baber/WOPTO huggingface dataset:
Patent GB-252036-A (GB)
Title: Improvements in electrical protective arrangements for alternating-current systems
IPC: H02H3/30
Filed: 1924-12-09
Abstract: 252,036. Hinton, N. P., and Metropolitan-Vickers Electrical Co., Ltd. Dec. 9, 1924. Cut-out arrangements for alternating-current circuits in which pilot wires are dispensed with employ two sources of oscillating current of predetermined different frequency superimposed on the line and each controlled directly in accordance with the alternations of the line currents flowing in the ends of the section of line to be protected so as to set up beats for time intervals which depend on the phase relationship of the line currents at the ends. The beats are utilized for controlling the operation of relays tuned to the beat frequency. In the arrangement shown in Fig. 1, two oscillation generators 2, in the form of three-electrode valves with grid coil 4 coupled to a tuned anode coil 5 and with anodes supplied from the line section by the secondary of a current transformer, are arranged one at each end of the section. Slightly different high frequency oscillations are thus supplied through a capacity coupling 12 to the line, the frequency supplied at the right hand end being for example 14,000 cycles and that at the left hand end 15,000 cycles. The oscillations generated during the positive half-cycles of the line current beat with one another, the beat frequency, in the example given, being 1,000 cycles per second. At one or both ends of the section a detecting receiver 15 is arranged as shown, with a capacity coupling to the line. Each receiver is tuned to the frequency of the oscillator remote from it so that each receives substantially equal energy from both oscillators. A relay 17 is connected in the anode circuit of each receiver and is tuned to the bevel frequency. This relay maintains its inoperative position as long as the beat frequency persists or persists at a certain strength. When, however, the beat frequency ceases or changes the relay operates and controls the protective gear. The beat frequency ceases or changes when, on fault, the current in the respective ends differs in phase owing to the fact that while on fault one of the oscillation generators will continue to oscillate during the same positive half-cycles as before the other will oscillate during half-cycles which may now be nearly 180‹ out of phase therewith. In a modification, a pair of oscillators may be provided at each end of the line the anode supply current of which are 180‹ out of phase with one another. By these means both halfcycles of the line current are used and continuous oscillations are superimposed thereon. All four superimposed frequencies may be different, but the beat notes from the two pairs should be the same so that a single receiver at one or at each end may be employed. As applied to a threephase line, the anodes of the oscillation generators 3 are supplied with current obtained from series connected current transformers in the three phases, one of the secondaries being crossconnected as shown in Fig. 9.
Patent GB-685968-A (GB)
Title: Sheet metal bodies
IPC: B62B1/18
Filed: 1950-12-04
Abstract: 685,968. Wired sheet metal edges. BAKER, B. H. Sept. 18, 1951 [Dec. 4, 1950], No. 29587/50. Class 83 (ii). In a method of beading the edges of sheetmetal bodies such as wheelbarrows, tanks, &c., a reinforcing wire enclosed by the beaded edge b of the sheet metal a has its adjacent ends c enclosed by a rigid sleeve d. The wire with the sleeve d slipped over its ends c is inserted in the partially formed bead b having an enlarged portion B<SP>1</SP> for the sleeve, and the bead is finally closed around the wire and sleeve.
Patent GB-228658-A (GB)
Title: Improvements in and relating to electromagnetic means for measuring the distance between two magnetic members, or the period of vibration of one of them
IPC: G01B7/14
Filed: 1923-11-23
Abstract: 228,658. British Thomson-Houston Co., Ltd., (General Electric Co.). Nov. 23, 1923. Vibrations, indicating &c. - Apparatus for measuring the distance between two members of magnetic material comprises two similar electric coils supplied with alternating current from the same source or from similar sources, the one coil being arranged to produce a magnetic field at the point of measurement and the other coil having an adjustable air-gap of known value in its core which can be. varied until a condition of balance between the two coils is obtained. The invention may be applied to measuring the distance between stationary bodies, the expansion of a body due to heat, the uneven running, vibrations or end play of a rotating shaft, and the measurement of pressure. In the form shown in Figs. 1 and 2 an electric coil A is embedded in a member 11 of magnetic material having a core 12 which is flush with the surface of the member 11. A member 14 of magnetic material carries an indicator 15 and a micrometrically adjustable plug 16 and is mounted on non- magnetic supports 13. Alternating current from a source 22 is supplied through a transformer 23 to two differentially connected circuits 24, 25. In the circuit 24 the coil A is connected in series with a winding 26 of a transformer 28 and also with an adjustable resistance 20 and a variable inductance 31. A similar coil B is similarly arranged in the circuit 25. The transformer contains a third winding 33 connected to a recording instrument 34 such as an oscillograph. To determine the distance or clearance between a bucket wheel and a stationary frame part of a turbine in which the coil B is embedded, the variable resistances 20, 30 and inductances 31, 32 in circuits 24, 25 are first balanced against each other in any known manner. The air gap of the coil A is then adjusted until it is equal to the gap X adjacent to the coil B. This is attained when there is no current in the coil 33 and no deflection on the instrument 34. The distance X can then be read directly from the graduated surface 17 and the indication 15. If it is desired to measure the amplitude and period of vibration of the wheel 37, the circuit is first balanced as before with the wheel 37 stationary. The wheel is then rotated and the vibration will be recorded on the chart of the oscillograph, the period being determined by comparison, with a time curve on the chart and the amplitude by calibrating against the amplitude of swing of the instrument. In one form the coils 26, 27, 33 of the transformer are wound on top of one another. To measure fluid pressures the diaphragm or other pressure-sensitive member of the gauge carries a plate of magnetic material which is moved to or from the coil B.
