baber/WOPTO huggingface dataset:
Patent GB-251390-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: B04B9/12
Filed: 1925-03-10
Abstract: 251,390. Broadbent & Sons, Ltd., T., and Broadbent, H. March 10, 1925. Driving, suspending, balancing.-A centrifugal machine used for separation, clarification, nitration and the like, has a cage a on a vertical shaft b driven by an overhead motor e and revolving in a self-aligning bearing carried by the upper part of the framework c. The bottom end of the shaft is supported in a double thrust and roller bearing, f housed in a rubber or other flexible buffer g carried in the casing h, which is slung by three suspension bolts i<1>, i<2>, i3 on columns from the foundation plate.
Patent GB-790886-A (GB)
Title: Improvements in or relating to error indicators for air fire target practice
IPC: F41J5/06
Filed: 1956-03-02
Abstract: 790,886. Targets. SVENSKA AEROPLAN AKTIEBOLAGET. March 2, 1956 [March 9, 1955], No. 6588/56. Class 20(1) [Also in Groups XXXVIII and XXXIX] A microphone 2, having a non-magnetic acoustic diaphragm carrying an armature at or near its centre, is used to detect shock waves produced by a projectile fired at a target towed by an aeroplane and, provided a shockwave has an intensity above a predetermined value, the microphone output operates recording apparatus in the aeroplane to record a hit. The microphone 2 is resiliently mounted on a metal frame 45 secured in a hollow streamlined body 1 through the nose of which a towing cable, including two conductors for the microphone is introduced and clamped to the frame. The tail of the body contains a rod 47 attached to the frame and connectible to a target. The centre portion of the body 1 surrounding the microphone 2 comprises two perforated metal cylinders covered with metal 'gauze.
Patent GB-706530-A (GB)
Title: Indicating device
IPC: G01S7/06
Filed: 1952-03-13
Abstract: 706,530. Optical apparatus. RAYTHEON MANUFACTURING CO. March 13, 1952 [Aug. 23, 1951], No. 6605/52. Class 97(1) [Also in Group XL(c)] An indicator arrangement for use in conjunction with a P.P.I. display in a radar system comprises a transparent plotting screen mounted above and substantially parallel to the screen of the display cathode-ray tube with a half-silvered mirror disposed substantially midway between the two screens, means being provided for compensating for the curvature of the cathode-ray-tube screen to reduce parallax between this screen and the image of the plotting screen in the half-silvered mirror. The plotting screen is edge-illuminated so that marks made with a crayon on the plotting screen are illuminated and appear as reflections in the mirror superimposed upon the display on the cathode-ray-tube. In the arrangement illustrated compensation is achieved by giving the plotting screen 20 an equal and opposite curvature to that of the screen 18 of the cathode-ray-tube. A mirror 23 is arranged with its upper half-silvered surface midway between the upper surface of the screen 20 and the inner fluorescent surface of the screen 18. Edge-illumination of the screen 20 is achieved by tamps 22 arranged in a housing around the edge of the screen. In a modification, Fig. 3 (not shown), the plotting screen is flat, compensation being achieved by constructing the mirror with a similar curvature to that of the cathode-ray-tube screen but with twice the radius of curvature. In a further arrangement, Figs. 4 and 5 (not shown), a divergent lens is arranged betweeen the mirror and the cathode-ray-tube, both the plotting screen and the mirror being flat.
Patent GB-468262-A (GB)
Title: Improvements in or relating to the combustion chambers and valves of internal combustion engines operating with six or more strokes to each cycle
IPC: F02B75/02
Filed: 1936-03-05
Abstract: 468,262. Six-stroke engines. ADEY, J. E. March 5, 1936, Nos. 6620, 21872, and 33483. [Class 7 (ii)] In an engine operating with six or more strokes to the cycle, the charge, after being induced into the cylinder and compressed by the piston, is separated into two or more parts in a divided combustion chamber 2, 3, before or after ignition, by a valve operated so that the impulse of each part acts successively on the piston ; an induction and a compression stroke are thus followed by at least two expansion and exhaust strokes. In Fig. 1 the combustion chambers are divided by a valve 5 operated by a cam 14 on a shaft driven at one-third crank-shaft speed. The cylinder inlet and exhaust valves are at the side, the exhaust being lifted twice by cams 13 at the end of each expansion stroke. Separate sparking plugs 16, 17 are provided. In a modification, the inlet valve is arranged in the chamber 2. The valve 5 may be closed by a cam and opened by a spring. In Fig: 6, a pair of combustion chambers 29, 30, each having its own opposed inlet and exhaust valves and sparking plug, are connected to the cylinder by ports 39, 42 in rotating conical valves 38, 41. In Fig. 10, a conical valve 52 rotates coaxially with the cylinder and connects combustion chambers 57, 58 with the cylinder by a common port 54. In Fig. 11, oscillating piston valves 85 divide the combustion chamber into two compact chambers 78 arranged side-by-side and each having opposed inlet and exhaust valves and a sparking plug. Baffles on the piston or the cylinder head limit the clearance to the two chambers 78. The engine may operate by compression ignition, the sparking plugs being replaced by liquid-fuel injectors. One of the Provisional Specifications describes arranging the two parts of the divided combustion chamber on opposite sides of the cylinder.
