baber/WOPTO huggingface dataset:
Patent GB-429111-A (GB)
Title: Improvements in miners' safety lamps
IPC: F21L23/00
Filed: 1933-11-29
Abstract: 429,111. Miners' safety lamps. HAILWOOD, E. A., Beacon House, Texas Street, Morley, Leeds. Nov. 29, 1933, No. 33378. [Classes 75 (i) and 75 (iv)] In a miners' safety lamp, an opening is formed in the burner dome through which the flame may be observed for gas testing purposes, and means are provided to prevent the escape of air through the opening. In the form shown in Fig. 1, the reflector or other fitting B of the glass combustion tube G is provided with a long observation slot S which may bear a scale or graduation marks and may be fitted with a lens, the dome D is cut away to form an upwardly inclined bridge D<1>, and the apron A of the fitting acts as a background. To prevent the escape of air, the opening D<1> may be fitted with a lens L, Fig. 4, or a hollow cowl-like member C, Fig. 3, may be pivotally mounted so as to close the opening between the bridge D<1> and the glass G when the latter is assembled in position.
Patent GB-957412-A (GB)
Title: Improvements in or relating to fluid flow control valves
IPC: F16K7/06
Filed: 1959-10-01
Abstract: 957,412. Valves. L. M. C. SEAMARK. Sept. 27, 1960 [Oct. 1, 1959], No. 33379/59. Heading F2V. A fluid-flow control valve comprises a rubber or like resilient sleeve 2, Fig. 6, having a bore of circular cross-section and a central outer surface 2a of hexagonal cross-section. The sleeve is mounted in a two-part housing and the upper and lower surfaces of the hexagonal surface are contacted by members 6 and 7, Fig. 2. The member 6 is connected to an operating spindle 8 through a left-hand screw thread 20 while the member 7 is connected through rods 25 to an upper member 22 mounted on the spindle by a right-handed screw thread 21 whereby the members 6 and 7 move towards or away from each other on rotation of the spindle. The members 6 and 7 are connected by links 17, 18, 19 which provide a full circumferential support for the sleeve during opening and closing of the valve. The outer corners of the sleeve may be nicked as at 27 and an annular metal inset 14 may be provided in the outer flanges of the sleeve.
Patent GB-893293-A (GB)
Title: Improvements in or relating to nuclear reactor moderator structures
IPC: G21C5/04
Filed: 1958-10-21
Abstract: 893,293. Moderator structures. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 21, 1958 [Oct. 22, 1957], No. 33574/58. Class 39(4) A moderator core structure comprises a number of columns formed of superimposed graphite bars arranged such that the change in dimensions in a direction parallel to the core axis due to Wigner growth in certain of the bars is offset by Wigner shrinkage effect in other bars of the column. As shown in Fig. 4 a column comprises a layer 10 of vertical bars separated from the next vertical layer by two layers 11, 12 of horizontal bars. The dimensions of the bars 10, 11, 1, 12 in the vertical direction are arranged such that shrinkage of the bars in a vertical layer 10 is offset by the growth in the layers 11; 12. The horizontal layers may, alternatively, comprise tiles 17, Fig. 9, which have zero Wigner expansion in a direction at right angles to the vertical planes in which the tiles of a given layer abut one another. The tiles and vertical bars may be keyed together by mortise and tenon joints (Fig. 13, not shown). In a further arrangement, Fig. 14, a graphite sleeve 40 forming part of a fuel element and coolant channel extends through tiles 43, 44 and bears on spherical seats 49, 50 formed in the vertical bars 41, 42. The bars and tiles bear on one another to take the vertical load but clearances h are provided at the joint tenons. Specification 822,788 is referred to.
