baber/WOPTO huggingface dataset:
Patent GB-1016518-A (GB)
Title: Novel tetrahydro-benzo[a]quinolizine derivatives and a process for the manufacture thereof
Filed: 1963-08-21
Abstract: The invention comprises tetrahydro-benzo[a]-quinolizines of the formula <FORM:1016518/C2/1> in which R1 is an alkyl, aryl or haloaryl group, R2 is an alkyl, alkenyl or aralkyl group, each of the symbols R3, R4 and R5 represents an alkoxy group or one is such a group and the other two collectively are an alkylenedioxy group and the broken lines indicate bonds to optional R-groups and wherein the ring C is associated with one cyclic ethylenic bond, and acid-addition salts thereof.  The compounds are prepared by reacting a 2-hydroxy-benzo[a]-quinolizine of the formula <FORM:1016518/C2/2> wherein R1 to R5 and the broken lines are as defined above, or an acid addition salt thereof, with a dehydrating agent, e.g. a mineral acid.  2 - Hydroxy - benzo[a]quinolizines of the Formula II are prepared by (a) reacting an appropriate 2 - oxo - hexahydro - benzo[a]-quinolizine with an appropriate metal-organic acetylene compound, hydrolysing the condensation product and completely hydrogenating the acetylene residue in the 2-position, to form compounds of the a -series, or (b) by reacting an appropriate 2-oxo-hexahydrobenzo[a]-quinolizine with a Grignard compound of the formula R1-Mg-halogen, and hydrolysing the condensation product. Pharmaceutical compositions having sedative and anti-emetic properties for enteral or parenteral administration comprise a compound of the invention together with a pharmaceutical carrier. The compositions may be formulated as tablets, dragees, capsules, suppositories, solutions, suspensions or emulsions.
Patent GB-793269-A (GB)
Title: Improvements in or relating to reservoir writing instruments of the ball-point type
Inventor: BAGRIT LEON
IPC: B43K7/00
Filed: 1955-11-18
Abstract: 793,269. Reservoir pens. STEPHENS, Ltd., H. C. Nov. 19, 1956 [Nov. 18, 1955] No. 33132/55. Class 146(3) A ball-point pen comprises a writing unit 1 wherein an ink reservoir tube 2 has two writing points 6, 7, one at each end thereof, each point being supplied with ink from a separate column of ink one column 3 extending for a major portion of the tube; located between the two columns of ink an air vent 5 is provided in the wall of the tube 2. The tube 2 is of capillary size and of transparent synthetic plastic material. The unit is inserted in a barrel so that the point 6 is used for writing. When the ink column 3 is exhausted, the unit is removed from the barrel and reversed so that the point 7 can be brought into use until a new refill is available. According to the Provisional Specification, the two columns may contain inks of different colours and the unit may be mounted in a barrel so that a writing point projects from each end.
Patent GB-601649-A (GB)
Title: Improvements in or relating to lens systems
IPC: G02B13/00
Filed: 1945-12-07
Abstract: 601,649. Lenses. SOC. GENERALE D'OPTIQUE, SOC. ANON. DES ANCIENS ETABLISSEMENTES HUET & COMPAGNIE & JUMELLES FLAMMARION. Dec. 7, 1945, No. 33143. Convention date, Dec. 19, 1944. Drawings to Specification. [Class 97 (i)] In a lens comprising two convergent components enclosing a bi-concave divergent component the axial thickness of the latter is greater than 8 per cent of the focal length of the lens. Data are given for an example in which all three components are simple lenses.
Patent GB-645068-A (GB)
Title: Improvements in magnetic wire recording
IPC: G11B25/08
Filed: 1947-12-17
Abstract: 645,068. Magnetic recording apparatus. RADIO CORPORATION OF AMERICA. Dec. 17, 1947, No. 33320. Convention date, Jan. 31. [Class 40 (ii)] In a magnetic wire recording apparatus, sideways rolling or twisting of the wire is prevented by imparting to it a curved set additional to the natural curvature produced by coiling, by running it around a small rod or a grooved pulley which has a flat-bottomed groove having outwardly-inclined flat walls. In a preferred embodiment, Fig. 2, the wire is passed from the take-off reel 1 to the take-up reel 2 over grooved intermediate pulleys 4,5, the rod R, and transducer 11 in such a manner that the curvature of the wire is always in the same direction.
