baber/WOPTO huggingface dataset:
Patent GB-940822-A (GB)
Title: Disc brake
IPC: F16D55/15
Filed: 1962-02-28
Abstract: 940,822. Disc brakes. BENDIX CORPORATION. Feb. 28, 1962 [March 23, 1961], No. 7845/62. Addition to 898,399. Heading F2E. A disc brake comprises a casing 14 through which extends a rotatable shaft 42 and which has spaced friction surfaces 60, 62 adapted to be engaged by a pair of friction discs 52, 54, a driving member 46 secured to the shaft, camming means disposed between each disc 52, 54 and the member 46, and means for gripping the outer periphery 66 of the discs to effect retardation thereof relatively to the member 46 and subsequent spreading of the discs by the camming means. As shown balls 56 are disposed within inclined recesses 49, 50 in the member 46 and discs 52, 54 and cause the discs to rotate with the member 46. Two halves 70, 72 of a band brake 68 having friction linings 74 are anchored at one of their ends on sleeves 30 spacing apart the plates 24, 26 and are attached at the other of their ends to an actuator having links 86 pivotally connected to a draw rod 88. On actuation of the rod 88 the band 70, 72 engages flanges 66 on the discs 52, 54 so as to effect retardation thereof relative to the member 46 thereby causing balls 56 to move upwardly on the inclined recesses 49, 50 and spread the discs to engage with faces 60, 62 of the plates 24, 26. Brake noise is reduced since the band reduces the face of impingement of the discs against plates 24, 26. When the brake is released the spring 64 urges the discs away from the plates 24, 26. The balls 56 may be replaced by rollers and only one disc may be provided with an axial portion 66.
Patent GB-557981-A (GB)
Title: Improvements in or relating to brake holding devices
IPC: B60T11/10
Filed: 1942-06-09
Abstract: 557,981. Vehicle brakes. BENDIX AVIATION CORPORATION. June 9, 1942, No. 7877. Convention date, June 9, 1941. [Class 103(i)] Vehicle brake-holding devices, of the kind which operate automatically in certain circumstances to hold the brakes applied even when the brake pedal is released, include control means consisting of two control devices each having an operative and an inoperative position, and both of which must be in the operative position to render the brake-holding device operative, the first device being operative only when the brakes are applied and the second being responsive both to deceleration of the vehicle and to the position of one of the control members of the vehicle (such as the accelerator pedal) so that when the control member is in the position which it occupies when the vehicle is running the second device remains in the inoperative position, while when the control member is moved to the position it occupies when the vehicle is stationary, deceleration of the vehicle consequent upon the application of the brakes will maintain the second device in the inoperative position, until'the vehicle comes to rest, whereupon it moves to the operative position to render the brake-holding device operative. In the construction of hydraulic brakes shown both control devices are electric switches 28, 29 in series in a control circuit for a solenoid which, when excited, closes a valve 25 between a mastercylinder 23 and the brakes so as to retain the brakeapplying pressure. The switch 28, constituting the first control device, receives the brake line pressure on a flexible diaphragm 62, Fig. 7, serving to bring together, first, contacts 59, 61 for a stop-light and then, under increasing pressure, contacts 58, 65 of the solenoid circuit so that the first control device is in the operative position. The second control device is constituted by the gravity switch 29, shown in Fig. 9 with the accelerator 30 released so that the switch is positioned so as to be closed, when the vehicle is at rest, and the brakes are held applied owing to the solenoid circuit being completed ; prior to this, deceleration produced by the brakes will have caused the mercury to move forward and keep the switch open. The valve 25, which retains the brakeapplying pressure when closed by means of the solenoid 39 as shown in Fig. 3, comprises two oppositely-directed ball-valves 35, 36 held closed by plungers 37, 38 under the action of the solenoid 39 when the solenoid is inactive and the brakes are applied, fluid from the master-cylinder passes through a passage 42 and a passage 43, controlled by valve 36, into the brake-lines. The closing force exerted by the plunger 37 is, owing to its small size and position, the equivalent of that which would be exerted by a light spring ; but the closing force exerted by the plunger 38 is large enough to resist ordinary braking pressure but not so large as to resist excessive pressure such as may arise from heating of the brake drums.
