baber/WOPTO huggingface dataset:
Patent GB-1098481-A (GB)
Title: Improvements in or relating to decorative panels
IPC: B44C5/04
Filed: 1964-01-28
Abstract: A process for the manufacture of decorative panels comprises forming grooves in a sheet blank of polyolefin to obtain a mould, casting thereon a sheet of synthetic resin which does not adhere to the mould, and removing the cast resin from the mould.  The sheet blank e.g. of polyethylene, may be engraved to obtain the mould.  The resin may be applied in two or more layers to form a laminate.  A first layer of synthetic resin may be applied only into the grooves of the mould, the resin allowed to partially or completely set, and a further layer or layers of synthetic resin of the same or different colour from the first layer applied.  The or each synthetic resin used may be cold-setting and may be a polyester or epoxy resin.  The sheet of synthetic resin may be reinforced by incorporating therein or applying thereto glass fibre or other suitable reinforcing material e.g. "Terylene" (Trade Mark) or jute, during casting.  The grooves may be formed in the sheet blank to divide it into a number of discrete regions p  so that the resultant cast sheet of synthetic resin will show corresponding discrete regions bounded by ridges corresponding to the grooves in the mould, and at least some of the discrete regions may be coloured by applying colouring material e.g. coloured synthetic resin, thereto, to a height less than that of the ridges on the cast sheet which then separate adjacent regions. The cast synthetic resin may be translucent and any colouring material applied thereto is also translucent.  The cast sheet may be bonded to a support layer e.g. metal, wood or glass sheet after casting.  The support layer may be applied to the cast sheet before or after removal of the sheet from the mould.  The decorative panels may be coated with a layer of translucent synthetic resin over the ridged surface thereof, which layer may serve to bond the cast sheet to a glass plate.  Two decorative panels may be bonded together back to back to counteract any tendency of the panels to warp.  The mould may be of curved form and thixotropic resin used to make the cast sheet which is thus also of curved form.  The synthetic resin may be such that it can be remoulded after heating, the sheet of synthetic resin being cast flat and subsequently curved to any desired shape.  The master plates may be formed by engraving, by heating a polyolefin sheet and then placing the sheet over a mould which may be for instance of wood, expanded polystyrene, clay or plaster material the air then being evacuated from between the sheet and the mould, or by casting the polyolefin from a mould formed from plasticine (Trade Mark) clay or other suitable material.
Patent GB-963282-A (GB)
Title: Machine for correcting the alignment of railway tracks
IPC: E01B35/00
Filed: 1961-01-31
Abstract: 963,282. Track aligning machines. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. Jan. 31, 1961 [Feb. 16, 1960], No. 3703/61. Heading B7N. A machine for aligning rail track comprises a wheeled chassis 1 with track lifting and packing devices 4, 3 disposed at the forward end thereof, an anchor point 7, disposed above an axle 5 of the chassis on a connected portion of the track, for a wire 12 which extends forwardly of the chassis to a trolley 8 situated on an uncorrected portion of the track. The wire extends over a pulley on the trolley and is tensioned by a weight 10. A measuring rod 14 mounted adjacent the track lifting device determines with reference to the line the amount of lifting required to bring the track into alignment in the vertical plane. The trolley 8 may be kept at a fixed distance ahead of the machine by means of a spacer rod 13 or the trolley may be clamped to the track and a tensioned pulley provided, on either trolley or chassis, which maintains a constant tension in the constantly shortening wire as the machine moves up to the trolley. With means for moving the track laterally the arrangement may also be used to align the track in the horizontal plane.
Patent GB-578672-A (GB)
Title: Improvements in electrical limiter circuits
IPC: H03G11/02
Filed: 1944-02-29
Abstract: 578,672. Current and voltage measuring apparatus. PEACHEY, F. A., and BERRY, S. D. Feb. 29, 1944, No. 3726. [Class 37] [Also in Group XXXV] In an electrical limiter circuit comprising a shunt rectifier and fixed biassing means, additional means are provided whereby there is applied to the rectifier a bias which effectively opposes the fixed bias and whose value increases with increasing amplitude of the applied oscillators. The alternating voltage on the lines L, L is applied to the bridge-rectifier W1 and meter M, and is limited in amplitude by the inversely-connected rectifiers W2, W3 and fixed biassing means B1, B2. The additional rectifiers W4, W5, connected in the same sense as the corresponding rectifiers W2, W3, respectively, produce rectified potentials across the series-connected circuits comprising the resistances R1 R2 and shunt condensers C1, C2 respectively which effectively oppose the corresponding fixed biasing potentials provided by the means B1, B2 and which increase with increasing amplitude of the applied voltage. Specification 563,034, [ Group XL], is referred to.
