baber/WOPTO huggingface dataset:
Patent GB-216631-A (GB)
Title: Improvements in and relating to hydraulic power transmission mechanism
IPC: F16H39/08
Filed: 1923-04-06
Abstract: 216,631. Pratt, C, R. April 6, 1923. Cam - actuated pumps; stroke, varying; revolving-cylinder pumps.-In apparatus for the hydraulic transmission of power of the type comprising pump and motor units, the position of the tilting head of the pump is regulated by a hand or foot actuated lever and by automatic means actuated by the pressure generated in the apparatus. Further, the valve plates are of hardened steel, the motor shafts are inserted into their supports while hot, and means are provided for diminishing and replenishing leakage. The apparatus shown in Fig. 1 comprises motors 3, 4 in circuit' with a pump having a tilting head 50, the position of which is adjusted by a tubular rod 127, spring 137 and lever 56, and by rods 200 cooperating with plungers 128 acted on by the hydra.ulic pressure in ducts 130, which are connected, by passages fitted with non-return valves, with the pressure and suction chambers of the gear. The pump shaft 1 is urged endwise to hold the face plate 15 against the valve plate 16 by a spring 17 and hydraulic pressure on a disc 20. Leakage is diminished by helical grooves 14, 35 and the liquid collecting in the pocket 36 flows through a central hole in the shaft 1, and serves to lubricate the bearings 37, 8, any excess returning to the interior of the casing 5 through radial ducts 41 governed by a spring-pressed plug 38. The face plates 45 of the motors are kept in contact with their valve plates 46 by springs 76 and hydraulic reaction, and in both pump and motors rings 47 fit annular grooves in the face and valve plates to reduce leakage. Liquid leaking to the interior of the gear casing is returned to the circuit through a non-return valve, this being aided by the provisions of means for maintaining a super-atmospheric pressure in the casing. The casing has a valve through which air may be pumped in at the start, and a relief valve, while an automatic air-inlet valve prevents the possibility of a vacuum. A manually-operated by-pass valve 92, 93, Fig. 4, is provided to allow the pressure and suction chambers of the gear to be connected, part of the liquid then passing through a duct 97 into the casing, and serving to vent air from the pressure system and cool the liquid.
Patent GB-513653-A (GB)
Title: Method of and means for the observation and location of moving targets, more especially aircraft
IPC: F41G5/00
Filed: 1938-03-28
Abstract: 513,653. Sighting-device. CONTRAVES AKT.- GES. March 28, 1938, No. 9487. Convention date, March 28, 1937. [Class 97 (i)] Apparatus for continuous observation of moving targets is provided with sighting instruments having coarse and fine adjustments comprising means for moving the sighting means of the instrument to effect the coarse adjustment and means for deviating the ray path within the instrument to effect the fine adjustment. The movements may be carried out by two observers and may be transmitted by remote control means to other apparatus. In the form shown, the coarse adjustment is made by means of the ocular 2 and comprises a constant speed motor 10 driving friction discs 7, 24 which drive friction rollers 8, 20, the positions of which are controlled by hand-wheels 11, 23. The roller 8 moves the part 4 of the instrument through gearing 9 and the roller 20, moves the part 5 through gearing 12, the systems of gearing being coupled through a differential 19. Light from the object passes by the mirrors 32, 31 in the parts 5, 4 and a fixed mirror 30 to a half-silvered mirror reflecting into the ocular 2. The direct rays pass through the half-silvered mirror and through optical wedges 33, 34 to an ocular 3. The fine adjustment is effected by rotating the wedges through gearing from the hand-wheels 35, 36. The adjustments may be communicated to two instruments A, G for transmission by remote control means to other apparatus. The adjustments may also act directly on other apparatus, e.g.,. a telescope.
