baber/WOPTO huggingface dataset:
Patent GB-284937-A (GB)
Title: Gramophone movement comprising an electric motor and a spring motor
IPC: G11B15/40
Filed: 1927-07-18
Abstract: 284,937. Rebikoff, W. July 18, 1927. Driving; starting and stopp:n<y.-Mechanism whereby a gramophone is :adapted to be driven either by an electromotor or by a spring motor alternatively. the latter being stopped by a pawl when the circuit of the electromotor is closed, is characterized by the provision of ratchet devices mounted upon one or more intermediate spindles of the spring motor. In the construction shown, a spindle 4, parallel to the turntable spindle 1 carries a duplex free-wheel clutch mechanism comprising a ratchet-toothed hub 6 fixed to the spindle 4, and drums 7, 8 enclosing the hub together with rollers 17 above and below a dividing washer 16. The drum 8 carries a wheel gearing with a pinion 11 mounted on a spindle 12, which is driven by an electromotor 15. The drum 7 is mounted on a sleeve 5 rotatable on the spindle 4, and carrying a pinion 9 which gears with teeth 10 on the drum of a spring motor. By this arrangement, the spindle 4 may be driven by either motor, acting through the respective ratchet-clutch, the drive being transmitted irom the spindle 4 to the turntable spindle through a wheel and pinion 3, 2. Each motor is provided with its own control-lever, and these levers are so associated that movement of one lever to start the motor which it controls latches the lever, and so prevents inadvertent operation of both motors together. Various ways of providing for this intere'sgagement of the levers are described. For example, in the arrangement shown in Figs. 10 and 11, two levers 39, 40 are adapted to turn around the bearing-bush 41 of the turntable spindle. The lever 39 carries an insulating finger 39<a> adapted to break the circuit of the electromotor by separating spring contactfingers 42; the lever 40 is integral with a pawl 40a which can stop the spring motor by engagement. with a ratchet-wheel 20. Each lever, when in the position of rest, bears upon an arched por. tion of a hook-ended blade spring 43, so that the hooks are then depressed. When either lever is moved, to start its own motor, the spring 43 which it had previously held down rises so that its hook prevents movement of the other lever. Other arrangements are described for enabling each motor to be started by depression of a key, means being provided whereby when one key is depressed the other becomes locked in the raised position. Turntables.-In order to prevent damage to the driving-mechanism if the turntable is rotated backwards by hand, a frictional connection between the turntable and its spindle is provided. This may be done, as shown! in Fig. 4, by securing to the spindle 1 a socket 23 within which is frictionally received a stem 24 on which the turntable is mounted. The socket is split, and carries a nut 25 for regulating the friction. In a modified arrangement, the usual turntable spindle enters a flanged socket which is frictionally secured to the turntable by a ring and fabric washers engaging the flange.
Patent GB-1154286-A (GB)
Title: Analog to Pulse Width Converter
IPC: H03K7/08
Filed: 1968-04-23
Abstract: 1,154,286. Analogue-to-digital converters. HAZELTINE CORP. 23 April, 1968 [2 May, 1967], No. 19048/68. Heading G4H. [Also in Divisions H3 and H4] In a pulse width modulator, means responsive to an input analogue signal develops a first pulse having a first portion of predetermined fixed width and a second portion of width proportional to the sampled instantaneous amplitude of the input signal, and means responsive to the first pulse develops an output pulse whose width is substantially equal to the second portion of the first pulse. This arrangement enables the apparatus to respond accurately to low amplitude input signals which normally would be prevented by the threshold value of the device. The output pulses may be used to gate a pulse train to provide a digital output in which the number of pulses is proportional to the amplitude of the input sample. Circuit details.-The modulator includes a monostable circuit 11 comprising transistors 12, 22, and a monostable circuit 17 comprising transistors 30, 31. Transistor 12 is operated in an inverted mode so that it develops a relatively low collector to emitter saturation voltage and the collector is connected to a source of reference potential 15 which determines the width of the first portion of the first pulse. The analogue input signal is supplied to the emitter of transistor 12. Normally transistor 22 is saturated and transistor 12 cut off and the voltage developed across capacitor 13 is equal to the amplitude of the signal sample minus the base-emitter saturation voltage of transistor 22. Reception of a start pulse cuts off transistor 22 and transistor 12 is saturated to develop the first pulse A, Fig. 3, at the collector of transistor 27. The voltage at the base of transistor 22 rises instantaneously to a value equal to the reference voltage from 15 minus the amplitude of the input sample minus the baseemitter voltage of transistor 22 plus the collector emitter voltage of transistor 12. As capacitor 13 discharges linearly via a constant current device 14 (including temperature compensation transistors 23, 24, 25 connected as diodes) the voltage at the base of transistor 22 decreases until the monostable 11 resets to its stable condition and pulse A is terminated. The start pulse is also supplied via capacitor 29 to set the monostable 17 to generate a pulse B of width equal to the first portion of the pulse A. The trailing edge of pulse B sets a bi-stable 18 which is reset by the trailing edge of pulse A to produce an output pulse C of duration corresponding to the amplitude of the input sample. A source of digital pulses is supplied to an AND gate 19 and this gate is opened for the duration of pulse C to supply a digital output D.
