baber/WOPTO huggingface dataset:
Patent GB-1075923-A (GB)
Title: Precision stamping press
IPC: B21D28/16
Filed: 1965-04-09
Abstract: 1,075,923. Punching. HYDREL A.G. April 9, 1965 [April 10, 1964], No. 15231/65. Heading B3W. In a punch press the tool is mounted in a piston 7 which slides inside a second piston 8 in an hydraulic cylinder 9. The relative movement between the pistons is limited by shoulders thereon and springs 25 bias the piston 7 towards the top of the piston 8. An extension 7a of the piston extends through a top plate 10 of the press frame and carries a yoke 15. Between the plate 10 and the yoke 15 are two pneumatic piston and cylinder units 11, 12 and two compression springs 13, 14. An hydraulically operated piston 5 ejects the punched-out part. The highest position of the yoke 15 is limited by a stop 18 manually adjusted by a screw 17. The lowest position of the yoke is limited by a stop 19 threaded into a cylinder 20 which can be rotated for coarse adjustment by a motor 23 and for fine adjustment by a hand wheel 21. The working stroke is effected by admitting hydraulic fluid to the cylinder space 9a. When the pressure is relieved the piston 7 is raised by the pneumatic cylinders 11 and 12 assisted by the springs 13 and 14. The piston 8 acts as a hold-down on the working stroke and as a stripper on the return stroke. For precision stamping it is necessary to reverse the movement of the cutter accurately at a chosen point and the Specification states that this can also be achieved by micro-switches (30), Fig. 3 (not shown), actuated by tripping pins mounted on the piston units 5, 7, 8 and controlling hydraulic valves in the circuit. An electronic delay timer prevents the piston 5 ejecting the punched-out part until the piston 7 has risen. The work material is also lifted from the die by a projection on the bottom of the piston 7 so that when the punched-out part is pushed out of the die it can be removed mechanically or by an air blast.
Patent GB-612232-A (GB)
Title: Improvements in or relating to electric relays
IPC: H01H50/62
Filed: 1946-05-20
Abstract: 612,232. Switches held set and freed mechanically; switches partly electromagnetic. HOFGAARD, R. May 20, 1946, No. 15239. [Class 38 (v)] A multi-contact-spring switch suitable for calculating machines, comprises a block 4 carrying a pivoted arm 7 which is lifted into the path of a reciprocating member 13 by the pivoted armature 10 of an electromagnet 9, whereby the block 4 is moved and carries bladespring contacts 1, 2, respectively, into and out of engagement with blades 5. The contacts are retained in this position by a detent 8 engaging the tail 12 of the armature 10 as the actuating member retracts, and held there when the magnet is subsequently de-energized, until the next stroke of the actuating member moves the arm 7 slightly and allows the armature to drop, thus releasing the arm 7. The armature carries an arm 14 co-operating with a combined return and contact spring 15 engaging a further contact 16 controlling the electromagnetic circuit. A reciprocating rod may carry a number of projections 13, each operating a switch like that shown, and the magnet of each switch being controlled by that preceding.
Patent GB-474585-A (GB)
Title: Process for deoxidation of copper
IPC: C22B15/14
Filed: 1937-06-01
Abstract: Molten copper is deoxidized by the action of solid or molten metaphosphoric acid which may be caused to act on the copper by violent intermixing.
Patent GB-445656-A (GB)
Title: Sharp pointed penetrative implements
IPC: A61B17/06
Filed: 1935-05-25
Abstract: 445,656. Sewing - needles. OVING- TON, E. J., 62, Harvard Street, Newtonville, Massachusetts, U.S.A. May 25, 1935, No. 15313. Convention date, May 29, 1934. [Class 112] A needle, particularly a surgical needle, has a point with a curved channel leading thereto so that the needle, as it penetrates cuts and displaces a tongue of tissue which can afterwards return to the hole made. The needle 14 may have the cross-sectional shapes shown in Figs. 12, 13 and 14, a and b being the cutting edges. As the needle enters the tissue 20, a tongue 24 is displaced, Fig. 7, and this tongue helps, on returning, to bind the stitches firmly, Fig. 10.
