baber/WOPTO huggingface dataset:
Patent GB-323986-A (GB)
Title: Improvements in and connected with sheet-feeding devices
IPC: B65H3/08
Filed: 1929-04-08
Abstract: 323,986. Ehrig, H., and Keilhauer, U. April 8, 1929. Sheet-separators -In a sheet-separating device of the kind in which blasts of air are directed by tubes b, b<1> against the edges of the sheets of a pile for loosening the edges of the pile and separating the top sheet, the air blasts are controlled by separate valves g, g<1> actuated automatically by independently adjustable cams p<1> and lever- and-link mechanism. The valves are preferably connected by pipes d, d<1> to an air chamber n supplied by a pump, or the pipes d, d<1> may connect directly to an air pump. Other blowers may act on the sides of the pile of sheets.
Patent GB-218048-A (GB)
Title: Improvement in cupola charging hoists
IPC: H01F7/20
Filed: 1923-04-23
Abstract: 218,048. Morgan, W. H. April 23, 1923. Multiple fastenings for skips. -The bottom doors 48 of a charging skip 43 are held in closed position by catches 51 which are operated to release the doors through links 52 connected to a hand lever 55 on opposite sides of its pivoted point 54.
Patent GB-128311-A (GB)
Title: Improvements in Telescopic Sighting Instruments such as Sextants Rangefinders or the like.
Inventor: TAYLOR ALFRED
IPC: G02B23/10
Filed: 1917-07-31
Abstract: 128,311. Taytor, A., and Gray, P. W. July 31, 1917. Sextants. - Telescopic sighting-instruments such as range-finders and sextants comprise a pair of similar telescope systems directed into an eyepiece, one telescope being directly in line therewith, and the other reflecting light into it by a pentagonal prism or optical square arranged permanently between the object-glass and the eyepiece and usually occupying half the field of view; the emergent face of the prism may be in, or approximately in, the focal plane. In the arrangement shown in Fig. 1 for an instrument of the metrometer type, a mask in a distant instrument will be observed directly through the objective 1 and eyepiece 3, 2, half of the field of which is occupied by a pentagonal prism 4 receiving light from the range-object through the objective 5. A roof-prism 6 is placed between the field-lens 3 and the eye-lens 2; or an ordinary four-lens erecting eyepiece may be used. Any known means, such as a sliding-prism, may be added to the instrument for range-finding purposes. In Figs. 4 and 5 is shown a short homebase range-finder in which the telescope objective 9 receives light from the end prism 8, light from an objective 11 at the other end of the base being received by the pentagonal prism 12 occupying half the field of view of the eyepiece 10. The emergent surface of the prism 12 is preferably at or near the focal plane of the objectives. In another form of short-home-base range-finder, light received at one end of the base is reflected inwards by a pentagonal prism and received by a second reflecting- means consisting of a prandl prism, which covers one half of the field of view of an eyepiece receiving the light from this second reflecting-means, and also receiving in the other half-field light direct from an objective. For a sextant, an eyepiece is provided with a prandl prism (or optical square) covering half its field, and is arranged to view the horizon directly through a telescope objective, while the pivoted reflecting-surface of the sextant reflects light into another objective and then into the prandl prism &c., the focal plane of the objectives being coincident, or substantially so, with the emergent face of the prandl prism &c.
Patent GB-178004-A (GB)
Title: Improvements in or relating to shoe forms or fillers
IPC: A43D3/14
Filed: 1921-04-15
Abstract: 178,004. Care, E., and Care, Ltd., G. April 15, 1921. Moulding boots and shoes.-Shoe forms or trees of the type comprising a hollow bottomless fore part formed of mouldable material are made from two or more sections united along the upper edge and moulded to shape on a last. In the form shown, two sections a, b are cut from a material such as three-ply canvas united by adhesive and compacted under pressure. These sections are superimposed, if desired, with the addition of facing sections f, g, and united by a seam c running from the toe d to , the heel e. This blank is then softened, turned inside out by hand and shaped on a suitable last. The form may be strengthened by transverse struts and may have a leg portion. A last, for shaping the blanks, comprising separate foot and leg portions k, l united by pins n and sockets m is shown in Fig. 7.
