baber/WOPTO huggingface dataset:
Patent GB-986040-A (GB)
Title: Improvements in the chloromethylation of aromatic compounds
IPC: C07C25/18
Filed: 1963-06-07
Abstract: Aromatic compounds are chloromethylated by reacting the compound with hydrochloric acid and formaldehyde at 50-100 DEG  C. under an excess pressure of hydrogen chloride in a solvent which is indifferently miscible with hydrochloric acid and with the other compounds e.g. an aliphatic carboxylic acid such as acetic acid and preferably at a pressure of between 0.5 and 6 atmospheres.  Examples are given of the chloromethylation of durene, xylene, toluene, mesitylene and octahydro-anthracene.
Patent GB-786197-A (GB)
Title: Improvements in or relating to containers for fluids
Inventor: ANDERSON LAURENCE WILLIAM
IPC: B64D37/12
Filed: 1954-08-06
Abstract: 786,197. Tanks. JET TANKS, Ltd. Feb. 17, 1955 [Aug. 6, 1954], No. 22891/54. Class 69 (1). A tongued and grooved joint between the parts of a fluid container such as an aircraft drop tank has the tongue and groove arranged so that the joint can only be engaged and disengaged by relative movement obliquely to the surface of the parts. Figs. 1 and 3 show two joints in which abutting surfaces 1 and 2 are set at 45 degrees to the plane of the parts 3 and 4; in Fig. 3, the overlapping member 6 provides extra contact area for improving adhesion. Fig. 5 shows an aircraft drop tank comprising a cylindrical part assembled from parts 3 and 4, castellation 7 allowing the assembling by longitudinal sliding at the joints, and a conical end member 9 then secured to the cylinder.
Patent GB-1211528-A (GB)
Title: Improvements in and relating to protective closures
Inventor: BRISAC MICHEL
IPC: G21C13/028
Filed: 1969-05-06
Abstract: 1,211,528. Shielded cells. COMMISSARIAT A L'ENERGIE ATOMIQUE. 6 May, 1969 [22 May, 1968], No. 23098/69. Heading B4Q. A sliding door 1 for closing a circular passage 3 leading to a cell is shown in its lower closed position in the left-hand half of Fig. 1 and in its raised open position in the right-hand half of the Fig. The door 1 is formed by a thick lead plate 4 having a metal envelope 5 and a flange 7 secured by screws 6. The flange 7 carries guide rollers 9 co-operating with grooves 11 formed in a lead frame 2 having a metal envelope 12. When the door 1 is in the closed position inclined surfaces 15, 16 at the lower end of the door abut surfaces 13, 14 on the frame 2. Sectorshaped lead plates 17, 18 pivoted at 19, 20 to the frame 2 have a flat surface 21 formed by a metal envelope, these plates together with the door and frame forming a shielded extension of the passage 3 when the door is in the open position, the surfaces 15, 16 then abutting the surfaces 21. In a modification (Fig. 3, not shown) the abutting surfaces of the door 1 and plates 17, 18 are of arcuate configuration of the same radius as the passage 3. In other embodiments (Figs. 4-6, not shown) the plates 17, 18 are slidable on the frame 2 to engage and disengage the door 1. In other modifications (Figs. 7, 8, not shown) the pivoted plates 17, 18 are counterbalanced.
Patent GB-805646-A (GB)
Title: Crucible for melting metal in an arc furnace
IPC: F27B3/08
Filed: 1956-07-26
Abstract: 805,646. Arc melting furnaces. TITANIUM METALS CORPORATION OF AMERICA. July 26, 1956 [Aug. 22, 1955], No. 23116/56. Class 39(3) [Also in Group II] A crucible for melting metal in an arc furnace 16 comprises inner and outer shells 20, 10 separated by a liquid cooling space 36, and a space 24 for inert gas (helium or argon) underlying portion of the inner surface of the inner shell. The space 24 may comprise an internal integral helical duct, and an ionization type of vacuum gauge may be provided to indicate any leakage of helium.
