baber/WOPTO huggingface dataset:
Patent GB-736715-A (GB)
Title: Improvements in or relating to the production of hydroperoxides
IPC: C07C409/08
Filed: 1953-04-01
Abstract: Hydroperoxides of substituted aromatic hydrocarbons containing at least one alkyl or cycloalkyl group or a fused hydrogenated cyclic nucleus, the group or nucleus having a secondary or tertiary carbon atom directly attached to the aromatic nucleus are made by treating the hydrocarbon in the liquid phase with oxygen at elevated temperature in the presence of a minor proportion of an ester of a b -ketonic carboxylic acid.  Specified hydrocarbons are ethylbenzene, cumene, sec. butylbenzene, p-cymene, di-isopropylbenzenes, cyclohexylbenzene and tetrahydronaphthalene.  Esters are preferably of formula R1-CO-CHR11-COO-R in which R is an aliphatic radicle, R1 is an aliphatic, cycloaliphatic, aromatic or heterocyclic radicle or the group R111-O-CO where R111 is an aliphatic radicle and R11 is H, an alkyl radicle or acyl group or with R1 is a divalent aliphatic chain forming with the CO radicle an iso-cyclic chain or with R a divalent aliphatic chain forming with the COO group a heterocyclic chain.  Esters specified are ethyl acetoacetate, isonitrosoacetoacetate, benzoyl acetate, furylacetate, oxalacetate and benzoylacetoacetate, acetobutyrolactone, diethyl ester of acetonedicarboxylic acid and 2-carbethoxycyclopentanone.  Ethyl esters are preferred but others, e.g. methyl and propyl, may be used. 0.1-0.35 per cent of ester based on weight of hydrocarbon in general gives good results.  Other oxidation initiators and/or catalysts may be used.  In experiments (1) cumene is oxidized at temperatures of 110 DEG , 115 DEG  and 120 DEG  C. in the presence of certain of the specified esters; (2) ethylbenzene is oxidized at 15 DEG  C. in the presence of ethyl benzoylacetate; and (3) p-cymene is oxidized at 120 DEG  C. in the presence of ethylacetoacetate, hydroperoxides being obtained in each instance comparisons of yields obtained in the presence and absence of the appropriate ester for different reaction times being given in tables.
Patent GB-559813-A (GB)
Title: Improvements in the automatic control of a variable condition
IPC: G05D23/12
Filed: 1942-07-01
Abstract: 559,813. Automatic control systems for variable conditions. NEGRETTI, H. N., NEGRETTI, P. E., and IBBOTT, H. W. July 1, 1942, No. 9108. [Class 38 (iv)] Variables in general ; temperature.-A primary device 1 responsive to changes in a controlled condition exerts a force against a resistance, shown as springs 10, 11, through a mechanical linkage comprising a pivoted lever 9, rod 8, pivoted frame 6, rod 4 and pivoted frame 2. Movement of the frame 6 due to unbalance operates the contact 12 of a reversing switch for a motor 15 to correct a change in the condition. One or more secondary devices 16, 17 are adapted to alter the leverage of the linkage in accordance with changes in conditions to which they are responsive and which require to be taken into consideration in the control. These devices are connected to the linkage through bell crank levers 3, 5, 7 pivoted on axes inclined to the axes of the frames 2, 6 so that they do not react with the force transmitted through the linkage. A cam 25 may be adapted to remove the pressure of spring 10 and a cam 17 may be arranged to vary one pressure or both. These cams may be actuated automatically or at will. The arrangement is suited for the regulation of the temperature of aircraft engines, the primary device being subject to the differential pressure set up by the passage of cooling air, other variable factors such as boost pressure cooling in temperature, altitude, supercharger gear, and pilots' will being imposed upon the control.
Patent GB-577055-A (GB)
Title: Improvement in air gages for internal dimensions
IPC: G01B13/10
Filed: 1944-05-12
Abstract: 577,055. Gauging-apparatus. NILESBEMENT-POND CO. May 12, 1944, No. 9114. Convention date, May 13, 1943. [Class 106 (ii)] A dimension gauge Gomprises a base 10, an arm 12 outstanding therefrom, a gauge head 13 mounted at the outer end of the arm, means 19 to supply fluid at constant pressure to the gauge, the fluid supply means terminating in oppositely disposed orifices 16 in the head 13, fluid pressure indicating means 23 in the arm .and a work-supporting carriage 25 movable on the base 10 on which a workpiece may be positioned and moved over the arm 12 and head 13 past the orifices 16. The head 13 is detachable in order that the gauge can be adapted to-measure various dimensions.
