baber/WOPTO huggingface dataset:
Patent GB-1237861-A (GB)
Title: Conveyor system
Inventor: MANN CHARLES ALAN
IPC: B65G51/03
Filed: 1967-05-26
Abstract: 1,237,861. Pneumatic floatation conveyers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 9 Aug., 1968 [26 May, 1967], No. 24691/67. Heading B8A. [Also in Division F2] An assembly for conveying articles by floating them on fluid cushions includes valve members which allow fluid to be released from the fluid supply only when the article to be transported is above the fluid outlet. The assembly comprises a series of orifices 5, each of which opens from a chamber 6 housing a valve member 8 which is held against a seat 9 by the fluid pressure in the chamber in order to seal the orifice. The valve member projects through the orifice so that it may be displaced from the seat by contact with the article to be transported. The valve member remains displaced from its seat while the article is above the orifice allowing fluid to flow to form a cushion under the article. When the article is not over the orifice, the flow of fluid through the chamber returns the valve member to its sealing position.
Patent GB-456234-A (GB)
Title: Improvements in apparatus for feeding measured quantities of granular material to wrapping or other machines
IPC: B65B1/38
Filed: 1935-09-05
Abstract: 456,234. Delivering measured quantities of granular &c. material. FORGROVE MACHINERY CO., Ltd., and GROVER, F., 432, Dewsbury Road, Leeds. Sept. 5, 1935, No. 24748. [Class 106 (v)] In apparatus for delivering measured quantities of granular material of the kind in which a cylinder a having a plunger f is mounted on trunnions a<1> so that it can be rocked from a charging position, Fig. 1, beneath a hopper b to a discharging position, Fig. 3, the plunger is operated by mechanism which is in uninterrupted connection with the plunger and which has means for adjusting the stroke of the plunger without affecting either its timing or the mechanism for rocking the cylinder. The cylinder is rocked by means of arms a2, links a<3> and a lever a4 pivoted to a fixed shaft c and operated by a cam (not shown) on a driving shaft d. The plunger is operated through a stem f<1> having a lateral extension f<2> engaging within the slot g of a cam-slotted lever g<2>, g4 mounted on a fixed pivot g<3> and oscillated by means of a link g<5> and a lever h also mounted on the shaft c and operated by a cam (not shown) on the shaft d. An adjusting slot h<1> is formed in the lever h and is struck with a radius from the joint between the link g<5> and lever arm g<4> as centre so that in the position shown in Fig. 1, the stroke of the plunger may be adjusted without altering its outermost position. In operation, from the position shown in Fig. 1, the lever g<2>, g<4> is first rocked to move the plunger inwardly, the cylinder is then rocked into the discharge position and the plunger is moved outwardly to discharge the material. In order to avoid any outward movement of the plunger as the cylinder is being moved from the charging to the discharging position or any inward movement of the plunger as the cylinder moves back to the position beneath the hopper, parts of the cam slot g are made substantially concentric with the trunnions a<1> of the cylinder.
Patent GB-259950-A (GB)
Title: Improvements in the manufacture and production of condensation products of urea and its derivatives and formaldehyde
IPC: C08G12/12
Filed: 1926-10-06
Abstract: 259,950. I. G. Farbenindustrie Akt.- Ges. Oct. 16, 1925, [Convention date]. Urea-formaldehyde condensation products are hardened bv treatment with sulphur dioxide in the gaseous or dissolved state and with or without the use of heat. When the hardening agent is in the gaseous state, pressure may be employed; the solution may be in water or a non- aqueous solvent. The process is also applicable to condensation products of derivatives of urea with formaldehyde and to mixtures of the same. Examples are given according to which a condensation product prepared from urea and formaldehyde is (1) exposed as a film on a plate to gaseous sulphur dioxide, (2) prepared in the fibre form in the same way as artificial silk, and hardened by passage through an atmosphere of sulphur dioxide or a solution of the same in acetone. The products are also useful as lacquers and insulating materials. The Specification as open to inspection under Sect. 91 (3) (a) refers to condensation products of urea and formaldehyde prepared in the presence of mono- and di-sodium phosphates and includes an example according to which such a condensation product is poured into a prismatic mould, and after a preliminary heating, removed and exposed to gaseous sulphur dioxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-248406-A (GB)
Abstract: 248,406. Barta, P. March 2, 1925, [Convention date]. Void [Pubished under Sect. 91 of the Acts]. Fibrous compositions.-Shoe soles and various unspecified articles are made of felt impregnated with caoutchouc of different degrees of vulcanization. Three examples of making the material are given, of which the following is typical. There is incorporated with a mass of felt fibre a quantity of scrap rubber of a high degree of vulcanization in a finely divided condition. Hence use can be made of waste incidental to manufacture. The mixture is then impregnated with a solution of rubber in any suitable solvent and submitted to pressure and vulcanized to such a degree that the absorbed rubber remains soft and elastic. Filling materials and colouring may be used.
