baber/WOPTO huggingface dataset:
Patent GB-207967-A (GB)
Title: Improvements in or relating to the lubrication of internal combustion engines
IPC: F01M1/04
Filed: 1922-11-01
Abstract: 207,967. Prestwich, J. A. Nov. 1, 1922. Force-feed lubricating; separating oil and gases. - In a lubricating - system for internal-combustion engines in which an oil chamber receives the mixture of gases and oil from the crank case at times of pressure therein and oil trapped in the chamber is drawn back to the engine at times of depression, means are provid'ed for delivering oil from the chamber to a reservoir adapted to give an additional supply of oil to the engine when it is tilted on ascending a hill. The gases and oil pass from the crank case a through apertures j to the valve-gear housing b, whence they pass through channels g and g<1> and non-return valves h into a chamber e which may be integral with the crank case and in which the oil collects, the gases escaping through a vent k. Oil collected in the chamber e is drawn up a pipe o to the crank case during the periods of depression therein. In the form shown in Fig. 1, a reservoir n is provided adjacent the chamber e and separated therefrom by a weir m over which oil flows from the chamber e to the reservoir. When the engine is tilted, the oil in the reservoir n flows over the weir into the chamber e and augments the supply therein. In the form shown in Fig. 3, a reservoir s on the top of the crank case communicates with the chamber e by a pipe r and has a wall t with a number of holes u disposed slightly above the normal level of oil in the reservoir and opening into a space v communicating with the crank case through an aperture w. The reservoir being subject to the vacuum in the crank case, oil is drawn into the reservoir from the chamber e. When the engine is tilted, an increasing amount of oil is delivered to the engine through the openings u.
Patent GB-1274745-A (GB)
Title: Training device
Inventor: CORNELL WILLIAM DANIEL
IPC: H04N7/18
Filed: 1969-06-12
Abstract: 1,274,745. Golf practise device. BRUNSWICK CORP. 12 June, 1969 [4 Sept., 1968], No. 29900/69. Heading A6D. [Also in Division H4]. In a television recording and playback system, e.g. for recording and subsequently analysing a golfer's stroke, blurring produced due to rapid movement of the golfer and the relatively slow picture rate of the television camera 24 is reduced by interposing a rotating shutter 40 between the golfer and camera so that the golfer's viewed only for a short period, e.g. 1/1000 second, during the flyback time, when a stroboscope 32 simultaneously illuminates the golfer, both the shutter and the stroboscope being synchronised with the vertical sync pulses produced at the camera. In the preferred embodiment using a field rate of 60 c.p.s. for an interlaced picture, the vertical sync pulses are derived from the mains frequency and the shutter it rotated by a synchronous motor 36 at one half of mains frequency. A circuit 44 senses an electrical or magnetic discontinuity on the shutter 44 and compares its phase with that of the vertical sync pulses so as to control the precise synchronisation of the motor 36. Vertical sync pulses are also fed to a bistable multivibrator 54 so that a generator 62 produces a pulse to fix the stroke 32 once every two sync pulses. Since the stroke pulses may be 180‹ out of phase with the rotation of the shutter 46, a switch 60 connects either of the outputs of the bistable 54 to generator 62. Alternatively the stroke may be operated at the field rate. The output of camera 24 is recorded on a video tape recorder and reproduced on a monitor 28.
Patent GB-1168746-A (GB)
Title: Work Holder.
IPC: B24B41/06
Filed: 1968-06-24
Abstract: 1,168,746. Workholders; grinding. CARBORUNDUM CO. 24 June, 1968 [26 June, 1967], No. 29917/68. Headings B3B and B3D. A workholder 50, Figs. 3 and 5 comprises a housing 54, a rotatable shaft 70 projecting from the housing and having a pair of work clamping fingers 74, 76 mounted thereon adjacent one end, the shaft 70 being rotatable by first means, e.g. handle 78 to bring the fingers 74, 76 into engagement with a workpiece and second means being provided to apply clamping pressure. The second means include a drum 80 mounted on the shaft 70, a steel band 104 encircling the drum and secured at one end to a pivotally mounted block 86; an eccentric device 130 . . . 136 is arranged to be operated manually by means of handle 140 to pivot the block 86 thereby tightening the band 104 about the drum and simultaneously turning the drum to apply damping pressure. In a cut-off machine, Fig. 2, having a cut-off wheel 28 mounted at one end of a pivotally arranged arm 22 the wheel being driven from a motor 36 mounted on the arm 22, the workholder 50 is mounted on the underside of the worktable 12 the fingers 74-76 being arranged to project upwardly through slots in the table to clamp a workpiece W against an angle shaped abutment member 150 secured to the table. To cut through the workpiece W the arm 22, with the cut off wheel 28, is pivoted downwardly by means of handle 24, the wheel 28 passing between the clamping fingers 74, 76 and through suitable slots in the table 12 and abutment member 150.