Patent GB-659931-A (GB)
Title: Improvements in chucks
IPC: B23B31/22
Filed: 1949-04-05
Abstract: 659,931. Chucks. WARING, A. April 5, 1949, No. 9198. [Class 83 (iii)] A chuck comprises an inner member or cage having radially-movable gripping rollers 4 which are forced inwardly by means of a cam ring 7 inserted and fixed in the bore of a sleeve 5 which is rotatably mounted on the cage, the cam ring being provided at the inner end thereof with a circumferential recess 8 having shoulders at the ends thereof which are engaged by a pin 10 on the body of the cage to limit the relative rotary movement of the cage and sleeve. The body of the cage has a cylindrical portion 2 for rotatably engaging the bore of the sleeve and a reduced upper portion 1 which with the sleeve forms an annular recess in which is housed a spiral spring 12 which normally urges the rollers 4 to the gripping position, the ends of the spring being received in slits formed in the edge of the sleeve and in the edge of the portion 1 respectively. The inner end of the chuck is closed by means of a screwed cap 15, and the outer end of the sleeve has an end wall 5a formed integrally therewith.
Patent GB-726709-A (GB)
Title: Improvements in vessels for high pressure fluids
Inventor: BREDTSCHNEIDER KURT EMIL BRUNO
IPC: F16K27/08
Filed: 1953-04-02
Abstract: 726,709. Closures for resisting fluid pressure. CRANE CO. April 2, 1953, No. 9205/53. Class 123 (1). [Also in Group XXIX] A closure for a high pressure vessel 66 consists of an annular outer member 72 having an internal flange 90, the member being secured to a rim flange 74 surrounding the opening in the vessel by bolts 76, and an inner member 82 disposed in the opening and having upstanding studs 86 which pass through holes in the flange 90 and by means of which the members can be drawn together. A sealing ring 96, made for example of soft steel, iron, copper or other soft metal is located in the groove formed between a bevelled bearing surface 98 on the outer member and a convex bearing surface 94 on the inner member. To seal the vessel, the closure is placed in position and secured by nuts 78 on the bolts 76. Nuts 92 on the studs 86' are then tightened to expand ring 96 into sealing engagement with a bevelled bearing surface 70 formed about the edge of the opening. The shape of the ring 96 in its free state and that of the bearing surfaces 70 and 94 is such that only a line contact exists between them, moreover when the vessel is sealed the upper portion of the ring remains above the rim so that the tendency of the sealing surfaces to stick together when the vessel is unsealed is minimized. Modified means of securing the closure to the vessel and the application of the invention to the construction of pressure seal bonnet valves (see Group XXIX) are also described.
Patent GB-432992-A (GB)
Title: Improvements in or relating to television or like systems
IPC: H04N5/84
Filed: 1934-03-24
Abstract: 432,992. Television. FERNSEH AKT.- GES., Goerzallee, Zehlendorf, Berlin. March 24, 1934, No. 9236. Convention date, March À25, 1933. [Class 40 (iii)] The rate of exposure of an intermediate film is less than normal and the signals corresponding to the images are transmitted a plurality of times. The signals of complete images are transmitted at a normal rate, e.g. 25 pictures per second, by scanning each frame a plurality of times.
Patent GB-107591-A (GB)
Title: Improvements in or relating to Speedometers.
