baber/WOPTO huggingface dataset:
Patent GB-741667-A (GB)
Title: New pyrimidine derivatives
Inventor: HULL ROY
IPC: G03C1/34
Filed: 1952-12-05
Abstract: The invention comprises compounds of formula <FORM:0741667/IV(a)/1> wherein R and R1 are hydrogen or alkyl radicals and may be the same or different or may be united to form with the adjacent nitrogen atom a heterocyclic ring, and R2 is hydrogen, a hydroxy group or an alkyl radical.  The compounds are prepared by heating a pyrimidine derivative of formula <FORM:0741667/IV(a)/2> (1) with chloral and hydrolysing the resulting 5 - (2:2:2 - trichloro - 1 - hydroxyethyl) derivative in alkaline medium; or (2) with chloroform in presence of an alcoholic solution of an alkali metal hydroxide.  The examples describe the preparation of 4:6 - dihydroxy - 5 - formyl - 2-piperidinopyrimidine and the 2:4-dinitrophe-nylhydrazone thereof, 4 - hydroxy - 5 - formyl-6 - methyl - 2 - di - n - butylaminopyrimidine and the semicarbazide and 2:4-dinitrophenyl-hydrazone thereof, 2 - amino -, 2 - methyl-amino -, 2 - dimethylamino -, 2 - piperidino-and 2 - hexamethyleneimino - 4 - hydroxy - 5-formyl-6-methylpyrimidine. 2 - Methylamino -, 2 - dimethylamino -, 2 - di - n - butylamino -, 2 - piperidino - and 2-hexamethyleneimino - 4 - hydroxy - 5 - (2:2:2-trichloro - 1 - hydroxyethyl) - 6 - methylpyrimidine are prepared as intermediates by process (1).  4:6 - Dihydroxy - 2 - piperidinopyrimidine is prepared by refluxing a mixture of guanylpiperidine sulphate, diethyl malonate and sodium in ethanol, and precipitating an aqueous solution of the product with hydrochloric acid.  2 - Di - n - butylamino - and 2 - hexamethyleneimino - 4 - hydroxy - 6 - methylpyrimidine are prepared by refluxing 4-hydroxy-6-methyl-2 - methylthiopyrimidine in b  - ethoxyethanol with di-n-butylamine and hexamethyleneimine respectively.
Patent GB-1024567-A (GB)
Title: Electrochemical machining
IPC: B23H3/00
Filed: 1963-08-06
Abstract: <PICT:1024567/C6-C7/1> <PICT:1024567/C6-C7/2> An electrolytic machining tool for removing a cylindrical layer of material from a work-piece comprises a tool body having a machining surface symmetrical about an axis and of circular cross-section normal to said axis with concentric circular edges of different diameter in spaced parallel planes, the tool body being provided with electrolyte circulating passages terminating in openings extending along said edges and a passage terminating in an opening between said edge openings.  As shown in Fig. 1, the tool 110 is designed for accurately enlarging a pilot hole 112 in a stationary work-piece 111 by progressive movement through it and electrolyte is supplied via a conduit 36 and passages terminating adjacent tool edges, 118, 119, discharged electrolyte escaping past insulating ring 124 and the insulating tool tip 116a and through groove 120 between the edges 118, 119 and passages 121, 122.  Fig. 4 shows a tool 130 for reducing the outer diameter of a work-piece 131, electrolyte inlet conduits 136, 137 feeding passages terminating adjacent the trailing edge of inclined operating zone 133 and the leading edge of operating zone 144, electrolyte escaping over tool edges 134, 135 and via discharge passage 145 and outlet 146.  The tool 130 is fixed and the workpiece is advanced through it.
