baber/WOPTO huggingface dataset:
Patent GB-868494-A (GB)
Title: Process for making fluorinated organic compounds
IPC: C07C17/278
Filed: 1957-09-30
Abstract: Polytetrafluoroethylene is plasticized with compounds boiling above 100 DEG C. at atmospheric pressure and having the formula Rc[CF2CF (CF3)]nX where n is an integer from 3 to 20, Rc is perfluoroalkyl or perfluorochloroalkyl and X is F, Cl or Rc[CF2CF(CF3)]n, preferred compounds being C3F7[CF2CF(CF3)]nCl, C3F7 [CF2CF(CF3)]nF and <FORM:0868494/IV (a)/1> Specification 774,103 is referred to.ALSO:Organic fluorinated telomers are produced by heating at a temperature from 150 DEG  to 350 DEG C. a telogen of the formula RQ with at least an equimolar portion of an unsaturated fluorinated difficultly polymerizable compound such as perfluoropropene, 2,3,3,3-tetrafluoropropene-1, perfluorocyclobutene and perfluorobutadiene for a sufficient length of time to form telomers having at least three units corresponding to the unsaturated compound in the telomer chain, Q representing bromine or iodine and R representing (a) a perfluoroalkyl, perfluorocycloalkyl or perfluoroalkenyl radical; (b) a perfluorochloroalkyl, perfluorochlorocycloalkyl, perfluorohydrocycloalkyl, perfluorochloroalkenyl or perfluorohydroalkenyl radical in which the carbon atom attached to Q is attached to at least one fluorine atom, a perfluoroalkyl radical or a R11CF2-radical where R11 is a perfluorochloroalkyl or perfluorohydroalkyl radical; or (c) an R1CXY-group where R1 is (i) fluorine, (ii) an alkyl, aryl or aralkyl radical or (iii) a halogenoalkyl, halogenoaryl or halogenoaralkyl radical containing not more than one iodine atom, where X is a fluorine or hydrogen atom or a perfluoroalkyl or R11CF2-radical containing up to 5 carbon atoms, and where Y is a fluorine, chlorine or bromine atom or a perfluoroalkyl or R11CF2-radical containing up to five carbon atoms, but where, if R is chlorine or bromine R1 is a fluorine atom or a halogenoalkyl or halogenoaralkyl radical in which there is not more than one iodine atom and in which the carbon atom linked to the -CXY-group has two substituents selected from fluorine, chlorine, perfluoroalkyl radicals containing not more than five carbon atoms, and R11CF2 radicals containing not more than five carbon atoms and has not more than one chlorine atom attached to it. Typical telogens are iodotrifluoromethane, 1-iodoperfluoropropane and 2-iodoperfluorohexane.  The Specification contains lists of suitable telogens and unsaturated compounds.  The telogen may be formed in situ by reaction of the unsaturated compound with iodine, bromine or iodine monochloride.  The Q atom (bromine or iodine) of the product may be replaced with chlorine or fluorine by conventional methods, e.g. treatment with chlorine or cobalt trifluoride.  The product of the process of the invention has the formula R(U)nQ where U designates the fluorinated unsaturated difficultly polymerizable compound and n is an integer, typical products being CF3[CF2CF(CF3)]nQ, C3F7[CF2CF(CF3)]nQ, C4F9CF(CF3)[CF2CF (CF3)]nQ, and CF2ClCFCl[CF2CF(CF3)]nQ. Specification 774,103 is referred to.
Patent GB-1436493-A (GB)
Title: Discharge valves for exhaust mains of shaft furnaces
IPC: C21B7/00
Filed: 1974-07-10
Abstract: 1436493 Valve DES ANCIENS ETABS PAUL WURTH SA 10 July 1974 [30 April 1973] 30605/74 Heading F2V [Also in Division F4] A shut down vent valve for blast furnace top gases comprises a housing 2 enclosing a valve seat 8 and a pivotally mounted flap valve 7 carried by an arm 9 pivoted at 10 so that it can move clear of the passage through the housing. A sleeve 17, carried by an arm 18 sliding in a frame 20 secured to the outside of the valve housing, can be moved downwardly when the valve 7 is open to shield the valve flap 7 and seating 8 from the gas. The sleeve 17 may be coupled to the valve actuating mechanism, and cooling gases may be delivered to the housing to prevent the entry of gas when the sleeve is lowered. A nozzle 29 may be supplied with steam to induce gas flow through the sleeve.