Patent GB-981737-A (GB)
Title: Extrusion die
IPC: B29C48/12
Filed: 1961-02-28
Abstract: 981,737. Extrusion dies. SEISAN NIHON SHA KABUSHIKI KAISHA. Feb. 28, 1961 [April 11, 1960], No. 29636/64. Divided out of 981,736. Heading B5A. In an extrusion die for use in an extruder for synthetic resin tubing from which may be made bags having co-operating male and female rib closure elements formed integral with the bag material at the inner surface thereof, notches 111, 112, Fig. 4, for forming the rib elements are provided in a die-plate 110 secured to the die core 102, Fig. 1, the notches opening into the annular die passage 104, at the extrusion outlet and being connected each by a conduit 116 or 117 (not shown) to a point in the die passage upstream of the extrusion outlet. The flow of material through the conduits 116, 117 is controlled by valves 118 and 119 (not shown), regulated by adjusting screws 124 and 125 (not shown). Air is supplied through an inlet 133 to an axial bore in the core 102 for expanding the extruded material.
Patent GB-962708-A (GB)
Title: Elevator safety device
IPC: B66D5/32
Filed: 1962-08-02
Abstract: 962,708. Speed-responsive switches. INVENTIO A.G. Aug. 2, 1962 [Aug. 12, 1961], No. 29666/62. Heading H2B. A cam regulator 1 includes a cam disc 1.2 rotated at an angular speed proportional to the travelling speed of an elevator, a rocking lever 1.3 rooked by the cam disc, a stirrup 2 mounted on the lever 1.3 and carrying a U-profile 3 having a mass 8 which is displaceably guided substantially tangentially to the rooking lever movement and is pressed against a fixed stop 3.2 by an adjustable spring force, and a switch 9 including a contact bridge 9.1 which is operated by an actuating bolt 6 fixed to the mass 8 to affect the control circuit of the elevator when a certain critical travelling speed is exceeded, the mass 8 being lifted away from the stop 3.2 against the adjustable spring force by the acceleration forces on the mass. The spring force is provided by a compression spring 7 as shown, or by a tension spring in a different embodiment (Figs. 3, 4, not shown). In a further embodiment, Fig. 5, a switch 24 is operated by movement of an actuating bolt 26 fixed on a permanent magnet 25, normally pressed against an armature stop 23 provided by a carrying stirrup 20, when the spring force and acceleration forces together overcome the magnetic forces. An alternative non-magnetic snap-action embodiment is referred to. The switch in the elevator control circuit must be re-set by hand in each embodiment.
Patent GB-1321482-A (GB)
Title: Rotary piston machines
IPC: F04C18/20
Filed: 1970-06-18
Abstract: 1321482 Rotary positive-displacement machines ATLAS COPCO AB 18 June 1970 [18 June 1969] 29749/70 Heading F1F A compressor, or motor, has parallel bores 5, 6 containing co-operating single-toothed main and gate rotors 7, 8 and communicating with inlet and outlet passages 18, 21 through a port comprising a radial portion 19 and two axial portions 20 and two axial ports 22, respectively, the latter being controlled by a hub portion 35 of the gate rotor. The rotors are coupled synchronously by gears, Figs. 1 and 3 (not shown), and rendered hollow such that they are dynamically balanced and have similar masses. Portions 39, 40 and tooth flank 37 of the gate rotor are generated by the main rotor tooth-flank and tip 27, 28, 29. A recess 31 is generated roughly by the gate-rotor tooth-portion and flank 41, 42. The tips of the teeth may be rounded, Fig.7 (not shown). Each of the ports 22 has an edge 53 following a portion of the path of the tooth tip 29.
