baber/WOPTO huggingface dataset:
Patent GB-518404-A (GB)
Title: Improvements in means for ventilating vehicles
IPC: B60H1/26
Filed: 1938-09-29
Abstract: 518,404. Ventilators for vehicles. SLEIGH, H. L., CHESTON, A. S., and OLDHAM, F. A. M. Sept. 29, 1938, No. 28287. [Class 137] Vehicles are ventilated by means ensuring that entering air is directed over the heads of the passengers and adapted for extracting air from the vehicle, such means comprising an upright surface in combination with exterior upwardly directed surfaces extending along the vehicle at an angle to the horizontal. Ventilation apertures 4 are arranged above a window 1 and have lower channel-sectioned frames 3 sloping upwards, and widening towards the top. Vanes 6 are hinged at 7, and in a closed position are secured by a rocking piece 18 pivoted to a projection 17 on a lever member 14, rotation of which causes one vane to open as in Fig. 4, the other vane being held closed by contact with the edge of the lever 14. The air stream is directed upwardly by the surface 5 and into the vehicle through the gap caused by opening one vane. An extractor effect is obtained by opening the other vane when the vehicle is moving in the same direction. Water drawn into the channels between flanges 8, 9 is drained out at the deflected ends 10. In a modification, the ventilator panel may be fixed in an inwardly-oblique position to provide a permanent opening, vertical vanes 6 being set obliquely. These triangular vanes are mounted on upwardly-inclined surfaces 5 which progressively increase in width from their lower ends, and have flanges 9 at their outer edges. The upper edges of the surfaces 5 discharge air into or extract air from a recessed part 11 communicating through apertures controlled by a shutter 23 with the interior of the vehicle.
Patent GB-975673-A (GB)
Title: Snap action device
IPC: H01H61/06
Filed: 1961-08-04
Abstract: 975,673. Thermal switches; snap-action switches. TUNG-SOL ELECTRIC Inc. Aug. 4, 1961 [Dec. 20, 1960], No. 28402/61. Heading H2B. A snap action switching device comprises a rectangular vane 10 of resilient conductive material given a natural curvature about a longitudinal axis, a pull strip 4 being secured under tension to diagonally opposite corners 16, 18 to bow the vane away from its natural curvature when the strip is cold and to allow the vane, when the strip is heated, to snap towards its natural curvature bringing about one half of the length of the pull strip into heat conductive engagement with the vane. The pull strip 14 carries a contact 20 which in the cold condition engages a fixed contact 22. The curvature of the vane may be introduced by a crease 12 or by bosses or ribs 28 stamped in the vane. The vane may have an aperture 30 at its centre and strengthening ribs 32 (Fig. 6).
Patent GB-339023-A (GB)
Title: Improvements in or relating to die casting machines
IPC: B22D17/06
Filed: 1929-09-19
Abstract: 339,023. Rogers, F. H., (Krone-Sebek Die Casting & Manufacturing Co ). Sept. 19, 1929. Casting-machines; metal-pouring. - A diecasting machine in which a chamber 14 is first submerged in molten metal and then moved to align its nozzle 14<B> with the grate 13 of the die so that a charge can be forced in by compressed air introduced at 14<A>, has the upward movement effected by gravity means. The ladle has two pivots 15, 24, the former being connected to a lever 16, the pivot 16<c> of which can slide in a short longitudinal slot 20<A> in the frame 21, and the latter to a lever 25, pivoted on the frame at 26, and to a toggle 30, 32. The lever 30 is fixed to a shaft 29 on which a hand lever 36 is mounted, this shaft being adjustable laterally by screws 33 to position the nozzle 14<B>. A weight 34, adjustable on rods 35 which engage projections 14E, 14F on the chamber 14, moves the pot up and the weight of the lever 36 straightens the toggle causing the pivot 16<c> to move along its slot 20<A> and the nozzle to engage the die opening 13. The nozzle is adjusted vertically by an adjustable roller 17 which arrests the upward movement of the lever 16. The hand lever 36 is raised to brake the toggle and lower the chamber 14.
