baber/WOPTO huggingface dataset:
Patent GB-701782-A (GB)
Title: Magnetron oscillators
Inventor: WRIGHT PETER MAURICE
IPC: H01J25/55
Filed: 1949-02-11
Abstract: 701,782. Magnetrons. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 10, 1950 [Feb. 11, 1949], No. 3856/49. Class 39(1) A magnetron comprises a central anode 1 surrounded by a ring cathode 5, the anode constituting a cylindrical cavity resonator which is excited in the H 01  mode through slots 4. As shown, the cavity resonator comprises three sections each a halfwavelength long at the fundamental frequency of oscillation. Each slot is less than a half-wavelength long and is preferably just over a quarter wavelength long. The upper end section of the resonator houses a tuning plunger 13, and the lower communicates through slots 15 with the output waveguide 14. The ring cathode 6 is of channel-form and is backed by ribs 11, which form with the cathode portion 9, a low impedance filter to prevent the leakage of R.F. energy around the edges of the cathode.
Patent GB-564765-A (GB)
Title: Improvements in power transmission gear
IPC: B60W30/18
Filed: 1943-03-11
Abstract: 564,765. Reverse gearing. FOULGER, A. E. March 11, 1943, No. 3960. [Class 80 (ii)] Relates to reverse gearing in which an engine shaft 13 drives in opposite directions shafts 12, 19, arranged side by side in converging relationship, an intermediate shaft 24 being connected by a universal joint 25 to a driven shaft 10 and being movable by a lever 32 so that its other end may be coupled to either of the shafts 12, 19. According to the invention, the lever 32 is mechanically connected to a clutch 5 between the engine shaft 13 and the shaft 12. As shown, the shafts 12, 19 are interconnected by gears 18, 22 and have coupling members 23 at one end. The shaft 24 has a coupling member 26 at one end and is slidably mounted at the other end in the joint 25. A spring 27 urges the shaft 24 towards the couplings 23. A sleeve 28 slidable on the shaft 24 has slight clearance from a collar 29 thereon and is connected by a yoke 31 to the operating lever 32. The latter is mounted on a ring pivoted on trunnions 43 in a frame 40 which is pivoted on trunnions 44 in fixed bearings. A lever 45 on a trunnion 44 is connected by links 46, 47 to the clutch 5. A slotted guide plate 51 is provided for the lever 32. Thus, on operation of the lever 32, the clutch 5 is disengaged before and re-engaged after the coupling 23, 26.
Patent GB-879906-A (GB)
Title: Improvements in stencil printing machines
IPC: B41F15/08
Filed: 1958-02-07
Abstract: 879,906. Stencilling-apparatus. VIDAL, I. S. Feb. 7, 1958 [Feb. 11, 1957], No. 4037/58. Class 100(2) In stencilling-apparatus wherein the stencil is carried by a wheeled frame or slide 4 which is traversed over the fabric &c. on a fixed table 12 and is stopped peiodically for printing by stops 11 fixed on the table, a lever 1 on the slide 4 is adapted to engage the stops and is disengaged therefrom by an electromagnet 5 under the control of a cam drum 20 which rotates in accordance'with the printing cycle operations. The lever 1 is pivoted to a lever 2, is normally held against a stop 15 by a spring 13, and is pivoted to the lever 18 of a hydraulic damping device 19. The lever 2 is pivoted at 3a, is normally held against a stop 16 by a spring 14, and is connected to the movable armature of the electro-magnet 5. The slide 4 is supported by wheels 7 on rails 6, and one wheel is driven by a constantspeed motor 8 through a belt 9. The motor 8 also drives the cam drum 20 through reduction gearing, and cams on the drum can engage contacts to energize the electromagnet 5. In operation, when the lever 1 on the moving slide 4 strikes a stop 11, it is urged towards a stop 17 against the damping action of the device 19, the belt 9 slips, and the slide is stopped. Printing now takes place under the action of the motor 8. After printing, the cam drum causes the electromagnet to be energized to swing the lever 2 about its pivot 3a, thus drawing the lever 1 upwardly clear of the stop 11, and the slide 4 is driven forward towards the next stop 11. The electromagnet 5 is now de-energized, and the springs 13, 14 return the levers 1, 2 to normal.
Patent GB-1293946-A (GB)
Title: Apparatus for cutting sheet material
IPC: B26D7/20
Filed: 1969-11-27
Abstract: 1293946 Cutting machines GERBER GARMENT TECHNOLOGY 27 Nov 1969 [5 May 1969] 4198/71 Divided out of 1293945 Heading B4B The subject matter of this Specification, is identical with that described in Specification 1,293,945 but the claims are concerned with the pressure foot 42d having apertures 55 through which compressed air may be fed in order to urge the material 14d to be cut toward the supporting surface 56.
