baber/WOPTO huggingface dataset:
Patent GB-480586-A (GB)
Title: Improvements in and relating to magnetic separators
IPC: B03C1/034
Filed: 1936-05-20
Abstract: 480,586. Magnetic separators. FRANTZ, S. G. May 20, 1936, No. 14276. Convention date, May 20, 1935. [Class 72] In magnetic separators of the kind in which a plurality of elongated magnetizable members are arranged in a passage extending through a gap in a magnetic circuit. the to be treated flowing through said passage and being confined by the gap so that a cross-section through said passage in the general direction of the flux will present a multiplicity of discrete crosssections distributed and closely spaced in two dimensions throughout the passage, the elongated members are stationary within the gap, the flux is generated by coils surrounding the gap, and the direction of flow of the materials is in the same direction as that of the flux. In the form shown in Fig. 1, the magnetizable members are in the form of screens 6, Fig. 2, made up of two strips of magnetic material wound in pancake form, each strip having one edge in the top plane and the other edge in the bottom plane of the pancake. The screens are mounted in the passage 14 formed in a shell member 5 provided internally with windings 1 and having end members 3, 4, the member 3 having an opening in which is fitted a hopper 12, the parts 3, 4, 5 being made of magnetic material. When dealing with pottery slip &c., a pipe'7 is fitted in a casing 9 formed within the screen 6 and closed by a cap 11, and is seated in an extension 13 fitting an aperture in the end 4. Apertures 8 are provided in the pipe 7 just below the cap 11, and when the slip &c. is fed in through the hopper 12, it passes down through the screens 6, the purified slip &c. passing into the passage 10 in the casing 9 and through the holes 8 into the pipe 7 and so is discharged. In another form, the pipe 7 is secured to a float provided in the hopper so that it is lifted off its seat in the opening in the end 4. For treating dry materials, the pipe 7 and extension 13 are omitted and the casing 9 is agitated by an eccentric weight mounted on a shaft which passes through the passage 10 for the casing 9 and is rotated. In a further form, Fig. 5, the screens 6 are mounted in all or part of the space between a cone or double-cone member 30, the faces of which and the members 3b, 4b may be corrugated or serrated. The Specification as open to inspection under Sect. 91 also contains the subject-matter of Specification 480,669, and describes a form in which the attractors are straight flat strips placed horizontally across the passage and inclined forward to provide'a number of cascade systems. This subject-matter does not appear in the Specification as accepted.
Patent GB-109677-A (GB)
Title: Improvements in or relating to Brakes for Railway Wagons and other Vehicles.
IPC: B61H9/00
Filed: 1916-10-07
Abstract: 109,677. Bagley, C. J., Cornforth, M., and South Durham Steel & Iron Co. Oct. 7, 1916. Actuated or applied by weight of vehicle ; blocks.- Relates to brakes for railway wagons and other vehicles in which the blocks are forced between the underframe and the wheels in applying the brakes so that the weight of the body is transferred from the springs to the blocks. In order that the blocks may take a proper bearing irrespective of variations in the distance of the underframe from the wheels due to different conditions of loading, the blocks 5 are formed with faces a, b, c which take effect according as the wagon is empty, partially or fully loaded respectively. The blocks are suspended by hangers 6 within a recess t in the timbers T to which a ball bearing plate 8 for the blocks is bolted. A chequered bearing plate may be used. The mechanism may comprise push rods 11 connected to arms 3, 4 on a tumbler shaft 13 which is actuated by the crank 15, link 16 and hand-lever 17.
Patent GB-705642-A (GB)
Title: Improvement in optical cements and optical elements containing such cements
IPC: G02B1/00
Filed: 1952-06-06
Abstract: An optical cement composition comprises diallyl phenyl phosphonate and chlorinated diphenyl and preferably also contains a polymerization catalyst such as benzoyl peroxide or tertiary butyl perbenzoate.  Optical elements having at least two components provided with optical surfaces are made by assembling the components with the above cement composition between and in contact with these surfaces and then heating the assembly to polymerize the cement composition.  Part or all of the heating may take place while the components are held in an aligning fixture.
