baber/WOPTO huggingface dataset:
Patent GB-1423081-A (GB)
Title: Gear train
IPC: F16D11/02
Filed: 1974-02-06
Abstract: 1423081 Gearing MALLORY TIMERS Ltd 6 Feb 1974 [20 Feb 1973] 05523/74 Heading F2Q A gear train comprises a series of gears of plastics material and a series of gears of metal, and a plastics gear and a metal gear carried on a common shaft, the plastics gear engaging a gear of the series of plastics gears and the metal gear engaging a gear of the series of plastics gears. As shown an input pinion 28 drives a gear 31 and a pinion 33, the pinion 33 driving another gear 35 and a pinion 37 which in turn drives a gear 30 and pinion 32, in turn driving a gear 27 and pinion 29 to finally an output gear 43 on an output shaft 40. The torque increases towards the output end of the gearing and plastics gears are used where the torque is low enough. As described gear 31, pinion 33 and gear 35 are of plastics, with a metal pinion 37 fixed to plastics gear 35 and engaging the first gear 30 of the series of metal gears. The gear 35 and pinion 37 are shown in Fig. 3, gear 35 being splined on a portion 47 of pinion 37. A unidirectional clutch (Figs. 4 and 5, not shown) may interconnect a gear and pinion of the gear train, or a torque limiting coupling (Fig. 6, not shown) may be used in which the gear is rotatably mounted on a shaft of the pinion and frictionally held by springs. The input gear 28 may be driven by a synchronous motor and the gearing used in clocks or other timing mechanisms.
Patent GB-1156242-A (GB)
Title: Engine Viscosity Simulator
Inventor: KIM DAE SIK
IPC: G01N11/14
Filed: 1967-02-06
Abstract: 1,156,242. Measuring viscosity. ESSO RESEARCH & ENG. CO. Feb. 6, 1967, No. 5543/67. Heading G1S. In an engine viscosity simulator, a sample of oil is fed through a sample injector 25 into a plastics sample holder 2 in which is rotated a shaft 15 mounting a drum 9 moving in a fixed sleeve 4. The shaft is rotated by a constant voltage motor 20 through a gear train 21 which further drives a tachometer 24, for measuring the r. p. m. as a measure of the viscosity of the oil. The drum 9 is provided with a pair of symmetrical flats which, on rotation of the shaft create a continuously variable shear rate which simulates the engine viscosity. In a further embodiment, temperature control means in the form of a heat exchanger and thermocouple maintain the sleeve at a predetermined temperature.
Patent GB-608402-A (GB)
Title: Improvements in or relating to road sweeping and refuse collecting machines
IPC: E01H1/04
Filed: 1946-02-22
Abstract: 608,402. Road - sweeping machines. LEWIN ROAD SWEEPERS, Ltd., DEAR, A. T. C., and HEATHCOTE, F. W. L. Feb. 22, 1946, No. 5558. [Class 107] In a road sweeping machine an elevator 61 conveys to a container 33 sweepings from a brush 23 mounted transversely of the chassis. The upper roller 31 of the elevator is positively driven and the elevator frame 61 is arranged to pivot about the axis of rotation of the roller on bosses carried in bearings on the chassis. The brush and elevator can be raised simultaneously by turning a handle 26 so rotating a drum to which are connected cables 75 attached to lugs 81 adjustably mounted on brush lifting rods 78. A connection is provided between the lug 81 and a lug 74 on the elevator. Stops 84 and 85 limit the lower position of the elevator and brush. Specifications 589,947, 589,948 and 608.403 are referred to.
Patent GB-775711-A (GB)
Title: Improved method and device for the manufacture of cord
IPC: D01H1/00
Filed: 1955-02-24
Abstract: 775,711. Twisting textile threads. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Feb. 24, 1955 [April 1, 1954], No. 5600/55. Class 120 (2). Two threads are formed into a cord by twisting them separately in the same direction and winding them parallel on a bobbin prior to the bobbin being rotated to feed off the threads under equal tension to a device mounted freely rotatably and coaxially above the bobbin, whereon the threads are separately tensioned before being united at a free plying point with a twist opposite to the original individual twists. The bobbin is mounted on a spindle to which an extension 5 is firmly, secured. The upper part of the extension 5 is frusto-conical with a central upstanding spindle formed with a groove to take spring-urged claws by which a body 9 is held on the extension 5 in operation. Pivoted on the body 9 is a flyer 10 through which the threads pass from the bobbin after having been given a few turns round each other. Above the flyer 10 is mounted a rod 14 for the separation of the threads before they pass around brake rods 16a, 17a, 18a, 19a, 20a, 16b, 17b, 18b, 19b, 20b on opposite sides of the body 9. During operation the body 9 is lifted from the conical surface of the extension 5 and rotation of the body 9 is then effected by the flyer 10. The brake rods 18a, 19a, 18b, 19b are secured to a cylinder 21 rotatable in the body 9 for adjustment of the thread tension. Instead of twisting together by threads before passing them through the flyer 10, the threads may be caused to adhere to each other when they are being wound on the bobbin 1.
