baber/WOPTO huggingface dataset:
Patent GB-931683-A (GB)
Title: Improvements in or relating to methods of and means for purging, filling and closingaerosol containers
IPC: B65B31/00
Filed: 1961-04-21
Abstract: 931,683. Filling aerosol containers. AERATOM A.G. April 21, 1961 [April 21, 1960], No. 14453/61. Class 125(2). Excess propellant which collects above the neck of an aerosol container during filling is supplied to a purging nozzle 26 and fed into a following container to purge it of air. A container 22, containing the active substance to be dispensed by the propellant, is positioned beneath the filling head 18 in which a valve device 23, Fig. 3, for closing the top of the container is held on the end of a cylinder 17, e.g. by suction or by a magnet. The head 18 is lowered by a pneumatic piston 3 to seal against the container and a valve 20 is then opened to supply a metered amount of propellant through passage 20a and valve 23 into the container. A piston 13 is then driven downwards to place the valve 23 within the container neck, against which it is secured by a crimping collet 16 which is expanded by a stem 11 actuated by a pneumatic piston 8. The valve 20 is then closed and valve 21 opened to allow the excess propellant which collects in the space between the head 18 and the neck 22d of container 22 to evaporate and pass through passage 24 and nozzle 26 to purge a following container 22a, the nozzle being raised and lowered by a pneumatic piston 29. The active substance is metered by a pump 33 and fed through a passage 42 into the container at the purging station.
Patent GB-913688-A (GB)
Title: Sodium perborate
IPC: C01B15/12
Filed: 1959-04-28
Abstract: Porous spherical particles of sodium perborate having high mobility and low specific gravity, generally in the form of particles more than 60% by weight of which are between 0,25 and 0,7 mms. in size, are prepared by contacting sodium metaborate solution and hydrogen peroxide in the presence of an alkali earth metal silicate stabilizer, the reaction medium being continuously stirred. Crystallization is effected at 0 DEG -15 DEG C. from a solution which is supersaturated to the extent that the weight of borate theoretically present is 4-12 times that which would be normally soluble in water a 20 DEG C.  If desired the alkaline earth metal silicate may be formed in situ provided both components thereof are added before the end of crystallization.  Magnesium silicate is the preferred stabilizer and this may be formed in situ by reacting magnesium chloride or sulphate with sodium silicate. Preferably the sodium metaborate solution has the sodium silicate dissolved therein and this is added to a hydrogen peroxide solution containing magnesium, calcium or barium chloride or sulfate.  Reagents are generally mixed at ambient temperatures and the reaction mixture thereafter brought to a temperature between 0 DEG  and 16 DEG C. with stirring until crystallization is terminated.  Examples illustrate the effect of the stirring speed, which in no circumstances should give rise to turbulence, to the influence of the time of mixing, which should not exceed 120 minutes, to the influence of the proportion and amount of the stabilizer and to the order of introduction of the reactants.
Patent GB-127772-A (GB)
Title: A Process for Rendering Castings and other Metal Articles Non-porous to Water and other Fluids.
Inventor: LEA FREDERICK CHARLES
IPC: C04B28/26
Filed: 1918-09-09
Abstract: 127,772. Lea, F. C. Sept. 9, 1918. Water solutions of chemical compounds for proofing.-Castings are rendered impervious lo water or other fluids by treatment with a solution of sodium silicate with or without sodium hydrate. The solution may be applied hot, and may be under pressure.
