baber/WOPTO huggingface dataset:
Patent GB-834126-A (GB)
Title: Method of, and a machine for, the production of spiral grooves and the like in workpieces
IPC: B24B19/02
Filed: 1956-11-30
Abstract: 834,126. Copy-milling. JONES & SHIPMAN Ltd., A. A., and HOULDSWORTH, J. Nov. 8, 1957 [Nov. 30, 1956], No. 36685/56. Class 83 (3). [Also in Groups XXIII, XXXIV and XXXV] In producing at least one spiral-groove in a workpiece, the work is rotated about its axis relatively to a tool for cutting the groove, such rotation being imparted from a master-former which has at least one spiral-groove therein, is coupled to the work for longitudinal displacement and rotation therewith, and is rotated during its longitudinal travel by an amount corresponding to the lead of the spiral-groove but varied by a predetermined increment by auxiliary rotation of means acting thereon. The production of screw-threads and spiralbrooches is mentioned. The work 4 is rotatably mounted in bearings 5, 6 on a table 1 hydraulically-reciprocated on the machine-frame 2 relatively to a milling-cutter 3; the work is coupled through an indexing device 8 to a masterformer 7 supported by the device 8 and a bearing 17 on the table. Threaded on the former 7 is a nut 9 rotatable in preloaded rolling-bearings 10, 11 on the frame 2, and connected by steel-tapes 13 to a slide 14 movable in the frame 2 transversely to the travel of table 1. The slide 14 carries a roller 15 .co-operating with a bar 16 on the table 1, the obliquity of the bar relative to travel of the table being adjustable. To eliminate backlash on reversal of the table, a D.C. shuntwound electric motor 32 is coupled, directly or through gearing, to the former; a strain. gauge 19 is applied to one tape 13, and the e.m.f. induced is amplified and applied to control the armature current to the motor 32, whereby the strain in the tape is kept constant and the flanks of the nut and former are kept in contact at the same pressure for both directions of travel of the table. The bearings 10, 11 may be loaded by fluid-pressure exerted in a chamber 27, Fig. 5, on a piston 28 applied against one side of the bearing 11, the reaction of the fluid-pressure on the end of the chamber 27 being resisted by reaction-rods 29 extended beyond the bearing 10 and attached to the machine frame. The fluid-pressure is controlled by a valve mechanism according to the direction of travel of table 1, so as to keep the thrust on the bearing 10 constant for both directions of travel. The pressures for the two directions of travel may be preset with the aid of an indicator 30 contacting a flange 20 on the nut 9 so as to show any axial movement thereof; alternatively, the indicator may be replaced by a strain-gauge controlling a valve or valves to adjust the fluid-pressure. When the lead of the former 7 is short, the motor 32, Fig. 4, is supplied with electric power so that, when the table 1 is moving leftwards, it rotates the former in the direction of arrow E at a continuous speed; backlash is reduced by a
Patent GB-843948-A (GB)
Title: Improvements in and relating to an engine fuel injection pump
IPC: G05D13/08
Filed: 1956-12-04
Abstract: 843,948. Centrifugal governors. ROOSA, V. D. Dec. 4, 1956, No. 37000/56. Class 57. The output of a fuel injection pump comprising a rotor 12 having a pumping portion 13 and a distributer portion is controlled by a governor comprising centrifugal weights 39 acting on a sleeve 42 axially slidably mounted on an extension 30 on the rotor. The weights are of trapezoidal shape and mounted to pivot about the corners 44 in separate pockets 38 of an inner cage 35 housed in an outer cage 29 secured to the rotor, the cages being drivingly connected by a friction disc 37. A pivoted governor arm 50 loaded by a spring 60 abuts a flange 53 on the outer end of the sleeve 42 whilst fingers 41 on the weights contact a flange 43 on the inner end of the sleeve. In operation, movement of the sleeve 42 by the weights 38 is transmitted to the arm 50 which is connected by linkage (not shown) to a valve controlling the pump output. The loading of the spring 60 may be varied by a lever 61. Specification 656,906 is referred to.
