baber/WOPTO huggingface dataset:
Patent GB-655239-A (GB)
Title: Pulsators for milking machines
IPC: A01J5/12
Filed: 1949-05-05
Abstract: 655,239. Pulsators. ECREMEUSES MELOTTE SOC. ANON. May 5, 1949, No. 12039. Convention date, May 5, 1948. [Class 84] Slide valves 20, 21 in a pulsator move in parallel directions under the action of opposed twin diaphragms 36 housed under side covers 37. The valves move on the face of a detachable plate 15 provided with ports and with connecting-grooves 18, 19 on its underside, the valves and plate being preferably moulded in self-lubricating thermoplastic material. Grooves 16, 17, 50a and coacting ports are provided in the face of the pulsator block 1 and an interposed detachable plate 14, which may be of rubber, converts the respective grooves into ducts when the parts are assembled. A port 61, Fig. 10, containing a filter plug, admits air through the underside of the block and this passes through a further filter chamber 70 and needle valve 72 before reaching the control valve 21. A collar forming a dust trap may be provided on the valve needle and the latter can be removed en bloc with its seating to prevent disturbance of its adjustment. A cover- 12 with a felt 'or rubber gasket encloses the slide valves and is provided with an inspection window 100.
Patent GB-266173-A (GB)
Title: Improvements in piston rings
IPC: F16J9/22
Filed: 1926-05-10
Abstract: 266,173. Madsen. T. May 10, 1926. Piston packing.-A wearing-ring for protecting the side of a packing-ring groove is formed in two interlocking parts 5<a>, 5b, Fig. 11, each part being split or segmental. Each part may be of L section, or one part may be of L section and the other of rectangular cross-section. A part 5a of L section may engage a groove in the part 5b, in which case the flange 14 of the part 5b may be prolonged. Alternatively, a central rib on the part 5<a> may engage a groove in the part 5<b>. The part 5<b> may be welded to the side of the packing-ring groove, or be secured by pins or otherwise. In a modification the wearing-ring consists of two split rings arranged to break joint, the ends of each ring carrying pins 7, Fig. 9, engaging holes or grooves in the other ring. Specification 259,527 is referred to.
Patent GB-827679-A (GB)
Title: A new or improved stage bracket for use with scaffolding structures
Inventor: GOSTLING PETER ERIC
IPC: E04G5/06
Filed: 1957-04-13
Abstract: 827,679. Scaffolding. KWIKFORM Ltd. April 1, 1958 [April 13, 1957], No. 12125/57. Class 20(2) A bracket for supporting staging on a scaffolding having a vertical member 10 clamped by a clamp 12 to scaffolding 7 and a horizontal member 11 for supporting scaffold planks comprises at the outer end of the member 11 an upwardly directed opening 17 for receiving a scaffold tube 21. Another tube 20 is clamped below the other end of the member 11 and the tubes 20, 21 supported at their other ends by another bracket support intermediately a tube which supports the middle parts of the scaffold planks resting on the tubes 11. The opening 17 is formed between a diagonal tubular strut 15 and a plate 14 connecting the tubes 11, 15. The lower end of the tube 10 engages the scaffolding by a channel 13 or a clamp.
Patent GB-768919-A (GB)
Title: Process for the preparation of podophyllotoxin-glucoside from various species of podophyllum
IPC: C07H17/04
Filed: 1955-04-27
Abstract: The invention comprises podophyllotoxin b -D-glucoside, C28H32O13, m.p. 149-152 DEG  C., and a process for its isolation from Podophyllum peltatum L. or Indian Podophyllum emodi Wall by extracting the rhizome (which has been freed from ether-soluble and -chloroform-soluble resins) with a water-soluble lower alkanol, concentrating the extract, dissolving the residue in aqueous alcohol, treating the solution with tannin-precipitating agents, e.g. lead salts, ferric hydroxide, to separate the glucoside from its tannin-complex, separating from the precipitated impurities, concentrating the residual solution, diluting it with water, and extracting the glucoside from the aqueous solution with water-immiscible organic solvents which may preferably contain small quantity of water-soluble alcohols, from which the glucoside is finally obtained by evaporation of solvent. The new glucoside is soluble in water and in alcohol and by enzymatic cleavage or acid hydrolysis yields podophyllotoxin and D-glucose.  In examples: (1) dried and powdered rhizomes of Podophyllum emodi Wall are extracted first with chloroform and then with methanol, the latter extracts concentrated to 1/2 volume and an equal volume of water added, tannins are then precipitated with excess lead acetate, filtrate is concentrated, extracted with chloroform, and then chloroform-ethanol from which the glucoside is isolated and then purified by chromatography on silica gel.  (2) As in (1) using rhizomes from Podophyllum peltatum L., and effecting purification either as above or by partition between water and ethyl acetate.
