baber/WOPTO huggingface dataset:
Patent GB-504191-A (GB)
Title: Improvements in or relating to the production of toughened glass
IPC: C03B27/052
Filed: 1937-10-20
Abstract: 504,191. Tempering glass. ARON, H. (Ferre & Cie, Ing. F.) Oct. 20, 1937, No. 28608. [Class 56] An apparatus for tempering glass sheets is provided with air distributers in the form of corrugated plates having air jets disposed along the ridges of the corrugations, the furrows between the ridges allowing the air to escape after impinging on the hot glass. Means are provided for reciprocating the distributers in open curvilinear paths, and for turning on the air automatically as soon as a glass sheet is in position between the distributers. The glass sheet 16, Fig. 1, is heated in a furnace 13 and is lowered through an opening 24 into the cooling device. This consists of two corrugated plates 26, 27 which slide on horizontal guide rods 30 and are reciprocated by a crank 43, Fig. 3, rotated by a motor 50. The plates 26, 27 are connected by tapered trunks 105 with blowing-fans 101, bellows 58 being interposed between the plates and the trunks to permit the reciprocations of the plates. - Each of the plates has a deeply corrugated surface comprising ridges 40. The crests of the ridges are provided with slits which direct fan-shaped jets of air on to the glass sheet, the slits being so arranged that the air jets impinge on the glass at an angle of 70‹ to its surface. The furrows between the ridges allow the escape of air which has been heated by the glass, and this may be facilitated by making the furrows 257. Fig. 10, shallower at the middle than at the edges. The air jets may also be formed by short tubes fitted to apertures in the ridges. In a modified construction, the distributers 26, 27 may slide in horizontal slides 180, Fig. 8, which are supported on the straps 82 of rotating eccentrics. The rotation of the eccentrics and of the crank 43 are so timed that each air jet moves in an open curvilinear path. The fans 101 are provided with inlet trunks 63, Fig. 3, fitted with butterfly valves, and these valves are connected with one another by a shaft 64 and are opened by the suction of the fans against the action of springs. Normally, the valves are locked in the closed position by latches, but the latches are opened, when a glass sheet is lowered between the distributers, by a bar 18 from which the glass is suspended, thus admitting air to the fans.
Patent GB-196944-A (GB)
Title: Improved process of separating minerals mechanically
IPC: B03B1/00
Filed: 1921-10-28
Abstract: The ingredients of ores of metal value are separated by mechanically colloidalizing one ingredient and leaving the other substantially unaffected by high speed mechanical disintegration, for example in a colloid mill as described in Specification 155,836, in presence of a dispersator, possessing an electrical charge of the same sign and preferably of the same magnitude as the charge on the particles of the ingredient to be colloidalized. In an example zirconia earths are treated in a colloid mill with water-glass and caustic alkali.  The colloidal solution of zirconium oxide may be decanted from the impurities and may be centrifuged, ultra-filtered or subjected to electric-endosmose to obtain the pure oxide.  Sulphite-cellulose liquor and free alkali may be used as dispersator and silver, copper, tin and mercury ores may be similarly treated.  A further example shows the colloidalization of manganese compounds from a chromium manganese ore using cherry gum and alkali as dispersator.  Manganese iron and manganese aluminium ores may be similarly treated and also tungsten or vanadium compounds or osmium, platinum, palladium &c. obtained from their ores.  Other dispersators are proteins or gums dissolved in alkali.  The Provisional Specification refers also to the treatment of other than metalliferous ores such as clay, brown earths, felspars and rock phosphates, and gives an example of the colloidalization of the impurities from graphite ore using a synthetic phenol tanning agent and alkali as dispersator.  The graphite itself is then colloidalized using tannic acid. Specifications 176,002 and 176,003, [both in Class 59, Grinding, crushing, &c.], are also referred to.ALSO:The chromium is separated from the manganese in a mixed chromium manganese ore by selectively colloidalizing the manganese compounds by high-speed mechanical disintegration, for example in a colloid mill as described in Specification 155,836, [Class 1 (i), Chemical processes &c.], in presence of aqueous cherry gum and alkali as dispersator. Specifications 176,002 and 176,003, [both in Class 59, Grinding, crushing, &c.], are also referred to.
