baber/WOPTO huggingface dataset:
Patent GB-684066-A (GB)
Title: Improvements in or relating to electromagnetic rapping devices and systems
IPC: B03C3/76
Filed: 1951-04-16
Abstract: 684,066. Electromagnetic vibrators. RESEARCH CORPORATION. April 16, 1951 [May 26, 1950], No. 8807/51. Class 35. An electromagnetic vibrator for cleaning an electrode of an electric precipitator comprises a magnetic plunger sliding in a sealed tubular casing attached to the electrode, so that, on energization with impulses of current, the plunger strikes the sealed ends of the tube which transmits the shock to the electrode. In the form shown, a magnetic plunger 33 having slots 34 to reduce losses slides in a non-magnetic tube 25 under the action of a coil 27. The casing 21 and the ends 18 and 36 are of mild steel so that when a pulse of current passes through the coil, the plunger jumps up, and striking the top member 36, rebounds to strike the bottom end 18. The end members are faced with non-magnetic material 24 and 35 to prevent sticking. The impulses are generated by the discharge circuit shown in Fig. 2, in which a condenser 40 is charged through a resistance 39 from a D.C. supply, and discharged through vibrator coils 27a-27e energized in turn by a selector switch 42. The thyratron 44 is normally biased negative by battery 45, but momentary closure of switch 49 charges the grid positive and initiates the discharge. The impulse shape may be modified by connecting a parallel resonant circuit in series with the condenser 40. In the form shown in Fig. 1, the shock is transmitted by a rod 15, but the device may be secured directly above or below the electrode so that the plunger strikes it directly. The vibrator body may be mounted horizontally on the electrode, in which case the return motion is produced either by a spring or by a second coil energized continuously or with alternate impulses. When it is desired to vibrate electrodes at elevated potentials, the vibrator, which is attached to the electrode, may be separated from the pulse generating circuit by means of a transformer having a highly insulated secondary winding. Instead of using a transformer, the coil itself may be insulated from the plunger and electrode by means of an insulating tube as shown in Fig. 13, in which the device is mounted on an earthed base 117 which supports the coil 126 while the plunger 125 travels in a tubular insulator 118 joined to the electrode 116 by an elastic metal bellows 123. In a modification, the part of the tube carrying the coil is of insulating material, while the rest is metal.
Patent GB-766980-A (GB)
Title: Improvements in and relating to laminated magnetic cores
IPC: H01F27/245
Filed: 1955-03-25
Abstract: 766,980. Transformers and inductors. GENERAL ELECTRIC CO. March 25, 1955 [March 29, 1954], No. 8827/55. Class 38 (2). A three-legged laminated core is composed of magnetic strips with butt joints between the ends of the leg and yoke portions staggered in adjacent layers of laminations, each of the leg and yoke portions comprising a part of parallelly arranged strips with abutting longitudinal edges. Lamination layer 11 comprises leg and yoke portions wherein the joints between all three by members and the yoke members form generally Z-shaped joints, as at 12, 13, 14. Lamination layer 15 is similar to lamination layer 11 but is turned through 180 degrees. Lamination layer 16 is similar to lamination layer 11 at the joints between the outer leg portions and the yoke portions only; the joints between the inner leg and the yoke portions forming generally L-shaped joints. Lamination layer 17 is similar to lamination layer 16 but is turned through 180 degrees. When a core is assembled of a plurality of such layers the joints in the successive layers are thereby staggered. In another embodiment all four layers are similar to each other, each layer having the upper half as in layer 11 and the lower half as in layer 16. When assembling the core the layers are rotated with respect to each other, first 180 degrees about a horizontal axis, then 180 degrees about a vertical axis and again through 180 degrees about a horizontal axis thus giving a four layer pattern. In all the lamination layers only six different strip lengths are required. If desired the width of the yoke strips may be made different from that of the leg strips.
