baber/WOPTO huggingface dataset:
Patent GB-319476-A (GB)
Title: Improvements in and relating to steam condensers
IPC: F28B5/00
Filed: 1928-09-03
Abstract: 319,476. Haber, E. Sept. 3, 1928. Combined jet and surface condensers in which the condensate maintained in circulation serves to condense the steam, are provided with a mechanical propelling device to circulate the condensate, and to assist the supply of steam and the discharge of condensate. Water from condensation is circulated by a propeller 4 in a closed channel provided by a casing 1 and draws with it waste steam from a pipe 10 the end of which is centrally disposed in the channel. Around the pipe 10, the casing is enlarged to assist the mixing of the steam and condensate before the mixture passes through heat exchanges 2, 3 disposed across the channel. Additional cooling medium may be supplied through a, pipe 27 within the pipe 10. Excess condensate is withdrawn by a centrally disposed pipe 11 arranged opposite to the pipe 10. The heat exchangers may themselves be arranged in a circulatory system if water is used as the cooling medium but if air is used the heat exchangers serve to pre-heat it. The casing has conical ends 21, 24 provided with apertures 22, 23, 25, 26, the upper cone being connected to an air pump and the lower serving to drain the condenser. Two circulation channels may be provided, the channels being disposed at an angle to one another.
Patent GB-1087014-A (GB)
Title: High speed spinning of high wet modulus rayon yarn
IPC: D01F2/06
Filed: 1965-06-15
Abstract: 1,087,014. High-speed spinning of high wet strength viscose rayon. ASAHI KASEI KOGYO KABUSHIKI KAISHA. June 15, 1965 [June 16, 1964], No. 25268/65. Heading B5B. Viscose is spun at high speed (70-200 m./min.) by the funnel stretch spinning process in to a low concentration acid coagulant using a two-stage coagulation, the first stage being in the funnel 3-4, of which the straight portion is limited to prevent turbulence, the second stage being below the funnel in the coagulant issuing from the funnel which drops into one or more containers 3-10, 3-10<SP>1</SP>, 3-10<SP>11</SP> through which the gel yarn also passes. The free fall between the funnel and first container or between successive containers should be not more than 15 cm. and the total distance L from funnel to thread guide 3-6 may be 40-50 cm. The gel yarn is stretched by not less than 10% by godets 3-7, 3-9. The stretching may be in air or in a bath 3-8. Specified spinning conditions are: viscose viscosity 200-3000 poises; degree of polymerization above 400; ratio of cellulose to total alkali concentration between 1: 0À4 and 1: 1; γ value above 65; a sulphuric acid concentration between 5 and 20 g./l.; sodium sulphate concentration between 0 and 80 g./l., with certain other limitations on the acid and salt concentrations; less than 0À1 g./l. of divalent metal sulphate; extrusion orifices of from 0À2 to 2 mm. diameter; stretch in funnel from 4 to 400 times; degree of swelling of gel yarns from 500 to 3000%; final stretch not less than 10%.
Patent GB-997861-A (GB)
Title: Indicating the liquid contents of containers improvements in or relating to devices for measuring or
Inventor: GREGORY JOHN EDWARD REGINALD
IPC: G01F23/70
Filed: 1962-07-02
Abstract: 997,861. Magnetic switches. FLIGHT REFUELLING Ltd. Sept. 17, 1963 [July 2, 19621, No. 25295/62. Drawings to Specification. Heading H2B. [Also in Division G4] A liquid level indicator comprises a magnetic float slidable on a closed upwardly-extending tube in the liquid to close one of a number of magnetically-actuated switches spaced along and inside the tube, thereby making effective a corresponding tapping point on a resistance chain to control the E.M.F. supplied to an electric meter.