Patent GB-898569-A (GB)
Title: Improvements relating to packing devices for use between telescopic elements
Inventor: MORRIS ARTHUR KENNETH
IPC: F16J15/28
Filed: 1959-04-10
Abstract: 898,569. Stuffing-box substitutes. DOWTY MINING EQUIPMENT Ltd. April 5, 1960 [April 10, 1959], No. 12241/59. Class 122 (5). A grit-excluding arrangement for an hydraulic pit-prop or other piston and cylinder device comprises a scraper ring 28 axially located in the cylinder 10 and formed of flat resilient metal strip helically coiled around the ram 11. The free inner diameter of the scraper ring is less than the external diameter of the ram so that the inner edge of the strip, which is of hardened steel, bears resiliently against the ram. The scraper ring has two coils and is cranked at 33 so that the coils lie flat on each other. The ram 11 slides in a sleeve 12 welded to the cylinder 10 and a wiper ring 19 of elastomeric material is retained in a recess 18 in the sleeve 12 by a two-part ring 23 having tongues 25 welded at 26 to the sleeve and projecting through holes 22 in a ring 14 also welded to the sleeve and forming an annular recess 16 in which the scraper ring is located with axial clearance between the edge 27 of the ring 23 and a flange 17 of the ring 14. Any dirt or moisture passing the scraper ring 28 and removed by the wiper ring 19 escapes through slots 29 in the ring 23 opposite the holes 22 in the ring 14. The flange 17 is cut back at 34 to enable a scraper ring to be inserted or removed.
Patent GB-1209333-A (GB)
Title: Pigment print pastes for printing textiles
IPC: D06P1/44
Filed: 1968-03-14
Abstract: 1,209,333. Textile print pastes. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 March, 1968 [15 March, 1967], No. 12319/68. Heading C3P. [Also in Division D1] Aqueous textile print pastes contain a pigment and, as binder, a water-soluble partial or complete ammonium salt of an autocrosslinkable copolymer of (a) 10-40% of acrylic and/or methacrylic acid; (b) 0À5-5% of N- methylolacrylamide, N - methylolmethacrylamide and/or a C 1 -C 4  alkyl ether thereof; (c) 0À05-5% of a comonomer containing two non- conjugated olefinic bonds; (d) 59À45-89À45% of C 1 -C 8  alkyl ester of acrylic or methacrylic acid; and (e) 0-10% of at least one other comonomer, the percentages being with reference to the total weight of all the monomer components. Suitable as comonomers (c) are the C 2 -C 6  alkylene diesters or C 1 -C 6  alkylene diamides of acrylic or methacrylic acid, diallyl ethers of C 2 -C 6  alkylene glycols, and diallyl esters of C 2 -C 6  alkylene dicarboxylic acids and of phthalic acids. The optional comonomers (e) include (meth)acrylamide, (meth)acrylonitrile, vinyl esters of C 2 -C 8  alkanoic acids, C 1 -C 4  alkyl vinyl ethers, vinyl or vinylidene chloride, styrene and butadiene. Inorganic and organic pigments of all types are suitable for the print pastes; the use of copper phthalocyanine is exemplified. The pastes may optionally include assistants such as wetting agents, e.g. watersoluble alcohols, conventional binders, e.g. acrylic ester copolymers and crosslinkable aminoplasts, crosslinking catalysts, e.g. dimethyl oxalate and methyl p-toluene sulphonate, organic liquids for forming oil-in-water emulsions, and emulsifiers. In an example the binder used is a partial ammonium salt of an acrylic acid-N-methylolmethacrylamide-butanediol diacrylate-ethyl acrylate copolymer, optionally in conjunction with an ammonium salt of an acrylic acid-butanediol diacrylate copolymer.
