baber/WOPTO huggingface dataset:
Patent GB-1417015-A (GB)
Title: Aqueous polyamide resin solutions or suspensions
IPC: C08L77/00
Filed: 1972-12-13
Abstract: 1417015 Polyamides DIAMOND SHAMROCK CORP 13 Dec 1972 [8 Nov 1972] 57501/72 Heading C3R [Also in Division D2] A resin is made by: (A) reacting (I) a polycarboxylic acid or ester or anhydride thereof and (II) a polyamine containing at least 2 primary and at least 1 secondary or tertiary amine groups; (B) removing any water and/or alcohol, (C) reacting the thus-formed polyamide (P) with a polyamine containing only one primary amino group to cap all free carboxylic groups on (P), (D) adding water so as to form a uniform solution, (E) reacting with a C 1-12  dihalide to extend the chain, (F) adding water in amount dependent on the desired final-product concentration and (G) reaching with equimolar quantities of an optionally alkyl-substituted epihalohydrin. (I) is (a) a C 4-12  saturated dicarboxylic acid, (b) a C 5-12  non-dicarboxylating unsaturated dicarboxylic acid, (c) a C 6-10  saturated or non-dicarboxylating unsaturated tricarboxylic acid, a mono- or di-C 1-12  ethyl ester of a C 2-12  saturated or unsaturated dicarboxylic acid, (e) a mono- or di-C 1-12  alkyl ester of a C 6-10  saturated or unsaturated tricarboxylic acid; or (f) an anhydride of a C 4-5  saturated or unsaturated carboxylic acid. 0À66-0À99 Moles (II) are present per mole (I). (A) is performed, optionally in enough water to form a slurry, at 15- 240 C. and for 1-20 hrs.; (C) at 70-180 C. for -3 hrs.; (E) at 80-120 C. for 1-3 hrs. and (G) at 40-90 C. for 20 min, to 15 hrs. In (G) there is 0À6-1À5 moles or epihalohydrin per mole unreacted secondary or tertiary amino group, but not so much that pH is reduced below 5À0. The resin is added to an aqueous suspension of paper stock in the manufacture of high wet-strength paper, there being by wt. 0À1-5À0 parts resin per 100 parts dry pulp. Or the resin may be applied to partially or completely dried paper. The resins exhibit low self-sizing and degrade easily, thus facilitating the recycling of waste paper and broke.
Patent GB-1317840-A (GB)
Title: Valve assembly for controlling fluid operated double-acting working  cylinders
IPC: F15B13/01
Filed: 1970-12-04
Abstract: 1317840 Fluid operated motor control circuit VOLKSWAGENWERK A G 15 July 1970 [17 July 1969] 57713/71 Divided out of 1291527 Heading F1P A fluid operated double-acting load carrying piston 2 has its opposite sides in conduit connection with service ports A, B in the housing 9 of a 5-way 3-position shuttle valve 10 displaced from its closed central position shown by fluid operated control pistons 11, 12 the control fluid for which pistons is derived from the main inlet port P and is distributed by associated magnetic valves 54, 56 and 55, 57 which when closed serve to stop piston 2 or lock it in an end position; the circuit having a further control valve unit 64 to assist in said stopping and locking of piston 2. With all magnetic valves closed i.e. unenergized the spool 10 is held in the closed position shown by passage of pressure fluid from port P to control spaces 23, 24 through a duct 31, a filter 33, a duct 36 past a so-called storage valve 46, a duct 43 past pre-control valves 37, 38 and ducts 29, 30 leading to control spaces 23, 24. To raise piston 2 and load 3 valve 55 is opened by closing a switch 60 whereby pressure in duct 36 is admitted to ducts 48, 27 resulting in valve 38 being shifted to the left whereby duct 30 and control space 24 is connected to exhaust whilst space 23 is maintained under pressure whereby shuttle 10 is moved to the right. If before piston 2 reaches the upper limit of its stroke switch 60 is opened then space 24 is repressurized and piston 12 and shuttle 10 are returned to the position shown. When piston 2 reaches its upper limit and with switch 60 still closed the piston closes a limit switch 5 which opens magnetic valve 57 thereby admitting pressure to a duct 52 and to the left hand side of valve 46 which is thus moved to the right and connects duct 43 and control spaces 23, 25 to exhaust; spaces 24, 26 already being connected to exhaust by valve 38. Valves 55, 57 are then closed and shuttle 10 is maintained in the right hand position by virtue of friction seals 14, 16. Downward movement of piston 2 is initiated by the closure of switch 59 and consequent opening of valve 54 to admit pressure to a duct 47 so as to open a ball valve 44 and move valve 46 to the left thereby connecting pressure duct 36 with duct 43. Control spaces 24, 26 are thus pressurized and shuttle 10 is moved to its left hand position.
