baber/WOPTO huggingface dataset:
Patent GB-864059-A (GB)
Title: Improvements in sensitive or quickly responsive servo-control mechanisms for moving parts of machines
IPC: F15B11/08
Filed: 1958-06-28
Abstract: 864,059. Hydraulic apparatus. MASSEY Ltd., B. & S., and FOSTER, J. Sept. 28, 1959 [June 28, 1958], No. 20808/58. Class 69 (2). [Also in Group XXII] A control mechanism for moving parts of machines, such as the valve gear of fluid-pressure operated hammers, presses or like machines comprises means for slidably moving a sleeve 29, Fig. 6, on an upper fixed ram 27 and a lower movable ram 28, and a space 291 between the rams connected to a source of pressure fluid and a reservoir, the movement of the sleeve controlling the flow to the reservoir and the movement of the lower ram. The source of pressure fluid is connected to an inlet 31 leading to the interior of the upper ram 27 and the space 291, and in the neutral position, as shown, the fluid passes through an outlet 47 to a reservoir. When the sleeve is moved downwardly by a footoperated treadle, the sleeve slides over the rams and the flow from the space between the rams is restricted, the resulting rise in pressure moving the lower ram downwards to operate the valve on the machine. The upper end of the lower ram has interconnected passages 281, 282 which provide a dashpot effect and eliminate shocks caused by sudden downward movements of the sleeve. In another embodiment, the downward movement of the sleeve 79, Fig. 12, is effected by a pivoted hand lever 87 and the resulting downward movement of the lower ram 81 displaces fluid at its lower end to operate a piston- and cylinder device 86 connected to the valve of the machine.
Patent GB-995409-A (GB)
Title: Pipe coupling
IPC: F16L21/00
Filed: 1964-05-20
Abstract: 995,409. Pipe joints. CORNING GLASS WORKS. May 20, 1964 [May 21, 1963], No. 20849/64. Heading F2G. A coupling for joining two pipe sections 11, 12, particularly of glass, comprises means for compressing an elastic annular gasket 14 radially with respect to the pipe sections, said gasket having an annular inwardly-projecting rib 16 extending between the opposed ends of the pipe sections which is flanked on either side by at least one annular inwardly-projecting rib 17 or 18 slanted towards the first rip. In the embodiment shown, the gasket 14, preferably of butadiene-acrylnitrile synthetic rubber, is compressed by a stainles steel slotted band 13. As a result, the sawtooth ribbed surfaces 17, 18 are deflected towards the central rib 16 thereby drawing the pipe ends in endwise abutment against said rib, which is clad in a protective liner of polytetrafluoroethylene. The sawtooth slanted ribs may be of triangular section either having proximal faces with respect to the central rib, as well as distal faces, inclined at acute angles to the pipe axis as shown or having proximal faces inclined at obtuse angles to the pipe axis as illustrated in a modification, Fig. 4 (not shown). Alternatively, the ribs may be of curved section with the average slope of the proximal face with respect to the central rib exceeding that of the distal face.
