baber/WOPTO huggingface dataset:
Patent GB-1469470-A (GB)
Title: Printing apparatus
IPC: B41J19/20
Filed: 1974-11-11
Abstract: 1469470 Automatic printing control INTERNATIONAL BUSINESS MACHINES CORP 11 Nov 1974 [23 Nov 1973] 48624/74 Heading G3N In the control of linear movement of the print head assembly of printing apparatus, there being a forward drive means for driving the head in the printing direction, and return drive means for returning the assembly against the opposing force of the forward drive means, the position of the assembly is detected, and, in the return motion, the return drive means is deactivated when the assembly attains a position a - b ahead of a left margin position for the printing, the assembly being braked to rest in distance a, from a terminal velocity, by the opposing force, and subsequently accelerated thereby through distance b to reach a minimum allowable printing velocity at the left margin position. The forward drive is provided by spring (130), Fig. 5 (not shown), driving a carriage supporting the assembly, the return drive comprising motor (150), which additionally serves to wind the spring hence the opposing force, see Specification 1409386. Register 78 initially stores a pre-set number c - b, c representing the distance over which the return drive opposed by the spring accelerates the assembly to the terminal velocity. In a test run, which may be periodically repeated during printer operation, the distance a; is detected by a sensor comprising a light emitting diode and photo-cell co-operating with grating (8), Fig. 2 (not shown); taken for the assembly to come to rest from the terminal velocity, is stored in counter 72 and subsequently added to the content of register 78 which thus stores the minimum distance c + a - b between the left margin position and a position at which the return of the assembly can be instigated. In printing runs the quantity c + a - b is compared with the carriage position when carrier return is commanded, and provided the distance from the left margin exceeds c + a - b, as detected in comparator 79, carriage return is enabled, otherwise the assembly being fed to the right until the distance exceeds c + a - b. At a distance a - b from the left margin, as detected by comparator 87, the return drive is disenabled. In printing, jets of ink are charged in dependence of the configuration of a desired character, see Fig. 2 (not shown) and deflected accordingly, in a vertical plane, by plates (60, 61), the character being built up in a number of vertical lines during forward feed of the assembly, the jets being deflected into a trough (53) for areas where no printing is required. The printer, Fig. 1 (not shown) may be associated with a magnetic card unit (2), so that data to be printed may be recorded, for subsequent use.
Patent GB-1211558-A (GB)
Title: Tape cartridge
IPC: G11B23/07
Filed: 1967-12-12
Abstract: 1,211,558. Magnetic tape cassettes. DATA PACKAGING CORP. 12 Dec., 1967 [4 Jan., 1967], No. 48933/69. Divided out of 1,211,557. Heading G5R. The description is identical to that of Specification 1,211,557 but the claims relate to an endless magnetic tape cartridge in which the tape leaving the innermost convolution engages a guide post then a pressure roller located at opposite ends of a front wall, the post having a varying inclination so as to be inclined to the base where the tape first contacts the post and perpendicular to the cartridge base where the tape leaves the post in order to present the tape parallel to the front wall for transducing.
Patent GB-1405654-A (GB)
Title: Static switching system for substantially instantaneous changeover of an electric machine
IPC: H03K17/73
Filed: 1972-10-24
Abstract: 1405654 Control of D.C. motors JEUMONTSCHNEIDER 24 Oct 1972 [26 Oct 1971] 48940/72 Heading H2J A chopper circuit H which supplies a series D.C. motor A, MG, is controlled by a static switching system to drive or brake the motor A, MG, the change over from one condition to the other occurring substantially simultaneously. Chopper H includes thyristor T, diode D and choke L with resistors R and S shunted across T and D respectively to produce a potential at J when thyristor T is not conducting. Two semi-conductor rectifying arms, one comprising diodes C, B and the other thyristors E, F, are connected in opposition across the supply with the armature MG connected from the junction X of the two diodes CB to the junction V of the two thyristors E, F. Resistors N, P are shunted across diode B and thyristor F respectively to produce potentials at points X, V when thyristors E, F are switched off. When thyristor T is switched off by logic circuit M 1 , the potential between points J and K is compared with the potential between V and K. If the potential at J is lower than at V logic circuits M 1 , M 2  trigger thyristors F, T, and power is supplied through F, MG, C, A, L, T, to drive the motor A, MG. If the potential at J is higher than at V then the circuits M 1 , M 2  trigger thyristors E, T, and current flows through A, E, MG, B, T, L to give regenerative braking. In a second embodiment two motors are controlled simultaneously, Fig. 2 (not shown).
