baber/WOPTO huggingface dataset:
Patent GB-561216-A (GB)
Title: Improvements in or relating to milling, grinding, turning or other machine-tools
IPC: B24B47/10
Filed: 1942-10-05
Abstract: 561,216. Grinding. LORANT, H. J., and SADGER, A. Oct. 5, 1942, No. 13946. [Class 35] [Also in Groups XXII, XXIII and XXIV] In a machine tool such as a milling, turning, grinding, &c. machine of the kind in which the tool or work is driven by a belt change gear, the driven shaft of the belt gear may constitute selectively the primary or the secondary shaft of a, further change speed gear by which the tool &c. may be driven. The machine comprises a base 12 carrying a spindle head 16 which houses the upper pulley cone 28 and the toothed gearing 36, 38. An electric motor 20 is mounted on a platform 62 pivoted on a rod 68 rotatable in the base 12 and carrying a lever 78 for adjusting the vertical position of the motor and pulley cone 26 driven thereby when changing the belt from one pulley to another. The platform 62 is also adjustable axially along the rod 68 so that any of the lower pulleys may be connected by the belt to any of the upper pulleys. For angular adjustment of the platform the lever 78 is engaged with one of the arcuate series of holes 76, Fig. 2, in the base 12 and a short lever 80 attached to the rod 68 is thereby caused to engage the platform through a compression spring 92. The spring may be adjusted by a nut 90 to vary its opposition to the weight of the motor &c. about the pivot 68 and thus alter the belt tension. Axial adjustment of the platform is controlled by a spring plunger 97, Fig. 1, thereon engaging one of a series of annular grooves in the rod 68 and is indicated by a series of grooves in the rod adjacent the end of the platform. The pulley cone 28 may drive the tool or work holder 42 directly through the shaft 32, or for lower speeds the cone may be transferred to a shaft 35 carrying the pinion 38 engageable by a hand-operated yoke 40 with the gear 36 on the shaft 32 or the gears 36, 38 may be arranged selectively as a step up or step down gear. The rear end 19 of the spindle head 16 is hinged thereto to facilitate changing the belt and pulleys. Work &c. holders. The stationary work or tool is mounted on a table 56 angularly adjustable in a vertical plane about a pivot 58 carried by a slide 54 transversely adjustable on a longitudinal slide 52 which is supported by a saddle 50 vertically adjustable in a column 44 slidable horizontally in the bed 15. Worksupporting brackets may be mounted on the table 56. Lubricating cutting-tools and work. A pump 112, Fig. 1, driven by a separate electric motor 114 supplies water from a tank 108 by a pipe 116 to a delivering nozzle 120 on the head 16, the water connected by the trough-shaped bed 15 returning to the tank by a pipe 126.
Patent GB-497645-A (GB)
Title: Improvements in or relating to electron lenses
IPC: H01J29/66
Filed: 1937-05-20
Abstract: 497,645. Cathode-ray tubes. LUBSZYNSKI, H. G. May 20, 1937, No. 14013. [Class 39 (i)] An electron image from a photo cathode P is focused on to a mosaic electrode M by a frusto-conical electromagnet 4, which reduces the composite beam from the cathode P before it enters the field of a second focusing system ; this may be an electromagnet 5 or electrostatic means. The mosaic may be scanned by a beam from a gun G. The focusing means may be used in an electron telescope or microscope. Specification 442,666 is referred to.
Patent GB-1000203-A (GB)
Title: A device for controlling the web tension in a web of material
IPC: F16K31/52
Filed: 1964-04-06
Abstract: 1,000,203. Winding and unwinding webs. RAUSING & CRAFOORD A.B. April 6, 1964 [April 8, 1963], No. 14025/64. Heading B6B. In a mechanism for winding or unwinding a web to or from a web-roll 1, a clutch or braking device 2 is controlled by a pneumatic device 3. A pnuematic controller includes a pressure reducing valve 5, the output of which is controlled by an arm 7 detecting the diameter of the web-roll. A shaft 21, Fig. 2, movable axially against the diaphragm of a brown type of pressure reducing valve 5, is first adjusted with a screw-thread 11 with a knob 12 and a locking nut 13. A cam plate 23, pivoted dia metrically on pins 20, has its inclination set with a knob 16 threaded on to a shaft 15. The arm 7 is connected to the shaft 21, and has a cam follower roller 19 secured thereto. As the radius of the web roll varies, so the cam follower 19 follows the inclination of the cam plate 23, thereby altering the axial position of the shaft 21 and the output of the pressure reducing valve 5. The pressure reducing valve is provided with an auxiliary electromagnetically controlled valve which is adapted, when the supply of current ceases with web advance ceasing, to correct the pressure side of the pressure reducing valve with atmosphere, thereby preventing over-run of the web-roll.