Patent GB-941672-A (GB)
Title: A proces for coating electrical conductors
IPC: H01B3/44
Filed: 1961-06-09
Abstract: Electrical conductors are coated by applying thereto at least one layer of an aqueous dispersion of a copolymer of (i) 50 to 80% by weight of acrylonitrile, (ii) at least 10% by weight of a C1-C12 aliphatic monohydric alcohol ester of acrylic or methacrylic acid, and (iii) 0,1 to 15% of a monoethylenic carboxylic acid amide, or an N-methylol derivative of such an amide, or a Mannich base of an N-methylol ether of such an amide, or an acrylic or methacrylic acid amide of an aminobenzoic acid, and then heating the layer to a temperature of 100  DEG  to 300  DEG C. The copolymers may contain minor proportions of other monomers. Also present in the coating compositions may be solvents, eg. dimethyl formamide, glycol carbonate and tetramethylene sulphone, and a water-soluble phenol formaldehyde resin.  The electrical conductor, e.g. a wire, may be coated by a process which involves conveying it through the copolymer a plurality of times and hardening the resulting layer by passing the wire through a drying shaft having a temperature of 280  DEG  to 300 DEG C, at a withdrawal speed of six to ten metres per minute.  The examples describe the application to copper wire of aqueous dispersions comprising: (1) an acrylonitrile-butyl acrylate-methacrylamide copolymer and dimethyl formamide; (2) an acrylonitrile-butyl acrylate-methacrylic acid-methacrylamide copolymer and dimethyl formamide; (3) an ammonia-neutralized copolymer of acrylonitrile, butyl acrylate, methacrylic acid and the methyl methylol ether of methacrylamide; (4) an ammonia-neutralized copolymer of acrylonitrile, butyl acrylate, methacrylamide and the methacrylic amide of p-aminobenzoic acid, dimethyl formamide and a water-soluble phenol-formaldehyde resin; and (5) an ammonia-neutralized copolymer of acrylonitrile, butyl acrylate, methacrylamide and the methacrylic amide of o-aminobenzoic acid, dimethyl formamide and a water-soluble phenol-formaldehyde resin.
Patent GB-915767-A (GB)
Title: Improvements in or relating to the production of thermoplastic products derived fromdi-epoxy compounds
Inventor: KREPS ROBERT WILLEM FREDERIK
IPC: C08G59/62
Filed: 1960-06-15
Abstract: Thermoplastic products are prepared by reacting (i) a dihydroxy compound with a substantially equimolar amount of (ii) a diepoxy compound, where either (i) or (ii) or both contain an SO2 group joining two aromatic nuclei, in the presence of an alkaline compound as catalyst, and in a solvent in which (i), (ii) and the product are at least partly soluble and which is substantially non-reactive with (i) or (ii), the reaction mixture being substantially free from water, the nature and quantity of the solvent and the temperature being such that the product remains dissolved in the mixture until the product has an intrinsic viscosity (measured in dimethyl formamide) of at least 0,4.  The only dihydroxy compounds disclosed are all phenols, and the only epoxy compounds disclosed are all diglycidyl ethers of dihydric phenols: phenols suitable for (i) or (ii) are (a) di-phenylol sulphones and (b) 2,2-di-p-phenylol propane, di-p-phenylol methane, hydroquinone, resorcinol, 3,31- and 4,41-dihydroxy diphenyl and unspecified dihydroxy diphenyl ethanes and dihydroxy naphthalenes.  List of suitable solvents are given, suitable classes being ketones, nitriles, nitro compounds, sulphoxides and sulphones; acetophenone and tetramethylene sulphone are used in the examples.  The preferred catalyst is the alkali (e.g. Na), alkaline earth or quaternary ammonium salt of the dihydroxy compound.  In Examples 3 and 4 further polymerization is prevented by the addition of p,p1-diphenylolsulphone.  The polymer is obtained in the form of a crystalline powder, and may be drawn, spun or woven to produce threads, fibres or fabrics.
Patent GB-829235-A (GB)
Title: Improvements in or relating to vibratory electric motors
IPC: H02K7/065
Filed: 1957-07-03
Abstract: 829,235. Ratchet gearing. LIONEL CORPORATION. July 3, 1957 [April 5, 1957], No. 21029/57. Class 80 (3). [Also in Group XXXV] In a vibratory electric motor 10 comprising an electromagnet 44 vibrating an armature 50 a mechanism to convert the vibrations into unidirectional rotary motion comprises a rotatably mounted wheel 18 having looped around at least part of its periphery a belt 62, one end of which is resiliently anchored while the other end extends into a tubular clamping member 64 fixed to the armature 50, this end being anchored to the member 64 at an area 67 remote from its entry from the wheel 18 into the member, and a toothed speed reducing gearing 17 is connected to the wheel 18 to increase its turning power. The armature 50 is supported on a resilient spring arm 46 riveted at 59, 59<SP>1</SP> to a magnetic bracket 26 which supports the electromagnet 44 and is adjustably secured to a supporting frame 12 by a screw 36. Depending on the frictional characteristics of the belt and wheel the belt may be looped partially, once, or several times round the wheel 18, and its resilient anchoring may comprise a coil-spring 68 fastened to the bracket 26. The belt may be of cotton, rayon, nylon, leather, metal, wire or synthetic plastic material.