Patent GB-178338-A (GB)
Title: Improvements in pneumatic wheel tyres
IPC: B60C5/20
Filed: 1921-04-29
Abstract: 178,338. M³ller, G. April 29, 1921. Non-metallic elastic bodies and cores.-In a pneumatic tvre of the kind in which several concentric air-tubes d, e, f are adapted to be independently inflated by means of nested valves g, h, i, a thick rubber or fabric core k surrounds the innermost tube f to support the tubes when defiated and to prevent pinching.
Patent GB-1276291-A (GB)
Title: Improvements relating to motorcycles
Inventor: BOTHWELL PETER WILLIAM
IPC: B62H1/14
Filed: 1968-07-01
Abstract: 1276291 Motor cycle supports P W BOTHWELL 27 Aug 1969 [1 July 1968 (2)] 27/68 and 12554/68 Heading B7J. A motor cycle having an enclosed body has on each side a support member comprising a pair of levers 1 and 2 rotatable about a transverse rod 3, the levers supporting a platform 4 and each support member being sealed on the outboard side by an upstanding plate 5 and on the inboard side by a flexible weatherproof lining 6. The levers 1 and 2 can be lowered into an operative position by a foot of the rider and the undersides of the levers are covered with a wear-resisting material in a row to grip the road surface. A hand lever 9 provided with a releasable catch 10 is used to lock the levers 1 and 2 in the operative position when the rider wishes to vacate the motor cycle. In another embodiment (not shown), the support members are operated hydraulically, the rider applying pressure with a foot on the pedal so as to cause movement of a piston in a master cylinder connected to a slave cylinder for each support member. The slave. cylinders may be operated independently of each other by the incorporation of a valve in the hydraulic circuit whereby the motor cycle may be stabilized on a sloping surface.
Patent GB-875846-A (GB)
Title: Baths for the production of electrolytic metal coatings
IPC: C25D3/02
Filed: 1959-04-14
Abstract: Thioamido-N-alkanesulphonic acids having the structure <FORM:0875846/IV (b)/1> or salts of such acids, wherein R, R1 and R11 represent hydrocarbon residues and R and R1 may form a polymethylene chain or may alternatively be hydrogen atoms, are prepared by reacting thioamides or isothioamide-S-ethers with amino-alkanesulphonic acids or their salts, or by reacting isothioamide-S-ethers with halogen-alkanesulphonic acids or sultones. In Example 8, the compound of the formula <FORM:0875846/IV (b)/2> is prepared by heating at 80 DEG C. an aqueous solution of thioacetamide and the sodium salt of o -aminopropane-sulphonic acid.  After the evolution of ammonia is finished, the solution is evaporated in vacuo.  In Example 9, the compound of the formula <FORM:0875846/IV (b)/3> is prepared by treating an aqueous solution of the hydrochloride of thioacetamino-S-benzyl ether with a solution of propanesultone in ethanol.  The mixture is maintained at 60-70 DEG C. for about 2 hours, then cooled and neutralized with caustic soda. The Specification includes a list of thioamido-N-alkane sulphonic acids. These compounds have use in the electroplating of metals (see Group XXXVI).
