baber/WOPTO huggingface dataset:
Patent GB-916689-A (GB)
Title: Manufacture of filamentary material of varying denier
IPC: D02J1/22
Filed: 1959-05-13
Abstract: Apparatus for making artificial filamentary material of varying denier by intermittently forcing running filamentary material to follow a longer path than the normal path otherwise taken by the material, thereby intermittently applying and releasing drawing tension on the material between supply and draw-off points, comprises a support having mounted thereon a number of projections, the support extending along and being mounted to travel along a path adjacent and transverse to the normal path of the filamentary material, the projections <PICT:0916689/IV(a)/1> being spaced apart in the direction of movement of the support and adapted successively to engage and deflect the filamentary material transversely from its normal path, engagement between each of the projections and the filamentary material being terminated when the projection has moved a predetermined distance from the point when it first contacts the material.  As shown in Fig. 1, a bundle of continuous filaments 14 is drawn from a dry spinning cabinet 11 by a draw roller 16 though a pigtail guide 19, over a lubricant furnishing roller 20 through pigtail guides 26 and 27 (which define the normal path of the yarn) and is wound in conventional manner on a bobbin 17.  An endless belt 22 having a number of spaced rearwardly inclined filament-engaging pins 23 bolted thereto is mounted for travel about a pair of driven rolls 24, 25 so that the upper reach of the belt travels horizontally and transversely to the normal path of the running yarn 14, with the pins 23 successively engaging and then releasing the yarn. The length of the upper reach of the belt 22 may be at least equal to the length of a metier, the yarns coming from all the spinning cabinets in the metier being acted upon simultaneously by a single belt.  The belt 22 may be mounted so that it travels along an inclined instead of a horizontal path, the pins 23 in this case being straight and not curved and projecting at right angles from the belt.  Alternatively the belt 22 may be mounted for travel in a vertical plane, the pins 23 being curved back as in Fig. 1 so that after engaging the yarn to deflect it transversely of its normal path, each pin releases the yarn after the pin travels further about the curved path determined by the upper roller on which the belt is mounted.  The pins or projections on the travelling belt may be spring loaded so as to release the yarn at a predetermined tension, or they may be rotated so as to release the yarn.  Alternatively the yarn may be lifted off the projections by fixed or movable guides.  The apparatus may be employed for imparting a variable denier during the stretching of previously spun filaments.  The apparatus of the invention enables slub yarns to be produced at a higher rate than is possible by conventional methods.
Patent GB-1115304-A (GB)
Title: Improvements in impulse forming and like machines
Inventor: TOBIAS STEPHEN ALBERT
IPC: B21J7/26
Filed: 1965-04-06
Abstract: 1,115,304. Forging. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 29 March, 1966 [6 April, 1965], No. 14613/65. Addition to 1,112,182. Heading B3H. In an impact forging machine according to Specification 1,112,182, compressed air admitted into chamber 25 for raising the main piston 3, is further compressed during the impact stroke and is subsequently passed into the combustion chamber 9. The piston 3 is connected by rod 2 to the main ram 1 carrying the upper die part 16. The impact stroke is performed by combustion of fuel injected into chamber 9 by atomizer 13 and ignited by spark plug 21. During the impact stroke, compressed-air admission valve 26 closes and the air in chamber 25 is further compressed and forced through valve 23 into an accumulator 24 from which it is passed through inlet valve 12 to scavenge and pressurize the combustion chamber 9; alternatively the compressed air may pass directly into the combustion chamber. An exhaust valve 11 and vent valve 14 are fitted to the combustion chamber. The valve 23 may close before the piston 3 reaches the bottom of its stroke which is then cushioned by the trapped air. The machine may have opposed rams as described in Specification 1,112,181 and may be controlled automatically as described in Specification 1,112,183.
