baber/WOPTO huggingface dataset:
Patent GB-1468799-A (GB)
Title: Phosphazene polymers useful as flame retardants
IPC: D06M15/673
Filed: 1973-06-19
Abstract: 1468799 Polymeric phosphazene derivatives COURTAULDS Ltd 18 June 1974 [19 June 1973] 28972/73 Heading C2P [Also in Division C3] The invention comprises a substantially waterinsoluble phosphazene polymer of the general formula wherein n is at least 3, preferably 3 or 4, and in which the P atoms carry (a) substituents OR or SR where R is an unsubstituted or halogensubstituted alkyl or alkenyl group having up to 6 C atoms, C 6 -C 10  aryl group or C 7 -C 10  alkyl-aryl group, the various Rs being the same or different and (b) -OR<SP>2</SP>O- substituents which are either doubly substituted on one P atom to form groups of the Formula II or are substituted on P atoms from different phosphazene polymer units to form crosslinking groups of the Formula III R<SP>2</SP> being an alkylene group of 2 to 6 carbon atoms and the molar ratio of OR and SR groups to -OR<SP>2</SP>- groups being in the range of 2 : 1 to 10 : 1, provided that when SR groups are present in the crosslinked phosphazenes there are sufficient OR groups present to provide the crosslinking groups of Formula III. The products of Formula II may be obtained by reacting a phosphonitrilic chloride with a diol (R<SP>2</SP>OH) 2  in molar proportions of 2 : 1 to 6 : 1 and then reacting with an alcohol or phenol ROH or mercaptan RSH, or alkali metal derivative thereof in an amount sufficient to replace the remaining chlorine atoms of the phosphonitrilic chloride. The crosslinked compounds of Formula III can be obtained by reacting a phosphonitrilic chloride with a compound ROM and optionally a compound RSM wherein M is H or an alkali metal and simultaneously or subsequently with a diol: HOR<SP>2</SP>OH, the reactants being used in specified molar proportions. The phosphonitrilic chloride may be linear or cyclic and may be a pure isomer or mixture of isomers. The substitution reactions can be carried out in the presence of an acid acceptor such as pyridine. Examples are given for the production of products in which the groups present on the P atoms are (1) propoxy and ethylene dioxy, (2) ethoxy and ethylenedioxy, (3) propoxy and -O(CH 2 ) 6 O-, and (4) propoxy and -O(CH 2 ) 4 O-. The products are useful as flame-retardants for regenerated cellulose filaments.
Patent GB-948591-A (GB)
Title: Recording machine for flexible record sheet
IPC: G11B5/004
Filed: 1962-07-27
Abstract: 948,591. Magnetic sheet recorders. ING C.OLIVETTI & CO.S.p.A. July 27, 1962 [July 31, 1961], No. 28992/62. Heading G5R. A magnetic sheet 1 of resilient bristol board carrying two magnetic coatings has a continuous succession of partial tracks recorded alternately on the two faces, by feeding the sheet around an #-shaped path past a head 12 driven incrementally transversely to the direction of scan. Capstans 6,14 with associated pinchrollers 7,13,17,19 feed the sheet which is of a length equal to half the track perimeter, or slightly more, bails 9, 18 guiding the leading edge of the sheet above the ovoid cylindrical guides 5<SP>1</SP>,16<SP>1</SP>. The leading edge of the sheet when passing the head to the left each time engages a trigger 24 to release a pawl 22 temporarily to enable a leadscrew 21 to be driven one turn by friction means 28 and gearing 27, 26. The head may be lifted out of engagement with the record and leadscrew by a hand means 120 for forward and back spacing and means 49 may be operated to control slots in the lefthand guide, through which the record may be loaded or ejected.
