baber/WOPTO huggingface dataset:
Patent GB-729291-A (GB)
Title: Improvements in or relating to stoppers
IPC: B65D39/16
Filed: 1953-11-20
Abstract: 729,291. Stoppers. MARCEL, H. Nov. 20, 1953 [Nov. 24, 1952 ; Jan. 10, 1953 ; Nov. 4, 1953], No. 32211/53. Class 125 (3). A hollow stopper of polyvinyl chloride, polythene or the like with circular ribs 1b has the head 2 and body 1 made as separate parts of the same or different material and fixed together, the body having cavities 2e which house projections 2c provided on the inside of the head which as shown is transparent and covers a thin decorative sheet 3.
Patent GB-688034-A (GB)
Title: Improvements relating to protective covers or sleeves for collapsible tubes for holding pastes and other extrudable materials
IPC: B65D25/36
Filed: 1949-12-15
Abstract: 688,034. Casings for collapsable tubes. BICKLE, H. M. Dec. 14, 1950 [Dec. 15, 1949; March 6. 1950], Nos. 32259/49 and 5584/50. Classes 66 and 94(ii) A collapsable tube 20 is fitted with a protective sleeve or cover 22 formed from a blank of cardboard &c. scored at 16, 17, 18 to provide a divergent lower end to accommodate the flattened end of the tube 20 which may be corrugated to reduce its width and allow the tube to be inserted after which the corrugations are smoothed out. The shoulder of the tube 20 and the upper edge of the sleeve 22 may be covered by a ring 25 made from metal or plastic or tape.
Patent GB-447124-A (GB)
Title: Improvements in or relating to cycle lamps
IPC: F21V27/00
Filed: 1934-11-09
Abstract: 447,124. Taking up slack of flexible conductors. EVER READY CO. (GREAT BRITAIN), Ltd., Hercules Place, Holloway, and SHEPPARD, A. H., Beechwood, Broad Walk, Winchmore Hill, both in London. Nov. 9, 1934, No. 32343. [Class 78 (ii)] [See also Group XI] In an electric battery lamp in which the lamp casing is detachable from the battery casing for use in signalling, the flexible conductor 27 is wound on a spring drum 31 in the lamp casing 17, one lead being connected to an insulated spring contact 40 and the other with the bulb-holder 19<a>. A key 35 normally engages one of a series of spring-tongues 38 for locking the drum and is released by pressing inwardly a spring-pressed spindle 36 by means of a push button 37.
Patent GB-165878-A (GB)
Title: Tobacco stem rolling and leaf booking machines
IPC: A24B5/08
Filed: 1919-12-24
Abstract: 165,878. Marks, E. C. R., (Universal Tobacco Machine Co.). Dec. 24, 1919. Tobacco. - Tobacco leaves are passed between rollers which crush the stem without removing it from the leaf and are then booked by a belt and drum device. Special arrangements of knives for cleaning the rollers are described. The rollers B, C are carried on a pivoted bracket D which can be turned back aginst stops to give access to the rollers and knives. The rollers are mounted in bearing-blocks 10 pressed together by screws 12 against the action of springs 11. The upper roller B is cleaned by a knife 13 mounted on a pivot 26, Fig. 6, transverse to the axis of the rollers and carried by an arm 14 pivoted on an arm 16 which itself is pivoted to the bracket D. The lower roller C is cleaned by a knife 19 mounted on a bar 20 which also carries a roller 22 for the booking belt C and is mounted on a second pivot 26 similar to the first and carried by a bar 23 which carries a second roller 25 for the belt G and is itself pivoted to the frame of the machine so that it can be turned upwards and backwards to give access to the rollers B, C. The bar 20 also carries a grooved roller 29 mounted above the belt and a guide-plate 28 provided with fingers entering the grooves in the roll 29 and sight holes for watching the leaf as it passes. The belt a passes round the booking-drum F and is held against it by a roller 36 mounted on links 37, 39, 39<1> so that it can be moved with the belt into the position shown by the dotted line. The belt is formed with thickened edges which enter grooves in the rollers over which it passes. To give room for the leaves between the roller 36 and the drum F the roller is formed as shown in Fig. 7 of two separate portions sliding on a spindle 7 and held apart against blocks 37 on the spindle by a spring 8, thus allowing the belt to yield. The apparatus is driven from a shaft 56 operated through a clutch 76, Fig. 2, which is connected and disconnected by a treadle which also operates a movable stop 101 projecting into the path of a projection 100 carried by a sleeve 65 rotating with a shaft 66 so that when the treadle is depressed and released the machine is started and runs until the shaft 66 has made a complete revolution. The booking drum is driven through a gear wheel 62 mounted on the sleeve 65 and adapted to be connected with it by a sliding key 68, in which case the drum F makes one revolution for each revolution of the shaft 66 and the leaves are booked in a single file. The sleeve. 65 however may be disconnected from the gear wheel 62 and connected to a gear wheel 67 which meshes with other gears so arranged that in this case the drum F makes half a revolution for one revolution of the shaft 66 and the leaves are booked in two piles.
