baber/WOPTO huggingface dataset:
Patent GB-1186421-A (GB)
Title: Insulated-Gate Field-Effect Transistor
IPC: H01L27/02
Filed: 1967-03-29
Abstract: 1,186,421. Protecting field effect transistors. MATSUSHITA ELECTRONICS CORP. 29 March, 1967 [29 March, 1966], No. 11887/67. Heading H3T. [Also in Division H1] An insulated gate field effect transistor formed in a wafer of one conductivity type, has source and drain regions of opposite conductivity type and also a separate region of the opposite type adjacent the source electrode and directly connected with the gate electrode so that when an excessive voltage is applied to the gate electrode, punch through effect occurs to connect the gate to the source before breakdown of the insulator layer, Fig. 7, shows an embodiment comprising a source 1, drain 4, island region 13 of the same conductivity type as source and drain effectively shortening the channel length, and junction region 10 adjacent the source 1. The semiconductor may consist of silicon, germanium or gallium arsenide and the insulator of silicon monoxide, silicon dioxide, magnesium fluoride, or silicon nitride.
Patent GB-695748-A (GB)
Title: Process for the preparation of copper-containing disazo dyestuffs
IPC: C09B45/28
Filed: 1951-05-22
Abstract: The invention comprises copper-containing disazo dyestuffs of the formula <FORM:0695748/IV (c)/1> where Y is hydrogen or alkyl and Z is hydrogen, alkyl, phenyl or substituted phenyl.  These are made by coupling J acid urea with 1 mol. of diazotized 2-aminophenol-4-sulphonic acid (or its methyl ether) and 1 mol. of the appropriate diazotized 2-aminophenol-4-sulphonamide (or methyl ether thereof), and coppering the product.  The two diazo compounds may be added separately in either order.  The coppered products dye cotton and regenerated cellulose in Bordeaux shades.  In the examples the following dyestuffs are made and treated with ammoniacal copper oxide: (1) 2-aminophenol-4-sulphonic acid --> J acid urea \sM 2-aminophenol-4-sulphonanilide; (2) 2-amino-phenol - 4 - sulphon - N - ethylanilide --> J acid urea \sM 2-aminoanisole-4-sulphonic acid; (3) 2-aminoanisole-4-sulphonic acid --> J acid urea \sM 2 - aminoanisole - 4 - sulphonamide.  Other suitable components are listed, in which Y and Z are hydrogen, methyl, ethyl, propyl, phenyl, p-tolyl, o-methoxyphenyl and m-chlorophenyl. Specification 142,448, [Class 2 (iii)], is referred to.
Patent GB-163896-A (GB)
Title: An improvement in photograph printing machine
IPC: G03B27/02
Filed: 1920-04-30
Abstract: 163,896. Bunning, E. G. April 30, 1920. Printing-apparatus. - In a printing-machine having a pressure board in two disconnected parts 1, 4, Fig. 1, both parts are raised simultaneously by moving the handle 21 but cannot be raised directly by hand and when in the open position, Fig. 10, the narrow part 4 is held by the :spindle 12 of a resiliently pivoted U-frame 11 so that this part 4 can be independently lowered. The parts 1, 4 are mounted on arms 3, 5 pivoted to a fixed frame 2 on spindles 32, 33 respectively. The opposite end of the arms 3 are pivoted by a pin 10 to a frame 8, the central rod 7 of which passes through a rocking spindle 6 on the frame 2. The pin 10 is connected by a link 16 with a cranked arm 17 of a shaft 18 turning in another fixed frame and connected to the operating handle 21 by levers 19, 20. The U-frame 11, Fig. 3, is mounted on the spindle 10 and resiliently held in engagement with a stop 14 on the frame 8 by a spring 15. When the pressure board is lowered a plug switch on the handle-lever 21 switches on the light and on opening the frame a pin 23 on a cranked lever 22 springs into a slot 25 of the ccnnecting-link 20 and holds the pressure board in raised position. To lower the pressure board, the protruding portion 22a of the lever 22 is depressed, releasing the lever 20 and handle 21. The board falls under its own weight and under the influence of a coiled spring 26 on the central rod 7 which in the open position is compressed between the rocking spindle 6 and the end of the frame 8. The part 1 of the pressure board has projections 42 overlapping the part 4 and cannot be raised directly by hand owing to the relative positions of the spindle 32, about which the lever 3 turns, and the spindle 6, 10.