Patent GB-1133872-A (GB)
Title: Explosive and method for its preparation
Inventor: GRANT CHARLES HENRY
IPC: C06B47/00
Filed: 1966-06-28
Abstract: 1,133,872. Explosive compositions. DOW CHEMICAL CO. 28 June, 1966 [1 July, 1965], No. 29015/66. Heading C1D. [Also in Division F3] To increase the power obtained on detonation as compared with an explosive having an equivalent amount of fuel distributed uniformly throughout the explosive, a blasting charge consists of two components comprising (1) an inorganic oxidizing ingredient and (2) an over-fuelled mixture containing an inorganic fuel and an inorganic oxidizing agent, placed contiguous to each other in the blast hole. Ingredient (1) may be any of the nitrates of ammonium, sodium, potassium, caesium, lithium, rubidium, or any alkaline earth, or a chlorate of ammonium, alkali metal or alkaline earth, or a perchlorate or complexes of these. Ingredient (1) has a particle size from 5 microns to 5 U.S. Tyler mesh, and may itself contain an added liquid hydrocarbon such as kerosene, diesel fuel or the like up to 10% by weight of the oxidizing ingredient. The inorganic fuel of the mixture (2) may be finely divided carbon, a particulate metal or metalloid such as aluminium or magnesium, or boron, vanadium, chromium, thorium, tungsten, or a mixture of aluminium and ferrosilicon. The oxidizing agent in (2) may be similar to that in (1). The inorganic fuel is present in an amount from 25 to 80% by weight of the mixture (2). This mixture may additionally contain water up to 25%, formamide up to 33%, or a waterswellable polymeric substance up to 6%. The proportions of (1) and (2) may be such that the fuel in (2) provides at least 0.75% by weight and not more than the stoichiometric quantity in (2), based on the total weight.
Patent GB-504196-A (GB)
Title: Improvements in and relating to thermionic valve apparatus
IPC: H03F1/07
Filed: 1937-10-23
Abstract: 504,196. Wireless transmitting systems. FORTESCUE, R. L. Oct. 23, 1937, No. 29032. [Class 40 (v)] An amplifier for supplying modulated carrier to a load comprises two valves coupled to the load and driven with modulated oscillations of different character. The modulation depth of the driving oscillation fed to each valve is different both from that of the driving oscillation fed to the other valve and from that of the oscillation set up in the load. The two valves may be coupled in series or parallel with the load and either or both valves may be replaced by two or more valves connected in parallel, in push-pull, in parallel push-pull, or in cascade. The two valves are preferably biassed and driven as Class C amplifiers and a second pair, similarly arranged but driven in anti-phase, may be coupled to the same load, in order to provide a balanced arrangement. Valve 1 has its control grid coupled by transformer 5 to a source of unmodulated carrier oscillations and its anode connected to earth through condenser 7, inductance 8 and load 9 in series. The sideband valve 2 has its grid supplied through transformer. to from a source of modulated carrier containing a preponderance of sidebands and its anode is connected to earth through condenser 12 and inductance 13 in series. The inductances 8, 13 are coupled and tuned by condensers 7, 12, and-form an impedance-inverting network between the sideband valve 2 and the load 9. The arrangement is such that, in the unmodulated condition, the valve 2 takes no current and during modulation delivers or absorbs power according to the sign of the modulation cycle. The side-band valve may not be biassed to cut-off in the unmodulated condition and may be caused to contribute carrier power by increasing the carrier component in its grid drive. Instead of connecting the valves in series with the load, the valves and load may all be arranged in parallel with one another, Fig. 2 (not shown): The driving oscillations supplied to the valves may be such that both oscillations contain side-band components but one has no carrier component. Specification 471,423 is referred to.
