baber/WOPTO huggingface dataset:
Patent GB-807607-A (GB)
Title: Variable-capacity outwardly-sliding vane pump
IPC: F04C14/22
Filed: 1957-06-28
Abstract: 807,607. Rotary pumps. GILBERT & BAKER MANUFACTURING CO. June 28, 1957 [Aug. 8, 1956], No. 20454/57. Class 110 (2). In a variable-capacity rotary pump of the outwardly-sliding radial vane-type for priming a centrifugal pump, the stator 11 is provided with opposed recesses 16, 17 which respectively communicate with the inlet 29 and outlet ports of the rotary pump through radial passages 32, 33. The inlet and outlet ports of the rotary pump are in the form of arcuate slots which are disposed in the side plates and communicate respectively with the eye of the centrifugal impeller, through ports therein, and the outlet thereof. The pressure differential across the rotary pump serves to raise the stator in its housing about its fulcrum 9 and against the action of a spring 15 and hence move it into its inoperative position.
Patent GB-949315-A (GB)
Title: Process for the preparation of n-(5-nitro-2-furfurylidene)-3-amino-2-oxazolidones and new chemical compounds prepared thereby
IPC: C07D413/12
Filed: 1960-06-10
Abstract: The invention comprises: (a) 21-hydroxyalkyl 5-nitro -2- furfurylidenecarbazates; (b) 21-haloalkyl 5-nitro -2- furfurylidenecarbazates; (c) the preparation of compounds (a) by reacting an alkylene carbonate with hydrazine to produce a 2-hydroxyalkyl carbazate and reacting this with a compound having a reactive divalent 5-nitro-2-furfurylidene radical (e.g. 5-nitrofurfural or its diacetate); (d) the preparation of compounds (b) by treating compounds (a) with a halogenating agent (e.g. thionyl chloride); and (e) the preparation of an N-(51-nitro -21- furfurylidene) -3-amino -2- oxazolidone by carrying out processes (c) and (d) and treating the product of (d) with an alkali metal alkanolate, hydroxide or carbonate. Compounds (a) and (b), besides being intermediates in process (e), are useful as coccidiostats.
Patent GB-1494902-A (GB)
Title: Penicillins
IPC: C07D499/00
Filed: 1974-05-09
Abstract: 1494902 Aminoacyl penicillins GLAXO LABORATORIES Ltd 9 May 1975 [9 May 1974] 20584/74 Heading C2C A process for the preparation of an α-aminoacyl-penicillin comprises (i) contacting 6-aminopenicillanic acid (6-APA) with an excess of a strong tertiary amine base in the presence of a water-immiscible inert organic solvent to yield a solution of a salt of 6-APA (ii) neutralizing the residual strong tertiary amine base in said solution; (iii) contacting the resulting neutralized solution with a solution in a waterimmiscible inert organic solvent of the mixed anhydride of a monoalkyl carbonate with an N-protected derivative of an α-aminoacid wherein the N-protecting group is acid-labile, to yield a solution of an N-protected α-aminoacylpenicillin; (iv) contacting the resulting solution with water and a strong acid to cleave the N-protecting group; and (v) isolating the thus-obtained α-aminoacylpenicillin from the resulting water-containing system.
Patent GB-441140-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C1/32
Filed: 1934-07-14
Abstract: 441,140. Ladders. WELLS, E. G., c/o X Chair Patents Co., Ltd., Hayes, Middlesex, and WILSON, E. L., 94, Demesne Road, Wallington, Surrey. July 14, 1934, No. 20676. [Class 20 (ii)] A convertible long and step ladder is provided with a wide platform in the position of the top step but one so that a person standing on this step can rest his legs against the top rung of the ladder portion. The ladder comprises a step portion 11 and a strut portion 12 hinged together on an axis disposed beneath the wide platform step 16 which is recessed at 37, Fig. 5, to receive the sides of the strut portion 12 when used as a long ladder. The ladder portions are locked in extended position by spring locks 29, 32 adapted to enter spaced apertures 33, 35 in the fixed hinge-plates 20 disposed on the side posts of the step-ladder portion 11, the locks being released by rotation of a pivoted lever 24 placed at one side of the ladder portion. The Provisional Specification describes also a notched lever on one ladder portion engaged by pins on the other ladder portion to lock the parts in extended position.
