baber/WOPTO huggingface dataset:
Patent GB-1155037-A (GB)
Title: Salts of Tetracycline Antibiotics
Inventor: VAZQUEZ CONRADO FOLCH
IPC: C07C/
Filed: 1966-07-08
Abstract: 1,155,037. Tetracycline antibiotic salts. C. F. VOZQUEZ. 8 July, 1966 [8 July, 1965], No. 30878/66. Heading C2A. The invention comprises a salt of a tetracycline antibiotic with an alkyl or alkenyl acid ester wherein the alkyl or alkenyl group contains from 14 to 18 carbon atoms. The compounds are prepared by reacting a tetracycline antibiotic or a salt thereof, with the appropriate acid ester or salt thereof. The acid ester may be the acid sulphate, acid tartrate, acid succinate or acid maleate, e.g. sodium cetyl sulphate or sodium stearyl sulphate. The tetracycline may be tetracycline, 5-oxytetracycline 7-chlorotetracycline, 6-dimethyl-7-chlortetracycline, N- [4 - (2 - hydroxyethyl) - 1 - piperazinyl] - methyl tetracycline, N-(pyrrolidinomethyl) tetracycline or N-(L-lysinomethyl) tetracycline. Typical salts are tetracycline cetyl sulphate, tetracycline stearyl sulphate and N-[4-(2-hydroxyethyl)-1- piperazinyl] methyl tetracycline bis-(cetylsulphate). The salts are insoluble in water, soluble in hydroxylated solvents such as aliphatic alcohols and glycols and very stable. A pharmaceutical composition comprises a tetracycline antibiotic salt as above andacarrier, e.g. a glycol or vegetable oil.
Patent GB-537265-A (GB)
Title: Appliances for playing board games
IPC: A63F3/00
Filed: 1939-11-27
Abstract: 537,265. Board games. HOBBS, E. W. Nov. 27, 1939, No. 30880. [Class 132 (ii)] Means for playing a board game comprise a board marked with goals 6 and divided into equal spaces as shown, two sets of distinctively-coloured " men " representing the opposing teams and marked with numbers to indicate the number of spaces through which they may move, and a "ball" 11. The movements of the " men " and " ball " are determined by the throw of dice which indicate the number of " men " that may be moved at each throw and the number of spaces through which the "ball" may be moved. To facilitate movement of the " men " and "ball," the spaces may be numbered along the side and base lines. Reference has been directed by the Comptroller to Specifications 27082/98, [Class 132], 195,201, 249,376, [both in Class 132 (ii)], and 449,539.
Patent GB-911558-A (GB)
Title: High frequency coils for use with thermionic and semi-conductor devices
Inventor: OSBORNE ERNEST GEORGE
IPC: H01F17/04
Filed: 1960-09-08
Abstract: 911,558. Inductors. WEYMOUTH RADIO MANUFACTURING CO. Ltd. Aug. 22, 1961 [Sept. 8, 1960], No. 30942/60. Class 38 (2). An adjustable high-frequency coil comprises a ferrite core 6 attached to an insulating base 5 and carrying. a winding 8 surrounded by a cylindrical ferrite cup 9, the whole being enclosed by a detachable aluminium cover 10 into which is screwed an insulating axially adjustable plug 12 having a flat ferromagnetic disc 14 e.g. of Ferroxdur attached thereto. The ends of the winding 8, which rests on an annular ferrite disc 7, pass through notches (not shown) in the cup 9 to metal pins 16, one or both of which are connected to a capacitor 15. Adjustment of plug 12 varies the gap between members 14 and 9 thus varying the inductance of the coil. In a modification, Fig. 2 (not shown), a ferrite cylinder surrounding the winding is mounted on a boss integral with the base on which is also mounted an insulating cylinder in which screws an insulating plug carrying a short ferrite rod.
