baber/WOPTO huggingface dataset:
Patent GB-839353-A (GB)
Title: Aliphatic xanthic esters and methods of production thereof
Inventor: DEWAR MICHAEL JAMES STEUART
IPC: C07C329/00
Filed: 1955-03-29
Abstract: The invention comprises aliphatic xanthic esters having one of the following general formulae: (1) ROCS.SR, where each R is an alkyl group and at least one of them is an n alkyl group of at least 10 carbon atoms; or  (2) RO-CS.S(CH2)n-S.SC-OR;  (3) RS-CS.O(CH2)n-S.SC-OR;  (4) RS-CO.(CH2)n-S.SC-OR; or  (5) RO-CS.S(CH2)n-CO.S(CH2)n-S-CO. (CH2)n-S.SC-OR  wherein R is an alkyl group and n is at least 10, and certain methods for their preparation.  The compounds of (1) may be prepared by refluxing 1 mol. of an alkali metal alkyl xanthate with one mol. of an alkyl halide in alcoholic solution, at least one of the alkyl groups present being an n-alkyl group of at least 10 carbon atoms and then ethereally extracting the xanthic ester so formed.  The compounds of (2) may be prepared by refluxing 1 mol. of an a :o -polymethylene dihalide containing at least 10 carbon atoms with 2 mols. of an alkali-metal alkyl xanthate in alcoholic solution and ethereally extracting the resulting xanthic ester.  The compounds of (3) may be prepared by refluxing 2 mols. of an alkyl halide with 1 mol. of an O,O-a :o -polymethylene di-alkali metal xanthate containing at least 10 carbon atoms in alcoholic solution and ethereally extracting the resulting xanthic ester.  The compounds (4) may be prepared by refluxing 1 mol. of an alkali metal alkyl xanthate with 1 mol. of an alkyl o -halo polymethylene thiolate containing at least 10 carbon atoms in the polymethylene group, in alcoholic solution and ethereally extracting the resulting xanthic ester.  The compounds (5) may be prepared by refluxing 2 mols. of an alkali metal alkyl xanthate with 1 mol. of a polymethylene bis o -halopolymethylene thiolate containing at least 10 carbon atoms in each polymethylene group, in alcoholic solution and ethereally extracting the resulting xanthic ester.  Examples describe the preparation by the above methods of (1) S-ethyl O-octadecyl xanthate, O,S-di-octadecyl xanthate and O-ethyl S-octadecyl xanthate; (2) di-O-ethyl-S,S-1,10-decane dixanthate and di-O-octadecyl-S,S-1,10-decane dixanthate; (3) di-S-ethyl O,O-1,10-decane dixanthate and di-S-octadecyl O,O-1,10-decane dixanthate; (4) dodecyl-S.OC(CH2)10S.SC.OC2H5 and dodecyl-S.OC(CH2)10S.SC.O-octadecyl; and (5) decylene bis - [11 - ethoxy - (thio - carbonyl) - thio - undecane thiolate] and decylene bis-[11-octadecyloxy-(thiocarbonyl-thio)-undecane thiolate].  The xanthic esters may be used as promoters of dropwise condensation of steam as described in Specification 839,351.
Patent GB-1312968-A (GB)
Title: Catalyst composition for butadiene polymerisation
IPC: C08F136/06
Filed: 1970-07-21
Abstract: 1312968 Catalyst for butadiene polymerization JAPANESE GEON CO Ltd 21 July 1970 [22 July 1969] 35325/70 Heading C3P A catalyst for the polymerization of butadiene to give a polymer of substantially cis-1,4 configuration comprises a hydrocarbyl-aluminium fluoride, a compound of cobalt, and water. Preferably the mole ratio Al/Co is 1 to 500, and H 2 O/Al is not greater than 2 for aluminium compounds of formula AlRR<SP>1</SP>F and not greater than 1 for AlRF 2 . The molecular weight of the product may be controlled by varying the amount of the aluminium compound used and the molecular weight distribution by varying the Al/Co ratio, larger amounts of cobalt increasing the proportion of very high molecular weight components. The examples describe the polymerization of butadiene in benzene with catalyst compositions comprising diethylaluminium fluoride or ethylaluminium difluoride, cobalt octanoate and water.
