baber/WOPTO huggingface dataset:
Patent GB-1322015-A (GB)
Title: High molecular weight polyquinazolones
IPC: C08G73/06
Filed: 1970-06-16
Abstract: 1322015 4,4' - Bis - diphenyl compounds BAYER AG 16 June 1970 [3 July 1969] 29005/70 Heading C2C [Also in Division C3] 4,4' - Bis - (3 - carboxy - 4 - aminophenoxy)- diphenyl sulphone is prepared by reacting 4,4'- dichlorodiphenyl sulphone with, per mole thereof, 2À2-2À3 moles dipotassium salt of 2- amino-5-hydroxybenzoic acid in dimethyl sulphoxide at 120‹ C. for 12 hours. The diacid chloride of 4,4' - bis - (4 - carboxyphenoxy)-diphenyl sulphone in prepared in U.S.A. Specification 1,220,645 by reacting the dipotassium salt of 4-hydroxybenzoic acid with, per mole thereof, 0À4 moles 4,4'-dichlorodiphenyl sulphone in dimethyl sulphoxide at 120-130‹ C. followed by reaction of the free dioarboxylic acid with thionyl chloride. 4,4' - Bis - (4 - amino - 3 - carbanilido - phenoxy)-biphenyl is obtained by catalytic hydrogenation of 4,4'-cis-(4-nitro-3-carbanildophenoxy)-biphenyl. The latter compound is itself obtained by: dissolving 4,4'-dihydroxydiphenyl and KOH in water, adding dimethyl sulphoxide, distilling off the water and part of the dimethyl sulphoxide, adding 5-chloro-2-nitrobenzanilide, stirring at 100‹ C. in a nitrogen atmosphere, recovering, and recrystallizing.
Patent GB-1249505-A (GB)
Title: Heating apparatus for shaft furnaces
Inventor: GRIMM WERNER
IPC: F27B1/16
Filed: 1969-06-09
Abstract: 1,249,505. Shaft furnaces. SHELL ININTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 9 June, 1969 [11 June, 1968], No. 29071/69. Heading F4B. A limestone burning shaft kiln (not shown) is provided at its bottom with a central vertically extending air and gas supply means. This comprises a central gas supply conduit 2 leading to a distribution chamber 3 having spaced peripheral gas openings 3b, a concentric air supply conduit 1, and a concentric outer shell 7. Combustion air from conduit 1 passes up through tubes 5 into hollow top cone 4 and then down through tubes 6 into the annular space between shell 7 and conduit 1, to be discharged through annular outlet 9. Some air may bypass the tubes 5, 6 and cone 4 by passing through slits 14 in the top of conduit 1. In a modification (Fig. 2, not shown) part of the combustion air may be discharged through spaced peripheral outlets immediately below the gas distribution chamber, the proportion so discharged being valve controlled. Further air outlets may be provided in the hollow cone 4. In this case only air from the slits 14 need be discharged through the annular outlet 9, all or part of the air from the tubes 5 being discharged through the outlets in the hollow cone.
Patent GB-742848-A (GB)
Title: Improvements in diesel engine injection pumps
Inventor: DUFF JAMES ROBERTSON
IPC: F02M59/36
Filed: 1953-10-21
Abstract: 742,848. Fuel-injection pumps. PORN & DUNWOODY, Ltd. Oct. 21, 1954, [Oct. 21, 1953], No. 29100/53. Class 102(1). In a fuel-injection pump, the delivery is controlled by opening a spring loaded by-pass valve 10, during the latter part of the delivery stroke, by a push rod 20 actuated by a lever 22 mounted on an adjustable fulcrum 24 and the fuel by-passed flows through passages 14, 16 to a closed vessel 18 provided with an air buffer, flexible wall etc. During the next suction stroke, the fuel returns through valve 10 to the pump cylinder. The pump has a suction valve 8 and a delivery valve as described in Specification 742,847 to prevent drip at the injector.
Patent GB-768163-A (GB)
Title: Fluid sealing fastener
IPC: B60K15/04
Filed: 1954-10-11
Abstract: 768,163. Bolts; rivets. WING, G. S., KIRK, A. J., WING, G. D., WING, Z. S., CESSNA, G., CESSNA, M. E., KIRK, E. A., KIRK, A. P., and REED, C. C., [trading as HI-SHEAR RIVET TOOL CO.]. Oct. 11, 1954 [Oct. 12, 1953], No. 29251/54. Class 89 (1). [Also in Group XXVI] A bolt, rivet, &c. has a head 22, Fig. 4, with an annular recess 26 in its work-engaging face 23, and a resilient ring 25 having substantially the same volume as the recess is bonded to a part thereof and projects therefrom before the fastener is tightened. The ring may be made of natural or synthetic rubber, e.g. neophrene, and when the fastener is tightened the ring fills the recess to create a fluid-tight seal between the head and work. In the case of a rivet 10, Fig. 2, e.g. of stainless steel, the ring 17 is located in a recess 14 in the countersunk head 12, and the shank 11 has an end 20c engaged by a cylindrical collar 20b of malleable metal, e.g. aluminium, which is contracted to clinch the rivet.
