baber/WOPTO huggingface dataset:
Patent GB-468821-A (GB)
Title: Improvements in mouth-whistles
IPC: G10K5/00
Filed: 1936-11-20
Abstract: 468,821. Whistles. HUDSON, J. C. Nov. 20, 1936, No. 31771. [Class 13] A mouth whistle adapted to produce sounds above the normal range of human audibility, is provided with a screw device for varying the frequency of the note produced together with means for locking the screw device after it has been adjusted. The whistle comprises a cylindrical body portion 1 with a mouthpiece la, aperture 2, and a metal block 3, with an inclined front surface and has a cylindrical chamber the volume of which can be varied by a plunger 5 formed on a rod 6 attached to a screwed spindle 6a. The plunger is held in its adjusted position by a lock-nut 8 engaging with the end of the cylindrical portion 1. To prevent the complete withdrawal of the rod 6 and plunger 5 from the body portion, the rod is formed with a central portion of reduced diameter which co-operates with a set-screw 9.
Patent GB-620428-A (GB)
Title: Seed-cleaning device for threshing machines
IPC: A01F12/44
Filed: 1946-10-28
Abstract: 620,428. Thrashing-machines. CHAUVIN. A. J. M. Oct. 28, 1946, No. 31875. Convention date, Oct. 29, 1945. [Class 58] A final seed cleaning device for thrashing-machines comprises three superimposed inclined screens staggered in plan in their direction of inclination and means for directing a strong air current obliquely upwards against the undersides of said screens from the end of the device from which the screens slope down, the meshsize of all three screens being the same and large enough to allow, the seed to pass, together with means for feeding seed on to the raised end of the uppermost of the three screens. The device may be attached to a vibratory component of the thrashing- machine so as to partake of a horizontal vibratory motion in a direction transverse to the direction of slope of the screens. In a preferred embodiment the seed to be treated is fed through an opening (not shown) in the wall 10 on to the screen 3, passes through the system of screens 3, 4 and 5 on to the screen 9 of mesh-size small enough to retain the seed and oppositely inclined to screens 3, 4 and 5, whence it is discharged through a chute 11 for bagging. A conduit 12 of large cross-section comi municates Àwith a fan (not shown) which blows a strong air current obliquely against the underside of screens 3, 4 and 5. The exhaust opening 2 is provided with a shutter 13 pivoted at 14 which can be locked in any desired position so that any seed which escapes from the right-hand ends of screens 3, 4 and 5 will impinge on the shutter 13 and be directed into a conduit 18 whence it is returned to the circuit through the opening in wall 10.
Patent GB-1518401-A (GB)
Title: Closed mixing method and apparatus for agricultural sprayers
IPC: B05B7/04
Filed: 1976-08-11
Abstract: 1518401 Spraying vehicles SOILSERV INC 11 Aug 1976 [11 Aug 1975] 31884/76 Heading AID [Also in Division B1] Agricultural chemicals are mixed and diluted (see Division B1) in a sprayer tending vehicle 10 and transferred through a flexible hose 18 to tanks 50, 51 on a vehicle sprayer 14, 14'.
Patent GB-1241447-A (GB)
Title: Polycondensates containing ester groups and alkoxymethylated amide groups, and treatment of shaped articles therewith
Inventor: ABOUL-FETOUH MAHMOUD EL-SAYED
IPC: D06M15/39
Filed: 1968-07-04
Abstract: 1,241,447. Treating textiles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 July, 1969 [4 July, 1968], No. 31925/68. Heading D1P. [Also in Division C3] Fibres or textiles (Q) are treated with polycondensates (P) obtained by (1) condensing an aliphatic dicarboxylic acid with a hydroxypolyoxyalkylene compound and an aliphatic or cycloaliphatic amino-acid, lactam, and/or diamine, and then (2) reacting the product with HCHO and a C 1 -C 4  aliphatic alcohol. (Q) is treated with (P) and an acid catalyst and subjected to heat e.g. 120-220‹C, (P) and the catalyst may be dissolved or dispersed in H 2 O and/or an organic solvent e.g. CHCl=CCl 2 . Based on wt of article, 0.1-5% wt of (P) may be applied. (Q) may be nylon, polyethylene terephthalate, acrylonitrile (co)polymers, cellulose triacetate, glass, keratin or natural cellulosic material, and the articles may be filaments, fibres, or textiles, rovings yarns, non-woven, woven, or knitted fabrics. The acid catalyst for the treatment may be water-soluble, e.g. (COOH) 2 , ZnCl 2 , (NH 4 ) 2 SO 4 , NH 4 Cl, amine salts, MgCl 2 , NH 4 CNS; or water-soluble, e.g. (COOH) 2 , ZnCl 2' (NH 4 ) 2 SO 4 , dodecylbenzene-sulphonic acid, 2,2-bis(hydroxymethyl)butylphosphoric acid, methyl ptoluenesulphonate, cetylpyridinium bromide, stearamidomethylpyridinium chloride, methanesulphonyl chloride or fluoride, benzene sulphonyl chloride, p-toluenesulphonyl chloride or fluoride, and/or m-benzenedisulphonyl chloride. Application may be by dipping, impregnation, spraying, or by brush, furnishing roller, or squeegee, at from ordinary temperature to 50‹C; after application the article may be dried at from ordinary temperature to 120‹C. Also applied may be known cross-linking agents or resinous condensates e.g. dimethyloldihydroxyethyleneurea resin, carboxymethylcellulose or hydroxylalkyl ethers of cellulose or starch. After treatment the article may be washed and dried. The treated articles have improved fullness, warmth to the touch, moisture absorbency, and have diminished tendency to become electrified and to soil.
