baber/WOPTO huggingface dataset:
Patent GB-485022-A (GB)
Title: Improvements in duplicating machines
IPC: B41L11/00
Filed: 1936-12-24
Abstract: 485,022. Duplicating-machines. DITTO, Inc. Dec. 24, 1936, No. 35403. Convention date, Jan. 10. [Class 100 (ii)] Copying documents; gripper mechanism; tripping-arrangements.-A mirror-script duplicating-machine of the kind described in Specification 472,869 in which a rotary drum carrying the script can be stopped in one position for receiving copy sheets and in another position to receive a new master sheet is constructed with means for holding the master sheet in position when the grippers which normally hold it are in the opened position, so that a block sheet may be inserted in-the gripping means without displacement of the master sheet thus enabling part of the impression to be masked. The drum 18 is driven intermittently bv a rotating ratchet and a pawl 35 associated with tripping and latch devices 42, 50 and 75, 76 for holding the drum in positions to receive the sheet to be printed and the master sheet all as described in the prior Specification. The means for holding the master sheets while a block sheet is inserted may be associated with the master sheet tray 20 which is formed with spring fingers 121 on its underside which are adapted to grip a master sheet when the grippers 111, Fig. 5, are open, and thus allow insertion of a block sheet 126. The tray is biassed towards the drum 18 by means of a spring 117 which tends to turn the tray on its pivot 116, and normally the tray is raised clear of the drum by means of a cam 92 on the shaft 24 of the tripping device 75, acting on a stop 122 on a bar 123 secured to the tray 20. When it is desired to insert a block sheet the lever 96 which operates the gripper cams 99, 100, is moved far enough to stop the drum with the grippers 111 of the master sheet in a position to receive a sheet, but the grippers are not opened. The cam 92 permits the tray to fall and a disc 124 on the tray keeps the spring fingers 121 away from the drum until the disc is received in a notch 125 in the drum, when the fingers close on the sheet. The lever 96 is then moved to the position shown in Fig. 5, and the cam 100 opens the grippers 111 to permit the block sheet to be inserted over the master sheet. On moving the lever 96 over to the right the drum is rotated to the position to receive the sheets to be printed, and it is held in this position by the trip and latch devices 42, 50. In a modification, Fig. 9, the cam 92 is dispensed with and the pivotal movements of the tray 20 controlled by a cam bar 130 pivoted to the lever 96 and controlled by a fixed pin 132 and a slot 131. A pin 133 on the tray is in constant engagement with the cam 130. A spring-latch device may be provided for locking the tray 20 in its raised position when it is desired to make a few copies from a master sheet, and save the master for future use. In a further modification, a portion 145, Fig. 14, of the side wall of the tray 20 is extended downwardly so as to engage a pin 146 upon a projection 147 integral with a lever arm 90 on the shaft 74 of the tripping lever 75.
