baber/WOPTO huggingface dataset:
Patent GB-1084324-A (GB)
IPC: C08G69/02
Abstract: The invention comprises compositions containing a polyamide having recurring amide links separated by at least 2 carbon atoms and a salt of a phosphonic acid and an organic diamine.  These may be prepared (1) by polymerizing either (a) a monoaminomonocarboxylic acid or a lactam thereof or (b) equimolar amounts of a diamine and a dicarboxylic acid in the presence of a salt of an organic diamine and a phosphonic acid of formula <FORM:1084324/C3/1> where n = 1-3 and R1 is an organic radical of valency n. Alternatively (2) the salt may be added to a polyamide which is then heated at least above its m.p. to increase its molecular weight.  In method (1) the diamine and dicarboxylic acid may be replaced by their salt.  The diamine may be a C2- 12 polymethylene diamine and may be the same as the organic diamine in the phosphonate salt.  The phosphonate salt may be formed in situ from 1 mol. of diamine and 1 or 2 of phosphonate or may be added at any time during the polymerization.  Phosphonic acids specified include ones in which R1 is aliphatic, cycloaliphatic, aromatic, aromatic-saturated aliphatic or aromatic-unsaturated aliphatic and optionally contains atoms other than carbon and hydrogen, e.g. Cl and N.  The polymerization may be a batch or continuous process at 200-400 DEG  C.  Delustrants, fillers, photo- and thermo-stabilizers and molecular weight regulators may be present.  In examples, polyamide are prepared from hexamethylene diammonium adipate, caprolactam, capryllactam and dodecanolactam, in the presence of salts of phenyl phosphonic acid, cyclohexyl phosphonic acid, b-phenyl-vinyl phosphonic acid, b-phenyl ethyl phosphonic acid, p-chlorophenyl phosphonic acid, p-tolyl phosphonic acid, butane - 1,4 - diphosphonic acid, diphenyl - 4,41 - diphosphonic acid, n - pentane-1,3,5-triphosphonic acid, methyl phosphonic acid, piperidine - 1 - phosphonic acid, n-butyl phosphonic acid and b-(ethylamino) ethyl phosphonic acid, with hexamethylene diamine, heptamethylene diamine, decamethylene diamine and triethylene diamine, glacial acetic acid, N,N1 - bis - (3 - aminopropyl) piperazine, adipic acid, water, 2-(ethylamino) piperazine, cupric acetate and HI.  In method (2) increase in molecular weight may be effected in the absence of air, e.g. under N2 or under vacuum. In Examples 9 and 18 polyhexamethylene adipamide is heated to increase its molecular weight in the presence of hexamethylene diammonium di-(cyclohexyl phosphonate).  The products of (1) and (2) may be shaped and/or dyed.
Patent GB-1095335-A (GB)
IPC: F28F21/04
Abstract: 1,095,335. Plate-type heat exchangers. MINNESOTA MINING & MANUFACTURING CO. June 29, 1965, No. 27544/65. Heading F4S. A plate heat-exchanger comprises flat sheets 12, 13, 14 interposed between and in contiguous relation with corrugated plates 10 such that the acute angled corners of the flat sheets are substantially coterminous with the corners of the corrugated plates. The corrugations of adjacent plates 10 are in phase and adjacent sheets are inversely positioned with respect to each other. End plates 16, front and rear plates 18 and surfacing plates 20 further define the passageways (30), (32) (Fig. 4, not shown), and 40, 42, 44, 46 for the flow of the fluids in the directions respectively indicated by the arrows I, II. In an alternative embodiment (Fig. 5, not shown), the flat sheets are rhomboidal in shape. The heat exchanger is made from sinterable ceramic materials.
