baber/WOPTO huggingface dataset:
Patent GB-812298-A (GB)
Title: Improvements in or relating to stitch adjusting mechanisms for sewing machines
IPC: D05B27/22
Filed: 1956-08-29
Abstract: 812,298. Sewing machines. PFAFF A-G., G.M. Aug. 29, 1956 [Sept. 12, 1955], No. 26352/56. Class 112 In a sewing machine having a stitchadjusting mechanism comprising a disc 32 connected to an operating knob 29 and formed with an aperture 33 with two abutment edges 34 and 35 for limiting the movement of a stitch-length defining lever 46 at positions corresponding to the same stitch length for forward and reverse feed respectively, said edges are continuously curved in asymmetric relationship and their radial distances from a neutral circle concentric with the axis of rotation of said disc are inversely related to each other, and said disc is co-axial with a stitchsetting shaft 62 which is part of an operative connection between lever 46 and an operating knob 63. Lever 46 is pivoted on a pin 44 carried by a fixed bracket 41, and is provided with a pin 48 which is disposed in aperture 33 and is spring-biased against edge 34, controlling the stitch length in the forward direction. Disc 32 is connected to knob 29 by a hollow shaft 28 which is journalled in a fixed sleeve 27 and journals shaft 62. The latter carries at its inner end three radial arms 58, 66 and 68. A spring 64 connected between arm 66 and an extension of pin 44 normally biases arm. 68 against the latter. Clockwise movement of shaft 62, imparted thereto by knob 63, carries arm 58 into engagement with a pin 57 provided on lever 46, and thereby shifts pin 48 from edge 34 to edge 35 controlling the stitch length in the reverse direction. Lever 46 is connected by a link 20 to an arm 18 on a stitch-adjusting member 14 pivoted at 15 on the machine frame. A spring 53, acting on a second arm of member 14. serves to bias pin 48 against edge 34. A block 13, slidable in a guide groove in member 14, is pivoted at 12 to a bar 8. One end of the latter is forked to embrace a cam 7 on the machine arm shaft 5, and the other end is pivoted to a crank 9 on a shaft 11 controlling the feed advance movement of a feed dog.
Patent GB-355524-A (GB)
Title: Improvements in or relating to the manufacture of metal tubes and other metal tubular articles
IPC: B21C9/00
Filed: 1930-09-04
Abstract: 355,524. Making tubes. WELLMAN SEAVER ROLLING MILL CO., Ltd., Victoria Station House, Victoria Street, London, and HUTCHISON, R., 108, Welling- ton Road, Bilston, Staffordshire, Sept. 4, 1930, No. 26408. [Classes 83 (ii) and 83 (iv).] Rolling; cupping; working at specified temperatures.-A hollow billet a, of stainless, nickel chrome, high carbon and hard steel generally, on a mandrel b is reduced to tube form by being pushed through dies e .. e<3> the mandrel and billet then being conveyed on rollers h &c. to a flash furnace f at about 1100‹ C. where the tube is heated sufficiently to expand it from its mandrel and it then passes out to a skew polishing or reeling and loosening mill d.
Patent GB-334380-A (GB)
Title: A process for producing pitch and like material from tar
IPC: C10C3/04
Filed: 1929-09-02
Abstract: 334,380. Broadhead, C. F., and Andrews, R. S. Nov. 29, 1928, [Convention date]. Pitch. -. Plastic pitch or artificial bitumen is produced from tar by heating or digesting with a suitable aldehyde and a catalyst, such as ammonia, ammonium sulphate, sulphuric acid or hydrochloric acid, and subsequently passing air or other oxidizing gas through or over the substance until it has hardened. A second catalyst such as iron sulphate or copper sulphate may be added to the digested tar prior to treatment with air &c. The temperature of the digesting operation is preferably 80-95‹ C. and for a period of 8 to 16 hours; the temperature may be raised and maintained between 100‹ and 200‹ C. and air, ozone or oxygen passed through or over the substance for a period of 10 to 30 hours. Aldehydes mentioned are formaldehyde, acetaldehyde, perfuraldehyde, and the quantity specified as <1>/80th to <1>/25th by volume of aldehyde to the volume of tar.
