baber/WOPTO huggingface dataset:
Patent GB-1227525-A (GB)
IPC: G06K13/107
Filed: 1967-11-22
Abstract: 1,227,525. Feeding sheets. LITTLEWOODS OF LIVERPOOL Ltd. 19 Feb., 1969 [22 Nov., 1967], No. 53046/67. Heading B8R. Apparatus for spacing sheets in the feeding direction between a stack and a vacuum roller comprises an endless conveyer whose sheetcontacting run travels in the reverse direction to the feed, thus imparting a frictional force on the sheets to ensure that they are spaced for individual pick-up by the roller. The apparatus may form part of a sorting device, Fig. 1 (not shown), in which sheets in a stack (10) are agitated by a number of coaxial jogging devices (11), and separated from the bottom of the stack by a pair of endless bands 12, which co-operate with a further pair 12a to feed the sheets to a vacuum roller (14). The bands 12, 12a project through slots in a feed-table 17, Fig. 2, while a reverse conveyer, including bands 13a, 13b which project through slotted guide plates 18, acts on the sheets in the opposite direction to the feed direction. The entire reverse conveyer structure, including the plates 18, pivots about spindle 25 to present a variable gap between it and table 17, the adjustment mechanism including a screw 27. The bands 13a, 13b are preferably of circular or elliptical cross-section, and the drive transmissions 31, 30 for the vacuum roller and the reverse conveyer, are preferably operated by separate motors.
Patent GB-1230256-A (GB)
IPC: B42F11/02
Filed: 1969-07-02
Abstract: 1,230,256. Filing papers. J. R. EDMONDS. 2 July, 1969 [3 July, 1968], No. 33342/69. Heading B6E. A fold engaging loose-leaf binder having front and back covers 13, 14, Fig. 1, articulated to a spine 12 is provided internally and along the spine with a metallic channel support plate 52, having a pair of raised marginal guides 57, 58 along which are moved transversely slotted sheet mounting members 61, 63, and periodicals 50, 55 are attached. to the sheet mounting members by fold-engaging clips 34.
Patent GB-1231020-A (GB)
IPC: C05C9/00
Filed: 1968-08-02
Abstract: 1,231,020. Preventing caking of material stored in bulk. JAPAN-GAS CHEMICAL CO. Inc., and MITSUBISHI PETROCHEMICAL CO. Ltd. 2 Aug., 1968 [4 Aug., 1967], No. 37102/68. Heading B8C. Finely divided solid materials, which have a tendency to cake when stored, are prevented from caking by continuously passing a moist gas which does not react with the material through the stored material at a speed of at least 0À005 cm./sec. but below that at which the material becomes fluidized, the gas having, for a portion of the storage period sufficient to prevent caking, a relative humidity not exceeding the " critical humidity " of the material at the storage temperature. " Critical humidity " is defined as the ratio of the water vapour pressure of a saturated aqueous solution of the material at a given temperature to the saturated vapour pressure of water at the same temperature. The material may be urea, ammonium sulphate, ammonium nitrate, potassium chloride, ammonium chloride, melamine, hexamine or a complex fertilizer. The gas may be air, nitrogen or carbon dioxide. The gas may be circulated in a closed cycle through the material. The relative humidity of the gas may exceed the critical humidity of the material for short periods.
