baber/WOPTO huggingface dataset:
Patent GB-244461-A (GB)
Title: Improvements relating to the manufacture of agglomerated adsorbent carbon
IPC: C01B31/08
Filed: 1925-12-08
Abstract: The Specification as open to inspection under Sect. 91 (3) (a) comprises hardening and strengthening substances such as carbon having high adsorbent and catalytic properties by mixing the powdered material with a binder, e.g. "a saline solution of an organic product" and shaping the resulting mass into granules &c. After drying, the carbon or other adsorbent or catalytic substances is coated with a solution of an organic substance to which is added a suitable salt and is then calcined in a closed vessel.  The product is extracted with acid and water and is finally calcined again at red heat to improve its adsorbent properties.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1213939-A (GB)
Title: Improvements in or relating to crystal-stabilised transistor multivibrator arrangements
IPC: H03K3/283
Filed: 1969-06-19
Abstract: 1,213,939. Transistor oscillators. SIEMENS A.G. 19 June, 1969 [20 June, 1968], No. 30975/69. Heading H3T. In a transistor oscillator comprising a crystal 13 stabilizing the frequency of an astable multivibrator 1, 2 coupled to transistors 5, 6 of opposite conductivity type in a bi-stable multivibrator, transistors 1 and 2 respectively operate in concert with transistors 6 and 5, to provide the oscillator with a low resistance with respect to the power supply and a low power consumption. The crystal 13 which oscillates in parallel resonance may be connected into one of the cross-coupling lines of the astable multivibrator to oscillate in series resonance. The oscillator is formed as an integrated circuit.
Patent GB-1353069-A (GB)
Title: Method of producing esters of beta-5050 or tetrahydro-beta-5050
IPC: C07H17/08
Filed: 1971-07-02
Abstract: 1353069 Antibiotic B5050 derivatives TAKEDA YAKUHIN KOGYO KK 2 July 1971 [2 July 1970 16 Nov 1970 1 Dec 1970] 31038/71 Heading C2A The invention comprises esters of the antibiotic designated B 5050 which have the general Formula I: wherein R 1  may be propionyl or acetyl and R 2  may be i-valeryl, propionyl or acetyl. The esters are those in which the secondary hydroxyl groups at positions 9 and 2<SP>1</SP> are esterified, e.g. by acetic acid, propionic acid, butyric acid or crotonic acid. The invention also comprises esters of tetrahydro B-5050. Tetrahydro B-5050 is a compound in which the 10-11 double bond and the epoxy group are hydrogenated, i.e. a third secondary hydroxyl group at position 13 results. Thus triesters of the tetrahydro form of B-5050 are possible. A process for introducing an ester group into antibiotic B-3050 or tetrahydro B-5050 or tetrahydro B-5050 in one step or stepwise comprises reacting B-5050, tetrahydro B-5050 or a 9- esterified form of B-5050 is reacted with an esterifying agent containing an ester group of 2-7 carbon atoms derived from an organic carboxylic acid. One or more of the 2<SP>1</SP>, 9 or 13 hydroxyl groups may be esterified.
Patent GB-1490003-A (GB)
Title: Method of pan granulation
IPC: C05G5/12
Filed: 1975-07-24
Abstract: 1490003 Granulating nitrogenous compounds NORSK HYDRO AS 24 July 1975 [26 July 1974] 31060/75 Headings ClA and ClB A method for the pan granulation of nitrogenous compounds, e.g. ammonium nitrate, urea, or NPK fertilizer, comprises charging hot melt and cooled solids to an inclined, rotating pan, the solids being charged to the pan itself so as to slide down and cover the charged material, and the melt being sprayed to the upper portion of the bed where coarser particles appear (location specified) and the temperature of discharged material being maintained at 4-25 C. below the melting point of the material.
