baber/WOPTO huggingface dataset:
Patent GB-444158-A (GB)
Title: Improvements in and connected with photographic step-and-repeat contact-printing machines
IPC: G03B27/06
Filed: 1935-08-12
Abstract: 444,158. Step and - repeat contact - printing machines. COOPER, E. E., and TROEDEL, A. T., 86, Bay Street, Port Melbourne, Australia. Aug. 12, 1935, No. 22723. [Class 98 (ii)] The negative holders, of which there may be two or more, are carried in chases on brackets mounted on each end of a stout girder resting slidably on a trolley adapted for transverse movement in the machine. The trolley and girder may be moved step-by-step by mechanisms similar to those described in Specification 420,354. The chases are raised and lowered for printing onto sensitive surfaces carried on tables below the ends of the girder by a common lever. To ensure intimate contact during printing, each negative holder is provided with a soft rubber sealing strip having three overlapping tongues. The apparatus consists of a base 20, Fig. 1, carrying a trolley 24 supporting a girder 28 for longitudinal movement thereon. The girder supports chase brackets 29 on which are chase carriers 60 vertically above tables 31 for the sensitive surface. The chases are provided with vertical racks meshing with pinions controlled through links from a common operating lever. The negative holders 61<a>, Fig. 14, are provided with lugs 12 in which are hollow flanged bosses 14 provided with nuts 15. The bosses 14 move freely in the lugs 12 and are engaged by dowel pins 16 entering holes in the chase 61. After the negative holders have been adjusted by the usual register marks, the nuts 15 are tightened thereby locking the holders in position. The holders are provided with rubber sealing strips 4, Fig. 13, having three tongues 5, 6, 7, to provide a vacuum air seal.
Patent GB-1169217-A (GB)
Title: Polyphenylene Polyethers
Inventor: VOORT HENRICUS GEORGIUS PETER
IPC: C10M145/20
Filed: 1966-11-18
Abstract: 1,169,217. Polyphenylene polyethers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 Nov., 1967 [18 Nov., 1966], No. 22806/69. Divided out of 1,169,216. Heading C3R. Polyphenylene polyethers are derived from mixtures of 2,6-dimethyl phenol with one or more 2-methyl-6-alkyl phenols wherein the alkyl group contains at least 8 and at most 28 carbon atoms. The polymers may be obtained by reacting the mixtures of phenols with oxygen or an oxygen-containing gas in the presence of a complex of a copper compound and a nitrogen compound. In an example oxygen is passed into a solution containing 2,6-dimethyl phenol and 2-methyl-6-hexadecyl phenol and a complex obtained from pyridine and cuprous chloride. The alkyl groups in other phenols mentioned are octyl, C 14 -C 18  alkyl and C 22 - C 28  alkyl.
Patent GB-344329-A (GB)
Title: Improvements in devices for attaching skis to the feet
IPC: A63C9/22
Filed: 1930-07-29
Abstract: 344,329. Skis. HOFST�TTER, F., 4, Schlagen, Gmunden, Austria. July 29, 1930, No. 22813. [Class 132 (i).] A device for attaching skis to the feet comprises a strap 11, Fig. 1, and means for connecting it at two points to form a toe loop and also means for connecting one end of the strap to the other at the back of the heel. The means for connecting the strap at the toe comprises two brackets 2, Figs. 1 and 7, formed with tongues 3 inserted in opposite sides of a slot 5 and held fast by prongs 4 forced into the ski by wedges 6. Each bracket is formed with a pair of spaced lugs 8 between which the strap 11 is passed, the rearward lug being rounded at 8<1> to form a guide for the strap. Bent buckles 9, Fig. 6, engage the brackets 2 and are provided with prongs for retaining the strap in position. The strap ends are connected by a curved lever clasp 10 to the frame of which one end of the strap is connected while the other is connected to a buckle 13 hinged to the lever of the clasp.
