baber/WOPTO huggingface dataset:
Patent GB-309773-A (GB)
Title: Improvements in gear shifters
Filed: 1928-05-30
Abstract: 309,773. Jackson, L. Mellersh-, (Craig, A. M.). May 30, 1928. Controlling variable-speed gearing. -In pneumatic gear-shifting devices for automobile variable-speed gearing, the shifter-rods 55, 65, engaging the third and second speeds and the first speed and reverse, respectively at the ends of their travel, carry studs 54, 64 connected by linkage to the pistons 34 of pairs of pneumatic cylinders 12, 13 and 10, 11, respectively, on opposite sides af and secured to the gear casing 14. The rods 55, 65 are locked in their operative and neutral positions by a spring-pressed catch 97, which is moved for release by a lever 106 connected, for example, to the clutch pedal. Under the control of a manually operated valve, a pair of cylinders are connected simultaneously to suction means, such as the suction manifold of the engine, air under atmospheric or higher pressure being at the same time admitted to other parts of the cylinders to move the pistons and change the gear. The cylinders, all of which are similar, are each divided into two parts by a partition 17, pistons 28, 41 sliding therein being carried respectively by interengaging piston rods 34, 39. 'The spaces 27, 49 of each of a pair of cylinders 12, 13 are both interconnected with the space 26 of the other by pipes 69, 90, respectively, which are connected by pipes 70, 91 to second and third speed ports 71, 74, Fig. 6, in the base of a casing 72 receiving a rotary valve 78 controlled manually by rods 85. Pipes similarly connect the cylinders 10, 11 to first speed and reverse ports 75, 76. A port 77 is connected to the manifold and the ports 89 to the atmosphere. A valve chamber 86, 87 is adapted to connect any one of the ports 74, 71, 75, 76 to the manifold, the other ports being at the same time connected bv the chamber 88 to the air. The piston rods 34 are connected by bell-crank levers 50 to the shifter rods 55, 65, so that each pair of cylinders acts together to move its corresponding shifter-rod, return to neutral upon release of the suction being effected by one or other of the springs 48. Compressed air or other fluid may be substituted for the air at atmospheric pressure.
Patent GB-861271-A (GB)
Title: Improvements in the preparation of perfluoro-olefines
IPC: C07C17/363
Filed: 1959-05-08
Abstract: A perfluorolefine is obtained by passing through a hot zone maintained at a temperature of 400 DEG  C. to 650 DEG  C. an aliphatic perfluoromono- or di-carboxylic acid or an aliphatic omega hydroperfluorocarboxylic acid, said acid containing at least 3 carbon atoms in the molecule, in vaporized form, in the presence of an excess by volume of an inert gaseous diluent and recovering the perfluorinated olefin.  The perfluorocarboxylic acid is preferably one having the general formula F-CnF2nCOOH, n being an integer from 2 to 11 the resultant perfluoroolefin being of the formula F-Cn-2F2(n-2) CF=CF2.  Specified gaseous diluents are nitrogen and carbon dioxide.  In a preferred method of operation, a substantially anhydrous mixture of the acid and diluent is passed through a tube heated to the reaction temperature, preferably at hot zone contact times not exceeding five seconds, the reaction products are condensed in a cold trap and the perfluoroolefin separated by distillation. The tube may be made of stainless steel or steel lined with silver, platinum or other corrosion resistant metal and may, if desired, be filled with a refractory oxide.  Atmospheric pressure or a higher or lower pressure may be used, but the pressure should not exceed the critical pressure of the acid at reaction temperature.  Examples are given for the production of tetrafluoroethylene from perfluoropropionic acid, perfluoropropylene from perfluorobutyric acid, and perfluoroheptene-1 from perfluorooctanoic acid.  Other perfluoroacids specified are perfluoro-isobutyric, -pentanoic, -heptanoic and -decanoic acids, perfluorosebacic acid which yields perfluorooctadiene 1,7,4-hydrohexafluorobutanoic acid which yields 3-hydropentafluoro propene-1 and 7-hydrododecafluoroheptanoic acid which yields 6-hydroundecafluorohexene-1.  The products can be used to form perfluorinated polymers.