Patent GB-1244696-A (GB)
Title: Improvements in colour developer compositions
IPC: C07D333/20
Filed: 1969-06-19
Abstract: 1,244,696. Substituted aminophenols. FUJI PHOTO FILM CO. Ltd. 19 June, 1969 [20 June, 1968], No. 31105/69. Heading C2C. [Also in Division G2] Compounds of the general formula where X is H, CH 3 , C 6 H 5  or Cl and Y is a pyridine, furan, 1 - benzyl - indole, thiophene or 5- methylthiophene residue, are made by reacting a p-aminophenol with an appropriate heterocyclic aldehyde to form a Schiffs base which is then reduced with sodium borohydride. Specified compounds are α-, #- and γ-(p-hydroxyanilinomethyl) - pyridine, # - (3 - methyl - 4- hydroxyanilinomethyl) pyridine, α - (p - hydroxyanilinomethyl) - furan, α - (3 - chloro- or -methyl - 4 - hydroxyanilinomethyl) furan, # - (3 - phenyl - 4 - hydroxy - anilinomethyl) furan, 1 - benzyl - 3 - (p - hydroxyanilinomethyl) indole, α - (p - hydroxyanilinomethyl) thiophene and 2 - (p - hydroxyanilinomethyl)- 5 - methylthiophene. The compounds are photographic developing agents (see Heading G2C).
Patent GB-664238-A (GB)
Title: Device for coupling a framework carrying an implement to a framework carrying a source of driving power
IPC: A01J11/00
Filed: 1949-12-06
Abstract: 664,238. Machinery frames. BRUYN, A. D. DE. Dec. 6, 1949 [Dec. 6, 1948], No. 31252/49, Class 80 (iv) [Also in Group XXXI] In a device for coupling and locking together a framework carrying a source of mechanical power and a framework carrying an implement to be belt driven, the coupling means comprises at least one pair of longitudinal members on each framework, corresponding members on each framework being adapted to fit together in alignment. An intermediate framework comprising a reduction gear may be provided, and is arranged to be coupled to the implement framework and to the motor framework. The coupling means preferably comprises tubes on one framework and projecting pins adapted to fit into the tubes on the other framework. As shown, an internal combustion engine 1 is mounted on a trolley 3, and drives a reduction gear 2. The trolley is provided with several pairs of tubular members 7 with flared out ends. The implement 8 to be driven has one or more pairs of projecting pins 9 which enter the tubes and are secured therein by detents 10, 11. The engine may be detachably mounted on the trolley and may be connected to the reduction gear by a similar pin and tube connection.
Patent GB-1157013-A (GB)
Title: Rotary Fluid Operated Motors and Fluid Pumps
IPC: F01C1/16
Filed: 1966-07-12
Abstract: 1,157,013. Rotary positive-displacement fluid pumps and motors. PREMATEX S. A. July 12, 1966 [July 14, 1965], No. 31275/66. Heading F1F. A rotary positive-displacement fluid pump, or motor, of the externally-meshing gear-type comprises a pair of gears 24, 30 supported by journals 26, 32 that engage with linings 12, 13 made of e. g. bearing metal, on the walls of two parallel mutually-intersecting bores 10, 11, a chamber 44 on the high-pressure side of the gears being sealed by a spring-loaded piston 40 containing a slot 43 to connect said chamber to an outlet-passage within a sleeve 19. Fluid enters the bores 10,11 through a sleeve 15 on the low-pressure side of the gears. Axial displacement of the gears relative to each other is obviated by mutually adjacent journals overlapping each other; and sealing of the ends of the geartooth spaces is effected by the journals 32 and a pair of rings 27, which have recesses therein to give the journals 32 clearance. The journals 26 may be dispensed with and the gear 24 be furnished with journals that engage with the rings 27. To balance radial thrust produced by the fluid in the chamber 44, arcuate recesses 28, 33 are connected to said chamber by passages 29, 34, 46, 47, 48. The bores 10, 11 are formed in a cylindrical body 1 supported by clamps 2 furnished with fixing holes 3.
Patent GB-337578-A (GB)
Title: Improvements relating to electric heating elements
IPC: H05B3/06
Filed: 1929-10-15
Abstract: 337,578. Sykes, C., Alger, R. G., and Associated, Electrical Industries, Ltd. Oct, 15, 1929. Wire resistances, encased and embedded.-In an electric heating-element of the type comprising a wire embedded in powdered magnesia &c. in a metal tube, the end of the wire being soldered to a lead, the joint and the end of the tube are enclosed in a cap of steatite &c. In the arrangement shown the wire 1 leaves the tube 2 through an insistating plug 4, the metal of the tube being turned over a shoulder on the plug, and is soldered at 6 to a lead 5. Over the end of the tube 2 and the plug 4 is fitted a steatite cap 7 formed with a shoulder against which the end of the plug 4 abuts, a recess 10 to contain the soldered joint 6, and an opening 11 through which issues the lead 5. The cap 7 is fitted with cement which secures it to the tube 2.