Patent GB-959836-A (GB)
Title: Improved explosive charges
Inventor: GREBE CARL ERIC
IPC: F42D1/00
Filed: 1960-09-08
Abstract: 959,836. Blasting devices. DOW CHEMICAL CO. Sept. 8, 1960, No. 30952/60. Addition to 951,620. Heading F3A. A tamping plug for boreholes, which is placed near or in contact with an explosive charge, is a saucer-shaped disc 11 with a thickened rim 12 from opposite sides of which annular flanges 14, 16 respectively, project. A central opening 21 is surrounded by a reinforcing rim 19. Equally spaced openings 22, provided in the disc, extend from near the rim 12 to the neighbourhood of rim 19 and each subtends an angle of 20 degrees at the centre of opening 21. Opening 21 is intended to receive a detonator, which may contain a shaped charge orientated with the axis of its cavity coaxial with the disc. Preferably the disc is made by sand-casting, stamping, deep drawing, mould casting, die casting or forging from a light metal such as magnesium, aluminium, magnesium alloy or aluminium alloy.
Patent GB-174462-A (GB)
Title: An improved safety starting device for internal combustion engines
IPC: F02N1/02
Filed: 1920-11-03
Abstract: 174,462. Argue, R. A. Miller-. Nov. 3, 1920. Turning-gear.-A starting-device which is disengaged if the engine starts backwards comprises a starting-shaft 6 on which are fixed a handle 8 and a clutch member 31 with peripheral projections 36 for engagement with adeclutching member 22 supported rearwardly of the clutch. During starting, the curved faces 38 of the projections 36 ride under the member 22. If the engine starts backwards, the head of the member 22 drops in front of the inclined face 37 and causes the axial disengagement of the clutch 31 from the clutch member 3 on the engine shaft 2. The member 22 is pivoted on a bracket 11 on the bearing for the starting-shaft, lugs 18, 19 being provided to limit the movements of the member 22. The engaging end of the member 22 has an inclined face 27, Fig. 5, or a roller 46, Fig. 8, for engagement with the face 37 of the projection 36, and a bevelled rear edge 29 to facilitate riding over the curved face 38. The disengaging movement of the clutch 31 is cushioned by a spring 41 lighter than the spring 9.
Patent GB-707548-A (GB)
Title: Suspension polymerisation process
IPC: C08F2/18
Filed: 1950-12-21
Abstract: Unsaturated compounds containing a CH2= C< group in the molecule are polymerized in suspension in an aqueous medium with the use of a substantially neutral calcium oxalate as a suspension stabilizer. Unsaturated compounds specified are methyl methacrylate and styrene, which latter may be copolymerized with a minor proportion of another unsaturated compound containing a CH2=C< group such as acrylonitrile or divinyl benzene; the divinyl benzene used may be in the form of a concentrate containing a substantial proportion of ethyl vinyl benzene, and also containing tert. butyl catecohol as an inhibitor. The process may also be applied to the production of high impact strength polystyrene by polymerizing styrene which contains a minor proportion of a natural or synthetic rubber dissolved therein. Polymerization is preferably carried out in the presence of a catalyst such as benzoyl peroxide or tert. butyl perbenzoate, and the aqueous medium may contain gelatin in addition to the calcium oxalate dispersing agent.  The polymerization products are in the form of hard beads.
Patent GB-773059-A (GB)
Title: Machine for trueing or smoothing wooden poles or posts and like timber
IPC: B27C7/00
Filed: 1955-11-01
Abstract: 773,059. Planing wood. BUEN, A. A., and HAUGRUD, J. Nov. 1, 1955 [Nov. 4, 1954]. No. 31230/55. Class 145  A machine for trueing and smoothing wooden poles 1 or posts comprises a rotary cutter 6 of conical or double shape on a frame 8 which is pivotable about bearings 10 by an eccentric device 11 and hand wheel 12 to bring the cutter down on the pole to trim out irregular or bent portions; the cutter may be traversable along the length of the pole or the pole may be mounted on one or more carriages 2 running on rails 4 and the pole may be held on one of the carriages and rotated by a claw device 5 operable by a hand wheel 13. In order that the wood removed may be divided into small chips, the cutting edges of the cutter may have spaced notches along their length or consist of short knives distributed over the working surface.
