baber/WOPTO huggingface dataset:
Patent GB-907647-A (GB)
Title: New aromatic polyesters
Inventor: JENNINGS BRIAN EDMUND
IPC: C08G63/688
Filed: 1960-02-29
Abstract: New polyesters contain the residues of (1) at least one dihydri phenol of formula <FORM:0907647/IV(a)/1> where X is -O-, -S-, -SO2-, -CO-, a carbon atom in a cycloaliphatic ring, or an alkylene radical which may be substituted by hydrocarbon radicals, halogen atoms or halogenated hydrocarbon radicals, and R1, R2, R3, R4, R11, R12, R13 and R14 are hydrogen atoms, halogen atoms, hydrocarbon radicals, alkoxy radicals or nitro groups, (2) isophthalic acid, with or without terephthalic acid, and (3) an acid containing three or more carboxyl groups and/or a phenol containing three or more phenolic hydroxyl groups; the ratio of the number of terephthalate radicals (if any) to the number of isophthalate radicals being not greater than 90:10, the ratio of the number of radicals derived from acids containing three or more carboxyl groups (if any) to the total number of acid radicals being x%, the ratio of the number of radicals derived from phenols containing three or more hydroxyl groups (if any) to the total number of phenolic radicals being y%, and the sum of x and y being less than 1,5.  Specified compounds of class (3) are hemimellitic, trimellitic, trimesic, prehnitic, mellophanic, pyromellitic and tricarballylic acids; also pyrogallol, phloroglucinol, hydroxyhydroquinone and 4,41,411-trihydroxy triphenylmethane.  The polyesters may be made (a) by reacting aqueous alkaline solutions of the phenols with solutions of acid halides of the carboxylic acids in an organic solvent (e.g. benzene, toluene or a chlorinated aliphatic hydrocarbon), preferably in the presence of a quarternary ammonium compound and a surface-active agent (e.g. sodium lauryl sulphate or octadecylbenzene sulphonate), or (b) by reacting phenyl or methyl esters of the acids with the phenols or their acetates or propionates in the presence of an ester-interchange catalyst. Their molecular weights may be increased by heating them above their melting points in vacuo, by heating them in powder form at a temperature below their sintering temperature, or by reacting them with a diisocyanate or diisothiocyanate.  Preferably traces of inorganic solids are removed from the polyesters by washing and the polyesters are carefully dried by heating them at 110 DEG -120 DEG C. The polyesters are useful in the manufacture of moulded articles, films and coating compositions.
Patent GB-284882-A (GB)
Title: Improvements in devices for transforming terrestrial co-ordinates into ship co-ordinates and conversely
IPC: G01C21/00
Filed: 1927-03-14
Abstract: 284,882. Zeiss, C., [Firm of], and K÷nig, A. March 14, 1927. Drawings to Specification. Sighting-devices. - Comprises apparatus for transforming terrestrial co-ordinates into ship coordinates and conversely in which a connecting piece of two movable systems, having a common origin embodies a straight line through the origin. The apparatus, in one example is the same as that described in Specification 284,871 with reference to the stabilization of telescopes &c. In another example; additional gears are fitted, which automatically reduce the rotations of the connecting piece to correspond only with the variations in the angles through which the systems move.
Patent GB-1022564-A (GB)
Title: Copolymers
Inventor: WILSON WALTER
IPC: C08G2/00
Filed: 1961-03-07
Abstract: Trioxan is polymerized under anhydrous conditions in the presence of an electrophilic catalyst with at least one N-vinyl or C-vinyl substituted derivative of a heterocyclic compound. Specified comonomers are N-vinyl carbazole, 2-vinyl pyridine, and 2-vinyl-1.3-dioxan. A third monomer may also be present, e.g. a cyclic ether, an aliphatic or alicyclic unsaturated hydrocarbon, an allyl ether and ester, and a compound containing one or more isocyanate or nitrile groups.  Specified catalysts are metal and metalloidal fluorides, chlorides and bromides, their complexes with water and with organic compounds in which the donor atom is oxygen or sulphur, non-oxidizing inorganic acids and their complexes with boron trifluoride, complexes of boron trifluoride with weakly basic nitrogen compounds, halogens and interhalogen compounds and oxonium salts. The reaction preferably takes place in an inert liquid medium in a continuous manner at between - 100 DEG  and 100 DEG  C.  The matter claimed in Specifications 998,479, 1,002,761 and 1,009,882 is disclaimed.