Patent GB-997326-A (GB)
Title: Methods of manufacturing magnetic storage and magnetic storage arrays manufactured thereby
IPC: G11B5/702
Filed: 1963-06-26
Abstract: 997,326. Magnetic storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 26, 1963 [June 29, 1962], No. 25327/63. Heading H3B. [Also in Division HI] A magnetic storage array is manufactured by coating conductive wires with successive layers of wax and a ferrite resin mixture, mounting the wires in parallel alignment in two open frames, orienting the frames so that the wires are orthogonal, pressing the frames together so that the wire coatings adhere, cutting the wires away from the frames after partial curing has taken place and finally sintering the ferrite at higher temperatures. The wax and resin are burnt away during the sintering process, the wax providing a space between the wires and the surrounding ferrite which prevents fracturing of the magnetic material. The co-ordinate wires may be positioned either as shown in Fig. 1A or Fig. 2, the latter arrangement providing a web of ferrite 3 between the wires 4, 5 at each crossing point. Where more than one wire is provided in each co-ordinate at each crossing point, these wires are insulated and twisted together in Fig. 3 (not shown). Depending on the materials used, the suggested temperatures for the process are 25-150‹ C. for partial curing, increasing to 100-150‹ C. to melt the wax coating. The temperature is then raised, firstly to 600‹ C. to remove the resin and plasticizer and then to 900-1400‹ C. to sinter the ferrite. Annealed platinum, palladium, silver or copper may be used for the wires, and the wax coating may be either natural or synthetic such as beeswax, carnauba wax, polyethylene wax or paraffin wax. Other suitable wax-like substances are polyvinyl acetate, polyvinyl chloride and their copolymers. The ferrite resin comprises 40-80% by weight of calcinated ferrite powder, 5-60% of thermosetting resin plus catalyst and 0-30% of plasticizers. Suitable ferrite powders exhibiting the required rectangular hystesis loop are Fe 1 . 83 Mn 1 . 08 Cu. 09 O 4 , Fe 1 . 68 Mn 1 . 25 Cr. 06 Ni. 03 O 4 , Fe 1 . 7 Mn. 6 Mg. 7 O 4 , and Fe 1 . 65 Mn 0 . 95 Cr. 10 Zn. 25  Cu. 02 O 4 . The resins may be epoxy resins, polyester resins, melamine-formaldehyde resins or phenol aldehyde resins. Suitable catalysts for the resins are described, and examples of various viscosity control agents are given such as pine and castor oils, butyl glycidyl ether or a 1: 1 mixture of methyl ethyl ketone and amyl acetate. A modification is described in which rayon fibres are used instead of certain of the wires, the fibres being burnt out by the heat treatment to provide a hollow ferrite structure through which pluralities of metallic conductors are later threaded.
Patent GB-1182608-A (GB)
Title: Improvements in or relating to Rotary Pumps for Liquids Containing Solid Contaminants
Inventor: TURNER HORACE GEORGE
IPC: F04C11/00
Filed: 1966-06-07
Abstract: 1,182,608. Centrifugal separators. PLESSEY CO. Ltd. 22 May, 1967 [7 June, 1966], No. 25358/66. Heading B2P. [Also in Division F1] A centrifugal backing-pump for a liquid gear-pump has a rotor e and an annular chamber or pocket g into which solid matter suspended in the incoming liquid can be thrown by the rotor, a plug q facilitating removal of accumulated matter.
Patent GB-190551-A (GB)
Title: Improvement in the construction of tins and other containers, whereby appropriately made tight fitting lids are readily and easily removable
IPC: B65D43/02
Filed: 1921-09-26
Abstract: 190,551. Joy, R. A. Sept. 26, 1921. Frictionally-seated lids.-The mouth of a tin or like container is formed with a head f, Fig. 1, over which the lower reduced portion r of the flange of the lid L is adapted to fit forming a tight joint. To remove the lid it is pressed downwardly upon the body so that the reduced part r comes level with the reduced or neck portion n of the body; the lid can then be removed by raising one side, as shown in Fig. 4. If, as illustrated, the body is provided with a second lower bead b or with equivalent projections, depending tongues s may be provided on the lid flange to engage this bead, thereby preventing unintentional depression of the lid, or equivalent means may be employed to effect this. To remove the lid, these tongues are bent upwardly, as indicated in Fig. 4.
Patent GB-456932-A (GB)
Title: Improvements in or relating to gas-fired cooking ovens
IPC: F24C15/32
Filed: 1935-09-13
Abstract: 456,932. Gas cooking-ovens. SOUTH METROPOLITAN GAS CO., and TEMPLEMAN, C. J., 709, Old Kent Road, London. Sept. 13, 1935, No. 25492. [Class 126] A gas oven comprises an outer casing of moulded material, such as a mixture of asbestos and hydraulic cement, capable of withstanding the temperature, and having internal ribs 11 moulded on it which form, together with the outer surface of the cooking chamber 9, which it encloses, flues through which the gases pass around the chamber. In the form shown, the ribs are horizontal, and the gases after passing around them leave by a central inclined outlet flue 13 formed in the top of the casing. The casing is double-walled, the interspace being divided by ribs 16 into passages 17,18 which communicate at their upper ends. Air passes up the passages 17 and down the passages 18, from 'which it is delivered in a heated state to the combustion space beneath the cooking chamber. The passage between the two ribs 16 at the rear may also form an air uptake passage or, as shown, it may be blanked off by a wall 20 to form a pocket for a thermostat. An outer lagged casing 10 is provided. Specification 445,353 is referred to.
