baber/WOPTO huggingface dataset:
Patent GB-868135-A (GB)
Title: Improvements in or relating to friction calenders
Inventor: HARZENDORF GERHARD
IPC: D06C15/02
Filed: 1957-10-31
Abstract: 868,135. Friction calenders. ERSTE MASCHINENFABRIK KARL - MARX - STADT VEB. Oct. 31, 1957, No. 34075/57. Class 42 (1).  In a friction calender comprising one hard friction roller and one resilient roller, the friction roller drives the resilient roller and the necessary difference in the speeds of rotation of the two rollers is obtained by subjecting the resilient roller to the braking action of a self-locking gear. As shown in the drawing, the driven friction roller 1 drives the resilient roller 2, the shaft 3 of the latter carrying a spur gear 4 which meshes with a similar gear 5 mounted on a shaft 6. Also mounted on a shaft 6 is a worm-wheel 7 rotated by a worm 8 which is driven from a motor 11 through a variable gear 10. Since the worm 8 can only drive the wormwheel 7 and not vice versa, the roller 2 can only rotate at the speed at which the worm-wheel 7 is driven from the motor 11 via the worm 8.
Patent GB-373107-A (GB)
Title: Improvements in printing machines
IPC: G03B27/08
Filed: 1930-11-13
Abstract: 373,107. Photographic continuous printing apparatus. BIZOT, M. G. M. G., 6, Chemin de la Croix, Champigny-sur- Marne, Seine, France. Nov. 13, 1930, No. 34156. Convention date, Nov. 14, 1929. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] Apparatus for continuously printing by contact one or more negative films, more especially on slow-printing material, comprises a transparent drum 1 which bears peripheral annular guideways 2 for the films and has an axial light source 7, such as a mercury vapour lamp supporting a system of slightly inclined parallel plates 10 held together by rods 11 ; endless opaque belts each passing round a guideway on the drum and round rollers 18 .. 22, the roller 20 being spring-controlled to take up slack in the belt ; and series of pairs of delivery spools 12, 13 and take-up spools 14, 15 in staggered formation for the various negatives and sensitive films which are to be fed round the drum under the belts. The drum is driven by pulley-gearing from a motor, or is rotated by the action of unwinding the films, and the take-up spools 14, 15 are geared by belt or chain to a pulley-driven shaft carrying rollers 19 driving the endless belts.
Patent GB-981820-A (GB)
Title: Metal sheet production
Inventor: SVIADOSHCH JURY NICKOLAEVICH
IPC: C25D1/20
Filed: 1962-09-06
Abstract: <PICT:0981820/C6-C7/1> Sheet metal, e.g. zinc, deposited electrolytically is detached from the cathode by suction means after hammering to loosen it. The plated cathodes are carried by fingers on a conveyer 13 and held vertically while horizontally reciprocating hammers (not shown) perforate and loosen the plate on the upper area. The cathodes are then carried into a further stage and held vertically between seven pairs of suckers 30 mounted on each side of two frames which are moved forward by hydraulic or pneumatic rams 45. Each sucker consists of a rigid pipe surrounded by an acid-resisting plastic sleeve having a reinforcing ring at its contact "mouth".  A vacuum of 500-600 mm. Hg. provides a force of 30-35 Kg. per sucker. The plates are readily released and fall to a conveyer 58.