Patent GB-262410-A (GB)
IPC: A61C13/24
Filed: 1926-11-12
Abstract: 262,410. Ohio Chemical &. Manufacturing Co., (Assignees of Axelrod, M. L.). Dec. 7, 1925, [Convention date]. Drawings to Specification. Teeth, artificial.-Dental plates are formed of a plastic composition containing both solid and liquid Bakelite resins. The composition is hard at ordinary temperatures, but softens on warming, and is " cured " or hardened, after mould. ing the denture, by dry heating under pressure. The exposed portions, or the whole denture, may be made of such a mixture containing also wood flour, lithopone, zinc oxide, and a dye or pigment such as toluidine toner. Alternatively a denture of the simple dark-coloured mixture may be coated with an opaque pink varnish, or with ordinary dental rubber of suitable colour. A mould of plaster of Paris, Keene's cement, or the material, containing also powdered metal, described in Specification 260,287, [Class 87 (ii), Moulding plastic &c. substances.], is prepared in the usual manner, packed with previously warmed material, and the denture " cured " or hardened by dry heating to a temperature of 280‹ to 300‹ F. under pressure. The mould is strongly heated for a long period before packing in order to remove all moisture. After packing the flask is closed and pressure applied, but full pressure (preferably 500 lbs. to 1500 lbs. per sq. in.) to completely close the flask is not applied until the denture material has become highly plastic by heating to a temperature of about 260‹ F. The Specification as open to inspection under Sect. 91 (3) (a) refers to a mixture of Bakelite resin " SA 225 " and Bakelite liquid resin " LA 677. This subject-matter does not appear in the Specification as accepted.
Patent GB-519845-A (GB)
Title: Dart board
IPC: F41J3/00
Filed: 1938-10-03
Abstract: 519,845. Dart boards. 'BACHELOR, F. J. Oct. 3, 1938, No. 28634. [Class 132 (iii)] A dart board comprises a spiral of cotton cord glued to a back-board, the inner end being inserted into a central hole e.
Patent GB-444618-A (GB)
Title: Improvements in cipher or letter locks
IPC: E05B37/00
Filed: 1935-10-17
Abstract: 444,618. Permutation locks. MERKUS, H., and HOOGEVEEN, J., 45, Dampad, Zaandam, Holland. Oct. 17, 1935, No. 28688. [Class 44] A permutation lock comprises a cylindrical casing 1 enclosed at its front end by a cap 5 connected to a locking bolt 6, this bolt having a radial stepped disc 8 cooperating with a slotted sleeve 14, one or more slotted discs 19 and a fixed slotted retaining disc 22 to prevent withdrawal of the pin until all the slots have been aligned by appropriate rotations of the cap in alternate directions. The sleeve 14 has a projection 15 which is engaged by the highest step of the disc 8 when the cap 5 is turned, the slot 17 in the sleeve 14 being aligned with the slot 23 of the disc 22 when an appropriate indication on the cap is brought into register with a pointer. A reverse movement of the cap causes a step 12 on the disc 8 to engage one of two radial projections on the disc 19 to set its slot 21 into alignment with the slot 23. A further rotation of the cap in the original direction brings the stepped disc 8 opposite the three aligned slots and the pin can then be withdrawn from its locking position. The disc 22 has a series of false slots, in addition to the slot 23, which allow partial withdrawal of the stepped disc 8. The disc 8 is secured to the pin 6 by a rivet 9 which projects on each side to prevent complete withdrawal of the pin from the casing by engaging the disc 22.
Patent GB-644142-A (GB)
Title: Carbon papers
Inventor: HAMPSHIRE CHARLES ARTHUR
IPC: B41M5/10
Filed: 1947-10-27
Abstract: 644,142. Carbon papers. COLUMBIA RIBBON & CARBON MANUFACTURING CO., Ltd. Oct. 27, 1947, No. 28701. [Class 100 (iv)] A carbon paper is on the reverse face to that carrying the transfer coating, provided with a coating of flexible oil-repellent material. The oil repellent layer does not exert capillary attraction on the plasticizer of the transfer coating of an adjacent part of the paper when it is in roll form after manufacture, and so facilitates " ageing " of the papers. It is preferred that the layer should also be water repellent. A suitable composition consists of 80 parts by weight of zinc oleostearate and 20 parts by weight of copper resinate. The latter constituent may be replaced wholly or in part by magnesium stearate or cobalt resinate. Colouring matter, e.g. aluminium powder in the form of lining powder and green lake may be included in the composition to distinguish the two sides of the paper, or the colour may be applied separately and over part of the paper only. Other optional constituents are (a) material such as kieselguhr, argillaceous earth chalk, lithopone, ground aluminium or bronze powder to increase the surface friction of the backing coat ; (b) wax, such as carnauba up to 20 per cent, and (c) a drying agent which can be a metallic soap and may, in the example given above, comprise resonates such as copper resinate or naphthanates or linoleates. The metallic soap may be applied with or without solvents.
