baber/WOPTO huggingface dataset:
Patent GB-916614-A (GB)
Title: Improvements in or relating to the production of high molecular weight polymers of unsaturated aldehydes
IPC: D21H17/34
Filed: 1960-12-12
Abstract: A method is described for polymerizing a ,b -unsaturated aldehydes in the presence of a free-radical liberating catalyst and a salt of a metal which exhibits multi-valency.  The aldehyde can be acrolein, methacrolein, a -ethyl acrolein, a -butyl acrolein, a -isobutyl acrolein, a -chloro acrolein, b -phenyl acrolein, a -decyl acrolein, or a -cyclohexyl acrolein.  The freeradical liberating catalyst can be a peroxide hydroperoxide or a perester or potassium persulphate or permanganate.  The metal can be iron, tin, manganese, copper, vanadium, cobalt, nickel, silver, or titanium and the anion can be any type that is soluble in the reaction mixture.  Part of the salt must be in a lower valency state.  The catalyst is present between 1 X 10-6 and 5 X 10-2 mols. per mol. of aldehyde and the metal is present between 0,5 and 1 gram ion of metal to 1 mol. of catalyst.  A further ingredient can be a chelating agent with at least one electron donating group, such as nitrogen, oxygen or sulphur.  The preferred chelating agents form a 5 or 6-membered ring with the metal atom.  It is present at between 1 and 1,5 moles per gm. ion of metal. A list of suitable compounds is given.  An anticoalescent material can also be present (between 0,1 and 80% by weight of the aldehyde). It can be cationic, anionic or non-ionic.  A long list is given.  The unsaturated aldehyde can also be polymerized with up to 35% of one or more of the following monomers; vinyl pyridine, vinyl naphthalene, styrene, a -methyl styrene, allyl alcohol, allyl esters, acrylic and methacrylic acids and esters, vinyl acetate, vinyl propionate, ethylene, propylene, iso-butylene, iso-octene, vinyl chloride, vinylidene chloride, acrylonitrile, methacrylonitrile, and allylamine.  Minor amounts of polyethylenically unsaturated monomers may also be used.  The polymerization is preferably carried out in aqueous medium at a temperature between the freezing point of the system and 50 DEG C. in an inert atmosphere. The resulting polymer has an intrinsic viscosity of at least 0,6 (in its solubilized form) and a theoretical aldehyde function of at least 95%.  The polymers can be solubilized by treating with sulphur dioxide, alkali bisulphite, ammonium bisulphite, a hydrocarbyl ammonium bisulphite or a primary or secondary amine. The sulphur containing polymers may be further reacted with a primary or secondary amine, a water-miscible alcohol or hydrogen sulphide.
Patent GB-1010722-A (GB)
Title: Improved barber's shears
IPC: B26B13/08
Filed: 1964-10-20
Abstract: 1,010,722. Scissors. D. CERCONE. Oct. 20, 1964 [Oct. 21, 1963; Dec. 13, 1963], No. 42702/64. Heading B4B. Scissors for haircutting comprise a blade, the cutting edge of which is co-operable with the serrated edge of the other blade to produce a thinning effect, the arrangement being such that successive co-operating points along the blade edges lie on an irregular or curved line. As shown in Fig. 1, cutting edge of blade 4 has co-operable therewith irregular teeth 8 of blade 6. In a modification, the teeth are arranged in a concave curve. In another modification, Fig. 3, the teeth 12 of blade 10 are arranged in a straight line and co-operate with the concave arcuate portions of blade 16. The ends 14 of the teeth are concave. The blades are biased to an opening angle of 30 degrees by a spring 20. Handle 24 has attached thereto a rod 26 which passes through an aperture 28 in handle 22 and a groove 30 in the rod is engaged by a slidable catch 32 to lock the blades in the closed position. In another modification, the arcuate portions of the blade 16 are convex. In a further modification, the blades are detachable from the handles.
