baber/WOPTO huggingface dataset:
Patent GB-385704-A (GB)
Title: Tobacco stemming machines
IPC: A24B5/06
Filed: 1931-11-06
Abstract: 385,704. Tobacco-stemming machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Comas Cigarette Machine Co. ; Salem, Virginia, U.S.A.) Nov. 6, 1931, No. 30845. [Class 130.] Stripping of tobacco leaves is effected by a pair of superimposed belts having spaced stripping-members formed with serrated edges which overlap one another to strip the leaf portions from the stems. The leaves are fed by bands 88, 90, being gripped between superposed endless chains 68, so that their butt ends are stripped by the serrated members on superposed endless bands 2, after which they are gripped between superposed endless chains 95 and their remaining portions stripped by a second set of stripping-devices 29, the stripping- devices 2, 29 moving at right-angles to the gripping-devices 68, 95. Before passing to the second set of strippers, the leaves are straightened out by a belt 111. The stripping- devices comprise serrated members 50, Figs. 5 and 6, projecting upwards from baseplates 49 attached at intervals to the endless bands and arranged so that the toothed edges on the upper and lower bands meet and overlap so as to tear the laminµ from the stems. For cleaning the strippers as they separate from each other, they are fitted with plates 51 hinged at 53 and provided with hinged extensions 52, a spring 55 tending to bring the plates 51, 52 into alignment, and a stronger spring 54 tending to hold the plates 51 folded upon the baseplates 49, as shown in Fig. 6, and at the left-hand side of Fig. 5. At the end of the run, however, members 59 attached to the plates 51 engage stationary cams 62 which open out the plates 51, 52 as shown at the right-hand side of Fig. 5, so that the plates 52 wipe across the teeth of the strippers. The sprocket shafts of the upper runs of the stripper bands 2, 29 are carried by inclined bars 18, 41 respectively, which are adjustable by means of screws 19, 43 for varying the distance between the upper and lower bands. Means are also provided for adjusting the tension of the bands and sprocket chains. To ensure that the pairs of chains 68, 95 shall grip the leaf stems, the adjacent means of the chains pass over guide plates 82 and 107 respectively. The stripping- bands and gripper chains are driven by chain and other gearing from an electric motor 113 or other source of power.
Patent GB-812086-A (GB)
Title: Improvements in paints based on portland cement
Inventor: JONES KENNETH WILSON
IPC: C04B24/02
Filed: 1956-10-10
Abstract: A paint composition includes a dry, powdered, free-flowing cement base composition comprising Portland cement powder and water-repellent material which is rendered readily wettable and dispersible by the inclusion of an aliphatic straight or branched chain monohydric alcohol containing 6 to 10 carbon atoms per molecule, or a mixture of such alcohols in the proportion of from 0.05 to 2.0 per cent, preferably 0.1 to 1.0 per cent, by weight of the solid constituents of the powder.  Commercial nixtures of alcohols, to which n-hexanol may be added, can be used, and relatively small amounts of hygroscopic salts, e.g. calcium and sodium chloride, alkali resistant pigments, e.g. iron and chromium oxides together with titanium dioxide, and whiting, hydrated lime, and sand may be included.  The water repellent material may be a fatty acid soap, e.g. calcium or aluminium stearate or a silicone, fatty acid ester or long chain fatty acid.  In a modification the alcohol may be in the form of an ester, e.g. octyl palmitate or nonyl stearate, capable of being hydrolysed by the basic materials in the cement.ALSO:Dry, powdered, free-flowing cement base compositions comprising Portland cement powder and water-repellent material are rendered readily wettable and dispersible by the inclusion of an aliphatic straight or branched chain monohydric alcohol containing 6 to 10 carbon atoms per molecule or a mixture of such alcohols, in the proportion of from 0,05 to 2,0 per cent., preferably 0,1 to 1,0 per cent., by weight of the solid constituents of the powder.  Commercial mixtures of alcohol, to which n-hexanol may be added, can be used and relatively small amounts of hygroscopic salts, e.g. calcium and sodium chloride, alkali resistant pigments, e.g. iron and chromium oxides together with titanium dioxide, and whiting, hydrated lime, and sand may be included. The water repellent material may be a fatty acid soap, e.g. calcium or aluminium stearate or a silicone, fatty acid ester or long chain fatty acid.  In a modification the alcohol may be in the form of an ester, e.g. octyl palmitate or monyl stearate capable of being hydrolysed by the basic materials in the cement.