Patent GB-366930-A (GB)
Title: Autographic registers
IPC: B41L5/04
Filed: 1930-10-06
Abstract: 366,930. Autographic recorders. PFEIFFER, F. E., 2124, Malvern Avenue, Dayton, Ohio, U.S.A. Oct. 6, 1930, No. 29919. [Class 106 (i).] The superposed detail strips and summary record strip are fed at different rates with each turn of the crank handle and the detail strip feed rollers are automatically separated to allow alignment of the sheets without interfering with the continued drive of the summary strip. Moreover the feed of the detail strips may be suppressed and the record strip alone advanced. In the form shown two detail strips supplied from a receptacle 109, Fig. 11, are drawn across a table 23, and above a spacer plate 19 thereon, by a pair of feed rollers 42, 43 rotated by a train of gears from the crank handle shaft 35. Between and below the strips are arranged transversely carbon strips unwound from a spool 15, Fig. 2, and clamped at the other side of the casing by a grip 20. The detail strips are furnished with pairs of holes 33 adapted to be entered by aligning fingers 45, 51, Fig. 3, projecting from sleeves carried by the upper roller shaft and urged to rotate therewith by friction due to springs 47, 52. The sleeves are also provided with cams 59, 60 which at the end of the rotation of the rollers ride upon the lower roller shaft to raise the upper roller and so stop the feed. Normally the cams are obstructed by stops 62, connected by a bar 64 and pivoting about a shaft 38 but at the beginning of the operation these levers are rocked to free the cams to allow the detail strips to be fed out of the casing. Towards the end of the feed the fingers 51 enter the holes 33 and the rollers separate to free the strips for alignment by the fingers. The summary record strip 6 is drawn by feed-rolls 30, 31 over the table 23 from a box 105 and in addition to receiving the summary record from the detail strips may also be directly inscribed at 22, the carbon strips and the spacer plate overlying the record strip being cut away at this place for this purpose. The feed-rolls 30, 31 are driven from the main shaft 35 through a reduction gear train so as to feed the record strip only sufficiently to space the summary lines. If it is desired to shift the record strip without feeding the detail strips, a slide 74, Fig. 11, may be shifted to withdraw a dog 82 from between the main shaft and arm 86 so as to render the cam 85 ineffective for removing the obstructions to the rotation of the feed rollers 42, 43. The rolls 30, 31 may be separated by manipulation of a handle 98 and the cover may be locked down by hooks 111 removable only when the hinged front 10 is unlocked at 115 and opened.
Patent GB-850941-A (GB)
Title: Improvements in or relating to thermal regenerators
IPC: E04B1/78
Filed: 1957-09-24
Abstract: 850,941. Thermal regenerators. PHILIPS GLOEILAMPENFABRIEKEN N.V. Sept. 24, 1957 [Sept. 27, 1956]. No. 29949/57. Class 64(1)  In a method of making a thermal regenerator, particularly for hot gas engines, refrigerators or heat pumps, in which a filling material is embraced by a wall, the filling material 2 is placed in a jig 1 (Fig. 1), a fluid or plastic material being introduced into an annular space 3 surrounding the filling material and subsequently solidifying to form the wall. The wall may be made of a ceramic material or of an organic material such as silicone rubber. The filling material may comprise sheets of wire gauze, thin perforated plates, or, as shown in Fig. 3, a mass 5 of thin wire such as described in Specification 747,706, and the regenerator may be strengthened by providing around the regenerator wall 6 a further wall 7 of a material such as a thermo-setting synthetic resin.
