baber/WOPTO huggingface dataset:
Patent GB-421093-A (GB)
Title: Improvements in and relating to internal combustion engines of the liquid fuel injection type
IPC: F02B21/00
Filed: 1934-02-13
Abstract: 421,093. Direct-injection oil engines. DAIMLER-BENZ AKT.-GES., Untertiirkheim, Stuttgart, Germany. Feb. 13, 1934, No. 4737. Convention date, Feb. 13, 1933. [Class 7 (iii)] The stream of fuel issuing from the outlet of a precombustion chamber flows through the combustion chamber towards the opening or openings of an air accumulator. The precombustion chamber and the air accumulator may be arranged in the cylinder head symmetrically with respect to the cylinder axis, and at an inclination thereto, and the jet of fuel issuing from the precombustion chamber is directed by reflection from the end of the piston, towards the air accumulator. In the construction shown in Fig. 2, the precombustion chamber a is arranged in the head at one end of the combustion chamber c, which is formed by a channel in the piston e and flares towards the air accumulator b. In another form, the precombustion chamber is arranged centrally in the cylinder head and has four outlets opening into sectors cut in the piston, the sectors having air accumulators arranged at all or some of their ends. In the construction shown in Fig. 6, a central precombustion chamber a is provided, and three air accumulators b<1>, b<2>, b<3>, and the combustion chamber is formed by three 8-shaped depressions in the piston head, into the circular halves of which the precombustion chamber and the air accumulator discharge tangentially. In further modifications, (1) circular combustion chambers located on one side of the line of discharge of the air accumulators are used instead of 8-shaped combustion chambers, (2) the air accumulator is arranged in the piston, or (3) several precombustion chambers are provided which co-operate jointly with one or several air accumulators.
Patent GB-994777-A (GB)
Title: Improvements in or relating to electric pulse switching systems
Inventor: THOMAS EDWARD REGINALD
IPC: H04Q11/04
Filed: 1961-02-08
Abstract: 994,777. Pulse switching systems. GENERAL ELECTRIC CO. Ltd. Feb. 8, 1962 [Feb. 8, 1961], No. 4761/61. Heading H4K. In a time division switching system comprising an input 1 having signals in various time positions which may require to be fed to an output line 2 in different time positions, the signals from the input 1 are fed to a delay line 9 from which they may be gated in later time positions by gates 4 . . . 8 to an intermediate line 3, whence they are gated by appropriately timed pulses applied to gate 16 on to the output lead 2. There may be a plurality of output leads 2, 2A, 2B, and an additional intermediate line 25 may be provided having pulses delayed (by delay line 26) relative to those on line 3. Moreover the intermediate lines may be connected through further gates such as 38 to lines 31 which are connected by further delay lines 32 to the output lines 2. Groups of input lines each with its associated delay lines and gates may be connected to associated intermediate lines having access to the same output lines, Fig. 1 (not shown). The outputs from a single delay line may be fed to a plurality of groups of gates, each group being associated with an intermediate line, Fig. 4 (not shown). The signals may be of the pulse code, or pulse width modulation types.
Patent GB-424728-A (GB)
Title: Improvements in and relating to direct current voltage changers incorporating electron discharge devices
IPC: H02M3/33
Filed: 1934-02-14
Abstract: 424,728. Converting. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin) Feb. 14, 1934, No. 4911. Convention date, Feb. 15, 1933. [Class 38 (ii)] In a D.C. voltage changer comprising a pair of valves 3, 4 operating in association with the primary 5 of a transformer and a commutating condenser 16 as an inverter, and a pair of valves 7, 8 operating as rectifiers on the secondary side of the transformer, interlinked chokes 10, 14 being provided in the input and output circuits respectively as described in Specifications 219,025 and 219,026, [both in Class 38 (ii)], additional chokes 101, 14<1> the inductance of which varies with load are provided in the input and output circuits to decrease the amplitude of voltage peaks introduced into the output voltage by operation of the interlinked chokes. Where the apparatus is to operate on a constant load, the necessary self inductance for that load may be obtained by introducing leakage reactance into the interlinked chokes.