Patent GB-597043-A (GB)
Title: Improvements in tensioning devices for transmission chains and the like
IPC: F16H7/08
Filed: 1945-03-21
Abstract: 597,043. Chain and belt tensioning devices. WELLER, J. March 21, 1945, No. 7093. [Class 80(i)] A chain or belt drive comprises a tensioner of the kind described in Specification 5 2 6,4 1 9 characterised by a flexible slipper A which is pressed against the inside of a free length of the chain C, and which passes round one or more of the chain sprockets B. The slipper may be laminated as at H, Fig. 3, or have a hydraulic dashpot, as described in Specification 484,128, to check oscillation in the chain, and may be slotted where it passes round a sprocket to allow the teeth to project or attached to a collar J, Fig. 3, mounted on the boss of the sprocket. The slipper may be rigidly supported in the sheath F, Fig. 1, mounted on the anchor pins D on the driving side of the chain, or supported by a single anchor pin D, Fig. 3. The slipper may be in the form of an endless band A, Fig. 5, or formed with free ends L.
Patent GB-570453-A (GB)
Title: Improvements in or relating to electrical current-transmission apparatus of the moving contact type
IPC: H01R41/00
Filed: 1944-04-17
Abstract: 570,453. Electric collectors. HARVEY, H. H. April 17, 1944, No. 7099. [Class 38 (i)] A distribution system comprises bare conductors 14 located in slots 15 in insulating strips 16 mounted on a support which forms a track for a movable current collector having spring-pressed contact pieces for making sliding contact with the conductors. As shown in Fig. 2, the support is a channel member 10 carried by brackets 18 and its flangcs 12 form rails for the runners 34 of the current collector. The contact pieces 22 of the latter maintain the collector on its track by their spring pressure and are carried by an insulating block 24 provided with current outlet sockets 30 to which the contact pieces are connected, the sockets being adapted to receive plug couplings 32. Fig. 5 shows a system in which an inverted channel-shaped support 40 has its free edges 45 inwardly turned to provide rails for the runners 50 of a current collector 48 located within the support. In a further construction, Fig. 6, the support 70, which may be of rectangular section and provided with conductors on each longitudinal face, is carried by wall brackets 68 and a current collector 76, running on rails 72, 74 surrounds the support, except for a, gap 84 which is necessitated by the brackets 68. The support may be tubular and the runners of the current collector radially arranged for engaging the outer surface of the tube. The outlet sockets may be carried by a frame suspended from the collector.
Patent GB-331566-A (GB)
Title: Improvements in machines for setting, sharpening and shaping saw teeth
IPC: B23D63/20
Filed: 1929-03-05
Abstract: 331,566. Andrea, N. d'. March 5, 1929. Saws, sharpening.-In a machine for shaping, sharpening, and setting saw teeth, these operations are carried out simultaneously. The saw blade is carried in a spring clamp 12 which releases it, when a feeding mechanism (not shown) functions between the above operations and moves the blade through a distance equal to two teeth. Adjustably secured to reciprocating slides are files 17 for sharpening the teeth. The slides are reciprocated by extensions 13 attached to the lever 5.
Patent GB-673836-A (GB)
Title: Composition resistant to attack by highly-reactive fluorine-containing materials, and processes and apparatus characterized by the use of such composition as a lubricantor sealing liquid
IPC: C10M103/06
Filed: 1949-03-15
Abstract: A liquid lubricating or sealing composition for the moving parts of apparatus for handling highly reactive fluorine-containing materials, particularly apparatus for compressing or moving fluorine, comprises a mixture of HF and a metal fluoride or ammonium fluoride in the proportion of 1 mol. fluoride to 1-7 mols HF.  Metal fluorides mentioned are fluorides of potassium, sodium or caisium.  The composition may contain more than one metal fluoride and may contain additional ingredients, particularly finely divided solid fillers or additional lubricants such as cryolite, fluorspar, graphite or other material resistant to fluorine and hot acid fluorides.  In an example, a composition consisting of 1 mol. of KF and about 2 mols. of HF, maintained at a temperature of 100 DEG C, is employed as lubricant between piston and cylinder of a compressor for compressing fluorine, or as sealing liquid in the sealing gland of a rotating shaft coming into contact with fluorine.
Patent GB-144405-A (GB)
Title: Improvements in or relating to pen nib attachments or the like
IPC: B43K1/01
Filed: 1919-03-21
Abstract: 144,405. Brown, J., and Gow, D. March 21, 1919. Reservoir nibs. - A reservoir attachment for pen nibs consists of a strip of metal or other material providing a plate to lie under the nib which is substantially flat and is bent upwards or inclined at both ends towards the arch of the nib. The plate may be attached to the nib at the rear end bv soldering, as shown at c, Fig. 3, or by means of bent-over wings d, Fig. 6, or n, Fig. 7.