Patent GB-837601-A (GB)
Title: Improvements in heat transfer or like bodies
IPC: F24F6/04
Filed: 1956-06-20
Abstract: 837,601. Cooling liquids by direct contact. MUNTERS, C. G. June 20, 1956 [June 23, 1955], No. 19104/56. Class 64(1) [Also in 'Group XII] A transfer body 12 for effecting a change of the condition of one medium by another, one of the media being a gas and the other a liquid, includes partitions 16, 18 disposed in spaced relation to one another and some or all of which are bent to form tubular channels which may be bridged by the liquid under the influence of capillary force, means being provided to cause the liquid to leave the discharge ends of the channels open. A plane sheet 16 and a sinusoidally corrugated sheet 18 having a wave length slightly in excess of twice the height of the waves are connected along the peaks of the waves by a binding agent insoluble in water and have their water-absorbing capacity reduced by impregnation with phenol resin. Water is supplied to the body by a sprayer 38 rotated by the reaction from the escaping water while air is sucked by a fan 52 through inlets 54 to pass through the body 12 and a water separator 55. The spacing between the plane sheets 16 is preferably about 3 to 4 millimeters while the length of the tubular channels is between 150 and 500 millimeters. To ensure that the channels do not become blocked by liquid, the lower ends of the sheets 16, 18 are cut in a saw-toothed manner with each line 58 extending over a number, such as four or six channels, at an angle of 15 to 25 degrees to the vertical. The body 12 is enclosed in a cylindrical metal casing 24 and is reinforced by spokes 30. The sprayer 38 and a conduit 42 may communicate with a condenser in an air conditioning system. water losses due to vaporization being replaced from a conduit 44 provided with a float-controlled valve. In an alternative construction, the transfer body is of square form and fitted with stationary sprayers provided with deflectors. In further modifications, the sheets 16, 18 are made from asbestos, glass wool, finely meshed wire netting or metal web, all of the sheets may be pleated to form a honeycomb structure and the body 12 may be made from parallel tubular members, e.g. straws, or be rotatable with the liquid medium flowing in a radially outward direction. The body 12 may be used for absorption purposes, e.g. a salt solution of calcium chloride or lithium bromide may be used to separate water vapour from air. Specifications 776,071 and 837,602 are referred to.
Patent GB-422062-A (GB)
Title: Improvements in or relating to means for heating and cooling buildings
IPC: F24D3/16
Filed: 1933-07-05
Abstract: 422,062. Radiators for heating and cooling buildings. CLEGG, F., 22, Radnor Avenue, Harrow, Middlesex. July 5, 1933, No. 19114. [Class 64 (ii)] In a heating or cooling system for buildings wherein the heating or cooling medium circulates through a series of pipes A arranged, for example, between the ceiling of a room and the floor above it, an iron plate B rests on the crowns of the pipes and has secured thereto vertical partitions C interposed between the laps of the pipes. The partitions, which may be hollow and preferably of trapezoidal shape, support a layer of expanded metal or iron netting D to the underside of which is secured a layer of plaster or millboard E. The latter is additionally supported by means of bars F and the whole system is suspended from the joists by bolts H.
Patent GB-472957-A (GB)
Title: Improvements in and relating to the production of multiple-layer metal wires
IPC: B21C37/04
Filed: 1936-10-17
Abstract: 472,957. Making composite wires; welding by pressure. KAMMERER AKT.- GES., F. Oct. 17, 1936, No. 19146/37. Divided out of and addition to 472,942, under which a Specification was laid open to inspection under Sect. 91 of the Acts, April 23, 1937. [Classes 83 (ii) and 83 (iv)] The invention described in the parent Specification is applied to the manufacture of composite wires, which are formed by passing assembled members k, b, heated to welding temperature, through radially acting percussion jaws h<1>, h2, either the jaws or the work being rotated.