Patent GB-1391634-A (GB)
Title: Plaenary transmission mechanism and hydraulic control
IPC: F16H61/02
Filed: 1972-05-10
Abstract: 1391634 Change-speed gear; friction clutches BORG-WARNER CORP 10 May 1972 [1 June 1971] 30632/74 Divided out of 1391633 Headings F2C and F2D The subject-matrer is the same as that of the main Specification 1,391,633, but the claims are directed to the actuation of the direct-reverse clutch (21) and manual low-reverse brake (25) by dual pistons (52, 70) and (58, 71), which are applied singly for direct drive and manual low, but, for reverse, are both applied to provide increased torque capacity and are applied in sequence for smooth shift into reverse.
Patent GB-244112-A (GB)
Title: Improvements in and relating to carburetters
IPC: F02M9/08
Filed: 1925-12-04
Abstract: 244,112. Legac, S. G. Y. M. Dec. 4, 1924, [Convention date]. Spray carburettors.- The body 1, at its lower end, is of truncated cone shape exteriorly and provided with inclined air inlet openings 3 which are controlled by simila,r openings 5 in an adjustable ring 4 also of truncated cone form. Screwed into the body at 6 is a member 7 provided with an axial bore 8 and a lateral bore 9 in communication with a bore 14 in a union 12 rotatably mounted on a neck 9 of the member 7 and secured by a nut 15. To the upper end of the member 7 is screwed a hollow cylindrical member 18 with lateral openings 19. This member contains a fuel control valve comprising a stem 21, piston 22, and conical end 23 which seats in the bore 8. The valve is lifted by suction and serves to prevent a flow of fuel when suction ceases. The passage around the member 18 is varied by an adjustable choketube 24.
Patent GB-694518-A (GB)
Title: Improvements in or relating to hand tools for bending and straightening wires and the like
IPC: B21F1/00
Filed: 1950-12-18
Abstract: 694,518. Pliers. LAGES, C. A., and MATHER, R. Dec. 3, 1951 [Dec. 18, 1950], No. 30811/50. Class 61 (ii). Pliers for bending wires particularly those used by dentists for lingual bars comprise a cylindrical body 11 having an integral L- shaped head 19 which carries the anvil jaw 38, the presser jaw 35 being mounted on a plunger which is slidable in a bore in the body. The handle 10 is integral with the body, the handle 14 being pivoted to the body at 15 and having an inwardly directed arm 32 grooved at 31 to receive the flat end 30 of the spring retracted plunger 27 which is provided with an arcuate bottom surface. The opening of the handles is limited by stop surfaces on the handle 14 and body 11. The upright arm of the L-shaped head 19 is bifurcated to provide an. opening 21 through which a wire may be passed. The anvil jaw 38 which is detachably mounted in a bore in the horizontal part of the head is positioned between the bifurcations providing the opening 21. The jaw 38 has a conical recess and diametrically opposed grooves at its edges to locate the wire. The presser jaw 35 which is detachably mounted in the plunger by means of a screw threaded stem has a frusto-conical nose grooved diametrically by a pair of intersecting grooves. The jaws are made of such materials as phosphor bronze, tough plastic or vulcanised fibre.
Patent GB-1080288-A (GB)
Title: Washing machine
Inventor: GOLDMAN DAVID
IPC: A01K31/00
Filed: 1965-07-20
Abstract: 1,080,288. Washing machines. BETTER BUILT MACHINERY CORPORATION. July 20, 1965, No. 30862/65. Heading A4F. [Also in Division B2] In a washing machine particularly for animal cages and comprising a casing 10 for receiving the articles to be washed, water is circulated by a pump 84 (Fig. 2, not shown) through apertures 24 in a pipe 25 extending along the bottom of a V-sectioned sump 28, and discharged through a number of reaction type rotary sprays 111. The latter each comprise radially extending perforated pipes 130 at each outer end of which is mounted a nozzle member 135 having a stem 136 extending into the pipe end. Water discharged through an axial passage 143 in each stem 136 impinges upon an inclined surface 142 on the head of the nozzle member 135 causing reaction-forces upon the ends of the pipes 130 which rotate the sprayers 111. The washing water is heated by a steam coil provided above the pipe 25.