Patent GB-544677-A (GB)
Title: Improvements in or relating to photographic sensitising dyestuffs
IPC: C09B23/12
Filed: 1940-10-16
Abstract: 544,677. Cyanine dyes ; photographic sensitisers. KENDALL, J. D., and FRY, D. J. Oct. 16, 1940, No. 15359. [Class 2 (iii)] [Also in Group XX] Dyestuffs comprising two heterocyclic nuclei N = (CH-CH) n =C linked by a chain N = C(CH  2  : .........D......... : R 2 )-CR 3 , wherein D is the residue of the heterocyclic nucleus, n is 0 or 1, R 2  and R 3  are hydrogen or alkyl (c.f. Specification 544,646) are condensed with quaternary ammonium salts of heterocyclic nitrogen compounds containing a thioether, selenoether or a group -CH =CHNHA, wherein A is acyl, aryl or hydrogen, in the α or y portion to the nitrogen atom. Instead of the latter quaternary salt, the corresponding base may be used together with an alkyl or aralkyl ester. In examples : (1) 2 2<SP>1</SP>-diethyl-8-methyl-7 -az-trimethinethiacyanineiodide is condensed with ethyl-p-toluene sulphonate and methylthiolquinoline or methylthiolbenzthiazol and the products precipitated by pouring into potassium iodide solution : (2) 2 : 2<SP>1</SP>-dimethyl-8-methyl-7-az-trimethinethiacyanineiodide is condensed with 1:3:3:-trimethyl 2 # acetanilidorinylindoleniumiodide, 1 wacetanilidovinylbenzthiazolethiodide and with methyl thiolbenzoxazol, methylthiol-3:4-naphthathiazol and 2-methylthiolthiazoline together with methyl-p-toluenesulphonate : (3) 2:2<SP>1</SP>- dimethyl-8-methyl-7-az-trimethineoxathiacyanineiodide is condensed with 1-methylthiolbenzthiazol. and methyl-p-toluenesulphonate : (4) 2:2<SP>1</SP>-dimethyl-8-ethyl-7-az-trimethinethiacyanineiodide.is condensed with 1-methylthiolbenzthiazol and methyl-p-toluenesulphonate. The dyestuffs are sensitizers for photographic gelatino silver halide emulsions. For the condensation, the following heterocyclic nitrogen compounds may also be used : oxazolines, selenazoles, selenazolines, pyridine, diazines (e.g. pyrimidine), thiodiazoles, quinazolines, their analogues containing fused on benzene, naphthalene and anthracene nuclei and the diazines described in Specification 425,609. According to the Provisional Specification, the heterocyclic nuclei in the starting material may be linked by an N =C(C H  2  R  2  N group and for the condensation, quaternary salts of heterocyclic nitrogen compounds containing a (CH = CH) n , NH  2  group, where n 1  is 1, 2 or 3, in the α or y position may be used. The hydrogens of the azamethine chain of the starting materials may also be replaced by aryl and aralkyl groups.
Patent GB-936271-A (GB)
Title: Particle size analyzer
IPC: G01N15/02
Filed: 1962-04-24
Abstract: 936,271. Testing particles. B. N. HOFFSTROM. April 24, 1962 [May 3, 1961], No. 15493/62. Class 106 (2). Apparatus for analyzing the size of particles in a given sample comprises a channel 64, 74 through which air flows. The particles are injected transversely into the channel through a channel 88 and depending on their size are moved a greater or lesser axial distance before they are deposited on the wall 72 of channel 74. The wall may be covered with a particle retaining substance or may be transparent so that the deposited particles can be viewed. The air flow is produced by rotating the housing 58, 68 on a spindle 20, the housing having blades 66, 78. The blades 78 are longer than blades 66 and act as a pump. This air flow helps the passage of the particles which are injected into channel 74, by means of vanes 90 in channel 88. Accessories can be provided on the blades 78 to increase or decrease the air flow according to the size of particles to be measured.
