baber/WOPTO huggingface dataset:
Patent GB-1500891-A (GB)
Title: Systems for transmitting information in an alternating current electricity supply system
IPC: H02J13/00
Filed: 1974-07-18
Abstract: 1500891 Signalling over power lines GENERAL ELECTRIC CO Ltd 16 July 1975 [18 July 1974] 31964/74 Heading H4R Signalling over power lines is effected by reducing the amplitude of selected cycles of the power waveform, throughout the same small portion of the cycle period including a voltage zero by drawing current from the system only throughout that portion. As described, the amplitude is reduced for a period not greater than one tenth of one cycle of the power supply at a negative-topositive going zero-crossing by firing a thyristor connected across the power supply. At the transmitter Fig. 5, the mains voltage across LN is differentiated and phase-shifted by 90 degrees in R21, C21 then squared I to produce positive pulses corresponding to positive mains half-cycles. The trailing edges of the pulses trigger a timer 2 producing further pulses of such duration that their trailing edges define the angle at which the thyristor is to be fired. The firing pulses are generated at 3 and gated to the firing transformer T1 when the code generator is operative and detectors 7, 8 confirm that the zero-crossing is in the proper direction and the waveform amplitude is below a predetermined value. The information code is such as to modify the first cycle for START, three selected odd cycles out of cycles 3 to 23 for ADDRESS and an odd cycle out of cycles 25 to 31 for DATA. At the receiver Fig. 7, the mains voltage is applied across R9, R10 to begin charging capacitor C4 when TR4 is turned off at each negative-topositive zero crossing. Diode D4 prevents overcharging. Capacitor C5 charges to the peak value held in C4 via D5 and TR5. Resistor R13 acts as a slow bleed to C5 and any charging current from C4 to C5 is monitored via TR5 and TR6 to provide an output G which lacks a pulse at the instant that the power waveform is modified. To control TR4, transistor TRI is off during negative half-cycles across LN and therefore produces a pulse train B whose amplitude equals the bias voltage + V. The trailing edges occur at negative-to-positive zero crossings and cause TR2 to turn off, allowing C2 to charge until TR2 turns on again. This therefore produces control pulses for driver TR3 to control TR4.
Patent GB-1426302-A (GB)
Title: Procuction of 2,2-dimethyl-1,3-propanediol monoester of hydro xypivalic acid
IPC: C07C69/66
Filed: 1973-07-05
Abstract: 1426302 2,2-Dimethyl-1,3-propanediol hydroxypivalic monoester BASF AG 5 July 1973 [7 July 1972 10 July 1972 12 July 1972] 31978/73 Addition to 1231605 Heading C2C 2,2 - Dimethyl - 1,3 - propanediol hydroxypivalic monoester is prepared by the disproportionation of hydroxypivaldehyde (a) in the presence of calcium, barium or strontium hydroxide in the presence of water or (b) in the presence of one or more oxides and/or hydroxides of lithium, magnesium, thallium, lead, bismuth, lanthanum, cerium, zinc, cadmium, manganese, iron, cobalt, nickel and the oxides of calcium, barium or strontium in the absence or presence of water and in the absence or presence of calcium, barium and/or strontium hydroxide. The starting material may be the product of the reaction of formaldehyde and isobutyraldehyde in the presence of potassium carbonate or a tertiary amine in an aqueous medium.
