baber/WOPTO huggingface dataset:
Patent GB-1417377-A (GB)
Title: Method of and a machine for manufacturing foam especially  polyurethane foam from a free-flowing reaction mixture
IPC: B29C39/44
Filed: 1974-04-02
Abstract: 1417377 Mixing apparatus MASCHINENFABRIK HENNECKE GmbH 2 April 1974 [5 April 1973] 14475/74 Heading B1C [Also in Division C3] An apparatus for the manufacture of plastics foam material comprises supply tanks for the foam-forming components from each of which a pipe incorporating a pump leads to a mixing head, at least one pipe incorporating a mixer into which a gas line opens, the mixer being preceded by a pressure pump and a residence-time unit incorporating a pressure generator being arranged between the mixer and the mixing head. In Fig. 1 a pipe 2 leads from a supply tank 1 to a mixing head 3, the pipe being provided with a reversing valve 4. A pump 5 delivers the component stored in tank 1 to mixing head 3 and brings it to a higher pressure level under which it is expanded into a mixer 6 through nozzle 7. A compressed air line 8, which contains a throttle valve 9 opens into mixer 6. A section 10 of the pipe 2 functions as a residence-time unit and a pressure generator 12 is arranged at an elevated point 11. A recycle pipe 15 terminates in a reversing valve 4. The residence-time unit 10 is fitted with a measuring element 16 which transmits its measured valve to a controller 17 which compares it with a preset value and adjusts valve 9 through adjusting member 18. The second component is delivered to the mixing head through a pipe 19 and a metering pump 20. In Fig. 2 a similar apparatus is shown, which differs from the apparatus of Fig. 1 in that the residence-time unit is in the form of an intermediate container 30, a pressure generator 32 being arranged on the upper part 31 of the intermediate container. A useful mixer for the process is shown in Fig. 3. In this a pipe 43 opens through a nozzle 44 into one end 45 of an outer shell 46. A compressed air line 47 opens adjacent the same end, but at the periphery. A radial wall 48 adjoined by an inner concentric shell 50 is arranged in the shell 46 at a point corresponding to about one third of the length of the mixer 42. The wall 48 is provided with perforations 51 and, at its rear end, is closed by an end wall 52 arranged at a distance from the second end wall 53 of the outer shell 46. The pipe 43 leads off from the wall 53.
Patent GB-676634-A (GB)
Title: Differential change-speed gear
IPC: F16H59/18
Filed: 1949-05-30
Abstract: 676,634. Variable-speed gear. BOITE AUTOMATIQUE PLANETAIRE B.A.P. May 30,1949 [June 1, 1948], No. 14519/49. Class 80 (ii). [Also in Group XXXIV] A planetary two-speed gear for a vehicle, crane or machine-tool, controlled automatically by vehicle-speed, engine fuel-supply position and a supervisory manual control, giving transitional up and down shift without power interruption, comprises a direct-drive friction disc clutch 9, between an input sun-wheel shaft 7 and a freely mounted reaction planet-carrier 10; and a reduced-drive band-brake 19 which is at all times effective to prevent backward rotation of the planet-carrier (so that shifts occur without power interruption), but is, on completion of a downshift, tightened thereon to prevent rotation in both directions to provide a bidirectional reduced drive. Hydraulic pressure from a single input-driven pump 17 actuates the clutch 9 through an annular piston 8, and the brake 19 through a piston 28, under control of a rotary selector-valve 16 on a spindle 38 actuated, through a toothed segment 39 and pushrod 36, conjointly by a centrifugal governor 32 driven by an output sun-wheel shaft 13; by a control for the engine fuel-supply (providing torque-response), which acts through a link 35a, bellcrank and sleeve 29 to vary the loading of the governor-spring 30; and by a manual lever 41, which can be set to limit the travel of stops 40 on the segment 39, and can also be used for enforcing a shift in opposition to the governor. The ends of the brake-band 19 are attached to the opposite ends of a two-armed lever 22, which turns on an off-centre fulcrum pivot 23 slidable in a radial slot in a complementary brake-shoe 21, which is restrained against rotation in both directions by a torque-arm 18. In the pressure-less condition shown in Fig. 2, clockwise rotation of the underlying drum 10 causes the unequal arms of the lever 22 to contract the band 19 onto the drum and prevent its rotation, whereas anticlockwise rotation causes release of the drum. Application of oil-pressure to the brake piston 28, which occurs simultaneously with exhaust of the direct-drive clutch-piston 8 for downshift, causes a cam-end of a lever 24, also fulcrummed at 23, to press radially inwards on the brake-shoe 21, forcing out the fulcrum 23 to tighten the brake-band 19 for both directions of rotation. Two or more such gears may be arranged in series to provide additional ratios, and the gear may be driven through a fluid-coupling.