Patent GB-1400075-A (GB)
Title: Cultivators
IPC: A01B33/06
Filed: 1972-07-04
Abstract: 1400075 Soil cultivating implements C VANDER LELY NV 4 July 1972 [8 July 1971] 31309/72 Heading A1B A soil cultivating implement comprises a row of tined soil working members 5 which are oscillated about vertical axes so that their tines 9 oscillate along arcuately curved paths, each soil working member 5 turning in the opposite direction to its immediate neighbour(s) at any time. In Figs. 1 and 2, the soil working members 5 are carried by shafts 3 so that the tines 9 overlap, each shaft 3 being secured to an arm 11 carrying a shaft 12 by which the soil working members 5 are alternately pivoted to one or other of two connecting rods 16 and 17. An arm 21 links the connecting rods 16 and 17 so that they are moved in the same direction by a crank rod 19 and rotating crank 37. The shaft 36 of the crank 37 is rotated by a bevel gear box 35 connected by via shaft 42 and a telescopic shaft (not shown) to the power take-off shaft of a tractor &c. The implement may be connected to the three-point lifting device of the tractor by means of a coupling frame 26, and other implements or tools may be secured to the implement by means of a coupling member 27. The depth of penetration of the tines 9 is determined by the setting of the roller 47 by pins 48 and holes 49. In Figs. 3-5 (not shown), the connecting rods are disposed one above the other and forward of the shafts 3 of the soil working members 5. The connecting rods are moved in opposite directions by two separate crank rods linked to cranks 180 apart on the gearbox shaft.
Patent GB-306860-A (GB)
Title: Improvements in articulated motor driven vehicles
IPC: B60K17/36
Filed: 1927-11-22
Abstract: 306,860. Jackson, W. Nov. 22, 1927. Wheels, arrangement of; springs, arrangement of.-A motor fore-carriage a is connected by pins i and springs j at each side to a frame mounted on four driving wheels t, u. The frame carries a fifth wheel 5, 6, on which is mounted one end of a body-carrying trailer e. The wheels t, u are mounted on short axles r, s carried by frames q secured to lateral shafts l, each of which is bolted to a pair of suspension springs. Adjustable radius rods 2 are fitted between the shafts c and axles r.
Patent GB-602841-A (GB)
Title: Process and apparatus for charging and storing materials
IPC: A23L3/3418
Filed: 1945-11-21
Abstract: 602,841. Storing ground hay, grain, &c. AMERICAN DAIRIES, Inc., and QUAKER OATS CO. Nov. 21, 1945, No. 31363. Convention date, Feb. 17. [Class 49] [Also in Group XXX] In storing powders, small grains and particles liable to deterioration in air or oxygen, e.g. ground dried grass or alfalfa, grain, ground corn cobs, coffee, the material is passed, e.g. by screw conveyers 16, through an enclosed duct 14 having an inlet 13 and an outlet 18, an inert gas is introduced into the duct, e.g. carbon dioxide under pressure in a reservoir 17 is led in by way of a pipe 50, the material is compacted in the duct before its discharge therefrom, e.g. with the aid of a cover 55 pressed towards the outlet of the duct by means of a spring 54, is then passed through an enclosed passage 21, 22 into a storage vessel in which the air has been replaced by an inert gas, e.g. by the introduction of carbon dioxide from the reservoir 17 by way of the pipe 48, and the inert gas is maintained in the storage vessel during the storage period. Discharge of the material from the storage vessel is preferably effected through an enclosed outlet passage in which the material is compacted in order to prevent ingress of air to, and escape of inert gas from, the vessel, and emptying of the storage vessel may be facilitated by a screw conveyer rotatable on its axis and also pivoted at its end in the centre of the vessel for sweeping over the bottom of the vessel.
