baber/WOPTO huggingface dataset:
Patent GB-1092761-A (GB)
Title: Recovery of urea from off-gases from the synthesis of melamine from urea in the gas phase which have been freed from melamine
Inventor: HAMPRECHT GUENTHER
IPC: C07C273/16
Filed: 1965-03-26
Abstract: Urea is recovered from the off-gas obtained in a melamine sythesis from urea in the gas phase and in the presence of catalysts and which has been freed from melamine by fractional condensation at from 150 DEG  to 200 DEG  C., by bringing said off-gas into intimate contact with a melt of urea or a melt of urea and its thermal decomposition products, both of which are kept up to 50 DEG  C. above their melting temperature. Thermal decomposition products which may be present in the urea melt are biuret, triuret, cyanuric acid, ammeline, ammelide, melamine or melamine cyanurate.  The presence of 20-25% biuret (obtained by blowing with CO2) is preferred, since this depresses the melting point and allows a very cool melt to be used.  Portions of the melt are preferably drawn off after use and passed to the melamine synthesis reactor.
Patent GB-1499487-A (GB)
Title: Roll-type electrical capacitors
IPC: H01G9/008
Filed: 1976-03-31
Abstract: The housing (1) of the wound capacitor has a central pin (3) to which one of the electrode connections (5) of the winding (2) is welded. The other electrode connection (6) of the winding (2) is connected to an external connecting wire (9) which is passed through the disc (7), while the other connecting wire (10) is attached to the base of the housing (1). The invention is particularly suitable for incorporation in electrolytic capacitors. <IMAGE>
Patent GB-1455540-A (GB)
Title: Apparatus for coating web-form substrates with liquid solution or dispersions
IPC: B05C5/02
Filed: 1975-03-27
Abstract: 1455540 Coating webs AGFA-GEVAERT AG 27 March 1975 [11 April 1974] 12905/75 Heading D1L In the coating of a web 1, supported on roller 2, with photographic emulsion 5 from block 3, the thickness of the applied coating is controlled by the edge of member 7 integral with pivotally mounted block 4, the gap a between the edge and the web being determined by a block 10 located in recess 9 of block 4 and bearing on fixed block 3 at 11. The chamber 8, beneath the member 7, operates at reduced pressure.
Patent GB-432708-A (GB)
Title: Improvements in grinding mills
IPC: B02C4/22
Filed: 1935-05-01
Abstract: 432,708. Roller - and - breast mills. LEHMANN, F. B., (trading as LEHMANN, J. M., [Firm of]), 108, Freiberger Strasse, Dresden, Germany. May 1, 1935, No. 12968. Convention date, May 17, 1934. [Class 59] In a roller-and-breast mill the radius of curvature of the grinding surface of the breastbar 1 is greater than the radius of the co-operating roller 11 and the bar is rocked transversely to the axis of the roll by gear 2. The gear 2 may be an eccentric driven by the slow roll 4 and connected by arms 5 to the bar 1 which is supported at its ends in guides on a bridge-member 6. The bridge-member houses springs 9, adjustable by screws 13, each spring acting by means of a plunger 8, on a roller 10 mounted on the bar.
Patent GB-762227-A (GB)
Title: Toothed expanding head for rock anchor-bolts
IPC: E21D21/00
Filed: 1954-05-05
Abstract: 762,227. Anchor-bolts. GUTEHOFFNUNGSHUTTE STERKRADE AKT.-GES. May 5, 1954 [May 26, 1953], No. 13078/54. Class 89 (1). The expansible-head of a rock anchor-bolt 14 for mine-roofs &c., comprises teeth 6 of which the flanks 5, to which the load on the bolt is applied, are inclined to the axis of the bolt at a smaller angle than flanks 4, and hence have a larger area for supporting the bolt in the rock. The head is expanded against the wall of the hole receiving the bolt by a wedge 2 driven into a slot 2a in the head.
Patent GB-240096-A (GB)
Title: Improvements in doctors for calender rolls
IPC: D21G3/02
Filed: 1925-05-20
Abstract: 240,096. Dehn, F. B., (Dill & Collins Co.). May 20, 1925. Calendering. - A doctor for calender rolls comprises a cleaning pad 36 of felt or other suitable material held between spring clips 39, 41 on a bar 21 mounted by bolts 25 on arms 5 pivoted at 12 to the frame 1. Springs 15 on bolts 12 press the cleaning-pad against the calender roll 2 and a catch 52, engaging a projection 53 on the frame can be used to hold the doctor in the inoperative position.
