baber/WOPTO huggingface dataset:
Patent GB-170456-A (GB)
Title: Improvements in or relating to metal reinforcement for concrete or like products
IPC: B28B23/14
Filed: 1920-08-25
Abstract: 170,456. Amphlett, H. P., and Hume Pipe & Concrete Construction Co., Ltd. Aug. 25, 1920. Making metal fabrics; cooli,xg; formers.-Cylindrical and other hollow reinforcements for concrete pipes and the like are made by winding wire helically upon a rotatable former comprising independent circumferential sections movable radially. Curved sections 1 with notched clamps 24a to guide the wire are bolted on bars 7 which are carried bv radial arms 10 adjustably pivoted to spiders 8 on a shaft 2. The shaft is mounted in a pivoted bearing 4 and in a bearing 3 movable axially. The ends of the shaft 2 carry slidable spiders Ila, llb to which are adjustably pivoted links 13 connected either directly to the bars 7 or to crank levers 15. Sets of sections 1 form cylinders of different diameters. The spiders are controlled by a hand-wheel 19 and by stops 16, 18. The ends 21 of the crank levers 15 project through the bars 7 and form pegs around which longitudinal wires are turned. The pegs are withdrawn as the sections 1 are moved inwards. Longitudinal wires may be woven in the helix or be added subsequently. For the woven form, notched clamps 24a are fixed to the edges of the sections and position the windings 26, 27 so that longitudinal wires 29 may be threaded alternatelv over and under them. The upper halves of the clamps are held in place by temporary fastenings and the wires 29 then threaded in place. For the unwoven form, the notches in the clamp are all of the same depth. A second helix returning on the first may be wound during the return journey of the drum 30 by making the clamps adjustable radially and actuating them by a face cam. Tapered and other shaped reinforcements may be made by adjustment ot the sections 1.
Patent GB-1049168-A (GB)
Title: Improvements in and relating to boxes
IPC: B65D5/02
Filed: 1964-06-16
Abstract: 1,049,168. Packaging percussion caps and toy pistols, G. FERRI and J. MARINAI. June 16, 1964 [June 17, 1963], No. 24810/64. Heading F3A. A box 1 having a recess 2 to house a toy pistol and a second recess to receive one or more sheets of percussion caps C is made from a single cardboard blank bent into an elongated shape and two openings are cut in one side wall, the cut material being pressed inwards around the larger opening to form the partition 5 and base 5a of recess 3. Material cut to form the recess 3 forms a cover flap for this recess. Both recesses are further covered by flaps 6, 7.
Patent GB-663773-A (GB)
Title: Improvements in or relating to ink feed mechanisms for printing presses
IPC: B41F31/14
Filed: 1948-09-23
Abstract: 663,773. Printing - machines. GOSS PRINTING PRESS CO., Ltd. (Goss Printing Press Co.). Sept. 23, 1948, No. 24911/48. Class 100 (ii). Inking-apparatus.-In a rotary printing-press wherein the inking apparatus is mounted on a carriage 20, Fig. 1, movable to inoperative position, the apparatus includes a messenger roller 17 carried by an oscillating frame 23, Fig. 2, and a member 30 is provided which can be engaged with the frame 23 so as to hold the roller 17 out of contact with the duct-roller 15 e.g. when the carriage 20 is in inoperative position, the member 30 being actuated by devices controlled electrically in accordance with the movements of the carriage 20. The distributing and transfer rollers 18a ... 18q can thus continue to be driven without receiving an excess of ink. The frame 23 is oscillated by a cam 26 during normal operation of the press, but when the member 30 is moved about its pivot 31 by a double-acting air motor 33 into the position shown in Fig. 2, it swings the frame out of range 'of the cam so that the roller 17 is out of contact with the duct-roller 15. Admission of compressed air from a pipe 38 to either end of the motor 33 is controlled by a valve 36, which is itself controlled by two solenoid-actuated valves 40, 41, one of which is open to exhaust while the other is, closed. The solenoids are connected to the mains through a switch 43, Fig. 5, which is spring-urged to the position shown in full line wherein the valve 41 is opened, air is admitted to the left-hand side of the motor piston and the right-hand side is open to exhaust, and the member 30 is moved to operative position, this occurring when the carriage 20 is in inoperative position. When the carriage is moved to operative position, it swings the switch 43 to the dotted line position, Fig. 5, and the valve 40 is opened so that the member 30 is moved to inoperative position. As shown applied to a multi-colour machine employing three plate cylinders 11, 12, 13, Fig. 1, having identical inking-mechanisms each with its own tripping-member 30 and associated operating- devices, three sets of solenoid-operated valves 40, 41, 50, 51, and 60, 61, Fig. 5, are provided, one for each member 30. The solenoids are normally connected so that the members 30 are actuated simultaneously, but a button-operated double-pole double-throw switch 44, 54, 64, is connected in the circuit of each pair of solenoids so that each messenger roller can be operated normally or tripped independently of the others as may be required for cleaning, changing the ink, or inking the rollers preparatory to starting printing.
