baber/WOPTO huggingface dataset:
Patent GB-533342-A (GB)
Title: Improvements in high frequency apparatus utilising electron discharge devices of the magnetron type
IPC: H01J25/52
Filed: 1939-10-31
Abstract: 533,342. Magnetrons. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 31, 1939, No] 29032. Convention date, Nov. 1, 1938. [Class 39 (i)] In a magnetron oscillator as described in the Specification 491,444 the anode is of smaller cross-section in the portion immediately surrounding the cathode than elsewhere. For this purpose a conducting ring 38 of the cross-section shown may be arranged within the anode 7 to surround the cathode filament 39.
Patent GB-465933-A (GB)
Title: Current transformer of coil type with great strength towards the actions of over-current
IPC: H01F38/30
Filed: 1936-10-26
Abstract: 465,933. Current transformers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 26, 1936, No. 29066. Convention date, Dec. 2, 1935. Addition to 414,261. [Class 38 (ii)] In a current transformer having a primary winding 1 formed of concentric cylindrical shells inter-connected by annular end pieces as described in the parent Specification, the primary is arranged next to the core, and the secondary 8 is wound over the primary but separated therefrom by a porcelain or other fire-proof insulating body 4 having metal coatings on the surfaces indicated by thick lines. The primary terminal bushing may be formed integrally with the body 4 and projects through an opening in a metal casing surrounding the secondary. The core and winding structure may be supported within the insulator 4 by a support 7, or by an insulating closure at the lower end of the insulator, Fig. 2 (not shown). Premagnetizing turns connected in series with the primary and embracing only a part of the core section may be formed in the same manner as the primary turns as indicated in Fig. 5.
Patent GB-672207-A (GB)
Title: An arrangement for the control of a number of asynchronous induction motors
Filed: 1950-11-29
Abstract: 672,207. Control of several A.C. motors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 29, 1950. [Dec. 1, 1949] No. 29199/50. Class 38 (iii). An electric drive suitable for carding machines comprises induction motors 1 which are interconnected on their stator and rotor sides and have a common rotor resistance 4. When the motors are connected to the supply and switch 3 is open the rotors are at standstill and are aligned by synchronising currents passing between the windings. After a predetermined period a contact 7 closes to complete the connection through switch 3 and the motors commence to rotate. If the value of the inserted rotor resistance is too small overspeeding is caused and the motors tend to fall out of synchronism. A slip-responsive contact 6 then opens to disconnect the rotor resistance and reduce the speed, a lamp 12 indicating that the rotor resistance is unsuitable for the existing load. If the alternate connection and disconnection of the rotor resistance continues for a number of cycles the resistance may be manually or automatically adjusted. The contact 6 may be operated in accordance with the rotor frequency or the speed of one of the motors.
Patent GB-849863-A (GB)
Title: "electrode holders for electric smelting furnace"
IPC: H05B7/105
Filed: 1958-09-11
Abstract: 849,863. Furnace electrode holders. ELEKTROKEMISK A. S. Sept. 11, 1958 [Sept. 11, 1957], No. 29201/58. Class 39(3). An electrode holder for an electric smelting furnace comprises a number of contact clamps disposed around the electrode and pressed against its surface by spring means acting against the reaction of a pressure ring embracing the clamps and the electrode, the spring means acting on each clamp through a screw-threaded pressure bolt housed within the pressure ring and provided with adjustable means for varying its effective length. As shown, each contact clamp 2 is engaged by the inner end of a screwthreaded pressure bolt 4 which is screwed into a bushing 5 axially displaceable but secured against rotation within a bore formed in a pressure ring link 3. Disc springs 7 act between the link 3 and a flange on the bushing 5 to urge the latter and the bolt 4 axially against the clamp 2. The outer end of the bolt 4 is formed with a hole having an outer part 10 of square section and an internally threaded inner part 11. Rotation of the bolt 4, effected by a squareended key inserted into the hole 10 through the open end of the bore in the link 3 which is normally closed by a cover 9, serves to displace the bolt axially in tha bushing to vary the spring pressure. A pulling device 12, 13, 14 screwed into the hole 11 enables the plunger to be displaced in the outward direction to compress the springs 7 and relieve the clamping pressure.
