baber/WOPTO huggingface dataset:
Patent GB-259365-A (GB)
Title: Improvements in or relating to electrodes for use in electric arc welding and the cutting of metals
IPC: B23K35/04
Filed: 1925-09-16
Abstract: 259,365. Quasi-Arc Co., Ltd., and Strohmenger, A. P. Sept. 16, 1925. Uniting and dividing by fusion.-Electrodes for arc welding or cutting iron or steel or other metals are wrapped with a yarn or fibre of a silicate having crystals of long fibrous form and containing more than 30 per cent of iron, such as amosite, so as to increase the iron content of the coating. A mixture of amosite, which contains from 30 to 40 per cent of iron and crocidolite which contains 24-28 per cent of iron may be used, preferably in equal parts. A yarn may be formed by carding and spinning fibres of these two minerals together. The yarn may be wound spirally on the electrode and secured thereto by sodium silicate &c. Other materials in solution or suspension may be added by impregnation. The material may be lapped round the electrode without spinning into yarn. When welding with such an electrode the slag is stated to tend to separate from the deposit as the metal cools down from about 200‹ C. to 150‹ C. Amosite may be replaced by grunerite. Amosite is stated to be an orthorhombic amphibole, a variety of ferroanthophyllite and can be replaced by other forms of ferro-anthophyllite. Specification 13538/14 is referred to.
Patent GB-614833-A (GB)
Title: Improvements in x-ray generators
IPC: H05G1/06
Filed: 1946-08-02
Abstract: 614,833. Supply systems for X-ray apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 2, 1946, No. 23131. Convention date, Feb. 8, 1943. [Class 38 (iv)] [Also in Group XL (a)] A supply system for X-ray apparatus comprises a core-less transformer 127 designed to work on a frequency between 500 and 1000 cycles per second. The transformer may be tuned by the variable capacity between the plates 135, 137. The whole may be mounted in an earthed metal container 123 filled with insulating oil. The end 17 of the X-ray tube occupies about half the space inside the transformer; the other half contains a casing 129 within which is located apparatus for regulating the filament current.
Patent GB-1037905-A (GB)
Title: Honing device
IPC: B24B33/08
Filed: 1965-05-31
Abstract: 1,037,905. Honing. J. SUNNEN. May 31, 1965, No. 23190/65. Heading B3D. A honing device comprises a rotatable body, means for rotating the body about its axis, three circumferentially spaced work-engaging assemblies mounted on the body, means supporting said three assemblies in preselected radial positions on the body relative to the body axis, whereby said three assemblies establish the honing diameter of the device, means for changing the radial position of at least one of said three assemblies to change the honing diameter, a fourth work-engaging assembly mounted on said body and resilient means biasing said fourth assembly radially outward on the body into engagement with a surface engaged by the said three assemblies. A rotatable generally cylindrical body 12 carries stone assemblies 20, 22 and guide assemblies 24, 26. The stone assembly 20 includes a stone 28 mounted on a backing member 30 mounted on a support plate 32 having mounting pins 34, 36, Fig. 8 (not shown). The pins extend into tubular members 38, 40 connected by a member 44; the members 38, 40 are located in bores in the body 12 and have gear teeth 38a, 46a meshing with an elongated gear 16 located in an axial bore in the body 12. The gear 16 can be driven by planetary gearing to move the stone outwardly of the body 12. The stone assembly 22 is similarly constructed, but the spacing of the mounting pins is different from that of the pins 34, 36. The stone assemblies 20, 22 are adjustable by shims. The guide assembly 24 includes a shoe 50, preferably of a relatively soft metal such as bronze, attached to a mounting member 52 having a pair of spaced mounting pins received in bores in the body 12. Shims 58 are interposed between the member 52 and the head 64 of a rod 62 located in a bore 66. The rod is urged outwardly of the body 12 by a spring 70 maintained under compression by a screw 74 threaded into the end of the rod and passing through a washer 76 engaging a shoulder 78. The guide assembly 26 is similarly constructed but is not resiliently urged. Its position on the body 12 is adjusted by shims 58 interposed below the mounting member 61 and the body 12.
