baber/WOPTO huggingface dataset:
Patent GB-116958-A (GB)
Title: Improvements in of appertaining to Grinding Mills, Disintegrators, Mixers or the like.
IPC: B02C17/18
Filed: 1917-08-01
Abstract: 116,958. British Dyes, Ltd., Turner, J., and Crosland, T. P. K. Aug. 1, 1917. Rotary batch-mixers.-A delivery device for grinding-mills, mixers, &c. comprising an inclined or conical drum a, consists of a bent pipe e which rotates with the drum and communicates at one end with an opening a<1> in the drum and is formed at the other end with a funnel e<1> which is co-axial with the drum and can rotate freelv in an opening f in a receiving chamber g. The opening a is normally closed by a shutter c secured to a slide c'. To discharge the material, the drum is arrested with the opening a<1> at the top and the slide c is moved to open the shutter. The drum is then started and, as the pipe is carried round by a drum, the material is discharged through the funnel c<1> into the chamber g. A packing-ring h and a baffle p are provided in connexion with the funnel.
Patent GB-552319-A (GB)
Title: Improvements in and relating to the production of ethylene and ethylene chlorhydrin
IPC: C07C29/66
Filed: 1941-09-01
Abstract: 552,319. Ethylene; ethylenechlorhydrine ; electrolysis. SHAWINIGAN CHEMICALS, Ltd. Sept. 1, 1941, No. 11121. Convention date, Sept. 10, 1940. [Class 2 (iii)] [Also in Group XXXVI] In a continuous process for the production of ethylene by the reaction of chromous chloride, acetylene and hydrogen chloride in aqueous solution, the chromic chloride which is simultaneously produced is reduced in the cathodic compartment of an electrolytic cell in order to recover the chromous chloride. A solution of hydrogen chloride is passed through the anodic compartment and the resultant chlorine used to produce alkalihypochlorite solution which yields ethylenechlorhydrin with the ethylene. In the Figure, acetylene reacts with hydrochloric acid and chromous chloride in a reactor 15 which receives aqueous chromous chloride from a vessel 11 after passing through pump 12 and hydrogen chloride absorber 13. The aqueous chromic chloride from the reactor 15 passes to the cathode of the cell 18. A second hydrogen chloride absorber 18 is used to maintain the concentration of a solution of hydrogen chloride which is circulated to the anode compartment of the cell 18. Alkali hypochlorite is formed in a vessel 26 with the chlorine from the anode and is passed to a reactor 25 which receives ethylene from the reactor 15. In a modified form of apparatus, a mixture of ethylene and acetylene produced in the reactor 15 is passed to a second circulating system comprising reactor, electrolytic cell and absorber as before, the chlorine ion present in the second circulating system being in excess of stoichiometric requirements. Specification 544,608, [Group XXXVI], is referred to.
Patent GB-1299573-A (GB)
Title: Synchronization installation for change speed transmissions
IPC: F16D23/02
Filed: 1971-04-23
Abstract: 1299573 Positive clutches DR ING H C F PORSCHE KG 23 April 1971 [25 April 1970] 11144/71 Heading F2C In a split ring type synchronizing clutch, the ring 11 is of substantially oval shape with its major dimension Y-Y perpendicular to the line X-X passing through the ring gap, the ends of the ring 16, 17 being non-aligned to define different diameters 6, 6<SP>1</SP> on opposite sides of the line X-X to compensate for the need to match different rotational speed differences between upshifts and downshifts. A mark 23, which may be the manufacturers' trademark, is applied to one end of the ring to ensure its correct positioning on assembly. A blocking band (21), Fig. 2 (not shown), is included and extends only inside that half of the ring having the larger diameter.
