baber/WOPTO huggingface dataset:
Patent GB-1404751-A (GB)
Title: Scraper chain conveyors
IPC: B65G19/24
Filed: 1971-08-09
Abstract: 1404751 Scraper chain conveyer R B BOLTON (MINING ENGS) Ltd 8 Aug 1972 [9 Aug 1971 (2)] 12194/71 and 37239/71 Heading B8A A single chain scraper conveyer has flights pivoted to the chain, each flight having an abutment which during the conveying run bears against a member forming part of or attached to the chain to locate the flight across a trough along which material is conveyed, the flights trailing behind their pivots on the return run of the conveyer. In Fig. 2, of provisional Specification 12194/71 abutment 16 bears against member 18 mounted on the horizontal link adjacent the vertical link to which the flight 10 is pivoted. Wear pad 19 protects the chain, sidewall 14 and inner side wall 22 of the chain cover and assists, in co-operation with a cam surface on the cover of the tail end of the conveyer, in positioning the flight correctly for the conveying run. In Fig. 1, of provisional Specification 37239/71 abutment 62 bears against abutment 64 forming part of wear pad 19 which comprises two members 65, 66 embracing a vertical link 67 of the chain. The flight 10 is pivoted to the wear pad block assembly 19 and thus to the vertical link 67.
Patent GB-418569-A (GB)
Title: Improvements in optical range-finders
IPC: G01C3/14
Filed: 1934-04-23
Abstract: 418,569. Range - finders. AKT.-GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho- Slovakia. April 23, 1934, No. 12215. Convention date, April 28, 1933. [Class 97 (i).] In a range-finder in which the viewing direction remains fixed as the inclination of the plane of triangulation is varied, the rays diverging from each of the measuring mark plates are passed through an inverting lens before being deflected at right-angles into the eyepiece tube and are then passed through an erecting prism rotatable at an angular velocity equal to half the velocity of the rotation of the plane of triangulation. In the form shown, the objectives 3, mark plates 4, and inverting lenses 5, are mounted in tubes 2 secured to the rotatable tube 1, and the reflecting prisms 7 are carried by the fixed eyepiece tube 10. The plates 4 are in the focal planes of the lenses 5 and further lenses 8 are provided to image the marks in the foci of the eyepiece lenses 9. The erecting prisms 6 are mounted in tubes 6a carrying bevel wheels 11 engaging with bevel wheels 2a on the tubes 2 and with bevel wheels 10<a> on the fixed tube 10. The lenses 8 may be dispensed with by arranging the lenses 5 so that their foci lie between them and the plates 4. In a modification, the prisms 7 are arranged between the lenses 5 and the prisms 6, the latter then being rotatable about the eyepiece axes.
Patent GB-141214-A (GB)
Title: Improvements in or relating to valve gear for steam engines
IPC: F01L31/16
Filed: 1919-05-16
Abstract: 141,214. Herve, L. May 16, 1919. Cam gears.-A supplementary cam gear, for use in connexion with gears of the Stephenson, Gooch, Allan, Walschaert, Joy, and Baker type, is connected to and operated by the last member of the ordinary link or motion employed, and imparts an irregular motion to the valve to increase the exhaust and expansion periods, and, if desired, also the admission perlod. The valvemotion rod is provided with a head d having a vertical slot h, and the valve spindle has a head c with an inverted-V slot g. Pins f, f<1 >engage these slots and also slots k, i respectively, in plates e, Figs. 2, 3, and 5, which are mounted on either side of the heads, and the ends of the pins engage grooves b in stationary guides a. The grooves b are provided with straight and angular portions b<1> - - b<7> to produce the desired modification in the motion produced by the primary gear. An application of the gear t to a Stephenson motion is shown in Fig. 9. A modification is described wherein the expansion only is affected.