Patent GB-507468-A (GB)
Title: New or improved means of raising and lowering a sun blind
IPC: E04F10/06
Filed: 1937-11-15
Abstract: 507,468. Roller sun blinds. JONES, A. L., and SMITH, D. K. Nov. 15, 1937, No. 30973/36. [Class 20 (iii)] A sun-blind 1 is provided with side arms 4, 4<1>, pivoted for movement in a plane approximately parallel to the blind, which'may be rotated by gearing, operated by a handle 32, into a downwardly inclined position to reduce the tension of the winding spring in the roller 2 and thus permit the blind to descend under gravity, and into an upwardly inclined position to increase the tension of the spring to cause winding-up of the-blind. In the construction shown in Fig. 3, the blind roller 2 is mounted on bearing members 26, 36, free to rotate at the ends of a fixed screwed shaft 37. The member 26 is provided with teeth 25 which engage a pinion of the wheel train operated by the handle 32, and the member 36 engages a flange at the end of the roller by means of ratchet teeth 34. A helical spring 41 encircles the shaft 37 and is secured at one end to the member 36 and at the other end to a nut 39, mounted on the shaft 37, and which engages with a second nut 40 adapted to rotate with the member 26, but free to move longitudinally relative thereto. The tension of the spring may be varied by loosening a nut 42 on the shaft and rotating the member 36 relatively to the flange at the end of the roller. During the movement of the blind structure into the downwardly inclined position, the nut 40 is disengaged from the nut 39 and the-roller 2 freed from the spring 41, thus allowing the blind to unwind. The rotation of the member 36 during the unwinding of the blind tends to increase the tension of the spring 41, the effect of which is to move the nut 39 towards the right until it re-engages with the nut 40, when further movement is prevented, and the blind is kept taut by the spring. When the structure is rotated into the upwardly inclined position, the motion of the wheel 25 causes the nuts 39, 40, to move to the left, thus increasing the tension of the spring 41 which aids the winding of the blind onto the roller. A modification is described in which the side arms of the blind are in the form of lazy-tong members, the structure being rotated by hydraulically operated means.
Patent GB-520729-A (GB)
Title: Improvements in machinery for producing corrugated or ribbed sheets
IPC: B21D13/02
Filed: 1938-10-26
Abstract: 520,729. Corrugating. DANGERFIELD, H., and LLOYD, H. P. Oct. 26, 1938, No. 30985. Addition to 426,495. [Class 83 (iv)] In a machine for producing corrugated or ribbed sheets of the kind having upper and lower reciprocating dies through which the sheet is fed step by step by an endless conveyer provided with projections which take up their driving thrust in a new position after each stroke of the dies, as described in the parent Specification, the intermittently operated drawing-off rolls are respectively provided with longitudinal ribs and co-operating recesses so that metal or like tiling sheets having spaced ribs may be produced. The sheet is pushed forward by projections 11 on a chain conveyer 10 intermittently operated from the shaft 14 as described in the parent Specification, and the dies 12, 13 are respectively provided with two or more spaced ribs 12a and recesses 13a. The drawing-off rolls 20, 21 are respectively provided with ribs 23 and co-operating recesses 26 to engage the ribs in the sheet. The upper roll is spring-mounted and the lower roll is inter- -mittently driven as described in the parent Specification. In order to prevent over-running of the rolls 20, 21, the shaft of the roll 21 is provided with a ratched wheel 30 which is engaged by a pawl 31 operated through a link 33 and lever 35 from a cam 37 on or driven by the shaft 14 so as to free the roll shaft just before the driving mechanism therefor comes into operation. One or more of the brackets carrying the operative parts are mounted on the frame by shear pins which shear if the sheet fouls any part of the machine and thus prevent damage to the machine.
