baber/WOPTO huggingface dataset:
Patent GB-1069292-A (GB)
Title: Drawing apparatus
IPC: B21C1/00
Filed: 1964-06-22
Abstract: 1,069,292. Drawing wire. AEROPROJECTS Inc. June 22, 1964 [June 21, 1963], No. 25808/64. Heading B3P. In a method of wire-drawing vibratory energy is applied to the die in the direction of the longitudinal axis of the die orifice. The wire is first pulled through the die at low speed with low-level vibratory energy applied to the die and the drawing speed and the vibratory energy are increased until the desired drawing speed is reached. An apparatus for performing the method comprises a feed spool 14, lubricating means 18, 20, a die 24, means 11 for vibrating the die and a take-up spool 16. The means 11 comprises a magnetostrictive, eleotrostrictive or piezo-electric transducer 42 connected to a variable-frequency power source and an acoustic coupler 26 by which it is connected to the die. Details are given of the method of calculating the taper of the coupler 26 and of suitable materials from which it may be made. The coupler is supported in mounts 15 and 17 which are positioned and constructed to minimize frequency shift and loss of vibratory energy. Fig. 3 (not shown), illustrates an apparatus for multi-stage drawing and comprises a feed-spool (62) capstans (66 and 68), take-up spool (64) and three die assemblies. Each die assembly is mounted at one end of an acoustic coupler (84) and at the other end is a second acoustic coupler (90) to which are connected three transducers (108, 110 and 112). Examples are given showing the relationship between drawing speed and tension and the amount of applied vibratory energy in watts.
Patent GB-1135359-A (GB)
Title: Speed control system
IPC: G05D13/00
Filed: 1967-06-05
Abstract: 1,135,359. Automatic control of speed; fluidpressure servomotor systems. WOODWARD GOVERNOR CO. June 5, 1967 [July 15, 1966], No.25871/67. Headings G3P and G3R. In a system for controlling the speed of a prime mover by adjustment of its energy supply in response to a speed error voltage derived in an amplifier from the difference between actual and desired speed voltages, the gain of the amplifier is automatically temporarily reduced when the actual speed drops below the desired value, to improve the stability of the system. Preferably, the gain is not reduced immediately and circuit constants are adjusted so that maximum reduction coincides with the error reaching its maximum, and full gain is restored by the time that the speed has recovered. The speed is detected by an A. C. tachogenerator 29, its signal frequency being converted to a D. C. voltage by a transistor circuit 31 which produces pulses of standard height and width and integrates them. This voltage is compared with an adjustable one, obtained from a Zener diode circuit 33, in a transistor differential amplifier 35, which has a differentiating circuit (187, 189, Fig. 3, not shown) in a negative feedback loop to give an integrating characteristic which produces the required reduction in gain, preferably delayed by an integrating capacitor (191) across the portion of the output from which the feedback is taken (186). The error voltage is applied to the electro-hydraulic actuator shown, in which a fixed coil 51 surrounds a permanent magnet 53 attached to a pilot valve 55 normally centred by springs 66, 67 but pressed downwards due to the error signal in the coil 51 to admit fluid to the top and bottom of a piston 81, which is thereby forced upwards to open a throttle 16. Feedback is provided by a screw 96 on arm 93 exerting pressure on an additional spring 89. The operation is proportional and may be linear or non-linear to suit machine characteristics. The system operates with a slight "droop" characteristic so that some error signal is normally always present, going to zero (to shut the throttle) only when the speed exceeds the set value due to change of load or of set value.
Patent GB-538713-A (GB)
Title: Improvement in and relating to bakery products
IPC: A21D2/18
Filed: 1939-11-09
Abstract: 538,713. Baked food preparations. LLOYD, R. L., and AMERICAN MAIZE-PRODUCTS CO. Nov. 9, 1939, No. 25938. Addition to 538,084. [Class 49] Unleavened bakery products containing flour and a relatively large amount of shortening are made by a process wherein use is made of solidified, finely divided, substantially dried starch conversion syrup or cereal sugars, prepared by heating corn starch with water in the presence of an acid at super-atmospheric pressure; the dried syrup contains reducing sugars in amount from 15 per cent up to about 60 per cent, the remainder being principally dextrins, and it is preferably used in amount of at least 5 per cent of the weight of the flour. The dried solidified starch material is first uniformly blended with the flour and then the shortening is rubbed into the blend.
