baber/WOPTO huggingface dataset:
Patent GB-1525207-A (GB)
Title: Mounting devices for printed circuit boards
IPC: H05K7/20
Filed: 1977-03-04
Abstract: 1525207 Printed circuit assemblies A D CALABRO 4 March 1977 [17 Dec 1976] 09134/77 Heading H1R A mounting device 20 for a printed circuit board 10 comprises an elongate U-shaped cross-section support member 24 having an element 36, depending from one of two flanges 32, 34, against which a mounted printed circuit board is forced by spring arms 42 carried on a strip mounted within the support member 24. The mass of element 36 is substantially greater than the mass of each arm 42 to facilitate heat transfer from the board to element 36. A number of mounting devices may be secured to a metallic sheet 22 by rivets or screws, or, alternatively, they may form part of a unitary aluminium extrusion having a common base, Fig. 3 (not shown). Reference is made to Specification 1,491,599.
Patent GB-635713-A (GB)
Title: Radiator
IPC: F28F1/26
Filed: 1947-04-03
Abstract: 635,713. Heat-exchange elements. GATTA, F., CAMPIONI, A., and CANDELLERO, A. April 3, 1947, No. 9173. Convention date, April 6, 1946. [Class 64(iii)] [Also in Group XXII] The elements of a motor vehicle radiator are formed by separate conduits of flattened cross-section provided with cooling fins which are formed on the face of the blank from which the element is manufactured before the blank is deformed to make the element. In one form (Fig. 3), the fins 2 are formed on a tube 1 by rolling, the tube then being deformed to the cross-section shown in Fig. 5. Alternatively, fins 6 are formed on a ribbon 3 (Fig. 9), by making angular slits in the surface of the ribbon and bending the tongues thus formed through 90 degrees. In one form, two parallel rows of fins are formed on the ribbon which is then bent along a longitudinal line lying between the rows to form an externally finned element. In another form a single row of fins is formed on the ribbon which is bent along a transverse line lying between two adjacent fins to form an internally finned element, adjacent elements being connected by rolling or welding along their abutting edges.
Patent GB-1533532-A (GB)
Title: Water-soluble phenol/formaldehyde condensation products
IPC: C09K23/52
Filed: 1977-03-04
Abstract: 1533532 Sulphonated phenol/formaldehyde condensates BAYER AG 4 March 1977 [8 March 1976] 09203/77 Heading C3R A water-soluble condensation product of phenol, formaldehyde and a bisulphite is prepared by a process which comprises reacting a mononuclear phenol/formaldehyde/bisulphite condensation product with formaldehyde or a formaldehyde donor and, optionally, a nitrogencontaining compound which can react with at least 2 equivalents of formaldehyde. The mononuclear condensation product is monomeric with respect to phenol and is obtained by reacting phenol, formaldehyde and a bisulphite, generally in a molar ratio of 1 : 0À9- 1À1 : 0À9-1À1, in any sequence, in an aqueous medium in the presence of a basic catalyst; for example, (1) by reacting phenol and formaldehyde to give a mixture of mono-, di- and tri-methylol phenols which is subsequently reacted with the bisulphite, or (2) by adding the bisulphite before the completion of the phenol/ formaldehyde reaction, or (3) by reacting phenol with an alkali metal or alkaline earth metal hydroxymethane sulphonate in a molar ratio of 1 : 0À9-1À1. In the further condensation of the mononuclear condensate preferably 0À8 to 1À1 mols of formaldehyde or a mixture of 0À8 to 4À0 mols of formaldehyde and 0À1 to 2À0 mols of the nitrogen-containing compound are used per mol of phenol. The nitrogen-containing compound may be first reacted with formaldehyde prior to reaction with the mononuclear condensate. The further condensation may be carried out in an aqueous alkaline, neutral or acid medium. The bisulphite is suitably an alkali metal or alkaline earth metal bisulphite. The formaldehyde donor is suitably paraformaldehyde. Suitable nitrogen-containing compounds are alkylureas, carboxylic acid amides, ureides, carbamic acids, melamines and preferably urea. The resulting product is an aqueous solution which may evaporate to a powder. Uses.-Dispersing agents, particularly for dyestuffs.
