baber/WOPTO huggingface dataset:
Patent GB-116339-A (GB)
Title: Improvements in Combined Variable Speed Gear and Brake Mechanism for Velocipedes.
Inventor: HARRISON WILLIAM EDWIN
IPC: B62M11/14
Filed: 1917-06-06
Abstract: 116,339. Harrison, W. E. June 6, 1917. Back-pedalling brake and free-wheel arrangements.-A three-speed single-train epicyclic gear, which is fitted with a sliding clutch member or is itself slidable and is used in combination with a back-pedalling brake, is provided on the planet cage b with reversed pawls j, k for driving the hub f and for applying the brake, one of the pawls being bodily movable towards and against the other pawl for the purpose of holding the brakeoperating pawl l;: out of action on all speeds when the machine is being wheeled backwards. The gear ring g is the driven member for one speed, and the planet cage the driven member for the two other speeds. As shown in Fig. 1, the gear is controlled by a sliding clutch member o, which turns with the driving-sleeve h. The sun-pinion c is fixed and the gear ring is fitted with clutch dogs g<3> and with a driving-pawl n. For the low speed, the member o couples the sleeve h to the gear ring and tilts the pawl n out of action, the hub being driven by the pawl j. For the norma! speed or direct drive, the pawl n is still tilted by the clutch member, but the sleeve h is coupled to projections b<2> on the planet .pinion studs b<1>. Further movement of the clutch member to the left causes it to clear the pawl n and the hub is then driven at high speed through this pawl Under the action of a spring j<2>, the pawl j normally occupies the front end of the slots b* in the planet cage, and the pawl k is then pressed by its spring k<2> into engagement with the brake ring l. When, however, the pawl j is effecting the drive, and also when the machine is being wheeled backwards, the pawl j occupies the rear end of the slots and in this position the brakeoperating pawl is held out of action as shown in Fig. 15. The pawl n is similarly mounted in slots g<1>, so that, when the machine is wheeled backwards on high speed, the pawl j can act upon the pawl k before the pawl n can affect the planet cage. In the form of the gear in which the planet cage and gear ring are slidable, the sleeve h has clutch dogs to co-operate with similar dogs on the gear ring and on the planet-pinion studs, the pawl n moving out from, or into, engagement with a narrow ring of ratchet teeth in the hub. According to the Provisional Specification, (1) the reversed pawls in the planet cage have a limited movement in their pockets and are adapted to bear against each other when the hub is rotated baclw-ards ; (2) roller or ball clutches may be used instead of pawls; and (3) the sun-pinion may be arranged to be clutched to a rotating part.
Patent GB-255375-A (GB)
Title: Improvements relating to the mixing of pulverulent materials
IPC: B01F33/40
Filed: 1926-03-24
Abstract: 255,375. Pontoppidan, C. March 24, 1926. Stationary mixers with reciprocating or rotary stirrers, or cir. culating devices; pulverulent material, facilitating mixing of by gas currents.- Pulverulent material is mixed by stirring in a container, the adhesion between the particles being lessened and the resistance to stirring reduced by passing a current of air or other gas through the mate rial. In the form shown, the container 19 is fitted with a central fixed tube through which the material is circulated by means of stirring arms 10. Compressed gas is supplied through the lowest arms 10<1> and escapes through a pipe 16. The material may be circulated through a container fitted with stirring arms &c. to and from a second container. In other forms, the apparatus comprises rotating or horizontally-reciprocating arms arranged in a container fitted with means for supplying compressed gas. Air, hydrogen, or carbon monoxide may be used, and the current of gas may be produced by suction from the top of the container.