Patent GB-381008-A (GB)
Title: Improvements relating to holders for boot and shoe laces
IPC: A43C7/00
Filed: 1931-12-01
Abstract: 381,008. Lacing-fastenings ; buckles. GROMOLL, W., 31, Wollinerstrasse, Berlin. Dec. 1, 1931, No. 33350. Convention date, March 7. [Class 43.] In lace holders for boots and shoes, an end of the lace is adapted to be passed through a hole c in the holder a and i s finally clamped in a slit b. The holder is provided with a projection d standing up from the plane of the holder, and is adapted to be turned about the lace in the hole c as a pivot into a position between the upper f and the tongue g, Fig. 4. The projection d serves as a stop in this position and also as means for moving the holder back. Movement of the foot does not tend to displace the holder when in position. The other end of the lace is held in a lower eyelet h by a flat arresting member or buckle. Two or more clamping slits may be provided in the holder and the end of the lace looped therebetween.
Patent GB-610068-A (GB)
Title: Improvements in or relating to rotary hydraulic power devices
IPC: F04C2/20
Filed: 1945-12-11
Abstract: 610,068. Hydraulic clutches. REYNOLDS METALS CO. Dec. 11, 1945, No. 33437. Convention date, April 27. [Class 69 (ii)] [Also in Group XXVI] A multi-cylinder hydraulic pump comprises parallel annular cylinders 11 ... 11xxx containing rotors, on a shaft 12, each with a radial, tooth-like piston, the pistons coacting with recesses 3a, in a common abutment 3, and a delivery-pressure controlled valve 41 which may cut out delivery ports 42, 42x, &c. as a piston 25 is moved to the right under increasing delivery pressure. The abutment shaft is coupled to the shaft 12 by gears 15, 15x. An inlet manifold supplies the cylinders 11 ... 11xxx and each cylinder has a delivery port 42 &c. leading to a cylinder 43 connected with an outlet 45, or a byepass 44, leading back to the fluid supply. Under low back-pressure from the outlet 45, which may lead to a hydraulic tool or engine, the piston 41 is pressed to the left of the cylinder 43, as shown, by a spring 28, and all fluid delivered from the cylinders 11 ... 11xxx through ports 42 &c. passes into the cylinder 43 and through the byepass 44. As the speed of shaft 12 is increased, the pressure in the cylinder 43 rises, fluid being forced through holes 26a in a wall 26, and the piston 25 is forced to the right causing the piston 41 to cut out the byepass 44, and, later, outlets 42, 42x, &c. until only the cylinder 11xxx is delivering fluid to the outlet 45. With decrease in load and resulting decrease in pressure in cylinders 43, the spring 28 gradually forces the piston 41 to the left resulting in the circulation of a larger volume of fluid at a lower pressure. A bleeder hole 29 acts as a drain for leakage fluid. The piston 41 carries a pressure-relief valve. Fig. 5 shows a motor in which the piston 41 has a rod 52 pressed on by a spring 54 under control of a hand wheel 56 provided with a lock-nut 57. Fluid under pressure enters through a port 60 leading to the cylinder 43 and passes through one or more ducts 42, 42x, &c. according to the position of the piston 41, the fluid being exhausted into a manifold 51 which is connected to cylinder 43 and outlet 59. A stop 61 is provided to prevent the piston 41 from closing off the first cylinder 11. As the load on the shaft 12 lightens, the pressure in the cylinder 43 to the left of the piston 41 decreases, allowing one or more inlets 42xx to be cut off. On increase in load on the shaft 12, more of the cylinders 11 &c. are brought into operation, thus increasing the torque on the shaft 12, but decreasing its speed. In a further arrangement, Fig. 6, a six-cylinder pump has three passages 75, 76, 77 connecting pairs of cylinders, so that fluid enters, say, a cylinder 66x and passes through a passage 75 into the cylinder 67x before being exhausted. The shaft 70 is driven by an external engine.