Patent GB-536417-A (GB)
Title: Improvements in or relating to electron discharge devices utilising electron multiplication
IPC: H01J29/02
Filed: 1939-11-03
Abstract: 536,417. Electron multipliers image intensifiers. LUBSZYNSKI, H. G., and MILLER, H. Nov. 3, 1939, No. 29282. [Class 39 (i)] An electron stream is projected longitudinally of a magnetic field through an electrostatic field which diverts it laterally until it strikes an electrode giving secondary emission ; the stream of secondary electrons passes through the two fields so that it is again diverted laterally and the primary and secondary streams are separated. Fig. 1 shows an arrangement in which a stream from a photo-cathode P passes along the magnetic field indicated by across and between electrodes shown in plan at D1 to strike the emissive electrodes M. The secondary stream is diverted in the same way to strike the receiving electrodes S. Acceleratiing electrodes 1, 4, 6 and screening electrodes 2, 3, 5 are provided in connection with the electrodes P, M, S. The electrodes 2, 3, 5 are at a potential equal to the mean potential of the plates D1. The electrode S may be a target electrode, or it may be secondarily emissive and be succeeded by a similar set of electrodes. In the latter case some of the secondary electrodes may be replaced by electrodes at such a potential as to form electron mirrors. serving as velocity filters. The stream produced by the electrode P may be a composite stream produced by an optical image, in which case an electron image is focused on each of the subsequent target electrodes. In this case the final image may be formed on the back of the cathode P, which is transparent, so as to produce a feedback effect. To prevent excessive excitation of the cathode P in this case ,and consequent arcing, the electron stream may be interrupted periodically by a negative potential applied to the electrode 1. Specifications 513,111, 530,409 and 542,219 are referred to. Reference has been, directed by the Comptroller to Specification 543,710.
Patent GB-762491-A (GB)
Title: Support stand for the upper run of conveyors the bottom run of which is for conveying materials
IPC: B65G21/00
Filed: 1953-10-23
Abstract: 762,491. Endless belt conveyers. DOMANIALE MIJN MAATSCHAPPIJ N.V. Oct. 23, 1953 [Oct. 29, 1952], No. 29333/53. Class 78 (1). In an endless conveyer, particularly for use in coal mines and wherein the bottom run is the conveying run and slides along the floor, the upper run is supported by a series of stands each comprising a belt-supporting member 13 of circular section secured to telescopic pillars provided with foot plates 11, 12. The foot plate 12 is provided with a welded angle iron 17 to receive a compressed-air pipe, electric cables or the like, and with a bent-up edge 20. The foot plate 11 has a corresponding bent-up edge 19. The parts 1, 2, 3, 4 of the pillars may consist of lengths of piping. Specification 404,694 is referred to.
Patent GB-243381-A (GB)
Title: Improvements in and relating to vacuum tubes
IPC: H01J19/78
Filed: 1925-11-21
Abstract: 243,381. Dubilier Condenser Co. (1925), Ltd., (Assignees of Nyman, A.). Nov. 21, 1924, [Convention date]. Vacuum tubes. - A thermionic valve or other tube has has a grid-leak resistance and an anode-coupling resistance mounted inside the bulb, the grid-leak resistance being connected with the grid and filament. As shown a coupling resistance 9, consisting of material not subject to changes of heat, is connected between the anode 6 and a ferrule 3 surrounding the neck; a leak resistance 8 of moulded material freed of gas is mounted on the stem 2 and is in contact with the leads 10 of the filament 5 and supports 14 for the grid 16, or the leak resistance may consist of a paste applied to the stem.
