baber/WOPTO huggingface dataset:
Patent GB-1505113-A (GB)
Title: Rotary cutting blades for cutting machines
IPC: B23D35/00
Filed: 1975-03-15
Abstract: 1505113 Shearing WYLE LABORATORIES 15 March 1975 10892/75 Heading B3W A rotary cutting knife A comprises a disc 10 with a scalloped edge 16 including portions 30 and 32, and disc faces 12, 14 conveying towards the cutting edge, the angle of conveyance (a) Fig. 3 (not shown), of portions (42), 44 differing from the angle b of portions 46, 48, Fig. 4. The scalloped areas 34, 36 thus formed have inner scalloped edges 38, 40 of smaller radius of curvature than edges 30, 32. For cutting steelreinforced rubber hose 36, the knife is mounted in a machine (C) (Fig. 1, not shown) which includes a clamp (78) for forming a bend in the hose at the knife A which is rotated at speeds of between 2000 and 4000 r.p.m. by a motor (82). The relieved portions 32 of the edge 16 and the adjacent portions 46, 48 do not contact the hose during cutting to allow for the dissipation of heat.
Patent GB-426099-A (GB)
Title: Improvements in and relating to the production of sponge-like regenerated cellulose structures particularly for electric insulation
IPC: H01B7/02
Filed: 1934-04-11
Abstract: Sponge-like structures are obtained by shaping and coagulating a composition containing viscose, solid water-soluble salts and organic protective colloids.  The composition may be extruded in thread-like form through nozzles.  The protective colloid may be starch, flour, an organic acid such as a resin acid, or tannin, or rubber.  The alkalinity of the viscose may be varied by the nature and proportion of the protective colloid added, being increased by addition of alkaline rubber latex, and reduced by addition of rosin.  In the first case, the sponge-like mass has a larger, and in the second case a smaller volume than without the addition. The sponge-like material is of particular use as an insulation for electric conductors.  If desired, fibrous materials may be weaved, wrapped, or wound round the thread-like viscous product pressed out of the nozzles before the coagulation step.  The product is then coagulated in a boiling salt bath while under mechanical compression by the wrapping and this results in a product of increased mechanical strength.  In an example, a composition containing viscose, solid anhydrous and hydrated sodium sulphate, powdered rosin, and cotton linters, is kneaded into a paste and extruded round a wire which is to be insulated.  The coated wire is then placed in boiling sodium sulphate solution to obtain a sponge-like coagulated coating.  In other examples, starch, resin soap, alkaline rubber latex, tannin, and a mixture of resin and rubber latex, are used instead of the rosin.
Patent GB-109426-A (GB)
IPC: B41D3/04
Abstract: 109,426. Printing Machinery Co., (Wood, H. A. W.). Sept. 7, 1916. Stereotype. - In a mould for casting curved stereotype plates, the concave back is provided with matrix clamps and with plates for clamping a tail sheet to the back, the tail - sheet clamping plates being movable relatively to the matrix clamps, to facilitate the insertion or removal of the matrix. Fig. 1 shows one corner of the casting back B, the other corner at the same end being similar. The tail sheet 130 is attached to a tail-sheet plate 131 secured to studs 132 angularly and axially movable in brackets 133 on a matrix clip plate 134 mounted on a matrix clip bar 135 movable on a pivot 136 carried by the back B. A spring 138 on the pivot 136 normally holds the parts away from the back B as shown in Fig. 2. The plate 134 is connected to the bar 135 by pins 142 engaging inclined slots 143 in the bar so that, by moving the plate 134 longitudinally, the matrix M is clamped between the projection 139 of the plate 134 and the edge of the bar 135 or is released therefrom. The longitudinal movement of the plate 134 is effected by a toggle comprising a hand-lever 144 and an adjustable link 147 connected to the plate 134, the movement of the plate in the clamping direction being limited by a stop pin 151 and an adjustable wedge block 160. The plate 131 carries a projection 152 engaging a cam 153 on the bar 135. When the plate 134 is moved to the matrix releasing position, the plate 131 is moved with it and the projection 152 moves to the other side of the cam projection 153 as shown in Fig. 4 thereby preventing the return of the plate 131 with the plate 134 when that plate is moved back longitudinally to clamp the new matrix. The plate 131 is returned to normal position by a spring 163 when a handle 162 on the stud 132 is turned to release the projection 152 from the cam 153. The pivot 136 carries a projection 93, Fig. 3, adapted to be engaged by a projection on the core when the mould is closed, to move the bar 135 into the casting position. The bar 135 may also be held in this position or in a position intermediate to the casting position and the full-open position shown in Fig. 2 by means of a hand-lever 154 carrying a roller 157 adapted to engage in either of two notches 159, 159<a> in an arm 158 on the pivot 136.