Patent GB-453901-A (GB)
Title: Improvements in or relating to steel collapsible props as used in mines or any excavation requiring support
IPC: E21D15/28
Filed: 1935-03-27
Abstract: 453,901. Mine props. PARRY, E., 69, Markham Road, New Edlington, Doncaster, and MORTON, G., Lyndhurst, Station Road, Conisbro', near Rotherham. March 27, 1935, No. 9512. [Class 20 (ii)] A collapsable mine prop consists of a main body portion a and an end cap or casing b slidably mounted thereon, the said casing carrying a pivoted cam lever g and a wedging device, such as wedges n and o, which engage with the opposite sides of the web j of the portion a and exert a gripping and locking force when the prop is under load. The cam lever is pivoted at d to the casing and is provided with a device for locking it in its set position. This device may consist of a member m slidably and rotatably on an extension k of the cam and adapted to engage behind the lower wall of an opening c in the casing. The prop portion a is of H-section and is provided with a stop s for preventing the removal of the casing. The wedge n is positioned against the rear wall of the casing by a lug p and is held fast by upper and lower brackets q and bolts r. The other wedge o has a sliding fit in the brackets q and is arranged between the wedge n and the web j. In a modification the wedging device comprises a channel member which is bolted to the rear wall of the casing and carries, within the channel, a pair of wedges arranged one above the other. Between each wedge and the web j is arranged a roller having reduced ends which engage in inclined slots formed in the two parallel flanges of the channel member. When the prop is subjected to pressure the rollers tend to ride up the wedges and thus bear heavily against the web.
Patent GB-452839-A (GB)
Title: Improvements in or relating to motion picture apparatus employing film magazines
IPC: G03B1/56
Filed: 1936-03-31
Abstract: 452,839. Kinematograph apparatus. KODAK, Ltd., Kingsway, London.-(Assignees of Wittell, O. ; 343, State Street, and Martin, L. R. ; 333, State Street, Rochester, New York, U.S.A.) March 31, 1936, No. 9543. Convention date, June 11, 1935. [Class 97 (i)] An element 20 rigidly connects a gate member 9 within a film magazine to the front wall 8 of the magazine, and has an external surface parallel to the film - engaging surface of the member 9 and spaced from it at such a distance that, when it abuts a surface or projection 22 on the wall 6 of the camera &c. in which it is inserted, the plane of the sensitive surface of the film F is in the focal plane of the objective ; projections may also be provided in the magazine chamber of the camera &c. to position the magazine vertically and transversely. As shown, the element 20 is a rivet gripping both the wall 8 and out-turned portions 21 of the member 9 between its head and base; the face of the rivet head is kept against the projection 22 by a spring 23 bearing against the rear end of the magazine. The magazine is positioned vertically by machined projections 33, 36, against which it is pressed by springs 37, 38, and the effective height of the projection 36 may be adjustable by a screw 35. Transverse positioning is effected by projections 39 on the wall 19 of the magazine chamber, and by springs 42, 40, respectively carried by a plate 43 and by the cover 26 of the chamber. The magazine may contain one or more discs 25, to position the film F laterally within it, and with a sliding flexible shutter 27, operable by a pin 28, and slotted at its lower end so as to be movable to a position covering the exposure aperture and feed slots without fouling the rivet 20.
Patent GB-325154-A (GB)
Title: A safety device for automatic firearms
IPC: F41A3/50
Filed: 1929-03-25
Abstract: 325,154. Heinemann, K., and Rheinische Metallwaaren-und Maschinenfabrik. March 25, 1929. Breech actions, sliding breech-block.-A safety device, applicable to various types of automatic firearms, prevents firing when the mainspring weakens or breaks. Figs. 1 and 2 illustrate in sectional elevation and plan the device as applied to a fixed-barrel gun having a toggle-link breech action. A two-armed safety lever h is pivoted so that one arm h<2> rests against the sear-engaging tongue-piece, g of the trigger f, while the other arm h<1> lies in the path of the rear abutment c' of the mainspring c. The breech is operated through the toggle-levers b<1> and b<2>, the closing movement being supplied by the mainspring c which acts on the extension b<3> of the. lever b<2>. Should the mainspring weaken or break, the abutment c<1> will not travel its normal distance rearward. The safety lever h is thus rotated by the spring i and the arm h<2> depresses the tonguepiece g. In this position, movement of the trigger f will not cause the tongue-piece g to de,- press the arm e<1> of the sear e and consequently the firing of the gun is prevented. In one modification, the safety lever is arranged so as to lock the trigger when the mainspring c weakens. In a second modification, the safety lever is operated directly by the breech-block, while, in a third modification, the safety lever is operated by a movable front abutment of the mainspring.