Patent GB-554015-A (GB)
Title: Improvements in or relating to the coating of granular materials with powder
IPC: A01C1/08
Filed: 1941-12-10
Abstract: 554,015. Treating seeds. GIRLING, A., and SCOTTISH AGRICULTURAL INDUSTRIES, Ltd. Dec. 10, 1941, No. 15910. [Class 58] [Also in Groups II and XVIII] The machine described in Specification 437,036 for coating granular materials with definite quantites of powders, particularly dressing seeds with chemicals, is improved by feeding the granular material by means of a weighing apparatus which stops the feed of powder when the supply of grain fails, and by the provision of duplicate powder suppliers, one of which may be recharged while the other is working. The grain is delivered from a hopper 1 through a rotating brush valve 3 to one of three compartments in a drum 7 normally raised by counter-balances 12 on levers pivoted at 11. The ends of the drums are shaped to co-operate with rollers 36. When sufficient grain has been fed to depress the drum, a spur wheel thereon meshes with a pinion 35 and the drum rotates counter-clockwise through one-third of a revolution, the grain falling to the mixer 38 and the drum rising when the next pair'of recesses reaches the rollers 36. As the drum rotates a flap 14 sweeps over the end of a cylinder 15 and delivers powder to the mixer. The piston 16 is advanced a predetermined distance for each delivery of grain and the drive is jammed when the piston reaches the end of its stroke as described in the prior Specification. A pair of pistons and cylinders are provided one of which can be swung upwardly for re-charging while the other is supplying powder to the mixer.
Patent GB-147339-A (GB)
Title: Improvements in spring-driven mechanism
IPC: G04B1/12
Filed: 1919-12-16
Abstract: 147,339. Redington, T. F., and Collins, H. B. Dec. 16, 1919. Spring power-storing mechanism.-A drum in halves A<1>, A<2> rigidly joined together by plates C contains two springs one wound on a stationary axle E and the other oppositely wound on the co-axial winding and driving arbor F which carries the fast ratchet-wheel N under the pawl M on the loose driving-wheel H.
Patent GB-277754-A (GB)
Title: Improvements in or relating to thermionic discharge tubes
IPC: H01J1/20
Filed: 1926-06-25
Abstract: 277,754. M-O Valve Co., Ltd., and Stopford, C., W. June 25, 1926. Vacuum tubes. - The cathode is heated by a helically-coiled carbon filament. As shows, the cathode 13 consists of a thimble or open cylinder, preferably coated with oxide. The filament 15 is wound back on itself so as to be non-inductive, the middle point being secured to a hook on a support 14, which is insulated by a silica tube 18 and has a ring 19, which, during assembly. acts as a guard to protect the filament from the cathode. A cellulose filament may be wound on a slightly-tapered cyclindrical former with a double helical thread and carbonized subsequently. The filament is secured to its supports by a solder consisting of a mixture in powdered form of carbon, a metal such as molybdenum, tungsten, or tantalum having a higher melting point than the normal temperature of the joint, and a metal such as copper having a lower melting point than that temperature. The metals used should dissolve carbon to a small extent only. Preferably a mixture containing 70 per cent by weight of molybdenum, 25 per cent of copper and 5 per cent of carbon is formed into a paste with water containing 10 per cent of glycerine, and the cemented joints are heated in a tube furnace to a temperature of 1150‹ C. in the presence of hydrogen. The electrodes are inclined as shown so as to avoid heating of the pinch. The cathode support is connected with a terminal 21 and the other supports with the usual pins. An uncoated part of the cathode, preferably separated by an insulating gap from the main body of the cathode, extends below thegrid so as to shield the anode from electron discharge from the filament.
Patent GB-515231-A (GB)
Title: Improvements in or relating to pressure control systems for fuel injection pumps
IPC: F02M59/46
Filed: 1938-05-28
Abstract: 515,231. Fuel-injection pumps. L'ORANGE, R. May 28, 1938, No. 16011. [Class 102 (i)] An unloaded or lightly loaded valve 1 is arranged to co-operate with two seats 2, 4 so that it is lifted from seat 2 and engages seat 4 before the main delivery valve 3 of a fuel injection pump opens, to cause a preliminary injection. The stem 1c may be guided as shown or in the body of valve 3. Fig. 3 shows an arrangement wherein the seat 2 is arranged within the valve 3 and the seat 4 is on a member 7 which guides the valve 1 and is held in position by the spring 6. In a modification of this last construction, the valve may be in the form of a ball.