Patent GB-419950-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B65B11/30
Filed: 1933-05-22
Abstract: 419,950. Wrapping-machines. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd., Albion Works, Gainsborough, Lincolnshire. May 22, 1933, No. 14689. [Class 94 (i).] In wrapping-machines of the kind described in British Specification 237,734, [Class 94 (i)], and in U.S.A. Specification 586,076, a control device is used in connection with the folder for laying the first flap. The mould wheel 10 carries a series of pockets 11 which are presented in turn to the sheet-feeding, filling, and folding devices, which operate simultaneously at adjacent positions. The wrapping material is fed by hooks 17 on a chain 16 to a position beneath a trigger 18 which forwards it on to a platform 21. The platform is moved downwards and a plunger 25 forces the wrapper into a mould 11. The positioning is such that the rear flap 27 is longer than the flap 28. A ledge 29 on the plunger bends the flap 28 downwards. A charge of tobacco is pressed down a shoot 14 by a plunger 15, during which operation the laterally projecting edges of the wrapper are suitably held. At the next position, a flaplifting device 32, for example, of the kind described in Specification 270,866, [Class 94 (i)], raises the flap 27 into position for engagement with a folder 31. A control member 35 is mounted on an arm 36 pivoted at 34 and moving with the arm 33 carrying the folder. The control member comprises two rows of pegs 37, 38 or a bar of L-shaped cross-section supported at its angle on the bar 35. In the position shown in Fig 1, the flap 27 is supported between the device 32 and the pegs 37. The arms 33 are now rotated into the position shown in Fig. 5 the folder 31 turning the flap down and the pegs 37, 38 controlling the free end. When the position shown in Fig. 6 is reached, the flap is pressed down flat, and the movable side 12 of the mould moves away to allow a finger 40 to turn the overhanging edge of the flap upon the side of the tobacco. The side 12 returns and the flap 28 is folded down by known means.
Patent GB-1080074-A (GB)
Title: Improvements in mechanical positioning systems
Inventor: STEWARD DOUGLAS EDWARD
IPC: F16H21/00
Filed: 1963-04-11
Abstract: 1,080,074. Linkwork. ELLIOTT BROS. (LONDON) Ltd. July 9, 1964 [April 11, 1963], No. 14710/63. Heading F2K. A mechanism for moving a platform 11 in accordance with any one or more of six degrees of freedom comprises three actuators each of which consists of pivoted arms 12, 13 which may be adjusted angularly with respect to a horizontal base 10 by hydraulic jacks 20, 21. In a modification, the lower end of each jack 21 is located on the lower pivotal axis 14 of the corresponding arm 12.
Patent GB-735393-A (GB)
Title: Improvements in or relating to sack-filling plant
IPC: B65B1/32
Filed: 1953-05-27
Abstract: 735,393. Filling sacks. BUHLER BROS. May 27, 1953 [May 27, 1952], No. 14784/53. Class 94 (1). A sack-filling machine comprises one or more filling stations at which are located a weighing hopper 18 for granular material having a discharge valve 17 actuated by a solenoid 16, a filling nozzle 5, a pair of grippers 14 which are arranged to embrace a sack on the nozzle and are mounted on a reciprocable member 2, and a continuouslyoperated endless delivery conveyer 1 for the filled sacks. At the commencement of a cycle of operations, the member 2 is in the right-hand position and the grippers are open. The operator then hangs a sack on the nozzle and operates a handle 20 controlling a valve 19 to admit compressed air to a cylinder 4 containing a piston 3 which is coupled to the member, thus causing the latter to move to the left to the position shown. At the end of this movement, abutments 6, 6<SP>1</SP> engage levers 7, 7<SP>1</SP> which actuate switches 8, 9 to energize a solenoid 10, operating a valve 11, and the solenoid 16, whereby compressed air is admitted behind a piston 12 to effect closure of the grippers and the valve 17 is opened to discharge a weighed quantity of material into the sack. One of a series of abutments 22 on the conveyer 1 then engages a lever A<SP>1</SP> to cause opening of a switch 24 and closure of a switch 23, whereby the solenoid 10 is de-energized to effect closure of the valve 11 and a solenoid 25 is energized to open an exhaust valve 26 so that the grippers are opened to allow the filled sack to fall on to the conveyer. In the meantime, the operator has released the handle 20, so that as soon as the grippers open the member 2 returns to its initial position. The abutments on the conveyer may also control the discharge of filled sacks from the nozzle of a second filling station B.