Patent GB-1147049-A (GB)
Title: Improvements in and relating to transformer windings
Inventor: WHITAKER JAMES DOUGLAS
IPC: H01F27/28
Filed: 1966-09-28
Abstract: 1,147,049. Transformers and reactors. C. A. PARSONS & CO. Ltd. 30 June, 1967 [28 Sept., 1966], No. 43255/66. Heading H1T. The windings of transformers, are provided with cooling ducts 2 formed as a result of convolutions la in the conductor. The convolutions may be arranged (as shown) to provide axial cooling ducts, or radial cooling ducts. Also, the conductor may have an undulating surface.
Patent GB-1509976-A (GB)
Title: Logic circuit
IPC: H03K19/0944
Filed: 1975-10-23
Abstract: 1509976 Semi-conductor logic circuit RCA CORPORATION 23 Oct 1975 [27 Feb 1975] 43528/75 Heading H3T A circuit for generating a binary logic function and its logical complement comprising an N-input Nand or And logic gate having N input terminals 134 to 144, and an output terminal 46, N being an integer greater than one; which gate produces an output voltage OV representing a particular binary value 0 whenever all the input signals applied to the inputs represent a first binary value 1 and an output, - V representing; the other binary value, 1, whenever any input signal represents the second binary value, 0, and an inverter having an output terminal 48 a first terminal connected to receive a voltage OV corresponding to the particular binary value 0, a second terminal 64 connected to receive a voltage -V corresponding to the other binary value, 1, N transistors 52 to 62 of one conductivity type having their main conduction paths connected in series between the second terminal 64 and the output terminal 48 of the inverter and each having a control electrode to receive a respective input signal; and an additional transistor 50 of the same conductivity with its main conductive path connected between the first terminal and the output terminal 48 of the inverter and with its control electrode connected to the output terminal 46 of the logic gate. Preferably the logic gate comprises N transistors 34 to 44 of the said conductivity connected in series between the output terminal of the gate 46 and the first terminal, each having a control electrode to receive a respective input signal and a load connected between the output terminal 46 and the second terminal 30. Preferably the load is an IGFET 32 connected as shown and all the other transistors are also IGFETS.
Patent GB-948974-A (GB)
Title: Improvements in machines for performing neck sizing and facing operations on containers moulded from synthetic organic plastics material
Inventor: SCOTT GRAHAM WALTER
IPC: B29C37/02
Filed: 1961-12-06
Abstract: 948,974. Preparing surfaces for printing. E. SHIPTON & CO. (ENGINEERS) Ltd. Dec. 6, 1962 [Dec. 6, 1961], No. 43713/61. Heading B6C. [Also in Division B3] A machine for carrying out operations on containers 11 moulded from synthetic organic plastics material comprises an indexing table 10 for carrying a number of containers 11 and moving them to successive work stations 1-6. The table can be indexed by pneumatic means, and at station 4 a flame treatment is carried out on the containers prior to printing. A gas burner ring 12 is moved up and down over a container by a pneumatic piston 15, and the table indexing means is prevented from rotating during the flame treatment by a limit switch 19 which is only closed when ring 12 is raised above the work.
