baber/WOPTO huggingface dataset:
Patent GB-574359-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C14/22
Filed: 1943-05-12
Abstract: 574,359. Rotary pumps. COLBERT, J. H. May 12, 1943, No. 7591. [Class 110 (ii)] An outwardly-sliding vane pump has a stator 22, which is pivoted on the delivery chamber 24, to vary the eccentricity between the stator and rotor 18, and thus using the pump delivery. The delivery pressure acts on a plunger 37, and increase in pressure moves the stator to the left, Fig. 1, against the force of a spring 34 which acts through a rocking lever 11. The pump is supported by a mounting flange 2. The rotor is mounted on a shaft 6 in ball bearings 5, and the whole pump enclosed in a casing 1 having inlet and delivery ports 7, 8. Semi-circular holes 20 in the rotor are drilled at opposite sides of successive radial slots for the vanes 19, so as to give six vents to the right, and six vents to the left. Fluid under pressure thus forces the vanes radially outwards. The stator has side-sealing plates 23 also mounted on the pivot 24. Fluid is delivered through ports 27, 28 to the pivot 24. Each side plate 23 has a segment 29 cut away to provide communication between the inlet 7 and the pumping chamber. Stuffing boxes 30 are provided in the side plates 23. Pressure fluid passes from the delivery 24, through a port 41 and pipe 43 to a servo valve 13 which slides in a boss 12. The valve moves in a ported sleeve and controls the fluid supply to, or leak away from, the plunger 37. A spring counteracts the fluid pressure. To facilitate starting up the pump, the suction and delivery sides are connected by a valve 52, port 54 and passage 55. As the pump speeds up, fluid flowing through a restricted passage acts on the valve to close off the passage 55 by-passing the suction and delivery sides of the pump.
Patent GB-313477-A (GB)
Title: Improvements in fluid hoists
IPC: B60P1/16
Filed: 1928-03-12
Abstract: 313,477. Heil, J. P., Eisenberg, C. G., and Landry, G. March 12, 1928. Tipping wagons.-Hydraulic lifting apparatus especially applicable to tip-wagons comprises a pump 36, Fig. 1, adapted to draw liquid from the upper ends of cylinders 14 through ports 27, Fig. 7. and a passage 32, Fig. 4, and deliver it past a check valve 38<1>, through passages 29, 28, and ports 26 underneath pistons 20. In their upper positions, the pistons cover the ports 27 and their upward movement is stopped. The pistons descend when a bye-pass valve 33 is set to establish connection between the passages 29, 32 through ducts 29<1>, 32<1>. Storage chambers 45 are separated from the cylinders by partitions 14<11> provided with opening 21'; the ports communicate with the chambers through passages 46 provided with check valves 47. A pair of cylinders is pivotally mounted at 16, the cylinders being connected together by the pump manifold, a plate, and an adjustable turnbuckle, the chambers 45 being also connected by a pipe 51. The rods of the pistons are pivotally connected to the central portion of the wagon body 11 pivotally mounted at 12.
Patent GB-609530-A (GB)
Title: Improvements in combs for textile apparatus
IPC: D02H13/16
Filed: 1946-03-12
Abstract: 609,530. Leasing combs. BAINES, R. H., ECCLES, T., and FULTON, S. M. March 12, 1946, No. 7711. [Class 142(iv)] A leasing comb, having alternate long and short dents 8, 9 soldered together at 13, has a detachable top baulk comprising strips 15, 16 clamped on opposite sides of the dents inside the coils of a spacing wire 19. To permit entry of a warp, wing nuts 18 are removed and the baulk dismantled. The coils 19 may be soldered to one of the strips. The bottom baulk comprises strips 10, and a spacing coil 11 soldered to the two strips 7, the strips 7, 10 being fixed to handles 5. A cap 20 encloses the tops of the long dents.
Patent GB-259827-A (GB)
Title: An improved device for corking bottles
IPC: B67B1/04
Filed: 1926-03-19
Abstract: 259,827. Clarke, R. March 19, 1926. Corking.-An apparatus for use in corking bottles by hand com. prises a tubular portion a of ash covered with copper and lined with zinc, and a complementary guiding portion d also of ash, through which a striker g is operated by blow from a maliet. The striker g is made of ash and is provided with a steel thimble h at the point. In operation the part a is placed over the neck of a bottle and a cork is inserted therein. The registering portion d is then superimposed on a and the striker operated therein to drive the cork home.