Patent GB-1449412-A (GB)
Title: Methods of recording digital data
IPC: G11B5/09
Filed: 1974-08-02
Abstract: 1449412 Recording data INTERNATIONAL BUSINESS MACHINES CORP 2 Aug 1974 [1 Oct 1973] 34273/74 Heading G4C In a method of recording binary data on a two level magnetic record in successive bit cells, one bit being recorded in each cell, one of the binary values is represented by an odd number of transitions from one level to the other in a bit cell and the other by an even number (greater than two) of transitions, the total time durations of each level in each cell being the same. In each of three embodiments A, B, C, (Fig. 1,) the binary "1" is represented by one transition 10 at the mid point of the cell. In the embodiment A a binary 0 is represented by transitions after , ¢ and ¥ of a bit cell period and at the lagging cell boundary. In embodiment B the transition at the lagging cell boundary is replaced by one at the leading cell boundary. In the preferred embodiment C transitions occur at <SP>1</SP>/ 6 , #, # and # of a bit cell period. Apparatus (Fig. 4 not shown) for recording multi track data as in embodiment C includes an oscillator operating at four times the data frequency and for each track a gate (63) through which, at the centre of each cell, "1" bits are clocked. A further gate (68) passes the inverted "O" bits at #, #, # and # bit cell periods, the oscillator output being divided in a counter by 2) and delayed to provide the gating pulses. The gates are connected via an OR gate (64' and an amplifier (56) to a write head (53). Data may be read using the circuitry of Figs. 6, 6A (not shown).
Patent GB-467269-A (GB)
Title: Improvements in or relating to drawing boards for the use of draughtsmen, artists or the like
IPC: A47B41/04
Filed: 1936-01-04
Abstract: 467,269. Supports for drawing- boards. SAUNDERSON, E. J. Jan. 4, 1936, No. 34381/35. [Class 52 (iii)] An adjustable support for a drawing-board 17 allowing of rotary and linear movement of the board in its own plane comprises a base 2 on which is slidable a block 10 carrying a pivot 12 for the board, the pivot axis being at right angles to the plane of the board. The base 2 is pivoted at 3 to support 1 which may rest upon a table or form part of a desk top, and is held at an adjustable inclination by a strut 4 engaging teeth 6 in the support 1. The slide 10 has a screw 19 passing through a slotted plate 8 and is secured by a nut 20. A circular attachment plate 11 is rotatably mounted on the slide 10 by a screw 12 which also passes through the slotted plate 8 and is tightened by a nut 13, and the drawing board 17 is secured to the plate 11 by screws 18.
Patent GB-1240709-A (GB)
Title: Curable compositions containing an epoxide resin and a copolymer of an olefine hydrocarbon with an olefine ester
Inventor: BALL ALAN
IPC: C08L21/00
Filed: 1968-07-18
Abstract: 1,240,709. Laminates. CIBA (A.R.L.) Ltd. 1 July, 1969 [18 July, 1968], No. 34397/68. Heading B5N. [Also in Division C3] Aluminium honeycomb sandwich structures for use in aircraft production use as an adhesive curable compositions comprising: (I) at least one epoxy resin, (II) dispersed in particulate form in (I) a copolymer of an α-olefin hydrocarbon with an α-olefin which is an ester of a carboxylic acid, and (III) a curing agent for (I). (I) may be a polyglycidyl ether of a polyhydric phenol, (II) may contain 55-85% by wt. of the α-olefin hydrocarbon, e.g. ethylene. Examples are copolymers of ethylene with alkyl acrylates or methacrylates or of ethylene with a vinyl alkanoate, e.g. vinyl acetate. The compositions may contain 2-45 parts by wt. of (II) per 100 parts by wt. of (I). A preferred (III) is dicyandiamide. The compositions may additionally contain a thermoplastic high M.W. (at least 10,000) polyarylene polyhydroxy polyether (phenoxy resin) or a linear polysulphone. From 10-80 parts by wt. of phenoxy resin or polysulphone may be present per 100 parts by wt. of (I). A typical exemplified adhesive comprises 100 parts by wt. of a diglycidyl ether of bisphenol A, 25 parts by wt. of an ethylene vinyl acetate (60/40) copolymer, 8 parts of dicyandiamide, 0À5 part of imidazole and 60 parts of a phenoxy resin. Aluminium honeycomb structures prepared using this adhesive were tested by the " Climbing drum peel test " (U.S. MIL-A-25463-ASG).
