baber/WOPTO huggingface dataset:
Patent GB-406319-A (GB)
Title: Improvements in the manufacture of hydroxylated diphenyls
IPC: C07C37/02
Filed: 1932-08-23
Abstract: Diphenyl halogenated by any suitable process, is treated under pressure with an aqueous solution of caustic alkali at elevated temperature.  According to examples, p-chlorodiphenyl and o-chlorodiphenyl are treated with aqueous caustic alkali as above. The isolation of the products is described, together with tables giving the yields in various circumstances.  The invention is stated to be applicable to m-hydrodiphenyl also, and the halogen-substituted diphenyls in general may be employed.
Patent GB-1471738-A (GB)
Title: Valve apparatus
IPC: B29C45/00
Filed: 1974-05-28
Abstract: 1471738 Injection-moulding; recycling residue GLOBE-UNION Inc 28 May 1974 [31 May 1973] 23640/74 Heading B5A [Also in Division F2] A material processing system, e.g. for use with injection-moulding apparatus comprises storage means, e.g. hopper 86 for a predetermined amount of material, return means, e.g. conduit 24 to recycle residue from the apparatus to the storage means, supply means, e.g. conduit 26 to to supply fresh material from a source thereof to the storage means and a valve 22 to connect the storage means to either the supply means or the return means. The material is fed via ducts 18 or 20, duct 16 to cyclone separator 82 and hopper 86 feeding injection-moulding machine 74 via conduit 88. Residue, e.g. sprues, runners &c is placed in hopper 76 emptying into grinder 78 and receptacle 80 for recycling via duct 24. A vacuum drawn at 84 draws material into separator 82. After a run of machine 74, if the level in hopper 86 has fallen below a predetermined level, switch 92 actuates timer 90 which actuates grinder 78 via switch 98 and valve 22 appropriately via switch 65. After all the residue has passed through valve 22, the valve is switched to provide fresh material, the timer 90 being preset to supply sufficient fresh material for the correct ratio of fresh residual plastics.
Patent GB-424214-A (GB)
Title: Improvements in or relating to vehicle chassis frames
IPC: B62D21/06
Filed: 1933-08-25
Abstract: 424,214. Motor - vehicle frames. PRESSED STEEL CO. OF GREAT BRITAIN, Ltd., Cowley, and SWALLOW, W., 31, Forest Road, Headington, both in Oxford. Aug. 25, 1933, No. 23650. [Class 79 (iv)] A motor-vehicle frame, comprising longitudinal members 11, and transverse members 41, 13 of channel, box or other section, is reinforced by outrigger bracing members 44 lying wholly in the plane of the frame at its forward end and by a cruciform or like known bracing member 16, 17, the forwardly extending limbs 32 of which are substantially in alignment with the rearwardly extending limbs of the bracing members 44, in effect constituting therewith a continuous beam. The outrigger members 44 are of triangular form comprising continuations of the limbs 32 or formed in separate parts connected by welding, riveting, &c., with or without flared ends 35 or gusset plates &c. Various modified arrangements are shown. In one, the forward cross frame member 41 is set back in line with and extended to connect the apices of the triangles; in another the sides 42 of the triangles are in line with and form extensions of the members 41. In the form shown in Fig. 5, the frame members 11 are straight, the sides 66, 67 of the outrigger members being parallel. In a further form, Fig. 14, the frame as a whole comprises top and bottom flanged stampings 71, 72, spot welded to channelled intermediate members 84. As shown in Fig. 15, the outrigger bracing members may include crossed wires 97 tensioned by turnbuckles 94.
Patent GB-1247982-A (GB)
Title: Indicating instrument
IPC: H01J17/49
Filed: 1969-05-09
Abstract: 1,247,982. Glow discharge lamps. SPERRY RAND CORP. 9 May, 1969 [13 May, 1968], No. 23728/69. Heading H1D. A glow discharge device comprises insulating substrates 13, 14 defining a sealed space containing an ionizable gas, a ring of discrete cathode elements and a ring anode supported on facing surfaces of the substrates and means for selectively energizing the elements and anode. An aircraft bearing, heading and distance indicator comprises glass substrates on which the electrodes including additional cathode elements forming alpha-numeric displays, two concentric ring anodes and a central anode are deposited by a silk screen process. Electrode contacts extend both across the edges of the substrates and through the cathode substrate 13, springs 17 forming part of the leads to inner anodes. A block pattern is painted on the front of the anode substrate 14 and a contrast filter 18 with an inscribed pattern is cemented to this substrate. The cathode elements are radial and extend across the two ring anodes, the space between these anodes being masked by a ring of the block pattern. The ring anodes are energized alternately but at a frequency sufficiently rapid to avoid flicker. The cathode comprises layers of NiCr alloy, 50% Ni, 50% Fe and Al vapour deposited.
