baber/WOPTO huggingface dataset:
Patent GB-595112-A (GB)
Title: Improvements relating to electrical switching apparatus
IPC: H01H21/18
Filed: 1945-07-06
Abstract: 595,112. Motor controllers. ENGLISH ELECTRIC CO., Ltd., MARDIS, P. L., SMITH, S. A., and WILSON, F. July 6, 1945, No. 17260. [Class 38(iii)] A controller comprises switch arms independently pivoted about a common axis and spring biassed towards fixed contacts, and a rigid structure pivoted on the same axis and carrying a bar parallel to the axis so that movement of the structure may cause the bar successively to engage the switch arms and open the switch contacts successively. The structure may carry a second bar co-operating similarly with a second set of switch-arms spring biassed in an opposite sense so as to close their switch contacts successively as the others open. Each switch-arm 13, moulded in insulating material, turns freely on the shaft 14. A bar 24, when turned clockwise about the shaft by the crank 26 pinned to the shaft, engages in succession adjustable screws 25, to turn each arm clockwise against the force of spring 22 anchored either to the frame or to a further rod carried by a further crank on shaft 14. Each arm carries a bridging contact member 16 arranged to engage contacts 11 and 12 with a wiping action. To provide some contacts which open while others close, reversed arms each identical with arm 13 may be mounted on shaft 14 and operated by an additional bar nearly diametrically opposite bar 24. The angular movement between successive contact separations or engagements may be only a few degrees and the total movement of shaft 14 for operating say a dozen switch arms may be about 30 degrees. A trolley-bus controller may have, in addition to a reversing switch, two shafts such as 14 with contact arms - one controlling power and the other electric braking. The power control shaft is biassed to the " off " position by a spring strong enough to overcome springs 22 and is connected to a power control pedal by a crank, a partly insulating linkage and ball joints. The brake control shaft, which has a spring biassing it to the " on " position and a stronger opposing spring, is similarly connected to a brake control pedal but with lost motion; as the brake pedal is depressed the brake control shaft is allowed to move towards the " on " position where it is arrested by a stop while the pedal can be further depressed to apply mechanical braking.
Patent GB-323009-A (GB)
Title: Improvements in or relating to translucent fabrics, paper and the like
IPC: D06M13/08
Filed: 1928-06-15
Abstract: 323,009. Brandt, H. O. June 15, 1928. Translucent paper.-Fabrics 3, of paper &c., treated to render them permeable by ultra-violet rays with a mixture of paraffin, beeswax, and petrolatum are provided with apertures 4 for admitting ordinary light. The apertures may be covered with glass or other transparent material 5, or, where the material is used in the lights of horticultural frames, the holes may be provided with extending edges 6 to prevent rain from flowing over the surface and passing through the holes.
Patent GB-913197-A (GB)
Title: Improvements in hydraulic systems
Inventor: ERNST WALTER
IPC: F04C14/22
Filed: 1960-05-17
Abstract: 913,197. Grinding. THOMPSON GRINDER CO. May 17, 1960, No. 17399/60. Class 60. [Also in Groups XXVI and XXIX] An hydraulic system for a machine tool, such as a grinding machine, comprises a variabledelivery pump 30, Fig. 1, connected in series with a restrictor 50 and an hydraulic motor 20, a first fluid operable area adapted for urging the pump towards increased displacement and connected to the downstream side of of the restrictor, and a second fluid operable area opposed to the first operable area and connected to the upstream side of the restrictor. The areas are provided by a piston 48 which is movable in a cylinder 46 connected by pipes 52, 66 to opposite sides of of the restrictor, the piston being connected by a plunger 42 to the displacement-varying member 32 of the pump and being movable against an adjustable spring 38 which acts to urge the member 32 to the maximum displacement position. The restrictor is connected by a reversing valve 24 to the motor 20 which may reciprocate a work-table 10 beneath a grinding wheel 12. In operation, the pressure differential across the restrictor controls the position of the piston 48 and member 32 in such a way that the pump discharge is substantially constant and the motor 20 is driven at a constant speed. The pipe 52 may be replaced with an internal passage in the pump and a bore 60 in the wall of the cylinder 46. The outward movement of the piston may be limited by an adjustable stop to determine the maximum output of the pump. To compensate for the reduction in discharge which may occur when the pump is under load, a rod 84, Fig. 4, of larger diameter than the plunger 86 is provided on the side of the piston connected to the upstream side of the restrictor 88, and a throttle valve 94 is interposed in the line from the downstream side of the restrictor. A relief valve 92 and a manually-adjustable valve 96 are connected between the valve 94 and a reservoir 36. A plurality of motors M1, M2, Fig. 5, which may drive the work-table and wheel-head of the grinding machine, controlled by reversing valves 106, 110 may be driven from a pump 100 which is connected by a line 102 and restrictors 104, 108 to the motors. The downstream sides of the restrictors are joined by lines 112, 120 and one-way valves 114, 122 to a line 116 leading to one side of the piston 118, the other side of which is connected to the line 102. A line 124 from the line 116 leads to a throttle or relief valve and the reservoir 126.