Patent GB-495435-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H01J35/26
Filed: 1937-05-08
Abstract: An alloy for making the ball bearings of the rotary anode of an X-ray tube has a Rockwell C hardness of at least 55 and preferably between 60 and 65 units and an analysis of approximately 0,77 per cent of carbon, 18,5 per cent of tungsten, 4,52 per cent of chromium, 1,75 per cent of vanadium, 1 per cent of molybdenum, 9 per cent of cobalt, and the remainder iron.
Patent GB-988432-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/00
Filed: 1963-04-03
Abstract: 988,432. Tobacco pipes. R. A. KEIR, and P KEIR, [trading as B.M.P. TRADING CO.]. March 25, 1964 [April 3, 1963; Feb. 17, 1964], Nos. 13242/63 and 6520/64. Heading A2M. A detachable bowl 1 adapted to be secured to a metallic stem by a screwthreaded connection to form a 'tobacco pipe has a metallic ring 5 having an externally screw-threaded portion 9 of reduced diameter for engagement with the stem secured to the bowl by a clinching operation. The bowl 1 may be made of meerschaum and during clinching a number of indentations 10 may be made in the ring 5 to assist in securing it to the bowl 1. An epoxy-resin cement may also, be used between the ring and the bowl. The ring may be turned in slightly at 7.
Patent GB-131150-A (GB)
Title: Improvements in or connected with Displaying or Advertising Apparatus.
Inventor: CLEGG JAMES HOLLINGSWORTH
IPC: G09F13/44
Filed: 1918-08-15
Abstract: 131,150. Clegg, J. H. Aug. 15, 1918. Rotary appara,tus, internally illuminated; moving and changing apparatus.-Relates to means for intermittingly illuminating displaying or advertising devices, either stationary or of the rotating-drum type, in which latter case the device may actuate the drum. The apparatus comprises a bellows to the upper movable member 1 of which is fixed a valvular apparatus to and from which inlet and outlet pipes 12, 13 lead. The inner ends of these pipes 12, 13 are adapted to be closed by valves 14, 15 against which a ball 11 bears. The ball 11 rolls along track bars 10 against one or the other of the valves 14, 15 according to the inclination of the bars 10, which is determined by the full or empty state of the bellows. Thus, as shown in Fig. 2, the valve 14 has fallen open by gravity to allow gas to enter and fill the bellows, and the ball 11 has rolled to close the valve 15 to cut off the gas from the burner. As the bellows fills, the member 1 rises and the inclination of the bars 10 is reversed, the ball 11 rolling down and opening the valve 15 and closing the valve 14. The valve 15 is furnished with a tail 16 for direct action by the ball 11, and the valve 14 may be similarly fitted. A by-pass, which may be provided from the bellows, lights the gas issuing at the burner
Patent GB-311928-A (GB)
Title: Dental flasks
IPC: A61C13/16
Filed: 1928-05-05
Abstract: 311,928. Dix, J. May 5, 1928. Dental flasks. - The sections of a dental flask are connected together by screws carried by lugs on one section adapted to engage slots in lugs on the other section and to receive clamping - nuts. As shown, the section 3 is furnished with lugs 5 which are drilled and tapped to receive replaceable screws 8. The section 2 is formed with lugs 4 slotted at 6 to pass over the screws 8, the parts being clamped together by cap nuts 10 adapted to be turned by a coin 11. To enable the sections to be assembled at a slight angle, for undercut models, the top 13 of one slot 6 and the bottom 14 of the other are bevelled, as shown.
Patent GB-1065347-A (GB)
Title: An improvement in or relating to agricultural mowing machines
Inventor: BRADE JAMES NEVILLE
IPC: A01D34/38
Filed: 1965-03-30
Abstract: 1,065,347. Mowing machines. HARRISON McGREGOR & GUEST Ltd. March 21, 1966 [March 30, 1965], No. 13338/65. Heading A1F. The reciprocating knife bar of a mowing machine is driven by a pitman 15 attached to a crank-pin 7 which is secured on the rotating body 102 of a hydraulic motor 101. A spool valve controls the supply of hydraulic fluid passing from the supply conduit 121 to the motor conduits 118, 119 and also, via conduit 125, to a jack which is arranged to lift the mower into the transport position. The spool valve is operated manually by a bowden cable arrangement 136.