Patent GB-734383-A (GB)
Title: Improvements relating to the fronts of domestic fires
Inventor: HOULT FREDERICK HERBERT
IPC: F24B1/191
Filed: 1953-04-21
Abstract: 734,383. Fireplaces. NEWTON, CHAMBERS & CO., Ltd. April 21, 1954 [April 21, 1953], No. 10963/53. Class 126. In a continuous burning type of domestic fireplace in which a " spinner " type valve in the ashpit door controls the air admission to the space beneath the grate a recess 9 is made in the bottom of the door 3 immediately beneath and overlapped by the " spinner disc 6 to form a space which the bent end 15 of a tool 14 can enter when the door is to be removed, and the sealing surface 10 of the disc lies radially inwards from the edge thereof so that the tool can engage the rear face of the disc outside this sealing surface. To enable the disc to be turned easily it has a diametrical rib 16 for engagement by the end of the tool which is forked for this purpose.
Patent GB-1189946-A (GB)
Title: Method of and Dock for the Construction of Floatable Vessels
IPC: B63B9/00
Filed: 1968-03-06
Abstract: 1,189,946. Shipbuilding and docks. NIPPON KOKAN K.K. 6 March, 1968 [9 March, 1967], No. 10969/68. Heading B7S. A dock for constructing hulls comprises two exits with respective gates 1, and means for dividing the dock into two watertight compartments. In operation of the dock, a watertight gate 6 is positioned in a pair of recesses 5 and a stern 8 is formed in the smaller compartment while a hull 7 is finished. Gate 1 adjacent hull 7 is then opened and hull 7 floated out. After replacing gate 1 the dock is drained and gate 6 moved into another pair of recesses 5 to form a larger compartment for completion of the hull of stern 8. A further stern 9 is simultaneously formed in the smaller compartment. The completed hull with stern 8 is floated out after opening of the adjacent gate 1. Alternatively a Y-shaped dock is formed (Fig. 2, not shown), each branch having recesses 5 and gates (1) opening on to the water.
Patent GB-1444828-A (GB)
IPC: H04M9/08
Filed: 1974-03-12
Abstract: 1444828 Loudspeaking telephones NORTHERN ELECTRIC CO Ltd 12 March 1974 [12 March 1973] 11001/74 Heading H4R In a loudspeaking telephone, Fig. 1 incorporating switching from transmit to receive, either manually or automatically in response to signal level, the gain in the transmit channel is controlled inversely in dependence on the ambient noise level picked up by the microphone so that the signal transmitted to line is more nearly a constant level. As described a transmit channel 10 and receive channel 20 are coupled to a line 2 by a hybrid network 3. The transmit and receive channel signals at hybrid 3 are rectified at 16 and 24 and compared in comparator 60 to provide an output signal which is high when the receive signal is greater than the transmit signal, and low when the receive signal is less than or equal to the transmit signal. In addition the signal in the transmit channel 10 at the input to the variable attenuator 13 is rectified at 14 and processed at 30 to provide a noise reference signal which is compared with the rectified transmit channel signal in comparator 40 to provide a transmit channel active signal in line 71. The outputs of comparators 40 and 60 are fed to the reference signal source 70 to provide a control signal for varying the loss in the attenuators 13 and 21 in the transmit and receive channels, inversely to main the loop gain approximately constant. The reference signal source 70 provides a control signal for the attenuators which has an upper limit which gives maximum receive channel gain and minimum transmit channel gain when the receive signal exceeds the transmit signal has an intermediate value in an idle position, and a value tending to a lower limit when the transmit channel signal exceeds the receive signal, the actual value of the control signal in the idle or transmit conditions being variable in dependence on the value of the noise reference signal current fed to the switch 45 from the circuit 30. The output of the transmit/receive comparator 60 is fed to a receive transition booster 62 to increase the signal level from rectifier 24 immediately after switching to receive so as to increase the sensitivity to weak received signals. The output of comparator 60 is also coupled via the transition delay circuit 67 to augment the noise reference signal fed to comparator 40 when the circuit is in the receive condition, and for a short time, e.g. 0À4 secs., after, so as to reduce the sensitivity to voice signals and prevent acoustic coupling from the receive to transmit channels effecting switching to transmit. The noise averaging circuit 30 which has a slow attack and fast release times is described with respect to Fig. 2 (not shown). The reference signal source 70 which provides different switching time constands depending on whether the switching is taking place to or from an idle condition or between active states is described with respect to Fig. 3 (not shown). The transition booster 62 and transition decay circuits are described relative Figs. 4 and 5 (not shown) and the signal rectifiers 14, 16 and 24 with respect to Fig. 6 (not shown).