Patent GB-771514-A (GB)
Title: Improvements in or relating to couplings for compressed air and pressure fluid pipes
IPC: F16L37/40
Filed: 1955-04-19
Abstract: 771,514. Pipe couplings. OETIKER, H. April 19, 1955 [April 23, 1954], No. 11252/55. Class 99(1) Construction The socket of a pipe coupling has an element 4 which is formed with a rectangular opening leading to a central bore 6 against which an annular oil and petrol proof synthetic rubber sealing ring 13 is pressed by a sleeve 14 and a nut 15, the inner diameter of the ring being slightly smaller than the outer diameter of the nipple; between the nut 15 and the element 4 is a metal seal 18. The valve 19 which is loaded by a spring 22 so that a circular rib 20 on one end thereof abuts the seal 13, has four axially extending portions, 21, each shorter than the thickness of the ring 13. Around the front of the socket is an axially slidable casing 31 urged against a stop ring 12 by a spring 30. In the socket entrance is 'an annular guide 23 with opposed recesses 25 for receiving the transverse projections 38 of the nipple, and two lugs 24 each embodying two helical guide surfaces 26; an interlocking member 27 loaded by the spring 30 against the guide 23 also has two protusions 28 'and two opposed recesses. The nipple may incorporate one projection only in which case the socket would have one or two guide surfaces. Operation. (a) Coupling. The nipple is pressed into the socket whereupon (1) the projections 38 enter the recesses 25 and the nipple is turned in either direction upon contacting the surfaces 26, (2) the front of the nipple contacts the portions 21 and displaces the valve 19, (3) the projections 38 abut the protusions 28 so forcing the member 27 against its spring loading away from the guide 23, and (4) the projections pass through the recesses in the member 27 and the latter is spring returned against the guide 23 so that the recesses are occupied by the top of the lugs 24 thus locking the nipple and socket together. The valve is now open and the nipple can be freely rotated without effecting the valve position. (b) Uncoupling. The nipple is turned until the projections 38 coincide with the top of the lugs 24 and the recesses in member 27, which position may be indicated by marks on the socket and nipple or the nipple only, whereupon the casing is retracted against the action of its spring 30 and passes over the projections 38; the latter abut the top of the lugs 24 and after giving the nipple a 90 degrees rotation, whereby the projections travel down the guide surfaces 26, it can be withdrawn from the socket by which time the valve is closed, by the spring 22.
Patent GB-706788-A (GB)
Title: Improvements in automatic change speed gears
IPC: F16H61/02
Filed: 1951-05-15
Abstract: 706,788. Variable-speed gearing. SIBA SOC. ITALIANA BREVETTI AUTOMOBILISTICI AR.L., and KREIS, F. May 15, 1951 [May 13, 1950], No. 11326/51. Class 80 (2) An automatic variable-speed gear employing centrifugal clutches and overrunning freewheels and providing three forward speeds comprises a driving shaft 4, a coaxial driven gear 18 and three secondary shafts 1, 8, 9 on each of which is mounted a centrifugal clutch so that the three clutches 2, 10, 12 are approximately in the same plane. Wheels 5, 6, 7 are secured to the shaft 4, which is mounted on a two-part casing 14. First gear is obtained when clutch 2, which is driven by wheels 5, 3, reaches a predetermined speed and is engaged to connect wheel 3 with shaft 1, when a drive is transmitted through freewheel 20, wheels 15, 16 and freewheel 21 to wheel 18 and its coupling teeth 19. As the speed increases, clutch 10, whose internal part is driven from wheel 16 through wheel 17 and shaft 8, is engaged to give a second gear drive from wheel 6 through gear ring 11, clutch 10,wheels 17, 16 and freewheel 21 to wheel 18, while freewheel 20 overruns. For third gear; clutch 12, whose internal part is driven from wheel 18 through a wheel (not shown) on shaft 9, is engaged to connect shaft 9 with wheel 13 and transmit drive from wheel 7 through wheel 13 and the wheel not shown to wheel 18, while freewheels 20 and 21 overrun. In a modification for a railway shunting engine, a running wheel is rotatably supported around the casing 14 and has internal teeth which are engaged by an intermediate wheel mounted in the casing and driven by the wheel 18.
Patent GB-743500-A (GB)
Title: Improvements in or relating to repeaters for duplex communication
Inventor: ANDERSON ERIC WALTER
IPC: H04B3/38
Filed: 1953-04-24
Abstract: 743,500. Two-way transmission. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 19, 1954 [April 24, 1953], No. 11452/53. Class 40 (4). [Also in Group XL (c)] In a duplex repeater, signals in both directions, in different frequency ranges are amplified in a common amplifier and are transposed in frequency by a common frequency-changer. In one embodiment, the receiving channel R1 contains a filter F13 passing three sub-channel frequencies f1, f2, f3 and the receiving channel R2 contains a filter F46 passing frequencies f4, f5, f6. Both filters feed a common amplifier FC16 whose output is heterodyned by an oscillator O shifting the range f1 ... f6 to a new range f1<1> ... f6<1> amplified by a common amplifier FC<1>16. The three new frequencies f1<1>, f2<1>, f3<1> are passed by filter F'13 to the transmitting channel T1 and the other three by filter F<1>46 to channel T2.