Patent GB-303243-A (GB)
Title: New basic and acid dyes of the rhodamine type
IPC: C09B11/24
Filed: 1927-11-07
Abstract: 303,243. Imperial Chemical Industries, Ltd., and Allchin, L. J. Nov. 7, 1927. Hydroxy-phenyl rhodamines and their sulphonic acids.-A 3 : 6-dichlorfluoran is condensed with an o-, m-, or p-aminophenol, or a phthalic anhydride is condensed with a di-(hydroxyphenyl) amine in which one hydroxy group is in the mposition. The basic dyes so obtained may be sulphonated. In examples : 3 : 6-dichlorfluoran is condensed with p-amino-phenol and the product sulphonated; the use of o-aminophenol, 5- amino-o-cresol, and 3 : 6 : 3<1> : 4' : 5<1> : 6<1> - hexachlorfluoran is mentioned; 3 : 4' -dihydroxydiphenylamine is condensed with phthalic anhydride and the product sulphonated; the dye in this case is accompanied by an acridine derivative, which may be partly removed by careful salting out of a solution of the sulphonated dye in alkali.
Patent GB-1208535-A (GB)
Title: Improvements in or relating to control of a catalytic cracking unit
IPC: C10G11/18
Filed: 1969-06-12
Abstract: 1,208,535. Control of cracking conditions. GENERAL ELECTRIC CO. 12 June, 1969 [13 June, 1968], No. 29815/69. Heading C5E. [Also in Division G3] In the cracking plant shown, the rates of flow of preheated fresh oil feed, recycle oil, hot fluidized regenerated catalyst and steam into each of the two risers 11 and 12 leading to the reactor 20 are independently controlled by the sets of valves 30 and 31, 34 and 35, 47 and 48 and 40 and 41, respectively. Set-point signals provided by an operator, or by a computer, control the operation of the valves. The oil feed is vaporized by the hot catalyst in the risers 11 and 12 and the product vapours from the reactor 10 pass to a fractionator 14 which separates a gasoline product, an uncracked or partially cracked material which is recycled through line 20, and a bottoms material which is removed through line 21. The catalyst is regenerated by burning off deposited coke with air from blower 24. All the recycle oil from line 20 can be fed to one of the risers 11 and 12 whilst only fresh feed is fed to the other riser.
Patent GB-1186559-A (GB)
Title: New Aminoether Derivatives of 9,10-Dihydro-9,10-Ethano-9-Anthrols and their Salts and process for preparation thereof
IPC: A61K31/33
Filed: 1967-06-28
Abstract: 1,186,559. Aminoether derivatives of 9,10- dihydro- 9,10 -ethano -9 -anthrols. SOC. INDUSTRIELLE POUR LA FABRICATION DES ANTIBIOTIQUES. 28 June, 1967 [6 July, 1966; 23 Sept., 1966], No. 29843/67. Heading C2C. Novel compounds (I) (including acid addition and quaternary ammonium salts thereof), wherein R and R<SP>1</SP>, which may be identical or different, represent H, F, Cl or Br atoms or C 1-5  alkyl, C 1-5  alkoxy or CF 3  radicals, at least one of R and R<SP>1</SP> not being a hydrogen atom, A represents a straight or branched C 2-6  alkylene radical and R 1  and R 2 , which may be identical or different, represent hydrogen atoms or C 1-5  alkyl or C 1-5  hydroxyalkyl radicals, or form with the adjacent N- atom a heterocyclic ring which may be substituted by one or more C 1-5  alkyl or C 1-5  hydroxyalkyl radicals, are prepared by the interaction of the appropriate 9,10-dihydro- 9,10-ethano-9-anthrol and a compound of general formula X-A-NR 1 R 2  wherein X represents a halogen atom or a benzenesulphonyloxy, toluenesulphonyloxy or methanesulphonyloxy radical. Pharmaceutical preparations having antihistaminic, antianaphylactic, antiemetic and local anaesthetic properties contain as the active ingredient compounds (I) and can be administered through digestive, parenteral or local routes.
Patent GB-455172-A (GB)
Title: Improved method of treating wrappers for the preservation of chilled and frozen carcasses
IPC: B65B25/06
Filed: 1935-10-30
Abstract: Tubular fabric wrappers for frozen carcasses are rendered air-proof by impregnating with an aqueous solution of casein and soda ash and drying at a temperature of from 100 to 112 DEG  F.  The wrapper may be provided with an inner lining of waterproof and airproof material, preferably transparent, such as regenerated cellulose, and then impregnated and dried, whereby the liner is sealed to the outer fabric.
