baber/WOPTO huggingface dataset:
Patent GB-1456724-A (GB)
Title: Xeroradiographic member hypodermic needles and supports therefor
IPC: G03G5/02
Filed: 1974-02-01
Abstract: 1456724 Electro-photographic members for x-ray exposure INTERNATIONAL STANDARD ELECTRIC CORP 1 Feb 1974 [3 Feb 1973]  04811/74 Heading G2C An electro-photographic member for x-rays comprises (1) an electrically conductive support, (2) a layer of Se, (3) a layer of Se and an element of A.W. equal to or above La or a compound thereof and (4) a layer of Se and an agent retarding crystallization e.g. As layer (3) being between layers (2) and (4). Specified elements for layer (3) are Pb, Tl and rare earths. There may be a layer of polyvinyl acetal with lampblack and/or graphite between the support and layer (2).
Patent GB-305380-A (GB)
Title: Improvements in or relating to apparatus for the fully automatic turning of buttons
IPC: B29D19/04
Filed: 1928-02-15
Abstract: 305,380. Sylbe, P., Pondorf, H. J., Pandorf, P., and Sylbe, J., (trading as Sylbe & Pondorf Maschinenbauges.). Feb. 15, 1928. Lathes - Button turning lathes are rendered fully automatic. The blanks are fed from a hopper to a channel which leads laterally to the chuck into which they are inserted by a finger. The chuck, a bevel closing one of usual design, is such that the position of the blanks relatively to the front of the headstock varies according to the diameter. To prevent variation in the turned thickness of the button the draw spindle. of the chuck is connected by an arm 26 to a sliding rod 10 carrying a stop (not shown) to arrest the tool holder 3. This is fed by a rod 11 actuated by a cam 20 through a sleeve 14. The sleeve is connected to the rod by a cross pin 15 and screw 12 to provide adjustment. A spring 17 yields when the tool-holder abuts the stop. A spring 13<a> eliminates play due to back lash between the screw and cross pin. On each return stroke of the rod 11 a pin 33 engages a pawl lever 32 acting through a worm-wheel nut 30 to feed the tool 4 to permit regrinding as it passes the fixed wheel 27.
Patent GB-875483-A (GB)
Title: Improvements in or relating to overload release devices
IPC: F16D43/206
Filed: 1957-02-13
Abstract: 875,483. Overload release clutches. CAMPBELL & ISHERWOOD Ltd., and MEREDITH, J. Feb. 12, 1958 [Feb. 13, 1957], No. 4847/57. Class 80 (2). In an overload release clutch of the kind in which an axially slidable member 14, in helically splined engagement 13, 15 with axially fixed input and output members 12, 16 respectively, can, under overload, overcome with a snap action a spring-loaded ball arrangement 22, 23 to move axially left and break the splined drive connection 15 with the output member 16 only, resetting means comprise a pawl 28 on the member 14 permanently engaging an output mounted ratchet 33 to prevent backward movement of the member 14 relative to the load whilst the input member 12 is rotated backwards by a pawl-carrying handlever (not shown) engaged with an input mounted ratchet 31. The backward input rotation acts through the helical spline 13 to move the member 14 axially back to the right to re-engage the output helical splines 15. The ratchet ring 33 is helically splined on the output member to turn and slide with the member 14. The torque-supporting loading of the axially movable member 14 comprises an adjustably spring-loaded centre ball 23 engaging outer balls 22 bearing in a chamfer 21 in the member 14 to produce the required snap disengagement. The leftward movement of the centre ball 23 moves left a rod 38 which engages an offset bore in a member 35 to pivot the latter which operates a switch 32 which may control an alarm or may serve as a relay for stopping the driving motor. The input member 12 is secured to a driving sprocket 10 and the output 16 to a shaft 11 driving a winch. Specifications 636,404 and 733,742 are referred to.
