baber/WOPTO huggingface dataset:
Patent GB-1425227-A (GB)
Title: Rotary positive displacement machine
IPC: F04C18/10
Filed: 1973-02-06
Abstract: 1425227 Rotary positive-displacement machines REGIE NATIONALE DES USINES RENAULT 6 Feb 1973 [8 Feb 1972] 5892/73 Heading F1F A rotary positive-displacement machine of the type having an N-lobed rotor d rotating in a planetary manner within an N + I-lobed stator c, such planetary motion being governed by KN- toothed pinion f fixed to an eccentric of the main shaft and being concentric with the eccentric so as to engage a K (N + I)-toothed g ring gear fixed to the stator and coaxial with the main shaft, comprises a pinion f 1  fixed to pinion f and indentical thereto, the pinion f 1  engaging a further ring gear g 1  which is not fixed but is eccentric with respect to said first ring gear g and is caused to execute a circular translatory motion by said pinion f 1 . The ring gear g 1  has a fluid distribution plate j non- rotatably attached thereto, the plate j having a pair of inlet and outlet ports k and m therein corresponding to each variable-volume chamber. Each chamber has a port q which thus periodically communicates with each of ports k and m as the plate k performs its circular motion. A particular construction using the above mechanism is also described Figs. 2 and 3 (not shown).
Patent GB-459466-A (GB)
Title: Improvements relating to jigging screens, jigging tables and jigging conveyors
IPC: B65G27/08
Filed: 1936-02-27
Abstract: 459,466. Jigging-conveyers. HUNTING- TON, HEBERLELN, & CO., Ltd., and HENSCHEL. L., Bush House, Aldwych, London. Feb. 27, 1936, No. 5899. [Class 78 (i)l [See also Group II] In a jigging screen, table, or conveyer wherein the frame b of the vibrated member q is supported by rigid arms c of which the lower ends are secured to the free ends of transverse spring members d, the centres of which are fixed to the underframe c, the connection between the upper ends of the arms c and the vibrated frame b is through a shackle member which permits pivotal movement in the longitudinal direction. The stirrup members o, Fig. 4, clamp a tubular metal member n which encloses a rubber sleeve m, the latter bearing on an inner metal sleeve l which is supported by a bush k<2> carried by a bolt k that extends between the cheeks of a U-shaped bracket secured to the underside of the vibrated frame b.
Patent GB-1118495-A (GB)
Title: Improvements in or relating to methods for determining the structural nature of media by sound reflections
Inventor: RICHTER HANS-ULRICH
IPC: G01N29/11
Filed: 1966-02-10
Abstract: 1,118,495. Testing materials acoustically. SCHWERMASCHINENBAU " KARL LIEBKNECHT" MAGDEBURG VEB. 10 Feb., 1966, No. 5918/66. Heading H4D. The grain size of crystalline solids is determined from the reflection of sound waves (which may be of ultrasonic frequency) by the solids as the frequency is swept through a range including wavelengths preferentially reflected by grains of different diameter. In the arrangement shown in Fig. 1, the swept frequency which is produced by a device 4 driven by a motor 13 is utilized to modulate a pulse transmitter 2 controlled by a pulse generator 1 and feeding an electro-acoustic transducer 6 in contact with the crystalline solid 12. Signals due to reflections from the grain structure and rear surface 14 of the latter together with the actual transmitted pulses are fed in an amplifier 5 to the brightness control electrode 8.3 of a cathode-ray tube 8 the beam of which is deflected in the vertical direction by a sawtooth wave from a generator 3 of the same recurrence period as generator 1 and in the horizontal direction by the output of a potentiometer 7 driven by motor 13. An assessment of the grain structure and size may then be made from the resulting display (Fig. 2, not shown).
Patent GB-932212-A (GB)
Title: Improvements in electron discharge display device
Inventor: LEA PETER GORDON
IPC: H01J31/12
Filed: 1960-02-22
Abstract: 932,212. Cathode-ray tubes. BUSH & RANK CINTEL Ltd. Feb. 22, 1961 [Feb. 22, 1960], No. 6137/60. Class 39 (1). An electronic display tube includes a " cold " emissive layer 5, e.g. of MgO 2 , on an electrode support 1, one or more mesh electrodes 6, 9 for producing a uniform emission from the layer 5, and two arrays of mutually perpendicular control electrodes 12, 18 which are selectively energized to allow electrons to pass in the vicinity of intersection points to excite the luminescent screen 24. The electrostatic field in the vicinity of an intersection point also serves to focus the electrons. The arrays 12, 18 are connected by resistors 13, 19 to common leads 14, 20 and are normally at cathode potentials. Selected electrodes, or adjacent pairs of electrodes, of the arrays are raised to a positive potential by selector means 16, 22 which may comprise semi-conductor switches or electron beam switches incorporated inside the envelope. Resistors 13, 19 also may be inside the envelope.