Patent GB-343307-A (GB)
Title: Improvements in or relating to domestic coal boxes, or scuttles
IPC: F24B15/04
Filed: 1930-02-08
Abstract: 343,307. Coal scuttles. LUDLOW BROS. (1913), Ltd., 202, Fazeley Street, and BAKER, F., 141, All Saints Road, King's Heath, both in Birmingham. Feb. 8, 1930, No. 4289. [Class 52 (i).] A scuttle is constructed from a dish-shaped base section 6 with outwardly flared sides having secured thereto a one piece body section 7 forming the back and sides and carrying a handle or handles 8, 10.
Patent GB-234419-A (GB)
Title: Improvements in or relating to the gyroscopic steering apparatus of automobile torpedoes
IPC: G01C19/38
Filed: 1923-12-21
Abstract: 234,419. Whitehead Torpedo Co., Ltd., and Jones, A. E. Dec. 21, 1923. Torpedoes, locomotive.-Relates to gyroscopic steering devices of the kind in which a slide or piston-valve is carried transversely by a ported valve casing rotatably adjusted for " angle fire " about an axis in line with the pivotal axis of the outer gimbal ring and is connected to an eccen. tric on the outer gimbal ring. According to the invention, the slide or piston-valve F is arranged immediately in the space between the rotatable valve casing F<1> and the end of the adjacent vertical pivot c of the outer gimbal ring C instead of at one side of the gimbal axis, as heretofore proposed. The piston-valve F is connected by a stirrup F<3> to a crank pin f<3x> on the pivot c. The valve casing F<1> has a conical seating in the frame D, about which it is set for " angle fire " by means of a worm gear G, F<4>. The seating is kept tight by a spring f<4>. Ports f<x>, f<1x>, and f<2x> in the valve casing and Fx, F<1x>, and F<2x> in the frame serve to connect the valve F to supply and exhaust and to the steering cylinder F‹.
Patent GB-833343-A (GB)
Title: Improvements in driving and steering ships with steering propellers
IPC: B63H21/17
Filed: 1956-02-13
Abstract: 833,343. Propelling and steering ships. REINERS, W., and WIGGERMANN, G. Feb. 13, 1956 [Feb. 14, 1955], No. 4421/56. Class 114. In a ship having a rockable propeller for both driving and steering there is disposed between the driving motor or engine and the propeller shaft a planetary gear the housing of which is secured to the body of the ship. The first member of the planetary gear is connected to the driving engine, the second member to the propeller and the third member is connected on the one hand to the steering mechanism and on the other hand to the gear casing of the propeller whereby the driving engine exerts a torque on the gear casing which counteracts the torque on the gear casing caused by the propeller drive. The drive shaft 4a, Fig. 1, of an electric motor 4 mounted on the housing 30 of a double planetary gear rotates the ring gear 31 of a train including planet wheels 32 on a carrier 34 and meshing with a sun wheel 33. The carrier 34 drives the propeller 12 through a shaft 8 and bevel gears 9, 10 in the casing 3. The sun wheel 33 is normally stationary but is rigidly connected to a second sun wheel 33 and a worm wheel 37 driven through a worm 29 by a steering engine &c. 27. The second sun wheel 33a meshes with planet wheels 32 in a stationary outer ring 36 and mounted on a carrier 35 supporting rigidly a rocking tube 2 itself rigid with the gear casing 3 rocking of which changes the direction of the propeller thrust. The motor or engine may be separate and remote from the gear housing 30 and drive the gears through a Cardan shaft. Alternatively the distributer gears may be housed alongside the motor or engine and drive the propeller and rocking tube through coaxial Cardan shafts and bevel gears. A single planetary gear may be used, the motor driving the sun wheel, the planet wheel carrier the propeller and the outer ring being rigid with the steering worm wheel 37. For boats having twin propellers, two engines each driving a steerable propeller, as described, are provided and a differential mechanism may permit the steering tubes to be turned simultaneously in the same direction or in opposite ones. As shown in Fig. 6, the steering worms for the tubes 2 are connected respectively to adjusting shafts 61, 61a rigid with the carriers 66 of planet wheels 32 meshing with sun wheels 68 and an outer rings 67. These latter are toothed externally to engage linked gears 70 solid with a worm wheel 71 driven by an engine 27 thus adapted to rotate the shafts 61, 61a at equal speeds in the same direction to steer the boat, the sun wheels 68 being held by being connected to gears 60, 60a of a differential gear in constant mesh with a gear 59 solid with a worm-wheel 73 rotated by an engine or motor 27a. Normally the gear 59 holds the gears 60, 60a and the sun wheels 68 stationary but if the motor 27a rotates, it rotates these gears equally in opposite directions to reverse the boat.