Patent GB-135349-A (GB)
IPC: A61K9/00
Abstract: 135,349. Arellano, F. J. H. y R. de. Dec. 23, 1918. Inhalations.-A mixture of menthol, pine oil, rectified spirit, and boracic acid is used to saturate cotton-wool &c. for use in connexion with a mask or respirator so that the medicament is inhaled and serves as a curative agent.
Patent GB-127597-A (GB)
Title: Improvements in or relating to Devices for Plugging the Tapping Holes of Blast Furnaces.
Inventor: BROSIUS EDGAR E
Filed: 1919-05-29
Abstract: 127,597. Brosius, E. E., (Assignee of Berg, H. A.). Sept. 11, 1913, [Convention date]. Discharging.-A clay-gun for plugging a furnace tapping-hole consisting of a clay cylinder 8 and fluid-pressure cylinder 11, is carried on a boom 7. It is filled with clay when in the position shown in broken lines in Fig. 2, and is then swung to the full-line position by means of chains (not shown) which pass round a sheave 33 on a 'sleeve 12, by which the boom 7 is rotatably mounted on a furnace column 4. The chains are operated by hand or power from the cast-house. The gun carries a trolly rail 17 which engages a roller 16 on the end of the boom, and is thus capable of turning in a vertical plane. Until it reaches a position, shown in broken lines in Fig. 3, above the runner trough 6, it is maintained substantially horizontal by means of a flexible anchorage member 44. Towards the end of the movement, it is automatically tilted into the fullline position, with its nozzle 9 in the tapping hole 5. This is brought about by a flexible mernber 18 having one end secured to the rear part of the gun and passing over pulleys 20, 21 on the boom, around a guide on the furnace column on which the boom is mounted, and over a pulley 23 on the furnace casing, the free end carrying a counterweight 19. A stop 26 on this flexible member contacts with a bracket 25 towards the end of the movement of the boom, and so effects the tilting by pulling the flexible member. The gun is then moved forward so that its nozzle 9 plugs the tapping hole 5 by means of arms 28 on an horizontal rock-shaft 27, which arms engage lugs 29 on the gun. The rock-shaft is operated by a fluid-pressure cylinder 32. After the expulsion of the clay, the clamping-arms 28 are released and the gun removed by rotating the boom, being automatically brought to the horizontal position. so as to clear the side of the trough 6, by the action of the flexible member 18
Patent GB-1463476-A (GB)
Title: Bearing assembly
IPC: F16C35/04
Filed: 1975-04-03
Abstract: 1463476 Bearings SKF COMPAGNIE D'APPLICATIONS MECANIQUES 3 April 1975 [4 April 1974] 13771/75 Heading F2A A bearing assembly comprises a cylindrical centring surface 8 interrupted by at least two perpendicular planes 9, 10 leaving standing between them a portion 8a of the cylindrical surface, so that mounting of the bearing assembly may be effected equally well in an angular seat 11 or in a semicircular seat. The centring surface may form the outer surface of a housing 1 in which the bearing 4 is situated. The housing 1 may be mounted in a frame 5 by means of a flange 14, or by extensions of the side covers 2, 3. In a further embodiment, the centring surface is constituted by the bottom of a groove cut into the outer surface of the housing, and the assembly is secured in the frame by means of an iron collar-strap of substantially semicircular or angular shape and which contacts the centring surface. The outer race may be mounted in the housing with axial clearance.
Patent GB-679021-A (GB)
Title: A new or improved storage tray or bin for confectionery and other articles
IPC: A47F5/01
Filed: 1949-05-24
Abstract: 679,021. Making wire trays. CLARK, W. May 22, 1950, No. 13794/49. Class 83 (ii). [Also in Group XVII] A wire tray is made by assembling a mesh of intersecting wires and rods in a grid, welding them together at the points of intersection and cranking up the ends of the wires and rods to form the sides of a tray. The rim may comprise separate rods f, g welded to wires a and rods b-e in the flat, the ends of the rods f, g being welded together after the sides are formed, or alternatively may consist of a continuous wire. The sides of the tray slope outwardly and may be stepped. The tray may be tinned after assembly. Additional rods h may be welded to the rods b-e.
