solenoid 56 is activated which frees guide fingers 37 for pivotal movement by raising the cam plate 17 against the action of compression springs 54. The cam plates 17 and 35 are then moved by the cylinder 30 either to the left or right, Fig. 4, to reduce or increase respectively the spacing of the conductors by pivoting the guide fingers 37 about the pins 41 as the pins 42 follow the slots 19. The limit of movement of the cam plates to the left is controlled by the bottoming of the piston of cylinder 30 and movement of the plate 22 relative to jaws 28 by loosening nuts 29 while the movement to the right is limited by belts 70 abutting stops 72. When the desired spacing is achieved the solenoid 56 is released allowing cam plate 17 to hold the guide fingers 37 in the given position.
Patent GB-482831-A (GB)
Title: Improvements in and relating to the cooling of cement
IPC: F27D3/00
Filed: 1936-10-05
Abstract: 482,831. Reducing cements. CLAYTON, C. E. EVERY-. (Ahlmann, N.) Oct. 5, 1936, No. 27016. [Class 59] [Also in Group V] Ready-ground hydraulic cement is treated, during its passage from the grinding mill to a cooler, with air to drive off steam or water vapour. In the apparatus shown in Fig. 1, the ground cement travels along an opentopped trough 1 fitted with rotary stirrers 9 and supplied, through a pipe 4 and nozzles 5, with a small quantity of compressed air. In a modification, the nozzles 5 deliver into chambers covered by porous plates through which the air percolates into the mass of cement in the trough. Fig. 3 shows a further construction in which the cement is delivered from the grinding mill 10 to a chamber 14 supplied through a pipe 16 with air from a compressor 15, the air being admitted after the chamber 14 has been filled and serving to aerate the cement and discharge it through a pipe 17. The latter delivers to a cyclone separator 19 from which the air escapes at 20 and the cement is conveyed by a worm 24 to a cooling device 21. Specification 457,541, [Group XIII], is referred to.
Patent GB-1512411-A (GB)
Title: N-(2,2-difluoroalkanoyl)-o-phenylenediamines processes for their preparation and their use as pesticides
IPC: A01N37/22
Filed: 1975-06-26
Abstract: 1512411 Acylated phenylenediamines ELI LILLY & CO 26 June 1975 27076/75 Heading C2C The invention comprises compounds of the formulµ and wherein R‹ is a radical of the formula in which Y is hydrogen, chlorine, fluorine, difluoromethyl, C 1  to C 6  perfluoroalkyl, or a radical of the formula in which each Z independently is hydrogen or halogen and n is 0 or 1; R<SP>1</SP> is hydrogen, a radical -COOY<SP>1</SP> (in which Y<SP>1</SP> is C 1  to C 4  alkyl or phenyl), benzoyl, furoyl, naphthyl, or substituted benzoyl of the formula (in which each Z<SP>1</SP> independently is halo or nitro, Z<SP>11</SP> is C 1  to C 4  alkyl or alkoxy, p is 0, 1 or 2, q is 0 or 1, and p+q is 1 to 3); R<SP>2</SP> is R<SP>0</SP>, R<SP>1</SP>, C 1  to C 8  alkanoyl, C 3  to C 4  alkenoyl, C 3  to C 4  alkynoyl, or halogenated C 2  to C 4  alkanoyl bearing on any position(s) one or more halogen atoms, subject to the limitation that the alpha position bears at least one substituent selected from hydrogen and halogen of atomic weight from 35 to 127 inclusive; each R<SP>3</SP> independently is halogen; R<SP>4</SP> is nitro; R<SP>5</SP> is trifluoromethyl, difluoromethyl, or difluorochloromethyl, and in compounds of Formula (II), R<SP>4</SP> and R<SP>5</SP> are meta to one another; R<SP>6</SP> is C 1  to C 4  alkylsulphonyl and is in the 4- or 5-position, and any R<SP>4</SP> is meta to R<SP>6</SP>; m is from 0 to 4; n is 0 or 1; and in Formula (I), m+n is 1 to 4; subject to the further limitation that when R<SP>1</SP> or R<SP>2</SP> is hydrogen, the position ortho to the -NH-R<SP>1</SP> or -NH-R<SP>2</SP> group bears one of the R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP>, or R<SP>6</SP> groups. They may be prepared by reacting compounds of the formulµ with an acylating agent of the formula or an active derivative thereof. The compounds of the invention are pesticides and may be used as active ingredients in herbicidal, insecticidal, parasiticidal, arachnicidal, anthelmintic and nematocidal compositions.
Patent GB-191797-A (GB)
Title: The manufacture of a series of substituted alpha-naphthylamines and of the dyestuffsderived from them
IPC: C07D249/22
Filed: 1921-10-12
Abstract: Amino - 1 : 2 - naphtho-p-tolyltriazoles are obtained by coupling 5- or 8-nitro-2-naphthylamine with p-diazotoluene, oxidizing the nitro-2 : 1-aminoazo compound to the corresponding nitrotriazole and reducing the nitro group.  According to examples 5-nitro-2-naphthylamine is coupled with diazotized p-toluidine in alcoholic solution, the azo compound oxidized by chromium trioxide in glacial acetic acid, and the nitro group reduced by stannous chloride; the acetyl derivative of the 5-amino compound is mentioned.  5-and 8-nitro-2-naphthylamines are obtained by adding 2-naphthylamine nitrate to concentrated sulphuric acid at -5 DEG  C. and diluting; they are separated by fractional crystallization of the sulphates.  Azo dyes are obtained by coupling the above described amino-p-tolyltriazoles with diazo compounds or by diazotizing and coupling with phenolic or amino compounds.  In examples the 5-amino-1 : 2-naphtho-p-tolyltriazole is diazotized and coupled with b -naphthol, or is coupled with p-nitrodiazobenzene; the product of the latter reaction yields a bistriazole derivative when oxidized.