baber/WOPTO huggingface dataset:
Patent GB-557538-A (GB)
Title: Improvements in and relating to electric arc furnaces
IPC: H05B7/105
Filed: 1942-05-22
Abstract: 557,538. Electric arc furnaces. BRASSERT & CO., Ltd., H. A., and NISSIM, R. May 22, 1942, No. 6976. [Class 39 (iii)] A furnace electrode 10 is enclosed in a sheath 12 which is sealed to it at the upper end, and at the lower end is provided with a water cooled ring 13 and a flange 14 dipping into a sand trough 15 in the furnace roof 16. The electrode and sheath are suspended at 18 independently of the furnace. Clamps 19 are provided around the electiode within the sheath, and each is adjusted by manual operation of a screw 23 against a rod 21 through a wedge 22. Pressure on the electrode clamp may also be adjusted by rotation of the ring 24. The ring may be rotated by a hydraulically operated piston 27 having fluid pressure on both sides, that on the upper side being controlled by a valve 30. If the exhaust pipe breaks, the piston moves downwards to lock the clamp. Two wedges may be employed as at 31, or the clamp may be tapered as at 33. In a modification, Fig. 2 (not shown), the clamp is adjusted by means of a wedge mounted on a threaded vertical adjusting rod. In another modification, Fig. 3 (not shown), pressure is exerted upon the clamp by a screw rotated by a rack and pinion mechanism, and in Fig. 4 (not shown), by a pair of wedges, one of which is vertically movable. In Fig. 5 (not shown) pressure is exerted on the clamp by spring pressure upon a piston, the pressure being adjustable by fluid pressure on the opposite side of the piston. In another modification, Fig. 6 (not shown), each clamp is suspended independently of the sheath and the furnace roof, and the sheath is suspended independently of the roof.
Patent GB-1299294-A (GB)
Title: Improvements in and relating to reciprocating motors operated by pressure medium
IPC: F01L25/08
Filed: 1970-02-13
Abstract: 1299294 Fluid operated reciprocating motors ROBERT BOSCH GmbH 13 Feb 1970 [15 Feb 1969] 7016/70 Headings F1A and F1M A fluid operated reciprocating motor comprises a non-magnetizable cylinder 1 in which slides a piston 3 having an iron core 6 to which permanent or electro-magnets 17 are attracted at the ends of each stroke, the movement of the magnets being arranged to operate pilot valves 22 controlling the changeover of a main distributing valve 28. Each magnet 17 is mounted on a lever 15, which when pivoted, moves a pin 19 to cause a snapaction spring 21 to operate its pilot valve 22. Operation of say the right hand pilot valve 22 communicates fluid from a line 25 to a control port 34 of the main valve 28 whereby it moves to direct fluid to the right of piston 3 instead of the left. Alternative pilot valve constructions are described, Figs.2 and 3 (not shown). Brass or austenitic steel are specified for the cylinder.
Patent GB-124931-A (GB)
Title: Light Proof Container for Photographic Films when used to make X-ray Negatives or Pictures of the Teeth.
Inventor: BUCK ARTHUR WELLS
IPC: G03C3/00
Filed: 1918-04-26
Abstract: 124,931. Buck, A. W. April 26, 1918. Envelopes, sheaths, and holders, plate and like; R÷ntgen-ray and like apparatus. - A container for films for X-ray photography, more particularly for use in photographing the teeth, is made of material such that it may be bent and will retain the form into which it is bent. As shown in section in Fig. 3, the container comprises a thin back-plate 10 of a ductile metal having its edges 12 bent over to enclose both a film 13 and a front plate 11. The front plate consists of celluloid which is rendered opaque or transparent to red rays only, or of paper or other material which is opaque to light rays but permits the passage of X-rays. The back 10 is preferably made of bismuth, lead, platinum, or other metal of high atomic weight, and is held closely against the film by tightly clinching down the edges 12. In a modification, Fig. 4, the container comprises a metal rim 14 which encloses a back 10<a> of ductile or pliable material and a front 11<a> of celluloid or paper. In further modifications, the back may consist of ductile or pliable material faced with a metal of high atomic weight, and the front may be clinched over the back. The container may have rounded corners and may enclose a plurality of films in superposed arrangement.