Patent GB-715600-A (GB)
Title: Improvements in and relating to pressure differential valves
IPC: F16K31/08
Filed: 1952-12-22
Abstract: 715,600. Fluid-actuated valves. GENERAL ELECTRIC CO. Dec. 22, 1952 [Dec. 29, 1951] No. 32445/52. Class 135 A valve member 5 biased towards a seat 4 by its own weight, or by a spring, to maintain a certain pressure differential between the inlet 2 and outlet 3 carries an armature 7 which is attracted by the poles 9 of a vertically adjustable permanent magnet whereby the effective biasing force on the valve member may be varied. The arrangement is such that the vertical bias exerted by the magnet varies as the valve opens so as to stabilize the action of the valve.
Patent GB-1028470-A (GB)
Title: Boom for retention of oil spillages on water
IPC: E02B15/06
Filed: 1963-08-16
Abstract: 1,028,470. Floating oil spillage booms. BRITISH PETROLEUM CO. Ltd. AND P. G. BRACKLEY. July 22, 1964 [Aug. 16, 1963], No. 32462/63. Heading E1H. A boom for the retention of oil spillage on water comprises resilient foam material 11 or 17 (Figs. 1 and 3, not shown) having one or more buoyancy chambers 12 or 18 extending along the length thereof and interiorly lined or coated with material 13 or 19 non-permeable to air or liquids. The buoyancy chamber(s) may have means for inflation.
Patent GB-434063-A (GB)
Title: Improvements in nut threading machines
IPC: B23G1/18
Filed: 1934-11-10
Abstract: 434,063. Tapping nuts. DEHN, F. B., 103, Kingsway, London.-(Sherbinin, E. M. de; 5720, Rising Sun Avenue, Philadelphia, U.S.A., Walker, H. B. ; 2, Bloor Street, Toronto, Canada, and Kroupsky, G. ; 956, 5th Avenue, New York, U.S.A.) Nov. 10, 1934, No. 32469. [Class 83 (iii)] A machine for tapping nuts with corners, has a driving bushing surrounding a tap and relatively rotatable thereto the bushing having a number of internal lands each adapted to engage one side of a corner of the nut, a clearance space being provided between each land part of which has a radius equal to the distance from the centre of the nut to a circle touching the corners. The driving bushing 31, Figs. 1 and 5, which is keyed to a sleeve rotated by gearing, surrounds the curved-shank stationary tap 26 and has three lands 38 along its bore adapted to engage alternate corners of an hexagonal nut, a clearance space 39, 40 being provided for the ready passage of chips and coolant. The nuts are fed down a shoot 23 and pressed, by a hollow plunger 25 carrying coolant to the tap, into a positioning collar 42 ; the latter, which rotates with the driving bushing, has three radially arranged spring- pressed plungers 46 with conical heads serving to rotate a nut, which might otherwise foul the lands 38, into such a position that they pass freely into the driving bush. The clearance space 39 is bounded by an arc of radius equal to that of the nut corners so that the nut is correctly centred prior to its being driven around by the lands 38.
Patent GB-920793-A (GB)
Title: Improvements in jet-driven bladed rotors
IPC: B64C27/18
Filed: 1961-09-11
Abstract: 920,793. Helicopter rotors. DORNIER-WERKE G.m.b.H. Sept. 11, 1961 [Sept. 17, 1960], No. 32470/61. Class 4. A helicopter rotor has jet driven blades 26 suspended from rotor hub 1 by two spring packets 3, which take up centrifugal forces on the blades, and inelastic intermediate elements 9 which adjust the angular position of the blades and which, in operation, are subject only to the torsional stresses produced on adjustment of the angular position of the blades. The spring packets 3 are connected to the hub 1 by pairs of plates 2, 2<SP>1</SP> and to the blades by plates 20 and supports 21, 22. Gas for driving the blades is supplied via fixed conduits 28, hub 1, and elastic tubes 13. An element 5 in column 27 and hub 1 controls the position of elements 9 through levers 5<SP>1</SP>, 8<SP>1</SP> and levers 8 pivoted at 6 to hub 1, the elements 9 being connected to blades 26 via forks 19. When inoperative, droop of the blades is limited by abutment of parts 17, 18 and 10, 11 of the spar 15, element 9 and rotor hub 1.
