baber/WOPTO huggingface dataset:
Patent GB-652713-A (GB)
Title: Improvements in band-sawing machines
IPC: B27B13/10
Filed: 1948-07-26
Abstract: 652,713. Band saws. GRANT, H. July 26, 1948, No. 19882. [Class 145(ii)] A band sawing machine has the saw guided to or from the sawing station by an arcuate series of rollers. As shown a band 6 is supported at one end by a pair of driving pulleys 19, which are driven from an electric motor (not shown) by belts 21, and at the other end by a plurality of rollers 5. The rollers 5 are journalled upon horizontal axles 7 attached to a semi-circular carrier 8, which carrier is vertically pivoted by pins 10 to supports 9. Hydraulic cylinders 13 have sleeves 14, to which are secured the supports 9, the sieeves being connected to the cylinder plungers 15. Thus, when hydraulic pressure is put on the plunger, the support and rollers move to tension the saw. The carrier 8 is moved about the pins 10, to take up the skewed path adopted by the saw, by an offset hydraulic cylinder 17 having a plunger 18. A work table 26, having free mounted rollers 29, is pivotally attached to a central head 31 by end screws 30. The head 31 is integral with a plunger of a hydraulic cylinder 34 so that the work can be raised or lowered by applying pressure to the cylinder. The material to be sawn is held down by a clamp which comprises a holder 36, having rollers 38, the holder being angularly adjustable about a set screw 37 to correspond with work table 26. The slide frame 35 is carried by a screw-threaded sleeve 39 which passes through a screw-threaded sleeve 40 which is screwed through a top member 43 of the machine. The clamp may be raised or lowered by rotating the sleeve 40 by the handle 44, and the holder 36 being kept down by a spring 41, the tension of which may be altered by a handle 42. The Provisional Specification also describes a machine having the band saw guided around an arcuate series of rollers at both ends, one or more rollers being driven.
Patent GB-728673-A (GB)
Title: Improvements in and relating to gripping devices for the wheels of tractors and other vehicles
IPC: B60C27/04
Filed: 1952-08-07
Abstract: 728,673. Vehicle wheels. COLIN, L. Aug. 7, 1952 [Aug. 14, 1951], No. 19909/52. Class 144 (1). A ground-gripping device for tractor and like wheels comprises a fixed rim of inverted channelsection on which is seated a (similar) circumferentially-movable rim containing lubricant and the mechanism for controlling its movements whereby ground-engaging strakes are moved into and out of operative position. As shown in Figs. 1 and 2, the latter being enlarged, a tyred wheel R has a strake-carrying rim arrangement resiliently supported from a drum 3 bolted to the disc of the wheel R, the mounting which allows for radial and circumferential resiliency comprising rubber blocks 7 clamped to the drum 3 through the intermediary of L-brackets 6 between the others arms of which are placed rubber blocks 5 bearing on a medial web of a T-member 4 welded to the flanges of an inwardly facing channel-section rim 1. Around this rim 1 is adjustably movable an inwardly facing channel section rim 2 on which the strakes 8 are pivotally mounted in a bellcrank manner with the ends of the inner arms constrained to move in rubber-lined slots 12 in the flanges of the inner channel section rim 1 when the outer channel section rim 2 is moved by the admission of pressure oil to a cylinder 13 pivotally mounted in a yoke 15 on the web of the inner rim 1 with its piston 16 connected to the outer rim 2. The pressure oil is admitted through a connecting block 20 including a non- return valve and a throttled drain port 22. After adjustment of the strakes the outer rim 2 is locked by a cam-retractable spring loaded pin 25 engaging an appropriate aperture in a strip 28 secured on the inside of the web of the rim 2. Alternative arrangements for adjusting the outer rim 2 comprise. Fig. 5, a rack 35 on the inner rim 1 engaged by a worm 36 carried by the outer rim 2 and actuated from the outside by a worm 39 meshing with worm-wheel 38 on the shaft 37, and, Fig. 9, two sprockets on a shaft 47 mounted on the inner rim 1 and driven by an externally actuated gear-wheel 51, the sprockets having oppositely acting chains 53, 54 fastened to the outer rim 2.
