baber/WOPTO huggingface dataset:
Patent GB-263845-A (GB)
Title: Manufacture of benzanthrone derivatives
IPC: C09B3/50
Filed: 1926-12-29
Abstract: 263,845. I. G. Farbenindustrie Akt.- Ges. Dec. 30, 1925, [Convention date]. Addition to 248,791. Oxy and alkyloxy-dibenzpyrenequinones.-Bz2- Aroyloxybenzanthrones are treated with acid condensing agents. The oxydibenzpyrenequinones so obtained dye cotton from the vat in reddish-brown shades not fast to acid; by alkylation they yield products which dye in fast yellow shades. According to examples (1) Bz 2-benzoyloxybenzanthrone is heated with a mixture of aluminium and sodium chlorides and the 1-oxy- 3:4:8: 9-dibenzpyrenequinone methylated or ethylated with p-toluenesulphonic methyl or ethyl ester in nitrobenzene; (2) the p-taluic ester of Bz2-oxybenzanthrone is similarly treated and the 1 - oxy-3 : 4-methylbenz - 8: 9-benzpyrenequinone methylated. Bz2-Benzoyl and p-toluoyl-oxybenzanthrones are obtained from Bz2-oxybenzanthrone bv benzoylation by the Schotten-Baumann method, and by heating with p-toluic acid chloride respectively. The Specification as open to inspection under Sect. 91 (3) (a) refers to the treatment with acid condensing agents of substitution products of Bz2- aroyloxybenzanthrones which possess free peripositions in the naphthalene nucleus. This subject-matter does not appear in the Specification as accepted.
Patent GB-1275706-A (GB)
Title: Microtablets for determining the sensitivity of microorganisms to antibiotics and chemotherapeutics
Inventor: IONESCU STOIAN
IPC: A61K9/20
Filed: 1970-07-07
Abstract: 1275706 Determination of the sensitivity of micro organisms to therapeutic substances INSTITUTUL PENTRU CONTROLUL DE STAT AL MEDICAMENTULUI SI CERCETARI FARMACEUTICE 7 July 1970 32860/ 70 Heading BIX [Also in Division A5] Microtablets for testing the sensitivity of microorganisms to therapeutic substances are made by compressing a mixture of the therapeutic substance, a binder, e.g. sodium amyl polyethylene, an irrigating component, e.g. sodium sulphate, and a moisture absorbent, e.g. starch. A number of therapeutic substances are mentioned including numerous named antibiotics, nitrofurantoin and sulphizoxazole.
Patent GB-1440540-A (GB)
Title: Flow-through amperometic measuring system
IPC: C12Q1/54
Filed: 1974-07-25
Abstract: 1440540 Solution concentration determination LEEDS & NORTHRUP CO 25 July 1974 [30 July 1973] 32965/74 Heading G1N The concentration of an electroactive substance in a solution is determined in a cell comprising a measuring electrode, a counter electrode and a reference electrode by measuring the current between measuring electrode and counter electrode necessary to keep constant the potential between measuring arid reference electrode. The apparatus may be used for the determination of glucose solution 10 by continuously converting it to gluconic acid and hydrogen peroxide in enzyme reaction chamber 20 which contains glucose oxidase on glass beads and continuously flowing the converted solution through the cell. Cell construction The counter and reference electrodes are preferably downstream of the measuring electrode 33 which comprises a vitreous carbon cylinder with flow path therethrough. The vitreous carbon is activated by maintaining it 0À7-4À0V positive relative to the reference electrode for 3-4 hr with a current of 10-100ÁA. The gold counter electrode 55 is annular and sandwiched between the two parts 80, 90 of the cell body. The reference electrode is glass 102 with a silver/silver chloride electrode 108, silver chloride electrolyte solution and a liquid junction and ceramic plug 105. Outlet from the cell is via pipe 26 and contact to the measuring electrode is via spring 92 and terminal 96. In an alternative embodiment the measuring and counter electrodes are both vitreous carbon cylinders and the reference electrode has its liquid junction at the edge of the flow-path. Measuring circuit The desired voltage is set up on potentiometer 64 and is fed with the measuring electrode voltage to amplifier 50, the output of which is the countermeasuring electrode current. This current is supplied to amplifier 38 with variable resistive feedback and is measured on meter 42. The tapped voltage on potentiometer 64 is measured by operating ganged switches 48, 60, 36 and reading meter 42 which is suitably calibrated.