Patent GB-531164-A (GB)
Title: Improvements in or relating to speed control mechanism for the auxiliary drives of an internal combustion engine
IPC: F01P7/04
Filed: 1939-06-23
Abstract: 531,164. Variable-speed gearing. PARAVICINI, T. P. DE. June 23, 1939, No. 32527. Divided out of 519,670. [Class 80 (ii)] Epicyclic or differential gearing for driving internal combustion engine auxiliaries comprises three coaxial members a, d<4>, h. The skew-gear x on the crankshaft drives the two-part shaft a and, through the skew-gears v, y, auxiliaries such as the camshaft, fuelinjection pumps and ignition devices at a fixed speed relative to the engine. The shaft a is built up to form a cage for planet-gears b<3> engaging a sun-gear g<2> and the annulus h. From the gear g<2> is driven an oil-pump p having spring-loaded relief valves. Teeth z on the annulus h drive a gear z<1> actuating the cooling fan, water circulating pump and dynamo. Free-wheel mechanism w between the shafts a, d<4> causes the system to rotate solid at low crankshaft speeds. At higher speeds the shaft d<4> overruns the shaft a, resulting in a lower speed transmission to the auxiliaries driven by the gear z<1>.
Patent GB-428797-A (GB)
Title: Improvements in and relating to prepayment meter mechanism
IPC: G07F15/08
Filed: 1933-11-22
Abstract: 428,797. Prepayment mechanism for meters. PARKINSON & COWAN (GAS METERS), Ltd., Terminal House, Grosvenor Gardens, Buckingham Palace Road, PARKINSON, B. R., and WALKER, H. L., Fitzalan Street Works, Kennington Road, both in London. Nov. 22, 1933, No. 32591. [Class 27] Price-changing mechanism.-In a prepayment meter in which the quantity of commodity supplied for a coin is automatically altered after the delivery of a predetermined quantity, the meter spindle 1, Fig. 1, has a pair of unequal wheels 2, 3 to mesh alternatively with corresponding wheels 4, 5 rigidly connected together and slidably mounted on a lay-shaft 6, the wheel 4 being constantly in mesh with a wheel 7 which is carried by a sleeve 8 surrounding the spindle 1. A worm 9 on the sleeve 8 is operatively connected to a cam 10 controlling the valve of the meter. The wheel 4, when it is in mesh with the wheel 2, drives through gearing 11, 12, 13, 14, 15, Figs. 3 and 4, a tubular shaft 16<a> on which a cam disc 19 having a pin 21 is frictionally mounted, a second calibrated disc 19<a> being adjustably mounted on the disc 19 and carrying a pin 20. The disc 19 is driven by the meter in the direction of the arrow B, Fig. 1, and, after a predetermined supply, the pin 21 disengages a hooked member 22 from a frame plate 17. The member 22 is linked to a pivoted selector member 23, which, under the action of a spring 26, slides the wheels 4, 5 on the shaft 6 to disengage the wheels 2, 4 and bring the wheels 3, 5 into mesh. The meter valve is now closed at a different rate, and the wheel 4 is disengaged from the wheel 11 so that the cam disc 19 is no longer driven. After a period, the disc 19 is reset manually to restore the original rate by turning a shaft 28 by a key, this shaft having a wheel 27 meshing with teeth on the periphery of the disc 19. The pin 20 on the disc 19<a> returns the member 22 and the selector 23 returns the wheels 4, 5 to their initial position. The amount to be supplied at the primary rate is determined by adjusting the disc 19<a> relatively to the disc 19 to vary the distance between the pins 20, 21. Indicators.-The selector 23 is connected by a link 32 to a lever 30 carrying an indicator 29 showing which rate is in force and which is visible through a window 33. Money-boxes.-The shaft 28 may be arranged so that the disc 19 must be reset to the original rate before the money-box can be opened, the shaft 28, for this purpose, having a radial projection which co-operates with a spring loaded plunger engaging an abutment on the money-box.
