baber/WOPTO huggingface dataset:
Patent GB-1330281-A (GB)
Title: Method of injection moulding decorative laminate
IPC: B29B13/02
Filed: 1971-01-06
Abstract: 1330281 Injection moulding on to sheets or films GENERAL TIRE & RUBBER CO 6 Jan 1971 [7 Jan 1970] 640/71 Heading B5A A plastics sheet or film 41 is manually or mechanically drawn from a reel 39 over a male, female, or flat mould 3 against the surface 7 whereof it is urged by pressure rollers 43 and is vacuum formed, prior to injecting molten plastics against one side of the sheet within a mould cavity defined by the mould part 3 and a further mould part 5 through which the plastics is injected at a sprue 33. The vacuum may be effected by air, or by oil where improved heating or cooling is required. The mould surfaces 7 and 29 may be smooth or textured. The laminar moulded article, which in the Fig. 2 embodiment comprises a food tray, may be ejected after cooling e.g. on to a conveying means by compressed air supplied through ducts 21, 23 through which the vacuum is applied. The sheet or film may be unheated, but in this embodiment the sheet 41 is heated prior to vacuum forming by hot air delivered by means 45 reciprocable between the mould parts 3 and 5. Alternatively, infra-red, high intensity light, or radio-active source heating may be employed. A projecting flap of the sheet 41, clamped between the moulds around mould periphery 17 from which air is vented during the injection, is trimmed from the moulded tray, and cutting means (not shown) disengage the tray from the reel 39. In the Fig. 5 embodiment, the sheet 41 is only partially vacuum formed into conformity with a more highly sculptured mould surface 7 e.g. for a furniture component, being subsequently urged into full conformity by the injection pressure. In this embodiment the angled air passage 21a facilitates air transfer from the curvature of the moulding surface 7 illustrated. The vacuum forming may be effected after the mould parts 3 and 5 have been closed. The passages 21, 23 may be connected to a vacuum and high pressure source, employing air, or hydraulic fluids. The moulds are preferably of metal, and faced with textured or polished hard wearing chrome or stainless steel, and the vacuum may be applied through porous metal or ceramic elements, instead of the passages 21, 23 shown. The film or sheet 41 may have a decorative finish effected by embossing, silk screening, printing, photography, or hand painting, simulating wood grain, leather, patent leather, and suede, and may comprise vinyl polymers and co-polymers, vinyl and polyurethane foam, and laminates to fabric or e.g. of polyvinyl chloride to a polymeric foam. A styrene-acrylonitrile polymer may be injected directly on to a decorative vinyl film, but an adhesive may be applied to a vinyl film for enhanced binding e.g. to injected acrylonitrile - butadiene - styrene polymer. Various adhesives are specified which may be applied by spraying, roll-coating, brushing etc. The injected material may also comprise polystyrene, polyvinyl chloride, polyvinyl acrylate, cellulose acetate, polyethylene, polyacrylics, nylon, polycarbonates, polypropylene, and ureaformaldehyde resins.
Patent GB-694381-A (GB)
Title: Improved means for removing ash from the furnaces of steam boilers and the like
IPC: F23J1/00
Filed: 1951-01-10
Abstract: 694,381. Furnace ash pits. LORD, W. F. Jan. 9, 1952 [Jan. 10, 1951], No. 681/51. Class 51(i) An ash-removing device comprising a screw conveyer g enclosed for the greater part of its length in a coaxial tube m projects at one end into an ash-pan e beneath the back end of a grate c and at the other end projects, together with the tube m, through a plate n which closes the front of the ashpit.
Patent GB-822904-A (GB)
Title: Improvements in or relating to preserving and ripening vegetables
IPC: A23B7/148
Filed: 1956-01-09
Abstract: 822,904. Preserving and ripening fruit &c. BONOMI, F., and BUEHLER, E. Jan. 9, 1956 [Jan. 8, 1955 (2)], No. 725/56. Class 49. Fruit and other vegetable products are placed in a closed, gastight chamber containing initially a predetermined mixture of gases including oxygen, in a predetermined concentration, and an inert gas such as nitrogen, and the total pressure of the gases is initially adjusted and thereafter maintained so as to preserve or to produce a predetermined rate of ripening; preferably both the concentration of oxygen and the total pressure of the mixture of gases are kept constant and any gaseous carbon dioxide in the chamber is removed. For preservation the concentration of oxygen is preferably relatively low and the total pressure approx. 100-150 cm. water below atmospheric, while for ripening a relatively high oxygen concentration and a total pressure 100-200 cm. water above atmospheric are employed. A metered mixture of gases from a pipe 3 and oxygen fed through pipe 3<SP>1</SP> from a valve 7, electromagnetically operated by a pressure gauge 10, are delivered to a preserving and ripening chamber 1 through a pipe 2 which terminates in a crosspipe 2<SP>1</SP> provided with holes inclined at an angle of 45 degrees towards the interior of the chamber. Carbon dioxide is absorbed by solid calcium hydroxide contained in casing 11 located below a false floor 12 on which fruit for preserving or ripening is placed. Additionally the chamber atmosphere may be circulated via a crosspipe 14, an absorption tower 19 wherein the carbon dioxide is collected for recovery, an aspirator 20 and return pipe 22. Apparatus for conditioning the atmosphere in the chamber comprises a thermostat 47 responsive to the temperature in the chamber and controlling an evaporator 36 of a refrigerating apparatus (not shown), twin helical fans 37 and heat convectors 43 with fans (not shown) through an electrical circuit arrangement.
