baber/WOPTO huggingface dataset:
Patent GB-1396848-A (GB)
Title: Device for converting a stack of sheets into a sheet-by- sheet flow
IPC: B65H29/66
Filed: 1973-09-17
Abstract: 1396848 Feeding sheets GRAPHAHOLDING AG 17 Sept 1973 [21 Sept 1972] 43587/73 Heading B8R Sheets are separated from an on-edge pile 1 supported on conveyer belts 2 by a friction belt assembly 9 swingable about a shaft 6. The separated sheets are fed into converging inlet 32 formed between the upper end of belt assembly 9 and pressing belts 31 and forwarded to belts 30 and then on to horizontal belts 27. Separation is assisted by providing polygonal pulleys 20 and 21 for the lowermost belt 24 of the articulated belt assembly 9, so that the pile is repeatedly knocked as the pulleys rotate. Further assistance is provided by an air blast from nozzle 47. The pile is advanced on belts 2 until the belt assembly 9 is displaced sufficiently to engage a feeler 46 whereupon the drive to the belts 2 is interrupted by a switch 45. Upon feeding of several sheets the belt assembly 9 becomes disengaged from the feeler and the belts 2 are again driven. A further feeler 48 between the belts 2 detects the presence of a pile. If no pile is present the drive for the belts 2 is switched into higher gear to move a following pile rapidly into position for separation. In a further embodiment (Figs. 3-5, not shown), the drive to belts 2 is controlled through an analogue circuit. In this arrangement, swinging movement of the belt assembly 9 due to a depleted or advancing pile is detected as a change in the speed of rotation of a shaft and this change is used to accelerate or retard the drive to belts 2.
Patent GB-1031950-A (GB)
Title: Plastic syringe
IPC: A61M5/178
Filed: 1964-10-26
Abstract: 1,031,950. Hypodermic syringes. DON BAXTER Inc. Oct. 26, 1964, No. 43629/64. Heading A5R. A hypodermic syringe has a thermoplastic barrel and a plunger having a cruciform crosssection, a plunger sealing tip 13 being received on or connected to a necked-down portion 28 of the plunger. The syringe barrel 11 and the plunger sealing tip 13 are made of polypropylene or polyethylene. The tip 13 has a forward face conforming approximately to the forward end of the barrel bore and a cylindrical sealing face 35. The rear of the tip is spaced from the barrel but has radial guide wings 36, 37. The tip either has a recess for receiving the conical nose 26 of the plunger 22 or is integral with the plunger (Fig. 6 not shown). The plunger comprises four radial ribs connected to the plunger nose or the plunger sealing tip and at the other end to a finger pressure disc 23. The syringe has a needle protector (not shown). The sealing face of the sealing tip is lubricated by a fluorocarbon lubricant containing trifluorochlasethylene polymers. The barrel wall is . 015 to 040 inches thick. The bore of the barrel tapers towards its forward end, differing in diameter by 001 to .003 inches between its ends. The diameter of the plunger exceeds the diameter of the bore by .001 to . 008 inches.
Patent GB-1286849-A (GB)
Title: Attachment device for a retaining belt
Inventor: SEYBOLD ROLF
IPC: B60R22/195
Filed: 1969-09-05
Abstract: 1286849 Seat belts R SEYBOLD 5 Sept 1969 [6 Sept 1968 8 Nov 1968 22 April 1969] 43985/69 Heading A3V [Also in Division F2] An energy-absorbing attachment device for a vehicle seat belt has one connecting member 4"', 1' for anchoring the device and another 1 for connection with the belt, two plasticallydeformable bodies 2, 2' or 2, 4", and at least one tool 17, 17' for plastically deforming each body if the connecting members are drawn apart under tensile stress, the line of action of the forces between the bodies and the coacting zones of the tools being inclined to the direction of stress and the deformation forces applied to the bodies remaining substantially constant over the path of relative movement between the tools and the bodies, means being provided to reduce the effect of friction between the bodies and their respective co-acting tools during the change over from static to dynamic friction. The friction reducing means may be projections on, or galvanisation or plating of, the surface of the tools and/or bodies, or alternatively the angle of contact between the tools and bodies can be selected at between 10 and 30 to minimise the frictional work necessary, the cross-sections of the bodies preferably being reduced adjacent the tools to achieve this. The device can be adapted to operate in two stages, one plastically-deformable body (2) being deformed firstly by a small load and the other body (4") only being deformed later by a larger load. The plastically-deformable bodies are preferably made of steel of tensile strength 50 Kg/mm<SP>2</SP> and the tools of steel of tensile strength 100 Kg/mm2.
