baber/WOPTO huggingface dataset:
Patent GB-124446-A (GB)
Title: Recoil-absorbing Device for Fire-arms.
Inventor: GALLIOT NORBERT JULES ANDRE
IPC: F41A21/36
Filed: 1919-03-17
Abstract: 124,446. Galliot, N. J. A., and Bory, G. H. L. G. March 16, 1918, [Convention date]. Machine guns; ordnance design.-Relates to muzzle-attachments for diminishing the recoil of rifles, machine guns or ordnance of the kind described in Specification 131,040, in which the gun gases expand into a divergent or convergentdivergent nozzle a, and are deflected rearwardly by a concave guide-surface c<3> generated by the revolution of an arc B, C, D around the axis X-X of the nozzle. According to the present invention, the outer portion C, D<1> of the guide-surface is convex in form, the double curvature creating vortices in the gases which cause them to be deflected in a plane perpendicular to the axis of the nozzle instead of rearwardly. The point of contra-flexure C of the guide-surface is given by a line drawn from the front lip A of the nozzle at an angle a, to the generator of the nozzle, this angle lying between 35 and 60 degrees.
Patent GB-835922-A (GB)
Title: Tube-cleaning apparatus
IPC: B08B9/04
Filed: 1957-02-27
Abstract: 835,922. Cleaning tubes. CROWTHER, H. A. H. Jan. 20, 1958 [Feb. 27, 1957], No. 6619/57. Class 99(2). Tube-cleaning apparatus comprises an elongated carrier 1 and one or more stiff or rigid cleaning rings 7 looosely mounted and sustained by resilient means 8 about the carrier. The carrier member may be a multi stranded cable or it may comprise a straight rod or consist of a coiled strip whether wound around a stranded or plain core or not. The cleaning means may be arranged at each end of the carrier member. The portion of the shank about which the springs and cleaning members are mounted may be plain. The stepped sleeve 10 may be used as a broach for cleaning smaller tubes. The end core may be detachable but it is generally preferred to fix it in position if desired with the aid of a plastic seal. The apparatus is especially for cleaning rubber and like flexible tubes for conveying milk. The screw threads 2 may be cut directly in the outer surface of the cable.
Patent GB-854134-A (GB)
Title: Organo-silicon modified polyesters
IPC: C08G77/00
Filed: 1958-02-23
Abstract: Thermoplastic heat-stable polycondensation products, suitable for the manufacture of fibres, moulded bodies and coatings, are made by reacting (a) a dialkyl, diaryl or monoalkyl monoaryl dihydroxy silane or a halide, alkoxy or aryloxy derivative thereof, (b) an aromatic dihydroxy compound in which the two hydroxyl groups are attached directly to one or more aromatic nuclei and (c) terephthalic acid, diphenyl-4, 41-dicarboxylic acid, diphenylmethane-4, 41-dicarboxylic acid or naphthalene-1 : 4-, 1 : 5-, or 2 : 6-dicarboxylic acid, or a dihalide or diester of these acids.  The aromatic dihydroxy compound may be hydroquinone, 2, 3, 5, 6-tetrachlorohydroquinone, pyrocatechol, 1,4-, 1, 5- or 2, 6-dihydroxynaphthalene, 4, 4-dihydroxy diphenyl, a di-(monohydroxy-arylene)- alkane or cycloalkane (many specified), 4, 41-dihydroxy-diphenylene ether, 4, 41-dihydroxy-diphenylene sulphide, 4, 41-dihydroxy-dihenylene sulphoxide, 4, 41-dihydroxy-diphenylene sulphone or 4, 41-dihydroxybenzophenone.  When starting from dihalo silanes and dihalides of dicarboxylic acids, reaction is preferably effected at room temperature in the presence of a hydrogen halide binding substance, e.g. a tertiary amine, and an inert solvent. When starting from a dihydroxy dialkoxy or diaryloxy silane and a diester of a dicarboxylic acid, reaction is preferably effected at 200 DEG -400 DEG C., if desired in the presence of an acidic or basic catalyst; if a basic catalyst is used, it is preferably neutralised towards the end of the reaction, preferably with a volatile acidic material.  As chain terminating agent there may be used monohydric phenols or monofunctional trialkyl or triaryl silanes.  The products are soluble in methylene chloride, chloroform, benzene, toluene, xylene, cyclohexanone and dimethyl formamide.  In example thermoplastic resins are made by reacting (1)-(3) dimethyl diphenoxy silane, 2, 2-(4,41-dihydroxy-diphenylene)-propane and diphenyl terephthalate; (4) dimethyl dichloro silane, 2,2-(4, 41-dihydroxy-diphenylene)- propane and terephthaloyl chloride.