Patent GB-566775-A (GB)
Title: Improvements in or relating to the silencing of air and other gaseous currents in ducts and tunnels
IPC: E21F1/04
Filed: 1943-06-09
Abstract: 566,775. Silencers for gaseous currents. STANTON, R. W. June 9, 1943, No. 9234. [Class 7 (ii)] A silencer for gaseous currents comprises a duct triangular in cross-section and lined with sound-absorbing material. A number of such ducts may be laid side-by-side and communication between adjacent ducts be provided.. Fig. 2 shows two ducts of equilateral triangular cross-section and having a common wall 23. The ducts may be formed in sections of which alternate ones 24, Fig. 5, are formed from plain rectangular panels, while the intermediate sections have the common panel 38 cut in half diagonally to provide a triangular port opening from one duct to the other, a deflector 29, 37 having the shape of an isosceles triangle being secured to the walls of the duct at its base and one side and to the hypotenuse of the triangular common wall at its remaining side. Sound-absorbing material is disposed on the front face of the deflector. When six ducts are assembled to form a hexagonal tunnel, each duct communicates with one adjacent duct only. As shown in Fig. 17, twenty-four ducts compose the tunnel.
Patent GB-1356364-A (GB)
Title: Pumping unit
IPC: F04D29/04
Filed: 1972-02-29
Abstract: 1356364 Borehole pumps SIGMA LUTIN NARODNI PODNIK 29 Feb 1972 9337/72 Heading F1C A borehole pumping unit comprises a pump 8 driven by a long driving shaft from a motor 1, has first bearing means 4 arranged below and associated with the motor and second bearing means 6 arranged above and associated with the pump; the portion of the shaft between the bearings being unsupported radially. The bearings are supported in a tube 5 which carries the discharge of the pump. The shaft is also supported in a bearing 10 and bush 7. Each bearings 4, 6 or either of them, may comprise more than one bearing: The motor 1 may be an electric motor or I. C. engine and the pump is provided with a strainer 11.
Patent GB-252681-A (GB)
Title: A method of producing charts for testing colour vision
IPC: A61B3/06
Filed: 1926-04-09
Abstract: 252,681. Schaaef, E. May 28, 1925, [Convention date]. Sight - testing apparatus. - Grouped patches of colours on a single chart used for testing colour vision are formed of variously formed hatchings of fine coloured lines of the base colour, intercrossed one or more times, or by employing dots &c. By varying the disposition, thickness, and directness of the lines forming the patches a large number of shades can be obtained with a single base colour. As an example polygons a' . - a' of one series, say red, are associated with another series of polygons, b<1> - - b<4> of another colour, e.g. green, the various polygons being formed various cross-hatchings, giving four red tints and four green tints.
Patent GB-579802-A (GB)
Title: Improvements in direct current dynamo electric machines
IPC: H02K23/00
Filed: 1940-05-29
Abstract: 579,802. Cores for dynamo-electric machines. HOSEASON, D. B., WEST, H., SMITH, D., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 29, 1940, No. 9433. Drawings to Specification. [Class 35] The weight of active material in a continuouscurrent salient-pole machine of a given output with an armature diameter not less than 6 ins. is reduced by increasing the total flux per pole by decreasing the air-gap to a specified length, increasing the armature iron section by using a ratio of slot width to pitch not exceeding 45 per cent. and increasing the section of the main poles while reducing their axial length. In the case at least of armature diameters below 16 inches the slots are partially closed. By these means the weight of active material, and especially that of the excitation copper, is reduced by not less than 7¢ per cent, in comparison with that of current practice. The maximum air-gap length for armature diameters between 6 and 18 ins. is 0.5 per cent. of the diameter and for machines of diameters above 18 ins. and with slot width/pitch ratios not above 45 per cent. and preferably not less than 30 per cent. it is 0.06 ins. plus 0.186 per cent. of the diameter. With armature diameters less than about 16 ins. the slot openings are preferably not greater than one-half of the slot width at the gap end. Tapered slots are preferably used, but in large machines they may be parallel-sided. Narrow interpoles and graded air-gaps may also be used. Savings in the total motor weights of from 7¢ to 35 per cent. and in the copper weights of from 23 to 63 per cent. are stated to be effected and comparative analyses of weights and dimensions for two comparable machines made according to existing practice and to the invention, are given in the Specification. Specification 117,934, [Class 35], is referred to.