Patent GB-965085-A (GB)
Title: Block copolycarbonates
IPC: G03C1/795
Filed: 1960-07-18
Abstract: Block copolycarbonates contain (a) blocks of recurring units having the formula: <FORM:0965085/C3/1> in which W, X, Y and Z are hydrogen, chlorine, fluorine or methyl and R1 and R2 are hydrogen, C1-C6 alkyl (which may be chlorinated or fluorinated) or phenyl (which may be chlorinated or fluorinated) and (b) recurring units of formula: <FORM:0965085/C3/2> derived from a compound of formula: HO-R-OH in which R has a molecular weight of 100-10,000 and may be a linear polyalkylene ether, polymethylene, polyester, polyurethane or polystyrene residue.  The copolycarbonates are made by first reacting an appropriate bis-phenol with phosgene to form a polycarbonate having recurring units A, then reacting the compound of formula HO-R-OH with phosgene to form its bis-chloroformate, and then copolymerizing the polycarbonate and the bis-chloroformate. Examples disclose reacting the polycarbonate of 2,2-bis-(4-hydroxyphenyl) propane with the bischloroformate of (1) and (2) polyethylene glycol (M.W. 200 or 1,050); (3) polytetrahydrofuran glycol (M.W. 3,000); (4) poly(ethylene adipate) (M.W. 2,000); (5) dihydroxylated polystyrene (M.W. 8,000).  The copolycarbonates are soluble in benzene, methylene chloride and chloroform and are useful in the manufacture of photographic film bases (see Division G2), fibres, adhesive film bases, dielectrics and objects for use under hot conditions. Dihydroxylated polystyrene is made by polymerizing styrene in the presence of benzoyl peroxide and methanol, dissolving the polymer in dioxane containing potassium hydroxide dissolved in methanol, and then heating the solution.  Specifications 808,485 and 912,203 are referred to.
Patent GB-240797-A (GB)
Title: Improvements in or relating to combination switches
IPC: B60R16/00
Filed: 1925-10-06
Abstract: 240,797. Soc. Anon. Lumino, (Assignees of Genty, A.). Oct. 6, 1924, [Convention date]. Order apparatus.-Relates to a particular construction of a pressbutton switch and to the application of two such switches to vehicle signals whereby the depression of one button illuminates an arrow pointing to the right, the depression of the other illuminates an arrow pointing to the left, and the simultaneous depression of both buttons illuminates a " stop " signal. The switch, Figs. 1 and 2, comprises a button 4 which bears against a five-pointed star element 14 which lies between two long and three short terminal contacts 8. The element 14 consists of three upper arms forming one bridging member and two lower arms forming another bridging member. One arm of the upper bridging member remains in perpetual engagement with a long contact, another arm engages the other long contact when the button 4 is in its upper position, and the third arm engages a short contact when the button 4 is depressed. The lower bridging member serves to bridge the remaining two short contacts when the button 4 is depressed. Fig. 3 shows the manner in which two such switches are connected to the signal; the particular circuit, that is closed when the left-hand button is depressed being indicated in darker lines.
Patent GB-1313711-A (GB)
Title: Scintigraphic preparations
IPC: A61K51/12
Filed: 1970-05-22
Abstract: 1313711 Scintigraphic analysis PHILIPS' GLOEILAMPENFABRIEKEN NV 22 May 1970 [28 May 1969] 24962/70 Heading B1X [Also in Division G6] Globin and/or haemoglobin are sensitised for scintigraphic analysis by means of stannous chloride solution having a pH from 7.35 to 7.45.