Patent GB-979960-A (GB)
Title: Improvements in or relating to electric flow switch assemblies
IPC: H01H35/40
Filed: 1963-07-19
Abstract: 979,960. Switches, partly magnetic. THERMOTRONICS CORPORATION Inc. July 19, 1963 [Sept. 18, 1962], No. 28695/63. Heading H2B. A switch assembly 21 comprises two chambers 24a, 25a separated by a resilient diaphragm 29 having a permanent magnet 31 secured thereto, and magnetic contact members 33, 34 (Fig. 2) in an envelope 30 projecting into one of the chambers. The switch assembly is connected by conduits 22, 23 to further conduits carrying fluid to and away from a cylinder containing a heater which is normally switched off. When a pressure differential is created between the fluid in the conduits 22, 23 the diaphragm moves to the position shown at 29A, the magnet 31 actuating the contact members 33, 34 to switch the heater on.
Patent GB-363018-A (GB)
Title: Improvements relating to the welding of manganese steel and to electrodes for use therein
IPC: B23K35/30
Filed: 1930-09-25
Abstract: The jaws of rock crushers, cement-grinding machinery, and other articles made of austenitic manganese steel, i.e. steel containing from 12 to 20 per cent of manganese, are reinforced or built up by the fusion deposition thereon from a welding electrode or rod of a layer of austenitic nickel-chromium steel containing 7-11 per cent of nickel and 15-20 per cent of chromium, and also, if desired, up to 0,5 per cent of tungsten or molybdenum, so as to obtain articles with hard surfaces and tough foundations.  The layer is stated to harden on the surface when subjected to abrasive stresses, which thus increases the resistance to wear.  The layer may be 3/16 of an inch thick or thicker layers may be applied by two runs of the electrode. The electrode may consist of a core of nickel-chromium steel containing 6-10 per cent of nickel, 15-30 per cent of chromium and if desired 0,5-2 per cent of tungsten or molybdenum.
Patent GB-825201-A (GB)
Title: Improvements in or relating to apparatus for drying grass, hay and like agricultural produce
Inventor: ATKINSON RICHARD LESLIE
IPC: F26B17/08
Filed: 1954-10-07
Abstract: 825,201. Grass drying apparatus. ATKINSON'S AGRICULTURAL APPLIANCES Ltd. Jan. 6, 1956 [Oct. 7, 1954], No. 28856/54. Class 34(2) Grass to be dried is taken by conveyers 17, 14 to the top of superposed conveyers 5, 6, 7 which are housed, with the conveyer 14, in a casing 1 having a roof partially covered with glass wool and walls of insulant slabs 2. The conveyer 17 ana a spiked, motor-driven roller 20-which deposits the grass evenly across the width of the conveyer 14-are mounted in an open-ended and open-topped casing 18. The dried grass is discharged through a transverse slot 4 and the conveyers 5, 6, 7 are driven by a motor 34 through pawl and ratchet transmission mechanism housed in a box 35 and having two pawls so arranged that as one makes a return or idle stroke the other makes a driving stroke and vice versa, means being provided to vary the strokes of the pawls to control the conveyer movement rate. The conveyer rollers 8, 11, 13, 15, are adjustable for height above the ground and the conveyers 17, 14 are driven by the fan motor 21 through a pawl and ratchet transmission mechanism of the type described. Drying air is supplied adjacent the discharge end of the casing 1 below the conveyer 7 by means including a heater 23, a supply duct 22 and a fan unit 24, the heater comprising an oil burner having a jacket through which air drawn from the atmosphere is passed before following a circuitous path within the burner. The hot air is filtered beforeentering the drying space via a distributer box mounted in the casing and having a plurality, of channels which receive the air simultaneously from the duct 22 and direct it into the space at zones spaced widthwise of the casing. Pivoted deflector plates above the channel outlets are adjustable from the casing exterior to vary the direction of the isuing air. In an alternative box construction the channels are dispensed with and the box is covered with a plate mounting one or more air diffusers controllable from outside the casing. In both box constructions and upward air flow may be cut off and the air used for cleaning the casing interior. Part of the air passed through the casing may be returned to the burner through a duct 25. A grass baler in combination with a further conveyer upon which the dried grass is subjected to a cooling air stream may be combined with the drying apparatus.
