baber/WOPTO huggingface dataset:
Patent GB-681224-A (GB)
Title: Apparatus for controlling the injection of liquid fuel to internal combustion engines
Inventor: DOWLING ERIC WILLIAM
IPC: F02M69/12
Filed: 1950-05-05
Abstract: 681,224. Speed governors. LUCAS, Ltd. J. April 18, 1951 [May 5, 1950], No. 11139/50. Class 57 [Also in Group XXVII] In an internal-combustion engine having a fuel distributer 2 provided with means responsive to intake pipe suction for controlling the fuel supply, the supply of fuel is temporarily interrupted at excessive suction and the control means is temporarily put out of action so that it can assume a position of maximum fuel delivery. Fuel is supplied through pipes n, 3, to the distributer 2 which comprises a rotary ported member 5, controlling the delivery ports 4, with a shuttle valve 7 therein reciprocated by the fuel pressure through a stroke which is varied by a stop 9 adjustably positioned by a lever 10 controlled by a suction-actuated 'piston 14. Under normal suction conditions a spring-loaded suction-actuated valve f carried by a diaphragm d is seated at h, whereby pipes d, w, are interconnected through a chamber c to transmit suction to the piston 14 for the normal control of the fuel supply. At excessive suction conditions the valve f is moved to a second seat i, causing a plunger to move a diaphragm k to shut off the fuel supply and cutting off the suction to the pipe w which is connected to atmosphere through a passage u. The piston moves to the right to set the stop 9 in a position in which, when normal suction conditions return and the fuel supply is resumed, the fuel control is set for maximum delivery and temporary weakening of the mixture is avoided.
Patent GB-233141-A (GB)
Title: Improvements relating to locomotive smoke-box doors
IPC: F23M7/00
Filed: 1924-05-07
Abstract: 233,141. Almond, M. May 7, 1924. Doors.-Relates to a locomotive smoke-box door of the kind comprising a front plate a and a baffle-plate b joined together around their peripheries to a hollow door, the front plate having apertures to admit air to the space between the plates for the purpose of cooling the door, and consists in providing a stationary or movable air inlet g in the upper portion of the plate a and two air outlets, of which one k<1> is shown in Fig. 2, in the lower portion of the plate a, the outlets being covered by cowls. A central airtight tube d is provided for the usual snecker bolt e.
Patent GB-1261217-A (GB)
Title: Camera objective with continuously variable focal length
IPC: G02B15/14
Filed: 1969-03-03
Abstract: 1,261,217. Zoom lenses. AGFA-GEVAERT A.G. March 3, 1969 [March 8, 1968], No. 11237/69. Heading G2J. A wide aperture zoom lens consists of ten elements arranged as shown in four lens groups the first I, third III and fourth IV of which refract positively, and the second II negatively, the second being movable to vary the focal length and the first being simultaneously moveable to maintain a constant image position. Optical data for the objective is given.
Patent GB-1183662-A (GB)
Title: Improvements in and relating to Diffusion Vacuum Pumps.
IPC: F04B37/08
Filed: 1968-03-07
Abstract: 1,183,662. Diffusion pump baffles. BALZERS PATENT-UND BETEILIGUNGS-A. G. March 7, 1968 [March 14, 1967], No. 11247/68. Heading F1E. A diffusion pump baffle comprises a cooling block 4, e.g. of copper, with baffle plates 5, 6, 7, and incorporating a water cooling circuit 9, 10, 11 and a below-zero centigrade, e.g. liquid nitrogen, cooling circuit 12, 13, 14, the arrangement being such that, when the liquid nitrogen circuit is operating, the water circuit is frozen, and when the liquid nitrogen circuit is inoperative, intentionally or unintentionally, the water circuit thaws and becomes operative again. The circuits are disposed such that freezing of the water circuit starts at point 9 and extends outwardly. A screen 8 is carried by block 4 to overlap the uppermost nozzle hood of the diffusion pump. The baffle casing 1 has flanges 2 and 3 for connecting it to the diffusion pump and evacuated vessel, respectively.
