baber/WOPTO huggingface dataset:
Patent GB-1517909-A (GB)
Title: Radiographic system
IPC: G03B42/02
Filed: 1976-06-16
Abstract: 1517909 Automatic control MACHLETT LABORATORIES Inc 16 June 1976 [16 June 1975] 24899/76 Heading G3N [Also in Division H5] In a radiographic system an x-ray beam is limited by an adjustable collimator to match the bounds of an image receptor before an automatic control means allows response to be made. The source 22 and collimator 50, supported on telescopic pintle 62 from carriage 86, may be tilted about pivot 60 to expose either table or wall mounted image receptor 64a or b through an intervening patients body, the available sourceimage distances being e.g. 40" for the vertical beam and 40 and 72 inchs for the horizontal beam 48. The collimator comprises crossed pairs of linked swinging x-ray opaque plates 52, 54. The image receptor Fig. 1 (not shown) comprises a frame allowing insertion of standard film cassettes having 'cross' and 'long' dimensions e.g. 8 x 10, 10 x 12, 14 x 17, 17 x 14 inches. Both frames 64a, b carry switches indicating the presence of and the two dimensions of the cassette; the collimator 50 carries manual adjusting knobs coupled to the collimator plates and to indicating switches, selecting and indicating the collimator angle corresponding to a 'cross' dimension of one of 8, 10, 14, 17 inches at 40 inches and 8, 14 inches at 72 inches; and for a 'long' dimension of one of 10, 12, 14, 17 inches at 40 inches and 10, 17, inches at 72 inches. Switches 76 on the pintle and 90, 92 on the carriage rail indicate when the standard distances 40 or 72 inches are achieved, and mercury switches on the collimator signal vertical or horizontal beam orientation. The collimator carries Fig. 2 (not shown) lamps which light to indicate horizontal or vertical setting of the beam, manual or auto control of the x-ray beam; 'exposure hold' when the collimator is not correctly set, 'close' and 'open' to indicate which way adjustment is required, and collimator 'ready' 'cross' and 'long' to indicate adjustment complete. All switches and lamps are connected by leads 57, 70, 72, 78, 96 to the collimator monitoring unit 44 in which logic ciruits feed 0 or 1 to eight input terminals of a programmed read-only memory feeding logical signals to 'M' and 'G' output terminals Fig. 4 (not shown). 'M' changes the lamp from 'manual' to 'auto' and removes the facility for manually by-passing the system; it is activated whenever a cassette is present and the beam is correctly oriented for it. 'G' is then activated when the collimator is set correctly for the distance and size of the cassette and the last adjustment in both dimensions has been made inwards; G allows triggering of the x-ray tube via lead 42. The remaining lamps are controlled by the input logic circuits. After adjustment of the beam to match the cassette, further adjustment to a still smaller size may be permitted.