Patent GB-670347-A (GB)
Title: Selector switch brushes
IPC: H01H9/56
Filed: 1949-04-01
Abstract: 670,347. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd. April 1, 1949 [June 25, 1948], No. 8907/49. Class 40 (iv). A wiper carriage for a selector switch comprises a metal guide insulated from the wiper and spaced from it so that when the guide makes contact with the terminal pins the wiper does not and vice versa. As shown, the wipers 13 are mounted on either side of the insulating spacer 1 each wiper having metal guide members 25 before and after it mounted on the spacer. Each guide member is indented at 30 so as to make contact with a terminal pin, but only when the wiper 9 is not itself in contact with a pin. Each wiper comprises two triangular portions 12, 13 whose apices carry indented portions 7, 9 for contacting the feeder bar 8 and the terminal pins 10 respectively. The central portion of each wiper comprises wing portions 16, 17 for locating the wiper in the slot 2 in the spacer, each wing being waisted so that it makes contact with its partner through the slot, the whole being assembled by rivets 20, 21 passing through the wings and through metal bars 22 whose ends press against the spacer to ensure rigidity of the structure. Specifications 591,523 and 649,185 are referred to.
Patent GB-1488868-A (GB)
Title: Vehicles
IPC: B26B29/00
Filed: 1974-02-28
Abstract: 1488868 Vehicles; amphibious vehicles A KEMENY K M KEMENY and T G SCHICK 28 Feb 1974 [14 March 1973 22 Jan 1974] 9020/74 Headings B7A and B7H A wheel system, for attachment to a land, sea, air or rail vehicle, comprising a frame or platform 7 adapted to be attached to the vehicle and rotatably mounting pairs of chain wheels 15 at each end, axles 11 or 21 fixed between chains 12, 13 or 22 trained about the chain wheels, and roller 5 or 24 rotatably mounted on the axles and contacting the undersurface of the platform or frame as the axles pass thereunder on rotation of the chain wheels. In one arrangement, Fig. 1, 2, the rollers 5 act as ground wheels, whilst in another embodiment (Fig. 2A, not shown) the axles are extended at the sides of the platform and carry ground wheels (5A) of greater diameter than rollers 5. In a form suitable for sea vehicles the rollers 24 are mounted in pairs at each end of each axle 21 and flotation chambers 23 are fixed to the axles.
Patent GB-590098-A (GB)
Title: Improvements in and relating to boring tool holders with micrometric adjustment
IPC: B23B29/034
Filed: 1945-04-11
Abstract: 590,098. Boring-heads. MARTY, P. April 11, 1945, No. 9053. [Class 83 (iii)] A boring-head providing micrometric adjustment of a tool 9 comprises a rotatable adjusting ring 3 with external graduations 12 co-operating with a fixed mark 13 on a body 1 and having an internal screw-thread 4 engaging a threaded portion at the top of a coupling member 5. The coupling member slides in a shallow groove 6 in the periphery of the body 1 and an extension 7 at the lower end engages a lateral slot 8 in the tool 9. The tool fits in a sloping diametrical slot 9<1> in the body and is secured in the adjusted position by a screw 14. A recess 10 in the body permits the necessary movement of the coupling-member and a cap 11 is fitted over the lower end of the body.
Patent GB-401572-A (GB)
Title: Improvements in or relating to corsets and the like
IPC: A41C1/08
Filed: 1933-03-25
Abstract: 401,572. Corsets. GOZNA, F. W., and EMPIRE CORSET CO., Ltd., 88, Newman Street, Oxford Street, London. March 25, 1933, No. 9063. [Class 141.] Corsets of the type laced at the rear are provided with an elastic band a overlapping the lower ends of the back lacing steels and connected to the corset sections c. Connection may be made by means of additional sections b. In a modification two elastic sections crossing one another at an angle may be employed to replace the band a.
Patent GB-258500-A (GB)
Title: Improvements in step ladders
IPC: E06C7/42
Filed: 1926-04-06
Abstract: 2.58,500. Olson, D. O. April 6, 1926. Ladders. - A step ladder of the kind having the steps collaosable into the plane of the front frame has the frame formed of parallel bars 1, 2 to which the steps are hinged, and the rear stays 11 are fixed to actuating links 8 pivoted to the bars, so that for any inclination of the stays the steps are horizontal and the rear stay may be used on either side of the ladder. A locking lever 15 is pivoted centrally to the end of one step and has a pawl to coact with a toothed quadrant 13 so that the ladder may be locked at any inclination.
