baber/WOPTO huggingface dataset:
Patent GB-877103-A (GB)
Title: Improvements in or relating to the manufacture of vinyl esters
Inventor: MAYNE JOHN EDWIN OAKLEY
Filed: 1957-01-30
Abstract: A process for separating a mixture of vinyl esters from a reaction mixture obtained by an ester-acid interchange reaction between a vinyl ester of a low molecular weight water-soluble aliphatic carboxylic acid and one or more saturated or unsaturated higher molecular weight aliphatic mono- or polycarboxylic acids, containing at least 6 carbon atoms and having only a slight solubility in water, in the presence of a mercury salt, comprises neutralising free low molecular weight acid with alkali metal bicarbonate in the cold, recovering the alkali metal salt of said low molecular weight acid from the reaction mixture, thereafter neutralising the residual higher molecular weight carboxylic acid in the cold with an excess of a concentrated solution of an alkali metal carbonate or hydroxide and separating the mixed vinyl esters from the aqueous solution of the alkali metal salt of the higher molecular weight acid.  The alkali metal bicarbonate may be used as a concentrated aqueous solution or slurry and the alkali metal salt of the low molecular weight acid may be separated as a solid p  or in aqueous solution according to the proportion of water present.  The bicarbonate treatment may be effected in a plurality of stages.  The mercury salt may be removed from the ester product by reduction to metallic mercury, e.g. with hypophosphorous acid, sodium hypophosphite or sodium hydrosulphite, or as zinc amalgam. The ester of the lower molecular weight acid, which is preferably used in excess, may be stripped from the higher esters.  Specified mercury catalysts are mercury sulphate and mercuric salts of aromatic sulphonic acids.  Examples described the preparation and separation of vinyl esters from distilled coconut oil fatty acids, behenic acid, adipic acid and sebacic acid. Specification 827,718 is referred to.
Patent GB-1253491-A (GB)
Title: Improvements in and relating to soldering apparatus
IPC: B23K3/08
Filed: 1970-01-23
Abstract: 1,253,491. Soldering apparatus. E. ROTHENBERGER. 23 Jan., 1970 [23 Jan., 1969], No. 3303/70. Heading B3R. Soldering apparatus having a torch working on acetylene/air mixtures comprises a support frame adapted to receive an acetylene cylinder 4, an equipment box 12, a carrying handle 15 mounted on said frame and a standing support 19 to ensure a predetermined inclination when the apparatus is supported on the ground. A built in economy valve is provided on the acetylene cylinder and atmospheric oxygen is fed to the torch on the Bunsen burner principle. The supporting frame preferably has two annular bands 2,3 joined together by a bar 7 and one of which is provided with the standing support 19. The handle 15 is held in bearing supports 13, 14 on the frame so that the handle may be pivoted.
Patent GB-1442268-A (GB)
Title: Prostanoic acid derivatives
IPC: C07C405/00
Filed: 1974-01-24
Abstract: 1442268 Prostaglandins MERCK PATENT GmbH 24 Jan 1974 [3 Feb 1973 24 Dec 1973] 03385/74 Heading C2C Novel compounds of Formula I (in which R<SP>1</SP>=H or C 1-4  alkyl, A= -CO- or -CH(OH)-, n=4 to 7, k=1 to 5, p=0 or 1, and the wavy lines indicate the α or # configuration) and physiologically compatible salts thereof, are prepared by reacting a corresponding compound in which COOR<SP>1</SP> is a functionally changed carboxylic group and/or A is a functionally changed -CO- or -CH(OH)- group, which functional groups are convertible to the original groups by solvolysis or hydrogenolysis, with a solvolysing or hydrogenolysing group, or reacting a compound of Formula II or a salt thereof, with a compound of formula wherein M is an alkali metal or MgCl, MgBr or MgI and each of a, b, c and d is 0 or 1 provided that (a+b)=(c+d)=(a+c)=1. A resulting compound I (A = -CO-) may be reduced to a compound I (A= -CHOH-) or a compound I (A= -CHOH-) may be oxidized to a compound I (A= -CO-) and/or a free acid (R<SP>1</SP> = H) may be esterified, and/or an ester (R<SP>1</SP> = alkyl) may be saponified or transesterified, and/or a compound I may be resolved into its racemates and/or enantiomers, or converted to a salt. 9# - Hydroxy - 15 - oxo - 13 - prostenoic acid ethyl ester is prepared by reacting dimethyl-(2- oxoheptyl)-phosphonate with ethyl 7-(2-formyl- 5-hydroxycyclopentyl)-heptanoate. 9,9 - Ethylenedioxy - 15 - hydroxy - 15 - methyl- 13-prostenoic acid ethyl ester is prepared by reacting 9,9 - ethylenedioxy - 15 - oxo - 13- prostenoic acid ethyl ester with MeMgI. Pharmaceutical compositions having vasodilatory, anti-inflammatory, diuretic and bronchial relaxing properties and other prostaglandin-like properties, for enteral, parenteral, or topical administration, comprise one of the above novel compounds together with a pharmaceutical carrier.