Patent GB-604127-A (GB)
Title: Improvements in or relating to power-driven files and like tools
IPC: B23D67/00
Filed: 1944-11-30
Abstract: 604,127. Reciprocatory filing - machines. THOMPSON, G. H. Nov. 30, 1944, No. 23908. [Class 83 (iii)] [Also in Group XXIII] In a hand-held filing, honing or like machine, wherein the tool-holder is reciprocated in a housing from a flexible shaft drive, the toolholder 9 carrying a chuck 8 is guided in a sleeve 4 in the housing 2 by a number of angularly-spaced rows of balls 10 which engage the sleeve and holder and are positioned by an apertured cage 11. The latter has a flange 12 formed integral therewith or attached thereto which screws in a bush 13 on the housing so that the cage may be adjusted angularly and locked by a nut 14 to bring the rows of balls on to unworn parts of the sleeve and tool-holder when grooves have been worn therein. A bellows 15 and tubular guard 16 assist in excluding abrasive &c. from the sleeve, and graduations may be provided on the sleeve to indicate its angular setting. The toolholder 9 is reciprocated by a crank-pin 18 engaging a transverse slot in a cross-head 17 thereon, the pin being carried by a disc 19 attached to a bevel gear 21 by a second crankpin 20 which reciprocates a balance weight 26 in opposition to the tool-holder as described in Specification 585,737. The gear 21 is driven from a flexible shaft through a shaft 24 and pinion 23.
Patent GB-659693-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J29/44
Filed: 1949-09-16
Abstract: 659,693. Typewriters. McGLASHAN, A. K. Sept. 16, 1949, No. 23941. Convention date, Jan. 3, 1949. [Class 100 (iv)] A bottom margin indicating-device comprises a smooth plate adapted for attaching to a typewriter so that the upper edge of the sheet being typed co-operates with visual indications 4, 5 or an audible arrangement indicating the distance between the lowermost line of type and the bottom of the sheet. The sheet being typed is fed round the usual typewriter platen and the leading edge falls backwardly on to the plate where it is guided by a raised edge 2 which at its lower end is bent over as at 3 to form a downwardly directed channel to receive the upturned edge 7 of the usual paper guide 6. The indications 4, 5 may be of distinctive colouring and represent respectively the bottom edge of foolscap and quarto sheets; the lines below those marked 4, 5 correspond to line spaces before the bottom edge. In modifications described, a sensitive wire engaged by the leading edge of the sheet may be adapted to operate an audible warning. The plate may be made integral with the usual paper guide 6.
Patent GB-503222-A (GB)
Title: Improvements in light-dividing prism systems for colour photography or the like
IPC: G02B27/14
Filed: 1937-09-02
Abstract: 503,222. Colour photography. TATE, F. R. (Colortone Corporation) Sept. 2, 1937, No. 24039. [Class 97 (i)] In a light-dividing system for colour photography, comprising a compound prism block 11 having two internal semi-reflecting surfaces 17, 18, and laterally-disposed reflecting-prisms 15, 13 receiving the rays reflected by the surfaces 17, 18 respectively, so that the system produces three parallel beams of emergent rays the surfaces 17, 18, and the reflecting surfaces 13a, 15a of the prisms 13, 15, are inclined to the axis of the system at such angles, less than 44‹ 58<1>, that all rays in each convergent cone of light from any point in a field of view whose image is obtained, are incident upon the surfaces 13a, 15a at angles greater than the critical angles of total reflection for the glass used. The inclinations of these surfaces depend on the maximum angle of the said cone of rays and may be as little as 36‹ for rays whose angle of incidence on the surface 10 is as much as 15‹. The lateral rays pass through glass blocks 14, 16 to ensure that all three images are co-planar. Filters 22, 23, 24 are provided on the exit surfaces of the system. To prevent the passage of unwanted rays, the system may be provided with screens 25, 26, 27, 29, 30, 31.
