baber/WOPTO huggingface dataset:
Patent GB-1405774-A (GB)
Title: Apparatus for the stepwise feed of workpieces
IPC: B23Q7/05
Filed: 1972-09-26
Abstract: 1405774 Feeding workpieces BRUDERER AG 26 Sept 1972 [1 Oct 1971] 44445/72 Heading B3W Apparatus for the stepwise feed of a workpiece particularly of sheet metal to a press, comprising two contrarotating feed rollers rotating alternately in opposite directions, means for moving the rollers alternately towards and away from each other, i.e. into and out of feeding position, to coincide with the change in their direction of rotation and a hold down which is moved into and out of operative position as the rollers are moved out of and into feeding position respectively. As shown, the upper roller 3 is moved towards and away from the lower fixed roller 2 by means of a rocker 4 actuated by a cam 15 on a rotary shaft 14 through linkage 9, 8, 7 and a spring 5, the other end of the rocker being suspended from the feed roller frame by a spring 6. A hold down 16 is pivoted to the rocker 4 at 16a and has at each end an arm 17 pivoted to the frame at 17a. A workpiece support 47 is adjacent the roller 2. The shaft 14 is driven by gears 36, 37 and the cam 15 is so shaped that while the roller 9 travels over portion 15a between points A and B the roller 9 is raised causing the hold down 16 to be raised and the rocker 4 to lower the roller 3 to press the sheet metal 46 against the roller 2, the rollers rotating in the feed direction. While the roller 9 travels over cam portion 15b the rocker 4 is raised and the hold down 16 lowered, the rollers 2, 3 being parted as their direction of rotation is reversed. Rotation of the shaft 14 also drives the rollers 2, 3 alternately in opposite senses via a pivoted lever 28. The lever is pivotable about a bolt 39 mounted eccentrically on a disc 38 itself eccentrically disposed and rotatable within the gear 36. The disc 38 also carries a gear 40 which meashes with a fixed ring gear, the arrangement being such that on rotation of the shaft 14 the bolt 39 reciprocates along the diameter of the gear 36. A block 33 fixed to the other end of the lever 28 is slidable in a rocker 34 which is connected to the feed rollers drive shaft 42. The feed stroke can be varied by adjusting through a spindle 31 the vertical position of a rotatable pivot 29 through which the lever 28 passes. To accommodate different thicknesses of workpiece, the lever 8 is vertically adjustable by means of a piston and cylinder unit 10; an associated nut 13 carries a height scale. To introduce a workpiece between the rollers the rocker 4 is raised at the left hand end, Fig. 2, by raising the piston 10, the other end of the rocker bearing on a bolt 18 which, if chambers 22a, 23a of a fluid pressure device are pressurized, is unable to move downwards and thus acts as a pivot for the rocker 4, causing the hold down 16 to be raised with the rocker. If the chamber 22a is not pressurized, the bolt can be lowered and the hold down is not raised with the rocker.
Patent GB-1019401-A (GB)
Title: Improved weft-detecting method and apparatus
IPC: D06C3/00
Filed: 1963-11-11
Abstract: 1,019,401. Testing fabrics. MOUNT HOPE MACHINERY Ltd. Nov. 11,1963 [Jan.24, 1963], No. 44466/63. Heading D1S. [Also in Division G1} Apparatus for detecting abnormal relationship between the warp and weft of a travelling woven web, e.g. skew or bow, comprises means for subjecting the web to a transverse tension and means for measuring and comparing the magnitude and sense of the angular displacement of the warp elements relative to the main axis of the web, at the edges of the web. As shown (Fig. 4) transverse tension across a web 10 is produced by two niprolls 16, and the angles between the warp thread 12 and the longitudinal direction of travel, near the edges 21, are measured by detectors 20, each having a caster wheel 22 (Fig. 5) engaging a warp thread along the line of tension A-A. The wheel 22 is supported in a fork 36 attached to a vertical shaft 34 carrying a bracket 38 fixed to an armature differentially varying the inductance of two coils 46. The assembly is housed in a casing 30 attached to a bracket 54 by a pivot 58 and an adjustable leg 56, and secured to a transverse rod 50. The coils 46 are connected in a bridge circuit whose output is indicative of the magnitude and direction of rotation of the caster wheel 22. When the web is skewed (Fig. 2), the two detectors 20 give similar signals whose sum indicates the magnitude and sense of the skew, and whose difference is zero. When the web is bowed (Fig. 3), the two detectors give similar signals of opposite phase whose sum is zero and whose difference indicates the magnitude and sense of the bow. To correct for lateral displacement of the web a third detector 24 (Fig. 4) is located on the centre line, and its output signal is doubled and subtracted from the sum of the signals from the other detectors 20.