Patent GB-1068697-A (GB)
Title: Improvements in or relating to floor treating machines
Inventor: VOS JAN DE
IPC: A47L11/14
Filed: 1965-05-18
Abstract: 1,068,697. Floor cleaning machines. R. G. DlXON & CO. Ltd. March 3, 1966 [May 18, 1965; July 22, 1965], Nos. 21081/65 and 31212/65. Heading A4F. A floor scrubbing, polishing or shampooing machine of the type in which one or more brushes 2 are mounted for rotation about a vertical axis or vertical axes below a drive motor, is provided with an attachment of low height, for cleaning under furniture, and comprising a brush 4 driven from the main machine drive as by a belt 5 or gearing. The brush 4 is rotatably mounted in a frame 6 connected by a detachable pivot pin to a pair of pillars 12 on the machine frame 3.
Patent GB-384680-A (GB)
Title: Improvements in or relating to folding mechanism for use in printing machines
IPC: B41F13/60
Filed: 1931-06-05
Abstract: 384,680. Paper-folding apparatus. HOE & CO., Ltd., R., 109, Borough Road, London.-(Assignees of Tomlin, J. R. ; 910, East 138th Street, New York, U.S.A.) June 5, 1931, No. 21096/32. Convention date, Nov. 3, 1930. Divided on 386,313. [Class 100 (ii).] In paper-folding apparatus for printing- machines, of the type in which blades 73 on a rotary cylinder 29 tuck the paper between rollers 136, 137, the rollers and their driving mechanism are supported by a rigid frame 146 which is detachably mounted in the machine whereby the rollers and their driving mechanism can be removed or replaced in the machine as a unit. The frame 146 is secured by bolts to brackets on the main frame. A gear 53 on the cylinder 29 drives, through a gear train 54, 171, 173, intermeshing gears 174, 175 which respectively engage gears 176, 175<1> on the shafts of the folding rollers 136, 137. Levers 140, 141 pivoted on the shafts 142, 143 of the gears 174, 175 carry the rollers 136, 137, and their lower ends 152 are forked to engage a transverse shaft 149 at each end of the apparatus. Bushings 154 slidable in bearings 150 on the frame 146 are threaded internally to engage corresponding threads 156 on the rod 149 and are normally locked against rotation by spring- pressed blades 165 engaging notches 164 in collars 153 bearing against the levers 140, 142. Collars 155 pressed apart by a helical spring 158 engage the opposite faces of the levers so that by turning the shaft 149, the bushings 154 can be moved towards or away from one another and the distance apart of the rollers 136, 137 adjusted, the spring 158 also permitting the rollers to move apart when the blade 73 tucks a sheet between them. Simultaneous adjustment of both ends of the rollers 136, 137 can be effected by a shaft 159 coupling the shafts 149 together by gearing 161, 163. Independent adjustment of each end of either roller is obtained by releasing the corresponding catch 165 and rotating the bushing 154.
Patent GB-380211-A (GB)
Title: Improvements in or relating to electric accumulators or storage batteries
IPC: H01M50/103
Filed: 1931-07-24
Abstract: 380,211. Galvanic batteries. BRITANNIA BATTERIES, Ltd., 233, Shaftesbury Avenue, London.-(Accumulatoren-Fabrik Akt. - Ges. ; 3, Askanischer Platz, Berlin.) July 24, 1931, No. 21254. [Class 53.] An accumulator with means for preventing the escape of free electrolyte when the cell is shaken or reversed, and with glass wool or other porous material packed between the plates to absorb the. greater part of the electrolyte, is provided with a perforated cage containing floats, the cage being secured to the inner surface of the accumulator walls in a position in which the floats will be inoperative when the accumulator, is in its normal upright position, but will be operated by the layer. of electrolyte above the absorbent when the accumulator is tilted on to its side. In the form illustrated in the drawing, there are a gas vent tube e having a perforated bonnet f, and a cage g containing floats h. The levels of the free electrolyte in the normal and tilted positions of the accumulator are represented by o and l respectively.