Patent GB-503305-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J35/10
Filed: 1938-11-14
Abstract: 503,305. R÷ntgen-ray tubes; induction motors. BRITISH THOMSON-HOUSTON CO.; Ltd. Nov. 14, 1938, No. 33075. Convention date, Nov. 13, 1937. [Class 39 (i)] [Also in Group XXXV] In X-ray tubes of the type having a rotating target, the motor for driving the target is of the induction type and comprises a light cylinder of copper &c. supported by bearings from a stationary shaft and surrounding a stationary body of magnetic material. In the arrangement described, the rotating anode 9 is carried by a sleeve 21 which is mounted on a stationary shaft 12 by means of spaced ballbearings 17'which are preferably made of the alloy described in Specification 489,477, [Group II]. The motor for driving the anode is of the induction'type and consists of a cylinder 20 of copper or other good electrically conducting non-magnetic material, a body 26 of magnetic material of low reluctance keyed to the stationary shaft 12 within the cylinder, and means outside the envelope 1 for producing a rotating magnetic field such as a laminated iron core 23 and a polyphase winding 24. In a modification, the body 26 is supported directly by the metal seal structure at the end of the envelope and carries means for centring the external stator.
Patent GB-734536-A (GB)
Title: Improvements in or relating to synthetic resin coating composition
IPC: C09D167/08
Filed: 1952-12-31
Abstract: In making a composition for coating gas holder and other surfaces by floating the composition on water and moving the surface to be coated down and up past the floating coating material, a mixture comprising, in percentages by weight of the total reactants: (a) 27.7 to 28.3 per cent rosin; (b) 2.1 to 2.3 per cent of a dicarboxylic acid or anhydride thereof, e.g. maleic anhydride; (c) 43.5 per cent of a drying vegetable oil having an iodine value above 190, e.g. linseed oil, and (d) 22 per cent of a heat-processed drying vegetable oil, e.g. "boiled" linseed oil, is heated at 450 DEG  F. for 30 to 45 minutes, and the product is reacted with (e) 4.0 to 4.4 per cent of a polyhydric alcohol, e.g. pentaerythritol, at 585 DEG  F. for 330 to 390 minutes.  The reaction product is cooled to 500 DEG  F. and mixed with a volatile solvent, e.g. mineral spirits, to give a liquid containing 53.5 per cent non-volatile constituents.  Other additives specified are: pigments, e.g. Hansa yellow, toluidine toner and phthalocyanine blue in amount of 10 per cent by weight of the diluted composition; driers such as naphthenates of Pb, Co, Ca and Mn; and an anion surface-active compound, e.g. a 25 per cent aqueous solution of the sodium salt of the sulphuric acid ester of 7-ethyl-2-methyl undecanol.
Patent GB-386400-A (GB)
Title: Improvements in or relating to galvanic batteries
IPC: H01M50/50
Filed: 1931-11-30
Abstract: 386,400. Galvanic batteries ; twopart couplings. OLDHAM & SON, Ltd. and WILDE, W. D.,36, Hyde Road, Denton, near Manchester. Nov. 30, 1931, No. 33184. [Classes 38 (i) and 53.] A storage battery for use with miners' lamps is provided above the usual lid 2 with an insulating cover 3 in which are embedded metal members 5 connected by screws 8 to the terminal lugs of the battery and adapted to engage the contacts on the baseplate of the lamp. The two cells of the battery are connected by a metal strip 4 also embedded in the cover and connected to the battery lugs by screws. The members 5 are provided with lugs 9 for fixing them securely in the cover. The cells may have filling openings in the side walls as described in Specification 380,561 and the plugs in the openings may be provided with gas vents.
Patent GB-648404-A (GB)
Title: Bender type electromechanical device with dielectric operating element
IPC: H04R17/04
Filed: 1947-12-17
Abstract: 648,404. Gramophone pick-ups. BRUSH DEVELOPMENT CO. Dec. 17, 1947, No. 33269. Convention date, April 9. [Class 40 (iv)] [Also in Group XL (b)] An electromechanical transducer of the bender type comprises an even number of layers of dielectric material that exhibits a piezo-clectric effect under the influence of a polarizing voltage. The polarizing source is connected to the electrodes so that for the plates on one side of. the centre plane the polarizing effect is opposite to that for the plates on the other side of the centre plane. Then, on bending the compound element, the several output, voltages will be additive, or, on applying a voltage to the output terminals, one set of plates will contract and the other set will expand, causing the element to bend.' Fig. 1 shows a gramophone pick-up including a bender element comprising two piezo-electric plates 14, 15, with electrodes 16, 17, 18 connected to terminals 25, 26, 27. The fixed end of the element is held between rubber pads 20, while the free end engages, through a thin sheet of rubber 23, a forked extension 22 of a needle chuck 10 mounted in elastic bearings 11, 12. The output terminals 25, 26, 27 are connected to a, biassing source and to an amplifier, three circuits for this being described (Figs. 2-4, not shown). In Fig. 7 the element is circular and is polarized by a battery 31 connected across the outer electrodes 17<SP>1</SP>, 18<SP>1</SP>, while the output voltage is taken from the middle electrode 16<SP>1</SP>. In this form the extensional movement in the individual plates is radial, the compound element moving as a diaphragm with a cup-shaped bending action. Fig. 5 shows a circuit for polarizing a fourplate element 42 ... 44 from source 31 so that the two upper plates expand while the two lower plates contract and vice versa. The output is taken at 50, 51. Specification 648,403 and U.S.A. re-issue 20213 are referred to.
