baber/WOPTO huggingface dataset:
Patent GB-1260757-A (GB)
Title: A rotary valve member seated within the cylinder head for endothermic two-or four-stroke cycle or diesel engines
Inventor: LAMPERTI ENRICO
IPC: F01L7/10
Filed: 1969-03-04
Abstract: 1,260,757. Rotary valves; lubricating. E. LAMPERTI. March 4, 1969 [March 9, 1968], No. 11416/69. Heading F1B. A two or four stroke or diesel engine comprises a rotary valve integral with an axially extending shaft supported in bearings 5, 14, Fig. 1, resiliently loaded annular seals (26<SP>1</SP>, 41) Fig. 8 (not shown) in recesses in the radially extending surface adjacent the cylinder and wall and in the side cylindrical wall of the valve, a lubricant feed from a channel in the shaft, with the recesses and a gap between the valve-member and the cylinder head, the rotary valve-member including a channel for communicating with an outlet channel (28<SP>11</SP>) and means for adjusting the gap dimensions. The duct 9 registers with a lubricant inlet duct (10) Fig. 3 (not shown) as the valve rotates. Port 2 registers sequentially with an inlet duct, a duct leading to a spark-plug and an exhaust duct. In another embodiment the gap dimension is adjusted by a screw 39, Fig. 5 against the force exerted by a cup spring 49. In another embodiment the hole communicating with the spark-plug hole is in a cylindrical flange projecting downwardly from the rotary valve.
Patent GB-143025-A (GB)
Title: Improvements relating to means for stopping the delivery of yarn in doubling frames
IPC: D01H13/18
Filed: 1919-05-08
Abstract: 143,025. Harrison, F. A., and Harrison, J. May 8, 1919. Delivery stopping; stop-motions.-A pendulum wire D is hinged to the cap bar of doubling and twisting frames and is weighted and balanced so that it is held up by the weight wand the tension of the yarn, and, when an end breaks, its momentum in falling carries a stop-pad E cf flexible material between the rollers. When the frame slows down, the wire falls gently to its balanced position, and the pad is not inserted between the rollers. The pad may be pivoted to the wire or may be secured so as to be more or less rigid therewith.
Patent GB-550362-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/22
Filed: 1941-09-09
Abstract: 550,362. Telephone instruments. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Sept. 9, 1941. No. 11555 [Class 40 (iv)] In a contact microphone comprising a chamber 11 containing carbon granules which is formed in a housing 10 to which the vibrations are applied and is closed by a diaphragm 14, the dimension of the chamber 11 in the direction of compression is about ten times the maximum amplitude of movement of the housing, and the diaphragm has high natural resonance and is coupled with a mass 18 which brings the resonance into the neighbourhood of the upper limit of the frequency range necessary for intelligible speech. A resonance at between 1500 and 300 cycles per second is suitable. In the construction shown the chamber 11 is about 1 millimetre in thickness and of about half the diameter of the diaphragm, and is surrounded by a ring 19 of wadding or similar compressible material.
Patent GB-1536227-A (GB)
Title: Composite semi-permeable membranes and methods of making same
IPC: B01D69/12
Filed: 1976-03-23
Abstract: 1536227 Polymeric semipermeable membranes UOP Inc 23 March 1976 11609/76 Headings C3R and C3L [Also in Division B1] A method of making semipermeable membranes comprises reacting a film-forming polymer with a monomer which reacts with and cross-links the polymer to form a cross-linked polymeric film having semipermeable properties and grafting on to the polymer at reactive sites a reactant which blocks such reactive sites at which oxidizing attack or fouling might otherwise occur. The grafting reaction may be before, during or after the cross-linking reaction. The polymer may be a polyethyleimine or a polyvinyl alcohol. When a polyethylenimine is used it may be cross-linked with a di- or triacyl halide, sulphonyl halide, bischloroformate or diisocyanate and the reactive sites may be blocked with an ethylenic compound, an epoxide an aldehyde or an anhydride. When a polyvinyl alcohol is used it is cross-linked with a di- or tri-acyl halide, diisocyanate or ethylenic compound which reacts with hydroxyl groups and the reactive sites (remaining hydroxyl groups) are blocked with an acid halide, isocyanate or epoxide. In examples polyethylenimines are reacted with acrylonitrile and with epichlorhydrin to block reactive sites, coated on a porous fabric-reinforced polysulphone substrate and cross-linked with isophthaloyl chloride to form supported membranes; a similarly supported membrane of polyvinyl alcohol also is obtained, cross-linked with isophthaloyl chloride and with reactive sites blocked by reaction with epichlorhydrin; the membranes are tested for salt-rejection using aqueous sodium chloride solution.
