baber/WOPTO huggingface dataset:
Patent GB-1460441-A (GB)
Title: Differential locking mechanism
IPC: F16H48/24
Filed: 1973-01-10
Abstract: 1460441 Differential gear R KNOWLES & SONS Ltd 7 March 1974 [10 Jan 1973] 1387/73 Heading F2D A motor-vehicle bevel differential gear is normally locked by yielding plungers 140, 142, Fig. 2, between one side wheel 128 and a driving crown wheel 110, 112, the plungers yielding at predetermined torque loads to permit differential action, the crown wheel 110, 112 being mounted for limited rotational movement on a carrier 114, such movement, under torque load, applying a force to the plungers 140, 142 which increases their resistance to yielding. The yielding plungers slide in radial pairs 140, 142 in the carrier 114 and are urged apart by Belleville springs 146, the inner plungers 142 each having an inclined tooth 152 engaging a camming recess in the side gear 128, whilst the outer plungers 140 each having an incline 148 engaging an indined recess in the crown wheel 110, 112, whereby rotational movement of the crown wheel relative to the carrier 114, under torque load, increases the compression of the plunger springs 146 and hence the torque required to cause the inner teeth 152 to ride out of the side wheel recesses, thereby permitting differential action until they drop into the next recess. Rotation of the crown wheel 110, 112 relative to the carrier 114 under load is resisted by packs of Belleville springs 169, Fig. 4, in a channel 160 in a side member 116, bolted, with an opposite side member 118, to the carrier 114, the springs 169 bearing on heads 166 of plungers 164 slidable tangentially in abutments 162 spanning the channel 160, the plungers 164 bearing on keys 154 secured to the crown wheel 110, 112 and having limited circumferential movement (170, Fig. 3, not shown), with respect to the carrier 114.
Patent GB-571366-A (GB)
Title: Improvements relating to readily cleanable filters
IPC: B01D27/00
Filed: 1944-02-17
Abstract: 571,366. Filters. VOKES. C. G. Feb. 1, 1944, No. 1400/43. [Class 46], In a filter having a screen of circular section adapted to be cleaned by scrapers bearing resiliently against the dirty side of the screen and operated from outside the casing, the scrapers are carried by a cage or like mounting freely centred relatively to the screen. In the form shown, particularly for insertion in a bypass to give relatively fine filtration of a small proportion of the lubricating oil of an I.C. engine, a cylinder 22 provided with inclined scrapers 24 is freely centred about a screen formed of felt, &c., soft porous discs 1, held between end caps 5, 10 around a perforated cylinder 2. The scrapers may be formed by slotting and bending the cylinder or may be resiliently mounted thereon or the resilience of the discs may suffice. The stem 19 of the operating handle 21 is mounted in a removable cleaning plug 18 and has a forked end 20 detachably engaging a cross-bar 23 on the cylinder 22. The end cap 5 is secured to a spigot 4 held by a bayonet joint 14, 15 in the outlet 7 and the end cap 10 is secured by a bolt 11 connected by a spider 9 to the spigot.
Patent GB-1267293-A (GB)
Title: Improvements relating to apparatus for the electroslag melting of metal
Inventor: BRITTAIN CHARLES PETER
IPC: C22B9/18
Filed: 1970-01-12
Abstract: 1,267,293. Casting processes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 Jan., 1971 [12 Jan., 1970], No. 1412/70. Heading B3F. [Also in Divisions G3 and H5] Apparatus for the electroslag remelting of metal comprises a plurality of moulds 25 supported by a common supporting means 27, a common supporting means 22 for a plurality of electrodes 21, the electrode supporting means 22 being restrained against downward movement during the electroslag remelting, and means for moving the mould supporting means 27 towards the electrode supporting means. The bottom of each continuous casting mould is initially closed by a base-plate 26 supported on a platform 32. The mould supporting means 27 and the platform 32 extend from carriages 28 and 33 respectively which are movable up and down a mast 24 in response to signals from a control unit 31 which combines signals from sensing devices 40 arranged to monitor the electrical parameters of the electrode circuits. The difference in speed between carriages 28 and 33 is controlled by a probe 41 monitoring the level of the slag 37 in one of the moulds. In an embodiment the moulds are arranged at the ends of six arms extending radially from a mast (55). In another embodiment the moulds are not of the continuous casting type but rest on a base-plate supported by the mould supporting means.
