baber/WOPTO huggingface dataset:
Patent GB-1062057-A (GB)
Title: Zoom mechanism for cameras
IPC: G03B17/14
Filed: 1964-06-10
Abstract: 1,062,057. Cine cameras; zoom lenses. EASTMAN KODAK CO. June 10, 1964 [June 13, 1963], No. 24024/64. Headings G2E and G2J. A cine or other camera has a zoom lens 13 whose element 17 is movable, through coupling cables 70, 71, by a frame 20 having racks 21, 22 which are selectively engaged by the displacement up or down of motor-driven pinion gear 40 in response to tilting of its mounting bracket 34 by a manual control means 44 spring-biased to a neutral position in which both racks and also the film drive are disengaged. The magnification of the viewfinder lens system is simultaneously changed as finder lens element 19 is moved with frame 20. The lenses may also be zoomed manually by rotation of knob 60 whose shaft 61 turns a pinion gear 62 engaging a further rack 23 on frame 20. Racks 21, 22 have cut-outs 24 to receive gear 40 and so limit the travel of frame 20. Gear 40 is carried on shaft 37 having a worm wheel 37 engaging worm 35 driven by variable speed electric motor 30. When fingerpiece 46 is raised, the film drive mechanism is first started, the bracket 34 is then moved anticlockwise about shaft 31 through the engagement of pin 42 on arm 41 with the cam slot 48a of control member 44. Pinion 40 meshes with rack 22 for a wide-angle movement of elements 17 and 19. Further raising of fingerpiece 46 switches on motor 30 as arm 49 contacts variable resistance 51 whose value is set by the position of the fingerpiece to control the speed of motor 30. Reverse tilting for telescopic lens movements is provided by lowering fingerpiece 46, similar motor speed control being provided with resistance 50. Cam slot 48 has a central portion corresponding to the neutral setting of bracket 34 and gear 40. A friction drive may be used between motor 30 and frame 20.
Patent GB-333730-A (GB)
Title: Aggregates weighing device for concrete mixers
IPC: B28C7/04
Filed: 1929-08-06
Abstract: 333,730. Withers, J. S., (Koehring Co.). Aug. 6, 1929. Apparatus fitted to mixing-machines. - In a concrete mixing machine comprising a skip C pivoted to the frame A and adapted to be lifted from a lower position in which it receives materials to an upper position in which it discharges the materials into a mixing drum B, weighing apparatus including indicia means is connected to the skip for determining the weight of materials supplied to the latter. As shown in Fig. 1, one end of a spring-loaded scale beam 8 pivoted to the frame is connected by a cable 18 to the skip, the other end terminating in a pointer 11 co-operating with indicia 12. When a predetermined weight of materials has been supplied to the skip, which is normally maintained out of contact with the ground, the beam abuts against and moves upwardly a slidable member 20 having a tapered head 23 which moves a lever 6 so as to actuate a clutch 4, thereby causing a winding drum 1 to rotate and lift the skip by a cable 2. In the form shown in Fig. 3, the weighing mechanism is carried wholly by the skip. A platform 2<a> arranged below the skip so as to engage the ground when the skip is in lowered position is carried by pairs of equalizing levers 3<a> on both sides of the skip, the levers being pivoted to the skip at 4<a>. Standards 6<a> secured to the platform are guided in antifriction bearings 7<a> on the skip. The upper ends of the levers are connected to the skip by springs 11<a>, and one of each pair of levers is provided with a pointer 6<a> co-operating with indicia 10<a>. Adjustable stops 13<a> are mounted on the skip to limit the movement of the levers.
Patent GB-724100-A (GB)
Title: Improvements in sheet delivery apparatus for stop-cylinder printing machines
IPC: B65H29/34
Filed: 1951-10-15
Abstract: 724,100. Sheet-delivery apparatus. MASCHINENFABRIK JOHANNISBERG GES. Oct. 15, 1951 [Oct. 14, 1950], No. 24028/51. Class 100 (1). A sheet-delivery apparatus for stop-cylinder printing machines and comprising endless gripper chains driven continuously at a non- uniform speed, which remove sheets from an intermittently driven impression cylinder, is characterized in that the chains carry only a single set of grippers by which the sheets, after being turned over, are transferred to a reciprocating gripper carriage. As shown, a sheet 11, Fig. 1, gripped by grippers 12 on the impression cylinder, is removed slowly by grippers 6 carried by slowly moving chains 5. The speed of the chains 5 is increased, while the sheet is supported by compressed air from pipes 7. The sheet is turned over as the chains move around chain wheels 4. The sheet is then removed from the grippers 6 by grippers 13 on a recipro. cating carriage moving at the same speed as grippers 6 at the time of removal. The carriage 8 co-operates with a stripping device 9 which pushes the sheet 11 on to a carriage extension 81 and strips a previously delivered sheet 11<SP>1</SP> from the extension 8, the sheet 11<SP>1</SP> dropping vertically, thus preventing smudging or damage to the sheet edges. Chain wheels 3 or 4 are driven through gearing, not shown, by a driven crank 16, Fig. 8, attached to a gear wheel 14 by a connecting rod 15, thus providing a non- uniform drive for the chains 5.