Patent GB-830865-A (GB)
Title: Improvements in and relating to fluid control valves for web guiding apparatus
IPC: B65H23/02
Filed: 1958-03-01
Abstract: 830,865. Guiding webs transversely. HARNDEN Ltd., C. A., and HARNDEN, C. A. May 2, 1958 [March 1, 1958], No. 6645/58. Class 100(1) A fluid control valve controls the supply of oil under pressure to a web guiding apparatus in response to lateral deviations of a web. Lateral deviations of the web cause a reduction in vacuum at a port normally covered by the web, thereby decreasing the vacuum in a cylinder 2 below a piston 7 urged upwardly by a spring 4. The piston 7 and valve spindle 9 thereupon lift under the influence of the spring 4. A port 10, supplied with oil under pressure, is then connected to a port 11 to supply oil under pressure to the piston of a web guiding apparatus, while a port 12 connected to the exhaust side of this piston opens to a discharge port 13b. When the web is in correct lateral positions the piston 7 and spindle 9 are positioned to shut the port 10 from the ports 11 and 12, thereby rendering the web guiding apparatus inoperative.
Patent GB-1007621-A (GB)
Title: Novel isoquinoline derivatives and a process for the manufacture thereof
Inventor: CREIGHTON MARTHA MABEL
Filed: 1964-02-18
Abstract: The invention comprises compounds of formulae <FORM:1007621/C2/1> wherein R1 and R2 are hydrogen atoms or alkoxy groups or in combination or alkylenedioxy group, wherein the alkyl moiety or moieties have up to 4 carbon atoms, their acid addition salts of formula <FORM:1007621/C2/2> wherein Y- is an anion, and their preparation by subjecting a compound of formula <FORM:1007621/C2/3> wherein A1 is a cyclohex-1-enyl group, or a phenyl group optionally substituted by groups R1 and R2 in any desired sequence or simultaneously, to cyclization and hydration of the cyano-group.  N - (b  - phenethyl - ) - malonic acid diamide is prepared by hydration of N-(b -phenethyl-)-cyanoacetamide using polyphosphoric acid.  1 - Cyanomethyl - 3,4,5,6,7,8 - hexahydroisoquinoline perchlorate is prepared by cyclization of N - [2 - (cyclohex - 1 - enyl) - ethyl]-cyanoacetamide with phosphorus pentoxide to give 1 - cyanomethylidene - 1,2,3,4,5,6,7,8-octahydroisoquinoline, followed by treatment of this compound with perchloric acid.  The compounds of the invention have antiviral activity and may be used pharmaceutically, optionally with a carrier, for example in forms suitable for oral or parenteral administration, such as tablets, capsules, lozenges, dragees, solutions, suspensions or emulsions. Specifications 1,007,622 and 1,007,623 are referred to.