Patent GB-1080690-A (GB)
Title: Method of copolymerising ethylene with propylene and other olefins
Inventor: DUCK EDWARD WILLIAM
IPC: C08F10/00
Filed: 1965-07-27
Abstract: Homopolymers of ethylene and copolymers of ethylene with another alpha-olefin, are made by effecting the polymerization of the monomers in the presence of a solid catalyst including vanadium or titanium trihalide (but excluding fluorides), and active free-radicals generated at the surface of or in the vicinity of the solid catalyst, from diazomethane.  The catalyst may include an aluminum trihalide, and the V or Ti trihalide may be prepared in situ from a V or Ti tetrahalide and an aluminium alkyl.  Specified other alpha-olefins are propylene and butene-1. The polymerization is preferably effected in a hydrocarbon medium.  The vanadium or titanium trihalide may be ball-milled
Patent GB-1223896-A (GB)
Title: Wall member
IPC: F24F5/00
Filed: 1968-07-04
Abstract: 1,223,896. Heating and cooling windows. SULZER BROS. Ltd. 4 July, 1968 [4 July, 1967], No. 32045/68. Heading F4S. A double-glazed window forming at least part of a wall member comprises heat exchangers 5a, 5b located respectively adjacent the top and bottom of the space 4 enclosed by the lighttransmitting walls and arranged so that in operation the upper exchanger surfaces cool the light-transmitting medium in the space and the lower surfaces, in another operative condition, heat the medium. The space may be completely closed, or communication with ambient atmosphere via a pressure-equalizing orifice housing a filter and/or siccative, or the space may be open to atmosphere. The heat exchanger may be formed as shown in two parts, or a single exchanger may be mounted vertically to extend from top to bottom in the space, adjacent one side of the space, or single exchangers may be arranged horizontally adjacent the top and bottom. Apertured deflectors 9, 10, 11 are mounted in the spaec to distribute the medium throughout the space and vertical lighttransmitting partitions which may be of doubleconstruction, may be mounted in the space to form sections through which the medium can flow consecutively. Venetian blinds may be mounted within or separated from the space.
Patent GB-600646-A (GB)
Title: Improvements in or relating to lighters or igniters using gaseous fuels
IPC: F23Q2/16
Filed: 1945-11-28
Abstract: 600,646. Igniters. QUERCIA, M., and FERDINAND, G. Nov. 28, 1945, No. 32090. Convention date, Feb. 23. [Classes 75(i) and 75(iii)] [Also in Group XXIX] A lighter having a container with an absorbent support for liquid or gaseous fuel is provided with a gas flow regulating device associated with a closure device of the burner. The gas flow regulating device may comprise a rotary conical key 2, bored as at 2a, this key being set, if desired, in a fixed position for any particular fuel. The closure device may comprise a conical valve 4, Fig. 2, so that when the burner 5 is depressed by any suitable means against the action of a spring 7, gas may flow past the valve to the burner. In a modified form the valve 4 may be flat and abut against a synthetic rubber washer. An additional valve 8, Fig. 3, may be provided sliding in the valve 4 so that when both valves are depressed, gas may flow to the burner, but the container is maintained gas-tight should one of the valves 4, 8 fail to operate. Specification 600,645 is referred to.
Patent GB-337947-A (GB)
Title: Improved manufacture of yeast
IPC: C12N1/04
Filed: 1929-10-22
Abstract: 337,947. Langemeyer, C. Oct. 24, 1928, [Convention date]. Yeast.-Pressed yeast is made by adding a small quantity of potassium salts and albuminous substances in aqueous solution to a yeast obtained by the usual working processes. The yeast is allowed to stand for some hours and then passed. Salts mentioned are potassium chloride and potassium sulphate, and the albuminous substances can be obtained by extraction from all cereals rich in albumen but containing little or no sugar, e.g., pea-nut meal, malt germ, lupins &c., in particular, yeast press liquor. Thus, a mixture of pea-nut meal, yeast and malt germ is digested with sulphuric, phosphoric or lastic acid, and to this extract a small amount of dextrose is added.
Patent GB-620726-A (GB)
Title: Improvements in the manufacture of organic acid esters of cellulose
IPC: C08B3/22
Filed: 1946-10-30
Abstract: In the production of cellulose organic acidesters, e.g cellulose acetate, by esterifying cellulose with an organic acid anhydride in the presence of a mineral acid esterification catalyst, e.g. sulphuric or phosphoric acid, and a solvent for the ester, a neutralizing compound of a metal of Group II of the Periodic Table or of aluminium is added to the primary esterification solution in an amount at least equivalent or nearly equivalent to the amount of the acid catalyst, after which the solution is ripened at a temperature of at least 125 DEG  C. under pressure.  Specified neutralizing agents are the acetates of magnesium, zinc, aluminium, calcium, strontium or barium, the oxides or hydroxides of barium or strontium and magnesium carbonate.  Water is added to the primary solution during the ripening operation in one or two stages in which latter case the first addition may be effected by the injection of steam, which also serves to heat the solution to the desired temperature. The ripened ester is finally precipitated from solution by the addition of more water.  The process effects the ripening in a relatively short time and produces esters of high stability. Numerous examples are given.
