baber/WOPTO huggingface dataset:
Patent GB-707006-A (GB)
Title: Improvements in or relating to phenol production
IPC: C07C37/08
Filed: 1951-10-19
Abstract: Phenols are produced by treating a primary hydroperoxide, containing an aromatic hydrocarbon nucleus having attached to the ring at least one hydroperoxymethyl group, with an acidic condensation catalyst. The reaction may be carried out in an inert organic solvent or the hydroperoxide may be in the vapour phase, preferably under anhydrous conditions.  Formaldehyde is formed as a by-product of the decomposition.  Preferred hydroperoxides are the benzyl, p-methylbenzyl, p-isopropylbenzyl and beta-naphthyl methyl hydroperoxides or xylylene dihydroperoxide giving as products phenol, p-cresol, p-isopropyl phenol, beta-naphthol or hydroquinone.  The acidic condensation catalysts include ferric chloride, boron trifluoride, the activated earths, the chloroacetic acids, picric acid, sulphonic acids, sulphonated phenol-formaldehyde and styrene resins; phosphorus chlorides; silicates, silica gel and bauxite which have an acidic surface activity, Friedel-Crafts catalysts and organic and inorganic acids in general.  In examples: (1) p-xylylene is treated with oxygen and the resulting p-methylbenzyl hydroperoxide is decomposed by heating in the presence of sulphuric acid to give p-cresol; (2) p-cymene is oxidized to p-isopropylbenzyl hydroperoxide which is decomposed in the presence of sulphuric acid to give isopropyl phenol; and (3) toluene is oxidized to benzyl hydroperoxide which is decomposed in the presence of sulphuric acid to give phenol. Specifications 626,095 and 676,770 are referred to.
Patent GB-718520-A (GB)
Title: Improvements in or relating to resilient suspensions for motor cycles
Inventor: HOPWOOD HERBERT
IPC: B62K25/16
Filed: 1951-11-20
Abstract: 718,520. Spring forks for motor-cycles. BIRMINGHAM SMALL ARMS CO., Ltd. Feb. 20, 1953. [Nov. 20, 1951], No. 24523/51. Class 136(3) A resilient suspension for the front wheel of a motor-cycle comprises an arcuate girder member 1 of channel section rigidly connected to the enlarged lower end 7 of a steering stem 5 mounted in the steering head 9 of the motor cycle, the member 1 depending rearwardly from the steering stem and having pivotally attached at 13 links 15 connected at their forward ends 19 to the wheel axle, a hydraulic shock absorbing device 21 being pivoted at 27 and 23 to the links 15 and the forward end of the member 1 respectively. A reinforcing collar 11 is welded to the steering stem 5 and to the back of the member 1. The hydraulic shock absorbing device may be replaced by a compression spring. Friction discs may be provided at the pivot 13. A rubber mounting 25 is provided at the pivotal joint 23.
Patent GB-1498835-A (GB)
Title: Stabilisation of sodium metasilicate
IPC: C01B33/32
Filed: 1975-06-09
Abstract: 1498835 Sodium metasilicate composition SOC FRANCAISE DES SILICATES SPECIAUX "SIFRANCE" 9 June 1975 [10 June 1974] 24660/75 Heading C1A [Also in Division C5] Sodium metasilicate containing less than 10 wt. per cent of water is treated with monosodium phosphate to improve the stability (in the presence of a surfactant) of the metasilicate and/or compositions containing it, and/or to reduce dust formation during handling. Preferably the metasilicate is treated with 2-10% of a saturated monosodium phosphate solution; powdered phosphate may also be used.
