baber/WOPTO huggingface dataset:
Patent GB-1403499-A (GB)
Title: Belt conveyer
IPC: B65G15/42
Filed: 1973-03-13
Abstract: 1403499 Strip fastenings KANEBO Ltd 13 March 1973 [17 March 1972] 12012/73 Heading E2S [Also in Division B8] The facing surfaces of opposed conveyer belts 1, 2 are provided with male and female elements 14a, 14b adapted to cooperate as a hook and loop fabric type fastener.
Patent GB-918187-A (GB)
Title: Improvements in or relating to the production of membrane filters
IPC: C08J9/30
Filed: 1960-04-05
Abstract: Membrane filters are produced by dissolving polyvinyl chloride or chlorinated polyvinyl chloride in a mixture of liquids, one of which is a true solvent for the polymer and the other is a pore-forming liquid; forming the resultant solution into a layer by pouring it on to a flat surface; and removing the liquids from the layer so formed, either by evaporation or diffusion.  Suitable true solvents are ethyl acetate, acetone, ethylene chloride, tetralin and tetrahydrofuran. Specified pore-forming liquids are the series of alcohols from methyl to amyl, especially butyl alcohol, as well as glycerine and ethylene glycol-these may be used in conjunction with small amounts of water.ALSO:Membrane filters are produced by dissolving polyvinyl chloride or chlorinated polyvinyl chloride in a mixture of liquids, one of which is a true solvent for the polymer and the other is a pore-forming liquid; forming the resultant solution into a layer by poruing it on to a flat surface; and removing the liquids from the layer so formed, either by evaporation or diffusion.  Suitable true solvents are ethyl acetate, acetone, ethylene chloride, tetralin and tetrahydrofuran.  Specified pore-forming liquids are butyl alcohol (the series of alcohols from methyl to amyl alcohol is mentioned) glycerine and ethylene glycol, which may be used in conjunction with small amounts of water.
Patent GB-666599-A (GB)
Title: Improving stability of petroleum waxes
IPC: C10G73/42
Filed: 1949-05-06
Abstract: <PICT:0666599/III/1> Petroleum wax having improved stability to heat and light is prepared by contacting the wax with a naturally occurring aluminium oxide, for example bauxite, at a temperature of 575-700 DEG F.  Further treatment with a similar contact material at a temperature below 200 DEG F. may follow.  As shown in Fig. 1, a waxy distillate is introduced into pressing zone 1 by line 2 and the slack wax, containing about 15-40 per cent of oil, removed by line 4 and passed to distillation zone 5.  Lower boiling oily fractions are removed by line 6 and the topped slack wax containing about 15-35 percent oil removed by line 7 to sweating zone 8 from which crude scale wax containing less than 10 per cent of oil is introduced into bauxite treating zone 10, which is preferably maintained at a temperature of 600-700 DEG F.  The treated wax is then passed to a secondary sweating zone 12 in which the oil content of the wax is reduced to below about 0.5 per cent; the wax fraction withdrawn by line B is passed to a secondary bauxite zone 14 maintained below 200 DEG F., preferably at 140-180 DEG F., from which the refined wax is withdrawn by line 15.  Other forms of the process are described as in Fig. 2, (not shown), in which no intermediate operation is used between the two bauxite treatments, and in Figs. 3 and 4, (not shown), in which the crude scale wax is secured by solvent dewaxing operations.  The waxes may be separated into fractions by sweating either before or after the first bauxite treatment, or alternatively may be fractionated by distillation between the two bauxite treatments.
Patent GB-639850-A (GB)
Title: Improvements in or relating to supersonic transmitting apparatus
IPC: G01N29/28
Filed: 1947-05-06
Abstract: 639,850. Supersonic inspection devices. SPERRY PRODUCTS, Inc. May 6, 1947, No. 12205. Convention date, May 21, 1946. [Class 118 (ii)] [Also in Group XXXIX] In supersonic testing apparatus the piezoelectric crystal 11 is coupled to the object 10 by a film 20, 21 of oil or other liquid and an interposed strip 15 of tin or other foil. The coupling may include several foils with interposed oil films.