Patent GB-388434-A (GB)
Title: Improvements relating to overhead-valve internal combustion engines of the air-cooled type
IPC: F02F7/00
Filed: 1931-08-27
Abstract: 388,434. Casings; cooling. NEW IMPERIAL MOTORS, Ltd. and DOWNS, N. T., Spring Road, Hall Green, Birming- ham. Aug. 27, 1931, No. 24083. [Class 7 (ii).] In a overhead-valve, air-cooled engine the spindles for the valve rockers d are carried by a detachable cover c which seats on valvespring pockets a<3> standing up from the head. The cover is substantially W-shaped to allow air to have access to ribs a2 on the centre part of the head. The valve rockers have inclined arms d<1>, d<2> ; the tappet rods e pass through casings e<1>. The pockets a<3> form lubricant reservoirs.
Patent GB-684922-A (GB)
Title: Improvements in electrically live wire fencing
IPC: H01B17/14
Filed: 1950-10-03
Abstract: 684,922. Fencing. STOREY, A. G. G. Oct. 1, 1951 [Oct. 3, 1950]. No. 24102/50. Class 45. Each part of a fencing post or post structure which contacts the ground has an electrical insulator in its length so that the post or structure above the insulator is electrically live e with wires supported by the post or structure. A corner post consists of two parts 1, 2, one having a corkscrew end for engaging the ground and each having a socket 4, the sockets being joined by a length of polythene which may have a metal core and which screws into the sockets to form a resilient electrically insulating connection. Stays for the post are also made in two parts the adjoining ends each being enclosed by a polythene socket 6, the two sockets being held together by a split clip 7 which is clamped over them. In a modification a double socket to take the adjoining ends may be used. The post is joined to two such stay rods by a wire connection having two eyes 8, 9, one for the post and one for two stays. The stay rods cause the eye 8 to frictionally engage the post. Intermediate posts are constructed in a similar manner to the stay rods.
Patent GB-411416-A (GB)
Title: Improvements in or relating to retroactive radio-receiving systems
IPC: H04B1/16
Filed: 1932-08-29
Abstract: 411,416. Valve detecting circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 29, 1932, No. 24104. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 5, 1932]. [Class 40 (v).] In a wireless receiver a valve having a tuned input circuit and an inductive back-coupling, has a condenser 4 and resistance 5 arranged in series across the tuned circuit to maintain reaction constant. The condenser may have a value of 10-12 cms. and the resistance a value of 10,000-43,000 ohms and may be additional to the usual grid condenser and grid leak.
Patent GB-434385-A (GB)
Title: Improvements in or relating to an electrical measuring instrument
IPC: G01R5/14
Filed: 1934-08-21
Abstract: 434,385. Current meters. STANTON, G. B., 310, Windsor Place, Brooklyn, New York, U.S.A. Aug. 21, 1934, No. 24109. Convention date, April 7. [Class 37] The alternating current component of the current in a conductor 2 carrying both alternating and direct currents is measured by means of an instrument comprising a magnetic member 1 adapted to surround the conductor, a winding 3 on the magnetic member, and a moving coil 6 carrying an indicating member 10, the moving coil being mounted in the air gap between pole pieces 4 on the magnetic member. The pole pieces are mounted on pivots 21, so that they can be turned, together with the moving coil and indicating member, into any desired position to facilitate reading the indications on a scale 12. The moving coil is pivotally mounted in a tubular member 14 which can be introduced into the air gap to a variable extent, and held in the selected position by the engagement of pawls on the pole pieces with recesses 11 in the tubular member. In order to adjust the instrument for different ranges of current, the winding 3 is connected in series with resistances 15, 16 and 17 having tapping points 15<1>, 16<1>, 17<1> to which one end of the moving coil 6 can be connected by a movable contact arm 18. By placing the latter on a stud 14<1> the coil 6 can be short-circuited. Additional series resistances 19 may be provided, if desired, and the winding 3 may be tapped to give additional ranges.