Patent GB-378057-A (GB)
Title: Improved manufacture of abrasive coated materials
IPC: B24D11/00
Filed: 1931-03-28
Abstract: 378,057. Sandpaper &c. BEHRMANNING CORPORATION, Troy, New York, U.S.A.-(Assignees of Schacht, E. C. ; 20, Hawthorne Avenue, Troy, New York, U.S.A.) March 28, 1931, No. 9487. Convention date, July 14, 1930. [Class 60.] In the manufacture of abrasive coated materials, for example, sandpaper, the paper &c., after it has been treated with adhesive and given a deposit of abrasive grains, is subjected to the influence of an electric field whereby the grains are oriented individually on the paper to present their sharpest surfaces outwardly. The sheet 10 of paper is coated with adhesive at 14, receives the abrasive at 19, sheds excess abrasive at 20 and is then subjected to the electric field between a tubular or other electrode 22 and an earthed electrode 23, which is located on the inoperative face of the sheet. The treatment by the electric field may be repeated at 28, 29, and again if desired at 30, 31. The electrode 22 may be rotated ; one of the electrodes may be adjustable to vary the gap between them.
Patent GB-1413598-A (GB)
Title: Kitchen waste or refuse containers
IPC: B65F1/14
Filed: 1973-02-27
Abstract: 1413598 Packages POPEIL BROS Inc 27 Feb 1973 [6 March 1972] 9525/73 Heading B8C [Also in Division A4] A waste container and packer 10 comprises an open top receptacle 11, including inner and outer walls 19, 21 joined at their upper ends to form a peripheral rim 22 bounding the open top, a plunger 13 reciprocably movable in the receptacle 11 and a seat 17 secured to the plunger 13 and covering the open top of the receptacle 11 when the plunger 13 is in a retracted position, whereby refuse placed in the receptacle 11 is compressed by a person sitting on the seat 17. The receptacle 11 is made of a plastics material, the wall 19 is flared upwardly, and the wall 21 diameter tapers upwardly. The lower end of the wall 21 has an integral annular base 24 with an upper shoulder 26 and a concave outer surface 27. The plunger 13 and the base 23 of the receptacle 11 define a compartment 28 therebetween. The open upper end 16 of the plunger 13 terminates in a flange 29 which is secured by screws 31 to a frame 32. The screws 31 also secure a flange 34 from which a skirt 33 depends outside the wall 21. The lower end of the skirt 33 rests on the shoulder 26 in the retracted position and is flared so that it smoothly joins the surface 27. The skirt 33 is longer than the plunger 13 so that the skirt 33 may, alternatively, rest on the floor. A covered foam rubber cushion 38 is secured to the frame 32. A flexible water-resistant liner 51 is placed in the receptacle 11 with its top folded over the rim 22 and secured thereto by a resilient split ring, 43, which has a U-shaped cross-section and clips over the rim 22. The inner leg 44 of the ring 43 engages the plunger 13 and the outer leg 47 has a bead (48), Fig. 2 (not shown), which engages a circumferential recess 49 in the rim 22 thereby locking the snap-ring 43 on the rim 22.