Patent GB-847250-A (GB)
Title: Improvements in and relating to fastener devices for mounting in a hole in a support
Inventor: PARKIN LESLIE
IPC: F16B12/24
Filed: 1957-04-15
Abstract: 847,250. Spring clips; locking bolt-like pins; dowelling. CARR FASTENER CO. Ltd. March 28, 1958 [April 15, 1957], No. 12308/57. Classes 44, 89(1) and 89(2). A fastener-device for mounting in a hole 8 in a support 7 for engagement by a stud 10, includes a fastener-member comprising a hollow-body 1 of sheetmetal having means 3 at one end defining a stud-receiving-opening, the edges of which are shaped to receive and engage the stud, the body having at its other-end a series of resilient-fingers 6 extending axiallyoutwardly and inclined laterally-outwardly of the body, the device also including a tubular-insert 9 for insertion into the body of the fastenermember when the member is positioned in the hole in the support, to force the fingers into engagement with the wall of the hole. The means 3 consists of an inwardly-drawn-neck of reduceddiameter, and three slots are cut into the neck extending axially into an adjacent-part of the wall 2 of the body, so that the neck 3 has three portions capable of limited relative radialmovement. These portions co-operate to define the stud-receiving-opening, which has a diameter slightly less than that of the stud 10. The otherend of the body is formed with a series of slots 5 so as to provide the fingers 6, the free-ends of which are directed towards the outer-end of the body 1. The insert 9 is a sleeve having a diameter such that it makes a force-fit into the body to expand it radially-outwardly; the inner-end of the sleeve terminates short of the neck 3 and serves as a guide for the stud 10. Two such fastenerdevices can be used, one in each of two members which are to be secured together to grip oppositeends of a dowel-rod 10.
Patent GB-857403-A (GB)
Title: Improvements in or relating to a holdall or other portable receptacle
Inventor: DUGAN-CHAPMAN CHARLES
IPC: A45C3/00
Filed: 1958-04-18
Abstract: 857,403. Holdalls. STEWART PLASTICS Ltd. Feb. 18, 1959 [April 18, 1958], No. 12322/58. Class 133. A holdall comprises two flexible dished portions 1 moulded e.g of polythene and securec together along the overlapping margins 4 of three sides by rivets 5 An opening 3 is defined by the relatively narrow wall parts 2, and handles 6 are secured by attachment straps 7, while the margin 4 is rebated along one half of each dished portion 1 so that the inner surfaces are flush.
Patent GB-514004-A (GB)
Title: Improvements in and relating to electric valve circuits
IPC: B23K11/24
Filed: 1938-04-25
Abstract: 514,004. Switching systems for consumptionapparatus. BRITISH THOMSON-HOUSTON CO., Ltd. April 25, 1938, No. 12357. Convention date, April 24, 1937. [Class 38 (iv)] To enable current to flow to load 3 for a predetermined number of half cycles, the supply is controlled through push-pull valves 4, 5 fed from windings of trarsformer 11, the transformer having a third winding which is used to assure that the valve is conductive during each half cycle. The timing circuit 46 is described in Specification 416,374. When switch 61 is closed (condenser 51 being discharged) grid 39 of discharge device 36 becomes positive with respect to the cathode by an amount depending on the position of contact 49. Valve 36 becomes conductive and a number of pulses of peaked waveform, supplied by saturable transformer 20, pass through transformer 11. A voltage is thus generated in winding 16 which is applied to grid 39 to assure that device 36 is rendered conductive during such half cycle. Resistance 45 impresses a negative transient potential on anode 37 and so renders the valve non-conducting at the end of each half cycle of conduction. Valves 4, 5 are rendered conductive during the conducting period of valve 36. As condenser 51 charges through resistance 52 it will eventually reach a value which as it is applied to grid 39 blocks valve 36, the number of half cycles of conduction of valve 36 being determined by the setting of 49 and 52. Condenser 51 continues to charge and after a further time or number of non-conductive half cycles of the voltage of transformer 20, dependent on the setting of 50 and 52, valve 53 is rendered conductive by a voltage of peaked wave form over transformer 58 so that condenser 51 discharges and the cycle is repeated. The instant during a cycle at which valve 53 conducts, and the circuit to load 3 is switched on, is determined and adjustable by phase shifting device 60, whilst device 66 determines the point in each cycle at which valve 36 conducts and so controls the amount of energy transferred to load 3.
Patent GB-1376287-A (GB)
Title: Fibre optic illuminator assemblies
IPC: B60Q3/04
Filed: 1973-03-15
Abstract: 1376287 Light guides GENERAL MOTORS CORP 15 March 1973 [27 March 1972] 12423/73 Heading G2J A fibre optic illuminator 20 e.g. for attaching to the dashboard (8) of a vehicle, see Fig. 1 (not shown), comprises a sheathed bundle 16 of coated glass or transparent plastics filaments 18, part of the sheath being removed to expose the filaments, and a support, e.g. a reflective backing plate (24), Fig. 3 (not shown), for the exposed filaments, which are spread, preferably in a single layer, and are treated, e.g. by being abraded or hot stamped, to break up the coating to allow emission of light outwardly from the exposed filaments. A frame 26 may be secured to the plate (24).