Patent GB-1019747-A (GB)
Title: Damping connector for a power train
IPC: H01L21/00
Filed: 1964-06-15
Abstract: 1,019,747. Damped resilient drives. TWIN DISC CLUTCH CO. June 15, 1964 [Feb. 13, 1963], No. 24737/64. Heading F2U. An engine is connected to a load by a torsion bar 14, Fig. 1 (Fig. 2 not shown), of a stiffness such that the arrangement can be subjected to torsional resonance only below the idling speed of the engine, and a torsional vibration damper is provided for limiting the vibration at resonance during starting and stopping of the engine. To this end, the torsion bar 14 is fast at its input end with a tube 15 which is welded at its output end to a sleeve 20. The bar 14 is splined at 17 to a sleeve 18 formed with outwardly projecting blades 24 which bear against the internal surface of the sleeve 20. Sleeve 20 is formed with internal blades 23 spaced from the surface of sleeve 18 so as to form restricted passages 28 (not shown) between liquid filled chambers formed on either side of the blades so as to provide fluid-friction damping. The ends of the torsion bar are connected to yokes 11, 19 of universal joints.
Patent GB-1155741-A (GB)
Title: Finishing Compositions
IPC: C08L83/00
Filed: 1966-06-03
Abstract: 1,155,741. Coated sheet material. E. I. DU PONT DE NEMOURS & CO. 3 June, 1966 [25 June, 1965], No. 24779/66. Heading B2E. [Also in Divisions C3 and D1] An article is coated with a composition comprising (1) a fluorochemical which is a substantially linear polymer of ethylenically unsaturated monomers, at least 35% (by weight) of said monomers being represented by the formula where R is H, -CH 3 , -CH 2 OH 3  or halogen; X is -O-(CH 2 ) n -; -NH-(CH 2 ) n - , -0- H R || (CH 2 ) n -N-SO 2 -, -O-(CH 2 ) n -N-SO 2 -, H -S-(CH 2 ) n -, -O-(CH 2 ) n -N-SO 2 - | -S-(CH 2 ) n -, -O-(CH 2 ) n -N-SO 2 - R<SP>1</SP> | (CH 2 ) n -, -O-(CH 2 ) n -N-SO 2 -(CH 2 ) n - R<SP>1</SP> | or -N-SO 2  where n is an integer from 1 to 14, and R<SP>1</SP> is an alkyl radical having 1 to 6 carbon atoms, and n is an integer from 1 to 13; (2) a substantially linear curable polyorganosiloxane of molecular weight at least 500, the amount of fluorochemical in the composition being from 25% to 90% and the amount of polyorganosiloxane being from 10% to 75%, by weight of the total of (1) and (2); and (3) a liquid carrier.
Patent GB-780287-A (GB)
Title: Improvements in or relating to wheel rims
IPC: B60B25/22
Filed: 1955-08-29
Abstract: 780,287. Wheel rims. KELSEY-HAYES CO. Aug. 29,1955 [Oct. 25,1954], No. 24780/55. Class 144 (2). For use with a tubeless tyre, a wheel rim 1 comprising a base 4 with integral bead seating and retaining flanges 7, 5 at one side, and an annular gutter 6 at the other to receive a locking ring 13 for a detachable bead seating and retaining ring 2, includes also a rubber or like sealing member 18 carried by the detachable ring 2 and comprising spaced annular portions 19 sealed to the ring 2 and an intermediate annular portion 20 which is open to the inflation air within the tyre, as by means of holes 21 in the bead seat portion 14 of the ring 2, to be pressed thereby firmly into sealing engagement with the rim base 4. Fig. 1 shows the sealing member 18 as a rubber strip with thickened edges bonded to the sides of a radially inwardly facing recess in the underside of the detachable ring 2 defined by its axially inner terminal lip 15 and its locking-ring engaging rib 16. The holes 21 in the ring portion 14 lie axially inwardly of the tyre beads. The intermediate portion 20 of the sealing member may be ribbed for engagement with the rim base. The detachable ring 2 may be formed of strip stock instead of the mill section shown. Fig. 2 shows the sealing member 22 as a flat tube with its edge portions bonded to the detachable ring 23 and its radially inner side bowed radially inwardly for engagement with the rim base, communication with the tyre air space being via a tube 24 extending through a hole in the ring 23.
