baber/WOPTO huggingface dataset:
Patent GB-746050-A (GB)
Title: Fuel control system for turbine engines, particularly engines utilizing afterburning
IPC: F02K1/16
Filed: 1953-06-04
Abstract: 746,050. Centrifugal pumps; jet propulsion plant. BENDIX AVIATION CORPORATION. June 4, 1953 [July 28, 1952], No. 15473/53. Classes 110(1) and 110(3) [Also in Group XXIX] In a re-heat fuel system for gas turbines' in which fuel is supplied by a centrifugal pump 36 driven by an air turbine 39 supplied by a compressor 14 driven by the main turbine 15, the air supply to the turbine 39 is controlled by a throttle member such as the valve 53 itself controlled by a pilot valve 59 responsive to the pressure rise across the compressor 14. The re-heat burners 44 are supplied by the pump 36 through a pipe 41 and the nozzle chamber 51 of the turbine 39 is supplied with air from the compressor 14 through a pipe 49. The inlet of the chamber 51 is controlled by the valve 53 on the end of an actuating bellows 54 to the inside of which air taker from the compressor discharge is admitted by a pipe 57 controlled by a valve 59. The valve 59 is urged by a spring 61 against a piston 60 subject to compressor dischargethrough the pipe 57 and a passage 65 and to compressor inlet pressure through a pipe 67. The piston'60 is rigidly connected with a diaphragm 68 responsive through passages 70, 74 containing restrictions to the pressure drop across a metering restriction 42 in the pipe 41. The. pressure drop due to the varying fuel flow through the restriction 42 is thus balanced against the pressure rise across the compressor and the valve 59 is positioned by the net force acting on the piston 60 and the diaphragm. A dash-pot action is provided by a restricted by-pass 76 across the diaphragm 68. A further stabilizing action is provided by allowing a certain amount of air from the nozzle chamber 51 to bleed into the bellows 54 through a restricted passage 78 on opening a solenoid operated valve 83. A "bullet" valve 19 in the end of the tail pipe 17 is retracted during afterburning by a servopiston 21 controlled by a valve 23 operated by a solenoid 25 The solenoid 25 is energized through an electronic amplifier 28 responsive to the temperature in the tail pipe as sensed by thermocouples 29, 30. The amplifier 28 is connected in a circuit 46, 47, controlled by a starting switch 48 and including also the solenoid 84 which opens the valve 83, an igniting device' 33, and a solenoid 45 which opens a cut-off valve 45 in the supply pipe 41. Specifications 708,732 and 733,356 are referred to:
Patent GB-888311-A (GB)
Title: Fluorocarbon acrylamides
IPC: C08F20/58
Filed: 1958-05-14
Abstract: The invention comprises polymers of N-perfluorocarbon sulphonyl acrylamides represented by the formula <FORM:0888311/IV (a)/1> wherein Rf is a perfluorocarbon group, which may be interrupted by oxygen or nitrogen atoms, containing 4 to 18 fully fluorinated carbon atoms, R is hydrogen or an alkyl radical containing 1 to 6 carbon atoms and R1 is hydrogen or a methyl radical (see Group IV(b)).  