Patent GB-579913-A (GB)
Title: Improvements relating to fountain pens
IPC: B43K24/08
Filed: 1944-07-19
Abstract: 579,913. Fountain pens. BIRO, L. J. July 19, 1944, No. 13804. [Class 146 (iii)] In a fountain pen having a writing tip constituted by a rotatable ball 9 and wherein the end 5<1> of the air-intake tube b is situated centrally of the ends and the sides of the inkreservoir a, an intermediate ink-chamber c is provided between the reservoir and the feed conduit 10 and is separated from the reservoir by a partition 11 having a central funnelshaped part 11<1> projecting into the chamber c and terminating in an orifice 12<1> which constitutes the only means of communication between the reservoir and the chamber. The size of the orifice 12<1> is such that while ink is prevented from flowing back into the reservoir from the chamber c when the pen is inverted, a small reserve is maintained in the orifice and tends to prevent the formation of air bubbles when the position of the pen is reversed for writing. Any air-bubbles formed will be trapped in the space 13 between the part 11<1> and the wall of the pen. The chamber c may be charged through the conduit 10 or by removing the tip 7, the shank 14 of which is frustro-conical and seats in a similarly shaped socket. Air enters the reservoir through channels 1, 2, ink-trap chambers 3, 4 and the tube b. The position of the orifice 5<1> prevents ink entering the tube b when, as in practice, the maximum amount of ink is not more than half the capacity of the reservoir. A deflecting member 6 prevents ink running on to the end of the tube. Specification 564,173 is referred to.
Patent GB-1132537-A (GB)
Title: Data storage systems
IPC: H03K17/64
Filed: 1966-03-29
Abstract: 1,132,537. Circuits employing magnetic storage elements. INTERNATIONAL BUSINESS MACHINES CORP. 29 March, 1966 [15 April, 1965], No. 13804/66. Heading H3B. In a storage matrix having co-ordinate X and Y selection wires and further wires used for both inhibit and sense functions, each inhibit/ sense wire comprises two parallel portions 1,2 which are coupled by a balancing transformer 7 and are associated with respective groups of cores 10, 12, the portions each including a diode 5, 6 which is conductive to inhibit pulses from a source 3 but is non-conductive to the weaker induced sense pulses which act in the same direction as the inhibit pulses. The diodes provide a low impedance path for the inhibit pulses, and when they cease to conduct connect the portions to characteristic impedances 15, 16 which enable energy left in the circuit by the inhibit pulse to be dissipated. In their non-conductive state the diodes enable sense pulses induced in one or other of the portions to pass to a strobed sense amplifier SA connected differentially to the two portions 1, 2, the characteristic impedances then serving to prevent reflections.
Patent GB-1176379-A (GB)
Title: Improvements in or relating to Display Discharge Tubes
IPC: H01J17/49
Filed: 1967-03-23
Abstract: 1,176,379. Glow discharge lamps. THOMSON-CSF. 23 March, 1967 [27 April, 1966], No. 13883/67. Heading H1D. In a display tube comprising a gas filled vessel containing an anode and a plurality of cathodes, one lead wire to an electrode is coated with silica to prevent it becoming luminous. The coating is obtained by exposing the wire to silicon bearing fumes from heated ethyl silicate, an air-silane or N 2 -silane mixture, alternatively the fumes may be obtained by burning an acetylene-silane mixture under pressure.
Patent GB-167871-A (GB)
Title: Improved method of and means for annealing metals
IPC: C21D1/42
Filed: 1920-05-20
Abstract: 167,871. Budd, E. G., and Ledwinka, J. May 20, 1920. Annealing.-In annealing metals, the article is heated, by including it in the secondary circuit of a transformer, under the influence of a vacuum or non-oxidizing medium. and is slowly cooled before exposure to the air. The metal 3 is supported within an air-tight chamber 4 between the terminals 5 of a secondary coil 12. The air is withdrawn by means of a pump 6, or the oxygen may be exhausted by means of a high-tension discharge. An inert gas may be supplied from a container 7.
Patent GB-549567-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/30
Filed: 1941-10-29
Abstract: 549,567. High frequency current transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 29, 1941, No. 13909. Convention date, Oct. 31, 1940. [Class 38 (ii)] A high frequency current transformer comprises an annular core 18 carrying a distributed secondary winding 21 supported and substantially enclosed by an electrostatic shield 31 extending through the structure and along both sides thereof, the outer edges being engaged by grooves 32 in the walls of an insulating housing, the side walls 14, 15 of which have holes 33, 34 through which the primary conductor 35 is passed. The secondary terminals 25 are bridged by a film cut-out of known type which breaks down to short circuit the secondary under excess voltage. Specification 488,120 is referred to.