Patent GB-323156-A (GB)
Title: Improvements in or relating to the aeration of sewage and other liquids
IPC: C02F3/12
Filed: 1929-03-01
Abstract: 323,156. Butler, W., and Tabor, E. H. March 1, 1929. Aerating.-In the aeration of sewage, sludge, and other liquids, and particularly in the treatment of sewage containing free humus, the sewage &c. is forced by paddles or other suitable means along channels each of which is subdivided by a false bottom 12 into an open-topped upper passage 11 and a covered lower passage 10. At certain points, the liquid is directed by diagonal partitions 15, 16, Figs. 5, 6, from the upper into the lower passage and vice versa. A number of channels are arranged side by side in the form of a parallelogram, and spiral passages 13 and 14 afford communication between the upper and lower passages at one end of the apparatus and between adjacent channels at the other end. Downwardly-projecting ribs 19, Fig. 5, are provided along the underside of the parts to maintain an air space above the liquid in the lower passage. The liquid is thus alternately freely exposed to the atmosphere and brought under pressure.. Air may be introduced through porous plates in the bottom of the channel.
Patent GB-330510-A (GB)
Title: Improvements in and connected with electric regulators
IPC: G05F1/00
Filed: 1929-03-01
Abstract: 330,510. Stone & Co., Ltd., J., and Honey, A. E. March 1, 1929. Rotary machines; cores; armatures; mounting and dismounting rotors; exciting. - An automatic regulating, controlling or switching means for electrical installations, particularly for trains, comprises an electric motor, having a field magnet giving substantially constant excitation, and responsive to the variation of an electrical quantity, and a centrifugal governor, driven by the motor, and producing the mechanical effort required. The field magnet has permanent or supersaturated excitation and the motor may have an auxiliary excitable magnet. A cobalt steel body 5, comprising integral horseshoe magnets with constrictions 7 at the junction of the magnets, is clamped by bolts 24 to the face. of a non-magnetic casing 16. An auxiliary magnet is secured to the casing between the body 5 and an end-ring 23, bolts 24 being screwed into holes in the non-magnetic core 14 of the auxiliary magnet into which the pole members 10 are cast; the pole-faces, which are splayed, are flush with the bore of the vore 14 and interchangeable yokes carrying suitable exciting windings are bolted between the pole members 10. The end ring 23 is secured by nuts 26 and supports a ball-bearing for the armature spindle 29, brush gear 30, and a cover 33. A centrifugal governor for operating a regulating switch is carried by a spindle 51 carried by a ball-bearing 52 in an end-plate 53 secured in the the casing 16 and by an inner bearing in a member 41 secured in a spider on the casing. The spindles 29, 51 are coupled by a pin 36 on the former engaging a slot in a somewhat spherical head 37 on the latter. Thus the armature may be removed and accurately neplaced on removing the nuts 26 securing the endring 23. The armature core is in two sections 1, 2 lying respectivelv in the fields of the structures 5, 14, but the conductors traverse both and are of generous cross-section to avoid variations due to temperature.
Patent GB-851261-A (GB)
Title: Improvements in cellular metering wheels
IPC: G01F1/06
Filed: 1959-02-27
Abstract: 851,261. Metering paper pulp suspensions. VOITH G.m.b.H., J. M. Feb. 27, 1959 [May 2, 1958], No. 6847/59. Class 96. A metering-wheel for mechanical or chemical wood pulp or waste paper suspensions &c. is formed with blades 2, which are thickened at 4 towards their outer edges. The wheel may rotate in, and coact with the floor of a box 1. It may be partly covered by a wedge-shaped hood, rounded at its lower edge 6.
Patent GB-1011268-A (GB)
Title: Improvements in or relating to bed bottles
Inventor: HUMPHREY LESLIE FRANK
IPC: A61G9/00
Filed: 1963-02-20
Abstract: 1,011,268. Urine bottles. REED PAPER GROUP Ltd. Feb. 17, 1964 [Feb. 20, 1963; June 5, 1963], Nos. 6867/63 and 22387/63. Heading A4N. A urine bottle of sheet material is constructed to fold flat by collapsing the convex upper wall inwardly about fold 10, so as to bring the faces 11 and 12 in contact. The folded bottle is erected, with snap action, on applying finger pressure to the opposite ends of the fold 10. The bottle may be of thin cardboard lined internally with ploythene film and heat sealed at its edges 16. In another form (Figs. 5-7, not shown), having rectilinear edges to aid seating, the upper end of the bottle is made to taper, after sealing, by pleats which are retained in position by a tab stuck over them.
