baber/WOPTO huggingface dataset:
Patent GB-1384405-A (GB)
Title: Azlactones
IPC: D06M13/418
Filed: 1972-02-17
Abstract: 1384405 Azlactones LAPORTE INDUSTRIES Ltd 1 Feb 1973 [17 Feb 1972] 7430/72 Heading C2C [Also in Division D1] Azlactones having one of the general formulµ where R, R<SP>1</SP> and R<SP>2</SP> are each hydrogen, or a hydrocarbon or substituted hydrocarbon radical, R<SP>3</SP> is a hydrocarbon diradical and R<SP>4</SP> and R<SP>5</SP> are each hydrogen or a hydrocarbon or substituted hydrocarbon radical or one only of R<SP>4</SP> and R<SP>5</SP> is a hydroxyl or ether radical, at least one of the hydrocarbon radicals being or including an aliphatic radical of at least 8 carbon atoms in a chain, are dissolved in a non-reactive organic liquid, e.g. aromatic hydrocarbons, halogenated hydrocarbons, ketones or aliphatic ethers or emulsified with an aqueous medium and used for waterproofing cellulosic materials. Certain of the azlactones may be prepared by brominating a carboxylic acid RR<SP>1</SP>CHCOOH to yield an α-bromocarboxylic acid RR<SP>1</SP>CBrCOOH, reacting the latter with ammonia to yield an α-aminocarboxylic acid which is then contacted with an acyl chloride R<SP>2</SP>COCl to form an N-acyl α-amino carboxylic acid RR<SP>1</SP>C(NHCOR<SP>2</SP>)COOH and effecting ring closure with acetic anhydride. Alternatively, a diethylacetamidomalonate may be converted to a diethylacetamidoalkylmalonate CH 3 CONHCR(COOEt) 2  by treatment with sodium ethoxide and an organic halide, followed by treatment with potassium hydroxide and a mineral acid to give the corresponding monocarboxylic acid, and then ring closure is effected with acetic anhydride. The diethylacetamidoalkylmalonate may also be treated with hydrochloric acid to yield an α-aminocarboxylic acid from which the azlactone is prepared as in the first method. Alternatively, at least some of the azlactones may be prepared by forming a long chain alkyl or alkenyl derivative of a preformed azlactone.
Patent GB-549652-A (GB)
Title: Improvements in or relating to stranded wire rope and methods of making the same
IPC: D07B1/00
Filed: 1941-06-12
Abstract: 549,652. Wire ropes. WICKWIRE SPENCER STEEL CO. June 12, 1941, No. 7452. Convention date, June 12, 1940. Drawings to Specification. [Class 109] The load-carrying portion of a stranded wire rope, suitable as a drilling line for use in drilling operations in deep wells, is composed of preformed strands laid up on a hempen or metallic core. The strands of the lower portion are ordinary, i.e. unpreformed, so that the rope is sufficiently elastic to whip the drilling tools on and off the bottom of the bore hole. An intermediate portion of the rope may have successive lengths preformed to different degrees.
Patent GB-456808-A (GB)
Title: Improvements in explosion engines with oscillating blades
IPC: F02B53/00
Filed: 1936-03-12
Abstract: 456,808. Oscillating - vane internalcombustion engines. BABEL, R., 41, Avenue LÚon Gambetta, Clichy, Seine, France. March 12, 1936, Nos. 7481 and 7482. Convention dates, March 13, 1935 and Feb. 17, 1936. [Class 110 (ii)] An internal-combustion oscillating-vane type of engine has the end face of the hub from which the vanes extend packed by means of an axially spring- or fluid-pressed annular split ring located in a housing in the casing and elastically applying its cylindrical surface against the cylindrical wall of the housing. Instead of the annular split ring a piston with packing rings may be used. The Figure shows a section through two diametral vanes 6, 7 which are secured on the hollow shaft by a flush screwed-in ring 25 which thus forms the central portion of the hub. The annular split ring 20 has its cut situated against one of the abutments and is prevented from turning by a tongue and groove arrangement at the region of the other abutment. The ring is pressed axially by a spring or the pressure gases and pressure oil which passes through orifices into grooves on the face of the ring to provide a sealing and lubricating film. Cooling fluid is circulated by an impeller 14 through a tube 11 extending inside the shaft to the vanes, thence by the hollow shaft 12 and a pipe 13 to the abutments and the casing jacket and so to a radiator, the fan 17 of which may be on the same shaft as the impeller. Only the vanes may be fluid-cooled, this being effected by circulating the lubricating oil from the driving- mechanism casing.
