baber/WOPTO huggingface dataset:
Patent GB-332332-A (GB)
Title: Improvements in or relating to combined articles of furniture and weighing apparatus
IPC: G01G3/02
Filed: 1929-05-13
Abstract: 332,332. Avery, Ltd., W. & T., and Timson, W. May 13, 1929. Apparatus fitted to furniture.-The seat 7 of a stool or like article of furniture constitutes the platform of a weighing apparatus of which the whole of the mechanism is located below the seat and within the frame 5 of the stool, the indicating mechanism being capable of being concealed by a flap 29 hinged to the side of the frame, whereby the article presents the appearance of a normal piece of furniture when the weighing apparatus is not in use: The lower ends of four rods 9 depending from the seat are interconnected by stays 10 connected by a cross member to the centre of which is connected a coil spring 12, the upper end of which is secured to a plate 8 fixed to the top of the frame. Vertical movement of the seat is ensured by links 13, 14 arranged at right-angles and in pivotal connection with the stays 10 and a plate 15 supported from the plate 8, and by similar links 17, 18 coacting with the seat and the plate 8. A rod 19 pivoted to the seat has a slot engaging a pin 20 carried by a lever 21 pivoted on a bracket 22 depending from the plate 8. The lever carries a segmental rack 23 actuating a circular chart 27. The inner side of the flap 29 carries a mirror which enables the index 28 and the portion of the chart in register therewith to be observed by a person seated on the stool. When the flap 29 is closed, a projection 29<b>, Fig. 3<b>, thereon moves a spring-pressed lever 31 pivoted on the plate 8 into such a position that a slot 31a in the lever engages the lower reduced portion 7b of a pin depending from the seat, so that the shoulder on the pin prevents downward movement of the seat, thus locking the weighing mechanism against operation.
Patent GB-1280079-A (GB)
Title: Method and apparatus for the removal of solvents from lubricants
IPC: F04B39/16
Filed: 1970-03-26
Abstract: 1280079 Separation of volatile solvents from lubricating oil; dry-cleaning BOWE BOHLER & WEBER KG 26 March 1970 [31 March 1969] 14936/70 Heading BIB Solvent-contaminated lubricating oil, discharged from vacuum pump 2 which evacuates air and solvent vapour from housing I wherein textiles or grease-soiled metals are cleaned with a volatile solvent, is collected in vessel 20, after -the treating-operation in housing 1 has been completed, and the solvent is removed from the contaminated oil by opening valve 26 in pipe 25 thereby connecting the upper part of vessel 20 with the suction side of pump 2 so that vaporization of the solvent and foaming of the contaminated oil take place, the solvent vapour being delivered by the pump to condenser 11. The purified oil is then returned via valve 22 to the crankcase of the pump. Material-to-be-treated is placed in housing 1; and the air therein is then extracted by pump 2 and discharged to the atmosphere through oil-separator 7. The pump is then stopped and solvent is added to housing 1. After the material has been treated, the liquid solvent is drained from housing 1, and pump 2 is then employed to extract solvent vapour from the treated material and the housing, this vapour being passed through oil-separator 10 to condenser 11. The treated material is then removed from housing 1. The oil separated in separators 7 and 10 is drained into vessel 20 by opening valves 18, 19 and 26, and is desolventized as already described. If desired, separator 10 and vessel 20 may be heated by circulation of heat-transfer medium through pipe system 30, 31 and a distillation vessel 16 chlorinated and fluorinated hydrocarbons are referred to as solvents.
Patent GB-578190-A (GB)
Title: Improvements in or relating to rotary compressors
IPC: F04D29/28
Filed: 1941-11-21
Abstract: 578,190. Rotary compressors. HALFORD, F. B. Nov. 21, 1941, No. 15000. [Class 110 (i)] The blades of an axial inlet impeller are everywhere radial commencing with a helically curved portion which merges into a flat radial delivery portion. The blades, boss and disc are integral and the blades are formed by machining, without any bending, from a stamping or forging.
