baber/WOPTO huggingface dataset:
Patent GB-1469656-A (GB)
Title: Heat exchangers
IPC: F28D1/047
Filed: 1974-03-14
Abstract: 1469656 Making heat exchangers CIBAGEIGY AG 18 Feb 1975 [14 March 1974] 11312/74 Heading B3A [Also in Divisions B5 and F4] A method of making a heat exchanger comprising a conduit having a plurality of passes joined by integral return bends comprises producing two strips of material placed together in zigzag formation to form a stack of substantially parallel passes, the two strips being relatively displaced in the direction of the passes to leave a clearance between the bend peaks, bonding the strips together along lines substantially parallel to their longitudinal edges to form a flat serpentine conduit, and inflating the conduit by internal fluid pressure. The strip may be of copper, mild steel, aluminium, or aluminium alloy. The strip may be bonded by welding, soldering or brazing, using a release agent or stop-weld in those areas which are to be inflated. The strips may be bonded by a thermosetting adhesive, e.g. epoxide resins or phenolic resins, and the latter may contain an elastomer such as nitrile rubber or a thermoplast, e.g. nylon or a vinyl polymer. Alternative adhesives are natural or synthetic rubbers such as chlorinated, nitrile, or polysulphide rubbers, or thermoplastic adhesives such as poly-(vinyl acetate), poly-(vinyl chloride), polyacrylates, and polyamides. The stack shown in Fig. 2 may be produced by folding together strips 21, 22 and then pulling them apart, or folding the strips separately and interfitting them, or folding them together but displaced. The resulting stack is bonded, usually under pressure and heat, using spacers 23 of twice the strip thickness, (e.g. strip material doubled) at the bends. The stack may then be cut to produce a flat conduit of the required size, which is then assembled with tool pieces 41, and one or both ends connected to a pressure source to form the inflated conduit. The pattern of adhesive or stop-weld may be such as to produce a single channel along the strip, or plural channels, or plural interconnected channels, and a channel may be sinuous. In a final step, fin pieces 51 are placed between the conduit passes and fixed by adhesive. Alternatively these may be inserted before inflation of the conduit, and gripped by such inflation.
Patent GB-196929-A (GB)
Title: Improvements in apparatus for taking direct current voltage free from higher harmonics from a rectifier
IPC: H02M1/14
Filed: 1923-04-26
Abstract: 196,929. Akt.-Ges. Brown, Boveri, et Cie. April 26, 1922, [Convention date,]. Void [Publisheld under Sect. 91 of the Act]. Vapour apparatus, arrangements of. - A direct current free from higher harmonics is obtained from a rectifier G by inserting a transformer T2 in the directcurrent circuit, the arrangement being such that the secondary voltage of the transformer has the same frequency and amplitude as the higher harmonic component of the rectifier voltage, but is of opposite sign. The primary winding Pz of this transformer is connected between the cathode K and the neutral point O of the main transformer T feeding the rectifier, a condenser C being preferably included in the primary circuit to prevent the flow of direct current through it. The secondary winding Qz of the transformer Tz is in series with the direct-current mains g, h. Instead of the condenser, a directcurrent consuming device, such as a compensated series motor, may be connected in the primary circuit.
Patent GB-910488-A (GB)
Title: A process for the production of 6-[2,66-trimethylcyclo-hexen-(1)-yl]-4-methylhexadi-3,5-en-1-yn
Filed: 1961-03-28
Abstract: 6 - [21,61,61 - trimethylcyclohexen - 11 - yl]-4-methylhexadi-3,5-en-1-yn is obtained by reacting b -ionone at not more than 25 DEG C. in a solvent with the product obtained by reacting a propargyl halide with aluminium. The latter reaction is effected by reacting 1.4-1.6 mols of propargyl bromide or iodide with 1 gram atom of aluminium, in the forms of chips, coarse powder or flakes and which may be activated with mercuric chloride in the presence of diethyl ether, tetrahydrofuran, or dioxane at -30 to 50 DEG C.  The b -ionone is added in an amount of 0.7-0.9 mol per mol of propargyl halide in solution in the same solvent, the total amount of solvent used being 200-800 ccs. per mol of propargyl halide.  A small amount of 6 - [21,61,61 - trimethylcyclohexen-21 -ylidene]-4-methylhex-4-en-1-yn is also formed.