Patent GB-357089-A (GB)
Title: Control device for vehicles with internal-combustion engines and electrical transmission by means of direct-current generator, especially for diesel-electric vehicles
IPC: H02P9/00
Filed: 1930-06-05
Abstract: 357,089. Dynamos and motors combined for transmitting power. MASCHINENFABRIK OERLIKON, Oerlikon, near Zurich, Switzerland. June 5, 1930, No. 17413. Convention date, Nov. 2, 1929. [Class 38 (iv).] The field excitation of a direct current generator O as shown in the Figure, in a vehicle power system employing an internal conbustion engine and electrical transmission is controlled in accordance with the action of the engine fuel governor by means of a lever a which is moved by the governor over contacts e, c, b, d on a controller f to energize a reversible motor i driving a field rheostat q. The drum f is set by hand to a position in accordance with the travelling speed desired. The engine governor setting for the different speed settings is adjusted by means of current coils h, g. The position of the governor determines the position of the lever a which is arranged so that movement of contacts on either side of the contact on which the lever a normally rests energizes a reversible control motor i to strengthen or weaken the generator field r. A relay n opening the motor circuit of the generator current exceeds a predetermined value.
Patent GB-685208-A (GB)
Title: Improvements in and relating to carpet sweepers, vacuum cleaners and textile finishing machines
IPC: A47L9/04
Filed: 1949-07-01
Abstract: 685,208. Brushes. BLUE, J. F. A. June 30, 1950 [July 1, 1949; Nov. 3, 1949], Nos. 17475/49 and 28207/49. Classes 19 and 138 (i). A carpet sweeper, vacuum cleaner, textile finishing machine or the like is provided with one or more rotatable brushes each formed of a spindle, and, secured to the spindle, a number of helical and radially projecting flat strips, with non-interrupted outer edges formed of sponge rubber, crepe rubber or foam latex rubber. 'If desired the brush may be provided with bristles between the strips. In Figs. 1 and 2 the brush is carried by a spindle c which at each of its two ends has a roller d fitted, the roller making frictional contact with the treads of the carpet engaging the wheels e. The brush is provided with flat strips f of rubber each strip projecting radially from the roller and forming a partial helix round its spindle. An alternative form of brush, for a vacuum cleaner, is shown in Fig. 3 in which the spindle s is provided with two helical brushing elements, t and t<SP>1</SP>, one on each side of the transverse central line. The brush is fitted in the suction inlet of the machine and is driven by a band u which is passed over a pulley on the suction fan spindle and over a central groove s' in the spindle. Specifications 363,865 and 642,819 are referred to.
Patent GB-807846-A (GB)
Title: Screw-driving machines
Inventor: BROWN CALVIN O
IPC: B23P19/00
Filed: 1955-06-21
Abstract: 807,846. Screwing-up screws. SET SCREW & MFG. CO. June 21, 1955, No. 17581/57. Divided out of 807,845. Class 83 (3). A screw-driving machine comprises driving means S for engaging a longitudinally - asymmetric headless screw, and driving it axially into a preformed screwreceiving bore formed in an article 113, feeding-means N for feeding said screw in predetermined end-orientation to said driving means, and positioning means 105, Fig. 5, engageable within a screw-receiving bore 115 in the article 113 for positioning the bore in alignment with the axis of the screw to be driven therein. As shown, screws from bowl O, Fig. 3, are caused to ascend the spiral conveyer-track 33 by vibrating the bowl so that the screws arrive at 33<SP>1</SP> and fall between rotating rollers 41. The correctlyorientated screws fall between the grooves 48 down tube N and the incorrectly-orientated screws are discharged at 59. A screw falling down tube N arrives in front of a reciprocating bar 69 and the latter pushes it between a pair of resiliently-held jaws 77. The screw is then driven by screwdriver S into bore 115 of knob 113, the latter having been manually placed over the spring-urged positioning-detent 105. As the screwdriver S withdraws, it closes a switch 123 which operates a solenoid 122 to operate a valve 121 so that the piston 94 of an air-motor M advances to discharge knob 113 by means of two pins 117 and at the same time, by means of a pusher-foot 95, to displace the bar 69 and thus advance the next screw to a position between the resilient jaws 77 for the next cycle.