Patent GB-513810-A (GB)
Title: Improvements in television receivers
IPC: H03G3/14
Filed: 1938-07-18
Abstract: 513,810. Wireless receivers. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. July 18, 1938, No. 21262. [Class 40 (v)] The volume control 14 of a television receiver varies both the radio-frequency and intermediate frequency gain in such manner that, starting from maximum, the I.F. gain is first reduced, keeping the R.F. gain a maximum, whereafter the R.F. gain is reduced and the I.F. gain is kept constant. The variation may be effected automatically or manually. The Figure shows two conjointly operated gridbias potentiometers the resistances of which are " tapered " in opposite senses, the resistance of the R.F. potentiometer 7 increasing from the point 11 while that of the I.F. potentiometer 8 decreases from 12. The Specification shows that if one position of the sliders 5, 6 represented by 15, 16 is taken as xm and the positions 11, 12 are taken as xo, then for any intermediate position x1 of the sliders the mean arithmetical value of the ratio of is greater over the range x0 to x1 than over x, to xm, R being the R.F. gain and I the I.F. gain. Specification 362,502 is referred to.
Patent GB-1467953-A (GB)
Title: Isocyanato-isocyanurates
IPC: C08G18/00
Filed: 1974-05-14
Abstract: 1467953 Isocyanate-containing isocyanurates VEBA-CHEMIE AG 14 May 1974 [22 May 1973] 21263/74 Heading C2C Isocyanato isocyanurates, e.g. the novel compounds of the Formula I wherein n is an integer and R is a radical of the formula or -CH 2 -C(CH 3 ) 2 CH 2 CH(CH 3 )CH 2 CH 2 - or -CH 2 CH(CH 3 )CH 2 C(CH 3 ) 2 CH 2 CH 2 -, are obtained by the trimerization of aliphatic or cycloaliphatic isocyanates, except monoisocyanates alone, with azindine or its derivatives as catalyst and mono- or di-amines containing three saturated hydrocarbon groups containing 1 to 5 carbon atoms directly attached to the nitrogen atoms, as co-catalyst, the catalyst being destroyed by thermal treatment at 80 to 200C. and the co-catalyst being simultaneously or subsequently separated by distillation.
Patent GB-281374-A (GB)
Title: Improvements in hotplates for gas cookers
IPC: F24C15/10
Filed: 1926-08-30
Abstract: 281,374. Flavel, P. W. Aug. 30, 1926. Hot-plates for gas cookers comprise a frame D having flanges E carrying the grid elements F, and loosely mounted on separate pedestals or columns A, B rigidly and detachably secured to the cooker. In the construction shown, the corners of the hot-plate rest in bearings C on the supporting-columns which have upstanding retaining-flanges. The outer ends of the burners are supported by bars J attached to the loose frame D. The tap rail K is attached to the bearings on the front pedestals, the bearing-faces being formed with air-spaces M to prevent overheating of the top-rail and gas-cocks.
Patent GB-726293-A (GB)
Title: Improvements in or relating to a hoist construction
Inventor: LOCK FRANK JOHN
IPC: B66D3/26
Filed: 1953-08-01
Abstract: 726,293. Chain hoist guide. YALE & TOWNE MANUFACTURING CO. Aug. 1, 1953, No. 21412/53. Class 78(5). A chain hoist block 11 comprises a cast detachable bottom part 22 which guides the chain off on to and off the chain load wheel 10, and which incorporates chain stripper 24.