Patent GB-770134-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D25/02
Filed: 1955-06-03
Abstract: 770,134. Refrigerators. GENERAL. ELECTRIC CO. June 3, 1955 [June 3, 1954], No. 16034/55. Class 29. Food receptacles 14, 15 for refrigerators are carried ori a supporting frame 12, 13, rotatably mounted on a vertical post 8 fixed to the floor of the food storage compartment, and covered by a shelf 9 preferably fixed to the post 8 and having a flange 27 depending from its side and rear edges overlying the edges of the food receptacles and acting as a moisture conserver. The supporting frame is in the shape of a sector of a circle and carries two receptacles 14, 15, each having a straight front wall 16, curved side wall 17 and an inner wall 18 with a concaveportion 19 for engagement with the post 8. The side and inner walls are higher than the front wall and slope down towards it as at 20 (Fig. 1). Secured to the supporting frame is a front cover 28 with a sloping top edge, low enough to move under the shelf 9 within the flange 27, overlying the portions 20 of the receptacles .14, 15, and which may be provided with a grip or handle. Access to the receptacles is obtained by rotating the supporting frame by means of the cover 28 so that the receptacles are swung out from under the shelf 9.
Patent GB-145024-A (GB)
Title: Improvements in manifolding machines
IPC: B41L39/08
Filed: 1920-06-14
Abstract: 145,024. Mock, N. Nov. 14, 1916, [Convention date]. Tripping-arrangements.-In a rotary duplicating machine, means are provided to hold the impression roller out of contact with the printing. cylinder on failure of the feed of a sheet, such means being held normally in an inoperative position by a feeler device engaging the sheets. As shown, the impression roller 5 is carried by a bar 10 which, during the normal running of the machine, is vertically reciprocated to carry the roller 5 alternately into and out of contact with the printing-cylinder 1, which is driven by a hand crank 2 and gearing 3, 4. The down stroke of the bar 10 is effected by a cam 9 on the cylinder 1 engaging a roller 11 on the bar 10 and the upstroke by springs 7. When no sheet is being fed, a gravity arm k pivoted on a pin f on the machine frame engages a pin i on the bar 10, as shown in Fig. 1, to hold the bar depressed. A three-armed lever p pivoted on the pin f has one arm l held by a spring n against a pin o on the arm k, so that the arm k and lever p move together, and an arm m is adapted to co-operate with a pivoted pawl h. A feeler arm b pivoted on a pin a has an arm d engaging under the pawl h, and an arm c engaging above the third arm e of the lever p. The sheets are separated from the pile by a member 14 which rotates with the roller 5 and buckles the top sheet. B<1> as shown in Fig. 5, the sheet B<1> then springing over the member 14 into the bite of the roller 5 and cylinder 1. The buckling of the sheet raises the feeler b so that the arm c depresses the arm e to move the arm k out of contact with the pin i and to move the arm m into position to be engaged by the pawl h which is allowed to fall by the depression of the arm d. When the sheet supply fails the feeler b falls, and the pawl h is raised to allow the arm k to reengage with the pin i.
Patent GB-350211-A (GB)
Title: Improvements in gas heated hot water geysers
IPC: F24H9/18
Filed: 1930-05-24
Abstract: 350,211. Burner mountings. EWART, S. and EWART & SON, Ltd., 346, Euston Road, London. May 24, 1930, No. 16072. [Class 75 (i).] In a gas-heated geyser, the gas ring 2 and the gas cock 3 are each independently and detachably secured to a ring 7 secured by screws in an opening in the wall of the base 1. As shown, the ring 2 and cock 3 are formed with spigots 10, 11 engaging in recesses 8, 9 provided with washers 13, 14 respectively. The cock is secured to the ring 7 by two screws 15 and the ring by two screws 17. The ring is supported at the opposite side by a flanged stud 22 engaging a slotted member 23 secured to the base 1. A hinged door is provided on either side of the base 1 for obtaining access to the ring.
Patent GB-1113062-A (GB)
Title: Improvements relating to cold cathode arc chutes
Inventor: CHRISP GEORGE FRANCIS
IPC: H01H9/36
Filed: 1964-04-17
Abstract: 1,113,062. Arc rupturing in switches. A. REYROLLE & CO. Ltd. 16 July, 1965 [17 April, 1964], No. 16081/64. Heading H1N. An arc shoot comprises a pair of insulating walls 18 defining a central tunnel 15 leading into aligned spaces between the legs of a plurality of U-shaped mild steel splitter plates 10 which spaces 14 are closed at their edges by an insulating cowl 30 and discharge downwardly outside the walls 18 into passages 35 which lead to openings (39) at each end of the shoot. Alternate halves of the spaces 14 are blocked by extensions 11 of the insulating cowl 30 so that the spaces discharge alternately to opposite sides of the shoot. The shoot is mounted in an insulating housing 36 made in two parts sealed together by a sealing strip 42 and secured by bolts 43. The housing 36 is mounted in a metal cubicle 47 by lugs 44 and expanded rubber buffers 46. Associated with the shoot are a pair of arc runners 26, (27) connected respectively with a pair of pivotally movable contacts (20, 21). The passages 35 are blocked at the centre of the shoot by a wall 37.