Inventor: SOULAT JEAN
IPC: G01P3/10
Filed: 1917-06-27
Abstract: 107,591. Soulat, J. Oct. 30, 1915, [Convention date]. Periodic-counter speed indicators. - Motion is communicated from a shaft f through toothed gearing to two spring-barrels c, b containing friction springs, on the arbor of the second of which is secured an escape wheel b<0> governed by a balance b<5>. Also secured to the arbor b<1> are two ratchet wheels b<2>, b<3> engaged by spring-controlled levers d<2>, d<3>, the teeth of the wheels being so spaced that one and a half seconds elapse during the progress of a lever along a tooth. The levers either differ in length sufficiently, or the wheels are so arranged with regard to one another that the times of the fall of the levers from the teeth of the wheels b<2>, b<3> differ by half a second. Secured to the arbor c' of the barrel c are arms c <1>, c<2> which form a four point star and are arranged in the planes of the levers d<2>, d<3>. Also mounted on the arbor c<1> are cams c<4>, c<5> which control spring-depressed levers e<4>, e<5>, pivoted at e, and pawl-levers i<40>, i<50>. Mounted in the levers e<4>, e<5> are the shafts of pairs of wheels h<1>, h<2>; h<3>, h<4>, the wheels h<1>, h<3> being driven from the shaft f and the wheels h<2>, h<4> being provided with ratchet teeth to engage similarly toothed wheels j<1>, j<2> driving the indicating hand. The arrangement of the cams c<1>, c<5> with regard to the other timeoperated parts is such that the wheels j<1>, j<2> are alternately driven for one second, then held by the pawls i<40>, i<50> for a second and a half, during which time the levers e<4>, e<5> carrying the driving-wheels have been raised to the disengaged position, and finally released by the pawls and returned during half a second towards the starting point by spiral springs attached to wheels j<10>, j<20> secured to the wheels j<1>, j<2>. Pins j<100>, j<200> serve as zero stops, and pins j<1000> and j<2000> on the wheels j<1>, j<2> are adapted to engage pins m<1> on a disk m secured to the shaft of the indicating-hand. Braking- fans n may be driven by the wheels j<1>, j<2>. Means for stopping the clockwork when the device is idle comprise a three-armed lever p, one arm p<4> of which bears a spring p<40> adapted to engage the balance b<5> when an arm of the lever p has fallen into a notch m<0> in the disk m at the zero point and a third arm p' has fallen into one of a series of notches in a disk b<10> on the arbor b<1>, such notches being arranged so that one of the ratchet wheels h<2>, h<4> is always in engagement with one of the wheels j<1>, j<2> when the arm p<3> has fallen into a notch.
Patent GB-878698-A (GB)
Title: Improvements in or relating to inflation devices
Inventor: MARSH JOHN OLIVER
IPC: B64D25/14
Filed: 1959-03-18
Abstract: 878,698. Injectors. KIDDE CO. Ltd., WALTER. March 16, 1960 [March 18, 1959; Oct. 22, 1959], Nos. 9356/59 and 35795/59. Class 71. An aspirating device for use in assisting the inflation of large inflatable bags or dinghies comprising a moulded plastic body of hollow rectangular section lying inside and parallel to a wall of the inflation bag but having its entry sections twisted through a right angle where it is clamped to the said wall by the flange 3, gasket 8, ring 5 and screws 6 held to the flange 3 by the inserts 2. The rubber flap valve 7 forms the gasket 8 and is normally held just closed against the ambient atmospheric pressure by a weak leaf spring 10. Sets of compressed gas from a storage container enter the body 1 by way of the hollow bolt 20, tube 21 and the twin nozzles 23, the low pressure created by the diffused jets moving through the Venturi shaped body 1 opening the flap valve 7 and drawing in further air, the pressure thus created at the outlet of the body 1 opening the hinged flap valve 12 against the action of the spring 18. As the inflation bag fills and the pressure in the storage cylinder falls off, the valve 12 closes, the pressure in the body 1 rises, closing the flap valve 7 and reopening the valve 12 whence the inflation bag is topped up to just above atmospheric pressure by the residual gas in the storage cylinder ; at this point the valve 12 finally closes. In a modification the valve 12 may be more positively operated by a compressed gas, spring opposed, piston in cylinder, operating the valve 12 through levers, the spring 18 being retained.
Patent GB-1346394-A (GB)
Title: Rock breaking equipment
IPC: E21D9/10
Filed: 1972-02-29
Abstract: 1346394 Rotary hammers ANGLO-TRANSVAAL CONSOLIDATED INVESTMENT CO Ltd 29 Feb 1972 [10 March 1971] 9370/72 Heading B4C [Also in Division E1] In rock breaking equipment in which at least one hammer is pivotally secured to a rotor, the pivot between the or each of at least some of the hammers and the rotor is offset from the axis of rotation of the rotor and has its axis inclined at an angle of more than 45 degrees to a plane at right angles to said axis of the rotor. Preferably a group of hammers or a number of groups of hammers are spaced apart along the length of the rotor, the hammers of a group being so mounted on the rotor as to all follow the same path on rotation of the rotor. At least the outermost hammers of groups of hammers mounted on the rotor may be inclined as mirror images of each other. The rotor may comprise a casting or two axially connected sub-assemblies made as mirror images of each other. Specification 1,237,713 is referred to.