Patent GB-141917-A (GB)
Title: A door bolt and door holder
IPC: E05C17/44
Filed: 1919-05-03
Abstract: 141,917. Horsfall, E. May 3, 1919. Door holders.-A door bolt and door holder consists of a tube a provided with a spindle b, having screw threads d engaging with the nut e, its inner end working in the plunger b<2>, and a bolt f, having at its upper end the plunger f<1>, and around which is coiled the spring i. The ends of a stronger spring h are attached to the reduced extensions b<3> and f<2> of the plungers. On rotating the spindle b, the bolt is shot by the spring h against the action of the spring i. In modificacations, the spindle may be provided with a tooth to engage with a series of rack teeth formed on the tube a, or it may be made slidable and actuated by a pivoted handle. The bolt may have a tip of rubber &c. or it may engage with a socket.
Patent GB-1021922-A (GB)
Title: Improvements in or relating to electrolytic test equipment
Inventor: CLAYSON KENNETH
IPC: G01N17/02
Filed: 1963-03-20
Abstract: 1,021,922. Determining resistance to corrosion. WILMOT-BREEDON Ltd. March 18, 1964 [March 20, 1963], No. 11026/63. Heading G1N. In an arrangement for determining the resistance to corrosion of a metal 5 Fig. 2 (not shown) provided with a protective surface layer 2 of relatively high electrical resistance, in which an electrolytic cell 1 using the metal under test as one electrode is set up on the surface to be tested and a voltage is applied to the electrodes 5. 6 in such a way that it varies with the internal cell resistance, the voltage across the electrodes is applied to a motor 18 Fig. 1 (not shown) the speed of which is voltage dependent, and the total motor driven movement over a predetermined period is indicated by a counter 19. The material exemplified is anodised aluminium and the second electrode which is a platinum rod is adjustable as regards depth of immersion in the electrolyte by being slidable in a rubber bung 8. The electrolyte suggested is an aqueous solution of sodium chloride and cupric chloride. The voltage which is maintained constant by a Zener diode 14 is applied to the cell over resistors R2, R3, and the potential at their junction is applied to the motor 18 through a voltage divider R4 R5 and a servo-potentiometer 17 which produces an output current proportional to the input voltage. The predetermined time is controlled by a timer 15 in response to the closing of switch S.
Patent GB-690433-A (GB)
Title: Improvements in or relating to light-sensitive photo-copying material
IPC: G03C1/52
Filed: 1950-05-04
Abstract: 690,433. Photographic materials. OZALID CO., Ltd., and MURRAY, H. D. April 19, 1951 [May 4, 1950], No. 11101/50. Class 98 (ii). A light-sensitive emulsion or like lightsensitive layer is overcoated with a molten thermoplastic material (e.g. polyethylene), which is insoluble in water and most organic solvents, does not wet paper, and melts at a temperature not greatly exceeding 100‹ C., say lower than 150‹ C. The support may be porous (e.g. of paper or cloth) and may be sensitized with a diazotype composition. Paper coated with an aqueous diazotype sensitizing solution containing either 2-diazo-1-naphthol-5- sulphonic acid, nickel sulphate, thiourea, phloroglucinol, citric acid, sodium chloride, and saponin or p-diazodiphenylamine sulphate, thiourea, R-salt, naphthalenetrisulphonic acid, and glycerol is dried, supercoated with fused polyethylene (e.g. " Alkathene ", Registered Trade Mark), and passed over a chilled roller. The exposed material is developed with ammonia vapour.
Patent GB-1112042-A (GB)
Title: Improvements in and relating to gas heating devices
Inventor: CLABBURN ROBIN JAMES THOMAS
IPC: H05B3/00
Filed: 1965-03-16
Abstract: 1,112,042. Electric resistance gas heaters. RAYCHEM Ltd. 16 March, 1966 [16 March. 1965; 26 May, 1965], Nos. 11201/65 and 22363/65. Heading H5H. Gas heating apparatus comprises a tube nest, a thermostat 8 and a heater 11, in the form of a resistance element embedded in an electrically insulating material, both in contact with a gas permeable heat exchanger, e.g. gauze 10 lining the innermost tube 13 of the nest arranged so that gas passes over each tube and finally over the thermostat and heater. In a heater in pistol form a flexible supply tube passes through a handle 2 to the front end of an outer tube 12. Air, CO 2  or N 2  flows between the outer tube and an inner tube 13, cooling the outer tube, passes through holes 4 into the inner tube, through the gauze 10 and exhausts through gauze 14 and a nozzle 23. The thermostat setting can be adjusted by a screw 5. The nest may comprise three tubes of stainless steel. A switch 19 may be mounted in the handle or it may be foot operated.
