baber/WOPTO huggingface dataset:
Patent GB-274991-A (GB)
Title: Improvements in or relating to sound amplifying horns for gramophones, loud speakers, and other like sound-reproducing apparatus
IPC: G10K13/00
Filed: 1926-05-31
Abstract: 274,991. Cullum, H. J. May 31, 1926. Sound magnifying and directing appliances. - A horn having a passage c - - of zig-zag formation is formed by the insertion of oppositely-disposed partitions walls i, j, k into a chamber formed between a flat base a, an upstanding side wall h of varying height, and a top member b. The latter is provided with oppositely-directed slits l and is fitted in the manner shown in Fig. 2 so as to produce an expanding sound passage. A flare g may be formed by extensions of the base a, the side wall h, and the partition k. The inner ends p of the partitions may be bent, as shown, so as slightly to compress the sound waves. The base member a may be larger than the base of the sound passage and may be fitted to a board forming part of a gramophone cabinet with an interposed layer of sound absorbing or insulating material. When arranged in a gramophone cabinet, the portions c - - f may be arranged vertically at the back or at one side and an additional flare directed to the front of the cabinet may be provided.
Patent GB-1040432-A (GB)
Title: Improvements in and relating to box wrapping apparatus
Inventor: WILLIAMS ALBERT HENRY
IPC: B31B15/00
Filed: 1963-04-06
Abstract: 1,040,432. Feeding sheets. CALEDEX MACHINE CO. Ltd. April 6, 1964 [April 6, 1963; May 29, 1963], Nos. 13771/63 and 21383/63. Heading B6B. [Also in Divisions B5 and B8] A device for lifting and transporting a sheet is provided with at least one orifice in its lower surface through which air is blown to create a low pressure zone between the sheet and lower surface. The orifice comprises a simple aperture, or an annular or linear slot. As shown in Fig. 16, the air is blown from a slot 45 and redirected along the under-side of the sheet by a deflector 95. As described, the device is used to transport adhesively-coated wrappers in a box-wrapping machine (see Division B5).
Patent GB-1124316-A (GB)
Title: Process for the manufacture of 2,2,3-trichlorobutane
IPC: C07C17/087
Filed: 1967-03-23
Abstract: 2,2,3-Trichlorobutane is prepared by reacting 2,3 - dichlorobutene - 2 with hydrogen chloride at 100-250 DEG  C. and a pressure of at least 150 atmospheres gauge.  A catalyst may be present, e.g. SnCl4, SbCl5, HgCl2, FeCl3, I2, MgCl2 or CuBr, or the reaction may be conducted in a stainless steel autoclave which has a catalytic effect on the reaction.  The 2,2,3-trichlorobutane may be dehydrochlorinated to chloroprene, 2,3-dichlorobutene-2 formed as a by-product being converted to 2,2,3-trichlorobutane in accordance with the above process.
Patent GB-1203133-A (GB)
Title: Improvements in thermostatic valves
Inventor: LAWRENCE TREVOR KENDALL
IPC: F16K31/64
Filed: 1968-03-21
Abstract: 1,203,133. Valves. RANCO CONTROLS Ltd. 18 March, 1969 [21 March, 1968], No. 13838/68. Heading F2V. A thermostatically operated valve comprises a housing 1, 2 that can be split for cleaning, with a closure member 5 moved by a power element 6, the setting of the closure member being variable by a nut 10 on a rod 9 fixed to the element 6, and a spring 11 mounted on the nut having one or more fingers 12 to locate in teeth 19 of a washer 18 non-rotatably mounted on the rod 9 to lock the setting of the valve when the housing is split. When the valve is assembled, the fingers 12 are retracted by cage 14 on a tapered plug cock 3, Fig. 1, having a driving connection with the nut 10 enabling the setting to be adjusted by rotation of the cock. Initially the setting is adjusted by a calibration stem 7 having a lock-nut 8. The washer 18 may have a serrated edge instead of the teeth 19, or its upstanding flange may have holes. The cock 3 may be a rotary disc valve.
