baber/WOPTO huggingface dataset:
Patent GB-491800-A (GB)
Title: Improvements in or relating to the manufacture and use of acrylic acid esters and polymerisation products thereof
IPC: C08F20/18
Filed: 1937-03-08
Abstract: Esters of acrylic acid with alcohols the radicles of which comprise straight or branched aliphatic chains of seven to sixteen carbon atoms, are manufactured by direct esterification in the case of primary alcohols, by treatment of the alcohols with acrylic acid halides or anhydride, by splitting off hydrogen halide or water from the corresponding esters of b -halogenpropionic acids or b -hydroxypropionic acid, by reacting the alcohols with ethylene cyanhydrin or by reacting the alcohols with low molecular acrylic esters.  The reaction with ethylene cyanhydrin is effected in the presence of a dehydrating agent, e.g. by heating a mixture of the alcohol and ethylene cyanhydrin with sulphuric acid or by first treating the cyanhydrin with sulphuric acid and then heating the reaction mixture with the alcohol.  In examples: (1) acrylyl chloride is heated with sec. octyl alcohol and calcium carbonate; (2) lauryl alcohol or the alcohols obtained by hydrogenation of coconut oil or its fatty acids or their esters are similarly reacted; (3) methyl acrylate is boiled with cetyl alcohol in the presence of b -naphthol and p-toluenesulphonic acid.  Other alcohols specified are a -ethylhexanol, heptyl, octyl, nonyl, n-decyl and myristyl alcohols. Polymerization products are manufactured by polymerization, by the action of heat, irradiation or heat and pressure, if desired in the presence of polymerization catalysts, e.g. organic or inorganic peroxides, ozonides or gaseous oxygen, of the acrylic esters described above, alone or in admixture with one another or with other substances, e.g. other derivatives of acrylic or methacrylic acids, vinyl compounds, isoprene, butadiene or styrene.  The products may be employed in paints, varnishes and lacquers, in lubricating oils for increasing the viscosity index, as plasticizers for nitrocellulose lacquers, in coating materials for rubber, leather or paper, as protective colloids in the preparation of emulsions, as adhesives in the preparation of laminated glass, e.g. by treating a sheet of celluloid with the monomeric material, interposing the treated sheet between two sheets of glass and completing the polymerization in situ, in the preparation of insulation material and moulding powders, in the treatment of fabrics, and in the impregnation of leather or other fibrous material.  The polymerization of the products of the examples above is described.
Patent GB-103923-A (GB)
Title: Improvements in or connected with Clutches for connecting the Propellors or Tractors of Aeroplanes or the like with their Driving Shafts.
Inventor: DANIEL MYRDDIN
IPC: B64D27/00
Filed: 1916-05-12
Abstract: 103,923. Daniel, M. May 12, 1916. Propelling.-Clutch parts D, D<1>, turning with the driving-shaft Band propeller A of an aeroplane or the like, are normally disengaged by a spring E, but may be engaged by a lever J and thrust-ring C bearing on the propeller. At high speed, the propeller thrust keeps the clutch parts in engagement, so that the lever J may be released, the clutch being automatically disengaged when the propeller speed falls below a predetermined limit.
Patent GB-125515-A (GB)
Title: Improvements in or relating to Furnaces.
Inventor: SMALLWOOD ALFRED
IPC: F27B9/30
Filed: 1918-04-23
Abstract: 125,515. Smallwood, A. April 23, 1918. Metal-heating furnaces; hearths.-The improvements are described as applied to a furnace having combustion chambers b in a removable hearth a, at the end of which gas burners are fitted, or into which gas or furnace gases are delivered from a gas-producer or fire-box arranged at one end. The products of incomplete combustion pass through flues e and issue through lateral ports f where they are met by heated air issuing through ports i, which are individually adjustable. The air is heated in a recuperator, preferably arranged above the roof as shown and consisting of air flues g alternating with waste-gas flues k. The waste gases first pass through a chamber m in the roof. Air for primary combustion may be heated in flues v beneath the hearth.
Patent GB-660564-A (GB)
Title: Improvements in fuel injection pumps particularly for internal combustion engines
IPC: F02M59/26
Filed: 1947-03-11
Abstract: 660,564. Fuel-injection pumps. ZELEZNY, A. March 11, 1947 [April 25, 1946], No. 6839 [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 12, 1947]. Class 102 (i). In a fuel-injection pump, the suction and spill ports 6, 7, are arranged co-axially and the head of the piston 3 is so shaped that on the suction stroke, the suction port 6 is opened before the spill port 7 so that reversal of flow in the spill port is prevented. The head of the piston may have a step 10 or be inclined as at 12.