Patent GB-640419-A (GB)
Title: A process for the dyeing of textile fibres
IPC: D06P3/16
Filed: 1948-03-17
Abstract: Textile fibres having an affinity for acid dyes are dyed by immersing them for a short time at a temperature not exceeding 50 DEG  C. in a dye liquor, removing them before exhaustion of the dye liquor is approached, removing excess liquor, and fixing the dye on the fibres by drying or exposing to water vapour or steam at a temperature above 40 DEG  C., e.g. at 90-140 DEG  C.  Surface active dyes are those which in solution have an equilibrium surface tension with air of less than about 60 dynes per centimetre at 20 DEG  C.  A small quantity of electrolyte which does not precipitate the dye may be added to the dye liquor, and the dyeing may be improved by charging the fibres positively by treatment with a cationic surface active agent.  In examples: (1) knitted wool fabric is immersed in a dyebath containing Carbolan Crimson BS and ammonium acetate at 25 DEG  C., removed, squeezed and dried at 80 DEG  C.; (2) and (3) wool yarn is immersed in a dyebath containing Carbolan Violet 2RS, or Carbolan Yellow 3GS at 22 DEG  C., withdrawn, extracted with a centrifuge and steamed at 105 DEG  C.; (4) and (5) nylon or cotton fabric is immersed in a dyebath containing Carbolan Crimson BS and ammonium acetate at 22 DEG  C., and finished as in (2), (6) wool is pretreated in a solution of cetyl trimethyl ammonium bromide, rinsed, and dyed as in (1), and (7) the whole process of (6) is repeated four times to get a deeper shade.
Patent GB-567758-A (GB)
Title: Improvements in or relating to building construction frames and the like
IPC: E04B1/20
Filed: 1943-05-20
Abstract: 567,758. Building construction. JOHNSTON, P. L. G. May 20, 1943, No. 8047. Convention date, June 12, 1942. [Classes 20 (i), 20 (ii) and 20 (iv)] Stanchions 1 are provided with openings 4, 5 at the ends to receive the longitudinal beams 2 of the frame of a building, the openings being of sufficiently greater width than the beams to accommodate the heads or nuts of securing bolts. Cross beams are placed against the sides of the stanchions. The stanchions are narrow, and several may be used together, holes 7 being provided for bolts. Cross bracing 6 may be provided, or the stanchions may be solid.
Patent GB-1282192-A (GB)
Title: Improved inventory control apparatus
Inventor: HOWARD JOSEPH DESYLVA
IPC: G06Q10/08
Filed: 1970-02-19
Abstract: 1282192 Digital inventory systems J D HOWARD 19 Feb 1970 [14 July 1969] 8135/70 Heading G4H A system for use, for example, in a shop for maintaining a continuous inventory of a variety of items, the items bearing visible code marks which are the same for similar items, comprises a magnetic core memory unit 31 capable of storing data in three sections corresponding to each item, means for registering the codes of items sold, means 38 for scannning the memory and means for producing an agreement signal when the code scanned is the same as the code registered, the corresponding price and inventory values, means for subtracting one from the inventory value and replacing it in the memory and passing it to a printer. The scanner 38 scans the memory at high speed, e.g. 60 times a second. As the items sold move past the operator he reads the code numbers and registers them on a keyboard 42. The code is converted to binary form at 41 and applied to the write portion 36a of the memory. When the corresponding code is scanned, each digit is applied to a group of gates 61-63 to which is also applied the output from the corresponding read head. If the digits agree a signal is passed to And gates 73, 74, 76 having other inputs responsive to other digit comparisons. When all the digits agree an output 78 is produced from gate 77. The signal 78 via gate 82 operates flip-flop 83 to give a signal 84 to gate the price and inventory values from read heads 37b and 37c to flip-flops 86, 93 which in turn apply to printer 88, 96. The inventory value flip-flops 93 are connected to a buffer counter 97 to enter the inventory number into the counter. At the end of the scanning cycle an output pulse 101 from the scanner is applied to the counter 97 to reduce the value by one. This reduced value is re-entered into the store in the next cycle. When it is necessary to insert data in the memory the item code matrix 69 is directly connected to the write circuits via switch 116, and entry keyboard 118 is operated transmitting signals through price input matrix to write circuits 36b. Entry is under the control of a signal on line 119. The inventory input matrix 121 is connected to write circuits 36c through switch 122 in " write " position. Empty locations in the memory are identified by the fact that they are filled with " 1's." New items are added to the inventory by entering a code on keyboard 71, the price on keyboard 118 and quantity on keyboard. Flip-flop 131 is set to open gate 63 so that when a storage location is scanned which is filled with " 1's " all gates 63 give an output and a signal appears on line 78, passes through gate 81 and switch 91, to step counter 136 which thereby records the first vacant position of the store. On the next cycle the counter gives an enabling pulse at this count so that the valves registered on the input keyboard are written into this position of the memory.