Patent GB-228681-A (GB)
Title: Improvements in or relating to flexible stretcher bars for railway points
IPC: B61L5/02
Filed: 1923-12-27
Abstract: 228,681. Williams, O. R., and Williams, D. D. Dec. 27, 1923. Stretcher bars.-To reduce the bending of flexible stretcher bars, they are secured to the tongue rails by brackets which are either provided with unsymmetric holes, Fig. 4, or are made right and left hand, Fig. 6.
Patent GB-175413-A (GB)
Title: Improvements in or relating to means for copying keys
IPC: B23P15/00
Filed: 1920-11-16
Abstract: 175,413. Langford, E. W. Nov. 16. 1920. Milling-machines; slotting.-In a machine for duplicating comprising means for supporting a pattern key and key blank in identical relations to a feeler and a ward-cutting tool respectively, and means for feeding the tool and blank towards each other to carry a cut to a depth determined by the contact of the feeler with the pattern, the pattern and blank are mounted so as to be capable of rotation to provide for the formation of wards in the ends if required, the tool has a straight-line movement in a direction at right angles to the plane of the key blank, and a multiple blank clamp is provided. The cutting- tool may be a hack-saw, circular-saw, band-saw, milling-cutter, or a warding-file. In the construction illustrated, employing a hack-saw 15 reciprocated by a lever 13, the pattern and blank clamps 23, 27 are mounted on a member 20 slidable vertically in a transversely adjustable member 17. A plate 28 normally locks the clamps against rotation, but may be depressed by means of a lever 29. The stem 36 of the feeler 35 is held in a bracket 38 adjustable along a guide 34 by means of a weighted member 39 engaging an enlargement 41 of the stem, the vertical position of the feeler being determined by an adjusting screw 42 adapted to contact with a heel 37 on the stem. When a band-saw is employed, it is mounted on pulleys rotatable about vertical axes; in the case of a rotating cutter, traversing means are also provided.
Patent GB-433915-A (GB)
Title: Improvements in and relating to the production of concentrated table jelly tablets
IPC: A23L21/10
Filed: 1934-11-10
Abstract: 433,915. Packing table jellies. FIELD, A. W., and BIRD & SONS, Ltd., A., High Street, Deritend, Birmingham. Nov. 10, 1934, No. 32386. [Class 94 (i)] [See also Group VI] Table jelly tablets formed with recesses a to facilitate solution, e.g. by moulding in large slabs which are cut up into tablets, are packed in pairs in a single wrapping face to face, back to back or one on top of the other.
Patent GB-173400-A (GB)
Title: An improved construction of clothes peg
IPC: D06F55/00
Filed: 1920-11-19
Abstract: 173,400. Martin, E. Nov. 19, 1920. Clothes-pegs.-Two strips 1, 2 of wood or other material are connected at one end by a hinge 3, and are clamped on to a block 12 of resilient material, such as rubber, by a bolt 9. The hinge may be galvanized or enamelled, or may be made of aluminium. The slot 8 between the strips of wood is preferably somewhat tapering.