Patent GB-162253-A (GB)
Title: Improvements in or connected with ploughs, cultivators or the like
IPC: A01B63/16
Filed: 1921-04-22
Abstract: 162,253. Roen, C. April 22, 1920, [Convention date]. Cultivators and diggers; ploughs; frames for implements; adjusting parts of implements; steering implements.-In a cultivator, plough or like implement of the kind in which the wheel frame is positioned within the frame of the machine and in which means are provided for adjusting the position of the machine frame in relation to the wheel frame, the fore carriage is pivotally connected to the machine at the same point 8 as the machine frame is pivoted to the wheel frame, and means are provided for adjusting the height of the machine frame with regard to the fore-carriage. The tool frame comprises bent channel-irons 1, longitudinal bars 2, and cross-bars 3, the tools being fastened to the bars 2 and stayed by plates or bars 6. The wheel frame consists of bars 7 pivoted on the too] frame at 8 and connected to a cranked cross-bar 9 carrying the wheels 11. The wheel frame is adjustably connected by eye-bolts and chains, &c. to arms projecting from a rock bar 17 on the tool frame, which is raised or lowered by rocking the bar 17 by means of a lever 18. The fore-carriage is also pivotally connected to the tool frame at 8, and is provided with a pivoted catch lever 30 adapted to engage holes in a vertical bar 28 on the tool frame, to lock it in adjusted position. The vertical standards 23 of the steering wheels 24 are coupled by diverging arms 25 and links 26 to the pivoted draught lever 27. The fore-carriage frame comprises stayed bars 20 and two cross-bars 22 one below the other. In the Specification as open to inspection under Sect. 91 (3) (a) of the Act, the application of the arrangement described to digging machines was included, but this does not form part of the Specification as accepted.
Patent GB-118154-A (GB)
Title: Improvements relating to Slubbing, Roving, and like Frames.
Inventor: WELFFENS EMILE JOHN
IPC: D01H1/20
Filed: 1917-08-17
Abstract: 118,154. Welffens, E. J. Aug. 17. 1917. Building-motions.-In slubbing, roving, and like frames, in order to relieve the governing-gear of the major part of the load due to the lifting- motion, direct connexion is severed between the shaft operating the lifting-gear and the cone or other governing gear, and such shaft has imparted to it an aggregate motion, part of which is at constant speed and is derived from the main driving- shaft, and part at variable speed, and is derived from the member of the differential that gears with the bobbin train. The shaft 1, Fig. II, which operates the lifting-rack 4 through bevel gearing 3, reversing gearing 33, and gears 24, is driven through gearing 15, 17 from'the main shaft A and gearing 18, 19, 20 from the member 10 of the differential 9. The gears 17, 18 are loose on the shaft 1 and drive it through' bevels 21, 22 fast on the shaft. The train of gearing connecting the shaft 1 with the rack pinion shaft may be simplified and comprise an epicyclic tumbler reyersing-gear and, if desired, chain gearing. A suitable tumbler gear comprises gears 25, 26, Fig. XIV, carried by a link 28, either of which gears can be brought into engagement with the gear 30 by the operation of an eccentric controlled by a cord 35 running round a sheave 31 on the eccentric. The cord 35 is operated by a lever oscillated by the mechanism which reverses the direction of travel of the bobbin rail. The connexions between the shafts A, &c., and 1 may be modified by the use of a chain drive, and other forms of planetary gearing. The gears 15 and 17 may be connected by bevel and spiral or worm gearing to secure accurate adjustment of the speeds, and with this end in view, the gears 20, 18, and 15, 17, may be connected through idlers or through trains of compound gears. The train connecting the shaft 1 and the rack pinion shaft may be arranged so that the reversing-bevels 23, Fig. XII, are on the rack pinion shaft itself or on a shaft in close proximity to it, so that the number of pinions, the direction of rotation of which has to be reversed, is reduced to a minimum. The arrangement may be applied to other governing-gears such as friction disks, or expanding pulleys and to governing-gears which are non-rotating.