Patent GB-1018376-A (GB)
Title: A process for the preparation of polymer solutions from polymer latices
IPC: C08J3/09
Filed: 1964-07-14
Abstract: A solution of a homopolymer and/or copolymer is prepared from a latex thereof by creaming polymer from the latex and contacting it with a solvent for the polymer-the solvent being insoluble in water-and segregating the swollen and/or dissolved polymer mass thus formed by gravity and/or centrifuging.  The contact between the creamed polymer and the solvent may take place in the presence of the whole serum layer, or at least a quarter of the serum layer, preferably in the presence of a part of the serum layer in which the average polymer concentration is higher than the average polymer concentration of the serum layer as a whole, and at a temperature between 40 DEG  and 250 DEG  C.  The creaming may take place with an electrolyte solution and the aids used in the preparation of the latex and/or the creaming agent are removed by the discharge of serum and subsequent extraction; the extraction may be carried out with water, or alkaline aqueous solution or successively with both-after extraction the raffinate phase may be after treated with an absorbent.  Halogenated and non-halogenated hydrocarbons may be used as a solvent.  Specified polymers are homopolymers and copolymers of butadiene, isoprene, chloroprene, piperylene, and cyclopentadiene as well as those of vinyl acetate, vinyl chloride, acrylic and methacrylic esters, styrene, and acrylonitrile and natural rubber. Examples treat (I), (IV), (VII) to (XII) butadiene (70)-styrene (30), (II) butadiene-piperylene (III) polybutadiene (V) isoprene-piperylene (VI) piperylene and (XIII) butadieneacrylonitrile.
Patent GB-337535-A (GB)
Title: Improvements relating to tables, chairs and similar furniture
IPC: A47C3/28
Filed: 1929-09-24
Abstract: 337,535. Leabank Manufacturing Co., Ltd., and Kent, F. W. Sept. 24, 1929. Seat adjustments.-A means for adjusting the height of seats and similar furniture comprises a frusto-conical or frusto-pyramidal member h housed between a disc c on an inner stem b and a plate g on an operating-rod d, the parts being fitted in an outer stem a. The weight of the table, seat &c., is borne on the stem b, which, through the parts c, h, forces the balls j into engagement with the inner surface of the stem a. Release is effected by a hand-lever o and fork s. The balls j may be housed in recesses r in the inclined surface of the part h.
Patent GB-1060014-A (GB)
Title: Improvements in reciprocating diaphragm pumps
IPC: F04B43/02
Filed: 1965-07-08
Abstract: 1, 060, 014. Reciprocating pumps. PETERS & RUSSELL Inc. July 8, 1965 [July 8, 1964], No. 28988/65. Heading F1A. A diaphragm 34 secured over an oval shaped opening of a pump chamber 52 is reciprocated and oscillated about its inner axis by a connecting rod 48 connected to a crank on a shaft 46 driven by an electric motor 44. The chamber member overlies a pair of ports in a base member 11 and secures inlet and discharge valves 29, (30) over the port openings. The ports communicate respectively with inlet and outlet passages which have at one end inlet and outlet connections 19, (20) in the end face of the base 11 and at the opposite end connect with baffled air chambers framed in the portion 13 of the base member.
Patent GB-519149-A (GB)
Title: Improvements in and relating to escalators
IPC: B66B23/12
Filed: 1938-10-06
Abstract: 519,149. Escalators. HALL, Ltd., J. & E., and ORPIN, J. A. Oct. 6, 1938, No. 29022. [Class 78(i)] The slats of the tread surfaces of escalators nearest to the baluster casing are formed with inclined tread surfaces sloping upwards from the inner edge c' to the outer edge c<2>. Persons inadvertently placing their feet on this surface experience a feeling of discomfort and withdraw them to the level 'inner slats. Various other methods of forming these outer slats with the outer edge higher than the inner are described and illustrated.
Patent GB-488976-A (GB)
Title: Improvements in dental or like syringes
IPC: A61C17/00
Filed: 1937-10-23
Abstract: 488,976. Spray - producers; valves. PIEPER, A. F. Oct. 23, 1937, No. 29027. Convention date, Feb. 3. [Classes 69 (iii) and 135] [Also in Group VI] A dental or like syringe comprises a casing 11 terminating in an adjustable support member 17 and a readily detachable tubular unit 18 freely rotatable therein serving to control the fluid supply and terminating in a part 21 carrying a member 57 on a leaf spring 53 which is adapted on insertion of the unit into the casing to ride over a cam surface 63 on the member 17 and snap into a groove 59 to lock the unit in position. The unit 18 comprises the members 19, 22 and 22a, and passage of fluid through the central bore shown is controlled by a valve 28 in the part 22a. The valve is operated against the pressure of a spring 31 by operating a lever 43, a projection 47 on which engages a shoulder 49 on the part 19, and forces the latter downwardly against the pressure of a spring 38, thereby actuating the valve-operating stem 35. By screwing the collar 50 upwards increased movement of the lever to open the valve fully may be obtained.
