baber/WOPTO huggingface dataset:
Patent GB-977379-A (GB)
Title: Preparation of naphthalene and dimethyl-naphthalene
Inventor: MASON JOSEPH CROWDER
IPC: C07C15/24
Filed: 1963-08-15
Abstract: <PICT:0977379/C4-C5/1> Naphthalene and 2,6- and 2,7-dimethylnaphthalenes (DMN) are obtained from an aromatic 440-525 DEG  F. gas oil fraction by (1) hydrodesulphurizing; (2) separating the product from (1) into (a) a methylnaphthalene (MN) fraction boiling up to 500 DEG  F.; (b) a fraction boiling in the range 500-510 DEG  F. containing DMN; and (c) higher boiling materials; (3) dealkylating fractions (a) and (c) at above 1,000 DEG  F. to obtain napthalene and a fraction rich in beta-MN; (4) reacting the latter with formaldehyde and an acid catalyst to form diarylmethanes; (5) passing the diarylmethane fraction to step (1) where it forms DMN; (6) fractionally crystallizing fraction (b) from step (2) to crystallize selectively 2,6- and 2,7-DMN; and (7) recycling the filtrate to dealkylation step (3).  Feed, preferably an aromatic extract, in line 10 is hydrodesulphurized in zone 13 over cobalt molybdate or molybdenum disulphide on alumina at 800-980 DEG  F., 150-1,000 p.s.i.g., a hydrogen to hydrocarbon mol. ratio of 3-25: 1 and an LHSV of 0.5-10.  In fractionator 15, gas and gasoline are removed and the bottoms are separated in columns 36 and 37 into 400-500 DEG  F. and 510-520 DEG  F. fractions for dealkylation, a 500-510 DEG  F. fraction for crystallization and bottoms which are discarded. Dealkylation is effected in zone 21 thermally at 1,000-1,400 DEG  F., 150-1,000 p.s.i.g., hydrogen to hydrocarbon mol. ratio of 3-25: 1 and a residence time of 2-300 seconds or catalytically over cobalt molybdate or molybdenum disulphide at 1,000-1,200 DEG  F., 150-1,000 p.s.i.g., hydrogen to hydrocarbon mol. ratio of 5-25: 1 and LHSV of 0.2-5.  In fractionator 23 naphthalene is recovered in the 400-450 DEG  F. fraction and the remainder is separated into methylnaphthalenes in line 30 a 500-520 DEG  F. fraction passed to fractionators 36 and 37 and a discarded bottoms. Diarylmethanes are formed in reactor 33 by reaction with formaldehyde or paraformaldehyde and formic or sulphuric acid, e.g. 70-80% aqueous formic acid under reflux and the product passed to zone 13. 2,6- and 2,7-DMN are obtained in crystallization unit 43 and the filtrate passed to dealkylation.
Patent GB-534249-A (GB)
Title: Improvements in liquid-cooled hpmv lamps
IPC: H01J61/52
Filed: 1939-12-18
Abstract: 534,249. Metal-vapour lamps. GENERAL ELECTRIC CO., Ltd., BOURNE, W. A., and GARDINER, H. W. B. Dec. 18, 1939, No. 32431. [Class 39 (i)] [Also in Group XXXVI] In liquid-cooled high-pressure metal vapour lamps, the discharge tube 1 has terminals 2, 4 at the ends adapted to make sliding contact with resilient contact members 12, 24 carried by metal end pieces 8, 13 on a casing 5 the central portion of which is, at least in part, transparent. The member 8 has an annular passage 10 for the inflow of the cooling liquid and a tubular passage for its outflow. These parts are connected together and to the members 12 electrically and form the external terminal of the corresponding electrode of the discharge tube. A baffle member 11 directs the flow of the liquid over the tube. At the other end of the casing a liquidtight joint is made preventing access of the liquid to the terminal 4. In the form shown this comprises an insulating sleeve 3 around the end of the discharge tube, a flanged metal sleeve 18 carrying a rubber washer 21 surrounding the member 3 and supported on an internal rib 23 of the member 13 by means of a flange 20 and interposed washer 22, and a hollow cylinder 15 carrying the contact members 24 and driven down on the rubber washer 21 by the nut 14 to compress it against the sides of the sleeves 3, 18. A rib 25 on the sleeve 3 is provided to position the end of the discharge tube relatively to the sleeve 18. In a modification (Fig. 2, not shown), the liquid-tight joint is formed by making the insulating sleeve 3 of soft rubber and compressing a flange thereon between an internal rib on the metal end member of the casing.