Patent GB-1453663-A (GB)
Title: Watercraft having hydrofoils
IPC: B63B1/26
Filed: 1974-04-08
Abstract: 1453663 Hydrofoil craft; air cushion vehicles R R GREER 8 April 1974 15495/74 Headings B7A B7K and B7S A hydrofoil craft is supported by lift forces from hydrofoil and aerofoil sections when moving at full speed and also by an air cushion when moving at lower speeds and comprises two side hulls 3, 4 carrying a plurality of outwardly extending adjustable hydrofoils adjacent their keels, which in one embodiment decrease in size from fore to aft of the craft, a deck 2 whose underside is inclined to the topside to produce lift, outwardly extending aerofoils at the bow and stern, vertical direction stabilizing fins 9, 10 at the stern and an aerofoil extending between the fins 9, 10. The amount by which the hydrofoils project from the hulls' sides may be varied by retracting a part of each foil into the respective side. To increase the lift forces created by the underside of the deck, a mist of water vapour may be injected into the airstream from nozzles on the inboard sides of the hulls 3, 4 to increase the air's density. The air cushion is formed in a space between the two side hulls 3, 4, the rear edge of the deck's underside and a retractable flap which stows in a recess in the underside of the deck adjacent its forward end. The craft may be propelled by propellers 24 or by air or water jets, and the exhaust from the air jet engines, when these are used, may be deflected by means of retractable scoops to form the air cushion. The air jet engines, which are disposed along the outboard sides of the side hulls 3, 4, may also be rotatable about transverse axes to provide additional upthrust. Docking.-The outwardly extending aerofoils at the bow and stern carry sets of vertical and horizontal wheels which engage in horizontal rails spaced to permit the craft to pass between when docking (Fig. 6, not shown).
Patent GB-1359615-A (GB)
Title: Pattern recording apparatus
IPC: G06K15/12
Filed: 1972-04-05
Abstract: 1359615 Printing INTERNATIONAL BUSINESS MACHINES CORP 5 April 1972 [8 April 1971] 15559/72 Heading G4H  Pattern recording apparatus comprises means for generating a set of electrical signals, each of which represents a pattern to be recorded, one or more arrays of elements 5 for converting each signal into a corresponding light signal, and means for conducting each light signal to an appropriate position on a light-sensitive recording medium 7. The set of signals may be applied by a decoder in series to one array 1, Fig. 1, or in parallel to a plurality of arrays 26, Fig. 2. Each element 5 may be a high-frequency light source (Xenon lamp or semi-conductor), or a combination of a continuously-on source and a light shutter (as here); to each shutter is connected an electrical lead 4 and an optical fibre 9: signals on 4 open or close the shutters to illuminate selected fibres 9; each shutter may be a Kerr cell plus a polarizer or a bismuth titanate crystal 28, Fig. 3 (not shown), between orthogonal polarizers (the signal rotating the polarization direction of the cell or crystal], or it may comprise a light-reflecting ferromagnetic material 37, Fig. 4 (not shown) displaced by an electromagnet in response to a signal.  In Fig. 1 the sequential output along fibres 9 is applied to a distributer comprising stationary rings 13, 20 having apertures 14, 21 and a rotating apertured ring 16 attached to a rotating array of fibres 11, consecutive patterns being transmitted through adjacent apertures 21, along adjacent fibre arrays 12, and finally being recorded at adjacent circumferentially displaced locations 22 on the medium 7 deposited on a rotating drum 6. Rings 13, 16 may be replaced by (e.g.) rotating concentric cylinders. In Fig. 2, seven pattern signals are applied to arrays 26 whence they are transmitted by arrays 12 of fibres to be recorded in an axial line on medium 7. The patterns may be recorded on photosensitive paper, or an electrostatic printing process may be used.
Patent GB-913849-A (GB)
Title: Improvements in conveyor belting
Inventor: HALLAM WILLIAM GORDON
IPC: B65G15/34
Filed: 1959-05-07
Abstract: 913,849. Laminates. GREENGATE & IRWELL RUBBER CO. Ltd. May 9, 1960 [May 7, 1959], No. 15630/59. Drawings to Specification. Class 140. A conveyer belting comprises a carcase composed of plies of impregnated fabric, an abrasionresisting cover, and a layer or layers, beneath the cover, to form a shock-absorbing layer or layers of a resilient compound containing a vinyl chloride polymer and a butadiene-acrylonitrile copolymer rubber, the former comprising not more than 50% of the total. The proportions of the two may be substantially equal. A gasforming agent or agents may be included in the compound to produce a sponge-like product. The resilient layer may be immediately beneath the abrasion-resisting cover, or may be beneath an outer woven ply. The fabric may be of cotton, rayon, nylon or " Terylene " (Registered Trade Mark) or mixtures of these. The abrasion-resisting cover may be of a vinyl chloride polymer.
