baber/WOPTO huggingface dataset:
Patent GB-613873-A (GB)
Title: Cutting machine
IPC: B23D47/04
Filed: 1946-04-03
Abstract: 613,873. Sawing. RAMSEY, A. R. J. (Bowdil Co.). April 3, 1946, No. 10305. [Class 145 (ii)] A machine for cutting stock into short lengths is so arranged that when the circular saw becomes blunted so causing an overload to be imposed on the electric driving motor the saw is fed into the stock intermittently and at the completion of that cut the machine is automatically stopped. The saw 24 for cutting the stock 23 is carried by a pendulum frame 25, which can oscillate about a motor-driven shaft 27. The shaft 27, by suitable gearing 43-50, drives one plate 60 of a spring-loaded clutch 37, the other plate being connected to a cam 52, rotation of which causes the frame to feed the saw through the stock. In the event of the clutch having to transmit an excessive torque due to blunting of the tool, the clutch is temporarily disconnected as the balls 62 are forced out of sockets 63 in the plates and move around the plates until they enter the next socket, when the drive to the cam is again resumed. On leaving the sockets the balls move the plate 61 axially and trip-the latch 73, so releasing the spring-loaded rod 72, which then abuts against a plate 80. At the end of the severing operation the rod 72 clears the plate 80 and trips the switch 39, so stopping the machine. A piston 92 moved by the plate 80 controls a fluid-operated stock injection device comprising clamping means 87 for holding the stock during the severing and clamping means 86 for advancing the stock after severing. This clamping means 86 consists of a guide bed 95 on which slides a block 97, carrying laterally movable jaws for gripping the stock. These jaws are moved to grip the stock by rollers 99 carried on the cross arm 107 of a T-shaped arm that is oscillated to-and-fro by the hydraulic motor 104. After severing and before the clamp 87 is released, the motor 104 causes the jaws of the clamp 86 to grip the stock and urge it forward so that on the release of the clamp 87 the stock is advanced by an amount limited by a stop 119. The stock is then gripped by the clamp 87 and during the next severing operation the arm 100 is withdrawn by the motor 104 and the block urged back by a hydraulic motor, the laterally movable jaws 98 thus being held in contact with the stock, ready for the next feed motion.
Patent GB-125827-A (GB)
Title: Improvements in Streamline Fairing for Aircraft.
Inventor: PERKS EUSTACE WALTER
IPC: B64C3/18
Filed: 1918-06-22
Abstract: 125,827. Perks, E. W. June 22, 1918. Framework.-A streamline fairing for aircraft members comprises strips of wood a secured to curved distance-pieces c and shaped at a<1>, c<1> to fit the frame member. A notch c<2> may also be formed in the distance-pieces to engage projections on the frame member to prevent. rotation. A strip of fabric d may be secured over the meeting edges of the strips a.
Patent GB-218040-A (GB)
Title: An improvement in or relating to sluice and like valves
IPC: F16K3/316
Filed: 1923-04-17
Abstract: 218,040. Blakeborough, R. A., Broadhead, J. B., and Wood, T. April 17, 1923. Closure members, sluice, wedge, and like sliding.-A vertically movable sluice valve is provided with a series of rollers arranged between the valve member and the casing, and mounted on a frame which is freely movable vertically between the valve member and casing, while a yielding facing ring is provided on the valve member or seating. The valve member a has a lateral extension a<1> parallel to the vertical guides d. and between the two are arranged frames e carrying rollers f. The upper end of each frame carries a pulley g around which passes a flexible connection h, attached to a bracket i on the valve member, and to the bolt j. The rollersare in contact with the extensions a<1> and guides d, and the frame moves at half the speed of the valve. The facing ring m of the valve may be pressed into contact with the seating by the pressure of the gas or liquid and/or a spring, or the facing ring may be fixed and the valve seating yielding. The face of the valve member may be parallel to its direction of movement, or it may be inclined.
Patent GB-593095-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B43/00
Filed: 1945-04-26
Abstract: 593,095. Refrigerating. AKTIEBOLAGET ELEKTROLUX. April 26, 1945, No. 10499. Convention date, May 9, 1944. [Class 29] Absorption systems.-In continuous cycle systems wherein refrigerant condensate is collected and vaporised in a vessel 14 for rectification of boiler vapours in a pipe 12, the vessel is heated asymmetrically along an extended vertical zone as by welding to the vapour pipe in order to produce a flow of condensate in the vessel. Condensate is supplied to the vessel from the condenser pipe 11 and vapours pass into the pipe 15. The vessel 14 comprises a pipe closed at its ends, and welded to the vapour pipe 12. In a modification a vertical partition extends through the vessel and has an aperture at the bottom.