Patent GB-1471980-A (GB)
Title: Laundry system
IPC: D06F58/02
Filed: 1974-10-08
Abstract: 1471980 Laundry systems McGRAW EDISON CO 8 Oct 1974 [15 Oct 1973] 31939/75 Divided out of 1471979 Heading F4G [Also in Division D1] The subject matter is as in Specification 1,471,979 but the claims relate to the operative combination between the tumbler and the washer-extractor.
Patent GB-495599-A (GB)
Title: Production of synchronising signals in television transmitters
IPC: H04N5/06
Filed: 1937-11-20
Abstract: 495,599. Television transmitters. RADIOAKT.-GES. D. S. LOEWE. Nov. 20, 1937, No. 32004. Convention date, Nov. 26, 1936. [Class 40 (iii)] A scanning disc 8, rotating a plurality of times to produce an intercalated scan, has slots 6, 9 co-operating with cells 21, 31 to produce line and frame synchronizing impulses, the line impulses from 21 being applied to a tuned amplifier 23, subjected to frequency subdivision at 24 and applied to one grid of a mixing valve 36, while the frame impulses are aperiodically amplified at 33 before application to the other grid of the mixing valve. The cell 31 is preferably energized with alternating current of frame frequency, so that the plurality of disc rotations per frame do not give rise to multiple frame impulses. The images of the apertures 3, 13 on the disc 8 are arranged to be smaller than the radial dimensions of the slots 6, 9 so that the amplitude of the impulses is uneffected by small relative movements between the disc 8 and the images. A lead 38 from the frame impulse amplifier 33 serves to suppress the line frequency impulses during the frame impulses.
Patent GB-618161-A (GB)
Title: Improvements in deck-chairs and the like folding seats
IPC: A47C4/42
Filed: 1946-10-29
Abstract: 618,161. Seats. PARKS, J. F. Oct. 29, 1946, No. 32015. [Class 52 (ii)] A folding seat comprises front and rear support assemblies for a detachable hammock seat, the support assemblies being connected together by a single main frame member and adapted to be folded or collapsed independently of each other. The rear support assembly comprises a tube 10 carried by a connecting piece 11 pivoted to one end of the main frame member 9 and to splayed legs 21 the tube 10 being also connected by means of a slidable collar 23 which may be locked in selected position to adjust the back and which is pivoted to struts 22, 24 respectively pivoted to the legs 11 and the frame member 9. In addition the tube 10 has a pivoted extension 8 which is locked in alignment by a sleeve 26 and which carries the rear end of the seat 1. The front support assembly comprises tubes 6 which are slidable through a connecting piece 12 which is pivoted to the front end of the frame member 9 and to splayed legs 13. The tubes 6 are pivoted to a connecting piece 17 carrying a short tube 16 having at its lower end a connecting piece 15 to which are pivoted struts 14, 19 the other ends of which are pivoted to the legs 13 and frame member 9 respectively. The seat 1 is pivoted at each end with spreaders 2, 3 the ends of the spreader 2 being engageable in forks 5 at the ends of the support members 6 while the spreader 3 is provided with a central projection 7 adapted to fit into the end of the tube 8. In folding the seat 1 is removed and the connecting piece 12 is rotated anticlockwise causing the tubes 6 to slide through the connecting piece 12 and assume parallel positions also drawing the legs 13 into parallel positions and together with the tubes 6 against the underside of the frame member 9. To fold the rear support assembly the collar 23 is unlocked and the connecting piece 11 and tube 10 rotated anticlockwise causing the legs 21 and struts 22 to assume parallel positions and fold with the tube 10 against the upper side of the frame member 9 meanwhile the extension tube 8 is folded on to the tube 10. Fig. 14 shows a modification in which the main member 38 has pivoted thereto front and rear short tubes 37, 39 the rear short tubes 37 having also pivoted thereto the rear support tube 36. The front and rear legs 40, 41 are universally pivoted at 45 to the main member 38 and are also pivoted to struts 42, 43 the other ends of which are universally pivoted at 45 as shown. Struts 48, 54 engageable with ratchets 50, 56 keep the seat in adjusted positions and also engage the legs 40, 41 so that on folding, when the struts 48, 54 are disengaged from the ratchets, the legs of each pair are drawn together and are folded on to the top side and bottom side of the member 38.