Patent GB-845363-A (GB)
Title: Polymers of hydrolysis products of hydrocyanic acid and compositions containing the same
IPC: C08G61/04
Filed: 1956-10-25
Abstract: Water-insoluble polymerized hydrocyanic acid is partially or completely hydrolysed with an aqueous solution of a non-oxidising acid or of an alkali at 25-200 DEG C.  The hydrolysis may be represented: -  <FORM:0845363/III/1> where X is H or a salt forming cation, preferably alkali metal or ammonium.  The hydrolysis product is a mixture of the two substances with the second predominating. Liquid HCN at least 95%, preferably anhydrous, is polymerized at 20-30 DEG C. at atmospheric pressure under reflux in the presence of an alkaline reacting catalyst, say 0.1-10%, of e.g. methylamine, trimethylamine, ethylamine, triethylamine, tri-n-butylamine, n-propylamine, aniline, toluidine, benzylamine, naphthylamine, hydrazine, potassium or sodium hydroxide or carbonate, or ammonium hydroxide.  Excess HCN evaporates and the solid polymer is dried. The polymer is hydrolysed by refluxing at 25-200 DEG C. with sulphuric or hydrochloric acid, or alkali metal or ammonium hydroxide.  The hydrolysed polymer is recovered as an aqueous solution from which solid is recovered by evaporation.  A minor amount of the hydrolysed polymer or the metal or ammonium salt thereof may be used as a dispersing or deflocculating agent for dispersions of finely divided solid e.g. pigments, clays, adhesives, or cement, in aqueous media.  0.5-5% of the hydrolysed polymer or salt may be added to pigment dispersions in paint processing and may be incorporated as an aqueous solution or solid and may be added during milling or simultaneous mixing and dispersion.  Pigments referred to are :- ferric oxide, iron blues, red lead, basic lead carbonate or sulphate, lead chromate, zinc oxide, chromate, or sulphide, lithopone, chromium oxide, titanium oxide (anatase and rutile), antimony oxide, cadmium sulphide, lead titanate, titania coated barium sulphate or calcium carbonate, zinc sulphide coated magnesium carbonate, or mixtures of lead chromate and oxide (chrome orange), or of iron blue and lead chromate (chrome green).  Examples III, IV, V and VIII refer to aqueous dispersions of titanium dioxide, zinc oxide, kaolin, and soot respectively.  1-4 lbs. of the hydrolysed polymer may be added to a 42 gal. barrel of drilling mud consisting of a dispersion of clay, e.g. bentonite or mediumyield clays, in fresh or salt water, or in an oil in water emulsion, which may also contain weighting materials, e.g. barytes, iron oxide, calcium carbonate, or silica, and other additions, e.g. caustic alkali, quebracho, lime, cement, or gypsum.  Examples VI and VII refer to drilling muds containing Tennessee Ball clay, bentonite, and Dixie Bond clay dispersed in fresh and salt water respectively. Specification 456,151 is referred to.
Patent GB-1340946-A (GB)
Title: Conditioning machines for agricultural material such as hay straw or blade material or the like
IPC: A01D43/10
Filed: 1971-07-12
Abstract: 1340946 Hay conditioning machine BUCHER-GUYER AG MASCHINENFABRIK 12 July 1971 [24 July 1970] 32552/71 Heading A1F Conveying drum 5, rotated in direction 27 and arranged behind disc mower 7 with respect to the direction of travel of the machine unit, has conveying tools 13 on its surface used to transport material through a channel formed by the guide wall 14 and the drum 5 surface to a pivotal comb 19 having conditioning comb teeth 18, and then deposit the material behind conveying drum 5 onto the ground. Disc mower assembly 7 consists of four discs 9 driven by transmission housing 8 which is slidable on the ground, the discs being rotatable in pairs in mutually opposite senses, and having diametrically oppositely situated cutting tools 11 pivotally mounted by bolts 10 and mounted at an angle of 90 with respect to the cutting tools 11 of neighbouring disc 9. Comb unit 19, situated in opening 16 which extends over the entire length of guide wall 14, consists of a comb spine 17 and comb teeth 18 and is adjusted by mechanism 20 consisting of adjustment lever 23 which may be selectively engaged by means of pawl 21 at ratchet portion 22 of rigid plate 24. Tension spring 26 suspended between plate 24 and strut 25 draws comb unit 19 towards plate 24. In another embodiment, the comb has a rectangular cross-section and has another similarly constructed; pivotally adjustable comb connected to it by a turnbuckle and lever having holes, permitting the combs to be inclined at different angles to one another. The combs may be replaced by press rolls or toothed discs of large enough diameter such that their shafts are located outside the conveying channel 15, the rolls and toothed discs being either driven by contact with the drum or by an external drive. In another embodiment consisting of two conditioning units 39, the drum mower consists of four cylindrical drum members 42 which rotate in pairs in opposite senses. The adjustment mechanism provided is similar to that in the other embodiments. (For Figures see next page)