Patent GB-679567-A (GB)
Title: Improvements in or relating to fungi and bacteria resistant polyvinyl chloride compositions
IPC: C08K5/00
Filed: 1949-12-02
Abstract: A composition having improved resistance to attack by micro-organisms comprises 100 parts by weight of a polymerized vinyl resin containing predominantly combined vinyl chloride, 0 to 100 parts by weight of a plasticizer, 0.1 to 2.5 parts by weight of copper 8-quinolinolate, and 5 to 50, preferably 10 to 30 parts by weight of an N-alkyl benzenesulphonamide or an N-alkyl toluenesulphonamide, wherein the alkyl substituent contains at least 1 but not more than 8 carbon atoms, preferred sulphonamides being N-ethyl para-toluenesulphonamide, N-isopropyl benzenesulphonamide and N-isopropyl para-toluenesulphonamide.  The vinyl resin may be polyvinyl chloride or a copolymer containing 95 per cent to 80 per cent by weight of combined vinyl chloride and 5 to 20 per cent by weight of combined vinyl acetate, vinyl fluoride, vinylidene chloride, diethyl maleate or methyl methacrylate.  The plasticizer may be dioctyl, dibutyl or divinyl phthalate, tricresyl or trioctyl phosphate, dibutyl sebacate, dioctyl adipate, butyl phthalyl butyl glycolate or condensation products of polycarboxylic acids and polyhydric alcohols.  The composition may also contain carbon black, zinc oxide, clay or wood flour, and may be formed into films or sheets.
Patent GB-441648-A (GB)
Title: Apparatus for cutting strip or the like material
IPC: B26D1/00
Filed: 1934-10-30
Abstract: 441,648. Cutting strip material. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, Euston Road, London, and WILLSHAW, H., and GARRISON, W. J., c /o Dunlop Rubber Co., Ltd., Fort Dunlop, Birmingham. Oct. 30, 1934, No. 31072. [Class 31 (i)] [See also Group V] In a machine for cutting into lengths strip material, e.g. extruded tyre tread material, by a rotary traversing cutter in which the cutter traversing and rotating means are geared together, the cutter is traversed by screw-andnut mechanism. In one form, Fig. 3, a motor 11 fixed to a cutter carriage 9 drives through gears 10, 10<a> the cutter shaft 7 which carries a skew gear 12 meshing with a skew gear 12<a> on a nut member 13 which co-operates with a fixed screw 14. The carriage 9 slides on a rod 16 and is preferably inclined so that the cutter 5 bevels the ends of the strip. The carriage 9 co-operates with switches to stop it at the end of each traverse and to control the direction of drive of the motor 11. In another form, Fig. 4, the motor 11 drives the nut member 13 through bevel gears 18, 18a and the latter gear 18<a> co-operates with a further gear 18<b> to rotate the cutter 5. In a modification, Fig. 5 (not shown), the motor drives the screw 14 and the carriage 9 forms the nut ; the gear 18<a> is slidably keyed to the screw and co-operates with the gear 18b as in Fig. 4. In another form, Fig. 6, the motor 11 drives a gear 25 which through a gear 25<a> rotates the cutter and through a gear 25b, skew gears 26, 26<a>, nut 13 and screw 14 traverses the cutter. In the forms shown in Figs. 3, 4 and 6, the motor may be separate from the carriage and connected to the driving shaft by a flexible or articulated shaft.
Patent GB-1077330-A (GB)
Title: Retro-reflective fabric flaw detector
IPC: D03J1/00
Filed: 1965-07-21
Abstract: 1,077,330. Photo-electric flaw detection in fabrics. APPALACHIAN ELECTRONIC INSTRUMENTS Inc. July 21, 1965 [Dec.11, 1964], No.31117/65. Heading G1A. Runs and holes in a knotted fabric are detected by arranging a lamp and photo-resistor on one side of the fabric and a strip of retro-reflective material on the other, such a material on receiving light through a hole in the fabric reflects it back along the incident path to be received by the photoresistor. Fig. 2 shows a scanning head containing the lamp 46, photo-resistor 43 and a half-silvered mirror 37 which transmits light on to the fabric but deflects light returning from the retro-reflective material on to the photo-resistor. The head is suspended by legs 11 and is moved back and forth across the width of a moving strip of fabric; a cylindrical lens 31 produces a line image in the direction of movement of the fabric. In another arrangement Fig. 5 (not shown), several stationary heads are positioned spaced across the width of the fabric and have cylindrical lenses arranged to produce line images which are in a direction perpendicular to the fabric movement and whose ends overlap one another. In the case of circular knotting machines producing a tubular knot fabric, which is rotated after leaving the needles as well as moving axially, a stationary scanning head may be positioned inside the tube Fig. 8 (not shown), or outside Fig. 6 (not shown). After the tube has been flattened to form a double sheet a series of stationary scanning heads may be placed on both sides of the sheet with retro-reflective material between the two fabric layers Fig.13 (not shown). For all arrangements the electrical circuitry Fig. 7 (not shown), will only produce an output to shut down the knotting machine of the signal from any photo-resistor is above a predetermined level.
