baber/WOPTO huggingface dataset:
Patent GB-311922-A (GB)
Title: Improvements in drop-end fittings for couches and the like
IPC: A47C17/86
Filed: 1928-04-27
Abstract: 311,922. Kelso, R., and McErlane, D. A. April 27, 1928. Stays.-A drop end fitting for a couch, chair, etc., of the kind comprising a notched bar 1 hinged to one leaf 2 of the upper hinge, and adapted to engage a pin 5 on a link 6 pivoted at 17 to an orificed bar 7 mounted on the lower hinge 9, together with a link 10 and a spring 12, is provided with a pair of pivotally interconnected arms 13, 14 and a spring 16, tending to maintain the arms in spread position, whereby the downward motion of the drop end is cushioned. The effective length of the device can be varied by engaging the pin 17 with one or other of the holes 8.
Patent GB-611202-A (GB)
Title: Improvements in or relating to spraying machines for use in orchards and the like
IPC: A01M7/00
Filed: 1946-04-25
Abstract: 611,202. Spraying-machines. PEARCH, L. C. April 25,1946, No. 12497. [Class 69 (iii)] The frame of nozzle-carrying pipes c, d, c of an orchard spraying-machine is oscillated about a horizontal axis i and also swivels about a vertical axis formed by the attached support pipe g being swivelable in its socket h. The oscillating motion is obtained from a cam on a driven shaft rocking a, lever m pivoted at n, the degree of oscillation being variable by placing the fulcrum pin n<1> in one or other of holes in a block o with corresponding selection of one of the holes m<1> and to receive the pivot pin of the fork n. Swivelling motion is obtained by a cam groove k<1> and follower pin l which rocks the lever m along the pivot n<1> and communicates this swivelling motion to the frame at r. A combined motion may also be obtained without a cam groove by a radial link w pivoted to the tank b at y, Fig. 3, and coupled to the support pipe g through a crank-arm x.
Patent GB-1284489-A (GB)
Title: Thermoplastic polymer blends
Inventor: PRIDDLE JOHN EDWARD
IPC: C08L23/08
Filed: 1970-03-16
Abstract: 1284489 Polyamide-ethylene copolymer compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [16 March 1970] 12543/70 Headings C3P and C3R Thermoplastic polymer blends comprise (1) a polyamide and (2) a copolymer of (a) 40 to 95 weight per cent of ethylene, (b) 2 to 50 weight per cent of a R<SP>1</SP>R<SP>2</SP>N-substituted aliphatic or alicyclic ester of an α,#-unsaturated acid having 3 to 6 carbon atoms, the aliphatic or alicyclic radical in said ester containing 2 to 10 carbon atom and R<SP>1</SP> and R<SP>2</SP> being hydrogen, aliphatic or alicyclic radicals containing 1 to 10 carbon atoms or together with the N atoms forming a saturated heterocyclic ring, and (c) 0 to 55 weight per cent of an olefinically unsaturated monomer copolymerizable with (a) and (b), the sum of (b) and (c) constituting 5 to 60 weight per cent of the copolymer and the blend having a melting point or softening range not substantially lower than that of the unblended polyamide. Many polyamide precursors are listed and specified polyamides which are preferably amineended are polyhexamethylene adipamide, polypyrrolidone, polycaprolactam, polyundecanolactam, polydodecanolactam, polyhexamethylene azelaiamide, polyhexamethylene sebacamide, polyhexamethylene isophthalamide, polymetaxylylene adipamide, and hexamethylene adipamide/caprolactam, hexamethylene adipamide/isophthalamide, hexamethylene adipamide/terephthalamide, trimethylhexamethylene/hexamethylene oxamide, hexamethylene adipamide/azelaiamide and hexamethylene adipamide/azelaiamide/caprolactam copolymers. The ester may be an amino substituted alkyl or cycloalkyl ester of acrylic or methacrylic acid, optionally containing hydroxy or epoxy substituents. The comonomer (c) may be an olefin, styrene, a vinyl ether, methacrylamide, acrylonitrile, N-vinyl carbazole, vinyl chloride, vinyl acetate, vinyl formate, vinyl propionate, vinyl benzoate, methyl acrylate, ethyl acrylate or methylmethacrylate. The polyamide may be nucleated, e.g. with talc, calcium fluoride, graphite, sodium phenyl phosphinate, alumina, high melting polyamides and polytetrafluoroethylene; and may be crosslinked by incorporating diphenyl carbonate. The compositions may also contain polymers of ethylene, propylene, butadiene and/or styrene, fillers, pigments, stabilizers, molecular weight regulators, chain extenders and delustrants. Examples describe compositions comprising polyhexamethylene adipamide and (1) ethylene / dimethylaminoethyl methacrylate (DMAEMA) copolymer (2, 3 and 5) ethylene/ DMAEMA/vinyl acetate copolymer, (7) ethylene / t - butylaminoethyl methacrylate copolymer and (8) ethylene/DMAEMA/methyl methacrylate copolymer; and comprising ethylene / DMAEMA / vinyl acetate copolymers and (4) polyhexamethylene adipamide/ isophthalamide and (6) polyhexamethylene adipamide nucleated with talc.
