baber/WOPTO huggingface dataset:
Patent GB-781823-A (GB)
Title: Improvements in and relating to electromagnetic relays
IPC: H01H51/34
Filed: 1955-08-26
Abstract: 781,823. Electromagnetic interrupters. GENERAL RAILWAY SIGNAL CO. Aug. 26, 1955 [Aug. 30, 1954], No. 24589/55. Class 38 (5). [Also in Group XXXVIII] A relay for flashing signals (see Group XXXVIII) comprises three magnetic cores 12-14 connected at one end by a magnetic plate 17 and carrying polepieces 19-21 at their free ends. The cores 12, 13 have windings 33, 34 and the core 14 has a copper sleeve 32, energization of one of the windings causing an armature 22 rigidly connected to a spindle 16 to move towards the appropriate polepiece 19 or 20 and thus complete a magnetic circuit through the polepiece 21 and core 14. A crossbar 36 connected to the spindle 16 controls contact spring operating bars 37-39, the bars 37, 38 resting on the upper surface of the bar 36 and the bar 39 having a positive connection by means of a slot 67. Each bar 37, 38 controls a contact spring set LC2, Fig. 2, for controlling the flashing signals and bar 39 controls a spring set CC, Fig. 3, for causing alternate energization of the windings 33, 34 and thus oscillation of the armature 22. The spring set LC2 comprises movable springs 47, 49 and 50, 52 biased towards fixed springs 48, 51 and operating change-over fashion therewith upon upward movement of the bar 38 from the position shown. The bar is biased downwardly by springs 42, 43 and the spring 43 is arrested by a stop 57 so that the bar 37 or 38 is only moved by the bar 36 when the related end of the bar 36 moves upwards from the horizontal position, the bar 36 assuming a horizontal position under the action of the springs 42, 43 when neither winding 33 or 34 is energized. The spring set CC comprises fixed springs 68, 70 carrying permanent magnets PM1, PM2 secured by bolts 78, 80 having silver contact heads 79, 81 cooperating with opposite ends of a silver rivet contact 77 securing magnetic washers 75, 76 to the movable spring 69. Resilient tips 72, 73 on the blade 69 are engaged by shoulders 82, 83 on the bar 39 supported by springs 61, 62. The arrangement is such that contact 77 is always in engagement with one of the contacts 79, 81, downward movement of the bar 39 from the position shown causing build-up of spring tension in the tip 72 so that eventually the magnetic attraction between 75 and PM1 is overcome and contact 77 moves quickly from contact 79 to contact 81, a similar action taking place upon subsequent upward movement of the bar upon change-over of the windings. This change-over occurs when the bar 36 is in its tilted positions, but owing to the copper sleeve 32 there is a delay before a consequent changeover of the armature.
Patent GB-1060707-A (GB)
Title: Improvements in or relating to apparatus for squeezing out liquids from web-shaped textile materials
IPC: D06B1/14
Filed: 1965-06-10
Abstract: 1,060,707. Textile treating apparatus. MASCHINENFABRIK BENNINGER A.G. June 10, 1965 [June 16, 1964], No. 24633/65. Heading D1L. Apparatus for squeezing out liquid from textile webs comprises first, second, third and fourth substantially co-extensive rollers 10, 11, 12. 13 having their axes substantially parallel and arranged in pairs, one roller of each pair being disposed above the other, the first and second rollers 10, 11 being mounted for rotation about fixed axes and capable of being driven and the third and fourth rollers 12, 13 being mounted for movement in at least one' direction transverse to its axis, whereby each can be brought into contact with at least one of the first and second rollers 10, 11. In the embodiment shown rollers 12, 13 are'mounted on pairs of arms 14, 15 eccentrically mounted on shafts 16 and 17. Shafts 16, 17 can be turned by pneumatic or hydraulic pistons so as to move rollers 12, 13 in directions of arrows A, B respectively and the arms 14, 15 can be pivoted about the respective shafts by further pneumatic or hydraulic means 30, 31 to move rollers 12, 13 in the direction of arrows C and D. By various combinations of such movements the rollers 12, 13 can be brought individually into engagement with either or both rollers 10, 11 to give various combinaions of roller contact, (Figs. 2-10, not shown). Treating liquid can be maintained in a central enclosure between all four rollers and/or between the nip of two rollers, the material being treated being guided in any suitable way through the various nips between the rollers. Guide rollers 42, 43 (Fig. 2, not shown) may be used to ensure both sides of the web material being treated and a separate treatment bath in which the material passes around a single immersed roller or a plurality of rollers in zig-zag fashion may be used in combination with the apparatus. Also the web may be dried or otherwise treated between two liquid treaments.
