baber/WOPTO huggingface dataset:
Patent GB-631590-A (GB)
Title: Improved synthetic resins
IPC: C08F8/12
Filed: 1946-05-24
Abstract: Heat-hardenable resins are produced by hydrolysing interpolymers of ethylene, vinyl acetate and fumaric acid diesters of aliphatic alcohols containing not more than 4 carbon atoms, e.g. diethyl fumarate.  The interpolymers may be prepared by the method described in Specification 582,093, using as catalysts benzoyl or diethyl peroxides, tert.-butyl hydroperoxide, hexachloroethane, chloramine T or dibenzoyl hydrazine.  Hydrolysis may be carried out under reflux in a primary alcohol, e.g. methyl, ethyl, propyl, butyl and isobutyl alcohols, which may contain benzene, toluene, xylene, pyridine, dioxane or trichloroethylene; or in a mixture of water and acetic acid, dioxane, methanol or ethanol.  Alkaline conditions obtained by addition of sodium or potassium hydroxide are preferred.  Fillers, e.g. asbestos, mica, carbon, cork, chalk and wood flour, dyes and pigments may be added to form moulding compositions.  The products are soluble in hot benzene, toluene, xylene and tert.-butyl alcohol, and may be formed into films by solvent casting, hot casting or pressing.
Patent GB-351684-A (GB)
Title: Improvements in film feed mechanism particularly for soundrecording or reproducing apparatus
IPC: G03B31/02
Filed: 1930-05-22
Abstract: 351,684. Feeding webs. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Pacent Electric Co., Inc. ; 91, 7th Avenue, New York, U.S.A.) May 22, 1930, No. 15821. [Class 100 (i).] Mechanism for driving a film, such as a soundrecord film, at a constant speed, as in sound-recording apparatus, comprises two separately driven inertia members such as flywheels, having a slip coupling, and each being driven through energystoring means such as springs, one of the flywheels or the like being connected to the film-advancing device. In the construction shown, a sprocket 11 which draws a film 7 past the gate 10 of an optical sound reproducer is carried by a shaft 26 on which two flywheels 27, 28 are mounted, the flywheel 27 being keyed to the shaft and the member 28 loose thereon. A slip coupling between the flywheels is provided by an interposed oiled friction washer 44, the pressure thereon of the flywheel 28 being regulated by means of a bowed spring 48 and an adjustable nut 53. Loosely mounted on the shaft 26 are two wheels 24, 25, each being connected to one of the flywheels through spring couplings, each of which in the arrangement shown consists of a pair of intercoiled springs 30, 31, Fig. 4. These are mounted in annular recesses in the outer faces of the flywheels. A shaft 19, driven from a motordriven shaft 14, is geared to the two wheels 24, 25 through two pairs of wheels 20, 22 and 21, 23 respectively, the gear ratios being such that the wheel 25, coupled to the loose flywheel 28, is driven slightly slower than the wheel 24. Thus during normal running, the flywheel 28 exerts a slight drag on the flywheel 27 through which the film sprocket 11 is directly driven. The wheels 24, 25 are adapted to drive the fly-wheels positively when the machine is started, through pairs of opposed pins 38, 40 and 39, 41, so that excessive strain on the springs is avoided, but under normal running conditions the pins are separated, the drive being transmitted only through the springs. The film take-up reel is driven from a pulley 57 on the shaft of the wheel 23. An oil tank 58 is provided, Fig. 1, from which lubricant is supplied to the various shafts and gears through pipes 60.
Patent GB-252554-A (GB)
Title: Improvements in or relating to vacuum tube electric devices
IPC: H01J21/02
Filed: 1925-06-19
Abstract: 252,554. Dubilier Condenser Co.- (1925), (Capicotto, J. V.). June 19, 1925. Vacuum tubes.-To remove excessive negative charges from the grid without an external grid leak, an additional electron emitting source is provided within the tube in direct electrical connection with the grid. In one arrangement an auxiliary electron emitting filament 13, Fig. 1, directly connected to the grid 5, is heated by the battery 15 in a local circuit, the emission being .controlled by the rheostat 14. In another arrangement the grid 5, Fig. 2, itself is formed as an auxiliary electron emitting filament and is adjustably heated by the local battery circuit 15, 14.