The polymers may be prepared by bulk, solution and emulsion methods using such free radical initiators as benzoyl and dicumyl peroxides. Representative of the acrylamides specified are N-perfluorooctanesulphonyl acrylamide, N-methyl - N - perfluoro(4 - methylcyclohexane) sulphonyl acrylamide, N-perfluorododecane sulphonyl methacrylamide and N-(n-hexyl), N-perfluorooctadecanesulphonyl acrylamide copolymers may be prepared from the substituted acrylamides of the invention alone or together with other polymerizable monomers containing an ethylenic linkage, e.g. maleic anhydride, acrylonitrile, vinyl chloride, vinyl acetate, vinyl silicones, styrene, methyl acrylate, methyl methacrylate, ethylene and isoprene and the halogenated derivatives thereof. Carbon black and zinc oxide may be incorporated in the polymeric materials. In examples: N-methyl, N-perfluorooctane sulphonyl acrylamide is bulk polymerized using acetyl peroxide as catalyst (7) and N-ethyl, N-perfluorooctane sulphonyl acrylamide is polymerized in aqueous methanol using potassium persulphate as catalyst.  The products are employed as solutions or emulsions to provide hydrophobic and oelophobic coatings or sizings on cloth (see Group VIII), paper, leather, glass, ceramics, stone and metals.ALSO:The invention comprises N-fluorocarbon sulphonyl acrylamides represented by the formula <FORM:0888311/IV (b)/1> wherein Rf is a saturated fluorocarbon structure, which may contain interrupting oxygen or nitrogen atoms, containing 4 to 18 fully fluorinated carbon atoms, R is hydrogen or an alkyl group containing 1 to 6 carbon atoms and R1 is hydrogen or a methyl radical.  Such compounds are polymerised to form homo- and copolymers (see Group IV(a)) and may be prepared by reacting the corresponding fluorocarbonsulphonamide or the sodium salt thereof with acrylyl or methacrylyl chloride.  Examples are furnished in which are prepared N-methyl, N-perfluorobutanesulphonyl acrylamide and methacrylamide, N-perfluorooactanesulphonyl acrylamide, N-n-propyl-N - perfluorooctanesulphonyl acrylamide, N-propyl-perfluorododecane-perfluorooctadecane- and -perfluoro(4-methylcyclohexane) sulphonyl acrylamides, N-n-butyl perfluorooctane sulphonyl acrylamide and N-methyl- and N-ethyl N-perfluorooctanesulphonyl acrylamides.
Patent GB-281180-A (GB)
Title: Improvement in and relating to pit and the like props and supports
IPC: E21D15/28
Filed: 1927-06-10
Abstract: 281,180. Tait, A. June 10, 1927. Mine props.-A prop is formed conically at the top to enter a two-part head 7 having non-movable internal wedges 6 to coact with the prop head to increase resistance on compression. The head is clamped by bands 8 and is fixed to a head-piece 10. Wedge heads may be provided at each end of the prop.
Patent GB-1390134-A (GB)
Title: Roll-type capacitor
IPC: H01G4/32
Filed: 1972-04-04
Abstract: 1390134 Capacitors W WESTERMANN 4 April 1972 [12 Oct 1971] 15510/72 Heading H1M In a wound capacitor the electrodes comprise metallized layers b on both surfaces of plastics foils a less than 6 Ám thick, the metallized layers being electrically interconnected, as shown by the end-contact layers c so that foils lie in the field-free space of the capacitor, the electrodes being separated by dielectric foils d. Foils a may be polyethylene terephthalate or polycarbonate. Foils d may be polypropylene. The metal layers may be applied by vapour deposition and the wound capacitor may have a metal-free plastics wrapping. In an alternative structure, a capacitor includes at least one electrode formed as above in combination with metal foil electrodes or simple metallized dielectric strips.