Patent GB-227178-A (GB)
Title: Improvements in amusement and game apparatus
IPC: B62M1/14
Filed: 1923-10-08
Abstract: 227,178. Compton, A. P. A., and Davey, F. W. Oct. 8, 1923. Railways for recreation; amusement apparatus, details of. - A passenger vehicle for use on an upwardly inclining or undulating track is provided with forward. driving gear operated by the passenger and with automatically operating means which render the driving-mechanism inoperative should the vehicle commence to run in a backward direction owing to the inability of the passenger to keep the vehicle moving in a forward direction. The inclination of the track may increase towards the end, as shown at a' in Fig. 8, to render the progress of the vehicle more difficult, and several tracks may be placed side by side. In the vehicle shown in Fig. 4, the driving is effected by means of a chain e connecting a lever f and a return-spring e<2>, and passing over a free-wheel e<1> on the rear axle d. A third axle g is supported by pivoted links g<2> and carries a pair of wheels g', so that when the links g<2> are in an approximately vertical position, the driving-wheels d<1> are lifted clear of the track, and the vehicle is free to move backwards. A free-wheel k or a member to slide on the track is carried by a lever h<1> pivotally mounted on the links g<2> and is pressed against the track by means of a spring h<3> to cause the links g<2> to move into their vertical position, or the movement may be effected by proportioning the members g<2> the wheel h being omitted. The free backward movement may be effected by the mechanism shown in Figs. 7 and 8 the drive being taken through the free-wheel j and a clutch k. Two ratchet-wheels l, m, whose teeth face in opposite directions, are keyed to the axle d. Pawls l<1>, m<1>, engaging the ratchet wheels l, m alternately, are pivotally mounted on a casing n rotatably mounted on the axle d, and arms l<2>, m<2> engage the pawls through springs. Fixed cams l<3>, m<3> engage the arms l<2>, m<2> so that at every reversal of rotation of the shaft d, the casing n is given a partial rotation according to the pawl in engagement with the ratchet wheels. The rotating casing operates the clutch k through a spirally slotted sleeve, a quickthread screw, or like device. Pairs of rollers i<1> guide the vehicle by engagement with a flang of the rail a, and a brake-block i<2> engages a pivoted joist at the starting point of the track. The vehicles may be assisted up steep parts of the track by an endless belt or chain, which may be fitted with projecting pins, or which may take the place of the rails of the running track. An electric indicator at the top of the track may display the number of the first car to reach the top.
Patent GB-758455-A (GB)
Title: Improvements in or relating to electric circuits for discharge lamps
IPC: H05B41/232
Filed: 1953-09-10
Abstract: 758,455. Supply and switching systems for space-discharge lamps. BOIN, R., and BOIN (nee DOMS), G. Sept. 10, 1953 [Sept. 10, 1952], No. 25114/53. Class 38 (4). An electrical circuit for use with an A.C. supply of predetermined frequency comprises a discharge lamp L having two preheatable cathodes 1, 2 directly mutually interconnected electrically in series by the secondary coil S of a transformer, and a condenser C, the transformer primary coil P, the condenser C, and the parallel combination of the lamp L and secondary coil S all being serially connected across the supply and the inductance and capacitance of the circuit being such that the circuit is substantially in resonance when the lamp is non- conductive. The primary and secondary coils may be loosely magnetically coupled by the interposition of one or two magnetic shunts F, the primary coil may be divided into two parts P, PI, and the condenser and primary coil parts may be elsewhere in the circuit but not in the lamp/secondary coil combination. There may be a further lamp serially connected with lamp L and supplied by a further secondary coil connected directly across it, or the coil S may have coupled to it cathode heating secondary windings which supply the cathodes of a further lamp which, in series with a saturable inductance, is shunted across the entire circuit. A supply and switching control circuit for one or more groups of three lamps is also described.