Patent GB-673787-A (GB)
Title: Emergency liquid-discharge control valve
IPC: F16K31/126
Filed: 1950-10-25
Abstract: 673,787. Fluid-pressure servomotor-control systems; valves. DE FREES, J. N. Oct. 25, 1950, No. 25970/50. Class 135. A discharge valve for use in storage tanks for inflammable liquids, etc. comprises a spring-closed valve member 19 with a resilient facing 20, and a flexible diaphragm 33 by which the valve is opened by air pressure under manual control admitted to a chamber 35. A bail 40 on a valve stem 25 enables the valve to be opened manually from within the tank. A fusible plug 43 vents the chamber 35 in the event of fire, whilst a notch 14b is formed in the casing of the valve so that if the valve is subjected to violent impact the lower part of the casing is broken off instead of the bottom of the tank being torn. The diaphragm is so shaped that when it is raised it leaves no pockets in which liquid may collect.
Patent GB-591111-A (GB)
Title: Improvements in and relating to liquid meters, particularly water meters
IPC: G01F3/08
Filed: 1944-12-28
Abstract: 591,111. Rotary meters. STEWART, H. T., SHAW, J., and CURTIS, V. G. T. Dec. 28, 1944, No. 26039. Convention date, Aug. 2. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 5, 1945.] [Class 110 (ii)] A gyratory-piston type. of liquid meter, such as described in Specification 587,224, has a thimble 5, fitting on a tapered spindle 4a, to take side thrust on a pin 6c which passes centrally through the piston web 6a. The inner circumference of the piston web 6 bears on a hub 4.
Patent GB-167698-A (GB)
Title: Improvements in, or relating to, drop hammers or stamps
IPC: B21J7/44
Filed: 1920-09-11
Abstract: 167,698. Green & Co. (Ecclesfield), Ltd., W., and Green, W. P. Sept. 11. 1920. Power hammers. - Means for pressing the belt against the pulley to raise the tup comprises a yoke 11, carrying a pressure-roller 13 at each end pivoted at 12 to a bracket 5 which is moved towards the pulley 4 by hand &c. gear. The pull-rod 21 is connected to one arm of a bell-crank lever 19, the other arm of which is connected by a rod 17 to a lever 14, pivoted at 15 and connected to the bracket 5 by a pin and slot at 16. A spring 22 pushes the bracket away from the pulley when the pull-rod 21 is released. The belt is released automatically when the tup is raised to any predetermined height. The tup raises a movable pin 26 against an arm 25 on a shaft 23 on which is mounted a second arm connected by a. rod 28 to the arm 19 of the bell-crank lever.
Patent GB-339281-A (GB)
Title: Method of and apparatus for singeing textile fabrics with gaseous or vapourous fuel
IPC: D06C9/00
Filed: 1929-08-28
Abstract: 339,281. Osthoff, W. Aug. 28, 1929. Singeing.-Fabrics are singed by means of a rich excess of oxygen supplied with the primary air or oxygen to a gas or vapour burner 1 so as to be heated to a high temperature in the flame 3, which is maintained by the incandescent walls of the lower part 6 of the combustion chamber, the combustion of the fibres to be singed being effected by the oxygen in the upper wider part 6a of the chamber over which the fabric 4 travels. The refractory bodies 5 are formed with projections 7 to provide a restricted passage between the two parts of the chamber. A cover 8 is provided for ensuring the continued burning of the flame 3 when the fabric is removed or is narrower than the chamber. In a modification, a flat cover is used and the walls of the lower part 6 of the chamber are vertical. Suitable dimensions of the burner slit 2 and combustion chamber are given.
