baber/WOPTO huggingface dataset:
Patent GB-847479-A (GB)
Title: Improvements in or relating to yankee dryer cylinders and the like, particularly for use in the manufacture of paper
IPC: F26B13/18
Filed: 1956-12-07
Abstract: 847,479. Yankee drier drums of paper-making machines. KIMBERLEY CLARK CORPORATION. Dec. 7, 1956 [Dec. 9, 1955], No. 37505/56. Class 96. To increase the efficiency of drying, the shell 38 of a Yankee drier drum &c which may be of cast iron &c. is made thinner than usual, and the ends of the drum, which are substantially flat, are braced internally, as by a series of longitudinal beams 52 or alternatively by making the hollow, internal part of the drum shaft 42 of greater diameter than is usual, to form a stiffening or staying-cylinder, e.g. of a radius 55 to 95% of that of the shell, so that angular distortion at the joints between the shell 38 and the ends of the drum, due to thermal stresses, is reduced such stresses occurring e.g. when the shell is at a lower temperature than that of the ends 40, owing to the cooling effect of the paper being dried.
Patent GB-1423288-A (GB)
Title: Process for the production of methacrylate polymer moulding materials
IPC: C08F20/14
Filed: 1973-08-08
Abstract: 1423288 Polymethyl methacrylate MITSUBISHI RAYON CO Ltd 8 Aug 1973 [15 Aug 1972 18 July 1973] 37569/73 Heading C3P In the continuous bulk polymerization of methyl methacrylate at 130-160‹C. in the presence of 0À01-1% of a mercaptan and a free radical initiator the amount of initiator feed and the steady state amount of polymer present are defined mathematically, viz where A moles per 100 g. monomer of initiator of half life B in hours at the polymerization temperature then 10#A¢ÀB-¢ Î 10<SP>3</SP>, 3#AÀB x 10<SP>5</SP> and preferably 2À9#A<SP>-1</SP>(B+10À3)x10<SP>6</SP> and the polymer content in per cent by weight is above 50 and below 70 exp. (0.0121 T-1À81) where T is the reaction temperature. Up to 20% of another acrylic ester monomer may be used. Monomer/polymer mixture is continuously removed and polymer recovered. More than one polymerization stage may be used.
Patent GB-1132971-A (GB)
Title: Improvements in or relating to reciprocating compressors and reciprocating hydraulic pumps
IPC: F04B1/29
Filed: 1965-09-02
Abstract: 1,132,971. Compressors; hydraulic reciprocating pumps. C. H. M. MADDOX. Dec. 2, 1966 [Sept. 2, 1965], No.37580/65. Headings F1A and F1N. Reciprocation of compressor or hydraulic pump pistons 10, 11 within cylinders 14, 15 lying parallel to a hollow centre shaft 2 rotated by a motor 1 is effected by a circular cam plate 3 pivoted along a diameter 9 thereof normal to the axis of shaft 2 and bearing at its periphery against rounded ends 18, 19 of piston rods 12, 13; the tilt of the cam-plate being controlled by a bell crank 8 pivoted to the shaft 2 and responsive to the adjustable tension of a spring 5 which when balanced by delivery pressure results in the cam-plate assuming a position normal to the shaft axis. The maximum tilt is limited by a variable stop 4.