Patent GB-1168846-A (GB)
Title: Improvements in or relating to Light-Sensitive Diazotype Materials
Inventor: MOORE RALF GOWER DAVIES
IPC: G03C1/58
Filed: 1966-12-28
Abstract: 1,168,846. Photo-sensitive diazotype material. GAF CORP. Dec.28, 1966 [Dec.29, 1965], No.57923/66. Heading G2C. A two-component diazotype material comprises a support coated with a diazonium salt and 2- chloro-resorcinol. The light-sensitive layer may also contain silica.
Patent GB-1391891-A (GB)
Title: Extremely low viscosity adducts of lactams
IPC: C08G18/32
Filed: 1971-12-14
Abstract: 1391891 Adducts of lactams and alcohols BAYER AG 14 Dec 1371 [17 Dec 1970] 57947/71 Heading C2C [Also in Divisions C3 and C4] The invention comprises an adduct of a lactam with a monofunctional or polyfunctional alcohol or thioalcohol, or a solution thereof in excess lactam, alcohol or thioalcohol, the adduct, or the solution of the adduct containing 0À3-4 moles alcohol per mole lactam, the amount of thioalcohol being optional, wherein the lactam has the general formula in which X represents a CH group, R represents hydrogen, and m represents 0 or an integer from 1 to 9; or X represents a nitrogen atom, R represents an alkyl radical, a cycloaliphatic radical, an araliphatic radical, a pyridyl radical, or an alkyl-substituted pyridyl radical, and m represents the number 3; and the alcohol or thioalcohol is a compound other than a phenol containing a hydroxy or mercapto group. The adducts are used as solvents for organic compounds and for polymers and as reaction media for polymerization reactions.
Patent GB-1272029-A (GB)
Title: Improvements relating to scanning devices
Inventor: MANLEY BRIAN WILLIAM
IPC: H04N3/02
Filed: 1970-12-07
Abstract: 1,272,029. Deflecting light. MULLARD Ltd. 7 Dec., 1970, No. 58019/70. Heading H4F. [Also in Division G5] A scanning device comprises a light guide GL operating by total internal reflection, a transparent member M spaced from the guide and parallel thereto, and means T for causing an elastic wave to propagate along either the guide GL (as shown) or the member M, Fig. 4 (not shown), whereby local surface distortions S thereof reduce the distance d between the guide GL and member M and permit light from a source S propagating along guide GL to escape therefrom through the member M by frustrated total internal reflection (the phenomenon wherein when light transmissive surfaces are spaced by a distance of less than a wavelength, light energy is coupled from one surface to the other). The guide and member M are suitably of glass and the light and elastic wave may travel in the same or opposite directions, both being absorbed at the other end of the device, e.g. by an elastic wave absorber A. A parallel array of such devices, or a single device with mechanical means for effecting a frame scan component, may be used in a television receiver or a radar display, in which case the source S may be a white light source and a Kerr cell, or a modulated laser, or three coloured sources and modulators which are combined via dichroic mirrors. The elastic waves are either bulk waves, e.g. from quartz or BaTiO 3  transducers applying endwise or lateral pressure to the guide or member M, or they may be surface waves, e.g. from an interdigital comb transducer. The constant spacing required between the guide and the member M may be produced by grinding their opposed surfaces together, or by using glass fibre techniques such as starting with a thick glass rod within a thick glass tube and drawing both down to the required size and spacing. In either construction, ribs or spacers are provided.