Patent GB-693225-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D23/12
Filed: 1950-05-19
Abstract: 693,225. Clutches. GENERAL ELECTRIC CO., Ltd., and WHIBLEY, R. H. May 21, 1951 [May 19. 1950], No. 12625/50. Class 80 (ii). A radially acting friction clutch suitable for machine tools such as lathes comprises a driving member 3 with a peripheral friction surface 15 adapted to be engaged by friction shoes 11, 12 carried by arms 7, 8 respectively which are pivoted at 9, 10 on a member 5 secured to the driven shaft 2. The shoes 11, 12 are biased to engage the surface 15 by springs 16 and 17 and are adapted to be released by axial movement of a collar 22 on the shaft 2 against the inner ends of the arms 7, 8. This axial movement is effected by transverse sliding of a plate 24 slotted at 25 to pass over the shaft 2 and carrying projections 35 which co-operate with a conical surface 23 on the collar 22. A handle 36 on a pivoted lever 32 is provided for effecting this sliding of plate 24.
Patent GB-585835-A (GB)
Title: Fishing reels
IPC: A01K89/015
Filed: 1944-07-03
Abstract: 585,835. Fishing reels. KING, J. T. July 3, 1944, No. 12650. [Class 48] A hydraulic fluid drive transmits winding torque from a handle 29 to a line reel 34, acting through a vaned rotor 39 in a fluid-filled chamber 19. The rotor also acts as a brake when the line is being pulled out. A crank-shaft 1 carries a ring- gear 2, the shaft being supported in bearings 5. The drive is transmitted from the gear 2, through one or more gears 10, on fixed pins 9, to a gear 11 carried on a tubular shaft 12 mounted on bearings 13. The shaft 12 has a portion 15, in the fluid-drive housing, that carries a hub 16 which supports the vanes. An annular oil seal 20 acts as a bearing for a portion 37 of the reel 34. Sealing washers are provided. The adjustable handle has a squared portion 26. The gears may be dispensed with, the fluid drive being direct from the shaft to the reel. Saddle plates 40 and a saddle 41 are used to mount the winding device - on the fishing rod 42.
Patent GB-678592-A (GB)
Title: Manufacture of addition products of hydrocyanic acid and acrylic acid nitrile
IPC: C07C55/10
Filed: 1950-05-19
Abstract: In a process for the manufacture of addition products of hydrocyanic acid with acrylic acid nitrile by reacting acrylic acid nitrile in aqueous solution with a water-soluble inorganic salt of hydrocyanic acid having an alkaline reaction, the reaction is conducted in the presence of a proportion of an acid which is at least as strong as acetic acid such that the greater part of the hydroxide formed during the reaction is neutralized. Water soluble inorganic salts of hydrocyanic acid mentioned as starting materials are alkali metal cyanides such as sodium cyanide or potassium cyanide, alkaline earth metal cyanides such as calcium cyanide or ammonium cyanide.  For neutralizing the hydroxides formed during the reaction there may be used inorganic acids such as hydrochloric, sulphuric or phosphoric acids or organic acids such as formic acid or acetic acid.  The reaction product consists principally of succinic acid dinitrile and succinimide which may be isolated or hydrolysed directly to succinic acid.  In examples: (1) acrylic acid nitrile in glacial acetic acid is dropped into heated aqueous sodium cyanide, succinic acid dinitrile and succimide are separated from the two layers formed or the reaction mixture is hydrolysed by boiling with aqueous sodium hydroxide and acidifying or boiling with sulphuric acid to obtain succinic acid; (2) acrylic acid nitrile and phosphoric acid are run into warm aqueous sodium cyanide and the heating is continued.  By hydrolysing the products with acid or alkaline media succinic acid is obtained.  Sulphuric acid is also employed instead of phosphoric acid.
Patent GB-1236705-A (GB)
Title: Process for the production of conjugated diolefins
IPC: B01J23/31
Filed: 1969-03-11
Abstract: 1,236,705. Oxidative dehydrogenation. FIRESTONE TIRE & RUBBER CO. 11 March, 1969 [29 March, 1968], No. 12840/69. Heading C5E. C 4-7  mono-olefins (including cyclohexene) are converted to corresponding conjugated diolefins by oxidative dehydrogenation at 350- 650‹ C. in the presence of a catalyst comprising a mixture of oxides of molybdenum, bismuth and at least one of lanthanum, neodymium, praseodymium, samarium and gadolinium. The catalyst may be supported, e.g. on silica or alumina. A diluent gas may be present, e.g. N 2 , A, CO 2  or (preferably) steam. Examples relate to the production of butadiene andisoprene.