Patent GB-367837-A (GB)
Title: An improved suspension or supporting devico for electrical measuring apparatus, more especially meters
IPC: F16F1/42
Filed: 1930-11-25
Abstract: 367,837. Indiarubber springs. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Nov. 25, 1930, No. 35433. Convention date, Dec. 10, 1929. [Class 108 (iii).] Supports for meters and other apparatus are subjected to shear and consist of rods 1, Figs. 2 and 3, of indiarubber formed with flanges 2, 3 which are gripped between discs 4, 12 and plates 9,15 by bolts 7,16. The plate 9 is in two parts with flanges 11 and between the plate and the rubber flange 3 are interposed segments 8 having their junction at right-angles to that of the segments 9. Similar segmental plates 14, 15 co-operate with the flanged disc 12 to grip the rubber flange 2. The disc 4 may be fastened to a wall 6, the flanged disc 12 being attached to the meter casing or other element by a nut 19. The flanges 2, 3 of the rod 1 may be dispensed with, the fastening means engaging the rod in the manner of a strap or clip:
Patent GB-496779-A (GB)
Title: A process for removing naphthenic acids from mineral lubricating oils or lubricating oil fractions
IPC: C10G19/00
Filed: 1937-12-23
Abstract: Mineral lubricating-oils or fractions thereof are freed from naphthenic acids by contacting the oil vapours at a temperature above 300 DEG  C. with a catalyst of high porosity and selected from the following, lithium hydroxide, carbonate, or phosphate; sodium hydroxide or carbonate; potassium carbonate; beryllium oxide or carbonate; magnesite, magnesium hydroxide or carbonate; calcium oxide, hydroxide, or carbonate; strontium carbonate; barium oxide or carbonate; aluminium oxide or hydroxide; chromium sesquioxide; manganous oxide, or carbonate; iron; ferrous oxide or carbonate; ferric oxide or hydroxide; cobaltous oxide or carbonate; nickel oxide or carbonate; zinc, zinc oxide or carbonate; silica; titanium dioxide; zirconium oxide; stannic oxide; thorium oxide; cerium dioxide; uranium trioxide; bismuth trioxide.  The process destroys the carboxylic group, or converts it into a non-acidic group.  The compounds may be prepared in the highly porous form by (1) calcining the salts of carboxylic acids; (2) briquetting the metal compound with a substance subsequently removed by heating for example, naphthalene, and ammonium carbonate; (3) suspending the metal compound on a carrier such as asbestos or silica, for example highly porous soda lime is obtained by burning lime slaked with caustic soda.  Small amounts of activators may be added.  The oil vapours may be mixed with steam or other inert gas, and low pressures may be used.  In an example, a crude lubricating oil distillate containing naphthenic acids, is vaporized and is passed with steam over granulated lithium carbonate at 400 DEG  C.  The resulting oil vapours are condensed to yield an oil of the same boiling range as the original oil and of negligible acid value.
Patent GB-833925-A (GB)
Title: A process and apparatus for the vacuum treatment of steel or steel alloy
IPC: C21C7/10
Filed: 1957-11-19
Abstract: 833,925. Vacuum degassing. BOCHUMER VEREIN FUR GUSSSTAHLFABRIKATION A. G. Nov. 19, 1957 [Dec. 12, 1956], No. 36023/57. Class 72 [Also in Group XXII] Steel is vacuum treated by allowing it to fall through a plurality of stages at different pressures. In an upper stage at a pressure between 10 and 500 mm. Hg it is heated by an electric arc and then conveyed in vacuo to a lower stage at a pressure between 5 and 10<SP>-3</SP> mm. Hg. As shown (Fig. 1) steel may flow from ladle 1 between electrodes 10<SP>11</SP>, 11<SP>11</SP> and 10<SP>1</SP>, 11<SP>1</SP>, divergence of the stream being restricted by current in coil 25, accumulates in vessel 14 so as to form a seal between vacuum chambers 4 and 6, being heated by arcs 10, 11 and 12, and then flow into the empty ladle below. In a modification (Fig. 3), the metal may be treated with desulphurizing or dephosphorizing agents in a small electric furnace with a hearth 17, additions being made to the metal under the arcs by an airlock device 21<SP>1</SP> or to the metal, separated from the arcs by a partition wall 18, by device 21. The metal flows into intermediate vessel 14 and then into a ladle or a continuous casting device 30 with air locks 32, 33, 34. In another modification (Fig. 4, not shown) the metal flows through an outlet in the hearth the rate of flow being restricted by current in a coil around the outlet which produces eddy currents in the liquid steel. A further modification includes three vacuum chambers in two of which there are arc furnaces the out-flow from which is controlled by the eddy current method.
