baber/WOPTO huggingface dataset:
Patent GB-804719-A (GB)
Title: Improvements in or relating to apparatus for use in the packing of rail tracks
IPC: E01B27/17
Filed: 1956-10-22
Abstract: 804,719. Rail track packing machines. PLASSER, F., and THEURER, J. Oct. 22, 1956 [Oct. 25, 1955], No. 32159/56. Class 104 (2). A rail track packing machine has a packing tool carrier and, on the machine front in the working direction, a track lifting mechanism. The machine is provided with vertically adjustable carriers 2 for packing tools, which overhang the front of the machine and operate in known manner, and a track lifting device compressing a cylinder 3 with a discharge pipe 4 and a feed pipe 5 for fluid under pressure which acts on a piston 6 to lift rails 11 by means of jaws 8, 9 hinged at 14 to a piston rod 7. The jaws, 8, 9 are moved towards one another by a piston 13 and a cylinder 12 respectively hinged to the arms 9 and 8 and supplied with fluid under pressure through a pipe 15. The arms 8, 9 are provided with friction linings 10 to grip the rail 11. Fluid under pressure is applied to both sides of the piston 6 to prevent vibration of the rail 11 during the packing operation. The hydraulic mechanism may be replaced by mechanisms such as a shaft or worm drives or racks.
Patent GB-430340-A (GB)
Title: Improvements in or relating to electric arc converters
IPC: H02H7/127
Filed: 1933-11-18
Abstract: 430,340. Converting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and TAYLOUR, H. H., c/o General Electric Co., Witton, Birmingham. Nov. 18, 1933, No. 32192. [Class 38 (ii)] In converter installations comprising arc discharge devices adapted to rectify or invert wherein means are provided whereby when the arrangement is operating as a rectifier discharge at the main electrodes is suppressed under fault conditions on the D.C. side either by the application of blocking potentials to control electrodes or by suppression of synchronous starting potentials normally effective to produce arcing at the main electrodes, means are provided whereby the D.C. circuit is bridged when the rectifier is to be rendered inoperative thus preventing the discharge at the main electrodes being prolonged by energy stored in inductive elements in the D.C. network. In the arrangement shown, a multi-anode rectifier 1 fed by a polyphase transformer 10 is provided with an auxiliary anode 18 associated with a grid 25 which normally blocks the auxiliary discharge circuit by reason of a negative potential supplied by a source 29. A relay 28 responsive to conditions in the D.C. network 16, 17 operates under fault conditions in that network to remove the blocking voltage from the grid 25 thus permitting energy stored in the D.C. network to discharge through the auxiliary discharge circuit which includes a resistance 36. At the same time blocking potential from the source 29 is applied through back contacts on the relay 28 to the grids associated with the main anodes 2 ... 7. If desired, the relay may be arranged to apply positive potential to the grid if the auxiliary anode 18 to effect starting of the discharge which bridges the D.C. network.
Patent GB-1069956-A (GB)
Title: Improvements in or relating to forced flow,once-through vapour generating and superheating units
IPC: F22B29/06
Filed: 1964-08-07
Abstract: 1,069,956. Forced flow steam boilers. BABCOCK & WILCOX CO. Aug. 7, 1964 [Aug. 7, 1963], No. 32231/64. Heading F4A. In a forced flow once through boiler having a first heating section heated predominantly by radiation, a second heating section heated by gases at a lower temperature and a superheating section, a by-pass is provided around the second heating section, the flow through the by-pass being adjusted in relation to output whereby at lower loads the by-pass is closed but at higher loads it opens to reduce the pressure drop across the second section. In the form shown, the boiler has an upright tube-lined furnace chamber 10 divided into three compartments by tubulous partitions, each compartment being fired by ten pulverized fuel burners 49. Gases leave the furnace compartments through a lateral pass 17 leading to a downpass 19 whence the gases flow through two parallel downpasses 26 and an air heater 25 to the stack (not shown). The lateral pass 17 contains secondary superheaters 30, 33 and a secondary reheater 34. A vertical baffle 38 divides the downpass 19 into sections 36, 37. The upper parts of sections 36, 37 contain primary superheater and reheater sections 39B, 41 respectively, whilst the lower parts of both sections contain a primary superheater section 39A. Gas flow distribution between the sections is controlled by outlet dampers 43, 44. The downpasses 26 contain economizer portions 42. Feedwater flows through the economizers to the radiantly heated boundary walls and partitions of the furnace and passes through these to a mixing vessel 93. It flows thence through the less highly heated boundary and partition walls of the passes 17, 19 and then through the primary and secondary superheater sections to discharge to the turbine through a conduit 142. Reheat temperature is controlled by the proportioning dampers 43, 44 whilst superheat temperature is controlled by regulating the firing rate of the burners. During operation of the boiler in the upper part of its load range a portion of the working fluid is by-passed around the boundary and partition walls of the passes 17, 19, the valves controlling the by-pass flow being closed at low loads and during starting. The valves can be controlled manually or automatically depending on the generator load. When the valves open the pressure drop across the boundary and partition wall heating surface of passes 17, 19 is reduced so that required feedpump power is correspondingly less.