Patent GB-496552-A (GB)
Title: Tracks for toy vehicles
IPC: A63H18/02
Filed: 1937-05-28
Abstract: 496,552. Toys. MARX & CO., Ltd., L. May 28, 1937, No. 14814. Convention date, Sept. 24, 1936. [Class 132 (iii)] A double channel-section track for toy vehicles is composed of straight and curved sections, one of the sections 30 having interconnected pivoted switch tongues 32, 34 operated by a handle 38 to divert a vehicle from one track to the other. The track section 70 preceding the section 30 is provided with stop mechanism 72 operated by a handle 74. As shown in Fig. 7, the spindle 76 carrying the stopping arms 86 also carries '' stop " and " go '' signal vanes 78, 80. The switch tongues may be spring returned to mid-position. In a modified construction, Fig. 12, the switch, signal and stop mechanisms 108, 126 are simultaneously operated by the handle 116 through the link 114, gear sector 122 and pinion 120. In this construction the signal mechanism comprises three " go " signal vanes and one '' stop " signal vane.
Patent GB-712629-A (GB)
Title: Improvements in means for intermittently moving a toothed member step-by-step
IPC: F16H31/00
Filed: 1950-06-22
Abstract: 712,629. Intermittent toothed gearing. HOUGHTON, J. E. June 22, 1951 [June 22, 1950], No. 14850/51. Divided out of 712,607, [Group XXIII]. Class 80 (1) An intermittent drive-of a toothed member 9 such as a saw blade of the teeth setting mechanim described in Specification 712,607, [Group XXII] is obtained from a continuously rotating disc 3 by means of a helical rim portion 6a on a cam plate 6 secured to the disc engaging the toothed member.
Patent GB-1122554-A (GB)
Title: Supporting means for data recording-sensing heads
Inventor: CHURCH PETER DUDLEY
IPC: G11B5/60
Filed: 1966-04-05
Abstract: 1,122,554. Supporting transducer heads. ENGLISH ELECTRIC COMPUTERS Ltd. 5 April, 1967 [5 April, 1966], No. 15101/66. Heading G5R. A head 23 is carried by a support 12 having a surface 17 facing the record surface 16 and shaped to generate in the gap between the two surfaces, during relative movement of the head and record, a fluid pressure which opposes movement of the head support 12 towards the record surface 16, whereas the head support 12 is urged towards the record surface 16 by actuating means supplied with fluid under pressure derived from a position in the gap between the surfaces (as shown, by bellows 11 fed through an aperture 24), the forces exerted on the head support 12 being in balance when the head 23 is in the operative position. The surface 17 is formed with two transverse steps 18, 19 of different heights, the effect being that the head is retracted by the bellows 11 when the record slows down and is moved by air pressure to the operative position when the record speed is high enough. Displacement of the head in the direction of movement of the record may be resisted by a resilient link (61, Fig. 6, not shown) between the head support 12 and a fixed (though adjustable) carrier 10.
Patent GB-838529-A (GB)
Title: Improvements relating to rotary cylinder barrel engines
IPC: F01B17/00
Filed: 1958-05-12
Abstract: 838,529. Reciprocating pumps. NEW YORK AIR BRAKE CO. May 12; 1958 [Aug. 12, 1957], No. 15123/58. Class 102(1). [Also in Group XXIX] In a rotary cylinder block swash plate pump the block 27 engages a non-rotating freely mounted valve plate 23 having ports 37, 38 in the contacting face communicating with cylinder ports 32 in the block and with further .ports 47, 48 in the opposite side of the plate which engages the housing 21 ; the ports 47, 48 communicate with inlet and outlet ports 51, 49 in the housing, and are surrounded by "O"- rings 52 which engage the housing ; the rings are in turn surrounded by a relief groove 53. The face of the valve plate engaging the block has a pressure land 39 surrounding the ports 37, 38, annular leakage grooves 41, 42 and thrust pads 46. In a modification, additional ports in the valve face engaging the housing are surrounded by " O "-rings and are connected to the pressure port 48. The stated object of the invention is to enable a reduction in the mass of the valve plate and in the strength of the housing to be made and the Specification described in detail the relation between the pressure acting on the various port areas and the resultant deflection of the valve plate and housing. The pump is reversible. Specification 831,673 is referred to.
