baber/WOPTO huggingface dataset:
Patent GB-1037902-A (GB)
Title: A method of making the stator of an electric machine
IPC: H02K1/16
Filed: 1965-03-26
Abstract: 1,037,902. Core constructions. SIEMENSSCHUCKERTWERKE A.G. March 26, 1965 [March 28, 1964], No. 13066/65. Heading H2A. The stator of a dynamo-electric machine is formed by closely helically winding a sheetmetal strip 4 having outwardly directed slots 5, to form an inner stator ring 3 and separately closely helically winding sheet metal strip 1 on edge to form an outer stator ring, the two rings being subsequently assembled one within the other. The outer stator ring 1 is preferably heat treated before assembly, the resulting blue film providing insulation between the strips 1 and the inner ring 3. The strips may be formed from grain oriented metal having the directions of higher permeability as indicated by arrows V1, V2 or (Fig. 5, not shown) in two orthogonal directions. The ring 3 may be insulated from the ring 1 by tape which may be disposed around the periphery of the grooves 5 or by glass fibre bonded by epoxy resin. In Figs. 5, 6 (not shown) the outer core is wound in the form of multi-start helices of a plurality of strips of different width arranged so that the radial distance of the inner diameter of any wound strip of a given width is different from any other such strip.
Patent GB-1211404-A (GB)
Title: Apparatus for electrically controlling control members
IPC: F15B5/00
Filed: 1968-03-18
Abstract: 1,211,404. Fluid-pressure servomotor systems. SIEMENS A. G. March 18, 1968 [March 18, 1967], No. 13081/68. Heading G3P. A hydraulic or pneumatic regulating apparatus has a control element 1 moved relative to a nozzle 2 by an electric signal transmitted through an intermediate control which remains in its momentary position in the event of electrical supply failure. As shown the electric signal is applied to a high-speed low-inertia motor 5 acting through glaring 6. A slider 7 of a potentiometer 8 is moved simultaneously with the movement of the glaring to apply a feedback into an amplifier 12 supplied by a variable-gain amplifier 11 having a feedback 10. The motor 5 and glaring 6 may be replaced by a step-by-step switching mechanism.
Patent GB-528687-A (GB)
Title: Improvements in safety devices for machine tools
IPC: F16P3/04
Filed: 1939-05-02
Abstract: 528,687. Machinery guards. STANDARD TELEPHONES & CABLES, Ltd., MAY, F. W., and CLARKE, G. W. May 2, 1939, No. 13103. [Class 80 (iv)] A power press has a safety guard 7 which is interlinked with a clutch 9 on the crankshaft 3 in such a manner that the crankshaft is clutched to the frame of the press whenever the guard is out of its safety position, a shock absorber being provided between the clutch and the frame. An arm 12 on the clutch housing is connected by a link 14 to the piston 15 of a dashpot cylinder 13 filled with oil. The lower end of the cylinder wall has a circular opening 16 communicating with a triangular opening 17 in the upper part of the wall, so that resistance to movement of the piston is initially small and gradually increases. As alternatives, a steel spring or rubber block may be employed and to prevent recoil a second resilient device may oppose the first. By pulling down the guard 7, the clutch 9 is first released, further downward movement of the guard to safety position releasing the usual driving key in the flywheel clutch 6 and causing the flywheel and.crankshaft to be engaged. According to the Provisional Specification, the crankshaft has a sleeve keyed thereto the sleeve forming a bearing for the apertured end of a scotching lever the opposite end of which is provided with the shock-absorbing device.
Patent GB-1042073-A (GB)
Title: Improvements in or relating to mechanical diggers
IPC: E02F3/42
Filed: 1964-03-31
Abstract: 1,042,073. Ditch-clearing scoops. H. J. KENT. June 23, 1965 [March 31, 1964], No. 13167/64. Heading E1F. A digging attachment for a tractor (not shown) comprises fork arms 15 adapted for adjustable connection to the existing pivotal boom structure 2 of the tractor, which arms carry a bucket 16 on hinges 17 which has a lever arm structure 28 formed by two spaced plates to which the piston of a double-acting hydraulic ram 29 is connected so that the bucket is tiltable between a digging or discharge attitude with its mouth facing substantially downwardly and a lifting attitude wherein it is substantially horizontally facing. The digger attachment is rigidly secured to the existing boom structure when in use both by an adjustable bracing means 21 formed between an upright 20 on each end of a cross member 14 of the attachment and triangular plates 11 on a transverse member 9 of the boom, and also by a hinge connection 19 between spaced parallel plates 18 of the attachment and the existing lugs 10 of the boom. The bracing means 21 comprises two telescopic members 24, 25 held in any desired position by a locking pin 26 through co-operating holes 27. The bucket may face towards or away from the tractor in the digging position. A digger blade edge 41 borders the lower side of the mouth of the bucket and lateral digger means 47 may be fixed to the sides 33 of the bucket, which may also be strengthened. The bucket is tiltable through only about 90 degrees and tilts from the digging to lifting attitude whilst the digging edge contacts the ground.