Patent GB-1262952-A (GB)
Title: A clamping device
Inventor: MORBY JOHN EDWARD
IPC: G11B17/028
Filed: 1969-03-19
Abstract: 1,262,952. Stud and socket fastening. MAGNAVOX CO. 19 March, 1969 [1 July, 1968], No. 14351/69. Heading E2B. [Also in Division G5] A device for clamping a first plate to a second plate with either of two spacings comprises an elongated shank with an actuator 14 at one end, a terminal retaining member 19 and an intermediate clamping member 21. The shank is passed through an elongated slot in the first plate and through a 'T-shaped' slot in the second plate and is then turned through a right angle to engage either the clamping member 21 transversely of the narrow portion of the 'T-shaped' slot to provide one spacing or the retaining member 19 transversely of the wide portion of the 'T-shaped' slot to provide a second spacing. Resilient arm 23 on the shank engage the undersurface of the first plate. The undersurface of the actuator 14 has two central colinear grooves terminating in depressions which engage projections on the ends of the elongated slot in the limiting position of the clamping device therein.
Patent GB-1457180-A (GB)
Title: Fracture reduction apparatus
IPC: A61F5/04
Filed: 1974-04-01
Abstract: 1457180 Orthopaedic traction apparatus S TAMNY and S R TAMNY 1 April 1974 [30 March 1973] 14384/74 Heading A5R A portable apparatus for the reduction of arm or leg fractures, e.g. as shown in Figure 1 a fracture of the forearm, whereby concurrent linear and rotational displacements may be applied to the fractured: limb segments, comprises a pair of parallel spaced apart frame sections 12a-12c and 12a-12c, the central frame sections 12a being elongated and frame sections 12b being tightly secured around the upper part of the arm by a buckle 15 and straps 14, 14a, tension and torsion being applied to the lower part of the arm via "Chinese fingers" 29 attached to a load distribution bar 32 by a cord 33 and rings 38, the bar being adjustably secured to the upper frame sections 12c. Tension is applied to the (bar 32 via a threaded rod 22 pivotally freely mounted on frame section 12c, the bar 32 being tensioned by tightening a nut 28 against an assembly 30 having therein helical springs, so that the amount of tension applied is indicated by the number of markings on null 28 that enter assembly 30. It is stated that the arrangement is self-aligning in, use, so that relative linear and rotational displacements are axiallydisposed to the lower part of the arm. The load distribution bar 32 is rotatable relative to frame sections 12c to apply torque to the lower part of the arm, indication of the amount of rotation being given on a protractor plate (50), Figure 2 (not shown) fixed relative to frame sections 12c by attachment to an arm 52a held therebetween. A locking arm (42) engages the left hand end of bar 32 and is securable to protractor plate (50) by a threaded knob 62 to maintain the desired rotation. To adapt the apparatus to the reduction of a fracture of the lower part of the leg, as shown in figure 10, the frame sections 12b are secured to the thigh, and tension and notation are applied to the, foot via a plaster cast 70 having embedded therein a metal plate 72. Plate 72 threadatbly engages eye-bolts 74 through which the cord 33 is threaded. To enable the patient to walk, a walking heed (80), Figure 11 (not shown) may be secured by bolts (82) to the plate 72 after the plaster cast 70 has set. An x-ray cassette of any size may be mounted to the apparatus in six different configurations by means of a mounting frame 130, Figure 7, the cassette being held therewithin by U-shaped channels 134 and (136), Figure- 8 (not shown) and thumb-screws 138. Mounting frame 130 is secured to either a leg 120a, or, as shown to a leg 120b, of a frame 120 adjustably mounted to frame. section 12a by a member 122, clamping plate 112, bar 116 and screw 114 The frame 120 may be reversed relative to the plane of symmetry of frame section 12a, and mounting frame 130 may be secured in positions 90‹ apart on legs 120a, 120b by the legs engaging grooves (.142), (144) formed on one surface of frame 130.