Patent GB-1426846-A (GB)
Title: Pumping apparatus
IPC: F04B1/02
Filed: 1974-04-05
Abstract: 1426846 Reciprocating pumps TORKRET GmbH 5 April 1974 [6 April 1973] 15159/74 Heading F1A A pump for pasty materials, e.g. concrete, comprises cylinders 1, 2 with pistons moved alternately on their delivery strokes by liquid e.g. water supplied to the cylinder ends 7 by a pump 11, e.g. of centrifugal type, via a control valve 10, heating elements 16, 18 being provided in a connection 15 between the pump inlet and outlet and/or or connection 17 to one or both cylinders. The pistons are connected by a rope arrangement 6 so that the delivery stroke of one effects the return stroke of the other. A distributing valve 4 controls communication between cylinders 1, 2, a supply hopper 3 and a delivery pipe 5, valves 4 and 10 being controlled by limit switches operated by the pistons.
Patent GB-1162203-A (GB)
Title: Production of Polyamic Acids and Polyimides
Inventor: VAUGHAN MERVYN FRANCIS
IPC: C08G73/10
Filed: 1966-04-06
Abstract: 1,162,203. Polyamide acids; polyimides. NATIONAL RESEARCH DEVELOPMENT CORP. 3 March, 1967 [6 April, 1966], No. 15292/66. Heading C3R. Polyamide acids are prepared by condensing a dianhydride of an aromatic tetracarboxylic acid and an aromatic diamine in a liquid organic medium in which the reactants are sufficiently soluble to undergo polymerization in the liquid phase, but in which the polyamide acid is sufficiently insoluble to precipitate from the reaction medium. The initial reaction medium may be a homogeneous soln. and the solvent may be selected from ethers, ketones, esters and nitriles; examples are: acetone, methyl ethyl ketone, cyclohexanone, dimethoxyethane, diethylene glycol dimethyl ether, tetrahydrofuran and dioxane. A minor amount, e.g. up to 10% by volume of a more polar solvent, e.g. dimethyl formamide may also be present. Examples of dianhydrides, which may be used in a molar excess of up to 10%, are pyromellitic dianhydride and 3,3<SP>1</SP>,4,4<SP>1</SP>-benzophenone tetracarboxylic dianhydride. The diamine may be added in successive amounts over a period until 90-95 mol per cent has been added and then reaction allowed to proceed for a comparable time before completing the addition. Examples of diamines are 4,4<SP>1</SP>-diaminodiphenyl ether, 4,4<SP>1</SP>-diaminodiphenyl methane, m-phenylene diamine and p-phenylene diamine. Fibres, films or other shaped objects may be obtained by converting the polyamide acid to a polyimide by thermal or chemical treatment.
Patent GB-476296-A (GB)
Title: Improvements in and relating to boiler and like furnaces
IPC: F23H3/02
Filed: 1936-06-02
Abstract: 476,296. Firebars; firebridges. HOLEHOUSE, T. R. June 2, 1936, No. 15307. [Class 51 (i)] In a furnace grate with means for supplying air to the fuel bed of the kind described in Specification 427,043, the Venturi - shaped passages are formed by a number of bars such as A, B, C, having tapered apertures A<1>, B\ C<1> and the air admitted to the Venturi-shaped passages at the rear passes to the fuel through passages A<3>, B<3>, C<3>. The upper faces of the bars A, B are inclined upwards to meet an inclined front portion of a bridge plate E. Longitudinal grooves are provided in the upper faces of the bars A, B and inclined front of the bridge plate.