Patent GB-795120-A (GB)
Title: Heat exchanger baffle system
IPC: F23M9/00
Filed: 1957-02-19
Abstract: 795,120. tubular heat exchangers. IPSEN, H. N. Feb. 19, 1957 [Feb. 27, 1956], No. 5639/57. Class 64(3) Means for promoting turbulence in a gas flowing through a heat exchanger tube comprises a plurality of strips mounted end to end within the tube, each strip being twisted to define a helical flow path for the gas on each side of the strip and adjacent ends of neighbouring strips being angularly displaced one from the other whereby gases moving through the tube are intercepted by the strips and deflected along helical passages successively offset angularly one from the next. The strips are pre ferably made of ceramic material. In the form shown adjacent strips 24 are interconnected by hooks 30 formed thereon, the assembly being suspended by a hanger 34 from the upper end of a vertical furnace-tube 11. The upper end of the tube 11 is fixed by a bellows 14 to the furnace wall, the lower end of the tube resting on a seat 16 secured by means of a ring 17 to the underside of the furnace.
Patent GB-580121-A (GB)
Title: Improvements in impregnated leather
IPC: C14C9/00
Filed: 1943-04-12
Abstract: Leather for sealing rings, e.g. on rotary shafts, is impregnated with colloidal graphite and a synthetic resin, e.g. a castor oil-modified alkyd resin as described in Specification 580,120, a vinyl resin, polymerized chloroprene, or a copolymer of styrene and butadiene. The resin may be dissolved in a solvent, e.g. ethyl acetate, benzene, xylol or acetone, in which the colloidal graphite is dispersed.
Patent GB-391289-A (GB)
Title: Improvements relating to the pulse or waste valves of hydraulic rams for raising water
IPC: F04F7/02
Filed: 1932-02-27
Abstract: 391,289. Hydraulic rams. BLAKE, H. V., Dykenook Lodge, Accrington. Feb. 27, 1932, No. 5872. [Class 102 (ii).] A pulse valve for an hydraulic ram has one or more springs arranged between the valve member and seat to ensure prompt opening. In the form shown in the Figure a simple lift valve a having a spindle b slidable in a guide c<2> has the valve head recessed to provide a housing for a spring d. The tension of the spring is adjusted by inserting one or more washers between the spring and valve member. In a modification an annular lift valve connected by arms to a sleeve slidably mounted on a fixed spindle has the springs arranged with the central hole in the valve member between the valve seat and a shoulder on the guide. In a further modification a rubber or rubber composition valve is slidably mounted on a fixed spindle and has a series of loading springs housed in recesses in the valve member and seat.
Patent GB-424859-A (GB)
Title: Improvements in and relating to electric converter systems
IPC: H02M3/33
Filed: 1934-02-22
Abstract: 424,859. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin) Feb. 22, 1934, No. 5873. Convention date, Feb. 24, 1933. [Class 38 (ii)] A parallel-type inverter comprising valves 2, 3, a commutating condenser 4, and a transformer 5 is associated with a rectifier comprising valves 10, 11 connected to a separate winding on the transformer and arranged to feed back energy to the D.C. supply 1 so as to maintain the inverter under constant load and thereby maintain constant output voltage. The inverter is shown as feeding a rectifier comprising valves 6, 7, through which a secondary D.C. network 8 is supplied. Additional reversely-connected valves 12, 13 and a commutating condenser 14 may be associated with the rectifiers 6, 7 to permit of energy being fed back from the D.C. network 8. The valves 10, 11 may be grid-controlled in order that the amount of feed back and consequently the output of the inverter may be regulated. Above the load range in which the feed-back arrangement is effective the inverter output may be regulated by varying the frequency. Specification 424,728 is referred to.