Patent GB-856025-A (GB)
Title: Electrostatic generator
IPC: H02N1/08
Filed: 1959-02-03
Abstract: 856,025. Electrostatic generators; charging with static electricity. HIGH VOLTAGE ENGINEERING CORPORATION. Feb. 3, 1959 [Feb. 3, 1958], No. 3762/59. Class 35. An electrostatic generator comprises a stator and rotor or two oppositely moving members having inter-engaging rows of blades. In the form shown in Fig. 1 having a stator 1 surrounding a rotor 2, both stator and rotor are made up of a ring of mutually insulated comb-like units 15, 7 which may be cut from a single piece of metal. The rotor is mounted on a shaft 11 by spokes 12 composed of alternate insulators and metal plates, and the shaft may be maintained at a potential between the terminal voltages of the machine by means of a divider and supported on legs of similar construction to the spokes 12. The stator carries two axially extending terminals 3, 4, the former being at the lower potential e.g. grounded or connected to an exciting potential 33, while the latter constitutes the output terminal. An accelerator tube 5 may comprise the load between these terminals. The remaining stator units carry end-shrouds 20 of a round contour similar to that of the main terminals. The end blades of the rotor are formed with teeth 28 which are engaged by driving gears mounted on shaft 32 as shown in Fig. 7. The gearing may serve as a charge-transfer or earthing link by earthing the shaft 32 and connecting the terminal 3 to an excitation potential 33. Similar gearing may make a connection to the high-voltage terminal 4 at the other end of the rotor and may serve to drive an alternator for supplying cathode heating current. An increased voltage may be obtained by mounting a series of such generators in vertical cascade, mechanical coupling being through the gearing at the ends of rotors. It is described how this gearing may serve as the current-transfer means between successive rotors and the interconnection of the stator elements of successive units is also described (Fig. 9, not shown). The machine described is arranged for two poles 3 and 4, but it is also described how, by interconnecting every third stator unit, an effective eight-pole or twenty-pole machine may be produced for the generation of heavy current at low voltage (Figs. 4 and 8, not shown). Instead of mounting the moving blades in a rotary fashion they may be carried on chains passing over pulleys, and by directing the blades inwardly as shown at 59<SP>1</SP> in Fig. 14 they may be caused to interact with each other instead of with stationary blades. In a further modification the blades may be axially directed instead of radially, thus forming comb-like sectors. In this case both members may rotate. The machine may be insulated by vacuum or gas under pressure.
Patent GB-292437-A (GB)
Title: Improvements in and relating to spindle apparatus for spinning and like machinery
IPC: D01H7/06
Filed: 1928-02-07
Abstract: 292,437. Ambler, S. Feb. 7, 1928. Spindle apparatus. - In spindle apparatus of the kind described in Specification 258,162 wherein a cap tube is carried by a bearing on the top part of a stationary spindle mounted in a lifter rail, the bearing being lubricated from an oil well carried by the spindle below the wharl, the tube T is extended above the bearing B to form a reservoir R for lubricant which is closed by an apertured cap R' to prevent expulsion of the lubricant by centrifugal force. Normally when the tube is rotating, lubricant ascends the spiral S' in the spindle from the well C, and the surplus enters the reservoir through a. hole B<1> in the bearing and returns when the tube is stationary. The apparatus is used with a stationary ring A adjustably mounted as described in the Specification above referred to.
Patent GB-676250-A (GB)
Title: Improvements in and relating to tube or rod bending machines
IPC: B21D9/07
Filed: 1950-02-15
Abstract: 676,250. Angular bending. KENNEDY, W. H. Feb. 13, 1951 [Feb. 15, 1950], No. 3903/50. Class 83 (iv). Formers.-In a pivoted bender in which a tube &c. is clamped to a grooved former 5 rotated to effect bending, the clamp 7 is mounted on a carrier 8 rotatable independently of the former. The tube is placed on a mandrel 18 and is clamped to the former 5 by raising a hand lever 9 which is locked in position by a rod 14 engaging a slot in the former. A back clamp 23 is positioned by raising a lever 20 on a carrier 3 with abutment screw 22. When in clamping position a hole in the carrier 3 aligns with a rod 24 to allow a spring 19 to advance the mandrel 18 to working position. After clamping, the former is rotated by the lever 9 or by an electromotor to effect bending and the clamp is then released and the carrier 8 restored to its original position to allow the bent tube to be withdrawn when the back clamp 23 is released.