Patent GB-622678-A (GB)
Title: Improvements in or relating to tractor-drawn ploughs
IPC: A01B63/16
Filed: 1947-10-16
Abstract: 622,678. Agricultural implements. SELLER & SON, Ltd., G., and WOOD, G. B. Oct. 16, 1947, No. 30906/46. [Class 6(i)] A tractor-drawn plough is provided with a trailing caster wheel 11 which is movable relatively to the plough-frame from a supporting to a non-supporting position, the wheel being carried on a spindle 13, the upper end of which carries a winged lever 21 the wings of which engage the end faces of a bracket 17 in the non-supporting position to prevent castering of the wheel 11. The plough-frame 10 is provided rearwardly with the bracket 17 on which is pivoted a bracket 15, carrying the cranked axle 13 of the caster wheel 11. The wheel is movable relatively to the frame 10, about a pivot 16, to raise the ploughshare 12 clear of the ground and, in this position, is free to swivel. By the operation of a pivoted lever 18, controlled from the tractor, the plough may be lowered into ground-engagement. In the latter position, the wheel 11 is prevented from swivelling by the engagement between the winged lever 21, carried on the spindle 13, and the rear face 17a of the bracket 17.
Patent GB-416205-A (GB)
Title: Improvements in ventilators
IPC: F23L17/02
Filed: 1933-11-07
Abstract: 416,205. Ventilators. HEPPENSTALL, T. A., 137, Raeburn Avenue, Eastham, Cheshire, and ROBERTSON CO., H. H., Grant Building, 3rd Avenue, Pittsburg, U.S.A. Nov. 7, 1933, No. 30923. [Classes 25 and 137.] A ventilator capable of functioning with the wind blowing from any direction comprises an eduction pipe 10 above which is mounted a cap 13 to prevent entry of rain, a storm band 12 being mounted on the tube 10 and having an upwardly projecting baffle 15 spaced by a passage 20 from the cap 13. Deflecting members 26, 29 in the form of a double cone are mounted on the pipe 10 below the member 12, and a lip 40 is provided at the top of the pipe. Wind entering from above flows vertically downwards, and is caused by the member 26 to have a suction effect on the eduction pipe. Horizontal and upward air currents create a suction through the passage 14, the lip 40 preventing air from below from passing upwardly along the eduction pipe.
Patent GB-696235-A (GB)
Title: Improvements in or relating to the preparation of vitamin a and its esters
Inventor: JONES EWART RAY HERBERT
Filed: 1950-12-19
Abstract: The invention comprises 3 : 7-dimethylnona-4 : 6 : 8-trien-1-gn-3-ol of the formula: <FORM:0696235/IV (b)/1> and its preparation in which the lithium sodium or calcium derivative of acetylene is reacted with 6-methylocta-3 : 5 : 7-triene-2-one in the presence of liquid ammonia at or below its boiling point.  The compound may subsequently be converted to vitamin A by treating its Grignard compound with 2 : 6 : 6-trimethylcyclohexanone to produce 3 : 7-dimethyl-1-(11 - hydroxy - 21 : 61 : 61 - trimethylcyclohex-11 - yl) - nona - 4 : 6 : 8 - trien - 1 - yn - 3 - ol which is re-arranged to produce 3 : 7-dimethyl-1 - (11 - hydroxy - 21 : 61 : 61 - trimethylcyclohex - 11 - yl)nona - 3 : 5 : 7 - trien - 1 - yn - 9 - ol which on reduction, esterification and dehydration yields an ester of Vitamin A.  Alternatively said compound may be re-arranged to yield 3 : 7 - dimethylnona - 3 : 5 : 7 - trien-1-yn-9-ol which is reacted with 2 : 6 : 6-trimethylcyclohexanone to yield 3 : 7-dimethyl-1 - (11 - hydroxy - 21 : 61 : 61 - trimethylcyclohex - 11 - yl) nona - 3 : 5 : 7 - trien - 1-yn-9-ol which is then treated as before.  Specifications 659,842, 665,146, 682,690, 687,429 and 692,162 are referred to.
