baber/WOPTO huggingface dataset:
Patent GB-830930-A (GB)
Title: Optical system for measuring refractive indices
IPC: G01N21/45
Filed: 1956-04-25
Abstract: 830,930. Interferometers. PERKIN-ELMER CORPORATION. April 25, 1956 [April 28, 1955], No. 12633/56. Class 97(1) Apparatus for producing, in a single plane, traces corresponding to the distribution of refractive index and the refractive index gradient in a substance comprises means for passing a light beam through the substance and a second light beam through a standard substance, a phase-splitting device through which the beams then pass and which changes the phase of part of the two beams relative to that of the other part, and an astigmatic lens system imaging the phase-splitting device and the substance in the observation plane whereby a system of interference fringes is obtained giving the required information. As shown light from a source 10, is condensed by lens 11 on to a plurality of sheets 13 whence it passes via slit 15 and lens 16 to slits 20, 21 placed before a Tiselius cell having two compartments, one containing the substance under test and the other a standard substance. The emergent beams pass through the phase splitting device 22 divided by an oblique line 25 into areas 23, 24 differing in optical thickness by half a wave length of the light used. The beams are finally focused upon the surface 28 by spherical lens 26 and cylindrical lens 27.
Patent GB-369048-A (GB)
Title: Improvements in or relating to devices for the conditioning and drying of cereals
IPC: B02B1/00
Filed: 1931-04-29
Abstract: 369,048. Treating cereals. BUHLER, GEB., Uzwil, and GAUDARD, R., 28, Rosengartenstrasse, Zurich, both in Switzerland. April 29, 1931, No. 12665. Convention date, May 14, 1930. [Class 58.] In a grain conditioning or drying column in which grain flows down a column in which conduits 7, 8, open at the bottom, communicate with side passages 4 and 5 alternately, air being forced by a blower 1 through a heater 2 to the passages, flaps 3, 6, are fitted in the passages at the top and the bottom of the column respectively, so that the air may be passed through the column from either side as desired. A return duct 9 conveys the air back to the blower and flaps 10, 11 may be provided on this duct to discharge used. air and admit fresh air respectively. Heating devices for the grain may be fitted in the column.
Patent GB-1122207-A (GB)
Title: A device for depositing a substance on to an electrically conductive workpiece
Inventor: STRINGER JACK ELDON CRAWFORD
IPC: B23K11/00
Filed: 1966-03-22
Abstract: <PICT:1122207/C6-C7/1> A spark discharge apparatus for coating an electrically conductive workpiece with e.g. Nb, Hf, Zr, V, Cr, W, Ti, Zr, Mo, and Ta comprises a spring 22 acting against a solenoid 25 to move a bar 28 of the material to be deposited to and from the workpiece.  A capacitor 29 is included in the circuit to the solenoid.  A rear light indicates when the apparatus is in operation.
Patent GB-1218102-A (GB)
Title: Improvements in medicaments comprising drug/ion-exchange resin compounds
IPC: A61K9/32
Filed: 1968-03-15
Abstract: 1,218,102. Cation exchange resin/drug adsorbates. C. A. CLARK (Philips' Gloeilampenfabrieken N.V.). 15 March, 1968, No. 12704/68. Heading C3P. [Also in Division A5] Resin-drug adsorbates are prepared by slurrying the resin with an aqueous solution of the drug, e.g. a therapeutically active amine. Examples relate to the preparation of " Zeo- Karb 225 SRC9" (Trade Mark)-isoxsuprine HCl and "Zeo-Karb SRC5 "-mebeverine adsorbates both resins being sulphonated polystyrenes cross-linked with divinyl benzene.
Patent GB-873512-A (GB)
Title: Improvements in or relating to transducers
IPC: H04R1/22
Filed: 1957-07-30
Abstract: 873,512. Loud-speakers. BOSE, A. G. July 30, 1957 [Aug. 6, 1956], No. 12711/61. Divided out of 873,511. Drawings to Specification. Class 40 (4). A baffle having a non-spherical surface with edges which fit along three mutually perpendicular surfaces, such as the corner of a room, has loud-speaker diaphragms fitted over apertures in the baffle so as to cover more than half its surface. Specification 873,513 also is referred to.