Patent GB-1231748-A (GB)
IPC: F16H25/22
Filed: 1969-08-07
Abstract: 1,231,748. Screw-and-nut gearing. NIRONA-WERKE NIER AND EHMER K.G. 7 Aug., 1969 [13 Aug., 1968; 16 July, 1969], No. 39615/69. Heading F2Q. In a recirculating ball or roller type screw and nut, the nut has one or two longitudinal splits, and sets of rollers or balls are guided in separate closed paths each comprising a portion defined jointly by the screw-thread and the nut thread, and a return portion formed in the nut outer surface. In Figs. 1, 2, nut halves 2, 3 having a frusto-conical outer surface 11 are pressed towards the screw 1 by a sleeve 12 having a tapered bore, to take up backlash, a ring 14 screwed into the sleeve 12 being used to draw the sleeve over the nut halves. Slots 7, 8 connect the return passages 6 to their respective thread portions 5. Each set of balls 9 is held in its path by a retaining strip 10. In a modification (Fig. 3, not shown) the nut has a single split, there being one closed path per turn of the nut thread. In Fig. 4, each nut half 16, 17 is held in its own housing 23, 24 by an undercut tongue and slot connection. Again the nut outer surface is slightly conical, screws 27, 28 being used to draw the nut halves axially to take up backlash. Cylindrical rollers, each with its axis at right angles to that of its neighbours, may replace the balls (Figs. 5, 6, not shown). In Fig. 7, tapered rollers 35, 36 are used, such that for rollers engaging the screw-thread flanks 37, 38, their notional apices lie on the screw longitudinal axis. Each retaining strip 46 is split circumferentially along the position engaging in the screw-thread. For a unidirectional load, taper rollers need be provided on only one flank of the screw-thread (Fig. 8, not shown). In Fig. 11, each nut half 51, 52 has an inner surface coaxial with the screw and an outer surface 53, 54 having a centre B, C offset from the screw axis A so that the nut half is retained in its housing 55, 56. Keys 62, 63 prevent rotation of the nut halves. Each retaining strip is in two portions 58, 59.
Patent GB-1233397-A (GB)
IPC: D06N7/06
Filed: 1968-04-22
Abstract: 1,233,397. Laminates. DECORIT-INDUSTRIE-BERATUNG G.m.b.H. 22 April, 1968 [28 Nov., 1967], No. 46625/70. Divided out of 1,233,396. Heading B5N. [Also in Divisions B2 and D2] A chipboard or blockboard has a surface finish in the form of a synthetic resin sheet which is produced by impregnating a non-woven fibre fabric or web, e.g. paper, with a resin having self-cross-linking groups, e.g. self-cross-linking polyacrylic acid ester, epoxy resin, polyester or acrylonitrile-butadiene styrene copolymer and subjecting the impregnated sheet to heat and pressure, said sheet having a resin content of 50-200% by weight with reference to the fibrous material (see Division D2). The resulting sheet is either pressed on to the surface of the chipboard or blockborad under pressure and at an elevated temperature or glued to the surface of the chipboard or blockboard. Several of the resin sheets may be fused together in a calender.
Patent GB-1233811-A (GB)
IPC: F16P3/08
Filed: 1969-02-04
Abstract: 1,233,811. Signalling on trains. WESTINGHOUSE AIR BRAKE CO. 4 Feb., 1969 [6 Feb., 1968], No. 5866/69. Heading B7N. [Also in Divisions Gl and H3] A fail safe circuit for detecting the presence of a signal (e.g. an A.C. signal indicating that a train is moving and thus that the doors must not be opened) comprises a capacitor which is charged in the presence of a signal and thus interrupts a further charging supply, the arrangement being such that in the absence of the signal the capacitor is charged from the further supply, the supply is interrupted and discharge takes place, these operations being repeated thus to produce an output signal. Rotation of a disc 22 when the train moves induces an A.C. signal in winding 18 and this is amplified and rectified by T8, T9 and 36 to charge a four-terminal capacitor 40. When the train stops the output of the rectifier ceases and the capacitor discharges. This switches over a Schmittt trigger T4, T5 allowing T6 to conduct and thus T9 to oscillate. The oscillator is rectified via T2, T3 and 36 to charge the capacitor 40 to cause the Schmitt trigger T4, T5 to interrupt the supply to the oscillator, whereby the capacitor is allowed to discharge again. Cyclic operation in this manner produces an oscillation which is amplified by T7 and T8 and rectified at 70, 73 to produce a signal representing no input signal and no movement. It is explained that failure of any component produces a safe output. The toothed disc 22 could be replaced by an oscillation source (Fig. 2, not shown).