Patent GB-677130-A (GB)
Title: Improvements in or relating to plain bearings or the like
IPC: F16C33/20
Filed: 1949-05-04
Abstract: A plain bearing comprises a synthetic non-metallic compound containing dispersed particles of a substance capable of being dissolved by the lubricant employed or by some constituent or constituents of the lubricant, so as to produce a minutely pitted bearing surface under the action of lubricant supplied to the bearing.  The synthetic compound may be incorporated in a metallic structure.  In one embodiment the synthetic compound consists of a polyamide resin such as nylon, the dispersed particles are of sodium carbonate or benzoate, and the lubricant is water.  In another embodiment a phenol formaldehyde synthetic resin compound has lithium metal powder or calcium oxide powder mixed therewith before moulding to provide a bearing suitable for use with an oil lubricant containing oil acids such as stearic or oleic acid, which react with the lithium or calcium oxide to form soaps which dissolved away in the oil and leave minute pits over the whole bearing surface.  The synthetic compound may consist of polymerized tetra-fluoro-ethylene. Specifications 657,080, [Group XXXIV], and 676,300 are referred to.
Patent GB-594572-A (GB)
Title: Improved reciprocating pump for lubricants
IPC: F16N13/08
Filed: 1945-05-11
Abstract: 594,572. Reciprocating pumps for liquids. PIQUEREZ, E. May 11, 1945, No. 11928. Convention date, May 17, 1944. [Class 102 (i)] In a reciprocating pump for lubricants, a hand- or foot-operated piston-rod 18 engages with lost motion an annular piston 29 which on its down-stroke delivers lubricant from a chamber 10a below the piston to an outlet port 11 and simultaneously draws a further charge into a chamber 10 above the piston when inlet ports 9 are uncovered, and its upstroke transfers lubricant from the upper chamber 10 to the lower one 10a through grooves 30 in the pistonrod or through a clearance space between the piston-rod and the piston, the grooves or clearance being closed on the downstroke by the piston or a stop 27 on the piston-rod respectively. The lower stop 32 on the pistonrod comprises a split ring, the gap in which permits transfer of the lubricant from the clearance to the chamber 10a.
Patent GB-902951-A (GB)
Title: A method for the stabilization against heat of polycarbonates
IPC: C08K3/34
Filed: 1960-04-05
Abstract: Polycarbonates prepared by reacting organic dihydroxy compounds with phosgene and/or chlorocarbonic acid esters of organic dihydroxy compounds are stabilized against heat by incorporating in them up to 6,0% of certain organic compounds containing one or more tin atoms. The tin atoms may be united to (a) three aryl radicals and one hydroxyl radical, (b) three aryl radicals and one alkyl, cycloalkyl or aryl radical, (c) two or three aryl radicals and oxygen; the aryl radicals may contain alkyl substituents. Many tin compounds are specified.  Many aromatic, cycloaliphatic and aliphatic dihydroxy compounds from which the polycarbonates may be prepared are also specified.  The polycarbonates may be reacted with aldehydes.  The tin compounds may be admixed with the polycarbonates in powder or granular form, may be added to solutions of the polycarbonates or may be added to the polycarbonate-forming reaction mixture.  In examples organotin compounds were added to powdered polycarbonates of the following dihydroxy compounds (1) 1,1-(4,41-dihydroxydiphenyl) cyclohexane; (2), (3), (6) and (8) bisphenol A; (4) 4,41-dihydroxydiphenyl sulphone; (7) 4,41-dihydroxy-3,31-dimethyl diphenyl sulphone.  In Example (5), a polycarbonate is made by reacting phosgene with bis-phenol A in the presence of aqueous sodium hydroxide solution, methylene chloride, tetraphenyl tin and triethyl benzyl ammonium chloride.
Patent GB-185156-A (GB)
Title: Machine for making wire and other ropes
IPC: D07B3/04
Filed: 1921-04-27
Abstract: 185,156. Kj÷len, R. O. April 27, 1921. Machines for making.-Each reel 15 for the wires or threads 14 forming a rope is placed on end on a horizontal shaft 9, the end trunnions 10, 11 of which are mounted in rings or discs 5, 6 supported and driven at their circumference. The reel does not rotate with the discs, but merely turns about its own axis in unwinding. Rollers 3, 4 on shafts 1, 2 support and drive the rings 5, 6, which are connected in pairs at their circumference by tubes 7 corresponding with holes 8 in the rings, such tubes serving to guide the wires from previous reels and to twist them around the wire coming from its own reel through the hole 12. The shaft 9 is formed as a crankshaft, and is provided with a weight 18 in order to keep it in the same position, so that it is not rotated by the rotation of the rings. Part of Fig. 3 shows the arrangement for making a threewire rope, while another arrangement allows a thin rope formed at an earlier part of the machine to be brought down through a centre hole to form a core for a thicker rope. Rope may obviously be extracted simultaneously from both ends of such a machine.