Patent GB-1378152-A (GB)
Title: Rigid paperboard container
IPC: B65B9/20
Filed: 1971-04-30
Abstract: 1378152 Wrapping boxes and lids AGFAGEVAERT 19 April 1972 [30 April 1971] 12439/71 Heading B5D [Also in Division B8] A paperboard box is covered with heat shrink material and a portion of the heat shrink material which extends over the open end of the box, is pushed into the box before, during or after the shrinking operation. The pushed -in portion is glued or heat sealed to an inner face or faces of the box or clamped against the box wall or walls by a tubular insert 12. A lid may be similarly covered and in one embodiment the heat shrink material (36, Fig. 5) is secured to the inner face of the top wall of the lid (11, Fig. 5) by gluing a paperboard cover (37, Fig. 5) over the ends of the pushed-in portion of the covering material. The covering operation may be effected by enclosing the box in a bag of heat shrink material or by wrapping (Fig. 3) it using one or two webs of such material. The heat shrink material may be films of polyester, polyethylene, polypropylene, P.V.C. polystyrene or polyvinylidene chloride. The box may be cuboidal, cylindrical, oval, heart or triangular shaped. The opening may be a small circular opening in a wall of the box and a hard plastics cylindrical insert which is closable by a snap-fit or screw-on cap, is inserted into the opening.
Patent GB-998742-A (GB)
Title: Improvements in or relating to telescopic shock absorbers
IPC: F16F9/48
Filed: 1963-03-29
Abstract: 998,742. Hydraulic shock-absorbers. AUTOMOBILOVE ZAVODY LETNANY, NARODNI PODNIK. March 29, 1963 [March 29, 1962], No. 12516/63. Heading F2S. A telescopic hydraulic shock-absorber provided with hydraulic limiting stops at both ends includes a piston which is formed of two parts 20, 21 providing a chamber 14 for an annular relief valve 51 and which is slidable within a working cylinder 1 closed at each end by a more robust cylindrical stop extension 2, 10 or 4, 10 of smaller diameter and mounted within an outer cylindrical jacket 31 to form an annular fluid space 32 communicating at its upper end through openings 40B in the stop extension 4, 10 with a reservoir 37 and, through a base valve assembly 3, 60, with a compression chamber 18 below the piston 20, 21. The atop extensions 2, 10, and 4, 10 co-operate with corresponding braking-stop rings 7, 7 which are mounted, for limited axial movement, on supporting extensions 9, 8 of the piston 20, 21: An intermediate full-size portion 12 of the piston carries a seal 13 and is located between reduced end portions 24 which are substantially of the same diameter as the stop rings 7, 7 for introduction into the stop extensions 2, 10 and 4, 10. Each stop ring, split to form a closable axial slot 27, is urged by a spring 30, away from the corresponding flat seating surface of the piston 20, 21, into engagement with the enlarged head 28 of the corresponding supporting extension 9 or 8, through-flow passages being provided through bores 29 in the supporting extensions and openings 48 between the inner ends of the rings 7, 7 and the corresponding seating surfaces of the piston 20, 21. The valve plate 51, having small bores 52, controls passages 50, 22, 49 through the lower piston port 20. The upper end of the working cylinder space 17 communicates with the annular space 32 through a cylinder wall. opening 41 which is shielded by a deflector 57 and which has as wedge-shaped slot 55 extending from its upper edge. During operation, when a stop ring 7 commences to enter the cylindrical portion 10 of a stop extension 2, 10 or 4, 10 bevelled surfaces 23, 11 respectively on the ring 7 and stop extension co-operate so that the ring becomes radially compressed to progressively close the slot 27 at the same time the ring is gradually urged down on to the corresponding flat seating surface of the piston 20, 21 to progressively close the opening 48 and the bores 29 so that asubstantial full hydraulic lock is provided. A slight leakage past a piston-rod seal 39, 54 occurs in the upper stop a corresponding leakage in the lower stop being by way of small bores 52B in a foot valve plate 3. The reservoir 37 is formed by a tube 38 which spaces a closure 34, for the upper end of the outer casing 31, from the upper stop extension 4, 10 the closure having a filling plug 36 and a drain plug 47 being provided in a lower closure 33.