Patent GB-153640-A (GB)
Title: Improvements in means for preventing theft of motor road vehicles
IPC: B60R25/00
Filed: 1919-08-02
Abstract: 153,640. Jones, W. R Aug. 2, 1919. Levers, locking.-In order to prevent the release of a brake by unauthorized persons, the brake lever A carries a locking rod B having a stop C which can be held in its raised position by the bolt D<1> of a lock D, either directly as shown, or through an intermediate member. The lock may be placed just above the brake quadrant E, and the bolt D<1> and stop C may be enclosed by a guard plate. The bolt of the lock may be projected by a spring and retracted by the key, being normally held out of action by a hand-controlled detent.
Patent GB-680863-A (GB)
Title: Improvements in or relating to apparatus for grinding the edges of lenses
IPC: B24B9/14
Filed: 1950-08-01
Abstract: 680,863. Grinding the edges of lenses. RAPHAEL, O. P. July 31, 1951 [Aug. 1, 1950], No. 19243/50. Class 60. Apparatus for grinding the edges of lenses comprises a pair of spaced-apart sensing elements each of which extends a short distance inwardly from a side of the grinding disc and in the path of traverse of the lens across the disc, means for traversing the lens over substantially the width of the grinding disc and means controlled by the sensing elements to reverse the direction of traverse when a sensing.element is engaged by the lens during traverse thereof. A lens 8 is supported, with its edge 7 in engagement with the peripheral face 6 of a grinding disc 5, by means 9 traversed, through connection 11, by mechanism 10 electrically controlled by means 12 in turn controlled by micro-switches 13 so disposed that their actuators 14 lie close to and extend a short distance across'the face 6 of the grinding disc from the sides thereof, the actuators being engaged by the lens 8 at the opposite ends of its traverse.
Patent GB-1570454-A (GB)
Title: Method of and vessel for adding treatment agent to molten metal
IPC: C21C7/064
Filed: 1977-05-09
Abstract: The mixing of a treatment agent with molten metal is carried out by inserting a vessel which contains the treatment agent (1) and consists of a material which does not harm the molten metal into the molten metal. The treatment agent and the molten metal are stirred after the material of the vessel has been brought into contact with the molten metal. The vessel has a paper tube (2) which consists of kraft paper wound in layers. The vessel furthermore has covers (3, 4), of which the upper cover (3) can be provided with an apparatus for immersing the vessel in the melt. In such a process, treatment agents can be introduced deep into the melt without the substances already floating on the surface of the melt, such as, for example, sulphur, being reintroduced into the melt. <IMAGE>
Patent GB-293575-A (GB)
Title: Improvements in hinged-hasp fastenings for attache, suit and other cases, boxes and the like
IPC: E05C19/08
Filed: 1927-07-21
Abstract: 293,575. Peel, A. L. July 21, 1927. Hasp fastenings, of the kind comprising a hasp member d coacting with a pull-up projection g, have the hasp additionally connected to its base c by a resilient link e hinged to both the hasp and the base. The hasp d is hinged at d<2> to the base c and has an abutment d<3> and fingergrip d<4>. The loop e engages a slot c<2> in the base, and the slot may have a central restriction so as to hold the hasp in open position. The hasp may also carry a key-lock. The link may be around or over the hasp. The hasp d may carry a projection entering a hole in the plate f.
Patent GB-477171-A (GB)
Title: Improvements relating to sliding doors for vehicles
IPC: B60J5/06
Filed: 1936-07-13
Abstract: 477,171. Sliding - door holders. AUSTER, Ltd., CARTY, S. A., and SMALL, W. W. July 13, 1936, No. 19344. [Class 44] A device for preventing closing movement of a sliding door for vehicles &c. unless released by operation of the handle, but allowing free movement in the opening direction comprises a fixed rod 9 and a sleeve 8 of woven or coiled wire surrounding the rod, the sleeve contracting radially to grip the rod when extended axially. The door 1 is supported at the top by brackets 2 with balls 3 running on a rail 4, and by spring-pressed rollers, not shown, at its lower edge. One end of sleeve 8 is anchored in a bracket 12 carried by the door and its other end is secured to a sleeve 13 slidable on the rod. Normally, the sleeve is extended to grip the rod by a compression spring 14 between the members 12, 13. Force applied to the door in closing direction tends to lengthen the sleeve and increase the grip, preventing movement of the door. Force applied in the opening direction causes axial compression of the sleeve, releasing the grip and allowing free movement. The door may be closed by operation of the handle 7, a transmission wire 21 operating a lever 15 pivoted on the door to move sleeve 13 so as to compress spring 14 and sleeve 8 axially. According to the Provisional Specification a bell-crank releasing lever is used, operated from the handle by a rod. A modification is described in which the sleeve 8 is mounted within a slotted tubular rod and grips the inner surface of the tube when expanded radially by axial compression.
