baber/WOPTO huggingface dataset:
Patent GB-373117-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/14
Filed: 1930-11-11
Abstract: 373,117. Centrifugal machines. FAWCETT, H. W., 3, Kent Road, Harrogate, Yorkshire. Nov. 11, 1930, Nos. 33919/30 and 22568/31. [Class 23.] A centrifugal separator which continuously discharges separated liquids also discharges sludge intermittently through peripheral outlets, the means for controlling the outlets being such that the outlets are closed when a predetermined weight or volume has been discharged. In the apparatus shown in Fig. 1, the two bowl parts 2a, 2b are secured by a lock ring 3, and a number of nozzles 10 are provided for the discharge of the sludge. A valve 11 normally closes each nozzle, and a tray member 13 is supported on a pivot 16 so that it can move directly over the nozzle 10 when the weight 20 is thrown out by centrifugal force. The opening 13a then passes over the valve pin 11a and the tray is moved intermittently by the rods 18, 30 to cause the valve 11 to slide away from the nozzle 10 and so permit the discharge of sludge into the tray. The plate 13b on the separator retains the sludge in the tray. Eventually the sludge causes the tray to overbalance the weight 20 and to move outwards. When it is clear of the plate 13b the sludge discharges over the top, and the tray again moves inwards to repeat the cycle of operations. In the modification shown in Fig. 2, a hollow ring 40 is arranged to slide up and down over the openings 9. It has apertures 41 which may be brought into register with the bowl discharge openings 9, and in its outer wall it has apertures 42 staggered with respect to the apertures 41. The ring 40 is operated hydraulically by liquid admitted by the valve 48 which may be controlled automatically or manually. When the valve 48 is turned to pass liquid through the pipe 46, the piston 43 is depressed until the openings 42 are closed by the ring 45 and the openings 41 register with the openings 9. The sludge then discharges into the ring 40, and when the space is filled the valve 48 is operated to pass liquid through the pipe 47. The piston 43 is then raised until the apertures 9 are closed and the apertures 42 are open, so that the sludge discharges from the ring and the cycle of operations can be repeated. In another modification the sludge outlets in the drum walls are opened and closed by valves controlled by pivoted levers the movements of which are determined by cups holding a quantity of liquid discharged from the separator. Specification 362,843 is referred to.
Patent GB-1179947-A (GB)
Title: Container for Differential Pressure Filtration.
Inventor: MADSEN RUD FRIK
IPC: B01D35/30
Filed: 1967-07-24
Abstract: 1,179,947. Filter vessel. DANSKE SUKKERFABRIKKER A.S. 24 July, 1967, No. 33935/67. Heading B1D. A container, in which sludge is filtered inwards through filter bags, comprises a body and a cover, each of which is made up of four curved plates welded together, the various axes of curvature being horizontal. The container has a solids discharge valve 6 and respective inlets and outlets for sludge, filtrate and cleaning medium. The body is reinforced by a peripheral frame 4, by which the container is suspended. (For Figure see next page)
Patent GB-1161604-A (GB)
Title: Improvements in and relating to Electrode Assemblies with Sequentially Operated, Closely Adjacent Spark Gaps for Impression Waves in Printing or Perforating
IPC: G06K15/00
Filed: 1966-07-28
Abstract: 1,161,604. Selective perforating. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 July, 1966 [13 July, 1965], No. 33962/66. Heading B4B. [Also in Division B6] An electrode assembly for generating pressure waves in sequentially operated perforating devices comprises a series of closely adjacent spark gaps in which all the spark gaps are electrically connected in parallel and have a common discharge circuit, and including sequentially operable ignition electrodes 31- 40 (not all shown) for the individual spark gaps which are electrically isolated and spacially separated from each other. The ignition electrodes, e.g. 36, Fig. 4, are fitted between insulators 65, 66 and the tip is flush in a chamber FK. Common main electrodes 1, 2, are rod shaped and fitted into copper blocks 61, 62. The discharge may be along the surface of the insulators or through the air, in which case the electrodes 1, 2 project slightly into the chambers FK. Wear of the insulators may be reduced by using liquid insulation means. In a modification, Fig. 6, the main electrodes 1<SP>1</SP>, 2<SP>1</SP> extend through the blocks 65, 66 and are mounted in the copperblocks 61, 62. Discharge occurs in the direction of the sequence of the separate spark gap. The main electrodes 1 and 2 are connected to a capacitor C, charged immediately after discharge through an inductor L and a diode D to a voltage 2U B  and discharges the required energy to cause a pressure wave to effect the perforation. The ignition electrodes 31 &c. are connected to an ignition distributer 2G whose distributing contact 5 is mechanically connected to a scanning device A.