Patent GB-1369421-A (GB)
Title: Firing signal transmission control for inverter circuits
IPC: H02P3/18
Filed: 1972-08-09
Abstract: 1369421 Controlling inverters GENERAL ELECTRIC CO 9 Aug 1972 [16 Aug 1971] 37090/72 Heading H2F In an inverter comprising at least one pair of series-connected controlled rectifiers 35, 36 connected across a D.C. supply 26, 28 and quenched by means of a series LC circuit 46, 48, controlled by a pair of commutating controlled rectifiers 38, 40 mis-commutation is prevented by ensuring that when the inverter is started, one of the commutation rectifiers 38, 40 is triggered first so as to charge the commutating capacitor 48. On stopping the inverter, the trigger signals are arranged to continue until immediately after the firing of one of the commutating controlled rectifiers 38, 40 so that neither of the main controlled rectifiers 35, 36 is left conducting. The system described is a variable speed drive for a three-phase motor 16, the other two phases being supplied by units 13, 14, identical to unit 12. Resistors 54, 56 may be included to ensure initial charging of commutating capacitor 48. Current transformers 49 may be included to monitor the charging of the commutating capacitor 48 as described in Specification 1,362,850. Diodes 42, 44 provide regeneration to the D.C. side 26, 28. The voltage on the D.C. side may be monitored and the triggering suspended in the event of under- or over-voltage as described in Application 37088/72. A control signal generator 60 has a reference input 72 and one or more feedback signals 74 to establish the frequency and voltage of the supply required for the motor 16. Logic systems, block diagrams of which are given in Figs. 2, 3, 5, 6 (not shown) and comprising large numbers of gates provide the required function for the control signal generator 60 and the firing signal transmission control system 70.
Patent GB-1510710-A (GB)
Title: Superconducting dynamo-electric machines
IPC: H02K55/04
Filed: 1976-12-09
Abstract: 1510710 Superconducting machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 9 Dec 1976 [9 Sept 1975] 37112/75 Heading H2A A machine comprises a rotor 3 with an inner part 5 and an outer part 4, the part 5 carrying a superconducting D.C. winding 6 and the part 4 being formed at least partly of a magnetic alloy steel forging. The part 4 is also of such dimensions that it absorbs no more than 20% of the total flux generated by the winding 6. Upwards of 80% of the total flux is therefore available to a non-superconducting A.C. stator winding 2.
Patent GB-800453-A (GB)
Title: Improvements in or relating to shipping unit
IPC: B65D19/36
Filed: 1954-12-23
Abstract: 800,453. Lifting devices for engagement by fork trucks. AMERICAN CYANAMID CO. Dec. 23, 1954 [Dec. 24, 1953], No. 37164/54. Addition to 786,963. Class 78 (4). The sling of the parent Specification is used to carry a stack of packages narrower than the sling to form a unit for engagement by the forks of a lift truck in which the forks can swing inwardly against the sides of the stacked packages when the sling and packages are lifted by the truck. The sling comprises a sheet of paper, burlap, resin-impregnated cloth or other material folded as shown and glued or stapled at 5, Fig. 1, not shown, to form loops 3, 4 for engagement by the forks of the truck. Temporary or permanent liners which may be circular metal tubes or may be of triangular or rectangular section, may be inserted in the loops 3, 4. The web may be reinforced by strips of material or by wires or cords, by double folds formed in the sheet, or by folding over the edges of the sheet. The loops may be formed by folding over and gluing the ends of the sheet to either the upper or the lower surface of the web.