Patent GB-656856-A (GB)
Title: Improvements in tiltable dump cars
IPC: B61D9/14
Filed: 1948-06-09
Abstract: 656,856. Tip wagons. VIAL, J. June 9, 1948, No. 15597. Convention date, June 10 1947. [Class 103(iv)] A side-tipping railway wagon of the type including a roller adapted to ride up an inclined track adjacent to the railroad is characterized in that the roller is shiftably carried by the tiltable body of the wagon so as to be able to occupy either an active or a retracted position with respect to the inclined track and can be brought into the active position by control means operative as the car is running on the rails and irrespective of its speed. The wagon comprises a chassis 3 and a body 1 arranged for tipping thereon about a longitudinal pivot 2, one side 4 of the body being mounted on arms 8 pivoted at 10 to the body and connected by a link 5 selectively connected at 6 at its lower end to the chassis 3 so that tipping movement of the body 1 causes automatic opening of the side door 4. A bracket 14 is attached to the underside of the body on the' side remote from the pivot 2 to support a telescopically mounted roller 11 spring urged inwardly of the vehicle to a position within the width of the body and clear of the inside face of an inclined ramp 18 provided adjacent the rail track. To engage and extend the roller 11 the lower end of the ramp is provided with a cam rail 18" arranged to engage the inner rim of the roller 11 and draw it into line with the ramp 18. To permit the roller to byepass the ramp, the end of the cam rail 18<SP>11</SP> is pivoted on a vertical axis at its end adjacent the ramp and is controlled for horizontal swinging movement by a remote control device, (not shown). In an alternative arrangement, Fig. 7 (not shown), the roller 11 is pivoted on an arm mounted on the body on a longitudinal axis and spring urged into its retracted position. Brackets 15 and 16 are mounted on the chassis and the track respectively to prevent transverse rocking of the chassis when the body is tipped. The Specification as open to inspection under Sect 91 describes an embodiment in which the roller 11 may be engaged with the ramp 18 by a manually controlled piston and cylinder mechanism, Fig. 9 (Cancelled), not shown. This subject-matter does not appear in the Specification as accepted.
Patent GB-218468-A (GB)
Title: A fastening device for use on hoses and soft metal pipes
IPC: F16L33/24
Filed: 1923-06-15
Abstract: 218,468. Fairbrother, H., (Salter, G.). June 15, 1923. Joints with or without longitudinal pressure and with yielding outer part compressed. -Means for connecting a flexible pipe 6 to a rigid union or other pipe 5 consists of a nut 7, having a slightly tapering bore and shallow fine threads, adapted to be screwed over the end of the flexible pipe and to compress the latter on to that part if the rigid pipe which the flexible pipe overlaps. The taper of the bore of the nut is sufficient for all the convolutions of the thread to engage the flexible pipe. The internal and external diameters of each pipe are the same throughout its whole length. Wings 8 may be provided on the nuts. Reference has been directed by the Comptroller to Specifications 15644/00, 169/12, 102,145 and 112,280.
Patent GB-1203345-A (GB)
Title: Lateral brace for lower hoisting-unit links on agricultural tractors or the like
Inventor: FENDT HERMAN
IPC: A01B59/00
Filed: 1968-04-01
Abstract: 1,203,345. Tractor power-lift mechanisms. H. FENDT and X. FENDT. 1 April, 1968 [26 July, 1967], No. 15622/68. Heading A1P. A lateral brace for the lower hoisting unit links 3 of a tractor, to prevent or limit lateral mobility of an attached implement, comprises steadying struts 7 each comprising a long part 11 hinged at 10 to a short part 8 which is pivoted at 9 on a supporting arm 6 such that the path of movement of 10 crosses the axis of the link pivots 2, and the part 8 can be locked e.g. by a locking piece 13, into a position where the pivots 10 and 2 are coaxial. A detent 12 may be provided on the part 8 to provide independent locking of the links in the raised position. With the locking piece released, Fig. 4 (not shown) the pivot 10 is movable within limits defined on each side of the tractor e.g. by detents 15. Various servomotors are described. for operating the locking piece including a hydraulic ram and a rotary motor or a mechanical rod connection may be used.
Patent GB-568419-A (GB)
Title: Preparation of dialkyl peroxides
IPC: C07C409/16
Filed: 1943-09-24
Abstract: Dialkyl peroxides are prepared by heating an intimate mixture of a dialkyl sulphate, hydrogen peroxide and an aqueous alkaline solution at a temperature above 25 DEG  C, preferably in an atmosphere of an inert gas such as nitrogen, helium, argon or neon.  In the example, hydrogen peroxide is added to diethyl sulphate with potassium hydroxide solution, crude diethyl peroxide being distilled from the reaction mixture, the aqueous alkaline solution used may contain either the hydroxides of the alkali metals and alkaline earth metals or such of their salts as have an alkaline reaction, e.g. carbonates. The method, which may be continuous, may be applied to dimethyl, diethyl, dipropyl, diisopropyl and higher molecular weight sulphates. Modification in procedure may be required in the latter case to separate the peroxide from the reaction mixture.  Steam distillation, or simple separation followed by distillation, in the case of liquids, and filtration in the case of solids can be used.  The dialkyl peroxides may be used as explosives and detonating agents and are catalysts for various vinyl type polymerizations.