Patent GB-811640-A (GB)
Title: Improvements in or relating to electric actuators for fluid flow control valves
Inventor: FRY JEREMY JOSEPH
IPC: F16K31/04
Filed: 1956-03-05
Abstract: 811,640. Electric motor driving arrangements. ROTORK ENGINEERING CO. Ltd. Feb. 1, 1957 [March 5, 1956], No. 6860/56. Class 35. [Also in Group XXIX] A two-part casing 10. houses a driving unit 13 comprising a reversible electric motor 14 and worm reduction gear, the motor having a horizontal shaft 30 which drives a vertical output shaft 16 through the reduction gear, the shaft 16 terminating in forks 18 that engage the spokes of a stop or gate valve operating wheel. The casing is supported by a column 25 which is adjustably clamped upon one of the pipes leading to the valve casing and the unit 13 is mounted within the casing 10 so that it is free to swing about the shaft 16. The motor 14 is provided with a speed governor 39, which alternatively may be included in the drive; in the latter case the governor may be replaced by a slipping clutch. Any resistance encountered by the motor in closing the valve will cause a reaction in the unit 13 tending to turn it in the opposite direction; this reaction is controlled by a spring 42 connected between a bracket 36 under the motor 14 and an adjusting screw in the casing. When the valve is closed or an obstruction occurs the reaction increases and turns the unit 13 against the spring 42 until a micro-switch 51 on the bracket 36 contacts a fixed pillar 49 in the casing and de-energizes the motor. The coupling between the shaft 16 and forks 18 includes a manually adjustable coupling which either provides for direct connection therebetween or for one revolution of lost motion so that the momentum built up by the driving unit 13 ensures the valve is loosened prior to being opened. The motor is switched off when the valve is opened by a micro-switch on the gear-box actuated by a cam 62 driven through a clock-type reduction gear 63, 64, 65 and 67 from the forks 18 by a clip 69 and a spindle 68 passing inside the shaft 16. The valve may be manually operated upon disconnecting the manually adjustable coupling. Additional switches 51, only one of which is shown, and another spring 42 may be provided so that the safety cut-out functions in both directions of valve travel.
Patent GB-203276-A (GB)
Title: Process for the preparation of pure gelatine or glue
IPC: C09H3/02
Filed: 1923-03-09
Abstract: The raw material such as sinews, bones, or split leather scrap is treated with an aqueous solution of chlorine dioxide, washed with cold water, and finally treated with warm water for the extraction of gelatine or glue.
Patent GB-560219-A (GB)
Title: Improvements in moving coil loud-speakers and microphones and like electro-acoustic apparatus
IPC: H04R9/02
Filed: 1943-05-04
Abstract: 560,219. Loud-speakers and microphones. ALLAN, W. H. May 4, 1943, No. 6964. [Class 40 (iv)] In a moving-coil loud-speaker, microphone or like electro-acoustic apparatus the length of the moving-coil 9 is so related to that of the gap between the pole-pieces that during normal operation the coil remains wholly in the gap, so remaining in a uniform magnetic field, and the pole-pieces 5, 6 are so shaped that their cross-section is greatest at the boundary of the gap and diminishes away from it.
Patent GB-288793-A (GB)
Title: Improvements in or relating to the supply of auxiliary air to internal combustion engines
IPC: F02D9/00
Filed: 1927-03-14
Abstract: 288,793. Moss, A. H., and Moss, H. H. March 14, 1927. Induction pipes, extra air valves and fittings for. - In devices for admitting extra air to the induction pipe of the kind comprising a valve adapted to be closed by suction against the action of a spring, means are provided for dissipating at, will the suction tending to close the valve. As shown, the air inlet ports 6 are formed in an extension 2 of a cylinder 1 and are controlled by a valve 5 carried by a piston 4 working in the cylinder, the valve being opened by a spring 10 and closed by suction transmitted through the hollow stem of the valve and one or more ducts 8 opening to the space beneath the piston. The extension 2 may be fitted directly into the induction pipe or may be connected thereto through a suitable fitting e.g. of the kind described in Specification 223,182. A spring-loaded Bowdenoperated stop 11 limits the opening of the valve. The end of the valve 5 is extended by a hollow portion of reduced diameter, e.g. by an adjustable tube 14, of such a length that the mouth of the hollow portion extends beyond the ports 6 when the valve is partly opened but, when-the valve is fully open, is raised adjacent to or above the ports 6. When the valve is thus fully open, the suction in the induction pipe, even if at a maximum, is ineffective to close the valve, being dissipated by air entering through the ports 6, and the device may be used as an air brake with closed throttle. In modifications, the suction tending to close the valve is dissipated through a port 17 in the wall of the cylinder 1 or in the extension 2 and uncovered when the valve is opened a predetermined amount. The port 17 is normally closed by means independent of the valve, e.g. by a spring clip and may be used either as an alternative or as an addition to the extension of the valve passage.
