baber/WOPTO huggingface dataset:
Patent GB-1585124-A (GB)
Title: Clavulanic acid derivatives
IPC: A61P31/04
Filed: 1976-06-04
Abstract: Clavamic acid derivatives of the formula <IMAGE> in which R is -NH2 and R<3> is -COOH or an esterified carboxyl group, are prepared from corresponding azides, R = -N3 in the above formula, by reduction. The free carboxylic acid can be in the form of a zwitterion or a salt with acids or bases; it can be esterified. The starting material with R = -N3 is advantageously prepared from an ester of the formula II in which R is an exchangeable atom or an exchangeable group by reaction with an azide. The products (II), especially the free carboxylic acid, have antibacterial activity on various Gram-negative and Gram-positive microorganisms and they inhibit  beta -lactamase; they can be used alone as antibiotics or in combination with  beta -lactam antibiotics for the treatment of infectious diseases.
Patent GB-394166-A (GB)
Title: Improvements in cinematographic apparatus
IPC: G03B9/10
Filed: 1932-08-22
Abstract: 394,166. Kinematograph apparatus. LE BLAY, P. A. M. and LE BLAY, G., 40, Avenue Coffin, La Varenne-St.-Hillaire, Seine, France. Aug. 22, 1932, No. 23453. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 23, 1932.] [Class 97 (i).] Twin shutters 13, 14 are mounted on concentric spindles 4, 5, provided externally of the casing, with buttons or knobs 11, 12, by which the shutters may be relatively adjusted. The spindles may pass through the spindle of a lens turret or may be eccentrically disposed relatively to the turret, the turret, in the latter case, being provided with openings permitting access to the knobs. One knob may be graduated. The Specification as open to inspection under Sect. 91 comprises also the following subjectmatter. The gearing includes a spindle having two or more screw threads, similar to the governor spindle of a gramophone, engaging a wheel of fibre or plastic material, to reduce mechanism noise. The spool box is provided with a ring, Fig. 6 (Cancelled), through which a finger may be passed when the box is to be withdrawn from the apparatus, the ring being pivoted so as to be turned against the spool box by the door of the apparatus when the door is closed, and being pressed outwards by a spring so as to permit the insertion of the finger when the door is open. A pivoted presser frame, rocked by a rotating eccentric rod against the action of a spring, leaves the film free during movement and grips it when it is stationary ; the frame carries registering pins which are inserted in film perforations during the stationary periods. A film punch is provided having a notched bearing formed in one piece, and soft rubber, felt, &c., is provided on the handles by which the apparatus is supported when in use. The thickness of the spring of the motor, Fig. 3 (Cancelled), is reduced at the end secured to the arbor so as to reduce the possibility of breakage. This subject-matter does not appear in the Specification as accepted.
Patent GB-523768-A (GB)
Title: Improvements in or relating to pulverisers
IPC: B02C15/12
Filed: 1939-01-13
Abstract: 523,768. Ball-and-ring mills. BABCOCK & WILCOX, Ltd. Jan. 13, 1939, No. 23456. Convention date, April 22, 1938. Divided out of 523,753. Drawings to Specification. [Class 59] The pulverizer described is the same as that described in Specification 523,753, but the invention claimed is an annular restricted throat for the upward passage of gaseous fluid formed between the rotating ring and casing and a movable relief gate in the passage for the discharge of tramp metal.
Patent GB-723610-A (GB)
Title: Improvements in the treatment of liquors containing thiocyanate, thiosulphate and phenols
Inventor: WILLIAMS THOMAS HENRY
IPC: C02F1/72
Filed: 1953-09-11
Abstract: An aqueous solution containing thiocyanate, thiosulphate and phenols and having a pH value of 8.4 or less is treated with ozone whereby the thiocyanate and thiosulphate are oxidised in preference to the phenols.  Efluent from a coke oven or a coal carbonisation plant is passed through a fixed ammonia still, suspended lime removed, the pH value reduced by adding sulphuric acid, and the solution is then sprayed down a glass tube against a counterstream of ozonised oxygen or ozonised air.
