baber/WOPTO huggingface dataset:
Patent GB-124761-A (GB)
Title: Improvements in Apparatus for Absorbing Gases from a Gaseous Mixture.
IPC: C01B3/02
Filed: 1918-02-28
Abstract: 124,761. General Chemical Co., (Assignees of Jahn, F. W. de). Nov. 3, 1917, [Convention date]. By aerating ascending column.-A mixture of nitrogen and hydrogen, which may be obtained as described in Specification 120,546, for the synthesis of ammonia compressed to about 1400 lb. per sq, in. is passed to apparatus in which it is washed with hot caustic soda to remove carbon monoxide. The soda solution of about 25 per cent strength is compressed to the pressure of the system in a compressor 85, and heated in a heater 87 from which it passes into circulation. The gas to be treated is led by a pipe 89 to a heater 90, and thence by a pipe 91 to a gas-lift 92, shown in detail in Fig. 4, which draws the solution from a heater 93 by a pipe 110. The gas and solution pass up a pipe 94 to a tower 95 containing pieces of iron, and thence to a tank 97 from which the purified gas passes by a pipe 98 and cooler 99 to a pipe 103, the condensed water being led back to the tank 97. The tank 97 communicates by an overflow 104 with a tank 105 connected with a float vessel 106, the float of which operates an electrically-controlled valve 108, through which spent liquor is discharged to a storage tank 109. The heaters 90, 93, 87 are preferably of seamless chromium vanadium steel or of tungsten steel. The Specification as open to inspection under Sect. 91 (3) (a) contains also the following subject-matter : A pipe joint for this apparatus is shown in Fig. 3 (Cancelled). The ends of the pipes 76 to be joined are externally threaded, the end of one being recessed at 78 while the other is shaped at 79 to enter the recess, in which is placed a copper gasket 80. Flanges 81 are screwed upon the two tubes and are bolted together as shown. The nuts are preferably of nickel steel containing 3 per cent of nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-883365-A (GB)
Title: System for measuring the duration of an electric signal
IPC: G01F1/80
Filed: 1959-08-12
Abstract: 883,365. Measuring duration of signals. BENDIX CORPORATION. Aug. 12, 1959 [Sept. 5, 1958; Sept. 17, 1958], No. 7923/61. Divided out of 883,364. Class 37. [Also in Group XXXVIII] The duration of an electric signal is measured by applying it as one input to an adding means in opposition to another signal derived from the operation of an indicator controlled by the output of the adding means. The original signal may be the output of a mass flow meter as in Specification 857,052 or 883,364, this signal consisting of a train of A.C. pulses whose duration represents the mass rate of flow of a fluid and whose carrier frequency is that of the A.C. supply. These pulses are generated in an electromagnetic pick-off 56 (Fig. 1), and fed to a demodulator 60, amplitude-limiter 61 and adder 62 where the pulse-length is compared with a feed-back pulse from 63 obtained as described below. The two pulses are arranged to start at the same time by a trigger pulse from the limiter 61, and any difference between their durations produces an output which is stretched at 65, used to modulate an A.C. at 66 and amplified to energize a motor 64 which drives an indicator 73. A potentiometer 70, also driven by the motor, gives a D.C. signal which is converted into a pulse-duration signal in a converter 63 and fed back to the adder 62.
Patent GB-348279-A (GB)
Title: Improvements in or relating to variable speed gear-changing mechanism
IPC: B62M25/04
Filed: 1930-03-11
Abstract: 348,279. Controlling change-speed gearing. PUGH, J. V., Meriden House, Meriden, Warwickshire, and ANSTEY, F., BLEWITT, L. J. EDIS-, and RUDGEWHITWORTH, Ltd., Rudge Works, Crow Lane, Coventry. March 11, 1930, No. 7930. [Class 80 (ii).] A gear-changing device especially for motor cycles comprising a gear-changing quadrant e formed on its side with oppositely-facing ratchet teeth e<1>, e2 is located within a casing a, Fig. 1, and has a control shaft b extending outside and carrying a lever d engageable by the foot. The quadrant e is loose on shaft b which carries rigidly oppositelyextending arms b<3>, b<4>. Arm b<3> carries a pivot pin g for two spring pawls h, h<1> Fig. 2, extending downwards over the two sets of teeth el, e2. A mask j, which allows one pawl only to act at a time, has a lower extension j<3> forming a casing for springs l, l<1>, which engage the arm b<4> tangentially and bring the shaft b always back to mid position. Successive oscillations of lever d to one side or the other impart stepped successive displacements to quadrant e, each corresponding to a single gear change. During such oscillations, the shaft b is stopped by steps #<1>, Fig. 4, on a stepped quadrant f fast on shaft b striking a spring plunger m. More than one gear change can be made at a time, as for instance from first to fourth, by adding sufficient force to the pedal d to cause plunger m to ride up over steps #<1>, #<2> on quadrant f and come to rest at step #<3>.