Patent GB-834539-A (GB)
Title: Improvements in or relating to switching devices
Inventor: KILBURN TOM
IPC: H03K3/45
Filed: 1955-06-04
Abstract: 834,539. Non - contact making relays. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 29, 1956 [June 4, 1955], No. 16091/55. Class 40 (9). [Also in Group XXXV] Passage of a particular frequency f between input and output windings of a transformer core is controlled by application to the transformer core of a frequency several times that of frequency #. In Fig. 1 the core 10 links a winding 11 driven from an alternating or pulsating constant current source S1 of 100 kc/s. A winding 12 takes output from the core and may be connected to a writing head of a tape or drum recorder. The amplitude of the output is controlled by the amplitude of a 1 mc/s. signal supplied from oscillator S2 to a winding 13. As the amplitude of the 1 mc/s. signal increases from nothing the output of 100 kc/s. in winding 12 first increases and then falls off; the curve varying with temperature. To obtain increased discrimination the back-to-back arrangement of Fig. 2 may be used to balance out quiescent currents in the opposed output windings 23 and 25, fine adjustment being made with a transformer 27 between input and output circuits and one core only receiving a 1 mc/s. control signal. The output of one transformer, or of a back-to-back pair, may feed the input to another transformer; impedances being connected in the input circuits to obtain constant inputs. The transformers may be grouped into a contact pyramid to gate the output of any one of eight constant current oscillators to a single output under the control of selectors associated with each stage of the pyramid. The cores are preferably of square loop material and the dimensions of one core are set out together with input-output characteristics.
Patent GB-379400-A (GB)
Title: Improvements in jib cranes
IPC: B66C23/10
Filed: 1931-06-04
Abstract: 379,400. Jib cranes ; self-sustaining gear for winding-apparatus. WEDDELL, A. H., Alpha Works, Park Street, Motherwell, Lanarkshire. June 4, 1931, No. 16149. [Classes 78 (iv) and 78 (v).] In level luffing jib cranes of the type in which the tension on the luffing rope under a given load is substantially constant in all positions of the jib, e.g. as in Specifications 207,936 and 256,781, [both in Class 78 (iv), Loading &c.], the hoisting and luffing barrels are connected by co-axial pinions and an automatic one-way friction clutch which permits relative rotation of the pinions to effect independent hoisting of the load but opposes free descent of the load, the purchase of the hoisting and luffing ropes, the diameter of the barrels and the ratios of the gearing by which the clutch is connected to the barrels being such that the torques exerted by the load on the pinions are substantially equal and opposite. As shown, the hoisting barrel B is integral with a spur wheel B<1> gearing with a pinion C which constitutes a nut engaging a thread G on a shaft F, the load torque displacing a flange H, integral with the pinion C, against a ratchet disc J freely mounted on the shaft F and abutting a collar K ; the luffing barrel D is integral with a spur wheel D<1> gearing with a pinion E which is freely mounted on the shaft F and is integral with a member L carrying pawls M engaging the disc J and gearing with a pinion Q on a clutch sleeve R slidable on a hand-operated shaft O. When the sleeve R is locked, as shown, by a fixed bearing W, the shaft F is driven through gears N, P, and rotates the pinion C to raise or lower the load, the luffing barrel being held stationary by the member L engaging the pinion Q. When the sleeve engages the pinion N, pinions C, E are rotated and the jib is luffed with the load moving horizontally. The pawls M prevent rotation of the disc J in the direction to lower the load and the friction torque between the disc and the flange H prevents the load falling when the shaft O is not driven. The pinions C, E may be mounted on separate shafts.
Patent GB-1420300-A (GB)
Title: Liquidcrystal displays
IPC: G09F9/35
Filed: 1974-04-11
Abstract: 1420300 Liquid crystal compositions PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 April 1974 [18 April 1973] 16305/74 Heading C4X [Also in Divisions H3-H5] A liquid crystal composition for use in an electro-optic display device comprises p-ethoxyp<SP>1</SP>-hexyloxy-α-cyano - trans - stilbene (nematic with a dielectric anisotropy of -5À5) containing 2% cholesteryl nonanoate. The nematic material may be substituted by other p,p<SP>1</SP> cyano-trans-stilbenes, and the cholesteryl nonanoate by other cholesteric liquid crystal materials in concentrations up to 10%, or by non-mesomorphic optically active materials such as L-menthol or D-tartaric acid.