Patent GB-696100-A (GB)
Title: Improvements in or relating to machines for finishing workpieces
IPC: B24B17/08
Filed: 1951-05-11
Abstract: 696,100. Control of several motors. EX-CELL-O CORPORATION. May 11, 1951 [Oct. 10, 1950], No. 11139/51. Class 38 (iii) [Also in Group XXIII] Four motors M, M1, M2, M3, Fig. 12, are arranged in a machine for finishing turbine blades (see Group XXIII) for, respectively, rotating the tool spindle, rotating the workpiece, driving a pump for circulating coolant, and driving a pump for circulating pressure fluid in a system controlling the movement of the work piece relatively to the tool. The work piece W, Fig. 4, is carried between a work spindle 60 and tailstock on the underside of a frame 40 which is mounted so that it can be swung about a horizontal axis to and from the tool 30 and traversed along this axis with the tool operating on the workpiece. The closure of a switch MS, Fig. 12, in a low-voltage control circuit energises a relay MR which acts through its contacts MR2 to energise the coolant pump motor M2, and the tool spindle motor M is started by closing a switch MS1 so as to energise a relay MR1. For automatic operation, a cycle switch CS, direction switch DS, and cycle-start switch CS-3 are actuated so as to operate the work-spindle motor M1, which is of two-speed type, through the energisation of a relay CR1, contacts CR1-3 and either of two relays MR2 or MR3 according to the speed required. The energisation of the relay CR1 also actuates solenoid valves in the pressurefluid system to feed the frame, with the workpiece, downwardly to the tool and then traverse it for the finishing operation. A limit switch LS 2 acts at the end of this traverse to stop the motor M1 and cause the pressure-fluid system to raise the frame and return it to its initial position whereupon another limit switch LS-1 brings the machine to a stop. The motor M1 which is mounted on the frame 40, drives the work spindle 60, Fig. 4, through gearing 104-109 and its speed is varied automatically by a switch LS-4 co-operating with cams 111 on a disc 110 fast on the work spindle so that the latter is driven at slow speed when relatively flat surfaces of the blade are being operated upon and at high speed when the narrow blade edges are being finished.
Patent GB-101215-A (GB)
Title: Improvements in or relating to Carbonising Furnaces or Furnaces for Reducing Ores.
Inventor: AARTS JACOBUS GERARDUS
IPC: C10B29/02
Filed: 1916-08-08
Abstract: 101,215. Aarts, J. G. Aug. 13, 1915, [Convention date]. Retort and like furnaces; coke ovens.-In vertical coke ovens or retort furnaces for carbonizing and reducing, the walls of the ovens or retorts are formed as heat reservoirs. The walls are built of materials of high specific heat and density, so that, in each horizontal plane, the heat capacity of the walls is several times greater than that of the charge. The bricks are formed with a large number of narrow passages, so that the area of heat-absorbing surface is many times greater than the corresponding wall area of the retort or oven. The resistance to the flow of the heating-gases may be increased by providing transverse baffles in the narrow passages formed in the bricks. In continuously-operating ovens or retorts, the heating is so controlled relatively to the rate of descent of the charge that the temperature of the heating- walls at the lower end is about 1500‹, and at the upper end 500‹ C.. and in each horizontal plane the temperature-difference between the heating- wall and the charge is about 300‹ C. The temperature zones may be formed by incorporating in the bricks different proportions of materials of high or low heat conductivity, and the zones may be insulated one from the other by layers of non-conducting material, such as asbestos. The heatradiating surface of the inner wall of the retort mav be increased by embedding in it a material harder than the charge, for example crystals of silica carbide, chrome-iron ore, or quartz. In the construction shown in Fig. 3, the heating-walls between the retorts are built of bricks b formed with a large number of vertical passages c, across which extend transverse rods or bars d. The bricks are jointed by tongues and grooves, and are insulated from one another by asbestos packing k, m, n Each heating-wall is divided by a partition e, and the proportion of heating-gases supplied at either side of the partition may be controlled by a pivoted damper u operating between stop-bars w. The bricks may be formed of silica carbide, chromite, or graphite, and refractory clay may be used as mortar. The surfaces of graphite bricks which are in contact with the heating-gases may be protected by a covering of non-oxidizable refractory material.
Patent GB-386840-A (GB)
Title: Improvements in apparatus for drying printed sheets
IPC: B41F23/04
Filed: 1932-04-19
Abstract: 386,840. Drying printed sheets. STRAHM, R., 19, Hopfenrain, Berne, Switzerland. April 19, 1932, No. 11221. [Class 100 (ii).] Printed sheets delivered on to the table 1 are dried by heat radiated downwards on to the stack being built, from a stationary radiator comprising electrical resistances 6 controlled individually or in combination and situated in inverted reflector-troughs 3<1>. The radiator is suspended by bolts 4 from spindles 5 on which it is transversely adjustable. The spindles 5 also carry rollers 5<1> working on rails 2<1> by means of which the radiator may be moved longitudinally. A plate 7 protects the rollers of the printing-press from heat.
