baber/WOPTO huggingface dataset:
Patent GB-275449-A (GB)
Title: Improvements in or relating to incandescent cathodes
IPC: H01J1/15
Filed: 1926-10-27
Abstract: 275,449. Wade, H., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 27, 1926. Addition to 274,981. Drawings to Specification. Vacuum tubes.-In a cathode according to the parent Specification the helically-wound wire consists of nickel. The adjacent turns of the helix may be in contact or spaced apart. A layer of copper oxide may be interposed between the nickel and the alkaline-earth oxide.
Patent GB-689335-A (GB)
Title: Overcoat
IPC: C04B5/06
Filed: 1950-11-06
Abstract: 689,335. Coats. POONS, S. Nov. 6, 1950 [Sept. 5, 1950], No. 27005/50. Class 141. An overcoat has secured to the interior at waist level two pieces of material 4, 5 which may be either folded and retained out of sight or may be lowered and joined together by fastenings e.g. sliding fastener components 11a, 11b, 12a, 12b along their opposite edges to constitute trouser legs, provision also being made for joining the edges of the pieces 4, 5 from waist to crutch in front e.g. by sliding clasp components 10a, 10b. The pieces 4, 5 may be secured by seams 6, 7 leaving the parts 8, 9 free to allow the coat to be worn open. Fasteners 19 may be provided to secure the pieces 4, 5 in the folded position, and these pieces may form part of the coat lining.
Patent GB-1480063-A (GB)
Title: Control circuits for electrically driven vehicles
IPC: B60L11/18
Filed: 1973-06-06
Abstract: 1480063 Control of D.C. motors LUCAS INDUSTRIES Ltd 31 May 1974 [6 June 1973] 27010/73 Heading H2J The disclosure is identical with that of Specification 1,480,062, but the claims are directed to the control of the amplifier 33 to determine a maximum ON time for the thyristor 15, in the event that the actual motor current does not reach the desired value set by the adjustable resistor 26.
Patent GB-725116-A (GB)
Title: Improvements relating to brickwork for industrial furnaces
IPC: F27D1/06
Filed: 1953-10-02
Abstract: 725,116. Bundling. KONOPICKY, K. Oct. 2, 1953 [Oct. 4, 1952], No. 27160/53. Class 94 (1). [Also in Group XII] Brickwork utilizing basic bricks, e.g. magnesite or magnesite-chrome bricks, and applicable to Siemens-Martin and other industrial furnaces, comprises an assembly of basic bricks 10 separated by iron or steel spacers 11 with iron or steel sheets 12 on the top and bottom of the assembly, bound together by a metal band 13. The spacers comprise sheet or plate metal or wire netting. The invention is also applied to arched units, Fig. 3 (not shown), suitable for use in Siemens-Martin or rotary drum furnaces.
Patent GB-602634-A (GB)
Title: Improvements in or relating to high-frequency amplifying circuits
IPC: H03F1/16
Filed: 1945-10-17
Abstract: 602,634. Valve amplifying circuits. PHILIPS LAMPS, Ltd. Oct, 17, 1945, No. 27203. Convention date, June 22, 1940. [Class 40 (v)] In a push-pull high-frequency amplifier, variation in the input capacity during gain control is prevented by inter-connecting the cathodes and providing ohmic impedance in the anode or screen circuit, the voltage across which is applied to the control grid of the opposite valve of the pair. Fig. 1 shows resistances 13, 14 in the screen-grid circuits coupled to the appropriate control grids by condensers 15, 16. In Fig. 3, the resistances 13, 14 are common to the anode and screengrid circuits, but may be in the anode circuit only (Fig. 2, not shown). In Fig. 4 (not shown), the coupling to the control grid may be via the control grid-screen grid electrode capacity ; in this case the current traversing each resistance is equal to the anode current of one valve less the screen current of the other valve. The ohmic resistance may be constituted by part of the output oscillatory circuit as shown in Fig. 6, which shows a circuit corresponding to that of Fig..4. At very high frequencies, resistances 13, 14 may be replaced by impedances to compensate for any phase-shift which may arise.