Patent GB-1380497-A (GB)
Title: Purification process
IPC: C07C17/38
Filed: 1972-02-14
Abstract: 1380497 Purification of chlorinated hydrocarbons IMPERIAL CHEMICAL INDUSTRIES Ltd 3 May 1973 [14 Feb 1972] 6695/72 Heading C2C Contaminants comprising ferric chloride are removed from a chlorinated C 1-2  hydrocarbon having at least 3 Cl atoms per molecule by contacting with active carbon. The process is particulaly useful for removing contaminants from a chlorinated hydrocarbon-fractionation unit by withdrawing a portion of the solution, contacting with active carbon and returning the purified solution to the unit. In the examples sym - tetrachloroethane, 1,1,1 - trichloroethane and 1,2,2-trichloroethane are purified.
Patent GB-1224501-A (GB)
Title: Improvements in lubricating spandex yarns
IPC: D01F6/72
Filed: 1968-02-12
Abstract: 1,224,501. Wet-spinning spandex yarn. UNION CARBIDE CORP. 12 Feb., 1968 [23 Feb., 1967], No. 6755/68. Heading B5B. In a process for wet-spinning spandex yarn wherein the newly formed filaments are passed through an aqueous bath to extract excess solvent the improvement comprises employing in the aqueous bath at least 0À01% by weight of the bath of a water-soluble, non-hydrolysable siloxane-oxyalkylene block copolymer comprising (a) at least one siloxane block containing at least two siloxane units represented by the formula wherein each R group is a monovalent hydrocarbon group, a halogen-substituted monovalent group or a divalent hydrocarbon group and b is 1, 2 or 3, said siloxane block containing at least one of said siloxane units wherein at least one R group is a divalent hydrocarbon group, and (b) at least one oxyalkylene block containing at least one oxyalkylene group represented by the formula -R<SP>1</SP>O-, wherein R<SP>1</SP> is an alkylene group containing from 2 to 10 carbon atoms, said siloxane and oxyalkylene blocks being interconnected by said divalent hydrocarbon group. Among the siloxane-oxyalkylene block copolymers those of the following formula are especially suited wherein Me is a methyl group, m is 0 to 72, n is 1 to 10, x is 3 to 25, y is 0 to 29, z is 2 to 3 inclusive and R<SP>11</SP> is an alkyl group containing from 1 to 4 carbon atoms inclusive. In the examples spandex yarn of 140 denier was spun from a DMF solution containing 20% by weight of a polyester-based polyurethaneurea spandex polymer, pigmented with TiO 2 . The spandex polymer was made from polycaprolactone diol, p,p<SP>1</SP>-methylene diphenyl diisocyanate and ethylenediamine. The yarn was spun into a coagulation bath of water and DMF and then passed into a hot aqueous wash bath containing 0À1 wt. per cent of the said siloxaneoxyalkylene block copolymer. The yarn was then dried over a heated roll and then lubricated with a kiss roll with a finish of 3À6% wt. consisting of 84 wt. per cent of a commercial mineral oil and 16% isopropanolamine oleate prior to final winding on to a take-up package.
Patent GB-716994-A (GB)
Title: Improvements in tobacco smoking pipes
IPC: A24F1/08
Filed: 1952-03-15
Abstract: 716,994. Tobacco pipes. HORMBREY, G. E. Feb. 26, 1953 [March 15, 1952], No. 6760/52. Class 130 A trap chamber e which communicates with the smoke bore c through a bore d is covered by an air-proof removable sleeve f not unitary with the pipe bowl portion and having an unbroken external surface which is substantially completely cylindrical and is substantially flush with external pipe surfaces on either side. According to the Provisional Specification the chamber e encircles the smoke bore c and the sleeve f may be of metal or vulcanite and is made air-proof at the bowl end by a washleather packing.
