baber/WOPTO huggingface dataset:
Patent GB-573319-A (GB)
Title: Lubricated clutches
IPC: F16D13/08
Filed: 1943-10-20
Abstract: 573,319. Friction clutches. STANCLIFFE, C. W., and STANCLIFFE FREEWHEELING, Ltd. Oct. 20, 1943, No. 17282. [Class 80 (ii)] In a coil clutch intermediate resilient segmental members are provided between the coil and a driving or driven member, the said segmental members being shaped so that the coil first engages their ends and presses their centre parts against' the surface of the driving or driven member, the engagement progressing towards their ends as the take-up proceeds, disengagement subsequently progressing from the ends towards the centre. As shown, segments 3 are arranged between an outer housing 4 and an expanding coil I carried by an inner housing 2. The radius of the segments 3 is slightly less than the bore of the housing 4. As the coil expands to engage the clutch, the engagement between the segments 3 and housing 4 gradually progresses from the centre part towards the end portions. When disengaging the reverse action takes place. The segments may make up one or more substantially complete rings or turns of a helix. Specification 556,940 is referred to.
Patent GB-1354359-A (GB)
Title: Method and packaging for preparing packaged food products
IPC: A23L5/10
Filed: 1971-05-26
Abstract: 1354359 Heat treatment ELECTRO-FOOD AB 26 May 1971 [28 May 1970] 17320/71 Heading A2D [Also in Division H5] In a method of treating a packaged product, preferably a comestible, by the passage of an electric current therethrough whereby the electric current is supplied by at least two electrodes via an electrolyte surrounding the product, the treatment is maintained until the product has reached a desired temperature. The treatment may take the form of a sterilisation, or a thawing of a frozen product. The package, during the above treatment, may be sealed or open. In the former case, the electrodes may be metal foil coated on to the inside surfaces of the package, and may have contact surfaces connected to an outside source of current. Also in this case, the package may be perforated and placed in an electrolyte prior to electrical treatment. When an open package is used during the treatment, one or more of the electrodes used may be part of a current supply arrangement, the electrode(s) being placed in the package prior to the commencement of the treatment. The package may be a plastics bag (Fig. 3, not shown) having electrodes in the form of metal foil on its inner surfaces, or the package may be a tin can (Fig. 1) having an insulating shell 1 and a bottom 3 and top 5 of metal.
Patent GB-772052-A (GB)
Title: Improvements in shuttle boxes for looms
Inventor: POTTER MATTHEW
IPC: D03D49/52
Filed: 1954-06-12
Abstract: 772,052. Shuttle boxes and shuttle swells. TOOTAL BROADHURST LEE CO., Ltd. June 9, 1955 [June 12, 1954], No. 17343/54. Class 142 (2). A shuttle swell or the whole or part of the interior of the shuttle box is made of or coated with synthetic resin (for example phenolformaldehyde, epoxide, polyester, or furane) preferably incorporating asbestos fibre or fabric or compressed resin-bonded cellulose fibre, with or without graphite.
Patent GB-555079-A (GB)
Title: Improvements in or relating to envelopes
IPC: B65D27/06
Filed: 1943-02-20
Abstract: 555,079. Envelopes. ROBERTS, S. M. Feb. 20, 1943, No. 17356/42. [Class 146 (ii)] A reply envelope has a closure flap with two adhesive stripes 15, 17 separated by a detachable part 16 which may bear the first address, part 16 covering an address label secured across the envelope or formed by the flap 13, the part 16 having tabs 16a for opening and being separated from the gum stripes by perforated lines 14.
Patent GB-894773-A (GB)
Title: Process for the production of pellets
Inventor: SMITH BENJAMIN G
IPC: B01J2/12
Filed: 1958-05-30
Abstract: 894,773. Fertilizer pellets. CHEMICAL & INDUSTRIAL CORPORATION. May 30, 1958, No. 17440/58. Class 111. [Also in Group V] A continuous process for the formation of pellets of fertilizer or other solid comprises treating a bed of nuclei of the material having a particle size of at least about 40 mesh and a moisture content below the agglomeration point (as defined) in a chamber with constant agitation so as to separate the nuclei, passing through the chamber a hot stream of gas containing droplets of an aqueous slurry of the material, showering the nuclei through the gas stream so as to provide them with a dried coating of slurry and recovering a product of diameter 0À03 to 1.5 inches. As shown, Fig. 1, a slurry 3 is sprayed through nozzles 9, 10, into rotary granulator 2 and on to agitated material fed from feeder 1. A blower 11 draws heated air through the tumbling particles and carries the fines to a cyclone separator 12. The product is collected in receptacle 15, the ground over-size and the under-size being re-cycled through feeder 1 and the pellets being fed through feeder 19 to the dryer 18.