Patent GB-125805-A (GB)
Title: Separable Couplings for Artificial Limb Joints and for other purposes.
Inventor: DORRANCE DAVID WILLIAMSON
IPC: A61F2/58
Filed: 1918-06-03
Abstract: 125,805. Dorrance, D. W. June 3, 1918. Limbs, artificial. - A separable coupling for connecting parts of artificial limbs and for other purposes comprises a male member 10 which carries a headed bolt 12, and a lock-nut 17 having segmental projections 18. A disk 14 carrying a resilient gasket 16 surrounds the member 10 and has an interior flange 15 which abuts against a shoulder 13. The female member comprises a web 19 projecting inward from a collar 20 and formed with notches 21, 22 of which the notch 21 is the greater and is provided with a bent tongue 23 to engage either of the projections 18 after their insertion in the notches 21, 22 to enable the nut 17 to be tightened by rotation of the member 10. The member 10 may be formed on a base-plate attached to an artificial hand. In a modification, Figs. 9 and 11, a threaded stud 29 surrounded by a gasket enclosed between plates 30, 31 carries a nut 35 with a squared inner end 36 which engages in a slot 38, 39 in a cap plate 37, the squared part of the nut engaging the part 39 of the slot and enabling the nut to be tightened by rotation of the parts. A rim 40 prevents the accidental disengagement of the parts when tightened.
Patent GB-312223-A (GB)
Title: Improvements in moulds for type line casting machines
IPC: B41B11/52
Filed: 1929-03-22
Abstract: 312,223. Intertype Corporation, (Assignees of Sperry, S. E.). May 22, 1928, [Convention date]. Moulds for typebar-making machines. -In moulds for machines of the kind described in Specification 14582/90, the mould parts lie on each other, and are pressed together by wedges, which engage inclined surfaces on the mould-wheel, and are pressed apart by a spring. The lower and upper mould-members 10, 11, Fig. 6, and the locking-wedges 12 are accommodated in a pocket or opening 5 in the mould-wheel, the upper wall of the pocket being formed with inclined surfaces 8 The lower mould-member 10 is seated on the lower wall 6 of the pocket, and is held in place by screws 14, Fig. 3, which have right and left hand threads, and can be rotated by means of angular wrenchreceiving portions, accommodated in recesses 16 in the wall 6. The member 10 is prevented from forward and rearward displacement by the engagement of lugs 17 between faces 7a on the end walls of the mould-pocket and flanges 18 secured to, or formed integral with, the mould-wheel. The member 10 can be removed by lifting it, so that the lugs 17 can pass over the flanges 18. The upper mould-member 11 is exchangeable, and has a recess 19 to form the mould-cavity. Lugs 20 on the member 11 are received between the faces 7a and the flanges 18. The locking- wedges 12 are spread apart by a spring 23, and are guided by a flange 9, Fig. 3, on the mouldwheel, and by pins engaging in grooves 26 in the wedges. The wedges are moved towards each other, in order to relax the pressure on the mould in the ejecting position, by projections on the knife-block.
Patent GB-255387-A (GB)
Title: An electric device for flashlight photography
IPC: F21K5/12
Filed: 1926-04-09
Abstract: 255,387. Vallem, A. H. O. April 9,1926. Magnesium powder lamps. - Magnesium powder is ignited for flashlight photography by means of a device comprising a box containing a dry battery 8 which is connected through a switch to spring-pressed contact studs 22, 23 arranged in the box top 4 so as to engage successively with metal sockets 52 which are connected by crossed ignition wires 53 and are fixed on a slide 50 movable, over a projecting edge 28 and between guide-strips 30, 31 fixed to the top 4. When the switch is closed the wires connecting the sockets 52 contacting with the studs 22 are heated to incandescence and ignite the magnesium powder placed on a centrally apertured metal plate 37 which is screwed with an underplate 36 of glass or other insulating material to the top 4. The plate 37 is provided with a flanged edge. The battery box has a hinged bottom 5 secured to the front wall 1 by a clasp 7 and is fitted with two springs 16, 17 engaging spring contacts 9 on the battery 8. One spring 17 is connected directly to the stud 23 and the other spring 16 and the stud 22 are connected to sockets 10, 11 on the front wall 1 adapted to receive contact pins connected by leads 13 to a distant press switch 14. The switch 14 may alternatively be arranged in a handle on the bottom 5. Coloured marks affected by the heat of the combustion may be placed below the wires 53 so as to enable thewires used to be distinguished easily from those unused. A lid may be provided above the plate- 37. The slide 50 is formed with an extension unprovided with sockets 52 to facilitate its insertion between the guide-strips 30, 31.