Patent GB-981333-A (GB)
Title: Improvements in or relating to releasable fastening devices
Inventor: PICKARD PAUL ROBERT
IPC: E05B65/32
Filed: 1960-05-05
Abstract: 981,333. Latches WILMOT-BREEDEN Ltd. April 21, 1961 [May 5, 1960], No. 15861/60. Heading E2A. The external and internal handles of a vehicle door are locked by a single locking lever. The locking lever 28 (Fig. 4) is pivoted at 34 to a plate 26 extending at right angles to a plate 1 and has a projection 35 which, in the locked position, engages under a limb 19b of a push-button operated lever 16 pivoted at 17 to prevent the lever 16 moving a boltoperating lever 12 fixed to the same shaft 3 as the bolt (not shown). A recess 36 in the locking lever engages an end 37a of a lever 27 to prevent this lever being moved by an internal release linkage connected to it at 29, the other end 30 of this lever being adapted to engage a peg 32 on the bolt-operating lever 12. A sill control linkage 33 operates the locking lever which may also be moved by a keyoperated device mounted in a flange 40 acting through linkage 38 and lever 42. An arm 42a provides a self-cancelling arrangement for the lock by engaging the lever 12 to unlock the device if the door is closed when the device is in the locked position. A guide plate 44 ensures that the lever 16 engages the lever 12. Specification 871,895 is referred to.
Patent GB-728735-A (GB)
Title: Tool mounting means for billet extrusion presses
Inventor: NORMAN ERIC
IPC: B21C25/06
Filed: 1951-07-04
Abstract: 728,735. Extruding. LOEWY ENGINEERING CO., Ltd. June 16, 1952 [July 4, 1951], No. 15888/51. Class 83 (4). An extrusion press for the manufacture of hollow articles of the type described in Specification 707,910 is characterized in that at least one of the tools has a resilient back stop which can yield to outwardly directed displacement of the tool but which during the extrusion is subjected to an inwardly directed pressure preventing such outward displacement. A double acting radial extrusion press, fully described in Specification 707,910, is provided with hydraulically operated back-stops 25 at the end of each of the tool units each of said stops having a flange which is acted upon by pressure fluid in a chamber 30 fed through conduits 31 from the main hydraulic cylinder 10 of the press. Threaded to each of the back-stops is a nut 32 accommodated in a recess in the crosshead 26 and accessible from outside through apertures 33 in the crosshead. The protrusion of the tools into the container bore is adjusted by the nut 32 whereby the extrusion gap 22 may be set to produce a sheath or tube of any required thickness. During extrusion the pressure fluid in the chambers 30 hold the nuts 32 on their inner seats 34 but under the extrusion pressure the tools 20 and 21 undergo elastic deformations and become shorter and the gap 22 widens. This is overcome by adjusting the nuts 32 which enables the fluid pressure in the chambers 30 to advance the tool units inwardly until the correct gap is restored. After the extrusion operation when the fluid pressure in the main cylinders 10 and the chambers 30 is relieved the back-stops are free to recede when the tools expand to their original size and the extrusion gap remains substantially unchanged. A pressure-reducing device may be installed in the fluid lines leading to the chambers 30 if a reduced pressure is advantageous for operating the tool units. Pressure fluid may be supplied to the main cylinders of the press and the chambers 30 independently from a hydraulic accumulator. One of the tools may be provided with projecting pads 35 (Fig. 4a) to prevent the gap from being inadvertently closed. The invention is also applicable to straight-through extrusion presses. Specification 699,082 also is referred to.
Patent GB-649361-A (GB)
Title: Improvements in cycle pedals
IPC: B62M3/08
Filed: 1948-06-12
Abstract: 649,361. Cycle pedals. CRANFORD MANUFACTURING CO., Ltd., and CLARKE, M. L. June 12, 1948, No. 15889. [Class 136 (ii) ] In a cycle pedal in which a cross piece supporting the outer race ring of a pedal spindle bearing in a recess therein is formed integrally with a tread or tread support members 6 running longitudinally of the pedal and fixed to a cross piece on the inner side of the pedal which supports the outer race ring of a spindle bearing, recesses are formed in dish-shaped housings 5a, 5 in the cross pieces 1, 3 in which outer race rings 2, 4 are housed and a distance sleeve 10 is placed between the race rings, the pedal spindle 11 passing through the sleeve. Rubber treads 7 are fixed to the inside faces of the members 6 by clamping plates 8 and screws 9. One end of the sleeve 10 is non-circular to engage a non-circular hole in the housing 5a. The spindle 11 is formed of mild steel and inner race rings 13, 14 of hardened steel are fitted thereon. A cap 15 protects the end of the spindle 11. The junctions of the cross piece 3 and longitudinal tread members 6 form projections expanding beyond the cap 15.
Patent GB-118195-A (GB)
Title: Improvements in or relating to the Tyres of the Travelling Wheels of Agricultural Motors, Tractors and the like.
