baber/WOPTO huggingface dataset:
Patent GB-547002-A (GB)
Title: Improvements in packaging machinery
IPC: B65B51/02
Filed: 1941-02-07
Abstract: 547,002. Packeting. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Feb. 7, 1941, No. 1622. [Class 94 (i)] The application of adhesive, in a machine for closing the flaps of cardboard and like containers, is controlled by a rotatable cam consisting of a number of cam surfaces arranged on a common support in such a manner that, as the machine is adjusted to accommodate the width of a given container the cam surface appropriate to that container becomes effective. The invention is particularly applicable to a machine of the kind in which containers 11, Fig. 1, are fed past a folding-device 17, of the kind described in Specification 536,069, which folds inwardly the upper inside flaps 18, then through ploughs 19 which turn the outer flaps 21 outwards into a horizontal position, and then through upper and lower glueing devices 22, 23, respectively, which apply a film of glue to the inner surfaces of the outer flaps. The machine is adjustable, as described in Specification 541,421, to accommodate containers of different sizes. The application of glue to the outer flaps is interrupted, if necessary, in areas corresponding to the gap between the inner flaps to prevent the glue from making contact through the gap with the contents of the container. Each of the upper glueing-devices 22 comprises a roller 42, Fig. 3, that dips into a glue bath 43, a transfer roller 52, and a glue-applying roller 53. The shafts of the rollers 52, 53 are mounted in a pair of frames 48 which are freely rotatable on the staft 41 of the roller 42. A cam roller 97, secured to the shaft 51 of the roller 53, rests on a rotating cam 96, so the rotation of the cam 96 raises and lowers the glue-applying roller 53 and thus controls the application of glue to the container flaps.. The apparatus as a whole is adjustable vertically by means of a rotatable screw 36, and the rollers are adjustable laterally by means of a rotatable screw 29. During the latter adjustment, the rollers move relatively to the framework of the apparatus, and the cam roller 97 moves from one to another of a number of cam surfaces 98 on the cam 96. The surfaces 98 are so arranged that the movement imparted to the roller 53 is appropriate to the size of container for which the apparatus has been adjusted. Each of the lower glueing devices 23 is moved similarly relatively to a cam which has a series of depressions on its surface to control the lowering of the glue-applying wheel when interrupting the application of glue.
Patent GB-1177751-A (GB)
Title: Improvements in or relating to Helicopter Landing Systems
Inventor: SPROULE JOHN STANLEY
IPC: B64F1/12
Filed: 1965-11-01
Abstract: 1,177,751. Anchoring aircraft. HELICOPTER PATROL CRAFT Ltd. 1 Feb., 1967 [1 Nov., 1965; 13 Jan., 1966], Nos. 46200/65 and 1691/66. Heading B7G. . A helicopter or other V.T.O.L. aircraft is provided with a probe member 3 attached to the aircraft by a universal joint 4 and retracted and lowered by mechanism 5 so that when lowered it may engage in one of a plurality of apertures formed by a grid structure 6 on a landing platform 2. The probe comprises an outer tube 7 and an inner rack element 8 slidable within the tube and formed with rack teeth 9 which co-operate with a spring- loaded pawl 10, releasable by a pull-knob 12, but held out of engagement with the teeth 9 by a bar 20 formed with a slot through which a pin 18 may pass when bar 20 and rod 17 are moved upwardly by plate 19 bearing on the landing platform. The lower end of the probe carries four blades 14 spring biased to the full-line positions shown in Fig. 2, but capable of retraction to the dotted line positions to enable the probe to pass through an aperture in the grid structure 6. As the aircraft lands and compresses its undercarriage the blades 14 pass through and then engage the underside of the grid structure, plate 19 is forced upwardly on the probe to release pawl 10, thereby locking the aircraft firmly on to the landing platform. For aircraft with rigid undercarriages the landing platform may have a resilient surface, and if formed on a ship deck it may have pivoted lateral portions that may be used to extend the area of the platform and subsequently folded upright to protect the aircraft.