Patent GB-1353755-A (GB)
Title: Extensible helically coiled fibre optic assembly
IPC: G02B6/44
Filed: 1971-04-26
Abstract: 1353755 Dental illuminating instruments VICON PRODUCTS CORP 26 April 1971 [6 May 1970] 11377/71 Heading A5R [Also in Division G2] Light from a lamp in box 12 is carried by optical fibre assembly 10 to to the end 22 of dental pick 18. The optical fibre assembly comprises a sheath of elastic material, e.g. rubber, PVC, polyethylene, which has been set, e.g. by heating, vulcanisation, curing, or irradiation, while in a helical shape, and a plurality of optical fibres, e.g. of glass, disposed within the sheath, the fibres being sufficiently flexible to permit the assembly to be extended and thereafter retracted by the forces in the elastic material tending to return it to its helical shape, without deleteriously affecting the optical characteristics of the optical fibres. The fibre bundle may be gathered at either end by a stainless steel ring attached, e.g. by epoxy resin to the fibres. These rings may be attached to the sheath, the fibres otherwise not being connected to the sheath. Silicone oil may be present on the fibres within the sheath.
Patent GB-186093-A (GB)
Title: Method and apparatus for casting steel ingots
IPC: B22D7/00
Filed: 1921-04-20
Abstract: 186,093. Marks, E. C. R., (Valley Mould & Iron Corporation). April 20, 1921. Casting processes; moulds.-Ingots particularly those of alloy and like tool steels are cast in a chill mould with one end wall formed by a heated fire clay runner. The runner 10 serves also as funnel and has a conical passage 14 communicating with two ingates 15, 17 of areas such that equal volumes of metal are delivered to the mould in streams that so impinge as to set up eddies. The mould is preferably divided on a central vertical plane, has a vent at 21, and slopes away from the ingates. Setting takes place progressively from the lower end of the mould and metal is supplied continuously from the runner to prevent the formation of a pipe.
Patent GB-1468151-A (GB)
Title: Jointing assemblies
IPC: F16B12/10
Filed: 1974-06-05
Abstract: 1468151 Panel-connecting joints SMS (WOODWORKING) Ltd 5 June 1974 [9 March 1973] 11514/73 Heading F2M An assembly for releasably joining two panels consists of male and female coupling members both of U-shaped configuration to receive its associated panel, the male coupling member 1, Fig. 3, having ribs 7 and the female coupling member 8(l), Fig. 4, having in its web a socket 15, 16, 17 to receive said male member. The coupling members are provided with holes such as 5, 11 whereby they may be attached to the panels by screws, each panel being provided with an upper and a lower male or female coupling member which is made of mild steel or injection moulded from plastics.
Patent GB-1249065-A (GB)
Title: Improvements in or relating to continuous stationery
Inventor: PERRIMAN VICTOR HERBERT
IPC: B42F19/00
Filed: 1969-03-04
Abstract: 1,249,065. Continuous stationery; card indexes. LAMSON PARAGON Ltd. 20 Feb., 1970 [4 March, 1969], No. 11538/69. Headings B6A and B6E. A continuous stationery web comprising a number of form-length parts has on each part lines of weakening 4-8 defining an enclosed area 9, one 8 of the lines of weakening forming a series of spaced apart inlet portions extending into the area 9 from a common base 11 so that when the area 9 is detached from the web along the weakened lines, the line 8 has a series of cutouts by means of which the area 9 can be assembled in spaced relationship with like areas by the engagement of the cut-outs with guide rails spaced similarly to the cut-outs. A space adjacent to the line 6 is reserved for information to be printed thereon, these spaces being visible in the assemblage of areas 9. As shown, the lines 6 are parallel to the transverse lines of weakening 3 separating form lengths, so that information can be printed on the areas adjacent to the lines during passage of web in the normal way through a print-out device.
