baber/WOPTO huggingface dataset:
Patent GB-822848-A (GB)
Title: Improvements in or relating to fluorimeters
IPC: G01N21/64
Filed: 1957-03-28
Abstract: 822,848. Photo-electric fluorimeters. EVANS ELECTROSELENIUM Ltd., and COLLINS, G. C. March 25, 1958 [March 28, 1957], No. 10176/57. Class 40 (3). In apparatus for measuring the fluorescence of a liquid exposed to ultra-violet light, the outputs of photo-multipliers 2, 22 receiving fluorescent light from a liquid sample 1 under test and from a standard liquid 23, respectively, are compared by applying them to the whole and to a part of a potentiometer 7 adjustable so as to give a zero reading of a galvanometer 9. Suitable filters 19, 20, 21, 24, 25 are employed. By adjustment of resistances 4, 5, 7, the apparatus is set so as to give zero readings of the galvanometer when the potentiometer slide 10 is set to 0 and 100 respectively with a blank sample 12 and a standard sample 11 in position. The liquids 1, 11, 12 are in containers on a rotary member 26 which carries cams to control switches 28, 31.
Patent GB-1481922-A (GB)
Title: Variable resistance control
IPC: H01C1/12
Filed: 1975-03-12
Abstract: 1481922 Variable resistors CTS CORP 12 March 1975 [2 April 1974] 10312/75 Heading HIS The contactor 40 of a variable resistor comprises a pair of arms 45 at the end of which is provided a first contact 47, a further arm 46 having a second contact 48 which, together with contact 47, slides on resistance element 23, and a third contact 49 which slides on collector 13. The resilient pressure of contact 48 against element 23 is preferably higher than that of contact 47. Contact 48 may be carried by more than one arm. Contactor 40 is constrained to move with a rotatable member (30, Fig. 1, not shown) by means of pivots 42. Resistance element 23 preferably comprises carbon paint on a laminated fibre substrate.
Patent GB-569510-A (GB)
Title: Improvements in or relating to piezoelectric transducers
IPC: H04R17/02
Filed: 1943-06-26
Abstract: 569,510. Telephone transmitters. BRUSH DEVELOPMENT CO. June 26, 1943, No. 10376. Convention date, June 27, 1942. [Class 40 (iv)] A piezo - electric microphone comprises a crystal 5 connected to a diaphragm 3 and carried by a massive mounting disc or ring 1 resiliently supported (e.g. by a rubber annulus 10) within a case 11, the mass of the crystal and disc 1 and the stiffeners of the resilient means being such that the system is resonant to a low audio frequency. The case 11 is enclosed within an outer case 23, the mass of the air moving through the openings 7, 15, 21, 25 and the compliance of the air trapped in the several parts of the transmitter being such as to enhance resonance at the selected low frequency of about 400 c.p.s., and constitute an acoustic low-pass filter with respect to sound entering the case by way of opening 25. In a hearing- aid device, the amplifier, battery, volume control, &c. are enclosed in the case 23 ; the aperture 25 represents the summation of the apertures for the shafts of the various control devices.
