baber/WOPTO huggingface dataset:
Patent GB-246243-A (GB)
Title: Improvements relating to offset printing machines
IPC: B41F3/80
Filed: 1924-11-05
Abstract: 246,243. Marks, E. C. R., (Gerasch Ges., E.). Nov. 5, 1924. Blankets.-In offset printing-machines the rubber cloth f attached to the off -set cylinder, or to both cylinders between which the sheet to be printed passes, is stretched laterally as well as circumferentially in order to prevent creasing of the sheet. The lateral edges of the cloth are clamped between cover-plates d and wedge-shaped strips b sliding in dovetail grooves formed in the edges of the cylinder a. clamps g being provided for holding the cloth more securely. The clamping-members are sunk sufficiently below the surface of the cylinder to prevent damage to the co-operating cylinder. In a modification, the strip-guiding means consists of annular lateral parts. According to the Provisional Specification, this method of stretching may be utilized in flat offset printing.
Patent GB-518142-A (GB)
Title: Improvements in and relating to the manufacture of plaster board
IPC: B28B19/00
Filed: 1938-09-12
Abstract: 518,142. Making plaster board. JOINTLESS WALLS & CEILINGS, Ltd., and WARRINER, M. H. Sept. 12, 1938, No. 26573. [Class 87 (ii)] In the manufacture of plaster board of the kind having an exposed layer of plaster applied to a single backing sheet or to the outer surface of one of the covering sheets of board consisting of plaster interposed between sheets of paper &c. plaster is applied to a backing sheet to form an exposed plaster surface, and one or more layers are removed from the plaster, when it has set, to produce a smooth level surface free from soft crumbly plaster. The exposed surface may be produced by the dry method described in Specification 447,541, or the plaster may be applied as a semi-liquid mass. As shown, a backing sheet is moved along a converer 1, Fig. 1, beneath a hopper A for dry plaster having a reciprocating side 4 and a rotary distributing brush 6. The sheet then moves beneath a hopper B having an inclined spreader 9, and beneath water sprays C. The conveyer is vibrated by a rotating hub D having projections 11. The board 14; Fig. 5 thus produced is placed on a table and is planed by a cutter 17, Fig. 5, carried on a reciprocating carriage having spring-pressed rollers 27 for keeping the board flat during the operation. The plaster removed by the cutter is withdrawn by suction.
Patent GB-161903-A (GB)
Title: Improvements relating to pistons
IPC: F16J1/16
Filed: 1920-02-03
Abstract: 161,903. Gardner, J. Feb. 3, 1920. Piston; connecting-rods. - In a trunk piston for an internal - combustion or other engine the gudgeon-pin f is hollow and is supplied with lubricant, which is retained by plates g serving also to prevent endwise movement of the gudgeon-pin. The plates g may be formed integral with the gudgeon-pin bushes as shown, or separate, and are bolted to the bosses a. The invention is shown applied to a piston of the type described in Specification 152,105, in which the gudgeonpin bosses are integral with a tubular strut c on the piston head, and are carried by flattened parts of the piston skirt.
Patent GB-158332-A (GB)
Title: Improvements in holding down bolts or the like
IPC: F16M7/00
Filed: 1919-10-30
Abstract: 158,332. Prior, T. Oct. 30, 1919. Bashes, bolt - hole; screw sockets.-An expanding socket for a machinery bolt &c. comprises two liners C of semicircular section formed with inclined edges F for engagement with wedge faces on a nut A which is drawn between the liners by the bolt B. The wedge faces do not intersect the threaded bore of the nut. Reference has been directed by the Comptroller to Spccification 3529/94.
Patent GB-519071-A (GB)
Title: Process for improving fabrics containing vegetable fibres
IPC: D06C29/00
Filed: 1938-09-13
Abstract: 519,071. Mercerizing fabrics. PLOETZ, K. Sept. 13, 1938, No. 26699. Convention date, Oct. 15, 1937. [Class 15 (ii)] Fabrics containing vegetable fibres are thoroughly impregnated with mercerizing lye and allowed to shrink so as to become swollen to a maximum extent and are then stretched to an extent exceeding the elastic limit of the fibres and de-lyed whilst being retained at these dimensions, stentered and finished off. In an example, a poplin fabric is steeped in caustic soda of 30Be, to which asteeping or mercerizing assisting agent has been added, in a mercerizing trough containing rollers A after first passing between squeezing rollers F. The fabric passes in its maximum swollen state between squeezing rollers B and is then stretched longitudinally from 7 to 10 per cent. A transverse pull is imparted by the spreader rollers C of the chainless mercerizing machine, and the 'stretched fabric is then immediately de-lyed with hot water while passing over a number of rollers D of equal dimensions rotating at equal speed whereby the dimensions are kept constant. The fabric is finally stentered and finished off. Fabric thus treated shows a longitudinal increase of 7 to 10 per cent. relatively to the raw material, while losing about 4 to 5 per cent. in width, and on washing only loses 2 to 3 per cent. in length. The process results in a high degree of lustre in the direction of maximum stretch. The fabric may be subsequently submitted to a shrinkage process as described in Specification 359,759, [Group VIII], after which it still maintains a longitudinal increase of 5 to 7 per cent. relatively to the raw material and does hot subsequently shrink more than 1 per cent. even after six washings.