Patent GB-556406-A (GB)
Title: Improvements in or relating to the production of ferro-silicon
IPC: C21C7/00
Filed: 1942-10-26
Abstract: 556,406. Ferro-silicon; furnaces. , DUFFIELD, F. L. Oct. 26, 1942, No. 15022. [Class 82 (i)] [Also in Group XII] Ferro-silicon is made by passing into a charge of silica, iron oxide, and carbonaceous material, which may be briquetted, hot gases generated in a separate chamber by the semi-combustion of carbon, the reduced product being melted in another chamber for the separation of the ferrosilicon and slag. The apparatus shown comprises a conical chamber 2 to which the charge is fed from hoppers 4. Gases generated in an annular chamber 5 to which coke and preheated air are fed at 6, 8 respectively, are admitted horizontally through passages 9 to the charge. Tne resulting ferro-silicon and slag are melted in an electrically-heated cupola 11 with the addition of lime.
Patent GB-1184562-A (GB)
Title: Anti-Corrosive Coating Compositions
Inventor: GIBSON GEOFFREY MOORHOUSE
IPC: C09D5/08
Filed: 1966-04-05
Abstract: 1,184,562. A corrosion-inhibiting coating composition. ASSOCIATED CHEMICAL COMPANIES Ltd. 5 April, 1967 [5 April, 1966], No. 15082/66. Heading C3R. [Also in Division C4] A corrosion-inhibiting coating composition for metals comprises an organic solvent-based non-aqueous resin medium, e.g. an alkyd resin, and a chromic acid salt of one or more organic bases having at least one C 6  + branched chain, the salt(s) being wholly soluble in the resin medium and being present in an amount sufficient to provide the equivalent of 0.1-10% by weight CrO 3 , based on the weight of total solids in the composition. Suitable bases include primary, secondary and tertiary amines, quaternary ammonium bases, substituted guanidines, biguanides, and s-triazines, especially di-(2-ethyl-n-hexyl) amine, tri-(3,5,5,-trimethyln-hexyl) amine, a commercial mixture of tertiary alkyl primary C 12-14  amines or C 18-22  amines, a commercial mixture of secondary alkyl primary amines derived from n-undecane, 2,4,6- tris-(2-ethyl-n-hexylamino)-s-triazine, or 1,5- dialkyl biguanides or N,N<SP>1</SP>,N<SP>11</SP>-trialkyl guanidines derived from commercial mixtures as above. Alternative bases are the condensation products of ethylene diamine or diethylene triamine with certain carboxylic acids, particularly the imidazolines derived from naphthenic acid and either ethylene diamine or diethylene triamine, or the monoamide derived from naphthenic acid and ethylene diamine. The chromate or dichromate salt may be used. Suitable media are natural drying oils, alkyd resins and oleoresinous media. Example 2 discloses a paint based on an alkyd resin and also containing red iron oxide, blanc fixe, talc, calcium carbonate, white spirit, xylol and naphthenate driers, wherein the corrosion inhibitor is Armeen L 11 dichromate ("Armeen" is a Trade Mark), and Example 3 similar paints in which the Armeen L1 dichromate is replaced by di-(2-ethyl-n-hexyl)amine dichromate; or by 2,4,6-tris-(2-ethyl-n-hexylamino)-8.triazine dichromate. Single coats of the paints are coated with an alkyd undercoat, and then an alkyd gloss finish.