Patent GB-547950-A (GB)
Title: Improvements in or relating to presses for making metal tubular blanks or hollows
IPC: B21J9/04
Filed: 1941-03-14
Abstract: 547,950. Billet-piercing. WELLMAN SEAVER ROLLING MILL CO., Ltd., and MARNIE, J. March 14, 1941, No. 3524. [Class 83 (iv)] In a press for billet-piercing the punch 13 or billet container 6 or each of these is carried by a slide 8 which is guided by plane surfaces 32 of the frame 3. These surfaces may be formed on angular guides 31 adjusted by screws 38 and secured by bolts 35 to the frame 3 and may engage wear strips 36 of the slide 8 which may be operated hydraulically. The press may also include the constructive features claimed in Specifications 547,951 and 547,952.
Patent GB-866624-A (GB)
Title: Improvements in drip trays for refrigeration apparatus
Inventor: SEARLE LESLIE WILLIAM
IPC: F25D21/14
Filed: 1959-02-02
Abstract: 866,624. Electrically heated drip trays. SEARLE MANUFACTURING CO. Ltd. Jan. 28, 1960 [Feb. 2, 1959], No. 3560/59. Drawings to Specification. Class 39(3). [Also in Group XIII] A drip tray for use in a refrigerator is made of a moulded synthetic resin and has embedded in it an electric heating element. The element may take the form of a wire with or without an insulating sheath, or it may comprise a mat of glass fibres, individual fibres being uniformly coated with colloidal graphite.
Patent GB-894825-A (GB)
Title: Improvements in or relating to conveyor assemblies
Inventor: SYKES THOMAS ROBERT
IPC: B65G47/82
Filed: 1958-05-05
Abstract: 894,825. Endless conveyers. TORONTO STAR Ltd. May 5, 1958, No. 3587/62. Divided out of 894,824. Drawings to Specification. Class 78 (1). The subject-matter of the Specification is the same as that described in Specification 894,824 with reference to Figs. 6-20 of the drawings accompanying the latter Specification, the claims being directed to features appearing only in these Figures. Specification 870,483 also is referred to.
Patent GB-704826-A (GB)
Title: Apparatus for extruding metal sections
Inventor: BRIDGE ARCHIBALD CLAUDE
IPC: B21C33/00
Filed: 1950-03-03
Abstract: 704,826. Extruding. CRITTALL-LUXFER, Ltd. Feb. 27, 1951 [March 3, 1950], No. 3615/52. Divided out of 704,751. Drawings to Specification. Classes 83 (2) and 83 (4) Making pipes ; stretching. - Apparatus for the cold percussion extrusion of metal sections, for example, metal tubing, comprises a ram, a die mounted to project axially from the machine frame, means for holding a metal slug in the operative position for extrusion, means for driving the ram towards and away from the die and a mechanical grab which, on completion of extrusion, is moved to grab the extruded section and immediately thereafter is moved away from the die to stretch and straighten the extruded section prior to the discard being severed from the face of the die. The apparatus and its operation is fully described in Specification 704,751.