Patent GB-1332553-A (GB)
Title: Emergency power unit
IPC: B64D41/00
Filed: 1971-04-19
Abstract: 1332553 Hydraulic reciprocating pumps and motors SUNDSTRAND CORP 19 April 1971 [13 April 1970] 25148/71 Heading F1A [Also in Division H2] An emergency power unit comprises an hydraulic unit 14 and an electric unit 12 coupled together by a shaft 34, the hydraulic unit being operable as a motor to drive the electrical unit as a generator and the electric unit being operable as a motor to drive the hydraulic unit as a pump. Thus the power unit can be switched in an emergency to deliver hydraulic or electric power to either the main hydraulic system 44 or the main electric system (not shown) of e. g. an aircraft. The hydraulic unit 14 is an axial piston machine having a swash plate 38 adjustable against a spring bias 40 by a cylinder 29. The swash plate angle is automatically adjustable under the control of a speed governor 26 or a valve 32 depending on the position of a selector valve 67. When delivering electric power the generator speed is kept constant, the governor 26 either delivering fluid to the cylinder 29 from a high pressure line 16, 60, 61 or exhausting fluid from the cylinder through a line 68, 65, 69. When delivering hydraulic power, the high pressure line 16 becomes a pump delivery line, the pressure therein being maintained constant by the valve 32 acting automatically to supply or exhaust the cylinder 29.
Patent GB-660751-A (GB)
Title: Improvements in and relating to electric control switches
Inventor: BITLER JOHN WILLIAM
IPC: H01H19/56
Filed: 1949-09-30
Abstract: 660,751. Make-and-break switches, mechanical. MINSTER MACHINE CO. Sept. 30, 1949. No. 25240/49. Class 38 (v). A circuit is completed between a pair of contact brushes 35, 36 for an adjustable proportion of each revolution of a shaft 20, through a pair of rings 25, 26 having, respectively, conducting segments 28, 31 and non-conducting segments 29, 32. Each conducting segment extends through 180 degrees and the two segments are electrically connected through their abutting sides. The rings are clamped against an enlargement 21 on the shaft 20 by a friction locking nut 22 and hence, by slackening the latter, they may be relatively rotated to vary the proportion of closure from substantially zero when the segments 28, 31 are side by side, to approximately one half of the shaft revolution when they slightly overlap. A further pair of brushes, 35, 36 and rings may be provided as shewn whereby a further circuit may be controlled in desired relation to the first circuit. In a modification (Fig. 5, not shewn), associated rings 25, 26 are separated. by an insulating spacer and connected together by a pair of contact brushes mounted in the spacer and respectively pressing against the opposed sides of the segments 28, 31..