Patent GB-179412-A (GB)
Title: An automatic guard for the cutters of vertical spindle wood-moulding machines
IPC: B27G21/00
Filed: 1921-04-20
Abstract: 179,412. Hemingray, W. April 20, 1921. Guards.-A guard for the cutters of verticalspindle wood-moulding machines comprises two segments a, b mounted on a fixed spindle e, the segment b being capable of rotational movement relatively to the spindle e, and the segment a being fixed. A spring fitted in the bosses of the segments tends to keep them in the guarding position shown in Fig. 2. As the work passes through the machine, it passes against the edge a<2> of the movable segment b and pushes it round the segment a. When the work has passed, the spring returns the guard-piece b to its guarding position. Brackets i, j adjustably support the guard from the machine.
Patent GB-1096522-A (GB)
Title: Improvements in hydrostatic extrusion apparatus
Inventor: GREEN DEREK
IPC: B21C23/00
Filed: 1964-03-18
Abstract: 1,096,522. Extruding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 5, 1965 [March 18, 1964], No. 11431/64. Heading B3P. Hydrostatic extrusion apparatus comprises a cylindrical pressure container 10 for receiving the workpiece to be extruded, having an extrusion orifice 11 at one end and a sealable closure member 16 at the opposite end, the container being connected by a radial duct 13 with a liquid pressurizing cylinder and plunger assembly 7, 8. Plunger 8 passes through a liquid reservoir 22 and acts on a sealing assembly 9 which is used to pressurize the liquid in cylinder 7. The plunger 8 is actuated by a double-acting piston lead 6 the underside 20 of which is connected to a supply of pressure oil. To initiate the extrusion stroke, nitrogen gas under pressure is admitted above the piston head 6. The speed of extrusion is regulated by a metering valve 21 which controls the discharge of oil from chamber 20. Container 10 has an extension 15 for receiving long slender workpieces, whose outer end is closed by plug 16 and breech mechanism 17.
Patent GB-350129-A (GB)
Title: Improvements in the manufacture of cementitious material
IPC: C04B2/00
Filed: 1930-04-10
Abstract: Magnesium or calcium oxide or hydroxide or blast furnace slag or mixtures thereof alone or mixed with base material are heated in the presence of hydrochloric acid.  The oxides may be obtained by calcination of natural carbonates.  The acid may be added by being introduced into the furnace during calcining or during a reheating of the oxides, either as a solution of the acid or as a solution of a salt of the acid.  In addition to hydrochloric acid, sulphur in combination as sulphuric or sulphurous acid and an aluminium salt may be present.  An alternative method of introducing the acid &c. is to dip the oxides after calcining in a solution of the acid and subject to a reheating.