Patent GB-1149194-A (GB)
Title: Improvements in or relating to scarfing apparatus for ingots
IPC: B23K7/06
Filed: 1966-05-31
Abstract: 1,149,194. Flame desurfacing. VEREINIGTE OSTERREICHISCHE EISEN - UND STAHLWERKE A.G. 31 May, 1966 [9 June, 1965], No. 24124/66. Heading B3V. Apparatus for flame desurfacing vertical ingots 14, comprises individually movable burners 12 with spacing means 17 suspended from a column 5 movable in a horizontal direction. The column 5 is suspended from a frame 2 movable on skids or wheels 3 along rails 4 by an electric motor or hydraulic cylinder (23), Fig. 3 (not shown). A carriage 6 is vertically adjustable on column 5 by a rope (8), Fig. 3 (not shown), connected to an hydraulic jack (7) or an electric motor. Carriage 6 supports two guide rods 10 movable horizontally by an electric motor or an hydraulic cylinder 13. The rods carry a jib arm 11 from which the scarfing burners 12 are individually supported by individual mountings 22 biased outwardly by springs 16 but which may be held in a selected position by locking cylinders 18. The burners are resiliently mounted by springs 19 and carry water-cooled tubular feelers 17 engaging the workpiece. Heat radiation shields 21, which may be water-cooled, are provided. The desurfacing apparatus may be duplicated for scarfing two ingot surfaces simultaneously. A stationary or movable head may be provided for removing flue gas. The ingots 14 are preferably scarfed whilst hot and before charging into their soaking pits. The process may be controlled manually or by programmed control.
Patent GB-770985-A (GB)
Title: Improvements in or relating to ignitron circuit-arrangements
IPC: H05B7/02
Filed: 1955-08-22
Abstract: 770,985. Switching control. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 22, 1955 [Aug. 25, 1954], No. 24135/55. Class 38 (4). A circuit arrangement, e.g. for welding- apparatus, comprising two cross-connected ignitrons 1, 2, each of whose ignition electrode 5, 6 is connected to its respective anode 7, 8 through the cathode and anode of a respective .controllable gas- or oxygen-filled auxiliary discharge tube 9, 10, has the control electrodes of the auxiliary discharge tubes 9, 10 connected to an output terminal 11 of a single control apparatus 13 to the other output terminal 12 of which is connected the anodes of two recti. fiers 16, 17 oppositely connected in series between the ignition cathodes 14, 15. The rectifiers 16, 17 preferably are blocking layer rectifiers and each may be shunted by a resistor 18, 19. The control apparatus 13 supplies rectangular waveform positive voltage pulses to the control electrode of the auxiliary tubes 9, 10 which tubes alternately ignite when their anodes are positive and thereby to supply ignition current to their respective ignitron ignition electrode 6, 6 to ignite the ignitrons, possibly according to a give programme of current periods and pauses.
Patent GB-383673-A (GB)
Title: Improvements relating to high frequency signalling systems
IPC: H04B1/036
Filed: 1931-08-27
Abstract: 383,673. Condensers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Weir, I. R. ; 419, Union Street, Schenectady, and Richardson, L. W. ; 203, Seeley Street, Scotia, both in New York, U.S.A.) Aug. 27, 1931, No. 24139. Convention date, Aug. 27, 1930. [Class 38 (ii).] Radio transmitting apparatus, particularly for short waves, comprises a push-pull pair of valves 1, 2 of the water-cooled anode type, a pair of parallel plates 6, 7 connected to the respective anodes, and further interleaved airspaced plates 23 .. 31 extending from each main plate towards the other to form a condenser connected directly between the anodes. The capacity may be varied by removing or repositioning some of the plates 23 .. 31. These plates form substantially a cube in general external shape, and the outer plates 23, 27 and 26, 31 lie in the same planes so as to present the same capacity to ground and to surrounding conductors. Variation of capacity is also provided by a disc 33 arranged parallel to the plates 26, 31 and displaceable towards them by a threaded spindle 34. Neutralizing condensers connected between each anode and the opposite grid are supported between the outer pairs of parallel plates 5, 6 and 7, 8. One plate of each condenser comprises a number of removable horizontal rods 38 extending between plates 5, 6 ; the other plate 41 or 42 is parallel thereto and is supported on horizontal and vertical insulating rods 43<1>, 43. The neutralizing condensers are readily adjusted by means of screw-operated discs 50, 51. The grid oscillatory circuit comprises a coil 10<1> adjustable by rotating a conducting disc 21<1>. The grid circuit tuning condenser is mounted between parallel plates 56 and is similar to the anode-circuit condenser. In a modified arrangement, Fig. 2, the neutralizing condenser includes an additional fixed electrode 68 and the moving plate 51 is displaced to one side.