Patent GB-532778-A (GB)
Title: Method of and apparatus for forming glassware
IPC: C03B9/193
Filed: 1939-09-19
Abstract: 532,778. Glass manufacture. JACKSON, L. MELLERSH- (Hartford-Empire Co.). Sept. 19, 1939, No. 26193. [Class 56] A method of making an article from a charge of glass delivered by a feeder consists in receiving the falling charge on an upwardly-moving press plunger in a pre-determined position in relation to a surrounding inverted parison mould, the movement of the charge thus being reversed. The charge is continuously in motion, and is kept from contact with surrounding walls, until it is pressed by the plunger to form a parison which has a uniformly chilled skin over substantially its entire area and blows out to form an article with walls of even thickness. The invention may be carried out by a machine of the kind described in Specification 257,637, [Class 56], in which a press mould or parison mould 56, Fig. 3, and a ring mould 44 are arranged above a cylindrical chargereceiver 43 within which a plunger 48 reciprocates. The plunger is cooled internally by fluid flowing through its stem 47, the fluid escaping into the receiver 43. Oil may be mixed with the fluid to form a heat-insulating or lubricating film on the inner wall of the receiver. Suction heads 61 are brought down on to the mould 56 at the proper time and enable air to be withdrawn from the mould through passages 63, 64. In operation, a charge of glass 73, Fig. 5, is delivered through the open mould to the receiver 43 and telescopes over the top of the plunger which may be moving upwards at the time. Air within the receiver provides a cushion around the plunger, and a film 74 between the glass and the receiver that prevents loss of heat from the glass to the receiver. Immediately the glass is moved upwards by the plunger and through the ring mould 44 into the cavity of the closing mould 56, as shown in Fig. 7, until it is pressed uniformly against the wall of the mould. During the pressing operation, air may be withdrawn from the mould through the suction heads 61. After a suitable period, the plunger is withdrawn from the parison 66, Fig. 9, and air may be supplied around the plunger to keep the parison pressed into contact with the mould. After the glass has been allowed time to reheat internally, the mould is opened and the parison is transferred to a finishing mould and blown to shape. The position at which the downward movement of the charge 73 is arrested may be varied ; in some cases the movement is stopped while the greater portion of the charge is within the cavity of the mould 56. If desired, air under pressure may be supplied to the receiver 43 to help the plunger in lifting the glass or even to impel the glass upwards in advance of the plunger. Also, the ring mould and the receiver may be made in one unit to invert the parison, and they may support and rotate the parison while it is being blown in a paste mould.
Patent GB-656676-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F28D3/02
Filed: 1948-10-08
Abstract: 656,676. Milk, wort and other film coolers. OLDHAM, J. Oct. 8, 1948, No. 26316. [Class 64(iii)] In a heat-exchanger in which liquid such as milk or ice-cream mix is heated or cooled by flowing under gravity successively over a plurality of conduits 9 arranged horizontally in a vertical plane for conveying heating or cooling fluid, from an inlet header 7 to an outlet header (not shown), the rate of fluid flow is varied from conduit to conduit. This variation is achieved by a graduation of the sizes of metering holes 19 in a wall of a header, which holes communicate with the conduits and are provided in either or both of the headers. If applied to both headers the graduation is in the opposite direction in one header to the other. As shown in Fig. 2, cooling is in two stages, by means. of an upper tube bank 5 which is watercooled and a lower bank 6 cooled by ethyl chloride. The heat-exchanger may be one of a battery of such exchangers for first heating and then cooling a liquid.
Patent GB-704120-A (GB)
Title: Improved method and apparatus for pouring molten metal
IPC: C21C5/46
Filed: 1951-11-09
Abstract: 704,120. Foundry ladles ; metallurgical converters. SOC. D'ELECTRO-CHIMIE, D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE. Nov. 9, 1951 [Nov. 17, 1950], No. 26351/51. Classes 72 and 82 (1) A device for holding back the slag when pouring molten metal for casting from a metallurgical tipping equipment, comprises a member of refractory material, adapted to float, the apparent density of the member being less than that of the metal but greater than that of the slag, the said member being so cut that when the equipment is tipped the lateral faces of the member exactly fit the sides of the spout of the equipment, the lower face of the member leaving a free space between the body of the member and the lower part of the spout of the equipment. Fig. 2 showS a suitably cut member having corners a-h and Fig. 6 shows the member in position in the pouring spout of a metallurgical converter 2, the metal 3 being allowed to pass through space 4 between the bottom of the member and the converter and the slag 5 being retained by the member.