Patent GB-645095-A (GB)
Title: Improvements in or relating to heating devices for foster-mothers or hovers for chickens
IPC: A01K31/19
Filed: 1948-05-10
Abstract: 645,095. Electric heating. LOWE, F. C. May 10, 1948, No. 12719. [Class 39(iii)] [Also in Group I] A heating device for the lid k<SP>1</SP> of a hover k comprises a frame a backed with a sheet of heat insulating electrically non- conducting material b such as asbestos, the front of the frame being covered with wire netting f. A resistance heating element e is attached to blocks d of insulating material. Asbestos supports g covered with metal strips g' prevent contact of the heating element with the netting f. The heater current is controlled by a thermostat h and a pilot light j is provided. The Provisional Specification describes an embodiment in which perforated zinc may be used in place of wire netting.
Patent GB-953402-A (GB)
Title: Gear finishing machine
IPC: B23F19/06
Filed: 1961-09-05
Abstract: 953,402. Gear finishing machines. NATIONAL BROACH & MACHINE CO. Sept. 5, 1961 [Oct. 31, 1960; Dec. 27, 1960], No. 12812/63. Divided out of 953,401. Headings B3B and B3K. A gear finishing machine comprises a horizontal bed, a table movable horizontally on the bed, rotary gear support means on the table, a column extending upwardly from the bed, a cutter slide vertically movable on the column, a cutter head carried at the underside of the slide angularly adjustable about a vertical axis, rotary tool support means on the head, means for driving one of the rotary support means, a feed-screw and nut between the column and cutter slide, and motor-driven fast and slow transmission means for the feed-screw and nut. The machine is as described in Specification 953,401. In a modification, Figs. 16-19, the gear finishing machine comprises a slide 416, movable by a feed-screw 422 driven by a motor 420, and preferably a crowning table 436, and the work is carried in centres 444, 446, and is driven by the tool T. Work G is loaded into the centres by arms 460 which are pivoted by a fluid actuated piston 459. Tool slide 474 is moved vertically by a feed nut and screw 478, 476, the screw being driven at fast traverse, or slow feeding rates from a shaft 486. Motor 490, Fig. 16, drives a worm 492, worm-wheels 494, 496, and shafts 498, 504. A worm 500 on shaft 498 co-operating with a worm-wheel 502 on shaft 486, and bevel gears 506, 508, co-operate, so that depending on the position of a clutch element 510, the fast or slow feed rate is transmitted to feed-screw 476. The feed is controlled by switches 524-529, and in a modification, Fig. 19, two feed-screws 476a are provided. Balance weights 544 are provided and tool T is rotated by a motor 568, through gears 560, worm gear 556, 557, and gears 572, 576, 578, 580. In a further modification, the crowning table is replaced by a work-support 436a, angularly adjustable by a worm and wheel.
Patent GB-474774-A (GB)
Title: Improvements in or relating to carpet sweepers
IPC: A47L11/33
Filed: 1936-05-07
Abstract: 474,774. Carpet - sweepers. ENTWISLE & KENYON. Ltd., and REDFEARN, J. P. May 7, 1936, No. 12854. [Class 138 (i)] The dustpans B of a carpet-sweeper are connected by a spring D<1> to a link F pivotally connected to a lever E, which is fulcrumed at e<2> to the top of the sweeper case. When the lever is moved from a horizontal to a vertical position the pans are opened to discharge their contents. The link may be in the form of a wire, or may be an extension of the spring D<1>.
Patent GB-179930-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1922-05-06
Abstract: 179,930. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Lomax, C. E.). May 14, 1921, [Convention date]. Relays.-The relays 100, 101, 102 of an automatic telephone selector are mounted close together, with their poles disposed as shown at the foot of Fig. 2, for the purpose of influencing each other's operation by magnetic leakage. For example, the leakage flux from the line relay 100, which becomes saturated at the termination of the impulses, assists the energization of the relay 102. This effect is enhanced by providing the relay 100 with a brass heel piece. Specification 199,042 is referred to.
Patent GB-1261869-A (GB)
Title: Tube mill
IPC: B02C17/10
Filed: 1970-03-18
Abstract: 1,261,869. Comminuting apparatus. WEDAG WESTFALIA DINNENDAHL GROPPEL AG. 18 March, 1970 [3 April, 1969], No. 12922/70. Heading B2A. A tube mill having a hollow grinding drum 1 comprises a grinding roller 4 extending longitudinally, the drum being rotationally mounted on one or more supporting runners 3. The grinding roller is supported for rotation within the drum so that the line of contact between the or each one of the rollers and drum and the line of contact between the drum and associated supporting runner or runners lie in a common plane or respective common planes passing through the central axis of the drum. As described a pair of rollers 4 may be supported by distance pieces 5 and urged against the drum wall by pull rods 6. Alternatively each roller may have its own pair of pull rods 6, Fig. 3. Thus pressure exerted on the drum wall is taken up by the runners.