Patent GB-199085-A (GB)
Title: Improvements in or relating to convertible heating and illuminating vapour burning lamps
IPC: F23D11/44
Filed: 1922-03-09
Abstract: 199,085. Lucas, P., and Vereinigte Metall & Stanzwerke Ges. March 9, 1922. Portable oil stoves. -In a convertible heating and lighting wickless vapour lamp, a supporting ring 19 for utensils is removably attached to the fuel container 1 by means of legs 21 which are pivoted to lugs 20 on the ring and are provided with hooks 23 which snap into a groove 18 in the fuel container. The necessary inward horizontal force at the groove is caused by the legs 21 abutting against the lugs 20 above the pivots.
Patent GB-779812-A (GB)
Title: An arrangement for regulating the distance between two objects disposed at a variable distance one from the other
Inventor: SCHLAPP GEORG
IPC: B23K9/073
Filed: 1953-03-13
Abstract: 779,812. Automatic control systems. FICKERT, H. March 13, 1953, No. 7096/53. Class 38 (4). In a system in which two members are automatically maintained in light mechanical contact or at a constant distance apart by adjustment of the position of one of them in the appropriate sense by a motor, the motor operates through an electromagnetic clutch controlled by two thermionic switching valves, the grid biases of which are influenced by electrical interaction between the members. In Fig. 1 a cylindrical member 10, the effect of gravity on which is balanced by a weight 5 is moved towards or away from a fixed cylindrical member 11 by energization of an electromagnetic clutch winding 14 or 15 which couples one of two oppositely rotating continuously driven shafts to a rack and pinion moving member 10. The arrangement is such that when members 10 and 11 are not touching, a thermionic valve 9 is conductive to move member 10 towards member 11 but when the members touch, change in the grid bias of a thermionic valve 8 causes the latter to be the conductive valve so that member 10 moves away again. The two valves thus conduct alternately to maintain light mechanical contact between the members. Application to copying devices in machine tools, arc lamp and welding electrode control is referred to. The grid bias of valve 8 may be controlled through an amplifying device by the inductive or capacitative coupling between members 10 and 11 to maintain a predetermined gap between the members.
Patent GB-677101-A (GB)
Title: Radial-cylinder pumps and motors
IPC: F03C1/36
Filed: 1950-03-22
Abstract: 677,101. Liquid-pressure engines; hydraulic couplings. WOYDT, E. March 22, 1950 [June 18, 1949], No. 7136/50. Class 69 (ii) [Also in Group XXVIII] In a motor having cylinders 13 disposed radially in a block 6 and pistons 12 reciprocated by an eccentric 2 rotatably mounted on a shaft 4 which is rigidly connected to the block by a disc-shaped member 5 disposed laterally of the pistons, the inlet and exhaust passages 21 to and from the cylinders are disposed in the discshaped member. The eccentric 2 is carried by a shaft 3 and has a guide ring 8 and rollers 27 are placed between the ends of the pistons and surfaces on the ring 8 ; rings 9, 10 engage flanges 11 on the pistons. A pin 7 extends from the disc 5 and has supply and exhaust passages 14, 25 which communicate with the surface of pin 4 through ports 15, 24 and grooves 16, 23. The bore of the eccentric has grooves 17 separated by abutments 18 and operate as a valve to connect alternately the passages 21 to the passages 14, 25. Either shaft 3 or shaft 4 may be used as the drive shaft. In a modified form as shown in Fig. 5, the supply to and exhaust from the cylinders 111 is controlled by slide valves 133 which are actuated by an eccentric 140 mounted on the rotor 104 and connected to the casing 101 by a bolt 145 adjustable in a slot. The supply and exhaust passages 136, 137 communicate to the exterior through a fitting 158. Two superposed eccentrics 106, 107 are mounted on the shaft 103 and are adjustable by worms 108, 109. The heads 113 of the pistons are connected to rings 162 and carry rocking members 114 having swivelling shoes 117 that engage the eccentric 106 and also carry rollers 119 guided in radial slots. Fig. 9 shows a hydraulic coupling comprising a pump 13 constructed as shown in Fig. 1 combined with a motor. The pump and motor cylinders are arranged in the block 6 that is connected by the disc 5 to the pins 4, 31. The motor has an eccentric 38 adjusted by a worm 33 and a superposed eccentric 39 connected to its adjusting worm 36 through an Oldham coupling 37.