Patent GB-518946-A (GB)
Title: Improvements in apparatus for piercing turf
IPC: E21C49/00
Filed: 1938-09-10
Abstract: 518,946. Turf-piercing machines. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Sept. 10, 1938, Nos. 26451, 30761, and 1673. [Class 6 (i)] Relates to turf-piercing machines of the kind in which a set of tines 12 are axially reciprocated, and consists mainly in arranging the tines in a rearwardly inclined direction so that they enter the turf in a backward direction. As shown in Figs. 1 and 2, the tines 12 are carried by rods 10 guided at the bottom by rollers 13, 14 and at the top by slots 11 engaged by a shaft 5. This shaft carries cams 8 co-operating with rollers 9 on the rods to reciprocate the tines. The guide roller 14 is spring-cushioned. Power is obtained from a motor 4 connected by a belt 6 to a pulley 7 on the cam shaft 5. A chain 17 connects a sprocket on cam shaft 5 to a sprocket on a counter shaft 20 geared to another counter shaft 21 connected by a chain 22 to a main roller 15. The gear ratio between the cam shaft and the roller determines the spacing of the successive holes made in the ground by the tines. A clutch may be interposed. The machine frame is provided with a handle 2 and in operation rests on the main roller 15 and on a guide roller 25 at the back. Another roller 26 is arranged in front to enable the machine to be tilted forwards to lift the tines so far that they cannot reach the ground. In a modification, small cams are provided on the shaft of the rollers 13 to tilt the tines backwardly and upwardly after they have entered the turf, and the cams 8 are shaped to make the tines dwell at the bottom of their stroke while acted upon by the aforesaid small cams. In another modification, the upper end of the slots 11 are curved for a similar purpose. In still another modification, the cam shaft 5 is mounted in bearings adjustable vertically on the frame by a screw and nut . device.
Patent GB-1396819-A (GB)
Title: Liquid crystal display devices
IPC: G02F1/1343
Filed: 1973-06-04
Abstract: 1396819 Modulating light ISE ELECTRONICS CORP 4 June 1973 [5 June 1972] 26537/73 Heading H4F A variably birefringent electro-optic cell comprises a substrate bearing a pair of interdigitated comb electrodes, a second electrode bearing substrate, and a layer of nematic liquid crystal material of the field effect type disposed between the substrate. The comb electrodes may be disposed in different planes while retaining the lateral spacing between the teeth thereof. With a D.C. potential difference between the comb electrodes the nematic molecules align in a first direction. With an A.C. potential difference between the electrode on the second substrate and the two comb electrodes (in common), the molecules assume a second alignment. As particularly described the comb electrodes are interdigitated, and the first and second alignments are perpendicular (homotopic) and parallel to the substrates respectively. Crossed polarizers are disposed on the outer substrate surfaces whereby light is respectively blocked or transmitted. In practice the comb electrodes are configured to display a desired letter or other symbol.
Patent GB-1478142-A (GB)
Title: Surgical staples for use in suturing
IPC: A61B17/115
Filed: 1974-06-15
Abstract: 1478142 Surgical staples VSES N-I INST KHIRURGICHE APPARATURY I INSTRUMENT 15 June 1974 26609/74 Heading A5R [Also in Division E2] A surgical staple Fig. 1, preferably bent in an L-shape, is provided with T-shaped end portions having arcuate cross-strips 6, 7 to fit around end portions of blood vessels to be sutured. Arm 2 of the staple is longer than the arm 4 by a distance equal to twice the thickness of the blood vessel and the cross strip 6 projects above the plane of the arm 2 by the same distance, so that when an end portion of one of the blood vessels is everted using swivelling hooks (85, Fig. 10 not shown) to form a cuff over a mandrel, 29, 30, Fig. 8 provided with the staples, and when the end of the other blood vessel is pulled over the cuff, a suture can be formed between the cross-strips without puncturing the walls of the vessels on the suture line (13, Fig. 5, not shown), whereas prongs 9 pierce the walls away from the suture line to firmly secure the staples. The mandrel comprises two half-bushings 29, 30 each having an annular recess 38, Fig. 7 a pair of T-section slots 40 and recesses 43 the long arm 2 of the staple projecting at right angles to the bushing during the use and wall 44 of the recess 43 acting as an abutment for the the prongs 9 and thereby bending the same. The half-bushings 29, 30 are mounted in respective slots 50, 51 provided respectively in jaw plates 25, 24 of a surgical instrument, Fig. 8, and the jaw plates, pivotally mounted at 23, are provided with radial grooves (58-61), Fig. 12 (not shown) for slidably mounting therein blocks 54-57, each of which is provided with a pivotally connected plate (64), Fig. 9 (not shown) having a guide slot for the staple. The two pairs of blocks are engaged by their respective pushed bars 71, 72, reciprocably connected to the jaw plates 25, 24 and coupled through a pin-and-slot connection to respective stapling arms 75, 76. A device for everting the end of a vessel, comprising four hooks (85), Fig. 10 (not shown) mounted on a split casing (81, 82), Fig. 14 (not shown) is provided with levers pivotally mounted on the respective jaw plates. The half-bushings of different sizes for suturing vessels of different diameters, are either replaceable or are fixed to the instrument.