Patent GB-414457-A (GB)
Title: Improvements in and relating to electric discharge apparatus
IPC: H02M1/04
Filed: 1933-03-17
Abstract: 414,457. Converting. LEHMANN, W., 52, Westfalischestrasse, Halensee, Berlin. March 17, 1933, No. 8141. Convention date, March 26, 1932. [Class 38 (ii).] In a discharge device comprising a blocking electrode which is constantly negatively charged with respect to the cathode or the gas filling, the blocking action of the electrode is suspended at any predetermined instant by inundating the electrode with positive ions to reduce the blocking field to a magnitude at which the discharge will be initiated, the said discharge continuing as an unsupported discharge. The device may have an incandescent or a mercury cathode. A mercuryvapour rectifier, inverter &c. is provided with a grid 5, Fig. 2, which is negatively biassed with respect to the cathode by a battery 7 connected thereto through a resistance 8. The positive ions are generated in the neighbourhood of the grid by a high-frequency coil 13, which is located internally or externally of the device, and is connected through a switch to a generator 15. The switch may consist of an insulating disc 20 which is driven by a synchronous motor 24 and contains a contact 21 adapted to complete the high-frequency circuit by connecting together contacts 27, 28 mounted on an adjustably pivoted arm 25. The coil may be replaced by internal or external semi-cylindrical electrodes. In a modification, the electrode 5 is not connected to a source of negative potential, but is externally or internally connected to the cathode either directly or through a resistance. In a further modification, a thin wire electrode 41, Fig. 6, which passes through the electrode 5 is used for generating the positive ions and is energized through a phase shifter or by a transformer 45, the secondary of which is in series with a battery 46 having variable tappings. In another modification, the ions are generated by radiating the electrode, or the gas in the neighbourhood thereof, with R÷ntgen or cathode rays, or with ultra-violet light, or by the introduction of metastable atoms, formed by radiating the gas with light.
Patent GB-126170-A (GB)
Title: Improvements in and relating to Reciprocating Feed Mechanism for Heel Compressing and other Machines.
Inventor: POCHIN FRANK HOWARD
IPC: A43D83/00
Filed: 1918-05-15
Abstract: 126,170. Pochin, F. H., and Pochin, H. S. May 15, 1918. Pusher feeds for single sheets; sheet-separators. -A safety device for a reciprocating feed mechanism, such as is used in boot and shoe heel-compressing machines, is arranged so that when the feed slide is automatically disconnected, as is usual on meeting an obstruction, the slide will be moved to ensure that neither the slide nor the work will be in the direct path of any part of the machine which continues in motion. A rod A connected to the feed slide passes through an adjustable sleeve B and has secured to its end a cvlimler D housing a compression spring E. The sleeve B is provided with a groove b adapted to be engaged by a spring-pressed plunger J, located in a barrel H, forming part of a short cylinder F, which has an easy sliding fit with the sleeve B, and is connected by a spindle T to a suitably moving part of the machine. The cylinder F is connected by links P to a cross-bar p to which is secured a rod R; this rod extends into the cylinder D and carries a plug r to form a bearing for the spring E. When the parts are assembled the spring E is compressed, and the plunger J is engaged with the groove b. If an obstruction is met as the parts move from left to right the plunger J yields to disconnect the parts, whereupon the spring E expands and returns the feed slide to starting position. If an obstruction is met on the return journey the parts are similarly disconnected and the feed slide moves further to compress the spring E. A friction device V may be provided to control the spring plunger J.
Patent GB-558059-A (GB)
Title: Improvements in or relating to pulverised fuel burners
IPC: F23L17/00
Filed: 1942-06-15
Abstract: 558,059. Pneumatic conveyers. BABCOCK & WILCOX, Ltd. June 15, 1942, No. 8165. Convention date, Sept. 30, 1941. [Class 78 (i)] [Also in Group XI] Pulverized fuel and carrier air are supplied through conduits having a terminal section 25 of rectangular cross-section to flow-division boxes or riffles 26 mounted on furnace wind box 15, the slots 28 of the riffle being connected to grouped tubular discharge members 29 of oval cross-section. Each group of four members 29 has its discharge tips arranged in line above tapering heat-resistant protectors 33 carried by alternate inclined fluid heating tubes 14 extending across a rectangular burner port 12 in the inclined roof of the furnace chamber 10. The intervening tubes 14 have arcuate protectors 34 on their upper sides. The members 29 are held in position by notched plates 35 on the protectors 33 and are spaced by bars 31. The windbox 15 may be divided by partitions 18 into chambers each having its own damper-controlled air inlet 19, observation door 22 and fuel igniter 23. To prevent segregation of the pulverized fuel and air mixture it is supplied through a vertical supply pipe 37 of circular cross-section connected by a bend 39 of rectangular cross-section to a straight section 41 of circular cross-section leading to the terminal section 25. The dimensions of the various sections where D is the diameter of the section 41 are indicated in Figs. 1 and 3. The terminal section 25 should have a minimum developed length of 1.88 (3N-1.56D) where N is the number of members 29. Holes for lancing tips are provided in boxes 36 on the section 35 in alignment with the members 29. In another construction in which the terminal section of the supply conduit is elongated in a direction parallel to the tubes 14 the slots 53, Fig. 10, between the riffle bars are connected to groups of tubular discharge members 55a ... 55d each group being spaced above a fluid heating tube 14. In a third construction shown in Fig. 11 groups of tubular discharge members 70 of circular cross-section leading from the riffle 26 have flattened ends 71 spaced along the tubes 14.