Patent GB-970941-A (GB)
Title: New quinoline derivatives and process for the preparation thereof
Inventor: WIGGINS LESLIE FREDERICK
IPC: C07D215/22
Filed: 1959-12-31
Abstract: The invention comprises compounds of general formula <FORM:0970941/C1/1> wherein R1 is an alkyl (1-5C) group, a cycloalkyl group containing 5 or 6 ring carbon atoms, an aryl group, or an aralkyl group; R2 is a saturated or unsaturated alkyl (1-5C) group or an aralkyl group; R3 is a saturated or unsaturated alkyl (1-4C) group or an aralkyl group; and the ring A may be substituted in the 6, 7 or 8 position by a halogen atom, an alkyl (1-5C) group, an alkoxy (1-5C) group or a trifluoromethyl group: and their preparation by reacting an alkali metal salt of a compound of formula <FORM:0970941/C1/2> with a compound of formula R2X where X is a chlorine, bromine or iodine atom; the alkali metal salt may be formed by dissolving the metal in an alkanol (1-4C) and reacting the alkoxide formed with said compound.  Starting materials II are formed by reacting substituted anilines and diethylmalonates with removal of ethanol. Pharmaceutical compositions comprise compounds I of the invention with pharmaceutical carriers; tranquillising, analgesic and antibacterial properties are mentioned.  The Provisional Specification refers to R1 also as substituted aryl.  Specification 855,929 is referred to.
Patent GB-1293142-A (GB)
Title: Curable epoxide resin compositions
Inventor: BULL CHRISTOPHER HUBERT
IPC: C08G59/68
Filed: 1969-09-09
Abstract: 1293142 Curing epoxy resins CIBA GEIGY (UK) Ltd 19 Aug 1970 [9 Sept 1969] 44578/69 Addition to 1153639 Heading C3B Curable compositions comprise: (a) an epoxide resin, (b) as heat curing agent dicyandiamide or a polycarboxylic acid pelyhydrazide, and (c) as accelerator a compound in which R is H or a group of formula  R 1 , R 2  and R 3  are each H, halogen, nitro or an optionally substituted alkyl, alkoxy, aryl or aryloxy group; R 4  is an alkyl, alkenyl, cycloalkyl, cycloalkenyl or aralkyl group which may be substituted by halogen, hydroxyl or cyano; R 5  either has the same definition as R 4  or is an alkoxy group substituted by halogen, hydroxyl or cyano, or R 4  and R 5  together may form a heterocyclic ring with the N atom; X is O or S. When the curing agent is dicyandiamide at least two of R 1 , R 2  and R 3  are other than H and when the curing agent is a polycarboxylic acid polyhydrazide either at least one of R 1 , R 2  and R 3  is other than H or R is H or NH.CX.NR<SP>4</SP>R<SP>5</SP>. The accelerator may be used at 0À01-10 parts by wt. per 100 parts by wt. of epoxy resin. The hydrazide, e.g. sebacyl, adipyl, oxalyl or isophthalyl dihydrazide, may be used to provide 0À35-0À6 hydrazide group per epoxide group. Dicyandiamide may be used at 1-20 parts by wt. per 100 parts by wt. of epoxy resin. Examples relate to the curing of a diglycidyl ether of bisphenol A with (a) isophthalyl dihydrazide and N(3 - chloro - 4 - methylphenyl) - N,N<SP>1</SP>- dimethylurea (I), N(4 - chlorophenyl) - N,N<SP>1</SP>- dimethylurea and N - (3 - chloro - 4 - methylphenyl) - N,N<SP>1</SP> - dimethylthiourea (II) and (b) with dicyandiamide and I, N-(3,4-dichlorophenyl) - N<SP>1</SP>,N<SP>1</SP> - dimethylurea, N(3 - chloro- 4 - methoxyphenyl) - N,N<SP>1</SP> - dimethylurea, N(3 - chloro - 4 - ethylphenyl) - N<SP>1</SP>,N<SP>1</SP> - dimethylurea, N(N<SP>1</SP> - 3,4 - dichlorophenylcarbamoyl) - morpholine, N - (4 - methyl - 3 - nitrophenyl) - N<SP>1</SP>,N<SP>1</SP> - dimethylurea and II. Conventional fillers and extenders may be present.