Patent GB-776124-A (GB)
Title: Improvements in or relating to the reduction of metal chlorides
IPC: C22B34/10
Filed: 1955-10-20
Abstract: 776,124. Extracting titanium and zirconium. ST. JOSEPH LEAD CO. Oct. 20, 1955 [Oct. 20, 1955], No. 30003/55 Class 82(1) The tetrachloride of titanium or zirconium is reduced by maintaining a stream. of molten magnesium chloride, at a temperature between the melting and boiling points of magnesium, in continuous circulation from a lower body of molten magnesium chloride in an upwardly inclined current to an upper body of molten magnesium chloride and in a downward current to the lower body, introducing titanium or zirconium tetrachloride and at least a stoichiometric amount of molten magnesium into the lower portion of the said upwardly inclined current and withdrawing from the lower portion the said lower bodya suspension of the refractory metal in magnesium chloride. As shown the apparatus used comprises a reaction vessel 10 having an upper chamber 10a and lower -chamber 10b, the portion of the vessel between the two chambers being divided by a partition 12 to provide two superposed passageways between the two chambers inclined preferably at an angle of about 30 degrees to the horizontal. The vessel being filled with molten magnesium chloride, vacuum is applied above the chamber 10a to ensure a difference in liquid level between the lower and upper chambers and inert gas supplied to dome 15 bubbles through the upper passageway, causing circulation and sweeping out oxidizing gases being exhausted from the outlet pipe 27. The tetrachloride is introduced into dome 15 and molten magnesium at required rate from. inlet 19. The refractory metal is formed as the reactants ascend together to the upper body of molten chloride. The produced metal in particulate form descends via the lower passageway to form a sludge at the lower portion of chamber 1Ob The sludge is removed by pump 24 to settling chamber 30 where a further separation takes place, the thickened sludge being removed by sump 35 for recovery of metal therefrom, magnesium chloride being returned through pipe 36 to chamber 1O and the excess, produced by the reaction, being removed from the overflow 37.
Patent GB-183767-A (GB)
Title: Improvements in gratings
IPC: F23H13/00
Filed: 1921-11-10
Abstract: 183,767. Wells, A. E. Nov. 10, 1921. Joining sheet-metal.-Consists in forming the grating of a set of bars deeply notched to receive a second set intersecting the first, the metal of the notched bars above the intersecting bars being deformed to produce locking engagement with the latter. In the form shown, bars 1 of U-section are notched at 2 to receive cross-bars 3, the metal of the cross-bars being punched up as at 4 in a press into engagement with the edges of the notches 2, which edges are deformed as at 5 to spread the metal into locking engagement with the bars 3.
Patent GB-737835-A (GB)
Title: Electric igniters
Inventor: BRIMLEY KENNETH JOHN
IPC: F42D1/04
Filed: 1953-10-30
Abstract: 737,835. Blasting fuzes. IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 5,1954 [Oct. 30, 1953], No. 30017/53. Classes 9(1) and 9(2). An electric igniter comprising a tubular casing 1 closed by a resilient plug 6, through which extend the leads 5, 51 from an electric fuzehead 4 within the casing, is provided near the base of the casing with a transverse slot 2 for the insertion of a fuze cord. Furthermore the slot extends into a waterproof incendiary composition filling the base of the casing. The casing 1, which may have a sealed vent hole, may be of aluminium, copper or alloys thereof, e.g., gilding metal, and the plug may be rubber, neoprene or a synthetic resin. The composition 3 may be a mixture of pulverulent oxidising and reducing agents with a binder and reacting with the evolution of little gas or with an appreciable volume of gas. Suitable mixtures comprise silicon and a lead compound. A preferred composition is 30 per cent nitrocellulose, 21À6 per cent potassium nitrate, 27 per cent red lead 21À1 per cent silicon and 0À3 per cent diethy diphenyl urea, all parts being by weight.
Patent GB-723956-A (GB)
Title: Process for producing cellular thermoplastic bodies
IPC: C08J9/04
Filed: 1952-11-27
Abstract: Closed-cell gas-expanded cellular thermoplastic bodies are prepared by forming a cellular thermoplastic body having all cells closed and filled with gas at higher than atmospheric pressure; heating said gas-containing body while applying super-atmospheric pressure, and then reducing this pressure so as to expand the gas. Specified thermoplastics are polyvinyl chloride, vinyl chloride copolymers, particularly with vinylidene chloride, polyvinyl butyrate, acetate, alcohol, formal and butyral, polystyrene, polydichlorostyrene, polyalphamethylstyrene, polymethylmethacrylate and polymethyl and polyethyl acrylates. Specified gassing agents are azoisobutyric dinitrile, alpha-alpha-azobisiso diazoamine benzene, and 1,3-bis-(p-xenyl)-triazine.  Ammonia or carbon dioxide gases may be used, produced e.g. from a mixture of ammonium chloride and sodium nitrite.  Solvents such as methyl ethyl ketone, acetone and ethyl acetate and plasticizers such as dioctyl, dibutyl or dimethyl phthalate and tricresyl phosphate may be present in the blowing mixture.  A super-atmospheric pressure of 2-9 kg./cm.2 may be applied by means of a gaseous or vapour pressure medium which may be a gas or vapour of the same nature as that present in the cells and may be applied in an autoclave. Alternatively the super-atmospheric pressure may be applied by means of a liquid pressure medium, preferably an inert liquid and the heating step effected at 5 to 10 DEG  C. less than that at which the cellular body decomposes.  It is preferred that the final body is expanded to give a uniform internal pressure of 1.1 atmospheres absolute or less.
