baber/WOPTO huggingface dataset:
Patent GB-1299014-A (GB)
Title: Process for the manufacture of foam glass
Inventor: KURZ FREDRICK WILHELM ANTON
IPC: C03B19/08
Filed: 1970-03-05
Abstract: 1299014 Foamed glass F W A KURZ 5 March 1970 10677/70 Heading C1M Inorganic foamed glass is produced by blending together one or more mineral powders which are amorphous or capable of being rendered amorphous by heating below 600‹ C. having at least 50% by weight SiO 2  and a specific surface area of at least 3000 cm.<SP>2</SP>/g. with one or more gas forming agents and one or more alkali metal containing substances and expanded at a temperature of 750‹ to 950‹ C. A crystalline powder may be mixed with the amorphous powder prior to expansion. The alkali containing material may be sodium or potassium water glass, solid alkali silicate, alkali hydroxide or an alkali carbonate. The gas forming agents may be carbon or sulphur containing and/or hydrogen evolving substances. The expansion process may be one stage in which case any water present in the starting materials assists the expansion, or a two-stage process in which the major portion of the water is removed by heating the starting materials at 200-350‹ C., the resulting mass being cooled and pulverized prior to the expansion stage.
Patent GB-851139-A (GB)
Title: Improvements in or relating to feeding webs
IPC: D01G15/40
Filed: 1959-03-26
Abstract: 851,139. Feeding webs. SCHJELDAHL CO., G. T. March 26, 1959 [Jan. 26, 1959], No. 10709/59. Class 100(1) A web feeding device has a mechanism comprising stationary rollers in engagement with the web and rollers adapted to move to increase and decrease the length of web travel through the device a drive roller positioned adjacent the web prior to its entering the mechanism, a pinch roller movable towards the drive roller and into pressing engagement with the web and drive roller so as to impart drive to the web, and a resilient link interconnecting the pinch roller and the mechanism, the link causing web driving upon a reduction in the length of web travel and the link moving the pinch roller out of engagement with the driving roller to interrupt web driving upon an increase in such length. Webs 15, 16 are fed from supply rolls 13, 14 by a driving roller 31 co-operating with a pinch roller 38. The web passes around rollers 42, 43 journalled in arms 41 of a rocker frame 39 rotatably mounted on a shaft 40. A spring 51 connects one of the arms 41 to a lever 36 carrying the roller 38, such that as the length of web, travel around the rollers 42, 43 and a fixed roller 48 decreases, i.e. the arms assume a more upright position, the roller 38 is brought more firmly into engagement with the webs to effect feeding. The engagement of the roller 38 is released when the length of web travel is increased. Links 54 connected to the frame 39 actuate arms 57 freely rotatable on a shaft 27. Abutments 58 on the arms 57 actuate radial pins e.g. 29, upon counter clockwise rotation of the arms 57. The pins operate a variable speed device, not shown, in the drive to the roller 31, through a crank 26, link 25, and an arm 24, thereby increasing the speed of the roller 31.
Patent GB-624750-A (GB)
Title: Magnetic cores, especially designed for high frequency apparatus and method for the manufacture of said cores
IPC: H01F1/26
Filed: 1947-04-22
Abstract: 624,750. Magnetic dust cores. HATTE, P. L. M. April 22, 1947, No. 10771. Convention date, March 3. [Class 38 (ii)] A magnetic core is made from a mixture of magnetic material such as iron powder and a superpolyamide such as nylon, or a mixture of superpolyamides. The substantially insoluble superpolyamide is suspended in colloidal form in a liquid such as a 4 : 1 mixture of alcohol and water at 250‹ F. and one atmosphere pressure, then cooled and the resulting gel mixed in a heated mixer with the magnetic powder. The mixture is precipitated by cooling, rolled between smooth or fluted rollers, dried, crushed, and moulded in a press. The crushing may be replaced by cutting it with a rotating knife, as it is extruded from a forming machine.
Patent GB-887484-A (GB)
Title: Improvements in boxes and lids
Inventor: WEAVER JOHN FREDERICK
IPC: B65D5/22
Filed: 1957-04-02
Abstract: 887,484. Boxes. ROBINSON Ltd., E. S. & A. April 2, 1958 [April 2, 1957], No. 10781/57. Class 18. A box or box-lid comprising opposed side walls 3 double end walls 4 folded up from a main panel 2, and extensions 6 on the side walls 3 enclosed in the walls 4 has a length of cord or paper strip 7 applied to the blank at the free edge of the side walls 3 and extensions 6. The reinforcement 7 is held in place by a layer of paper 8 which forms an outside surface to the box. The outer edges of extensions 6 can be cut away if too bulky to be enclosed in the double end walls.
