baber/WOPTO huggingface dataset:
Patent GB-146211-A (GB)
Title: Improvements in spherically, chromatically and astigmatically corrected objectives consisting of four lenses
IPC: G02B9/12
Filed: 1920-06-26
Abstract: 146,211. Zeiss, C., [Firm of]. Oct. 15, 1917, [Convention date]. Lenses.-The lens I of a photographic objective of the type described in Specification 13061/02, [Class 98, Photography], is made of glass having a refractive index of not more than 1.57 for sodium light. The objective comprises a collective lens I facing the object, a dispersive lens II separated from the lens I by an air space, and a pair of lenses III, IV joined in a collective surface. The power of the facing surfaces of the lenses I, II is negative. Optical data are set forth in the Specification.
Patent GB-515803-A (GB)
Title: Improvements in or relating to coated sheet materials
IPC: B29C37/00
Filed: 1938-06-13
Abstract: 515,803. Bonding rubber to nitro-cellulose. McGILL, J. H., TATTERSALL, H. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 13. 1938, No. 17557. [Class 70] [Also in Group VIII] A nitrocellulose coating is secured to rubber or rubberized sheet materials by one or more bonding coats consisting of or containing polyvinyl phthalate. Rubber surfaces of poor adhesion may be provided with a priming coat, e.g. of highly-filled rubber latex or vulcanized rubber composition or a'thin unvulcanized coating of rubber solution or latex with or without fillers. The polyvinyl phthalate may be applied in solution in an organic solvent and a softening-agent may be included. The coating may be baked after drying. The products are suitable for upholstery &c. Examples are given of the application of a toluene solution of polyvinyl phthalate, with or without methyl cellosolve phthalate as softening-agent, calendered rubber sheet, rubberized fabric and latex-impregnated paper,the rubber sheet being primed with a solution of rubber in toluene.
Patent GB-446315-A (GB)
Title: Selvedge-guiding devices for fabrics in the open width
IPC: D06C3/00
Filed: 1935-06-19
Abstract: 446,315. Feeding webs. DUNGLER, J., Thann, Haut-Rhin, France. June 19, 1935, No. 17586. [Class 100 (i)] Selvedge - guiding devices for fabrics comprise for each selvedge a pair of rollers mounted in a pivoted frame, adapted to maintain the rollers at the desired angle to the path of traverse of the fabric and substantially in equilibrium, and a plurality of members borne by the frame and in such form and relationship that a selvedge sufficiently engaged between them as a result of its deviation from the correct path will acquire an undulatory form and by its resultant pull upon the pivoted frame will give rise to a lessening of the effect of the angle of the rollers to the path of traverse of the fabric. Each guide comprises a counterweighted frame 2 pivoted on a shaft 3, the pivotal movement being limited by stops ; the frame carries rollers 4, 6, preferably formed in two independently rotatable parts, and the fabric passes between the rollers and also between a feeler 9 and a fixed bar 11 carried by the frame. The feeler 9 is pivoted and is normally held by a spring 10 in its highest position, the fabric normally passing in a straight line between the members 9, 11. When the fabric deviates, it is forced into an undulatory form and exerts a pull on the feeler 9 which moves to its lowest position as determined by an adjustable stop 17. The pivoted frame 2 is displaced by the resultant pull of the fabric in such a way as to reduce the effect of the rollers carried by the frame, and if the deviation is very great the frame may move to such a position as to impart a loosening effect to the selvedge by the reversal of its angle relative to the fabric. The feeler 9 may be replaced by a fixed bar of suitable shape carried by the frame 2.
Patent GB-356750-A (GB)
IPC: H01F38/26
Filed: 1930-06-06
Abstract: 356,750. Transformers. KOCH & STERZEL AKT.-GES., 40, Zwickauerstrasse, Dresden, Germany. June 6, 1930, No. 17611. Convention date, June 7, 1929. Addition to 356,693. [Class 38 (ii).] Relates to a modification of the voltage transformer for use on high tension circuits described in theparent Specification and consists in the high tension winding being placed on two spools 11, 11a, Fig. 1, mounted concentrically on the core 13 ; the outer ends of the winding are connected together and the connections from the inner layers brought out through insulators 17, 17a. In the form shown in Fig. 1 the primary winding 14 is mounted directly on the core and the outer ends of the high-tension windings, the core, the casing and the metallized surface of the spools earthed. Alternatively the primary winding may be in two portions mounted outside the high voltage winding on the two spools and therefrom separated by strips of insulating material. In the form shown in Fig. 3 the transformer is suspended from an insulator 52 and the inner end of the inner hightension winding earthed, the core and casing being at a potential intermediate earth and the high-voltage line. The primary is mounted on the inner spool adjacent the earth inner end of the secondary. In a modification, Fig. 4, of this the inner spool has two insulators 54, 55 which form supports. In a further modification of this the feet are on the outer spool. Specification 356,746 is referred to.