Patent GB-1039086-A (GB)
Title: Improvements in casting methods
IPC: B22C9/04
Filed: 1963-06-11
Abstract: 1,039,086. Casting processes. GRUNZWEIG & HARTMANN A.G. June 11, 1963 [March 14, 1963], No. 23164/63. Heading B3F. In a process according to Specification 850,331 which is referred to, the gasifiable pattern is a substantially spherical feeder head pattern 3 which may be arranged above an ingot mould, Fig. 5, in a runner 4<SP>1</SP>, Fig. 3, or in the bend of a side runner. The other patterns may also be gasifiable or of material such as wood which must be removed before casting. The feeder head pattern may have a coating 3a of an insulating or exothermic material and allaying &c. ingredients may be incorporated.
Patent GB-930323-A (GB)
Title: Process for strengthening pipes
Inventor: DIEDRICH GEORG
IPC: B29C48/885
Filed: 1959-07-06
Abstract: 930,323. Non-metallic pipes. FARBWERKE HOECHST A.G. July 6, 1959, No. 23208/59. Class 99(2). [Also in Group V] A process of strengthening pipes of, or containing, polyvinylchloride comprises conducting the extruded pipe 1 through a heating bath 4, subjecting the pipe to internal pressure to expand it hemispherically against the outlet wall 5 of the bath, the pipe during expansion being at a temperature of from 50C. to 130C., and withdrawing the pipe through a cooled sizing conduit 6.
Patent GB-226268-A (GB)
Title: Improvements in tape measures
IPC: G01B3/10
Filed: 1923-09-17
Abstract: 226,268. Stamm, M. Sept. 17, 1923. Fabrics composed of threads or cords united by adhesives.-A tape measure consists of longitudinal threads of fibrous material embedded in a tough, elastic, and adhesive mass consisting of celluloid or a derivative thereof, the threads being arranged parallel and close to each other. The threads may be unwound from bobbins 1 and pulled through a solution in a vessel 4, being placed in position by combs 5. After the adhesive substance has dried in the air the tapes are passed between rollers 7 and wound on a reel 8. The solution may contain colouring matter, and one of the rollers may be a printing roller. Reinforcement threads 11. Fig. 4, may be interposed between the ordinary threads 9. Specification 173,021 is referred to.
Patent GB-518020-A (GB)
Title: Improvements in retractible undercarriages for aircraft
IPC: B64C25/20
Filed: 1938-08-06
Abstract: 518,020. Aircraft landing gear. STONE & CO., Ltd., J., and HATCHER, E. C. Aug. 6, 1938, No. 23274. [Class 4] A retractable undercarriage or landing wheel is raised and lowered by rack and pinion mechanism so arranged that when the pinion reaches the position in which the undercarriage is fully projected it rolls off the rack and effects a positive engagement between parts which transmit shock on landing to means supported on the aircraft and not to the operating gear. Fig. 1 shows a pivoted arm b which is raised .and lowered by a link e connected to a slotted member g having a rack h engaged by a pinion k supported by brackets m and driven from a motor M through reduction gearing. Rollers r are mounted on each side of the pinion to run on recessed tracks s, s<1>, a bay t being formed at the end of the slot into which the rollers fit when the arm b is extended so that landing shocks are transmitted directly to the spindle of the rollers and pinion. A similar bay t' may be formed at the other end of the slotted member to engage the rollers r when the undercarriage is retracted. Alternatively the slotted member g may be fixed and the pinion and driving-gear be mounted on the end of the link e. In a further modification the wheel-carrying member is pivoted at an intermediate point and its upper end is pivoted to a slotted link with rack engaged by a pinion and rollers on a fixed, part of the craft.
