baber/WOPTO huggingface dataset:
Patent GB-1088743-A (GB)
Title: Polyphosphonate flame-retarding agents
IPC: C08G79/04
Filed: 1965-01-21
Abstract: Polyphosphonates containing repeating units of formula <FORM:1088743/C3/1> where X is chlorine or bromine, and where R1, R2 and D are hydrocarbon or substituted hydrocarbon groups, or where R1 and R2 may be joined together to form, with the carbon atom to which they are attached, a cycloaliphatic ring, are made by reacting together in acid medium an enolizable ketone of formula <FORM:1088743/C3/2> and a cyclic halophosphite of formula <FORM:1088743/C3/3> Specified for R1 and R2 are alkyl, phenyl, phenylalkyl, alkylphenyl, alkenyl and alkoxycarbonylalkyl and the phenyl groups may be substituted by chlorine.  Preferably D is C2-C3 alkylene or alkyl substituted C2-C3 alkylene. The molecular weight of the polyphosphonates is preferably 800-100,000.  After manufacture the polyphosphonates may be reacted with ethylene oxide to reduce their acid numbers. The polyphosphonates may be used as flame-retardants for various rubbers, addition polymers, condensation polymers and polyurethane plastics or foams.  In Example (1) a solution of phosphonate was added to a solution of poly-(methyl methacrylate) to form a coating composition and in Example (32) a sheet was formed by moulding a mixture of methyl methacrylate and polyphosphonate together with a little glacial methacrylic acid, acetyl peroxide and mould release agent.  In further examples, polyurethane foams were made by foaming a mixture of (a) a sucrose based polyol or a pentaerythritol propylene oxide adduct, polymethylene polyphenyl isocyanate, a polyphosphonate, monofluorotrichloromethane, triethylene diamine and a silicone emulsifier, (b) a diethylene glycol/adipic acid polyester or a polyoxypropylene diol or a triol (OH number 56, molecular weight 3000), toluene diisocyanate, a polyphosphonate, N-ethylmorpholine and water.ALSO:Polyphosphonites containing at least two units of formula <FORM:1088743/C2/1> where X is chlorine or bromine, and where R1, R2 and D are hydrocarbon or substituted hydrocarbon groups, or where R1 and R2 may be joined together to form, with the carbon atom to which they are attached, a cycloaliphatic ring, are made by reacting together in an acid medium an enolizable ketone of formula <FORM:1088743/C2/2> and a cyclic halophosphite of formula <FORM:1088743/C2/3> The latter may be formed in situ by reacting a suitable glycol with PCl3.  Specified for R1 and R2 are alkyl, phenyl, phenylalkyl, alkylphenyl, alkenyl and alkoxycarbonylalkyl and the phenyl groups may be substituted by chlorine.  Preferably D is C2-C3 alkylene or alkyl substituted C2-C3 alkylene.  The polyphosphonates are used as fire-retardants (see Division C3).
Patent GB-264662-A (GB)
Title: Improvements in draught screens for doors and like apertures
IPC: E06B7/20
Filed: 1926-10-19
Abstract: 264,662. Penson, F. A. Oct. 19, 1926. Draught-excluders. -A hinged draughtexcluder for the bottom of a door &c., comprises two strips A resiliently spaced apart by cable casing B or springs and covered with flexible material. The excluder pivots on staples I passing through holes in the top strip A and through eyelets in the covering, and has a guard in the form of a split tube K on its lower edge. The excluder is connected, as by a cable, to an actuating lever C and is depressed on closing the door by the engagement between the lever and a plate H on the jamb. The lever C is pivoted on a bifurcated rivet F in a bracket E and a helical spring on the rivet tends to raise the excluder through a lever D pivoted at its end to the actuating lever.