Patent GB-685645-A (GB)
Title: Improvements relating to electric motors
IPC: H02K5/14
Filed: 1950-03-31
Abstract: 685,645. Commutators for dynamo-electric machines. WOLF ELECTRIC TOOLS, Ltd., and GUBBINS, C. H. March 31, 1950, No. 8136/50. Class 35. A commutator has L-shaped segments 23 having the outer radial face 23b of the vertical limb as the contact surface against which axially placed brushes 24 bear and the limb 23a embraced by the material of the rotor. The brushes 24 are of wedge-shape in crosssection and are accommodated in a brushholder having a flange 25 and two spaced legs 26 through which wedge-shaped holes are provided to receive the brushes 24. A bearing bush 42 is carried by the brush-holder between the legs 26 and the lubrication of this bush 42 is effected by providing a lubricant impregnated washer 44 in contact with a complimentary bearing bush 43 placed within the other bush 42. Specification 667,508, [Group XXXVII], is referred to.
Patent GB-274004-A (GB)
Title: Improvements relating to power press guards
IPC: F16P3/06
Filed: 1927-03-24
Abstract: 274,004. Senior, J. E. March 24, 1927. Guards, controlling. - "Pendulum" " type guards e for power presses are actuated by a straight double-armed lever g, which is fulorumed on the pivot d of the pendulum c, one end being coupled by a link i to a bracket k on the ram l and the other end adjustably connected by a curved and slotted link h to an extension of the pendulum c.
Patent GB-1102997-A (GB)
Title: Improvements in or relating to rotary fluid pressure devices
IPC: F04C2/10
Filed: 1966-02-24
Abstract: 1,102,997. Rotary pumps and motors. DANFOSS A/S. Feb. 24, 1966 [March 5, 1965], No. 8189/66. Heading F1F. A rotary internally-meshing gear pump or motor in which the externally-toothed gear has a smaller number of teeth than the internallytoothed gear and the centre of one of the gears, orbits in a circular path, includes a distributer valve comprising a first valve disc 14, Fig. 1, rivetted to the internally-toothed gear 11 and a second valve disc 3 secured between stationary housing parts 2, 4. The disc 14 is formed with a plurality of radial longitudinally extending slots 17 connected one to each tooth space 19 between the teeth on the gear 11 by drillings 18 and to the disc 3 with pairs of parallel slots 20, 21, Fig.2, which are substantially parallel to the slots 17 and spaced apart equal to or wider than the width of the slot 17. The slots 20 communicate through drillings 22, annular channel 23 with an inlet 24 which in the case of a pump is connected to a lowpressure source and in the case of a motor a high-pressure source, whilst the slots 21 communicate through drillings 25, annular channel 26 with an outlet 27, discharge in the case of a pump and exhaust in the case of a motor. A further disc 13 is rivetted to the other side of the gear 11, so that as the externally-toothed gear 10 is rotated by or rotates, via a splined connection 9 and a shaft 6, the gear 11 together with the discs 13, 14 orbit in a circular path about the centre of the gear 10 with the disc 14 alternately opening and closing the slots 20, 21 in the disc 3 to connect the tooth spaces 19 either with the inlet 24 or the outlet 27. Rollers 16 surrounding bolts 5 securing the housing parts together, co-operate with arcuate recesses on the peripheries of the discs 13, 14 to permit the orbiting of the gear 11 and discs 13, 14. Annular pistons 32, 33 are urged by fluid-pressure transmitted from slots 20, 21 respectively against the disc 13 to pressure balance the separating forces between the discs 14, 3. Instead of the pairs of slots 20, 21 being located in the disc 3. A plurality of slots, e.g., 20 may be located in the disc 3 whilst the slots 21 are located in a similar disc on the other side of the gears.
Patent GB-850799-A (GB)
Title: Container for cake-mixture enclosing sugarflowers or the like for decoration
IPC: B65D5/42
Filed: 1957-03-13
Abstract: 850,799. Packaging ; boxes. JOTKOE, A. March 13, 1958 [March 13, 1957], No. 8214/57. Classes 18 and 94(1). A container 1 for a cake mixture has a tray 9 supporting sugarflowers 10 or the like below a window 7. The sugarflowers may be protected by a spacer member 12. The tray 9 rests on the cake mixture 8, or on lugs or flaps formed in the container 1, or on auxiliary pieces on the container walls.