Patent GB-1098663-A (GB)
Title: Tape spool drive for magnetic recorder
Inventor: FINDEISEN HEINZ HELMUTH
IPC: G11B15/50
Filed: 1963-09-24
Abstract: 1,098,663. Electromagnetic couplings. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. July 2, 1965 [Sept. 24, 1963], No. 37599/63. Heading H2A. [Also in Division G3] A magnetic tape spool drive comprises an eddy-current drive disc and a ferromagnetic driving rotor, one being attached to a motor and the other to a spool shaft, a stationary electromagnetic element provides a magnetic field passing through the rotor and cutting the disc and a winding of the element is energized in dependence on a signal indicative of tape tension to vary the torque transmitted from the motor to the spool. A magnetic tape, Fig. 1, not shown, is taken up from a capstan by a reel driven through an eddy-current coupling by a motor. The tension in the tape is sensed by a jockey roller, counterbalanced through a lever by a spring. Change in tape tension varies the output of a transducer, comprising a rheostat or pressure responsive device, which through an amplifier energizes an electromagnetic winding of the clutch to vary the torque transmitted to the reel so as to maintain the tape tension constant. A similar arrangement can be employed for the feed to the capstan. As shown, the eddy-current coupling comprises a ferromagnetic member 29, driven by a motor 26, with projecting arms 39, a stationary annular member 24, having a groove containing an excitation winding 25, and an aluminium or copper disc 23 moving within the air gaps formed between the member 24 and arms 39, driving a tape reel 21.
Patent GB-326871-A (GB)
Title: Improvements in or relating to shaft drivers for grain or the like
IPC: F26B17/14
Filed: 1928-12-20
Abstract: 326,871. Filsz, H. Dec. 20, 1928. Gravity, materials descending by.-In apparatus for drying grain &c. of the kind in which the grain falls through a chamber having central roof-shaped baffles e and lateral inclined baffles d, beneath which series of cavities are formed in the grain stream, the central and lateral baffles are all perforated so that air admitted to one series of cavities reaches the other series of cavities by flowing upwardly through one series of baffles and the material resting thereon, and downwardly through the other series of baffles. The drier is divided into an outlet section a in which the drying air is preheated, drying sections b, b<1> to which hot air is supplied by a fan l, and an inlet section c in which the grain is preheated by part of the air exhausted from the drying sections. The baffles are so spaced that the layers of grain in the inlet and outlet sections are thinner than those in the drying sections. The air enters and leaves the drying chamber through openings in the end walls, and tubes t, Fig. 6, may be provided so that the air enters the cavities at both ends. The grain is discharged by an oscillating vane wheel having a pair of pockets E, E<1>, Fig. 8, which are alternately brought beneath the outlet. The rate of discharge is varied by using a smaller pair of pockets F, F<1>. Air chambers H may be formed in the outlet section for additional cooling of the grain. The tapered outlet section may be divided by transverse inclined baffles (not shown) to equalize the flow of grain through the outlet section.
Patent GB-1080138-A (GB)
Title: Improvements in or relating to magnetic recording systems
IPC: D06M15/11
Filed: 1964-09-16
Abstract: 1,080,138. Code converters. AMPEX CORPORATION. Sept. 16, 1964 [Dec. 23, 1963], No. 37786/64. Heading H4P. [Also in Division G5] Binary data are recorded on a magnetic medium in the form of a single flux reversal for each unit and of a plurality of flux reversals for each zero, the latter amounting to an erase signal. Fig. 4 illustrates the recording process wherein the original signal B is converted to its complement C and delayed by half a bit to produce D. The waveform D is added to clock pulses A to produce E which is fed to a bi-stable unit giving an output F which is fed to the recording head. Fig. 5 illustrates the playback process. The signal B fed to the recording head appears as C after recording and playback, the units appearing as large peaks and the zeros as small ripples. The signal C is passed to an integrator type detecting means which eliminates the ripples and may rectify the negative pulses as shown by the broken lines in waveform D. The number of flux reversals representing a zero may be increased to four (Fig. 5A), and the system may be used for recording at a density of 5000 bits per inch.