Patent GB-682215-A (GB)
Title: Improvements in or relating to portable grinding or polishing machines
IPC: B24B27/00
Filed: 1950-06-20
Abstract: 682,215. Portable abrasive band machines. TAYLOR, H. June 20, 1951 [June 20, 1950], No. 15346/50. Class 60. [Also in Group XXVIII] The chassis 10, Fig. 3, of a swing frame grinder comprising an endless abrasive band 16 mounted on a motor driven pulley 17 and an idling pulley 15, Fig. 2, is channel sectioned and has its open front covered by a withdrawable plate 52 mounted on studs 53. The work contacting pulley 17 is of compressed canvas laminations and is driven by an electric motor 13 through a pulley 23, a tensioned belt 22.and a pulley 21 on the contact wheel shaft. Accurate tracking of the band 16 is maintained by manual adjustment of the inclination of the idling pulley axle 32, Fig. 5, relative to the general plane of the band run, and is effected by rotating a handwheel 46, a rod 44 and a screw shaft 40 to displace a block 38 and an arm 33 thereof projecting from a king-pin 31 carrying the axle 32 and being itself mounted on a fork 30. Band tension is varied by a hand lever 47, a push rod 48 and a lever 29 pivoted about a pin 28 and carrying the fork 30 and idling wheel axle 32. For universal movement the chassis 10 is suspended by a swivel eye 72 at one end of an L- shaped member 71, to the other end of which is pivoted one end of a stem projecting through the cover 52 and having its other end pivoted to the chassis about a longitudinal axis.
Patent GB-1133000-A (GB)
Title: Improvements in or relating to adhesive compositions
IPC: C09J131/04
Filed: 1966-04-06
Abstract: 1,133,000. Laminates. NATIONAL STARCH & CHEMICAL CORP. 6 April, 1966 [23 April, 1965], No. 15433/66. Heading B5N. [Also in Division C3] Laminates are prepared by bonding at least two laminµ with a dried adhesive film from an aqueous adhesive composition capable of yielding dry films which are characterized by their optimum water resistance, comprising a mixture of (a) 2,4,6-trimethylol phenol; (b) an aqueous emulsion of a vinyl acetate polymer; and (c) an acidic, metal salt selected from chromic nitrate, aluminium chloride, aluminium nitrate and chromic perchlorate. In the examples, wood, plastic and metal surfaces are bonded, including plywood veneers.
Patent GB-370714-A (GB)
Title: Safety device for use with gas taps
IPC: F16K17/20
Filed: 1931-05-26
Abstract: 370,714. Safety cut-off gas cocks. WEBER, A., 16, Am Spitz, Vienna. May 26, 1931, No. 15447. Convention date, May 24, 1930. [Class 135.] Valves actuated indirectly.-A safety cutoff valve for automatically stopping the supply of gas to cooking appliances when the gas tube becomes detached from the connecting nipple comprises a cock plug 3 provided with a spring-loaded operating- lever arm 4 fitted with a cross-arm 6 which rests on the detachable gas tube 7 in the open position of the cock, as shown. When the lever arm 4 is turned back to the closed position it is biased to that position by reason of the curved construction shown.
