baber/WOPTO huggingface dataset:
Patent GB-1084315-A (GB)
IPC: C08B11/20
Abstract: 1,084,315. Purifying crude hydroxyalkyl cellulose ethers. COURTAULDS Ltd. June 19, 1964 [June 21, 1963], No. 24728/63. Heading C3A. Crude sodium hydroxide-containing hydroxyalkyl cellulose ethers are purified by mixing the crude ether with aqueous acetone containing at least 70% by volume of acetone and also benzoic acid in a proportion which is equal to or greater than the proportion required to neutralize all the sodium hydroxide present in the ether, allowing the cellulose ether to settle, separating the ether from the supernatant liquor and drying it, adding an acid such as sulphuric acid, phosphoric acid or carbon dioxide (carbonic acid) to the liquor separated from the cellulose ether in such a proportion as to precipitate all the sodium as the corresponding sodium salt of the acid while leaving substantially no free acid in the liquor and removing the sodium salt from the liquor to produce an aqueous acetone solution of benzoic acid suitable for washing a further batch of cellulose ether. The acid added to the liquor separated from the cellulose ether is characterized in that it is soluble in the liquor and its sodium salt insoluble. In a modification of the process the benzoic acid may be added to the ether before the latter is mixed with the aqueous acetone and the liquor which has been separated from the ether and then freed from sodium salt is mixed with the same batch of cellulose ether and the latter separated from the liquor and dried. Instead of separating the ether from the liquor and drying it, the mixture may be allowed to settle, the supernatant liquor removed from the cellulose ether slurry, freed from sodium as before and mixed with the same batch of cellulose ether and the latter. Separated and dried. The cellulose ether may be hydroxyethyl cellulose. The cellulose ether may be washed with acetone before it is dried.
Patent GB-1225317-A (GB)
IPC: A01G9/20
Filed: 1968-05-31
Abstract: 1,225,317. Garden frame. G. W. T. CHRISTIE. 31 May, 1968, No. 26165/68. Heading AlE. In a cold frame or garden frame the sides 3 are slidably secured to the gable ends 2 by curved flanges 9 and 10, Fig. 5, and the glass panes 12, 13 of the roofing are slidable in overlapping relationship along the frame length between the grooves formed in the upper edge of the sides 3 and the grooves 15 and 18 in a ridge member 4, 11, 14, 17.
Patent GB-1225579-A (GB)
IPC: H01J37/141
Filed: 1969-07-17
Abstract: 1,225,579. Electron - beam apparatus. APPLIED RESEARCH LABORATORIES Inc. 17 July, 1969 [17 July, 1968], No. 36119/69. Heading HID. In order to remove contaminants from an electron microprobe of the kind having a lens positioned closely adjacent to the specimen, the lens structure is cooled to a temperature below about - 20 C. In the microprobe shown, an election beam impinges on a small area of the specimen 14 to cause emission of X-rays which are subjected to analysis. Contaminants are caused to condense on the surface 10 of a lens 12 which is cooled by means of a refrigerant circulated in a coil 24 surrounding the winding 16. A conventional refrigerant is used for temperatures down to- 40 C. and below this, liquid nitrogen is used. The coil 24 may be included in the cooling circuit of a diffusion pump for the apparatus and the temperature of the lens may be regulated by means of an adjustable valve in a by-pass circuit. The specimen 14 may be heated by means of a coil 27. Temperature sensors 26, 28 may be used in automatic regulating circuits for both cooling and heating.