Patent GB-1247148-A (GB)
Title: Safety arrangements for pressure vessels
IPC: G21C13/00
Filed: 1970-07-09
Abstract: 1,247,148. Reactor pressure vessels. SIEMENS A.G. 9 July, 1970 [9 July, 1969], No. 33492/70. Heading G6C. A nuclear reactor pressure vessel 2 is located in a concrete safety container 1, the upper aperture of which is covered by the blocking structure 8. The container 1, which may provide the reactor biological shield, is prestressed by the steel members 12, which also secure the structure 8. The support 10, between 8 and the pressure vessel cover 6, prevents the cover 6 from being accelerated upwards in the event of pressure vessel failure. The structure 8 may be secured resiliently to 1, by means of the rods and springs, to permit a limited yielding of 8 in the event of pressure vessel failure.
Patent GB-1035547-A (GB)
Title: Clutch mechanism
IPC: F16D43/21
Filed: 1964-08-18
Abstract: 1,035,547. Slip couplings. RANK XEROX Ltd. Aug. 18, 1964 [Sept. 3, 1963], No. 33624/64. Headings F2C and F2U. An overload slip coupling for use in the drive to the take-up spool of cleaning web feeding apparatus in an xerography machine, comprises a driving gear 451 journalled about a shaft SH13 and retained from sliding leftwards along the shaft by a ring 454, a coiled torsion spring fixed between a retaining ring 465 secured to theshaft and a ring 455 journalled upon the latter biasing the ring 455 so to turn that a cam 456 on its rear face reacts against a cam 466 on the fixed ring 465 and slides the ring 455 leftwards, a cork ring 458 carried by the latter then engaging frictionally with the side of the driving gear 451. Lubricant grooves 459 are formed in the engaging face of the cork ring 458.
Patent GB-738958-A (GB)
Title: Improved method for photographically or photochemically producing a printing plate
IPC: G03F7/04
Filed: 1953-12-04
Abstract: 738,958. Producing photo-mechanical printing plates. TRIGGS, W. W. (Jones Graphic Products Co.). Dec. 4, 1953, No. 33755/53. Drawings to Specification. Class 98 (2). A metal plate as of magnesium, zinc, copper, aluminium, brass or stainless steel is provided as by whirl coating, spreading or spraying with a light-sensitive dichromated polyvinyl alcohol coating, exposed to light under a pattern and washed with a dilute dispersion, solution or emulsion of a natural aromatic dyestuff such as quercitron, catechin, hypernic, fustic or fustin; but preferably logwood, hµmatein or haematoxylin, to remove unexposed areas and at the same time to colour and harden the exposed areas. The plate may then be treated in an acid solution, particularly of chromic acid, washed, and heated briefly to a temperature between 300‹ and 400‹ F. to produce firmly adherent, hydrophobic, resist areas of increased hardness. Bared areas of the metal base-plate may be acid etched, to result in a photoengraving plate.
