baber/WOPTO huggingface dataset:
Patent GB-1521759-A (GB)
Title: Development apparatus
IPC: G03G15/08
Filed: 1975-10-31
Abstract: 1521759 Toner supply for electrostatographic printing machine XEROX CORP 31 Oct 1975 [20 March 1975] 45522/75 Heading B2L Developer unit for a electrostatographic printing machine has a toner particle supply in the form of a rotating cylinder 72 provided with buckets 78 on the periphery thereof, each bucket being formed by a pair of transverse walls 126, 128 [Fig. 4] one of which is higher than the other. The particles supplied to the bottom of housing 70 by conduit 94 within cylinder 72, are carried to the vicinity of magnetic transfer roll 74, picked up thereon and transferred to magnetic developer roll 76 adjacent the latent image bearing surface 12 supported on roll 10. Toner not picked up on roll 74 returns to the bottom of the housing via slots 80 inbetween each bucket. Carrier particles and unused toner are recycled from roll 76 along the lower wall of the housing 70. The housing is retractable away from roll 10 by means of spring 102, the housing being supported on rolls 98, 100. The developer roll is brought into operation by operation of gears 106, 110 in the directions shown. In multi-colour printing three developer units may be used [see Fig. 2 (not shown)] arranged in series to supply different colour absorbing particles.
Patent GB-997865-A (GB)
Title: Improvements in or relating to combine harvesters
Inventor: RHOTEN MYRON WESLEY
IPC: A01D41/14
Filed: 1962-12-03
Abstract: 997,865. Harvesting machines. ALLISCHALMERS MANUFACTURING CO. Feb. 24, 1964 [Dec. 3, 1962], No. 45603/62. Heading A1F. The header 1 of a combine harvester is movable above a pivot 2 by a jack 4 and is characterized in that the pressure in the hydraulic circuit supplying the jack is controlled by a gas accumulator 11 having a diaphragm 13 whereby small changes of pressure in the hydraulic circuit due to vertical movements of the header are absorbed by the gas in the accumulator without substantial changes of pressure in the hydraulic circuit.
Patent GB-1366889-A (GB)
Title: Electrical contactors
IPC: H01H50/20
Filed: 1970-09-25
Abstract: 1366889 Electromagnetic contactor CABLEFORM Ltd 20 Sept 1971 [25 Sept 1970] 45709/70 Heading H1N In order to provide a rolling or wiping action between contacts, an increased contact gap for a given armature travel whilst maintaining an adequate contact pressure, and allow the incorporation of magnetic arc blow out devices, a plunger armature contactor having a fixed contact 12 which co-operates with a moving contact 11 mounted on one end of a conductive strip 10 is so designed that on energization, the strip 10 moves from the position marked 4 to the position marked 3 (Fig. 2) under the influence of springs (not shown), to the position 2 (Fig. 1) in which the contacts 11, 12 close and finally to the position 1 (Fig. 1) under continued movement of the armature along line F, and on de-energization springs (not shown) acting along line F<SP>1</SP> move the strip 10 from the position marked 1 to the position marked 2 whereupon an L-shaped projection 14 of the strip 10 is arrested in its upward movement by a stop E so that the strip 10 is forced to pivot about stop 4 until it is arrested by stop B. A braid 15 connects strip 10 to stop B which also acts as a terminal. In Fig. 3 (not shown) stop E is formed as a contact and co-operating strip projection 14 carries a contact so that a change-over switching action is provided. In the contactor shown in Fig. 4 plunger armature 22 is coupled to strip 10 by an insulating collar 24 which is biased upwards by springs 25. A bowed blade 29 holds the strip 10 against collar 24. An arc-chute assembly (33), 34 and blow out magnets (35, 36) are provided on opposite sides of strip 10.
Patent GB-1399827-A (GB)
Title: Electric smoothing irons and to stands therefor
IPC: D06F75/38
Filed: 1971-10-01
Abstract: 1399827 Electric irons; iron stands; ironing boards BRITISH DOMESTIC APPLIANCES LTD 29 Sept 1972 [1 Oct 1971] 45870/71 Heading D1A [Also in Division H2] A soleplate 21 of an iron is provided with recesses 21a in the bottom accommodating electric terminals 32 which are engageable with supply sockets 17 when the iron is rested soleplate down on an associated stand 10. The stand comprises a spring loaded earth terminal 18 which is first contacted by the soleplate when the iron is placed on the top of the stand. Depression of the terminal 18 permits U- shaped locking members 11 to disengage from top extensions 1b when the top may descend, permitting the iron terminals 32 to engage shrouded terminals 17 and may contact a button 30 to actuate a microswitch 5 which completes the circuit from a supply cable 6 to the iron. The iron with a point at each end joined by two convex sides of different curvature is described more fully in Specification 1399826. An ironing table comprises a trapezoidal top 51, a sheet rail 55 which is slidable transversly of the top 53 and mounts the iron support 10 at one end, a foldable sleeveboard (66, Fig 11 not shown) on slidable pivotable supports and a pair of folding legs 59, 60 which are connected together by a pivot pin 65 which may be fitted in selected holes 64 of the legs to adjust the height of the top.