Patent GB-1460312-A (GB)
Title: Method of and apparatus for burning hydrocarbon fuels with air
IPC: F23C13/00
Filed: 1974-03-01
Abstract: 1460312 Combustible gas TOKYO GAS CO Ltd 1 March 1974 [1 March 1973 (2)] 9403/74 Heading C5E [Also in Divisions F1 and F4] A method of burning hydrocarbon fuels in which the production of nitrogen oxides is reduced comprises a primary combustion step in which a mixture of the fuel with less than 70% of the amount of air theoretically required for complete combustion is burned, a primary combustion completing step in which the products of the primary combustion step are reacted in the presence of a catalyst to produce a gaseous mixture comprising mainly hydrogen and carbon monoxide but substantially no hydrocarbons as combustible components, and a secondary combustion step in which the gaseous mixture is burned with additional air to complete the combustion. The catalyst used in the primary combustion completing step can be a nickel catalyst and the secondary combustion step can also be carried out using a nickel catalyst. The gases leaving the primary combustion completing step can be cooled by using them in a heat absorbing process prior to the secondary combustion step. A combustion unit is provided in which a hydrocarbon fuel 12 is partially burned in admixture with a portion of the air supply 10 and the mixture produced is passed through a catalyst containing primary combustion completing chamber 2; the gas produced is then burned in a secondary combustion chamber 4 with a further portion of the air supply 10 and excess air is mixed with the combustion products in the dilution chamber 6; the hot gas produced is suitable for driving a gas turbine.
Patent GB-700845-A (GB)
Title: New or improved ventilating means for large-capacity vehicles
IPC: B60H1/26
Filed: 1952-04-15
Abstract: 700,845. Ventilating vehicles. DAIMLER-BENZ AKT.-GES. April 15, 1952 [April 13, 1951], No. 9468/51. Class 137 Ventilating means for vehicles, particularly motor omnibuses, comprises a pair of flat, broad, air supply ducts 7, 7<SP>1</SP> with forwardly disposed air intakes 9, 9' and side delivery openings 18 or 20 for delivering two broad thin streams of air towards one another and towards a central gangway 6. The top walls of the supply ducts 7, 7' are formed by the inner roof lining 11, the other walls consisting of bent lengths 12, Fig. 3, or 12<SP>1</SP>, Fig. 4, of material made e.g. of metal or plastic &c. The outer edges of the lengths 12, 12' are detachably secured at 13 to beams 14 of the roof. The inner rolled edge 17 of the duct 7, Fig. 3, is held spaced from the roof 11 by angle brackets 16 to provide a narrow slot 18 which extends the full length of the duct and the inner edge 17 of the duct 7', Fig. 4. is detachably secured at 15 to the roof lining 11. a continuous series of long narrow slots 20 directed towards the lining 11 being formed in the part 19 of the "Z"-shaped section at the inner edge of the length 12. The ducts are closed at their rear ends at 8 and are provided with throttles 23 at their front ends having operating levers 22 to control the quantity of air entering the ducts. Discharge of used air from the vehicle can be effected e.g. through a suction scoop 24 and through side windows having horizontally displaceable air extraction panes.
Patent GB-125410-A (GB)
Title: Improvements in or relating to the Manufacture of Hydrogen.
Inventor: MAXTED EDWARD BRADFORD
IPC: C01B3/06
Filed: 1916-07-05
Abstract: 125,410. Maxted, E. B. July 5, 1916. Hydrogen.-In preparing hydrogen by the method of alternate reduction and oxidation of an oxide such as iron oxide, a small amount of alkali, such as oxide, hydroxide, or carbonate of sodium or potassium is added to the oxide in order to increase the rate at which the reduction can be effected. Copper or its compounds may also be added.