Patent GB-1216048-A (GB)
Title: Ketones derived from thuyopsene
IPC: C11B9/00
Filed: 1969-03-10
Abstract: 1,216,048. Ketones from thuyopsene. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH and F. H. FIRMENICH, [trading as FIRMENICH & CIE]. 10 March, 1969 [8 March, 1968; 4 March, 1969], No. 12597/69. Heading C2C. [Also in Division A5] The invention comprises known as thuyopsanone, and its stereoisomers. It is prepared by the oxidation of thuyopsene by (a) peracids e.g. peracetic, perbenzoic acids; (b) oxidized derivatives of transition elements e.g. CrO 2 Cl 2 , KMnO 4 ; (c) an oxidising gas consisting entirely or partly of oxygen, in the presence of actinic irradiation and an energytransfer sensitizer e.g. eosin, porphyrin, Rose- Bengale. A mixture of stereoisomers can be separated by gas chromatography or by fractional distillation. #<SP>2</SP>(<SP>12</SP>) - Thuyopsen - 3 - ol is prepared by the oxidation of thuyopsene using method (c) above. (+) - 3 - Thuyopsanol and (-) - 3 - neoisothuyopsanol are prepared by hydrogenating #<SP>2</SP>(<SP>12</SP>)-thuyopsen-3-ol. A glycol monoacetate of the formula is prepared by the oxidation of thuyopsene by peracetic acid; hydrolysis yields the corresponding glycol. The above alcohol intermediates undergo acid-catalysed isomerization to yield thuyopsanone and are also stated to be novel. Thuyopsanone is used in perfume compositions.
Patent GB-332577-A (GB)
Title: A process for treating materials
IPC: A23G9/20
Filed: 1929-04-23
Abstract: 332,577. Vogt, C. W., and Vogt Instant Freezers, Inc. April 23, 1929. Continuous-discharge apparatus with stationary containers.- A process for the continuous production of homogeneous materials such as ice cream, vegetable oils &c. consists in passing the material through a chamber and beating it while subjected to a temperature-changing medium to change its physical character, the degree of such change being controlled by varying the supply of the material; a gaseous fluid may also be mixed with the material. The machine shown consists of a series of chambers, fitted with rotary stirrers, through which the material, together with a gaseous fluid, is forced, the chambers being jacketed for the circulation of brine &c. for cooling, and means being provided whereby the circulation of the cooling medium and the supply of the material are controlled by the stiffness of the material in the chambers. The material is supplied from either of two containers 15, 16, Fig. 1, through a filter 19 to a pump 21, which forces it through a supply pipe 23, to the cooling chambers 10, which discharge through a pipe 24. Air or carbon dioxide is supplied by a pump 26 through a control valve 27, and the jackets of the chambers are supplied with water through pipes 11, 12 and brine through pipes 13, 14, the pipe 13 being fitted with a valve 40 automatically controlled by means responsive to the stiffness of the material. The supply pipe 23 has a bye-pass 28 having a valve 29 which closes on an increase of pressure due to an increase in the stiffness thus forcing the material through the supply pipe 23. The cooling chambers 30, Fig. 2, are fitted with jackets 45 in the form of spiral channels, and are arranged so that the material passes through them in turn and is churned by beaters 32 on longitudinal shafts 31 driven from a motor 38. The drive includes a disconnectible coupling operated by an increase in torque arising from the material becoming stiff, a rod being moved longitudinally by the disconnection of the coupling and effecting the closing of a switch 79, and thus. the closing of the valve 40 controlling the supply of brine. The valve 29 on the bye-pass comprises a port 91, Fig. 5, controlled by a gate 92 responsive to an increase of pressure. For this purpose, a stem 93 on the gate 92 is connected with a spring-influenced diaphragm 86, movement of which, induced by increased pressure in the valve chamber 82, closes the port 91. Specification 332,593 is referred to.
Patent GB-472426-A (GB)
Title: Improvements in magnetic work holders
IPC: H01F7/04
Filed: 1936-05-05
Abstract: 472,426. Magnetic work holders. NEILL & CO. (SHEFFIELD), Ltd., J., and BOWER, W. L. May 5, 1936, No. 12674. Addition to 429,199. [Class 35] [Also in Group XXIII] In a magnetic workholder of the kind claimed in the parent Specification the permanent magnet 9 and a, pair of polepieces 6 are relatively rotatable into a position in which the flux is short-circuited through the individual polepieces, passing through them in a direction at right-angles to its previous course. The main polepieces 6 project from the lower end of an aluminium casing 5 having a cover plate 7 from which is rotatably supported a substantially cylindrical magnet assembly comprising the permanent magnet 9 and two polepieces 10. In the " on " position the polepieces 10 rest on the polepieces 6 through which the flux passes longitudinally to the work. When the magnet is rotated through 90‹ by the lever 13, each of the polepieces 10 forms a leakage path for the flux which passes transversely through their upper ends while arcuate mild steel plates 8 secured within the casing act as screens to cut down stray flux. The underside of the lever 13 is formed as a cam which co-operates with two pins 14 projecting from the cover plate 7 to raise the magnet assembly away from the polepieces 6 as it is turned to the off position. The magnet may be rotated slightly beyond the " off " position so as to allow a small amount of flux to pass through the work in the reverse direction and so destroy any residual magnetism in the work piece.