Patent GB-1427044-A (GB)
Title: Continuous casting method
IPC: B22D11/06
Filed: 1973-03-09
Abstract: 1427044 Continuous casting; composite casting; making rod B O N HANSSON and J O B HERTSIUS 9 March 1973 [10 March 1972] 11622/73 Headings B3A B3F and B3P A hollow body 7 of solid material, e.g. of Pb, Pb alloy, Al, is continuously extruded and molten metal, e.g. Cu, of no lower m.p. than that of the body material is passed into the body and the outer surface of the body is continuously cooled so that the metal is cast in the body, to form a billet 16 either from which the body 7 may be stripped (or melted) or to which the body remains joined as an integral part. As shown Pb is melted in a vessel 1 and passed to a screw feed of an extruder 3 where it solidifies around the screw 4 before being fed to dies 5, 6 for extrusion as a pipe 7. Molten Cu is sucked, through a pipe 13, by application of vacuum to the pipe 7, into the pipe 7 from a vessel 12, to be solidified by external cooling. Both vessels 1 and 12 may have a vacuum or protective atmosphere over the molten metal and an inert or reducing atmosphere may be maintained in the mould. The pipe 7 may be oval, circular, rectangular, triangular, starshaped, sector-shaped or trilobal in cross-section or be finned. The inclination of the pipe 7 may be varied from horizontal to vertical by changing the inclination of the extruder 3 or by bending the pipe. Instead of a wholly continuous extruder 3, an hydraulic machine may be used for batch operation. Pb may be east in a Pb pipe to form a composite casting. Al, Cu and Fe are also considered for the casting and the extruding. The filling of the pipe with metal to be cast may maintaining a particular pressure difference between the interiors of the pipe and the vessel 12 and the filling may be observed by measuring the resistance between points on the outer surface of the pipe 7, by ultrasonic waves or by a cog wheel pressed against the pipe and rotating with its progress to indicate irregularities by indentations on the pipe.
Patent GB-1379125-A (GB)
Title: Regeneration of adsorbent carbon
IPC: C01B31/08
Filed: 1972-03-13
Abstract: 1379125 Regenerating absorbent carbon CALGON CORP 13 March 1972 [15 March 1971] 11657/72 Heading C1A An adsorbate is extracted from active carbon by introducing into the active carbon which contains the adsorbate, a displacing medium having a refractive index of at least 1À5 measured at 25 C. and at least equal to the refractive index of the adsorbate, the volume of displacing medium introduced into the active carbon being at least equal to the difference between the micropore volume of the carbon and the volume of the adsorbate; introducing into the active carbon either concurrently with or subsequent to the displacing medium a solvent for the adsorbate in an amount sufficient to dissolve the displaced adsorbate, and recovering the adsorbate. The displacing medium may be subsequently evacuated to reactivate the carbon. Preferably a mixture of displacing medium and solvent is introduced into the carbon. The preferred displacing medium is carbon disulphide and the preferred adsorbate is a petroleum fraction.
Patent GB-429806-A (GB)
Title: Improvements in or relating to contacts for electric fuses, switches or the like
IPC: H01H85/143
Filed: 1934-04-18
Abstract: 429,806. Switch and fuse contaots. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, London, and WOOD, H. G., Kinross, Leesons Hill, Chislehurst, Kent. April 18, 1934, No. 11671. [Class 38 (v)] Self-aligning contacts for electric switches, fuses, &c. which are adapted to engage between fixed contact jaws each consist of a stirrup part hung from a holder part, a contacting part being secured to the stirrup part and having its free ends so formed that when inserted between the jaws the ends are laterally supported or reinforced by the stirrup part. As shown in Figs. 2 and 3, the contact is supported by a stirrup 1 of steel or hard copper which is formed at its upper end 2 so as to be slid into a dovetail slot 13 in the fuse &c. holder 12, being retained therein by a plate 8 formed with a retaining tongue 10 projecting into a corresponding recess in the holder. The contacting part 3 is secured by a bolt 5 to the base of the stirrup and has its free ends bent backwardly parallel to the side of the stirrup to engage the fixed jaws 15. The tips 4 of the free ends are bent inwardly towards the stirrup so that when the fuse is forced home they bear laterally on the sides of the stirrup and provide an adequate contact pressure. Self-alignment of the contacts is assured by the loose fit of the stirrup within the dovetail slot 13. Instead of forming bent-over portions 4 of the contacting member studs or blocks may be secured to the free ends so as to bear on the stirrup when the contact is forced home. The fuse wire may be secured beneath a nut secured on the inner end of the bolt S and may pass through an asbestos tube.