Patent GB-616571-A (GB)
Title: Improvements in, or relating to, electric smoothing irons
IPC: D06F75/24
Filed: 1946-09-05
Abstract: 616,571. Hand-irons. JOHNSON, R. C. B. Sept. 5, 1946, No. 26657. Convention date, March 15. [Class 138(ii)] An electric iron comprises a sole plate 1, Fig. 1, supporting a cover 2 containing a water reservoir 3 and between them a steam-generating chamber 4 and a steamgenerating chamber 6 with an electric heating element 27 between them, manual pumping means 17 being provided to supply water from the reservoir through a non-return valve 18 to the steam-generating chamber, and the steam passing out through orifices 7 in the sole plate to the articles being pressed. The steam-distributing chamber 6 is in contact with the sole plate 1 and has holes 8 which are aligned with the hole 7 in the sole plate. It is connected by the short pipe 5 to the steam-generating chamber 4 which is separated from the reservoir 3 by asbestos packing 28a. The reservoir 3 has an outlet pipe 10 which is fitted with a filter 11, the pipe extending to a rubber bulb 17 through a ball valve 12, Fig. 3, in the handle 9. The other end of the rubber bulb 17 is connected to the steam-generating chambers through a non-return ballvalve 18, a union 24 and a pipe 23, which passes through a watertight sleeve 25 in the reservoir 3. The rubber bulb 17 protrudes through an opening in the handle 9 and is covered by a movable thrust plate 26, depression of which squeezes the bulb and forces water into the steamgenerating chamber 4 by opening the valve 18. Releasing the bulb causes water to be drawn into it through valve 12, ballvalve 18 closing under the action of its spring 22. The water reservoir 3 is connected to the sole plate 1 by flanges 2a and has apertures 2c which communicate with transverse tunnels 29 in the asbestos packing 28a to keep the water reservoir cool.
Patent GB-925662-A (GB)
Title: Improvements in and relating to concrete-reinforcing rods
IPC: E04C5/03
Filed: 1959-08-05
Abstract: 925,662. Concrete reinforcing rods. NOCKENSTAHL G.m.b.H. Aug. 5, 1959 [Aug. 6, 1958], No. 26776/59. Class 20 (4). [Also in Group XXII] A concrete reinforcing rod produced by hot rolling and hardened by cold stretching, has longitudinal beads 4 and ribs 2 inclined to the axis of the rod at an angle of 30 to 60 degrees, which ribs decrease gradually in section towards their ends where they run out completely just before reaching the beads. The rod may be given a slight twist during stretching.
Patent GB-1462163-A (GB)
Title: Extrusion methods and apparatus
IPC: B21C23/01
Filed: 1975-06-25
Abstract: 1462163 Extrusion; making profiled sections; rolling; forging RIKEN KEIKINZOKU KOGYO KK 25 June 1975 [14 June 1975] 26852/75 Headings B3A B3H and B3M Extruded structural profiles are produced from aluminium based scrap material 1 by forming the material into a cylindrical body 14, placing the heated body in an extruder housing 15, applying a suction pressure to the housing to withdraw air, and extruding the body. The scrap material may be compacted by a press 2 having hemi-cylindrical dies 7 and 9 and a cutting edge 13, or may be rolled between tandem stands 31 each incorporating three profiled rolls. The body may be heated to a temperature of 350 to 450‹, and be subject to a suction pressure (applied by a pipe 19 while a plug 24 seals the extrusion die) of between 20 and 60 mm. of Hg.
Patent GB-521389-A (GB)
Title: Improvements in or connected with advertising or display devices
IPC: G09F5/00
Filed: 1938-09-15
Abstract: 521,389. Show-cards. HILDESLEY, Ltd., H., and GOODCHILD, E. A. H. Sept. 15, 1938, No. 26941. Addition to 451,058. [Class 3 (ii)] The strut 5 of the display device of the parent Specification is made more rigid by forming it with hinged side flaps B which are turned up to give the strut a channel shape when the showcard is erected. The slot in the upper distancing piece is formed with inturned side edges to effect this erection of the flaps B.