Patent GB-1348872-A (GB)
Title: Belt tensioning mechanism of spinning and twisting machines
IPC: D01H1/241
Filed: 1972-02-10
Abstract: 1348872 Spinning machine; belt tensioner HAMEL GmbH 10 Feb 1972 [2 March 1971] 6218/72 Heading DID [Also in Division F2] A spinning and-twisting machine has means for adjusting the tension of its spindle drive belt including a belt drive pulley mounted on a movable carriage, a carriage-moving device and a pressure measuring device located between the carriage and the moving device to indicate belt tension. As shown, Fig. 1, spindles 84 are rotated by belt 26 and belt pulley 24 is mounted, with its driving motor 20, on a carriage 18 slidable on shafts 14, 14'. Gear 30 is rotatably mounted on frame member 28. Threaded rod 32 is screwed into gear 30 and is prevented from turning by spring 40 on carriage 18. Rod end 36 abuts piston 44 slidable in a cylinder 46 containing fluid, e.g. oil, and connected to gauge 50. When belt 26 stretches, pressure in cylinder 46 drops and gauge needle 54 pivots towards electrical contact 52. The engagement of the needle and contact 52 starts motor 58 to slide carriage 18, via gears 60, 30, rod 32 and piston 44, to tension the belt. As the tension increases needle 54 pivots towards and engages contact 52' to stop motor 58. Motor 20 and the belt pulley, connected by V belts, may be mounted (Fig. 2, not shown) on separate slidable carriages connected by a threaded rod to adjust V-belt tension. Alternatively (Fig. 3, not shown) the gauge includes a contact to operate a visual and/or aural warning device to indicate belt slackening, and includes contacts to switch motor 20 on and off, and the rod 32 is rotated manually to adjust belt tension.
Patent GB-893195-A (GB)
Title: Improvements in or relating to pressure regulators
IPC: G05D16/16
Filed: 1960-02-23
Abstract: 893,195. Fluid-pressure servomotor-control systems. SOC. D'APPLICATIONS DES MACHINES MOTRICES. Feb. 23, 1960 [March 17, 1959], No. 6297/60. Class 135. An hydraulic circuit comprises a pump 1 connected through a non-return valve 7 to an accumulator 8, a by-pass valve 4 urged towards the closed position by a spring 5 and subject to opposed accumulator pressure through a control valve 23 which is controlled by means of a pilot valve 18 subjected to accumulator pressure, the valves being rated to verify b,c/a#1, wherein a, b, c are the constants of the equation in which P is the accumulator pressure. The by-pass valve 4 is loaded by the spring 5 within a cylinder 3 and operated by a piston 6. During normal operation of the apparatus connected in the working circuit 11, liquid is pumped by the pump 1 through the non-return valve 7. Upon an increase in pressure in the circuit 11 above a predetermined setting of the accumulator 8, the liquid acts upon the piston face of the valve 18 via pipes 12, 24 and moves the latter valve against the action of a spring 19 until a port leading to a pipe 25 is uncovered thereby allowing the pressurized liquid to act on a piston face of the valve 23; the latter valve is moved to the left and so permits the liquid to act upon the piston 6 via pipe 13, thereby causing the valve 4 to be opened and the excess pressure relieved to the tank 2.
Patent GB-525698-A (GB)
Title: Improvements in or relating to devices for use in pulling jacks
IPC: E21D15/60
Filed: 1939-02-27
Abstract: 525,698. Ratchet pulling-jacks. SILVESTER, H. Feb. 27, 1939, No. 6340. [Class 78 (iii)] A member such as a pit-prop is hauled by a ratchet appliance in which the pulling force is applied directly to the links of a chain by a lever having a hooked end and having its fulcrum resting in a curved portion of the casing or formed in the lower end of links which are fulcrummed in the curved portion of the casing. The chain a is guided in a casing and its pins are engaged by the hooked end of a lever c pivoted at f in depending links g pivoted to the casing at i. A detent d also engages the pins to retain the chain between successive strokes of the lever c. In modifications, the links g may be omitted and the pivot of the lever rests directly on the curved portion of the casing ; also a double detent may be used to engage the chain at intervals of a half-pitch.