Patent GB-225351-A (GB)
Title: Improvements in or relating to apparatus for drying and heating stone, slag, and other materials
IPC: F26B17/14
Filed: 1923-11-01
Abstract: 225,351. Sangwin, W. Nov. 1, 1923. Gravity, material descending by; air and gases, controlling circulation of.-Apparatus for drying stone, slag, &c. comprises a rectangular casing having transverse baffles b, d, e, f, the baffles forming hoods through which hot air or gas is passed and circulated by pipes u, v, w and a fan 3, while cold air can be admitted through controlled openings y. The stone, &c. is fed into the casing through the opening q and passes downwards between the baffles to the discharge hopper j, while vapour formed in the casing is directed bv the baffles d into the spaces c, being finally discharged from the casing through the pipes r. The baffles d may be adjustable. In a modification, the hoods are formed of louvered plates and all except the uppermost one are open at the top. In this case, hot air or gas is admitted only to the lowermost hood, and the dried material is discharged on to a reciprocating plate. The hot gas may be supplied from a furnace disposed at the bottom of the casing.
Patent GB-698266-A (GB)
Title: Improvements in or relating to a method of coating flexible sheet materials and sheet material produced thereby
Inventor: SCHOUTEDEN FERDINAND LEONARD
IPC: C09D127/06
Filed: 1950-11-10
Abstract: Plasticized polyvinyl chloride or copolymer e.g. vinyl chloride-vinyl acetate, compositions in powder form are produced by mixing the polymer with a plasticizer and preferably also a pigment and/or fillers at room temperature, heating, e.g. by infra-red radiation, the mixture and grinding, suitably after cooling.  Plasticizers mentioned are polyethylene glycol di-2-ethyl hexoate, di-2-ethyl-hexyl phthalate, dibutyl phthalate, tricresyl phosphate, alkylaryl phosphates and dimethyl glycol phthalate.  Specified pigments and fillers are ferric oxides, barytes, cadmium red, basic lead carbonate, titanium dioxide, and chrome green.  The compositions may be used for coating flexible sheet materials.
Patent GB-1091314-A (GB)
Title: Improvements in or relating to looms
IPC: D03D47/00
Filed: 1966-06-20
Abstract: 1,091,314. Dummy shuttle looms. RUTIMACHINERY WORKS Ltd. June 20, 1966 [June 18, 1965], No. 27553/66. Heading D1E. As the slay moves forwards, a roller 50 riding on a fixed cam track 51 rocks a lever 36, causing a hook 41 to pass through a slot 44 in the shuttle and, as the slay recedes, draw the end of the weft out of a suction nozzle 21 and through the shuttle, where it wedges in the slot 44, which is tapered and lined with pile fabric. The shuttle is picked, drawing weft from the supply 11 until the shuttle nears the end of its travel; a clamp 46 then closes so that on continued movement of the shuttle into its box, the weft end emeregs from the slot 44 and is caught by a suction nozzle 26 which has moved rearwards relative to the slay (on which it is mounted). When the reed beats up the pick, both ends of it are trimmed by selvedge cutters 40, 239, the short end drawn out of the shuttle being disposed of by the nozzle 26 and the end leading from the bobbin 11 being retained by the nozzle 21. The same actions occur when the shuttle is picked from left to right; to ensure that only one weft is engaged by a hook 41, 42, which are both operated at every bent up, guide eyes 19, 20 are moved fore and aft as necessary. Controlling pick length. The shuttle has an iron insert 35 to generate electrical impulses as it passes pick-up devices 33, 34. The impulse produced as the shuttle nears the end of its travel triggers a transistor logic circuit which controls opening and closing of the clamps 46, 47 by solenoids 48, 49; adjustable delay is provided in the circuit to cater for different widths of fabric. There may be only one pick-up, at the middle of the slay. Alternatively, the insert 35 and pick-ups 33, 34 may be omitted, the impulses for a simpler logic circuit being generated by rotating cams; or the clamps 46, 47 may be operated entirely mechanically.