Patent GB-912854-A (GB)
Title: Improvements in or relating to the treatment of fabrics with liquids
IPC: D03J1/00
Filed: 1961-05-15
Abstract: <PICT:0912854/IV (b)/1> A method of applying a liquid, e.g. latex, to a web W, comprises moving the web under tension through a horizontal path, and intermittently projecting against the web, from underneath, a stream of latex substantially the width of the web, in amount and under conditions such that the latex is uniformly applied along the web.  Uniform application is ensured by synchronizing a pump A with the mechanism for moving the web (see Fig. 2, not shown). The pump A comprises an elongated, horizontal piston 21 reciprocating vertically in the lower portion 26 of a chamber having a smaller portion 24 provided with an outlet slot 35 located beneath the path of the web. The pump is disposed in a vessel 27 which contains a constant amount of latex.  Air blowers and a heater are located behind the pump A to dry the web.
Patent GB-1255237-A (GB)
Title: Improvements in the production of styrene polymers of substantially uniform particle size
IPC: C08F257/02
Filed: 1969-04-03
Abstract: 1,255,237. Particulate polymers of styrene and its derivatives. SEKISUI KAGAKU KOGYO K.K. 3 April, 1969 [6 April, 1968], No. 17707/69. Headings C3C and C3P. Particulate polymers of styrene, which may have one or more substituents in the benzene nucleus, α-methyl styrene or chlorinated styrene, are made by forming a suspension in water of particles of the polymer of uniform diameter within the range 0.4-1.2 mm., adding styrene or its derivatives and a suspension polymerization catalyst, initiating polymerization and adding monomer continuously or intermittently at a rate such that the amount of monomer in suspension never exceeds 1.5 times the weight of the polymer in suspension. The suspension may contain an expanding agent, e.g. butane or pentane, which is not a solvent for the polymer or soluble in it and has a b.p. or decomposition point lower than the softening temperature of the polymer. In the examples styrene was polymerized in aq. suspension containing polyvinyl alcohol, copper acetate (to prevent monomer graft-polymerizing with the polyvinyl alcohol), benzoyl peroxide, magnesium pyrophosphate, sodium dodecylbenzenesulphonate, methyl methacrylate, butane, acrylonitrile and/or pentane.
Patent GB-613256-A (GB)
Title: Improvements in cabinet or cupboard structures
IPC: A47B47/05
Filed: 1946-06-13
Abstract: 613,256. Furniture frames. CEN TRUP & CO., Ltd., and BENNER, R. H. June 13, 1946. No. 17755. [Class 52 (ii)] A cabinet or cupboard structure comprises a skeleton frame formed from extruded bars of aluminium or other metal interconnected by inter-fitting joints and having longitudinal grooves in which are fitted panels forming the walls of the cabinet, the panels and grooves therefor forming part of the jointing. Fig. 1 shows a skeleton frame in which three types of bar are used having respectively one, two, or three panel grooves formed therein. All the joints are interfitting, e.g. as shown in Fig. 2, at the joint where the bars 13, 15, 16 meet the end of bar 13 is cut away at its underside as indicated at 13a to fit into the cut-away portion 15b of the bar 15 which as shown also has a groove cut in the end to accommodate a tongue 16a formed by cutting away part of the end of bar 16. When assembled a panel would enter the grooves 13b and 15c while another panel would fit into the other groove of the bar 15 and the horizontal groove of the bar 16 to assist the fixing of the joint. Fig. 1 indicates other joints, e.g. the end of bar 18 enters a cut-away part of bar 13 so that the groove 18b and the horizontal one in bar 13 would take the same panel. Fig. 12 shows a suitable panel comprising thin sheets 26 of aluminium with a filling 27. The joints may be pinned or otherwise secured. Specification 613,255 is referred to.