Patent GB-292118-A (GB)
Title: Improvements in and relating to the purification of furnace and like gases
IPC: B01D47/16
Filed: 1928-05-02
Abstract: 292,118. Radubescu, D. June 14, 1927, [Convention date]. Addition to 289,825. Smoke and fumes, treating with liquids and steam.-Furnace and like gases which are to be purified or coke oven gases which are to be separated from tar in apparatus according to the parent Specification are first passed through a dry centrifugal separator. This may comprise a number of chambers C<1>, C<2> enclosing agitators D<1>, D<2> - - - and having discharge pipes n<1>, n<2> - - The wet separator comprises a conduit F in which a number of radial agitators A<1>, A<2> - - -, which may be recessed or toothed, rotate at high speed, dividing the conduit into successive chambers. Steam injectors v<1>, v<2>- - - and water or other solvent nozzles a<1>, a<2> - - -, directing a liquid stream towards the centre of the discs may be provided in every chamber instead of in alternate chambers as in the parent Specification.
Patent GB-276082-A (GB)
Title: Improvements in or relating to control levers for use in connection with bowden-wire and similar mechanism
IPC: B62M25/04
Filed: 1926-05-21
Abstract: 276,082. Doherty, J., and Doherty, J. May 21, 1926. Levers, locking ; Bowden and like mechanism. -In dual or multiple control devices for Bowden and like mechanism &c., friction clutch.like retaining means for each control lever is' associated with an adjustable nut-ring screwed on to the fulcrum post and bearing against the face of the lever hub either directly or through an interposed non-rotatable washer. A dual control adapted to be fitted to a motor-cycle handle-bar is shown. The levers c, d are rotatably mounted on plain parts of the fulcrum post b and are normally retained in the position in which they are set by frictional engagement respectively with a non-rotatable disc or plate c<6> and the base a of the mounting, the co-engaging surfaces preferably being formed with annular ridges and grooves. The frictional engagement is regulated, in the case of the upper lever c, by a nut-ring c<5> screwed on a theaded part b<1> of the fulcrum post and, in the case of the lower lever, by a nut-ring d<5> screwed on a threaded part b<2> of the post, the upper surface of the member d<5> being recessed to form a seating for the non-rotatable retaining member c'. Non-rotatable washers c<4>, d<4> are preferably interposed to prevent reaction of the levers on the adjusting means. A large headed retaining screw e may be screwed to a dead end in the post b, being accommodated flush or otherwise in the upper adjusting member c<5>, preferably with an interposed non-rotatable washer f allowance being made for adjustment of the rings c<5>, d‹ without detachment of any part of the assembly.
Patent GB-1374516-A (GB)
Title: Gas densitometer
IPC: G01N21/31
Filed: 1972-03-20
Abstract: 1374516 Gas densitometer MITSUBISHI DENKI K K 20 March 1972 [18 March 1971] 12988/72 Heading G1A In a gas densitometer for analysis of mixtures of flue gases, the mixture is put into a container 10 through which (infrared) light from a source 20 whose wave length is determined by a spectrometer 24 (or interference filter) with a control device 44 passes and the light which has passed through the mixture and not been absorbed is received by an optical detector 36 whose electrical signal is fed along with a signal from a further optical detector 34, receiving a reference beam of radiation, to a divider circuit 38 which provides an output signal proportional to their quotient which is fed via a logarithmic operational circuit to one of a plurality of memories 42a, 42b, 42c .... The control device 44 determines which memory stores the "quotient signal" for a particular wavelength and after a number of separate measurements have been made (one for each wavelength, each quotient being directed to a different memory), an analogue computer 48 is able to utilize the quotients to calculate the various densities of the various gases present by solving a set of simultaneous equations (disclosed in the description) and the results of the computation may be displayed and/or recorded on a device 50,
Patent GB-791241-A (GB)
Title: Alkaloid compounds and process of separating them
Filed: 1955-05-04
Abstract: The invention comprises the alkaloid raunormine and its salts, and the extraction thereof from Rauwolfia canesceus by the processes set out below; it also includes raunormic acid (obtained by hydrolysis of raunormine) and its salts.  The alkaloid is obtained from an extract of the plant (e.g. in benzene) by treating it with an aqueous acid having a pH below 6.5 (e.g. orthophosphoric acid at pH 0.6-1.5) and a water-immiscible partially halogenated aliphatic solvent (e.g. chloroform), separating and concentrating the organic phase, dissolving the concentrate in a lower aliphatic alcohol (preferably ethanol) and fractionally crystallizing raunormine and reserpine as free bases or salts.  The concentrate may be dissolved in the mineral quantity of 5N acetic acid, ethanol added to give an alkaloidal content of 20 per cent, hydrochloric acid added at pH below 3.5 to precipitate reserpine hydrochloride and the mother-liquor concentrated to precipitate first reserpine hydrochloride and then raunormine hydrochloride; the latter is shaken with aqueous bicarbonate and chloroform and the chloroform layer washed, dried and evaporated; the raunormine is finally recrystallized from an organic solvent such as ethyl acetate.  The alkaloids may also be separated by a similar process as nitrates instead of hydrochlorides but the reserpine is then preferably crystallized from ethanol before the concentrate is dissolved in acetic acid. The sulphate and oxalate salts of raunormine can be made by direct addition in acetic acid. By alkaline hydrolysis raunormine gives (like reserpine) 3:4:5-trimethoxy-benzoic acid, and a new acid, raunormic acid, analogous to reserpic acid; the hydrochloride of raunormic acid is described.  Graphs are given of the ultra-violet and infra-red spectra of raunormine.  Reference has been directed by the Comptroller to Specification 759,314.