Patent GB-1421117-A (GB)
Title: Pressure check valve
IPC: G01L19/06
Filed: 1971-10-21
Abstract: 1421117 Valves APEX CONSTRUCTION Ltd and W C PECK 5 Jan 1973 [21 Oct 1971] 48963/71 Heading F2V [Also in Division G1] A check valve, for Bourdon type pressure gauges, comprises a spring loaded ball closure member 4 co-operating with a seating member 5 which is screw-threaded into the casing 2, the closure being provided with a by-pass. The seating member may have a saw-cut in its peripheral surface or be provided with a hole parallel to its axis in which a rod may optionally be fitted to provide an annular passage. In other embodiments the seating members may fit loosely in the casing to provide the by-pass passageway or the seating surface may be notched.
Patent GB-1159267-A (GB)
Title: Rifamycin Derivatives
Inventor: MAGGI NICOLA
IPC: A61K31/395
Filed: 1966-11-03
Abstract: 1,159,267. 25-Desacetyl rifamycins. GRUPPO LEPETIT S.p.A. 25 Oct., 1967 [3 Nov., 1966], No. 49389/66. Heading C2A. A 25-desacetyl derivative of a rifamycin is obtained by subjecting the selected rifamycin to alkaline hydrolysis in a solvent. Sodium bicarbonate, sodium cyanide, sodium hydroxide or an organic base may be used in a solvent such as methanol or ethanol. The rifamycin may be B of formula S, SV, the 3-formyl derivatives thereof; and derivatives in which the 3-formyl group is bound with substances having a primary amino group forming a -CH : N- grouping; 3-substituted rifamycins which are aminomethyl derivatives; 3-amino, 3-pyrrolidino, 3-morpholino, 3-piperidino, 3-piperazino-rifamycins; amides and hydrazides of rifamycin B; condensation products of rifamycin O and S with o-phenylenediamine, 2,3-diaminopyridine, 4,5 - diamino - 2 - thiouracil, 2 - amino - phenol, 4 - chloro - and 4 - nitro - 2 - amino - phenol, 3 - hydroxyanthranilic acid, 1 - amino - 2 - naphthol, 3,4-diaminotoluene. The 25-desacetyl derivatives of rifamycin S and SV may be converted into each other by using an appropriate reducing agent (e.g. ascorbic acid) or oxidizing agent (e.g. potassium ferricyanide). Hexahydro-derivatives may be obtained by catalytic hydrogenation. Typical compounds are 25 - desacetyl - 3 - diethylaminomethyl rifamycin SV, 25 - desacetyl rifamycin S and 25 desacetyl - 3 - morpholino - rifamycin S. The compounds have increased water-solubility. A therapeutic composition comprises a 25- desacetyl rifamycin and a carrier.
Patent GB-1158716-A (GB)
Title: Improvements relating to Non-Magnetic Gun Barrels
IPC: F41A21/20
Filed: 1966-11-03
Abstract: 1,158,716. Alloy steels. BOFORS A. B. Nov. 3, 1966 [Nov. 3, 1965], No. 49400/66. Heading C7A. A gun barrel is made of a precipitationhardeneable, non-magnetic steel having the following percentage composition: - C 0À5 - 0À8 Si 0À05 - 0À8 Mn 9 - 18 Cr 2 - 6 Ni 7 - 11 V 0À6 - 1 Fe the balance The steel is solution treated at 1150‹ C. for 1 hour, water quenched and aged at 650‹ C. for 8-10 hours.