Patent GB-401745-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N1/12
Filed: 1933-05-19
Abstract: 401,745. Exhaust silencers. SAVI, L., 47, Via S. Donato, Turin, Italy. May 19, 1933, No. 14583. Convention date, May 20, 1932. [Class 7 (ii).] A silencer comprises a double conical chamber a connected by a series of pipes d, preferably twisted spirally, to a final cone e. Within the double cone a are fitted a number of cones o corresponding to the number of pipes d and leading to flat spirally twisted pipes r, which extend through the pipes d and have their open ends connected thereto, for example by wires. A partition p separates the double cone a from the pipes d, the exhaust gases having access to these pipes through a series of tubes n. Airinlet cones i are connected by conduits i<1> to the spaces between the pipes d and r.
Patent GB-1279342-A (GB)
Title: Method and device for texturing a yarn
IPC: D02G1/02
Filed: 1970-03-25
Abstract: 1279342 False-twist crimping; twist tubes MOULINAGE ET RETORDERIE DE CHAVANOZ 25 March 1970 [28 March 1969] 14621/70 Headings D1D and D1F A thermoplastic yarn is bulked by heating to a plastic state and subjecting it to two or more successive false-twisting operations separated by passing the yarn through a pair of guides, each of which changes its direction of travel. The false-twisting may be performed by conventional friction surfaces or twisttubes, or apparatus as in Figs. 2 or 5 may be used. In Fig. 2, yarn 1 is twisted twice in opposite directions, being led twice over an annular moving friction surface 16 by guides 23, 20, 21 and 24. In Fig. 5, the twist directions are the same, the yarn 1 being led three times through an annular friction surface 32 by guides 23, 25, 27. The friction surface may be elastomeric or ceramic. The yarn may be cooled between the two false-twisting operations by intermittent operation of an air jet.
Patent GB-272888-A (GB)
Title: Improvements in or relating to electrostatic condensers
IPC: H01G4/38
Filed: 1927-05-31
Abstract: 272,888. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Marbury, R. E.). June 16, 1926, [Convention date]. Condensers.-A condenser comprises a number of sections or elements connected in parallel in an enclosed tank and impregnated with fluid such as oil, and each element is connected through a separate fuse to a terminal prior to vacuum treating and impregnation. The assembled condenser is tested, after impregnation, at a voltage high enough to break down one or more of the elements so rupturing their fuses and disconnecting them without rendering the entire condensers useless. Fig. 2 shows a 2¢ K.V.A., 220 volt condenser the sections 1 of which are assembled in a tank 3 wherein the whole is vacuum-treated and impregnated. Each section is wound on a mandrel 6 of fish paper or other insulation and comprises aluminium foils 7, 8 separated by three sheets 9 of paper of about 0.4 mils. thickness. Terminal strips 10, 11 in contact with the foils are secured to the fuses 2 and mandrel 6 by eyelets 12 and eyelets 15 connect the leads to the other ends of the fuses. The fuses 2 are applied to a shellac coating on the mandrel and are in the form of tin foil strips reduced in cross-section by punching a hole 16 therethrough, thereby avoiding the need for handling small strips. The sections may be tested dry after winding to weed out defective ones and are then clamped in the tank 3 by plates 18, a larger number being assembled than is required for the rated capacity so as to allow for defective ones. The leads from the fuses are connected to terminals 20 and the tank is soldered up to make it vacuum and oil-tight. The final treatment comprises 100 hours under vacuum before impregnating with high grade oil (preferably one which is fluid at all operating temperatures), closing the tank by means of the plug 5 and testing at a voltage higher than the rated one. The faulty sections will be disconnected by these fuses, as allowed for in the extra sections. The Specification describes at length a method of manufacture of larger condensers and shows, with numerical examples, how the present invention solves some of the problems arising therein.