Patent GB-547181-A (GB)
Title: Reducing or crushing apparatus
IPC: B02C21/02
Filed: 1941-02-08
Abstract: 547,181. Crushing-apparatus. BURRELL, A. J. Feb. 8, 1941, No. 1718. [Class 59] Crushing - apparatus for clinker ores &c. comprises a pair of rollers 10, 11 disposed within a rotating horizontal cylindrical screen 6 having lifters 7. for carrying material to the upper portion of the screen and there discharging it upon the roller 10 and upon a feed plate 26 which directs the material between the rollers 'to be crushed. As shown, the apparatus is in the form of a vehicle and the screen and rollers are driven from a shaft 12 through gearing including friction pulleys or rollers 5 engaging with the screen ends. Material passing through the screen is carried away upon conveyer band 27 driven from the wheel 29 by the chain 28. In starting up the apparatus the belt 14 is moved from loose pulley 15 to a fast pulley on the same shaft. Removable annular spacers may be provided upon the rollers 10, 11 for predetermining their distance apart. The Provisional Specification refers to clutch mechanism for starting up the apparatus and states that more than one pair of rollers may be mounted within the screen.
Patent GB-729745-A (GB)
Title: Improvements in electric arc welding systems
IPC: B23K9/073
Filed: 1952-01-22
Abstract: 729,745. Supply systems for welding arcs. FOSTER TRANSFORMERS, Ltd., [formerly FOSTER TRANSFORMERS & SWITCHGEAR, Ltd.], and JENNINGS, R. E. Jan. 16, 1953 [Jan. 22, 1952], No. 1732/52. Class 38 (4). In an A.C. arc welding system in which the stability of the arc is improved by injecting into the welding circuit pulses of high voltage high frequency current obtained from a spark-gap oscillator, the spark-gap is arranged to flash over once only per half cycle of the main supply so as to produce a single non-oscillatory pulse of high-frequency energy timed to occur at or immediately after the instant when extinction of the welding are would occur. In the system shown in Fig. 1; the welding arc W is supplied from a power transformer T through a current regulator Z and the secondary winding of a high-frequency transformer 10, the primary winding of which is in the discharge circuit of a condenser 9. The last, together with a triggered spark gap 14-16 and a charging resistor 8, form a relaxation oscillator energized over a transformer 7 and phase shifter PS, the condenser slowly charging over part of each half cycle of the mains voltage and then being quickly discharged by the spark-gap when triggered by a transformer 17, triggering occurring when the welding circuit voltage passes through zero. A condenser 20 and resistor 19, connected as shown, or across the reactor Z, or fed from a separate transformer, may provide further arc-maintaining current assisting the high-frequency pulse. A relay, controlled by a current transformer in the welding circuit, may have contacts in the primary circuit of transformer 17, the arrangement being such that during normal welding the transformer triggers the spark-gap as described above, but in the absence of flow of welding current the primary circuit of transformer 17 is open at the relay contacts. In consequence the spark-gap now breaks down when the A.C. voltage is at or near its peak value and the high-voltage pulse is thus applied to the welding circuit at the most favourable instant in the cycle to initiate an arc. In a modified arrangement, Fig. 6, the transformer 7 supplies a simple spark gap 26 and is energized over an integrating circuit 23, 24. A change-over relay 22 controlled by current transformer CT provides that under non-welding conditions the transformer 7 receives only the voltage across condenser 24, so that the spark gap breaks down at a voltage peak of the A.C. cycle, whilst, during welding, the voltage across the welding circuit is added to that across condenser 24-the gap then breaking down at a point in the cycle when the welding current passes through zero.
