baber/WOPTO huggingface dataset:
Patent GB-356508-A (GB)
Title: Improvements in the manufacture and production of colour lakes
IPC: C09B69/06
Filed: 1930-09-29
Abstract: Lakes of basic dyestuffs and of leuco-compounds thereof are manufactured by precipitating solutions of leuco-compounds of basic dyestuffs of the triarylmethane series, which may contain acid groups, with solutions of complex inorganic acids or a mixture of their components in the absence of oxidizing agents, and if desired subsequently oxidizing the colour lakes of the leuco-compounds thus obtained, with or without isolation, to the colour lakes of the dyestuffs.  Oxidizing agents specified are hydrogen peroxide, arsenic acid, ferric oxide hydrate, chloranil, lead dioxide, potassium permanganate and sodium bichromate.  The oxidation may be carried out at different temperatures and at atmospheric or increased pressure, and may be performed in the presence of substrata or with the addition of dispersing agents such as salts of alkylated naphthalenesulphonic acids, sodium cholate or products of the type of Turkey red oils.  In examples: (1) the leuco-compound of Methyl Green is precipitated with a hydrochloric acid solution of sodium phosphotungsticmolybdate and the product oxidized with potassium permanganate; (2) the leuco-base of Rhodulin Blue 6G is similarly precipitated with sodium phosphotungstate and the product dispersed with sodium diisopropylnaphthalenesulphonate and oxidized with potassium permanganate; (3) Diamond Green G leuco-base is precipitated with an acid solution of sodium phosphotungsticmolybdate and the product oxidized with potassium permanganate; (4) the leuco-base of Acronol Brilliant Blue acidified with sulphuric acid is precipitated with sodium phosphotungsticmolybdate in the presence of diisopropylnaphthalenesulphonic acid and the product oxidized with sodium bichromate; (5) the leuco-base of Diamond Green G acidified with sulphuric acid is mixed with diisopropylnaphthalenesulphonic acid, precipitated with sodium phosphotungsticmolybdate and the product oxidized with potassium permanganate.
Patent GB-1125198-A (GB)
Title: Electrical connector assembly
IPC: H01R13/64
Filed: 1967-06-23
Abstract: 1,125,198. Two-part couplings. INTERNATIONAL STANDARD ELECTRIC CORP. 23 June, 1967 [27 June, 1966], No. 29105/67. Heading H2E. A cable connector for use in explosive atmospheres includes a coupling nut 1 with oppositely-handed screw threads for engaging corresponding threads on the outer shells 2 and 3 of the connector parts. To couple the parts, the nut 1, which is carried by the shell 2, is screwedly engaged with the shell 3 until a pin 15 on the nut engages a stop on the shell 3, the nut then being rotated in the opposite direction to draw the connector parts together within the nut. The shells 2 and 3 surround respective contact-carrying inserts 4 and 5 and include a polarizing pin and slot 36. The shell 2 has a pivoted U-shaped bracket 13-12 carrying a bar magnet 14 which, when the bracket is swung into the position shown, causes closure of contacts of reed switches such as 7, which are connected between the contacts of the insert 5 and conductors of a cable 9. The reed switches 7 are protected by a sponge pad 8 and are carried by a tag board 6 which may include printed circuitry, the magnet 14 being either a permanent magnet or an electromagnet. A locking screw 16 on the bracket 13 engages an aperture 38 which also allows injection of a potting compound in the wiring cavity of the shell 3. Instead of the inlet cables 9, 39 being at an obtuse angle they may be co-linear. In a further modification (Figs. 3-7, not shown) the magnet 14 is circular.
Patent GB-377035-A (GB)
Title: Improvements in or relating to high tension condensers
IPC: H01G4/38
Filed: 1931-10-20
Abstract: 377,035. Condensers. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 20,1931, No. 29161. Convention date, March 11. [Class 38 (ii).] A unit condenser for stacking in series connection comprises a single wound condenser or a set of condensers 11 .. 14 in a rigid jacket 10 of insulating material with flexible bottoms 19 and lids 20 of metal which form the means for making contact with adjacent units. The containers are filled with oil &c. and sealed.