Patent GB-1460860-A (GB)
Title: Production of 1-amino-4-hydroxyanthraquinone-2-alkyl ethers
IPC: C07D295/18
Filed: 1974-03-29
Abstract: 1460860 Preparing anthraquinone dyes BASF AG 29 March 1974 [31 March 1973] 14008/74 Heading C4P Compounds of the general formula wherein A is a chemical bond, a C 1 -C 11  alkylene or alkenylene radical which may contain the bridging member -O-, R is H, Cl, Br, OH, alkoxy, cyanoalkoxy or hydroxyalkoxy having 1-4 carbon atoms in the alkoxy radical, phenyl or phenoxy optionally substituted once or twice by Cl, Br, methyl, methoxy and/or ethoxy or is a -COOR<SP>1</SP>, -OCOR<SP>1</SP>, -CON(R<SP>2</SP>)- R<SP>3</SP> or group wherein R<SP>1</SP> is H or a C 1 -C 6  alkyl group, R<SP>2</SP> and R<SP>3</SP> are H or C 1 -C 4  alkyl optionally substituted by OH, methoxy or ethoxy or R<SP>2</SP> and R<SP>3</SP> together may complete a 5- or 6-membered heterocyclic ring which may also contain one or more oxygen, sulphur, or further nitrogen atoms, n is 1 or 2 and m is 3 or 4 are prepared by reacting 1-amino-2,4-dihydroxyanthraquinone with a compound wherein Hal is Cl or Br and A, R and n are as above in a polar solvent in presence of an agent having a basic reaction. In preferred embodiments, the reaction takes place at 40-180‹ C. using 1À0 to 1À5 moles of the haloalkyl compound per mole of 1-amino-2,4-dihydroxyanthraquinone and 1À0 to 1À2 equivalents of the agent having a basic reaction per mole of haloalkyl compound. The agents having basic reaction include alkali metal hydroxides, alcoholates, carbonates and hydrogen carbonates and mixtures thereof. The polar solvents include dimethylacetamide, dimethylformamide, dimethylsulphone, dimethylsulphoxide and N-methylpyrrolidone. The dyes dye or print secondary acetate rayon, polyamides and polyesters.
Patent GB-693633-A (GB)
Title: Improvements in or relating to methods of preparing polymers
IPC: C08F20/44
Filed: 1950-06-06
Abstract: Polymers containing 92 to 100 per cent of acrylonitrile and up to 8 per cent of another monomer such as vinyl acetate, ethyl acrylate, methyl methacrylate, styrene, and vinylidene chloride are prepared by gradually adding the acrylonitrile, or mixture of acrylonitrile and the copolymerizable monomer in the desired proportions, to water at the reflux temperature containing 0.5 to 2.0 per cent of an alkali metal persulphate and 0.05 to 0.20 per cent of an alkali metal soap of mahogany acids.  Also present in the reaction mixture may be molecular weight regulators such as t.-dodecyl mercaptan, or carbon tetrachloride.  The reaction may be carried out batchwise or continuously, and the required amount of catalyst and emulsifying agent may be charged initially, or else may be charged periodically or continuously during the reaction.  Polymerization is preferably stopped as soon as the last portion of monomer has been added, by the addition of an inhibitor, by steam distillation, or by precipitation of the emulsion by rapid stirring, freezing, or the addition of ethyl alcohol or an electrolyte.  The polymers produced are suitable for forming fibres.  Specification 663,268 is referred to.
Patent GB-402065-A (GB)
Title: Method of constructing built-up doors, panels and the like
IPC: E06B3/70
Filed: 1932-05-18
Abstract: 402,065. Door bodies ; panels. PINTO, E. H., 44, Chilton Court, Clarence Gate, and BOVIS, Ltd., 35, High Street, Marylebone, both in London. May 18, 1932, No. 14123. [Classes 20 (iii) and 20 (iv).] A built-up door, panel, or the like, comprises an inner rectangular framework consisting of a number of wooden strips 1 arranged parallel to each other and longitudinally of the frame, the strips being spaced apart by short strips 2 disposed in staggered formation and at right-angles to the longitudinal strips to form a plurality of rectangular cells 3. The framework is closed at the top and bottom by bars 4, at the sides by facing strips 5, and at the front and back by a ply facing 6. The framework may be constructed by first forming a plurality of ladder-like structures, each comprising two strips 1 and a plurality of strips 2, and interconnecting them by means of further staggered strips 2. One or more cells may be filled in to allow for the cutting in of locks and other fittings, and openings may be left for glass panels, letter-boxes, &c.