Patent GB-1015859-A (GB)
Title: Improvements in and relating to power assisted steering for motor vehicles
Inventor: DRECHSLER WALTER
IPC: B62D5/24
Filed: 1964-07-03
Abstract: 1,015,859. Power-assisted steering. LENKGETRIEBEWERK TRIPTIS VEB. July 3, 1964, No. 27581/64. Heading B7H. In a power-assisted steering mechanism for a motor vehicle, fluid flow to either side of a piston 3 is controlled by spring - loaded valves 15, 16 engaging longitudinal ledges 14 on a sleeve 7 which is slidable with the piston 3 and is rotatable with a steering nut 10 engaging a steering spindle 11 against the resilience of the valves springs 21 and by an amount limited by a slot 33 engaging a pin 34. With the valves 15, 16 in a neutral position oil supplied by a pump through a pipe 19 flows across grooves 18 in the valves to grooves 20 communicating through an annular space around the sleeve 7 with a return line 24 to an oil tank. Upon displacement of the valves 15, 16 accompanying rotation of the sleeve 7, one valve directs fluid to the piston 3 either through a line 23 or a line 22 and means (not shown) in the nut 7 or spindle 11, and the other valve connects the other side of the piston 3 to the return line 24. Back pressure above the valves 15, 16 provides " feel " proportional to the steering resistance. Recesses 32 (Fig. 5, not shown), at one end of each ledge 14 ensure that power assistance ceases at the end of the piston stroke. In another embodiment (Fig. 3, not shown), additional springs acting adjustably on the valves 15, 16 are effective only against displacement of the valves above their neutral position, and balls in conical seats in the valves engage the ledges 14. In a further embodiment (Fig. 4, not shown), the manual steering effort required is reduced by opposing the restoring force of the valves 15, 16 with spring-loaded pistons engaging additional ledges on the sleeve 7 and communicating with the return line 24 or one of lines 22, 23.
Patent GB-212201-A (GB)
Title: Improvements in or relating to the purification of gases
IPC: C10K1/12
Filed: 1922-11-27
Abstract: 212,201. Koppers Co. Nov. 27, 1922. Addition to 100,131. Materials for puri fying.- Sulphuretted hydrogen is removed from coke oven gas &c. by washing with an alkali solution such as sodium car bonate, which is re generated by treat ment with an iror compound as de scribed in the parent Specification and the step of regenerating the iron compounc by aeration is omit ted, the iron sulphide either being discarded and replaced by fresh iron compound, or converted into the original iron compound by a treatment other than aeration. The gas to be purified enters a washer A at 1 and leaves at 2. Sodium carbonate solution enters the washer at the top and passes out from the bottom by a pipe 4 to a tank 5. It is then passed to a mixer B in which it is treated with a suspension of an iron compound such as iron oxide, haematite, basic ferric carbonate, or ferrous compounds. The liquor is then passed to a separating apparatus C such as a Dorr thickener, the suspended matter being returned to the mixer B while the sodium carbonate solution is passed to a filter E and thence to a store tank 11 from which it is fed to the washing apparatus A. The solution may be also treated by aeration to remove any remaining sulphur.
Patent GB-781303-A (GB)
Title: Improvements in or relating to the conforming of shoe uppers to the shapes of appropriate lasts
IPC: A43D21/12
Filed: 1954-09-25
Abstract: 781.303. Shoe-upper conforming machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and GADD. R. O. C. Sept. 23, 1955 [Sept. 25, 1954], No. 27747/54. Drawings to Specification. Class 17(1) A machine for lasting the toe end portions of shoes comprises toe wipers, power operated mans to cause the wipers automatically to wipe the upper margins inwardly over the shoe bottom member, to retract towards the edge of the member, and then to wipe inwardly again, and pressing means, to be moved automatically into engagement with portions of the upper extending inwardly of the wipers when the latter are retracted, and. while thus engaged with the upper, advanced with the wipers as they make their second inward wiping movement. The pressing means are 'heated, and the wipers and pressing means after completing their operations, but before being withdrawn, are further advanced to prevent adherence of the wipers and/or pressing means to the wiped-over upper margin. The machine is generally similar to that disclosed in Specification 750,318 except that the pressing. means, which apply heavy and then sustained pressure to the upper margins after the second inwiping, are engaged with the upper, when the wipers are retracted, and move inwardly therewith whilst engaged with the upper, instead of being engaged with the upper after the completion of the wiping movement. This prevents the formation of a ripple in the upper between the pressing means and the wipers. The movement of the wipers is similar to that in Specification 482.275, but the machine has no tacking devices, and the clutch is first disengaged after the wipers have completed their second overwipe, so that the work is left under pressure to give the adhesive, between the upper margin and the insole, time to set. The hold-down member is thin at its outer edge, and thinner at its inner edge. Just as the clutch is disengaged, after the presser member has been lowered to press the presser plates against the lasted margin a member, on one of the cams controlling the pressing means, actuates a switch to set in action a timing device which gives an indication, e.g. a light, after an appropriate time has elapsed, whereupon the operator trips the clutch again. Alternatively, the timing device may be arranged to trip the clutch after a desired interval. Specifications 470.749. 489.649. 514.309. 519,775. 567,845, 628.426 728.054 and 738,491 [Group III] also are referred to.