Patent GB-955772-A (GB)
Title: Process for the manufacture of a catalyst
IPC: B01J37/00
Filed: 1962-07-13
Abstract: Pellets of catalytic material are crushed and reagglomerated at least once to produce pellets of greater wear resistance than their precursors.  Agglomeration may be effected under a pressure of 3-12 tons/cm.2 from material which has been crushed to a maximum grain dimension of 1 mm.  Examples describe the preparation of reagglomerated SnO2+Sb3O4 catalysts.  Specification 933,070 is referred to.
Patent GB-1533679-A (GB)
Title: Electric dry shavers having a clipper mechanism
IPC: B26B19/10
Filed: 1976-06-29
Abstract: 1533679 Dry shaver GILLETTE CO 20 June 1977 [29 June 1976] 27109/76 Heading B4B An electric dry shaver comprises a cutter 8, 10 for arcuate oscillation about an axis, i.e. shaft 9 to effect a shaving action, a trimmer element 29 mounted for reciprocable movement and activated via a driver 32 on the cutter, and a coupling mechanism 24, Fig. 2, selectively operating engageable and disengageable with the driver respectively make or break the connection between the driver and trimmer element. The cutter is oscillated by a motordriven crank (11), Fig. 1 (not shown) and lever 14. The driver 32 engages with a U-shaped clip 64, Fig. 3, which is slidable in one end of a pivoted lever 25, the other end of the lever being connected to the trimmer element 29. The clip is moved from the position shown in Fig. 3 to a disengaged position, Fig. 4 (not shown), by means of a control slide 19.
Patent GB-1108351-A (GB)
Title: Safety device for vehicles
Inventor: HAMBLIN HENRY JOEL
IPC: F16H59/04
Filed: 1964-10-01
Abstract: 1,108,351. Change speed control. BRITISH SOCIETY FOR RESEARCH IN AGRICULTURAL ENGINEERING, and MINISTER' OF AGRICULTURE, FISHERIES & FOOD. 1 Oct., 1964 [9 July, 1963], No. 27182/63. Heading F2D. [Also in Division E2] In a tractor, to prevent a gear shift lever 1 from being accidentally knocked into gear while the engine is running and to prevent the engine from being started when the shift lever is not in Neutral, a self-latching device automatically locks the shift lever whenever the latter is moved to Neutral unless prevented from so doing by operation of a manual release and a switch in the self-starter circuit is closed only when the shift lever is locked in Neutral. As shown, an end 19 of a plunger 6 carried by a bracket 5 fixed to the shift lever slides over the surface of a gear-box cover 3 until it is brought, in Neutral, into alignment with, and is spring-urged into, a socket 10 in the cover. The plunger is manually withdrawn and withheld from the socket by a shift lever mounted button acting through a push rod 16 and a lever 12. The socket may be a slot or, where the shift lever is self-centring, a simple bore large enough for the plunger. An electric switch 20 in the self-starter circuit is closed and opened respectively by the plunger engaging the socket in Neutral and by plunger withdrawal so that the starter motor cannot be energized until the shift lever is returned to Neutral. In Fig. 2 (not shown), a ring-shaped plunger surrounding the shift lever below the ball support slides over the underside of a gear-box cover having a suitably shaped aperture to permit the usual shift lever movements until it is brought, in Neutral, into alignment with, and is spring-urged into, a slot or circular-shaped socket portion of the cover aperture thereby locking the shift lever and closing a switch in the self starter circuit. The plunger and the socket may alternatively be mounted respectively on the gear-box and the shift lever.