Patent GB-407342-A (GB)
Title: Improvements in or relating to yarn warping or beaming apparatus
IPC: D02H13/00
Filed: 1932-09-14
Abstract: 407,342. Warping and beaming yarns; warp beams. SPOWAGE, A. E., Portland Works, Portland Road, Nottingham. Sept. 14, 1932, No. 25606. [Classes 142 (ii) and 142 (iv).] Stop-motions ; yarns, measuring ; creels.- A yarn warping or beaming machine is provided with means for effecting stoppage electrically after a predetermined length of yarn has been wound or on breakage or undue slackening of the yarns, the completion of an electric circuit in either contingency energizing a pair of magnets 29, Fig. 8, and thereby rocking levers 31, 33 to release a spring actuated belt shifting rod 35 or 42. The yarns are drawn from supplies 2, Fig. 1, rotatably mounted on a movable creel 1, passed around a measuring drum 4, over guiding and clearing devices 7, 8, 10 and wound on a sectional beam 9 that is driven in any suitable way. The shaft of the measuring drum 4 is operatively connected to an indicating device 52 comprising two or more movable fingers and a corresponding number of stationary dials, the closing of the electric circuit to effect stoppage being dependent upon the fingers reaching a predetermined position on their respective scales simultaneously. To effect stoppage of the machine on yarn breakage a series of pivoted detectors 25, Fig. 4, are provided adjacent the measuring roller, a fallen dropper engaging a contact bar 28 to which an oscillating movement may be imparted by a cam or eccentric on the measuring roller shaft. Alternatively the detectors may be accommodated by and reciprocated with a part moving in unison with a reciprocating sley through which the yarns are passed. The yarns passing to the beam may be threaded through a plurality of perforated sley bars mounted on an adjustable support adjacent the beam 9 and on completion of each beam section a sley bar may be removed and attached to the beam to retain the threads in position. Each yarn supply bobbin 2 may be mounted on ball or anti-friction bearings and the yarn therefrom passed between two spring tensioning fingers. Cloth and warp beams.-The flanges of the sectional beam comprise two discs 14, Figs. 12 and 13 secured by rivets to opposite sides of a half-circular boss 15 which can be clamped to the beam 9 by bolts passing through a loosely mounted boss 18, additional security being obtained by passing a screw 18<a> through the upper boss into a hole in the beam. A distance piece 20 may be mounted between and secured to the discs.
Patent GB-262701-A (GB)
Title: Improvements in and relating to fire box doors for steam boilers
IPC: F23M7/00
Filed: 1926-10-14
Abstract: 262,701. Evans, A. Oct. 14, 1926. Doors.-A firebox door A having at its lower part .apertures E<1> closed or opened by a grid F sliding in guides F<1> is provided at its rear side with vertical guides J carrying slidably an upwardly curving canopy K. The upper aud lower surfaces K<4>, K<5> of the canopy are curved both longitudinally and transversely, and the rear opening K<3> is arranged over the crown of the fire. A slot F<2> is formed at the central portion of the slidable grid F through which takes a bolt G with a thumb-screw H for locking the grid in any desired position.
Patent GB-677869-A (GB)
Title: Improvements in or relating to magnetic induction accelerators
IPC: H05H11/00
Filed: 1950-10-20
Abstract: 677,869. Magnetic induction accelerators. SIEMENS - REINIGER - WERKE AKT.- GES. Oct. 20, 1950 [Oct. 31, 1949], No. 25668/50. Class 39 (i). A betatron in which the iron cross-section and the material of the accelerators and guiding field poles are so selected that magnetic saturation commences in both before the end energy of the electrons is reached, and in which the lengths of the lines of force in each field are so dimensioned that the reluctances of the two paths increase proportionately from the commencement of saturation. The reluctance of the saturated iron is equal to about 10 per cent of the reluctance of the air gap.