Inventor: SAMS JOHN GEORGE BARWICK
IPC: B60B15/00
Filed: 1917-11-01
Abstract: 118,195. Sams, J. G. B. Nov. 1, 1917. Tyres, non-elastic. - Wheels for agricultural vehicles and the like are fitted with tread plates 7, figs. 4 and 6, of angle or other section each having a hooked end adapted to engage between projections 6 at the inner edge of the wheel rim B and secured by a radial bolt 8. In the modification shown in Fig. 8, tread plates 10 are hinged to brackets 14 adapted to engage over lugs 15 formed on the inner periphery of the rim. The tread plates may be used on soft ground and removed when the vehicle is travelling on the road; or if the wheels are provided with tread studs &c., the tread plates may be fitted between the studs &c. to protect the road surface.
Patent GB-646553-A (GB)
Title: Improvements in and relating to bases for electric lamp devices
IPC: H01J5/54
Filed: 1948-06-14
Abstract: 646,553. Lamp-caps. BRITISH THOMSONHOUSTON CO., Ltd. June 14, 1948, No. 15958. Convention date, June 14, 1947. [Class 38 (i)] [Also in Group V] A base 10, preferably for a tubular lamp, comprises a metal shell 11 which has an inturned flange 15 defining an aperture which is closed by a moulded insulating disc 12 in the peripheral edge of which is embedded the edge of the flange 15 which is deformed during the moulding operation. The disc preferably is plastic and is moulded with locating projections 16 and an exhaust vent 35. The contacts 13, 14 may be secured to the disc during the moulding process (see Group V), or after the assembly of the shell and disc. The initial angle of the flange to the axis of the base which is critical and should be from 30 to 60 degrees to the vertical, and the flange has indentations to lock the disc in position, Figs. 4 and 5 (not shown).
Patent GB-1254090-A (GB)
Title: Rotational moulding
IPC: B29C41/06
Filed: 1970-04-03
Abstract: 1,254,090. Rotational moulding. MITSUBISHI PETROCHEMICAL CO. Ltd. 3 April, 1970 [4 April, 1969], No. 15986/70. Heading B5A. Apparatus for moulding thermoplastic resin articles comprises a plurality of moulds 4 mounted on and rotatable about axes 43a, 43b which are supported by circular supporting plates 40, 41, such that these plates may be rotatably supported by shafts 23, 24 in a rotary frame 5 rotatable about axes 7 and 8. Hence each mould is rotatable about three axes, two of which are parallel, as shown. Plate 41 is pivotable on fixed shaft 24 and plate 40 is fixed to rotatable shaft 23, shafts 23 and 24 being joined by a free joint 38. Shaft 23 is driven by means of a chain 13 acting through a shaft 11, another chain, and shaft 15. Planet gears 44a, 44b co-operating with a gear fixed on shaft 24, cause the moulds to rotate about their axes 43a, 43b. Chain 10 and sprocket 9 drive the frame 5 to rotate it on axes 7 and 8. Shafts 23 and 24 are removably supported in recesses 27, 28 by movable bearing hooks 25, 26 rotatable by motors 31, 32 to release or secure shafts 23, 24. Dollies 6 on tracks 7 are provided for removing the moulds from the frame 5. The dolly includes an elevator frame 59 having bearing rods 70 on which the shafts 23, 24 may be supported. A motor 54 drives rolls 55a, 55b, 56a, 56b which wind up cables 58a, 58b, 57a, 57b to lower or raise the frame 59 to a position at which the moulds can be transferred between the dolly 6 and frame 5. Bearing rolls 62a, 62b, 63a, 63b are driven by a motor 64 to interact with plates 40, 41 and thus maintain rotation of the moulds about shafts 23, 24 after removal of the moulds from the frame 5. Heating elements 45 provide jet flames through apertures 46, to heat the rotating moulds from a fuel supply pipe entering through rotary shaft 8. In another embodiment (Fig. 6, not shown), the support (2) is provided upright on a dolly (22) instead of the floor, and the apparatus can be located in a heating chamber. The moulds may be cooled by a cooling medium applied to the rotating moulds. Materials which may be moulded include powders or granules of polyolefins such as polyethylene or polypropylene.
