baber/WOPTO huggingface dataset:
Patent GB-560105-A (GB)
Title: An extrusion-moulding machine
IPC: B28B3/24
Filed: 1942-07-16
Abstract: 560,105. Hopper-and-plunger moulding machines; concrete compositions. REEDMAN, H. July 16, 1942, No. 6312/41. [Classes 22 and 87 (ii)] The base 16 and sides 17 of the rearward end of the chamber 4 which receives concrete from the hopper 1 are flexible, e.g. of rubber, and are connected to the reciprocating ram 5. The arrangement is preferably such that when the ram is in its forward (charging) position, the base and sides are not under tension, and when the ram recedes to the left, the said parts are tensioned. Alternatively, the base and sides may be unstretched when the ram is in the middle of its stroke. To allow for the varying thickness of the base and sides, a tapering bottom plate 18 and tapering side plates 19 are secured either to the base 16 and sides 17 respectively or to the ram, whereby the internal dimensions of the chamber 4 remain constant. Hollow or solid cores 21, integral with or removably connected to the base plate 22, extend through the ram and through the chamber 4 to form hollow articles. The cores may be connected to and move with the ram, or may be independently actuated as from a rotating crank. The lower part 9 of the hopper is flexible, e.g. of armoured rubber sheeting, and is secured to the ram. The ram is connected to its operating crank 7 by links 6 positioned between the cores. Reinforcement 23, 24 passes from rolls 10, 11 around jockey pulleys 12, 13, through slots 14, 15 in the ram into the chamber 4. The extruded material may be wholly or partly severed at intervals by knives 26 on rollers 25 rotating in synchronism with rollers 27 carrying knives which score the (metal, glass, hessian) reinforcement. When the knives 26 do not completely sever the moulded material, severance may be completed by a manually-operated knife. The knives 26 may be cam-operated to move parallel with the axes of their rollers, and may be serrated, so that a sawing action is obtained. The rollers may be rotated intermittently and may be stationary whilst the knives are reciprocated. A suitable concrete mix comprises (parts by volume) 1 of Portland cement, 2 of fine washed sand and 4 of slag or granite to pass 3/16" ring, with 7 per cent water by weight.
Patent GB-1149334-A (GB)
Title: Framework for a crawler vehicle
IPC: B62D55/084
Filed: 1968-02-08
Abstract: 1,149,334. Endless-track vehicles. MASSEYFERGUSON SERVICES N.V. 8 Feb., 1968 [28 Feb., 1967], No. 6314/68. Heading B7H. In a framework for a endless-track vehicle having track frames 2 pivotally connected at one end to a main frame about a transverse axis, a transverse member 4 which is connected at its mid-point to the main frame by a pivot 18 and is rigidly connected to the other end of each track frame 2 has its angular movement relative to the main frame resisted by high rate springs and limited by positive stops. At two points on the transverse member 4 spaced equidistant from the pivot 18 there are provided high rate springs each in the form of a pair of Belleville washers 27 located on a pin 26 for engagement with a tube 26a depending from the main frame. When a spring has compressed by an amount corresponding to not more than one per cent of the track width under an impact load of not less than three times the vehicle weight, the associated pin 26 abuts the main frame to positively prevent further angular movement of the transverse member 4. The main frame comprises a base structure 8 for supporting the vehicle transmission, a frame portion 9 extending forwardly therefrom for supporting the engine 5, and a cross-member 13 carrying the pivot 18. A bucket support structure 7 is supported both on the base structure 8 and directly on the transverse member 4 by legs 42.
Patent GB-510199-A (GB)
Title: A process for the manufacture and production of improved cellulosic textile materials
IPC: D06M15/423
Filed: 1938-02-28
Abstract: 510,199. Treating artificial textile materials with liquids; dyeing processes ; cellulose derivatives. COURTAULDS, Ltd., and BOULTON, J. Feb. 28, 1938, No. 6328. [Classes 2 (ii) and 15 (ii)] Textile materials of or containing regenerated cellulose are impregnated with a solution containing at least 6 per cent. of formaldehyde, an acid catalyst, and not more than 2 per cent. of urea or thiourea, and the impregnated materials are then heated to a temperature below 150‹C. but preferably between 100‹ and 150‹C. The presence of urea or thiourea prevents the cellulose from being tendered by the acid catalyst. The catalyst may be a mineral or organic acid which may be partially neutralized, or an acid-producing substance. The materials may be impregnated by pad-mangling or immersion until thoroughly wetted. Prolonged steeping is excluded. In an example, a viscose rayon woven fabric is wet out with a solution containing formaldehyde, thiourea, potassium tetroxalate, and water. The fabric is removed from the solution, squeezed, and hydroextracted. It is then either dried below 100‹C. for a short time and then heated to 140-150‹C. or run directly into a hot air chamber at 140-150‹C. The fabric is then washed in soap solution. The materials treated by the process have high resistance to creasing, and show lower water inhibition. They are insoluble in cuprammonium hydroxide solution, and show practically no shrinkage on washing. They are rendered resistant to direct dyes. Dyeing should therefore be effected before the formaldehyde treatment. When this is done the dyeings exhibit a superior fastness to washing. The tendency of regenerated cellulose fibres, yarns or fabrics, which have been dyed with vat dyes, to become degraded on exposure to light is greatly inhibited when they have been subjected to the formaldehyde treatment described.
