baber/WOPTO huggingface dataset:
Patent GB-176809-A (GB)
Title: Improvements in and connected with means for the supply of combustible mixture to internal combustion engines
IPC: F02B1/00
Filed: 1922-03-13
Abstract: 176,809. Daimler - Motoren - Ges. March 12, 1921, [Convention date]. Spray carburettors.- An internal - combustion engine, adapted to be supplied with compressed air, has the main fuel tank at a lower level than the carburettor, the fuel being normally raised by pressure into an intermediate container from which it flows by gravity, but when compressed air is supplied to the engine the intermediate container is closed to the atmosphere and to the fuel supply and placed under pressure. Fig. 1 shows an induction pipe a having a nozzle c supplied from a float chamber d, which is fed from an intermediate chamber g. Fuel is fed from a tank e under pressure through a pipe f to a float-controlled valve n in the container g, which also has a valve m opening to the atmosphere. When a pump b for supplying compressed air to the induction pipe is put into operation the valves m, n automatically close, and the chambers d, are put under pressure through the pipes i, h. Fig. 1<a> shows the container g, in which a hollow valve n is normally raised by a spring n<2> against a seating n<3>, the fuel flowing into ports n<4> in the valve and into the container through ports n<5> which are controlled by a float l. When compressed air is admitted the valve n is depressed to close the fuel inlet, and a valve m closes air ports m<2>. A modification is described in which fuel and air valves on the container are mechanically actuated by linkage connected to the pump control or to a spring-loaded piston subjected to the delivery pressure of the pump b.
Patent GB-907908-A (GB)
Title: Improvements in or relating to devices for the lateral displacement of crop lying onthe ground
IPC: A01D78/00
Filed: 1959-03-03
Abstract: The subject-matter of this Specification is included in that of Specification 913,237 but includes the additional feature that the distance between the stub axles and the crank-pins of the rake-wheel-supporting cranks does not exceed 1/6 th of the rake-wheel diameter.
Patent GB-609522-A (GB)
Title: Improvements in or relating to conveyers for glass sheets
IPC: B65G49/06
Filed: 1946-03-08
Abstract: 609,522. Endless-belt conveyers. UNION DES VERRERIES MECANIQUES BELGES SOC. ANON. March 8, 1946, No. 7354. Convention date, April 25, 1945. [Class 78 (i)] A conveyer for glass sheets comprises a table 4 having a flat continuous imperforated surface provided with grooves 7 in which run belts 1 of such a thickness that the flat top of each belt projects slightly above the table, thereby allowing air cushions to form in the spaces between the belts when a glass sheet falls thereon. Each sheet is deposited by first placing its lower edge against locating abutments 8, 9. and then allowing it to fall. A tensioning device 6 is provided.
Patent GB-1489468-A (GB)
Title: Production of l-phenylalanine
IPC: C12P13/22
Filed: 1975-02-21
Abstract: 1489468 Preparation of L-phenylalanine PFIZER Inc 21 Feb 1975 [22 Feb 1974] 7482/75 Heading C2C The invention comprises a process for the preparation of L-phenylalanine which comprises (a) aerobically propagating a phenylalanine ammonia-lyase producing microorganism in an aqueous nutrient medium until substantial amounts of phenylanine ammonia-lyase are produced, (b) contacting the phenylalanine ammonia-lyase, optionally contained in the cells of the microorganism, from step (a) with NH 4 <SP>(+)</SP> and trans-cinnamate ions at a molar ratio of at least 2:1, the concentration of cinnamate ions being between 0À5 and 10% w./v. relative to the reaction mixture and allowing the reaction to proceed at 30‹ to 40‹ C. and pH 8À0 to 10À5 until the conversion to L-phenylalanine is substantially complete, and (c) separating and recovering the L-phenylalanine from the reaction mixture.
