baber/WOPTO huggingface dataset:
Patent GB-313889-A (GB)
Title: Improvements in the manufacture of fuels
IPC: C10L1/32
Filed: 1929-06-18
Abstract: 313,889. General Carbonalpha Co. June 18, 1928, [Convention date]. Liquid fuel.-To a liquid fuel is added carbon obtained by the autocatalytical decomposition of carbon monoxide or of gases containing carbon monoxide. The object of the invention is to assist the combustion of the fuel and to control the speed and temperature of that combustion by using varying proportions of the carbon. For example, the proportions may be varied with the piston speed of the engine. The proportion of the carbon added to the fuel may vary from 10 per cent to 90 per cent by weight. The Specification as open to inspection under Sect. 91 (3) (a) describes a modification, combining to any fuel carbon or carbonaceous compounds having a lower ignition temperature than that of the fuel. This subject-matter does not appear in the Specification as accepted.
Patent GB-366411-A (GB)
Title: Improvements in and relating to electric resistance elements
IPC: H01C3/12
Filed: 1931-06-29
Abstract: 366,411. Grid resistances. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 29, 1931, No. 18780. Convention date, July 30, 1930. [Class 37.] A resistance grid a is provided at its lower edge with downwardly directed openended slots b which engage insulated supporting bolts d. An element a may be disengaged from the supporting bolts d by lifting through a distance f and removing transversely from the casing g, which need only have sufficient clearance at the top to permit the necessary vertical lift. At each side of the outer supporting slots b is a further convolution h having an upwardly directed slot i into which connecting bolts or screws may be introduced from above. The convolutions h are sufficiently resilient to permit them to be pressed directly together in order to connect adjacent elements a conductively. Plates k may be provided for reinforcing the points of connection of the elements.
Patent GB-1196731-A (GB)
Title: Improvements in the Manufacture of Nitroguanidine.
Inventor: TAYLOR GEORGE WILLIAM CHARLES
IPC: C06B25/34
Filed: 1950-07-27
Abstract: 1,196,731. Nitroguanidine. MINISTER OF TECHNOLOGY. 17 July, 1951 [27 July, 1950], No. 18836/50. Heading C2C. High bulk-density nitroguanidine is obtained by coating a heat weak aqueous solution of nitroguanidine containing the nitroguanyl hydrazone of benzaldehyde and a small amount of a cationic surface-active agent such as cetyl trimethyl ammonium bromide or cetyl pyridinium bromide. After separating the solid, more nitroguanidine may be added to the liquid and the process repeated.
Patent GB-356341-A (GB)
Title: Improvements in or relating to walking sticks
IPC: A61H3/02
Filed: 1930-06-20
Abstract: 356,341. Walking,sticks. CROMBIE, C. E. F., 156, Sloane Street, London. June 20, 1930, No. 18389. [Class 134.] In walking sticl:s comprising a handle b and two rigid members a, c, pivotally connected at d adjacent the handle, so that objects can be picked up from the ground &c. without stooping or strain, the members a, c are formed with a space between them to permit insertion of the user's fingers. The members a, c may be splayed or bowed outwardly adjacent the pivot d, and, when used as a stick, they are clamped together as by a hook- and-pin device e, or by a ring. The handle b may be of crook, knob, or straight form. Ferrules g are provided at the ends of the members a, c, which may also carry serrated rubber pads f.
Patent GB-298931-A (GB)
Title: Improvements in the manufacture of benzanthrone derivatives
IPC: C09B3/06
Filed: 1927-07-16
Abstract: 298,931. British Dyestuffs Corporation, Ltd., Baddiley, J., Shepherdson, A., and Thornley, S. July 16, 1927. Addition to 276,766. Benzanthrone derivatives.-Simple homologues and substitution products of benzanthrone are sulphonated, preferably with oleum, in presence or absence of catalysts such as mercury, and the sulphonic acids so obtained alkali dused to yield vat dyes. In an example 2-methylbenzanthrone is sulphonated with oleum, and the product alkali fused to give a reddish-blue vat dye. Chlorobenzanthrones are also mentioned as starting materials.