Patent GB-582807-A (GB)
Title: Improvements in or relating to synthetic resin moulding compositions and articles made therefrom
IPC: C08G8/00
Filed: 1944-05-01
Abstract: A thermosetting moulding powder consists of a rapid thermosetting synthetic urea or phenol formaldehyde resin and a fibre-forming polyamide, and is preferably produced by mixing the ingredients on at least one pair of mixing rolls, the latter operating at differing speeds and one of said rolls being maintained at 80-150 DEG  C., the other being chilled, so that the mixing takes place at temperatures of the mixed material below the thermosetting temperature thereof, the product being then sheeted off, cooled and ground.  A potentially rapid thermosetting resin is defined as one which will cure in less than five minutes when moulded as a finished moulding powder to a thickness of 1/8 " at 1/4 to 3 tons per square inch pressure and at 140-180 DEG  C.  Comparative figures are given for the properties of moulding powders consisting of a phenolic resin mixed with wood-flour, ground cotton, acetate rayon, mica or polyamide in the proportions 1 : 1, 1 : 1, 1 : 1, 2 : 1 and 3 : 2 respectively, and any of these fillers other than the polyamide may be used with the polyamide, e.g. for the manufacture of articles such as snap lids or switch parts.  Stearic acid, water or dibutyl phthalate may be added during the mixing, and the polyamide may be in the form of waste fibres.
Patent GB-244973-A (GB)
Title: Improvements in or relating to cement compositions for making artificial stone and the treatment of castings made therefrom
IPC: C04B24/14
Filed: 1925-03-27
Abstract: 244,973. Dufton, W. J. S., Obank, T., Obank, W. J., and Obank, L. S., (trading as Dufbank Tile Co.). March 27, 1925. Cements, Portland, treating after manufacture. -Cement or cement clinker is ground dry with casein, adbumen, or protein, and oils, fats, or argillaceous earths containing sebacic or fatty acid are subsequently added, with or without sulphur. According to an example, 500 grammes of cement are mixed with magnesite, powdered glass, or sand, and then mixed with 10 grammes of casein and 3 cubic centimetres of polymerized palm oil or linseed oil, with or without 20 grammes of sulphur. Castings made from the mixture may be treated with an emulsion of paraffin wax in soap solution.
Patent GB-312426-A (GB)
Title: Hygienic sanitary towel protector
IPC: A61F13/53
Filed: 1928-03-19
Abstract: 312,426. Ford, H. E., and Wilson, W. M. C. March 19, 1928. Catamenial appliances. - A protector for sanitary towel comprises a sheet A of waterproof material having shouldered extensions B, C each provided with a pair of circular holes D through one of which a loop at each end of the towel is passed.
Patent GB-317770-A (GB)
Title: Improvements in the manufacture of etherified polyhydric alcohols and derivatives thereof
IPC: C07C43/10
Filed: 1928-03-19
Abstract: 317,770. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 19, 1928. Lubricants for machinery.-Hydroxyalkyl or hydroxaryl mixed ethers, derived from polyhydric alcohols containing more than two carbon atoms in the molecule, or from their derivatives containing at least two free hydroxyl groups, by the action of alkylene or arylene oxides or halogen hydrins, are used as lubricants for machinery.
Patent GB-1375350-A (GB)
IPC: F16D3/205
Filed: 1973-02-20
Abstract: 1375350 Universal joints GLAENZER SPICER 20 Feb 1973 [14 March 1972] 8295/73 Heading F2U  For a universal joint comprising rollers 4 on three fingers 5 in a cup 21 radiating from a central part 6, the rollers being located between the prongs of a fork 1; a biasing assembly comprises a retaining clip 17 with three arms 18 to grip in recesses in the prongs (e.g. by each arm having a neck adjacent its end), and at least one aperture, through which passes a toothed end 15, 29 of a member 13, 37 with a part-spherical cavity to engage a mating surface 8 on the part 6, and with recesses 14 to align with the fingers 5, there being a spring 20 to urge the member 13, 37 toward the surface 8, the or each tooth end 15, 19 and its corresponding aperture being so shaped that if the spring 20 is compressed and the member 13, 37 rotated relative to the clip 31 the spring 20 is held in a retracted position. The member 13, 37 may have a central toothed end 29 and/or a symmetrical array of three toothed ends. The retraction of the spring 20 facilitates assembly, and it is released by moving the joint to the Fig. 9, position when the fingers 5 act as cams on the recesses 14.