Patent GB-908732-A (GB)
Title: Phosphorus containing spirobi (metal-dioxane) polymers
Inventor: GUEST HOWARD RUSSELL
IPC: C08G4/00
Filed: 1960-05-18
Abstract: A mixture of "condensed" phosphoric acids utilized for chemically incorporating phosphorus into polymers (see Group IV(a)), is prepared by heating together 2 to 3 parts of ortho-phosphoric acid with 1 part of phosphorus pentoxide.  Reference has been directed by the Comptroller to Specification 822,668.ALSO:Flame-resistant resins are prepared by heating at 60 DEG -150 DEG C. an aliphatic polyhydric alcohol, a condensed phosphoric acid and a 3,9-dialkenylspirobi(meta-dioxane) having the general formula: <FORM:0908732/IV(a)/1> wherein each R1 is hydrogen, methyl or chlorine and each R2 is hydrogen or methyl.  Condensed phosphoric acids are those represented by the formula <FORM:0908732/IV(a)/2> wherein x is greater than 1; pyrophosphoric acid is the simplest member of this class, but usually a mixture prepared by reacting orthophosphoric acid and phosphorus pentoxide is used.  Specified polyhydric alcohols include ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, 2-ethylhexane-1,3-diol, diethylene glycol, triethylene glycol, pentaethylene glycol, dipropylene glycol, tripropylene glycol, glycerol, 1,2,4-butanetriol, trimethylolethane, trimethylolpropane, pentaerythritol, sorbitol, mannitol, dulcitol and 2,4-dihydroxy-1,3-hydroxymethylpentane.  The resin-forming reaction mixture usually contains an acidic catalyst and there are specified sulphuric acid, toluenesulphonic acid, benzenesulphonic acid, boron trifluoride, aluminium chloride, dialkyl sulphates, titanium tetrachloride, phenyl acid phosphate and octylphenyl acid phosphate. In a modification, acrolein is reacted with pentaerythritol in the presence of an acid catalyst to produce a liquid precondensate A-stage resin which is then reacted with the condensed phosphoric acid also in the presence of an acid catalyst.  Examples 1-3 illustrate the first embodiment and Example 4 the second embodiment of the invention.  Reference has been directed by the Comptroller to Specification 822,668.
Patent GB-569574-A (GB)
Title: Improvements in the manufacture of discs used more especially as parts of disc wheels
IPC: B21D53/16
Filed: 1943-10-25
Abstract: 569,574. Making discs for wheels, WILKINS, W. S. Oct. 25, 1943, No. 17509. [Classes 83 (ii) and 83 (iv)] Tapering by rolling.- Discs for wheels are produced from strip by rolling between conical rolls b such that the strip is thinned at the outer edge and thereby curved into annular form. The edges are afterwards welded. A longer length of strip may be rolled into a helix having a number of turns, in which case a shunt is provided to direct the leading edge of the strip to pass over the upper roll. A roller a<1> may guide the strip into the pass. The helix is cut into sections for welding. The rolls may be bevel geared at D, the gear E being driven by a motor pinion or separate synchronous motors may drive the two rolls.