Patent GB-1434440-A (GB)
Title: Hydraulic device for tensioning the tracks of a tracked vehicle
IPC: B62D55/30
Filed: 1974-04-23
Abstract: 1434440 Track tensioning devices GLAMOX AS 23 April 1974 [26 April 1973] 17755/74 Heading B7H An hydraulic track tensioning device connected to the idler wheel 4 of a tracked vehicle is supplied from an hydraulic circuit 10 so that the track tension is increased when the lower run 2a of the track is travelling in the direction from the drive wheel 3 to the idler wheel 4. In the particular embodiment the drive wheel is at the rear of the vehicle and is connected to a reversible motor 12 supplied by a vehicle driven pump 11. The tensioning device comprises a piston-cylinder-yoke apparatus 8, 8b, 8a, 6 and is connected to a line 15 between the pump and motor. For forward drive the pump supplies the motor via line 14 and the tensioning device is subject to the return pressure P M  in line 15. For reverse travel line 15 is used to supply the motor and the device is subject to the higher supply pressure. A pump 18 and valves 16 and 17 act to maintain the return pressure at a predetermined value. Hydraulic circuitry 30, including an accumulator (33) (Fig. 2, not shown) is included in line 21 to smooth pressure fluctuations and to control pressure supply to the tensioning device.
Patent GB-907342-A (GB)
Title: Improvements in or relating to warp feed devices in multineedle sewing or warp knitting machines
Inventor: KEMTER HEINZ
IPC: D04B27/00
Filed: 1960-05-09
Abstract: 907,342. Sewing-machines. TULLMASCHINENBAU KARL-MARX-STADT VEB. May 19, 1960 [Jan. 26, 1959], No. 17777/60. Class 112. [Also in Group VIII] Roller 11 of a pair 11, 12 of toothed threadfeeding rollers is driven through a permanentlyengaged friction clutch 15, 16 of which member 15, freely rotatable on spindle 14 of roller 11, is rotated by the main shaft of a multi-needle sewing-machine or warp knitting-machine, whilst member 16 is keyed to the spindle, and the clutch is adapted to slip at a torque less than that required to draw off the warp, the remaining draw-off force being supplied by the sewing or knitting tools. The effective length of a spring 20 pressing members 15, 16 together is adjustable by axial adjustment of a plate 22. Roller 12 is rotatable on a mandrel 29 provided with eccentric journals 30, so that the depth of engagement of the roller teeth may be varied.
Patent GB-904550-A (GB)
Title: Screw-holding screw driver
IPC: B25B23/10
Filed: 1959-05-25
Abstract: 904,550. Screwdrivers. VALIULIS, S. B. May 25, 1959, No. 17796/59. Class 61. In a screw-holding screwdriver a centre stem 22, Fig. 2a, is yieldingly rotatable in the shank 6 to grip the screw within its slot 8. The required rotation is produced by endwise movement of the handle 16, Fig. 1, which carries a slotted washer 20 engageable with a helical member 21 attached to the inner end of the centre stem 22. The handle is normally held in the fullyextended gripping position by a compression coil-spring 17 and has a bushing 13 with a hexagonal bore for non- rotatable and sliding engagement with a hexagonal section 11 of the shank 6.
Patent GB-135894-A (GB)
Title: Improvements in or relating to Apparatus for Producing Gases Under Pressure for use in Guns.
IPC: F41A15/10
Filed: 1918-10-31
Abstract: 135,894. Thornycroft & Co., J. I., and Thornycroft, T. Oct. 31, 1918. Ordnance breech mechanism; pneumatic.-Relates to guns in which a cordite or like cartridge is fired in a separate chamber communicating with the gun barrel through an expansion and pressure-reducing chamber as described in Specifications 126,071, 127,879, 128,237, 128,238, 128,970, [Class 9 (ii), Torpedoes &c.], and 129,376 According to the invention, the breech-block e, Fig. 2, for the cartridge chamber a is mounted to slide transversely, and is actuated by a three-armed inverted T-shaped lever h through a link j. At the end of the opening movement, the breech-block strikes the tail-end n of the extractor m. The extracted cartridge o, if not entirely ejected, is gripped by a separate spring q, Fig. 4, or by the breech-block itself, under the returning influence of a spring k; the removal of the cartridge case is then completed by hand. A spring plunger r in the handle h is adapted to bear on the tail-end of the extractor, and thus to be caused to project beyond the head of the handle to indicate when the cartridge is in place and the breech fully closed. The firing- mechanism shown is described in Specification 123,292.