Patent GB-634216-A (GB)
Title: Improvements in or relating to processes of preparing polyvinyl acetate emulsions
IPC: C08F18/08
Filed: 1947-05-01
Abstract: A polyvinyl acetate emulsion is prepared from an aqueous emulsion containing up to 40 parts by weight of vinyl acetate for every 60 parts of water, and either a water-soluble persulphate, or hydrogen peroxide in conjunction with an iron compound or a hydrogen peroxide yielding compound in conjunction with an iron compound, a hydrophilic colloid and as a surface tension depressant an alkali metal salt of a sulphated or sulphonated organic compound, the dispersion having an initial pH of not over 6.  Iron compounds specified are ferrous or ferric nitrates, chlorides, sulphates, acetates, and benzene or toluene sulphonates.  Soluble persulphates specified are those of potassium, sodium, rubidium, caesium, lithium and ammonium.  Urea peroxide is specified as a hydrogen peroxide liberating substance. Hydrophilic colloids specified are partially-hydrolyzed polyvinyl acetate, soluble starch, soluble starch degradation products, methyl ether of cellulose, water-soluble glycol cellulose, gum tragacanth, gum acacia, agar-agar, sodium alginate, gum tragon, gum arabic, glue, gelatine, hydroxy ethyl cellulose, and sodium carboxyl methyl cellulose.  As surface tension depressants are specified alkali metal isobutyl naphthalene sulphonates, di-isobutyl naphthalene sulphonates, decyl benzene sodium sulphonate, di-sulphonates of dibutyl phenyl phenol, dioctyl sulphosuccinates, and sodium lauryl sulphate.  Plasticizers such as dibutyl phthalate and triethylene glycol dihexoate may be added.  The vinyl acetate may be added gradually so as to keep the concentration below 25 parts per 100 parts of water.  The pH may be regulated by addition of various specified acids and sodium bicarbonate, which latter compound may be premixed with water and vinyl acetate and the mixture added gradually during polymerization.  The polymer particle size is very small, usually about 0.2 microns.  The emulsions may be used to coat cloth, paper, wood, metals, glass and linoleum.
Patent GB-1270832-A (GB)
Title: Apparatus for supplying slivers to cans in textile machines
IPC: B65H75/16
Filed: 1969-03-05
Abstract: 1,270,832. Coiling slivers. O-M Ltd. 5 March, 1969 [8 Aug., 1968; 8 Nov., 1968]. No. 11754/69. Heading D1F. A can 1, Fig. 1, which may be readily assembled for the coiling and compression of sliver therein and dismantled into nesting components to facilitate, conveyance when empty, comprises arcuate plates 2, with reinforcing ribs 5, arranged with openings 3 and secured by reinforcing rings 4, 4'. In the operation of coiling sliver from an overhead wheel 10 into cans, each can is supported on and rotates with a block 7 driven by ring gear 8 and worm 9. Sliver accumulates on and is compressed by a bottom plate 11 which is free to be lowered and raised in the can but held against rotation relative thereto by portions 12 projecting through openings 3. Portions 12 rest on a support plate 13 attached to chains 16 passing around pulleys 18 and secured to drums 20 driven by motor 21  through gears 22, 23, and shaft 19 so as to raise the plate 11 to the top of the can preparatory to coiling and then allow its discent under mounting pressure of the sliver against the constraint of the motor 21 during coiling. Timing cam 26 operates a switch 27 immediately before portions 12 strike the upper ring 4 so as to brake motor 21 through a voltage regulator 25, which, as a result of a signal derived from a detector 24 measuring the angle of rotation of shaft 19, also controls the torque exerted by motor 21 in  accordance with the amount of lowering of plate 11. In the operation of mechanism for automatically exchanging full cans for empty cans, Figs. 5, 6, when the can 1" becomes full, plate 13 is lowered into alignment with the machine frame surface 29. Simultaneously, a motor 53 is energised to rotate a gear wheel 51 so that a sleeve 46 and arm lever 59 integral therewith are lowered to a position whereat a limit switch 62 stops the motor 53. Divisional levers 60, 60', of lever 59 group the empty and full cans 1, 1", and then rotate with the exchange shaft 38 (driven by a motor 45) so that can 1" is urged from block 7 partly along path 35 and into a delivery path 33; the waiting can 1' is urged along path 35 onto a rotary block 7. The motor 45 is then deenergised and motor 53 energised to raise sleeve 46 and hence the arm 59 to rest position 59' whereat limit switch 61 stops motor 53. Meanwhile motor 21 runs to raise plate 13 to position 13' whereat it is below the level of the position 59' with plate 11 raised to the position 11' in readiness for the next coiling cycle.