Patent GB-972786-A (GB)
Title: Improvements relating to apparatus and methods for cooling cutting tools
IPC: B23Q11/10
Filed: 1962-06-29
Abstract: 972,786. Machine tool details. P. G. MEYERS. June 29, 1962 [July 5, 1961], No. 25106/62. Headings B3B, B3C and B3K. [Also in Division H1]  Apparatus for cooling cutting tools comprises heat conductive material adapted to contact a cutting tool, thermo - electric elements having their cold junctions in heat-conducting contact with the heat-conductive material, and heat-exchanger means including heatabsorbing and transferring material in contact with the hot junctions of the thermo-electric elements and means for passing current through the thermo-electric elements to promote the heat conduction away from the tool, the embodiments include cooling means for a lathe tool, drill, and milling cutter. Fig. 1 shows an embodiment having a block 16 of good heat-conducting material, e.g. aluminium or copper in contact with a lathe tool 12. Arranged on all five exposed sides of block 16 are thermo-electric elements 15 electrically connected to have their cold junctions in contact with block 16. Surrounding the elements and having one face in contact with the hot junctions is a heatexchanger 70 which comprises a container provided internally with fins and containing heatconducting and absorbing material, e.g. water, paraffin, or Woods metal. In order to promote cooling the heat exchanger may be provided externally with fins over which air may be blown by a fan, and the material in the container may be circulated by a pump (Fig. 3, not shown). Thermo-electric elements are formed of alternate P and N- type bismuth telluride blocks 60, Fig. 7, connected in series by bars 62 forming hot junctions on one side of the assembly and cold junctions on the other, the elements being embedded in plastic foam 63 to protect them from vibration. The hot and cold junctions are insulated from the adjoining heat conductive layers 30 and 72 by thin sheets of mica 61. If desired, two or more units may be stacked, one unit cooling with its cold junctions the hot junctions of the second unit. Alternative embodiments.-Fig. 5 shows the cooling of a tool 12 by arranging the toolholder 14 to be of material of good heat conduction and which is arranged between P-type elements 120 and N-type elements 122 to form the cold junction itself, whilst the outer ends of the elements are cooled by a heat-exchanger similar to that described above. Fig. 6 shows the method of cooling a drill 130, the shaft of the drill being enclosed in an annular chamber 134, containing, e.g. water, the outer surface of which contacts the cold junctions of the thermo elements, the hot junctions being in contact with an annular heat-exchanger similar to that described above. Fig. 9 shows a similar arrangement for cooling a horizontal milling cutter 300 chamber 304 containing e.g. water to conduct heat to the cold junctions of thermocouples 306 whose hot junctions are cooled by heat-exchanger 154.
Patent GB-955679-A (GB)
Title: Tobacco and method of increasing the filling capacity thereof
Inventor: DESOUZA JOHN EDWIN
IPC: A24B3/18
Filed: 1960-07-19
Abstract: The filling capacity of tobacco is increased by subjecting it to a liquid solvent from the group comprising aliphatic, cyclic and aromatic hydrocarbons, alcohols, ketones, ethers, esters, chlorinated solvents, and miscible combinations of the solvents. The tobacco to be treated has a moisture content of 10%-20% and the treatment is carried out at atmospheric pressure.  The tobacco may be allowed to stand in the solvent or the solvent may be flowed or sprayed, continuously or intermittently, through or on the tobacco, the solvent being maintained at a predetermined temperature throughout treatment.  Quantitative examples are given in which toluene, methylene chloride and n-hexane are used as solvents.  Specification 413,942, German Specification 301,439 and U.S.A. Specifications 1,577,768, 2,048,624 and 2,227,863 are referred to.
Patent GB-1434734-A (GB)
Title: Manufacture of concrete products
IPC: B28B7/30
Filed: 1972-05-30
Abstract: 1434734 Pressing concrete to remove excess water SAFETICURB Ltd 23 May 1973 [30 May 1972] 25144/72 Heading B5A [Also in Division F2] Concrete is pressed in a mould by a press member 17, to express water through the mould walls, the rate of egress of water from the concrete being different at different regions of the mould. The mould walls and bottom include perforated metal plates 10, 14 with filter paper or cloth 11, 15, and perforations 13. The press member 17 includes a perforated plate 18 and filter paper 19. Water is removed by suction, and different capacity filters ensure different egresses of water from different regions of the concrete. A drainage block (see Division F2) is formed using a collapsible core 16.