Patent GB-1480155-A (GB)
Title: Closure for a container
IPC: B65D51/14
Filed: 1975-05-12
Abstract: 1480155 Container closures SCHMALBACHLUBECA GmbH 12 May 1975 [11 May 1974 5 Feb 1975] 19915/75 Heading B8T A container closure comprises a flat, preferably metal or plastics, closure member 5 and a preferably plastics cap-like fitment 4 which has a skirt 4b on whose internal face 4c there are T-shaped beads 1. Sealing material 6 is applied within the channel formed by an annular peripheral portion 5a, a bent part 14 and a shoulder 5b of the closure member 5. The fitment 4 also comprises an annular panel 4a and a tab member, preferably a ring 8, is attached to the fitment 4 either by a single band 7 or by several bridging portions in addition to the band 7 to provide a taper-indicating feature. As seen in Fig. 6 the beads serve to engage the rim of a container neck. The internal edges of the stems 2a of the beads 1 extend substantially parallel to the axis of the closure and diminish in radial extent towards the free edge of the skirt 4b.
Patent GB-459795-A (GB)
Title: Improvements in or relating to mechanical stoking installations
IPC: F23K3/14
Filed: 1935-07-12
Abstract: 459,795. Screw-conveyers. RIJSWIJK, J. N. VAN, 129, Groot Hertoginnelaan, The Hague. July 12, 1935, No. 19924. Convention date, Aug. 16, 1934. [Class 78 (i)] In an underfeed stoker installation, the fuel supply 3, the furnace 4 and an electric motor 15 driving a fuel conveyer screw are in substantial alignment and the furnace is located between the fuel supply and the motor. The conveyer screw is mounted in a tube 2 and comprises a part 7 for moving fuel from the source of supply to the firepot 6 of the furnace and a portion 8 of smaller diameter and with a reverse thread to ensure that fuel dust does not penetrate to the driving mechanism. A blade 10 between the portions 7 and 8 removes fuel from beneath the conveyer shaft. The firepot is surrounded by an air chamber 11 supplied from a fan 5 driven by the motor 15 and both the firepot and the furnace chamber 4 are surrounded by water jackets 16, 20 adapted to be connected into the circulation system of an external boiler.
Patent GB-695521-A (GB)
Title: Process for the preparation of rubber and plastic materials of cellular structure
IPC: C08J9/06
Filed: 1951-08-23
Abstract: Cellular plastic materials are obtained by heating an organic plastic material in the presence of a mixture of, or the salt of oxalic acid and a compound which contains in its molecule no sulphur and at least one amidine group.  Specified amidine compounds are dicyandiamide, melamine, and 1-amidino-guanazole. The plastic materials may be polyvinyl chloride, copolymers of vinyl chloride with methacrylates, polystyrene or polyisobutylene, phenol-formaldehyde and urea-formaldehyde condensation products. mixtures of organic polyisocyanates with polyesters containing hydroxyl groups, and polymers and copolymers of butadiene. Additional blowing agents such as nitrosourethanes or nitrosocarbamides may also be added.  In examples, polyvinyl chloride plasticized with tricresyl phosphate is treated with: example (1), dicyandiamide oxalate; (2) equimolecular proportions of oxalic acid and dicyandiamide; (3) oxalic acid and 1-amidino guanazole; (8) dicyandiamide oxalate and tetramethylene - dinitroso - dimethylurethane; (9) and (10) dicyandiamide, oxalic acid and tetramethylene - dinitroso dimethylurethane.  (5) Phenolformaldehyde resin is treated with oxalate of dicyandiamide. (6) Polystyrene is treated with oxalate of dicyandiamide; and (7) the polyester obtained from trimethylol propane, phthalic acid, and adipic acid was treated with oxalate of dicyandiamide and the reaction modified by the addition of toluylenediisocyanate.ALSO:Cellular materials are obtained by heating a natural or synthetic rubber or chlorinated rubber in the presence of a mixture of, or the salt of, oxalic acid and a compound which contains in its molecule no sulphur and at least one amidine group. Specified amidine compounds are dicyandiamide, melamine and 1-amidinoguanazole.  Additional blowing agents such as nitrosourethanes or nitrosocarbamides may also be added.  In Example (4) a mixture of pale rubber crepe, zinc oxide, sulphur, dibenzothiazyldisulphide, whiting, mineral oil and stearic acid is treated with oxalate of dicyandiamide.