Patent GB-348633-A (GB)
Title: Improvements in distance recording devices for road vehicles
IPC: G07C5/12
Filed: 1929-12-10
Abstract: 348,633. Recording odometers. MOLYNEUX, P. S., 204, Loop Street, Pietermaritzburg, Natal, South Africa. Dec. 10, 1929, No. 37874. [Class 106 (iii).] A recording odometer comprises a bent arm 7 pivoted at 10 having at one end a projection 6 engaging in concentric channels 4, 4a in the disc 3 and moved from one to the next through the radial siots 5, 5a, &c. under the action of the spring 8 when the disc 3 rotates through gearing 2, 2a, 2b from the vehicle transmission, and having at the other end a recording point 11 engaging with the radially marked card 13 attached to the metal disc 14 rotated through gearing 15, 2a, 2b from the vehicle transmission. The disc 3 can be modified by replacing the concentric channels by a single cam channel, Fig. 3, or by a spiral channel, Fig. 4. The device can be sealed under a transparent cover. The Provisional Specification states that two recording discs 14 can be used positioned in the same plane, driven from the same mechanism and so arranged that upon a complete circle or the like being described on one card the arm carrying the recording point automatically switches on to the second card, and also states that the card on the disc can be replaced by a moving band of paper on a roll, and the recording point by a wheel with sharp teeth.
Patent GB-1041570-A (GB)
Title: Improvements in spraying nozzles for the sprinklers of fire extinguishing apparatus
Inventor: BRAY GEDDES ALAN
IPC: A62C37/14
Filed: 1962-10-08
Abstract: 1,041,570. Sprinkling apparatus. MATHER & PLATT Ltd. Sept. 26,1963 [Oct. 8, 1962], Nos. 37938/62 and 18145/63. Heading A5A. [Also in Division B2] A sprinkler head suitable for use in fire extinguishing apparatus comprises a thin-walled tube 2 having a series of at least two spaced arms 3 formed integrally with the tube wall and extending inwardly therefrom to within a short distance from one another, each arm being set at an angle to a radial plane through the tube, and a temperature sensitive bulb 17 which fractures upon a rise in the ambient temperature and releases arms 13 which fall away together with a plate 12 and a sealing device 10 for a restricted orifice 9 in the body 8 of the head so that water passes through the diffusing arms 3 and the orifice 9. The sealing device 10 is held over the orifice 9 by an adjustable set screw 11 which is threaded through the plate 12. A strainer, Fig. 2 (not shown) may be provided upstream of the arms 3.
Patent GB-619821-A (GB)
Title: Improvements in vehicle suspensions
IPC: B60G11/18
Filed: 1946-12-30
Abstract: 619,821. Vehicle suspensions. FORD MOTOR CO., Ltd. Dec. 30, 1946, No. 38050. Convention date, Jan. 19. [Class 108 (ii)] A vehicle suspension of the kind comprising a wheel-supporting member 18 pivoted about a longitudinal horizontal axis 21 and connected by a torsion spring 24 to a frame member 14 of the vehicle, has the longitudinal axis of the torsion spring disposed at an angle to the said pivotal axis 21 so that these two axes intersect at a point adjacent the vehicle frame member, whereby the torsion spring moves on the surface of an imaginary cone during suspension movements and is subjected only to torsional stress. The forward end of the torsion bar 24 is bent into a U-shape 26. One arm of this U-shaped member passes through a sleeve 28 which is mounted in the lever 18 in laterally-spaced relation to the axis 21, and the other arm enters a second sleeve 30 also mounted in the lever 18. The rear end of the bar 24 is reversely bent into a U-shape 27, of which one arm engages a groove 31 in the underside of the lower flange 32 of the frame member 14, while the other arm thereof rests on the upper surface of the said flange. The torsion spring might, alternatively, be connected to the lever and to the frame by flanges or splines instead of by U-shaped ends.
Patent GB-1157513-A (GB)
Title: Infusion Bag and Method of Producing the Same.