Patent GB-1203901-A (GB)
Title: Improvements in or relating to furnaces
IPC: F27B21/06
Filed: 1969-01-22
Abstract: 1,203,901. Conveying furnace charges. LUMMUS CO. 22 Jan., 1969 [22 Jan., 1968], No. 3662/69. Heading F4B. Granular material is conveyed through a kiln by a series of platforms 21 linked together in pairs by rocking arms 31, 32 and links 33, and oscillated about axes 24 by links 36 pivotally connected at 35 to arms 32 and 33 and at 38 to a reciprocating drive rod 37, so that as platform A moves upwardly platform B moves downwardly and vice versa. The platforms comprise a metal base 22 with refractory upper portion 23, are thicker at their upstream ends and may be fluid cooled. They may be formed entirely of a heatresisting metal and may also have side walls. In a modification (Figs. 3 and 4) alternate platforms may be oscillated by separate drive rods. Another modification (Fig. 5) has pairs of platforms pivotally linked to the bottom corners of an inverted triangular rocker plate oscillated about its base by a link connecting its apex to a drive rod.
Patent GB-764777-A (GB)
Title: Analytical balance
IPC: G01G1/00
Filed: 1955-02-08
Abstract: 764,777. Weighing-apparatus. METTLER, E. [trading as METTLER FABRIK FœR ANALYSENWAAGEN, E.]. Feb. 8, 1955 [Oct. 29, 1954], No. 3752/55. Class 143. Air damping for the unsymmetrical beam 3 of a micro-balance is provided by a fixed cylinder 15, in which moves a damping disc 13 attached to the longer arm of the beam by a holder 12. The latter passes with clearance through a longitudinal slot 17 in the side of the cylinder which has a removable top 18. The plane of the disc passes through the beam pivot, and, in the correct balance position, the disc is symmetrically disposed in the cylinder. The clearances of the disc and holder may be varied by moving the cylinder relative to its support 7 on adjusting screws (not shown).
Patent GB-806276-A (GB)
Title: Improvements in or relating to electronic counting networks
IPC: H03K23/82
Filed: 1957-02-04
Abstract: 806,276. Electronic counting-apparatus. SIEMENS & HALSKE A.G. Feb. 4, 1957 [Feb. 4, 1956], No. 3827/57. Class 106 (1). [Also in Group XL (c)] In an electronic counting chain in which each stage comprises a gas discharge tube having a cathode, an ignition electrode and main and auxiliary anodes so as to provide a main discharge path and an auxiliary path for preionizing the gas in the main path, the auxiliary anode of each tube is connected via a resistance R3 to the positive terminal of the main anode/ cathode voltage source, the ignition electrode of each tube (except possibly the first) is connected via a resistance R4 to the auxiliary anode of the immediately preceding tube, and a pulse input terminal is coupled to all the tubes. As shown, the tubes are connected in a ring, the ignition electrode of the first tube T being connected to the auxiliary anode of the last tube. The auxiliary discharge paths are all ignited, so that the connections from the auxiliary anodes provide a stable positive bias for the ignition electrodes of succeeding tubes; and for that tube which is conductive in its main discharge path, an additional bias is provided owing to the potential drop across cathode resistance R1, whereby when the next positive input pulse is applied from I via condensers C2 to all the ignition electrodes, the succeeding tube only is fired, and the previously conductive tube is extinguished owing to common anode resistance R2. If a ring counter is not required, a tapping on resistance R4 is connected through a rectifier to the auxiliary anode of another tube. In another embodiment (Fig. 2, not shown) the input pulses are applied to the cathodes, and the conductive tube is extinguished before the succeeding tube is fired, the main anodes having separate supply resistances and being each connected via a condenser to the ignition electrode of the succeeding tube. To prevent the auxiliary discharges being extinguished, the input pulses are applied also via condensers to the auxiliary anodes. Various additional circuit features are described including means for reducing the delay occurring at initial starting. Reference is made to decimal and to binary counting.