Patent GB-417607-A (GB)
Title: Improvements in brakes for cycles, motor cycles and the like
IPC: B62L1/16
Filed: 1933-04-08
Abstract: 417,607. Cycle brakes. CEANDESS, Ltd., STEVENS, T. A., Merridale Street, Wolverhampton, and BAEDEKER'S, Ltd., 109, Northwood Street, Birmingham. April 8, 1933, No. 10525. [Class 136 (i).] In a cable-operated calliper brake for cycles, of the type having opposed pairs of toggle links connecting the upper ends of the calliper levers, the upper ends of the upper toggle links are pivoted concentrically, and the lower ends of the lower toggle links are also pivoted concentrically. The brake levers a are pivoted at c to clips d on the cycle fork, and their upper ends are connected by two opposed pairs of toggle links e, f, the links e being duplicated, as shown in Fig. 3, and their upper ends spaced apart and connected by a rectangular plate h, which is apertured to receive the usual threaded terminal sleeved m (with adjusting-nut n) of the cable casing l. The cable p passes through the sleeve m and is detachably secured by a nipple and keyhole slot to a lug r pivotally mounted on the pivot rivet k of the links f. In operation, the downward pressure of the casing l and the tension of the cable p co-operate to spread the toggle links e, f against a spring s to apply the brake blocks. The lower parts of the levers a may be curved or cranked forwardly (Fig. 3) from the plane of their upper ends to allow the brake to be fitted to the rear wheel of a small cycle without the levers fouling the seat pillar.
Patent GB-787387-A (GB)
Title: Process for the production of explosives having an increased storage resistance
IPC: C06B45/32
Filed: 1954-04-09
Abstract: 787,387. Sodium nitrate-containing explosives. DYNAMIT-AKT.-GES. VORM. A. NOBEL & CO. April 9, 1954 [April 13, 1953], No. 10574/54. Class 9(2) A non-caking explosive of increased storage resistance contains sodium nitrate, alone or with ammonium nitrate, as a salt component, and at least one liquid explosive nitric ester, as a highly explosive component, wherein the nitrate, or nitrates, is, or are, coated wholly or partially with up to 0.1 per cent by weight of at least one explosive surface-active substance, i.e. an aliphatic nitro-compound or nitramine, e.g. nitro-isobutylglycerine or trinitrophenyl methyl nitramine (tetryl). The surface-active substance may be mixed with the nitrate during crushing or grinding, applied from solution or emulsion, or by electrostatic means. In examples: (1) a composition is prepared containing nitroglycerine, trinitrotoluene, wood meal, and sodium nitrate, which is coated with tetryl, either by crushing the nitrate with tetryl, or by air stirring the nitrate with a solution of tetryl in benzene and evaporating the benzene (2) a compositino is prepared containing nitroglycerine gelatinized with nitrocellulose, di- and tri-nitrotoluenes, wood meal, and ammonium and sodium nitrates, which are both coated by crushing the nitrates separately with nitroisobutylglycerine; (3) a compositin is prepared containing a mixture of nitroglycerine and nitroglycol, argillaceous earth, ammonium chloride, wood meal, and sodium nitrate, which is coated by crushing the nitrate with tetryl.
Patent GB-1598940-A (GB)
Title: Method and apparatus for the grouping of green bricks into a setting formation
IPC: B28B11/16
Filed: 1978-03-17
Abstract: The green bricks (16) are produced from a strand portion (13), which is placed on a conveyor belt in the longitudinal direction of the harp cutter (5) and cut to length by a strand cutter (3), by means of a vertically lowerable cutting device once the conveyor belt has been stopped. After the return of the cutting device, the conveyor belt is set in motion once again and the individual green bricks (16) are pushed, via a transfer device (6), onto a spacing belt (7). This moves more rapidly than the conveyor belt, as a result of which the individual green bricks (16) are spaced apart. When the first green brick (16) reaches a sensor (17), the spacing belt (7) is stopped. A driver plate (18) pushes the green bricks (16) onto a plateau carriage (19) arranged in a transverse direction with respect to the spacing belt (7). As soon as the plateau carriage (19) is charged with a plurality of rows of green bricks, it is moved along a guide device (10) to the drying unit. The green bricks (16) which are already arranged at the correct, expedient mutual spacing are then shifted, by means of shifting grippers, to produce green-brick stacks and are fed to the drying and firing procedure. <IMAGE>
Patent GB-126524-A (GB)
Title: Improvements in Coin-operated Vending Machines.