Patent GB-632553-A (GB)
Title: Hinges for windows
IPC: E05D7/085
Filed: 1947-12-20
Abstract: 632,553. Hinges. AKTIEBOLAGET ATVIDABERGS INDUSTRIER. Dec. 20, 1947, No. 33717. Convention date, June 6, 1945. [Class 65 (ii)] A hinge provided with a braking device and adapted for use on windows swingable through approximately 180 degrees around two different horizontal pivotal axes, is characterised in that the braking device comprises a U- shaped spring 9 disposed in a channel 6 on the part 2 of the hinge and between two pins 4 and 5 on the other part 1 of the hinge. The spring presses against the bottom surface of the channel and the lower surface of a plate 7 which bridges the channel, said surfaces being provided with lubricant packed grooves 8. Initial, and braked, turning takes place about an axis A situated at the centre of curvature of the channel. Subsequent, and unbraked, turning takes place about the axis of the pin 4 when the pin 5 leaves the channel and pin 4 abuts the bridge 7. Specification 562,200, [Group X], is referred to.
Patent GB-410535-A (GB)
Title: A new or improved type of cone for use in wireless loudspeakers, telephones, and the like
IPC: H04R7/12
Filed: 1932-11-29
Abstract: 410,535. Gramophones. HARRISON, F., 13, College Road, Braintree, Essex. Nov. 29, 1932, No. 33722. [Class 40 (ii).] A diaphragm comprising a truncated cone 4 secured to one end of a portion 1 having an apical angle of less than 30‹ and an axial depth substantially greater than the diameter of its mouth, has the edge of the portion 4 suspended by a cord from a movable arm 13 attached to the gramophone body 14 whilst the apex of the portion 1 is fitted with an apertured metal block 10 forming a needle holder and connected by a spring or resilient member to the arm 13. According to a modification, the portion 4 is arranged adjacent a gramophone tone arm and horn, the edge of the diaphragm being formed with lugs disposed between rubber rings, the arcuate spaces between the lugs being filled with light fabric or thin leather.
Patent GB-1460049-A (GB)
Title: Catalyst for converting y-butyrolactone into tetrahydrofuran
IPC: B01J37/00
Filed: 1974-07-31
Abstract: 1460049 Tetrahydrofuran DEUTSCHE TEXACO AG 31 July 1974 [3 Aug 1973] 33858/74 Heading C2C [Also in Division B1] Tetrahydrofuran is made by the hydrogenation of γ-butyrolactone in the presence of a catalyst consisting of CoO (12À0-14À5 wt. per cent), CuO (12À5-16 wt. per cent), Cr 2 O 3  (15À5- 19À5 wt. per cent) and alumina at 290-300‹ C. and 150-200 kp./cm.<SP>2</SP>.
Patent GB-1421948-A (GB)
Title: Ambipolar electrophotographic plate palletized conveyor machine
IPC: G03G5/08
Filed: 1973-07-17
Abstract: 1421948 Photo-conductive member XEROX CORP 17 July 1973 [24 July 1972] 33924/73 Heading G2C A photo-conductive member capable of being charged to negative or positive potential, comprises 10-15 wt per cent of photo-conductive particles of CdS x Se y  and 6-14 wt per cent 2,4,7-trinitrofluorenone dispersed in polyvinyl carbazole wherein x is 0À1 to 0À6 and y is 0.9 to 0.4 and x + y = 1. The particles are preferably uniformly dispersed and not greater than 2 microns. The member may be formed on an aluminium sheet or other conductive substrate.
Patent GB-411120-A (GB)
Title: Improvements in or relating to cathode ray or braun tubes
IPC: H01J29/48
Filed: 1932-11-30
Abstract: 411,120. Cathode-ray tubes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Nov. 30, 1932, No. 33933. Convention date, Nov. 30,1931. [Class 39 (i).] In cathode-ray tubes in which the cathode body K is large compared with its emissive area o and is too large to be regarded as a point as regards its effect on the electrostatic lines of force, the concentrating effect of a negativelybiassed concentrating electrode, such as a Wehnelt cylinder H around the cathode K or an apertured flat or curved surface between the cathode K and the anode A, is improved by making the distance b of the area o from the aperture in the concentrating electrode adjacent the anode A greater than the squareroot of the cross-sectional area of the cathode K in a plane through the area o at right angles to the axis of the tube. Preferred dimensions are specified. If the cathode K is cylindrical, the distance b is greater than the diameter of the cathode. As described in Specifications 392,781 and 395,882, the distance b is less than the radius of the cylinder H or of the aperture in the flat concentrating electrode. The cathode may be indirectly heated by heat conduction or radiation or by electron bombardment.