Patent GB-637535-A (GB)
Title: Mixing apparatus
IPC: B28C7/06
Filed: 1947-07-24
Abstract: 637,535. Weighing-apparatus fitted to concrete mixers. JOHNSON CO., C. S. July 24, 1947, No. 19945. Convention date, Feb. 6, 1939. [Class 143] [Also in Groups II and XXX] A weighing mechanism for weighing batches of water for concrete mixers comprises a batcher tank 50 into which water flows and a lever system connected to a balancing apparatus. Links 52 are pivoted centrally at 53 to fixed points on the hopper of the mixers, the inner ends supporting the batcher tank, and the outer ends being attached to beams 51. As the batcher tank fills, the inner ends of the links 52 drop, and the beams 51 are raised together with their interconnecting levers 55. By means of levers 58, 59, 60, 61, the levers 55 are connected to a scale beam 57. The balancing mechanism associated with the beam 57 is of known type. Any one of a series of weighing beams 62-65 may be placed in operative relation with the scale beam 57 by releasing its associated beam lifter 66. When the water batch is complete the scale beam automatically terminates the water flow.
Patent GB-941739-A (GB)
Title: Process of polymerising butadiene
IPC: C08F136/06
Filed: 1961-06-02
Abstract: 941,739. Polybutadiene. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. June 2, 1961 [June 7, 1960], No. 19965/61. Heading C3P. Polybutadiene which may have a molecular weight between 100,000 and 200,000 and a cis-1,4 content higher than 99%, is obtained by polymerizing butadiene in the presence of catalysts obtainable from halogenated organic compounds of metals belonging to the 2nd or 3rd group of the MendelÚeff Periodic Table and a cobalt compound, and regulating the average molecular weight of the polymer by varying the concentration of the monomer in the polymerization medium. The organic metal compound may be Al(C 2 H 5 ) 2 Cl, Al(C 2 H 5 )Cl 2 , Al(C 6 H 5 ) 2 Cl, or an alkyl or aryl-zinc monohalide, or an alkyl- or aryl magnesium halide. The cobalt compound may be cobalt diacetyl acetonate, or a cobalt chloride-pyridine complex. The concentration of the butadiene is generally maintained constant by regulating the addition of monomer in accordance with the polymerization rate under the conditions used . The polymerization is preferably effected in the presence of one or more hydrocarbon solvents and at a temperature of +40‹ to -60‹C.
Patent GB-261313-A (GB)
Title: Improvements in turn-over guide plate for applying concealed fastener tape to garment edges by sewing machine operations
IPC: D05B3/18
Filed: 1926-08-13
Abstract: 261,313. Roseman, L. Aug. 13, 1926. Folding-devices. - A folding-guide, for use in attaching to garments &c. fastenercarrying tape of the kind having a covering strip, is provided with a channel for the tape and a helicoidal guide surface by which the previously turnedback covering strip is folded over upon the garment edge. The tape T which has a cover-strip C is guided in a channel in a plate 14 mounted, so as to admit of lateral adjustment, ir. the bed-plate 11. The strip C is raised from its turned-down position by the end 26 of a tapered block 27 which forms part of an adjustable guide-member 24. This block raises the strip C till it reaches the position shown in Fig. 2, from which it passes on to be controlled by a helicoidal surface 30 formed in a block 28 and terminating in a horizontal portion 31 by which it is turned down upon the garment G, supported by a work-plate 21. The tape is held down as it passes to the stitching point 34 by a spring 38 secured to an arm 39 adjustably clamped in a block 40 so that its pressure may be varied.