Patent GB-491932-A (GB)
Title: Process for the polymerisation of mono-olefines
IPC: C07C2/18
Filed: 1937-03-11
Abstract: Mono-olefines such as propene or butene are polymerized in the presence of a liquid consisting substantially of a mixture of ortho-and pyro-phosphoric acids, the specific gravity of which mixture at 15 DEG  C. is above 1,90 and, in particular, between 1,90 and 1,99.  Such mixtures are obtained by admixture of the ortho- and pyro-acids or by heating commercial phosphoric acid in vacuo.  An example gives the yields of polymer when propene is treated at 170-200 DEG  C. and 25-30 atmos. with mixtures of acids having specific gravities between 1,905 and 1,990, corresponding to 32 and 72 per cent pyro-acid respectively.
Patent GB-768306-A (GB)
Title: Photographic stereoscopic prints
IPC: G03B35/00
Filed: 1955-03-11
Abstract: 768,306. Photographic stereo plates. INTERNATIONAL POLAROID CORPORATION. March 11, 1955 [April 7. 1954], No. 7197/55. Class 98(2) Observable ghost images in stereoscopic pairs of black-and-white or coloured oppositely light-polarizing positive images which are normally viewed with the aid of corresponding analysers, and are caused by imperfection of the latter to permit vision of the respective right or left eye image only to the exclusion of the other one, are avoided by forming one or both images as a positive of one of the pair and a weak negative of the other one. The images are normally formed by imbibition transfer from relief matrices, colour work requiring an individual set of masks for each image of the stereoscopic pair, each set comprising an individual mask for each colour component of the original, with use of the masks in preparation of the matrices; or the process may be simplified by printing through the original on to black and white panchromatic material of low contrast to produce a single composite mask for each set of the printing matrices, thus as shown in Fig. 5 pairs of cyan, magenta and yellow matrices are produced as result of printings through the corresponding . masked colour negatives using appropriate filters. Imbibition transfer may be made by wetting each matrix with a dichroic dye or stain and applying to a transparent molecularly oriented high molecular weight hydroxyl containing polymer sheet as of polyvinyl alcohol, the pairs of images being produced on opposite sides or in side by side relation, with reflecting support when direct vision is used. Directions for finding the gamma needed by the masks, as result of observation of an unwashed original, are provided. Specifications 556,578 and 562,877 are referred to
Patent GB-1177627-A (GB)
Title: Composition Comprising a Solid Petroleum Hydrocarbon.
Inventor: GALANAKIS ALAIN
IPC: C08L95/00
Filed: 1966-02-18
Abstract: 1,177,627. Fertilizers. BRITISH PETROLEUM CO. Ltd. 10 Feb., 1967 [18 Feb., 1966], No. 7215/66. Heading C1B. Soil is treated with a composition comprising a solid petroleum hydrocarbon, e.g. asphalt or wax, and calcium carbonate, dolomite, bentonite or clay. A granular product is produced by grinding a mixture of the solid constituents or a solidified melt of the hydrocarbon containing the other constituent.