Patent GB-145119-A (GB)
Title: Improvements in or relating to gramophones and the like
IPC: G11B17/02
Filed: 1919-03-19
Abstract: 145,119. Waller, P. H., and Nordman, B. E. March 19, 1919. Periodic. - Brake apparatus for stopping a gramophone automatically at the end of a reproduction is normally held inoperative by a detent which is released by the weight of the tone-arm when the sound-box reaches the end of the record groove. The brake block N<5> is mounted at the outer end of a radial rod N slidably supported in guides N<1> on the underside of the turntable B. It is pressed outwards towards a fixed surface Q by a spring N<3>, but is normally restrained by a detent N<2> engaging a pin P<3>. This pin is attached to a plunger P<1> slidable vertically in the turntable spindle P. At the end of a reproduction a curved cam R, Fig. 3, attached to the tone-arm engages and depresses the plunger P', thereby releasing the detent N<2> and allowing the spring N<3> to bring the brake-block N<5> into engagement with the fixed braking-surface Q. The record disk may have a rapid-pitch spiral groove, or a deep groove, or both, at the end of the record groove.
Patent GB-1411856-A (GB)
Title: Herbicide
IPC: A01N/
Filed: 1973-02-13
Abstract: 1411856 Mixed herbicides BASF AG 13 Feb 1973 [14 Feb 1972] 6920/73 Heading A5E A herbicidal composition comprises a mixture of a nitrophenol compound of the formula a) where R denotes hydrogen, acetyl or chloroacetyl, R<SP>1</SP> denotes lower alkyl of a maximum of 6 carbon atoms, alkoxyalkyl or chloro, R<SP>2</SP> denotes hydrogen or lower alkyl of a maximum of 4 carbon atoms, R<SP>3</SP> denotes nitro or chloro, and R<SP>4</SP> denotes hydrogen, chloro or methyl, and a benzothiadiazinone dioxide compound of the formula b) where R denotes lower alkyl of a maximum of 4 carbon atoms, or a salt thereof. The compositions find application in the protection of crop-plants from unwanted plants.
Patent GB-622090-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K19/20
Filed: 1947-03-12
Abstract: 622,090. Alternators. ALLEN, F. J. March 12, 1947, No. 6930. [Class 35] In a machine with an axially magnetized rotor having a set of poles at each end with radially directed pole faces, the stator has an untoothed core laminated transversely to the rotor axis and an outer member providing an axial flux path. As shown, the windings are in the part 18b of the core which has slots opening outwards and closed by the part 18a, while the yoke 17 and the rotor 10 complete the magnetic circuit. The exciting coil 20 may be fixed or rotary.
Patent GB-309947-A (GB)
Title: Improvements in the electrical separation of rubber from rubber latex
IPC: C25D13/22
Filed: 1929-03-04
Abstract: 309,947. Siemens & Halske Akt.- Ges. April 18, 1928, [Convention date]. Addition to 307,747. Latex, coagulating.-Rubber deposited from latex on an electrode or on a porous mould in front of the electrode by alternating current according to the parent Specification is immersed immediately after leaving the electrolytic bath and while still on its support in an acid solution, e.g. acetic acid, weak hydrochloric acid or carbonic acid. Specification 298,117 is referred to.
Patent GB-194722-A (GB)
Title: Means for locking the breech bolt in automatic weapons having a movable barrel
IPC: F41A3/36
Filed: 1923-03-12
Abstract: 194,722. Revelli, B. A. March 13, 1922, [Convention date]. Machine guns.-The breech-blcck of an automatic gun having a recoiling barrel is locked to the barrel extension by a bolt mounted on the non-recoiling frame and having teeth passing through apertures in the barrel extension into engagement with the breech-block, the locking bolt being so guided that it prevents the return of the barrel until the breech-block has returned to the locking position. In the construction shown, the locking-bolt 3 is mounted by camslots 7 on two studs 8 on the frame. The bolt has four teeth 4 passing through holes in the barrel extension 1 and entering notches 6 in the breech-block 2. When the barrel recoils, the inclined parts of the slots 7 engage the studs 8 and the locking-bolt is depressed to unlock the breech-block which then recoils alone. The teeth 4 remain in engagement with the holes in the barrel extension and, by bearing against the underside of the breech-block, prevent the locking-bolt from rising and moving forwards, the barrel being thereby held against forward movement until the breech-block returns. In a modification, the locking-bolt is mounted on two pivoted links which cause it to move backwards and downwards.