Patent GB-601598-A (GB)
Title: Improvements in or relating to the construction and setting of boilers
IPC: F24H1/36
Filed: 1944-12-08
Abstract: 601,598. Hot-water boilers etc.; tubular heat-exchange elements. DAVEY, PAXMAN, & CO., Ltd., and WARD, F. H. ALLMAN-. Dec. 8, 1944, No. 24656. [Classes 64(i) and 64(iii)] A boiler, e.g. a hotw a t e r boiler, comprises a cylindrical shell a assembled throughout by welding and containing separate sets of tubes b, c, the shell having its setting formed by a prefabricated steel structure, formed for example of bars j, k, capable of being filled in with fire brick l or other heat-insulating or heat - resisting material after erection. The brickwork. which is encased in steel plates, is stepped or inclined outwards on its inner surface in the neighbourhood of the shell a, so that about half of the surface of the shell is exposed to the grate. The shell may be composed of short cylindrical sections. The diameter of the tubes b, c may be 1/50th to 1/70th of their length. Some or all of the tubes, e.g. those in the first or second passes only, may contain helical metal strips with a pitch of 12 to 18 inches. The smoke-box door may be in one or two parts hinged at the side or sides. A half-arch, which in a modification directs hot gases from the combustion chamber into the lower set of tubes c, is composed of a moulded firebrick piece or a curved steel plate lined with a plastic fireclay.
Patent GB-697273-A (GB)
Title: Improvements in injection-moulding and extension apparatus
IPC: B29C45/50
Filed: 1951-10-23
Abstract: 697,273. Injection-moulding and extrusion machines. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1951 [Oct. 27, 1950], No. 24726/51. Class 87 (ii) The rotating impelling screw 1 reciprocates axially, and its cylindrical forward end la is smooth, i.e. non- threaded, and slides through a bushing 14 at the forward end of cylinder 3. The screw is rotated by electric motor 23 and worm gearing 24, 25, and is reciprocated by a fluid-pressure piston 28, the splined shaft 19 sliding through the gear 25. A chamber 7 in cylinder 3 facilitates mixing of the plastic material (cellulose derivatives, vinyls, polystyrene). Cooling passages 17, 18 are formed in cylinder 2. Heating elements 15, 16 surround cylinders 2, 3. In operation, the screw is rotated whilst it is in the retracted position shown, thereby feeding material into chamber 7 and bore 6 of cylinder 3. Then the screw is advanced to the left to force material through nozzle 8. Then the screw, still rotating, retracts, feeding . material forward as it retracts. These movements may be correlated with movements of moulds 10.
Patent GB-247572-A (GB)
Abstract: 247,572. H³ttenwerke Tempelhof A. Meyer. Oct. 11, 1924, [Convention date]. Tilting furnaces; discharging.-A melting furnace, constructed to facilitate the separation of a fluid core 6 from an outer solid layer 5 and adapted particularly for carrying out the process according to Specification 241,224, comprises a horizontal cylindrical melting chamber 1, lined with refractory material 2 and provided with a tap tube 7 which extends, as shown, into the interior of the melting chamber. The latter is tiltably mounted on rollers 8 and the end walls 3 extend over only two thirds of the ends of the cyl- :nder to provide openings for the insertion of a gas burner and escape of waste gases respectively.
