baber/WOPTO huggingface dataset:
Patent GB-853209-A (GB)
Title: Improvements in magnetic tape apparatus
IPC: G11B15/295
Filed: 1958-01-27
Abstract: 853,209. Driving sound film or tape. AMPEX CORPORATION. Jan. 27, 1958 [Jan. 28, 1957], No. 2699/58. Class 40 (2). In a magnetic tape apparatus means are provided to maintain constant tape tension between the supply reel and the capstan. Fig. 1 shows the feed spool 16 from which the tape 19 passes over a guide roller 47 fixed to the tape deck, round a roller 46 carried on the free end of a tensioning arm 18, to an idler roller 23 and then via a second tensioning arm and guide roller to the take-up spool 15. Between the limbs 31 of the loop of tape passing over the idler roller is a drive capstan 22 on to which the tape is pressed by two rollers 32. Magnetic heads 45 contact the tape between the idler roller 23 and capstan 22. A magnetic shielding fin 30 extends from the idler wheel 23 to a guide stud 30b. The tape tensioning means comprises a brake drum 50 (see Fig. 2), attached to the shaft 51 of the associated turntable and engaged by a band brake 52, one end of which is attached at 54 to a plate 56 which is pivoted at 60. The plate is acted on by a spring 62 which tends to apply the brake and in the opposite direction by the spring 59 connected between the plate 56 and an extension 58 of the arm 18. The other end of the brake band is connected to a bar 64 which is connected at one end to a spring 66 and at the other end to a member 69 connected by the pins 68 to a pair of rotarytype solenoids 67 which when energized move the bar 64 sufficiently to completely release the brake. The arm 18 and the brake band 52 pass through notches cut in the bar 64. During clockwise rotation of the drum 50 the braking force is determined by the initial tension in the spring 62 and is modified by the movement of the arm 18 as the tape tension increases or decreases. Increasing tension causes rotation of the arm clockwise as seen in Fig. 2 so that the side of the arm engages the bar 64 and moves it to the left against the spring 66. This movement reduces the braking force by moving the end of the brake band attached to the bar 64 away from the drum, and by increasing the tension in the spring 59 reduces the effective tension of the spring 62. Clockwise movement of the arm is limited by the dash-pot 76. Rotation of the drum in a counter-clockwise direction causes the plate 56 to move against the stop 63, so that the brake tension is controlled solely by the tension of spring 66. During fast forward or rewind operations both brakes are released and the necessary tape tension is maintained by supplying a reverse electrical torque to the feed spool.
Patent GB-378328-A (GB)
Title: Improvements in and relating to suspension devices for curtains
IPC: A47H15/02
Filed: 1932-01-29
Abstract: 378,328. Suspending curtains. OSTER, R., 13, Augustastrasse, Hagen, Westphalia, Germany. Jan. 29, 1932, No. 2734. Convention date, Nov. 30, 1931. [Class 52 (v).] Curtains are suspended from runners which run alternately on two tracks c, b arranged one above the other. In the construction shown the tracks are formed on a single rail and the runners each comprise a U-shaped frame carrying a roller, the runners b<1> on the upper track having longer frames than the runners c<1> on the lower track.
Patent GB-524305-A (GB)
Title: Improvements relating to screw-grinding processes
IPC: B24B19/02
Filed: 1939-01-26
Abstract: 524,305. Grinding screw-threads. LINDNER, H., [trading as Lundner, H.]. Jan. 26, 1939, No. 2745. Convention date, Nov. 29, 1938. [Class 60] In grinding screwthreads by means of a multi-ribbed grinding- wheel of axial length approximately equal to that of the thread to be ground, the wheel s is fed radially into the work 1 to a part, for example, one-third of the full depth of the thread, and the work is given one rotation with relative axial traverse equal to the thread pitch h. The wheel s is then fed into the work and the rotation and axial traverse are reversed, the work again being given one rotation. This process is repeated until the thread is completed. The ribs on the wheel s may have a pitch equal to a multiple of the pitch of the thread, in which case, two or more rotations are given to the work for each traverse. Specification 414,865 is referred to.