Patent GB-191900-A (GB)
Title: Improvements in laminated springs
IPC: F16F1/18
Filed: 1921-11-22
Abstract: 191,900. Remington, A. A. Nov. 22, 1921. Laminar springs.-In a laminated spring comprising auxiliary or " above " blades, these blades a<4>, a', Fig. 4, are connected at their ends with corresponding ordinary blades c<3>, c<4> by pivoted links or shackles b. The ends of the blades are bent over to form eves to receive the shackles which also serve to keep the blades in alignment. As shown in Fig. 6, the end of the auxiliary blade a<6> has a curvature similar to that of the main spring.
Patent GB-600883-A (GB)
Title: Improvements in or relating to grass cutting shears
IPC: A01G3/06
Filed: 1945-11-20
Abstract: 600,883. Shears. JARDINE, W. H. Nov. 20, 1945, No. 31141. Drawings to Specification. [Class 30] [Also in Group XXV] Grass-cutting shears of the kind comprising sheet-metal blades connected by a ballbearing pivot (see Group XXV) have a stale and blade-operating mechanism identical with those described in Specification 600,900.
Patent GB-391875-A (GB)
Title: Improvements in or relating to machines for roughening or abrading leather or like material
IPC: C14B1/48
Filed: 1931-11-11
Abstract: 391,875. Rotary filing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., HEATHER, C. H., and BAGSHAW, C. M., Union Works, Belgrave Road, Leicester. Nov. 11, 1931, No. 31223. [Class 83 (iii).] A machine for roughening pieces of leather or like sheet material comprises a workfeeding device and a roughening roll which co-operate through a bite in a supporting table to continuously rough and feed the work. A machine of the type having end frame members secured to cross-members at their upper and lower ends and carrying a horizontal worktable 1 supports in vertically adjustable bearing blocks (not shown) a horizontal feeding roll 3 which is of steel covered with thick rubber ; additional vertical adjustment of this roll is provided by eccentric end bearings operable by a lever 11 provided with a latching device 13, the roll being driven by gearing from a main pulley shaft. The table, which can be adjusted vertically by wedge means and to the right or left by threaded rods and hand-nuts, has a bite through which the feed roll and roughening roll can co-operate. The roughening roll is built up from wooden sleeves 17 secured to a steel shaft 15, the former having mounted spirally thereon spiked wire strip 23 over half its width and strip with projecting V-shaped blades over the remaining half. Specification 17548/15, [Class 31 (i), Cutting and severing machines &c.], is referred to.
Patent GB-1480054-A (GB)
Title: Control circuits for electrically driven vehicles
IPC: B60L3/00
Filed: 1973-06-30
Abstract: 1480054 Control of D.C. motors LUCAS INDUSTRIES Ltd 11 June 1974 [30 June 1973 (2)] 31306/73 and 31307/73 Heading H2J The motor control system described with reference to Figs. 1 to 4 of Specification 1,480,064 is provided with means to switch on the power supply to the control circuit for the forward, reverse and brake contactor devices and the accelerator and brake potentiometers, when forward or reverse drive is selected, and to switch off the power supply after a time delay following return of the selector switch to its OFF position. As shown in Fig. 5, movement of the switch 35 to its forward drive (resistors 36, 64 connected) or its reverse drive (resistors 37, 65 connected) position causes transistors 38, 44 to switch on, capacitor 41 to charge and winding 33 to be energized, the latter closing contacts 33a to connect battery 40 to the contactor devices F, B, R and the accelerator and brake potentiometers 70, 71. The control circuit includes contacts 52 which open when the vehicle speed exceeds a predetermined low value, contacts 53 which close when the accelerator pedal is released, contacts 54, 55 respectively closed by pression of the accelerator and brake pedals, contacts 62 which close when the accelerator pedal is depressed and before contacts 53 open (the latter feature also being possessed by the contacts 54), contacts 63 which close when the motor current is above a predtermined value, contacts 73, 76 respectively closed by depression of the brake and accelerator pedals, and auxiliary self-hold contacts F2, B2, R2 of the devices F, B, R. With switch 35 in its forward position, transistor 48 is turned on and thyristor 49 is fired through contacts 52, 53, so that depression of the accelerator pedal closes contacts 54 to energize device F. Thyristor 49 remains on after switches 52, 53 open and the subsequent increase of the command signal from potentiometer 70 to unit 26 will close contacts 63 if the current exceeds the predetermined value, thereby closing the self-hold circuit F2, 63. If switch 35 is moved to its OFF position transistor 38 immediately turns off, but transistor 44 is held on for a predetermined time corresponding to the discharge of capacitor 41, after which contacts 33a open. This time is selected so that the motor current falls below the predetermined value before contacts 33a open, since movement of switch 35 to its OFF position also turns off a transistor 66 to turn on transistor 68 and so remove the signal from potentiometer 70 to unit 26. Hence device F will be de-energized before contacts 33a open, either by opening of contacts 63 or members 48, 49. Similar operations occur when the brake pedal is depressed to energize device B or when the switch 35 is moved to its reverse position to energize device R, the latter action involving members 58, 59, 62. The time delay after movement of switch 35 to its OFF position may be provided by using a slow-acting relay in place of relay 33, 33a, and the switch 35 may be replaced by the combination of an on/off and a selector switch.