Patent GB-322725-A (GB)
Title: An improved silencer for internal combustion engines
IPC: F01N1/08
Filed: 1929-01-21
Abstract: 322,725. Wieth, R. Jan. 21, 1929. Divided on and addition to 304,616, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan, 21, 1929. Exhaust silencers. - The parent Specification describes a silencer comprising a casing a divided by partitions c, d, e into chambers some of which contain tubes g<1>, h bent almost to circles. The tube g<1> forms part of the inlet tube g and the tube h part of the outlet tube i, both tubes tapering in the direction of gas flow. The outlet end g<2> of tube g<1>, and the inlet end h<2> of tube h are set obliquely to the general plane of the tubes. The partitions c, e are provided with apertures f, and the tube i with apertures k, l. The outlet tube m is provided with a worm n of aluminium. The invention consists in the provision of a chamber o near the inlet end, and communicating with the inlet pipe through holes p and acting as a reservoir in case of excessive flow or pressure; it also prevents pressure accumulation or banking effects from spreading to the engine.
Patent GB-761989-A (GB)
Title: Improvements in and relating to washing and dry-cleaning machines
Inventor: PARSONS ARTHUR
IPC: D06F43/02
Filed: 1953-10-21
Abstract: A washing or dry-cleaning machine has a perforated cage 12 arranged for rotation about a horizontal axis in a stationary drum 10, means external to the drum for supplying clean liquor to the goods continuously through only the upper part of the cage to contact the goods as they are about to topple downwardly under gravity, and means for limiting the height to which soiled liquor can collect at the bottom of the drum so that the cage at <PICT:0761989/III/1> no time dips into that liquor.  At the bottom the drum 10 communicates through a large opening 20 with a well 22 which is connected through a filter 38 and pipe 40 to a pump 34 which returns the liquid through a pipe 32 and inlet 30 to the drum 10. The cage 12 has three perforated lifters 16 and may be provided with outwardly extending ribs 24 which combine with circumferential end ribs 26 to form pockets 28 into which the liquid is delivered from the inlet 30.  In an alternative form (Figs. 3, 4, not shown) the drum 10 is provided with inwardly projecting ribs to define a pocket in communication with the inlet 30, the edges of these ribs being provided with sealing strips of rubber or the like making wiping contact with the periphery of the cage 12.  The filter 38 has a drain pipe 48 connected to an overflow which maintains the desired liquid level. Valves 42, 46 allow a variable proportion of filtered liquor to be recirculated with fresh liquor from a pipe 36.  For rinsing purposes the valve 42 may be closed, fresh liquid being supplied through the pipe 36 and passed to waste through a pipe 44.  A hopper 37 is provided for adding detergents.
Patent GB-392598-A (GB)
Title: Improvements in transverse spring suspension arrangements for road vehicles
IPC: B60G11/08
Filed: 1931-10-21
Abstract: 392,598. Vehicle suspensions; lamin. ated springs. GODMAN, T., Cainscross House, Cainscross, Stroud, Gloucestershire. Oct. 21, 1931, No. 29214. [Classes 108 (ii) and 108 (iii).] In transverse spring suspension for vehicles, especially the steering wheels of motor vehicles, comprising a pair of transverse parallel leaf springs 1a, 1b one above the other, and connected at their ends to the road wheels 2, screw-threaded adjusting means are adapted to give longitudinal movement to one of the springs in order to adjust the attitude of the vehicle to a vertical plane. The lower spring 1b is carried from a transverse frame part 4 by a bracket 3 and bolts 5 which allow the spring to have sliding movement. The position of the spring is adjusted by means of a stud 6 fitted in a plain hole at each end of the bracket 3 and screwing into a tubular socket 8 having a base 9 which receives the head of a stud 10 fixed in the spring.
Patent GB-627863-A (GB)
Title: Improvements in and relating to the conditioning of material, especially glass, for the drawing therefrom of fibres
IPC: C03B37/085
Filed: 1946-10-01
Abstract: 627,863. Melting-furnaces. SCHLEHR, W. R. Oct. 1, 1946, No. 29279. [Class 51 (ii)] [Also in Groups XXIII and XXXV] Describes an air lock substantially the same as that described in Specification 627,585. Reference is also made to a three-section resistance- or inductionheated glass furnace as shown, wherein a drawing chamber 68 is under pressure of a liquid head 69 maintained by flow over the top of a tube 78 in an intermediate refining chamber 67 to the bottom of which glass is fed from a melting chamber 66 through a passage 74. When the glass at 69 drops below the adjustable electrode 83, raw material is supplied from a feeder 72 under control of a device similar to that described in Specification 627,585, baffles 75 are provided in the melting chamber 66, and the refining chamber 67 has an outlet 87 to atmosphere or to a vacuum source.