Patent GB-448034-A (GB)
Title: Improvements relating to adjustable seats
IPC: B60N2/34
Filed: 1934-11-26
Abstract: 448,034. Seats. LAFFAN, W., 40, Little Cadogan Place, London. Nov. 26, 1934, No. 33975. [Class 52 (ii)] The plate 1 forming the rear and sides of the back is pivoted at 4 to lugs 5 attached to a foundation plate 6' beneath the seat ; the forward edge of this plate is hinged at 8 to the underframing 9, which is extended rearwardly by horns supporting compression links 11 pivoted at 10, 12 to the horns and the seatback. As the back 2 swings backwards it rises somewhat, the rear part of the seat 7 also rising. The parts are locked in adjusted position by a latch 17c passing through a trunnion block 16 and also through one of the perforations in a bar 17 pivoted to the rear edge of the seat back. This latch may be disengaged by a finger-piece 171 fitted a,s shown.
Patent GB-417288-A (GB)
Title: Improvements in fuses for projectiles
IPC: F42C1/06
Filed: 1933-12-04
Abstract: 417,288. Projectile fuzes. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. Dec. 4, 1933, No. 34033. Convention date, April 28. [Class 9 (i).] Relates to combined direct-action and momentum-action percussion fuzes comprising a direct-action striker b normally held in place by a shear pin b<1> and a momentum plunger c carrying a percussion cap d. According: to the invention, a spring g<1> is cocked by an inertia sleeve g when the shot is fired, and during flight drives the plunger c forward, in dash-pot like manner, until a safety barrier f in front of it is moved by a spring f<1> and centrifugal force into an enlargement a<2> in the fuze body, allowing the striker band the percussion cap d to approach each other on impact. The plunger is normally locked against rotation and longitudirial displacement by a bolt i which is moved out by centrifugal force to permit the operation of the spring g'. The flash from the percussion cap may be transmitted directly through a port j<1> in a bolt j or through a byepass. e<5> and a delay patch e<2> if the port j<1> is shut. This is done by the removal of a pin k, Fig. 6, which allows the bolt to be moved aside by a spring j<2> to a position where the port j<1> is out of line with the flash passage e<4>. Specification 127,622, [Class 9 (i)], is referred to.
Patent GB-442692-A (GB)
Title: Improvements relating to the polishing of dies for use in the extrusion of materials
IPC: B24B5/48
Filed: 1934-11-27
Abstract: 442,692. Polishing extrusion dies. MEAKIN, E. T., 1800, Folsom Street, San Francisco, U.S.A. Nov. 27, 1934, No. 34048. [Class 60] The apertures of an extrusion die 4 are polished by means of endless ropes or bands 19 drawn continuously through the die apertures in the direction in which material will be extruded. The ropes 19 may be mounted in a cabinet 1 on pulleys 11, 17, the lower pulley 11 being driven through belt gearing 14 by an electric motor 12. The upper pulley 17 is carried by a lateral cabinet extension 15 which may be adjusted vertically by means of hand wheel 26. The ropes 19 may be of cotton, flux, hemp rope, seine twine, rubber or insulated copper wire and are preferably of slightly greater diameter than the hole to be polished. The surfaces of the ropes are preferably impregnated with molasses, wax, tar, belt dressing, glue or other receptive matrix material and are fed with abrasive materials such as sand or emery by a container or containers surrounding the ropes just above the points at which they enter the die. Detached abrasive material is drawn off by a fan 31 or is caught by a cone 32 delivering into a container 34. The ends of the ropes may be provided with sockets 40 connected by a chain 41, Fig. 4, or may be connected by a hook-and-eye or belt-lacing coupling. When the die apertures are of irregular shape the ropes may consist of a number of separate filaments arranged side by side or, as shown in Fig. 6, a round core element 43 surrounded by a matrix layer 44.