Patent GB-1225955-A (GB)
IPC: C08G16/04
Filed: 1968-03-18
Abstract: 1,225,955. Thien - 2 - ylmethyl esters of amino and N - acylamino acids. FARBWERKE HOECHST A.G. 18 March, 1968 [17 March, 1967], No. 4090/69. Divided out of 1,216,247. Heading C2C. Novel amino- or N-acylamino-acid thien-2- ylmethyl esters, where acyl is defined as any N-acyl protective group known or used in peptide chemistry, are prepared by reacting 2- chloromethylthiophene with an alkali metal or alkylammonium salt of the N-acylamino acid in a solvent at 18-60‹ C. and if required deacylating the N-acylamino acid ester. Specified amino acids are glycine, alanine and leucine and their N-benzyloxycarbonyl, N-t-butyloxycarbonyl and N - o - nitrophenylsulphenyl derivatives. Deacylation is suitably effected with HCl gas in an inert solvent, yielding the amino acid in the form of the hydrochloride. Examples relate to the preparation of the esters of tbutyloxycarbonyl - L - glycine, t - butyloxy - carbonyl - L - leucine, o - nitrophenyl - sulphenyl- L - alanine and o - nitrophenylsulphenyl - L- leucine and the hydrochlorides of the deacylated amino acid esters.
Patent GB-1228769-A (GB)
IPC: G21C3/04
Filed: 1967-11-23
Abstract: 1,228,769. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 28 Oct., 1968 [23 Nov., 1967], No. 53447/67. Heading G6C. The lateral vibration of a component, e.g. fuel element or control rod, when subjected to coolant flow in a reactor channel whilst being lifted from or lowered into the channel is minimized by providing the component in the region of its lower end with radially projecting spring bristles arranged circumferentially around the component. A fuel element stringer is fitted at the bottom of the lowermost fuel element 2 (Fig. 2) with radially projecting spring bristles 5 carried by an adapter 6. An end flange 8 with a rim 9 on the adapter 6 fits about a step 10 at the lower end of the outer graphite sleeve 4 of the fuel element 2. The bristles 5 are in two sets mounted in circular holders 11 which are held on the adapter 6 between clamping rings 12 by a nut 13 screwed on the lower end of the adapter 6. Spacer rings 14 are fitted between the nut 13 and the lower clamping ring 12. The adapter 6 is carried by a bottom support 15 comprising an outer ring 16 joined to a central tubular boss 17 by radial webs 18. The fuel element 2 has a central tierod 19, which extends below the outer sleeve 4 with an extension 20 screwed on to its lower end. This extension 20 has an externally threaded lower end part 23 which is screwed into the boss 17. During on-load charging and discharging of the fuel element stringer into and from a fuel channel the bottom fuel element 2 is located by contact of the bristles 5 with the wall of the fuel channel or with the wall of the charge pipe leading from the channel. If because of low contact pressure in the larger diameter sections of the charge path, some vibrations do occur, there will be a considerable cushioning effect protecting the outer sleeve of the bottom fuel element from damage. The bristles 5 may be of springy metal such as stainless steel. Stiff metal bristles would tend to scratch the walls of the fuel channel but this could be avoided by forming blobs on the ends of the bristles or by covering the ends of the bristles with a shoe.
Patent GB-1230046-A (GB)
IPC: H04L7/027
Filed: 1969-10-01
Abstract: 1,230,046. Transistor pulse circuits; telegraphy. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Oct., 1969 [2 Oct., 1968], No. 48183/69. Headings H3T and H4P. In an arrangement for recovering the clock frequency from received information pulse signals in its proper phase, a multilevel information pulse signal derived from a detection device 4 is applied to a frequency selective circuit 13 which is tuned to half the clock frequency and whose output is connected to a non-linear circuit 14 acting as a frequency doubler which is connected through a normally open electronic switch 15 to the phase synchronizing circuit 11 of a local clock generator 9, the switch 15 being controlled by a threshold circuit 16 which closes the switch 15 when the derived signal exceeds the threshold. In one embodiment a carrier signal, modulated to one of eight discrete phases dependent on the values of groups of three bits in the transmitted data, Fig. 7, is converted to two quarature signals in demodulator 4. Samplers 29, 30, 33, 35 sample the signals at the clock rate to produce at the inputs of gates 39, 40, 41 parallel signals whose binary values correspond to the instantaneous carrier phase. Gates 39, 40, 41 are controlled by circuits 44, 45, 46 at the clock rate to provide parallel to series conversion of the data. Similar systems in which the carrier is amplitude modulated are also described, Figs. 1, 5 (not shown).