Patent GB-863147-A (GB)
Title: Improvements in or relating to a nut locking device
IPC: F16B39/10
Filed: 1958-10-14
Abstract: 863,147. Locking nuts. COCK, C. T. Oct. 14, 1958, No. 32789/58. Class 89(1). A self-locking-nut comprises a screwed-body 2, Fig. 1, having ratchetteeth 6 on one end-face co-operating with similar teeth 61 on a disc 19 in a cap 10 having a bayonetlike-connection with lugs 7 on the body. The disc is pressed against the body by a spring 20. Identicalmembers 5, 5<SP>1</SP>, each comprising an annulus of teeth 6, 61, and lugs 7, 7<SP>1</SP>, are secured in recesses in the body and disc, which latter has a projection 21, Fig. 4, for slidingly engaging a longitudinal-slot 9 in a bolt 1. Cup 16 may be filled with grease to exclude moisture from the cap. Before the nut can be unscrewed from a bolt, the cap is first removed.
Patent GB-1385004-A (GB)
Title: Golf practising apparatus
IPC: A63B69/36
Filed: 1973-07-10
Abstract: 1385004 Golf practising apparatus D COLEMAN 10 July 1973 [18 July 1972] 32818/73 Heading A6D Apparatus suitable for use in practising low arc golf strokes such as putting strokes includes a golf club 1 having a slot 5 in the shaft 2 extending at right angles to the strike surface 4 of the head 3 and a pair of rods 6 passing through the slot 5 which are arranged parallel to the desired path of the ball so that when the strike surface 4 of the club engages the ball it is substantially at right angles to the desired path of the ball. The rods 6 are mounted on members 7 which are supported by spikes 8 (Fig. 1) or by L-shaped brackets 12 (Fig. 2), the lower part of one of the members 7 being spaced from the ground by a distance greater than the diameter of a golf ball so that the ball may pass beneath it. The angle that the plane containing the two rods 6 makes with the ground may be varied by (a) selecting one of a series of holes 11 for mounting the lower rod 6 on the member 7, (b) moving the lower rod 6 along an arcuate slot (not shown) in the member 7 or (c) adjusting the angle of the member 7A on its support 12 (Fig. 2) by means of wing nut 13.
Patent GB-362112-A (GB)
Title: Method and apparatus for the drying of carbonaceous comminuted decolourising material
IPC: F26B17/20
Filed: 1930-10-31
Abstract: 362,112. Drying carbon. WICKENDEN, L., 112, Bay Driveway, Manhasset, Long Island, New York, and OKELL, S. A. W., 6, Willow Street, Cranford, New Jersey, both in U.S.A. Oct. 31, 1930, No. 32843. [Class 34 (ii).] In a method of drying activated or spent carbonaceous decolourizing material, the material is stirred and advanced at such a low speed that substantially no dispersion takes place, thus avoiding risk of ignition. The material is fed through three sections 20, 21, 22, Fig. 2, separated by baffles 40, 43 and containing respectively two, six, and one sets of slowly rotated paddles 61, some of which are arranged slightly helically. The preliminary and main drying sections 20, 21 are heated by separately controlled furnace chambers 15, 16 which extend upwards over that side of the sections on which the material is heaped up, as shown at 15<1>, Fig. 4. Section 21 also contains baffles 41, 42, and cutting vanes 45 may be disposed as shown to break up the material. The cooling and discharge section 22 has a cold water jacket 26, a baffle 44, and discharge paddles 66. The process may take place in the presence of regulated amounts of air, sliding covers 20<1> . . 22<1> being provided for the purpose. In the case of spent carbon, the discharge outlet may communicate with a revivifier as in Specification 362,609, [Group III].
