baber/WOPTO huggingface dataset:
Patent GB-1380956-A (GB)
Title: Injection nozzle
IPC: B29C67/24
Filed: 1972-04-10
Abstract: 1380956 Injection moulding machines TEMPCRAFT TOOL & MOLD Inc 10 April 1972 [14 July 1971] 16491/72 Heading B5A An injection moulding nozzle assembly comprises a cylindrical housing 10 having a discharge nozzle 18 at one end, a control valve 21 in the housing opened and closed by axial movement away from and towards the nozzle outlet, means supporting the housing intermediate its ends for endwise movement relative to the supporting means, a portion of the housing 10 being reciprocatably slidable in the supporting means by power means 54, 55. The valve 21 is connected by a piston-rod 27 to a piston 29 slidable in a bore 30 in the housing portion 10b. To open the valve 21 fluid is admitted through a passageway 36 to the left hand side of the piston 29. Opening movement of the valve is limited by a threaded stop member 15 which is adjustable by a handle 16. As shown, the housing 10 is slidably supported in a reservoir 38 for hot wax. The wax is agitated by means of an agitator 40 and is forced through openings 26 in the housing 10 by means of a piston 41.
Patent GB-395501-A (GB)
Title: A new or improved carton or packet for cigarettes or other commodities
IPC: B65D85/10
Filed: 1932-06-10
Abstract: 395,501. Cartons. MOLINS, W. E., 2, Evelyn Street, Deptford, London. June 10, 1932, Nos. 16494 and 20187. [Class 18.] In a drawer-andshell carton wherein the shell has one end closed, the end of the drawer at the open end of the shell is formed with one or more short lateral projections which are substantially flush with the longitudinal panels of the shell and form a finger hold by which the drawer may be pulled out of the shell. As shown, the projections 7 are formed by slitting the drawer blank adjacent the score lines 6 defining the end 14 of the drawer, but the projections may be arranged at the narrow longitudinal panels of the shell ; additional projections, of approximately the same height as the projections 7, may also be formed at the corners of the end of the drawer to prevent it moving below the level of the shell. The edges of the projections 7 may be formed by a series of curved slits and the slide may be provided with side flaps.
Patent GB-641135-A (GB)
Title: Improvements in indexing mechanism for rotary electric switches
Inventor: WALTON GORDON HERBERT FRANCIS
IPC: H01H19/11
Filed: 1948-06-19
Abstract: 641,135. Snap-action switches. DIAMOND H. SWITCHES, Ltd. June 19, 1948, No. 16556. [Class 38(v)] Indexing mechanism for a rotary, manually - operated, switch, comprises a spring-loaded detent i engaging between the teeth of a star-wheel a mounted on the operating shaft b, one or more of the star-wheel teeth having means for forcing the detent i outwardly more than normal when moving from the corresponding switch position. As shown, a disc p having a longer tooth r masks a tooth of the star-wheel whereby the detent i must be further deflected against its spring f and the increased resistance to rotation causes a slight delay in the switch operation at that position. This is desirable when switching from one 50-cycle circuit to another of opposite polarity since, if the switching time is less than 1/100 sec., the presence of arcing would produce a short-circuit. The resistance may be further increased by a leafspring u which is compressed by the detent i when the latter is engaged by the tip of the tooth r. To ensure correct positioning of the shaft b, a spring-loaded arm j having a flat surface o engages the tips of two adjacent star-wheel teeth.