Patent GB-304010-A (GB)
Title: Eye testing devices
IPC: A61B3/02
Filed: 1927-12-30
Abstract: 304,010. Ritholz, B. D. Dec. 30, 1927. Sight-testing apparatus.-An eye-testing device of the kind in which the chart member 15 is mounted on a flat bar 6, the margins of which are gripped by flanges 16 on the chart member 15, is provided with an eye piece 8 comprising a metal strip bent at its lower end to form a clamp for securing it to the bar 6. An opening 11 in the eye piece 8 carries a lens 13 retained in position by tongues 14 pressed out of the plate 8 as shown.
Patent GB-1151706-A (GB)
Title: Fiber Processing System
IPC: D01G23/08
Filed: 1966-08-08
Abstract: 1,151,706. Feeding fibres. CURLATOR CORP. 8 Aug., 1966 [27 Aug., 1965], No. 35462/66. Heading D1N. A number of fibre processing machines e.g. carding engines 11, 12 are supplied from a main duct 14 via by-pass conduits 16, 17 by air streams carrying the fibres. A rotatable foraminous condenser 20 collects fibres passing down each by-pass conduit while allowing the air to return to the duct 14. Means such as a rotary doffer 26 strips the fibres from each condenser and allows them to pass to the feeding unit of each machine. At the entrance to, each by-pass conduit there is means such as a valve 75 to stop the airstream flowing along the conduit. In the form shown the means comprises a valve 75 which blocks duct 16 once a sensor 94 indicates that a reserve box 30 for the machine is filled but moves to block duct 14 and direct fibres down duct 16 when a lower sensor 92 indicates that the fibres level has fallen therebelow. Fibres from reserve box 30 are fed by rollers 46 into a conveyor 40, into an apron 42, over an air bridge 50 into a condenser 52 where they pass over rollers 54, under a roller 56 and onto a feed plate 58, where they pass to the lickerin 62. The fibres on conveyor 40 displace an arm 38 which can operate a switch to stop rollers 46 should the quantity of fibres on conveyor 40 become too great. When all reserve boxes are filled the opener which feeds duct 14 (see Fig. 1, not shown) may be switched off and remain so until the next signal from one of the sensors 92. In Fig. 5, not shown, a circuit is shown in which cam operated timer switches activate the upper sensors during fixed periods only. In this case the lower level sensor 92 is omitted. In the embodiment of Figs. 6-10, not shown, the main duct has an outer run (214) and a return run (232) leading back to the opener (15) which supplies the duct. The by-pass conduit for each machine runs from the outgoing duct through the appropriate condenser and into the return duct. The baffle (228) for cutting off the flow through each by-pass conduit is in the section (216) leading to the return duct. Thus several machines can be fed simultaneously from the main duct and the speed of supply of the opener is varied in accordance with the number of machines being supplied.
Patent GB-876575-A (GB)
Title: Improvements in and relating to skirt, coat or like hangers
IPC: A47G25/24
Filed: 1957-11-14
Abstract: 876,575. Coat &c. hangers; skirt hangers. HUNTER, E. J. Nov. 4, 1958 [Nov. 14, 1957], No. 35515/57. Class 52(5). A skirt &c. hanger comprises a bowed spring 1, inserted within and tensioning the waistband, and a rigid bar 2 mounted on the suspension hook 8 for adjustment of the gap between the bar and the spring to vary the curvature and stiffness of the spring to suit different sizes of waist band. The spring slides in loops 3, 4 at the ends of the bar 2 and is pressed towards the bar by a pin engaging a selected aperture 9 in the rod 5 which passes through slots in the spring and bar and has shoulders 6, 7 either of which can be used as an abutment . Close approximation of the spring and bar renders the spring rigid enough to support a coat. Corrugated gripping surfaces are provided on plastic knobs 10 and, in a modification, the bar 2 and rod 5 are integral, the hook 8 being detachable.