Patent GB-337238-A (GB)
Title: Improvements in or relating to distributing cocks
IPC: F16K31/58
Filed: 1929-11-25
Abstract: 337,238. Martini, G. Nov. 25, 1929. Lift valves.-A spoutactuated screw - action distributing cock comprises a screw-threaded pipe end, such as g, an externally - tapered valve seating ring, as d, an internally-tapered and screwed sleeve e securing the seating ring in position, a spout member c screwed on the sleeve e, and a conical valve member a carried by an apertured disc b and supported against the seating ring d in the closed position by the spout member c. A set screw i enters a recess h in the spout member to prevent it from leaving the sleeve e in the open position of the cock. the recess h is made of circular, polygonal, or mixed section to receive a wrench for screwing and uuscrewing.
Patent GB-752650-A (GB)
Title: Carton collapsing machine
IPC: B31B50/56
Filed: 1954-12-14
Abstract: 752,650. Endless conveyers. PACKAGE MACHINERY CO. Dec. 14, 1954 [April 27, 1954], No. 36120/54. Class 78 (1). [Also in Group XVII] Collapsed cartons C are fed from a collapsing machine (see Group XVII) into the path of belts 124, 125 by a reciprocating pusher 90, the belts each consisting of flexible segments 145 joined by rivets 146, the serrations formed by the segments gripping the edges of the cartons.
Patent GB-1479186-A (GB)
Title: Inking device for use in printing
IPC: B41F31/06
Filed: 1974-08-16
Abstract: 1479186 Metering high-viscosity inks TEXOGESA SA 16 Aug 1974 [28 Aug 1973 31 July 1974] 36128/74 Heading B6C An inking device for a gravure press comprises a flexible-surfaced inking roller 5 which co-operates with an engraved plate cylinder 1, Fig. 1, an ink reservoir 14, Fig. 3, and a small diameter rod 11 which is driven in the same direction of rotation as the inking roller to provide a wiping action as it is impressed into the surface of roller 5 by body 9 having a groove 10 in its front face 9a and acted on by adjustable screws 15 bearing against the back 9b. The rod 11 is rotated by variable-speed electric motor (27), Fig. 2 (not shown), and may also be longitudinally reciprocated. The inking device is designed to be used with nigh-viscosity inks, i.e. inks having a dynamic viscosity between 50 and 100 poise and which are thixotropic.
Patent GB-619395-A (GB)
Title: Preparation of difluoroethane
IPC: C07C17/08
Filed: 1946-12-06
Abstract: 1,1-Difluorethane is prepared by reacting acetylene with hydrogen fluoride under substantially anhydrous conditions in the presence of boron trifluoride.  Temperatures may be -50 DEG  to 300 DEG , preferably 0 DEG  to 100 DEG  C., and pressures atmospheric up to 200, preferably below 150 p.s.i.  In the vapour phase reaction, atmospheric pressure and 20-100 DEG  C. is normally used.  For liquid phase, 0-30 DEG  C. and a pressure of 5-150, preferably 10-75 p.s.i. above the vapour pressure of the liquid phase, should be used.  The amount of boron fluoride should be at least 1, and may be up to 100, but is preferably about 10 per cent by weight of the hydrogen fluoride.  Inert diluents may be present.  The hydrogen fluoride should not contain more than 5 and preferably less than 1 per cent by weight of water.  In examples: (1) acetylene and boron fluoride gases are bubbled into the base of a steel wool packed column containing hydrogen fluoride and boron fluoride at 8 DEG  C., and fitted with a condenser at - 20 DEG  C., to give a contact time of 37 secs.  The gases are passed over soda lime and condensed; (2) the reactor of (1) is itself held at - 20 DEG  C. and contact time is 45 secs.; (3) gaseous acetylene and boron fluoride, and liquid hydrogen fluoride are passed into a horizontal reactor at 22 DEG  C. and 73-77 p.s.i. to give a contact time of 20 secs.; (4) hydrogen fluoride containing 30.1 per cent of boron fluoride at 0 DEG  C. is treated with acetylene to keep the pressure at 100 p.s.i. for 2 hrs.; (5) to (7) gaseous mixtures of the reactants are treated at 70 DEG , 50 DEG  and 200 DEG  C. with contact times of 51, 120 and 240 secs. respectively.