Patent GB-505856-A (GB)
Title: Improvements in and relating to wave front indicators
IPC: G01S1/72
Filed: 1937-11-26
Abstract: 505,856. Locating sounds and like vibrations. HUGHES & SON, Ltd., H., SPROULE, D. O., and HUGHES, A. J. Nov. 26, 1937, No. 32670. [Class 118 (ii)] In a wave-front indicator, two or more receivers on a base line feed electrical impulses to recorders arranged in similar relative positions to the receivers, the direct:on of the wavefront, being directly ascertained from the angular relation of the recorded pulses. Sound receivers R<1>, R' feed, through amplifiers, an electro-chemical recorder having two styli S<1>, S<2> carried by a constantly rotated arm a, indications T', T<2> being given on receipt of the, sound by the receivers. In order to determine the bearing angle of the wave front, the transparent parts 1, 2, Fig. 4, are arranged with the pivot o at the centre of rotation O of the arm a the edges being arranged to touch the leading edges of the traces T', T<2>. The teeth 3 engaging the 'pinion 4, cause the pointer 7 to rotate to indicate the actual bearing angle. If the distance S', S<2> bears the correct relation to the distance apart of the receivers then tan#=sin#o where #o is the bearing angle and # the angle between the traces, so that for small angles # = #o. According to the construction shown in Fig. 5, # may be determined using a tee-square construction in which a sector 12 is fitted to one curve and the arm 14 rotated until the leading edge of the trace T<1>. coincides with pivot 18 whereupon the, arm 17 is rotated to bring the index line 19 to the other trace, thus indicating on the scale the bearing angle. In a similar manner, when using rectiliriearly-moving styli, a disc having ruled lines may be rotated until one line takes up the position joining the leading edges of the traces, an index moving over a circular scale to give the bearing angle. Alternatively the equation may be solved mechanically, Fig. 9, the disc 22 being rotated to displace the lever 30 pivoted to the lever 24, having a length equal to the radius of the disc whereby the slide 32 is moved, in turn displacing the lever 37 to rotate the pointer 40. The distances A, R are made equal. To remove the ambiguity as to which side of the base line the sound is coming from, a third receiver may be employed arranged off the base line. In a further modification the receivers feed two cathode ray tubes arranged at right-angles and viewed through a semireflecting surface.
Patent GB-1361291-A (GB)
Title: Lubricating apparatus
IPC: F16N7/30
Filed: 1971-07-13
Abstract: 1361291 Reciprocating pumps; compressed air motors McCORD CORP 13 July 1971 [3 Aug 1970] 32743/71 Headings F1A and F1M [Also in Division F2] A pump for supplying lubricant to compressed air-driven tools is actuated by the tool air supply, and comprises a pumping piston 68 reciprocated by an air motor piston 62, 24. In operation, when the tool is operated, the pressure at the outlet end 12 of the air supply conduit 8 falls causing air supply valve 14 to open, whereupon valve 52 also opens to connect air pressure to motor chamber 26 via an adjustable needle valve 54 for controlling the operating speed of the air motor, and hence the pump. The air pressure in chamber 26 acts on piston face 25 and flange 32 of plunger 28 to move the piston and plunger to the left, thereby effecting the delivery stroke of pumping piston 68. When stop member 46 on plunger 28 engages the end wall 20, plunger 28 disengages from piston 24, and is moved to the right by air pressure acting on its left-hand face 36. In the right-hand end position of the plunger, a vent port 44 is uncovered and vents chamber 26 via passage 42. Piston 62, 24 is then returned to the right by air pressure supplied to chamber 63 via passage 66, piston 68 being returned by spring 69.
Patent GB-798943-A (GB)
Title: Improvements in and relating to machine tools
IPC: B23Q5/04
Filed: 1954-11-12
Abstract: 798,943. Turning. WALDRICH, O. Nov. 12, 1954 [Nov. 16, 1953], No. 32878/54. Class 83 (3). [Also in Groups XXIII, XXIV and XXXVII] A machine-tool in which a heavy workpiece is supported for rotation by plain bearings, e.g. a heavy rollgrinding machine or a heavy rollturning lathe, is provided with an auxiliary drive including a speed change gear of high reduction ratio additional to the main drive for rotating the work, the auxiliary drive being used only during starting. The faceplate 5 is driven from a main motor 6 through a gear 7, variable within the necessary limits for normal running and V-belts 9, 13. An auxiliary low-power motor 16 drives a gear 19 through worm gearing 17, 18. The gear 19 meshes with a gear 15 carried by an arm 20 rotatable about the shaft of gears 18, 19 so that it can be brought into mesh with teeth 14 on the interior of the face-plate 5. To start the rotation of the work, the auxiliary motor 16 is switched on, and an electromagnet 21 is momentary energized to engage gear 15 with teeth 14, this engagement being maintained as long as substantial torque is being transmitted. As the work accelerates the torque transmitted by the auxiliary drive decreases whereby the gear 15 disengages, either by the weight of the parts or under the action of a spring, from teeth 14, and the auxiliary drive becomes ineffective. The main motor 6 may be started simultaneously with the auxiliary motor 16 or subsequently, a free-wheel may be included in the belt gearing. In a modification, Fig. 3, the main drive MD and auxiliary drive AD are driven by a single motor M; means SC for permitting slip are provided between MD and the work WP and a slipcoupling, free-wheel FW or uncoupling device is provided between AD and WP. Further modifications shown in Figs. 4, 5 and 6 include clutches C1, C2 and C3 controlled by a centrifugal governor CC.