Patent GB-846629-A (GB)
Title: Improvements in or relating to expansive wood-drilling bits
Inventor: JEWITT JOHN JAMES
IPC: B27G15/00
Filed: 1958-07-21
Abstract: 846,629. Augers. ELLIN, T. R. (FOOTPRINT WORKS) Ltd. May 14, 1959 [July 21, 1958], No. 23273/58. Class 83 (3). An auger comprises a shank 1 having a head 4 on which is formed a tapered screw 5, and a blade 6 having a helical chip-clearing slot 7. A dovetail slot 9, inclined from the normal to the shank 1, carries an adjustable blade 10 having a peripheral cutter 11, the blade being adjusted in the slot 9 by a screw 14 which co-operates with a screwed slot 16 in the blade, and is held against longitudinal movement by an abutment 19 in a slot 18 in the head. After the required adjustment according to the scale 26 on the blade 10, the blade is clamped by a plate 20, having inclined smooth edges 12, 21 and secured to the head 4 by a screw 23. In a modification, the screw 14 is held in a slot 18 in the head and between an abutment 19 at each end of the slot. In a further modification, the plate 20 is replaced by a spring torque with a bevelled edge, formed from the body of the head 4 (Fig. 7, not shown). The blade 10 may be replaced by a smaller blade for cutting a smaller diameter.
Patent GB-772979-A (GB)
Title: Preparation of pure adiponitrile
Filed: 1955-08-12
Abstract: Adiponitrile contaminated with by-products is purified by heating it with a hydroxylamine salt of hydrochloric, nitric, sulphuric or phosphoric acid, or a hydroxylamine acid salt of sulphuric or phosphoric acid, and thereafter separating the adiponitrile from the reaction mixture.  The impure adiponitrile may be subjected to an initial hydrolysis to convert imino groups in impurities to keto groups and the resulting aqueous solution may be used directly for the hydroxylamine treatment.  The treatment temperature is preferably between 100 DEG  and 250 DEG  C. and the purified adiponitrile may be isolated from the treatment mixture by distillation or selective solvation.  The examples describe the preparation of pure adiponitrile from the crude mixture obtained by catalytic hydrogenation of dicyanobutene. Specification 667,207 is referred to.
Patent GB-542723-A (GB)
Title: Improvements in multiple divergence reflex reflecting devices
IPC: G02B5/126
Filed: 1939-08-12
Abstract: 542,723. Reflectors. GARBARINI, A. Aug. 12, 1939, Nos. 23304 and 23305. Convention dates, Aug. 12, 1938 and April 7, 1939. [Class 97 (i)] [Also in Group XL] A reflex reflector, of the kind comprising two part-spherical elements with their bases connected, the rear element reflecting an incident beam from a distant source back through the front element towards the source as a beam of small divergence, is caused to reflect a beam the divergence of which increases with the angle between the incident beam and the axis of the device, by forming one of the elements with two or more spherical, ellipsoidal or helical stepped surfaces of different curvature. As the reflector is approached by a vehicle on one side of its axis the incident rays from the vehicle lights become more oblique to the axis and are reflected back as a beam diverging sufficiently to reach an observer's eye at a distance from the light source which is not negligible, as it is when at a considerable distance from the reflector. Fig. 3 shows one form of reflector, comprising a front lens having a spherical surface of radius r, and a rear element having stepped reflecting surfaces C<SP>1</SP>-C<SP>4</SP> of decreasing radii R<SP>1</SP>-R<SP>4</SP>, all being concentric with the front element. The reflector may be formed as a surface of revolution through 180 degrees of the contour shown about the axis XX or the axis YY. Fig. 5 showing a front view of such a device formed in the first way. Incident rays of increasing obliquity to the axis YY are reflected successively from the surfaces C<SP>1</SP>-C<SP>4</SP> with increasing divergence. In a modification, the front element is stepped and the reflecting element has a single spherical surface. Fig. 13 shows a form to be placed substantially at ground level, a beam incident on the surfaces O, P, Q being reflected back at increasing divergencies as it passes from one to the next. In all cases axial beams, which are to be reflected as beams of small divergence, are brought to a focus at the reflecting surface, and beams oblique to the axis, which are to be reflected as divergent beams, are brought to a focus in front of or behind the reflecting surface. The device may be made of material transparent to fluoro-activating rays, and a fluorescent coating be applied in front of the reflecting layer which is otherwise directly applied to the reflecting surfaces.
