baber/WOPTO huggingface dataset:
Patent GB-786118-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: C07D303/40
Filed: 1955-09-14
Abstract: Chlorine-containing synthetic resins are stabilized and plasticized by incorporating a compound of the formula: <FORM:0786118/IV (a)/1> where R and R1 are selected from aliphatic hydrocarbon radicals containing up to 12 carbon atoms.  Specified compounds are the epoxidized diethyl, dibutyl, diamyl, dihexyl, didecyl, di(2-ethylhexyl) and didodecyl esters of 3,6-endomethylene-D 4-tetrahydrophthalic acid.  Other plasticizers such as dioctyl phthalate may also be present. Resins mentioned are polyvinyl chloride, and copolymers of vinyl chloride and vinyl acetate, vinyl chloride and vinyl ethers, and vinyl chloride and vinylidene chloride.  The stabilized and plasticized resin compositions may be in the form of plastisols, organosols, hydrosols or emulsions.ALSO:Esters of the formula <FORM:0786118/IV (a)/1> where R and R1 are selected from aliphatic hydrocarbon radicals containing up to 12 carbon atoms are made by esterifying 3,6-endomethylene- D 4-tetrahydrophthalic anhydride with the chosen alcohol or alcohols, and epoxidizing a solution of the ester with a peracid such as peracetic, perbenzoic, or perphthalic acid.  The esterification is preferably effected in solution, e.g. in toluene, in the presence of an acid catalyst such as p-toluene sulphonic acid.  In examples, the preparation of the dibutyl, di-(n-amyl), di-(2-ethylhexyl), didecyl, dilauryl, and dihexyl esters of 3,6-endomethylene-D 4-tetrahydrophthalic acid are described, and also the introduction of the epoxide grouping into the diethyl, dibutyl, diamyl, dihexyl, didecyl, di-(2-ethylhexyl), and didodecyl esters.  The esters are used as plasticizers and stabilizers for chlorine-containing vinyl polymers.
Patent GB-1103767-A (GB)
Title: Improvements in or relating to vapourisation of metals and metalloids
Inventor: HILLIARD ALFRED
IPC: C23C14/26
Filed: 1964-04-30
Abstract: <PICT:1103767/C6-C7/1> An electric heater 10 for vaporizing metals and metalloids comprises two parts of high m.p. metal deformed to form a recess 11 to receive a plug.  Al, Cr. Ni or Si are vaporized above the plug.  The heater may be of W or Mo, the walls of the recess may be relatively thin or slotted to reduce cross-sectional area.  The shape and materials of the plug are described in Specification 1,103,766.
Patent GB-1535286-A (GB)
Title: Cordless vehicle tyres
IPC: C08G18/10
Filed: 1976-06-24
Abstract: 1535286 Cordless vehicle tyres E I DU PONT DE NEMOURS & CO 24 June 1976 [25 June 1975] 26377/76 Heading B7C Cordless vehicle tyres comprise a polyurethane elastomer sidewall adhered to a tread comprising an ethylene/propylene/non-conjugated diene elastomer, the polyurethane elastomer being the product of reacting an organic diisocyanate with a poly-(alkylene oxide)glycol and curing the isocyanate terminated prepolymer obtained by reaction with 4,41-methylene dianiline introduced into the prepolymer in the form of a complex with a salt selected from the chloride, bromide, iodide or nitrite of sodium or lithium or sodium cyanide, and liberated from the complex by heating the mixture of prepolymer and complex. The tyres may be produced by curing the mixture of the prepolymer and complex by heating in a mould to at least 100‹ C. and adhering the resulting carcass-sidewall to the tread. Preferably the the carcass-sidewall is formed in contact with the tread and is thereby simultaneously adhered thereto. The tread elastomer may be treated with an adhesive or other agent which promotes adhesion between tread and sidewall. Suitable tread elastomers are ethylene/propylene/1,4- hexadiene terpolymers. The tyres are substantially uniform throughout and long wearing.