Patent GB-281984-A (GB)
Title: Improvements in netted fabrics and devices for producing the same
IPC: D04G1/00
Filed: 1927-10-10
Abstract: 281,984. Holland, M. C. Oct. 10, 1927. Net-making; net-making apparatus; netted fabrics and netting.-Triangular mesh netting is made by hand with a netting shuttle carrying two threads, cords or strands of silk raffia &c. A scale 7 with staggered notches is used to position the knots. By using two scales, or otherwise, two or more triangulated nets can be interwoven in the course of manufacture to produce a single fabric. Ribbon &c. may be passed through the meshes to form designs for table covers, curtains &c.
Patent GB-526232-A (GB)
Title: Improvements in and relating to means for securing members together under tension
IPC: F16G3/00
Filed: 1939-03-14
Abstract: 526,232. Fastenings for friction bands of pulleys, rollers, clutches, brakes &c. PULTRA, Ltd., and SCHWABE, F. M. March 14, 1939, Nos. 26781/38 and 7924/39. [Classes 80 (i), 80 (ii) and 80 (iv)] [Also in Groups I, XXV and XXXIV] To secure a friction band on a pulley, roller, clutch or brake drum the intermediate steel layer 1 of the band has its ends formed with a tongue 4 and a slot 8. Undercut projections 6, 10 on the ends of the band are engaged by the jaws 12, 14 of a vice 11 to draw the ends together. A wedge 16 is inserted between undercut projections 5, 10a to hold the ends after removal of the vice. The wedge is cut to a suitable size after insertion and may be retained by a stud 18 projecting from a cover plate 17 secured to the rivets 7 after the connection is made. The whole of the connecting means lie within the surface of the band. Specification 470,261 is referred to.
Patent GB-792062-A (GB)
Title: Improvements in electric switches operable by rotary and axial movement of a controlmember
IPC: H01H25/06
Filed: 1955-09-20
Abstract: 792,062. Variable resistances. GENERAL MOTORS CORPORATION. Sept. 20, 1955 [Sept. 22, 1954], No. 26842/55. Class 37. [Also in Group XXXVII] A rheostat combined with a switch (see Group XXXVII) comprises a spring contact 97 having a crescent-shaped slot 116 and mounted on a bush 100 rotatable with a shaft 77 within the insulating rheostat body 30. The outer contact rim 114 rides over the resistance wire coil 96 received in a groove 29 in the body 30, whilst the inner part 122 of the contact rides over an annular contact 120. A tongue 31 of the body 30 extends through an aperture 33 in a mounting bracket 18.
Patent GB-265107-A (GB)
Title: Improvements in ground levers for railway points and switches
IPC: B61L5/02
Filed: 1926-10-28
Abstract: 265,107. Ferguson, J. J., Maguire, B., Ferguson, G. J., Anderson, J. H., and McGuire, P. Oct. 28, 1926. Ground levers with spring toggle reversed by repeated operations of the handle 16 have an arm 18 knuckle-jointed at 17 to the handle and provided with a pair of inclined horns 20, 21 engaging in recesses in the arm 1, one horn being alternately engaged and disengaged by the rocking of the arm 18. The recesses may be arranged for a pulling-arm 18 as shown, or for a pushing-arm. The arm 1 is pivoted at 3 and connects at 13 with the point rod 14. Flanges on the lid limit the side movement of the arm 18 while projections 26 engage horns 25 on the arm 1. The other arm 2 of the toggle has a notebed knife-edge, fulcrum 9. The handle is arranged to return by gravity.