Patent GB-492255-A (GB)
Title: Improvements in or relating to the clarification of molasses
IPC: C12N1/18
Filed: 1938-04-20
Abstract: Molasses, particularly for yeast manufacture, is clarified by centrifuging in two stages, and is diluted before the second centrifuging.  For the first centrifuging the molasses may be 40 DEG Ball. or more and for the second, 25 DEG  Ball. or less. Superphosphate solution may be added to the molasses before the first centrifuging to assist in the clarification and to act as a nutrient in the subsequent yeast manufacture.  The first centrifuge may have a larger sludge chamber and a lower speed of rotation than the second.
Patent GB-581032-A (GB)
Title: An improved grass-box for lawn mowers
IPC: A01D34/63
Filed: 1944-06-24
Abstract: 581,032. Lawn-mowers. J.P. ENGINEERING CO., Ltd., and BOOTON, C. F. June 24, 1944, No. 12049. [Class 6 (ii)] A grass box for a lawn-mower is provided with end walls and top and bottom walls which are partially collapsable about hinges so that the box may be folded up to occupy a small space. In the form shown, the box is provided with a base 10, preferably of sheet metal, to which are fixed end walls 13 of wood or thermoplastic material, the upper portions 13a of the walls being provided with hinges 15 so that they may be folded inwardly towards the base. A top wall 12 forming a continuation of the base may also be folded inwardly about a hinge 11. Releasable fastenings 16, provided between the top wall 12 and the end walls 13, fit into slots 19 in the top wall and secure the walls in their extended positions. Lugs 21 are provided for the attachment of the box to the lawn-mower. Specification 411,563 is referred to.
Patent GB-991827-A (GB)
Title: Improvements in or relating to cotton or thread reels
Inventor: CRANE MICHAEL LEWIS
IPC: B65H75/14
Filed: 1963-03-27
Abstract: 991,827. Thread reels. CRANE & PERCIVAL Ltd. March 19, 1964 [March 27, 1963], No. 12056/63. Headings B8M and B8P. A thread reel which may have pins and needles stored therein and is moulded from a plastics material-for example polystyrene  -comprises a hub 1 formed integrally with end disc 2 and tubular portion 4, and an end disc 5 with a tubular portion 7, the ends of the tubular portions being longitudinally spaced from each other within the hub. When the reel is axially compressed portions 4 and 7 contact one another to strengthen the reel. Disc 5 has a flange 8 on to which, or a groove 9, Fig. 5 (not shown), into which, hub 1 fits. Adhesive-for example a mixture of acetone and toluene-may be used. Alternatively the two parts may be screw threaded together. The outer surface of the hub may be roughened by sanding or by the application of a solvent, or may have a plurality of longitudinal ribs. A colour code may be moulded integrally with or secured to one end of the reel.
Patent GB-1138615-A (GB)
Title: Electrical protective relay arrangement
Inventor: HOEL HANS
IPC: H02H3/38
Filed: 1965-03-22
Abstract: 1,138,615. Protective systems. ENGLISH ELECTRIC CO. Ltd. 22 March, 1966 [22 March, 1965], No. 12075/65. Heading H2K. A three phase directional relay comprises at least two circuits each including means, e.g. transactors 28, 29, for deriving a first A.C. signal proportional to the current in the associated phase and means, e.g. voltage transformers 13, 14, for deriving a second A.C. signal proportional to the voltage across the other two phases. Gating means, e.g. electronic switches 22, 23 permit the application to a common detector of that part of the first signal which is coincident with each alternate half cycle of the second signal. The parts of the first signals are applied to the detector through like-poled diodes 35, 35A, so that the resultant signal to the detector is dependent only on those parts which have the maximum instantaneous value, the detector being operable to determine the mean magnitude and the polarity of this resultant signal to provide an indication of any deviation from a predetermined value of phase angle between the voltage and current of the system. A further circuit 30, 15 and 24 may respond to zero sequence current and voltage components to render the relay responsive to earth faults. When the current and voltage signals are in phase, the switches 22 ... 24 and the diodes 35, 35A permit current to flow through only one of resistors 37 or 38 during the alternate half cycles of the voltage signals, but when the signals are in phase opposition current flows only through the other of the resistors 38 or 37. These resistors may be the two coils of a polarized relay, Fig. 3 (not shown) or the single coil of a polarized relay may be connected across the junctions of the resistors 36, 37 and 38, 39, Fig. 4 (not shown). Otherwise an electronic output stage 41 may be used.