Patent GB-1231587-A (GB)
IPC: B42C3/00
Filed: 1967-07-20
Abstract: 1,231,587. Bookbinding machines. BELL PUNCH CO. Ltd. 22 July, 1968 [20 July, 1967], No. 33520/67. Heading B6A. A bookbinding machine for producing Graduated Pension Books from a number of superposed webs 3, 4, 10, Fig. 1, includes a first pair of pin feed tractors 1 which feed the webs 3, 4 comprising pre-printed lower covers and instruction leaflets, respectively towards a feeding table 21 and a second pair of pin feed tractors 11 which feed the web 10 comprising pre-printed vouchers towards the feeding table 21, the webs 3, 4, 10 being slit longitudinally by respective slitters 5, 6 and 12, 13 and cut transversely by respective guillotines 7, 14 to deposit on the table 21 two contiguous sheets each forming part of a pair of books which are separated into single books in the last processing step. In operation the pin feed tractors 1, which are driven intermittently by a Geneva drive (Fig. 2), cause the slit webs 3, 4 to be advanced over the table 21 whereupon the drive is stopped and the guillotine 7 actuated. Subsequently the pin feed tractors 11 for the web 10 are driven intermittently by a like Geneva drive, the number of feeding steps, which are controlled by a counter (not shown), depending on the number of superposed vouchers, whereby at each step the guillotine 14 is actuated to cut the web 10 transversely in the manner of operation of the guillotine 7. When a predetermined number of vouchers has been deposited on the feed table 21 the stacked portions of the books are aligned by a registering bar 31 and the stacked portions of the books are advanced in opposite directions by pins 32 on a chain conveyer towards retractable stops 33 at locating stations 28, Fig. 3, at which upper book covers 22 are applied by a respective roller 25 driven through one revolution under the control of a solenoid 26. The stops 33 are then retracted and the assembled books are fed to stapling devices 29. The pair of books is then slit and delivered into a discharge hopper 30, Fig. 1.
Patent GB-1231601-A (GB)
IPC: B01J47/018
Filed: 1968-04-19
Abstract: 1,231,601. Ion exchange. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION and UNION CARBIDE AUSTRALIA Ltd. 19 April, 1968 [20 April, 1967], No. 18551/68. Heading B1J. [Also in Divisions Cl and C3] An ion-exchange process for the treatment of liquid comprises forming an agitated suspension in the liquid to be treated of an ionexchange adsorbent having ferromagnetic properties, the adsorbent being in a magnetised state; causing or allowing particles of the adsorbent to flocculate magnetically by virtue of their magnetised state; and removing the thus flocculated particles from the liquid. In a particular embodiment, the liquid to be treated is fed upwardly through a mixing zone and the ion-exchange adsorbent is fed downwardly through the same mixing, zone to effect the treatment of the liquid. A plurality of mixing and settling zones can be used if desired. The adsorbent is suitably a bead condensation or addition polymer containing polar groups (e.g. amino or sulphonic acid groups) and having incorporated therein a ferromagnetic material such as barium ferrite, gamma iron oxide or magnetite. Particular forms of apparatus for carrying out the ion-exchange process are described.