Patent GB-799998-A (GB)
Title: Improvements relating to washing machines
IPC: D06F39/06
Filed: 1956-10-02
Abstract: 799,998. Washing-machines. MASCHINENFABRIK P. PFENNINGSBERG GES. Oct. 2, 1956 [Nov. 23, 1955], No. 30010/56. Class 138 (2). Excessive foam formation in a washing- machine is prevented by a body consisting of or containing a chemical anti-foaming agent with which the foam comes into contact when it is formed in excessive amounts. In Fig. 1 the antifoaming body is in the form of a ring d located in an annular groove c surrounding a filling funnel b for washing agent. In Fig. 2 (not shown) the anti-foaming body is in the form of a rod inserted through an opening in the side of an overflow pipe connected to the upper part of a washing-chamber containing a rotary clothes drum. In Fig. 3 (not shown) the antifoaming body is in the form of a ring inserted in a widened portion of an upwardly extending pipe connected to the washing chamber. The body may consist of an impregnatable material forming a carrier for a liquid anti-foaming agent, or it may consist of an anti-foaming agent in solid or plastic form.
Patent GB-905555-A (GB)
Title: A process for the shattering of ores and rocks by high frequency electro-magnetic fields
IPC: B02C19/18
Filed: 1959-09-03
Abstract: Metallic ores are comminuted and the valuable fraction recovered by subjecting the ore to pulses of H.F. electromagnetic energy.  The valuable fraction, such as gold, may be vaporized by the pulses and the condensed metal recovered by solution in a solvent such as cyanide; alternatively, the ore in a solvent solution may be subjected to the H.F. treatment.  The H.F. treatment may be effected by passing an ore on a belt conveyer of low-energy-absorbing material through a helical coil, near to a pancake coil, and/or between the plates of a condenser, each connected to a source of H.F. energy which may be of 100 watts average energy dissipation and capable of delivering 100 pulses per sec. of 10 kw. energy with a frequency of 5 megacycles per sec.  The ore may also be conveyed in a tube, trough or launder.
Patent GB-701859-A (GB)
Title: Improvements in or relating to electrodes for secondary batteries
Inventor: HAGSPIHL PAUL
IPC: H01M4/64
Filed: 1951-12-24
Abstract: 701,859. Batteries. ACCUMULATORENFABRIC AKT.-GES. Dec. 24, 1951, No. 30108/51. Drawings to Specification. Class 53 An electrode for an alkaline accumulator consists of a wire net which is first coated with sintered metal and then with a metal deposited electrolytically. A body of sintered metal forming the carrier of the active material is then applied to the electrolytically deposited metal. The metal of the first sintered coating is chosen so that it forms an alloy with the metal of the wire net and the electrolytically deposited metal and the metal of the sintered body. The wire net may be made of iron and the first sintered coating of a mixture of copper and nickel on which a nickel coating is deposited electrolytically. The carrier for the active material may be sintered nickel. Alternatively the carrier may consist of iron or a mixture of iron and nickel, the electrolytically deposited layer then consisting of chromium.
Patent GB-817757-A (GB)
Title: Improvements in or relating to underground cable protection covers
IPC: E04B2/12
Filed: 1954-10-20
Abstract: 817,757. Tiles for covering underground cables. ALLARDYCE, T. Oct. 20, 1955 [Oct. 20, 1954], No. 30191/54. Class 87(1) In a trapezium-shaped tile for covering underground cables, each of the non-parallel sides is diveded into quarters by symmetrically-arranged projections 16, 17 and complementary recesses 20, 21. Such tiles may be arranged end-to-end to form either a straight or curved length of cable cover. The tile has roles 25 and tapered recesses 26 for receiving staples 24. In a modification, Fig. 8, the projections and recesses stop short of the parallel sides of the tile.