Patent GB-162152-A (GB)
Title: Improvements in tooth-brushes
IPC: A46B9/04
Filed: 1920-03-05
Abstract: 162,152. Brown, G. A. March 5, 1920. Tooth-brushes. - A tooth-brush having an ordinary head C at one end has the handle bent back as at a through an approximately semicircular arc on the side opposite to that on which the head C is arranged, the bent-back part having at its end a convex head B for cleaning the interior surfaces of the teeth. Specifications 13142/84, 9826/97, 24166/06, and 124,048 are referred to.
Patent GB-622215-A (GB)
Title: Improvements in or relating to process of forming protective coatings and the coatedproduct
IPC: C25D11/30
Filed: 1946-03-05
Abstract: 622,215. Electrolytic treatment of magnesium. STEVENS, A. H. (Consolidated Vultee Aircraft Corporation). March 5, 1946, No. 6781. [Class 41] A process of forming a protective coating on magnesium, magnesium alloys or articles formed of such materials, comprises electrolytically treating them in an electrolyte containing 0.05 to 10 per cent by weight of phenol, which retards the formation of gases and enters into the coating. The preferred electrolyte contains 22 to 25 per cent by weight of sodium hydroxide, 0.2 to 0.3 per cent by weight of phenol, and 2 to 3 per cent by volume of sodium silicates. The articles may be cleaned by being subjected to a degreasing treatment immersed in an aqueous alkaline solution rinsed, immersed in an acid bath, preferably charged with chromic acid and calcium nitrate, and rinsed in hot water. The articles may also be cleaned electrolytically using direct current. For the protective coating alternating or direct current may be used, after which the articles are rinsed in cold water, then in boiling water and then in chromic acid solution. They are then dried in hot air and dipped in a sealing liquid consisting of zinc chromate primer.
Patent GB-106491-A (GB)
Title: Improvements in or relating to Liquid Suction Apparatus particularly applicable to Explosion Engines.
Inventor: BADIN RAOUL EDOUARD
IPC: F02M37/02
Filed: 1917-05-12
Abstract: 106,491. Badin, R. E. April 15, 1914, [Convention date]. Vacuum apparatus.-Liquid, which may be fuel or cooling water for internal-combustion engines, or lubricating-oil, is raised by suction from a main tank to a subsidiary tank at a higher level, whence it is discharged to the place required, the suction being augmented by the use of a simple or multiple Venturi tube. The apparatus is applicable to aircraft and marine engines and comprises a main tank 1, subsidiary tank 2, and suction chamber 5 connected by a pipe 6 to a double Venturi tube 4 mounted preferably on a back rib of a plane and behind the propeller. The chamber 5 is provided with an air valve 7, contains a float comprising two disks 10, 11, which form ensures a rapid opening of the air valve, and is connected to the main tank 1 through a pipe 8 with a check valve 8<1>. When suction is produced by the tube 4, liquid rises through pipe 8 into chamber 5, raises the float 10, 11 and ultimately lifts the valve 7, thus destroying the vacuum and permitting a discharge of the liquid through the pipe 9 into tank 2 whence it flows through pipe 3 to the carburettor or other part. The apparatus may be utilized as a liquid meter by counting the oscillations of the float. For use on a ship, the tube 4 may be submerged in the water. A hand suction-pump 16 may be used at starting. A form of apparatus is described in which the subsidiary tank 2 is dispensed with and two chambers such as 5 work alternatively, one discharging while the other is filling; the suction is produced by a Venturi tube in the induction pipe between the throttle valve and the engine cylinder. A double Venturi tube may be arranged in the interior of a divergent cone arranged on the engine silencer.
Patent GB-382519-A (GB)
Title: Labelling apparatus for bottles
IPC: B65C3/14
Filed: 1932-03-07
Abstract: 382,519. Labelling-machines. WEISS, J., 50, Franziskaner Weg, Frohnau, Berlin. March 7, 1932, No. 6817. [Class 73.] In bottle labelling apparatus in which the bottles are passed along a support past a label carrier which reciprocates from a label pile to a position in front of the bottle, two label carriers are provided for each support and reciprocate in vertical planes; by these means the output is increased and the machine is of narrow construction. Figs. 4 and 7 show end and side views of one form in which the bottles are fed along a support a, and a vertically reciprocating head h is fitted with a pair of yoke-like members i having pickers k which are damped by reciprocating gumming rollers n and receive labels from oscillating piles o. The support is gapped to permit the movement of the yokes, the gap being temporarily filled when the pickers are in their labelling position by parts a<1> carried by the head. The pickers may be arranged in tandem on one side of the support, and the head may be fitted with four pickers to co-operate with two supports.