Patent GB-863076-A (GB)
Title: Cooling system utilising liquid nitrogen as the coolant
Inventor: TAYLER COLIN ANDREW MILLAR
IPC: F17C9/04
Filed: 1958-08-22
Abstract: 863,076. Refrigerating. BRITISH OXYGEN CO. Ltd. Aug. 17, 1959 [Aug. 22, 1958], No. 27055/58. Class 29 [Also in Group XXVI] A bay 21 for apparatus in an aircraft is cooled by the evaporation under pressure of nitrogen which is then expanded to do useful work. As shown, nitrogen is expelled under pressure from the lower part of a reservoir 11 through a pipe 16 by heating the reservoir, as by an electric heater 15, and flows through a first heat exchanger 20 in heat exchange with bay 21 so that it is vaporized. The high pressure vapour then expands in a turbine 25 driving e.g. an electric generator 26, the cold gas then flowing through a second heat exchanger 28 also serving to cool the bay 21. A control 22 operates a valve 18 in pipe 16 to maintain constant the pressure in exchanger 20. In a modification, the nitrogen from exchanger 20 is led to a propelling nozzle of the aircraft.
Patent GB-1299057-A (GB)
Title: Improvements in electrical machines
IPC: H02K23/26
Filed: 1971-04-19
Abstract: 1299057 Dynamo-electric machines KOLLMORGEN CORP 19 April 1971 [8 April 1970] 27061/71 Heading H2A A D.C. machine has a field with 2p poles where p is an integer greater than one, an armature with 2n coils where n is an integer greater than p and is not an integral multiple of p, and a commutator having 2n segments, diametrically opposite armature coils being connected in series between two commutator segments and diametrically opposite commutator segments being interconnected. Fig. 1 shows diagrammatically a four-pole machine with six armature coils 1-2...11-12 and six commutator segments a...f. Each coil spans about 2/3 of a pole pitch and pairs of coils, such as 1-2 and 7-8, spaced apart by a double pole pitch, are connected between spaced segments such as a and e. A pair of brushes B is provided spaced apart by a pole pitch and interconnections are made between the segments as shown. Other four-pole machines with ten coils and segments and fourteen coils and segments are illustrated, Figs. 2 and 3 (not shown). The machine may have a cylindrical air gap with preferably a permanent magnet field, Fig. 4 (not shown), or a planar air gap, Figs. 5 and 7. The rotor disc 40, which carries six coils 61 ... 66 connected to a commutator C on one face of the disc, may consist of ferrite material or an insulating material mixed with magnetic powder and is located between a ferrite ring 20 formed with permanent magnet poles, or a ring carrying salient poles, and a soft-iron plate 21 or a further magnetized ferrite ring. Diametrically opposed coils may be constructed as a single coil as shown in Fig. 8 for example at 70-71, the central portions of the coils being superimposed. In this case, a separate carrier disc is unnecessary, the coils being moulded in thermosetting resin together with the commutator. The coils may comprise printed circuit spirals on separate, thin discs which are laminated together to form the rotor.
Patent GB-1287843-A (GB)
IPC: F16F9/48
Filed: 1970-06-04
Abstract: 1287843 Shock absorbers with resilient diaphragm piston valves L BERSANI T CINOTTI W SARTI A MUNERATI and R GUIDASTRI [trading as LAVORAZIONI INDUSTRIALI MECCANICHE DEL SAVENA]. 4 June 1970 [9 June 1969] 27070/70 Heading F2S A shock absorber comprises a cylinder, a piston 8 movable in the cylinder and having a bore 6 communicating with one working face, an imperforate resilient diaphragm 10 connected to that working face and completely overlying the bore 6 and a passageway 3, 4, 5 from the space C in the cylinder to the bore 6, movement of the piston in the direction indicated by the arrow 2 causing fluid in the space C to flow through the passageway 3, 4, 5 and into the bore 6 (on its way to the space D via diaphragm 9) thereby reducing the difference in fluid pressure on opposite surfaces of the resilient diaphragm 10. These are three bores 6 opening into an annular recess 7 in the piston, each bore having an associated passageway. In Fig. 4 (not shown) the piston is made from two identical parts.
Patent GB-158361-A (GB)
Title: Improvements in or connected with electric power generating units
IPC: F02B63/04
Filed: 1919-11-04
Abstract: 158,361. Russell, E. L. Nov. 4, 1919. Dynamos, driving and cooling; cores and yokes. - An internalcombustion engine 20 and a dynamo 57 are mounted upon the same bedplate with a combined fly-wheel and cooling-fan 80 between them. The fan is divided by a central disc 80 and draws air through the dynamo casing and around the fan casing. The armature shaft 66 and crankshaft 34 are secured together by an axial bolt 68 with a conical washer 72 engaging a recess in the crank disc 36 and secured by nuts 71. The shaft 66 is also dowelled to the boss 64 of the fan. The water tank 86 is supported by sheet metal plates 87 which mav form an instrument chamber. The pole-pieces 152 of the field magnets are united to the casing 51 during the casting of the latter.