Patent GB-742738-A (GB)
Title: Improvements in and relating to shears for continuous rolled material
IPC: B23D25/06
Filed: 1953-06-08
Abstract: 742,738. Shearing. SCHLOEMANN AKT.- - GES. June 8, 1953 [Aug. 28, 1952], No. 15707/53. Class 83 (4). Flying . shear means for longitudinally moving work includes a lower knife carrier 9 pivoted at A and having slidable on guides 10 thereon an upper knife carrier 8 reciprocated along the guides by a crank 7 which also serves to oscillate the carriers in the direction of movement of the work. An arrangement in which the upper carrier is pivoted and the lower carrier reciprocated by a crank is described as prior art.
Patent GB-630039-A (GB)
Title: Improvements in or relating to hollow cores or bobbins, or the like, for yarn and like textile materials
IPC: B65H75/10
Filed: 1947-06-16
Abstract: 630,039. Bobbins &c. AMERICAN PAPER TUBE CO. June 16, 1947, No. 15837. Convention date, July 26, 1946. [Class 120 (iii)] A bobbin &c. for supporting yarn &c. is constructed of a tube 2 of fibrous material such as paper, compressed pulp &c. made in cyindrical form or slightly tapered longitudinally, the lower end of said tube being swelled outwardly to form a frustoconical portion 5. A metal annulus 4 is placed around this frustoconical portion so that it frictionally grips the tube and then a head 3 of thermoplastic or thermosetting resin is formed around the base of the tube by a moulding or dipping &c. process, such that the annulus is embedded therein. The upper end of the tube is preferably flanged inwardly at 8 and plastic material applied thereto to form a ferrule 7. Specifications 606,426 and 606,677 are referred to.
Patent GB-808811-A (GB)
Title: L(-) and d(+) threo--ß-(paranitrophenyl)-serine esters and a process for their manufacture
Filed: 1955-06-02
Abstract: The invention comprises D(+)-threo-b -(para-nitrophenyl)-serine methyl ester, L(+)-threo-b  - (para - nitrophenyl) - and D(-) - threo - b  - (para-nitrophenyl) serine methyl ester acid tartrates and a process for the manufacture of D(+)- and/or L(-)-threo-b -(para-nitrophenyl)-serine esters of aliphatic alcohols wherein a racemic threo-b -(para-nitrophenyl)-serine ester of an aliphatic alcohol is reacted with D(+)-tartaric acid in an anhydrous aliphatic alcohol, the diastereoisomeric salts so obtained are separated from one another by fractional crystallization and, if desired after recrystallization of the separated salts, the D(+)- and/or L(-)-threo-b -(para-nitrophenyl)-serine ester of the aliphatic alcohol is precipitated from an aqueous solution of the appropriate isolated diastereomeric salt by adding a base which produces a pH-value of at least 9 in aqueous solution.  Racemic ester starting materials mentioned are those derived from lower aliphatic alcohols, e.g. methyl, ethyl, propyl, isopropyl or isobutyl alcohols. Advantageously the alcohol employed as solvent is the same as that from which the racemic starting material is derived.  Bases mentioned include sodium and potassium hydroxides and carbonates, sodium bicarbonate and ammonia.  In the example, anhydrous D- and L-threo-b -(para-nitrophenyl)-serine methyl ester is boiled with D(+)-tartaric acid in methanol and the D(-)-diastereomer of the acid tartrate of the threo - b  - (para - nitrophenyl) - serine methyl ester is separated, dissolved in water and whilst cooling ammonia solution is added whereupon the D(+) - threo - b  - (para - nitrophenyl)-serine methyl ester separates and is filtered off.  The methanolic mother liquor remaining after the separation of the D(-)-diastercomeric acid tartrate is concentrated and the residual syrup dissolved in water. The L(+)-diastereomer of the acid tartrate of the threo-b -(para-nitrophenyl)-serine methyl ester is allowed to separate from the solution, is recrystallized and converted to the L(-)-threo-b -(para-nitrophenyl)-serine methyl ester by treatment with ammonia in aqueous solution.