Patent GB-1346932-A (GB)
Title: Process for the preparation of polymer compositions
IPC: C08F279/02
Filed: 1971-05-21
Abstract: 1346932 Graft polymer compositions HOOKER CHEMICAL CORP 21 May 1971 [20 July 1970] 16358/71 Headings C3G and C3R A polymer composition is prepared by mixing (A) a graft polymer, obtained by forming an aqueous emulsion containing, as the sole copolymerizable components, (i) a butadiene polymer and (ii) 50 to 90%, based on the total weight of copolymerizable components, of at least one graft monomer, converting the emulsion to a suspension and causing the said components in suspension to react with one another, with (B) a halogen-containing or phosphoruscontaining polyester or a halogenated Diels- Alder adduct of a halocyclopentadiene and styrene. Examples are given in which (a) styrene and acrylonitrile or (b) the said two monomers, methacrylonitrile and ethyl acrylate, are grafted on to polybutadiene. The resulting graft polymer (a) is blended with a chlorendic acid/ethylene glycol polyester, antimony trioxide and stabilizers or with the tetrabrominated Diels-Alder adduct of hexachlorocyclopentadiene and styrene, antimony trioxide, titanium dioxide and stabilizers. Additional polyester resins are described.
Patent GB-728731-A (GB)
Title: Improvements relating to mobile mechanical handling apparatus and the like
Inventor: GABRIEL CELT OWEN
IPC: E02F3/34
Filed: 1950-07-03
Abstract: 728,731. Vehicle driving and steering arrangement. BOYDELL & CO., Ltd., E. Oct. 3, 1951 [July 3, 1950], No. 16583/50. Class 79(2). [Also in Group XXX] A mobile mechanical scoop or shovel comprising a four wheeled chassis with the engine 1 mounted at one end and the scoop or shovel 10 at the other has a robust rectangular frame 2 on which the wheel axles of large diameter tyre wheels 4 are mounted closely, one wheel at each side is directly driven through combined steering clutch and brake mechanism and the other wheel at each side is geared as by chain and sprocket to the driven wheel. The vehicle is steered by applying external brakes 7 to the wheels on one side of the vehicle while driving the wheels on the other
Patent GB-492778-A (GB)
Title: Improvements in and relating to stock regulating apparatus for paper machines
IPC: D21F1/08
Filed: 1937-06-15
Abstract: 492,778. Float - actuated valves. POIRIER, E. June 15, 1937, No. 16640. Convention date, May 12. [Class 135] [Also in Group VIII] Variations in the consistency of a stream of paper-making pulp are rectified by causing the stream to flow under constant head through a container 12, the inlet 15 to which is of such shape and resistance that the level in the container drops or rises as the consistency increases or decreases, and adding water or " white water " to the pulp at 51 immediately preceding. the inlet in accordance with the variations in level in the container. The rate of discharge from the outlet 16 of the container may also be automatically controlled. The controlling means comprises a lever system operated by a float 32 in the container which operates a weighted valve 52 when the consistency exceeds a definite value, and also continuously operates a sliding gate in outlet 16. The effective length of certain levers is variable to control the relationship between the adjusting movements of the valve and the gate. In order to alter the total volume of flow without upsetting the consistency-rectifying device, a curved piece 14 forming one wall of the tortuous inlet 15, and a second gate in the outlet 16 operating at right-angles to the automatically operated gate, may be simultaneously and proportionally moved by turning a single hand wheel 28. The position of the manually-operated gate and the float, and the effective length of one of the lever arms, are indicated on graduated scales. U.S.A. Specification 1,990,501 is referred to.
Patent GB-381614-A (GB)
Title: Improvements applicable to shaving brushes, tooth brushes, polishing brushes, and the like
IPC: A46B11/02
Filed: 1932-01-19
Abstract: 381,614. Reservoir brushes. FAIRON, J. J., 136, Fox Street, Johannesburg, South Africa. Jan. 19, 1932, No. 16662/31. [Class 19.] Reservoir shaving-, tooth-, and like brushes, of the type with cartridge and piston feed, are characterized in that the cartridge 15, Fig. 4, has an external groove 17 to engage a longitudinal rib 12, Fig. 1, in the handle 6 of the brush, and with a corresponding internal rib 16 to engage a groove in a piston 7 operated preferably by a left-handed screw 8 and cap 9.