baber/WOPTO huggingface dataset:
Patent GB-304836-A (GB)
Title: Improvements in or relating to the grinding of gear teeth and the like
IPC: B23F5/02
Filed: 1928-06-19
Abstract: 304,836. Smallpeice, C. D. P., and Rivers, J. H. June 19, 1928. Gear-cutting. - In a gear-grinding machine of the kind in which the work is rolled relatively to a reciprocating grinding-wheel of rack-tooth section to generate the tooth profile. the indexing mechanism is controlled by the combined action of the two reciprocating slides carrying the work and grinding-wheel respectively. The blank 2 is mounted cn a spindle 4 carried in a headstock 5 which may be traversed across the bed 6 to impart the generating movement by hydraulic power applied at 8. Corresponding rotary movement is imparted to the blank to give correct rolling by means of flexible band mechanism comprising steel tapes 11 passing over a drum 9 on a tubular shaft 10. One end of each band is secured to a plate 12 keyed to the drum and the other ends are respectively secured to two reels 13 fixed to a vertically-adjustable bracket 14 mounted on the machine bed. The grinding- wheel 13 driven by a belt from a pulley 18 is mounted on a vertically-adjustable slide 16 carried by a' saddle 7 which is reciprocated axially of the gear teeth preferably by hydraulic gearing. The shaft 10 is connected to the workspindle by means of a locking-bolt 19 carried by a plate 20 and coacting with an indexing-disc 21 on the work-spindle. To index the work the bolt is withdrawn while the grinding-wheel is clear of the work by means of trip mechanism 24 actuated by the saddle 7 and acting through a link 25 on a shaft 26. This shaft carries a cam 27 which acts through lever mechanism 28, 29 to slide a block 30 into the path of a roller 32 mounted on a pivoted plate 33 which is slotted to engage a pin 35 on the locking bolt. At the same time as the bolt is withdrawn a brake shoe 22 on the block 30 engages a drum 23 on the work-spindle to hold the latter stationary while the bolt 19 moves into the next notch in the index disc. In some cases the grinding-wheel may have two or more edges so as to operate on two or more adjacent tooth spaces simultaneously.
Patent GB-297572-A (GB)
Title: Improvements in the application of pressure bolts to bottom boards of trousers presses and the like
IPC: A47G25/72
Filed: 1927-09-21
Abstract: 297,572. Everitt, J. Sept, 21, 1927. Trouser presses.-In trouser presses of the kind provided with transverse bars d having at their ends rigid bolts c which project up through holes a<2> in the bottom board a, the bars d are detachably held on the bottom board by clamps e which are pivoted at e<2> so that they can be swung either aside or into clamping position. The clamps e are formed with indiarubber pieces e<3> constituting feet for the press. The clamps may have a snap action on the bars.
Patent GB-1367422-A (GB)
Title: Drive for a container processing machine
IPC: G01N33/38
Filed: 1972-05-26
Abstract: 1367422 Gearing for conveying rotary motion EMHART CORP 26 May 1972 [22 July 1971] 25001/72 Heading F2Q [Also in Division G1] Apparatus for pressure testing bottles B, Fig. 1, moving along a screw conveyer C, 68 at uniform speed comprises air pressure heads 44, 46 which may accurately track and engage the tops of the bottles so that if a hole exists in a bottle or if the mouth or the bottle is so distorted that an inadequate seal with the pressure head is formed then air leakage prevents a selected pressure level from being reached and the faulty bottle is ejected by a pusher 66, Fig. 3, from the conveyer C. The pressure heads 44, 46 are at the ends of cylinders 20, 22 supplied by compressed air via valves 48, 50, Figs. 2, 3, actuated by fixed cams 56, 60, so that if a bottle does not appear under one of the heads the probe and valve drop below the cam and are not actuated by it. The heads are arranged to move with and engage the tops of the bottles on the conveyer by rotating a crank 106, and pin 108, Fig. 7, to cause a crosshead or link 30 forming part of the cylinders 20, 22 to orbit. The crank 106 is rotated by elliptical gears 100, 102 and cranks 26, 28 of the same length as 106 so that one rotation of 106 translates link 30 thro' a single orbit, the cyclically varying elliptical gearing permitting the pressure heads to move on to and travel with the bottles at slow speed and return at high speed and provide more accurate tracking of the bottles by the heads. A protective shield to envelop the bottles under test comprises two shells 120, 122, Fig. 3 and 8, which are also arranged to track the bottles in the same manner as the pressure heads. Each shell is suspended from links 144, 174 having wheels 912, 914 engaging a T-shaped guide rails 190, 200 and the links 144, 174 are orbited by rotating cranks 140, 142, 170, 172 connected to slide rods such as 150 and sleeves 152 and coupled together for rotation in synchronism with one another by the cranks 26, 28 driving gear sets 220, 240 in Fig. 2. These linkages are rotated by gear trains as shown in Figs. 2 and 3 by a motor 70 driving chains 80, 88 and a shaft 76 rotating the elliptical gears 100, 102, and a phase adjuster 84 allows the proper phase relationship to be set between the worm 68 and the other parts of the apparatus.