Patent GB-1468065-A (GB)
Title: Electrically insulating board
IPC: H01B3/48
Filed: 1974-03-14
Abstract: 1468065 Printed circuits SUMITOMO BAKELITE CO Ltd and SANSUI ELECTRIC CO Ltd 14 March 1974 [24 March 1973(2)] 11488/74 Heading H1R [Also in Divisions B2 and B5] A printed surface board comprises a baseboard 1 formed of inorganic fibres, an inorganic binder and an inorganic filler, the baseboard having a cured thermosetting resin impregnated therein, at least one surface of the baseboard having an electrically insulating layer 2 comprising a cured thermosetting resin bonded thereto and a conductive area 3 on the surface of the electrically insulating layer. The inorganic fibres may be formed of asbestos, rock wool, slag wool or mixtures thereof, suitable inorganic binders being portland cement, alumina cement, blast furnace cement, silica cement, flyash cement or a mixture thereof and suitable inorganic fillers being powdered lime, calcined gypsum, silica, alumina, calcium silicate, perlite, diatomaceous earth or a mixture thereof. The impregnating resin may be a phenolic resin, a silicone, a furan resin, a xylene-phenol condensate, an epoxy resin, an unsaturated polyester resin, a diallyl phthalate resin or a mixture thereof. The electrically insulating layer may be a coating of the resin, a layer of thermoplastic resin sandwiched between layers of a thermosetting resin, the thermoplastic resin having a melting point of at least 150 C., or a layer of paper or of woven or non-woven fabric, e.g. of glass fibres impregnated with a thermosetting resin. The thermosetting resin of the insulating layer may be a phenolic resin, an epoxy resin, an unsaturated polyester resin, a diallyl phthalate resin, a xylene-phenol condensate, an amino resin, a polyurethane, a silicone or a mixture thereof. The thermoplastic resin may be polyethylene terephthalate, a polyamide, a polyimide or a polyamide-imide. The board may be made by assembling the impregnated baseboard, the insulating layer and a metal foil, e.g. of copper, hot pressing the assembly and etching the foil; alternatively, a board may be made from the baseboard and the insulating layer and printed with an electroconductive ink. In the embodiment shown, an electronic device 5 is connected to the board by lead wires 6 passing through holes 4 punched in the board.
Patent GB-527585-A (GB)
Title: Plate heat exchange apparatus for gas turbines
IPC: F28D9/00
Filed: 1939-04-15
Abstract: 527,585. Heat exchangers for turbines. JENDRASSIK, G. April 15, 1939, No. 11500. Convenfion date, April 16, 1938. [Class 64 (iii)] In plate heat exchangers for gas turbine plant, wherein the plates are of similar configuration in cross-section, and the flow spaces are left open at parts of the periphery to provide the fluid inlets and outlets, the openings of one flow space are staggered with respect to the openings of the adjacent space. The sheets are formed with triangular-shaped extensions, and peripheral sealing bands 17-20 leave inlet and outlet openings 13, 14, 21, 22. The plates are superposed so that the inlets 24 to one plate are staggered with respect to the outlets 27 of the adjacent plate, and the fluids move in counterflow in adjacent spaces. Strengthening ribs 23, staggered in alternate sheets, form channels for the fluid flow; the ribs may be of wave-line shape, or may be interrupted longitudinally. The stack may be fitted with inlet and outlet ducts 50, 49, Fig. 11, and throttle valves 54 are provided whereby an increased speed of flow may be induced in certain passages for the purpose of removing dust &c. To avoid detrimental stresses owing to variation of temperature, a bellowslike connection may be made between the stack and the outlet duct.