Patent GB-607690-A (GB)
Title: An improved process for heating compositions by high-frequency alternating electric currents
IPC: B29C35/12
Filed: 1945-05-18
Abstract: Process for the heat treatment of synthetic thermoplastic and thermosetting resins, particularly polyvinyl chloride, comprises heating at a predetermined temperature by the action of a high-frequency alternating electric current a composition containing the resin mixed with organic polar material which is molten at said temperature and which comprises an organic compound having a dipole moment in excess of one Debye unit.  The organic polar material may be a single compound, e.g. a -nitronaphthalene, p-nitraniline, m-nitraniline, p-nitrophenol, or m-dinitrobenzene or a mixture, preferably eutectic, of organic compounds at least one of which has a dipole moment in excess of one Debye unit, e.g. m - dinitrobenzene and m-nitraniline, p-nitraniline and phenol, a -nitronaphthalene and naphthalene, a -nitronaphthalene and 2-nitro-4-hydroxytoluene, a -nitronaphthalene and benzophenone, a -nitronaphthalene and p-nitraniline, or may be a commercial mixture of dimethylol nitroethanes.  Lead stearate and plasticiser may be added.ALSO:Process for the heat treatment of natural or synthetic rubber comprises heating at a predetermined temperature by the action of a high frequency alternating electric current a composition containing rubber mixed with organic polar material which is molten at the said temperature and which comprises an organic compound having a dipole moment in excess of one Debye unit.  The organic polar material may be a single compound, e.g. a -nitro naphthalene, p-nitraniline, m-nitraniline, p-nitrophenol, or m-dinitrobenzene or a mixture, preferably eutectic, of organic compounds at least one of which has a dipole moment in excess of one Debye unit, e.g. m-dinitrobenzene and m-nitraniline, p-nitraniline and phenol, a -nitronaphthalene and naphthalene, a -nitronaphthalene and 2-nitro-4-hydroxytoluene, a -nitronaphthalene and benzophenone, a -nitronaphthalene and p-nitraniline, or may be a commercial mixture of dimethylol nitroethanes.  The process may be used for uniting two vulcanized rubber surfaces by coating one or both of the surfaces with a heat vulcanizable rubber composition according to the invention, pressing the surfaces together and subjecting the assembly to a high frequency alternating electric current, or for repairing a damaged rubber tyre by filling a cavity in the damaged portion with a rubber composition according to the invention and heating by a high frequency alternating electric current.
Patent GB-654186-A (GB)
Title: Improvements relating to the manufacture of roofing tiles
IPC: B28B13/04
Filed: 1948-05-07
Abstract: 654,186. Tile-turning devices. BASON, J. May 7, 1948, No. 12594. [Class 78 (i)] [Also in Group II] A mechanical tile-turning device comprises a rotary drum 7 which carries radiating rows of rollers 15 thereon, each tile delivered to the drum entering between juxtaposed rows of rollers and being supported by the latter during angular movement of the drum to a position in which the tile is able to leave the drum in inverted position. Figs. 1, 3. Tiles 6 from a tile-forming machine are fed one by one along platform 5 on to the rotary drum 7 and the latter delivers them inverted on to belt conveyer 19 which delivers them to a sanding plant. The polygonal hub 18 on which the tiles rest during rotary movement is rubber covered to prevent damage. The rollers 15 may be supported on one flange only, or be smaller in length than their spindles 14, so that they may clear the lugs of the tiles. Also platform 5 may have at its end two rollers in a downwardly-inclined plane to feed the tiles down to the rollers of the drum 7.
Patent GB-103783-A (GB)
Title: Improvements in Furnace Grates.
