baber/WOPTO huggingface dataset:
Patent GB-760134-A (GB)
Title: Improvements in or relating to copyholders for type-setting machines
Inventor: HOARE WILLIAM STUART
IPC: B41J29/15
Filed: 1953-12-29
Abstract: 760,134. Copy-holders. WATERLOW & SONS, Ltd. Nov. 29, 1954 [Dec. 29, 1953], No. 36061/53. Class 100(3) A copy-holder for a typesetting machine, comprising a pair of spring-loaded rollers, is provided with an attachment comprising an L-shaped support 1, Fig. 1, for cards 6 which can be turned to horizontal position when finished with, said support being mounted in a slightly rearwardly inclined position on the copy-holder by means of fingers 3 engaging between the rollers 4 and a roller supporting bracket 5. Alternatively, the attachment may be provided at its upper edge with a flange 7, Fig 3, shaped to engage over the rollers and in front of a fixed bar 9, or with a flange 11, Fig. 4, shaped to engage between the rollers and in front of the bracket 5. The attachment may be of metal.
Patent GB-1362697-A (GB)
Title: Cassette opening mechanism
IPC: G03G15/00
Filed: 1971-08-02
Abstract: 1362697 Cassettes XEROX CORP 2 Aug 1971 [5 Aug 1970] 36184/71 Heading G2X A cassette has grooves in its side walls which co-operate with means forming part of a cassette-receiving station so as to pivot the top cover of the cassette between an open and closed position on insertion and withdrawal of the cassette into the said station. The cassette 12 contains a flat xerographic plate, and slides in the direction of the arrows into the cassettereceiving device 10. This has flat guide means 20 on each side, connected by a horizontal member 26, on which the cassette slides, until its forward end passes on to another horizontal member 36 having an upwardly extending lip 38 against which it abuts to terminate the movement. Cut-out portions 54 in member 36 accommodate springs 42 which push against the cassette in this abutting position. Each guide 20 has a vertical part ending in an inwardly extending flange 32 see also Fig. 2 (not shown) which fits over the base member of the cassette as it slides into the device 10. On each side of the receiving device is a fixed pin 34. The cassette has a top cover 64 which can pivot open about a hinge 66. Each side wall of the cassette has a groove 80 which divides into two grooves 78, 85. When the cassette is initially inserted into the receiving device, pins 34 enter into the grooves 78. As the grooves begin to incline downwards, the cover 64 is pivoted anti-clockwise into an "open" position. With further continued insertion, pins 34 enter the grooves 80 and continue the opening movement of the cassette top. A notch 44 in the bottom wall of the cassette aligns, when the cassette is fully inserted, with a latch 46 passing through a hole 48 in member 36. If there is no xerographic plate in the cassette, it will be locked in this position by the latch. If the plate is present, or inserted, it will be sensed by a reed switch 50, and the latch 46 displaced to an inoperative position. Thus the cassette will then be slightly displaced by springs 42. In the fully inserted position the cassette depresses a micro-switch 60 passing through an opening 62 in member 36. If switch 50 does not sense the presence of a xerographic plate, the operator can actuate feeding mechanism which withdraws a plate from a storage magazine, charges it, and inserts it into the cassette. It is then sensed by switch 50 and thus the cassette is unlatched and given an ejecting movement by springs 42. It can now be manually withdrawn from the receiving station 10, and passed to the exposure and printing stations.
Patent GB-785666-A (GB)
Title: Improvements in or relating to t-slot bolts
IPC: F16B35/06
Filed: 1955-12-16
Abstract: 785,666. Bolts &c. THORBERG, A. S. Dec. 16. 1955 [Jan. 7, 1955], No. 36227/55. Class 89(1) A T-head bolt, eg. for use in T-slots in machine-tool work-tables, comprises a screwed shank 1 and a head 2 having shoulders 3 to engage the complementary surfaces of the slot, and a rib 4 to engage the neck of the slot, there being provided in the head one or two screws 5 which may be driven against the slot-bottom to clamp shoulders 3 against said surfaces and secure the bolt firmly.
