baber/WOPTO huggingface dataset:
Patent GB-1511917-A (GB)
Title: Printing from magnetic images
IPC: G03G19/00
Filed: 1975-07-17
Abstract: 1511917 Printing from magnetic images CUBIC CORP 17 July 1975 [22 July 1974] 30099/75 Heading B6C A method of printing from an original comprises forming a latent magnetic image on a first magnetizable medium, transferring the latent image to a second magnetizable medium developing with toner, and transferring the toner image to a copy sheet. In one embodiment, Fig. 1, a web 14 comprising a transparent flexible base (32), Fig. 3 (not shown) and a layer of magnetizable material (34), e.g. chromium dioxide arranged in a fine grid pattern is passed between an illuminating lamp 40 and the original 10; as a result of reflection back from the original the temperature of the magnetic layer is locally raised above the Curie point to produce a magnetic image on the web 14. At the transfer station 50, a transfer head 52 causes the image to pass to the smooth metallic, e.g. nickel-cobalt alloy surface 60 of drum 22. Toner is applied at 24, and copy sheets 12 printed by roller 28, the image being fused at 30. By providing a storage loop 48 in the path of web 14, the speeds of imaging and image transfer need not be matched; multiple copies can be produced from the same image on drum 22. The magnetizable layers (34) and 60 are chosen so that the latter has a higher remanence but lower coercivity, enabling an improvement in the definition of the image on the drum 22 compared with web 14. Multicolour arrangements involving colour-separated images and separate drums and developing stations are described, Fig. 4 (not shown). Transfer of the developed image on to copy sheets may be assisted by a magnet (86), Fig. 5 or an electrode (90), Fig. 6 (not shown) in a further embodiment, Fig. 7, a first magnetizable strip 154 receives a character pattern from recording head 150 comprising an array of conductors (174), Fig. 9 (not shown) to produce lines of text along its length; each line is transferred separately to a second magnetic strip 162 using illuminating lamp 164 to firstly heat the second strip above its Curie point, and then remagnetizing the second strip 162 on cooling according to the pattern on strip 154; additionally an optical image of a form on strip 206 can be superimposed, to alter the magnetic image accordingly. Individual lines of text are linked up on strip 162 to form, e.g. a page, which is then transferred, still as a latent image to drum 168 where it is developed at 169 and printed on to copy sheets 170.
Patent GB-226239-A (GB)
Title: An improved water-level indicating device for high-pressure steam boilers
IPC: F22B37/78
Filed: 1924-12-15
Abstract: 226,239. Jonas, J. Dec. 13, 1923, [Convention date]. Indicators actuated by pressure of head of liquid; indicators actuated by floats. - In a water-level indicator for high-pressure boilers, of the kind in which a U-tube d containing mercury c is connected to the water and steam spaces of a boiler a, an iron float i is placed on one or each of the mercury surfaces, and the movements of the mercury consequent upon changes of the boiler water level are indicated by a magnetic needle m operated by the iron float. The magnetic needle may be astatic. It operates a pointer either directly or through mechanical or electrical connections. The part of the U-tube containing the mercury may be made of nickel or other metal which is not attached by mercury, or the tube may have an internal coating of enamel or varnish. Oscillations of the mercury may be damped by partitions or by roughening the inner surface of the tube. A metal having a low melting point such as Wood's metal may be used in place of mercury. The indicator may be electrically connected to safety apparatus.
Patent GB-1514089-A (GB)
Title: Triazinyl-fluorans as colourless precursors in carbonless duplicating systems
IPC: B41M5/145
Filed: 1976-07-20
Abstract: 1514089 Triazinyl-fluoran colourless precursors STERLING DRUG Inc 20 July 1976 [31 July 1975] 30198/76 Heading C4P The invention comprises triazinyl fluorans which may be used as colourless precursors in carbonless duplicating systems and which have the general Formula I wherein R is C 1-  4  non-tertiary-alkyl; R<SP>1</SP> and R<SP>2</SP> are H or C 1-  4  non-t-alkyl; and R<SP>3</SP> and R<SP>4</SP> are C1 or one of the groups where R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are H or C 1-4  non-t-alkyl; R<SP>8</SP> and R<SP>9</SP> are C 1-4  non-t-alkyl; R<SP>10</SP> is C 1-4  non-t-alkyl or benzyl optionally substituted by one or two of halo or C 1-3  alkyl and An is an anion, with the proviso that no more than one of R<SP>3</SP> and R<SP>4</SP> is chlorine. They may be prepared by reacting a 2'- (4,6-dichloro-s-triazin-2-yl)-NR<SP>1</SP>-3<SP>1</SP>-R<SP>2</SP>-N(R) 2 fluoran with one or two molecular proportions of an amine corresponding to one of the formulae Ia, Ic, Id or Ie above and if desired quaternizing a compound of formula I where R<SP>3</SP> and/or R<SP>4</SP> has the formula Ia to produce the corresponding compound wherein R<SP>3</SP> and/or R<SP>4</SP> has the formula Ib.