Patent GB-596188-A (GB)
Title: Improvements relating to speed measuring instruments
IPC: G01P3/495
Filed: 1945-07-24
Abstract: 596,188. Speedometers. EVERSHED & VIGNOLES, Ltd., and NEEDHAM, J. C. July 24, 1945, No. 18955. [Class 106 (iii)] In a tachometer of the eddy-current drag type comprising a permanent magnet cooperating with a conductive eddy-current member, the conductor is the driving member and the flux of the permanent magnet has only to pass through the air gap between this member and the permanent magnet. An input spindle 1, driven by the machine whose speed of rotation is to be measured, carries a copper drum 4, embodying a set of annular laminations 5 of low-hysteresis magnetic material. Within the drum 4 is located a disc magnet 7, magnetized along a diameter, and mounted for rotation, under the restraint of a spiral spring 12, on a spindle 8. The angular displacement of the magnet 7 is indicated by a pointer 19 against a scale 20.
Patent GB-1532342-A (GB)
Title: Singlephase stepping motors
IPC: H02K37/14
Filed: 1977-05-05
Abstract: 1532342 Stepping motors QUARZ-ZEIT AG 5 May 1977 [13 May 1976] 18956/77 Heading H2A A stepping motor, suitable for a clock, comprises a bipolar permanent magnet 5 on a shaft 3 in a plastics casing on which is wound a coil 17 providing a transverse field, and the moment of inertia of the permanent magnet is no greater than that of the shaft. The casing is formed from two interlocking parts 7, 8 and is provided with pair of holes 18 (Fig. 2) disposed on opposite sides of the rotor, the legs 20 of a U-shaped member being fitted in the holes to provide auxiliary stator poles. The magnet is a samalium-cobalt-alloy magnet, a drive pinion 4 is provided, and both shaft bearings may be provided in the upper section 8.
Patent GB-1472926-A (GB)
Title: Refractive device for use in the formation of colour television picture tube screens
IPC: G02B1/04
Filed: 1974-05-01
Abstract: 1472926 Manufacturing colour television tubes RCA CORPORATION 1 May 1974 [2 May 1973] 19034/74 Heading H1D A refractive device (used for correction in the exposure of photo-resist in the course of producing a colour television luminescent screen) includes a layer 22 of a silicone resin which will not decline in transmittance when used with ultra violet light in the 290-400 nm. wavelength range. The silicone resin can be supported on a glass plate 20. The effective surface of the layer 22 can be discontinuous as shown or continuously curved, Fig. 1 (not shown). In the former case the discontinuities can be masked, the masks being on a glass plate spaced from the device, Fig. 3, on the discontinuity surface, Fig. 4, embedded in the resin, Fig. 5, or at the interface of the resin and glass, Fig. 6 (none of these figures shown here).
Patent GB-854605-A (GB)
Title: Polymerization of a hydrocarbon gas containing propylene
Inventor: GRIESINGER WILLIAM KENNETH
IPC: C07C2/20
Filed: 1958-06-13
Abstract: A process for the polymerization of a hydrocarbon gas containing propylene comprises contacting the gas in a reaction chamber at 125 DEG -315 DEG F. and a pressure of 150 - 770 p.s.i. with 14 - 120% of an adduct catalyst comprising BF3, water and normally liquid hydrocarbons per unit weight of the propylene content of the total feed per hour, the adduct having been prepared by contacting the same or a similar hydrocarbon gas with 0,3 to 4,0 mol % of BF3 based on the propylene content of said gas and 0,01 to 0,50 % of water based on the total quantity of hydrocarbons containing three carbon atoms per molecule present in the gas at 125 DEG -315 DEG F. and a pressure of 150 to 770 p.s.i., said adduct catalyst being regenerated and/or maintained in a highly active state for an indefinite period of time by continuously or intermittently adding small amounts of BF3 and water to the reaction chamber.  The polymerization may be made continuous and the hydrocarbon gas may contain also small amounts of ethylene, butene and lower paraffins and the ethylene and butene may be partially polymerized by this process. The polymer products may be converted to sulphonate-type detergents by alkylation of an aromatic hydrocarbon in the presence of a Friedel-Crafts catalyst followed by sulphonation and salt formation.
Patent GB-685453-A (GB)
Title: Improvements in or relating to gill boxes
IPC: D01H5/06
Filed: 1949-07-20
Abstract: 685,453. Gill boxes. WARNER & SWASEY CO. July 20, 1949 [July 30, 1948].. No. 19091/49. Class 120 (i). The exit end of each saddle of a gill box has a bevelled surface 36 at such an angle that a faller bar corner held against it by the associated guide finger 26 moves in a direction that is the resultant of the horizontal motion imparted to the bar by the lead screw 12 and the vertical motion imparted thereto by the associated cam 15 shifting the bar from the lead screw to the return screw 11. The guide finger 26 which is spring influenced has a curved portion 40 which steadies the faller bar as it enters the return screws.