Patent GB-1099085-A (GB)
Title: Rotary positive displacement units
IPC: F04C3/06
Filed: 1966-02-21
Abstract: 1,099,085. Grinding; milling; planing. E. WILDHABER. Feb. 21, 1966, No. 7513/66. Headings B3D, B3K and B3L. [Also in Division F1] In a rotary pump or motor comprising a pair of rotors 34, 35, Fig. 14, journalled in a housing with the rotary axis 31 of one inclined with respect to the rotary axis 30 of the other and formed with lobes meshing around their whole peripheries with one rotor having one more lobe than the other (see Division F1), the rotors are produced by continuously rotating a blank about its axis and imparting motion to a tool to effect relative feed between the tool and blank about an axis which intersects the blank axis, so that the tool moves from the top to the bottom of a tooth and then from the bottom to the top of a tooth. To produce large size rotors, a milling cutter or grinding wheel 62, Fig. 9, is disposed so that its axis 63 intersects the axis 30 of a blank 34a at 0. The cutter 62 rotates about its own axis for stock removal whilst the blank turns slowly on its axis 30 with the cutter fed about apex 0. Another position of cutter 62 is shown dotted at 62<SP>1</SP>. The feed motion is a slow oscillating motion between two end positions timed to the turning motion of the blank. The mating rotor 35 may be produced by the same cutter using a different timing between the turning motion of the blank and the angular feed motion between the cutter and the blank. The rotors can also be produced by tool reciprocation. An edged tool 64 or grinding wheel 64<SP>1</SP>, Figs. 10, 11, having a convex arcuate cutting edge 65 centred at 67 reciprocates lengthwise towards and away from the apex 0 along line 70 to produce the concave bottom of the rotor lobe. The side surfaces of the lobes are produced by feeding the blank 34 angularly about an axis 59 passing through the apex 0 and perpendicular to the drawing plane (Fig. 10). Dotted lines 34<SP>1</SP> show blank in tilted position where a straight-line element of lobe side is produced. To cut or grind all the time along a fixed line 70, the tool or wheel is fed in a circular path 72 about an axis coincident with line 70 at a rate so that the inclination of tool coincides with the profile inclination of the workpiece. Spiral teeth may be cut by adding a continuous turning motion to the blank and timing the reciprocations with the added motion. In another embodiment the reciprocating tool or wheel can oscillate about an axis (77), Fig. 13, (not shown) which lies in a plane perpendicular to the line (70). Additional tool motion is in this plane such that the tool profile (73) always passes through a point where line (70) intersects the plane.
Patent GB-853997-A (GB)
Title: Improvements in gas turbine nozzle structures
IPC: F01D11/00
Filed: 1958-03-10
Abstract: 853,997. Elastic-fluid turbines. GENERAL ELECTRIC CO. March 10, 1958 [April 18, 1957], No. 7583/58. Class 110 (3). A nozzle assembly comprises inner and outer annular members 38, 36 spanned by nozzle vanes 34, the upstream edge of the outer member 36 carrying radial pins 110 engaging openended slots in an annular rabbet 106 extending from the turbine casing 104 and the downstream edge abutting a flange 136 on the casing, thus allowing axial and radial movement of the assembly relative to the casing without misalignment. A sealing member 60 having a lining 86 of silver co-operates with labyrinth sealing-rings 9 forming part of the cooling-plate 6 carried by the rotor and is mounted by means of axially-directed pins 64 engaging radial slots in the part 54 of the inner annular member 38 to permit relative radial movement. The inner annular member is provided with a seal 48 at its upstream edge also and is divided into a number of segments by a plurality of axiallyextending slits which are sealed by plates 82, Fig. 2 (not shown), secured to the segments along one edge only, so as to allow relative movement between adjacent segments. A sealing- ring 10 with a plurality of fingers extending between the shanks 11 of the blades 5 also cooperates with the plate 6.
Patent GB-687359-A (GB)
Title: Improvements in mechanically-operated article delivery machines
Inventor: BOURACIER CYRIL EUGENE
IPC: G07F11/54
Filed: 1950-03-28
Abstract: 687,359. Coin-freed machines delivering articles from piles in rotary drums; effecting sales. ICEMATIC, Ltd.. Feb. 26, 1951 [March 28, 1950]. No. 7735/50. Classes 27 and 116. Delivering articles from piles in rotary drums. In the machine illustrated the bottom article is delivered from one of several shoots each disposed in a corresponding channel 7, Fig. 1, in a drum, 3 when the drum is turned to bring the shoot over an aperture 6 in a fixed platform 4. The drum 3 is supported by a shaft 5, Fig. 3, from a bearing 5a, 5b, 5c and carries rollers 5d, Fig. 1, at its upper end for engagement with a runway in a fixed bearing ring 5a. Each time a lever, Figs. 3 and 4, is oscillated 'about the shaft 5 a spring- biased pawl 14 carried by it engages a ratchet wheel 13 on the shaft to turn the shaft and drum through the angle subtended by adjacent channels 7. This movement is limited by a check pawl 19 biased by a spring about its pivot on a fixed bracket 20 into engagement with a second ratchet wheel 18 on the shaft. 5. The pawl 19 is withdrawn from the ratchet. wheel 18, .during part of the motion of the lever 16, by engagement of a pin 23, Fig. 3, on the lever with a set screw 24, Fig. 4, on the pawl 19: thus one tooth only of the ratchet wheel 18 slips past the pawl 19 at each oscillation of the lever 16. To prevent the ratchet wheel 18 rebounding from the pawl 18 a spring-biased non-return pawl 25 also-engages the driving ratchet wheel 13 and is arranged so that a tooth of the ratchet wheel 13 slips past the pawl 25 immediately before the pawl 19 arrests the ratchet wheel 18. The lever 16 is oscillated through a link 17 from operating means which may be coin freed. A turnbuckle 21 provides for adjustment of the apparatus. The pawl 14 may be withdrawn,. to permit adjustment of the drum, and may be held in its withdrawn position by turning it so that a pin 26 which it carries abuts against the end 27 of the pawl housing. The machine, which is refrigerated, may include features of Specifications 679,752 and 684,918 which are referred to.
