baber/WOPTO huggingface dataset:
Patent GB-962490-A (GB)
Title: Improvements in or relating to spark-erosion apparatus
IPC: B23K9/00
Filed: 1962-05-08
Abstract: 962,490. Spark-erosion. ATELIERS DES CHARMILLES S.A. May 8, 1962 [May 23, 1961], No. 17680/62. Heading B3V. [Also in Division H3] A spark erosion apparatus fed by a D.C. source a, b comprises magnetic energy-storage means 8 for storing energy during flow of current pulses from the source and through the spark gap between electrode 4 and workpiece 5, under the control of a make and break switch 24, and a unidirectional conducting means 6 to enable discharge of stored energy through the gap when the switch is open. Current is supplied through valve 24, acting as the switch, to the primary 22 of saturable pulse transformer 23 where secondary 25 is connected in series with diode 27, primary winding 8 of an energy storage transformer 7 and the spark gap. Secondary winding 9 of transformer 8 is connected through inductor 10 and rheostat 11 to a biasing current source for saturating the transformer. Pulse transformer 23 has a polarizing winding 26. When the valve 24 is conducting, transformer 8 is charged as current flows through the spark gap; when the valve is cut-off the transformer 8 discharges through the gap and shunt diode 6 whilst diode 27 blocks the reverse current flow from secondary 25 which then flows through resistor 28. In a modification, Fig. 4 (not shown), the valve 24, pulse transformer 23, resistor 28 and diode 27 are omitted. The magnetic energy storage means may comprise a simple inductor (Fig. 2, not shown) or merely a conductor. In another embodiment, Fig. 6 (not shown), a double-pole switch and two shunt diodes are used. In a further embodiment, Fig. 7, the switch is formed by a battery of parallel transistors T 1 , T 2 , stabilized by capacitors 20 and triggered by an impulse transformer 19. Silicon diodes 21 form the unidirectional conductors and a polarity change switch 16 is provided for the spark gap. Safety means prevent the switch from closing if a short-circuit occurs across the gap. The latter is bathed in paraffin oil.
Patent GB-580923-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/42
Filed: 1943-10-27
Abstract: 580,923. Variable-pitch propellers. FAIREY AVIATION CO., Ltd. Oct. 27, 1943, No. 17721. Convention date, Feb. 25. [Class 114] [Also in Group XXIX] A self-contained unit for mounting on the propeller drive shaft 12 of an aircraft engine 11 comprises a governor 42 driven by the engine and controlling clutches for selectively connecting the propeller drive shaft with gearing connected with the pitch changing mechanism 22 to actuate the latter in either direction. The governor may actuate a tubular valve 49 which controls hydraulically actuated clutches 50, 51 for said gearing, the hydraulic fluid being forced to said clutches by a pump 167 driven by the engine. The gearing includes a ring 43 geared to drive a wheel 27 which is geared to the worm-wheels 22, and a gear-wheel 37 which drives a shaft 41 carrying the clutches 50, 51 and driving the governor 42 through bevel gears. Actuation of one of the clutches will cause a bevel-wheel 52 or 53 to rotate a gearwheel 46 or 47 and rotate the ring 43 in one direction or the other to vary the pitch of the blades 23. The ring 43 also drives a shaft 59 carrying cams 60, 61, 62 engaging spring-urged valves 63, 64, 65 (63 and 65 are not shown). If the speed is such as to require fine pitch, the valve 49 allows the pressure fluid to pass into conduits F, F<1>, the former being blocked by the valve 63 in its closed position, and the latter leading to a cylinder containing a spring- urged member 69 which closes the clutch 51. This changes the blades to their fine pitch position, and at the same time bevel-wheel 53 rotates the cams until cam 60 releases the valve 63 and the movement is stopped. A similar action changes the pitch to a coarse position. The operation of the governor 42 may be over-ridden by a lever 66 which may also be used for changing the pitch to a feathering position. For this purpose, the valve 49 is moved to its coarse pitch position, and the cam 61 and valve 64 rendered temporarily ineffective by means of a cable (not shown) so that the changing movement continues until stopped by the feathering cam 62 opening the valve 65. Should the engine stop, the blades may be moved to the feathering position by the auxiliary electric system shown in Fig. 9, wherein an electric motor 74 is connected'by a clutch 75 and bevel-wheels to a shaft 78 geared to the bevel wheel 52, the circuit including a solenoid 80, a cock-pit switch-81, and a switch 82 operated by a cam 82<1> for cutting out the motor 74 when the feathering position is reached. In modifications: (i) the shaft 41 is vertical and directly drives the governor ; (ii) an additional cam and two additional switches are provided whereby the pitch is also changeable to a reverse or braking position ; (iii) the invention is applicable to contra-rotating propellers on coaxial shafts ; and (iv) magnetic instead of hydraulic clutches are employed. Specifications 491,041, 564,221, 568,749, 580,488 and 580,745 are referred to.
