baber/WOPTO huggingface dataset:
Patent GB-1440551-A (GB)
Title: Pitot pump with slotted inlet passages in rotor case
IPC: F04D1/12
Filed: 1974-01-21
Abstract: 1440551 Centrifugal pumps KOBE Inc 21 Jan 1974 [21 March 1973] 02821/74 Heading F1C In a pump of the type in which liquid introduced from an inlet 30 into a chamber 39 within a rotary casing 24 is removed from the periphery of the chamber by a stationary pilot tube 40 and discharged via a central duct 46 to an outlet 48, the liquid enters the chamber via an annular passage 34 surrounding the duct 46 and generally radial slots 38 formed in one end-wall 36 of the rotary casing, the inner surface 50 of the end-wall being substantially flat and perpendicular to the pump axis. Each slot 38, which is substantially uniform in cross-sectional area throughout its length, has one side open throughout its length to the chamber 39, whereby the chamber is continuously purged of gas, and is disposed at an angle to the radial direction to provide a scooping effect at its inner end. The inner ends of the slots 38 almost join, so that their combined cross-sectional area is approximately equal to the peripheral area of the annular passage 34 opposite the slots.
Patent GB-588581-A (GB)
Title: Improvements in or relating to closure devices for containers
IPC: F01P11/02
Filed: 1945-02-05
Abstract: 588,581. Closures ; venting. AUTOMOTIVE PRODUCTS CO., Ltd., and BROCK, W. H. J. Feb. 5, 1945, No. 2887. [Classes 21 and 125 (iii)] A closure device for a fuel tank filler tube or the like has a closure disc engaging the end of the tube, a dished washer normally slidable within the tube but adapted to engage the internal walls thereof when compressed axially, a clamping member within the tube for effecting such compression, means for drawing the clamping member towards the closure disc and means for preventing relative rotation between the closure disc and the clamping member or dished washer. The closure disc 13 is formed with an annular channel in which is located a packing ring 15 for engaging the end of the filler tube 10. A threaded spindle 17 carried by an outer cap 18 passes through the centre of the disc 13, and dished washer 26, and engages a nut portion 23 formed on the clamping member 24. The washer 26 and clamping member 24 each comprise a plurality of tongues, and upstanding ribs 25 on the member 24 and abutments 29 on the closure disc 14 prevent relative rotation of these parts. The ends 28 of the tongues 27 on the washer 26 may be slightly upturned, and be wider than the remainder of the tongues and the radius of curvature of the portion contacting the tube may be greater than that of the latter. An axial vent channel 35 may be formed in the spindle 17, communicating with a cross-channel 37. The inner end of the channel 35 may be closed in the event of liquid surging against it, by a loose valve member 40 carried on a U- shaped member 42 engaging the spindle 17. A chain 43 may secure the device to the tube. Instead of the nut and spindle device described, cam means may be used for compressing the washer. Specification 571,261 is referred to.
Patent GB-458057-A (GB)
Title: Improvements in and relating to earth-excavating scrapers
IPC: E02F3/64
Filed: 1936-01-30
Abstract: 458,057. Excavating. MOORE, S. S., 31, South Aurora Street, Stockton, California, U.S.A. Jan. 30, 1936, No. 2889. Convention date, Jan. 30, 1935. [Class 68 (i)] An earth-excavating scraper comprises a wheeled-frame, a bowl open in front and provided with a scraping edge, lifting means connected to the back of the bowl, and means, separate from the lifting means, whereby the bowl is suspended in the frame so that when the lifting means raises the back of the bowl, the scraping edge is raised to a less extent. A rectangular frame 1, spanned by a hollow beam 22, has a bowl 8 suspended by a cable 27 and pivoted at 12 to links 11 connected by a crossbar 13 and turning about the rear wheel axes 10 ; L-shaped links 18 are adjustably pivoted to the bowl at 12 and are hinged at C to an L-shaped lever 15 pivoted to the frame at 14 and carrying a closure 16 for the bowl. A link 19 is also pivoted at 20 to the bowl and at 21 to the lever 15. On raising the bowl by the cable 27, as it leaves digging position it tilts forwardly and when links 11, 18 reach dead centre position, the closure 16 closes the front of the bowl. On further lifting, the bowl is further tilted and the links 11, 18 pass dead centre and move the closure from the bowl. In a modification, the pivots 14 are vertically adjustable in guides and held by screws, while in Fig. 6, the closure 16 is pivoted to the lever 15 and yieldingly held by springs 32 in housings 33.