Patent GB-237030-A (GB)
Title: A process for transforming oxides of carbon into oxygenated organic compounds
IPC: C07C29/154
Filed: 1924-04-28
Abstract: Catalysts for the production of oxygenated organic compounds, particularly methyl alcohol, by the interaction of oxides of carbon with hydrogen at an elevated temperature and under pressure comprise a mixture of two or more metals, the oxides of which can be reduced to the metal by hydrogen or carbon monoxide at ordinary pressure and at a temperature below 550 DEG  C. Iron, cobalt and nickel are excluded, as also are mixtures of the said two or more metals with metals of the 4th to the 7th periodic group or boron. Suitable metals are copper, silver, lead, zinc and cadmium; additions, such as potassium carbonate, may also be present, and carriers may be employed.  According to the example, a catalytic material is prepared by precipitating with potassium carbonate a solution of ten molecular proportions of copper nitrate to one molecular proportion of zinc nitrate, drying the precipitate, then making it into a paste with sugar and formaldehyde, and finally reducing the dried paste with hydrogen at a temperature of 250-300 DEG  C.  Specification 229,715 is referred to.  Reference has been directed by the Comptroller to Specification 20488/13.ALSO:Catalysts for the production of oxygenated organic compounds, particularly methyl alcohol, by the interaction of oxides of carbon with hydrogen at an elevated temperature and under pressure comprise a mixture of two or more metals, the oxides of which can be reduced to the metal by hydrogen or carbon monoxide at ordinary pressure and at a temperature below 550 DEG  C.  Iron, cobalt and nickel are excluded, as also are mixtures of the said two or more metals with metals of 4th to the 7th periodic group or boron.  Suitable metals are copper, silver, lead, zinc and cadmium; additions, such as potassium carbonate, may also be present, and carriers may be employed.  According to the example, a catalytic material is prepared by precipitating with potassium carbonate a solution of ten molecular proportions of copper nitrate to one molecular proportion of zinc nitrate, drying the precipitate, then making it into a paste with sugar and formaldehyde, and finally reducing the dried paste with hydrogen at a temperature of 250-300 DEG  C.  Over the contact mass maintained at a temperature of 300 DEG C., a mixture of carbon monoxide with excess of hydrogen is passed under a pressure of 150 atmospheres; methyl alcohol is condensed from the gaseous product.  The carbon monoxide may be replaced by carbon dioxide and other gases such as nitrogen may be present. Specification 229,715 is referred to.  Reference has been directed by the Comptroller to Specification 20488/13.
Patent GB-309590-A (GB)
Title: Improvements in or relating to roller suction box apparatus, for paper making and similar machines
IPC: D21F1/50
Filed: 1929-04-04
Abstract: 309,590. Wenzel, M. April 14, 1928, [Convention date]. Suction apparatus.-In suction boxes having interior rollers for supporting the wire cloth, each suction roller b is provided with a separate suction unit comprising a chamber f including packing strips h and end stocks e, bearing saddles c and bearings d. The water is carried off at n and the air at o. Different degrees of suction may be used in each chamber, but openings s, t may be provided to enable the suction chambers to be worked together.
Patent GB-186561-A (GB)
Title: Improvements relating to machines for bending metal bars and the like
IPC: B21D11/12
Filed: 1922-04-12
Abstract: 186,561. Hudson, H. J. H. April 12, 1922. Bars are bent to cranked form suitable for use as reinforcing-members for concrete, by a bell-crank lever provided with two bending formers and dies, a stop being linked to the lever in such a manner that the bent end of the bar remains parallel to its original direction while being displaced laterally. The machine shown has a pair of such pivoted bell-cranks # mounted in frames a which can be secured at required intervals on a bed y, the benders being simultaneously actuated by a linkage t, z operated by hand or power gearing. The benders are pivoted at b and carry interchangeable dies n each of which is adapted for use with two bars of different sizes by inversion on the studs g, h which pass through holes offset from the longitudinal axis of the die. The fixed blocks q may similarly be inverted. The end portions of the bar are maintained parallel to the centre part by pivoted benders k', which are linked both to the benders # and to fixed pivots c in the frames. Anti-friction rollers may be provided at the various contact faces.
Patent GB-274557-A (GB)
Title: Improvements in suspenders for personal wear
IPC: A41F11/16
Filed: 1926-04-21
Abstract: 274,557. Firebrace, W. E. G. April 21, 1926. Curtains, suspending.-A fastening device for use as a suspender comprises a hook-shaped gripping member 1, formed from a relatively broad flat strip, the hook end 3 terminating in a plurality of prongs 2 for engaging articles of clothing or for other purposes. As shown, the gripping member is slotted at 5 for engagement by an elastic garter. The gripping member instead of being slotted may have a hook-shaped end for engaging the garter or ring. In a modification more particularly for use as a curtain hook the ring part may be integral with and in the same plane as the gripping member. A sliding sleeve may be used for masking the prongs of the gripping hook. In the modification shown in section in Fig. 6, means are provided for adjusting the size of the garter, one end of which is attached to the middle bar of the slotted gripping member 1, the other end being wound round the side. of a slotted plate 8, a corresponding plate 7 with a hook 9 being used for passing the garter through as shown for adjustment. Alter adjustment the hook 9 engages the side of the plate 8. The metallic parts may be rubberized.