Patent GB-661604-A (GB)
Title: Improvements in or relating to the panelling of domestic baths
IPC: A47K3/16
Filed: 1949-05-05
Abstract: 661,604. Furniture joints. ARMES, R. J. Feb. 17, 1950. [May 5, 1949] No. 11994/49. Class 52 (ii). Bath side panels are mounted so as to slope downwardly and inwardly by means of members 3 having a vertical front face 4 a side face 5 of triangular form and flanges 6 at right angles to the face 5 to which flange 6 the bath side panel 1 is bolted &c. A central member 9 may be provided for the mounting of two panels 1 or for securement to the face of a single panel the member in this case being provided with opposite side faces 5 and flanges 6. The end members 3 may have in addition a flange 7 for securement of an end panel or the flange 7 may be turned outwardly when it is desired to secure the end members to a wall.
Patent GB-311537-A (GB)
Title: Improvements in and relating to the manufacture of suit cases, attache cases, valises and the like
IPC: A45C5/02
Filed: 1928-04-25
Abstract: 311,537. Dix, P., and Noton, Ltd., S. April 25, 1928. Straps and bands, strengthening.- Relates to reinforcements for the open or mouth edges of suit and like cases. The blank is shaped so that the reinforcement a can be laid unbent along the marginal edges of three sides b, b<1>. b<2>, the edges being lapped and stitched thereover as shown in Fig. 1. The sides b<1>, b<2> with the reinforcement are then bent up and the free scarfed ends f of the reinforcement welded or otherwise secured together, as shown in Fig. 3. The mar ginal portion q of the fourth side b<3> is then lapped over and stitched or riveted to the reinforcement. The reinforcement may be of square, circular, oval or other section, and may be of wood, cane, or the like, in place of metal.
Patent GB-854168-A (GB)
Title: Multi-cylinder two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1957-04-12
Abstract: 854,168. Charging two-stroke engines; regulating. SULZER FRERES S.A. April 12, 1957 [April 14, 1956], No. 12092/57. Classes 7(2) and 7(6). A multi-cylinder diesel engine has inlet ports 3, Fig. 1, supplied with scavenging and charging air by an exhaust gas turbo-supercharger 6, 7 via a common manifold 10 and individual cylinder inlet passages 11 into which pumping chambers 12 open laterally and which have nozzles or oneway valves 14 tending to prevent back flow and the action of which can be varied, e.g. so that at starting and low speeds the valves 14 are operative to render the chambers 12 effective to supplement the supercharger 7 and at high speeds the valves 14 are rendered inoperative so that pumping losses due to the chambers 12 are obviated. As shown each valve 14 is mounted on a lift valve 18 which can be operated by a handle 15, but automatic variation of the action of the nozzles or one-way valves may be effected cyclically or in accordance with engine speed, torque or fuel control setting, supercharger speed or delivery pressure, exhaust gas pressure or temperature or cooling-water temperature. In Fig. 2 (not shown) a nozzle is mounted on a flap valve operated under engine governor control; in Fig. 3 (not shown) two one-way valves in parallel are mounted on a butterfly valve linkage-operated by a piston acted on by pressure in the manifold 10; in Fig. 4 a one-way valve 14 is mounted on a slide valve 20 cyclically operated, subject to the overriding control of such a piston 25, by an engine-driven camshaft- 27 movable to vary the open period of the valve 20; in Fig. 5 (not shown) a nozzle by-pass passage is controlled by a butterfly valve operated by a piston as above; Fig. 6 shows a one-way valve 14 having a pneumatic dashpot 36 which partially or wholly prevents the valve from closing at high engine speeds. Reference is made to the use of an hydraulic dashpot, and of several by-pass valves operated in stages.