Patent GB-926546-A (GB)
Title: Improvements in junction boxes for electrical conductors
IPC: H02G3/10
Filed: 1960-08-10
Abstract: 926,546. Junction-boxes. ELEKTROFABRIKKEN, ARNE BRINCHMANN A.S. Aug. 10, 1960 [Sept. 16, 1959], No. 27761/60. Class 38 (1). A junction-box into which cables may enter without external bending has lead-in openings or knockouts at corners such as 4 each extending along both the side and top walls. Trough 3, covered by a weakened portion of the cover material which may be broken away before use allows entry of cables into the top of the box. The base is fixed by a screw passing through an elongated hole which allows for some adjustment to the final position, Figs. 8-10 (not shown).
Patent GB-334078-A (GB)
Title: Improvements in or relating to door operating and fastening appliances
IPC: C10B25/12
Filed: 1929-09-12
Abstract: 334,078. Stettiner Chamotte-Fabrik Akt.-Ges. vorm. Didier. Jan. 16, 1929, [Convention date]. Coke ovens.-Doors hinged at their top edges are opened by a tractor member which first releases the fastening. The door 1 is secured in a gas-tight relation with the oven by a hook 18 engaging a pin 19. To open, the pressure of the hook 18 on the pin 19 is released manually by turning the cam 14. A hook 5 on a link 6 of the tractor member, pulled up an arc-shaped guide, is hooked on to an arm 3<a> of the lever 3, 3<a> hinged on the bracket 2 on the lower part of the door. The first action of the tractor member is to swing the arm 3, 3a to bring the end 22 of the arm 3 to the position 22". The link 7 then occupies the position 7<11>, raising the member 9 to the position 9" and lifting the arm 20 of the hook to the position 20<11> so that the hook releases the pin 19 by assuming the position 18<11>. The tractor then swings the door upwards about its hinge.
Patent GB-943854-A (GB)
Title: Telescopic strut
IPC: B64C25/60
Filed: 1961-08-01
Abstract: 943,854. Shock-absorbers. MESSERSCHMITT A.G. Aug. 1, 1961 [Aug. 1, 1960], No. 27833/61. Heading F2S. In a telescopic piston and cylinder shock absorber strut, particularly for aircraft landing gear, a differential piston rod has top and bottom portions 1, 2 which pass through associaated bearings at the respective ends of the cylinder, the bottom portion 2 is hollow and is provided with a separating piston 3 loaded on its lower side e.g. by compressed air or a spring, the space R above a main piston in the cylinder being connected to the space above the separating piston 3 by radial ducts 6 the passage of fluid through which is controlled by a non-return ring 7 mounted within a groove the main cylinder at the level of the ducts 6. During a retraction stroke the ring 7 bears against an upper collar 9 so that fluid flow from the space above the piston 3 is solely through throttle bores 8 in the collar 9. During compression the ring 7 is urged against a lower collar 10 so that fluid flowing in the reverse direction has an extra parallel path between the ring 7 and the upper collar 9, fluid flowing from the upper cylinder space R to the lower space R1 through bores 11 in the lower collar 10. The ring can be shaped to obturate some of the bores 8 in order to increase the damping during retraction. In a modification, Figs. 4, 5, not shown, the upper piston rod portion 1 is hollow and accommodates a separating piston in a supplementary compensating chamber.
Patent GB-1008658-A (GB)
Title: Improvements in and relating to internal shoe drum brakes
Inventor: CAIRNS WALLACE MARTIN JOHN
IPC: F16D65/22
Filed: 1962-07-19
Abstract: 1,008,658. Internal shoe drum brakes. AUTOMOTIVE PRODUCTS CO. Ltd. July 19, 1963 [July 19, 1962], No. 27853/62. Headings F2E and F2F. Means for eliminating squeal in an internalshoe drum brake in which the ends 11, 12 of the brake shoes are separated by a spreader device having a piston which receives in a slot 13 at the end of its rod 9 the web-end of the shoe 11 through which a pin 14 passes to project at either end to contact the end of the piston-rod 9 and to receive the thrust from it When not in operation the web and the piston. end are kept in contact by a hair-pin spring (Fig. 1, not shown).