Patent GB-616279-A (GB)
Title: Lighters
IPC: F23Q2/08
Filed: 1945-12-15
Abstract: 616,279. Frictional igniters. SZERENYI, A. Dec. 15, 1945, No. 33992. Convention date, Dec. 15, 1944. [Class 75 (iii)] A lighter comprises a casing having a flint tube 13 and a wick tube 14 projecting from the top thereof, the said top having a recessed portion 36 to provide space for a rotatable actuator 28 for, the flint wheel 16 a pivoted cover 18 forming in its closed position a compartment to accommodate the actuator 28, and a slot formed in the cover 18 into which the actuator projects, the cover and the actuator being simultaneously engageable and operable by a digit of the hand holding the lighter whereby the cover is opened simultaneously with the operation of the actuator and is closed while said actuator remains stationary. The actuator 28, which may be mounted on a square part of the flint wheel shaft 17, may have four arms 27 adapted to pass through a slot in the cover 18, this cover being provided with an upward projection 23 forming an operating trigger 24. The cover 18 may be spring held by a coil spring 30 anchored at one end 31 to a notch 34 in a flame shield 19 and at the other end 32 behind the trigger 24, so that when the trigger is operated to open the lid the thumb will also rotate the actuator 28, but when the trigger is released the cover is closed by the spring 30, the actuator remaining still with the next arm 27 in position for a further operation. The actuator 28 may be provided with tapered arms 27 having friction surfaces, or the actuator may be a complete friction wheel, and two actuators may be used, one on each side of the wheel. The wind shield 19 may have bracket arms pivoted on the flint wheel shaft 17 and may have downwardly projecting lugs 21 brazed or soldered to the lighter. The Specification as open to inspection under Sect. 91 comprises also a lighter in which the flint wheel actuator is not provided with radial arms, but it consists of a friction wheel of the same size as and mounted on the same shaft as the flint wheel, to which shaft the lighter cover is also secured, so that when the flint wheel is actuated the cover is raised. The top of the lighter casing is not recessed. This subject-matter does not appear in the Specification as accepted.
Patent GB-381773-A (GB)
Title: Improvements in drying chambers
IPC: F26B21/04
Filed: 1931-12-10
Abstract: 381,773. Drying electrical condensers &c. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Dec. 10, 1931, No. 34257. Convention date, June 9. [Class 34 (ii).] Condensers and other electrical apparatus enclosed in evacuated casings 16 are dried by hot air, the heating source 5 for which is screened off from the chamber 1 containing the condensers &c. to prevent damage to the latter by direct radiation. The air is circulated by a fan 6 and enters the bottom of the chamber 1 through a duct 7 and flows back to the fan through a duct 4 and the heater 5. Perforated plates 2, 3 ensure an even distribution of hot air in the chamber 1. The walls 9 are double and filled with infusorial earth, the front wall being provided with a door 11 having an observation opening 10. The condensers 16 are supported on a carriage 13 which runs on rails 12. The moisture in the condensers is removed through pipes 14, 17 the outer ends of which are connected to a vacuum pump and to a reservoir containing impregnating liquid.
Patent GB-210587-A (GB)
Title: Improvements in or relating to resilient supporting surfaces, mattresses and the like
IPC: A47C23/055
Filed: 1922-12-15
Abstract: 210,587. Hilton, T. Dec. 15, 1922. Mattresses.-In a reversible spring mattress having hard and soft bed surfaces formed of zebra cords with helical springs therebetween, the zebra cords are stretched to their elastic limit before or after their application to the mattress frame. The zebra cords of the soft bed surface may be of greater length and thinner gauge than those of the hard bed surface, and both sets of cords 4, 4<1> may be connected together and to the helical springs 6 by clips or links 26, 14, 11. Longitudinal and transverse pairs of zebra cords 4. 34 may be used, connected as shown in Fig. 6, while in a further modification one of the zebra cord surfaces may be replaced bv a woven wire surface, one end of each helical spring being threaded into engagement therewith. Specifications 27272/09 and 2036/14 are referred to.