Patent GB-265235-A (GB)
Title: Improved system of ventilation
IPC: F24F7/04
Filed: 1927-01-31
Abstract: 265,235. Knapen, A. Jan. 30, 1926, [Convention date]. Ventilating conduits and passages, arrangements and adaptations of; inlet and outlet ports, arrangements of. -Means for ventilating buildings, tunnels. cellars, ships, motor and railway vehicles, &c., comprises two or more casings or ventilating shafts of different cross sections and lengths leading from the enclosure to the exterior, one of such casings 10 being comparatively short and disposed at the ceiling, and the other or others 16, 21 being of smaller crosssectional area and greater length and opening into the lower part of the enclosure. The casing 10 is for the discharge of air, and the casings 16, 21 admit fresh air, but in certain circumstances the casings 16 may be used with the casing 10 for exhausting air from the enclosure. The above described system of ventilation may be used in conjunction with apertures in the walls of the enclosure, such apertured walls having different aspects. The ventilating casings may be disposed in the thickness of the walls, or may be applied on the wall faces, or they may be spaced from the walls. A number of such groups of casings may be provided for ventilating a single compartment, if desired.
Patent GB-1117733-A (GB)
Title: Process for the production of adenosine by microorganisms
IPC: C12P19/30
Filed: 1966-01-21
Abstract: Adenosine is prepared by culturing adenosine-producing, naturally occurring strains of microorganisms belonging to the genus Sarcina in a culture medium containing sources of carbon, nitrogen, inorganic salts and adenine.  Preferred strains are those within the species Sarcina ureae and Sarcina hansenii, e.g. ATCC. Nos. 19202, 19203 and 19204.  The adenosine product may be separated from unused adenine by selective elution from active charcoal.
Patent GB-912030-A (GB)
Title: Improvements in hydraulic turbine plants
IPC: F03B11/00
Filed: 1961-01-25
Abstract: 912,030. Sluice gates. ETABLISSEMENTS NEYRPIC (Ateliers Neyret-Beylier & Piccard- Pictet). Jan. 25, 1961 [Feb. 11, 1960], No. 2938/61. Class 68 (2). A vertically-sliding sluice gate 7 for use in an hydraulic turbine plant is buoyant, having water-tight compartments or caissons 9 providing buoyancy sufficient to overcome the downwardly-acting forces of the sluice gate so that the gate cannot shut solely under its own weight.
Patent GB-123398-A (GB)
Title: Improvements in Internal Combustion Gas and Oil Engines.
Inventor: CROSSLEY KENNETH IRWIN
IPC: F02B23/00
Filed: 1918-02-21
Abstract: 123,398. Crossley, Sir K. I., and Webb, W. Le P. Feb. 21, 1918. CyLinders, construction of. - The engine has a rectangular waterjacketed combustion chamber A, in the walls of which are admission and exhaust valves G, H, as in the engine described in Specification 117,670. The invention consists in providing one or more fuel nozzles J in the back wall of the chamber which is semicircular in plan, instead of in a side wall. A compressed-air starting-valve may be situated in one of the walls. When the invention is applied to gas engines, igniters take the place of the fuel nozzles. Specification 2974/15, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], also is referred to.
Patent GB-1535707-A (GB)
Title: Shaft seal
IPC: F16J15/3284
Filed: 1977-01-26
Abstract: 1535707 Shaft seals CARL FREUDENBERG 26 Jan 1977 [27 Jan 1976] 03121/77 Addition to 1438434 Heading F2B The subject-matter of this Specification is substantially the same as that of the parent Specification 1,438,434, but the claims are directed to moulding the housing 1 in one piece on to the outer edge of the flexible sealing ring 2. As in Specification 1,438,434, the flexible sealing ring 2 has flexible sealing fibres projecting therefrom into sealing contact with a rotary shaft.