Patent GB-642570-A (GB)
Title: Improvements relating to electric push-pull switches
Inventor: BOURNE WILLIAM GEORGE
IPC: H01H3/50
Filed: 1948-06-12
Abstract: 642,570. Electrically-released switches; switches partly electro-magnetic. ROTAX. Ltd. June 12, 1948, No. 15876. [Class 38(v)] In a push-pull switch, an axially-slidable - contact-actuating member a is held in operative positions on either side of a neutral "off" position by an electromagnet o surrounding said member. Fixed spring- pressed contacts. d are accommodated in radial slots in a cylindrical member c forming a support for one end of member a, different sets of contacts being engaged by an annular contact g on member a in the operative positions of the latter. The other end of member a carries a push-piece s surrounded by a pull-piece t, the two being separated by a spring u which together with springs 2, z, maintains the member a in the neutral postion. Pressure on the push-piece against springs u, 2 causes an armature r on member a to engage a polepiece q of the electromagnet, the latter being energized over either a separate switch or some of contacts d, g, to hold member a in this position. On the other hand, pulling on the pull-piece against springs u, z causes the armature to engage another pole-piece p which holds member a in its other operative position. The release of member a from either operative position is effected by exerting sufficient pull or pressure to overcome the attraction of the electromagnet or by denergizing the latter by a separate switch, the return of the member being completed by springs u, 2 or z. The push-piece may have a window v illuminated by a bulb w in either of the operative positions.
Patent GB-560579-A (GB)
Title: A new or improved implement for use in the production of covered heels for shoes
IPC: A43D25/12
Filed: 1942-11-11
Abstract: 560,579. Covering heels. BALE, L. Nov. 11, 1942, No. 15934. [Class 17 (i)] An implement for use in the manufacture of covered heels for shoes comprises a knife 1a consisting of a blade mounted lengthwise in a support and means for locating a heel with the centre of its breast in register with the cutting edge. A tread abutment 6a is carried by a slotted bar 6b clamped in adjusted position by a wing-nut 8. Gauges 3 are each inclined to the knife, to position the sides of the heel. The cover C is treated with adhesive and wrapped round the heel with its ends overlapping at the centre of the breast. The overlapping ends are then trimmed by the appliance to make a butt joint. The side gauges may be adjustable.
Patent GB-317561-A (GB)
Title: An improved hydraulic stop cock or valve, for use in connection with hose pipe connections, director nozzles and the like
IPC: F16K5/16
Filed: 1929-02-26
Abstract: 317,561. Horne, A. D., and McNaugh- 'ton, R. V. June 1, 1928. Leakage, preventing.-An hydraulic stop-cock or valve in a tubular casing 2, which may be screwed at each end so that it may be fitted to the nozzle 18 of a hose pipe &c. 17,comprises a ported conical plug 1 pressed at one end against a flat seating 7 by the pressure of the fluid in the pipe admitted to a. chamber 16 at the other end through a passage or groove 15 in the plug. The chamber 16 is closed by a screw cap 9 having a projection 9a leaving a small clearance for the plug. One arm of an operating-handle. 12 is secured by a screw 13 in the projecting plug-stem 5, the other arm being pivoted on a stud 14 screwed into the cap. The plug-end is usually flat to fit the flat seating 7.