Patent GB-1075764-A (GB)
Title: Improvements in rolling or milling machines
IPC: B02C4/04
Filed: 1964-06-16
Abstract: 1,075,764. Rolling plastics material. A. L. VERDIER. June 16, 1964 [June 21, 1963], No. 24906/64. Heading B5A. [Also in Division B2] A sealing device 39, for a grinding or rolling apparatus, Fig. 7, is suspended by a shaft 40 in slotted bearings (41, Fig. 9) carried by a support 38 which is fixed to the bearings 37, 37a of the two rolls 1, 2. The shaft 40 is mounted in bearings 43 of the device 39 and comprises, in each of the bearings (41) two flat surfaces (40a) so that, by turning this shaft by a knob 40b through a quarter turn, the device 39 can be removed. The device 39 comprises a baseplate 44, carrying two stainless steel plates 45, 46, between which there slides vertically a stainless steel bar 47 into which is fitted a tungsten carbide bar 48. The bar, which is urged against the flanks 10 of the facing rolls by an hydraulic jack 49, has a P.T.F.E. and molybdenum disulphide coating on its face (48a). Further sealing is effected by strips 50 applied by jacks 51, 51a, 51b against the flanks 10 of the rolls. These strips, which are bent in circular arcs, follow the outer contour of the plates 45, 46 and slide between the plates 45, 46 and guides, which are fast with the base-plate 44. The sliding of the bar 47 which carries the sealing bar 48 is controlled by an adjustable device comprising a nut (54c) on a thread to rod (54b) secured to a pin (54a) fixed in the bar 47. After a period of operation, when a furrow has been worn in the bar 48, the jacks are slackened and the device 54 is operated to lower the bar 48 so that it presents an unworn surface. The support 38 and sealing device 39 are capable of following the rotation of the bearings 37, 37a of the rollers, where these are to be offset. Sealing strips, like strips 50, may be used with an arrangement in which the places of contact between the co-operating rolls (1, 2, 3, Fig. 1) of the apparatus are sealed at each end by a sealing element (12) maintained in contact with the ends (10) of the rolls. The element (12, Fig. 4) which has a plane sealing face (12a) and is urged against the ends (10) of the rollers by an hydraulic jack, has a bore (14) receiving a disc (16) having an abrasion-resistant sealing face (16a). The disc bears against a block (17) having a stem (18) screw-threaded in the element (12) and locked by nuts (19). After a period of operation, the element (12) and its included parts are removed and the disc (16), after being expelled from the bore (14), is turned to present an unworn part of its face and reinserted in the bore, the lock nuts (19) then being tightened and the device replaced.
Patent GB-754404-A (GB)
Title: Improvements in or relating to electrical devices of the semi-conductor type
IPC: H01L29/00
Filed: 1954-08-27
Abstract: 754,404. Semi-conductor devices. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 27, 1954 [Sept. 4, 1953], No. 24923/54. Class 37. A method of producing a transistor having a " hook collector " comprises a semi-conductor base 10 (Fig. 3), e.g. of P-type, to which is added a pellet 11 of an alloy containing a P-type impurity with a slow rate of diffusion and a small quantity of an N-type impurity having a fast rate of diffusion, whereby, on heating, the impurities alloy with and diffuse into the molten semi-conductor base to produce a layer 13 containing a predominance of P-type impurity, and a layer 14 with a predominance of N-type impurity, the combination forming a hook collector. A button 15 of N-type impurity material, or a point contact electrode, is added to a face of the base 10 to form an emitter. The base material may be germanium, silicon or an alloy of the two. For use with a P-type base, the pellet 11 may consist of the fast-diffusing N-type impurities arsenic, antimony or lithium, and the slow-diffusing P-type impurities-indium, aluminium or gallium; for use with an N-type base the fast-diffusing P-type impurity is -copper. The pellet may also contain an inert metal, e.g. lead, tin or gold. The proportions of the materials in the pellet depend on their diffusion rates, their segregation coefficients and the temperature. Transistor construction.-In one form of transistor construction the base 10 is supplied with a hook collector in the shape of a comb 21 (Fig. 6) and an emitter in the shape of an interleaved comb 22. In another form a point contact emitter is located on opposite sides of the hook collector. An improved rectifier may also be made with hook collector layers 13, 14 between a collector electrode 17 (Fig. 10) and the semi-conductor 10, e.g. of P-type, with an N-type region 15 connected to the emitter electrode, or with a plurality of emitters 27 (Fig. 11) and base connectors 28 formed as interleaved combs, the former comprising lead with an N-type impurity, and the latter of lead with a P-type impurity.