Patent GB-449662-A (GB)
Title: Improvements in or relating to signalling systems for giving signal indications on trains controlled magnetically from the track
IPC: B61L3/12
Filed: 1935-11-08
Abstract: 449,662. Actuating signals on trains. VEREINIGTE EISENBAHN - SIGNALWERKE GES., Blockwerk, Siemensstadt, Berlin. Nov. 8, 1935, No. 30977. Convention date, Nov. 20, 1934. [Class 105] Signals are given on a train by permanent and electro magnets on the track magnetically operating armatures of a plurality of receiver relays which control an electric circuit arrangement giving the various signals and the arrangement is such that if any one receiver relay only is operated a danger signal is given. A permanent magnet 1 and two electromagnets 4, 5 energized respectively when the wayside signal is at clear and caution, each actuate an associated magnetic relay 13, 12, 14 constructed as shown in Fig. 2 with an armature 16 polarized by a magnet 15 and asymmetrically arranged between the flux collecting limbs 17, 18 so that normally a contact 121 is closed but when a track magnet is passed the armature is moved to close the contact 122. The signals on the locomotive are controlled by the relays H, F, W which in turn are controlled by the contacts of the magnetic relays 13, 12, 14. The normal state is shown in Fig. 3, the relays H, W being energized and relay F being deenergized, and no signal is showing on the locomotive. With the wayside signal at clear the track electromagnet 4 is energized and in conjunction with the track permanent magnet 1 actuates the magnetic relays 13, 12 which by closing their contacts 132, 122 energize the relay F and so give a clear signal. The opening of the contacts 131, 121 is without effect on the relay H since a contact F1 of the relay F closes to form an alternative feed. The opening of contact 133 is without effect on the relay W since a parallel contact 143 remains closed. After the receipt of a signal the locomotive apparatus is returned to its normal state by briefly energizing re-set windings on the collector limbs 18. With the wayside signal at caution the track electromagnet 5 is energized. Thus the magnetic relays 13, 14 are actuated. The opening of the contacts 133, 143 de-energizes the relay W to give the caution signal. The opening of contacts 131, 141 is without effect on the relay H since a contact W1 closes. With the wayside signal at danger the track permanent magnet 1 acts alone and only the magnetic relay 13 is actuated, its contact 121 opening and so de-energizing the relay H to give the danger signal. If any one magnetic relay only is actuated it will be seen that the relay H in any case becomes de-energized to give a danger signal. The two magnetic relays 12, 14 may be replaced by a form of magnetic relay, (Fig. 5, not shown), with two armatures one or other of which is operated according to the polarity of the magnet on the track. In this case a single track electromagnet of reversible polarity is used with the permanent magnet. The polarizing magnet and armature assembly of the magnetic relays may be contained in an evacuated tube which is inserted between the flux collecting limbs 17, 18.
Patent GB-670562-A (GB)
Title: Improvements in and relating to frequency control systems for electric oscillation generators
IPC: H03L7/06
Filed: 1946-10-17
Abstract: 670,562. Automatic frequency control systems. TAYLOR, F. J. D., and TUCKER, D. G. Oct. 27, 1947 [Oct. 17, 1946], No. 30981/46. Class 38 (iv). [Also in Group XL (c)] Three oscillatory sources of frequencies f 1 ,   f 2 , f 3  are automatically adjusted so that the difference of two high frequencies f 1  and f 2  is maintained equal to a low frequency f 3 , by mixing f 1  and f 2  in a modulator and separating f 1  or f 2  from the resultant, combining this with f 3  in another modulator to produce a component which is zero in the desired frequency relation, and utilizing the component to control the frequency f 1  or f 2 . In the drawing, the frequency f 2  from source 2 is modulated at 4 with the frequency f 1  from source 1. The difference frequency is selected, and combined in the modulator 5 with the frequency f 3  applied from source 3 through a phase-shifter 7. The modulator output which is at or near zero frequency is rectified and applied to a unit 6 controlling the frequency f 1  of the source 1, with the result that the relation f 1  ~f 2 =f 3  is produced and maintained, despite drift in either f 3  or f 2 . The system may be used for the production of a suppressed carrier single side-band signal for testing and measuring purposes in a carrier wave signalling system, as described in Specification 670,563, [Group XXXVI]. For this purpose, a carrier wave is produced by the source 1, and a low-frequency tone by source 3, the source 2 being approximately set at the desired upper or lower side-band frequency.