Patent GB-521212-A (GB)
Title: Improvements in or relating to the manufacture of coloured artificial cellulose textiles and pigments therefor
IPC: D06P3/68
Filed: 1938-11-11
Abstract: 521,212. Artificial silk etc.; dyes. SOC. INDUSTRIELLE DE MOY. Nov. 11, 1938, No. 32895. Convention date Sept. 16. [Classes 2 (ii) and 2 (iii)] Pigments for the colouring of cellulosic solutions intended to be converted into artificial threads, ribbons, and the like, are obtained by precipitating the product of the reaction between a diazo compound and an amine or phenol, in a medium containing a protective colloid and a dispersing agent which are miscible with and have no coagulating, thickening, or other deleterious effect on viscose.. The pigment is obtained in such a fine state of dispersion that it may be mixed directly with the cellulosic solution to be coloured. The dispersing agent may be an emulsion of soap or of a sulphonated fatty alcohol or of the substance "Nekal" (Registered Trade Mark). The protective colloid may be swollen albumin, dextrine, or glucose. Pigments prepared from substanpes of the naphthol A.S. series are preferred. In addition to the azoic pigment there may be incorporated with the cellulose solution other pigments, e.g. titanium dioxide. The coupling may be effected in such manner that the total volume of solution is equal to the caustic soda solution required for the solution of the viscose. The necessary amount of xanthate may then be dissolved in the coloured soda solution. In an example, a paste containing naphthol A.S.G., sodium sulphoricinate, and soda is mixed with hot water and after cooling, a solution of dextrin is added. The solution is mixed with a solution of a diazotised fast red T.R. base. Caustic soda solution is added and then the whole is mixed with viscose. In another example a blue dye from a solution of naphthol A.S., containing sodium sulphoricinoleate and dextrin, and a solution of diazotised fast blue R.R. base is obtained in suspension in caustic soda solution. Cellulose xanthate is then dissolved in the caustic soda solution. In another example, a caustic soda solution of naphthol A.S.T.R. containing sodium sulphoricinoleate and dextrin is mixed with diazotised fast red T.R. base. The coloured caustic soda solution is mixed with cellulose xanthate to form a dark red viscose.
Patent GB-650337-A (GB)
Title: Improvements in or relating to high frequency electric heating apparatus
IPC: H05B6/78
Filed: 1948-12-20
Abstract: 650,337. Dielectric heating. GENERAL ELECTRIC CO., Ltd., and STAINSBY, A. G. Dec. 20, 1948, No. 32897. [Class 39(iii)] A dielectric strip 16 is passed through wave guides 10 and 10a excited by generators 13, 13a so as to cause standing waves to be set up in the two wave guides. Wave guide 10a is movable relatively to the waveguide 10 in the direction of the arrow so as to vary the phase relationship between the two with respect to the strip to provide uniform heating across the width of the strip. In an alternative arrangement, Fig. 3, the phase relationship between the standing waves in each arm 10, 10b, is varied by means of a dielectric block 18 to provide uniform heating across the width of the strip 17.
Patent GB-1270784-A (GB)
Title: Processes for carrying out chemical reactions initiated by free-radicals using 1,2-diaryl-1,2-dicyano-ethane compounds as radical initiators
Inventor: JONGH HENDRIK ANTHONIE POPKE D
IPC: C07C255/40
Filed: 1970-07-07
Abstract: 1,270,784. Diaryl dicyano ethanes. AKZO N.V. 7 July, 1970 [8 July, 1969], No. 32929/70. Heading C2C. [Also in Division C3] Compounds of the formula where Ar is a substituted or unsubstituted aryl group and R is a hydrocarbon group when n is 0 or 1 or R is an amino group with 1 or 2 hydrogen atoms or hydrocarbon groups when n is 0 are prepared by subjecting a compound of the formula to oxidative coupling.
Patent GB-949793-A (GB)
Title: Improvements in or relating to fluid-actuated spring-powered driving mechanisms
IPC: F03G1/00
Filed: 1960-09-26
Abstract: 949,793. Spring motors. ROCKWELL MANUFACTURING CO. Sept. 26, 1960 [Oct. 16, 1959], No. 32952/60. Heading F2S. [Also in Divisions F1 and G3] A pneumatic motor 76, Fig. 4, comprises a piston 82 which reciprocates in a bore 80 under the control of a valve 204 in the fluid supply line. The piston 82 is connected to one end of a rod 128 the other end of which is connected to a return spring 150, Fig. 1. A gear train 48 controlled by an escapement 46 is driven by the rod 128 through a pin-and-slot connection 240, 244 and a one-way ball clutch 226 and its output shaft 22 drives a recording chart. Specification 949,794 is referred to.