Patent GB-161743-A (GB)
Title: Improvements in or relating to holders for razor blades, and the like
IPC: B26B21/52
Filed: 1920-01-31
Abstract: 161,743. Wakefield, J. Jan. 31, 1920. Stropping - apparatus. - A holder for razor blades &c., adapted for use in the honing-device described in Specification 133,881, comprises a pair of plates a, b hinged together at m and bent or curved outwardly between the hinge and the longitudinal edge, the plates being held together with a blade between them by a clamping-member h, in the form of a channelled bar secured to, or formed on one end of, a handle k. The bottom of the bar is substantially cylindrical to receive the edge m, and the sides h are curved or bent outwardly so as tightly to embrace the curved surfaces of the plates a, b. The end of the holder remote from the handle k is provided with a cylindrical socket n to engage the supporting-rod of the honing-devide and the handle, with a grooved collar o, to engage the arch-shaped guide of the device. The hinge-pin m of the plate may be shortened to provide the socket n. The end of the hinged bladeholder may be provided with a knob, button, &c. to facilitate the withdrawal from the clamping- member. The outer edge of the plates a, b may be flat, curved, or inclined, and the inner faces may be roughened at a, b to grip the blade. When a knob &c. is provided on the holder, it is provided with a cylindrical recess to engage the supporting-rod of the honing-device.
Patent GB-703331-A (GB)
Title: Improvements in or relating to land vehicles, marine vessels or aircraft and hot-gasengines therefor
IPC: F02G1/043
Filed: 1949-02-04
Abstract: 703,331. Hot - gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 4, 1949 [Feb. 9, 1948], No. 3138/49. Class 7(1) A reciprocating engine for a vehicle,. marine vessel, torpedo or aircraft comprises as its sole source of thermal energy an accumulator and/or absorber for ther-- mal energy such that after the accumulator or absorber respectively has been initially supplied with or deprived of a quantity of thermal energy from or by an external source, the accumulator can thereupon itself constitute the hot side or cold side respectively of the engine. As shown, an engine 2 driving an aircraft propeller 3 comprises a heat accumulator 4 to which heat is supplied by the combustion of oil or gas or by an electric heater, any combustion gases being led to the member 4 by a pipe 5 and discharged through a pipe 6. Alternatively or in addition, an absorber using ice or liquid air is provided on the cold side of the engine. The thermal capacity of the accumulator may be increased by employing molten sodium or potassium <or a mixture thereof, or molten Wood's metal or a like alloy which on solidifying will liberate heat.
Patent GB-178939-A (GB)
Title: Improvements in or relating to heating apparatus of the class organised for softening parts of or for boot or shoe uppers
IPC: A43D11/14
Filed: 1921-01-25
Abstract: 178,939. Ricks, F., Richards, A. E., and British United Shoe Machinery Co., Ltd. Jan. 25, 1921. Softening.-An apparatus for softening the toeparts of uppers assembled on a last comprises a vapour-generating chamber containing water, through which chamber pass hot gas ducts leading to the compartments housing the toe-parts. Steam is passed into these hot gas ducts so that the steam is superheated and also mixed with the hot gas before reaching the toe-parts. As shown, the water chamber 3 is heated by gasburners, the combustion gases passing through flues 39 arranged in the water tank and each leading to a shoe-containing compartment. Each flue 39 may be supplied with steam from a pipe 41 under the control of a valve 45, the operating handle 55 of which moves over a graduated are The controlling-tap for the gas burners is similarly provided with a graduated arc. A third handle 75 shifts a slide controlling the area of cutlets at the top of the ducts 39. The heel of each shoe rests on a pivoted shelf 91. and each tee-part on wire gauze 31 under an arch 29 of asbestos having a thin copper backing. A water reservoir 7 provides a reserve for the chamber 3, a tap 21 and funnel 23 being used if manual operation is preferred, or an automatic feed being substituted. An electric resistance heater may be provided in place of the gas burner. According to one Provisional Specification, gutters may be provided within the apparatus to return water of condensation to the water chamber. Specification 18174/13 is referred to.