Patent GB-497517-A (GB)
Title: Improvements relating to film feed mechanism for photographic roll film cameras
IPC: G03B19/04
Filed: 1938-02-16
Abstract: 497,517. Photographic roll - film cameras. FRANKE, P., and HEIDECKE, R. Feb. 16, 1938, No. 4853. Convention date, Feb. 23, 1937. Addition to 426,915. [Class 98 (i)] The film feed mechanism claimed in the parent Specification is modified in that the film feed is automatically stopped on the completion of winding each picture length by the engagement of a tooth with a notched wheel rotated through a coupling put into operation by the finger or feeler actuated by the ridge at the joint of the film and paper. In the form shown, the take-up spool is driven through gearing from the handle 1, the spindle of which carries a ratchet wheel 8. The film on the spool engages frictionally a wheel on a resilientlymounted shaft which also carries a pinion 3. This engages a gear 4 to which is attached a pinion 4a and which is mounted on the bellcrank 9. The backing paper is wound up at the commencement of winding until the leading edge of the film strikes a roller 17 mounted on a bell-crank 19. The nose 20, engaging the arm 13a of a member 13 rocks the latter so that it no longer retains the projection 12a attached to the link 12. This allows the link 10 and bell-cranks 9 and 11 to be moved by springs 9a and 11a, thus engaging the pinion 4a with a gear 5 attached to the notched wheel 6. When this has rotated sufficiently, the tooth 7b drops into one of the notches and locks the driving mechanism by engaging the end 7a of the pawl 7 with the ratchet wheel 8. Additional means (not shown) must be provided to release the tooth 7b from the notched wheel before the next section of film can be wound. The member 13 is pivoted to a pivoted member 14 restrained by a projection 15 on the inside of the hinged camera wall. Thus, when the camera wall is opened, the roller 17 is allowed to lift, for film threading, without releasing the projection 12a.
Patent GB-492441-A (GB)
Title: Method and apparatus for purifying water, particularly so-called "white" water of paper, cellulose, wood-pulp and textile-mills
IPC: B03D1/14
Filed: 1937-02-19
Abstract: 492,441. Recovery of fibre &c. from waste water of paper mills &c. KARLSTROM, A. M. R. Feb. 19, 1937, No. 4990. [Class 96] [Also in Group I] In the separation of suspended particles from water, for example fibres from the waste water of paper, cellulose, woodpulp or textile mills, by means of gas bubbles, the gas which has been introduced into the liquid but has not dissolved therein is removed from the liquid before the latter enters the separating-tank and, as the liquid rises into the tank under progressively reduced pressure and the gas, which was dissolved, forms bubbles which collect on flocculated fibres, the liquid is subjected to such action as will counteract the tendency to accelerated upward movement of the gas-charged particles. With the apparatus shown in Fig. 1 air is supplied to the liquid under treatment by ejector 52 as it passes through a conduit 3 to an open tank 4. Undissolved air escapes in the tank 4 and the liquid is drawn up a tube 2 into a closed tank 1, when fibrous matter is removed from the surface of the liquid by a suction nozzle 6 on a hollow arm 7 supported and rotated by a hollow shaft 8. The suction maintains a reduced pressure in the tank 1. Arms 14 on a shaft 11 connected to the shaft 8 agitate the liquid in the tube 2 and prevent the rapid rise of the gas-charged flocs. The agitator may be replaced by a double-threaded screw on a central axis which causes a rotary movement of the liquid in the tube 2. Alternatively rotary movement may be caused by forcing water or steam through tangentiallydirected nozzles into the tube 2. Purified liquid leaves the tank 1 through a pipe 10. Fig. 4 shows modified apparatus in which the liquid is charged with air by a pump 19 and passed into a closed tank 25 where undissolved air collects above the liquid and is discharged through a float-controlled valve 27, the liquid passing through a conduit 26 to the tube 2. The tank 1 is open and the fibres are collected by blades 30 depending from rotary arms 7 and directed into outlet pockets 31. The clear liquid passes away over weirs 33. A flocculating agent such as alum glue or resin size may be supplied to the liquid through pipes 29. Fig. 6 shows a further modification in which undissolved air escapes from the liquid in a horizontally-extended container 25 having a rotary agitator 34. The air and liquid spaces in the container 25 are connected by conduits 37, 36 with a tank 38, which is fitted with a float-controlled valve for the discharge of air so that a constant liquid level is maintained in the vessels 25, 38. The agitator in the conduit 2, which is formed of horizontal rods 39 connected to vertical rods 40, may be given both vertical and horizontal movement. The fibres are collected from the surface of the liquid in the tank 1 by blades 42 on an endless belt 41.
Patent GB-695588-A (GB)
Title: Fenders or dummies for docks and harbours
Inventor: TWEDDELL ARCHIBALD JOHN
IPC: E02B3/26
Filed: 1951-03-01
Abstract: 695,588. Fenders. UNION-CASTLE MAIL STEAMSHIP CO., Ltd. Feb. 12, 1952. [March 1, 1951] No. 5038/51. Class 113 (i). In a fender comprising rigid longitudinal members A. B, C, each consisting of one or more baulks of timber 1,2, 3, the members are separated from each other by one or more resilient members 4 sandwiched between them, the outer side of one of the outer longitudinal members having fixed thereon one or more resilient members 8. The resilient members may be in the form of hollow rings, e.g. motor vehicle tyres, and each ring may comprise two or more hollow rings fitted concentrically one within the other. The resilient members 4 are arranged in staggered relationship and may be in the form of blocks of sponge rubber.