Patent GB-1024555-A (GB)
Title: Improvements in and relating to laundry apparatus
IPC: D06F13/08
Filed: 1963-02-21
Abstract: 1,024,555. Washing machines. PHILCO CORPORATION. Feb. 21, 1963 [Feb. 21, 1962; March 2, 1962], No. 7006/63. Heading D1A. A washing machine comprises a wobble-type agitator 31 centrally disposed within a tube 21 which has a rotary basket 23 for spin-drying. The agitator 31 is driven by an inclined shaft portion 32 through a wobble member 33 which is coupled to the agitator by arms 53 which extend through openings 55 in a structure 54 fixed to basket 23 and serving to support a central column 57, 58 and enclosing the wobble-plate mechanism. A driving shaft 27 for the wobble mechanism is arranged within a hollow shaft 26 for the basket 23, these shafts being driven by a motor through mechanism such as described in Specification 1,010,560. Agitator 31 includes an undulating and flexible vane  64 and a central opening 68 through which a downward flow of liquid is induced by co-operation with the portion 58 of column 57, 58. Other forms of agitator construction are described such as in Specification 900, 535 together with modified forms of the central structure.
Patent GB-933924-A (GB)
Title: Detachable cooler for a tubular structure
IPC: H01J19/74
Filed: 1960-02-29
Abstract: 933,924. Cooling discharge apparatus. EITEL-McCULLOUGH Inc. Feb. 29, 1960 [April 24, 1959], No. 7019/60. Class 39 (1). A detachable cooling assembly for a travelling-wave tube or other electron-discharge tube comprises a tapered slotted member 38, Fig. 2, wedged between the discharge tube and a tapered sleeve 36 carrying cooling fins 33, the sleeve 36 and member 38 being relatively movable for example by a nut 41 on a threaded portion of the member 38. The cooling assembly is for the collector or anode or gun anode. The brass member 38 has longitudinal slots 39, the tube wall is of molybdenum and the fin structure is of aluminium. Forced air cooling is transverse to disc fins 33 or longitudinal cooling of longitudinal fins is used. The cooling assembly can be removed to allow a focusing magnet to be mounted on the tube then member 38 is put on to abut the magnet structure and the cooling fin-sleeve assembly and nut 41 are put on. The helix 18 is adjacent a collector 23 with an inclined hole and an impedance matching section 27 with tapered inner and outer conductors has a dielectric seal 28. The connector of a coaxial line feeder is screwed on to the free end of threaded portion 40.
Patent GB-609143-A (GB)
Title: Improvements in and relating to the trip mechanism of automatic circuit breakers andsimilar electrical switchgear
IPC: H01H71/10
Filed: 1946-03-06
Abstract: 609,143. Automatic circuit-breakers. CRABTREE & CO., Ltd., J. A., BESAG, E., HILL, W. E., and WINTLE, T. D. G. March 6, 1946, No. 7040. [Class 38 (v)] A circuit-breaker, which may be adjusted for hand or automatic reclosing, comprises two blades g, g<1> carrying normally closed contacts h and having between them the upper ends of a stop arm f rotatably mounted and a trip arm c slidably and rotatably mounted on the extended spindle d of a spring-loaded push-button e. On overload, a thermal element (not shown) moves a bar a longitudinally so that a lug a<1> engages the lower part c<3> of the trip arm, rotating it about the spindle d. When set for hand-reclosing, as shown in Figs. 1, 3, as soon as the head c<2> of the trip arm comes out of engagement with a slot g<2> in the blade g<1>, a spring k bearing on the press-button e moves the arms c, f so that the head c<2> enters the constriction between g<3> and g<1> forcing the contacts open. For reclosing, the button e is depressed to carry back the arm f while the arm c is held in the tripped position until arm f enters between the blades g, g<1> at w, after which the shoulder d<1> on the spindle d engages the arm c carrying it back until it is forced into the slot g<2> by blade-spring m<2>. As the button is released the stronger spring k carries the arm f Back to the arm c allowing the contacts to close. For automatic reclosing the button e is pushed in and turned through 180 degrees so that the rib l engages the bearing i and renders the spring k inoperative. In this position the catch c<2> is lifted just clear of the end of the slot g<2> and trip bar a rotates the arm c to bear against the arm g to open the contacts directly, and allows them to reclose as soon as the overload is removed. To avoid retarded " automatic " tripping, the shaft on which the trip arms are mounted is eccentric at v so that compensation is obtained for the gap between the arm c and the blade g. The contacts can be opened manually at any time by depressing the button e so that the stop arm f is forced between the blades at w. Initial adjustment is made by a screw p extending through the cover i to bear on the trough of the blade g<1>.