Patent GB-547151-A (GB)
Title: Improvements in friction rachet devices
IPC: F16D41/20
Filed: 1940-11-19
Abstract: 547,151. Ratchet gearing. GOODENOUGH, W. P., and JENSEN, H.E. Nov. 19, 1940, No. 16654. [Class 80 (in)] Consists in a'friction ratchet of the kind having friction shoes operated by a cam device. An annular driven element 1 has an upstanding flange 2 and a boss 3 having a bore 5 to receive a tool or other part to be rotated. The space 6 between flange and hub contains a pair of semicircular shoes 7, 8 with their ends 7a, 8a contacting at 9, their other ends 7b, 8b being spaced to fcrm a pocket 10. A disc 11 equal in diameter to the flange 2 has an operating handle 12 carrying a cam-shaped boss 13 diagonally opposite corners of which are adapted to engage the opposing ends 7b, 8b of the shoes. An oval opening in disc 11 has diametrically opposite slots 17, 18 formed in its wall and in these slots are slidable elements 19, 20 loaded by springs 19b, 20b and having in their upper faces recesses 19c, 20c, to form shoulders 19d, 20d Fig. 2. A recess 21 in the upper face of the disc 11 accommodates an adjusting lever 23 which is pivoted about a pin 22 in the recess, and has an opening 25 to permit free movement without touching the hub 3. Formed on lever 23 are depending lugs 26, 27 disposed to engage the shoulders 19d, 240d so that when the lever is swung in either direction about pin 22, one element 19 or 20 is withdrawn from engagement with hub 3 and the other resiliently urges the member 11 laterally with respect to the hub and this produces an angular movement of the member which causes diagonally opposite corners of the cam to bear against the shoes and spread them into contact with the inner surface of the flange 2. A screwed cap member retains the disc in position. A projection 23c on lever 23 is adapted to engage recesses 28, 28a, 29 in the arm 12. When the recess 28a is engaged, no driving action takes place. When recesses 28a, 29 are engaged, the cam 13 acts upon the shoes to give a driving effort in either forward or reverse direction. In a modification, no springs are used, but the form and size of the opening 25 in lever 23 are such that when the lever is swung in either direction, it will fulcrum on the hub 3 and so move the pin 22 laterally and cause angular movement of the disc 11.
Patent GB-600787-A (GB)
Title: Improvements in or relating to the preparation of catalysts
IPC: B01J27/043
Filed: 1945-07-03
Abstract: A nickel sulphide or cobalt sulphide catalyst is prepared by moulding a powdered compound of the metal at a pressure of above 500 atmospheres in a hydraulic press or mechanically-operated tablet machine to form granules, spheres, or tablets, which are then further treated if necessary to form the sulphides.  Oxides, hydroxides, or carbonates may be treated with hydrogen sulphide or an organic sulphur compound such as carbon disulphide; sulphates, sulphites, or other oxygenated sulphur compounds may be reduced with hydrogen or hydrogen sulphide.  The catalyst may be further reduced with hydrogen or hydrogen sulphide to form nickel or cobalt sub-sulphide.  Before pressing, the powdered material may be graded and the water content adjusted so that it is free running and has suitable moulding properties.  Compounds of copper, aluminium, cadmium, molybdenum, tungsten or iron may be included as promoters, and also from 10-20 per cent of inert-material.  The catalysts may be used for the oxidation of hydrogen sulphide in gaseous mixtures, for example as described in Specification 600,118, for the purification of gas from organic sulphur compounds, for catalysing the reaction of hydrogen with oxygen as described in Specification 530,983, or for the decomposition of nitric oxide as described in Specification 476,684, [Group XII].  Specifications 269,521, [Class 1 (i), 379,335, 434,141, 464,951, 489,398, 498,828 and 529,711 also are referred to.
Patent GB-273325-A (GB)
Title: Improvements in means for releasing and discharging loads from aircraft
IPC: B64D1/04
Filed: 1927-06-24
Abstract: 273,325. Rohrbach Metall-Flugzeugbau Ges. June 26, 1926, [Convention date]. Dropping bombs and other articles from a height.-An apparatus for dropping a number of loads from aircraft comprises electrical devices for selecting the particular loads to be dropped and mechanical devices for performing the release of the loads. As shown in Fig. 1, bombs or containers of food or mails A - - D are hung beneath a frame 1 from hooks 5 held against blocks 10 by spring-controlled triggers 7. A bar 13 is slidably mounted in the frame 1 on rollers 14 and is mechanically operated from a distance by cables 16 and a lever mechanism 18 under the control of an observer. Bell-crank levers 24 and a corresponding number of electromagnets 25, 26 are carried by the bar 13, and the electromagnets are controlled by switches in a distant switch box 12, Fig. 2. There is one switch 32 for each electromagnet 25, and when one of these switches is closed, as well as a main switch 34, the corresponding electromagnet 25 attracts one arm of its lever 24, causing the other arm to drop. If the bar 13 is then pulled to the right by means of the distant lever 18, the lowered arm of the lever 24 deflects the corresponding trigger 7, which releases the corresponding load. Any Lumber of loads can thus be selected and dropped simultaneously or in quick succession according to the switches 32 which are closed. The other electromagnets 26 are in the circuit of a switch 40, 'and when this switch is closed the levers 24 are swung back to the inoperative position. Springs 27 hold the levers 24 in either of their extreme positions. When the bar 13 occupies its extreme left position, a number of blocks 29 thereon bear on the triggers 7 and hold these in engagement with the hooks 5, thereby preventing any accidental release of the loads.