Patent GB-1412885-A (GB)
Title: Shoe
IPC: A43B13/41
Filed: 1973-01-19
Abstract: 1412885 Boots &c M GRUNER 19 Jan 1973 [19 Jan 1972 5 Dec 1972] 2938/73 Heading A3B  A shoe heel 2 includes an upper main section 3 of relatively rigid material permanently connected with the insole 1 of the shoe, and an inset member 6 of elastic material having a stud 10 which is secured in a vertical through hole 4 in the main section 3. The stud 10 is secured in hole 4 by means of a screw 12 which is screwed into bore 11 to expand the stud. The main portion 3 includes a reinforcing ring 14 surrounding the recess 5 and a packing ring 15 is located between the edge 3a of main section 3 and a flange 8 formed on the inset member 6. The main section 3 is formed with an annular projection 13 surrounding hole 4 and the forked ends 18 of a shank stiffener surround the projection 13.
Patent GB-102295-A (GB)
Title: Improved Belt Fastener.
Inventor: RITCHIE ERNEST GUTHRIE
IPC: F16G3/00
Filed: 1916-02-29
Abstract: 102,295. Ritchie, E. G. Feb. 29, 1916. Belt fastenings.-A fastening for driving-belts comprises a metal strip having on each side spikes 2, 3 turned down in two rows, and a third row of spikes 4 bent down from slots in the plate. Central tongues 6 are bent down into the gap between the belt-ends to position the fastening. The spikes are staggered as shown and may be corrugated vertically, the concave surfaces facing outwards. The plate may be in two parts hinged together by a pin or link.
Patent GB-1445313-A (GB)
IPC: B24D7/18
Filed: 1975-01-23
Abstract: 1445313 Abrasive tools GLEASON WORKS 23 Jan 1975 [6 March 1974] 3062/75 Heading B3D A cup-shaped grinding wheel assembly comprises a first cup-shaped member 12 having a first series of spaced grinding surfaces 14 formed on a projecting rim portion thereof, a second cup-shaped member 16 carrying a second series of grinding surfaces 18 arranged in positions between the positions of the first series, and actuating means for advancing and retracting the second series whereby the second series can be brought into engagement with a workpiece while the first series are out of engagement and vice versa. The member 12 is secured to a mounting block 32 by a spacer 36 and lock-nut 38, the block being secured to a spindle 10 by a lock-nut 34. The grinding surfaces 14 are formed on axially projecting rim portions of the member 12 which receive the second cup-shaped member 16 secured thereto by screws 40. An annular chamber 20 in the member houses an annular piston 22 which can move against the pressure of springs 54 when hydraulic fluid is supplied through a conduit 24. An extension 44 of the piston is screw-threaded to a sleeve 46 carrying the second series of grinding surfaces 18. A bearing sleeve 48 depends from the member 16 to support the extension as it moves axially upon movement of the piston 22. Positive engagement between the first and second series is provided by one or more pins 50 engaging slots 52. The second series of surfaces 18 are formed on rim portions which extend radially so that the surfaces 18 align with the surfaces 14. The second series are advanced when a rough grinding operation of, say, the teeth of a coupling are to be ground and may have a layer of relatively coarse diamond particles (62-120 grit) bonded to a steel body. After rough grinding, the second series is retracted so that the first series effects a finish grinding operation, the first series having a layer of silicon carbide, aluminium oxide or fine diamonds (600 grit or finer) on a steel backing. In another embodiment, the second series is retracted by hydraulic pressure.
Patent GB-1370415-A (GB)
Title: Pneumatically powered device for rotating a surgical tool
IPC: B23B45/04
Filed: 1973-01-22
Abstract: 1370415 Surgical drills STRYKER CORP 22 Jan 1973 3085/73 Heading B3C  A hand held, pneumatically operated surgical drill comprises a tubular housing 11, and a self contained replaceable cartridge-type pneumatic motor 46, held against a shoulder 17 in the housing by an end cap 31, screwed on to the housing. The motor comprises an eccentrically rotated sliding vane rotor 77, and air is supplied to, and exhausted from the motor through hoses 148, 132, and swivel adapters 136, 121. A drill 117 is connected to an extension 113 of the motor shaft 55 by a pin 16. Means may be provided to convert the output of motor 46 into reciprocatory movement.