Patent GB-1457895-A (GB)
Title: Wire tensioning device
IPC: B21F9/00
Filed: 1973-05-23
Abstract: 1457895 Wire strainer L M CROWLE 17 May 1974 [23 May 1973] 24759/73 Heading F2G A device for winding and tensioning a wire, e.g. agricultural electric fence wire comprises a frame 1 within which a rotatable reel 2 is mounted; a reel tensioning flat spiral spring assembly interconnecting the reel with frame 1; a tensioning handle 11 connected to spring 14 of the spring assembly and a releasable locking pin 12 which locks the handle to the frame when spring 14 has been tensioned. The spring assembly consists of identical flat spiral springs 13, 14 attached by their inner ends to a winding shaft 5 and a tensioning shaft 9 respectively and by their outer ends to the inside of a freely rotatable cylinder 15 which interconnects them. Shaft 5 attached to reel 2 extends through bearing 6 in frame 1 and terminates within the reel and is spaced from shaft 9 which extends through reel 2 and bearing 10 on the opposite side of frame 1. In use frame 1 is anchored to a support by ring 3 and an electric fence wire passes through insulated sleeve 4 and is wound on to insulated reel 2 using handle 7 attached to shaft 5, until slack in the wire is taken up. Handle 11 is then rotated to wind up springs 13, 14 applying a torque to shaft 5 and locked to the frame leaving reel 2 free to rotate urged by the springs in the winding direction of the wire on the reel thus tensioning the wire. Springs 13, 14 are provided with heel portions which engage in notches in shafts 5, 9 respectively in the manner of a pawl and ratchet, the heel portions disengaging from the notches protecting the springs from damage if overwinding or rotation of handle 11 in the wrong direction occurs.
Patent GB-1458162-A (GB)
Title: Process for producing phenylphonsphonothioic dichloride
IPC: B01J21/00
Filed: 1975-06-10
Abstract: 1458162 Preparing phenyl thiophosphonyl dichloride NISSAN CHEMICAL INDUSTRIES Ltd 10 June 1975 [22 June 1974] 24835/75 Heading C2P Phenylphosphonothioic dichloride is obtained by reacting benzene with PSCl 3  in a closed pressure vessel at elevated temperature in the presence of a catalyst selected from Al, AlCl 3 , AlCl 3  + P 2 S 5  + PCl 3 , AlCl 3  + P 2 S 5  and AlCl 3  + PCl 3  under the self-generating pressure of HCl gas produced during the reaction. The reaction temperature is suitably in the range 100- 300 C. and the self-generating pressure should preferably be higher than 5 kg./cm.<SP>2</SP>. If desired some of the HCl gas may be discharged from the reaction vessel to control the pressure. The preferred molar ratio of PSCl 3  to benzene is from 1:1 1 to 2:1. Some diphenylphosphinothioic monochloride and triphenyl phosphine sulphide and formed as by-products.
