baber/WOPTO huggingface dataset:
Patent GB-921561-A (GB)
Title: Improvements relating to the production of electrodes
Inventor: WORN DAVID KENNETH
IPC: H01M4/80
Filed: 1961-01-30
Abstract: A composite porous sintered strip is formed by rolling a metal powder such as nickel, iron or stainless steel, sintering the strip to produce a rough surface and then applying nickel powder to both faces of the strip and resintering.  The strip is preferably formed by rolling A type Ni powder in 2.5 cm. diameter rolls to form a strip 0.1 mm. thick and sintered at 1150 DEG  C. to give a porosity of 20% to 30%.  The Ni powder for coating the strip is B type powder with a low bulk density 0.6 to 1 gm./c.c. and a particle size of about 3 microns.  The B type powder is spread on the strip to give a coating of 0.1 to 1 mm. thickness and sintered in hydrogen at 800 DEG  to 1000 DEG  C. to give a porosity of 70% to 85%.  According to the Provisional Specification, methyl cellulose may be mixed with the nickel powder forming the base strip to produce a porosity of 20-50%. Specification 687,569 is referred to.
Patent GB-231139-A (GB)
Title: Improvements in or relating to rotary kilns and methods of operating them
IPC: F27B7/34
Filed: 1925-02-09
Abstract: 231,139. Fuller Lehigh Co., (Assignees of Fuller. J. W.). March 19, 1924, [Convention date]. Pulverulent-fuel furnaces. - To allow fuel of low volatile content to be used in rotary furnaces and kilns, particularly cement kilns, the discharge end 4 of the kiln is arranged to project into a combustion chamber 5 supplied with a jet of pulverulent fuel through a vertically disposed burner 18 so that the flame &c. takes an indirect path to the kiln entrance. The air supply for combustion enters through an aperture 17 surrounding the burner, ports in the wall 11 of the chamber 5 and an inlet 12, the latter being so arranged that the entering air is heated by contact with the hot material 8 which on discharge from the kiln 4 slides by gravity down the inclined floor 7 of the chamber 5 to a trough 9. The air supply ports are controlled by sliding valves 19, 15, 16 and 13 respectively. A modification is described in which the inclined floor 7 is replaced by an endless conveyer and additional burners, arranged one on each side of the burner 18 and supplied, if desired, with fuel of high volatile content, are arranged to project horizontally through the wall 11 of the chamber 5.
Patent GB-282233-A (GB)
Title: Improvements in or relating to apparatus for removing dust and other solid matters from air and other gases
IPC: B01D47/06
Filed: 1927-02-09
Abstract: 282,233. Hall, D., Kay, J. H., and Hall & Kay, Ltd. Feb. 9, 1927. Air and gases, treating with liquids. -Air or gas passes inwards through the surface of a horizontal rotary filter drum 6<a> ; the coarser impurities remain in the compartment 4a containing the drum, which is cleaned by a rotary scraper 9; the air passes into a compartment 4b, in which it is washed by vertical sprays 11 and impinges on louvers or vertical baffles 12 moistened by sprays 13; final dust removal is effected by zig-zag filters 15; the air may then be dried, moistened, &c. in a conditioning plant 16. The used water collects in a sump, in which a filter drum 17 is rotated or oscillated from the scraper shaft. Clean water for re-use is pumped from inside the filter. A ball valve maintains a constant water level in the sump.
Patent GB-664922-A (GB)
Title: Improvements in or relating to a linkage for controlling the movement of a picker stick of a fly shuttle loom
IPC: D03D49/38
Filed: 1949-02-10
Abstract: 664,922. Picking motions for looms. HOUDAILLE-HERSHEY CORPORATION. Feb. 10, 1949 [Sept. 24, 1948], No. 3656/49. Class 142(iii) [Also in Group XXXII] A linkage (Fig. 1) for operating a picking stick of a weaving loom incorporates a hydraulic check unit for controlling the stick at each end of its travel. The picking stick 13 is bolted to a secondary bracket 12 which is connected by jointed links 14 and 15 in pairs to a primary bracket 11 rigidly secured to the rock shaft 10 of the loom. The links are of such length that the picker will move in an approximately horizontal path. Adjustably secured to the bracket 11 is a check unit 20, Fig. 3, comprising a cast housing 21 divided by an arcuate wall 21b into a hydraulic chamber 21c and reservoir 21d. And piston 23 having a vane portion 23b operating in the chamber 21c is secured to a pivot 17a which is in turn keyed to the links 14, so that movement of the picker stick results in corresponding angular movement of the vane. To avoid checking of the stick in the middle of its stroke the wall 21b is recessed along part of its arcuate face 21e as at 21f, and holes 21g are provided to communicate with the reservoir. A one-way valve consisting of a spring-loaded plunger 25 is provided in a passage 21h between one end of the chamber 21c and the reservoir 21d. As the picker begins its stroke, fluid may pass the valve and prevent resistance throughout the initial portion of the power stroke.