Patent GB-871836-A (GB)
Title: Improvements in or relating to methods of synthesizing 2, 4, 4, 4-tetrachloro-butyric acid
IPC: C07C51/16
Filed: 1958-03-25
Abstract: 2,4,4,4-Tetrachlorobutyric acid is prepared by reacting carbon tetrachloride with allyl acetate in the presence of a peroxide or other catalyst capable of releasing free radicals or of ultra-violet light, the reaction being carried out by bringing the reactants together very gradually, whereby 2,4,4,4 - tetrachlorobutyl acetate is formed, converting the said acetate into 2,4,4,4-tetrachlorobutanol by alcoholysis of the acetate in the presence of 0.001 to 0.1 moles of hydrochloric, sulphuric or phosphoric acid per mole of the acetate, and oxidation of the tetrachlorobutanol to 2,4,4,4-tetrachlorobutyric acid with from 25 to 100% excess chromic anhydride in solution in aqueous acetic acid over a period of at least 5 hours, the reaction mixture being strongly cooled during the addition of the chromic anhydride and then left at room temperature for a time necessary for the formation of the tetrachlorobutyric acid, or held at a temperature of 30 DEG  to 40 DEG C. for from 1 to 2 hours.
Patent GB-570245-A (GB)
Title: Improvements relating to self-loading firearms
IPC: F41A5/18
Filed: 1943-06-15
Abstract: 570,245. Automatic smallarms. TRIGGS, W. W. (Western Cartridge Co.). June 15, 1943, No. 9572. [Class 119] The short-stroke piston 27 of a gas-operated automatic smallarm impacts the cross-head 29 of the action-slide 31 and drives it rearwardly in operation to the spring 41 to operate the gun. In order to protect the stock 15 from gases and hot particles escaping from the cylinder 22, the cross-head is extended forwardly as a cylindrical trough 30 enveloping the cylinder, as shown in Fig. 5, the side walls of the trough being grooved at 36 to receive guide ribs 37 on the barrel 19.
Patent GB-166189-A (GB)
Title: An instrument for the rapid and exact measurement of capacity and calibration of electrical condensers
IPC: G01R27/02
Filed: 1918-06-12
Abstract: 166,189. Taggart, J. Scott-. June 12, 1918. Frequency, inductances, a n d capacities, measuring.-In apparatus for detecting changes of frequency of oscillations, for measuring capacity or inductance, or for calibrating condensers, two sets of locally generated oscillations are produced by two thermionic valves, the oscillations being arranged to interact so that a change in frequency of either produces beats, or a change in frequency of existing beats, which actuate an indicator. In the arrangement shown for measuring capacity, one oscillating valve circuit A comprises a standard condenser C<1>, and a second oscillating valve circuit B, coupled with the circuit.A, comprises a variable condenser C<2>, and a telephone receiver D. When the adjustment of the condenser C<2> is such that the oscillation frequencies of the circuits A, B differ slightly, audible beats, rectified in the valve of the circuit B, are heard in the receiver D. When the frequencies are exactly equal, the beats are not produced, and a graduation is then made on the condenser C<2> corresponding with the capacity of the condenser C'. The process is repeated with standard condensers of different capacities, so as to obtain a series of graduations on the condenser C<2>. The capacity of a condenser may then be measured by inserting the condenser in the circuit A in place of the standard condenser C<1>, and adjusting the condenser C<2> until no beats are produced. In order to compare inductances, the circuits A, B are balanced as before, and the unknown inductance is then inserted between the condenser C' and an inductance L in the circuit A. The extent to which the circuit B requires to be retuned will be a measure of the unknown inductance.
Patent GB-371898-A (GB)
Title: Improvements relating to steam boilers
IPC: F22B1/18
Filed: 1930-12-29
Abstract: 371,898. Indirectly heated steam boilers. REID, J., 4, Lloyds Avenue, London. Dec. 29, 1930, No. 9664. [Class 123 (ii).] Boilers heated both by furnace and exhaust gases from Diesel engines of the kind in which both gases are passed together through the boiler tubes have tubes m projecting into the boiler tubes e for introducing the exhaust gases from a trunk g. Heat absorbing devices may be inserted in the tubes m and spiral or inclined fins arranged on their inner ends to cause the furnace gases to swirl.