Patent GB-1520338-A (GB)
Title: Polymers of high impact resistance
IPC: C08F291/02
Filed: 1976-07-28
Abstract: 1520338 Suspension polymerization process SUMITOMO CHEMICAL CO Ltd 28 July 1976 [30 July 1975] 31439/76 Heading C3P A polymer resin is prepared by coagulating a latex of a rubbery polymer by the use of a coagulating agent in the presence of a suspension stabilizer to form a stable aqueous suspension of coagulated particles of the rubbery polymer, adding at least one ethylenic monomer to the aqueous suspension and subjecting the resulting mixture to suspension polymerization to form a resin of high impact resistance. Examples are given in which the rubbery polymer is selected from a graft ABS resin, styrene-butadiene rubber, or a mixture thereof, or a (n-butyl acrylate/methyl methacrylate/ethyleneglycol dimethacrylate/triallyl cyanurate)copolymer and the monomer from styrene, or a mixture thereof with acrylonitrile or methyl methacrylate.
Patent GB-230554-A (GB)
Title: Improvements in or relating to tennis and other inflated balls and to the manufacture thereof
IPC: A63B39/06
Filed: 1923-12-15
Abstract: 230,554. Dunlop Rubber Co., Ltd., and Penfold, A. E. Dec. 15, 1923. Balls.-Tennis and like balls are provided with an outer covering comprising three or more plies of closely wound strands or cords of textile material, the winding of each ply being so disposed that its principal axis intersects that of at least two of the others at the centre of the ball and at right-angles thereto. As shown, the usual inflated core 1 is covered by three windings 4, 5, 6 the axes of which are mutually at right-angles. The windings are preferably of rubbered cord and are insulated from each other by layers 7 of rubber or other material. The outer winding 6 may be covered by a Jayer of rubber, or may be treated to give it the appearance of felt.
Patent GB-1411285-A (GB)
Title: Radiation pyrometers
IPC: G01J5/00
Filed: 1972-07-06
Abstract: 1411285 Radiation pyrometer using storage mode detection ROLLS-ROYCE (1971) Ltd 29 June 1973 [6 July 1972] 31585/72 Heading G1A In a pyrometer using "storage mode detection" with a photo diode, radiation from a selected part of moving turbine rotor blade is received by a photo diode 14 which is charged at least once per revolution of the blade by means of a trigger pulse which is passed via a variable delay 23 and a pulse shaper 16 to a detector reset pulse generator thereby providing a pulse for charging the photo diode. When the photo diode receives radiation the resulting current flow discharges the photo diode 14 and the voltage across the photo diode 14 can be sampled at two points in time in each cycle by means of two sets of a delay circuit 17 or 18 and a sample-and-hold circuit 20 or 21. The difference between the two voltages, which is proportional to the temperature of the part of the blade being investigated, is determined by a differential amplifier 22 and displayed by an oscilloscope 25 and/or a recorder 26 or it may be used to activate an alarm by means of control 27. The delay circuit 23 is used to determine the part of the blade of the turbine being investigated and to provide a temperature profile if the amount of the delay is varied with time.
Patent GB-256843-A (GB)
Title: Improvements in moulding apparatus for dental plates
IPC: A61C13/16
Filed: 1925-12-15
Abstract: 256,843. Sachs, F., and Heko-Werk- Chemische Fabrik, Akt.-Ges. Dec. 15, 1925. Dental flasks.- A mould for celluloid dentures comprises an upper half mould A provided with aligning pins g fitting recesses in the lower half mould B, each half mould being in two parts a, b connected together by tapered pin joints d, the pins in the upper mould being larger than those in the lower mould so that the pins in both moulds can be pushed out from below. Cover plates e, with concave undersurfaces f are fitted to the top and bottom of the closed mould. In a modification the cover plates have tapered lateral flanges sliding on to similarly shaped edges on the moulds.