Patent GB-987552-A (GB)
Title: Improvements relating to hydraulic tappets
Inventor: DADD MORRIS VERNON
IPC: F01L1/245
Filed: 1964-02-05
Abstract: 987,552. Lubricating systems; cams. JOHNSON PRODUCTS Inc. Feb. 5, 1964, No. 4911/64. Headings F2A and F2K. [Also in Division F1] In an hydraulic tappet 10 (Fig. 1) lubricating oil for a rocker arm (not shown) is periodically discharged into a hollow push-rod 22 from a reservoir 16 through a passage 26 registering with an aperture 28 in the base of the push-rod, the reservoir being defined by a hollow plunger 14 slidably lodged in the body 12 of the tappet and the flow of oil therefrom being restricted by a perforated disc 30 partially closing the inlet end of said passage. Disc 30 is provided with a plurality of apertures 36 in register with an annular groove 40 in a seat 18 for the pushrod which is carried by plunger 14. Oil enters passage 26 from groove 40 through two narrow passages 44 (Fig. 3) defined by disc 30 and a nose-portion 42 of seat 18 having a partcylindrical configuration. Alternatively, noseportion 42 has two flat surfaces 32, 36 (Fig. 7), surface 32 defining with disc 30 a narrow passage through which oil enters passage 26 from groove 40.
Patent GB-446992-A (GB)
Title: Improvements in the manufacture and production of organic sulphur compounds
IPC: C07C317/04
Filed: 1935-02-15
Abstract: Organic sulphur compounds are manufactured by reacting vinyl sulphones of the general formula <FORM:0446992/IV/1> where R is an aliphatic radicle containing at least 7 carbon atoms and x is a whole number, with bisulphites of light metals. Suitable vinyl sulphones are heptyl, dodecyl, octodecyl and octodecenyl vinyl sulphones, also vinyl sulphones which contain the vinyl sulphone group more than once, e.g. 1 : 12-divinylsulphone-octodecane.  The sulphones may also have branched chains, and may contain substituents, e.g. halogens, or hydroxy, alkoxy, hydroxyalkyl, nitro, amino, sulphydryl, carboxylic or sulphonic groups.  The reaction is preferably carried out in the presence of solvents or diluents, e.g. water or aqueous alcohol, if desired under pressure.  The products may be employed as assistants for the textile and related industries.  In examples: (1) dodecyl vinyl sulphone is heated with an aqueous solution of sodium bisulphite, yielding a product of the probable formula <FORM:0446992/IV/2> there may similarly be used other vinyl alkyl sulphones, e.g. octodecyl or octodecenyl vinyl sulphone or the mixtures of vinyl alkyl sulphones obtainable from alcohols of high molecular weight, e.g. those obtainable by catalytic hydrogenation of the fatty acids from animal or vegetable fats or oils; (2) octodecyl vinyl sulphone is heated with sodium bisulphite solution, yielding a product of the formula C18H37SO2CH2CH2SO3Na; the octodecyl vinyl sulphone may be replaced by octodecenyl vinyl sulphone, and the sodium bisulphite by potassium or calcium salts; (3) 1 : 12-octodecanedivinyldisulphone (obtained by converting ricinoleic acid by way of 1 : 12-octodecanediol, 1 : 12 - octodecanedibromide and 1 : 12 - octodecanedithiol to 1 : 12 - octodecanedivinyldisulphide and oxidizing this substance) is refluxed with aqueous sodium bisulphite to produce 1 : 12 - octodecanedisulphonediethane-disulphonic acid sodium salt. Specifications 442,524, 442,525 and 444,501 are referred to.
Patent GB-798303-A (GB)
Title: Improvements in beadings, mouldings or the like
IPC: B60J10/00
Filed: 1955-02-18
Abstract: 798,303. Edging for carpets. BRIGHT, T. J. R. May 18, 1956 [Feb. 18, 1955], No. 4948/55. Class 142(4) [Also in Group X] A beading or moulding for application to the edge of a vehicle or household carpet, comprises a channel-shaped continuous clip 1 capable of universal bending movement and having along one edge an inturned lip 2 and carrying an ornamental fabric covering 3 the longitudinal edges of which are turned over the edges of the clip and secured thereto. The clip 1, which is provided with staggered slots 7 extending inwardly from opposite edges, has inwardly directed tangs 8 which pierce the covering 3 and are then turned over to secure the fabric in position. In a modification the covering 3 is stitched to the clip 1, the pressed-out tangs 8 being replaced by sewing holes. In use the lip 2 engages projections on a flange or other supporting member or engages clips which frictionally grip the flange or carpet edge. Both longitudinal edges of the clip may have an inturned lip. Specifications 649,137, 705,634, 779,866 and 779,868 [all in Group X] are referred to.