Patent GB-1224158-A (GB)
Title: Improvements in a method and apparatus for assembling and filling syringes
IPC: A61M5/00
Filed: 1969-09-10
Abstract: 1,224,158. Feeding syringes. UPJOHN CO. 10 Sept., 1969 [16 Sept., 1968], No. 44693/69. Heading B8A. [Also in Division A5] Apparatus for conveying syringe barrels 91 along an assembly line comprises parallel superimposed screws 73, 74, Fig. 3, in which the barrels engage, a barrel top flange being supported on a guide (82), Fig. 4 (not shown), parallel to the axes of screws 73, 74 which are intermittently rotated via cam followers 61, (61A) engaging in cam members 47, 47A on a continuously rotated shaft 42. In an alternative embodiment, Fig. 58, nested elongated channel members 663, 707 have notches 668, 721, respectively, in which the barrels may engage adjacent a guide 82B. Member 663 is intermittently reciprocated perpendicularly to guide 82B and member 707 is intermittently reciprocated perpendicular to and parallel to guide 82B via cans on a continuously rotated shaft (42B), Fig. 55 (not shown).
Patent GB-960139-A (GB)
Title: Flexible pipe joint
IPC: E21B17/08
Filed: 1962-11-26
Abstract: 960,139. Pipe joints. SHELL INTERNATIONALE RESEARCH MAATSHAPPIJ N.V. Nov. 26, 1962 [Nov. 28, 1961], No. 44697/62. Heading F2G. A flexible pipe joint comprises end flanges 26, 27, screwed to pipe ends 16a, 16b, resilient compression rings 31 arranged between the end flanges, a rigid separator ring 32 between each two compression rings, the rings having a central opening communicating with the bores of the pipes, and connector means between the flanges arranged to permit flexing. The connector weave comprise bolts 36 and the holes 33, by which the bolts 36 pass through the rigid separator rings 32, are of comparatively large diameter, and on the flanges 26, 27 are welded convex washers 44 which mate with movable concave washers 45. To protect the inside surfaces of the rings 31, 32, spacer rings 40 are provided, and the separator rings 32 have shoulders 41, 42 on which the rings 40 rest. The inner surface of each compression ring 31 has a V-groove 46, so that the lips of the groove will be forced outwards by fluid pressure and seal against the separator rings 32. Parts 47 in the spacer rings 40 allow fluid behind them to flow into the bore. Variations in the section of the separator rings 32, giving shoulders of different shape from those shown at 46, are shown and described, or the shoulders may be dispensed with and the rings 40 held between the rings 32 by suitably proportioning their relative diameters. The flexible joint has special application to underwater drilling, where a conductor pipe surrounds a drill, for the passage of drilling mud, and has a flexible joint at each end to allow for the movement of the floating drilling barge.
