baber/WOPTO huggingface dataset:
Patent GB-294950-A (GB)
Title: Improvements relating to poppet valve driving gear for locomotives
IPC: F01B25/08
Filed: 1927-04-27
Abstract: 294,950. Lindars, H. April 27, 1927. Railway locomotives, steam.-A pin a<1> on a return crank a detachablv secured to the main crank b of a locomotive engine is arranged coaxially with the driving-wheel shaft carrying the crank. A toothed wheel c fixed on the pin a' drives a wheel d on a shaft e connected to the valveoperating shaft f by an intermediate shaft g provided with universal couplings at each end. The casing carrying the gears c, d is anchored against torque by a lever j. The shaft f rotates through bevel gearing a transverse cam shaft controlled from the cab. In a modification, the casing carries a lug adapted to slide in a vertical guide. The weight of the parts may be taken by springs.
Patent GB-593442-A (GB)
Title: Foldable or collapsible oars, paddles, booms, spars or the like
IPC: B63H16/04
Filed: 1945-05-04
Abstract: 593,442. Scaffolding posts. COLLAR, F. May 4, 1945, No. 11323. [Class 20(i)] [Also in Group XXXIV] A foldable post of wood, metal or plastic, is formed in two parts 12 and 13 con-' nected by a single hinge leaf 21 and either held rigidly in axial alignment or folded in either direction as in Fig. 4. When erected the hinge leaf 21 lies in longitudinal recesses 26 and 27 in cut-out faces of the ferrules 14 and 15, thus the peripheral surfaces are flush with one another to enable a light alloy sleeve 30 to be slid over the joint. When folded the hinge leaf 21 lies in recess 28 or 29 in the diametral face of the cut-out ferrule according to which way the post is folded.
Patent GB-1174807-A (GB)
Title: Assembly Drum for the Production and Shaping of Tyre Carcases
Inventor: THALHEIM GOTTHARD
IPC: B29D30/24
Filed: 1967-03-10
Abstract: 1,174,807. Tyre building drums. ERSTE MASCHINENFABRIK KARL-MARX-STADT VEB. 10 March, 1967, No. 11325/67. Heading B7C. A tyre building and shaping drum has a building surface formed by overlapping flexible plates 14 connected with segments 10 radially movable on axially displaceable end plates 8, 9 which may be locked in an extreme adjacent position by engagement of pawls 22 with catches 24. In use, the segments 10 are moved radially outwardly by toggle pairs 12 on rotation of a screw shaft 3 so as to move sleeves 4, 5 threaded thereon away from one another until link discs 6, 7 are locked to end plates 8, 9 by engagement of the pawls 22 with the axially inner corners of sleeves 4, 5. The shaft 3 is rotated in the opposite Direction to advance the end plates towards one another, thereby bowing out the plates 14, until the pawls 22 lock with spring-loaded catches 24 pivoted on axiallydisplaceable discs 28, 29. Belts 26 on the catches 24 then disengage the pawls from the sleeves 4, 5, thereby allowing the segments 10 to contract, and further axial advancement causes abutment of cams 25 with sleeves 4, 5 to disengage the catches 24 from pawls 22. Reverse rotation of the shaft 3 then returns the components to their initial disposition. Adjustable spindles 19 and set-screws 20 respectively determine the maximum and minimum relative spacing of adjacent plates 8, 9 and discs 6, 7. In a modification (Fig. 3, not shown), the pawls 22 are mounted on the discs 6, 7 and lock the latter with the end plates by coaction with catches (31) on the end plates.
Patent GB-113559-A (GB)
IPC: F16K5/02
Abstract: 113,559. Platt, F. J., and Smith, T. G. June 11, 1917. Seats. - A plug-cock particularly . applicable for controlling the flow of petrol has lead packing arranged in annular or part-annular grooves a, b above and below the port and in longitudinal grooves f connecting the annular ones. The packing in both annular and longitudinal grooves is tightened by means of radial set-screws or plungers g arranged to press directly on the packing. Additional packing in the form of pellets may be introduced beneath the set-screws or plungers, which may be simultaneously adjusted by drawing together semi-circular bands. In a modification, the packing is supported in grooves formed in the plug and is adjusted by axially arranged set-screws. Specification 111,244 is re. ferred to.