Patent GB-807231-A (GB)
Title: Securing means for blading of compressors or turbines
Inventor: KREBS JAMES NORTON
IPC: F01D11/00
Filed: 1955-05-20
Abstract: 807,231. Turbine and compressor blade shrouding. GENERAL ELECTRIC CO. May 20, 1955, No. 14659/55. Class 110 (3). [Also in Group XXV] In a turbine or compressor, the free ends of a row of rotor or stator blades are interconnected by means of shrouding comprising a pair of shroud bands, one disposed radially within the other, each band being formed with circumferentially-spaced slots or perforations through which the free ends of the blades project, means other than the blade ends or shroud bands being provided for securing the blade ends to the shrouding. In the compressor shown the blades 11 secured to the stator casing 10 are disposed between blades 21 secured to the rotor discs 20. The free ends of the blades 11 are formed with tongues 12 which are passed through slots P in the outer and inner shroud bands 14 and 15. The circumferential edges of the slots P in the band 14 are formed with tangs 14a and the axial edges of the slots P in the band 15 are formed with tangs 15a, the tangs 14a and 15a preventing circumferential and axial movements respectively. The parts are secured together by means of a double U-shaped spring clip 16 disposed around the tangs 14a, 15a and a cotter-pin 17 passed through a hole 13 in the free end of the blade 11. Other forms of spring clip are described in which the locking pin is located in a depression in the surface of the clip. The outer band 14 is formed of channel-section and the flanges 14b thereof co-operate with flanges 22 formed on the rotor discs 20 to constitute a sealing means.
Patent GB-735966-A (GB)
Title: Improvements in or relating to boat raising, lowering, engaging and disengaging gear
Inventor: NOCK JOHN BRUCE
IPC: B63B23/58
Filed: 1953-05-28
Abstract: 735,966. Boat disengaging gear. MILLS (SUNDERLAND), Ltd., W. May 26, 1954 [May 28, 1953], No. 14848/53. Class 115. In a boat disengaging gear having two hook members d controlled from a common operating position and automatically engageable by eye extensions or loops c upon pulley blocks associated with the davits, inadvertent release being positively prevented until the boat is waterborne, each hook member d is formed integral or provided with a counter weight d<SP>1</SP> and is pivotally mounted at d<SP>4</SP> between two spaced parallel similar plates a, the lower ends a' of which are secured to the keel b or other rigid portion of the boat whilst the upper ends have heads a<SP>2</SP> in which are formed open-ended upwardly directed slots a<SP>3</SP> adapted to receive and to co-operate with the hook member in locating and retaining the eye or loop c, the hook member having connected thereto at d<SP>3</SP> a chain or cable e connected to an operating handle.
Patent GB-350684-A (GB)
Title: Vitaminized food seasonings
IPC: A23L27/10
Filed: 1930-05-14
Abstract: Food seasonings and sauces containing vitamins are obtained by subdividing moist vitamin-containing vegetable extracts and coating the particles thereof with rice, yeast, or egg ground to a flour to produce a free running powder which is mixed with the seasoning ingredients which include spices, onion, lemon, breadcrumbs, herbs, salt, pepper, horseradish, and milk, all in dried form.  The powdered extracts may be prepared by mixing the vegetable extracts with powdered rice, yeast, or egg to give a paste which is passed through a mincer and a perforated plate in front of which is a revolving knife which cuts the paste into small particles.  The material is subjected again to this treatment using a plate with smaller perforations, and is next placed in a mixer having horizontal sieves, of varying mesh, to which a horizontal vibrating motion is imparted. Powdered rice, yeast, or egg is added in the mixer, and the particles become coated therewith.  Four parts by weight of the product may be mixed with 40 parts of seasoning and the mixture may be used for sausages, meat, or other foods.  Horseradish or onion sauce may be obtained by drying the horseradishes or onions and grinding to a fine powder which is mixed with an equal amount of flour or dried milk and flavoured with pepper or salt.  The powdered vegetable extract is blended with the mixture in a mixer having sieves or gratings to which a horizontal vibrating motion is imparted, and by addition of water to the product the sauce is obtained.
Patent GB-1216378-A (GB)
Title: Method of and apparatus for making sheet glass
Inventor: GORSHKOV GENNADY NIKOLAEVICH
IPC: C03B18/18
Filed: 1968-03-28
Abstract: 1,216,378. Float glass manufacture. SARATOVSKY FILIAL GOSUDARSTVENNOGO NAUCHNO-ISSLEDOVATELSKOGO INSTITUTA STEKLA. "28'March,-I968, No. 1-4867/68. Heading G1M. .In a method of making float glass, the tank 3 containing the bath of molten metal 4 is provided at.its outlet end with a wall 10 the top of which is below the surface of the molten metal, the molten metal continuously overflowing the -wall .10-into a.chamber 11 where it is cleansed of impurities and subsequently recycled into the bath 4, molten glass being flowed, directly from a melting furnace on-.tothe molten metal bath. The.chamber 1 1.has an overflow shoot 12 leading into one of'two tanks 13, 14, in communication with each other by a-submerged passage 15. The impurities collect on top of the metal in tank 13 and are removed through a port '23. The molten metal flows into tank 14 and from there it is pumped into a header tank 16 from where it is fed' back into the bath at constant pressure through a pipe 19 located in the bath slightly upstream of wall 10. The pipe 19 has a plurality of orifices so located that the re. cycled metal issues out as jets -against the underside of the glass ribbon 20 formed on the molten metal surface. Graphite 25 covers the surface of the metal in tank 12 to prevent oxidation of the metal.