Patent GB-1596674-A (GB)
Title: Shaping arrangement
IPC: H02M3/155
Filed: 1978-03-21
Abstract: In power supply units for supplying direct current to electrical equipment, a DC voltage is generated via a transformer (1), a rectifier (5) and a smoothing component (8), of which one pole (6) is connected via the emitter-collector path of a switching transistor (9) to the electrical equipment. The base of the switching transistor (9) is connected on the one hand via a resistor (13) to its emitter and on the other hand via a further resistor (14) to the other pole (7) of the DC voltage. The switching transistor (9) through-connects only when a voltage threshold has been exceeded at which a feed voltage is present on the output side of the power supply unit which is adequate for the connected equipment. Since the switching transistor (9) is not activated or de-activated quickly enough, voltages are present on the output side which are temporarily too low and at which equipment malfunction can occur. To increase the switching speed of the switching transistor (9), its base is connected via the further resistor (14) and the switching path of a further transistor (15) to the other pole (7) of the DC voltage whose base is connected to the tap (16) of a voltage divider (17, 18) connected to the DC voltage and via a feedback resistor (19) to the collector of the switching transistor (9). <IMAGE>
Patent GB-210001-A (GB)
Title: Improvements in or relating to windmotors
IPC: F03D7/02
Filed: 1923-04-26
Abstract: 210,001. Gardner, J. April 26, 1923. Addition to 200,535. Regulating.-A keel 32 is provided on the governor vane 9 of the wind-motor described in the parent Specification so as to turn the wind-motor into a leeward position on a change of direction of the wind. The keel 32 is preferably diagonal to the shaft of the governor vane 9 and is inclined to the plane of the governor vane so as to form a pocket on the leeward side.
Patent GB-1547661-A (GB)
Title: Process for the optimum control of dyeing processes
IPC: D06P5/00
Filed: 1976-03-19
Abstract: The process permits the process course when dyeing or optically brightening textile material according to the exhaust method, - e.g. with respect to the quality of the dyeing or the brightening effect and/or to the minimisation of the expenditure of time, energy or auxiliary chemicals to be consumed -, to be conducted optimally. For the determination of the concentration change of the dyestuffs or optical brighteners in the dyestuff or optical brightener single- or multi-component system employed, this system is considered on the basis of the empirical values in the immediate past using a model in order to determine the optimal control parameters which are used as discrete operating or control values for the self-adjusting direct digital control of the course of the process. Using this process, the course of the process when dyeing using dyestuffs or brighteners which in solution do not obey Lambert-Beer's law can be optimally conducted.
Patent GB-554811-A (GB)
Title: Improvements in or relating to reversible lifeboats or rafts
IPC: B63C9/02
Filed: 1942-08-12
Abstract: 554,811. Reversible lifeboats; propeller shafts, arrangements of. GASKIN, H. A. Aug. 12, 1942, No. 11295. [Classes 113 (ii) and 114] In a reversible lifeboat of the double deck type, water-tight compartments 21, 22 extending up to the top of the coaming 28 are provided at the stem and stern, and the ends of both decks 14, 15 are curved up to the tops of the compartments. The tops of the latter also curve upwardly to the ends of the stem and stern posts. A propeller 50 driven by an an engine 37 located in the space between the decks is carried on a Cardan shafts 41 the inclination of which may be altered by a screwed rod 44 operated by hand-wheels 49 in accordance with which deck lies uppermost. The boat also includes internal buoyancy tanks, valve-controlled air-escape and water drainage tubes 27, and an external belt of buoyancy tanks. Specifications 107,779, 193,983 and 298,930, [all in Class 113 (ii)], are referred to.