Patent GB-1241646-A (GB)
Title: Catalytic cracking of isobutyraldehyde
IPC: C07C1/207
Filed: 1970-02-13
Abstract: 1,241,646. Butyraldehyde. RUHRCHEMIE A.G. 13 Feb., 1970 [3 April, 1969], No. 7099/70. Heading C2C. [Also in Division C5] In an oxo process for producing n-butyraldehyde as the desired product from propylene, carbon monoxide and hydrogen, the unwanted isobutyraldehyde also produced is catalytically cracked to yield propylene, carbon monoxide and hydrogen, which are recycled. The cracking is performed in the gaseous phase at 200- 400‹ C. under a pressure of 0À 1-20 -atmospheres, using a catalyst comprising rhodium and/or platinum.
Patent GB-883659-A (GB)
Title: Improvements in butterfly valves
Inventor: MASHEDER HENRY ALBERT
IPC: F16K1/228
Filed: 1957-03-04
Abstract: 883,659. Valves. GORDON & CO. Ltd., JAMES. March 3, 1958 [March 4, 1957], No. 7167/57. Class 135. A butterfly valve closure 22, Fig. 1, is mounted on a shaft 23 that is shorter than the internal diameter of the casing; the shaft is supported in a bridge and operated from a spindle 28 through a rack 26 and a pinion 27. A hollow metal-sealing ring 29, secured to the closure, accommodates an electric heating element which, with the closure in the position shown, is energized over pins 31, 32 so expanding the ring and applying a sealing pressure between the closure and casing. - In another form, the heated ring 34, Fig. 2, may be disposed in the casing and contain three heating elements 37, the ring being sealed by a flexible steel ring 38, the outer edge of which is welded to the casing. In this embodiment the heating elements are energized when the closure 40 is unseated and switched-off when the valve is closed, whereupon the ring 34 shrinks and tightens round the closure. The ring may be engaged by a sealing washer welded to the easing. The heating element may be supplied with current through a conductor in a conduit enclosed in a cap welded to the casing. Expansible sealing rings may be fitted to both the casing and the closure and the heating thereof may be effected by the circulation of fluid through or about the ring or rings. Specification 824,569 is referred to.
Patent GB-1222401-A (GB)
Title: Electrical discharge machining pulse current control apparatus and method
IPC: B23H1/02
Filed: 1968-02-14
Abstract: 1,222,401. Electro-erosion. ELOX Inc. 14 Feb., 1968 [1 Feb., 1967], No. 7284/68. Heading B3V. [Also in Division G3] An electrical discharge machining apparatus, of the type including an electrode servo feed system to maintain optimum working-gap spacing and having a power supply furnishing working pulses to the gap, is provided with a control circuit which reduces the power content of the working pulses in response to the effect on gap discharge of abnormally high resistance and of abnormally low resistance across the gap. As shown, power pulses are supplied to the working gap of an E.D.M. machine, the gap being defined by an electrode 130 and a workpiece 128 and the pulses being derived from a D.C. source 132 by way of a switching transistor 110 controlled by a multi-vibrator. A circuit including transistors 312, 314 is connected across the gap to detect abnormal conditions, and produces at point P a signal which is applied to the multi-vibrator in a sense to narrow the power pulses applied to the gap, the on-time and off-time of the pulses being varied selectively so that the electrode and workpiece are protected against possible damage due to short-circuits &c. A suitable multi-vibrator circuit is described with reference to Fig. 1 (not shown), and a further embodiment which also alters both the on-time and the off-time of the pulses is described with reference to Fig. 2 (not shown).
