baber/WOPTO huggingface dataset:
Patent GB-1531662-A (GB)
Title: Prevention of fouling in vinyl chloride polymerisation reactors
IPC: C08F14/00
Filed: 1977-02-22
Abstract: 1531662 Anti-fouling agents in vinyl chloride polymerizations BF GOODRICH CO 22 Feb 1977 [23 Feb 1976] 07318/77 Heading C3P Polymer buildup in reactors used for aqueous phase vinyl chloride polymerizations is prevented by use of a combination of (i) a watersoluble inhibitor selected from either (a) alkali metal borohydrides and substituted borohydrides, or (b) nitrites of NH 4 <SP>+</SP>, alkali metals or alkaline earth metals, and (ii) a Nigrosine (i.e. Aniline Black), while using as the polymerization initiator a water-insoluble C 4-14  dialkylperoxydicarbonate. The vinyl chloride monomer may optionally be copolymerized with monomers containing the CH 2  = C < group. In the examples vinyl chloride is homopolymerized using various combinations of nigrosine, NaBH 4  and NaNO 2  as the inhibitor, and di-sec. butyl peroxydicarbonate, di-(2-ethylhexyl) peroxydicarbonate and di-(4-t-butylcyclohexyl) peroxydicarbonate as initiators.
Patent GB-741743-A (GB)
Title: Machine for rotary printing, cutting and folding
IPC: B41F13/44
Filed: 1953-03-17
Abstract: 741,743. Rotary printing-machines; delivery apparatus. BURGMER, J. March 17, 1953 [March 27, 1952], No. 7402/53. Classes 100 (1) and 100 (2). All-size machines.-In a rotary printing machine combined with cutting and folding mechanism and of the kind in which the printing cylinders are interchangeable for the purpose of varying the page size, the drive is connected to two gear trains; one having a change-speed gear driving the printing cylinders, web-cutting and sheet folding mechanisms &c., the speed of which varies with a change in the size of the printing cylinders, and the other driving the remaining mechanisms, e.g. inking mechanisms, at constant speed. The constant speed drive is effected through shaft a driven from motor CO through gears C1, C2, C3, C4, C5 and C6, the final gear C6 being fixed to shaft a. Bevel gears on shaft a drive the inking rolls d1, d2, d3 and web-feeding rolls e 1 and f1. The variable speed shaft b drives the printing cylinders g1, g4, g6 and co-operating impression cylinders g2, g3, g5 through worm gears j. The web cutting cylinder h and the folding mechanism (not shown) are also driven from shaft b. The variable speed shaft b is driven from gear C4 through gears C7, C10, C9 and C8, the last gear being carried on an arm swinging about the axis of gear C4. When the printing cylinders are changed the gear C9 is also changed so that the surface speed of the cylinders remains the same. The gear C8 is adjusted on its mounting to cause it to mesh with the new gear C9. As shown in Fig. 2, the worm gears j for driving the printing cylinders g are mounted between spaced parallel side frames i2,. i3 and have rigidly connected thereto driving discs o. The printing cylinders are mounted for circumferential and longitudinal adjustment (not described) on hollow shafts k clamped between aligned conical centring members l1, l2 the former being displaceable towards and away from the latter by a handle. A pin m engages in a notch n in each disc o to transmit the drive to the corresponding shaft k and means are provided for clamping the pin in the notch. The outer wall of the printing cylinder is extended beyond' the end walls r1 r2 providing a projecting flange to facilitate handling. Cutting cylinders.-The web cutting cylinder h has a transverse blade b1 Fig. 1, co-operating with a counter-cutting blade h3. The webcutter is driven from the variable speed shaft b so that the lengths of web cut off vary according to the diameter of the printing cylinders.