Patent GB-1394404-A (GB)
Title: Production of pipes with internal helical fins
IPC: F16L9/00
Filed: 1973-01-24
Abstract: 1394404 Drawing J S STAROSTIN V I PLOKHOV V K EROKHOV V P IVANOV V N KROTKOV A V ANISIMOV R N AJUPOV and M F GOLOVINOV 24 Jan 1973 3674/73 Heading B3P [Also in Division F2] A pipe 9 having internal helical fins 10 is made by drawing and rotating a pipe blank 1 having straight, longitudinal fins 2 through a drawing die 3 which alters the cross-sectional shape of the blank 1 to prevent it slipping relative to the die 3 and then further drawing the blank 1 without rotation to produce the desired cross-sectional shape. A circular pipe blank 1 is drawn through the die 3, which is rotated via a worm gear 4, to produce an oval pipe 5 which is twisted before passing through a fixed second die 8 for drawing the pipe 5 back to a circular shape. The finished pipe 9 may have a fin thickness of not less than 1 mm. The fins may be twisted anticlockwise and clockwise on alternate sections of the pipe.
Patent GB-432583-A (GB)
Title: Improvements in and relating to electric ship propulsion systems
IPC: H02P9/04
Filed: 1934-02-05
Abstract: 432,583. Systems for transmitting mechanical power; supply systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and JEWITT, D. E., 17, Hillmorton Road, Rugby. Feb. 5, 1934, No. 3766. [Class 38 (iv)] Boosting by dynamo-electric machines ; running generators in series.-In a ship propulsion system comprising a plurality of parallel connected A.C. generating units, each unit comprises two " half-size " alternators mounted on the same shaft and driven from a single or two prime movers, separate control of the field of each alternator being provided so that the two machines buck or boost each other. The corresponding phase windings of each alternator are connected in series with each other to the main bus-bars A, B, C and the arrangement is such that no voltage or full voltage is supplied to the main bus-bars whilst the several units are maintained in synchronism through the bus-bars A1, B1, C1. Auxiliary apparatus may be supplied from the bus-bars A1, B1, C1, which may be used for starting the generating sets by using the alternators as starting motors. The propeller motors may thus be manoeuvred or reversed with their reversing switches H, I operating at zero voltage whilst the supply to the auxiliary apparatus is maintained at the bus-bars A1, B1, C1. In Fig. 5 a battery of double alternators is shown connected to a double star or ring connected motor, polarization of all the alternators as shown at 1 producing power transmission and polarization as shown at 2 effecting no transmission. The arrangement may be utilized with 3-phase star or delta windings or with 2-phase machines. Specification 395,780, [Group XXVI], is referred to.
Patent GB-555073-A (GB)
Title: Improvements in or relating to mechanisms for feeding predetermined quantities of powders into containers
IPC: F42B33/02
Filed: 1942-03-23
Abstract: 555,073. Feeding powder to moulds. GOLDING, W. F., and NUELL, A. P. March 23, 1942, No. 3822. [Class 87 (ii)] [Also in Group XVIII] Mechanism for feeding pre-determined quantities of powder into moulds, of the kind comprising a hopper, at the base of which is a plate or slide having a series of measuring holes, is furnished with means for increasing the quantities by first filling the holes with loose powder, pressing it down to form a cavity, and then feeding more powder to fill the cavity. A replaceable plate 4, Fig. 4, with holes 6 blocked by a ring 8, is intermittently rotated to bring the holes in succession beneath a hopper having two discharge orifices 13, 14 fitted with rotary stirrers. Between the orifices 13, 14, at the station 29, is an adjustable plunger 28, Fig. 5, operated by a cam-actuated lever 31 to effect the compression of the already loosely filled holes, the cavities then formed being filled when the holes pass under the aperture 14 ; the holes are discharged by a plunger 35. An oscillating blade is provided for agitating the powder in the hopper and means are provided for disengaging the clutch for operating the ejector in the absence of a mould.