Patent GB-705939-A (GB)
Title: Improvements in or relating to constructional elements and processes for the coatingthereof
IPC: C09D5/08
Filed: 1951-06-14
Abstract: An element of iron or steel coated with rust is coated with a wetting agent mixed with a drying agent.  The wetting agent may consist of a fatty acid such as lauric, myristic, oleic, ricinoleic, linoleic or linolenic acid or may be an alkyl ricinoleate.  The drying agents are drying oils or semi-drying oils which may be mixed with a resin. Linseed oil is specified.
Patent GB-495653-A (GB)
Title: Improvements in or relating to wall-plugs and the like fastenings
IPC: F16B13/06
Filed: 1937-05-21
Abstract: 495,653. Wall-plugs &c. DUNCAN, J. May 21, 1937, Nos. 14135 and 34831. [Class 89 (i)] A wall-plug or like fastening comprises a hollow, plug-like body 8 formed at its outer end with a recess 15 and at its inner end with expansible fingers 8a between radial slots 16 which extend longitudinally from the recess to the innermost end of the body, the bore of the latter being tapered to receive wedge means which expand the fingers 8a when moved by a bolt 10 or the like, the outer end of which is accommodated in the recess 15. The otherwise cylindrical bore may be formed with oppositely directed tapered surfaces 12, 14 adapted to be engaged, respectively, by a wedge 9 and a conical part 11 on the bolt, the wedge having one or more ribs 17 to engage the slots 16. The outer surface of the body 8 may be slightly tapered and may comprise a smooth outer portion 22 and an inner portion formed with annular buttress teeth 18 and longitudinal grooves 18a (not shown), the inner and outer portions being separated by an annular groove 19, or other zone of weakening, which facilitates outward expansion of the fingers 8a. One of the slots 16 may extend to the outermost end of the body 8. The latter may be flanged as at 23, whilst the bolt may be formed with a nut head 10b, for operation by a box key, and with a hold, such as a tapped hole 20, to receive a screw for attaching an external object to the wall-plug. Alternatively, a hook or the like may be provided on the body 8 or on the flange 23. The body 8 and bolt 10 may be made of steel and the wedge 9 of cast iron, or they may all be made of galvanized steel or phosphor bronze, whilst the teeth 18 may be case-hardened.
Patent GB-1215364-A (GB)
Title: Improvements in and relating to dust separation devices using fibre filter elements
IPC: B01D46/04
Filed: 1968-03-25
Abstract: 1,215,364. Cleaning gas-filters. INTENSIV FILTER G.m.b.H. 25 March, 1968 [30 March, 1967], No. 14255/68. Heading B1T. Fibre filter-tubes 16 are cleaned by simultaneously (i) applying a reverse flow of scavenging air from a source 29, flow being indicated by the arrows; (ii) allowing the thus increased pressure in chamber B to raise support-plate 17 in piston-fashion, thus stretching filter-tubes 16; (iii) causing pressure fluctuations in chamber A by control means 23, 24 so as to shake or vibrate plate 17 and therefore the tubes 16. As described, a flap 27 normally covers aperture 26 (Fig. 1, not shown) so that cleaned gas is sucked out through apertures 14, 14' and outlet 15. To initiate cleaning, flap 27 is swung into the position shown, preventing filtration flow and allowing backflow scavenging. Since chamber A is connected by tube 22 to suction source 15, and since chambers A, B are isolated from each other by sealing strips 18, plate 17 rises. Fig. 4 (not shown) illustrates a plurality of filter chambers having a common housing and suction chamber A.