Patent GB-1212218-A (GB)
Title: A supporting roller arrangement for racks particularly storage racks
Inventor: LODIGE ALOIS
IPC: E04B1/36
Filed: 1968-01-05
Abstract: 1,212,218. Roller conveyers. A. LODIGE. 5 Jan., 1968 [7 Jan., 1967], No. 869/68. Heading B8A. In Fig. 1, a resilient mounting for a conveyer roller 12 comprises rubber members 5, 6 separated by a perforated sheet 7 and secured between plates 4, 9 of which the latter is ribbed at 8. Studs 2 in a foundation 1 pass through the mounting for which nuts 3, 14 provide height adjustment. An axle 11 for the roller 12 is mounted in plates 10 and is secured to a bar 15. In Fig. 3, a mounting for a roller 12 includes a dished spring 17 and a resilient foundation stud 2. The rollers are used to support substructures, e.g. framework members 13, of movable racks.
Patent GB-1225885-A (GB)
IPC: C06C7/00
Filed: 1969-10-31
Abstract: 1,225,885. Explosive compositions. DYNAMIT NOBEL A.G. 31 Oct., 1969 [2 Nov., 1968], No. 53609/69. Heading C1D. [Also in Division F3] An ignition and/or initiating composition comprises 80-30% by weight of an inorganic oxidant capable of readily giving off oxygen when heated and 20-70% by weight of a cerium-magnesium alloy in which the ratio of cerium to magnesium is from 4.0:6.0 to 8.5 : 1.5. The inorganic oxidant may be CuO, PbO 2 , MnO 2 , ammonium dichromate, or potassium permanganate. The composition may be pressed on to nitropenta or nitromannite and will cause detonation within 20-160 milliseconds. -
Patent GB-1225954-A (GB)
IPC: D04B9/46
Filed: 1969-01-20
Abstract: 1,225,954. Knitting. F. LONATI. 20 Jan., 1969 [20 Jan., 1968], No. 3126/69. Headings D1C and D1K. At the beginning of the formation of the heel and toe of a stocking knit on a multi feed, e.g. two feed circular machine the supplementary feed is moved to inactive position, but the thread is not cut. Slack in the thread is taken up during reciprocation.
Patent GB-1229546-A (GB)
IPC: F16D65/54
Filed: 1969-09-16
Abstract: 1,229,546. Disc brakes. INTERNATIONAL HARVESTER CO. 16 Sept., 1969 [14 Oct., 1968], No. 45591/69. Heading F2E. A unit 22 arranged to be fitted into a stationary housing 12 of a friction-engageable device such as a brake of a clutch and of the kind in which a pressure plate 16 axially movable in the housing into intermittent engagement with a rotatable friction member requires, unless acted upon to engage the friction member to be held at a predetermined clearance therefrom, wherein the unit comprises an adjuster tube 52 adapted to be slidably disposed in a retaining bore 62 in the housing, an adjuster plunger 54 slidably disposed in the tube and having at its one end a spring-retaining head and at its other end means interconnecting the other end with the tube in a manner to permit only limited relative axial movement between the tube and plunger; and a compression spring 56 disposed between the interconnecting means and the spring-retaining head. The arrangement is such that when the unit is operationally fitted into the retaining bore the plunger head urged by the force of the compression spring will hold the pressure plate, unless acted upon to engage the friction member, at the predetermined clearance and that wear of the friction member will automatically be compensated by an irreversible displacement of the tube in the retaining bore caused by the pressure plate when the distance of its axial movement into engagement with the friction member exceeds the predetermined clearance. As shown, the brake comprises a stationary housing 12, a rotatable friction member 14, a primary, axiallymovable, non-rotatable annular pressure plate 16 moved by an hydraulic piston 24 having an insulating member 36, and a secondary pressure plate 18, the member 14 being provided with friction linings 50 including annular friction discs 46, 48 and mounted on a rotatable shaft. The housing has one or a plurality of bores 62 receiving adjusting and wear compensating units 22 each having a spring retaining pin 58 secured in the tube and passing through an enlarged or elongated hole in the plunger to permit relative movement between the plunger and tube, which movement is taken up upon movement of the pressure plate 16, further movement of the plunger carrying with it the tube against the frictional drag of friction rings 72; upon release of the pressure actuating the piston 24, only the plunger moves back to provide a predetermined running clearance between the pressure plate 16 and friction members 14.