Patent GB-1144737-A (GB)
Title: Process of preparing precooked pasta products
Inventor: MANCUSO JOHN JOSEPH
IPC: A23L7/109
Filed: 1967-04-12
Abstract: 1,144,737. Conditioning pasta products. GENERAL FOODS CORP. 12 April, 1967, No. 16898/67. Heading A2E. A process of making precooked dehydrated pasta products e.g. macaroni and spaghetti, comprises cooking the product in boiling water, quenching the cooked product with water to produce a product having a moisture content of 60-65% by weight, immersing the quenched product in water at 35‹-125‹F. to increase the water content of the product to 70-80% by weight and to swell the product, and dehydrating the product by circulating hot air at 130‹-210‹F. such that moisture is evaporated from the interior of the product at a rate substantially equal to that from which the moisture is removed from the exterior of the product. As shown, the pasta products supplied by hopper 12 are cooked in unit 16, quenched by spray 22 and in unit 20 supplied with fresh water from line 24 and with water recirculating from a subsequent stage from line 46, passed via pump 28, wash unit 32 and pump 36 to unit 40 where the pasta products are drained, soaked in unit 48 provided with screw conveyer 49 and supplied with fresh water from line 50, drained on a belt 56 and dried in a 3-stage hot air drier A. B. C. (Fig. 2).
Patent GB-1116244-A (GB)
Title: Staple blank and staple element strip
Inventor: LIBBY MARVIN
IPC: F16B15/08
Filed: 1966-04-18
Abstract: 1,116,244. Staple packages. SPOTNAILS Inc. 18 April, 1966, No. 16957/66. Heading B8 [Also in Division F2] In a package of staple blanks, each staple has a layer of adhesive 16 intermediate its, ends, and is joined into a package by a tape 17 which extends laterally on each side of the adhesive at 18 and 19. The cross-section of each staple has arcuate sides so that the package can be more easily rolled.
Patent GB-904360-A (GB)
Title: Improvements in or relating to electric arc electrodes
IPC: H01B1/04
Filed: 1959-05-19
Abstract: 904,360. Arc electrodes. SOC. LE CARBONELORRAINE. May 19, 1959 [May 21, 1958], No. 16967/59. Class 39 (1). In a high intensity arc electrode, the core comprises a mixture of calcium fluoride, silicon carbide or a silicon compound, artificial graphite or any other carbon substance, and one or more of the oxides of the transition metals of Group IV, V or VI of the Periodic Table. The core paste is generally constituted by: 68-75% CaF 2 , 6-12% silicon carbide or a silicon compound, 18-25% carbon material and 1.1- 3.5% of oxides of the metals of the groups noted above. A preferred composition is 70% CaF 2 , 10.5% SiC, 18% artificial graphite, 1.5% tungstic oxide. The carbon is preferably made in the manner described in Specification 773,579. The core may also be injected as a paste into the outer layer which may have a starred, fluted or cylindrical hole, or the core may be in the form of a homogeneous member hardened at high temperature and subsequently introduced into the hole of the outer layer. Electrodes of this type may be used in a rotating positive anode type of lamp where the angle between the electrodes is 155 degrees. The electrode may have an external diameter of 13.6 mm. and a core diameter of 6.6 mm. The outer shell of the electrode is of carbon black or coke or a mixture thereof, the preferred form comprising 90% carbon black and 10% coke.
Patent GB-1138471-A (GB)
Title: Copolymers of vinylidene chloride, their manufacture and use
IPC: C08F214/08
Filed: 1967-04-13
Abstract: 1,138,471. Vinylidene chloride copolymers containing epoxy groups. CIBA Ltd. 13 April, 1967 [25 April, 1966], No. 17051/67. Headings C3B and C3P. [Also in Division B2] Copolymers comprise (a) 80-95% of vinylidene chloride, (b) 2-19% of another ethylenically unsaturated monomer and (c) 1-6% of a compound of the formula in which R 1  and the spiro carbon form a saturated carbocyclic six-membered ring having an epoxy group attached to two carbons not vicinal to the spiro carbon and which may contain a methylene bridge and R 2  is a carbon atom having an ethylenically unsaturated group vicinally attached. Preferred are the compounds Component (b) may be an alkyl acrylate or methacrylate or acrylonitrite. Polymerization is effected in solution or, preferably, aqueous emulsion using an alkyl sulphate and/or a naphthalene sulphonic acid-formaldehyde condensation product emulsifying agent. The catalyst is preferably redox, e.g. hydrogen peroxide and ascorbic acid with a ferrous salt. A modifier such as mesityl oxide can also be added. The products are soluble in tetrahydrofuran, cyclohexanone, esters, ketones, aromatic hydrocarbon, dimethylol formamide or dimethyl sulphoxide. The solutions are used for coating foils, particularly regenerated cellulose for which purpose is added an aminoplast precursor such as hexamethylolmelamine tetramethylether, ethers of methylol-urea, formoguanamine, acetoguanamine, benzoguanamine and similar compounds containing phosphorus groups. After immersing the foil in the solution it is dried at 120-130‹ C.