Patent GB-1223878-A (GB)
Title: Manufacture of lubricating oil with the use of new catalysts
Inventor: BILLON ALAIN
IPC: C10G45/60
Filed: 1968-06-28
Abstract: 1,223,878. Cracking catalysts. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 28 June, 1968 [30 June, 1967], No. 30996/68. Heading B1E. [Also in Division C5] Cracking catalysts are made by incorporating as active ingredient into a carrier, a free metal or an oxide or sulphide of the metal selected from Groups VIA and VIII of the MendelÚef Periodic Table, or mixtures of these metals and metal compounds, the carrier being prepared by suspending a silica or alumina gel in an aqueous phase at a pH value of between 7.5 and 11 so as to obtain particles in the range of from 0.1 to 10Á, introducing an aluminium or silicon compound into the suspension to precipitate an alumina or silica gel onto the already present particles of SiO 2 , or Al 2 O 3  gel thereby coating the latter so as to produce particles of a mixed gel. Preferably the SiO 2 -Al 2 O 3  supports 2-10% of Co or Ni and 10-30% of Mo or W, expressed as oxides. The catalysts may be presulphided before use.
Patent GB-286769-A (GB)
Title: Improvements in or connected with let-off motions for weaving looms
IPC: D03D49/06
Filed: 1926-12-07
Abstract: 286,769. Toyoda, K.Dec. 7, 1926. Warps, tensioning and guiding. - The stud 4 about which the back rest 3 vibrates has fixed thereto an arm 5 carrying a vertical link 6 connected to a lever 7 pivoted on a pin 8 and furnished with an inclined arm carrying a weight 10. As the warp beam empties, the arm 5 rises, the lever 7 rocks, and, as shown in Fig. 4, the movement of the weight 10 tending to turn the lever 7 and lower the arm 5 increases to compensate for the increasing moment of the forces acting on the rest 3 to turn it about the stud 4 and raise the arm 5. A weight 5<B> is adjusted on a toothed arm 5<A> on the stud 4 to vary the warp tension. Locking the back rest at the beat up. A brake 27 on the arm 5 co-operates with a brake shoe 28 on a spring-controlled rocker arm 29, whereby the back rest is held steady at the beat-up, a cam 32 on the crank shaft acting on the arm 29 so as to release the arm 5 and the back rest for free vibration at other times. Letting-off warps. - Positive let-off motions controlled by the back rest movements. The arm 5 carries a vertical rod 11 connected to a rod 12 having bent ends fitting respectively in a slot 13 in an operating rod 23 fixed to the slay sword 15 and in a slot 14 in an operating lever 24 pivoted on a shaft 16 and carrying a pawl engaging a ratchet wheel on the shaft 16, which rotates the warp beam 2 through bevel and worm gearing. The rod 12 carries a weight 26. As the warp beam empties, and the arm 5 rises, the rod 11 raises the rod 12 until its rear end reaches an adjustable stop 14<11> after which the front end rises in the slot 13, both movements increasing the amount of movement given to the operating lever 24 and the rate of movement of the warp beam.
Patent GB-790117-A (GB)
Title: Improvements in or relating to refractory coatings and binders for metals
Inventor: ARCHDALE ROBERT WILLIAM
IPC: C23C24/00
Filed: 1954-10-27
Abstract: Paste-like compositions for applying to or between metal parts comprise an aqueous solution containing at least 10 grams of acid phosphoric binder per 100 mls. solution and sufficient chromic acid-action inhibitor to produce maximum inhibition on metals, and sufficient powdered refractory filler, principally silica, to form a paste of desired consistency.  Up to 20 per cent of the filler may be a suspension-promoting substance, e.g., titania, zirconia or clay; and/or a pigment, e.g., titania or chromium sesquioxide. Binders specified are orthophosphoric acid and mono aluminium and monomagnesium phosphate, whilst inhibitors are chromic anhydride, alkali metal chromate or dichromate.