Patent GB-712234-A (GB)
Title: Improvements relating to filler valves for bottle filling machines
Inventor: SCOTT WILLIAM PHILLIP
IPC: B67C3/26
Filed: 1950-10-11
Abstract: 712,234. Valves. SCOTTS ENGINEERING (NEWPORT), Ltd. Oct. 11, 1951 [Oct. 11, 1950], No. 24784/50. Class 135. [Also in Group XVII] In a filler valve for bottling machines comprising a gland member 13 moved by an applied bottle 6 in a direction tending to collapse a flexible sleeve 14 and away from a conical seating 7 mounted on the end of a stationary air vent tube 5, the seating is rendered detachable from the vent tube by being made of resilient material and by being formed with an internal channel engaging over a collar 8 on the end of the vent tube. Specification 646,470, [Group XVII], is referred to.
Patent GB-1514394-A (GB)
Title: Stowing hinge for boat ladder
IPC: B63B27/14
Filed: 1976-06-15
Abstract: 1514394 Hinges DETROIT MARINE ENG CORP 15 June 1976 [22 Sept 1975] 24784/76 Heading E2F In a hinge for a stowable boat ladder 12, upper 21 and lower 22 sections of the hinge are each provided with a rail support 15 which is housed in a tubular socket 23, 24 of the upper and lower sections of the hinge respectively, the upper section 21 having three leaves 27, 28 and 29 which interfit with two leaves 36, 37 on the lower section 22, the leaves being held together by a pin 35 which operates in a slot 42 provided in the leaves 36, 37 such that the ladder may be stowed in the position shown in Figure 1 or may be extended to an operative position shown in Figure 2. A bridge portion 43 is formed between the leaves 36 and 37 and serves to strengthen the leaves. When the hinge is in its folded position the surface 44 of the bridge portion 43 abuts the leaf 28. The hinge may be formed of a moulded plastics material.
Patent GB-967621-A (GB)
Title: Improvements in or relating to machines for the drying of cereal grain or the like material
IPC: F26B17/12
Filed: 1963-06-21
Abstract: 967,621. Grain &c. driers. F. T. KENNEDY. June 21, 1963 [Sept. 5, 1962], No. 24797/63. Heading F4G. A grain &c. drier comprises a cylinder 1 having secured to the bottom thereof an inverted conical cooling chamber 2, and an inner cylindrical drum 3 of smaller diameter than the cylinder 1 to form an annular passage 11 therebetween which has secured to the top a conical chamber 4, all except the bottom 3a of the drum 3 being of perforated metal sheet or the like. The grain to be dried passes via a centrally disposed worm gear conveyer 6 to an upper hopper 5 from whence it flows under gravity over the outer surface of the chamber 4 and through the annular passage 11, hot air from a pipe 10 passing into the cylinder 1 and chamber 4 and passing through the perforations therein for exhaustion to atmosphere. The dried grain flows down the inclined inner surface of the cooling chamber 2 where cold air is drawn in through the perforated surface by a fan (not shown), the grain being collected from bagging shoots 12. In a modification the means for feeding heated air into the cylinder 1 comprises a heat exchanger which extracts the air heated in the cooling chamber and after further heating discharges this air into the dr 3. Baffles 7, 7a are mounted on the outer s face of the chamber 4 and interior surface of the cooling chamber to control the depth of grain passing down the inclined surfaces thereof.
Patent GB-1454176-A (GB)
Title: Selective ionization system
IPC: H01S3/00
Filed: 1973-10-24
Abstract: 1454176 Separating isotopes JERSEY NUCLEAR-AVCO ISOTOPES Inc 24 Oct 1973 [2 Feb 1973] 24880/76 Divided out of 1454175 Heading HID The description is substantially identical to that of Specification 1,454,175 but the main claims are directed to a method of and apparatus suitable for selectively ionizing a mixture of isotopes comprising applying first electromagnetic radiation to selectively excite one isotope to a first state, second radiation to raise the one isotope from a first to a second state and further radiation to ionize the one isotope.