Patent GB-778053-A (GB)
Title: Improvements in and relating to methods and apparatus for working electrically conductive materials by electro erosion or electrolysis
Inventor: RUDORFF DAGOBERT WILLIAM FRITZ
IPC: B23H9/04
Filed: 1952-09-11
Abstract: 778,053. Removing metal by electrical discharge. SPARCATRON, Ltd. Oct. 23, 1953 [Sept. 11, 1952], No. 22835/52. Class 83 (4). [Also in Groups XXXV and XXXVI] In working electrically-conductive material by electro-erosion or electrolysis a workpiece is supported for rotation between a rotating electrode and a support member or members and rotation of the workpiece is induced by rotation of the electrode or of the support member or members. In one embodiment a workpiece 1 is supported by rollers 6, 7. Roller 6 of insulating material is mounted on levers 8 and is urged by a spring 10 against a disc or cylinder electrode 2'so that the roller 6 and hence the workpiece are rotated. The insulated roller 7 is mounted on a lever 13, the position of which and thus of the workpiece is determined by the action of a solenoid 18, in the electrode-workpiece circuit, opposed by a spring 15. A spring-pressed bush 20 supplies current to the workpiece and a pipe 25 supplies dielectric fluid. The roller 7 may be inclined to traverse the workpiece and the position of the roller 7 may be regulated by a motor. The workpiece 1, Fig. 2, supported by an electric contact blade 31 may be rotated between a hollow electrode 32 having a porous or perforated non-conducting casing 33 which bears on the workpiece and a roller 30 driven at a lower peripheral speed than the electrode so that with the roller 30 surface having a higher friction co-efficient some slip occurs between electrode and workpiece resulting in abrasion. Electrolyte is fed to the hollow electrode to flow through the casing and is fed through the pipe 25. The electrode may comprise a pair of rollers in tandem, the workpiece being in contact therewith and axle or bearing journals may be machined by the method described. The use of spark and/or arc discharges is referred to. Specification 637,872 is referred to and Specifications 756,727, 780,242 are referred to in the Provisional Specifications.
Patent GB-406928-A (GB)
Title: Improvements in the methods of preparing and feeding fabrics which are to be printed
IPC: B41F15/24
Filed: 1933-08-16
Abstract: 406,928. Printing-machines. LEONARD, M. A., 2, Impasse de la Gare, Cuire, Rhone, France. Aug. 16, 1933, No. 22932. Convention date, Oct. 20, 1932. [Class 100 (ii).] In a machine for printing on fabrics, the fabric from a roll 6 is attached to a blanket 1 by means of glue or other adhesive which is applied to the blanket by a roller, or a layer of gum arabic is applied by powdering. The fabric is secured to the blanket by means of pressure rollers 7 one of which is heated, so that the glue is dried immediately and the fabric is securely attached to the blanket before reaching the printing table where the fabric is printed by the screen or other method. For screen printing rocking squeegees actuated by inclined ramps are employed in conjunction with the screen 12. A second endless blanket 11 may support the blanket 1 during the printing operation, and the blanket 1 may be fed continuously with a printing-device 'operating intermittently. In this case gravity rollers 8 moving in slots 10, and an upper roller 8, to which is attached a counterweighted chain 10 moving over an upper pulley, take up slack in the web. After receiving one or more impressions the blanket 1 and fabric are passed over drying drums 13, and the blanket is separated readily from the fabric which is delivered at 14. After the fabric is glued to the blanket it may be wound into the form of a roll A and stored before the printing operation. The roll A is mounted in a carriage which is moved in the direction of the arrow F<1>. The free end of the web is passed over a spur B, and is held fixed while the carriage moves over the printing-table.
Patent GB-725099-A (GB)
Title: Improved adjustable-capacity compressor for refrigeration systems
IPC: F04B49/16
Filed: 1953-08-21
Abstract: 725,099. Pistons. GENERAL MOTORS CORPORATION. Aug. 21, 1953 [Sept. 3, 1952], No. 23055/53. Class 122 (1). [Also in Group XXVIII] A plug 37 which is axially adjustable in the piston 35 of a compressor to vary the clearance volume has a circumferential groove 40 in which is fitted a flexible ring 39 of rubber-like material to retain the plug in its adjusted position. Specification 693,082 is referred to.