Patent GB-1421280-A (GB)
Title: 3-heterocyclicthiomethylcephalosporins
IPC: C07D/
Filed: 1973-11-13
Abstract: 1421280 3-Heterocyclic-thiomethyl-cephalosporins SMITHKLINE CORP 13 Nov 1973 [14 Nov 1972] 12125/75 Divided out of 1421279 Heading C2C Novel compounds I in which R is H or C 1-4  alkyl, Z is NR or S, A is O or S and M is H, CH 2 -CCl 3 , t-butyl, benzhydryl, benzyloxymethyl, p-nitrophenyl, p-methoxyphenyl or p-methoxybenzyl are prepared by reacting 7-amino-cephalosporanic acid or the corresponding ester thereof with a compound II The heterocyclic substituent in compounds I is 5 - oxo - #<SP>2</SP> - 1,2,4 - triazolinyl, 5 - thioxo - #<SP>2</SP>- 1,2,4 - triazolinyl, 5 - oxo - #<SP>2</SP> - 1,3,4 - thiadiazolinyl or 5-thioxo-#<SP>2</SP>-1,3,4-thiadiazolinyl in which one N-atom may be further substituted by methyl or ethyl.
Patent GB-633826-A (GB)
Title: Improvements in or relating to the mounting of metal elements in thermoplastic members
Filed: 1946-04-22
Abstract: 633,826. Ornamenting. HOLZER, R. C. DE. April 22, 1946, No. 12176. [Class 93] [Also in Groups XXVIII and XXXVI] A metal rod or wire 1 is mounted in a member 2 of thermoplastic material, i.e. artificial resin melting or softening at temperatures normally used for soldering, by interposing a bush 4 of a heat-resisting material, such as glass, a ceramic material or " Bakelite " (Registered Trade Mark). The bush, which may be in the form of a pellet moulded on the wire, is placed in a hole 3 in the member 2 and the edges of the hole are upset around the pellet by applying pressure, by means of press tools 5, 6, and heat : the hole may extend only partly through the member 2 in which case a single press tool will suffice. Fig. 4 shows an eyelet 7 mounted in a plate 2 by means of a heat-resisting washer 8, and Fig. 5 shows a wire 1 in a pellet 4 held between plates 9, 10 provided with depressions to receive the pellet. Specification 586,082, [Group XXXVI], is referred to.
Patent GB-695503-A (GB)
Title: Improvements in or relating to the preparation of alkyl esters of aliphatic -a:-a-unsaturated carboxylic acids
IPC: C07C69/54
Filed: 1951-05-24
Abstract: Alkyl esters of aliphatic a  : b -unsaturated carboxylic acids are prepared by a process in which aliphatic b -alkoxy carboxylic acid nitriles are reacted with sulphuric acid at elevated temperatures. Acrylic acid nitrile, methacrylic acid nitrile and their homologues such as ethacrylic acid nitrile may be converted into the esters if first converted by the addition of alcohols to b -alkoxypropionitrile, b -alkoxy, isobutyric acid nitrile and their homologues.  The b -alkoxy carboxylic acid nitrile may be passed into hot sulphuric acid and the resulting unsaturated ester may be continuously distilled off, if desired under vacuum. Premature polymerization in the reaction mixture may be prevented by the addition of a polymerization inhibitor such as hydroquinone, pyrogallol, tannin or sulphur.  In examples: Acrylic acid methyl ester (1) methacrylic acid methyl ester (2) and acrylic acid butyl ester (3) are obtained respectively from b -methoxy propionic acid nitrile, b -methoxyisobutyric acid nitrile and b -butoxypropionic acid nitrile respectively. b -Methoxypropionic acid nitrile is obtained by the addition of methanol to acrylic acid nitrile and b -methoxy isobutyric acid is similarly obtained.  b -butoxy propionic acid nitrile is obtained by dropping acrylonitrile into butanol in which metallic sodium or sodium methacrylate is dissolved with cooling.  The reaction product is neutralized and b -butoxy propionic acid is distilled.