Patent GB-1230912-A (GB)
IPC: G01B11/06
Filed: 1969-04-12
Abstract: 1,230,912. Level monitoring arrangement. POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB. April 12, 1969, No. 18859/69. Heading G1A. An arrangement for indicating when a stack of sheets of material has reached a predetermined height comprises a light source 4 and a photodector 5 responsive to the light from the source after reflection from either the top surface (6) or the side face 2 of the stack means 3 for cyclically varying the position of either the light source or the detector relative to the reflecting surface, and further means responsive to the intensity of reflected light exceeding a predetermined value to generate an electrical signal which indicates that the stack has reached the predetermined height. The detector output may also be arranged to actuate a device for moving the stack of sheets, e. g. of newspapers, once the predetermined height has been reached.
Patent GB-1233289-A (GB)
IPC: F01D5/18
Filed: 1969-09-04
Abstract: 1,233,289. Making turbine blades. DAIMLER-BENZ-A.G. 4 Sept., 1969 [4 Sept., 1968], No. 43834/69. Heading B3A. [Also in Division F1] A hollow turbine blade is made from two halves 21, 22 electron beam welded or brazed together along a seam 23. The blade halves may be produced by precision casting and subsequent machining before they are joined together. The blade profile and root 25 are then finish shaped by erosion, etching or electrolytic treatment.
Patent GB-1233865-A (GB)
IPC: G02B27/02
Filed: 1970-02-18
Abstract: 1,233,865. Audio-visual apparatus. REMCO INDUSTRIES Inc. 18 Feb., 1970 [19 Feb., 1969], No. 7862/70. Heading G5R. A sound record 22 and a picture-bearing drum 16 are rotated simultaneously by a common drive which is automatically interrupted when the drum 16 completes one revolution. As shown, the circuit of the drive motor 24 includes a pair of resilient contacts 34 which are normally closed but are opened by a lug 46 on the drum 16 at the end of each revolution. The contacts 34 are closed to restart the apparatus, in response to brief depression of a knob 29, by a lever 28 which simultaneously raises the record 22 against a spring 38 to enable a pick-up arm 40 carrying a stylus 43 to be swung back to its starting position by a spring (54, Figs. 6 and 7). In operation the pick-up arm 40 is in contact with a diaphragm 44.
Patent GB-1237972-A (GB)
IPC: C07D303/32
Filed: 1969-03-06
Abstract: 1,237,972. Preparation of 6,7-epoxy citronellal. F. HOFFMANNLA ROCHE & CO. A.G. 6 March, 1969 [11 March, 1968], No. 11863/69. Heading C2C. 6,7-Epoxy-citronellal is prepared by hydrogenating 3,7 - dimethyl - 6,7 - epoxy - 2 - octene- 1-al, optionally in the presence of a catalyst such as palladium or palladium on charcoal.
Patent GB-1250306-A (GB)
IPC: C07D313/04
Filed: 1970-03-26
Abstract: 1,250,306. 2,3,4,5-Tetrahydrooxepin. MONSANTO CO. 26 March, 1970 [1 April, 1969], No. 14770/70. Heading C2C. Tetrahydropyran-2-methanol is converted to 2,3,4,5-tetrahydrooxepin by contacting it in the gaseous state at a temperature from 150 C. up to the temperature at which excessive thermal decomposition takes place with at least one catalyst selected from silica-alumina, silicaalumina containing catalyst, silica, silica-containing catalysts, copper chromate catalysts and these catalysts when pretreated with a basic material.