Patent GB-980015-A (GB)
Title: Hydrocarbon conversion process
Inventor: CARROLL RICHARD TOBEY
IPC: C07C5/56
Filed: 1963-07-06
Abstract: Olefinic and chlorinated hydrocarbons are produced by passing a mixture of a hydrocarbon, hydrogen chloride and oxygen or an oxygen containing gas, e.g. air, over a catalyst containing an iron cation and a phosphate anion at an elevated temperature, e.g. 300-650 DEG C.  The catalyst may be any iron phosphate and may be modified by the use in conjunction with the iron of one or more of the metals nickel, cobalt, copper, chromium, tin, lead, cerium, magnesium bismuth, manganese, cadmium, vanadium and all metals of Group I-IV of the Periodic Table. The catalyst may be supported on any inert carrier, e.g. silica, alumina, clay, pumice, asbestos and porous brick.  Molar ratios of hydrocarbon to oxygen of 1:1 to 10:1 and hydrogen chloride to oxygen of 0.5: 1 to 5: 1 are specified.  The examples describe the preparation of ethylene, ethyl chloride and dichloroethane from a hydrocarbon feed of ethane.ALSO:Olefinic and chlorinated hydrocarbons are produced by passing a mixture of a hydrocarbon, hydrogen chloride and oxygen or an oxygen containing gas, e.g. air, over a catalyst containing an iron cation and a phosphate anion at an elevated temperature, e.g. 300-650 DEG  C. The catalyst may be any iron phosphate and may be modified by the use in conjunction with the iron of one or more of the metals nickel, cobalt, copper, chromium, tin, lead, cerium, magnesium, bismuth, manganese, cadmium, vanadium and all metals of Group I-IV of the Periodic Table.  The catalyst may be supported on any inert carrier, e.g. silica, alumina, clay, pumice, asbestos and porous brick.  Molar ratios of hydrocarbon to oxygen of 1 : 1 to 10 : 1 and hydrogen chloride to oxygen of 0.5 : 1 to 5 : 1 are specified.  The examples describe the preparation of ethylene, ethyl chloride and dichloroethane from a hydrocarbon feed of ethane.ALSO:Olefinic and chlorinated hydrocarbons are produced by passing a mixture of a hydrocarbon, hydrogen chloride and oxygen or an oxygen-containing gas, e.g. air, over a catalyst containing an iron cation and a phosphate anion at an elevated temperature, e.g. 300-650 DEG C.  The catalyst may be any iron phosphate and may be modified by the use in conjunction with the iron of one or more of the metals nickel, cobalt, copper, chromium, tin, lead, cerium, magnesium, bismuth, manganese, cadmium, vanadium and all metals of Group I-IV of the Periodic Table.  The catalyst may be supported on any inert carrier, e.g. silica, alumina, clay, pumice, asbestos and porous brick.
Patent GB-965576-A (GB)
Title: New steroid compounds and processes for their preparation and conversion into isomers thereof
IPC: C07J1/00
Filed: 1961-07-25
Abstract: The invention comprises new oestradienes having the formula: <FORM:0965576/C1/1> wherein R is hydrogen or an acyl radical and a process for the preparation thereof which includes the step of subjecting a 17b -hydroxy or 17b -acyloxy-oestra-4, 9(10)-dien-3-one to the action of a secondary amine so as thus to form the corresponding 3-amino-17b -hydroxy or 17b -acyloxy-oestra-3, 5(10), 9(11)-triene and thence obtaining the corresponding 17b -hydroxy- or 17b -acyloxy-oestra-5(10), 9(11)-diene-3-one by hydrolysis. Alternatively a D 8-3-methyl-7-keto-8-(g -keto-butyl)-3, 4-[31-hydroxy or 31-acyloxy-(21, 11)-cyclopentano]-octahydro naphthalene is subjected to the action of a secondary amine so as thus to form the corresponding 17b -hydroxy or 17b -acyloxy-oestra-5(10), 9(11)-dien-3-one by hydrolysis.  As secondary amine there may be used pyrrolidine. The 17b -hydroxy or 17b -acyloxy-oestra-5(10), 9(11)-dien-3-one may be isomerised, e.g. with perchloric acid to obtain the corresponding D 4, 9(10) isomer thereof which may be isomerised in a further step, e.g. in the presence of palladinised charcoal to obtain 3, 17b -dihydroxy-oestra-1, 3, 5-triene or a 17b -acyloxy derivative thereof.Specifications 914,732, 914,736, 914,737 and 965,577 are referred to.