Patent GB-536666-A (GB)
Title: Improvements in or relating to draught mechanism of tractors
IPC: B60D1/44
Filed: 1940-01-12
Abstract: 536,666. Couplings for vehicles. VALLANCE, J. V. Jan. 12, 1940, No. 738. Convention date, Jan. 12, 1939. [Class 103 (v)] The r of a tractor is ted to be connected at its rear end to an agricultural implement or vehicle and at its forward end has rolling engagement with a transversely arranged chain or like flexible member secured at its ends directly or through draught rods to the tractor. As showing the draw-bar 16 is looped at the rear for a hook or other connection on the implement to be hauled and at its front end carries a grooved roller 17 arranged to run on a chain 14 secured at its ends to diagonally arranged draught rods 7, 8 bolted at 9 to the tractor frame and supported at the rear in the heads 22b pins 22 mounted in the rear axle housing. To sustain and guide the draw-bar 16 it is provided with rollers 18 that run between upper and lower rails 26 mounted on a frame 21 pivoted on the pins 22 and further supported from the tractor frame by adjustable links 27. The rods 7, 8 cross each other beneath the tractor frame and may there bear on a plate 12a. The draught-pull is taken by the chain 14 and the arrangement is such that the rear of the tractor is subject to a downward pressure through the rods 7, 8 and the pins 22. When the tractor is steered the rod 16 swings laterally towards the side to which the turn is being made. The draught pull is then mainly transmitted by the chain to the rod 7 or 8 which has its rear end at that side and thus to the opposite side of the tractor at the front part thereby preventing lateral skidding of the front wheels. The front portions of the rods 7, 8 may be dispensed with, the rods then being attached at their front ends to a block or strap which could replace the plate 12a, and extending to the rear either diagonally or parallel to each other. Or the rods 7, 8 may be dispensed with in which case the ends of the chain 14 are connected directly or by brackets to the opposite sides of the tractor frame. A stop member 32 may be provided on the draw-bar 16 for engagement with the guide member 26 to limit forward movement of the bar.
Patent GB-670394-A (GB)
Title: Elastomer-resin compositions
IPC: C08L9/02
Filed: 1950-01-11
Abstract: A composition comprises (1) a copolymer of 35-48 per cent acrylonitrile and from 65 to 52 per cent of butadiene-1,3; (2) a copolymer of from 18 to 26 per cent acrylonitrile and from 82 to 74 per cent of butadiene-1,3; and (3) a copolymer of from 50 to 85 per cent styrene and from 50 to 15 per cent acrylonitrile, (1) and (2) each being present in the proportions of from 25 to 75 per cent of the sum of (1) and (2), and (3) being present in an amount ranging from 50 to 90 per cent of the sum of (1), (2) and (3) and optionally (1) and (2) may have a content of from 30 to 50 per cent of a toluene-insoluble "B" gel, i.e. the ratio of the weight of the insoluble dried product, remaining after extracting a sample with toluene, to the weight of the original sample.  The composition may be made by milling a mixture of (1) and (2), optionally in the presence of a heat stabilizer, e.g. mono- and di-heptyl diphenylamines, 2,5-ditertiary-butyl para cresol, and phenyl beta-naphthylamine, at a temperature of from 280 DEG  to 340 DEG  F. until the copolymers have the above "B" gel content and then incorporating (3).  The composition may include fillers, plasticizers, e.g. dibutyl sebacate and dioctyl phthalate and vulcanizing agents, e.g. sulphur.  The composition may be calendered into a continuous thin sheet, several plies piled up and moulded under heat and pressure.  Specification 670,393 is referred to.
