baber/WOPTO huggingface dataset:
Patent GB-647516-A (GB)
Title: Improvements in or relating to the production of flexible tubing
IPC: B21C37/12
Filed: 1943-06-21
Abstract: 647,516. Tube-making machines. BREMER, R. C.June 21,1943, No. 17303/48. Divided out of 647,460, under which a Specification was laid open to inspection under Sect. 91 of the Acts, July 31, 1944. Drawings to Specification. [Class 99(ii)] [Also in Groups XXII and XXXVI] In a machine for the production in continuous lengths of flexible tubing or armouring from strip material, the strip being wound on a core to form a tube which is then corrugated by passing 'through a rotating corrugating tool, the tube is fed to the tool by a rotating spindle ori which the strip is wound in overlapping convolutions under tension. The machine is described in detail in Specification 647,460. Specifications 647,513, 647,515 and 647,517 also are referred to.
Patent GB-825185-A (GB)
Title: Improvements in or relating to the purification of electrolytic fluorine
Inventor: RAVENSCROFT ARTHUR WESLEY
IPC: C01B7/19
Filed: 1957-05-31
Abstract: HF-contaminated electrolytic fluorine is contacted with sodium fluoride powder at between 0 DEG  and 85 DEG  C. and the absorbent containing absorbed HF is subsequently regenerated by heating, and the steps of removing HF contaminant in F2 by regenerated absorbent at the specified temperatures and regenerating are repeated. Regeneration may be at 200-400 DEG  C. in situ, in a stream of inert gas, e.g. N2 or air.  The NaF powder may be in shallow beds in trays disposed in a series of superimposed horizontal shelves, which may be heated for regeneration by a grid of electric cable below each layer of trays or by a cable buried in the bed.  Residual HF may be removed by passing the F2 through a further tower packed with NaF pellets.
Patent GB-406544-A (GB)
Title: Improved sight for machine guns for anti-aircraft defence
IPC: F41G3/00
Filed: 1933-06-19
Abstract: 406,544. Anti-aircraft gun sights. AKT.-GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho- Slovakia, and PETSCHENIG, K., 5, Sonnleithnergasse, Vienna. June 19, 1933, No. 17435. [Class 92 (ii).] Relates to anti-aircraft machine gun sights of the kind in which a slidable ring foresight 21, Fig. 3, is employed in conjunction with a fixed rear bead sight 26, the plane of the ring sight being maintained horizontal during elevational movements of the gun. According to the invention, the ring sight is slidably adjusted along the gun barrel in accordance with the range, its centre being meanwhile automatically adjusted vertically downwards to suit the tangent elevation by a distance depending only on the range. In the sight shown, the ring sight is mounted on a box 17 rotatable in a box 7 about a shaft 13 during gun elevation by helical gearing 6, 4, 12, the wheel 6 being mounted on the axis o of the gun trunnions. The box 7 is slidable parallel to the axis of the gun by operating a screwed shaft 9 from a range hand-wheel 10. During this movement, the end of the shaft 13 bears under spring action against a cam rail 14, and through a horizontal rack rotates pinions 15 engaging vertical racks on the sliding support 20 of the ring sight.