Patent GB-1245323-A (GB)
Title: Improvements in rotary machines such as internal combustion engines and compressors
Inventor: SHAW HARRY
IPC: F01B3/00
Filed: 1969-02-04
Abstract: 1,245,323. IC engines; compressors; hydraulic reciprocating motors. AVIATION SUPPLY MINISTER OF. Jan. 27, 1970 [Feb. 4, 1969] No. 5893/69. Headings F1A, F1B and F1N. A rotary machine comprises a pair of rotors 6, 7 journalled on stub shifts which are inclined relative to each other at an angle of at least 90 degrees but less than 180 degrees, preferably 150 degrees, cylindrical bores in each rotor, sleeves 41 cranked to the angle between the rotor axes having thin opposite ends disposed in bores of the two rotors and being capable of sliding and rotating relative to the bores, substantially cylindrical members 13, 14 fixed relative to the rotors and extending axially within the sleeves, one bore of each interconnected pair communicating with a gas inlet 31, at least one part 40 in each sleeve connecting the inlet with the sleeve cyclically in accordance with rotor rotation, and at least one other part 42 in each sleeve arranged to connect the insertion of the sleeve cyclically with a gas outlet 33. The rotors may be geared together by teeth 8, 9. The inlet ports 40 make connection of the interior of the sleeve 41 with the inlet 31 substantially by relative rotation between the sleeves and the rotor 7, while the outlet ports 42 may make connection of the interior of the sleeve with the outlet 33 substantially by relative axial movement between the sleeves and the cylindrical member 13. The machine may be a compressor or, as shown, a two-stroke IC engine having spark plugs 23. Connection to a drive shaft 36 may be effected by gearing 35, 37. Alternatively, the rotors may be rigidly attached to their stub shafts which are then journalled for rotation and connected to transmission means. The cylindrical members 13, 14, or parts of them may be movable axially to vary the compression ratio. Rotors and stator blading may be provided between a fixed inlet duct 30 and a fixed outlet duct 34 and the corresponding rotor inlets 31 and outlets 33 to assist in changing the engine and driving the rotors. Alternate rotor bores may act as ports of an I.C. engine (or a hydraulic motor) and a compressor (or a hydrostatic transmission unit), and the compressor may be used to change the engine.
Patent GB-179706-A (GB)
Title: Improvements in or relating to sectional furniture
IPC: A47B87/02
Filed: 1921-02-21
Abstract: 179,706. Furst, W. A. T. Feb. 21, 1921. Seats convertible into cabinets.-A cabinet mounted on a stool or base a comprises sections such as b, d, g and a cornice i which can be placed on the base a, when the sections b, d, g are removed, to form a hall seat or bench.
Patent GB-249103-A (GB)
Title: Improvements in or relating to casement stays or adjusters
IPC: E05F11/00
Filed: 1926-03-02
Abstract: 249,103. Spencer, C. E., (Assignee of Roberts, O. W.). March 13, 1925, [Convention date]. Stays.-The stay-bar is pivotally attached to the window frame and carries a slider which is substantially enclosed by and adjustable in a guide secured to the window, the slide being spring-pressed so that its projection makes a locking engagement with slots in a wall or flange of the guide, the slider having a handle by means of which it can be released and the casement opened or closed. The arrangement is described with particular reference to metal casements. A metal stay-bar 24 is pivotally attached at 29 to a bracket 22 on the framing and carries at its other end a pivotally-connected slider 45 which is bent so that its upper part 47 slides in a guide frame 23 secured to the casement. The slider is formed integral with a finger piece 55 so that it can be lifted to disengage a pin 48 from a hole 42 in the guide 23 and against the action of a spring 51, when it is desired to adjust the window. The guide is secured to the casement as shown in Fig. 3 and has a slot 35 through which a side of the slider extends. The outer wall of the slider has a rounded projection 53, which bears against the wall of the guide. The bracket 22 has an angled portion adapted to be set into a notched-out portion of the window frame, and a U-shaped upper end between the sides of which the stay-bar is pivotally connected.
Patent GB-312392-A (GB)
Title: Improvements in racks for displaying fabrics
IPC: A47F7/17
Filed: 1928-02-25
Abstract: 312,392. Oliver, W. T. Feb. 25, 1928. Rack stands. - A rack for displaying fabric consists of a framework adapted to receive, in a readily removable manner, a number of rolls on which the fabric is wound, means being provided to prevent the rolls rotating. In the construction shown the framework consists of a pair of inverted V - shaped end frames A connected by transverse members A<2>, the frames carrying brackets B to non-rotatably receive the ends of the rolls which are formed with a pair of opposed flats. The rack may be fitted with castors D or the lower ends of frames A domed.
Patent GB-175899-A (GB)
Title: Improvements in connection with rock-drills
IPC: E21B10/32
Filed: 1921-02-22
Abstract: 175,899. MeCracken, A. Feb. 22, 1921. Cutters; cutter-bars: boring-heads. -The cutters d of a rock drill are positively expanded and retracted through slots in the cutter-bar a by inclined lugs d<1> which engage corresponding slots in a cylindrical core c. The latter is feathered in the cutter-bar and is swivel-jointed to the screwed adjusting-rod by means of a saddle-pin f, Fig. 3<a>. An end plug g serves as a bearing for the cutters and as a stiffener for the cutter-bar. A cooling-water conduit b<2> and debris-grooves i are provided. The cutter-bar may be raised in graduated stages for undercutting the hole bored.