Patent GB-416399-A (GB)
Title: Improved transportable pumping apparatus
IPC: B60P3/30
Filed: 1934-02-27
Abstract: 416,399. Hand trucks. PEPPER, H. T. C., Salvington Letts, Worthing, Sussex. Feb. 27,1934, No. 6366. [Class 108 (i).] A hand truck for a portable pumping set comprises a frame 1 mounted on wheels 3 about which it may be tilted, a front central castor 4 and handles 5. The frame 1 supports a bed frame 10 having mounted thereon an electric motor 8 and a pump 9 driven from the motor by a flexible drive 2. The pump is provided with a connector 13 for a hose &c. and a reel 6 is provided for the leads 7 of the motor. A cover frame comprising hoops 16 and a cover 14 is provided for the motor.
Patent GB-564940-A (GB)
Title: Improvements in and relating to metallic stairs
IPC: E04F11/112
Filed: 1943-04-21
Abstract: 564,940. Stairs. BRABY & CO., Ltd., F., FERGUSON, G. H., and PHILLIPS, T. April 21, 1943, No. 6387. [Class 20 (iv)] A metal stair flight unit comprises a pair of side stringers 1 to which are welded a few steps, each formed of a sheet metal plate bent to form a tread 2 and riser 3. The two ends of the metal plate are bent into box sections with horizontal and 'vertical portions 4, 5, one adapted to slide over that on the adjacent plate. The side stringers are staggered longitudinally, and when the units are assembled the adjacent stringers on each side are welded together and the unwelded parts of the steps are welded to the stringers. A tread 10 may be added.
Patent GB-1206017-A (GB)
Title: Asphalt composition
IPC: C08G18/64
Filed: 1968-02-08
Abstract: 1,206,017. Modified asphalt composition. JEFFERSON CHEMICAL CO. Inc. 8 Feb., 1968 [15 Feb., 1967], No. 6397/68. Headings C3N and C3R. A modified asphalt composition comprises the reaction product of (a) unmodified asphalt; (b) a polyol; and (c) a polyaryl isocyanate. The composition contains 0.5-7% wt. (b) and (c), based on wt. of (a). (b) and (c) each have functionality 2-4, the combined functionality of (b) and (c) being 4.2-8. The isocyanato/ hydroxyl ratio is from 0.8 to 1.2. (b) has EW = 500-6000. (a) may contain cut-back agents, emulsifiers, adhesive agents, or other additives. (b) may be polybutadienediol or linear or branched polyether polyols e.g. polyoxyalkylene polyols and their polymers and copolymers, either block or heteric, e.g. propylene oxide adducts of C 2-22  polyhydric alcohols, alkanolamines, primary amines and phenol-formaldehyde condensate. (c) may be 2,4' - diisocyanato - diphenyl methane, 4,4' - diisocyanato diphenylmethane or mixtures or polymers - thereof, or diphenyl diisocyanate, triphenyl diisocyanate, or 4,4',2,2' - tetra isocyanatodiphenyl. Urethane reaction catalysts may optionally be added. The composition is prepared by heating (a) e.g. to 170-350 F., and adding (b) and (c). The reaction is complete when the diameter of threads drawn from the composition reaches a constant maximum value. The composition may be mixed with aggregate in a pug-mill or applied to aggregate in the road bed. U.S.A. Specifications 3,194,773, 3,084,177, 2,939,851 and 2,650,212 are referred to.