Patent GB-366408-A (GB)
Title: Improvements relating to impulse transmitters used in telephone systems
IPC: H04M1/23
Filed: 1931-06-18
Abstract: 366,408. Impulse transmitters. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. June 18, 1931, No. 17703. Convention date, June 18, 1930. [Class 40 (iv).] A transmitter 1 of the dial type is set by means of an arcuate finger-plate 11 mounted on a shaft 8 which is geared to the shaft 2 of the dial through a toothed segment 4 and a pinion 3, the end of the slot 17 in the cover-plate 13 serving as a finger-stop. The return movement may be effected by the usual restoring spring of the dial or by a spring attached to the segment 4. A weight 7 adjustably suspended from the segment 4 serves to balance the parts mounted on the shaft 8. The finger holes may be arranged in two rows, which need not be staggered if the end of the slot 17 serving as the finger-stop is suitably shaped. A number strip 12 is mour.ted below the finger-plate.
Patent GB-501842-A (GB)
Title: Improvements relating to electric protective apparatus
IPC: H01H71/32
Filed: 1937-06-25
Abstract: 501,842. Electromagnetic and magnetic switches ; mercury switches. CLANCHI, A. June 25, 1937, No. 17791. [Class 38 (v)] A single or double pole main switch 1, 1<1> is moved to the closed position either by energization of an electromagnet or, as shown in Fig. 1, by movement of a permanent magnet 7 into its dotted position and is maintained in the closed position either by the magnet 7 or by another magnetized member, the magnet 7 or the other member being demagnetized or its magnetism neutralized by an overload or fault current to allow the main switch 1, 1<1> to resume its open position. In the form shown in Fig. 1, adapted for alternating current, the switch 1, 1<1> is a mercury one of the general type described in Specifications 484,987 and 485,269 and the main circuit includes an overload coil 9 wound on a magnetic member 8 and fault current is adapted to flow through a coil 10 also on the member 8. A rectifier 11 is included in the circuit 10 so that a " fault " current through the coil 10 or an induced current in the coil 10 from the overload coil 9 is unidirectional and exerts a magnetic force that demagnetizes the magnet 7 and allows the switch 1, 1<1> to open. A latch 13 operated by a coil 14 in the circuit 10 prevents the magnet 7 being moved to close the switch if a " fault " current is flowing. In modifications, the float 4 is held in the " on " position by electrodes magnetized by permanent magnets themselves adapted to be de-energized, or moved out of action. In the modification shown in Fig. 4, overload current through a coil 9 heats a bimetal strip 22 which closes a circuit 24 demagnetizing an electrode 3 that has been holding down an armature 19 on the float 4. Specifications 485,564 and 493,355 also are referred to.
Patent GB-1288443-A (GB)
IPC: H01Q19/02
Filed: 1970-04-14
Abstract: 1288443 Cryogenic component assemblies COMPAGNIE GENERALE D'ELECTRICITE 14 April 1970 [ 14 April 1969] 17826/70 Heading H1R A high frequency antenna head consists of a low-noise amplifier and its filter, and connecting circuit equipment adapted to convert and to transmit the signals transmitted and received, all contained in a cryogenic enclosure. The amplifier and its filter are maintained at a lower temperature than the rest of the equipment, in a volume bounded within the cryogenic enclosure by a thermal screen. The connecting equipment, comprising a filter, a duplexer, a polarizer and a tracking signal extractor head, is connected to a metal plate, which acts as a good thermal connector between the equipment and a closed-cycle gaseous helium cooler, thus maintaining the equipment at approximately 77‹ K. A second similar cooler is connected to the amplifier and filter within the smaller bounded volume, to maintain those at a temperature of approximately 20‹ K. The thermal screen bounding this volume may consist of a partition having a reflective metallic surface. The cryogenic enclosure may be contructed in the form of a cylindrical body on which there are fitted, in thermally tight manner, upper and lower covers, through which connections are made to the automatic tracking equipment, the transmitter, external power supplies and the coders. This arrangement gives a total noise temperature of only 24‹ K.