Patent GB-709730-A (GB)
Title: Process for smelting metal ores and furnace therefor
IPC: C21C1/00
Filed: 1951-05-15
Abstract: 709,730. Smelting furnaces. DOAT, R. May 15, 1951 [June 1, 1950], No. 11377/51. Classes 51 (1) and 51 (2) A method for the continuous smelting of metallic charges in a cupola furnace is characterized by the steps of cooling the vertical wall of the furnace by spraying a cooling liquid against the outside of the wall at a position at or near the top portion of the wall, introducing a heated oxygen-containing gas through tuyeres into the said furnace, cooling the tuyeres and withdrawing continuously molten metal and slag from the smelting chamber, and separating the molten metal from the slag outside the smelting chamber. In the furnace shown, a charge of ore and coke is introduced into the chamber 18, heated air being supplied through the pipe 24, circular pipe 22 and tuyeres 20. Simultaneously water is supplied to the circular pipe 12 and its perforations 14 through pipe 16 and allowed to flow down the outside of the furnace wall 10 to collect in the trough 36 from which it is drained via tube 40. The molten metal and slag are separated outside the chamber 18, the metal collecting in chamber 20 and the slag in chamber 32 and being withdrawn therefrom by removing wall portions 30, 34, respectively. As shown in Fig. 6, the tuyeres are water cooled, the water entering a jacket around each tuyere through a pipe 42 and leaving through an opening 46.
Patent GB-849948-A (GB)
Title: Improvements in or relating to the production of fermented meat products
IPC: A23L13/40
Filed: 1958-04-10
Abstract: In the production of meat products such as cervelat sausage, summer sausage, thuringer, park roll and Lebanon Cologna, wherein the meat is fermented with a culture of Pediococcus cerevisiae, Streptococcus lactis or a Lactobacillus, there is incorporated 0,5-4%, based on the amount of culture, of manganese ion, added, for example, as the chloride, sulphate, phosphate, acetate or borate of manganese or as a salt complex yielding the manganese ion.
Patent GB-1464706-A (GB)
Title: Coumarin compounds
IPC: C07F9/6571
Filed: 1975-03-19
Abstract: Aldehyde derivatives of the formula VII - the definition of the symbols is to be taken from Patent Claim 1 - are obtained by reaction of corresponding coumarin compounds which are unsubstituted in the 3-position with a Vilsmeier reagent which is obtained from a substituted formamide of the formula <IMAGE> and an acid halide, e.g. POCl3, SOCl2, COCl2; Vilsmeier reagents of the formula <IMAGE> are preferred. From the products obtained, other aldehyde derivatives can be obtained by reaction with aldehyde reagents such as hydroxylamine, amines or hydrazine derivatives, or the free aldehyde itself, which is likewise accessible for the further reactions mentioned, can be obtained by hydrolysis. The compounds prepared are primarily useful as dyestuffs. <IMAGE>
Patent GB-841889-A (GB)
Title: Blend of polymeric products
IPC: C08L27/06
Filed: 1957-04-08
Abstract: Compositions comprise polyvinyl chloride in admixture with the polymeric product produced by the interaction, under polymerising conditions, of a conjugated diolefin polymer latex or of a diolefin-vinyl aromatic copolymer latex with a mixture of acrylonitrile and a vinyl aromatic hydrocarbon, the notched Izod impact value of the composition being higher than that of the polyvinyl chloride.  The preferred vinyl aromatic hydrocarbon is styrene, and the preferred diolefinvinyl aromatic copolymer is a butadiene-styrene copolymer.  The interaction may be effected in the presence of catalysts, e.g. cumene hydroperoxide, dextrose and ferrous sulphate, emulsifiers, e.g. sodium salt of condensed alkyl naphthalene sulphonates, modifiers, e.g. tertiary alkyl mercaptans, and sodium phosphate buffers.  The compositions may also contain stabilisers such as fatty acid monoglycerides, cadmium stearate, dibutyl tin dilaurate, di-t-butyl p-cresol, 2,21-methylene-bis (4-methyl 6-t-butyl cresol), and heptylated diphenylamine.