Patent GB-445681-A (GB)
Title: A device for consulting annuals, time-tables, directories and like books
IPC: A47B19/04
Filed: 1935-10-24
Abstract: 445,681. Book receptacles. GRENEE, L. F., 11<bis>, Rue de Squeville, Fontenaysous-Bois, Seine, France. Oct. 24, 1935, No. 29347. Convention date, Oct. 24, 1934. [Class 52 (i)] A holder for directories, time tables, &c. consists of a casing m into which the book a slides down as it closes. In the casing is a carrier b with prongs c serving to retain the book, with a handle e, with counterweight fittings j, n, l antifriction rollers i, and a chain &c. h which closes the lid g. A rubber buffer d is fitted in the base of the casing. When the carrier b is raised, the book throws over the lid g, and the book may be opened at the top of the casing.
Patent GB-888902-A (GB)
Title: Improvements relating to liquid fuel burners
IPC: F23D3/00
Filed: 1959-08-28
Abstract: 888,902. Wick burners. SHERWOODS Ltd. and SHERWOOD, S. H. Nov. 28, 1960 [Aug. 28, 1959], No. 29397/59. Class 75(1) A tubular wick burner comprises a gallery 3 detachably secured to a body 2 detachably secured to a collar 1 received in a fuel tank 5, and a pivoted latch 19 has a tongue 20 which engages registering openings in the body and collar to prevent disconnection of the body and collar. The latch 19 is pivoted to the body and its free end extends through a slot 22 therein. The latch may be spring biased. The body is attached to the collar by a bayonet fastening comprising a pair of angle sectioned claws 18 on the body and a flange on the collar, the flange having cut away portions for the entry of the claws.
Patent GB-942819-A (GB)
Title: Improvements in or relating to manufacture of articles from strip metal
Inventor: LLOYD REGINALD JOSEPH
IPC: B21C47/34
Filed: 1960-08-26
Abstract: 942,819. Feeding webs. HUMPRIS & SONS Ltd. Aug. 3, 1961 [Aug. 26, 1960 No. 29521/60. Heading B6B. [Also in Division B3] An apparatus for feeding strip material comprises means for driving a reel to unwind the material thereon in a direction away from the machine, means for guiding the material under the reel to feed means of a following machine thereby forming a loop in the material on the side of the reel remote from the machine, and control means operated by the loop to control the drive means of the reel and maintain the loop between a minimum and maximum position. A reel 10 is driven by a constant speed motor 14 through an electromagnetic clutch 12 and a gear-box 13 and braked by a brake 15. The strip forms a loop 17 which when it becomes too large cuts a light beam 22 and through a photo-cell and control unit 21 disengages the clutch 12 and if necessary applies the brake 15. The strip then passes under the reel to a pair of feed rolls 16 and measuring rolls 19 associated with a cutting or fabricating machine 20. A safety switch comprising a roller 23 carried on a pivoted arm 24 switches off the machine 20 if the loop becomes too short. Tension in the strip is maintained by pivoted arm 26 which has a roller 25 rotatably mounted thereon. In a modification (Fig. 2, not shown) the clutch is replaced by a variable speed unit which is controlled by three photo-cells. Two of the photocells vary the output speed of the unit so that the loop cuts the light beam to one of the cells, but not to the other, and the third photo-cell reduces the output speed to zero and applies the reel brake when the loop becomes sufficiently large to cut it. A further photo-cell switches off the fabricating machine when the loop becomes so small it no longer cuts the light beam to that cell. Specification 942,820 is referred to.