Patent GB-649580-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/20
Filed: 1947-06-18
Abstract: 649,580. Photographic cameras. CIRO CAMERAS, Inc. June 18, 1947, No. 16081. Convention date, Aug. 30, 1946. [Class 98 (i)] A focusing mechanism adapted to be located wholly to one side of the light path comprises a single cylindrical post adapted to be rigidly secured to the lens carrier to extend towards the camera body, a supporting member having an internal cylindrical surface to receive the post and adapted to be supported by the body and a cam adapted to be mounted on the body and having a cam surface and a second surface the former engaged by a follower carried by the post and the latter by a resiliently urged abutment also carried by the post to hold the follower in engagement with the cam. The invention is described with reference to a twin-lens camera comprising a front wall 12 on which a lens panel 32 is slidably mounted. The panel is held by a cylindrical post 46 sliding for focusing in a sleeve 54 fixed to the camera body, and has a pin 33 sliding in an aperture of the wall 12 to prevent turning of the panel 32 during sliding. The cam follower comprises a pin 60 on the post 46 pressed by a spring 70, also on the post, against the upturned flange 84 of a cam 72 rotated by knob 8 to effect focusing. The Specification as open to inspection under Sect. 91 describes also an alternative in which the panel is supported by a plate moved in two parallel guides by a similar cam system. This subject-matter does not appear in the Specification as accepted.
Patent GB-1157865-A (GB)
Title: Pressure-Sensitive Copying Paper
IPC: B41M5/145
Filed: 1967-04-07
Abstract: 1,157,865. Coated paper. FUJI SHASHIN FILM, K.K. 7 April, 1967 [9 April, 1966], No. 16138/67. Heading B2E. [Also in Division D2] A pressure-sensitive copying paper (see Division D2) comprises a support coated with a layer containing an amino-coumarin of the formula where R 1  and R 2  are C 1 -C 4  alkyl or aralkyl and R 3  is C 1- C 4  alkyl or aryl, with or without a leuco compound such as crystal violet lactone, leuco-methylene blue or benzoyl-leucomethylene blue. The compounds are dissolved in an oil (e.g. trichlorodiphenyl mixed with kerosene) and dispersed in an emulsion of gelatin and gum arabic. The mixture is acidified to produce capsules of gelatin and gum arabic around the oil drops, and these capsules are then hardened with formaldehyde. The support is coated with the capsule dispersion and then dried. Suitable amino-courmarins are mentioned.
Patent GB-151724-A (GB)
Title: Improvements in motor-car bodies
IPC: B62D29/02
Filed: 1919-06-28
Abstract: 151,724. Porritt, G. F., Porritt, J. N., and Lacy, G., (trading as Lever Motor Co.). June 28, 1919. Bodies. - The standing pillar and the door hinge pillar of a motor-car or like vehicle are made of metal as a separate unit which can be built into place on the car. Lugs C serve to attach the standing pillar A. to the car body and the door to the hinge-pillar B. The pillar B is formed with runs for the window, and the pillar A may have grooves G to receive the wind-screen H.
Patent GB-123931-A (GB)
Title: An Improved Washable Distemper or Water Paint.
Inventor: MCLEAN STUART ALFRED
IPC: C09D5/02
Filed: 1918-10-07
Abstract: 123,931. McLean, S. A. Oct. 7, 1918. Distempers.-A composition for washable distemper or water paint consists of the following ingredients mixed in the proportion stated, water 25 lb., glue solution of a strength of one part glue to ten parts water 50 lb., whitening 100 lb., linseed oil 12 lb., borax 2 lb., powdered alum 2 lb., and methylated spirit “ ounce. Preferably 1 lb. of boracic powder is added to give a smooth surface to the paint, and also a fluid disinfectant such as salicylic acid in the proportion of one pound to a thousand of the mixture. The resulting paste is made ready for use by mixing with water or with a thinning liquid such as is described in Specification 123,932.