Patent GB-956246-A (GB)
Title: Improvements in or relating to the manufacture of cellulose ethers
IPC: C08B11/08
Filed: 1961-04-05
Abstract: Cellulose is hydroxyalkylated to an MS not exceeding 1.0 in the presence of an alkali and water and a substantially water-miscible ketone as diluent, the alkali/cellulose and water/cellulose ratios being 0.2/1-0.8/1 and 0.8/1-4.0/1 respectively, and after neutralization of 70%-98% of the alkali, is subjected to further hydroxyalkylation to MS 1.5-3.0. With the remaining amount of alkali without isolating the partially hydroxyalkylated product. The process is applicable to the formation of e.g. hydroxyethyl, hydroxypropyl and hydroxybutyl celluloses using such hydroxyalkylating agents as e.g. ethylene oxide, propylene oxide, mesityl oxide and 3, 4-epoxy-1-butene. Preferred alkalis are sodium and potassium hydroxides.  Suitable ketone diluents are acetone and methyl ethyl ketone.  Suitable acids for neutralization of the alkali include acetic, hydrochloric, nitric, propionic and benzoic acids.  In an example, a mixture of cotton linters, acetone, water, flake sodium hydroxide are stirred for 1 hour, when ethylene oxide is added and the mixture heated at 80 DEG C. for 1 1/2 hours.  After neutralization of 80% of the alkali by addition of glacial acetic acid, heating is continued for 1 1/2 hours. After complete neutralization of the alkali, the hydroxyethyl cellulose is washed with aqueous acetone, then with anhydrous acetone and dried.
Patent GB-474381-A (GB)
Title: Improvements in or relating to the jointing of electric high frequency concentric feeders
IPC: H01P1/30
Filed: 1936-04-29
Abstract: 474,381. Couplings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and TRING- HAM, W. S. L. April 29, 1936, No. 12209. [Class 38 (i)] An expansion joint for the inner conductor of concentric high frequency feeders is located at the end of a run where the feeder enters a junction box, switch box, &c. The joint consists of a split end 8 of the inner conductor fitting over a length 11 of tube and clamped thereto by a collar 17. Between the nuts 13, 15 are clamped the flattened end of a branch conductor at right-angles to the conductor 8 and a strip 21 carrying a disc 22 forming a variable condenser with a disc 23 carried on the casing 19 to which the outer of the concentric conductors is attached. This condenser compensates for the disturbance of the characteristics of the system caused by the joint. The expansion joint for the outer conductor does not so greatly affect the characteristics of the system and so can be arranged at any point in the run as heretofore. For indoor use it can be similar to the joint 8, 11 of the inner conductor but for outdoor use a sleeve attached to one length of conductor and sliding over the adjacent length is sealed to the latter by a metal box with corrugated flexible ends soldered one to the sleeve and the other to the conductor sliding therein.
Patent GB-1118752-A (GB)
Title: A method and apparatus for forming a continuous rod of loose fibrous materials
Inventor: WILDE FRIEDRICH
IPC: A24C5/18
Filed: 1966-03-19
Abstract: 1,118,752. Feeding tobacco. TABAK- und INDUSTRIEMASCHINEN DRESDEN VEB. 19 March, 1966, No. 12219/66. Heading A2C. Tobacco particles are fed by rollers 1, 2 and 3 through an orifice 42 to an inertia separator 6 where they are entrained in an air stream created by a fan 10, the air circulating through a pipe 11, and fed by an air stream issuing from a nozzle 13, through a device 18 including a contrary directed concentrically enveloping air stream from a nozzle 16 to a grooved suction wheel 30 and co-operating perforated band 29 between which a continuous rod of tobacco is formed. Suction is applied to the wheel 30 through a pipeline 37 provided with adjusting devices 38, 39 and 46 by the fan 10. Variation in the suction in the line 37 operates the devices 38, 39 to control the relative positioning of the nozzle 16 and the internal nozzle 14 through which the tobacco stream passes and also the devices 46 to control, through valve 26, the pressure in lines 22 and 23 which feed air under pressure from a source 27 to the nozzles 13 and 16 respectively. The devices 38, 39 and 46 all operate in a sense to maintain the suction in line 37 constant and hence to maintain the uniformity of the rod being formed. Surplus tobacco trimmed from the stream by the air issuing from nozzle 16 in the device 18 is fed through a line 19 to the separator or the rollers 1 and 2 depending on the position of the valve 43.
Patent GB-540473-A (GB)
Title: Improvements in or relating to vehicle windscreens
IPC: B60J1/04
Filed: 1940-07-27
Abstract: 540,473. Windscreens for vehicles. PERFECTA MOTOR EQUIPMENTS, Ltd., and BOSTOCK, C. W. July 27, 1940, No. 12222. [Class 20 (iii) ) ] A vehicle windscreen is opened by being slid upwardly and backwardly to take up a horizontal position under the roof. The glass panel a is attached by flanges e to upper and lower rollers g, the upper rollers travelling in horizontal guides j and the lower rollers in vertical guides h. The panel is secured by catches which force it against rubber weathering strips s carried by inwardly projecting flanges l, the catches being released before moving the panel.