Patent GB-734587-A (GB)
Title: Improvements relating to the treatment of articles made from fabrics
Inventor: EVANS JOHN GWYNANT
IPC: D06M15/70
Filed: 1952-04-29
Abstract: In a process of producing a dimensionally stable fabric article, e.g. a collar, with a dressing substantially resistant to laundering, the curing or setting of the dressing agent is at least initiated, and the fabric is compressively shrunk, in one operation.  By "curing or setting" is meant the transformation of the dressing agent from the form in which it is applied to a permanent dressing intimately associated with and adherent to the fabric of which the article is made.  The article may be made from single or multiple ply fabric. Dressing agents include thermo-setting or thermoplastic synthetic resin pre-condensates or polymers applied as aqueous dispersions, solutions, or in powder form.  The article may be impregnated with the agent and partially dried below curing or setting temperature before the combined setting and shrinking operation.  In one example, a fabric is filled with an aqueous dispersion of carboxymethyl cellulose and dried; a collar cut from this fabric is dressed on the inner surface with a solution of 50 parts of an epoxy resin and 1.75 parts of ethylene diamine in 98.25 parts of a 50 : 50 mixture of ethyl alcohol and toluene, the coating is allowed to dry, and the collar is then mechanically shrunk and the dressing cured by contact with a metal roller at 140 DEG  C.  Specification 541,831, [Group VII], is referred to.
Patent GB-483778-A (GB)
Title: Improvements in abrasive bodies and manufacture thereof
IPC: B24D3/34
Filed: 1937-04-15
Abstract: Abrasive bodies are prepared from a composition comprising abrasive grains (such as fused alumina, emery, carborundum, silicon carbide, boron carbide, tungsten carbide, tantalum carbide or diamond), an unmatured resinous bonding material (such as a phenolaldehyde resin), a small quantity of soluble anhydrite, anhydrous calcium oxide, dehydrated aluminium oxide or activated silica gel and, if desired, a filler (such as cryolite, clay, quartz, calcium carbonate, calcium sulphate or other minerals) and a liquid plasticizer (such as furfural, creosote oil or liquid phenol-formaldehyde resin). Specification 305,237, [Class 2 (iii)], is referred to.
Patent GB-313435-A (GB)
IPC: B64C35/00
Filed: 1929-04-08
Abstract: 313,435. Dornier Metallbauten Ges., and Dornier, C. June 11, 1928, [Convention date]. Floats and hydrovanes, arrangement of.-The side fins or floats of a boat seaplane are constructed so that their undersurfaces blend into the sides of the hull in a concave curve b. The upper surfaces d may be similarly curved or, alternatively. one or both of the surfaces may be constructed so as to follow a substantially parabolic curve in cross-section. Reference has been directed by the Comptroller to Specifications 4634/14 and 157,267.
Patent GB-186950-A (GB)
Title: Manufacture of viscous oily compositions and treatment of waxes for use therein
Filed: 1921-04-13
Abstract: Aldehyde compounds of waxes or bitumen are prepared by treating wax or crude bitumen, such as ozokerite, beeswax, montan wax, carnauba wax, or Japan wax, with an aldehyde, such as formaldehyde or furfurol, in presence of an alkali, with or without addition of a ketone, such as acetone or methylethyl ketone, or a divalent or trivalent alcohol such as glycol or glycerol.  The product is washed to remove alkali.  It may be mixed with 20-30 per cent of paraffin wax, ceresin, ozokerite or the like without affecting its properties. Instead of aldehydes, their polymerization products or substances, such as hexamethylenetetramine, capable of liberating aldehyde may be used.ALSO:Wax or crude bitumen, such as ozokerite, beeswax, montan wax, carnauba wax, or Japan wax, is treated with an aldehyde, such as formaldehyde or furfural, in presence of an alkali, with or without addition of a ketone, such as acetone or methyl ethyl ketone, or a divalent or trivalent alcohol, such as glycerol or glycol.  The product, after removal of the alkali by washing, may be added to mineral, tar, animal or vegetable oil, yielding viscous or paste-like products which may be used as lubricants or cosmetics, or emulsified with water forming salves or leather-dressing compositions.  It may be mixed with 20-30 per cent of paraffin wax, ceresin, ozokerite or the like without affecting its properties.  Instead of aldehydes, their polymerization products or substances, such as hexamethylenetetramine, capable of liberating aldehyde may be used.