Patent GB-823269-A (GB)
Title: Improved electric circuit wiring
Inventor: BEDFORD JOHN MELVIN
IPC: H05K1/00
Filed: 1956-10-22
Abstract: 823,269. Printed circuits. PARMEKO Ltd. Oct. 22, 1957 [Oct. 22, 1956], No. 32095/56. Class 37. Preformed wiring is produced by applying to an insulating board or sheet a conducting foil having regularly spaced interstices all of identical size and shape and arranged in regular horizontal and vertical rows, provided lines of conducting foil intersecting one another at regular intervals, and thereafter punching the insulating sheet or board and the foil simultaneously to individually gap predetermined ones of the intersecting lines and thereby interrupt the continuity of these lines and provide the desired circuit wiring. The conducting film may first be applied to a flexible sheet of insulating material before mounting on a rigid insulating board such as thin synthetic resin-bonded laminated paper. As shown, a recticular foil a is stamped out of copper and is attached to an insulating board e. The horizontal and vertical conducting lines so formed are interrupted where required by holes f, punched through the foil a and the insulating board e preferably by a battery of small punches. Smaller holes g and slots h are also provided for the connection and mounting of components on either side of the board. The layout and circuit of a threestage transistor audio frequency amplifier is also shown in the Specification. Specification 804,189 is referred to.
Patent GB-382440-A (GB)
Title: Improvements in and relating to pyrophoric pocket lighters
IPC: F23Q2/08
Filed: 1931-11-19
Abstract: 382,440. Frictional pocket-igniters. IBELO PFEIFENFABRIK AKT.-GES., 131, Gutleutstrasse, Frankfort - on - Main, Germany.-(Assignees of Maltner Ges., H. ; 251A, Biebererstrasse, Frankfort-on-Main, Germany.) Nov. 19, 1931, No. 32097. Convention date, Feb. 3. [Class 75 (iii).] In a pocket lighter in which a wick-cap carrier 2, which actuates the friction wheel 10, is mounted on the same pivot 9 as the latter and is operated by a rocking member 6 which engages with it and which is pivoted on a separate spindle, the rocking member 6 is in the form of a casing which partly encloses the carrier and is provided at one end with an opening through which the carrier 2 can pass. Pivotally connected at 18 with the carrier 2 is the forked head 17 of the rod 16 which slides in a bore in a transverse member 20. The latter is pivoted, together with the rocker 6, on pins 21 which screw into the member 20, and forms an abutment for the spring 19, which presses the rod outwardly. In the closed position shown, the pivot 18 lies above the dead-centre position with respect to the pivot 9, and holds the carrier so that the wick-cap rests on its seat. When the end 22 of the rocker 6 is depressed, the carrier 2 is engaged by the projections 8 on the rocker and is thereby rotated until the pivot 18 is past the dead-centre position, when the spring 19 expands and opens the carrier rapidly. A spring-pressed pawl 14, mounted on the carrier 2, engages ratchet teeth in the side of the wheel 10 and rotates the latter. A spring pressing on the other side of the wheel holds it in position. The lighter is closed by depressing the carrier 2.
Patent GB-137051-A (GB)
Title: Improvements in Snap Fasteners.