Patent GB-618095-A (GB)
Title: Improvements in or relating to locomotive and like steam boilers
IPC: F22B13/06
Filed: 1946-12-11
Abstract: 618,095. Multitubular steam boilers. GOULD, J. R. Dec. 11, 1946. No. 31068. [Class 123(ii)] A single-pass return-tube locomotive, etc., boiler comprises one 'or more cylindrical, preferably corrugated, fireboxes 20 which extend axially through the boiler shell 2b between tube-plates 21, 25 defining front and rear smoke-boxes 24, 26, each firebox opening into a combustion chamber 20a in the smoke-box 26 and the axes of the fireboxes being located substantially in a horizontal plane through the centre of the shell 2b and a plurality of fire-tubes 22 which lead from the one smoke-box 24 to the other 26 and are located mainly below said fireboxes. The flanges 14a of the fireboxes are so shaped and dimensioned as to permit easy removal of the latter from the tube-plates, and the chambers 20a are firebrick lined and fitted with one or more fuel injectors 27. Superheater elements 23 may be located in the front smoke-box or within enlarged firetubes, and a funnel, not shown, is mounted upon the rear smoke-box. In a modification shorter fireboxes are employed, the ends thereof remote from the chambers 20a being closed by tube-plates which are connected to the tube-plate 21 by supplementary fire-tubes.
Patent GB-414640-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1932-11-04
Abstract: 414,640. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., RICKS, F., ELLIOTT, H. E., and CHOICE, F. C., Belgrave Road, Leicester. Nov. 4, 1932, No. 31075. [Class 112.] A thread tension device located at the rear of a sewing machine is adjusted to vary the tension by a handwheel at the front of the machine, the setting being indicated on a scale. The thread passes round a groove formed between the teeth of discs 3, 4 which are clamped between friction washers 7, 8. The washers are pressed together by a spring 9, the tension of which is set by the hand-wheel. In a modification the tension of the thread during the stitch setting rotates a disc 34 and shafts 35, 59 against a spring 64 which is adjusted by the handwheel. The disc 34 is mounted on the shaft 35 which is coupled to the shaft 59 by a clutch 37, 57. On the termination of the stitch setting a camactuated clutch ring 38 disengages the sliding clutch cone 37 and locks the shaft 35 and the disc 34 until the loop is drawn through the work. The shaft 59 returns under the action of the spring 64, its movement being limited by a spring plunger 75. To overcome inertia, the shaft 59 is given an initial movement by a cam actuated segmental gear. Take-ups.-A pin 91 engages an adjustable block 90 on the auxiliary take-up during the upward movement of the main take-up and draws the additional thread which was drawn by the needle in the machine described in Specification 28985/10, [Class 112]. At the end of its downward movement the auxiliary take-up, engages a spring pressed arm 92 which gives additional spring pressure when the needle is drawing a loop through the work. Specifications 350,444 and 354,314 also are referred to.
Patent GB-1537200-A (GB)
Title: Print character selecting mechanism
IPC: B41J7/48
Filed: 1977-07-25
Abstract: 1537200 Selective printing SHINSHU SEIKI KK & SUWA SEIKOSHA KK 25 July 1977 [27 July 1976 28 Jan 1977] 31109/77 Heading B6F A print character selection mechanism comprises a pawl 22 for selectively preventing movement of a character member 2; and a movable member 20 which has an iron core 21, which actuates the pawl 22 and which has one position defined by a permanent magnet 25 and is acted upon by an electromagnetic coil 29 to be moved to a second position (the printing position). A mechanical reset cam 31 moves member 20 back to the first position after printing on paper 16 by pressure from platen 14. In other embodiments the member 20 may have two cores and both may be acted on by the magnet or by electromagnetic coils (Figs. 4-6, not shown).