Patent GB-1006580-A (GB)
Title: Organic phosphites
IPC: C07F9/6574
Filed: 1962-04-12
Abstract: An organic phosphite ester, preferably having a mol. wt. of at least 100, and with a recurring structural unit of formula <FORM:1006580/C3/1> in which Q is the arylene residue of a dihydric phenol or a halogen derivative thereof may be prepared by transesterifying a 3,9-dialkoxy-, or diaryloxy - 2,4,8,10 - tetraoxa - 3,9 - diphosphaspiro [5,5]-undecane (see Specification 32476/61) with a di-(hydroxyacryl) alkylidene, a di-(hydroxyhaloary)alkylidene, dihydroxydiphenyl, a monocyclic dihydric phenol, a di(hydroxyary) sulphone, a di - (hydroxyaryl)-sulphide, a di - (hydroxyaryl)sulphoxide, or hydrogenated bisphenol A, by heating with a transesterification catalyst.  If desired, part of the dihydroxy compound may be replaced by a dihydric alcohol.  In a further modification the spiro compound may be formed in situ from pentacrylthritol and a tertiary phosphite.  The mol. wt. of the products may be controlled by addition of monofunctional reactants, e.g. decyl or stearyl alcohol, phenol, cresol or nonyl phenol. Reaction may be in presence of a catalyst, e.g. diphenyl phosphite, didecyl phosphite, phenyl decyl phosphite, di-(2-methylphenyl) di - (4 - dodecylphenyl)phosphite, di - (2 - chlorophenyl)phosphite, di - (2,4 - dimethylphenyl)phosphite, di - (4bromophenyl) phosphite, dioctadecyl phosphite, sodium phenolate, sodium decylate, potassium cresylate, sodium ethylate, or sodium octadecanolate. In examples diphenyl pentacrythritol diphosphite and diphenyl phosphite were heated with (1), (2) and (12) bisphenol A; (3) di - (4 - hydroxyphenyl) sulphone; (6) tetrachlorobisphenol A; (7) a mixture of bisphenol A and diethylene glycol; (8) resorcinol; (9) hydrogenated bisphenol A; (10) bis - (3methyl - 4 - hydroxy - 5 - t. - butylphenyl)methane; (11) tetrabromobisphenol.  In Examples (4), (5) a mixture of bisphenol A, triphenyl phosphite and pentacrylthritol were heated in presence of diphenyl phosphite.  The products are useful as stabilizers for polymeric materials, flame retardants, dyeing assistants, anti-static agents, lubricating additives, or plasticizers.  Specification 1,002,321 is referred to.
Patent GB-909396-A (GB)
Title: Improvements in fluid-pressure springs
Inventor: TREVASKIS HENRY WILLIAM
IPC: B60G11/27
Filed: 1958-05-03
Abstract: 909,396. Pneumatic springs. DUNLOP RUBBER CO. Ltd. April 20, 1959 [May 3, 1958], No. 14184/58. Class 108(3). In an air spring the rebound stroke is controlled by providing a flexible end wall 11, Fig. 1, which is progressively withdrawn from an end closure 2 by a rod 16 when a plunger member 6 abuts a resilient buffer 18. For small deflections, the plunger member 6 moves into and out of a container 1, to which it is connected by a rolling diaphragm 8, without abutting the stop member 18. As the flexible end wall 11 is drawn away from the end closure 2, air pressure acting upwardly on the unsupported area of flexible end wall tends to progressively check further downward movement of the plunger. By stepping the sides of the container 1, the flexible end wall may be made of greater diameter than the rolling diaphragm 8. The invention may be applied to a piston and cylinder type air spring in which a piston similar to the plunger 6 slides in a cylinder which is an extension downwardly of the container 1. An embodiment employing a double convolution bellows 21, Fig. 2, has a flexible end wall 11, which is moved downwardly when a rigid end wall 23 abuts a buffer member 18 carried by a rod 16.