Patent GB-1237670-A (GB)
Title: Improvements in or relating to bending machines
Inventor: FREDERIKSEN OVE STEEN
IPC: B21D11/12
Filed: 1970-04-07
Abstract: 1,237,670. Angular bending. O. S. FREDERIKSEN. 7 April, 1970 [16 April, 1969], No. 16436/70. Heading B3E. A machine for bending tubes or rods comprises a table 1, a rotatable disc 4 mounted upon the table, the disc and table both being provided with apertures 5, 3 for receiving holding pins (not shown), a gear wheel 8 coaxially connected to the disc operated by at least one rack 9 a fluid pressure piston 15 connected to the rack and controlled by a valve e.g. a solenoid valve operated by an electrical component connected to a movable part of the machine and controlled from a control panel. In an embodiment two racks 9, 10 are used and are connected to pistons 15, 16 the cylinders 17, 18 of which have rollers 27 which roll against the racks to keep them in meshing contact with the gear 8. Connecting links 11 between the piston-rods and racks have rollers 30 which engage guide rails 31, 32 (Fig. 3). The table is mounted on rollers 35. The cylinders are actuated by a combined pump and oil tank 25. In another embodiment (Fig. 4) additional cylinders 37 and 38 are provided to assist the cylinders 17, 18 to accelerate the movement of the racks at the beginning of a bending operation. The Specification describes in detail electrical circuits for controlling the machine by switch knobs 72, 73 or 124 on a panel to enable rods or tubes of different thicknesses to be quickly and easily bent to a required shape.
Patent GB-350220-A (GB)
Title: Improvements in smoke tube or water tube boilers
IPC: F22B37/06
Filed: 1930-05-28
Abstract: 350,220. Steam boiler water tubes. OWEN, W. H., 19, Home Park Road, Wimbledon, London. May 28, 1930, No. 16467. [Class 123 (ii).] A boiler water tube is surrounded by a coil of spirally wound small gauge wire in contact with the surface of the tube and having the turns of the spiral spaced apart. The spiral has a pitch about equal to the diameter of the tube. Specifications 23993/92 and 8594/00, [both in Class 123, Steam generators], are referred to.
Patent GB-314199-A (GB)
Title: Improvements relating to woven wire cloths and to looms for weaving the same
IPC: D03D41/00
Filed: 1928-06-07
Abstract: 314,199. Smith, P. June 7, 1928. Wire-cloths for paper-machines are woven with the warp threads extending in sinuous undulatory zig-zag lines 22, 23, Fig. 6, whereby the frictional drag of the cloth over the suction boxes is reduced without reducing the suction action.
Patent GB-1422486-A (GB)
Title: Emergency system for operating an electric load
IPC: H02J7/02
Filed: 1974-04-16
Abstract: 1422486 Emergency lighting systems NORTH AMERICAN PHILIPS CORP 16 April 1974 [16 April 1973] 16674/74 Heading H2H [Also in Division H3] An emergency supply system comprises a load normally fed from an A.C. supply, the load being fed from a D.C. source by way of an oscillated circuit when the A.C. supply fails, the D.C. source being connected to the oscillator by a controlled switching device which is rendered conductive upon such failure and maintained conductive during such failure. A load, such as a gas discharge lamp 6 is supplied by way of a ballast 5 and a switch 3 when an A.C. source 1, 2 is available. Whilst the A.C. supply is available a capacitor 24 is maintained fully charged by means of a transformer 4, a diode 8 and a potential divider 21, 22, 23. A battery 7 is also maintained charged, the charging current being maintained more or less constant by the regulating action provided by a circuit which includes a transistor T1, a Zener diode 15 and resistors 9, 13, 14, 16, battery charging being indicated by a lamp 12. Whilst the A.C. supply is available the potential on the capacitor 24 drives a transistor T4 into saturation which renders transistor T3 non-conductive and hence transistor T2 non-conductive, the oscillator thereby being unenergised. Upon failure of the A.C. supply 1, 2 the capacitor 24 begins to discharge via resistors 22, 23 whereupon transistor T4 cuts-off, transistors T3, T2 become conductive and the oscillator, including transistors T5, T6 and transformer 17, is energised to supply the lamp 6. A capacitor 29 is charged by the battery 7 and serves via potential divider 27, 28 and diode 20 to maintain conduction of transistors T3, T2 after capacitor 24 has fully discharged. Should the A.C. failure be prolonged and the battery voltage fall to an undesired level the capacitor 29 voltage will become insufficient to maintain transistors T3, T2 conductive. In such ease the oscillator cannot be restarted until the A.C. supply has been restored and capacitor 24 restarted. During operation the halves of the primary winding of transformer 17 saturate to provide a square wave output voltage.