Patent GB-1251792-A (GB)
IPC: H02K3/18
Filed: 1967-10-06
Abstract: 1,251,792. Coil formers. JOSEPH LUCAS (INDUSTRIES) Ltd. 2 Oct., 1968 [6 Oct., 1967; 14 June, 1968], Nos. 45752/67 and 28325/68. Heading B8M. [Also in Divisions H1 and H2] A coil former 11, Fig. 3, made of synthetic resin material includes outwardly extending flanges 13, 13a, at its opposite axial ends and a slit extending from one of its axial ends to the other such that, in use, the former is compressed by the tension in the conductor used to wind the coil. The former further includes a hollow spigot 18 which carries one of the ends of the coil. In a modification, Fig. 5, the former has a V-shaped opening 29 in one flange, there being formed at the apex of the opening a notch 31 serving to locate the conductor during the winding of the first few turns of the coil. The former is used in a rotor assembly of a dynamo-electric machine (see Division H2).
Patent GB-1252423-A (GB)
IPC: G01N21/31
Filed: 1968-07-05
Abstract: 1,252,423. Modulating light. TECHNICON INSTRUMENTS CORP. 1 July, 1969 [5 July, 1968], No. 32302/68. Heading H4F. [Also in Divisions G1] Apparatus for effecting atomic absorption or fluorescence analysis of a gaseous medium in a flame 4 comprises an electrodeless discharge lamp 2, i.e. one excited by microwave radiation from a magnetron 11 and resonant cavity 1, means for modulating the microwave field intensity to correspondingly modulate the light output from the lamp 2 and means for selectively sensing light leaving the medium which is similarly modulated. As described, the microwave field is modulated by superimposing a 50 Hz signal from 12 on the D.C. potential of the magnetron anode. A choke and capacitor in the anode circuit form an isolating filter to prevent the modulating signal being shunted by the smoothing circuit of the magnetron D.C. supply. The modulated light is passed through the flame 4 and fluorescence at 90 degrees is detected by a photomultiplier 7 after passing through a monochromator 8. The resulting signal is fed to an A.C. chopper-amplifier 9, the electric chopper of the amplifier being controlled from the 50 Hz source 12 via a phase changing bridge network so as to correctly phase the detection of the 50 Hz modulated light component, and is recorded at 10.
Patent GB-1258178-A (GB)
IPC: H01H15/02
Filed: 1969-12-17
Abstract: 1,258,178. Switch cases; switch contacts. W. PREH [trading as PREH ELEKTROFEINMECHANISCHE WERKE JAKOB PREH NACHFOLGER]. 17 Dec., 1969 [18 Dec., 1968], No. 61579/69. Heading H1N. A switch comprising a sliding member 5, carrying elongate moving contacts 6, has a body formed by two side members 2, carrying spring contacts 4, and narrow top and bottom members 3 which are assembled by means of resilient prongs 20 integral with members 2 and engaging in alternate mating recesses in the members 3. The contacts 6 are held in recesses in the slide 5 and may be circular, semi-circular, triangular or rhombic in cross-section (Figs. 13 to 16, not shown); they may extend in the direction of sliding, perpendicular thereto or obliquely (Fig. 12, not shown), and may be U-shaped to interconnect fixed contacts on the two sides (Fig. 11, not shown). The fixed contacts may be formed from metal stampings, as shown, or may comprise wires (Figs. 4 and 6, not shown), in each case the central contact area being supported by resilient portions making an acute angle with each other, and the contacts are situated in a plane approximately parallel to the plane containing the moving contacts 6.
Patent GB-1258627-A (GB)
IPC: B65H49/34
Filed: 1969-04-29
Abstract: 1,258,627. Unwinding apparatus. GLANZSTOFF A.G. 29 April, 1969 [10 May, 1968], No. 21681/69. Heading D1J. A ply of parallel, closely adjacent cords 4 wound on a bobbin 1 with a metal band 3 wound between the layers, is delivered to a processing machine, e.g. for coating with rubber to make tyre plies by unwinding the bobbin by taking up the metal band on a second bobbin 2 driven by a variable-speed motor 34 the speed of which is controlled by an arm 5 in accordance with the size of a loop of the ply between the bobbin 1 and tension applying means. The ply passes over a guide 6, through a comb 7, over a magnetic plate 8, and around frictionally braked rollers 11, 12, 13 to the processing machine. The bobbin 1 may be braked to prevent over-running. Bobbins 1 and 2 and their supports are identical, and may be removed from base-plate 29, a new bobbin being wound using the metal band.
