baber/WOPTO huggingface dataset:
Patent GB-364190-A (GB)
Title: Improvements in instruments for measuring lengths
IPC: G01B3/02
Filed: 1930-10-07
Abstract: 364,190. Measures of length. SECCARELLO, P., 876, Fondamenta dei Dai, Venice, Italy. Oct. 7, 1930, No. 30022. Addition to 353,731. [Classes 106 (i) and 106 (ii).] The measuring stick described in the parent Specification in which a key is depressed to operate a register and an acoustic signal is provided with a single operating key with its edge coinciding with the terminal point of the measuring stick. The registering device is arranged inside the stick at one end and comprises number discs 4<1>, 5<1> loosely mounted on a spindle 6<1> and provided with spring pawls 8<1>, 8<1>a which are adapted to engage a longitudinal groove 7<1> in the spindle 6<1>. The disc 5<1> has fixed to it a toothed wheel 10<1> meshing with a transfer pinion 11<1> by which it is moved forward one step when teeth 12<1> engage the pinion at each revolution of the disc 4<1>. A pawl 28 engages the wheel 27 and retains the number disc in the new position. The key 1<1> slides vertically in a slot provided in the rear portion. of a block 13<1> and when moved down against the influence of a spring 171 engages a peg 1311 on one arm of a double lever 13<111> loosely mounted on the spindle 6<1>. The other arm carries a spring pawl 14<1> engaging a toothed wheel 16<1> which is advanced one tooth at each operation of the key. The signal device comprises a small hammer 20<1> which is moved by the pawl 24 to strike against a vibration spring 23 each time the wheel 16<1> advances a tooth. To zeroize the discs, the spindle 6<1> is turned by using the knob 19<1> and the groove 71 engages the pawls 81, 8<1>a. At the beginning of the rotation of the knob, a cam 25 is caused to raise the pawls 26, 26<1> so that the pawl 24 is disabled and the measuring discs freed. The rear edge 1a of the key registers exactly with the outside face of the end of the stick. In a modification, the counter is located in an extension of the stick, but the edge of the key still registers with the end of the measuring scale.
Patent GB-1394044-A (GB)
Title: Velocity modulation tube with frequency multiplication for the continuous generation of high power outputs
IPC: H01J23/20
Filed: 1973-06-25
Abstract: 1394044 Klystrons THOMSON-CSF 25 June 1973 [27 June 1972] 30161/73 Heading H1D A frequency multiplying klystron includes an electron beam T which is converged from the cathode 101 towards a minimum cross-section p, and at least two gridless resonators, a first one, 111, nearer the cathode resonating at frequency # 1 , and the other, 112, being separated from the first by a drift space, being located adjacent the position of minimum beam cross-section, and resonating at frequency nf 1 , where n is an integer. As shown, the beam is converged by focusing electrode 105 and anode 102, and input and output waveguides 114, 116, respectively, are coupled to the two resonators. In modified arrangements, a third resonator (300, Fig. 4, not shown) tuned to a harmonic lying between f 1  and nf 1  is included between the first and second resonators; resonator 112 may be formed of two identical portions (120, 121, Fig. 6, not shown) coupled by an opening (123) in a common wall (122); and an oscillator is formed by the provision of a third resonator 200, Fig. 3, coupled to resonator 111.
Patent GB-962910-A (GB)
Title: Process for purifying sugar
IPC: C13B20/14
Filed: 1960-09-01
Abstract: <PICT:0962910/C6-C7/1> In purifying a raw, undefecated sugar juice, particularly diffusion juice, the juice, at a minimum temperature of 35  DEG C., is fed, from a tank 2, through an ion-exchange column 4 containing a cation-exchange resin salt comprising exchangeable cations of a metal of Periodic Group IIa, e.g. calcium or magnesium, which take the place of cations present in the raw juice.  A suitable resin is a sulphonated copolymer of divinyl benzene and styrene, converted into a salt by treatment with an aqueous solution of calcium chloride, and then rinsed with water.  The resin removes most of the organic nitrogen compounds from the raw juice. The effluent may be passed into a mixer 7 and heated, by a steam coil 9, to a temperature above 35  DEG C., e.g. 80  DEG C., and mixed with a soluble hydroxide, phosphate, carbonate or bicarbonate of ammonia or an alkali or alkaline earth metal, e.g. sodium hydroxide or calcium hydroxide (milk of lime), introduced through a pipe 10, so that Group IIa metal cations are precipitated.  The precipitate is removed by pumping the contents of the mixer through a filter 17. Effluent juice treated with milk of lime may be carbonated and filtered and, if desired, again carbonated and filtered.  The filtered, purified juices may be evaporated and crystallized to yield first and second grade sugars and molasses.