Patent GB-649040-A (GB)
Title: Improvements in and relating to vinylmethylnaphthalenes
IPC: C07C1/24
Filed: 1948-01-20
Abstract: Monovinylmethylnaphthalene is prepared by heating methylnaphthylmethylcarbinol at elevated temperatures and reduced pressures in the presence of a condensation catalyst to eliminate water, e.g., the vapours of the carbinol may be contacted with activated alumina at elevated temperatures and pressures.  The methylnaphthylmethyl carbinol may be prepared by hydrogenating an acetylmethyl naphthalene, e.g., in the presence of a hydrogenation catalyst such as finely divided platinum, platinum oxide, palladium or copper chromite.  Suitable condensation catalysts mentioned are acid potassium sulphate, zinc chloride or phosphoric anhydride, and for vapour phase reactions metallic oxides such as oxides of chromium, tungsten, molybdenum or manganese.  In the example, 4-(1-methylnaphthyl)-methylcarbinol and 4-vinyl-1-methylnaphthalene are prepared.  Similarly, 8-(1-methylnaphthyl)-, 6 - (2 - methylnaphthyl)- and 8 - (2 - methylnaphthyl) - methylcarbinols and 8-vinyl - 1 - methyl-, 6 - vinyl - 2 - methyl- and 8-vinyl-2-methylnaphthalenes are prepared.  Acetylmethylnaphthalnes are prepared by a Friedel-Craft reaction from acetic anhydride, acetyl chloride or other acetylating agents and methylnaphthalenes in the presence of a Friedel-Craft catalyst, e.g., aluminium bromide or chloride, ferric chloride, zinc chloride, boron fluoride, hydrogen fluoride or sulphuric acid.  The reaction may be carried out in a solvent, e.g., carbon disulphide or nitrobenzene.  Mono-and di-acetylmethylnaphthalenes are formed.  The following compounds may be prepared: 1 - methyl p  - 4 - acetyl-, 1 - methyl - 8 - acetyl-, 2-methyl-8-acetyl-, 2-methyl-6-acetyl-, 1-methyl-4,8-diacetyl-, and 2-methyl-6,8-acetylnaphthaenes.  Mixtures of 1- and 2-methylnaphthalenes may be acetylated by the above method.  The Specification as open to inspection under Sect. 91 refers to the preparation of polyacetyl methylnaphthalenes by subjecting a monoketone isomer to further acetylation as above.  The 1-methyl-4,8-diacetyl- and 2-methyl-6,8-diacetyl-naphthalenes may be prepared in this way.  This subject-matter does not appear in the Specification as accepted.
Patent GB-559833-A (GB)
Title: Improvements relating to twin-cylinder air-cooled internal combustion engines
IPC: F02F1/30
Filed: 1943-02-03
Abstract: 559,833. Twin-cylinder air-cooled internal combustion engines. TRIUMPH ENGINEERING CO., Ltd., and HOPWOOD, H. Feb. 3, 1943, No. 1817. [Class 7 (ii)] A twin-cylinder air cooled internal combustion engine of the side-valve type, particularly for motor cycles, has a twincylinder block a formed with cooling fins c and with a fuelinduction passage d running transversely between the cylinders b, the end e of the passage being connected to a carburetter and the other end being branched to lead to adjacent inlet valves m of the two cylinders. The central part of the passage is preferably of elliptical or other non-circular cross section. Exhaust passages h lead to separate exhaust pipes. The cylinder head i with cooling fins j extends over both cylinders and provides combustion spaces k. The cylinder block includes chambers o closed by cover-plates p which give access to the tappets s and valve springs r.
Patent GB-741669-A (GB)
Title: Improvements relating to gloves and the manufacture thereof
IPC: A41D19/02
Filed: 1953-01-22
Abstract: 741,669. Gloves. JONES, H. W. Dec. 14, 1953 [Jan. 22, 1953], No. 1839/53. Class 141. A glove is formed from two blanks, viz. a back part 10 which comprises the whole of the back of the glove and the front of the thumb 18 and index finger 16 and the adjacent part of the front of the glove, and a front part 11 which comprises the front of the middle and little fingers 20, 21, 22 and the adjacent part of the front of the glove.
