baber/WOPTO huggingface dataset:
Patent GB-620097-A (GB)
Title: Improvements relating to heat interchange apparatus
IPC: F28F9/02
Filed: 1947-01-04
Abstract: 620,097. Tubular heat-exchangers; temperature - responsive actuating - elements. SERCK RADIATORS, Ltd., and GARNER. E. Jan. 4, 1947, No. 339. [Classes 64(ii) and 64(iii)] [Also in Group XXVI] In a heat-exchanger of the kind in which an assembly of parallel tubes is surrounded by a shell within which baffle plates are arranged to guide a liquid, e.g. oil, over the tubes, a thin metal strip 3 or each of a plurality of strips is attached at one edge to the edge of a baffle 1 and at the free edge is pressed into tight contact with the inner surface of the shell 2 by the pressure of the liquid within the shell. In the form shown in Fig. 1, the free edges of the strip are formed into flexible tongue pieces by means of equally spaced slits 5. Two such strips may be used one above the other with the tongues of one overlapping the slits of the other. In another embodiment, two strips having relatively broad notches are placed one above the other and the plain pieces in one strip are embossed and lie opposite and within the notches of the other strip. The fixed edges of the strips may be embraced by a folded flange of a third or projecting plain strip. The strips may be attached to the baffle by bending the edge in the form of a clip or the edge may be folded back and doubled to form a flange 4 which is inserted in a complementary groove in the periphery of the baffle. When it is desired to by-pass the flow path when the oil flowing over the tubes is cold and viscous, the strip or strips are of bi-metallic construction and when the temperature of the oil rises sufficiently, the tongue pieces bend towards the shell in response to the heating action of the oil and are then pressed into close contact with the shell by the pressure of the oil. In one embodiment, Fig. 3, two bi-metallic strips 14. 15 are used, each comprising a layer of steel united to a layer of brass, the fixed edges of the strips being enclosed within the fold 16 of a third or projecting strip 17 which is inserted and gripped within a groove in the edge of the baffle I. In a further embodiment, a single bimetallic strip may have the brass layer severed by parallel transverse slits and the free edge of the strip may be folded over to form a bead. The embodiments described can be used for straight longitudinal or circular transverse baffles.
Patent GB-247348-A (GB)
Title: Improvements in or relating to mechanism for registering or controlling paper sheets, blanks or the like in printing machines
IPC: B41F21/10
Filed: 1925-01-06
Abstract: 247,348. Stokes & Smith Co., and Berry, E. F. Jan. 6, 1925. Sheet-registering devices; grippers and gripper mechanism.-In order to register correctly on impression cylinders s of printing- machines blanks, such as envelopes, which are provided with leading edges of angular or rounded formation, a combined stop and gripping-device is provided, so arranged that the forward edge of the blank is received between stop portions which arrest and register the blank, and the gripping-device then closes on the blank to hold it to the impression cylinder. As shown, two separate grippers B are mounted on an oscillating shaft C, and are each formed with a stop or pin B<1> between which is received the angular leading part of an envelope blank F. The stops B<1> are of pin formation, and as the grippers B close on the sheet they push it to a slight extent in a rearward direction, thus ensuring good registration. The grippers B are adjustable axially of the shaft C, and also are secured by screws B' and slots B<5> to bushes B<2> freely mounted on the shaft C. The screws B' enable the grippers to be adjusted in a direction perpendicular to the shaft C. The grippers B are normally pressed by springs B<4> into contact with lugs C<4> on blocks C<1>. secured to the shaft C by a bolt C', and so the grippers B engage the sheet in a resilient manner. The sheet is taken from the grippers B by a gripper E on a delivery cylinder D. In place of two grippers B, a single bifurcated gripper may be used with a pin B<1> on each fork of the gripper. The machine shown is provided with a shaft to which can be fixed stops for registering, in a known manner, sheets with straight edges.
Patent GB-137528-A (GB)
Title: Arrangement for supplying an adjustable quantity of air to the cylinders of explosion motors, for varying the proportions of the air and fuel in the explosive mixture andeconomising fuel
IPC: F02D9/00
Filed: 1920-01-06
Abstract: 137,528. Schwarzer, F. Aug. 12, 1918, [Convention date]. Regulating.-A valve device for admitting an extra air supply to the induction pipe comprises a slightly conical casing 1 with its upper edge shaped to a knife-edge 6, and a cap 9 which can be raised or lowered to vary the opening past the edge 6. The cap is slotted and perforated at 11, 12 and grips the conical surface of the valve casing: it is secured to a set-screw 13 and is raised or lowered when turned by means of the handle 14. The upper surface of the cap has set markings which are read against a fixed pointer 17. The valve device is attached to the dashboard of a motor-vehicle by means of the bracket 3.
