baber/WOPTO huggingface dataset:
Patent GB-737469-A (GB)
Title: Improvements in or relating to presses
Inventor: CHEETHAM THOMAS HERBERT
IPC: A21C11/16
Filed: 1952-09-01
Abstract: 737,469. Machinery guards. HUNT (BOLTON), Ltd., J. Sept. 1, 1953 [Sept. 1, 1952], No. 21896/52. Class 80 (4). A guard 168, Fig. 1, of a press 51, particularly for blanking out dough for meat pies and the like, is interconnected with a clutch mechanism so that the guard must be lowered to operative position before a working stroke of the press head 53 is obtained and on the return stroke the guard is automatically raised and disengages the clutch. The guard which comprises a back plate 69, Fig. 3, and two hinged doors 70 of transparent material is suspended from a plate 73 slotted to embrace the crankshaft 62 of the press and co-operating with a disc 65, Fig. 4, secured to said shaft. A rotary clutch key 68 with a lever 66 is carried on the disc 65 and is biased by a spring 67 into engagement with a driving member but held out of engagement when the guard and press is inoperative by engagement with a pivoted abutment plate 93. The guard supporting plate 73 has a projecting pin 79 which engages a vertical limb of a member 95 of the plate 93 to prevent its movement. A lever 81 engages under spring pressure with a projection 78a on the plate 73 to retain the plate and guard in its raised position until actuated by a pedal 96 through a Bowden mechanism. 89 and. a catch 86. The disc 65 also carries a roller 65c adapted to engage a bracket 76 on the plate 73 to raise the latter and the guard on the upstroke of the press head 53. The doors 70 of the guard are normally closed and are interconnected with guide means so that the guard cannot descend whilst they are open and they cannot be opened whilst the guard is in operative position. In operation, after the work has been inserted on the lower platen 52 of the press, the pedal 96 is operated and actuates the lever 81 to disengage from the projection 78a to allow the plate 73 and guard carried thereby to fall into operative position. In falling the pin 79 of plate 73 moves down member 95 and engages a member 94 to rock plate 93 to release the clutch key lever 66. The clutch is thereby engaged and the press head 53 performs a working stroke during which raising of the guard is prevented by a cam surface on the disc 65 engaging the plate 93 which locks the pin 79 of plate 73. On the upstroke of the press the roller 65c on disc 65 engages the bracket 76 on plate 73 to raise it and the guard. At the same time the pivoted plate 93 is returned to its initial position where it contacts the clutch key lever 66 to disengage the clutch and stop the press after one complete cycle of operation. The guard and plate 73 are retained in the raised position by the lever 81 reengaging the projection 78a. The arrangement of the lever 81 and catch 86 is such that the pedal 96 must be released and actuated again before a further working stroke of the press can be obtained. By suitable design of the catch 86 and lever 81 repeated operation of the press could be obtained if the pedal 96 is maintained depressed.
Patent GB-697143-A (GB)
Title: Apparatus for making sponge rubber
Inventor: LEWIS ELISHA BETTS
Filed: 1951-09-18
Abstract: 697,143. Making foam. COMMONWEALTH ENGINEERING CO. OF OHIO. Sept. 18, 1951, No. 21915/51. Class 47(ii) [Also in Group V] In an apparatus for making foam particularly in the manufacture of sponge rubber, comprising a container 10 fitted with a cap 12 through which latex may be continuously supplied, gas under pressure is supplied from a storage tank by means of a pipe 14 and the container 10 is fitted with a rotatable shaft 15 on which vanes or blades are mounted. Specification 697,142, [Group V], is referred to.