Patent GB-733216-A (GB)
Title: Electromagnetically operated electric vibrator
IPC: H01H50/76
Filed: 1953-02-24
Abstract: 733,216. Electromagnetic relays. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Feb. 24, 1953 [March 4, 1952], No. 5134/53. Class 38 (5). A relay comprises a strip b made rigid over the greater part of its length by being clamped between a pair of plates P,P<SP>1</SP> so that it flexes in the region n. The strip b carries a weight W at its free end and has a pair of lugs I, I<SP>1</SP> cooperating respectively with stressed contactcarrying blades L, L<SP>1</SP> so that when the blade is in its central position the lugs prevent the blades from flexing and engaging screw contacts K, K<SP>1</SP>. The blade is set in vibration to permit the alternate periodic engagement of the contact pairs by momentarily energizing a magnet coil r whereby an arm R on the armature s deflects the strip and sets up free oscillations in the latter. The frequency of the oscillations is adjustable by varying the tension of a spring a connected to the strip b at t, the spring passing freely through an opening in the weight W and being connected at its other end to a blade f biased against an adjustable screw stop h. Thus screwing down of the stop h deflects the blade f to reduce the tension of the spring a and in turn reduces the frequency.
Patent GB-1249732-A (GB)
Title: Radial piston type hydraulic pump or motor
IPC: F01B1/06
Filed: 1969-01-30
Abstract: 1,249,732. Radial cylinder pumps or motors. HITACHI Ltd. Jan.30, 1969 [Feb. 5, 1968; Feb.21, 1968 (2)], No.5138/69. Heading F1A. In an inwardly acting radial cylinder pump or motor in which the pistons carry balls or rollers 9 and are reciprocated by a multilobed cam 11, the side thrust force F1 which is exerted by each piston on its associated cylinder wall on the outward stroke is counterbalanced by the admission of pressure liquid between the piston and cylinder at the position of application of that force. As shown in Fig. 3 a cylinder block having cylinders 2 rotates with a shaft 1 Fig. 1 (not shown) and has secured thereto an annular valve member 14 rotatable about a valve surface 20 of a valve body 19 secured to the casing (10), the valve body 19, for motor operation, alternately supplying and exhausting pressure liquid from the working chamber 13 via passages 14, and supply passage 21 on the pressure stroke, and passages 14 and exhaust passage 22 on the exhaust stroke. With the motor rotating anti-clockwise pressure liquid is admitted to chamber 13 and also passes through supply passages 21, 31 communicating on the outward stroke with distribution recesses 41 open via passage 33 to the opening 35 in the cylinder 2 to counterbalance the thrust force F1 When the motor rotates clockwise the thrust force acts on the opposite wall of the cylinder and is counterbalanced through opening 36. In alternative constructions the passages supplying pressure liquid to the gaps between the piston and cylinder are located within the piston and maybe provided with spring-loaded lift valves which automatically control the flow of liquid according to the gap between the piston and cylinder. In a further embodiment the passages are located in the cylinder and have restrictions controlling the pressure liquid flow.
Patent GB-938642-A (GB)
Title: Methods and materials for the finishing of fibrous glass fabrics
IPC: D06M15/55
Filed: 1962-02-09
Abstract: 938,642. Coated glass fabrics. OWENSCORNING FIBERGLASS CORPORATION. Feb. 9, 1962 [Feb. 24, 1961], No. 5143/62. Drawings to Specification. Class 140. [Also in Groups. IV (a) and IV (c)] Fibrous glass fabrics are treated with finishing compositions comprising in aqueous dispersion 3 to 15% by weight of a polymer or copolymer of acrylic or methacrylic acids or esters, 3 to 15% by weight of epoxidized soybean oil and 0.01 to 1% by weight of an emulsifier. The compositions may also comprise coupling agents, such as compounds of formula R n SiX 4-n  where R is alkyl, aryl or aminoalkyl, X is halogen or alkoxy and n is 1 to 3, or Werner complexes such as stearato- or methacrylato-chromic chloride. Alternatively the finish treated fabrics may be treated with a solution of the Werner complex in a separate step. The preferred acrylic resin is a coplymer of ethyl acrylate and acrylic acid. Specified emulsifiers are alkyl aryl polyether alcohols, polyethylene glycol, polyethylene glycol esters, polyoxyethylene esters of carboxylic acids and sorbitan esters. A process in which a glass fabric which has been subjected to a weave setting operation is padded on leaving the oven with a finishing composition of the invention and subsequently dried and cured is described and illustrated. Specifications 719,466, 748,391 and 789,240 are referred to.