Patent GB-1234290-A (GB)
IPC: B23K9/035
Filed: 1968-10-16
Abstract: 1,234,290. Welding by fusion. KAWASAKI STEEL CORP., and NIPPON KOKAN K.K. 16 Oct., 1968 [16 Oct., 1967; 13 Dec., 1967], No. 49128/68. Heading B3R. Arc welding is performed using a weld-backing member (Fig. 1) comprising a rigid member 2 formed with a channel 3 which accommodates a compressible mineral fibre composite 4 of height greater than the depth of the channel so that when the backing member is applied to the root of a V-groove (Fig. 3) and pressed against the reverse surfaces 5, 5<SP>1</SP> of the bodies to be welded, the composite is compressed, the composite having an initial volumetric specific gravity pi of below 0.5 g./cm.<SP>3</SP>. In instances of misalignment of the bodies (Fig. 2, not shown) or their distortion, the use of such an arrangement is said to prevent " finning " at the underside of the weld. Welding may be by submergedarc, CO 2 -shielded arc or unshielded arc using a consumable electrode, or by manual arc welding using a coated consumable electrode. The V- groove may be filled with iron powder 10 for submerged-arc welding. The rigid member 2 may be of a refractory or metal such as copper. The composite 4 may be such that it will melt in the region of the penetration bead to form slag. In one embodiment, the composite comprises a tubular outer layer (15) (Fig. 7, not shown) of woven glass fibre and fillings (16) of, e.g., cottonlike fibre. In a second embodiment (Fig. 8, not shown), the composite comprises an upper layer (18) of felt of high melting point and a lower layer (19) of felt of low melting point. In a third embodiment (Fig. 9, not shown), the composite comprises an upper layer (21) of woven glass fibre, an intermediate layer (22) of powdred deoxidizer and/or slag former, and a lower layer (23) of felt. The latter is said to be suitable for welding rusty steel plates. In its simplest form, the composite may comprise a single layer of felt or rope-like material. The mineral fibre composite may be composed of SiO 2  as the principal ingredient with, e.g., Al 2 O 1 , MgO, CaO, TiO 2 , CaF 2  or Na 2 O as slag formers, and/or with, e.g., Mn, Fe-Si, Fe-Mn, as deoxidizers. These powdered additives may be baked on the surface of a felt with a suitable binder. The width of the channel 3 in the rigid member 2 is preferably below 20 mm. The bodies to be welded may be mild steel (SM41) with a V-groove of 50 degrees, or steel plates (SM50) by manual arc welding using a low hydrogencoated electrode. Welding may be carried out in the vertical, horizontal or overhead positions. Examples are described.
Patent GB-1251457-A (GB)
IPC: E05B37/12
Filed: 1969-06-13
Abstract: 1,251,457. Locks. R. BELLANGER. 13 June, 1969 [26 June, 1968], No. 30122/69. Heading E2A. A combination lock comprises rotatable discs 4 mounted on a case 1 each disc having peripheral notches 5, one notch 6 being deeper than the others, a slidable stud-carrying member 3 on the case 1 having studs 8, means for setting the deeper notch 6 into the position predetermined by the combination and means for bringing each stud 8 into a deeper notch 6 against the action of a spring 13 whereby withdrawal of a bolt 2 can be effected. Release of the bolt is effected by moving an exterior handle 11 axially and rotating in anti-clockwise whereby a coaxial ratchet wheel 10 contacts a pawl 9 on the stud carrier 3 and thereby raises the stud carrier and releases the bolt. The stud carrier is held in bolt-releasing position by a spring-urged push-rod 15 which engages a notch 14 in the stud carrier. The stud carrier is released from the push rod by turning the handle 11 clockwise when a pivoted lever 17 on the ratchet wheel engages a peg 19 on the push rod and displaces it from the notch 14. The combination is set by moving each exterior knob 20 axially to connect with a disc spindle. The disc is then turned to a zero position by engaging a peg 28 on the disc with a stop 27 on a wheel 26 held stationary by an element 29. The knob 20 is then turned to the setting of the combination by counting the clicks as a pawl 23 engages the teeth of wheel 22 coaxial with the knob. The combination is reset by operating a catch 30 to release the wheel 26 from the element 29 and then by rotating the wheel by the knob 20 to engage the peg 28 on the disc with the stop 27 on the wheel 26 and to rotate the wheel further by an amount determined by the number of clicks as a pawl 31 engages the wheel teeth. The knob is released and the catch reengaged with the element 29 to hold the wheel 26 stationery in its new position. The discs are scrambled when locking the bolt, as the stud carrier descends, pins 7 on the discs displace spring urged rotatable elements 12 on the stud carrier which thereby rotate the discs out of the setting position when the studs 8 disengage the notches 6 and so free the discs for rotation. The lock may be used on an anti-theft device for a vehicle, the closure of the ignition switch being dependent on withdrawal of the bolt. The lock is releasable by rotating an inside handle when the exterior handle is ineffective to release the lock.