Patent GB-255371-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/344
Filed: 1926-03-19
Abstract: 255,371. Seaman, C. J., Seaman, C. F. N., and Titterton, F. March 19, 1926. Fixed abutment type. - In a pump of the outwardly-sliding vane type having a plurality of abutments d, one vane in excess of the number of abutments is provided so that the vanes c force one another out by direct contact. The vanes c may be fitted with anti-friction rollers at their inner ends. The inlet parts and the outlet ports are respectively connected by passages in the casing end covers. A number of the pumps may be used in series.
Patent GB-392705-A (GB)
Title: Improvements in and relating to road traffic control or danger signals
IPC: G08G1/09
Filed: 1932-03-15
Abstract: 392,705. Road signals for controlling traffic. EATON, S., 29, Stalbridge Avenue, Liverpool. March 15, 1932, No. 7619. [Class 118 (ii).] A road-traffic control signal set by a vehicle depressing a road member is held by catch mechanism which is released after a predetermined interval by the plunger of a dashpot. The road member 27 depressed by the vehicle has rubber packing 38 and bears on vertically sliding rods 29 having rollers 30 adapted to depress a bar 31 connected by links 32 to a stationary bar 33. The horizontal movement of the bar 31 is transmitted by a link 32a to chain and sprocket mechanism 39, lifting-rods 46 and a fork 48 which raises the plunger 20 of a dashpot 19, and at the same time lifts a rod 10 to rotate a spindle 7 and move the signal discs to show the required colours at apertures 4, 5 in stationary discs 3. In rising, the plunger head 22 releases a lever 15, allowing a spring 17 to move a catch 10a to hold an abutment 9 on the signal spindle 7. The plunger falls slowly as the oil escapes past an adjustable valve 25, until at length the head 22 engages the lever 15 and disengages the catch 10a, permitting the signal discs to return to " all clear."
Patent GB-287174-A (GB)
Title: Improvements in and relating to coverings for vehicles
IPC: B61C11/06
Filed: 1928-03-13
Abstract: 287,174. Kruckenberg, F. March 18, 1927, [Convention date]. Bodies.-Road vehicles are formed with a covering of non-resonant preferably heat-insulating material which is insensitive to blows, the covering being mounted on a framework of band or wire members. As shown the framework comprises longitudinal tubular members 20 with bracing members 21, 22, Fig. 2. Profile bands 34, Fig. 6, are secured to the members 20 in various ways and the covering such as slabs 39 of sponge rubber are secured to the bands 34, spacing members 38, which may be spiked, being provided. The abutting edges of the slabs may be beaded and secured together by runners 40 which may, however, be embedded in the slabs. For internal partitions a shaped member 54, Fig 13, of sponge rubber surrounding the vertical member 23 separates the walls 50 which are secured by a member 56 of rustless steel. An inner covering of sponge rubber may be secured to the interior of the framework. The rubber slabs are coated with lead foil, laid or sprayed and coatings of cellulose acetate which may have lead amalgam incorporated therewith to give a mirror effect. As shown in Fig. 14 the interlacing spring steel bands 59 are secured to the frames 57. Wire netting may be embedded in the cellulose acetate coating. Specification 257,193, [Class 103 (iv), Railway &c. vehicles, Body details &c. of], is referred to.
Patent GB-1425523-A (GB)
Title: Nut
IPC: F16B39/284
Filed: 1973-02-16
Abstract: 1425523 Nuts WILSON-GARNER CO 16 Feb 1973 7767/73 Heading F2H A free-spinning nut 37 or 41 with flats 23a or 23b about its outer periphery, e.g. a hexagon nut, has concave recesses 39 or 43 in the flats on one side of a midplane containing the axis of the nut so that the mass of the nut on said one side of the midplane is less than the mass on the other side, the recesses being shorter than the length of the nut and extending into one end face of the nut. As shown, the recesses extend over more than half the nut length and more than half the width of a flat 23, and may be formed in three, Fig. 5, or four, Fig. 4, adjacent flats. The recesses allow slight asymmetric deformation of the nut when it is tightened. As shown, the nut bearing face has an asymmetric annular recess (29) (Figs. 2, 3, not shown) about the end of the threaded bore, the wider and/or deeper half 31a or 31b of the recess (29) being in the nut half with the side recesses 39 or 41. As described and claimed in Specification 1,425,524, when the nut is tightened on to a work surface, part of the surface is deformed into the recess 29 to resist rotation or loosening of the nut. In a modification (Fig. 7, not shown) the nut has a plane bearing face, with no annular recess, and the side recesses (47) open into the bearing face to receive deformed work surface material for locking. The nut may be of metal or nylon.
