baber/WOPTO huggingface dataset:
Patent GB-897694-A (GB)
Title: Process for the production of 2, 3, 6-trichlorobenzoic acid
IPC: C07C45/43
Filed: 1960-06-20
Abstract: 2 : 3 : 6-Trichlorobenzoic acid is obtained in a pure form or as the major component of a mixture with other isomeric trichlorobenzoic acids by a process wherein (1) a mixture of trichlorotoluenes which contains 2 : 3 : 6-trichlorotoluene is side chain chlorinated to such a degree that the 2 : 3 : 6-isomer is present as the 2 : 3 : 6-trichlorobenzal chloride, but the other isomers are partially or entirely present as trichlorobenzotrichlorides, (2) the chlorination mixture is saponified whereby 2 : 3 : 6-trichlorobenzaldehyde and perhaps also other isomeric trichlorobenzaldehydes and trichlorobenzoic acids are formed, (3) the trichlorobenzoic acids are removed from the saponification mixture and (4) the 2 : 3 : 6-trichlorobenzaldehyde or trichlorobenzaldehydes which remain are oxidized to obtain 2 : 3 : 6-trichlorobenzoic acid in pure form or admixed with minor amounts of other trichlorobenzoic acids.  In examples a mixture of trichlorotoluenes is chlorinated by adding phosphorus trichloride thereto and passing in chlorine while heating and irradiating with light.  The product is saponified with a mixture of concentrated sulphuric acid and ferric chloride, the 2 : 3 : 6-trichlorobenzaldehyde and trichlorobenzoic acids being precipitated by dilution with water. the trichlorobenzoic acids are removed by treatment with alkali and the aldehyde residue is oxidised with manganese dioxide and sulphuric acid, nitric acid, hydrogen peroxide or sodium hypochlorite to give 2 : 3 : 6-trichlorobenzoic acid. Specification 796,361 is referred to.
Patent GB-1430575-A (GB)
Title: Cutting tools for machine tools
IPC: B23B29/24
Filed: 1972-05-10
Abstract: 1430575 Cutting tools LUCAS ELECTRICAL CO Ltd 8 May 1973 [10 May 1972] 21688/72 Headings B3T and B3B A cutting tool having first and second cutting edges 23a, 27a formed on respective separate inserts 23, 27 mounted in respective guideways 22, 26, each cutting edge being formed at the intersection of a shaped first surface 23c, 27c and a second surface 23b, 27b respectively, each insert having a constant cross-sectional shape throughout a predetermined length thereof and the cutting edge being renewable within said predetermined length by grinding the second surface 23b, 27b. The inserts are movable along their respective guideways which are orientated so as to diverge from one another to provide an appropriate clearance angle between the shaped surfaces and the workpiece when in use. In the embodiment described the insert 27 is mounted in a carrier 13 which is adjustably secured to the main holder 11 and to which the carrier 16 of the insert 23 is secured. The holder 11 is provided with T-bolts 12 for securing it to a machine tool.
Patent GB-811180-A (GB)
Title: Thermally actuated pump
Inventor: KLEEN NILS ERLAND AF
IPC: F04F1/04
Filed: 1956-07-13
Abstract: 811,180. Raising liquids by heating in pipes. JET-HEET, Inc. July 13, 1956, No. 21700/56. Class 102(2). In a pump in which liquid is vaporised in a chamber 10 and condensed in a chamber 22 the latter is cooled by a heat exchanger through which the liquid being drawn into the pump passes. The heat exchanger may comprise as shown a jacket 28 or a pipe passing through the condenser.