Patent GB-1364053-A (GB)
Title: Container made of foldable sheet material
IPC: B65D77/04
Filed: 1972-07-25
Abstract: 1364053 Containers DRG PACKAGING Ltd 25 July 1972 [26 April 1971] 11478/71 Heading B8P A fibreboard container comprises an inner water-resistant part A erected from a blank and having gusset corners 8, and an outer part B having walls 10 to support the inner part A in the erected condition. The outer part B may comprise a box having end flaps 12: the panels 4 of the inner part may have top flaps 16 with apertures 18 into which the ends 22 of flaps 20 on the panels 6 engage to prevent the inner part A from collapsing inwardly. A loose tap 14 is placed over the inner part A.
Patent GB-255964-A (GB)
Title: Improvements in carrying out exothermic gaseous catalytic reactions
IPC: B01J8/04
Filed: 1925-05-04
Abstract: 255,964. Synthetic Ammonia & Nitrates, Ltd., and Slade, R. E. May 4, 1925. Catalytic or contact apparatus; ammonia, catalytic production of from nitrogen and hydrogen.- The catalytic synthesis of ammonia and other exothermic gaseous catalytic reactions in which for the purpose of rendering the reaction selt-supporting, it is necessary to effect exchange of heat between the reagents and the reaction products are carried out by passing the reagents through a body of catalyst in which they are heated, brought to reaction, and finally 'cooled, the direction of flow of the gases being reversed when the cooling portion of the catalyst has become sufficiently hot. Suitable apparatus comprises a pressure-resisting envelope A lined as shown with heat-insulating material F and divided by perforated partitions J of heatinsulating material into compartments in which is placed the catalyst K. A heating coil L having electrodes M, N is provided in the middle of the apparatus and a gas port D, E at each end. In use, the cold reagent gases are led in at D, the central catalyst compartment being heated until the reaction is in progress, and the reaction products, cooled by contact with the catalyst in the lower part of the apparatus, are withdrawn at E; further cooling means, such as water-cooled tubes placed within the apparatus near the end covers, may be provided, and the end covers themselves may be externally water-cooled. When the cooling portion of the catalyst has become sufficiently hot, by which time the hottest zone of the catalyst will be nearer to E than to D, the direction of flow of the gases is reversed until the hottest zone has been moved as near as is convenient to D. The partitions J may be dispensed with if the catalyst is a. poor conductor of heat, but in any event means are provided for indicating the temperature in the different parts of the apparatus. Specification 255,963 is referred to.
Patent GB-312051-A (GB)
Title: Means for indicating the position of a float used in liquid level and other indicating apparatus
IPC: G01F23/42
Filed: 1929-04-15
Abstract: 312,051. Loffler, S. May 19, 1928, [Convention date]. Indicators actuated by floats.-The float employed for indicating water level, or steam, flow, in high pressure steam plant is partly balanced by a counterweight moving in a separate casing which is kept cool, and which is in part transparent so that the position of the counterpoise may be seen. The float 1, Fig. 1, moving in a gauge tube 2 of a boiler is connected by a cord 11 to a counterweight 5 moving in a transparent part 7 of a separate casing 6. The tube 9 is connected to the steam space of the tube 2, and becomes filled with condensate. Alternatively, the tube 9 may project upwards through the casing 2 into the steam space. In a steam flow meter, Fig. 3, a conical float 1 moves in a conical casing 2 and is connected through cords and a pivoted lever 14 to a counterweight 5 in a transparent casing 6. A cooling arrangement 15 is provided. In another form, Fig. 4, the counterweight 5 has a thin extension 19 which is viewed, and is provided with a closure member 16 which co-operates with a seating 17 in the event of breakage of the glass 7. A spring 18 prevents seating of the closure member when the float is at its highest level in normal working.
Patent GB-294696-A (GB)
Title: Improvements in or relating to packages for disc records for gramophones and like sound-reproducing machines
IPC: B65D85/57
Filed: 1927-04-30
Abstract: 294,696. Billing, N. Pemberton-. April 30, 1927. Packing gramophone records.- Gramophone records 3 are packed by being placed between two sheets 1, 2 of paper, the edges 6 of which are secured together by adhesive, stitching, &c. Apertures 4 in the sheets register with the central aperture of the record and a cord 8 may be passed through for securing a label. 10 and for sealing at 9. During the stitching operation, the sheets and records may be mounted with their central apertures engaged by a spindle upon which they are rotated. A hollow rivet may be passed through the central aperture and turned down upon the outer surfaces of the paper. In a modification, the sheets of paper are square, or a label replaces the seal 9.