Patent GB-160374-A (GB)
Abstract: 160,374. Laupitz, R. April 17, 1920. Type-wheel actions.-In a key-set, independently operated adding and subtracting machine, such as described in Specification 149,848, [Class 106 (i), Calculating &c.], the type-sectors 18 are set by the release of spring-controlled bars 16 limited in their movement by stepped cam-plates 7 positioned differentially by the depression of the keys 1. The bars are normally restrained by a cross-piece 14 engaging in a slotted plate 15 secured to each bar. The cross-piece is carried by an arm 12 pivoted at 13 and reciprocated at each operation of the machine by connection at 11 with an eccentric 10 on the operating shaft 9. To print totals, the handle 37 is moved to the right thus through a projection 57, placing the stepped plates 6 controlling the totalizer, and the plates 7 out of range of their co-operating parts and removing a bar 41 from engagement with a lever 43. This lever carries a stepped plate 44 for determining the movement of the corresponding bar 16 through the medium of a tooth 52 on a pivoted arm 35 connected to the bar at 57. The lever 43 is engaged by a spring-influenced lever 47 adapted to be set by a stepped cam 50 on the corresponding totalizer wheel 51. Items may be printed but not computed by placing the operation-controlling handle 56 in mid-position so as to cause the masking of both pawls which drive the totalizer in one or other direction according to the nature of the computation. Plat arrangentents. - The impression roller 26 is carried by a frame 24 rocked at each operation of the machine by links 23, 30, bell-crank 22, and lever 32 lifted by a roller 34 carried by the eccentric 10.
Patent GB-420451-A (GB)
Title: Improvements relating to markers for books and bookkeeping and like sheets
IPC: B42D9/00
Filed: 1933-06-02
Abstract: 420,451. Bookmarkers ; labels. CASSIN, P., 19, Eastcheap, London. June 2, 1933, No. 16046. [Classes 16 and 73] A card or paper or like sheet constituting a marker is provided with one or more tabs of self-adhesive tape detachably adhesively secured along a border of the marker whereby the latter can be detachably adhesively secured to a sheet of a book, or to a book-keeping or like sheet. As shown, the printed marker a has a length of self-adhesive tape b detachably adhesively secured along and over lapping the upper border thereof, the overlapping or free portion of the tape detachably adhering to an account sheet d. The tape b may be attached to the marker a by stitching with wire, in addition to the adhesive means. Before the attachment of the marker to the account sheet, the free margin of the tape is protected by a strip of waxed or impregnated paper. In a modification, the tape is applied to the marker over elongated or other apertures whereby the adhesive surface is exposed through the apertures, and can be pressed therethrough into contact with the account sheet.
Patent GB-1045372-A (GB)
Title: Electrical resistor
Inventor: OSTRANDER WILLIAM JOSEPH
IPC: H01C7/00
Filed: 1965-04-14
Abstract: <PICT:1045372/C6-C7/1> A resistance film composed of a mixture of one or more silicon oxides with chromium is formed on a cylindrical glass or ceramic substrate 12, or on one or both faces of a flat substrate, by evaporation so that 42%-50% (by volume) of the film is of chromium and 50%-58% of the film is of silicon oxide.  The chromium and the oxide(s) are evaporated simultaneously from tantalum members 28, 30 by heating them to the appropriate temperatures with the pressure in container 22 reduced to a suitable level. The type of silicon oxide deposited on 12 may be controlled by controlling the pressure in 22 or by leaking controlled amounts of air or oxygen into it.  The ratio of chromium to oxide is determined by suitable positioning of substrate 12 in accordance with a given formulae. The resistance of the film may be controlled by measuring it during formation and stopping evaporation when the desired value is reached.
Patent GB-118734-A (GB)
Title: Improvements in Elevated Railways, Tramways and the like.
Inventor: ROGERS STEWART ALEXANDER
IPC: E01B25/18
Filed: 1917-11-06
Abstract: 118,734. Rogers, S. A. Nov. 6, 1917. Addition to 115,179. Rope railways.-Ropeways as described in the parent Specification have the tension weights arranged at the bottom of the spans, the supports being so constructed that the rope a rests in guides s formed as grooves of less depth and of greater width than the rope. The bearing-points are arranged apart as far as possible on the support b, and the space between the guides s is provided with a bridge-rail r. The rope passes over pulleys o below the guides s, and the tension weight is hung from the jockey-pulley n.
Patent GB-226450-A (GB)
Title: An improved clothes drier and airer
IPC: D06F57/08
Filed: 1924-07-07
Abstract: 226,450. Proctor, J. H. July 7, 1924. Clothes - airers. - A folding clothesairer adapted to be placed over a source of heat comprises end frames E hinged to an intermediate frame having rods A for supporting the clothes, the end frames being adapted to be folded transversely of the intermediate frame when the airer is not in use. The airer is provided with locking-hooks G, and when in use may be suspended by one of the eyes K.