Patent GB-324976-A (GB)
Title: Improvements in or relating to the manufacture of rugs, mats or the like
IPC: D04G3/00
Filed: 1928-11-08
Abstract: 324,976. Dakin, P. W. H. Nov. 8, 1928. Tufting-machines.-A machine for making rugs by cutting off lengths of yarn from a colour-selecting device, pulling them through a backing fabric and knotting them, has a latch-needle, a looper, and means for moving the backing fabric progressively past the needle. The cops of yarn are carried on spools and pass through porcelain eyes 3 through tubes 5 on a rotatable disc 4 having teeth engaging a quadrant 7 with coloured discs 6. The disc 4 is rotated by the handle 8 to select the yarn of the desired colour. This is then pulled forward a given length by pincers 10 sliding on a carriage and cut by the blades 27, 9. Arms 55 operated by the rod 57 sliding bar 56 and a cam roll, press the cut yarn into the needle 43, Fig. 8, which pulls it through the fabric, spreads the loop, and returns to take the free ends from the looper 35 to pull them through the loop to knot the yarn firmly to the fabric, Fig. 10. The looper is given an elliptical motion by two arms following two cams. The driving shaft 11 is rotated from a pulley 492 by a friction drum 13, and the machine has a brakedrum 15 operated by a chain 16 attached to a treadle for quick stopping. The pincer carriage is reciprocated by the link 32 and barrel cam 34. The needle is fixed in a bar 48 and slides vertically in a horizontally moving slide 49 operated by links 51 and 490 operated in turn by a roll and cam on the main shaft. Specification 205,242 is referred to.
Patent GB-779185-A (GB)
Title: A reversing switch for machine-tool driving motors
IPC: B23Q16/00
Filed: 1955-11-15
Abstract: 779,185. Grinding. AMICI, F., AMICI, F., and AMICI, G. Nov. 15, 1955 [Nov. 20, 1954];, No. 32637/55. Class 60 [Also in Groups. XXII and XXXVII] A reversing switch for the motor of a: machine tool, e.g. a grinder, comprises a movable contact-carrying member and a movable link pivoted in recesses on opposite sides of a plate and joined by a tension spring, the movable link being operable by the machine tool to actuate the contacts. Moving contacts 11, 12 are carried by a lever 10 pivoted in a recess 9 in a plate 2. A link 13 is connected to lever 10 by a spring 14 and is pivoted in a recess 8, fixed contacts 5, 6 being arranged on either side of the lever 10. The feed mechanism of the tool engages.a spring- returned arm 15 which carries a member 17 co-operating with the link 13 on movement to the right to actuate the switch. On return movement of arm 15 by spring 23 a projection 16 restores the switch. The part 17 is adjustable along the arm 15 by a screw 18 and carries a pointer 20 co-operating with a scale 21.
Patent GB-209907-A (GB)
Title: Improvements in means for greasing dough
IPC: A21B5/08
Filed: 1922-11-30
Abstract: 209,907. Cartledge, P. Nov. 30, 1922. Rolling-machines. - A machine for greasing dough-lumps comprises a casing A, containing an endless conveyer c which feeds the lumps towards a sloping board e in an adjacent casing C, a vertically adjustable rolling- board d positioned above the conveyer c, and a layer or pad of grease-saturated material situated at the bottom of the casing A, over which the lumps are rolled, by the conveyer, to the discharge end of the machine. Conveyer-tensioning screws K and brackets K<2> are secured to the casing A and the pressure board is adjusted by screws h<3> carried by brackets h'.
Patent GB-798428-A (GB)
Title: Improvements in and relating to centrifugal clutches
IPC: F16D43/18
Filed: 1956-10-26
Abstract: 798,428. Centrifugal clutches. FICHTEL & SACHS AKT.-GES. Oct. 26, 1956 [Nov. 22, 1955], No. 32788/56. Class 80 (2). In a centrifugal friction clutch the driving shaft is rigid with a cage 12 carrying a plurality of weights 15 which normally rest on the cage but are urged into driving engagement with a driven drum 13 by centrifugal force. The weights 15 may have facings of friction material and are urged against the surface of the cage 12 by coil springs 17. A leaf spring 18 having a guiding piece 23 is riveted to the cage at 19 adjacent each weight and is secured to the weight by a bolt 20 and distance piece 22 passing through a hole 21. The cage may be cylindrical or polygonal and the leaf springs may be initially flat or curved.