Patent GB-279010-A (GB)
IPC: G03B27/42
Filed: 1926-12-07
Abstract: 279,010. Wykes, H., (Assignee of Chouinard, 0.). Oct. 15, 1926, [Convention date]. Projection printing-apparatus for repeating a unit design on a sensitized surface is provided with co-operating stops 17, 41 between a movable table 8 and its bed 3, one stop being attached to the movable part and the other adjustably attached to a bar 22 having spacing holes 23 secured to the bed 3. The stop 41 is connected to a block 34 by a micrometer 45, and by using this micrometer in conjunction with a pin 38 passing through the block into the holes 23, the stop 41 is located at a distance from a hole 28 in the bar 22 corresponding to the required spacing of the designs. A sleeve 13 attached to the table 8 slides along a rod 10, and the stop 17 can be secured to the sleeve by a clamp 18. After the first exposure, the stop 17, which has been held in registration with the hole 28 by a pin 19, is released and moved until it registers with a hole 44, when it is again clamped to the sleeve. The table 8 is then traversed until the pin 19 can enter the hole 28 for the second exposure to be made.. Spring fingers on the stop 17 enable the approach of the stop to registering position to be felt. A clamp 16 secures the sleeve 13 and the shaft 10 together during exposures. The stop 41 and its micrometer adjustment can be removed as a unit for setting, but minor adjustments for each exposure can be made without its removal. Clamping screws 31 secure the stop to the bar 22 to relieve it from strain. A similar setting means is provided for moving the projector to obtain parallel rows of designs on the table 8. Specification 275,723 is referred to.
Patent GB-443926-A (GB)
Title: Improvements in carburettors
IPC: F02M1/00
Filed: 1934-10-30
Abstract: 443,926. Spray-carburetters. CRAMP, C. E., 14, Foxley Hill Road, Purley, Surrey. Oct. 30, 1934, No. 31089. Drawings to Specification. [Class 7 (iii)] A conical air inlet is provided with two or more plane fins fixed on the inner surface thereof at an angle to the slope of the cone to whirl spirally the incoming air. The air may be supplied by a blower or be deflected into the inlet from the stream from the radiator.
Patent GB-867639-A (GB)
Title: A bin having a loose-hinged lid
IPC: B65F1/16
Filed: 1959-09-12
Abstract: 867,639. Dustbin covers. CRONAN, H. W. Dec. 11, 1959 [Sept. 12, 1959], No. 31145/59. Class 26. [Also in Groups XVII and XXV] A dustbin has a hinged lid, one plate of the hinge being attached to the lid and the other plate d being removably engaged in a sleeve c fixed to the container. A bar b fixed to the run of the lid and projecting therefrom at an angle of 135 degrees abuts the sleeve to hold the lid in its open position.
Patent GB-266080-A (GB)
Title: Improvements in gaiters and stocking protectors
IPC: A41D17/00
Filed: 1925-12-11
Abstract: 266,080. Oliver, M. Dec. 11, 1925. Gaiters. - Stocking protectors of the slip-on type having no fastenings and made of flexible material to simulate the top of a Russian boot are provided with a stiffener on each side. The stiffener is made of fibre board or the like and is housed in a longitudinal pocket B in the gaiter. The drawing shows the inside of the garment. The usual foot strap C is provided.