Patent GB-486543-A (GB)
Title: Improvements in or relating to machines for forming blanks into cartons
IPC: B31B3/44
Filed: 1936-12-05
Abstract: 486,543. Making cartons. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Dec. 5, 1936, No. 33380. [Class 18] In a machine for forming into cartons blanks provided with locking elements e.g. tongues, of the type comprising (1) a series of forming blocks, (2) means for moving said blocks in succession past folding devices, (3) means for engaging a locking element on an end section of the blank with a co-operating locking element on another end section, and (4) means for removing the folded blanks from the forming blocks, (see Specification 10215/12, [Class 18]), the means (4) comprises a pair of gripping members which move in the same direction as, but faster than the forming blocks. As shown three pairs of grippers are provided, each comprising arms 148 of elbow levers pivoted at 154 on a support 156 attached to a sprocket chain 158 which runs faster than the chains 36, carrying the formers 46. The members 148 are momentarily spread at A by cams 170, then springs 168 cause them to grip the carton. Later, cams 172 again spread them and the cartons fall, open side uppermost, on to a travelling conveyer. The blank, Fig. 5, with or without a waxed paper liner, is forced through an aperture D by a former 46 into a U-shape (b is the bottom). Cam-actuated members 76, which initially serve to support the blank over the aperture, fold the flaps c<1> against the sides of the former, then stationary folders 94, 96 fold the flaps b<1> onto the flaps c<1>. During folding of the flaps b<1>, c<1>, the sections d<1> are held out of the way by stationary fingers 98. Two stationary folders 100 then fold the sections d<1> on to the flaps b<1>, two fingers 102 move to the right and push back the sections d<1> to the position shown, two cam-and-spring-actuated pressing fingers 104 press the tabs d<2> into the slots c<2>, this pressing being facilitated by the fact that the former is recessed at 106, and finally the tabs d<2> are pushed home by a plate 108. The fingers 104 and plate 108 move downwards with the former for a short distance. The plate 60 which forms one side of the aperture D may have side plates arranged to support the folded flaps c<1> while the tabs d<2> are pushed home by the plate 108.
Patent GB-212308-A (GB)
Title: Improved means for supporting or displaying hats
IPC: A47F7/06
Filed: 1922-12-07
Abstract: 212,308. Tayleur, A. C. Dec. 7, 1922. Brackets, adjusting; stands and like upright supports.-A device for supporting and displaying hats comprises a clamp B provided' with a horizontal swinging arm A to the free end of which is connected, by a ball joint C, D, a hat holder comprising a pair of spring-pressed arms 0 pivoted to a member Q fixed on a pin K rotatably mounted in the part D of the ball joint, the arms being retained at the required' degree of separation by a screw P which secures, on the pin K, a sliding sleeve M to which the arms 0 are connected by pivoted links N. The free ends of the arms are provided with serrated segments to engage the inside of the hat. A catch may be provided to hold the arms 0 together for packing purposes. According to the Provisional Specification the arm A may be mounted on a pedestal and the hat-holder formed of a piece of stiff wire bent V-shaped with a circle at its apex. The universal joint may comprise a forked member turnable about the axis of the arm A and having a pin on which is rotatably mounted a socket in which a member carrying the V-shaped holder is rotatably mounted. Specifications 8635/99, [Class 98, Photography], and 621/13 are referred to.
Patent GB-292852-A (GB)
Title: Improvements in water-turbine installations
IPC: F03B13/08
Filed: 1927-12-10
Abstract: 292,852. Korn, H. Dec. 10, 1927. Working-fluid supply.-A hydraulic turbine installation comprises two or more rotors C, J on the shaft of a generator W, a rotor N which may drive a pump B, and sluices Q, R, L, E, by which the path of flow of the water may be determined. The rotor N is normally inoperative. When the head of water is high, and the volume small, the water is passed through the rotors C, J in series; with medium heads, through the rotor J alone; and with low heads and large volumes, through the rotors C, J in parallel. When the head is very low, the sluice R of the rotor N is opened, and the pump B increases the head of the water passed to the rotors C, J, the direct passage of water to these rotors being stopped by the sluice Q. The rotors C, J may utilize different proportions of the total head.