Patent GB-1255596-A (GB)
Title: Thermoplastic moulding compounds
Inventor: BONIN WULF VON
IPC: C08F8/00
Filed: 1970-01-27
Abstract: 1,255,596. Imidized maleic anhydride copolymers. FARBENFABRIKEN BAYER A.G. 27 Jan., 1970 [31 Jan., 1969], No. 3854/70. Headings C3C and C3P. A thermoplastic moulding compound is prepared by the partial imidization of a copolymer of maleic anhydride and an unsaturated hydrocarbon having a substantially alternating structure by reacting from 5 to 95% of the anhydride groups with ammonia and/or a primary monoamine which contains from 1 to 8 carbon atoms so as to form the corresponding cyclic imide groups. In the examples copolymers of isobutylene or ethylene and maleic anhydride are treated with methylamine, ethylamine, cyclohexylamine or ammonia, the copolymer being suspended in benzene or dimethylformamide or dissolved in water. The copolymers may be prepared using azodiisobutyronitrile in benzene or methylene chloride solution. In Examples 7 and 8 foamed products are prepared using azodicarbonamide.
Patent GB-817843-A (GB)
Title: Improvements in and relating to anionic permselective membranes
IPC: D21H17/49
Filed: 1957-02-05
Abstract: In preparing anionic perm-selective membranes for use in the electrodialytic purification of saline water, parchment paper is impregnated, at room temperature, with an aqueous solution of pH 2.5 to 10.0, containing one or more guanidinium salts and formaldehyde, and then dried and cured at a temperature of, at least, 110 DEG  C. Suitable guanidinium salts are the nitrate and chloride, e.g. mixed with the carbonate.  The solution may also contain melamine, or, alternatively, dicyanodiamide mixed, e.g. with furfurol or glyoxal. Ammonium carbonate, chloride or nitrate may be added to the solution. Alternatively, parchment paper may be impregnated with an aqueous solution containing dicyanodiamide, hexamethylene-tetramine, formaldehyde, hydrochloric acid and, if desired, urea.  The unimpregnated parchment paper may be swelled by treating it with strong orthophosphoric acid and then leaching out the acid. Specifications 750,220, 750,238, [both in Group XXXVI], 813,606, [Group VIII], and 813,607, [Group XXXVI], are referred to.ALSO:Parchment paper is impregnated, at room temperature, with an aqueous solution of pH 2.5 to 10.0 containing one or more guanidinium salts and formaldehyde and is then dried and cured at a temperature of, at least, 110 DEG  C. to form an anionic perm-selective membrane. Suitable guanidinium salts are the nitrate and chloride, e.g. mixed with the carbonate.  The solution may also contain melamine or, alternatively, dicyanodiamide mixed, e.g. with furfurol or glyoxal. Ammonium carbonate, chloride or nitrate may be added to the solution. Alternatively, parchment paper may be impregnated with an aqueous solution containing dicyanodiamide, hexamethylene - tetramine, formaldehyde, hydrochloric acid and, if desired, urea.  It is stated that the presence in the impregnating solution of a derivative of cyanamide not containing the guanidine structure, e.g. urea, introduces cross-linkages.  Specifications 750,220, 750,238, [both in Group XXXVI], 813,606, [Group VIII], and 813,607, [Group XXXVI], are referred to.