Patent GB-1259100-A (GB)
IPC: A23L3/3445
Filed: 1968-07-15
Abstract: 1,259,100. Preserving liquids. GRANTS OF ST. JAMES'S Ltd. 10 Oct., 1969 [15 July, 1968], No. 33689/68. Heading A2D. [Also in Divisions B8 and C3] The storage capability of oxygen-sensitive products such as beverages and fruit juices, is improved by incorporating in the storage container a solid material having incorporated therein and which is permeable there to an antioxidant which is sulphur dioxide or a sulphur dioxide liberating material, the rate of diffusion of sulphur dioxide or the sulphur dioxide liberating material being sufficient to reduce chemically the oxygen present in or diffusing into the container. The solid material containing the antioxidant may be in sheet or film form, or may form the container. Alternatively the antioxidant may be encapsulated or incorporated in bags or sachets which are then added to the storage container. The antioxidant may be incorporated in a porous material i.e. cork or expanded polystyrene, and for instance used as the cork stopper for the container. Suitable sulphur dioxide liberating substances are the ammonium, alkali or alkaline earth metal sulphites, bisulphites or metabisulphites.
Patent GB-1266013-A (GB)
IPC: B22F3/02
Filed: 1969-02-24
Abstract: 1,266,013. Moulding powder. TRW Inc. 24 Feb., 1969 [23 Feb., 1968], No. 9815/69. Heading B5A. [Also in Division H1] Apparatus for fabricating tantalum anodes for capacitors includes die members 14, 16, punches 24, 26, an elastomeric enclosure comprising slabs 68, 76 of relatively soft elastomer with cavities 70 for the powder and holes 80 for tantalum wire. Rims 74, 78 of relatively hard elastomer are provided and form seals with the die wall. On compressing the assembly the wire ends are received in the powdered compacts which are then sintered. The powder is thereby isostatically compressed to provide compacts having substantially uniform porosity.
Patent GB-1266531-A (GB)
IPC: A63B49/12
Filed: 1969-01-02
Abstract: 1,266,531. Steel tennis rackets. DUNLOP HOLDINGS Ltd. 31 Dec., 1969 [2 Jan., 1969], No. 367/69. Heading A6D. A tennis racket is made of hollow steel tube whose cross section is such that its maximum external dimension M, divided by the maximum wall thickness, WT, is at least 26 and the minimum external dimension, M', divided by the maximum wall thickness, WT, is at least 13. Preferably, also, the point H of the frame will not be displaced by more than 3/4" when the last 6" of the handle is clamped and a load of 50 1b. is applied to point L; the angular distortion of the head about the longitudinal axis is not more than 4‹ under a torque of 150 inch 1b. applied along the line YZ; the vertical displacement of point E of the frame is not more than 1 3/4" when the head of the racket to line FG is clamped and a load of 20 1b. is applied to point E; and the load/ deflection ratio at a deflection 1/10" is greater than 450 when the frame is gripped in a tension testing machine and I and J. The crosssectional shape of the tube may be elliptical, circular or rectangular and may be grooved in the middle portion to facilitate stringing. The racket frame is made from a length of tube filled with bitumen supporting material and bent into shape, the stringing groove lying on the outer edge of the logs. A series of string- ing apertures are drilled in the loop, the bitumen material is melted and drained, and a bridge piece (C) and braces (D) are brazed onto the frame loop and between the parallel ends of the frame respectively. The racket is completed by a leather-bound wooden handle and stringing.