Patent GB-842779-A (GB)
Title: Improvements in buttons or studs
IPC: A44B1/34
Filed: 1958-01-30
Abstract: 842,779. Buttons; studs. BAY, J. L. Jan. 29, 1959 [Jan. 30, 1958], No. 3132/58. Class 43 A button or stud comprises a disc or washer I with a ribbed resilient spigot 11 which engages in a socket 6 in a base 5 of a head 3 having a waist 4, the mouth 7 of the socket tapering to an enlargement 7a in the waist and a rib on the spigot engaging behind the shoulder formed in the socket. The lower surface of the base may be concave and the upper surface convex. The spigot is pushed through the material which is clamped between the disc and base.
Patent GB-392669-A (GB)
Title: Improvements in or relating to typewriting machines
IPC: B41J35/22
Filed: 1932-02-03
Abstract: 392,669. Typewriters. JARDINE, Ltd., J., Deering Street, Nottingham, and BALL, H. J., Knowle Park House, Kimberley, Nottinghamshire. Feb. 3, 1952, No. 3167. [Class 100 (iv).] Ink-ribbon mechanism ; paper-supports.-In an auxiliary ink-ribbon mechanism for duplicating, the ribbon spools are mounted on the platen journals, and clutch members are provided on the journals and are adapted to engage alternately with the ribbon spools. The platen B, Figs. 1 and 2, has journals A, A<1> removably mounted on frame members D, D<1> of the typewriter. Ribbon spools C, C<1> are freely mounted on the journals A, A<1> and are connected by springs K with frame members F, F<1> also loosely mounted on the journals. The members F, F<1> are connected by a bar G which may form a tear-off bar, and are clipped to a bar E on the typewriter frame by depending slidable members F2. The spools C, C<1> carry clutch teeth C<2>, adapted to engage with clutch members C3 fast to the platen journals, and so arranged that by sliding the frame F, F<1> longitudinally one or other of the spools may be engaged with the journal and driven by it. The frame may be held in either position by a bolt L mounted on the member F<1> and engaging either of two diminished parts A<2> of the journal. The ribbon J may pass straight from one spool to the other through apertures in the members F, F<1> or may be brought backwards and forwards through wire loops M, M<1> so that it crosses the platen three times and may be used for taking three copies. The platen and inkribbon mechanism can be removed as a unit and an ordinary platen substituted. Web-guiding arrangements.-For guiding superposed fan-folded or rolled forms, a tray N, Fig. 3, is mounted on arms P<1> which may be swung forwards so that rollers P thereon rest on the platen.
Patent GB-594236-A (GB)
Title: Improvements in silencers for exhaust gases and the like
IPC: F01N1/08
Filed: 1945-02-08
Abstract: 594,236. Silencers for gaseous currents. KIRKLAND, D. E. Feb. 8, 1945, No. 3170. [Class 7 (ii)] In an exhaust-silencer 1, having an inlet and outlet 2,. 3, cones 4, 5 are perforated with different sized holes or slots 6, 7 ... 11, those having larger area being arranged farther from the axis and preferably, those in successive cones having increasing total area. The cones may be arranged in the same direction but overlapping, and one of the cones may have an open apex and be combined with an opposing cone having a closed apex. The area of the perforations in any one cone is at least equal to the area of the inlet. Two opposing cones having open apices may be connected by a perforated tube or two or more metal strips. Specifications 13931/13 and 265,052, [both in Class 7 (ii)], are referred to.
Patent GB-764283-A (GB)
Title: Page protector and bookmark
IPC: B42D3/14
Filed: 1955-02-03
Abstract: 764,283. Book protector ; bookmarker. DAKINS, G. E. Feb. 3, 1955, No. 3171/55. Class 16. A combined page protector and bookmark comprises an adhesive backed sheet 2, a name plate label 3 adhered thereto and a flexible, transparent leaf 1 having one end 1a secured between the sheet 2 and label 3, the sheet 2 being adapted to be permanently attached by the adhesive 2a on the inside of the front cover 4 of a book 5 on the fore-edge near the bottom with the leaf 1 projecting and foldable to overlie the name plate 3 when not in use and when the book is opened, to cover and protect the lower cover of the left hand page where it is normally engaged by the user's thumb and to remain as a bookmark when the book is closed.