Patent GB-673998-A (GB)
Title: Improvements in and relating to fuelling and servicing systems for airplanes
IPC: B64F1/28
Filed: 1949-10-14
Abstract: 673,998. Fuelling systems for aircraft.WATTS, A. E., and PARKER, J. R. Oct. 14, 1949, No. 26395/49. Class 116 In fuelling and servicing systems for aircraft of the type having submerged fuel storage tanks and piping leading to a number of fuelling and servicing units, each fuelling and servicing unit consists of a submerged pit casing, a cell unit containing fuelling and servicing equipment supported in said casing for vertical movement from an entirely submerged position to an elevated position above the ground, means located within the pit casing including a motor and a control therefor for raising and lowering the cell unit, and a plate closing the pit casing when the cell is submerged and having a handhole for access to said raising and lowering control. Fuel is fed from submerged tanks (not shown) through a pipe 28, Fig. 1, a valve 24, and a flexible hose to a hose reel 9, contained within the cell unit 1 and having a motor 11 for rewinding. A nozzle 12 on the end of the hose on the reel 9 is placed in a control box 34. On lifting the nozzle the valve 24 is opened electrically. The cell unit 1 also houses a fuel meter 8 in a window of the cell unit, carbon dioxide cylinders 6, and a motor 20, Fig. 3, which supplies fluid from a reservoir 19 to a telescopic ram 2 for raising the cell unit. When lowered, Figs. 1 and 3, the cell unit is within the pit casing 3, the floor of which is drained by a pump 27 controlled by a valve 23. The bottom of the cell unit has downwardly extending struts 45 carrying a plate 46 having a water seal friction ring engaging the pit wall. The top 41 of the cell 1 has pillars 13 secured to it and projecting through holes 13x in a pit cover plate 15. Hand rails 43x, Figs. 4 and 6, are joined by discs 43 to the pillars 13 and plate 15 is grooved at 44 and 15x to receive the discs 43 and rails 43x respectively when lowered to provide a flush uninterrupted surface. To raise the cell the operator opens a hand hole 42, Fig. 3, to reach a deadman's button 38 controlling motor 20 for raising the cell unit. When the handrails have risen, rubber buffers 22 on the cell unit top 41 abut cover 15 which then rises with the cell unit. In the raised position, Fig. 15, a platform 17, Figs. 4, 10, and 15, can be projected from under the top 41 out towards an aeroplane wing, the tip having a rubber buffer to avoid damage to the wing. Platform 17 is supported by vertical and horizontal rollers 49 and 49x from a plate 50 in the cell and is moved by a rack 51 and pinion 52 driven from a motor 53 controlled from the control box 34. A safety switch which is only closed when platform 17 is retracted, prevents operation of the motor 20 to move the unit vertically when platform 17 is extended. Cell 1 can be rotated with respect to the head of ram 2, on which it is supported by balls 62, by means of a motor 63 fixed to the ram head and also controlled from box 34, which drives a pinion 65 engaging an internal ring gear 61 on the cell unit. Specification 674,118 is referred to.
Patent GB-654321-A (GB)
Title: Improvements in or relating to ladders
Inventor: LAWSON-KING JOHN
IPC: E06C1/12
Filed: 1948-10-11
Abstract: 654,321. Ladders. GRAVITY LADDERS, Ltd. Oct. 11, 1948, No. 26412. [Class 20(ii)] A light metal extending ladder has tubular stiles 1 extruded, rolled or drawn to provide longitudinal ribs 2 which slidably engage brass angle plates 5 riveted at intervals along the stiles so that the rear edges of the stiles of each sliding section are held in engagement with the rungs of the adjacent section.