Patent GB-1273003-A (GB)
Title: Glucose isomerase enzyme preparation and production and use thereof in isomerizing glucose
Inventor: IISUKA HIROSHI
IPC: C12N9/92
Filed: 1969-06-13
Abstract: 1,273,003. Glucose isomerase. CPC INTERNATIONAL Inc. 13 June, 1969, No. 30235/69. Heading C3H. In a glucose isomerase enzyme preparation, at least a part of the glucose isomerase is of extracellular origin. The preparation may be derived from the growth of Streptomyces venezuelae or S. olivochromogenes. An especially useful nutrient contains both starch and xylose as carbon source. The medium may be centrifuged to remove cells and the enzyme precipitated with ammonium sulphate and conventionally purified.
Patent GB-741030-A (GB)
Title: Improvements in or relating to random packed elements for distillation and chemical process columns
Inventor: THORNTON JOHN DESMOND
IPC: B01J19/30
Filed: 1953-11-03
Abstract: 741,030. Treating liquids with gases. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 3, 1954 [Nov. 3, 1953], No. 30293/53. Class 55 (2). Random packed elements for gas and liquid contact columns &c. comprise a star-shaped lamina with an even number of points and one or more central apertures 8, the points 1 ... 6 being bent alternately in opposite directions through about 120 degrees to meet at apices on opposite sides of a polygonal part 7. In the form shown the element is constructed from a sixpointed metal lamina,.- the distance between the apices being about the maximum diameter of the hexagonal portion, i.e. of the order of ¢ inch.
Patent GB-281095-A (GB)
Title: Improvements in can openers
IPC: B67B7/70
Filed: 1926-11-30
Abstract: 281,095. Johnson, J. Y., (Enterprise Manufacturing Co, of Pennsylvania). Nov. 30, 1926. Opening by cutting. - A canopener comprises a metal body 1, Fig. 1. supporting a toothed feed wheel 6 adapted to engage the rim of a can and operated by a handle 7, the upper part of the body being formed into an integral offset spring arm 2 carrying a cutter blade 9. pivoted at 10 and movable by a handle 13. The end of the offset arm 2 lies within a notch 4 in a slightly bevelled lateral extension 3 of the body. A segmented friction member 14, Fig. 2, extending from. the cutter bears against the upper edge of the body 1 when the cutter is in the. raised position. The body 1 carries a guide 8 adapted to bear against the side of the can. The Specification states that owing to the yieldable character of the spring arm 2 the device is adapted to cut around the corners of a rectangular tin without straining the parts. The opener is shown in operation in Fig, 6, Specification 254,471 is referred to.
Patent GB-934002-A (GB)
Title: Friction clutch comprising oil-lubricated discs
IPC: F16D13/64
Filed: 1961-08-23
Abstract: 934,002. Friction clutches. MASCHINENFABRIK HEID A.G. Aug. 23, 1961 [Dec. 14, 1960], No. 30430/61. Class 80 (2). To reduce the idling torque and disengaging time of oil-lubricated discs of a friction clutch, particularly of the electromagnetic type, inner discs 1 and outer discs 3 are provided with apertures 2 and co-operating radial, oblique or tangential oil grooves 4 respectively, arranged so that in any relative position of two adjacent discs at least one or more or all of the apertures 2 register with the faces between the oil grooves 4. On clutch release the centrifugal pressure generated by the oil trapped in the covered apertures acts to separate the discs and, following relative rotary movement of the discs, the oil escapes to lubricate the entire sliding surface of the discs, the apertures being continuously re-filled with oil through the grooves during this movement, maintaining the apertures full for the re-engaged clutch condition. The oil grooves may be curved and may only extend part-way across the friction surface.