IPC: A44B17/00
Filed: 1919-12-22
Abstract: 137,051. Carr Fastener Co., (Assignees of Church, E. S.). Dec. 23, 1918, [Convention date]. Press-button fasteners; stud- and-socket fastenings. - A snap fastener for curtains comprises a stud 7 having a rounded head 11 with a square abutment shoulder 14, and a socket 9 consisting of a front plate 15 secured by tongues 19 to a back plate 18, both being attached to the curtain 10 by tongues 21 passing therethrough and clinched over a washer 22. The stud is held in the socket by a fixed inclined lip 26 pressed up from the plate 18, engaging behind the shoulder 14, and by a bar 25 of a spring 24, Fig. 6, placed between the plates 15, 18, the bar 25 forcing the shank of the stud against the lip 26. To release the stud, the socket member is first pulled downwardly against the force of the bar 25 to clear the lip 26 from the stud shoulder 14, the parts being then separated by tilting the lower portion of the socket outwards.
Patent GB-618184-A (GB)
Title: Improvements in processes for improving the crease resisting properties of textile materials
IPC: D06M11/38
Filed: 1946-10-31
Abstract: In improving the crease-resisting properties of textile materials by impregnating the materials with a partial condensation product of urea or thiourea and formaldehyde or other aldehyde and then drying and baking the materials, the pH value is kept within the range 4-6 throughout the operations of impregnating, drying and baking by addition of a suitable substance or substances to the impregnating solution.  Specified additions are sodium dihydrogen phosphate and a mixture of citric acid and disodium hydrogen phosphate, and an example of the use of each of these is given.  After the materials have been baked they are preferably treated with a dilute solution of a mineral acid, e.g. sulphuric acid, to complete the condensation, and then washed neutralized and soaped.  Specifications 291,473, [Class 2 (iii)], and 449,243 are referred to.
Patent GB-807408-A (GB)
Title: Improved heat exchanger for use as an air preheater
IPC: F23M20/00
Filed: 1955-11-11
Abstract: 807,408. Heat exchangers. FOSTER WHEELER Ltd. Nov. 11, 1955 [Nov. 12, 1954], No. 32320/56. Classes 64(1) and 64(3) An air preheater comprises a section h'aving a chamber with an inlet for hot furnace gases of a smaller cross-sectional area than the said chamber, in which air to be heated is passed through a bundle of tubes adjacent to the chamber, wall and substantially out of contact with the path of flow of the hot furnace gases through the chamber to absorb heat primarily by radiation, the air being then led to a second section in which heat is absorbed primarily by convection. In the air preheater shown, a portion (e.g. one fifth) of the combustion air required for a furnace is forced by a compressor 39 through the U-tubes 30, 32 of a heat exchanger disposed in a chamber 16 to which hot gases are admitted through an inlet duct 13. Heat transfer to the tubes in chamber 16 is mainly by radiation. The heated air passes from tubes 30, 32 to an injector 43 whereby the remaining four fifths of the required quantity of combustion air is drawn in through a damper controlled inlet 59. The. whole of the air then passes through a duct 61 and flows over the tubes 47 of a second heat exchanger disposed in a chamber 48 and which heats the air mainly by convection. The heated air leaves the apparatus through a duct 66. The tubes 47 communicate with the radiation chamber 16 and the hot gases flow therethrough to a stack 55. The tubes 47 are mounted at one end in a tube plate 51 resiliently supported on a wall 52 by a flexible seal 53.
Patent GB-667432-A (GB)
Title: Improvements in or relating to amusement apparatus
IPC: A63G1/34
Filed: 1949-12-17
Abstract: 667,432. Roundabouts. GREEN, R. B. Dec. 17, 1949, No. 32412/49. Class 132 (i). [Also in Group XXV] In a merry-go-round in which the cars and passengers are periodically hidden from view by means of a collapsable canopy 10 carried by supports or stays, the supports 9 have T-shaped or headed bolts 21 which engage slots 23 in plates 22 secured to the canopy. As shown, the supports or stays are mounted on car shafts 7 carrying wheels 8 which are rotated by ropes 11 to raise the canopy 10 against the action of springs 24 connecting adjacent plates 22. The ropes 11 are attached to a drum 12 which normally rotates with the rest of the merry-goround but may be braked by expanding brake shoes 15 applied by hand wheel 20, so as to allow the ropes 11 to wind on the drum and thereby exert a pull which raises the canopy.