Patent GB-1495642-A (GB)
Title: Valve devices
IPC: A62B9/02
Filed: 1975-01-29
Abstract: 1495642 Valve for high-altitude breathing DRAGERWERK AG 29 Jan 1975 [29 Jan 1974] 3916/75 Heading A5T [Also in Divisions F2 and G3] A regulator valve for controlling a nutrient fluid supply for high altitude breathing comprises a housing 1 with a pressurised-gas inlet duct 4 and a part 21 connectable to a user, the gas passage through the duct being controlled by a double cone obturator 8, included in a main valve 2, in a widened interior 5 of the housing, valve 2 being opened and closed by a flexible, elastic member 13 which surrounds obturator 8. Exterior to member 13 is a chamber 18 containing an auxiliary valve 3. In use of the apparatus, gas flows into a high pressure part 7 of duct 4, filling an annular space 16 about the foot cone 10 of obturator 8, and into chamber 18 via a regulating aperture 6, and the valve closure member is thus pressed about the head cone 9 of obturator 8, so closing the main valve 2. When the user inhales a diaphragm 25 moves into a control chamber 26 and, by means of a two-arm lever 27, opens a port 19, of auxiliary valve 3, communicating with chamber 18, thus the member 13 is released from head cone 9 and opens the main valve and gas flows through a discharge nozzle 20. At nozzle 20 ambient air is drawn through a chamber 24 via a non-return valve 22. In an alternative embodiment, Fig. 2 (not shown) valve closure member (30) is permanently adapted to the shape of head cone 9 and functions as a discharge nozzle during inhalation and thus nozzle 20 is unnecessary.
Patent GB-1455894-A (GB)
Title: Cutting machines
IPC: B23D36/00
Filed: 1974-01-29
Abstract: 1455894 Automatic control of cutting to length H SIMON Ltd 21 Jan 1975 [29 Jan 1974] 04006/74 Heading G3R In an arrangement for producing or modifying a number of workpieces successively by a machine, a property of each workpiece or a value corresponding thereto is measured and fed to a comparator 17 along with a desired value from a reference source 18, and error signals outside a permitted tolerance band are fed to accumulators 21, 22 which respectively add the errors in the positive and negative directions, a correction signal proportional to the last measured error and in a sense to reduce the error being produced, e.g. by a logic unit 23, when the sum in either of the accumulators reaches a pre-set level, and the two sums being then set to zero. As described the arrangement controls a rotary knife 10, 11 which cuts blanks B from a moving web W, the knife being driven via an infinitely variable gear M whereby the knife speed and blank length can be adjusted. The length of each cut blank is sensed by a roller 12, pulse generator 13, and a counter 14 which also receives a signal at the instant of each cut to define the counting periods. If the sign of the error changes within a set number of cuts, a correction signal is applied immediately to the gear M irrespective of the sums held in 21 and 22. If the arrangement hunts and successive error signals are of opposite sign for more than a set number of cuts, correction signals in one direction are suppressed for several cuts to prevent the production of under-sized blanks.
Patent GB-546006-A (GB)
Title: Improvements in agricultural ploughs
IPC: A01B3/26
Filed: 1941-03-27
Abstract: 546,006. Ploughs. BOMFORD, D. R., and WILMOT & CO., Ltd., S. M. March 27, 1941, No. 4129. [Class 6 (i)] A mould board 5 carrying a share 6 is 'secured to a bracket 7 pivoted to a member 4 at the bottom of a frame consisting of a pair of upper diverging tubular members 2 welded at their rear ends to downwardly directed tubular members united to the member 4. A rod 19 engaging an eye 23 at the top of the bracket is held at its other end by a cranked horizontal shaft 16 which may be rotated by a handle 18 to move the rod longitudinally and tilt the share into or out of its operative position. A skid 31 is secured to the frame. A swivel coulter 34 is adjustably mounted in front of the share. A travelling wheel 35 is mounted between parallel bars 36 pivoted to the frame. The wheel is held in its raised and lowered positions by securing the bars to brackets 38, 39. A tractor is attached to a plate 29 hinged to a swivelling plate 28 on the horizontal arm of a right-angle bracket, the vertical arm of which is so secured to a fixed front plate 9 as to be angularly adjustable.
Patent GB-1169513-A (GB)
Title: Improvements in Laundry Feeding Machines.
Inventor: WEIR HENRY JOHN
IPC: B01L3/02
Filed: 1966-01-31
Abstract: 1,169,513. Ironing-machines. H. J. WEIR. 27 Jan., 1967 [31 Jan., 1966], No. 4265/66. Heading D1A. A feeding mechanism for a laundry ironing machine has grips 6 into which the operator places the corners of an article such as a sheet the grips are then moved into a transfer position by pneumatic cylinders where the corners are held by clamps 4 which move sideways to stretch the leading edge of the article and then move forwards to deposit the article onto a moving conveyor. Interlocking devices are provided to prevent both sets of grips 6 moving into the transfer position at the same time. The grips are spring loaded but the clamps are held together by springs and opened by cams in appropriate positions for taking and releasing the articles. In the transfer position the clamps move in a rearward direction to release the articles from the grips 6. In a modification (not shown) the grips 6 are mounted on pivoted parallel rods and move in an arcuate path.