Patent GB-627601-A (GB)
Title: Improvements in or relating to piston and cylinder assemblies
IPC: F15B15/22
Filed: 1946-11-14
Abstract: 627,601. Hydraulic motors. PARKER APPLIANCE CO. Nov. 14, 1946, No. 33771. Convention date, Feb. 18, 1944. [Class 69 (ii)] [Also in Groups XXVIII and XXXII] A device for cushioning relative movement between a cylinder element and a piston element during their approach to a limit of relative movement, comprises a member carried by and movable with respect to one of the elements near the limit of movement and having a bore therethrough, which is adapted to be displaced relative to a tapered member carried by that element and extending into the bore to form therewith a restricted passage reducible in size by relative movement of the members and through which liquid trapped between the two elements, must pass, the members being normally urged towards a relative position in which the passage is of maximum size. In the construction shown a sleeve 21 carried in a recess in the piston 17 has a shoulder 24 at its outer open end which forms a stop for a hexagonal-shaped member 22 which is slidably mounted in the sleeve 21 and outwardly urged by a spring 26. A tapered bore 23 in the member 22 co-operates to form an annular passage 41 with a tapered plug 40 carried by a shank 28 mounted in adjustable threaded relationship in a closure member 25 of the inner end of the sleeve 21. A washer 32 having a registering-projection engaging a keyway 35 in the shank 28, has two diametrically-spaced projections engageable under the action of a spring 33 in one pair of a circumferential series of registering notches in a boss-portion 29 of the closure 25. In operation, as the piston approaches its limit of movement (to the right of Fig. 2), a sleeve 19 projecting from the cylinder head 37, engages the slidable member 22. Liquid remaining in the cylinder can no longer pass directly into the exhaust port 12 but must pass around the periphery of the member 22 into the interior of the sleeve 21 from which it escapes to the port 12 by the passage 41. On continued outward piston movement the sleeve 19 displaces the member 22 leftwards to reduce progressively the area of the passage 41. Rotation of the shank 28 varies the initial area of the passage 41. The piston is double-headed and the pipe 12 and a similiar pipe leading from the other end of the cylinder are connected to a control valve (Fig. 1, not shown), which connects either pipe selectively to pressure or exhaust pipes respectively. The device is applicable to hydraulic steering installations, turret operation mechanisms and flight control devices on aeroplanes.
Patent GB-831760-A (GB)
Title: Variable load brake control apparatus for railway cars
IPC: B60T8/18
Filed: 1957-10-30
Abstract: 831,760. Springs for mounting bodies on railway vehicles. WESTINGHOUSE AIR BRAKE CO. Oct. 30, 1957 [Oct. 30, 1956], No. 33856/57. Class 103(6) [Also in Groups XXXI, XXXIV and XXXVII] In a variable load brake control apparatus (Group XXXIV) for rail vehicles, the vehicle body 32 is held at a constant predetermined height above the axles 83 by pressure in air-springs 7 controlled by a valve 8 operated through an arm 86 pivoted to link 87 anchored at its lower end to axle 83, the air under pressure being admitted to springs 7 from pipe 16 and exhausted through pipe 88. A spring 85 in the chamber 84 of the air spring 7 supports the body 32 at a minimum height should the air supply fail.
Patent GB-1469869-A (GB)
Title: Method of and apparatus for grinding wire
IPC: B24B5/38
Filed: 1974-07-31
Abstract: 1469869 Grinding VEREINGTE DEUTSCHE METALLWERKE AG 31 July 1974 [16 Aug 1973 18 March 1974] 33881/74 Heading B3D A method of grinding wire, tube, rod, strip or other elongated stock comprises axially guiding the stock through a central opening of a rotating grinding member 21, the surface defining the opening being used as an active grinding surface. In apparatus for carrying out the method, the stock is moved along a path 18 through bores in journals 6, 7 which support a frame 3 for rotation by a belt drive 2 from a motor 1 in a stationary frame 8. The frame 3 consists of a tubular member 19 and end walls 20 which rotatably support shafts 15, 16 outside the tubular member and rotated by gearing 10, 11 belt driven 5 from a motor 4. Arms 25, 26 are pivotally mounted on the tubular member about axes coincident with the axes of the shafts 15, 16, the arms extending to the axis of the frame 3 and having outer bearings 23, 24 rotatably supporting the grinding members 21, 22. Each grinding member has a central opening through which the stock passes, and each member is connected by a belt drive 12, 13 to its shaft 15, 16. During rotation of the frame, centrifugal force acts to urge the grinding members into contact with the stock moving along path 18. Devices 14, 17 may act with or against the centrifugal force to vary the force with which the grinding members engage the stock. There may be any number of grinding members and more than two, for example, three, shafts 15, 16. In another embodiment, the stock is rotated.