Patent GB-189127-A (GB)
Title: Improvements in surgical drainage appliances
IPC: A61M27/00
Filed: 1922-11-14
Abstract: 189,127. Hantcher, M. H. Nov. 14, 1921, [Convention date]. Drainage appliances.-Surgical drainage appliances acting by capillarity are made of indiarubber and formed on their peripheries with a series of acuteangled longitudinal grooves A. In some cases a central canal E is also formed through the appliance. Specification 105,038 is referred to.
Patent GB-520656-A (GB)
Title: Improvements relating to netball posts
IPC: A63B71/02
Filed: 1938-10-28
Abstract: 520,656. Posts. DICKINSON, R., [trading as DICKINSON & SONS, R.] Oct. 28, 1938, No. 31165. [Class 45] [Also in Group XV] A telescopic net-ball post is detachably secured, as by a thumb screw f, to a cross-shaped base of strip metal or to a socket F clamped therein.
Patent GB-1118526-A (GB)
Title: Improvements in sprinklers for fixed fire installations
Inventor: COASBY ROGER
IPC: A62C37/14
Filed: 1966-07-12
Abstract: 1,118,526. Sprinkler heads. GEORGE ANGUS & CO. Ltd. 18 May, 1967 [12 July. 1966], No. 31184/66. Heading A5A. A sprinkler head of the type comprising a frame 10, a nozzle 11 at the upper end of the frame for connection to a water pipe, a deflector plate 14 below the nozzle, and a valve 17 normally held in position to close the nozzle by a temperature-sensitive frangible bulb 16, is characterised in that the nozzle has a flat seat 13 for the valve, and the valve carries in a recess therein a resilient sealing ring 19 of plastics material e.g. polytetrafluoroethylene which forms a seal against the flat seat on the nozzle. Consequently the valve may be brass instead of copper. The valve may carry an additional resilient ring (21) forming a seat for the upper end of the bulb.
Patent GB-231429-A (GB)
Title: Improvements in and relating to measuring instruments or gauges
IPC: G01L5/14
Filed: 1924-12-30
Abstract: 231,429. Krupp Akt.-Ges., F. March 29, 1924, [Convention date]. Indicating.-In a measuring instrument in which the indicating pointer or lever rests on knife edges the knife edges are adapted to be adjusted in the direction of the longitudinal axis of the pointer as well as laterally, the normal plane of the knife edges being at right angles to the said axis. The member A carrying the pointer a<6> supports a knife edge bearing B consisting of two parts b<1>, b<2> engaged by the end of the plunger C; the parts b<1>, b<2> are connected by a bolt b<3> having a nut b<4> with a collar engaging recesses in the member A and abutting against the cross piece a<1> whereby the lateral adjustment with respect to a second knife edge bearing D is effected. The bearing D consists of a forked member d<1> embracing the member A and two plates d<3>, d<3> screwed to the ends of the fork. A bolt d<4> mounted on the member A supports the forked member d<1> and an extension of the cross piece thereof is provided with a screw d<5> for adjusting the height of the bearing D with respect to the plane containing the axis of the bolt d<4> and the bearing B. The bearing D is engaged by the blades of a member E secured to a carrier F mounted in the casing H of the instrument.
Patent GB-245926-A (GB)
Title: Improvements in plugs and sockets for inductance coils and the like
IPC: H01F27/00
Filed: 1924-12-30
Abstract: 245,926. Lissen, Ltd., and Richardson, R. P. Dec. 30, 1924. Plug couplings for inductance coils of wireless apparatus. The insulating block 1, in which the pin and socket members 2, 3 are embedded, is cut away or perforated as at 4, 8 leaving bridging pieces 5, 6, with the object of reducing capacity effects. The perforations may be transverse to or parallel with the members 2, 3 and the openings may be flared and the ends of the block rounded.
