baber/WOPTO huggingface dataset:
Patent GB-755111-A (GB)
Title: Improvements in or relating to side delivery rakes
IPC: A01D76/00
Filed: 1954-01-26
Abstract: 755,111. Side-delivery rakes. McCALL, F., and McCALL, L. Jan. 26, 1954, No. 2330/54. Class 6 (3). A side-delivery rake for gathering hay in loose rolls comprises tines 40 which have a compound curvature lying generally on a spiral and extend in echelon with respect to the forward movement of the rake, the lower extremity of each tine making an acute angle with the plane of the ground. As shown, each tine is welded to a supporting bar 43 which is pivoted on a crosssupport 50. The cross-supports 50 are pivoted on supporting members 16, 17 which are pivoted to frame members 12, 23 which are connected by an extensible connection 25 which can be adjusted to vary the spacing of the tines and vary the angle of the members 16, 17 with respect to the frame members 12, 23. The position of each supporting bar 43 is adjusted by means of a stud 46 and a spring 55 is provided so that each bar may yield in meeting an obstruction. The rake is connected to a tractor by a hitch 11 and is provided with ground wheels 14, 30, the wheel 30 being rotatably mounted in a support 32 which is rotatable about a pivot 35. In a modification, the tine 40 and supporting bar 43 are connected together and provided with a removable wearing tip.
Patent GB-363189-A (GB)
Title: Process for the production of metallic barium in closed vessels
IPC: H04R7/12
Filed: 1931-01-26
Abstract: Barium is produced in a closed receptacle such as an electric discharge tube, electric incandescent lamp, &c., by the reduction of barium oxide by means of sodium vapour.  The sodium may be introduced electrolytically through a glass wall of the receptacle or of a vessel connected therewith.
Patent GB-1018848-A (GB)
Title: A method of attaching electrodes or electrical leads to semiconductor elements
IPC: H03H3/02
Filed: 1963-01-21
Abstract: 1,018,848. Semi-conductor devices. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Jan. 21, 1963 [Jan. 22, 1962], No. 2562/63. Heading H1K. A semi-conductor device, to which a lead has been connected by means of ultrasonic welding, is subjected to heat treatment at a temperature below the melting and eutectic points of the lead and the semi-conductor. As described, an aluminium wire is ultrasonically welded to a p or n type silicon wafer and the assembly is then heated in a vacuum or inert atmosphere to a temperature of 400‹ C. for ten minutes. Further electrodes of nickel may be deposited on the wafer. The device may be a diode, transistor, thermistor, Hall generator or a piezo-resistance element.
Patent GB-430834-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23G7/02
Filed: 1934-01-25
Abstract: 430,834. Furnace grates. THOMPSON WATER TUBE BOILERS, Ltd., J., Etting- shall Engineering Works, Wolverhampton.- (Plummer, G. A. ; 4, Fairlie Place, Calcutta, India) Jan. 25, 1934, No. 2604. [Class 51 (i)] In a furnace, more particularly for burning bagasse, rice husks, and other fibrous material, having a steeply sloping grate and at the lower end thereof means for supporting the fuel bed and the accumulated ash and slag, the supporting means is adapted to be withdrawn from the rear plane of the fuel bed thus allowing the discharge of ash and slag whilst still supporting the fuel bed proper so that it maintains its normal contour. The furnace has a stepped grate 11 inclined at an angle of about 52‹ and at the bottom the fuel and ash are supported on an ash valve 21 comprising a rear wall 29 and a number of webs such as 25 on which are mounted curved firebars 23. The valve is pivoted at the centre of curvature of the firebars by means of a fork at the lower end of the wall 29 which fork embraces and is pinned to a rocking shaft 33. In one position, as shown, the firebars support the fuel and ash. By means of a handle 37 the valve may be rotated so that the fuel is supported on the rear ends of the firebars 23 but the ash is allowed to fall into the ashpit 34. In both positions of the valve the wall 29 prevents the passage of air between the ashpit 34 and the space 15 beneath the grate 11.