Patent GB-1132292-A (GB)
Title: Improvements in, and relating to a device for the lifting, moving in a lateral direction and putting down again of a plurality of articles suspended from a carrier
IPC: B65B21/18
Filed: 1967-04-18
Abstract: 1,132,292. Packaging articles; endless conveyers. GEBR. STORK & CO.'s APPARATENFABRIEK N.V. 18 April, 1967 [20 April, 1966], No. 17749/67. Headings B8A and B8C. [Also in Division F2] A carrier from which articles, e.g. bottles 6, are suspended is moved along a path including two upright portions 12, 13 by a link 10 connected at 14 to a link 15 rotated with substantially sinusoidal angular velocity about a shaft 16 which is ultimately driven from a uniformlyrotating shaft 24. In the form illustrated bottles 6 are lifted from an endless conveyer 1 and deposited in crates 4 on a conveyer 3. The shaft 16 is driven by a chain 19 passing around sprockets 17, 18 and driven by a connecting-rod 21 from a crank 23 on the uniformly-rotating shaft 24. The carrier 7 is maintained at a fixed orientation by chains passing around sprockets centred on the pivots 9, 14, 16.
Patent GB-281190-A (GB)
Title: Improvements relating to pillars, columns or the like
IPC: E04H12/22
Filed: 1927-02-25
Abstract: 281,190. Poitzi, F. Feb. 25, 1927. Concrete posts; modified for climbing; of special cross section; bases. - Pillars and columns of reinforced concrete and polygonal section with concave sides and rounded edges are enclosed just above and below ground level by an iron or concrete casing 6 which is filled in with concrete containing reinforcements 9. Two pillars may be enclosed in a single casing. A central hole 4 is provided for cables or pipes, and holes 5 for pegs to facilitate climbing. The concave sides may be variously shaped, as shown by the dotted lines.
Patent GB-1167306-A (GB)
Title: Chair-Tablet Arm Construction.
Inventor: JORDAN JOHN WILBERFORCE NOEL
IPC: A47C7/70
Filed: 1968-04-16
Abstract: 1,167,306. Table attachments for chairs. RACE FURNITURE Ltd. 16 April, 1968, No. 17821/68. Heading A4H. A tablet arm 60 serving as a writing desk is pivotally mounted on a support plate 52 which is hinged to a U-shaped plate 41 secured to the arm supports 34, (34a) of two side by side chairs, the arrangement being such that the tablet 60 can be stowed away in the space (38) between the chairs or it can be moved from the space (38) by pivoting the support plate 52, and then disposed horizontally in front of either chair by rotating the tablet from the vertical to a horizontal position. A leaf spring 80 secured to the support plate 52 presses against the bottom of the tablet to reference the tablet in vertical or horizontal position. The tablet is supported in horizontal positions by rubber feet 87 on the support plate 52. The U-shaped plate (41) is secured to the arm supports 34, (34a) by means of aligned holes (50, 36) and by T nuts (204a, Fig. 7) movable in elongated apertures (200, 200a) in the U-shaped plate 41 and engaging screws (208a) passed through holes (37) in the arm supports 34, (34a). The elongated apertures (200, 200a) allow the tablet to be fitted to chairs arranged in a straight or curved row. A tablet may be mounted on the outer arm of the end chair of a row by bolting thereto a panel member (100 Fig. 8) having a rectangular plate (134) which takes the place of the arm support (34a).