Patent GB-575888-A (GB)
Title: Improvements relating to electrical contacts and methods of producing them
IPC: H01H11/04
Filed: 1944-04-24
Abstract: 575,888. Switch contacts. BRITISH THOMSON-HOUSTON CO., Ltd. April 24, 1944, No. 7542. Convention date, April 24, 1943. [Class 38 (v)] [Also in Group XXII] In producing a contact having a silver contact surface 11<1> on a copper contact finger 11, a recess 15 is punched in the finger which is .then silver-plated. A flanged silver button 16, with flange 17 downwards, is placed in the recess and is fixed therein by a cold punch 18 which clinches the edges of the recess 15 over, and bonds the silver button to the plated surface of the recess. If an arcing contact is required, the button may be formed of a material known under the Registered Trade Mark "Elkonite." In this case, the button surface extends above the surrounding copper finger. Specifications 476,375, 492,088, [both in Group XXII], and 541,612 are referred to.
Patent GB-1137084-A (GB)
Title: Cyanine dyes and photographic emulsions containing them
IPC: C07D277/84
Filed: 1966-02-28
Abstract: 1,137,084. Cyanine dyes. EASTMAN KODAK CO. 28 Feb., 1966 [1 March, 1965], No. 7594/68. Divided out of 1,137,083. Heading C4P. [Also in Division G2] The invention comprises a cyanine dye of the formula wherein R, R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each H, alkyl, aralkyl, alkoxy, aryl or substituted aryl, aryloxy, halogen, cyano or acetyl; W is S, O, Se or -(R<SP>5</SP>)C(R<SP>6</SP>)-, wherein R<SP>5</SP> and R<SP>6</SP> are each alkyl or aryl which may bes ubstituted; R<SP>11</SP> is sulphoalkyl; m is 0, 1 or 2; R<SP>12</SP> is H, alkyl, aryl or substituted aryl, but is H when m is 2; R<SP>13</SP> is alkyl, sulphoalkyl, carboxyalkyl or aryl or substituted aryl; Z is the non-metallic atoms necessary to complete a 5- or 6-membered heterocyclic ring; and d is 0 or 1. The dyes may be prepared by the usual condensation reactions.
Patent GB-1078781-A (GB)
Title: Hot working of metal castings
IPC: C22F1/04
Filed: 1963-04-26
Abstract: 1,078,781. Casting-machines and foundry plant; forging; working at specified temperatures; making door handles and clips for railways. J. F. W. SCHLEGEL. July 27, 1964 [April 26, 1963], No. 7688/63. Headings B3A, B3F, B3H and B3V. Cast metals are cooled from the molten state to a transition range in which low temperature crystal lattice elements begin to form and are then forged without the temperature dropping below this range, the forged workpieces having substantially the same mass as but a larger surface area than they had before forging. Cast iron is melted in a graphite rod electric furnace 1, discharged into a crucible 2 and poured into split moulds 4 carried on a rotary table 3. After ejection from the mould the cast workpieces are placed in a soaking furnace 5 to cool down to the transition range whereupon they are forged in press 6 which may be operated by a hammer or by a screw. The workpieces may be transferred manually or mechanically to and from the soaking furnace. Each mould, Fig. 2 (not shown), comprises two parts (7, 8) which can be opened or closed by pneumatic or hydraulic means (9) and when opened pins (10) engage an abutment (12) and eject the casting. The feeder heads are sheared off by means (13) actuated by a pneumatic or hydraulic motor 14. The invention may also be used with aluminium alloy or commercially pure aluminium. Reference is made to making door handles, Fig. 3 (not shown), clips for railway rails, Figs. 5, 6 (not shown), door furniture, window fasteners, connecting rods, high tensile bolts and screws, brake discs and bearing races. Working at specifced temperatures.-Cast iron is forged within the range 906-721‹ C. Aluminium is forged at 450-480‹ C.
Patent GB-472227-A (GB)
Title: An improved production of polymethin-dyestuffs
IPC: C09B23/06
Filed: 1936-03-14
Abstract: Polymethine dyestuffs containing X-alkyl, X-aryl or X-aralkyl groups (X = O or S) at the meso-C atom are made by condensing quaternary heterocyclic ammonium bases having a reactive methyl group in a - or g -position to the nitrogen atom or the salts thereof with the esters of iminocarbonic acids or of iminodithiocarbonic acids or salts thereof.  They are sensitizing-agents for silver halide emulsions and also act as stabilizers.  In examples (1) and (2), ethyliminodithiocarbonic acid diethylester (2) mols.) is condensed with 2-methylbenzthiazole iodoethylate or 2 : 6-dimethylquinoline iodoethylate (1 mol.); (3) iminocarbonic acid diethylester (2 mols.) is condensed with 2-methylbenzselenazole iodoethylate (1 mol.).