Patent GB-678864-A (GB)
Title: Improvements in and relating to the construction of hand trucks
IPC: B62B1/18
Filed: 1950-05-26
Abstract: 678,864. Hand trucks. BROADBENT, A. May 15, 1951 [May 26, 1950], No. 13249/50. Class 108(i) A hand truck comprises a toe plate 17, and two side members 3 each of which is made from a length of tubular steel bent back on itself at the ends to form loops which are welded to the straight part of the tube at points 6 and 8. The forward loop which constitutes both a handle 4 and a supporting leg, is provided with a floor plate 5, and the rearward loop has a welded tube 18 which accommodates ball bearings for the wheel axle 19. Transverse stiffeners 12, 13, and 14 provided between the two side members 3 are tied by longitudinal tubes 15, 16, Fig. 1 (not shown), and tie members 11 between pairs of loops are provided on each side.
Patent GB-310964-A (GB)
Title: Process for the production of acetylene dichloride of low boiling point from acetylene and chlorine
IPC: C07C17/02
Filed: 1929-04-29
Abstract: 310,964. I. G. Farbenindustrie Akt.- Ges. May 5, 1928, [Convention date]. Dichlorethylene.-Acetylene dichloride of low boiling point is prepared from chlorine and excess of acetylene by using active carbon as contact agent at temperatures below 100‹ C. Equal volumes of acetylene and chlorine may be continuously mixed with a current of gas containing excess of acetylene, and circulated through a vessel containing active carbon. The temperature of the carbon layer, which is stated to be an optimum at about 40‹ C., may be regulated by the amounts of fresh chlorine and acetylene added from time to time, and by varying the speed of circulation. The product is stated to consist largely of pure trans-dichlorethylene. Specification 16620/12 is referred to.
Patent GB-123482-A (GB)
Title: Pneumatic Driving Gear.
Inventor: FRANCIS WILLIAM STEVEN
IPC: F16D25/04
Filed: 1918-09-16
Abstract: 123,482. Francis, W. S. Sept. 16, 1918. Friction wheels. - Friction driving wheels, or clutch wheels, having pneumatic tyres, are provided with rims which largely enclose the sides of the tyres and have separable sides to facilitate the mounting of the tyres. Fig. 2 shows a pair of friction wheels a, b with pneumatic tyres c, d between separable rims, and Fig. 4 shows a clutch in which a slidable member has a pneumatic rim i<1> between separable rims i. In another form of clutch, a pneumatic rim on an internal member is adapted to be expanded in an annular channel in a member surrounding it.
Patent GB-134018-A (GB)
IPC: G08B5/22
Abstract: 134,018. Butcher, A. Deane-, and Kent, Ltd., G., (Butcher, A. D. Deane-). Oct. 22, 1918. Telephone systems combined with liquid-level signalling systems. The readings of a water-level indicator are signalled over a telephone system by means of a drum provided with a series of rows of code contacts which are engaged by a contact-arm the position of which is controlled by a float. The drum is held normally against rotation by means of a detent, from which it is released by the hammer of the telephone call-bell, and the control circuit is broken at the commencement of rotation of the drum and before the signalling impulses are transmitted. The drum and contact arm may be replaced by a phonograph cylinder and stylus bar operating in conjunction with a telephone transmitter in order that the signal may be sent in the form of a message. A drum 1, Fig. 1, is provided with a ,series of rows of code contacts which are engaged by a contactarm 6, the position of which is varied by a float attached to a flexible cord 12. The drum 1 is held normally against rotation by a detent 7<a> mounted upon a lever 7 and engaging a stop 4 on the drum. The lever 7 is held down, normally, by a pawl 9, Figs. 1 and 2, from which it is released by the, hammer 10<a> of a call-bell. The coils 10 of the bell are connected across the lead terminals L<1>, L<2> through the detent 7<a> and stop 4 so that upon the commencement of rotation of the drum this circuit is broken and the code impulses are sent to line.