Patent GB-1266717-A (GB)
IPC: H03K19/10
Filed: 1969-10-14
Abstract: 1,266,717. Logic Circuits. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 14 Oct., 1969 [15 Oct., 1968 (2)], No. 50538/69. Heading H3T. [Also in Division G4] A logic circuit comprises a parallel connection of a tunnel diode 21 and a diode 22 connected across a junction between the base and output terminal of a transistor 11 with the polarity of said diodes opposite to that of the junction and a plurality of input terminals x, y connected to the base. The circuit, an m input c l  element, produces an output of " 1 " when less than I inputs are " 1 ", remains in the previous state when I inputs are " 1 " and produces an output of " 0 " when more than l inputs out of a total of m inputs are " 1 ". In Fig. 5 (not shown) a number of 2-input C 1  elements are connected in cascade to form a one to five frequency divider. The manner of operation of each of the elements is indicated by the waveforms of Fig. 6 (not shown). In Fig. 7 (not shown), a monostable multivibrator is formed by connecting a delay element (55) between the output and one input of a 2 input C 1  circuit, wherein when a pulse signal of " 1 " is applied for a short duration at a second input the output changes from " 1 " to " 0 ", reverting back to " 1 " at the end of a period determined by the delay element. In Fig. 10 (not shown) an inhibitor circuit is formed by connecting a delay element (82) between the output and one input of a 3-input C 1  element so that when a control signal of " 1 " is applied at a second input, a signal of " 1 " appearing at a third input is always blocked, producing an output of " 0 ". An astable multivibrator may be formed by connecting elements 62, 63 of different delay # 1 , # 2  between the output and inputs of a 2 input C 1  element (see Fig. 8). When the input x, y is " 0 ", " 0 ", the output becomes " 1 " and consequently one of the inputs becomes " 1 " after a delay of # 1 , the other input becoming " 1 " after a longer delay # 2  when the output changes to " 0 ". The cycle is completed after a further period of # 2  when both the inputs become " 0 ", " 0 ". In a bi-stable multivibrator (see Fig. 9) formed by interconnecting two 3 input C 1  circuits, assuming the outputs 76, 77 are " 1 ", " 0 " respectively at the start, the inputs to each of the circuits 71, 72 become (1, 0, 0) in the absence of an input signal. When an input signal " 1 " appears at 75, each of the inputs become (1, 1, 0), the output 76 changes from " 1 " to " 0 ", the output 77 remaining at " 0 " causing the input to 72 to become (0, 1, 0). When the input at 75 disappears, the input to 72 becomes (0, 0, 0) causing the output at 77 to change from " 0 " to " 1 ". After a delay due to elements 73, 74, each of the inputs become (0, 0, 1). When a further signal " 1 " appears at 75, reinversion is caused in the states of 71, 72 to restore them to the initial states.
Patent GB-1287885-A (GB)
IPC: D01D10/04
Filed: 1968-10-17
Abstract: 1287885 Non-woven paper-like fabric COURTAULDS Ltd 16 Oct 1969 [17 Oct 1968] 49227/68 Headings D1R and D2B A non-woven paper-like fabric is produced by transversely spreading a wet continuous filament tow of self-bonding regenerated cellulose filaments by passing it through a cocurrently flowing fluid stream which is caused to diverge. A coherent band is formed in which parts of at least some filaments lie transversely of the band and cross over parts of other filaments. The band is then dried to bond the filaments at their cross-over points. The cellulose filaments may be hollow and collapsed to a flat condition or may be incompletely regenerated and swollen in the wet state. A plurality of the spread bands may be plied together and the non-woven fabric reinforced by print-bonding.
Patent GB-1289106-A (GB)
IPC: D04B35/18
Filed: 1968-12-05
Abstract: 1289106 Knitting - machines BENTLEY ENG CO Ltd 28 Nov 1969 [5 Dec 1968] 57711/68 Addition to 1126652 Heading D1C The combined latch opener and latch detector of Parent Specification is so constructed that when performing the latter function it responds to misplaced latches only. The detector is energised only when this function is performed. In one embodiment a contact 1a insulated from the body of the opener is embedded below the point of the opener. Alternatively the tip of the detector may be insulated from the main body, or comprise or be coated with insulating material. The part of the body adjacent the tip serves to make contact with a misplaced latch; only the tip  is in a position to contact a flexed needle stem.