Inventor: FORRESTER HAROLD JOSEPH CHARLE
IPC: F23H9/08
Filed: 1916-09-06
Abstract: 103,783. Forrester, H. J. C., (Hansell Grate Co.). Sept. 6, 1916. Fire-bars and grates.-In a furnace grate comprising sections or " fingers " 29 mounted on rocking bearer bars 23, means are provided for allowing circulation of cooling-air. The grate frame consists of side bars 12 spaced apart by perforated end plates resting on ledges on the side bars. Pins on the undersides of the end plates engage corresponding holes in the ledges, which are made slightly larger than the pins to allow for expansion and contraction. The grate fingers embrace the bearer bars 23, as shown in Fig. 3, and circulation of air for cooling is allowed by hollowing the depending arms of the fingers at 31, and by grooves 26, 28 in the bearers. Vertical notches 33 are formed also in the depending arms, and webs 32 are provided to deflect the air on to the bars 23. The side grate fingers have lips 34, Fig. 7, overhanging the side bars 12, and recesses 35 are provided to increase the heatradiating surface. The tops of the fingers are grooved to hold ashes. A perforated rocking plate may be mounted between two sets of fingers.
Patent GB-1000643-A (GB)
Title: Improvements in or relating to sacks
Inventor: PLOWMAN RAYMOND WILLIAM
IPC: B65D30/18
Filed: 1963-03-29
Abstract: 1,000,643. Making sacks. METAL BOX CO. Ltd. Feb. 27, 1964 [March 29, 1963], No. 12634/63. Heading B8K. The two end edges 4 (Fig. 11) of a sack are of less length than the distance 3 between its gussetted sides 1, 2 and are joined to the side edges by corner edges and flaps F so that when the sack is filled it acquires a block shape to facilitate stacking. The sack is made of thermoplastic material or flexible material coated on its inner surface with thermoplastic material, preferably seamless tubing, and heat sealed along the portions 8a, 8b, 9a, 12a, 12b, 15b and 16a. A filling valve may be incorporated in the side 10. The gusset portions 1a 1b, 2a and 2b may be omitted and the top and bottom of the sack may terminate at the line 17. Specification 946,617 is referred to.
Patent GB-359911-A (GB)
Title: Improvements in and relating to pasting accumulator plates
IPC: H01M4/20
Filed: 1930-04-24
Abstract: Apparatus for pasting accumulator plates by centrifugal action is so constructed that the rotating member carrying the plates is started very rapidly.  By this means the time during which the speed of rotation is insufficient for efficient pasting is reduced.  Rapid starting may be effected by the use of a motor having a high starting torque or by means of a flywheel which is first brought to the required speed and then coupled by an electro-magnetic clutch to the rotating part carrying the plates. Another method consists in the use of a starting device comprising a ratchet wheel on the machine shaft driven by the rod of a piston actuated by compressed air.  The parts of the machine carrying the plates are made of light metal such as aluminium protected by a coating of lead.
Patent GB-434222-A (GB)
Title: Improvements in and relating to sealing compositions for containers such as metal cans
IPC: C09J195/00
Filed: 1934-04-27
Abstract: 434,222. Sealing cans and jars. CROSSE & BLACKWELL, Ltd., CLAYTON, W., and JOHNSON, R. I., 20, Soho Square, London. April 27, 1934, No. 12717. [Class 125 (iii)] Cans and jars are sealed by applying an aqueous dispersion of a bituminous substance. Bitumen, asphalt or pitch may be used dispersed in an alkaline aqueous solution. Colophony, oils, fats, waxes, rubber or rubber substitutes are added as required. The bituminous substance may be hardened before or after emulsification.
Patent GB-1180586-A (GB)
Title: Method and apparatus for Controlling Sterilizers
IPC: A61L2/00
Filed: 1967-03-17
Abstract: 1,180,586. Sterilizer control method and means. SYBRON CORP. 17 March, 1967 [23 March, 1966], No. 12725/67. Heading A5G. Apparatus for controlling a steam sterilizer comprises a load simulator device consisting of a "static chamber" 32, closed at one end and communicating with the sterilization chamber 10 at the other, and a "dynamic chamber" 22 open at both ends so that the atmosphere in the sterilizer may pass continuously through it, e.g. with the aid of the pump 14. Means 36 are provided for sensing the temperature difference between the atmosphere at the closed end of the static chamber and that passing through the dynamic chamber, the magnitude of the difference being used to actuate the sterilizer programme by either causing steam to be admitted whilst the chamber is exhausted if the temperature difference exceeds a predetermined value or by causing the programme to move on to the sterilizing step if the difference is below that value. In the embodiment shown, the means 36 comprises a biased electrical contact which is actuated by making use of the difference in thermal expansion of the walls of the two tubular chambers so that the contact is closed when the tubes have undergone more nearly equal expansion. An alternative sensing system is described (see Fig. 2, not shown) which was bimetal tubes having alternate sections of material of different coefficients of expansion.