Patent GB-765549-A (GB)
Title: Process for the production of spinning solutions of acrylonitrile polymers and copolymers, spinning solutions, and synthetic threads produced thereof
IPC: D01F6/18
Filed: 1955-03-17
Abstract: Spinning solutions are obtained by dissolving polyacrylonitrile or a copolymer of acrylonitrile, e.g. with acrylamide, in a mixture of dimethyl formamide and one or more acetals, for example those obtained by reacting an aldehyde such as formaldehyde, acetaldehyde or benzaldehyde and an alcohol such as methyl, ethyl, propyl or n-butyl alcohol, or glycol, the acetal preferably being added in an amount of 5-15 per cent of the dimethyl formamide.
Patent GB-730333-A (GB)
Title: Improvements in or relating to linear-dimension gauging instruments
Inventor: LOXHAM JOHN
IPC: G01B5/00
Filed: 1951-12-22
Abstract: 730,333. Linear-dimension gauges. SIGMA INSTRUMENT CO., Ltd. March 23, 1953 [Dec. 22, 1951], No. 7976/53. Divided out of 730,285, [Group XXXVIII]. Class 106 (2). A gauging fixture comprises flexible spring strips effectively connecting a stationary reference anvil and relatively movable gauging anvil and a rigid flange-like part extending laterally from a part moving with the gauging anvil into a groove formed m a stationary part in order to prevent distortion of the spring strips if a turning moment is exerted on the gauging anvil. The fixture may be employed upon a turret comparator and is shown, Fig. 3, mounted on a turret sleeve 86 held to an undercut land 126 by clamping blocks 127, 129 with fixing screws 130. A base member 131 is secured to the block 127 by screws 132 and a block 133 is secured to the member 131 by screws 134, Fig. 1. Spring strips 145, 147 are secured at one end to the block 133 between lateral extensions 142, 143 and end cheeks 144, 146 and at their other ends to the ends of a movable block 148. A laterally extending flange 150, Fig. 2, fits beneath an undercut part of the block 133 and carries a peg 139 engaging a nose 138 of a lever 136 urged, by a spring leaf 141, clockwise about a pivot 137 in the floor of a groove 135 in the block 133. The front of the block 148 receives a movable anvil 151 held by screws 152 and having threaded therein a screw 153 with domed head for transmitting gauging movements with a lock:nut 154 for fixing it in an adjusted position. A reference anvil 156 is secured to the base block 131 by screws 157 and a domed screw 155 is also secured thereto to provide a reference in relation to the screw 153. A plate 158, Fig. 4 (not shown) may be attached to the base 131 to indicate the dimension that is to be gauged with the aid of the fixture and the plate is preferably transparent with a colour beneath to indicate the tolerance. The anvils are removable so that they may be shaped according to the requirements of the workpiece to be gauged. Specification 730,285, [Group XXXVIII], is referred to.
Patent GB-683150-A (GB)
Title: A change speed friction drive for gramophones
Inventor: COSTA HARRY DA
IPC: G11B19/265
Filed: 1950-03-30
Abstract: 683,150. Change-speed friction gearing. PLESSEY CO., Ltd. March 14, 1951 [March 30, 1950], No. 7995/50. Class 80 (ii). A coned, or, as shown, stepped, friction driving wheel 25 on the shaft of an electric motor engages a vertically and horizontally movable friction idler 20, in its turn engaging the inner rim of a gramophone turntable on a base plate 2. The friction idler 20 is carried by a plate 19 slidably mounted on a vertically movable carrier plate 11 coupled to shoes 15 on a blade spring 14 secured to the base plate 2. The shoes 15 slide on a ramp 16 to produce the required vertical movement, the lamp being moved linearly by linkage 6, 8 controlled by a gear on a knob spindle engaging a rack 7. The friction idler 20 is urged into engagement with the driving and driven parts by a tension spring 30 connecting a pivotable member 27 to an arm 26 in turn connected to the sliding plate 19. The pivotable member 27 has two stable positions, corresponding to the engaged and disengaged positions of the friction idler, a pin 28 on the pivotable member 27 sliding in a V-shaped groove in the arm 26. The. pivotable member 27 is actuated by an arm 31 connecting it to a switch 32 controlling the electric driving motor of the gramophone.