Patent GB-369327-A (GB)
Title: Improvements in or relating to containers for conditioning or maintaining in good condition cigars, cigarettes, tobacco or the like
IPC: A24F25/02
Filed: 1931-01-30
Abstract: 369,327. Conditioning tobacco. TROTTER, J. F. A., Broom Cottage, Angmering-on-Sea. Jan. 30, 1931, Nos. 3097 and 19332. [Class 130.] A container 11 for conditioning tobacco, cigars, cigarettes, &c. is provided with a compartment containing an absorbent pad 16 formed by soaking asbestos in a liquor obtained by exposing calcium chloride or other deliquescent substance to the atmosphere until completely deliquesced, mounting the sheet in a shallow metal tray 17, and baking. As shown, the lid 12 of the box 11 is fitted with a frame 13 in which the pad 16 is housed. The pad may be retained in the tray 17 by metal crossmembers 18 and the tray is held by pivoted catches 19. The pad may alternatively be formed in sections, the junctions between which are covered by the members 18. A perforated cover 14 is hinged to the frame 13 and may be provided with a correspondingly perforated sliding shutter 24 for adjusting the effective size of the perforations in the cover. For preventing any of the material of the pad from falling into the box 11, the cover 14 or the shutter 24 may be covered with or partly constituted by wire gauze and similar material may cover the pad. The moisture content of the box may be indicated by discs 27, 28 treated with cobalt chloride.
Patent GB-127019-A (GB)
Title: Improvements in or relating to Propellers.
Inventor: PAULHAN LOUIS
IPC: B64C11/22
Filed: 1917-03-02
Abstract: 127,019. Paulhan, L., and La ChevardiÞre de la Grandville, H. J. L. M. de. March 17, 1916, [Convention date]. Screw propellers. - Thin metal perforated sheets b are inserted between all or some of the thin wooden plates a which are glued together and submitted to heavy compression. The sheets b are cut so that their edges lie within the edges of the complete blades. The plates a may be formed of alternate ayers of hard and soft wood.
Patent GB-1253273-A (GB)
Title: Sheet separating device
Inventor: WHITE WILLIAM EDWARD
IPC: G03B27/24
Filed: 1969-01-20
Abstract: 1,253,273. Delivering Sheets, EASTMAN KODAK CO. 20 Jan., 1969 [29 Jan., 1968], No. 3204/69. Heading B8R. A pair of superimposed sheets R and C one of which, (R), is slightly in advance of the other, Fig. 3, are separated as they emerge from the nip of rollers 11 and 12 by a member 41 which is pivoted about point 42 by a cam 44 first to engage the exposed advanced portion of sheet R and then to engage the leading edge of sheet C, Fig. 4. The separator may form part of a copying machine, Fig. 1, in which an image on a carrier sheet C is transferred as a latent image to a receiver sheet R by passage of the superimposed sheets between a heated roller 10 and a pressure roller 12. The separated sheet R is brought into contact with a repeatedly useable developer sheet D in the nip between rollers 11 and 12. Sheet D is released from a stop 36 to reach the nip with its leading edge slighly in advance of the sheet R. A separating member 51 is pivoted about a point 52 by a cam 46 to separate sheets D and R in the manner described for sheets R and C. Sheet D is returned to its starting position against stop 36 by way of a passage 34 between guides 32 and 33.
Patent GB-128865-A (GB)
Title: Improvements in Aerial Ropeways.
Inventor: REDFERN CHARLES GEORGE
IPC: B61B12/00
Filed: 1919-02-10
Abstract: 128,865. Redfern, C. G., (Ceretti & Tanfani Soc. Anon.). Feb. 10, 1919. Rope railways.-Terminals and stations for ropeways, with two track cables and one hauling cable, are portable, and include cable sheaves, gears, driving and stopping devices, and devices for gripping and releasing the carriers. In the case of a motive station, a motor also is carried. The station comprises upper and lower frames a, b, Fig. 1, resting on lattice-work or masonry, and carries sheaves e, supports g for the track rail h, and a crossbar to anchor the track cables d. These cables are connected to the station by rails r attached to a sector rail o carried by frames i, l, the frame l being adjustable on the frame i by a keyed joint m for varying the line gradient. The rail o is secured by reversible pins n, Fig. 7a, and may carry guides v co-acting with a carrier guide for ascending tracks.