Patent GB-703435-A (GB)
Title: Improvements in or relating to fluorinated acrylates and polymers thereof
IPC: C08F20/24
Filed: 1951-05-17
Abstract: The invention comprises polymers of 1, 1-dihydroperfluoroacrylates of formula CH2: CHCOOCH2CnF2n + 1 where n is 3-9. Polymerisation of the monomer may be effected with catalysts such as benzyl peroxides or potassium persulphate the latter being used in aqueous emulsion polymerization.  The polymers may be plasticized with alkyl esters of fluorocarbon acids and 1, 1-dihydroperfluoroalkyl alcohols c.f. Specification 703,434, and their esters.  Mixtures of the monomers may be polymerized. Heteropolymers are obtained by copolymerizing the above acrylates with polymerizable monomers such as styrene, acrylonitrile, butadiene, isoprene and fluorocarbon vinyl esters. Compounding agents, e.g., carbon black and zinc oxide may be present. In examples (1) 1, 1-dihydroheptafluorobutyl and (2) 1, 1-dihydroundecafluorohexyl acrylates are polymerized in the presence of benzyl peroxide.ALSO:The invention comprises 1, 1-dihydroperfluoroacrylates of formula CH2 : CH COO CH2 Cn F2 n + 1 where n is 3 to 9.  The normal acrylates in which n is 3 to 9 are specified. They are preferably made by reacting the acid chloride of acrylic acid with the desired fluorinated alcohol in the presence of barium chloride.  In Examples (1) 1, 1-dihydroheptafluorobutyl alcohol and (2) 1, 1-dihydroundecafluorohexyl alcohol are treated with acrylyl chloride in the presence of barium chloride and hydroquinone to yield the corresponding ester.  The alcohols used as starting materials may be made by reduction of the corresponding acid or acid chloride with lithium aluminium hydride or by the catalytic hydrogenation of an alkyl ester of the acid using a copper chromium oxide catalyst at elevated temperature and high pressure as in Specification 703,434.
Patent GB-450117-A (GB)
Title: A new or improved process of preparing a soluble food extract from brewers' yeast
IPC: A23J1/18
Filed: 1935-04-15
Abstract: A soluble food extract is produced from brewer's yeast by separating and filtering liquefied and digested yeast extract produced by peptonization of the yeast, adding a colloid adsorbing agent to remove bitter and other undesirable flavours and subjecting to the combined action of centrifugal separation and filtration to remove the residual colloid adsorbing agent.  As described, the yeast is first liquefied by agitation in a mixing machine, e.g. at 65 DEG  C., with addition of a small amount of common salt.  It is then digested at the same temperature for a lengthy period, e.g. 72 hours, and diluted and separated in a centrifuge, from which the clear liquid and the insoluble sediments are removed separately by two collectors constructed as described in Specification 450,131, [Group II].  The extract is next fittered in a centrifugal filter constructed as described in Specification 450,130, [Group II], the filter member preferably consisting of a layer of pulp with an adsorptive constituent, e.g. 90 per cent of cellulose with 10 per cent of asbestos.  The clear liquid passes to a forced circulation evaporator, after which it is brought to and maintained for a period, e.g. one hour, at about 70 DEG  C. during a portion of which time activated carbon is added up to 0,75-1 per cent by volume with vigorous stirring.  The bulk of the activated carbon is then removed in the plain centrifuge and the residue by subsequent filtration in the centrifugal filter which is speeded up and the filter of which may consist of a 2-inch layer of a pulp containing 60-80 per cent of cellulose and 40-20 per cent of asbestos.  The extract is concentrated under vacuum to a thick paste which is redissolved in hot water and heated up to about 97,8 DEG  C. to destroy proteolytic enzymes and complete the separation of insoluble phosphates, some coagulation of protein matter also occurring which encloses and removes the last traces of colloidal carbon.  The heated liquid is then recentrifuged in the plain centrifuge and evaporated in a forced circulation evaporator to obtain the final pure extract.
Patent GB-1059996-A (GB)
Title: Means for mounting window units in window apertures
Inventor: CARTER PERCIVAL RAVENSCROFT
IPC: E06B1/60
Filed: 1964-03-19
Abstract: 1,059,996. Vehicle window frame mounting. HALLAM, SLEIGH & CHESTON Ltd. June 14, 1965 [March 19, 1964], No. 11590/64. Heading E1J. A window frame of extruded section metal for mounting on a flange 1 defining a window aperture has at one lateral side an outwardly extending flange 5 located at one side of the flange 1 and at the other side of the flange 1 a laterally extending base part provided on its outer peripheral surface with an undercut groove 9 into which a plurality of hard plastics retaining members 13 at a number of points around the frame are locked by a cotter or key 16 received in confronting recesses 12, 15 in the frame 11 and retainer 13 respectively, so that the base of the retainer presses laterally upon a rubber &c. weather strip 6 straddling the flange 1. As an alternative to the key 16, which may be omitted, the retainer 13 is provided with integral projecting parts adapted to be sprung into the undercut groove or the retainer may have a solid undercut dove-tail portion which is sprung into the correspondingly shaped undercut groove.