Patent GB-679945-A (GB)
Title: Loose leaf memorandum index device
IPC: B42F17/34
Filed: 1950-05-30
Abstract: 679,945. Filing papers; indexing. BROWN & BIGELOW. May 30, 1950 [May 31, 1949], No. 13502/50. Classes 16 and 146 (i). An index device A comprises a casing 10 for a pack B of loose leaf cards 12 provided with identifying indicia, a plurality of keys 14 with corresponding indicia connected with lifting fingers 23 so as to raise one or more cards to expose a selected card upon actuation of the corresponding finger key and a closure key 27 adapted upon actuation to return the raised card or cards to initial position. The pack B of cards, positioned in a recess 11 are provided with notches 26, the number of notches increasing downwardly in the pack from one side so that each finger 23 passes through a number of notches to lift all cards 12 with no notch in that position. The fingers 23 are mounted on a common rod 24 and are operated by rods 17 pivoted thereto at 22 and to which the keys 14 are connected by hooks 16 passing through slots 15 in the sloping front 13 of the casing. A cover C is provided having a recess 19 for cards 12 and is pivoted on rod 24 by end plates 18 which have arcuate tracks 20, the cards 12 being held on the tracks by notches 21 and the cover C being lifted by the fingers 23 to the position of Fig. 2 where it is held by contacting the back wall of casing 10. The closure key 27, operating in a slot 15 in casing front 13, is formed with a hook to engage a rod 28 which is pivoted to one end of a cross bar 29 at 30, the bar 29 being centrally pivoted at 32 to a plate 31 and having at the opposite end a shoe 33 to engage the edge 34 of the cover so that operation of key 27 pushes the raised cover C and any cards 12 in the recess 19 over the dead centre so that the cover falls by gravity to the closed position. The plate 31, which is supported on lugs 38 on the bottom plate 39 of the device, is provided with holes for springs 37 connected to the hooks 16 of the keys 14 so that keys 14 and fingers 23 return to normal position on release of the keys. A locking bar 43 is provided to prevent operation of any other key 14 when the cover C has been raised, the bar 43 being pivotally supported in loops 45 on the bottom 39 and operated by the edge 34 of the cover C, which, when raised, presses the bar 43 to engage notches 46 in the fingers 23, the bar falling out of engagement when the cover is closed.
Patent GB-615255-A (GB)
Title: Improvements in reduction gear arrangements for the propeller drive of aircraft
IPC: B64D27/00
Filed: 1946-05-03
Abstract: 615,255. Bearings. JAMESON AERO ENGINES, Ltd., and JAMESON, J. L. May 3, 1946, No. 13506. [Class 12 (i)] A reduction-gear drive for a propeller shaft is supported adjacent the reduction gear by a bearing positioned in a housing by a locking pin or pins, which extend through the housing and between the planes defining the width of the bearing ring so that they are accessible from outside. A propeller shaft 1 is supported by front and rear bearings 2, 3 carried by an extension 5 of the engine crank-case 51, the crank-shaft 6 having a pinion 7 in mesh with a gear ring 8 formed on a flange extension of a back plate 9 at the rear end of the shaft 1. The outer race of the rear bearing 3 is constituted by the inner peripheral surface of a ring 10, the outer surface of which screws into a bore in an internal flange 12 on the extension 5. The ring is then secured by a number of radial locking pins 13 which pass through the flange 12 and screw into the ring, the heads 14 of the pins resting on the outside of the extension 5. The inner race 15 for the bearing 3 is provided by the shaft 1. The back plate 9 can thus be arranged close to the bearing 3 since there are no internal nuts or bolts to avoid. Screws or bolts merely bearing on the screwthread of the bearing ring 10 may replace the locking pins. The front bearing 2 is of any usual arrangement.
Patent GB-581469-A (GB)
Title: Improved machine for sealing cartons
IPC: B65B7/20
Filed: 1944-07-14
Abstract: 581,469. Sealing cartons. McTAGGART, J. H., and ROSS, D. T. July 14, 1944, No. 13531. [Class 18] In a machine for sealing the end flaps 20 of cartons 19, Fig. 6, the cartons are fed intermittently by a pusher head 22 between guide plates 18, Fig. 3 with flaps 20 outspread, liquid adhesive being applied to the under surfaces of flaps 20 by gumming rollers 36, a light pressure being applied by rider plates 43. The flaps 20 are folded down over the carton ends by bars 47 after which the cartons pass to heating plates 50, 51 Figs. 3 and 5, heated by electrical resistances, hot water, steam &c. Plate 51 is resiliently movable to relax pressure on the cartons and preferably has means whereby pressure is entirely relieved while the carton column is moving. The sealed cartons may as in Fig. 3 move straight ahead to the delivery point or, in a modification they may be delivered upwards in a vertical column.