Patent GB-622504-A (GB)
Title: Esters of ª‡-formylphenaceturic acid
IPC: C07C233/45
Filed: 1946-12-17
Abstract: An alkali metal salt of an alkyl ester of a -formylphenaceturic acid is prepared by reacting an alkyl ester of phenaceturic acid, an alkyl formate and an alkali metal alkoxide in an inert, anhydrous, organic solvent, e.g. benzene or ether.  The reaction may be effected at a temperature not exceeding about 50 DEG  C.  The free ester of a -formylphenaceturic acid is obtained by treating the alkali metal salt with an acid.  Alkali metal alkoxides may be sodium alkoxides, e.g. sodium methoxide or ethoxide.  Suitable alkyl formates are methyl or ethyl formate.  In examples, the preparation of methyl- and ethyl-a -formylphenaceturate and their sodium salts is described.
Patent GB-522979-A (GB)
Title: Improvements in linings for air-raid shelters, underground roadways, tunnels and like constructions
IPC: E04H9/12
Filed: 1938-12-22
Abstract: 522,979. Tunnels, air - raid shelters &c. RICHARDS, F. Dec. 22, 1938, No. 37258. [Class 85] In a lining for air raid shelters, tunnels, and like constructions comprising spaced arched rib members .and sheet-like lagging members extending between consecutive rib members, flanges formed on the lagging members are arranged substantially at right angles to the run of the lagging and fit into corresponding grooves in the rib members. In Figs. 2 and 3, metal arched rib members are of channel section with their side flanges 2 directed outwardly, and the concrete lagging members 3 have at their ends beads 4 entering between the flanges 2, sealing means being inserted in a - cavity 5 between the beads. Each leg of the members 1 has a sole plate 7, which supports the lowest lagging members and may be of channel section and fixed to the leg; struts extend between opposite sole plates. In Fig. 4, the lagging members, with strengthening ribs 10, have recesses 22 to receive the flanges 2 to give a. more or less flush inner surface, and the edges of the beads 4 are chamfered to receive the sealing means. In Fig. 5, the arch and lagging members are of reinforced concrete. In Fig. 6, the flanges 2 of the arch members 1 are inturned, and the lagging members, which may be arched as at 12, have their edges bent to fit therewith. In another form, the arch members are of H-section and the lagging members have inwardly or outwardly turned flanges on either or both their upper or lower edges. The upper and lower edges of the lagging members may be grooved to receive packing material, or they may be roughened or serrated to provide a key for cement &c. While earth &c. is being filled in behind the lagging members, the latter may be held by straps or clips, or by washers on bolts extending through the arch members. The arch members may be in sections bolted together directly or by the aid of fish plates. Various tunnel &c. sections are shown, Specification 418,122 is referred to.
Patent GB-1516180-A (GB)
Title: Disc brake
IPC: F16D55/226
Filed: 1975-09-10
Abstract: 1516180 Disc brakes AKEBONO BRAKE INDUSTRY CO Ltd 10 Sept 1975 37321/75 Heading F2E One of the relatively sliding surfaces of the caliper and fixed member of a disc brake comprises a sheet of corrosion resistant material. As shown, projections 14 on the caliper 2 are supported on guide springs 4 anchored in the fixed member 1 and have sloping upper surfaces. Stainless steel inserts 13 of the form shown in Fig. 3 cover the sloping surfaces and the adjacent vertical surfaces of the caliper and slidably engage nickel plated guides 6 which are mounted on the fixed member. Inserts 13 are retained on the caliper by lugs 20, 21 and, preferably, adhesive.
Patent GB-937754-A (GB)
Title: Improvements in and relating to devices for delivering mixtures of two liquids
IPC: G05D11/13
Filed: 1959-11-05
Abstract: 937,754. Mixing liquids in proportions, A. CHIANTELASSA. Nov. 5, 1959 [Nov. 6, 1958], No. 37568/59. Addition to 898,355. Class 86. [Also in Group XIX] In a modification of the liquid mixture metering device of the parent Specification the gear cone controls the proportions of the mixture, a gear co-operating with the gear cone being connected to a pump for one of the constituents, output shaft rotations for the two constituents being added together to drive the gear cone. As shown, a gear cone 22 arranged to co-operate with a plurality of take-off gears (not shown) which control price indicating apparatus as described in the parent Specification, has its input shaft K driven by a differential 92 which sums the movements of the output shafts of pumps 88, 96 for first and second liquids (such as oil and petrol) to be mixed. A further gear meshing with the cone 22 is carried by a plate 61 set vertically in accordance with the desired liquid ratio, and drives a shaft 61a connected by gearing 89, 89<SP>1</SP> to the output shaft of the pump 88. The pumps 88, 96 are thus controlled to supply the two liquids in the desired ratio.