Patent GB-270924-A (GB)
Title: Improvements in heavy liquid fuel vaporiser for internal combustion or explosion engines
IPC: F02M21/10
Filed: 1926-08-13
Abstract: 270,924. David, L. M. Aug. 13, 1926. Vaporizers, external.-A vaporizer for heavy fuels comprises three superposed compartments surrounded by exhaust gases, the mixture passing from the carburettor to a chamber 1 through tubes 3 to a chamber 15<1>, and through a, perforated partition 5 to a chamber 6 and to a restricted outlet 7. The vaporizer is made in three parts 1<a>, 2, 4 and is connected to the carburettor by studs 1<b>. The exhaust outlet 9 has a jacket 12 in which, the liquid fuel is heated to about 60‹ C. before entering the carburettor. The vaporizer may be heated at starting through an opening 15.
Patent GB-372619-A (GB)
Title: Improvements in shackle
IPC: E05B75/00
Filed: 1931-07-13
Abstract: 372,619. Handcuff &c. fastenings. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Peerless Handcuff Co. ; 91, Dwight Street, Springfield, Massachusetts, U.S.A.) July 13, 1931, No. 20057. [Class 44.] The spring-pressed pawl 8 of a ratchet-locked handcuff is itself locked when a bolt 13 is moved to the right from the position shown. To unlock, a key is inserted over a pin 18, turned clockwise to bear upon a shoulder 20 of the bolt 13 and then anticlockwise to bring it against a lip 19 on the pawl and so to withdraw the pawl. If a picking instrument is inserted in the gap between the ratchet 7 and the lock casing 4, it passes into a slot 21, Fig. 5, and cannot depress the pawl. The ledge 11 co-operating with a shoulder on the latch limits the outward movement of the latter when the arm 5 is not in position, and serves to prevent the entrance of dirt into the lock.
Patent GB-1330582-A (GB)
Title: Fibre-reacrive copper-complex monoazo dyestuffs
IPC: C09B62/095
Filed: 1971-04-19
Abstract: 1330582 Fibre reactive dyes CIBA-GEIGY AG 19 April 1971 [21 Jan 1970 9 Dec 1970] 20122/71 Heading C4P The invention comprises reactive dyes of formula wherein Z is a fibre-reactive group; U is a halogen atom; X is H, NO 2 , SO 3 H, acylamino or halogen; are of Y 1  one Y 2  is H and the other a sulphonic acid group; R is an aliphatic or aromatic carboxylic radical with not more than 10 carbon atoms which is optionally substituted by one or more halogen atoms and/or alkyl groups and/or water solubilizing groups. Z is preferably a 5- or 6-membered heterocyclic reactive radical with at least 2 hetero-atoms and bonded to R via an amino group. The dyes may be prepared by reacting an azo compound of formula with an amino H 2 N-R 2  or an amine H 2 N-R-V where V is an amino group or a replaceable atom or a group which can be condensed with a compound containing a fibre reactive radical Z. Alternatively an azo compound of formula may be reacted with a 1,3,5-triazine derivative of formula or the corresponding unmetallized dye may be treated with a copper-donating agent by known methods. The dyes may be used for dyeing and printing diverse materials, e.g. wool, silk, leather, polyamide fibres or cellulose-containing fibres, e.g. cotton, on which they give blue shades. Reference has been directed by the Comptroller to Specification 1,019,771.