Patent GB-728370-A (GB)
Title: Improvements in or relating to stud welding apparatus
Inventor: RINGER DENIS JOHN
IPC: B23K9/20
Filed: 1952-09-17
Abstract: 728,370. Automatic arc control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 16, 1953 [Sept. 17, 1952], No. 23307/52. Class 38 (4). [Also in Group XXII] In a stud welding apparatus a solenoid is connected in series with the arc and when energized from a constant voltage source moves the stud from the work against a counter force to strike an arc, the length of which is self-adjusting until the counter force and the solenoid force are in equilibrium. A stud chuck 1 is mounted on an armature 2 slidable against a spring 7 into the core of a solenoid 6 in the gun body. An insulating shield 8 is fitted to protect the solenoid from welding heat. A tripod 15 is adjustably mounted on the body to allow correct positioning of the stud. The welding current supply lead is connected to the metal bobbin of the solenoid which in turn is connected by a flexible connector 19 to the armature 2. One lead of a three-core control cable is connected to one end of the solenoid coil, the other end of which is connected to the bobbin. The two other leads are connected to a press switch 18. In the control circuit, Fig. 6, with all relays de-energized, the timing condenser C1 is charged from the D.C. constant supply source. On pressing bush-button PB, one coil of relay A is energized from the D.C. source through contacts B1 to close its contacts A1, A2. Closing of contacts A2 energizes relays B, D, relay B changing its contacts to B2 and B4 and relay D closing contacts D1 to energize coil S which closes the welding current supply circuit switch S 1 and the switch K to allow energization of solenoid T. The stud is thus lifted from the work and an arc is drawn. Meanwhile, closing of contacts B2, B4 disconnects relay A from one side of the D.C. source, but condenser C1 then discharges through the coils of relay A for a time dependent on the setting of resistor R1 through which the condenser also discharges. When C1 is discharged, relay A de-energizes, contacts Al, A2 open, thus releasing relay D which de-energizes coil S to break the welding current and de-energizes coil T to allow the spring to pash the stud towards the work. Upon release of button PB relay B de-energizes and the apparatus returns to the original position.
Patent GB-1106130-A (GB)
Title: Bore size gauging apparatus
Inventor: CAVE BRIAN JOHN
IPC: G01B13/10
Filed: 1964-06-05
Abstract: 1,106,130. Gauging bores. JOSEPH LUCAS (INDUSTRIES) Ltd. May 27, 1965 [June 5, 1964], No.23364/64. Heading G1M. Apparatus for gauging the sizes of bores comprizing a mandrel 10 having opposed openings 12, means for passing compressed air through the openings and means for measuring the pressure drop is characterized in that the elongated mandrel has opposed faces which are equi-angularly inclined to the axis of the mandrel, at least a pair of parts 22 having radially outwardly presented portion in which the openings 23 are formed and having inclined faces co-operable with the faces of the mandrel screw means 16, 17 on the body and acting against the parts whereby the relative axial positions of said parts with respect to the body can be simultaneously adjusted to vary the distance between the openings in the parts and locking means 25 for preventing relative axial and radial movements of the parts and the body when in adjusted positions. Each part 22 engages in a slot in a sleeve 20, the position of the sleeve and hence the distance between the openings 23 being adjusted by a thimble 17 having a scale thereon. The knife edge ends of the parts 22 are engaged by inclined surfaces on the screw 25 and sleeve 20. A nominal bore size is set on the mandrel by testing against a ring of known standard size, the pressure readings obtained with this adjustment being converted accordingly into terms of decimeter of the bore to be measured.
Patent GB-1069152-A (GB)
Title: Method and device for the supervision of a winding machine
IPC: B65H63/06
Filed: 1964-06-05
Abstract: The invention relates to winding machines having automatic knotting means and is characterized in that a yarn clearer is added that operates if a knot thickness exceeds a predetermined value or if the knot mass is greater or smaller than a predetermined value.  To clear knots exceeding a certain size the yarn is passed through a slot or a light barrier, the latter operating severing means. To clear knots differing from a predetermined mass the yarn is passed between condensor plates in a circuit that operates a cutting knife when the mass of a knot is not within predetermined limits.
Patent GB-1394324-A (GB)
Title: Furnaces
IPC: F27B9/30
Filed: 1973-05-17
Abstract: 1394324 Furnaces STEIN SURFACE 17 May 1973 [17 May 1972] 23485/73 Heading F4B In a a furnace comprising a preheating zone 1, a rapid heating zone 2 and feeding members 6 and 10 for feeding articles through the furnace, an intermediate zone 3 is provided into which smoke may when necessary be introduced from auxiliary burners 16. The preheating zone 1 has burners 5, the waste gases passing out through outlet 7 and being taken by duct 17 to a chamber 15 into which the burners 16 discharge. The resulting smoke is brought by duct 14 to zone 3. If the mill, to which the articles are being fed breaks down, those in zone 2 can be rapidly removed, but those in zone 1 remain and may be damaged by overheating due to radiation from the hotter zone 2. The articles may also become decarburized. The smoke fills the preheating zone 1 and forms a screen protecting the articles. The smoke is introduced as soon as the mill stops.