Patent GB-1489189-A (GB)
Title: Non-fuming flux for the hot tinning hot galvanising and hot leading of iron articles
IPC: C23C2/30
Filed: 1974-10-07
Abstract: 1489189 Flux for hot dip metal coating T H GOLDSCHMIDT A G 7 Oct 1974 23491/77 Divided out of 1489188 Heading C7M A flux for hot dip coating iron articles with Sn, Zn or Pb comprises in wt. per cent 65-85ZnCl 2 , 10-35 NaCl + KCI, 2-8LiCl, 0-6CaCl 2 , free of NH 4 Cl and with the KCl + NaCl and KCl + LiCl being present in eutectic proportions. The flux may be used as a solution or a melt.
Patent GB-1456609-A (GB)
Title: Device for use in fitting spectacles
IPC: G02C13/00
Filed: 1974-05-28
Abstract: 1456609 Optical apparatus OCULUS OPTIKGERATE GmbH 28 May 1974 23615/74 Heading G2J Apparatus for plotting the centre points of spectacle lenses comprises a support 4 which carries a chart of the spectacle frame 7 worn by a patient 1, and a semi-transparent mirror 3 which enables an optician to see the patient's eyes and spectacle frame in coincidence with the chart, the support 4 being mounted for universal adjustment about a joint 5. A second system of mirrors 8, 9, 10, 9 being semi-transparent, enables the centres of the pupils in their reading positions relative to the frame 7 to be marked on the chart. The support 4 may comprise a magnet, in which case the chart incorporates a magnetic material.
Patent GB-731382-A (GB)
Title: Shafts for rackets and other articles
Inventor: PETERS HARRY
IPC: A63B49/08
Filed: 1952-09-20
Abstract: 731,382. Shafts for rackets &c. DUNLOP RUBBER CO., Ltd. Sept. 8, 1953 [Sept. 20, 1952], No. 23637/52. Class 132(2). [Also in Group XXIII] The shaft 1 of a sporting implement such as a racket and made of resin-bonded glass fibres is tightly covered by a casing 2 formed of a film-forming polymer such as polyvinyl chloride, celluloid or cellulose acetate. The ends 3 of the casing overlap the tapered end parts 6 of the parts 5 in which the shaft is secured. The casing may be shrunk on to the shaft by application of heat and may additionally or alternatively be secured by cement. It may be applied in the form of a spiral wrapping.
Patent GB-282343-A (GB)
Title: Disappearing carriage for guns mounted on board submersible craft and for other like uses
IPC: F41A23/22
Filed: 1927-09-08
Abstract: 282,343. Schneider et Cie. Dec. 18, 1926, [Convention date]. Mountings. - Relates to disappearing-gun mountings such as those used on submarine vessels, of the kind which comprise an upper centre-pivot pedestal C which in the firing position rests upon and is locked to a fixed support B, the pedestal being hinged at F to the support, so that, after releasing the locking-device, the gun can be lowered from the support and housed between decks. According to the invention, the locking-device J is arranged concentrically with the centre pivot and comprises a sector rotatable in a groove in the support. The sector has wedge projections J' engaging corresponding projections C<4> on the base flange of the pedestal. The worm K for rotating the sector J is operated by hand gears P<3> or Q<6> through a shaft L on which is feathered a slidable clutch L', L'. In the position shown, the clutch is in engagement with the worm and, on rotation of the sector J to release the mount, a cam j<1> depresses a lever R, S and thereby clutches the drive to a gear N, N', N<2>, for lowering the mount against the action of springs H. When the pedestal leaves the support B, a spring plunger T<3> is released to operate a lever T and disengage the clutch from the worm K. Continuous rotation of either of the hand gears in the reverse direction enables the mountto be first raised and then locked to the support.
Patent GB-1166775-A (GB)
Title: Fire Retardant Resins
IPC: C08K3/38
Filed: 1968-05-17
Abstract: 1,166,775. Fire - retardant compositions. UNITED STATES BORAX & CHEMICAL CORP. 17 May, 1968 [19 June, 1967], No. 23745/68. Headings C3B and C3P. A composition comprises an organic resin in which is dispersed a fire retardant amount of particles of at least one borate selected from lithium, sodium, potassium, rubidium and ammonium borates having an average particle size of from 0.1 to 25 microns. Preferred borates are hydrated sodium borates having a Na 2 O: B 2 0 3  molar ratio of no more than 0.5. Antimony oxide and a chlorinated organic compound may also be included. In the examples were used: an unsaturated polyester prepared from polypropylene glycol, isophthalic and maleic acids, dissolved in styrene and containing t.-butylcatechol, cobalt octoate and methyl ethyl ketone; polyvinyl chloride plastisol with dioctyl phthalate and an epoxy resin prepared from epichlorohydrin and tris-(dimethylaminomethyl) phenol; borax (decahydrated sodium tetraborate), borax/boric acid, Na 2 O: B 2 O 3  hydrated sodium borate of empirical formula Na 2 B 8 O 13  and ammonium biborate; antimony oxide, chlorinated paraffin wax and a fluoborate stabilizer.