Patent GB-649482-A (GB)
Title: Improvement in or relating to plants for the continuous vulcanization of electric conductors
IPC: B29C48/00
Filed: 1948-09-14
Abstract: 649,482. Vulcanizing-apparatus. PIRELLIGENERAL CABLE WORKS, Ltd. Sept. 14, 1948, No. 24075. Convention date, July 12, 1941. [Class 70] In apparatus for the continuous vulcanization of the rubber covering of electric conductors, a condensing-device is provided at the exit end of the vulcanization chamber wherein the conduction is cooled without any decrease in the external pressure so as to prevent the formation of bubbles due to the expansion of any steam trapped under the covering. Vulcanization is effected by steam under pressure in a chamber 4 and the conductor 1 then passes into a chamber 12 surrounded by a cooling-chamber 10. The chamber 12 is,arranged to slope away from the chamber 4 to prevent the condensed steam reentering the vulcanization chamber.
Patent GB-759617-A (GB)
Title: Improvements relating to beds and the like
IPC: A47C20/04
Filed: 1953-08-31
Abstract: 759,617. Bed-rests. MARRIOTT, H. L. Nov. 30, 1954 [Aug. 31, 1953], No. 24083/53 Class 52(2). The head section 9 of a bed frame is swingable on a pivot bar 16 and urged upwardly by tension springs 11, 12, an oppositely-acting check spring 14 being provided. A retaining chain and catch 19, 18 holds the frame horizontal and the fixed and movable sections of the bottom mesh are connected by springs 17.
Patent GB-462029-A (GB)
Title: Improvements in and relating to tubular gas burners
IPC: F23D14/10
Filed: 1935-08-28
Abstract: 462,029. Gas burners. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G. Aug. 28, 1935, No. 24095. [Class 75 (i)] A tubular gas burner 1 having a longitudinal slot 2 is located within a secondary air duct 3 the top wall of which consists of plates 5 having limbs 5<a> bent over to extend through the slot 2 and provided along the lines of the bends with spaced ports 4 through which secondary air is induced into the flame by the draught set up by the chimney 11 of an outer baking oven or other chamber 10. The limbs 5<a> are held in position by bolts 8 and preferably accommodate between them a strip 6, either crimped or wound with spiral wire spacers, to partition the gap into a plurality of outlet passages 7 congruent with the ports 4. The duct 3 is open at one, or each, end.
Patent GB-1121593-A (GB)
Title: A spot-type disc brake with fixed brake saddle and floating brake cylinder
IPC: F16D55/00
Filed: 1966-05-31
Abstract: 1,121,593. Spot-type disc brakes. ERNST HEINKEL A.G. 31 May, 1966 [4 June, 1965], No. 24216/66. Heading F2E. A spot-type disc brake comprises a fixed inverted U-shaped brake saddle 1 straddling a portion of the brake disc periphery and having an axially extending U-shaped recess provided with bevelled or inclined guide surfaces 10 and 11, a brake arm 15 and cylinder housing 14 carrying brake pads 19, 20 and 22, 24 either side of the disc and supported for axial sliding movement by correspondingly bevelled or inclined guide surfaces 27<SP>1</SP> and 28<SP>1</SP> on said arm, and a leaf spring 34 urging the guide surfaces together. The spring is retained between the arm and a bridging piece 31 which is secured to the saddle. Shim plates 29 and 30 of plastics or metal alloy are provided between the cooperating inclined guide surfaces, said shims providing sufficient resistance so that the brake cylinder housing is reset axially after braking to compensate for brake pad wear. On supply of fluid to the brake cylinder via connection 17, pad 19, 20 is applied directly to the disc, reactive movement of the housing applying the other pad 22, 24. The provision of the guide surfaces, which are preferably inclined at 45 degrees, prevents jamming of arm in the saddle due to brake distortion on severe braking, the brake cylinder housing and arm merely sliding upwardly or downwardly between the guide surfaces on distortion of the saddle. On removal of the bridge piece 31, the brake cylinder housing and arm may be lifted out and new pads fitted, pad 19, 22 being released on removal of the bolt 23 and pad 22, 24 being pulled out the end of the piston wherein it is retained by a castellated spring clip (36), Figs. 5 and 6 (not shown).