Patent GB-1341888-A (GB)
Title: Furnace for treating material at high temperature and under high pressure
IPC: B01J3/04
Filed: 1971-05-27
Abstract: 1341888 Vacuum furnace ALLMANNA SVENSKA ELEKTRISKA AB 27 May 1971 [10 July 1970] 17468/71 Heading F4B The thermal insulation of the furnace chamber of a furnace arranged inside a pressure cylinder having closures held in place by a press yoke while the furnace is supported by a stand comprises at least two cylindrical members closed at the top having intermediate insulation. The furnace chamber 22 is enclosed by a cylinder 25 closed at the top by a lid 27, Fig. 2, and spaced from an outer member having double cylindrical walls 30, 31 and a lid 35 by insulation 38. A ring 33 is welded to the intermediate wall 30, and the outer wall 31 is free to move axially with respect to the ring 33, Fig. 3. A pressure release hole 40 through the ring 33 connects the space 38 between the walls 25, 30 with the space within the pressure casing 10, and the ring 33 is bolted to an annular member 21 to hold the flange 26 of the wall 25 in place. Conductors 52 for heating elements 51 pass through a seat 19 for the bottom closure 20 of the pressure chamber, and insulation 62 within sleeves 60, 61 isolate the furnace chamber from the closure seat 19. The bottom closure 20 carries an insulating plinth 50 for supporting the charge, and is raised and lowered for charging and discharging by a lifting device on the stand carrying the furnace. The same device may be used to remove the closure seat together with the furnace insulation so that it may readily be replaced. The insulation member may be supported from the upper closure of the pressure chamber.
Patent GB-808560-A (GB)
Title: Improvements in or relating to chuck or collet operating mechanism for automatic lathes or like machines
Inventor: TOMLINSON GEOFFREY ERNEST SECK
IPC: B23B31/26
Filed: 1955-06-17
Abstract: 808,560. Chucks. BIRMINGHAM SMALL ARMS CO. Ltd. June 8, 1956 [June 17, 1955], No. 17483/55. Class 83 (3). A chuck or collet-operating mechanism for lathes &c. comprises a push-spindle 1 operated by levers 5 which act through levers 17 adapted to react the lateral component of the operating force applied by levers 5. The levers 5, operated by a cam surface 21 on a ring 11 moved by a yoke engaging a recess 13 in the ring, are located in slots 4 in the hollow machine spindle 3, and pivot about pins 7 in a ring 9 adjustable on the spindle. An annular member 19 on the spindle supports the intermediate levers 17 on pivots 12.
Patent GB-1458315-A (GB)
Title: Prostanoic acid derivatives
IPC: C07C401/00
Filed: 1974-04-22
Abstract: 1458315 Compositions containing prostaglandins IMPERIAL CHEMICAL INDUSTRIES Ltd 24 March 1975 [22 April 1974] 17497/74 Heading A5B [Also in Divisions C2 and C3] Pharmaceutical or veterinary compositions, suitable for oral, rectal or vaginal administration, or in a form suitable for inhalation or infusion, contain prostaglandins of the formula I: wherein R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are H or C 1-5  alkyl; A is ethylene or vinylene; X is ethylene or trans-vinylene; R<SP>5</SP> is phenyl or naphthyl optionally substituted by C 1-5 ; alkyl, C 1-5  alkoxy, C 1-5  haloalkyl, halogen, hydroxy or 2-tetrahydropyronyloxy; and the ring system is 3α, 5α-dihydroxycyclopentylene and R<SP>1</SP> is carboxy, C 2-12  alkoxycarbonyl or hydroxymethyl; or the ring system is 3α-hydroxy-5-oxocyclopentylene or 5-oxo-3-cyclopentenylene and R<SP>1</SP> is carboxy or C 2-12  alkoxycarbonyl, or salts thereof when R<SP>1</SP> is carboxy together with pharmaceutically or veterinarily acceptable diluents or carriers. The compounds possess luteolytic activity, and can be used in combination, or concurrently, with uterine stimulants, such as oxytoxin or with gonadotrophins, such as pregnant mare serum gonadotrophin and human chorionic gonadotrophin. The compounds are also used as hypertensives, for the relief of bronchospasms, and as inhibitors of blood platelet aggregation or of gastric secretion.