Patent GB-1100773-A (GB)
Title: Paint supply apparatus
IPC: F04B17/06
Filed: 1966-02-07
Abstract: 1,100,773. Coating apparatus. DEVILBISS CO. 7 Feb., 1966 [18 Feb., 1965], No. 5179/66. Heading B2L. A portable unit for supplying coating material under pressure to an airless spraygun 62 comprises a platform 13 having a first portion to receive a coating material container 14 and a second portion to receive a solvent container 15, a pump unit 30 having a drive motor 66 and a pump 54 therebelow for supplying coating material and solvent from the respective containers to gun 62, means for supporting the pump unit in a first position in which the pump is in the coating material container and in a second position in which it is in said solvent container and means for enabling the pump unit to be moved from one of the positions to the other. The pump unit is preferably mounted on a support stem 28 and is guided there on by rollers such that it can be raised on the stem from one position of the pump, turned on the stem, and lowered into the other position of the pump. Means may be provided for maintaining the pump in its raised position. Pump 54 is preferably of a piston type operated directly from a piston type hydraulic motor 66 in a hydraulic system pressurised by a pump driven by an electric motor. The motor may also drive a fan for cooling the fluid in the hydraulic system.
Patent GB-663852-A (GB)
Title: Leak detector for evacuated systems and devices
IPC: H01J9/42
Filed: 1948-02-23
Abstract: 663,852. Ionization gauges. RADIO CORPORATION OF AMERICA. Feb. 23, 1948, [March 7, 1947], No. 5314/48. Class 37. [Also in Groups XIX, XXXV and XL (a)] An ionization gauge for use in apparatus for detecting leaks in an evacuated system or device (see Group XIX), comprises a tubular anode 33 sealed by a palladium cap 38 which, when heated due to the discharge in the gauge, allows hydrogen to pass. A small amount of hydrogen is continuously supplied to the gauge to prevent oxides being formed on the palladium. The cylindrical cathode 34 is coated with barium and strontium oxide and is heated by a filament 35. A tubular electrode 36 is given a negative potential so that it collects positive ions, the current in a circuit (not shown) including this electrode corresponding to the amount of hydrogen in the gauge. Specification 619,133 is referred to.
Patent GB-238145-A (GB)
Title: Improvements in and connected with carriage driving mechanism of typewriting and like machines
IPC: B41J19/36
Filed: 1925-02-26
Abstract: 238,145. Tugwood, R. J., (Daimler- Motoren-Ges.). Feb. 26, 1925. Letter-spacing mechanism; locking-devices. - In machines having a detachable bed for the paper-carriage, automatic means is provided for locking the carriage propelling-spring when the bed is detached. As applied to machines having a spring drum c provided with a pinion d engaging a rack b on the carriage a, the locking-device consists of a pivoted catch f connected to a bolt g which is normally depressed by the bed a<1> of the carriage, a spring k causing the catch to engage the pinion when the bed is detached.
Patent GB-1108606-A (GB)
Title: Improvements relating to a liquid heating and circulating unit
Inventor: GOODWIN ALFRED STANLEY
IPC: F24H9/20
Filed: 1965-02-08
Abstract: 1,108,606. Electric liquid heaters. BAIRD & TATLOCK (LONDON) Ltd. 28 Jan., 1966 [8 Feb., 1965], No. 5352/65. Heading H5H. A liquid heating and circulating unit comprises a pump impeller 11 in the lower part of a tubular housing 1, a heater 17 laterally displaced from the housing, a tubular inlet connection 39 to the housing from near the heater. another inlet 40 to the connection or the housing and an outlet 16 in the housing near the impeller. The heater comprises a sheathed cable and surrounds a second tubular housing 2 to which connection 39 is attached. Both housings extend from a head 3 containing a fan cooled electric motor 6 driving the impeller and a microswitch 26 controlling the heater. The switch is operated by a temperature sensitive fluid filled bellows 19 mounted in the second housing, a neon light 38 indicating when the heater is energized. A knob 32 controls the setting of the switch and moves a, calibrated plate 36, visible through a window 37.
Patent GB-461776-A (GB)
Title: Improvements relating to carburetters for internal combustion engines
IPC: F02M1/04
Filed: 1936-02-22
Abstract: 461,776. Carburetters. MORRIS INDUSTRIES, Ltd., and SKINNER, T. C. Feb. 22, 1936, No. 5400. [Class 7 (iii)] The fuel jet b of a starting carburetter is controlled by a needle f carried by a piston g, and is restricted when the suction in the induction pipe increases. Air is supplied through passages around or through the piston g and through a hole m adjacent the jet b. The starting carburetter is put into and out of action by a valve o, which is opened against the action of a spring r by an electromagnet p, when a thermally sensitive switch u, v and a manually actuated switch t are closed.