Patent GB-1127684-A (GB)
Title: Improvements in radial flow turbine
Inventor: ERWIN JOHN RICHARD
IPC: F01D1/06
Filed: 1966-07-06
Abstract: 1,127,684. Boundary layer control. GENERAL ELECTRIC CO. 6 July, 1966 [16 July, 1965], No. 30432/66. Heading F2R. [Also in Division F1] In a radial outward flow turbine, two spaced discs 10, 12 form a shaft-supported rotor comprising in seriatim order an unobstructed, curved fluid inlet passage 13 to direct fluid under pressure radially outwardly in two-dimensional flow, highly cambered rotor blades 16 secured between the discs 10, 12 at a radial distance from the shaft 11 to receive fluid flowing outwardly in two-dimensional flow from the inlet passages, the discs and blades rotating as a unit in a direction opposite to the direction of camber of the blades, and a rotating vaneless diffuser passage 17 formed between the radial outer ends of the discs, a vaned diffuser 18 being radially spaced from the diffuser passage 17 and a collector or scroll 19 into which the fluid discharges surrounding the rotor. A built-in boundary layer control is provided by diffuser passage 17, the rotating side walls of the discs 10, 12 energizing the boundary layer due to the centrifugal field on any particle since all boundary layer particles will have a high tangential velocity approaching or equal to the rotational velocity of the discs. Stationary guide vanes 14, which may be adjustable, are provided in the inlet passage 13 radially inwardly of the blades 16 to impart a tangential velocity to the fluid. Since there is a significant pressure rise between the vaned diffuser 18 and the scroll 19, a boundary layer problem may be encountered. If so, control may be obtained by boundary layer control means provided in the walls of the vaned diffuser 18 and comprising suction or blowing means 20, or the walls may be porous.
Patent GB-733986-A (GB)
Title: Improvements relating to bars for use on motor vehicles
Inventor: NAUGHTON CECIL ALEXANDER GRANT
IPC: B60R13/00
Filed: 1953-11-04
Abstract: 733,986. Vehicle bodies. PYRENE CO., Ltd. Feb. 17, 1954 [Nov. 4, 1953], No. 30499/53. Drawings to Specification. Class 108(1). A bar for mounting car badges &c. is secured to the stone guard or bumper overriders of a vehicle and comprises a semi-circular, circular, three or four-sided box-section tube having a continuous slot in one wall through which fixing screws are inserted to engage nuts housed in the tube and restrained from rotation by the interior surfaces of the tube.
Patent GB-509665-A (GB)
Title: Improvements in and relating to dividing gear for machine tools
IPC: B23F23/08
Filed: 1938-10-21
Abstract: 509,665. Indexing-mechanism for grinding-machines. WOTAN-UND ZIMMERMANN-WERKE AKT.-GES. Oct. 21, 1938, No. 30534. Convention date, No. 29, 1937. [Class 60] [Also in Group XXII] In a dividing-gear for a machine-tool such as a machine for grinding gears the dividing movement is effected through a coupling comprising a rotatable part which before and after the dividing movement is in the same condition of movement as the work, while during the dividing movement this part is coupled to another part and is thereby moved relatively to the work. In Fig. 1 the coupling 2 is splined on a shaft 1 which transmits movement through a gear 16 to the dividing mechanism. The coupling is urged by springs 6 so as to engage a locking projection 7 on the coupling with a stationary part 10. When indexing is required, the sleeve 2 is moved by hand or automatically into engagement with a constantly-driven wheel 12 which rotates the coupling and shaft 1 through one revolution, whereupon the projection 7 is again forced into its notch. In some cases a number of locking projections 7<1>, Fig. 8, of different breadths, each coacting with a corresponding notch may be formed on the coupling. In a modification, Fig. 3, the coupling is normally locked to a member 22 which rotates with the casing 24. The coupling is splined to a sleeve 18 carrying a gear 27 connected through change-gears and Geneva mechanism 31, 32 to a gear 36 on the work-spindle 37. When the coupling is locked to the sleeve 22, the casing, Geneva mechanism and shaft 37 rotate together. When the coupling is engaged with the stationary part 19, the wheel 27 is arrested and the wheel 28 rolls on the wheel 27 to operate the Geneva mechanism and index the shaft 37. After one revolution of the casing the coupling re-engages the sleeve 22. In some. cases the sleeve 22 may make only a fraction of a revolution and the Geneva mechanism dispensed with. In a further modification, Fig. 5, the coupling coacts with a stationary sleeve 39 concentric with a rotatable sleeve 38 connected by a gear train 41 to the shaft 40 which is also connected by gears 48 to the indexing worm 51. When the coupling is moved into engagement with the driven wheel 12 a predetermined number of revolutions of the shaft 40 occurs before the notches in the sleeves 38. 39 are again in alignment to permit the coupling to return to the Fig. 5 position. In a further modification, Fig. 7, the outer sleeve 39 rotates with the casing 38 while the inner sleeve carries a wheel 59 geared to the shaft 68. When the coupling is in the Fig. 7 position the casing and shaft 68 rotate together, but when the coupling is engaged with a driven part 53 the wheel 59 rotates relative to the casing and the shaft 68 also rotates, in the casing until the locking gaps in the sleeves are opposite the tooth 7.