Patent GB-1118101-A (GB)
Title: Attachment for use on the driving wheels of tractors, and tractors fitted therewith
IPC: B60B15/26
Filed: 1966-02-14
Abstract: 1,118,101. Tractor wheel attachments. A. W. CLARKE, and J. R. BASEY-FISHER. 6 Feb., 1967 [14 Feb., 1966], No. 6437/66. Heading B7C. An attachment for a tractor wheel comprises a plate 1, to be bolted to the wheel, and lugs 11 fixed to the plate with parts 22 extending beyond the plate periphery. Each lug lies in a plane inclined at an acute angle (e.g. 65 degrees) to the plane of the plate, and also inclined at an acute angle (e.g. 25 degrees) to a radius of the plate passing through the point of intersection of said lug plane with the plate periphery. Both angles are measured in the same circumferential direction about the plate axis, this being opposite to the intended direction of rotation of the plate when on the tractor. The attachment is designed for a particular wheel so that the lugs do not project beyond the tyre, but further extension pieces may be bolted to the lugs to increase their projection.
Patent GB-161050-A (GB)
Title: Improvements in reparable loom-pickers
IPC: D03D49/36
Filed: 1920-03-03
Abstract: 161,050. Tolhausen, A. March 3, 1920. Pickers. - A metal picker body, Fig. 2, is adapted to receive replaceable wearing-parts. A shuttle plug b, Fig. 5, of balata &c., is horseshoe-shaped at one end to fit into a corresponding recess in the picker body, but projects beyond the body, where it may be encased in a ferrule &c. A V-groove may be formed in the face of the plug b to centre the tip of the shuttle. A fibre tube a driven into the spindle bore forms a bearing for the spindle. The picker leg e, of fibre or metal tubing, is driven through holes in the picker body, shuttle plug, and fibre bush to hold them securely, and a pin f is bent over to secure the leg e in position. There may sometimes be two plugs b, and the plug and fastening arrangements may be applied to pickers of spindleless looms.
Patent GB-384324-A (GB)
Title: Improvements in color photography and kinematography
IPC: G03B33/00
Filed: 1931-03-03
Abstract: 384,324. Colour photography and kinematography. THORNTON, J. E., 8, Hill Street, Jersey, Channel Islands. March 3, 1931, No. 6538. Drawings to Specification. [Classes 97 (i) and 98 (ii).] In a process for producing four photographic or kinematographic colour separation negatives of the same subject at a single exposure, four image areas on four separate supports superimposed in pairs or on two superimposed supports each having two image areas are exposed behind a light-splitting optical system which produces two identical side-by-side images. The areas of the sensitive material mav be differently sensitized and/or exposed behind differently coloured filters and the sensitive material described in Specification 384,336 may be used. In an example the front emulsion is sensitized for blue and green or is orthochromatic and is provided with a pink and a yellow filter and the rear emulsion is sensitized for yellow and red or is panchromatic and is provided with a green and a violet filter. The sensitive material may be in the form of glass plates, cut films, roll films or film-packs or may be carried by two double-width or four single-width films for kinematography. The optical system comprises a partially reflecting mirror or prism and a totally reflecting mirror or prism mounted in front of a pair of similar objectives or a single objective may be used, the light-dividing system being behind the objective and a compensating block of glass being inserted in the path of the longer light beam. Specifications 224,569, 224,570, 224,573, 230,965, 246,266, 285,228, 316,338, [all in Class 98 (ii), Photographic processes &c.], and 363,000 are referred to.
Patent GB-1283141-A (GB)
Title: Method of hardsoldering or brazing
Inventor: LOQVIST K
IPC: B23K35/30
Filed: 1970-02-12
Abstract: 1283141 Soldering or brazing FAGERSTA BRUKS AB 12 Feb 1970 [14 Feb 1969] 6721/70 Heading B3R A method of hard soldering or brazing two members having different coefficients of thermal expansion, e.g. metal carbide and steel, comprises carrying out the soldering operation by heating successively from one end of the junction to the other and 'subjecting the member having the higher coefficient to controlled cooling during the soldering operation so that on final cooling of the work no residual stress or strain is left in the soldered joint. In the soldering of a ring 4 of hard carbide material to a body 5 of hardened steel, the latter is clamped between copper members 6 through which cooling water flows during the soldering operation. Solder is deposited in the regions 8, there being direct contact at 9 between the ring 4 and member 5. In an alternative embodiment, a rod of carbide material is soldered to an elongate steel rail. Reference is made to the use of silver solder and copper solder.