Patent GB-1467889-A (GB)
Title: Expandable polymers of styrene
IPC: C08F255/00
Filed: 1974-05-17
Abstract: 1467889 Production of expandable styrene polymers MONTEDISON SpA 17 May 1974 [18 May 1973] 22006/74 Headings C3P and C3C Styrene is polymerized or copolymerized in the presence of a conventional expanding agent and 0À001 to 1% by weight based on the weight of the styrene, of an elastomeric copolymer of ethylene and propylene or an elastomeric terpolymer of ethylene, propylene and a diene hydrocarbon. The preferred elastomeric polymers are (1) a copolymer of ethylene and propylene containing 10-90% by weight of ethylene and having an inherent viscosity between 0À25 and 4, and (2) a terpolymer containing 30- 70% (by weight) ethylene, 70-30% propylene and up to 15% of ethylidene norbornene. Other diene hydrocarbons mentioned are dicyclopentadiene (exemplified), 1,4-hexadiene, methylenenorbornene, butenylnorbornene and methyltetrahydroindene. The styrene may be copolymerized with such co-monomers as alphamethyl styrene, styrenes halogenated in the nucleus, acrylonitrile, methacrylonitrile, esters of acrylic and/or methacrylic acids with alcohols containing from 1 to 8 carbon atoms, and vinylcarbazole. The example discloses the preparation of expandable polystyrene particles and the moulding of shaped bodies therefrom. The expanding agent used was a mixture of npentane and isopentane. In a comparative experiment a polybutadiene rubber was included in the polymerization instead of one of the specified copolymers and terpolymers.
Patent GB-906738-A (GB)
Title: Harrow tooth for the dispensing of liquid ammonia into the soil
IPC: A01B25/00
Filed: 1960-06-23
Abstract: 906,738. Agricultural implements &c. ANDERSON, K. O. June 23, 1960 [June 26, 1959], No. 22050/60. Class 6(1). A harrow tooth for the dispensing of liquid ammonia into the soil comprises a body 7 on which is mounted a tube 13 for conducting the ammonia to the soil and a front bar 8 which is longitudinally adjustable on the body 7 and is held in place by a screw 14 in a clamping body 6, the bar 8 being located in position by means of a guiding sheath 15. As shown the bar 8 is of triangular section. In a modification the body 7 is formed with a triangular groove and the bar 8 is of rectangular cross-section with one of its corners located at the bottom of the groove.
Patent GB-973255-A (GB)
Title: Apparatus for ascertaining the ratio of heat lost in a furnace
Inventor: HOWELL KEITH MALCOLM
IPC: G01N25/28
Filed: 1962-06-07
Abstract: 973,255. Measuring electrically, CAMBRIDGE INSTRUMENT CO. Ltd. June 6, 1963 [June 7, 1962], No. 22110/62. Addition to 937, 248. Heading G1N. Apparatus for determining the efficiency of a furnace by evaluating the heat lost in the flue gas contents and also the calorific value of the fuel, as expressed by the formula where t = the temperature difference between the inlet and outlet gases of the furnace, z= percentage water vapour in the flue gases, r = percentage combustible gas in the flue gases, x= percentage oxygen in the flue gases, y= percentage carbon dioxide in the flue gases, and ys = percentage sulphur dioxide in the flue gases, comprises means for measuring the quantities involved and evaluating the efficiency electrically by an automatically balanced potentiometric circuit. The factors in the numerator of the formula, i.e. the temperature difference t as measured by a differential thermocouple 17, the percentage combustible gas content r as measured by known means 19, and the percentage water vapour content z measured as described below by means 21, 22, 23 are connected in series on one side of a potentiometer wire 7. The factors in the denominator of the formula, i.e. the constant term derived from a fixed potential 1, the percentage oxygen content x as measured by means 4, and the percentage carbon dioxide and sulphur dioxide content combined y and ys as measured by means 10, are connected in series on the other side of the potentiometer wire 7. Resistors 13, 14 &c. are provided to proportion these quantities correctly, and the slider 15 is automatically adjusted to balance the two combined potentials, whereby its rest position is indicative of the above ratio expressing the efficiency of the furnace. The circuit may be made to incorporate additional factors such as the carbon-ash content of the fuel. The percentage water vapour content of the flue gases is determined by passing the gas through a heat exchanger in flowing water whose rise in temperature, measured by resistors 22, 23, is indicative of the latent heat of condensation of the water vapour in the gas. The ratio of the flow rates of the gas and the water and kept constant, and the flue gas is kept at a temperature above 100‹C. to prevent premature condensation.
Patent GB-1024741-A (GB)
Title: Process and apparatus for moulding hollow articles
IPC: B29C49/06
Filed: 1961-06-19
Abstract: 1,024,741. Moulding hollow articles. B. T. HESTEHAVE. June 19, 1962 [June 19, 1961], No. 22115/61. Heading B5A. In a method of blow moulding a hollow article of synthetic resin material having a neck portion, a parison having an integral neck is injection moulded in a parison mould B containing a mandrel 22 carrying a neck mould D, and the moulded parison, the mandrel 22, and the neck mould D are withdrawn axially and transferred to a blow mould (not shown), where the article is blown, the blowing then ceased, the mould D opened to release the neck, and the article removed by repeating the blowing. The mandrel 22 is shaped so that the parison is of such non-uniform thickness that when it is blown the resulting article is of substantially uniform wall thickness. In the blow moulding machine particularly described, a pair of blow moulds and associated mandrels are mounted on a turntable structure rotatable about a horizontal axis beneath a pair of injection cylinders and associated parison moulds.