Patent GB-638713-A (GB)
Title: Improvements in, or relating to apparatus for heating metal objects
IPC: C21D9/00
Filed: 1947-07-03
Abstract: 638,713. Furnaces ; charging. KEENER, S. F. July 3, 1947, No. 17498. Convention date, May 28 1940. [Class 51 (ii)] [Also in Group XXX] A heat-treatment furnace includes a system of rolls arranged along one side of the heating chamber on which the work, elongated metal objects, is fed longitudinally, and a transverse system of conveyers which carry the work from the rolls at the inlet side of the chamber, across the chamber to a second system of rolls which discharge the work longitudinally from the furnace. Long workpieces are fed from a roller conveyer 56 onto driven rolls 45 arranged along one side of a heating chamber 12. The work is then deposited, on the lowering of the rolls 45; onto a series of continuous hearth chains 35 extending transversely across the heating chamber, whence it is carried across the chamber to a second series of rolls 45 arranged along the other side of the chamber. These rolls on being raised lift the work from the chains 35 and convey it to a discharge roller conveyer 60. Spindles 43 of the rollers 45 are driven from common motors 52 and are carried at the ends of pivoted arms 42 outside the furnace. These arms, and thus the rollers 45, are, for each side of the furnace, adapted to be raised or lowered together, automatically if so desired, by operating rods 54 moved by the pistons of air cylinders 55. A number of heating units 14, spaced at intervals along the top of the heating chamber 12, include, Fig. 1, a chamber 15, a fan 19, temperature controlled electric heating elements 16 and a duct 17, so arranged that hot gas is circulated across the heating chamber 12 in a direction opposite that of the movement of the work. Upper and lower walls 21, 22 of the chamber 12 are of saw tooth formation to provide for a more turbulent flow of gas over the work.
Patent GB-574928-A (GB)
Title: Improvements in the cylinders of heat engines having opposed pistons
IPC: F02F1/18
Filed: 1944-09-13
Abstract: 574,928. Cylinders. PESCARA, R. P. Sept. 13, 1944, No. 17527. Convention date, Aug. 6, 1943. [Class 7 (ii)] In an opposed piston engine in which each cylinder is formed in three parts, the end parts are attached to the middle part which forms the combustion chamber by means which both clamp the parts together axially and impose circumferential compression on the two end parts when they become heated in action. A compression - ignition free - piston engine is described in which the middle part 1 is clamped to the end parts 2 by rings 17 held by studs and nuts 18, two-part rings 21 being inter. posed. The rings 21 are a tight fit and bear on flanges on the two parts, passages 19 being provided for the flow of cooling liquid which keeps the rings cool. The cooling liquid enters by a passage 25 and leaves by a passage adjacent the exhaust ports at the other end of the cylinder. Baffles 24 opposite the ring 17 are provided. The passages 19 may be formed in flanges 20 on the cylinder end parts 2. The flanges 20 and the two-part rings 21 may be tapered so that the flanges are compressed when the nuts 18 are tightened.
Patent GB-636943-A (GB)
Title: Improvements in and relating to workpiece clamping devices
IPC: B21D11/02
Filed: 1946-06-12
Abstract: 636,943. Work-holders. SHAW, V. S. June 12, 1946, No. 17585. [Classes 83 (iii) and 83 (iv)] Bending ; stretching ; stamping.-A clamp for a stretching or other machine comprises a series of jaws 15<SP>1</SP>, 16 connected by toggle links 22, 26 to abutment members 15, 16<SP>1</SP>. Each jaw 15<SP>1</SP> is connected by an adjustable bolt 28 to a common member 29 and the jaws 151, 16 are supported by a member 34. In orifices between members 34, 29, 10 are enclosed expansible tubes 33, 35 controlled by a valve in a fluid circuit. When pressure is admitted to the tube 35 member 34 raises the jaws 151, 16 to close to jaws by action of the toggles. When pressure is admitted to the tube 33 the bolts 28 lower the jaws to release the clamps.