Patent GB-619068-A (GB)
Title: Electro-magnetic clutch and change-speed mechanism
IPC: F16H61/02
Filed: 1946-08-28
Abstract: 619,068. Change-speed gear; clutches. CHATELET, H. G. J. Aug. 28, 1946, No. 25755. Convention date, Nov. 15, 1944. [Class 80 (ii)] In an electromagnetic change-speed gear each speed element comprises electromagnets which are substantially fixed to the gear case and which, when energized, open a spring- engaged cone clutch to free a coupling between a planet carrier and annulus of an epicyclic train and to brake the annulus for power to be transmitted through the planet wheels and carrier. A driving shaft 1 is rotationally rigid with a sun gear 11 and a clutch cone 7 which co-operate through a corresponding cone 7<1> with an annulus 8 carrying a clutch plate 5. The planets 13 meshing with the gears 8, 11 are mounted on a carrier 10 to which is fixed a sun gear 14 engaging planets 15 having a planet carrier 10<1> integral with the driven shaft 1.. The annulus gear 9 of the second train is in cone clutch connection 10<11> with the planet carrier 10<1> and carries a clutch plate 6. The two clutch plates 5, 6 are co-operable with electromagnets 3, 4 respectively, rigid with the gear casing, to disengage the cones 7<1>, 10<11> and to brake the annulii 8, 9 to provide three speeds and a direct drive. In a further embodiment, a gear-box for a front-wheel drive vehicle is shown in which the driving and driven shafts are coaxial, a third stationary electromagnet provides a reverse drive, and a positive clutch disengages the driving shaft from the first sunwheel for neutral.
Patent GB-617333-A (GB)
Title: Improvements in or relating to abrasive articles and methods of producing the same
IPC: B24D11/00
Filed: 1945-10-04
Abstract: 617,333. Flexible abrasive articles. MINNESOTA MINING & MANUFACTURING CO. Oct. 4, 1945, No. 25797. Convention date, Feb. 24, 1942. [Class 60] [Also in Group XI] A flexible abrasive article is made by applying a layer of abrasive particles upon a backing such as paper, vulcanised fibre, or cloth coated with a thermosetting resin, and curing the resin by heat induced therein by a highfrequency alternating electric field, the heating being controlled so that the temperature of the abrasive particles does not exceed that of the resin. Alternatively, heat may be induced by a high-frequency alternating electric field in a thermosetting resinous sand-sizing adhesive applied over the abrasive particles, which are secured to the backing by a similar or different adhesive, e.g. a protein such as glue, casein, or soya bean meal. The thermosetting resin may be a phenol-, urea-, thiourea-, or melamine-aldehyde resin or an alkyd resin. The thermosetting resin may be partly set, e.g. by external heat, before exposure to the high-frequency field. Ranges of frequency are specified for use with silicon carbide and aluminium oxide abrasive grains. The abrasive particles may be coated with graphite or powdered metal, or the resin may contain, as a filler, silica, graphite, or metal in finely-divided form, to alter its electrical properties. The abrasive-coated web W, Fig. 2, may be caused to travel between bare or insulated, flat metal plate electrodes 5 and 6 which are connected to a source of high frequency alternating potential. The lines of force may be set up in and parallel to the plane of the travelling web, by having strip electrodes positioned close to its longitudinal edges, or by passing the web over spaced tubular electrodes 9, 10, Fig. 6, electrodes 9 being connected to one terminal and electrodes 10 to the other terminal of a source of high-frequency potential. The abrasive-coated web, after a preliminary incomplete cure by external heat, may be subjected to the high-frequency field as a coiled-up roll. As shown in Fig. 9 the abrasive coated material W is wound up on a metal drum 11 serving as one electrode, and is covered by an outer metal sleeve 12 serving as the other electrode. Alternatively the web W, Fig. 10, may be wound on a non-conducting core 13, and placed between flat electrodes 14 and 15 which may be bare or insulated. The roll W may be wrapped in a blanket of heat-insulating material.