Patent GB-429549-A (GB)
Title: Improvements in vanity cases and the like
IPC: A45D33/00
Filed: 1934-06-16
Abstract: 429,549. Vanity cases. TAYLOR, F. H., 17, Norman Road, Northfield, Birmingham. June 16, 1934, No. 17855. [Class 18] The lid of a vanity case or the like contains a mirror, and is so mounted, that when opened it is reversed, to cause the mirror to face forwardly. The lid 2, Fig. 2, holds a mirror 3, and is pivoted at its centre to a link 4, which is pivoted at its other end to a well 5b in the flange of a powder container 6 fitted to the case 1. When the lid is closed it is held in position by interengaging catches 9<a>, 10, and a diametrically positioned projection fitting into a notch 6a. The mirror 3 faces outwards and is thus not soiled by the powder, and can be used without opening the lid. Pressure on a plunger 9 releases the lid and mouse-trap springs 8, causes the link 4 to rise, whilst the lid pivots about its centre, the resultant position being as shown. The catch 9<a> may act as a stop for the link 4. In a modification, Fig. 6, compression springs 14 may replace the link 4. In a further modification, Fig. 8, spring controlled toggle links 16 may be employed. In a still further modification, Fig. 10, projections 20 slide along guide slots 18 until they reach the end thereof, when a suitable spring tilts the mirror. A sieve and powder puff may be incorporated, and compartments for rouge, lipstick, and the like may be provided, the lipstick case being raised by means of a spring or a plunger. The container may form or incorporate a cigarette case.
Patent GB-791819-A (GB)
Title: Improved method of packaging coils of longitudinally extending material
Inventor: SPENCE JOHN TAYNTON DAVY
IPC: B65H75/02
Filed: 1955-06-21
Abstract: 791,819. Packaging. NATIONAL STANDARD CO., Ltd. June 20, 1956 [June 21, 1955], No. 17874/55. Class 94(1). A method of packaging a coil of wire, thread, yarn or like material comprises in one form, Figs. 2-4, stretching a sleeve 3 of thin rubber or other waterproof elastic material over a reel comprising a core 1 and flanges 2, winding the wire &c. 5 on the reel and folding the end portions 7 of the sleeve into overlapping relationship so that the wire &c. is enclosed in an annular envelope. The overlapped portions 7 may be secured together by adhesive and layers of kraft paper 4, 6 may be interposed between the wire &c. and the sleeve 3. The package may be completed by wrapping a further layer 8 of kraft paper around the periphery of the sleeve and securing wooden battens 9 to the flanges 2 as shown in Fig. 5. Alternatively, if the flanges are made of metal, the battens may be forced between them and retained by metal bands, see Fig. 6 (not shown). If the flanges 2 are detachable, they are removed after the sleeve 3 has been applied. Layers 15, Fig. 8, of kraft paper are then wrapped around the periphery of the package and its sides are protected by cardboard discs 16 held in position by bands 17 passing through the core 1.