Patent GB-981199-A (GB)
Title: Improvements in and relating to lactone polymers
Inventor: COX EUGENE FLOYD
IPC: C08G63/82
Filed: 1962-02-21
Abstract: Polyesters are made by polymerizing a lactone having 6-18 members in the ring in the presence of a catalytic amount of (a) an aluminium alkoxide;  (b) a compound of formula MA where M is a Group Ia metal and R is a hydrocarbyloxy radical or a radical of formula -NR2 where R is hydrogen or an amino radical;  (c) a hydride of lithium, potassium, sodium, rubidium, caesium, calcium, strontium or barium; (d) a compound of formula ABH4 where A is a Group Ia metal and B is a Group IIIb metal; or (e) a Group Ia metal, the polymerization being effected in the essential absence of a compound containing a reactive hydrogen atom.  The lactones have the formula <FORM:0981199/C3/1> where each R is hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, halo, haloalkyl, alkoxyalkyl, alkoxy or aryloxy; A is an oxy, thio or divalent saturated aliphatic hydrocarbon group; x and y are 1-15; and z is zero or one; with the provisos that (a) x + y + z cannot be 2 or 3; (b) the total number of atoms forming the lactone ring cannot exceed 18; (c) the total number of organic substituents attached to the carbon atoms in the lactone ring cannot exceed four; (d) from 2 to 4 continuously linked carbon atoms in the lactone ring can represent a portion of a saturated cycloaliphatic hydrocarbon nucleus containing 4-10 carbon atoms; and (e) the four R variable attached to any two adjacent carbon atoms contained in the lactone ring can represent a portion of an aromatic hydrocarbon nucleus which is fused to the lactone ring. Polymerization is effected at -20 DEG  to 250 DEG  C., possibly in the presence of an inert organic liquid or a mixture of two such immiscible liquids.  A batch or continuous process may be used. The product may be freed of catalyst residue by extraction with a mineral acid.  The products vary from liquids to tough solids. Examples describe the polymerization of delta-valerolactone, beta-methyl - delta - valerolactone, epsilon - caprolactone, isomeric methyl-epsilon-caprolactones, isomeric octyl - epsilon - cuprolactones, zeta-enantholactone, 3 - oxa - 6 - hydroxy - hexanoic acid lactone, 2-keto-1:4-dioxane, or a mixture of epsilon-caprolactone and beta-methyl-delta-valerolactone, mixed isomeric dimethyl-epsilon caprolactones of 2:4 - dimethyl - 4 - methoxymethyl methyl - 5 - hydroxypentanoic acid lactone. Uses.-In cometics, polishers, waxes and lubricants, sizes, anti-static agents, protective coatings, impregnants, adhesives, plasticizers for vinyl resins, moulded articles.
Patent GB-419850-A (GB)
Title: Stopper for bottles and like receptacles
IPC: B65D45/02
Filed: 1934-03-02
Abstract: 419,850. Stoppers for bottles. DONADON, G., CARDINO, M., and BERIO, A., 36, Via XX Settembre, Genoa, Italy. March 2, 1934, No. 6772. Convention date, Oct. 27, 1933. [Class 125 (iii).] A stopper for bottles &c. comprises an elastic ball 4 carried on resilient arms 3 which are secured to the neck of the bottle by a sleeve 2. The sleeve may be integral with the arms 3 and long enough to hold in position by friction. Alternatively a ring may be provided which engages a projection on the bottle neck. The arms 3 may be springs and the ball 4 may have a diametrical hole through which a connection passes for the ends of the arms.
Patent GB-795733-A (GB)
Title: Improvements in article feeding mechanisms
Inventor: LEWIS-SMITH CHARLES PETER
IPC: B65G47/82
Filed: 1955-03-08
Abstract: 795,733. Conveyers. BAKER PERKINS, Ltd. June 1, 1956 [March 8, 1955], No. 6835/55. Class 78 (1). A vertically movable platform A, Fig. 5, is moved from a position in which it receives an article P from an endless conveyer Q to a position in front of a pusher R whenever an article correctly positioned on the platform displaces a spring Cf to effect the coupling of the platform to the vertically reciprocating rod F. The movement of the spring Cf causes a member Cp pivoted to the platform to move into the path of the rod F. A spring Cs returns the spring Cf to the position shown. In another construction shown in Fig. 1 the platform A is also the pusher. The platform is supported by a rod B which is pivoted to one end of a bar E. A rod D is pivoted to the other end of the bar and like the rod B is maintained vertical by guides. The bar is mounted on a vertically reciprocating rod F. When an article is positioned correctly on the platform, the catch C has been pushed by it into the line of travel of the rod D. A spring G prevents movement of the rod B until the catch C has been pushed to the left. When the upward movement of the rod D is stopped by the catch, the rod B and the platform A move upward. The rod F is moved in synchronism with the apparatus to which the articles are being fed. The rod D may be used to open a feed gate, to operate a speed control or to start the feed into a preliminary hopper.