Patent GB-526317-A (GB)
Title: Improvements in or relating to drop hammers
IPC: B21J13/04
Filed: 1939-03-13
Abstract: 526,317. Power hammers. ALLIANCE MACHINE CO. March 13, 1939, No. 8031. Convention date, March 28, 1938. [Class 83 (iv)] The bases 10 of the frames 5 carrying the guides 7 for the ram of a drop hammer are provided with V-shaped projections 11 engaging corresponding recesses in the anvil 2. The projections may extend crosswise of the hammer to prevent relative movement from front to back. Oil cups 15 and oil passages are provided to secure lubrication of the interengaging surfaces. Bolts 20 provided with coil springs 22 secure the frames to the anvil. Scale is prevented from entering the bearing surfaces by spring metal sheets 38 provided at their lower edges with lugs 39 and located by lugs 41 and recess 40. Cross adjustment of the frames is effected by wedges 25 with notched upper surfaces engaged by co-operating notches in clamps 31 located in guides 33 and secured to the anvil by bolts 34 fitted with springs 36.
Patent GB-622438-A (GB)
Title: Improvements in non reversible operating devices
IPC: F16B1/04
Filed: 1947-03-25
Abstract: 622,438. Locking levers. HOUPLAIN, R. B. March 25, 1947, No. 8091. Convention date, Sept. 24, 1940. Addition to 605,583. [Class 80 (iii)] In a locking mechanism according to the parent Specification the driving member comprises a lever and an intermediate releasing mechanism, the lever being pivoted on the cam integral with the driven shaft at a point off the axis and near the periphery of the cam, and also connected with the cam in the vicinity of the periphery, with clearance, by means of a stop. In an embodiment as shown in Figs. 1 and 2, the driving shaft 1 has an integral cam 4 having three pairs of opposed sloping surfaces 5, 5a, 6, 6a, 7, 7a on which are six jamming balls or rollers 8, 8a, 9, 9a, 10, 10a co-operating with a fixed drum 2. A ring 19 pivoted on the cam 4 has projections 19, 20, 21 between the pairs of rollers, and is connected by a pin 17 to an operating handle 16 pivoted about an eccentrically mounted pivot 14. The remote end of the handle 16 has a hole 23 engaging a resilient pin 24, rigid with the cam 4, with clearance. Movement of the handle in the direction of the arrow F first moves the ring 19 to release the jammed rollers and at the same time reacts on the cam 4 to assist in the freeing, further movement of the lever causes the edge of the hole 23 to contact the pin 24 and drive is imparted to the shaft 1. Release of pressure on the handle 16 results in movement of the shaft 1 causing jamming of the appropriate rollers to lock the shaft in both directions of rotation. A second embodiment is shown in which the driven shaft takes the form of a tubular shaft and the handle is pivoted on a radial extension of the cam. In the Specification as open to inspection under Sect. 91, a mechanism is shown in which motion is imparted to a rectilinearly moving member such as a cable. The hand lever rotates, through linkwork, an eccentric roller which has a crank pin operating a plate carrying, ball release fingers, the balls cooperating between a cam on the driven member and the inner surface of the stationary slide for the driven member. Movement of the roller moves the cam and release fingers in opposite directions and then moves the driven member as a whole. This subject-matter does not appear in the Specification as accepted.