Patent GB-1105054-A (GB)
Title: Nozzle setting devices for multi-nozzle flame bevelling machines
Inventor: BRADLEY JOHN RAMSAY
IPC: B23K37/02
Filed: 1965-03-25
Abstract: 1,105,054. Cutting by fusion. BRITISH OXYGEN CO. Ltd. 7 March, 1966 [25 March, 1965], No. 12734/65. Heading B3V. A multi-nozzle flame bevelling machine has a nozzle setting device comprising a removable jig assembly 22, 24 having a datum surface 52 corresponding to the surface of the plate 20 to be bevelled and means such as 39 for locating each nozzle 36, 38, 40 relatively to the datum surface. In one embodiment the device consists of three plates 22, 24, (26), Fig. 2 (not shown), secured together by bolts (28), (30). Each plate has a bore (35), (37), 39 for receiving the appropriate nozzle. The nozzles are then secured to the cutting head with the plate riding roller 54 resting on surface 52. Thereafter the bolts (28), (30) are withdrawn to permit removal of the setting device. Dummy nozzles may be used in the device to set-up nozzle holders on the cutting head. In another embodiment, Figs. 4-11 (not shown), the nozzle holders have projections such as (80), (82), which engage in apertures such as (96), (98) of jig plates (88), (90) which have datum surfaces (112), (114). Alternatively the projections may be provided on the jig plates and the apertures on the nozzle holders. The machine may be used for making a single bevel cut.
Patent GB-441323-A (GB)
Title: An improved ignition switch for motor vehicles
IPC: B60R25/04
Filed: 1935-04-30
Abstract: 441,323. Secret contact-combination switches. TARR, R. A., 45, New Church Street, Cape Town, South Africa. April 30, 1935, No. 12840. Convention date, May 15, 1934. [Class 38 (v)] A combination switch which may be used in the ignition circuits of motor vehicles comprises a series of concentric rings of fibre or like insulating material independently rotatable with respect to each other and to an outer stationary ring and to a centre pin, the rotatable rings being provided with spring-pressed contacts which are adapted to be brought into radial alignment to establish connection between contacts on the centre pin and outer ring. As shown in Figs. 1 and 2 a series of rotatable insulating rings 6 .. 8 are mounted between an outer fixed ring 4 and a centre pin terminal 14. Each of the rotatable rings carries a radial contact comprising a spring-pressed ball contact 9 .. 11 and when as shown, these contacts are brought into radial alignment with a contact 18 within the fixed outer ring a circuit to the central pin terminal is completed. Each ring bears an operating knob 16, the outer ring having the letters of the alphabet on its face and the inner rings indicating marks to enable the combination to be set up and the circuit completed. The operating knobs 16 terminate at their inner ends in spring-pressed conicalended plungers 15 which co-operate with corresponding recesses in the base-plate to retain the rings in position.
Patent GB-846457-A (GB)
Title: Improvements in or relating to filters for liquids
IPC: B01D29/19
Filed: 1959-04-15
Abstract: 846,457. Filters. PILLIN Ltd., J. B., and SPINKS, S. A. E. April 15, 1959, No. 12852/59. Class 46. A core 10 having grooves 11 with closed bottoms extending from one end to the other is helically grooved at 14 from the right hand end almost to the left hand end. A wire spring 15 is then wound upon it from the right, and the left hand end of the assemblage dipped in solder. Thereafter a cap 16 is soldered, welded or brazed to the right hand end. The assemblage is push-fitted into a delivery connection 18 and a casing 20 having an inlet connection 21 is screwed to the member 18.