Patent GB-294976-A (GB)
Title: An arrangement for the testing of electric resistances by means of a cross coil instrument
IPC: G01R27/02
Filed: 1928-04-27
Abstract: 294,976. Siemens & Halske Akt.-Ges- Aug. 3, 1927, [Convention date]. Addition to 288,288. Resistances and inductances, measuring; temperature errors compensating for.-The apparatus claimed in the parent Specification is modified so that the cross-coil instrument may be installed at a distance from the bridge connection without errors due to the resistance of the leads. The resistance of the directing-moment coil r is calculated with reference to the bridge resistance a<1> - - a<4> and the resistance in the diagonal branch g, in accordance with formulµ given in the Specification, so as to compensate for the resistance of the leads z<1> - - z<4> for both cross coils g, r. In the construction shown in Fig. 1, the directing- moment coil is connected, in series with an auxiliary resistance d, across the voltage source b, the voltage applied to the directing-moment branch being always proportional to the voltage of the source b, independently of changes in the bridge resistances a<1> - - a<4>. In the modification shown in Fig. 2, a high resistance c is connected in series with the bridge so that the current through the bridge is practically independent of changes in the resistances a<1> - - a<4>. The coil r, in this case, is assumed to be wound to the required resistance without the addition of an auxiliary resistance d. In order to compensate for temperature changes, the two cross coils g, r are made of the same resistance and from materials having the same temperature coefficient, for instance both of the same material. The auxiliary resistance d for the directing-moment coil is calculated, as regards magnitude and temperature coefficient, so as to compensate for changes of resistance of the leads due to temperature.
Patent GB-1523107-A (GB)
Title: Data multiplexing apparatus
IPC: H04Q3/545
Filed: 1977-03-24
Abstract: 1523107 Packet switching STANDARD TELEPHONES & CABLES Ltd 24 March 1977 12430/77 Heading H4K Data is transmitted from a terminal 2 to a CPU 4 via an SPC exchange 1 in the form of messages each containing a destination address portion, an originating identity portion and an intelligence portion. A data call set up through the exchange, is broken down as soon as a message has been sent, thereby minimizing any delay caused to speech traffic through the exchange.
Patent GB-592967-A (GB)
Title: Improvements relating to the pulverizing of solids
IPC: B02C19/06
Filed: 1945-05-18
Abstract: 592,967. Jet pulverizers. INTERNATIONAL PULVERIZING CORPORATION. May 18, 1945, No. 12620. Convention date, July 19, 1944. [Class 59] Apparatus for pulverizing solids by impelling the particles in a high-velocity gas jet against a block or anvil, has the block set in a confined impact chamber having no separating or classifying device and having only one outlet, through which all the impacted solid material is removed in the gas stream through a restricted passageway tangentially into a centrifugal or cyclone separator which is separate from the impact chamber. Washed wet solid is fed through a rotary star feed 12 and a tube 13 into a classifying and separating chamber 14, 16. Compressed air or superheated steam from a pipe 15 carries the solid through a pipe 18 and throws it against an anvil 20 in an impact chamber 19. The gas and shattered particles then pass through a pipe 21 tangentially into the upper part of the classification chamber 14 where the heavier particles fall down into the conical part 16 while the fines are carried out through the pipe 24. Two slightly modified constructions of the apparatus are also described.
Patent GB-910388-A (GB)
Title: Improvements in or relating to rake wheels
IPC: A01D80/00
Filed: 1959-04-14
Abstract: 910,388. Haymaking machines. VAN DER LELY N.V., C. April 14, 1959 [Dec. 24, 1958], No. 12621/59. Class 6(3). In a haymaking machine of the type having rake-wheels fitted with circumferential tines, the tines are secured to the rake-wheel hub 1 and extend outwardly to pass individually through bearing tubes 16 mounted on a wire rim 18, the tines being bent backwardly, relatively to the direction of rotation, outside the rim and being turnable about their radial portions 14 within the rim. The bearing tubes are integral with hook-like tines which extend towards the crop and curve inwardly towards the wheel-axis to support the mass of the crop during turning. The tines have bent-over inner ends which engage in holes in the hub to which they are secured by clamping between a pair of plates 7, 11. The plate 7 is provided with a castellated flange 8 which locates the individual tines.
Patent GB-319805-A (GB)
Title: Improvements in and relating to amino derivatives
IPC: C09B6/00
Filed: 1928-04-30
Abstract: 319,805. Smith, W., Thomas, J., and Scottish Dyes, Ltd. April 30, 1928. Alkyl-and aralkyl-amines; sulphaminic acids; benzanthrone dyes.-Amines in general, including vat dyes containing amino groups, are alkylated or aralkylated by converting them into sulphaminic acids, treating the latter with alkylating or aralkylating agents, and hydrolyzing the products. The preparation of the following bodies is described in examples, the amines being converted into the sulphaminic acids by treating with pyridine sulphur trioxide in pyridine suspension, (1) 2-methylaminoanthraquinone, from 2-aminoanthraquinone and dimethyl sulphate or methyliodide, with and without isolation of the sulphaminic acid, (2) 2-benzylaminoanthraquinone from 2-aminoanthraquinone and benzyl chloride, (3) 2-methylamino-3-chloranthraquinone, from 2-amino-3-chloranthraquinone and dimethyl sulphate, (4) a product from 1 : 4-diaminoanthraquinone and dimethyl sulphate, (5) monomethylaniline from aniline and dimethylsulphate, and (6) methylaminodibenzanthrone, (which dyes cotton in yellower shades of green than aminodibenzanthrone), from aminodibenzanthrone (the reduction product of Caledon green B) and dimethyl sulphate. Other alkylating and aralkylating agents, including substituted alkyl bodies, and other methods of preparing the sulphaminic acids such as by the action of chlorsulphonic acid, oleum, alkyl chlorsulphonates and the like on the amines in the presence or absence of tertiary bases or other diluents, may be employed.