Patent GB-331767-A (GB)
Title: Side-car for motor-cycles
IPC: B62K27/06
Filed: 1929-09-27
Abstract: 331,767. Burner, D. Sept. 27. 1929. Springs, arrangement of.-In a side-car for motor-cycles, the wheel 17 is carried by a spring- controlled oscillating frame or fork 16 mounted on a rotatable shaft 4 arranged within a transverse tube 2 of the frame. The oscillating movements of the frame 16 and shaft 4 are controlled by a torsional shock-absorbing device comprising springs or rubber buffers 15, Figs. 1 and 2, interposed between plates 12, rigid with a disc 11 secured to the tube 2, and plates 14 rigid with a casing 13 fixed to the oscillating frame 16 or shaft 4. The shaft 4 is mounted in the longitudinal frame tube 1 and the disc 11 by means of conical rubber sleeves 7, 8. In order to enable the clearance of the side-car frame from the ground to be adjusted, the elastic coupling may be rotatably adjustable relatively to the tube 2 or shaft 4, e.g. by means of a circular-slot and clamping-screw connection.
Patent GB-364155-A (GB)
Title: Automatic stop for electrically driven machines
IPC: H02H7/085
Filed: 1930-10-01
Abstract: 364,155. Actuating controllers. GIBBS, W. J., 110, Pearl Street, Brooklyn, New York, U.S.A. Oct. 1, 1930, No. 29413. Convention date, Oct. 5, 1929. [Class 38 (iii).] Safety arrangements.-A machine 14, for example a conveyer, is driven by a motor 10 through a belt or chain 12, the tight side of which is normally humped by a sprocket 18. carried by one arm of a bell-crank lever 16, on the other arm of which is an adjustable weight 21. If the machine 14 is overloaded or jammed, the tight side of the belt or chain 12, is drawn straight against the effect of the weight 21, and a projection 22 on the bell-crank lever opens a switch 26 in the motor circuit. A spring may replace the weight 21. In a modification, Fig. 2 (not shown), the sprocket 18 acts directly on a circuit opening pushbutton. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement in which the motor shaft is connected to the driven machine by a sleeve having inclined projections which engage similar projections on the driven member, so that when the machine is overloaded, the sleeve moves axially to open a switch in the motor circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-252950-A (GB)
Title: Improvements in and relating to coin actuated apparatus
IPC: G07F5/04
Filed: 1925-09-01
Abstract: 252,950. Manbre, G., and Routledge, J. G. Sept. 1, 1925. Coin action, with stationary coin forming abutment, and multiple-coin.-In coin actuated apparatus of the kind in which coins or the like of different sizes may be used, either separately or in combination, the coins are inserted in any order in a single slot which directs them by means of a single guide member into a single coin holder in which the coins rack themselves on their edges, the coin holder being provided with means enabling the vendor to vary the operating-price for which value is given. The operating-price, for example sixpence, may be paid by inserting six pennies, twelve half-pennies, or any combination of pennies and half-pennies totalling sixpence in value. As shown applied to a machine for vending articles stored in a pile, the coins are inserted in a slot a<4>, Fig. 2, and are directed by a guide h to a coin-holder k provided with a hinged side k<1> and spaced apart from the guide h. The fixed portion of the coin-holder is provided with inclined slots n - - n<9>, Fig. 5, in which a slide p forming the bottom of the coinholder, is placed according to the price at which the articles are to be sold. When the slide p is in slot n<9>, coins totalling sixpence in value must be inserted; when it is in slot n<8> the value required is 5 ¢d. Each succeeding slot represents a difference of a half-penny in the value required. When coins of the proper value have been inserted, the last coin projects across the space between the holder k and the guide hand forms an abutment for a bar f<3> carried by a lever arm f<2> pivoted at f<1> on sockets b<3> fastened to the ends of a pair of draw-bars b<1>. The ends f of the arms f<2> are thereby moved against the tension of a spring e<2> away from a stop e<1> to actuate the goods delivery or other mechanism. Coin-discharging mechanism; returning coin.- A pin b<6> on the draw-bar h' actuates a lever m against the action of a spring m<3> to open the hinged side k<1>of the coin holder and allow the coins to drop into a hopper r provided with two sliding doors r<1>, r<2>. If coins of correct value have been inserted, the door r<1> is opened bv a linkage s - - s<5> connecting it with the article delivery mechanism. The coins, thereupon, are discharged into a compartment x. If the coins inserted are insufficient, the bar f<3> passes between the coin holder and guide and actuates an arm v' pivoted at v<2>. This arm through a link v opens the door r<2> and allows the coins in the hopper r to slide down a slope a<12> to a delivery aperture a<9> and back to the purchaser. Delivery of articles stored in piles.-The ends f of the arms f<2> actuate a laver t<2> pivoted at t<3> and having a ram t which pushes out the bottom article w of a pile. This article falls down a slope a<13> to the delivery aperture a<9>.