Patent GB-437251-A (GB)
Title: Electron discharge devices
IPC: H01J17/06
Filed: 1935-05-16
Abstract: 437,251. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Depew, C. ; Oakland Avenue, Oakland, New Jersey, and Ronci, V. L. ; 4009, Foster Avenue, Brooklyn, New York, both in U.S.A.) May 16, 1935, No. 14408. Convention date, Aug. 25, 1934. [Class 39 (i)] A device, preferably gas or vapour filled, has a cathode comprising a casing wherein are disposed three or more tapered zig-zag ribbon sections forming the emitting portion, and each section is attached to the casing at one end and to a central support at the other. In one form, Fig. 3, five ribbon sections 41 are bent zig-zag fashion with their edges adjacent the open end of a shallow casing 34 which is disposed within a heat-insulating casing 30 and insulated therefrom by washers 37 surrounding a rivet 36 which secures it to a slotted plate 39. The ribbons occupy a triangular space in plan, filling substantially the whole of the casing 34, and parallel folds are spaced by washers 43 on an insulating bar 42. At their inner ends the ribbons are connected to tangential fingers 47 on a central rod 48, which is slidable in the heat insulating structure to permit expansion. The leads are secured at 55 and 56 to rod 48 and to a member 50 secured to the plate 39. As shown in Fig. 1, the structure is supported on stays 53 secured to rings 54 on a re-entrant stem 14. The anode comprises a hemispherical block 24 of carbon or graphite and is screwed onto a lead 21 which is sealed into a stem 18 near its end. The end 20 of the stem 18 is flared to form a cup against which rests the bottom of a cup shaped portion 25 of the anode 24. In a modification the anode has a thread on the inside of the portion 25 which is screwed onto a copper thimble sealed to the end of the re-entrant stem. The thimble is closed by a disc which carries an axial rod serving as the lead-in wire. The tube has a filling of mercury.
Patent GB-1044867-A (GB)
Title: Hydrostatic transmission
IPC: F04B49/00
Filed: 1965-04-05
Abstract: 1,044,867. Hydrostatic transmissions. SUNSTRAND CORPORATION. April 5, 1965 [April 24, 1964], No. 14418/65. Headings F2C and F2D. In a hydrostatic transmission a control handle 84 is connected by a linkage 84a, 96 to the follow-up lever 94 of a selector servovalve 82 controlling the supply of pressure liquid to piston-cylinder units 30, 38 and 32, 40, connected to the swash-plate 26 of a variable displacement pump 14, the valve including a spring 108 operating to centre the valve element 88 when the handle 84 is in the neutral position to eliminate backlash in the linkage. The link 84a includes a spring arm 118, 120, Fig. 3 (not shown), which is normally inoperative but rendered effective to prevent valve damage if the handle 84 is displaced sufficiently for the valve element 88 to contact end stops. The cylinders 30, 32 house springs 34, 36 for holding swash-plate 26 in its zero-delivery position, the cylinders being capable of screw adjustment to vary the spring loading. In the arrangement shown, the motor 16 is of fixed displacement, a low-pressure relief valve 68 and high-pressure relief valves 60, 62 being provided between the flow and return lines 18, 20. A replenishing pump 46 and cooler 82 are also fitted.
Patent GB-1302323-A (GB)
IPC: B62D6/02
Filed: 1971-05-12
Abstract: 1302323 Power steering NISSAN MOTOR CO Ltd 12 May 1971 [6 Aug 1970] 14424/71 Heading B7H A vehicle has an hydraulic power steering system in which the vehicle's road speed is used to modulate the reaction pressure in the control valve to increase "feel" at higher speeds. The control valve 11 is incorporated in the steering linkwork and comprises a spool 28 having grooves 48, 49 which works in a valve body 15 to which is connected the steering pump P at bore 43 and the power steering ram at bores 50, 51. The "feel" at the steering-wheel is due to the pressure in the reaction chamber 12 acting on a spring seat 34 which is slidable inside spool 28 and which acts on the steering-wheel via rod 40. This pressure is increased when valve 60, operated by solenoid 62, the current through which is supplied by the vehicle speed sensor 14, is urged to the left to close orifice 56. In a modification the valve 60 may be fluid-operated by a vehicle speed responsive governor valve.
Patent GB-276454-A (GB)
Title: An apparatus for trimming or paring the edges of louis heels
IPC: A43D87/00
Filed: 1926-06-08
Abstract: 276,454. Pochin, F. H., Pochin, H. S., and Millman, C. H. June 8, 1926. Trimming. -An apparatus for paring or trimming the marginal portions of the apron projecting at the side edges of Louis heels comprises a rotary cutter and two adjustable gauges or guides, one to engage against the heel breast and the other against the side of the heel, whereby' the trimming may be effected flush with or at a desired distance from the side edges of the heel. A rotary dished cutter 10 rotates within a handle 6 which is grasped by the operator, and is driven by a flexible connection. A collar 16 on the handle has a lug 18 bored to receive a screwed stem 22 supporting a carrier 20, the carrier being adjustable longitudinally of the cutter axis by lock nuts 24, 26, 28. A boss 32 on the carrier is bored to receive a side guide 14, adjustable at right angles to the cutter axis by a thumb nut 36 and a clamping nut 40. A similar boss carries, similarly adjustable, a breast guide 12, but this boss is formed on an arm pivoted to the carrier 20 at 46, and urged inwardly by a spring against an adjustable stop screw. The end of the guide 14 is formed as a plough to raise any bent over portion of the edge of the apron. Adjustment of this guide determines whether a flush or " Vienna " edge is to be produced. The operation is facilitated by the provision of two tools, one for each side of the heel, the positions of the guides being relatively reversed.