Patent GB-1449556-A (GB)
Title: Paving surfaces
IPC: E01C7/35
Filed: 1974-11-15
Abstract: 1449556 Paving surfaces SPECIALIST SURFACING Ltd 15 Nov 1974 49443/74 Heading B2E [Also in Division E1] A paving surface formed on a substrate comprises a mat of stone chippings coated with bituminous binder, there being voids between the chippings which are filled to the full depth of the mat with a cement composition containing a synthetic resin. A suitable thickness for the paving layer is ¥" to 3". preferably 1¢". The binder may constitute 4 to 5% by weight of the chippings. The binder may be hot rolled asphalt or bitumen macadam. The resin may be an acrylic polymer or polyvinyl acetate. The resin cement composition may include a filler; e.g. silica and/or slate dust together with fine sharp sand. The composition may also include an abrasive material such as carborundum powder. A method of forming a paving surface on a substrate comprises laying a mat of stone chippings coated with a bituminous binder on the substrate so as to have voids between the chippings and filling the voids with a resin cement composition.
Patent GB-1127046-A (GB)
Title: Improvements in or relating to sintered hard metal products
IPC: C22C49/00
Filed: 1965-11-22
Abstract: 1,127,046. Sintered hard metals. GEBR. BOHLER & CO. A.G. Nov. 22, 1965 [Nov. 23, 1964], No. 49479/65. Headings C7A and C7D. A sintered hard metal consisting of a bonding metal such as Co and the carbides, nitrides or silicides of the metals of Groups 4a, 5a or 6a of the Periodic system, at least 0À1% by weight of the carbides nitrides or silicides being in the form of filamentary monocrystals and the major portion being in normal particulate form. The preferred range of filamentary material is 0À5-1À5%. The following compositions are specified. 79.5% WC, 5.5% TaC, 5.5% TiC, 9.5% Co, with 1% of the WC as filamentary monocrystals; 74% WC, 5% TaC, 11% TiC, 10% Co, with 2.4% of the WC, 0.8% of the TaC and 1À9% of the TiC as filamentary monocrystals.
Patent GB-1524237-A (GB)
Title: Cyclic imides processes for their preparation and medicaments containing theseimides
IPC: C07C271/22
Filed: 1975-12-03
Abstract: The novel compounds correspond to the formula: <IMAGE> in which R represents the methyl, ethyl or n-propyl radical. They are prepared starting from  beta -phthalimidoglutaric acid or one of its functional derivatives by reaction with an amine H2N-R or a salt thereof, or from a 4-aminopiperidine-2,6-dione substituted on N<1> by R or one of its salts by reaction with phthalic anhydride, phthaloyl chloride or an activated derivative of phthalimide. The compounds, in particular those in which R represents the n-propyl radical, are able to suppress the growth of tumours and have a very low toxicity.
Patent GB-1236026-A (GB)
Title: Improvements in or relating to the production of polyvinyl aromatic compositions
Inventor: SQUIRE JOHN MANSEL
IPC: C08F291/02
Filed: 1967-11-01
Abstract: 1,236,026. Toughened polyvinyl aromatic compositions. BRITISH PETROLEUM CO. Ltd. 10 Oct., 1968 [1 Nov., 1967], No. 49702/67. Heading C3G. A toughened polyvinyl aromatic composition is produced by a process comprising (1) dissolving a rubber in a monomeric vinyl aromatic compound, adding water and polymerizing to a conversion which does not exceed 10% under non-suspension conditions in the presence of a free-radical initiator; (2) adding preformed polyvinyl aromatic compound and dissolving until at leat 10 but not more than 40% polyvinyl aromatic compound is in solution; and (3) adding a suspending agent and completing polymerization. Acrylonitrile may be present in stage (1) and/or stage (2). In the example, a polybutadiene solution in styrene and water is prepolymerized, bead polystyrene is added and polymerization completed in suspension. Reference has been directed by the Comptroller to Specification 1,051,434.