Patent GB-142530-A (GB)
Title: Improvements in and relating to automobile vehicles
IPC: F16H9/24
Filed: 1919-01-24
Abstract: 142,530. Godfrey, H. R., and "G.N.," Ltd. Jan. 24, 1919. Chain adjusters and radius-rods. - In changespeed gearing of the kind in which a number of chains are disposed between the back axle and a transverse countershaft carried on the main frame, the countershaft is driven from the engine by a longitudinal shaft through bevel gear or the equivalent, the back axle being journaled in bearings connected by radius-rods with the countershaft. The radius-rods 18 connecting the countershaft and the back axle each comprise two side portions and are provided at their front ends with bolts and nuts to allow adjustment of the chains. One of the pivot pins 21 for the radius rod is tubular to permit the engagement of a starting- handle with the countershaft. Between the side portions of each of the radius rods is arranged a tubular member 24 to receive a fibre block 26, the upper surface of which forms a bearing for the end of the spring 25.
Patent GB-205414-A (GB)
Title: Improvements in or relating to liners for cylinders of internal-combustion engines
IPC: F02F1/18
Filed: 1923-01-20
Abstract: 205,414. Romeyn, J. Jan. 20, 1923. Cylinders, liners for. -The cylinder liner is formed in two parts, which are pressed into one another, and held together by bars such as h, Fig. 2, forced or shrunk into grooves formed in the side of the liner. The portion c of the liner subject to high temperature is of cast or forged steel, whereas the portion d subject to piston friction is of cast-iron.
Patent GB-1210311-A (GB)
Title: Photographic material
Inventor: SALESIN EUGENE DENNIS
IPC: G03C1/83
Filed: 1968-01-12
Abstract: 1,210,311. Silver halide emulsions. EASTMAN KODAK CO. Jan. 12, 1968 [Jan. 16, 1967], No. 1877/68. Heading G2C. The contrast of panchromatically sensitized silver halide emulsions for forming colour separations is lowered in the red, green and/or blue regions by incorporating therein one or more dyes which are removed during processing, which have their principal light absorption in the region of the spectrum in which the contrast is to be lowered and which do not sensitize or desensitize the emulsion; e.g. contrast to green light is lowered by a magenta dye. Preferred dyes are cyanine, merocyanine, styryl, cinnamylidene and oxonol dyes which are either water-soluble or are bleached with sulphite or thiosulphate ions in the developer or fixer.
Patent GB-122505-A (GB)
Title: Improvements in or relating to Machines for Treating Hides, Skins, and Leather.
IPC: C14B1/44
Filed: 1918-02-04
Abstract: 122,505. Haley & Co., T., and Bolton, J. H. Feb. 4, 1918. Reciprocating-tool machines.-In a machine for glazing, rolling, staking, and similarly treating hides, skins, and leather, of the kind in which the tool is supported by a reciprocating carriage actuated from a rotating crank by a connecting-rod, mechanism is provided for giving the tool an approximately straight-line motion along the work and for lifting it clear thereof on the return stroke. The mechanism consists of a toggle 10, 11 pivoted at 13 to a toolholder 8, which is itself pivoted at 9 to the sliding carriage 4. The upper link 11 of the toggle is supported by a pin 14 in a sliding bearing 15 which has a resilient pressure device acting downwardly thereon. This device is adjustable by a screw 20, which can be tightened to an extent sufficient to render the upper ends of the toggle unyielding. The connecting-rod 5, which actuates the carriage 4 by a pin 23, has a bracket 24 to which is pivotally connected a pair of links 25 hinged at their other end to the middle pivot 12 of the toggles 10, 11. During the working stroke, the links 25 are preferably arranged to oscillate to an equal extent on each side of the pivot 23 and the pivot 12 to an equal extent on each side of the line joining the pivots 13, 14. On the return stroke, the tool-holder 8 is suspended by the bent toggle from the bearing 15.