Patent GB-708236-A (GB)
Title: Improvements in or relating to a method and means for uniting overlapping materials
IPC: B21D39/02
Filed: 1952-12-02
Abstract: 708,236. Shearing. WILLIAMS, I. A. Dec. 2, 1952, No. 30558/52. Class 83 (4) Joining sheets by interengaging formations. - In uniting metal and other sheets by interengaging formations deformed after assembly a V- ended punch 12 co-operates with bevelled discs 14 resiliently held on a shaft 18 by springs 27 to slit sheets 10, 11 and form recesses 11b on the under side of sheet 11. The end of the punch then cooperates with an anvil 13 to compress and widen the slit portion to lock the sheets together. The discs 14 are loosely mounted on the shaft 18 and butt into recesses on the anvil 13. Spaces 19, 21 allow of clearance of waste. U.S.A. Specifications 2,254,558 and 2,288,308 are referred to.
Patent GB-870182-A (GB)
Title: Air inlet for high speed aircraft
IPC: F02C7/042
Filed: 1958-09-24
Abstract: 870,182. Air intakes for aircraft. UNITED AIRCRAFT CORPORATION. Sept. 24, 1958 [Dec. 23, 1957], No. 30591/58. Class 4. [Also in Group XXVI] An air intake for the power plant of a high speed aircraft (described in the embodiment in terms of a wind tunnel model) comprises an upstream opening 20 which passes air to a supersonic diffuser portion 22 and thence through a throat 24 to a subsonic diffuser 26. The intake is formed by a compression surface 28 which is part-circular in cross-section and forms the major, fixed portion of the intake and by a slidable cowl 30 which is positioned by a further outer fixed wall 50 for longitudinal sliding movement to vary the geometry of the leading edge of the air intake. A screwjack mechanism 60, 62 enclosed in a fairing 74 and operated by a motor 68, effects axial movement of cowl 30. Boundary layer air on surface 28 is bled off by a scoop 38 which exhausts through a passage 40 and boundary layer bleed passages 34, 32 are formed in surface 28 and cowl 30 respectively.
Patent GB-1446995-A (GB)
Title: Device for detecint the occurrence of identical binary words during a same cycle
IPC: H04Q11/04
Filed: 1974-07-11
Abstract: 1446995 Checking memory address circuits INTERNATIONAL STANDARD ELECTRIC CORP 11 July 1974 [18 July 1973] 30700/74 Heading G4A [Also in Division H4] A detection device for detecting the occurrence of identical binary words within a repetitive cyclic generation of such words comprises a store the locations of which are addressed by the binary words as they are produced, means to set the content of each addressed location to a first condition, means to reset the content of each word once per cycle and means to generate an error signal if the content of an addressed location is already set to the first condition. The Figure shows a conventional TDM switching arrangement including a speech store 4 controlled by an address memory 7 under supervision of a control unit 3. For normal connections each location of the speech memory 4 should be addressed by the addressing memory only once per cycle and this is checked by a unit 1 comprising a memory 12 having a single bit location per possible address. The locations of this store are addressed simultaneously with the store 4. Normally immediately after the content has been read out it is set to "1", the address inputs being provided by address memory 7, register 11 and OR gate 13 and the data input being provided via OR gate 17. Subsequently during the cycle each location in memory 12 is addressed by the clock unit 9 and reset to zero, thus provided each location in memories 4 and 12 is addressed only once per cycle the content of the addressed location in memory 12 is always zero. If, however, a location is addressed twice in a cycle a one output will be read out to a register 15 setting a flip-flop Q which signals to the control unit that an error has occurred. A memory 21 may be provided to store this address. To allow for the possibility that a double connection may be allowable the address memory 7 includes an additional bit which is set to zero for a special double connection and thus disables an AND gate 19 between register 15 and the bi-stable Q.