Patent GB-1033710-A (GB)
Title: A process for the production of twisted yarns
IPC: F16F9/00
Filed: 1962-12-31
Abstract: The description is virtually identical with that of Specification 1,033,709 but the claims relate to the method of winding the packages, waste bunches and transfer tails.
Patent GB-1396045-A (GB)
Title: Deflation signalling system for tyres or other chambers  containing fluid under pressure
IPC: B60C23/00
Filed: 1973-02-16
Abstract: 1396045 Deflection indicating systems H C WINTHER W J WINTHER C R WINTHER W J WINTHER and S M WINTHER 16 Feb 1973 7807/73 Heading B7C A deflation indicating system suitable for a tyre of a vehicle comprises a pressure responsive valve, e.g. 12, connected, in use, to the tyre interior and adapted to open when the tyre pressure falls below a predetermined level, a device 25 connected to the valve and including an actuating member arranged to move from a first to a second position when the valve opens, the device and valve being carried, in use, on the vehicle wheel mounting the tyre, and a signal producing element, e.g. a switch 26 forming part of a lamp 28 circuit, mounted, in use, on a non-rotatable part P on the vehicle axle A to be engaged and actuated by the member to produce a warning signal when the wheel is rotating with the member in its second position. The system is also suitable for application to other movably mounted chambers containing fluid under pressure. In one embodiment, Figs. 1 and 3, the valve 12 is connected, in use, to the tyre interior through a hose 7 which has a tyre inflation valve at one end 10, there being a detent 15 in the valve 12 to depress a stem 11 of the inflation valve and admit the tyre pressure into the valve 12, and the valve contains a poppet 40 which can be urged away from a seat 38 by a spring 42 when the tyre pressure falls below the predetermined level, which level is decided either by selection of the characteristics of the spring 42 or by adjustment of a bushing 43. The device 25 comprises (Fig. 2, not shown) a tube (30) connected at one end to the valve 12 through tubes (19) and 17 and containing a slidable piston (31) with a projecting rod (32) forming the actuating member, the piston being constructed to seal the tube (30) to prevent escape of tyre pressure to the atmosphere when piston movement occurs due to gas under pressure admitted to the tube (30) on opening of the valve 12. In a further embodiment, Fig. 4, the valve 121 is located adjacent the device 25 and has a spring biased poppet 41<SP>1</SP> with an extension 44<SP>1</SP> engaged in a groove 61 of a piston 31<SP>1</SP> of the device 25, whereby on opening of the valve 12<SP>1</SP> the extension 44<SP>1</SP> is disengaged from the groove 61 enabling a spring 62 to move the piston and hence a rod 32<SP>1</SP> forming the actuating member. A side branch 65 of the housing of the valve 12<SP>1</SP> is provided with a tyre inflation valve. In both embodiments the device 25 may have a protective cap, e.g. 50<SP>1</SP>, which is ejected on movement of the actuating member. The system may, as illustrated by Fig. 1, be applied to a dual wheel and tyre assembly.
Patent GB-846728-A (GB)
Title: Improvements in or relating to processes and machines for liquid-coating metal articles
Inventor: STUCHBERRY ARTHUR LESLIE
IPC: B05C9/14
Filed: 1957-03-11
Abstract: Metal articles such as flat sheets or openended cans to be coated or lacquered in succession are moved in a predetermined path and are subjected over their whole surface, as <PICT:0846728/III/1> an immediate preliminary to the coating process, to treatment with a flame which is directed except when an article is presented for treatment.  As shown, tinplate sheets delivered in succession from a stack by a belt conveyer 1 on to a second conveyer 2 pass during transfer through a flame 6 issuing from a transverse line of downwardly and forwardly directed nozzles 5 mounted on a manifold 4. The sheets then pass for lacquering to a third conveyer 3 beneath hot air nozzles 17 in a manifold 16 connected by a pipe 15 with a blower 14.  In the intervals between the delivery of successive sheets the flame 6 is deflected from the conveyer 2 by hot-air jets issuing from a perforated pipe 9, the air being delivered to the pipe through a helical copper tube 11 heated by the deflected flame.  The air jets serve also to heat the underside of the sheets during flaming.  One or more rollers 7 guide the tail ends of the sheets.  The conveyers 1, 2 may be on the same level, the conveyer 2 being perforated or of wire mesh to permit delivery of the hot air therethrough.