Patent GB-1251888-A (GB)
IPC: E05B3/06
Filed: 1969-05-20
Abstract: 1,251,888. Attaching rose plates. S. F. BENGTSSON. 20 May, 1969 [30 May, 1968], No. 25724/69. Heading E2A. A fastening for the operating handle of slidable bolts comprises a plate 10 having integral spaced projections 14, the plate being mounted so that the projections extend within openings and in a casing of the bolt operating mechanism and screws 29 extend from the handle mounting plate 22 through a portion of the door into the projections on the plate 10. The plate has adjacent holes in the projections to provide for mounting plates of different size. The plates 10 and 22 may be made from plastics material.
Patent GB-1252280-A (GB)
IPC: G05D23/30
Filed: 1968-12-06
Abstract: 1,252,280. Automatic temperature control systems. ROBERTSHAW CONTROLS CO. Dec.6, 1968 [Dec. 7, 1967], No. 58175/68. Heading G3R. A temperature control system having an A. C. bridge network including arms 56, 58 setting resistor 50 and NTC thermistor 52 has a controlled rectifier 18 which on bridge unbalance shunts a selected arm, and a switching device e.g. a Shockley diode, transistor or thyristor which shunts at least another arm on redistribution of potential. The selection may be performed by a switch e.g. (68) Fig.2 (not shown), or by diodes 64, 74, 78a, 80a dependent on the direction of temperature deviation. Series or parallel connected heating and/or refrigeration directional control relays 22, 24 are connected between a transformer secondary winding (36) and a bridge. The relay(s) may be shunted by a resistor (98). To alter the temperature differential, one or more detector heaters (92, 92a) Figs. 7A-7D (not shown) may be energized on the firing of rectifier 18. The detector heaters should have preferably a large mass for the prevention of overshoot. In further arrangements, Figs. 9-12 (not shown) the bridge is shunted by one or more appropriately connected thyristors (112). A fan and manual switch (94, 96) Fig. 5 (not shown) may be included in the circuit.