Patent GB-1318498-A (GB)
Title: Cleaning windshields
IPC: B60S1/48
Filed: 1972-01-12
Abstract: 1318498 Windscreen cleaning systems L CODELUPPI 12 Jan 1972 [15 Jan 1971] 1417/72 Heading A4F A windscreen cleaning system comprises windscreen wipers, means for delivering washing liquid on to the windscreen, and an electric heater, and thermostat for controlling the temperature of the liquid, the electric heater being operable independently of the liquid delivery means. Washing liquid is supplied from a reservoir 1 by a hand or foot operated pump 2 to discharge nozzles 9, carried by or independent of the windscreen wipers, via a container 5 in which the liquid is heated by a thermostatically controlled electric heater 6. In another embodiment the container 5 is omitted and the heater 6 is provided in the reservoir 1. Alternatively the liquid may be heated by passage through a metal tube through which an electric current is passed, or through a spiral pipe surrounded by an electric resistor in series with the pipe, or electric heating resistances may be placed around the liquid discharge nozzles.
Patent GB-693057-A (GB)
Title: Improvements in apparatus for driving and synchronising parallel-connected alternators
IPC: H02P5/46
Filed: 1951-01-19
Abstract: 693,057. Fluid-pressure servomotor-control systems; maintaining speeds &c. HOBSON, Ltd., H. M., and SMITH. C. P. Oct. 24, 1951 [Jan. 19, 1951], No. 1536/51. Classes 69(ii) and 135 Apparatus for driving at constant speed and synchronizing a plurality of parallel-connected alternators, comprises one or more hydraulic motors for driving each alternator, each motor being supplied by one or more remotely located variable delivery pumps, one alternator and its associated motor or motors and pump or pumps being a master unit, and each other alternator and its associated motor or motors and pump or pumps being a slave unit. The apparatus is shown controlling a pair of alternators 10, 110, Fig. 1, in an aircraft. The master unit comprises the alternator 10, driven by a hydraulic motor 12 supplied with liquid from two pumps 13 drawing from a reservoir 14. The delivery pressure of the pumps is controlled by a signal pressure in a line 23 derived from the pump delivery line 22, through a governor 15 comprising a valve 17, Fig. 2, positioned by flyweights 16 on the motor shaft. Thus, an increase in speed increases the signal pressure to cause a decrease in the pump delivery pressure and vice versa. The slave unit comprises the alternator 110 driven by a hydraulic motor 112 supplied by pumps 113 drawing from a reservoir 114. The signal pressure in line 123 is derived from a device 26 comprising a piston valve 27, Fig. 3, centred in a housing by springs 29. The delivery pressure of pumps 13 acts through line 28 on the piston valve and the delivery pressure of pumps 113 acts thereon through line 122. The valve controls the application of the delivery pressure of pumps 113 to line 125 and thence line 123, and thus a variation in the delivery pressure of pumps 13 causes a corresponding change in the signal pressure in line 123 and hence in the delivery pressure of pumps 113 whereby the alternator of the slave unit is synchronized with that of the master unit. A governor 115 comprising a valve 117 is interposed between lines 125, 123 and movable by flyweights 116 on the shaft of motor 112. This valve controls the signal pressure in line 123 should the master unit cease to operate, in which case valve 27 will move to the left to close line 125. The valve 117 is set to control the slave unit at a slightly higher speed than the device 26. The pumps may be of the variable-stroke swashplate type or of the kind described in Specification 659,010.
Patent GB-555977-A (GB)
Title: Improvements in and relating to the packing of cooked meats
IPC: B65D81/32
Filed: 1942-02-06
Abstract: 555,977. Food preparations ; preserving food. VICKERS, H. Feb. 6, 1942, No. 1563. [Class 49] [Also in Group XVII] A container is charged with one or more separate portions of meat, poultry, game or fish and a vegetable or mixture of vegetables, separated by a flat disc or discs of edible material, such as dough, the contents being then processed and the container sealed. A further disc or discs may be provided for confining a portion of relish, such as red currant jelly or vegetables, fruit or pulps or essences thereof, which may contain spices, condiments or flavourings, and is preferably consolidated by gelatine, fat or farinaceous material. The discs may be provided with a serrated edge or perforations to facilitate passage of air and steam during processing. Discs of dough may contain seasoning and may be partially cocked before insertion. The meat &c. may be pressed, chopped, sliced or minced or in the form of a paste including bread and egg, tomato &c. may be added thereto. The meat and vegetable portions may be capable of being sliced. Specifications 384,278, 417,756 and 442,645 are referred to.