Patent GB-1429997-A (GB)
Title: Fuse element
IPC: H01L25/03
Filed: 1973-05-07
Abstract: 1429997 Fuse elements BBC BROWN BOVERI & CO Ltd 7 May 1973 [9 May 1972] 21705/73 Heading H2G A fuse element Si, for use in diode and thyristor columns or stacks is clamped under pressure between cooling ducts K such that a cooling duct K lies between the metallic contact surfaces Kf of the fuse element and a semi-conductor element H. The fuse element comprises an insulating ring I s  at the axis of which is located the fusible portion S of, e.g. silver, the annular space therebetween being filled with quartz Q. Cooling water circulates in ducts K. A failure indicator is provided on the insulator. The contact surfaces K f  may be alternatively constructed as coolers. Bores may be provided for centring pins to ensure concentric positioning of the elements.
Patent GB-405316-A (GB)
Title: An improved device for aerating a liquid after it has passed through the nozzle of a tap
IPC: E03C1/084
Filed: 1932-08-03
Abstract: 405,316. Aerating beer &c. SOLOMON, L., 55, High Street, Plaistow, London. Aug. 3, 1932, Nos. 21752 and 24024. [Class 14 (i).] Aerating devices adapted to be attached to the nozzles of taps, especially to the nozzles of beer taps and beer engines by means of rubber tubing consist of a cylinder 1 having a lower hollow portion 3 in which pegs 8 are arranged transversely for the purpose of breaking up the liquid and an upper relatively solid portion 2 having passages extending vertically therethrough to allow the liquid to pass, and other passages 5 leading to side passages 6 for the admission of air to the stream of liquid. Instead of two passages 5, 6 at right angles to one another, a single oblique passage may serve. A valve device comprising a piston 11 and a light spring 12 is provided to prevent drip when the tap is turned off, the piston 11 bearing against a removable cap 13, so as normally to close the aperture 14 for the admission of liquid. An alternative embodiment is described in which the arrangement of the drip-preventing device is somewhat different and another embodiment in which the drippreventing device is omitted.
Patent GB-206900-A (GB)
Title: Improvements in and relating to tractors
IPC: B60D1/44
Filed: 1922-08-10
Abstract: 206,900. Imray, O. Y., (Housser, L.). Aug. 10, 1922. Couplings for road vehicles and trains.-In a coupling of the type in which a member is adjustable laterally to alter the relative position of tractor and trailer, the tractor 1 carries a framework including two transverse rotatable track members 7. 8, while the coupling strap 9, to which the trailer is attached, carries rollers 11, 12, 13 adapted to engage the track members so as to take the weight and the pull of the coupling. An operating handle 16 is r.gidly secured to the strap and engages a slottec. transverse member 15 of the frame.
Patent GB-422410-A (GB)
Title: Improvements in or relating to track-laying tractors
IPC: B62D55/10
Filed: 1933-07-11
Abstract: 422,410. Endless - track vehicles. HILL, W. L., 43, Preston Road, Wembley Park, Middlesex. July 11, 1933, No. 21928 /32. [Class 79 (i)] In a tractor of the kind in which the centre of gravity of the tractor is at or near the forward end of the length of track in contact with the ground the track depends for its tension on its own resilience. A track of this kind is described in Specification 269,644, [Class 79 (i)]. In the construction shown the engine and gear box are disposed forwardly and are housed in a bonnet 14, the arrangement being such that the centre of gravity of the tractor lies near the axle of the front sprockets 10 and within the perimeter of these sprockets. The front sprockets are driven from the engine or gear shaft 15 through gearing 16-18. A draw-bar may be attached to the tractor by means of a hitch bar 25 attached to frame members 26 and having a series of holes so that the draw-bar can be connected at different heights. For heavy work the draw-bar would be attached low down, the point of attachment being so chosen for different draw-bar loads that the resultant of the draw-bar pull and the weight of the tractor meets the ground at the mid-point of the tractor wheel-base, thus giving an even distribution of the load on the track.