Patent GB-912382-A (GB)
Title: Improvements in fatty acid processing
Inventor: WARD NORMAN ERNEST
IPC: C11C1/10
Filed: 1958-07-23
Abstract: Odorous impurities are removed from distilled fatty acids produced from the hydrolysis of fats or fatty oils, such as tallow, by converting the acids to the corresponding anhydrides by means of acetic anhydride and then distilling off from the fatty anhydrides the acetic acid formed, any excess acetic anhydride and the odorous impurities under such conditions of temperature and pressure that the fatty acids, had they not been converted into anhydrides, would also distil off.  The acetic acid and acetic anhydride are suitably first distilled off at atmospheric pressure in an atmosphere of nitrogen, and the impurities distilled off in a second stage when the temperature is raised or the pressure reduced or both.  The fatty anhydrides obtained are suitable for direct conversion to soap by treatment with alkali metal, ammonium or amine bases.ALSO:Fatty acid anhydrides suitable for direct conversion to soap or other fatty acid derivatives are obtained by treating distilled fatty acids, e.g. of tallow, with acetic anhydride and then distilling off from the product the acetic acid formed, any excess acetic anhydride and odorous impurities under such conditions of temperature and pressure that the fatty acids, had they not been converted into anhydrides, would also distil off.  The acetic acid and anhydride are suitably first distilled off at atmospheric pressure in an atmosphere of nitrogen, and the impurities distilled off in a second stage in which the temperature is raised or the pressure reduced, or both.
Patent GB-388406-A (GB)
Title: Improvements in and relating to the twisting and winding of yarn
IPC: D02H3/00
Filed: 1931-08-24
Abstract: 388,406. Twisting yarns and winding upon beams or the like. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and FULTON, S. M., c/o British Celanese, Spondon, near Derby. Aug. 24, 1931, No. 23812. [Classes 120 (ii) and 142 (iv).] Yarns, particularly artificial silk yarns which have little or no initial twist, are twisted by devices adapted to impart more than one twist for each revolution and simultaneously wound upon a beam or the like. The twisting-devices may be arranged with their axes horizontal, the delivery packages being held stationary, for example by means of weighted cradles with the centre of gravity below the axis of revolution of the device, or alternatively or additionally the packages may be arranged with their centres of gravity so disposed. As shown, the twisting-devices are arranged vertically and are of the kind described in Specification 369,293 provided with tension devices as described in Specification 388,078, the threads 15 passing therefrom through spacing-guides 27, a reed 28, and alternately over and under lease rods 29, through a further reed 30 and over a roller 31 to a swift or drum 35, from which they are subsequently transferred in the usual manner to a beam or beam section. The lease rods 29, reed 30 and roller 31 are mounted on a lever 32 maintained horizontal by the tension of the threads. The drive of the twisting-devices may be arranged so that some of the warp threads, preferably alternate threads, are twisted in one direction and the remainder in the other.
Patent GB-1103594-A (GB)
Title: Nuclear reactors
Inventor: MARTIN FREDERICK SAMUEL
IPC: G21C5/12
Filed: 1964-06-09
Abstract: 1,103,594. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 3 June, 1965 [9 June, 1964], No. 23842/64. Heading G6C. A spectral-shift controlled reactor employs as moderator an intimate mixture of at least two substances, one being hydrogen-bearing and another deuterium-bearing, which substances have an insignificant hydrogen and deuterium exchange between them, are reasonably stable whilst undergoing irradiation in the reactor and are capable of separation by inexpensive means, any isotopio separation process as such being unnecessary. The hydrogen-bearing substance may be one of the terphenyls or a mixture thereof, or one of the paraffins or a mixture thereof; the deuterium-bearing substance may be heavy water or a deuterided organic compound. If a paraffin is used, it is preferably selected so as to be solid at some temperature below reactor operating temperature so as to allow separation of the two substances by cooling and filtration and to provide that at shut down, and on cooling, the amount of hydrogenbearing substance present within the reactor core falls so as to reduce reactivity to compensate, at least in part, for the gain of reactivity due to cooling. Inexpensive means of separation envisaged are physical processes such as filtration, distillation or centrifuging, or contacting processes such as ion exchange, or a selective chemical process. A neutron-absorber, such as a heavy metal soap, can be dissolved in the moderator or chemically combined with the hydrogen- or deuterium-bearing substance to act as a control or burnable poison.