Patent GB-703831-A (GB)
Title: Gas cut-off device
IPC: F16K17/00
Filed: 1952-12-10
Abstract: 703,831. Safety cut-off valves. McCULLACH, A. A. Dec. 10, 1952, No. 31336/52. Addition to 644,629. Class 135 An improved form of the safety cut-off valve for gas appliances described in the parent Specification comprises a closure member 3 carried by a diaphragm 6 dividing the valve casing 5 into an upper compartment and a lower compartment gas inlet and outlet connections 1, 2 to the lower compartment, a stem 7 supported by the diaphragm and carrying an armature 8 adapted to co-operate with an annular magnet 9 in the upper part of the valve casing when the valve closes, and a restricted orifice or weep hole 11 between the inlet and outlet connections. After failure of the gas pressure on the diaphragm 6, the valve is held closed by the magnet 9 which is carried by an annular member 10 screwed into the upper part of the valve casing. When the appliance or all of them have been cut off and the gas supply pressure restored, pressure leaking through the weep hole builds up under the diaphragm 6 and re-opens the valve. A filter cartridge 12 is arranged in front of the weep hole.
Patent GB-696237-A (GB)
Title: Mixed poly-aryloxy aryl silanes
IPC: C07F7/18
Filed: 1950-12-27
Abstract: The invention comprises a mixture of polyaryloxy aryl silanes as obtained by reacting a monoaryl silicon trihalide or a diaryl silicon dihalide with three or two mols. respectively of a mixture of different phenols.  The mixture may consist of diaryloxy diphenyl silanes or triaryloxy monophenyl silanes, or phenyl p-cresyl esters, phenyl m- and p-cresyl esters, phenyl xylenyl esters or phenyl naphthyl esters of diphenylsilane diol.  The aryl group or groups can be phenyl, cresyl or xylyl, and the aryloxy groups can be phenoxy, methylphenoxy, xylyloxy or naphthoxy.  In the examples a mixture of esters is prepared by adding phenol and p-cresol to diphenyldichlorosilane and to monophenyltrichlorosilane.  The mixture of esters obtained by adding phenol and commercial cresol (a mixture of m- and p-cresol) to diphenyldichlorosilane is also referred to.
Patent GB-901011-A (GB)
Title: Improvements relating to radar receiving apparatus
IPC: G01S7/22
Filed: 1958-10-01
Abstract: 901,011. Radar. PINTSCH ELECTRO G.m.b.H. Oct. 1, 1958 [Oct. 1, 1957], No. 31406/58. Drawings to Specification. Class 40 (7). In a radar apparatus means are provided for displaying signals corresponding to moving targets either with or without signals corresponding to fixed targets. From the received signals are derived a first set of signals having constant amplitude and corresponding to all target echoes, and a second set of signals which correspond to moving targets only. By combining these first and second signals a third set of signals is obtained, consisting of fixed target signals of one amplitude and moving target signals of a second and larger amplitude. The third signals are passed to a variable bottomclipping circuit before being displayed and by varying the clipping level moving targets are displayed with or without fixed targets. Frequency band compression by known means may be used before the signals reach the clipping circuit.
Patent GB-1328731-A (GB)
Title: Process for crosslinking hydrophilic colloids
IPC: C09H7/00
Filed: 1971-07-05
Abstract: 1328731 Hardening polyvinyl alcohol; gelatine CIBA-GEIGY AG 5 July 1971 [7 July 1970] 31438/71 Headings C3H and C3P [Also in Division G2] Photographic hydrophilic colloids containing amino, imino and/or OH groups, e.g. gelatine or polyvinyl alcohol, are hardened by incorporating into the colloid a compound of the formula wherein A is an aldehyde group or a functionally modified aldehyde group especially an azomethine, hydrate or hemiacetal group, and E(+) is a quaternary ammonium group or a phosphonium or sulphonium group. The hardeners may be added in solution to gelatine, e.g. to gelatine silver halide emulsions. Examples are given of hardening gelatine, and in Example 5 polyvinyl alcohol is hardened with 2-triethylammonium acrolein.