Patent GB-974974-A (GB)
Title: Cathode-grid assembly for electron guns
IPC: H01J29/48
Filed: 1961-10-20
Abstract: 974,974. Electron beam apparatus. RADIO CORPORATION OF AMERICA. Oct. 20, 1961 [Nov. 14, 1960], No. 37743/61. Heading H1D. A cathode-grid assembly for an electron gun comprises a tubular cathode 32, closed at one 'end, and extending through an aperture in a ceramic washer 44, a support sleeve 48 coaxially surrounding and fixed to the cathode and brazed to a metallized surface portion 52 of washer 44, and a grid cup 30 coaxially surrounding, and fixed to washer 44 by a mounting sleeve 46. As shown, the grid cup 30 is spotwelded to a mounting sleeve 46 brazed to an annular metallized area 50 of washer 44. Annular groove 54 and ridge 56 on the washer reduce the possibility of electrical leakage between grid and cathode. Support sleeve 48 has only a short section 62 in contact with the washer to minimize thermal conduction between these two parts. A colour television tube may comprise three electron guns each including a cathode-grid assembly as shown, a screen grid, a focusing electrode, and an accelerating electrode fixed to a dynamic convergence cage, Fig. 1 (not shown).
Patent GB-1030297-A (GB)
Title: Poultry feed compositions
IPC: A23K1/175
Filed: 1964-09-16
Abstract: 1,030,297. Poultry feed. AMERICAN CYANAMID CO. Sept. 16, 1964 [Oct. 2, 1963], No. 37893/64. Heading A2B. A feed for growing chicks and turkey poults is prepared by supplementing poultry feed with a source of calcium, a source of phosphorus, a tetracycline antibiotic, notably chlorotetracycline, and, as a potentiating agent for the tetracycline antibiotic, a sulphate of a cation carrying a single positive charge such sulphate being exemplified by sodium sulphate, sodium bisulphate, potassium sulphate, potassium bisulphate, ammonium sulphate, ammonium acid sulphate, sulphuric acid, trimethyl ammonium sulphate and dimethyl ammonium sulphate. Substances specified include dicalcium phosphate, calcium carbonate, calcium sulphate, phosphoric acid, tricalcium phosphate, sodium dihydrogen phosphate, tetracycline, chlorotetracycline, oxytetracycline, dimethylchlorotetracycline, chlorotetracycline hydrochloride, fish meal, bone meal, meat meal, ground yellow corn, soybean oil meal, yeast, magnesium sulphate, choline chloride, corn gluten meal, edible oil, dehydrated alfalfa meal, stabilized fat, limestone, sodium chloride and vitamins.
Patent GB-380154-A (GB)
Abstract: 380,154. Closed solid-fuel stoves. WALTHER. A., Lockstedter Lager, Holstein, Germany. June 15, 1931, No. 17355. [Class 126.] Air supplying for combustion. - Secondary air is supplied to the combustion space 3 through serpentine or zig-zag passages 1 in the walls, the delivery ends of the passages being inclined to the faces of the walls, as seen both in plan and elevation, so that a gyratory movement will be imparted to the gases. The portions 2 of the passages may be of serpentine form, and the delivery orifices are protected by an overhang of the wall.