Patent GB-148289-A (GB)
Title: Improvements in automobile vehicles
IPC: B60K1/00
Filed: 1920-07-07
Abstract: 148,289. Krieger, L. July 22, 1919, [Convention date]. Batteries, mounting or supporting. - Motorvehicles having a longitudinal hollow metal 'beam, such as is described in Specification 147,560, [Class 79 (iv), Motor vehicles, Frames &c. of], when electrically driven, have the batteries n<1> supported from the transverse body supporting cross pieces o mounted on the beam a or placed inside the beam.
Patent GB-1418332-A (GB)
Title: Production of animal feedstuffs
IPC: G01N33/02
Filed: 1973-04-24
Abstract: 1418332 Estimating supplements in feedstuffs MICRO TRACERS INC 24 April 1973 [11 Aug 1972] 19394/73 Heading A5B [Also in Division G1] The amount of feed supplement in a homogeneous animal feed is determined by premixing a finely divided ferromagnetic tracer material with the supplement in a known ratio, mixing the pre-mix with an animal feed and quantitatively estimating the tracer by separating and removing it by magnetic means and meausuring the amount of material so removed. Preferably, the tracer particles are coated with a soluble dye which may be dissolved from the separated particles and used as the basis of the said estimation.
Patent GB-354014-A (GB)
Title: Sound reproducing apparatus relating to loud speakers and the like
IPC: H04R11/00
Filed: 1930-06-25
Abstract: 354,014. Loud-speakers. HAYNES, A. J. L., Port Haney, British Columbia, Canada. June 25, 1930, No. 19405. Convention date, June 25, 1929. [Class 40 (iv).] Relates to an electromagnetic device for soundreproducing apparatus, such as loud-speakers, of the kind comprising a horseshoe permanent magnet having a similarly shaped electromagnet mounted on one pole, a polar extension mounted on the opposite pole adapted to form air gaps with the poles of the electromagnet and a pivotally mounted armature located in the air gaps and connected to a diaphragm and consists in the provision of means for adjusting the air gaps. In the construction shown, one pole 10 of a permanent horseshoe magnet carries a U-shaped electromagnet 11 having polar extremities 12 shaped as shown and co-operating with a polar extension 15 on the other magnet pole 14. A U-shaped armature 18 surrounding the polar extension 15, as shown in Fig. 3, is rigidly connected to the spindle 19 which is held in substantially frictionless bearings 20, a short arm 22 integral with the spindle 19 being connected by a rod 23 with the cone 21. The armature is normally held centrally by the permanent magnetic flux and the windings 16, 17 are wound so that when current flows therein the flux in one air gap is strengthened and weakened in the other, the armature moving to and fro into the stronger flux path. A tie-bolt 24 serves as a means for adjusting the air gaps.
Patent GB-1179185-A (GB)
Title: Handrail Belt for Escalator.
IPC: B66B23/24
Filed: 1967-04-27
Abstract: 1,179,185. Laminates. MITSUBISHI DENKI K.K. 27 April, 1967 [27 April, 1966], No. 19449/67. Heading B5N. [Also in Division B8] A handrail belt 16 for an escalator system includes a core member of a plurality of sail cloth webs 22 bonded together by a bonding agent 24, e.g. neoprene rubber, a rubber outer layer 28 and tensioning layers comprising an array of lengths of a textile cord 26 sandwiched between adjacent laminations on the portion 18 of the belt. The cords comprise organic fibrous material, e.g. glass yarn, of high tensile strength, and organic fibrous material, e.g. rayon yarn, of high flexibility, in a proportion of from 9: 1 to 5: 5 and in a paralleled and twisted yarn state. The tensioning layers are disposed only in the lower half of the portion 18 of the belt. After assembling the layers with the bonding agent the laminate is formed by moulding and vulcanizing under pressure at 160 C. The length of cords 26 may be disposed in the form of a layer or they may be bonded into a layer.