Patent GB-572212-A (GB)
Title: Torque wrench
IPC: B25B23/142
Filed: 1943-11-16
Abstract: 572,212. Wrenches. LARSON, K. R. Nov. 16, 1943, No. 19136. [Class 61 (iii)] [Also in Group XIX] A wrench, comprising a nutsocket driving head 32 rigidly mounted at one end of a handle so as to turn therewith and a dial 68 and pointer at the other end of the handle member to register the torque applied to the nut by indicating the torsion of the shaft 34 of the head 32, has a hollow section handle member 11 open all down one side which is adapted to be closed by a cover-plate 17 secured in position by screws, the driving head 32 being rigidly secured by means of an enlargement 41 to the top end of the coverplate with the head 32 projecting through a hole in the member 11 and the dial 68 &c. secured to the bottom end of the cover-plate. The torsion indicating rod 46 projects at right angles from the shaft 34 along the length of the handle member and carries an adjustable extension 51 with a bent-over end 56 engaging a slot 57 in a lever 58 on a shaft carrying a gear sector 60 meshing with a pinion 64 on the indicator pointer shaft.
Patent GB-516452-A (GB)
Title: Improvements in or relating to electric ratio-meters
IPC: G01R27/12
Filed: 1938-06-28
Abstract: 516,452. Indicating- apparatus. BRITISH SANGAMO CO., Ltd., TAGG, G. F., and GILLIVER, G. June 28, 1938, No. 19159. [Class 106 (iv)] [Also in Group XXXVI] In an electric ratiometer with an armature on a rotary spindle, a pointer indicating the angular movement is caused to travel over a straight line scale 65, the pointer being attached to a spindle 62 which is carried eccentrically by the armature spindle 60, and has a guided extension 66.
Patent GB-195902-A (GB)
Title: Improvements in double-acting two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1922-07-13
Abstract: 195,902. North British Diesel Engine Works (1922), Ltd., and Maclagan, J. C. M. July 13, 1922. Two-stroke engines; cylinders, pipes for.-In double-acting engines of the type described in Specification 173,145, and in which the cylinder has a reciprocating movement, the exhaust manifold 10 for the upper end of the cylinder is formed with a depending pipe 11 which makes connection, through a stuffing-box 12 permitting expansion, with the lower exhaust manifold 13, which also has a depending pipe 14 arranged to slide between packing-rings on a fixed manifold 15. A similar arrangement may be fitted to the scavenging ports.
Patent GB-221486-A (GB)
Title: Improvements in metal sawing machines
IPC: B23D53/00
Filed: 1924-08-14
Abstract: 221,486. Thompson & Son Co., H. G., (Assignees of Thompson, A. G., and Smith, W. S.). Sept. 7, 1923, [Convention date]. Band-saw machines.-A metal-cutting bandsaw has chisel-edged teeth 171 tapering inwardly in cross section and separated by gullets 173 wide enough to accommodate the cuttings. The driving-pulley 28 is rotated by bevel gearing from a belt shaft 35 about which the saw-carrying arm 16 can rock, the arm being pulled down against a spring 148 to effect the feed of the saw by a rack 61 attached to the arm 16 by a link 58. The provision of the spring 148 and the position of the carrier pivot above the work are designed to prevent the saw teeth from digging into the work. The pinion 62 actuating the rack 61 is rotated through a clutch 66, worm gearing 81, change-speed gear 113 and sprocket gearing 98, 94 from the shaft 35. The change-speed gear comprises two sets of gear wheels constantly in engagement, with a cylindrical rack 132 and spring key 130 for locking any one of the wheels 113 to the worm shaft 123. The handle 139 for adjusting the rack pinion 133 also controls a series of stops (not shown) for limiting the extent of opening of the movable work-holding jaw 8, so as to limit the size of the stock in accordance with the speed of running. The jaws 6, 8 are arranged on both sides of the run of the saw, which is further guided by pairs of rollers 166 transversely adjustable on depending brackets 158, 159, the latter bracket being also adjustable along the arm 16. The bearing of the idle pulley 46 is longitudinally adjustable by means of a hand-operated bar 43 and screw 42, and has a further angular adjustment effected by screws 53, 54. To facili. tate this adjustment the inner faces of the outer ball races 49, 52 are spherical. The clutch 66 is actuated by a rod 75 and handle 79, as well as by a trip lever 85 actuated by a stop 88 on the link 58. A spring catch 91 holds the clutch lever in either position. With the adjustments described the Specification states that a correlation is readily effected between the speed of the saw, the rate of feed, the resistance of the stock, the maximum width cut and the capacity of the gullets.