Patent GB-1510394-A (GB)
Title: Pipe union
IPC: F16L19/03
Filed: 1977-01-27
Abstract: 1510394 Pipe union CRANE Ltd 27 Jan 1977 [31 Jan 1976] 03915/76 Heading F2G A pipe union comprises two metallic tubular elements 1 and 2 each formed to be connectible to a pipe end, the elements having mating surfaces 1B and 2B with sockets 1C and 2C, which are brought into alignment when the elements are co-axial, and which contains pins 7 of electrically insulating material, one tubular element 1 being formed with an external screw thread 3 and the other element 2 has a radially outwardly projecting flange 4 the outer diameter of which is less than the root diameter of the screw thread 3, a metallic connecting ring 5 with a radially inwardly projecting flange 6 and an internal screw thread and insulating gaskets 8 and 9 formed to fit between the faces 1B and 2B and between the flanges 4 and 6. The lines of juncture between the connecting ring and the elements may be coated with insulating material in paste or mastic form. These coatings 10 and the gaskets 8 and 9 prevent passage of electric current through the union.
Patent GB-1031241-A (GB)
Title: Improvements in apparatus for stripping ingots from moulds
Inventor: KNIGHT JOHN HENRY
IPC: B22D29/04
Filed: 1962-03-20
Abstract: 1,031,241. Ingot strippers. WELLMAN ENGINEERING CORPORATION Ltd. March 13, 1963 [March 20, 1962], No. 4152/62. Heading B3F. An ingot stripper of the type described in Specification 564,208, which is referred to, is characterized in that the stripping means is operable through an additional distance in the sense which will cause a closing of the extracting tongs positively to close the holding tongs so that the very high pressure generated by the stripping means is transmitted to the holding tongs, so that these may be used for manipulating and transporting ingots &c.
Patent GB-471894-A (GB)
Title: Improvements in the manufacture of mixed esters of cellulose
IPC: C08B3/16
Filed: 1936-02-11
Abstract: Cellulose is subjected to a pre-treatment process to render it more reactive and is then treated with acetic or propionic anhydride crotonic acid, and a non-solvent of the cellulose ester produced whereby the fibrous state of the cellulose is preserved. The crotonic acid may be added at the esterification stage or carried over in the cellulose from a pre-treatment with crotonic acid.  The process may be modified by using a reaction product of crotonic acid and acetic or propionic anhydride as the esterifying agent.  The cellulose may be pretreated with crotonic acid, or a mixture of crotonic acid and acetic or propionic anhydride, or the reaction product of crotonic acid and acetic or propionic anhydride denuded of excess of lower anhydride, e.g. by fractional distillation, and the pre-treated cellulose may then be esterified by acetic or propionic acid alone or together with the crotonic reaction product.  Carbon tetrachloride, isopropyl ether, or butyl ether, may be used as non-solvent.  The cellulose esters produced are soluble in acetone.  Their unsaturated radicles may be halogenated.  In an example, linters are pre-treated with acetic acid and a little sulphuric acid.  After pressing off, the treated linters are immersed in a mixture of crotonic acid, acetic anhydride and carbon tetrachloride.  The temperature is slowly raised from below 15 to 35 DEG  C. and then to 50 DEG  C.  The fibrous ester produced is washed with carbon tetrachloride and then steamed.
Patent GB-266342-A (GB)
IPC: F04C2/04
Filed: 1927-02-15
Abstract: 266,342. Laraque, R. Feb. 18, 1926. [Convention date]. Fixed-abutment type; packing drums and vanes.-A rotary pump comprises a casing 1 which houses a rotary outer drum 3 and an inner eccentric cylinder 9 driven by a vane 11 on the drum 3 which engages an aperture 15 in the cylinder periphery and ends. The cylinder 9 rotates on ball bearings 10 carried by eccentric bosses on a hollow apertured sleeve 2 fixed centrally in the casing 1 and serving as an admission pipe. The drum 3 also rotates on ball bearings 4 supported by the sleeve 2 and is driven bv a shaft 5 on one end cover which on its inner side has a stub portion between which and the sleeve 2 is placed a ball bearing 7. The fluid passes into the working space through a port 22 in the inner cylinder periphery situated behind the vane 11 and is discharged through a port 23 in the drum periphery situated in front of the vane 11 and is delivered from the casing 1 through a pipe 25. The vane aperture in the cylinder is fitted on one edge with rollers and on the other with a. spring-pressed packing bar 16. Side packing segments are provided on the cylinders 9. A duplex arrangement is shown with the vanes at 180‹.