Patent GB-518309-A (GB)
Title: Improvements in or relating to synthetic metallic enamels
IPC: C09D5/10
Filed: 1939-07-29
Abstract: 518,309. Coating compositions. BERGER & SONS, Ltd., L. (Sherwin-Williams Co.).' July 29, 1939, No. 22057. [Class 2 (iii)] Baking enamels comprise a metal powder, pigment volatile solvent material, alkyd resin and urea-aldehyde resin compatible with the alkyd resin, the urea-aldehyde resin being from 10 to 90 per cent. of the total resin components. In an example, an enamel is prepared from aluminium bronze, titanium dioxide, antimony oxide, lamp black, monastral blue, calcium carbonate, urea-formaldehyde resin, alkyd resin, manganese naphthenate and a solvent mixture containing solvent naphtha, turpentine, mineral spirits, xylol, naphtha, hydrogenated naphtha, and butyl alcohol.
Patent GB-934520-A (GB)
Title: Chance apparatus
IPC: A63F5/04
Filed: 1961-06-19
Abstract: 934,520. Chance apparatus. C. WEBSTER. Sept. 28, 1961 [June 19, 1961], No. 22076/61. Class 132 (2). Chance apparatus comprises two inscribed discs 5 rotatably mounted within a casing 2, and spun by means of a spring-controlled plunger 8 having projections 13 thereon, the discs being gradually brought to rest by spring arms 14. The spinning of the discs takes place during the return movement of the plunger 8, the projections 13 riding over the discs when the plunger is depressed. Protuberances 16 in the spring arms engage in notches 7 formed in the periphery of each disc to finally locate the latter so that one of the characters inscribed thereon registers with a window in the casing.
Patent GB-203497-A (GB)
Title: Improvements in the process of regenerating base-exchanging compounds after use
IPC: C01B33/46
Filed: 1922-08-14
Abstract: 203,497. Hilditch, T. P., Wheaton, H. J., and Crosfield & Sons, Ltd., J. Aug. 14, 1922. Purifying liquids.-In a process for regenerating base-exchanging compounds used for softening water, the regenerating solution is divided into, and employed in, portions, the preliminary portion or portions being solution which has been partly exhausted in a previous regeneration, and the final portion consisting of fresh unused solution, which after use is carried off and employed as tha first portion in a subsequent regeneration. Fig. 1 shows one form of apparatus for carrying out the process, the water to be softened being admitted from the pipe A and distributor a<2> to the vessel B, and being discharged from the pipes D, E after passage through the base-exchanging compound C. When regenerating becomes necessary, partially exhausted salt solution contained in the tank F is passed upwardly through the mass C, displacing water to waste through the pipe H. A fresh salt solution is now prepared in the tank F and is run into the vessel B, displacing the first portion to waste. Finally the partially exhausted solution is forced back to the tank F for re-use by the pressure of untreated water, and the mass C is washed until water flowing to waste through the pipe G is free of salt, when the apparatus is again ready for softening purposes. Two tanks F, one for partially exhausted solution, and one for fresh salt solution, may be employed, and when the solution is to be further subdivided, additional tanks F may be provided. Specifications 4188/13, 120,293, and 120,294 are referred to.
Patent GB-247616-A (GB)
Title: Improved interfitting blocks and the like for roads, pavements, and the like
IPC: E01C5/18
Filed: 1924-09-19
Abstract: 247,616. Cowper, J. S., and Cowper, E. O. Sept. 19, 1924. Paving-blocks. - Reversible paving-blocks of rubber or composite rubber are provided with interfitting parts of rounded rib and rounded groove formation, adapted to produce a bonding action between flat abutting surfaces of adjacent blocks. Fig. 1 shows one construction in which each block has two rounded ribs b on one side and one rib at one end, the other side and end being formed with corresponding grooves c. These ribs and grooves may be vertical, as shown, or may be oblique. They may also be tapered. In another form, the grooves and ribs are larger, and each side and end has only one rib or recess. Fig. 3 shows another form in which the rib band groove c are horizontal. Fig. 4 shows a construction in which a series of blocks interfit with a long strip d. Fig. 5 shows a construction in which the blocks are hooked together, each being formed with upstanding hooked parts b along one side and end and with depending hooked parts on the other side and end. Fig. 6 shows a tapered pin e used for inserting between blocks to force them together. The blocks may be made in layers of different grades of rubber. Fig. 7 shows a block in inverted plan to illustrate grooves f provided for drainage. These blocks may be laid on concrete, cement, or like slabs, or upon wooden sleepers provided with pads or lengths of felt, rubber, or suitable materials, to prevent displacement. The sleepers may be fitted with rings to enable sections of the road surface to be lifted bodily.