Patent GB-408264-A (GB)
Title: Improvements in telephone systems
IPC: H04M1/58
Filed: 1932-09-30
Abstract: 408,264. Anti - - side tone circuits. LOWE, J. P., 7, Montpelier, Edinburgh. Sept. 30, 1932, No. 27171. [Class 40 (iv).] An anti-side-tone circuit comprises a group of pairs of windings A associated with the line and a second group D associated with the receiver R. The secondaries of one group are connected to the primaries of the other to form a closed circuit with which the transmitter T is associated by means of a transformer C, the secondary of which is connected between intermediate points of the combined line secondary and the combined receiver primary. Two adjacent line primary windings or, as shown, secondary windings, are wound in opposition so that when current is received from the line an E.M.F. is induced across only one half of the combined line secondary and a resultant current flows in the receiver. When the transmitter is energized no resultant current flows in the receiver circuit, but the current in one half of the combined line secondary induces currents in the line. Each primary and secondary pair may be a separate transformer. The degree of reduction of side-tone may be made adjustable by the provision of tappings on the transformer D for connection of the secondary of transformer C or of variable resistances or inductances. In a modification, the invention is applied to an operator's set. The transformers C, D may be transposed.
Patent GB-698095-A (GB)
Title: Improvements in horticultural buildings and structures
IPC: A01G9/14
Filed: 1950-11-08
Abstract: 698,095. Garden frames. VANE, M Nov. 5. 1951 [Nov. 8, 1950], No. 27250/50 Class 20(i) A building, e.g. a shed, has projecting from one or more of its exterior side or end walls one or more cold frame structures 12 each adapted to contain a tray 21 for plants. The frames 12 comprise bodies 14 with glazed tops 15, e.g. hinged to the body 14, the sides 18 of the bodies 14 having horizontal ribs 19 adapted to be engaged by bearers 22 on the trays 21, which may be electrically heated, e.g. at 24. The height of the trays 21 in the frames 12 can be adjusted by selecting appropriate ribs 19. Alternatively, the trays 21 may rest on adjustable legs on the base 23 of the frames 12, which are supported cantilever-wise by the wall of the shed and project through an opening therein.
Patent GB-1434870-A (GB)
Title: Coupling for liquid and vapour flow in opposite directions
IPC: F16L37/252
Filed: 1974-06-20
Abstract: 1434870 Pipe couplings FORD MOTOR CO Ltd 20 June 1974 [5 July 1973] 27316/74 Heading F2G A pipe coupling comprises a male component 11, e.g. a fuel pump nozzle, and a female component 12, e.g. an inlet assembly for an automotive fuel tank, which can be locked together by the insertion of tabs 36 on the male member through corresponding recesses 34 on the female and by engaging these tabs on cam surface 37, once they have passed through the recesses, to compress a sealing ring 17. The nozzle comprises a larger diameter pipe 13 and a concentric smaller diameter pipe 14 which extends beyond the end of the larger diameter pipe by a predetermined distance. A collar 16 is secured to the larger diameter pipe providing an abutment against which is secured the resiliently compressible sealing ring 17. The female component 12 includes a generally funnel shaped inlet insert 18 which includes a cylindrical portion 21 continguous with the inner surface of the filler 19 and a generally oval downstream portion 22 which includes four axially extending inwardly protruding ridges so as to permit the central reception of the smaller diameter pipe and to preclude its off-centre reception. A spring loaded door 24 is pivotally attached to the downstream end of the funnel 18 sealed in its closed position by lip seal 28. The female component 12 includes a plate 29 attached to the mouth of inlet pipe 19 and to the vehicle body 31. The plate 29 includes an orifice 32, formed by a downstream extending flange 33, to receive the larger diameter pipe 13. A pair of diametrically opposed notches 34 interrupt the circumference of the opening 32 and flange 33 and are constructed to receive a pair of diametrically opposed tabs 36 extending radially outwardly from the larger diameter pipe 13. The downstream edge 37 of the flange includes a pair of cam surfaces engageable with the backside of the tabs after they have passed through the notches.