Patent GB-185431-A (GB)
Title: Improvements in or relating to coal cutting machines
IPC: E21C29/10
Filed: 1921-10-14
Abstract: 185,431. Clough, H. Oct. 14, 1921. Coal-cutting machines.-In a machine of the chain type, a motor G drives a capstan A<1> through gearing B, C, D, E and drives a forwardly-placed haulage drum K<1> through gearing R, P, N, M, a clutch and worm glaring K<2>; the cutter-chain driving-sprocket H is loosely mounted on the capstan shaft A and is coupled thereto by the insertion of a pin &c. into apertures H<1>, J<1> in the sprocket H and a disc J respectively. Pulleys and rollers are provided at the corners of the machine frame to guide the haulage or other ropes.
Patent GB-478772-A (GB)
Title: Method of and means for manufacturing artificial slabs, insulating layers, panels and sheets for building and other constructional purposes and the like
IPC: B28B1/52
Filed: 1937-01-25
Abstract: 478,772. Mixing-apparatus. LINDEN, jun., J. C. VAN DER. Jan. 25, 1937, No. 2128. [Class 86] [Also in Groups V and X] Slabs and the like are made by soaking fibres in a soaking vessel, transporting said fibres to a draining platform by means of a conveyer belt, draining the fibres and feeding them to a mixer for mixing them with cement. The soaking solution may be a solu. tion of calcium chloride and fer. rous chloride to which calcium hydroxide is added. Fibres are soaked in a vessel 1, conveyed to a draining platform 3 by means of a toothed conveyer belt 2 over a draining gutter 5. The platform 3 is vibrated by means of an eccentric rod 8. The drained fibres are fed into a mixer 12, cement being also fed from a hopper 22, and thence to moulds. The arrangement for feeding the fibres to the mixer comprises a movable plate 15 pivoted at 16, a plate 18 pivoted at 17 and a handle 19 which in its lowermost position allows the plate 18 to close the opening 20 and in its uppermost position opens it.
Patent GB-1212663-A (GB)
Title: Process for making cellular polymers
IPC: C08J9/06
Filed: 1969-01-14
Abstract: 1,212,663. Cellular polymers. UPJOHN CO. 14 Jan., 1969 [5 Feb., 1968], No. 2209/69. Headings C3C and C3R. Cellular polymers are prepared by bringing together, under foam producing conditions, (a) a polyisocyanate containing 35 to 85% by weight of methylenebis (phenyl isocyanate); (b) 0À01 to 0À25 equivalent per equivalent of the polyisocyanate of a tertiary amine; (c) 0 to 0À5 equivalent per equivalent of polyisocyanate of a homocyclic polyepoxide; and (d) 0 to 0À3 equivalent per equivalent of polyisocyanate of a polyol having an average functionality of 2 to 8 and an average equivalent weight of 30 to 1500, provided that when no polyol (d) is present the polyepoxide (c) is present in an amount from 0À0045 to 0À5 equivalent per equivalent of polyisocyanate and further provided that when no polyepoxide (c) is present the polyol (d) is present in an amount from 0À01 to 0À3 equivalent per equivalent of polyisocyanate, and wherein the total number of equivalents of polyepoxide (c) and polyol (d) do not exceed 0À6 equivalent per equivalent of polyisocyanate. Numerous examples are given of the components (a), (b), (c) and (d). In a typical example a quasi-prepolymer is prepared from a polyether polyol and modified methylenebis- (phenyl isocyanate) prepared by heating methylenebis(phenyl isocyanate) with triethylphosphate and mixed with a dimethyl polysiloxane polyethylene oxide block copolymer and trichlorofluoromethane to form a component A which is mixed with a component B comprising a mixture of an epoxy novolac resin and trichlorofluoromethane and a component C comprising a solution of 1,4-diazobicyclo[2.2.2]- octane in dipropylene glycol to form a foam.