Patent GB-503089-A (GB)
Title: Improvements in or relating to foldable photographic cameras
IPC: C07C45/36
Filed: 1937-09-30
Abstract: 503,089. Photographic cameras. KODAK, Ltd.. Sept. 30, 1937, No. 26476. Convention date, Oct. 1, 1936. [Class 98 (i)] A foldable photographic camera having a shutter of the setting type supported by the camera bed, comprises a shutter actuating member, movably mounted on the camera body, connected to the setting and release members on the shutter in such a way that an initial movement of the member sets the shutter, and continued movement releases it. In the form shown, levers 37 and 13 pivoted to the camera bed at 40 and 16 have vertical extensions 43 and 19 which engage respectively the shutter release member 42 and an extension 21 on a ring 20 surrounding the lens and also provided with a yoke 22 embracing the setting lever 23. The lever 13 is normally held against the stop 25 'by the spring 24. The shutter-actuating member is a transverse rod 6 with a button 44. It carries a finger 8, which, during an initial transverse movement, engages, at its oblique end 11, the lever 13, thus setting the shutter. After a certain movement the end of the lever 13 slips past the oblique end 11 andis returned to its initial position by the spring 24. Simultaneously a transverse pin 34 engages the slot 33 in a member 32 surrounding the rod 6 and engaging at its other end the transversely slidable member 29 which in turn engages, in the slot 39, a pin attached to the lever 37. A continued movement of the rod 6 therefore releases the shutter. When the button 44 is released the springs 26 and 36 return the parts to their original positions, the oblique end of the finger 8 being bevelled on its under surface to permit it to slide over the end of the lever 13.
Patent GB-1520590-A (GB)
Title: Electrophotographic reproduction element
IPC: G03G5/06
Filed: 1976-06-25
Abstract: 1520590 Electro-photographic members OCE-VAN DER GRIMTEN NV 25 June 1976 [4 July 1975] 26500/76 Heading G2C [Also in Division C4] An electro-photographic member comprises a conductive support and layer containing a binder and a photo-conductive bisazo pigment of formula wherein M is 0 or 1, n is 0-4, X is Ch or Br, R is Cl, Br, OMe or OEt, R' is H, C 1-8  alkyl or alkenyl group, analkyl group or a carbocyclic or heterocyclic aromatic group, R" is H, C 1-8  alkyl or alkenyl group or C 3-8  cycloalkyl group; all groups being unsubstituted or substituted or R' and R" together completing a saturated or unsaturated 5- or 6- membered ring which may be substituted. The binder may be a styrene/acrylate copolymer optionally mixed with an oxadiazole photoconductor but is preferably photo-conductive, e.g. polyvinyl carbazole (PVK), polyvinyl pyrene (PVPy) or brominated or nitrated PVPy, optionally mixed with an electric acceptor such as trinitrofluorenone (T.N.F.). Alternatively there may be two photo-conductive layers; one layer containing the azo pigment and P.V.K. optionally with T.N.F, and the other layer containing P.V.K. and T.N.F. and acting as a charge transport layer and these layers being coated in either order on the support. Alternatively, 2 or 3 layers of azo pigment and PVK and TNF may be coated on the support.
Patent GB-208811-A (GB)
Title: Improvements in safety appliances for mine cages, hoists and the like
IPC: B66B5/24
Filed: 1922-10-02
Abstract: 208,811. Ross, M. Oct. 2, 1922. Catch gear of mine-cage type.-Four levers D having cam-shaped ends D<1> are pivoted in brackets a on the top of the cage and are pivotally connected at their upper ends to an inverted cupshaped member B suspended from the hoisting rope C. A spring J is placed between an enlargement g on a rod G mounted in the top of the cage and a block H screwed into the member B. This spring forces down the member B when the rope C breaks and the consequent rotation of the cams D<1> causes the guide ropes E to be gripped between them and the closed outer ends of the brackets a. A pair of chains connects the block to the top of the cage.