Patent GB-453161-A (GB)
Title: Improvements in or relating to calendars
IPC: G09D3/10
Filed: 1935-03-07
Abstract: 453,161. Calendars. CALENDOX, Ltd., and HANROTT, H. C., 91; Petty France, Westminster. March 7,1935, No. 7200. [Class 106 (iv)] An endless transparent sheet passes over rollers 7, 8 and is marked with cancellation lines 11 which cooperate with month sheets 6. The lower roller has an operating knob 9. A monthname drum 4 may be provided. The series of month sheets may be united together and then folded in a concertina-like manner.
Patent GB-874472-A (GB)
Title: Improvements in and relating to engine driven electric generators
Inventor: GRIFFITHS LEONARD
IPC: H02K7/11
Filed: 1957-03-05
Abstract: 874,472. Eddy-current couplings; transmitting mechanical power. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 5, 1958 [March 5, 1957], No. 7288/57. Classes 35 and 38 (4). A generator G is driven at substantially constant speed from the engine of a motor vehicle by means of an eddy-current coupling whose excitation is centrifugally controlled. In one form, Fig. 1, in which step-up gearing 4, 5, 6, 7 is interposed between the coupling and the driving shaft 8, the driven member 2 of the axial air-gap is carried on the generator shaft 1, and comprises a series of axial poles 2b shrouded by copper eddy-current sleeves 2c. The driving member 3 has corresponding axial poles 3b carrying exciting windings 3c. The excitation is controlled by a series of centrifugal switches 22 set individually to open in succession each at a predetermined speed so that the excitation current is reduced in steps by the insertion of resistor sections as the driving speed rises. The excitation current is fed through a brush 13 and slip-ring 14 and connectors 15, 16, 17 and 18 to one end of a tapped resistor 20 mounted on a ceramic spool 21. The other end of the resistor is connected to the series-connected field windings 3c, which are earthed at their remote end through rotor 3 and earthing brushes 23, 24. Each switch is mounted on an insulated conductor 22 connected at its other end to a resistor tapping point, and comprises a spring-loaded contact spindle 22a engaging a copper earthing ring 50. Cooling air is drawn by fan 3d through filter 106, hole 9b and axial holes (not shown) in the coupling rotors 2, 3, and is expelled through holes (not shown) in the unitary casing 9. A modified form of coupling having a radial airgap is shown in Fig. 5, in which the field member 26 comprises an annular coil 30 earthed at one end and embraced by toothed poles 31, 32, and the eddy current member comprises a drum 42. Cooling air is circulated through holes 46, 48, 47 by means of fan blades 49. The winding 30 may be subdivided and the sections energized selectively through the centrifugal switches, or resistance control may be used as above. Specification 826,048 is referred to.
Patent GB-497212-A (GB)
Title: An improved method for manufacture of a reducing gaseous mixture
IPC: C10J3/00
Filed: 1937-03-12
Abstract: 497,212. Continuous production of water gas. JOHNSTON, G. G. March 12, 1937, No. 7289. Convention date, March 12, 1936. [Class 55 (i)] A reducing gaseous atmosphere of constant predetermined temperature is generated continuously for some hours by injecting superheated dried steam under pressure into a heated fuel bed in the complete absence of air and without external heating, the fuel bed being initially raised to a cherry-red by admission of air thereto which is then cut off and the fuel bed allowed to attain the predetermined temperature, which may be a minimum of 400‹ C. The temperature of the reducing atmosphere may be raised by the temporary admission of more or less air with the superheated steam. The generator comprises a grateless structure provided with closable openings 16, 17 for the fuel supply and ash withdrawal respectively, and having a sinuously formed superheater 24, preferably in the crown thereof, supplying superheated steam to nozzles 30 accommodated in lined openings 31, 35 in the sides of the generator, these openings being at a quarter of the fuel bed depth. Air is admitted through these openings during the preliminary stage of the process and these openings together with the doors of the apertures 16 and 17 are all then sealed with fireclay before the superheated steam is admitted to the fuel bed. The back of the generator is built directly on to the reducing chamber. The gaseous atmosphere generated may be used for the distillation or carbonization of coconut or peanut shell, hops, bagasse, coals, lignites, shales, slack or duff coal ; for the reducing treatment of arsenical and other ores ; annealing metals ; rejuvenation of spent earths used for refining tallows, gelatine, sugar, &c. ; and for drying bricks. Specification 456,671 is referred to.