Patent GB-1493180-A (GB)
Title: Method for recovering a polyol from a flexible polyurethane foam
IPC: C08J11/00
Filed: 1975-08-04
Abstract: 1493180 Recovering polyols from polyurethanes BRIDGESTONE TIRE KK 4 Aug 1975 [2 Aug 1974] 32432/75 Heading C3R Polyols may be recovered from a flexible polyurethane foam by dissolving the flexible polyurethane foam in an aliphatic diol having a M.W. of 400 to 3000 and a boiling point of higher than 180 C. and heating the dissolved polyurethane at a temperature of 170 to 250 C. in the presence of a halogenated ester of phosphoric acid the weight ratio of the aliphatic diol to the halogenated ester being 1/1 to 20/1, whereby the polyurethane is thermally decomposed, and the resulting amine is precipitated in the form of a solid amine derivative of phosphoric acid, and a reusable polyol is recovered. Preferred diols are polyoxypropylene glycols. The halogenated ester may be tris- (dichloropropyl) phosphate or tris-(chloroethyl) phosphate. If the halogenated ester has been used as a flame retardant in the production of the polyurethane foam, it is not necessary to add more in order to carry out the decomposition. The recovered polyol may be used as the base polyol in the preparation of further polyurethanes.
Patent GB-466416-A (GB)
Title: Improvements in process and apparatus for carrying out exothermic reactions
IPC: C07D301/10
Filed: 1935-11-22
Abstract: <PICT:0466416/IV/1> The oxidation of olefines, particularly of ethylene to ethylene oxide, is carried out by passing a mixture of olefines and oxygen, or a gas containing it, over a suitable catalyst in thin layer form contained in a tube or tubes of good heat conducting material, the reaction temperature being maintained substantially constant, e.g. between 200 and 400 DEG  C., by immersion of the tubes in a liquid the temperature of which is maintained constant, e.g. a liquid boiling at constant temperature. The Figure shows a suitable arrangement in the form of a multi-tubular condenser.  In the uppermost tube 3 the catalyst 5 is a thin layer on the internal wall of the tube, and a baffle, consisting of an axial rod 6 carrying discs 7, is provided to increase the turbulence of the gas and divert the gases towards the catalytic layer.  In the middle tube, the catalyst 5 is coated on to an axial rod 8.  In the lowermost tube, the axial rod 9 acts as a preheater, being uncoated, and the second rod 10 is coated with catalyst. Alternatively, the gases may be preheated by passage through a pipe extending axially through each tube and catalytically treated by passage back through the annulus between them.  The catalyst may consist of silver which is mixed with cellulose acetate solution and applied to the required surface, or the cellulose acetate solution may be applied alone and silver powder dusted on. In either case, the tube may be heated to remove the cellulose acetate.ALSO:<PICT:0466416/III/1> The oxidation of olefines, particularly of ethylene to ethylene oxide, is carried out by passing a mixture of olefines and oxygen, or a gas containing it, over a suitable catalyst in thin layer form contained in a tube or tubes of good heat conducting material, the reaction temperature being maintained substantially constant, e.g. between 200 and 400 DEG  C., by immersion of the tubes in a liquid the temperature of which is maintained constant, e.g. a liquid boiling at constant pressure.  The Figure shows a suitable arrangement in the form of a multi-tubular condenser.  In the uppermost tube the catalyst 5 is a thin layer on the internal wall of the tube, and a baffle, consisting of an axial rod 6 carrying discs 7, is provided to increase the turbulence of the gas and divert the gases towards the catalytic layer.  In the middle tube, the catalyst 5 is coated on to an axial rod 8.  In the lowermost tube, the axial rod 9 acts as a preheater, being uncoated, and the second rod 10 is coated with catalyst. Alternatively, the gases may be preheated by passage through a pipe extending axially through each tube and catalytically treated by passage back through the annulus between them.  The catalyst may consist of silver which is mixed with cellulose acetate solution and applied to the required surface or the cellulose acetate solution may be applied alone and silver powder dusted on. In either case, the tube may be heated to remove the cellulose acetate.
Patent GB-280058-A (GB)
Title: Improved construction of tacking and stapling machine
IPC: B25C5/02
Filed: 1926-12-24
Abstract: 280,058. Setten & Durward, Ltd., and Tough, J. Dec. 24, 1926. Stapling, hand tools for. - In a stapling and tacking machine of the bench type, wherein an anvil-carrying table is hinged to the body of the machine and may be retained in extended or tacking position by a spring catch, the latter comprises a limb spring secured to the table or body and adapted to engage a projection on the body or table. As shown, the base c of the machine is hinged to the table a at a<3>. A limb spring f secured to a pin f<2> on the base has a bent part f<3> which engages the end wall a<4> of the table when the latter is in extended position. The pin f<2> supports a coiled spring an arm e of which constitutes the staple feeder. In a modification, the spring is mounted on the base and has an aperture to engage over the end of the pin f<2>. In another modification, the spring has an end lip to engage over the end of the pin f<2> which in this case has an enlarged head.