Patent GB-292878-A (GB)
Title: Improvements in crankshafts
IPC: F16C3/12
Filed: 1928-02-10
Abstract: 292,878. Macpherson, J. L. Feb. 10, 1928. Crank shafts; securing crank-webs on shafts.-Crank webs are secured to the pins and journals by securing an eccentric ring 18 in a recess between an eccentric enlargement 17 in the hole in the web 11 and an eccentric part 14 on the end of the pin or journal 12.
Patent GB-266346-A (GB)
Title: The manufacture of new aliphatic auromercapto carboxylic acids
IPC: C07G99/00
Filed: 1927-02-15
Abstract: 266,346. Chemische Fabrik auf Actien (vorm. E. Schering). Feb. 17, 1926, [Convention date]. Addition to 265,777. Samples furnished. Aliphatic auromercaptocarboxylic acids are prepared by treating an aliphatic #-mercaptocarboxylic acid with an auric salt in neutral, acid or alkaline solution. The products possess therapeutic properties; their sodium salts are soluble in water. According to the example, cystein hydrochloride is treated with potassium auribromide in the presence of sulphurous acid solution. The Specification as open to inspection under Sect. 91 (3) (a) is not restricted to the treatment of the #-acids and refers to the addition of salts. of sulphurous acid to the reaction mixture; it also contains an example of the preparation of aauromercaptopropionic acid by treatment of thiolactic acid with potassium auribromide. This. subject-matter does not appear in the Specification as accepted.
Patent GB-554769-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C35/12
Filed: 1942-03-31
Abstract: 554,769. Bearings. JOY, R. E., and RAY ENGINEERING CO., Ltd. March 31, 1942, No. 4277. [Class 12 (i)] A self-centering conical ball or roller bearing has a coned outer race 15b engaged by a tapered split sleeve 16 engaged by a bush 17 screwed into the casing 50 and rotated by a spring 22 connected between pins 53, 55 in the bush and casing. A spring washer 30 provides a counter-force to prevent the bearing being overloaded or jamming. A fixed bearing 40 may be provided at the other end of the spindle 11 to take up external axial thrust. Pin 53 may project through a slot in the casing and be connected by an external spring to a pin 55 on the outside of the casing. The split sleeve 16 may be integral with the bush 17. The casing has a sump for oil preferably kept at the level 52 to cover a bi-metallic strip 56 secured between the casing and the bush 17 to maintain a temperature correction.
Patent GB-569338-A (GB)
Title: Improvements in separation of copper and nickel
IPC: C25C1/12
Filed: 1941-04-01
Abstract: 569,338. Recovering copper &c. BOLTON & SONS, Ltd., T., and DOLPHIN, H. E. April 1, 1941, Nos. 4331/41 and 3575/42. [Class 41] Small fragments of material of or containing copper such as bullets (containing copper, nickel, aluminium and lead), or copper scrap, are collectively made the anode in a hot acid bath containing copper sulphate, the copper being deposited on copper cathode sheets. The fragments are disposed in a perforated container 2 of inert material such as lead, preferably hardened with antimony or tellurium, a copper contact plate 3 being inserted in the bullets and insulated at 7 from the cathode bus-bar 6. The lead and aluminium may be previously removed from the bullets respec. tively by heating and by digesting with hot caustic soda. Nickel passes into solution as nickel sulphate and may be either crystallized out or electrolyzed with an insoluble anode. The copper left in solution is recovered either by electrolysis with a nickel or nickel alloy anode or by boiling in the presence of metallic nickel.
Patent GB-660676-A (GB)
Title: Improvements in window structures
IPC: E06B3/44
Filed: 1949-02-17
Abstract: 660,676. Windows. ZITOMER, A. Feb. 17, 1949, No. 4371/49. Class 20(iii) The frame in which metal storm-sashes 20 slide is built up from side members 6, 8, with which the channel guides 15 for the sashes are integral, a top member 7 and an adjustable sill 26. The side and top members are all separate and may be cut to the required lengths and assembled in situ, the corners being mitred or provided with cover plates. The faces of the members 6, 7, 8 are ribbed as at 91 and a layer of caulking is inserted in the channel thus formed between the members 6, 7. 8 and the surfaces 5 to which they are applied. The channel guides 15 at one side are provided with spring-pressed plates whereby the storm sashes may be entirely removed from the frame by a sideways movement against the springs.