Patent GB-843712-A (GB)
Title: Burner construction
IPC: F23D11/00
Filed: 1958-01-23
Abstract: 843,712. Burners. BLOOM ENGINEERING CO. Inc. Jan. 23, 1958 [April 11, 1957], No. 2292/58. Class 75(1). A burner construction for use with a flaring port in a furnace comprises a tubular body 18 having a tip portion 19 from which extends a cylindrical wall 21 defining a recess 22 accommodating a refractory block 27, the front of the recess conforming to the size of the rear of the port 16, the wall 21 being spaced from the body 18, means for supply fuel and combustion air to the space 26 so formed and a plurality of discharge passages 25 to provide tangential discharge in front of but adjacent the flaring face 29 of the port. Fuel, which may be gas or atomized oil, is supplied by a pipe 38 leading to exits 39 into the space 26. Air passes from an inlet 31 through a chamber 30 to an annular passage leading to the space 26. In a modification, Fig. 3 (not shown), the passages 25 are replaced by separate passages for fuel and air. Alternatively, passages for the fuel may open into the passages 25, air only being supplied to the outer ends of these.
Patent GB-1270234-A (GB)
Title: Improvements in conveying systems
Inventor: MARSHALL DAVID DOBIE
IPC: B65G15/60
Filed: 1970-01-17
Abstract: 1,270,234. Endless conveyers. GREENGATE & IRWELL RUBBER CO. Ltd. 18 Jan., 1971 [17 Jan., 1970], No. 2356/70. Heading B8A. A conveyer belt 2 is supported on a cushion provided by air which flows into a trough or plenum chamber 1 from holes 10a formed in two flexible tubes 10. These tubes are fed from a duct 7 via a manifold 8 and flexible tubes 9. The belt is additionally supported by bars 11 and by rollers (6, 6a), Fig. 1 (not shown). The tubes 10 may be coated with P.T.F.E. In a modification, Fig. 5, the tubes 10 are of aluminium and covers 15 for the tubes are of P.T.F.E. In Fig. 6 (not shown) walls 13 prevent excessive longitudinal flow of air below the belt. End closures (1c) for the trough (1) carry a flexible inflatable seal (16) in contact with the belt. The moisture content of the air may be increased artificially to lubricate the undersurface of the loaded section of the belt.
Patent GB-1515583-A (GB)
Title: Lamps and their manufacture
IPC: H01J9/24
Filed: 1977-01-18
Abstract: 1515583 Discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 18 Jan 1977 [21 Jan 1976] 02357/76 Heading H1D To locate accurately the light source of a lamp, e.g. a Xe or Hg high pressure compact source discharge lamp, a tube 10, e.g. of fused silica with an obstructing web 12 is held on accurately aligned W or Mo mandrels (not shown), wound with W or Mo wire 18. The tube is heated to cause it to collapse under vacuum and grip the wires, after which the mandrels are removed and replaced by rod members 22, 23 of the same size as the mandrels, forming parts of respectively the light source structure 20 and the termination. Mo foil 24 in sheet or strips is laid on the tube, connected to the two rods by welded wires 26, and a further winding 32 of W or Mo is wound round source support rod 23 and extended back on to the Mo foil 24. The whole assembly is fitted inside an extension sleeve 28 of the fused silica lamp envelope 30 and is sealed on a lathe, the sleeve being heated to collapse under vacuum to form a seal at point X, while the wire wrap 32 allows slight sliding of source rod 23 to relieve stress. In a modification the assembly is sealed inside a separate fused silica tube (Fig. 3, not shown) which is finally sealed into an enlarged extension sleeve of the lamp envelope, the seal being near the midpoint of the tube (Fig. 4, not shown) so that the sensitive inner end lies protected within the lamp envelope; a packing piece may cover the outer end. Increased gas pressure may be tolerated in the envelope.