Patent GB-550209-A (GB)
Title: Improvements in or connected with skid fenders for use in the launching of ships life boats
IPC: B63B23/36
Filed: 1942-03-13
Abstract: 550,209. Ships' fenders. HUNT, J. B. March 13, 1942. No. 3325. [Class 113 (i)] A skid fender for attachment to a lifeboat is formed of a shaped nosing iron or runner 7 secured to the gunwhale by a gripe fitting 14 and secured by a lashing rope 17 to the other gunwhale fitting 19, the runner being formed with brackets 9, 10 for securing distancing blocks 11, 12.
Patent GB-633244-A (GB)
Title: Improvements in or relating to hair winding apparatus
IPC: A45D6/04
Filed: 1948-02-05
Abstract: 633,244. Hair-waving appliances. FARRELL, J. Feb. 5, 1948, No. 3387. [Class 131] A hair-winding apparatus comprises a manually-supported, electrically-driven rotatable member with releasable means for driving engagement with a hair curler. As shown the rotatable member 4 is secured at one end to the spindle 2 of an electric motor, which is enclosed in a casing 1, and at the other end is apertured to receive one end of a curler 6, a resilient catch 11 and a pin 8 being provided to prevent relative axial and rotational movement. The casing is provided with a handle 20 in which there are fixed resistances 21, 22 of different values and operated by push button switches 23, 24 to control the speed of rotation of the curler. In modifications the resistances 21, 22 may be replaced by a variable resistance having its adjustable contact linked to a trigger slidably mounted in the handle, the rotatable member may be driven by the core of a flexible shaft, two electric lamps of different wattage may control the speed and act as indicators and the switches may be replaced by a foot-operated member in a form adapted to rest on the floor. A friction clutch adapted to slip before the hair is subjected to undue strain may be provided.
Patent GB-354324-A (GB)
Title: Improvements in and relating to floor coverings and processes for making the same
IPC: D06N3/12
Filed: 1930-01-31
Abstract: A resinous product is formed by heating together, preferably at about 300 DEG  C., a polyhydric alcohol, for example, glycerine or ethylene glycol, one or more oil acids or glyceryl esters thereof or a mixture of oil acids and glyceryl esters, and a polybasic acid or anhydride, for example phthalic acid or anhydride, the proportion of oil acids or glyceryl esters thereof or both being such that more than 50 per cent of the ingredients of the resinous product are constituted by oil acids or their esters.  The oil acids are defined as monobasic acids of the non-volatile type containing more than 10 carbon atoms such as oleic, palmitic, stearic, and ricinoleic acids, and the acids derived by saponification of drying oils such as linseed oil and china wood oil or non-drying oils such as castor oil.  Acidic resins such as rosin may be added.  In an example a tough, sticky, resinous mass is prepared by heating together 171 parts of glycerine, 490 parts of linseed oil acids, 164 parts of china wood oil acids, and 248 parts of phthalic anhydride for 2 hours at 300 DEG C.ALSO:Floor-covering cements are made by mixing with pigments and inert material such as ground cork and wood flour, a resinous product formed by heating together, preferably at about 300 DEG  C., a polyhydric alcohol, for example glycerine or ethylene glycol, one or more oil acids or glyceryl esters thereof or a mixture of oil acids and glyceryl esters, and a polybasic acid or anhydride, for example phthalic acid or anhydride, the proportion of oil acids or glyceryl esters thereof or both being such that more than 50 per cent of the ingredients of the resinous product are constituted by oil acids or their esters.  The oil acids are defined as mono-basic acids of the non-volatile type containing more than 10 carbon atoms such as oleic, palmitic, stearic, and ricinoleic acids and the acids derived by saponification of drying oils such as linseed oil and china wood oil or non-drying oils such as castor oil.  Acidic resins such as rosin may be added.  In an example a tough, sticky, resinous mass is prepared by heating together 171 parts of glycerine, 490 parts of linseed oil acids, 164 parts of china wood oil acids, and 248 parts of phthalic anhydride for 2 hours at 300 DEG  C., to which pigment and ground cork are subsequently added to form the cement.