Patent GB-522331-A (GB)
Title: Alarm device for indicating relative pressure changes in twin pneumatic tyres
IPC: B60C23/04
Filed: 1939-01-06
Abstract: 522,331. Pneumatic tyres. MALADRY, Y., and HAMET, M. C. Jan. 6, 1939, No. 533. Convention date, Jan. 10, 1938. [Class 144 (i)] Relates to twin-pneumatic tyres and consists in an -alarm device for indicating deflation on either tyre, the device being operated by the opening of a valve when a predetermined pressure - difference obtains in the tyres. A tubular casing 7 provides a pair of chambers 11, 12 having connections 51, 52 to the tyres and valvecontrolled outlets to a pipe 39 leading to an acoustic signal 45. Arranged within the casing 7 is a fleXible bellows 8 one end of which is screwed to a nut 9 threaded into the casing, the other end being carried by the piston-head of a cylinder 10 arranged to slide in the nut 9. Strong springs 29a are fitted between a central partition in the cylinder 10 and thimbles 29 through which the stems 25, 26 of valves 13, 14 are adapted to slide: Weaker springs 33, 34 are fitted under adjustable nuts 31, 32 on the ends of the valve-stems. In the normal (balanced) position of the cylinder 10, the valves 13, 14 seat on plugs 15, 16 but if a predetermined excess pressure is set up in either of the chambers 11, 12, the corresponding valve is moved away from its seat to vent the higher-pressure chamber through a port 15 or 16 to the pipe 39 and horn 45. To limit the consequential deflation of the higher-pressure tyre, an adjustably-loaded valve is fitted to the pipe-connection 39.
Patent GB-766746-A (GB)
Title: Improved method of increasing the thrust of gas turbine jet propulsion engines at high flying speeds
IPC: F02C3/30
Filed: 1955-01-07
Abstract: 766,746. Gas turbine jet propulsion plant. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. Jan. 7, 1955 [Feb. 25, 1954], No. 553/55. Drawings to Specification. Class 110 (3). [Also in Group XII] The thrust of a gas turbine jet propulsion engine is increased at high flying speeds by feeding into the combustion chamber of the engine oxygen, a fuel rich in oxygen or a substance rich in oxygen such as nitric acid in addition to the usual fuel and increasing the area of the discharge nozzle of the engine in response to the increased gas volume so that the maximum rotational speed of the engine increases with each inlet temperature increase according to the formula n = k#T, where n is the rotational speed, T the inlet temperature in degrees absolute and k is a constant.
Patent GB-853987-A (GB)
Title: Improvements in or relating to the manufacture of printed circuits
IPC: H05K3/34
Filed: 1957-01-08
Abstract: 853,987. Making printed circuits; soldering. BLAUPUNKT-WERKE G.m.b.H. Jan. 8, 1957 [Feb. 4, 1956], No. 661/57. Classes 83 (2) and 83 (4). Circuit components are secured to printed circuits by locating, e.g. by cementing or wiring or inserting in a recess, the components on the printed circuit base on the same side as the printed circuits and completely immersing the components in a bath of solder to solder, the terminal portions of the components to the printed. circuits. The printed circuit may be formed as described in Specification 833,000 by adhering a pattern of metal powder to a base and attaching the components as described above, the dip-soldering serving to form the tracks of powder into continuous conductors. The components as described in Specification 3520/57 have terminals at or adjacent their ends and intermediate portions formed of or covered with a heat-resistant or solder-repellant material. The components 2, Fig. 1, are positioned in magazines 1 and are in turn forced by a ram 6 past a detent spring 4 into contact with the printed circuit 7 which has been provided with adhesive in appropriate places. In a modification the components 2, Fig. 2, are transferred from magazines 16 by a suction device 11 which deposits them on a prepared printed circuit 7. The assemblies are then dip-soldered.