Patent GB-1105511-A (GB)
Title: Screw and nut mechanism
Inventor: WHICKER JOHN CHARLES FREDERICK
IPC: F16H25/24
Filed: 1964-08-20
Abstract: 1,105,511. Screw and nut gearing. ROTAX Ltd. 21 July, 1965 [20 Aug., 1964], No. 34035/64. Heading F2Q. A nut 11 is mounted directly on a screw 2 with limited axial and rotative freedom adjacent a recirculating ball-nut 5 engaging through balls 6 the thread 3 of the screw 2, so that during relative rotation of the screw and nut in one direction, e.g. to move an axial screw load A, the nut 11 is frictionally dragged angularly and axially out of engagement with a rollerrace 13 between itself and a stationary ball-nut housing 4, whereby the ball-nut alone supports the load, but during rotation in the opposite direction, e.g. due to a static axial load on the screw, the nut 11 is frictionally dragged angularly and axially against the race 13 so that the nut 11 now supports the whole or part of the load. The nut 11 is angularly biased by a spring (19) acting on a radial pin 16 into engagement with the race 13 and the angular bias is limited by the pin 16 engaging a nut housing stop 17. The nut 11 is axially free in a housing 10 which retains the ball-nut 5 for limited axial movement only. The roller bearing 13 prevents the nut 11 sticking when the screw and nut are relatively rotated to move an axial load.
Patent GB-439913-A (GB)
Title: Improvements in or relating to rolling mills with direct individual driving of the rolls by electric motors
IPC: H02K16/00
Filed: 1934-11-27
Abstract: 439,913. Rolling. SCHLOEMANN AKT.- GES., 13, Steinstrasse, and NEHLSEN, H., 38, Hindenburgstrasse, Meererbusch, both in D³sseldorf, Germany. Nov. 27, 1934, No. 34052. [Class 83 (iv)] [See also Group XXXV] In driving each roll of a rolling mill by a separate electric motor in which the space between the roll axes are occupied almost wholly by the large rotors 3, 4, while the field windings 11 and poles are located at the sides only, the magnetic flux of both motors combine through the telescoping surfaces 7, 8, as shown by dotted lines 5 and 6, while the stator yokes are magnetically insulated from each other by insulation 14. Small commutating poles 15 are provided at top and bottom of the combined motors only and a single compensating coil 16 for armature reaction is located between the rotors. The top motor frame fits over the bottom frame with nonmagnetizable insulation 9, 10 between. For synchronous or asynchronous polyphase motors Fig. 2, rotating magnet wheels 31 can have very thick shafts, and their stators 33 are likewise magnetically separate from each other. The phase winding 35 is constructed so that its coil ends lie in three different planes and so do not extend beyond the outer edges of the segments 33 in the direction opposite one another. As these motors must run at speeds up to 1500 revolutions per minute the frequency used is usually a multiple of the usual 50 cycles.
Patent GB-603340-A (GB)
Title: Improvements relating to apparatus incorporating rotary drums
IPC: B02C17/18
Filed: 1945-12-17
Abstract: 603,340. Bearings. SMIDTH & CO. AKTIESELSKABET, F. L. Dec. 17, 1945, No. 34148. Convention date, March 28, 1942. [Class 12 (i)] [Also in Groups II, XII and XIII] A rotary grinding mill, rotary kiln or drying drum supported on adjustable or fixed slide shoes is axially constrained or steadied by a centrally fixed device which is connected to one end of the drum but does not constitute a bearing. Fig. 2 depicts the steadying means in the form of a driving shaft 23 having flexible couplings 22 and ball-and-socket joints 35 interposed between the gear-box 27 and the outlet 20 which discharges through slots into the casing 25. In a simple form, Fig. 1 (not shown) the steadying means is a coaxial shaft fixed at one end by a spider to the discharge end of the drum which is driven through a rim gear and at the other end to a bearing set in the foundation.