Patent GB-840137-A (GB)
Title: Thionophosphoric acid esters
IPC: A01N57/10
Filed: 1958-04-09
Abstract: The invention comprises thionophosphoric acid esters of the formula <FORM:0840137/IV(b)/1> wherein R is an alkyl radical containing up to 4 carbon atoms, and R1 is hydrogen, an alkyl radical containing up to 4 carbon atoms, or an aryl radical.  They may be obtained by reacting an a -hydroxy carboxylic acid nitrile of the formula R1CH(OH).CN where R1 is as defined above with an appropriate O,O-dialkyl-thionophosphoric acid monochloride, preferably in the presence of an acid binding agent, e.g. a tertiary amine, alkali metal alcoholate or potassium carbonate. The reaction may be carried out in an inert solvent, e.g. methyl ethyl ketone, a nitrile or hydrocarbon and is suitably effected at elevated temperature. Examples are given for the production of compounds of the first given formula above in which (a) R1 is methyl and each R is ethyl, methyl, n-propyl and isopropyl respectively, (b) R1 is hydrogen and each R is ethyl, methyl, and n-propyl respectively, (c) R1 is phenyl and each R is ethyl, methyl, and n-propyl respectively and (d) R1 is ethyl and each R is ethyl and methyl respectively.  The products have insecticidal properties (see Group VI).ALSO:An insecticidal composition comprises one or more thionophosphoric acid esters of the general formula <FORM:0840137/VI/1> in which R1 is a C1-C4 alkyl radical and R1 is hydrogen, a C1-C4 alkyl radical or an aryl radical, and a solid or liquid carrier, e.g. chalk, talc, bentonite, water, alcohols, or liquid hydrocarbons.  Known insecticides or pesticides may also be present.  Specified compositions comprise aqueous acetonic solutions of the compounds (C2H5O)2P(S)O.CH(CH3)CN and (C2H5O)2 P(S)OCH(C6H5)CN containing benzyl hydroxy diphenyl polyglycol ether as emulsifier.
Patent GB-1586629-A (GB)
Title: Production of urea
IPC: C07C239/00
Filed: 1978-03-21
Abstract: In a process for producing urea with ammonia and pure carbon dioxide as starting materials, the improvement comprises feeding liquid ammonia in part to the absorber (1) with all the carbon dioxide and in part to the synthesis reactor (2). The NH3/CO2 molar ratios are 2 to 4 for the condenser and 2.5 to 7 for the reactor. Film-type absorbers are preferred. <IMAGE>
Patent GB-217007-A (GB)
Title: Improvements in connection with electric winches
IPC: B66D1/12
Filed: 1923-04-26
Abstract: 217,007. Scott, W. H. April 26, 1923. Resistances.-In electric winches of the kind having a hollow water-tight base for containing electric appliances such as starting resistances, means are provided for readily fixing the resistances in position and for removing them when necessary, the securing means remote from the entering door being operable from the outside of the casing. In the illustrated form, the long and narrow tunnel C has a door C<2> at one end and preferably a smaller opening C<3> at the other end. The electric resistances are run into the tunnel on skids d<2> until screwed projections d project through the end wall, and holes in the legs d<3> pass down over and engage screwed rods projecting upwards from the base. Nuts f are then fitted to the screwed rods from the outside of the casing and other nuts f<2> through the open door to secure the resistances in position.
Patent GB-1119402-A (GB)
Title: Improvements in or relating to automatic switching systems
Inventor: CAPLIN JOHN STANLEY
IPC: H04Q3/00
Filed: 1965-03-17
Abstract: 1,119,402. Automatic exchange systems. GENERAL ELECTRIC CO. Ltd. 25 May, 1966 [17 March, 1965], No. 11318/65. Heading H4K. The system described is identical with that disclosed in Specification 1,119,403 and the claims relate to the feature that a call cannot be established over more than 3 junctions between switching centres in tandem.
