baber/WOPTO huggingface dataset:
Patent GB-556975-A (GB)
Title: Improvements in or relating to apparatus for measuring or indicating the roughness or undulations of a surface
IPC: G01B7/34
Filed: 1942-04-27
Abstract: 556,975. Measuring surface roughness. KAPELLA, Ltd., and REASON, R. E. April 27, 1942, No. 5626. [Class 40 (i)] [Also in Group XXXIX] A stylus-controlled differential electromagnetic detector for measuring and indicating surface roughness comprises a non-magnetic frame A, a magnetic core of E-shaped laminations B1, B2 and two coils on bobbins C on the outer limbs of the core, the laminations being clamped in the frame by securing the bobbins to the frame A. The frame is T-shaped, the bar being formed with a groove A2 and the leg A1 with a slot to accommodate the core. The bobbins have a thick flange C1 cut away at C2 to embrace the core with a rubber pad D interposed, and are secured to the frame by screws C3 one on each side of the core, the pressure, being distributed over the laminations by the pads D. The frame groove A2 is slightly deeper at A3 in the middle so that the core is clamped against the ends only. The laminations are clamped in the leg of the frame by one or more grub screws A4 engaging the centre line of the middle limb of the core or by a central grub screw on a clamping member having its ends abutting symmetrically against the core. The stylus G is carried by an armature F pivoted on a knife edge E secured by screws E1 in slots in the central limb of the core and leg of the frame, and positioned vertically by screws E2. The armature is held against the knife edge by springs F2 anchored to a central cross bar on the armature and to the pick-up head H to which the frame is connected. The pick-up head and measuring circuits may be arranged as described in Specifications 539,271, 589,272, 539,273 and 539,274, the circuits being suitably modified for two-coil control, or a third coil on the centre limb as described in the aforesaid Specification may be used.
Patent GB-254356-A (GB)
Title: Improvements in direction indicators for road vehicles
IPC: B60Q1/34
Filed: 1925-12-02
Abstract: 254,356. Brown, O. G. Dec. 2, 1925. Road-traffic signals on vehicles; semaphore and pointer signals. - In a direction-indicator a hand 1 or indicating member is mounted on a rotatable spindle 3 so that the hand can rotate with the spindle and move in a vertical plane about a hinge 21, the hand being moved in the vertical plane by a Bowden cable 19 or like flexible control against the force of a spring 18. The spindle 3 is provided with a crank arm 5, Fig. 5, which is connected by a link 8 to a crank arm 6 on a parallel spindle 7 which is provided with a control lever 9 to which an operating cable 10 is attached. The spindles 3, 7 are housed in a casing 11 which contains a lamp 22, perforations 12 being made in the casing so that the light is thrown on to a reflector 13 to illuminate the hand. The operating lever for the cable 10 works over a quadrant, the notches of which may be provided with electric contacts so that the lamp is illuminated after each movement of the indicator.
Patent GB-545458-A (GB)
Title: Improvements relating to the production of magnesium from magnesium bearing materials
IPC: C22B26/22
Filed: 1941-05-02
Abstract: 545,458. Magnesium. INTERNATIONAL ALLOYS, Ltd., and PRYTHERCH, W. E. May 2, 1941, No. 5711. [Class 82 (i)] The residue consisting mainly of alumina, iron, and silicon, resulting from the reduction of magnesiferous material by means of aluminiumiron-silicon is treated in an arc furnace with coal or coke and fluxes or other additions to regenerate aluminium-iron-silicon for reuse as reducing agent. Losses of aluminium, may be made up by the addition of bauxite, clay, aluminium scrap or other aluminous material, or by aluminium oxide obtained from bauxite or clay by the process described in Specification 545,000, [Group III]. Magnesium oxide to be reduced may be briquetted with the reducing agent and a binder and if desired a material such as calcium fluoride and baked for 3 hours at 250-500‹C., distillation being effected at 1100- 1250‹C., under a pressure of preferably less than 5 mm. of mercury.
Patent GB-825300-A (GB)
Title: Impregnated carbon seals and the utilisation thereof
Inventor: HUNTER DONALD NOEL
IPC: C04B41/83
Filed: 1957-02-21
Abstract: <PICT:0825300/III/1> <PICT:0825300/III/2> A method of rendering a carbon sealing ring substantially impervious to fluid comprises impregnating the ring with a vinyl-cyclic amine and then polymerizing the impregnating material in situ by application of heat.  A specified impregnating material is N-vinyl carbazole which is cured by heat to form polyvinyl carbazole.  As shown (Fig. 1), a carbon ring 1 is placed on a block of solid vinyl carbazole monomer 2 in an air-tight impregnation chamber 3, the air is removed by vacuum pump 7 and after a period the water in water jacket 4 is heated to melt the vinyl carbazole whereupon the carbon ring sinks into the liquid as shown in Fig. 2.  The vacuum is then released and nitrogen from bottle 8 is pumped into chamber 3 by high-pressure pump 9; the pressure and heat being maintained for a period. Subsequently the carbon body 1 is removed from chamber 3 and heated in a stove to polymerize fully the vinyl carbazole.