Patent GB-762100-A (GB)
Title: Improved appliance for use with air pressure lines for use as a vacuum cleaner or the like
IPC: A47L5/18
Filed: 1953-09-01
Abstract: 762,100. Suction cleaners; ejectors. CHURCH, H. and PARKER, J. F. Nov. 30, 1954 [Sept. 1, 1953], No. 24157/53. Classes 8(1) and 71 A suction cleaner comprises a suction hose connector 24 communicating with a dirt container 3, and through a filter 5, and a passage 9 with an ejector device 10 comprising a nozzle 11 connected to an air pressure hose 12, a number of venturi tubes 13 and an outlet 17. A rotatable valve 19 permits air to discharge through slots 18 or closes the outlet 17 and puts passages 21, 22 in communication with the discharge and connector 24, for use as a blower. As shown there are three tubes 13 which meet at a sharp point 14 the 'nozzle 11 may be axially adjustable.
Patent GB-330456-A (GB)
Title: Improved manufacture of india rubber carpets
IPC: B29D99/00
Filed: 1929-08-07
Abstract: 330,456. Fraja, S. de, and Minardi, E. Aug. 7, 1929. Moulding indiarubber carpets.-An indiarubber carpet with a. pattern on both faces is moulded in a box comprising upper and lower members 1, 2 each of which is cut to constitute a negative pattern of ribbed type, the ribs 4 forming the pattern on one face of the carpet being arranged to cross the ribs 5 forming the pattern on the other face so that only a small central thickness 3 of rubber is necessary.
Patent GB-484059-A (GB)
Title: Improvements in or relating to rove breasting plates for spinning, twisting, and like textile frames
IPC: D01H1/00
Filed: 1937-09-04
Abstract: 484,059. Breast plates for spinning &c. frames. LOW & CO., Ltd., J. F., and HUGGINSON, T. Sept. 4, 1937, No. 24201. [Class 120 (ii)] The breast plate of spinning, twisting, and like frames is formed with a convex roveengaging surface 4 and is angularly adjustable about a horizontal shaft 6, which is located at a distance therefrom less than the radius of curvature of the adjacent part of the surface, and nearer to the lower than to the upper edge of the plate, whereby small angular adjustment effects a large variation in the rove-contacting surface and in the length of roving between the plate and the nip of the rollers. The shaft 6 is bodily adjustable.
Patent GB-1280081-A (GB)
Title: Heat radiating unit
Inventor: KENNEDY CHESTER RALPH
IPC: F24H3/08
Filed: 1970-05-19
Abstract: 1280081 Convector space heater; unit heaters C R KENNEDY 19 May 1970 24202/70 Headings F4S and F4V [Also in Division H5] A heat radiating unit intended for use in a convector space heater, comprises a bank of externally-finned, vertically-spaced, series-connected liquid-filled tubes 14, all the tubes being inclined with adjacent tubes diverging from one another, a tube 10 containing an electric heating element 24 being connected to the lowest of the tubes 14, and an enclosed fluid circuit through the unit being completed by a return tube 34 interconnecting the tube 10 with the uppermost of the tubes 14. The unit also includes an expansion tube 12 and a thermostat 40 responsive the liquid temperature in the tubes. The tube 10 may be inclined as shown or vertical (Fig. 4). The heating element 24 preferably comprises a readily replacable electric resistance element supplied with current through conducting wires 28. In use, and as shown, the unit is arranged in a casing through which air from adjacent the ceiling is forced by a fan 56 through a duct 54 containing an interchangeable filter 64, downwardly to a heated-air outlet 52 at floor level. A room thermostat T controls stopping and starting of the fan and simultaneously actuates means (e.g. solenoid or motor) for positioning a valve plate 60 so that when the fan stops, the fan-air duct 54 is closed by the valve and an opening 58 in the upper region of the casing is uncovered whereby air can then flow through the casing by natural convection. The casing may be open at the back and a reflective sheet of aluminium foil placed against the wall behind the unit.