Patent GB-925429-A (GB)
Title: Indole derivatives
IPC: C07D401/06
Filed: 1961-03-29
Abstract: The invention comprises compounds of the general formulae: <FORM:0925429/IV(a)/1> (wherein B represents a 1,2-alkylene bridge containing up to 5 carbon atoms, the residue <FORM:0925429/IV(a)/2> represented by the formula:  <FORM:0925429/IV(a)/3> is a piperidine or D 3,4-piperideine radical which may be C1-C5-alkyl substituted, R represents a phenyl or substituted phenyl radical, R represents a bivalent radical liking R to the nitrogen atom by a chain of not more than 6 atoms, one of which may be oxygen and the others being carbon, the atom in the chain furthest from R being a saturated carbon atom and the chain being optionally substituted by a hydroxy or oxo group, and X- represents an anion, and wherein the benzo ring of the indole nucleus may be substituted and the pyrrolo ring may be C1-C5 alkyl substituted), and the acid addition salts of the compounds of the first formula, and the preparation thereof from compounds of the general formula: <FORM:0925429/IV(a)/4> by (a) reaction with a compound of the formula RAX (wherein X represents a halogen atom or a sulphonic ester group), followed, if desired, by reduction of the pyridinium compounds (by catalytic hydrogenation to give the piperidine compounds or by means of an alkali metal borohydride to give the piperideine compounds, which may then be catalytically hydrogenated to give the piperidine compounds) or (b) (for the piperidine compounds) catalytic hydrogenation followed by reaction of the product of the general formula:  <FORM:0925429/IV(a)/5> with a compound RAX as defined in (a) or with a corresponding epoxide. Examples include compounds in which R is a p-nitrophenyl radical, a p-aminophenyl radical (prepared by reduction of the nitrophenyl compound) and a p-chlorophenyl radical, and in which the benzo ring of the indole nucleus is substituted by hydroxy, trifluoromethyl, amino and methoxy.  Other substituents that may be present in R or in the benzo ring of the indole nucleus include methylenedioxy, benzyloxy and C1-C5 alkyl and alkylthio groups.  Quaternary ammonium salts of some of the products of the examples are described.  The compounds of the first general formula have analgesic, central depressant and, in some cases, vasodilator activity.  Specification 842,996 is referred to.
Patent GB-768434-A (GB)
Title: Driving mechanism for the pressure head of addressing machines and the like
IPC: B41L45/00
Filed: 1955-04-21
Abstract: 768,434. Addressing-machines. ADREMAWERKE GES. April 21, 1955 [April 24, 1954], No. 11533/55. Class 100(2) The downward movement of the pressure head of an addressing-machine is increased by a positive drive followed firstly by a non-positive drive and then by a final positive drive. The pressure head is carried at the end (not shown) of an arm 5<SP>1</SP>, Fig. 1, actuated by a pivoted lever 5 pivoted at its lower end to a block 3 slidable in a slot in a rod 1 reciprocable by a shaft 2. A spring 6 urges the block 3 to the right, whence as the rod 1 moves to the right, the head is lowered through the action of the spring. Pivoted to the rod 1 at 7 is a lock 8 to which is rigidly secured a lever 13 having a pin 14 which is urged to the left by a spring 18 in a slot 15 in a link 16 pivoted at 17 to the machine frame. The lock 8 has pawls 9, 11 which co-operate with an abutment 12 on the block 3 when aligned therewith, to impart a positive drive to the block and head. At the beginning of the downward stroke of the head, the parts 9, 12 are aligned. Movement of the rod 1 causes the lock to be swung counter-clockwise, whereupon the drive is through the spring 6 only, until near the end of the stroke the parts 11, 12 become aligned. If the head is prevented from moving further downwards during the non-positive drive, the spring 6 is compressed, the abutment 12 moves into the recess 10 between the parts 9, 11 and the pin 14 moves to the right in the slot 15. In another form Fig. 3, the lock has only one positive driving part 20, and is moved into one of two positions by a cam 25 so as to be in the position shown except at the beginning and end of the stroke.
Patent GB-207476-A (GB)
Title: Manufacture of vat dyestuffs derived from anthraquinone
IPC: C09B5/24
Filed: 1923-04-30
Abstract: Brown vat dyes are obtained by first condensing a derivative of 1 : 2-naphthoquinone containing a mobile substituent with an o-diamino-anthraquinone and then condensing the product with a mono- or dia -aminoanthraquinone.  According to examples, the following components are employed:-3- or 6-brom-1 : 2-naphthoquinone, 2 : 3- or 1 : 2-diaminoanthraquinone, and 1-amino- or 1 : 5-diamino-anthraquinone.