Patent GB-214209-A (GB)
Title: Improvements in or relating to compasses for navigation purposes
IPC: G01C17/38
Filed: 1924-03-12
Abstract: 214,209. Vion, E. April 10, 1923, [Convention date]. Mariners' and aeronautical compasses.-Means for applying the corrections for semi-circular and quadrantal errors comprises for each corrector a number of rotatable compensating devices which are geared together in pairs so that the members of each pair are rotatable through equal but opposite angles around the axis of the card, the elements of each pair being symmetrically inclined to the longitudinal axis y, y<1> of the ship. The corrector for semi-circular errors, Figs. 3 and 6, comprises four elements E, E<1>, F, F<1> each consisting of two parallel magnets, the elements being mounted on discs c, c', d, d<1> which aro geared together in pairs for equal and opposite rotation. The discs c, c<1> are mounted on the upper surface of a fixed disc A attached to the base B of the compass box, and can be rotated by a button e; while the discs d, d<1> are mounted on the lower surface of the disc A and can be rotated by a button f. The discs may be provided with stops consisting of spring detents engaging their toothed peripheries. The corrector for quadrantal errors, Figs. 10 and 12, consists of two .elements each comprising a pair of soft iron bars arranged in the form of a cross. The bars U, U' are mounted around a pivot W in recesses in a disc U<2> clamped between discs U<3>, U<4>, of which the former has a toothed rim u. The bars V, V<1> are similarly mounted in a disc V<2>. The discs can be rotated by a button v2 carrying a pinion v<1> which engages the toothed rim v of the disc V<2> and also engages a pinion u<1> gearing with the rim u. The peripheries of the discs U<2>, V<2> may be marked with scales visible through an opening y.
Patent GB-124913-A (GB)
Title: Improvements in and relating to Candle Holders.
Inventor: BENSON FRED FRANKLIN
IPC: F21V35/00
Filed: 1918-04-15
Abstract: 124,913. Benson, F. F. April 15, 1918. Supporting.-A candle-holder, especially adapted for attaching to Christmas trees, comprises a perforated tubular envelope 10 having a reduced open end 11 of substantially the same inner diameter as the external diameter of the candle, a removable end 14 for the open end of the envelope, and a pivoted hook, such as the spring hook 18 at its closed, preferably hemispherical end for supporting it. The hook 18 may be pivotally secured to a swivelling eye 17.
Patent GB-1491740-A (GB)
Title: Apparatus for use in cutting cams
IPC: B23C1/18
Filed: 1975-02-14
Abstract: 1491740 Milling cam forms P MAENNER 14 Feb 1975 [22 May 1974] 6428/75 Heading B3K Cam machining apparatus comprising a base structure 13 upon which is displaceably mounted a cam blank support 12 which is displaceable in two coordinate directions in response to the relative movement between a cam template 53 and a cam follower. The cam template 53 is attached to a slide 51 displaceable in a first direction "X" on the base 13 the slide having pivotally attached thereto a ratio adjustment member in the form of a slotted arm 61 which carries an actuator 41 engaging the cam blank support 12 for displacement in the X direction, the displacement being adjusted by screw spindle means which adjusts the position of the actuator 41 relative to the slide 51. A further slide 52 for displacement in a second "Y" direction perpendicular to the slide 51 is supported on the base 3 and has a template follower 55 which engages the cam template 54 whereby displacement of the slide 51 in the X direction causes corresponding displacement of the slide 52 in the "Y" direction, the slide 52 being connected by an actuator 42 to the cam blank support 12 by way of a ratio adjustment member 62 similar to that of 61. Hence the controlled displacement of the slide 51 causes displacement of the cam blank support corresponding to the template shape. A milling cutter is provided in fixed relation to the cam support whereby the cam form of the template cam be machined in a predetermined ratio on a cam blank 30 clamped to the support 12. In an alternative embodiment, the cam blank support and template may be constructed to facilitate the machining of rotary cams and cam drums, the motions of the slides being controlled through rack-and-pinion means and bevel gears. The apparatus may be mounted on a milling machine having a cutter for cutting the contoured cam surface or alternatively, as described above, the apparatus can be provided with a cam cutter connected to the base structure.