Patent GB-1388786-A (GB)
Title: Integral solid gel-lattice dosage form of high-moisture content
IPC: A23L29/20
Filed: 1973-03-08
Abstract: 1388786 Gel dosage unit R P SCHERER CORP 8 March 1973 [3 April 1972] 11308/73 Heading A5B Pharmaceutical dosage units consist of (a) a stable, inert, rigid, macromolecular gel-lattice which has been prepared by solidifying a melt and (b) within the interstices of the lattice a composition comprising (i) a pharmaceutically active compound and (ii) 4-20% of water based on the total weight of the dosage unit. The gel lattice may be gelatin, casein, collagen, albumin, soya protein, pecin, agar, acacia, karays, tragacanth, Irish moss, algins, alginates, guar, Iceland moss, modified starch, methyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, sodium cellulose sulphate, polyvinylpyrrolidone, polyacrylic acid, copoly (ethylene/ maleic acid), polyvinyl alcohol. The pharmaceutically active compound may be: diphenhydramine hydrochloride (anti-histamine-somnifacient), phenolphthalein, (laxative), peppermintspearmint (breath freshner), ephedrine sulphate (decongestant), chloral hydrate (sedativesoporific), methorphan/cough remedy), isoproterenol hydrochloride (bronchodilator), dimenhydrinate (anti - nauseant), chlorpheniramine maleate (anti histamine).
Patent GB-1157560-A (GB)
Title: A Rectractable Motor Vehicle Headlight Arrangement.
IPC: B60Q1/05
Filed: 1968-03-08
Abstract: 1,157,560. Vehicle headlamps. DR. ING. h.c.F. PORSCHE K.G. 8 March, 1968 [10 March, 1967], No. 11384/68. Heading F4R. A vehicle headlamp arrangement includes at least one lamp 3 mounted in a frame 4 which is pivoted on a shaft 5 extending generally parallel to the driving direction and can be moved between a lighting position, in which the lamp projects from the vehicle body, and a retracted position in which the lamp is disposed within the body, the lamp being directed generally forwardly in both positions. A second lamp 2 may be mounted in the frame. The lamp 3 can be used for signalling when in the retracted position, the body having a plurality of slots 12 and a prism-profiled lens 13 for directing the light. The shaft 5 is driven by a motor 8 and the frame is locked in either position by solenoid-operated bolts 9, 10.
Patent GB-749260-A (GB)
Title: Drag-pick loader
IPC: B65G65/00
Filed: 1953-04-24
Abstract: 749,260. Drag-pick loaders. GEWERKSCHAFT EISENHUTTE WESTFALIA, and EGEN, H. April 24, 1953, No. 11415/53. Classes 78 (1) and 78 (4). In a drag-pick loader, the beam 18 carrying the pick 19 is carried by two pairs of links 20, 21, each link 20 being mounted on a shaft 22 whilst each link 21 is mounted on a pivot 23 on an arm 24 pivotally mounted on the shaft 22. The pick is operated by introducing pressure fluid into cylinders 27, 29, the piston-rod of a cylinder 27 being connected to an arm 25 rigid with a link 20 and the piston-rod of a cylinder 29 being connected to an extension 31 of an arm 24.
Patent GB-1173076-A (GB)
Title: A process for Generating Gas for Halogenising Chromium and the Generator of such Gas
IPC: C01G37/04
Filed: 1967-03-10
Abstract: 1,173,076. Chromizing iron. SOC. ANON. HEURCHROME. March 10, 1967 [March 28, 1966],  No. 11426 / 67. Heading C7F. [Also in Division C1] Ferrous metal work (2) is placed in a retort (60) which is sealed from the atmosphere and heated to a temperature of 1650-2000‹F. for bromide and 1750‹-2000‹F. for chloride and passing into said retort chromous bromide or chloride in argon and/or return in a concentration which is insufficient to deposit halide on the walls of the retort, circulating the gases in the retort in contact with the work and drawing of the gas which contains a mixture of ferrous and chromous halide in the ratio of 1:1 to 1:3 by volume in order to maintain a superficial chromium content of at least 24% wt, the specific ratio being determined by the chromizing temperature. The gas mixture passed is of relatively constant composition and passed at a rate inversely proportional to the square root of the then elapsed time of chromizing. The metal work is preferably in the form of an open coil.
Patent GB-396347-A (GB)
Title: Undercarriage for flying machines
IPC: B64C25/00
Filed: 1933-04-19
Abstract: 396,347. Aircraft landing - gear. MESSERSCHMITT, W., 24, Gentnerstrasse, Augsburg, Germany. April 19, 1933, No. 11428. Convention date, April 19, 1932. [Class 4.] A landing-wheel for an aircraft is supported by a single spring strut on which the wheel is mounted by a stub axle, rotation of the strut being prevented. The fixed part c of the strut forms a structural member of the fuselage to which the thrust is communicated at an upper corner a, the torsional stresses being taken by bolts d at the lower part of the fuselage. The part c has an extension h forming a guide for a movable part e having a plunger f moving against compressed air. A keyway i prevents relative rotation of the parts e, c, h. A fairing surrounds the external parts and slides over the part h. As many struts are used as required and tandem arrangements of the struts or of wheels on each strut may be employed.