Patent GB-1090408-A (GB)
Title: Improvements in or relating to apparatus for injection moulding
Inventor: BEEBEE BRIAN HARRY
IPC: B29C45/20
Filed: 1963-09-14
Abstract: 1,090,408. Injection moulding. DUNLOP RUBBER CO. Ltd. Aug. 24, 1964 [Sept. 14, 1963], No. 36259/63. Heading B5A. An injection moulding machine has a recess 10 in the outer surface of the injection chamber, the recess being adapted to span a plurality of inlet holes 17 leading to one or more moulding cavities 16. The recess 10 may be tapered as shown or may have a roughened base to assist in retaining plastic material therein after injection. By making the area of the recess in the plane of the surface 8 greater than the total area of the bases of the mould cavities 16, the closing force on the mould 13 is made greater than the opening force. Starting and stopping of the injection screw is controlled by a switch 18 operated by the mould 13 which is raised and lowered by a fluid pressure unit 3, 4.
Patent GB-1124812-A (GB)
Title: Improvements in and relating to the production of compounds of the vitamin a series
IPC: C07C403/00
Filed: 1965-08-24
Abstract: Aldehydes of the Vitamin A series are prepared by hydrogenating the corresponding nitriles in aqueous acidic media in the presence of hydrogenation catalysts, and hydrolysing the resulting aldimines to obtain the aldehydes. In examples, b -ionylidene-acetonitrile and Vitamin A acid nitrile are hydrogenated in aqueous acetic acid solutions using Raney nickel and a nickel-aluminium alloy as catalysts, the hydrolysis being effected by the acidic media.  Other starting materials mentioned are 2,2,6-trimethyl cyclohexenyl - 1 - yl nitrile, geranonitrile and bis-ionylidenedicyanopolyene.
Patent GB-1106942-A (GB)
Title: Improvements in electrical devices
Inventor: GODFREY ALAN
IPC: G06F7/68
Filed: 1964-09-04
Abstract: 1,106,942. Counters. PLESSEY-UK. Ltd. 27 Aug., 1965 [4 Sept., 1964], No. 36439/64. Heading G4A. Especially for use in a frequency-control circuit, a predetermined counter is arranged to count from its tens complement up to full capacity, the attainment of full capacity by the highest denomination D3 setting a flip-flop F2 of the next lower decade D2. This decade then counts a full cycle followed by a reset cycle. The process continues for each decade in turn. Figs. 3A, 3B show one decade with provision for adjustment of the predetermined number. Bi-stable stages B-E are arranged as a gated counter, while stage A triggers on as count changes from 9 to 0, to provide carry, and triggers off at a count of 3. Stages A-F are turned on by gates A<SP>1</SP>-F<SP>1</SP>, off by A<SP>11</SP>-F<SP>11</SP>. Normally, F is off and the counter cycles normally with carry to the next higher denomination. As the higher denomination changes from 9 to 0, F is triggered, but the counter steps normally until it reaches 9 when gates A<SP>111</SP>-E<SP>111</SP>, set by switches SWA-SWE, operate to set the counter to the required digit. The process repeats for lower denominations. Each denomination of the variable divider can be varied by anything from + 5 to - 4. The required variation is set up on switches SWWSWZ to control further AND gates V-Z which become operative at a count of 4 in the full cycle which follows the triggering of F. Normally, A restores at a count of 3, but this is prevented in the case of adjustment and gates V-Z set the counter to add or omit the necessary steps.
Patent GB-156587-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/045
Filed: 1920-12-30
Abstract: 156,587. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Sandin, M. J.). Jan. 12, 1920, [Convention date]. Contacts. -In a refillable cartridge fuze, the securing - means for the terminal blade member constitutes a gas escape and cooling passage. Washers 5, 6, 8 perforated for the passage of a blade member 4 are threaded thereon. The washer 8 is a tight fit around the blade, has a transverse groove, and is smaller in diameter than the bore of the casing. The washers 6 and 8 secured firmly to the blade, as by swaging or by striking up the metal of the blade at 19, while the washer 5 is secured by screws to the washer 6. The whole is secured by a flanged screwed ferrule 2 to the fuze casing 1, a projection on the washer 5 engaging a notch in the end of the casing to prevent the terminal from rotating. The gases from the blown fuze pass around the edge of the washer 8 and along the passage 9 between the washers 6 and 8. where they are cooled, and leave the fuze by way of clearances between the blade 4 and the washers 5 and 6.
Patent GB-454369-A (GB)
Title: Process for purifying coke-oven and like gases
IPC: C10K1/32
Filed: 1934-12-21
Abstract: Coke oven or like gas is passed through active carbon until condensible constituents liquefying more readily than ethane an ethylene, such as propylene, propane and their higher normally gaseous homologues begin to occur in quantities of about 15 per cent in the issuing gas.  The adsorbed constituents are then recovered from the carbon yielding a motor fuel, while the residual gas may be used directly for heating or power or may be subjected to chemical conversion in known manner.  Specification 385,257 is referred to.