Patent GB-467128-A (GB)
Title: Improvements relating to welding and welded joints
IPC: B23K9/00
Filed: 1936-05-05
Abstract: 467,128. Making expansion joints etc.; uniting by fusion. LOCKWOOD, H. C. May 5, 1936, No. 12679. [Classes 83 (ii) and 83 (iv)] In fusion welding one or more thin gauge metal parts, e.g. of less than <1>/16" for arc welding or <1>/32" for gas welding, to one or more parts of thicker gauge, the end portion of the thin part is placed in contact with the thick part and another thick part is placed on the other side of the thin part so as to define a welding zone into which the end of the thin part projects, and the projecting portion is melted and incorporated in a welding bead while maintaining an integral relationship between the thin part and the head and uniting in integral relationship the head and the thick parts. Thin sheets welded together at intervals on a ragged edge due to overheating are thus avoided. Stainless steel plates may thus be welded to one or more thick plates of stainless or carbon steel and also to each other. In arc welding a thin plate 10 to two thicker plates 11, 12, the parts are placed with their ends in alignment, the parts 11, 12 being preferably bevelled and an arc electrode 16 is first applied to the edge of the plate 11 so as to form a molten bead which melts the projecting portion of the plate 10. The arc is then applied to the edge of the plate 12 to complete the weld. A second deposit may then be applied if necessary, In welding a thin plate or a number of superposed thin plates to one thicker plate, the second thick plate of the first method is replaced by a strip 22, Fig. 3, which forms part of the finished weld. In welding a pair of thin plates 27, 28, Fig. 8, to each other, both thick plates are replaced by strips 29, 30. Instead of bevelled edges, one or other of the thick plates or strips may be arranged in stepped form as shown in Fig. 10, and the weld effected at 36<1>. In a further modification a thin plate 46, Fig. 22, may be similarly welded to an intermediate part of the thick plate. In butt welding, thin plates 55, 56, Fig. 26, strips 57, 58, 59 are placed at opposite sides of the plates and welding effected at 61. The strips 57 may be replaced by a thick plate to which the thin plates are welded. In another form, the end of the thin plate 80, Fig. 32, may be further provided on both sides with protective strips 81, 82, preferably about <1>/16" thick, or a thin-plate 87, Fig. 34, may be provided with a protective strip 88 at one side only. The welding may be effected with a metallic electrode, or a blowpipe with an extraneous metal rod, or the metal of the thin plates may project above the ends of the thicker plates to provide the necessary welding metal, heating being effected by the carbon arc &c. The end plates of the bellows 101, Fig. 36 of an expansion joint may be welded to the terminal plates 102, 103 by providing ring strips 104 at one side of each joint and welding in a manner similar to that as shown in Fig. 10.
Patent GB-1099326-A (GB)
Title: Embossing roller, in particular for the treatment of webs of thermoplastic material
Inventor: GRUNEWALD WALDEMAR
IPC: F16C13/00
Filed: 1966-03-23
Abstract: 1,099,326. Embossing-rollers; embossing- machines. DORNBUSCH & CO. March 23, 1966, No. 12810/66. Headings B6C and B6J. An embossing-machine comprises an impression roller 6 having a rubber-like outer sleeve 7 co-operating with an embossing-roller comprising a support shaft 3 having a rubber-like outer sleeve 4 and a continuous hollow thin-walled copper or aluminium embossing-cylinder 2 supported on the sleeve 7 outside the sleeve 4 to define a space 5 of crescent-shaped crosssection into which, through pipes 10, 8, 7 and an annular groove 12 which receives a cut-off ring 13, is introduced cooling liquid which passes out at both ends into cups 14 leading to a sump. The sleeve 4 may also have a plurality of annular grooves of increasing depth towards the ends of the sleeve.
