baber/WOPTO huggingface dataset:
Patent GB-1457015-A (GB)
Title: Process for producing remouldable panels
IPC: B29C48/50
Filed: 1974-03-20
Abstract: 1457015 Moulding filled thermoplastics ICMA SAN GIORGIO SRL INDUSTRIA COSTRUZIONE MACCHINE AFFINI and GOR APPLICAZIONI SPECIALI 20 March 1974 [23 March 1973] 12352/74 Heading B5A [Also in Division C3] Panels, for subsequent thermoforming, are made by cutting the panels from an extruded and calendered web which has been extruded from a mixture, in particulate form, comprising 40 to 60% by weight of thermoplastic polymer of softening point of at least 120 C., and 60 to 40% by weight of organic filler particles, e.g. used particles, the particles of the mixture at least partially comprising e.g. at least 20% by weight, aggregates of the polymer and wood particles. The panels have a thermal conductivity less than that of the polymer, and the subsequent thermoforming may comprise pressing to form an automotive vehicle dashboard. The polymer may comprise high density polyethylene, or isotatic polypropylene to which the examples relate as mixed with wood particles in specified weight percentages and particle sizes. Carbon black is incorporated in one of the examples. The particles may be mixed to effect the aggregation by agglomeration by the heat produced in high shear mixing, by the blades of a turber-mixer provided with a jacket for cooling medium circulation to maintain a preferred mixing temperature of 40 to 80 C. Alternatively, the aggregation may be effected by compaction and granulation without the addition of external heat, or by melt blending the polymer and wood particles by extrusion, followed by comminuting e.g. as by comminuting the scrap of panels produced by the invention, and the granules or comminuted material may have added thereto non-aggregated polymer and wood particles. The extrusion is preferably effected by a centrerotating twin screw extruder e.g. at 180-200C., from which the extruded web is delivered in a plastic condition to be rolled between the sequential nips of rollers 413, 412 and 411. The rolled web is then solidified by cooling in being drawn by rollers 441, from roller 411, and around guide roller 482 and over support rollers 431. Cutting into the panels may be effected prior to, or after, solidification of the web.
Patent GB-1359097-A (GB)
Title: Process for producing citric acid by fermentation
IPC: C12P7/48
Filed: 1972-03-16
Abstract: 1359097 Citric acid; preparation using Candida sp AJINOMOTO CO Inc 16 March 1972 [31 March 1971] 12446/72 Heading C2C Citric acid is made by aerobically culturing Candida fibrae in an aqueous medium containing a source of assimilable carbon.
Patent GB-662886-A (GB)
Title: Improvements in or relating to the manufacture of micaceous insulating materials
Inventor: KILPATRICK JAMES SIMPSON
IPC: H01B3/04
Filed: 1949-05-10
Abstract: 662,886. Mica compositions. MYCALEX CO., Ltd. March 29, 1950 [May 10, 1949], No. 12466/49. Class 70 A micaceous insulating material is obtained by mixing a glass frit with barium carbonate and phlogopite mica, preferably in equal proportions, forming the mixture into billets or blocks, subjecting them to a rise of temperature in a furnace and moulding and cooling the heat-treated material. The glass frit is preferably obtained by heating cryolite, barium, carbonate, potassium carbonate, soda ash and boric acid according to the method described in Specification 532,824, alternatively the frit may be prepared from the barium carbonate, boric acid, aluminium oxide and phlogopite mica. The billets may be rendered more coherent by adding methyl cellulose or dextrine and may then be dried at 850‹ C. and then transferred to an injection moulding, apparatus as described in Specification 601,772 and moulded at 300-350‹ C. Up to 10 per cent of the barium carbonate may be replaced by lead oxide.