Patent GB-656158-A (GB)
Title: Improvements in and relating to control systems for electric motors
IPC: B66C9/16
Filed: 1948-05-28
Abstract: 656,158. Control of several A.C. motors. IGRANIC ELECTRIC CO., Ltd., and WEST R. A. May 28, 1948, No. 14487. [Class 38(iii)] A system of electric motors which drive a travelling structure which runs on two rails and has independent motors for the driving wheels of the two rails comprises four polyphase induction motors, two for driving the wheels of one rail and two for driving the wheels of the other rail, wherein two of the motors appertaining to different rails are connected together and supplied so that their rotors move in synchronism, and the other two motors are connected in cascade with the first two motors. A travelling structure which runs on two rails has four independent polyphase induction motors for the driving wheels of the structure, motors 8 and 9 appertaining to one rail and motors 10 and 11 to the other. The stator windings 12 and 13 of the leading motors 8 and 10 are connected in parallel to three-phase supplylines through reversing contactors 17 and 18, the rotor winding 19 of the motor 8 is connected to the rotor winding 20 of the motor 9, and the rotor windings 24 and.25 of the motors 10 and 11 are similarly interconnected. The rotor circuits of the motors 8 and 10 are joined by synchronizing connections 29, 30, 31 which pass current from one motor to another if the motors fall out of synchronism in such manner as to restore the motor speeds to equality. The stator windings 32, 33 of the motors 9, 11, are interconnected, a regulable resistance 34 being provided for controlling the four motors. The cascade connection, and the mechanical coupling through the rails, of the motors 8, 9, and 10, 11, provides a synchronous speed of half that of a single independent motor, which is a suitable condition for obtaining a heavy synchronizing torque between the two sets of motors. A switch 35 disconnects the motors 10 and 11 from the mains when it is desired to correct mis-alignment. This switch has contacts in the stator circuit of the motor 10 and in the leads 29, 30. During coasting the stator windings 12 and 13 remain connected to the mains, maximum resistance being placed in circuit with stator windings 32, 33 which are virtually on open circuit. A heavy synchonizing current flows through conductors 29, 30 and 31. In a modification. Fig. 4 (not shown), the stator windings 32, 33 have separate control resistors.
Patent GB-499860-A (GB)
Title: Improvements in television transmitting devices
IPC: H01J29/43
Filed: 1937-05-25
Abstract: 499,860. Cathode-ray tubes ; electron multipliers. RADIOAKT. - GES. D. S. LOEWE. May 25, 1937, No. 14502. Convention date, June 16, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 1, 1937.] [Class 39 (i)] In television transmitting apparatus of the type in which the object is focused on a transparent photo-sensitive surface, thus forming an electron image which is focused on to a mosaic screen, the other side of which is photosensitive and is scanned by a light ray, the photo-sensitive surface is formed as a net, the meshes of which are not larger than an image point and which is placed at a distance of less than the width of a mesh from the mosaic screen, so that electron-optical focusing -devices are dispensed with. Fig. 1 shows an arrangement in which the mosaic screen 2 consists of beads or rods of silver in the meshes of an insulated net. The net 1 on which the object 5 is focused is sensitized with silver and caesium in the known way and is connected to the net forming the foundation of the screen 2 and both are directly earthed. Electrons emitted from the screen 2 when scanned by a beam of light from the source 7 are picked up by an anode 9 and produce image signals. Alternatively, the screen 2 and net 1 may be earthed through a resistance and connected through a condenser to an amplifier to produce image signals. Fig. 4 shows an arrangement in which electrons emitted from the mosaic 2 are concentrated by cylindrical electrodes 16, 17 and an annular electrode 19 and either fall directly on a secondarily emissive surface 20 or are deflected on to the first electrode 26 of a multiplier of the hop-along type by a magnetic field, which also directs the course of the electrons through the multiplier.