Patent GB-394157-A (GB)
Title: Improvements in rotary shock absorbers for torque transmission
IPC: F16F15/123
Filed: 1932-08-06
Abstract: 394,157. Yielding couplings ; friction clutches. WÍRNER, H., 28, Am Kreuzstein, Bischofsheim, and FICHTEL & SACHS AKT.-GES., Schweinfurt-on-Main, both in Germany. Aug. 6, 1932, No. 22140. [Class 80 (ii).] In yielding couplings or spring drives of the type comprising tangential helical springs housed in aligned openings in driving and driven discs and acting through bearing- plates provided with means for centring the springs and for preventing friction of the plates on the outer edges of the openings when the springs yield, the bearing-plates are formed in one piece of sheet metal. As applied to a motor-vehicle clutch, a disc 6 with an attached ring 5 is rotatably mounted between rings 3 secured to the flanged hub 1, the parts 3, 5, 6 having aligned openings 7 for compression springs 8 and their bearing-plates 9. The plates 9 have centring-nipples 10 and extensions bent at an obtuse angle a to lie against the similarly-inclined outer edges of the openings. The extensions are further bent to form tongues 11 which, with inwardly-directed tongues 12, lie between the rings 3 to prevent rotation of the bearing-plates. Due to the angle alpha, the outer faces of the extensions recede from the relatively-moving outer edges of the openings 7 when the plates 9 are lifted from the ends of the openings as the springs yield.
Patent GB-190750-A (GB)
Title: Improvements in and connected with the suspension of electric lamps
IPC: F21V21/096
Filed: 1921-08-20
Abstract: 190,750. Neale Magnet Construction Co., Ltd., Neale, J., and Wilms, L. H. Aug. 20, 1921. Electromagnets.-An electromagnetic supporting device for electric lamps comprises an annular electromagnet in which the central pole-piece and outer shell are formed in one piece. As shown in Fig. 1, the lamp-holder a of an electric inspection lamp is mounted on an insulating base b secured to the outer shell h<2> of the electromagnet. The winding i surrounding the central pole-piece h<1> is connected in series with the lamp-holder, a switch j disposed in the base and operated by a plunger projecting through the side of the base, being included in the circuit.
Patent GB-438473-A (GB)
Title: Improvements relating to dry gas meters
IPC: G01F3/22
Filed: 1934-07-30
Abstract: 438,473. Gas meters. PARKINSON & COWAN (GAS METERS), Ltd., and WHITESMITH, I. N., Terminal House, Lower Belgrave Street, London. July 30, 1934, No. 22159. [Class 54] A dry gas meter comprises two similar sections a, b each consisting of a complete outer measuring chamber d, a diaphragm c, and an inner measuring chamber e which is completed by an interposed wall g when the sections are bolted together. The sections a, b may also be formed integrally with parts f of the valve box, which is rendered complete by a cover h. The sections may be moulded from synthetic resin, or made from a suitable alloy, or produced from sheet material. The transfer valves k, m are preferably oscillated about fixed pivots y by a crank-shaft v rotated by flag-rods operated by the diaphragms. The gas passages, i, j associated with the valves k, m may be cast or formed integrally with or separately from the sections a, b, the passages j communicating with a common outlet passage x at the back of the meter. The indicating mechanism is mounted in a recess in one section of the meter and is held in position by the other section. The valve box may alternatively be made separately and be secured in a recess around the edge of the sections a, b. The diaphragm discs p, q may be of synthetic resin or metal.