Patent GB-385908-A (GB)
Title: Improvements in or relating to the drying of fuel gases
IPC: B01D53/26
Filed: 1932-08-26
Abstract: 385,908. Treating gases with liquids. NAPIER, J. W. and NEWTON, CHAMBERS, & CO., Ltd., Thorncliffe Ironworks & Collieries, near Sheffield. Aug. 26, 1932, No. 23909. [Class 55 (ii).] Fuel gases are dried by contact with a hygroscopic liquid in apparatus consisting of a series of vertical washing chambers having louvred walls through which chambers the liquid is passed in turn, each washing chamber having at its lower end a reservoir containing a cooling coil or coils to reduce the temperature of the liquid after its passage through the chamber, from which coils the cooling medium passes to. another cooler in the stock tank, which tank also includes an evaporator for part of theliquid from the last washer. In the plant shown, calcium chloride solution is taken from the stock tank 15 by means of a pump 17 and delivered to a trough adjacent to the first chamber of the washer. The first circulating pump 12 delivers the solution to a distributer 5 at the top of the first washing chamber, whence it flows over the louvred sides and ring packing of the compartment to the reservoir 7. The gas to be dried enters at 3 and leaves at 4. Solution cooled by the pipes 14 passes through openings 11 to the intercalary troughs 10, whence it is pumped to the top of the succeeding chambers at such a rate that the liquid level in the trough 10 is below that in the reservoirs 7. The operation of the second, third, and fourth compartments is similar, and the diluted solution flows from the last trough to the stock tank 15. A portion of the solution is taken from the delivery pipe 13 of the last circulating pump and passed to the tank via the evaporator 20 which is heated by exhaust steam from the engine 22. The liquid in the tank is cooled by the fluid from the cooling pipes 14 of the reservoirs. Specification 297,765, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-709713-A (GB)
Title: Improvements in or relating to ball-pointed pens
IPC: B43K1/08
Filed: 1950-10-02
Abstract: 709,713. Reservoir pens. DECOLLETAGE PLASTIQUE SOC. AR.L. Oct. 2, 1950 [Oct. 3, 1949; June 22, 1950], No. 24034/50. Class 146(3) A writing point for a ball-point pen comprises a main body part 5, and a separate tip 1 formed with a socket 4 for the ball B and with a narrow bore 3 of uniform diameter which extends to the rear extremity of the tip and has ink supplied to it from a co-axial ink-supply passage 7 of large diameter provided entirely in the main body 5, the rear part of the tip being a push fit in a bore 6 in the part 5 at the front end of the passage 7. The end 2a of the part 2 may extend into the passage 7 to form an annular recess 9 to trap impurities in the ink. The tip 1 can be made in a lathe in one setting. The portion -8 of body 5 may be attached to, or integral with, the ink reservoir.
Patent GB-1046920-A (GB)
Title: Improvements in methods of manufacturing sparking plugs
IPC: H01T13/34
Filed: 1965-06-08
Abstract: 1,046,920. Sparking plugs. ROBERT BOSCH G.m.b.H. June 8, 1965 [June 9, 1964], No. 24077/65. Heading FIB. In the manufacture of a sparking plug a fused mass or plug 8<SP>1</SP> is first filled as a powder mixture of glass particles and an electrically conductive substance into the insulator bore, after the fitting therein of the ignition end electrode part 7 so that a head shaped end portion 9 of this electrode part abuts against an internal annular shoulder of the insulator bore and the powder filling or charge is then heated whilst under pressure of the fitted terminal end electrode part 6 and fused to form a crack free seal around the facing end sections of the two electrode parts, the powder mixture being a glass powder for the most part of uniform grain size containing as electrically conductive substance metallic iron and graphite. In a modified method the powder contains nickel or a nickel alloy instead of or in addition to iron and may also contain nickel oxide. In another modified method the powder may contain cobalt or a cobalt alloy instead of or in addition to iron and may also contain cobalt oxide. The mean grain size of the electrically conductive powder constituents may be at least three times smaller than the mean size of the glass grains. During the mixing of the powder an adhesive such as dextrin may be added as a bonding agent. The powder may also contain iron oxide. Use of alloys of nickel with chromium manganese and/or iron is referred to.