Patent GB-338736-A (GB)
Title: Improvements in and relating to foot-operated hinged covers
IPC: A47K13/10
Filed: 1929-11-26
Abstract: 338,736. Mandler, L. Sept. 24, 1929, [Convention date]. No Patent granted (Sealing fee not paid). Lids and covers.-A foot-operated device alternately raises and lowers with softened impact hinged box covers &c. on successive depressions of the pedal, to which the cover is connected by spring-loaded lever mechanism. A member 1 consists of two superposed and rigidly connected plates one of which is pivoted at 2 to a supporting frame 24 and is rigidly connected to a slotted lever 3 engaging a pin on the cover. The other plate of the member 1 is provided with a slot 4 in which engages a roller 6 on a link bar 5 connected to a spring- loaded pedal 9, on depression of which the pivoted member 1 is turned through about 90‹. On release of the pedal, the link bar is drawn to the bottom of the slot 4 so that the next depression of the pedal restores the member 1 and the lever 3 to their former positions, thus lowering the cover. A bell-crank lever 13, 14, pivoted at 12 to the member 1 is provided with two stops 15 which limit the movement of the member 1 and soften the impact of the cover by striking in each extreme position of the pivoted member a rubber buffer 17 fixed to the supporting frame. A tension spring 19 for braking the acceleration of the fall is also provided.
Patent GB-1515751-A (GB)
Title: Control circuit arrangements
IPC: B60L50/11
Filed: 1975-09-03
Abstract: 1515751 Control of D.C. motors MARCONI CO Ltd 12 July 1976 [3 Sept 1975] 36193/75 Heading H2J A control arrangement in which a plurality of D.C. energy sources, e.g. batteries are connectable in series or in parallel across a reversible load, e.g. the armature of a motor, or in which a plurality of reversible loads are connectable in series or in parallel across a D.C. energy source, the connection configuration being controlled by means including triggerable unilaterally conductive devices, e.g. thyristors, provided in paths connecting the load(s) and source(s), and energy storage means, e.g. a capacitor, being provided to supply, in operation, energy to the load or loads during periods in which the state of conduction of one or more of the paths is being charged and the triggerable unilaterally conductive device or devices therein are subject to reverse bias as the connection configuration is changed. As shown in Fig. 3, two armatures M1, M2 of a twin-armatured motor are connected across a battery B, thyristors S1-S10, the energy storage capacitor C and inductor L being connected in this circuit. The armatures may be connected for "series forward", "series reverse", "parallel forward" and "parallel reverse" drive by triggering different combinations of the thyristors S1-S8, as discussed with reference to Figs. 4 and 5 (not shown). Additionally, thyristors S9 and S10 may be switched on and off together to control the mean current flowing in the armatures M1, M2. As shown in Fig. 7, two batteries B1, B2 are connected across the armature M of a motor, thyristors S1-S12, the energy storage capacitor C, and an inductor L being connected in this circuit. The batteries may be connected either in series or in parallel and may be connected to drive the motor forward or in reverse by triggering different combinations of thyristors S1-S8, as discussed with reference to Figs. 8 and 9 (not shown). Additionally, thyristors S9-S12 may be triggered on and off to control the mean current flowing in the armature M. Modifications of Fig. 3 are described with reference to Figs. 10, 11 and 12 (not shown). In these modifications diodes are connected in anti-parallel with the thyristors, and an alternative arrangement of the inductor is shown. A modification of Fig. 7 is described with reference to Figs. 13 and 14 (not shown). In this modification, diodes are connected in antiparallel with thyristors S1, S2, S7, S8, S9 and S10.