Patent GB-442139-A (GB)
Title: Metallic flexible tubing and the manufacture thereof
IPC: F16C1/26
Filed: 1934-07-30
Abstract: 442,139. Bowden mechanism; flexible tubing. TONDEUR, R., 25, Denbigh Terrace, Notting Hill, and BOWDEN (ENGINEERS), Ltd., Victoria Road, Willesden Junction, both in London. July 30, 1934, No. 22200 [Classes 80 (ii) and 80 (iii)] [See also Group XXVIII] Flexible tubing consists of two or more flexible tubings each composed of two or more closely interwound relatively laterally displaceable coils 1, 2 and 4, 5 respectively, such coils being of opposite hand and grouped or nested one inside the other and having their corresponding ends secured together. The tubings may be formed of wires of round and trapezoidal section, or both of trapezoidal section, but reversed as described in Specification 412,367 or four or more even number of coils may be used. Sufficient space is left between the tubings to allow the coils of each tubing to be relatively laterally displaced with freedom. The wires of the inner and outer tubings are preferably wound of the same pitch. Since the components in trying to untwist act one against the other to retain the coils in a state of compression, a wider choice of section is available and moreover wires may be chosen more of a ribbon-like character in the axial direction. The tubing is particularly applicable to Bowden mechanism and also for use where a fluid-tight conduit is required, and as the outer casing or covering of flexible shafting. The individual tubings may be produced by the method described in Specification 428,937, [Group XXII].
Patent GB-244414-A (GB)
Title: Improvements in or relating to wind rotors for producing rotary power and generatingcross drive
IPC: F03D3/00
Filed: 1925-09-05
Abstract: 244,414. Savonius, S. J. Dec. 12, 1924, [Convention date]. Propelling by rotary cylinders utilizing Magnus effect.-A wind motor, which may act as a simple current motor or may be mounted so as to utilize the Magnus effect, for example as a sail on a boat, comprises two oppositely disposed vanes s, s<1>, Fig. 2, arranged to overlap each other so as to form a central gap between the inner concave sides of the vanes. The form of the vanes may be cylindrical, parabolic, helical or the like. The inner and outer curvatures of the vane may differ, Fig. 4. The surface of the vane may be conical, Fig. 5. Regulation and reversing are effected by pivoting the vanes s, s<1> on their endplates a, b so that they are adjustable. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification with the gap disposed between the outer convex sides of the vanes, Fig. 3 (Cancelled), a modification with no gap between the vanes, Fig. 1 (Cancelled), a modification with three vanes, Fig. 6 (Cancelled), and a modification for utilizing the Magnus effect wherein two vane rotors are mounted on radial arms free to rotate about a horizontal axis, Fig. 8 (Cancelled). This modification may be driven by an engine and act as a propeller. When utilizing the Magnus effect, the speed of rotation may be increased by a prime mover. Openings k may be formed in the endplates a, b to admit air. A pair of vane rotors may replace the planes of an aircraft, the wind pressure rotating the rotors and setting up a transverse thrust. This subject-matter does not appear in the Specification as accepted.
Patent GB-798644-A (GB)
Title: Improvements in or relating to the purification of carbon or graphite articles
Inventor: BEESTON ALAN WILMOT
IPC: C01B31/02
Filed: 1955-08-03
Abstract: Carbon or graphite is purified by treatment at elevated temperature with a gaseous fluorinating agent, e.g. fluorine, hydrogen fluoride, or a fluorinated hydrocarbon which dissociates to produce fluorine or hydrogen fluoride at the temperature of treatment.  Organic fluorides specified are tetrafluoro-, dichloro-, monofluoro-, dichlorodifluoro-, monochlorodifluoro-, and trichloromonofluoro-methane and mono-, di, tri- and tetrafluoro ethylene.  The temperature of treatment may be 1860-2600 DEG  C., preferably 2200-2600 DEG  C.  The material may be pretreated with a gaseous or vaporous chlorinating agent at a progressively increasing temperature initially less than 1860 DEG  C., preferably increasing to a temperature in the range 1860-1950 DEG  C.  Chlorinating agents specified are chlorine, carbon tetrachloride, and hexachloropropylene.  Nitrogen, ammonia, or helium may be used as carrier or diluent for the chlorinating and/or fluorinating agent and to sweep out the chlorinating and fluorinating agents after treatment.  Petroleum coke powder bonded with coal tar pitch, and graphite prepared therefrom, may be treated.  A fluorinating apparatus (Fig. 1, not shown), comprises an electric furnace comprising graphite electrodes separated by a bed of pure petroleum coke in which are placed the graphite articles to be treated.  Porous tubes for introduction of the fluorinating agent are mounted below the articles.