Inventor: RAMBOLD ADOLF
IPC: B65D85/808
Filed: 1966-08-26
Abstract: 1,157,513. Infusion bags. A. RAMBOLD. 26 Aug., 1966 [31 Aug., 1965], No. 38330/66. Heading B8C. An infusion bag 1 is formed from a tube of fibrous filtering material that is folded so that the ends meet to form a closure flap 5 held together by a staple 6 to which is attached a string 7 having a handle or label 8. As folded, the tube consists of two outer chambers 3, 4, and two intermediate bottom chambers 2<SP>1</SP>, 2<SP>11</SP> ,  all of which are filled with an infusible substance for preparing a beverage. When the bag is immersed in liquid, the substance expands so that the bag assumes a substantially triangular shape, the chambers 3, 4, each forming a side and the bottom chambers end-to-end forming the third side. The tube is formed from a strip the longitudinal edges of which are bent to form a trough, and is filled at intervals with portions of the infusible substance; the longitudinal edges of the trough are connected and the tube is cut into equal lengths between adjacent portions. In a modification side chambers (203), (204), Figs. 4, 5 (not shown), are the same length as the bottom chamber (202), one chamber (203) being folded so as to lie between chambers (204) and (202). The side chambers (303), (304), Figs. 6, 7 (not shown),  may each be concertinaed into three equal parts which lie on the bottom chamber (302). The bag may have chambers (403), (404), Figs. 8, 9 (not shown), partially sandwiched between folded portions of the bottom chamber (402).
Patent GB-879453-A (GB)
Title: Improvements in automobile vehicles
IPC: B60K17/22
Filed: 1956-12-17
Abstract: 879,453. Motor vehicle driving gear; frames; mounting radiators. SAMPIETRO, A. C. Dec. 13, 1957 [Dec. 17, 1956], No. 38463/56. Classes 79(2), 79(3) and 79(4). [Also in Groups XXXII and XXXIV] In a vehicle having a slender transmission shaft 37 Fig. 1 an intermediate bearing 52 Fig. 4 supported by elastic material has a small clearance so that it engages the shaft under whirl conditions. The engine 25 and differential 28 are arranged to connect with the shaft 37 in a low slung position and have their shafts 35, 36 inclined downwards towards the shaft 37. The inclination of the engine 25 is made as small as possible by mounting the engine well forward and disposing the radiator 43 and fan 44 behind the engine. The downwardly projecting flywheel casing 45 which normally projects below the sump is further mounted on the front end of the engine. The change speed gear is preferably mounted at the rear of the vehicle and forms one unit with the differential unit 28 so that the shaft 37 transmits only engine torque and is therefore of small diameter. The vehicle frame 10 comprises a pair of sheet metal panels 13, 14, Fig. 3 welded together at downward projections 17 of the upper panel 14 and welded at the side margins to channel members 19 where the edges are shaped to form circular section ducts 18 braced by transverse ribs 15, 16, Fig. 2 in the upper panel 14. The front of the frame 10 is formed into a dash 21. by bending the front end 14<SP>1</SP> of the upper panel 14 upwards and welding a vertical plate 20 between the panels 13, 14. The front extension mounting the engine 25 and front suspension 26 comprises an inverted U-shaped yoke 22 and front cross-member 23 carried by brackets 24 welded to the frame 10. The rear extension 12 housing the rear suspension 27 and differential unit 28 comprises extensions 29, 30 of the skins 13, 14 welded to side plates 31, brackets 33 and a rear cross member 32. The propeller shaft 37 is disposed between the skins 13, 14 and runs in roller bearings 50 mounted upon enlarged portions 51 Fig. 4 at the ends of the shaft and supported by part circular rubber rings 54 clamped in a housing 55. The resiliently mounted plain bearing 52 is disposed centrally of the shaft over an enlarged portion 53 and is mounted between arcuate rubber supports 57 (not shown). The front and rear shafts 35, 36 are enclosed within tubular casings 39, 40 rigidly secured to the engine casing and differential unit and sloping downwardly so that the double universal joints 38 are disposed between the skins 13, 14, in the region of the transverse ribs 15, 16. Cover plates 41, 42 are provided for access to the universal joints 38.  In modifications the double universal joints may be replaced by single Hooke joints, the resilience of the shaft 37 compensating for cyclic speed variation. Alternatively, the shafts may be connected by bevel gears. Specification 879,452 is referred to.