Patent GB-1314096-A (GB)
Title: Elastomers
IPC: C08L51/00
Filed: 1970-05-22
Abstract: 1314096 Acrylic block polymers ROHM & HAASCO 22 May 1970 [26 May 1969] 24843/70 Heading C3P A process for the production of vulcanizable acrylic elastomers comprises, in a first stage, polymerizing, in suspension or emulsion in a liquid medium, an initial monomer charge containing (i) at least 45% by weight, based on the weight of the charge, of an alkyl acrylate monomer, the homopolymer of which has a glass transition temperature below - 35‹ C., or a mixture of alkyl acrylate monomers, the copolymer of which has a glass transition temperature below - 35‹ C., (ii) from 0-5% by weight of a polyethylenically unsaturated monomer, (iii) from 0-10% by weight of a curing site-containing monomer, and (iv) from 0-50% by weight of at least one monomer selected from alkoxyalkyl acrylates, alkylthioalkyl acrylates, cyanoalkoxyalkyl acrylates and nitrile-substituted alkyl acrylates; and, in a subsequent and final stage, polymerizing in contact with the suspended polymer product of the preceding stage a final monomer charge containing (i) at least 60% by weight, based on the weight of the final monomer charge, of ethyl and/or methyl acrylate, (ii) 0-40% by weight of one or more other alkyl acrylates or substituted alkyl acrylates, (iii) 0- 40% by weight of a nitrile-containing monomer, and (iv) 0-10% by weight of curing sitecontaining monomer. The preferred alkyl acrylates are butyl, hexyl and/or 2-ethylhexyl acrylate; the polyethylenically unsaturated monomer may be butylene diacrylate, butylene dimethacrylate or divinyl benzene; other monomers may be 2-methoxyethyl acrylate, 2- ethoxyethyl acrylate, 2-ethyl-thioethyl acrylate, 4-cyanobutyl acrylate and/or 2-cyanoethyl acrylate, and the curing site-containing monomer may be 2-chloroethyl-vinyl ether, vinyl chloroacetate, beta-(chloroacetoxy)-ethyl-methacrylate and/or 4-chloro-2-buten-1-yl acrylate. Between the first and final polymerization stages may be interposed at least one intermediate polymerization stage in which an intermediate monomer charge is polymerized in contact with the suspended polymer product of the first stage and before polymerization of the final stage, the intermediate monomer charge containing (i) ethyl acrylate and (ii) an alkyl acrylate monomer, the homopolymer of which has a glass transition temperature below - 35‹ C., and, optionally, (iii) a polyfunctional crosslinking monomer, a curing site-containing monomer or an oil-resistance improving monomer.
Patent GB-1300773-A (GB)
Title: Improvements in cutters
Inventor: HOUGEN E D
IPC: B23B51/05
Filed: 1970-05-22
Abstract: 1300773 Trepanning tool E D HOUGEN 22 May 1970 [5 June 1969] 24854/70 Heading B3C A trepanning tool comprises teeth 26 Fig. 1, 2, each tooth having a downwardly projecting cutting edge 38, and an upwardly projecting cutting edge 40. Edge 38 has a front rake 28, Fig. 3, and edge 40, Fig. 4, has a front rake 30 whose angle b is smaller than the angle a of rake 28, and the teeth are formed on a thickened portion 18 of the wall 16 Fig. 2. Cutting edge 38 has a clearance c, Fig. 3, which is less than the clearance d of edge 40. The rakes may be positive, negative, or zero, so long as rake angle a is greater than rake angle b. The rake angle may progressively diminish in a radially outward direction. A gullet 48 Fig. 2 is provided so as to assist the removal of cuttings. In a modification, the teeth are arranged in three groups 26a, 26b, 26c, Fig. 8, or 26d, 26e, 26f, Fig. 8a, staggered in the radial direction. Gullet (70), Fig. 10 (not shown) is of different shape to gullet 48, Fig. 2. In a modification, the tool comprises a cylindrical blade 80, Figs. 13, 14, which is press fitted into a sheet metal cup 78, the blade 80 is not thickened at its lower end, and the cutting teeth 82a, 82b, are set radially inwardly and outwardly so as to provide clearance.
Patent GB-1088348-A (GB)
Title: Improvements in and relating to apparatus for discharging from a container material in fluid form
IPC: B01J4/02
Filed: 1966-06-03
Abstract: 1,088,348. Delivering measured quantities of liquid or granular material; sampling material. KALLE A.G. June 3, 1966 [June 5, 1965], No. 24866/66. Heading B8N. An apparatus for delivering measured quantities of liquid or granular material from a container 1 comprises a piston 7 adapted to be reciprocated together with a partial rotation and provided with a recess 8 which can be moved into the container, the recess upon withdrawal from the container being arranged to align with an outlet port 6. The recess may be in the form of an annular space as shown or, as a bore or blind pocket in the piston. The apparatus may be used for sampling purposes.