Patent GB-410039-A (GB)
Title: Improvements in electrical time signalling systems
IPC: G04C13/04
Filed: 1933-07-08
Abstract: 410,039. Time-alarm signals. CITTERIO, S., 30, Via Vigone, Turin, Italy. July 8, 1933, No. - 34475. Convention date, July 9, 1932. Divided on 408,483. Drawings to Specification. [Class 118 (ii).] In a time-alarm system wherein a master clock transmits impulses to operate secondary clocks and each secondary clock has means for giving an alarm at a predetermined time, the master clock has an auxiliary impulse transmitting contact which may be brought into circuit when it is desired to set the master clock. The auxiliary contact is adapted to transmit impulses which are longer than the normal impulses in order that more certain operation of the secondary clocks may be obtained during a setting movement of the master clock. The system described is identical with that described in Specification 408,483.
Patent GB-862987-A (GB)
Title: Improvements in electrical primers
IPC: F42C19/12
Filed: 1958-10-28
Abstract: 862,987. Ammunition primers. BREVETS AERO-MECANIQUES S. A. Oct. 28, 1958 [Oct. 29, 1957], No. 34514/58. Class 9(1). An electric primer for explosive or propellent charges comprises two metal electrodes 2, 3 connected to a condenser 1, an element 4 of semi-conductive material being placed between the electrodes adjacent priming 5, so that on closing a key in the condenser circuit a spark is produced in the element 4 which ignites the charge 5. The semi-conductive material is a solid of crystalline structure which is non-conducting near 0‹K but at higher temperatures has an electronic conductivity or acquires such conductivity when its structure is disturbed or can be made conductive by external influences. The element 4 may be a metalloid or an anhydride of a metalloid having a relatively low melting point and a boiling point such that it evaporates under vacuum. Examples given include selenium, germanium, vanadium pentoxide, silicon monoxide, cerium bioxide, cadmium sulphide, and uranium bioxide. The element 4 is preferably in the form of a thin layer, e.g. one micron thick, deposited on an insulator 6 of synthetic resin or ceramic material inserted in electrode 3 and surrounding electrode 2. A conductive layer 7, which may be a metal such as indium, covers the layer 4 and contacts the electrode 3 along its periphery. A conductive ring 8 is forced into the sleeve 3 against the layer 7 and houses the priming 5. Instead of the layer 7, a thin conducting wire may extend radially over film 4 from the electrode 2 to the electrode 3.
Patent GB-451344-A (GB)
Title: Improvements in or relating to buoys and the like
IPC: B63B22/16
Filed: 1934-12-01
Abstract: 451,344. Batteries. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Winckler Engineering Laboratories, Inc. ; 791, Tremont Street, Boston, U.S.A.) Dec. 1, 1934, No. 34601. [Class 53] [See also Groups XXXVIII and XI] An electrically illuminated buoy is provided with a battery energized by the sea water. As shown in Fig. 3 the battery comprises a zinc electrode 20 enclosing a carbon electrode 21 surrounded by manganese dioxide or copper oxide mixed with carbon and enclosed in a sack. The lamp holder consists as shown in Fig. 5 of a wire in contact with the electrode 20 and formed with convolutions 32. The battery is supported in the tubular portion 13 of the buoy. Figs. 10 and 12 show a modification in which the zinc electrode 20 is carried by a pole 38 supported by the float 10. The carbon electrode 21 and depolarizer 31 enclosed in a sack 30 are also carried by the pole 38 below the float. The electrodes are connected by wires 39 to the lamp 33.
Patent GB-1469844-A (GB)
Title: Graphic recorder
IPC: G01D9/38
Filed: 1974-08-06
Abstract: 1469844 Recording apparatus BENSON SA 6 Aug 1974 34623/74 Heading G1J Graphic recording apparatus in which a strip of flexible record material e.g. paper is moved longitudinally over a rotatable drum 1, driven in accordance with one digital input, and beneath a transversely movable recording head (not shown), driven in accordance with another digital input, the strip being taken up and played out by rollers 2, has three suction chambers 3, 4, 5 to which suction is applied from source 6 to establish sags c between the drum 1 and rolls 7, so that the strip is wrapped around the drum 1, and to establish buffer loops as shown in chambers 3, 4 between the drum 1 and the rollers 2, each side chamber 3, 4 having means such as negative pressure sensors 13 for sensing variations in the length of the loops and for controlling rotation of the rollers 2 to maintain the lengths of the loops. Negative pressure in chambers 3, 4 may be reduced as compared with that in central chamber 5 by providing dampers, valves or orifices 12.