Patent GB-1207344-A (GB)
Title: An article comprising sheet material and provided with anchoring elements
Inventor: BENGTSSON SIGURD WALTER
IPC: B63B21/08
Filed: 1967-11-02
Abstract: 1,207,344. Covers for vehicles. S. W. BENGTSSON. 2 Nov., 1967 [7 Nov., 1966; 9 Dec., 1966], No. 49816/67. Heading B7J. [Also in Division E2] An article adapted to be used as a protective cover e.g., a tent, tarpaulin or vehicle cover comprises sheet material having a hem provided with a plurality of cut-outs, each cut-out receiving a head 12 of a respective elongate anchoring element 10, each element having means for engagement by an anchoring means, and respective surfaces 15 on opposite sides of the hem engaging a fold of the hem so that when the said anchoring means is connected to the said element and is pulled in an outward direction from the hem the force of the pull is applied by the surfaces to the fold. In one form Fig. 1, each anchoring element 10 is preferably made of synthetic plastics material and the means for engaging the anchoring means is the material surrounding a hole 11 formed in the head 12 from which parts 13 providing the surfaces 15 which engage the fold of the hem extend; the surfaces 15 are toothed and shoulders 14 are defined between the parts 13 and the head and outer edges 23 of the cut out in the hem engage the shoulders 14. The tips of the teeth are disposed in planes 16 for the respective parts 13 which are at an angle slightly less than 180 degrees to each other. The element is wedge shaped from front to rear with the blunt end engaging the fold of the hem. In a modification the edge portions of the element are thicker than the central portions so that they form a frame surrounding the element. This form of construction can also be provided with projections at the ends of the parts 13 which protrudes through apertures in the hem fold. The element can be provided with a hook in addition to or in place of the hole 11. An element is also described which is made of wire with a central loop and parts 13 which extends substantially tangentially to the loop.
Patent GB-1071451-A (GB)
Title: Improvements in and relating to turbo chargers
IPC: F01D21/00
Filed: 1963-12-18
Abstract: 1,071,451. Plate heat exchangers. INTERNATIONAL HARVESTER CO. Dec. 18, 1963 [April 5, 1963], No. 49946/63. Heading F4S. [Also in Division F1] In a turbo-charger (see Division F1) in which air from the compressor 26 is passed through a cooler, the air enters the compressor through an inlet 100 and central passage 98 and discharges from the compressor through spaces between spiral passages 120, 122 of the cooler to an outlet 104 for cooled air. The spiral passages are arranged side by side and cooling water flows through them from an inlet 112 to an outlet 114. Fins 128 (see also Figs. 3 and 4) are disposed in the air path of the cooler to increase heat transfer.
Patent GB-1326028-A (GB)
Title: Condensation products of phenols and polycetoacetic acid esters and process for their manufacture
IPC: C08K5/105
Filed: 1970-10-21
Abstract: 1326028 Phenol-polyacetoacetic acid ester condensation products FARBWERKE HOECHST AG 21 Oct 1970 [23 Oct 1969] 50018/70 Heading C2C The invention comprises phenol-polyacetoacetic acid ester condensation products of the formula in which R 1  and R 2  may be the same or different and one hydrogen or C 1 -C 4  alkyl radicals, R 3  is a saturated aliphatic, aromatic, arraliphatic or cycloaliphatic hydrocarbon radical having 2-12 carbon atoms and a valency equal to n, and n is an integer from 2 to 4. They may be prepared by reacting a phenol of formula with a polyacetoacetic acid ester of formula R 3 (OOCCH 2 COCH 3 ) n  in the presence of gaseous hydrogen chloride at - 10‹ to + 15‹ C. in the presence of an aliphatic mercaptan in an amount of 0À05-0À5% by weight, based on the polyacetoacetic acid ester used. The compounds may be used as stabilizers for polymeric materials or in admixture with suitable carriers as fungicides or bactericides.