Patent GB-1355906-A (GB)
Title: Pipe clamp made of non-cast materials
IPC: F16L55/172
Filed: 1972-03-30
Abstract: 1355906 Band pipe clamps SMITH-BLAIR Inc 30 March 1972 [29 Oct 1971] 15150/72 Heading F2P [Also in Division E2] A clamp for a pipe has a malleable band with ends secured in a pair of lugs moved together by one or more nuts and bolts, each lug comprising an elongated lug bar and at least one bolt retaining member of non-cast metal having parallel spaced apart fingers connected at one end by an integral transverse portion or washer provided with means for accepting the shank of a bolt. The ends of the band 18, e.g. of stainless steel, are bent back and enclosed by channel section lug bars 20, 22 and are spot welded thereto. Alternatively the bent back ends are welded over the lug bars of rectangular crosssection. Each lug-bar 20, 22 or band end has a pair of bolt retaining members 40 of U-shape welded thereto and engaging with the opposed bar or end when tightened. The members 40 are offset as shown so that a longer finger, having a tapered end, of each lies outside the opposed member. Alternatively the members 40 on one side have less width to locate inside the opposed members. The members may not have integral transverse parts connecting the fingers but brackets, with flanges which locate over the fingers or under the lug bars and carrying the nuts and bolts, may be subsequently introduced for the tightening action. The clamp overlies a flexible gasket 14 to prevent a leak in a cracked pipe or to couple two pipes. The gasket is provided with a reinforcing member 24 which is exposed by the gap between the band ends. The band retaining members are of rolled, forged or extruded metal, e.g. stainless steel.
Patent GB-1078920-A (GB)
Title: Improvements in or relating to latchable bistable circuits
IPC: H03K3/037
Filed: 1966-04-05
Abstract: 1,078,920. Pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 5, 1966 [April 5, 1965], No. 15173/66. Heading H3P. A bi-stable circuit includes a pair of AND gates 2, 3, a device (OR inverter 1) responsive to an output from either AND gate to provide a SET signal + Y indicative of the bi-stable circuit being in a SET condition, a first input 6 of gate 3 being connected to receive the SET signal, a first train of gating pulses being applied to the second input 7 of gate 3, each pulse being effective to maintain an existing SET signal for the duration of that pulse, a second train of gating pulses being applied to the first input 8 of gate 2 to enable that gate to pass data pulses applied to its second input 9, the pulses of the first and second trains being synchronized but with a time difference such that the circuit assumes a RESET condition after each pulse of the first train. The first train is produced by source 10 and the second train is produced from the first by inverter 5, which also introduces a delay of about 7 ns. In the absence of a pulse from source 10, a pulse is applied at 8 to gate data pulses and provide SET output + Y. When a pulse from source 10 occurs at input 7, that pulse together with the existing +Y signal at 6 causes gate 3 to conduct to latch the circuit in the SET state. At the end of the pulse at 7, the 7 ns. delay before a pulse appears at 8 prevents the gating of data pulses, and the circuit assumes its RESET state for that period.
Patent GB-117547-A (GB)
Title: Improvements in or applicable to Artificial Legs or Feet.
Inventor: YEARSLEY HARRY
IPC: A61F2/60
Filed: 1917-10-20
Abstract: 117,547. Yearsley, H. Oct. 20, 1917 Limbs, artificial.-In a leg and foot, the ankle joint is formed by forked members H secured to the leg and carrying bolts M which pass through slots Z in the foot, a block of rubber L being interposed between the end of the leg and the foot. The toepiece N has a tongue 0 entering a slot in the foot and is further connected thereto and spring-controlled by springs Q connected at U, V to metal plates and having free ends which enter leather-lined sockets P. The free ends of the springs may be partially restrained by leather strips W.
Patent GB-672572-A (GB)
Title: Improvements in or relating to clips for securing lids to containers
Inventor: LAROQUE CHARLES ARTHUR DE
IPC: B65D45/18
Filed: 1950-06-19
Abstract: 672,572. Stoppers. METAL BOX CO., Ltd. Jan. 19, 1951 [June 19, 1950], No. 15318/50. Class 125(iii) Clips 1 or 1a for securing dished lids 7 or 7a in the mouth of a container 6 or 6a having an end seam or rim 13 or 13a round the mouth end thereof, are made of spring metal bent into the snapes shown. Three such clips may be equally spaced around the periphery of the container.