Patent GB-783000-A (GB)
Title: Improvements in or relating to electrical circuits employing gaseous discharge tubes
IPC: H03K23/82
Filed: 1955-03-04
Abstract: 783,000. Type-printing telegraphy. STANDARD TELEPHONES & CABLES, Ltd. March 4, 1955 [March 11, 1954], No. 6450/55. Addition to 663,574. Drawings to Specification. Class 40 (3). In an electrical circuit for the storage of information of the pattern movement or shift register type described in the parent Specification an increase in operating speed is attained by so selecting the gaseous discharge tubes employed in the chain that the sum of the ionization times of the main and auxiliary gaps of any one tube is always greater than the time of ionization of the auxiliary gap of the next succeeding tube in the chain. This arrangement also permits the circuits interconnecting the successive tubes of the chain to be simplified. Specification 726,526 is referred to.
Patent GB-1042280-A (GB)
Title: Improvements in or relating to methods of generating a phase-modulated beam of laserradiation
IPC: G02F1/09
Filed: 1964-02-17
Abstract: 1,042,280. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 17, 1964 [Feb. 20, 1963], No. 6502/64. Heading H3B. Two gas lasers 21, 24 are arranged so that a radiation path from laser 24 traverses the active medium of laser 21, an output beam 30 of laser light being produced which is phase modulated by applying a varying magnetic field to at least one of the lasers. The two lasers are axially aligned with their respective adjacent reflector plates 23, 25 in intimate contact. Alternatively these plates may be replaced by a single block. The lasers are each biased by D.C. in respective coils 27, 28, and are pumped by current applied to discharge electrodes (not shown). In laser 24 the coil is constructed as a wall of a resonant cavity for microwave energy from a connecting waveguide, the cavity being so proportioned that the direction of high frequency magnetic field coincides with the laser axis. The radiation from laser 24 is frequency modulated by the microwave signal which varies the Zeeman line splitting caused by the bias. Due to anomalous dispersion in the active medium of laser 21, the frequency-modulated output of laser 24 causes fluctuation of the transmission time through laser 21 and consequently phase modulation of the output beam 30.
Patent GB-271193-A (GB)
Title: Improvements in rotary engines
IPC: F01C3/02
Filed: 1926-03-09
Abstract: 271,193. Batten, J. B. March 9, 1926. Movable - abutment type; valves, distributing and cut-off; valve gear and valve actuating mechanism; packing.- The movable abutment of an annular chamber type of rotary engine consists of two pivoted plates E with meeting faces, each plate having a gap or notch which registers on each stroke with that of the other plate and the annular chamber as they reciprocate across the chambers. The plates are each carried by a shaft G which is rocked by means of a universally jointed connecting rod attached to a crank pin R on a half-speed gear U. The admission and cut-off valve h is also operated from the half-speed gear which rocks a member z in which a slide a linked to the valve h is hand adjusted by a lever n to vary the cut-off or to put the valve out of action. The valve admits steam for the same direction of running on both its forward and return strokes. This valve gear is duplicated for reversing and so connected that as one valve is put, out of action the other comes into operation. Two interconnected exhaust valves p are also provided. Packing plates v are placed behind the abutment plates E and connected by springs x tending to draw them together. A packing 3 is provided in the gap of the packing plates v and kept tight by a screw adjusted fork 4 pressing on the plates v.
Patent GB-358850-A (GB)
IPC: C01B21/26
Filed: 1931-03-03
Abstract: <PICT:0358850/III/1> <PICT:0358850/III/2> In apparatus for ammonia oxidation a cooling surface is placed in direct contact with the metallic catalyst on the side with which the gases first come in contact.  A similar cooling surface on the other side of the catalyst is optional.  Figs. 1 and 2 show alternative forms in which the catalytic gauze 2 is placed between two plates 1 provided with apertures for the passage of the gas and with channels 5 in which a cooling liquid circulates.  In another form of the invention the catalyst is wound on a cooled gas-pervious drum through which the gas passes outwardly.