Patent GB-270238-A (GB)
Title: Method and means for converting mechanical vibrations into acoustical vibrations
IPC: H04R7/00
Filed: 1926-10-01
Abstract: 270,238. Gramophone Co., Ltd., (Assignees of La Rue, W. D.). May 1, 1926 [Convention date]. Fluid-column transmission between vibratory members; tone-arms; tone-arm joints: cases. - In converting mechanical into acoustic vibrations by transmission as pressure variations through a column of fluid, and conversion into sound, the pressure variations are caused to vibrate a member from. which a large diaphragm sound reproducer is actuated. As applied in reproducing sound, from a record in a cabinet gramophone, the record 15 acts, through a stylus-bar to vibrate a diaphragm in a sound-box G, and these vibrations are transmitted as pressure variations through a column of fluid, preferably air at atmospheric pressure, in a glass or metal pipe T to a similar diaphragm 29 in a casing 40. Vibrations thus imparted to this diaphragm 29 are communicated by a rod 36 to a lever 35 carried by a spring leaf from the casing 40, and a large diaphragm 30 is adjustably connected to an intermediate point of the lever 35 so that the output impedance of this diaphragm can be balanced with the input impedance of the transmitter or generator G. The diaphragm 30 faces an opening in the front of the cabinet 10, which opening may be closed by doors or other sound modulating closure. The diaphragms in the casings G, 40 are preferably stiffened towards the centre by concentric corrugations and flexible at their periphery to vibrate as pistons. The large diaphragm 30 is preferably constructed, as described in Specification 268,723, of conical form with a relatively stiff inner part extending to about half the radius and joined to a pleated outer part 31 terminating in very flexible material 32 by . which it is clamped to the cabinet whilst permitting the central part to move substantially as a piston. The pipe T has a joint 21 permitting vertical movement of the casing G and a joint 24 permitting movement across the record, and bends may be provided in its length to cut out resonant characteristics, and accent desired periodicities. The casing 40 is supported by spiders 38 from blocks 39 on the side of the cabinet. In a table portable machine, the large diaphragm is arranged above the motor board and opposite to an opening in one side of the casing which is extended upwardly.
Patent GB-332092-A (GB)
Title: Improved refractory brick for heat exchange apparatus and method of its manufacture
IPC: C21B9/06
Filed: 1929-08-09
Abstract: 332,092. Chatwin, J., (Vereinigte Stahlwerke Akt.-Ges.). Aug. 9, 1929. Bricks, special shapes of.-Refractory bricks a for lining hot blast stoves and the like are corrugated in two directions at right angles. The mould is provided with corrugated ends and the corrugated striking-off template is drawn over the corrugated ends, thus forming the double corrugations in a single operation.
Patent GB-481134-A (GB)
Title: The manufacture of pigment dyestuffs
IPC: C09B47/22
Filed: 1936-09-07
Abstract: Pigment dyes of the phthalocyanine series are made by heating acylaminophthalonitriles with copper or copper compounds.  The acylaminophthalonitriles may also be produced during the course of the reaction from an acylamino - o - halogenbenzonitrile and cuprous cyanide.  They are fast to light, water and spirit and to pasting from sulphuric acid and exhibit green to green-blue shades.  The products may be sulphonated preferably in presence of the acid which is present in the form of the acyl residue.  In an example, 5-acetylamino-2-bromobenzonitrile (from 2-bromobenzonitrile by nitration, reduction and acetylation), cuprous cyanide and cuprous bromide is heated in presence of quinoline.  The Specification as open to inspection under Sect. 91 comprises the manufacture of dyes by heating acylaminophthalonitriles with metals or metal compounds. Nickel and cobalt and salts thereof are specified.  It is also stated that the acylaminophthalonitriles may be produced in situ from corresponding acylamino compounds containing instead of one or both nitrile groups a group or groups replaceable thereby by interaction with a reagent suitable for effecting this replacement.  The heating of o-dihalogen benzenes which contain acylamino groups in the benzene nuclei with cuprous cyanide is mentioned.  This subject-matter does not appear in the Specification as accepted.
Patent GB-851696-A (GB)
Title: Improvements in or relating to the mounting of loud speakers
IPC: H04R1/02
Filed: 1959-07-16
Abstract: 851,696. Loud-speakers. ROSE, W. H. July 16, 1959, No. 24427/59. Addition to 835,379. Drawings to Specification. Class 40(4). The loud-speaker support described in the parent Specification is modified in that the inner annulus supporting the loud-speaker is suspended on four brackets instead of three and rubber pads are provided to make contact with the ceiling to which the support is adapted to be secured. The dome underlying the support is also modified in that it is made conical at the centre. Specification 804,034 is referred to.