Patent GB-458457-A (GB)
Title: Improvements in colour filters and the method of making the same
IPC: G03B11/00
Filed: 1935-07-02
Abstract: 458,457. Filters for colour photography. BERNARDI, A., 70, St. Margarets Road, Edgware, Middlesex, and OMNICOLOR, Ltd., 220, Fulham Palace Road, London. July 2, 1935, No. 34057. Divided out of 458,427. [Classes 97 (i) and 98 (ii)] Colour filters are prepared by pouring a solution of gelatin onto a support, allowing it to set, stripping the resulting film, hardening it, e.g. with chrome alum, and finally dipping it in a solution of dye and washing it. The depth of colour is determined by the duration of the immersion in the dye solution. The preparation of colour filters for use in the process disclosed in Specification 458,427, is described. For the blue-green filter, a mixture of toluidine blue with either aesculin or #-naphthol-disulphonic acid is used; for the red filter rhodamine B, auramine, and aesculin ; and for the amber filter either aesculin or #-naphthol disulphonic acid, with pyrazole yellow and fast red D. Specification 233,129, [Class 97 (i)], also is referred to.
Patent GB-861288-A (GB)
Title: Improvements in or relating to tabbed caps for sealing containers
Inventor: FORD GEOFFREY EWART
IPC: B21D51/38
Filed: 1956-11-08
Abstract: 861,288. Cutting tabs in foil. FORDS (FINSBURY) Ltd. Nov. 8,1957 [Nov. 8, 1956], No. 34169/56. Class 31 (1). [Also in Groups XVI, XVII and XXII] A method of manufacturing tabbed capsules for sealing containers from a strip or web of foil or the like, e.g. aluminium foil, comprises shearing tabs from the foil, folding back the tabs, each over part of an area corresponding to a cap blank subsequently to be removed, and passing the strip or web with preformed tabs between a circular punch and die tool set which shears the blank from the foil and forms a skirt or flange in the same operation leaving the tab folded back from the lower edge of the skirt and over the top of the cap. As shown, tabs T are punched out of a strip of foil S and folded back by known means. The strip S is fed between a die ring D and a punch P of known type, which stamp out circular blanks therefrom and form a skirt K on each capsule in the same operation so that the tab T lies flat against the outside of the skirt K and also against the top U of the capsule.
Patent GB-1081390-A (GB)
Title: Process for the production of nuclear-substituted ª‡-amino-anthraquinones
Inventor: BIEN HANS-SAMUEL
IPC: C09B1/20
Filed: 1966-07-29
Abstract: Nuclear-substituted a -unsubstituted-(amino)-anthraquinones are obtained by treating a -amino - anthraquinones substituted in the anthraquinone nucleus and having its a -amino group(s) substituted by a cycloalkyl, aralkyl or tertiary alkyl radical with an acidic agent. The invention also comprises 1-(p-chlorobenzoylamino) - 4 - amino - anthraquinone.  Specified acidic agents include the acids HCl, HBr, H2SO4 and salts thereof, ClSO3H, sulphonic acids or sulphochlorides; readily hydrolysable metal chlorides, and acidic agents which have dehydrogenating or oxidizing properties.  Organic solvents optionally with amines may be present. The starting materials may be prepared in situ from anthraquinones containing in the a -position a substituent which can be exchanged for an amine radical, and the amine radical subsequently split.  The products may contain Cl, Br, OH, NO2, acetylamino, benzoylamino, -NHCOOC2H5 and -COOH groups.  Also, the anthraquinone nucleus may be fused to a heterocyclic ring, and in specified compounds the heterocyclic rings are pyrimidine, pyrimidone, pyrazole, thiazole and quinoline (i.e. phthaloyl-acridone).  Examples are given for the production of the compounds.  They are useful as dyestuff intermediates.