Patent GB-239045-A (GB)
Title: Process of producing light hydrocarbons such as gasoline by distillation of solid carbonaceous materials
IPC: C10G1/02
Filed: 1924-09-02
Abstract: 239,045. Trumble, M. J. Sept. 2, 1924. Superheating chambers heated by combustion gases. -Steam is admitted by a pipe 43 to the base of a furnace heated shell 41 which contains a central rod 44 carrying flanges 45 extending into the convolutions of the shell.
Patent GB-1459306-A (GB)
Title: Walking machine
IPC: B66C9/14
Filed: 1974-05-10
Abstract: 1459306 Excavators RUSTON-BUCYRUS Ltd 10 May 1974 [9 July 1973] 20722/74 Heading E1F [Also in Division B7] The shoes 15, 16 of a walking machine are moved vertically and horizontally by a combined non-circular rotary cam and crank arm apparatus. Each shoe pivotally mounts at 20, 21 an L-frame 17 slotted at 29 and supporting rollers 23, 24. A cam 32 is mounted between the rollers 23, 24 and is rotated by a shaft 33 on the machine. A further roller 35 supported by a pin 34 on the cam is trapped in slot 29 and the cam between shaft 33 and pin 34 forms a crank arm 37 for roller 35. On rotation of shaft 33 the cam and rollers 23, 24 cause vertical movement whilst slot 29 and roller 35 effect horizontal movement of the shoe. In other embodiments. the movement roles of the crank and slot drive and the cam drive may be reversed, the crank arm may be independent of the cam, or a single cam roller may be used trapped in a channel on the cam.
Patent GB-1022327-A (GB)
Title: Improvements in or relating to multipurpose dental appliances for testing the vitality of teeth and cauterising
IPC: A61B5/053
Filed: 1964-05-20
Abstract: 1,022,327. Testing the vitality of teeth; cauterising. CHIRANA PRAHA NARODNI PODNIK. May 20, 1964 [May 21, 1963], No. 20780/64. Headings A5K and A5R. A dental appliance comprises a handle containing an adjustable resistance 1, a resistor 2, a switch 9, and contacts 3, 7, 8, and a probe electrode 4 and cauterising wire 6, either the electrode or the wire being fitted to the contacts in the handpiece to provide current for testing a tooth or a cauterising device respectively. When using the probe electrode, the electric circuit is completed via a casing 15 on the handle, the dentist 5, and the patient, and the current is monitored by an amplifier and loudspeaker. Separate current sources are provided to the electrode and cauterising wire, that to the latter being a low voltage D.C. source.
Patent GB-1207333-A (GB)
Title: Improvements relating to boring bars
Inventor: PAWLIK VLADIMIR JAN
IPC: B23B29/034
Filed: 1967-05-04
Abstract: 1,207,333. Boring bars. VERO MACHINE TOOL CO. Ltd. 30 April, 1968 [4 May, 1967], No. 20837/67. Heading B3C. A boring bar comprises cutter holders 28 fixed to a shaft 10, cutters 30 slidable in grooves 29 in the holders, and calibrated rings 33 rotatably mounted on shaft 10, and having spiral grooves 32 which co-operate with pegs 31 on the cutters, so that on rotation of the rings, the cutters are adjusted in the radial direction. Shaft 10 is of hexagonal cross-section with a triangular flange 14, and is releasably held in a machine tool spindle 17 by a nut 18 having a triangular aperture 19. The cutters are clamped in their adjusted positions by a screw 20 and spacers 21, 26, 25, 24, spacer 26 having dogs 261 which drive a spade drill 27. Two cutters can be accommodated in each groove 29. In a modification, a groove 29 is provided on the two faces of each holder, so that up to four cutters per holder can be used, in which case a ring 33 is provided on each side of the housing. Spacers of different lengths, or an adjustable spacer, may be provided. Adjacent cutters may be adjusted simultaneously by a ring having a spiral groove on both sides.