Patent GB-655761-A (GB)
Title: Improved means for admitting air to the exhaust manifolds of internal combustion engines
IPC: F01N1/14
Filed: 1948-01-19
Abstract: 655,761. Cooling exhaust. DE LUXE PRODUCTS CORPORATION. Jan. 19, 1948, No. 1585. Convention date, Oct 21, 1944. [Class 7(ii)] Means for admitting air to cool the exhaust and to steady its flow, comprise a tube 16, 17 and 18, ten times as long as its diameter, which is at one end connected to the exhaust manifold 10, and at the other end has a light non-return valve 21 to admit air. The tube 16, 17, 18 tapers, preferably in steps as shown, and a chamber 50 connected by an orifice 51 smoothes out pulsations. A twisted sheet-metal plate 60 cools the exhaust and heats the air. In a modification, the tube 16 opens into the closed end of a surrounding tube leading to the non-return valve, which is horizontal and surrounded by a casing containing baffles past which the air flows.
Patent GB-1036131-A (GB)
Title: Improvements in or relating to time division multiplex communication systems
Inventor: HARDING DOUGLAS JOHN
IPC: H04J3/00
Filed: 1962-01-16
Abstract: 1,036,131. Automatic exchange systems; radio frequency systems. H.M. POSTMASTER GENERAL. Jan. 14, 1963 [Jan. 16, 1962], No. 1611/62. Headings H4K and H4L. In a time division multiplex system, each time slot is subdivided, one portion carrying analogue signals such as speech, and the other portion carrying digital type information. The additional information may be supervisory information, e.g. for causing dial tone, ringing tone or N.U. tone to be sent and may relate to the same connection as the speech it accompanies. Preferably the supervisory information should precede the speech. The supervisory information may be further time divided to provide more signals at slower speed. Thus, as shown in Fig. 3, speech on lead 1 modulates time slot P1, and portion K2 is admitted at 3 to the highway 5. Different types of information on leads 20 ... 22 are gated in at P1 to gates 8, 25, 26 partially enabled during portion K1 of the time slot. However, these gates can only be opened when leads 27, 28, 29 are enabled and this occurs only once every three cycles for a given gate, the gates being opened in successive cycles, Fig. 4.
Patent GB-157931-A (GB)
Title: Automatic pressure equalizing valve for both cylinder-ends in locomotive steam-engines
IPC: F01B31/22
Filed: 1921-01-10
Abstract: 157,931. M³ller, F. Dec. 12, 1919, [Convention date]. Cylinder ends, putting into communication; valve-chests.-In valves of the kind described in Specification 6145/14, the balance valve body g is connected to a counter-balance piston m, the outer surface of which is subject to atmospheric pressure through apertures o' or to the pressure in the passage e<1> by a hole in the hollow stem n. The body g is provided with an upper seat a, and a lower part with seats which engage seats b, c, l on the casing.
Patent GB-1056857-A (GB)
Title: Securing mortice locks in the metal rails of glass doors
Inventor: HARVEY PETER
IPC: E05B65/00
Filed: 1963-01-15
Abstract: 1,056,857. Fitting locks to doors.. TULSON Ltd. Jan. 15, 1964 No. 1798/63. Heading E2A. A mortice lock 19, Fig. 1 is fitted into a metal channel section rail 11 on a glass door by forming longitudinal grooves 17, 18, Fig. 2, in the inner faces of the flanges 12, 13 of the rail, providing the lock with laterally projecting longitudinal ribs or flanges adapted to engage in the grooves 17, 18, sliding the lock lengthwise into the rail with the ribs or flanges engaged in the grooves, and securing the lock in a desired position in the rail. In the embodiment shown the grooves 17, 18 are wedgeshaped in section and members 20, 21 secured to the normal fixing lugs 22, 23, of the lock 19 have correspondingly shaped flanges. The lock is fitted to the rail by engaging the flanges in the grooves and sliding the lock along the rail until the member 21 abuts a stop 30. A plate 27 with a locating portion 26 is screwed in position in a cut-away portion 28 at the end of the rail to retain the lock.
Patent GB-273241-A (GB)
Title: Improvement in rock drills
IPC: E21B21/01
Filed: 1927-01-21
Abstract: 273,241. Ingersoll-Rand Co., (Assignees of Slater, F. M.). June 26, 1926, [Convention date]. Percussive hand tools.- The exhaust from a pneumatically - operated hammering tool escapes' through ports o, p into a chamber formed by a sleeve y surrounding part of the cylinder and clamped by tongues 2 on its upper end gripped by the handle member F. Openings 6 in the sleeve to lead the exhaust to atmosphere are set out of register with the openings o, p. The front head D is held by a coiled spring s. The rocking- plate distributing valve d is housed between a ring Z and a plate b.