Patent GB-102217-A (GB)
Title: An Improved Compound Steam Engine.
Inventor: DAVEY HENRY
IPC: F01B17/04
Filed: 1916-05-15
Abstract: 102,217. Davey, H. May 15, 1916. Feedwater, heating.- In a compound condensing steam-engine, steam is supplied to a feedwaterheater from the lowpressure cylinder before the end of the power stroke. In the construction shown in Fig. 3, the high-pressure cylinder exhaust valves p serve as admission valves to the low-pressure cylinders. On the pipes q connecting the two cylinders are two valves r which communicate with the feedwaterheater k arranged above the condenser h. A non- return flat valve t is arranged between the valves r and the heater k. The valves r open at about seven-eighths of the strode. The low-pressure exhaust valves s which lead to the condenser open just before the end of the stroke and remain open for about one-eighth of the exhaust stroke when compression begins. In a modification flat slide low-pressure exhaust valves are used.
Patent GB-1466104-A (GB)
Title: Washing-machine door
IPC: D06F39/14
Filed: 1974-02-15
Abstract: 1466104 Washing machines PHILIPS GLOEILAMPENFABRIEKEN NV 15 Feb 1974 [19 Feb 1973] 6965/74 Heading D1A The door 9 of the tub of a top-loading horizontal axis washing machine is provided with a deflector 11 or 25 with a surface 12/14 or 26 facing the drum which defines with the drum a converging passage in the direction of rotation of the drum 2 during spin drying. It has the effect of causing a suction in a passage 22 between the trailing edge of the deflector and the adjacent wall 19 of the loading funnel which draws any liquid from between the unsealed lid 9 and its frame 8. The deflector may have a ridge 17 of varying height on three sides of a flat portion 12 which is hinged at 10 or may be as shown in 3a with apertures 28 for liquid which passes within the unsealed edges 27 of the deflector.
Patent GB-1420069-A (GB)
Title: Liquid level detector
IPC: G01F23/00
Filed: 1972-02-15
Abstract: 1420069 Separating components of a gas mixture BOC INTERNATIONAL Ltd 19 Jan 1973 [15 Feb 1972] 6977/72 Heading F4P [Also in Divisions G1 and G3] Apparatus for separating a helium/oxygen gas mixture comprises a pipe 2 feeding the mixture into a vessel 4 located in a liquid nitrogen reservoir 6, whereby the oxygen is liquefied and drawn off by a pipe 8 at the bottom of vessel 4, and the gaseous helium is drawn off by a pipe 10 at the top of vessel 4. To ensure adequate separation of the gas and liquid, a capillary tube 16 extends vertically in the vessel and leads to a Katharometer 18 which monitors the liquid level by measuring the thermal conductivity of the gas reaching the Katharometer. If this gas is helium, a valve 12 in the oxygen outlet pipe 8 is automatically closed until the meter 18 senses oxygen vapour. In a modification a second capillary tube extends from the upper half of the vessel 4 to the gas analyser to define an upper limit for the helium/oxygen interface.
Patent GB-497086-A (GB)
Title: Multiple carrier-current system for the electrical transmission of intelligence
IPC: H04J1/04
Filed: 1937-03-09
Abstract: 497,086. Multiplex signalling ; valve generating circuits. ALLGEMEINE ELEKTRICITATS-GES. March 9, 1937, No. 6979. Void. Convention date, March 9, 1936. [Class 40 (iv)] [Also in Group XL] In a multiplex carrier-system, each channel comprises two modulators, the first modulators of all the channels using the 'same carrier frequency or, if the inputs to them are carrier signals, such frequencies as will bring all the outputs to the same frequency range, e.g. 20-22À4 kc., and the second modulators using carriers individual to a channel or to a pair of channels using respectively the upper and lower side bands for transmission. The side bands for transmission are selected by simple, preferably tunable, filters. The carrier currents for the second stage modulators may be derived by modulating a single frequency fo by a frequency f to a degree greater than 100 per cent, this operation producing frequencies (fo-mf) .. (fo-f), fo, (fo+f) ..(fo+nf), or by modulating a frequency fo by separately produced frequencies f, 2f &c. or by a strongly distorted frequency f. A similar set of carriers may be obtained by frequency or phase modulation of the frequency fo. Preferably several base frequency generators which may be stabilized by crystals are modulated in one of the ways described above and the derived frequencies can then be at such a distance apart that they are readily separable by simple filters, e.g. single oscillatory circuits in the anode circuit of the output valve. Tables are given showing possible values of base and derived frequencies.