Patent GB-1197160-A (GB)
Title: Method of Forming a Lubricating Uranium Oxide Coat on Uranium Metal
IPC: C23C22/58
Filed: 1969-04-23
Abstract: 1,197,160. Oxidizing uranium surfaces. UNITED STATES ATOMIC ENERGY COMMISSION. April 23, 1969 [May 21, 1968], No.20864/69. Heading C7U. [Also in Division B3] A uranium billet has its surface oxidized prior to deformation by exposure to air or preferably by an acidic aqueous permanganate solution. The permanganate concentration is from 4 to 6% and any alkali permanganate may be used. The acid may be nitric or hydrochloric. The solution is heated to 80‹C. to 100‹C. and the billet immersed for preferably 5 to 10 minutes.
Patent GB-238890-A (GB)
Title: Improvements in or relating to electrical hearing apparatus for deaf persons
IPC: H04R25/00
Filed: 1925-08-20
Abstract: 238,890. Siemens & Halske Akt.-Ges. Aug. 20, 1924, [Convention date]. Portable sets; amplifying systems.-In telephones for deaf persons the current variations in the circuit of the microphone which receives the sound operate electromagnetically one or more microphones in series with the receiving telephone, or react on the receiving microphone. Two coils 4, 9, Fig. 2, may be placed in circuit with the primary microphone 3 to influence microphones 5, 8 in series with the telephone 7. In another form, Fig. 3, interaction takes place between the microphone 10 which receives the sound and a coil 11 in circuit with it. Oscillations in the circuit may be prevented by selection of the direction in which the current traverses the coil in relation to the permanent magnet used therewith. Various arrangements of the elements of the apparatus are described for carrying on the persons, the different wires being led to the battery by plug-in connections.
Patent GB-204181-A (GB)
Title: Improvements in buffing and draw gear for railway, tramway and like vehicles
IPC: B61G7/12
Filed: 1922-08-01
Abstract: 204,181. Spencer, A. Aug. 1, 1922. Combined buffer and draw-gear.-In automatic couplings of the central buffer type comprising a central coupling head formed in one with or rigidly connected to a draw-bar the outer end' of the draw-rod 1 rests upon a transverse bar 12 the ends 11 of which are supported by a pair of suspension links 9 located one at each side of the draw-rod; trunnion pins 8 project from the upper ends of the suspension links 9 and rest on supports or seats 7 fixed to the vehicle headstock and the transverse bar 12 which supports the drawrod has bifurcated ends which rest on similar trunnion pins 10 projecting from the lower ends of the suspension links 9. The transverse bar 12 is provided with a seat 13 for the draw-rod 1. To the draw-rod 1 is pivoted a transverse bar to the ends of which the combined buffing and draught springs 4 are connected by rods 17.
Patent GB-1396892-A (GB)
Title: Electrode welding
Inventor: HAVERSTRAW ROBERT C
IPC: B23K35/36
Filed: 1972-05-05
Abstract: 1396892 Welding by fusion LINCOLN ELECTRIC CO 5 May 1972 [7 May 1971] 21023/72 Heading B3R [Also in Division C7] An arc welding electrode contains flux ingredients including (a) sufficient of a preformed composite other than titanates, formed by reacting an alkali metal oxide or precursor with an acidic or amphoteric metal compound, to give at least 0À2% wt. of electrode of reducible alkali metal and (b) sufficient reducing agent to reduce the composite to alkali metal in the welding arc. The composite is preferably formed by reacting the alkali metal oxide with at least one of the oxides of Fe, Mn, Si, Al, Ni or Co to form, e.g. M 2 O.Fe 2 O x , M 2 O.SiO 2 , M 2 O.Al 2 O 3 , M 2 O.CoO, M 2 O.NiO and M 2 O.Mn 2 O x  where x is 1À6-3 and forms 0À9-10% of the electrode wt. LiF, BeF 2 , MgF 2 , SrF 2 , NaF, BaF 2 , CaF 2 , CaO, SiO 2  and MgO can be included in the composite. The reducing agent forming 0À5-6% of the electrode may be Al, Mg, Ca, Li, Ce, Zr, Si, Ti, C, alloys or intermetallics of these, or a lanthanide series element. Conventional flux powders, e.g. TiO 2 , BaF 2  and Fe powder may be included and the flux mixture is used as a core of a steel tube electrode. The electrode is used in welding steel to reduce the N 2  content of the weld.