Patent GB-1390461-A (GB)
Title: Bevel gears and differentials
IPC: F16H48/20
Filed: 1972-03-13
Abstract: 1390461 Differential gear; toothed gearing T M McCAW 13 March 1972 [12 April 1971] 11599/72 Headings F2D and F2Q Relates to a tooth profile of bevel gears in a bevel differential of the variable-leverage type (e.g. as described in UK Specifications 550,457 and 452,294), which is one in which, during differentiation, the points 60, 62 of contact between the pinions 41 and the respective sidegears 26, 27, are caused to travel cyclically from top to bottom of the teeth along the length of the teeth in opposite directions on opposite sides of the pinion axis, whereby the torqueproportioning between the pinions and side-gears is also varied. In the event of one side slipping, such variation produces positive and negative accelerations of the slipping wheel, resisted by its inertia, which thereby produces a reaction to maintain a degree of drive on the non-slipping wheel, to obtain a limited slip characteristic. In this Specification the travelling tooth contact is produced by modifying bevel tooth profiles, two embodiments being disclosed. In Fig. 2 the apex 44 of the pitch generating cone 58 of a bevel pinion 41 is spaced from the apices 55, coincident in Fig. 2, of the face and root cones 66, 67, on the axis of the pinion, the sidegear being similar. The pitch cone apex 44 is in this case at the centre of the differential gear. At the apex end the teeth are mainly addenda 65, whilst at the opposite end they are mainly dedenda 64, resulting in increased strength. In Fig. 4, which also includes a friction disc coupling 102 loaded by tooth pressure with or without springs to assist in limiting slip, the teeth are formed by two portions 47, 48 along their length, the first portion 47, from toe to mid length, having a face cone apex coincident with the generated pitch cone apex 44 which may, as shown, lie at the differential centre or on either side thereof. The face cone apex 55 of the second portion 48, mid length to heel, is spaced beyond the apex 44. The resulting teeth have an addendum taper which increases from toe to mid length and thereafter changes to constant or decreasing taper. The resulting lines 91, 92 of tooth contact lie on opposite sides of the mid length on respectively diametrically opposite sides of the pinion, thus producing the variable leverage effect. The roots of the teeth are milled by a circular cutter to envelop the faces of the meshing teeth. The pinions of the differential have an odd number of teeth and the side-gears a number divisible by four for four pinions or by two or four for two pinions. The Specification includes claims to single bevel pinions having tooth structure as above described.
Patent GB-1396883-A (GB)
Title: Work cabinets
IPC: A61G13/00
Filed: 1971-04-27
Abstract: 1396883 Clean air work cabinets HEPAIRE FILTRATION Ltd 27 April 1972 [27 April 1971] 11644/71 Headings F4X and F4V A clean air work cabinet comprises a chamber 12 having an open face 11 for access thereto, a high efficiency filter 19, a fan 17 for recirculating air through the chamber 12 via the filter 17 and a perforate base 13, and an outlet from the cabinet upstream of the filter 19, whereby air is drawn into the chamber 12 through the opening 11. The outlet includes a high efficiency filter 20 or a choke and may be connected to a duct 35 leading to the exterior atmosphere. The base 13 includes an imperforate portion 21 and is removable, as is a pre-filter 16. The face 11 may be closed by a cover 37 to permit a sterilizing gas to be circulated within the cabinet. Fluorescent tubes 36 are provided in chamber 12.
Patent GB-910820-A (GB)
Title: Improvements in or relating to reinforcement of rubber articles
IPC: B60C9/00
Filed: 1959-04-07
Abstract: Rubber articles such as tyres, hose, belts and gaskets are reinforced by polypyrrolidone elements, especially monofilaments, yarns, cords and fabrics of oriented, melt-extruded polypyrrolidone.  The polypyrrolidone is made by the alkali-catalysed polymerization of pure pyrrolidone or an alkali metal salt thereof under anhydrous conditions in the presence of an activator such as acetyl pyrrolidone, adipoyl dipyrrolidone, acetyl chloride, phenyl isocyanate, phenylcarbamyl pyrrolidone or stearoyl pyrrolidone, and is preferably treated with a lower aliphatic acid aqueous solution to remove low mol. wt. polymers and remaining alkali.  Greater adhesion to rubber is attained by preliminary treatment of the polypyrrolidone elements with a primer, e.g. a solution of ABR or of ABR with resorcinol-formaldehyde resin or a polyvinylpyridine latex with resorcinol-formaldehyde resin.