Patent GB-588862-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F28F3/08
Filed: 1944-05-25
Abstract: 588,862. Refrigerating. GENERAL FOODS CORPORATION. May 25, 1944, No. 744/47. Convention date, July 6, 1943. Divided out of 588,826. [Class 29] [Also in Group XXIX] Hydraulic presses of the kind used for operating the plates of a freezing apparatus of the multiple horizontal plate stack type, as described in Specification 588,826, have the platen j connected to the piston rod a by means permitting limited tilting movement of the platen. The lower wall d of the platen is cupped to receive the rounded lower end of the piston rod, and a nut f on the rod has inclined surfaces e which contact with inclined surfaces g of an aperture in the top wall h to limit the tilt. In a modification, the surfaces g, e are spherical, the tilt being limited by the engagement of a lock nut i against the walls of the socket b.
Patent GB-187169-A (GB)
Title: Improvements in graters for nut-megs and the like
IPC: A47J43/25
Filed: 1922-01-10
Abstract: 187,169. Patey, E. Jan. 10, 1922. Graters.-A grater for nutmegs and the like comprises a. tubular casing a having a serrated disc a<11> and handle a<1> at one end, and a rod b, having a handle b<1> and a serrated disc b<11> telescoping into the other end. The casing a has an opening d thrcugh which the nutmeg is inserted, the opening being normally covered by a sliding segmental plate e having perforations c' some of which register with perforations in the casing a. The plate e is provided with a lip e<1> for sliding the plate and a recess e<11> which engages a stop f. Rotation of the plate e is prevented by a stop plate g. A spring h presses the nutmeg between the discs which grate the nutmeg by a relative rotation, the powder escaping through the perforations. The slide e may be dispensed with by making the handle a<1> detachable, the nutmeg being inserted through the end of the casing a.
Patent GB-584602-A (GB)
Title: Improvements in or relating to air or fluid pressure regulators
IPC: G05D16/06
Filed: 1945-01-09
Abstract: 584,602. Pistons. BRITISH THOMSONHOUSTON CO., Ltd., and TUPPEN, E. B. Jan. 9, 1945, No. 774. [Class 122 (i)] [Also in Groups XXXII and XXXVII] In a fluid pressure operated switch mechanism of the kind described in Specification 418,051, [Group XXXVII], the diaphragm is free from spring pressure when there is an absence of fluid pressure. A. diaphragm 17 responds to the pressure of fluid in a port 20 by compressing a spring 1 after lost motion as the diaphragm moves through a small space 22. A member 16, free to move in a space 19, transmits pressure from the diaphragm 17 to a cup 3 on the end of the spring 1 and prevents the latter from pressing on the diaphragm when it is inoperative, Fig. 3. Specification 533,169, [Group XXXVII], also is referred to.
Patent GB-475760-A (GB)
Title: Improvements in knitted fabric comprising elastic thread and process of manufacturing the same
IPC: D04B1/18
Filed: 1937-01-11
Abstract: 475,760. Knitted fabrics ; stockings. SCOTT & WILLIAMS, Inc. Jan. 11, 1937, No. 815. Convention date, Jan. 16, 1936. [Class 74 (ii)] [Also in Group VII] A plain knitted fabric, which may be used for the outer wall of a stocking welt, comprises successive courses of main or body yarn or yarns knit at all wales in all courses and a rubber thread engaged with a number of courses of the yarn at spaced wales which are staggered in successive rubber courses; the rubber thread may be engaged with the body yarn in spaced courses and the fabric so made may be used to form the top of the stocking. The rubber thread may be engaged with the body yarn by being knit with the yarn at the spaced wales and floated between such wales or by being engaged with the sinker loops of the fabric and not drawn into loops and knit. As shown in Figs. 2 and 3, the inner wall w<1> of a stocking welt W is formed of plain fabric and the outer wall w<2> of plain fabric with a rubber thread R knit on every sixth needle of successive courses, loops of rubber thread knitted in courses d and f occurring in wales 2 and 8 and being staggered with respect to the loops in courses e and g which occur in wales 5 and 11 while the rubber thread between the loops is floated to the back of the fabric. The top T of the stocking is formed of plain fabric with rubber thread knit on every fourth needle of every fourth course, the loops of rubber thread in courses o and w being staggered with respect to those in courses k and s; in the finished fabric, the tension placed on the rubber thread R during knitting causes the wales of the non-elastic thread S to be drawn together so that, when the fabric contracts, the portions between the wales in-which the rubber thread is knit are bulged outwards beyond those wales, and the staggering of the wales in which the rubber thread is knit in the different courses gives the stocking top T, Fig. 1, an appearance of interrupted diagonal ribs. In the case of the stocking welt W, the rubber thread is floated past a greater number of wales than in the case of the top T and the bulges between the wales in the contracted welt are consequently greater in extent, do not assume any regular arrangement, and are generally in the direction of the wales.