Patent GB-410947-A (GB)
Title: Improvements in rock drills
IPC: E21B10/38
Filed: 1933-03-16
Abstract: 410,947. Percussive drills. ERICKSON, C., Kirkland Lake, Ontario, Canada. March 16, 1933, No. 7995. Convention date, July 28, 1932. [Class 124.] A replaceable tip 15 of a drill steel is held in a dovetail slot formed in the end of the shank. Recesses 17, 18 at the base of the slot allow clearing water to pass from the central bore of the steel to clear the bore hole.
Patent GB-1383266-A (GB)
Title: Ship propulsion systems
IPC: B63H23/16
Filed: 1973-02-19
Abstract: 1383266 Marine propulsion MANNESMANN-MEER AG 19 Feb 1973 [18 Feb 1972] 8023/73 Heading B7V [Also in Division F2] A ship's main engine 1 normally drives a propeller shaft 4 through a main gear system 3 and drives an electrical generator 12 through the constant speed output shaft 13 of an auxiliary gearing system 8. The shaft 13 achieves constant speed only over a particular range of main engine speeds, and if the main engine speed falls outside this range a clutch 6 is disengaged and an auxiliary engine 11 is used to drive the generator 12. If the main engine fails, the auxiliary engine 11 can drive the propeller shaft 4 through the gear systems 8 and 3; in this ease the current supply to the ship is provided by an emergency power facility. When the ship is in harbour the generator 12 is driven by the auxiliary engine 11.
Patent GB-1420138-A (GB)
Title: Apparatus for separating and stackaing blanks
IPC: B65H35/10
Filed: 1973-02-19
Abstract: 1420138 Sheet ordering apparatus; feeding sheets J BOBST & FILS SA 19 Feb 1973 [7 March 1972] 8093/73 Heading B8R General.-Interconnected box blanks are separated into individual blanks by a bursting apparatus comprising an input conveyer and a more rapidly moving bursting conveyer, the separated blanks then being directed into a series of stacks by a plurality of diverters. Busrsting apparatus.-Sheets of interconnected box blanks formed in a platen press 7, Fig. 2a, are forwarded from a slower moving conveyer 10 (where they are held in contact with the conveyer by a pressing device 13) to a more rapidly moving conveyer 15 upon which the blanks are held by co-operating belts 21. Transverse rows of blanks are thus separated from the sheets and the individual blanks are then separated laterally by the diverging runs of belts 15 and 21. Directing to alternative outlets.-Longitudinal rows of blanks are forwarded into diverter assembly 26 between a plurality of roller pairs 29, 30 and 31, 62 until one blank is above each of a plurality of accumulator chambers 32, Figs. 3 and 9. The rollers 31 are then simultaneously pivoted, Fig. 10a, to direct blanks beneath the guides 64 and into the chambers 32. The pivoting of the rollers 31 is controlled from photocells 28. Forming distinguishable batches.-When a predetermined number of blanks has been accumulated in each of the chambers 32 (as determined by a stack-height detecting photocell) the bottom of each chamber is withdrawn and the small stacks are added to the main stacks on a descending table 34. Between each delivery of small stacks a separating sheet 37 is applied across all the main stacks by a conveyer mechanism 36 which mechanism comprises a conveyer belt 41, Figs. 7 and 8, carried on reciprocable racks 40. The racks are moved to a position overlying the main stacks with a separating sheet carried on the upper run of conveyer 41 and are then returned to their initial position over a supply pile 80 whilst the conveyer 41 is advanced to discharge the sheet. Feeding sheets.-Sheets are separated from the pile 80 by a suction cup 50 which is raised and lowered by a cam surface 49 on one of the racks 40.
Patent GB-913204-A (GB)
Title: 16ª--bromo-í~-pregnene-diol-(3ª-:17ª-)-one-(20)-formate-(3ª-) and a process for the manufacture of a í~-pregnene-diol-(3ª-,17ª-)-one-(20)-formate-(3ª-)
IPC: C07J5/00
Filed: 1959-03-09
Abstract: The invention comprises 16b -bromo-3b ,17a -dihydroxy-D 5-pregnen-20-one 3b -formate and the preparation of a 3b ,17a -dihydroxy-D 5-pregnen-20-one 3b -formate by esterifying 3b -hydroxy-16,17-epoxy-D 5-pregnen - 20 - one with a mixed anhydride of acetic acid and formic acid in the presence of a tertiary organic base to form a 3b -hydroxy-16,17-epoxy-D 5-pregnen-20-one 3b -formate, treating the formate with hydrogen bromide in the presence of formic acid to form a 16-bromo-3b ,17a  - dihydroxy - D 5 - pregnen-20-one 3b -formate, and hydrogenating the last mentioned compound in the presence of a hydrogenation catalyst.