Patent GB-122573-A (GB)
Title: Improvements in or relating to Vehicle Tyres.
Inventor: TAYLOR ELI J
IPC: B60C7/16
Filed: 1918-05-16
Abstract: 122,573. Taylor, E. J. May 16, 1918. Metallic spring bodies and cores.-A resilient device adapted to fit within an ordinary tyre cover 4 comprises a metal band 7 bearing inside a rubber &c. cushion 6, and one or more metal bands 12 with interposed rubber &c. blocks 13 arranged in spaced and staggered order. The innermost series bears on an expansible security-ring 14 between which and the flanges 2 of a divisible rim the tyre edges are secured by clamps 3. The band 7 is expanded into position, its ends, as well as those of the bands 12, being secured by slotted plates 9 engaging hooks 11 projecting from the bands. To prevent creeping of the parts, headed studs such as 16 project from the bands into recesses 15 in the cushion 6 and blocks 13.
Patent GB-350961-A (GB)
Title: Improvements in or relating to magneto-electric machines
IPC: H02K21/20
Filed: 1930-03-14
Abstract: 350,961. Magnetos. SOC. DES MOTEURS SALMSON, 68, Rue Pierre Charron, Paris. March 14, 1930, No. 8274. Convention date, April 13, 1929. [Class 35.] In a magneto of the rotating magnet type with two or more make-and-break devices actuated by a cam in such a manner that the circuit of the primary is interrupted by each of the contacts alternately, the cam is mounted on the distributer sleeve which is centred on a shaft carried by the magneto frame. In the form shown, the distributer brush holder 23 and the cam 47 are mounted on the sleeve 24 which is centred on the shaft 1b attached to the casing and driven by the magnet shaft 9 through the internally toothed wheel 25a and the pinion 12. The cam 47 oscillates the earthed circuit-breaking arms 43, 44, Fig. 2, which break the circuit of the primary current reaching the plate 40, at contacts 41, 42, which are connected in parallel and actuated alternately. The secondary current flows through the connections 21, 29, 27, and brush 28 to the brush 26 of the holder 23 which distributes it to the external terminals 33. The permanent magnet 6, and the polepieces 7 at its ends, which are tapered, are secured by the cheeks 8a, 10, the cheek 8a being integral with the shaft and the cheek 10 removably attached thereto. In modified forms, the magnet 6 may be replaced by a split solid cylinder, or by a rectangular bar, the laminated polepieces being mounted at the ends, as in Fig. 1. The number of polepieces, and the gear ratio may be varied to give the required number of sparks, the arrangement shown in Fig. 1 being suitable for a four-stroke cycle six cylinder engine, there being a 2-3 gear ratio, and the cam having three flat parts and three bosses.
Patent GB-363247-A (GB)
Title: Improvements in and relating to electric thermal relays
IPC: H01H71/16
Filed: 1931-03-18
Abstract: 363,247. Automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Weber, L. J. ; 1409, Myron Street, Schenectady, New York, U.S.A.) March 18, 1931, No. 8354. Convention date, March 18, 1930. [Class 38 (v).] A thermal relay comprises a bimetallic element supported at one end, a removably-mounted electrical heater encircling an intermediate portion of the element, and a movable member co-operating with the free end of the element and operable away therefrom to permit removal of the encircling heater. The invention is shown applied to a threephase motor-starting switch 10 pivoted at 11 and operated by an electromagnet 13 controlled by a pushbutton. The operation of the switch completes a hold-on circuit by means of a contact 46. Thermal relays 14, 14<1> are arranged in two of the phases, and, on overload, are tripped to move a bar 15 to open a switch 16 in the hold-on circuit, thus opening the switch 10. The construction of relay is shown in disassembled relation in Fig. 3. Each relay consists of a bimetallic strip 25 secured at its upper end to an L-shaped member 22 which carries a pivoted tripping member 28 tending to move upwards under the action of a spring 30. The bimetallic strip 25 normally prevents movement of the member 28 and a notch 31 enables the amount of overlap to be accurately determined when resetting. The heating element comprises a coiled resistance wire 32 adapted to surround the thermal element. The frame 22 is attached to a support 20 together with the upper end of the thermal element the lower end of which is fixed to a second support 21. On overload the trip 25 bends outwards to release the member 28 which moves the bar 15 to open the switch 16 in the holdon circuit. After the thermal strip has cooled, the bar 15 is moved downwards by means of a pushbutton 40 and the member 28 is moved into engagement with the thermal strip. The heater is made readily removable to adapt the switch to various time-lags and overloads.