Patent GB-675555-A (GB)
Title: Improvements in couplings for trailer vehicles
IPC: B60D1/00
Filed: 1949-01-24
Abstract: 675,555. Vehicle draw gear; friction dampers. CLARKE, C. V. Jan. 24, 1950 [Jan. 24, 1949], No. 1937/49. Classes 103(v) and 108(iii). [Also in Group XXXIV] A tractor-trailer vehicle coupling comprises a bracket secured to one vehicle and supporting an angularly adjustable crank, on the crank-pin of which is mounted to swing a coupling element which is coupled to the brake operating mechanism of the trailer, a device being provided to lock the crank in different angular positions while leaving the coupling component free to swing in all positions to control the brakes (see Group XXXIV). As shown a bracket 2 mounted on a trailer drawbar 1 carries, on a spindle 3, a crank comprising plates 4 one of which is extended to form a sector 11 having formed therein a series of holes 12. The crank may be locked in different angular positions by a pin, one limb 13' of which passes through the, bracket 2 and one of the holes 12, the other limb passing into a spring box 14, Fig. 2. Pivotally mounted on the crank pin 6 are two plates 8 which support a towing bar 9 having a coupling eye 10. A stop 24 limits forward movement of the members 8 under draught and a link 17 serves to apply the trailer brakes on over-running. Pivotal movements of the towing bar 9 about the pin 6 are damped by a friction pad 25 which is pressed against one of the plates 8 by a spring 26 housed in a spring box 27 carried by the bracket 2, an adjusting bolt 28 being provided. A handle 15 on the spindle 3 facilitates adjustment of the coupling bar. Specification 619,876 is referred to.
Patent GB-432010-A (GB)
Title: An improved device for indicating a leak in an oil-filled electric cable system or the like
IPC: G01M3/28
Filed: 1935-01-21
Abstract: 432,010. Indicating leakages in oilfilled cables &c. OKONITE-CALLENDER CABLE CO., Inc., 730, 21st Avenue, Paterson, New Jersey, U.S.A. Jan. 21, 1935, No. 2019. Convention date, Jan. 20, 1934. [Class 99 (ii)] A device for indicating a leak in an oil-filled cable &c. comprises a pipe 41, which is provided with a valve- 5<1> and is located across a stop point of the cable with its ends in communication with the oil &c. therein, and a pair of pipes 6<1>, each having a flap valve 12 and being connected to the pipe 41 across the valve 51 and to one another in parallel. The valves 12 are housed in sight gauges 11 and are normally retained on their seats by springs 13, the arrangement being such that when the valve 51 is closed a leak in the cable causes one of the valves 12 to open. Fig. 1 shows the outer valve open, this indicating a flow from left to right and consequently a leak to the right of the device.
Patent GB-100074-A (GB)
Title: Improvements in or relating to Telegraph Repeating Instruments.
Inventor: DIXON THOMAS BULLITT
IPC: H01H53/015
Filed: 1914-12-01
Abstract: 100,074. Dixon, T. B. Dec. 5, 1913, [Convention datel. Moving-coil relays. -In a moving-coil relay, an arm moved by the coil carries insulated parts adapted to close one or other of two local circuits according to the direction of movement of the coil, the contacts being carried by pivoted contact-arms. The local circuit may be closed through rolling contact segments. In the relay shown in Figs. 1 and 4, the coil 20<a> carries an arm 40 having insulated pieces 41, 41a adapted to engage contact-pieces 42, 42<a> carried by freely-swinging arms 43, 43<a> carried by shafts 47 mounted in jewelled bearings. The contact 42 rests between a contact 45 and a stop 46 carried by the forked end of an arm 44 on a shaft 47a, which is mounted to rotate with slight friction, this being secured by friction springs 50. A spring 55 normally presses the contact 42 against the stop 46 on the arm 44, movement of this arm being prevented by a fixed stop 52. When the arm 40 moves in one direction, the contact 42 is at once moved against the contact 45, thus closing the local circuit. As the arm 40 continues to move, the arm 43 carries the arm 44 with it, the local circuit being kept closed; but as soon as the coil 20a begins to swing back, the contact 42 is moved away from the contact 45, owing to the friction of the shaft 47<a>, thus opening the local circuit. In the modified contact mechanism shown in Fig. 3, the arm 40 of the moving coil is connected by fibres 73 to pivoted levers 72 connected by fibres 76, 77 to a forked arm 44 mounted as shown in Fig. 1. Arms 43 are provided with contact segments 70, which normally engage insulating-parts of similar segments 71 on the levers 72. When the arm 40 moves, one or other of the segments 70 makes a rolling contact with the conducting-part of the segment 71. A recorder 61, Fig. 4, may be arranged in the circuit of both repeating-relays 58, 58<a> so as to record the messages transmitted.