Patent GB-334222-A (GB)
Title: Improvements in and relating to carburettors
IPC: F01M1/24
Filed: 1929-04-27
Abstract: 334,222. Dobbie, E. D. April 27, 1929. Stop-gear.-A fuel cutoff valve is kept open during the normal running of the engine by the lubricating-oil pressure and closes automatically when the engine stops. The valve may be the usual floatactuated needle valve or an auxiliary valve located in a chamber through which the fuel passes to the float chamber. A plunger 3 is moved downwards by the engine oil pressure against the action of a spring 7 which retains the valve 4 on its seat through a toggle lever 18 when the pressure falls below a certain value, thereby cutting off the fuel supply. An annular lip 14 bears on a leather or similar seating 13 to prevent leakage when the spring is fully compressed, an anticushioning vent 9 being provided in the wall of the lower part of the chamber in which the plunger operates. In a modified construction, the plunger rod bears directly on the end of the float-chamber needle valve, the oil chamber being below the piston, whilst the leak-preventing tip is formed on the upper surface of the plunger.
Patent GB-1357138-A (GB)
Title: Surface tension method of and apparatus for separating immiscible liquids
IPC: B01D17/02
Filed: 1971-05-28
Abstract: 1357138 Removing floating oil from water TRW Ine 28 May 1971 [29 June 1970] 17937/71 Heading B7A [Also in Divisions B1 and E1] Floating oil is removed from open water by bringing it into contact with one side of a wire mesh screen 222, the screen forming one wall of a chamber 226 previously filled with oil to wet the screen therewith, a pressure difference across the screen 222 being so controlled as to draw oil through its apertures while being insufficient to draw water through such apertures as are bridged by an oil-water interface against the surface tension thereof. A stainless steel mesh of 50 x 250 (U.S. standard) and a pressure of 2 inches water are exemplified. Fig. 9 shows apparatus adapted to float at rest or be pushed about under a pier, wherein a pump 220 induces flow of surface oil and water through annular gap 208 and wherein an oil removal pump attached to outlet 228 is controlled by differential pressure monitor 230. Figs. 10, 11 (not shown) illustrate a simpler model comprising a flexible, float supported conduit with mesh walls adapted to encircle an oil slick. In Fig. 7 several mesh screens in the form of rotating drums of star section (Fig. 8, not shown) are provided in a chamber 106 supported on catamaran hulls 104 in front of a motor driven oil receiving barge 117. The barge advances through an oil slick which is directed into the open front of chamber 106 by converging booms 114, vanes 112 stilling the wave action. Motor 134 rotates the drums so that their radial portions embrace oil globules and carry them under the surface, the oil then being drawn into the drums and discharged through manifold 144 and pump 150 into the barge 117. Pump 119 draws water from the rear of chamber 106 and discharges overboard. In Figs. 1-6 (not shown) the drums of Fig. 7 are replaced by an array of floating chambers (18), hinged together to follow wave movements and each having a screen floor. Fig. 2 illustrates how the pressure difference generated across the screen is controlled by adjusting a valve, the oil pump having a second inlet (88) through which more oil is drawn from the barge to compensate for progressive closing of the valve leading to chambers (18). Also shown is the arrangement for drawing oil from the barge to prime the chambers initially. Fig. 12 (not shown) illustrates how oil in chambers (18) may be recirculated through a heat exchanger, supplied with waste heat from the barge engine, for use in cold weather and/or with viscous oil.
Patent GB-596025-A (GB)
Title: Improvements in or relating to liquid containers
IPC: B65D25/42
Filed: 1945-07-13
Abstract: 596,025. Metal cans. SMITH & SONS (ENGLAND), Ltd., S., and WALTON, S. A. July 13, 1945, No. 18022. [Class 66] [Also in Group XXIX] A liquid container having a triangular prismatic form has a right angle contained between walls 10 of equal length whilst the top surface 11 is below the top of the side walls and slopes downwards to an aperture 16 adjacent apex 15 around which aperture is formed a depression 17. A flange 12 on the top surface 11 is rolled over with and is sweated to the side walls 10. The aperture 16 is formed with recesses 18 through which passes a plug 19 having correspondingly shaped projections 20 on which are formed cam surfaces which cause the plug 19 to tighten down on a sealing washer 22. A handle 23 flush with the side walls extends parallel to and adjacent with the side remote from the aperture.