Patent GB-708990-A (GB)
Title: Farm and roadside sprayer
IPC: B05B15/652
Filed: 1952-04-15
Abstract: 708,990. Crop sprayers ; spray-producers. HANSON, H. C. April 15, 1952, No. 9441/52. Class 69 (3) A crop and roadside sprayer comprises a wheeled vehicle carrying a manually adjustable tubular boom 17 clamped to a tubular support 33, which is adjustably mounted on a fixed post 38. A friction clamp 30 on the boom carries a two-piece socket 31 which grips a ball projection on the support. The boom can be adjusted to any angular position, and its height varied by raising the support relative to the post, and securing the support by a pin 36 which engages one of a series of vertically spaced holes in the post and support. Spray liquid is pumped to the boom from a tank 27 and passes through a valve 23 to one or more spraying nozzles 21. The latter may include a jet 40, Fig. 5, having an axial passage 45 leading to a V-shaped slot 46 to provide a wide angle sheet type spray. Two such jets may be adjustably mounted in a T-fitting 47, Fig. 4, to direct the spray in opposite directions. The spray may be arranged in planes parallel, or at right angles, to the boom.
Patent GB-216991-A (GB)
Title: Improvements in or relating to label holders
IPC: G09F3/18
Filed: 1923-04-06
Abstract: 216,991. Terry, C. April 6, 1923. Clips, pivoted-jaw.-A device for securing labels to railway wagons and for like purposes consists of a plate with projections which penetrate the label and engage with a fastening lever pivoted to the plate. The lever c is pivoted on an elastic rod b passing through projections a<1> on the plate a, and is shaped as shown with shoulders c<2> engaging with the projections a<2>. These may be pressed up from the body of the plate a and are formed with recesses a<5> to hold the lever c against the label.
Patent GB-149934-A (GB)
Title: Improvements in friction drive mechanism
IPC: G03B1/40
Filed: 1920-04-01
Abstract: 149,934. PathÚ Cinema, Anciens Etablissements PathÚ FrÞres, Robatel, J., and Buffaud et Cie, T. Aug. 21, 1919, [Convention date]. Apparatus for making films.- Friction gearing is used to drive a fly-wheel 1 inside a tight casing 4 at a uniform rate of about two revolutions per hour. The apparatus is used for making kinematograph films, collodion being spread on the polished periphery of the fly-wheel, where it becomes sufficiently dry to be detached as a uniform sheet. A rim or crown 5 on the wheel 1 is engaged by two or more friction-gears 6, 6<1>, the spindles of which pass through stuffing-boxes in the casing. In the arrangement shown, two inner gears 6 are pulled against the crown 5 by a link 7 pivoted to the ends of two levers 9, 10, carrying weights 11 at their outer ends. The fulcrums of these levers act upon links 8, which press two outer gears 6' inwards against the crown 5. The outer gears 6<1> are driven through worm gearing from a spindle 16, which is in turn driven through worm-gearing 15, 14 from a spindle 13 driven from a pulley 12.
Patent GB-1399004-A (GB)
Title: Closure and or identifying devices
IPC: G09F3/06
Filed: 1972-03-01
Abstract: 1399004 Label; bag closure F E MILLER 24 May 1973 [1 March 1972] 9500/72 Headings B8F B8C and B8K [Also in Division E2] A closure and/or indentification device of flexible synthetic plastics sheet material comprises a planar attachment portion 1 including slits defining tabs 3 which are resiliently bendable to define an aperture surrounded by a ring of the material, the tabs being bendable out of the general plane of the ring of material and can engage around and grip an element to be closed and/or identified. The slits may radiate from an aperture (4), Fig. 2 (not shown). An information bearing portion 2 is hinged to the attachment portion. The device may be formed by injection moulding or stamping, and can be used to label rope, wire or cable, Fig. 4 (not shown). It can also be used to close the gathered neck of a bag, Fig. 5 (not shown).
Patent GB-270073-A (GB)
Title: Improvements in or relating to sound amplifiers or loud speakers
IPC: H04R7/08
Filed: 1926-04-12
Abstract: 270,073. Harrison, C. N. April 12, 1926. Sound magnifying and directing appliances. - An attachment adapted to be mounted in the horn of a sound amplifier or loud-speaker, comprises an inner diaphragm 1 having a large central perforation 3 and an outer diaphragm 2 provided with perforations 4 around its periphery, the diaphragms being spaced apart by a rubber ring 5 and preferably secured in an annular recess 6 in its outer end of the horn 7 by a clamping ring 8. The diaphragm 2 may be provided with a convex centre portion 9, whilst the diaphragm 1 may be provided with a number of smaller perforations around its centre in place of the large perforation 3. Two or more perforated diaphragms may be provided in addition to the outer diaphragm, the perforations in any adjacent diaphragms being out of alignment. According to the Provisional Specification the outer diaphragm may also be provided with additional perforations which are not coincident with those in the inner diaphragm.