Patent GB-1527702-A (GB)
Title: Benz-(c,d)-indolyl compounds
IPC: D06P5/28
Filed: 1977-01-26
Abstract: 1527702 Benz[c,d]-indolyl compounds BAYER AG 26 Jan 1977 [30 Jan 1976] 03159/77 Heading C4P The invention comprises dyestuffs of the general formula wherein Z is OH or -NR<SP>1</SP>R<SP>2</SP>, R<SP>1</SP> is H, alkyl, aralkyl, cycloalkyl, or aryl, R<SP>2</SP> is H or alkyl, or R' and R<SP>2</SP> together form an alkylene chain optionally interrupted by one or more heteroatoms, the rings A, B and D may bear one or two 5- or 6-membered fused carbocyclic and/or heterocyclic rings and the cyclic and acyclic radicals may be substituted, and the salts thereof. Z is preferably OH and the invention further comprises boric acid esters of the above compounds of general formula wherein R<SP>1</SP> is alkyl, cycloalkyl, aralkyl or aryl. The dyes are prepared by condensing a compound of the general formula or a derivative thereof wherein HN-C=O is replaced by HN=C-S-alkyl or by HN-C(halogen) 2  with a 4-2-coumarin compound. The boron esters are prepared by reacting dyestuffs where Z is OH with boric acid and an aliphatic, cycloaliphatic or aromatic acid anhydride at 80-170 C. in an inert solvent. The dyes are used for bulk dyeing and for dyeing wool, silk, paper, synthetic polyamides, polyesters, acid modified polyesters, polymers containing polyacrylonitrile, acetate rayon and triacetate.
Patent GB-286062-A (GB)
Title: Improvements in and relating to signalling devices for use on motor cars and other vehicles
IPC: B60Q1/44
Filed: 1927-02-04
Abstract: 286,062. Thomson, D. B. Feb. 4, 1927. Road-traffic signals on vehicles.- Front and rear indicating bands c, d are mounted on pairs of rollers e, f, e', f<1>, the lower rollers f, f<1>, being spring-loaded and the upper rollers e, e<1> being actuated by Bowden wires c<1>, d<1> adapted to be controlled by a handlever n and directly by a brake-lever. The lever n and a pulley c connected to the wire cl are fast on a spindle m, and a second pulley d<2> connected to the wire d<1> is loose on the spindle m, as also is a third spring-loaded pulley l, which is connected to a Bowden wire l<1>having its other end con. nected through a helical spring to the brake-lever. Studs d<3>, c<3>, l<2> on the pulleys interengage so that the handlever n and the brake-lever control the winding and unwinding of the bands c, d, depression of the brake. lever giving the "stop" signal at the rear and leaving the front signal unaffected. The signals are illuminated by an electric lamp controlled by a switch adapted to be opened by a pin on the pulley d2 when this pulley is in the position for signalling "ahead." A second switch is provided to by-pass, when necessary, the open switch.
Patent GB-1420105-A (GB)
Title: Token or coin inlet mechanisms for token or coin operated machines
IPC: G07F1/02
Filed: 1973-01-22
Abstract: 1420105 Coin entry mechanism COMPTEURS SCHLUMBERGER 22 Jan 1973 [21 Jan 1972] 3202/73 Heading G4V A coin entry mechanism, particularly for a parking meter, comprises means 1 defining a coin insertion slot, a rotatable gate 9 normally blocking said slot and movable by a coin 14 being inserted to permit entry of said coin and locking means 7 actuable by the coin being inserted to free the gate 9 for movement. In the embodiment described, the gate 9 rotates between the walls of the insertion slot and is rotatably fast with a spring biased member 8. The locking means 7 is rotatably mounted on pivots 2, has a finger 14 projecting into the insertion slot and a stop portion 12 for engaging the member 8 and is biased towards the member 8 by a spring 13. As the coin is being inserted it acts on finger 14 to pivot the locking means 7 and free the gate for rotation on further insertion of the coin.
Patent GB-308412-A (GB)
Title: Improvements in or relating to endless tracks for vehicles
IPC: B62D55/22
Filed: 1928-02-02
Abstract: 308,412. Fowler, C. H., and Walker, H. Feb. 2, 1928. Endless-track vehicles. - Endless tracks, of the kind in which co-operating abutments or lugs on the hinged shoes restrict the relative rotary movement between the shoes and take the load coming on the track, have one of the lugs 4 of each shoe cut away below its operative portion to admit of the passage therethrough of the adjacent lug of the next preceding or following shoe so that the forward face of one of the lugs may engage the rear face of the other lug. Each shoe 1, Figs. 1 and 3, is formed integrally with the lugs 4 and with ears 3 for the joint pins 2. In the construction shown in Fig. 5, one of the lugs 4 of each shoe is inclined so as to extend beyond the adjacent pivot pin and engage the inclined underside of the coacting lug on the next shoe. A plurality of lugs may be provided on the adjacent ends of each shoe, and sprocket-engaging parts may be formed on the shoes.