Patent GB-1324093-A (GB)
Title: Automatic apparatus permitting highly dilute solutions to be obtained
IPC: G01N1/38
Filed: 1970-07-17
Abstract: 1324093 Automatic preparation of dilute solutions D DEMARQUE and F LAMASSON 17 July 1970 [18 July 1969] 34794/70 Heading B1X Apparatus used for attaining highly diluted samples by the Korsakow method, i.e. by the dilution of the droplets remaining in a bottle after it has been emptied, comprises a closed transparent chamber 2 housing a bottle support 10, attached by a pivotable shaft 9 to a body 8 which is keyed in a rotatable and vertically reciprocable shaft 3. After having its contents manually emptied the bottle 23 is introduced into the chamber and placed on the support 10 by a gripper 31 and then rotated by shaft 3 below syringe 30 which adds diluent. Further rotation brings the bottle, which has a spring biassed internal support structure, (see Fig. 2 not shown) beneath closure 34. The shaft 3 is then raised so that the bottle engages the closure 34 whereupon reciprocation of rod 33 effects mixing of the bottle contents. Further rotation of shaft 3 results in abutment of finger 14 and stop 24 which causes the bottle to be tilted back by pivot shaft 9 through 90‹ whereupon its contents empty into a trough 39 and thence into one or more containers, e.g. 51b. Later engagement of finger 15 and stop 25 completely inverts the bottle whereafter stops 26, 27 act to bring it to its original upright position. The sequence of operations is controlled by a programming unit 44-49. The chamber 2 may have a controlled atmosphere. In alternative embodiments the fingers 14-17 may be replaced by a star-shaped attachment, Fig. 4, (not shown); or the stops 24-27 may be replaced by a smooth ramp to prevent violent arrest of the bottle; or the support 10 may be provided with a pinion (52), Fig. 5 (not shown) to engage upper and lower curvelinear toothed racks so that the pivoting of the bottle occurs in forward and reverse directions.
Patent GB-874925-A (GB)
Title: Emergency bin unloading device
Inventor: POTTMEYER EDWARD WILLIAM
IPC: B65G3/00
Filed: 1959-10-14
Abstract: 874,925. Storage hoppers. BLAW-KNOX CO. Oct. 14, 1959, No. 34805/59. Classes 78 (1) and 78 (4). Material is fed by bucket 86 operated by power cylinder 70 and is discharged therefrom into hopper 10, whence it is delivered by vibrating pan 21 into discharge shoot 16. Bucket 86 is carried by arms 84 secured to sheaves 71, 72 carried by wheeled yoke 66 and stationary cables 73, 78 pass respectively round the sheaves and are secured to fixed points at their ends, so that, as the bucket 86 is raised by the cylinder, the sheaves 71, 72, and therefore the arms 84, are rotated to deposit the material rearwards into hopper 10. Additionally, a locking pin 42 is floatingly carried by chain 87 secured to wheeled yoke 66 so that it reciprocates as the bucket reciprocates. However, if the vibrating pan ceases to work, the locking pin is secured by the operator as shown to the bottom of the hopper 10 and the hopper 10 is then caused to pivot about point 26 by operation of cylinder 70 to discharge the material into shoot 16.