Patent GB-691874-A (GB)
Title: Improvements in castering wheels for aircraft
Inventor: MACLAREN OWEN FINLAY
IPC: B64C25/50
Filed: 1950-12-01
Abstract: 691,874. Aircraft undercarriages. DUNLOP RUBBER CO., Ltd. Nov. 6, 1951. [Dec. 1, 1950] No. 29426/50. Class 4. A caste ring wheel assembly for an aircraft comprises a kingpin mounting comprising a spigot adapted to be rigidly connected to an aircraft leg and integral with a housing for a hub, a pair of co-axial kingpins mounted in the housing with their adjacent ends spaced apart and projecting within the housing, a hollow hub mounted on the inwardly projecting portions of the kingpins and rotatably connected to the housing through the kingpins, a wheel having an axle mounted on anti-friction bearings within the hub and a cam and cam follower located between the housing and the hub adapted to maintain the housing at substantially the same height relative to the ground irrespective of the angle through which the wheel casters. The lower end of the oleo leg 12 carries a flange 11. to which is bolted a cup-shaped housing 9 provided with co-axial bushes 17 and 18 to receive rotatable spaced kingpins 21 and 22 fixed within a hub member 13. Roller bearings 14, supported in the hub 13, carry a half shaft 3 having an outer flange 4 for the attachment of a landing wheel 1. A member 24 having a trough section periphery for the reception of a brake mechanism (not shown) carries a flange 26 which is connected to a flange 23 on the hub 13 by means of bolts 27 and co-operating brake drum 6 is secured by bolts 8 to the wheel 1. A cam 40 and cam follower 41 Fig. 4, (not shown) are co-axial with the kingpin 21 and are respectively secured to the hub 13 and the housing 9. The lower kingpin 22 is formed as a cylinder and accommodates a relatively slidable plunger 28 having a shank 30 formed with a union 32 for connection to a source of pressure fluid. The pressure within the cylinder of the kingpin 22 holds the cam and follower 40, 41 in engagement so that the wheel is aligned correctly or brought back into alignment after castering movement has taken place. In an alternative embodiment Fig. 3, (not shown) a helical compression spring replaces the piston and cylinder arrangement. In either embodiment the common axis of the kingpins intersects the ground at a point forward of the wheel ground contact point to provide a positive caster action and the inclination of the cam faces on members 40 and 41 is so arranged that as the wheel casters the distance that the housing 9 is raised compensates for the distance by which the effective height of the wheel is reduced when it casters on the inclined kingpins.
Patent GB-429813-A (GB)
Title: Stopper for bottles containing frothy drinks
IPC: B67D1/04
Filed: 1934-10-15
Abstract: 429,813. Stoppers for bottles. SCHUPBACH, E., 6, Moserstrasse, Berne, Switzerland. Oct. 15, 1934, No. 29466. [Class 125 (iii)] A stopper for use in filling bottles with frothy drinks which is secured to the bottle by a wire clamp has two convergent passages 6, 7, one serving in an inlet and discharge passage and the other as a guide for a non-return valve 11 having a rubber cap 9. The valve fits into a recess and when opened uncovers holes extending radially through the wall of the recess from which liquid is directed on to the bottle neck when filling. The valve is maintained in the closed positon by a rubber sleeve 13.
Patent GB-295152-A (GB)
Title: Gin for cotton and all fibrous materials
IPC: D01B1/06
Filed: 1927-11-04
Abstract: 295,152. Libert, A. Nov. 4, 1927. Gins.-In a cotton gin of the type comprising a gin roller, a doctor knife, and a beater shaft rotating in a grid-like trough, the beater shaft 6, Fig. 2 and 3, is mounted in vertically adjustable bearings and is polygonal in section and has removably secured to it reversible blades 7. The blades may be fitted with brushes 20, or leather, rubber, &c. blades 21, or metallic resilient blades 22. The cylindrical grid 5 is formed in two parts hinged together and carries a feed 'hopper 12. The grid is independently adjustable and is provided with a slot opposite the doctor knife 13 and gin roller 2. The cotton is removed from the roller 2 by a wooden batten 16, suspended by chains 17. The cotton is fed into the hopper 12 from a storage hopper 23 by a roller 24 carrying radial pins of different lengths. A sheet metal plate 26 is hinged to the hopper and is slotted at its end to allow passage of the pins on the roller 24. By altering the inclination of the plate 26 the number of pins operating to feed the cotton from the hopper can be varied, and, if desired, the hopper can be completely closed. The grid 5 is maintained in its closed position by springs 32.
Patent GB-239749-A (GB)
Title: Improvements in or relating to apparatus for heating liquids by electricity
IPC: A47J27/00
Filed: 1924-12-09
Abstract: 239,749. Robinson, H. Dec. 9, 1924. Heating by electricity.-A liquid-container B has an annular base or skirt A to which is fitted a self-contained electric heating unit comprising a frame 1 carrying a plurality of flat heating elements 2, means for clamping them against the outside of the container, and connections of the elements with terminals 9 for the supply conductors. The frame is secured to the container by bolts 11 so that there are no perforations in the part of the container in contact with the liquid. The elements 2 are individually supported on insulating material 3 carried by clamping plates 4 mounted on adjusting screws 5 and are electrically connected to terminals 7 by conductors 6, the terminals 7 being connected by further conductors to the terminals 9.