Patent GB-1194613-A (GB)
Title: Improvements in Read Amplifier for Use with a Magnetic Memory
IPC: H03K5/02
Filed: 1968-07-25
Abstract: 1,194,613. Magnetic storage arrangements. GENERAL ELECTRIC CO. 25 July, 1968 [28 July, 1967], No. 35535/68. Heading H3B. A read amplifier for a word organized, twocore-per-bit, magnetic thin film store comprises two long-tailed transistor pairs 20, 22 and 21, 23 in a normally balanced network 11, the sense lines 49, 50 and 61, 62 from two separate storage locations each consisting of two sites 54, 55 and 66, 67 being connected to the bases of respective transistor pairs together with the secondary windings 75, 76 of a common digit driver 12. The transistors 20, 21 and 22, 23, one from each pair, are connected in two parallel circuits supplied through respective resistors 31, 32 from a common potential source 30; the voltage developed across each resistor being applied through an individual output terminal 47, 48 to a differential amplifier 18. A binary digit is written into a storage location by applying oppositely directed pulses to its two sense lines from the digit driver, and at the same time causing a word driver 14 or 15 to pulse the associated word line 52 or 64. Each storage location consists of two anisotropic thin film sites 54, 55 or 66, 67 in which a binary digit is recorded by establishing oppositely-oriented remanent fields directed either towards or away from each other. As a write operation applies pulses to both transistor pairs in such a way that two transistors 20, 23 react in the opposite sense to the other two, 21, 22, a like change of current occurs in both resistors 31, 32 with a corresponding like change of voltage at terminals 47, 48. Consequently the differential amplifier 18 does not respond. The same effect is obtained when noise is developed in a pair of sense lines due to capacitive coupling with a pulsed word line. When a storage location such as sites 54, 55 is read out by a word line current I 2 , oppositely directed currents I 5 , I 6  are obtained in the two sense lines, which cause the voltages at terminals 47, 48 to change in opposite respects and the differential amplifier 18 responds. This amplifier consists of a normally-balanced long-tailed transistor pair 84, 85 which is coupled by coaxial lines to final output terminals 98, 99. The sense lines are each terminated at one end by their characteristic impedance 57, 58, 69, 70 and are mismatched at. the other end so that reflections occur. Noise is further suppressed in the arrangement by feedback resistors 38, 44 and 90. In a modification, Fig. 2 (not shown), the potential applied to the pairs of transistors 20-23 at terminal 40 is replaced by separate constant current sources.
Patent GB-173692-A (GB)
Title: Improved ozone generating apparatus
IPC: C01B13/11
Filed: 1920-12-18
Abstract: 173,692. Goedicke, R. Dec. 18, 1920. Gases, treating electrically.-In an ozone generator coaxial electrodes a, band an outer tube f are attached at their upper and lower ends to fittings g, h, one of which subdivides the air supplied into three currents passing respectively between the electrodes, within the inner electrode, and around the outer electrode, the currents reuniting within the other fitting. Ozone is also generated in the inner and outer cooling currents. The air may flow upwards or downwards. As shown, the inner electrode a is enclosed in an annular space between glass &c. tubes c, d and the outer electrode b surrounds a tube e. The electrodes may consist of wire gauze or closely-wound, wire. coils.