Patent GB-1164808-A (GB)
Title: Novel Hydrogen-Bonded Compounds and Pharmaceutical Compositions prepared therefrom
Inventor: SACKLER RAYMOND RAPHAEL
IPC: A61K9/02
Filed: 1966-11-09
Abstract: 1,164,808. Suppositories. MUNDIPHARMA A.G. 9 Nov., 1966, No. 50229/66. Heading A5B. [Also in Division C3] Pharmaceutical preparations comprise, as a suppository base, a compound consisting of a polymeric polycyclohexose moiety and a polyoxyethylene glycol moiety which are hydrogen-bonded together, and a pharmacologically active substance. The polyoxyethylene glycol preferably has a molecular weight of from 200 to 6000 and the polycyclohexose may be gum guar, pectin, algin, carboxymethylcellulose or a mixture thereof. The hydrogen-bonded compounds preferably contain from 5 to 40 per cent by weight of the ipolycyclohexose moiety and from 60 to 95 per cent by weight of the polyoxyethylene glycol moiety. Suitable pharmacologically active substances are antibiotics, antiseptic agents, germicides, contraceptive agents, hormones, steroids, analeptic agents, diuretic compounds, sedative agents, central nervous system stimulants, analgesic medications such as aspirin and choline salicylate, laxative and narcotic medications and cardiotonic agents.
Patent GB-1374759-A (GB)
Title: Crankdriven reciprocating mechanisms
IPC: D05B27/14
Filed: 1970-10-23
Abstract: 1374759 Sewing; tufting L M BALLAMY 19 Oct 1971 [23 Oct 1970] 50460/70 Heading D1G [Also in Division F2] In a sewing or tufting machine a crank 45 on a main shaft 5 drives the needle bar 53 and oscillates the cloth feed mechanism through a series of links, and the needle bar may be stopped and held at the top of its stroke without stopping the crank or the other links. The crank drives a connecting rod 48 carrying a pin 50 which is rotatably held at a selected position along a slot 51 in a transverse link 52. The link is pivoted at one end (71) to the needle bar, and at the other end (54) to a link 55 on second rod 73. At its top end each rod carries a piston 75, 77 in a cylinder 74, 76, and each cylinder is connected through a port 78, 79 to a fluid valve 80. When fluid is pumped into one cylinder (e.g. 74) below the piston, one bar (73) is stopped so that one end (54) of the link 52 is held stationary while the other end drives the free bar (53) up and down. To stop the needle bar 53, fluid is pumped from the one cylinder (74) and into the other (76) so that the second bar 73 reciprocates instead of the needle bar. The pin 50 is adjustable along the slot to adjust the amplitude of the needle bar stroke. The feed mechanism has a free wheel assembly in a casing 41 and a shaft 42 which drives a pair of pulleys 44. The mechanism has a lever 56 with a slot 57 which embraces a pin 70 carried by a control link 69. The connecting rod 48 also has a slot 49 which also embraces the pin 70 so that movement of the connecting rod causes the lever 56 and hence the feed mechanism to oscillate. To raise the feed mechanism off the throat plate 65 a lever 63 is raised thus causing a lever 61 to push down an arm 58 on the feed assembly to pivot the feed assembly about the shaft 42. A spring 59 normally biasses the lever 58 upwards. To alter the length of stitch the pin 70 mounted on the control link 69 is raised or lowered by moving lever 66 which is pivoted on a bracket 90. Pivot 67 is not connected to lever 66 nor bracket 90, but is merely shown at the same height; its function is to allow link 55 to pivot on rod 73.
Patent GB-1196030-A (GB)
Title: Improvements in or relating to Radar Viewing Systems.