Patent GB-1472307-A (GB)
Title: Machine-profile-measuring installation insertable into the roller conveyor of a continuous casting machine and a method of measuring the machine profile
IPC: B22D11/20
Filed: 1974-09-04
Abstract: 1472307 Continuous casting VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE ALPINE-MONTAN AG 4 Sept 1974 [10 Sept 1973] 38702/74 Heading B3F [Also in Division G1] Apparatus for measuring the spacing between the rollers 1, 2 (Fig. 1) of a conveyer, e.g. with bending and straightening rollers, for a continuous casting plant comprises an elastic plastics body 12, slightly thicker than the nominal spacing D<SP>1</SP> of the roller assembly, which is drawn, through the path to be followed by a strand, by means of a dummy bar 3, whereby one or more transducers 8 embedded in the body 12 measure the spacing, for possible adjustment. Each transducer 8 comprises two inductive displacement pick-ups 15, 16 (Fig. 3), attached to either side of a steel plate 14 or a continuous strip of hard plastics located centrally in the body 12, whose feelers 15, 16 are protected by leaf springs 26, 27. Alternatively, the displacement pick-ups are pressure pick-ups. To increase curvature strain gauges are bonded to the central continuous strip. The surfaces of the body 12 may be covered with thin metal plates. (For Figures see next page.)
Patent GB-368883-A (GB)
Title: Improvements in carburettors
IPC: F02M17/04
Filed: 1930-12-29
Abstract: 368,883. Spray carburetters. EAMES, W. H. and MORGAN, W. L., 115, Nelson Road, Hornsey, London. Dec. 29, - 1930, No. 39006. [Class 7 (iii).] A carburetter which embodies the features described in Specification 191,099, [Class 7 (iii), Internal-combustion engines, Carburetting apparatus &c. for], comprises a fuel nozzle consisting of a central portion 8, surrounded by a tubular member 13, the annular space formed allowing air entering through holes 14 to pass by way of slots 11, over the fuel orifice which is controlled by a needle valve 12 carried by a tubular throttle valve 19, having ports 20 provided with a V notch 20a. The flow of fuel through orifice 7 to the nozzle 8 is controlled by apertures of different sizes in the periphery of a rotatable plug 25 which may be actuated by a graduated disc 28 or, through a universal joint, from a distance. Air inlet holes 22 in the casing 1 are adapted to be uncovered by the lower end of the throttle which is streamlined and carries a choke tube 24. According to the invention, (1) the tubular member 13 is provided at its upper end with a flanged portion 16 which may be slotted, as at 17, and serves as a baffle to facilitate mixing ; (2) the inner part 8 of the nozzle has a recess 9 which serves to hold a reserve of fuel to facilitate starting and accelerating; (3) the lower portion 2 of the casing has a chamber 2b to hold petrol that has overflowed, and may be provided with a drain cock ; (4) the flow of fuel to the nozzle is controlled by a needle valve 31b attached to a flexible diaphragm 31a which may be actuated manually through a Bowden cable 36a, or by suction, existing at the engine side of the throttle, through a tube 33. The opening through which the cable passes is rendered airtight, so as to preserve the partial vacuum, by a piece of rubber tubing 37 ; (5) extra air is admitted through holes adapted to be uncovered by a manually-actuated piston, the air being delivered to each outlet branch 21 of the carburetter ; (6) a ported sleeve 43 around the casing 1 is adapted to control the air inlet holes 22. The carburetter is primarily intended for use without float-feed apparatus, but such apparatus may be provided if desired.