Patent GB-478917-A (GB)
Title: Apparatus for opening and conveying loose wet fibrous material
IPC: D01G9/00
Filed: 1937-02-27
Abstract: 478,917. Endless - - belt elevators. MASCHINENFABRIK F. HAAS GES. Feb. 27, 1937, No. 5935. Convention date, March 28, 1936. [Class 78 (i)] [Also in Group IX] In apparatus for opening and conveying loose wet fibrous material, the lifting lattice B, Figs. 2 and 3, is arranged with a substantially vertical stretch over the depth of the feed trough F and an inclined upper stretch, a stripper A<1> being provided near the start of the inclined stretch. A second stripper A<2> may also be provided while a division S may be arranged in the trough F to prevent the matting of the fibres into rolls or balls.
Patent GB-812806-A (GB)
Title: Improvements in engine starter cartridges
Inventor: RHODES TOM BLACAS
IPC: F02C7/272
Filed: 1957-02-22
Abstract: 812,806. Engine-starter cartridges. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 27, 1957 [Feb. 22, 1957], No. 6129/57. Class 9(1) In a cartridge case 3 having an end closure as describeol in Specification 811,245 the bag 17 containing an ignition composition is replaced by an apertured member 1 fitted in the base of the case and surrounding- the primer 5. A diaphragm 8 is stuck to The member 1 above the primer and supports the ignition composition 7, which is covered by a diaphragm 9. Upstanding projections 10 support the charge 12. The member 1 may be of metal, wood or plastic resin compositions, but polyethylene is preferred. The diaphragms are made from natural or synthetic textile material that is substantially consumed on combustion and when the member 1 is made of thermoplastic resin the diaphragms may be secured in position by the application of heat and pressure. Thin films of waterproofing material such as polythene may be applied to the diaphragms 8, 9.
Patent GB-138201-A (GB)
Title: Improvements in or relating to lavatory basins
IPC: A47K1/04
Filed: 1919-03-12
Abstract: 138,201. Dyer, E. P. March 12, 1919. Lavatory basins.-Foot-rests C are moulded integral with a hollow support B for a hairdresser's basin A. The basin may be made with lateral slabs E and may have a splash-board F at the back.
Patent GB-1223101-A (GB)
Title: Improvements in sight-taking periscopes
Inventor: RITCHIE DAVID SCARTH
IPC: G02B23/08
Filed: 1965-02-13
Abstract: 1,223,101 Surveying apparatus. BARR & STROUD Ltd. Jan.24, 1966 [Feb.13, 1965], No.6328/65. Heading G1F. A sight-taking periscope includes a head in which are mounted first and second elevating prisms, means for independently rotating these prisms to view upwardly from the horizontal, an angular scale of altitude rotatable with one prism, and a scale reading optical system having a head rotatable with the other prism, whereby a measure of the angle between the lines of sight of the prisms is provided. In the embodiment described, one prism is of sufficient size to provide the maximum useful aperture (say 80mm) which the observer can accept taking into consideration the magnification of the viewing system (say X 20) and has sufficient light gathering power to enable first magnitude stars to be seen well into daylight and the horizon to be seen well into darkness. The second prism, due to space limitations in the head of the periscope, is considerably smaller and provides a pupil of, say 25mm, this however being sufficient to enable stars to be seen at night and the horizon in daytime. The role of the two prisms, in respect of the object viewed, is thus changed as between daylight and darkness. The angular scale and the scale reading optical system are such as to enable readings to be taken across a diameter of the scale, the images of both sides of the scale being combined in the head of the scale reading optical system. This system includes a dove prism rotatable upon rotation of the corresponding prism and serving to stabilize the combined scale image against rotation to facilitate reading. In use the prisms are sighted on the horizon and a star or other bright body and the scale reading is then an accurate measure of the elevation of the bright body. For purposes of dip and refraction error compensation, one prism is capable of rotation about its axis to the extent of viewing horizontally in the opposite direction to the other prism. By this means, the angle subtended at the instrument head, by diametrically opposite points on the horizon, can be measured and the amount by which this angle exceeds 180 degrees is a measure of the combined dip and refraction angle.