Patent GB-637228-A (GB)
Title: Improvements in or relating to tool holders for drilling and like machine tools
IPC: B23Q17/24
Filed: 1946-05-21
Abstract: 637,228. Microscopes. MACHINE SHOP EQUIPMENT, Ltd., FOULKES, E. M., (formerly FUCHS, E.), and SHANDON, E. R., (formerly SCHONDORFF, E.). May 21, 1946, No. 15360. [Class 97 (i)] [Also in Group XXII] In a tool-holder connection for drilling machines (see Group XXII), optical means are provided, for viewing a workpiece, comprising an object lens 5, an adjustablymounted prism 4, a graticule 3 bearing index - lines, and an eye-piece 2 adjusted by a hand-nut 8. The prism 4 is mounted in a block 14 and locked therein by a block 16 separated from the prism by a felt pad 18. The block 14 is initially adjusted laterally by a screw 19 and angularly by screws 23. A plug 28 protects the lens 5.
Patent GB-496028-A (GB)
Title: Improvements in and relating to the electrolytic purification of aluminium
IPC: C25C3/24
Filed: 1938-05-23
Abstract: 496,028. Electrolytic refining of aluminium. ALUMINIUM - INDUSTRIEAKT.-GES. May 23, 1938, No. 15370. Convention date, June 3, 1937. [Class 41] In refining aluminium by the method in which the anode alloy, the electrolyte and the purified cathode metal constitute superimposed molten layers the electrolyte is regenerated or corrected without interruption of the electrolysis by the addition of purified material in the form of coarse pieces scattered on the surface of the cathode layer through which it sinks into the electrolyte layer. The material may be previously heated. The purification may be effected by melting the salts together in suitable proportions and treating with metallic aluminium. Specifications 208,716, 293,353, [both in Class 39 (iii)], 405,596, and 469,361 are referred to.
Patent GB-110217-A (GB)
Title: Process and Apparatus for Distilling Coal, Wood, Peat, or Lignite for obtaining Useful Liquid and Solid Products.
Inventor: THOMAS WALTER
IPC: C10B1/04
Filed: 1916-10-30
Abstract: 110,217. Thomas, W. Oct. 30, 1916. Retort furnaces: gas-heating furnaces.-Apparatus in which coal, lignite, peat, wood or other material is distilled by passing therethrough numerous streams of hot gas is shown in elevation and part section in Fig. 2. A retort or chamber 5 is fitted removably within a heating jacket 4 mounted above or, preferably, on a producer 1 of any well-known kind, generating heating-gas which can be led along a pipe 3 to a burner 3<c>, within a gas-heating chamber 9, for supplying gas to the interior of the retort, or along a pipe 3a or pipe 3b into the heating-jacket 4. A form of apparatus suitable for use in small works is shown in Fig. 3. The retort 29 has a jacket 28, supplied with hot gases from a producer 1<a>, which is fitted with a coil 27 for heating gas supplied to the interior of the retort. A modified form of apparatus is shown in Fig. 4. The producer is domeshaped and has a double wall 50 through which gas passes from a main 57 to the interior of the retort 52, a number of pipes 51 connecting the dome with the various levels of the retort. Hot gases pass from the producer through apertures 50<a> into a chamber 54, in which the retort is set. An apparatus with regenerative chambers in which gas is burnt for heating the gas supplied to the interior of movable or fixed retorts is shown, in part, in Fig. 5. A producer 1<d> is situated be. tween regenerative chambers 60 and 61, each of which is divided into two communicating chambers by a vertical wall 62. The producer has a gas-outlet pipe 67, which can be put into communication with a stack pipe 68 or, by means of pipes such as 69, with either regenerator through ports 69a, 69<b>. Air is admitted to the regenerators for combustion of the gas. After passing through one of the regenerators, the gases escape by a stack pipe 66, one being provided for each regenerator. The regenerator 61 is shown in use for heating the gas, supplied through pipe 76, before it passes through the retort 72, which is mounted on a wheeled truck x, while the regenerator 60 is being heated by the gases from the producer.