Patent GB-627458-A (GB)
Title: Improvements in mining machines
IPC: E21C29/02
Filed: 1947-07-26
Abstract: 627,458. Mining-machines. MAVOR & COULSON, Ltd., and GULLICK, E. D. M. July 26, 1947, Nos. 20190 and 23626. [Class 68(i)] In a machine, for planing mineral from a seam, of the type comprising two inter-connected relatively movable members 7, 8, one or both of which carry wedge-heads 30, movement of the members is regulated by a number of single-acting hydraulic piston assemblies 11, 12 ; 13, 14 ; 16, 17 ; which are contracted by an auxiliary hydraulic system 25, 26 and a wire cable 38 which connects the pistons 14, 17 of the two members and passes around a loop-forming pulley 36 which is mounted on the ram 26. Cutting being to the left and commencing with the ram 12 contracted, the ram 26 expanded to form a loop 41 in the wire 38, and the ram 14 expanded to engage the roof, so anchoring the body 8, the sequence of operations is to expand the ram 12 with a resultant forward advance of the body 7, the cylinder 25 being simultaneously exhausted so that movement of the body 7 forces the ram 26 back into the cylinder 25. Next, the ram 17 is expanded to engage the roof and anchor the body 7, ram 14 contracted to free the body 8 and ram 26 expanded so that a loop 41 is formed as the body 8 is drawn forward for the next cutting stroke. By a suitable arrangement of the valve control system 19 both rams may be retracted or expanded to a roof-engaging position simultaneously. Liquid flow between the two body members is through a telescopic tube 28 mounted in the piston and cylinder 11, 12. In a modified form, the cable is only attached to one of the roof-engaging rams, the other ram being retracted by another single-acting jack or the cable may be secured to the two body members only and not to the roof-engaging jacks.
Patent GB-738168-A (GB)
Title: Improvements in or relating to thermo-electric converters
IPC: H01L35/00
Filed: 1952-08-12
Abstract: 738,168. Thermo-electric batteries; power measuring. SANGAMO WESTON, Ltd. (Sangamo Co., Ltd.). Aug. 12, 1952, No. 20284/52. Classes 37 and 53. A thermopile comprises a ribbon made up of lengths of different metals, metal ribbons forming resistance heaters lying over the junctions of the thermopile ribbon which is wound on a metal bar forming a thermal sink. The thermopile ribbon may be made by brazing together at their edges a number of bars 35 of different metals as shown in Fig. 8, rolling the compound bar to the required thickness an then cutting it into strips 36. The strips are wound in one or more layers 3, 8 round a metal bar 1 and insulated therefrom by mica or other sheets 4 as shown in section in Fig. 4. Heater ribbons 6 separated from the thermopile ribbons by insulating sheets 7, 9 are secured in position to cover the junctions 5. Further insulating sheets separate the outer layer of the thermopile winding from the outer frames 2 which are clamped to the bar 1 by bolts passing through holes 18, Fig. 1. The heater ribbons are provided with terminal bars 14 and tappings 15 may be taken from various parts of the windings 3, 8. Three different metals are used for the thermopile windings, one being iron and the others having positive and negative temperature coefficients of thermal E.M.F., whereby a linear relation is obtained between the energy delivered to the heaters and the resulting E.M.F. at the thermopile terminals. The two metals may consist of nickelcopper alloys containing respectively 40 per cent nickel, 60 per cent copper and 70 per cent nickel, 30 per cent copper. The heaters may form a part of the circuit of an instrument current and potential transformers for measuring electrical energy in a polyphase circuit or in two single phase circuits. Power, measuring.-The power supplied to a circuit may be measured by the voltage produced by a thermopile constructed as above. Fig. 5 shows an arrangement for measuring the power in a polyphase circuit or two separate single phase circuits in which 19, 20 are the current transformers and 21, 22 the voltage transformers of a measuring instrument. The heaters 6 of the thermopile are supplied with current from the transformers 19, 20, the secondary windings of which are connected at one end through leads 29, 30 to one end of the heaters through calibration resistances 31, 32. The other ends of the secondary windings of the current transformers are connected to balance resistors 23, 24 connected at the centre tap and in series with the secondary windings of the transformers 21, 22 which are connected by leads 14 to the other ends of the heaters. Adjustable resistances 33, 34 are shunted across one heater of each pair to correct for minor inequalities in the resistances of the heaters.