Patent GB-896102-A (GB)
Title: Improvements in and relating to accelerometers
Inventor: BEDFORD LESLIE HERBERT
IPC: G01P15/18
Filed: 1956-10-03
Abstract: 896,102. Measuring acceleration electrically. ENGLISH ELECTRIC CO. Ltd. Sept. 27, 1957 [Oct. 3, 1956], No.30199/56. Drawings to Specification. Class 40 (1). In an accelerometer, a mass is supported in a rigid framework by several tensioned, vibrating strings or wires. Upon acceleration of the framework, the inertial forces due to the acceleration of the mass, alter the string tensions and the resultant vibration frequency changes are a measure of the acceleration. The strings are maintained in vibration by exciter units and the vibrations are detected at pick-offs which provide electrical signals. It is stated that if the sum of the frequencies is maintained constant, the difference frequency is in a linear relationship with the acceleration. This is effected by a feed-back loop which detects the scan of the frequencies and applies a control to the strings to maintain their sum at a fixed value, by changing the tension in the strings by heating. The strings form single turn secondary windings of transformers and a heating current is induced in them by a toroidal primary wound round a circular magnetic core embracing each wire and energized in correspondence with the sum frequency control signal. Specification 896,101 is referred to.
Patent GB-1302728-A (GB)
IPC: B25C1/04
Filed: 1970-06-22
Abstract: 1302728 Fastener driving tools FASTENER CORP 22 June 1970 [30 June 1969] 30240/70 Heading B4C A fluid actuated fastener driving tool 10 comprises a housing 12, a reservoir 16, e.g. for compressed air, a cylinder 18 having a reciprocable piston 26 bearing driving means 28 for staples 34 &c., a resilient bumper 74, a control valve assembly 22 for governing piston movement, and means for inactivating the control assembly 22 in the event of deterioration of the bumper 74. In inactive condition, air from the reservoir 16 acts around the lower edge of a valve ring 40, being balanced by pressure acting on an upper surface through a passage 48. On actuating the valve 22 the passage 48 is connected to atmosphere, the ring 40 rising under the reservoir pressure out of sealing relationship with an upper end 18a of the cylinder 18, so that pressure enters the cylinder 18 to actuate the piston and the driving means 28. At the end of the stroke, the piston 26 engages the bumper 74, a piston passage 70 aligning with an inlet port 62 of a return chamber 60 so that pressure enters the chamber 60, Fig. 2 (not shown). Release of the valve 22 restores pressure to the passage 48, the ring 40 being urged into sealing relationship with the piston end 18a, while disengagement of a lip 40a of the ring 40 from a resilient valve element 52 connects the upper end of the piston 26 to atmosphere through passages 58. Pressure from the chamber 60 then acts through ports 64 to return the piston to its upper position. In the event of deteri oration of the bumper 74, the end of the piston stroke falls at a lower level, the ports 62 then opening into the cylinder 18 above the level of the piston 26, Fig. 3 (not shown). On releasing the valve 22, pressure in the chamber 60 exhausts to atmosphere directly through the ports 62, so that the piston 26 fails to rise to its upper position.
Patent GB-502603-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/34
Filed: 1938-10-19
Abstract: 502,603. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 19, 1938, No. 30246. Convention date, Oct. 19, 1937. [Class 39 (i)] A lamp 19 is supported within a jacket 10 through its leading-in wires, which are large enouth to conduct heat to maintain the temperature of the ends of the lamp, and is closed at its ends by thin metal members 20 sealed at their edges to the envelope. The jacket has contacts 12, as described in Specification 471,301, [Group XXXVI], and leading-in wires 26, 27 which are clamped or welded in bores in the conductors 16, and hold the lamp terminals 22. The lower terminal 22 may be additionally supported in a well 28 in the jacket. The contacts and terminals are sealed through flexible metal cups 18, 20 into the edges of the hard-glass containers; intermediate glass rings or beads 21 may be used for sealing. The electrodes comprise sintered tungsten particles impregnated with emissive oxide as described in Specification 499,570. A starting electrode is connected to one terminal through a resistance, housed in an insulating casing 30 by means of a metal strip 31, which is embedded in the casing and welded to a lead 16. Mercury, which is completely evaporated during operation to provide an atmosphere of two atmospheres is provided ; starting is facilitated by argon at 6-8 mms. A heat-reflecting material such as platinum paint is provided on the exhausting pip. Nitrogen or air at one atmosphere may be provided in the outer jacket. To maintain the temperature of the lower end of the lamp, the lower end is conical and is coated with platinum paint. Conduction of the heat from the lamp ends may be reduced by undercutting the leads, e.g. as shown at 37, 38. The well 28 may be dispensed with, the lower end of the lamp being registered by a mica star-shaped disc secured to the lower contact 22 by a metal eyelet. The contacts 22 may be replaced by wires and the lower wire may terminate in a spiral housed in the well 28.