Patent GB-800971-A (GB)
Title: Vat dyestuffs of the benzanthrone-pyrazolanthrone series
IPC: C09B5/06
Filed: 1955-02-04
Abstract: The invention comprises dyes of the formula: <FORM:0800971/IV (c)/1> in which one R is alkyl, and the other is H, X is H or Cl, Y is H, Cl or Br, and n is a numeral ranging from 0.5 to 2.  They are made by melting with an alkaline condensing agent a N(1)-(Bz.11-benzanthronyl) pyrazoleanthrone containing an alkyl group in the Bz-nucleus, followed, if desired, by halogenation.  The products dye cotton or viscose violet to blue shades.  The starting materials are obtained by condensing pyrazoleanthrones with Bz.1-chloro-Bz-alkylbenzanthrones in alkylformamides in presence of acid-binding agents.  In examples, the following are melted with caustic potash and ethanolamine; (1) N(1) - (Bz.11 - (Bz.21 - ethyl) - benzanthronyl) - pyrazoleanthrone, (2) the corresponding 8 - chlor - pyrazoleanthrone derivative, (3) the N(1)-(Bz.11-(Bz.21-methyl)-benzanthronyl) -pyrazoleanthrone, (4) the corresponding Bz.21-isopropylderivative, (5) the corresponding 8-chlorpyrazoleanthrone derivative of this last, (6) N(1)-(Bz.11-(Bz.31-methyl)-benzanthronyl) - pyrazolanthrone.  Also in examples the products of (1), (2) and (3) above are each chlorinated with sodium chlorate and hydrochloric acid, the products of (3) and (4) are chlorinated with sulphuryl chloride in nitrobenzene, and the product of (6) is brominated in chlorsulphonic acid.  Specification 298,284, [Class 2 (iii)], is referred to.
Patent GB-1376842-A (GB)
Title: High intensity arc lamp
IPC: H01J61/98
Filed: 1972-01-25
Abstract: 1376842 Gas discharge lamps VARIAN ASSOCIATES 25 Jan 1972 [25 Jan 1971] 3468/72 Heading H1D An arc gas discharge lamp comprises a base 10 and an optical window 18 separated by a ceramic cylinder 11, an anode 70 adjacent the base and a cathode 32 adjacent the window and a reflector 33 within the lamp and supported at the window side of the arc gap. Suitable materials are: for the base 10, steel; for the sleeve 11 alumina and for the window sapphire. The various annular mounting members for the window 18 can be of Kovar (Registered Trade Mark). A heat radiation assembly can be attached to the base 10, see Fig. 3 (not shown). A typical filling is xenon at 25 atmospheres and the electrode spacing is about 2 cm.