Patent GB-587774-A (GB)
Title: Improved process for controlling the temperature of chemical reactions
IPC: B01J8/24
Filed: 1944-02-21
Abstract: The temperature of chemical reactions, particularly the cracking or other conversion of hydrocarbons is controlled by indirect heat exchange with aluidised finely divided solid. Metals, clay, silica, alumina, and other refractory oxides are suitable materials.  The reaction chamber may comprise tubes 4 connected by headers and surrounded by a vessel 1 containing <PICT:0587774/III/1> the fluidised solid.  The latter may be withdrawn by gravity to a cooler 25, re-aerated and passed up pipe 26 to separator 27 from which it is returned to the jacket 1.  The fluidising gas is returned to the pump 21 through a cyclone separator 18.
Patent GB-749041-A (GB)
Title: Improvements in and relating to sanitary appliances
IPC: A61F5/453
Filed: 1954-02-04
Abstract: 749,041. Personal sanitary conveniencies. JOHNSON, A. Feb. 4, 1954, No. 3362/54. Class 26. A sanitary urinary appliance for males comprises, as shown in Fig. 1, a flexible urine receptacle 1 adapted for attachment to the user by a cord or the like passing through a loop 18 and divided into an inlet chamber 24 and a collecting chamber 24a by a partition permitting urine to flow down into the collecting chamber through openings 30 but preventing its return, a flexible sleeve 7 detachably secured to the inlet opening 2 and a valve-controlled outlet 14 with a screw-down valve. The sleeve may be supplied mounted on a removable cardboard former with its periphery having an adhesivecoated fabric band covered with a removable strip of gauze adapted to be secured to a corresponding band on the receptacle. The receptacle may be of transparent material and the partition comprise, as shown in Fig. 7, two flexible sheets 25 each of which is secured to the receptacle along its upper edge 26 and to the other sheet in the areas 27, 28 and 29.
Patent GB-537314-A (GB)
Title: Improvements in or relating to labels or the like
IPC: G09F3/02
Filed: 1940-02-22
Abstract: 537,314. Labels; boxes. TUCK & SONS, Ltd., R., and LEVERS, S. W. Feb. 22, 1940, No. 3367. [Class 73] [Also in Group XVII] A label blank as shown in Fig. 1 may be folded along the lines 5, 5 to form a corner stay for a box as in Fig. 3, or a pocket for the corner of a blotter &c. as shown in Fig. 6.
Patent GB-712856-A (GB)
Title: Improvements relating to diaphragm valves for controlling small gas flows
Inventor: HEATHCOTE KENNETH
IPC: F16K7/16
Filed: 1952-02-08
Abstract: 712,856. Valves. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 29, 1953 [Feb. 8, 1952], No. 3425/52. Class 135 A diaphragm valve for controlling small gas flows, comprises a stainless steel casing clamping between its parts 2, 3 a resilient diaphragm 4 of stainless steel or beryllium copper, and a removable seat unit 7 having a porous plug 8 slightly spaced from the diaphragm when it is undistorted. To cut communication between the valve inlet 5 and its outlet 6 a screw-threaded spindle 15 is rotated so that a self-aligning pressure pad 16 presses the diaphragm on to the seat unit 7. Pressure may alternatively be applied to the pad 16 electromagnetically by a solenoid plunger. Several seat units having different sized bores are usually available. A scaling ring 18 may be made of rubber, gold, aluminium or lead depending upon temperature and the gas being controlled.