Patent GB-1256629-A (GB)
IPC: B66D1/08
Filed: 1969-02-04
Abstract: 1,256,629. Winches. POCLAIN. 4 Feb., 1969 [7 Feb., 1968], No. 5964/69. Heading B8B. [Also in Division F1] An hydraulic motor 12, Fig. 2, suitable for lifting and lowering a load is controlled by two spool valves 1, 2 having a common operating lever 4, Fig. 1, whereby the spools la, 2a of one or both valves may be displaced from the end position shown i.e. "rest" position to its other end position; spool la in its "rest" position serving to connect a branch line 3a of the pump delivery line 8 and upstream of valve 2 with a line 13 leading to the motor 12 and also with a return line 9 when valve 2 which is a distribution valve is in its "rest" position shows whereby the pump delivery by-passes the motor and is returned to reservoir 11. In operation and to rotate the motor in the load lifting direction lever 4 is moved to position A whilst valve 2 remains in its "rest" position resulting in pump delivery being directed past ball valve 15 into motor supply line 14 whilst motor exhaust line 13 is connected by valve 2 to reservoir 11. To lower the load lever 4 is moved to position B thereby moving valve 2 from "rest" to its other end position whilst valve 1 remains in said other end position which results in pump delivery being directed through valve 2 and motor line 13 which motor line 14 is connected to reservoir 11 through a branch line 16 and a pilot valve 17 which is held open by pump delivery pressure in a branch 18 of line 13. The line 13 has a further branch 7 which when pressurized holds the spool 1a of valve 1 in its other end position. Free lowering of the load under gravity is effected when lever 4 is moved from position B to position C whereon valve 1 is moved to the "rest" position whilst valve 2 remains in its other end position which results in motor lines 13, 14 being subjected to the same pressure and being connected to reservoir through line 16 and ball valve 17. Speed limiting of motor 12 during load lowering with lever 4 in the "B" position is effected by pivoting lever 4 clockwise about an axis 4b thus partly throttling the pressure in valve 2 which delays opening of pilot valve 17.
Patent GB-1256746-A (GB)
IPC: G01N1/00
Filed: 1969-01-21
Abstract: 1,256,746. Transferring measured quantities of liquids. AUTOKEMI A.B. 21 Jan., 1969 [25 Jan., 1968], No. 3306/69. Heading B1X. [Also in Division F1] Apparatus for transferring a measured quantity of a liquid. sample from, e.g. one set of test tubes 1 to another set 2, and supplying thereto a further measured amount of a liquid reagent comprises a spring biassed piston and cylinder 10, 11 operated by a compressed air source 13 under the control of a valve 14 and control means 15. Descent of the piston 10 effects descent of a rod 9 attached thereto, thereby drawing liquid sample into a cannula 6 whereupon the apparatus is moved sideways. Compressed air then effects ascent of the piston 10 causing the rod 9 to expel the sample and to unseat a valve 19 whereafter the control means 15 activates a valve 22 causing communication between liquid reagent pump 21 and conduit 20. A predetermined amount of reagent then passes to the liquid sample via cannula 6. Liquid reagent may pass via conduit 26 arranged coaxially with cannula 6 to raise its exterior. The stroke of the piston 10 and hence the displacement of the rod 9 and the amount of sample withdrawn is determined by a fixed plug 28 and an adjustable screw stop 16. Air vent 18 is provided in the cylinder 11.
Patent GB-1258456-A (GB)
IPC: E04C3/14
Filed: 1969-03-27
Abstract: 1,258,456. Forms of wood; sawing; woodwoodworking &c. MONTAGUE L. MEYER Ltd. 10 March, 1970 [27 March, 1969], No. 16093/69. Headings B5A and B5L. [Also in Divisions E1-E2] The top and bottom surfaces of a structural member are flat and partly bounded by a convex and concave edge respectively. The top surface progressively increases in width to a maximum at its centre whereas the bottom surface progressively decreases in width to a minimum at its centre. As shown, the top and bottom surfaces lie in parallel planes however they may lie in convergent planes. Such members may be cut from a bar of constant cross-section (Fig. 2) whereupon two or four such members may be assembled to form a composite beam (Figs. 3 and 4). The bar may be first divided into two identical wedge-shaped members (Fig. 9) which are subsequently sub-divided to produce four identical members. Members having rectangular end surfaces are also described (Figs. 11, 12) and also members cut from bars having curved side surfaces (Figs. 15, 17, 18). The members may be assembled together to form a mould (Figs. 13, 13A, 13B). A panel comprising a flat sheet of material reinforced by such members is also described (Fig. 14).