Patent GB-781079-A (GB)
Title: Improvements in or relating to means for stabilizing a helicopter flying machine
Inventor: FOCKE HENRICH CARL JOHANN
IPC: B64C27/30
Filed: 1954-08-20
Abstract: 781,079. Helicopters. MINISTERIO DA AERONUTICA. Aug. 30, 1954, No. 25146/54. Class 4. In a helicopter means responsive to or affected by the relative velocity of the helicopter and ambient air are provided to render the helicopter stable by a simultaneous variation of the collective and cyclic pitch of the rotor blades. Each blade 1 is mounted for pitch change and flapping movements on a hub 2, each blade having a pitch control arm connected by a link 41 to a swashplate 4 mounted for rocking movements about a fixed axis X offset from the centre of the swashplate. The control'arms are on the same side of the blades with respect to a plane containing the axis of the rotor and the main longitudinal axis of the blades. The swashplate has a pivotal connection 22 with a rod 23 connected at its lower end 24 with a cam 18 integral with an arm 17 for rocking movement about a fixed pivot 16 under the action of a piston and cylinder device 13, 14 subject to air pressure resulting from forward motion of the helicopter. Tilting of swashplate 4 about axis X effects simultaneous collective and cyclical by virtue of the fact that the axial movement of the centre of the swashplate produces collective pitch variation whilst tilting of the plate brings about cyclic pitch variation. The axis X being offset, the angle a (not shown) through which a rotor blade is pivoted at the side of the rotor disc remote from the axis X will be greater than the angle # (not shown) through which the rotor blade is pivoted at the diametrically opposite point of the disc. Thus the rotor blades will be collectively rotated about their longitudinal axes through the angle #, whilst the difference between the angles α and # will produce an additional cyclic pitch variation though an angle equal to α-#.
Patent GB-380246-A (GB)
Title: Improvements relating to the mounting of electrical apparatus
IPC: H04Q1/02
Filed: 1931-09-08
Abstract: 380,246. Automatic exchange equipment. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and THORNE, A. F., 8, Glenton Road, Lee, both in London. Sept. 8, 1931, No. 25195. [Class 40 (iv).] The rack, upon which switches &c. are mounted, is provided with rollers and a track to enable the rack to be rolled in a direction at right-angles to its face. The rollers 12, journalled to the rack, run on the flat track 15, the Z-shaped pieces 14, fixed to the base of the track, co-operating with the L-shaped side pieces 11, provided on each roller, to prevent sideway movement or tilting of the rack. The track is formed in two sections 15, 15a, hinged together, the portion 15a being turned upwards and held by latches 17 when the rack is in its normal position. To withdraw the rack for inspection the part 15a is lowered until it lies on the floor and the rack is drawn out by means of the handles 18. The connections to the rack are made by means of the flexible cable 9.
Patent GB-1149195-A (GB)
Title: Improvements in and relating to the coating of an object with a layer of particles
IPC: H01B3/08
Filed: 1966-06-07
Abstract: 1,149,195. Coating with glass. INTERNATIONAL BUSINESS MACHINES CORP. 7 June, 1966 [28 June, 1965], No. 25229/66. Heading C1M. [Also in Division B2] An object is coated with a layer of particles of glass by placing the particles at the bottom of a container, mounting the object over the particles, and directing a gas at the bottom of the container to form a cloud of particles around the object. The term " cloud of particles " excludes fluidized beds. The object may be of Be/Cu, it may be a chain store memory device or a semi-conductor device, e.g. of Si, and the particles may be of borosilicate glass with matched linear expansion coefficient. The particles may have size distribution: <1Á, 10%; 1-10Á, 90%. The object may be electrically heated to fuse the particles to form a film. The gas is an unreactive gas, e.g. N 2 . The size of the particles deposited may be 0À01-1Á; the film may be 1 mil thick. The apparatus may be vibrated during treatment to maintain uniform layer thickness.
Patent GB-227192-A (GB)
Title: Improvements in and relating to card indexes
IPC: B42F17/18
Filed: 1923-10-10
Abstract: 227,192. Russell, R. C. Oct. 10, 1923. Racks and the like; index cards.-In a card index having overlapping members of the type described in Specification 227,191, each member comprises in an integral structure an index card 4, and a support 5 having lateral projections 10 to move in the guidewaye in the holder; the strip 9 intermediate the parts 4, 5 forms a hinge having a slot 8 to receive the projecting tongue 11 of the next card.