Patent GB-785776-A (GB)
Title: Improvements in or relating to apparatus for measuring, checking or dispensing various products such as, for example, fuels
IPC: B67D7/22
Filed: 1955-12-12
Abstract: 785,776. Locks. PANDOZY & FIGLI SOC. r. 1., G. Dec. 12, 1955 [Sept. 15, 1955], No. 35639/55. Class 44 [Also in Group XIX] A machine for issuing tickets on which are printed the price and quantity of fuel delivered from a pump is provided with means for locking the machine and for locking the pump switchgear, the key also being provided with means for setting type discs to print on the ticket a number distinctive of the particular key in use. The key 74, Fig. 8, has vanes 79, 80 and a longitudinal groove 77 which together with a peripheral groove 78 co-operates with a peg 76 to guide the key in its introduction to the lock and prevents its rotation until fully inserted. The internal ends of vanes 79, 80 co-operate with grooves on an axial extension 86 of a. cylinder 83 to turn the latter on rotation of the key. The cylinder 83 has a groove 84 co-operating with a peg 85 so that on rotation it moves, together with an integral shaft 87 laterally in the direction of the arrow withdrawing the end 88 of the shaft 87 from obstructing the lever controlling the main pump switch. A plate 89 has a wedge-shaped extension in engagements with the frontal teeth of a gear 32 and when the latter rotates on commencement of fuel delivery the plate 89 is moved out of engagement with the teeth and its other end moves into a position adjacent the vane 80 to prevent rotation and withdrawal of the key 74 whilst delivery of fuel is taking place. Rotation of the key after insertion causes vane 79 to rotate a disc 20<SP>1</SP> setting the printing discs 20 to a distinctive setting defined bv the position of the step 81 on the vane 79. On completion of delivery disc 20<SP>1</SP> is turned to reset the printing discs 20 and a cam surface 90 restores the plate 89 to a bosition in engagement with the gear 32 thereby freeing the vane 80 so that the key may be rotated and withdrawn. During this rotation cylinder 83 moves axially into its initial position where shaft end 88 locks the machne. In another embodiment, Fig. 16, the key comprises U-shaped frame 201 with printing members 202, 203 and a shaped plate 204 which depress pegs 211, 212, 213 and 214, 215, 216 of a barrel-lock so that the barrel 217 may be rotated in the member 210 by means of a thumbpiece 206. Rotation of the barrel 217 effects rotation and axial translation of the cylinder 83 and shaft 87 as above. The plate 89 co-operates with a dowel 224 to prevent removal of the key during delivery. In the modification shown in Fig. 18, a first series of key-teeth co-operate with pegs 303, 304, 305 to set the distinctive printing type and second series of keyteeth co-operate with pegs 314, 315, 316 to unlock the barrel 306.
Patent GB-1285044-A (GB)
Title: Pneumatic shell structures constructed from synthetic resin films and a method for constructing the same
IPC: E04H15/20
Filed: 1969-07-16
Abstract: 1285044 Seaming non-metallic sheet material; laminates TORAY INDUSTRIES Inc 16 July 1969 [25 July 1968 1 Aug 1968 26 Dec 1968 (2) 20 Jan 1969] 35724/69 Headings B5K and B5N [Also in Division E1] A pneumatic shell structure 1, Fig. 1B, comprises a pair of flexible walls 4, 5 secured to a peripheral frame 3 to enclose an airtight chamber 6, each flexible wall comprising an airtight layer 10, Fig. 1C, innermost of the structure, an outer layer 7 and one or more intermediate layers 8, 9 each composed of long rectangular shaped synthetic resin films with mutually superimposed but non-adhered edges. The innermost layers 10 may be formed of long rectangular shaped films adhered at their superimposed edges 13, whilst the outer layers 7 may also be similarly constructed except that the adhesion between the superimposed edges is optional. When several intermediate layers are provided the films in alternate layers 8, 9 traverse in directions mutually at right angles. The upper composite wall 4 may comprise a film layer containing an ultra-violet ray absorber and/or intercepting agent, and a layer having a surface on which a sputtered metal layer is formed may be provided inside the ultra-violet absorption film layer to protect the structure from heat rays. The structure may comprise internal reinforcements 13, Fig. 3B. The Specification describes numerous arrangements, (Figs. 10 to 17 inclusive) for sealing the walls 4, 5 to the frame to prevent water penetration. In Fig. 10 the watertight seal is provided by the bottom member 35 and top member 37 secured to the wall 4 by adhesive at 38. In Fig. 12 sealed connection to the frame 31 is achieved by fastening member 32 and packings 47a, 47b, 47c. In Fig. 14 the clamping bolt 14 is sealed by an encircling member 54 filled with sealing material 55. In Fig. 16 the securing means is covered by a sealing paint layer 55a selected from acrylic polymer, polyvinyl chloride or epoxy resins. When the outer layer is airtight, means to ventilate the air contained between the componental layers of the walls 4, 5 may be provided, Figs. 6, 7 (not shown). A construction for sealing the corners of the frame is also described, Figs. 20 to 21D inclusive (not shown). The films may be formed preferably of polyethylene terephthalate or hard polyvinyl chloride, or of polythene, polypropylene, polycarbonate or ethylene-vinylacetate copolymer.