Patent GB-1082184-A (GB)
Title: Thiamine derivatives
Inventor: FUSCO RAFFAELLO
IPC: C07D415/00
Filed: 1966-02-08
Abstract: The invention comprises thiamine derivatives of formula <FORM:1082184/C2/1> where R is hydrogen, halogen or an alkyl group containing 1 to 3 carbon atoms.  The compounds are prepared by reacting a metal or ammonium salt of thiol-form thiamine with a compound of formula <FORM:1082184/C2/2> where R is as above and X is halogen.  The compounds may be converted to acid addition salts.  In examples compounds are prepared by reacting the sodium and potassium salts of thiol-form thiamine with the chloromethyl esters of benzoic acid, o-, m- and p-toluic acids, p-chloro-benzoic acid, p-ethyl-benzoic acid and p-isopropyl-benzoic acid.  The above compounds may be mixed with pharmaceutical carriers for oral, parenteral or intraduodenal administration.
Patent GB-658334-A (GB)
Title: Improvements relating to the manufacture of hollow rubber articles cured in moulds
IPC: B29D22/00
Filed: 1949-02-28
Abstract: 658,334. Moulding hollow rubber articles. PIRELLI SOC. PER AZIONI. Feb. 28, 1949, No. 5466. Convention date, April 7, 1948. [Class 87 (ii)] In the manufacture of hollow rubber articles such as hot water bottles, ice pouches, rubber bulbs, syringes, gloves, &c. in a two-part mould consisting of a core and a spaced outer member, the tendency for air trapped in the mould between the core and the crude rubber sheet or sheets in contact therewith to produce defects in the article during cure is avoided by forming the core with one or more recesses of diminutive dimensions relative to the superficial area of the core, these recesses forming air pockets into which the trapped air can escape. The recesses are located only in zones where trapped air tends to collect and the number and size of the recesses in the zones are made proportionate to the volume of air trapped in the various zones. In the manufacture of a hot water bottle where air tends to collect along the joining line of the two crude rubber sheets employed, recesses 12, Fig. 5, which may, as shown, be of various shapes and sizes, are formed along the periphery of the core. It may be necessary to form a greater number of recesses on the part of the core forming the shoulder than on other parts. The number, size and location of the recesses may be predetermined by way of a preliminary curing operation with an unrecessed core, the location and magnitude of the defects in the wall of the cured article being used as a guide in the making of the recessed core. In the manufacture of parts of articles of relatively complicated shape, e.g. the fingers of gloves, where drilling of recesses may be difficult, holes such as 25, Fig. 8, may be drilled from one side of the core to the other through the parts in question and the holes partially plugged, e.g. with short lengths of wire 24, to form the recesses. The projections formed on the inside of the glove are afterwards removed.
Patent GB-114061-A (GB)
Title: Improvements in or relating to Safety Track Switches for Tramways.
Inventor: DARK WILLIAM ALFRED
IPC: B61K5/06
Filed: 1917-04-20
Abstract: 114,061. Dark, W. A. April 20, 1917. De-railing devices.-A de-railing switch for a tramway comprises a pivoted bar 2 formed with a vertical flange 5 and inserted between two separated sections of one of the track rails. When moved into the position shown, the wheel of a tram engages the flange and is thrown off the track. Stops 8 limit the movement of the bar 2 which is operated by a bell-crank lever 12 having'' a counter-balance weight 13.
Patent GB-925415-A (GB)
Title: Improvements in parachute apparatus
Inventor: BROWNING ALAN CYRIL
IPC: B64D17/34
Filed: 1960-02-17
Abstract: 925,415. Parachutes. MINISTER OF AVIATION. May 12, 1961 [Feb. 17, 1960], No. 5587/60. Class 4. Parachute apparatus includes means for reducing the velocity at which a load strikes the ground by effectively shortening just prior to and as the load comes into contact with the ground means by which the load is connected with the canopy wherein the shortening is effected by oppositely bowing or bending away from one another portions of said connecting means. A parachute PA supports a load L by twin cords C to which are attached respectively weights M1 and M2 housed within a sleeve CY containing an explosive charge. A weight I is suspended from the load by a trailing line and when the weight comes into contact with the ground G it initiates firing of the explosive charge which expels weights M1 and M2 as shown in Fig. 2(c) thereby reducing the impact of the load upon landing. In an alternative embodiment the parachute and the load are connected by a balloon which is explosively inflated.