Patent GB-739667-A (GB)
Title: Improvements in unbalance vibrators
Inventor: BEIERLEIN KARL
IPC: B06B3/00
Filed: 1954-03-23
Abstract: 739,667. Vibratory mechanism. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU AKT.-GES. March 23, 1954, No. 8419/54. Class 80 (4). A vibrator 6 comprising an electric motor on whose shaft unbalancing members are fitted, is swingably mounted on a non-rotatable shaft 3 through roller bearings 5 so that directional vibrations are transmitted to a screwing-on plate 1 of the unit, the transverse vibrations being absorbed by the swinging movements, and according to the invention the swinging movements are resiliently controlled by two rubber rings 7 which are vulcanized to inner and outer steel rings respectively keyed to the stationary shaft 3 and clamped to attachments 10 carrying the vibrator. The shaft 3 is adjustably clamped by screws 4 to the plate 1 so that the direction of the vibrations transmitted to the plate may be varied. It is stated that the rubber rings 7 may be replaced by a rubber tube on the shaft 3 or by rubber members between the bearings.
Patent GB-1209355-A (GB)
Title: Improvements in or relating to water cooled electrical cable systems
Inventor: HITCHCOCK JOHN ALAN
IPC: H02G15/24
Filed: 1968-02-21
Abstract: 1,209,355. Sealing cable joints. CENTRAL ELECTRICITY GENERATING BOARD. 20 March, 1969 [21 Feb., 1968], No. 8434/68. Heading H2E. A cable joint seal in an oil-filled cable comprises a box 20, preferably bitumen-filled and of glass fibre, and pipes 24, 25, 26, 27 circulating coolant, for example water, placed close to a shell 23 which surrounds the joint of the cable core 21. Cable core 21 is enclosed in dielectric 22. A single flexible pipe (34, Fig. 3, not shown) helically wound around shell 23 may replace pipes 24-27.
Patent GB-529577-A (GB)
Title: Improvements in and relating to electric regulating systems
IPC: H02P9/28
Filed: 1939-03-16
Abstract: 529,577. Automatic control systems for dynamo - electric machines; converting. BRITISH THOMSON-HOUSTON CO., Ltd. March 16, 1939, No. 8447. Convention date, March 17, 1938. [Classes 38 (ii) and 38 (iv)] Voltage.-The field winding 3 of a synchronous machine 1 is supplied with D.C. from an A.C. circuit 15, to which the main winding 2 of the machine is also connected, through a rectifier comprising a transformer 14 and immersion-igniter valves 9-13. Control impulses for these valves are obtained from grid controlled valves 30 which receive lagging alternating control potentials from a transformer 41, the moment of ignition being determined by means of a variable-negative D.C. bias introduced in the circuit between the neutral point connections of the windings 43, 44 and the cathodes of the valves 9-13. This includes a constant bias across a resistance 79 supplied by a rectifier 75, and a bias across a resistance 48, supplied by a rectifier circuit 45, which varies in dependence on the potential of the circuit 15 and effects regulation of the main rectifier to adjust the potential of the machine 1 to constancy. An overriding control is provided by a bias across the resistance 86, which gives the machine 1 a drooping characteristic after a predetermined load has been reached. This is effected by means of an arrangement 80, comprising rectifiers 82-84 supplied from current transformers 81, which produces a potential proportional to the load current, which is applied, in opposition to a constant potential across a tapped portion of a resistance 88, to the resistance 86. To prevent the current through the winding 3 being reduced below a predetermined value, a circuit 103 is provided comprising valves 105 connected to shunt the resistances 48, 79 and 86 through a resistance 49 and which become conductive in response to a predetermined minimum voltage across the winding 3 to limit the amount of negative bias across these resistances. In the event of a sudden reduction of current the energy in the windings 3 discharges through the valves 8-13 which temporarily act as an inverter. An overriding biassing circuit 100 for limiting the maximum current through the field windings 3 is provided and is operated by a relay 94 in response to overload. A further overriding biassing circuit completed by a press button switch 116 is provided for use during starting. The valves 60 in the circuit 45 and the valves 105 in the circuit 103 are duplicated to avoid failure.