Patent GB-510671-A (GB)
Title: An attachment for saucepans and the like
IPC: A47J27/60
Filed: 1939-03-02
Abstract: 510,671. Saucepans &c. HAMMOND, J. March 2, 1939, No. 6849. [Class 66] A metallic or earthenware attachment for saucepans &c., to prevent boiling-over, comprises a saucer-shaped member 1 fitting frictionally within the mouth of the pan and formed with an opening leading to a conical part 3 preferably provided with a tubular extension 2 through which the boiling liquid rises, drain holes 5 provided in the part 1 enabling overflowing liquid to return to the pan. A gauze or other perforated. baffle 7 may be provided, preferably in the extension 2, when that part is present.
Patent GB-488308-A (GB)
Title: An improvement in or relating to machines for steaming fabrics
IPC: D06C7/00
Filed: 1937-03-09
Abstract: 488,308. Machinery guards. BAILEY, J. March 9, 1937, No. 6861. [Class 80 (iv)] A guard rail h supported by a pivoted rod g at each end extends along the nip of rollers j, c. If the hand of an operative is caught in the material being treated his body is brought against the rail with the result that a bell-crank m, connected to a rod g, is tilted. to raise a rod d. This normally rests with a notch d<2>, Fig. 2, engaging the frame of the machine. When the rod is disengaged it is forced to the left by a spring f and throws the clutch lever a over into " off " position. The connection between the rod d and lever a is by reduced extension d4 of the rod and sleeve i, pivoted to the lever. The invention is specially intended for use with machines for steaming fabrics.
Patent GB-780878-A (GB)
Title: Improvements in and relating to wall and like plugs for screws
IPC: F16B13/12
Filed: 1955-03-09
Abstract: 780,878. Wall-plugs &c. HUNN, A. E. M. March 9, 1956 [March 9, 1955], No. 6874/55. Class 89(1) A wall-plug comprises a body 1 tapering from a substantially oval cross-section at its leading end 8a to a circular cross-section 6<SP>1</SP> at or near its trailing end. A slit 7, which may be tapered, extends longitudinally from the leading end, and the periphery of the body is formed with, e.g. annular grooves 11 of saw-tooth cross-section. The axial bore 10 may be plain to receive a self-tapping screw, or formed with a thread complementary to the screw 5 with which it is to be used. A truncated conical portion 9 may be provided at the trailing end of the plug. When the plug is inserted in a hole 2 of a wall &c. 3, of substantially the same diameter as cross-section 6<SP>1</SP>, the slit is closed, and then opened to cause the plug to grip the wall, by inserting the screw. The body may have external longitudinal grooves.
Patent GB-287317-A (GB)
Title: Improvements in pipe molds for centrifugal casting machines
IPC: B22D13/10
Filed: 1927-03-12
Abstract: 287,317. Wilder, C. E. March 12, 1927. Casting - machines.-A pipe mould is built up from a tubular shell A of uniform thickness and removable end rings B, D secured thereon. The shell is forged and provided with a conical surface A<1> and set screw b to engage a turned throat ring B and with external screw threads C, a thin slotted flange C<1> and a recess F<2> to engage a driving ring D which is a loose fit on the screw threads to allow expansion but is fixed by a bolt F<1> which is operated by a screw G and engages the recess F<2>. Grooves a<1> are provided for packing to make a water-tight seal when in position in the casting-machine.
Patent GB-343764-A (GB)
Title: Improvements in or relating to convertible furniture
IPC: A47B85/06
Filed: 1930-03-03
Abstract: A combination article of furniture, comprising a framework with leaf members normally forming a table, dinner wagon, or the like, may be used for suspending a rubber bath.
Patent GB-1393851-A (GB)
Title: Devices for securing sheets to surfaces
IPC: B44C7/02
Filed: 1973-02-13
Abstract: 1393851 Sheet fixing device M ASSAEL 13 Feb 1973 6970/73 Heading E2B A device for securing a sheet to a surface M comprises a first member 1f adapted to be secured to the surface M and a second member 2f pivotally connected at one end to the first member so that the second member can move between a position in which, in use, it projects away from the surface M (as shown) and a position in which it is parallel with the surface (Fig 2, not shown) means being provided for holding the second member 2f in these positions. The free end of the second member is provided with a transverse slot 55 for connecting the edge of the sheet the slot 55 when the second member is in its second mentioned position and in use is directed towards the wall or parallel thereto. The means for holding the second member in its extreme positions comprises a stop 62 on the first, member 1f and co-operating heels 63, 64 on the second member. Co-operating hooks 65, 66 are also provided, one on each member. The free end of the second member 2f is a moulding 42f the outer end of which is provided with ribs or notches 58 for frictionally engaging the sheet. The moulding may have two grooves of different widths formed therein (Fig 3, not shown). The first member / is also provided with groove 68 for holding a lining sheet 20f. The edges of the sheets are reinforced 'by strips 57, 57f about which the sheets are folded.