Patent GB-637597-A (GB)
Title: Improvements in or relating to circuit arrangements for producing control signals dependent upon the frequency difference between electrical oscillations
Inventor: STILLWELL PETER FREDERICK THOM
IPC: H04N5/12
Filed: 1947-07-04
Abstract: 637,597. Automatic frequency control. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 4, 1947, No. 17643. [Class 38 (iv)] [Also in Group XXXVI] To obtain a control signal whose sign is dependent on the sense of the frequency differences between two sets of oscillations, at least one of which is of sawtooth or like asymmetrical form, the oscillations are mixed in a non-linear mixing circuit and the output is differentiated. As shown in Figs. 1-4, one oscillation, Fig. 1, is of sawtooth form and the other of pulse form, Fig. 2. The mixer output takes the form of a series of pulses of varying amplitude, Fig. 3, the envelope of which, shown as a dotted line, is of sawtooth form and of the beat frequency. This envelope is differentiated to produce a series of pulses, Fig. 4, which are of positive or negative sign according to the sense of the frequency difference. The circuit of Fig. 5 employs a mixer valve 2 with two control grids to which the oscillations of Figs. 1 and 2 are respectively applied. The output envelope is derived from the anode across a resistor 8 shunted by a condenser 9. This envelope is amplified in the valve 12 and is differentiated by including an inductance 14 in the anode circuit. The anode is connected to a negative point through resistors 15, 16, 17 and the ends of the resistor 16 are connected through oppositely-poled diodes 18, 19 to a point 20 at which the control voltage is taken off. Both valves 2, 12 have cathode resistors 7, 13, the effect of which is to render the cathode current of the same form as the voltage applied to the inner control grid. The sawtooth voltage, Fig. 1, may be derived from the mains supply and the pulses, Fig. 2, may be the frame pulses of a television transmitter, the control voltage obtained at 20, Fig. 3, being used to adjust the pulse frequency. In a modified circuit, Fig. 6, the mixer 23 is of the kind described in Specification 534,750, the output of which is fed through a differentiating condenser 24 to the grid of a valve 25. Fig. 7 shows the output waveform from the mixer 23, and Fig. 8 the differentiated output applied to the valve 25. A feedback circuit 26, 27 between anode and grid gives the valve 25 a low input impedance. The pulses resulting from the differentiation are amplified in the valve 33, the output circuit of which is similar to that of the valve 12 of Fig. 5. The control voltage is fed to the grid of the valve 41 which has a negative feedback path 42 ... 45 operative only for A.C. components and giving a smoothed output at the terminal 47. When the frequencies of the two inputs to the mixer 23 are the same, the mixer output is a constant or slowly-varying direct voltage dependent on phase difference, and is applied directly to the grid of the valve 41 through a resistor 48 and smoothing condenser 49.
Patent GB-639454-A (GB)
Title: Apparatus for growing plants with the aid of nutrient liquids
IPC: A01G31/02
Filed: 1948-07-01
Abstract: 639,454. Treatment of growing plants. MULLARD, S. R. July 1, 1948, No. 17729. [Class 6 (ii)] A container 1 for plant-growing absorbent material is provided with a trough 3 for nutrient liquid. A perforated convex partition 4 supports glasswool or the like 5 for conveying the liquid from beneath the partition to the plant-growing medium above. The trough may project through the container walls and be replenished from outside, or this may be effected by vertical funnels inside. The material used for the plants may be peat moss, sand, vermiculite (such as that known under the Registered Trade Mark " Exflor "), or mixtures of these. Cranked plant-supports 12 may be mounted in sockets 9.
Patent GB-497844-A (GB)
Title: Improvements in the manufacture and production of porous metal bodies
IPC: B22F3/11
Filed: 1937-06-25
Abstract: Porous metal bodies are produced by sintering, at temperatures above 650 DEG  C., powders of iron, nickel, or cobalt, or mixtures of these metal powders, using powders the pouring weight of which amounts to less than 2,0 kilogrammes per litre.  By pouring weight is meant the weight per unit volume of the powder when loosely poured out.  In one form nickel powder having a pouring weight of 0,9 kilogramme per litre is heated for 8 hours at 1000 DEG  C. in hydrogen, to form a body with a pore volume of 85 per cent.  The metal powders may be obtained by gaseous reduction of oxide at low temperature followed by comminution, or by thermal decomposition of volatile metal compounds, e.g. carbonyl or chloride.  The porous bodies may be used as filters or catalysts or, when prepared from iron or nickel, as electrodes for secondary elements with alkaline electrolytes.