Patent GB-713449-A (GB)
Title: Method and device for regulating thread tensions in winding devices
IPC: B65H59/22
Filed: 1951-07-13
Abstract: 713,449. Thread-tensioning devices. BARMER MASCHINENFABRIK AKT.-GES. July 13, 1951 [Sept. 18, 1950], No. 16676/51. Class 120(2) A device for regulating the thread tension in winding devices comprises a tensioning device in the form of two magnetically controlled discs having contacting surfaces between which thread can be passed, one of the discs being guided on a shaft for pivotal and lateral movement with respect to the other and a guide pin arranged in a plane other.than that of the contacting surfaces in such a position that a thread can be passed over it after leaving the tensioning device whereby the thread travels in an angular path. As shown the tensioning. device comprises two discs 1 and 2, the disc 1 being rockably mounted about a shaft 3 which is guided in a slot and is displaceablewith sudden fluctuations in titre. A magnet 4 is arranged beside the disc 2, which magnet can be displaced in an axial direction on a screen so that the air gap between the magnet 4 and the disc 2 can be adjusted A fixing device 5 keeps the magnet in its adjusted position. The shaft 6 of the magnet is held in a carrier 7 and has the disc 2 rigidly connected to it. The thread 10 after passing between the discs is led to a guide pin 11 which is so arranged that the thread has an angular path. Should the tension in the thread become excessive the disc 1 pivots about the axis 3, thus relieving the tensioning effect of the discs on the thread.
Patent GB-485248-A (GB)
Title: An apparatus for registering telephone calls
IPC: H04M15/30
Filed: 1937-06-16
Abstract: 485,248. Counting-apparatus. LJUNGQVIST. C. V. A. June 16. 1937, No. 16700. [Class ]06(i)] A band is advanced. manually or automatically one step at each telephone call, the band having a scale divided into a number of parts corresponding to the total number of calls permitted per year in a given rental class, date numerals being marked on the band at points representing the number of calls permitted by the corresponding dates. In the form shown, a knob knob I is depressed manually at each call and rocks a lever 4 about a pivot 2, the lever having a pawl 5 which advances a roller 8 to draw the band from a supply roll 10, beneath an aperture 11, between the roller 8 and a roller 14 and to pass it outside the casing. The band, Fig. 2, may be marked with date figures and with the total numbers of calls. The band may be replaced by a drum.
Patent GB-843127-A (GB)
Title: Improved appliance for handling eggs and other objects, particularly of ovoidal or spherical form
Inventor: LAWSON CLIFFORD WILLIAM
IPC: A01K43/00
Filed: 1957-05-27
Abstract: 843,127. Holding and picking-up tools. BRECKNELL, DOLMAN & ROGERS Ltd. May 16, 1958 [May 27, 1957], No. 16737/37. Class 61. An appliance for lifting eggs and other objects of ovoid or spherical form comprises a portable support carrying a plurality of bellows or concertina-like flexible suction cups each adapted to embrace an egg or like obiect in an airtight manner when pressed thereonto, each cup being associated with a valve housing and valve member operable to allow free passage of air to exhaust to atmosphere through vents in the housing. As shown, a plate-like body 1 has a series of bosses 2 spaced at the same setting as the cells of an egg tray. To each boss 2 is screwed an adapter sleeve 3 carrying a flexible cup 5. A valve 6 comprising a disc portion 6A disposed midway along the stem 6B is accommodated partly within the boss 2 and partly within the sleeve 3. The disc carries a sealing washer 7 and is normally held against a seating in the boss by a spring 8. Vent holes 9 are provided in the crown of the boss and connecting holes 10 in the sleeve. The upper parts of the stems 6B extend through the bosses 2 and are depressed to open the valves by levers 11. The levers are pinned to cross shafts 12 which are supported on the body, those at each side being linked together and the two centre shafts being coupled together by gear pinions. A lifting handle 20 is attached to the body 1 by brackets one of which carries an upwardly sprung push rod 19. Depression of the knob 18 causes the rod 19 to act on the levers 11 through a lever 17 pinned to one of the gear coupled cross shafts, to open the valves 6.