Patent GB-1423633-A (GB)
Title: Alkyl acrylate copolymers
IPC: C09J7/02
Filed: 1973-06-07
Abstract: 1423633 Adhesive copolymers based on acrylates TEIJIN Ltd 7 June 1973 [14 June 1972 26 July 1972] 27195/73 Heading C3P An adhesive material, useful for example in adhesive tapes, consists of units derived from (a) 94-98 mol per cent of an acrylate component consisting of one or more C 1 -C 14  alkyl acrylates, the number-average of carbon atoms in the alkyl group(s) being 4 to 12 or a mixture of such a component with methyl methacrylate or vinyl acetate in a mol ratio of at least 5 : 1, (b) 2-6 mol per cent of acrylic or methacrylic acid, and (c) 0À002-0À05 mol per cent of a compound having at least two non-conjugated double bonds copolymerizable with (a) and (b). In the examples the acrylate component is 2- ethylhexyl acrylate or n-butyl acrylate, (d) is ethylene glycol or polyethylene glycol dimethacrylate, trimethylolethane trimethacrylate, pentaerythritol tetramethacrylate or diallyl phthalate, and conventional solution polymerization techniques are used.
Patent GB-449528-A (GB)
Title: A process of bonding rubber and metal
IPC: C08J5/12
Filed: 1934-09-21
Abstract: Thermoplastic rubber, i.e. a rubber isomer obtained by chemical treatment of crude rubber, is used as an intermediate layer for bonding rubber, or rubberized fabric, to a metal surface.  The cleaned metal is spread or sprayed with a cement containing thermoplastic rubber, which may contain a filler such as aluminium powder, clay carbon black, zinc oxide or fibrous materials such as ground leather, ground cotton, or asbestos.  A second layer of a tyre-tread stock such as a composition of smoked sheet, aldol-a -naphthylamine, zinc oxide, stearic acid, sulphur, carbon black, mercaptobenzothiazole and mineral rubber may be applied either as a solution in a solvent or as an aqueous dispersion.  A final layer of soft rubber compounded with fillers or a rubberized fabric is applied.  Turpentine may be added to the cements to increase the tackiness.
Patent GB-290897-A (GB)
Title: Improvements in and relating to means for mounting type-writers, calculating machines, and other office machines on tables or desks
IPC: A47B21/02
Filed: 1927-10-13
Abstract: 290,897. Johansson, K. A. A. Oct. 13, 1927. Office desks.-A typewriter, calculating- machine, or other office machine, is mounted on a sliding shelf or like support on an office table in such a manner that it may be turned over into a hidden position when not required. The base 2 of the typewriter 3, Fig. 2, is mounted on a sliding shelf 1 which moves between angleiron guides 4, 5 and has at its outer end two guide strips 6 with semicircular ends 9. The base 2 is fitted with a spindle on which are rollers 10 running in the guides 6. When the typewriter is not required, it is inverted under the shelf, being suspended by the rollers 10 in the guides 6. It may then be moved under the shelf 1 until the rollers are at the inner ends of the guides 6, when the shelf may be pushed in and the doors 13 shut. The underside of the shelf 1 is recessed to permit the passage of the rollers.
Patent GB-337888-A (GB)
Title: Improvements in apparatus for storing and slicing meat, vegetables and the like
IPC: A47J47/00
Filed: 1929-09-07
Abstract: 337,888. Cheetham, J. W., and Cheetham, F. V. Sept. 7, 1929- Cutting slices in succession.; holders.-In apparatus for storing and facilitating the slicing of meat, -vegetables &c. as described in Specification 293,490, a removable glass, porcelain or like container f is spaced from the outer container a by leaf springs h. Containers f of different diameters may be used, the springs h accommodating themselves to the size of the container. The springs hold the container f against rotation during the slicing.