Patent GB-813588-A (GB)
Title: Improvements in or relating to garment pockets
IPC: A41D27/20
Filed: 1956-09-24
Abstract: 813,588. Garment pockets. WESCOT Ltd., [formerly WESTCOT OVERALL MANUFACTURING CO. Ltd.], and PETTIT, H. E. Oct. 23, 1957 [Sept. 24, 1956], No. 29180/56. Class 141 An elongated pocket for carrying tools &c. has its lower end, sides, and the major part, or all, of its upper end closed, and is provided with at least one opening at or near its upper end for the insertion and removal of a rule &c. In Fig. 1, the pocket comprises three parts 14-16 made of similar blanks (Figs. 2-5, not shown) folded to the shapes shown in Fig. 1, and stitched below the hip pocket 29 on an overall. The edges 18, 19, 21 and 24 are left free to provide entrances to the pockets. The corners of the pocket openings are reinforced with strong stitching 36 and the lower part of the pocket has a reinforcing inner layer 31. In a modification, Fig. 7 (complete) (not shown), the triangular gap between the edges 21, 24 is omitted, the opening between these two edges comprising a straight slit. In a further modification, Fig. 8, the pocket has only two entrances 18, 42a, and the upper edge 43 is closed.
Patent GB-992582-A (GB)
Title: Helical spring suspension for vehicles
IPC: F16F1/12
Filed: 1961-08-14
Abstract: 992,582. Springs. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.A.G.A. S.p.A. Aug. 14, 1961 [Oct. 26, 1960], No. 29265/61. Heading F2S. [Also in Division B7] An anti-vibration washer comprises a rubber ring, Figs. 2, 3, in the form of a U-section washer 21 having concentric inner, outer, and intermediate ribs 31, 29, 30 on its mains loadtransmitting lower surface 26 and radial ribs 32 which divide the intervening annular grooves into recesses 27, 28. The ribs 32 are co-extensive with vertical ribs 44, 45 on the outer surfaces respectively of the inner and outer side walls 23, 24 of the washer upper ribs 42, 43 of which, with the corresponding lower inner and outer ribs 31, 29, form recesses 40, 41. In a spring suspension unit, Fig. 1, in which a helical spring 19 is compressed between the base 18 of a cavity 17 in the vehicle body 13 and a plate 14 carried by a pivoted arm 10 rubber washers 20, 21 are interposed between the ends of the spring 19 and the corresponding cavity base 18 and a step 15 in the plate 14 the lower washer 21 preferably being a press-fit over an upstanding lip 16 on the inner edge of the plate 14. The recesses 27, 28 constitute between <SP>2</SP>/ 5  and 2/3 of the lower surface 20 of the washer which advantageously has a shore hardness of between 60 and 85. In a modification, Figs. 6, 7, the washer is of L-shaped cross-section the sides cooperating with the parts 15a, 16a of the plate 14a and having recesses 50 which are formed between radial ribs 51 and upper and lower circumferential ribs 52, 53. In all of the embodiments the thickness of the bottom wall of each recess should not exceed half that of the corresponding wall of the washer.