Inventor: FLETCHER THOMAS MOORE
IPC: G07F5/02
Filed: 1918-06-27
Abstract: 126,524. Fletcher, T. M. June 27, 1918. Delivery of articles stored in piles; casings.- A coin-freed vending-machine of the kind described in Specification 786/15 is constructed with a curved coin shoot A and coin slot arranged parallel to the back of the casing of the machine. Coin action, weight.- The coin engages the end c of a pawl B having a detent c engaging a projection f on the drawer d. Withdrawal of the drawer beyond the position in which it engages the end h of the pawl frees the pawl and allows the coin to drop. Return motion of the drawer after delivery of an article restores the detent to position for engaging the part f. Coin-slit closing-devices.-A weight E rests on the pile of goods and is connected, to a lever F which is caused to release a spring-impelled slide j, and thus close the coin slot when the last article has been withdrawn. Fraud, preventing.-Leaf springs H are provided in the delivery outlet to prevent surreptitious withdrawal of goods therefrom.
Patent GB-628413-A (GB)
Title: Improvements in or relating to ethylene cyanohydrin and method of producing same
Filed: 1947-04-22
Abstract: Ethylene cyanohydrin is produced by bringing ethylene oxide together with hydrocyanic acid into contact with a heated aqueous suspension of magnesium oxide, magnesium hydroxide, or magnesium cyanide.  It is preferred to add the ethylene oxide and hydrocyanic acid in substantially equimolar proportions and to pass them into an agitated aqueous slurry of the catalyst maintained at 40 DEG  to 100 DEG  C., and preferably at 50 DEG  to 80 DEG  C., the mixture being held at the desired temperature for about one hour after the addition of the reactants in order to complete the reaction.  Carbon dioxide is then passed in until a pH of about seven is reached and the mixture then boiled so as to convert the magnesium bicarbonate into the insoluble carbonate which is filtered off after cooling the suspension. Ethylene cyanohydrin is obtained from the filtrate after removing the water by evaporation under reduced pressure.  In examples, a mixture of ethylene oxide and hydrocyanic acid is fed into a heated aqueous suspension of magnesium hydroxide in a vessel fitted with a condenser or into a similar heated suspension of magnesium hydroxide, or a heated aqueous suspension of magnesium oxide in a closed vessel, the ethylene cyanohydrin being separated as above. Specification 348,134 is referred to.
Patent GB-331906-A (GB)
Title: Improvements in coal carbonising retorts and the like
IPC: C10B1/04
Filed: 1929-04-08
Abstract: 331,906. Davidson, T. M. April 8, 1929. Retorts.-A retort is provided with a tapered hollow structure which extends into the fuel space so as to form a cavity therein through which the gases are withdrawn, and to provide means for arranging the charge in thin layers, the structure being adapted to be lowered for discharge of the coke. The retorts a are formed of superposed sections and each is heated by burners b' in combustion chambers b<1> leading to chambers b<2> which at the top communicate with retort chambers b<4>. The retort door d is supported on a hydraulic ram e<2> and has a telescopic gas outlet f passing through a coke chamber g to a hydraulic main f<2>. The door d supports the hollow structure which is formed by laths i mounted on vertical members h by cross members h<2>, the laths i alternating with laths i<1> secured to cross members h<3>. The laths i<1> are mounted on cross members j which engage with an operating head k on the end of a rod e' connected with the ram. On a slight movement of the head k the laths i<1> are moved relatively to the laths i so that the passage of gas between the laths is facilitated and carbonized residue is removed. The extent of relative movement of the laths is determined by contact of the cross members with abutments on the door, this movement taking place at the beginning and end of the stroke of the hydraulic ram. Specification 273,389 is referred to.