Patent GB-836884-A (GB)
Title: Cholecystographic agents and the production thereof
IPC: A61K49/04
Filed: 1958-07-11
Abstract: A non-toxic water-soluble salt of a -ethyl-b -(2 : 4 : 6 - triiodo - 3 - aminophenyl) - propionic acid is used in an X-ray contrast agent (see Group VI).  The preparation of the sodium salt and of the ammonium salt from the pure acid using (1) water or (2) aqueous ethanol, and of the sodium salt, with simultaneous purification, from the impure acid is exemplified.  The salts of amines containing not more than eight carbon atoms, such as of diethylamine, diethanolamine, morpholine or methyl-glucamine, are also referred to. Specification 655,096 is referred to.ALSO:An orally-administered X-ray contrast agent for gall-bladder and bile duct examination comprises a non-toxic water-soluble salt of alphaethyl - beta - (2,4,6 - triiodo - 3 - aminophenyl)-propionic acid and a solid pharmaceutical diluent or carrier, such as corn-starch, agar or talc. The salt may be the sodium, the ammonium or the diethylamine, diethanolamine, morpholine or methylglucamine salt.  In an example tablets are made from the sodium salt, in admixture with corn starch, agar, which is granulated using a gelatine/aqueous alcohol solution, dried and tableted after addition of corn starch, agar and talc. Specification 655,096 is referred to.
Patent GB-767823-A (GB)
Title: Improvements in or relating to electromagnetically-operated fluid control valves
Inventor: ORLOFF GEORGE
IPC: F15B13/04
Filed: 1953-08-04
Abstract: 767,823. Valves. BRITISH MESSIER, Ltd., Aug. 3, 1954 [Aug. 4, 1953], No. 21502/53 Class 135. In a three-way selector valve for controlling the supply and discharge of pressure liquid to and from an actuator, e.g. a jack operating an aircraft undercarriage or flap, the pilot valves operating the main supply and discharge valves of the selector valve comprise electricallyactuated valves 31, 32, urged towards seats 29, 30 by springs 37, 38, and connected by tension wires 33, 34 which pass sealingly through glands 35, 36 to opposite ends of a polarized armature 45 pivoted about its centre and under the control of a reversing switch 50. The valve 31 controls communication between the rear of the piston 18 of a piston actuated supply valve 19 and a passage 41 connected to the actuator connection 14 and the valve 32 between the rear of the piston 26 of a piston-actuated discharge valve 25 and a passage 42 connected to the discharge connection 13. The rear of the pistons 18, 26 are connected to supply pressure and actuator pressure respectively through restricted openings 51, 52. On operation of the switch 50 to rotate the armature 45 anticlockwise the valve 31 is unseated to relieve pressure from behind the piston 18 to connect the actuator to pressure liquid supply, valves 32 and 25 remaining closed. On operation of the switch 50 to rotate the armature clockwise the valve 31 is seated by its spring the valve 32 unseated, to relieve pressure from behind the piston 26. The actuator is then connected to discharge and pressure builds up behind the piston 18 to close the supply valve 19.
Patent GB-625527-A (GB)
Title: Bobbin-winder for sewing machines
IPC: D05B59/00
Filed: 1947-08-07
Abstract: 625,527. Hinges. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 7, 1947, No. 21580. [Class 65(ii)] [Also in Group VII] Pivoting adjustments.-An arm 18 carrying the bobbin-winding spindle 24 of a sewing-machine is pivoted on a shouldered pin 33 mounted in lugs 11 and carrying washers 41 locked to the adjacent parts by nibs 51 and pressed together by a spring washer 43 to produce friction to hold the arm in any position. The friction is increased in the in-use position of the arm by cam portions 52 on the washers 41 coming opposite one another and thus increasing the stress in the spring washer 43.
Patent GB-1455650-A (GB)
Title: Process for production of 2-cyanopyridine compounds
IPC: C07D213/84
Filed: 1974-05-15
Abstract: 1455650 2-Cyanopyridines DOW CHEMICAL CO 15 May 1974 21607/74 Heading C2C 2-Cyanopyridines, e.g. those of the Formula I wherein each of R 3 , R 4 , R 5  and R 6  is a hydrogen atom or a cyano, halo, C 1-4  alkyl, halo C 1-4  alkyl, phenyl C 1-4  alkyl or C 1-4  alkoxy radical, are prepared by reacting cyanogen with 1,3- butadiene or a substituted 1,3-butadiene (e.g. HCR 3 =CR 4 -CR 5 =CHR 6 ) at 450 to 600 C. in a molar ratio of at least 2 to 1.