Patent GB-310703-A (GB)
Title: Improvements in and relating to smoking pipes
IPC: A24F1/24
Filed: 1928-06-19
Abstract: 310,703. Olsson, A. H. June 19, 1928. Tobacco pipes.-In a pipe in which combustion proceeds from below upwards, a removable lid 7 is provided at the lower end of the bowl 1, a grating 9 is spaced from the lower part of the lid, and an opening is provided in the lid below the grating for lighting the pipe with the lid in position. As shown, the bowl 1 is integral with the stem 5 and is fitted with a tobacco receiving shell 2 perforated at 3.
Patent GB-1360769-A (GB)
Title: Purification of vanadium-containing tic1-4 by heating with tici-3, 0.33 aici-3
IPC: C01G23/02
Filed: 1973-04-13
Abstract: 1360769 Purification of vanadium-containing titanium tetrachloride BAYER AG 13 April 1973 [15 April 1972] 17835/73 Heading C1A In a process for the purification of vanadiumcontaining titanium tetrachloride, it is heated in the presence of a compound of the formula TiCl 3 .0À33AlCl 3  and the desired titanium tetrachloride separated by filtration or distillation. In the range of 2 to 15 g., TiCl 3 .0À33AlCl 3  is added to the crude titanium tetrachloride per gram of vanadium impurity calculated as VOCl 3 . The reaction mixture is heated preferably to the boiling point of the TiCl 4 . The vanadium impurity reacts with the TiCl 3 .0À33- AlCl 3  in about 1 minute at this temperature, forming an insoluble residue, and the TiCl 4  can be distilled yielding a pure product.
Patent GB-1533166-A (GB)
Title: Sheet delivery apparatus for rotary printing presses
IPC: B41F13/54
Filed: 1976-05-03
Abstract: 1533166 Stacking sheets HEIDELBERGER DRUCKMASCHINEN AG 3 May 1976 [26 Nov 1975] 17980/76 Heading B8R A gripper chain sheet delivery apparatus having an upwardly sloping straight run 7 and a horizontal run 8 over the sheet delivery pile 24 includes a curvilinear guide member 11 arranged beneath the straight upwardly sloping run. The guide may comprise laterally spaced strips, a single plate or a plurality of rows of axially spaced rollers. The strips and rollers may be adjustable laterally of the delivery path to ensure that they do not contact printed areas of sheets leaving impression cylinder 1. The strips may be adjustable longitudinally to vary the degree of curvature. The sheets may be braked prior to stacking by rollers 17.
Patent GB-705861-A (GB)
Title: A shaking device for layer and loose materials
IPC: E02D3/074
Filed: 1951-07-30
Abstract: 705,861. Vibrating materials. DEGEN, W. July 30, 1951 [July 31, 1950], No. 17987/51. Class 86 A shaking device for layer and loose materials, particularly an upper surface shaker, having means for setting up lateral oscillations of different amplitude at different points in its height, and having supplementary weighting means connected to the shaker at the region of minimum oscillation. In Fig. 1 a spherical load weight 9 is fastened to the casing 1 of the device at a point above the pressure plate 2' where the amplitude of lateral oscillations caused by rotation of an eccentric mass 6 is a minimum. In Fig. 2 an annular load weight 12 is attached to the zone of minimum oscillation by hangers 11 which permit the load weight 12 to swing freely in any direction in. relation to the body of the device. Four cables 17 secured at their upper ends to a fixed ring 16 and at their lower ends to the shaker at points 19 act against rolls 18 on the load weight 12 in such a manner that when the shaker tilts due to unevenness of the material being vibrated, the load weight swings in the opposite direction to re-right the shaker.