Patent GB-194640-A (GB)
Title: Improvements in or relating to pipe or tube bending machines
IPC: B21D7/022
Filed: 1922-11-25
Abstract: 194,640. Hawes, J. H. Nov. 25, 1922. Angular bending and curving.-In an apparatus for bending pipes and tubes, particularly thin tubes, of the type in which a roller carried by a sweep arm moving round a former or radius wheel transmits the pressure to the tube through a straight grooved shield, the roller engages the shield at a point between 10‹ and 25‹, preferably 15‹ beyond the radial line passing through the bending point. The base plate a cf the apparatus has a bracket b against which is supported the flat part c<1>, one of a number of interchangeable grooved and flanged formers c, which are secured in position by a removable through pin d forming the pivot of the operating lever e. The tube h abuts against a removable stud i, which is fitted in one of a number of holes j in the base plate and has a groove i<1> at one side for use in bending straight tubes and a curved groove at the other side for use in bending previously bent tubes as in forming S-bends. Prior to bending, an elongated grooved shield g is inserted between the tube and the bending roller f on the lever e which is preferably cranked and arranged substantially at right angles to the table. During the operation of the lever the roller travels over the back of the shield, which has thin edges so that it may slide between the flanges of the former. When the roller approaches the end of the shield the lever is moved back to release the shield, which is then slid forward along the unbent portion of the tube and the operation repeated.
Patent GB-522416-A (GB)
Title: Improved method of and means for forming grinding-wheels for use in grinding internal screw-threads
IPC: B24B53/07
Filed: 1938-11-08
Abstract: 522,416. Trueing grinding-wheels. COVENTRY GAUGE & TOOL CO., Ltd., HARLEY, S. J., and WAINWRIGHT, J. E. Nov. 8, 1938, No. 32314. [Class 60] Wheels for grinding screw threads particularly internal threads are dressed by a crushing roller given a combined planetary and axial movement to produce a wheel form in which interference has been allowed for. The crushing roller 7 is mounted on a stud 8 adjustable in a slot in a crank arm 6 on a shaft 4 having a screw threaded engagement with a bush 5. On rotation of the shaft by a handcrank and worm gearing 9 the roller 7 is swung through an arc about the wheel 12 mounted on an axis parallel to the shaft 7 and is at the same time moved axially an amount corresponding to the lead of the thread. The roller 7 is set so that the distance A from the axis of the shaft 4 is equal to the radius of the bore 14 in which the thread is to be ground. The arc through which the roller is swung corresponds to the arc of engagement between the wheel 12 and the work.
Patent GB-1321888-A (GB)
Title: Electrical control devices
IPC: H01H5/04
Filed: 1970-07-03
Abstract: 1321888 Snap-action switches; ohmic resistors CTS CORP 3 July 1970 [3 July 1969] 32469/70 Headings H1N and HIS An electric switch comprises one or more bridging roller contacts 63, 64, Fig. 3, engageable across contact pairs 77a, 81a under the action of springs 62 which deflect angularly (cf "off" position shown in Fig. 8) to assist the snapaction movement of the roller contacts when the actuator 67 moves across the over-centre position. The arrangement is also stated to produce a rolling and wiping movement off the contacts. In the particular arrangement shown the rollers are engaged at two points only by the end coil 62b of each spring whereby the end coil is free to deflect angularly with respect to its normal plane at right angles to the longitudinal axis of the spring. The arrangement also permits the rollers to take up any misalignment of the contact pairs 77a or 81a and reduces contact bounce. The actuator cam 67 is of insulating material and is coupled to a shaft 43 via a headed end 56 on the shaft engageable in a slot of the cam 67. The shaft is also rotatable and keyed to a rheostat actuator 42. In a modification an actuator shaft 96, Fig. 12, is releasably coupled by a headed end 106 to engage in notches 104 of resilient arms 98, 99 of the camming actuator member 95. Alternatively the actuator shaft (117), Fig. 14 (not shown), may be of nylon and integral with the cam actuator (116a).