Patent GB-601525-A (GB)
Title: Improvement in electro-mechanical signal translating apparatus
IPC: H04R11/00
Filed: 1945-07-04
Abstract: 601,525. Electro-acoustic transducers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 4, 1945, No. 17108. Convention date, Oct. 31, 1940. [Class 40 (iv)] In an electro-acoustic translation device, such as a sound-power'telephone; a diaphragm is mounted between walls which have apertures connecting the air-spaces with the exterior and are arranged so as to form an acoustic network simulating an electrical transmission line, the values of the various masses, resistances and compliances being adjusted to obtain a desired frequency response. In the construction shown in Fig. 1, the diaphragm 1 is mounted in a housing 3 having a front wall 5 with an aperture 13, and a back wall 7 having equally spaced apertures 15 leading to a rear casing 53 and an aperture 25 terminated by a cavity 29, Fig. 4. The casing 53 is provided with a tubular opening 57, Fig. 2 (not shown). The apertures 13, 15, 25 and openings 57 are provided with screens 19 of foraminated material to constitute acoustic resistances analogous to R4, R2, R3 and R1, respectively, in a transmission line, Fig. 5 (not shown). The section and length of tube 57 is adjusted so that the resonance f1, Fig. 6, produced by the mass of the air in tube 57 and the compliance of the air in the casing 53 is the lowest at which transmission is required.. The mass of the air in opening 25, in combination with the compliance of the air in the cavity 29, is made to resonate at the highest frequency required, f4, as is also the compliance of the air in the back space 11 in combination with the mass and compliance of the vibratory system, which combination with the compliance of the air in cavity 29 produces a further resonance f3. The mass and compliance of the vibratory system is adjusted to as high a resonance f2 as will allow the frequency f1. The mass of the air in the front opening 13, in combination with the compliance of the air in the chamber 9, is made to resonate at a high frequency to counter the excessive peak which would otherwise occur. The values of the acoustic resistances R1, R2, R3, R4 are adjusted to reduce the individual peaks to flatten the response characteristic as indicated in Figs. 7 to 9 (not shown). Details are given of the mounting of the diaphragm 1 and the method of connection to the driving unit 39, details of which are also given.
Patent GB-781393-A (GB)
Title: Improvements in or relating to planing machines
IPC: B23Q5/22
Filed: 1955-06-14
Abstract: 781,393. Planing. GACK, L. June 14, 1955 [June 16, 1954], No. 17111/55. Class 83 (3). [Also in Group XXIII] A planing-machine comprises a tool-slide 2, driven by an adjustable crank-pin 16 and an arm 12, and a second crank-pin 23 which is adjustable together with the crank-pin 16 and which, through a connecting-rod 27, rocks a cam-plate 30 as the slide commences a returnstroke, to turn the tool 5 and produce an arcuate cut on the work. A spring holds the tool 5 in a cutting position determined by a cam 8 abutting a stop 6. The cam 30 is adjustable to control the arcuate cut and is contacted by a roller 33 on a lever 31 which supports a rod 35 and a block 36 on which runs a roller 38 connected to the tool-holder 4. As the block 36 rises and falls, so the tool is swung to make the arcuate cut. The work-table 3 is adjustable horizontally on a vertically-adjustable knee. The tool-holder 4 may be replaced by a grinding- wheel, the mechanism 30, 36 then being ineffective. Specification 698,292 is referred to.