Patent GB-770699-A (GB)
Title: Apparatus for maintaining a required tension in continuously fed material
IPC: G05D15/01
Filed: 1954-11-26
Abstract: 770,699. Automatic tension control systems. SUCKER GES., GEB. Nov. 26, 1954 [Dec. 2, 1953], No. 34417/54. Class 38 (4). In order to maintain the tension in wet material constant during processing, the relative feed speed of feed-in and run-off rollers is adjusted by a variable speed gear coupled between the rolls and controlled electrically in accordance with the movements of a tensiondetecting jockey roll. The web material 2 passes between feed-in and run-off rollers 1, 7 respectively, and passes over a jockey roll 5 producing a desired order of tension by means of a spring 8 adjustable by manually-operated mechanism 44, 53. The roller 5 is connected through a flexible band 39 with a selsyn generator rotor 40 whose shaft carries a pointer 42 movable over a fixed scale 41. The generator stator 52 is also rotatable to a fixed position for setting a desired tension indicated by a second pointer on scale 41. The rollers 1, 7 are interconnected through linkage 19, 20, 21, 22 and an infinitely variable speed gear 23 whose ratio is adjustable by a threaded spindle 26 rotated through gearing 47 by a reversible servomotor 25. A selsyn motor 48, 43 linked to the selsyn generator 40, 52 in the usual manner has moving contacts 50, 51 mounted on its rotor 43, so that rotation of the latter as a result of a tension deviation signal from the generator causes one of these contacts to make with a fixed contact 49 on the selsyn motor stator 48. The motor 25 is thereby energized to rotate spindle 26 and thus adjust the speed ratio of gear 23 in the correct sense to restore the tension to the required value. The stator 48 is also rotated by motor 25 to give a "follow-up" or anti-hunting control. The Specification states that the selsyn systems may be replaced by D.C. bridge networks in which an out-of-balance condition in one circuit results in a corresponding condition in the other.
Patent GB-509301-A (GB)
Title: Improvements in or relating to brushes for applying paint, adhesives and the like
IPC: A46B11/00
Filed: 1937-12-13
Abstract: 509,301. Reservoir brushes ; pumps. ROUND, A. G. Dec. 13, 1937, No. 34449. [Class 19] [Also in Group XXVIII] Apparatus for applying paint or other liquid to surfaces comprises a brush 1 demountably but rigidly attached to the lid 6 of a container 5 and a manually-operated pump 9 associated therewith for feeding paint &c. to the brush. The pump is preferably attached to the underside of the lid 6 and is operated by handlever 8 fulcrummed on a spout 4. The lever 8 is preferably of trigger shape so that it can be operated by the finger of the hand gripping the container 5. The pump comprises a hollow piston 7 with a spring-pressed ball at its lower end and a slidable cylinder 9 also fitted with a ball valve. Operation is by a rod 10 connected through the lid to the lever 8.
Patent GB-742228-A (GB)
Title: Process for the manufacture of concentrated phospho-nitric acid
IPC: C01B25/18
Filed: 1953-12-10
Abstract: Phospho-nitric acid is produced by absorbing oxides of nitrogen in phosphoric acid solution containing more than 20 per cent of water, e.g. 25-45 per cent phosphoric acid.  The acid may be cooled to the neighbourhood of its crystallization point, e.g. -20 DEG C.  The oxide of nitrogen may be used as produced by the oxidation of ammonia or by the treatment of air by electric or thermal methods.  The absorption may be effected at atmospheric or elevated pressure.  The examples describe the use of phosphoric acid containing respectively 24 and 30 per cent of P2O5.
Patent GB-999562-A (GB)
Title: Filters for liquids
Inventor: BUCKMAN KENNETH ERNEST
IPC: B01D35/147
Filed: 1962-09-11
Abstract: 999,562. Filters for liquids. GENERAL MOTORS Ltd. Sept. 10, 1963 [Sept 11, 1962; Jan. 16, 1963], Nos. 34612/62 and 1900/63. Heading B1D. The filter includes two filter elements: 2, Fig. 2, of finer porosity, and 3, of coarser porosity, made, e.g., of resin-impregnated filter paper ; a control device is arranged so that during an initial period of operation the proportion of the liquid passing through the "finer" element is greater than that which passes through the "coarser" element. In Fig. 2 the control device is the disposition of the holes in the perforate support tube 4: they are more numerous adjacent the "finer" element 2. In another embodiment, this disposition of holes is provided in a support tube surounding the filter. In Fig. 7 the finer element 22 and coarser element 23 are arranged end-to-end and the lower end of the internal space is closed. Initially liquid flows inwardly through 22 only, but on attainment of a predetermined pressure drop a valve 36 rises, permitting inward flow through 23 also. The valve may be replaced by a plate with a restrictive orifice. In Fig. 8 the elements are arranged as in Fig. 2, and the valve is a spring leaf valve 40.