Patent GB-830166-A (GB)
Title: Improvements in or relating to bobbins for yarns or threads
IPC: D03D51/34
Filed: 1957-09-19
Abstract: 830,166. Bobbins for automatic looms. REDAELLI, E. Sept. 19, 1957, No. 29537/57. Classes 120(3) and 142(2). A bobbin, for example for an automatic loom, comprises two parts 4, 5 held together by the turns of yarns thereon and urged apart by a spring 8 housed in a space between the part 4 and an extension 5<SP>111</SP> of the part 5. The parts 4, 5 are mounted on spindles carrying flanges 2, 3, and rotative rotation of the parts is prevented by a peg 12 on the part 4 engaging a groove 13 in the part 5<SP>11</SP>. When only a few turns of yarn remain on the bobbin the spring forces the parts 4, 5 to separate and a feeler member 11 is moved to actuate signalling mechanisms or a stop motion or to bring about automatic bobbin replacement.
Patent GB-652586-A (GB)
Title: Improvements in or relating to reduction gearing
IPC: F16H1/20
Filed: 1948-11-15
Abstract: 652,586. Bearings. KING, D. M. Nov. 15, 1948, No. 29600. [Class 12 (i)] [Also in Group XXIV] In a reduction gear, a housing 10 is arranged horizontally and the weight of each of the vertical shafts 15, 18, 21 is carried by a thrust bearing comprising two balls 26, one of which has a small flat ground thereon. The balls are seated in depressions formed in the shaft and in a cap 28. Oil-tight sealing-means are provided for the shafts and dip-sticks may be provided to check the oil level in the unit.
Patent GB-427495-A (GB)
Title: Preservation of rubber
IPC: C08K5/18
Filed: 1933-10-25
Abstract: The ageing of rubber is retarded by addition to the mix of N, N1-diphenyl-2 : 6, or 2 : 7-naphthylenediamine.  The Specification as open to inspection under Sect. 91 comprises p  also the use as anti-agers of any compound of the general formula R-NH-A-NH-R1, where A represents a naphthalene nucleus, and R and R1 represent the same or different members of the group comprising alkyl, aralkyl, or aryl groups.  The aryl nucleus may contain one or more hydroxyl, alkyl or alkoxyl groups.  The term aralkyl means an alkyl group having at least one hydrogen substituted by an aryl nucleus.  A large number of examples of compounds are included.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1519333-A (GB)
Title: Processes for production of metal layers and products produced thereby
IPC: C23C18/28
Filed: 1975-07-16
Abstract: 1519333 Sensitizing substrates for electroless deposition KOLLMORGEN CORP 16 July 1975 29768/75 Heading C7F Articles with metal layers are produced by applying to a substrate e.g. glass, ceramic, porcelain, resin, paper, cloth which may be metal clad a radiation-sensitive composition of pH 1À6 to 41 and comprising 0À9 to 25 milliequivalents per litre of chloride, bromide or iodide ions, one or more reducible salts of non-noble metal(s), a secondary reducer which alone is incapable of reducing the metal ions and a radiation-sensitive agent which alone or with the secondary reducer is capable of reducing the metal ions on exposure, uniformly exposing the composition to reduce the metal salt(s) to metallic nuclei and then applying an electroless plating solution to form the layer. Preferred reducible salts are salts of Cu, Fe, Co or Ni and preferred halide sources are hydrohalic acids and Cu, Ni, Co, Na, K, Li, and Mg halides. The electroless deposited metals are Cu, Ag, Au, Co, Sn, RL, Zn and Ni and acids such as fluoboric, citric, lactic, phosphoric, sulphuric or hydrohalic are used to provide the desired pH. Additional metal may be electrolytically plated on the metal layer.