Patent GB-346090-A (GB)
Title: Improvements relating to domestic stoves or fireplaces
IPC: F24B1/182
Filed: 1930-02-10
Abstract: 346,090. Combination ranges. PASCALL, F., 156, Charing Cross Road, London. Feb. 10, 1930, No. 4463. [Class 126.] In a combination range having an oven above the fire and adapted to be set in a chimney recess, the horizontal main transverse members a, a<1>, a<2> are separately set into grooves formed in the brickwork at the sides, or at the sides and back, of the recess. Flanges a<5> may be provided on the members a, a<1>, a<2> to form a space to receive mortar or other luting. The stove is so designed that the horizontal members are at suitable levels to engage between the courses of the brickwork. The front or face-plate h is held in place bv a strap n pivoted to its rear face and secured by spikes to the walls of the recess. The oven f<2> is withdrawable from the front, and is held in position by a nut engaging a stud n<5> on the strap. The member / forming the base of the oven-receiving chamber has a moulded front edge f<3>, and is slid into position through a slot in the front plate h. Two side members el forming hob plates have front portions projecting in front of the plate h. The grate o<2> is supported on shoulders formed on fire-bricks o.
Patent GB-448568-A (GB)
Title: An improved process for treating marble surfaces
IPC: C04B41/46
Filed: 1935-02-12
Abstract: A process of treating marble surfaces comprises cleaning the surface, grinding, coating with a transparent varnish, flatting down the coating when dry, applying a second coat of transparent varnish, flatting and polishing.  The surface may be cleaned first with a solution of caustic soda or the like and then with a grease solvent such as petroleum spirit or carbon tetrachloride.  It may then be pickled in chloride of lime and subsequently washed with water. Hollows or interstices in the surface are filled with a plastic composition the surface of which may be grained to match the marble. The varnish for the second coat may be a synthetic resin such as a polyhydric alcohol polybasic acid resin dissolved in a solvent together with a drying oil.ALSO:A process of treating marble surfaces comprises cleaning the surface, grinding, coating with a transparent varnish, flatting down the coating when dry, applying a second coat of transparent varnish, flatting and polishing.  The surface may be cleaned first with a solution of caustic soda or the like and then with a grease solvent such as petroleum spirit or carbon tetrachloride.  It may then be pickled in chloride of lime and subsequently washed with water.  Hollows or interstices in the surface are filled with a plastic composition of the same colour as the marble e.g. an oil bound composition or china clay mixed with synthetic resin and a solvent.  The surface of the composition may be grained with brushes, combs or by spraying to match the marble. Channels formed by the graining may be filled with a composition of a different colour.  The varnish for the second coat may be a synthetic resin such as a polyhydric alcohol-polybasic acid resin dissolved in a solvent together with a drying oil.
Patent GB-210299-A (GB)
Title: Improvements relating to igniting mechanism for the engines of ford cars
IPC: F02P1/00
Filed: 1923-02-16
Abstract: 210,299. Ipswich Industrial Co-operative Society, Ltd., and Gamblin, A. Feb. 16, 1923. Dynamos, arrangement of.-A high tension magneto may be attached to the side of an engine for a Ford car by a bracket 1 having a platform 2 to which the magneto is strapped and holes 5 for securing bolts. A casing and bearing for the pinion 10 and magneto shaft 7 are formed with the bracket, and a cover 12 is fitted.