Patent GB-424638-A (GB)
Title: Improvements in and relating to the manufacture of paper or like bag tubes or bags
IPC: B31B23/00
Filed: 1933-08-22
Abstract: 424,638. Making paper &c. bags &c. JONES, A. J., and ROBINSON, E. S. & A., 1, Redcliffe Street, Bristol. Aug. 22, 1933, No. 23383. [Class 94 (ii)] A method of forming bags or bag tubes, which may be gussetted, with a smooth-edged closure flap or overlap f<2> at the mouth, consists in forming a continuous tube from a web a, severing the tube with a compound cut, f<1>, f<3>, i.e. one which extends both transversely and longitudinally of the tube, into bag tube lengths, and transposing the position of the cut edges so that the edges of the mouth lie substantially out of register to provide the closure flap f<2>. A web of thin paper, the material known under the Registered Trade Mark " Cellophane " &c., 1 from a reel 2 is guided by rollers 3, 5 past an edge gumming device 4 to a tube former 6, 7, being fed by rolls 10 which imprint fold creases c at the two edges, Stage I. It is thence drawn by rolls 11 over a double-wedge shaped device 8, 9 the thin edges of which are substantially at 90‹ to each other, the side edges of the portion 8 being rounded so as not to impress a crease at this stage, Stage II. A rotary knife co-operating with a fixed blade 12b shears off tube lengths, Stage III, which are passed by rollers 15 over a second double wedge shaped device 13, Stage IV, the rollers 15 co-operating with other rollers positioned inside the tubular blank. The device 13 floats by virtue of its support or roller pairs 17, 18. The tubular blank which is thus transposed to its original plane is fed forward by rolls 19 to tapes 21 and hence to a bottomforming and pasting device 22 .. 27, Stage V. As a modification the severance of the bag tubes may take place in two steps by the aid of a series of central perforations. The angle through which the tubes are disposed is not restricted to 90‹ but may vary as desired. The Provisional Specification indicates that a suction device may be used to open the end of the severed tubular blank on being fed toward the bottom-forming mechanism.
Patent GB-532044-A (GB)
Title: Improvements in adhesives and paper sizings
IPC: D21H17/28
Filed: 1939-08-14
Abstract: 532,044. Adhesives; sizes. VANDERBILT CO., Inc., R. T. Aug. 14, 1939, No. 23421. Convention date. Aug. 13, 1938. [Class 121] A composition, particularly for use as an adhesive in making laminated paper or as a size for paper, consists of starch converted by an enzyme together with gelatinized unconverted starch. Tapioca, corn, potato or sago starch is mixed with water, an enzyme such as amylase is added and the mixture maintained at a temperature above the gelatinizing temperature but below that at which the enzyme is rendered inactive. The temperature is then increased, e.g. to 195‹F. to destroy the enzyme. The mixture is cooled, raw starch is added, and the mixture again heated to gelatinize the starch. Borax, soda ash or other alkaline material may be added to increase tackiness, and a small addition may be made during the conversion. Formaldehyde or other preservative may be added.
Patent GB-1518211-A (GB)
Title: Process for recovering silver value from photographic scrap
IPC: B29B17/02
Filed: 1976-06-07
Abstract: 1518211 Recovering polyester from photographic scrap HORIZONS RESEARCH Inc 7 June 1976 [11 June 1975] 23445/76 Heading C3R A process for recovering polyester, silver value and subbing layer from photographic scrap comprises (a) treating the scrap with a solvent for the polymeric materials and recovering the silver value from solid phase, (b) cooling the solution so that the polyester precipitates out, (c) treating the solution of the subbing layer polymer (e.g. a vinylidene chloride terpolymer) with a second solvent and then with a third solvent so that the subbing layer polymer is precipitated out. The polyester is preferably polyethylene terephthalate.
Patent GB-915120-A (GB)
Title: Improvements in or relating to methods of making rod-like bodies by drawing from a melt
IPC: C30B15/12
Filed: 1959-07-08
Abstract: <PICT:0915120/III/1> A rod-like body, e.g. of germanium, is drawn upwards from a melt while surrounded by a tubular body of the same substance immersed in an annular melt separated from the aforesaid melt.  The tubular body may also be drawn upwards or may be stationary.  The melts may have a common or separate supply.  The two bodies may be of different purity provided that the melting points and heat conductivities are not substantially different.  As shown, a rod 6 is drawn from a melt 5 in a crucible 1 while surrounded by a tube 4 immersed in a melt 3 separated from melt 5 by an annular partition 2.  Crucible 1 may have an aperture in its wall for the intermittent or continuous supply of material to melt 3 and thence to melt 5 via one or more slots 7.