Patent GB-479888-A (GB)
Title: Improvements relating to hydraulically-actuated variable-pitch airscrews for aircraft
IPC: B64C11/42
Filed: 1936-10-28
Abstract: 479,888. Fluid - pressure servomotor - control systems. BRISTOL AEROPLANE CO., Ltd., MILNER, H. L., and FEDDEN, A. H. R. Oct. 28, 1936, No. 29335. [Class 135] [Also in Group XXXIII] In hydraulic systems for actuating the variable pitch mechanism of air screws, the return conduit to the hydraulic pump is connected with the discharge side of the lubricating oil pump of the engine, so as to maintain therein a positive pressure. The hydraulic system includes a piston 11 and cylinder 10 mounted within the boss the cylinder being coupled to the blade for changing the pitch. In the usual manner passages along the hub and crank-shaft are connected by pipes 23, 28 with the casing of the hydraulic pump. This pump includes a cylinder block 30 which is rotatable by power and has bores 31 in which are inserted pistons 32, the rods 33 of which are coupled to a pin 34. The eccentricity of this pin which is carried by an end plate 35 can be varied by movement of that plate longitudinally, and to such an extent as to provide for reverse flow. In one construction, a centrifugal governor 44 is connected by pivoted lever 50 with the adjusting rod 52 of the plate 35. For the purpose of setting the speed at which the governor is intended to control the apparatus, a further spring 53 may be coupled to the rod 52, the degree of tension of which is adjustable by a screw and nut gear from the hand wheel 55. The two conduits 23, 28 are connected by pipes 61, 62 through valves in a common casing 60 which has a connection 63 to the delivery pipe 64 of the engine oil lubricating pump 65 the latter having a pressure control valve 69. The valve gear within the casing 60 comprises two valves 70, 71, with interengaging guide sleeves 75 and under a common spring restraint 76, the arrangement being such that these valves form pressure relief valves for the two pipes. Carried by these two valves are smaller valves 77, 78, which are under spring control 80 whereby they are adapted to lift when the pressure within the conduit, which for the moment is acting as a return conduit, falls below that in the pipe line 63 whereby the pressure in the conduit is built up to that in the pipe line 63. Specification 250,292, [Class 114], is referred to.
Patent GB-494992-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K5/04
Filed: 1937-10-27
Abstract: 494,992. Fountain pens. LIVSEY, C. Oct. 27, 1937, No. 29336. [Class 146 (iii)] In a fountain pen of the kind in which a relatively short self-filling sac 6 is attached to the rear end of the barrel 1, the sac is deflated by means of a spring bar adapted to flex throughout its whole length, including the part housed in a plunger at the rear end of the sac, whereby the use of the normal rigid presser bar is avoided. The lower part of the barrel is preferably of transparent material and may be of the type described in Specification 469,699. The sac is enclosed in a part 7 which may also be of transparent material and is screwed to the end of the barrel, a metal collar 10 screwing into its rear end to provide a guide for the plunger 11 and a mounting for a protecting cap 12. The plunger is in the form of a large-diameter, inverted - cup - shaped member flanged at its inner end to prevent removal from the collar 10. The spring bar 14 is bent to U -shape at the end, lying in the plunger so as to facilitate flexing throughout its whole length. If desired, the bent end of the spring may be oontinued to form a second limb lying along the opposite side of the sac. According to the Provisional Specification, the double spring bar may be duplicated, the two bars lying at right-angles to each other.
Patent GB-1193793-A (GB)
Title: Transfer Apparatus for a Multi-Colour Printing Press
IPC: B41F22/00
Filed: 1968-06-20
Abstract: 1,193,793. Printing apparatus. MIEHLEGOSS-DEXTER Inc. 20 June, 1968 [30 June 1967], No. 29338/68. Heading B6C. Sheets being printed upon are transferred between one impression cylinder and another by being gripped at one edge between fingers 11, of which a series are spaced parallel to the axis of transfer cylinder 10, and pads 12 and are fed to the second impression cylinder, or to a further transfer cylinder, by rotation of the cylinder 10. The sheet being transferred has its wet, printed face towards the cylinder 10, and is supported by retractable sheet-engaging elements 19, mounted on arcuate members 18. Each element 19 is J-shaped, and is loaded by a spring 48 so that its shorter arm 47 is held against the surface of the associated member 18 when the two arms are in line in the circumferential direction of cylinder 10. Those elements 19 which must be retracted if they are not to contact wet parts of the sheet are turned through 90 degrees in bores 42, and their shorter arms 47 enter holes 52, so that they are retracted by the springs 48. The members 18 are adjustable along the length of cylinder 10, suitably by pinions operating on racks on the cylinder 10.