Patent GB-1311412-A (GB)
Title: Device carrying coiled material
IPC: B65D85/04
Filed: 1971-09-20
Abstract: 1311412 Carrying device for wire coil BEKAERT SA NV 20 Sept 1971 [31 Dec 1970] 43739/71 Heading B8M A device carrying coils of wire, cable or strapping material, e.g. barbed wire, comprises a generally cylindrical ring 11 to which a handle 13 is attached, the ring 11 being provided with radially outward projecting element or elements, the ring being of a height which corresponds to the height of only a few of the piled-up windings of the coil. In a preferred embodiment, the radial element comprises a radial flange 14. The ring 11 is also provided with two axially projecting lips 15 to which the handle 13 is attached. The internal diameter of the ring is substantially equal to the diameter of the coil winding mandrel, and the horizontal length 17 of the handle is substantially equal to the diameter of the coil 12. The ring 11 may also be provided with outwardly projecting ribs at spaced locations round the ring, and the ends of the handle may be accommodated in two such ribs which are shaped to prevent the turning of the handle being impeded by the coil. The ring is preferably made from synthetic material. The handle may be made of wire coated with synthetic material. The coils with the carrying devices may be stacked one upon another with the handle engaging in the bore of the coil above, the planes of the handles of adjacent coils being at right-angles to each other. In use, the ring 11 is placed on a winding mandrel and a few windings of the coil are located on the ring, thereafter the coil is built up in standard fashion. At the completion of winding, the handle is attached and the coil removed from the mandrel.
Patent GB-1160364-A (GB)
Title: Stabilising Polyamides.
Inventor: LAWRANCE DEREK ROBERT
IPC: C08K13/02
Filed: 1966-09-30
Abstract: 1,160,364. Stabilized delustered polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 Sept., 1966, No. 43788/66. Addition to 1,100,559. Heading C3R. The process of Specification 1,100,559 for stabilizing polyamides against heat and light by incorporating 3 to 9 p.p.m. copper and 200 to 500 p.p.m. of a hydrohalide or corresponding quaternary ammonium halide of a defined diamine is applied to polyamides containing 0À2 to 5 wt. per cent of TiO 2  and is modified in that 5 to 100 p.p.m. manganese in the form of a compound thereof is additionally incorporated.
Patent GB-1361264-A (GB)
Title: Vehicles with cabs for example straddle carriers
IPC: B62D49/06
Filed: 1971-09-20
Abstract: 1361264 Vehicle cabs; controlling vehicles BOFORS AB 20 Sept 1971 [13 Oct 1970 7 May 1971] 43826/71 Headings B7B and B7H A vehicle is operable from either of two driver's positions, one at each end of the vehicle, a single driver's seat which is rotatable and movable longitudinally of the vehicle between the stations being provided. In one embodiment, Fig. 3, the seat 4 is rotatably mounted in a cab (Fig. 1, not shown) extending over only a part of the vehicle's length and which is mounted on rollers 6a engaging longitudinal rails 6 on the vehicle. A reversible motor 5 operates a gear 17 which engages a rack 18 on the vehicle parallel to the rails 6 to effect movement of the cab between driving positions. In a further embodiment (Figs. 4-7, not shown) the cab extends over the whole length of the vehicle and is rigidly connected thereto, only the seat being movable. In either case vehicle control gear may be provided at both ends of the cab, or a single control unit rotatable and movable with the seat may be provided. In a further embodiment the driver's seat and the controls are fixed relative to the cab which is rotatable and movable on the vehicle.
Patent GB-1059080-A (GB)
Title: A spark-gap assembly
IPC: H01S3/11
Filed: 1964-10-27
Abstract: 1,059,080. Discharge apparatus; lasers. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 27, 1964 [Oct. 28, 1963 (3); June 4, 1964], No. 43857/64. Headings HlC, H1D and H1X. A spark gap is triggered by a laser beam. The spark gap may have metal plates in the inter-electrode gap, may be open or enclosed, and may have a series load in the form of a gasfilled discharge tube. The beam effects triggering by heating one of the spark gap electrodes, or an additional " counter-electrode," forming a thermionically emissive body, or by ionizing the gas filling of an enclosed gap, or by destroying a dielectric placed between the electrodes. The laser may be placed inside one electrode which is apertured to provide access to the other electrode for the beam, or may be disposed to one side of or in line with the spark gap or a plurality of spark gaps which are triggered simultaneously, the plates, if present, and all but one electrode being apertured in the latter case to allow passage of the beam. A beam may be used to pre-ionize the gas filling of the discharge tube in addition to triggering the spark gap, or may be split into two beams for this purpose. The spark gap and discharge tube may be mounted in a common enclosure and the discharge tube surrounded by a coil to provide an apparatus for studying the behaviour of a magnetically constricted plasma. Fig. 24 shows such an apparatus in which the coil 309 is controlled by an external spark gap 351, 352 which is triggered in synchronism with spark gap 310, 311 by a beam 340 split by a prism 324 from the beam of a laser 320. The second split beam 350 pre-ionizes the discharge tube 316. Modifications of this apparatus are described (Figs. 18 to 23, not shown) incorporating the alternative triggering arrangements described above. The spark gap electrodes may be nested cups, or one spark gap electrode may be integral with one discharge tube electrode.