Patent GB-462465-A (GB)
Title: Manufacture of methyl-aminonaphthalene-sulphonic acids
Filed: 1935-09-09
Abstract: 1 - Methyl - 4 - aminonaphthalene - 2 - sulphonic acid and 1-methyl-4-aminonaphthalene-7-sulphonic acid are prepared by subjecting 1-methyl-4-aminonaphthalene to the action of a sulphonating agent and separating by fractional crystallization of the alkali salts the two sulphonic acids which are formed.  The preferred sulphonating agent is concentrated sulphuric acid.  In examples: (1) 1-methyl-4-amino-naphthalene is added slowly to strong sulphuric acid at 120 DEG  C. and then heated for one hour at 150 DEG C.  The product which is poured into ice water, filtered and dried, consists of 65 per cent of the -2-sulphonic acid and 35 per cent of the -7-sulphonic acid.  If the heating is carried on for a longer time at a lower temperature, a larger amount of the -2-sulphonic acid is obtained; (2) the product of example (1) is neutralized with caustic soda, and the sodium salt of the 1-methyl-4-amino-naphthalene-7-sulphonic acid is precipitated by the addition of sodium chloride; (3) 1-methyl-4-aminonaphthalene is added to concentrated sulphuric acid so slowly that the temperature does not rise above 50 DEG  C., whereupon fuming sulphuric acid is added slowly and the mixture heated at 100 DEG  C. for one hour.  The product is worked up as in example (1); (4) 1-methyl-4-aminonaphthalene is added to sulphuric acid as in example (3) and chlorosulphonic acid added slowly and heated to 100 DEG  C. The product is worked up as in example (1).  Both the sulphonic acids are crystalline.  The -7-acid yields a blue colour with ferric chloride, whereas the -2-acid does not.
Patent GB-502113-A (GB)
Title: Improvements in pressure lubricating apparatus
IPC: F16N5/00
Filed: 1937-09-15
Abstract: 502,113. Lubricating-pumps. PIL. LIN, J. B. Sept. 15, 1937, No. 25087. [Class 102 (i)] [Also in Group XVIII] In lubricating-apparatus comprising a pump 3 operated by a fluid-pressure motor 4, the pump is supplied from a commercial bulk container 18, carried by a holder which is adapted to accommodate containers of various sizes. The holder comprises an adapter 9, having a spigot which engages an elbow 7 leading to the pump, and held by spring clips 11. The open mouth of the container 18 engages a packing- ring 10 in a groove in the adapter, against which it is held by spring clips 13, adapted to engage holes 15, 16 or 17 in depending parts of a cap 14. The container is enclosed in a casing 22, held by studs 23. The apparatus may be mounted on wheels 2.