Patent GB-466198-A (GB)
Title: Improvements relating to containers of variable volume
IPC: B65D81/24
Filed: 1935-08-16
Abstract: 466,198. Cans, drums, &c. GOSCHL, J. Aug. 16, 1935, Nos. 23067 and 23068. Void. Convention dates, Aug. 17, 1934 and Dec. 15, 1934. [Classes 21 and 66] A container for paint &c., having a lid 2, Fig. 1, seating in a coned mouth-ring and held down by a screw 12 rotatable in the lid and traversing a bar 15 engaged under hooks 14 upstanding from the ring, is provided with a movable flanged bottom 3 having fixed or detachable means for fixing the bottom in any desired position by pressing the flange into light engagement with the wall of the container. In the form shown in Figs. 1, 2 the pressure means comprises outer and inner segmental rings 5, 6 interconnected by pivoted push-rods 7, the faces 8 of the inner ring segments being engageable by a cam 9 so that rotation of the cam in one direction urges the segments outwardly effecting the tightening of the bottom against the wall. Scrapers 10 are provided on the upper face of the bottom. It is stated that the cam and the push-rods in this construction may be replaced by screw-bolts. In the form shown in Fig. 3 the edge of the bottom consists of a split rubber &c. ring 27 stiffened by a spring 24 carrying a wedge 23 co-operating with the tapered slot 22 in the ring. The ring is pressed against the container wall by means comprising four push-rods 16, 20, formed with rack teeth 17 engaged by a pinion 18 rotatable by means of a key. Fig. 5 shows a modified construction comprising two or more wooden &c. segments 21, 21<1>, carrying a rubber &c. packing strip 26, T-shaped springs 30, 30<1> being interposed between the segments, which are forced outwardly by push-rods 16, 20 operated as in the previous construction.
Patent GB-202844-A (GB)
Title: Improvements relating to steel barrels
IPC: B65D8/14
Filed: 1922-08-25
Abstract: 202,844. Challen, W. B., and Taylor & Challen, Ltd. Aug. 25, 1922. Butt joints. - The two halves a of a collapsable steel barrel are secured together by means comprising an outer socket d, which encloses flanges b on the parts a, and an inner ring e which is pressed by studs g against the flanges b. The stud hole is drilled in both socket and ring, the portion in the ring being plain whilst that in the socket is tapped to engage the screwthread of the stud. The Provisional Specification states that the socket d and ring e may be turned in one piece and separated by parting after the stud holes have been tapped, the threads in the portions of holes in the ring being removed by milling.
Patent GB-517869-A (GB)
Title: Improvements relating to machines for cutting substances such as vegetables, hard fruit and the like, applicable to analogous purposes
IPC: B26D3/18
Filed: 1938-08-06
Abstract: 517,869. Cutting and slicing vegetables &c. ELDRED; H. R. Aug. 6, 1938, No. 23248. [Class 5 (i)] In a machine for cutting, e.g., into small cubes, vegetables, hard fruit &c. the vegetables &c. are first forced by a crank-operated piston or plunger through a grid or grating, and are then severed by a transverse cut by means of blades mounted on a shaft which is geared to the crankshaft which operates the piston or plunger. A casing a is provided with a hopper b and a cylindrical chamber c in which reciprocates a piston d operated by a connecting-rod d', crank d<2>, toothed wheel e, and worm f from a shaft f<1> which may be driven from a pulley h and an electric motor i. The chamber c terminates in a flanged opening k on which is screwed a bracket l carrying a series of knives l<2> forming a grid, through which vegetables &c., e.g., potatoes, are forced in lengths to to be cut transversely by the blades of a rotary cutter m on the shaft f<1>, In a modification, the potatoes &c. during the forward movement of the piston d are gripped by the ends of rods slidable through the piston under the control of a cam on the crankshaft.
Patent GB-962984-A (GB)
Title: Gas and liquid contact apparatus
IPC: F28F25/06
Filed: 1960-07-04
Abstract: 962,984. Cooling towers. C. G. MUNTERS. July 4, 1960 [July 6, 1959], No. 23254/60. Heading F4K. [Also in Division B1] The packing comprising alternate plain and corrugated sheets 14 and 16, e.g. of paper, cellulose or asbestos, of a cooling tower is wetted by jets of water 28 from a supply duct 26 rotatably mounted above the packing and provided with a screen 36 which covers that portion of the packing which has just been sprayed with liquid and prevents for a short time the upward flow of air through the passages thereof, the jets 28 serving to rotate the supply duct. Specifications 837,601 and 950,448 are referred to.
Patent GB-407385-A (GB)
Title: Improvements in optical valves
IPC: G02B27/28
Filed: 1932-08-19
Abstract: 407,385. Light valves. WALTON, G. W., 2, Dean Street, Soho, London. Aug. 19, 1932, No. 23319. [Class 49 (iii).] By means of a double-image prism 3, such as a Wollaston prism, two images of a lightsource 1 are formed in the two spaces between the three electrodes 6, 7, 8 of a Kerr cell. Two images of each image are formed by means of a further double-image prism 11. The two inner images are arranged to coincide at 19 and to wax and wane together under the influence of electric potentials applied to the Kerr cell. The two outer images are masked off by the screen 13. Instead of a Wollaston prism, prisms of Iceland spar (Fig. 6, not shown) may be used. The Kerr cell 5 may be replaced by a Kerr cell of grid type, the light passing in a parallel beam through the gaps between a number of plates (Fig. 7, not shown) ; or the Kerr cell may be replaced by a Faraday cell comprising a heavy glass block surrounded by an electromagnetic coil (Fig. 8, not shown).