Patent GB-1345179-A (GB)
Title: Non-woven materials
IPC: D04H3/00
Filed: 1971-04-19
Abstract: 1345179 Non-woven fabric CELANESE CORP 19 April 1971 [6 April 1970] 27237/70 Headings D1F and DIR A non-woven material comprises a batt of cross-lapped layers of deregistered crimped continuous filaments stitched together by at least three parallel rows of stitching extending in the batts' longitudinal direction, the angle between the direction of the filaments in each layer and the batt's longitudinal direction ranging from greater than 45‹ to less than 90‹. The batt may weigh from 65 to 875 grams per square metre. The rows of stitching may be spaced less than 60 cm. apart. The, batt may be made from a tow of crimped continuous filaments which has been opened and deregistered by passing it through two pairs of rolls, one roll of each pair being helically grooved, the downstream pair being rotated at a higher peripheral speed than the upstream pair. The grooves in the rolls may be discontinuous. The ungrooved rolls may be coated with a resilient material. Additional pairs of rolls may be, used. The tow may be further opened, e.g. by air jets until its weight is less than 100 grams per square metre. The batt may be stitched by a multi-head knitting machine which may or may not be supplied with thread. The stitching may be at a frequency of from 230 to 1000 stitches per metre. Filaments of polyethylene terephthalate, polyester, cellulose acetate and other organic derivatives of cellulose, polyamides, polyacrylonitrile and copolymers of acrylonitrile, and olefinic polymers such as polypropylene may be used.
Patent GB-1356626-A (GB)
Title: Pigment compositions and process for preparing them
IPC: C09D11/02
Filed: 1971-04-19
Abstract: 1356626 Pigment-resin compositions FARBWERKE HOECHST AG 19 April 1971 [16 April 1970] 27273/71 Heading C3R [Also in Division C4] A pigment composition comprises a natural or synthetic resin or known derivative of a natural or synthetic resin and a dyestuff salt of the' formula  where each R represents hydrogen, halogen, alkyl, alkoxy, nitro, nitrile, carboxylic ester, carbonamido, alkyl-sulphonyl, acylamino, sulphamido, amino, alkylamino, phenylamino, or substituted phenyl, or two Rs ortho to each other together represent a condensed benzene or heterocyclic nucleus, each R 1  represents hydrogen, methyl or ethyl, X represents hydrogen, halogen -SO- 3 - or -COOZ represents an anion n is 1 when X represents hydrogen or halogen and n is 0 when X represents -SO- 3  or -COO-. The Specification includes lists of suitable dyestuffs, natural and synthetic resins and derivatives. The composition can be prepared by dissolving the dyestuff salt in an organic solvent miscible with water, with the addition when X represents -COO- or -SO- 3  of at least the stoichiometric amount of a hydroxide or carbonate of an alkali metal or of an alkaline-earth metal, or of an aqueous solution thereof, adding to this solution the natural or synthetic resin or derivative or a solution thereof in an organic solvent miscible in water and mixing the resulting mixed solution with an excess of aqueous acid to precipitate the compositions. Alternatively, the solvent may be an aromatic amine. Suitable solvents are methanol, ethanol, isopropanol, monomethylglycol, ethyldigylcol, acetone, methyl ethyl ketone, dioxan, tetrahydrofuran, acetonitrile, dimethylformamide, nitromethane, hexamethylphosphoramide, aniline, o- and mtoluidine, vie. m-xylidine, 3-chloraniline, 6- chlor - o - toluidine, 5,6 - dichloro - 2 - aminotoluene, pyridine and alphapicoline. If the amine used as solvent is the same as that used in the synthesis of the dyestuff, the process can be simplified by omitting the working up and isolation of the dyestuff. The acid may be organic, e.g. formic, acetic, monochloracetic, dichloracetic or trichloracetic or inorganic, e.g. hydrochloric, sulphuric or phosphoric. Modified natural resins used in examples are: (3) oxidized, hydrogenated, dimerized or disproportionated resinic acid; (4) natural resinic acid, partially esterified with glycerol and pentaerythritol; (5) modified resinic acid obtained by the reaction of paraformaldehyde with balsam rosin; (7) the product of a reaction between tall resin and acrylic acid, esterified with glycerol; (8) and (10) an adduct of balsam rosin and phenol; and (9) dimerized rosin. Use.-In printing inks.