Patent GB-1191059-A (GB)
Title: Magnetic Tape Transport
Inventor: WILLARD DENNIS
IPC: G11B15/58
Filed: 1968-05-24
Abstract: 1,191,059. Feeding record tapes. D. WILLARD. 24 May, 1968 [29 May, 1967], No. 24956/68. Heading G5R. A low-inertia buffer loop is formed in a tape 15 by the pressure on the tape of an expandable enclosure 31, e.g. a bellows or a telescopic tube. A motor 82 drives the tape reels 12, 14 and a pump 46, which supplies a substantially constant air pressure to the enclosures 31 through a tank 52 and also provides a capstan 42 with an air bearing for the tape during fast winding and with suction for gripping the tape during normal driving. The apparatus is particularly intended for use at high altitudes.
Patent GB-649879-A (GB)
Title: Gun firing mechanisms
IPC: A01M27/00
Filed: 1948-09-24
Abstract: 649,879. Smallarms. SAMUEL, C. H., and JONES, L. Sept. 24, 1948, No. 25014. [Class 119] A box 5 intended to be buried beneath the ground surface 9 is fitted with a trip plate 13 which is operatively connected to the trigger of a gun A inside the box, the arrangement being such that the depression of the plate, by the foot of an unsuspecting enemy, causes the gun to be discharged. The gun discharges through a tube 10 in the lid of the box in a direction towards the person who treads upon the plate. The connection between the plate and trigger in the construction shown includes a yoke 18 pivoted at 19 to a floor bracket 20 and engaging at one side with the trigger and at the other side with a rod 14. The rod pivots about another floor bracket 16 and engages with a rod 12 projecting downwards from the trip plate.
Patent GB-212198-A (GB)
Title: Improvements in or relating to signal lamps
IPC: B61L5/18
Filed: 1922-10-24
Abstract: 212,198. Day, S. M. Oct. 24, 1922. Signal lamps; mounting electric lamps in lanterns; lanterns, glazing.-A railway signal lamp, more particularly for giving colour signals in daylight, comprises an electric lamp bulb 19 and a system of two lenses 11, 16 having stepped opposing faces, the light source being so placed with respect to the inner lens as to concentrate the rays falling on that lens on the outer lens, which projects them in a beam of the desired spread. The lenses, the inner one of which is coloured, are detachably secured in recesses at. opposite ends of a holder 9 by retaining members 12, 17 respectively, the holder being secured to the front of the casing 1 by bolts 10. The lamp holder 21 is carried on a porcelain block 22 adjustably secured by bolts 23 to a bracket 24 which is secured to the inner lensretaining members 17 by bolts 25 passing through slots in the latter so as to permit of adjustment of the height of the holder 21. The electric lamps employed are provided with two filaments in parallel, the filaments having such relative proportions that one failing before the other causes a weak signal to be exhibited, thus indicating that replacement of the lamp is necessary. In order to obviate the necessity for re-adjusting the holder 21 in relation to the member 17 when replacing a lamp, the filaments are arranged in a predetermined position in relation to the cap, the lamps being provided with an auxiliary cap where necessary to ensure this condition. The steps on the lower portion of the lens 11 are modified so as to throw a part of the beam downwardly to enable the signal to be seen from close to the signal post and a hood 15, secured to a flange 12a on the outer lens-retaining member 12, is provided on the upper part of the lamp. Specifications 157,070 and 209,856 are referred to.
Patent GB-1029304-A (GB)
Title: Improvements relating to sulphur-containing materials and their production
IPC: B01J21/02
Filed: 1962-06-29
Abstract: A material suitable as a catalyst in hydrocarbon reactions comprises alumina alone or with one or more refractory oxides of elements of Groups II to IV of the Periodic Table according to Mendeleef, the oxide material having on its surface 0.1 to 1 x 10-4 gms. reactive sulphur, i.e. sulphur which reacts with iodine/potassium iodide solution, per sq. m. of surface area.  A metal of Group VIa or Group VIII having hydrogenating activity, e.g. iron, cobalt, nickel, molybdenum, tungsten or platinum may also be present in an amount up to 25% by weight of the total material.  The alumina-containing material, e.g. alumina \sB boria, silica, titania or zirconia is treated with carbon disulphide vapour in a stream of nitrogen and in the absence of reducing and oxidizing agents at 175-600 DEG  C. to obtain the required sulphur adsorption.ALSO:A material suitable as a catalyst or catalyst support in hydrocarbon reactions comprises alumina alone or with one or more refractory oxides of elements of Groups II to IV of the Periodic Table according to Mendeleef the material having on its surface 0.1 to 1 x 10-4 gms reactive sulphur i.e. sulphur which reacts with iodine/potassium iodide solution, per sq. in. of surface area.  A metal of Group VIa or Group VIII having hydrogenating activity e.g. iron, cobalt, nickel, molybdenum, tungsten or platinum may also be present in an amount up to 25% by wt of the total material.  Alumina \sB boria, silica, titania or zirconia is treated with carbon disulphide vapour in a stream of nitrogen in the absence of oxidizing and reducing agents at 175-600 DEG C. to obtain the required sulphur adsorption.