Patent GB-825811-A (GB)
Title: Improvements in and relating to bottom-supported tubulous vapour generators
IPC: F22B37/20
Filed: 1958-02-06
Abstract: 825,811. Supporting steam boilers. BABCOCK & WILCOX CO. Feb. 6, 1958 [Feb. 7, 1957], No. 3851/58. Class 123(2) In a bottom-supported, two-drum water tube boiler having a furnace 10 lined with generating tubes and fired by a chain grate stoker 35 which is disposed at a level below that of the lower drum 30 and wherein gases flow laterally from the furnace into a pass 20 locating spaced banks 32, 34 of boiler tubes connecting the lower drum with the upper drum 28, relative movements due to thermal expansion between different pressure parts of the boiler are minimized by arranging for bottom supports for the parts at substantially the same level. Thus the lining tubes of the furnace front and side walls 12, 16 are supported by their respective lower headers 42, 48, the header 42 bridging the front ends of the side headers 48 which rest on columns 68 whilst the part made up of the drums 30, 28 and the tube banks 32, 34 is supported by upright tubes 60 spaced along the length of the drum 30 and connecting it to the rear wall header 58 which is disposed at about the same level as the headers 48 and which rests on columns 62. The tubes 60 also serve as downcomer tubes supplying water to the header 58. From this header generating tubes rise to line the rear furnace wall 14 and are thereabove arranged to form a screen across the gas outlet ahead of the tube bank 32.
Patent GB-1503193-A (GB)
Title: Printers
IPC: B41J9/28
Filed: 1976-01-28
Abstract: 1503193 Selective printing W & T AVERY Ltd 28 Jan 1976 [29 Jan 1975] 3856/75 Heading B6F In an on-the-fly printer each hammer 12 which is pivoted at 20 is selectively unlatchable so as to engage and be impacted by continuously rotating cam 30 against character drum 10. There may be one cam 30 common to all the hammers 12 or individual cams 30. Unlatching is achieved by energizing solenoid 26 to withdraw latching member 18. Impact adjustment is effected by a vertically adjustable stop bar 34. The bar 34 and hammers 12 (one of which is magnetic) form a magnetic circuit to stop bouncing of the hammer 12 when it contacts the bar.
Patent GB-1417096-A (GB)
Title: Automatic telephone answering apparatus
IPC: G11B31/00
Filed: 1973-01-25
Abstract: 1417096 Substation equipment PIONEER ELECTRONIC CORP 25 Jan 1973 [26 Jan 1972] 3957/73 Heading H4K In a telephone answering machine in which an incoming message can be recorded whilst the initial announcement message is still being transmitted, the endless loop answering tape T1 is provided with two spaced heads H3, H1. The output from the first head H3 in the direction of tape movement is amplified at 5 and is effective whenever it exceeds a predetermined limit to actuate switch 6. The latter enables an amplifier 1 after a delay equivalent to the separation d between the two heads so that the signal portion exceeding the limit (and thus assumed to be a recorded message signal) is reproduced into the telephone line 3. Any incoming message on line 3, as well as any reproduced message is recorded on tape T2. Since the announcement circuitry is only connected to line during the actual time that there is a valid signal to be transmitted, any incoming message occurring during the overall announcement period is only swamped during this time.
Patent GB-576044-A (GB)
Title: Improvements in the production of activated carbon and to its use for treating fuel gases
IPC: C01B31/12
Filed: 1944-03-04
Abstract: 576,044. Carbon. HOLMES & CO., Ltd., W. C., NICKLIN, T., and BUCKLEY, F. C. March 4, 1944, No. 4067. [Class 90] Coal high in durain is carbonized in the presence of a salt of nickel or cobalt or chromium, or mixtures thereof, having an anion rich in oxygen, and is then activated with steam. The product is suitable for removing sulphur compound from fuel gases.