Patent GB-1116152-A (GB)
Title: Means for locating a workpiece in a required machining position on a faceplate of a lathe, or on the table of a milling machine
Inventor: BRADBEER STANLEY THOMAS
IPC: B23Q1/54
Filed: 1963-11-11
Abstract: 1,116,152. Work-locating fixture. AUTODYNE ENGINEERING Ltd. 8 Feb., 1965 [11 Nov., 1963], No. 44382/63. Heading B3B. A fixture for securing a workpiece to a lathe faceplate, or to a milling machine table, comprises a back-plate 1, Fig. 1, an angle-plate 2 having holes 4 therein, and workpiece locating devices 3, which can be secured in the required holes 4. Plate 2 is vertically adjustable on plate 1, and can be set in the required positions D, E, F, by using slip gauges between blocks 15, 17, and plate 2 and devices 3. Each of the latter comprises a bush 7, Fig. 2, having an eccentric bore in which is fitted a trunnion 10 formed with a hexagonal head 11, which in turn has a worklocating pin 12 thereon. Head 11 may have a series of holes into which the pin 12 can be secured. Some of the pins 12 may be replaced by clamping screws. Plate 2 may be angularly adjustable, and back-plate 1 may have holes 22 therein, for securing balance weights thereto. In a modification, plate 2 is reversed as shown in the Figure accompanying the complete Specification, and a single datum block 15 is provided.
Patent GB-1354926-A (GB)
Title: Polyimides
IPC: C08G73/10
Filed: 1971-09-23
Abstract: 1354926 Copolyimides UPJOHN CO 23 Sept 1971 [25 Sept 1970 16 March 1971] 44462/71 Heading C3R A copolyimide (I) has recurring unit (U) where in 10-90% of (U), R is and in the remainder of (U), R is and/or (I) may be made by reacting benzophenone- 3,3<SP>1</SP>,4,4<SP>1</SP> - tetracarboxylic acid dianhydride with a mixture of bis-(4-aminophenyl) methane and 2,4- and/or 2,6-toluenediamine, or by reacting the anhydride first with one diamine and then with the other(s), yielding the corresponding polyamic acid (A) The reaction may be performed in an inert organic solvent (S) at from below 50‹ C. to up to 175‹ C. in anhydrous conditions (A) is usually formed in solution in solvent (S), and may be isolated, e.g. by evaporating (S) or adding a non-solvent. (A) may then be cyclized to (I) by thermal treatment or by treatment with an acid anhydride, preferably in the presence of a tertiary amine, at #200‹ C. Or (I) may be made from the tetracarboxylic acid dianhydride and 4,4<SP>1 </SP>- methylenebis(phenyl isocyanate) and toluene 2,4- and/or 2,6-di-isocyanate, in a dipolar aprotic solvent, at from ambient temperature up to 160‹ C. The di-isocyanates may be mixed before the dianhydride is added, or the toluene di-isocyanate may be first reacted with the dianhydride, followed by addition of the other di-isocyanate. Co. polyimide (I) may then separate as a solid from the reaction mixture, or, if the proportion of units derived from toluene di-isocyanate is #70%, (I) may remain in solution, and may be precipitated therefrom by adding a non-solvent for (I). Uses.-(I) may be moulded by sintering or hot pressing to form sheets, bushings, seal-faces, electric insulators, compressor-valves and impellers, pistons and piston-rings, gears, threadguides, cams, brake-linings, clutch-faces, or abrasive articles, e.g. grinding-wheels. Specication 1,354,927 is referred to.