Patent GB-1183583-A (GB)
Title: Improvements in or relating to Devices for use in Adjusting Flexible Printing Plates on Forme Cylinders
Inventor: JANECEK JAROSLAV
IPC: B41F27/12
Filed: 1967-04-27
Abstract: 1,183,583. Mounting flexible printing plates. ADAMOVSKE STROJIRNY, NARODNI PODNIK. 27 April, 1967, No. 19360/67. Heading B6C. A flexible printing plate 19, Fig. 4, is adjustably mounted on a forme cylinder 20 by means of clamping bars 12 which are actuable by lock levers 13 and are mounted in a longitudinal gap within the cylinder. One set of bars 12 is mounted in association with a bar 8 fixed within the gap and a bar 6 movable therealong whilst the other set of bars 12 is mounted in conjunction with a bar 7 movable longitudinally of the gap and a plate-tensioning bar 10 movable transversely of the gap. The underside of the latter bar 10 carries a number of racks 24 each of which is engageable by the teeth of a gear 17 mounted for rotation on a spindle 16 extending longitudinally of the cylinder gap and rotatable on the cylinder end wall by a worm and gearing arrangement. The movable bars 6, 7 are connected to their respective clamping bars 12 through inclined slots and pin arrangements 9, 21, 22 and 11, 21, 22 such that movement of the bars 6, 7 axially of the cylinder through rotation of a worm actuable spindle 3 causes the bars 6, 7 and thus the clamped ends of the plate 19, to skew relative to the cylinder axis. An indicator is mounted at the end of the spindle 3 to show the extent of the skewing movement. In a further embodiment, Fig. 7, actuation of a worm and gearing arrangement 101, 102 causes a lever 104 mounted across the cylinder gap to skew movable bars mounting the plate clamping bars. A spring-loaded bar 109 is movable transversely of the gap by eccentrics 111 to adjust the tensioning of the mounted plate.
Patent GB-356352-A (GB)
Title: Improvements in thermionic valves
IPC: H01J21/02
Filed: 1930-06-26
Abstract: 356,352. Thermionic valves. LISSEN, Ltd. and CLARK, J. E., Lissenium Works, Worple Road, Isleworth. Middlesex. June 26, 1930, No. 19509. [Class 39 (i).] A valve has four grids 4 .. 7 between the cathode 11 and a sheet-metal anode 8, the bars of two or more grids lying in the same surface. The grids are mounted on vertical wires so that the bars of the inner grids 4, 5 lie in one plane, and the bars, the outer grids 6, 7, in another plane. The grid 4 is connected as control grid, the grid 5, 7 are connected together to a source of positive potential and the grid 8 is connected to the cathode or to a source of positive or negative potential; or one of the outer grids may be the control grid. A mica strip 19 spaces the supports.
Patent GB-408484-A (GB)
Title: Improvements relating to rotary steel plate printing machines
IPC: B41F13/00
Filed: 1933-07-10
Abstract: 408,484. Printing-machines. BARKER, R. W., 56, Ludgate Hill, London.-(American Bank Note Co. ; 70, Broad Street, Manhattan, New York, U.S.A.) July 10, 1933, No. 19524. [Class 100 (ii).] Rotary intaglio machines.- In a rotary steel plate printing-machine of the type having a plate cylinder 10, and an impression cylinder or D-roll 13, the cylinders are geared together by means of a continuous gear 14, adjustably secured to the gear 11 of the plate cylinder, and two segmental gears 15, 16 meshing with the gear 14, the gear 16 being freely mounted in relation to the impression cylinder and being yieldingly connected thereto by means of a spring rigging which permits the impression cylinder to be driven frictionally by the action of the printing-plate during the printing operation, so that exact registration is obtained and blurring avoided. The gear 16 extends around the cylinder 13 to an extent which corresponds to the gap between the two ends of the impression blanket and the gear 15 is fixed to the shaft 17 of the cylinder by means of an arm 34 on a plate 35 secured to the shaft 17 by screws. The gears 15, 14 engage to ensure accurate positioning of the cylinders at the commencement of the impression. A gap 18 between the gears 15, 16 permits the gear 16 to yield in either direction during the printing operation and at the end of the operation the spring rigging returns the gear 16 to normal position. The rigging comprises a series of springs 28, 29, 30, 31 arranged between studs 20, 21, 22, 23 projecting from a collar 19 on the shaft 17, and adjustable studs 27 secured to the gear 16. The gear 14 is secured to the gear 11 by means of an annular plate 37 secured to the gear 14 by bolts 36. The gear 14 is adjustable relatively to the plates 37 by means of a screw 45, and bolts 39 secure the plate 37 to the gear 11.