Patent GB-458044-A (GB)
Title: Protector for band music-books
IPC: B42F5/00
Filed: 1935-08-22
Abstract: 458,044. Book protectors. THORNTON, T. L., 6, Temple Street, Blackpool. Aug. 22, 1935, No. 23532. [Class 16] A device for protecting the pages of music books when being used out-of-doors comprises a spring clip a for engaging the cover and a sheet of celluloid, mica, or similar transparent material hinged thereto to cover the exposed pages. Alternatively, the hinged sheet j may form an integral part of the book. Beaded parts b, g on the clip a and on a clip g carrying the sheet are engaged by a rectangular wire frame c forming the hinge connection between the clip a and the sheet j. According to the Provisional Specification, the hinge connection consists of split rings engaging holes in the beadings b, g.
Patent GB-1042055-A (GB)
Title: Device for positioning and/or conveying work pieces
IPC: B21D43/10
Filed: 1963-06-13
Abstract: 1,042,055. Blanks transferring. G. STOLL, [trading as FESTO MASCHINENFABRIK GOTTLIEB STOLL]. June 13, 1963, No. 23574/63. Heading B3H. A positioning and conveying device for transferring workpieces to and from a work station without special stationary guide faces comprises feeding, adjusting and gripping and chucking mechanisms 1, 2, 3. The feeding mechanism comprises a pneumatic cylinder assembly 5 having a piston rod 6 to the outer end of which is attached, via an adjustable and lockable ball-and-socket joint 23, the adjusting mechanism 2 which comprises a pneumatically operated rotating cylinder 8 coaxial with the cylinder 5, to which is attached a working cylinder unit 10 the axis of which is perpendicular to that of the cylinder 5. The cylinder 8 is rotated by impeller wheels 15a, 15b, Fig. 3a (not shown), or by a pinion 17, Fig. 3b (not shown), engaging a rack-type piston rod 19 to the ends of which are attached pistons 20, 21 reciprocable by pneumatic means within a cylinder 22. Alternatively a radially extending pin fitted to one end of the piston rod of the cylinder 8 engages a helical groove within a bushing there around to effect rotary movement during axial movement of the rod. The gripping mechanism 3 is attached via an adjustable and lockable ball and socket joint to the end of the adjusting cylinder piston rock and comprises a pneumatic cylinder assembly 26, a frame 37, Fig. 4 (not shown), attached to the cylinder, a pair of bell crank levers 38, 39 pivotally connected thereon, the inner ends of which are pivotally coupled to the end of the piston rod 28 and to the outer ends of which are attached detachable-shaped finger members 60, 61. Reversing valves 50, 70, 80, Fig. 1, carrying rods which abut with limiting stops, are fitted adjacent to each of the operating cylinders. The feeding assembly may be arranged in a casing and attached as a unit to a machine, e.g. an automatic assembling machine, or arranged for feeding a press. The operating sequence of the cylinder assemblies for gripping rotating, lowering and advancing an article to and fro along a straight line is automatically programme-controlled, e.g. by punched card programmes. In an embodiment the adjusting mechanism is arranged within a housing 42, Fig. 5 (not shown), and the piston thereof is coupled to a bridge-like closing wall 43, reciprocable along guideways 44, Fig. 7 (not shown), on which is mounted the gripping mechanism 48 having gripper members 56. An adjusting mechanism may be interposed between the feeding and gripping units for movement transversely of the feeding direction. In a further embodiment the gripping unit is pivotable about a horizontal axis extending transversely of the feeding movement and in a vertical plane.