Patent GB-873614-A (GB)
Title: Improvements in or relating to the production of substituted cyclohexanone peroxides
Inventor: MANLY THOMAS DAVID
IPC: C07C409/22
Filed: 1957-01-24
Abstract: Peroxides of methyl and dimethyl cyclohexanones are prepared by reacting an aqueous solution of hydrogen peroxide with methyl or dimethyl cyclohexanones at a temperature such that substantial decomposition of the peroxides is prevented and in the presence or absence of up to 10% by weight of an organic or inorganic acid, based on the total weight of the reactants.  The reaction preferably takes place below 35 DEG C., using at least 60% w/w concentration of hydrogen peroxide and the product may be worked up by testing with an alkali metal carbonate solution to neutralize the acid, if used, and the excess peroxide and the organic layer separated.  The products, which are liquid at room temperature, may be used to initiate polymerization of unsaturated monomers.  In the Examples (1) methyl cyclohexanone is treated below 30 DEG C. with 85% w/w hydrogen peroxide containing acetic acid, after 24 hours the product is worked up using sodium carbonate solution; (2) as (1) using no catalyst, two phases appear after five days; (3) as (1) using sulphuric acid as catalyst; (4) as (3) using dimethyl cyclohexanone; (5) as (1) using 35% w/w hydrogen peroxide.  The Provisional Specification mentions mono- and di-chloro-cyclohexanone as a possible reactant.
Patent GB-1398814-A (GB)
Title: Device for holding a spindle for drawing-off a yarn
IPC: B65H49/22
Filed: 1973-01-18
Abstract: 1398814 Creels A OTT 18 Jan 1973 [18 Jan 1972] 2730/73 Heading D1J A yarn package 6, wound on a spool 2, hangs downwardly from a suspension 10 with a universal degree of motion that permits the package to swing freely during unwinding of the yarn from the package, the suspension means 10 being held by damping means 14 such as a block of high-hysterisic material. As shown the spindle 5 of the spool 2 has an eye 9 that hangs on a hook 10. The eye 9 may be in a bushing 13 of synthetic material, for example of polyamide. The spool 2 is carried by bearings 3, 4 mounted on the spindle 5.
Patent GB-1262304-A (GB)
Title: Process for the production of copies of a standardized density
Inventor: HELLMIG EHRHARD
IPC: G03C1/46
Filed: 1969-01-17
Abstract: 1,262,304. Photographic printing processes. AGFA-GEVAERT A. G. Jan.17, 1969 [Jan.20, 1968], No.2752/69. Heading G2C. A photographic printing process to produce copies of standardized densities having substantially uniform minimum and maximum densities from originals which have different ranges of density from the light to the shadow portions of the image but substantially equal density in the shadow portion uses a copying material comprising at least two silver halide emulsion layers of different spectral sensitivities and gammas, the sensitivities of the emulsions and/or the relative intensities of the copying lights L 1 , L 2  of different colour are adjusted so that for substantially equal exposure times with L 1 , L 2  the resulting characteristic curves intersect at a particular density value which corresponds to the desired density value which is to be obtained in the shadow portions of the copy. In a specific example, material of the type disclosed in Specification 494, 088, is exposed to light through a blue filter and through a yellow filter, the correct balance being obtained by exposure of strips of the material to one colour and processing the strips under identical conditions; further strips being exposed until the desired density value is obtained in each shadow portion.
Patent GB-228566-A (GB)
IPC: B61K7/00
Filed: 1925-01-30
Abstract: 228,566. Schmidt, J. Jan. 30, 1924, [Convention date]. Skid.-Relates to skid or stop blocks for railway vehicles of the kind adapted to be placed on the rails and automatically thrown off the rail by spring means when relieved of the pressure of the wheel and consists in the provision of means whereby the block may be thrown off on to the outside of the truck whether the block is placed upon the one or the other of the pair of rails. The block comprises the usual hinged plate 2 against which abuts a spring 4 and which after being depressed by the pressure of the vehicle wheel is held by a catch on the hinged handle of the block. The spring 4 abuts also against a socket 6 which when the block is relieved of the pressure of the wheel is forced through an aperture in the sole 1 of the block which is thereby caused to fall off the rail. The socket is provided with an eccentrically arranged projection 5 and by turning the socket this projection can be so disposed as to bias the fall of the block to the desired side of the rail.
Patent GB-211672-A (GB)
Title: Improvements in shifting spanners or wrenches
IPC: B25B13/16
Filed: 1923-01-31
Abstract: 211,672. Shepherd, T. Jan. 31, 1923. Sliding-jaw wrenches.-A quick - adjustment wrench comprises a hand-grip sleeve 3 rotatable on the shank of the fixed jaw and having external slow-pitch buttress or square threads 6 engaged by a releasable pawl 12 carried by the sliding jaw 7. Rapid adjustment of the jaw 7 is effected by releasing the pawl 12, and fine adjustment by rotating the sleeve 3. The sleeve 3 is retained on the lower circular or part-circular portion of the shank of the jaw 1 by a thrust screw 5 and washer 4, a spring washer preferably being inserted between the upper end of the sleeve 3 and the non-circular part of the shank. The wrench may be used as a hand vice or pipe wrench and the faces of the jaws may be roughened or toothed.