Patent GB-1190694-A (GB)
Title: Collapsible Drilling Apparatus for Reactor Vessels.
IPC: B23B41/00
Filed: 1968-06-25
Abstract: 1,190,694. Drilling apparatus. PULLMAN Inc. 25 June, 1968 [14 Aug., 1967], No. 30331/68. Heading B3C. A drilling head 10 for removing sponge iron from a reactor vessel comprises three drilling arms 18 pivotally mounted on an elongate hollow casing 12 so as to be movable between extended operative and retracted inoperative positions by toothed segments 48 engaging respective rows of teeth 66 on a rack 64 displaceable longitudinally of the casing 12 by a push-rod 72. The drilling arms 18 each carry a series of cutters 36 and have forked ends 44 which straddle protuberances 46 on the casing 12 and are rigidly connected to pivot shafts 50 journalled in the protuberances 46. Each toothed segment 48 is splined to the pivot shaft 50 within the respective protuberance 46. A pilot bit 20 mounted on an extension 22 of the easing 12 comprises three fixed arms 24 carrying cutters 30, 32. The drilling head 10 is detachably mounted on an elongated kelly 74 supported by a thrust bearing 157 on a piston 158 vertically displaceable in an hydraulic cylinder 148 sunk in a well below the reactor vessel 142. A drive unit 156 at the upper end of the cylinder 148 rotates the kelly, and a screw jack 159 in the kelly 74 actuates the push-rod 72. In operation, the drilling arms 18 are retracted for drilling a pilot bore 160 upwardly through the material in the vessel 142, and the drilling head is then moved downwardly with the arms 18 extended to bore out the material which is discharged through the pilot bore 160 to a shoot 152 feeding a conveyer 154. Should the drilling arms 18 jam in extended position in the vessel 142, retraction of the arms may be effected through an access opening 144 in the vessel. For this purpose the rows of teeth 66 are eccentrically located on the rack 64 and the rack can be rotated to disengage the teeth 66 from the gear segments 48 by means of a sleeve 94 actuated by releasing, lifting and rotating a closure member 14 at the end of the extension 22. The arms 18 may then be manually retracted and secured by links 118. In Fig. 10 (not shown), the screw jack (159<SP>1</SP>) for actuating the pushrod (72) is positioned in the kelly (74<SP>1</SP>) immediately below the drilling head and driven through shafting (166) and oppositely-connected gears (176, 178, 180) by operating mechanism (168, 170) mounted at spaced points in the wall of the kelly for actuation by a power tool. In Figs. 11, 12 (not shown), the kelly is vertically displaced by an elongate piston (200) mounted in an hydraulic cylinder having two spaced waterlubricated bearings (194) so positioned that at least one bearing engages the piston at every point on its travel.
Patent GB-1392641-A (GB)
Title: Rotational bearings
IPC: F16C33/61
Filed: 1972-06-29
Abstract: 1392641 Bearings WIREGLIDE BEARINGS Ltd 29 June 1973 [29 June 1972] 30375/72 Heading F2A A rolling wire-race bearing comprises two housings provided with confronting surfaces, each surface defining a track extending around the bearing and containing one pair of wires 5 on which the rolling elements 4 run, at least one housing being constituted by two rings 1, 6 secured together by a plurality of screw-threaded fasteners 7, wherein there is provided between the rings adjacent each fastener a shim 8 which is formed from flat sheet material and which comprises two wing portions 8a which act to space the two rings a predetermined distance apart and a central connecting portion 9 linking said wing portions so as to define a slot 8b through which the associated fastener passes, the shim being further provided with an integral tag portion 8c which extends from the margin of the connecting portion remote from the slot, said tag portion projecting from the rings so as to facilitate positioning of the shim and identification of its thickness. The tag portion may be bent out of the plane of the shim after fitting, and may be coloured, stamped, or otherwise marked to indicate the thickness of the spacing portions.