Patent GB-965761-A (GB)
Title: Variable capacity gear pumps or motors
IPC: F04C14/00
Filed: 1960-09-15
Abstract: 965,761. Gear pumps and motors. W. REINERS, and G. WIGGERMANN. Sept. 15, 1960 [Sept. 23, 1959], No. 31803/60. Heading F1F. A variable capacity intermeshing gear pump or motor comprises two identical three wheel gear trains, each having identical outer wheels with one a driving or driven wheel and an intermediate adjustable wheel, the two gear trains being connected parallel in drive and hydraulically in series with adjusting elements for the intermediate wheels coupled together so that at zero pump or motor capacity the outer wheels of each train are equally spaced from the associated intermediate wheel and on actuation of the adjusting elements the spacing of the driving or driven wheels of the two trains are oppositely varied with the delivery direction determined by that driving or driven wheel having the greater spacing from the intermediate wheel. As shown in Fig. 1, housings 1, 1<SP>1</SP>, house respectively gear trains 2, 3, 4, 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP>. The gears 2, 2<SP>1</SP> being mounted on a common driving shaft 5 and the gears 3, 3<SP>1</SP> on parallel shafts 6, 6<SP>1</SP> oppositely offset with respect to a plane including the centre lines Z, Z of the housings by means of cranks 11, 11<SP>1</SP>. The shafts 6, 6<SP>1</SP> are interconnected by cranks 8, 8<SP>1</SP> and a pushrod 9 and operable by a lever 10 which is movable from a mid position in which the distances between the axis of each intermediate gear and the axes of its associated outer gears are equal to a position in which one intermediate gear is moved closer to the driven gear and farther away from its other gear and the other intermediate gear farther away from the driven gear and closer to its other gear. The housings 1<SP>1</SP>, 1 include conduits 12, 12<SP>1</SP> connected to a cylinder to be operated and an interconnecting conduit 13 which receives make-up liquid from a tank 16 through a non-return valve 14. An overpressure valve is also fitted which returns surplus liquid to the tank. Assuming lever 10 moved to + V MAX position and the conduit 12<SP>1</SP> receiving liquid from the cylinder, the gear 3 is moved towards the gear 4 and the gear 3<SP>1</SP> towards the gear 2<SP>1</SP> so that operating liquid passes from the conduit 12<SP>1</SP> to the conduit 13. Since flow in this direction drives the free outer wheel 4<SP>1</SP> hydraulically the tooth flanks from the outer wheel 4<SP>1</SP> are lifted from those of the intermediate wheel 3<SP>1</SP> and there is very little increase in pressure. The liquid then passes from the conduit 13 to the conduit 12 between the wheel 3 and the positively driven gear 2 with considerable increase in pressure. For flow in the opposite direction the lever 10 is moved towards the -V MAX position. In a modification, the shafts 6, 6<SP>1</SP> are in axial alignment with each other and interconnected by gearing to move the intermediate gears in opposite directions.
Patent GB-670226-A (GB)
Title: Improvements in or relating to electric-motor driven pumps
IPC: F04D29/22
Filed: 1949-12-12
Abstract: 670,226. Centrifugal pumps. SELFPRIMING PUMP & ENGINEERING CO., Ltd., MEREDEW, G. C., and STEVENS, G. C. May 24, 1950. [Dec. 12, 1949] No. 31891/49. Class 110(i). In an aircraft fuel pump of the kind in which the pump and its driving motor are secured to the inner face of a cover plate for a hole in a fuel tank so as to be submerged in the fuel, there is a gear connection between The motor and the pump. In one construction, Fig. 3, the driving motor 36 drives the impeller shaft 14 through bevel gears 52, 56, which are housed in a chamber 48 which is sealed by a bellows gland 22 from the impeller chamber and packed with lubricant. The main impeller 12 is fed by a screw impeller 15. Entrained gases or vapours are returned to the tank through a passage 134. A vent 58, fitted with a non-return valve, is connected by way of a pipe 60 to a sump 62, which drains to the outside of the fuel tank 40 by way of ducts 64, 66, 68, 70. The pump can be byepassed by means of a flap valve leading from the tank to the pump discharge. The pump and motor are attached to a cover plate 38 for the bottom of the' tank. The motor may have an extra winding to provide a higher speed for a short time, as when supplying reheat fuel to a gas turbine or jet propulsion engine. In a modification, the socket for the electrical connections to the motor also provides a pressure balance connection to the motor casing, which is sealed from the tank. In a further modification, the cover plate is attached at an opening in the side of the tank. In the construction shown in Fig. 10, a motor 146 drives a pump 142 through gears 152, 150 and idler gear 154. The motor is supported by a flange 149 from the pump, which in turn is attached by bosses 144 to a cover plate 140. The Provisional Specification describes an arrangement in which the motor shaft is geared to a layshaft parallel to the pump axis, with a right angle drive from the layshaft to the pump shaft. The gear on the pump shaft is of inverted cup form, fitting over the upper shaft bearing. The cover plate may be dished to form a sump for the pump inlet. One of the brackets by which the pump is attached to the cover plate may be tubular to form a conduit for the electrical connections. There may be a relief valve at the outlet. Specifications 607,830, 626,272 and 635,419 are referred to.