Patent GB-918335-A (GB)
Title: An improved machine for facing the bolt holes of flanged t-pieces, flanged elbows and other flanged devices
IPC: B23C3/13
Filed: 1959-10-05
Abstract: 918,335. Facing; drills. STRATHCLYDE ENGINEERING CO. Ltd., and LAING, P. Oct. 4, 1960 [Oct. 5, 1959], No. 33637/59. Class 83 (3). A spot facing machine comprises a table 10 for supporting a flanged workpiece 35, a vertically sliding head 19 carrying a cutter 18 to overhang the flange and manually-operable means 25, 26 for lowering the cutter while it is being driven. Rotation of a handle 34 rotates the gears 25, 26 meshing with racks 24 in columns 20, 21 supporting the head 19. The depth of cut is determined by a screw 34a. The cutter is rotated by a motor 11 through gearing 14, 15, 16. A projection 18a engages the hole to locate the cutter.
Patent GB-819777-A (GB)
Title: Relating to refractory brick
IPC: C04B35/14
Filed: 1957-10-29
Abstract: A refractory brick is composed of chromium oxide, preferably not more than 5 per cent., and high purity silica, and it contains not more than 0,5 per cent alumina and alkali and not more than 4 per cent. of the oxides of calcium, magnesium, strontium, manganese, zinc, nickel, cobalt, iron, titanium and barium.  The chromium oxide may be chromous oxide, chromic oxide, chromium dioxide or chromium trioxide.
Patent GB-486773-A (GB)
Title: Improvements in or relating to machine gun firing means
IPC: F41A27/26
Filed: 1936-12-09
Abstract: 486,773. Firing devices for machine guns ; hydraulic apparatus ; valves. DUNLOP RUBBER CO., Ltd., WRIGHT, J., and TREVASKIS, H. Dec. 9, 1936, Nos. 33793/36 and 26914/37. [Class 92 (ii)] [Also in Group XXIX] Relates to hydraulic systems for the remote control of the firing or bolt-release mechanisms of one or more automatic guns on aircraft as described and claimed in Specification 486,774, in which liquid can be freely circulated through the system under a pressure insufficient to operate the guns, a branch circuit through the firing motors being brought into action when the firing button is operated, to increase the pressure to a degree sufficient for firing. According to the present invention, a return pipe in the branch circuit connecting the motors to the reservoir is made wholly or in part of reduced diameter relative to the pressure supply pipes in order to cause a building up of the pressure at the time of firing. Fig. 1 shows the general lay-out of the hydraulic system described in Specification 486,774 in which there is continuous circulation of liquid under pressure from a reservoir 1 through a pump 2, preselector-valve 3 and pipe 7. By moving the control handle 6 of the preselector-valve 3 to the full-line position shown, the liquid is circulated through the branch circuit 8 including the gun-firing valve 10 and the circuit 13, 15 containing the firing button 42. On pressing this button, a flap-valve in the casing 10 cuts off the circuit 8 and brings into circuit a pipe 9 leading to the firing devices on the guns 16, 17 the return lead 19 from which is restricted either by using a small return pipe or by introducing a fine jet at the box 21. Excess pressure is prevented by a relief-valve 11. Fig. 3 shows the flap-valve 28 in the box 10 in the cut-off position. In the normal dotted-line position, liquid circulates to the press-button casing 14 by passages 31, 30, 37 through lift valve 38 and pipe 13 and returns by pipe 15 and passage 26. The press-button 42 closes the pipe 15 and forces liquid through pipe 13 to operate the flap-valve and bring the firing circuits into action.