Patent GB-432530-A (GB)
Title: Improvements in and relating to methods of reconditioning worn rails
IPC: B23K31/02
Filed: 1935-03-27
Abstract: 432,530. Renovating worn rails. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. March 27, 1935, No. 9585. Convention date, March 27, 1934. [Class 83 (iv)] Welding by fusion.-In a process of renovating the worn ends of rails, a straightedge is laid along the tops of the rails 1, 2, to indicate the extent of the worn portions 4, 5, oblique lines 6, 7 are marked on the rails to indicate the inner boundary of the welding areas, diagonal lines 8, 9 are marked to divide the welding areas into triangles and weld metal is deposited in the form of a flat sinuous bead 10 which is continuous in each triangular area. The lines 6, 7 may intersect the worn surfaces at the sides of the rails, as shown, or may lie outside these lines, and the lines 6 . . . 9 may, e.g. be chalk lines. The welding operations, which may be made by arc welding, start at the vertices 11 of the triangles, opposite the diagonals 8, 9, and terminate at one end of each diagonal, as at 12, 13 so that craters formed by termination of the arc will not be located in the body of the deposited metal. Alternatively, the electrode may be directed away from the rail joint x along the edge of the rail and the arc length gradually increased until it is broken. The turns of each sinuous deposit overlap each other considerably, preferably by 50 per cent, as shown in Fig. 3, and the final turns on each rail overlap completely along the diagonals 8, 9. After welding the rail surfaces are reduced to a common level, preferably by grinding, and if necessary the joint x is slotted to remove surplus metal.
Patent GB-729922-A (GB)
Title: Improvements in vests or waistcoats
IPC: A41D1/04
Filed: 1952-04-16
Abstract: 729,922. Waistcoats. EMMS, C. April 15, 1953 [April 16, 1952], No. 9596/52. Class 141. A dress vest or waistcoat having a pair of overlapping front portions 10, 11 and made in the form of a belt or band to fit around the waist, has each front portion provided with a lapel,. collar or revere 21, 22. The lapels may be pointed or rounded. The front portions may be coupled at the back by one or more elastic bands 28 with end hooks, and may have stiffeners 32. The front portions are connected independently of the buttons 19, by a flap 17, Fig. 2, on one portion'stitched at 16 to the other portion. Rubber surfaced friction pads 37 may be fitted and all edges of the front portions are reinforced with stiff tape. Specifications 431,370, 450,457, 480,682, and 530,143 are referred to.
Patent GB-314574-A (GB)
Title: Improvements in and relating to spring and other motors for gramophones and the like
IPC: G12B3/10
Filed: 1928-03-30
Abstract: 314,574. Ward, W. F. Hoare-, and McKellen, S. D. March 30, 1928. Electric and magnetic. -A magnetic or electromagnetic governor or brake for a spring or electric motor comprises a bar magnet 1 which lies across an aluminium or copper disc rotating with the motor and which is pivoted so that it may lie radially or tangentially of the disc. It is normally held in an intermediate position by a hair-spring 4 or weight 6, or both. The magnet automatically adjusts itself to a position to increase or decrease its braking moment by the increased or decreased drag produced by the disc. The disc is thicker at the circumference than at the centre to increase its momentum and the eddy-current effects. In the arrangement, Fig. 3, the magnet is of U-shape, leg A acting as in Fig. 1, while leg B operates in nearer proximity to the disc's periphery; or the leg B may be a counterweight. The magnet may have a sliding movement instead of an oscillating one. In a modification, the magnet is mounted to oscillate in a support which is movable radially, whereby adjustment of speed is effected. The position of the sliding bearing may be varied gradually by connecting it to the motor, tone-arm &c. In a further modification, the magnet is pivoted to the end of a pivoted arm. Specification 291,824, [Class 40 (ii), Phonographs &c.], is referred to.
Patent GB-399416-A (GB)
Title: Improvements in or relating to map or route card holders for use on vehicles or aircraft
IPC: B60R7/08
Filed: 1933-03-31
Abstract: 399,416. Map holders. BIRKS, W. R., Whitcot, Branscombe, near Beer, Devon. March 31, 1933, No. 9783. [Class 146 (ii).] A holder for a set of route sheets, which are united at one edge, comprises a front plate 1 to which the sheets are clipped by top and bottom clips 3, 4, and which forms the front wall of a pocket 7, into which a used sheet, such as 2a, is turned after releasing it from the lower clips 4, an inclined guide 9 being provided to facilitate the insertion. The holder is attached to a vehicle by means of an adjustable or removable bracket 10, on the rear wall 5 of the pocket, and, in use, when the driver wishes to turn over the uppermost sheet, he pulls it out from under the lower clips 4 and tucks the end of the sheet so released into the pocket 7. A finger slot 12 may be provided in the rear of the pocket to assist in pulling the sheets into or out of the pocket. The clips 3, 4 may be adjustable to accommodate sheets of different size or thickness and the pocket 7 may be varied in size as by attaching the plate 5 to the side walls by pins which pass through slots in the walls and are fixed in position by nuts. The sheets may be illuminated by a shielded or other source of light, and the construction may be modified to accommodate sheets bound along their lefthand edge.