Patent GB-602650-A (GB)
Title: Improvements in or relating to mountings for flexible capsules for operating transmissions
IPC: G01L7/00
Filed: 1945-12-06
Abstract: 602,650. Barometric gauges. PULLARS ELECTRIC CO. (BRIGHTON), Ltd., and BOWEN, T. Dec. 6, 1945, No. 33061. [Class 106 (ii)] A mounting for a flexible capsule and for a transmission operated thereby comprises at least one plate having punched out of it a resilient tongue which is joined at one end to said plate and has the capsule secured to it, the tongue being engaged by a set-screw mounted on the main part of said plate, relatively to which the transmission is fixed. The capsule 20 is secured to a tongue 21, punched out of a resilient base-plate 10, by means of a threaded stem and nut and the head of a setscrew 23 is located in a hole in the tongue. Two lugs 25 are punched out of the base-plate and bent back under the tongue 21, their ends meeting and forming a screw-threaded hole through which the set-screw 23 passes, its end having a slot for adjustment purposes. A projection on the upper side of the capsule engages a lever 18 mounted on a rock-shaft 16 which is carried between adjustable bearings.
Patent GB-1311912-A (GB)
Title: Drafting devices
IPC: B43L13/14
Filed: 1970-07-08
Abstract: 1311912 Perspective drawing apparatus MAISON WUILLEME 8 July 1970 [10 July 1969] 33065/70 Heading B6P Perspective drawing apparatus includes a T-square arrangement comprising a stiff-rod 4 mounted on a carriage 6 arranged to slide on a stiff-rod 7 at right-angles thereto. A straight edge or rule 2 is pivoted to a carriage 3 arranged to slide on rod 4. An arm 10 is adjustably, slidably and pivotally mounted at 12 on the edge of the drawing-board. The end 13 of the arm 10 is slidably and pivotably mounted to the straight edge 2. With the arm 10 set in its desired position, 13 constitutes the vanishing point. A straight edge 2<SP>1</SP> and an arm 11 are provided on the other side of the rod 4. In a modification (Figs. 6 and 7), the two straight edges 2 and 2<SP>1</SP> can be locked to the carriage 3 at right-angles to the rod 4 so that the horizon can be drawn. To counteract sagging of the vanishing points 13, the pivots at 12 have a screw adjustment which raises and lowers the arms 10 and 11 with respect to the surface of the drawing board.
Patent GB-516046-A (GB)
Title: Improvements in or relating to mechanisms for producing intermittent motion
IPC: F16H29/04
Filed: 1938-11-14
Abstract: 516,046. Endless-belt conveyers; screw conveyers. GLANVILL, A. B. Nov. 14, 1938, No. 33099. [Class 78 (i)] [Also in Group XXIV] An electric motor 3 drives, through a belt 2, a pulley 1 which carries an eccentrically mounted roller 7 engaged by an arm 10 pivoted about a shaft 11 and carrying a pawl 14 adapted to engage the inner surface 15 of and drive a wheel 13 mounted on the shaft 11. The arm 10 is maintained in contact with the roller by gravity or a spring 12, and a bolt 8 carrying the roller is adjustable in a diametral slot 6 in an eccentric boss 5 on the pulley 1. A backstop resembling the pawl 14 may be provided to prevent reverse motion. The wheel 13 may be driven in either direction by providing another pawl similar to 14 on the opposite side of the arm and a corresponding backstop, the pawls and backstops being suitably linked together. The movement of wheel 13 may be varied by controlling the backward travel of the arm 10 by an adjustable screwed rod 19 carrying a buffer 22, or by an adjustable cam 23. The surface 15 and the edge of the pawl may be covered with friction material. When applied to the driving of a conveyer belt, in steps, it is desirable that there should be no tendency for the articles conveyed to continue moving after the belt has stopped and to ensure this, the cam 23 may be continuously rotated at the same speed as the roller 7, the surface of the cam being so shaped that the arm 10 is moved thereby with a smaller acceleration than would be imparted by the roller, which, ultimately takes up the drive. Similarly the cam gives a smaller retardation at the end of the stroke than would be given by the roller.