Patent GB-310175-A (GB)
Title: Improvements in sliding windows for vehicles
IPC: E05F11/38
Filed: 1928-04-13
Abstract: 310,175. Hobson, Ltd., H. M., and Harding, H. April 13, 1928. Vehicle-window opening and closing apparatus; windows having signalling apertures.-Upper and lower vertically-sliding sections of a vehicle window are mounted in the same guide channels and are actuated by the same mechanism from within the vehicle so that the sections may be separated to open a space below the upper section for signalling by hand &c. when said section is fully raised. The actuating means may comprise a chain C and pair of studs D, E, engaging the upper and lower sashes respectively, as shown in Fig. 1 with the sashes fully closed. During the first opening movement of the lower sash by the stud E, the stud D will move horizontally between the upper pulleys without opening the upper sash. When the stud D begins to move vertically the two sashes descend together, and during the final opening movement the bottom sash remains stationary. The chain is actuated by a handle H and gearing. The independent movement of the bottom sash may be given by a lever K, Fig. 4, fast on the gear H<4>, the top sash being connected to a lever J which has a lost-motion connection by pin-and-slot J<1>, H<5>, with the gear H<4> to which it is connected by a spring J<2>. In a further modification, Fig. 8, the upper sash is actuated by the spring-controlled lever J and the lower sash by articulated levers K, K<3>, the levers K<3>, J, being connected bv pin-and-slot and the lever K driven by the spindle H<3>. In this arrangement, the window sashes are separated as shown, and the lower sash is first raised by turning the spindle H<3> clockwise, both sashes being lowered by continued movement.
Patent GB-205522-A (GB)
Title: Improvements in or relating to ordnance breech mechanism
IPC: F41A5/32
Filed: 1922-04-19
Abstract: 205,522. Dawson, Sir A. T., Buckham, Sir G. T., and Asbury, D. F. April 19, 1922. Ordnance breech mechanism.-Relates to power-operated mechanism of the type in which separate piston-andcylinder elements are employed for rotating the breechscrew and swinging the carrier, and consists in arranging that during the opening of the breech the operation of the unlocking element is aut.omatically followed by the opening operation of the carrier-swinging element and vice versa during the closing of the breech. The invention is shown applied to the breech mechanism described in Specification 6739/12, the power element D, D<1> for rotating the screw being pivoted between the crank pin c<5> of the usual radial crank-shaft C<2> and a spigot C' on the carrier C, and the power element E, E<1> for swinging the carrier being pivotally connected by pins e<1>, e<2> to a bracket e on the gun and a carrier bracket E<2> respectively. Fig. 4 shows the means whereby the power elements are connected to the main pressure and exhaust pipes G<2>, G<3> respectively. To permit of the use of rigid pipes whilst allowing the carrier to swing freely, the pipe e<5> leading to the cylinder E and the pipes c<2>, c<3> leading to each end of the cylinder D are connected to sleeves f<1>, f, f<2>, which can swivel coaxially with the carrier on the spigot ends F, F<2> of the pipes F<4>, F<3> leading from the control-valve casing G. The control valve G<1> can be set by a handle g' to three positions.- (1) for opening the breech, in which the pressure port g<2>, Fig. 4, is connected by a passage G<1x>, Fig. 18, with the port g<4>, and the exhaust gort g<3> is connected with the port g<5> through the space G<x>, (2) for closing the breech, in which the port g<2> is connected to the port g<5> and the port g<3> to the port g<4>, and (3) for by-passing the liquid during hand-working in which the ports g<4>, g<5> are connected, the ports g<2>, g<3> being blocked. A movable stop prevents the handle g<1> being moved into the by-pass position inadvertently. When the pressure from the mains is not available, a handpump G<4>, Fig. 4, is utilized. A dash-pot buffer device in the cylinder E brakes the opening movement of the carrier. When the breech-screw is unlocked, the crank pin c<5> is almost on the dead centre position relatively to the crank shaft C<2> and a roller c<6> can then ride on a control-arc C<7> during the swinging of the carrier. The arc serves during the closing movement of the carrier to prevent locking rotation of the screw until the carrier is nearly closed. For hand-working, the hinge pins of the piston-and-cylinder elements can be readily removed to enable the elements to be swung aside and reattached in inoperative positions. A hand-lever C<8> is then attached to the crank-shaft, the hand-lever having a guard to cover the hole for the hinge pin of the piston rod D<1>. For swinging the carrier by hand, a screw gear operated by a hand-wheel H is provided, the hand-wheel and gear being swung aside for power working.