Patent GB-532058-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C3/38
Filed: 1939-08-15
Abstract: 532,058. Controlling aircraft fitted with guns. DORNIER-WERKE GES., and DORNIER, C. Aug. 15, 1939, No. 23535. Convention date, Sept. 9, 1938. Drawing to Specification. [Class 4] An aircraft with rigidly built in fore and aft guns has its main wings tiltable about a transverse axis by the rearwardly facing gunner independently of the usual pilot's controls to enable the rear gunner to keep a pursuing enemy in sight.
Patent GB-1396383-A (GB)
Title: Oxidation catalyst and the use thereof in the oxidation and ammoxidation of olefins
IPC: C07C45/34
Filed: 1972-05-19
Abstract: 1396383 Butadiene ROHM & HAAS CO 19 May 1972 [2 June 1971 7 Sept 1971] 23565/72 Heading C5E [Also in Divisions B1 and C2] Butadiene-1,3 is prepared from n-butene-1 in the presence of catalyst which comprises (a) a composition having the empirical formula wherein A is Bi and/or Cd, X is Fe and/or Co, Y is Mo and/or W and x is a number sufficient to satisfy the valence requirements of the elements other than oxygen present in the composition and (b) support material, for example expanded crushed perlite as disclosed in Specification No. 1,385,104, silica, (for example silica gel), diatomaceous earth, kieselguhr, alumina, bauxite, magnesia, titania, zirconia, silicon carbide, carbon, activated carbon, coke, glass, fused quartz, pumice, crushed brick, porcelain, clay, bentonite, montmorillonite, zeolites, dawsonite, green sand, vermiculite, pozzalana, asbestos, mineral wool, copper, aluminium, chromium, iron, cobalt or nickel. The n-butene may be present in a C 4  fraction which additionally contains isobutylene, nbutane and isobutane and which has been obtained from a hydrocarbon cracking operation, for example naphtha reforming, thermal gas cracking or catalytic gas oil cracking.
Patent GB-911199-A (GB)
Title: Improvements in or relating to translatory movement control devices
Inventor: DUPUY GERARD
IPC: G21C7/12
Filed: 1961-06-29
Abstract: 911,199. Controlling nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 29, 1961 [July 18, 1960], No. 23593/61. Class 39 (4). [Also in Group XXX] A drive mechanism for the control rod of a nuclear reactor comprises a carriage 1 with a shank 2 for supporting the control rod housed in a deformable guide tube 4 projecting beneath the concrete shield 3 of the reactor, local deformation of the guide tube 4 being caused by rollers 11, 12 carried by arms 13, 14 pivoted to a plate 6 and held against the guide tube 4 by electromagnets 17, 18 so as to move the carriage 1 when the plate 6 is caused to move by means of a screw 7 engaging a threaded nut 8 carried by the plate 6. Should a rapid increase in the reactivity of the reactor occur, the current supply to the electromagnets 17, 18 is interrupted with the result that the arms 13, 14 and their rollers 11, 12 are released and the carriage 1 together with the control rod falls under its own weight, the absorbent part of the control rod entering the reactor core to stop the fission reaction. The invention is described with particular reference to reactors of the swimming pool type, the control rods of which include both an absorbent part and an active part.
Patent GB-918866-A (GB)
Title: Improvements in or relating to switched waveguide arrangements
Inventor: SCANLAN MICHAEL JAMES BARTHOLO
IPC: H01P1/12
Filed: 1960-07-06
Abstract: 918,866. Radio receiving systems; amplitude modulating systems; R.F. couplings. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. April 25, 1961 [July 6, 1960], No. 23621/60. Classes 40 (5) and 40 (7). [Also in Groups XXXVI and XL (b)] A microwave radiometer comprises two waveguide sections side-by-side connected by two 3 db. coupling slots 7, 8, one waveguide end A being connected to an aerial " pointed " as a star, and its other end connected to a passive load L2 producing the same noise level as the aerial in the absence of a signal, the other waveguide having its ends respectively coupled to a radio receiver R and to an open or short-circuit or absorbing load L1 or another receiver. Further, two coaxial rectangular vanes 11, 12 are rotated mid-way between the guide sections by a motor 10 so that alternately the receiver R receives energy from the aerial A, when the vanes are open, and only from the equivalent noise source L2, when the vanes are closed. The receiver inputs are detected as a low-frequency modulation of the microwave energy (of frequency twice the rotation frequency of the vanes) and after amplifying passed to a phasesensitive rectifier with other input (of equal frequency) derived from a photo-cell 14 whose incident light from a lamp 13 is interrupted at twice the speed of the vane shaft by vanes 15 on the shaft. The load L1 may alternatively be a second receiver whose detected output is subtracted from that of receiver R (the two modulations being inverse), or the two receivers may be slightly off-tuned and swept through a frequency band (keeping the frequency difference constant) which includes, e.g., the frequency of the hydrogen spectral line.
