baber/WOPTO huggingface dataset:
Patent GB-1475723-A (GB)
Title: Photoconductive target of an image pickup tube and method for manufacturing the same
IPC: H01L31/08
Filed: 1974-05-20
Abstract: 1475723 Image pick-up tube; targets HITACHI Ltd and NIPPON HOSO KYOKAI 20 May 1974 [21 May 1973] 22345/74 Headings HID and H1K The photoconductive target of an image pickup tube passes an output current, measured across resistor 9, depending on illumination when the scanning electron beam 6 passes each point illuminated through glass window 1; saturation of current with increasing voltage of transparent electrode 2 above cathode 7 gives desirable operating characteristics of low dark current, good time response and after-image decay and good signal/noise ratio if junction 4-3 is a PN rectifier in which layer 4 is largely amorphous Se, the onset of saturation being required to occur below the dark current runaway voltage and without marked secondary emission: the addition of 0À1-1000 atomic ppm of halogen relative to the Se lowers the saturation voltage from over 40 to under 20, the runaway voltage simultaneously falling from over 100 to 30 (Fig. 4 not shown). Up to 50 atomic per cent based on the total composition, of additives, maybe included, such as 1-40% As to inhibit crystallization, and 1-30% Te or Sb, Bi, Cd, Pb for red sensitivity. Secondary emission may be inhibited by a thin layer 5 of SbS 3  or AsSe 3 ; a thin insulating layer 10 a few tens of nm thick of MgF 2  optionally interposed between Se layer 4 and n-type layer 3 raises the run-away voltage. The n-type layer 3 may be an oxide of Sn, In, Ti or elementary Ge or Si, in all of which cases its conductivity allows omission of transparent electrode 2, or CdS, ZnS, ZnSe or a mixture of any. In a first embodiment Se + 10 ppm I, 10% As, 10% Te, is vacuum deposited 3 micron thick with 100 nm overlayer of SbS 3  deposited under argon, all on one of the conducting n-type layers on glass. In a second embodiment Se + 10 ppm Cl added as SeCl 4 , 5% As, is vacuum co-deposited with Sb to 7%, 4 micron thick with 200 nm of AsSe 3  overlayer being deposited under A on 50 nm base 3 of CdS on a transparent electrode 2 of In oxide on glass 1. In a third embodiment Se + 20 ppm Br added as PbBr 2 , 13% As, is vacuum deposited 1 micron thick with SbS 3  overlayer deposited under A on a 15 micron Si wafer of 0À1 ohm.m. resistivity. F also is disclosed as a usable halogen. In each embodiment Se with 100 ppm halogen compound as sealed in evacuated quartz, melted at 600 C., diluted with Se, remelted similarly, mixed with As, Te &c., remelted similarly at 800 C., and vacuum deposited from Ta or Mo boat. The Se based layer may be subdivided into multiple sublayers of different composition.
Patent GB-650145-A (GB)
Title: Improvements in halogen containing derivatives of dicarboxylic acids
IPC: C07C69/34
Filed: 1948-08-25
Abstract: A 1 : 1 : 1 - trichloro - 2 : 3 - dicarbalkoxy - 4 - alkene is prepared by heating a 1 : 1 : 1-trichloro-3-bromo-2 : 3-dicarbalkoxypropane and an olefinic compound of formula <FORM:0650145/IV (b)/1> where A is hydrogen or a non-aromatic hydrocarbon radical and B is as A or a substituted non-aromatic hydrocarbon radical, in presence of a peroxidic polymerization catalyst at a temperature such that the catalyst is decomposed to give free radicals whereby a 1 : 1 : 1 - trichloro - 5 - bromo - 2 : 3 - dicarbalkoxy alkane is formed, and then treating this compound with an alkaline dehydrobrominating agent.  Olefinic compounds specified are isobutene, methallyl chloride, undecylenic acid esters, e.g. methyl, butene-1, 2-ethylbutene-1 and allyl chloride. Peroxidic catalysts given include acyl peroxides, e.g. diacetyl peroxide, alkyl hydroperoxides, hydrogen peroxide and per salts, e.g. persulphates. In an example, 1 : 1 : 1 - trichloro - 3 - bromo - 2 : 3 - dicarbmethoxypropane is heated with octene-1 and acetyl peroxide to give the bromine-containing adduct which is treated with alkali to give 1 : 1 : 1 - trichloro - 2 : 3 - dicarbmethoxyundecene-4; ozonolysis of the latter affords 1 : 1 : 1 - trichloro - 2 : 3 - carbmethoxybutyraldehyde. Specification 649,551 is referred to.