Patent GB-584273-A (GB)
Title: Improvements in and relating to dish washers
IPC: A47L15/39
Filed: 1944-07-07
Abstract: 584,273. Self-feeding rotary brushes; washing dishes, bottles, &c. CRAWFORD, W. S., and KENNEDY, T. W. July 7, 1944, No. 13002. [Classes 19 and 138 (i)] An appliance for washing dishes comprises an eccentricallymounted brush rotated by an electric motor or compressed air through a flexible or rigid shaft, means for supplying hot water to the brush, and controllable means for supplying a detergent to the water when required. As shown, a bracket 21 mounted, for example, above a sink, supports an electric motor 20 and a heater 26 through which passes a water supply pipe 28 provided with a combined water valve and motor switch 27. The heater may be wired in the motor circuit to serve as an equalizing or variable resistance, so that the heating of the. water varies inversely with the speed of the motor. The brush 5, which has a hollow stock, is secured detachably on a hollow shaft 4 rotatable in a handle 1 of insulating material. The shaft is connected through a clutch 36 to a flexible cable 33 driven by the motor shaft 31, and a passage 6 in the handle is connected to a hose 34 leading to the pipe 28. The cable and hose are arranged side-by-side in a sheath 35, or the cable may run within the hose. The handle carries a lever 10 for compressing the hose 34 in order to shut off the supply of water to tho brush, and a fingerpiece for controlling the clutch 36. Also mounted on the shaft 4 within the passage 6 is a brush 12 adapted to scrape detergent from a stick 14 pressed towards it by a spring 15. The stick is removed by way of the cap 16 when the brush is to be used for rinsing. In a modification, the brush is supported beneath the motor by a rigid shaft, the connection being telescopic if desired, or embodying a universal joint. The brush is surrounded by a shield or splash hood embodying a mixing chamber connected to the hot water pipe 28 and also to a cold water pipe branching from the cock 27. Valves operable from inside the hood control the supply of hot and cold water to the mixing chamber, and the cock 27 may have two '' on " positions corresponding respectively to washing and rinsing conditions ; the latter requires a slower brush speed and less hot water. The detergent stick is controlled by a rack and plunger. In either construction, the bracket 21 may be pivoted to or slidable on the wall, and a plate rack may be associated with the heater 26.
Patent GB-224179-A (GB)
Title: Improvements relating to installations for carbonising coal or other fuel
IPC: C10B49/02
Filed: 1924-05-28
Abstract: 224,179. Spencer-Bonecourt, Ltd., and Gregson, W. May 28, 1924. Carbonizing apparatus.-In coking and carbonizing a waste heat boiler is situated in the retort heating flues which is provided with a draughtinducing means and driven by a steam engine or turbine, the exhaust steam from which is discharged into the retort at comparatively low pressure. The steam may be passed through a separator or superheater on its way to the retort and the superheater may be placed in the inlet chamber of the waste heat boiler or may be of the gas-fired type as described in Specification 219,353, [Class 123 (iii), Steam separators &c.]. The waste heat boiler may be worked on induced draught as described in Specification 140,851, [Class 123 (ii), Steam generators].
Patent GB-176709-A (GB)
Title: Improvements in expanding chucks
IPC: B23B31/40
Filed: 1921-05-09
Abstract: 176,709. Hunter, S., and Perry, S. May 9, 1921. Chucks.-An expanding-jaw internal chuck, of the type in which the jaws are operated by a tapered mandrel, is actuated by a friction clutch. The jaws a, kept in contact by a spring y with the mandrel b, secured to a spindle d, are attached to a nut g by flanges k. The nut engages the mandrel by a screw-thread h and is prevented from rotating to expand the jaws by a friction clutch f and hand-lever n. The jaws are retracted by reversal of the spindle.