Patent GB-1001250-A (GB)
Title: Control apparatus for use with electric motors
Inventor: RAYWORTH GEORGE
IPC: H02P7/282
Filed: 1963-02-26
Abstract: 1,001,250. Control of D.C. motors. C.A.V. Ltd. May 21, 1964 [Feb. 26, 1963], No. 7721/63. Heading H2J. A shunt field winding 4 is connected in series with a controlled rectifier 5 which is switched on by pulses derived from a bi-stable trigger circuit comprising transistors 10, 11. The rectifier 5 is switched off by a commutating capacitor 8 associated with a controlled rectifier 6 which receives pulses from the trigger circuit during the intervals between the supply of successive pulses to the rectifier 5. The trigger circuit is controlled by an oscillator comprising uni-junction transistor 22 and capacitor 24, the length of time during which the rectifier 5 is conductive being varied by adjustment of potentiometer 25. The outputs from the trigger circuit are applied to the gates of the controlled rectifiers through emitter follower amplifiers comprising transistors 28, 29.
Patent GB-990596-A (GB)
Title: Preparation of cyclohexylamine cyclohexylsulphamate
Filed: 1963-02-26
Abstract: Cyclohexylamine cyclohexylsulphamate is prepared by reacting dry cyclohexylamine with dry sulphur trioxide vapours in such a manner that at least 10 mol. parts of cyclohexylamine contact 1 mol. part of sulphur trioxide in a zone of turbulence at a temperature at or above 70 DEG  C.  The required ratio of reactants may be obtained by diluting the sulphur trioxide with an inert gas, and the required turbulence may be achieved by bringing the reactants together in a Venturi tube or ejector device.  The product mixture is preferably recirculated and the process is preferably continued until the recirculating phase contains at least 5% by weight of solids.
Patent GB-777763-A (GB)
Title: Improvements in or relating to friction devices such as brakes or clutches
Inventor: MARKUS EUGENE
IPC: F16D69/04
Filed: 1955-03-17
Abstract: 777,763. Brake friction members. BENDIX AVIATION CORPORATION. March 17, 1955 No. 7840/55. Class 103 (1). [Also in Group XXIV] A brake disc particularly for use in an aircraft disc brake comprises an annular steel plate 12 with outwardly extending portions 14 on which friction compacts 16 are mounted. These compacts consist of cup members 18 containing finely divided inorganic friction material compacted together as by sintering. One member has an annular fastener element 28 with a tapered inner peripheral surface 34 while the other has a ring 25 with a tubular extension which engages in the annular element 28. A tapered button 38 fitted into the ring 25 is adapted on the application of pressure to flare the end of the ring outwards into engagement with the tapered surface of the element 28. A single friction compact could be mounted on one side of the plate only.
Patent GB-609419-A (GB)
Title: Tire casing patch
IPC: A24F1/08
Filed: 1946-03-13
Abstract: 609,419. Wheel tyres. GENERAL TIRE & RUBBER CO. March 13, 1946, No. 7885. Convention date, May 7, 1945. [Class 144 (i)] A repair patch for a tyre cover comprises superposed sets of cord fabric plies, each set consisting of a base layer with its cords adapted to extend transversely from bead to bead of the tyre, and two smaller layers with cords crossing one another. and those of the base layer. Fig. 1 shows a developed sectional plan of one form of the finished portion, and Fig. 3 the lay of the plies in the building-up. As shown, the patch comprises three longitudinal cord plies 1, 11, 14 and three pairs 3-4, 12-13, 15-16 with their cords arranged on the bias to one another and those of the plies 1, 11, 14. Each of the bias-cord layers has two diagonallyopposite corners within, and the other corners extending beyond, the longitudinal edges of the underlying strip. The inner and outer layers are faced with rubber 17, 19 and Holland cloth 18, 20.
Patent GB-543422-A (GB)
Title: Improvements in or relating to high-frequency induction furnaces
IPC: H05B6/26
Filed: 1940-05-02
Abstract: 543,422. Electric induction furnaces. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken.). May 2, 1940, No. 7907. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 6, 1940.] [Class 39 (iii)] ]  A high frequency induction furnace for treating materials in vacuo comprises a crucible 1 carried by a support 2 which rests on a stone base 3 on which is carried a hollow copper coil 6 with a vacuum-tight packing 5. An intermediate china ring 7 supports a copper hood 8. Ceramic material 10 is packed around the crucible. The exciting coil 6, which also constitutes the furnace wall, comprises one turn, the ends of which are separated by insulation 11 and connected by a condenser 12. The coil is connected to a multi-electrode discharge tube or a motor generator coupled to a tuned oscillatory circuit. Water is circulated through the hollow space in the coil 6. The coil may be dividedinto two half turns, insulated from one another.