Patent GB-727570-A (GB)
Title: Improvements relating to the bonding of vinyl chloride polymers to fibre-forming materials
Inventor: GENTLE ALEXANDER HENDERSON
IPC: D06M15/41
Filed: 1951-05-31
Abstract: 727,570. Polyvinyl chloride-coated and laminated fabrics and films; fabrics composed of adhesively-bonded yarns. BRITISH CELANESE, Ltd. May 29, 1952 [May 31, 1951], No. 12882/51. Addition to 680,337. Class 140. Coated, laminated, or composite materials are made by causing a thermoplastic polymer of vinyl chloride, used as a coating or adhesive, to adhere to a synthetic resin coated, heatstable, fibre-forming material composed of a linear polymer containing recurring units of carbon, hydrogen, and an element more electronegative than carbon, the synthetic resin coating on the fibre-forming material consisting of a water-insoluble, alcohol-soluble condensation product of an aldehyde with a phenol in molar proportions between 0.5 and 1.1 to 1. The composite material may be a web of the vinyl polymer reinforced with yarns of the fibrous material, fabrics of the fibrous material coated with the vinyl polymer, a laminate in which fabrics of or containing the fibrous material are bonded together by the vinyl polymer, coated or laminated films made of the fibre-forming material using the vinyl polymer as coating or adhesive. The fabric laminates may be used as conveyer belting or semi-stiff collars and the coated fabrics as printers' blankets. The vinyl chloride polymer, which may consist of vinyl chloride polymerized by itself or with one or more of vinyl acetate, vinylidene chloride, acrylonitrile, or methacrylonitrile, may be applied as a solution, a paste, or a preformed film. Tricresyl phosphate, one of several specified di-esters of phthalic acid, dibutyl adipate, polymeric 1.2-propylene glycol sebacate, and copolymers of butadiene and acrylonitrile may be present as plasticizers for the vinyl chloride polymer, while the solution may be prepared with the aid of mixtures of cyclohexanone or cyclopentanone with acetone or methyl ethyl ketone, carbon bisulphide with acetone, methyl ethyl ketone with methyl isobutyl ketone, or tetramethylene oxide. The linear polymeric, fibre forming material may be natural or regenerated cellulose, e.g. high tenacity continuous filament regenerated cellulose, cellulose acetate, nylon, polyethylene terephthalate, poly-4-amino-1.2.4-triazole, polyacrylonitrile, natural silk, casein, zein, groundnut or soya-bean protein. The fabrics may be woven or knitted from staple fibre or continuous filament yarn, or felts may be coated or laminated. The synthetic resin may be made by condensing an aldehyde such as formaldehyde or acetaldehyde with a phenol such as phenol or resorcinol in molar ratios of between 8.5 and 11 to 10, if desired in the presence of a plasticizer such as methyl, ethyl, or butyl phthalyl ethyl or butyl glycollate, o- and ptoluene sulphonamide, or diphenyl phthalate. The fabric may be waterproofed, e.g. by treatment with alkoxy silanes or co-ordination compounds of chromic chloride with acrylic acid, before coating with the synthetic resin. Specifications 658,180 and 680,338 are referred to.
Patent GB-1043495-A (GB)
Title: Improvements in holders for dental x-ray film
IPC: G03B42/04
Filed: 1965-03-26
Abstract: 1,043,495. Apparatus for dental radiography. G. BERGENDAL. March 26, 1965 [April 24, 1964], No. 12922/65. Heading H5R. A holder (Fig. 3) for positioning dental X-ray film in the mouth of a patient, is formed with two grooves 4, 5 in which the film may be held. With a film positioned in groove 5, the film is centrally located about the plane of the flat part 1 of the holder, and this arrangement is best suited for the examination of the crown of a tooth (Fig. 5, not shown). The part 1 is gripped, between the top and bottom jaws, by the patient. In the groove 4, a film is so located that the roots of the tooth may be examined (Figs. 4a and 6, not shown). The holder may be moulded from a plastics material and be perforated at parts 1 and 6.