Patent GB-129934-A (GB)
Title: Improvements in or relating to Electric Collectors for Maintaining Contact between Relatively Movable Conductors.
Inventor: IONIDES ALEXANDER GEORGE
IPC: H01R39/00
Filed: 1919-02-06
Abstract: 129,934. Ionides, A. G. Feb. 6, 1919. Collectors.-Means for maintaining electric contact with the conductors of a cable while it is being wound in or paid out by a winch comprises two annular brushes K, L which are mounted on a rotating part G' of the winch and are connected with the conductors of the cable H which passes round the drum and engage a contact plate D and a contact ring E or two rings mounted on the fixed spindle A of the winch and connected with fixed conductors F. The brushes are formed from disks having a central hole from which radial cuts are made forming a series of spring tongues which are bent outwardly to engage with the plate and ring &c. The disks are held in position in the cup-shaped recess in the plate G<1> which is secured to the drum, by superimposed rings of insulating material J, J<2>, J<1>, held together by a screwed cap M. The fixed contacts D, E are mounted on an insulating plug-piece B fitting, so as to be capable of axial movement only, within a sleeve A<1> secured to the fixed spindle of the winch, and the plug piece is pressed into engagement with the brushes by a spring C. The brushes may be slightly eccentric to the rings and the plate so as to distribute the wear. The device may be used for a multi-core cable by providing additional rings and brushes.
Patent GB-276232-A (GB)
Title: Improvements in starting gear for internal combustion engines
IPC: F02N1/00
Filed: 1927-02-02
Abstract: 276,232. Fitzpatrick, H. D., (Import Maatschappij). Feb. 2, 1927. Turning-gear.-A starting-handle 2 for internal-combustion engines is disengaged from the engine shaft 16, if the engine turns backwards at starting, by means of a, loose sleeve 6 having ratchet teeth 5 engaged by a pawl 3 on the handle 2. The sleeve has cam projections 7 engaging corresponding notches 10 in a fixed sleeve 11 surrounding the shaft 1 of the starting-handle, and the shaft 1 engages the engine shaft 16 by means of clutch dogs 14, 15. The sleeve 11 is secured to a fixed member by a nut 11<a>. When starting, the pawl 3 slips over the ratchet 5; if the engine shaft turns backwards, the sleeve 6 is turned by the pawl and ratchet and is moved axially, to disengage the starting- handle, by the inclined faces of the projections 7 and notches 10. Fig. 2 shows a modification of the shape of the projections 7 and notches 10, the edges of which are rounded; the sleeve 11 in this form is bolted to a fixed member. Reference has been directed by the Comptroller to Specifications 24527/07, [Class 122. Steam engines], 162,179, and 206,893.
Patent GB-432476-A (GB)
Title: Rotary drum furnace
IPC: F27B7/00
Filed: 1934-06-27
Abstract: 432,476. Rotary furnaces. METALLGES. AKT.-GES., 45, Bockenheimer Anlage, Frankfort-on-Main, Germany. June 27, 1934, No. 3114/35. Convention date, May 19, 1934. Divided out of 432,465. [Class 51 (ii)] The gas offtake head of a rotary furnace comprises a central valve-controlled passage 30, by which the gases issue directly from the end of the furnace, and an annular channel 34 connected by piping 26 with other offtakes along the length of the furnace, and preferably situated in the third sixth of the length starting from the upper end. The channel 34 surrounds a sleeve 30 rotating with the furnace, and into this projects an inner sleeve 52 carried by the end hood 31 and having its outer end controlled by a valve 51. The joint between the fixed and movable parts of the furnace may be cooled by the circulation of water through the annular channel 48. The hood 31 is mounted in a sand or water seal 44 which allows the furnace to expand on heating. The head arrangements are more particularly adapted for use with furnace constructions described in Specification 432,465.