Patent GB-1090450-A (GB)
Title: Aminoplast moulding powder
Inventor: GELHAAR ERIK OLOV BO
IPC: C08L61/20
Filed: 1966-10-13
Abstract: A moulding powder comprises an aminoplast resin (e.g. a melamine-formaldehyde or urea-formaldehyde condensate) and a cellulose filler which has an optical brightness of at least 90% GE (TAPPI Standard T 452m-58) which contains from 12-20% of b - and or g -cellulose the remainder being a -cellulose.
Patent GB-1487583-A (GB)
Title: Magnetron device
IPC: H01F30/00
Filed: 1974-10-23
Abstract: 1487583 Magnetrons TOKYO SHIBAURA ELECTRIC CO Ltd 23 Oct 1974 [12 Nov 1973] 45878/74 Heading H1D High frequency radiation from the cathode leads of a magnetron, e.g. for an oven, is suppressed by including in each cathode lead a first choke element, including a ferrite core of relatively high resistivity, in series with a second choke element including a second ferrite core of relatively low resistivity. Preferably, the first element is connected nearest the cathode. As shown, the cathode heater leads 16a, 16b are provided within the shield box 22, with coils 18a, 19a and 18b, 19b, wound on ferrite cores 20a, 21a of 10 k ohm cm. resistivity, and 20b, 21b of 30 ohm cm. resistivity, respectively. In further embodiments, shield cylinders (26a, 26b, Figs. 3 and 4, not shown) with inner insulating tubes (27a, 27b) are provided around coils 19a and 19b; additional shielding may be provided between coils 18a, 18b and 19a, 19b (Figs. 5 and 6, not shown); a plurality of second choke elements may be provided in series in each lead (Figs. 7A and 7B, not shown), to increase the bandwidth of the noise suppression; the two first choke elements and the two second choke elements may be provided by passing the two cathode leads through a corresponding pair of parallel holes in a single first and a single second ferrite bead (Figs. 8 and 9, not shown); and a repetitive sequence of such first and second beads may be employed (Fig. 10, not shown). The magnetron 11 is provided with a magnet 13 and cooling fins 14.
Patent GB-1112572-A (GB)
Title: Improvements in or relating to plunger pumps
Inventor: BRIAN WILLIAM JOHN
IPC: F04B9/14
Filed: 1963-11-22
Abstract: 1,112,572. Reciprocating pumps. MUNSTER SIMMS & CO. Ltd. Nov. 16, 1964 [Nov. 22, 1963], No. 46128/63. Heading F1A. In a pump which includes a plunger assembly 13, comprising a plunger 14, a plunger rod 15 and a plunger head 19, the assembly being slidable in a barrel 10 between an inner position (as shown) and an outer or extended position, to which latter position the assembly is urged by a spring 16, a plate 17 is located adjacent that end of the barrel from which the plunger rod protrudes and is formed with an aperture through which the plunger head can pass, stop means being provided for retaining the plunger head 19 between the plate 17 and the barrel end. The plunger head and the aperture in plate 17 may both be non-circular, e. g. hexagonal, so that the plunger may be moved to its inner position, when the head is aligned with the aperture, and retained therein by rotating the plunger head relative to the plate, the edges of the head then abutting the plate, as shown. Alternatively, one or more fingers mounted on the plate may be extendable over the aperture to form the stop means. In this case, the head and the aperture may be circular.