Patent GB-668074-A (GB)
Title: Improvements in or relating to warning systems for electric motors
Inventor: GLOVER DONALD WILLIAM
IPC: H02H7/093
Filed: 1948-08-25
Abstract: 668,074. Indicators for dynamo-electric machines. POSTMASTER GENERAL. June 9, 1949 [Aug. 25, 1948], No. 22408/48. Class 35. Relates to means for indicating failure of an impulse motor of the type which drives an interrupter connected in series with the motor stator winding. The interrupter contacts are so arranged that the stator coil is energized by an impulse each time the rotor of the motor is in a suitable position to ensure continuous rotation. As shown, the motor M is connected in series with battery B and interrupter M1 across which is connected capacitors C<SP>1</SP>, C<SP>2</SP>, rectifier D, and a moving coil relay E. When the motor is running, relay contacts E<SP>1</SP>, E<SP>2</SP> are open, but should the motor stop, with a consequent reduction of the rate of change of voltage across the interrupter tozero, the relay is de-energized and the contacts E<SP>1</SP>, E<SP>2</SP> close to energize an alarm circuit. In Fig. 2 (not shown), a transformer, instead of capacitors, couples' the motor circuit to the rectifier. In this arrangement the rate of change of current passing through the interrupter is detected. The motor may drive a cam operating contacts which intermittently energize a catalytic filament in a normally balanced bridge circuit forming part of a gasdetecting system. If gas is present during the periods in which the filament is energized, the bridge circuit is unbalanced. A movable contact K is also operated by the motor-driven arm to connect relay E through contact K<SP>1</SP> to the bridge circuit during the periods in which the filament is energized. If gas is present, contacts, not shown, of the relay operate alarm devices. When the contact K is returned to contact K<SP>2</SP> the relay E is energized to hold off contacts E<SP>1</SP>, E<SP>2</SP>, by the charge on capacitor C<SP>3</SP>. A resistor R may be adjusted to give the alarm circuit maximum sensitivity. Specifications 668,066, [Group III], and 668,067, [Group XXXVII], are referred to.
Patent GB-150177-A (GB)
Title: Improved gland for gas compressors, refrigerating machinery and the like
IPC: F16J15/40
Filed: 1919-09-12
Abstract: 150,177. Deam, O. Sept. 12, 1919. Cup-leather packing; connected to source of high pressure; stuffing-boxes, substitutes for.- Relates to stuffing-boxes for the cylinders of compressors and other machines in which very high pressures are employed and consists in using a pair of oppositely-disposed cup leathers pressed apart by a strong helical spring, the space between the leathers being filled with oil &c. at a pressure approximately that in the cylinder. As shown, the bottom of the box is shaped to receive the leather F within which is a metal ring G, loosely fitting so as not to press the leather against the rod. The outer leather L is pressed against the seating R on the end of the box by the gland D, which presses on a loose ring K. The leather contains a metal ring M, loosely fitting like the ring G. A strong spring N presses the rings G, M apart, the length of the spring being adjusted to give the required pressure when the gland is screwed hard down. Oil &c. under pressure is supplied through the opening O.