Patent GB-641121-A (GB)
Title: Catalytic improvement of hydrocarbon synthesis product
IPC: C10G35/06
Filed: 1948-03-18
Abstract: A liquid hydrocarbon synthesized from carbon monoxide and hydrogen is improved by heating in the presence of a siliceous cracking catalyst which has been severely deactivated and plant contaminated, which is defined as one having a D+L value of the order of 20 or less as determined by a described test.  Spent silica - alumina or silica - magnesia gel or bentonitic clay catalysts are specified, for example mixed silica-alumina in the ratio 88-86 : 12-14 or silica-magnesia in the ratio 70-60 : 30-40 by weight.  Contaminating iron compounds are generally present in amounts of 0.3-1 per cent.  Feed rates are about 2-3 vols./vol./hr. or higher, e.g. up to 5 at temperatures rising to 950-975 DEG  F.  Virgin or cracked gas oil may be mixed with the synthesized hydrocarbon.  The fluidized catalyst technique may be used.  The products may be separated into gasoline, gases which are treated to polymerize the olefins, and heavy naphtha which may be recycled.  Results are given of runs using a product boiling up to 600 DEG  C. with about 75 per cent in the gasoline range, and a mixture containing 83-84 per cent C5-430 DEG  F. gasoline and 12.5-14 per cent gas oil by volume.  Reduction in the content of oxygenated compounds and isomerization of olefins is shown.
Patent GB-398549-A (GB)
Title: An improved automatic burglar alarm and/or burglary preventive device
IPC: G08B13/04
Filed: 1932-03-18
Abstract: 398,549. Automatic burglaralarms. KNIBBS, R. A., 29, Wood End Park Crescent, Hayes End, Middlesex, and JOHNSON, J. F. W., 3, Carlisle Street, Westminster Bridge Road, London. March 18, 1932, No. 8134. [Class 118 (i).] The circuit of a burglar-alarm protecting a shop window D, is automatically closed when fragile, tensioned glass rods 1, 2, 3 having hook-and-eye connections are broken or displaced so as to release the spring-pressed contact 17 of a switch 8. The alarms operated by the circuit may include a combined lamp 23 and siren signal 22 arranged outside the building, and a smoke bomb 24 and a gas bomb 40 within the window. The glass rods 1, 2, 3 may be filled with a deleterious gas which is released when a rod is broken. Time switches and a pilot lamp may be included in the circuits. A rod 1a under the counter may be broken by the assistant's foot in order to operate another switch 8. A third switch 8 near a safe F may be operated by the fracture of a rod 29 due to an intruder stepping on a yielding, floor 26, which is normally held by bell cranks 31. A time switch may delay the action of this switch.
Patent GB-430153-A (GB)
Title: Improvements in or relating to typographic casting machines
IPC: B41B7/04
Filed: 1935-03-15
Abstract: 430,153. Type - making machines. PIERPONT, F. H., Oakfield, Redhill, Surrey, and MONOTYPE CORPORATION, Ltd., 43, Fetter Lane, London. March 15, 1935, No. 8172. [Class 100 (iii)] Moulds, low quad.-In mould-blade operating- mechanism for casting low quads, of the kind described in Specifications 22303/13, [Class 100 (iii)], and 402,013, adjusting-means are provided to effect compensation for wear. The mould-blade is operated, as heretofore, by cither of two levers L, L<1>, Fig. 1, one or the other of which is selected and operated by an interponent N pivotally mounted on the driving-lever M that operates the centring-pin B. According to the invention, the interponent is operated by a lever A, pivoted on the lever M and having an adjustable boss or head A<1>, Fig. 5, which engages a slot or channel in a head B<1> on the centring-pin. The boss A<1> is formed on an arm A<2>, which is pivotally mounted on the lever A, and can be adjusted relatively thereto by an eccentric pin A<3> engaging in a fork A<4>. A clamping-bolt A<6> passes through a slot in the lever A and screws into the arm A<2>.