Patent GB-538179-A (GB)
Title: Apparatus for testing tension of wire ropes
IPC: G01L5/04
Filed: 1940-01-12
Abstract: 538,179. Tension indicators. WHITE, H. T. July 12, 1940, No. 11663. Convention date, Jan. 5, 1940. [Class 106 (ii)] Comprises a base, a pair of bridges on the base, means for securing a section of rope on the bridge and means for producing a tonal pitch corresponding to the tone produced by the section of rope when vibrated. The base 5 which is made of cast aluminium or other material and may be made hollow to amplify tone is provided with two bridges 8, 9 having concave seats to receive the section of wire rope 12 to be tested. The apparatus is anchored to the rope and the latter pressed on to the bridges by clamping nuts 13, 14 threaded on bolts 15, 16 fixed to the base. Parallel with the rope is a standard tension wire 7 anchored at 21 and passing over bridges 22, 25 to a tensioning key 26. A number of frets 30 are provided underneath the tuning wire. In use the wire rope is vibrated and the fingers passed up and down the wire 7 pressing it on to the frets until one is found where the wire is in tune with the vibration of the rope.
Patent GB-128967-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: ENRIETTI CARLO
IPC: F02B75/24
Filed: 1917-08-15
Abstract: 128,967. Enrietti, C. Aug. 15, 1917. Valve-gear.-In an engine of the type described in Specification 150/07, and having a number of groups of cylinders arranged as shown in Fig. 3, cam shafts Q which extend throughout the length of the engine are actuated by auxiliary shafts U" which gear with a vertical shaft O<111> geared to the crank-shaft.
Patent GB-104116-A (GB)
Title: Elevator Catch Gear.
Inventor: MOYER JACOB THOMAS
IPC: B66B5/26
Filed: 1916-08-22
Abstract: 104,116. Moyer, J. T. Aug. 22, 1916. Catch-gear of mine-cage type.-If the lifting-rope breaks, the elevator is supported by a pair of arms 27 engaging fixed racks 12. The arms 27 are operated by a wedge 19, to which the lifting-rope is attached. The wedge is depressed by a spring 26 when the rope breaks. The arms 27 are retracted by links 31. The wedge is provided with lateral guiding-projections and with a plate having tongues 24 riding in slots 23 in side plates 22 to limit the upward movement of the wedge.
Patent GB-289100-A (GB)
Title: Improvements in optical-projection apparatus
IPC: G03B21/00
Filed: 1928-04-23
Abstract: 289,100. SÚe, (nÚe Kauffmann), F. Maya-, Martinet, F. L., and Touzet, G. A. April 21, 1927, [Convention date]. Reel and endless-web apparatus; optical-projection apparatus, applications of.-An endless film h is moved intermittently across an optical-projection lantern gate, the interval of rest being sufficiently long to permit the displayed image to be inspected, by mechanism comprising a pinion a gearing with a slidable unit b carrying pins c, d. The pin d engages a pin f on a pinion e gearing with a slidable unit j, and the pin c engages a pin i on a film-driving drum g. In operation, the pin d on the constantly-rotating unit b drives the unit j, causing a stud k thereon to engage a fixed incline l and force the units and b laterally till the pins c, i engage. Travelling of the film h then takes place till a notch V on the film actuates a member m, which displaces the units j and b laterally in the opposite direction and frees the drum g, thus allowing the film to stop till the stud k again contacts with the incline l. The shaft of the drum g drives through gearing two distributing drums s, s<1>. which respectively draw the film from the centre and pass it on to the outside of a. closed reel of film passing round rollers. Rollers t, t<1> on the drums s, s<1> change their positions if the film breaks, and cause a tilting mercury switch u to break the electric light circuit. The pinion a is driven by a worm a, which carries a gate-cooling fan and a centrifugal device which cuts off the lighting current by a tilting mercury switch r when the apparatus stops.