Patent GB-1262366-A (GB)
Title: Improvements in or relating to doctor blade holders
Inventor: BATTRAM RONALD
IPC: D21G3/00
Filed: 1969-09-09
Abstract: 1,262,366. Doctor blade holders. WALMSLEYS (BURY) Ltd. 8 Sept., 1970 [9 Sept., 1969], No. 44504/69. Heading B2L. [Also in Division B6] A doctor blade holder has a slot 26 for receiving a doctor blade 28, said slot opening into a chamber 30 containing an adjustable blade support 32 having lateral supports 34 thereon whereby the blade can be supported at a number of different positions by reversion and/or rotation of the blade support 32. Air can be blown into the chamber 30 through a passageway 36 from a conduit 38 to remove dirt therefrom.
Patent GB-1473686-A (GB)
Title: Moulding apparatus
IPC: B29C33/00
Filed: 1974-10-16
Abstract: 1473686 Moulding vehicle bumpers PHOENIX GUMMIWERKE AG 16 Oct 1974 [26 Oct 1973] 44834/74 Heading B5A Apparatus for moulding elongated U-section articles, e.g. vehicle bumpers comprises a pair of mould side shells 3, 4 defining the outer surface of the article and two further identically shaped mould cover shells 9, 10 each adapted to close the mould independently of the other and each mounted for movement into and out of a mould closing position. As shown, the mould side shells 3, 4 are supported on arms 7, 8 respectively for pivoting about shafts 5, 6. The cover shells 9, 10 are pivotable about shafts 11, 12. Alternatively a series of mould cover shells may be reciprocable over and alternately lowerable on to the side shells. After partial curing in the closed mould, the article is removed-on one of the cover shells for final curing, and the other cover shell is used for a further moulding operation, thereby doubling the output of the apparatus. The article may be of a foamable resin. The cover shells 9, 10 carry a series of clamping elements 14, 15. Dampers may be provided to cushion mould closing and opening. Removal of the article from the cover shell may be assisted by compressed air.
Patent GB-1405128-A (GB)
Title: Assemblies for use with chain-driven mining machines
IPC: E21C29/20
Filed: 1972-10-02
Abstract: 1405128 Chain locks; self sustaining gear GEWERKSCHAFT EISENHUTTE WESTFALIA 2 Oct 1972 [30 Sept 1971] 45338/72 Heading B8B An assembly for stopping the chain of a chain driven mining machine, comprises a rigid body 10 and a pawl 23 detachably supported in a pivot bearing 22 formed integrally with the body 10, the pawl being selectively engageable with the chain wheel of the machine to facilitate tensioning operations on the chain. The body 10 comprises two cast sections butted together to form therebetween the bearing 22 and a pocket 27 for pivotally receiving a mounting piece 28 for leaf springs 29 urging the pawl 23 into chain wheel engagement. A pocket 27 and bearing 22 is formed at top and bottom of the housing 10 so that it may be used in two alternate positions. The spring may be held in an inoperative position by a pin and holes in the mounting piece 28 and a body lug 33, and the pawl may be similarly locked in the inoperative position. The pawl 23 has an integral pin 24 insertable into recesses of the bearing 22 and retained thereinby clamping sleeves. In use, the body 10 is bolted to the side of the machine frame and the machine drive drum bearing is housed in an opening 20 in the body, and the chain wheel is housed between the machine frame and an extension 15 of one of the cast sections of the body 10, this extension having an opening 16 through which the chain wheel can be inserted.