Patent GB-651251-A (GB)
Title: Improvements in or relating to variable ratio torque transmitting mechanisms
IPC: F16H47/08
Filed: 1946-02-26
Abstract: 651,251. Hydromechanical variable-speed gearing ; friction and ratchet clutches. BORGWARNER CORPORATION. Feb. 26,1946, No. 5955. Convention date, May 18,1944. [Class 80(ii)] In a motor vehicle or other variable-speed gear having the pump and turbine elements 22, 23 of a hydraulic torque convertor connected respectively to a sun gear 19 and a driven planet carrier 2C whose interengaging planets mesh with the sun and with a driving annulus 16, the sun has a roller clutch or other one-way drive connection 60 with the element 22 and may be stationed by a brake 21 tc provide a fixed overdrive ratio. As shown, a hollow shaft 39, rotatable about an output shaft 40 to which the planet carrier 20 is splined, carries the sun 19 at one end and has slidably splined at the other end rotatable brake members 53 engaged, under the action of a hydraulically operated piston 58, between members 55 splined on a fixed gear casing 48. The converter reaction element 24 is connected to the casing 48 by a one-way roller clutch 52 to allow forward running. Separate mechanical reversing-gearing is provided behind the main gearing, a positive clutch member 76 sliding to give reverse through a gear cluster 68, neutral, or direct drive between the output shaft 40 .and propeller shaft 74. A centrifugal main friction clutch 12 connects the annulus 16 to the engine flywheel 10. Flyweights 32, pivoting on a reaction plate 30 rotating with the flywheel and positioned by a Belleville washer 31, act through struts on a presser plate 35 co-acting with a driven clutch plate connected by a circumferential spring coupling with a member 38 which supports the annulus 16. The member 38 is axially movable, under the torque reaction on the teeth of the annulus 16, which are helical, and thus forms the movable member of a ratchet clutch 64, 65 which is disengaged on normal driving but engages under reverse torque to drive the flywheel 10 from the output shaft 40 for push-starting of the engine. Pumps 47, 66 driven from the turbine element 23 and shaft 39 respectively maintain the converter fluid supply through conduits (not shown), so long as either of the shafts 39, 40 are rotating. Specification 651,316 is referred to.
Patent GB-1090882-A (GB)
Title: Improvements in and relating to timebase frequency control in television receivers
IPC: H03L5/00
Filed: 1965-02-12
Abstract: 1,090,882. Automatic phase control systems. BLAUPUNKT-WERKE G.m.b.H. Feb. 12, 1965 [Feb. 15, 1964], No. 6094/65. Heading H3A. A television receiver sine-wave line oscillator 10 is frequency and phase controlled by the D.C. output of a phase detector 1 applied to a back biased variable capacity diode 4 shunting the frequency determining tuned circuit 8 of the oscillator and a limiter diode 14 is also connected across the timed circuit to clip and prevent the generated sine wave exceeding a voltage which would render the capacity diode 4 forwardly conductive. Thus, a small back bias, producing maximum capacity, and capacity variation, may be applied to the diode 4. Further, the diode 4 may be series connected as shown with an auto-transforming coil 18 extending from the tuning coil so that the effect of diode 4 on the tuning control is enhanced. The sine wave oscillator is connected through a parallel connection R.C. circuit 20 to the base of a driver transistor 21 driving a line output stage.
Patent GB-273612-A (GB)
Title: Improvements in or relating to partitions, bulk-heads or the like
IPC: E02D29/02
Filed: 1927-03-04
Abstract: 273,612. Slegt, H. March 4, 1927. Warehouses; granaries. - A portable partition for dividing the floor space in the storage of goods is built of monolithic concrete elements each comprising a. base portion 1 and an upstanding web 2. The elements may be joined by tongue and groove joints to form the partition and the corner elements have their base edges bevelled to 45‹.