Patent GB-767893-A (GB)
Title: Arrangement for checking the speed of motor cars and the like machines
IPC: G01P11/00
Filed: 1955-03-07
Abstract: 767,893. Speedometers. JOAO, M. March 7, 1955 [March 9, 1954], No. 6617/55. Class 106 (3). The instantaneous speed of a motor vehicle is checked by a mechanism of the kind comprising a watch with a first auxiliary hand driven through a disengageable variable friction drive by the means driving the vehicle milemeter, a second auxiliary hand coaxial with the watch hands and the first auxiliary hand being provided, the second hand being positioned by the control knob adjusting the ratio of the variable friction drive and showing on a scale on the watch dial the speed at which it is desired to run. The first auxiliary hand is driven by a pulley 37, Fig. 5, shaft 36, gear 35, shaft 33, gear 32, gearing 9, 11, shaft 12, friction gearing 14, 16 and shaft 17, Fig. 3, and may be set in register with the minute hand by rotating knob 5. The disc 16 is normally urged into contact with the disc 14 by a spring 19 but may be disengaged by a lever 22 acting on the end 21 of the spindle 17 of the disc 16 and operated by a knob 7. The disc 14 is mounted on a sleeve 13 rotating with but slidable axially on the shaft 12 and the drive ratio is varied by moving the disc 14 over the face of the disc 16 by means of a link 25 engaging the sleeve 13 and secured to a worm 26 slidable longitudinally on a rod 27 by rotation of a gear 30 by means of the knob 6. As the knob 6 is rotated to move the gears 14, 16 to the drive-ratio required for the pre-set speed of travel, worm 26 also drives gear 28 controlling the position of the second auxiliary hand.
Patent GB-1210426-A (GB)
Title: Method for reclaiming composite metal scrap
Inventor: WINTER JOSEPH
IPC: C22B7/00
Filed: 1968-02-12
Abstract: 1,210,426. Recovering metals from scrap. OLIN CORP. Feb. 12, 1968 [Feb. 28, 1967], No. 6825/68. Heading C7D. Composites of dissimilar metals or alloys are treated by heating for long enough to weaken the interfacial bond and then mechanically separating the metals by breaking the weakened bond. The metallic parts are defined as dissimilar if interfacial bond weakening occurs by one or more of the following processes:- 1) near the interface a brittle region is caused by the formation of voids by vacancy diffusion during heating, in an inert or slightly reducing atmosphere if either of the metals are subject to oxidation at the temperature used. 2) formation of a brittle intermetallic region at the interface by diffusion during heating, in an inert or slightly reducing atmosphere for oxidizable metals as above. and 3) formation of rupture producing steam when one or both of the metals at the interface contains at least 0À01% oxygen by heating in a hydrogen atmosphere.
Patent GB-434497-A (GB)
Title: Manufacture of acridinium compounds
IPC: C07D219/08
Filed: 1934-03-03
Abstract: New acridinium compounds are obtained by condensing a 3 : 6-diamino-10-alkyl or benzyl-acridinium compound with an aliphatic, hydro-aromatic or aliphatic-aromatic ketone in presence of caustic alkali.  One of the amino groups reacts.  The products are useful for the manufacture of pharmaceutical preparations. According to examples: (1) 3 : 6-diamino-10-methylacridinium chloride is condensed with acetone, or acetophenone; (2) the corresponding sulphate is condensed with cyclohexanone; (3) the corresponding 10-benzyl compound is condensed with acetone. Further specified acridinium-compounds include the bromide, and specified ketones include methylethyl ketone, diethylketone, methyl cyclohexanone, propiophenone, butyrophenone, tolylmethyl-ketone, methyl cyclohexanone and methyl propylketone.  A sample has been furnished under Sect. 2 (5) of the product obtainable by condensing 2 : 7-dimethyl - 3 : 6 - diamino - 10 - methylacridinium chloride with acetone in alkaline solution.  The Specification as open to inspection under Sect. 91 comprises also examples of the condensation of a 3:6-diamino-10-methylacridinium lactate and acetylacetone, and the use of salts such as the carbonate, bicarbonate, nitrate, tartrate, oxalate, glycollate, formate acetate and propionate of the acridinium compounds This subject-matter does not appear in the Specification as accepted. p
Patent GB-873859-A (GB)
Title: Resonant oscillating device
IPC: B07B1/28
Filed: 1959-02-27
Abstract: 873,859. Sifting apparatus. BETEILI GUNGS-UND PATENTVERWALTUNGSGESELLSCHAFT. Feb. 27, 1959 [Feb. 28. 1958], No. 6974/59. Addition to 816.847. Class 117 [Also in Group XXX] An oscillatory frame 2 rests on rubber springs 1, and a sieve box 3, which oscillates in opposition to the frame, is supported within it by inclined springs 5, and the assembly is driven through a flexible coupling by a drive 11. Cross-members 7 are connected to brackets 6 above and below the frame and provide abutments for energy storage springs, each in the form of two rubber buffers 9, 10 connected to brackets 8 on the top and bottom edges of the side walls of the sieve box, so that their lines of action lie substantially in the planes of those side walls.