Patent GB-822959-A (GB)
Title: Improvements in or relating to moving stairways
IPC: B66B23/14
Filed: 1957-06-05
Abstract: 822,959. Escalators. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 5, 1957 [June 15, 1956], No. 17844/57. Class 78 (1). In an escalator comprising an endless series of linked steps, the steps are provided with supporting wheels each of which consists of two wheel portions 53, 79 adapted to engage a common track 19, the wheel portion 53 having a resilient tyre 77 of natural or artificial rubber and being of larger diameter than the portion 79, and the arrangement being such that the steps are normally supported and cushioned by the portions 53, i.e. on the straight runs of the escalator, while where an excessive load is imposed on the steps, e.g. where the steps are passing from the inclined part of the escalator on to the horizontal part at the top of the escalator, the portion 79 engages the track 19 to prevent excessive deformation of the tyres 77. The portion 79 of each wheel is of steel, cast iron or a phenolic resin. It may be secured to the steel or cast iron body 69 of the portion 53 or as shown is mounted on an extension 81 of the body 69 for independent rotation, the body 69 being mounted by a ball bearing 59 on a shaft 17 attached to the step. In a modification (Fig. 4, not shown) the wheel portions are separately mounted on the shaft 17 by separate ball bearings. Specification 452,552 is referred to.
Patent GB-1384324-A (GB)
Title: Transmitter receiver apparatus
IPC: G01S13/02
Filed: 1972-04-18
Abstract: 1384324 Pulse radar SPERRY RAND CORP 18 April 1972 [19 April 1971] 17845/72 Heading H4D A radar sensor including a transmitter for very short duration pulses, a receiver including T.E.M. mode, non-dispersive transmission lines, a circuit coupled to the transmission line for producing a stretched unipolar output and utilization means responsive to said output. Pulse generator 1 produces 200 picosecond pulses which are transmitted via a transmission line antenna 2. The pulses also trigger circuits 11,12 which control wave samplers 8, 9. These pass echo signals from transmission line antenna 6 during early and late periods respectively, early signals being attenuated by resistor 10. The echoes are subsequently detected by hot carrier diode 20 and passed to multivibrator 25 which produces a lengthened pulse which drives an echo indicator lamp 30. The detected pulses are also fed to one input of a range indicator 35 which receives at a second input pulses coincident with the transmitted pulse. Lamps 36a-36n indicate the target range. All transmission of signals in the system is accomplished using non-dispersive coaxial transmission line, sustaining only the T.E.M. mode. Wave sampling. Fig. 5.-Echo signals from receiver 6 enter sampler 43 along coaxial cable 15. The centre conductor 15<SP>1</SP> is connected via a diode bridge to the centre conductor of the output coaxial line 37. The diode bridge is normally biased closed by positive and negative potentials through resistors 62, 63. During the open periods, identical positive and negative pulses p(t) unblock the bridge. The pulses are brought from a wave forming unit through apertures in the coaxial line outer conductor. The pulses are formed from a single positive pulse which is split into two channels one of which undergoes a delay # and the other of which is fed to a circulator which has shortcircuited stub of length #/2 connected across it. This produces a negative pulse following the positive pulse at a delay #. The two channels are each fed to diode networks which eliminate negative and positive pulses respectively, thus providing two identical, coincident pulses. The diode networks (Figs. 7a, 7b, not shown), comprise coaxial cables having diodes connected to the centre conductors. The diodes are biased to reject negative and positive pulses respectively thus allowing the correct polarity pulses to pass. Range indication (Fig. 9, not shown).-The object range is indicated by lamps representing range bins. A pulse coincident with the transmitted pulse is fed to a transmission line having spaced along it coupling devices which feed AND gates. The second input to each AND gate comes from another coupling device on a second transmission line which carries echo pulses. The two lines are parallel and fed from opposite ends such that the point at which the two pulses meet and are coupled to the same AND gate is representative of the target range.