Patent GB-477025-A (GB)
Title: Improvements in or relating to vacuum cleaner nozzles
IPC: A47L9/02
Filed: 1936-03-16
Abstract: 477,025. Vacuum - cleaner nozzles. NUENNKE, C. H. GROTH-. March 16, 1936, No. 7912. Void. Convention date, Aug. 16, 1935. [Class 8 (i)] The nozzle 1 is connected to the outlet pipe 5 by a member 13 to which the pipe is pivotally connected to allow rotation in a vertical plane through a half circle, while the member 13 can be turned horizontally through a complete circle, and may have spring means for retaining it in certain positions.
Patent GB-793892-A (GB)
Title: Device for reducing the vertical component of the magnetic field of the earth and to a magnetic compass provided with such a device
IPC: G01C17/38
Filed: 1956-03-14
Abstract: 793,892. Magnetic compasses. NEDERLANDE ORGANISATIE VOOR TEOGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID HANDEL EN VERKEER. March 14, 1956 [March 16, 1955], No. 7990/56. Class 97(2) In order to reduce the effect of the vertical component of the earth's magnetic field, but not of the horizontal component on the needle 4, the needle is surrounded by a cylinder composed of strips 2 of high magnetic permeability alternating with strips 3 of low magnetic permeability. In another form, the strips 2 are secured, with spaces between, to the outer face of a continuous cylinder of material of low permeability. The ends of the strips may be bent radially inwards at one or both ends of the .cylinder. Specification 658,636 is referred to.
Patent GB-435111-A (GB)
Title: Improvements in and relating to textile printing
IPC: D06P5/12
Filed: 1934-03-14
Abstract: Printing.--White resist effects are obtained in dyeing cellulosic material with such sulphuric esters of leuco vat dyestuffs as have affinity for cotton by applying locally to the material at least one of the following salts, viz. potash alum, aluminium sulphate, aluminium sulphocyanide, chrome alum, iron ammonium alum, potassium ferrocyanide, stannous chloride and stannic oxalate, drying the material, over-printing or padding with the sulphuric ester of the leuco vat dyestuff and developing the colour.  The following examples are specified.  (1) Cotton is printed with an aqueous paste containing British gum and stannous chloride, the printed material is dried, over-printed with an aqueous paste containing Soledon brilliant purple 2R, diethylene glycol, neutral starch tragacanth thickening, ammonium sulphocyanide, sodium chlorate and ammonium vanadate and the over-printed material is dried, steamed for 5--10 minutes, washed and soaped at the boil.  (2) Cotton is printed with an aqueous paste containing British gum and iron ammonium alum, the printed material is dried and overprinted with an aqueous paste containing Soledon jade green, neutral starch tragacanth thickening and sodium nitrite and the overprinted material is dried, passed through dilute sulphuric acid at 60 DEG  C., washed and soaped at the boil; iron stains, if present, are removed by passage through hot dilute oxalic acid.  (3) Cotton is printed with an aqueous paste containing British gum and potash alum, the printed material is dried and padded in an aqueous solution containing Soledon jade green, glycerol, gum tragacanth and sodium nitrite and the padded material is dried, passed through dilute sulphuric acid at 60 DEG  C., washed and soaped at the boil.
Patent GB-416504-A (GB)
Title: Improvements in or relating to railway switch-operating mechanism
IPC: B61L5/02
Filed: 1933-03-17
Abstract: 416,504. Operating railway points. MONARCH DOOR CONTROLLER CO., Ltd., 7, Victoria Street, Westminster, SAMS, J. G. B., Westleys, Wimbish, near Saffron Walden, Essex, and SMITH, G. W., 6, Grosvenor Mansions, Buxton, Derbyshire. March 17, 1933, No. 8083. [Class 104 (i).] The point-operating lever 2 is pivoted at 4 in a vertical slot in a box 1 provided with lugs 5 with which projections 6 on the lever are adapted to engage in either extreme position. The pivot pin 4 passes through a slot 3 in the lever, so that when the points are to be operated, the lever may be lifted to clear the projections 5, and, after being moved to its new position, may be dropped to engage them. The lever may be locked by a pin 10 passing through a hole in the lever and curved slots in the box, and provided with a hole 10<x> for a padlock. In another form, the projections 6 engage slots in the top of the box. The invention may be applied to existing point-lever boxes by bolting thereto a frame fitted with the projections 5.