Patent GB-1349472-A (GB)
Title: Web transport device
IPC: G03B21/11
Filed: 1971-04-23
Abstract: 1349472 Feeding webs MINNESOTA MINING & MFG CO 23 April 1971 [24 April 1970] 11099/71 Heading B8R [Also in Division G2] A web transport system for driving a web, e.g. a microfilm, past a station such as a viewing point 116 and for registering a desired portion of the web with the station comprises: a first motor 37 having an axially movable rotor and drive shaft which couples and uncouples with a gear-box 36 connected to a drive shaft 35 for a supply reel (32) mountable on a hub 126 of the shaft 35 (Figs. 1 and 5, not shown); a similar motor 140 and gear-box 141 connected to the drive shaft 143 of a take-up reel 125; a threeposition switch 151 with a central "off" position and operable to energize one motor or the other; and a counter 180 which is utilized to determine the registration of the web with the station 116. When either motor is energized the rotor of that motor couples with the associated gear-box to drive the attached reel and to wind the web thereon. Upon de-energization of the motor, effected by an operator in response to a desired reading on the counter or footage meter 180, the rotating rotor with its high angular momentum is uncoupled from its associated gear-box causing the drive shaft 35 or 143 to stop abruptly due to the frictional forces in both gear-boxes, whereby a required portion of the web, e.g. a frame of the microfilm, is stopped at the station 116. The take-up reel 125 is also connected to the supply reel through a manually operable drive system (Fig. 3, not shown) such that manual adjustment of a knob 152 on the take-up reel in either direction affords incremental movement of the web relative to the station 116.
Patent GB-255946-A (GB)
Title: Improvements in hair cutting apparatus
IPC: B26B21/12
Filed: 1925-04-30
Abstract: 255,946. Roche & Henshilwood, Ltd., (Ocansey, A. J.). April 30, 1925. Razors and shavers.-A device for cutting hair using a safety razor blade 1 in conjunction with an ordinary comb 12 comprises a bent sheetmetal member 6 embracing the back of the comb and provided with tongues 7 under which a bladecarrier plate 5 is adapted to slide, to adjust the distance of the blade-edge from the ends of the comb teeth. The parts are secured in adjusted position by a clamping screw 8. Plate 5 is cut away at 13<x> and has lugs 4 in which is journaled a spindle 3 carrying a split blade holder 2 in which the blade 1 is frictionally gripped. A spring 16 is provided, urging the blade holder to the right, Fig. 1. The ends of the blade are retained between tongues 14, 15 on plate 5, the tongue 15 at the right being shorter than that at the left. To remove the blade, the holder 2 is moved to the left against the spring 16 until the blade end is clear of the right-hand tongue 15. The blade is then raised above that tongue and the holder is then allowed to move to the right, disengaging the other end of the blade from the left-hand tongue 15. The holder is then rotated to move the blade away from the comb so that it may be readily removed.
Patent GB-275128-A (GB)
Title: Improvements in burglar alarm apparatus
IPC: G08B13/22
Filed: 1927-04-27
Abstract: 275,128. Wakefield, M. W., and Wakefield, P. A. April 27, 1927. Burglar alarms.- In a closed-circuit constantcurrent system of the type in which an auxiliary closed-circuit is provided, the auxiliary alarm circuit is arranged to be in reserve to actuate the alarm if the normal alarm circuit is tampered with. The circuit f of the alarm device h is held open by a relay c in the protective circuit a, or auxiliary circuit y, f, which may be connected to the same battery g, energizing a relay v to complete the circuit f through an armature u. Should the circuit f be tampered with, the circuit y is broken, and the armature u closes an .auxiliary alarm circuit s having a separate battery t. The frame c<1> of the relay c may be connected in the circuit y and the relay and the alarm may be protected by casings g, respectively in the circuit a. For resetting, a lever m is pulled by hand to engage a hook n, thus establishing a shunt l, p across the relay terminals d, i. This shunt is completed by a switch k on the closing of a final exit door, the armature d is attracted, and the lever m is released by the attraction of the hook n by a coil o. The alarm may be rendered ineffective during the day-time by a switch j.