Patent GB-790843-A (GB)
Title: Motion arrester
IPC: B64D1/14
Filed: 1956-05-08
Abstract: 790,843. Energy - absorbing elements. NATIONAL RESEARCH COUNCIL. May 8, 1956 [May 20, 1955], No. 14263/56. Class 103 (1). A device for producing a constant or otherwise controlled retarding force having no rebound characteristics after an article has been brought to rest consists of a sheet of material having a continuous smoothly curved groove 2 extending in regularly mutually spaced general coaxial convolutions, the depth of the groove in relation to the thickness and mechanical properties of the material being such that a continuous ribbon 5 may be torn from the sheet by a tensile force supportable by the ribbon; energy being dissipated in rupturing the material. Instead of the material comprising a disc 1, deeply scored with a spirally extending groove 2, set in the end of a cylindrical shockabsorber 3 of the type disclosed in Specification 790,844, as shown in Figs. 1 and 3, the invention may comprise a cylinder of metal provided with a helical groove such as illustrated in Fig. 4. In place of metal a synthetic material such as nylon or " Teflon " (Registered Trade Mark) may be used. The retarding force may be varied by making the groove progressively shallower or deeper in accordance with the desired characteristics. The arrester may be used as a safety device for retarding the motion of a falling body such that, combined with a harness, the device may be used for controlling the speed of descent of falling bodies.
Patent GB-475649-A (GB)
Title: Centrifugal governor
IPC: G05D13/08
Filed: 1936-05-21
Abstract: 475,649. Speed governors. MARTINOTTI, P. May 21, 1936, No. 14385. [Class 57] [Also in Group XXXIII] A speed governor particularly applicable for adjusting the pitch of screw propellers comprises resiliently loaded members 13 guided radially in members 12 and forming a liquid space 33 connected by a siphon 17 to a chamber 24 located in the rotary body 11. The chamber 24 is connected by a non-return valve 27 to a chamber 23 fitted with a resiliently loaded piston 18 connected to the member to be controlled. A float or weight 31 actuates slide valves 30 to close another connection between the chambers 23, 24 when the apparatus is inclined. The chamber 24 is fitted with a spring loaded piston 21. Variations in speed result in variations in pressure in the liquid in chamber 33 and consequent movement of the members 13 and variation of the volume of liquid in the chamber 23 which causes adjustment of the piston 18. A modification of the apparatus and shown as applied to varying the pitch of screw propellers is set out in Fig. 5. A member 37 is guided radially on a member 36 and the chamber 40 is connected by a siphon 41 to a chamber 39 fitted with a piston 42. The member 37 is loaded by a resilient device 38 abutting a member 43 guided in the member 37 and loaded by a resilient device 44. A curved lever 45 engages the member 43 and is connected by a link 47 to the boss 35 of the adjustable blade. Alternatively a resiliently loaded piston 49 is fitted in the member 43 and the lever 45 is connected to this piston. The resilient devices loading the various members may be springs or hermetically sealed chambers containing gas under pressure.
Patent GB-1276262-A (GB)
Title: Process for producing rubber crumbs
Inventor: BUCHHOLZ HUGO
IPC: C08C1/10
Filed: 1970-03-25
Abstract: 1276262 Rubber crumbs METALLGESELLSCHAFT AG 25 March 1970 [29 March 1969] 14447/70 Heading C3E Rubber crumbs are produced by a process in which an acid natural or synthetic rubber coagulum mixture is rendered alkaline by addition of an alkali metal hydroxide, the alkaline mixture is centrifuged. The resulting sediment is dried in a rotary drier in contact with hot gas which is inert to the rubber, the dried material is subjected to dust-removing treatment in a diffusion chamber and the dry product from which dust has been removed is comminuted to a maximum particle size of 3À0 mm. The coagulum in the coagulum mixture is preferably comminuted to a particle size below 10 mm. The content of coagulum in the mixture is preferably adjusted to be below 15% by weight, more preferably 10-12% by weight. The pH is preferably adjusted to be 7À5-9. The sediment formed in the centrifuge may be washed therein by rinsing with water. In the diffusion chamber the dry product is separated from the drying gas, which is exhausted by a suction blower and entrains the fire dust. This dust is removed from the exhausted drying gas in a cyclone and the gas is then recycled to a point which precedes the rotary dryer.