Patent GB-911278-A (GB)
Title: Improvements in or relating to safety devices for pivotally-mounted windows
IPC: E05C17/04
Filed: 1961-08-31
Abstract: 911,278. Window stays; door &c. chains. THAM A.B., PERCY. Aug. 31, 1961 [Sept. 9, 1960], No. 31350/61. Classes 44 and 65 (1). A safety device for limiting the opening movement of a pivoted window 2 comprises a substantially U-shaped stirrup having the ends of its limbs 4 hinged to the window frame 1 and its middle portion 5 slidable relative to the window so as to engage hookshaped stop fittings 6 on the window when the predetermined limit is reached. The stop fittings have portions on which the stirrup slides during the opening and closing of the window and which guide it towards a rest position when the window is fully closed. Alternatively, the stirrup may be spring-biased towards the rest position. The stirrup may be fitted either horizontally or vertically, and may be hinged to the window so as to slidably engage the frame.
Patent GB-1148628-A (GB)
Title: Improvements in or relating to tools for machine tools
IPC: B23Q3/155
Filed: 1966-12-15
Abstract: 1,148,628. Tool changing. DEVLIEG MACHINE CO. 15 Dec., 1966 [27 Dec., 1965], No. 31376/67. Divided out of 1,148,627. Heading B3B. A tool has a flange 42 containing a driving recess 44 and radially-directed apertures 48, 50 to receive tool-changer pins. The tool is used in a machine as described in Specification 1,148,627.
Patent GB-876855-A (GB)
Title: Improvements in or relating to electric amplifier systems
IPC: G05D15/01
Filed: 1957-10-09
Abstract: 876,855. Automatic tension control systems. IGRANIC ELECTRIC CO. Ltd. Oct. 9, 1957 [Oct. 29, 1956], No. 31551/57. Class 38 (4). In an alternating current amplifier a preamplifier having a low output impedance is coupled by a transmission line to a power amplifier supplying an alternating voltage to a phase-sensitive network, the output of which is dependent on the phase relationship between the said alternating voltage and a reference alternating voltage also supplied to the network. Variations in tension in material being transported between two pairs of electric motordriven pinch rollers are detected by an idler roller bearing on a loop of the material between the two pairs of driven rollers. The idler roller runs on a shaft each end of which applies a force to a steel column, such as 20, Fig. 2, the stress in which is measured by four strain gauge resistors 21 bonded to the column and contained in a sealed cylinder 15. The four strain gauges, two of which are arranged longitudinally and two of which are arranged transversely, form a bridge circuit. The two bridge circuits LC1, LC2, Fig. 3, are arranged with their outputs in series in an A.C. circuit 42 so that a signal dependent in magnitude and phase-sense on the magnitude and sense of deviation of tension from a value determined by the setting of a potentiometer 43 is applied through a transformer 40 to a pre-amplifier including valves 50, 51. The output of the pre-amplifier is applied through a cathode-follower valve 53 to a low impedance transmission line TL1, TL2 which applies the error signal to a power amplifier including inverter valves 55, 56 and push-pull valves 57, 58. The output of the power amplifier is applied through a transformer 62 to a demodulator circuit M, the D.C. output of which controls through cascade-connected magnetic amplifiers MA1, MA2 the excitation of a field winding F4 of a booster generator BG which corrects the tension by varying the voltage applied to the armature A2 of the motor M2 driving one pair of pinch rollers (not shown). A switch S2 may be operated to insert a resistor 94 in the booster field circuit to limit maximum tension during the passage of a splice in the material. The control system may be rendered inoperative by opening a switch S1. The A.C. supplies to the strain gauges, demodulator, and the magnetic amplifier bias windings are obtained through an automatic voltage regulating transformer 30. A.C. supply for the strain gauges obtained through a chopper or inverter from a D.C. source is referred to. The control system may be effective under standstill conditions. Specification 872,538 is referred to.