Patent GB-1448601-A (GB)
Title: Method of making and treating bias cut fabric
IPC: D06M15/693
Filed: 1973-12-17
Abstract: 1448601 Coated woven fabric BURLING- TON INDUSTRIES INC 17 Dec 1973 58277/ 73 Heading B2E [Also in Divisions Dl and D2] A continuous, spliceless strip of bias-cut fabric in which the angular displacement between warp and filling is greater than 90‹, is made by bias cutting a woven tubular fabric at an angle between 40‹ and 50‹ to the longitudinal axis of the tube to form a continuous strip of fabric, stretching the strip in its width direction. to increase that angle between the warp and filling thread through which the longitudinal direction of the strip passes, the angle after stretching being greater than 90‹, curing a curable liquid binder composition applied to the strip to stabilise the angular positions of the threads and applying an elastomeric composition to the strip. This may be followed by slitting the strip longitudinally of itself into a plurality of continuous tapes. Such a tape may be aligned longitudinally with and wrapped round the elastomeric core of a power transmission belt e.g. a V-belt to form a spliceless covering, or may be used as a hose reinforcement. The warp and weft threads are preferably at a final angle of 90-160‹ e.g. between 110‹ and 135‹. The binder composition may contain resorcinol formaldehyde and/or an elastomer e.g. neoprene. The woven fabric may be of cotton, cotton/nylon or cotton/ polyester. Widthwise stretching of the strip may be by overfeeding to a pin tenter.
Patent GB-1187260-A (GB)
Title: An Improved Apparatus for Elevating Barrels and also for use in Lowering the Elevated Barrels to Ground Level or on to Lorries
Inventor: PARKER WALLACE JAMES
IPC: B66F9/07
Filed: 1967-12-27
Abstract: 1,187,260. Platform elevators; endless conveyers. W. J. PARKER, and W. M. PARKER. 24 Dec., 1968 [27 Dec., 1967], No. 58641/67. Headings B8A and B8H. A mobile apparatus for raising barrels on to a vertically adjustable platform 38 from which they are lolled on to racks 38b comprises a wheeled frame 1, 2, 3 supporting a pair of driven endless chains 17 which are interconnected by shafts 18 supporting barrel-engaging rollers 19 and which are guided by guides 20. The barrels are rolled up pivoted ramps 21 into engagement with the rollers 19. The platform 38 is guided on the front pair of frame uprights 1 and is provided with sprockets 34, 35 which engage a pair of chains 33 extending between a top cross-member 3a of the frame and the base 2. As shown, Fig. 2, the upper portions of the chains 33 are more widely spaced than the lower portions which prevent the barrels from rolling off forwardly until they are at the level of the platform 38. Two series of pivotally interconnected links 43 interconnected by cross-bars 43a are suspended from the platform 38 to prevent the barrels from bulging the lower portions of the chains 33. The platform is raised and lowered on the uprights 1 by means of a motor 37 which drives the sprockets 34. A sprocket 41, rotatably mounted on the platform, engages one of the endless chains 17 and on rotation thereby, rotates a pair of aims 40 which assist the transfer of barrels from the chains 17 on to the platform. On the platform, the barrels are rotated through 90 degrees about a vertical axis and then rolled over a pivoted bridge member 44 on to the racks 38b. In a modification, the platform 38 is replaced by a smaller platform 45, Fig. 1, which is raised and lowered manually by a hand wheel 46 through a worm and worm-wheel.
Patent GB-1449286-A (GB)
Title: Process for continuously producing composite porous flakes
IPC: C08J3/12
Filed: 1973-12-18
Abstract: 1449286 Porous composite polymer flakes MITSUBISHI RAYON CO Ltd 18 Dec 1973 [29 Dec 1972] 58673/73 Heading C3C Porous flakes comprising a thermoplastic polymer and finely divided inorganic particles are made continuously by mixing 10-75 parts by wt. of the melted polymer with a slurry comprising 25-90 parts by wt. of the inorganic particles, having a maximum particle size of 500 Á, which have been dispersed in 80-95% by wt. (based on the particles, polymer and solvent) of an organic solvent (for the polymer and having a b.p. lower than the softening point of the polymer) at ambient temperature or lower, the slurry having been heated to a temperature at which polymer can be dissolved in the polymer, and then spurting the mixture, under a pressure which is at least the autogeneous pressure of the solvent, through at least one orifice into a zone of lower pressure and temperature so as to rapidly evaporate the solvent and form the composite porous flakes. In the example polyethylene was melted in an extruder 1 and then fed via pump 2 to a vessel 3 where it is mixed with finely divided silicic acid which has been dried in 5, mixed with methylene chloride in 6 and then in a cooled tank 9 before being fed via pump 12 and heater 11 into 3; the dispersion of silicic acid in a solution of the polyethylene in methylene chloride is then fed from 3 into a head tank 14 which is pressurized with nitrogen and then spurted via orifices 16 into 18 where the vaporized methylene chloride is condensed in 19 and the resultant porous flakes are dried in 21 before collection in 23 by means of a conveyer 22.