Patent GB-391544-A (GB)
Title: Improvements in or relating to hobs for cutting worm wheel gears
IPC: B23F21/16
Filed: 1932-01-09
Abstract: 391,544. Gear-cutting. ASSOCIATED EQUIPMENT CO., Ltd. and JONES, E., Windmill Lane, Southall. Middlesex. Jan. 9, 1932, No. 700. [Classes 83 (ii) and 83 (iii).] Milling - cutters. -In a hob for machining worm wheels the backing off of the teeth commences some distance back from the cutting faces to leave full-sized lands at the front of the teeth, the length of the lands being gradually decreased to zero. In operation, the hob is fed axially and the teeth at the entering end of the hob are reduced in size so that the cut is evenly distributed when a constant axial feed is employed. In making the hob, a slightly over-size blank is threaded and gashed to form over-size teeth with radial leading faces 3. The trailing parts of each tooth are then backed off as shown at 5, leaving lands 6 at the leading ends. The leading faces are then machined to remove a progressively increasing amount of metal from succeeding teeth by a second gashing operation directed along a helix of shorter lead than the gashes 2. This operation is shown in Fig. 5 where 8 indicates the line of tooth faces before the second gashing, 9 indicates the line of commencement of the backing off operation and 10 indicates the line of the leading tooth faces after the second gashing. Thus, starting from the large end of the hob, Fig. 4, the lands 6 progressively decrease and finally disappear about the centre of the hob, after which the leading faces of the teeth gradually decrease in size. After the second milling operation the hob is hardened by heat treatment and then ground to correct tooth form. The leading faces are ground by a pencil grinder. The hob described above is used for finishing previously roughed teeth, but if the entering portion of the hob is tapered as shown by dotted lines in Fig. 4, the hob may be used for completely cutting a worm wheel.
Patent GB-897238-A (GB)
Title: Improvements relating to the removal of aromatics and sulphur from hydrocarbon feedstocks
IPC: C10G59/02
Filed: 1960-01-08
Abstract: Aromatics and sulphur are removed from feed-stocks boiling in the gasoline range (i.e. up to 400 DEG  F.) and consisting of C4 or higher hydrocarbons containing aromatic hydrocarbons and sulphur compounds, by contacting the feedstock in the presence of hydrogen with a bed containing two catalysts, one consisting essentially of tungsten nickel sulphide and the other consisting essentially of cobalt and molybdenum oxides, either as such or in combined form, on a refractory oxide support, e.g. alumina.  The reaction zone is maintained at a temperature of 400-900 DEG F. and a pressure of 50-1,200 psig.  Preferably the catalysts are in separate portions of the bed, and are so arranged that the feedstock contacts the tungsten nickel sulphide catalyst first. The cobalt molybdenum catalyst preferably contains 1 to 10% of cobalt oxide, 5 to 40% of molybdenum oxide, and may also contain 0,1 to 6% of fluorine.  The ratio of tungsten to nickel in the tungsten-nickel sulphide catalyst is preferably 3:1 to 10:1.  The hydrogen sulphide may be removed from the product by stripping with an inert gas.ALSO:Prior to isomerisation, aromatics and sulphur compounds are removed from feedstocks boiling in the gasoline range (i.e. up to 400 DEG F) and consisting of C4 or higher hydrocarbons containing aromatic hydrocarbons and sulphur compounds, by contacting the feedstock in the presence of hydrogen with a bed containing two catalysts, one consisting essentially of tungsten nickel sulphide and the other consisting essentially of cobalt and molybdenum oxides, either as such or in combined form, on a refractory oxide support, e.g. alumina.  The reaction zone is maintained at a temperature of 400 DEG F.-900 DEG F. and a pressure of 50-1200 p.s.i.g.  Preferably the catalysts are in separate portions of the bed, and are so arranged that the feedstock contacts the tungsten nickel sulphide catalyst first.  The cobalt molybdenum catalyst preferably contains 1%-10% of cobalt oxide, 5%-40% of molybdenum oxide, and may also contain 0.1%-6% of fluorine.  The ratio of tungsten to nickel in the tungsten-nickel sulphide catalyst is preferably 3 : 1 to 10 : 1.  The hydrogen sulphide may be removed from the product by stripping with an inert gas.  The so treated desulphurised and dearomaticised feedstock is subjected to isomerisation by contacting it in the presence of hydrogen with a catalyst consisting essentially of an aluminium halide, for example the chloride or bromide, and a hydrogenating metal, which may be selected from Group VI(a) and VIII of the Periodic Table, preferably the platinum group, on a refractory oxide support, preferably alumina which may have been prepared from an alcoholate.  The isomerisation is preferably carried out at 50 DEG F.-400 DEG F. and 0-2000 p.s.i.g., and may be effected either in the liquid or the vapour phase.