Patent GB-134104-A (GB)
Title: Improvements in the Construction of Metal Cases for Containing Shelves, Drawers or the like, and in the Construction of Sliding Drawers therefor.
IPC: A47B88/12
Filed: 1918-12-17
Abstract: 134,104. Roneo, Ltd., and Chipperfield, W. Dec. 17, 1918. Collapsible cabinets; drawers.-Metallic cabinets, drawers, &c., of the kind having parts which can be easily connected and disconnected, have the back member and side members connected together as shown in Figs. 1-3. The back members 1 has a flange 2, 3 and is provided with tongues 5 and slots 4 which engage respectively with slots 8 and tongues 7 on the side member 6. The front edges of the side members may be formed with outwardly-extending flanges or tongues T which are caused to enter channels 21 or slots in the front member F as the side plates are moved to the proper relative angles with the back-plate, a plate P being then fitted interiorly between the side plates to lock them in position.
Patent GB-207582-A (GB)
Title: Improvements in or relating to valves
IPC: G05D16/10
Filed: 1922-08-02
Abstract: 207,582. Royle, G. E., Royle, A. G., and Royles, Ltd. Aug. 2, 1922. Valves controlled by pilot or relay valves.-A relief valve, reducing valve, surplus pressure valve, or make-up valve of the kind actuated by fluid pressure under the control of an auxiliary valve has the auxiliary valve actuated in both directions by adjustable tappets. In the form shown, the main valve a is coupled to a piston d subject to steam pressure admitted through a pipe under the control of a valve t and exhausted through a valve u. These valves are mounted on a common spindle connected to a piston actuated by hydraulic pressure from an overhead tank under the control of a valve k. This valve is moved by adjustable tappets m<1>, m<2> actuated by the main conduit pressure acting in a spring- loaded diaphragm. In a modification in which the main valve is actuated hydraulically, the valves t, u are replaced by two separately actuated valves, or a permanent leak and single drain valve may be used.
Patent GB-255251-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/06
Filed: 1925-08-22
Abstract: 255,251. Dunhill, Ltd., A., and Dunhill, V. Aug. 22, 1925. Tobacco pipes.-A plug 6 is secured inside the bowl for preventing the clogging of the smoke passages. The plug is secured by a thin flange 4 which is expanded into a recess 8 in the bowl.
Patent GB-875786-A (GB)
Title: Metal-containing azo dyestuffs derived from dihydrazones and their production and use
Inventor: BAUMANN HANS
IPC: C09B27/00
Filed: 1958-07-02
Abstract: The invention comprises metal complexes of dihydrazones of formula:- <FORM:0875786/IV(c)/1> where A is a benzene or naphthalene residue and R1 and R2 are aliphatic, araliphatic, cycloaliphatic, aromatic or heterocyclic residues.  They are made by metallizing the dye obtained by condensing an arylazo-malonodialdehyde with a carboxylic acid hydrazide in the mol ratio of 1 : 2.  The metallizing agent may be present during condensation.  The dialdehydes may contain substituents such as halogen atoms or nitro, alkyl, alkoxy, acylamino, sulpho, sulphonic and carboxylic acid amide (the latter may be substituted) carboxylic acid, alkyl- and arylsulphone, arylazo, hydroxy and carboalkoxy groups. Metallization may be effected during the condensation.  Metals of the first, sixth and eight sub-groups of the Periodic System especially nickel, copper, cobalt, chromium and zinc are mentioned.  The products may contain water or solvent of crystallization.  The dyes colour natural and synthetic fibres especially those of polyamides.  Wool, cellulose ethers and esters, lacquers and plastics may also be coloured. Examples are provided of the preparation of the dyes representative of the dialdehydes being 4-aminosulphonyl-, -sulpho-, -nitro- and -chloro-and -hexamethylene-iminosulphonylphenylazomalonodialdehydes, benzene-1 (azo) 4-benzene-1 (azo)-2-malonodialdehyde and naphthyl-1(azo) 2-malonodialdehyde and of the hydrazides being benzhydrazide and its 4-methoxy derivative, isonicotinic acid hydrazide, salicyl hydrazide, formylhydrazide and 2-naphthol- 3-carboxylic acid hydrazide and the use of the dyes in colouring polyamide fibres in red, blue and yellow shades.