Patent GB-258275-A (GB)
Title: An improved filter
IPC: B01D29/00
Filed: 1926-09-10
Abstract: 258,275. Noelting, R. Federmann-, Sept. 10, 1925, [Convention date]. Filters with loose filtering materitals.-A filter for the treat ment of liquid fuel for internal combustion engines but applic able for the treatment of fluids generally comprises a layer I of spherical or annular ele ments of glass or other suit able material. The layer rest: on a grid H in a casing formec by a transparent wall E witl end pieces A, C. The parts are held together by a nut I on a central tube B screwing into a drain tube D which pierces the lower end pipe C. The fluid is supplied at the upper end, enters the tube B through an orifice O, passes down the tube, and then filters upwards through the layer F to an outlet Q. For cleans. ing, a plug K is raised by means of a rod J passing down the tube B and there is a more rapid reverse flow through the layer F, the impurities being discharged through the tube D. The Specification as open to inspection under Sect. 91 (3) (a) refers to elements for the filtering layer made of porcelain or metal and of spiral shape. This subject-matter does not appear in the Specification as accepted.
Patent GB-485187-A (GB)
Title: Improved window-adjusting mechanism
IPC: E05F11/42
Filed: 1936-08-13
Abstract: 485,187. Rack-and-pinion gearing. DUTFIELD, A. E., RAWLINGS, E. J., and RAWLINGS' MANUFACTURING CO., Ltd. Aug. 13, 1936, No. 22351. [Class 80 (i)] [Also in Group X] Relates to regulating mechanism for sliding windows of the kind in which pinions 13 on a transverse shaft 5 engage with inclined racks 12 secured to the sloping edges of the window. According to the invention, the rack teeth are arranged at right-angles to the longitudinal axis of the rack and the teeth of the pinion are set at the requisite skew for meshing with the rack. Specification 439,837, [Group X], is referred to.
Patent GB-496150-A (GB)
Title: Improvements relating to the production of seamless tubes
IPC: B21C45/00
Filed: 1937-08-14
Abstract: 496,150. Making tubes. DEMAG AKT.- GES. Aug. 14, 1937, No. 22366. Convention date, Aug. 15, 1936. [Class 83 (iv)] Rolling ; cupping.-After pushing a tube billet on a mandrel through ring dies 4 or rolls, the return stroke of the rack 1 acts both to free the end 9 of the mandrel rod 6 from the recess 10 of the rack 1 whereby the fork 5 engages the collar 8 of the mandrel rod to strip the tube against a divided ring 14, the mandrel and rod so resting in the fork 5 and retained by the guide where it can be removed and replaced by a fresh cool mandrel and rod. The last die ring or roll pass may be oval to partly free the tube from the mandrel.
Patent GB-744051-A (GB)
Title: Improvements in or relating to cellulose derivative or vinyl resin plastic compositions
IPC: C08K5/1515
Filed: 1952-09-05
Abstract: A moulding composition of good flame-resistance and heat-stability comprises a cellulose derivative or a vinyl resin, a halogenated aliphatic phosphoric acid ester and a resinous, non-volatile, compatible epoxide resulting from the condensation of epichlorohydrin with bis-(4-hydroxy-phenyl)-2,2-propane and containing at least two epoxy groups.  Specified phosphoric acid esters are trichloroethyl phosphate, trichlorobutyl phosphate and tribromomethyl phosphate. Specified cellulose derivatives are cellulose acetate, cellulose acetate-butyrate and ethyl cellulose, and specified vinyl resins are polyvinyl chloride and polyvinyl acetate.  The composition may contain additional plasticizers, e.g. dimethyl-, diethyl-, diallyl- and dimethoxyethyl-phthalates, triethyl and triphenyl phosphates, triacetin, camphor, triethylene glycol diacetate, triethyl citrate and phenyl salicylate.