Patent GB-641864-A (GB)
Title: Improvements in or relating to bearing lubricating arrangements
IPC: F16N7/02
Filed: 1948-07-05
Abstract: 641,864. Lubricating. NEVILLE, S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 5, 1948, No. 18032. [Class 12 (iii)] In a bearing arrange ment for a vertical shafi 1 of a heavy rotor machine having a thrust bearing 4 and guide bearings 12, 13 an oil reservoir casing 5 surrounds the thrust bearing 4 and is sub divided into an inner compartment 10 and a radially outer compart. ment 9 by a vertica wall 8 which allows surplus oil from the compartment 10 tc overflow into the com. partment 9 from where it is gravity-fed througt pipes 16, 17 to the guide bearings 12, 13. The supply to compartment 10 is through a pipe 14 in the base of the compartment, and an outlet 15 is provided in the wall of the outer compartment 9. The supply through pipes 16, 17 to annular recesses 21 at the tops of the bearings 12, 13 may be controlled by valves 19, 20. Draining outlets are provided at the bases of the guide bearing housings. In a modification, a lower web of an extended portion of the reservoir casing is integrally connected with a guide bearing housing, and the oil supply pipe to this guide bearing is disposed within the casing between the web and base of the oil reservoir.
Patent GB-1159238-A (GB)
Title: Magnetic Switch
IPC: H01H36/00
Filed: 1968-04-17
Abstract: 1,159,238. Magnetic switches. LES FABRIQUES DE BALANCIERS REUNIES S.A. 17 April, 1968 [27 April, 1967], No. 18035/68. Heading H1N. A magnetic switch has one or more sealed magnetic reed contact units 10, 6 operable when a pole member 3 is moved to divert flux from a magnetic circuit which includes a permanent magnet 1. A fixed pole member 2 and the permanent magnet 1 are bridged by the member 3 in the position (Figs. 1 and 3, not shown) to which it is urged by a spring 5. Alternatively the spring may urge the member 3 to the position shown. The member 3 is pivoted at 4 or otherwise movably mounted.
Patent GB-770854-A (GB)
Title: Improvements in and relating to packing or sealing rings for relatively rotating parts
Inventor: PRINGLE JAMES MAITLAND
IPC: F16J15/32
Filed: 1955-06-23
Abstract: 770,854. Stuffing-box substitutes. BURTONWOOD ENGINEERING CO., Ltd. June 23, 1955, No. 18145/55. Class 122 (5). In a sealing ring comprising a sealing element having a radial flange 1 (Fig. 1) and an inclined flexible sealing lip 2 extending therefrom and surrounded by a garter spring 12, the spring is carried by a number of closely-spaced individual metal or like holders carried on an annular carrier wire 8 itself carried by hook-shaped wire formations held on or in the sealing element. The holders may be solid shoes having holes therethrough for both the garter spring 12 and the carrier wire 8, or they may be metal clips 9 as shown in Fig. 3 having a turned-over portion 13 at their outer ends to spring over the carrier wire and a larger turned-over portion 11 at their inner ends to house the garter spring, the space between the free edges of the portions 11, 13 being slightly less than the diameter of the garter spring which is thereby sprung in, and retained in, the clips. A continuous wire is bent in zig-zag fashion to forms ide-by-side portions 5 (Fig. 5), the alternate spaces between which are connected at the outer and inner ends by portions 6 and 7 respectively. The outer ends are bent over to form hooks to engage the rim of the radial flange 1 and the inner ends are bent upwardly to form loops for the carrier wire 8 on which the clips 9 are pivotally mounted between adjacent portions 5. The radial flange 1, which is enlarged at 3 and reinforced by an annular solid or hollow member 4 of metal, plastic or other suitable material, may be held between two retaining rings or clamped within a metal casing. Two or more sealing elements, either all facing the same way or some facing in opposite directions to others, may be used. Specification 689,193 is referred to.