Patent GB-602968-A (GB)
Title: Improvements in or relating to control mechanism for hydraulic or other devices
IPC: F16K31/56
Filed: 1945-11-13
Abstract: 602,968. Toggle linkwork. JONES, P. H. Nov. 13, 1945, No. 30382. [Class 80 (iii)] [Also in Group XXIX] A snap-action toggle mechanism for controlling the reversal of movement of a member, e.g. a hydraulic ram, includes a lever 2 pivoted at 3 and having one end connected by a rod 1 to the ram, and the other end pivoted to a floating link 4. The latter is connected by a tension spring 5 to one arm 6 of a bell-crank lever, the other arm 7 of which is connected to a valve 9. The pivot of the bell-crank lever may be at 3. The valve 9 which controls the supply of pressure fluid to the ram is balanced hydraulically by a piston 12 below which a duct 14 leads to a casing 15 enclosing the linkwork and having a drainage opening 16. In the position shown, the valve 9 is held closed by the spring 5 so that pressure fluid passes through the duct 13 to move the ram. As the latter moves, the rod 1 will turn the lever 2 in an anti-clockwise direction. As soon as the pivot point of the links 2, 4 crosses the line of action of the spring 5, the latter swings the link 4 about the pivot point so that the lower end of the link 4 abuts the right-hand part of the casing 15. The spring thereupon acts on the bell-crank lever to move it clockwise and open the valve 9 rapidly and permit the ram to reverse its stroke under spring action. During such return stroke, the lever 2 is moved clockwise and a similar snap action takes place at the end of the stroke to close the valve 9. The ram mechanism may be applied to a hydraulic pipe pusher for forcing pipes under roadways and the like.
Patent GB-351857-A (GB)
IPC: H02K1/28
Filed: 1930-10-10
Abstract: 351,857. Field-magnet c o r e s and coils. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Oct. 10, 1930, No. 30389. Convention date, Oct. 10, 1929. [Class 35.] A rotating field magnet which has slots in its ends as well as in its circumferential periphery, and in which the shaft does not pass through the core, has the axial bolts for securing the shaft flanges to the magnet embedded in members which also serve to close the transverse slots and these members project axially outwards beyond the transverse teeth. These slot-closing members are preferably partly or wholly nonmagnetic and may be divided, or may have intermediate nonmagnetic members between them and the shaft flanges. In the form shown, the shaft flanges are secured to the magnet body 1 by bolts 10 which are embedded in the member 3 which is secured to the magnet body by means of its projecting dove-tailed portions 4 which close the transverse slots in the ends of the rotor, and by means of a shrunk-on ring 6. Wedges 5 are inserted between the conductors 2 and the projections 4 to obtain further security. In the form shown in Fig. 5, the shrunk-on ring is replaced by a nonmagnetic member 14 between the shaft flange and the member 3, and the axial bolts 10 pass through this and, within the range of the transverse slots, are embedded in the member 3, but outside this range they terminate in the magnet core.
Patent GB-304692-A (GB)
Abstract: 304,692. Bandhauer, F. Jan. 24, 1928, [Convention date]. Indicating-mechanism.-An indicating device for automatic weighers wherein rough and fine indicators for higher and lower orders of weight respectively are positively connected and wherein the fine indicator, during one revolution, runs always over one and the same fixed scale and through a range equivalent to several weight units of higher order, is characterized by the fact that the fine indicator is provided with several points which one after the other pass over the lower-order scale in such manner that every time the rough indicator passes over one weight unit of higher order, one point of the fine indicator simultaneously passes over the lower-order scale, whilst the other points are obscured by a covering plate. As shown, the fine indicator 4 has two points spaced at 180‹ and is actuated by a pinion 5 and segment 1. The rough indicator 2 is carried by the segment. A plate 7 masks the point that is not requisite to the reading.
Patent GB-262591-A (GB)
Title: Improvements relating to word counting mechanism for typewriters
IPC: B41J29/24
Filed: 1925-12-02
Abstract: 262,591. Pilgrim, G. J. M. Dec. 2, 1925. Counting-apparatus.-In word-counting apparatus of the kind in which the space bar operates a counter and is then automatically disconnected therefrom until a character-key is depressed, the space-bar frame a is connected by a slotted link b to a lever c which is connected to the counter e and is provided with a lug f co-operating with a catch-lever g releasable on depressing the character-keys B, preferably by means of a finger i' on the rod i connected to the universal bail C. In depressing the space-bar the counter is operated and the lever c is locked by the catchlever, the space-bar being thereby prevented from again operating the counter until a character-key has been depressed. To suspend counting, the lever c is locked in depressed position by means of a manually operated catch.