Patent GB-403679-A (GB)
Title: Improvements in or relating to hydraulic apparatus, particularly for vehicle braking systems
IPC: F16D65/22
Filed: 1932-06-21
Abstract: 403,679. Hydraulic transmission of power. ORMSBY, W., London Road, Long Sutton, Lincolnshire. June 21, 1932, No. 17533. [Class 69 (ii).] In hydraulic cylinders or the like particularly for operating brakes, comprising two cylindrical parts slidable one within the other and a flexible sealing member that is secured to the outer part and has an annular portion that is retroflexed during the sliding movement, the sealing member is wholly supported against the fluid pressure, the arrangement being such that this member is subject to little or no tension. Fig. 1 shows a cylinder that may be connected to brake shoes, comprising diaphragms 13 secured to the cylinder proper 10 by tubular members 15 and rings 20 that contact the edges of the diaphragms. The diaphragms bear upon pistons 16 slidable in the tubes 15. The annular portion 131 of the diaphragm is retroflexed or rolled back to the position shown with outward movement of the pistons, the material not being appreciably stressed other than by compression. Fig. 4 shows a telescopic master cylinder comprising sections 30-34 that are connected together by tubular pieces of flexible material forming sealing-members, there being sliding engagement between the sections 31, 33 and tubular members by which the flexible material is secured to the sections 30, 32, 34. The end member 46 which may be operated directly by the foot, slides upon a fixed rod 42. The device is shown with the parts in mid-position. In operation, liquid is forced through passage 49 to the brake &c. operating cylinders. Fig. 6 shows a modification which gives an initial low pressure stage followed by a high pressure stage The low-pressure piston 51 slides in a cylinder 80 forming part of a telescopic cylinder provided with flexible sealing members similar to those of .Fig. 4. The upper end part of the cylinder is integral with a plunger 42 slidable in the lower part 59. The piston 51 may be connected to the cylinder 80 by a flexible sealing-member similar to those for the telescopic sections or as shown a number of rubber tubes 52 with interposed metal tubes may be disposed between the piston and cylinder as described in Specification 348,385. When pressure is applied to the piston 51, liquid is forced from the large diameter cylinder 80 through a groove 56 in the piston rod 54 and passage 60 to the brake to operating cylinders until as shown the upper end of the passage 56 is closed by entering the plunger 42. A passage 57 in the rod 54 then registers with a port 58 in the plunger so that liquid is forced from the telescopic cylinder through the passage 60. In a modification of this device, the piston 51 has two rods, one provided with the groove 56 and the other with the passage 57. The lower ends of these rods seat within the plunger 42 at the completion of the stroke of the piston 51 and thereby form an additional seal against return of the liquid to the cylinder 80 during the second stage.
Patent GB-1082128-A (GB)
Title: Transducer
IPC: G01G3/16
Filed: 1965-04-27
Abstract: 1,082,128. Capacitor transducers. NORTHROP CORPORATION. April 27, 1965 [Sept. 11, 1964], No. 17598/65. Heading H4J. [Also in Division H2] A loud-speaker, hydrophone, microphone (e.g. for blast wave studies) or other transducer comprises opposed elements of electrically conductive material joined by an intermediary of compressible cellular foamed electrically non- conductive material, of uniform thickness, intimately bonded to the confronted surfaces of the elements. The bond is free of voids and the opposed elements are initially unstressed. The foamed material may have open cells, but closed cells permit good response at low frequencies. Suitable foams are of natural rubber, silicone rubber or neoprene. A capacitor microphone 1 (Fig. 1) comprises aluminium plates 2, 3a, 3b maintained in a parallel array by sheets 5, 6 of foamed material. The foamed material is homogeneous and is devoid of air bubbles, wrinkles or gaps at the interfaces. Epoxy resin adhesives, transfer papers, double-sided pressure-sensitive adhesive tape or, for neoprene, a neoprene solution may be used for the bond. Alternatively the foamed material may be intrinsically adhesive. The outer plates 3a, 3b may be larger than the inner plate 2 and the sheets 5, 6 may be coextensive with, or extend beyond, the inner plate 2. The plates 3a, 3b are preferably bonded together by an edge member (3c), Fig. 2 (not shown), of aluminium, copper or conductive epoxy resin. Member (3c) may extend along more than one edge and may frame the plate 2 completely, provided the plates 3a, 3b are able to move parallel to the plate 2 in response to pressure differences. An insulated conductor (7) connected to the plate 2 is brought out through an aperture in the member (3c) and a coaxial shielding conductor (8) is connected to the outer plates 3a, 3b. The transducer may be formed of an inner plate 2 with a single outer plate (3), Fig. 4 (not shown), wrapped around it and joined at the ends to complete the shielding. Foamed material (9) is wrapped around the plate 2 or formed in situ. For omnidirectional response the plates 2, 3 and foamed sheet may be in the form of concentric spheres (Fig. 5, not shown). For greater directionality, e.g. to cover a stage, the plates may be curved, Fig. 6 (not shown). Flat, circular transducers, non-directional below 10 c/s., and directional transducers comprising flat plates 1000 feet by 1 foot are envisaged. Large transducers may be made of small transducers electrically, but not mechanically, connected in parallel. Local circuit.-When used as a microphone, the grid voltage of a triode T is controlled by the capacitance of the transducer 1. A polarizing voltage is applied at terminal B1. The circuit components are selected for optimum performance in the frequency range ¢ c/s. to 5 c/s. Alternatively the transducer is excited by a varying voltage applied across the plates to produce an acoustic output.