Patent GB-135504-A (GB)
Title: Improvements relating to the wireless transmission of sound.
Inventor: HANSON EARL CHARLES
IPC: H04B5/00
Filed: 1919-11-10
Abstract: 135,504. Hanson, E. C. Sept. 7, 1915, [Convention date]. Inductive telephony.-In a system of inductive telephony, the received impulses are amplified by a thermionic valve. The aerial is connected through an iron-core inductance 32 to earth either through a telephone 38 or through the primary 39 of a transformer, the secondary of which is connected through the valve 40 to a telephone 48. At the transmitting station, a microphone 16, battery 19, and resistance 22 are arranged in series with the primary 13 of an iron-core transformer, the secondary of which is connected through an iron-core inductance 5 to the aerial 1. The parts 16, 19, 13 are shunted by condensers.
Patent GB-833718-A (GB)
Title: Process for extracting gold
IPC: C22B11/08
Filed: 1957-04-29
Abstract: In the recovery of gold from material containing gold and iron by a process which comprises roasting the material at a temperature of 500-1600 DEG  F., preferably 900-1400 DEG  F., and treating the roasted material with an aqueous leaching solution, e.g. of a cyanide or chlorine, for the extraction of the gold, the roasted material is heated at a temperature of 1650-2400 DEG  F., preferably 1800-2150 DEG  F., before leaching.  Roasting may be effected in a fluidized bed or Edwards-type roaster.  Roasting time may be 1-10 hours and is preferably 1-4 hours.  The roasted material may be pelleted before the heat treatment.  The heattreated material may be crushed so that at least 90% passes through a 200 mesh screen before leaching. Leaching may be effected with an aqueous solution of sodium cyanide and lime. Three comparative examples are given.  Specification 833,719 is referred to.
Patent GB-1106687-A (GB)
Title: Electric arc welding power supply
Inventor: BOUGHTON PETER
IPC: B23K9/09
Filed: 1965-03-31
Abstract: 1,106,687. Arc welding systems. BRITISH OXYGEN CO. Ltd. 13 June, 1966 [31 March, 1965], No. 13670/65. Heading H2H. A rectified A.C. consummable electrode arc welding system is arranged to provide either an output suitable for spray or short-circuiting metal transfer, or a pulsed output alternating with or superimposed on a steady current. The pulsed output may be provided by a short circuitable impedance, or by taps and transformer winding, a higher voltage tap being switched by a contactor or thyristor. Threephase arrangements are described in the Specification, one of which will supply pulses of 150, 100 or 50 c.p.s. by the selective operation of a switching system.
Patent GB-824803-A (GB)
Title: Improvements relating to infinitely variable friction drives
IPC: F16H15/16
Filed: 1957-04-30
Abstract: 824,803. Continuously variable friction gearing. KOPP, J. E. April 30, 1957 [July 7, 1956], No. 13684/57. Class 80 (2). A continuously variable friction drive in which friction rolls with double conical surfaces have their axes of rotation at an angle to the common axis of the running surfaces between which the rolls are arranged and in which the transmission ratio is varied by movement of the rolls in the direction of the axis of the running surfaces, is characterized in that the conical circumferential surfaces of the rolls are inclined to the axis of the running surfaces which are staggered to each other in the direction of their axes. Input and output shafts 3, 4 are in driving relation with discs 9, 10 through camming ball devices 11 such that torque between the shafts and the discs produces axial force on the discs to increase their engaging pressure on a series of double conical rollers 7. The rollers are journalled at 8 in a non-rotatable cage 6 movable along the axis of shafts 3, 4 by a rack and pinion mechanism 15, 16 to change the transmission ratio. The surfaces of the conical portions of the rolls 7 are arranged at an angle to the axis of the shafts 3, 4 such that the bearing pressures of the rolls produced by the contact pressure are partially compensating. In a modification, Fig. 3, the rolls 7 are carried in a cage 22 in driving connection with a shaft 31 and axially movable by a rack and pinion mechanism 26, 27. The rolls are contacted by a rotatable disc 10 having a camming ball drive with shaft 4, and by a stationary disc 28 in camming ball relation with the casing 20. Embodiments are described in which a plurality of gears according to Fig. 1 are arranged in parallel and in which a gear according to Fig. 1 and a gear according to Fig. 3 are arranged in series. In a further modification, Fig. 6, the rolls 43 are journalled in a carrier 45 by roller bearing 44, and engage a ring 48 splined to the casing 51 and axially urged by a spring 52. The carrier 45 is rigid with one drive shaft and a disc 47 with the other drive shaft 46.