Patent GB-810581-A (GB)
Title: A rear view mirror for vehicles
IPC: B60R1/06
Filed: 1955-08-04
Abstract: 810,581. Vehicle mirrors. PRUTZMAN, P. E. Aug. 4, 1955, No. 22495/55. Class 103(2) In a rear view mirror assembly, a casing for supporting the mirror at the side of a vehicle comprises a trough-shaped longitudinal member 10, Figs. 3 and 6, and two end plates 11 forming a chamber with an open side which is closed by the mirror 18. The mirror is held in place by means of a rim member 14 and resilient metal lugs 19 which are pressed out from the sides 13 of the trough-member 10 to engage the back of a mirror. A rib 12, Fig. 7, formed on each of the ribs 13 of the trough member and a projection 16, Fig. 3, is formed on each of the end members 11, to prevent water penetrating the joint between the sides of the trough member 10 and the sides of the rim member 14. The trough member contains electric heating elements 26, 27 and a heat reflecting element 24 backed by a layer 25 of insulating material, as described in Specification 810;582. Specification 810,583 also is referred to.
Patent GB-222485-A (GB)
IPC: G03C1/76
Filed: 1924-09-24
Abstract: 222,485. Spõlti, F. Sept. 24, 1923, [Convention date]. Ornamental photographs. - A method of producing patterns, pictures, &c. on webs or bands of material such as paper, fabrics, leather, &c. consists in producing a series of negatives in the form of an endless band, sensitizing the roll of material to be printed, and photographically copying the negative band continuously upon the sensitized roll. The negatives may be identical or different, or taken together may form a serial pattern. Reproductions of various colours may be produced by selecting the colour of the material or of the sensitizing emulsion, by toning, or by choice of developer. The process may be used for manufacturing fancy pocket-handkerchiefs in webs, and wall-coverings. Reference has been directed by the Comptroller to Specifications 3718/81 and 13377/95.
Patent GB-765232-A (GB)
Title: Method and means for producing finned sheet metal members
IPC: B21D53/02
Filed: 1954-08-04
Abstract: <PICT:0765232/III/1> <PICT:0765232/III/2> <PICT:0765232/III/3> An evaporator basket, or boiler, for a vapour compression evaporator system for sea water is made from metal strip having V shaped corrugations 12 with arcuate walls 20, Fig. 7, by compressing the corrugations longitudinally of the strip, bending the strip, or a plurality of lengths thereof welded end to end, into the form of a cylinder, Figs. 3, 9, welding the top and bottom open ends of the fins or corrugations 12 closed at 14, and closing the top of the cylinder by a disc 16 and the bottom by a ring 18 welded to the radially inner ends of the fins.
Patent GB-836642-A (GB)
Title: Polymerisation catalysts
Inventor: MULLEY RICHARD DEREK
IPC: C07F7/28
Filed: 1957-07-17
Abstract: An ethylene polymerization catalyst comprises a mixture of a titanium/zinc alloy and an alkyl halide of formula RX or an alkylene halide of formula X(CH2)nX where R is an alkyl or cycloalkyl group, X is chlorine, bromine or iodine and n is an interger not less than 3. The atomic ratio of the halogen to the zinc is preferably between 0.5 and 5 and the alloy and halide are preferably mixed and heated together (preferred 50-100 DEG  C.) and then milled-preferably ball-milled in the presence of an inert hydrocarbon dispersing medium.ALSO:Ethylene is polymerized using as catlyst a mixture of a titanium/zinc alloy and an alkyl halide or an alkylene halide. The alkyl halide has the formula RX and the alkylene halide X(CH2)nX where R is an alkyl or cyclo alkyl group, X is chlorine, bromine or iodine and n is an integer not less than 3.  The polymerization may be carried out at 50 DEG  to 150 DEG  C. in an inert dispersing medium.