Patent GB-737636-A (GB)
Title: Improvements relating to machines for generating tapered gears
IPC: B23F9/10
Filed: 1953-10-28
Abstract: 737,636. Gear-cutting. GLEASON WORKS. Oct. 28, 1953 [Oct. 29, 1952], No. 29798/53. Class 83 (3). A machine for generating tapered bevel gears comprises work and tool supports 12, 14, a rotatable cradle 13 carrying one of the supports, a reversible drive 29 connected to a generating train connecting the work spindle and the cradle, a differential mechanism 42, 43, 44, 97 in the train, and means 68, 69, 73 for introducing motion through said mechanism for causing the work spindle to operate at a different ratio to the reversible drive in one direction than in the opposite direction. The invention is applied to the work-spindle of a machine of the type described in Specification 680,183. The camslot 69 is formed in the cam 68 secured to the end of the barrel-cam 23 and moves the rack-rod 73 up or down to rotate gears 81, 85, 86 to apply the additional motion in one or other direction to the work-drive shaft 47 according to the setting of the clutch 91. The velocity ratio between the cradle and work spindle, determined by the cam-slot 29 in the cam 23, is thus varied so that, e.g., the rotation of the work gear in which a concave tooth side is cut is less than for the convex tooth while the angle of rotation of the cradle is the same. The rotations of the cradle and work spindle are slower during the cutting of the first side of a tooth space than during the opposite side in view of the greater amount of material to be removed during the first cut when " roughing-out ". The effect of the cam 68 may be increased or decreased, by altering the change gears 85-88, to vary the taper.
Patent GB-1191120-A (GB)
Title: Improvements in or relating to Feeding Tables for Printing Machines
Inventor: KOVAR JAROSLOV
IPC: B65H1/26
Filed: 1967-06-28
Abstract: 1,191,120. Feeding sheets; pile tables. ADAMOVSKE STROJIRNY NARODNI PODNIK. 28 June, 1967 [4 July, 1966], No. 29837/67. Heading BSR. A sheet-feeding device for an offset printing machine including exchangeable feed tables comprises two guide members 4, Fig. 2, each vertically movable on an inner guide bar 5 and having means supporting a feed table 7 with an eccentric pin 3 manually adjustable to maintain the table horizontal, and carriers 2 mounted on chains 1 entrained around chain wheels 6 and guided by outer guide bars 18 fixed to the inner guide bars 5, so that during rotation of the chains the carriers 2 engage the eccentric pins 3 and carry the guide members 4 and hence the feed table 7 with them. In use, a feed table 7 with a complete stack of sheets is manually placed on the angle-irons 8 constituting the support means, and the drive to the chains 1 is started. The feed-table is raised continuously by engagement of carriers 2 with pins 3 (Fig. 1, not shown) while sheets are removed from the top of the stack. When the table is empty at the top of the device the table is removed and the carrier 2 is automatically disengaged from pin 3 (Fig. 3, not shown) where the chain 1 passes over the top chain wheel 6. The guide elements 4 slide back down the guide bars 5 under their own weight, their motion being retarded by a braking device (14, 15, 16), (Fig. 1, not shown) before they reach stops 21. During this downward movement, angle-irons 8 strike the oblique surfaces of resilientlymounted pawls 17 and push them into their respective housings 20 in the next feed table 7; the pawls then spring back into their extended position to co-operate with the angle-irons during the next feeding cycle.
Patent GB-252997-A (GB)
Title: Improvements in operating mechanism for semi-rotary pumps
IPC: F04C9/00
Filed: 1925-11-26
Abstract: 252,997. Etablissements Trouvay et Cauvin. Aug. 29, 1925, [Convention date]. Fixed-abutment type.-In a pump with an oscillatory vane moving across a median inlet valve, of the type described in Specification 249,073, the vane is driven by a rotary cam effecting a single to and fro movement for each rotation of the cam. A wheel 25 revolving on a shaft 23 is secured to the pump by a bracket 20. The wheel has an eccentric groove 26 in which travels a roller 27 connected by a link 28 to the shaft 9 of the vane 7. As the wheel 25 makes a revolution, the roller 27 causes the arm 28 to impart a single to and fro stroke to the vane 7.