Patent GB-1221890-A (GB)
Title: Multifrequency tone detector
Inventor: FRIEND JOSEPH JOHN
IPC: H04Q1/457
Filed: 1969-12-02
Abstract: 1,221,890. Telephone exchange receivers. WESTERN ELECTRIC CO. Inc. 2 Dec., 1969 [5 Dec., 1968], No. 58680/69. Heading H4K. [Also in Divisions G4-G6] A tone detector determines which one of a number of signal frequencies is present by counting the number of clock pulses between zero crossings of the received waveform, decoding AND-gates connected to the counter indicating acceptable upper and lower counts for each signal frequency and thereby providing for each frequency a recognition bandwidth to allow for the fact that the signals may originate from different sources at different times and be subject to slight variation. In the 1-out-of-4 multifrequency detector illustrated the received sinusoidal signal is squared and positive or negative going zero-crossings are signalled as spikes to drive a synch. circuit 13 which replaces an input spike with the next occurring clock pulse. The first received zero-crossing spike resets output bi-stables 24 to 27 and, after a one-clock pulse delay introduced by circuit 21, it resets the counter 22 and the recognition bandwidth bi-stables 14 to 17. If the count from this reset point reaches the lower limit 179 of the recognition band of the highest expected frequency an AND gate decoder sets bi-stable 14. If the count proceeds beyond the upper limit 189 of the recognition band an AND gate decoder resets the bi-stable 14. Bi-stables 15, 16 and 17 are similarly set and reset as the count passes through the recognition bands of the lower frequencies. If, as will occur with the reception of one of the four frequencies, the next zero crossing spike occurs when the count lies within a recognition band the operation of gates such as 18, 19 transfers the set state of one of the bi-stables 14 to 17 to the corresponding output bi-stable 24 to 27. Should the count procee. beyond the last range a gate 29 stops the count to prevent recycling and false operation in response to harmonics. Two such receivers may be used in parallel, one for 1-out-of-4 high frequencies, the other for 1-out-of-4 low frequencies, the two sets of frequencies being separated by a filter and the two receivers differing only to the extent of working with different clock frequencies.
Patent GB-1336843-A (GB)
Title: Method and apparatus for making an elastomeric annular seal with enclosed garter spring
IPC: F16J15/32
Filed: 1970-12-10
Abstract: 1336843 Shaft seals FEDERAL-MOGUL CORP 10 Dec 1970 [6 Jan 1970] 58740/70 Heading F2B [Also in Division B5] An elastomeric annular seal (e.g. for a roll shaft in a metal rolling mill) comprises a steel mounting case 22 (Fig. 2), a natural or synthetic rubber, or nitrile silicone, sealing element 24 bonded to the case, and an embedded spring- or stainless-steel garter spring 26. The ends of the spring are connected as shown in Fig. 5. The elastomeric material fills the annular space through the spring convolutions.
Patent GB-1223060-A (GB)
Title: Method of and apparatus for weighing smoking tobacco
Inventor: FOCKE HEINZ
IPC: G01G17/02
Filed: 1968-12-11
Abstract: 1,223,060. Weighing apparatus. H. FOCKE, L. UHINK and H. PFUHL. Dec. 11, 1968, No. 58848/68. Heading G1W. [Also in Division A4] A predetermined weight of material is weighed out by feeding a leading end of a continuous fleece 13 of the material on to a weighing machine 12 and severing an end portion from the rest of the fleece when a specified weight has been deposited on the weighing machine, the severing being performed by ripping or tearing the fleece 13. As shown, the fleece 13 is fed to a weighing platform 14 by a conveyor 10 and when a predetermined weight of the fleece 13 is on the weighing platform 14 an electric contact 25 is closed so as to energize a solenoid 37 which tilts a beam 36. The beam 36 tilts to free a cam disc 35 attached to a shaft 31 which is then rotatably driven by means of a friction drive (29, 30) Fig.3, (not shown), so as to rotate a cam 38. The cam 38 is arranged, during its rotation, to lower a severing device 11 for tearing the portion of the fleece 13 on the weighing platform 14 from the rest of the fleece. The severing device 11 which comprises a pair of combs 23, 24 is supported by carrying arms 26, 27 from a shaft 28 which is so constructed and drivably connected by gear wheels 32, 33, 34 to the shaft 31 that when the severing device 11 has been lowered on to the fleece it causes the arms 26, 27 to move relatively to each other whereby the comb 23 is separated from the comb 24 thereby to severe the fleece by tearing, the severing device 11 then being restored to the position shown. The conveyor 10 may comprise a flat surface 15 bounded by side walls 16, 17 in alignment with side walls 43, 44 bounding the platform 14, the flat surface 15 being supported by springs 18, 19 from a support 20 and vibrated in the feed direction of the fleece by an electromagnetic device 21. Alternatively, the conveyor 10 may comprises a pair of endless belts (50, 51) Fig. 6, (not shown) which are arranged one above the other to feed the fleece therebetween to the weighing platform. The weighing platform may be trough shaped and arranged to discharge weighed material through its base or by a separate clearing tool which sweeps the trough and the severing device may be operated by solenoids and arranged additionally to move transversely of the direction of feed of the fleece.