Patent GB-1382481-A (GB)
Title: Thread tension adjuster in a twisting spinning or spooling machine
IPC: D01H13/10
Filed: 1972-01-24
Abstract: 1382481 Thread tensioner MASCHINENFABRIK HEINZ WELLER 24 Jan 1972 [23 Jan 1971] 3284/72 Heading DID  In a thread tensioning device of a twisting, spinning or spooling machine, when tension in a thread 2 rises cranked lever 6a, 6b is pivoted with pivotable shaft 7 against the bias of spring 9 to actuate switch 10 to slow the machine speed. When the tension falls the cranked arm is pivoted to actuate switch 11 to raise the machine speed. Spring 9 is attached to an anchorage which is adjustable to vary spring tension. Further arms 6a pivot shaft 7 and arm 6b in response to tension changes in further running threads 2. The switches may be contactless switches.
Patent GB-1132371-A (GB)
Title: Improvements in or relating to slide projectors
IPC: G03B23/04
Filed: 1966-01-25
Abstract: 1,132,371. Slide projectors. BELL & HOWELL CO. Jan.25, 1966 [Jan.25, 1965], No.3293/66. Heading G2J. A slide projector has apparatus for maintaining the focus of projected slides by purely mechanical means in which the position of the film plane is sensed by a convex glass or transparent plastics member 72 secured to the projection lens carriage 46 at a fixed distance from the lens 24 on the optical axis, the carriage being urged towards the slide 14 by spring 74 against counterbalance 79. Carriage 46 rests on balls running freely in guiding grooves 40 and therefore follows the transparency plane when the slide "pops" due to heat. Link 110 is pivoted at 114 by spring 120 so that arm 122 shifts carriage 46 and member 72 away from the slide when the manually-operated slide changer 100 is withdrawn. Arm 122 is swung clear of the carriage when the slide changer is pushed to the projection position. Coarse focusing is by manually pushing lens 24 relative to carriage 46 on which it is frictionally held, and fine focusing is by helical screw. Rotation of slide changer knob (94) indexes the slide magazine (96), as in Fig. 1 (not shown).
Patent GB-1491146-A (GB)
Title: Extraction tube for polylactam granules
IPC: B01D11/00
Filed: 1975-01-27
Abstract: 1491146 Washing polylactams BASF AG 27 Jan 1975 [31 Jan 1974] 3391/75 Heading C3R [Also in Division B1] Polylactam granules are treated to remove low molecular components by counter-current washing with hot water in an extraction tube comprising granule inlet 3 and outlet 4, water inlet 5 and outlet 6, the tube containing a heat exchanger 7 which divides the tube into lower and upper regions having a volume ratio of 50 : 50 to 85 : 15 and which has ducts 8 for the passage of granules, the upper surfaces of the heat exchanger being inclined towards the ducts at an angle of 45-83 degrees to the horizontal (angle # in Fig. 2). One or more similar heat exchangers may be mounted below that shown. Preferred polylactams have a particle size of 1 to 5 mm. and a relative viscosity of 1À5 to 5 as measured in a 1% w./w. solution in 96% w./w. sulphuric acid at 25‹ C. Polymers of lactams having 4 to 12 carbon atoms are specified, particularly caprolactam. After formation they may contain up to 15% w./w. of monomeric or oligomeric (di, tri, tetra) lactams which, in the examples, is reduced to 0À4%. A protective gas may be present but the steam formed is generally sufficient. The extraction tube may be provided with means, e.g. a pump, to pulsate the stream of water.
Patent GB-741238-A (GB)
Title: Solutions of alpha-chloroacrylonitrile polymers
Inventor: BASCH HEINZ PETER
IPC: C08J3/09
Filed: 1953-02-07
Abstract: Polymers of alpha-chloroacrylonitrile are dissolved in a solvent mixture comprising nitromethane mixed with water and/or phenol or a nuclear homologue thereof, such as xylenols, cresols, propyl phenols, butyl phenols, and resorcinol. Chloroacrylonitrile polymers specified are the homopolymer and copolymers with vinyl acetate, vinyl and vinylidene chlorides, acrylic acid, methyl acrylate, ethyl fumarate and maleate, styrene, isobutene, butadiene, and vinyl pyridine, the copolymers preferably containing at least 85 per cent of chloracrylonitrile units.  Fibres and films may be prepared from the polymer solutions by the usual processes.  Specifications 741,237 and 741,239 are referred to.