Patent GB-570958-A (GB)
Title: New or improved device to control the degree of circumferential slip of a frictionaldrive or driven wheel, and or control the maximum speed of the driver
IPC: B60T8/32
Filed: 1943-03-20
Abstract: 570,958. Friction drives ; regulating slip. BURNAND, J. W. March 20, 1943, No. 4561. [Class 80 (ii)] [Also in Group XXXI] Means for preventing slip of driving wheels on a motor-vehicle, or between driving and driven members of shafts coupled by a friction clutch or belt, and also for limiting the maximum speed of the driving wheels or driven shaft, comprise a pump coupled to the driving member, a second pump coupled to the driven member, and a control member actuated by the two pumps in such a manner as to reduce the power supply to the driving member when the latter overruns the driven member in consequence of slip in the friction clutch &c., a constriction being provided in the pump circuit to limit the speed. In the construction shown applied to a vehicle a pump A driven by the drive to the vehicle driving wheels W<1>, W<2> has its delivery side connected to a cylinder C, and pumps B, B<1> driven by non-driving wheels W<3>, W<4> have their suction sides connected to the cylinder C, the other sides of the three pumps being connected to a tank D. Under normal running conditions the pumps B, B<1> take away the liquid supplied by pump A, but if the wheels W<1>, W<2> slip the speed of pump A increases, pressure builds up in cylinder C and a piston C<1> therein is forced outwards and closes the engine throttle H. A leak E allows the piston C<1> to return when slip stops, and a non-return valve F allows liquid to pass to make up any loss. A constriction G is provided in the pipe leading to the pumps B, B<1> so as to cause pressure to build up behind the piston C', if the speed becomes too high, and thus slow down the engine. Instead of the two pumps B, B<1>, a single pump driven from the wheels W<3>, W4 through a differential gear may be used. The inward movement of the piston C<1> beyond the position needed to open the throttle may be caused to reduce the braking power on the driving wheels, or alternatively, a separate cylinder and piston may be used. The capacity of the pump A may be, say, 10 per cent less than that of the combined pumps B, B<1> so that a certain amount of slip would take place before the piston C<1> closes the throttle. The Provisional Specification states also that the friction drive between shafts may be a friction disc and wheel.
Patent GB-734570-A (GB)
Title: Improvements in or relating to grain harvesting machines
IPC: A01D57/10
Filed: 1953-05-05
Abstract: 734,570. Reaping machines. PHILLIPS, C. M. May 5, 1953, No. 4689/55. Divided out of 733,679. Class 6 (3). A harvesting machine, of the type having a platform or transverse conveyer at the rear of the cutter bar 10, includes a plurality of airpipes 14 extending beneath the fingers 12 of the cutter-bar to project forwardly thereof, the front end 17 of each pipe being bent over so as to produce a rearwardly-directed nozzle 16. The pipes are attached to the fingers 12 by straps 15 and the bent-over portions carry crop-dividers 18 which terminate rearwardly in guide-bars 19, there being as many dividers and pipes as there are fingers on the cutter-bar. In a modification (Fig. 2, not shown) additional, intermediate, air-nozzles are provided between the bent-over ends and the fingers of the cutter-bar.
Patent GB-364896-A (GB)
Title: Process for the production of sugar-containing nutriments and table-luxuries
IPC: A23G3/50
Filed: 1931-02-14
Abstract: Sugar or a sugar combination which has previously been combined with radio-active matter or emanation by crystallization from water containing such radio-active matter or emanation is used for the production of any sugar containing nutriments and table luxuries other than chocolate, especially those prepared without the application of extremely high temperatures, e.g. dragees, fondants, marchpane articles, pralines, cakes, marmalades, jellies, preserved fruits, coffee and condensed milk.  Examples are given of the manufacture of (1) marchpane from almonds, cane-sugar and grape sugar which has been crystallized from radium- or emanation-containing water; (2) drops from cane sugar, radio-activated milk-sugar and honey; (3) sugar-containing coffee by sprinkling hot roasted coffee-beans with sugar, part of which is radio-activated milk-sugar, (4) marmalades and (5) condensed milk by mixing fresh milk with sugar containing radio-activated milk-sugar and condensing under vacuum.
Patent GB-1439431-A (GB)
Title: Magnet system for electrical circuit breakers
IPC: H01H71/24
Filed: 1974-02-01
Abstract: 1439431 Electrically released switches LICENTIA PATENT - VERWALTUNGSGmbH 1 Feb 1974 [3 Feb 1973] 04838/74 Heading H1N In a magnet system for a D.C. circuit breaker in which a holding electromagnet 1 normally retains an armature 3 in abutment therewith against the action of a release electromagnet 5, a second armature 7 is adjustably mounted on armature 3 to be influenced by the holding magnet to enable current at which the armature 3 is released by magnet 1 and attracted to magnet 5 to be adjusted. As shown release magnet 5 is energized by a single conductor 6 and holding magnet by a conductor 4 which is divided into two parts to allow the adjusting element 9 of armature 7 to pass therethrough. Although both magnets 1 and 5 are energized by the same current because magnet 1 begins to saturate before magnet 5, at the release current, the release magnet force overcomes the holding magnet force and armature 3 is attracted. The release force is moreover assisted by the attractive force of the holding magnet on the second armature 7.