Patent GB-809268-A (GB)
Title: Improvements in or relating to turbines
IPC: F01D5/08
Filed: 1956-11-30
Abstract: 809,268. Cooling turbine rotor blades. MASCHINENFABRIK OERLIKON. Nov. 30, 1956 [Dec. 31, 1955], No. 36725/56. Class 110(3). In a turbine in which the roots of the rotor blades are cooled by a coolant which subsequently discharges into the working fluid stream, a throttling constriction is provided in the flow path of the coolant between the blade roots and the point of discharge into the working fluid, the constriction being formed between two rows of rotor blades and a shroud ring carried by a set of stator blades disposed between the rotor blades. The throttling constriction communicates with a channel formed below the roots of the rotor blades through slits formed in or between the roots of the rotor blades. In Fig. 1, two rows of rotor blades 5 are mounted by their roots 6 in axial slots formed at the periphery of the rotor 1, an intermediate spacer 16 being disposed in each slot between the roots of the two blades mounted therein and end rings 14, 15 being disposed adjacent the exposed faces of the blade roots. An axial passage 9 is formed between the lower surfaces of the blade roots 6, the spacer 16 and the bottom of the blademounting slot and cooling fluid such as air is supplied thereto through an opening 20 in the ring 14. The cooling air passes from the passage 9 through slits 8 formed in the blade roots into ducts 10 formed between the lower surfaces of the abutting blade platforms and the outer surfaces of the rotor stubs 1A, the cooling air then entering the annular space formed between the stator blade shroud ring 12 and the spacer 16. The cooling air discharges into the working fluid stream through the annular constrictions 13 formed between the stator blade shroud ring 12 and the blade roots 6. In a second embodiment, the blade roots 24 are mounted in circumferential grooves formed in the rotor 21, annular passages 25 being provided between the lower surfaces of the blade roots and of the blade-mounting grooves. Cooling air is supplied to the passages 25 through radial ducts 27 and flows through slits 23 formed in the blade roots to the annular spaces 26, 19 formed between the rotor blade platforms, the stator blade shroud rings 12 and the surface of the rotor. The cooling air then discharges through annular constrictions 13 into the working fluid stream. Instead of being provided with slits 23, the blade roots of adjacent blades may be spaced apart circumferentially to provide radial passages for the flow of cooling air.
Patent GB-788131-A (GB)
Title: Improvements relating to television receivers
IPC: H04N5/08
Filed: 1955-12-22
Abstract: 788,131. Television. GENERAL ELECTRIC CO. Dec. 22, 1955 [Dec. 28, 1954], No. 36729/55. Class 40 (3). [Also in Group XL (c)] A television receiver circuit functioning both to provide an A.G.C. voltage and separate out the synchronizing pulse component comprises a pentagrid valve 40, the video component with the synchronizing pulses positive being D.C. coupled from detector 14 via amplifier 19 to the second control grid 45 and A.C. coupled via capacitor 81 to the first control grid 43, whilst the anode receives positive gating pulses during the horizontal synchronizing intervals via transformer 51 from the sweep circuits. Capacitor 81 and resistor 60 provide self-biasing action to " clamp " the peaks of the synchronizing pulses at the first control grid whereby the electron flow from the cathode takes place only during synchronizing pulses and is independent of the amplitude of the video signal. Synchronizing pulse outputs are then produced at both the anode grid 44 and the anode 41. The first comprises the synchronizing signal and is applied to the sweep circuits, whilst the second, which varies in amplitude in accordance with the level of the video signal at grid 45, is integrated in network 53-56 to provide the A.G.C. voltage. In a modification (not illustrated in detail), gating is dispensed with, a continuous operating potential is applied to the anode and the D.C. supplies rearranged so that the A.G.C. line is brought to a suitable reference potential.