Patent GB-603020-A (GB)
Title: Improvements in or relating to machines for applying handles to cutlery and similar articles
IPC: B25B27/00
Filed: 1945-11-16
Abstract: 603,020. Assembling force fits. FAIREST, M., and FAIREST, D. H. Nov. 16, 1945, No. 30754. [Class 83 (iv)] [Also in Group XXIII] In a machine for applying handles to tanged articles wherein the apertured handle is gripped between jaws and pressed on to the tang of the knife &c. which is held against an abutment, the latter is mounted so as to be movable in the direction of the applied pressure against spring resistance. The knife &c. blade 33 with the 'handle 22 of plastic material pushed partly along the tang 40 is supported in the slotted part 31 of the abutment block 30 which is slidably mounted on guide rods 10 and has a recess 35 containing springs 36, Fig. 2, engaged by the head 37 of an adjustable screw plunger 38. The handle gripping device comprises a pair of wedge-shaped jaws 21 engaged by two wedge-shaped plates 20 on a block 14 slidable on the guide rods 10 and actuated by a plunger 19 and cam 15 driven by a motor 16, the jaws 21 being held down by plates 29 and loosely connected at the rear ends by a pad 27 of relatively soft material such as fibre board adapted to engage the end of the knife &c. handle.
Patent GB-520691-A (GB)
Title: Improvements in or relating to the manufacture of artificial filaments, foils and similar materials
IPC: C08B13/00
Filed: 1938-10-25
Abstract: 520,691. Cellulose derivatives. DREYFUS H. Oct. 25, 1938, No. 30828. [Class 2 (ii)] Artificial filaments, foils, and similar materials made of organic derivatives of cellulose containing free hydroxy groups are heated with a reagent containing both an esterifying and an etherifying radicle until both the radicles have reacted with the hydroxy groups. Reagents employed include halides of halogenated acids, e.g., α- and #-chloropropionyl chlorides, α- bromo propionyl bromide, γ-chlorobutyryl chloride, and o-chloromethyl benzoyl chloride. Compounds containing an alkylene oxide radicle in conjunction with a carboxylic acid or carboxylic acid halide group, e.g., glycidic acid or propylene oxide γ-carboxylic acid, may be used. Reagents containing carboxylic acid groups should in general be employed in presence of a halogenating agent, e.g., phosphorus pentachloride or thionyl chloride. The reaction may be carried out by heating the materials with the reagent at relatively low temperature, e.g., 40-80‹ C. The reagent may be employed in solution in ether, or a halogenated hydrocarbon, or other diluent which is not a solvent for the articles which are treated. Calcium hydroxide or carbonate, or sodium acetate or other salt of a weak acid and strong base may be present to neutralise hydrohalide acid. Materials of acetone soluble cellulose acetate or of other cellulose esters or ethers may be treated.
Patent GB-796511-A (GB)
Title: Improvements in seats for ambulances and like vehicles, including aircraft
IPC: A61G3/00
Filed: 1955-10-27
Abstract: 796,511. Reversible seats. WADHAM BROS., Ltd., ADAMSON, S., and REED, N. F. Sept. 25, 1956 [Oct. 27, 1955], No. 30831/55. Class 52(2) [Also in Group XXXII] A seat squab 1 for an ambulance vehicle is trunnioned at 6 on pivoted links 4 for reversal to present a platform to receive a stretcher. The back squab 7 is hinged at its top edge 8 and the lower edge is normally propped out to overlie the seat by means of a bell-crank 9. Movement of the seat on reversal releases the lower limb of the bell-crank allowing the back to swing to the vertical position shown.
Patent GB-1174950-A (GB)
Title: Improvements in or relating to Apparatus for Straightening Hot Rolled Tubes
IPC: B21D3/04
Filed: 1967-07-05
Abstract: 1,174,950. Straightening. FRIEDRICH KOCKS. 5 July, 1967 [11 July, 1966], No. 30900/67. Heading B3E. Straightening apparatus for hot rolled tubes T includes parallel horizontal hollow rolls 10, at least some of which have indented profiles to permit cooling air to pass between the rolls. Although all the rolls may be indented it is convenient to have a group of plain rolls whose purpose is mainly straightening followed by a group of indented rolls which serve mainly for cooling. Cooling water may be circulated within the hollow bores of at least some of the rolls. The indented rolls may be formed with spaced annular collars or grooves which are staggered relative to adjacent rolls, or with helical collars or grooves. The rolls may be rotated at the same speed or may have progressively increasing peripheral speeds in the direction of feed. This speed control is arranged by driving the individual rolls at increasing speeds and/or by progressively increasing their diameters.