Patent GB-939956-A (GB)
Title: Additives for animal feeds
IPC: A23K20/189
Filed: 1961-12-21
Abstract: An additive for a pig, cattle, poultry or other animal feed consists of a mixture of (1) rennet, papain and/or pepsin, and (2) calcium chloride, calcium acetate and/or calcium lactate.  The .  components (1) and (2) are preferably present in the proportion of 1 : 5; the additive may be included in animal feeds in proportions of between 50 and 200 grams per 100 kilograms of feed.  It is stated that the calcium salt exerts an activating effect on the rennet, papain or pepsin (as the case may be).  Examples disclose the comparative effect of feeds containing mixtures of rennet with calcium chloride in specified amounts.  The following feed constituents are mentioned: carbohydrates, proteins, fish meal, meat meal, maize, corn, mill waste, potatoes, beet and other root crops, green fodder, silage, by-products from the processing of maize and manufacture of starch, mineral salts, skimmed milk and drinking water. p
Patent GB-1211463-A (GB)
Title: Method and apparatus for detecting and classifying faults in a sliver or a web of textile fibres
IPC: G01N21/89
Filed: 1968-09-27
Abstract: 1,211,463. Photo-electric textile inspection. CENTRE SCIENTIFIQUE ET TECHNIQUE DE L'INDUSTRIE TEXTILE BELGE. Sept. 27, 1968 [Sept. 28, 1967], No. 46147/68. Heading G1A. In a method and apparatus for detecting and classifying faults in a sliver or a web of textile fibres, the web or sliver is spread to obtain a low density web of the order of some grammes per square meter by an opening machine which may be a multi-stage drafting machine as in Fig. 1 (not shown); it is optically analysed by a photo-cell or photo-cells which are responsive to light transmitted or reflected by a very small web area as the web is fed continuously past them; and, the electrical output or outputs are fed to fault classification apparatus. The spread web is supported and conveyed between two belts 10, 11, Fig. 2, of a synthetic material of for example a polyester, under tension, and a transverse strip of light from a source 15, which may be a quartz iodine lamp; is passed through the web and focused by a lens 18 on to a photo-cell, the lens photo-cell path including a rotating multi-face mirror 19 and possible two planar mirrors to foreshorten the apparatus which rotating mirror causes the image of successive strands across the web to fall on the aperture of a diaphragm before the cell. The apparatus may perform a second test of reflectivity by the spread web to reveal both accumulations of fibres, and the presence of foreign bodies. The web may pass over a background of chosen colour at the point of the reflection test, and a direct incident beam Ib or a reflected incident beam Ia may be used. The diffused light from the yarn is concentrated on to a second photo-cell by lens 18, and reflection RT from the belts is away from the lens. Polarising filters may be introduced to suppress parasitic reflections, and delay is introduced into the "transmissivity" signal circuitry to compensate for the distance between the two test points. In a second embodiment the web is illuminated by a flying spot scanner through a beam splitting semi-tranparent mirror, and the transmitted and reflected beams are taken off through the edge of planar light guides having coatings to facilitate internal reflections, and applied to photo-multipliers. In a further embodiment the web may be monitored by a number of transverse lines of cells, gated by F.E.Ts to a plurality of amplifiers under the control of a shift register. Comparative feed, and take-off speeds for the drafting rollers are exemplified. Needles may be used in spreading the web, and the web may be doubled between stages. A thickening fault pulse may start and stop a chain of clock pulses to indicate fault length.
Patent GB-1467998-A (GB)
Title: Head rails for strip curtains
IPC: A47H1/144
Filed: 1975-10-23
Abstract: 1467998 Suspending curtains LOUVER-LITE Ltd 23 Oct 1975 [25 Oct 1974] 46361/74 Heading A4B A unit for suspending curtain strips 1, e.g. for door openings, comprises a headrail 3 having an inverted substantially U-shaped cross-section, one or more tubes 7 with a longitudinal slot 8 disposed within and supported by the headrail 3, and one or more rods 9 disposed within the tube(s) 7, the upper edge(s) of the curtain strip(s) 1 being wrapped around the rod(s) 9 to extend through the slot(s) 8 to be trapped between the rod 9 and tube 7 and prevent its separation from the rod. The headrail 3 has side grooves 4 which respectively receive a grub screw 5 and a part 6a of a wall bracket 6.