Patent GB-152737-A (GB)
Title: Improvements in gas-heated soldering irons
IPC: B23K3/02
Filed: 1919-07-14
Abstract: 152,737. Silver, H. July 14, 1919. Soldering.-A gas-heated soldering-iron has a chambered bit to receive the burner tube, which is connected to or formed integral with a shield, to which the tube carrying the gas and air pipes and the handle is screwed. In the formation shown in Figs. 1 and 5, the burner tube 4 which has perforations 5 for the admission of auxiliary air, is screwed to the chambered bit 1, which has longitudinal grooves 11, 12 for the escape of waste gases. The shield 16 is screwed to the tube 4 and also to the tube 9, which carries the handle 10 and also the gas and air supply pipes. In the form shown in Fig. 10, the burner tube 18<1> is integral with the shield 22, and is formed with a series of longitudinal flutes 20 for the escape of waste gases. Holes for auxiliary air are formed at 23, and a hole 17 in the head serves for observing the flame. Reference has been directed by the Comptroller to Specifications 2988/74 and 114,024.
Patent GB-770508-A (GB)
Title: Earth-moving bowl-type scrapers
Inventor: KIMSEY WOODROW PAUL
IPC: E02F3/64
Filed: 1955-06-20
Abstract: 770,508. Earth-moving apparatus. CATERPILLAR TRACTOR CO. June 20, 1955, No. 17734/55. Class 68 (1). In order that the cable 40 of a control winch of a bowl-type scraper may raise the apron 30 of the scraper bowl 10 for a short distance at one speed and then at an increased speed without variation of the winding speed of the winch and then, when the apron 30 is fully raised, advance the ejector 33 through the bowl 10 the cable 40 extends into the cross arm 18 of the bowl-supporting yoke 16, 18 to pass about sheaves 42, 43 and multiple sheaves 40, 45 and then leaves the yoke and passes over sheaves 47, 48, 49 to pass about the multiple sheaves 50-53 before being secured to the bowl 10 at 54. The sheaves 42, 43 and 45 are secured in the cross arm 18, sheaves 52, 53 are secured to the bowl 10, the sheaves 50, 51 to the ejector 33, and the sheave 46 is secured to a block 44 slidably mounted in guides disposed within and axially of the cross member 18. A rope 55 secured to the apron at 56 passes into the cross member over sheaves 57, 58, 66, 60 and then about a sheave 61 on the block 61 before being secured to a member 62 slidably mounted on a rod 63 secured to the cross member 18. During the hauling in of the cable 40 the member 62 abuts the block 44 and the member and the block slide towards the sheaves 45 until the member 62 engages a stop 67 adjustably secured to the rod 63. The rate of raising of the apron is then doubled as the block 44 proceeds on to abut the sheaves 45, whereafter the ejector is advanced against a spring 35.
Patent GB-145641-A (GB)
Title: Regulating apparatus for piston pumps with shaft drive and variable length of stroke
IPC: F04B1/06
Filed: 1920-06-30
Abstract: 145,641. Krupp Akt.-Ges., F. April 12 1917, [Convention date]. Addition to 145,640 Stroke, varying; regulating delivery by by passes.-In a variable stroke piston pump of the kind described in the parent Specification, an auxiliary motor G is adapted to adjust a by-pass g<5> so as to relieve the pump of load. The piston 4 works in a cylinder A<8> which is connected at the right end by a pipe a<10> to the delivery pipe a<2>, a<3>, and at the left end to a compressed air cylinder J. As the delivery pressure rises, the piston H moves to the left and adjusts the sleeve D through the lever F, E. Further movemen brings a collar h<3> into contact with a lever K, K<1> and moves a rod M connected to a lever P carry ing two pins p<1>, p<2>, which are adapted to operate valves Q, R. When the lever K, K<1> is moved by the collar h<3>, the valve Q is closed and the valve R opened. Communication is thus made be tween the left end of a differential piston G, and the suction side of the pump through pipes anc passages n<7>, n<6>, n<2> n<3>, n<8>, and the piston G which is open on its right end to the pressure in the cylinder A<8> through a pipe a<9>, is forced to the left and opens a by-pass valve g<5> connecting the delivery pipe a<2> to the suction pipe a<1>. Owing t< the fall of pressure in the pipe a<2>, the spring valve a<5> closes and the pump runs free from pressure. When the pressure in the pipes a<SP>3>, a<10> falls, the piston H is moved to the right by the pressure in the cylinder J, and the spring m<1> operates the lever P to open the valve Q and close the valve R. Connexion is thus made between the left end of the piston G and the right end of the cylinder A<8> through pipes and passages n', n<6>, n<5>, n<4>, n<9>, and the piston G moves to the right and closes the valve g<5>. By moving a valve C<2> controlling the flow and return ports c<4>, c<5> of an hydraulic motor fed by the pump, the stroke is reduced, the valve g<5> opened and the valve a<5> closed.