Patent GB-938235-A (GB)
Title: Improvements in apparatus for cooling or heating metal strip
IPC: C21D9/56
Filed: 1960-10-26
Abstract: 938,235. Cooling or heating metal strip. GENERAL ELECTRIC CO. Oct. 26, 1960 [Nov. 2, 1959], No. 36754/60. Class 72. [Also in Group XII] Metal strip is cooled or heated whilst moving through an enclosed housing by directing a gaseous heat exchange medium against it in a direction at right angles to the direction of the strip's movement so that the medium is deflected to flow in two oppositely directed streams, preferably of velocity at least equal to e.g. 1¢ to 2¢ times the speed of the strip which may be 1500 ft/min. along and parallel to the strip, the streams being passed past heat exchange means and directed back against the strip. Figs. 1 and 2 are side and end elevational views of an exemplary cooling tower containing a controlled atmosphere and having a plurality of rolls 12 and 14, driven by electric motors 16, for passing metal strip 18 through the housing 10 in a vertical multi-pass fashion, and incorporating atmosphere recirculating cooling units 30 constructed for directing a cooled gas stream under pressure against the moving strip as in the above method. The cooling units are supported on each of the opposite sides of the housing in a plurality of horizontally spaced vertical rows each between two adjacent passes of the strip, the two opposite sets being in staggered relationship (see Fig. 2). Each cooling unit 30 comprises (see Fig. 4) a casing 32 provided with a rectangular mounting flange 34 and divided longitudinally into a central plenum chamber 44 with a narrow elongaged slot 48 and a pair of inlet chambers 46, each provided with openings 54, disposed on opposite sides of the plenum chamber. An additional slot 48 is provided on the opposite face of the casing in the case of those units located between adjacent passes of strip; the length of the slot is preferably at least the width of the strip. A pair of heat exchangers 56 comprising finned tubes are supported alongside the inlet openings 54 so as to cool the atmosphere passing through the inlet chambers and into the plenum chamber via the axial inlet 68; the atmosphere is circulated by a fan 66 driven by an electric motor 62 which is readily accessible for maintenance (see Fig. 2). Thus improvement in heat transfer coefficient is effected by providing a high velocity flow of cooled gas longitudinally over the strip and divided into a plurality of zones spaced vertically along each pass.
Patent GB-994913-A (GB)
Title: Corrosion resistant alloys
IPC: C22C14/00
Filed: 1962-09-27
Abstract: An alloy has the following composition: Ta 35-70%, b  stabilizing element or elements 2-20%, the balance being titanium.  Up to 15% of Nb may also be present as long as the Ti content is at least 7.5%. The b  stabilizing component may be one or more of V, Mo, Cr, Mn, Fe, W, Zr, Ni, Co, Cu, Si and Be, and up to 2.5% Al may also be added. Up to 0.3% oxygen may also be present.  The alloys may be heat treated at 716-830  DEG C. followed by air cooling and heating at 260-430  DEG C.
Patent GB-1174224-A (GB)
Title: Improvements in and relating to Strapping Apparatus
IPC: B65B13/18
Filed: 1968-08-01
Abstract: 1,174,224. Baling press. SIGNODE CORP. 1 Aug., 1968 [30 Aug., 1967], No. 36817/68. Heading B5F. [Also in Divisions B8 and E2] In a closed chamber baling press, of the type in which strapping is fed over feed mechanisms F around the bale and back into sealer mechanisms S where the overlapping ends are sealed together by jaws J, each sealer mechanism is releasably mounted upon each feed mechanism so that the two may be separated and the jaws easily inspected in the event of entanglement of the strapping. As shown in the Figure, each feed unit comprises co-operating urethane faced feed and back up wheels 19 and 20 respectively, the wheels being mounted in brackets 17 fixed to a transverse mounting bar 16 extending along one side of the chamber of the press. A sealer mechanism is mounted upon the top plate 17H of each bracket by a pair of lock mecha- - nisms 29 each of which comprises an upwardly spring biased shaft 32 rotatably mounted in corresponding bores in the housing 24 of the sealer unit. The lower ends of each shaft are arranged, when the shafts have been depressed, to project through bores in the plate 17H, -and carry transverse lock pins adapted, upon rotation of the shafts by handles 34, to engage a notched keeper plate 31 located on the underside of the plate 17H. A hook 27 is mounted to the rear of bar 16 and the floor of housing 24 is provided with a ledge 28. In the event of any entangling or the like the locking units are raised to free the sealer mechanism and the mechanism slid backwards along plate 17H until ledge 28 engages hook 27, at which point the sealer mechanism pivots about the hook to the easily accessible vertical position shown in phantom lines.