Patent GB-1123186-A (GB)
Title: Circuit arrangement for a character-writing cathode-ray tube
IPC: G09G1/10
Filed: 1965-09-14
Abstract: 1,123,186. Cathode-ray tube circuits. TELEFUNKEN PATENTVERWERTUNGS G.m. b.H. 14 Sept., 1965 [22 Oct., 1964], No. 39152/65. Heading H4T. In an Alpha-Numeric display system in which characters are traced on the screen of a cathoderay tube S by the application of an appropriate series of X and Y co-ordinate deflection voltages UI X , UI y  (Fig. 3), the latter are supplied to the beam deflection amplifiers V x , V y  through individual, identical, low-pass filters TP x , TP y . This arrangement ensures constant speed and therefore constant brightness of each component limb of the trace when the production of the latter requires the X and Y deflections, produced during a single "clock" pulse from T, to be of unequal amplitude, as e.g. the deflection voltages UI x , UI y  (Fig. 2 not shown), required in producing the trace A-B (Fig. 1, not shown), since the action of the filters results in output voltages U2 X , U2 Y  (Fig. 2) which reach the required amplitude in a time T which is independent of the amplitude of the input voltage. Reference has been directed by the Comptroller to Specification 1,041,297.
Patent GB-1274491-A (GB)
Title: Laser device
Inventor: ALMASI JOSEPH CHARLES
IPC: H01S3/093
Filed: 1969-08-05
Abstract: 1,274,491. Lasers. GENERAL ELECTRIC CO. 5 Aug., 1969 [27 Aug., 1968], No. 39235/69. Heading H1C. In an end pumped laser, the active medium comprises thin rectangular elements 4 of neodymium doped glass separated and cooled by a liquid 13 of refractive index similar to that of the elements. The liquid is stated to lessen the requirements for accurate optical flatness of the element faces it contacts by an order of magnitude. A suitable liquid, such as dimethyl sulphoxide is contained in a reservoir 14 and is pumped between the elements 4 via conduit 15 and guides 16, and then passes to heat exchanger 18. The active medium is optically pumped by xenon flash lamps 8 backed by an alumina reflector 9, and a filter (not shown) may be used to pass only optical radiation to the elements 4. A window 3 positioned adjacent the elements has a coating 10 transparent to pumping radiation but reflecting to coherent radiation from the elements, and the laser may therefore be used either as an amplifier for incoming radiation such as 7, or as a generator by coating window 6 with partially reflecting material. Alternatively separate mirrors may be used. A truncated prism 20 and a square plano-convex lens 19 may be used to direct the pumping radiation on to the elements, the radiation density at face 10 being greater than that at face 21 by a factor n<SP>2</SP>, where n is the refractive index of the prism. A geometric relationship between the curvature of lens 19 and the element dimensions is given. The elements may have different thicknesses and dopant concentrations.
Patent GB-1186417-A (GB)
Title: Ball Valve Assembly
IPC: F16K5/20
Filed: 1967-08-30
Abstract: 1,186,417. Valves. FISHER GOVERNOR CO. 30 Aug., 1967 [12 Jan., 1967], No. 39644/67. Heading F2V. The upstream seal of a ball valve comprises a resilient sealing ring 42 secured to the casing, and a chromium plated stainless steel cap 40 which is secured to the ball by screws 39, and which can be replaced without removing the ball from the casing. The concave leading edge 53 of the cap is provided with ears 50 having a smaller radius than the main surface of the cap to produce a wedging action during closing. Specification 1,113,711 is referred to.
Patent GB-868529-A (GB)
Title: A combination punching and eyeleting device
IPC: B21J15/04
Filed: 1959-11-24
Abstract: 868,529. Punching-devices. KOEHL, H. Nov. 24, 1959 [Jan. 2, 1959], No. 39760/59. Class 31 (2). [Also in Group XXII] A combination punching and eyeletting device comprises a metal strip 1 which has a hollow punch 3 formed integrally with one end and a riveting snap 5 formed at the other end. There are graduations 7 along one edge of the strip to assist in positioning the holes at equal distances. The device is held by hand and struck with a hammer, the length "h" of the punch being made equal to the thickness of the material to be cut.