Patent GB-984947-A (GB)
Title: Improvements in couplings for hoses
Inventor: BROOKES ERIC CLIVE
IPC: F16L15/04
Filed: 1963-04-02
Abstract: 984,947. Pipe couplings. SINGLEHURST ENGINEERING Ltd. Jan. 15, 1964 [April 2, 1963], No. 12930/63. Heading F2G. A disconnectible screw coupling comprises a female end fitting 1 having an externally screw-threaded head 2 extending from an annular shoulder 3 and counterbored from its outer end to form a parallel sided socket 4, and a male end fitting 5 having a parallel sided head 6 fitting the socket, together with a sealing ring 7 housed in a peripheral groove 8 in either the head 6 or socket 4 for sealing engagement with the socket 4 or head 6 respectively, and a union nut 21 rotatably carried by the male end fitting for screwing on to the female end fitting, the length of the union nut being such that it can be screwed up tight to the annular shoulder 3 without causing any binding between the heads of the male and female members. A hose is held between two sleeves 11, 12 and 15, 16 of each member swaged together or provided with screw threads to render the fittings re-usable. A locking ring 23 e.g. of nylon may be provided on the female member to engage the end of the union nut, or it may be situated in a peripheral groove interrupting the threads of the union nut. Preferably the mouth of socket 4 is flared, and the outside end of head 6 is chamfered.
Patent GB-563280-A (GB)
Title: An improved process for the isomerisation of normal paraffins
IPC: C07C5/27
Filed: 1942-09-15
Abstract: The isomerization of n-paraffins having at least four carbon atoms is effected by contact under isomerizing conditions with a catalyst comprising SO3, and either HF in molar excess or BF3 or both. Hydrogen may also be present.  In place of SO3 and HF, FHSO3 with additional HF may be used.  The molar ratio of HF to SO3 may be up to 4 : 1 and is preferably between 1.5 and 2.5 : 1 and the amount of catalyst may be 5-120, preferably 15-75 per cent by volume of the hydrocarbon present.  Where BF3 is present also, the amount of catalyst may be 10-150, preferably 25-100 per cent of the hydrocarbon and, where the catalyst is SO3 and BF3, the amount is 10-200, preferably 20-125 per cent by weight of the hydrocarbon. Paraffins from n-butane up to n-octane and higher or mixtures thereof may be used, also field butanes, straight run naphthas, and simple branched chain paraffins which become more highly branched.  Paraffins of at least six carbon atoms tend to give both higher and lower products; thus, n-hexane yields isobutane and higher branched chain paraffins. It is desirable to reduce the content of olefines and aromatics. Temperatures are generally 40-350, preferably 75-200 DEG  F., 60-150 DEG  F. being used for n-pentane, and contact times 1/2 -20, preferably 1-10 hours.  Where BF3 is used, the quantity may be equivalent to an increase in pressure of up to 500 lbs./sq. in. Additional hydrogen pressure of up to 500 lbs./sq. in. or more may be applied or gas such as nitrogen, carbon and sulphur dioxides used, preferably to maintain a liquid phase.  Continuous or batch operation may be employed and unreacted hydrocarbons, catalysts, and by-products may be returned to the isomerizer after separation of the desired iso-paraffins.  Examples describe the isomerization of pentane with SO3 and BF3 at 75 DEG  F. and 200 lbs./sq. in., and with HF and SO3 in various molar ratios between 1 : 1 and 2 : 1 together with BF3 and, in some case, free hydrogen, temperatures ranging between 80 and 125 DEG  F. and total pressures between 100 and 600 lbs./sq. in. Specification 551,961 is referred to.
Patent GB-1263432-A (GB)
Title: Improvements in and relating to container ships
IPC: B63B25/00
Filed: 1970-03-18
Abstract: 1,263,432. Container ships. MITSUI SHIPBUILDING & ENG. CO. Ltd. 18 March, 1970 [19 March, 1969], No. 12994/70. Heading B7A. A container ship's hold is divided into container cells by vertical guides 17, a removable support member 14 supported by beams 13 and brackets 15 being provided in each cell at a height such that the bottom container in the cell only supports the weight of five containers above it, additional containers in the cell being supported by member 14. Blocks 16 on member 14 are for engagement by crane hooks for inserting the member into the cell, and also for positioning a container supported on the member. In another embodiment, Fig. 7 to 10 (not shown), member 14 comprises a plate extending across a plurality of cells.
Patent GB-592685-A (GB)
Title: Improvements in and relating to small hand pumps or sprays
IPC: B05B11/00
Filed: 1945-05-24
Abstract: 5 9 2 , 6 8 5. Reciprocating pumps. GAME, C. May 24, 1345, No. 13005. [Class 102 (i)] A small hand pump, adapted to be fitted to the neck of a container, comprises a pump barrel a carrying at its upper end a barrel-end member g through which the pump tube c passes and to which a metal cap h is secured by fusion of liquid metal, e.g., welding or brazing, as at j'. The pump tube c carries a reciprocating atomizer m at its upper end and a piston b at its lower end. Specification 592,684 is referred to.