Patent GB-1260808-A (GB)
Title: Finger ring setting
Inventor: MACROW PETER ALFRED
IPC: A44C17/02
Filed: 1970-05-15
Abstract: 1,260,808. Ring setting. HOWARD & IRVING JEWELLERY Ltd. [trading as REMCO MFG JEWELLERS]. 15 May, 1970, No. 23589/70. Heading A3H. A ring setting for a disc-shaped article, e.g. a coin 9, comprises a ledge 5 below the top of the ring. The coin is held in position by lips 6 and ledges 4 mounted on leaf portions 3 of the ring which are resiliently deformable. Hooks 7 are provided for a retaining member 8 which holds the leaf portions 3 in engagement with the coin. The retaining member may be bent as at (10), Fig. 3 (not shown) after the coin is mounted.
Patent GB-1269269-A (GB)
Title: Magazine tape recorder deactivating device
IPC: G11B15/16
Filed: 1969-05-09
Abstract: 1,269,269. Cassette tape recorders. LESA CONSTRUZIONI ELETTROMECCANICHE S.p.A. 9 May, 1969 [9 May, 1968], No. 23716/69. Heading G5R. A reel-to-reel cassette machine includes a tape tension sensor to render the machine inoperative when the tape is completely wound. The mechanism may be restored to rest and/or the motor de-energized when tape tension increases, a spring-loaded feeler 42 operates through elements 43, 47 to pivot a lever 23 into the path of a pin 19 resiliently coupled to the flywheel 10 so as to pivot the lever 23 further and thereby pull on a rod 30 to release a latch (37, Fig. 1, not shown) holding erase and record/playback heads in an operative position. The latch may be manually released. In a modification (Figs. 4-7, not shown) the feeler (42) pivots a lever (125) to open a switch (126) normally making the motor circuit and a warning light or buzzer may operate. The stop button (18) is depressed to restore the mechanism to rest and in so doing a pin (137) and rocker (134) remake the switch in preparation for the next operation.
Patent GB-938468-A (GB)
Title: Phosphate leaching
Inventor: SCHAUS ARTHUR
IPC: C05B3/00
Filed: 1958-07-23
Abstract: In a process for producing monocalcium phosphate liquor, ground phosphate rock is reacted in a series of stages with an acid of such a normality that the calcium carbonate and calcium phosphate react fully, but impurities, e.g. fluorides, silica, and iron and aluminium compounds, remain undecomposed so that they may be removed by settling.  Dicalcium phosphate may be precipitated from the monocalcium phosphate liquor.  The phosphate rock is reacted with acid, e.g. hydrochloric acid, with a normality not greater than 0,5 N.  Ground phosphate rock is slurried with recycled monocalcium phosphate liquor in a mixer 2 (Fig. 2), and the slurry is fed to a hydrocyclone 4 where fines are removed, the slurry then passing to the first of a series of mixers 6 to 10. Concentrated hydrochloric acid is diluted to the required normality in a vessel 5 and fed to mixers 6, 7 and 8.  Slurry from mixer 10 passes to a settler 11, where clarified liquor is removed to a <PICT:0938468/III/1> mixer 18, while the settled solid matter (impurities) from settler 11 is washed in another settler 14 and discharged by a pump 15, the washings being collected in a vessel 16 and pumped to vessel 5 to dilute the hydrochloric acid.  The liquor in mixer 18 is neutralized by the fines from hydrocyclone 4, passed through another mixer 19, clarified in a settler 20, and removed as product to a vessel 24, some being recycled to form slurry in mixer 2 and some to dilute the hydrochloric acid in vessel 5.  The settled fines from settler 20 are fed to mixer 8.
Patent GB-497499-A (GB)
Title: Improvements in hair clippers
IPC: B26B19/34
Filed: 1937-08-30
Abstract: 497,499. Hair-clippers. JOHANSON, G. K. V. Aug. 30, 1937, No. 23719. Convention date, March 15. [Class 131] In a vacuum-operated hair-clipper wherein a comb knife 4 is reciprocated relatively to a fixed comb knife 3 by a pivoted member 11 engaged by flanges 8 on a rod 6 connecting two pistons 5, the latter are guided in the cylinder 7 by a spindle 26 passing through the rod 6 and sesured by nuts 27 to the cylinder heads. A pipe in the hollow handle 2 connects a vacuum pump to the control valve disc 16 which is periodically oscillated by a link 19 pivoted at 20 to the link 11 and engaged by the flanges 8.