Patent GB-701670-A (GB)
Title: Improvements in or relating to spindle and pulley assemblies for machine tools and the like
Inventor: CRAIG ANDREW MURDOCH
IPC: B24B47/10
Filed: 1952-01-09
Abstract: 701,670. Belt and chain gearing; removing shafts. BOURDON TOOLS, Ltd. May 16, 1952 [Jan. 9, 1952], No. 741/52. Classes 80 (1) and 80 (2) In a grinding or like machine wherein a toolcarrying spindle 9 is driven by a belt (or chain) 54 engaging a pulley (or sprocket) 41 on the spindle, the pulley 41 rotates on fixed bearings 46, 47 in a housing 1 while the spindle 9, which has bearings 7, 8, 21 in the housing, is slidably keyed in the pulley so that, after removing screws 3, the spindle and lower bearing unit may be lowered to allow removal or replacement of the belt 54. The arrangement also ensures that the load of the belt tension is not transmitted to the spindle and that the main bearings, 7, 8 of the latter are readily accessible. The housing 1 is vertically slidable on a column (not shown) containing the driving pulley and motor, and has a detachable closure plate 2 carrying the lower bearing housing 4. A flanged collar 10 on the spindle 9 prevents oil leakage, and the grinding wheel may be flxed to the collar or to an extension of the spindle. Preferably the grinding wheel head and the plate 2 are formed as in Specification 696,198, [Group XXII], to provide liquid coolant or lubricant to the grinding wheel. The bearings 7, 8 are clamped between upper and lower cover plates (the upper plate not being shown) and spacing sleeves, and are adjusted by a nut 17 locked by a grub screw and circlip. The rollers of the upper bearing 21 are held in a cage and remain in the fixed outer race when the spindle 9 is lowered. The pulley 41 has a boss 52 engaging the inner races of the two bearings 46, 47, the outer races being fixed to a housing partition 42. When the spindle has been lowered and a cap 39 removed a belt may be threaded downwardly through the bearing 21, or, if the spindle is withdrawn entirely, upwardly through the pulley boss 52. Alternatively an opening 57 in the housing 1 may be provided. Lubricating nipples 63, 66, 72 and corresponding passages are provided for the bearings. In a modification the rollers and inner races of the bearing 21 are lowered with the spindle leaving the outer race fixed, and a collar on the spindle, similar to the collar 10, closes the underside of the bearing. In a further modification the bearing 21 is a ball bearing and the whole bearing is lowered with the spindle 9, the outer race being slidable in its mounting.
Patent GB-1077251-A (GB)
Title: Improvements in elastic fluid turbine rotor cooling
IPC: F01D11/02
Filed: 1966-01-07
Abstract: 1,077,251. Steam turbines. GENERAL ELECTRIC CO. Jan. 7, 1966 [Feb. 15, 1965], No.754/66. Heading F1T. A multi-stage axial-flow elastic-fluid turbine is provided with collecting passages in the working fluid path, for example on the leading edge of a nozzle partition, through which working fluid is conducted to the space between the upstream side of the diaphragm and the adjacent rotor disc, the arrangement acting to cool the leakage fluid present in that space. The steam turbine shown comprises rotor discs 4, 5 formed integrally with a shaft portion 3, the rotor discs carrying blades 6, 7 respectively. Inter-stage diaphragms 11, 12 are supported from the stator casing 1, the diaphragms carrying nozzle partitions 13, 14 by which steam is directed on to the rotor blades 6, 7 respectively. The diaphragms carry seal members 15, 19, 25 and define with the adjacent rotor discs chambers 18, 21, 24. Pressure balancing ports 16, 17 are provided and extend through the rotor discs 4, 5. Slots 27 are provided in certain of the nozzle partitions 14, the slots communicating through passages 28, 29 with the space 21 between diaphragm 12 and rotor disc 4. Steam which has expanded through the rotor blades 6 and been cooled thereby is tapped off through slots 27 and passes to the chamber 21 where it acts to cool the leakage steam which has passed through the balance port 16 to the chamber. The cooled steam mixture in the chamber divides, part passing outwardly into the working fluid passage and the remainder passing inwardly thence through the seal 15 to the chamber 24 and so through the balance ports 17 to the next chamber where it is again cooled. The invention is applicable in the case in which balance ports through the rotor discs are not provided.
Patent GB-567974-A (GB)
Title: Apparatus for analysing gas
IPC: G01N31/12
Filed: 1943-01-15
Abstract: 567,974. Gas analysis. KENT, Ltd., G. Jan. 15, 1943, No. 807. Convention date. Feb. 19, 1942. [Class 1 (i)] Oxygen in a gaseous mixture is determined by adding hydrogen or other combustible gas tb the mixture in constant ratio, effecting combustion under conditions avoiding reaction with the other constituents of the mixture, and measuring the thermal conductivity of the gas after combustion. The sample and hydrogen are admitted to the apparatus at 2 and 1 respectively and mixed in tube 3. The mixture is saturated with water vapour in vessel 5 and passes through conductivity cell 6, combustion tube 12, condenser 14 for removing excess water vapour, and conductivity cell 16. The cells 6 and 16 are enclosed in a housing to maintain them at the same temperature and are connected in a Wheatstone bridge in known manner. To maintain constant the ratio of sample to hydrogen the gases are maintained under a constant pressure equal to the head of a column of liquid D in vessel 19, into which branches of the inlet pipes dip.