Patent GB-689865-A (GB)
Title: Improvements in and relating to the cooling of static electrical condensers
IPC: H01G2/08
Filed: 1951-02-20
Abstract: 689,865. Electric condensers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 20, 1951 [Feb. 22, 1950], No. 4115/51. Class 37. A condenser 1 has a flexible metallic case 3 contained within an outer casing 13, 2 so that on expansion or contraction of the outer casing, due to temperature, the case 3 is always maintained in contact with the outer casing so as to facilitate cooling by conduction. Where a plurality of units 1 are contained in an envelope, spaces are left between them to permit circulation of a filling liquid due to local heating and thus facilitate dissipation of heat to the envelope.
Patent GB-1082801-A (GB)
Title: An improved apparatus for filling sacks or other containers with predetermined quantities, by weight, of free flowing solid material
IPC: G01G13/00
Filed: 1964-01-31
Abstract: 1,082,801. Weighing apparatus. INNES, WALKER (ENGINEERING) CO. Ltd., and G. L. INNES. April 30, 1965 [Jan. 31, 1964; May 6, 1964], Nos. 4133/64 and 18776/64. Heading G1W. In an automatic feed weigher in which a measuring receptacle 15 mounted on one end of a steel-yard 12 provided with counter-weights 13 is so fed with material from a hopper 17 having a solenoid operated shutter 18 that when sufficient material is in the receptacle 15 the steel-yard 12 tilts and operates an electrical circuit to close the shutter 18, there is provided a device which bears on the steel-yard 12 prior to its tilting and which compensates for the material in flight between the hopper 17 and receptacle 15 at cut-off. The device comprises a lever 24 which is pivotally mounted at 23 to brackets 22 attached to a fixed frame 10 and which at one end is provided with an adjustable weight 26 and at the other end is arranged to bear on an L-shaped bracket 27 and aid the receptacle 15 in tilting the steel-yard 12 in opposition to the weights 13. The material is discharged from the receptacle 15 into sacks or like containers by operating a trap door 16 provided at the base of the receptacle 15. The trap door 16 is either manually controlled or automatically operated by an electromagnet connected in an electrical circuit comprising solenoids for suitably opening and closing the shutter 18 of the hopper 17 and two switches actuated respectively by the tilting of the steel-yard 12 and the opening and closing of the trap door 16. The hopper 17 may be supplied with material by a motor controlled conveyer 20.
Patent GB-1047086-A (GB)
Title: Pneumatic ball-type vibromotor
Inventor: FELIXON EFIM ISAAKOVICH
IPC: B06B1/20
Filed: 1964-01-31
Abstract: 1,047,086. Vibratory mechanisms. NAUCHNO-ISSLEDOVATELSKY U KONSTRUKTORSKY INSTITUTE, PRIBOROV I SREDSTV IZMERENIJA MASS. Jan. 31, 1964, No. 4141/64. Heading F2X. A ball-type vibrator comprises an outer race ring 4 around which a ball 6 is driven under the influence of compressed air supplied through tangential nozzles 9 in a head 7 located at the centre of the ring 4. A split housing 1 surrounds the ring 4 and is provided with lugs 15 which are coupled together by bolts 17. A plug 12 is screwed into the head 7 and carries a cover 3 provided with exhaust ports 10. Compressed air is supplied to the head 7 through a pipe connection 8.
Patent GB-291331-A (GB)
Title: Improvements in and relating to turret lathes
IPC: B23B9/02
Filed: 1926-12-20
Abstract: 291,331. National Acme Co., and Drissner, A. E. Dec. 20, 1926. Divided on 287,248. Lathes. - In a multiple-spindle turret-lathe such as a screw machine, the work turret 13 carrying five rotary spindles 14 is provided with a locking-bolt and a latch bolt located below the centre line of the turret and at opposite sides and opposite ends thereof. The front end 10 of the bed carries a bearing-bracket 15 within which is journaled a tubular shaft 16 enclosing the driving-shaft 17 and carrying a five-sided tool-carrier 18. A bracket 19 depending from the rear of the tool carrier is provided with a foot 20 guided on a hardened plate 23 secured to the flattened top surface 21 of the curved bed 11. A shaft 26 removably secured to the bracket 19 has a bearing in the bracket 15 and is operated to reciprocate the tool slide by means of a cam 32 on the main cam shaft 33, the forward movement being positively limited by adjustable lock nuts 30 mounted on a screwed shaft 28 passing freely through the member 15. The turret is indexed by a cam-operated lever 81 in the manner described in Specification 251,315. The locking-bolt 92 sliding in a boss on the turret casing 12 coacts with a series of recesses 93 and is operated by cams 88 - - 90 and lever 85. The bolt 92 is first moved inwardly by the cam 89 to arrest the rotation of the turret whereupon the cam 88 comes into operation to force the bolt on to its seating to prevent vibration or recoil of the turret. At the opposite end of the turret is located a spring-pressed latch bolt 95 which coacts with the locking bolt in holding the turret securely during working operations.