Patent GB-595249-A (GB)
Title: Improvements in or relating to chain drive assemblies
IPC: F16H7/06
Filed: 1944-06-05
Abstract: 595,249. Chain gearing. MORSE CHAIN CO. June 5, 1944, No. 10771. Convention date, May 19, 1943. [Class 80(i)] [Also in Group XXVII] Relates to chain gearing particularly for the driving of cam - shafts of internal-combustion engines. A cam shaft 22 carries a sprocket 32 adapted to be driven from a sprocket 64 on an engine driven shaft 24. The sprocket 32 is driven by a chain 34 from an idler sprocket 36 integral with a shaft 38 to which is secured another idler sprocket 40 having twice as many teeth as the sprockets 32, 36 and 64. A second chain 62 connects the sprocket 40 with the driving sprocket 64. The shaft 38 is journalled in a bell-crank lever 44 pivoted on a stub-shaft 28. The other end of this lever has a jaw 50 adapted to be engaged by a bolt 52 mounted in a sleeve 54 adjustable, by screwing, in a lug 56 of the cover 60. The Specification describes also a method of obtaining the location of the axis of the stub-shaft 28 which takes into account the relative lengths of the two chains, and the maximum adjustment for the wear that may be expected. With the above arrangement, the chain 34 may be readily removed and adjusted and the engine dismantled without removing the chain 62.
Patent GB-1172852-A (GB)
Title: Improvements in or relating to Light Modulation Devices
Inventor: ROBERTS DEREK HARRY
IPC: G02F1/21
Filed: 1966-03-11
Abstract: 1,172,852. Light modulators. PLESSEY CO. Ltd. 20 Feb., 1967 [11 March, 1966], No. 10796/66. Heading H4F. To modulate a beam of light an electric potential is applied across one layer of a multilayer interference filter to vary its refractive index. The interference filter may be of the Fabry Perot type, Fig. 1, which comprises a central layer 7 of high refractive index (barium titanate) and thickness # 0 /2, on either side of which are arranged alternate layers of low (3, 5, 9, 11 lithium fluoride) and high (2, 4, 10, 12 zinc sulphide) refractive index of thickness # 0 /4, # 0  being the peak wavelength of light to be transmitted by the filter. The filter is formed by vapour depositing successive layers on a glass substrate 1, transparent conductive films of gold being laid down on either side of central layer 7 to which leads 13 are connected. When a potential is applied across leads 13 the refractive index of the central layer varies and the intensity of the light transmitted i.e. light of wavelengths # 0  and 2# 0 , is decreased, Fig. 2 (not shown). Substrate 1 may be opaque, the light passing through the filter being reflected at the substrate surface.
Patent GB-439629-A (GB)
Title: Improvements in and relating to shirts
IPC: A41B1/00
Filed: 1934-04-10
Abstract: 439,629. Shirts. SHEPHERD'S SHIRTS, Ltd., and PACKETT, J. A., 169, Western Road, Brighton, Sussex. April 10, 1934, No. 10807. [Class 141] In a shirt, the material forming the front is carried over the shoulders and continued for a short distance down the back, and the divided ends are brought together at h to complete the neck opening, the material of the front being connected by sewing at g to the material forming the back of the garment, thereby obviating the necessity for a separate yoke piece.
Patent GB-797887-A (GB)
Title: Improvements in or relating to plasterers' metallic angle bead for walls
IPC: E04F13/06
Filed: 1954-04-13
Abstract: 797,887. Plastering. BLAKEY, J. B. April 12, 1955 [April 13, 1954], No. 10832/54. Class 20(4) A metallic angle bead for fixing at the corners of walls which are to be plastered having the section shown in Fig. 2 is provided along its length with two rows of triangular perforations 14 and 16 in each limb 12 allowing plaster to enter the rib 10 of the bead. Specification 333,671 [Class 20(iv)] is referred to.
Patent GB-628963-A (GB)
Title: Television systems
IPC: H04N5/228
Filed: 1946-04-09
Abstract: 628,963. Electron image tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 9, 1946, No. 10929. Convention date, Dec. 30, 1944. [Class 39 (i)] [Also in Groups XL (b) and XL (c)] The output from a television transmitting cathode-ray tube is modulated by a local carrier frequency to enable the principle of reflex amplification to be used. In one form, a carrier voltage is applied from oscillator 49, Fig. 1, to the grid 29 associated with the mosaic 24 of an image orthicon. The beam modulated with carrier and video frequencies is amplified by the multiplier 43 ... 48 and is then amplified by a conventional reflex amplifier comprising tubes 56, 81, 89. The first amplification at carrier frequency occurs through coupling transformers 53, 65, 86. The amplified signal is then rectified by diode 94 and is then fed back through condenser 102. A second amplification at video frequency occurs through resistance couplings such as 68, 108, 84, and the final video signal is taken from the cathode resistor 91. In another form the video-modulated beam, after amplification in multiplier 39 ... 48, Fig: 2, is mixed in tube 124 with a local carrier frequency and the modulated carrier is fed to control grid 34 of the image orthicon. The modulated beam is again amplified in the multiplier and the output is then rectified in diode 144.