Patent GB-596397-A (GB)
Title: Improvements in pipe couplings and the like
IPC: F16L19/08
Filed: 1945-02-08
Abstract: 596,397. Clamps. SEAMARK. L. M. C. Feb. 8, 1945, No. 3201. [Class 44] [Also in Groups XXVI and XXVIII] A contractible metal ring a, Figs. 6 and 7, for use in pipe couplings, with an internal cylindrical face which may be roughened or serrated and an external conical face, has a series of radial slots a<2> and a<3> formed alternately on its upper and lower surface so as to produce a zig-zag form, Fig. 7a. A pipe coupling, Fig. 1, embodying two of said rings has two clamping rings b with conical holes to fit the rings a, packing rings d and d<1> and an abutment sleeve e with upwardly and outward sloping ends and concave inner surfaces terminating at an internal flange e<2> on which the pipe ends rest. When the bolts b<1> are tightened the packing d is first compressed and on further tightening the rings a contract and grip the pipe ends. In a modification the clamping rings may have extensions, which are externally threaded, engaging a central and common internally threaded sleeve. In a further modification the clamping rings have an equal number of spaced segments extending inwardly so that when the coupling is tightened they intermesh and form a cylindrical housing for the joint. The contractible rings for the latter coupling may have a four or five-sided transverse section. A further modification for joining pipes of different thickness with the same inside diameter has a packing and contractible ring mounted on the thin pipe whose end butts against the thicker pipe end which slopes upwardly and outward and the joint is held by a clamping sleeve which is conical at one end to fit the contractible ring and thread internally at the other to engage an external thread on the larger pipe.
Patent GB-1218073-A (GB)
Title: Recording and/or playback apparatus
IPC: G11B15/61
Filed: 1968-01-22
Abstract: 1,218,073. Helical wrap tape recorders. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 Jan., 1968 [25 Jan., 1967], No. 3248/68. Heading G5R. The drum 2 of a helical wrap tape recorder has guides 7 for the lower edge of the tape which extend to at least the inner surface 20 of a wall 14 encircling the majority of the tape-contacting part of the drum. The member 14 may be integral with a cover-plate 3 above the chassis 1 (Fig. 1, not shown) and may be tapered 26 to assist threading. Guides 24 for the upper tape edge have inclined upper surfaces 25. The member 14 shown is semi-cylindrical to accommodate a 180 degrees wrap tape, but may subtend a greater angle and have an opening (22, Fig. 2, not shown) for a 360 degrees wrap tape. The drum contains a rotary video head, while fixed heads (10, 11) are provided for erasing and recording respectively audio and sync. signals.
Patent GB-823842-A (GB)
Title: Improvements relating to electrical signal generating apparatus employing a pick-up tube having a photo-electrically conductive target
Inventor: LUBSZYNSKI HANS GERHARD
IPC: H01J29/45
Filed: 1955-02-04
Abstract: 823,842. Television pick-up tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 6, 1956 [Feb. 4, 1955], No. 3289/55. Class 39(1). To reduce capacitive lag in a pick up tube comprising a photoconductive target scanned by a low velocity beam, the beam is made to strike the target during the line return intervals at such a high velocity that the secondary emission ratio is greater than unity, preferably by applying positive pulses to the target back plate 3 during the line return intervals and the frame scanning waveform is stepped by combining it with negative pulses so that the high velocity electrons strike the target 10-20 lines behind the low velocity scanning electrons so that the secondaries produced by the high velocity primaries are redistributed over about 20 lines of the surface of the target by negatively biased reflecting grid 8 so as not to affect the area of the target about to be scanned. Positive pulses of 200-400 volts are applied to to the back plate during the line return intervals, so that the secondary electrons are reflected by grid 8 and redistribute over target 2, so bringing it to equilibrium (cathode) potential. The beam density during the line return intervals is about twenty times that during the line scanning intervals. The target can be treated to increase its secondary emissivity, e.g. by coating it with magnesium oxide. Grid 8 is connected to the wall anode 11 and the target comprises a transparent photoconductive layer supported on a transparent conductive film 3 (signal plate) coated on the end window. A rectangular pulse generator 12 such as a multivibrator supplies positive pulses to the signal plate 3 with polarity reversing amplifier 13 and capacitor 14 and also produces the negative steps 20 in the frame scan waveform generated by 19. Head amplifier 21 is protected from damage when pulses are applied to the signal plate by means of a gate controlled by pulse generator 12. In an alternative negative pulses are applied to the gun and the signal plate potential is left constant, during the line return intervals. In this case a negative pulse is applied to the mesh 8 of magnitude sufficient to obtain the desired equilibrium (cathode) potential on the target during the line return intervals.
Patent GB-554577-A (GB)
Title: Improvements in anti-slip attachments for the wheels of tractors
IPC: B60C27/06
Filed: 1942-03-13
Abstract: 554,577. Wheel tyres. KELMAN, J. March 13. 1942, No. 3327. [Class 144 (ii)] A tyre chain for tractor wheels has plain links 10 in the side chains, which are tensioned by turnbuckles 13, and twisted links 12 in the tread portions of the cross chains, connected by plain links with the side chains.