Patent GB-509970-A (GB)
Title: Improvements in and relating to field gun carriages
IPC: F41A23/32
Filed: 1938-10-20
Abstract: 509,970. Field gun-carriages. AKTIEBOLAGET BOFORS. Oct. 20, 1938, No. 30332. Convention date, March 3. [Class 92 (i)] A field gun-garriage has divided trail beams 1, 1a provided with extensions 3, 3a and spades 4, the extensions 3, 3a carrying axle sections 7, 7a for transport wheels 5, 5a. For transport purposes, the trail beams are coupled by a hook 21 and strainer 22, and in this position a conical end on one of the axles engages within a similarly shaped recess at the end of the other axle so that the two axles are maintained in rigid. alignment. The axles are pivoted on the trail beam extensions at 16, 16a, Fig. 3, and are coupled to these extensions also by spring- plunger devices 13, 13a. The wheels are spring mounted and are coupled by parallel links 6 to pivots 5<1> mounted in the axles, these pivots being controlled by bell-cranks 8, 8a linked by rods 9, 9a to bell-cranks 10, 10a which are mounted, one on each trail beam extension, and are coupled to superposed draw-bars 11, 11a connected, in the transport position, by a fastening 17. When the gun is to be set up in the firing position, the fastenings 21, 17, Fig. 2, are uncoupled and the bars 11, 11a turned in opposite directions, each through a right-angle whereby the bars and wheels 5, 5a are swung into vertical planes parallel to and adjacent the axles 7, 7a, as shown in Fig. 4. The bars are then pulled in opposite directions to separate the trail beams, this movement withdrawing the axles from interengagement, whereupon the weight of the trail beams is carried by the spring devices 13, 13a. The spades are then lowered to the ground and locked, after which the gun is fired, the reaction forcing the spades into the ground and the trail extensions into contact with the ground against the resistance of the spring devices 13, 13a. Pawls 18, Fig. 9, wipe over teeth on plates 19 carried by the trail-beam extensions, to prevent the springs 13, 13a from lifting the trails and thereby withdrawing the spades in the intervals between firing. The spades may be driven deeper by successive firing operations, the spades being unlocked from the trails and the pawls 18 released, after each shot, for this purpose.
Patent GB-154182-A (GB)
Title: Improvements in concentrating, evaporating and dehydrating liquids by treatment withgases
IPC: B01D1/14
Filed: 1920-10-27
Abstract: 154,182. Webster, P. W., and Boynton, V. K. Nov. 20, 1919, [Convention date]. Sulphuric acid.-In treating a liquid with a heated gas, for evaporating, concentrating or dehydrating the liquid, and for producing chemical reactions, the gas is heated above the boiling- point of the liquid and is forced through porous plates 2 which may be formed of a sintered silicious material termed " filtros " and which form the base of a liquid-containing vessel. The gas enters the liquid in a very finely-divided form, and rises therein without raising it to its boiling- point. In purifying and concentrating sludge acid obtained in treating mineral oils with sulphuric acid, air or other gas is heated to about 1000‹ F. and compressed into the chamber 3 to a pressure of 2 lbs. per sq. in. The air passes through the porous plates 2 and rising through the sludge acid removes water and acts upon the hydrocarbons to form volatile saturated hydrocarbons and residual carbon which can be removed from the acid. Sulphuric acid of 40‹ BÚ may be concentrated to acid of 64‹ BÚ by passing through it the products of combustion of fuel oil which have a temperature of 1200-1400‹ F. The temperature of the acid rises to about 249‹ F. The porous plates 2 may be formed of electric-insulating material.
Patent GB-1271433-A (GB)
Title: Improvements in or relating to apparatus suitable for use in transferring plies of fabric material from a stack thereof
IPC: B65H3/22
Filed: 1969-06-16
Abstract: 1,271,433. Feeding sheets. USM CORP. 16 June, 1969 [17 June, 1968], No. 30362/69. Heading B8R. A device for separating a plurality of fabric plies from a stack S thereof comprises transfer means 60 for removing the plies from the stack, displacement means 288, 296 for successively engaging the surfaces of the face and adjacent plies and displacing them relative to the remainder of the stack and clamping means 320 for clampingly engaging the remainder of the stack whilst the displaced plies are removed by the transfer means. Pile tables.-Stack S is supported on a pallet 34 carried on a vertically movable table 12. The table may be raised or lowered on a chain 26 and is guided by rollers 18 and 20 engaging track 22. Separators.-The transfer means 60, the displacement means 288, 296, and the clamping means 320 are all carried on a work head 16 slidably mounted on a carrier arm 14 and movable therealong by a double acting fluid pressure cylinder 42. The displacement means comprises presser foot 310 pivotally movable into engagement with the uppermost ply and pusher members 296, 288 engageable with the first and second plies of the stack respectively and operable under the control of pneumatic cylinders 280, 282 to buckle the first ply against foot 310 and the second ply against member 296. Subsequently clamping plate 320 is brought into engagement with the remainder of the stack by pneumatic cylinder 316 and the buckled plies are removed by pick-off means 60. The pile table may be momentarily lowered to ease removal. A finger may be provided to retain the buckled plies whilst the pusher members 288, 296 are operative to buckle further plies thus enabling more than two plies to be simultaneously removed.