Patent GB-559464-A (GB)
Title: Improvements in method of carroting fur and composition for use therein
IPC: D01C3/00
Filed: 1942-08-05
Abstract: 559,464. Carroting furs. NON MERCURIC CARROT CO. Aug. 5, 1942, No. 10931. Convention date, Dec. 27, 1941. [Class 76] Fur is carroted by bringing it into moving contact, e.g in a tumbling drum, with a mixture comprising a suitable carroting solution, a light powdery absorbent solid (referred to as a conveyer) and a heavy granular material (described as a penetrator). Suitable conveyers are sawdust, ground sponge and asbestos. Suitable penetrators are sand, powdered abrasives and non-carbonate stone. An adhesive, e.g. glue, gelatin or furfurol may be added to the mixture.
Patent GB-293508-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K23/42
Filed: 1927-04-25
Abstract: 293,508. MacFarlane, J. C., and Macfarlane, W. A. April 25, 1927. Pole-pieces. - Each pole of a constant current dynamo is divided into two parts, one part having a high magnetic reluctance and the other a low reluctance, and the parts are so proportioned that under short-circuit conditions, the cross flux due to armature reaction saturates the high reluctance part to such an extent that the total flux passing through the armature from pole to pole is reduced to an amount which is just sufficient to keep the short-circuit current circulating in the armature winding. The operation of the invention is explained in the Specification with reference to a diagram showing the magnetomotive forces produced by the field and armature windings. The trailing horn T of the pole is given a high reluctance by providing an apertune O as shown in Figs. 2 and 3 extending parallel to the axis of the armature; the gap between the inner pole-tips Tg, Lg may be open or may be closed by a thin bridge C of iron. In order to vary the characteristics of the machine, the air gaps under the leading and trailing horns may be of different lengths or may have different areas. The pole horns may be separate members bolted to the yoke. Fig. 6 shows the invention applied to a two-pole machine provided with a series winding D<1>, D<2> and a shunt winding S<1>, S<2>. Control may be effected by moving the brushes and the effect may be increased by providing series-wound interpoles I which in addition to improving the commutation can be made to add or subtract part of their flux to the main field. The interpoles also assist in stabilizing the machine by eliminating the currents in the coils shortcircuited by the brushes. The invention is particularly applicable to welding generators.
Patent GB-1010171-A (GB)
Title: Method of producing phosphates
IPC: C01B25/32
Filed: 1962-03-22
Abstract: Phosphates of alkali metals, alkaline earth metal and ammonia separately or mixed are produced with a volatile mineral acid by reacting crude phosphates with the salts (alkali metal, alkaline earth, or ammonia) of volatile mineral acids and a volatile inorganic acid in approximately stoichiometric proportions\sB10%. The solid reactants are ground to a size less than 0.2 mm., and are mixed with at least a portion of the scarcely volatile inorganic acid (which is preferably in excess) at normal or elevated temperatures, the mixture is then heated at temperatures of 200-600 DEG  C. to expel the volatile acid which is collected and the residue is extracted with solvents, inorganic and organic or mixtures thereof, to yield the phosphates the heating and extraction processes may be reversed in the process order.  The reaction mixture may be submitted to an ageing process after mixing the reactants by heating to temperatures below 200 DEG  C., followed by volatilization of the volatile acid at temperatures between 200-600 DEG  C.  Non-volatile acids specified are sulphuric and phosphoric acids used separately or as a mixture; volatile acids specified are hydrochloric or nitric acids, solvents used for extraction are, water, methanol, butanol and acid phosphoric esters.  Portions of the final product may be crushed and returned to the initial reaction mixture.  The heating may be carried out in an oxidizing or reducing atmosphere.
Patent GB-487359-A (GB)
Title: Improvements in or relating to fuel feeding devices for use in starting internal combustion engines
IPC: F02N99/00
Filed: 1937-04-19
Abstract: 487,359. Speed governors. INTERNATIONAL HARVESTER CO. April 19, 1937, No. 11102. Convention date, April 18, 1936. [Class 57] [Also in Group XXVII] An automatic throttle valve 59 in the mixture passage of a carburetter is mounted eccentrically on a shaft 60 extending into a housing compartment 61 and biassed by a spring 64. The valve tends to close on an increase of suction and the movements of an arm 65 on the shaft 60 are limited by a fixed and an adjustable stop.