Patent GB-202741-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C23/10
Filed: 1922-05-26
Abstract: 202,741. Griffiths, E., and Armstrong, Whitworth, & Co., Ltd., Sir W. G. May 26,1922. Jib cranes.-To obtain approximately horizontal travel of the load in lufting, the load-rope E passes over the jib-head sheave A, a sheave B suitably located on the crane structure, a sheave C on a link D pivoted to the jib-head, a second sheave B, and to the hoisting drum F. There may be more than one sheave at C and more than two at B. The rope E may be led through a fall-block and secured to the jib-head or reeved again over the sheaves at A, B. C. An additional sheave may be provided on the link D for a luffing rope.
Patent GB-649096-A (GB)
Title: Improvements in and relating to transformer tap changing under load systems
IPC: H01H9/00
Filed: 1947-06-05
Abstract: 649,096. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. June 5, 1947, No. 14893. Convention date, June 7, 1946. [Class 38 (ii)] [Also in Group XXXVII] An on-load transformer tap-changing system comprises ratio adjusters co-operating with taps of the windings, a reversing switch and a set of transfer switches wherein the transfer switches are actuated from a train of cascaded Geneva gears, the first gear in the train being actuated by a lay-shaft driven from the main drive shaft driving the ratio adjusters and the reversing switch. A reversible motor 31 drives a main shaft 12 through gearing and a clutch 33, the tap-changing ratio adjusters 4, 5, 6, 7 being driven by the shaft through any suitable means (e.g. Geneva gears) in known manner. Initial rotation of the shaft 12 from the neutral position (shown in the Figure) causes the layshaft 29 to rotate a cam-shaft 25 through cascaded Geneva gears 28, 27, 26 so that one or other of the transfer switches 20, 22; 21, 23 is opened after a few degrees rotation of the cam 24. Thus the necessary change of transformer connections is made before any step has been made by the ratio adjusters. At the end of a sequence of operations of the ratio adjusters the cam 39 operates one or other of the limit switches 37, 38 to stop the motor, an additional safeguard being provided in the form of a clutch 33 which disconnects the shaft 12 from the motor 31 should the limit switches fail. A reversing switch 15 is provided to reverse the connection of the winding 2, but since it may be operated at any time during the initial half revolution of the ratio adjusters 6, 7 it may be of the slow operated type and be driven from the drive for the ratio adjusters 4, 5. After the initial movement of the shaft 29 to operate the transfer switches, further movement of the shaft causes the transfer switches to open correspondingly more as the voltage between the lines 16, 17 increases.
Patent GB-599548-A (GB)
Title: Improvements in or relating to mercury arc rectifiers
IPC: H02M1/02
Filed: 1944-08-04
Abstract: 599,548. Electromagnetic relays. MASCHINENFABRIK OERLIKON. Aug. 4, 1944, No. 14895. Convention date, Aug. 21, 1943. [Class 38(v)] [Also in Group XL] In an electromagnetic relay for use in a mercury arc rectifier excitation and ignition circuit, [see Group XL], the contacts 15 are operated by leakage flux from the choke coil 12 in the excitation circuit, which is wound on a core 11 with an airgap 13. The relay operates over a wide range of current, e.g. 1 to 6 amps.
Patent GB-288052-A (GB)
Title: A device for sharpening blades for razors and the like
IPC: B24D15/08
Filed: 1927-06-07
Abstract: 288,052. M³ller, P. June 7, 1927. Stropping-apparatus for razors &c. consists of a carriage 2 carrying a blade-holder 9 mounted on a shaft 7, which is reciprocated by a handle 1 along a strop 13 carried in a frame 5, guide-bars 3, 4 being provided on the frame, and the bar 4 having thereon rack teeth. The blade-holder is reversed by the rack, through pinions 6, 8, and is frictionally mounted on the shaft 7, a spring collar 12 providing the necessary friction. The strop 13 is carried by a frame 14 which may be reversible and provided with another strop 15. In a modification, the bar 4 has rack teeth on its underside in addition to those on its upper side, and a second blade holder is provided on the carriage, so that two blades may be treated simultaneously, one on each of the strops 13, 15.