Patent GB-1365643-A (GB)
Title: Process for the production of hydroquinone
IPC: C25B3/02
Filed: 1972-02-23
Abstract: 1365643 Hydroquinone UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF AG 23 Feb 1972 [24 Feb 1971] 8332/72 Heading C2C A process for the production of hydroquinone by the electrochemical oxidation of benzene to quinone and the electrochemical reduction of quinone to hydroquinone comprises passing a finely dispersed recycle stream of benzene, dilute sulphuric acid and quinone, the quinone content of which is no higher than 2% related to the benzene through the anode compartment of an electrolysis cell at a speed sufficient to produce turbulence and passing a finely dispersed recycle stream of benzene dilute sulphuric acid and hydroquinone, substantially free of quinone through the cathode compartment at a speed sufficient to produce turbulence, adding fresh benzene to the anode recycle stream before it is introduced into the anode compartment, removing a corresponding proportion of the anode recycle stream after the anode compartment, separating the sulphuric acid from this component stream and returning it to the anode recycle stream, adding the residual benzenequinone mixture containing no more than about 2% of quinone to the cathode recycle stream before it is introduced into the cathode compartment, removing a corresponding proportion of the cathode recycle stream after the cathode compartment, separating the benzene from this component stream and returning it to the anode recycle stream, separating the hydroquinone from the residual hydroquinone sulphuric acid mixture and returning the sulphuric acid to the cathode recycle stream before it is introduced into the cathode compartment. The process is described with reference to a flow chart (not shown).
Patent GB-161934-A (GB)
Title: Improvements in and relating to screw fans
IPC: F04D29/54
Filed: 1921-03-18
Abstract: 161,934. Westinghouse Electric & Manufacturing Co., (Assignees of Schmidt, H. F.). April 16, 1920, [Convention date]. Centrifugal and screw fans and pumps.-A blower has a casing 6 which converges towards the fan 7 and then diverges on the discharge side 25; the casing supports a conical housing 12 for the bearings 10, 11, of the shaft 8 and forms with the casing an annular converging inlet passage. The blower is driven by a turbine 9 controlled by a valve 16 which may be operated manually, or automatically by a governor 17. A thrust bearing 18 is located close to the shaft bearing 10 and acts as a pump to supply oil to the bearings 10, 11. The oil is conveyed to the bearing 18 from the casing 12 which forms the reservoir by a ring oiler 19. An oil indicator 21 is provided. The hub 22 of the fan has a diameter approximately equal to that of the inner end of the housing 12, and the discharge side of the casing has a stationary cone 23 connected by vanes 24 to the outer wall. A pipe 27 connects the discharge pressure to small annular chambers 26, 28 at the side of the bearings 11, 10 to prevent oil from being drawn out of the bearings along the shaft 8. A vent 29 ensures the interior of the housing 12 being kept at atmospheric pressure. The struts 13 connecting the housing 12 and casing 6 are stream-lined. The upper half of the casing is removable to permit the inspecticn of bearings &c. In the modification shown in Fig. 3, the fan 33 is supported at the end of the conical member 34 and is driven by the turbine 35 through reduction gearing 36 placed within the member 34. In another modification, an electric motor drives the fan through gearing to step up the speed.