Patent GB-1186161-A (GB)
Title: Improvements in or relating to the Heat Treatment of Aluminium Alloys
Inventor: DOYLE WILLIAM MICHEAL
IPC: C22F1/053
Filed: 1966-04-07
Abstract: 1,186,161. Heat-treating aluminium alloys. HIGH DUTY ALLOYS Ltd. April 4, 1967 [April 7, 1966], No.15757/66. HeadingC7A. Forged or extruded aluminium-base alloys containing in percentage by weight: - Zn 4 - 8 Mg 1À5 - 3À5 Cu 0À05 - 0À7  Mn 0À05 - 1 Ag - 0À7 Fe - 0À5 Si - 0À5  Ti - 0À25  Zr - 0À25 B - 0À01 Cr - 0À05 is solution treated e.g. at 420‹ to 500‹C. for “ to 6 hours, in molten salt or in a forced air circulation furnace, quenched, preferably into water at a temperature exceeding 85‹ C., and then subjected to a two-stage ageing treatment, the first stage of which is effected at a temperature below 145‹ C. while the second, which may follow directly or with intermediate cooling is carried out within the range 145‹ to 175‹ C. for up to 30 hours.
Patent GB-870772-A (GB)
Title: Improvements in or relating to alkylation processes
Inventor: JENNY ROBERT
IPC: C07C2/70
Filed: 1959-05-07
Abstract: The alkylation of aliphatic compounds containing a tertiary carbon atom and aromatic compounds containing a replaceable nuclear-bound hydrogen atom is effected with an olefine, alkyl halide, alcohol or ester as alkylating agent in the presence as catalyst of an aqueous solution of a metal halide acid.  The product is recovered from the organic phase by fractionation.  The process can be used to introduce ethyl, propyl, isopropyl, butyl, amyl, benzyl or cyclohexyl groups into aliphatic tertiary hydrocarbons, aromatic hydrocarbons and their halogen compounds, phenols and phenolic ethers.  Suitable catalysts are solutions of the acids HFeCl4,2H2O; HFeCl4.4H2O; HFeCl4,6H2O; HZnCl3,2H2O; HZnCl5,2H2O; HSnCl3,3H2O; H2SnCl6,6H2O; HSbCl6,2H2O; HSb2Cl7,2H2O and HBi2Cl7,3H2O and they may be prepared by dissolving the metal halide and hydrogen halide in water, not necessarily in stoichiometric quantities.  The bromine acids can also be used.
Patent GB-1461577-A (GB)
Title: Particles for and method of reducing oil pollution on water
IPC: C12R1/645
Filed: 1974-04-09
Abstract: 1461577 Floating particles used to treat oil-onwater pollution SNAMPROGETTI SpA 9 April 1974 [13 April 1973] 15778/74 Heading C1C Particles capable of floating on fresh water and comprising a body consisting of or containing one or more water-soluble compounds containing N and P in a form assimilable by aqueous microbes and, on the surface of the body a film of paraffin which is solid at room temperature are used in the treatment of oilpollution. The particles are sprinkled on the oil which is floating on water and encourage the biological digestion of the oil. The particle may consist of one or more substances such as NH 4  salts, nitrates, urea, sodium and ammonium phosphates and in particular magnesium ammonium phosphate coated with a paraffin, the particles possibly being in the form of porous tablets, or may be porous substances such as pumice, vermiculite, alumina or foamed rhyolites, impregnated with the substances and coated with paraffin.
Patent GB-1419552-A (GB)
Title: Steels
IPC: C21D8/04
Filed: 1973-04-03
Abstract: 1419552 Steel compositions NIPPON STEEL CORP 3 April 1973 [3 April 1972 (2) 20 Sept 1972] 15779/73 Heading C7A An aluminium-killed steel which is particularly suited to the production of steel sheet by. hot and cold rolling and which is deep-drawable, consists, by weight of:- the balance being iron and impurities which may include a residual phosphorus content, and the ratio of boron to nitrogen being not greater than 0.74:1. The steel may be hot-rolled to a finishing temperature at or above the Ar 3  critical temperature, coiled at temperatures either above or below 680 C depending on required properties, recrystallisation annealed at e.g. above 650‹C and over-aged at e.g. 200 to 500‹C.