Patent GB-1078851-A (GB)
Title: Surface ignition counter
IPC: G06M3/00
Filed: 1964-07-02
Abstract: 1,078,851. Transistor pulse-circuits. BRITISH PETROLEUM CO. Ltd., R. J. K. ARNOLD, and A. DE VAULT BURDIS. July 2, 1965 [July 2, 1964], No. 27334/64. Heading H3T. [Also in Division G4] Surface ignition in an I.C. engine is detected and counted. Fig. 2 shows the signals picked up by an electromagnetic or piezo-electric transducer from a cylinder in (a) normal combustion, (b) surface ignition, (c) knock. The signals from several cylinders are applied through plugs PL2-PL9 to an amplifier VT1, VT2 and shaper VT3, before splitting at VR1. An amplitude discriminator VT10-VT12 deletes pulses due to normal combustion. A differentiator and waveform generator VT4- VT8 responds to the signal reaching a value below the threshold value to produce a delayed inhibiting pulse which is applied to the base of VT15. This effectively blocks a pulse due to knock but is too late to block a pulse due to surface ignition. The amplitude discriminator VT10-VT12 is adjusted automatically for engine speed by the voltage developed across an integrating capacitor C19 by VT9. The delay of VT7-VT8 is also adjustable manually according to engine speed and type of engine by multivibrator VT16, VT17 and selector switch SW2. The output of VT15 feeds a binary-coded decimal counter 68 which produces a staircase voltage to indicate the units on a meter M1. The tens count passes to a monostable multivibrator circuit VT18, VT19 which drives an electromagnetic counter 74.
Patent GB-452067-A (GB)
Title: Improvements in and relating to woodworking machinery
IPC: B27G19/10
Filed: 1935-10-03
Abstract: 452,067. Wood-planing &c. machines. WHITE, T., c/o White & Sons, Ltd., T., Paisley. Oct. 3, 1935, No. 27350. [Class 145 (i)] In a woodworking machine, such as a planer, the work 4 is held down on the table 2 over which it is fed by a pressure shoe 5 pivotally mounted on a shaft 6 having eccentric end portions 6<a> journalled in the machine frame ; the shaft 6 can be rotated by a lever 7 to adjust the shoe towards or away from the cutter 3. A fixed abutment 8 limits the lift of the pressure shoe to prevent fouling of the cutter thereby ; the abutment has stepped surfaces 8<a>, 8<b> contacted by the surface 5<b> of the shoe, so that the permissible lift of the shoe varies according to its position relative to the cutter. In a modification, the abutment surface of the shoe is stepped ; further, the surfaces may be continuously curved. The boss 5<a> of the shoe has a lug 11 which prevents the entry into the machine of work of thickness greater than the lift of the shoe permitted by the setting. Alternatively a rotatable shaft carries lugs of various heights to limit the thickness of wood which can pass into the machine. A number of pressure shoes may be mounted on the same shaft, and compression springs are provided to press them on to the work.
Patent GB-1361592-A (GB)
Title: Compass
IPC: G01C17/00
Filed: 1973-06-08
Abstract: 1361592 Magnetic compasses FRANCIS BARKER & SON Ltd 8 June 1973 27359/73 Heading G1F [Also in Division B3] A magnetic compass comprising an inner case in which is mounted a magnetic assembly and an associated compass dial is provided with an outer case 10 enclosing the inner case, a lid 11 incorporating a sighting line, and a hinge 12 removably mounted between the outer case 10 and the lid 11. As shown in exploded form, the outer case may also removably support a prism sighting unit 13, all the removable members being readily replaceable. The hinge 12 may comprise two parts 16, 19 having tubular portions which are aligned and connected by a hinge pin 21, the parts 16, 19 being machined to match the shape of the compass components to which they are attached by screws 17, 20. The prism sighting unit 13 is slideable relative to a mounting block 28 which is machined to match the shape of the case 10 and is attached thereto by screws 30. The case 10 may be of light alloy and the hinge 12 and mounting blook 28 may be of brass.