Patent GB-824228-A (GB)
Title: Improvements relating to programme control apparatus responsive to typewriters and like keyboard-operated machines
IPC: G06F15/08
Filed: 1956-05-10
Abstract: 824,228. Calculating-apparatus. DIRKS, G. Aug. 1, 1957 [May 10, 1956], No. 14497/56. Class 106 (1). [Also in Group XVI] The carriage of a typewriter or like machine, as it moves from one position to the next, generates a pulse 3 connected to a multi-element gas discharge counting tube 1 whose output lines 2/1-2/n are connected to a switching device 9 comprising a number of horizontal lines interconnected to a group of vertical lines 11/1-11/n, each connected to a second counting device 18. When a voltage occurs simultaneously from both counters, outputs 12/1-12/n, according to whether they have a connecting lead 13, have an increased potential which determines a series of functions in a data processing unit. The output lines 2 from the counter 1 are connected to three sets of plug sockets 6, 7 and 8 through isolating diodes 34. Plug wires 16 connect the circuits to a group of trigger circuits 17 in any desired sequence while plug wires 25 are connected to trigger circuits 23 which determine the potential of one of a group of output leads 22 which control selection of a particular track of a magnetic drum storage device. The plug sockets 8 may be connected in any desired sequence to input leads 26 of a comparison device 28 to which is also connected a further counter 30 which is pulse operated from a line 32. The counter 1 has a second pulse line 5 which causes subtraction in the counting tube 1. Specifications 786,021, 818,623 and 824,227 are referred to.
Patent GB-737167-A (GB)
Title: Improvements in hollow blades for fluid-flow operated machines
Inventor: ROSSKOPF HANS
IPC: F01D5/18
Filed: 1951-06-19
Abstract: 737,167. Turbine blades. OESTRICH, H. June 19, 1951, No. 14531/51. Class 110 (3). A hollow aerofoil section blade particularly for a gas turbine has a blade working portion 2, the wall thickness of which decreases towards the blade tip, and a central recess 5 in the lower face of the blade root, a pair of cooling fluid inlet bores 3, 4 extending from the recess to the hollow space within the blade working portion. The bores 3, 4 are inclined to the axis of the blade so that cooling fluid such as air impinges on the parts of the hollow space within the blade corresponding to the leading and trailing edges of the blade, the bore directing air to the leading edge being larger than the other bore. A cooling fluid guide 7. is disposed within the hollow blade to cause the fluid to flow near the blade surface, the guide having a root portion 8 mounted in a slot 6 extending between the bores 3, 4 in the blade root. The slot 6 may taper towards the blade tip or may be parallel sided, the guide 7 being retained in the slot by wedges 9, 10. Specification 737,166 is referred to.
Patent GB-702558-A (GB)
Title: Improvements in or relating to suspended folders or separator-plates for lateral entry filing drawers
IPC: B42F21/06
Filed: 1951-06-19
Abstract: 702,558. Filing papers. VINCENS, R. F. June 19, 1951 [June 19, 1950; Sept. 18, 1950; April 3, 1951], No. 14563/51. Classes 16 and 146(1) A suspended folder or separator plate, for a drawer in which files are inserted and removed laterally, has the front or entry edge of arcuate form. The files may rest on the bottoms of the drawer between the plates or the plates are interconnected by cradles at their bottom edges to form folders for the files. Each plate 31 consists of two layers 32, 33 of stiff paper folded along the upper edge 34 and cut away at 35, Fig. 1, or 51, 52, Fig. 5, to accommodate the suspension rails 36, a rod 37 being inserted in the fold 34 and lying over the rails 36. The two layers may be connected as by rivets 38, Fig. 1, or stitches 56, Fig. 5, and at the bottom by two pairs of rivets 39. 40 spaced as shown. The layer 32 is formed with an extension 47 narrower than the distance between units 39, 40 which is creased at 48 to form folds 49. The folds 49 are wound round a securing strip 50 which .is inserted between the pairs of rivets 39, 40 of the next plate, the extension 47 forming a cradle, the width of which can be varied.. As shown in Fig. 1. the rod 37 has a turned back front end and can be inserted from the front of the plate. As shown in Fig. 5, the rod 37 has turned down ends 57, 58 and to position the plate on the rails 36, the rod is pulled backwards to fill the cutout 51, and a notch 53 with splayed edges 54 assists re-entry into the fold 54, forward movement being limited by a wire stitch 59. The plate 31 may be reinforced, as by a glued cardboard strip 62 between the layers 32, 33, and the extension 47 may be dispensed with. and the lower edges turned back to form hems to be connected in the rivets 39. 40, a separate cradle being fixed to two adjacent plates by two strips 50, which may be shorter than the distance between the rivets and held in one of the hems. As shown in Fig. 8, the weight of the files may be transferred to the rod 37 by means of metal strips 65 having an upper hook 66 over the rod 37 and a hook 67 with a clip 68 to receive: the securing strips 50. For use when separate cradles are used, so that strips: 50.are required at each end thereof, the hook 66 is extended to form a double hook at the bottom, similar to 67. Tabs. As shown in Fig. 1, the arcuate front edge of the plate is provided with an arcuate label holder 43 which is secured by inturned lugs 44 over an arcuate strip 42 secured at 41 between the layers 32, 33. A lug 46 on the holder 43 guides the holder along the edge of layer 32. As. shown in Fig. 5, the arcuate label holder 43 is secured to an arm 60 which is pivotedbetween the layers 32, 33 at 61, the centre of the arc of the edge. The holder 43 may be offset from the arm to show more clearly to which files its information relates.