Patent GB-1232499-A (GB)
IPC: G01P15/18
Filed: 1968-12-20
Abstract: 1,232,499. Accelerometer, construction of. TOYOTA CENTRAL RESEARCH & DEVELOPMENT LABORATORIES Inc. Dec.20, 1968 [Dec.27, 1967 and May 28, 1968], No.60620/68. Headings G1K and G1N. An accelerometer comprises a sealed vessel, 1, filled with a silicone oil, the vessel containing a cantilever beam, 5, attached to which are semiconductor strain gauges S 1 , S 2 , which produce electrical signals due to stressing of the beam by acceleration of an object, to which the vessel is attached, in a direction orthogonal to the beam axis. Weights 6a, 6b are supported at an end of the beam which is clamped at its other end between plates 7a, 7b, and bolted to the vessel. The oil provides a damping medium while a pair of side walls 8, 9, is arranged about the beam assembly so as to define narrow passages between the walls and the side surfaces of the weights. Construction of the walls is such as to cause these passages to be further constructed by thermal expansion so as to offset the change in damping factor due to decreasing oil viscosity with temperature. To this end the walls are laminates of materials having dissimilar coefficients of thermal expansion. A minimum spacing between the walls is defined by a stop pin 13 while further stops (14a) (151, 152) Figs.7, 8 (not shown) cause the construction to be varied so as to compensate for the non-linearity of the viscosity vs temperature graph Fig.1 (not shown). Figs.9 to 11 (not shown) show units bearing three mutually perpendicular accelerometers to measure accelerations in any direction.
Patent GB-1232760-A (GB)
IPC: E04B2/74
Filed: 1969-10-20
Abstract: 1,232,760. Screens; shelf brackets. PAPSCO BUILDING PRODUCTS Inc. 20 Oct., 1969, No. 51415/69. Headings A4B and A4U. A folding screen or room divider comprises sections 11, 12, 13 connected by hinges 14, 15 and lockable in open position by a key 21 inserted in passages in the tops of the sections. Each section comprises a laminated panel 32 the edges of which are received and secured by screws 47, 49 in channel-section posts 28, 29, and in H-shaped, upper and lower transverse members 30, 31, the posts and members being interlocked by engagement of lips 41 in vertical slots 52. Castors 17, 18 are mounted by a metal block (57) fitted in the posts, the central castor being spaced from the floor surface when the screen is in open position. A cover plate may be provided in the member 31 to form a conduit for electric cables, and a work top, shelf 45 or lighting fixture is mounted by brackets 26 which interlock with a channel 37 in the posts 28, 29 and comprise a onepiece T-shape member having a horizontal top plate 60, a vertical brace 61, and a hub 62 which is bored to receive a bolt 65 having a head 66 and threaded to engage a nut 68 captive in the channel 37. In modifications, the key 23 fits over the posts 29 and over the upper transverse members, or the sections are hinged in series, the keys being V-shaped.
Patent GB-1233928-A (GB)
IPC: G03B7/099
Filed: 1968-10-30
Abstract: 1,233,928. Exposure control arrangements. NIPPON KOGAKU K. K. Oct.30, 1968 [Oct.31, 1967j, No. 51545/68. Heading G2A. The single lens reflex camera described in Specification 1, 231, 071, has the adjustable stop 22 located in front of the photo-cell 23 moved to an inoperative, maximum aperture position wider than the full aperture position when operable upon disconnection of the coupling 10 between the diaphragm pre-setting ring 4 of an interchangeable lens and the adjusted stop, the adjustable stop being returned to an operative position upon mounting an interchangeable lens. The adjustable stop is biased by a spring 38 to the inoperative position, the spring acting on a cam plate 37 which is coupled by a rod 45 to the adjustable stop and by a gear assembly 39, 40, 41, 32 to an interconnecting ring 9 mounted on the camera body. Ring 9 has a projection 9o which engages a fixed pin 52 to limit movement of the adjustable stop to the inoperative position, and which carries a pin 10 for engaging with a lug 11 mounted on the diaphragm pre-setting ring. Cam plate 37 also carries a rod 51 which moves a filter 47 over the photo-cell 23 when the interchangeable lens is removed from the camera. Alternatively, Fig. 4  (not shown) pin 51 switches a resistance out of the exposure meter bridge circuit.