Patent GB-297732-A (GB)
Title: Crank handle safety device for multiple spindle screw machines
IPC: B23Q5/54
Filed: 1928-08-31
Abstract: 297,732. National Acme Co., (Assignees of Simpson, C. W.). Sept. 26, 1927, [Convention date]. Turning.-In means for connecting a handdrive to a periodically power-driven shaft in multiple-spindle screwing-machines, injury to the operator is prevented by means for automatically throwing out the hand-drive clutch when the power clutch is engaged. As applied to the feedshaft 2 of a " Gridley " machine, the handcrank 10 is mounted on a shaft 9, slidable to engage the shaft 2 by a tongue 12 and groove 11. The loose power-driven member 3 of the main friction clutch is slidable to engage the fast member 3<1> by a yoke 4, actuated either by a handlever 8, or, normally, by an arm 5 from a cam on the camshaft (not shown), which is driven at high speed by a worm on the shaft 2. The shaft 2 is driven at slow speed from a separate source of power when the clutch is disengaged, so keeping the camshaft in rotation. A dome 7, secured to the member 3, carries a push-rod 6, which passes through the hollow shaft 2 and is arranged to throw out the clutch 11, 12 just prior to engagement of the clutch 3,3<1>. The Specification as open to inspection under Sect. 91 (3) (a) states also that a spring connection may be provided between the parts 6, 7 to enable the hand-drive to be slightly engaged for cranking the machine backwards if it should stop in such a position that the clutch 3, 3<1> is locked in engagement. This subject-matter does not appear in the Specification as accepted.
Patent GB-207907-A (GB)
Title: Improvements in lock-nuts
IPC: F16B39/36
Filed: 1922-09-18
Abstract: 207,907. Hinton, J. C., and Davies, H. W. Sept. 18, 1922. Locking nuts.-A lock-nut comprises a split screwthreaded conical central body 1 which is accommodated in a conical seating in the nut proper 2. Hexagonal facets are provided on the two parts of the nut to prevent relative rotation. The locking action is produced automatically as the nut is screwed down owing to the central portion 1 being drawn down by the bolt and consequently compressed on to the threads thereof. Means comprising a split-ring, strip of sheet metal, &c. are provided to keep the two parts of the nut together. Reference has been directed by the Comptroller to Specifications 8389/98, 12778/12, 130,910, and 149,489.
Patent GB-1471188-A (GB)
Title: 2-5-nitrofuryl-vinyl-1,3,4-thiadiazole compound a process for its preparation and compositions containing it
IPC: A61K31/41
Filed: 1974-06-07
Abstract: 1471188 A 2 - [2 - (5 - nitro - 2 - furyl)- vinyl)-1,3,4-thiadiazole BASF AG 7 June 1974 [9 June 1973] 25315/74 Heading C2C Novel 2 - methyl - 5 - [2 - (5 - nitro - 2 - furyl)- vinyl) - 1,3,4 - thiadiazole is prepared by condensing 2,5-dimethyl-1,3,4-thiadiazole with 5- nitro-furfuraldehyde or a dialkylated or diacylated derivative thereof in the presence of a catalyst and at elevated temperature. The compound is active against bacteria, protozoa, fungi and yeast and form with a carrier or diluent a pharmaceutical composition.