Patent GB-395088-A (GB)
Title: Improvements in electrical switchgear
IPC: H02B1/00
Filed: 1932-03-10
Abstract: 395,088. Switchgear structures. DAVIES, D. R., 14, Ruabon Road, Didsbury, near Manchester. March 10, 1932, No. 7233. [Class 38 (v).] In a switchgear structure employing isolating switches or arrangements and vertical single-break oil circuit-breakers the fixed contact of eacb circuit-breaker is located in the base of the tank with its associated termina. led out at or near the base thereof anc the other termina' associated with the moving contact is led out through the side of the tank at a more elevatec part of the latter. As shown in the Figure 1 the circuit breaker is provided with contact mechanism of the type described in Specification 369,235 and has the fixed socket contact 7 mounted on the base of the tank 2 so that its terminal connection 8 passes downwardly through the base and has the terminal 15 conducting current to the -movable plug contact 1 passing through the side of the cylindrical tank at a more elevated position. The plug contact 1 passes through a hole in the end of the terminal 15 and may also be connected thereto by a flexible shunt 19. This contact is operated by mechanism 18 in the upper portion of the tank. The terminal 15 passes through a condenser type insulating bushing 16 to a bus-bar chamber 20 and terminates in a member 23 to which is pivoted the blade 22 of an isolating switch adapted to engage a bus-bar contact 21. The terminal 8 similarly passes to the fixed contact of an isolating switch adapted to be engaged by a blade 5a pivoted to the terminal 10 of a cable 6. This blade 5a may alternatively engage an earthing contact 13. In an alternative arrangement, Fig. 3, not shown, the positions of the bus-bars and cable ends may be reversed. The invention is also described in relation with vertical and horizontal draw-out switchgear structures for duplicate bus-bar systems (Figs. 2 and 4, not shown). The bus-bars may be enclosed in condenser type insulation such as in the manner set forth in Specifications 345,303, and 354,350, [Group XXXVI].
Patent GB-471817-A (GB)
Title: Improvements in or relating to electron discharge device arrangements
IPC: H01J31/50
Filed: 1936-03-10
Abstract: 471,817. Photo - electric discharge tubes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March 10, 1936, No. 7265. Convention date, March 14, 1935. [Class 39 (i)] In the production of a fluorescent image from an optical or infra-red image which is projected on to a photo-electric cathode 11, the electron stream is accelerated towards the fluorescent screen 12 by an electrode system whose field strength near the cathode is less than the strength thereof near the screen. As shown in Fig. 1, a number of plates 13 are connected to a potentiometer 14 with varying spacings to give greater voltage differences on the plates near the screen. In a modification, a helical resistance 15 may be used with varying spacing in the turns ; an auxiliary current is passed through the resistance to give the desired biassing; this varying resistance, effect may be obtained by a tubular conductive coating 16, Fig. 3, of varying diameter or of varying specific resistance. The plates 13 in Fig. 1 and the resistance coatings may be formed of water glass and carbon on the inside of the envelope. The plates 13 or resistances may be used alone to focus the electrons on the screen or additional focusing means may be used.
Patent GB-216251-A (GB)
Title: Improvements in and relating to spindle apparatus for spinning and twisting and other like machines used in the treatment of yarns and threads
IPC: D01H7/06
Filed: 1923-03-14
Abstract: 216,251. Proulx, C. A. March 14, 1923. Ball bearings for spinning, twisting, and like machines. A sleeve 31, which adjustably carries the inner races of the ball bearings of the wharl, is secured to a bushing 30 surrounding a fixed spindle and is provided with a collar 32 against which the inner race 28 of the upper bearing butts. The inner race 29 of the lower bearing is screwed on the sleeve and secured thereon by a screwed collar 38 and 'an interposed washer 34, which engages a slot 33 in the sleeve and, by means of one of a series of notches 36 in its periphery, with a projection 37 on the race 29. The wharl is provided with an oil cap 18 which houses an absorbent washer 21, and with a cup 14 which may be provided with oil-apertures.
Patent GB-546487-A (GB)
Title: Improvements in and relating to power transmission couplings
IPC: F16D3/74
Filed: 1940-10-07
Abstract: 546,487. Flexible couplings. RUBBER BONDERS, Ltd., and WHITTINGHAM, C. Oct. 7, 1940, No. 7497/42. Divided out of 545,079. [Class 80 (ii)] Relates to couplings of the type such as described, e.g. in Specification 449,684, comprising annular rigid members b, c, Fig. 1 adapted to be connected to a driving or a driven member and a rigid disc a adapted to be connected to the other member, and having its marginal portion interspaced with the annular members and connected to the latter by annular bodies d of resilient material bonded to the opposed faces of the members and disc, wherein the annular members are detachably secured together. According to the invention the annular members are detachably secured together and held in axially spaced relation by means between and connecting their outer margins. These means comprise distance pieces e, Fig. 1 bolted to the members and passing with clearance through elongated notches f in the disc a. The notches are lined with rubber g to provide resilient abutments for the distance pieces should the rubber members d be ruptured. Other forms of coupling and distance pieces are the same as those described in Specification 545,079.