Patent GB-661799-A (GB)
Title: Silvering incandescent bulbs of the reflecting type
IPC: H01K3/00
Filed: 1949-05-10
Abstract: 661,799. Coating with silver. WABASH CORPORATION. May 10, 1949. [May 11, 1948] No. 12493/49. Class 82(ii) [Also in Group XI] The inner surface of a glass lamp bulb is silvered by flushing on to the part to be thus coated a mixture of a silvering solution and a reducing solution and at the same time either allowing the mixture to escape from the bulb or exhausting it therefrom. Preferably the mixture is sprayed on to the inner surface while the bulb is rotated about its axis, an effective result being obtained by introducing the silvering solution and reducing solution in separate streams and causing them to commingle immediately before reaching the glass surface. The bulb may be mounted with its open or neck end lowermost and frictionally engaged between rotating rollers on shafts parallel with the bulb axis, the silvering and reducing solutions being then introduced through separate tubes with offset inner ends which direct the solutions laterally towards the part to be silvered. The solutions may be in the form of an atomised spray or an unatomised jet. Fig. 2 shows a modification wherein the two solutions are introduced through tubes 24, 26, and caused to impinge against a deflector plate 22 which is located temporarily within the bulb and spins about an axial support, the plate being provided with vanes 23 which deflect the commingled solutions radially outward. Fig. 3 shows a further modification wherein a bulb 30 held with the dome lowermost is revolved about its axis while silvering and reducing solutions are introduced through tubes 34, 36 respectively, the level of the liquid within the bulb being regulated and maintained at level 40 by a suction tube 38 operating continuously. Upon completion of the silvering operation the inside of the bulb is washed with water which is introduced through one tube and removed through a suction tube similar to tube 38. The silvering solution may comprise an ammoniacal solution, e.g., silver nitrate, ammonia, and sodium hydroxide, in the approximate proportion of 10 : 5 : 3.5, the concentration of the silver nitrate ranging from 5 to 15 grams per litre. Various reducing solutions may be used, preferably one containing a reducing sugar such as invert sugar or dextrose, with another organic reducing compound which may be either formaldehyde or a nitroalcohol from the group consisting of 2-nitro-2-ethyl-propane-1 : 3-diol, 2-nitro-2-methyl-propane-1 : 3-diol, and 2-nitro-2-methyl-propane-1-ol. One example comprises: -invert sugar or dextrose, 6 to 38 grams per litre; formaldehyde (37 per cent), 8 to 26.5 ml. per litre; mercuric cyanide, 0 to 16 mg. per litre; potassium cyanide, 0 to 10 mg. per litre. An example including a nitroalcohol is given in the Specification.
Patent GB-564676-A (GB)
Title: Electrosensitive recording blank
IPC: H04N1/23
Filed: 1943-08-04
Abstract: 564,676. Stencils. CREED & CO., Ltd. Aug. 4, 1943, No. 12573. Convention date, Aug. 4, 1942. Drawings to Specification. [Class 100 (ii)] [Also in Groups VIII and XL] A sheet adapted to be converted into a stencil by the passage therethrough of electric currents, comprises a fibrous base of open porous character, such as Yoshino paper, impregnated with a plastic composition adapted to be displaced by the current to expose the base and having dispersed therein an electrically conducting material, e.g. carbon or metal powder. The impregnating compound may be a cellulose derivative such as cellulose acetate or cellulose nitrate, waxy materials such as paraffin or diglycol stearate, natural or synthetic resins or gums, such as shellac, rosin, ester gum, cumar, or dammar, or water swelling colloids such as starch, gelatin, pectin or gum tragacanth, with the addition of plasticisers to render the compound plastic at ordinary room temperatures. Suitable plasticisers are triphenyl phosphate, triacetin, castor oil, tricresyl phosphate, dibutyl phthalate, dibutyl tartrate, and butyl lactate. The sheet may be used in the receiver of a copying telegraph apparatus, or may be laid on a flat metal plate and written upon by an electric pencil. Specification 417,958 and U.S.A. Specifications 2,251,742, 2,229,091, 2,158,391, 2,153,858, 1,795,461 and 1,526,982 are referred to.
Patent GB-714303-A (GB)
Title: Improvements in or relating to appliances for cutting and gathering leaves, grasses,herbs and so forth
IPC: A01D34/08
Filed: 1952-05-19
Abstract: 714,303. Leaf-cutting appliances. TARPEN ENGINEERING CO., Ltd., ROSS, J. W., and FAY, B. D. May 6, 1953 [May 19, 1952], No. 12576/52. Addition to 618,339 Class 6 (2) The appliance for cutting leaves as claimed in the parent Specification is modified by the addition of a skid 1 situated at each end of the cutters so as to project forwardly. As shown, the skid is secured to the machine by means of bolts and a tie 6 and is formed of angle iron. In a modification, the skid is formed of a flat plate with curved ends. The skid may be applied to an appliance as described in Specification 679,228.