Patent GB-305849-A (GB)
Title: Improvements relating to electric heating elements of the immersion type
IPC: H05B3/06
Filed: 1928-03-09
Abstract: 305,849. Nobbs, W. W. March 9, 1928. Heating by electricity.-An immersion heater comprises a U- shaped metallic casng consisting of parallel portions 8 containing resistances 6, 7 and inset portions 15, 16 entering the plug 13 and containing the leads to the resistances. A second U-shaped heating element may be arranged coaxially with and outside the first one. Specifications 12318/15, [Class 37, Electricity, Measuring &c.], and 191,890 are referred to.
Patent GB-840667-A (GB)
Title: Method of and means for attaching a film or sheet of a plastics material to wires or rods
IPC: A01G13/02
Filed: 1957-03-06
Abstract: 840,667. Cloches, window blinds. TUCKER, W. D. March 7, 1958 [March 6, 1957], No. 7402/57. Classes 20(1) and 20(3) [Also in Group XXV] A horticultural cloche comprises two or more supporting hoops 11 and a cover strip 10 of a flexible plastics material, each hoop comprising a resilient tube 11 which is slit longitudinally as at 12 so that a rod or wire 13 around which is wrapped the cover can be inserted into the tube. The rods are made longer than the tube to project into the soil and the cover is gathered into a tuft 14 at its ends and secured to the ground by a peg 15. In order to protect a glasshouse a curtain of a plastics material may be supported as described above from a number of straight tubes containing rods which project from each end of the tubes and have eyes at both ends to engage and move along rails.
Patent GB-443315-A (GB)
Title: Improvements in or relating to bottle washing machinery
IPC: B08B9/42
Filed: 1935-03-09
Abstract: 443,315. Bottle-washing machines. LADEWIG, A. E., 619, Buena Vista Avenue, and SOELCH, G. F., 155, South Charles Street, both in Waukesha, Wisconsin, U.S.A. March 9, 1935, No. 7416. [Class 138 (i)] A bottle - washing machine comprises a conveyer furnished with carrier pockets and fed in such a manner that each bottle passes twice round a circuit at one part of which the bottles are removed to a separate cleansing device and returned ; the bottles are fed to the conveyer and delivered therefrom at adjacent points. Tne conveyer is enclosed in a casing 8, the lower part of which forms a soaking bath. The conveyer is fed step by step, each step being equal to twice the distance between the rows of bottles and its path includes a U-shaped dip at which point alternate rows are ejected on to a tipping device 78 operated by rack-and-pinion which turns the bottles end for end and deposits them onto rotating rollers 79 along which they are moved by reciprocating pushers 80 past rotary brushes 81 and replaced in the conveyer at a different point. The interiors of the bottles are cleansed by jet mechanisms 60.
Patent GB-266916-A (GB)
Title: Improvements in or relating to means for feeding ink to printing machines
IPC: B41F31/02
Filed: 1926-03-17
Abstract: 266,916. Victory - Kidder Printing Machine Co., Ltd., and Wilson, H. W. V. March 17, 1926. Inking-apparatus. - Inking-mechanism for printing-machines consists of a hollow feed pipe or channel carrying a number of duct-members arranged side by side and each in communication with the interior of the feed pipe, the ductmembers being provided with nozzles located in proximity to a distributing-cylinder and being adjustable relatively thereto. The ink feed-pipe consists of a rotatable hollow shaft 12 one end of which is closed and the other open and adapted to be rotatably connected to the ink supply, the ink being fed by gravity or a pressure device. The shaft 12 is slotted at intervals, and the slots 14 communicate with channels 16 formed in duct-members 15, a number of which are arranged side by side on the shaft 12. The number of duct-members may correspond to the number of columns in the sheet to be printed. The channels 16 are connected to nozzles 17 formed between the ends of the duct-members and plates 18 secured thereto. The ink passes from the nozzles in a series of ribbons to a cylinder 20 whence it passes to the distributing-cylinder 33 which runs at the same speed as the printing- cylinder but faster than the cylinder 20. The cylinder 20, which may be dispensed with, is preferably adapted to have its speed controlled, and is also adjustably mounted. To vary the amount of ink fed to the cylinder, the ductmembers 15 are simultaneously or independently adjustable. Secured to the shaft 12 is a wormwheel sector 22 engaged by a worm 23 on a hand-operated shaft 24 mounted in the framework of the machine, so that rotation of the shaft 24 results in the adjustment of all the duct-members towards or from the cylinder. An arm is secured to the end of the shaft 12 opposite to the worm-wheel sector to which it is connected by a bar 28. Screws 30 engage with the bar 28 or with non-rotatable bushes 29 secured thereto, and with bushes 32 secured in arms 31 on the ductmembers 15, so that movement of any screw 30 results in the movement of the corresponding duct-member.