Patent GB-751908-A (GB)
Title: Centrifugal pumps
IPC: F04D15/00
Filed: 1954-07-02
Abstract: 751,908. Centrifugal pumps.ALLISCHALMERS MANUFACTURING CO. July 2, 1954 [Oct. 21, 1953], No. 19513/54. Class 110(1) In a centrifugal pump, the impeller and the wall of the impeller chamber present opposing surfaces between the suction and discharge, which surfaces are spaced apart to form an internal by-pass adapted to absorb a variable portion of the fluid discharged by the impeller. In the centrifugal pump shown in Fig. 1, liquid can be the passed from the discharge side 21 of the impeller 11 to the suction side 20 by way of a by-pass 25. Vanes 26 help to reverse the flow into the by-pass 25. The by-pass 25 is controlled by a cylindrical valve 28 having an annular lip 31 which, in the closed position shown, abuts the surfaces 23 of the impeller vanes. The valve 28 is movable axially by means of pinions 33 engaging racks 34 and operated through gearing 39, 40 by a handwheel 41. In a modification, the impeller is of the shrouded type and the lip 31 is omitted, the end surface of the valve 28 being arranged to abut the surface of the inner end of the shroud when the valve is closed. In a further embodiment, the impeller is of the double-inlet type with a valve 28 for each inlet. The operating gearing of the two valves is interconnected by a chain drive for operation by a single handwheel. Fig. 6 shows an embodiment in which the by-pass 125 is controlled by an axial movement of the impeller 111. For this purpose, the impeller shaft 112 is journalled in bearings 153 carried by a member 150 which can be moved axially on a bedplate 155 by means of:a screw 162 and handheel 161. Sealing rings 130 are provided between the member 150 and the pump casing 110, and the shaft 112 is connected to the driving means 152 by splines 151.
Patent GB-1058723-A (GB)
Title: Improved panelboard
IPC: H02B1/21
Filed: 1964-05-11
Abstract: 1,058,723. Switchboards. I-T-E. CIRCUIT BREAKER CO. May 11, 1964 [June 5, 1963 (2);. April 8, 1964], No.19560/64. Heading H2B. A three-phase switchboard comprises three U-shapod bus-bars (36, 37, 38) (Fig. 13, not shown) assembled upon a metal panel (31) by means of a moulded insulating support (35) (Figs. 6, not shown), each of the bus-bars having offsets, such as (56A, 56B, 56C), the surface of all of which lie in a common plane. The offsets (59A, 59B, 59C) are connected by straps (39) to respective line terminals (40) while the remaining offsets (54, 55, 56, 57) are arranged to have circuit-breakers attached to them, the breakers being supported by a rail (76). The two outer bus-bars (36, 38) are of flat strip construction and their width can be varied to suit the current rating; the centre bar (37) is of square section and its rating can be increased by clamping to it a similar bar (65) (without the offsets). In a modification (Fig. 14, not shown) the terminal block (100) is made separate from the rest of the insulating support (35) and in further modifications (Figs. 15-28, not shown) it is replaced by an adapter (115) itself containing a set of three concentric bus-bars (136, 137, 138) having offsets (140, 141) for connection by straps to the offsets (159) of the main bus-bars and offsets (139) forming connections to a threephase circuit-breaker such as that described in Specification 1,058,722 which is mounted upon the adapter (Figs. 18, 19, not shown).
Patent GB-765883-A (GB)
Title: Rack-and-pinion steering mechanism for a motor vehicle
IPC: B62D3/12
Filed: 1954-07-03
Abstract: 765,883. Steering vehicles. JAGUAR CARS, Ltd., and HEYNES, W. M. June 23, 1955 [July 3, 1954], No. 19563/54. Class 79(5). In a motor vehicle having a rack and pinion steering mechanism 10, 14 the rack support 13 is mounted on the chassis frame 24 through a flat plate 19 secured to the upper surface only of a rubber block 20, the block being fast with another flat plate 21 connected to the chassis frame. As shown the rack 14 is supported by bearings 15 in the support 13, and the pinion 10 is connected by a universal joint 12 to the steering column 11. The support 13 carries fore and aft pairs of bosses 18 receiving bolts 27 passing through the plate 19. The plate 21 is connected by bolts 22 to a supporting bracket 23 on the vehicle frame 24, the plates 19, 21 having their edges shaped to facilitate access to the bolts 27, 22.