Patent GB-525966-A (GB)
Title: Method of and means for making stitched open work
IPC: D05B73/12
Filed: 1939-03-03
Abstract: 525,966. Sewing-machines. MAIDEN FORM BRASSIERE CO, Inc. March 3, 1939, No. 7046. Convention date, March 10, 1938. [Class 112] False hem-stitching.-Loose stitches are formed by making the concatenations around a finger 24 lying beneath both plies of fabric and carried by the spool case 12 of the shuttle. The work is transferred to a two-needle machine in which the fabric edges are separated by a blade 53, folded back and secured by lines 56, 57 of plain stitching.
Patent GB-1490960-A (GB)
Title: Electrolytic cell and method of electrorefining or electrowinning a metal using a circulating electrolyte
IPC: C25C1/12
Filed: 1976-02-23
Abstract: 1490960 Electrowinning metals MITSUI MINING & SMELTING CO Ltd 23 Feb 1976 [11 sept 1975] 07098/76 Heading C7B Metal is electrowon using a rectangular cell in which incoming electrolyte is divided into two equal streams and supplied at the opposite upper (or lower) corners of one long side of the cell and electrolyte discharge is via a single outlet in the centre of the lower (or upper) surface of the other long side of the cell. Cu obtained by the process is less modular than is usual. Electrolyte flowrates of above 30 l/min at a c.d. of greater than 250 A/m<SP>2</SP> are referred to.
Patent GB-228027-A (GB)
Title: Improvements in reels for use in angling
IPC: A01K89/015
Filed: 1924-03-20
Abstract: 228,027. Hardy Bros. (Alnwick), Ltd., and Hardy, L. R. March 20, 1924. Reels and winches, rod.-In a fishing reel provided with a pivoted finger lever capable of assuming three different positions so that the reel may run free, under the ordinarv check or under the influence of a comparatively strong brake, an auxiliary finger lever g is provided whereby the main finger lever a is positively held in two positions corresponding to the free and heavily braked condition of the reel, and is released by manual operation of the lever a to allow the latter to assume the normal position in which the reel runs under the influence of the usual check. In the construction described, the finger lever a carries the pivoted check c and is connected by a spring h<1> to a lever h provided with a brake block h<2>. The auxiliary lever g is controlled by a spring g<3> and is adapted to engage the notches al, a<2> in the lever a. Manual operation of the finger lever a disengages the lever g and the parts return to normal position under the action of the springs a<3>, g<3>.
Patent GB-140080-A (GB)
Title: Improvements in or relating to controlling devices for flying machines
IPC: B64C9/00
Filed: 1920-03-09
Abstract: 140,080. Curtiss Aeroplane & Motor Corporation, (Assignees of Curtiss, G. H.). Jan. 13, 1916, [Convention date]. Steering and balancing; planes, construction of.- For controlling the tilting of an aeroplane about its vertical and transverse axes, a pair of coating control surfaces is arranged at one and the same side of the axis about which they are designed to exert a couple, the two surfaces being independently movable by the pilot. The surfaces of each pair are respectively balanced and unbalanced, the balanced surface being the larger, and both turn about fixed axes. Fig. 3 shows the empennage of a flying-boat having fixed surfaces 72, 71 to the rear edges of which are pivoted unbalanced elevators 73 and an unbalanced rudder 80. The lower end of the rudder 80 is extended forward as shown and acts as a water rudder when the machine is afloat. Pivoted on a transverse axis above the fin 71 is a balanced elevator 74 forming the main control element, the elevators 73 being used mainly for altering the trim of the machine for which purpose they are operated by a lever provided with a locking-device. In addition to the rudder 80 and capable of operation independently of it are two balanced rudders 81 arranged as shown between the surfaces 72, 74. According to the Specification as open to inspection under Sect. 91 (3) (a) the invention may be applied to the lateral-balancing surfaces. This subject-matter does not appear in the Specification as accepted. Aerial machines without aerostats; propelling.- The invention is shown applied to a flying-boat having three superposed main planes and four tractor screws coupled to engines in streamlined casings arranged symmetrically on the central supporting-plane.