Patent GB-1475957-A (GB)
Title: Electromagnetic compensation weighing apparatus
IPC: G01G7/06
Filed: 1975-06-27
Abstract: 1475957 Measuring weight electrically METTLER INSTRUMENTE AG 27 June 1975 [6 Dec 1974] 27330/75 Heading GIN The displacement of a scale pan 10, Fig. 1a, by a mass m to be weighed is sensed by a differential capacitor 24 connected in a bridge network to produce a proportional current through coil 14 which, in conjunction with permanent magnet 18, restores the scale pan 10 substantially to its neutral position. The displacement signal developed in bridge network 30, Fig. 4, is fed through a proportional-integral-differential network 52 which reduces the effective amplitude of signals within a middle frequency band, and incorporates two reverse-connected parallel diodes 66, 66 which effectively eliminate small amplitude signals.
Patent GB-749715-A (GB)
Title: A novel derivative of pantetheine and the manufacture and uses thereof
Inventor: OSBOND JOHN MERVYN
IPC: C07C233/46
Filed: 1953-10-07
Abstract: The invention comprises S-benzyl pantetheine and its preparation by reacting a compound of the general formula <FORM:0749715/IV(a)/1> (wherein R is an alkyl or aralkyl group) with b -amino-ethyl benzyl sulphide.  This process may be combined with the further step of hydrogenolysing the product with sodium in liquid ammonia to obtain pantetheine or, where special precautions to avoid oxidation are not taken, pantethine, or with the further step of treating the S-benzyl pantetheine with dibenzylchlorophosphonate and eliminating the benzyl groups from the resulting S-benzyl-pantetheine 41-(dibenzyl phosphate) by hydrogenolysis with sodium in liquid ammonia to obtain pantetheine 41-phosphate.  The anhydride of the above general formula, which is stated to be unstable and is therefore preferably used in the medium in which it is formed, may be prepared by reacting a trialkylammonium or N-alkyl morpholinium salt of pantothenic acid with an alkyl or aralkyl chloroformate.  The reaction of the anhydride with b -amino ethyl benzyl sulphide is preferably carried out in a solvent, such as dimethyl formamide or tetrahydrofuran, and it is preferred to use a solution of the sulphide, for example in chloroform.  In a modification of the process the reaction is carried out in the presence of a molar equivalent of a trialkylamine.  The reaction temperature is initially at 0 DEG  C. or below and the reaction is completed at room temperature.  Examples illustrate each of the above processes and in addition describe (1) the formation of the triethylamine, tributylamine and N-methyl morpholine salts of pantothenic acid, itself obtained from calcium pantothenate and oxalic acid; (2) the successive passage of the reaction mixture from the hydrogenolysis of S-benzyl pantetheine through cation and anion exchange resins, or its passage through a cation exchange resin followed by elution from a column of alumina; (3) the preparation of dibenzyl chlorophosphonate from dibenzyl phosphite and N-chlorosuccinimide and the isolation of pantetheine 41-phosphate as the barium or calcium salt after purification of the reaction mixture of S-benzyl-pantetheine-41-(dibenzyl phosphate) by passage through a cation exchange resin.
Patent GB-653259-A (GB)
Title: Non-linear electrical condensers and circuits incorporating such condensers
Filed: 1947-10-16
Abstract: 653,259. Variable condensers. WESTERN ELECTRIC CO., Inc. Oct. 16, 1947, No. 27763. Convention date, Oct. 18, 1946. Drawings to Specification. [Class 37] [Also in Groups XL (b) and XL (c)] A non-linear condenser has a dielectric of ceramic, e.g. BaTiO 3 , the dielectric constant of which varies with an applied potential, and means for applying a D.C. biassing potential, the polarity of which is intermittently reversed. The ceramic can be a titanate of any metal in the second periodic group. Specification 627,113 is referred.to.
Patent GB-730089-A (GB)
Title: Improvements in or relating to the electro-chemical deposition of lead
Inventor: WRIGHT OSWALD
IPC: C23C18/54
Filed: 1951-11-27
Abstract: 730,089. Electrodeposition of lead. NAPIER & SON, Ltd., D. Nov. 20, 1952 [Nov. 27, 1951], No. 27782/51. Class 41. In a method of depositing lead on to a metallic article, the article is placed in an electrolytic solution containing a soluble lead compound, and an electrically conducting contact element of a metallic substance which is positive relative to lead in the electro-motive series, is placed in contact with the electrolyte and with the article. The electrolyte may be a solution of lead fluoborate, fluoboric acid and boric acid, and may contain glue. Alternative solutions may contain sodium plumbate or plumbite, or lead acetate. The contact element is preferably aluminium or magnesium or an alloy containing a substantial proportion of either of these metals, but may be cadmium or zinc. Iron or steel may be coated with lead by the method described, and the article may first be plated with tin by a contact process.