Patent GB-1015633-A (GB)
Title: Xerographic reproducing apparatus
IPC: G03G21/00
Filed: 1961-12-23
Abstract: 1,015,633. Feeding sheets. RANK-XEROX Ltd. Dec. 23, 1961 [Dec. 23, 1960], No. 45105/61. Heading B6B. [Also in Divisions G2-G3] An electrophotographic apparatus (see Divisions G2-G3) includes the rotary gripper cylinder for feeding original sheets (bearing matter to be reproduced) during scanning as described in Specification 1,015,635, the sheetfeeding apparatus for separating and feeding copy sheets from a pile to an image transfer station as described in Specification 1,015,636, and the sheet grippers for such sheet feeding apparatus as described in Specification 1,015,634.
Patent GB-1190605-A (GB)
Title: Improved Disc Brake.
IPC: F16D55/00
Filed: 1967-10-04
Abstract: 1,190,605. Disc brakes. KELSEY-HAYES CO. 4 Oct., 1967 [5 Oct., 1966], No. 45145/67. Heading F2E. In a disc brake having a caliper 53 held against rotation by a torque plate 39 and having a fluid motor 63 on one side of the disc 21 and a reaction portion 57 on the other side of the disc, a yieldable means 103 has a first end portion 105 fixed to the torque plate and a second-end portion 117 carrying the caliper for movement substantially perpendicular to the disc and means 141 on the caliper is coupled to an intermediate portion 109 of the yieldable means 103 for resisting twisting of the yieldable means and the caliper due to the twisting couple produced about an axis extending substantially parallel with the plane of the disc when the brake pads 73, 91 engage the disc on braking. As shown, a flexible strap 103 mounts the caliper 53 on the torque plate and is sprung so as to urge the reaction arm 57 to the left (Fig. 2) so as to maintain the pad 91 in light engagement with the disc as the pad 91 wears. The other pad 73 is moved towards the disc 21 by a piston 65 which deforms the piston seat 158. The deformation of the seal 158 returns the piston on release of the brake. The caliper 53 and flexible strap 103 are prevented from twisting by a boss 141 on the caliper which engages the side walls 135, 137 of an aperture 133 in the intermediate portion 109. A reinforcing strut 151 couples a web portion 111 and the first end portion 105 to prevent circumferential twisting of the intermediate portion 109. The caliper 53 is slidably mounted on the torque plate 39 by pins 80 which pass through resilient washers (131, Fig. 3, not shown) which compensate for forces, e.g. due to cornering tending to move the caliper axially. The spring strap 103 and resilient washers (131) prevent rattling of the pads and brake components. Radial movement of the caliper 53 during pad wear produces slight relative movement of the pads 73, 91 but the diameter of the disc is large enough to allow for this. The length and spring forces of the arms 109, 113 are such that the brake pad motivating forces are maintained normal to the disc. The pads 73, 91 are bonded and/or riveted to their backing plates 71, 90 which are secured against circumferential movement by projections (77, 79, Figs. 4 and 5, not shown), on the torque plate 39 and slots (95, 97, Figs. 6-8, not shown), on the reaction part 57 of the caliper. Cooling is provided by radially extending passages 35 in the disc. The Specification refers to the description and claim of Specification 1,093,036.
Patent GB-1509259-A (GB)
Title: Illumination and ventilation devices
IPC: F21V23/02
Filed: 1975-10-31
Abstract: 1509259 Lighting and ventilating fittings O RASMUSSEN 31 Oct 1975 45546/75 Headings F4R and F4V A combined lighting and ventilating arrangement for a ceiling comprises two or more elongate reflectors 11A defining a longitudinal passage 20 communicating with the room via an air gap 19 for the forced flow of air therethrough. As shown, a pivoted vane 18 may be adjusted according to whether air flow is into or out of the duct 20. At the rear of each reflector a duct 15 carries a choke coil 16 and the air duct 20 is closed by a cover 21 carrying inlet or exhaust connections. The reflector margins are profiled for interconnection and to support a false ceiling 28. End plates (24) (Fig. 2, not shown) close groups of reflectors and air ducts.