Patent GB-317953-A (GB)
Title: Improvements in or relating to aerial ropeways and the like
IPC: B61B12/02
Filed: 1928-07-05
Abstract: 317,953. British Ropeway Engineering Co., Ltd., and Shields, H. F. H. July 5, 1928. Elevated railways; systems.-To facilitate the transfer of ropeway buckets from their carriers on shunt rails at a loading station to trucks running on ground tracks to and from a loading point, as in a clay-pit or stone quarry, the ground track 14 crosses the shunt rail 11 once only at a transfer point 16 where the buckets are near ground level, and any point such as 16' where the ground track crosses the ropeway is situated where the ropeway is high enough to permit continuous traffic on both levels. As shown, the shunt rail 11 is in the form of a J, but in a modification it forms a U crossed by the ground track at a point such as 16<a>. The hauling rope 13 at the transfer point may drive mechanism for raising and lowering the carriers. This mechanism comprises a pulley 40, Fig. 6, and gearing 39, 37 for rotating a crank-disc 35 which operates a connecting rod 34 and rocking frame 32 carrying a movable section 31 of the shunt rail. The disc 35 is driven through a friction clutch controlled by a hand-line 41 connected to a lever 42. A catch 45 on the lever engages in turn in three notches in the disc so that the mechanism, stops successively in three positions, viz. with the rail section 31 above the level of the shunt rail 11 to prevent a hanger running on to the movable section, with the section 31 level with the shunt rail, and with the section 31 lowered until the hanger is disengaged from the trunnions of a bucket resting on a truck on the ground track.
Patent GB-442367-A (GB)
Title: Improvements in the manufacture of artificial silk
IPC: B65H54/80
Filed: 1934-07-03
Abstract: Viscose artificial silk is spun at a speed greater than 90 metres per minute and is collected, without the assistance of a thread guide or spinning funnel, by the method of the parent Specification, on a plate having a rotary movement and a reciprocating movement or movement having a reciprocating component.  Preferably the filaments are spun into a coagulating bath having a rapid action and containing besides sulphuric acid and sodium sulphate, a salt of a polyvalent metal such as zinc, magnesium, or aluminium.  The plate may be actuated by a planetary drive.  The thread falls freely from a godet on to the plate and is caused by the rhythmic movement of the latter to execute pendulous oscillations resulting in collection of the thread in cross-wound layers.  In an example, viscose is spun at 120 metres per minute, the thread is freed from precipitating liquid by passing over two glass rods and after passing over a godet falls freely for 80 centimetres on to a plate rotating at about 225 revolutions per minute and having a planetary motion of 110 revolutions per minute.
Patent GB-1134916-A (GB)
Title: Improvements in or relating to electric circuit arrangements for use in telecommunications exchange systems
IPC: H04Q3/00
Filed: 1967-04-28
Abstract: 1,134,916. Automatic exchange systems. SIEMENS A.G. 28 April, 1967 [29 April, 1966], No. 19595/67. Heading H4K. In a cross-point array in which bi-stable relays individually set to one state by applying a potential difference to the corresponding row and column conductors, and set to the other state by reversing this potential, isolating devices having a low resistance in one direction of conduction and a non-linear resistance in the other direction are connected in series with the relays. The resistance in the non-linear direction is of high value below a predetermined applied (e.g. threshold) voltage and of low value above it. Each isolating device may be a Zener diode or a rectifying element connected in parallel with a varistor, glow-discharge tube or four-layer diode. For switching selected relays to the first state selecting potentials below the threshold level are employed and the isolating devices function as normal diodes. To switch a relay to its other state a reverse potential difference above the threshold level is applied to the associated row and column conductors. The corresponding isolating device breaks down switching that relay to its other state. Paths in parallel with this relay and its isolating device and which connect to the energized row and column conductors pass through at least two isolating devices in series thus provided the applied potential difference is less than twice the threshold level only the selected relay is switched. Specification 1,058,508 is referred to.