Patent GB-180198-A (GB)
Title: Improvements in connection with automatic gas-operated guns
IPC: F41A9/74
Filed: 1921-05-07
Abstract: 180,198. Beardmore & Co., Ltd., W., and Bremberg, A. May 7, 1921. Cartridge magazines.- A drum magazine A of conical formation is mounted to rotate on a rearwardly inclined pin B so that, whilst the rear portion of the magazine discharges the cartridges parallel to the axis of the gun, the front portion is tilted upwards to increase the space available for the water-jacket D.
Patent GB-987672-A (GB)
Title: Display apparatus
Inventor: HEALEY COLIN JOHN
IPC: G09F19/00
Filed: 1960-04-12
Abstract: 987,672. Producing colour light effects. WILLESDEN PAPER & CANVAS WORKS Ltd. April 7, 1961 [April 12, 1960], No. 13101/60. Heading F4R. [Also in Division G2] Apparatus for projecting changing displays of coloured illumination comprises a viewing surface f, one or more light sources a each of which as shown consists of an undiffused incandescent lamp mounted within a clear transparent enclosure having a plurality of distinct variegated areas but may consist of a cluster of differently coloured pea bulbs, a light deviating system of lenses I or mirrors capable of focusing and a motor arrangement for maintaining movement of the lenses l or mirrors relative to the light source whilst light passes from the source via more than one lens or mirror to the surface f, the arrangement being such that no focused image of any part of the source is formed on the surface f. As shown, turntables j driven by belt k are provided with lenses l. In a modification the cylindrical enclosure of source a may be rotated. In a further form one or more concave mirrors are provided which may reflect the light directly, or through a lens, to the surface f. Moreover, the mirror may be horizontal and contain water on which an ornament floats, or pictures, silhouettes, models or moving objects may be mounted between the light source and viewing surface.
Patent GB-1070354-A (GB)
Title: Improvements in or relating to the production of acrolein and acrylic acid
Inventor: BALL WILLIAM JOHN
IPC: B01J23/847
Filed: 1965-03-27
Abstract: Acrylic acid and acrolein are obtained by passing a gaseous reaction mixture containing propylene and gaseous molecular oxygen at an elevated temperature over an oxide composition containing antimony and vanadium as catalyst in a fixed bed reactor in which the linear velocity of the gaseous reaction mixture is greater than 2 feet per second and at the inlet of which the gas pressure is at least 10 p.s.i.g.  The pelleted oxide composition catalysts, which are heated before use in a molecular oxygen-containing gas within the range 550-1100 DEG  C., may also contain one or more polyvalent metals such as titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, molybdenum, tin, cadmium, tungsten or thorium-preferably iron and tin or copper and tin in addition to the antimony and vanadium.  The preferred atomic ratio of antimony to vanadium lies in the range 1.8:1 to 4:1 while that of vanadium to additional polyvalent metal is within the range 1:0.25 to 1:2.  The reaction feed may contain 1 to 20% by volume of propylene, 1 to 20% by volume of oxygen and an optional 10 to 60% by volume of an inert gaseous diluent such as nitrogen, propane, butane, isobutane, carbon dioxide and/or steam. The preferred reaction temperature lies between 250 DEG  and 550 DEG C. and a contact time calculated from the gas flow at N.T.P. in the range 1/2 to 10 seconds is advantageous.ALSO:Oxide composition catalysts containing antimony and vanadium in the form of their oxides optionally in association with one or more poly-valent metals such as titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, molybdenum, tin, cadmium, tungsten or thorium are obtained by conventional means.  The preferred compositions contain tin and copper or tin and iron in addition to the antimony and vanadium. These catalysts may be calcined at 550-1100 DEG C. before use.