Patent GB-1430733-A (GB)
Title: Hot gas engines
IPC: F02G1/043
Filed: 1974-01-14
Abstract: 1430733 Hot gas engines UNITED STATES GOVERNMENT OF 14 Jan 1974 [30 Jan 1973]  30108/75 Divided out of 1430731 Heading F1S A hot gas engine operates on a regenerative cycle and has a cylinder 12, a displacer piston 11 a regenerator, a crank-case 31 adjacent to the cylinder and a bellows seal 26 attached at one end to the displacer piston and at the other end to the inner wall of the cylinder around an opening between the crank-case and the cylinder, the bellows seal being effective to seal off the crankcase from the cylinder. The engine described also forms the subject matter of the parent Specification 1430731 and the Divisional Specifications 1430732 and 1430734 which are referred to.
Patent GB-945760-A (GB)
Title: Collapsible goal frame
IPC: A63B63/00
Filed: 1961-08-21
Abstract: 945,760. Goal posts. R. F. SHORES. Nov. 20, 1962 [Aug. 21, 1961], No. 30129/61. Heading A6D. A goal frame comprises rods and/or tubes 2, 3, 4 and 5 adapted to be releasably secured together end to end, and a tensioning cord or wire 13 slidably engaged in slots or apertures in the members 3 and attached at its ends to anchorages 14 adjacent the upper ends of the uprights of the frame. The frame members may be circular in cross-section, and adapted for stud and socket fastening one to another, in which ease the various members are located relative to each other by pins 6 and 11, or by co-operating ball catches and recesses. Alternatively, the frame members may be of elliptical cross-section to prevent their relative rotation when assembled together, or the ends of the frame members may be screwthreaded. Projections may be formed in parts 8 of members 2 for engaging with the ground, or alternatively blocks may be secured to members 3 for stabilizing the structure. Struts may be provided extending rearwardly from the uprights of the frame, to hold a net away from the goal mouth.
Patent GB-795435-A (GB)
Title: Improvements in and relating to magnetic latches suitable for refrigerator doors
IPC: E05C19/16
Filed: 1956-10-03
Abstract: 795,435. Releasable fastenings. GENERAL ELECTRIC CO. Oct. 3, 1956 [Oct. 4, 1955], No. 30139/56. Class 44 In a door latch operated by the attraction between a magnet and an armature, the armature comprises a fixed main portion and an auxiliary portion arranged for movement relative to the main portion, means being provided to exert a biasing force on the auxiliary portion in a direction corresponding to the closing movement of the door. In the arrangement shown, as applied to a refrigerator, the door 3 of -which includes a compressible gasket 4, a permanent magnet 10 having pole pieces 11 is enclosed in a non - magnetic casing 12 with only the pole faces 13 exposed. An armature assembly mounted on the cabinet portion includes a main fixed portions 19 and an auxiliary portion 21 which is secured to a guide rod 22 extending through an aperture 23 in the portion 19 and is biased towards the portion 19 by a spring 24. The arrangement is such -that the armature portion 21 maintains contact with the magnet 10 during rebound of the door and returns the door to a sealing position after the rebound force has been dissipated. In another arrangement, Fig. 6, in which poles 35 of a magnet fixed to a door co-operate with an armature 37 member on a cabinet portion 38, a rod 40 of magnetic material extends through an aperture 41 of the armature 37 and is biased into contact with the pole piece 35 by a light spring 45 when the door is in a position in which a gasket 49 is in contact with the face of the cabinet in a substantially uncompressed state. A heavy spring 44 functions to return the door to a closing position following a rebound.