Patent GB-564675-A (GB)
Title: Improvements in or relating to methods of and apparatus for making articles resembling knitted articles
IPC: D04B1/06
Filed: 1943-07-20
Abstract: 564,675. Ladderproof fabrics ; embroidering. HORLER, E. July 20, 1943, No. 11789. Convention date, July 20, 1942. [Class 112] Stockings or other articles comprising a ladderproof fabric resembling knitted fabric is produced upon an embroidery machine by replacing the base fabric normally secured to the frame by a wire or string grating which can readily be separated from the embroidered article. Wires or strings 10<1>, 1011 crossing each other diagonally may be fixed each at one end to the upper and lower bars 9<1>, 9<11> of the frame and removably secured at the other end to the opposing bars 9<11>, 9<1>. The fabric may, as shown in Fig. 1, comprise loops 1 each of which is interlaced with the two adjacent loops in its horizontal row and with loops in the previous and succeedings rows, or each of the loops of alternate rows may interlace with the adjacent loops, the loops of the intermediate rows resembling more closely the ordinary knitted loop. Alternatively, the loops in some of the rows may be twisted, or in some rows loops may be formed by merely crossing the thread. In yet another modification, the thread of each loop in a row is twisted through the corresponding loop of the previous row. Specification 564,413 is referred to.
Patent GB-508736-A (GB)
Title: Improvements in and relating to the manufacture of cement
IPC: C04B7/21
Filed: 1938-04-19
Abstract: 508,736. Cement; calcium sulphate. SOC. ANON. DES CIMENTS DE THIEU, and BLONDIAU, L. April 19, 1938, No. 11790. Convention date, April 17, 1937. Addition to 437,855. [Class 22] [Also in Group III] Cement containing calcium sulphate is obtained by mixing or grinding the constituents of the cement with gypsum which has been calcined in a slightly reducing atmosphere at 900-1200‹ C. Rock gypsum may be calcined in the presence of 0. 5-1 per cent of coal, or calcination be effected in a rotary kiln in a flame containing 0.5 per cent of pulverized coal, or a carbon monoxide flame may be used. A short period of calcination, say 5-15 minutes, is preferred as decomposition of the sulphate is thereby avoided. The invention is particularly applicable in the production of blast furnace slag cements rich in calcium sulphate but may also be used in the production of Portland cements containing only small quantities of sulphate.
Patent GB-118016-A (GB)
IPC: D03D51/34
Abstract: 118,016. Wade, H., (Hopedale Manufacturing Co.). Oct. 26, 1917. Weft-replenishing mechanism.-In weft-feeler mechanism of the kind comprising a weft-engaging member adapted to be reciprocated yieldingly towards and away from the breast beam and movable longitudinally of the bobbin on predetermined exhaustion of the weft, the feeler is mounted to turn on a fixed pivot pin, and means are provided to operate before such predetermined exhaustion to permit the turning of the feeler. As shown, a weft-engaging member 23 with a toothed end 24 is slidably mounted on a lever 22 and is adapted to be moved forwards against the action of a spring 29 by the weft on the bobbin 28 in the shuttle as the lay 9 advances, the forward movement being limited by a stop-pin 31. The lever 22 is pivoted on a pin 32 on a plate secured adjustably to a support 34 bolted to a bracket 36 on the breast beam 11. The lever 22 is connected by a rod 47 and an adjustable screw 48 to a latch lever 21 pivoted at 42 to an actuator 18, which is pivoted to an arm 16 on the rock-shaft 15 that initiates weft-replenishment, and the latch lever is acted upon by a compression spring 43, which tends to move its forked rear end 44 and the rear end of the lever 22 to the left. A controller 20 is slidably mounted in lugs 50, 51 on the support 34 and has adjustably secured to it a hub 53 with a stop-lug 58, which co-operates with an arm 59 on the lever 22 normally to hold the lever from turning under the action of the spring 43, a strong spring 52 holding the controller in its rearmost position. As the lay advances, the bobbin-holding spring 57 presses forwards the controller 20 and removes the lug 58 from the lever 59, but, so long as there is weft on the bobbin, the end 24 of the member 23 is engaged thereby and prevented from moving to the left along the bobbin. When, however, the weft is substantially exhausted, this movement takes place, the end 24 moving to the left along, and in contact with, the denuded surface of the bobbin until stopped by the remaining windings of weft, and, when the exhaustion reaches the predetermined extent, the end 44 of the latch lever 21 is engaged by the weft hammer 25 and the shaft 15 is rocked. Before the weft is exhausted, the weft hammer in its forward movement acts on a cam-surface 46 on the latch lever to free this lever and the feeler lever 22 from the influence of the spring 43 after this has acted a short time on these levers. The feeler mechanism may be applied to plain looms for stop-motion purposes.