Patent GB-460804-A (GB)
Title: Improvement relating to coffin handles
IPC: A61G17/04
Filed: 1935-11-23
Abstract: 460,804. Drop - handles. INGALL, PARSONS, CLIVE, & CO., Ltd., and BIRD, W. J. Nov. 23, 1935, No. 32485. [Class 52 (i)] The pintles 5 of a drophandle 7 for coffins are bifurcated and are spread after insertion in the mount pommels 4a.
Patent GB-201093-A (GB)
Title: Improvements in or relating to gear change indicating devices for automobiles
IPC: B60Q1/54
Filed: 1922-11-28
Abstract: 201,093. MacLean, A. D. Nov. 28, 1922. Variable-speed gearing upon motor vehicles is provided with means for indicating the relative speeds of the teeth of different gears so as to facilitate changing speed. A single pointer 27 on its spindle 26 is connected through speedometer mechanism and a flexible shaft 25 to a gear 23 on driving-shaft 2 of the speed gear. The propeller shaft 3 is connected through flexible shaft 20 and speedometer mechanism to an arbor 21, to which are adjustably fixed pointers 28 - - 31, which give indications of the tooth speeds of members of the speed gear. Coincidence of the pointer 27 with one of the others indicates a speed change which can be made without shock. The scale 36 is graduated in miles per hour and also in revolutions of the engine.
Patent GB-414938-A (GB)
Title: Improved method of making water-proof matches
IPC: C06F3/00
Filed: 1933-11-21
Abstract: 414,938. Matches. LARSSON, L. E., 33, Gr÷na Gatan, J÷nk÷ping, Sweden. Nov. 21, 1933, No. 32514. Convention date, Nov. 28, 1932. [Class 50.] A binding agent for the igniting composition of waterproof matches comprises a substance such as an artificial resin, e.g. resole, or a cellulose derivative, e.g. cellite, insoluble in water but soluble in an organic solvent and returning to a hard consistency when the solvent evaporates, the binder being such that the igniting composition is not substantially more combustible than the usual glue-containing compositions. The mixture including active substances is applied to splints to form heads in the usual way and dried. In an example the precipitated resole obtained by heating 100 parts phenol, 100 parts formalin, and 5 parts ammonia to about 100 C. is dissolved in alcohol or ground with one or more of the ingredients not evolving oxygen and moistened with alcohol before admixing the remaining chemicals. The composition consists of potassium chlorate, potassium bichromate, manganese dioxide, sulphur powdered glass and resole. The heads may be hardened at 100-150 C., or at a lower temperature if an accelerator such as hexamethylene tetramine is added. The matches are preferably paraffined after this operation. Specification 355,901 is referred to.
Patent GB-781832-A (GB)
Title: Penicillin in solid dosage unit form
IPC: A61K31/43
Filed: 1955-11-14
Abstract: 781,832. Oral penicillin preparations. AYERST, McKENNA & HARRISON, Ltd. Nov. 14, 1955 [Sept. 2, 1955], No. 32539/55. Class 81 (1). A therapeutic dosage unit in solid compressed form comprises a water-soluble penicillin salt, a water-insoluble and acid-insoluble protein which is soluble in a saturated aqueous solution of the penicillin salt, an acid-insoluble, alkali-soluble medicinal shellac and excipients, and is substantially resistant to the action of the gastric juice while readily disintegrating and releasing its penicillin activity in the presence of intestinal juice. The tablet or the like contains 25 to 50, and preferably, 33 per cent by weight of the penicillin salt, 15 to 25, and preferably, 20 per dent of the protein and 8 to 15, and preferably 10, per cent of the shellac. Buffers are added to maintain a pH of 5.5 to 7.5 in aqueous solution. The excipients are such as do not activate the penicillin, e.g. lactose, sorbitol and magnesium stearate. An example is given of a tablet prepared by dissolving white shellac in isopropanol and mixing this with a blend of potassium penicillin G, edible casein, sodium citrate, calcium carbonate, lactose and sorbitol. In the Figure the penicillin blood levels obtained when the tablet is administered orally is compared with those obtained with tablets of dibenzyl ethylene diamine. Other water-soluble penicillin salts which may be used in place of the potassium salt are the sodium and ammonium salts of penicillin G. Zein may be used instead of edible casein.
Patent GB-962864-A (GB)
Title: A process for the preparation of 2,3-o-isopropylidene purine ribonucleosides
IPC: A23L27/23
Filed: 1962-08-24
Abstract: In a process for the production of 21, 31-O-isopropylidene purine ribonucleosides, a purine nucleoside is reacted with acetone in the presence of a solution of an inorganic acid or an organic sulphonic acid in an alcohol, a phenol or an ethylene glycol ether or ester.