Patent GB-1132409-A (GB)
Title: 2-phenylamino-2-oxazolines
Inventor: WOLLWEBER HARTMUND
IPC: C07D263/28
Filed: 1967-09-27
Abstract: 1,132,409. N-substituted-2-amino-oxazolines. FARBENFABRIKEN BAYER A.G. 27 Sept., 1967 [27 Sept., 1966], No. 43996/67. Heading C2C. Novel compounds of general formula wherein R is C 1-4  alkyl, C 1-4  alkoxy, C 1-4  acyl, halogen or NO 2  or their tautomers of formula and salts thereof with inorganic or organic acids are prepared (a) by reacting a compound of formula with ethanolamine or (b) by cyclization of a reactive ester A of the alcohol of formula which may optionally be formed in situ by reacting an amine of formula with a #-haloethylisocyanate or by reacting ethanolamine with a compound of formula followed by formation of the reactive ester. 2,4,6 - Trimethylphenylisocyanide dichloride is prepared by chlorination of 2,4,6-trimethylphenylisocyanide prepared by action of phosgene and 2,4,6-trimethyl-N-formylaniline.
Patent GB-1436432-A (GB)
Title: Gas control device
IPC: F23N5/02
Filed: 1973-09-20
Abstract: 1436432 Valves CONCENTRIC CONTROLS Ltd and MAIN GAS APPLIANCES Ltd 19 Dec 1974 [20 Sept 1973] 44112/73 Heading F2V [Also in Division F4] A gas control device comprises a thermostat valve 10 having a valve member 16 mounted on a support 14 and movable through a range of positions relative to a valve seat 22, the position being determined by the combined efforts of a thermo-sensitive device (not shown) and an adjustable setting device (not shown), the thermo-sensitive device including a probe (not shown) and an expansion element 25 which is contracted when the probe is cool to cause valve member 16 to open, but as the temperature of the probe rises the element 25 expands and closes the valve 16, the particular adjustment of the setting device determining the temperature to which the probe must be heated to cause the valve member to reach the closed position, and a flame-sensing device comprising a probe (not shown), and an expansion element 34, wherein when the probe is cool, element 34 is contracted, but when the probe is heated by a gas flame, element 34 expands, element 34 and valve member 16 are arranged so that if the probe of the flame-sensing device cools and element 34 consequently contracts, the contraction overrides the normal operation of the thermostat valve and results in the valve member 16 moving to its closed position, but when the probe of the flame-sensing device is heated by a gas flame and element 34 is expanded the element does not interfere with the normal operation of the thermostat valve. The adjustable setting device comprises a rotary plug valve (not shown), which controls the flow of gas to a chamber 11 and has a cam track co-operating with a slidable rod 12 which engages a beam 14 carrying valve 16. In operation, a gas burner is controlled by turning the plug valve to allow sufficient gas to pass through a by-pass to enable the burner to be lit; valve 16 being closed. A mercury-filled probe is heated and the mercury expands in passage 35 and element 34 so that a rod 37 pivots a lever 39 to compress a spring 43, and a spring 21 opens valve 16 so as to increase the gas flow to the burner. A probe is connected to an oil filled conduit 30 and element 25, the latter expands to pivot beam 14, to thus urge valve 16 in the direction of the closed position in accordance with the particular position of rod 12 which is controlled by the setting of the plug valve. If the flame of the burner goes out, the mercury-filled probe cools, lever 39 rocks and spring 43 closes valve 16 to thus cut off the fuel supply to the burner. The mercury-filled probe may be heated by a pilot, independent of the plug valve, in which case the by-pass is omitted. A different lay-out of rods 37, 12, and their controls is described.