Patent GB-411132-A (GB)
Title: The manufacture of dyestuffs of the oxazine series
IPC: C09B19/02
Filed: 1932-11-29
Abstract: Oxazine dyes are prepared by condensing one or two molecular proportions of o-aminopheneols containing a nitro-group with 1.4-quinones of the benzene or naphthalene series which may be substituted by halogen.  The products are either pigment dyestuffs, or vat dyes for wool if containing a keto group, or acid wool dyes if containing a sulphonic acid group.  In examples: (1) chloranil (or bromanil) is condensed with 5-nitro-2-aminophenol giving 1 . 3 . 4 - trichloro - 7 - nitrophenoxazone-2- and a dichlorodinitrotriphendioxazine; using 4 - nitro - 2 - aminophenol 1 . 3 . 4 - trichlor - 6 - nitrophenoxazone - 2 is obtained; using 4 - methyl - 5 - nitro - 2 - aminophenol 1 . 3 . 4 - trichloro - methyl - 7 - nitrophenoxazone - 2 is obtained; using 4-chloro-5-nitro-2-aminophenol 1 . 3 . 4 . 6 - tetrachloro - 7 - nitrophenoxazone - 2 is obtained; using 4-nitro-2-aminophenol-6-sulphonic acid an intermediate is first obtained which is converted to a dioxazine dye by concentrated sulphuric acid; using 6 - nitro - 2 - aminophenol - 4 - sulphonic acid an intermediate is first obtained which is converted to a dioxazine dye by treatment with concentrated sulphuric acid; using 2-amino-4.6-dinitrophenol an intermediate is first obtained which is converted to a dioxazine compound by treatment with concentrated sulphuric acid; (2) 2.5-dibromoquinone is condensed with 5-nitro-2-aminophenol to give 3-bromo-7-nitrophenoxazone-2; (3) 2.6-dichlorquinone is condensed with 5-nitro-2-amino phenol to give 4-chloro-7-nitrophenoxazone-2.  Specification 265,641, [Class 2 (iii)] is referred to.
Patent GB-333824-A (GB)
Title: Improvements in model aeroplanes
IPC: A63H27/00
Filed: 1929-11-06
Abstract: 333,824. Boehme, G. Nov. 7, 1928, [Convention date]. Toy aeroplanes built to resemble full-size metal aeroplanes have a, hollow fuselage and hollow wings consisting of metal frames covered with skins of light material and composed of elements including spars, ribs, &c. riveted together. The fuselage, Fig. 1, is constituted by a fairing having a structure of rings 7 and longitudinals 6, which may be of electron, braced to a compressed air or liquid air container 1 to which is attached an engine 3. Alternatively, the container 1 may be shaped to form a fuselage and ba provided with lugs for attachment of wings and tail plane. The wings are built up, as shown in Figs. 4 and 6, from channel-section spars 17, nose formers 18, trailing edges 19 and rib strips 20; alternatively, wire ribs may be used. In another form, Fig. 8, the wings are made from a. blank folded along its centre line which forms the leading edge and having parts 25 which form upper and lower spar flanges and which are connected by bending down integral tongues 26 which form web members. The wing covering 8 may be paper or cloth attached by an adhesive or be a thin light metal skin. Connection of wings and undercarriage to the fuselage is by clips, those for the wing having clamping bolts which pass through verticallyslotted lugs on the wings to allow for adjustment thereof; bracing struts may also be fitted. The tail unit is of fabric on a wire frame and is adjustably mounted as shown in Fig. 1.
Patent GB-1513258-A (GB)
Title: Manufacture of polyvinylpyrrolidone
IPC: C08F126/10
Filed: 1975-08-15
Abstract: Polyvinylpyrrolidone is prepared by polymerisation of vinylpyrrolidone in an anhydrous organic solvent in the presence of organic per-compounds. A heavy metal of atomic number 23 to 29 is added in the form of a complex or of a salt with an organic acid for use as a coactivator. The polyvinylpyrrolidone obtained can be used for pharmaceutical or cosmetic purposes, in particular for preparing polyvinylpyrrolidone iodide.
Patent GB-916452-A (GB)
Title: Improvements in or relating to electron dicharge devices
Inventor: RICHARDS MARLAIS
IPC: H01J19/78
Filed: 1961-09-22
Abstract: 916,452. Velocity modulated tubes. STANDARD TELEPHONES & CABLES Ltd. Sept. 22, 1961, No. 34042/61. Drawings to Specification. Class 39 (1). In a velocity modulated tube of the type in which a beam of electrons is projected across a coaxial line resonator the glass envelope has a metal disc seal and a resilient metal sheath of high thermal conductivity gripping the glass envelope resiliently and having a flange in thermal contact with the metal disc. This construction provides cooling. A coaxial transmission line or waveguide attached to the disc seal serves both as an output means and as a heat sink. The metal parts (disc of the disc seal and metal sheath) are preferably both of copper. Holes in both discs are provided for aligning the tube with respect to its focusing permanent magnet. The metal sheath is cut away to clear the exhaust tube and its radial flange has radial slits to assist in the forming operation. The metal sheath is preferably blackened on its surface (e.g. has a copper oxide surface) to assist the cooling.