Patent GB-284381-A (GB)
Title: Improvements in or relating to locking means for hoists and lifts and the gates or doors thereof
IPC: B66B13/18
Filed: 1926-10-23
Abstract: 284,381. Pool, Lorrimer, & Tabberer, Ltd., O'Brien, S., and Breach, W. Oct. 23, 1926. Keyholes, obstructing; locks, pin-key.-Locks for lift well gates and starting ropes &c. are operable by one key which can only be removed from a lock when it is locked the key having a ward which when the lock is inoperative engages a fixed part of the lock which thereby prevents withdrawal. As adapted to a hoist operated by an attendant travelling with the cage, the starting rope lock comprises a case 1 fitted with a rope clamp comprising a fixed jaw 2 and a movable jaw 3 between which the starting rope 4 passes. The movable jaw is operated by a roller 7 on an eccentric 6 which is mounted on a spindle 8 fitted with a transverse pin 10. The key 11, Fig. 5, has a socket 24 adapted to engage the spindle 8 and has notches 26 adapted to engage the pin 10 and a ward 25 which can pass through the key-hole slot in the casing to unlock the clamp and then engages the wall of the casing so as to prevent withdrawal of the key. The well door lock comprises a slidable bolt 14, Fig. 3, pivoted to a lever 15 fixed on a spindle 17 in the lock casing 18, the spindle having a transverse pin 21 and the casing a key-hole slot as before. When applied to a hoist operated at the various floors, the starting rope and well locks are adapted to be operated from the outside and an auxiliary lock controlling the main well lock is provided and is operated by an auxiliary key carried on the cage. The auxiliary lock comprises a disc 27, Fig. 6, having a radial notch 28 mounted on a spindle 29 in a casing 30. The disc has a concentric groove 32 carrying a coiler spring 33 connected to the bearing plate 31 at one end and to the disc at the other end. The spindle 29 has a transverse pin 36 for engagement by an auxiliary key 37, attached as by a chain to the cage. The auxiliary lock is interlocked with the main lock by an extension 40 of the well bolt 14 adapted to engage the notch 28. When the main lock is secured the extension 40 is withdrawn from the notch 28 and the disc 27 is rotated bv its spring so that its periphery prevents upward movement of the bolt. To unlock the well door, the auxiliary key is taken from the cage and the auxiliary lock freed by rotating the disc so that the notch is opposite the bolt and the well door can then be unlocked. Reference has been directed by the Comptroller to Specifications 23041/01 and 10000/08.
Patent GB-151275-A (GB)
Title: Improvements relating to aeroplanes
IPC: B64C39/00
Filed: 1920-09-16
Abstract: 151,275. Rumpler, E. Sept. 16, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Planes, arrangement and disposition of.-The supporting surface of an aeroplane comprises three or more plane elements, the number of superposed planes constituting each element, as regarded from front to rear of the machine, being successively 1, 2, 3 ... The span of the superposed planes in each element increases from the lowest upwards, and the span of the planes also increases from the front to the rear of the machine.
Patent GB-993682-A (GB)
Title: Salts of acetylsalicylic acid, their production and pharmaceutical preparations containing them
IPC: C07C69/86
Filed: 1963-07-04
Abstract: The invention comprises the complex of potassium acetylsalicylate with an equimolar proportion of acetylsalicylic acid and its preparation by reacting the acid with a potassium salt of a monobasic carboxylic acid having a pK value of at least 4.0 in a liquid reaction medium which is a solvent for both reactants. The reactants may be mixed together in the form of mutually miscible solutions, or dispersions may be used provided the mixed liquid reaction medium is a solvent for both reactants. The preferred salt for the reaction is potassium acetate. Examples are given.  The complex of the invention may be made up into an orally ingestible analgesic preparation with a suitable carrier. Tablets, capsules and suppositories are referred to.