Patent GB-418878-A (GB)
Title: Braking device for kinematographic targets
IPC: F41J9/14
Filed: 1933-12-11
Abstract: 418,878. Kinematograph apparatus. ROEDER, G., 56p, Laubacherstrasse, Wilmersdorf, Berlin. Dec. 11, 1933, No. 34872. Convention date, Dec. 12, 1932. [Class 97 (i).] A brake for the projector in kinematograph target apparatus is held in its " off " position by an electromagnet and is put into a " ready " position by interruption of the magnet circuit; from the " ready " position it is applied automatically at such time that a picture is being projected. As shown, a brake block c is carried by a pivoted link d, and is connected by a link e to a rod f, movable vertically, and normally held raised by an electromagnet l. Breakage of the circuit of the magnet l by the impact of a bullet on a target disc permits a spring h to pull down the rod f until a lever o, carrying a pivoted pawl m in engagement with a nose n on the rod f, engages a stop q, the block c being thereby brought close to the brake drum b. Application of the block to the drum by the spring h occurs when the pawl m is moved from the nose n by a cam s on a disc r attached to the drum. The rod f may be raised to move the brake to the " off " position by means of a handle i or by an electromagnet, and the circuit of the magnet l may be simultaneously completed. The magnet l may be only just strong enough to hold the brake in the " off " position and may have a second winding enabling it to move the brake to the " off " position.
Patent GB-958866-A (GB)
Title: Production of ethylene sulphide
IPC: C07D331/02
Filed: 1962-09-13
Abstract: Ethylene sulphide is produced by heating, under anhydrous conditions, potassium thiocyanate with an excess of ethylene carbonate. Preferably the temperature is from 95 DEG  to 125 DEG C. and a molar excess of 10% to 20% of ethylene carbonate is used. An excess may be maintained in the reaction mixture by adding the potassium thiocyanate progressively at a uniform rate.
Patent GB-394245-A (GB)
Title: Improvements in or relating to pistons
IPC: F02F3/02
Filed: 1932-12-09
Abstract: 394,245. Pistons. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Aluminium, Ltd. ; Canada Life Building, Toronto, Canada.) Dec. 9, 1932, No. 34970. [Class 122 (i).] The piston skirt is separated from the head by a slot 13 and its minimum thrust face is split axially at 18 and separated from the outer ends of the bosses by slots 17. The bosses are connected to the head by webs 8 and to the minimum thrust face by flexible webs 19.
Patent GB-872261-A (GB)
Title: New antibiotic rufochromomycine and process for its preparation
Filed: 1959-10-15
Abstract: <FORM:0872261/IV (b)/1> A new antibiotic designated Rufochromomycine is produced by cultivating Streptomyces rufochromogenus or a mutant thereof under aerobic conditions in an aqueous nutrient medium containing assimilable sources of carbon, nitrogen and mineral salts. Specified sources of carbon are carbohydrates e.g. glucose, sucrose, lactose, dextrins, starch or molasses, sugar alcohols e.g. glycerol or mannitol, organic acids e.g. citric, lactic or tartaric acid or animal and vegetable oils e.g. lard or soya bean oil.  Specified sources of nitrogen are nitrates, inorganic and organic ammonium salts, urea or amino acids or substances containing proteinaceous nitrogen e.g. casein, lactalbumin, gluten and their hydrosylates, soyabean, peanut or fishmeals, meat and yeast extracts, distiller's solubles or corn steep liquor.  Specified mineral salts are alkali and alkaline earth metal phosphates, calcium or magnesium carbonate, alkali and alkaline earth metal chlorides and sulphates or salts of zinc, copper, cobalt, iron or manganese.  Submerged aerobic cultivation at 23 to 35 DEG C. for 3 to 5 days, the pH of the broth being initially 6.0 to 7.5 is preferred.  The antibiotic is isolated from the fermentation broth by filtering at a pH between 6 and 9 whereby the antibiotic is found in the clarified broth or by filtration at a pH between 1 and 4 whereby the antibiotic remains in the mycelium from whence it is extracted by a solvent e.g. an aliphatic alcohol such as ethanol, a ketone such as acetone or an ester such as ethyl acetate.  The antibiotic is also extracted from the mycelium with water alkaline to a pH between 6 and 9. The crude product is obtained from the aqueous alkaline solutions (a) by precipitation with acid e.g. hydrochloric acid or (b) by acidifying to a pH between 1 and 4, extraction with a solvent immiscible with water e.g. an alcohol such as butyl or amyl alcohol, a ketone such as methyl isobutyl ketone, an ester such as ethylacetate, a chlorinated solvent e.g. chloroform, an aromatic hydrocarbon e.g. benzene, or an ether e.g. diethylether and then (1) concentrating and drying or (2) concentrating and precipitating by a non-solvent e.g. petroleum ether or cyclohexane.  Further purification may be obtained by chromatography on an alumina column.  The antibiotic Rufochromomycine has anticancerous activity and is active against gram positive and gram negative organisms especially strains of staphylococci.  It is an acid, forming basic salts with metals such as sodium, potassium and calcium.  It is red brown in colour and has a melting point of 301-303 DEG C.; elementary analysis:-c = 59.2-59.6%, H = 4.8-5.2%, O = 25.0-25.2%, N = 10.8-11.1%, OCH3 = 17.7%, pKa = 6.9; U.V. absorption maxima at 382 mm  - E11cm% = 332 and 247 mm  - E11cm% = 750 and a minimum at 332 mm  - E11cm% = 133; an I.R. spectrum as shown in the accompanying drawing.  RF values are shown in a Table.