Patent GB-1466334-A (GB)
Title: Rotary regenerative heat exchange apparatus
IPC: F28D19/04
Filed: 1974-03-08
Abstract: 1466334 Thermal regenerators SVENSKA ROTOR MASKINER AB 8 March 1974 [8 March 1973] 10530/74 Heading F4K A rotary regenerative heat exchanger, of the type comprising a horizontal rotor shaft 10 mounted at opposite ends on bearings 13 and rotated by a motor 16, incorporates a jacking arrangement adapted to raise the rotor shaft 10 relative to its support structure to relieve the load from the bearings so as to facilitate their removal and replacement when necessary. The jacking arrangement comprises a lifting yoke 46 supported on a rectangular sectioned base or pressure plate 56 which slidably fits into a recess 50 in the lower half of each bearing housing 48. The recess 50 is sized to accommodate an inflatable elastomeric bladder (54, Fig. 4) with the top of the bladder resting against the bottom of the pressure plate 56 which in turn supports the yoke 46. The yoke has a concave upper surface 52. When the bladder is inflated by pressure fluid from a source 62 it expands to raise the yoke and hence the horizontal rotor shaft. A pump 64 circulates pressure fluid from the source 62 to the bearing housings at opposite ends of the shaft 10 through supply lines 66A, 66B provided with control valves 68A, 68B. During normal operation of the rotary regenerator the yoke 46 is out of contact with the shaft 10.
Patent GB-707567-A (GB)
Title: Apparatus for the treatment of photographic prints
IPC: G03D3/08
Filed: 1951-05-04
Abstract: 707,567. Photographic processing apparatus. AGFA CAMERA WERK MUNCHEN, May 4, 1951 [July 26, 1950], No. 10554/51. Addition to 702,552. Class 98(2) [Also in Group XXX] Apparatus for processing photographic prints comprises a number of inclined, endless conveyer bands, adapted for accommodation in a single treatment bath container, the bands being so arranged that their lower ends can travel beneath the level of the treatment bath and that the upper end of a band overhangs the lower end of a succeeding band, by which arrangement a print can be lifted from the bath by an overhanging band and caused to fall into it again, and sink through the bath on to the lower end of the succeeding band. As shown, three endless conveyer bands 5, 6, 7 are mounted on a frame 28 which fits in a container 4 for a fixing bath, and also supports a motor 16 driving the upper rollers of the bands by belts and pulleys. A developed print 1 is dropped, by a conveyer band 2, on to the first band 5, by which it is carried out of the fixer and dropped on to band 6. It then passes to band 7, which drops it into a water bath 15. Plates 9, 10, 11 are mounted to prevent the print from slipping off the bands. Specification 702,552 is referred to.
Patent GB-105725-A (GB)
IPC: F16L19/02
Abstract: 105,725. Smith, R. A. Nov. 29, 1916. Tapered spigot-and-socket joints. - A spigot- and-socket joint has a socket with a projection and an extended spigot to secure usual alinement and with the parts forming a metal to metal (or other material) joint protected from injury when separated. As shown in Fig. 1 the spigot 1 is relatively long and its end 5 is recessed to receive a projection 7 formed at the base of the socket. The abutting parts may be inclined or curved and the parts may be forced together by a nut 9 or other suitable means.