Patent GB-828451-A (GB)
Title: Improvements relating to fluid-operated computing apparatus
Inventor: HULLEY BERNARD JAMES
IPC: G01L15/00
Filed: 1956-10-29
Abstract: 828,451. Fluid-pressure servomotor control systems. SUNVIC CONTROLS Ltd. Oct. 8, 1957 [Oct. 29, 1956], No. 32901/56. Class 135. A fluid-actuated computing apparatus produces an output pressure which is the product or quotient of two input pressures or is the square, square root or reciprocal of one input pressure. A lever 1 movable about a fulcrum 2 has pivoted thereto at 4 a two-armed frame 3 (only one arm being shown). Between the frame 3 and the lever 1 is a bellows B, the fluid-pressure P 1  in which determines the distance " x." A push-rod 7 is located between a block 5 on the frame 3 and a block 10 on a diaphragm 9 subject to the pressure P 2  in a chamber A, which pressure tends to rock the lever 1 about the fulcrum 2. The pressure P 3  in a chamber C acting on a diaphragm 11 exerts a counter-balancing moment on the lever 1. Air is supplied via pipe 15 to selectively operable nozzles N 1 , N 2  and the bellows B and chambers A, C have supply pipes 13, 12, 12<SP>1</SP>. By opening and closing selected valves of the series V 1 -V 7  the back pressure of the selected nozzle N 1 , N 2  is fed to chamber C or A or to chamber A and bellows B. If the nozzle back-pressure is fed to chamber C the output pressure P 3  is proportional to the product of the input pressures P 1  and P 2  and if the input pressures are one and the same the pressure P 3  is proportional to the square of the input pressure. If the nozzle back pressure is fed to the chamber A the output pressure P 2  is proportional to the ratio of the input pressures P 3  to P 1  and if the pressure P 3  is a fixed reference pressure or is replaced by a spring the pressure P 2  is proportional to the reciprocal of the input P 1 . If the nozzle back pressure, i.e. the output pressure, is applied to bellows B and the chamber A while one input pressure is applied to chamber C, the output pressure is proportional to the square root of the input pressure.
Patent GB-780150-A (GB)
Title: Improved speed controlling system for polyphase commutator motors
IPC: B66C13/26
Filed: 1955-11-17
Abstract: 780,150. Control of A.C. motors. TOYO DENKI SEIZO KABUSHIKI KAISHA. Nov. 17, 1955 [Nov. 30, 1954], No. 32968/55. Class 38 (3). [Also in Group XXXV] A polyphase commutator motor driving a winch is adapted to operate with series or shunt characteristics and is provided with field windings 1, 1<SP>1</SP>, compensating winding 2, and rotor winding 7 supplied through transformer 3, 4. On the first hoisting notch of the motor controller, switches 8, 11, 14 are closed so that the compensating winding 2 is connected in parallel with a portion of the transformer primary winding 3 and the motor operates at a low speed with a shunt characteristic, Fig. 2 (not shown). When switch 12 is closed instead of switch 11 the speed of the motor increases. The control of the motor speed may be effected through tappings in the secondary winding of the transformer instead of the primary. Closure of switches 8, 14, 15 short-circuits the rotor winding through the transformer and the motor runs as an induction motor. When only the switches 8, 15 are closed, the stator windings and the transformer primary winding are connected in series, and the motor operates with a series characteristic. If the connection from the source to the winding 1 is transferred from tap 8 to tap 10, the hoisting speed is further increased. During the lowering operation the motor acts as a regenerative brake, the contacts 8, 10 being opened and contact 9 closed to energize winding 11 instead of the winding 1. On the fourth lowering notch, switches 9, 13, 14 are closed so that the phase of the transformer primary winding is reversed and the motor operates in excess of synchronous speed. In a modification, an auxiliary stator winding 5 is provided in transformer relation with the compensating winding 2, and the voltage of this auxiliary winding is applied to the brushes for the motor to operate with a shunt characteristic. The transformer 3, 4 is only used for operation as a series motor. Reactors 6, 7 are included selectively in series with the winding 2 for speed regulation, and resistor 20 is placed in the rotor circuit for this purpose.