Patent GB-1417848-A (GB)
Title: Control apparatus
IPC: B41J7/00
Filed: 1972-12-20
Abstract: 1417848 Electric selective signalling H KAFAFIAN 20 Dec 1972 [27 March 1972] 58853/72 Heading G4H In communication apparatus for the handicapped a character to be typed or displayed is selected by energizing corresponding row and column conductors of a matrix by means of one of three switching circuits chosen to suit the capabilities of the user. The output from the matrix may be fed to a code converter, and is used to operate a typewriter or a record or display device. For the least handicapped, the 14-key circuit of Fig. 2 is used (this is disclosed in U.S.A. Specification 3,507,376), wherein a row and a column key are depressed simultaneously to energize a solenoid S. For the more handicapped, the 7-switch circuit of Specification 1,417,849 is used: here two switches are closed in turn to generate row and column signals. For the most handicapped, the 1-switch circuit of Specification 1,417,850 is used, closing and opening of the switch controlling movement of stepping switches across row and column contacts.
Patent GB-1438129-A (GB)
IPC: A01N53/08
Filed: 1973-12-21
Abstract: 1438129 Cyclopropane carboxylates SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 20 Dec 1974 [21 Dec 1973] 59393/73 Heading C2C The invention comprises compounds of the formula where R is alkyl, R 1  is hydrogen or halogen, R 2  is alkynyl, Hal is halogen and Q is phenyl optionally substituted by halogen, alkyl, aralkyl or aryloxy. The compounds are prepared by reacting compounds of the formulµ and Y-CHR 2 -Q where one of X and Y is halogen and the other is hydroxy.
Patent GB-1410018-A (GB)
Title: Foaming agent mixture of sulpho-succinate sulpho-succinamate  and amine oxide
IPC: C08J9/30
Filed: 1971-12-22
Abstract: 1410018 A three-component foaming agent for latex foams ALBRIGHT & WILSON Ltd 21 Dec 1972 [22 Dec 1971] 59550/71 Heading C3C [Also in Division C5] A foaming agent suitable for the production of latex foams comprises as active matter: (1) from 5 to 95% by weight of a sulphosuccinamate of the general formula where R is an alkyl group of from 8 to 20 carbon atoms, m is 2, 3 or 4, n is 0 or is an integer from 1 to 6, Me is an alkali metal or alkaline earth metal or ammonium cation or an amine and one of X and Y is hydrogen and the other -SO 3 Me; (2) from 2 to 90% by weight of a sulphosuccinate of the formula or when m, n, Me, R, X and Y are all selected from the same groups as for the sulphosuccinamate but need not represent the same species as for the sulphosuccinamate; and (3) from 2 to 75% by weight of an amine oxide of the formula where R<SP>1</SP> is an alkyl group of from 8 to 20 carbon atoms, R<SP>11</SP> and R<SP>111</SP>, which may be the same or different, each represent alkyl groups of from 1 to 4 carbon atoms, m<SP>1</SP> is an integer from 2 to 4 and n<SP>1</SP> is an integer of from 1 to 3. A mixture of the foaming agent and a latex, e.g. natural rubber or a latex based on butadiene, acrylonitrile and/or styrene copolymers or a chloroprene polymer, is mechanically foamed, e.g. by mixing. The mixture may also contain zinc dibutyl dithiocarbamate and whitening, and the foam may be fed into a mould or on to the back of a carpet. The foaming agent used in the example was a mixture of disodium oocoyl (i.e. C 8-20  alkyl groups derived from coconut oil), sulphosuccinamate, disodium lauryl/myristyl triethoxy sulphosuccinate and N-lauryl/myristyl/cetyl/stearyl/triethoxy dimethyl amine oxide.