Patent GB-162112-A (GB)
Title: Improvements in automatic sash fasteners
IPC: E05F11/00
Filed: 1920-02-05
Abstract: 162,112. Jones, E. T. H. Feb. 5,1920. Window holders for sliding sashes.-A device for securing sliding sashes in the closed or partly opened position comprises a button a upon a spindle b, which when in the inclined position engages racks d, e, so as to lock both sashes against further opening. Release is effected by a push h which operates a rack g geared with a pinion f on the spindle b, and turns the button a into the vertical position.
Patent GB-366718-A (GB)
Title: Improvements in the production of knitted and woven fabrics and articles
IPC: D06M15/07
Filed: 1931-02-04
Abstract: Knitted or woven fabrics or articles made of artificial silk, other than cellulose ester or ether silk, are treated uniformly in the course of manufacture with a non-aqueous solution of a waterproof cement or adhesive, and are then dried.  The strength of the solution is such that the intercrossing threads are caused to adhere, but the interstices between the threads are not filled. Distortion of the materials through use, and laddering of the knitted materials, are thus prevented.  As an example, the fabric or article may be dipped in or passed through a 10 per cent solution of celluloid in amyl acetate, and then dried. Specifications 170,171, 260,290, 280,990, 291,473, 291,474, 324,641, [all in Class 42 (i), Fabrics, Finishing &c.], and 346,511 are referred to.
Patent GB-112354-A (GB)
Title: Improvements in Life-saving Apparatus for use in conjunction with Ships' Boats.
Inventor: ANDREOLI PIERRE NEIL
IPC: B63C9/02
Filed: 1917-03-09
Abstract: 112,354. Andreoli, P. N. March 9, 1917. Life-lines, appliances for carrying and using; life-line attachments. - The occupants of a boat are tethered, if necessary, so as to prevent their being washed away. Rods, bars, ring bolts, or hooks c are secured to each side of the bottom and tethering-lines f are removably secured, these lines when not in use being adapted for attachment to hooks e suspended from the thwarts b.
Patent GB-808303-A (GB)
Title: Rotatable drying cylinder
Inventor: ARMSTRONG ADAM E
IPC: F26B13/18
Filed: 1957-02-01
Abstract: 808,303. Hollow drying cylinders. ARMSTRONG MACHINE WORKS. Feb. 1, 1957, No. 3550/57. Class 34(1) In a steam-heated drying cylinder 1 the condensed water is removed by means of a scoop 10 and siphon tube 6 which rotate with the cylinder. The water collects in the scoop during its upward movement and passes through a narrow slit 14 into a chamber 15 to which the siphon tube 6 is connected, thence it passes through an axial pipe to outside the cylinder. A rod 8 and weight 9 counterbalance the tube and scop. In a modification (see Fig. 3, not shown) a groove-like sump is formed in the cylinder wall below the rear edge of the scoop.
Patent GB-701482-A (GB)
Title: Improvements in or relating to television and like transmitter installations
Inventor: COOPER VICTOR JAMES
IPC: H04N5/38
Filed: 1952-02-11
Abstract: 701,482. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 17, 1952 [Feb. 11, 1952], No. 3614/52. Class 40 (3). [Also in Group XXXV] In a television or like installation of the kind in which a single carrier source is connected to the aerial or load through two or more channels, each giving an ouput of constant amplitude, phase relation at the common output is corrected and maintained by comparing the combined output with a standard output (a little below that which obtains when the outputs are exactly in phase), and using the resulting voltage to control the phase shift in one or more channels. As shown, the carrier source C.D. feeds two driver stages A1, A2, one in each channel, which feed modulating amplifiers B1, B2 whose output is combined in a mixer PM and fed to a load. The mixer output is also taken to a control circuit F for producing a D.C. potential responsive to departure from a predetermined level which may be fixed at 98 per cent of the level which would be obtained if the two channels were operating in phase agreement. The D.C. potential is thus applied in the corrective sense to the grid of a phase-control valve 1 associated with a condenser 4 in a tuned circuit 5 of the driver stage A2. Each of the amplifiers B1, B2, is provided with an automatic amplitude control circuit of the kind described in Specification 668,728, their output being rectified m gated rectifiers El, E2 and the resultants fed to control circuits D1, D2 which control the modulators C1, C2 so as to maintain constant the black levels in the outputs of each channel. Gating of the rectifiers El, E2 renders them effective only at the instants of transition from picture signal to sync. signal and vice-versa; and similar gating is provided for the control circuit F. The phase control system is applicable to television transmitters using either positive or negative picture signal modulation. In the latter case, the D.C. control potential may be derived from the combined output at PM by a peak voltmeter responsive to the positive-going sync. signals, and gating is not required.