Patent GB-497799-A (GB)
Title: Improvements in fluid-pressure-operated stamps and the like
IPC: B21J7/24
Filed: 1937-06-28
Abstract: 497,799. Liquid pressure engines. MASSEY, Ltd., B. & S., and MASSEY, H. F. June 28, 1937, No. 17903. [Class 69 (ii)] [Also in Groups XXII, II, and XXVI] A power stamp with fixed or movable anvil and in which the tup is separated from the anvil by the pressure of a liquid supplied to a cylinder, has elastic fluid means for accelerating the return movement of the tup. As shown, the tup 12 is provided with a pair of cylinders 13<1>, 13<11>, which are forced upwards by oil under pressure entering above pistons 15<1>, 15<11> respectively from pipes 16<1>, 16<11> connected to a pipe 18 leading to a valve 24. The valve controls a port leading to the pipe 18 and a second port leading to an oil pipe 23 delivering from a pump 21. A suction pipe 22 leads from the pump to a tank 20. Also unitary with the tup is a third cylinder 14 having a fixed piston 27 with a tubular piston rod through which air is supplied from a pipe 29. A curved lever 25 is moved by the tup as it rises to the top of its stroke and transmits motion through a lever 25<11> to a rod 26 having adjustable striking stops 26<11> thereon. At the top of the stroke the lower stop engages a finger 29 on a rod 30 connected by a rod 32 to a lever 33 connected to a rod 34 attached to the piston valve 24. Specification 497,826, [Group XXII], is referred to.
Patent GB-658008-A (GB)
Title: Improvements in or relating to the manufacture of tyres
IPC: B29D30/32
Filed: 1949-07-06
Abstract: 658,008. Pneumatic tyres. ARNOLD, J. C. (National Rubber Machinery Co.). July 6, 1949, No. 17912. [Class 144 (i)] In a tyre-building machine of the flatband type, the edges of the fabric plies overhanging the ends of the rotary drum are folded over and under the bead cores by means of a pair of stitcher rolls mounted on arms which are movable axially of the drum and are carried on supports rotatable about fixed axes and tiltable relatively thereto about at least one angularly-disposed axis. As shown, the roller 1 is carried by an arm 2 mounted on the head 3a of a rotatable support 3 and is capable of universal movement relative to the axis of the support 3. The arm is rocked about its pivot 4 by means of a powercylinder 8 the piston of which is connected by a link 6 to a lever 5 integral with the arm. The head 3a is swingably-mounted on a pivot 12, at right-angles to the pivot 4, and actuated by means of a power-cylinder 16. The support 3 is rotated about its own axis through motor-driven worm-gears 22, 23.
Patent GB-276793-A (GB)
Title: Improvements in and relating to clamping devices for slicing machines
IPC: B26D7/02
Filed: 1926-07-19
Abstract: 276,793. Berkel & Parnall's Slicing Machine Manufacturing Co., Ltd., and Thomas, H. July 19, 1926. Cutting slices in succession; holders. - A slicing-machine clamp bar has differently shaped substance-gripping surfaces adapted independently of one another to grip differently shaped substances, the arrangement being such that by a turning movement any desired gripping surface can be rendered capable of clamping the substance for the time being on the machine, whereas the other gripping surface or surfaces is or are inoperative.. As shown in Fig. 1, the clamp bar 1 has a straight gripping-portion 2 and a curved gripping portion 3 on opposite sides, either portion being brought into operation by the bar. The bar is carried between two yokes 4, 5 removably supported on the usual uprights 6, 7 and bridged by pins 4<1>, 5<1> for engaging the teeth on the uprights. The yoke 4 has a manipulating handle 8 and is prevented from being accidently inverted by a hinged flap 18 which is urged by a spring 19 partly to mask the upper end of the opening 20 in the yoke. The bar is journaled on trunnions 9, 10 having stop pins 11, 12 which engage slots 13, 14 which permit the bar to rotate through an angle of 180‹. The slot 13 is of bayonet-joint form and the trunnion 9 is urged endwise by a spring 15 housed between the trunnion and a lug 15<1> on the bar 1, whereby, the pin 11 is positively engaged with one or other of the notches in the slot 13 and the bar is held against accidental displacement. The stop pin 11 may have slight freedom in the notches to allow the bar to accommodate itself into the most suitable gripping- position. The slots are arranged to permit the bar to be turnable only in a, direction away from the knife, so that fouling of the knife is avoided. If desired, the bar can be looked against all turning movement, by removing the yoke 5 from the upright 7 and replacing it in the inverted position. A knurled grip facilitates the turning of the bar. In the modification shown in Fig. 4, the clamping bar 30 is provided with pivotally mounted members 34, with curved gripping- edges 34<1>. Two pivoted members are provided on each side of the bar, the pairs being connected by their pivot pins 33 and by stop pins 36 which travel along arcuate grooves 37 in the bar. Handles 38 are provided, and the members 34 are held in the operative and inoperative positions by a chisel-edged spring-pressed plunger which is retracted by a finger grip 40. The members are normally kept in the inoperative position by torsion springs arranged around the pivots 33.