Patent GB-493127-A (GB)
Title: Improvements in and relating to electric rectifiers
IPC: H01L25/07
Filed: 1936-12-30
Abstract: 493,127. Asymmetrically conducting resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 30, 1936, No. 35740. Void. Convention date, Dec. 31, 1935. [Class 37] The cells of a rectifier are grouped for heat dissipation, the cooling means being placed at each end of a group. In the example each unit comprises electrodes 1, 3 and semi conductor layers 2, four units are in each group at the ends of which cooling plates 4, 5, 6, are placed. The units are mounted on a bolt 7 and the assembly is built into a frame 10. The plates 4, 5, 6 may be connected to the frame by angle pieces 13, thin insulation being interposed. In a modification the frame and the cooling plates are combined to form U-shaped members between the legs of which the groups of units are fitted, with suitable electrical insulating means interposed such as varnish, thin paper or thin mica.
Patent GB-850587-A (GB)
Title: A method of reducing sliding friction and its application to firearms
IPC: F42B14/02
Filed: 1956-11-22
Abstract: 850,587. Cementation; coating by vapour deposition. ELEKTROPHYSIKALISCHE ANSTALT B. BERGHAUS. Nov. 22, 1956 [Nov. 26, 1955], No. 35775/56. Classes 72 and 82(2) [Also in Group XXI] To form a lubricating layer of gas between a projectile and the inner surface of a gun barrel from which the projectile is fired, the surface of the projectile, at least in the neighbourhood of the driving bands, is enriched with gas-forming substances by means of electric glow discharges, a similar treatment being given to the inner surface of the barrel. The gas-forming substances may be alloyed with the metals of the projectile and gun or may be concentrated in the outermost zones. Suitable substances given include FeO / Fe 2 O 3  / Fe 3 O 4  / Fe 2 N / Fe 2 P / Fe 3 P / FeS / Fe 2 S; CuO / Cu 2 O / Cu 3 N / CuS / C u2 S; CrO / Cr 2 O 3  / CrN / CrO 3 ; Al 2 O 3  / A1N / Al 2 S 3 . From these a substance is chosen having the appropriate decomposition temperature and boiling point for the projectile which is being treated. Metals e.g. zinc, lead, chromium or metalloids may also be used. To treat the projectiles 6 or their driving bands 8, after degreasing and cleaning, the projectiles are placed on resilient metal bolts 5 in a double-walled gas discharge vessel 1. The bolts 5 protrude from a metal plate 3 mounted on insulators 4 and the projectiles extend through openings in a metal member 7, the openings being co-axial with the projectiles so that annular gaps are formed around the driving bands 8. The plate 3 and member 7 are connected by an insulated lead 10 to the negative pole of terminals 11, the positive pole being connected to the vessel 1. Means (not shown) are provided to produce a gaseous atmosphere consisting of 30% N 2  and 70% H 2  at a pressure of 5-10 mm. Hg. and the terminals 11 are connected to an alternating voltage source to obtain a glow discharge. By increasing the pressure and voltage gradually a steady increase in the discharge is obtained as described in Specification 805,163. By this means the metal surfaces of the projectile are freed from foreign matter. The treatment proper is then started by producing a discharge of 400-500 volts between the vessel 1 and the projectiles 6 and element 7. The energy concentration in the gap between the bands 8 and element 7 may be 1-10 Watts/cm<SP>2</SP> surface of the bands, so that the nitrogen is diffused into the driving bands in a short time. Specifications 505,799, 510,404, 510,993, 744,753, 759,694, 785,878, 794,174, 805,164 and 805,165 also are referred to.