Patent GB-430427-A (GB)
Title: Improvements in holders for composite type casting matrices
IPC: B41B11/52
Filed: 1933-10-20
Abstract: 430,427. Type-bar-making machines. LUDLOW TYPOGRAPH CO., 2032, Clybourn Avenue, Chicago, U.S.A.-(Assignees of Merrill, P. P. ; 425, Greenwood Boulevard, Evanston, Illinois, U.S.A.) Oct. 20, 1933, No. 29052. Convention date, Oct. 26, 1932. [Class 100 (iii)] A type-matrix holder comprises an apron or bar which is associated with one wall of the holder and is movable towards and away from the opposite wall to provide a matrix-receiving opening of variable width permitting individual matrices to be shifted crosswise of the line thereof in the holder. The matrix holder comprises a frame 22 having stationary end walls 29, 31 and sides 25, 34 defining a matrix-receiving opening 23 for matrices 24, the side 25 being provided with a scale 26. The matrices are clamped up by a sliding end guard 28 operated by a screw 30, and the opening is of greater width than the length of the portions of the matrices which extend thereinto, whereby the matrices may be shifted relatively to each other crosswise of the opening. The wall 34 is provided with a longitudinal recess 35 in which is pivoted a bar 33 on end trunnions, journalled in the end pieces 29, 31. The lower edge of one end of the bar 33 is provided with a pin which engages in an eccentric groove on a rotatable member 37, so that when the latter is rotated, the bar 33 is swung towards or away from the matrices. In use with matrices of different founts, the upper case letters are slid crosswise of the holder to abut against the apron 33 while the lower case letters abut against the wall 25. The matrices are lightly clamped and the member 37 is rotated to move the upper case letters into alignment. The device may be employed for aligning matrices of the same fount, and a scale may be marked on the knob 37. In a modification, the adjustment is effected by means of a longitudinal bar which engages by a tongue and groove connection with the wall 34, the tongue and groove being inclined to the longitudinal axis of the bar, whereby when latter is caused to slide longitudinally relatively to the wall 34 it is also given a transverse movement towards the wall 25. for aligning purposes. The sliding movement may be obtained by means of a threaded stud extending outwardly from the end wall 29 and carrying a nut which extends into a transverse slot on the bar, and the latter may be furnished with a scale.
Patent GB-1260595-A (GB)
Title: Exothermic insulating compositions
Inventor: TISDALE NORMAN FENWICK JR
IPC: B22D7/10
Filed: 1970-06-16
Abstract: 1,260,595. Foundry mould heat-insulating composition. SUSQUEHANNA CORP. 16 June, 1970 [25 July, 1969; 27 March, 1970], No. 29091/70. Heading C3N. A composition for insulating metal castings, comprises by weight: (a) 50-82% of a finely-divided refractorymaterial comprising by weight of the total composition of at least 10% glass polishing residue, 0-72% sand, 0-20% silica flour and 0-20% diatomaceous earth; (b) 4-12% asbestos; (c) 0-12% cellulosic material; (d) 0-12% of a finely-divided metal or metal alloy selected from aluminium, aluminiumsilicon, calcium-silicon, ferro-silicon and ferrosilicon-aluminium; (e) 0-14% of a metal oxide exothermically reactive with the selected metal or metal alloy at the teeming temperature of the metal to be cast; and (f) 3-12% of a silicate binder or organic polymer binder. The term glass polishing residue is defined as the residue obtained when glass is polished with a polishing material and such material contains both polishing material, such as rouge, and small fragments of glass. The finely-divided refractory material is preferably present within the range 60-79% by weight of the total composition, of which the glass polishing residue comprises, by weight of the total composition, at least 15% and the finely-divided sand 0-64%. It is preferred that the finelydivided refractory material has a particle size below 0À25 mm. The cellulosic material may be wood flour, ground-wood, pulp or shredded paper. Suitable metal oxides are manganese dioxide, iron oxides and mixtures thereof. Suitable polymeric binders are phenol formaldehyde, urea formaldehyde, polyvinyl acetate, a furfuryl alcohol resin, a furfuryl alcoholurea formaldehyde resin, a furfuryl alcoholphenol formaldehyde resin or a mixture thereof. The composition may be used for forming hot tops or for insulating the inner surface of a hot top. Suitable reinforcements may be incorporated into the composition such as metal, fibreglass or plastic screen.