Patent GB-1336455-A (GB)
Title: Apparatus for the monitoring and the regulation of an alkali- metal chloride electrolysis plant with mercury-cathode cells
IPC: C25B15/04
Filed: 1971-04-19
Abstract: 1336455 Monitoring and regulating alkalimetal chloride electrolysis cells MONTECATINI EDISON SpA 19 April 1971[25 March 1970] 25150/71 Heading C7B [Also in Division G3] An apparatus for monitoring and regulating properties of an alkali-metal chloride electrolysis cell 1 with a mercury cathode comprises a pressure-differential sensitive device for detecting variations in the mercury flow, an electromagnetic device 14 for detecting variations in the flow of brine through changes in anode current, similar devices 15 for detecting current overloads at the anodes and a device 3 for measuring the rate of flow of brine entering the cell, these devices operating alarm signals, cutting off the electrical input to the cell by shorting switches, conveying air to the cell to dilute explosive mixtures and switching the chlorine output to a scrubbing pipe in the event of dangerous conditions, and also automatically operating electric motors 16 for regulating the inter-electrode gaps. The device for detecting variations in mercury flow comprises a diaphragm located at the mercury supply pump and associated with a microswitch, and the device 14 comprises a hollow magnetic core placed around the input conductor to a bar 13 for raising the anodes and provided with a spring loaded keeper. In addition to these properties, the voltage between the cathode at 23 and anodes at 24, 24', 24" is measured by circuit 22, the current at the anode bars 13 by circuit 25, the temperature of brine leaving the cell by circuit 26 which preferably comprises thermocouples and thermo-sensitive resistors, and the temperature of caustic soda leaving an amalgam decomposer 28 by circuit 27, while the percentage of hydrogen in the chlorine gas may also be detected. A relay 7 and electro-magnetically operated valves 8 and 9 are provided to respectively cut off the electric input to the cell, switch over the chlorine output and convey dilution air. The instruments and actuating buttons for each cell are mounted on a cell panel and a main desk communicates with all the cell panels in an electrolysis plant through a change over assembly which may be a scanning device with mechanical, pneumatic or electronic units and may be controlled by a computer.
Patent GB-158941-A (GB)
Title: Improvements in or relating to supporting frames or racks for veils
IPC: A42B5/00
Filed: 1919-10-14
Abstract: 158,941. Grewar, E. Oct. 14, 1919. Fittings, internal. - A box for ladies' veils is fitted with two opposed members l, m provided with key-hole shaped or like slots adapted to hold the end of one or more folded or rolled-up veils, the members being spaced apart so as to maintain the veils in somewhat stretched condition.
Patent GB-774772-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C4/24
Filed: 1954-08-31
Abstract: 774,772. Chairs. HAMILTON, E. F. Aug. 31, 1954 [Jan. 25, 1954], No. 25294/54. Classes 52 (3) and 52 (5). A collapsible chair has a tubular metal backmember 10 of inverted U-shape providing rear legs 14, front legs 20 forming part of L- shaped tubing 22 which is connected to members 32 embracing legs 14 to be rotatable thereon and a seat 25 pivotally mounted on the chair back, so as to be foldable upwardly thereagainst, by means of a yoke 58 having fingers 59 pivotally received in openings in the back 10, the legs 20 which support the seat 25 in the erect position being foldable against the back gate-leg fashion so as to lie one upon another. Specification 774,774 is referred to.
Patent GB-1471189-A (GB)
Title: Oxidation-resistant low alloy steel and article
IPC: B32B15/01
Filed: 1974-06-07
Abstract: 1471189 Alloy steel ARMCO STEEL CORP 7 June 1974 [25 June 1973] 25383/74 Heading C7A Alloy steel comprises: - the balance apart from impurities, such as up to 0À03% S and 0À04% P and low residual amounts of oxygen and nitrogen, being iron. The Ti content may be wholly or partially replaced by a stoichiometric amount of Nb and/or Zr in the range 0À1-1À5%. In examples samples are hot rolled from 1149C optionally annealed at 927C cold rolled and optionally annealed at 871C. The alloys may be used as substrates for Al or Al-alloy coatings, e.g. produced by hot-dipping.
Patent GB-462684-A (GB)
Title: Improvements in or relating to television and like apparatus
IPC: H01J29/76
Filed: 1935-09-12
Abstract: 462,684. Electromagnets. GILBERT, A. H., MERDLER, L. R., and BAIRD TELEVISION, Ltd. Sept. 12, 1935, No. 25386. [Class 35] [Also in Group XL] An electromagnet for deflecting the electron beam in cathode-ray tubes has adjustable polepieces 4. The polepieces are loosely riveted or bolted at 5, to the U-shaped core 3, which is made of straight elements. The limbs of the U - member may also be pivoted at 6 to the base which preferably carries a single magnet coil 2.