Patent GB-1027927-A (GB)
Title: Improvements in and relating to amplifying circuit arrangements
IPC: H03F5/00
Filed: 1964-11-09
Abstract: 1,027,927. Amplifier circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 9, 1964 [Nov. 12, 1963], No. 45574/64. Headings H3T and H3W. A triode amplifier stage has a transistor in the cathode circuit, grid current being fed back via a Zener diode to the emitter of the transistor so as to compensate for distortion due to loss of anode current in the grid circuit. The stage input is fed to the base of the transistor.
Patent GB-1150850-A (GB)
Title: Change-Over Switch for Pneumatic Signals
Inventor: KRCEK KAREL
IPC: F16K31/02
Filed: 1967-10-09
Abstract: 1,150,850. Valves. ZAVODY PRUMYSLOVE AUTOMATISACE-JINONICE NARODNI PODNIK. 9 Oct., 1967 [14 Oct., 1966], No. 46002/67. Heading F2V. A change-over switch for pneumatic signals comprises a polygonal chamber, each side of which carries a solenoid valve 9-16 adapted to selectively feed a central outlet 20 via a radial bore 18. A number of these switches can be bolted on top of one another to form a stack unit, the switches being isolated from one another by blocks fitted with terminal boards.
Patent GB-919962-A (GB)
Title: Improvements in or relating to the preparation of tri-alkylindium compounds
IPC: C08F4/12
Filed: 1961-12-22
Abstract: Trialkyl indium compounds are prepared by reacting an alkyl halide with an alloy or mixture of indium and magnesium. Preferably the alkyl halide is used in ethereal solution.  The product may be separated by distillation in vacuo or by solvent extraction using e.g. benzene or n-hexane.ALSO:Indium in which substantially all metal impurities are removed to below the limit at which they may be detected by spectral analysis is obtained by thermal decomposition of a trialkyl indium obtained by reacting an alkyl halide with an alloy or mixture of indium and magnesium (see Group IV (b)).
Patent GB-1278549-A (GB)
Title: Process and apparatus for producing multi-ply tubular plastics film by insufflation
Inventor: REIFENHAUSER FRITZ
IPC: B29C48/32
Filed: 1970-09-30
Abstract: 1278549 Laminated tubular films REIFENHAUSER KG 30 Sept 1970 [31 Oct 1969] 46392/70 Headings B5A B5B and B5N Laminated tubular synthetic plastics film 3 is produced by extrusion from a blowing head comprising two concentric and axially spaced nozzles 5, 6, each having a separate blowing means 9 for the extruded film, whereby the degree of stretch and/or cooling imparted to each film may be individually controlled before the films are united. The films may be of the same or different polymers, and included in the blowing medium may be an agent promoting or preventing adhesion. Adhesion may also be promoted electrostatically. The axial spacing of the nozzles may be variable.
Patent GB-1021468-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/22
Filed: 1963-11-27
Abstract: 1,021,468. Centrifugal pumps. ALLIS-CHALMERS MANUFACTURING CO. Nov. 27, 1963 [Dec. 7, 1962; April 15, 1963], No. 46862/63. Heading F1C. In a centrifugal pump, particularly for liquids containing solids, fibrous materials or long stringy material such as rags and intestines of animals, having an axial inlet 11, a tangential outlet 12 and an impeller 14 with a rear shroud plate 29 carrying substantially radially-extending axially-projecting vanes 35, the vanes project at least partially across the pumping chamber 13 and have an axial depth 43 which is a maximum at their radially outer portions and decreases towards their radially inner portions. The vanes, shroud plate and pumping chamber wall form continuous passages 45 each extending from the inlet 11 to the outlet 12 with a minimum size at least equal to a sphere of the same diameter as the inlet 11. This arrangement prevents clogging of the pump. The axial depth of the vanes may reach its maximum at the point P where the distance between adjacent vanes is equal to the diameter of the inlet. Preferably, the maximum axial depth of the vanes is substantially equal to the width of the pumping chamber 13 and is formed at the impeller periphery. The vanes may be radial or curve backwardly with respect to the direction of rotation, and their thickness may be varied. The pumping chamber 13 may be circular or of volute form. To prevent the wedging of long stringy materials in the narrow spaces between the impeller vanes and the opposing wall 36, the impeller may be retracted axially by means of a bolt 54 screwed into a stationary bracket 24. The bracket 24 slidingly supports a bearing cartridge 23 which rotatably supports the impeller shaft 17 but is secured against relative axial movement therewith. Alternatively, the bearing cartridge 23 may be moved by hydraulic means.