Patent GB-249359-A (GB)
Title: An improved device for perforating paper
IPC: B26F1/36
Filed: 1925-05-14
Abstract: 249,359. Squire, P. C. May 14, 1925. Reciprocating-punch machines.-In a handactuated machine for punching documents across a corner, a pivoted T-shaped lever is depressed on one side of the vertical to operate two spring- retracted punches h, and on the other side of the vertical to operate a single punch g. Guides e, c, d, d are arranged symmetrically relatively to the punches to position the sheet. A removable bottom q forms a receptacle for the punchings.
Patent GB-978338-A (GB)
Title: Improvements in or relating to machines for removing and replacing covers over apertures
IPC: B66C1/66
Filed: 1962-06-19
Abstract: 978,338. Controlling clutches. ALLIED CHEMICAL CORPORATION. June 19, 1962 [July 17, 1961], No. 12731/64. Divided out of 978,335. Heading F2L. [Also in Division C5] In a machine for removing covers from and replacing them upon their holes, e.g. in coke ovens, rotary motion is transmitted from a stub shaft 56 to a sprocket 70 by means of clutch parts 57a, 57b respectively on the shaft and sprocket. The shaft 56 is periodically rotated by a horizontally reciprocated member 110, seen in section here, and described in detail in Specification 978,336, through a sprocket 137, and the shaft 56 is periodically vertically reciprocated in synchronism with the rotary movement, by cam surfaces on the member 110. Each clutch part 57a, 57b has projections which interengage with a sharp impact, which is transmitted to a coverremoving mechanism 36, when the shaft 56 is lowered.
Patent GB-594127-A (GB)
Title: Improvements in methods of rolling threads
IPC: B21H3/06
Filed: 1944-07-04
Abstract: 594,127. Rolling screwthreads. EATON MANUFACTURING CO. July 4, 1944, No. 12739. Convention date, June 4, 1943. [Class 83 (iv)] In rolling screw-threads between flat dies, these are arranged to engage the blank initially at opposite ends of a diameter and to embed the dies to less than the full depth required to obviate the risk of slip and so ensure that a correct thread is initiated, after which the dies are gradually advanced to produce the complete thread during continued rolling. Pressure between the dies is relieved prior to the end of the stroke to prevent the heels of the dies from marking the work. The blank is located, prior to rolling, against adjustable stop screws 104, carried by the die 20 or its holder, by a pusher 100. The die 20 is then traversed by a piston 32 at a constant speed throughout the stroke, this speed being adjustable by a throttle valve 37. The valve 38 for reversing the movement of the piston 32 is controlled by a dog rod 44 actuated by an abutment 50 traversed with the die. The other die 22 is fixed against longitudinal movement, but is movable transversely by a piston 60. On starting, springs 70 hold the die in its retracted position as determined by a stop screw 78. The valve 80 for admitting fluid to advance the piston 60 is operated by a solenoid 89 controlled by a switch 92 actuated by the movement of the slide 26 to cause the required gradual embedding of the dies followed by release just prior to the end of the rolling strokes. Means, not shown, are provided to prevent the switch from being operative to close the dies during the return stroke. A stop nut 66 limits the closing movement. In setting up the machine, threads are part rolled on a blank so that the threads, formed by one die do not quite meet those formed by the other. The blank is then placed in an optical projector which is adjusted so that a hair-line 122, Fig. 6, passes through the centre of a groove on one side of the blank and if necessary the blank is shifted axially by a micrometer screw to cause the thread on the other side to be correctly located with reference to the line. The amount of this movement gives directly the amount necessary to move one of the dies axially of the blank. The tops of the threads on the leading ends of the dies may be slightly bevelled.
Patent GB-528148-A (GB)
Title: Improvements in and relating to valves
IPC: A62C25/00
Filed: 1939-04-28
Abstract: 528,148. Valves. NICHOLSON, T. April 28, 1939, No. 12769. [Class 135] A valve device automatically actuated by unreeling a hose from a hose reel is provided with a valve seating which is removable from the valve casing without dismounting the reel. In the form shown in the Figure the valve casing a is rotatably mounted in a hollow reel-supporting bracket or arm g and externally has arms b which support a hose-reel comprising side plates e and distance pieces d held together by pins c. Internally the casing is provided with a nutmember supported by spider arms s and engaging a screwed actuating spindle held against rotation by a square section socket t<SP>1</SP> engaging a post t secured to the member g. The valve member w has a short stem w<SP>1</SP> with a flanged head w<SP>2</SP> held with lost-motion in a cavity in the actuating spindle by a screwed cap x. The cavity also houses a spring which permits a limited movement of the reel after the valve has seated. The valve has a rubber face which co-operates with a seat formed on a detachable outlet branch j connected to the hose pipe. If desired the seat may be formed on a detachable ring and the outlet branch secured to the ring. According to the Provisional Specification the actuating spindle may have a square part engaging a corresponding hole in a bridge secured to the member g.