Patent GB-1328299-A (GB)
Title: Process for the manufacture of a screened photographic colour copy which simulates a multi-colour print
IPC: G03F3/10
Filed: 1971-07-21
Abstract: 1328299 Screened photographic colour copy simulating a multi-colour print CIBA-GEIGY A G 21 July 1971 [24 July 1970] 34284/71 Heading G2C A screened (half-tone) photographic colour copy simulating a multi-colour print is produced by exposing a light-sensitive positive-working colour photographic material successively to colour-filtered light through screened positive colour component separation transparencies of an original which correspond to the colours red, blue and green and through, in each exposure, a black and white positive transparency of the original, each exposure of the lightsensitive material being through a filter which corresponds in colour to the red, green or blue light used to produce the screened positive colour component separation transparency used in the exposure, the photographic material after completion of the successive exposures being processed to provide a screened positive directviewing colour copy of the original containing a colour image in magenta, cyan and yellow, the process being characterized in that during at least part of at least one of the exposures the photo-sensitive material is exposed as well to light through at least one of the other screened positive separation component transparencies. The material may be additionally exposed to white light through the black and white positive transparency alone. The photographic material may be a silver dye-bleach material.
Patent GB-482621-A (GB)
Title: Improvements in fluid-pressure reciprocating engines of the revolving tangential cylinder type
IPC: F01B5/00
Filed: 1936-12-15
Abstract: 482,621. Revolving - cylinder engines. BROOKE, B. N. Dec. 15, 1936, No. 34357. [Classes 110 (iii) and 122 (iii)] In fluid-pressure reciprocating engines of the revolving tangential cylinder type the pistons are free within the cylinders and not mechanically connected to the driving part. Upon a shaft H is mounted a rotary block which is bored with two sets of cylinders which are tangential to a radius two-thirds that of the complete block. The block R rotates within a stator casing J having passages A from an inlet point S to valves V which are geared by pinions Q<2> with a pinion Q<1> on the driving- shaft so as to be opened correctly with respect to the passage of the cylinders past them. In addition the stator has passages which form the exhaust outlets E and the openings thereto are similarly controlled by the passage of the block thereover. Each piston is a composite one P<1>, P<2> and arranged so that between the innermost one P<2> and the end of the cylinder C<3> there is an air cushion whose function is to return the piston after the stroke has been completed and to urge forward and expel the exhaust and used steam. There is provided for this air space an automatic valve whereby the air condition is maintained at a desired constant. A diaphragm D in the air space C<2> between the pistons acts as a shock absorber. There is further provided an oil supply system OSQ wherein the centrifugal force in the rotor is utilised to feed the oil past springs in chambers OC. The excess oil which passes through to the exhaust manifold, is allowed to settle by gravity in the sump and is expelled through blow-off cocks.
Patent GB-396760-A (GB)
Title: Improvements in the production of organic amines
IPC: C07C209/18
Filed: 1931-12-11
Abstract: Aliphatic and aromatic amines are obtained by heating together to a high temperature and under pressure an aliphatic or aromatic compound containing alcoholic or a single phenolic hydroxyl with a salt of ammonium or an aliphatic amine.  The products are primary, secondary and tertiary aliphatic, and primary and secondary aromatic amines. According to examples, ammonium chloride reacts, under conditions above described with ethylalcohol to give mono, di- and tri-ethylamine, with m-cresol to give m-toluidine and di-m-tolylamine, with sym-m-xylenol to give sym-m-xylidine and di 3 , 5-xylylamine, and dimethylamine hydrochloride reacts with sym-xylenol to give a mixture of primary and secondary bases.