Patent GB-276265-A (GB)
Title: Improvements in or relating to drilling machines
IPC: B23B45/06
Filed: 1927-03-28
Abstract: 276,265. Bender, W. March 28, 1927. Drilling-machines. - A portable electricallydriven drilling machine, which may be used for grinding and polishing, is provided with two spindles perpendicular to each other, and operatively connected by bevel gears, either spindle being adapted to receive a tool or a hand-driving crank. The machine comprises a casing 10, with a cover 11, and a built-in electric motor 12 whose shaft 13 carries a pinion 15 engaging a gear 16 secured to the boss 20 of a bevel pinion 19 gearing with a bevel wheel 21. The wheels 16, 21 are secured to spindles 17, 22 respectively, each spindle having a tapered socket for receiving a tool 23 or a hand crank 25 alternatively. The motor shaft is extended through the cover at 14 to receive a flexible-shaft for driving a grinding, polishing, or like tool. Sockets are provided on the casing and cover to receive handles 28, 31 respectively, which may serve as a means of support on a drill-stand, the handle 31 being hollow to allow a fan 35 to draw air into the casing for cooling the motor. A motor switch 37 is placed where it can be operated by the hand which grasps the handle 28.
Patent GB-307890-A (GB)
Title: Improvements relating to the production of nitroso-diazo solutions
Filed: 1929-03-15
Abstract: 307,890. I. G. Farbenindustrie Akt.- Ges. March 15, 1928, [Convention date]. Nitroso-diazo solutions of unsulphonated p-aminodiphenylamine compounds for producing dyestuffs on the fibre with 2 : 3-oxynaphthoic acid arylides are made by dissolving a solid diazo-preparation of the p-aminodiphenylamine in water and adding an alkali nitrite or by treating with water or acid a mixture of the solid diazo preparation with dry alkali nitrite. A substance adapted to liberate nitrous acid from the nitrite may be added to the solid mixture when the nitroso-diazo solution is formed by adding water. A solid salt capable of binding water may also be added. The following examples are specified. (1) A solution of the acid diazonium sulphate of N-nitroso-p-aminodiphenylamine is made by adding sodium nitrite to an aqueous solution of the acid diazonium sulphate of p-aminodiphenylamine. (2) The dry zinc chloride double salt of diphenylamine-4- diazonium chloride is mixed with dehydrated sodium sulphate and sodium nitrite and the N- nitroso-diazo solution formed by adding acid. (3) To the mixture in example 2 anhydrous oxalic acid is added and the N-nitroso-diazo solution obtained by adding water. (4) The dry diazonium acid sulphate of 4<1>-methoxy-4-aminodiphenylamine is mixed with dehydrated sodium sulphate and sodium nitrite. By dissolving in water the N-nitroso-diazo solution is obtained. (5) 4<1>- Methoxydiphenylamine - 4 - diazoniumbenzenesulphonate is mixed with dehydrated sodium sulphate, sodium nitrite and sodium bisulphate and the N-nitroso-diazo solution obtained by adding water. Specification 313,865 is referred to.
Patent GB-177982-A (GB)
Title: An improved device for automatically lubricating tram axles and the like
IPC: B61F17/26
Filed: 1921-03-19
Abstract: 177,982. Jones, A. J. M. March 19, 1921. Force-feed lubricators.-Oil is introduced into the wheel hubs of trams or the like by a pump operated solely by contact of the plunger E with the caps of passing wheels and constrained by links to move in a circular path while always remaining at right-angles to the direction of motion of the vehicle. The links are pivoted at D on the tank, and the pump-barrel B is pulled back into position by a spring J.
Patent GB-1043493-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B9/02
Filed: 1965-03-01
Abstract: 1,043,493. Shelf brackets. UNITED CARR Inc. March 1, 1965 [March 2, 1964], No. 8639/65. Heading A4B. [Also in Divisions E1 and F2] A fastener, Fig. 2, for attaching a member to an apertured panel comprises a base 1, spring fingers 2 sheared and bent from the base so as to have anchor portions extending generally in parallel and to one side of the base and leave therebetween an aperture 4 in the base, one of the fingers having intermediate its length a looped portion 6 projecting from the opposite side of the base to increase the flexibility of the anchor portion of said one finger, the anchor portions of the two fingers being adapted to resiliently engage opposite walls of the aperture in the panel to anchor the fastener thereto and there being provided means on the base for receiving the member and securing it thereto. In one embodiment the fingers 2 have lips 5 which in use dig into the walls of an aperture 9 in a panel 8, Fig. 5. As described the fastener is used to secure a shelf support to the inner wall of a refrigerator a portion 13 of the support being passed through the apertures 4 and 9 and secured by legs 3 bent out of the base 1. The apertures 4 and 9 are closed by a sealer 7 covering one surface of the fastener. In a second embodiment the legs 3 are absent and a reversely bent portion of the base 1 is apertured to receive a screw.