Patent GB-895297-A (GB)
Title: Linear and logarithmic amplifiers for single and plural electrode ionization chambers
Inventor: CARLSON ROBERT LEWIS
IPC: G01T1/185
Filed: 1958-05-14
Abstract: 895,297. Signal compression systems. ROBERTSHAW-PULTON CONTROLS CO. May 14, 1958 [Aug. 15, 1957], No. 15522/58. Class 40 (4). [Also in Groups XL (a) and XL (b)] A logarithmic amplifier for use in a neutron radiation measuring arrangement (see Group XL (b)) comprises two linear amplifiers V1, V2 with a feedback path which includes an amplifier V3 and rectifier network 60, 62, 70, 72 and 76 which produces across resistors 74, 78 an output voltage which is balanced with respect to earth. The output voltage is applied across rectifiers Y1, Y2 each having a forward impedance which is an inverse logarithmic function of its applied voltage. The junction of the rectifiers is connected to the grid of V1 and the input signal to the amplifier is applied to the grid via a resistor 48. An output which is a logarithmic function of the input is obtained from the anode circuit of V2.
Patent GB-110617-A (GB)
Title: Improvements in or relating to Centrifugal Pumps, Blowers and Exhausters.
Inventor: SCHUELER GEORGE RICHARD
IPC: F04D1/04
Filed: 1916-11-01
Abstract: 110,617. Schneler, G. R. Nov. 1, 1916. Rotary-tube pumps; c a s i n g s ; impellerblades; starting, facilitating.-The rotor C has an interior chamber C' from which a number of channels c pass to the outer part of the rotor. The outlets of these channels are of wedge, taper, or cone shape and pass through gaps in fixed radial ribs or vanes d in the casing. In the form shown in Figs. 1 and 4, the outlets project radially and at their greatest radius fill the gaps in the vanes d. In the form shown in Fig. 5, the tubes c have tapering webs C<3> on their forward side. In the pump shown in Fig. 9, the projections are in an axial direction and the vanes d are inserted axially over the impeller. The inlet to the pump is preferably bent to form a trap a in which liquid is retained for priming the pump. When the rotor is rotated, the wedge-like portions thereof displace axially the fluid between adjacent vanes and fluid passes through the rotor passages to replace that so displaced. According to the Provisional Specification, the fluid chamber of the rotor may be connected to a hollow shaft.
Patent GB-429965-A (GB)
Title: Improvements in and relating to building or filling blocks
IPC: E04B2/22
Filed: 1934-05-25
Abstract: 429,965. Casings for stanchions and girders. CRAM, G. A., The Willows, Grange Gardens, Pinner, Middlesex, and RICHARDSON, J. O. C., The Loft, Seer Green, Bucking- hamshire. May 25, 1934, No. 15675. [Class 20 (iv)] Means for casing the steel structural members of buildings comprises blocks which are shaped and arranged whereby a pair of blocks is adapted substantially to surround a steel member, and the relative position of each succeeding pair of blocks along the member is reversed so as to obtain an interrupted or staggered bond. The blocks may be of E-shape, having the outer limbs A, B of different lengths and adapted to engage the flanges of a structural member of I-section. The limb C, which fits between the flanges of the girder, may be apertured, and, in some cases, omitted. The adjacent faces of the blocks may be provided with grouting grooves, and the exposed surfaces may be scored or roughened to key with a cement, plaster, or other finishing surface. The blocks may be reinforced by a bent metal rod F, one or both extremities of which may project from the limb A of the block to engage a recess or recesses in the adjacent block. If desired, each block may be formed of two U-shaped parts adapted when abutted together to form the equivalent of an E-shaped block. The space between the blocks and the steel member may be filled with cement &c.