Patent GB-1113281-A (GB)
Title: Improvements in or relating to bantam mortar
IPC: F41F1/06
Filed: 1965-06-11
Abstract: 1,113,281. Muzzle loading artillery devices. H. C. C. BRIERCLIFFE and W. E. S. GAMBLIN. 11 June, 1965 [11 June, 1964], No. 24896/65. Heading F3C. A mortar has a barrel 10, a trigger mechanism for firing the mortar and a means for mounting the barrel, the ratio of the internal diameter of the mortar barrel to the effective muzzle length being substantially between 1 : 3 to 1 to 4À5, preferably 1 : 3À6. The lower end of the barrel is provided with an apertured plug 20 through which projects a firing pin 23 spring loaded to a position below the top surface of the base plug 20. A hammer 35 provided with pins 31 is mounted beneath the firing pin 23, the pin 31 co-operating with 60 degrees cam faces 30 of soft fibre formed in a firing sleeve 17. Clockwise rotation of the sleeve 17 causes the hammer to be biased against a main spring 32 away from the firing pin 23 until the top edge of the cam surface is reached whence the hammer is released to fire a projectile housed in the barrel. The barrel is pivotably and lockably mounted on a base plate (Figs. 1, 3). A range indicating device is clamped on the barrel and comprises a pivoted pendulum which is mechanically connected to a drum eccentrically mounted about the pendulum, the drum being calibrated to give the range corresponding to the tilt of the pendulum which corresponds to the tilt of the barrel (Figs. 5, 6, 7).
Patent GB-405735-A (GB)
Title: Improvements relating to hand tools for weeding or cultivating land
IPC: A01B1/00
Filed: 1932-09-08
Abstract: 405,735. Hand hoes ; handles. MANISE, P., 83, Heythorp Street, Wandsworth, London. Sept. 8, 1932, No. 24977. [Class 6 (ii).] The handle of a hand tool for weeding &c. is provided at the end remote from the tool head with a ring adapted to encircle the forearm of the user so that the tool may be used with one hand. The ring, which is preferably flexible, may comprise a length of rope &c. D, Fig. 2, which is anchored at one end and adjustably clamped at the other end by a pivoted plate G. Alternatively it may comprise a strap and buckle. The tool head comprises a length of steel I, Fig. 3, bent twice at right-angles and sharpened on both edges. It is secured to the handle by bolts passing through the longer arm J. The other end of the handle may be provided with a thinning-out tool, Fig. 4, comprising a cutter N protected by projecting guards L.
Patent GB-900422-A (GB)
Title: Improvements in or relating to portable power tools
IPC: B23Q11/12
Filed: 1959-07-21
Abstract: 900,422. Portable drilling machines. SIEMENS - SCHUCKERT (GREAT BRITAIN) Ltd., and DIXON, B. J. July 21, 1960 [July 21, 1959], No. 24983/59. Class 83 (3). [Also in Group XXXV] A portable drilling machine has an electric motor housed in a casing, at least one hollow handle and means for directing cooling air over the outer surface of the casing and through the handle. The body 1, Fig. 1, of the drill is provided with radial fins 19, Fig. 2, extending longitudinally and a fan 14, Fig. 1, secured to the rear end of the motor spindle has shaped blades which force cooling air along the channels 24 between the body fins. A cowl 16, Fig. 2, is secured over the end of the body and the air enters through openings 15 between ribs 18 connecting the inner and outer portions of the cowl. The hollow handles 12, 13 are open at their lower ends and connected at the top ends with members 22, 23, which have openings facing the channels 24. Cooling air is thus forced into the handles and passes out to atmosphere through their lower ends.
Patent GB-426997-A (GB)
Title: Improvements in and relating to tooth brush spoons
IPC: A46B15/00
Filed: 1934-08-31
Abstract: 426,997. Toothbrushes , spoons. PETERKIN, J. E., 7, Rathnally Avenue, and MARLOW, F. W., 417, Bloor Street, W., both in Toronto, Canada. Aug. 31, 1934, No. 25069. [Class 128] [See also Group XXIII] A toothbrush 1 is enlarged at the handle 2 and formed into a spoon-like depression 4, so so that the upper surface of the spoon is horizontal when the toothbrush rests on a horizontal surface. The side walls of the spoon are preferably vertical and the end wall is outwardly inclined.