Patent GB-303160-A (GB)
Title: Improvements in or relating to finned tubing
IPC: B21C37/26
Filed: 1928-12-24
Abstract: 303,160. Bundy, H. W. Dec. 30, 1927, [Convention date]. Tubes.-A, helical fin is applied to a preformed tube 1, Fig. 1, to form a finned tube for radiators &c. capable of being bent easily, by winding fin stock on to the tube with sufficient tightness to collapse partially the body of the 'tube so as to form a helical seating groove 10 for the said stock. The fin stock is preferably angular in cross-section, the leg 2 thereof forming a spiral band around the tube and the leg 3 forming the helical fin. The tube 1 is received in a winding: head 4 and the fin stock is fed thereto by pressure rolls 5, 6 having oppositely disposed surfaces which engage the fin leg 3, whila the winding head also includes a lead die 7 having a slanting or cam surfaces 8 which engages with the fin and sets the pitch thereof. The pitch of the helical fin may be arranged so that adjacent convolutions of the leg 2 abut against each other, Fig. 2, or overlap, Fig. 4.
Patent GB-1079742-A (GB)
Title: Apparatus for depositing sliver in a stationary can
IPC: B65H54/80
Filed: 1964-09-17
Abstract: 1,079,742. Coiling sliver MASCHINENFABRIK RIETER A.G. Sept. 17, 1964 [Sept. 20, 1963], No. 38029/64. Heading D1F. Apparatus for depositing sliver into stationary cans comprises a wheel 3 rotatably mounted in frame 1, a turn plate 5 having a sliver channel 7, and eccentrically and rotatably placed in the wheel so that its axis of rotation moves circularly upon rotation of the wheel, and calender rollers 9 and drive means 22 therefore which are supported by a ring 8 so operatively connected to the turn plate that the calender rollers have a circular movement corresponding to that of the axis of the turn plate. An eccentric bushing 4 having an eccentric aperture 5<1> for the turn plate is adjustably fixed to wheel 3 so that the distance between the axis of rotation of plate 5 and that of wheel 3 may be adjusted. Flange 6 of the bushing is rotatable in ring 8 which is connected to the frame 1 by means 14-16, Fig. 2 (not shown), so that it can not rotate, but can move translatorily in a circle. Ring 8 also supports lid 12 having sliver guide 13, and means 18-21 connecting main drive shaft 17 to shaft 22. Turn plate 5 is rotated by toothed belt from gear wheel 20<1> on shaft 20. In a second embodiment, Figs. 3-5 (not shown), there are two rotatable wheels, each with their own turn plates &c., but sharing a single lid, with the support rings (8) being adjustably connected and supporting the calenders rollers, drive means therefore, and the lid.
Patent GB-837792-A (GB)
Title: Improvements in or relating to a device for steering or manoeuvering vessels
IPC: B63H25/46
Filed: 1958-11-26
Abstract: 837,792. Steering and manouvring ships by variable pitch propellers. KARLSTADS MEKANISKA WERKSTAD A.B. Nov. 26, 1958 [Nov. 30, 1957], No. 38051/68. Class 114. A device for steering a ship comprises a variable pitch propeller 21 which is placed in a tunnel 11 athwart the hull and the horizontal shaft 23 of which is journalled in bearings 25, 27 and 31 carried by struts 16, 17, 19 and 20, 22, 24 located on opposite sides of the propeller and radially arranged in the tunnel. The struts have a streamlined profile and may be turned to form guide vanes for the water flowing through the tunnel. The pitch of the blades 39 is adjusted by a piston 43 actuated by pressure oil supplied from a pump 73 through conduits 65, 67 in the strut 22 to a sleeve 77 and thence via concentric tubes 87, 89 to the cylinder 41. A wire 91 attached to the sleeve 77 is connected to an indicator to cause same to indicate the pitch of the blades. The rotary casing 35 united with the propeller 21, and casings 29, 33 supported by said struts, are attached to a drum 12. By removing rings 13, 14 the drum can be drawn axially out of the tunnel 11 and hoisted up so that the devices attached thereto can be overhauled without docking the ship. The propeller shaft 23 is driven by bevel gears 51, 53 and a shaft 55 extending horizontally in the axial direction of the ship within the strut 17 via couplings 62, 64 attached to the shaft of a motor 57 which also drives a pump 59 for supplying oil through conduits 66, 68 to lubricate the gears 51, 53. The couplings 62, 64 facilitate dismantling when the drum 12 is to be withdrawn. When the device is to be used the motor 57 and motor 75 driving pump 73 are started, the former quickly attaining speed as the blades will be in the neutral position. The control valve is then actuated so that the pump 73 delivers pressure oil to the side of the piston 43 to give the required angle of pitch of the blades (in magnitude and direction), the propeller then driving water through the tunnel to cause the ship to swing in the desired direction. Specification 493,416 is referred to.