Patent GB-1087733-A (GB)
Title: Improvements in or relating to electro-magnetic devices
Inventor: COTTON MICHAEL BEN
IPC: H01F7/14
Filed: 1963-06-18
Abstract: 1,087,733. Electromagnets. PLESSEYU.K. Ltd. June 10, 1964 [June 18, 1963], No. 24128/63. Heading H1P. [Also in Division F2] An electromagnetic device for producing stepped rotary motion comprises a pair of cooperating polepieces which are arranged for relative movement when an associated coil is energized and an output member which is normally locked by a locking device but is disengaged so that the output member can follow the relative movement of the polepieces when the coil is energized. The magnetic members 10, 11 in Fig. 1 move axially when coil 12 is energized and rotary motion of shaft 14 is attained in known manner by means of opposed cams 17 and balls 18. In operation, member 11 is initially attracted to frame 13 thereby removing stud 20 from a hole in locking disc 21, member 10 then rotates and drives shaft 22, which is attached to disc 21, through ratchet 16. When the coil is de-energized member 11 is returned by spring 19 so that stud 20 engages a hole in locking disc 21 and member 10 is returned to the rest position by a return spring, not shown. In Fig. 2, armature 110 has poles and rotates when coil 115 is energized. The locking member 117 initially moves axially and withdraws pin 124 from a slot in disc 123 so that rotation of the armature drives output shaft 121 through ratchet wheels 125, 126 and index arm 128 until at the end of the stroke a peg on index arm 128 falls into a slot in disc 123. On de-energization of coil 115 locking member 117 moves under the action of spring 118 so that pin 124 enters the same slot in disc 123 forcing out the peg on the index arm thus releasing armature 110 which returns to its rest position by a spring, not shown. The co-operating poles on frame 112 and armature 111 are generally arcuate and shaped so that the opposed area of any one pair of pole surfaces remains constant.
Patent GB-1044107-A (GB)
Title: Apparatus for deriving signals representing portions of an input expression
IPC: G06F9/45
Filed: 1965-06-08
Abstract: 1,044,107. Programming computers. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 8, 1965 [June 29, 1964], No. 24139/65. Heading G4A. Apparatus recognises parentheses in a mathematical (e.g. algebraic or Boolean) expression stored in a register and passes portions of the expression defined by inner parentheses to an output circuit. The invention facilitates execution of expressions such as provided in this form. The expression is stored in a shift register each stage (e.g. Fig. 7e, not shown) of which has flip-flops to specify the operator or the memory address of a data character, two flip-flops to specify which (if either), and two flip-flops to indicate whether or not a left or right parenthesis is present in the stage. Each stage controls a corresponding flip-flop in each of two rows of a parenthesis detector (e.g. Fig. 7g, not shown) as follows. Left and right parentheses cause the corresponding flip-flops in both rows to indicate one and zero respectively. The other positions are then made to agree with the first " parenthesis '' flip-flop going in the right and left directions along the two rows respectively. The rows then provide unique patterns of four bits (Fig. 4, not shown) to identify left and right inner parentheses, which are recognized by AND gates to set to one corresponding flip-flops in a controller which has two rows of flip-flops (e.g. Fig. 7h, not shown). " One " states are transferred along the rows automatically in opposite directions in the two rows, and as this happens the rows control the stages of the shift register to shift the contents correspondingly, so that pairs of inner parentheses are shifted inwards to occupy the same stages as (data address) characters. The operator and its two flanking data addresses, within the inner parentheses, are then transferred to a corresponding position of an instruction store, as is an address specifying where the result of the operation is to be stored. This last address is also placed in the vacated position of the shift register and is obtained from the identity of the shift register stage providing the operator, and the time (as indicated by a binary counter counting clock pulses) at which the transfer to the instruction store took place (Fig. 7i, not shown). The above procedure is repeated, with inward shifting of characters and parentheses in the shift register until groups of characters arrive in adjacent positions when they are transferred to the instruction store as before. Transfer of an operator to the instruction store is accompanied by resetting of the operator flip-flop in the originating shift register stage, and when all these flip-flops have been reset, operation terminates. The contents of the instruction store may be executed directly. A modification mentioned is to replace the instruction store with a printer.