Patent GB-633103-A (GB)
Title: An improved manufacture of an electricity meter
IPC: G01R11/04
Filed: 1947-03-25
Abstract: 633,103. Instrument and meter casings and support; supply meters. LANDIS & GYR SOC. ANON. March 25, 1947, No. 8148. Convention date, March 26, 1946. [Class 37] As shown, Fig. 2, an electricity supply meter mounting panel 1 is also the meter base plate and is composed of pressed material such as synthetic resin with moulded-in meter supports, terminals and connecting wires. The brackets 3, 4 which support the upper and lower bearings of the driving disc 5 may be independent inserts or projections of a single insert. This is similarly the case in regard to the pairs of studs which secure the voltage and current cores. The support for the brake magnet (not shown) is also an insert. The line and load connecting wires shown dotted 15, 16 are embedded and connected to the current and voltage terminals and to the main terminals 10 which are seated in the moulding as are the fixed parts of screw plug fuses 11. In a modification, Fig. 3, the terminals 10 and fuses 11 (the plugs 12 are shown) are enclosed in a recess in the panel 1. The meter proper is enclosed by a hinged cover 23 which is sealed to the panel 1 and is furnished with a ledge 31 against which abuts a flange 28 on the hinged plate 24 which covers the recess. The hole 29 in the flange 28 is entered by a screw projecting from the panel 1 ; a lead seal on this screw seals the cover 24 and cover 23. In Fig. 3 two of the panel fixing screws 32 are enclosed by the cover 24.
Patent GB-385284-A (GB)
Title: Improvements in or relating to electrothermic switches
IPC: H01H37/46
Filed: 1931-03-17
Abstract: 385,284. Thermal switches. ROZUMEK, E., 1, Am Fenn, Steglitz, Berlin. March 17, 1931, No. 8232. Convention date, June 27, 1930. Void [Published under Sect. 91 of the Acts.] Addition to 385,283. [Class 38 (v).] In a thermal switch of the. hot wire type the wire expansion windings act on the contactlever through the medium of a spring to avoid straining the winding after the contacts are in engagement. A current supply bar 1 has a fixed contact 3 and is joined to and insulated from a second current supply bar 2, the upper end 5 of which serves as a pivot for a lever 6 carrying a contact 4 surrounded by an insulating shield 20. A wire winding 8 is connected at its lower end to the bar 2 and at its upper end to a stirrup 9 having an. adjusting screw 12 which passes loosely through a hole in the lever 6 to engage a stiff leaf spring 10. When the winding 8 contracts on cooling, it moves the lever 6 by means of the spring 10 to force the contacts into engagement against the action of a spring 7. After the contacts have closed, further contraction only serves to flex the spring 10, thus avoiding excessive strain on the winding 8. In a modification, a forked contactlever is used and the leaf spring 10 is replaced by a helical compression spring. The switch is mounted in an evacuated tube containing an annular condenser the spring plates of which may serve to hold the switch centrally.
Patent GB-689005-A (GB)
Title: Improvements in or relating to a continuous cyclic hydroforming process
IPC: C10G35/14
Filed: 1951-04-10
Abstract: In a continuous cyclic hydroforming process for improving the octane rating of hydrocarbons in the presence of recycled hydrogen-containing gaseous products and a turbulent dense phase fluidized catalyst which is withdrawn, regenerated by combustion in oxygen-containing gas, and returned to the conversion zone, naphtha vapour is fed to the conversion zone at a weight space velocity of 0.1-2, preferably 0.3-0.6 lbs. per hour per lb. of catalyst in the bed, recycled gaseous products are introduced at an inlet hydrogen partial pressure between 75 p.s.i.a. and the partial pressure at which net consumption of hydrogen begins, generally between 125 and 350 p.s.i.a. or more, regenerated catalyst is added at a catalyst-naphtha charging ratio of less than 0.5 : 1, preferably 0.03-0.15 : 1 by weight, and the product of this ratio and the weight space velocity of naphtha is less than 0.15, preferably 0.02-0.06. Recycled product gases are introduced equivalent to 0.5-10, preferably 1.5-5 mols. of hydrogen per mol. of naphtha.  The average temperature of conversion is 825-1025, preferably 900-960 DEG  F. The total reaction pressure is desirably at least 150, e.g. 500 p.s.i.g., to provide the desired hydrogen partial pressure without addition of external hydrogen.  Contact time is 30-300, preferably 75-175 seconds.  Suitable catalysts are sulphides and oxides of left-hand elements of Groups 5 and 6, e.g. chromia-alumina but preferably molybdenum trioxide on alumina gel containing silica or on activated alumina of low soda content.  The size may average 200 mesh with few, if any, particles larger than 40 mesh.  The feed and recycled gas are separately preheated and fed to the base of a tubular reactor surmounted by a filter housing with automatic flow-back of product gas through the filters in sequence to clear catalyst particles.  Partially spent catalyst may be withdrawn periodically from near the base and fresh catalyst fed near the top by gas pressure.  The spent catalyst is transported by gas to a regenerator of similar construction to the reactor and held at 700 DEG  F.  When the regenerator is full, preheated regenerating gas is passed through at 500 p.s.i.g. and the regenerated catalyst may be removed to storage.  Alternatively, regenerated catalyst is continuously taken from near the top of the bed, after stripping with, e.g. steam, and conveyed in dense phase while aerated to near the base of the reactor.  Spent catalyst from the reactor similarly flows to the base of the regenerator.  Valves are provided to control the flow and to prevent back flow if the pressure differential fails. The flow lines are inclined at 45 degrees or more to the horizontal to give free flow.  The bed density in the regenerator is lower than in the reactor, while density is greatest in the transfer lines, viz. 40-55 lb./c. ft. The depth of bed in the regenerator is also greater than in the reactor, the tops of the beds preferably being at the same level.