Patent GB-626556-A (GB)
Title: Spring suspension for bicycles
IPC: B62K25/16
Filed: 1947-05-22
Abstract: 626,556. Spring forks. BOUTHILLIER, D. May 22, 1947, No. 13744. [Class 136 (iii)!] In a spring suspension for the front wheel of a bicycle the front wheel axle has fitted a lever to one end of which by means of a link the front wheel fork is connected and to the other end is pivotally connected an auxiliary fork having cushioning springs between the fork and frame. As shown in Fig. 1, the wheel axle 2 has mounted on either side a lever 3 to one end of which through a link 4 is pivotally connected the fork 6 and to the other end is pivotally connected an auxiliary fork 16 having cushioning springs 20 between the fork and frame. The upper ends of the fork pass through a plate 13 bolted to a bracket 12 on the steering head and the spring 20 is compressed between a collar 19 and the plate 13. The link 4 is in surface contact with the lever 3.
Patent GB-1489505-A (GB)
Title: Gramophone record turntable assemblies
IPC: G11B19/20
Filed: 1975-04-03
Abstract: 1489505 Resilient mountings SONY CORP 3 April 1975 [16 April 1974] 13755/75 Heading F2S [Also in Division G5] A gramophone turntable 12 is provided with a series of large and small record support elements 15a, 15b, each of which is formed of elastic material and includes an upwardly dished part 17a which with a record defines an enclosed space and this space is coupled via an air passage 19a to the atmosphere. The elements act to provide stable support for a record even if this is warped and also act to reduce the transmission of vibration from the turntable drive system to the record. The material can be natural or synthetic rubber and the dished parts can be formed with base members 16a which are secured in recesses 12b formed in the turntable or they can be formed integral with a turntable mat, Fig. 8 (not shown). An annular groove can be formed where the dished part meets the base member or the turntable mat to increase the flexibility of the element. Different dispositions for the air passage are described.
Patent GB-748059-A (GB)
Title: Helicopter for towing
IPC: B64C27/04
Filed: 1954-05-11
Abstract: 748,059. Helicopter for towing. PIASECKI HELICOPTER CORPORATION. May 11, 1954 [May 13, 1953], No. 13779/54. Class 4. A helicopter 11 having two rotors 12, 13 in tandem and capable of differential collective pitch control to achieve pitching movement of the helicopter is provided with a towing connection 16 secured to the helicopter at a position 17 so located that when the controls are adjusted to give forward motion to the helicopter a line through a towing cable 18, the connection 16 and point 17 intersects, with the lift vector a, the centre of gravity 15 of the aircraft. Such arrangement ensures stability of the aircraft for if the cable 18 breaks the helicopter will automatically right itself by an upward pitching movement and any excessive downward pitching movements resulting from gusts will be counterbalanced by the movement created by the load exerted by the tow cable acting about the offset centre of gravity 15. U.S.A. Specification 2,507,993 is referred to.
Patent GB-1387612-A (GB)
Title: Yarn feed devices
IPC: D04B15/48
Filed: 1972-03-24
Abstract: 1387612 Yarn feeding arrangement for knitting machines LIR SpA LABORATORIO ITALIANO RICERCHE 24 March 1972 [30 March 1971] 13808/72 Heading D1C Between a yarn storage means and a yarn working machine is provided a yarn feed device comprising yarn guide means 3 for a plurality of yarns and a roller 2 movable between an inoperative position and an operative position in which it contacts the yarns without slip. As shown, Fig. 1A, roller 2 is moved to and from its operative position through a rack and pinion drive 6 by a reversible motor. The roller may be started to rotate before it engages the yarn, Fig. 5C (not shown). The yarns may pass round two parallel cylinders 1a, 1b Fig. 2C mounted on shafts 2a, 2b carried by a support 15 pivoted by motor 16 between engaging and disengaging positions. In another arrangement, rollers 1a, 1b, 1c are carried on shafts 2a, 2b, 2c, shafts 2a, 2b being carried on levers operated by an air cylinder to move them between a position where yarns pass between roller 1c and rollers 1a and 1b and a position where the yarns are caused to engage roller 1c, Fig. 3A. In a further arrangement, an electromagnetic brake 9 acts on two cylinders round which the yarn passes, Fig. 4E, and a stop motion comprising a brake 11 applied to the rollers in the event of a yarn breakage or the like is provided.