Patent GB-450219-A (GB)
Title: Joints for linkages
IPC: F01L1/12
Filed: 1935-01-10
Abstract: 450,219. Joints for linkages; engine valve gear. ARMSTRONG SIDDELEY MOTORS, Ltd., and VIALE, S. M., Armstrong Siddeley Works, Park Side, Coventry. Jan. 10, 1935, No. 861. [Class 80 (iii)] [See also Group XXVII] Relates to a joint between a link or rod and another element, where the ends of the rod partly rotate between small limits about axes which are not parallel to or coplanar with one another. Usually, a spherical joint would be employed, but this has disadvantages as regards lubrication and working under tension. According to the invention, a cylindrical joint is used, and is arranged so that the end of the rod remote from the joint is in its correct position, or the rod is not subject to bending or twisting, at least once during and between the limits of the movement in one direction. The invention is described as applied to the joint between a rocker arm 13, Fig. 2, and a tappet rod 12 of an internalcombustion engine, the lower end 16 of the rod being assumed to rotate about an axis at infinity, i.e. to have rectilinear movement. The tappet rod 12 is not only inclined to one side of the cylinder axis 15, Fig. 2, but is inclined inwardly toward the axis. The result is that the axis 26 of the joint 19 is inclined to the axis 18 of the rocker arm both in elevation, Fig. 2a, and in plan, Fig. 3. In place of a plain pin, a ball or roller bearing may be used. Graphical and analytical methods of obtaining an approximate axis for the joint are described in the Specification.
Patent GB-315232-A (GB)
Title: Improvements in or relating to fuels and firelighters
IPC: C06B31/30
Filed: 1928-01-10
Abstract: 315,232. Thiecke, J., Minimax Akt.- Ges., and Herzog, H. Jan. 10, 1928. Fumigants.-A fuel or fuel-igniting substance is made by moulding and pressing into a suitable shape a mixture of ammonium nitrate and an organic substance, such as charcoal, together with an igniting mixture such as potassium chloride antimony sulphate and peroxide of lead the whole being coated with paraffin, shellac or like substance impervious to moisture. A block of fuel may be made in the shape of a match with the igniting mixture forming the head. The products of combustion may be used for destroying vermin.
Patent HK-53090-A (HK)
Title: Oxysalicylamido derivatives
Inventor: BENGTSSON KARL STEFAN
IPC: C07D207/09
Filed: 1990-07-12
Abstract: Novel therapeutically active compounds of the formula <CHEM>  wherein Z , being Z<1>, Z<2> or Z<3>, is the same or different and selected among OH, OR<1>, NH2, NR2<4>, NHR<4>, SH, SR<4> and OR<4> wherein R<1> is a formyl group, an acyl group, an alkoxycarbonyl group or a mono- or dialkylcarbamoyl group and R<4> is a lower alkyl group, R<2> is a hydrogen, a halogen, a lower alkyl or a lower trifluoroalkyl group, R<3> is a hydrogen atom, a lower alkyl group, an alkenyl group, an alkynyl group or a phenyl group, which phenyl group could optionally be substituted by one or more of fluoro, chloro, bromo, trifluoromethyl, methyl, ethyl, methoxy or ethoxy in the ortho, metal or para positions, or optionally substituted by methylenedioxy, provided that at least one of Z<1>, Z<2> and Z<3> is a group OR<4> and further provided that when Z<2> is OH or NH2, Z<1> is NR2<4>, NHR<4>, SH, SR<4> or OR<4> or a physiologically acceptable salt or optical isomer thereof, intermediates and methods for their preparation, pharmaceutical preparations containing the compounds and methods for their therapeutical use.
Patent HU-T36016-A (HU)
Title: Method for producing fibre reinforced woundel plastic tubes
Inventor: NAGY SANDOR
Filed: 1983-03-15
Abstract: Pipes are produced individually on a winding machine, using several tools, each of which can be held in a rotating carrier. The surface of a tool is prepd. by the known method and the tool is rotated by the carrier located in front of the tray of the winding machine, while the filament is wound on. When the winding process is complete the carrier is replaced by another, the pipe is removed from the tool, which is then prepd. for the mfr. of the next pipe.