Patent GB-1207418-A (GB)
Title: Pneumatic reciprocating valve
Inventor: KROFFKE KENNETH KARL
IPC: F15B13/04
Filed: 1968-05-27
Abstract: 1,207,418. Distributing valves. AIRMATIC VALVE lnc. May 27, 1968, No.25351/68. Heading F1M. A pneumatically actuated reciprocating,valve for alternately supplying pressure fluid to opposite ends of a power cylinder 50 or the like comprises a valve body having a bore therein, an inlet port 24 and a pair of work ports 26, 28 communicating with the bore, a valve spool 16 reciprocable in the bore and operable upon reciprocation thereof, alternately to connect each work port with the inlet port and the other work port to exhaust, means connecting the work ports to opposite ends of the power cylinder and passage means so connecting the inlet port to opposite ends of the bore to supply pressure fluid to opposite ends of the valve spool, each passage including a restricted orifice 82 therein. The valve also comprises an exhaust passage 70 communicating with each end of the bore and a normally closed poppet valve 64 in each exhaust passage, pressure responsive means 74 associated with each of the poppet valves and means connecting each work port with one of the pressure responsive means for actuating the latter. The pressure responsive means are operable upon actuation thereof to open the poppet valve associated therewith and exhaust one end of the bore thereby to permit the pressure fluid in the opposite end of the bore to shift the spool towards the one end of the bore, the pressure responsive means being operable to open their respective poppet valves only upon completion of a work stroke by the power cylinder.
Patent GB-921255-A (GB)
Title: Breathing apparatus hose restrainer
Inventor: AUSTIN HARRY WILSON
IPC: A62B9/00
Filed: 1961-07-13
Abstract: 921,255. Respiratory apparatus. MINE SAFETY APPLIANCES CO. July 13, 1961, No. 35401/61. Class 81 (2). [Also in Group XXVIII] A respirator comprises an oxygen mask I connected by an elastic bore 3 to an oxygen supply connector 4, a flexible slack cord 7 of undrawn permanently stretchable material being connected between the mask and connector to permit only a limited amount of stretching of the hose. The cord is made of a polyamide or vinyl compound such as polyvinylidene chloride or nylon and is of such length that it is slack when the hose is unstretched to permit the hose to stretch a normal amount as the wearer moves his head. If the hose is stretched by an abnormal amount, as when the wearer bales out of an aircraft, the cord stretches permanently a limited extent, and so provides a shock absorber for the jerk on the breathing-apparatus, and remains in permanently stretched condition to prevent further abnormal stretching of the hose. The cord is looped at one end around a pin 8 secured across a metal sleeve 9 which is anchored in a tubular portion 2 of the mask by a band 10 securing the hose to the mask. At the other end, the cord is looped around a pin 12 secured across a connector 4 for an oxygen bottle 5.
Patent GB-937765-A (GB)
Title: Improvements in or relating to hydraulic actuating mechanisms
Inventor: ROLLITT JOHN
IPC: F15B15/14
Filed: 1960-07-22
Abstract: 937,765. Hydraulic apparatus. ARMSTRONG PATENTS CO. Ltd. Jan. 16, 1961 [July 22, 1960], No. 25535/60. Class 69 (2). An hydraulic actuator comprises a piston 9 displaceable in a chamber having inlet and outlet ports 8a, 8c leading to opposite sides of the piston, and a controlled passage 8e between the inlet and outlet ports by-passing the piston. The actuator has coaxial cylinders 5, 6 having a space 19 therebetween connected by a port 5a to the right-hand side of the piston and by a passage 8d to the port 8c. The left-hand side of the piston is connected by a passage 8b to the port 8a. The control passage 8e is connected by a passage 8g to the chamber at the left of the piston and intersects the passage 8d and an adjustable screw 11 control the communication between the passages 8d and 8e. The actuator may act as a pump or motor and two similar actuators may be connected together by a pair of pipes between their ports to act as a telemotor system. With the screws of the actuators closing the passages, the movement of one piston will cause a corresponding movement of the other. When a controlled passage is opened by unscrewing the screw, one piston can be moved without moving the other, the fluid by-passing the piston. To fill the actuators, a T-junction is provided in each pipe and with the screws open, fluid is supplied to one pipe and air exhausted from the other while the pistons are reciprocated. Means may be provided connected to a reservoir to compensate for changes in the volume of the fluid as a result of temperature changes.