Patent GB-1000726-A (GB)
Title: Improvements in or relating to magnetic transducers
IPC: G11B5/265
Filed: 1962-07-11
Abstract: 1,000,726. Magnetic recording &c. heads. BURROUGHS CORPORATION. July 11, 1962 [Aug. 21, 1961] No. 26707/62. Heading G5R.  A write-read head for a single tape track has a central shield 12 mounted coextensively with the inner core-members 23 and gap-shims 22, which extend across both upper and lower gaps of each head unit the magnetic circuits being completed by U-form loops 13, 14 located generally at 45 degrees either side of the direction of the shield member 12 so that the respective read and write windings are at 90 degrees one to another to reduce cross-talk. Preferably, the write coil 15 is a single winding while the read coils 16, 17 are arranged to be mutually assisting relative to fields at the read gap, but opposing relative to stray fields in general. The inter-gap distance d is reducible to 0.05 inch by the form of construction.
Patent GB-1305669-A (GB)
IPC: B65D/
Filed: 1971-04-19
Abstract: 1305669 Easy-open can ends ALUMINUM CO OF AMERICA 19 April 1971 [4 May 1970] 26775/71 Heading B8D An easy-open aluminium can end 10 comprises a V-shaped score 18 to define an openable flap 20 having its apex adjacent the can end periphery, a tab 34 having a handle portion 38 at one end and a nose portion 36 at the other end which overlies and is secured to the flap by a rivet 28, and aligned cuts 48 and scoreline 50 extending transversely of the tab intermediate its length forming a one-way hinge, which permits the tab handle portion to be raised to cause rupture and inward deflection of the flap by the depressed tab nose portion, Figs. 5-7 (not shown), and subsequent hinging back of the tab handle portion relative to the tab nose portion and deflected flap back on to the can end to avoid obstruction of the formed opening. The tab remains attached to the opened can end. The scoreline 50 extends across the upper surface of a depressed tab area 46 in alignment with the cuts 48 formed in the reinforced flanking tab side portions. The side portions are reinforced by inturned flanges 44, Fig. 2 (not shown), through which the cuts 48 do not extend. The said flanges merge into a downturned flange 43 around the nose portion and a curled bead 42 around the handle portion. A further scoreline 24 in the panel defines a tear-out portion 26, which is secured to the tab adjacent the handle portion by a rivet 30 and which is torn away on initially raising the tab handle portion to form a vent opening prior to rupturing the flap 20.
Patent GB-1347400-A (GB)
Title: Weighing device
IPC: G01G3/14
Filed: 1971-04-19
Abstract: 1347400 Weighbridges BOFORS AB 19 April 1971 [13 April 1970] 26791/71 Heading G1N A weighbridge comprises a square frame 1 (Figs.1, 3) with fillets 2 in each corner to which cylindrical load cells 3 are secured and a horizontal platform 4 carrying bearers 7 resting on the four cells 3. Each load cell consists of a rod 11 rigidly secured in a hole in a fillet 2 and an outer sleeve 9 with strain gauges, between the sleeve and the rod. The sleeve 9 carries an axially displaceable, rotatable member 8 which locates in a concave surface 10 of a bearer 7. A vehicle driven on to platform 4 causes it to be laterally displaced relative to the load cells, but the shape of the bearer surface enables the platform to return to its normal position. The contacting surfaces may alternatively be eccentric; the platform may be triangular or rectangular, with three or six load cells.
Patent GB-154058-A (GB)
Title: Improvements relating to the manufacture of sheet metal boxes
IPC: B21D51/52
Filed: 1919-10-31
Abstract: 154,058. Griffiths, H. A., and Griffiths, R. H. Oct. 31, 1919. Setting eyelets.-Decorated metal sheets for use in the manufacture of boxes are superimposed in proper relationship and secured so that blanks may be punched as from a single sheet. The sheets a are placed on guides b and against a stop c and operated on by one or more cutters d which make holes and then by riveting tools e which flatten down the projecting metal, thus connecting the sheets as by an eyelet. The tools are carried by slides f reciprocated by bell cranks h, links i, j and a crank k driven through a hand-operated clutch from the pulley l.