Patent GB-211551-A (GB)
Title: Improvements in vacuum tubes
IPC: H01J21/02
Filed: 1922-11-17
Abstract: 211,551. Robinson, E. Y. Nov. 17, 1922. Vacuum tubes. - Tubular shields of smail internal crosssection are provided around at least the major portion of the ends of a filament cathode so as to prevent the emission of electrons to the anode from the ends. By this means the upper bend of the characteristic curve may be made very sharp or otherwise modified. The shields may be insulated or connected to the electrodes or their supports. As shown in Fig. 3, the filament 9 is surrounded at the ends by tubular shields 13, 14 mounted on the filament supports, the shield 14 being cut away ,as shown and pinched on to the end of the filament. A helical grid 10 .is preferably longer than the active portion of the filament. The shields may be of conical shape. In a modification a single shield or ellipsoidal shape surrounds the ends of a U-shaped filament, the grid and anode being of ellipsoidal shape. In the arrangement shown in Fig. 5, the end turns 22 of a helical grid 10 are closely wound to form shields having a diameter of about 2 mms. The grid is secured between the parts of a wire 23 by binding wire 24. The shields may be spaced by a stem and may support a helical grid. Perforated shields may be used. The valve may be of the type described in Specification 195,691 having a small inter-electrode space, and the shields may serve to confine the discharge. According to the Provisional Specification the shields may be in the form of discs. Specification 164,175 also is referred to.
Patent GB-896873-A (GB)
Title: Improvements in or relating to screens
IPC: F24B1/192
Filed: 1957-10-08
Abstract: 896,873. Fireplace screens. BULL, W. L. Oct. 3, 1958 [Oct. 8, 1957], No. 31480/57. Class 52(4) An ornamental screen has a front plate 3 to fit into the fireplace opening, or to overlap the surround, there being one or more integrally formed recessed portions 2 capable of receiving a vase &c. projecting into the fireplace. The article is preferably made of polystyrene and a stiffening bead 5 and supporting feet may be provided. Specification 826,586 is referred to.
Patent GB-837305-A (GB)
Title: Weighing apparatus
IPC: G01G13/00
Filed: 1956-10-16
Abstract: 837,305. Automatic feed weighers. ALBATROS SUPERFOSFAATFABRIEKEN N.V. Oct. 16, 1956 [Oct. 25, 1955], No. 31522/56. Class 143 In an automatic feed weigher a weighing receptacle is fed through a closable valve and a vibratory shoot or other device feeds the material from the valve at a velocity Vo which satisfies the equation: where g is the acceleration of gravity; t, is the time during which a valve adapted to be closed at an infinite velocity would remain open to allow the passage of the same quantity of material as the real valve passes between the beginning and end of its closing movement; and t 2  is a constant determined by the sensibility and damping of the weighing beam supporting the receptacle.
Patent GB-1441657-A (GB)
Title: Blow moulding of plastics preforms
IPC: B29C49/00
Filed: 1973-07-03
Abstract: 1441657 Blow-moulding; parisons ILLINOIS TOOL WORKS Inc 3 July 1973 [3 July 1972] 31622/73 Heading B5A In the blow-moulding of a parison by means of a mandrel on which the parison is placed, the parison comprises an inner surface generally complementary to the outer surface of the mandrel but also has a plurality of circumferentially spaced internal protuberances which initially contact the mandrel and provide passageways therebetween for air evacuation therefrom to enable uniform heating thereof by the mandrel. The protuberances may be in the form of knobs or longitudinal ribs. The passageways therebetween disappear on heating to provide, on blow-moulding, an article of uniform wall thickness.