Patent GB-782295-A (GB)
Title: Improvements in or relating to light transmitting elements for use in gonioscopy
IPC: A61B3/117
Filed: 1955-04-04
Abstract: 782,295. Eye examining apparatus. CLARKE, Ltd., C., FINCHAM, E. F., and DOBREE, J. H. April 4, 1956 [April 4, 1955], No. 9749/55. Class 97(1) A gonioscopic element for use in the ex- :amination of the angle D<SP>1</SP> of the anterior chamber D of the human eye, has a concave boundary surface A<SP>1</SP> substantially shaped to fit the cornea B of the eye and plane reflecting surfaces E<SP>1</SP>, F<SP>1</SP> inclined to one another at an angle between 25 and 37¢ degrees and arranged so that, when the element is placed upon the cornea, the surface E<SP>1</SP> makes an angle not greater than 10 degrees with the axis of the eye, the surface F<SP>1</SP> cuts such axis and a principal ray C from the angle D<SP>1</SP> of the eye will be transmitted by the contacting surfaces A' and B and successively reflected by the surfaces E<SP>1</SP>, F<SP>1</SP> to emerge approximately in line with the axis of the eye. The element may be formed by a single block of transparent material mounted in a holder G, the surface E<SP>1</SP> being coated to be reflecting. Alternatively the surface A<SP>1</SP> may be provided as a thin member closing the end of the holder G which supports the plane reflectors E<SP>1</SP> and F<SP>1</SP>. The element may be used with a slit lamp apparatus.
Patent GB-954712-A (GB)
Title: Valve means for controlling the flow of a fluid
Inventor: HOLT ALEXANDER ALARIC
IPC: F16K27/06
Filed: 1962-03-14
Abstract: 954,712. Valves. GASKELL & CHAMBERS Ltd. March 12, 1963 [March 14, 1962], No. 9758/62. Heading F2V. A rotary, conical plug with a transverse bore 13a is turned between open and closed positions, defined by fixed stops 17 which coact with an abutment 16 on the plug, by a forked handle 18 the two arms of which are received in transverse bores in projecting bosses 14 at each end of the plug. One of the bosses 14 may carry a spring-loaded washer engaging a flat portion of one of the arms for locating the handle. An outlet tube 12 extends from the body 10 on the side opposite to the handle. A plug 20 may be removed for cleaning the fluid passageway.
Patent GB-682925-A (GB)
Title: Improvements in or relating to a bed
IPC: A47C17/23
Filed: 1949-07-05
Abstract: 682,925. Bed-settees. SIMMONS CO. July 5, 1951 [March 2, 1949], No. 9763/51. Divided out of 682,865. Drawings to Specification. Class 52(ii) A bed-settee comprises a stationary frame, at least two hingedly-connected foldable bed sections, a retractable spacing element pivoted to one of the sections and engageable with another section when the sections are folded in settee position and an operative connection between the spacing element and the other section so that the relative folding of the sections is effective to dispose the spacing element in engaged position. The construction is described with reference to drawings in Specification 682.865, Specifications 682,865 and 682,924 are referred to.
Patent GB-291570-A (GB)
Title: Improvements in or relating to furnaces
IPC: C21D9/00
Filed: 1927-04-09
Abstract: 291,570. Procter, H. A. April 9, 1927. Tunnel furnaces.-A tunnel annealing furnace is heated by burning pulverulent fuel in chambers b separate from, but communicating with, the tunnel chamber a. The combustion chambers may be at the sides of the tunnel, as shown, or may be otherwise situated, for example at the top or ends, and they may be fitted with baffles arranged to cause the heating- gases to take a zig-zag path. A large combustion chamber may be divided into a number of independently fired sections.