Patent GB-477603-A (GB)
Title: An improved method of facing walls
IPC: E04F13/02
Filed: 1936-04-02
Abstract: A method of facing walls consists in first applying a succession of cement-sand coatings, at least one of which contains a waterproofing substance, then applying by means of a spray a coating of cement and other materials, and finally in impregnating the surface formed by the last-mentioned coating with an insoluble precipitate. Alternatively, the wall may be faced by the application, first, of a sand-cement slurry, secondly, of a number of sand-cement coatings, at least one of which contains a waterproofing substance, and thirdly, of a cementitious composition containing a metallic soap, and the surface of the last mentioned layer is treated with alternate applications of soap and alum solutions.  Three sand-cement coatings may be applied on to the layer of sand-cement slurry, and the proportion of sand in these three layers may be gradually increased. The slurry and the succeeding coatings may all contain a waterproofing agent, such as zinc palmitate, but this is an essential ingredient of the third sand-cement coating.  Each coating, after the first, is applied before the previous coat is too hard to receive a thumbnail impression.  The cementitious composition which is applied by spraying on to the last sand-cement coating may comprise 100 parts by weight of cement, 5 parts of calcium hydroxide, 10 parts of puzzuolanic earth, 2,5 parts of sodium chloride, ,06 parts of zinc palmitate or other metallic soap, and water.  When this surface is quite dry, it is impregnated with an insoluble precipitate which may be effected by spraying on to the surface alternate applications of potassium oleate solution and alum solution.  The final surface may be polished by hand or mechanically.  Specification 422,051 is referred to.
Patent GB-712362-A (GB)
Title: Improvements relating to inductor alternators
Inventor: ASBURY ALLAN
IPC: H02K19/24
Filed: 1952-04-18
Abstract: 712,362. Inductor alternators. ENGLISH ELECTRIC CO., Ltd. Anril 17, 1953 [April 18, 1952], No. 9798/52. Class 35 Successive laminae or groups of laminµ in the rotor of an inductor alternator are angularly displaced in the same direction by an amount equal to one rotor slot width or a multiple thereof, for the purpose of eliminating modulation of the output voltage due to inaccuracies in the punching of the laminae. The rotor laminae 1 are provided with tabs 3 which engage any of a series of splines in the motor shaft 2,  a  reference notch 4 being provided to indicate the position of each lamina. Alternatively the shaft may carry a key engaging any of a plurality of notches in the laminae. The stator laminae may similarly be displaced by a D.C. pole pitch or a multiple thereof.
Patent GB-489270-A (GB)
Title: Photo-electric screens for television and methods of manufacturing the same
IPC: H01J29/43
Filed: 1938-03-31
Abstract: 489,270. Cathode-ray tubes. LORENZ AKT.-GES., C. March 31, 1938, No. 9892. Convention date, March 31, 1937. Drawings to Specification. [Class 39 (i)] A photo-electric screen is made by evaporating insulating-material, e.g. quartz to form a thin layer on a metal plate, and then applying to the insulating-material a layer adapted to store electric charges, e.g. a photo-electric layer capable of secondary emission. The screen is mounted in a cathode-ray tube for television transmission.
Patent GB-806428-A (GB)
Title: Improvements in or relating to polarized electromagnetic devices
IPC: H04R11/00
Filed: 1957-03-26
Abstract: 806,428. Electromagnets. VIGREN, S. D., ZANDER, R. A., and CLAESSON, P. H. E. March 26, 1957 [March 29, 1956 ; Jan. 31, 1957], No. 9921/57. Class 35. [Also in Groups XXXVII and XXXIX] An electromagnetic device such as a polarized relay or telephone receiver has an energizing coil 16 surrounding an armature 15 pivoted by means of torsion arms 19, 20 adjacent to a permanent magnet 12. The latter is mounted between two polepieces 13, 14 having poles 17, 18 on either side of the armature at the end remote from its pivot so that the coil is between the air gap between the poles and the pivotal axis of the armature and the flux from the armature to the polepieces must pass through the permanent magnet. In a relay (not shown), the armature inertia may be balanced by contact actuating arms on the other side of the pivotal axis.