Patent GB-770853-A (GB)
Title: Improvements in or relating to headgear
IPC: A42B1/04
Filed: 1955-06-21
Abstract: 770,853. Headgear. CODRON, I. A. June 21, 1955, No. 17981/55. Class 63. A woman's hat is formed from a piece of flexible material, e.g. textile fabric or plastic sheet, of substantially triangular shape with two sides 3 of substantially equal length which are joined together at or about the midpoints thereof, the third side 1 being hemmed to receive a part circular resilient member 2 to fit about the head of the wearer and retain the hat in position. As shown the two sides 3 are formed with angled extensions 4, 5 and are fastened together over the length 6 between the points 4, 5. In use the hair upon the nape of the neck may be enclosed by the open-sided cone formed by the apex of the triangle.
Patent GB-152761-A (GB)
Title: Telephone transmitter
IPC: H04M1/05
Filed: 1919-07-18
Abstract: 152,761. Timmons, J. S. July 18, 1919. Microphones and variable-resistance transmitters; head-sets.-A transmitter for use in noisy places is completely enclosed in a sound-proof casing and is operated by the muscular action of the operator when talking. The diaphragm is loaded to increase the inertia of the movable electrode, while the other electrode is rigidly connected to the casing. The cord is gripped by a tapered threaded gland, and one conductor is connected to the fixed electrode by soldering it to the casing. The receivers are enclosed in rubber caps mounted upon a helmet or head-band to which the strap carrying the transmitter is secured. The terminals of the head-set are connected to a plug coupling. Transmitter. A casing 2, Fig. 3, is provided with web-loops 4 and 5, a hollow chamber 6 containing the microphone, a threaded cover 7, and a tapered threaded gland 22, 23 through which the cord 21 passes. A metal disk 9 is placed between the carbon electrode 11 and the casing 2, and is held in position by a bush 10 which is insulated from the granules 20 by means of a paper lining 12. A diaphragm 13 is held between the bush 10 and a retaining ring 14 and carries an electrode 19 secured to a metal disk 15 provided with a thread shank 16. A weight 18 is secured to the diaphragm 13 by the shank 16 and a nut 17, thereby increasing the inertia of the movable electrode. Head set. The receivers R are enclosed in rubber caps r mounted upon a bead-band 26 or a helmet to which a strap 27 carrying the transmitter T is secured. The conductors of the head set are connected to one of the elements 30 of a plug coupling 30, 31.
Patent GB-1109574-A (GB)
Title: Copy making mechanism
IPC: G03D9/00
Filed: 1965-04-29
Abstract: 1,109,574. Copying documents. EASTMAN KODAK CO. 29 April, 1965 [1 May, 1964], No. 18084/65. Heading B6C. [Also in Division G2] Copy making apparatus in which a copy sheet and matrix are subjected to heat and pressure is characterized by a roller 22 driven from a motor 68, a roller 24 mounted for movement transversely to the roller 22, and a lever 82 which turns a cam 80 to press the two rollers into engagement and which also turns the shaft 74 to operate a switch 88 controlling the motor 68. Heating elements are located inside the rollers. The copy sheet and matrix are inserted through slot 17 and returned through slot 20.