Patent GB-1360295-A (GB)
Title: Process and apparatus for the purification of an aqueous waste stream eg from a silicone-polymer producing plant
IPC: B01D17/00
Filed: 1972-10-06
Abstract: 1360295 Purification GENERAL ELECTRIC CO 6 Oct 1972 [22 Nov 1971] 46175/72 Heading C1C A process for purifying aqueous waste comprises (A) conducting the waste to a flotation and sedimentation zone, wherein water-insolubles of a lower and greater density than water are removed; (B) conducting the waste from this zone, adjusting its pH to at least 12; (C) feeding the waste to a clarification zone wherein insolubles having a density greater than that of water, are removed; (D) conducting the waste to an ozonation zone, and thus obtaining a purified waste stream, wherein (E) the waste is conducted to at least one holding zone which is prior to the ozonation zone and subsequent to the flotation and sedimentation zone. The process is particularly applicable to the treatment of aqueous waste material from a silicone polymer producing plant. Ozonation may be carried out in two zones wherein a major portion of the waste is introduced into the upper portion of a first zone, the remaining portion being introduced into the upper portion of a second zone, the temperature of this portion being between 0‹ C. and 5‹ C. An ozone-containing gas is introduced into the lower portion of the first ozonation zone, an ozone-treated product is removed from this lower portion, and a gaseous stream is led from the upper portion of this zone. This stream is conducted to the lower portion of the second ozonation zone. An ozone-treated product is removed from the lower portion of the second zone and a gaseous stream is removed from the upper portion thereof. This stream is fed to an ozone-generating zone from which ozone is fed to the lower portion of the first ozonation zone. The second ozonation zone is smaller than the first but, compared to the first zone, provides a more efficient contact per unit volume between liquid and gas. The process of the invention may be carried out in the apparatus shown in Fig. 1, wherein waste liquid is conducted to a flotation and sedimentation vessel 2. Water insolubles of a lesser and greater density than water are removed through means 3 and 4. The waste is then conducted to holding vessel 6, and then to a series of mixing vessels 12, 16 and 19. Each of these vessels is provided with a mixing means, and vessel 12 is provided with inlet 13 through which the pH of the waste may be adjusted by the addition of an alkaline material. After passage through the mixing vessels the waste passes to clarifier 22. This clarifier is provided with scraper means 24 and outlet means 25 and 26. Liquid waste passes on to a degasifier 27 and then to holding tanks 33 and 35. The amount of waste fed from these tanks to the ozonation zone 42 is controlled by means of flow measuring device 37, organics concentration analyser 38 and multiplier element 39. After ozonation, the purified waste may have its pH adjusted by mixing in vessel 47 with unpurified waste from holding tank 6.
Patent GB-1360081-A (GB)
Title: Photopolymerisable elements
IPC: G03F7/09
Filed: 1971-10-05
Abstract: 1360081 Photo-polymerizable materials E I DU PONT DE NEMOURS & CO 5 Oct 1971 [5 Oct 1970] 46315/71 Heading G2C A photo-polymerizable element comprises (a) a polymeric support carrying (b) a photopolymerizable layer of an ethylenically unsaturated monomer, a photo-initiator and a polymeric binder; the layer being at least 1À27 microns thick and having an optical density of less than 0À7 and the monomer being present in excess of the absorptive capacity of the binder so that a layer of free monomer is present at the surface remote from the support. A temporary cover sheet (c) or a metal or polymeric layer (d) may be applied to layer (b), the adhesion of (b) to (a) being greater than to (c) or (d). The element, after applying layer (d), may be imagewise exposed through the support and stripped apart leaving the exposed areas on layer (d) and the unexposed areas on the support (a). The unexposed areas may either be uniformly exposed to produce a resist image or be transferred to a receptor sheet under pressure the unexposed areas being optionally powder developed before either step. The element may be uniformly heated after exposure and before stripping. Colour proofs may be produced by powder development of the unexposed areas on the support (a) followed by transfer of powder plus unexposed areas by heat and pressure to a paper sheet and repeating for another colour. Specified binders for layer (b) are vinylidene chloride copolymers, ethylene/vinyl acetate copolymers, cellulose ethers, vinyl chloride or acetate polymers or copolymers, acrylic polymers and synthetic rubbers e.g. butadiene/  acrylonitride copolymers, chlorinated isoprene or 2-chloro-beta-1, 3-diene polymers. In the examples, polymethylmethacrylate, chlorinated rubber or a mixture thereof or polyvinyl chloride are used and pentaerythritol triacrylate or trimethylolpropane triaerylate is used as the monomer, the binder: monomer ratio varying from 0À21 to 3À46 to 1. The layer (b) may contain a dye.