Patent GB-859044-A (GB)
Title: Improvements in or relating to electrical phase-shifting transformers
Inventor: ANGOLD AUGUSTUS WILLIAM
IPC: H02M5/12
Filed: 1956-08-17
Abstract: 859,044. Regulating switches. UNITED GAS INDUSTRIES Ltd. Aug. 16, 1957 [Aug. 17, 1956], No. 25279/56. Class 38 (5). [Also in Group XXXV] A three-phase phase shifting transformer has a winding arrangement with taps connected to points whose voltages are regularly displaced in phase over 360 degrees and a selector switch by which any three taps spaced mutually at 120 degrees may be simultaneously selected, fine adjustment over the phase range between adjacent taps being provided by three variable auto-transformers. Fig. 7 shows transformer windings fed at taps 1, 9, 17 from three-phase mains 66 having taps numbered 1 to 24 and a neutral centrepoint. The taps are connected to similarly-numbered contacts on three similar selector switches with groups of rotatable contacts such as 1R, 2R, 3R, respectively spaced at 120 degrees. Contacts 1R and 2R normally connect two adjacent contacts through slip-rings 19, 20 to the opposite ends of one of the auto-transformers 22, 23, 24 from movable contacts from which the phase-displaced outputs 67 are taken. Breaking of the output connections whilst a tapping switch is being rotated to the next pair of contacts is prevented by the connection of one of the taps through moving- contact 3R, slip-ring 21 and resistor 25 to one end of the associated auto - transformer. As shown in Fig. 1, the selector switches are formed by three plates 12, 13, 14 bearing the tapping contacts and the sliprings over which travel respectively angularly-spaced segmental arms 26, 27, 28 which are mounted on a spindle 16 and carry appropriately-spaced spring-biased contact-plungers 31. A pointer (not shown) mounted on the end of spindle 16, moves over a fixed graduated dial 5 to show the contact position selected. A similarly graduated dial 6 mounted on disc 45 is moved with the moving contacts of the autotransformer 22, 23, 24 through spring strip and lever connection 54 by a knob (not shown) on spindle 8 to indicate the value of the fine adjustment. Spindle 16 carrying the segmental arms is located angularly by the cooperation of spring-pressed insulating rollers 38 at the ends of insulating arms 36 carried by the spindle with extensions of the tapping contacts or intermediate pins. Alternatively the contacting extensions may be insulated when the rollers are metal. The selector switches are mounted on four pillars with upper and lower frame plates 10, 15 carrying the bearings of spindle 16. On plate 10 are also mounted three pillars 42 carrying frame-plates 43 and a shaft 8 with the auto-transformers 22, 23, 24. By a knob on shaft 9 mounted on plate 10 annular scale 7 is rotated about scales 5 and 6 through friction gearing 63, 64, 48. This scale is graduated in degrees and cosine values. The whole arrangement which may be used for testing without meters is enclosed in a casing and mounted on castors, Figs. 3, 4.(not shown).
Patent GB-1113946-A (GB)
Title: Fluid control valve construction
IPC: F16K31/30
Filed: 1965-06-16
Abstract: 1,113,946. Valves. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. 16 June, 1965 [23 Sept., 1964], No. 25416/65. Heading F2V. A float-operated valve comprises a stationary ported disc 47, and a ported disc 62 which is rotated by a float (34), Fig. 3 (not shown), acting through an arm 35 and shaft 70, to control flow from a pipe 31 and chamber 41, to a chamber 55 and outlet (57), (33), Fig. 1 (not shown). A resilient annular seal 44 is disposed between the disc 47 and valve housing 36 to seal the shaft 70 from the fluid passing through the valve and to urge the members 47 and 62 into contact. The discs 47 and 62 are formed from a ceramic material and the valve housing is formed from a plastics material.
Patent GB-386039-A (GB)
Title: Improvements in or relating to shrouded screw propellers
IPC: B63H1/16
Filed: 1931-09-10
Abstract: 386,039. Screw fans. ADAMCIKAS, M. and MASSERA, G., Astor House, Aldwych, London. Sept. 10, 1931, No. 25436. [Class 110 (i).] A screw fan with relative large hub is provided with a shroud 9 which is shaped inside so that the outer profile of the hub and the inner profile of the shroud are in axial cross section similar to a Venturi nozzle the vane space being enlarged towards the outlet relatively both to the throat and also to the inlet of the Venturi formation. The fan works in a close-fitting casing 10. When the fan is employed for cooling an electromotor it is fixed on the shaft 11 adjacent to the end bracket 15 in which the shaft works in roller bearings and the outlet of the fan is in communication with the gap between the armature and the stator.
Patent GB-911952-A (GB)
Title: Improvements in cable-braking apparatus
IPC: B66D3/18
Filed: 1960-07-21
Abstract: 911,952. One-way acting brakes. VICKERS AIRCRAFT HOLDINGS Ltd., and ARIS, A. S. June 20, 1961 [July 21, 1960], No 25468/60. Class 103 (1). [Also in Groups XXVI and XXX] A spring-loaded reel 11, Fig. 2, for taking up slack in lifting cables 12, is provided with a disc brake 24, 25 which is effective during pay-out only to assist in supporting a load being lifted, and limit the rate of lowering. The brake assembly is mounted on an annulus 27 attached to a disc 16 and is rotatable freely in the winding-up direction on a stud 17 and fixed central boss 32 but is prevented from rotating in the unwinding direction by means of an expanding coil spring friction clutch 33. The rotatable disc-brake member 24 is keyed on its outer periphery to the drum 11 and the brake pressure is permanently applied through springs 29 adjustably loaded through a nut 31 threaded on the annulus 27. The clutch may be released for withdrawal of the cables &c. by rotation of a central member 34 supporting the clutch spring 33 and having holes 341 for rotation by a tommy-bar.