Patent GB-991510-A (GB)
Title: Improvements in or relating to the production of l-glutamic acid
IPC: C12P13/14
Filed: 1963-11-08
Abstract: L-Glutamic acid is prepared by cultivating a L-glutamic acid producing strain of the organism Brevibacterium divariatum under submerged conditions of agitation and aeration in an aqueous nutrient medium containing a carbohydrate source, a phosphate source, a potassium source, a nitrogen source and a growth promoter, said medium being maintained at a pH of between 6 and 8, said cultivation being conducted at a temperature of between 28 DEG  and 33 DEG  C. until essentially maximum growth of the organism is obtained, and then being conducted for the remainder of the cultivation at a temperature of between 36 DEG  and 40 DEG  C.
Patent GB-1461135-A (GB)
Title: Apparatus having an actuator cylinder and piston and control  valve therefor
IPC: B64C27/64
Filed: 1974-10-11
Abstract: 1461135 Fluid-pressure servomotor systems TEXTRON Inc 11 Oct 1974 [16 Nov 1973] 44175/74 Heading G3P Tandem pistons 30, 32 operating a swash-plate control 16 for a helicopter are controlled by spool valves 220, 222 mounted in sleeves 192 which are displaced against springs 201, 212, if the spools jam. If either one of the spools jams in either a neutral or an off-centre position the corresponding sleeve is displaced to provide a by-pass connection between the two sides of the affected piston, while if both spools jam, direct mechanical actuation takes place from a lever 14. Each spool is supplied through a check-valve 72 from an inlet 66 fitted with a filter 68 and is connected to a return line 124 through a valve 96 opened by the pressure in the supply line 70. A pressure relief valve 128 is also provided. If the spool jams in its neutral position, the sleeve movement opens a by-pass through a check-valve 110 when the sleeve is moved to the right and through a check-valve 112 when the sleeve is moved to the left. If the spool becomes stuck in an off-centre position a by-pass for the affected piston is provided through the passages of the spool and sleeve. The pistons cause the valve body to move and restore the spools to their neutral position, thus providing follow-up control. In a second embodiment, the inlet and return passages terminate at the right hand side of the valve body, the supply check-valves (334), Fig. 13 (not shown) are of simpler construction and the pressure relief valves (360) include a loose-ball closure.
Patent GB-1143328-A (GB)
Title: Towing bar, in particular for aircraft
IPC: B64F1/22
Filed: 1967-09-28
Abstract: 1,143,328. Drawbars. BETEILIGUNGSUND PATENTVERWALTUNGS G.m.b.H. 28 Sept., 1967 [29 Sept., 19661, No. 44259/67. Heading B7T. A towing bar, in particular for aircraft, comprises a first tube 1 connected with a rod 9 and a second tube 2 connected to an end plate 3 of a cylinder 4 which contains a foamed plastics spring 6 between discs 7 and 8, the rod 9 in the normal position of the bar passing through a second end plate 5, discs 7 and 8 and spring 6, and being prevented from being withdrawn through the spring by nut 10. Annular spaces 12 and 13 allow for radial expansion of spring 6 when compressed. If the bar is under compression the end 1a of tube 1 passes through end plate 5 causing the spring to be compressed while rod 9 passes into tube 2. In tension of the bar, rod 9 is pulled out from cylinder 4 causing the disc 8 to move towards disc 7, thereby compressing the spring 6. The spring 6 may alternatively be a steel spring, e.g. plate or annular.