Patent GB-617411-A (GB)
Title: New or improved grinding machine
IPC: B24B5/18
Filed: 1945-03-23
Abstract: 617,411. Centreless grinders. POTTS, F. C. (Landis Tool Co.). March 23, 1945, No. 9514/47. Divided out of 617,329. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 4, 1945.] [Class 60] A centreless grinding machine has a control wheel and a grinding wheel with opposed peripheral faces, one of said wheels being movable toward the other for a grinding feed, a work rest for supporting a work-piece in operative relation to said opposed peripheral faces, a dressing tool permanently mounted on said work rest and means for effecting a traversing movement of said control wheel past said dressing tool, but excluding a centreless grinding machine as claimed in Specification 601,030. In a centreless grinder, as described in Specification 617,329, the control wheel is dressed by a diamond 121, Fig. 2, mounted in a block 120 on work guides 112, the wheel being reciprocated past the tool by means of a hydraulically operated piston and driven at a higher speed than when used in the grinding operation, a common control being provided for the traversing motion and the higher speed drive. The grinding wheel is dressed by an adjustable diamond 102, Fig. 1, reciprocated across the wheel by a hydraulically operated piston 104 in a cylinder 105. Specification 617,412 also is referred to.
Patent GB-1195899-A (GB)
Title: Improvements in or relating to Synchronising Arrangements in Digital Communications Systems.
Inventor: WEST NORMAN
IPC: H04L7/00
Filed: 1967-11-21
Abstract: 1,195,899. Automatic phase control; digital transmission systems. MINISTER OF TECHNOLOGY. 7 Nov., 1968 [21 Nov., 1967; 28 Feb., 1968], Nos. 52999/67 and 9613/68. Headings H3A and H4P. [Also in Division G4] A clock pulse generator which controls readout of a number of buffer stores, each fed by and synchronized with a respective digital data channel, has its repetition frequency adjusted in accordance with a signal representing the average of the duration between read-in and read-out of a particular cell in each of the stores, in order to bring that duration towards half the store cycle time. This prevents read-in from catching up with read-out, and vice versa, and causes the digit-rate on each output channel to be the average of the rates on the input channels. The serial data on n inputs 1, Fig. 1, is passed via write gates 3 to respective stores 5, the gates 3 being enabled by sequential pulses from counters 4 controlled by circuits 2 synchronized by the received data. Clock pulses from oscillator 14 are divided down approximately to bit-rate by counter 15, the resulting pulses feeding counter 9 which enables the readgates 6, data then passing from stores 5 to the respective outputs 7. Bi-stables 8 are each set when a certain one of the write gates 3 is enabled. The resulting duration significant signals are averaged at 10, 11 and feed a threshold unit 12 which temporarily alters the division factor of counter 15 from one to another of two preset values, so altering the rate of read-out of data. Each circuit 2 develops clock pulses either by use of a differentiator and tuned circuit or by use of an oscillator controlled by a phase detector fed by the oscillator output and the received data. Circuit 2 also includes a threshold unit which, if the deceived data is sufficiently strong, allows the developed clock pulses to pass to the counter 4. On the other hand, if the data is weak the counter 4 is instead fed by pulses from divider 15. Divider 15 consists of counter 33 and counter 31, 32, Fig. 3, the latter being fed by oscillator 14. Gate 35 is enabled by threshold unit 12 if the divided down pulses on line 16 are of higher repetition frequency than the average frequency of the pulses from the units 2. Thus, when counter 31, 32 reaches step 4, gate 35 passes a pulse via gate 38, if enabled, to switch bi-stable 40. This causes unit 41 to return counter 31, 32 to step 3, resulting in a slight reduction in frequency of the pulses on line 16. Similarly, gate 34 is enabled if oscillator 14 is running too slowly, so that when counter 31, 32 reaches step 2 it is advanced to step 3 by unit 41, resulting in a slight increase in frequency. Gates 37, 38 are enabled alternately at a rate very much less than that of oscillator 14 by alternate half cycles from multivibrator 36, and the circuit is such that, during each half cycle, only the first pulse from. the gates 34 or 35 causes the counter to advance or retard.