Patent GB-334627-A (GB)
Title: An improved means for the curative treatment of gonorrhea
IPC: A61N1/30
Filed: 1929-06-12
Abstract: 334,627. Caesar, V. June 12, 1929. Urinary and generative organs, treating; catheters; probes; electric appliances; irrigators. -In treating gonorrhoea, a curative solution is introduced into the diseased organs by a catheter 1 and an interrupted direct electric current is applied through a silver wire 19 in the catheter serving as internal electrode, and through two external electrodes one placed below the organs and the other above. The lower electrode - consists of a spring saddle on which the patient sits, and which may carry a helical spring holder for the male organ, and the upper electrode consists of a wire belt or a spring frame held against the back. Liquid is supplied to the catheter through a plug valve 16 and may be drained away through a valve 21. The organs are prepared for treatment by insertion of electrically-heated probes which are arranged so that different parts are heated to different degrees either by forming the various parts or the coverings of the parts of materials of different heat conductivity, such as rubber, metal, silk, or cotton.
Patent GB-327342-A (GB)
Title: Driving pulley for ropes or chains, provided with gripping jaws
IPC: F16H55/50
Filed: 1929-06-12
Abstract: 327,342. Evans, W. E., (Ges. f³r F÷rderanlagen E. Heckel). June 12, 1929. Pulleys; chain wheels.- In order to overcome the undesirable effects of centrifugal force on the gripping- jaws of a clip pulley for rope or chain gearing, the jaws are provided with a buffer device, preferably acting radially and operated by air, liquid, spring, or other elastic means, or by a combination of any of these means. In the construction shown, a cylinder element 5 is connected by a pair of arms 6 to the pivot bolt 7 of gripping jaws 2. A co-operating piston element 8 is connected to the pulley rim 1. In order to keep the section of the rim as small as possible, the device may be outside the rim and be protected from dirt and the like by suitable enclosing means. The cylinder is provided with a series of holes 12 which become masked successively by the piston as the jaws travel outwards and provide a gradually increasing braking effect. Regulation of the point at which the buffer effect commences is provided by a check nut 10. In the case of the spring buffer device, a gradual braking effect is obtained by the provision of springs of different lengths which may be telescoped into each other. An additional spring 11 is provided to open the gripping-jaws. The device renders unnecessary the usual retaining-projections 14.
Patent GB-1379155-A (GB)
Title: Traction and buffing gear for automatic central buffer couplings  of rail vehicles
IPC: B61G9/10
Filed: 1972-04-19
Abstract: 1379155 Rail vehicle combined buff and draw gear GERMANY MINISTRY OF TRANSPORT 19 April 1972 18158/72 Heading B7T Rail vehicle combined buff and draw gear comprises a housing 19, a coupler arm 2 pivoted on a pin 3 to the housing, a main spring assembly 6 within the housing and bearing via the end 15 of a tube 15<SP>1</SP> on a pressure plate 8, and a plunger 7 extending through the plate, which plunger is acted on by a spring assembly 10 to spring load the clearance between the rear end 1 of arm 2 and the forward face of plate 8. The assembly 10 is located within the forward one of a pair of pre-stressing cups 5, 5 of the assembly 6 connected by rod 13, and is retained between a plate 12 located on the rod and a further pre-stressing cup 11. The plunger is formed with a shoulder 9 which abuts plate 8 and a guide tube 18 which extends into cup 5.
Patent GB-1353889-A (GB)
Title: Door frame or the like
IPC: E06B1/08
Filed: 1972-04-19
Abstract: 1353889 Door frames A BURGERS 19 April 1972 [20 April 1971 2 Feb 1972] 18191/72 Heading E1J A frame comprises two side members 2 secured on opposite sides of a wall by dowels 6, and joined to an end member 1 by further dowels 11. Dowels 6 and 11 are parallel. Surfaces 8 may be glued together or slightly spaced. An L-shaped member 12, 13 of synthetic rubber lines a door receiving recess. Mitred ends of adjacent cladding members are located by dowels (29, Fig. 2, not shown) and joined by a pin (26) secured by a nail through hole (27) and having a head engaging an eccentric wedge of a locking member (24) rotatable in a hole (23). The frame is of wood, plastics or iron.