Patent GB-267996-A (GB)
Title: Improvements in processes for the manufacture of potassium nitrate
IPC: C01D9/14
Filed: 1925-11-18
Abstract: 267,996. Lambert, A. Nov. 18, 1925. Potassium and sodium nitrates and chlorides. -Potassium nitrate is obtained by dissolving separately caliche and a potassium chloride mineral such as sylvite, carnallite, or Kainite, mixing the solutions, concentrating to remove sodium chloride, and crystallizing out the potassium nitrate. If desired, each solution may be partially purified by concentration so as to remove some sodium chloride before mixing the solutions. Alternatively certain natural lake waters may be employed as the source of potassium chloride. In an example, sylvite is digested with one or two parts of water so as to leave a part of the sodium chloride undissolved. The solution is concentrated to remove sodium chloride, and is then mixed with a solution of caliche which has also been concentrated for the same purpose. The mixed solution is further concentrated and more sodium chloride is removed. The solution is placed on ice and potassium nitrate crystals are separated. The mother-liquor is mixed with the wash-water and concentrated and cooled to recover more potassium nitrate.
Patent GB-533979-A (GB)
Title: Improvements in or relating to the construction of chairs, stools, tables and the like
IPC: F16B12/04
Filed: 1939-11-01
Abstract: 533,979. Furniture frames. BEXON, M., and LANE, Ltd., J. C. Nov. 1, 1939, No. 29182. [Class 52 (ii)] In order to reduce the cross section of the back legs without reducing their strength the side rails d only of chairs, stools, tables &c. are jointed to the legs g by mortice, dowel or other joints while the transverse rail a is similarly jointed to the side rail d instead of to the legs.
Patent GB-654332-A (GB)
Title: Improvements in or relating to fastening devices
IPC: F16B5/10
Filed: 1948-11-10
Abstract: 654,332. Stud and socket fastenings. BIELKOWICZ, P. Nov. 10, 1948, No. 29239. '[Class 44] In a cowling or like fastener, when a stud 1, Fig. 1, is pressed downwardly the winged and bevelled end of its extremity 6 expands a pair of spring abutments 9, and on rotation of the stud its chamfered side faces 7 compress the abutments 9 until they engage opposed recesses in the neck of the stud A plate 10, riveted at 11, Fig. 2, to one of the parts 12 to be united, is formed with inturned flanges having a pair of shoulders 15, which limit the rotation of the extremity 6 of the stud, and its base is apertured at 13 to pass the stud therethrough. The spring wire forming the abutments 9 is held by the bent, shorter ends 16, of plate 10. To retain the stud 1 in an aperture in the other part 5 to be united, a split washer 17 is provided whose initially upturned ends are flattened when the washer is in position. In a modification, the stud extremity 6 is provided with a centreing nose or pin 18, Fig. 7, which engages an aperture. in a trough 19 secured below the plate 10.
Patent GB-458877-A (GB)
Title: Improvements in the treatment of fabrics for the production of non-crease effects
IPC: D06M15/423
Filed: 1935-10-23
Abstract: Artificial silk, cotton, &c. fabrics are rendered resistant to creasing by impregnation with aldehydes and amino derivatives of 1 : 3 : 5-triazines or their substitution products, or with the water-soluble condensation products of these reagents, and then heating the impregnated fabrics to form the water-insoluble condensation products.  Acid catalysts accelerate the condensation, although their presence is not essential.  In examples, viscose artificial silk fabric is impregnated with a solution in hot water of melamine containing formaldehyde, and, after drying, heated to 145--150 DEG  C.; a solution in hot water of melamine and formaldehyde is made alkaline with sodium carbonate, and the solution evaporated to dryness or the pulp of crystals which forms on cooling separated, cotton fabric being impregnated with a solution in hot water of the dry product, and the fabric subsequently steamed; artificial silk material is impregnated with a solution in hot water of formoguanamine and formaldehyde, and the impregnated material heated to 145--150 DEG  C.