Patent GB-757041-A (GB)
Title: Improvements relating to the mechanical harvesting of beet and like root crops
IPC: A01D25/02
Filed: 1954-02-09
Abstract: 757,041. Digging root-crops. STANDEN & SONS, Ltd., F. A., and STANDEN, P. April 21, 1965 [Feb. 9, 1954], No. 3799/54. Class 6 (3). A soil-breaking attachment for the double-shares of beetharvesting machines comprises a pair of pointed bars 1 having integral lugs 2 by which they are mounted on the outer sides of the shares A so as to crumble the soil in the area surrounding the zone of action of the shares. The lug 2 may be welded to the share A or secured thereto by bolts 3. The lug may also be secured to the share-stem (not shown).
Patent GB-1184742-A (GB)
Title: Modified Cellulosic Fibres and Fibrous Products having Resistance to Wetting by Aqueous Media
IPC: C08G18/77
Filed: 1967-01-26
Abstract: 1,184,742. Coating. UNION CARBIDE CORP. 26 Jan., 1967 [27 Jan., 1966], No. 3909/67. Heading B2E. [Also in Divisions C3, Dl and D2] Cellulosic fibres such as cotton or paper are treated at least on the surface with an isocyanate modified, silicone compound represented by one of the formulae: where R is an alkylene group, R' is an alkyl or aryl group, Z an alkoxy group, an aroxy group or a siloxane group of formula R 3 SiO¢, b is 0 to 2 inclusive, x 1 to 10<SP>4</SP>, y 1 to 10<SP>6</SP>, c is 3-b and the ratio of y+c to x is not greater 2 than 1000. A small amount of the compound (0.2 to 3% by weight for treating cotton) gives enhanced water resistance, while a continuous surface layer makes the fibres adhesive. It may be added before, during or after the paper making process, alone, in solutions in hexane, mineral spirits, kerosene, toluene, xylene or perchloroethylene, or as an emulsion, which may be anionic, cationic or non- ionic such as polyvinyl alcohol, trimethylnonylpolyethylene glycol/nonyl phenyl polyoxyethylene glycol ether blends or polyoxyethylene sorbitan monooleate. To treat cotton, it is dipped into a bath of the emulsion of the sizing agent. The cellulosic fibres may also contain additives such as clay, TiO 2 , CaCO 3  starch, rosin, wet strength resins, polyvinyl alcohol, carboxymethyl cellulose, gum, urea-formaldehyde resins, melamine-formaldehyde resins, the sulfonium methyl sulphate salt of acrylic acid - acrylamide copolymers, amine-epichlorohydrin derivatives or "wash- and-wear" resins. Curing catalysts may also be used, such as dibutyltin dilaurate, strong bases, nitrogen compounds such as triethylene diamine, tetramethyl guanidine and the N- alkylethylene imines, organotitanium compounds, organotin compounds and metals such as lead, iron and tin. In examples, further emulsifying agents are N-cetylethyl morpholinium ethosulphate, a sulphonated aliphatic polyester, polyoxyethylene esters of mixed fatty and resin esters and zinc octoate. The sizing agent can be prepared by contacting an aminohydrocarbylsilane or aminohydrocarbylsiloxane with phosgene, optionally in the presence of an inert organic solvent.