Patent GB-1352778-A (GB)
Title: Method and device for measuring the thickness of a layer
IPC: B29C48/92
Filed: 1971-04-19
Abstract: 1352778 Measuring thickness of layers electrically B ZUMBACH [trading as ZUMBACH ELECTRONIC-AUTOMATIC 19 April 1971 [11 March 1970] 32829/73 Divided out of 1352777 Heading G1N The description is as described in Specification 1352777 but the claims are directed to the construction of the measuring head which enables measurements of the thickness of dielectric layers on elongate metallic objects to be made independant of the precise positioning of the object with respect to the measuring head.
Patent GB-1499036-A (GB)
Title: Slide projector
IPC: G03B23/04
Filed: 1975-08-06
Abstract: 1499036 Slide projectors EASTMAN KODAK CO 6 Aug 1975 [6 Aug 1974] 32861/75 Heading G2J A slide tray transport mechanism comprises a slider 19 which moves rectilinearly into a position X between two pins 23 on the tray and then, depending on the position of a pin 2d which is engaged by either surface 19c or surface 19d of slider 19, pivots either into position Y to advance the tray or into position Z to reverse it; a single solenoid 1 being used both to control the position of the pin 2d and to control the coupling of the slider 19 to a drive motor 33. Forward tray movement. Switch 24, Fig. 6, is pressed to energize solenoid 1 which pivots a lever 2 in direction A to free a bell crank lever 5. This releases a coupling lever 7 which engages teeth 10a of a wheel 10 continuously driven by motor 33. Lever 7 is attached to a cam wheel 8, Fig. 6, so the latter starts to rotate with the result that: (a) a cam 8b opens switch 11a so that solenoid 1 is de-energized and levers 2 and 5 are returned; thus pin 2d on lever 2 lies in the path of surface 19c (b) a cam (8a) Fig. I (not shown) pivots a transport lever 14 which moves a rod 16 coupled to slider 19. Slider 19 thus moves rectilinearly to position X and then, when surface 19c engages pin 2d, pivots to position Y to advance the magazine. When cam wheel 8 has completed one revolution, crank 5 lifts coupling lever 7 out of teeth 10a, and the mechanism returns to its original state. Reverse tray movement. Switch 25, Fig. 6, is pressed to energize solenoid 1, and the above sequence of events is repeated except that cam 8c delays opening switch 11b to de-energize the solenoid 1, so that lever 2 is held by the solenoid in a position in which pin 2d is engaged by surface 19d. Slider 19 thus pivots to position Z to reverse the magazine. Manual movement of tray. Switch 26 is pressed to energize solenoid 1 as before and also to shift a lever 27 and a slider 28 into operative positions with the result that: (a) Slider 28 pivots rod 16 so that a slot therein is aligned with transport lever 14. Movement of lever 14 is thus not transmitted to rod 16 and so slider 19 is inoperative. (b) Lever 27 lifts coupling lever 7 out of teeth 10a after half a revolution of cam wheel 8 to disconnect wheel 8 from drive wheel 10. The tray can now be manually rotated to a selected position. When switch 26 is released, coupling lever 7 drops back into teeth 10a and cam wheel 8 completes its revolution.
Patent GB-883857-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/04
Filed: 1960-09-24
Abstract: 883,857. Golf-clubs. - WALTON, J. Sept. 24, 1960, No. 32896/60. Class 132(2) To prevent damage to the ball due to a mishit, the top and/or the bottom edges of the striking face are fitted with resilient strips 8, 9 secured in place either by adhesive or, as shown, by the overlapping edges of removable striking and sole plates 7, 13 respectively.
Patent GB-1482469-A (GB)
Title: Connector plug
IPC: H01J29/92
Filed: 1974-07-25
Abstract: 1482469 Two-part coupling ERNST ROEDERSTEIN SPEZIALFABRIK FUR KONDENSATOREN GmbH 25 July 1974 [1 Aug 1973 17 Jan 1974] 32915/74 Heading H2E A connector plug for a cable 7 comprises a flexible moulded plastics cup 1 which is substantially free from undercutting and a moulded plastics elongated cable housing including a contact supporting part 3 for a contact member 4 which is provided inside the cup, and a cable support 5 extending at an acute angle to the cup axis, the cup having a passage orifice through which the cable housing passes. The passage opening may be adjacent the base (apex) of the cup with the upper and lower edges being laterally offset (Fig. 6, not shown) and additional strengthening walls (32, 33) may also be provided. The cable support 5 contains resistors 8 moulded in a resin 14 and enclosed in a shrunk-on tube 15. In other embodiments (Figs. 10, 11, not shown) the cup is clamped between a cap (51) and the part 3, the cable support is open on its lower side adjacent the open end of the cup and the part 3 is formed integrally with the cable support.