Patent GB-780843-A (GB)
Title: Improvements in or relating to electrical capacitors
IPC: H01G5/38
Filed: 1952-09-17
Abstract: 780,843. Variable capacitors. GENERAL ELECTRIC CO., Ltd., and HARROLD, A. E. Dec. 17, 1953 (Sept. 17, 1952], No. 23346/52. Class 37. A capacitor comprises one or more sets of movable plates on a structure rotatable about an axis, and a plurality of sets of fixed plates which project outwards from supports disposed about the said axis while the movable plates project inwards from supports on the rotatable structure. In order to reduce stray capacitance between the sets of fixed plates a port with a conducting surface embracing the axis of rotation of the structure is provided. Four independent sets 1 of fixed plates in the form of sectors of annuli are mounted on segmental metal supports 4 fixed to an insulating base 5. The segmental supports enclose an earthed metal tube 10 fixed to the base, in which rotates a shaft 6 bearing at its upper end an insulating plate 7 to the periphery of which are fixed metal rods 8 carrying plates 2, and a metal counterbalance weight 11. The sets of plates subtend angles of 72 degrees and are closely grouped to leave an angular gap of similar size in which an earthed metal screen is fixed. The device may be used in conjunction with an attenuator network, tapping points on which are each connected to a different set of fixed plates, an output variable with position being taken from the moving set of plates. Alternatively several parallel attenuators are used the outputs being connected to different sets of plates. In a further arrangement two sets of fixed plates are associated in this way with a tapped or parallel attenuator and with one movable plate the output from which is fed to a further network or networks associated with the other sets of fixed plates, which are in turn associated with a second movable plate rotatable with and mounted at an angle of #/5 to the first from which the final output is taken.
Patent GB-669133-A (GB)
Title: Improvements in or relating to fire grates
Inventor: DUNLOP ADAM
IPC: F23H9/00
Filed: 1949-09-09
Abstract: 669,133. Stoves. CARRON CO., McLELLAN, H., and PATRICK, A. July 27, 1950 [Sept. 9, 1949], No. 23368/49. Class 126 In a firegrate for a domestic cooker or stove having a housing containing the grate proper 1 and an ashpit and provided with means for shaking the grate within the housing, the grate 1 is formed with lugs 3 engaging guides 2 projecting from the sides of the housing and abutments 4 project inwardly from the housing below the level of the guides 2 so that when the grate is drawn forward it may be swung about the lugs 3 until the back of the grate comes against the abutments 4 and when the grate is drawn further forward the lugs 3 leave the guides 2 and the grate is free to drop into the ashpit. The grate 1 has a lug 6 depending from the front and provided with a slot for engagement with a shaker inserted through a slot 8 in the fire door 9. A cover 10 is provided for slot 8. To clear the grate, the fire door 9 is opened, and the grate is drawn forward till the back of the grate clears the rear supports 11, and then tilted about the lugs 3. The guides. 2 are below the normal level of the grate, and the lugs 3 project downwardly from it.
Patent GB-618419-A (GB)
Title: Improved distillation method
IPC: B01D3/00
Filed: 1945-09-11
Abstract: <PICT:0618419/III/1> <PICT:0618419/III/2> A pure component is separated from the vapours evolved in the distillation of mixtures of two immiscible or partially miscible liquids by subjecting the vapours to primary condensation by means of the cooling action of a liquid having a boiling temperature equal to or nearly equal to, the dew point of the particular vapour mixture (referred to as "the eutectic") which, for a given pair of such liquids, has the minimum dew point.  The vapours produced in distillation tower 1, Fig. 1, pass through pipe 2 into tubular bundle 3 where they are indirectly cooled by a liquid having a boiling point a few degrees lower than the dew point of the eutectic.  The condensate from this primary condenser is withdrawn through pipe 4, and the eutectic passes out through pipe 5 into secondary condenser 6.  The condensate from the latter flows into decanter 8 where it separates into two layers; one of which is returned to the tower as reflux, while the other is withdrawn from the system through pipe 10.  The vapours of the cooling medium, evolved from bundle 3, are condensed in receiver 12 by means of auxiliary condenser 14; the condensate being re-circulated to the bundle through pipe 13.  The pressure may be modified, if desired, either in the cooling circuit or in "the cooled circuit".  Some of the condensate of the eutectic itself may be used, either as an emulsion, or by decanting and employing the component of lower boiling point only, as the cooling liquid. The auxiliary condenser 14 is then unnecessary.  The top of column 1, Fig. 3, contains both the primary condenser 3 and the secondary condenser 6, connected as shown; and the secondary condensate, collected on plate 21, is passed through pipe 7 to decanter 8 from which the lower liquid layer is sent, through line 17, to act as cooling liquid in primary condenser 3, any excess liquid being withdrawn through pipe 18.  The vapours from this cooling liquid rise through space 22, mix with the eutectic, and are condensed therewith in bundle 6.  The primary condensate is collected on plate 20, and withdrawn through pipe 4.  If desired, the size of plate 21 may be increased so as to produce a hot decantation thereon, in which case the decanter 8 is omitted.  The method may be used to separate mineral oil from steam, and also for solvent recovery.