Patent GB-686491-A (GB)
Title: Improvements in or relating to electric ignition devices incorporated in photographic cameras for photographic flash lamps
IPC: G03B9/70
Filed: 1950-12-01
Abstract: 686,491. Flashlamp synchronizers for photographic cameras. LEITZ GES., E. Dec. 1, 1950 [Feb. 9, 1950], No. 29433/50. Class 98 (i). A flashlamp synchronizer incorporated in a photographic camera comprises an auxiliary switch controllable from the shutter release trigger and a main switch controllable by a shutter member which moves during the release movement of the shutter, the two switches being disposed in series in the flashlamp circuit, the main switch being closed on the contacting of two levers movable by two cam surfaces, one of which is adjustable by means of the camera for setting the exposure time and the other is movable in dependence on the movement of the said shutter member during the release movement of the shutter. As shown, the exposure selecting knob of a roller blind shutter, which knob does not rotate during the exposure, carries a cam 11 against which is urged a pivoted lever 15 carrying a contact strip 18 terminating in a contact pip 20 so that the pip is positioned in accordance with the selected exposure. A second cam 13 is secured to a cam 14 (not shown) on the shaft 12 which effects release of the trailing shutter blind, and is engaged by a pivoted lever 22 carrying a contact 21 and connected to the metallic camera casing. On depressing the shutter tripping button, a leafspring on the bottom of the camera body is depressed and is followed by a rod 8 which allows a spring contact 9 to engage a pip 19 on the contact strip 18, thus closing the auxiliary switch, the contact 9 and strip 18 being insulated from the casing, whereafter the main switch 20, 21 is closed under control of the cam 13 to effect synchronization. Although the switch 20, 21 remains closed after an exposure, the flash circuit is interrupted since release of the shutter button opens the auxiliary switch 9, 19. For a pivoted blade shutter, the cam 11 would be adjusted by the usual speed-setting ring and the cam 13 would be controlled by the member moving the shutter blades.
Patent GB-383386-A (GB)
Title: Improvements relating to display stands
IPC: A47F5/01
Filed: 1931-10-26
Abstract: 383,386. Stands ; shelves. HOUGHTON, G. G. and HOUGHTON, L. S., (trading as HOUGHTON, A. B. & G. G.), 42, Main Street, Birmingham. Oct. 26, 1931, No. 29601. [Classes 52 (i) and 52 (v).] The wing members A, B of a folding display stand are formed from strip metal and are of a right-angled triangular shape formed with stepped portions 4d in which the shelf supports 5 are located and secured. The inclined sides 4c and base portions 4a of the wing members are hinged by riveted plates 8 to a vertical rod 9. The horizontal portions 5a of the shelf supports are formed with upward projections 5b to prevent forward displacement of the shelf. The opening movement of the display stand is restricted by links 7 or by extending the rear ends of the base sections 4a so that diagonal cut-aways engage at the required position. In a modification (not shown) the wing members are hinged to an intermediate panel.
Patent GB-1313713-A (GB)
Title: Cutting tools
IPC: B23B27/14
Filed: 1970-06-18
Abstract: 1313713 Cutting tools FELDMUHLE ANLAGEN - UND - PRODUKTIONS GmbH 18 June 1970 [18 June 1969] 29697/70 Heading B3T A cutting tool comprises a holder 6 having a recess therein for the reception of a pentagonal reversible cutting insert 7 which is secured by clamping means 14 in the recess. The insert has two main and two auxiliary cutting edges 8, 19 and 9, 20, respectively and the recess has bearing surfaces corresponding to portions of the insert, two of the bearing surfaces being in planes which intersect at an angle of less than 45 degrees.