Patent GB-1107455-A (GB)
Title: Tube-and-shell-type heat exchangers
Inventor: KROME HELMUT
IPC: F28D7/16
Filed: 1965-06-25
Abstract: 1,107,455. Tubular heat exchangers. BADISCHE ANILIN- & SODA-FABRIK A.G. 25 June, 1965 [27 June, 1964], No. 26949/65. Heading F4S. A tube-and-shell type heat exchanger for enhancing flow without a high pressure drop of a heat exchanging gas over the polygonally distributed removable tube bundle 1 thereof comprises a pressure-resisting shell 6 spaced by an annular one-piece or multipart web 10, capable of compensating for differing axial changes of the bundle and shell, from a double-walled hollow jacket 7 surrounding almost the whole axial length of the tube bundle. An inlet 9 for the heat exchanging gas flowing over the bundle is sealed from direct communication with an outlet 11 therefor by the web 10, thus forcing the gas through the labyrinth between the tubes of the bundle, which is held conventionally by tube sheets 2, 3 mounted peripherally in stuffing-boxes 4, 5 on the shell 6, which also has an inlet 12 and an outlet 13 for the fluid flowing through the tubes of the bundle. The inlet and outlet 9, 11 may be varied in position along the shell, as disclosed in Figs. 2, 3 (not shown), the latter of which discloses a tube sheet 3 having a cylindrical axial extension 14 attached by a collar 15 held in a clamp 16 to the tube shell, while the tube sheet 2 is connected thereto by a corrugated tubular compensator 17 allowing for different axial expansions of the components. When the tube bundle is not removable from the shell, the web 10 may be in the form of a corrugated ring.
Patent GB-426040-A (GB)
Title: Improvements in engraving machinery
IPC: B44B3/00
Filed: 1933-09-22
Abstract: 426,040. Hydraulic dashpots. TAYLOR, W., and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Sept. 22, 1933, No. 26997/34. Divided application. [Class 108 (iii)] [See also Group XVI] In engraving-machines of the kind comprising a work-support and a rotary cutter adapted for relative motion in a plane transverse to the cutter axis and manuallyoperated means for so moving them, the rate of movement is limited by means of an hydraulic check. As applied to a machine of the type comprising a rotary cutter carried by an arm C pivoted at b to an arm B movable about a fixed axis a, the cutter and a tracer O being connected by a pantograph linkage K, L, M, N, the pivots at a and b are in the form of hydraulic dashpots comprising a shaft b2 carrying one or more radial blades e3, e<4> moving in a cylinder E filled with oil and provided with fixed blades e<5>, e<6>. The moving and fixed blades together form compartments g, g<1>, and h, h<1>, the former being connected by a hole G drilled through the shaft b<2> and the hub of the moving blades, and the latter by a similar hole H. An axial passage connects the holes, and the flow from one pair of compartments to the other may be varied by means of a valve adjustable by means of a screw I.
Patent GB-391029-A (GB)
Title: Radio-electric musical instrument with keyboard and thermionic valves
IPC: G10H1/32
Filed: 1932-09-29
Abstract: 391,029. Inductances. COUPLEUX, E. E., 24, Rue Esquermoise, Lille, Nord, and GIVELET, J. A. M. V. DE P., 24, Rue Bois-de-Vent, Paris, both in France. Sept. 29, 1932, No. 27086. Convention date, Nov. 12, 1931. Addition to 359,967, [Group XXXVIII]. [Class 37.] A unit facilitating assembly of the electrical musical instrument of the parent Specification comprises an iron-cored self-inductance 1 ; a reactance coil 2 ; a capacity with resistance, and a relay as in Specifications 393,821 or 393,822, within antimagnetic screens 5, 11 ; an external valve 6 ; and terminals 20 ; all mounted on a copper-covered base 9 provided with further screens 10, 12. For tuning, the core 16 of the inductance, which core is of either U- or bar-form with the coil in the former case on one limb, has an armature 8 adjustable bv a screw 13 with an external knob 7. The screw 13 and fixed nut 14 are of copper. The armature 8 may slide or may pivot about one end, or may be in the form of a disc.