Patent GB-1177454-A (GB)
Title: Improvements in Extrusion Heads
Inventor: ODAM NORMAN EDWARD
IPC: B29C48/09
Filed: 1968-01-26
Abstract: 1,177,454. Adjustable extrusion die heads. ESSO RESEARCH & ENG. CO. 24 Dec., 1968 [26 Jan., 1968], No. 4191/68. Addition to 1,126,100. Heading B5A. The extrusion die head described in Specification 1,126,100 is modified by the provision of rings 23 on die member 10 in addition to plates 13 on die member 11. Addition or subtraction of such rings and plates allows variations in diameter of the extruded tubing to be made. The plates and/or rings may be oblate.
Patent GB-286713-A (GB)
Title: Improvements in golf club shafts
IPC: A63B53/10
Filed: 1928-02-10
Abstract: 286,713. Swingrite Co., Inc., (Assignees of Nicholls, G. E.). March 11, 1927, [Convention date]. Shafts.-A shaft, 10 particularly for golf clubs is composed of a plurality of sections 13 of bamboo and a. single section 15 of hickory immediately adjacent the clubhead 11.
Patent GB-254628-A (GB)
Title: Inflatable toys
IPC: A63H27/10
Filed: 1926-02-15
Abstract: 254,628. Mulholland, J. F. Feb. 15, 1926. Inflatable toys.-A balloon 10 is secured to a weighted base 13 by the inflating tube 11 which after being passed through an annular member 14 and through a hole 12 in the base, is secured by knotting. The balloon may be constricted by a band 15 representing a neck-tie, and may be provided with projecting members 18 representing hands, the whole being marked to represent a human figure.
Patent GB-1109171-A (GB)
Title: Improvements in or relating to vehicle driving means
Inventor: POWELL ERNEST FREDERICK
IPC: B62D57/00
Filed: 1964-02-01
Abstract: 1,109,171. Propelling motor vehicles. ELLIPTICAL DRIVES Ltd. 25 Jan., 1965 [1 Feb., 1964], No. 4365/64. Headings B7D and B7H. Propulsion means for a motor vehicle comprises at least one pair of driving wheels which are mounted on opposite sides of the vehicle and each of which is connected to a driving shaft so as to rotate about an axis parallel to but offset from the wheel axis. In Fig. 1 a six-wheeled vehicle includes four circular driving wheels 19, 20, 21, 22 eccentrically connected to shafts 19a, 20a, 21a, 22a driven through gear trains 23, 24 and half-shafts 17, 18 from a differential 15. Level motion of the vehicle is obtained by positioning the wheels on each side to rotate with a 180 degrees phase difference and by mounting the shafts 19a, 20a, 21a, 22a in gear casings 25, 26 pivotable about the axis of the half-shafts 17, 18. In Fig. 4 an agricultural tractor has driving-wheels 40a, 40b eccentrically mounted with a 180 degrees phase difference on a common axle 41 which is connected to the tractor chassis so as to oscillate about a longitudinal axis by pivot means 38a and longitudinal and transverse levers 48, 49, 52. Each wheel may be selectively variable from an eccentric to a concentric position relative to its drive-shaft by means (Figs. 6, 7, not shown).