Patent GB-1455037-A (GB)
Title: Constant velocity ratio universal joint
IPC: F16D3/226
Filed: 1974-03-22
Abstract: 1455037 Universal joints NISSAN MOTOR CO Ltd 22 March 1974 [29 March 1973] 12880/74 Heading F2U A constant-velocity-ratio universal joint between shafts 11 and 16 comprises balls 13 in part-helical grooves 12 and 14 of outer and inner races as shown, the helices of which grooves 12 are portions being of opposite hand to those of which grooves 14 are portions and the balls 13 positioning themselves at the intersections of the grooves as shown in Fig. 3. The balls 13 are all in a plane 25, the angle # between this plane and the normal to the axis 26 of shaft 11 (or the axis 27 of shaft 16) being half the tilt angle α between the shaft axes. The balls 13 are in a cage 19 which bears against the part-spherical outer and inner races between the grooves 12, 14.
Patent GB-961842-A (GB)
Title: Improvements in or relating to aircraft having gas turbine jet propulsion engines
Inventor: MARCHANT FRANCIS CHARLES IVOR
IPC: B64C29/00
Filed: 1960-12-21
Abstract: 961,842. Jet propelled aircraft. BRISTOL SIDDELEY ENGINES Ltd., and S.I.A.I. MARCHETTI S.p.A. Dec. 20, 1961 [Dec. 21, 1960], No. 12892/63. Divided out of 961,841. Drawings to Specification. Heading B7G. The subject-matter is the same as that of Specification 961,841, which is referred to, but the claims are directed to different features of the arrangement of nozzles supplied by a pair of gas turbine engines so as to reduce asymmetry of thrust should one engine fail. Specifications 881,662 and 910,693 also are referred to.
Patent GB-443443-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B7/00
Filed: 1934-05-28
Abstract: 443,443. Deep - well pumps. GEE, W. J., 14, Queen Victoria Street, London. May 28, 1934, Nos. 12900, 19057, and 30663. [Class 102 (i)] A deep - well pump comprises a number of pistons 21, mounted on a common rod 28, the stroke of the pump being less than the diameter of the pistons, Spring washers may be interposed between the pistons and the spacing sleeves 23 for cushioning purposes. The pistons operate in separate compartments, formed in a bore in a cylinder body 4 by discs 18, 19, 20 spaced by liners 9. The body 4 is contained in a casing 1 and divides the latter into an inlet chamber 10 and a discharge chamber 11. The pistons are double-acting and the inlet ports 24, 25 are controlled by a slide valve 30 and the discharge ports 26, 27 by a slide valve 33. The piston-rod 28 is operated by a double eccentric 41 with a forked strap 42 having upward extensions 48 carrying a pin 47. A three-armed lever, loose on the driving shaft 36, has a vertical arm 44, sliding through a hole in the pin 47, and horizontal arms 45, which operate the slide valves 30, 33. In a modification the slide valves are replaced by automatic lift valves, the suction valves being located at the bottom of the chambers 10, 11 and the discharge valves at the top. In a further modification the cylinder body has two bores, each comprising a number of piston compartments. The piston-rods are operated by eccentrics on an over-head shaft and a rotary distributing valve between the cylinder bores is driven by bevel gearing.
Patent GB-1172724-A (GB)
Title: Improved Process for the Separation of Hydrocarbons.