Patent GB-1171716-A (GB)
Title: Optical recording of superimposed sound tracks.
IPC: G11B7/14
Filed: 1967-07-17
Abstract: 1,171,716. Optical recording. BELL & HOWELL CO. 17 July, 1967 [18 July, 1966], No. 32685/67. Heading G5R. In a variable-density optical recording device for recording two or more signals on a single track on a moving light-sensitive medium, each signal modulates the intensity of a light beam which is directed to strike said medium over an elongate area, each area having its longer dimension at an angle to the longer dimension of each other area and to the direction of motion of the medium. Sound signals picked up by microphones 24 are amplified 22 and applied to the variable intensity light-emitting transducers 14, 16 both of which record on the track W. The transducers may be solid state devices with their light-emitting junctions disposed with their long dimensions at 45 degrees to the direction of movement of the film 8 and perpendicular to each other. Alternatively the transducers may be conventional variable intensity light screens projecting light on to the film via narrow slots or slits disposed similarly to the light emitting junctions. The separate signals are played back by photo-cells receiving light via the film track and slots similarly disposed to the recording elongate areas. The signals may be further separated by recording on colour film using a different colour for each channel.
Patent GB-966220-A (GB)
Title: Improvements in elevating and extension ladders
Inventor: OFMAN HENDRIK LUCAS
IPC: E06C5/06
Filed: 1960-09-23
Abstract: 966,220. Ladders. GEESINK N.V. Sept. 23, 1960, No. 32724/60. Heading A6L. The speed of inclining, slewing or extending a ladder is reduced as the ladder is extended by a device dependent on the extension and/or inclination of the ladder. The supply of fluid to the mechanisms controlling these movements is restricted as the ladder is extended and/or inclined. In the modification of Fig. 2 the ladder is inclined by a double-acting piston-andcylinder 22 operated by fluid from a pump 6 and ducts 9, 17, 17<SP>1</SP> or ducts 9, 19 controlled by a valve 13, fluid being supplied through ducts 17, 17<SP>1</SP> to the chamber 25 of the cylinder 22 to raise the ladder and exhausted through these ducts to lower the ladder: The connection between the ducts 17, 17<SP>1</SP> is controlled by a piston valve 33 having tapered ports and moved by a shaft 32 moved axially by a screw thread in a drum 30 on which is wound a cable connected to the ladder extension mechanism so that as the ladder is extended the connection between the ducts 17, 17<SP>1</SP> is restricted. When the ladder is lowered and the valve 13 connects the pump 6 to the duct 19 fluid is also supplied to a duct 19<SP>1</SP> to press down a piston 27 and open a check valve 28 to connect the lower chamber 25 of the cylinder 22 to the ducts 17, 17<SP>1</SP> and exhaust. In a modification, Fig. 3 (not shown), the fluid supplies to operate inclination, slewing and extension, pass through tapered valve 33 operated by a lever moved by a drum 30 moved by the extension mechanism and a slotted quadrant connected to the inclining gear. Specification 643,010 is referred to.
Patent GB-604836-A (GB)
Title: Improvements in and relating to toy catapults
IPC: F41B3/02
Filed: 1945-12-05
Abstract: 604,836. Elastic cord attachments. MILLARD BROS, Ltd., and McCALLUM, J. W. Dec. 5, 1945, No. 32891. [Class 109] [Also in Group XV] The ends of elastic cords 4 are secured in apertures 3 provided in the arms 2 of a toy catapult by means of an expansible bush adapted to fit round the portion of the cord lying within the aperture while the cross section of the portion is reduced by stretching, so that on the cord being released the elastic material flows radially outwards within the bush to give friction tight engagement of the several. parts. The bush is preferably longitudinally divided forming half-sleeve portions 8, the sleeve portions being flanged at one end 9. The bush may comprise more than two co-operating parts and the outer and inner surfaces may be other than cylindrical. The bush parts may be expansibly interconnected, and may be made of metal, plastic, wood &c. The bore defined by the parts of the assembled bush may be tapered.