Patent GB-1259655-A (GB)
IPC: B65B13/06
Filed: 1969-10-21
Abstract: 1,259,655. Package banding machine. METAVERPA N.V. 21 Oct., 1969 [29 Oct., 1968], No. 51590/69. Heading B8C. In a machine for winding a wire or band around an object the wire is guided through a guide path to form a loop until the free end of the wire engages a stop which causes the wire or band to bow and close a leak opening 11 in a pneumatic system which then actuates a mechanism for gripping the free end of the wire or band. The wire or band is fed through the guide path by rollers which grip the wire or band. As long as the leak opening 11 is open the air flows through a pipe (17, Fig. 3) via a two-way valve (16) and then through pipes (18, 13) to the leak opening 11. However when the leak opening 11 is closed the pressure in the pipe (13) and a steering port (16b) for valve (16) rises and so reverses the valve (16) causing air to flow through a pipe (19) and activate a piston and cylinder assembly controlling the holding means. The valve (16) can be returned to its initial position by admitting pressure to a further steering port (16c).
Patent GB-1265636-A (GB)
IPC: A01J5/017
Filed: 1970-11-17
Abstract: 1,265,636. Milking apparatus. ALFA LAVAL A.B. 17 Nov., 1970 [17 Nov., 1969], No. 54611/70. Heading AIM. Vacuum milking equipment is characterized by having a flow sensing device 10 which, through a valve 16, controls the admittance of air to the claw prior to the claw being isolated from the milkline vacuum system 1 at the cessation of milking. The teats may be removed from the udder by pneumatic piston means 26, which operates a pinch valve 52 through a pneumatic relay 49, 50, 51 to isolate the claw from the milkline vacuum system.
Patent GB-1290704-A (GB)
IPC: A21C3/02
Filed: 1969-10-28
Abstract: 1290704 Laminating dough BAKER PERKINS Ltd 28 Oct 1970 [28 Oct 1969] 52749/69 Heading B5A A dough laminating device has a reciprocating laminating carriage 5, and a movable band conveyer 9 for depositing an additive such as fat and flour dust between a pair of laminations. The speed of the conveyer 9 is adjusted so that as the nosepiece 8 moves from right to left, with the carriage 5, Figs. 2 and 3, the resultant movement of the band over the nose roller will be zero, and the additive can be fed from a hopper 11 and a distributing band 12 and will be retained on the conveyer, but on the return stroke of the carriage, Fig. 4, the additive will be deposited between a double thickness of dough sheet. For placing the additive between each single sheet, a further conveyer 9 can be disposed on the opposite side of the carriage 5.
Patent GB-1295438-A (GB)
IPC: B23B27/14
Filed: 1968-12-06
Abstract: 1295438 Cutting bits HOY CARBIDES Ltd 13 Nov 1969 [6 Dec 1968] 58197/68 Heading B3T A cutting bit 10 for a lathe tool comprises at least one cutting edge 11 which has extending therealong and adjacent thereto a chip groove 12 of constant depth and arcuate cross-section and which tapers in width along its length. The cutter may be of polygonal configuration with cutting edges 12 along each of its polygonal sides and a groove 12 along each edge. A small land 13 may be provided between the cutting edge 11 and the groove 12.
Patent GB-1304007-A (GB)
IPC: B22F3/18
Filed: 1969-08-06
Abstract: 1304007 Rolling metal powders BRITISH IRON & STEEL RESEARCH ASSOCIATION 5 Aug 1970 [6 Aug 1969] 37820/70 Divided out of 1304006 Heading C7D  In a process of rolling metal powder to strip, the powder is fed to the roll nip from a hopper in which a layer of pressurized gas is formed on the inside of the end walls i.e. walls transverse to the rolls, of the hopper to reduce friction between the powder and walls. Metal powder is supplied to the rolls 10, 11 from a fluidized bed in container 17 which feeds the hopper 12. A gas such as air is fed via inlets 26 into the porous central part 22 of the hopper end walls 15, 16. The porous central part 22 may be made of a porous ceramic or sintered metal or an apertured metal sheet and is covered by a gas jacket 25.