Patent GB-1254002-A (GB)
Title: Improvements in or relating to pneumatic-mechanical transducer
Inventor: RICKARDS FRANCIS CECIL
IPC: F15B5/00
Filed: 1968-05-03
Abstract: 1,254,002. Fluid-pressure servosystems. KENT INSTRUMENTS Ltd. May 2, 1969 [May 3, 1968], No.21224/68. Heading G3P. A flapper 11 receiving an input at 16, e.g. from the pressure-difference sensor disclosed in patent 21222/68 co-operates with nozzle 14 to produce a control pressure which is fed to a relay (39) connected to feedback bellows 22. The latter positions a primary lever 20 which is pivoted at its left-hand end and is nominally coplanar with the flapper, and this lever positions a secondary lever 30 by means of a pin 35 adjustable along slot 34. Lever 30 is pivoted at its right-hand end and is biased by spring 37 so as to maintain pin 35 in abutment with the bellows; also, lever 30 is connected by flexure 38 to the left-hand end of flapper 11 so as to reset the latter. An RC provision in the nozzle supply provides dead-beat response to a step input, and a capillary in the line to bellows 22 introduces a slight derivative action. Zero adjustment is by means of spring 24 which is adjustable by screw 26 and lever 28. Coarse and fine span adjustments are effected respectively by pin 35 and eccentric shaft 36 supporting bellows 22. Lever 20 is of stress-free beryllium-copper to avoid bending in response to temperature changes.
Patent GB-614592-A (GB)
Title: An automatic sponge for guns
IPC: B08B9/057
Filed: 1946-07-16
Abstract: 614,592. Sponging guns. GANIN, V. A. July 16, 1946, No. 21244. [Class 92 (ii)] [Also in Group XXVIII] A progressive reciprocating movement along the gun barrel 10 is given to a two-part cleaning brush 1, 5 by a steam or compressed airoperated piston and cylinder device mounted in the rear brush 5, the piston rod 4 being connected to the front brush 1. The tufts of the brushes bear against the barrel bore at an inclination such that, during the forward stroke of the piston, forward displacement of the brush 1 is permitted whilst backward movement of the brush 5 is resisted and vice versa on the return stroke. Forward motion of the rear brush during the return stroke of the piston is controlled by a rope 8 wound on a winch. Exhaust steam from the engine may be used to soften the carbon deposit in the gun barrel.
Patent GB-300308-A (GB)
Title: Improvements in press dies for the manufacture of whole steel vehicle wheels
IPC: B60B31/00
Filed: 1927-08-12
Abstract: 300,308. Owen, A. E., and Downs, R. W. Aug. 12, 1927. TVheels.- In vehicle wheels, built up of two similar parts each of which is stamped to form spoke members, the parts then being joined by channelled strips engaging grooves in adjacent spokes and in the intervening part of the hub, the jointing grooves are formed by dies a<1> which are carried by a bolster b<1> and operate through a spring-pressed stripper plate s, in conjunction with dies a seated in a fixed bolster b. The dies a are of hollow triangular form, the radial sides being shaped on their upper surface to conform to the spoke section. The vertical wearing surface of the dies a is constituted by spring steel inserts f, Fig. 5 held in the die by dovetail edges g, Fig. 1 and a rabbeted bottom plate h. The upper die bolster is guided in the lower by pins x and spring-pressed members m are provided within the dies a to hold the work during its formation and to eject it after the working operation. The stripper s may be shaped to enter the spoke-grooves or may be fitted with ribs w for this purpose. The dies may be duplicated to form all the recesses on the wheel spokes at a single stroke. A plug k on the lower bolster centres the work.