Patent GB-1466214-A (GB)
Title: Transport vehicle
IPC: B60P1/30
Filed: 1975-02-25
Abstract: 1466214 Vehicle suspension; tow bars K BERGLUND and S NORDLUND 25 Feb 1975 [15 March 1974] 7779/75 Headings B7D and B7T [Also in Division B8] A vehicle having a U-shaped frame 3 lowerable to the ground and raisable therefrom to engage and lift a load such as a container has a tow bar 5 pivoted at 15 to the frame 3 of the vehicle and a power actuator ram 17 having its cylinder disposed in the beam 14 of the tow bar and its piston 19 connected to lugs 23 on the frame 3 to cause pivoting about 16. The suspension of the wheels 9 is by supporting legs 10 pivoted at 25 to the frame 3 and having an actuator ram 27 with its cylinder 28 secured in the frame 3 and its piston 29 connected at 32 to the leg 10 to cause it to pivot about 25. In another arrangement the rams 17, 27 are placed externally of the pivoting members either above or below the pivot.
Patent GB-824606-A (GB)
Title: Production of high octane motor fuels
IPC: C10L1/06
Filed: 1958-03-11
Abstract: <PICT:0824606/IV (b)/1> Naphtha boiling in the range 110-400 DEG  F. is upgraded to 100+ octane number (research clear) by catalytic reforming in the presence of hydrogen at 800-975 DEG  F. and up to 400 p.s.i.g. to give a reformate of octane number at least 90, vaporizing and passing the vapours through a 5   molecular sieve to remove normal paraffins.  The virgin naphtha introduced by line 10 may be a wide cut, e.g. boiling in the range 110-375 DEG  F., a narrow light cut, e.g. 110-250 DEG  F., or a heavy cut, e.g. 200-350 DEG  F.  The C5 fraction boiling below 150 DEG  F. is not upgraded to as great an extent but its presence is not harmful.  The naphtha is reformed in zone 11 in the presence of recycle hydrogen from line 12. Wide cut or heavy naphthas may be treated conventionally at 100-400 p.s.i.g. and 850-975 DEG  F. with a molybdena-alumina catalyst or about 200 or 300 p.s.i.g. or higher with a platinum-alumina catalyst. Light naphthas are preferably treated with a platinum-alumina catalyst at 0-125 p.s.i.g.  The amount of recycle gas may be 500-5000 S.C.F. per barrel of feed. Regeneration of the catalyst, which may be used in fixed, moving or fluidized beds, is effected with air, platinum catalysts beng also rejuvenated with a halogen or halogen compound.  The effluent is separated in separator 14 into gaseous and liquid product and the latter is separated into n-paraffins and other hydrocarbons using a 5   molecular sieve.  This feed may be pretreated to dry and purify it by passage through a 4   sieve. The feed is then vaporized and treated in zone 20 at 175-425 DEG  F., 0-several hundred p.s.i.g., and flow rates of 0.1-5 vol./vol./hr. Any gases are separated from the effluent in line 21 in separator 22 and recycled, e.g. as a desorbing agent.  When the sieve is saturated, the normal paraffins are desorbed by introducing an olefine, e.g. propylene, or other desorbing agent via line 25 and separating the desorbing agent from normal paraffins in separator 27. These normal paraffins may be recycled to the reforming zone by line 35 or fed by line 31 to conventional isomerization or aromatization in zone 32, hydrogen being obtained if necessary from line 12 by line 33, and the aromatized or isomerized product mixed with the reformer effluent by line 34.
Patent GB-129241-A (GB)
Title: Improvements in Chucks for Holding Drills, Taps, Reamers and like Tools and Bars.