Patent GB-283459-A (GB)
Title: Improvements in boots and shoes and the process of making them
IPC: A43B13/32
Filed: 1927-11-08
Abstract: 283,459. Richard, R. Nov. 8, 1927. Connecting uppers to insoles and soles.-An upper A of a boot, shoe, slipper &c. made of usual material is indented, notched, crenellated, or similarly cut away at the edges as at a<1> so as to be held uniformly between a rubber insole B and a rubber outsole C, both preferably crepe cemented together without vulcanization, stitching, nailing or similar securing means. The border a of the upper is roughened and cemented to the insole B by rubber solution and similarly cemented to the outer sole with pressure. Alternatively, the border a, suitably roughened, is caused to adhere successively to the insole Band outersole C by powerfully rubbing the marginal edges by fast rotating friction wheels until soft and tacky so as to adhere readily when pressed together with or without cement.
Patent GB-1079846-A (GB)
Title: Polyvinylpyridine-n-oxides and their production
Inventor: PIEPER GUSTAV
IPC: C08F8/06
Filed: 1966-07-04
Abstract: Poly-2-vinylpyridine-N-oxide having a molecular weight of at least 100,000 is produced by oxidizing a poly-2-vinyl-pyridine having a molecular weight of at least 400,000 with a per-compound so that the resultant poly-2-vinylpyridine-N-oxide has a molecular weight of approximately half the molecular weight of the poly-2-vinylpyridine. The reaction is preferably carried out in an organic solvent using hydrogen peroxide at a temperature of from 30 DEG  to 90 DEG  C.  The 2-vinyl-pyridine may be copolymerized with other monomers.
Patent GB-1315391-A (GB)
Title: Radiographic contrast media
IPC: A61K49/04
Filed: 1970-06-19
Abstract: 1315391 Radiographic contrast medium RIKAGAKU KENKYUSHO 19 June 1970 [20 June 1969 (2) 15 Nov 1969 13 May 1970] 30009/70 Heading A5B A radiographic contrast medium comprises (a) 10-65% by weight of a contrast agent and (b) a liquid carrier including a dispersing agent, the contrast agent comprising a soft magnetic ferrite in particles which are no greater than 0.2Á in diameter and an oxide of Ba, Bi, W, Zr, Sn, Ta, Y or a lanthanide, including La itself but excluding Pm. The ferrite may be produced by coprecipitation from an aqueous solution of salts of the metals of which it is composed or by firing a mixture of oxides or carbonates of those metals. The ferrite may be treated with acid to render it less soluble in gastric juices. Ferrites specified include: Fe, Mn, Ni, Cu, Co, Zn, Cu-Zn, Mg, Ni-Zn, Mn-Zn and Fe-Zn ferrites, Fe 3 O 4 , and γ-Fe 2 O 3 . Oxides specified include: BaO (added as BaCO 3 ), Bi 2 O 3 , Ce 2 O 3 , WO 3 , ZrO 2 , SnO 2 , Ta 2 O 5 , Y 2 O 3 , La 2 O 3 , Pr 2 O 3 , Nd 2 O 3 , Sm 2 O 3 , Eu 2 O 3 , Gd 2 O 3 , Tb 2 O 3 , Dy 2 O 3 , Ho 2 O 3  and Yb 2 O 3 . The dispersing agent may be starch, sodium alginate or polyvinyl alcohol. Other ingredients specified include water, gum tragacanth and peppermint oil.