Patent GB-173257-A (GB)
Title: An improved wheel equipment standardising device
IPC: B60B23/08
Filed: 1920-07-28
Abstract: 173,257. Prescott, S. I., and Rummler, F. J. July 28, 1920. Detaching frnm, and attaching to, permanent hubs; disc wheels.- Wheels for vehicles are provided with means in combination whereby the body of the wheel may be detachably secured to the hub, the rim may be detachably secured to the wheel body, and the tyre may be detachably secured to the rim by a part of the latter which is removable. Fig. 4 illustrates one embodiment of the invention as applied to a disc wheel. The disc 8 is dished and provided with a flat central area 13 which is reinforced by inner and outer plates 14, 15 connected together by swaging the inner periphery of the plate 14 over the outer plate 15 as at 16. The means for detachably securing the wheel to the hub consists of bolts 4 and nuts 9. The bolts are permanently attached to the hub flange by nuts 6 and by upsetting their inner ends. The bolt holes through the wheel are larger than the bolts, and the nuts 9 have sleeve extensions 10 entering the annular spaces thus provided with the object of obtaining a locking action on the nuts during the driving of the wheel. The outer periphery of the disc is flanged. and provided with two seatings 17, 18 of different diameters for a rim 24 with two inwardly extending ribs 25, 26. The means for detachably securing the rim consist of screw bolts 20 which work obliquely through blocks 21 secured in the angle between the main part of the discs and its peripheral flange. The ends of the bolts are adapted to bear on the outer face of the rib 25 for holding the rim in position, and to be withdrawn sufficiently to allow the rim to be removed, a stop ring 23 being mounted on the bolts to prevent complete withdraws). With the obiect of damping vibration in the disc, an odd number of blocks 21 is preferably employed and in addition an odd number of bolts may be used at the hub. The valve stem is mounted in a sleeve 31, Fig. 5. riveted to the rim and adapted to communicate the drive thereto and enable removal of the rim to be effected without dismantling the valve. The tyre is detachably secured to the rim by a split flange 28 seated in a groove formed in the rib 26, The flange is stepped at 29 and held against accidental disengagement by the pressure of the tvre. The invention is also described as applied to a wheel with wood spokes and felloe.
Patent GB-461248-A (GB)
Title: Improvements in driving gear for reciprocating screens
IPC: B07B1/40
Filed: 1935-08-09
Abstract: 461,248. Sifting - apparatus; balancing reciprocating parts of machinery; flywheels. DRIGENKO, C. T., TWICKENHAM GRAVEL CO., Ltd., and CORT & SON, Ltd., R. Aug. 9, 1935, Nos. 22525/35 and 8431/36. [Class 117] [Also in Groups XXIV and XXVI] Reciprocating screens 12 are mounted on rigid pivoted links 19 and are driven by an eccentric shaft 14 and eccentric rods 18 connected to the stationary base structure 26 preferably through the resilient connection comprising pivoted links 34 and cushioning springs 40, 41 mounted on a pivoted guide 42. For the purpose of balancing the inertia forces, the shaft 14 also drives rotary or reciprocating masses so proportioned and disposed as to provide inertia forces equal and opposite to those of the screen. In the arrangement shown in Fig. 1, the shaft 14 drives a parallel or co-axial shaft 27, and both carry weights 321, 32<11>, which are disposed so that the centrifugal forces are additive in plane parallel to the plane of the links and cancel each other in a plane at right angles thereto. In an alternative arrangement, Fig. 3 (not shown), reciprocating masses which may be screens or conveyer troughs are mounted on links similar to 19 and are driven from the shaft 14 through cranks and connecting rods so as to have an equal and opposite momentum to that of the screen. The variations in speed of the shaft 14 are minimized by a spring energy storing device, a flywheel of usual construction or the flywheel shown in Fig. 6. This consists of a casing 52 keyed to shaft 14 and carrying a series of stub axles 55 on which are mounted unbalanced pulleys 62. The axles 55 carry gears 54 meshing with a stationary gear 57 secured to the screen frame.