Patent GB-178160-A (GB)
Title: Improvements in and relating to screw-drivers
IPC: F16B23/00
Filed: 1920-12-08
Abstract: 178,160. Vianello, O. Dec. 8, 1920. Screwdrivers. - A screwdriver is provided with means for deforming the nick of the screw to prevent removal of the driver blade in an axial direction. The blade 4, Fig. 6, has an enlarged end 3 to engage the nick 1 of the screw and is mounted in a wood or metal sheath 7 to which is pivoted a pair of blades 8 drawn together by a spring 10 and adapted when the handle 5 is struck by a hammer to deform the central part of the edges of the nick 1, as shown in Fig. 4. The blade 4 is preferably in two parts connected by a pivot 60 so that after the actuation of the blades 8 the sheath 7 may be retracted to allow it and the upper part of the blade to be turned at right angles to the acting part 2 of the blade, to serve as a crank for turning the screw. A spring snap 12 engages either of two holes 14, 16 in the blade 4 according to whether the tool is used with the blade in the straight or turned dcwn position. Screw-engaging heads 3 may be provided on both end of the blade 4. The handle 5 is connected to the sheath by a clutch device which permits of a return movement of the handle independent of the sheath. This clutch comprises a sleeve 18 secured to the handle 5 and mounted upon the cylindrical part 19 of the sheath 7 and provided on its lower edge with notches. 2.0 held in engagement with projections 22 on the part 19 by a spring 21. In a second form, Fig. 10, the deforming blades 8 are secured to the handle 5 and are connected to the driver shank 2 by a thumb or other screw 6 and slot 27 which may contain a spring or other elastic body beneath the screw to raise the blades after deformation has been effected. A second spring device may also be arranged above the screw 6. The tool may be used with the blades 8 turned down as shown, or in line with the shank in which position they are retained by a spring catch engaging a slot 14 in the shank 2. A number of screw-driving blades of different sizes arranged in the form of a star may be pivoted to the shank 2, the screw 6 permitting of adjustment of the blades 8 according to the thickness of the individual driving blades. In the form shown in Fig. 11, the deforming blades 8, slidably mounted on the shank 2 by screws 6, 6<1> and slots 27, 27<1>, are connected by a block 31 and the handle shank 2<1> carries two similar plates 8<1> connected by a block 31<1> and the shank 2<1> is pivoted by pins 30 to the shank 2. The tool may be used with the shanks 2, 2<1> in line or at right angles, the deformation of the screws being effected by striking the block 31<1> or 31.
Patent GB-650960-A (GB)
Title: An improvement in or relating to roller skates
IPC: A63C17/06
Filed: 1947-12-30
Abstract: 650,960. Roller skates. SIGMA PUMPS, NATIONAL CORPORATION, and KARDHORDA, E. Dec. 30, 1947, Nos. 34653 and 34654. Convention dates, Jan. 10 and Oct. 15. [Class 132 (i)] A roller skate comprises at least three rollers arranged one behind the other in the direction of skating, all rollers having transversely curved surfaces which are in contact with the skating surface when the skate is vertical or substantially vertical and wherein the cross section of the periphery of the main roller has a smaller curvature than the cross sections of the peripheries of the auxiliary rollers. As shown the skate has three rollers 4, 5, 6, roller 5 being the main roller which remains in contact with the ground when the skate tilts lifting at least one of the other rollers off the ground. The rollers are metal with rubber &c. tyres and a. rubber &c. push off abutment 171 is provided at the front. As shown in Fig. 6, the rollers may be split and mounted on a web instead of between two plates: As shown in Fig. 8, two hard metal, e.g. steel plate discs 17, having a sharp edge 19 to protect the rubber lining 7, may be attached to the sides of the roller.
Patent GB-754324-A (GB)
Title: Improvements in sleeve-valve two-stroke internal combustion engines with crankcase compression pump scavenging
IPC: F01L5/06
Filed: 1954-11-30
Abstract: 754,324. Cooling pistons. GROSS, C. Nov. 30, 1954 [Nov. 30, 1953], No. 34711/54. Class 122(1) [Also in Group XXVII] So that the crown of the working piston 5 of an I.C. engine may be scrubbed with cooling air during crankcase aspiration as well as during cylinder scavenging, intake to a crankcase compression pump occurs when ports 28 in a slide valve 6 and ports 21 in the periphery of the piston 5 and located adjacent its crown are aligned with an annular inlet port 23 as the piston. 5, and as shown the slide valve 6 operating about 14 degrees in advance thereof approach top dead centre, transfer of the compressed air to the cylinder for scavenging occuring at piston bottom dead centre via the ports 21, further slide valve ports 27, transfer passages 19 and the ports 28 then located immediately above the piston crown.