Patent GB-225042-A (GB)
Title: Improvements in or connected with periscopes, telescopes, and like observational instruments
IPC: G02B23/02
Filed: 1923-11-06
Abstract: 225,042. Barr & Stroud, Ltd., and Strang, J. M. Nov. 6, 1923. Range-finders; periscopes.-In periscopes, used for the measurement of ranges, which are obtained from a known or assumed length at the target and a measurement of the angle subtended by this length at the periscope, a system of prisms is provided at or in a region where the beam of light is convergent or divergent, such that two images are produced, one a principal image and the other a complementary image, and such that the principal image is capable of being deviated and to remain in the same focal plane as the complementary image. Several examples of such systems are described, that shown in Fig. 2 comprising two concentric pairs of prisms, one pair of which is rotatable, so that one image may be made to coincide with the other in the zero position. In an alternative arrangement. Fig. 8, a single pairs of small prisms AB relatively rotatable are used. By this arrangement a principal image is produced at E and a complementary image at F. The angle subtended between the top of the mast of a ship and its water-line is measured by rotating the prisms in opposite directions until the top of the mast in the deviated image appears in the eye-piece 9, 10 to touch the water-line of the complementary image, as shown in Fig. 12. The angular position of the prisms with respect to the zero position gives a measure of the angle subtended. The prisms are mounted in a carrier R, Fig. 10, in holders having toothed peripheries engaged by wheel SI, connected to rotate with helical pinions S<1>, T<1> respectively, of opposite hand. These pinions S<1>, T' each gear with a complementary helix S<2>, T<2> capable of both rotational and endwise movement from the head 11, and pinion 13 respectively. A scale 14 geared with the pinion 13 indicates the extent of the relative rotation of the prisms AB. The carrier R together with the prisms AB may be turned out of the axis by the rack-and-pinion 16, 17, a single tooth 18 on a sector Y preventing rotation of the prisms. Specification 169,253 is referred to.
Patent GB-533181-A (GB)
Title: Improvements in or relating to carpet sweepers
IPC: A47L11/33
Filed: 1939-10-13
Abstract: 533,181. Carpet sweepers. JACKSON, L. MELLERSH-. (Fuller, H. P., Parker, G. M., Youart, C. M.). Oct. 13, 1939, No. 27883. [Class 138 (i)] The rotary brush of a carpet-sweeper is rendered capable of vertical and horizontal movement within the casing independent of downward pressure applied to the casing. The brush axle is mounted on a pair of bell crank levers 24, Fig. 3, pivoted at 23 and overlapping at 25. Resistance to rotation of the brush causes a lateral movement against one of the arms 24 causing the horizontal arm 25 to swing upwardly so that only the weight of the brush bears upon a carpet however deeply the traction wheels are imbedded in it. Traction wheels 16, Fig. 4, are carried on pins 15 connected to sliding plates 14 engaging a plate 13 on the casing 11. Each plate 14 is urged inwards by a spring. Removably mounted in a slot 12, Fig. 1, in the casing is an inverted U-shaped carrier 17, the outer arm of which is slidably mounted in guides G on the inner face of an end plate P. A friction pulley 18 is mounted in the carrier 17 to which also are pivoted the bell cranks 24. A buffer ring 26 preferably of rubber, rests upon the overlapping ends of the lever arms 25. A dust plate 27 is carried on the inside of the slot 12. A brush axle 31 is bored to carry a shaft 35 connected by a split spring retaining ring in a cup 19 in the pulley 18 permitting withdrawal and allowing vertical and axial movement of the brush.
Patent GB-837830-A (GB)
Title: An improved cooling device for projecting lamps
IPC: G03B21/16
Filed: 1957-09-05
Abstract: 837,830. Cooling projector lamps. MICROTECNICA S.p.A. Sept. 5, 1957 [Sept. 8, 1956], No. 28014/57. Class 75(4) In a film projector lamp 1, heat from the lamp bulb 2 is dissipated by a double walled metal casing 3, 4, the inner wall 3 of which closely surrounds the bulb 2 is blackened on its internal surface, and is integrally spacedly connected to the outer wall 4 by longitudinally extending radial vanes 5. A rotary fan 6 sited in the lamp housing below the bulb 2 drives cooling air between the walls 3, 4 through the channels defined by the vanes 5. A front opening 8 in the walls 3, 4 provide for emission of the light from the bulb, and a rear opening 9 houses the reflector 10.