Patent GB-1109812-A (GB)
Title: Improvements in and relating to apparatus for manufacturing decorative caps for bottles
Inventor: KUSEL FRIEDRICH WILHELM
IPC: B29C69/00
Filed: 1966-03-10
Abstract: 1,109,812. Bending, shaping and embossing foil. F. W. KUSEL. 10 March, 1966, No. 10584/66. Heading B6J. Aluminium foil bottle caps are manufactured by cutting segment-shaped blanks from a foil strip, gluing the straight edges, and forming into tubes, around mandrels, eight mandrels being carried by a rotating turret past a plurality of operating stations. After placing a segment under a mandrel at station 4, Fig. 1, it is wrapped to form the tube at stations 5 and 6. At station 7 part of the tube projecting beyond the mandrel is pre-folded into frustoconical shape by pivoted tools 13 arranged round the tube. The mandrel is formed with a rounded annular edge 8b and a recess 8c in which is slidable a die 16a actuated by a cam 17. At station 8, a plurality of discs 14a, 14b etc. effect a planetary movement round the mandrel and a movement towards the end of the mandrel, being urged inwardly by springs, so as to shape the foil round the edge 8b. At the same time, a plunger 14 is advanced and the die 16a retracted, to form the top of the cap. After retracting the plunger 14 and the discs, the mandrel moves to station 9 where the die 16a advances flush with the edge 8b, while an embossing die 15 is advanced. The cap is removed at station 10 into a channel 12, and at station 11 the mandrel is heated.
Patent GB-1189753-A (GB)
Title: Improvements relating to Weighing Apparatus.
Inventor: HARRISON WILLIAM
IPC: G01G19/10
Filed: 1968-03-05
Abstract: 1,189,753. Hydraulic jacks. W. HARRISON, A. SYMCOX and H. SYMCOX. 5 March, 1968, No. 10615/68. Heading B8J. [Also in Division G1] In a vehicle, a plurality of hydraulic jacks 5 support a body 1 on a chassis 2 and each jack 5 comprises a pair of pistons 6, 11 which define a pressure chamber 12 connected to a pressure gauge 8. The pistons 6 bear on brackets 7 secured to the body 1 and during a weighing operation fluid under pressure is supplied via pipes 9 to act on the pistons 11 whereby the body is lifted relative to the chassis 2, the consequential pressure in the chambers 12 being indicated by the gauges 8 and being indicative of the weight of the body 1 and its contents. In an alternative embodiment, the jacks are connected to a piston-type totalizing device which acts upon a single pressure gauge. The body 1 may be tiltable on the chassis 2 in which case a fluid-operable tilting ram 4 is provided at one end of the body and at the other end the body is pivotally mounted on supports 3 connected to the chassis, the supports being attached to slide bars (13) (Fig. 3, not shown) which during weighing operations allow the supports 3 to be lifted simultaneously with the body 1 relative to the chassis 2 but which during tipping operations are locked relative to the chassis 2 by a hand wheel 17 and pad 16 arrangement.
Patent GB-985558-A (GB)
Title: Improvements in reel holders
IPC: G03B21/32
Filed: 1961-03-23
Abstract: 985,558. Securing reels on hubs. HONEYWELL Inc. March 23, 1961 [March 28, 1960], No. 10697/61. Heading F2U. [Also in Division G5] One of the keyways 4 in a magnetic tape reel 1 is positioned over a key 13, integral with a hub 11, when a locking ring 2 is positioned with three tabs 3 aligned with the keyways. To lock the reel, the locking ring 2 is raised against the action of a spring 16 and turned, whereupon the tabs 3 press on the reel (Fig. 2, not shown). Sprung plungers 20 engage in a first set of hub dimples 21 for reel loading and unloading (as in Fig. 1) and in a second set (the singledotted circles 21 in Fig. 1) to hold the ring in the reel-locking position.