Patent GB-1058131-A (GB)
Title: Dispensing device
Inventor: STEER LESLIE
IPC: A47K10/42
Filed: 1963-02-15
Abstract: 1,058,131. Folded sheet dispensers. INVERESK PAPER PRODUCTS Ltd. Dec. 20, 1963 [Feb. 15, 1963], No. 6345/63. Heading B8P. A dispenser for interleaved paper towels has a bottom opening 21 (Fig. 2) with a central widened aperture 9, 15 through which the lowermost towel of a fresh supply may be easily gripped. The opening 21 is formed by a gap between depending flanges 8, 14 (Fig. 1) on the lower back wall 6 of a back aluminium plate 1 and lower front wall 7 riveted to the back plate 1 by rivets extending through holes 18, 20. The lower back wall 6 is riveted at 11 (Fig. 2) to triangular extensions 10 of the side walls 4 (Fig. 1). Flanges 5 hold the towels in position and visual apertures 31 indicate when the supply needs replenishing. Embossed cruciform shaped apertures 3 on the back plate 1 enable the receptacle to be nailed or screwed in position. The receptacle may have a front hinged cover 23 hinged on rivets extending through elongated holes 28, 30 and with a back lip extending over the top of the back plate 1 in closed position.
Patent GB-589005-A (GB)
Title: Improvements in or relating to setting pointers for measuring instruments
IPC: G01L19/08
Filed: 1945-03-14
Abstract: 589,005. Aneroid barometers ; indicating-apparatus. PULLARS ELECTRIC CO. (BRIGHTON), Ltd., BROWN, J. E., and BOWEN, T. March 14, 1945, No. 6403. [Classes 106 (ii) and 106 (iv)] A setting pointer 15 for a measuring instrument, having a boss 13, recessed or flat, with slots 12, 14, as shown in Fig. 3, is operated as shown in Fig. 1, by a knob 1, connected thereto by a tongue 4. The tongue engages a slot 9 in a washer 7, fixed in the knob, and retains the pointer and knob in contact with a glass, panel 10 by means of a dove-tailed part 12, and bent ends 4 co-operating respectively with the slot 12 and a helical spring 6, which ' ears on top of the washer 7. The device may be dismantled by pulling the dove-tailed part down and turning ,the tongue into alignment with the slot 14, when the tongue can be disengaged from the pointer.
Patent GB-682533-A (GB)
Title: Improvements in and relating to paring or stripping machines for coal and other minerals
IPC: E21C27/34
Filed: 1950-03-14
Abstract: 682,533. Mineral planers. FLOTTMANN, F. H. March 14, 1950 [April 16, 1949], No. 6424/50. Class 68(i) In a planer for stripping mineral from a face, the wedge or trapezium-shaped cutter body has formed in the upper surfaces thereof and laterally outwards of and to the rear of the vertical shearing edge 3 of the body, a slot 9 in which is clamped one or more vertically directed kirving knives 10, the cutting edges of which are parallel to the shearing edge of the body, to break away material from the seam above the cutter body, the slot being at an angle to the plane of the face. The shape of each knife is such that the roof cuttings are forced outwards to the side of the planer. To permit the planer to cut in either direction, the knives are arranged in pairs so that one is the mirror image of the other.