Patent GB-866156-A (GB)
Title: Improvements in or relating to roofing and/or methods of and/or apparatus for makingsame
IPC: E04D15/06
Filed: 1959-09-18
Abstract: 866,156. Collapsible spindles. ALUMINIUM DISTRIBUTORS Ltd: Sept. 18, 1959 [Nov. 25, 1958], No. 31936/59. Class 100(1) [Also in Groups X and XXIII An adjustable spindle has an axle shaft 10 provided with a right hand threaded portion 10b and a left hand threaded portion 10c intermediate of which between collars 97 is rotatably mounted a centre disc member 93. Outer disc members 94 and 94a are screwed on to the threaded portions 10b and 10c. Blade members 99 engage in slots in the discs and the blades are urged towards the inclined bases of the slots by coil springs 103 connected to the shaft. Central lugs 101 on each blade prevent any lateral movement of the blade while permitting radial movement within the slots. By holding the centre disc member stationary and rotating the shaft the outer disc members are moved outwardly along the shaft causing radial retraction of the blades to enable the spindle to be introduced into a roll core whereupon the spindle parts are again manipulated to project the blades outwardly with engagement with the core walls.
Patent GB-438684-A (GB)
Title: Improvements in power presses or like machine-tools
IPC: B30B15/10
Filed: 1934-11-07
Abstract: 438,684. Friction clutches. HERBERT, Ltd., A., Canal Road, Edgwick, Coventry.- (Maschinenfabrik Weingarten Vorm. HCH. Schatz Akt.-Ges. ; Weingarten, W³rtemberg, Germany) Nov. 7, 1934, No. 31993. [Class 80 (ii)] [See also Group V] In presses the operating shaft is driven through the medium of a multi-plate clutch, the unclutching movement bringing into operation a multi-plate brake which stops the press. As shown, toggle levers 19, actuated by means of an inclined surface 21, transmit movement to a presser plate 17 of a multiple-plate clutch. The surface 21 is on an actuating rod which extends through the main operating shaft to the other side of the machine where it has a similar inclined surface for operating toggles and brake plates in a casing 24. The actuating rod is operated by a single control 25, the movement being timed so that the brake is applied just after the clutch is released. In a modification the clutch and brake are both mounted on the same side of the flywheel.
Patent GB-226041-A (GB)
Title: Improvements in coiled springs for use in mattresses and other purposes
IPC: A47C23/053
Filed: 1923-12-21
Abstract: 226,041. Brookes, J. B. Dec. 21, 1923. Helical springs.-In upholstery springs of the kind described in Specifications 15941/10 and 164,821, wherein one or more of the coils are provided with radially extending loops or kinks which form an anchorage for link members by which a number of springs are connected together and to upholstery frames, each loop 2 is formed by bending the wire into a completely annular ring. Preferably, there are four of such loops, and they may project radially outwards or inwards of the coil. The end of the coil may be anchored in one of the loops. The spring arrangement for a mattress is shown, wire links 5 and rings 6 connecting the springs and outer V- shaped links 7 being connected to eye members 8 and springs 10 secured to the outer frame 9.