Patent GB-725168-A (GB)
Title: Chilling of continuous casting moulds
IPC: B22D11/041
Filed: 1953-02-23
Abstract: 725,168. Continuous casting; moulds. BOHLER & CO. AKT.-GES., GEB. Feb. 23, 1953 [Feb. 22, 1952], No. 4954/53. Class 83 (1). A method of cooling moulds for continuous casting is characterized in that baffles are provided projecting into the path of the flowing cooling agent, in a direction substantially at right angles to the direction of its flow in order to remove from the coolant the whole, or substantially the whole, of its tangential flow component while passing along the mould jacket. Cooling fluid is led in to a circular chamber surrounding the lower end of the mould 1 through an inlet orifice. A number of circular baffles 4 are arranged within the chamber at right angles to the direction of flow. The coolant is finally passed axially over the outside of the mould in an upward direction. Where two continuous casting moulds are adjacently arranged the cooling fluid from the first may be led downwardly again outside the cooling jacket and passed through an orifice in the lower end of the second mould which is provided with a baffle arrangement similar to that of the first mould.
Patent GB-409481-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K25/00
Filed: 1933-02-17
Abstract: 409,481. Centrifugal switches. WALLACE & TIERNAN PRODUCTS, Inc., 11, Mill Street, Belleville, New Jersey, U.S.A.- (Assignees of Wallace, C. F. ; 629, Tremont Avenue, Westfield, New Jersey, U.S.A.) Feb. 17, 1933, No. 4963. Convention date, March 1, 1932. [Class 38 (v).] In a motor having an unwound magnetic armature rotating within an air core solenoid, a circuit controller operated by the armature energizes the solenoid by current impulses, and a governor is provided to maintain the motor speed constant by regulating the duration of closure and opening of the controller. In the form shown in Fig. 2, the permanent magnet 11 co-operates with a pair of series-connected solenoids 12 supported in casing which contains the switch operated by sleeve 25 and the condenser connected across this switch. Shaft 13 carries a plate 28 provided with a spring 27 attached to a sleeve 26 supporting the sleeve 25 which is eccentric with respect to the shaft for part of each revolution and only permits the switch to be closed for approximately one third of each revolution. This time of coil energization is adjusted by a governor which urges the sleeve 25 to its concentric position with increase in speed and thus prolongs the periods of de-energization. The sleeve 25 may operate a second pair of contacts to energize the coils twice per revolution if desired. The speed of the motor may be adjusted by rotating the arm 38 forming an extension of the governor spindle 36 around which is a spring 39. The motor may operate contacts 90, 95 in series with a lamp for a warning beacon for marine or highway work by means of the code wheel 85 which is frictionally driven by the last gear wheel 67 of a double reduction gear enclosed in the motor casing and a pointer 110 is provided to indicate the duration of time of closing of contacts 90, 95.
Patent GB-636668-A (GB)
Title: Improvements in or relating to telegraph receivers
IPC: H04L27/26
Filed: 1946-02-19
Abstract: 636,668. Pulse circuits. STANDARD TELEPHONES & CABLES, Ltd., Mc- WHIRTER, E. M. S., DUNN, R. H., and LENNOX, P. W. Feb. 19, 1946, No. 5153.. [Class 40 (vi)] [Also in Group XL (b)] In a mains-operated printing telegraph receiver employing coldcathode tubes, a pilot chain of three-electrode tubes 1 ... 7 has the first tube 1 normally conducting and the positive bias from a cathode resistor 12 primes the second tube 2, which fires on the next of a series of impulses applied to a common control-electrode lead 37 from a multi-vibrator. The remaining tubes 3 ... 7 then fire in turn under control of the multivibrator, the output pulse from the final tube 7 stopping the multivibrator. The chain operates as described in Specification 566,156, but the coupling of the tubes is modified. Each cathode resistor is doubled in value and its centre-tap is connected to the succeeding control electrode. When, say, tube 1 is conducting the voltage drop across the tube (70 v.) plus the drop across its cathode resistor 11, 12 (70 v.) provides the necessary 130 v. anode voltage for the second tube 2, even though the mains supply varies by as much as 10 v. The fall in potential at the control electrode of tube 2 is also less for a given drop in the mains voltage than with the prior arrangement. Also for a given mains voltage the voltage drop between the source 13 and the anode of tube 1 is less so that it is more easily extinguished by tube 2 becoming conducting. The code tubes 43 ... 47 are similarly interconnected.