Patent GB-611871-A (GB)
Title: Improvements in and relating to earth leakage devices for electrical apparatus
IPC: H02H3/16
Filed: 1946-05-11
Abstract: 611,871. Protective cut-out arrangements. WIMSETT, S. J., and RECORD ELECTRICAL CO., Ltd. May 11, 1946, No. 14295. Addition to 580,787. [Class 38 (v)] The earth-leakage device of the parent Specification is modified in that the pilot coil 5 connected between the frame-terminal 9 and earth 11, and the current coil 6 connected between terminal 9 and neutral 10, are mounted end-to-end to constitute a solenoid, the plunger of which bridges contacts 16 in the circuit of coil 6. If the resulting current is insufficient to blow the fuse and clear the fault, the heat generated in the coil 6 causes bimetal strips 12, 13 to make a short-circuit about the coil 6, the resulting decrease in impedance blowing the fuse. The coil 5 may be energized by voltages of 40 to attract the plunger, and by voltages of 20 to sound a buzzer. The Provisional Specification refers also to indicating a major fault visibly by a flag and audibly by a " noisy " armature.
Patent GB-1273534-A (GB)
Title: Improvements relating to power driven abrading machines
IPC: B24B23/02
Filed: 1968-03-26
Abstract: 1,273,534. Abrading. J. S. WOOD and C. S. WOOD [trading as SPURWOOD DEVELOPMENT CO.]. 23 June, 1969 [26 March, 1968], no. 14383/68. Heading B3D. An abrading machine comprises an abrasive cylinder or wheel 56 having a carbide abrasive material 108 on its surface, a driving motor unit 34, and a base unit 12 having a slot 96 through which the cylinder 56 operatively projects. The abrasive material 108, supported on a metal backing sheet, may be attached to the cylinder 56 by screws 116 through clamping portions 110, the cylinder 56 being rotatable on a spindle 58 removably held in grooves (61), Fig. 2 (not shown), in side walls 16 of a body 10 by catches 62 biased in an over-centre manner by springs 64. The cylinder 56 is driven by a belt 48, adjustable in tension by longitudinal sliding of the motor unit 34 on the body 10, controlled by a thumb screw 72. The base unit 12 is pivoted by lugs 82 to the body 10, and the projection of the cylinder 56 is adjusted by a pair of transversely spaced thumb screws 92, rotatable but axially fixed in the body 10, and screw-threaded to a flange 90 rigid with the base unit 12. Abraded material is collected in a receptacle 22 formed by the interior of the body 10 and lined at least partly with a sound deadening and sealing material 32, a hinged door 20 allowing discharge. In a modification, Fig. 4, a cam bar 118 pivoted on a thumb screw 120 has steps 122- 126, positionable below the heads of the thumb screws 92 to provide for coarse adjustment of the projection of the cylinder 56, the screws 92 in this case being axially movable relative to the body 10, but downwardly biased by compression springs (132), Fig. 5 (not shown), between the body 10 and the flange 90.
Patent GB-576502-A (GB)
Title: Improvements in and relating to butter conditioners in refrigerators
IPC: F25D23/12
Filed: 1943-09-03
Abstract: 576,502. Refrigerators. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 3, 1943, No. 14425. Convention date, Sept. 3, 1942. [Class 29] A receptacle 12 for storing butter &c. in a relatively warm condition is disposed in a recess in the insulation of a domestic cabinet so as to receive heat through a reduced thickness of the insulation, and a heat conductive member is provided for putting the walls or interior of the receptacle into heat conductive connection with the interior of the colder storage space when the receptacle becomes too warm. A vessel 18 containing mercury or other expansible medium projects through a wall of the receptacle and a heat conductive strip 21 in contact .with the liner 13 of the cabinet projects into the upper part 17 of the vessel so as to make contact with the mercury &c. when the latter expands, and thereby reduce the temperature of the receptacle. In a modification, Fig. 4, a coiled bi-metallic strip 27 in thermal contact with the butter receptacle 12 makes contact, on change of temperature of the receptacle, either with a heat-conducting projection 26 from the outer wall 14 or with a similar projection 25 from the liner 13 of the cabinet. Electric heating means may be fitted to the receptacle.