Patent GB-790332-A (GB)
Title: Improvements in or relating to film packs for use in dental radiography
Inventor: FARRINGTON GEORGE HOWARD
IPC: G03C3/00
Filed: 1955-10-12
Abstract: 790,332. Film packs for radiography. ILFORD, Ltd. Sept. 21, 1956 [Oct. 12, 1955], No. 29098/55. Class 98(1) In an X-ray film pack having rounded corners, the corners of the sheet or sheets of sensitive film are rectilinearly truncated. Preferably, the corners of all the other sheets in the pack are similarly truncated. The sheets may be formed from strip material of the correct width by first notching the strip and then severing the strip between the apices of the notches. As shown, a jack consists of an outer covering 11 of duplex red/black paper, sheets 14, 16 and 18 of black paper, sheet 15 of photographic film and sheet 17 of lead foil. The exposed face of sheet 18 is coated with adhesive to secure the folded over margins of sheet 11 and a label 13 having rounded corners or which may have truncated corners. Tag 21 consists of a tongue in sheet 18 stuck to a slightly longer tongue in sheet 13. A depression 22 is provided in all sheets or in the film alone.
Patent GB-333091-A (GB)
Title: Improvements in rotary extruding presses
IPC: B30B11/00
Filed: 1929-09-26
Abstract: 333,091. Hõndle, K., and Hõndle & S÷hne Maschinenfabrik & Eisengiesserei. Sept. 26, 1929. Extrusion machines.-In an extrusion machine of the kind comprising a rotary drum 12 carrying radially movable slides 14 which are projected from and retracted into the drum during its rotation, the slides have considerable play in the slots in which they move and are guided by rollers or balls arranged in the walls of the slots. The slides are moved by cam surfaces on the end frames which may be adjustable both longitudinally and laterally. Material, especially clay for brick-making, is delivered to the hopper 7 and drawn between the main drum and feed roller 20 where it is crushed between the periphery of the drum and the curved portion 5 of the casing before being delivered in a continuous bar at the die 8. The slides, which assist in the feeding movement, contact with the casing at the part 5 and are guided by the balls or rollers 17 in pockets in the drum. Stripper plates '19, 23 are mounted at suitable points. In a modified construction, two drums 12 are mounted side by side and the slides on the two drums are. in staggered relation so that material is delivered simultaneously to two dies on opposite sides of the apparatus.
Patent GB-257457-A (GB)
Title: Improvements in vehicle tyres
IPC: B60C7/16
Filed: 1925-11-19
Abstract: 257,457. Guvia, D. L. Nov. 19, 1925. Metallic - spring bodies and cores.-A wire-mesh core fitted within a tyre cover 7 consists of pairs of transverse wires 9, 9<1> and oblique pairs 10, 10'-11, 11<1> arranged as shown in Fig. 1. At intervals around the tyre, the core is connected to a floating ring 23 by wire braces 24. At the points of intersection, the wires may be welded &c. to thimbles 13 which may be used for attaching the core to the cover by staples 25. The edges of the core are clamped to inclined seats 3, 4 on the rim 1 by rings 15, 16 which are adjusted by bolts 17, 18.
Patent GB-483997-A (GB)
Title: Improvements in or relating to tip-up seats
IPC: A47C7/56
Filed: 1936-10-28
Abstract: 483,997. Tip-up seats. TRINITY CHAIR WORKS, Ltd., BLAKEY, G. G., JONES, V. P., and PARKINSON, A. Oct. 28, 1936, No. 29237. [Class 52 (ii)] Tip-up seats are provided with resilient silencing buffers arranged to take the impact between the seat bracket and the stops when the former is moved from one position to the other, the buffers being secured to the bracket or the stops by means of rivets, bolts or the like and being recessed to accommodate the beads, nuts, or clinched-over portions of the bolts or rivets. The buffers may be secured one to each of the stops. Alternatively pairs of buffers 4, 5 may be secured by a common fastening 8 on opposite sides of the seat bracket.