Patent GB-716723-A (GB)
Title: Improvements in or relating to dry rectifiers and processes for the production thereof
IPC: H01L29/00
Filed: 1951-10-31
Abstract: 716,723. Dry plate rectifiers. SIEMENSSCHUCKERTWERKE AKT.-GES. Oct. 31, 1951, [May 30, 1949; June 10, 1949.] No. 25497/51. Drawings to Specification. Class 37. A selenium rectifier of flexible pattern with a base or carrier electrode in the form of a thin foil having a thickness of not more than 0.01 mm. is made by a process in which the base or carrier electrode is deposited as a coating on a support plate and subsequently detached therefrom. The preferred range of thickness of the foil is from 0.001 mm. up to 0.01 mm. According to a first embodiment a metal plate roughened by sand-blasting is treated with nigrosin solution and a thin nickel layer is then applied, electrolytically or by vapourisation, and this is followed by the selenium layer and counter electrode layer. The required rectifier is then obtained by separating- or detaching the nickel layer from the metal plate; the nigrosin solution enables the latter to be effected. The process may be modified to include the step of applying selenium, before the selenium layer proper, and heating to transform the nickel layer wholly or partially into a nickel-selenide layer. Bismuth may be used instead of nickel. In a second embodiment an aluminium support plate is nickel-plated by metal exchange in a hot nickel salt bath whereby a porous, rough layer of nickel is formed on the aluminium plate. The selenium layer is then applied and a tin-cadmiumthallium alloy coating sprayed on as counter electrode. The thus far processed unit is left for a few days under moist air conditions so that the nickel layer becomes coated with aluminium oxide or aluminium. hydroxide and may be detached from the aluminium plate. In a third embodiment an iron support plate is nickel plated by galvanization and oxidized whereafter a further nickel layer is applied to the oxidized nickel layer. The selenium and counter electrode layers are then applied in known manner and the unit is subjected to further heating at 200 ‹C.. whereby the second nickel layer becomes automatically detachable from the oxidized metal layer. The procedure may be modified to include several oxidized nickel layers before the final nickel layer to constitute the foil is applied. A thin tin-cadmium layer may be applied as a strengthening layer on the nickel side of the foil and also to provide good contact-making with several rectifiers superposed and united to form a column or stack. Forming units by cutting from a large piece. The base or support plate may be a large sheet so that the detached unit is of large area whereby from this small rectifier units may be cut to the required size. Flexibility applications and cooling. Rectifiers according to the invention may be bent to any desired shape without detrimental effect. For example they may be mounted or wrapped around a water-cooled tube so that load capacity may be increased. Subsequent to shaping from the flat form an additional layer of metal may be applied.
Patent GB-947777-A (GB)
Title: Improvements in or relating to electrical control circuits including timing circuitsincluding timing circuits
IPC: H03K17/28
Filed: 1960-07-22
Abstract: 947,777. Timing circuits. GENERAL ELECTRIC CO. Ltd., and F. E. RALPH. June 7,1961 [June 22, 1960], No. 25603/60. Heading G3T. [Also in Division H2] A resistance-capacity timing and control circuit comprises two timing circuits 1 and 2 each including a relay A, B and the associated switch A1, B1 and a capacity 8, 9 across which is connected a potentiometer 12,13 having several tapping points connected to a selection switch. A switch C1 of a relay C in a starting circuit 3 selectively connects the timing circuits to a D.C. supply. The starting circuit also includes switches A2, B2 and C2 and the relay C also controls switches C3, C4 in an electric circuit to be controlled. On reception of a starting signal on the line 25 the relay C is energized to close switches C3, C4 for a time interval determined by the timing circuit 1 and the time interval between successive energizations of the relay C is determined by the timing circuit 2.