Patent GB-337091-A (GB)
Title: Preparation of digitalis glucoside
IPC: C07G3/00
Filed: 1929-08-08
Abstract: 337,091. Wellcome Foundation, Ltd., and Smith, S. Aug. 8, 1929. Digitalis glucosides. - A new glucoside is obtained by stirring the total glucosides of the leaf of digitalis lanata with acetone or methylethylketone, filtering, fractionally precipitating the filtrate by adding water, removing the solid which separates, adding salt to the clear liquid, drying the precipitate now formed, and extracting it with methyl or ethyl alcohol; on adding water to the solution and standing, crystals of the new glucoside separate. The product may be freed from more soluble glucosides by boiling it with small quantities of chloroform, acetone, or methylethylketone, and then recrystallizing from a solution in hot 80 per cent methyl or ethyl alcohol; it may also be crystallized by adding water or ether to a solution in pyridine. Further quantities of the glucoside may be obtained from the filtrate remaining after the precipitate formed by adding salt has been separated, by extraction with cold chloroform. The chloroform extract after evaporation is purified by stirring with acetone or methylethylketone, boiling with small quantities of chloroform, and crystallizing the sparingly soluble portion as before. Further quantities may also be obtained from the initial glucosides insoluble in acetone or methylethylketone and from the precipitate formed by adding water to the solution therein. In each case the residues are purified by fractional crystallization from hot dilute alcohol, boiling the less soluble fractions with acetone, methylethylketone, or choroform, and recrystallizing the undissolved portions as before. Properties of the new glucoside are described.
Patent GB-462034-A (GB)
Title: Improvements in or relating to heat interchanging means particularly for cooling milk
IPC: A01J9/04
Filed: 1935-08-30
Abstract: 462,034. Milk &c. coolers; hollow cylinders. PULSOMETER ENGINEERING CO., Ltd., and CLEWS, J. B. Aug. 30, 1935, No. 24277. [Classes 29 and 34 (i)] A stationary or rotatable heat - exchanger particularly for cooling milk consists of an outer cylinder 1 over which the milk flows from a trough 16 to a trough 17, and an inner cylinder 3 having enlarged ends secured by welding to the outer cylinder A to and fro path for the cooling fluid, e.g. water or vaporizable refrigerant, is formed between the cylinders by a ribbed plate 5 applied to the inner cylinder or by ribs pressed in either of the cylinders. The cooling fluid is supplied to, and passes from, the space between the cylinders through radial tubes 9, 11 respectively connected to a control pipe by which the exchanger is supported in brackets 14b. The pipe is provided with a relief orifice 18 closed by an elastic band. In a modification, a fluidtight joint is maintained between the ends of the cylinders, which are not secured together, by a gasket 20, Fig. 3, held in place by a plate 21, and the plate 5 is replaced by a gapped rubber band moulded on the inner cylinder.
Patent GB-1095845-A (GB)
Title: Die-layout machine
IPC: B43L13/00
Filed: 1966-06-01
Abstract: 1,095,845. Tools for setting-out work. WARD DIE-VISE CO. June 1, 1966 [Nov. 16, 1965], No. 24390/66. Heading B4X. Apparatus for marking out the rotary dies of a sheet rule blanking machine from a drawing comprises a die lay-out machine wherein compensation is automatically given for the curved surface of a drum, the reversal of the lay-out and the shrinkage due to the radial protrusion of the rule. The die lay-out machine comprises a frame 12 on which a pair of drums 14, 16 of slightly different diameters are mounted parallel and horizontally spaced from each other and arranged for rotation in opposite directions, the drum 16 having a smooth surface so that a lay-out drawing may be fixed thereon and the drum 14 being perforated in replica of a die drum. A pair of rods 30, 32 are mounted one above the other across the frame 12 there being provided a translating arm 34 which extends from a point above the top surface of the drum 14 to a point above the top surface of the drum 16 and which is secured to a frame 36 which embraces the topmost rod 30 through a sliding journal 38, the frame being provided with a steady rest comprising a pair of opposing screws 40 which lightly bear against the lower-most rod 32. Unless clamped by means of clamp screw 42, the journal 38 allows the arm 34 to be moved backwards parallel to the axis of the drums 14, 16. A lens and a reticule 44 are fastened to the end of the arm 34 in position to view the lay-out drawing 26 and a pen or scriber 46 is fixed to a handle 48 on the other end of the arm, the handle being depressed with the scriber 46 when desired to contact the drum 14. A plywood die plate D is temporarily secured to the surface of the drum 14 for receiving markings from the scriber corresponding to markings on the layout drawing 26. The drums are arranged for rotation in opposite directions in a one and one ratio by means of an intermediate pair of gears 18, 20 coupled to the drums, an overhead handdrive wheel 22 being linked to one of the gears through a chain and sprocket 24. Guided by the lens and reticule the operator moves the arm 34 or rotates the hand wheel 22 while the scriber is in contact with the die plate D. The scriber lay-out is then cut out by a saw or routing tool to accommodate the thickness of the usual steel rules.