Patent GB-175689-A (GB)
Title: Improvements in or relating to coin-freed apparatus
IPC: G07F11/18
Filed: 1920-10-19
Abstract: 175,689. Tonkin, E. C., and Collins, H. T. Oct. 19, 1920. Delivery of articles stored in piles; coin action, with stationary coin forming abutment, mechanical-connection, and multiple-coin.-Relates to apparatus of the type comprising a slide, for instance a delivery drawer, door catch, &c., which is unlocked by a coin arrested in a predertermined position in a coin-guide, and consists in unlocking mechanism which prevents fradulent actuation by washers, discs of soft material, and coins of too small a diameter or thickness. As shown applied to a delivery drawer, the drawer 10, Fig. 1, pro. vided with a depending bracket 13 has a spring- pressed pawl 29 engaging a stationary rack 31. The pawl is released by an arm 32 on a plunger 14 carried in the bracket 13 when the plunger, through abutting against one or more coins inserted through a slot 12 into a coin-pocket 17, is pressed back against the action of a spring 33. The coin-pocket 17 is then carried forward against the resistance of spring friction devices 22, Fig. 4, acting on fixed guide-rods 21 by the plunger pressing against the coin. thus maintaining the pawl 29 in unlocking position during the delivery movement of the drawer. The coin in the pocket 17 rests on narrow parallel pins 23 projecting from a fixed block 20, the pin 23 extending a short distance only so that when the pressure of the plunger is released the coin drops into a money-box. The pocket is returned with the drawer by heads 19 on rods 18 extending from the bracket 13 through the pocket Empty machines, locking.-A following weight has a spring-pressed pin to engage an aperture in the frame and prevent the return of the drawer when the machine is empty. Fraud, preventing; testing coins.-The end of the plunger 14 is pointed and engages the coin in the centre to prevent the use of washers. A pin 36 prevents a washer from becoming permanently threaded on the plunger. Discs of soft material are bent and forced through an aperture 27 in the pocket 17. Coins or discs of small diameter fall between the pins 23 into a conduit 26. Too thin a coin fails to press the plunger back sufficiently to effect the release of the pawl 29.
Patent GB-982078-A (GB)
Title: New sugar derivatives
IPC: C07H15/06
Filed: 1961-08-16
Abstract: The invention comprises sugar derivatives <FORM:0982078/C2/1> where X is the residue of a fatty acid containing at least 10 carbon atoms; Z is the radicle of a di- or tri-saccharide; R is H or C1- 6 alkyl; m is 1-50; and n is 1-8 when Z is a di-saccharide radicle and 1-12 when Z is a tri-saccharide radicle.  They are obtained by reacting the corresponding sugar glycol ethers with a fatty acid ester of a C1- 6 alkanol. Catalysts and solvents (both listed) are preferably present. Sacchorose octuhexa- and tetra-propylene glycol ethers are the specified starting materials.
Patent GB-503968-A (GB)
Title: Improved process for the manufacture of silica gel
IPC: C01B33/12
Filed: 1937-10-29
Abstract: 503,968. Silica gel. SOC. ANON. DES PRODUITS CHIMIQUES DE LAEKEN. Oct. 29, 1937, No. 29672. Convention date, Sept. 9, 1937. [A Specification was laid open, to inspection under Sect. 91 of the Acts, May 6, 1938.] [Class 1 (ii)] Silica gel is obtained by treating artificial silicates, e.g. slags, scoria or metallurgical residues, with an acid, e.g. dilute hydrochloric acid, at a temperature below that which would decompose the resulting soluble salts, the material so obtained being treated with injected steam for a time sufficient to eliminate the sulphur products, whereafter the material is filtered, washed and dried. The steam treatment may be continued until the temperature of the material is 103-105‹ C. The crude gel obtained by the acid treatment may be subjected to an initial drying step followed by a treatment with water or liquid or gaseous acid. The product after the treatment with steam is filtered and the residue is then washed' free from acid. The washing may be effected by. injecting steam under pressure into the mass on the filter thus completing the rendering of the silica insoluble and eliminating all impurities. The washing of the filter cake may take place in two stages, first by means of cold water and then by means of steam. The material leaving the filter is then dried and ground.