Patent GB-1061694-A (GB)
Title: Improvements in or relating to a wrapper encased package
IPC: B65D71/00
Filed: 1965-07-23
Abstract: 1,061,694. Wrapper-encased packages. H. RUMSEY. July 23, 1965 [July 23, 1964], No. 31635/65. Heading B8C. A tear tab 15 (Fig. 1) on a stiff backing sheet enables an overlying tight transparent wrapper 12 of a package to be torn in a controlled manner so that access is provided to the package contents 10 while the structure of the package is retained. A recess may be provided in the outer surface of the package contents, adjacent to the end of the tear tab, in order to facilitate piercing the wrapper and lifting the tear tab. The wrapper is heat sealed around the package, and may subsequently be heat-shrunk or evacuated. In the embodiment of Figs. 5-7 (not shown) the backing sheet completely surrounds the package contents, and is provided with interlocking tabs and apertures. In the embodiment of Figs. 11-13 (not shown), a viewing window is provided in the backing sheet, and weakening lines (45) enable the tear tab to be lifted from the backing sheet. In this embodiment a tab (44) projects between the package contents. The tear tab may be incorporated in a box structure, which may comprise a tray sliding within a sleeve. A shelf (22, 23); Figs. 2 and 3 (not shown) may be provided between layers of the package contents, by means of strap portions on the backing sheet. In the embodiment of Figs. 8-10 (not shown) a base portion (35) of the backing sheet is longer than the package contents, so that the side walls (36, 37) slant inwardly, enabling the locking tab and recess (41, 40) to be inter-engaged without distorting the contents. The tear tab may be attached to a lug (65), Figs. 17-20 (not shown), which is inserted between the package contents without surrounding them, and in this case the tab may be completely removed from the package after tearing the wrapper by means of the tab. The material of the tear tab and backing sheet in all embodiments may be paperboard, fibreboard or a plastics material stronger and more rigid than that of the wrapper.
Patent GB-1014125-A (GB)
Title: Thread take-up device in a lock stitch sewing machine adapted to produce chain stitches
IPC: D05B1/14
Filed: 1964-08-04
Abstract: 1,014,125. Sewing machines. SINGER CO. Aug. 4, 1964 [Aug. 7, 1963], No. 31663/64. Heading D1G. A lock stitch sewing machine modified to produce chain stitching comprises a looptaker including a bobbin-supporting case, needle thread takeup means, thread loop engaging means for detaining each needle thread loop manipulated by the looptaker until said loop is entered by the needle on the succeeding work penetration, means for removing the needle thread loops from the thread loop engaging means after every entry of the needle, and auxiliary means adapted to reduce the quantity of thread slackened by the take-up means by an amount at least equal to the length of the thread loop removed from the thread loop engaging means, whereby the thread necessary for manipulation by the looptaker must be obtained by setting the previously removed thread loop. As described, the arrangement is a modification of the machine described in Specification 1, 011, 878. In Fig. 6 an auxiliary thread guide 300 is secured by a screw 301 to the bracket arm to permit of limited adjustment alongside the path of movement of the needle thread take-up lever 20. The thread from the take-up eyelet 23 is then passed through the auxiliary eyelet 300 before being passed through the guide 24, whereby the descending lever 20 cannot supply sufficient slack thread, and thread for expanding the seized loop around the bobbin case is taken from the previous loop to set the latter before the loop detained on the loop engaging finger is released therefrom. In Fig. 7 a plate 390 which replaces the bobbin and carrier a projection 396 engagable with the aperture 87 in the thread loop engaging finger 86, is formed with a thread-camming surface 310 adapted to enlarge the loop being spread by the beak 33, whereby thread is drawn from the preceding loop to set the latter.
Patent GB-444037-A (GB)
Title: Improvements in or relating to submersible electric motors
IPC: H02K5/132
Filed: 1934-11-05
Abstract: 444,037. Motor casings. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ROBINSON, R. H., c/o General Electric Co., Ltd., Witton, Birming- ham. Nov. 5, 1934, No. 31727. [Class 35] A submersible motor comprises a casing 1 communicating with a chamber 2 disposed between the rotor of the motor and the driven device, for example, a pump 8, through a desiccator 16. The motor may be of the squirrel cage type and the shaft is either integral with the pump shaft or coupled thereto, as shown. The lower bearing 4 has an air-tight gland 15 so that communication between the chambers 1, 2 is possible only through the breather 16 containing a desiccant such as calcium chloride. To prevent interchange of air between the chambers 1, 2 an oil seal may be provided and the desiccant is associated with the motor casing atmosphere. The desiccator, with or without an oil seal may be accessibly disposed in the air external to the casing and the chamber and connected thereto by pipes, each pipe having a cock to permit refilling of the desiccator whilst maintaining the pressure in the chambers.