Patent GB-637030-A (GB)
Title: Improvements in sensitive photographic elements for colour photography and in methods of forming mixed grain photographic emulsions
IPC: G03C7/396
Filed: 1947-11-18
Abstract: 637,030. Colour photography. KODAK, Ltd. Nov. 18, 1947, No. 30530. Convention date, Dec. 11, 1946. [Class 98 (ii)] A mixed grain emulsion layer consists of grains containing respectively different colour couplers and differently sensitized silver halide, and also containing a water-insoluble salt of a polymeric 6-carbon atom aldehyde acid whereby an interface is retained between said grains and a hydrophilic colloid binder by which the grains are united into a layer. The emulsions may be made by dispersing different colour couplers in differently colour sensitive emulsions, separately mixing these emulsions with alginic acid (polymeric α-mannuronic acid) or oxydized cellulose (polymeric α-glucuronic acid) and dispersing the products in gelatin solution containing a salt of a base capable of forming a water-insoluble salt of these acids. The original silver halide emulsions may be made in the usual way with gelatin or polyvinyl alcohol as binder; algin, the sodium salt of alginic acid may be added and precipitation of insoluble alginate effected by calcium chloride or acetate, aluminium acetate, or watersoluble salts of zirconium, barium, zinc or tin; alternatively the silver halide may be dispersed directly in algin. It is an advantage to provide a single mixed grain layer containing green and red sensitive particles and a separate layer with the blue sensitive particles, but if silver chloride emulsions are used all three components may be coated in one layer. Elements so produced may be exposed and developed, either directly or by reversal, in the usual way. Three examples describe production of redgreen sensitive mixed emulsions incorporating cyan and magenta couplers, and prepared from gelatino-silver halide emulsions using algin and calcium acetate as precipitant for the latter. Specifications 503,752, 524,154, 524,554, 524,555, 524,557, 532,098, 541,589 and 577,804 are referred to. The Specification as open to inspection under Sect. 91 comprises also the use of carboxy methyl cellulose, polymerized α-methyl acrylic acid and α-ethyl acrylic acid in place of algin. This subject-matter does not appear in the Specification as accepted.
Patent GB-1240162-A (GB)
Title: Ignition systems for internal combustion engines
Inventor: TIBBS OSCAR F
IPC: F02P5/145
Filed: 1968-06-26
Abstract: 1,240,162. Ignition systems. O. F. TIBBS. June 26, 1968 [June 26, 1967], No.30603/68. Heading F1B. An ignition system for an internal combustion engine comprises a source of direct current electrical energy 10, circuit means including a shielded transformer 30 for connecting the direct current electrical energy produced by the source into pulsating direct current electrical energy, distributer means 60 including an input rotor 62 and a plurality of output terminals 63 arranged sequentially with respect to the rotor, a plurality of sparkplugs 61 connected to the distributer output terminals and coil means 50 for continuously applying the pulsating direct current electrical energy to the rotor for positions of the rotor with respect to the distributer terminals wherein current is conducted to a spark-plug and for absorbing voltage surges occurring for positions of the rotor with respect to the distributer terminals wherein current is not conducted to a spark-plug.
Patent GB-228825-A (GB)
Title: Bank contact arrangements for telephone systems
IPC: H01H63/02
Filed: 1923-11-05
Abstract: 228,825. Baron, H., (Aldendorff, F.). Nov. 5, 1923. Selectors. - Relates to terminal bank arrangements for rotary switches of large capacitv in which the multiple connections between the banks of different switches are effected by straight bare wires. According to one arrangement, Fig. 1, in which each row of terminals is embedded in a separate block of insulation 37<1>, &c., the soldering lugs 39, 40 of two adjacent rows are bent to the left and right respectively, those 38 of a third row are straight, whilst those 41 of a fourth row are made shorter and are bent to the left so as to lie in the spaces between the straight portions of the lugs 38 - - 40. In a second arrangement, Fig. 3, the soldering lugs 671 - - 673 are formed as lateral projections at the end of narrow strips of different lengths as shown. Specifications 228,831 and 228,824 are referred to.