Patent GB-488353-A (GB)
Title: Rear wheel springing for motor cycles
IPC: B62K25/10
Filed: 1937-11-29
Abstract: 488,353. Spring frames for motorcycles. BAYERISCHE MOTEREN WERKE AKT.-GES. Nov. 29, 1937, Nos. 32943 and 32944. Convention dates, May 7 and May 21. [Class 136 (iii)] In a rear wheel spring suspension for motorcycles, sleeves on either side, connected together by a knock-out spindle forming the wheel axle, are slidably mounted on the outsides of substantially vertical guide tubes under the control of springs surrounding such tubes, and the guide tubes are detachably connected to the rear ends of the cycle frame, either directly or by means of a rigid yoke, and are adapted to receive detachable fluid shock-absorbers to supplement the action of the springs when desired. A fixed tube 1 is secured on each side to the rear end of the cycle frame, either directly or by means of a bracket 12 bolted thereto, and forms a guide for a sliding sleeve 2 provided with an extension 3 having a bore 4 to receive a removable spindle, which connects the two sleeves 2 rigidly together and forms the axle for the rear wheel. A spring 5 is engaged by its upper and lower coils respectively in grooves in a collar 6 and in the sleeve 2, so that it acts as a compression and tension spring. At the lower end of the tube 1 is a rebound spring 7 or a rubber buffer. Telescopic protecting-sleeves 8, 9, 10, 11 prevent the entry of dust &c. The tube 1 may contain a removable fluid shock-absorber comprising a sliding member 13 secured to the sleeve 2 by a screw 14 passing through a longitudinal slot in the tube 1, the sliding member 13 being provided with a spring-pressed non-return valve 18 and restricted orifices for the passage of oil &c. therethrough. The sliding sleeve 2 may be formed integrally with the cover of the axle driving casing, or with the casing itself, the parts being suitably strengthened.
Patent GB-415292-A (GB)
Title: Improvements in and in the manufacture of squeezing or expressing bowls, rollers andsuch like
Filed: 1933-11-25
Abstract: Rollers are made of discs, cakes, or rings of wood pulp, wood shavings, wood wool, wood chippings, sawdust, coconut fibre, cotton fibre, jute fibre, coir fibre &c., which are impregnated or soaked in a latex solution, pressed, dried, and vulcanized. The discs &c. are threaded on a shaft and compressed endways.  A suitable solution contains latex, zinc oxide, sulphur, and Trimene Base.  Specification 398,362, [Group VIII], is referred to.
Patent GB-1379646-A (GB)
Title: Battery tester
IPC: G01R31/36
Filed: 1972-07-14
Abstract: 1379646 Battery tester W G SKUTCH JNR 14 July 1972 [25 Aug 1971] 33006/72 Heading G1U A battery 23, Fig. 4, which can be of any size, is tested by pressing a bulb 17 down upon its upper terminal, the bulb being mounted in a holder 13, 16, Figs. 1 and 4, that slides in a pillar 12-against a spring 18.
Patent GB-466502-A (GB)
Title: Improvements in or relating to rake attachments for lawn mowers
IPC: A01D43/02
Filed: 1935-11-28
Abstract: 466,502. Lawn - mowers. WESCOTT, A. A. Nov. 28, 1935, No. 33021. [Class 6 (ii)] Rakes for raising creeping grasses in front of lawn-mowers are positioned by a frame and supported by brackets constructed so that they may be attached to different parts of mowers, or to mowers of different make, without the angularity of the rake prongs being altered substantially. The rake comprises a cross-bar 26 carried by end brackets 27 and supporting tines 28 and a rigid frame 30, through closed or open slots in which the tines 28 pass. The tines end in spring loops 32 which snap into grooves in the bar 26. The upturned ends of the frame 30 are slotted to fit over the squared ends of the bar 26. A strap 40 limits forward movement of the spring tines and a skirt or flange 39 limits rearward movement of the upper parts of the tines while allowing the spring lower ends to yield further. The brackets 27 have movable damping pieces 49 and bolts 50 so that they may be clamped adjustably on a tie-rod 21 or on the axle 20. In the position shown in Fig. 2, the squared ends of the cross-bar 26 fit into vertical slots in the brackets 27 being secured by pins 52. When the brackets are clamped on the axle 20 they are inclined upward forwardly and the ends of the bar 26 are fitted into the inclined slots 46 so that the tines remain substantially vertical.