Patent GB-1362498-A (GB)
Title: Flameproof moulding compositions
IPC: C08K5/06
Filed: 1972-10-06
Abstract: 1362498 Flameproof polymer compositions CHEMIE LINZ AG 6 Oct 1972 [19 Oct 1971] 46354/72 Heading C3P Flameproof moulding compositions comprise (1) an olefin or styrene polymer, (2) 2 to 5 weight per cent of antimony oxide and (3) 4 to 9 weight per cent of a dibromopropyl monoether or diether of a perchlorinated monoaromatic hydroxy compound. The polymer may be polyethylene, polypropylene, a mixture thereof, an ethylene/propylene copolymer; a polybutene or a polystyrene. The halogen compound may be pentachlorophenyl dibromopropyl ether, heptachloronaphthyl dibromopropylether or a tetrachlorophenylene bis(dibromopropyl ether). Examples describe compositions comprising polypropylene, antimony oxide and pentachlorophenyl dibromopropyl ether.
Patent GB-1076847-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H13/14
Filed: 1963-11-25
Abstract: 1,076,847. Switches held set and freed mechanically. DEWHURST & PARTNER Ltd., and N. TURNER. Nov. 25, 1964 [Nov. 25, 1963], No. 46415/63. Heading H2B. A switch assembly, for operation by a lift, for example, to indicate whether the lift is at, above or below a given position, comprises three pushbutton switches mounted side-by-side on a base-plate with a rocker member overlying the buttons of all three switches and an operating lever pivoted on the base-plate such that one end is slidable over the rocker member to urge it to depress the button of each respective outer switch when positioned thereover and all three buttons when positioned over the middle switch. The two outer switches are of normally closed construction and the middle switch is of normally open construction so that in each of the three positions of the operating lever only one switch is closed. Instead of being rotatable the operating lever may be translatable, for example, carried by the lift or other prime mover.
Patent GB-1057479-A (GB)
Title: Double-end cylinders for locks
IPC: E05B9/10
Filed: 1964-11-14
Abstract: 1,057,479. Locks. JOSIAH PARKS & SONS Ltd. and H. R. ROBINSON. Oct. 28, 1965 [Nov. 14, 1964], No. 46456/64. Heading E2A. The invention relates to double-end cylinders for locks and of the type comprising two plugs 11, 12 at opposite ends of a cylindrical body 10, and a thrower 36 between the plugs, in which one plug 11 is associated with a key operated tumbler mechanism 16 and the other plug 12 is associated with a turn 20 continuously connected to the thrower, the key being arranged to couple the associated plug to the thrower 36 through a clutch means. According to the invention, the clutch means comprises a driven element 25 positively connected to the second plug 12 and spring biassed to a rest position, and a driving element 41 positively connected to the first plug 11 and spring biassed to a disengaged position relative to the driven element, the arrangement being such that insertion of the key 47 Figs. 4 and 5 (not shown) into the first plug 11 moves the driving element 41 against its spring 44 into engagement with the driven element 25, if the elements are located in relative operative positions, but causes the elements to abut to move the driven element 25 from its rest position if the elements are located in relative in-operative positions, subsequent rotation of the first plug 11 in the latter case taking place independently of the other plug 12 and taking up lost motion after the clutch elements 41, 25 have reached their relative operative positions whereupon the driven element 25 moves to its rest position and the driving element 41 assumes its engaging position, limited lost motion being permitted between the elements when they are in operative relative position. As shown, in which the body 10 is of generally oval cross-section, the driven element comprises a shank 26 slidably and non rotatably mounted in the plug 12 by a pin and slot connection 23, 27 against a spring 45, and a head 28 providing diametrically opposed flats 30 which are engageable with a bore 39 in the thrower 36, faces 31 and 32 and a pair of shoulders 33 and 34 which permit rotation of the element 41 by the key 47 in the position where a projection 43 on the element 41 abuts the face 31 when the head 28 is in its inoperative position relative to the element 41, and in the position when the projection 43 is subsequently engageable, with lost motion, with either of the shoulders 33, 34, upon continued rotation of the key. The plug is slidably and non-rotatably retained in the housing 10 by a pin and groove connection 22, 21. The element 41 is slidably and non-rotatably mounted in the plug 11 against the spring 44 and the arrangement of the parts is such that the thrower 36 is rotatable through 180 degrees and that a 360 degree movement of the key will bring the tongue 40 of the thrower to one or the other of its extreme position depending on the direction of rotation of the key.
Patent GB-1020289-A (GB)
Title: Telescopic slide member for drawers of furniture pieces and in particular of metal furniture pieces
IPC: A47B88/493
Filed: 1962-12-10
Abstract: 1,020,289. Drawer runners. R. ANZINI. Dec. 10, 1962 [Jan. 10, 1962; March 22, 1962], No. 46541/62. Heading A4B. A telescopic slide for furniture drawers comprises profiled pieces 1, 2 formed with complementary projections 2<SP>1</SP> and recess 1<SP>1</SP> providing guiding channels for rolling member 5, 6, Fig. 3 (not shown). A slot 7 is formed in the profiled piece 2 to allow bearing 6 to bear against recess 1<SP>1</SP>. In a modification, Fig. 5 (not shown), three profiled pieces, two of C-shape and one of L-shape, are provided. Complete withdrawal of the inner and intermediate profiled pieces is prevented by co-operating pins and stops.