Patent GB-1015724-A (GB)
Title: Improvements in or relating to minerals
IPC: C04B41/70
Filed: 1962-12-11
Abstract: 1,015,724. Laminates. E. A. DUFFIELD. Nov. 26, 1963 [Dec. 11, 1962], No. 46702/62. Heading B5N. A composite material is made by compressing a plurality of porous sheets, each sheet having applied to one or both sides thereof a mixture of a natural or synthetic resin, and powdered slate, mica or steatite having a particle size not greater than 50 B.S.S. mesh, the weight of mineral powder to resin being at least 1: 1, the compression being such as to remove stratification from the material. Preferably the porous sheet is paper, although textile fabrics e.g. linen or silk, or open weave mineral fabrics e.g. silica fabric, glass fabric or glass fibre sheets may be used. Preferably the mineral used is in micronized form. The resin may be thermosetting, e.g. a lac, a phenolic, an epoxy, a vinyl acetate polymer, a polyester, an urea, a melamine or a silicone resin, or thermoplastic e.g. a vinyl chloride polymer, a polyolefine such as polyethylene or polypropylene, polystyrene, an acrylic or methacrylic resin or P.T.F.E. Wire mesh may also be incorporated with the laminae. In the production of the laminates, a liquid mixture of the resin and the mineral powder is applied to the porous sheets by usual methods, e.g. coating rollers, brushing or passing the sheet through an impregnating bath, a plurality of the sheets are superimposed to form a stack, and compressed at a suitable temperature. The resin may be a solution in an inert solvent, e.g. methylated spirits, the sheets being dried after impregnation thereof. The laminate may be formed in a hydraulic press at a pressure of 1000-2000 p.s.i. and if the resin is thermosetting, the plates may be heated e.g. from 50-200‹ C. to cure the resin, a suitable curing time being from 20-35 minutes.
Patent GB-1122568-A (GB)
Title: Improvements in and relating to electronic display apparatus
Inventor: LAMBERT PETER GABRIEL
IPC: G09G1/10
Filed: 1964-11-17
Abstract: 1,122,568. Cathode-ray tube displays. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 9 Nov., 1965 [17 Nov., 1964 (2)], Nos. 46805/64 and 46807/64. Heading H4T. In an arrangement for tracing Alpha- Numeric characters &c. on the screen of a cathode-ray tube by appropriate orthogonal deflections of the beam each deflection is controlled by the output of an integrator (e.g. a ramp generator) to which a sequence of pulses of number determined by the amplitude of deflection required is supplied so that each character &c. is represented by a substantially continuous trace and the position of each character is determined by combining positioning signals with the character deflection signals. Figs. 2A and 2B show the general scheme which comprises a core store containing binary signals representative of all of the required characters, the store, when addressed under the control of a format circuit, supplying signals indicative of the required character to a decoding circuit and thence to a symbol network comprising a plurality of symbol generating circuits stepped cyclically by a ring counter and supplying sequences of pulses appropriate to the X and Y deflections in both the positive (ADD) and negative (SUB) directions together with beam brightening pulses BU. The X and Y pulses are those supplied to respective histogram circuits (Fig. 3, not shown) producing, e.g. in respect of the tracing of the character " B " (Fig. 5, not shown), the histograms of Fig. 6 (not shown) which are fed to respective ramp generating circuits each comprising an integrator of the kind depicted in Fig. 4 (not shown). The outputs of the latter are then supplied to respective mixers together with positioning signals (lines (a) and (b)) derived, by an X-position counter triggered by the 23 output of the ring counter, the output of the X-position counter triggering the format control circuit which in turn triggers the Y-position counter and the outputs from both position counters being converted to analogue form. The format circuit controls the maximum count of both counters and also inserts regular spaces where required, e.g. in columinized data. In a modification (Figs. 5 and 8, not shown), a core store is not provided, digital control signals (e.g. from a computer &c.) being utilized to control the generation of a symbol or if required a line trace, e.g. a section of a graph. For generation of line trace deflection signals the output of a counter (Fig. 9, not shown) is compared with digital signals (e.g. from a computer) representative of the desired length, the counter being stopped and a brightening pulse terminated when the count is equal to such length. An arrangement whereby different selected ones of a plurality of display tube may be selectively supplied with data appropriate thereto is described with reference to Fig. 10 (not shown).