Patent GB-790546-A (GB)
Title: Improvements in or relating to torque limiting clutches
Inventor: JONES CHARLES EDWARD
IPC: F16D7/04
Filed: 1954-10-13
Abstract: 790,546. Ciutches. JONES, TATE & CO., Ltd. Oct. 11, 1955 [Oct. 13, 1954], No. 29516/54. Class 80 (2). [Also in Group XXIX] A torque limiting clutch described in connection with the operation of the spindle 2a of a slide valve comprises a driving member 62, Fig. 2A, adapted to be driven through gearing from a rotary pneumatic motor 170, Fig. 3, and a driven member 71 coupled by means of a spider 17 to the operating nut 22 of the valve spindle 2a. The members 62 and 71 have tapered interengaging teeth 68, 69 which tend to disengage under the transmitted torque but are restrained by a pneumatic actuator 126, Fig. 4. This actuator acts through an arm 115, a spindle 100 and fork arms 104 on to the hub 71a of the driven clutch member 71 and comprises a double piston 150, 150a secured to rod 125. Air pressure for loading the clutch member 71 is supplied from a passage 147 to the piston 150a and after a part movement of this piston through a passage 148 to the piston 150. At the lower limit of its travel piston 150 is a close fit in its cylinder but at its upper limit it has a clearance to provide a leakage path for the air. In operation should movement of the valve be obstructed and an excessive torque be transmitted through the clutch 62, 71 the dog teeth 68, 69 tend to disengage against the loading of the air pressure on pistons 150 and 150a. The pistons rise and as piston 150 reaches the larger bore diameter the air pressure acting thereon is released to allow the complete disengagement of the clutch. The air pressure still acts however on piston 150a to tend to reengage the clutch should the obstruction be cleared.
Patent GB-1474150-A (GB)
Title: Steering column switch for automotive vehicles
IPC: B62D1/16
Filed: 1975-07-15
Abstract: 1474150 Mounting switches SWF-SPEZIALFABRIK FUR AUTOZUBEHOR GUSTAV RAU GmbH 15 July 1975 [12 Aug 1974] 29562/75 Heading H1N An electric switch 30 for mounting on the end of the steering column tube 10 of a motor vehicle has integral spring fingers 21 extending from a bearing sleeve 20 and fitted over the end of the tube 10 with integral projections 22 in locking engagement with recesses 13 on the tube. A recess 24 is provided in the sleeve 20 to permit the release of the fingers 22 as by pressure at the projecting ends 23 extending beyond the end of the tube 10. Inserts (not shown) may be placed in the recess 24 to lock the fingers 21 in the engaged position and are retained by an end support ring 26 for the compression spring located between the steering wheel and the tube 10.
Patent GB-811063-A (GB)
Title: Aircraft indicating instruments
IPC: B64D45/00
Filed: 1955-06-01
Abstract: 811,063. Attitude-indicating instruments for aircraft. SPERRY RAND CORPORATION. June 1, 1955 [June 11, 1954], No. 29657/57. Divided out of 811,061. Class 4. An aircraft instrument for indicating pitch and roll attitudes comprises a housing having a front wall 5 provided with a viewing opening 29 behind which is mounted a pair of pivoted crosspointers 11, 12, a fixed reference 6 and a flexible sheet 26 mounted on spaced rollers 27, 28 and marked with a dividing line 25 between area of contrasting colours representing sky and earth. The rollers 27, 28 are mounted on a frame 30 arranged for rolling motion about a shaft fore-and-aft of the instrument and driven through gearing 46 from a servo system including synchro 44 and motor 45. The motor receives a control voltage from amplifier 47 fed with roll error signals from a roll synchro 21 on a gyro vertical 17. Movement of sheet 26 over rollers 27, 28 to indicate pitch errors is achieved through a drive consisting of gearing 39, a differential 38 (to prevent roll motion from causing consequent pitch motion), gearing 36 and a servo system consisting of motor 35 and synchro 34, the motor being fed with pitch error signals, through amplifier 41, from pitch synchro 20 on gyro vertical 17. The movement of line 25 on screen 26 with respect to index 6 therefore provides an indication of actual roll and pitch error. The pointer 11 is driven through an epicyclic gear train 53, (which ensures planar movement of the pointer across the viewing opening), gearing 54 and a synchro-motor unit 50, 51 which receives control voltages from amplifier 52 energised from an azimuth signal source 13. The motor 51 may be supplied with a dummy signal which drives the pointer 11 to a stowed position out of view of the pilot. The source 13 comprises a directional radio beam receiver and a gyro-magnetic compass which supplies a signal proportional to the heading of the aircraft with respect to the magnetic meridian. The compass is connected to a heading selector and the signals from the receiver and the compass are combined with a signal from roll sychro 21 whereby the movement of pointer 11 from index 6 provides an indication of the difference between a demanded bank angle of the aircraft and the actual bank angle. Pointer 12 is moved similarly to pointer 11 by epicyclic gearing 58, gearing 59 and synchromotor unit 55, 56 energised through amplifier 57 from elevation signal source 14. Source 14 consists of a glide slope receiver and an altimeter, the signals from which are combined with further signals from pitch synchro 20 so that pointer 12 gives an indication with respect to index 6 of the difference between a demanded pitch attitude and the actual pitch attitude of the aircraft. Specifications 690,985 and 733,024 are referred to.