Patent GB-1469183-A (GB)
Title: Apparatus and method of shaping a bell end on a pipe
IPC: B29C57/06
Filed: 1974-04-02
Abstract: 1469183 Belling the end of a pipe POLVA-NEDERLAND BV 2 April 1974 [5 April 1973] 14553/74 Heading B5A  The heated end of a thermoplastics pipe 1 is belled by engagement over a shaping mandrel 5 which comprises a base part 7 co-operating via ribs and grooves 39 with ribs and grooves 41 of a slidable sleeve 15. When assembled for belling as in Fig. 1, the base part and sleeve support a radially expanded resilient rubber ring 13, and are clamped together by the piston-rod 28 of a cylinder 25. The ring 13 embeds a snaked spring steel wire adjacent its inner edge 17. In operation, the heated pipe 1 is clamped by a split clamp 4, which moves the pipe over the assembled mandrel 5, shaping being aided by a split external die 24 and an annulus 23. When the pipe has cooled, the piston-rod 28 is moved to the right to release the clamping of the base part 7 and sleeve 15. The annulus 23, cylinder 25 and base part 7 move to the left so that the ring 13 contracts and is pushed by the bell end down an inclined plane 37 of the base part (see Fig. 2). Finally, the piston-rod 28 is moved back to the left to remove the sleeve 15 and ring 13 from the pipe end, push the ring 13 back up the inclined plane 37, and so reassemble the mandrel for further use.
Patent GB-314189-A (GB)
Title: Improvements in or relating to building material hoisting apparatus
IPC: B66B9/187
Filed: 1928-05-17
Abstract: 314,189. Jackson, L. Mellersh-, (Insley Manufacturing Co.). May 17, 1928. Winch-actuated hoists with guided carriers.- A builders' hoist comprises a lattice mast A braced from the building by stays C, the mast being provided with oppositely-projecting flanges 12, entirely free of the bracing means, forming runways for one or more platforms 30 or other carriers at one or both of the faces D, E of the mast perpendicular to the face of the building. The stays C, shown in plan and elevation in Figs. 7 and 8, are braced girders with upper and lower channel members 15 adjustably secured thereto for varying the length. The members 15 extend through the mast and are secured to angle-members 17, 18 on the latter by bolts 16. The bolt holes in the member 17 are slotted to provide for adjustment. The vertical flanges of the angle irons 17, 18 fit between the verticals 13 of the mast and are clamped to the lattice bracing 11, as shown in Fig. 13. Platforms 30, which may be large enough to take a workman and barrow, are supported on carriages 31, Fig. 3, with rollers 32, 33 running on the flanges 12 of the mast. The carriages are worked by cables 35 passing over sheaves at the top of the mast, and down through the mast to sheaves 37 and a winding drum. For handling concrete or fireproofing material, one of the carriages as shown at 31', Fig. 3, may carry a tip-bucket 40 discharging into a hopper 46 on a frame 45 which may be secured at any height on the opposite face of the mast. The hopper 46 delivers to a shoot system 47 leading to any part of the building. The bucket 40 is pivoted on the carriage 31<1> and is tipped by rollers near its mouth entering guides on the frame 45, the rollers passing through and beyond the guides as the bucket is hoisted at high speed.