Patent GB-753592-A (GB)
Title: Welding flux
IPC: B23K35/362
Filed: 1953-11-27
Abstract: Ferro-molybdenum slag is used as a flux in the process of submerged arc welding.  The flux may, in addition to the said slag, contain up to 35 per cent. of a known fluxing agent, slagging agent or arc stabiliser such as zircon, rutile or ilmenite, and/or up to 35 per cent. roasted manganese ore.  Up to 15 per cent of ferro-titanium slag may be added to the flux as an alternative source of titanium oxide.  Suitable flux compositions are as follows, the proportions being in per cent: ..(1).(2).(3).(4) .Ferro-molybdenum.70-100.70-100.50-70.50-70 .slag.... .Roasted manganese.0-30..14-30.14-30 .ore.... .Unground rutile..0-30.0-30.0-30 .Ferro-titanium slag....0-15
Patent GB-890015-A (GB)
Title: Improvements in or relating to reinforcing rods for concrete
Inventor: KERN GEORG
IPC: E04C5/12
Filed: 1958-10-15
Abstract: 890,015. Screw-threads. LUBBERT, E., SCHULZ, E., FINSTERWALDER, U., JECHT, R., and RUF, E. Oct. 15, 1955, No. 32967/58. Addition to 881,839. Class 80 (3). A concrete reinforcing or prestressing rod 1 has cold-rolled thereon a screw-thread whose rounded root 2 is of larger radius of curvature than the rounded crest 3, the ratio between the two radii lying in the range 4.0 to 5.5. A nut 4 has a complementary thread therein. The threaded rods are made from plain rolled rods by machining off the hard rolling skin before a thread is cold-rolled thereon.
Patent GB-521061-A (GB)
Title: Improvements in apparatus for removing dust and other impurities from air and other gases
IPC: B01D46/00
Filed: 1938-11-12
Abstract: 521,061. Filtering gases. YUILLE (METAL WOOLS), Ltd., J., and BAKER, G. D. Nov. 12, 1938, No. 32991. [Class 8 (ii)] Inclined filter screens 10 of metal wool &c. are located between the valved inlet 2 and valved outlet 3 of a chamber through which gas to be filtered is passed, and sets of interconnected louvres 11 are located between the screens ; the louvres and the valves are connected so as to open and close simultaneously and when both are closed cams 12 are rotated to tap the screens, which are pivoted at their upper ends. A weighted lever may hold the valves in either required position. The cams may be actuated by hand ; or from the fan shaft or its motor, through a clutch and reduction gearing, the clutch and valve having locks which prevent the clutch being engaged before the valve is closed and prevent the valve being opened before the clutch is disengaged. Alternatively, the valve may be opened by a pull cord connected to the electric starter of a motor which drives the cams. Specification 458,629 is referred to.
Patent GB-760662-A (GB)
Title: Improvements relating to carburetters of the spray type
IPC: F02M9/14
Filed: 1954-11-15
Abstract: 760,662. Spray carburetters. SCHAFER, G., and SCHAFER, O., [trading as KUGELFISCHER G. SCHAFER & CO.]. Nov. 15, 1954 [Nov. 14, 1953], No. 33047/54. Class 7 (3). The choke tube which surrounds a fixed fuel discharge nozzle or nozzles is adapted to move in a manner dependent on one of the factors determining the power output of the engine the displacement of the choke tube in the direction of the axis of the air intake duct being controlled in such a manner that within the range of the carburetter between idling and full load conditions the choke tube is moved to and fro so that its narrowest cross section which is initially when the engine is idling located at the approximate position of an aperture of the fuel discharge nozzle is moved away from the aperture and is subsequently moved towards the aperture. As shown a slidable venturi 3 is operated conjointly with the throttle valve 4 but alternatively it may be operated according to the vacuum in the air intake, duct on the speed of the engine at the rate at which mixture is admitted to the engine. When the throttle valve is fully opened the venturi is returned to nearly the same position which it assumes when the throttling valve is closed.
Patent GB-523946-A (GB)
Title: Improvements in low-temperature processes for the preservation of perishable foodstuffs
IPC: F25D3/10
Filed: 1939-01-17
Abstract: 523,946. Cooling vegetables and fruit. JOSEPHSON, sen., W. S., and JOSEPHSON, jun., W. S. Jan. 17. 1939, No. 33072. Divided out of 521,715. [Class 29] Peas and other vegetables and fruit to be frozen in large vessels in which carbon dioxide evaporates from the liquid form and is again compressed, condensed and re-evaporated, as set forth in Specification 521,715, are placed in a paper-like container 95 set in a thick-walled tapered stainless-steel pan 93. The pans are supported in holed shelf supports of a rack removable through the top cover of the freezing vessel, or supported on a bottom which may be raised and lowered by a ram, as described in Specification 521,715. The field heat of the vegetables &c. may be removed by washing with water before the freezing treatment.