Patent GB-544616-A (GB)
Title: Improvements in or relating to circuit arrangements including discharge tubes
IPC: H03F3/28
Filed: 1940-07-19
Abstract: 544,616. Valve amplifying circuits. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philins' Gloeilampenfabrieken). July 19, 1940, No. 11936. Addition to 491,063. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 23, 1941.] [Class 40 (v)] Valves having auxiliary electrodes emitting secondary electrons with the output impedance connected between the secondary emitting electrode and the anode as claimed in the parent Specification are arranged in push-null. Fig. 2 shows an arrangement in which the secondary emitting electrode 6 of one valve is connected to the same end of the load impedance 12 as the anode 51 of the other valve, resistance 14 shunted by condenser 15 serving to obtain the requisite positive voltage as in the parent Specification. If the parts of the load impedance on either side of the supply point 13 are constituted by selective circuits covering different frequency ranges the arrangement may be used to separate the supplied oscillations into two frequency ranges e.g. vision and sound frequencies in television.
Patent GB-610985-A (GB)
Title: Improvements in and relating to wire coating dies
IPC: B05D7/20
Filed: 1946-04-18
Abstract: 610,985. Coating wires. BRITISH THOMSON-HOUSTON CO., Ltd. April 18, 1946, No. 11978. Convention date, April 24, 1945. [Class 140] A die for coating a wire as shown ir Fig. 2 comprises four side members each consisting of a head portion 51, Fig. 5, provided with a bore 59 and an adjustable rod 53 which engages the wire either with the smooth surface 57 or the the grooved portion 56. The heac 51 carries two spaced arms 52 which hole the rod 53 by screw 55 in the adjusted position and also an extended bar 62 for receiving an adjusting screw 61. As assembled in Fig. 2, the rod of one side member is slidably mounted in the bore of another member and two springs 60 and a clip 65 bias opposite pairs of members towards each other. Specification 611,002 is referred to.
Patent GB-638299-A (GB)
Title: A method of manufacturing porous building elements
IPC: C04B38/06
Filed: 1947-05-03
Abstract: Porous building elements are prepared by incorporating bodies of combustible material, prepared by causing a quantity of finely divided combustible material to cohere, with the plastic raw material of said elements, which is preferably clay, or a mixture of clay and sand, or kaolin, forming building elements from this mixture, and drying and burning the formed elements.  The combustible bodies, all the dimensions of which are preferably not less than 1/10 inch and not more than 1/2 inch, may be irregular or may have a regular geometrical form, e.g. that of a sphere, an ellipsoid, a cylinder, a pyramid or a cube, and may be produced by mixing sawdust, peat dust or coal dust with cellulose ether glue.  Specification 638,329 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 638,329 and also refers to the use of solid pieces of combustible material such as chopped wood.  This subject-matter does not occur in the Specification as accepted.
Patent GB-771831-A (GB)
Title: Improvements in or relating to hydraulic governor systems
Inventor: WYNNE CHARLES HORACE LIONEL
IPC: G05D13/00
Filed: 1954-04-26
Abstract: 771,831. Fluid-pressure servomotor-control systems; valves. NAPIER & SON, Ltd., D. April 14, 1955 [April 26, 1954], No. 12071/54. Addition to 724,023. Class 135. In an hydraulic speed regulator for controlling the fuel supply to the injection pumps of an I.C. engine as described in the parent Specification, the sleeve 23 and spring 22 associated with the stop piston 10 of that Specification are omitted and the pressure-reducing valve is of modified construction. The valve comprises a movable element 14 loaded by a spring 19 and slidable on a fixed guide-rod 17. Small diameter holes 16 in a flange 15 of the element ensure a small constant flow rate at low engine speeds causing rapid rising of the stop piston 25 to reduce progressively the permitted fuel to the engine to avoid excessive cylinder temperatures. At speeds above a predetermined speed the valve unseats and regulates the engine in the usual manner. At a higher predetermined speed a stop 21 is encountered to limit the opening of the valve to maintain again a constant flow rate which in this case increases the permitted fuel to the engine to compensate for fuel and mechanical losses at high engine speeds.