Patent GB-1465425-A (GB)
Title: Flight training assembly
IPC: G09B9/08
Filed: 1975-03-10
Abstract: 1465425 Flight training J R BEDE 10 March 1975 [16 Sept 1974] 9947/75 Heading B7W [Also in Division E2] For the purpose of flight training a winged aircraft, preferably devoid of its power plant, is pivoted about its centre of gravity F to the end of a boom B which is pivoted to a wheeled vehicle A, the vehicle being capable of moving along the ground at a speed sufficient for the aircraft to take off. The boom is biased upwardly by means of springs 50 to reduce the lift necessary to achieve take-off. The boom is pivoted to the vehicle about horizontal and vertical axes D and E, and abutments 36 and dampers 44 are provided to limit the pivotal movements. The aircraft is universally mounted on the boom and selective abutments (94, 102), Fig. 5 (not shown), are provided to limit pivoting to selected axes.
Patent GB-1508282-A (GB)
Title: Circuit arrangements for adjustable equalizers
IPC: H03G5/02
Filed: 1976-03-12
Abstract: 1508282 Adjustable equalizers TEKADE FELTEN & GUILLEAUME FERNMELDEANLAGEN GmbH 12 March 1976 [22 March 1975] 09965/76 Heading H3U In an adjustable equalizer circuit having an input U1 applied across a resistance divider R a1 , R a2  and across the stators of differential capacitors C 1 -C n  whose rotors are connected via respective variable series resonant circuits to the tapping point 2 of the resistance divider, there are provided serially connected decoupling resistors R 13 , R 23 , R 33 ... between the rotors of capacitors C 1  and C n , with the rotors of the intermediate capacitors being connected to respective junctions between the decoupling resistors. An output is taken from points 2, 2<SP>1</SP> across R a2 . To prevent wide variations in input resistance, some of the capacitors have equal resistors, e.g. R 12 , in series with their stators, and such a combination may be supplemented by a dual circuit 2R 12 , L 11  also connected across the input. In modifications, resistors such as R 1  1  in  the   circuit   to   tapping   point   2  may supplement or replace resistors such as R 12 . In addition, some of the input and output connections to capacitors C 1 -C n  may be via transformers, Fig. 2 (not shown).
Patent GB-445979-A (GB)
Title: Improvements in and relating to pumps for use more particularly in braking and retarding apparatus
IPC: F04B19/02
Filed: 1934-07-13
Abstract: 445,979. Oscillating-cylinder pumps. WILSON, A. G., 23, Queen Anne's Gate, Westminster. July 13, 1934, No. 9995/35. Divided out of 427,385. Drawings to Specification. [Classes 8 (i) and 102 (i)] [See also Group XXXIV] The pump is the same as that shown in Fig. 6 of Specification 427,385, and is stated to be applicable for operating brake shoes or brake bands in a preselective gear-box. Specifications 402,778 and 402,794, [both in Group XXIV], are referred to.
Patent HK-102991-A (HK)
Title: Rotary device,apparatus and method for treating molten metal
Inventor: DUENKELMANN DIETGER
IPC: C22B21/06
Filed: 1991-12-19
Abstract: A rotary device for dispersing gas in molten metal comprises a hollow shaft (1) and a hollow rotor (2) attached to the shaft (1), the rotor (2) having a plurality of vanes (11) extending from the shaft (1) towards the periphery of the rotor (2) and dividing the rotor (2) into a plurality of compartments (C), each compartment (C) having an inlet (9) adjacent the shaft (1) and an outlet (10) adjacent the periphery of the rotor (2), and the rotor (2) having means for passing gas from the discharge end (8) of the shaft (1) into the compartments (C), wherein the discharge end (8) of the shaft (1) opens into a manifold (M) in the rotor (2) and the inlets (9) for the compartments (C) are present in the wall (6a) of the manifold (M). When the device is rotated in molten metal contained in a vessel and gas is passed down the shaft (1), metal is drawn into the manifold (M) and breaks up the gas stream emerging from the shaft (1) into very small bubbles. The gas/metal dispersion flows into the compartments (C) through the inlets (9) and out through the peripheral outlets (10) and the gas is dispersed through the whole body of molten metal.