Patent GB-506106-A (GB)
Title: Improvements in coil ignition systems for internal combustion engines
IPC: H04B15/02
Filed: 1938-06-17
Abstract: 506,106. Protective arrangements. DEBENHAM, W. R., and ALEXANDER. D. P. June 17, 1938, No. 18044. [Class 38 (iv)] [Also in Group XXVII] Multi-section filters F are placed in the leads between a general purposes battery B and screened ignition, windscreen-wiper, fan or other apparatus, generating impulses which interfere with radio reception on aircraft, motor-vehicles and the like, Each filter is enclosed by a screen, and the sections are screened from each other. A filter may be placed in each main lead (as shown) or filters may be placed in each branch-lead to the different items of apparatus. If an earth return is used, filters need be inserted only on the insulated side of the battery. Each filtersection may consist of a coil having an inductance of 19 micro-henries and a condenser having a capacity of 3 micro-farads. Specifications 496,695 and 505,660 are referred to.
Patent GB-743982-A (GB)
Title: Improvements in and relating to oil fuel burning equipment
IPC: F23C7/00
Filed: 1952-07-16
Abstract: 743,982. Liquid-fuel burners. RIDLEY, W. T. C., LITTLEJOHN, C. R., RICKS, F. J., and MAXWELL, D. C. July 16, 1952, No. 18046/52. Class 75(1). [Also in Group XII] Oil fuel burning equipment comprises a central member or tube 3, Fig. 1, adapted to take an oil fuel burner, surrounded by an air register comprising members forming an inner primary air annulus 9 with a primary air swirler 6 and an outer secondary air annulus 10 arranged with a spill opening whereby air may spill from the primary into the secondary air annulus over the primary swirler, the whole being adapted for combination with a refractory throat 15 in such a way that the primary swirler is positioned within the throat in the operative or burning position. The secondary air annulus 10 may be provided with a swirler 16 having vanes directed in the same sense as the vanes of the primary swirler 6 ; the swirled secondary air may be directed towards the opening 11 over a flared member 17 which confines the air to the outer portion of the annulus 10 and induces a flow of spill air from the primary annulus. An air shutter 18 is provided to close the peripheral openings 12, 13 when the burner is not in use ; a supply of cooling air for the burner is maintained through a space 21 which is always open. The burner may be provided with a belled sleeve 4 for directing a flow of cooling air over the sprayer, and the sleeve may be provided with three radial slotted openings for the purpose of avoiding a low pressure condition over the sprayer tip. The refractory throat 15 is preferably of conical form having an included angle of 17¢-27¢ degrees, and the swirler 6 is preferably positioned so that the distance of the downstream end of the swirler from the narrower end of the throat is in a ratio of 0.6 to 0.7 with the overall length of the throat. Referring to Fig. 6, a swirler positioning tube 22 is arranged to be slidable axially and may be locked in either of two positions, a forward burning position or a retracted position, by means of a detent cam 26 which co-operates with depressions 22c and 22d in the positioning tube. The positioning tube carries a central sprayer body 30 and an oil valve assembly 31, the sprayer body 30 being secured to the positioning tube by an oil sealing screw 33. The valve assembly includes an oil valve 36 and an air blast connection 41 for purging the, sprayer by air. A hinged seating cap 46 is arranged to drop over the end of the swirler positioning tube when the sprayer is withdrawn to prevent hot gases from the furnace blowing back into the stokehold.
Patent GB-255497-A (GB)
Title: A process for making coherent granular non-metallic substances
IPC: C03B19/06
Filed: 1926-07-19
Abstract: 255,497. Uhlmann, A., (Assignee of Jenaer Glaswerk Schott & Gen.). July 18, 1925, [Convention date]. Processes. - Non-metallic conducting substances are caused to cohere by means of electric or magnetic fields. Fusion does not necessarily take place, but the particles are more or less welded with one another. The cohesion may be assisted by using very finely-divided raw materials, by pressure, heat, or by admixture with a liquid, preferably of low boiling point, e.g. alcohol. Substances of higher conductivity, such as salts, may be mixed with the raw materials. The process may be used to produce porous or dense ceramic bodies, glass, &c. The substances, compressed to the required shape, are placed within a 'coil a in circuit with the secondary winding b of a transformer the primary wind c of which is traversed by an alternating current. Two condensers d and a spark gap e are placed between the ends of the coil a and the winding b. Reference has been directed by the Comptroller to Specification 224,164, [Class 39 (iii), Heating by electricity].