Patent GB-633879-A (GB)
Title: Improvements in and relating to reservoir writing instruments
IPC: B43K7/03
Filed: 1945-04-19
Abstract: 633,879. Reservoir pens. MARTIN, H. G. April 19, 1945, No. 16738/47. Divided out of 633,821. [Class 146 (iii)] In a ball-point reservoir pen, pneumatic means are arranged to exert on the ink a pressure having a maximum value no greater than and preferably less than the capillary pressure in the gap between the ball and its housing. As shown, the reservoir 27 comprises capillary channels 34a formed on the surface of a core of synthetic resin enclosed in a sheath 32. At the inner end of the reservoir is attached a resilient bellows made of thin metal or comparatively stout rubber enclosing an air-chamber 29. When the barrel parts 30a, 30b are assembled, an initial compression is imparted to the chamber 29 so that the air therein exerts pressure on the ink. The required pressure may be ascertained by trial and error methods. In this construction the pressure decreases as the ink is used. If a constant pressure is required, the chamber 29 is loaded by a weight which operates only when the pen is in the writing position. Specifications 571,698, 573,747 and 633,821 are referred to. According to the Provisional Specification, pressure may be applied to the ink by a spring-pressed plunger. Further the reservoir may be a rubber bag or corrugated metal cylinder or a cylinder with a flexible diaphragm so that as the reservoir or a part thereof is compressed, the ink is urged towards the ball. Means may be provided for removing or applying the pressure at will. For example, fitting the protecting cap on the end remote from the ball may function to compress the reservoir directly or through a spring. Alternatively, the reservoir with the ball may be slidable in a casing against the action of a spring which applies pressure to the ink when presure is applied to the pen point in the act of writing. The reservoir may be in the form of an annulus comprising a collapsable bag and an internal tube and the bag when compressed may apply air pressure to the ink. Specification 629,226 is referred to in the Provisional Specification.
Patent GB-1110172-A (GB)
Title: Improvements in or relating to magnet structures
Inventor: WATSON EDWARD
IPC: H01F7/20
Filed: 1964-04-22
Abstract: 1,110,172. Magnets. NEWPORT INSTRUMENTS Ltd. 20 April, 1965 [22 April, 1964], No. 16741/64. Heading H1P. [Also in Division G1] A magnet assembly comprises two polepieces 10, 20 of magnetically soft material each having a continuous pole face, at least two electro- or permanent magnets (such as 30, 32) being arranged between the pole faces so as to provide a homogeneous field within the air gap. The assembly may be employed in gyromagnetic resonance observations on fluid flowing in a pipe 42, a radio frequency test coil 44 being provided. A scanning field may be included by the use of coils (not shown) wound over the permanent or electromagnets 30, 32. In Fig. 5 (not shown), the polepieces have the form of circular slabs of soft iron separated from one another by four cylindrical electromagnets. The nature of the field may be adjusted by insertion of magnetically soft shims between the magnets 30, 32 and the polepieces 10, 20 or by adjusting the position of the magnets 30, 32 with respect to each other.
Patent GB-1048880-A (GB)
Title: Improvements in or relating to diamond form tools
IPC: B24B53/14
Filed: 1964-04-23
Abstract: 1,048,880. Abrasive tools; trueing grinding wheels. NARADI, PRAHA NARODNI PODNIK. April 23, 1964 [May 13, 1963], No. 16840/64. Heading B3D. A diamond disc-type or block-type form tool comprises a supporting body and a single layer of diamond grains connected with the body by a binding material, the grains being embedded in the binding material so as to have their active points lying in the required external geometric surface of the active part of the tool, this surface being determined by an exactly defined generating line of irregular and/or intricate shape which is rotated about an axis to produce a disc-type tool or is moved linearly to produce a block-type tool. The tool may be for working hard materials, e.g. sintered carbides, corundum, electrotechnic ceramics, ferrite &c. for truing grinding wheels or for use as a hand file. The body 1 has grooves 2. The binding material 3 may be metal and has diamond grains embedded in its active surface.
Patent GB-964168-A (GB)
Title: Improvements in or relating to needle stop or positioning apparatus in power-driven sewing machines
IPC: D05B69/22
Filed: 1963-04-30
Abstract: 964,168. Sewing machines. G. M. PFAFF A. G. April 30, 1963 [May 2, 1962], No. 16855/63. Heading D1G. In a sewing machine, additional raising of the presser foot is arranged to bring a first stop member into the path of movement of a second stop member for stopping the machine with its needle in a predetermined position. As shown, a presser bar 49, carrying a presser foot 50, may be raised additionally by a lever 46, when a driving motor is started to run at slow speed, and a stop 15 is moved into the path of a stop 10, carried by a crank 6 coupling the arm shaft 4 to the needle bar, to stop the machine with the needle fully up. Lever 46, rigid with a pivot 45, carries a cam surface which co-operates with a bar 54 rigid with the presser bar 49 to raise the latter against the bias of a spring 52, bar 49 being held in the raised position by co-operation of bar 54 with a flat surface on said cam. If lever 46 is turned additionally, a radial pin 48 rigid with pivot 45 coacts with the lower end of a slot 21 in a bar 19 attached by a pin 18 to one arm of a three-armed lever 13. The latter thereby turned counterclockwise against the bias of a spring 27, when a flexible cable 30 attached to a second arm of lever 13 moves a lug 40 against the bias of a spring 42 to close a switch 43 to start the driving motor at slow speed, and the stop 15, carried by the third arm of lever 13, is positioned in the path of stop 10. Lever 13 may alternatively be shifted to the needle-positioning position by manipulation of a knob 32 rigid therewith.