Patent GB-181313-A (GB)
Title: Improvements in mechanically operated furnaces for roasting pyrites
IPC: F27B9/14
Filed: 1921-11-07
Abstract: 181,313. Manufactures de Produits Chimiques du Nord, Etablissements Kuhlmann. June 10, 1921, [Convention date]. Addition to 167,464. Charges, agitating.-The disposition of the teeth of rabbling-arms for mechanically-operated furnaces for roasting pyrites as described in the parent Specification, is modified by arranging the teeth, which have the form of a mould-board of a plough, on a pair of oppositely-situated arms, so that the end of a tooth which is situated farthest from the centre of the apparatus is located upon the same circle as the end of a following tooth of the opposite arm which is situated nearest the centre. The inclination of the teeth relative to a perpendicular to the arm is also reduced to one half. As shown, the end of a tooth 5 of the arm 3 which is farthest from the centre of the apparatus is located on the same circle as the end of a tooth 6 of the oppositely-situated arm 4 which is nearest the centre, while the end of the tooth 6 which is farthest from the centre is located on the same circle as the end of the following tooth 7 of the arm 3 which is nearest the centre, and so on.
Patent GB-845403-A (GB)
Title: Improvements in or relating to hulls for watercraft and watercraft embodying same
IPC: B63B5/24
Filed: 1955-10-18
Abstract: 845,403. Laminates. JABLONSKY, B. Oct. 18, 1956 [Oct. 18, 1955; July 2, 1956], Nos. 29706/55 and 20428/56. Class 140. [Also in Group XXXIII] A hull for watercraft (see Group XXXIII) comprises a core moulded from an expanded synthetic organic plastic material exhibiting a multiplicity of closed non-intercommunicating cells (e.g. expanded polyvinyl chloride), one or more surfaces of which are covered with a stressed skin (e.g. of nylon or glass fibre fabric, or metal gauze or mixtures thereof) secured thereto and adapted to strengthen the core, and one or more buoyancy members of expanded synthetic organic plastic material (e.g. polystyrene), also exhibiting a multiplicity of closed non-intercommunicating cells, secured to the inside walls of the hull whereby said members also act as structural or reinforcing members.
Patent GB-800555-A (GB)
Title: Improvements in or relating to ring-spinning apparatus
Inventor: SMITH FREDERICK ARTHUR
IPC: D01H7/64
Filed: 1955-10-19
Abstract: 800,555. Ring spinning. BRITISH NYLON SPINNERS, Ltd. Oct. 5, 1956 [Oct. 19,1955], No.29797/55. Class 120(2) In ring - spinning apparatus the mounting of the ring and ring rail is such that a relative high-speed to-and-fro motion in the axial direction is superimposed on the ordinary relative motion in the axial direction between the traveller and a point on the yarn receiving member, which high speed to- and-fro motion is sufficient to bring about cross-winding of the yarn on the package Preferably the mounting of the ring and the ring rail is arranged so that the axis of the ring interspindle. As shown this is achieved by mounting the whole ring rail 9 such that the axis 3 of the ring 5 is at an angle # to the axis 7 of the spindle angle # is preferably between 2 and 10 degrees. The ring rail may be left horizontal and ring holder raised at one side or the ring may be mounted on an inclined holder. Arrangements may also be provided for varying the angular relationship during winding. To counteract the degree of ellipticity of the ring section projected on to a plane perpendicular to the spindle axis the ring itself may be made elliptical. Specification 543,466 is referred to.