Patent GB-774592-A (GB)
Title: Adjustable propulsion nozzles
Inventor: HALFORD FRANK BERNARD
IPC: F02K1/12
Filed: 1954-05-18
Abstract: 774,592. Jet-propulsion plant. DE HAVILLAND ENGINE CO., Ltd. April 22, 1955 [May 18, 1954], No. 14592/54. Class 110 (3). A variable area nozzle comprises a series of overlapping flaps G, H hinged at their ends about axes tangential to a circle having its centre on the axis of the jet pipe, the cross-section of the flaps being arcuate at the hinged ends and of large angle V-shape at the outer ends. Graphite sealing strips J are provided at the overlap. The jet pipe is of convergent form and the flap portion is variable between convergent and divergent form. The flaps are hollow as shown at G4, H4, Fig. 4, and are provided with flanges F secured rigidly to hinge pins E carried in bearings D mounted in housings D<SP>1</SP> rigid with a hollow supporting ring B, Fig. 5. The pins carry levers L coupled by connecting rods M to the doubleacting pistons of pneumatic cylinders M2 carried by the supporting ring. The jet pipe comprises inner and outer walls A, A<SP>1</SP> and the outer end of the flaps are curved at G3, H<SP>3</SP> and then continued backwards at G2, H2 to make sliding engagement with the outer walls of the jet pipe and to enclose the pneumatic cylinders and the hinge pins in a space K. Cooling air is supplied from the compressor of the turbine unit to the supporting ring by a pipe N and passes therefrom through the hollow hinge pins to the hollow flaps and escapes through openings G<SP>5</SP>, H<SP>5</SP> in the curved portions of the flaps. A tapping from the pipe N may be taken into the space K.
Patent GB-1382330-A (GB)
Title: Window-operating apparatus
IPC: E05F11/48
Filed: 1972-03-29
Abstract: 1382330 Operating windows T SESSA 29 March 1972 [28 May 1971] 14724/72 Heading E2M [Also in Division B8]  A device for operating a window, for example of a motor vehicle, comprises a cable 12 wound on a drum 11 coaxial with an operating shaft 13, and a saw-toothed crown gear 15 fixed to the drum and meshing with a similar gear which is urged against it by a spring 17, the ends 18, 19 of the cable being secured respectively to the gear 16 and to the drum. Thus the tension of the cable, which operates the window, may be adjusted by relative rotation of the two gears.
Patent GB-617268-A (GB)
Title: Cushion pad and method of manufacture
IPC: A47C27/12
Filed: 1946-05-16
Abstract: 617,268. Fabrics composed of fibres agglutinated by adhesive; paper-board. CARBIDE & CARBON CHEMICALS CORPORATION. May 16, 1946, No. 14782. Convention date, May 29, 1945. [Classes 96 and 140] [Also in Group XXXII] A resilient pad comprises a core and a rubber-like covering integrally bonded with the surface of the core, the core consisting of a "crushed" mixture of pulped newspaper or wood pulp of average individual fibre length not in excess of about 0.03 inch and finely divided palmetto pith, powdered cork or hibiscous wood and an organic binder; and the covering comprising natural or synthetic rubber or synthetic resin. By "crushed" is meant the application of high pressure for a brief period followed by the immediate release of pressure. The "crushing" may be applied to the pad either before and/or after the covering is applied. Preferably the core is "crushed" by a pressure of from 250 to 1,500 lbs. per square inch and after the application of the covering a further pressure of from 50 to 750 lbs. per square inch applied. The core is made by forming a slurry of the above components which is then either formed into a continuous fibrous sheet as in a paper-making process or the slurry is run into moulds of the desired core shape, the water drained off and the remaining matrix dried. When the slurry is formed into a continuous fibrous sheet the sheet may be cut to give a final pad of the desired thickness or several sheets may be cemented together for example, with rubber cements, glue or phenol-formaldehyde adhesives. The covering may be applied to the core by dipping or spraying on a dispersion, solution, or a melt of the desired natural or synthetic rubber or synthetic resin and the applied coating may contain plasticizers, vulcanizing agents and accelerators. After coating the pad is dried and if desired vulcanized. The rubbers may be latex or reclaimed rubber; the resins may be resins based upon butadiene, vinyl chloride, styrene and co-polymers of vinyl acetate. The pads may be used as kneeling mats, cushions and vibration dampers.