Patent GB-822922-A (GB)
Title: Improvements in fluid heaters and combustion apparatus therefor
IPC: F22B21/34
Filed: 1956-05-31
Abstract: 822,922. Hot-water boilers. FOSTER WHEELER Ltd. May 31, 1956 [May 31, 1955], No. 16860/56. Class 64(1) [Also in Group XII] Oil &c. is heated in banks of radiantlyheated tubes 32, 34, 36 and 40, 41, 42 lining the upper parts of the side walls and the roofs of adjacent combustion chambers 18, 19 having recesses 50 for pulverized fuel burners 20 and auxiliary gas or oil burners 21 the name jets of which intersect one another, so as to effect substantially complete combustion of the pulverized fuel. The recesses 50 are lined with heat-reflective refractory material. The oil is supplied through pipes 44 to convective tube lamps 26 disposed in a flue and connected by pipes 46 to the tube banks 32, 34 and 40, 41 which are connected in series with the roof banks 36 and 42 respectively, the latter having oil outlets 43.
Patent GB-700209-A (GB)
Title: Microscope for achieving phase control or diaphragm effects
IPC: G02B21/14
Filed: 1951-07-17
Abstract: 700,209. Microscopes. OPTISCHE WERKE C. REICHERT AKT.-GES. July 17, 1951 [July 21, 1950], No. 16948/51. Class 97(1) A microscope in which an image of the diaphragm aperture or the condenser is formed in the exit pupil or the objective, an image of this exit pupil is formed by a lens system between the objective and the eyepiece, and a holder for a phase plate or a diaphragm for producing respectively phase contrast effects and diaphragm effects (such as stopping out the higher order diffraction maximum) is provided between the objective and eyepiece, is characterized in that the lens system consists of two achromatic lenses of equal focal length f spaced apart so that the distance between the rear principal point of the lens nearer the objective and the front principal point of the other lens is equal to 2f, and in that the holder for the phase plate or diaphragm is located in the plane or the image or the exit pupil formed by the lens system or by the lens thereof which is nearer the objective. The holder and the lens system may be slidable along the optical axis independently or jointly, and the holder may accommodate several phase plates or diaphragms and be in the form of a change device (e.g. a slide) so that the plates or diaphragms can be selected at will. In the microscope shown, the microscope objective lies beneath the object P and light passes therethrough from reflector I for reflection by the object to a prism U 1 . A condenser. K and the objective image the diaphragm aperture D in the exit pupil A of the objective and this exit pupil is imaged by the lens system L<SP>1</SP>, L<SP>2</SP> at A<SP>1</SP> where a phase plate is located. An image of object P is formed at B<SP>1</SP>. The prism U 1  is movable out of the light path so that the light may be directed by a second prism U<SP>2</SP> through a similar lens system so that a phase contrast image of the object may be photographed at B<SP>1</SP>.
Patent GB-515938-A (GB)
Title: Improvements in and relating to packings for bottles and other fragile articles
IPC: B65D59/04
Filed: 1938-06-08
Abstract: 515,938. Paper &c. tubes. SEARS, W. A., and COMPRESSED PAPER PACKING, Ltd. June 8, 1938, Nos. 17045/38 and 10146/39. Drawings to Specification. [Class 99 (ii)] [Also in Groups VIII and XVII] A packing for bottles consists of a sheet of paper or fabric coated on one or both sides with cork granules and provided with a margin coated with adhesive or with an adhesive strip attached to the margin. The cork surface may be covered by a sheet of thin paper. The surfaces which contact, when the sheet is turned into a tube with overlapping edges, may'be coated with a rubber preparation which will not adhere to the material of the tube or the cork granules. The articles may be produced by apparatus as described in Specification 512,692, [Group VIII], to which is added devices for skelping and for applying an adhesive strip to the margin. Specification 515,938, [Group XVII], also is referred to.