Patent GB-633858-A (GB)
Title: Improvements in or relating to starters for low-pressure fluorescent tubular lamps
IPC: H05B41/06
Filed: 1947-02-14
Abstract: 633,858. Control systems for space discharge lamps. KNOBEL, F. Feb. 14, 1947, No. 4334. Convention date, March 2, 1946. [Class 38 (iv)] [Also in Group XXXVII] Starting of a fluorescent lamp 21 with heated electrodes, supplied through a choke 18, 26, is effected by a thermal switch (see Group XXXVII), comprising a thin wire 12, included in the lamp circuit which, upon expansion with the application of the starting current, permits a spring-controlled arm 11, which maintains the wire taut to open normally-closed contacts 2, 3 connected between the lamp electrodes and provide the usual starting voltage from the choke. The contacts are then maintained open by the lamp operating current. A condenser 27 is shunted across the lamp to reduce sparking at the contacts and suppress radio interference. A fuse 17 is included in the lamp circuit. The invention may be used with cold electrode tubes.
Patent GB-1506674-A (GB)
Title: Fastener assemblies and pre-load indicating washers therefor
IPC: F16B31/02
Filed: 1976-02-04
Abstract: 1506674 Load-indicating washers COOPER & TURNER Ltd 17 Jan 1977 [4 Feb 1976] 04446/76 Heading F2H [Also in Division B3] A load-indicating washer of the kind having a plurality of integral raised portions 12 deformed out of a plane surface 11 at circumferentially spaced intervals intermediate its inner and outer peripheries 13, 14, the raised portions 12 being plastically yieldable at a predetermined clamping load to permit deformation at least partly back into the plane face 11 to indicate a required tension of an associated bolt, is characterized by a recess 24 between the inner periphery 13 and the face 11 from which the raised portions project, the recess extending in both the axial and radial directions by a distance not less than 10% of the washer thickness. The recess may be formed by a chamfer, as shown, or may be of rectangular or other cross-section, and is intended to receive a radiused junction between the shank and head of a bolt, not shown, and/or a sealing ring or sealing mastic. Preferably the recess extends axially a distance between 20 and 40% of the washer thickness, and has a radial extent equal to its axial extent Œ25%.
Patent GB-125485-A (GB)
Title: Improvements in Goggle Glasses.
Inventor: ROBERTS DAVID
IPC: G02C7/10
Filed: 1918-03-13
Abstract: 125,485. Roberts, D. March 13, 1918. Goggles,. spectacle lenses .-Goggles, more particularly for use in acetylene and electric welding and cutting operations, are provided with glasses the upper part of which is clear and the lower part coloured or damped. The glasses may consists of two half disks, the upper part of clear and the lower part of coloured glass ; or may comprise three sections, the upper part being clear, the lowest of darkest colour, and the middle section being of intermediate colour. Specification 5362/07 is referred to.
Patent GB-1493799-A (GB)
Title: N-cyanosulphonamide resins and products thereof
IPC: C07C311/18
Filed: 1975-02-04
Abstract: 1493799 Laminates CIBA-GEIGY AG 4 Feb 1975 [4 Feb 1974] 04510/74 Divided out of 1493481 Heading B5N [Also in Division C3] Laminates are prepared from polymers obtained by reacting N-cyanosulphonamides of formula with bis-cyanamides of formula where R and R<SP>1</SP> are aromatic, aliphatic, cyloaliphatic or heterocyclic radicals. The starting materials are heated together, optionally in a solvent, to form a resin which may be heated further to give a cross-linked product containing triazine rings. In an example N-benzene sulphonyl phenyl cyanamide and 4,4<SP>1</SP>-methylene bisphenyl cyanamide are heated in solution in methyl ethyl ketone to form a resin solution which is used to impregnate woven polyamide fabric, several plies of the dried fabric then being heated under pressure to form a laminate.