Patent GB-142135-A (GB)
Title: Improvements in and relating to punching-pliers
IPC: B65B13/30
Filed: 1920-04-23
Abstract: 142,135. Hoffmann, E., (Assignee of Hoffmann Ges., M.). March 28, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Pliers.-Punching-pliers for securing and interlocking superposed or overlapping parts of metal plates, strips, or bands, such a bale-ties, are constructed with a twopronged knife c secured to the jaw a of pivoted pliers, or to the jaw of a tong-like device in which the jaws have a parallel movement. The knife c acts in conjunction with a slot in the other jaw b to punch out two projecting tongues as g, Fig. 2, from the metal strips &c., and the strips &c. are secured together by clinching these tongues between front faces a<1>, b<3> on the jaws a, b. The jaw b is formed with a stop b<2> which guides the strips, and allows these to be placed so as to overlap, or so as to be at rightangles to each other. In the latter case, as shown in Fig. 4, apertures g<1> are formed by the punch in one band f, and notches in the other band f<1>, so that the tongues engage these notches and prevent displacement of the band f<1>. The knife c is guided by a slot in broadened overhanging part b<1> carried by the stop b<2>.
Patent GB-1382521-A (GB)
Title: Process for the production of methacrylonitrile
IPC: B01J23/84
Filed: 1972-03-10
Abstract: 1382521 Ammoxidation catalyst NITTO CHEMICAL INDUSTRY CO Ltd 10 March 1972 [12 March 1971] 11361/72 Heading B1E [Also in Division C2] An ammoxidation catalyst has the empirical formula Fe 10 W a X b Me c O d  wherein: X. is one or more of P, B or Te; M e  is V and/or Mo; a=1-30; b=0.01-15; c=0.01-5; and d= 12-143. The catalyst may be combined with a carrier, e.g. 10-90% wt (of entire catalyst) of silica, alumina zirconia, magnesia, silicaalumina, silicon carbide or inorganic silicate. The preparation of the catalyst includes a calcination step, e.g. at 400-950C for 2-48 hrs. The Examples describe catalyst oompositions combined with silica supports.
Patent GB-421939-A (GB)
Title: Improvements relating to the settlement of dust from rock-drills
IPC: E21B21/00
Filed: 1934-04-16
Abstract: 421,939. Rock drills; spray-producers. MITCHELL, E. M., 106, Harrow Road, Bexley, New South Wales, Australia. April 16, 1934, No. 11389. [Class 124] [See also Group XXIX] The exhaust motive fluid from a pneumatic rock drill is charged with moisture and directed towards the bit. Water from a hose 10, controlled by a cock 9 is directed by a nozzle 12 into a flat jet 13 at right angles to the exhaust air flow in the pipe 6. This pipe is expanded in a hood 7. Filters 14, 15 are fitted in the water pipe.
Patent GB-539064-A (GB)
Title: Improvements in devices for controlling in flight the variation of the pitch of a variable pitch propeller
IPC: B64C11/36
Filed: 1939-04-14
Abstract: 539,064. Toothed gearing. RATIE, P. J. P. April 14, 1939, Nos. 11410 and 11411. Convention dates, Dec. 28, 1938, and March 29, 1939. [Class 80 (i)] [Also in Group XXXIII] Epicyclic gear for varying the pitch of a propeller comprises a casing 3 and a cap 4 secured to the boss of the propeller, the cap having teeth 4a and the casing containing a loose gearring 5 with like teeth. These teeth gear with sets of equal planet pinions 11, 8 respectively mounted on the same shafts and separated by rollers bearing on an external race between the casing and cap, and an internal race. The ring 5 engages pinions 6 the shafts of which mesh with the shafts 7 of worms meshing with wormwheels 7a on the roots of the propeller blades. The planet pinions respectively engage gearrings 12 on a bush 15 and 13 on a ring 32, which are secured to toothed rings engaging a shaft 41 with differing gear ratios. Rotation of this shaft rotates the primary gears 12, 13 to an unequal extent and so gives the gears 5, 4a a relative rotation; whence the blades driven by the gear 5 are tilted on the boss. Fig. 7 shows the ring 38 provided with sets of internal and external teeth, the shaft 41 being shifted axially to engage either of them at the same time as the gear 15a and so give a quick or slow rate of change of the tilt; alternatively, the ring 38 has internal teeth only. The Specification as open to inspection under Sect. 91 describes apparatus in which one of the primary gears is fixed and the other given a motion, and also apparatus in which the pitches of two coaxial screws are regulated. This subject-matter does not appear in the Specification as accepted.