Patent GB-1523406-A (GB)
Title: Ventilator
IPC: F24F7/02
Filed: 1977-07-29
Abstract: 1523406 Ventilators A MARQUEZ 29 July 1977 [2 Sept 1976] 36301/76 Heading F4V A ventilator comprises a cylinder 12, a cowl 14 mounted across one end of the cylinder 12 and a rotatable shaft 18 carrying both a fan 19 within the cylinder 12 and a wind-drivable propeller 20 outside the cowl 14. The shaft 18 is mounted by bearings 16.
Patent GB-979000-A (GB)
Title: Improvements in or relating to travelling cranes
Inventor: SOAN BRIAN SPENCER
IPC: B66C19/00
Filed: 1961-10-10
Abstract: 979,000. Travelling cranes. KINS DEVELOPMENT Ltd. Oct. 2, 1962 [Oct. 10, 1961], No. 36321/61. Heading B8B. In a travelling crane the bridge 1, Fig. 1, is attached to one of the end supports by a pivot 4 so that irregularities in the track do not produce torsional stresses in the bridge. The end 5 of the bridge fits into a slot in the end 2 to restrict undesirable movement. In a second embodiment, Fig. 2, a bridge 10 is supported on a trolley 11 by a shear-weak rubber bearing 12 and connected to the trolley by pivoted links 14. In a third embodiment, Fig. 3, a bridge 20 is rigidly connected to end members comprising legs 21, 22. The legs of one end member are connected to bogies 23 by links 24 which ensure that rotation of the bridge occurs about a virtual centre 25 which lies above the centre of gravity 27 thereby maintaining stability. The legs of the other end member may be attached to the bogies either rigidly or by simple pivots. The bogies 23 may be joined together rigidly or by a pivoted link 28. Damping devices may be provided on all the embodiments to counter oscillatory motion of the bridge in torsion. Specification 921,052 is referred to.
Patent GB-978742-A (GB)
Title: A new or improved apparatus for furnishing information as to position of objects
Inventor: KAY LESLIE
IPC: G01S13/32
Filed: 1959-11-27
Abstract: 978,742. Direction-finding and echo ranging by radio and sound waves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 27, 1961 [Nov. 27, 1959], No. 36480/64. Divided out of 978,741. Heading H4D. The disclosure is that of Specification 978,741 together with the alternative use of radio waves and with an alternative indication of echo range and bearing by cathode-ray tube; the claims are directed to the direction-finding aspect. The beat frequency audio signals corresponding to the two spaced receivers are applied to a modulator 38 affording sum- and difference-frequencies; unit 39 incorporates a bank of filters covering the sum-frequency band and a cathode-ray tube having a time base synchronized with the sampling of the filters to afford a range display. Unit 40 is similarly arranged for the difference-frequencies and affords a bearing display. A single, type B, display may be arranged.
Patent GB-1012864-A (GB)
Title: Magnetic head
IPC: G11B5/187
Filed: 1963-09-17
Abstract: 1,012,864. Magnetic recording &c. heads. SONY CORPORATION. Sept. 17, 1963 [Sept. 17, 1962], No. 36566/63. Drawings to Specification. Heading G5R. The magnetic recording head is the same as that described in Specification 986,543, but the claims differ.
Patent GB-368010-A (GB)
Abstract: 368,010. Plugging furnace tapping holes. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, Germany. Jan. 22, 1931, No. 2202. Convention date, Oct. 28, 1930. [Class 51 (ii).] A clay gun for use in stopping furnace tapping holes is swung into position with a parallel motion movement and is at the same time automatically adjusted to the required angle. The gun is suspended by rods f, g from a cross-bar e connected bv a universal joint to a shaft 2 mounted in bearings 3, 3<1> on an arm arranged to swivel on a vertical pillar 1. The rods f, g pass through slots in one member d of a'parallel motion linkwork a .. d, and the tilting adjustment is effected by a crank pin 5 on the shaft 2 moving in an inclined slot in a curved plate 7. The plate 7 and the fixed member a of the linkwork may be adjustable.