Patent GB-1391475-A (GB)
Title: Cutting control system and method in rolling mills
IPC: B23D36/00
Filed: 1972-04-13
Abstract: 1391475 Controlling shearing BRITISH STEEL CORP 12 July 1973 [13 April 1972] 17114/72 Heading B3 A system for controlling the operation of cutting means 15 downstream of a rolling mill 10 for cutting a rolled elongate workpiece 13 comprises a comparator 23 for producing, from data proportional to the speed of travel of a workpiece on the upstream and downstream sides of the mill, an elongation factor, data storage means for storing the factor and a computer 30 which has access to the elongation factor and data inputs relating to one length of a further workpiece to be rolled in the mill and to the permissible lengths into which it may be cut and which produces an output signal to the cutting means to control the lengths into which the further workpiece is cut. The passage of the trailing end of a bloom 13 past a photo-cell 20 actuates a pulse generator 22 connected to a billet-measuring roll 14. The pulses generated during travel of the trailing end over a known distance between photo-cell 20 and a photo-cell 21 are fed to the comparator 23. The elongation factor produced is stored for use when a bloom of similar dimensions is to be rolled and cut and may be recalculated and corrected if necessary during the rolling of the further bloom. The length of an incoming bloom is measured before it enters the mill by, e.g. photo-cells 29 and the measurement fed to the computer which has access to a previouslyderived elongation factor and thus can calculate the rolled billet length. The computer is supplied from input 3, with information necessary to ascertain the lengths into which the billet should be cut to minimize waste and signals these lengths to a cut-to-length logic unit 32 of the shear. The operator may feed into input 31 his estimate of the cutting instructions for the unit 32 and adjust it if necessary after checking its accuracy on read-out means. A motor 35 driving the measuring roll 14 is actuated when the leading end of a billet leaves the mill 10 and a pulse generator 36 feeds data on the length of billet passing the roll to the cutter control unit 32.
Patent GB-1506438-A (GB)
Title: Method and apparatus for cooling a continuous steel casting
IPC: B05B13/02
Filed: 1975-04-24
Abstract: 1506438 Nozzles CONCAST AG 24 April 1975 [26 April 1974] 17132/75 Heading B2F [Also in Division B3] A continuous casting 1 is cooled by spray fans 14, 14' directed, at a controllably variable rate, in practically the same direction, between consecutive guide elements such as rollers 3, 4 or lattice cooling-grids, the fans 14, 14' coalescing to a single substantially flat sheet 15 of coolant which in thickness and direction corresponds substantially in thickness and direction to either of the fans 14, 14' alone. Coolant water controlled by valves 16, 16' and supplied by pipes 10, 10', issues perpendicularly to the direction of flow, from slots 12, 12' in nozzles 11, 11'. The distance of at least one of the nozzles from the casting 1 is adjustable. For a narrower spacing of the slots 12, 12', in another embodiment, the nozzles 11, 11' are at different distances from the casting 1 and the jets 14, 14' are more nearly co-directional. The width of the coolant sheet 15 may be equal to the casting width over which the pressure and flow rate of the coolant are uniform. Alternatively, the spray fans 14, 14' may have different included angles so that the wetted area may be more intensely cooled in the middle. They may have different characteristics for a non-uniform distribution. Details of spatial distances and dimensions and water pressure are given.
Patent GB-1381955-A (GB)
Title: Vacuum switches
IPC: H01H33/66
Filed: 1972-04-13
Abstract: 1381955 Vacuum switches SIEMENS AG 13 April 1972 [13 April 1971] 17181/72 Heading H1N A vacuum switch comprises a pair of axially spaced relatively movable contact assemblies each of which comprises an annular arcing contact 5, (6) surrounding an eccentric main contact 1, (2) the arcing contact 5 (6) being electrically connected to the main contact 1 (2) by a contact carrier 7 (8) and a connecting member 9, (10). Each arcing contact 5 (6) has a discontinuity gasket 18 in its annular path, and each eccentric main contact 1 (2) provides a contriction in the gap between it and the arcing contact 5 (6) whose narrowest point 17 is situated an angle α from the adjacent side of the region joining the contact carrier 7 (8) to the arcing contact 5, (6), the angle α being between 0 and 30 degrees. The discontinuities 18 eccentric contacts 1 and 2 and the narrowest points 17 of the constrictions are axially aligned. An arc between the main contacts 1 and 2 is magnetically shifted to the arcing contacts 5, 6 and then magnetically rotated around the annular arcing paths. The slots 18 may be tangential to the region joining the contact carriers 7, 8 to the arcing contacts 5, 6 and extend perpendicularly or obliquely between the axially spaced end faces of the arcing contacts. A metal shield 11 prevents metal deposits on the insulating body 12 of the vacuum switch.