Patent GB-400940-A (GB)
Title: Improvements in means or apparatus for supplying air or gas in a more or less finelydivided state to liquids
IPC: B01F3/04
Filed: 1932-02-22
Abstract: 400,940. Treating sewage &c. ACTIVATED SLUDGE, Ltd., 100, Victoria Street, London, JONES, E. R., Rigby Hall, Bromsgrove, DENTON, A. B., Rosslyn, Meriden Avenue, Wollaston, Stourbridge, both in Worcestershire, and COOMBS, J. A., 12, Princes Park Avenue, Golders Green, London. Feb. 22, 1932, No. 22534/33. Divided on 397,841. [Class 111.] In or for use in apparatus of the kind wherein air or gas is discharged into a liquid being purified in a treating tank through a readily removable porous element situated in a tray or channel at the bottom of the tank, the porous element is formed as a slab 2 fixed in a rigid surrounding frame 3 in such a manner that when the element is removed from the tray or channel 1 both faces of the slab are left clear for cleaning. The slab may be moulded and allowed to set in the frame, and projections may be provided on the interior surface of the frame to key the slab in position. The frame may be of cast metal and may have its sides inclined to the vertical so that opposite sides are set in V relationship. Rubber, asbestos, &c. joint-making or jointing material 4 is provided between the porous element and the tray. The trays are constructed to hold two or more separate slabs with a common air space 16 beneath them, the air being introduced as by an inlet in a bridge-piece on the top of the tray or by a pipe leading to the bottom of the tray. Specifications 340,644 [Group VI] and 397,841 are referred to.
Patent GB-144523-A (GB)
Title: Improvements in and connected with water-current motors
IPC: F03B9/00
Filed: 1919-09-13
Abstract: 144,523. Hall, S., and Browne, G. W. Sept. 13, 1910. Endless-chain motors.-A water-current motor comprises a series of buckets f attached to endless chains e running on toothed wheels d mounted at different levels. Rollers on the sides of the buckets run on continuous rails g to take the weight of the buckets. Fly-wheels may be provided.
Patent GB-955706-A (GB)
Title: Improved logical circuits employing tunnel diodes
IPC: H03K3/315
Filed: 1960-06-29
Abstract: 955,706. Tunnel-diode logical circuits; pulsing carrier frequencies. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 29, 1960 [Oct. 14, 1959], No. 22769/60. Headings H3T and H4L. A logical circuit comprising an oscillator circuit as described in the parent Specification and consisting of a tunnel diode and another semi - conductor device so connected in a loop that the application of a suitable direct voltage across the tunnel diode initiates oscillations in the oscillator circuit, includes also a plurality of pulse input sources and an output circuit coupled to said oscillator circuit and is so biased in relation to the amplitudes of the input pulses that a predetermined combination of input pulses is required to bring the oscillator circuit to an oscillatory condition whereby an output signal is generated. In the circuit illustrated the oscillator circuit is composed of tunnel diode 3 and a resistance element 4 composed of two regions of heavily-doped N-type material connected in a closed loop by means of a conducting bar 5 and an earthed base 2. Power is supplied to the circuit from a source 16, which is shown as a cell but which may be replaced by a source of rectangular pulse signals, connected to the oscillatory loop through a resistor 15 whose resistance is high as compared to that of the element 4. Pulse input circuits comprise loops 8, 10 inductively coupled to the oscillator circuit; diodes 7, 9 are so poled as to prevent feed-back from the oscillator circuit to the input circuit. A further loop C serves as an output circuit and a further circuit coupled through a transformer 14 may serve as an additional input circuit, preferably for clockpulses. The inputs and/or outputs may alternatively be coupled capacitively to the circuit, Fig. 2 (not shown). The circuit is normally so biased by the source 16 that the tunnel diode 3 is operating on a positive-resistance portion of its characteristic; a suitable combination of input pulses will, however, convert it to a negative-resistance condition when it will oscillate and deliver an oscillatory output signal, which may be rectified, Fig. 5 (not shown), to provide a direct-current pulse output. Fig. 3 (not shown) illustrates biasing conditions suitable for making the circuit operate as an OR- circuit, an AND-circuit, an inverter circuit or a circuit having an " inhibit " operation. A plurality of the circuits may be arranged in parallel and cascaded with other circuits in which case the circuits should be energized from suitably phased pulse sources or delay circuits interposed between the stages, Fig. 4 (not shown). Two circuits may be cascaded as shown in Fig. 7, the connection between them being effected by a length of coaxial cable 49 serving as a delay line. Resistors 15 are provided by conductive coatings on insulating blocks 15a.