Patent GB-1342166-A (GB)
Title: Process for the production of alkynols
IPC: C07C7/11
Filed: 1971-04-19
Abstract: 1342166 Alkynols SNAM PROGETTI SpA .19 April 1971 [24 March 1970] 25079/71 Heading C2C Alkynols are produced by (1) contacting with liquid ammonia a gaseous mixture containing an alkyne and at least one alkene to give an ammoniacal solution of the alkyne and of a portion of the alkene(s), and (2) reacting this solution with a ketone in the presence of an alkaline catalyst to give an alkynol. The example describes the synthesis of methylbutynol from a gaseous feed of acetylene and ethylene using acetone as the ketone reactant and aqueous KOH as catalyst.
Patent GB-713151-A (GB)
Title: An improved photographic printing frame for printing three or more current sizes of photographic enlargements
IPC: G03B27/58
Filed: 1952-10-07
Abstract: 713,151. Photographic enlarging frames. ROUBIEU, H. P. Nov. 20, 1952 [Oct. 7, 1952], No. 25085/52. Class 98(1) A frame providing several fixed sizes of masks for making enlargements consists of an oblong shallow box having different masking apertures on its two large faces, e.g. for whole plate on one face and for ¢-plate and “-plate on the. other; and either a plate movable within the box and always resiliently urged against one or other of these faces as by spring-pressed ball catches, or a pair of plates kept apart by springs for pressing printing paper against the chosen masking face of the box. The two faces of the box may be interchangeable with plates having masks of different sizes. Additional means may be provided from holding the paper-locating plate or plates away from the selected masking face while inserting the printing paper. Rubber pads may be secured at each corner on both the masking faces to prevent sliding of the frame on the base of the enlarger or if this is of wood drawing pins may be passed through holes in the frame. The paper-locating plate or plates may have a matt white surface for use for focusing.
Patent GB-1177991-A (GB)
Title: Counter Apparatus
IPC: B28C5/42
Filed: 1967-05-31
Abstract: 1,177,991. Counters. JAEGER MACHINE CO. 31 May, 1967 [27 June, 1966], No. 25123/67. Heading G4D. [Also in Division G1] Revolutions, e.g. of a cement mixer, are registered on a totals counter, and also on a separate counter only if the rate of revolution lies between predetermined limits. A magnet 12 on the cement mixer drum closes a reed switch 11 at each revolution, so advancing a totals counter 22. A reset circuit 31 closes contacts 27, 28 and starts delay circuits 29, 30. If the next pulse from 11 arrives before circuit 30 has restored contact 28 or after circuit 29 has restored 27 it is ineffective except that reset circuit 31 starts another cycle. If the next pulse arrives after contact 28 has restored but before contact 27 has restored it is registered on mixing counter 23. At the same time a lamp 34 is lighted.
Patent GB-297967-A (GB)
Title: Improvements in or relating to plug-in contacts for electrical circuits
IPC: H01R13/703
Filed: 1927-09-24
Abstract: 297,967. Waite, R. T. Sept. 24, 1927. Plug couplings. - The socket comprises an upper portion 9 that is not in electrical connection with the live portion 8 which is arranged at a lower level below the cover plate 10. The pin when withdrawn breaks contact first with the portion 8, any arc formed occurring between the portions 8, 9 of the socket. The portion 8 consists of a resilient plate attached to the terminal 6. The portion 9 is secured in the cover plate 10 which, with a surrounding wall attached to the base, encloses the contacts. An earthing socket 12 may be provided.