Patent GB-1199371-A (GB)
Title: Process for the Production of Road Surfaces.
Inventor: EGLOFF JOSEPH
IPC: E01C19/22
Filed: 1968-02-14
Abstract: 1,199,371. Wetting composition for road compacting devices. UNILEVER Ltd. 14 Feb., 1968 [15 Feb., 1967], No. 7194/68. Heading C5D. [Also in Division E1] A wetting agent for road compacting devices comprises an aqueous solution containing a surface-active agent, a solubilizing agent, an alkaline builder salt, and preferably also an emulsifying agent. The surface-active agent may be an anionic or non-ionic compound, or a mixture thereof-e.g. the water-soluble salts of organic reaction products of sulphuric acid or phosphoric acid and the non-ionic ethylene oxide and/or propylene oxide addition products such as alkylarylsulphonates, alkylbenzenesulphonates, alkanesulphonates, alkenesulphonates, alkylsulphates, alkyl ether sulphates, phosphoric acid esters of alkyl alcohols or alkylene oxide adducts, alkylphenol polyglycol ethers, and fatty alcohol polyglycol ethers. The solubilizing agents may be salts of shortchain alkylbenzenesulphonates or alkyl sulphates, such as toluenesulphonates, xylenesulphonates, ethylbenzenesulphonates, isopropylbenzenesulphonates, amyl sulphates, and hexyl sulphates. Alternatively, phosphoric acid esters with a similar action or urea may be used. The builder salts preferred are salts of polyphosphoric acid, e.g. sodium and potassium pyrophosphates and tripolyphosphates.
Patent GB-704499-A (GB)
Title: Improvements in or relating to microscope objectives employing catadioptric systems comprising a concave mirror and a cemented surface
IPC: G02B21/04
Filed: 1952-03-20
Abstract: 704,499. Microscope objectives. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. March 20, 1952 [March 22, 1951], No. 7273/52. Class 97(1) In a microscope objective comprising a spherical concave reflecting surface and a spherical convex reflecting surface both concave towards the short conjugate focus and spread apart by a medium of refractive index greater than 1, a cemented surface is interposed between the reflecting surfaces separating media differing in refractive index by at least .0001 and at most .01, so that light rays emanating from an axial light point traverse a first refracting surface and said cemented surface are reflected at the concave reflecting surface back through the cemented surface to be reflected by the convex reflecting surface through the cemented surface for a third time, through a central aperture in the concave reflecting surface and traversing a second refractory surface .facing the image, the maximum angle of incidence of the rays when incident a second time on the cemented surface being greater than 36 degrees to the cemented surface providing corrections of the residual spherical aberration. The objective shown in Fig. 3 comprises lenses III, IV, V and VI of glass, the surface 4 forming the convex reflector having a central fully-reflecting zone surrounded by an annular zone which is 50 per cent reflecting and the cemented surface 5 between the reflector 4 and the concave reflector being plane. In a modification the cemented surface is spherical and concave to the object O. Data are given for one example of each of these modifications. Specifications 637,645, 638,975 and 688,067 are referred to.
Patent GB-929753-A (GB)
Title: A travelling self-recording straight-edge
IPC: G01C7/04
Filed: 1960-03-02
Abstract: 929,753. Gauging departure from standard form. L. S. DODD, and J. L. SHELBOURN. Feb. 28, 1961 [March 2, 1960], No. 7304/60. Class 106 (2). Apparatus for the continuous measurement of the irregularities of a surface equivalent to the departure from a straight edge comprises a frame a supported on three castoring wheels b<SP>1</SP>, b<SP>11</SP> and having a fourth castoring wheel b<SP>111</SP> free to move vertically and operate a lever arm c one end of which moves over a scale n. The arm c also carries a ball-point pen (not shown) which moves over a record sheet driven through gearing from a further wheel g. The arm c is formed in two parts which are relatively adjustable to zeroize the reading. Damping devices (also not shown) prevent vibration of the lever arm c. A cover-plate o houses the recording and indicating mechanism so that the apparatus is waterproof. Provision may be made for moving the recording mechanism to the position indicated by broken lines, and the device may have the various wheels turned through 90 degrees and locked, to take measurements perpendicularly to the axis of the apparatus.