Patent GB-403212-A (GB)
Title: Machine for piercing, aerating and loosening turf of golf greens, other greens, and lawns
IPC: A01B45/02
Filed: 1932-10-28
Abstract: 403,212. Garden rollers; implements for working land. GIBSON, D., Lawthornbank, Perceton, Irvine, Ayrshire. Oct. 28, 1932, No. 30209. [Class 6 (i).] A cylindrical roller for piercing golf greens &c. has a number of spikes D arranged in holes D<1> in the roller and retained loosely therein by collars C, C<1> on the spikes which engage the inner and outer surfaces of the roller and allow a tilting or pendulum like motion of the spikes D. The holes D<1> are considerably larger than the spikes D so that the spikes enter the ground at a small angle and remain almost vertical while in the ground. The roller is provided with a frame H in which slots P are formed to receive the axle of a cylindrical concrete ballast weight for varying the rolling pressure. Specification 258,112, [Class 6 (i), Cultivating implements &c.], is referred to.
Patent GB-801040-A (GB)
Title: Improvements relating to gas turbine engines
IPC: F02C5/10
Filed: 1955-10-22
Abstract: 801,040. Gas turbine plant. BIRTWISTLE, J. R. Oct. 16, 1956 [Oct. 22, 1955], No. 30261/55. Class 110 (3). [Also in Group XII] A gas turbine engine comprises a nozzle adapted alternately to convey air from a supply duct to a combustion chamber and to discharge gas from the combustion chamber through the duct to a diffuser, a second nozzle conveying gas from the combustion chamber to the same or another diffuser, and a duct leading from the diffuser or diffusers to a turbine. Air from a compressor passes by way of a duct 1, Fig. 1, and a nozzle 2 to a combustion chamber 4, while the exhaust gas from the last cycle of operation continues to flow out through a nozzle 5. At the same time, air from duct 1 flows through a nozzle 3 and mixes with the exhaust gas in a duct 7. Fuel is then rapidly injected into the combustion chamber 4 and ignited by a device 10, and the subsequent rise in pressure causes the gas to flow outwards through the nozzles 2 and 5 and then through diffusers 3 and 6 and the duct 7 to turbine guide vanes 8. The gas pressure drops through the nozzle 2 to that of the air supply and increases again through the diffuser 3, so that flow of air from the duct 1 almost ceases during this part of the cycle. The cycle is then repeated. The nozzle 2 and diffuser 5 may be designed for either subsonic or supersonic conditions. A regenerator may be provided in duct 7 or that part of duct 7 receiving gas from diffuser 3 only, to reduce the temperature variation. In a modification, Fig. 2, the nozzles 2 and 5 are concentric, and gas from the periphery of the cylindrical combustion chamber 4 is guided to the nozzle 2 by a baffle 11. The nozzles 2 and 5 discharge to a common diffuser 13 which is preceded by a cylindrical section 12 to improve the mixing of the gas with any entrained air. In a further embodiment, the combustion chamber, nozzles, diffusers and air supply duct are of annular form.
Patent GB-1508598-A (GB)
Title: Apparatus for indicating ice accretion
IPC: G01N7/00
Filed: 1974-07-09
Abstract: 1508598 Indicating ice formation; pneumatic gauges LUCAS INDUSTRIES Ltd 1 July 1975 [9 July 1974] 30317/74 Headings G1M and G1X The rate of accretion of ice is indicated by apparatus comprising a test surface upon which ice forms, in use, a passage 14 terminating in an aperture which is presented to and spaced by a known gap from the surface, gas flowing from the aperture into the gap. The test surface is driven past the aperture at a known constant speed, any ice forming effecting the flow of gas from the aperture, the resultant variation in gas flow and/or pressure within the passage 14 being monitored by a sensor 23 having an instrument 25 associated therewith which provides an indication of the rate of ice formation. An ice removal device 17 is provided which may be on or adjacent the surface, and comprise a rotating cutter, a fixed scraping blade or a localized heating device. As described, the test surface travels past an aperture 12 in an aircraft nacelle to expose the surface to the ice forming conditions, and may be the surface of a rotating cylinder, as shown, a rotating disc, a reciprocating plate or a loop of flexible material in the form of a sheet, ribbon or wire. As shown a reference passage 14a may be incorporated, which obviates error due to incomplete ice removal. Air issuing therefrom may also serve to facilitate removal of ice chips from the area of the aperture in passage 14. The effect of variations in the flow of gas from the source is also reduced.