Patent GB-191003858-A (GB)
IPC: B21F45/24
Abstract: 3858. Hulot, H. Feb. 16, 1909, [Convention date]. Stapling.-A number of continuous wires 29 are fed forward over a grooved matrix plate 9 by suitable means, and a screw press 28 is operated to bring down a spring-supported plate 23 carrying cutters and dies alternately arranged above the wires to cut and form each wire into a series of staples. The dies as they form the staples press them into recesses 16 formed between a number of bars 14 arranged in a frame 15 to form the matrix, the chips falling freely through holes 17 in the bars which are continued through the other members of the machine. The matrix plate 9 is supported by springs 19 above a hammer plate 8, in which are secured forked members 12, each leg of which co-operates with a recess 16. Distance-pieces are inserted between the matrix plate and the hammer plate during the operation just described. To drive the staples simultaneously into material, the press is raised, the driver plate 23 is swung from beneath it around one of the columns of the press, and the matrix and hammer plates are slid forwards together on guides 6, 7. The material is placed on the matrix plate, the whole is slid back beneath the press, and the distance-pieces are removed. The press is brought down upon the material, and, the springs 19 yielding, the staples are driven by the hammers 12 upwards into the material. The wire for the staples may be notched by the feeding-means; or the legs of the staples may be toothed by the dies or recesses. The plates may be of any suitable form, or may have openings to receive any article to be stapled. The bars 14 and the position of the hammers, dies, and cutters may vary according to the pattern of stapling desired.
Patent HK-103095-A (HK)
Title: Electrodeposition of tin-bismuth alloys
Inventor: WILSON HAROLD P
IPC: C25D3/56
Filed: 1995-06-29
Abstract: Baths are disclosed for electrodepositing bismuth-tin alloys of all ratios as shown by the Figure. The baths are of the acidic alkylsulfonate-type. Soluble bismuth anodes are used to replenish bismuth in the bath solution. The baths find particular use in electrodepositing eutectic compositions such as 58 % Bi-42 % Sn.
Patent HK-129194-A (HK)
Title: Circuit arrangement for the generation of a dephased sine wave voltage
Inventor: GLEIM GUENTER
IPC: H02M7/54
Filed: 1994-11-17
Abstract: In general, commutation pulses which control digital-analog converters are used for controlling multi-strand motors. In this case, one digital-analog converter is required for each strand. This means high circuit cost, since the digital-analog converters must have very tight tolerances in order to ensure even control of the strands. 
<??>The invention consists of a resistor network being used as a single digital-analog converter, consisting of N resistors connected together in a ring shape, N being an even number and the quotient of N and the number of strands having to be an integer. The strands are located distributed symmetrically at the junctions of the resistors. A control circuit switches a voltage source in a cyclic sequence to two diametrically opposite circuit points of the resistor network. 
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Patent HU-T44420-A (HU)
Title: Wood preservative
Inventor: GOLETZ PETER
IPC: B27K3/50
Filed: 1986-04-03
Abstract: 1. Wood preservation agent, preferably a paint-on wood portection agent, containing 1. 0.0001-5 parts by weight, preferably 0.01-4 parts by weight (relative to 100) parts by weight of the wood preservation agent, preferably paint-on wood protection agent, and calculated without pigments, colourants, corrosion protection agents or other additives), of a biocide or biocide mixture which is soluble or partly soluble in a water insoluble, organic-chemical, difficult to volatilise solvent or mixture of solvents.
Patent HU-T61651-A (HU)
Title: Process for producing veterinary compositions of desincecting and purifying activity
Inventor: SIMON FERENC
IPC: A01N43/36
Filed: 1991-06-06
Abstract: Veterinary disinfectant and cleansing compsns. contain a mixt. of N-chloro-N-alkali- aryl-sulphonamide and N-chloro-succinimide in 20:1-1:10 (pref. 10:1-1:1) ratio. Anionic surfactants and customary formulating cpds. are added in 1:1-1:20 (pref. 1:3-1:6) ratio. - Pref. anionic surfactants are alkyl-aryl-sulphonic acids and/or alkyl-sulphonic acids and/or alkyl-ethoxy-sulphonic acids. Pref. additives are alkali-polyphosphates, polysulphates, polycarbonates and polyhydrogen carbonates.