Patent GB-278698-A (GB)
Title: Improvements in the manufacture and production of condensation products of urea and formaldehyde
IPC: C08L61/24
Filed: 1927-09-27
Abstract: 278,698. I. G. Farbenindustrie Akt.- Ges. Oct. 8, 1926, [Convention date]. Addition to 258,289. Urea-formaldehyde condensation products.-In the production of urea-formaldehyde condensation products by the process of the parent Specification, materials capable of furnishing acids during the heat treatment required for hardening are added to the condensation products prior to the hardening stage, i.e. either during or after the practically complete removal of the water. Both inorganic and organic materials may be employed, e.g. magnesium chloride and formic esters; formamide may also be used, for its hydrolysis yields ammonium formate, which becomes converted by excess formaldehyde into hexamethylenetetramine and formic acid. The modifi cation is also applicable to the process of Speci fication 288 346. in which urea and formaldehyde are first condensed in an aqueous acid solution of pH between 4 and 6, and the products then concentrated while maintaining pH between 6 and 7. According to the examples, (1) urea is condensed with formaldehyde in the presence of primary sodium phosphate: after the addition ol a mixture of secondary and tertiary sodium phosphate to reduce the pH to 6.6, the solution is partly concentrated in vacuo; formamide is then added and after the concentration has proceeded further, the viscous product is hardened in a mould by prolonged heat treatment: (2) urea and formaldehyde are condensed in the presence or a buffer mixture of sodium acetate and acetic acid: sodium acetate solution is added and the whole concentrated in vacuo; towards the end of the concentration stage, magnesium chloride is added, and the viscous end product then completely hardened by prolonged heat treatment.
Patent GB-156351-A (GB)
Title: An improved construction of door spring and check
IPC: E05F3/10
Filed: 1919-10-17
Abstract: 156,351. Snell, G. Oct. 17, 1919. Operating and controlling doors by springs and checks of the kind comprising a casing adpated to be sunk in the floor containing a spring-urged slide co-operating with a cam member mounted upon the door pivot journaled within the casing. A cam 9 is mounted on the door pivot 4, its shoulders 10 engaging rollers 11 carried by the slide member 12 which reciprocates in guides 13. The slide is connected by a rod 14 with the piston 15 working in the cylinder 16. The piston is provided with a packing-ring 18 and the cylinder with packing-glands 21 and 23, which maintain the cylinder fluid-tight in operation. Between the front face of the piston and the rear end of the cylinder is disposed an operating- spring 17. A screw-threaded disc 19 having a shank 20 with tommy holes 22 allows adjustment of the spring compression from without. A ball check-valve prevents return of the fluid on opening the door and a restricted passage regulates its return on closing. Specification 4321/04 is referred to.
Patent GB-630869-A (GB)
Title: Improved hinge and door assembly
IPC: E05D15/50
Filed: 1946-08-27
Abstract: 630,869. Releasable fastenings ; hinges. WOOLER, J. Aug. 27, 1946, No. 25646. [Classes 44 and 65 (ii)] In a hinge mounting enabling a door to pivot about either of two opposite sides while preventing accidental disengagement of both sides each of the two hinges on one side comprises a pair of plates, one of which is provided with a pair of sockets 5 and the other with plungers 8 functioning as pivots releasably engaged with the sockets. The plungers, which are pressed into the sockets by a spring 9, are engaged with the adjacent ends of a pair of levers 12 crossjointed together at 13. One of the opposite ends of the levers is engaged with a rod 15 and the other said opposite end with a tube 17 which surrounds the rod. Relative axial movement imparted to the rod and tube brings together the ends of the levers engaged with the plungers to withdraw the latter from their sockets. Associated with the two hinges on a side of the door is a handle mounted on a rotatable spindle 29, the latter carrying a double-armed lever 30 which engages bell-crank levers 21 and 22. The ends of lever 21 are respectively engaged with the tube 17 and a rod 26 corresponding to rod 15, and the ends of lever 22 with the rod 15 and a tube 28 corresponding to tube 17. Turning of the handle thus rocks the bellcrank levers to effect relative axial movement of the rods and tubes. Each inner bell-crank lever is provided with an abutment 44 adapted, when the corresponding handle is actuated, to impart axial movement to an inwardly spring-biassed rod 32, the inner end of which abuts a wedge-shaped plate 35 pivotally mounted at 36. Movement of one rod is conveyed through the plate to the other rod. The latter thus makes contact with its corresponding abutment 44 to prevent simultaneous actuation of the handles when the door is closed. The pivot 36 is formed by the upper end of a downwardly spring-biased rod 37, the lower end of which rests on a tapered surface on a plunger contained in a socket 43 mounted in the lower part of the door. Upon the latter opening, a spring projects the plunger from its socket, allowing the wedge plate to fall and to move the rods 32 into contact with the abutments 44, when neither handle can be actuated. The Provisional Specification states that the sockets 5 may be formed with lugs adapted to guide the plungers into engagement with the sockets.