Patent GB-245710-A (GB)
Title: Improvements in or relating to free-wheel devices for bicycles
IPC: F16D41/24
Filed: 1925-03-06
Abstract: 245,710. Eynde, J. M. van den, and Loosen, P. Jan. 7, 1925, [Convention date]. Clutches, free-wheel. - In a cycle free-wheel hub of the gravity-ball type, the balls outnumber the ratchet teeth on the sprocket ring in the ratio of three to two. A member M, screwed on the rear hub, has recesses L for nine clutch balls b, which can fall by gravity into engagement with six ratchet teeth on the driving-sprocket c on forward drive. The surfaces p, q of the sprocket are concentric with the hub. The sprocket carries loosely in pockets twelve bearing-balls r running in races on lateral rings B. B<1>, screwed on the member M by right and left hand threads. The Specification as open to inspection under Sect. 91 (3) (a) states also that the ring B has kev sockets and may have a hole for a lubricator, and that the corners of the clutch elements are rounded to assist disengagement. This subjectmatter does not appear in the Specification as accepted.
Patent GB-854645-A (GB)
Title: Hydraulic shock-absorber
IPC: F16F9/44
Filed: 1957-02-25
Abstract: 854,645. Hydraulic shock absorbers. IRIBECAMPOS, C. M. Feb. 25, 1957 [Nov. 22, 1956], No. 6264/57. Class 108(3). A hydraulic shock absorber comprises pressure and reserve chambers L, K, formed by concentric tubes 28, 2 held between an upper sealing system and a lower valve assembly the lower end of the tube 2 fitting into a circular groove formed in a lower supporting member I which has the form of a spherical cap, and a piston rod 30 being adapted to be rotated relative to the tubes 2, 28, so as to vary the loading of a spring 19 which acts on a valve 22 controlling the flow through ports I in the piston 23. Flow through the ports I occurs on rebound movement. Further ports H controlled by a lightly loaded valve 25 permit flow on the compression stroke. The lower abutment of the spring 19 is formed by a ring 17 which is in screw thread engagement with the bore of the piston 23. The axial position of the ring 17 may be adjusted relative to the piston 23 by moving the piston rod 30 inwards until a square cross-section aperture in the ring 17 engages a correspondingly shaped member 42 which is rigid with the lower valve assembly. The latter assembly comprises a valve body 11 flow through which is controlled by a lightly loaded replenishing valve 12. A compression valve is formed by a flexible lamina 8 which covers an eccentrically disposed orifice P in a member 9. The lamina 8 and member 9 are held together by a nut and bolt 10, 7, and the deflection of the lamina 8 is controlled by a spring 5 within a housing 4 which serves to retain the member 9.
Patent GB-1218433-A (GB)
Title: Devices for picking up pieces of sheet material from a stack of pieces
Inventor: OLDROYD DAVID
IPC: B65H3/22
Filed: 1968-02-09
Abstract: 1,218,433. Separating sheets. D. OLDROYD. 26 Feb., 1969 [9 Feb., 1968], No. 6629/68. Heading B8R. A device for picking up pieces of sheet material from a stack comprises means for gripping the top piece or pieces and lifting them from the stack and tubular means for piercing the upper piece or pieces and introducing gas directly between them and the next lower piece. Separating device. Fig. 2.-Metal strips 6, 13 are mounted on one face of a vertical support 5 so that strip 6 is generally fixed to the support 5, and strip 13 is slidable over the face of strip 6 in the horizontal direction. The horizontal movement of strip 13 is limited by stops 14, (15), Fig. 1 (not shown), thereon engaging with members 7, 8 rigid with strip 6. The complete assembly, comprising members 7, 8 and strips 6, 13, can be adjusted vertically by means of slots 24, 25 in members 7, 8 and releasable bolts 23. Depending from the bottom of strips 6, 13, respectively, are a series of oppositely-slanted teeth 18, 19. In an initial position, Fig. 1 (not shown), the teeth are positioned side-by-side on the strips; after penetrating the top piece of a stack 33, strip 13 is moved to the left, as viewed in Fig. 2, so that the teeth securely grip the top-piece. The entire device, including support 5 or raised and traversed to a different location where the teeth are again moved together and the sheet is dropped. Both series of teeth 18, 19 could be movable, and the depth of penetration can be adjusted for pick-up of more than one sheet. Assisting separation.-Air is supplied under pressure through tube 30 to needle member 28, the end of which extends below the points of teeth 18, 19. The needle member is suitably adjustable in penetration by means of clamp 31 and bolts 32. Suction separator.-In an alternative embodiment, Fig. 4 (not shown), the gripping teeth are replaced by a vacuum chamber (35) contacting the top piece. A needle (36) again projects through the top piece and has air under pressure supplied through it. The pressure in chamber (35) may be increased to above atmospheric to deposit the piece after separation. Cylindrical separator.-A further embodiment, not shown, involves the forming of the two series of teeth on concentric cylinders, the teeth generally pointing axially but inclined in opposite directions circumferentially of the cylinder, the tubular needle also projecting axially.