Patent GB-1493714-A (GB)
Title: Storage and transport pallet assemblies
IPC: B65D19/02
Filed: 1975-08-29
Abstract: 1493714 Pallets FERRERO GmbH 29 Aug 1975 [2 Sept 1974] 35792/75 Headings B8H and B8C A storage display and transport pallet assembly for firmly holding together individual cargo pieces 8 during transport comprises a base 2 supported on a pallet 1, a displaceable cuff 3 extending up from the side faces of the base 2 and supported on removable pins 5 projecting from said faces and an insert 7 receivable in a recess in the upper surface 6 of the base 2. The cargo pieces are stacked on the base 6 between the cuff 3 and the insert 7 and U-shaped protective walls 9 are inserted between the pieces 8 and the cuffs 3 and extend up to the top of the insert 7, a protective cap 10 then being placed over the cargo and walls 9 in readiness for transportation. For display, the cap 10 and walls 9 are removed and the pins 5 are displaced into the base allowing the cuff to drop down on to the pallet 1, whereby the cargo pieces 8 are open to inspection without being removed from the pallet assembly. The base 2 would normally be secured to the pallet by connecting pieces or adhesive, and in an alternative embodiment the cuff 3 can be selectively positioned at various heights on the base 2.
Patent GB-508538-A (GB)
Title: Improvements in or relating to apparatus for storing and delivering coins
IPC: G07D1/00
Filed: 1937-12-24
Abstract: 508,538. Money-delivering apparatus. CHANGERS, Ltd., CHILDS, W. A., and GEE, G., Dec. 24, 1937, No. 35795. [Class 27] An apparatus for storing and delivering coins for giving change &c. comprises a number of cylindrical magazines for coins of different denominations, each of which consists of a cylinder of hard glass or other transparent material 1, Fig. 3, fixed within a slotted metal sleeve 2 having an open topped cup 4 by which the coins are introduced. The cup has two vertical sides 5, two sloping sides 6, and baffle plate 7 to cause the coins to be correctly stacked. For receiving coins the magazines are supported by the cups 4 in recesses in a counter, the coins being retained therein by a removable slide 10. For giving change, a full magazine is placed in a, socket 11, Figs. 1 and 4, having 'a flange 13 and base plate 12 provided with screws 14 for attachment to a backplate or framework so that one or more sockets-may be used to form the complete coin delivery machine. Each socket has a front slot 15 coinciding with the slot in the sleeve 2 to allow the coins to be visible, and depressible coin ejecting key 18 pivoted in a lug 16. The key is a bell-crank lever 17, 19 connected by a link 20 and rod 21 to a vertical spindle 22 carrying an apertured ejector plate 23 working between the base plate 12 and an apertured plate 28 through which the coins are discharged. An arm 25 on the spindle 22 coacts with a stop 26 to limit the downward movement of the key 18 against the action of a spring 24. A resilient plate 31 prevents two coins from being ejected at a time. If a bent coin becomes jammed in the ejector 23 and cannot pass the plate 31, the latter is allowed to rise by raising a stop plate 34 normally held down by a spring 37 and abutting against a peg 33 on the plate 31. The bottom of each magazine has a tapered end 8 to fit a tapered hole 30 in the base plate 12. A lug 41 on a magazine engages the slot 15 in the socket to prevent the magazine from rotating therein.