Patent GB-243496-A (GB)
Title: A gas detector for miners electric safety lamps
IPC: G01N27/16
Filed: 1924-10-25
Abstract: 243,496. Gulliford, A. G. Oct. 25, 1924. Gas analysis.-In a miner's electric lamp in which a platinum &c. wire is arranged in series with the lamp so that, in the presence of combustible gas, increased glow of the wire is accompanied by decreased glow of the lamp, while with a given percentage of gas the wire fuses and extinguishes the lamp, the wire is mounted on a porcelain, fibre or other holder for ready removal; the holder may carry a number of wires. In Fig. 2, a platinum &c. fuse wire W is connected by nuts to threaded pins p<2> carried by a porcelain, fibre or other holder P. a similar porcelain &c. body P<1> being then placed on the pins and the whole being inserted, together with a gauze tube, in a cylinder C, secured laterally to the lamp top A, the split ends of the pins then engaging hollow contacts f<2>; insulated conductors lead from the contacts f<2> to contacts on an insulated lamp base S whereby the fuse wire W is arranged in series with the lamp Y. The cylinder C is provided with perforations and an inspection opening. When the wire W fuses and extinguishes the lamp Y, a screw e<1> may be adjusted to engage with strips f<4> to short-circuit the contacts f<2> and re-light the lamp. In a modification, a number of fuse wires are arranged around a rotatable holder and are. brought into use successively by rotating the holder. A frame may be attached to the cylinder C to receive various tinted glasses through which the fuse wire may be observed and by which various percentages of gas may be read.
Patent GB-193453-A (GB)
Title: Improvements in or relating to tanks or containers for petrol or other inflammable liquids on aeroplanes or other aircraft
IPC: B64D37/06
Filed: 1921-09-26
Abstract: 193,453. Penfold, H. L. Sept. 26, 1921. Tanks.-Petrol tanks for aircraft comprise a corrugated liquid container A, a layer B of yielding or resilient packing, a sheet metal casing D, and a cage C formed of diagonally-arranged wires. In a modified form, the wire cage is embedded between two layers of packing inside the casing D. The petrol and air connections may be provided with valves automatically closed against spring action by excessive pressure in the container.
Patent GB-916137-A (GB)
Title: Stabilization of halogenated aliphatic hydrocarbons
IPC: C07D303/02
Filed: 1961-07-14
Abstract: Dry-cleaning solvents which are halogenated aliphatic hydrocarbons containing up to 3 carbon atoms, such as perchloroethylene or trichloroethylene, are stabilized by the addition of stabilizing amounts of at least one alkoxyalkyl nitrile having up to 3 carbon atoms in the alkoxy and alkyl groups, and at least one epoxide containing up to 12 carbon atoms. Suitable stabilizers are specified. Other additives may also be present, such as phenols, e.g. p-cresol, alcohols, esters, amines and amides.  U.S.A. Specification 2,737,532 is referred to.ALSO:Halogenated aliphatic hydrocarbons containing up to 3 carbon atoms, such as perchloroethylene or trichloroethylene, are stabilized by the incorporation of a small amount of at least one alkoxyalkyl nitrile having up to 3 carbon atoms in the alkoxy and alkyl residues, and a small amount of at least one epoxide containing up to 12 carbon atoms.  Suitable stabilizers are specified.  Other additives may also be present, such as phenols, alcohols, esters, amines and amides.  U.S.A. Specification 2,737,532 is referred to.
Patent GB-1110665-A (GB)
Title: Harvesting apparatus
IPC: A01D43/08
Filed: 1966-06-08
Abstract: 1,110,665. Forage harvesters. DEERE & CO. 8 June, 1966 [9 June, 1964], No. 25549/66. Heading A1F. A forage-harvester, intended especially for tall row-crops such as maize, includes a crop-gathering unit 46 having a pair of forwardly-extending crop-dividers 60, the upper parts 68 of which contain endless belts for carrying the stalks rearwardly after severance by a reciprocating cutter 98, a further unit 130 being provided the purpose of which is to control the movement of the upper parts of the stalks in conjunction with a vertical roller 138 so that the stalks pass butt-end-foremost into the nip of rollers 34 which feed them to a  rotary chopper 36 whence they are delivered upwardly and rearwardly through a conduit 38. The gathering unit 46 is detachably mounted by fastenings 52 on studs 48 carried by the harvester-body which is mounted on a pair of wheels 12 and towed by a laterally-offset towbar 16 attached to a tractor (not shown) which provides a drive to the various moving parts of the harvester through a driveshaft 18. The cutter 98 comprises a triangular blade oscillated between a pair of oppositely-facing fixed blades arranged in V-formation. The stalk-control unit comprises a curved sheet-metal member 130 carried by divergent bars 116, 120. The roller 138 may be freely-rotating but is preferably driven by a shaft 140. Rollers may be mounted one on each side of the crop-passage but preferably only one is provided, on the side adjacent to the uncut crop.