Patent GB-674090-A (GB)
Title: Improvements in or relating to the preparation of an unsaturated ketone
Inventor: EVANS RONALD MAJOR
IPC: C07C403/00
Filed: 1949-09-13
Abstract: 3 - Methyl - 1 - (21 : 61 : 61 - trimethylcyclohex - 11 - en - 11 - yl) - octa - 3 : 5 - dien - 1 - yn - 7-one is manufactured by treating (if necessary heating) 3-methyl-1-(11-hydroxy-21 : 61 : 61-trimethylcyclohexyl) - octa - 3 : 5 - dien - 1 - 7 - one with a dehydrating agent selected from: (a) acetic anhydride containing concentrated sulphuric acid (preferably p  about 1 per cent); (b) formic acid, which may contain water (preferably not more than 20 per cent); (c) iodine or an aromatic sulphonic acid (e.g. p-toluene-sulphonic acid) in the presence of an inert organic solvent (preferably one boiling in the range 80-140 DEG  C., e.g. benzene, toluene or petroleum ether).  The reaction conditions depend on the dehydrating agent used, (a) being preferably added at 0 DEG  C. and the mixture then being allowed to warm to room temperature, whilst (b) and (c) are best employed at refluxing temperatures.  In all cases, an inert atmosphere (e.g. nitrogen) and the presence of an anti-oxidant (e.g. hydroquinone) are desirable.  Examples illustrate the use of the various dehydrating agents.  Specifications 627,453, 633,892, 633,893 and 674,089 are referred to.
Patent GB-1156802-A (GB)
Title: Porous Polytetrafluoroethylene Sheets and their use in Electrodes for Free Electrolyte Fuel Cells
IPC: H01M4/88
Filed: 1966-05-26
Abstract: 1,156,802. Porous fibrillated P.T.F.E. sheets. AMERICAN CYANAMID CO. 26 May, 1966 [9 June, 1965], No. 23711/68. Headings C3C and C3P. [Also in Divisions D1 and H1] The invention comprises a wettable porous unsintered substantially completely fibrillated P.T.F.E. sheet liquid impermeable under conditions normally present in free electrolyte fuel cells. The sheet may be prepared by mixing an aqueous dispersion of P.T.F.E. particles 0À05-1 microns in diameter with 60-99% polymethylmethacrylate; milling the mixture at 170-200 C., to form the fibrils; extruding it as a sheet; compressing it within the same temperature range at about 300 p.s.i.g; cooling; extracting the polymethylmethacrylate with acetone; washing with alcohol and deionized water and drying.
Patent GB-376532-A (GB)
Title: Improvements in valves or electric switches operated automatically after a predetermined interval
IPC: H01H43/28
Filed: 1931-08-24
Abstract: 376,532. Actuating valves or electric switches. RINGLE, R. F., Beaver Road, Zelienople, Pennsylvania, U.S.A. Aug. 24, 1931, No. 23723. [Class 135.] A valve or electric switch adapted to be set 'by hand and closed or opened automatically after a predetermined time particularly adapted for the control of compressed air to a bumping table for moulding has the means for releasing the valve or switch actuated by a viscous liquid such as oil subject to the pressure of the controlled fluid or of a fluid supplied for the purpose of actuating the device. The valve 11 controlling the supply of compressed air from the conduit 8 to the pipe 7 leading to the automatic valve controlling the bumping table is adapted to be moved to its open position by a hand-lever 24 mounted on a shaft 23 and provided with a lug 28 adapted to engage a lug 30 on a member 29 freely pivoted on shaft 23 and co-operating with the valve spindle 16. The valve is held in the open position by a pivoted catch 31 acted on by a spring 34 engaging the member 29. The outlet from the discharge chamber is throttled by a disc 51 and a port 37 connects the discharge chamber to a chamber 38 containing oil so that oil is forced through an orifice 39 controlled by a needle valve 50 to act on a spring-loaded piston 42. The piston has a rod 44 adapted to engage after a predetermined interval with the catch and release the valve. When the valve has closed the pressure in the chamber 38 is vented through the pipe 7 and a bleed port 45 in the valve spindle, this permits the spring 43 to return the oil from the cylinder 40 to the chamber 38 through a spring-loaded non-return valve 46. The catch may be released in advance of the automatic action by an arm 27 on the hand lever engaging a lug 54 on the catch. When applied to an electric switch a contact on the catch is arranged to co-operate with a fixed contact 53.