Patent GB-1248402-A (GB)
Title: Substituted 1,4-(cyanomethylene)-substituted benzenes and their use in the preparation of substituted cyclohexadienes
IPC: C07C255/32
Filed: 1968-07-31
Abstract: 1,248,402. 1,4 - Bis - (dicyanomethyl) benzenes. E. I. DU PONT DE NEMOURS & CO. 31 July, 1968 [30 Aug., 1967], No. 4999/68. Heading C4P. [Also in Division C2] In Examples IV and V, the bistetrapropyl ammonium salt of 2,6-dicyano-1,4-bis-(dicyanomethyl) benzene and 2,5-dicyano-3,6-difluoro- 1,4-bis-(dicyanomethyl) benzene are stated to dye nylon, silk and wool red.
Patent GB-588598-A (GB)
Title: Improvements in electronic switches
IPC: H03K17/54
Filed: 1945-03-01
Abstract: 588,598. Valve switching circuits. JAMES, R. H., and MITCHELL, J. H. March 1, 1945, No. 5175. [Class 40 (v)] [Also in Group XXXVI] An electronic switch comprises a pair of valves with a common anode load and with alternating voltages applied in antiphase to their control grids to render the valves conducting alternately, so that input signals applied separately to the valves appear successively in the load. Fig. 1 shows application to a cathode ray indicator presenting signals from channel ABCD separately on successive time base sweeps. Multivibrator 18, which comprises two pentodes with cross couplings between control and screen grids, feeds square waves in antiphase to complementary suppressor grids of valve pairs 14 and 15, 16 and 17 so that signals A, B and C, D appear alternately in output leads 35, 36 respectively. A similar multi-vibrator 13 controlling the next switching. stage 11, 12 operates at half frequency so that valve 11 translates signals A and B in succession and then blocks these signals while valve 12 translates signals C and D in succession. Direct output connections are used to avoid interaction between channels, and the cathodes of valves 11 and 12 are joined to the H.T. positive line through dropping resistors 47, 48 to compensate for the resulting high grid voltage. The multi-vibrators are interlocked by connecting an adjustable capacitor 49 from the anode of one valve in multi-vibrator 18 to a symmetrical capacitive connection between the control grids of multi-vibrator 13.
Patent GB-434008-A (GB)
Title: Improved arrangement for the supply of liquid to centrifugal separators
IPC: B04B11/02
Filed: 1935-02-18
Abstract: 434,008. Centrifugal separators. AKTIEBOLAGET SEPARATOR, 8, Fleming- gatan, Stockholm. Feb. 18, 1935, No. 5179. Convention date, Feb. 17, 1934. [Class 23] An arrangement for the closed supply of liquid to a centrifugal separator through the hollow spindle 1 of the bowl, consists of a chamber 3 which is entered by the small end 2 of the hollow spindle, around which packing 4, preferably elastic, is placed. A nozzle 5 crosses the chamber and enters the hollow spindle. Liquid is supplied to the nozzle under pressure so that it is discharged at a high velocity into the widening bore of the spindle where velocity is converted into pressure. The pressure on the packing is thus maintained at a low value. In a modification the nozzle terminates a short distance from the end 2 of the spindle and the liquid is thrown as a free jet into the bore of the spindle.
Patent GB-913678-A (GB)
Title: Process for producing dendritic crystals of semiconductor materials
IPC: C30B29/60
Filed: 1961-02-13
Abstract: <PICT:0913678/III/1> In pulling a dendritic crystal upwards from a supercooled melt using a seed crystal having three interior twin planes and orientated as shown in Fig. 2, the outer planes are spaced from the inner plane respective distances (A and B) of 0,5-5 and 0,5-30 microns.  Preferred distances are 1,7 and 5 microns. One or two dendritic crystals grow from a single seed depending on the conditions of pulling.  A pulled dendritic crystal may have a thickness of 1-25 mils and a width of 20-200 mils.  Further details of crystal materials and conditions of pulling are as in Specifications 889,058 and 913,674.
Patent GB-728262-A (GB)
Title: Improvements in or relating to firedamp proof electric time fuzes
IPC: F42B3/16
Filed: 1953-02-26
Abstract: 728,262. Blasting fuzes. DYNAMIT AKT.-GES, VORM. A. NOBEL & CO. Feb. 26. 1953 [March 1, 1952], No. 5427/53. Class 9(1). Electric blasting fuze contains a delay element 13 in a tube which is provided with a constriction such that the primary charge 24 may be ignited by the delay composition but the slag formed by the delay composition is prevented from ex. pulsion on detonation of the secondary charges 18, 19. The constriction may be formed in various ways such as giving the bore of the delay tube a conical shape or providing a narrow neck in the bore. The tube is formed from any suitable non-combustible material, excluding aluminium.