Patent GB-287083-A (GB)
Title: Improvements in method and means for feeding plastic material to moulds in the manufacture of pottery
IPC: B28B5/02
Filed: 1928-03-01
Abstract: 287,083. Miller, W. J. March 14, 1927, [Convention date]. Extrusion machines; flower-pot and like machines; lubricating.-Plastic material is forced in measured charges by a reciprocating plunger through a chambered profile into or on to a mould. As shown in Fig. 1, containers 5, furnished with feed shafts 13 equipped with blades 18, 30, 31, are fitted with extensions 58 forming profiles. Plungers 55, working in chambers 59, force the material through openings 65 and excess material returns to the containers through openings 66 leading to chambers 29 fitted with-spring-returned valves. Each plunger is adjustably carried by a lever 38 adapted to be raised by a cam 34 on a shaft 26 and depressed by a spring 39, the descent being regulated by a stop screw 57. The moulds A are carried by spindles 83 adapted to be raised by forks 94 carried by rods 92 connected to levers 89 having rollers 88 engaging cams 87 on shafts 81, 81<a>, and to be rotated through friction gear 84, 85. When the spindles are lowered, the rotation is stopped by brake members 100 raised by levers 95 operated through rods 97 by cams 98e on the shafts 81. The moulds are supported by trays 103 connected by trunnions 104 to a chain conveyer 101 and are advanced intermittingly by a pawl 110 on a lever 106 operated by a cam 105 on the shaft 81. Motion is imparted to the shafts 26 from the shaft 81 through chains 138, 139 and the shafts 26 drive the shafts 13 through bevel gearing 23, 20. The charge of material is lubricated by water supplied by a pipe 119 fitted with a hand valve 120 and supplied through a valve controlled by a cam on the shaft 26, or by a pump 116, Fig. 14, having a piston 115a operated by a cam on the shaft 26 against the action of a spring 117, the stroke being regulated by a screwed sleeve 124. Instead of returning direct to the container 5, excess material may pass to a receptacle 132, Fig. 9, via a chamber 127<a> and valve 71<a> and be reconditioned before its return to the container. The chamber 132 is furnished with a baffle 133 and is connected at 137 to vacuum. Fig. 4 shows a modification including a deep profile. To prevent spreading, the material is retained by a guard 58a. Fig. 17 shows a modified machine in which a horizontally-disposed container is pivotally supported at 141 and is movable, with the profile 58, by a handle 142, the extent of movement being limited by stops 149,.150 on a rod 147. The feed shaft 13 is rotatable continuously by a motor 169 or intermittingly by a pair of oppositely-disposed ratchetbars 162. The plunger is operated by a lever 155 and its movement is limited by a screw 57<a>. The brake disc 100 is normally engaged with the disc 84 by a rod 174 forced upwardly by a spring 176 and adapted to be depressed by a pedal lever 171. Specifications 279,503, 280,882, and 284,692, [all in Class 87 (i), Bricks &c.], are referred to.
Patent GB-586914-A (GB)
Title: Improved process for the production of hydrogen
IPC: C01B3/06
Filed: 1943-04-22
Abstract: <PICT:0586914/III/1> Hydrogen is obtained by bringing steam at superatmospheric pressure, e.g., 5-100 atmospheres and elevated temperature into contact with ferrous oxide, the ferrous-ferric oxide resulting from the reaction being subsequently heated in a reducing gas, particularly water-gas to recover the ferrous oxide for re-use. In a preferred continuous operation employing the solid reactants in suspension in the gas phase, superheated steam from a heater 21 is passed into a hydrogen generator 22 being joined by a stream of finely-divided "fluidized" ferrous oxide passing through a pipe 23. The hydrogen forming reaction takes place in a tube 24.  The reduction in velocity arising when the mixture passes the upper end of the tube 24 allows the solid now mainly ferroso-ferric oxide to settle in the space between 22 and 24, remaining solids in the hydrogen being separated by means of cyclone separators 25 and the hydrogen passing through a cooler 27 and discharge pipe 28.  Some further steam may be introduced at 29a to utilise the oxide fully before it passes out by a pipe 29.  The solid then flows by means of a pipe 30 and heater 31 into a regenerator 32 in admixture with reducing gas from a pipe 37.  The regenerator 32 is constructed and operates in the same way as the generator 22, spent reducing gases passing out through pipe 35, supplementary reducing gas being if necessary introduced through 36a and the regenerated ferrous oxide passing through pipes 36 and 38 to the pipe 23 which feeds the generator 22.  The circulation of fluidized solid between the stages may be assisted by the injection of reducing gas through pipes 39, 40 and of steam through pipes 41 and 42.  The hydrogen generation may take place at a temperature of 500-700 DEG C. the regeneration temperature being 650-900 DEG C.  Alternatively both stages may be effected at a temperature of 500-750 DEG C.  The pressure in the regeneration stage may be as low as atmospheric, or the same elevated pressure as that employed in the hydrogen-producing stage.  The process may be also effected discontinuously using two fixed beds of the oxide alternately for the production of hydrogen, the other being regenerated meanwhile.  The Specification as open to inspection under Sect. 91 comprises also the use of metallic iron, alloys of iron such as ferro-manganese or ferrochrome or other metals or lower metal oxides in the hydrogen-producing stage.  This subject-matter does not appear in the Specification as accepted.