Inventor: CLARE CHARLES HENRY
IPC: B23B31/20
Filed: 1919-03-28
Abstract: 129,241. Clare, C. H. March 28, 1919. Chucks.-A chuck for holding drills, taps, reamers, and like tools or bars particularly parallelshank drills, consists of an internally threaded shank engaging the left-hand threaded end of a split taper sleeve so that as the chuck commences to rotate the sleeve is forced outward to engage an internally coned removable nose-piece. The shank a has an external right-hand thread to secure the coned nosepiece c, and an internal left-hand thread to engage a similar thread on the tapered split sleeve b'. The inner end of the sleeve may be closed except for a flat-sided slot b<3> to receive the drill &c. shank, or may be open to allow the drill, bar, &c. to project any desired distance into the shank. The drill &c. is inserted in the sleeve and pressed against the work, and the shank is rotated. The sleeve is held stationary by friction between the drill and the work, and thus moved forward by its screw-thread into the nose c, which closes it on the drill &c. The drill &c. is released by rotating the nose c, which may be knurled or may have flats to engage a spanner &c. The nose may be secured to the shank by engaging cam surfaces or eccentrics.
Patent GB-177173-A (GB)
Title: Improvements in multiple-control apparatus for electric railways with motor-actuatedmain switch drums
IPC: B60L15/32
Filed: 1922-03-17
Abstract: 177,173. Akt.-Ges. Brown, Boveri, et Cie. March 17, 1921, [Convention datel. Addition to 126,278. Master-control systems.-The arrangement of apparatus described in the parent Specification for effecting step-by-step and follow-up movements of a main controller shaft e by means of a local motor a and a remote master-controller i is modified in the following respects. (1) A magnetic locking-device 10 subject to a current-limit relay 14 is adapted to check the starting automatically in case of too rapid acceleration. Another relay 15 provides for temporary supersession of the checking action by repeated closing and opening of an emergency hand switch B. A third relay 16 puts the checking magnet out of action when the master controller is at zero. (4) The stationary contacts 3, 4 of the repeating switch u, v are lengthened so as to cause the controller shaft e to travel through several starting steps in succession for one setting of the master controller, which is further provided with additional positions for series and parallel control of the train motors.
Patent GB-256888-A (GB)
Title: Improvements in steadying devices for photographic cameras
IPC: F16M13/04
Filed: 1926-03-23
Abstract: 256,888. W÷rsching, R. March 23, 1926. Steadying devices for hand cameras. - A device of the kind comprising a flexible element such as a chain or cord connected at one end to the camera &c. and at the other to a fixed point beneath the camera &c., carries a device which screws into the camera base in the hole usually provided for securing the camera to a stand. As shown in Fig. 1, a chain a secured at one end to the ground or held thereon by the operator's foot, is threaded at the other end through a block d secured to the base of the camera b, and the free end h is hooked to any convenient link of the chain to suit the height of the operator. In a modification, a cord having at its lower end a loop for the operator's foot, is threaded at its upper end through a tapering hole in the block d and is clamped therein by a tapering wedge. Alternatively, the steadying element may carry a ring or eyelet having a stem which screws into the base-plate of the camera.
Patent GB-485797-A (GB)
Title: Improvements in and relating to the treatment of materials containing tantalum and niobium
IPC: C22B34/24
Filed: 1937-03-19
Abstract: Materials containing tantalum or niobium or both are reduced by means of calcium carbide.  The carbide may be used in such limited proportion that the niobium is preferentially reduced, giving an alloy product in which the ratio of niobium to tantalum is higher than in the initial material.  The reduction may be effected in the presence of iron whereby ferro-alloys are obtained, and such alloys may be refined by means of oxides of niobium or of niobium and tantalum.