Patent GB-944824-A (GB)
Title: Improvements in or relating to fluid pressure valves
IPC: B60T13/26
Filed: 1961-07-05
Abstract: 944,824. Valves. BENDIX WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. July 5, 1961 [July 14, 1960], No. 11410/63. Divided out of 944,821. Addition to 944,823. Drawings to Specification. Heading F2V. The subject-matter of this Specification is substantially the same as that described in Specification 944,821, but the claims are directed to the manually operated and fluidpressure responsive valve.
Patent GB-494017-A (GB)
Title: Improvements in means for mounting indicating instruments on switchboards or panels
IPC: G01R11/04
Filed: 1937-04-21
Abstract: 494,017. Indicating-apparatus. LISTER, H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 21, 1937, No. 11423. [Class 106 (iv)] Means for mounting indicating-instruments on switchboards comprises a bezel having a projecting cylindrical part adapted to pass into an aperture in the switchboard or panel from the front through which aperture the bezel will not pass and to receive the cylindrical part of the instrument to be mounted, and clamping means by which the cylindrical part of the bezel may be firmly attached to the instrument. The clamping means is provided with locating screws the ends of which abut against the back of the panel and by which the instrument with the cylindrical part of the bezel may be forced backwards away from the rear face of the panel so as to maintain the instrument in position with the rear face of the bezel closely applied to the front face of the panel. In assembling the instrument 3 shown in Figs. 1, 3, the slotted cylindrical part 5 of the bezel 4 is passed through the aperture 2 in the panel 1 and a split clamping ring 8 is slipped over it. The cylindrical part 6 of the instrument is passed into 5 and secured thereto by the bent-up ends 9 of ring 8 being brought tightly together by means of a nut and screw 10 passing through them. The locating screws 12, passing through brackets 11 on the ring 8 and freely carrying resilient bowed strips 13, are then screwed up so as to draw the whole rearwardly until the bezel bears tightly against the panel-front. According to the Provisional Specification, one end 9 may threadedly receive the screw 10. In Fig. 6, the panel is of greater thickness than the length of the bezel-cylinder 5, and accordingly the latter is apertured at 16 to receive the ends 15 of clamps 14 which are bent over and secured by screws 17 and nuts 20 to channelstraps 19 welded in an annular rebated part 18 of the back plate of the instrument. Screws 17 also secure brackets 21 carrying locating screws 22 as shown in Fig. 1.
Patent GB-566727-A (GB)
Title: Improvements in or relating to pouring spouts or necks for containers
IPC: B65D25/40
Filed: 1942-08-14
Abstract: 566,727. Venting motor spirit and other containers. ANGLO - IRANIAN OIL CO., Ltd., and VIVIAN, A. C. Aug. 14, 1942, No. 11435. [Class 21] A pouring spout or neck 1 for a container 2, e.g. for motor spirit, oil and like fluids is provided with a passage 7 for vent air, having an axis of symmetry the cross-sectional normal to which is non-circular. The passage has in it a sharp bend so that the part within the container may lie close to the wall, the vent aperture being exterior to the filling aperture. The fitting 1 may be a casting with a sleeve-like extension 5, or may be stamped from sheet metal to form an inwardly flanged sleeve, adapted to take a cover, and having a socket for the vent tube. The latter may be made from two trough-shaped blanks, and it may be provided with two angular bends. A metal band may be used to secure the vent tube in position.
Patent GB-138518-A (GB)
Title: A new or improved device for holding and emptying collapsible tubes
IPC: B65D35/34
Filed: 1919-05-07
Abstract: 138,518. Skelley, J. M. May 7, 1919. Tubes or containers, collapsible. - A device for detachably holding and emptying collapsible tubes consists of a sliding member having - a rotatable holder provided with a handle or wheel and adapted to engage the sealed end of the tube, so that the tube can be wound on the holder, the sliding member being mounted on one or more guides supported on a bracket and provided at one end with detachable means for holding the neck of the tube. As shown, the sliding member comprises blocks.g, g<1> guided between pairs of rods b<1>, b<3> and carrying a slotted rod h having a handle g<2>. The rods b<1>, b<3> are mounted at their upper ends in brackets a, a' secured to a base-plate c, and are secured at their lower ends by means of brackets a<3>, a<4>. The neck of the tube is held in a central opening in a pivoted link f adapted to be secured in place by a wing-nut and screw f<6>, f<5>; or the neck may be held in a slotted fixed plate co-operating with a hinged plate. A cap f<1> is adapted to be held by a spring against the opening in the plate f, or to be screwed to the neck of the tube, and may be secured to the plate c or one of the brackets a<3>, a<4> by a chain.