Patent GB-877739-A (GB)
Title: Water-insoluble monoazo dyestuffs
IPC: C08K5/00
Filed: 1959-03-06
Abstract: The invention comprises water-insoluble monoazo dyestuffs of formula:- <FORM:0877739/IV(c)/1> wherein R is a phenyl radical which is free from sulphonic and carboxylic acid groups and X is a carboacylamino or substituted sulphonamide group.  The dyestuffs give yellow and brown shades when used in textile printing and in the dyeing of lacquers and plastic masses.  In an example 2-nitro- 4-acetylaminoaniline is diazotized and coupled with 1-acetoacetylamino- 4-benzoylamino-2 : 5-dimethoxybenzene.  The following coupling components are specified in further examples:-the 1-acetoacetylamino derivatives of 2-methoxy-benzene-5-sulphonic acid diethylamide, 2-chloro-4-acetylamino- or -benzoylamino-5-methoxybenzene, 2 : 5-diethoxy-4-benzoylaminobenzene, 2-methoxy- 5-methyl- 4-benzoylaminobenzene, 4-benzoylaminobenzene, 2 : 5-dichloro- 4-acetylaminobenzene, 2 : 5-dimethoxy- 4-(21 : 51-dichloro-benzoylamino)-benzene and 2 : 5-dichloro- 4-(b -chloropropionylamino)-benzene.
Patent GB-730335-A (GB)
Title: Improvements in or relating to means for diametrally locating a sleeve member upon aspigot member
Inventor: LOXHAM JOHN
IPC: G01B5/00
Filed: 1951-12-22
Abstract: 730,335. Retaining members on shafts. SIGMA INSTRUMENT CO., Ltd. March 23, 1953 [Dec. 22, 1951], No. 7978/53. Divided out of 730,285, [Group XXXVIII]. Class 80 (2). [Also. in Group XIX] A spigot is located in a sleeve in correct diametral location by forming one of the engaging surfaces with two angularly-spaced, axially-extending, protruding surface portions whilst the other is cylindrical in form and by providing means acting between the surfaces tending to thrust the two surface portions of one surface into contact with the other surface. The invention is shown, Fig. 1, embodied in the turret comparator described in Specification 730,285. [Group XXXVIII], wherein the turret. comprises a sleeve 86 rotatably mounted on a spigot 87 extending forwardly from an upright 5, which is formed with a hole 95 truly perpendicular thereto for receiving a heavy pin 97 which also lies in a truly axial hole 96 in the spigot 87, which, being thus correctly aligned, is attached to the upright 5 by screws 98. The spigot 87 is formed from a bar of circular section with the top portion cut away to form a horizontal flat 88, Figs. 1, 3, and with the lower half ground away slightly to leave two angularly spaced, axially extending original. surface portions 89, 90, the maximum amount ground away at the bottom amounting to 5 to 10 thousandths of an inch for a diameter of 3 inches. The sleeve 86 is formed initially with an internal diameter equal to the external diameter of the bar from which the spigot 87 was formed. The interior of the sleeve is relieved to form a land 92 interrupted by ten equi-angularly-spaced axially-extending grooves of which two 93, 94 are shown. The spigot 87 has a diametrally-extending bore 99 accommodating a hollow plunger 100. The bore is shouldered at 101 and screw-threaded to receive a screw cap 102 against which bears a spring 103 housed in the hollow of the plunger 100 whose external tip is thus urged into one of the ten axial grooves in the land 92 so that the plunger 100 not only defines ten distinct angular positions of the sleeve 86 but serves for the diametral location of the sleeve upon the spigot by pushing downwardly upon the sleeve 86 and drawing it into contact with the pad-like portions 89, 90 of the spigot. Axial location of the sleeve on the spigot may be obtained by means described in Specification 730,334, wherein a control head for selecting a desired gauging fixture is also described. The invention may be applied to means for gauging the distance between two bores (see Group XIX).