Patent GB-754466-A (GB)
Title: A brazing apparatus for brazing the elements of a heat exchanger envelope
IPC: B23K1/00
Filed: 1954-03-05
Abstract: 754,466. Soldering and brazing; making heat exchangers. AIR PREHEATER CORPORATION. March 5, 1954 [March 18, 1953], No. 6537/54. Classes 83 (2) and 83 (4). Brazing apparatus for brazing heat exchanger envelopes having finned outer walls separated by rows of sinuous wires, comprises a moving bed for the envelope, an induction coil having an opening through which the envelope is passed, means for moving the envelope through the opening and means for positioning the finned walls and sinuous wires as they are moved through the coil. An envelope plate 24 with channels 28 tacked thereto by spot-welding with strip or sheet brazing metal therebetween is placed on rollers 10. A stationary comb-like jig 34 comprising fingers 36 is bolted to a frame with the fingers over the plate 24. Sinuous wires 30 are placed in the space between the fingers to be held upright on brazing metal on the plate 24. An upper plate 22 with channels 28 thereon and similar to plate 24 is placed on the wires 30 with brazing metal therebetween. The envelope is drawn over the rolls 10 by a cable 65 on a motor-driven drum 69 between a fixed lower comb-like guide 44 and a spring- pressed or weight-loaded upper comb-like guide 42, which guides engage the channels 28, through an induction coil 52 whose inner surface may conform to the cross-section of the envelope and finally between a second comb-like guide 58 which presses the envelope parts together, the brazing metal melted by the coil 52 having flowed by capillarity between the envelope parts. The rollers 10 may be power driven.
Patent GB-106126-A (GB)
Title: Improvements in or relating to Detachable Rims.
Inventor: BAKER FREDERICK WILLIAM
IPC: B60B25/20
Filed: 1916-05-08
Abstract: 106,126. Baker, F. W., and Foley, J. S. May 8, 1916. Detachable-rim attachments to wheels.-The detachable rim a, Figs. 1 and 2, is attached by the radially inward pull of pairs of hooked members c<1>, c<3>, which are mounted at distances apart around the wheel felloe and which operate in tension produced by the inclined surfaces c<7>, c<8> when the bolts e and nuts are placed in position. A pair of rims may be similarly attached. A permanently coupled twin rim may be attached by pairs of hooked members c', c<3>. Fig. 7, of which the members c' are permanently secured to the felloe. Fig. 11 shows a form in which the members c<1>, c<3> are hinged together at c<10>, and the inclined surfaces c', c<8> are formed between the members and plates f secured to the twin rim
Patent GB-164459-A (GB)
Title: Improvements in or applicable to milk transporting churns
IPC: B65D51/20
Filed: 1920-03-04
Abstract: 164,459. Carter, P. F., and Gallimore, P. H. March 4, 1920. Lids, hermetic; sealing-devices for closures other than corks and plug stoppers.-In a churn, a non-absorbent diaphragm A is placed on a shoulder B at the bottom of the neck C and is sufficiently thin and flexible for its edges to conform to the curved shape of the shoulder B when pressed thereon by the lower rounded edge of the lid D to form a fluid-tight joint. The diaphragm may be made of thin cardboard preferably treated with wax &c., and as it is difficult to remove without damage, tampering with the contents of the churn can be detected. According to the Provisional Specification, a series of small apertures may be made in the diaphragm for ventilation purposes.
Patent GB-1033838-A (GB)
Title: Production of pn-junctions
IPC: H01L21/22
Filed: 1964-02-17
Abstract: 1,033,838. Semi-conductor devices. INTERMETALL GESELLSCHAFT FUR METALLURGIE UND ELEKTRONIK m.b.H. Feb. 17, 1964 [Feb. 15, 1963], No. 6593/64. Heading H1K. A method of producing a semi-conductor device with a junction that is gradual at the surface and steep inside the body comprises diffusing an impurity into the body and alloying a similar impurity through the diffused region. The process is used to form the emitter region of a transistor, Fig. 2, by masking the surface of a P-type silicon wafer 4 doped with gallium using a layer 6 of silicon oxide. Phosphorus is diffused in through an opening in layer 6 to form an N-type base region 7, and the exposed surface is recoated with a layer 8 of silicone dioxide. Boron is diffused into the wafer through an opening in layer 8 to form P-type region 9, aluminium is applied to the centre of this region by vapour deposition over a mask, and the wafer is heated to alloy the aluminium through P-type region 9 to form P-type region 10. Base contacts 13, which may be strips, U-shaped, or annular, are applied to region 7 through openings etched in oxide layer 8. The emitter junction is in two parts, the outer part 12 which intersects the surface having a low impurity concentration gradient to provide a high breakdown voltage, while the inner part 11 has a high impurity concentration gradient to provide a high gain. NPN transistors can also be constructed and the invention can be applied to mesa transistors. Germanium and other semi-conductor materials may also be used.