Patent GB-500975-A (GB)
Title: Improvements in electric snap-action switches
IPC: H01H23/16
Filed: 1937-08-19
Abstract: 500,975. Snap - action switches. ARNOLD, C. L., DOWSETT, R. W., and M.K. ELECTRIC, Ltd. Aug. 19, 1937, No. 22807. [Class 38 (v)] Relates to a snapaction positive - drive switch of the type provided with a slidable member arranged first to permit an initial spring stressing movement of the actuating member without displacement of the contact-carrying member and then to transmit a positive drive of the latter during further spring stressing movement of the actuating member, the movement of the contact-carrying member in either direction being completed by snap-action, and consists in the operative connection between the slidable member and the contact carrying member being by means of a lug or projection on the sliding member working between two horns or projections on the contact-carrying member. In the Figures the dolly 6 and contact-carrying members 5 are pivoted on the axle 4 supported by the frame 3. The triangular slidable members 10 lie between the dolly and the contact-carrying members. As the dolly is moved over, the pegs 7a thereon contact with one of the projections 10b, Fig. 5, on the slidable members and displace these members so that the projections 10c in turn displace the lugs 5e, and positively actuate the contact carrying members 5. Alternatively the connection between members 6 and 10 may be by means of a projection on 6 engaging an aperture in or projections on 10.
Patent GB-392519-A (GB)
Title: Closing device for containers
IPC: B65D77/12
Filed: 1931-08-13
Abstract: 392,519. Paper &c. bags &c. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MœLLER & CO., 48,. Zwickauerstrasse, Dresden, Germany. Aug. 13, 1931, No. 22889. Convention date, Aug.. 25, 1930. Void [Published under Sect. 91 of the Acts]. [Class 94 (ii).] A bag &c. b is closed by a U- shaped strip a which is adhered to the mouth portions c of the bag &c. pressed together over the contents. If the strip a is of paper, an adhesive is used, but it may be made of soft metal and pressed together by tongs. The ends of the strip a preferably project beyond the width of the bag &c., and may be joined by adhesive.
Patent GB-654731-A (GB)
Title: Electronic counting circuit
IPC: H03K23/82
Filed: 1948-08-31
Abstract: 654,731. Valve relay circuits. HOLLAND, E. O., and PYE, Ltd. Aug. 31, 1948, No. 22894. [Class 40 (vi)] In a resistance coupled trigger-pair counting circuit the stability of the circuit is increased by connecting the input and output circuits to different electrodes of the multi-grid valves which comprise the trigger-pair. The Figure shows a trigger-pair circuit in which there are cross-couplings from the anode of each valve to the control grid of the other valve and a common cathode resistor R8. Negative-going triggering pulses are applied to the anode circuits at point I and the output pulse which is obtained from each two triggering pulses is taken from the screen-grid circuit of each valve. The common anode resistor R7 may be replaced by two separate resistors and separate triggering pulses applied to the anodes of the two valves. A number of such circuits may be connected in tandem to form a binary chain and pulses from a later stage may be fed back to a preceding stage to obtain a desired count which may not be a multiple of two. Hexode or heptode valves may be used, the triggering pulses being applied to one or more of the mixing grids of each valve and the output taken from the screen grid of one valve.