Patent GB-1394347-A (GB)
Title: Electret foil
IPC: H04R19/01
Filed: 1973-07-18
Abstract: 1394347 Electrets PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 July 1973 [21 July 1972] 34170/73 Heading H1M [Also in Division H4] Robust foil electrets comprise a layer of electretized material, e.g. PTFE, FEP, deposited on a substrate layer of material having a higher elastic limit, e.g. polyimide.
Patent GB-175461-A (GB)
Title: Device for preventing the starting of motor driven vehicles and operating of other apparatus by unauthorized persons
IPC: B60R25/04
Filed: 1920-12-03
Abstract: 175,461. Barsch, H., and Wenzlaff, E. Dec. 3, 1920. Plug-cocks; locking.-A valve locking-device described in connection with means for preventing the unauthorized use of motor-vehicles comprises, as shown, a bolt g controlling the opening of the fuel valve, and itself under the control of a combination lock d. The bolt is carried within a casing c mounted on a casing a secured to the motor casing by studs entered from within the latter. The fuel is led to a valve l by an inlet tube m and then passes to the engine through an outlet tube n. An extension of the valve stem carries a pinion p meshing with a rack x on the bolt g, and the valve is opened by advancing the bolt to the position shown. The bolt slides within a sleeve f carrying rings d having apertures shaped as shown in Fig. 5. The rings normally engage in indentations h in the bolt and permit the bowl to be moved only when the rings are turned so that eccentric parts k of the aperture are in alignment with ribs i separating the indentations.
Patent GB-919733-A (GB)
Title: Improvements in and relating to flameproof enclosures for electrical apparatus
Inventor: COURT RONALD ARTHUR BRADLEY
IPC: F21V25/12
Filed: 1960-10-06
Abstract: 919,733. Flameproof lamp enclosures. WALSALL CONDUITS Ltd. Oct. 6, 1961 [Oct. 6, 1960], No. 34238/60. Class 76 (4). [Also in Group XXVI] A flameproof enclosure for an electric lamp or other electrical apparatus comprises a body and a removable cover for an opening in the body, the body and cover having contiguous flat metal faces in at least one of which is a circumambient recess in which is an endless V-section member of resilient material having one arm of the V secured to the base of the recess, the other arm being adapted to engage the face of the other member and to be moved towards the first arm when the faces are in contiguity. A well glass fitting comprises a body 1, Fig. 1, supporting a lamp-holder 2 and a metal ring 5 in which the well glass is secured by cement 11 around a beaded edge 10. The body 1 and ring 5 have flat machined faces 7, 8, Fig. 4, which can be bolted together. The ring 5 has a recess 16 in which one arm 18 of a V-shaped sealing member 17 is secured by bolts 20 and washers 19. The free arm 21 is compressed into contact with the face 7 when the faces 7, 8 are brought into engagement. The arm 21 is preferably shorter than the arm 18 so that its end is not caught between the faces 7, 8 when these are brought together.
Patent GB-448038-A (GB)
Title: Improvements in and relating to bottles for poisons and other dangerous fluids
IPC: B65D55/02
Filed: 1934-11-29
Abstract: 448,038. Bottles etc.; stoppers &c. O'BRIEN, T. C. B., and BROWNE, G. W., 6, Laystall Street, Rosebery Avenue, London. Nov. 29, 1934, No. 34271. [Classes 125 (i) and 125 (iii)] A stopper for poison bottles comprises a downwardly tapered plug portion d, Fig. 1, and a left-hand screw portion c with embossed indications on the head as to contents or method of opening. The unusual method of opening acts as an additional indication in the dark that caution is necessary. In a modification, the plug stopper is attached to a left-handed threaded cap. In another modification, Fig. 4, a plug d is tapered upwards and is connected to a right - handed thread portion r. The stopper is turned so that the plug d enters the bottle and uncovers a passage r for pouring. In still another modification, Fig. 5, a similar plug is arranged crosswise of the neck.