Patent GB-1275796-A (GB)
Title: Method of combating soil insects, termites and nematodes using halogen-containing phosphorus compounds
IPC: A01P7/02
Filed: 1969-05-21
Abstract: 1275796 Combating pests with phosphorus compounds CIBA-GEIGY AG 21 May 1969 [28 May 1968 8 April 1969] 25854/69 Heading A5E [Also in Division C2] Soil is treated to combat insects, nematodes and termites by applying thereto a compound of the formula I: where Hal is bromine or iodine, X is oxygen or sulphur, and R 1  and R 2  are C 1-4  alkyl or chloromethyl, or where Hal is chlorine, X is oxygen or sulphur, and one of R, and R 2  is an optionally substituted C, group, and the other of R 1  and R 2  is alkyl or haloalkyl. The active compound may be applied in admixture with a suitable carrier.
Patent GB-932959-A (GB)
Title: Improved grease manufacturing process
Inventor: GREENWOOD JOHN
Filed: 1960-07-26
Abstract: A grease derived from a mineral oil base and a grease-making proportion of a metal soap of 12-hydroxy stearic acid is prepared by dehydrating the grease-forming mixture at a temperature between 180 DEG  and 220 DEG F., further heating the dehydrated mixture to a maximum temperature of 380 DEG -420 DEG F. for about 10 minutes, adding a grease anti-oxidant compound within the maximum temperature range, or at a temperature within 25 DEG F. before maximum temperature or within 20 DEG F. after maximum temperature is reached, and finally cooling the grease composition.  Anti-oxidants mentioned are phenothiazine and dialkyl-substituted phenothiazine, phenyl-a -naphthylamine, 2,6-tertiary butyl-4-methyl phenol, dioctyl diphenylamines, metal dithiocarbamates, alkylated bisphenols, metal (e.g. cadmium and zinc) salts of dialkyl dithiophosphates.  In the example the metal soap is the lithium soap of 12-hydroxy stearic acid.
Patent GB-241583-A (GB)
Title: Improvements in or relating to machines for dispensing measured volumes of liquid
IPC: G01F11/38
Filed: 1925-10-17
Abstract: 241,583. Waring, O. I. Oct. 17, 1924, [Convention date]. Moving-chamber apparatus. - Comprises a liquid container provided with spaced discharge openings and within which are located several measuring chambers having openings at the lower end which in one position of the chambers open communication with the container and in another position register with discharge openings, means being provided for moving the measuring chambers from one position to the other. The liquid container 11 mounted by standards 22 on a base 24 contains a. battery of measuring chambers 33 having their open lower ends mounted in spaced relationship in a plate or slide 30. This plate, together with the chambers, is adapted to slide over a fixed plate 25 through which and through the bottom of the receptacle pass tubes 15 spaced apart similarly to the ends of the chambers. In the plate 25 are also formed openings 28 which in the position shown in Fig. 1 place the chambers into communication with the container. Adjustable vent tubes 35 in the measuring chambers servo to regulate the height to which liquid can rise. The vessels 12 to be filled are carried on a trav 13 secured in position by a spring pin 17. The slide 30 is moved by a shaft 47 sliding through a gland in the side of the container and moved by a hand lever 45 to which it is pivoted. This hand lever is pivoted to a link 68 pivoted to a part 69 connected to the bottom of the container, and is also connected by linkage 57, 61 to a sliding drip tray 55 which is provided with flanged openings 55<a> which, when the measuring chambers are discharging, register with the tubes 15. In a modification, the tubes 35 are omitted and the measuring chambers are filled to the level of the liquid in the container, which level may be varied by providing an admission pipe and a discharge pipe which may be swung about a pivot so that its end is at different heights in the container. In a further modification, Fig. 7, the chambers 95 are formed in or built up with the slide 91 and are fitted with loose ejector plungers 96 carried from a lever 107 pivoting on a shaft 111. This lever is pivoted to the rod 102 of a piston 101 working in a cylinder 100 to which compressed air is admitted by a rotary valve 124. The slide 91 is moved by a hand-lever 116. rock shaft 94 and link 93. the hand-lever being connected by a link to a sliding bar 119 to which the drip tray 117 is connected. The valve 124 is connected by linkage to the sliding bar 119 so that it admits air to the cylinder when the measuring chamber is over the discharge passage 88, and exhausts the cylinder to the atmosphere, when the measuring chamber is charging, the shaft 111 being returned by a spring which is tensioned on the upstroke of the piston. A set-screw 140 is provided on the guide-bracket 141 to regulate the quantity received in the measuring chamber 95. The level of liquid in the container may be kept constant by a float valve controlling admission.