Patent GB-253228-A (GB)
Title: Improvements in driving gear for shafts arranged around a common centre, applicable to swath turners and other agricultural machines
IPC: A01D78/14
Filed: 1925-03-20
Abstract: 253,228. Bamford, J., and Bamford. C. J. March 20, 1925. Haymaking. - In driving gear for shafts arranged to rotate around a common centre but held from rotation about their individual axes in order to maintain the tines of a swath-turner or other members carried by the shafts pointing towards the ground, a driving disc 2 is secured to the main shaft 1 and carries the rotated shafts 3 A crank 6 is mounted freelv on the shaft 1 and carries a fixed pin 7 provided with a handle 18 whereby the entire head can be moved bodily along a transverse bar 8. The pin 7 carries a controlling disc 10 provided with balls or ballheads 11 cast in or integrally with the disc or riveted thereto. The shafts 3, which in the form shown are in converging relationship, have pivoted at their inner ends links comprising sockets for the balls carried by the disc 10, and preferably taking the form shown in Fig 2. In this form each link is formed in two parts secured together by bolts 4, 16, the bolt 4 serving to connect the link to its shaft 3. The lower end 14 of each link is of part spherical shape to engage a ball, being cut away at one place to provide clearance for the shank of the ball.
Patent GB-1240404-A (GB)
Title: Textile printing pastes
Inventor: BENNINGA HARM
IPC: C08B31/00
Filed: 1969-02-12
Abstract: 1,240,404. Printing pastes. SCHOLTENHONIG RESEARCH N.V. 11 Feb., 1970 [12 Feb., 1969], No. 7520/69. Heading D1B. Textile printing pastes comprise water, a dye, at least one polymeric organic thickening agent which is substantially completely dissolved in water, at least one cold-water swelling cross-linked starch derivative which is substantially insoluble in cold or hot water, the granules of which are swollen in water to at least such an extent that they do not exhibit a polarisation cross section crossed nicols but not to such a degree that they have disintegrated, the dry substance ratio between the thickening agent and the starch derivative being from 0.11 to 9 parts by weight of polymeric organic thickening agent per 1 part by weight of cold-water swelling crosslinked starch derivative. Cross-linked starch derivatives include starch ester or ethers containing hydrophilic sulphate, phosphate, hydroxyalkyl, carboxyalkyl and sulphoalkyl groups, polymeric organic thickening agents include alginate, acrylamide homo-or copolymer or water soluble salts of acrylic or methacrylic acid homo-or copolymers exudate gum, carob bean gum ether, guar gum ether and British gum. Dyes used include reactive, acid and mordant dyes or cotton, nylon and rayon fabrics.
Patent GB-220898-A (GB)
Title: Improvements in reducing valves
IPC: G05D16/10
Filed: 1924-03-25
Abstract: 220,898. Edwards, G. T., and Blakeborough, R. A. March 25, 1924. Addition to 207,004. Pressure-regulating valves.-A pressure-regulating valve having a differential piston 4<1>, 4<2> arranged to work in a cylindrical member 2<1> depending from the cover 2 of an enlarged part of the casing 1<6> is controlled by an auxiliary valve f actuated by a piston k subject to reduced pressure. A passage a<1> leading to the main actuating chamber a is connected by a pipe b to a chamber c<1> in the auxiliary valve casing c. The cylindrical auxiliary valve f has an annular groove f<1> and works in a liner having ports d, e leading to the chamber c<1> and to an inlet pipe i controlled by a cock h and a port c<3> leading to a chamber c<2> connected by a pipe g to the outlet side of the main valve. The auxiliary valve is connected by a lever j to the plunger k which is loaded by weights so that when the reduced pressure rises, the valve f is moved downward so as to admit inlet pressure to the actuating chamber and thus close the main valve. When the pressure falls, the valve rises and connects the actuating chamber to the outlet side of the main valve or to exhaust. In a modification the piston valve f is replaced by two spring loaded lift valves actuated by a common spindle.