Patent GB-1382475-A (GB)
Title: Adsorbent carbon
IPC: C01B31/08
Filed: 1972-04-04
Abstract: 1382475 Absorbent carbon CALGON CORP 4 April 1972 [7 April 1971] 15455/72 Heading C1A A carbon absorbent having molecular sieve properties is obtained by agglomerating pulverized coal, or a char derived from naturally occurring carbonaceous material with pitch, crushing the agglomerates, activating the granular material so obtained by heating in a stream of air at 300-400‹ C. for a period of at least 120 mins. and subsequently calcining at 850‹ to 960‹ C. for a period of 5-20 mins. and recovering the product. The product is said to have a surface area measured by I 2  absorption of at least 450 m.<SP>2</SP>/gm. and an average CCl 4  number of no greater than 2À0. The material may be contacted with air during the activating step. The absorbent may be used for separating gaseous mixtures, e.g. of hydrocarbons, when only molecules of given size and shapes are taken up by the absorbent. The absorbed gases may subsequently be regenerated. Suitable chars are given as coconut char, carbonized coal, lignite chars, petroleum acid sludge, nut shells and wood.
Patent GB-561489-A (GB)
Title: Improvements relating to the production of sheets, panels and the like from waste wood products
IPC: B27N1/00
Filed: 1942-11-03
Abstract: 561,489. Composite wood blocks. BAYON, H. P. Nov. 3, 1942, No. 15493, [Class 145 (ii)] [Also in Group V] Waste wood is charged at a into a drier b and is conveyed by paddles d into a heated mixer f where it is sprayed with liquid phenolic impregnant such as cresylic acid, creosote or a tar acid. The mixture is then conveyed slowly forward by a worm n through a heated cylinder m and discharged on to a conveyer belt t where it is rolled into sheet form. The sheet is fed into travelling heated moulds y and is cut into lengths by a knife w. Covers y<1> are placed on the material in the moulds and gradually forced down by rollers' z. The mould assembles are then stacked in a press x, where they are pressed with heat. The mixture may contain also (a) artificial resin condensates, e.g. #-stage cresylic-aldehyde condensate, and natural resins; (b) flame resistant materials such as silicates, powdered slate and barium sulphate; and (c) granulated glass or asbestos powder which make the product heat-resistant and impart to it a non-wetting surface. Mineral matter may be spread over the surface of the sheets in the moulds before the covers y<1> are applied.
Patent GB-107150-A (GB)
Title: Improvements in Hinges for Casements and the like.
Inventor: SHAW GEORGE REGINALD
IPC: E05D3/06
Filed: 1916-11-01
Abstract: 107,150. Shaw, G. R. Nov. 1, 1916. Double hinges for casement windows, &c. Fig. 1 shows the hinge extended so as to allow of the passage of the hand for cleaning the outside of the window. Fig. 2 shows the hinge folded up, in which position the window may be opened for ventilating purposes, the hinge operating like a butt hinge. The separation of the arms K can only occur when the window has been turned through a right-angle from the closed position. When the window has been so turned, the flattened pin C can pass through a side groove D in the upper fixed knuckle and the groove D' in the knuckle G can pass off the flattened pin C' carried by the lower fixed knuckle. An arm E, pivoted on the middle axis and having a flattened extremity E' which is held between the leaves L of the hinges when in the closed position, keeps the arms K extended at right-angles to the shut window.
Patent GB-1575160-A (GB)
Title: Apparatus for and a method of printing a web of non-woven material
IPC: B41F15/08
Filed: 1978-04-20
Abstract: The device has a plurality of driven printing apparatuses with cylinder stencils or printing rollers or intaglio rollers. These each interact with an opposite support roller. Furthermore, a feed device is provided for the material to be printed, the material web (7) being supported directly by the support rollers (5) during operation. The support rollers are driven during operation by means of a slip drive (10, 11) at a speed which is greater by 0.5 to 1% than the circumferential speed of the stencils or printing rollers. The contact zones of the successive support rollers (5) with the associated printing apparatuses form the bending points of a guide path (A) of the material web to be printed. This path has a broken course which bends out convexly upwards. This device solves the problem of swelling of the fibres occurring as a result of absorbing moisture during the printing of fibrous material. The moisture arises from the colour paste or ink which is fed to the material in the printing devices. This swelling causes the web to increase in length with the risk of folds forming, which is now prevented. <IMAGE>