Patent GB-1472163-A (GB)
Title: Free-fall grab for pickung up ground samples from the sea bed
IPC: E21B49/02
Filed: 1975-08-22
Abstract: 1472163 Submersible grabs PREUSSAG AG 22 Aug 1975 [16 Sept 1974] 35019/75 Heading E1F A free fall grabbing apparatus for picking up ground samples from a sea bed comprises a scissor-type grab 10, weights 32 which fall clear of the grab when it is closed, a buoyancy member 2, 3, 4, and a bar 9, which is coupled as at 21 to the buoyancy member. The bar 9 directly couples, by the frictionally engagement between end surfaces 22, 23, 24, 25 of the bar and the grab, the weights-carrying grab to the buoyancy chamber during free fall descent of the apparatus. The bar 9 also indirectly couples the grab through means, e.g. cable bridle 19, 20, to the buoyancy member during ascent of the apparatus after the grab has been further opened on its engaging the sea bed so that the end surfaces 22, 23, 24, 25 become disengaged and the weights 32 can drop clear of the grab as the arms of the grab disengage from slots in the weights when the arms are swung upwards towards each other as the bridle 19, 20 is tensioned by the freed buoyancy chamber to close the grab.
Patent GB-1481724-A (GB)
Title: Field effect transistors
IPC: H03G1/00
Filed: 1974-08-08
Abstract: 1481724 Field-effect transistors SONY CORP 8 Aug 1974 [11 Aug 1973] 35035/74 Heading H1K In an IGFET for use as an attenuator comprising elongate parallel source and drain regions formed in the surface of a substrate of opposite conductivity type, the drain region has a greater resistance between its ends than the source and is provided with input and output electrodes at its respective ends, and the gate consists of resistive material, e.g. polycrystalline silicon. In one embodiment the gate also has electrodes at its ends between which a voltage gradient can be maintained to provide a substantially linear attentuation characteristic. In the embodiment shown in plan in Fig. 9 the gate has less resistive regions over the facing edges of the source and drain regions and carries an elongate electrode Q s  on the source side, and further electrodes G 1D(1-4)  spaced along the drain side and each associated with and connected via a capacitance to an adjacent electrode on the drain region. In operation the control voltage is applied to electrode G s  and voltages applied to the remaining gates which differ from this by the voltage on the associated drain electrodes.
Patent GB-921500-A (GB)
Title: Improvements in and relating to water heaters
Inventor: HENTSCH RAYMOND ALFRED
IPC: F24H9/20
Filed: 1958-07-02
Abstract: 921,500. Pipe couplings. UNITED GAS INDUSTRIES Ltd. July 2, 1959 [July 2, 1958], No. 35075/60. Divided out of 912,498. Drawings to Specification. Class 99(1). In a water heater heated by gas, oil or electricity, the fluid conduit joints, i.e. where valves or governors are interposed, are formed by couplings having spigot and socket elements incorporating at least one 0-ring seal and releasable retaining means as described in the original Specification. Specification 921,499 also is referred to.