Patent GB-633440-A (GB)
Title: Improvements in and relating to light sensitive signalling devices
IPC: H05B39/08
Filed: 1947-06-02
Abstract: 633,440. Visible signalling-apparatus. LONDEX, Ltd., and BESSON, A. P. June 2, 1947, No. 14519. [Class 118 (ii)] [Also in Group XL (b)] A flashing signal controlled by a photo-cell so that it operates only when the ambient illumination reaches a predetermined low level has its timing mechanism stepped by an electromagnetic relay which also derives a high voltage from a low voltage supply for application to the photo-cell circuit. As shown, a timing camshaft 1 is rotated by a self-interrupting relay 5 which rocks a cradle 2 carrying a pawl which rotates the shaft through a ratchet-wheel 3. The speed of the shaft is maintained constant by a geared eddy current disc 7 and a spring 6 loaded by the rocking of the cradle and attached to the periphery of an eccentric cam to maintain its torque constant. When the relay interrupts it closes a circuit containing a condenser 15 and rectifier 36, this condenser being charged to a high voltage by the surge produced in the relay coil. This high voltage is applied to a circuit comprising a further condenser 17 and a photo-cell 18 which conducts if the day is sufficiently bright. In this case, on closure of contacts 21 by a cam on the timing shaft, a relay 19 will open the circuit to the flashing lamp 20. If the day is dull, relay 19 will fail to operate and the lamp will flash its characteristic signal by a cam 27. The contacts of relay 19 are normally held open by a lever 23 and released by a cam 25 just prior to the closure of contacts 21 by cam 22.
Patent GB-950736-A (GB)
Title: Improvements in or relating to thermionic valves
Inventor: HAEGELE FREDERICK GUSTAV ADOLF
IPC: H01J19/38
Filed: 1960-04-26
Abstract: 950,736. Thermionic valves. STANDARD TELEPHONES & CABLES Ltd. April 26, 1960, No. 14526/60. Heading H1D. In a thermionic valve comprising a frame control grid 15, Fig. 5, surrounding a cathode 14 and surrounded by a further electrode 16, the control grid side rods 1, Fig. 2, are spaced at one end by a ribbon-shaped strut 3 of thickness not greater than that of the cathode, and lying wholly between the planes of the grid wire 4. The electrodes are spaced at this end by an insulator 18, provided with apertures 10, 11, Fig. 4, for the cathode and the control grid side rods, these apertures being joined by slots 12 which afford passage for the control grid strut 3 during assembly of the valve. The strut 3 may be morticed into the side-rods 1, or may be butt-joined thereto. Wire rings 5 locate the control grid relative to insulator 18. As shown, screen grid 16 is also a frame grid with side rods spaced at one end by straps 26 recessed at 27 to reduce leakage currents, and at the other end by straps 8 bent away to provide clearance for control grid straps 2. Insulator 18 and a further mica bridge at the other end are supported by posts secured to a pair of mica discs which engage the envelope, Fig. 6 (not shown). Specific dimensions are given. In particular, the spacing between the control and screen grids is 0.007 inch and accordingly the screen grid voltage is only 50 v. with respect to the cathode. The invention may also be applied to triode valves.
Patent GB-1300219-A (GB)
Title: Electromagnetic transducer
Inventor: CLIFT CHARLES EDWARD
IPC: G01R33/02
Filed: 1970-03-25
Abstract: 1300219 Measuring angular displacement and rate electrically SPERRY RAND CORP 25 March 1970 [14 April 1969] 14539/70 Heading G1N Apparatus for deterining magnitude and rate of angular displacement comprises a core 13, 15 including a permanent magnet 14 a winding 34 on the core and energized from an A.C. supply to produce an alternating flux field co-extensive with the unidirectional field from the magnet, and a pivotable armature 38 including a pick-up coil (28) Fig. 3 (not shown) which is movable along an arcuate air-gap 23 whereby a signal indicative of its displacement are induced in it, which signal has an alternating component of phase sense and amplitude proportional to the direction and magnitude of the displacement and a direct current component of polarity and amplitude corresponding to the direction and magnitude of rate of change of displacement. The displacement is produced either by a mechanical connection to the armature of a movable member or, as described to measure pitch or roll of an aircraft, by displacement of the armature by a further winding (27) engergized by a D.C. signal from a flight director computer 12. The armature windings are disposed sideby-side on a frame 24 pivoted at 21 with an indicator pointer 10. The windings are energized from a driver amplifier 42 with feedback signals from displacement and rate detector circuits 44, 45 respectively. Signals in excess of a predetermined threshold actuate an alarm flag 55, which is also responsive to an open circuit between the driver amplifier and the computer or to failure of the computer.