Patent GB-518526-A (GB)
Title: Improvements in and relating to glands for vacuum chambers
IPC: F16J15/40
Filed: 1938-08-24
Abstract: 518,526. Stuffing box substitutes. ALEXANDER, P., and BARNES, P. C. Aug. 24, 1938, No. 24882. [Class 122 (v)] A rod 2, projecting through the wall 1 of a vacuum chamber, is sealed by liquid in a casing 3 secured to the vacuum chamber by a member 5 extended to dip into the liquid forming an annular V-tube. The outer face' of the liquid is subjected to an auxiliary vacuum through a pipe 10. Thus if the chamber is exhausted by a high-vacuum pump coacting with a preliminary pump, the pipe 10 may be connected with the preliminary pump. A baffle 13 diverts any bubbles of air leaking through the base of the casing. A movable liquid container 14 allows the height of the liquid in the seal to be kept at a convenient level in spite of variations in the vacuum difference. In a modification for a rod projecting through the top of the vacuum chamber, the rod carries a bell dipping into a liquid seal. If the rod is horizontal it may be driven by a vertical shaft, the shafts and gearing being enclosed by a liquid-sealed casing.
Patent GB-148079-A (GB)
Title: Improvement in piston rings and means and methods for making the same
IPC: F16J9/14
Filed: 1919-10-11
Abstract: 148,079. Schaap, A. K.. Oct. 11, 1919. Rings.-A split packing-ring is formed with overlapping ends with converging adjacent surfaces 20, 21, Fig. 20. In making the ring, an unsplit blank 1, Fig. 11, is placed inside a flange 13 on a chuck or holder 2, mounted on a table 8 which reciprocates under a cutter 5. The chuck 2 can be turned by a handle 14 about a pivot 7 in the plane of the cutter 5 the movement being limited by a washer 9<a> on a bolt 9, which secures a pivoted clamping bar 10 for holding the ring 1. The chuck 2 is swung to one side of the axis of the cutter 5, and a cut is taken to a half the depth of the ring 1. The chuck is then swung to the other side and a second cut is taken. The ring is then turned over and similar cuts are made on the other side of the ring but at a reduced bevel, the washer 9<a> being replaced by a larger washer. The result is the formation of a stepped joint as shown in Fig. 20. A number of such stepped rings are clamped on a mandrel in the compressed state and ground to the required size.
Patent GB-357347-A (GB)
Title: Improvements relating to electrical measuring instruments
IPC: G01R27/12
Filed: 1930-08-20
Abstract: 357,347. Supply meters. EVERSHED & VIGNOLES, Ltd., BAKER, C. F., and FINNIS, S. F. W., Acton Lane Works, Chiswick, London. Aug. 20, 1930, No. 24924. [Class 37.] Voltamperes on an unbalanced polyphase system are indicated, recorded or integrated by employing a current rectifier in each phase a, b, c, the voltage element of the instrument being the moving part and including two or more coils which carry currents out of phase with each other and are energised through full-wave rectifiers r, s, t. In a modification, two voltage rectifiers may be employed, one being connected with the neutral point which may be artificially made. The invention is adaptable for use on single-phase systems by inserting phaseshifting devices in the voltage coil leads.