Patent GB-1182023-A (GB)
Title: Improvements in and relating to nozzles for the mouth of an air duct
IPC: F24F11/04
Filed: 1968-05-28
Abstract: 1,182,023. Ventilating. NORDISK VENTILATOR CO. A/S 28 May, 1968 [1 June, 1967], No. 25571/68. Heading F4V. An outlet nozzle for a rectangular duct 8 comprises two channel-shaped members 2, 3 having sector-shaped end plates and bent up from plate, the members each being pivoted at 6 so that they can be moved towards each other to throttle the air flow and also used to vary the direction of the flow. With member 2 in the position shown and member 3 moved to the dotted position shown at 7, full flow is obtained with maximum change of direction. Two opposite side plates of the duct 8 are extended at 9 to carry a bolt, nut, and washer which are tightened to clamp the sectorshaped end plates in any adjusted position
Patent GB-632763-A (GB)
IPC: G03C1/835
Filed: 1947-09-19
Abstract: 632,763. Photographic plates. GENERAL ANILINE & FILM CORPORATION. Sept. 19, 1947, No. 25600. Convention date, Dec. 10, 1946. [Class 98 (ii)] Hardened photographic gelatin, and gelatin containing photosensitive elements having no after-hardening tendency, is made by mixing therewith, prior to coating on a support, a mixture of glyoxal and 2.4-dihydroxy benzaldehyde, with or without a polyhydroxy benzene, such as resorcinol, phloroglucinol, methyl phloroglucinol, pyrogallol, 1.2.4-trihydroxy benzene or mixtures thereof. It appears that the combination of glyoxal and 2.4-dihydroxy benzaldehyde increases the melting point of a gelatin solution, or layer formed from it, without after-hardening of the layer and without impairing photographic properties such as fog formation, and that this combination is particularly suitable for use as filter, non-curling, antihalation and antiabrasion layers; but when it is desired to improve the photographic properties of the involved gelatin layers, especially those bearing light-sensitive salts, particularly as regards stability with respect to fog, speed and gradation on long storage or incubation, then it is necessary to add the polyhydroxy benzene, of which resorcinol is preferred. It also appears that resorcinol, which has a stabilizing effect of its own, can replace as regards hardening, a part of the more expensive 2.4-dihydroxy benzaldehyde. Amounts of .05 to .5 per cent of glyoxal, .05 to 5 per cent of 2.4-dihydroxy benzaldehyde and .005 to 5 per cent of a polyhydroxy benzene, on the weight of dry gelatin may be used. Example 1 is an antihalation composition of gelatin, glyoxal and 2.4-dihydroxy benzene which, after coating on a glass plate, drying and storing for one month, is resistant to abrasion and reticulation when immersed in processing solutions at temperatures of 45-50‹ C. Examples II to V are photographic gelatinosilver halide emulsions hardened in accordance with the invention and showing similar resistance to hot solutions. Hardening of gelatin as such or in silver halide emulsions by formaldehyde in combination with phenol; by formaldehyde, aldol or glycol aldehyde in conjunction with phenol, resorcinol or resorcylic aldehyde; and by a nitro alcohol together with resorcinol, is described also. Specification 373,829 is referred to.