Patent GB-331851-A (GB)
Title: Improvements in or relating to the manufacture of pressed or moulded articles
IPC: C08H8/00
Filed: 1929-04-08
Abstract: 331,851. Bayon, H. P., (Magnasco, Roggero, & Co.). April 8, 1929. Waterproofing. - Formed cellulosic material, e.g. wood shavings, leaves, woven fabrics, &c. is treated successively with a dilute caustic alkali, e.g. 1 per cent caustic soda at 100‹ C., and an aqueous solution of an oxidizing acid, e.g. a mixture of 5 per cent sulphuric and nitric acids, being washed and dried after each treatment and finally neutralized with ammonia. The material is then impregnated with a solution of a synthetic resin, or with the ingredients of a synthetic resin, heated and pressed, thus producing an insoluble form of the resin in the material while at the same time preserving its original texture. The resin ingredients may be phenol and formaldehyde, successively introduced and followed, after drying, by paradichlorbenzene and hexamethylene tetramine.
Patent GB-531466-A (GB)
Title: Improvements in alloys
IPC: C22C38/44
Filed: 1939-04-06
Abstract: 531,466. Alloys. ETCHELLS, H. April 6, 1939, No. 10794. [Class 82 (i)] An iron alloy contains 25-50 per cent. of nickel, 15-30 per cent. of chromium. 2.5-5 per cent. of molybdenum, 0.1-1.5 per cent. of titanium, and up to 0.3 per cent. of carbon, with or without up to a total of 2 per cent. of any of the following : manganese, silicon, aluminium, magnesium, sulphur, phosphorus, vanadium, uranium, and copper, the proportions of magnesium, sulphur, phosphorus, and uranium not exceeding 0.5 per cent., 0.1 per cent. and 1 per cent. respectively. All or part of the nickel may be replaced by cobalt, and part of the molybdenum by tungsten. Specification 220,710, [Class 82 (i)], is referred to. Reference has been directed by the Comptroller to Specifications 140,507 and 302,249, [both in Class 82 (i)].
Patent GB-802357-A (GB)
Title: Improvements in or relating to use of ketene dimers in the sizing of carbonate-filled paper
IPC: D21H17/17
Filed: 1955-04-14
Abstract: 802,357. Sized, carbonate-filled paper. HERCULES POWDER CO. April 14, 1955 [Aug. 25, 1954], No. 10813/55. Class 96. Alkaline carbonate-filled paper is sized by applying thereto, e.g. by tub, or spray, or in a mineral coating composition, 0.02 to 1.0 per cent of a ketene dimer of the formula [RCH=C=O] 2  where R is an alkyl group of at least 8 C atoms, a cycloalkyl group of at least 6 C atoms, an aryl, aralkyl, or an alkaryl group, e.g. phenyl, benzyl, octyl, decyl, tetradecyl, hexadecyl, octadecyl, eicosyl, docosyl, tetracosyl, #-naphthyl or cyclohexyl ketene dimer, or ketene dimers prepared from montanic, naphthenic, decylenic, dodecylenic, palmitoleic, oleic, ricinoleic, petroselinic, vaccenic, linoleic, linolenic, eleostearic, licanic, parinaric, tariric, gadoleic, arachidonic, cetoleic, erucic, or selacholeic acid or from mixtures of fatty acids as in coconut, babassu, palm kernel, palm, olive, peanut, or rape oil, beef tallow, lard, or whale blubber. An aqueous dimer emulsion may be prepared using a nonionic emulsifier, e.g. polyoxyethylene sorbitan trioleate, and applied with or after a starch and clay coating. Specification 802,356 is referred to. Reference has been directed by the Comptroller to Specification 786,802.