Patent GB-351747-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/08
Filed: 1930-07-04
Abstract: 351,747. Pencil holders. JEFFREYS, R. W., 42, Herongate Road, Wanstead, and CANNON, F., 125, Ardgowan Road, Catford, both in London. July 4, 1930, No. 20328. [Class 146 (iii).] In a screw-propelling pencil of the kind in which the lead or crayon is inserted in a carrier 1, as shown in the Figure, slidable, under the influence of a spring 4 and a lead-extruding rod 3 which engages with a helical track 6, along a slotted guide-tube 9 stationarily mounted in the point section 14 of the pencil, the carrier 1 is provided with an enlargement 2 which is arrested in its travel by an internal abutment 17 in the guide-tube 9 while the leadextruding rod 3 advances further, and the point-section 14 is provided with a nose 15 which is detachable to expose the carrier 1, but which only functions when attached to resist lateral pressure exerted upon the lead. A slotted tube 16, adapted to slide in the guide-tube 9, contains the spring 4 and the rod 3, the latter having a cranked end 5 adapted to protrude through the slotted tube 16 and guidetube 9 to engage with the helical track strip 6. The helical strip 6 is clamped intermediate of its ends within a split sleeve 7 and is rotatable between an abutment 8 on the guide-tube 9 and a washer 10 which is seated upon an inturned rim 11 of the sleeve 7 and is also in contact with a sleeve 12 fixed to the guide-tube 9. The sleeve 7 is frictionally held in the main case section 13 of the pencil and the sleeve 12 is similarly held in the section 14 so that one can be rotated in relation to the other. When the case-parts 13, 14 are rotated relatively to one another the cranked end 5 of the leadextruding rod 3 rides in the track 6 and the carrier 1, 2 is either propelled or retracted. Continued rotation to retract the lead causes the cranked end 5 to ride off the extreme end of the track 6 and re-enter it by forcing a path between the end of the strip and the abutment 8, this action causing a clicking noise to denote the end of the travel of the rod 3. A similar action takes place at the other end of the helical track 6.
Patent GB-818329-A (GB)
Title: Improvements in or relating to covers for writing pads, note books and the like combined with an electric torch
IPC: B42D5/00
Filed: 1956-07-02
Abstract: 818,329. Lamps combined with notebooks. INVERESK ENVELOPE CO. Ltd. [formerly LEVY & CO. Ltd., A.], and MACKAY, W. R. July 2, 1957 [July 2, 1956], No. 20378/56. Class 39(2) [Also in Group XV] A notebook or like cover has combined therewith an electric torch which normally lies towards one end of the back hinge of the cover so as to be along the inner face thereof, but can be raised and switched on to illuminate the book, the torch having contacts which are closed automatically when the torch is raised and opened when it is lowered. The each comprises a casing 15, battery 16 and bulb 17 covered by a cap 18 either wholly or partly transparent or, as shown, with an opening 19 to direct light on to the book. The other end of the casing is closed by a plug 20 of insulating material through which a metal pin 21 slides, the pin 21 having an enlarged head 22 held against the battery 16 by a spring 23. The torch is pivotally mounted by a pin 24 between the side lugs 13 of a bracket 12 secured along the back hinge of a cover 10, the lugs 13 having two pairs of protuberances 26 to hold the torch in the down position and in the raised position shown in dot-dash lines. In the raised position, the pin 21 contacts a tongue 14 on the bracket 12 to complete the circut through the torch to the light bulb 17. The casing 15, bracket 12 and pin 21 are preferably of metal but may be formed of a non-conducting material with a conductive coating.