Patent GB-520523-A (GB)
Title: Improvements relating to the production of moulded articles
IPC: E04H9/10
Filed: 1938-10-13
Abstract: 520,523. Moulds for concrete. SMITH, W.H. Oct. 13, 1938, No. 14621/39. Divided out of 520,326, [Group X]. [Class 87 (ii)] Curved concrete members for building air-raid shelters &c. are moulded between similarly shaped mould walls 1 arranged on edge upon a base 2, the walls comprising curved metal sheets with spacing members 8 associated therewith. The walls 1 have flanges 12 which form flanges on the moulded articles, and pins 11, secured at the bases of the flanges 12, form bolt holes in the moulded articles. The members 8 act as the end walls of the mould cavities, the members 8 at the ends of a wall 1 being secured to opposite sides thereof. Pins 9 on the members 8 pass through holes in the walls 1 so that the nest of mould walls may be secured together by nuts 10. Alternatively, the walls may be secured together by cotter pins passing through slots in lugs which replace the pins 9. A core 13 is secured to each wall 1 to form channel-shaped recesses in the moulded articles. The innermost wall 1 is secured to the base 2 by a number of brackets 14, and the whole of the walls 1 are secured to the base by clamps 17 and bolts 18. The clamps 17 carry pins 19 which are secured to the base 2, and form bolt holes through the walls of the recesses in the moulded articles.
Patent GB-1315372-A (GB)
Title: Refractory material articles and method of making them
IPC: B28B3/00
Filed: 1970-03-26
Abstract: 1315372 Hot pressing powders UNION CARBIDE CORP 26 March 1970 [26 March 1969] 14639/70 Heading B5A [Also in Divisions C1 and C7] Refractory metals and ceramics are hot pressed by charging the refractory as a powder or preformed compact into a series of cavities 24, 26, 28 in a compressible anisotropic graphite die 22 which is formed of graphite expanded by at least a factor of 80 in the " C " crystallographic axis. The pressure is applied via plungers 14, 16 parallel to the " C " axis of the graphite. A series of graphite dies 32 may be stacked with intermediate spacers 34 between each die and hot pressing effected at 1350 degrees minimum and 1500 p.s.i. minimum using induction coil 30 and mould 12. The refractory material may be a boride, carbide, nitride or oxide of Ti, Zr, Ta or B, e.g. TiB 2 , Al 2 O 3 , WC, B 4 C, WC - 6Co, TaC+TiB 2 , TiC + TiB 2 , ZrB 2 +TaN.
Patent GB-182643-A (GB)
Title: Improvements relating to drop hammers
IPC: B21J7/36
Filed: 1921-05-26
Abstract: 182,643. Brett, B., and Bretts Patent Lifter Co., Ltd. May 26, 1921. Operating clutches. - The friction clutch of drop hammers of the type described in Specifications 25878/13, [Class 83 (iv), Metals, working], and 102,668, is actuated by a lever connected to a double cable a provided on the part that encircles a collar on the rotating shaft with blocks e secured by bolts f and faced with non-metallic friction material g.