Patent GB-425043-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H01C1/084
Filed: 1933-09-04
Abstract: 425,043. Expanded metal work. EXPANDED METAL CO., Ltd., BOOTON, H., and CLAY, R. A., Burwood House, Caxton Street, London. Sept. 4, 1933, No. 24488. [Class 45] [See also Group XXXVI] Electric resistance elements are made by slitting sheet metal with a plurality of slits arranged end to end in parallel straight lines, and bending the solid material between adjacent lines of slits upwards and downwards well out of the general plane of the sheet, so as to produce, in effect, a series of open meshwork tubes extending across the sheet. The slitted material may be in the form of intermediate expanded metal, with the slits on any line staggered in relation to the slits in adjacent lines, or, as shown in Figs. 1 and 2, the slits may be arranged to leave solid transverse bars B of metal between adjacent tubes. Portions of the sheet may be left blank, as shown at K, Fig. 3, to facilitate mounting the sheet or the provision of tapping terminals. Specifications 369,231 and 404,626, [both in Group XXXVI], are referred to.
Patent GB-1328437-A (GB)
Title: Apparatus for positioning workpieces
IPC: B23Q1/36
Filed: 1971-04-19
Abstract: 1328437 Semi-conductor device manufacture INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [6 April 1970] 24630/71 Heading H1K An apparatus for positioning a workpiece e.g. an integrated circuit wafer comprises first and second resilient members deflectable about respective pivots, their free ends being adjacent and forming a floating pivot for a third resilient member, the resultant movement of which is communicated to the workpiece. Means are provided to independently move at least two of the members, which are biased to eliminate backlash. In the embodiment of Fig. 2 each member consists of a pair of leaf springs 19, 20; 26, 27; 31, 32; with spacing members 23, 29, 33 at their free ends each carrying a cam roller 24, 30, 34, members 17 and 18 having fixed pivots 21, 28 respectively. Stepping motors 36, 37, 38 rotate profiled cams 39, 40, 41 to respectively move members 17, 18 in the Y direction and member 12 in the X direction, angular movement being achieved by differential movement of motors 2, 36, 37. The workpiece 10, which is on a table on spacer 33 can be viewed through a microscope and the motors controlled manually to align markers 14 and 15 on the X axis and marker 16 on the Y axis. Alternatively servomotors operate automatically in response to optically detected deviations of the markers from the axes.
Patent GB-819665-A (GB)
Title: Improvements in or relating to high speed aircraft
Inventor: MOLYNEUX WALTER GUILLAM
IPC: B64C39/04
Filed: 1956-08-13
Abstract: 819,665. Aircraft control surfaces. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 19, 1957, No. 24671/56. Class 4. An aircraft has separate pitch and/or roll control surfaces carried forwardly or rearwardly of the main wing on port and starboard substantially rigid supporting means extending from and rigid with the wing, and secured to the wing inboard of the tips and outboard of 0À4 of the semi-span from the wing root. An aircraft with a fuselage 11, swept back wings 12, a fin 13, and a rudder 14 is shown. Booms 16 formed by forward extensions of the engine assemblies support surfaces 15, on which are movable together about axes parllel to the aircraft OY axis for pitch control, and are movable differentially about those axes for roll control, either by a pilot's control column or an automatic pilot. Each boom is preferably located at between 0À5 and 0À7 of the wing semi-span from the wing root. By these means the speed at which flutter would occur and that at which aileron control reversal would occur are raised. In another embodiment, the wings are swept forward and the surfaces 15 are mounted on rearwardly extending booms. In this case, the speed at which flutter would occur and that at which aero-elastic divergence of the wing would occur are raised.
Patent GB-207294-A (GB)
Title: Improvements in and relating to fastening devices for railway waggon or like sheets
IPC: B61D39/00
Filed: 1922-09-12
Abstract: 207,294. Poulton, P. J. Sept. 12, 1922. Covers, wagon and like. - Tarpaulins are fastened over railway goods wagons by chains C fastened at one end C<1> to the wagon and having a snap-hook C<2> at the other end, the free ends of the chains being passed through eyelets R in the tarpaulin, pulled tight, and secured by engaging the snap-hook with a link in the chain. When not in use the chains are threaded through the attaching rings C<1> of adjacent chains and secured as before. The chains are provided at the sides and ends of the wagon and can be supplemented by additional lengths with a snaphook at one end and a ring at the other. The chains may have enlarged links L which will not pass through the eyelets. A roller may be fitted to the wagon to facilitate stretching the tarpaulin to avoid water collecting in hollows therein.