Patent GB-894546-A (GB)
Title: A speed reduction unit for a cooling tower fan drive
Inventor: SCHMITTER WALTER P
IPC: F16H57/022
Filed: 1960-04-28
Abstract: 894,546. Toothed gearing. FALK CORPORATION. April 28, 1960, No. 14966/60. Class 80 (1). [Also in Group XXXIV] A motor-driven reduction unit 15 for driving the shaft 19 of a cooling tower fan 20, comprises a welded housing formed by a back-plate 30, a curved plate 31, and end-plates 32, 33. A removable head 34 has three lugs 39 welded thereto, to which a further plate 40 is bolted and dowelled, and a channelled section plate 37 is welded to plate 32. The input shaft 17 of unit 15 is keyed to a flexible coupling driven by, e.g. an electric motor, and a pinion 55, on the shaft meshes with a gear 57 on an intermediate shaft 58. A pinion 62 on shaft 58 meshes with a gear 63 on the output shaft 19 which carries fan 20. Specification 706,155 is referred to.
Patent GB-1452375-A (GB)
Title: Method for increasing crop yields
IPC: A01N43/66
Filed: 1974-04-04
Abstract: 1452375 Method for increasing crop yields E I DU PONT DE NEMOURS & CO 4 April 1974 [5 April 1973 12 Nov 1973 28 Feb 1974] 14999/74 Addition to 1408601 Heading C1B The yield of crops is increased by applying to the crop plant at a time that will result in the stimulation of inflorescence development and in an amount which is effective to increase inflorescence or the number of seeds for inflorescence without causing substantial foliar burn, chlorosis or necrosis, a compound of formula wherein R 1  is C 1 -C 3  straight chain alkyl, C 3 -C 8  branced chain alkyl, C 3 -C 8  cycloalkyl, C 4 -C 7  cycloalkylalkyl, C 3 -C 4  alkenyl, C 3 -C 4  alkynyl, benzyl or wherein Y is H, halogen, C 1 -C 4  alkyl, nitro, C 1 -C 4  alkyl thio, C 1 -C 4  alkoxy, cyano or -CF 3 ; Z is H, halogen, CH 3 , C 2 H 5 , nitro, -SCH 3  or -OCH 3 ; Q is H, halogen or CH 3 ; R 2  is H, C 1 -C 4  alkyl, a group where A is C 1 -C 3  alkyl, C 1 -C 4  alkylthio or alkoxy or a Li, Na, K, Ca, Mg, Ba cation or wherein R 5 , R 6  and R 7  are H, C 1 -C 4  alkyl, C 2 -C 4  hydroxyalkyl; R 8  is H, C 1 -C 12  alkyl or benzyl; or R 5  and R 6  together form a ring, where n is 4 to 6 and R 7  and R 8  are H; R 3  is SR 4  or OR 4 , where when R 1  is phenyl or substituted phenyl, R 4  is CH 3  or C 2 H 5  and otherwise R 4  is C 1 -C 6  alkyl, C 3 -C 6  cycloalkyl, C 3 -C 4  alkenyl, C 3 -C 4  alkynyl or benzyl; and X 1  and X 2  are O or S. Compounds of Formula I which may be used include 3-(4-chlorophenyl)- 6-methoxy-s-triazine-2,4(1H,3H)-dione; 3-(2,4- dichlorophenyl) - 6 - methoxy - s - triazine - 2,4- (1H,3H)-dione, 3-(2-methylphenyl)-6-methoxy- 2,4-(1H,3H)-dione, or salts thereof. The crops whose yields may be increased may be maize, wheat, rye, rice, barley, oats, sorghum, soy beans and dry beans. The compounds of Formula I may be applied in the form of compositions with carriers and surface active agents, as wettable powders, dusts, aqueous or oil suspensions or solutions.
Patent GB-529451-A (GB)
Title: Method and means for cutting off tube ends
IPC: B23D21/14
Filed: 1939-05-19
Abstract: 529,451. Shearing. HATEBUR, F. B. May 19, 1939, No. 15028. Convention date, June 1, 1938. [Class 83 (iv)] In a machine for shearing tubing, feed rollers 2, 3 advance on tube 1 through an apertured cutter 6 in a stationary member to a stop member 5. Internal mandrels 4, 7, meeting at the plane of shear support the inside of the tube. A slide 8 carrying a semi-circular cutter 9 is moved in the direction of the arrow to sever the tube which is carried to the dotted position and ejected by the upward movement of the member 5. The mandrel 4 may be supported by a member 10 and the mandrels may be aligned by an electromagnetic device on the mandrel 7.