Patent GB-1012341-A (GB)
Title: Improvements in or relating to light-generating apparatus
Inventor: GIANNINI GABRIAL MARIA
IPC: H05H1/48
Filed: 1962-09-07
Abstract: 1,012,341. Discharge lamps. PLASMADYNE CORPORATION. Sept. 7, 1962, No. 34376/62. Heading H1D.  A pulsed or continuous arc between electrodes 17 is confined and stabilized in a path 32 by a vortical flow of gas which is admitted tangentially to the arc chamber 21 through an opening 31 and is discharged through an axial passage 24 in one or both of the electrodes. The gas may be argon or helium under substantial pressure and may be discharged to the atmosphere or re-circulated through the arc chamber. The insulating block 12 may be of transparent plastic or may be opaque and provided with a window. The electrodes 17 may be cooled, and the chamber 21 may be other than cylindrical, e.g. conical.
Patent GB-1196767-A (GB)
Title: Extruded Magnesium-Base Alloy Article and Process for Producing Same.
Inventor: FOERSTER GEORGE STEPHEN
IPC: C22C1/04
Filed: 1967-07-26
Abstract: 1,196,767. Powder extrusion production of magnesium base alloys. DOW CHEMICAL CO. July 26, 1967 [Aug. 3, 1966], No.34405/67. Headings C7A and C7D. Process for the production of an alloy comprising:- the balance, apart from impurities, being Mg; comprises coating pellets of a Mg-base alloy containing Zr with fine Al particles, compacting the pellets at 260-425 C., heat treating the compact for 1 hour to 4 days at 340-480 C., comminuting the compact, mixing the alloy particles with 10-90% (based on the final alloy) of Mg-base alloy pellets containing at least one of Ca, R. E. and Th and preferably containing Zr and extruding the mixture at at least 260C. to form a coherent body. The final body is characterized by a sound heterogeneous microstructure consisting 10-90% of a first Mg-Al-Zr alloy phase with an average grain diameter less than 5Á and a second Mg alloy, containing one or more of Ca, R.E. and Th, discontinuous phase intimately dispersed therewith. Also it has high compression yield strength and resistance to creep extension. In an alternative embodiment the Al powder coated particles may be mixed with the Ca, R. E. or Th containing alloy particles, the mixture compacted at 260- 425C. , heat treated at 340-480 C., and then extruded at 260-425 C., with a reduction ratio of at least 5:1.
Patent GB-734478-A (GB)
Title: Improvements in and relating to railway track packing machines
IPC: E01B27/16
Filed: 1953-12-10
Abstract: 734,478. Railway track packing machine. MEISSNER, W. Dec. 10, 1953 [Dec. 10, 1952], No. 34490/53. Class 104 (2). A railway rail track packing machine has the packing tools moved during operation in a direction oblique to the rail and with the plates thereof arranged end-on to the rail. The packing tools 8, 9 may be moved in rectilinear paths 3, Fig. 3, oblique to the rail 1 or in a curved path, Fig. 1 (not shown), or in a path part parallel and part at an angle to the rail 1, Fig. 2 (not shown). The working faces of the packing tools 8, 9 may be concave or flat and arranged at an angle to the path of movement 3. The tool stems are mounted in holders 11 which pivot about a pin 12 to effect a tongs-like movement of the tools towards or away from one another longitudinally of the rail by screwthreads 13 driven by a worm 14. The tools are also vibrated by the mechanism 17. The holders 11 are moved towards or away from the rail 1 by screw-threaded spindles 15 arranged at the pivot point of the holders 11. A common drive may be used to operate the spindles 15 or as shown in Fig. 5 a double drive 16. When a double drive 16 is used the path of movement of the holders 11 on one side of the rail 1 may differ from that of the holders 11 on the other side of the rail 1. The mechanism may be operated hydraulically. The tools may also be reciprocated laterally to the rail.