Patent GB-871394-A (GB)
Title: Improvements in or relating to vibration equipment
IPC: B06B3/00
Filed: 1959-06-30
Abstract: 871,394. Testing by vibrations. GENERAL ELECTRIC CO. June 30, 1959 [July 11, 1958], No. 22384/59. Class 106 (2). A device for testing electronic and other apparatus for its ability to withstand vibrations comprises a fixed support 1, a plate 2 secured to the support 1 and having a smooth hard horizontal surface, and an oscillation plate 4 on which the apparatus 6 to be tested is mounted, a film 5 of viscous lubricating material being interposed between the plate 2 and the oscillation plate 4, and reciprocating means 8, 9 for imparting oscillatory motion to the plate 4. It is stated that by means of the cohesive force of the lubricant a truly horizontal motion of the oscillation plate 4 is obtained, particularly if the rod 9 connecting the vibrator 8 with the plate 4 is in line with the centre of gravity of the plate 4 and the apparatus 6 being tested. In order to control the temperature, a chamber 11 having a heating or cooling device 14 and lined with insulating material 13 may be provided, a gap 15 being left for movement of the push-rod 9.
Patent GB-1135547-A (GB)
Title: Disc pack assembly
Inventor: DAVID CHARLES WILLIAM
IPC: G11B23/03
Filed: 1967-05-15
Abstract: 1,135,547. Magnetic recording disc assembly. DISC PACK CORP. 15 May, 1967 [6 June, 1966], No. 22492/67. Heading G5R. A disc pack assembly comprises an enclosure and a stack of metal recording discs provided with a thin magnetic oxide coating and mounted on a rotatable member within the enclosure, the enclosure having upper and lower walls, wherein one of the walls has a recess defining a recessed nesting surface and the other wall has a projection defining a projecting nesting surface adapted to engage snugly with the recessed nesting surface of another like assembly when the two assemblies are stacked one on top of the other. As shown the lower wall 27 has a recess 37, and the cover 19 has an annular projection 65. The lower wall has a frusto-conical guiding surface 45 which co-operates with a similar surface 69 on the adjacent cover 19 so that a shoulder 43 seats on the annular projection 65. The oxide-coated annular metal discs 17 are secured to a central spacer ring 91, with intervening spacer rings 89, by annular clamps 85 and 87 which are bolted together, the ring 91 forming part of a mounting member 15 having a frusto-conical driving surface 73, Fig. 2, for co-operation with the driving spindle of a data processing unit (not described or shown). An apertured cover-plate 95 is secured, at its centre, to the mounting member 15 by screws (not shown). A disc pack may be lifted from the stack, when needed, by a transverse recessed handle 61, and the lower wall 27 may then be removed by unscrewing a knob 49 from a tube-and-plate assembly 109, 103, retained in the mounting member 15 by engagement of plate 103 under the inner edge of plate 95. The cover 19 remains fastened to the mounting member 15 by engagement of a ball 133, projecting from tube 109, with a grooved ring 143 secured to the cover. When the driving surface 73 of member 15 is placed over the driving spindle, a projection on the spindle raises a locking pin 113 against the force of a spring 115, to permit ball 133 to move inwards. Thereupon cover 19 with ring 143 may be lifted off (pins 145 lifting out of holes 105 in plate 103). Reference has been directed by the Comptroller to Specification 1,019,087.
Patent GB-188811-A (GB)
Title: Improved process of bleaching textile fibres
IPC: D06L4/10
Filed: 1921-08-24
Abstract: In bleaching straw, wool, cotton, and other textile fibres with solutions of peroxide of sodium or strongly alkaline solutions of hydrogen peroxide, the bleaching-lyes are arranged to come into contact, in the apparatus used, with surfaces only of pure nickel. Thus, metal pumps coated with nickel at the parts contacting with the lyes, nickel tubes for the heating-coils conveying the liquid, and nickel-plated iron receptacles may be used; or the whole apparatus may be made of nickel.ALSO:In bleaching fibres with solutions of peroxide of sodium or strongly alkaline solutions of hydrogen peroxide, the bleaching-lyes are arranged to come into contact, in the apparatus used, with surfaces only of pure nickel.  Thus, metal pumps coated with nickel at the parts contacting with the lyes, nickel tubes for the heating-coils conveying the liquid, and nickel-plated iron receptacles may be used; or the whole apparatus may be made of nickel.