Patent GB-526073-A (GB)
Title: Improvements in and relating to devices for boring holes of varying diameter
IPC: B23B29/034
Filed: 1939-03-07
Abstract: 526,073. Boring; boring-heads. MAYER & SCHMIDT SCHLEIF-MASCHINEN-U. SCHMIRGEL-WERKE AKT.-GES. March 7, 1939, No. 7466. Convention date, March 7, 1938. [Class 83 (iii)] In a boring-head for boring holes of varying diameter a tool carried by a radial slide in the head is coupled to a movable rod extending axially through the spindle and operated by a rotatable member on the spindle, said member being rotated by the co-operation of a template and roller, one of which is mounted on a stationary part of the machine and the other attached to the rotary member. The cutter is mounted in a carrier 17 radially adjustable by a screw 18 in a transverse slide 10 which is provided with rack teeth 19 and is moved radially in the head 8 by means of a pinion 21 in the head rotatable through rack teeth on an axially slidable rod 22. This rod is normally pressed upwards by a spring 27 and is secured axially by a transverse pin 28 to a sleeve 31 splined at 47 within a non- rotatable sliding sleeve 2. Axial motion of the rod 22 is limited by a slot 29 in a hollow shaft 5 attached to a rotatable shaft 3 which drives the head 8 through a sleeve 6 and shank 7. The sleeve 31 engages through a screw-thread 32 with a rotatable sleeve 30 carrying radial pins 35 passing through horizontal slots 36 in the sleeve 2 and attached to a rotatable outer sleeve 37 carried by needle and ball bearings 38, 39 on the sleeve 2. A roller 45 on a fixed part of the machine engages an interchangeable cam-bar 42 attached to the sleeve 37 so that the latter will be rotated as the sleeve 2 is fed axially by a slide 1 on the machine, to move the rod 22 axially and thus adjust the cutter radially to produce a bore of varying diameter along its length. The sleeve 6 is rotatable in bearings 4 in the sleeve 2 and the pin 28 engages the sleeve 31 through bearing rings 49 secured by a screwed sleeve 40. Rotation of the sleeve 37 is restrained by a spring 51, and the positions of the roller 45 and cambar 42 may be reversed, the sleeve 37 then being unnecessary.
Patent GB-556788-A (GB)
Title: Improvements in and relating to otterboards
IPC: A01K73/045
Filed: 1942-06-02
Abstract: 556,788. Otterboards. GROEN, D. J. June 2, 1942, No. 7468. [Class 48] An otterboard 1 which is higher than it is long, and is convexly curved on the side opposite to the towing cable side has on the convex side a projecting arm 3, which may be fixed or hinged, or may consist of a fixed arm to which an extension is hinged. The extension may be buoyant to cause it to assume the horizontal position when immersed. Specification 546,842 is referred to.
Patent GB-739474-A (GB)
Title: Improvements in or relating to gas turbine engines
IPC: F01D25/16
Filed: 1954-03-15
Abstract: 739,474. Lubricating; mounting bearings. BLACKBURN & GENERAL AIRCRAFT, Ltd., and BELL, F. R. March 15, 1954, No. 7494/54. Classes 12 (1) and 12 (3). In a bearing mounting for a rotating part which is held concentric with respect to a fixed part by means of three limbs extending tangentially to a circle about the rotational axis, the three links, or at least two of them, are hollow and lubricant is circulated through at least one link to flow around the bearing and out through another link. As shown, the shaft I of the turbine wheel 2 of a gas turbine engine is supported by a bearing 3 in a part 4 carried by three links 5, 6, 7 which extend tangentially with respect to the rotational axis and are pivotally connected to the bearing- carrying part 4 and to a fixed part 8. Each link is hollow and lubricant flows in through a bearing member 6<SP>1</SP>, through an aperture 6<SP>2</SP> into the interior of the link 6, through an aperture 6<SP>4</SP> into a pivot member 6<SP>3</SP> and through oil ways 9, 10, 11 to the bearing 3, passing out through oil ways 12, 13, bearing member 7<SP>3</SP>, link 7 and bearing member 7<SP>1</SP>. In an alternative arrangement lubricant enters through both links 5, 6 and passes out through link 7.