Patent GB-1234177-A (GB)
IPC: F02M3/00
Filed: 1970-01-10
Abstract: 1,234,177. Spray carburetters. FORD MOTOR CO. Ltd. Jan.10, 1970, No.1317/70. Heading F1B. The idling fuel control needle 9 is movable by a solenoid 21 to a first position abutting an adjustable stop 17 when the engine ignition is switched on and to a second position restricting or stopping the fuel-flow through the idling passage when the ignition is switched off.
Patent GB-1234231-A (GB)
IPC: F16L37/50
Filed: 1968-01-26
Abstract: 1,234,231. Bearings. MARCONI CO. Ltd. 29 Aug., 1968 [26 Jan., 1968], No. 4212/68. Heading F2A. [Also in Division H4] In a steerable aerial installation a bearing arrangement comprises an inner member supported within an outer member which is built up of at least three segments so arranged that one of them can be removed whilst still leaving the inner member supported. As described, a large steerable aerial is mounted on a support member which comprises means for rotation of the said aerial in elevation, and is itself rotatable in azimuth, a main bearing arrangement being provided at the top of a support tower (Fig. 1, not shown). The bearing arrangement comprises a rotatable inner member 14, Fig. 2, which is fixed to the said support member, and a stationary outer member 15. The member 14 carries three sets of bearing pads 18, said sets being arranged about three axes which are at 120 degrees to each other. The member 15 is made up of four 90 degree segments bolted together, and the pads 18 bear on its inner surface 17. By suitably positioning the member 14, a segment of the member 15 may be removed whilst still leaving all of the pads 18 in contact with the remaining segments of the member 15. Each pad 18 is pinned at one end 20 to the inner member 14 and is supported at its other end on an adjustable stop 21. A spherical ball unit 22 makes the pad self aligning. The pads may be pinned in alternative vertically spaced positions to enable wear to be distributed over the inner surface 17 of the outer member 15 (Figs. 3a and 3b, not shown). The inner member 14 comprises three hollow arms 25 which can be heated by means 24 so that the said member expands and reduces the spacing to the outer member 15. A monitor 26 operates the heater means 24 in dependence on a capacitance determined by an air gap 27 between the two said members. Teeth 16 are formed on the outside of the stationary outer member 15, and are engaged by a motordriven gear-wheel carried by the aerial support member, so providing means for rotation in azimuth.
Patent GB-1234668-A (GB)
IPC: C09B29/20
Filed: 1968-08-22
Abstract: 1,234,668. Water insoluble monoazo dyestuffs. FARBWERKE HOECHST A.G. 22 Aug., 1968 [22 Aug., 1967], No. 40292/68. Heading C4P. [Also in Division C3] The invention comprises water-insoluble monoazo dyestuffs free from sulphonic and carboxylic acid groups having the general formula wherein A is an aromatic isocyclic cr heterocyclic radical, R is C 1 -C 6  alkyl, cycloalkyl or aralkyl, X 1  and X 2  are H, halogen, C 1 -C 6  alkyl or C 1 -C 6  alkoxy. A is preferably of the benzene, naphthalene, anthraquinone, carbostyril quinazoline or benzthiazole series, and may be further substituted. They are prepared by diazotizing an amine A-NH 2  and coupling to a 2,3 - hydroxynaphthoylaminobenzimidazolone. The dyestuffs colour laquers, cellulose acetate, natural and synthetic resins, polystyrene, polyolefins, polyacryl compounds, polyvinyl compounds, polyesters, rubber, casein, silicone resins, cellulose, cellulose ethers and esters, polyamides, and polyurethanes in orange, red, violet and brown shades.