Patent GB-819439-A (GB)
Title: Improvements in or relating to cocking and firing mechanism of breech-loading guns
IPC: F41A19/54
Filed: 1956-12-14
Abstract: 819,439. Firing mechanisms. PICOLLO, L. Dec. 14, 1956 [June 13, 1956], No. 38179/56. Class 119 A multi-barrelled drop-down gun has a striker-spring 5 in a movable tubular housing 1 which is guided at one end by a pin 13 on the panel moving in a groove 13 in the housing and has a pair of lugs 3 at the other end connected by a cross pin 4 which passes through a triangular slot cut in a member 8 the member 8 is pivoted at one end to a rod 6 passing through the spring 5 and at the other to a hammer 10 in such a way that the pin 4 occupies different corners of the triangular slot depending on whether the mechanism is in the open, cocked or fired position. The hammer 10 is retained in the cocked position by a toe 15 on a sear 14 urged by a spring 16 and co-operates with a firing pin 18 that is connected by a web to a cylindrical striker guide 19. When the barrels are dropped about their hinge 12, the pin 13 carries forward the housing 1 and by pulling on the member 8, causes the pin 4 to move down to the front lower corner of the triangular slot, thus cocking the hammer 10. Closing the weapon compresses the spring 6 and presses on the member 8 causing the pin 4 to move to the rear corner of the triangular slot, cocking the mechanism for firing as in Fig. 2. On opening the gun after firing, the front end of the rod 6 co-operates with a detent 24 to release the extractor pin 22, so as to eject the used cartridge case. The invention can be applied to multi-barrelled guns with either "over and under" or with "side by side" barrels.
Patent GB-1195215-A (GB)
Title: A Latch Means for Cartons.
Inventor: REIFERS RICHARD FRANCIS
IPC: B65D85/32
Filed: 1967-08-21
Abstract: 1,195,215. Cartons. DIAMOND INTERNATIONAL CORP. 21 Aug., 1967, No. 38368/67. Heading B8P. A carton moulded from plastics, pulp, paper, &c. comprises a tray 12 and a lid 14, a flap 24 hinged along one wall of the tray having a lock tab 30 with deformable wings 32 which can be inserted through a small hole 48 in the lid. As shown, the tray 12 and the lid 14 are hinged together at one side, and the tray has moulded pockets to receive eggs. The lock tab 30 can be inserted through the hole 48 by a hooked tool (60), Fig. 7 (not shown), or manually. Additional holes (247 &c.), Fig. 6 (not shown), in the side wall of the lid may be provided for viewing and ventilation. In a modification, Fig. 5 (not shown), the lid and tray are separate, instead of hinged together, and flaps (123, 124) along two opposite walls of the tray each have a lock tab (129, 130) for insertion through corresponding holes in the lid. In another form, dovetail-shaped lock tabs (330 &c.), Fig. 8 (not shown), along a hinged flap (324) on the tray, are inserted through holes (347 &c.) along one side of a hinged lid. In another construction, the lock tabs (431), Fig. 9 (not shown), are set into the top edge of a hinged flap (424) which extends up to meet and support the top of the lid. In yet another embodiment, ventilation and observation holes (547, 549, 551), Figs. 10, 11 (not shown), through opposite walls of a lid, coincide with slots (540, 541, 542) along the tops of flaps (524) formed also with lock tabs (532 &c.) and upwards extensions (543 &c.) engaging the inside top of the lid. Each carton may be so formed as to be separable into two parts. The look tabs &c. permit nesting of the cartons.