Patent GB-860425-A (GB)
Title: Weighing conveyors
IPC: G01G11/04
Filed: 1958-11-17
Abstract: 860,425. Electric weighing - machines. STREETER-AMET CO. Nov. 17, 1958, No. 36873/58. Class 40 (1). [Also in Group XVIII]. In a device for determining the rate of flow and total flow of material on a belt conveyer, the instantaneous weight on the belt is measured by a differential transformer whose primary winding is fed from a tachogenerator geared to the belt drive, whereby the output signal from the transformer is proportional to the product of speed and loading, and may be fed to a counter to obtain the integrated flow of material. As shown (Fig. 1) an endless belt 10 running on end rollers 12, 14, is supported intermediate the ends by a roller set 16 mounted on a cross-bar 18 to which is bolted a transverse leaf-spring 21 (Fig. 3) fitted at its outer ends with bearings 22 which rest on a fixed cross-bar 24. Centrally mounted on bar 24 is a differential transformer 30 whose armature is attached by a stem 33 to the bar 18, so that the output voltage from the transformer 30 is proportional to the displacement of the armature produced by the load on the belt. The primary of the transformer is fed by a tachogenerator 45 geared to the roller 14, so that the output voltage is proportional to the product of speed and instantaneous belt loading, which may be indicated directly or fed to an integrator driving a counter indicating the total weight carried. The crossbar 18 is supported by a hinged parallelogram type brace comprising struts 36, 38 (Fig. 4) which prevents the spring 21 from responding to other than bending forces, e.g. the effects of conveyer belt tension.
Patent GB-974669-A (GB)
Title: Improvements in or relating to the production of high density compacts
Inventor: MARSHALL ALEC FRANK
IPC: B22F3/17
Filed: 1961-10-13
Abstract: <PICT:0974669/C6-C7/1> In a process for the production of high density compacts, low density compacts are subjected to cyclic compaction with at least one punch, each punch having part of its pressing surface parallel to, and part inclined or curved away from, the surface of the compact, the compact being moved relative to the punch between each compaction.  The angle which the inclined pressing surface makes with the surface of the compact is preferably at least 3 degrees and desirably between 5 degrees and 13 degrees, and if two punches, Fig. 1, are used, the angled portion of the second punch is preferably more inclined than that of the first.  The low density compact may be prepared by any conventional method, but is preferably formed by cyclic compaction of a powder using an angled punch, the powder being subjected to ultrasonic vibrations while being fed into the container.  The process may be used for metal powders, e.g. a nickel powder, a nickel-chromium-iron austenitic stainless steel powder or an alloy steel powder in which case the metal is preferably heated to a temperature above that required for recrystallization of the metal.  If the metal readily oxidizes, the compact may be subjected to heat treatment in a reducing or neutral atmosphere or a vacuum. The process may also be applied to ceramic compositions or cermets.
Patent GB-807998-A (GB)
Title: Improvements in or relating to electrical gas-discharge tube counting circuits
Inventor: WARD HUGH JENNINGS
IPC: H03K23/82
Filed: 1955-12-23
Abstract: 807,998. Electronic counting-apparatus. STANDARD TELEPHONES & CABLES Ltd. Dec. 23, 1955, No. 36883/55. Class 106 (1). [Also in Group XL (c)] A multi-stable state counting circuit comprises a chain of cold cathode gas discharge tubes with connections between adjacent devices such that when a first device of a pair is discharging the impedance of the trigger electrode to cathode gap of the second of the pair is low so that when a pulse is applied to the second tube it is fired. Fig. 1 shows a counting chain comprising cold cathode gas tubes V1 to V4 in which if initially tube V1 is conducting rectifier MR1 is in its lowimpedance condition. Negative pulses are applied alternately to leads IP2, IP1 so that when the first negative pulse appears on input lead IP2 from a low-impedance source not shown, the impedance of the trigger electrode to cathode gap of tube V2 is low as both rectifiers MR1, MR2 are in a conducting condition; tube V2 thus fires and V1 is extinguished by the voltage drop across the common anode resistor R1, thus the condition of conductivity is progressed along the gas tube counting chain. The chain may be driven by a bi-stable trigger circuit, output pulses from which are applied to terminals IP1, IP2 via cathode follower circuits. Alternatively the circuit may be driven by applying positive pulses alternately to IP1 and IP2 or IP2 may be connected to earth and the pulse train to be counted applied as alternate positive and negative pulses to terminal IP1. A pair of tubes may be connected in a base bistable circuit (see Group XL (c)). In a modification shown in Fig. 3 the tubes are alternately connected into three groups and three staggered pulse trains are used to drive the counter, the tubes may be connected to form a closed ring. If a tube fires other than the one which is immediately adjacent the tube which has already fired the high-impedance control electrode/cathode path reduces the trigger current to such an extent that the main gap does not fire.