Patent GB-845420-A (GB)
Title: Improvements in and relating to photographic reproduction methods
IPC: G03G13/06
Filed: 1956-10-01
Abstract: 845,420. Developing electrostatic latent images. OZALID CO. Ltd., and FIRMINGER, A. R. Sept. 30, 1957 [Oct. 1, 1956], No. 29821/56. Class 98(2) An electrostatic latent image is developed by contacting a support carrying the latent image or a surface placed over the latent image, with a dry developer powder floated on the surface of a liquid medium which does not wet the developer powder. The latent image may be formed by uniformly charging a photoconductive layer on a support followed by imagewise exposure, and may then be developed directly on the photoconductive layer by passing it, e.g. in a freehanging loop, across the powder-bearing surface of liquid. Alternatively, a sheet of paper may be placed over the latent image and the visible image developed thereon. The developed image may be fixed on the surface or transferred to another surface and fixed thereon in the usual way. The developer powder may be a pigmented resin, and it may be distributed over the surface of mercury, a bath of molten metal of low melting point such as Wood's metal, or water. According to the Provisional Specification the developer may be a liquid such as a solution of an electroscopic material in a non-ionic solvent, or a suspension of electroscopic powder in an insulating liquid. It may be formed as a layer on a non-miscible liquid carrier of greater density. It is also stated that the developer may be a molten resin used with or without a supporting liquid, the latent image being presented to the surface thereof or immersed therein, or the developer being applied by means of a roller.
Patent GB-699994-A (GB)
Title: Collapsible pit-props
IPC: E21D15/38
Filed: 1951-12-20
Abstract: 699,994. Pit props. BRAND, J., and RITCHIE, C. Dec. 20, 1951 [Feb. 26, 1951], No. 29863/51. Class 20(ii) In a telescopic pit prop, the frictional resistance to collapse is generated by clamping together, e.g. by an eccentric 10, Fig. 1, two sets of laminations, one elongated set 6 being connected to the lower end 6<SP>1</SP> of the upper prop part 4 so as to move with it and to be subjected to tensile stresses only by the load on the prop, the other short set 7 being secured on the prop lock 1 on the lower prop part 2 which has a guide sleeve 3 above the lock 1 adapted to contain and laterally support the laminations 6 even in the fully extended position of the upper prop part 4. The part 4, Fig. 2, is of tubular form and is slotted at its lower portion 5 to accommodate the laminations 6 which pass round a bolt 6<SP>1</SP> bridging the slot at its lower end. In the extended position of the prop part 4, the guide sleeve 3 laterally supports also the lower portions 5 of the prop part 4 which tend to buckle outwardly and which may be non-integral with the upper portion of the part 4 and arranged to bulge outwardly or formed of spring laminations having external packings so that they bear against the inner wall of the lower prop part 2, 3. An adjustment screw 17 on the lock serves to vary the carrying capacity of the prop. In a modification, the laminations 6, Fig. 10, are accommodated in the recesses of an I-section upper prop part 4 and the laminations 7 are contained in bushes 15 on the lock 1 which are slotted to receive the laminations 6, the innermost one of which is secured directly to the web 21 of the upper part 4. The laminations may be covered with a non-metallic layer, e.g. by bonderizing or phosphatizing.
Patent GB-391233-A (GB)
Title: Improvements in, or relating to, pumps for fuel-injection and analogous uses
IPC: F02M59/26
Filed: 1931-10-30
Abstract: 391,233. Fuel-injection pumps. PILGRIMS WAY MOTOR CO., Ltd., GRAVENOR, J., and ARMITAGE, E. L., Weydon Hill, Farnham, Surrey. Oct. 30, 1931, No. 30068. [Class 102 (i).] In a fuel-injection pump of the type in which the barrel c has upper suction ports c<1> controlled by the end of the plunger b and a lower inclined spill port f co-operating with axial and transverse passages f<1>, f<2> in the plunger, the barrel is formed in one piece, inserted in the pump body a, and forming therewith a suction chamber d. The barrel may be surrounded by a sleeve f<3>, Fig. 7, having ports c<3> registering with the ports c<1> and ports f<4>, f<5> communicating with the ends of the port f. The ends of the port f may be parallel to one another, or inclined and curved. Alternatively, the port f may be replaced by an eccentric passage c<4>, Fig. 9, cut through the barrel and intersecting the bore.