Patent GB-638557-A (GB)
Title: Improvements in or relating to welding rods for arc welding and the like
IPC: B23K35/30
Filed: 1947-05-09
Abstract: A welding electrode or rod contains iron, cobalt, and at least one of molybdenum, niobium, tantalum or tungsten such that the deposit is a precipitation hardenable substantially carbon-free ternary or higher alloy that can be worked by cutting, grinding, &c., immediately following deposition, and subsequently hardened by annealing.  At least part of one or more of the metals is in the flux coating if any, preferably as a metal powder, but it may be in combined state. The weld metal is used for tool tipping, roll repairs, seaming, &c., and is rapidly cooled from 1200 DEG  to 1300 DEG C before annealing at 500 DEG  to 700 DEG C by furnace or carbon arc. The proportions are varied to produce martensitic, ferritic, semi-ferritic, or austenitic structures and examples contain 3 to 60 per cent cobalt and 4 to 40 per cent tungsten; 3 to 65 per cent cobalt and 4 to 35 per cent molybdenum; 3 to 75 per cent cobalt and 4 to 25 per cent tantalum or niobium.  A coating on a mild steel wire comprises ferro molybdenum (35/65) 20 parts, cobalt 25 parts, ferro-manganese 2 parts, ferro silicon 6 parts, flux and slag-forming substances 47 parts, by weight, plus a binder, e.g., water-glass.
Patent GB-1387666-A (GB)
Title: Traction member for a tyre chain assembly
Inventor: MULLER A
IPC: B60C27/08
Filed: 1972-03-17
Abstract: 1387666 Tyre chains EISEN-UND DRAHTWERK ERLAU AG 17 March 1972 [24 March 1971] 12678/72 Heading B7C A traction member for a tyre chain consists of a plate having pairs of opposed parallel edges, e.g. 2, and a single opening, e.g. 5, for receiving two links 6 to connect the member to other similar members, each edge being capable of serving as a ground-contacting edge with the respective opposed parallel edge then serving as a tyrecontacting edge, and the opening either being circular, Fig. 5 (not shown), or being shaped, Figs. 1 and 3, to define separate recesses, e.g. 7, such that each edge of the member has a respective recess directed towards it and the two links 6 can each be received in a recess regardless of which edge is chosen as the ground-contacting edge. In the embodiments of Figs. 1, 3 and (5) the plate is substantially square, having comers, e.g. 3, rounded with a radius of curvature approximately equal to 1/6 of the length of an edge, and both the edges of the plate and the edge of the opening are convex in cross-section. The links 6 used with the members to form the chain may be annular and of circular section, their size being chosen so that each member may be turned in the chain to expose a fresh edge to the ground. The links 6 and members may be arranged so that a link 6 is connected to three members.
Patent GB-165611-A (GB)
Title: Improvements in buffing and draw spring arrangements for railway and like vehicles
IPC: B61G11/08
Filed: 1920-05-07
Abstract: 165,611. Spencer, Moulton, & Co., Ltd., G., and Cook, F. C. May 7, 1920. Buffers; draw-gear.-In a buffing or draw spring arrangement of the kind comprising buffing or draw springs which are compressed in stages, means are provided whereby two springs, or two sets of springs are compressed first in series and then for the remainder of the stroke in parallel. The springs a, a, are mounted on a floating spindle b, a flange h fixed to the spindle b and a loose washer i separating the two spring banks. One end of the spindle b is guided in a plate c and the other in a hole drilled in the buffing- spindle. A rebound spring r secured by a washer p and a cotter o prevents the buffing-rod e from passing outwards through the headstock g. The inward movement of the buffing-rod first compresses both springs a in series until the washer i contacts with the end of the cylinder k, the end of the spindle b at the same time contacting with the end m of the hole d. Further inward movement of the buffing-rod causes each spring a to be compressed in parallel. The edge of the washer i and the end of the cylinder k may be coned so as to centralize the springs. A similar arrangement is shown for draught purposes except that the flange h is loose on the draught spindle and has a sleeve through the centre of the spring a extending for about half its length, against which sleeve the washer bears when the springs are compressed in parallel. Any type of spring may be used.