Patent GB-1251032-A (GB)
IPC: C02F5/14
Filed: 1968-10-14
Abstract: 1,251,032. Composition containing organophosphorus compounds. HOOKER CHEMICAL CORP. 14 Oct., 1968 [2 Nov., 1967], No. 5365/71. Divided out of 1,251,031. Heading C2P. [Also in Division C1] A composition comprises (A) a tris-(hydroxyalkyi) phosphine, a tetrakis (hydroxyalkyl) phosphonium halide, hydroxide or organic salt, or a tris (hydroxyalkyl) phosphine oxide or sulphide and (B) (1) an aminocarboxylic compound, (2) a condensed inorganic phosphate or (3) a compound of Formula I or Formula II where Y is hydroxy or mercapto, or an alkali metal salt thereof, b is 0 or 1, d is 0 to 3, d<SP>1</SP> is 0 to 2, X<SP>1</SP> and X<SP>3</SP> are oxygen or sulphur, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are each hydroxy or a group of Formula III R<SP>13</SP> is a group of Formula III, f is 0 or 1, X<SP>2</SP> is hydrogen, ammonium or alkali metal, R<SP>4</SP>, R<SP>5</SP>, R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP>, R<SP>9</SP>, R<SP>14</SP> and R<SP>15</SP> are each hydrogen, alkyl, alkoxy, hydroxy, aralkyl, aryl, alkylaryl, hydroxyaryl, alkoxyaryl or a group of Formula III, R<SP>10</SP>, R<SP>11</SP> and R<SP>12</SP> are each hydrogen or alkyl, n is 1 or 2 and g is at least 1; provided that R<SP>1</SP> is a group of Formula III when at least one of R<SP>4</SP> and R<SP>5</SP> is alkyl of at least 2 carbon atoms, provided that R<SP>2</SP> is a group of Formula III when at least one of R<SP>6</SP> and R<SP>7</SP> is alkyl of at least two carbon atoms, provided that R<SP>3</SP> is a group of Formula III when at least one of R<SP>8</SP> and R<SP>9</SP> is alkyl of at least two carbon atoms, and provided at least one of the radicals R<SP>1</SP> to R<SP>9</SP> is a group of Formula III at least when one of the radicals R<SP>4</SP> to R<SP>9</SP> is a hydrogen atom or an alkyl group, provided (1) that at least one of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is a group of Formula III (A) at least when b is one and (B) when at least one of R<SP>4</SP> to R<SP>9</SP> is OH, (2) that X<SP>3</SP> is sulphur when Y is a mercaptan group and (3) that X<SP>3</SP> is oxygen when Y is OH. The compositions of the invention may be used as metal sequestrants (see Division C1).
Patent GB-1251677-A (GB)
IPC: G06F17/15
Filed: 1968-11-27
Abstract: 1,251,677. Correlation techniques. INTERNATIONAL STANDARD ELECTRIC CORP. Nov. 27, 1968, No. 56283/68. Heading G1U. A correlation type pulse signalling system providing an output signal with an impulse autocorrelation function incorporates a signal source generating separately coded signals of pseudorandom noise type, an arrangement for multiplexing a number of such signals having predeterminedly related auto-correlation functions such that when suitably detected an output signal with an impulse auto-correlation function will be derived, and a correlation detector for each signal being coupled to the multiplexing arrangement. A coincidence arrangement coupled to all of the detectors provides a composite output signal which comprises an impulse output at a given time and zero output at all other times within a cycle of generated coded signals. The system, which may be e.g. a radar or communication system, enables transmitted power to be increased while ensuring that an unambiguous correlation signal is still obtained at the output. The code generators 2-2n at the transmitter are synchronized from a clock source 1, which also energizes a sync generator 13. The outputs from all the generators and the sync are multiplexed orthogonally at 3 and transmitted. At the receiver the codes are demultiplexed at 7 and the sync pulses separated at 14 to control the receiver clock 10. Replica codes are generated at 9-9n in sychronism with the clock, and correlated with their respective recovered codes. At least one of the codes provides only a single impulse when correlated with its replica, at a time corresponding to the transmission time, so that the AND gate 12 to which all the correlator outputs are connected will only produce an output impulse at this time. Suitable code combinations for use in the system are indicated in the Specification.