Patent GB-610568-A (GB)
Title: Improvements in or relating to portable vibrating screeds
IPC: E01C19/38
Filed: 1946-03-28
Abstract: 610,568. Vibrating apparatus for roads. JOHNSON (MACHINERY), Ltd., C. H., and HARTLEY, J. A. March 28, 1946, No. 9595. [Class 107] Rollers d are so mounted on the trailing edge of a portable vibrating screed b that they are normally clear of the road forms on which the screed rests, but on backward tilting of the screed they engage the forms so allowing ease in moving the screed without disturbing the treated surface. The inner ends d' of the rollers are rounded.
Patent GB-1391904-A (GB)
Title: Disposable containers
IPC: A61J9/00
Filed: 1971-04-16
Abstract: 1391904  Feeding bottles R J ECKHOLM 11 July 1972 [16 April 1971] 9597/71 Heading A5X [Also in Division B8] A disposable container, for containing glue or liquid medicament -or in particular for use as a feeding bottle, comprises a housing 12 having an open upper portion which is smaller than an open lower portion thereof, the upper portion being capable of having a closure secured thereto, and a collapsible bag 14 having an open upper end fixed, independently of any such closure, to the upper half of housing 12 along an uninterrupted peripheral line like containers being nestable when the bags 14 are collapsed upwards in their respective housings. A peelable seal is preferably attached over the open end of the housing and is removed prior to filling the bag. For use as a glue container a spreading nozzle may be provided, and for use as a feeding bottle a nipple 22 has a resilient base 20 applied over a bead 16, or the nipple may be attached by a cap screwed on to the upper portion of the housing. The bag may be heat sealed, or secured by adhesives, to the upper or lower surface of the upper housing portion defining the upper opening. Alternatively the bag may be integrally formed with the housing for example by moulding the housing with a flat top wall and then thermo-forming the bag out of the top wall. The bag may be formed to collapse like a bellows and may be made with a tendency to assume its collapsed condition, or its expanded condition or an intermediate condition. In a further embodiment, the open end (68) of the bag (66), Figures 9, 10 (not shown) is attached to the inside of the housing (62) about half-way up the height thereof, so that when like containers are collapsed the upper housing portion of one container enters the upwardly-collapsed bag of the container above it. Like containers may be nested with their bags lightly adhered to a seal over the upper opening of the container immediately below to draw the bag to its expanded condition when a container is taken for use. The upward taper of the housing may be smooth or in steps.
Patent GB-1082586-A (GB)
Title: Converter for carrying out basic-oxygen processes
IPC: C21C5/46
Filed: 1966-03-07
Abstract: 1,082,586. Metallurgical converters. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. March 7, 1966 [March 8, 1965], No. 9783/66. Heading F4B. The jacket of a converter, for basic oxygen processes, is composed of individual segments A to F each of which is made up of pipes, with coolant entering each segment through a duct 4 and being then forced to flow to a horizontal pipe furthest from said duct 4 and then through the remaining horizontal pipes of the segment in succession to an outlet duct 5. This mode of construction allows efficient but variable cooling of the converter jacket so as to counteract the varying temperatures over its surface and so reduce uneven wear of the refractory lining.
Patent GB-435819-A (GB)
Title: Improvements in or relating to machines for the production of hollow bodies, particularly bottles, from paper or the like material
IPC: B31B3/00
Filed: 1934-03-29
Abstract: 435,819. Making paper bottles &c. BERLINER MASCHINENBAU-AKT.-GES. VORM L. SCHWARTZKOPFF, 23, Chausseestrasse, and FRANZ, A., 40, Achtermannstrasse, Pankow, both in Berlin. March 29, 1934, No. 9920. [Class 18] In a machine for the production of bottles &c. from tubular paper &c. blanks, the latter are worked up in moulds or holders 1 which are conveyed step by step to successive working positions I ... IV by a pair of chains 3 to which plates 5 supporting one or more moulds are secured resiliently by spaced angle brackets 4 on the chains and bolts 6, the latter carrying rubber rings 7 fitting in holes in the said plates. The moulds are guided by a groove in the table 2 of the machine, and the plates are provided with bushes 8 adapted to be engaged at the different working stages by centring pins 9. Movement of the chains is effected by a rotating cam 14 which engages rollers 13 on a wheel 11 secured to the shaft 12 of one of the chain wheels 10.