Patent GB-323167-A (GB)
Title: Improvements in single-sheet suction feeders
IPC: B65H3/08
Filed: 1929-04-08
Abstract: 323,167. Ehrig, H., and Keilhauer, U. April 8, 1929 Sheet - separators. - Sheet-feeding apparatus of the kind in which resiliently mounted suction nozzles are employed for lifting sheets singly and depositing them on a conveyer of a printing or like machine is constructed so as be adapted readily to operate on sheets of different thicknesses with nozzles k which are rotatable on the suction tube so that they can be put into operative position selectively. In the first form Fig. 1, two nozzles k, k<1> with apertures n are mounted on spigots r, r<1> attached to a spring- mounted suction tube d and communicating therewith. The nozzles may take the form of metal nozzles or rubber-tipped nozzles. As shown in Fig. 1 both nozzles k, k<1> are in operative position, but either nozzle can be rotated about its spigot to cut off the suction, and the nozzle may be held in an inoperative horizontal position by the engagement of a spring f, Fig. 4, with a flat surface on the nozzle. In a modification, Fig. 6, three radial nozzles k having bores n of different size can be placed separately in communication with a suction tube d, and a yielding pivot adjustment s enables the required nozzle to be held in operative position.
Patent GB-1460164-A (GB)
Title: Device for automatically regulating the flow rate of liquid in an  outlet pipe of a hydraulic retarder
IPC: F16D57/00
Filed: 1974-03-11
Abstract: 1460164 Valves LABAVIA SGE 11 March 1974 [27 March 1973] 10839/74 Heading F2V A device for regulating the flow rate of a liquid in an outlet pipe of a hydraulic retarder in a motor vehicle, comprises a fixed centrallyapertured member 6 and a downstream axiallymovable centrally-apertured member 9. The member 9 is movable away from member 6 against the action of a spring 12 in response to increases in upstream pressure beyond a particular threshold, whereby the effective flow cross-section through the device is increased by the additional flow path established around member 9 via notches 11 therein and via holes 15 in a tubular stop 14. The main flow path through apertures 7, 10 produces an injection effect at holes 15. Adjustment can be effected by replacing the member 9 with one having a different aperture cross-section or by altering the spring force by modifying the number and/or thickness of spacer washers 16.
Patent GB-140244-A (GB)
Title: Improvements in smokers' devices or accessories
IPC: A24F19/14
Filed: 1919-05-01
Abstract: 140,244. Burne, A. S. May 1, 1919. Pocket igniters. - A pair of pivoted spring jaws B, operated by handles A, for extinguishing cigars and cigarettes, may be combined with lighters &c.
Patent GB-745745-A (GB)
Title: Improvements in or relating to drums and like containers
Inventor: GREGGAINS PETER KENNETH WILLIS
IPC: B65D51/16
Filed: 1953-04-21
Abstract: 745,745. Valve accessories. READS, Ltd. May 20, 1954 [April 21, 1953], No. 10980/53. Class 135. [Also in Group XVII] In a container having a valve, either in the container top or in a screw plug closure, for evacuation of the container or admission of an inert gas, the valve consists of a housing 27 having a valve guide 28 the passage through which is controlled by a valve member 30 bedded on a seating 31 and urged by a spring 33 seated on an abutment 34 the upper end of the valve spindle 32 extending upwards through the guide 28. A screen 36 consisting of a pad of wire wool, fine mesh gauze or other material prevents contact of non-gaseous material with the valve.
Patent GB-527401-A (GB)
Title: Improved apparatus for conditioning air by treatment with liquid
IPC: F24F6/16
Filed: 1939-04-11
Abstract: 527,401. Moistening or otherwise treating air with liquids; spray-producers. MAILLE, J., and ROTH, J. April 11, 1939, No. 10991. [Class 55 (ii)] [Also in Group XXIX] In a vertical draught atomizer, the liquid, which may be water or other liquid such as a deodorant, is picked up by a nozzle 14 dipping into the liquid in a container 1 and caused to rotate by a motor 9, the liquid running out on to the upper face of a rotating plate 12. Air drawn in through openings 2 is driven by a turbine pump 15 through openings 7 in an inner cover 6, is impregnated by atomized liquid from the plate 12 which is projected through the openings, and issues through an annular orifice 19 in a cap 18. The ratio between the area of the inlet and outlet openings is between 19 and 2.1 to 1, and the plate 12 is spaced from the plane of the upper edge of the openings a distance equal to one third of their total height. A cup shaped collar 20 prevents lateral draught from opposing.the upward travel of the atomized liquid and air.