Patent GB-1156497-A (GB)
Title: Continuous Casting
Inventor: GREENBERGER JOSEPH IRWIN
IPC: B22D11/08
Filed: 1965-07-23
Abstract: 1,156,497. Continuous casting. UNITED ENG. & FOUNDRY CO. 18 July, 1966 [23 July, 1965], No. 31613/65. Heading B3F. A starter bar consisting of links 76 joined by pivot pins (56) so as to flex in one lateral direction only, has a two-part head 74 (chosen to match the strand size), the casting-end part 45, Fig. 4, being held engaged with the supporting- end part 46 by a spring-loaded ball 49 until the end 46 is moved sideways by a carriage 73, Fig. 2, so that the cast strand is engaged by a stop 72. The cast strand (with only the part 45 attached) can then be lowered for severing by a cutter 71. For re-inserting the bar of linked lengths 76 into the mould 63 for a fresh cast, the carriage 73 is moved back to the casting line and a cable 77 already attached to the tail end of the bar is re-attached to its head 74. A motor 82 then draws the cable and bar up (through withdrawal rolls 68, 69 and guide rolls 66 of a cooling section 64 in a shroud 65) into the bottom of the mould 63. The cable 77 is then released from the bar head 74 and swung away so that a ladle 61 and tundish 62 can be positioned and casting started. The motor 82 and cable 77 then pull the bar 74, 76 down until the head 74 reaches the carriage 73 for release as described. In another embodiment, Fig. 1 (not shown), the bar (43, 51) is not raised into the mould (14) by the cable (53) but by driven rollers (38) of the bar carriage (32), which rollers also subsequently lower the bar and strand until withdrawal rolls (22) drive the strand. A first cooling section (15) is attached to the mould (14) and there are three other sections (16-18) in a shroud (19). The pinch rolls (22) are adjustable as are guides in the cooling sections. A pivoted device (25A) catches and lowers the casting on to horiozntal rollers (27A).
Patent GB-390455-A (GB)
Title: Process and apparatus for attaching patches of material to a web
IPC: B31B1/82
Filed: 1932-11-09
Abstract: 390,455. Attaching patches to webs. ATELIERS DE CONSTRUCTIONS M•CANIQUES C. & A. HOLWEG and FREYSZ, C., 42, Rue Jacques Kable, Strasbourg, France. Nov. 9, 1932, No. 31660. [Class 94 (ii).] Apparatus for attaching patches to a web, particularly transparent patches to a web to be used in the manufacture of window bags &c., employs rotatable means only and comprises rollers 1, 2 which apply, through a relief pad 3, frames of adhesive, cutting rollers 4, 5, which cut away spaces within the adhesive frames, the cut-out portions being retained by suction on roller 4 and then discharged to a collecting means 6, and rollers 7, 8 which apply cut patches to the adhesive frames and press them down. The patches are cut from a transparent web, fed by rollers 9, 10, each patch being retained on the roller 7 by suction prior to being pressed on to the first web.
Patent GB-913980-A (GB)
Title: Slide plate type volume control valve
Inventor: HARE RICHARD C
IPC: F04B1/14
Filed: 1961-09-04
Abstract: 913,980. Reciprocating pumps. APPLIED POWER INDUSTRIES Inc. Sept. 4, 1961, No. 31728/61. Class 102(1). [Also in Group XXIX]. A fluid control valve for a six-piston swashplate type pump 22 comprises a chamber 14 having a series of inlet ports P<SP>1</SP>, P<SP>2</SP>, P<SP>3</SP>, a load port C and a tank port T, and a slide 16 reciprocable in the chamber and having at least two slots 20, 21 whereby the inlet ports may be brought into communication with the load port and/or the tank port. As shown in Fig. 5, the valve controls the output from the sixpiston swash-plate type pump 22, the output being fed via pipes 32, 33, 34 into the slot 21 and then to the load port C, communication with the tank port being blocked by the partition. between the slots in the slide. By moving the slide, some of the pressurised fluid may be diverted from the load port to the tank. The pipes 33, 34 are each connected to two cylinder fitted with non-return isolating valves 30, Fig. 4, whereas the pipe 32 forms a common discharge outlet for the remaining two cylinders each of which is fitted with a non-return valve plug assembly 31.