Patent GB-686276-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: H03B5/30
Filed: 1950-11-29
Abstract: 686,276. Electrical m u s i c a l instruments. DEREUX, J. A. Nov. 29, 1950 [Nov. 30, 1949; April 21, 1950; Oct. 25, 1950], 'No. 29295/50. Class 88 (ii). Electrical oscillations are generated electrostatically between vibrating reeds 8 and stationary electrodes 10, all the reeds being simultaneously and continuously vibrated while those which are required to speak are selectively energized. Air is driven obliquely past the free ends of the reeds 8 by a wind supply device 13 operating in a closed pneumatic circuit, Fig. 1 or 9. The reeds are arranged in two rows so that the frequencies of any two adjacent reeds differ by at least a whole tone, and each reed is electrostatically shielded from its neighbours. The pick-up electrodes 10 are mounted on bars 9 connected to an amplifying circuit. Depression of a key 16, Fig. 4, brings resilient wires 20 into contac with bus-bars 15, of which then is one for each partial re quired, thereby energizing the corresponding reeds 8. The potential of each bus-bar, anc hence the strength of the cor responding 'partial, may be adjusted by means of an associated potential divider 23, 24, Figs. 6 and 7. Expressior pedals control the volume through potential dividers 30, Fig. 7, and a vibrato is introduced by a low-frequency oscillating valve 31 and circuit 32. Parallel amplifying circuits b A c, b B C c, Fig. 11, having equal gains but differing by an odd number of valves so that there is a relative reversal of phase, eliminate certain stray oscillations produced by the switches 15, 20. Radiation from the circuits is reduced by the insertion of suitable resistors. In particular, each bus-bar 15 consists of several portions joined by series resistors.
Patent GB-610537-A (GB)
Title: Improvements in or relating to fluid feeding devices suitable for use with fountain brushes
IPC: A46B11/00
Filed: 1945-11-05
Abstract: 610,537. Inertia-actuated valves. KRAMMER, E. J. Nov. 5, 1945, No. 29373. Drawings to Specification. [Class 135] [Also in Group XXIII] The subject-matter of this Specification is identical with that described in Specification 610,536, but the claims differ.
Patent GB-812772-A (GB)
Title: Printed circuit
IPC: H05K3/04
Filed: 1956-09-26
Abstract: 812,772. Moulding printed circuits. ERIE RESISTOR CORPORATION. Sept. 26, 1956 [Oct. 10, 1955; Nov. 7, 1955], No. 29405/56. Addition to 725,115. Class 87(2). [Also in Groups VIII and XXXVI] In a method of making a printed circuit as described in the parent Specification in which a metal foil sheet is united to an uncured resin-impregnated laminate under heat and pressure to mould the laminate to a desired form, cause the metal foil to adhere thereto and effect the curing thereof, holes extending wholly or partly through the laminate are formed where required during the moulding process. Fig. 4 illustrates the resultant form of the laminate and attached metal foil after moulding between heated dies as shown in Fig. 3. By grinding away the upper surface of the laminate at the level 19, the desired circuit configuration is obtained ; while by removing its lower surface at the level 20, the hole partly formed during the moulding is completed. Figs. 5 and 6 (not shown) illustrate a modified arrangement in which the form of the die is such that the hole is completely formed during the moulding operation.
Patent GB-246629-A (GB)
Title: Improvements in washing machines
IPC: D06F37/10
Filed: 1924-12-08
Abstract: 246,629. Marks, E. C. R., (Troy Laundry Machinery Co., Ltd.). Dec. 8, 1924. Washing-machines with rotary receptacles. - In that class of machine in which the receptacle 2 is provided with a hinged door 4 having a latch member in the form of a bolt 15 engaging under a circumferential band 3 provided on the receptacle, the circumferential band is provided with a detachable and reversible wear plate 21. The bolt slides under a bridge member 16 bolted to the hinge 5, which is also provided with lugs 14 serving as additional guides for the bolt.