Patent GB-836475-A (GB)
Title: Low stress electrodeposited rhodium
IPC: C25D3/50
Filed: 1957-10-07
Abstract: 836,475. Electrode materials. SEL-REX CORPORATION. Oct. 7, 1957 [June 5, 1957], No. 31318/57. Class 39(1). [Also in Group XXXVI] An electron tube grid of low secondary emission is formed from tungsten or molybdenum were electroplated with rhodium. Specification 835,830 is referred to.
Patent GB-738950-A (GB)
Title: Hydraulic power transmission
IPC: F16H47/06
Filed: 1953-11-12
Abstract: 738,950. Hydro-mechanical gearing. AKT.- GES. FUR UNTERNEHMUNGEN DER EISEN-UND STAHLINDUSTRIE. Nov. 12, 1953 [Nov. 14, 1952], No. 31377/53. Class 80 (2). A hydro-mechanical gear system for motor vehicles comprises a hydraulic torqueconverter 4, 5, 6 permanently connected between driving and driven shafts 1, 8, and, in parallel therewith, a countershaft reduction gear 15, 16, 23, 24 which is brought into action, particularly for obtaining combined engine and hydraulic braking, by a friction clutch 18. A directdrive clutch 9, 10, 11 may also be provided between the shafts 1, 8 and a change-speed or reversing gear may be arranged beyond the shaft 8.
Patent GB-746265-A (GB)
Title: Improvements in or relating to perambulators and the like
Inventor: RASSIER CECIL ARTHUR
IPC: B62B7/08
Filed: 1954-10-30
Abstract: 746,265. Folding perambulators. SEBEL & CO., Ltd., D. March 31, 1955 [Oct. 30, 1954], No. 31425/54. Class 108 (1). The main links 13, 14 of a push-chair are pivoted together at 15 and to a handle member 2 and a handle strut 17 respectively. The lower end of the link 13 is pivoted at 39 to a rear axle support strut 26 and the lower end of the link 14 is pivoted at 23 to a body support strut 21, rear axle support link 24 and front axle support strut 33. The front axle support link 30 is pivoted at 34 to the strut 33 and at 31 to the strut 26. When erected the link 26 lies alongside the link 24 and the pin 39 engages the stop 29. The pin 39 engages a-slot in the strut 26 to allow disengagement from the stop 29 when the locking rings 36 are lifted and the handle 2 is depressed.
Patent GB-881393-A (GB)
Title: Improvements in or relating to self-winding watches
IPC: G04B5/08
Filed: 1959-09-16
Abstract: 881,393. Watches. GIGANDET, C. Sept. 16, 1959 [Sept. 23, 1958], No. 31546/59. Class 139. In a self-winding watch the rotor 3, Fig. 1, which is of annular form and surrounds the movement 1, is pivoted at 5 to the lug 4 projecting from the movement frame. Two pawls 8, 9 are pivoted to the rotor at 10, 11 and, as the rotor swings about its pivot in either direction, one or other of the pawls 10, 11 drives a ratchet 7 connected by a gear 6 to the barrel 2. In a modification, Fig. 3 (not shown). the barrel ratchet is driven directly by the pawls the pivots of which are located radially inwardly of the rotor pivot which comprises a pin carried by the rotor and having its conical ends in ball bearings located respectively in a lug projecting from the movement frame and in a bridge mounted thereon.