Patent GB-774952-A (GB)
Title: Improvements in or relating to ovens, particularly of domestic and heavy duty stoves, cookers and ranges
IPC: F24C15/08
Filed: 1955-06-23
Abstract: 774,952. Cooking stoves. CHRISTIE, W. R. June 23, 1955 [July 3, 1954], No. 18222/55. Class 126 In an oven having double walls forming a jacket containing fluid, the outside shell of the jacket being heated and heat transferred to the inside shell by convectional circulaton, an intermediate shell divides the jacket into inner and outer zones. The side and bottom walls of an oven are in the form of an air jacket with an inner wall 14 and an outer wall 12. An intermediate shell 21 extends between the front and rear closures of the jacket. Gaps 24, 25 at the top of the intermediate shell allow air heated by any suitable means applied to an external side wall to circulate into the inner part of the jacket round the oven and back by way of the outer part of the jacket.
Patent GB-130336-A (GB)
Title: Method of and Apparatus for Producing Grooves in Tubes.
IPC: B21C37/15
Filed: 1919-07-23
Abstract: 130,336. Ternitzer Stahl-und Eisenwerke van Schoeller & Co. March 27, 1918, [Convention date]. Drawing; mandrels.-Rifling and other grooves are produced in the interior of tubular articles, that may be closed at one end, by pushing through a die whilst mounted on a correspondingly rifled or grooved mandrel. The mandrel 2 has a ball race 9 mounted with play so that contact takes place at 11 during the drawing stroke, the ball race coming into action during the withdrawal of the mandrel from the work. The application to gun, gas-projecting, and bomb-throwing tubes is stated.
Patent GB-706795-A (GB)
Title: Improvements in or relating to bearing assemblies
Inventor: MITCHELL DAVID
IPC: F16C33/12
Filed: 1951-08-03
Abstract: A bearing brass (see Group XXXIV), is of porous molybdenum and is coated with molybdenum disulphide over the bearing surface and to a lesser extent within the pores.  The brass is placed in a gas-tight container in a furnace, and the container is flushed with nitrogen for about thirty minutes to remove air.  The brass is then heated to a temperature of about 800 DEG C. and the nitrogen in the container is replaced by dry hydrogen sulphide gas which is circulated for about ten minutes with a gas flow of about 500 c.c./min. for each square inch of molybdenum surface to be sulphided.  Gas flow of hydrogen sulphide is then reduced to about 30 c.c./min. per square inch of surface to be treated, and maintained for another twenty minutes.  The container is then flushed with nitrogen and allowed to cool to room temperature.
Patent GB-920044-A (GB)
Title: Anti-spill device for use in the loading of waggons
IPC: B65G67/00
Filed: 1961-05-19
Abstract: 920,044. Filling moving trains of wagons. STAMICARBON N.V. May 19, 1961 [May 20, 1960], No. 18415/61. Class 78 (4). Devices 8, 9 (Fig. 1) carried by an endless chain 10 and preventing material from a hopper 5 falling between the gaps between wagons 1, 2, 3 in a train are driven, through abutments 15, by the trailing wagon 3 of each pair 2, 3, instead of by the leading wagon. A retracting bolt 16 may prevent the leading wagon from overrunning. The bolt 16 may be mounted as shown in Fig. 2 to fall into operative position by gravity when a spring-loaded bolt 19 is released by engagement of a bell-crank 70 is engaged by the front wall of the trailing wagon. The bolt 20 is retracted by gravity when the member 8 reaches the return run of the train. The invention may be applied to the arrangement described in Specification 916,389.