Patent GB-1168208-A (GB)
Title: Improvements in Method of Forming a Fine Line Apertured Film
Inventor: CHEN ARTHUR CHIH-MEL
IPC: H05K3/04
Filed: 1968-02-20
Abstract: 1,168,208. Etching. GENERAL ELECTRIC CO. 20 Feb., 1968 [14 March, 1967], No. 8238/68. Heading B6J. A film is formed with fine line apertures by etching the partially marked film 10 to undercut the masking 14 depositing an additional film 22 on and extending beyond the edge of the masking overlying the undercutting 18, and stripping away the masking and the portion 24 of the additional film overlying the masking. The film may be secured to a substrate 12, e.g. glass. The masking may be a photoresist and stripped after softening in organic solvent. A seeding film may be deposited on the substrate before the additional film to enhance the adhesion of the latter, and also a seeding film may be used to enhance the adhesion of the first film to the substrates. The films may be tin and the etchant hydrochloric acid and nitric acid. In one example, a tin seeding film is covered with a lead film and a further tin film to inhibit oxidation. The upper tin film is etched with hydrochloric acid and nitric acid and the lead film with acetic acid and hydrogen peroxide. The exposed part of the lower tin film is then removed with hydrochloric acid and nitric acid. The additional film is also tin. In another example, the seeding film is nickel and the upper film is gold. The gold is etched with a gold-etchant and the nickel with furic chloride. The additional film is a laminate of gold on chromium.
Patent GB-495871-A (GB)
Title: Device for protecting rooms particularly in mines or ships against sudden inrush of water
IPC: E21F17/00
Filed: 1937-03-22
Abstract: 495,871. Door-operating appliances; door holders. SCHWEFEL, J. March 22, 1937, No. 8340. Convention date, March 21, 1936. [Class 65 (i)] A device for holding open a door, for example in a ship or a mine, and releasing and closing it on the entrance of water, outbreak of fire, or other abnormal condition, comprises a pivoted catch lever 2 engaging a member 4 on the door and power-operated means for releasing the catch-lever and closing the door. In the arrangement shown, an electric motor 14, set in motion by means responsive to the abnormal condition to be guarded against, drives through gearing and a friction clutch a cam 20, which engages a lug 23 on the lever 2 to free the door, and a crank 12 which actuates a push-rod 5 having a roller 6 engaging the door to close the latter; the door may be weighted or otherwise arranged to be self-closing during the last part of its movement, the device then serving only to start the closing. As the cam rotates anticlockwise, after raising the lefthand end of the lever 2 to free the door, this lever drops on to a stop 10, so that a pin 24 on the cam 20 engages the lug 23 to stop the mechanism after one revolution, the clutch permitting overrun of the motor, which is switched off by the door reaching the closed position or other means ; the lever 2 has to be reset by hand.
Patent GB-127093-A (GB)
Title: Improvements in Dish Washing and Dish Drying Machines.
Inventor: SNAPE RICHARD HOWARD
IPC: A47L15/06
Filed: 1918-05-21
Abstract: 127,093. Snape, R. H., and Davidson, F. L. May 21, 1918. Plates, dishes, and the like, washing. - A machine for washing and subsequently drying plates, dishes, &c. comprises a chamber 8 fitted with a removable wire tray 53 with wire racks 55 supporting the articles, a trough 15 containing water supplied from a boiler 17, and a removable paddle-wheel or splasher 23 rotated by hand or by a motor. The trough 15 slopes from each end to a central discharge pipe 16, normally closed, and the boiler 17 communicates with the trough by way of a valve 20, Fig. 5. A reservoir 18<1> supplying fuel to a burner 18 may be fitted, or gas or electricity may be employed as the heating-medium. The paddlewheel is formed with longitudinal blades 33 having one face radial and the other face partly radial and partly tangential, as shown in Fig. 3, so that a more violent splashing is obtained when the wheel is rotated in an anti-clockwise direction than in the reverse direction. The axle 24 of the wheel at one end is formed with a tongue which is held in a recess in a separate shaft 28 by a sleeve 29 pressed into the locking position by a spring 30 but adapted to be held in the unlocked position by a bayonet-catch, to allow the wheel to be removed. The shaft 28 is driven by toothed gearing from a countershaft 37 fitted with a pulley 42 for direct motor drive, and with a pulley 44 for belt drive from a handled shaft 47. In operation, the articles are fitted in the tray which is then placed on a support 54 in the chamber 8. Water from the boiler is admitted to the trough, and the wheel 23 is rotated to throw the water on to the articles. The water is then discharged and the wheel is rotated so as to circulate air around the articles to dry them.