Patent GB-1390614-A (GB)
Title: Extrusion
IPC: B29C48/05
Filed: 1972-02-22
Abstract: 1390614 Cooling extrudate IMPERIAL CHEMICAL INDUSTRIES Ltd 10 April 1972 [14 April 1971 22 Feb 1972] 9350/71 and 8108/72 Heading B5A [Also in Division F4] A thermoplastics extrudate 2, Figs. 1, 3, is cooled by passing it down an inclined trough 4 down which water 3 or other cooling liquid flows at a higher speed than that at which the extrudate emerges from die 8, and the extrudate is drawn away from the trough at the same speed or slower than the water flow. The thermoplastics material (examples given) is supplied by a screw extruder 1 or through a valve from the base of an autoclave 70 (Fig. 6, not shown) to a multi-orifice die 8 to emerge as strands 2. Each strand passes down a separate V-section or flat-bottomed channel of the trough 4 and across a gap into channels 12 from where it is drawn by a Venturi 16 through tubes 18 to cutter 21. Air is supplied to the Venturis and suction applied to the tubes 18 to remove water. Water 3 from the end of the trough 4 and from the strands runs back down channels 12 to a drain 14. The Venturi tubes may be replaced by a single-slit Venturi connected directly to the trough 86 (Fig. 7, not shown) and operated by water to increase cooling. In Fig. 4 cooled water from tank 21 pours over a weir and down an inclined trough 12 where strands 18 are extruded downwardly and deflected along the trough by a water curtain (not shown) at C. The strands 18 are carried by a perforated conveyer 14 to a cutter 16 while the water falls through the conveyer on to tray 43 or into tank 42 for recirculation. The cutter may be positioned between the trough 12 and the conveyer 14.
Patent GB-319194-A (GB)
Title: Improvements in or relating to cinematographic colour projecting apparatus
IPC: G02B27/14
Filed: 1928-03-17
Abstract: 319,194. Chapman, W. March 17, 1928. Grant of Patent opposed. Colour kinematography. - Colour-record images P<1> p<2>, Fig. 12, each having an axea approximately a quarter that of a standard image, and arranged in pairs in each standard image area in the manner shown, are projected by means of two sets of lens elements the axes of which intersect a diagonal of the gate at points one quarter of the length of the diagonal from the intersection of the diagonals; the lenses are cut to provide meeting edges the junction plane of which passes through the common corners of the images, and a septum S is provided in this plane to divide the light beams. The lens elements L' L<2>, Figs. 3 and 4, may be mounted in pairs in separate cells each having a groove G fitting over a ridge R in an adjoining cell, and the cells may have holes H<1> H<2> to receive bolts. One or both of the colour screens used with the lenses may be slightly prismatic and be rotatable to secure registration of the images on the screen; the complete lens unit may also be rotatable. In a modification, one of the lenses may be mounted on a plate on which a block carrying the other lens may be adjustable in a direction parallel to a line joining the lens centres. A construction of septum is described which carries mask elements serving to form the necessary gate apertures, and is adjustable rotarily and to and from the gate. Specification 319,195 is referred to.
Patent GB-690177-A (GB)
Title: Automatic stop motion for circular knitting machines
IPC: D04B35/10
Filed: 1950-03-31
Abstract: 690,177. Knitting-machines. PLANCK, A. March 31, 1950. [April 1, 1949] No. 8187/50. Class 74 (ii). In an automatic electric stop motion for circular machines, resilient contact fingers 14 held rigidly by one end in a rotating currentdistributing ring 17 and bearing by their free ends on the fabric 13 supported by a countercontact such as the needle cylinder 2, are of such cross-section that the free end of each finger vibrates transversely in a plane containing the finger axis so as to traverse a zigzag path in a narrow band lying about its spiral mean path. The fingers are arranged with their free ends leading somewhat in the direction of rotation when viewed from above, as in Fig. 2. The free ends are formed into elbows 15, so that they may not be caught up in the fabric. The ring 17 may be rotated from one 10 of carriers 10, 11 for the lapping rings 8, 9 of a circular warp machine, by contact of arms 19 with the heads of screws 21 in the carrier; and the finger assembly may thus readily be lifted out of and replaced in the machine. The circuit may energise an electromagnet 24, withdrawing its core 28 from the path of a spring-urged clutch-withdrawal lever 30 ; or it may energize a relay 35 to open a switch 36, 37 in a machine-driving motor circuit.
Patent GB-101007-A (GB)
Title: Improvements in and relating to Expanding Bracelets and the like.
IPC: A44C5/08
Filed: 1916-06-10
Abstract: 101,007. Payton, Pepper, & Sons, and Feakes, P. June 10, 1916. Bracelets and the like.-In an expanding bracelet, a yoke-piece d is used in conjunction with each inner link b and pair of outer links a, and one end of each inner link is connected to the outer link by a pin c, on which the inner link is free to turn and slide. Each yoke d is provided with arms g working in the hollow outer links and connected by cranked portions j to arms k working in the inner link, and with pins h, n, to which the usual controlling-springs e, f are attached; a strengthening- bar o may also be provided. The inner face of each outer link a is formed with a flange which is cut away at p, as shown in Fig. 9, to permit the irsertion of an arm g of the yoke-piece.