Patent GB-614736-A (GB)
Title: Arrangement for packaging parcels
IPC: B65B67/08
Filed: 1946-07-23
Abstract: 614,736. Work benches. VIART, J. F: July 23, 1946, No. 21936. Convention date, May 16, 1939. [Class 61 (ii)] [Also in Groups XVII and XXX] A table for stringing parcels &c. comprises a number of independent plates 1-6 separated by gaps to receive the string &c. and supported by posts 7-12 from a centre support 13 which may be rotatably mounted on a base 16. The Specification as open to inspection under Sect. 91 comprises also further applications to railroad trucks for instance, or for trucks arranged in the vicinity of cranes for lifting heavy loads without any preparatory operation. This subject-matter does not appear in the Specification as accepted.
Patent GB-999472-A (GB)
Title: Process for the cracking of tar acids
Inventor: WELLS GEOFFREY LEONARD
IPC: C07C37/50
Filed: 1960-06-23
Abstract: A process for the thermal cracking, i.e. a cracking process carried out in the presence of hydrogen or mixtures containing hydrogen (e.g. water gas or coke oven gas) and in the absence of a catalyst, of a tar acid or a tar acid fraction comprises passing the tar acid or the tar acid fraction in the presence of hydrogen through a coke bed heated to a temperature of 550-800 DEG  C., and preferably 600-700 DEG  C., the ratio of the hydrogen to tar acids being between 1 : 1 and 4 : 1 and preferably 2 : 1.  The process is preferably carried out under a pressure of up to 30 atmospheres and the coke bed consists in particles of coke maintained in a fluidized state by the passage of hydrogen.  In Example 1 a mixture of the tar acids o-cresol and 3,5-xylenol together with hydrogen in the molecular ratio of 3:1 under a pressure of 30 atmospheres was fed to a reactor for 11 seconds to yield 23.7% phenol and 10.3% meta and para cresol.
Patent GB-503895-A (GB)
Title: Improvements in and relating to resistance testing and comparing apparatus
IPC: H04B17/10
Filed: 1938-07-25
Abstract: 503,895. Resistance measurements; sets of resistors. OESTREICHER, W. July 25, 1938, No. 22006. Convention date, April 22. [Class 37] Resistance testing apparatus, particularly for wireless apparatus with the resistors in situ, comprises a number of groups of resistor units having connections for enabling each resistance value to be put into circuit independently of the others, together with switching means for putting the values of each group in circuit singly, or two or more at a time, in series with one another either alone or with one or more values of other groups. Each group comprises four resistors having values in the ratio of 1 : 2: 4: 5, and these can be connected to produce all values from 1 to 9 in hundreds, thousands and hundreds of thousands of ohms. The units are built up as in Fig. 2, windows 12 ... 15 being provided for viewing the resistance values. A voltmeter and ammeter 25, 26 can be built on to the apparatus. Spring clips 16, 17 are provided for testing a detached resistance unit 18, a switch 19 being employed for changing the connections. Fig. 3 shows the circuit connections, 4 ... 7 being the groups of resistances, 33 the change-over switch, and 57 a switch which is opened before all of the groups are in their short-circuited position. The voltmeter and ammeter terminals are shown at 36 ... 39, and the spring clip terminals at 16, 17.
Patent GB-303729-A (GB)
Title: Spark plug
IPC: H01T13/54
Filed: 1928-07-30
Abstract: 303,729. M÷ller, G. A,. July 30, 1928. Sparking-plugs.-Mica washers line the inside of the casing and are retained by a shoulder 8 and a pressed ring 7 or equivalent arrangement. In part the washers may be replaced by a metal sleeve, mica wrappings 12 being then placed immediately within the casing. Helical or longitudinal grooves are formed on the exposed inner surfaces 9 of the mica washers.