Patent GB-363899-A (GB)
Title: Thread cutting mechanism for sewing machines
IPC: D05B65/00
Filed: 1931-02-21
Abstract: 363,899. Sewing-machines. FAIRWEATHER, W., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Feb. 21, 1931, No. 5506. [Class 112.] A thread cutting device arranged below the throat plate of a flat button sewing-machine comprises a sliding thread-end nipper 31 which is moved from the closed position, Fig. 5, to the open position, Fig. 6, on the initial dovnstroke of the needle and back again on the upstroke to carry the thread-end x into a notch 44 of a ledger blade 45 and grip it against the throat plate for the rest of the sewing operation. On the machine being brought to rest, the overthrow action of a lever 8 of the stop motion device moves a slide bar 23 which operates a blade 46 to cut the thread-end x and a blade 57 to cut the work limb y. The blade 46 is pivoted to the throat plate at 50 and the blade 57 at 54. The nipper 31 is operated from cams 42, 421 by a two-armed lever 41, 41<1> and linkage 37, 35, 30.
Patent GB-114677-A (GB)
Title: Improvements in Speed Indicating Instruments.
Inventor: HIGGS CHARLES WILLIAM
IPC: G01P1/08
Filed: 1917-04-20
Abstract: 114,677. Higgs, C. W. April 20, 1917. Speed indicators; indicating suitable speeds for operating clutches.-In apparatus particularly adapted to show, for motor-vehicles, suitable speeds for changing gear, the speed indicator is driven from the engine shaft and is provided with graduations showing the revolutions of the engine shaft and the speed of the vehicle. The vehicle speeds are only approximately accurate, being calculated from the gear ratios and bearing a definite relation to the engine speeds. The ordinary indicating-hand is replaced by a disk 26 divided into a number of concentric rings, the graduations in the outermost ring representing the engine speeds. The remaining rings, from the exterior, correspond to the fourth, third, second, and first change gears, and the numerals thereon represent the speeds of the vehicle at the corresponding engine speeds with the particular change gears in mesh. Marks serving to differentiate the correct gear-changing speeds are placed round the particular numbers, or different colours may be employed. Between the indicating-disk 26 and the observer is a second disk 20. provided with arcuate slots 21 - - 25 through which the graduations are seen. In operation, if starting from rest, the first set of gears is placed in engagement, and when the numeral 10 appears at the opening 21 and an engine speed of 1800 is shown at the opening 25, the second gear is brought into operation. The engine speed falls to 900 and the numeral 10 appears in the space 22, after which the engine is accelerated until an engine speed of 1300 is shown and the numeral 15 appears in the space 22, this being the appropriate speed to change to the third gear. For the remaining gear the appropriate numbers are 25 and 1600 appearing in the spaces 23, 25. In reducing speed, the converse of these operations is adopted, commencing with the numerals 35 and 1500 showing at the openings 24 and 25 respectively.
Patent GB-621987-A (GB)
Title: Improved root crop harvesting machine
IPC: A01D19/14
Filed: 1947-02-28
Abstract: 621,987. Root crop harvester. ANDERSEN, A. K. K. Feb. 28, 1947, No. 5816. [Class 6(iii)] Relates to root crop harvesters. According to the invention, the roosts are lifted by share members 14 to an inclined rotary cleaning screen 8 partially surrounded by a fence 11 in which the screen 8 is to the rear of the driving wheels 4 with the fence extending along the one side from the front to the rear of the screen, said fence comprising interspaced rods attached by their ends only to the machine frame and in which detachable guide means are provided for attachment to the machine frame for guiding the cleaned belt from the screen rearwardly or laterally out of the machine. The guide means comprise a vertical rod 15a having rearwardly extending guide rods 15 held in a desired position in relation to the rear of the fence by an adjustment rod 16 attached to a horizontal arm 17. For lateral discharge of the roots a further fence, detachably fixed to the frame and extending from the rear of the fence 11, is provided, said fence discharging into a belt conveyer. The digging share has an adjustable edge piece for operating at different levels.