Patent GB-367314-A (GB)
Title: Improvements in or relating to electric switches for the prevention or extinction offire on aircraft
IPC: H01H35/02
Filed: 1931-01-22
Abstract: 367,314. Fire-extinguishers. BLAKEBOROUGH, R. A. and DENNE, R. A., Woodhouse Works, Brighouse, Yorkshire. Jan. 22, 1931, No. 29311. [Class 47 (ii).] A switch for closing a circuit to bring into play a fire extinguisher when an aeroplane tilts to a dangerous angle, comprises a vertical tube a containing a ball f pressed upwards by a spring e. When the aeroplane tilts unduly, the effective action of gravity on the ball f is reduced with the result that the spring e forces the ball upwards into engagement with a contact d. A time lag may be provided by filling the tube a with a viscous liquid, and a further time lag between the closing of the circuit and the operation of the fire extinguisher may be produced by using a bimetallic thermal relay.
Patent GB-710632-A (GB)
Title: Improvements relating to means for supplying warmed air to a windscreen or window in a motor vehicle
IPC: B60S1/58
Filed: 1952-11-20
Abstract: 710,632. Preventing dimming of windscreens. DAIMLER-BENZ AKT.-GES. Nov. 20, 1952 [Nov. 22, 1951], No. 29335/52. Class 20 (3) Warm air, heated by the engine, is supplied to a windscreen, or window, of a motor vehicle through a narrow slot provided between the transverse wall at the bottom edge of the windscreen, or window, and the adjacent edge of the bonnet. The Figure shows, on the left and right hand side, front and rear portions 1 of vehicles having forwardly and rearwardly disposed motors respectively. The lower edge of a windscreen 3, or window 4, is resiliently supported by a transverse member 5 which serves as a trough for the collection and disposal of water. A panel 6 is supported along its lower edge on the support 5, the upper edge being disposed parallel to the windscreen 3, or window 4, at a small distance therefrom, and the edge of the bonnet being bent over the edge of the panel 6. The panel 6 or the support 5 is slotted so that warm air from the engine passes to the windscreen, or window, in the direction of the arrow.
Patent GB-698719-A (GB)
Title: Improvements in or relating to talking machines
IPC: G11B17/02
Filed: 1951-12-17
Abstract: 698,719. Magazine gramophones. PAILLARD SOC. ANON. Dec. 17, 1951 [Aug. 20, 1951], No. 29449/51. Class 40 (ii). The cycling disc 1 controls a record supporting spindle as described in Specification 694,837, a device for feeling the diameter of records as described in Specification 689,765, a timing device as described in Specification 689,766 for giving a pause between records, and the movement of the tone arm. The gramophone is controlled by a manually operated control 77 having "Stop," "Start," and "Reject" positions. When the control is moved to "Start," a rod 76 moves a lever 33 to engage a surface 33b with a finger 40 and to cause a finger 35 to rotate a lever 27 and close a switch 32 to start the motor and drive the turntable through its spindle or through a friction disc acting on its periphery as described in Specification 691,774. When the control is moved to "Reject," the finger 40 engages a surface 33c and a lever 12 is moved to disengage a stop 10 on the disc 1 and the disc 1 rotates under the action of a spring 18, until the disc engages a driven pinion 4 which drives the disc until a gap 9 is opposite the pinion. During the rotation of the disc the control 77 is returned to " Start " by a spring 80 to bring the lever 12 into line with the strip 11 to stop the disc. In this position, a wheel 19 of the timing device is brought into operation by engagement with a pin 75 on the pinion 4; a link 42 places the pick-up arm in its outer position; and the pivot 44 allows a lever 51, Fig. 3, to push a finger 56 to raise the pick-up arm. After a predetermined time, the timing device 19 moves, through a wire 21, the lever 12 sufficiently to release the stop 11. A spring 30 then moves the lever 27 and a cam 14, fixed to the disc 1, through an angle sufficient to re-engage the pinion 4 with the disc 1. The disc, driven by the pinion 4, now completes its cycle and the cam 14 through a lever 15 moves the timing device to an inoperative position. Also through the action of levers 42, 47, the pick-up arm is returned until the end of the lever 48 abuts against the cam 49 of the device for feeling the diameters of the records, and the lever 51 allows the pick-up arm to fall onto the edge of the record to be played. While the pick-up approaches the centre of the record, the finger 56 moves a lever 62 and through a rod 66, attached to it by a friction device 64 a tap-tap mechanism comprising a lever 67 and the pin 75. When the pick-up reaches the end of the record, a pawl 70 on the lever 67 falls into a notch 73 and the lever 12 is moved to start the next record changing cycle. When all the records have been plaved, a detecting device as described in Specification 689,090 lifts the lever 33, so that a pin 79 on the disc 1 engages the finger 35 on the lever 32 to move it into a position with the surface 33a engaging the finger 40, i.e. with the control lever 77 in the "Stop" position. When the control is at "Stop," a pawl 83 prevents the lever 48 from moving in a direction which will move the tone arm over the record.