Patent GB-1391454-A (GB)
Title: Humane cattle killers and to associated apparatus for operating such appliances
IPC: B25C1/18
Filed: 1971-06-26
Abstract: 1391454 Humane killers ACCLES & SHELVOKE LTD 20 June 1972 [26 June 1971] 30056/71 Heading AIM [Also in Division B8] In a humane killer the cartridges are fed, fired, and then ejected by means of compressed gas. The device comprises a pistol (figures 1, 2) and a cartridge feed unit (Fig 8a). The pistol has a breech block 12 manually rotatable with the barrel 9 to move a cartridge chamber 19 radially disposed therein between loading, firing, and ejecting positions. Cartridges reach the pistol through a tube 45 supplied with compressed gas, and reach the cartridge chamber through tube 47. They are fired by a pin 21 extending into the top of a chamber 23 which can be supplied with gas via a poppet valve 27 operated, against pressure suplied from the tube 47 by tube 51, by a trigger 43, a Bowden cable 42 and a sliding rod 33. The chamber 23 may contain a steel ball 25 normally held by a magnet 28, which moves to strike the pin 21. Ejection is achieved by a rod 53 which slides in a stepped bore in the breech block 12 being activated partly by contact between its protruding rounded end 56 and cam-faces 15, 16 on the pistol and partly by gas-pressure supplied through a radial capillary bore 57 when this is in register with the feed tube 47. In the cartridge feed unit cartridges fall from a hopper 61 via tube 65 to a transverse bore 75 in a plunger 73 which is reciprocable by means of a double-acting pneumatic ram 74 to discharge a cartridge at 76 to a channel 79, 80 having inclined rails 77 which catch the rim of the cartridge. On the reverse stroke of the plunger 73 a depending finger 3 moves the cartridge to an outlet 81; if the cartridge is upright it is first tipped by fingers 1, 2; thus all cartridges are supplied to outlet 81 nose downwards. A reciprocable plunger 83, controlled by a ram 84, and acting in synchronism with the plunger 73, transfers the oriented cartridges to the tube 45 and the pistol. The gas supply for tube 45 is via tube 87 and circumferential channel 86. A ram 70 operates a sliding sleeve 67 around tube 65 to prevent cartridges jamming at the base of the hopper 61. The pneumatic circuit of the device includes a four-way valve, which senses the pressure drop in the tube 45 consequent upon opening of the valve 27 by the trigger 43 and immediately activates the rams 70, 74, and 84 of the cartridge feed unit In a modfiication the trigger 43 is omitted, and the rod 33 connected to a pressure pad which triggers the pistol when it is forced against the animal's head. The cartridges may alternatively be fed by hand, or from a magazine.
Patent GB-1214897-A (GB)
Title: Fastener units which include a threaded fastener member and a lock-washer
Inventor: RAPATA GEORGE MARTIN
IPC: F16B39/24
Filed: 1968-06-25
Abstract: 1,214,897. Locking screws and nuts. ILLINOIS TOOL WORKS Inc. 25 June, 1968 [26 June, 1967], No. 30268/68. Heading F2H. A threaded fastener 12 having a clamping surface 20 is secured in a workpiece 32 by a lockwasher 14 having an annular body portion 26 from which prongs 28 extend, the prongs presenting two sets of teeth 30 the axial separation of the extremities of which is greater than the axial thickness of the body portion. As shown, the fastener 12 is a bolt and the surface 20 comprises an inner annular portion for clamping the body portion 26 and a frustoconical portion into which the teeth bite as the fastener is tightened. The frusto-conical portion may be formed on the clamping surface of the workpiece instead of, or as well as, being formed on the fastener and prevents the prongs, which are progressively twisted from their roots, from being completely flattened. The fastener may be a nut and the frusto-conical surface may have concentric or helically disposed projections. The washer is made of sheet metal and the prongs may extend in a circumferential rather than a radial direction.
Patent GB-441680-A (GB)
Title: Improvements in watch cases
IPC: G04B37/00
Filed: 1935-11-02
Abstract: 441,680. Watch cases. BRITTON, C. H., BRITTON, W., and BRITTON, H., 35, Hockley Hill, Birmingham. Nov. 2, 1935, No. 30289. Addition to 378,233. [Class 139] A two - part watch case, wherein the glass bezel 5 snaps on to a sheet - metal body 1 having an integral closed back 2, has the forward edge of the body 1 rolled, spun pressed or bent to form an inwardly-extending flange 4 and a for wardly - extending shoulder 3 which is undercut to receive the glass bezel. The fina lip 12 is cylindrical anc extends towards the back of the case ; but in a modification, Fig. 9, this lip 12 is turned inwards at 13 to form a shoulder which engages the front of the watch movement.