Inventor: BROUGHTON DONALD BEDDOES
IPC: B28B7/30
Filed: 1967-03-20
Abstract: 1,172,724. Separating hydrocarbons. UNIVERSAL OIL PRODUCTS CO. 20 March, 1967, No. 12824/67. Heading B1L. [Also in Division C5] In a process for the continuous gaseous or liquid phase separation from a feed mixture of hydrocarbons of at least one sorbate component and at least one raffinate component by a selective sorbent, wherein a fluid stream is continuously circulated through an elongated mass of solid particles of said selective sorbent comprising at least four zones, said feed mixture is introduced into said circulating stream and the resulting stream is contacted in a sorption zone with sorbent which retains sorbate component whilst the raffinate component occupies the void spaces between particles of sorbent, a stream comprising raffinate component is withdrawn from the mass of sorbent at a point downstream from the point of introduction of said feed mixture, a portion of said raffinate is passed as secondary reflux into the secondary rectification zone comprising the section of sorbent immediately downstream from the point of withdrawal of raffinate, a desorbent having a boiling point different from that of said sorbate component is introduced into said circulating stream at a point downstream from the point of withdrawal of raffinate, resulting mixed stream is contacted with spent sorbent in a desorption zone thereby displacing sorbate component therefrom, a stream comprising sorbate component is withdrawn from the mass of sorbent at a point downstream from the point of introduction of desorbent, a portion of said sorbate is passed as primary reflux into the primary rectification zone comprising the section of sorbent immediately downstream from the point of withdrawal of sorbate component, and the points of introduction of feed mixture and desorbent and of withdrawal of sorbate and raffinate are periodically, equally and simultaneously shifted in a downstream direction relative to said mass of sorbent particles, so as to produce a simulated countercurrent flow system, optimum purity of raffinate component is obtained by adjusting said primary reflux to an amount of from 80 vol % to less than 100 vol % of the volume of void space in the primary rectification zone, and adjusting said secondary reflux to an amount of from greater than 100 to 140 vol % of the volume of void space in the secondary rectification zone. Suitable sorbents are molecular sieves, particularly metal alumino-silicates of the zeolite type, silica gel, activated charcoal and activated alumina. The process may be used for the separation of straight-chain hydrocarbons from branched-chain or cyclic hydrocarbons; and of olefinic, diolefinic and aromatic hydrocarbons from paraffins and naphthenes. A specific separation referred to is of branched-chain paraffins of high octane number (as pure raffinate) from paraffin mixtures of gasoline boiling range, e.g. a hexane mixture.
Patent GB-1429947-A (GB)
Title: Resilient drive couplings
IPC: F02M39/00
Filed: 1973-03-19
Abstract: 1429947 Resilient shaft couplings ROBERT BOSCH GmbH 19 March 1973 [17 March 1972] 13012/73 Heading F2U A resilient shaft coupling (e.g. in a drive of a speed governor in an injection pump) comprises a shaft 2 with two recesses 8 each facing a recess 7 in a bore of another member 3 (e.g. a gearwheel) and housing a resilient element 9 whose section normal to the shaft axis comprises a rectangle with rounded corners, a depression in each side, and its long axis lying circumferentially of the shaft, either the shaft or bore having a further recess 10 in which can move a projection 11 (e.g. a pin) on the other, when the elements 9 are being stressed.
Patent GB-680671-A (GB)
Title: Improvements relating to filter press cocks
IPC: F16K27/06
Filed: 1950-05-24
Abstract: 680,671. Filter-presses. CIBA Ltd. May 24, 1950 [June 3, 1949],.No. 13058/50. Class 46 [Also in Group XXIX] A cock for a filter press element comprises a tapered spigot 14 driven into a complementary bore in the press frame 10 and having passages 16, 17, and a conical plug 15 with a groove 18 and a bore 19. With the plug positioned as shown filtrate flows from the press through the passage 16, groove 18, passage 17 and a bore 13 to a discharge passage 11 in the press frame. By connecting the bore 19 to the passage 17 a sample of filtrate may be taken, and by disconnecting both groove and bore from the passages the flow of filtrate is stopped.
Patent GB-131515-A (GB)
IPC: B60T8/18
Abstract: 131,515. Taite, J. C., (Bell, A. M.). Nov. 7, 1918. Fluid-pressure.-Relates to systems in which a supplementary brake cylinder is provided for use when the vehicle is loaded, as described in Specification 118,426, and consists in the use of compressed air with a control valve, in which a manually-operated cam 25 is moved, when a vehicle is loaded, to set the piston 11 so as to connect the train pipe 15 with the pipe 16 leading to the triple-valve of the supplementary air-reservoir and brake cylinder, a shoulder 35 retaining the cam in this position. When the vehicle is coupled up, pressure flows through the pipes 15, 16 to the reservoir and thence to a pipe 22 and chamber 19, so that the piston 11 is moved and frees the shoulder 35, a shoulder 36 then engaging the slide 26 to retain the piston 11 and cam 25, as shown in Fig. 3. When the vehicle is detached for unloading, reduction of pressure in the train pipe and so in chamber 19 releases the slide 26, enabling the cam to return to its initial position