IPC: H01Q3/22
Filed: 1967-11-08
Abstract: 1,196,030. Radar; aerials. SIEMENS A.G. 8 Nov., 1967 [9 Nov., 1966], No. 50687/67. Headings H4A and H4D. The Specification describes a radar system, particularly for use in aircraft to produce a landing aid display, wherein the space ahead of the craft is scanned according to a television-type raster pattern by a pencil beam of CW millimetric radio energy and the resultant echoes used to produce a television-type perspective display, the line scan of the radio beam being produced by frequency modulating the radio energy fed to a radiating horizontal phased array 7, Fig. 3, and the frame scan being produced by directing the line scanning beam on to a horizontal drum reflector 10 directing the beam on to a parabolic reflector 11. The phased array comprises, Fig. 1, a serpentine waveguide 1 having parallel sets of radiating apertures 2, the size of the apertures increasing in the direction of energy travel such that equal amounts of energy are radiated by all the apertures, the sets being spaced by # 0 /2, where X 0  is the wavelength of the centre frequency and the electrical length of waveguide between the sets being an integral number of wavelengths # 0 . A millimetric wave of wavelength # 0  passing down the waveguide thus produces a radiated beam in a plane perpendicular to the serpentine. Variation of the wavelength causes the beam to scan in azimuth-i.e. a line scan. In practice the serpentine is formed by partitions 4, Fig. 2, in a box 3, with the apertures 2 opening out into radiating chambers 7. Horn feeders 9, Fig. 3, are added to the openings of chambers 7 and the line scanning beam is directed on to a rotating reflecting drum 10, such that the beam which is reflected off of parabolic surface 11 describes a television-type line/frame scan. In aircraft landing aid use the final television-type display may be as in Fig. 4. To ensure that echoes from the far end A of the runway &c. are received with an intensity at least equal to those from nearer objects, the receiving beam is directed towards point A. In addition the received echoes are heterodyned with the transmitted wave, such that a beat signal is produced at a frequency proportional to range and by feeding the beat signal through an amplifier having a rising frequency/ amplification characteristic weak echoes from distant targets are brought up to the level of those from nearer targets. Echoes giving beats at specific frequencies may be used to provide range markers BC, DE.
Patent GB-1210386-A (GB)
Title: Strainer bag attachment arrangement
IPC: B01D29/13
Filed: 1967-11-08
Abstract: 1,210,386. Filter bag. AMERICAN FELT CO. 8 Nov., 1967 [15 Nov., 1966], No. 50754/ 67. Heading B1D. A filter bag of needled, synthetic felt has a sewn hem 18 enclosing a stainless steel or polyformaldehyde ring 19 which is of such diameter as to suspend the bag from the external flange 13 of a plate 10, through which paint, oil or fruit juice is delivered to the bag for filtering. The bag is mounted on plate 10 by deforming the ring and pushing it sideways over flange 13, then pulling the bag down (Fig. 3, not shown). The bag is similarly removed for washing. Ring 19 could be otherwise attached to the bag, and may be a tight fit round plate 10.
Patent GB-1428717-A (GB)
Title: Component for golf club with interchangeable heads
IPC: A63B53/04
Filed: 1973-11-01
Abstract: 1428717 Golf clubs F FRANCHI 1 Nov 1973 50763/73 Heading A6D A golf club having interchangeable heads includes a base plate 10 fixed to the shaft A and having means for detachably securing a selected one B of a set of golf club heads of different shapes and angles. In a first embodiment (Figs. 1, 2) each head B is provided with a pair of projections 38, 40 which engage holes 34, 36 in the base plate 10. A spring catch 22 engages a slot 44 in projection 38 to retain the head in position. The slot 44 may have an inclined surface to increase the clamping action of spring 22. The head B is released by moving actuating member 26 of spring 22 in direction of arrow X. In a second embodiment (Fig. 4) the head is held in position by a cross pin 24a passing through holes in the projections 38a, 40a on the head. The cross pin 24a has eccentric end portions 50, 52 which cause a clamping action when the cross pin 24a is rotated by handle 26a.