Patent GB-1078833-A (GB)
Title: Improvements in parametric frequency-multiplier circuits
Inventor: CALLICK ERIC BRIAN BUTLER
IPC: H03B19/16
Filed: 1965-07-13
Abstract: 1,078,833. Frequency changing. G. & E. BRADLEY Ltd. June 23, 1966 [July 13, 1965], No. 29713/65. Heading H2F. A frequency multiplier circuit comprises an input filter, a varactor diode and a resonant circuit, tuned to pass the required harmonic of the input frequency, which comprises inductive and capacitive elements in parallel. One of the reactances is composed of two elements in series and the input is connected to one element and the output taken from the other.
Patent GB-1513786-A (GB)
Title: Engine balancer
IPC: F02B75/20
Filed: 1975-07-15
Abstract: 1513786 Balancing MITSUBISHI JIDOSHA KOGYO KK 15 July 1975 [16 July 1974] 29713/75 Heading F1M A reciprocating engine includes at least one piston driving a crank-shaft 5 via a respective connecting rod, the engine incorporating at least two balancer shafts 6, 8 disposed on opposite sides of the crank-shaft. Each balancer shaft is mounted for rotation in the engine and is out of balance about its respective rotary axis. Also each balancer shaft is so formed and mounted that the mass which is unbalanced about the rotary axis of the shaft has a centre of mass which is disposed between the axial limits of a bearing 18, 19 in which the shaft is rotatably supported and the centre of mass is so disposed in relation to the axial limits of the bearing that the centrifugal forces arising in rotation of the shaft do not tend to tilt the shaft in the bearing. A sprocket (not shown) is secured to the crank-shaft and a chain 50' extends around sprockets (not shown) whereby the balancer shafts are driven by the crank-shaft, the drive of the balancer shaft 8 including a gear 8 "meshing with a gear 8'.
Patent GB-1316998-A (GB)
Title: Device for subcutaneous administration of biologically-active substances
IPC: A61D7/00
Filed: 1970-06-19
Abstract: 1316998 Administering medicines ORGANON LABORATORIES Ltd 19 June 1970 [23 June 1969] 29831/70 Heading A5R A device for subcutaneous administration to animals of biologically active substances, such as progesterones, comprises a cylindrical shank 10, a conical body 14 and a cylindrical, conical, or part conical frame 18, the body and frame being joined one to each end of the shank, and the maximum diameter of the body and frame being greater than that of the shank, and has a hollow cylinder 22 of polymeric material fitted around the shank between the body 14 and the frame 18 in which cylinder the biologically active substance is impregnated. The diameter of the frame is preferably greater than that of the body, and either the body or the frame is removable from the shank to allow fitting and removal of the cylinder 22. A pin having an eye and a thread attached thereto may be positioned at the end of the frame to assist in locating the device and removing it from the animal.
Patent GB-523445-A (GB)
Title: Improvements in and relating to welding apparatus
IPC: B23K11/24
Filed: 1939-01-04
Abstract: 523,445. Welding ; electric switches. BRIGGS MANUFACTURING CO. Jan. 4, 1939, No. 30047. Convention date, May 26, 1938. Divided out of 523,407. Drawings to Specification. [Class 83 (iv)] [Also in Group XXXVII] In an electric welding apparatus comprising a number of welding units with fluid-operated electrodes successively supplied with fluid pressure and a fluid-operated switch, the switch is controlled by a number of independent valves successively movable to open position by the fluid admitted to the welders so as to close the welding circuit each time the electrodes of one welder are moved into engagement with the work, the switch being opened after a predetermined time interval. Specifications 523,407 and 523,444 are referred to. The apparatus is fully abridged in connection with Specification 523,407.
Patent GB-389418-A (GB)
Title: Improvements in luminous electric discharge lamps
IPC: H01J17/00
Filed: 1932-10-27
Abstract: 389,418. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Oct. 27, 1932, No. 30125. Convention date, Nov. 17, 1931. [Class 39 (i).] In a lamp having a positive column discharge which is viewed end-on, and having a container-like cathode 2 and an annular anode 6 disposed in front of it, the cathode 2 contains a vaporizable metal such as sodium, caesium, or cadmium and has a central aperture 5 in the walls 4 facing the anode 6, the length of the cathode is more than twice the distance of the wall 4 from the anode. With this arrangement a part of the positive column passes through the aperture 5 and the cathode is strongly heated. The end 8 of the tube may be an inserted plain glass window and is conveniently plane. The electrodes are so arranged that a discharge on their outer edges is prevented. The lamp may have a neonhelium filling at a pressure of 3 mm. Dimensions, current, and cathode temperature of a typical lamp are given.