Patent GB-1168461-A (GB)
Title: Quaternized Fluorindine Dyestuffs for Textile Fibers
IPC: C09B17/06
Filed: 1966-10-19
Abstract: 1,168,461. Fluorindine dyes. EASTMAN KODAK CO. 19 Oct., 1966 [20 Oct., 1965], No. 46702/66. Heading C4P. The invention comprises fluorindine dyes of formula wherein X and Y are o-phenylene groups which may be substituted or 1,2- or 2,3-naphthylene groups, R and R 3  are alkyl or substituted alkyl having up to 6 C atoms, R 1  is C 1-4  alkyl or benzyl, m and n are each 0 or 1 the sum of m and n being 1 or 2 and Z is an anion. The dyes are prepared by quaternation of the corresponding fluorindine dyes and are used to colour polyacrylonitrile fibres in blue shades.
Patent GB-1502905-A (GB)
Title: Field effect transistor amplifiers
IPC: H03F3/26
Filed: 1975-11-12
Abstract: 1502905 Field effect transistors SONY CORP 12 Nov 1975 [15 Nov 1974] 46717/75 Heading H1K [Also in Division H3] A field effect transistor having triode type I D -V DS  characteristics, Fig. 2 (not shown), has the drain current flowing normally to the plane of the substrate. An N-channel FET may comprise a drain region 1 of N- conductivity with a gate region 2 of P<SP>+</SP> conductivity in the form of a mesh embedded therein. An N<SP>+</SP> source region 3 on the surface of the drain 1 consists of e.g. over a thousand rectangular islands disposed in the mesh spaces. The islands are interconnected by a layer 5s extending over an SiO 2  insulating layer 4.
Patent GB-1360266-A (GB)
Title: Phosphating compositions and process
IPC: C23C22/42
Filed: 1971-10-07
Abstract: 1360266 Phosphating compositions PYRENE CHEMICAL SERVICES Ltd 7 Oct 1971 [30 Oct 1970] 46801/71 Heading C7U A phosphating composition comprises an alkali metal or ammonium acid phosphate and an acidifying agent comprising sulphamic acid in an amount such that the aqueous solution has pH 3-6. The phosphate is preferably MH 2 PO 4  where M = K, Na, NH 4 , and the amount of NH 2 SO 3 H is 0À5-10 wt per cent based on the weight of phosphate; where 0À5-3% NH 2 SO 3 H is used, H 3 PO 4  may also be added to provide the desired pH. The composition may also include a surfactant, e.g. a polyoxyalkylenated alkyl phenol or fatty alcohol or an ethylene oxide/ propylene oxide condensate, or an accelerator such as NO 3 -, NO 2 -, ClO 3 -, molybdate, or an aromatic nitro-compound with a phenolic function. A solid composition may be formulated comprising (wt per cent) 75-95 phosphate, 0À4-10 acidifying agent, 0-15 surfactant and 0-10 accelerator; 5-90 g of this is dissolved per litre to give a phosphate concentration preferably of 5-80 g/l. Steel may be treated with the composition, and post-treated in a solution containing hexavalent Cr or hexa- and tri-valent Cr.
Patent GB-1243810-A (GB)
Title: Improvements in or relating to the operation of electrolytic cells for aluminum production
IPC: C25C3/06
Filed: 1968-10-02
Abstract: 1,243,810. Aluminium fused electrolyte cells. KAISER ALUMINUM AND CHEMICAL CORP. Oct. 2, 1968 [Oct. 19, 1967], No.46845/68. Heading C7B. An electrolytic cell for producing Al, e.g. using a fused electrolyte of alumina and cryolite, is operated by (a) lowering the carbon anode when the voltage drop across the cell exceeds 150% of the normal operating value, to reduce the anode-cathode distance to 30-60% of the normal operating distance, (b) raising the anode to restore the normal anode-cathode distance, whereby the anode effect is terminated, and (c) adjusting the available alumina concentration in the electrolyte to 2-6% by weight before, during and and/or after either or both of steps (a) and (b), e.g. by breaking the overlying crust to cause alumina placed thereon to feed, preferably in increments, into the electrolyte.