Patent GB-1109612-A (GB)
Title: Partitioned and agitated reactor
IPC: B01J19/00
Filed: 1965-09-27
Abstract: 1,109,612. Tubular catalytic polymerisation reactor. NATIONAL DISTILLERS & CHEMICALS CORPORATION. 27 Sept., 1965 [2 Oct., 1964], No. 12929/67. Divided out of 1,109,611. Headings B1F and B1X. A reactor for olefin polymerisation comprises a vertical reaction chamber 10 having a length: diameter ratio of at least 15:1, an inlet (75) at the top and at a plurality of points 12, 15, 20 along the reactor, an outlet at the bottom, a partition 39 between two of said plurality of inlets, a longitudinal agitator shaft 33 having a tapered end 50 and means within the reactor to rotate said shaft by axial engagement with said end; said shaft carrying two groups B, A of adjustable agitator blades 35, 34 which are respectively trapezoidal and pentagonal and extend radially to points at a distance from, and adjacent to, the wall of said reactor and are disposed to effect both radial and longitudinal mixing, the longitudinal mixing being greater above the partition and in the final zone of the reactor than immediately below the partition. As shown the reactor has jackets 40-45 for heat exchange media and the shaft has bearings 80, 81, although support is provided by thrust bearings (56, Fig. 7, not shown) at the top of the reactor which are bolted to the motor. Electrodes (70) and a thermocouple (71) are also provided.
Patent GB-271857-A (GB)
Title: Improvements in or relating to breast pumps
IPC: A61M1/06
Filed: 1927-05-13
Abstract: 271,857. Sales, L. I. G. May 28, 1926, [Convention date]. Breast-pumps. -A breastpump and milk-collecting appliance comprises a cup 2, Fig. 2, of thick rubber or of glass, connected by tubes 3, 5 with a suction pump and a bottle B respectively. An enlargement of the tube 3 contains a filter 4 of sterilized wadding. The tube 5 passes through a cork in the bottle B and is provided at its lower end with a non-return valve comprising a disc 16, Fig. 3, seating on the end of the tube 5 and held in place by a sleeve 10 having an apertured concave base 14. The sleeve 10 is bayonetjointed at 12 to the tube 5. The pump 20, Fig. 1, is connected to the tube 3 through a flexible tube T and comprises a barrel, pivoted at 21 to a right-angled frame 22 adapted to be clamped at 23 to a table. The frame 22 carries a balanced disc 41 rotated by a crank 43 fixed thereto. The plunger-rod 44 of the pump is connected to the crank 43 by means providing a dwell at the end of the instroke and permitting adjustment of the stroke of the plunger. These means comprise a knob 45 on the rod 44 slidable in guides 46 of a member 46<1> the outer end of which embraces an eccentric 48 rotatable on the crank 43 and adjustably secured thereto. Adjustment of the stroke by the eccentric 48 is accompanied by a relative adjustment of two parts 25, 26 of the frame 22 in order to position correctly the barrel 20. In use, the outstroke of the pump, effected by rotating or rocking the disc 41 about its pivot, produces a suction in the cup 2, which is pressed against the nipple, and withdraws the milk. The suction is reduced during the return stroke and is released at the end of the stroke and during the dwell of the plunger through a U-shaped passage formed in the pump barrel and connecting both sides of the plunger. Lateral apertures 39 in the barrel 20, normally closed by screws, may be opened if desired to facilitate the inflow of air when the suction is released.
Patent GB-736130-A (GB)
Title: Improvements in or relating to transmission couplings
IPC: F16D37/00
Filed: 1953-05-09
Abstract: 736,130. Friction clutches. LEWIS, E. C. Jan. 13, 1954 [May 9, 1953], No. 12996/53. Class 80 (2). In a powder clutch, the powder comprises a mass of balls, such as shot, the diameter of the balls being between one quarter and one twelfth of the minimum annular clearance between the driving and driven members, together with a quantity of dry lubricant, such as powdered graphite. The mass may also contain a drying or hygroscopic material such as boric powder. The diameter of the balls may vary within twenty per cent of the average. Specifications 677,019 and 690,445 are referred to.
Patent GB-593098-A (GB)
Title: Improvements in jacquards for weaving looms
IPC: D03C3/16
Filed: 1945-05-24
Abstract: 593,098. Jacquards. SOC. ANON. DES MECANIQUES VERDOL. May 24, 1945, No. 13051. Convention date, April 4, 1944. [Class 142 (i)] A jacquard of the Verdol or similar type, is characterized in that the train of bars 9 is fixed to one end of one or more connecting rods 7 each suspended from the jacquard frame by a link 8 while the other end receives a rectilinear reciprocating movement from a cam 4 mounted on a shaft 3 carried by the jacquard frame and rotating in synchronism with the loom shaft. The train of bars is at its highest position, Fig. 3, when the bars are farthest from the jacquard frame, and as the bars are moved back towards the frame the driver needles 11 are lowered carrying with them the selector needles 12. The bars 9 strike, or do not strike, the driver needles to.put the hooks out of, or into engagement, with the griffes according as the selector needles find, or do not find, a perforation in the paper on the intermittently rotating cylinder of the jacquard.