Patent GB-915401-A (GB)
Title: Improvements in and relating to landing skids for aircraft
IPC: B64C25/66
Filed: 1959-01-30
Abstract: 915,401. Skid undercarriages for aircraft. SUB-AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Jan. 30, 1959 [Feb. 6, 1958], No. 3470/59. Class 4. A skid-type undercarriage for aircraft coinprises a skid member 1 secured by shock absorbers 3, 4 to a member 2 which is mounted for retraction about a fore-and-aft axis under the control of a jack (not shown) the mounting of member 2 comprising also a torsion shockabsorber. Each skid carries at its rear end a wheel 6 mounted on an axle 8 carried by an arm 12 pivotally mounted at 14 to skid 1. Arm 12 has a pivotal connection with the piston rod 18 of a jack 19 anchored at 20 to the skid. Contraction of the jack will swing the wheel from the inoperative position shown to a position in which it extends below the groundcontacting surface 24 of the skid. It is stated that mechanism is provided which will permit the wheel to retract to the position shown in Fig. 7 when the load imposed on the wheel exceeds the normal loading by a predetermined amount. Pilot operated mechanism may be provided to enable the wheel to be retracted or extended at will. The shock absorbers 3 and 4 are of similar construction except that the plunger element of the rear one is of greater length than the front one and the front shock absorber carries a scissors linkage 5. In Fig. 10, the front unit comprises a cylindrical casing 26 secured to member 2 by a pivot 27 and a lower telescoping casing 30 secured by a pivot 32 to skid 1. The casings 26 and 30 enclose a stack of metal discs 34 and rubber rings 33 held in engagement by a backing plate 35 secured to casing 26 by a bolt 36. Specifications 726,573 and 821,874 are referred to.
Patent GB-1168704-A (GB)
Title: Improvements relating to Rotary Plug Valves.
Inventor: GIST JOHN FREDERICK
IPC: F16K5/16
Filed: 1967-01-24
Abstract: 1,168,704. Duplex filter. G. & A. FIRKINS Ltd. 24 Jan., 1968 [24 Jan., 1967], No. 3506/67. Heading B1D. [Also in Division F2] A rotary plug valve in a duplex filter 10, 11, comprises a plug formed with two oppositely tapering portions 17 and 25 coupled by a recess 24 and a spigot 26 so as to be rotatable as a unit, and also connected by a spindle 27 screw-threaded into the portion 25 so that the portions can be axially adjusted by a handle 28 to take up wear. The plug is rotated by a handle 21 to control flow through the inlet 12 and outlet 13 by way of the filter 10 or filter 11. The inner part 22 of the portion 17 is cylindrical and has sealing members 23 and 30 to prevent leakage from one flow path to the other. Lubricant can be supplied from a nipple 35 through the spindle 27 and passages 34 to the faces of the plug.
Patent GB-1453114-A (GB)
Title: Manufacture of brake drums
IPC: B21D53/34
Filed: 1974-01-25
Abstract: 1453114 Forging MOTOR WHEEL CORP 25 Jan 1974 [29 Jan 1973] 03514/74 Heading B3H An out-of-round sintered metal powder brake drum ring 10 is sized in a die 20 which has a frusto-conical surface 22 which engages the outer surface of the ring as it is moved relative to the die to first bend the outer surface of the ring into complete contact with the die surface and then radially compress the ring beyond its elastic limit. The ring is pushed into the die by a ram 40 or alternatively the die is pushed over the ring. A central pilot core 26 provides a flat surface 30 over which the ring is moved by a pusher 41 onto the upper surface 38 of an ejector 32 which may be spring-biased upwards. The sized ring does not contact the pilot core at the limit of its axial movement into the die. The ejector is operated by an hydraulic ram 60 through rods 58 . The metal powder of the ring may be iron mixed with graphite and wax. The ring forms the brake track of a brake drum. The die and workpiece may be lubricated.
Patent GB-371499-A (GB)
Title: Propellers and air-screws
IPC: B64C11/24
Filed: 1931-02-04
Abstract: 371,499. Screw propellers. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G. and WYLIE, H. N., Whitley, near Coventry. Feb. 4, 1931, No. 3551. [Class 114.] A single blade for a propeller is formed from a metal tube of uniform outside or inside diameter, in general with a tapering wall thickness, is pressed directly to aerofoil section with a straight leading edge 9. The tip is then trimmed off as shown in the Figure or alternatively to a square section and riveted on the trailing edge. Alternatively, the edges on the trimmed-off portion are pressed together and rivets are passed through filling-in pieces which'preserve the run of the blade. The root is either left plain, or swaged up, or has a riveted-on flanged, thick-walled socket.