Patent GB-718620-A (GB)
Title: Improvements in signal frequency dividers
IPC: H03B19/12
Filed: 1952-01-10
Abstract: 718,620. Valve circuits for frequency division. RADIO CORPORATION OF AMERICA. Jan. 10, 1952 [Jan. 22, 1951], No. 820/52. Class 40 (6) In a frequency divider of the type in which the input frequency and the output frequency or a harmonic thereof are mixed at the input of an amplifier to produce the output frequency, the amplifier comprises a single triode valve 1, the output frequency of the harmonic being fed to the grid from a point on a series resonant circuit 9, 11 connected across the output circuit. The input frequency may be applied as shown, to the grid or to a tuned circuit in the cathode lead. Resonant lines may replace the lumped tuned circuits
Patent GB-1097931-A (GB)
Title: Improvements in or relating to a propellent cartridge for projectiles fired from a mortar
IPC: F42B5/313
Filed: 1965-01-07
Abstract: 1,097,931. Ammunition cartridges. DYNAMIT NOBEL A.G. Jan. 7, 1965 [Jan. 8, 1964], No. 835/65. Heading F3A. A propellent cartridge for insertion in the tail end of a mortar projectile comprises a cylindrical tube 1 having an integral closure 3 at one end and a primer-housing base 2 positively engaging in the open end of the tube 1, both tube and base being made of synthetic plastics material. The base 2 and the tube 1 are provided with interlocking grooves 5 and ribs 6. In addition the base and/or the exterior of the tube has a resilient flange or flanges 7, 9 to give frictional pressure against the bore 8 of the projectile.
Patent GB-832763-A (GB)
Title: Improvements in or relating to method of manufacturing honeycomb material, and honeycomb product resulting therefrom
Inventor: STEELE ROGER C
IPC: E04C2/36
Filed: 1956-01-10
Abstract: 832,763. Making composite sheets and honeycombs; perforating. HEXCEL PRODUCTS Inc. Jan. 10, 1956, No. 881/56. Classes 83 (2) and 83 (4). [Also in Group VIII] Unexpanded honeycomb material is made by applying longitudinally extending spaced, parallel lines of adhesive to both faces of one, or to one face of each of two continuously moving webs, cutting the web or webs transversely into separate, flat sheets of uniform size, forming a stack of the sheets and sticking them together so that the lines of adhesion between one side of the sheet and an adjacent sheet and the lines between the other side of that sheet and an adjacent sheet are staggered with respect to each other. The web material may be metal foil, paper. or resin impregnated textile. A thermoset adhesive may be used such as a mixture of polyvinyl-butyral or formal resin and a phenol-aldehyde resin. The sheet material may be perforated. As shown, a web 10, Fig. 1, is drawn from a roll 11 through a device for applying stripes of adhesive comprising spaced discs or washers 14, 15, the discs 14 being staggered with respect to discs 15. The coated web passes through a drying oven 26, over idler rollers 27, and between driving rollers 12, 13 to a rotary cutter having a rotating blade 29 and fixed blade 31 by which the web is cut into equal single sheets which fall on to endless band 34 and are carried to joggle table 33, every other sheet being turned over by a hand or mechanically-operated sheet-turning mechanism 37 so that adhesive stripes on adjacent sheets register with one another. The stack of sheets is then placed in a heated press to activate the adhesive. In an alternative method a plain web is joined with the coated web and cut simultaneously therewith, the composite sheets then travelling without being turned to the joggle table and the stack thus formed being united as before. In a further alternative two sheets 70, 71, Fig. 7 are striped with adhesive by discs or washers 72 and 73, the discs 72 being staggered with respect to discs 73, the coated sheets meet, and are cut simultaneously by cutter 28b, travel to the stack without being turned and are united as above. A perforating mechanism such as a rubber-covered roller with needles stuck in its surface in random arrangement or with needles stuck in random arrangement on the surface but leaving the parts engaging with the coated stripes free from needles may be incorporated in any of the above machines between the oven stage 26 and the cutting stage 28. When metal foils are perforated co-operating press rolls may be placed directly after the perforating rolls to smooth out any burrs formed.