Patent GB-551262-A (GB)
Title: Improvements in steerable mountings for aircraft landing elements
IPC: B64C25/50
Filed: 1941-10-10
Abstract: 551,262. Aircraft undercarriages. PHILLIPS & POWIS AIRCRAFT, Ltd., and MILES, G. H. Oct. 10, 1941, No. 13108. [Class 4] An aircraft landing element mounting comprises a resilently yieldable part which engages a steering connection under landing load and separates therefrom when the mounting is unloaded. The upper part 4 of a shock absorbing strut carries a centring cam 6 co-operating with a fixed cam 5 against which it is pressed by resilient means when the strut is unloaded. When the aircraft is on the ground the cam part 6 is forced upwards to bring notches 9 into engagement with projections 8 on a rotatable sleeve 7 connected to the rudder bar. As shown, the leg 4 and sleeve 7 are mounted in a fixed casing 11, which may be fixed, or hinged for retraction. In the latter case the steering connections may be cables which are slackened when the undercarriage is retracted. A dash-pot may be arranged between the cam 6 and the fixed part of the casing to prevent violent engagement of the cams 5, 6 when the leg is unloaded and to prevent disengagement of the parts 8, 9 during momentary bouncing movements of the undercarriage.
Patent GB-720417-A (GB)
Title: Method of and apparatus for the production of bored metal articles
IPC: B21K1/58
Filed: 1952-05-23
Abstract: 720,417. Forging-dies and punches. GAF. GEN, F. H., [trading as NIERHOFF & GAFGEN]. May 23, 1952 [May 25, 1951], No. 13114/52. Class 83 (4). In the production of bored metal articles such as hollow rivets, semi-hollow rivets, nuts, &c. the blank, which is of rod or wire form, is upset in the bore of a female die, displacement of which is controlled by a power storage load device, the blank after its insertion in the bore being displaced together with the female die over a mandrel projecting into the die, to be pressure moulded thereby to a bored body form dimensioned substantially as in the required article. For making a semi-hollow rivet A, Fig. 1, in a single action press, the die 4 is slidably mounted in a bush 5 secured in the press housing 6 and is loaded by a spring 8. The mandrel 11 is secured at the end 13 to the press housing and is supported by a spring- loaded ejector sleeve 14. The punch 20 is carried by a ram 21 and forces a blank 27 into the die over the mandrel, the spring 8 yielding to bring the mandrel forward relatively to the die. After forming the rivet A, the die 4 returns to its original position, thereby partly stripping the rivet from the mandrel, and ejection is completed by the ejector 14. In a modification for the manufacture of a tubular rivet in a double action press, Fig. 2, the blank is first forced over the mandrel 11 by a spring- loaded punch 28, which yields to allow a fixed mandrel 36 to protrude from the face of the punch and indent the head end of the work. A nut 34 allows adjustment of the protrusion of the mandrel. A finishing punch, Fig. 3 (not shown), carried on the ram 21 in a similar manner to the punch 20 then shapes the head and forces the die 4 further to the rear against the spring 8 so that piercing of the work is completed, the slug of metal removed from the blank being ejected through the punch.
Patent GB-866380-A (GB)
Title: Production of 2-methyl-5-vinyl-pyridine and 2-methyl-5-alpha-chloroethyl-pyridine
Inventor: HALL REGINALD HAROLD
IPC: C07D213/127
Filed: 1958-04-25
Abstract: The invention comprises 2-methyl-5-a -chloroethyl-pyridine and its conversion to 2-methyl- 5-vinyl-pyridine-. 2-methyl- 5-a -chloroethyl-pyridine is produced by reacting 2-methyl5-ethyl-pyridine with chlorine and may be dehydrochlorinated to give 2-methyl-5-vinyl pyridine.  The chlorination step may be carried out at atmospheric or elevated temperatures and/or pressures. A catalyst such as aqueous hydrochloric acid, ferric chloride, aluminium chloride, phosphorus trichloride or iodine may be present. The dehydrochlorination of the chloro-derivative may be carried out by (a) treating with an alkali, e.g. an alcoholic or aqueous solution of potassium or sodium hydroxide; or (b) converting it to 2-methyl-5-a -hydroxyethyl pyridine, for example, by treating with a mixture of potassium acetate and potassium carbonate in aqueous solution and dehydrating the carbinol, for example by heating with activated alumina.