Patent GB-1376286-A (GB)
Title: Communication receiver
IPC: H03J5/02
Filed: 1973-03-14
Abstract: 1376286 Receiver channel selection; AFC systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 March 1973 [17  March 1972] 12248/73 Headings H3Q and H3A In a communications receiver comprising a tunable input circuit 2 whose tuning is determined by a tuning voltage applied to a tuning control input B of the receiver input circuit and a mixer stage 3, a local oscillator signal is derived from a synthesizer 14 which is provided with a channel selector unit 13 and is constituted by a voltage controlled oscillator, VCO, 15 which is incorporated in a coarse and fine tuning control loop 18, 19. Further the oscillator coarse tuning control loop has means 23 for supplying a digital signal which is representative of the oscillator coarse tuning voltage determined by the channel selector unit and the receiver has a code converter 24 to which at least the digital signal is applied and whose output circuit, constituted by a digital to analogue converter 25, is connected to the tuning control input B of the receiver input circuit 2. The code converter 24 converts the oscillator coarse tuning voltage into the associated tuning voltage for the receiver input circuit. The frequency division ratio of a frequency divider 16 can be adjusted by a push button board 17 to select the required channel. Operation of the channel selector unit 13 causes up/down counters 26, 27 to be brought to their up counting position. A selected output frequency from the frequency divider 16 of different frequency from that of a reference pulse source 21 causes a frequency discriminator 20 in the coarse tuning control loop 18 to apply pulses to the counter 26 so as to cause a stepwise increase of the coarse tuning voltage at the output of digital to analogue converter 29. When the contents of the counter 26 reaches its maximum a decoder 28 resets the counter 26 to its down counting position and increases the count in the counter 27 by one. The voltage applied through a digital to analogue converter 30 to the VCO 15 increases so that the oscillator is changed over to a subsequent tuning sub-range of which three are provided (Fig. 2b, not shown). The above is repeated until the frequency discriminator 20 no longer supplies any output pulses. The input circuit 4 or 4<SP>1</SP> selected is determined by the code converter 24 whose output at A operates switches 10, 11 and 12 to one or other position so that the tuning voltage output B from the D/A converter 25 is supplied to the variable capacity diodes of the input circuit 4 or 4<SP>1</SP>. The fine tuning control loop 19 includes a phase comparator 22. A flip-flop 31 provides a "0" or "1" signal to the code converter 24 dependent on the phase difference between its input signals. The code converter 24 may be a read-only memory or a programmable memory. The receiver may be used in a transmitter-receiver.
Patent GB-393740-A (GB)
Title: Device for the production of high gloss photographs
IPC: G03D15/02
Filed: 1932-04-29
Abstract: 393,740. Photographic drying and glazing apparatus. GERSTER, H., Wensikendorfer Weg, Schmachtenhagen, near Oranienburg, Germany. April 29, 1932, No. 12363. Convention date, Oct. 27, 1931. [Class 98 (ii).] Apparatus for drying and glazing photographs, comprising a moving porous band which presses the wet photographs against a polished and heated moving surface, is characterised by one or more additional heating devices around or through which the band alone is diverted to dry it after its initial contact with a moist photograph, the band being returned to the main heated surface, preferably close to the point at which it was diverted, in order to continue to press the photograph thereon. As shown, photographs are passed round a polished and heated rotary drum 1 by an endless moving band 2 which presses them on the drum. After passing from the entraining roller 4 round a part of the periphery of the drum, the band is diverted by a roller 5 to a rotary heated drum or roller 6 or through a heated box, whence it passes back round a roller 7 to the drum 1. The rollers 5, 7 are placed close together so that the photographs are not diverted. The band may be diverted and returned in this manner in succession to two or more auxiliary heating devices. The heating of the drum 6 is controlled from the heating or driving of the drum 1 so that both are started or stopped together.