Patent GB-821350-A (GB)
Title: Steam-heated air heating apparatus
Inventor: HENLEY JOHN ALLAN
IPC: F28D1/053
Filed: 1956-12-03
Abstract: 821,350. Heating air. WELLINGTON TUBE WORKS Ltd. Nov. 21, 1957 [Dec. 3, 1956], No. 36848/56. Class 64(3) Apparatus in which air is heated in flowing over an assembly of tubes through which steam is passed, comprises a principal heat exchanger having aluminium or copper tubes e, series-connected to an auxiliary heat exchanger having steel tubes a. In operation; superheated steam is passed through the steel tubes a of the ancillary heat exchanger and is thereby cooled to a temperature at which it may be safely passed through the aluminium or copper tubes e of the ancillary heat exchanger.
Patent GB-859080-A (GB)
Title: Improvements in gum plastic material
IPC: C08L25/16
Filed: 1959-10-30
Abstract: A thermoplastic composition comprises from 68% to 85% of (A) a resinous copolymer of 65 to 75% of alpha-methyl styrene and 35 to 25% of acrylonitrile and (B) 32 to 15% of (B) a graft copolymer made by copolymerizing from 50 to 40 parts (per 100 parts of graft copolymer) of a mixture of styrene and acrylonitrile in an aqueous emulsion containing 50 to 60 parts of polybutadiene, the ratio of styrene to acrylonitrile being from 65:35 to 75:25 and a part or all of the styrene being replaceable by alpha-methyl styrene.  The above composition may be blended with a separately prepared mixture of from 5 to 10 parts of a rubbery butadiene-acrylonitrile copolymer rubber and 2 to 3 parts of carbon black, the amount of mixture used being sufficient to provide 2 to 3% of carbon black in the total blend. The compositions are used for making pipes.
Patent GB-1030523-A (GB)
Title: Method of multi-component spinning
IPC: B29C48/18
Filed: 1964-09-09
Abstract: 1,030,523. Conjugate filaments. MONSANTO CO. Sept. 9, 1964 [Sept. 9, 1963], No. 36921/64. Heading B5B. In a process for spinning multi-component filaments having a predetermined and controllable ratio of component distribution. A multicomponent stream of spinnable, unblended components arranged in a predetermined pattern is generated, and the stream is conveyed to a remotely positioned spinneret having an orifice pattern of predetermined geometric correspondence with the pattern of the stream, whereby the line of demarcation between two adjacent components is caused to intersect a chosen group of orifices at a predetermined position to thereby extrude a plurality of multi-component filaments. The components of the stream of solution or melt may differ on physical or chemical properties, or in colour. The components of the stream may be arranged in a pattern of e.g. concentric rings or in parallel layers. In one embodiment (Fig. 1, not shown) a pipe-in-pipe mixer 10 comprises a plurality of mixing stages or elements 12, each element consisting of two inlets 14, 16 communicating with common outlets 18. Solutions or melts A and B are fed into chamber 20 through inlets 14 and 16 respectively under conditions assuring laminar flow. The resulting composite stream is surrounded by a further inflow of solution or melt A, and the resulting multi-component stream, in the form of concentric rings of A and B is extruded through orifices 24 of spinneret plate 22, which may be located five feet or more from the patterned stream generator. The ratio of components A and B extruded through each orifice may be varied, permanently or cyclically, by varying the relative pumping rates of A and B or by varying the correspondence between the geometries of the stream pattern and of the orifices. The configuration and direction of the conduit carrying the multi-component stream may be non- linear provided laminar flow of the stream is maintained. In a further embodiment only one mixing stage is used, the resulting composite stream consisting of a core A surrounded by a sheath B. In examples, self-crimping sideby-side bi-component filaments are formed from multi-component, streams comprising concentric rings of pigmented and unpigmented solutions of acrylic polymer in dimethyl acetamide.