Patent GB-837274-A (GB)
Title: Improvements in or relating to method and apparatus for measuring wave propagation time
Inventor: ERDMAN DONALD CALVIN
IPC: G01N29/34
Filed: 1956-04-20
Abstract: 837,274. Acoustic delay lines. ELECTROCIRCUITS Inc. April 20, 1956, No. 12227/56. Class 40 (8). [Also in Group XL (c)] A variable ultrasonic liquid delay line as used in a frequency-modulated radar or ultrasonic testing device (see Group XL (c)) comprises separate transmitting and receiving piezo-electric transducers 55, 57, Figs. 3 and 4 and Fig. 2 (not shown) spaced apart in a liquid medium, e.g. water or mercury, on the axis of an annular metal or plastic member 59 whose internal surface has a right-angled groove, Fig. 4, and comprises a plurality of small arcuate sections having progressively increasing radii of curvature in the horizontal plane so that the contour of the aperture in the horizontal plane is substantially a single-turn spiral. A rightangle reflecting prism 63 is mounted on the axis of the member 59 such that the ultrasonic beam from transducer 55 is reflected outwards by the upper surface of the prism 63 to the upper surface of the groove in the member 59, then downwards to the lower surface of the groove, back to the lower surface of the prism 63 and thence to the receiving transducer 57 so that the . length of the transmission path changes discontinuously when the prism 63 or the member 59 is rotated about the axis. The discontinuous change in path length prevents unwanted Doppler effects; for slow rates of rotation the Doppler effect is negligible and the inner surface of member 59 may then be a smooth spiral. As used in Fig. 2 the test transducer 43 is arranged so that the path length between it and the nearest surface of the sample 49 is equal to the unvarying portion of the transmission path in the delay line. In an alternative form, Fig. 5 (not shown) in which an electrical input is applied through a hybrid network to a common transmitting and receiving crystal transducer, the ultrasonic waves transmitted by the transducer are reflected back thereto by the edge of a spiral cam which is rotated to vary the length of the transmission path.
Patent GB-593718-A (GB)
Title: Improvements in electric steam boilers
IPC: F22B1/30
Filed: 1945-05-15
Abstract: 593,718. Heating liquids by electricity. STEEN, C. A. May 15, 1945, No. 12228. [Class 39 (iii)] An electric steam boiler in. combination with a valve 25 for maintaining the level of the water in the boiler constant, has electrodes 6 which are in contact with the water, supported by a rod 11 which passes through a stuffing box 12 in the upper portion of the boiler. A limit stop in the form of a ring 15 on the rod 11 determines the lowermost position of the electrodes, the ring resting against a plate 13 welded between the upper part 2 of the boiler, and a cylindrical drum 14. Weights 18 enable the rod 11 to be loaded, and a plate 19 attached by a spring 20 to an axially adjustable spindle 21 constitutes an upper stop for the rod, and also makes it possible to obtain intermediate degrees of loading on it. Steam pressure acting on the underside of the rod 11 adjusts the depth of the electrodes in the water, so that for a constant steam consumption the steam pressure automatically corresponds to the loading weight on the rod. A leak 31 allows air and gases to escape from the boiler on starting the heating operation, and thereafter the two-way cock 32 is adjusted to a narrower position to allow the oxygen-hydrogen mixture to escape. The valve 25 is of the float type.
Patent GB-256681-A (GB)
Title: Improvements in apparatus for counting tickets and the like
IPC: G06M7/06
Filed: 1925-05-11
Abstract: 256,681. De la Rue & Co., Ltd., T., and Nicholls, F. May 11, 1925. Counters for checks, coins, &c.-In an apparatus for counting tickets, &c., wherein a striker pushes out the lowest ticket from a hopper, the striker is constituted by a plurality of vanes b each pivoted at one end to a boss l on a rotatable drum a. The shaft of the drum carries a dial m co-operating with an indicating pointer n and has a worm actuating a counting mechanism o.
Patent GB-126972-A (GB)
Title: Improvements in Fuel and Process of Forming the same.
Inventor: MARKLE DONALD
IPC: C10L5/14
Filed: 1919-05-16
Abstract: 126,972. Markle, D. Sept. 11, 1917, [Convention date]. Composition fuel. - Anthracite culm and hard pitch, preferably ground fine, are mixed and heated in a retort to distil off the volatile constituents of the pitch. The quantity of pitch employed is from 15 to 35 per cent of the culm. The mixture is preferably heated in the mass and without previous compression, the product being a hard dense mass of unchanged particles of anthracite.held together by the pitch residues; its cellular space is less than that of coke, being below 40 per cent of the total. A temperature of about 700‹ C. is preferably employed for heating the mixture.
Patent GB-455387-A (GB)
Title: Improvements in latch hooks
IPC: D04G3/02
Filed: 1935-04-26
Abstract: 455,387. Rug - making needles. ENGLISH NEEDLE & FISHING TACKLE CO., Ltd., and BOOTH, J., Central Works, Studley, Warwickshire. April 26, 1935, No. 12502. [Class 112] The latch 8 of a hook, such as is used for inserting lengths of wool into a backing fabric, is normally held substantially at right angles to the shank 1 of the hook by a spring 5, the end 7 of the latch or the spring being shaped to effect this. The spring 5 is secured at one end only, as by rolling over the sides 10 of a groove in the shank.