Patent GB-436484-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/00
Filed: 1934-11-05
Abstract: 436,484. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Nov. 5, 1934, No. 31788. Convention date, Nov. 3, 1933. [Class 39 (i)] A valve has at least one grid-like electrode which is formed of metal deposited upon a ceramic structure. An indirectly - heated flat cathode 2, Fig. 1, is located between the two portions 1 of a ceramic structure which is provided with ribs, the edges of which are coated by sputtering or chemical or galvanic deposition to form the control grid M. The metal coatings are connected together, preferably during manufacture, by end surfaces. Anode structures 3 of stamped sheet-metal are arranged in the gaps between the ribs and are supported by members which do not touch the structure and are connected together. In another form, the electrodes are cylindrical and are arranged within a ceramic structure which consists of two parts riveted or cemented together. In a further form, the anode 6, Fig. 3, consists of a metal deposit on the ceramic member 4, and the grid of a deposit on the ribs of a member 5 ; the members 4, 5 are riveted or cemented together. The insulation between the electrodes may be increased by grooves or notches in the ceramic material. The structure consists of a mouldable material, e.g. that known under the Registered Trade Mark " Calit " and the parts thereof are mutually registered by ribs or flanges. A screen grid may be provided, and the anode may be shaped, and its distance from the screen grid adjusted, to favour the formation of space charges to produce an effect similar to that of a suppressor grid of a pentode.
Patent GB-1031251-A (GB)
Title: Improvements relating to the control of the altitude of aircraft
IPC: G05D1/06
Filed: 1961-09-05
Abstract: 1,031,251. Radar. R. THOMASON. Sept. 4, 1962 [Sept. 5, 1961], No. 31841/61. Heading H4D. [Also in Division G3] In an aircraft altitude control system, Fig. 1 (not shown), a VHF push-pull tuned anodetuned grid Lecher line thermionic valve oscillator 1 supplies, through an adjustable mismatched line 3, an aerial 2 arranged on an aircraft so that energy is directed towards the ground. The frequency of the oscillator has a certain value when the height of the aircraft above the ground is an integral number of half wavelengths. Variations from this height vary the frequency of the oscillator in a corresponding sense and these variations, after being applied through a grounded-grid amplifier 4 and diode frequency changer 6 associated with a local oscillator 5, are converted to D.C. error signals of corresponding amplitude and polarity by a discriminator 8 which includes circuits respectively tuned to frequencies above and below the frequency corresponding to the desired altitude. These error signals control means 9 to correct the height of the aircraft which may be selected by adjustment of oscillator frequency. Omission of the frequency changer stage and the use of solid state oscillators is referred to.
Patent GB-340074-A (GB)
Title: An improved pipe coupling
IPC: F16L19/10
Filed: 1929-10-21
Abstract: 340,074. Lamont, B. N. R. Oct. 21, 1929. Joints with yielding outer part compressed. -A pipe joint comprises two coupling members 11, 12 and sleeves 7 which have inturned flanges 8 against which the ends of the pipes abut, and which have thin edges 9 which are forced over to grip the pipes by curved or tapered shoulders on the coupling members. The thin edge may be formed on the inside or outside of the sleeve. In connecting a pipe to a junction box, a bush screwed into the box comprises one coupling member, and one sleeve only is used.
Patent GB-511590-A (GB)
Title: Improvements in or relating to the treatment of electrodes for electrolytic devices, such as electrolytic condensers
IPC: H01G9/04
Filed: 1937-11-19
Abstract: 511,590. Electrolytic etching ; isopropanol. DUBILIER CONDENSER CO. (1925), Ltd. Nov. 19, 1937, No. 31925. Void. Convention date, Nov. 19, 1936. [Class 41] [Also in Group IV] In an electrolytic etching treatment applied to a strip A of aluminium or other metal which is to be subsequently used as an electrode in an electrolytic condenser the cathodes F, F<1> are curved so as to produce uniform etching ; in a modification the cathodes are complete cylinders of smaller radius. The etching electrolyte may consist of a solution of sodium chloride maintained at its boiling point by the current and/or a supplementary heater. After leaving the etching bath the strip is washed by sprays and passed through a bath of a volatile medium such as isopropanol and finally dried by heating. Water may be removed from used isopropanol by stirring with dehydrated sodium hydroxide and settling, the isopropanol forming the upper layer. Any alkali present in the isopropanol so recovered may be neutralised with formic acid. The water content of commercial isopropanol may also be reduced by this treatment. Specifications 416,010 and 467,024 are referred to.