Patent GB-868728-A (GB)
Title: An improved pedestal for supporting a column or like standard
IPC: A47F5/04
Filed: 1959-01-09
Abstract: 868,728. Stands. JERRARD, H. N. March 3, 1960 [Jan. 9, 1959], No. 920/59. Class 52(3). A pedestal comprises a socket member 10 having a central recess of frusto - conical shape and grooves 11 to receive legs 17 which are held therein by a wedging member 12 drawn into the socket by a screw member 13 secured to the foot of a column supporting a reading lamp or other articles. The legs are thus independently adjustable.
Patent GB-1137841-A (GB)
Title: Wine presses and the like
IPC: B30B9/04
Filed: 1966-01-07
Abstract: 1,137,841. Wine presses. W. ALPINI. 7 Jan., 1966 [8 Jan., 1965], No. 937/66. Heading A4C. In the wine press of Fig. 1 in which hydraulic means are provided for operating the press plate 5a, a threaded collar 2 serves to raise and lower the entire hydraulic unit on the threaded rod 1. In the embodiment of Figs. 1 and 2 a pair of hydraulic cylinders 4 are mounted on a base plate 5 to which the press plate 5a is attached and which has at the centre a hole in which a tube 6 is welded through which the rod 1 freely passes. Pistons 3 operating in cylinders 4 are secured to the collar 2. A pump 13 pumps hydraulic fluid from a reservoir 14 formed by a metal sheet 7 surrounding the cylinders via a bypass valve 15 and tube 10 into one of the cylinders and thence to the other by interconnecting tube 9. The plate 5 is thus lowered and simultaneously springs 11 within each of the cylinders are compressed so that an operation of bypass valve 15 to place tube 10 in direct connection with reservoir 14, said springs will return the unit to the starting position. In the embodiment of Fig. 4 (not shown) a single central spring is used instead of springs within the cylinders; in Fig. 5 (not shown) the return action is obtained by use of double acting pistons instead of springs; and in Figs. 6 and 7 (not shown) a single piston surrounding the rod 1 is used, with hydraulic and spring return respectively.
Patent GB-1074072-A (GB)
Title: Keyed automatic gain control circuits
IPC: H04N5/53
Filed: 1965-01-08
Abstract: 1,074,072. Television A.G.C. circuits. STANDARD TELEPHONES & CABLES Ltd. Jan. 8, 1965 [Jan. 9, 1964], No. 957/65. Headings H3Q and H3T. In a keyed A.G.C. system for a television receiver the video signal is applied at 1 to a diode 3 which is biased at 4 so that only the sync. pulses pass through to charge capacitor 5. Keying pulses from the line transformer are applied through 9 to render diode 7 conductive and thus allow capacitor 5 partially to discharge through diode 6. This current pulse is proportional to the amplitude of the input video signal and charges capacitor 12 to a corresponding potential. The difference between the potentials across capacitors 5 and 12 is smoothed by 10 and 11 and provides the A.G.C. voltage at 13, 14; this may be converted to a low impedance source at 14<SP>11</SP>, 15 by an emitterfollower 16 to supply transistorized R.F. and I.F. stages. If the input signal is large or increases suddenly control may be lost due to clipping of the sync. pulses by overdriven R.F. or I.F. stages. To avoid this (Fig. 2, not shown) the bottom end of potentiometer 4 is joined to the top of diode 7 instead of to earth, and diode 6 (reversed in polarity) is joined directly to capacitor 12. The A.G.C. signal is then of opposite polarity and the transistor 16 is therefore operated in the common-emitter mode. The keying pulses may be differentiated and arranged to occur at the pedestal level of the signal to maintain the black level constant. The invention avoids the necessity for switch-on surge suppressors to eliminate intercarrier buzz during heating up as the control voltage is immediately available.
Patent GB-997450-A (GB)
Title: A process of, and apparatus for, the decatizing of fabrics
IPC: D06B1/00
Filed: 1964-01-09
Abstract: 997,450. Decatizing. F. DRABERT, E. DRABERT, and F. DRABERT, [trading as DRABERT SOHNE]. Jan. 9, 1964 [Nov. 13,1963], No. 973/64. Heading D1L. [Also in Division F4] In decatising apparatus wherein a wrapper 1 is wound on to a steaming drum 2 with the fabric and is unwound therefrom after each decatizing operation, the wrapper 1 is subjected to a continuous drying process as it is unwound. In the form shown the wrapper, on unwinding, is pulled at constant tension by a take up drum 3 through a hot air drying device 4 which includes elongate nozzles extending the full width of the wrapper. A pair of fans which draw air through filters and heating means provide the necessary air pressure. The insulating sides and cover of the machine are hinged to provide access to the interior of the dryer.