Patent GB-760508-A (GB)
Title: Improvements in and relating to coal getting machinery
IPC: E21C27/34
Filed: 1954-03-23
Abstract: 760,508. Mineral-mining apparatus. MACCARTHY, C. P. March 21, 1955 [March 23, 1954], No. 8383/54. Class 68 (1). A number of pick-carrying ploughs a are connected to a haulage means j of fixed length extending parallel to a conveyer f and the haulage means j is reciprocated by reciprocatory means attached to either end of said haulage means. The haulage means may comprise chains, rods or cables. The reciprocatory means may be either a piston-cylinder motor arranged at each end of the haulage means, the motors acting on said means alternately, or a double-acting piston-cylinder motor in which the piston rod m thereof extends from both ends of the cylinder n. Jacks u are provided for advancing the apparatus towards the face. The reciprocatory means and the jacks u may be pneumatically or hydraulically actuated. The side frames of the conveyer may be shaped to form guides for the ploughs and the reciprocatory means.
Patent GB-738195-A (GB)
Title: Improvements in or relating to a well drilling structure
IPC: E21B15/00
Filed: 1953-03-26
Abstract: 738,195. Raising derrick masts. MOORE CORPORATION, L. C. March 26, 1953 [July 29, 1952], No. 8388/53. Class 78 (4). Traction on a cable system joining a gin pole 16, Fig. 1, and a well-drilling mast 10, 11 first swings the pole from a reclining position up through the legs of the reclining mast and then raises the mast. In the form illustrated the gin pole and mast are pivoted respectively to structures 14 and 6 carried on a portable base 1, which may be the platform of a vehicle, and the mast rests on a support 8 while the gin pole rests between the upper ends of the support 6, the supports being of sufficient height to permit the engines 4, the draw works 3 and the rotary table 2 to be accommodated beneath the reclining mast and pole. A sling 21 comprising a length of cable doubled on itself is connected to the travelling block 17 and reeved around spaced pairs of pulleys 23, 22 on the mast before being attached to the upper end of the gin pole. When the winding drum 20 winds the drilling line 18 the tension on the sling 21 first raises the gin pole to the position shown in broken lines where a pair of guys 25 on the pole are taut and then raises the mast until sockets 2, Fig. 5, on the mast engage around a tube 28 at the upper ends of the gin pole to which tube the sockets are secured by bolts 29. A similar procedure is employed to lower the mast and pole.
Patent GB-512648-A (GB)
Title: Improvements relating to artificial staple fibre yarns and to fabrics made therefrom
IPC: D02G3/02
Filed: 1938-03-18
Abstract: 512,648. Yarns for pile fabrics. PORTER, W. H. March 18, 1938, Nos. 8454 and 8455. Convention dates, March 19, 1937, and Dec. 15, 1937. [Classes 120 (iii) and 142 (iv)] A pile yarn for pile fabrics consists of twisted staple fibre at least 20 per cent. of which is artificial fibre having a staple of ¢-14 inches and substantially uniform cross sectional area, the average filament cross-sectional area being 1,000-5,000 square microns and the minimum cross sectional dimension at any point in the length of the fibre being at least 40 per cent. of the maximum cross sectional dimension at that point. The yarn may consist substantially entirely of artificial staple fibre, may comprise at least 50 per cent. thereof and may be blended with a natural fibre of coarse texture, e.g., carpet wool. The artificial staple fibre may be blended with not more than 15 per cent. of fine fibre in the manufacture of floor coverings and not more than 33 per cent. of fine fibres in the manufacture of upholstery fabrics. The artificial staple fibre may be lustrous and the fabric containing the yarn may be cross dyed so that the artificial fibre exhibits one colour effect and the other fibre another colour effect. Specification 512,649 is referred to.