Patent GB-1484822-A (GB)
Title: Bulk polymerisation of vinyl chloride
IPC: C08F2/00
Filed: 1975-10-28
Abstract: 1484822 Polyvinyl chloride; anti-scaling agents SHIN-ETSU CHEMICAL CO Ltd 28 Got 1975 [28 Oct 1974] 44286/75 Heading C3P In a polymerization vessel employed for the bulk polymerization of vinyl chloride, either alone or with comonomers, the inner walls and other surfaces which contact the polymerization system are precoated with a compound comprising a phosphorus compound selected from phosphoric esters, polyphosphoric esters and alkali metal salts thereof. A borate and/or a polymerization inhibitor may also be incorporated in the coating, which serves to inhibit fouling of the reactor walls &c. with P.V.C. scale. A wide range of phosphorus esters are exemplified, in homopolymerizations of vinylchloride and copolymerizations of vinylchloridevinylacetate.
Patent GB-1533701-A (GB)
Title: Headphone demonstration unit
IPC: H01R13/66
Filed: 1977-07-05
Abstract: 1533701 Two-part couplings; plug boards J PRINCE 5 July 1977 [26 Oct 1976] 44327/76  Heading H2E [Also in Division G4]  A headphone demonstration unit for enabling a plurality of different types of hi-fi and audio headphones to be displayed and demonstrated simultaneously comprises an elongate body 12, means 14 for mounting the body on a support surface, an input socket (18, Fig. 2, not shown), for connection to a stereo or quadrophonic amplifier, and a circuit connecting the input to a series of outlet sockets 16 spaced along the body 12, the circuit including means for attenuating the amplifier signal to at least one of the sockets.
Patent GB-1371546-A (GB)
Title: Method and apparatus for making non-woven fibrous webs
IPC: D04H1/74
Filed: 1972-09-26
Abstract: 1371546 Lap-forming apparatus KENDALL CO 26 Sept 1972 [8 Nov 1971 27 April 1972] 44488/72 Heading D1N A non-woven web is made by passing an airborne stream of fibres having a length of at least 1 inch into an enclosed duct 22 which is smoothly curved in the direction of flow of the stream at a velocity sufficient to cause fibres to become aligned, provided the airstream is undisturbed, in a transverse direction along the curved wall in a shallow transversely band which is narrower than the average length of the fibre, and collecting the fibres emerging from the duct on a porous moving conveyor. The airborne stream may be disturbed in advance of the curved wall to reduce the ratio of cross to machine direction strength. The conveyor may extend at an angle to the length of the outlet of the duct 22. A plurality of ducts may feed fibres onto a single conveyor.
Patent GB-1375770-A (GB)
IPC: C07J71/00
Filed: 1972-09-27
Abstract: 1375770 Prednisolone derivatives SDC STEROIDI DEVELOPMENT CO ESTABLISHMENT 27 Sept 1972 [7 July 1972] 44616/72 Heading C2U The invention comprises a process for preparing compounds of formula (wherein Y and Z are each hydrogen or a substituent) from compounds of formula (wherein X is hydrogen or acyl) by the successive steps of (i) exhaustive acylation to form the corresponding 11,17,21-triacylate; (ii) elimination of HOAc (e.g. by heating with an anhydrous alkali metal acetate) to form the corresponding #<SP>16</SP>-11,21-diacylate; (iii) oxidation (e.g. with OsO 4 , or with KMnO 4  in a continuous flow reactor with a reaction time of 3-seconds) to form the corresponding 16α,17α,diol-11,21-diacylate; (iv) ketalization with acetone to form the corresponding 16,17-acetonide-11,21-diacylate; and (v) basic hydrolysis to give a compound I. As an optional further step, a compound I may be acid hydrolysed to give the corresponding 11,16,17,21-tetrol. Exemplified compounds I are triamcinolone acetonide and fluocinolone acetonide.