Patent GB-673844-A (GB)
Title: Improvements relating to stencilling machines
IPC: B41F15/42
Filed: 1949-05-02
Abstract: 673,844. Stencilling-apparatus. McCORMICK, W. P. May 2, 1949, No. 11603/49. Class 100 (ii). In a stencilling machine wherein a squeegee is reciprocated mechanically over a gauze or silk screen and during the return stroke is pivoted clear of the screen, and the screen pivoted upwards clear of the printing table to allow removal of the stencilled sheet, an inking device comprises an ink feed roller rotatable against a scraper blade so that ink is transferred thereto, the blade being movable down on to the screen during the upward pivotal movement of the latter to transfer the ink from the blade to the screen. The stencilling machine is of the general construction described in Specification 673,815, an electric motor A driving a shaft 7 through gears 3, 4, 6, 5, whereby the squeegee carriers 9 are reciprocated along guide bars 11 by crank arms 8 and rods 10. The bars 11 carry the screen frame 12 and are pivotally mounted on the shaft 7. The screen frame is pivoted upwards during the return stroke of the squeegee by a cam 15 acting on a lever 16 rigidly connected to the guide bars. Mounted in brackets 18 is an ink feed roller 17 having flanges 22 and rotated continuously by chain and sprocket drive from the gear 6. The roller 17, flanges 22, brackets 18 and a sloping duct blade 19 constitute a container for ink, which is transferred to the surface 24 of a steel blade 23 bevelled on its rear face and in contact with the roller, which makes two or three clockwise revolutions for each revolution of the shaft 7. The blade 23 is mounted between the ends of the arms 25 of two bell-cranks 25, 26 pivotally mounted in the brackets 18 at 26A. As the screen frame 12 is raised, the blade 23 is lowered, by a cam 27 acting on the arms 26 of the bellcranks, into contact at an acute angle with the screen 13 before the latter has reached its uppermost position, and when the squeegee is halfway on its return stroke, and transfers the ink to the screen. The blade is raised clear of the squeegee as the latter continues its return stroke.
Patent GB-496121-A (GB)
Title: Improvements in electric circuits for use in connection with discharge lamps
IPC: H05B41/234
Filed: 1937-04-23
Abstract: 496,121. Supply systems for discharge lamps. SCOPHONY, Ltd., and JEFFREE, J. H. April 23, 1937, No. 11650. [Class 38 (iv)] [Also in Group XL] An arrangement for the periodic flashing of a discharge lamp comprises an inductance 1 is series with a grid controlled thermionic valve 2 connected across a source of supply, the lamp 3 being connected across the inductance so that on the occurrence of periodic negative impulses in the grid circuit of the valve 2 the substantial drop in anode current causes the lamp to be flashed periodically by the high voltage impulses generated across the inductance 1. Values of the circuit constants are given in examples in the Specification. The arrangement may be used in television systems. Specification 474,970, [Group XL], is referred to.
Patent GB-560154-A (GB)
Title: Improvements in and relating to nuts for securing articles or structural parts to tubular and like members
IPC: F16B2/06
Filed: 1942-08-19
Abstract: 560,154. Bolting; nuts. BISHOP, W. H., and CLEMENTS, W. E. Aug. 19, 1942, No. 11679. [Class 89 (i)] Nuts for attaching articles or structural parts to tubular members used in aircraft, or for supporting light machinery-instruments &c., in work shops, in which attachment has to be made to a cylindrical or part cylindrical surface, have lateral extensions to rest on the cylindrical surface in suchwise that on tightening slots in the nut effect a closure on to the bolt and render the device self locking. The nut' has a sleeve portion or shank 10 extending through the hole 14 into the cylindrical member 13 and has a head portion with lateral extensions 15. The under-surface of the extensions has a radius of curvature less than that of the part 13 so that on tightening pressure develops at the extremities of the extensions and causes a transverse slot 16 to close and the nut to grip the bolt.
Patent GB-453268-A (GB)
Title: Improvements in or relating to portable electric lamps
IPC: F21V25/02
Filed: 1936-04-24
Abstract: 453,268. Two-part couplings. MAURICE, W., Park Grange, and WOLF SAFETY LAMP (HIRING) CO., Ltd., Saxon Road, both in Sheffield. April 24, 1936, No. 11708. [Class 38 (i)] [See also Group XI] In a portable electric lamp, spring finger contacts g extend through slots h in a reflector i and carry a tubular bulb e, the fingers g being insulated against accidental contact with the reflector at the sides and back as at m, but only partially at the front, as at m<1>, so that the fingers will engage the reflector when a bulb is not in position. By this means a short circuit fuses a cartridge on the battery and, should the front glass be broken, the risk of igniting fire-damp is eliminated. Also, external sparking is prevented as the fingers cannot touch metal on any of the other three sides of either slot. The insulation m, m<1> may be secured to the fingers by moulding or riveting. The conical ends of the contact caps f of the bulb engage in any one of a number of pairs of depressions j formed in the fingers, the caps preferably being fitted with small pins l adapted to enter small apertures k in the depressions.