Patent GB-959511-A (GB)
Title: Production of phthalic anhydride by catalytic oxidation
Inventor: NONNENMACHER HELMUT
IPC: B01J27/199
Filed: 1962-04-25
Abstract: Phthalic anhydride is made by treating o-xylene together with chlorine, or a chlorine compound which is vaporous under the reaction conditions, the weight ratio of chlorine, or chlorine compound, to o-xylene being from 2:100 to 1:100,000, with oxygen, or an inert gas containing free oxygen, for 5 to 50 seconds in the presence of a fluidized catalyst, at 250 to 380 DEG C., which comprises a porous carrier whose pores contain a mixture which is liquid during the reaction and which comprises vanadium pentoxide and potassium pyrosulphate or vanadium pentoxide, potassium pyrosulphate and sodium pyrosulphate with, or without, other additives; the weight ratio of vanadium pentoxide and optional additives to vanadium pentoxide being below 2:3, and the weight ratio of vanadium pentoxide to alkali metal pyrosulphate being 1:20 to 3:10. Specified carriers are aluminium phosphate, silicates, silicic acid, especially silica gel, which is preferred, and active carbon.  The preferred silica gel has a grain size of 20 to 300 microns, an internal surface of 300 to 360 sq. metres per gram and a mean pore radius of 50 to 80<\>rA. With active carbon of grain size 20 to 600 microns the temperature should not exceed 300 DEG  to 340 DEG C. Preferably, in the preparation of the catalyst, a mixture of sodium and potassium pyrosulphates, containing 10 to 50% by weight of the sodium compound is used.  Vanadium compounds may be used which are convertible to the pentoxide under the reaction conditions e.g. the trichloride, tri- and tetra-oxide and sulphate. Preferably the melt contains 10 to 20% by weight of vanadium pentoxide. Activators which aid in the oxidation of hydrogen chloride to chlorine are advantageously used in quantities of up to 5% by weight of the melt. Indicated activators are compounds, especially oxides, of iron, nickel and cobalt and particularly of cerium, copper and manganese. Phosphoric acid, molybdenium trioxide and/or tungsten trioxide may also be present or formed in situ. Silver oxide may be present. Advantageously sulphur trioxide is present. The sulphur trioxide may be generated in situ e.g. from thiophene or carbon disulphide. Preferably 25 to 50% by weight of melt is used in the catalyst. The preferred temperature is 270 to 350 DEG C. A residence time of 8 to 30 seconds is preferred.  Indicated chlorine compounds are hydrogen chloride, ammonium chloride, nitrosyl chloride, thionyl chloride, alkyl chlorides, aryl chlorides, aralkyl chlorides and carboxylic acid chlorides of fatty acids or of aryl mono- or dicarboxylic acids or aralkyl-carboxylic acids, preferred being o-xylyl chloride, o-xylylene dichloride or o-xylylidene dichloride. Pressures of up to 25 atmospheres may be used.  Chlorine may be introduced in an inert gas e.g. nitrogen. Examples are provided.  Specifications 906,311, 908,823 and 941,293 are referred to.
Patent GB-203065-A (GB)
Title: Improvements in and relating to reduction gears
IPC: B64D35/00
Filed: 1922-06-06
Abstract: 203,065. Briggs, J. C. June 6, 1922. Toothed gearing.-In toothed reducing-gearing for use on aircraft &c., a driving-shaft c carries a toothed wheel a gearing with an internally toothed annulus j integral with or secured to the driven or propeller shaft l. The shaft c is carried in roller bearings d in a support g formed on a crank or other casing h, which carries the annulus j by means of a Michell rocking-block bearing k, the blocks of which may be separately adjusted to obtain correct meshing. A roller bearing o and thrust bearing p support the driven shaft l in an extension q integral with or secured to the casing h. The thrust-bearing may be replaced by thrust bearings on one or both sides of the bearing k.