Patent GB-219124-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B59/00
Filed: 1923-05-17
Abstract: 219,124. Allan, R. May 17, 1923. Two-stroke-cycle engines.-In engines having stationary pistons 1, 2 over which work reciprocating cylinders 4, 5 connected to the crank shaft through a gudgeon 7 and outside rods 8, the cylinders are cast with or are rigidly secured within a tubular casting 3 which slides inside. guides 12, 13. Spaces between the cylinders and the casting 3 form water jackets. The casting has interior projections to receive longitudinal bearers on the cylinders. The inlet and exhaust ports are carried through the cylinders and casting to inlet and cooled exhaust manifolds 18, 17.
Patent GB-1526651-A (GB)
Title: Building-block for a data-logging device assembled from individual sub-assemblies
IPC: B41J29/02
Filed: 1977-03-29
Abstract: 1526651 Data device SIEMENS AG 29 March 1977 [5 April 1976] 13265/77 Heading H4P For providing ready access to supply and takeup paper rolls 11, 13, and printing mechanism 10 of a data logging arrangement including the shown assembly as a modular part, the carriage 5 may be pulled out and pivoted downward, the printing mechanism being coupled to printed circuit boards 2 accepting p.c.m. or binary coded data by means of a flexible, flat tape ensuring conductive continuity between boards 2 and carriage 5 for all positions of the latter.
Patent GB-564683-A (GB)
Title: Sampling apparatus
IPC: G01N1/10
Filed: 1943-08-16
Abstract: 564,683. Sampling liquids. MITCHELL, R. G., HUNN, S. A., and EAGLE OIL & SHIPPING CO., Ltd. Aug. 16, 1943, No. 13269. [Class 106 (v)] A device for sampling liquid at the bottom of a tank comprises an inner cylinder divided into compartments and sliding relatively to an outer cylinder, both cylinders being provided with ports which register when the device rests on the bottom of the tank, but are out of register when the device is suspended. The outer cylinder 1, provided with ports 3, is pro vided with feet 9 and is suspended by links 17 connected by a fulcrum pin 16 sliding in slotted members 14. The inner cylinder 2, having ports 4, is divided into compartments, the lowest com partment enclosing a weight 8 and is suspended from the pir 16 by a link 10. The links 17 are connected by cords 18 to a suspending cord 23. A remov able locking pin 25 retains the inner cylinder in its raised posi tion after the sample has beer taken and the inner cylinder is provided with short feet 26 to limit its downward traverse.
Patent GB-187261-A (GB)
Title: Improvements in thermionic devices
IPC: H01J1/16
Filed: 1921-05-10
Abstract: 187,261. Ges. f³r Drahtlose Telegraphie, Meissner, A., and ritze, W. May 10, 1921. Vacuum tubes.-The cathode 1 is formed of a closely-wound double-thread helix with the two ends of the wire at the same end of the helix. To prevent sagging, the cathode may be wound on a rod of refractory material. A helical grid 2 and a cylindrical anode 3 are mounted co-axially with the cathode. Reference has been directed by the Comptroller to Specifications 5557/15. 5741/15, 140,166, and 162,367.
Patent GB-1093793-A (GB)
Title: Improvements in and relating to gas turbine engines
IPC: F02C7/236
Filed: 1965-03-30
Abstract: 1, 093, 793. Gas turbine engine fuel supply. F.T.C. MA. June 29, 1966 [March 30, 1965], No. 13339/65. Heading F1G. The invention relates to a gas turbine engine in which an ejector type pump energized by air under pressure flowing to the combustion chamber is utilized to draw in gaseous fuel from a source thereof and to deliver it into the air flow. In Fig. 1 air passes from compressor 4 to the nozzle 7 of the ejector pump which comprises a Venturi nozzle 6, the ejector drawing in fuel through line 8 from the source 9, the air and fuel mixture discharging from the Venturi into the combustion chamber 1, the combustion gases discharging to the turbine 2 which may be connected to drive the compressor 4, also a generator 5. In Fig. 2 (not shown) the gaseous fuel is pre-compressed in a compressor 11 driven by the turbine 2 before passing to the ejector.