Patent GB-897942-A (GB)
Title: Circuit interrupters having arc chutes
IPC: H01H73/18
Filed: 1960-04-04
Abstract: The arc-chute of a circuit interrupter (see Group XXXVII) may be moulded from a composition comprising 5% to 75% by weight organic binder and from 95% to 25% by weight of filler, alumina or hydrated alumina being an ingredient of the filler and constituting from 5% to 90% of the total composition.  The filler may include glass fibre or asbestos from 20% to 5% by weight of the composition.  The binder may be a polyester, phenolic, urea melamine or silicone resin.  The composition may be cold or hot moulded.  Examples are given.
Patent GB-117747-A (GB)
IPC: G01C21/14
Abstract: 117,747. Rye, A. L. Oct. 16, 1917. Plane-trigonometry calculators.-In height and range finders of the kind in which two indicator arms D' E<1> pivoted on rotatable mountings disposed above the positions of the observation stations on a map are set in accordance with data ascertained at the observing stations, a movable vertical knife edge K being also provided, the arms D', E<1>, are arranged with their planes vertical or substantially so, and are provided with graduated knife edges on their lower and upper edges respectively. Difference in height between the stations is compensated for by the insertion of a packing disk F, and the knife edge K is adjustably mounted on a support K' so that its zero may be brought to the level of the pivot of one of the arms. The support K' carries a point which can be depressed to mark the map at the point below the vertical knife edge K, the marked points serving to determine the horizontal velocity of the target. The mountings for the arms D', E' may be sunk in the map, so that the pivot points are flush with its surface.
Patent GB-999012-A (GB)
Title: Hopper of fastening means in shoe machines
IPC: A43D71/00
Filed: 1963-03-26
Abstract: 999,012. Nailing. ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NORODNI PODNIK. March 26, 1963 [May 19, 1962], No. 11806/63. Heading B4C. A hopper for delivering fasteners, such as nails, in a shoe-making machine, comprises a rotary drum 3 mounted on a shaft 7 and adapted to be oscillated by means of splines on the shaft engaging with a toothed rack 15 connected to a tie-rod 18 which is reciprocably mounted in a sleeve 23 and coupled to the latter by means of wedges 20, 21 co-operable with spring-loaded pawls 27, 27<SP>1</SP> mounted in the sleeve such that the oscillating movement of the rotary part is dampened. The lower end of the sleeve 23 is connected to a part of the machine, such as a cam, which thereby gives the sleeve a reciprocating motion, this motion being converted into oscillating movement of the hopper drum 3 via the splined shaft 7 and rack 15. The upper end of the sleeve is formed with two tubular extensions 31, 32 in which the pawls 27, 27<SP>1</SP> are slidably mounted and retained by pin-and-slot connections 28, 33. The pawls are urged into contact with the wedges 20, 21 by springs 30. In operation, any rotary movement of the drum, due to inertia, at the end of each stroke, is taken up by the pawls 27, 27<SP>1</SP> having to ride up the inclined surface of the wedges against the action of the springs.
Patent GB-1455034-A (GB)
Title: Flame monitoring apparatus
IPC: F23N5/08
Filed: 1974-03-18
Abstract: 1455034 Flame monitoring ELECTRICITE DE FRANCE (SERVICE NATIONAL) 18 March 1974 [20 March 1973 8 March 1974] 11869/74 Heading G1A In a burner monitoring system radiation intensity variations having a frequency greater than 50 Hertz are monitored to provide an indication of whether or not the flame is alight. Radiation from a flame on a burner 34, Fig. 7, is directed via a sighting tube 36 on to a photovoltaic cell in a casing 2 containing a heat filter, Fig. 3 (not shown). The cell's 1, Fig. 5, output is fed via a capacitive filter 13 (eliminating D.C. signals) to an operational amplifier 14 connected to a high pass "elliptical" filter (removing frequencies below 50 Hz). The filters 15 output is passed via a further amplifier 16, an integrator 17 and a trigger assembly 18 to a relay 19 which can operate a sound signal 20, or a light 21, if the flame goes out, and provide a signal for an automatic checking and controlling device of the burner. The description discloses a set up for a number of these systems associated with a corresponding number of burners, Fig. 7, Fig 6 (not shown), the sighting tube of each system being arranged so that their lines of sight only pass through its associated flame and no other flame.