Patent GB-143290-A (GB)
Title: Improvements in or relating to submarines or other hollow vessels adapted to rise and fall in fluids by varying their displacement volume
IPC: B63G8/22
Filed: 1919-02-13
Abstract: 143,290. Spencer, A. F., and Merton, H. Feb. 13, 1919. Ballasting. - Comprises improvements in submarines and other hollow bodies, such as balloons and caissons, adapted to rise and fall in fluids by varying their displacement by means of a telescopicallyextensible wall portion situated in a chamber communicating with the exterior fluid. The sliding portion 14 is housed in a chamber 11 which may form part of the general contour of the vessel, and is provided with a central guide 12 secured at each end to the chamber 11. When applied to a submarine vessel, the holes 16 for the discharge of the fluid from within the chamber 11 may be situated on the rear face of a step or shoulder surrounding the chamber 11 so that the forward motion of the vessel is not impeded.
Patent GB-399078-A (GB)
Title: An improved picture-projecting apparatus
IPC: G03B21/00
Filed: 1933-02-06
Abstract: 399,078. Changing signs. JUSTICE, A. V., 25, Regent Street, Nottingham.- (Neustadt, E. ; 228, Kurf³rstendamm, Berlin.) Feb. 6, 1933, No. 3558. [Class 3 (i).] Optical-projection apparatus.-In apparatus comprising projection screens arranged to form a hollow pyramid and projectors disposed opposite the screens, the hollow pyramid is arranged at the bottom of a frame comprising inclined plates carrying the projectors, and an endless picture strip is carried by tension rollers which bend the strip into a pyramidal shape and cause simultaneous changes of pictures in the projectors ; hollow cylindrical shutters may be provided. As shown, projection screens 3 form a square pyramid, and projectors 1 are carried on a frame 2 by inclined plates 4. The plates 4 have slots 7 serving as guides for a picture strip 8 passing over rollers 17 by which it is tensioned. The strip may comprise a metal band provided with apertures over which interchangeable diapositives are mounted and with perforations engaged by a toothed wheel 10 driven by maltese-cross gearing in a casing 12. Open-ended cylindrical shutters 18 having axes perpendicular to shafts 19 on which they are mounted may be rotated by an endless chain 21 and chain wheels 20, one shaft 19 being driven by maltese-cross gearing in a casing 22. The maltese-cross gearings are respectively driven by a motor 16 through worm gearing 14 and through bevel gearing 24 and worm gearing 23.
Patent GB-910035-A (GB)
Title: Improvements in or relating to generators
IPC: H02K11/04
Filed: 1961-01-31
Abstract: 910,035. Inductor alternators. BOSCH G.m.b.H., ROBERT. Jan. 31, 1961 [Feb. 4, 1960], No. 3561/61. Class 35. A vehicle three-phase generator has mounted radially thereon six silicon rectifiers 27 (Fig. 2) located in the cooling bodies 26 secured to the inner side of an annular supporting member 20 so that when the generator is fitted to a vehicle with its longitudinal axis extending in the direction of travel the rectifiers may be exposed to the air stream of the vehicle. The generator construction is generally similar to that described in Specification 880,951.
Patent GB-244297-A (GB)
Title: Improvements in machine for grinding cylindrical articles
IPC: B24B37/02
Filed: 1925-02-09
Abstract: 244,297. Dehn, F. B., (Liberty Screw Products Co.). Feb. 9, 1925. Rollers, rods, and the like, treating.- Cylindrical articles, for example, rollers or piston-pins, are ground between two grinding wheels 25, 30 mounted coaxially and driven in opposite directions and at different speeds. The wheel 25 is carried by a spider 40 having slight axial play on, but rotatable with a shaft 21 supported in a sleeve 24, which is adjustable axially in a head 12 adjustable vertically on the machine frame 10. The wheel 30 is carried by a hollow shaft 27 mounted in bearings 11 on the frame. The work 36 is carried by a cage 35 which is located between the grinding-wheels, and is rotatably mounted on a pin 34 adjustably carried by a head 32 and eccentric to a fixed rod 31 carrying the head; the rod passes through the shaft 27 and is secured by a pin 33. The rollers 36 are so arranged as to make a small angle with radii of the carrier 35. Powdered grinding-material may be used with the wheels; the pressure of the wheel 25 on the work may be increased by weights on the spindle.