Patent GB-1153609-A (GB)
Title: Varactor Diode
IPC: H01L29/00
Filed: 1968-05-17
Abstract: 1,153,609. Semi-conductor devices. ITT INDUSTRIES Inc. 17 May, 1968 [23 May, 1967], No. 23498/68. Heading H1K. The overall inductance of a varactor diode is adjusted by providing the diode with leads having different inductances per unit length and longer than required and trimming them to give the required inductance combined with the required overall length of diode and leads. The leads 9, 10 may be cylindrical wires of different constant diameter or at least one may taper along its length, or they may be in the form of tapes of different rectangular crosssections either constant or at least one tapering along its length. Alternatively, one lead is cylindrical and the other is tape shaped. In all cases the leads may be given a sinusoidal or similar meandering shape. The diodes are suitable for use in cavity resonators as in Figs. 8, 9 and 10, not shown.
Patent GB-532056-A (GB)
Title: Safety seal for fur skins and the like
IPC: G09F3/03
Filed: 1939-08-15
Abstract: 532,056. Seals. CANTER, M. Aug. 15, 1939, No. 23529. [Class 146 (ii)] A safety seal for fur skins &c. comprises a strip 1 of flexible metal with a socket 2 at one end and a post 3 at the other end, the metal adjacent either the post or socket being reduced by a channel 3x on the inner face of the strip so that any attempt to open the seal will cause a tell-tale breakage. The channel is of substantially semicircular form.
Patent GB-336694-A (GB)
Title: Improvements in or relating to steam boilers or water heaters
IPC: F24H1/40
Filed: 1929-07-31
Abstract: 336,694. Kilburn, B. E. D., (Austin Heat Transference Corporation). July 31, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 15, 1930]. Water-tube boilcrs; casings. - A steam boiler comprises water chambers 1, 5 arranged below and above a combustion chamber and connected together by water tubes 6, 15, and a casing supported by the water chambers and having at least one side hinged or otherwise supported to permit access to the interior and the escape of gases in the event of an explosion in the combustion chamber. The upper chamber 5 is supported by four vertical corner tubes 6. The tubes 15 rise vertically along the sides of the combustion chamber and then bend backwards and forwards above the furnace to their connection with the upper chamber 1. The tubes are connected to the water chambers by screw unions. Each wall of the casing consists of a metal sheet 37 lined with asbestos or other heat-insulating material held in place by wire mesh or the like and cross wires. The side walls 31, 32 are hinged at their upper edges to the top 28. The combustion gases pass through tubes 50 cast in the upper water chamber and through a flue 51. In a modification, the tubes are, connected to the water chambers by tapering joints, the chambers being held together by vertical bolts, and the walls of the combustion chamber extend around the outer edges of the lower water chamber and outside the tubes 15. In another modification, the lower water chamber is annular and the boiler is heated by removable gas burners.
Patent GB-1351905-A (GB)
Title: Dialysis
IPC: B01D17/00
Filed: 1972-05-19
Abstract: 1351905 Dialysis CONSIGLIO NAZIONALE DELLE RICERCHE 19 May 1972 [25 June 1971] 23590/72 Heading B1X Dialysis apparatus comprises two compartments communicating by means of an orifice adapted to receive thereacross a dialysis membrane, and in each compartment a thermometer, a stirrer and heating or cooling means for the liquid. In the dialysis process the liquids are maintained at mutually different temperatures and in continuous circulation so that the total thermal drop is confined to the thickness of the membrane.