Patent GB-981780-A (GB)
Title: Improvements in digital data storage systems
Inventor: OWEN CHARLES EDWARD
IPC: G11C11/06
Filed: 1960-06-17
Abstract: 981,780. Digital data storage; microprogramming. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 12, 1961 [June 17, 1960], No. 21314/60. Headings G4A and G4C. On selecting an address in a storage matrix 1 of magnetic cores the next address is set up in a selection register. Register 2 selects a column of matrix 1 and the column wires are threaded through the cores of the selection register 2 so as to set the cores A 1  to A 5  to represent the column selected less one, the cores B 1  to B 8  to represent the same column, and the cores C 1  to C 8  to represent the column selected plus one, as illustrated for the fifth column. The outputs of the cores are gated by a strobe signal on line 9 to a decoder 10 which marks one out of sixteen lines. The cores in each row of the register take values according to the 1, 2, 4, 8 code. To select a column of the matrix 1, one of the transistor switches 6 is closed and a full read pulse is given to all the cores of register 2 by means of winding 4, together with a half-write pulse on winding 5a which is effective only on that row of the register associated with the closed switch 6. The effect is that two of the rows of register 2 are cleared. The pulse on winding 5a stops and a strobe pulse issues, permitting the setting of the uncleared row to be read to decoder 10 and selecting one of the column lines of matrix 1. The marking of the column line causes all three rows of the register to be set. A switch 6 is then closed, perhaps according to the information read from matrix 1, and the process repeated. The invention is applied to microprogramming in which a microinstruction contains the address of the next microinstruction.
Patent GB-788714-A (GB)
Title: Improvements in or relating to drive mechanism
Filed: 1956-07-10
Abstract: 788,714. Change-speed gear. SUNDSTRAND MACHINE TOOL CO. July 10, 1956 [Aug. 3, 1955], No. 21319/56. Class 80 (2). [Also in Group XXXVII] Drive mechanism for the spindle 11 of a milling machine comprises a three-phase reversible electric motor 29 driving through belt gearing 30 to a shaft 25 in turn driving through a gear train 35, 34 to a shaft 31, the shafts 25, 31, Fig. 1, being equidistant from a shaft 40 driving through a gear-train 49, 20 to the spindle 11 and either the shaft 25 driving the shaft 40 directly through a pick-off gear train 44, 45, as shown, or, by removing the pick-off gear 44 from the shaft 25 and placing it on the end of the shaft 31 so that it again meshes with the pickoff gear 45, also driving through the step-down gear train 35, 34. The introduction of the additional gear train 35, 34 produces a reversal of the direction of rotation of the spindle 11. To neutralize this, a nut 48, securing the pick-off gear 44 to the shaft 25 or the shaft 31, cooperates either with a switch 55 or with a switch 56 mounted in a hinged cover-plate 57 to control the direction of rotation of the reversible electric driving motor 29. Thus the spindle 11 is always driven in the same direction, without regard to the position of the pickoff gear on its two shafts. Closure of one or other of these switches 55, 56, Fig. 3, energizes one or other of two relay coils 1CR, 2CR to close switches 1CR1, 1CR2 or 2CR1, 2CR2, so that on depression of a starting push-button switch IPBS, current flows through one of two relay coils SF, SR to close forward and reverse switches SF1 or SR1 in the circuit feeding the motor 29. If, however, it is desired to reverse the direction of rotation of the spindle 11 at any time, a switch MS is operated to put the relay coil 1CR in series with the relay coil SR, and the relay coil 2CR in series with the relay coil SF. In the event of the overload of the electric motor, relay coils 10L, 20L in the forward and reverse circuits feeding the motor open switches 10L1, 20L1. The motor can be stopped by opening the press-button switch 2PBS.