Patent GB-905313-A (GB)
Title: Improvements in or relating to sewing machines
Filed: 1960-06-29
Abstract: 905,313. Sewing-machines. NECCHI S.p.A. June 29, 1960 [July 7, 1959], No. 22787/60. Class 112. Feed by clamps (Figs. 2, 6).-A sewing- machine has a work-carrying frame 31 disposed above the bed-plate 2 carried on carriages 27, 29 disposed below the bed for movement in different directions. The carriage 27 is slidable in one direction on a guide carried on the second, lower, carriage 29 which is arranged to slide in a direction at right-angles to that of carriage 27, on a guide secured beneath the bed. The carriage 27 has a peg 24 which is engaged by the forked ends of two levers 18, 19, pivoted at 20, 21, respectively, in the bed. The levers are oscillated through members 10<1>, 11<1>, from followers 10, 11 engaging interchangeable cams 8, 9 on a shaft 5 rotated by gearing from the arm shaft 4. Needles moving laterally.-A further cam 58 on the shaft 5 is provided with a follower 59 controlling the lateral movements of the needle. Frames.-The aperture 25 may be closed by a plate when the frame 31 is not in use, when fabric sewn is engaged by the usual feed dog. An aperture in the arm permits removal of the cams. Starting and stopping clutches (Figs. 6, 7).- The driving pulley 39 is loose on the arm shaft 4. A spring 41 is wound around a surface 40 on the pulley and has one end secured to the hand wheel 43, the other being secured to a ring 44 rotatable between a rigid stop 46 and a rubber stop 47 both disposed on the hand wheel. Normally, the rotation of the pulley tightens the spring and the hand wheel and shaft are driven. A cam 37 on the shaft 5 has a follower 38 engaging a lever 50 which is moved by the cam after one rotation of the shaft 5 and hence a cycle of movement of the frame 31, to abut a projection 53 on the ring 44, expand the spring and disconnect the drive with the needle in the raised position. A cam 52 may be manually rotated to move the end 37<1> of the follower curving from the cam to prevent this automatic stoppage.
Patent GB-842233-A (GB)
Title: Insulating connection means for piping
IPC: F16L25/03
Filed: 1958-07-16
Abstract: 842,233. Pipe joints. BAGNULO, L. July 16, 1958 [July 27, 1957], No. 22791/58. Class 99(1). A joint for fluidly connecting and electrically insulating metal pipes 10, 11 includes an annular member 19 secured in an outer tubular member 13 and an annular flange 12 on the pipe 11 the diameter of that flange being greater than the inner diameter of the member 19 and less than the inner diameter of the member 13 ; the outer diameter of the pipe is less than the inner diameter of the member 19, and the flange 12 is axially spaced from that member. Insulating material in the form of an annular element 24 is located in abutting relationship between the member 19 and the flange 12. As shown in Fig. 1, the member 13 is secured to the pipe 10 which has an annular flange 15 and is screw-threaded internally for receiving the member 19 ; alternatively the latter is welded in place. An annular insulating element 23 is disposed between the flanges 12, 15 and insulating material 17 fills the space between the flange 12 and member 13. A mass 22 of thermoplastic material, e.g. resin, asphalt or a polyester, is poured into the space between the pipe 11 and member 13 and allowed to set. In modifications, (a) the member 13 has an internally screw-thread axial extension for the connection thereto of a pipe, and the pipe 11 is replaced by an internally, screw-threaded, tubular part for engagement with a pipe, (b) the member 13 is in the form of a saddlepiece for the connection of a branch pipe to a main pipe and is secured to the latter by U-bolts, and (c) the member 13 is formed with a radial flange for connection to the wall of a tank.