Patent GB-1099853-A (GB)
Title: Process for producing modified propylene polymer
IPC: C08F297/08
Filed: 1965-02-19
Abstract: Modified propylene polymer is obtained by polymerizing one of propylene and ethylene and immediately afterwards polymerizing the other in the presence of the product of the first polymerization at a temperature of 30 DEG  to 100 DEG C. and a pressure of 1 to 10 atmospheres in the presence of a mixture of a dialkyl aluminium monohalide and titanium trichloride as catalyst, the polymerization of ethylene being effected in the presence of an average of 0 to 25% of propylene based on the total volume of the gaseous reactants and the amounts of propylene and ethylene fed to the reaction system being adjusted so that the final polymer contains 5 to 40% by weight of polymerized ethylene and the polymerization of propylene being continued until at least 300 parts of polymer are formed per part of TiCl3.  The product of the reaction is stated to be a mixture of (a) polypropylene, (b)polyethylene or a random copolymer of ethylene and propylene, and (c) a block copolymer of polypropylene and polyethylene or the random copolymer of ethylene and propylene. Hydrogen may be present during the polymerization.
Patent GB-1373072-A (GB)
Title: Method and apparatus for removing salt efflorescences from coarse and painted surfaces
IPC: B08B3/10
Filed: 1973-02-15
Abstract: 1373072 Cleaning buildings, &c. INSTITUTUL DE CERCETARI IN CONSTRUCTII SI ECONOMIA CONSTRUCTIILOR-INCERC 15 Feb 1973 7381/73 Heading A4F [Also in Division C7] Salt efflorescences are removed from a coarse or painted surface by applying thereto a waterimpregnated porous medium containing an anode and cathode to which a D.C. potential is applied, thereby drawing the salt efflorescence from the surface into the medium by electro-osmosis. As shown salt 7 impregnating surface 3 is removed using a structure comprising electrodes 2 of silver or stainless steel wire mesh positioned between layers 1 of absorbent material e.g. sponge, felt or gauze impregnated with distilled water.
Patent GB-502766-A (GB)
Title: Improvements in or relating to separating and/or grading granular material
IPC: B07B4/02
Filed: 1938-03-10
Abstract: 502,766. Pneumatic separating. LEIGHTON, J. M. March 10, 1938, No. 7473. [Class 117] . A pneumatic separator comprises feeding means for the material and a series of air or like jets.arranged at the bottom of an air or gas passage which increases in cross section from the jet at the feed end to the other end, each jet being of such strength and being so directed that a part only of the material is passed on to the next jet, the remainder falling into a receptacle. In the form shown, the material leaving the hopper 1 passes over a roller 2 and shoot 5 to the most powerful jet 6 where a high proportion of the largest bodies drop into the first hopper 23. The remainder passes on and falls into one of the succeeding hoppers excepting the dust, which passes into a collector 18. The intensity of the other jets decreases from 9 to 13. The separation of dust from the particles may be facilitated by their impacts with appropriately placed baffles 8. The air may be circulated in an open or closed circuit.
Patent GB-609525-A (GB)
Title: Propeller with self-regulating variable pitch
IPC: B64C11/34
Filed: 1946-03-11
Abstract: 609,525. Variable-pitch propellers. COMPAGNIE GENERALE POUR L'EQUIPEMENT AERONAUTIQUE. March 11, 1946, No. 7476. Convention date, April 30, 1945. [Class 114] The blade 3 of a variable pitch propeller moves radially outward under centrifugal force against the elastic resistance of air contained in a bladder 9. The pressure of this bladder is transmitted by liquid in the cylinder 7, pipe 8 and cylinder 4<SP>1</SP>, acting on the piston 6. Rotation of the blade is caused by the cam slot 12. In a modification the air pressure in the bladder is under the control of the aircraft pilot. In a further modification the cam slot is replaced by a helical screw engaging the blade root.