Patent GB-1484369-A (GB)
Title: Drive for programmable sewing apparatus
IPC: D05B21/00
Filed: 1974-10-29
Abstract: 1484369 Sewing machine work feed STAHL-URBAN CO 29 Oct 1974 [1 Nov 1973] 46834/74 Heading D1G [Also in Division F2] In a drive for linearly moving a driven member 85 under the control of a programme 12 a rotary shaft 79 is driven continuously and rollers 87, 87a carried by the member 85 are adapted to contact the shaft 79 and be brought into a skewed position, as shown in Fig. 6, in order to cause linear movement of the member 85. The skewing of the rollers is controlled by a crank 103 on the mounting of roller 87a connected to a chain 99 driven by a stepping motor 35 which is responsive to signals generated by the programmer 12. Two such drives are used to position a carriage 17 in an automatic high-speed sewing machine.
Patent GB-1249634-A (GB)
Title: Centrifugal concentrator
IPC: B04C5/22
Filed: 1968-10-10
Abstract: 1,249,634. Hydrocydones. AJEM LABORATORIES Inc. 3 Oct., 1968 [10 Oct., 1967], No. 47046/68. Heading B2P. In a hydrocyclone for separating solids from a liquid and comprising a frusto-conical separation chamber and a tangential feed inlet, means are provided to physically break up accumulated solids, prevent clogging of the solids-discharge outlet. In Fig. 2, a plunger rod 42 having a ferromagnetic armature 52 is adapted to be reciprocated intermittently by a magnetic coil 54 so as to break up any accumulation of solids tending to clog the hydrocyclone outlet 20. In a modification, Fig. 3, the plunger rod 42a is reciprocated by means of a lever 62 which is made to pivot about an axis 64 by means of a motor-driven eccentric 74 which engages a wheel 72 rotatably mounted on the free end of the lever. In another embodiment, Fig. 5, liquid under pressure is supplied through a tube 94 and exit through ports 104 in a spray head 102 downwardly into the outlet 20c. In a further embodiment, Fig. 4 (not shown), a bladed impeller is mounted in the outlet on a shaft rotated through belting by a motor.
Patent GB-1404763-A (GB)
Title: Kitchen cabinets
IPC: A47B77/10
Filed: 1971-10-11
Abstract: 1404763 Kitchen cabinets BERRY  FURNITURE Ltd 24 Oct 1972 [11 Oct 1971] 47182/71 Heading A4H A kitchen cabinet has at least one sliding top 9 which is spring biased to a forwardly projecting position and is held in its retracted position by a releasable catch. The top 9 slides on runners 14 15, and 16 secured respectively to the top 9 and to a fixed top 10 of the cabinet. The biasing is effected by tension springs 18 secured at its respective ends to the sliding top 9 and the fixed top 10. Stops (12, 13) Fig. 1 (not shown), limit the outward displacement of the top 9. Interengagement of detents 24, 25 of the catch is released by manual displacement of a U-shaped strip 19 against the action of a compression spring 27.