Patent GB-846308-A (GB)
Title: Electric arc welding
Inventor: ORTON JOHN JAMES
IPC: B23K9/007
Filed: 1957-08-09
Abstract: 846,308. Welding by fusion. BRITISH OXYGEN CO. Ltd. July 28, 1958 [Aug. 9, 1957], No. 25214/57. Class 83 (4). A gas shielded arc welding torch is releasably pressed against the work by means structurally associated with the torch. The torch consists of an eccentrically mounted tungsten electrode held as described in Specification 846,309 in a body 1 carrying a water- or air-cooled gas nozzle 3. The torch is jammed between a fixed surface 20 and the work 18 by movement of a cylinder 14 sliding on a projecting portion of the body 1 which is provided with a passage 17 through which fluid, e.g. compressed air, is passed to the cylinder 14. Slots 7 in the nozzle 3 allow shielding gas to escape when the torch is pressed to the work to make a spot weld. Extension plugs 16 of various lengths may be secured to the cylinder 14. The cylinder and the nozzle may be provided with rollers to make elongated spot or continuous seam welds. Electromagnetic or mechanical devices may be used in place of the fluid-pressure device described above.
Patent GB-207909-A (GB)
Title: Means usable with mechanical telegraphs for ships
IPC: B63H21/22
Filed: 1922-09-18
Abstract: 207,909. Wilson, J. S. Sept. 18, 1922. Mechanical telegraphs.-Relates to apparatus for ships whereby indications are given to the engineer if the orders transmitted to him from the pilot are incorrectly attended to. As shown in Figs 2 and 3, pulleys 3, 4 are fixed to the sleeves 5, 6 which are rotatably mounted on a shaft 17 fixed in a plate 2. The pulley 4 is connected to the pointer spindle of the order receiver and the pulley 3 is connected to the lever &c. which controls the engine. A lever 7 carrying a roller 8 is mounted on each side of the plate 2. Similarly on both sides of the plate are pairs of levers 9, 10, the levers 9 being connected to the levers 10 on opposite sides of the plate. Each lever 10 carries a pivoted cam lever 11 which contacts with a roller 12 carried by a sliding rod 13. Integral with the sleeves 5, 6 are arms 14, 25 which carry rollers 15, 16. When the pilot operates the telegraphs, the pulley 4 and arm 25 are rotated, and the roller 16 engages one or other of the levers 7, 9 according to the direction of rotation and rotates it against spring pressure. If the lever 7 is rotated and the engineer operates the engine control lever in the wrong direction, the pulley 3 is rotated to bring the roller 15 of the arm 14 into contact with the lever 9 on the opposite side of the plate 2 and so rotate it to raise the rod 13 by means of the cam surface 26 and give a visible indication of incorrect operation of the engine control lever. A hinged lever 27 situated above the rods 13 may be arranged to shut off steam from the engine, to prevent the operation of the stop valve or to close the circuit of electrical indicating apparatus. Fig. 5 shows an arrangement of apparatus for giving visual and audible signals. Upward movement of the lever 27 causes the bell 43 to be struck by a hammer which is actuated by a pivoted lever 48 and a shutter carried by a lever 40 to be lowered by the link 41.
Patent GB-319321-A (GB)
Title: Improvements in dental radiography
IPC: G03B42/04
Filed: 1929-08-19
Abstract: 319,321. Bosworth Co., H. J., (Assignees of Hillweg, C. U.). Sept. 20, 1928. [Convention date]. Void [Published under Sect. 91 of the Acts]. R÷ntgen-ray apparatus.-A number of X-ray views, such as dental views 25, are grouped together on a single transparent film 20, as by printing from a composite negative made from assembled individual views; and the various portions of, and pathological conditions in, the views may be tinted to indicate differences, as with water colours applied to the rear face of the film, similar areas, or areas showing similar conditions, being coloured with the same tint. Sickly colours are preferably chosen to indicate the pathological conditions. The composite negative may be so made that the individual views in the positive print are surrounded by opaque interspaces and margins 26, 28. A key tint-chart may be associated with the views, for example along the border of the film or between the views, to indicate the relation of the tints to the various parts and conditions. 'The film may be provided with a frame comprising one or more thin metal strips 30, 32 folded to embrace the margins, and secured thereto as by centrepunching at the points 35, 36. The frame may be painted black or coloured.