Patent GB-1253684-A (GB)
Title: Improvements relating to tubular knitted fabrics
Inventor: WIGNALL HARRY
IPC: D04B9/46
Filed: 1967-10-27
Abstract: 1,253,684. Knitting. BENTLEY ENG. CO. Ltd. 16 Oct., 1968 [27 Oct., 1967], No. 4374/69. Headings D1C and D1K. The toe of a stocking is closed by constricting the end of a circularly knitted tube and retaining it in a constricted condition by a binding yarn anchored at its ends and wound round the fabric. The stocking is knitted in either direction and the toe is formed as a turned welt construction by retaining loops as welt hooks or on alternative needles of a two bed machine whilst knitting continues on the remaining needles. Prior to transference of the original course of held loops back to the needles the diol is raised or the beds separated sufficiently to enable a yarn to be fed from a guide and caused to be wrapped round the central portion of the turned toe so as to constrict the fabric and close the tube. Subsequently the loops are transferred and knitting continues on all the needles in one bed. The ends of the yarn wrapped round the tube are knitted in before and after the wrapping operation. The wrapping yarn may be of a material capable of being melted to fix the closure of the tube during boarding. To assist in operating the welt diol the main diol shaft and head is surmounted by a cam capable of raising and lowering the diol into three positions in which it co-operates with the needles, retains the transferred loops during production of the toe and finally raises the diol to enable the yarn to be fed to the fabric extending between the welt hooks and needles. To assist in closure of the tube a pivoted arm is operated to impinge on the tube and deflect it inwardly as it rotates prior to the yarn being wrapped about it.
Patent GB-1214613-A (GB)
Title: Improvements in or relating to nut tapping machines
IPC: B23G1/18
Filed: 1969-01-27
Abstract: 1,214,613. Nut tapping machines. AJAX GKN Ltd. 27 Jan., 1969 [27 Jan., 1968], No. 4416/69. Heading B3N. [Also in Division F2] A nut tapping machine in which nut blanks gravitate down a guide 24 from a hopper 5 to a tapping zone in which a blank lies in axial alignment with a rotary tapping tool 31 having a tap-head 32 and a curved shank 33, the blank, while being restrained against rotation, then being pushed on to and over the tap-head by a ram operated pusher 48 and the machine has a finger 94 which engages the lowermost blank in the guide and positively propels this blank into the tapping zone, the finger being moved out of engagement with the blank when the blank is moved towards the tapping tool. On propelling a blank downward a contact 88 contacts a contact 90 thereby closing a circuit for controlling the flow of compressed air to and from a ram 43. A tube 34 is driven via pulleys 38, the tube is connected to a yoke 40 which in turn drives the tapping tool via finished nuts on the shank 33. A ratchet and pawl assembly partly rotates the hopper 5 and is activated by a link 55 which is connected to an arm of a bell crank lever, the other arm of which engages the pusher 49. The hopper has a disc 7 which is engaged by a hopper agitation brake, Fig. 6 (not shown), which causes a lesser but reverse rotation to that produced by the ratchet and pawl assembly. In the tapping zone the blanks rest on pins 54, correct rotation of the blanks is achieved by a spring loaded plug positioned slightly above and to one side of the pins.
Patent GB-550480-A (GB)
Title: Improvements relating to the production of isoparaffins
IPC: C07C5/27
Filed: 1941-04-02
Abstract: 550,480. Catalytic agents. ANGLO-IRANIAN OIL CO., Ltd., HOWES, D. A., and FAWCETT, E. W. M. April 2, 1941, No. 4443. [Class 1 (i)] [Also in Group IV] Normal paraffin hydrocarbons of at least four carbon atoms are isomerised by contacting with an oxide or sulphide of a metal of group 6 in the presence of hydrogen under a pressure of 1 to 50 atmosplheres, preferably at a temperature of 200-600‹C. The catalyst may be admixed with an oxide or sulphide of a metal of group 8 and to prolong the life of the catalyst a sulphur compound such as hydrogen sulphide or methyl mercaptan may be present. Catalysts mentioned are tungsten disulphide, a mixture of nickel and tungsten sulphides and a mixture of molybdenum disulphide and tungsten trioxide; preferably the catalyst is mixed with an inert material such as kieselguhr, silica gel or active carbon. An example is given of the conversion of n butane into isobutane by passage in admixture with 8 per cent. by volume of hydrogen, over a catalyst consisting of tungsten and molybdenum disulphides prepared by passing hydrogen sulphide through a solution of tungstic acid and ammonium molybdate in aqueous ammonia to which kieselguhr has been added; a temperature of 450‹C. and a pressure of 300 pounds per sq. inch are employed. Specification 527,767, [Group IV], is referred to.