Patent GB-1146955-A (GB)
Title: Process for the production of magnesium phosphide and its use
IPC: C01B25/06
Filed: 1967-04-06
Abstract: 1,146,955. Magnesium phosphide. W. FREYBERG. 6 April, 1967 [7 April, 1966], No. 15818/67. Heading C1A. [Also in Division A5] Magnesium phosphide is produced by reacting magnesium and red phosphorus in the presence of at least one non-toxic de-sensitizing substance capable of taking up part of the heat of reaction by physical or chemical change, thus avoiding an explosive reaction. The substance is a solid material or a liquid hydrocarbon adsorbed on to a solid material. The solid material may be a very finely ground voluminous powder, having a bulk weight below 350, preferably 200, gms. per litre, of an alkaline earth metal oxide or carbonate, or metal soap; magnesium oxide, carbonate and stearate and calcium stearate are especially preferred powders. The solid material may also be a solid hydrocarbon, preferably saturated, e.g. paraffin wax. The liquid hydrocarbon adsorbed into solid may be paraffin oil mixed with an alkaline earth metal oxide or carbonate or a metal stearate powder having a bulk weight below 350 gms./litre. A non-toxic inorganic solid having a m.pt. below 1000‹ C., especially dried calcium chloride, magnesium chloride or aluminium chloride or sodium chloride and carbonate or potassium chloride or carbonate, may also be used in the process. 6-60% by weight based on the entire mixture is the most favourable amount of non- toxic additive. The product contains between 60-80% magnesium phosphide.
Patent GB-802159-A (GB)
Title: Improvements in or relating to temperature responsive electric circuit controlling devices
IPC: H05B1/02
Filed: 1955-06-02
Abstract: 802,159. Thermal switches. IGRANIC ELECTRIC CO., Ltd. June 2, 1955 [June 17, 1954], No. 15827/55. Class 38 (5). A thermal switch for a refrigerator having a snap-action mechanism similar to that of Specification 642,109, differs from the disclosure of that Specification in that a loading spring 22 on a pressure-sensitive device 12 is factory adjusted by a preset control to provide a constant cut-in (warm) temperature which preferably allows defrosting on each cycle, and the cut-out (cold) temperature (and therefore the temperature differential) is varied by means of a manually operable cam 29K which varies the position of a lever 26 which acts as a stop for the snap mechanism. As the temperature decreases a cup and saddle link 23 moves a lever 11a of the snap mechanism downwards about a pivot 21 causing springs 31 to move over dead-centre so'that a lever 11e engages a lever 17a to open contacts 16, 18. The contacts may be opened independently of the temperature by a lug 29h fixed to the cam engaging a projection 11d on the lever 11a.
Patent GB-165323-A (GB)
Title: Improvements in sheet separating machines
IPC: B65H3/50
Filed: 1920-06-11
Abstract: 165,323. Mills, C. K., (Dexter Folder Co.). June 11, 1920. Sheet-separators; pile supports for sheet feeds. -Sheets are separated from a pile. on a support by means of a sheet-engaging device arranged above and at a distance from the top of the pile, a portion of the pile of sheets being raised periodically into the sphere of action of the sheetengaging device which displaces the top sheet and brings it into a position to be engaged by movable sheet-gripping means, which, as described, takes the form of a reciprocating sucker. A movable holding-down device, and means for blowing air under the separated sheet are also described. As shown, the sheet-separating devices are mounted in a vertically adjustable manner in a frame carried by a bracket 3 which is adjustable longitudinally along a rack 2. The devices are mounted on or are operable by cams on a shaft 11 driven by bevel gearing from a shaft 15. The sheet-engaging device consists of a combing- sector 12 mounted on the shaft 11, and a portion of the sheets are raised into contact with this sector by an oscillating curved lever 18 which is oscillated by a. cam 32, roller 31, link 29, and is normally pressed towards the pile by a spring- pressed rod 22 controlled by an adjustable spring 26 acting on a guide 24 through which the rod 22 passes, this guide being provided with trunnions 23 journaled in arms 21 on the shaft 17 about which the lever 18 pivots. When the cam 32 permits, the spring 26 presses the lever 18 into the position shown in Fig. 4, and raises the corner of the pile. The combing-sector 12 then acts on the top sheet and straightens it out as shown, thereby separating it from the rest of the pile. An oscillating sucker 39, carried by a lever 35 oscillated by a cam 40 acting on a roller 41. then seizes and raises this sheet, until it is seized by sheet forwarding means. Other sheets are prevented from adhering to the top one by blasts of air directed by a tube 56, and by a curved holding-down device 45 which is given combined reciprocatory motions, in vertical and horizontal directions, by a cam 54 which oscillates a lever 49 in which the device 45 is pivoted, a fixed pin 44, engaging a slot 47 and a cam 46 in the device 45, assists to govern the movements of the holding- down device. A spring 52 serves to keep the roller 53 of lever 49 in contact with the cam 54, and to control the turning of the device 45 about its pivot 48 on the lever 49. The device .45 is moved forwards and downwards after the top sheet is separated, and is subsequently moved upwards and backwards.