Patent GB-947604-A (GB)
Title: Improved gas turbine engine
IPC: F02C7/143
Filed: 1961-03-28
Abstract: 947,604. Plate-type heat exchangers. FORD MOTOR CO. Ltd. March 28, 1961 [April 4, 1960], No. 11254/61. Heading F4S. [Also in Divisions F1 and F2] In a gas-turbine engine having high and low pressure turbines and compressors and an intermediate power turbine, the air leaving the high pressure compressor is heated by the exhaust gases in twin recuperators. Each recuperator includes a heat-exchanger element removably mounted in a casing 641. The compressed air passes through semi-cylindrical conduits 646, 647, positioned in slots in sheet metal parts forming the heat-exchanger element, the air flowing through channels 655, 667 which connect the corrugated members 666 with the conduits 646, 647. The exhaust gases pass through a channel 671 to the exhaust conduit 46 through the corrugations of members 672. Seal supports 681, 682 having longitudinal spring elements 683 carry seals 684 engaging the conduits 646, 647. The seals prevent gas leaking between the heat-exchanger element and the casing 641. Specification 947,605 is referred to.
Patent GB-482846-A (GB)
Title: Process of preparing food products from papaya fruit
IPC: A23B7/157
Filed: 1937-04-21
Abstract: Food products are prepared from papaya fruit by treating the substantially ripe fruit with a lime-containing liquid, e.g. by immersing in lime-water, the treatment being continued until the natural taste, flavour and colour are wholly or almost entirely destroyed, rinsing with water and making up into food products to which any flavour or colour, or both, may be given.  The treated fruit may be made into a candied or other dried fruit product or a jam or jelly.  It may be treated with cold or hot flavouring liquids or boiled with such liquids, e.g. solutions of sugar or of flavouring essences or extracts and a colour may be imparted to it at the same time.
Patent GB-180523-A (GB)
Title: Improvements in or relating to clutches for power presses, shears, and other machines
IPC: F16D11/06
Filed: 1921-04-20
Abstract: 180,523. Rhodes, C. J. April 20, 1921. Operating clutches.-In a one-revolution clutch for presses, shears, &c., of the type in which the clutch is disengaged whatever the position of the starting-treadle, a pivoted abutment e is arranged in the path of the arm d on the rocking clutch pin a and carries a pin n engaged by a slot on a lever p, which is connected by a link q to a fixed pin u and is pivoted on a starting-lever r, a spring connection t being arranged between the levers p, r. The abutment e has slotted engagement with a fixed pin f and engages an adjustably spring-pressed piston to cushion the blow between the parts d, e. Depression of the lever r disengages the abutment e from the arm d so that the clutch engages, the constaint of the link q then causing disengagement of the lever p and abutment e, so that the abutment returns under the influence of a spring-pressed pin m into the path of the arm d. When the treadle is released, the lever p and pin n re-engages.
Patent GB-827132-A (GB)
Title: Improvements in methods of forming superficial diffusion alloys containing chromium
IPC: C23C10/06
Filed: 1956-02-14
Abstract: In a method of forming, on a solid metal body consisting of iron, nickel or cobalt or an alloy of one or more of these metals, a superficial alloy consisting of the metal of the body with an p additional metal consisting of chromium with or without aluminium, zirconium or silicon, wherein a source of vapours of the fluoride of the additional metal is heated in the same chamber as the body so that said vapours are brought, as they are formed, into contact with the body, the source is constituted by two separate parts, namely by a mass of additional metal close to, but out of contact with, the body, and by hydrofluoric acid and/or ammonium fluoride, not admixed with chromium, also out of contact with the body, the vapours produced from the hydrofluoric acid and/or ammonium fluoride when the latter is or are heated attacking the mass of additional metal to form the additional metal fluoride vapours to be brought into contact with the body. A metallic network closely conforming to the shape of the body may be used to separate the mass of additional metal from the body.
Patent GB-289259-A (GB)
Title: Improvements in fire extinguishers
IPC: A62C13/00
Filed: 1927-04-29
Abstract: 289,259. Rutledge, P. V. April 29, 1927. Extincteurs; fire-extinguishing by solut i o n s. - A fire-extinguisher is provided with a tray adapted to lie over the bottom of the liquid receptacle and catch any sediment deposited from the solution, and to be inverted or rotated from time to time to remix the sediment. In a preferred form applied to an inversion extinguisher of the kind described in Specifications 270,199 and 270,217, the tray 8 is carried by the scraper 7 attached to the rotary inner vessel 2. When the vessel 2 is rotated from time to time as described in Specification 270,217, the tray 8 carries any deposited sediment to the top of the outer vessel 1, where it is dropped and remixed with the solution by the scraper 7. In another arrangement, the tray may be supported merely by a pair of thin rods.