Patent GB-1253619-A (GB)
Title: Improvements in or relating to container-carrying vehicles
Inventor: PENMAN WILLIAM GUTHRIE SEMPLE
IPC: B60P1/64
Filed: 1969-05-06
Abstract: 1,253,619. Container traffic; lifting containers. A. C. PENMAN Ltd. 6 May, 1970 [6 May, 1969], No. 22924/69. Heading B8Q. A vehicle has jacks 2, 3 arranged on its centre line to lift a container 12 so that legs can be used to support it while the vehicle is withdrawn. With such an arrangement it is usual to operate one end at a time and then insert the legs so that that end is stable when the other end is operated. To increase stability the vehicle is provided with a cross-shaft 4 supported in bearings 5 and having a central arm 6, the bificated end 7 of which is engaged by trunnions 8 on the lifting member 9. The shaft 4 also has outer arms 10 and the arrangement is such that as the member 9 engages and lifts the container the arms 10 engage it near its edges so that it is stabilized. A similar arrangement may be provided for the jack 3. The jacks may be operated from a single pump having a valve which allows the jacks to be operated together or in turn.
Patent GB-1113137-A (GB)
Title: Ball-point pen mechanism
IPC: B43K24/08
Filed: 1966-05-24
Abstract: 1,113,137. Retractable ball-point pen. RADIANT PEN CORPORATION. 24 May, 1966 [16 July, 1965], No. 23006/66. Heading B6P. In the retracting mechanism of a ball-point pen, of the type having a plunger or push button 30, a ratchet member or turn button 40, and an internally grooved and toothed barrel or cap member 10, the ratchet member 40 is provided with a hub 52 from which laterally extend four radial ears 54 with a tapered tooth 56 on the upper face of each. The upper edge of the hub 52 is provided with an auxiliary set of eight circularly arranged teeth 60, which engage eight teeth 58 on the bottom edge of the plunger 30.
Patent GB-366449-A (GB)
Title: Improved process for the electrical cleaning of gases
IPC: B03C3/36
Filed: 1930-07-30
Abstract: In a process for the electrical purification of gases, the velocity of flow of the gases between the electrodes is greater than 10 metres per second, thus increasing the flash-over voltage by about 80-100 per cent above normal.
Patent GB-441262-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/34
Filed: 1935-08-15
Abstract: 441,262. Vacuum cleaners. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 570, Lexington Avenue, New York, U.S.A., and KROENLEIN, H. A., 22, Forstlerstrasse, Botnang, Stuttgart, Germany. Aug. 15,1935, No. 23017. [Class 8 (i)] A vacuum cleaner comprises an outer casing 5 formed in one part and including the suction nozzle, and a base portion enclosed by this casing and having a wall 36 forming the periphery of the fan chamber. The wall supports the vertical motor 40 by a rubber &c. cushion 48. The front wheels are enclosed by the casing 5 which is formed with a grill 13 for the lamp 14, and a second grill for the ventilation of the motor.
Patent GB-426113-A (GB)
Title: Improvements relating to liquid fuel burners for refrigerators
IPC: F21V3/00
Filed: 1934-08-09
Abstract: 426,113. Burner chimneys for refrigerators. ELECTROLUX, Ltd., Luton. -(Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm) Aug. 9, 1934, No. 23083. Convention date, July 27. [Class 75 (ii)] In a domestic refrigerating apparatus provided with a flue for carrying away the products of combustion of a liquid fuel burner, the glass chimney intermediate the burner and the flue is provided at its upper edge engaging around the lower end of the flue with a protective metal ring. In the form shown in Fig. 1, a brass ring 11 is bent over at its outer edge to lie flush with the upper edge of the chimney 10, whilst in the form shown in Fig. 2 a U- shaped ring is disposed astride the rim of the chimney.