Patent GB-1401006-A (GB)
Title: Container
IPC: B65D41/12
Filed: 1971-07-23
Abstract: 1401006 Seaming D R G PACKAGING 24 July 1972 [23 July 1971] 34725/71 Heading B3J [Also in Division B8] A flange 18 on a sheet metal closure member 12 and a flange 20 on a thermoformed container body 10 are together rolled downwardly, inwardly and then upwardly to form a C- section seam.
Patent GB-194036-A (GB)
Title: An improved tap or cock for use in combination with petrol reservoirs
IPC: F16K3/02
Filed: 1921-12-24
Abstract: 194,036. Sershall, S. H. Dec. 24, 1921. Sliding valves. - The body of the tap comprises two nipples 7, 8 which are screwed into a union 6 against cork settings 11, between which a flat valve-plate 9 slides. The fluid passage 12 is controlled by sliding the plate 9 so that its opening 9<a> is or is not in register with the passage 12.
Patent GB-484936-A (GB)
Title: Improvements in or relating to kerbs, road channels or the like
IPC: E01C11/22
Filed: 1936-12-17
Abstract: 484,936. Road kerbs and gutters ; blocks. HOLMAN, T. E., and JONES, D. G. M. Dec. 17, 1936, No. 34756. [Classes 87 (i) and 107] [Also in Group XI] A road kerb 10 is held against lateral movement by one or bonding members, such as rag bolts 16, which are fixed. in the kerb and project into a bedding material 14 extending both below and to the rear face of the kerb. The rag bolts or the like may be fitted to the lower or the rear faces of the kerb, or both, and additional rag bolts 18 may be provided to connect adjacent kerb blocks. The bolts 16 may be tied to one another or to the bedding material by ties 20. The top, front, or both top and front faces of the kerb may be provided with a wear-resisting facing of rustless metal. In a modification the bonding members are formed by rods situated on one or both sides of the kerb and having bent upper ends which enter holes in the kerb. The Provisional Specification describes also modified constructions of kerbs and the use of bonding members in channel blocks. In one construction, the kerb is of angle section and is fitted with one or more bonding members and in another construction the kerb is in the form of an inverted trough having laterally projecting parts which effect the bonding. Hollow kerbs are also described which are adapted to carry electric wires or gas or water pipes, or which carry lamps disposed adjacent windows provided in the top, front, or both top and front faces of the kerbs. Lights of a distinctive colour are employed at pedestrian crossings.
Patent GB-1453562-A (GB)
Title: Walking beam type furnaces
IPC: F27B9/20
Filed: 1974-08-07
Abstract: 1453562 Walking-beam furnaces ITALIMPIANTI SOC ITALIANA IMPIANTI PA 7 Aug 1974 [8 Aug 1973] 34824/74 Heading F4B In a walking beam billet heating furnace, the stationary support beams 1 and moving beams 2 have notches in the first part only of the furnace so that the billets are turned through at least 360 degrees before reaching a temperature at which they are sufficiently soft to avoid deformation due to differential thermal expansion. The moving beams 2 are mounted on carriages reciprocated by linkages 7, 8, 10, 110 on carriages 5 moved up and down ramps 14 by a linkage 12, 112. The stationary beams 1, Fig. 11, have asymmetric notches arranged so that steep sided teeth alternate with less steep sided teeth, while the moving beams 2 have notches 18 with sides sloping at the same angle as that of the less steep sides of the stationary bar teeth, separated by flat portions 19. The beams 1, 2 have flat areas opposite the charging door, and the teeth extend over the first third only of their length.
Patent GB-495151-A (GB)
Title: Improvements in or relating to stop valves
IPC: F16K1/42
Filed: 1937-12-16
Abstract: 495,151. Valves. COCKBURNS, Ltd., and GRANT, T. Dec. 16, 1937, No. 34827. [Class 135] The valve member 1 of a stop valve is provided with a short cylindrical extension 2 guided within the bore of the valve seat and presenting a convex face to the upstream fluid. The valve seat 3 has a flange 10 which embraces the periphery of a seat supporting part 11 of the casing and is secured in position by bolts 12 which allow the seat to expand radially independently of the casing.