Patent GB-510386-A (GB)
Title: Improvements in and relating to the centrifuging of molten material before casting
IPC: B22D13/10
Filed: 1938-08-11
Abstract: 510,386. Centrifugal machines. PEMETZRIEDER, G. Aug. 11, 1938, No. 23726. Convention date, Aug. 21, 1937. [Class 23] [Also in Group XXII] In apparatus for centrifuging molten metal or other material before casting, the flow of molten material from the centrifuging drum 1 is by way of radial passages 6 and a depending pouring passage 7 formed in a closure member which normally rotates with the drum, escape of the material then being prevented by centrifugal force but which member may be braked in order to allow the outflow of the material during casting. The drum is rotated on rollers 10 by means of a motor 13 and a friction drive 11, 12. When the closure member rests freelv on the bottom of the drum it is rotated by frictional engagement. It may be brought to rest bv means of a brake member 18 which is raised by a lever 20 to engage a co-operating brake cam 17 formed on the closure member and at the same time lift the member out of frictional engagement with the bottom of the drum.
Patent GB-189864-A (GB)
Title: Improvements in boiler tube cleaners
IPC: F28G3/16
Filed: 1921-09-06
Abstract: 189,864. Wilson, A. M., and Ollsson, M. C. Sept. 6, 1921. Cleaning, fluid-pressure processes for.- Relates to apparatus for cleaning boiler tubes of the type having a rotatable .steam pipe passing through the wall of the boiler, such as described in Specification 110,814, and consists in means for limiting the angle through which the pipe can be rotated and in means for retaining the pipe in retracted position when not in use. Steam from the pipe 8 passes through the ports 15, 21 to the tube 17 containing a directing cone 23. The tube 17 with its nozzle 26 can be turned through an angle which is limited by the pin 33 working in a curved slot in the plate 29. The position of the plate 29 can be adjusted by pins 31 passing through curved The tube 17 is drawn back by the bar 36 and is secured in the inoperative position by turning it through a right-angle, so that the bar 36 rests in the recess 37.
Patent GB-1524448-A (GB)
Title: Hydrocarbon solvent cold-cleaners
IPC: C11D3/18
Filed: 1976-06-10
Abstract: The cold cleaner contains solvents and surfactants for cleaning soiled surfaces made of metal, cement, glass and the like. In order effectively to remove oily and greasy soiling, the following ingredients are present:     a) a mineral oil fraction b) saturated or unsaturated aliphatic alcohols or isoalcohols or cyclic alcohols which are liquid at room temperature and have 6-20 carbon atoms and/or fatty acids which are liquid at room temperature and have 8-20 carbon atoms c) one or more sulphosuccinic diesters whose alcoholic groups have 3-20 carbon atoms, where the concentration of b) is 3-20% by weight and of c) is 0.2-12% by weight.
Patent GB-482496-A (GB)
Title: Improvements in or relating to instruments for drawing scales
IPC: B43K8/20
Filed: 1937-09-01
Abstract: 482,496. Printing-machines. NILSSON, H. D. L. Sept. 1, 1937, No. 23882. Convention date, Sept. 3, 1936. [Class 100 (ii)] [Also in Group XX] An instrument for marking scales on drawings comprises a marking roller movably mounted on a shield plate and normally held in a re tracted position by a spring. A finger piece is provided to enable the roller to be moved tc the operative position. The Figure shows a pricking - roller 8 held by a leaf spring 11 on a pivot pin at the bottom of a plunger 4, which is guided on the shield plate 1 by staples 2, 3, and is normally held in the uppermost position by a leaf spring 14. The plunger may be depressed by means of the knob 5. The roller 8 is interchangeable and in a modification is replaced by a printing- roller against which an inking roller is resiliently held by an extension of the spring 14. A printing-roller carrying scale numbers may be arranged alongside the roller marking the scale graduations. A pricking - roller and a printing-roller may be mounted on the same shield plate for alternative use.