Patent GB-439221-A (GB)
Title: Improvements relating to card index trays
IPC: B42F17/18
Filed: 1935-02-23
Abstract: 439,221. Visible card-indexes. REMINGTON RAND, Inc., 465, Washington Street, Buffalo, New York, U.S.A. Feb. 23, 1935, No. 5892. Convention date, Feb. 24, 1934. [Class 146 (i)] A visible card-index tray is provided with a follower for holding the cardholders in the tray which is connected to a member pivoted to one or more other members in turn pivoted to the tray, so that the members can be moved to a past the dead-centre extended position to hold the follower in engagement with the card-holders, or moved from that position to retract the follower from the card-holders. The supporting strips 6, Fig. 4, of the hinged cardholders 7 engage beneath turned-over flanges 5 at the sides of the tray, and the holders rest within each other in known manner to give a uniform exposure of the margins of the holders. The foremost holder is engaged by a follower 25, which is pivotally connected to a plate 22 by V-shaped lugs 23, Fig. 5, on the plate engaging in pairs of slots 24, Fig. 7, which shows the tray from below with the bottom broken away. The follower 25 is spaced from the bottom of the tray by projections 29. The plate 22 is hinged at 19 to two members 17, which are themselves hinged at 15 to brackets 13 welded to a reinforcing angle member 10 at the front of the tray. A handle 30 is fastened to the underside of the plate 22 and, when the follower is in its rearward holder-engaging position, lies over a finger-hole 33 in the bottom of the tray. In this position the folded-over rear-edge 26 of the plate 22 rests on the brackets 13, and the hinge 19 lies below the plane through the lugs 23 and hinges 15, so that a toggle action maintains the follower in this position, but it can be released by upward pressure on the handle 30. The lugs 23 can be released from the slots 24 by partially raising the plate and then canting it sideways. Cut-off corners 27, 28 on the follower 20 and plate 22 permit this movement, and also sufficient twisting of the follower to release it from the flanges 5.
Patent GB-1261077-A (GB)
Title: Separating device for manifold set of sheets
IPC: G03G15/14
Filed: 1969-02-04
Abstract: 1,261,077. Delivering sheets. XEROX CORP. 4 Feb., 1969 [5 Feb., 1968], No. 5915/69. Heading B8R. Sheet-feeding apparatus for separating two weakly-bonded superposed sheets comprises two transport members driven to operate in different senses on opposite sides of the feed path and thus separate the sheets, one of the transport members being biased away from the feed path until the presence of sheets is sensed, whereupon the transport member is moved into contact with the sheets. Fig. 1 illustrates apparatus, not incorporating the invention, in which a manifold set 10 of sheets, comprising photoresponsive imaging material 16 between two sheets 12, 14, is fed between pairs of rollers 18, 24, 34 in a charging and imaging station. The set is then fed to further rollers 40, 42, 44 all normally rotating in the same direction at the respective nips; roller 44, however, may be reversed for a predetermined time to separate the lower sheet 14 from the top sheet 12. The sheet 12 is fed by roller 42 over guide plate 56 to rollers 59 and tray 57, while sheet 14 is guided between baffle plates 46, 48 into a second tray 54. Housings 50, 52 and 58 in plates 46, 48, 56 direct air on to the sheets, the air being circulated by a pump (not shown) through perforations 61, 62, 63 in the housings; heat sources 60 assist the drying of the sheets, and the air flow is sufficient to prevent imaged areas of the sheets from touching the guide plates or housings. In an improvement according to the invention, Fig. 2 (not shown), roller 44 rotates continuously in the reverse direction, i.e. against the feed direction of sheets from rollers 40, but is movable out of contact with the sheets by a cam mechanism connected to a photo-cell or limit switch (71) actuated by sheet 12 after separation. A further embodiment, Fig. 3 (not shown) uses coacting belts (72), (74) to replace rollers 42, 44, belt (74) being displaceable away from belt (72) by a timed solenoid, and being provided with small fingers (80) aiding engagement of the leading edge of a sheet.
Patent GB-213241-A (GB)
Title: Improvements relating to rotary tilling implements
IPC: B62D51/00
Filed: 1924-03-08
Abstract: 213,241. Mozer, R. March 20, 1923, [Convention date]. Rotary-tool cultivators; motors and wheels, arrangement of.-In a small implement mounted on a single driving wheel located between the rotary tool and the motor, the gearing for driving the wheel and tool is enclosed in a casing constituting the longitudinal beam or body of the implement and arranged at one side of the wheel. The motor a is mounted on one side of the gear casing d with its centre of gravity in or slightlv beyond the median plane of the wheel b. The tilling-tool also is arranged approximately symmetrically relative to the median plane of the wheel b. It is driven through reducing chain gearing and an intermediate shaft i, the sprocket-wheel on the tool shaft being nearer one end than the other. The wheel b is mounted on a spindle m fixed on the casing d and is driven from the shaft i by reducing toothed gearing k, l. Handles e are secured to the casing d. The ends of the tool shaft may be adapted to receive removable wheels for use in transporting the implement.