Patent GB-378665-A (GB)
Title: Improvements in and relating to safety appliances for punching, blanking and embossing presses and the like
IPC: F16P3/04
Filed: 1931-09-05
Abstract: 378,665. Controlling machinery guards. STRONG, A. G. O., 26, Henleaze Gardens, Westbury-on-Trym, Bristol. Sept. 5, 1931, No. 24961. [Class 80 (iv).] Punching, blanking, embossing, &c. presses, of the kind employing a manually or automatically slidden feed-table 16 conveying the work to upper and lower platens 17, 18, are provided with a guard comprising a solid plate or a frame 1 with a wire mesh or like panel 2, which is pivoted at 3, 4 on brackets 5, 6 to assume a vertical position screening the platens when the table 16 is withdrawn for preparation of the work, as shown in Fig. 1, and a horizontal position when the table is thrust in, as shown in Fig. 2. The movements of the guard are controlled by gravity or springs and a cam 9 on the table acting through a roller 12 and links 10, 11 on one or both sides of the guard. When the guard is horizontal, it provides clearance for passage of the work thereunder, but extends forwardly the length of the operator's forearms to prevent contact of his hands with the platens. If the upper platen 17 rises above the horizontal level of the guard, a vertical extension 19 thereof is provided to cover the gap.
Patent GB-140334-A (GB)
Title: An improved trousers pocket
IPC: A41D27/20
Filed: 1919-10-13
Abstract: 140,334. Lurey, S. Oct. 13, 1919. Pockets.-A safety pocket fastened by a pressstud is provided within the usual side trousers pocket in the hollow of the groin. The material forming the pocket may be lining, cloth, or leather.
Patent GB-275142-A (GB)
Title: Improvements in artificial flowers made of glass, and process for the manufacture ofthe same
IPC: A41G1/00
Filed: 1926-10-07
Abstract: 275,142. Chanel, G. July 31, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Welding.-Artificial flowers are made from lowexpansion glass, such as that known by the registered Trade Mark "Pyrex." Small cylinders of the glass are blown, drawn out, and then pressed and bent to form petals and leaves which are welded on to a stem by means of a blowpipe flame. The welded spots are then annealed by means of a gas jet without unduly heating the adjacent parts. The production of a branch of lilac is described.
Patent GB-1065752-A (GB)
Title: Fault detecting
IPC: G01N21/89
Filed: 1965-06-14
Abstract: 1,065,752. Detecting flaws photo-electrically. EASTMAN KODAK CO. June 14, 1965 [June 15, 1964], No. 25051/65. Heading G1A. A laser beam is used to scan the surface of a moving web of reflective material and variations in the intensity of the reflected beam arising from faults are detected photo-electrically. Light in the infrared wavelengths from a helium-neon laser (10) Fig. 1 (not shown) is applied to scan a running web (14) through an expander or contractor lens system (32), a converging lens (13), and a rotary multi-face reflecting mirror (12), the reflected beam passing through a cylindrical converging lens (16) and being reflected by a mirror (17) to impinge on a photo-detector (18). The detector output signals are suppressed in a gating circuit (25) when the beam reaches the extremities of its sweep, by the outputs from photo-detectors (24), (27) to which the beam is directed by mirrors (23), (26). In an alternative arrangement a concave cylindrical reflector is used to reflect the beam on to the photo-cell in  order to overcome alignment problems arising from relative distance variations. In another arrangement spherical lenses may be included in the beam immediately before and immediately after its reflection by the test material, and the beam may then impinge directly on the cell. The apparatus is said to be suitable for monitoring a four foot wide strip and the beam may be reflected a number of times to reduce the overall length of the apparatus. The web may be inspected when passing round a roller or when backed by a flat plate from which static charges are earthed.
Patent GB-1581223-A (GB)
Title: Toy construction kits
IPC: A63H33/06
Filed: 1977-06-15
Abstract: Each building block (1) is provided on an outer surface with two connecting strips (2) which are each formed by two spring tongues arranged parallel to each other. Two intersecting slots (4) are arranged on the opposite side of the building block (1). The length of the individual slots corresponds to the length of the connecting strips (2). The outer dimensions of the building blocks (1) and the distances of the connecting means (2, 4) from the outer sides of the building blocks and from each other are graduated in the same modular dimension. The side opposite the open side of the building blocks is free of connecting means. The connecting means (2, 4) make it possible to clip together two building blocks both in the aligning direction and also at right angles to each other. <IMAGE>