Patent GB-1339376-A (GB)
Title: Thermoplastic acrylic powder coating compositions
IPC: C09D133/12
Filed: 1972-06-01
Abstract: 1339376 Acrylic powder coating compositions FORD MOTOR CO Ltd 1 June 1972 [16 Aug 1971] 25647/72 Heading C3P A powder coating composition comprises a mixture of (A) a thermoplastic acrylic polymer of number average molecular weight 30,000 to 80,000 and a Tg of 60-110‹ C.; (B) an antistatic agent present in an amount sufficient to give the composition a resistivity of 10<SP>6</SP> to 10<SP>11</SP> ohm/cm; and (c) 0À1 to 10% by wt. based on the total composition, of a flow control agent which is a polymer having a number average molecular weight of at least 1000 and a Tg below 40‹ C. The acrylic polymer may be, for example, polymethyl methacrylate, polyethyl methacrylate, or a copolymer of two or more of methyl methacrylate, ethyl methacrylate, butyl methacrylate, ethyl acrylate, butyl acrylate, styrene, acrylonitrile and methacrylonitrile. The polymer may also contain units derived from glycidyl methacrylate or methacrylic acid. The antistatic agent may preferably be a solid tertiary amine or 2- methyl-4-ethyl imidazole. Others such as alkyl(polyethyleneoxy) phosphates, alkyl aryl (polyethyleneoxy) phosphates, polyethyleneimine, poly(2-vinylpyrollidone), pyridinium chloride, poly(vinyl pyridinium chloride); polyvinyl alcohol and certain inorganic salts, may also be used. Examples of the flow control agent are polylauryl acrylate or methacrylate, polybutyl acrylate, poly(2-ethyl-hexyl acrylate), or poly- (2-ethyl hexyl methacrylate). The flow control agent may also be a fluorinated polymer such as an ester of a polyethylene or polypropylene glycol with a fluorinated fatty acid such as perfluorooctanoic acid. The composition may also contain a pigment and/or plasticizer. In use the powders are coated on to substrates e.g. by electrostatic methods, and baked on. In the examples, steel panels are coated.
Patent GB-1501808-A (GB)
Title: Electric storage cell particularly an electric lead-acid storage cell suitable for use in traction batteries
IPC: H01M50/172
Filed: 1976-06-21
Abstract: 1501808 Electric cell terminal connection VARTA BATTERIE AG 21 June 1976 [25 June 1975] 25689/76 Heading H1B An electric storage cell having a terminal comprising a tubular member having a higher conductivity than lead extending in a leakproof manner through a cover of a cell container 1 and the end of the member within the container being mechanically and electrically undetachably connected to a bridge 2 interconnecting electrode plates of one polarity. The conductor may be a Cu or Al tube 3, may be closed at the end contacting lead bridge 2, may be cast into the bridge and may have lateral extending strips 9 embedded in the bridge 2. The tube may be coated sequentially with a layer of Sn and a layer of Pb 4 and may be coated with a synthetic resin, e.g. polypropylene or polyethylene which is welded to the resin cell cover 5. Alternatively the coated tube may be enclosed in a lead sleeve 6 which itself has a synthetic resin coating 7 which may be interposed between the lead sleeve 6 and the lead coating 4.
Patent GB-1437380-A (GB)
Title: Spiked shoe
IPC: A43C15/16
Filed: 1973-05-30
Abstract: 1437380 Boots &c ONITSUKA CO Ltd 30 May 1973 [6 June 1972 27 Dec 1972] 25703/73 Heading A3B A sole for an athletes spiked shoe comprises a number of spikes each having an effective length E.L. made up of an upper part 12 A2  and a lower part 12 A1  formed integrally together. The lower part has a uniform drosssection throughout its length and is terminated at its lower end by a planar surface. The lower end of the upper part has a resistance face 20 extending outwardly beyond the lower part for checking the spike from sinking unnecessarily deep into the ground. The axial length of the upper part 12 A2  must be at least half E.L. In one form, Fig. 10 (not shown), the cross-section of the lower part is rectangular. In another, Fig. 11 (not shown) the resistance face is concave. In Fig. 12 (not shown) the upper part comprises an upper circular-cylindrical part and a lower firusto-conical part. In Fig. 13 (not shown) the resistance face is convex and the planar surface of the end of the spike is not normal to the axis of the spike. In Fig. 14 (not shown) the upper part is entirely frusto conical.