Patent GB-219167-A (GB)
Title: Improved machine for automatically filling cartons with granular or powdered materials and for closing same when filled
IPC: B65B1/36
Filed: 1923-07-10
Abstract: 219,167. Ney, A. F. July 10, 1923. Packing and filling granular or pulverulent materials into cartons. -Relates to machines for filling granular or pulverulent materials into cartons closed at the bottom and with flaps at the top, two of which are adapted to interengage by means of a tongue and slot. According to the invention, the material is delivered from a supply hopper to an underlying series of pockets circumferentially arranged and adapted to register in succession with cartons in receptacles on endless chains. As shown, cartons C are fed by hand at the position F, Fig. 1, into bottomless pockets P flared at the opposite edges 2. The pockets are carried by an endless chain 1 passing round sprockets 4, 5, and rest on a base-plate B. The cartons are moved by intermittent steps beneath a reciprocating plate 23, Figs. 2 and 3, tapered at one end. which turns the flaps 17, 18 to the right, Fig. 3, and opens out the side flaps 19, 20, and on the return movement turns the flap 17 of the centre carton in Fig. 3 over to the left, in which position it is held until the carton passes beneath a plate 34, the four flaps 17 - - 20 being then completely open. The plate 34 extends around the sprocket 5 and separates the cartons from measuring pockets 135, Fig. 4, on the flange 104 of a rotating plate 105 on the shaft 7 carrying the sprocket. The material is fed into a hopper 38, and falls into the measuring pockets 135 rotating in synchronism with the carton carriers. The supply hopper is pivoted at 39 and vibrated by a cam with a wavy slot engaging a roller 41. On the arrival of the pocket above a rectangular opening 47 the contents are discharged into the carton by a plunger 48. A stop 63, Fig. 6, rises through a slot 64 in the base-plate to ensure correct registration during the transference. A brush 74, Fig. 1, sweeps through the measuring pockets and removes adhering particles into a container 75. In order to close the flaps of the filled carton, a plate 76, Figs. 1 and 6, turns down the front flap 17 and a reciprocating folder 78 turns down the flap 18. Converging arms 84, 85 turn over the remaining flaps 19, 20 and a finger 86 operates as shown in Fig. 10 to force the peaked flap 20 into the slot 22 of the flap 19. A discharge plunger 93 forces the closed carton out of the machine.
Patent GB-480947-A (GB)
Title: Improvements in or relating to method of and apparatus for separating the constituents of emulsions of the oil-in-water type
IPC: C10G33/04
Filed: 1936-06-27
Abstract: <PICT:0480947/III/1> <PICT:0480947/III/2> The constituents of an emulsion of oil in water, for example oil-contaminated ballast water, are separated by adding or forming in the emulsion a chemical agent capable of promoting adherence of gas bubbles to the oil droplets and bubbling air or gas therethrough so that the oil is swept upward. The chemical added may be an alkaline earth soap or a substance, such as a soluble salt of a fatty acid or modified fatty acid, which will react with substances present in the emulsion to form an alkaline earth soap. Reference is also made to the addition of a sulphate or of a reagent which will form a colloid tending to reverse the form of the emulsion.  The emulsion is passed into a chamber 11, Fig. 1, through a pipe 29 with downwardly-turned end.  Gas supplied through a pipe 20 is distributed as bubbles by a porous member 25. Chemical may be added to the emulsion through a branch 51 of the pipe 29 or may be supplied to the container through concentric spray pipe 57.  The separated water is discharged through a pipe 35 and the oil or water-in-oil emulsion collecting at the top is discharged through a pipe 39.  The gas leaves through a pipe 16. Heat may be supplied to the chamber 11.  The water is kept at about the level 80.  To maintain this level a valve 90 in the pipe 35 is controlled by a solenoid in an electric circuit which is closed by the water rising to the electrode 82.  The circuit may include an electric lamp 84 or bell 87.  Fig. 2 shows modified apparatus in which the emulsion and chemical agent are both delivered by a pump 114 to a perforated pipe 111 extending upwardly from the bottom of the chamber 110 and the gas is also supplied to the pipe 111.  In a further modification the gas is delivered through nipples in a circular pipe which surrounds a pipe rising through the bottom of the chamber through which the emulsion and chemical enter the chamber.  The constituents of water-in-oil emulsion discharged from the upper end of the chamber may be separated under gravity or centrifugally or with heat, chemical or electrical treatment.  Fig. 2 shows an electrical apparatus for this purpose having electrodes 124, 125 between which an electric field is set up by means of a transformer 126.