Patent GB-668847-A (GB)
Title: Improvements in or relating to the manufacture of metallic articles by power metallurgy methods
IPC: C22C29/06
Filed: 1949-01-26
Abstract: The n-phase of high-speed steels consists of the double carbide of iron and tungsten of compositions ranging from approximately Fe4W2C (37 per cent iron; 61 per cent tungsten; 2 per cent carbon) to approximately Fe3W3C (23 per cent iron; 75.5 per cent tungsten; 1.5 per cent carbon).  The invention comprises the manufacture of metal articles by powder metallurgy methods in which iron-tungsten carbide and/or its analogue iron-molybdenum carbide is or are employed as a raw material. The compositions of iron-molybdenum carbide range from Fe4Mo2C (52.2 per cent iron; 45 per cent molybdenum; 2.8 per cent carbon) to Fe3Mo3C (39.8 per cent iron; 57.8 per cent molybdenum; 2.4 per cent carbon).  The double carbides may be used in combination with the carbides of tungsten, titanium, vanadium, niobium, tantalum as well as molybdenum carbide Mo2C and chromium carbides Cr3C2, Cr7C3 and Cr23C6 the chromium in the latter being replaceable by iron and tungsten or molybdenum to form a compound Fe21W2C6 or Fe21Mo2C6.
Patent GB-584830-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/04
Filed: 1945-01-26
Abstract: 584,830. Vacuum cleaners. HOOVER, Ltd. Jan. 26, 1945, No. 2098. Convention date, March 25,1944. [Class 8 (i)] Part of the nozzle of a suction cleaner including a lip is adjustable to bring the brush carried thereby into and out of contact with the carpet to adapt the cleaner to operate by suction only or by combined brushing and suction. Fig. 2 shows a nozzle formed with a bottom plate 58 having a rear wall 60 attachable to the rear lip in either of two positions in which it is held by a nut 67. In the upper position of the plate, the brush bristles project through a hole in the plate, while in the lower position the brush is held above the plate out of contact with the carpet which is cleaned by suction only. The brush carries a coaxial friction disc engaging the wheel flange internally. In a modification, Fig. 8, a nozzle lip bracket 90 carries at its ends arms carrying the brush and wheels, and is slidable by an external lever to adjust the position of the wheels and brush and to vary the nozzle opening. The brush shaft is toothed to engage internal wheel teeth. The wheels are carried in end pockets from which the air is cut off by movable plates. The nozzle is connected to a suction cleaner by a flexible hose.
Patent GB-227404-A (GB)
Title: Device for actuating and holding in position movable members
IPC: B60T11/04
Filed: 1924-01-26
Abstract: 227,404. Stenbock, S. Jan. 10, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Lever linkages; levers and rods, locking.-A non-reactive device interposed between an actuating lever 4 and a slidable member such as a brake- or clutch-operating rod 1, comprises a plate or member 10 having rocking and sliding movement in the same plane about a fixed pivot 14 and connected to the slidable member 1 through a groove or slot 11 extending more or less transversely thereto. The rod 1 is slidable in bearings 2, 3 on a plate 6 which carries the pivots 5 and 14. A pin 13 provided upon the rod 1 engages the slot 11 which may be of arcuate form centred about a point in the axis of the rod. The intermediate member 10 may be connected to the lever 4 directly or through a link &c., or, as shown, a pin 9 on the member 10 engages a slot 7 in the lever and an arcuate guide slot 8 in the fixed plate 6. The alternative limiting position of the device is shown in broken lines.
Patent GB-693591-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B73/00
Filed: 1951-01-29
Abstract: 693,591. Sewing-machines. STEHR,G. Jan. 29, 1951 [Jan. 27, 1950], No. 2184/51. Class 112. Frames.-The base 1 is of downwardly-open substantially rectangular box 'shape, and the hollow arm 4, which has no enlarged or projecting head and which tapers towards its free end, extends from the base in a semi-oval or like curve to a point above the throat-plate 5. Stitch-forming devices.-The needle 7 is carried by an arcuate lever 3 lying within the arm 4 and pivoted to the base 1 at 2, being connected by a pitman 10 to an eccentric on the main shaft 9, which is preferably driven by an electric motor in the base of the machine. The take-up comprises a lever 11 connected to the needle lever 3.