Patent GB-1103515-A (GB)
Title: Improvements in synchronising devices
IPC: G04G7/00
Filed: 1965-11-05
Abstract: 1,103,515. Automatic frequency control systems. COMPAGME FBANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 5 Nov., 1965 [12 Nov., 1964], No. 47130/65. Heading H3A. In a circuit for synchronizing a local clock with received sync. pulses in a digital transmission system, the sync. pulses are passed to first and second circuits, each fed by pulses derived from the clock pulses. In the first circuit it is determined whether there is one sync. pulse only in the period t between two clock pulses and for each of these a pulse passes to a logic arrangement. If there is more than a certain number of adjacent periods t when one pulse is present another pulse is passed to the logic arrangement. The second circuit is similar in operation to the first except that the period of inspection is t/4, centred on the mid-point of period t. From the signals passed to the logical arrangement are generated pulses whose width is dependent on the difference in phase of the clock and sync. pulses, and which are used to develop a voltage for the control of the phase of the clock generator. Details of the various circuits are given in the Specification.
Patent GB-1459193-A (GB)
Title: Plant growth container
IPC: B65D85/52
Filed: 1973-10-10
Abstract: 1459193 Receptacles for growing plants FISONS Ltd 7 Oct 1974 [10 Oct 1973] 47251/73 Heading A1E [Also in Division B8] A growing bag for plants and seeds comprises a tubular synthetic resin sack 1, containing growing medium, sealed at the end 2 and at a position 3 so as to leave a length of sack beyond the seal 3. One or more rings formed by cutting at points A, B, C may be placed round the bag to inhibit bellying when a planting slit 12 is cut in the bag wall. An envelope for an instruction leaflet 11 may be formed by a further seal 10.
Patent GB-1376770-A (GB)
Title: Dielectric optical waveguides
IPC: G02B6/122
Filed: 1972-10-13
Abstract: 1376770 Coated products WESTERN ELECTRIC CO Lnc 13 Oct 1972 [14 Oct 1971] 57341/72 Heading B2E [Also in Divisions C3 and G2] A dielectric optical waveguide is prepared by making a die having a surface shape at least a portion of which matches that of a guiding dielectric interface in thedesired waveguide, impressing the die upon the surface of 'an optically transparent, plastic substrate of a first index of refraction, contacting the substrate surface with a liquid material capable of flowing to fill said impression, and applying energy to solidify the liquid material into an optically transparent dielectric film of a second index of refraction, higher than said first index, which adheres to the substrate and fills the impression with a thickness such as to comprise the waveguide. The coating material may be epoxy resin, either undiluted or in solution, or of liquid monomer, especially cyclohexylmethacrylate or a styrene derivative, which is subsequently polymerised "in situ" by initiation either photochemically with the use of benzoin methyl ether or thermally or by means of electron or high energy radiation. The substrate may be of polymethylmethacrylate 14 and is impressed by means of a die, comprising a quartz fibre bonded to a glass plate by an epoxy adhesive, to form a groove 15 which, after coating as above, forms a waveguide 27. The groove-filling material or substrate may contain a dye to provide gain for the guided light.