Patent GB-575849-A (GB)
Title: Improvements in or relating to the application of coatings to workpieces
IPC: A43D25/18
Filed: 1944-04-15
Abstract: 575,849. Coating-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., (United Shoe Machinery Corporation). April 15, 1944, No. 6977. Addition to 518,779. [Class 95] A machine of the type described in the parent Specification, wherein each delivery member has a work-contacting part in which is a passage, and wherein each passage is individually supplied with coating material through a tube, said delivery members being guided, with respect to a support, for rectilinear movement and said tubes being connected to said passages in all positions of the delivery members whereby coating material may be passed through the movable delivery members without bending the tubes. The mach:ne comprises a feed wheel, spaced gauges positioned to determine the line. of feed of the work and an adjustable nozzle support for the the spraying of the work. In the Figures, the lower arm 22 of the machine is tilted by a treadle, not shown, to cause the feed rolls 16 and 18 to grip the work S, which is guided by gauges 40 and 42 mounted on the arms 12 and 22 respectively. A band of cement 54 is applied around the margin of a sole by means of a nozzle 60 carried by a tiltable support comprising a forked portion 62 mounted on the arm 12 and an adjustable portion 64 secured to the first portion by a screw 66. Upon the portion 64 is a flange 70, Fig. 2, with an arcuate rib 72 co-operating with a recess on the underside of a nozzle supporting bracket 74 having an arcuate slot 76 for relative adjustment of the two parts which may be clamped together afterwards by the bolt 78. Arms 80 and 82 on the bracket 74 are joined by an arched portion 84 supporting flanges 86 and 88 at the upper end of a nozzle block 90 which lies between the arms 80 and 82 and is positioned by an abutment screen 92. A bifurcated clamp 94 mounted on a rod 96 extending through the block 90 bears against the under surfaces of the arms 80 and 82 clamping the nozzle in position thereon. The nozzle block 90 has a recess 100, Fig. 3, to take a series of delivery members 102 in-the form of plates with slots 104 to receive upper and lower rods 106 and 108. These guide the members 102 for vertical sliding movement. The delivery members 102 are yieldably held in contact with the upper surface of a sole to be treated by spring fingers 110 on a plate 112 attached to the upper surface of flange 114. In using the machine, the operator presses the sole against gauges 40 and 42 whereupon, by depressing the treadle, the sole is gripped between the feed wheels 16 and 18 and carried automatically around to present successive portions of its margin to the nozzle. The individual delivery members of the nozzle apply stripes forming a band and the action continues until the band of cement 54 reaches the end of the machine. Specification 411,815 also is referred to.
Patent GB-232019-A (GB)
Title: Improvements in or relating to lubricant for use in grease guns and the like
IPC: F16N37/02
Filed: 1924-03-19
Abstract: 232,019. Trier, E. F. March 19, 1924. Lubricants for machinery.- A cartridge for a grease gun consists of a charge A of solid lubricant enclosed in a metal or other grease - proof tube B formed at either or both ends with a Bange B<1> and fitted at each end with a removable cap, and made of such a size as to be fitted in a gun D to allow the charge to slide thereinto. The charge may be in two or more shorter parts. Advertisements, directions, &c. may be placed on the outside of the tube B.
Patent GB-622366-A (GB)
Title: Improvements relating to the mounting of instruments
IPC: F16F7/14
Filed: 1947-03-13
Abstract: 622,366. Indicating-apparatus. NEGRETTI & ZAMBRA, Ltd., and DREWE, A. F. March 13, 1947, No. 7048. [Class 106 (iv)] A mounting for an indicating or recording instrument on an engine comprises a flexible non-resilient tube formed by a helical winding of pliant material with interlocking turns enclosing a tubular transmission member. Means for connecting a thermometer casing fixed to a boss 3 to a rigid tube 5 fixed to an engine part comprises a flexible tube 1 fixed in caps 2a, 2b fixed to the tube 5 and boss 3 with reinforcing rings 4 added. A tubular transmission member 6 for a medium, e.g. mercury, is fixed in the cap 2a and centralized by an asbestos plug 7 and hole 9 in the boss 3. The flexible tube 1 is formed by a helical winding 10 of a pliant material of crosssection as shown in Fig. 3 with fibrous packing 13 between each turn and is enclosed in a jacket 14 of metal braid. Specification 490,420 is referred to.