Patent GB-1348384-A (GB)
Title: Mechanisms for opening out a plurality of hingedly interconnected panels
IPC: B64G1/44
Filed: 1971-04-30
Abstract: 1348384 Unfolding mechanism MESSERSCHMITT - BOLKOW - BLOHM GmbH 30 April 1971 [2 May 1970] 12419/71 Heading E2M A mechanism for opening out a row of panels which are hinged together and folded up in concertina-fashion is provided. Alternate panels 5 and 5' are connected by means of drive devices 10. These comprise discs 15, rigidly attached to the panels 5 and 5' so that the axis of the hinge passes through the centre of the disc, and flexible belts passing around the discs. Each panel 5 or 5' has a disc at each hinge. Movement of one panel, for instance 5', will thus move the interconnected panels 5 in the same sense and so open out the whole row. Optionally, the hinges may comprise torsion bars 8, which, when the row is folded up, provide a motive force for the unfolding. Further discs 16 may be provided, attached to the torsion bars 8 so as to rotate with them. Adjacent pairs of discs 16 are interconnected by flexible drive means to give the drive devices 11, the effect of which is to even out the unfolding. In the embodiment shown, two rows 3 and 4 of panels are provided about a central body 1. These are interconnected by drive means 13 to provide mutual assistance in the unfolding and so give an even movement. Dampers 14 may be provided to slow down the movement. The panels 5', adjacent to the central body 1 are of half the width of panels 5 and 6. This ensures the symmetry of the row 3 and 4 about body 1 before, during and after the unfolding. It is envisaged that the panels are solar cells.
Patent GB-866735-A (GB)
Title: Improvements in or relating to counting apparatus
Inventor: DAGNALL RADFORD HENRY
IPC: H03K23/76
Filed: 1957-04-17
Abstract: 866,735. Circuits employing bi-stable magnetic elements. INTERNATIONAL COMPUTERS & TABULATORS Ltd. March 4, 1958 [April 17, 1957], No. 12546/57. Class 40 (9). [Also in Group XIX] A binary counting element is reset at each input pulse time by an operating pulse, and if an output pulse is thus obtained with no corresponding input pulse, or if an input pulse is received and no output pulse obtained on resetting, the element is set to re-enter the (modified) information. Fig. 1 shows one stage of a binary counter with a magnetic core 1 which can be set to " 1 " by the combined effect of a current clock pulse in winding 2 and a pulse in winding 4, and which when reset by the initial part of the clock pulse applied to winding 2 acts through output winding 3, and cathode followers 9 and 10, to open gate 23 and allow clock pulses from 19 through gate 21 to cause valve 6 to provide the necessary energization of winding 4 to set itself to " 1 " again, Hence clock pulses on line 2 cause core 1, if set to " 1," to be reset and subsequently set to " 1 " again provided that gate 21 is open, the gate 21 being closed by a positive input signal on line 31 simultaneous with the positive signal on the cathode of valve 10 acting through " and " gate 32 and inverter 24; in this case a " carry " signal appears at 33. If the stage initially registers " 0 " it will be set to " 1 " by an input at 31 opening gate 30 to clock pulses via 21. At 22 is read out the digit stored and a clearing pulse applied at 25 discharges condenser 16 after each pulse. Fig. 2 shows 3 stages A, B, C of a multi-denominational counter in which the re-insertion circuits 37A-37C for the magnetic cores 34-36, A-C, are as shown in Fig. 1. Read-out pulses are applied selectively to one only of the lines 2, 38, 39 so that the count registered is read out at 22A-22C and reinserted on the same cores increased by any input at 31A. In a modification of Fig. 1, the output of valve 6 of each stage may be switched to the winding 4 of the next to form a shifting register enabling the serial read-out of the number accumulated therein by the " Fig. 1 " method.
Patent GB-1027873-A (GB)
Title: Torch
Inventor: CHENG WING GEE
IPC: F21V17/02
Filed: 1963-03-29
Abstract: 1,027,873. Electric battery lamps. MEYER MANUFACTURING CO. Ltd. March 19, 1964 [March 29, 1963], No. 12547/63. Heading F4R. A reflector 1 carrying the torch bulb and held against a transparent disc 3 by a plastics ring 2 is urged towards the front of the torch by a coil spring 6. One end of the spring bears on the ring 2 where the latter overlaps the rear face of the reflector, and the other end abuts the front edge 15 of the battery casing 13. The disc 3 abuts the front edge 5 of a cap 4, and when the cap is unscrewed from the casing 13 the other end of the spring bears against the first turn of the screw-thread 7 so that the spring and reflector are prevented from falling out of the cap. The other end of the casing is closed by a cap 12 (not shown), which may incorporate a compartment for a spare bulb. A hanger loop 14 formed from sheet metal is secured to the cap 12 and biased by a leaf spring 21 towards either its fully projecting position or a position flat against the cap.