Patent GB-934861-A (GB)
Title: Improvements relating to shirt and like collars
Inventor: LOCKWOOD ARTHUR WILLIAM
IPC: A41B3/00
Filed: 1961-03-07
Abstract: 934,861. Shirt collars. TRUBENISED (GT. BRITAIN) Ltd. Feb. 16, 1962 [March 7, 1961], No. 8259/61. Class 141. A shirt collar has an interlining made from two pieces of material which are overlapped and bonded together at a zone which will extend along the top of the band of the finished collar to determine the foldline. One or both of the pieces is coated at least in the overlapping zone with plasticized cellulose acetate or other heatsensitive adhesive, and the bonding is carried out by locating and overlapping the pieces in a work-holder and operating a pressing appliance to apply heat and pressure to the overlapping parts. One or both pieces of the interlining may be completely covered with adhesive so that when the interlining is attached to one-piece outer collar plies and turned, it may be bonded over a corresponding part of its area to the outer plies by hot pressing.
Patent GB-474569-A (GB)
Title: Improvements in axle drive gears for swinging half axles of motor vehicles
IPC: B60K17/16
Filed: 1937-03-22
Abstract: 474,569. Motor vehicle axles and driving-gear. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. March 22, 1937, No. 8379. Convention date, June 6, 1936. [Classes 79 (ii) and 79 (iv)] The driving pinion 1 and the driven gear wheel 2 of a swinging half-axle 11 are journalled in a member 5 which is secured to the half-axle pivoted on the chassis. The meshing of the gears is thus unaffected by deformation of the half-axle, and the gears can be assembled and "run-in" apart from the half-axle. The member 5 has an extension 6 which is inserted in and can oscillate in a stationary axle casing 7. The half-axle 11 has a fork 8 which fits over an extension 6a of the member 5 and is oscillatably mounted on the casing 7 by means of part-sleeves 9. The fork 12 of the other half-axle (not shown) also oscillates on the casing 7 and the two forks are held in place by rings 10.
Patent GB-1499181-A (GB)
Title: Dyes for thermoplastics
IPC: C08L67/00
Filed: 1975-02-28
Abstract: 1499181 Dyestuffs based on diaminopyridines BASF AG 28 Feb 1975 [1 March 1974 2 Aug 1974 8 Aug 1974] 8384/75 Heading C4P [Also in Division C3] Thermoplastic materials are coloured with a dye of the formula where A' is A or D is the radical of a diazo component, R is H, alkyl, methylphenyl or phenyl, X is H, carbamoyl or cyano, Z is divalent hydrocarbon optionally containing -O-, -S- or substituted -N- and the A's are independently H, optionally substituted alkyl, cycloalkyl, aralkyl, phenyl or acyl or two A's together with nitrogen form a saturated 5-7 membered heterocyclic ring. D is preferably derivatived from an amine of the benzene, benzthiazole, benzisothiazole, thiazole, thiadiazole, thiophene, azobenzene or anthraquinone series. The dyes are prepared by reaction of a diazotized amine of the formula DNH 2  with a compound of the formula
Patent GB-877888-A (GB)
Title: Reinforced seal ring
IPC: F16J15/32
Filed: 1958-03-17
Abstract: 877,888. Piston packings; joint-making packings. TANNER, C. L. March 17, 1958 [March 18, 1957], No. 8429/58. Classes 122 (1) and 122 (3). A seal ring 15 comprises a flexible ring 16 having an annular groove 18 consisting of a relatively wide outer section 20 and relatively narrow inner section 21 separated by a shoulder, and resilient means 24 provided in the outer section 20 for resisting compression of the flexible ring 16. The ring 16, which may be formed from metal or plastics such as polytetrafluoroethylene, is shown in Fig. 5 as mounted in a groove 14 in a piston 11, and the resilient means 24 is a corrugated metal strip having overlapping ends; if desired, the inner section of the groove may be a mere slip. When the ring 15 is applied on a flanged pipe joint, the groove is arranged normal to the axis of the ring and in either the inner or outer periphery. In another arrangement, the resilient means 24 is in the form of a ring of rubber or plastic material lacking the wearing quality of the material of the ring 16.