Patent GB-277139-A (GB)
Title: Improvements in and relating to brakes of mechanically propelled vehicles
IPC: B60T11/04
Filed: 1926-06-29
Abstract: 277,139. Keathery, W., and Keathery, J. R. June 29, 1926. No Patent granted (Sealing fee not paid). Brakes, arrangement and disposition of. - In brake actuating gear for vehicles having four or more wheel brakes, a lever f connected to the brake-operating rod or cable e<1>, is actuated, independently, either by a cam a operated by the foot pedal through a rod d, or by a cam G operated by the hand brake lever n or, simultaneously, by both. The hand brake-lever n is rigidly attached to a spindle K2 on which is rigidly attached the cam G, the cam a being loosely mounted on the spindle. The spindle K2 is mounted in bearings in a bracket A attached to the vehicle and the lever f is mounted on a spindle PI carried by the same bracket. The rod e is adjustable in length and is connected to a cross-shaft N, Fig. 9, to which the front and rear brakes are connected through lever arms.
Patent GB-922852-A (GB)
Title: Improvements in or relating to hopper feed mechanism for textile carding machines
Inventor: BROOKE ROBERT BENJAMIN
IPC: D01G23/00
Filed: 1959-02-07
Abstract: 922,852. Hopper feeding apparatus. REDSHAW & CO. Ltd. May 9, 1960 [Feb. 7, 1959], No. 16318/60. Divided out of 922,851. Class 120 (1). A travelling sheet delivering fibres to a weigh pan in hopper feeding apparatus is stripped by combs oscillating out of phase with each other. Two combs are preferred, fixed on shafts having a common axis and each driven by conventional operating mechanism. However many combs are used they should be out of phase by 360 degrees divided by the number of combs. The comb shafts may be carried on brackets 18, 20 permitting of vertical and lateral movements to provide adjustment relative to a feed sheet 12.
Patent GB-889252-A (GB)
Title: Improvements in or relating to electrographite electrode joints
IPC: H05B7/14
Filed: 1958-05-21
Abstract: Two electrographite electrodes are connected together by means of an electrographite screwthreaded nipple having a coefficient of thermal expansion in the direction perpendicular to the axis of the electrodes equal to or less than the coefficient of thermal expansion, in said direction, of the electrodes.  The nipple, which may be pitch-impregnated, may be shaped by methods comprising die pressing or shaking and tamping, or may be cast.
Patent GB-567482-A (GB)
Title: Improvements relating to operating mechanism for electric switches
IPC: H01H13/18
Filed: 1943-10-06
Abstract: 567,482. Retractive switches. MICRO SWITCH CORPORATION. Oct. 6, 1943, No. 16386. Convention date, Dec. 16, 1942. [Class 38 (v)] An operating mechanism for a retractive switch comprises a pivoted, spring-returned operating lever having means for engaging when depressed, the operating member of the retractive switch, the said means being disengageable from the operating member to permit return of the latter while the lever is still depressed. The lever may be actuated by the throttle-lever of an aircraft-engine in its closed position and give a warning that parts of the craft are not ready for a landing operation. For a four-engine aircraft, four such switches 8 ... 12, each of the type described in Specification 419,917, are assembled on a rod 21 between ears 19 of brackets on a common frame 15, and between each switch and the ears 19 are supporting members 29, 31 for the operating mechanism. A lever 34 adapted to be depressed by the associated throttle-lever, Fig. 1 (not shown), has a pair of ears 36 pivoted on a rivet 33 interconnecting the members 29, 31, and is held in the raised position, with flanges 45 thereon engaging stops 46, by a spring 40. A spring-plunger 48, mounted with freedom to tilt in an aperture in the )ever 34, lies over the press-button 28 so that, on depression of lever 34, the button is in turn depressed to operate the switch, the plunger-arrangement being such as to allow over-travel of lever 34 without damage to the switch. The plunger normally moves within a reduced part 57 of a transverse rod 53, which can be slid axially to tilt the plunger, the rods of all the switches being in abutting relation and maintained by spring 64 in the position shown. By pushing handle 62 inwards, the plunger of such switches as have been closed are moved clear of the buttons, which instantly restore, the handle 62 being then released in readiness for the release of any other button that may be depressed.
Patent GB-184778-A (GB)
Title: Improved process for purifying acetylene
IPC: C07C7/148
Filed: 1922-06-13
Abstract: To the alkali hypochlorite solution used for removing phosphoretted and sulphuretted hydrogen from acetylene, is added an alkali bicarbonate, which prevents the solution from containing any considerable concentration in free hypochlorous acid.  When exhausted, the purifying-solution is regenerated electrolytically preferably with the use of graphite anodes and an addition of potassium chromate.  The Specification, as open to inspection, under Sect. 91 (3) (a) refers to the addition of salts of feeble acids to the purifying solution.  This subject-matter does not appear in the Specification as accepted.