Patent GB-633245-A (GB)
Title: Improvements relating to pre-stressed concrete
IPC: B28B23/04
Filed: 1948-02-05
Abstract: 633,245. Ground anchors. STENT, D. H. Feb. 5, 1948, No. 3399. [Class 45] [Also in Group X] A wire or rod reinforcement d for concrete is threaded through a divergent hole b in a plate a, positioned at each end of a mould f, the wire being threaded back through the hole to form a loop in which a length of bendable wire g is inserted. A number, e.g., four, holes b may be provided in each plate a to hold four wires, and the plates are drawn towards one or both ends of the mould f by a bolt or bolts e screwing into the hole c, the looped ends 'of the wires being thus drawn and wedged into the holes b. The anchor plates may be external to the mould.
Patent GB-448236-A (GB)
Title: Improvements in weft-winding machines
IPC: B65H54/14
Filed: 1936-02-05
Abstract: 448,236. Winding yarns. TAYLOR, H., and LEIGH, J. N., Victoria Mills, Horwich, Lancashire. Feb. 5, 1936, No. 3425. [Class 120 (ii)] In a machine for winding weft yarns on to pirns or the like of the kind in which means carried by the traverse bar encounters an abutment when the required length of yarn has been wound and moves the abutment to actuate a stop motion for the machine, a number of adjustable abutments are provided each adapted to actuate the stop motion after a predetermined length of yarn has been wound and to be moved out of the actuating position to enable the winding to proceed after a different yarn has been pieced to the wound yarn. As shown, the stops 82 are pivoted on the longitudinally movable stop motion rod 6 and are spaced apart by distance pieces 9, the width of which determines the lengths of the different yarns wound. The machine is stopped when the arm 7 of the bracket 5 carrying the traverse wheel 4 on the traverse bar 3, encounters a stop 82 and moves the bar 6, the stop being then turned down out of the way of the arm 7 and the machine restarted after the different yarn has been pieced to the end of that on the pirn. Each abutment is supported in its operative position by an arm 83 which rests on a rod 10 and may also be supported in its inoperative position by resting on a rod 11.
Patent GB-234538-A (GB)
Title: An improved brick for use in building furnaces, coke-ovens, or the like
IPC: C04B38/06
Filed: 1925-02-26
Abstract: 234,538. Allen, H. V. Feb. 26, 1925. Porous bricks &c.- Insulation bricks, blocks &c. for use in smelting-furnaces, coke ovens &c. are made from a composition consisting of 80- 87¢ per cent by volume of coke, breeze, or dust and 20-12¢ per cent of a refractory clay such as fire, ball, or china clay, or marl, which is rendered plastic with water, moulded, and burnt in the usual way. In burning, the coke is consumed, leaving a porous article.
Patent GB-247219-A (GB)
Title: Process for the production of phosphorus
IPC: C01B25/04
Filed: 1926-02-06
Abstract: 247.219. I. G. Farbenindustrie Akt.- Ges., (Assignees of Chemische Fabrik Griesheim-Elekctron). Feb. 6, 1925, [Convention date ]. Phosphorus. - Hot furnace gases containing phosphorus produced for example by the reduction of phosphorites by means of carbon and sand at high temperature are passed through a filter chamber maintained at a temperature above the dew-point of phosphorus. The filter chamber may be heated externally by means of hot waste gases or by turning the. carbon monoxide remaining in the gas-stream after removal of the phosphorus or internally by resistance heating. The substances with which the furnace is charged may be used as filtering material either separately or in admixture, and may serve as the resistance either dry or in a moist condition. In this way the charge may be dried before it is placed in the furnace by using it in the filterchamber. The dust may be removed from the filter material by sieving and after being agglomerated may be added to the furnace charge. An electrical precipitating plant may be used in addition to the filter-chamber.
Patent GB-1375403-A (GB)
IPC: E06B7/23
Filed: 1971-01-29
Abstract: 1375403 Draught excluder BERNARD DIXON & PARTNERS Ltd 28 Jan 1972 [29 Jan 1971 17 Sept 1971] 3506/71 and 43577/71 Heading EIJ A round, resilient member 15 is retained in a channel sectioned member 10 having inturned lips 14 with the member 15 contacting the walls and base of the channel so as to define a space 16 on each side of the line of contact with the base. The device may be attached to the door sides, the door frame, in a channel in the floor or it may act as a door stop, Fig. 6 (not shown). The member 15 may be tubular or solid and may be of neoprene.