Patent GB-577006-A (GB)
Title: Improvements in apparatus for setting the fuzes of projectiles
IPC: F42C17/00
Filed: 1940-09-05
Abstract: 577,006. Fuze-setting apparatus. STACEY, C. F. Sept. 5, 1940, No. 13911. [Class 9 (i)] Relates to fuze-setting apparatus of the kind in which the operations of (a) clamping the shell in the socket and causing the rotatable gripping members to engage the timing ring of the fuze, and (b) rotating the gripping members to set the fuze, have to be performed in sequence. According to the invention, both (a) and (b) are performed by a single controlhandle. In the form shown, operations (a) are effected by a crank g, and operation (b) by a lever c on shaft d. The control-handle a is a bell-crank lever pivoted on lever c and connected to crank g by a link e and a slotted link f transversely slidable upon shaft d. In order to ensure that the crank g shall be operated before lever c is moved, the latter may be frictionally held by a leaf spring h mounted on the casing of the apparatus. The fuze-setter shown is of the kind described in Specification 577,004.
Patent GB-1393644-A (GB)
Title: Explosive charges for drill holes
IPC: F42D1/04
Filed: 1973-03-22
Abstract: 1393644 Explosive charges NITRO NOBEL AB 22 March 1973 [27 March 1972] 13923/73 Heading F3A An explosive charge comprises a closed tube 7 filled with explosive and arranged eccentrically with respect to a larger diameter tube 1 also filled with explosive. This arrangement enables the wires 11 and 12 of a detonator 10 to extend freely through a space formed between the tube 7 and the wall of a drill hole in which the charge is inserted. The two tubes are held end-to-end by sleeves 4 and 6 extending from a disc 5, or, in a modification (Fig. 4, not shown) the tubes are integrally formed as a unitary member. Further tubes of explosive having a diameter corresponding to the tube 7 may be connected thereto by means of sleeves (14), Fig. 2, not shown, provided with tongues (15) at one end.
Patent GB-296336-A (GB)
Title: Improvements in or relating to air brakes of the single train pipe kind
IPC: B60T15/04
Filed: 1927-05-26
Abstract: 296,336. Trofimoff, I., and Matrosov, I. May 26, 1927. Fluid-pressure.- Relates to brakes for railway trains operating with a single train pipe in which the driver's valve and the distributor valve have hollow spindles provided with spring- loaded double valves controlling an air inlet and an atmospheric outLet. The double valves are normally retained within the hollow spindle by the air inlet valve cone while the seat of the atmospheric outlet valve is movable independently of the hollow spindle. In the driver's valve, Fig. 1, the hollow spindle 6 is adapted to be moved axially by a handle 4 and in a brake application to raise the double valve which it contains so that the outlet cone 44 of the double valve is removed from its seat and the train pipe 20 is vented to atmosphere through the outlet 17. The outlet 17 which is guided by the lower part of the spindle 6 is carried by a spring pressed diaphragm 18 subject to the train pipe pressure and follows the movement of the valve 14 so as to close the air outlet at each stage of the application. The train pipe is charged, to release the brakes, from the air reservoir pipe 11 by lowering the hollow spindle to open the air inlet valve 13 which follows the movement of its seat to reclose the valve at each stage of the release owing to the movement of the diaphragm 18. The driver's handle 4 moves on a screw-like collar 3. A piston may take the place of the diaphragm and the springs pressing on the piston may be adjusted by a lower screwed part of the casing. The distributor, Fig. 3, consists of similar parts and functions similarly to the driver's valve except that it is regulated by variation of train pipe pressure in the pipe 41 acting on a spring-pressed piston 33 having a constant pressure acting above it in chamber 34. The upper cone 43 of the double valve controlling communication between the auxiliary air reservoir pipe 39 and the brake cylinder pipe 56 and the lower cone 44 controls communication between the pipe 56 and the atmospheric outlet 47. The auxiliary air reservoir is charged from the train pipe through a non- return valve 37 in the hollow spindle 36. The brake cylinder may be fed through a narrow channel 55 and a wide channel 57 controlled by a cock 58 so that the speed of braking may be varied. The cock 58 may be moved to close the pipe 56 and connect it to atmosphere by a port 59 thus putting the brake out of action. The tension of the spring 51 pressing on the piston 48 carrying the air outlet 47 may be regulated by a screw regulating member 61 so as to vary the strength. of the braking action. A distributor valve of simple design is shown having a spring pressed valve in the outlet 47 to prevent entrances of dust &c.