Patent GB-703710-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1951-04-06
Abstract: 703,710. Spray carburetters. GRACE, C. J. Feb. 29, 1952, [April 6, 1951], No. 8007/51. Class 7(3) In carburetters in which the fuel is supplied to the intake manifold of an I.C. engine through a pivoted throttle valve, a fuel jet block is provided having parallel capillary passages and, at one side, a segmental recess at the outlet ends of the passages, and the throttle valve is of the butterfly type and is carried by a hollow ported spindle which extends along the recess and receives fuel from and controls the outlet ends of the passages, air being admitted to the spindle at the end adjacent to the passages. In Figs. 4 and 5 the throttle valve b comprises a hollow spindle c having a port q with an inclined edge which controls the outlet ends of capillary passages in a jet block o and determines the number of these passages in use. Air is admitted to the spindle through a valve f operated by the suction on the engine side of the throttle valve, transmitted through a passage m. The jet block may comprise a grooved block or, as shown, be made up from discs of alternately different diameters; alternatively, it may comprise two semi-cylindrical parts with passages in one or each of the contiguous faces of the parts. A plug s decides the number of fuel passages in use and can be used to cut off the fuel completely. The hollow spindle leads to a radial passage w formed by a plate x attached to either side of the throttle valve. In a modification, Fig. 12, the throttle valve is suction operated and loaded by a spring 2 and may be weighted to move towards the closed position. Radial vanes 4 are attached to the valve spindle, and a passage leads from the engine side of the valve to a position between a vane 4 and one of a number of fixed vanes 5 whereby reducion of manifold pressure causes the valve to open to a corresponding extent. The end of the spindle controls holes, not shown, through which oil is admitted to the spindle. The fuel inlet to the jet block is controlled by a manuallyrotatable plug formed with an axial bore leading to a port having an inclined edge for varying the number of jet-block passages exposed to the bore.
Patent GB-199153-A (GB)
Title: Improvements in or relating to apparatus for drying photographic prints and the like
IPC: G03D15/02
Filed: 1922-03-20
Abstract: 199,153. Kodak, Ltd., (Kodak Soc. Anon, Franþaise). March 20, 1922. Drying-apparatus.-In apparatus for drying photographic prints and the like in which the prints are carried between two absorbent bands K, L, and over a heated cylinder, an adjustable stationary curved plate J squeezes the prints between the bands, and the exposed surface of one of the bands is simultaneously heated by radiation from the heated cylinder before passing over it. In the construction shown there are two heated cylinders F, G and the band K is led horizontally above the cylinder G and forms a feeding and preliminary drying table. The bands K, L are tensioned by adjusting devices B<4>, M<2> respectively. The drum G is preferably at a higher temperature than the drum F, and it may be rotated by the handle G<3>, or by means of a motor on the table A' and gearing H<1>.
Patent GB-159422-A (GB)
Title: Adjustable splint for legs with movable articulation for the knee
IPC: A61F5/058
Filed: 1920-03-18
Abstract: 159,422. Stemmler, W. March 18, 1920. Splints.-Adjustable leg splints, of the type in which concave plates are mounted upon tapering rods, are constructed so that any one of these plates can be removed prior to the assemblage of the splint, thus facilitating the treatment of open wounds without the necessity for disturbing the splint as a whole upon the injured limb. The splint comprises two tapering side rods hinged, between their ends, at, points corresponding to the knee-joint and adapted to he locked in adjusted position by set-screws l. A series of concave plates are formed with hooked ends to engage the side rods. The plates at one end are cut away at 2<1> to allow the heel to pass through, and at the other end are adapted to take extension plates 10 when required for long limbs. The footpiece h may be fitted with a concave plate against which the foot presses directly, or the foot may be suspended from the cross-bar of the frame. The frame engages a rack on a base member t to hold it in position.
Patent GB-117247-A (GB)
Title: Improvements in or relating to Wireless and other Telegraphic or Telephonic Receiving Apparatus.
IPC: H04R1/42
Filed: 1917-03-10
Abstract: 117,247. Lyons, W. J., and Selective Signal Co. March 10, 1917. Harmonic telegraphs; optical and photographic receivers and rccorders.-A recorder comprises a manometric flame which is optically or photographically recorded or which produces a smoke trace on a moving strip. In the arrangement shown in Fig. 1, the diaphragm e of a chamber a is connected to a tuning fork i, or to a tuned reed or string, which is operated upon by a magnet f receiving electric impulses of a predetermined frequency. In the modification shown in Fig. 2, the magnet f is placed between the prongs of the fork i, while the movements of the fork are damped by a piece of rubber m, the pressure upon which is varied by a screw n. The prongs of the fork i may be provided with small permanent magnets or with magnets the coils of which are energized by the currents passing through the magnet f. The jet and its associated parts should be enclosed to protect it from sounds, air-currents, and vibrations.
Patent GB-711265-A (GB)
Title: Coal cleaning
Inventor: HIRST ARTHUR ALGERNON
IPC: B03B9/00
Filed: 1950-03-31
Abstract: 711,265. Washing coal. COAL INDUSTRY (PATENTS), Ltd. March 21, 1951 [March 31, 1950], No. 8161/50. Class 82 (2) In a method of cleaning coal using a jig washer, a proportion of the finer sizes of washed coal is returned from the lower part of a settling vessel to the jig washer. The proportion returned may be selected by a system of washers and separators, and may be delivered to a section of the jig washer shielded from the main flow of coal. As shown, the jig washer comprises a washing bed B over which coal passes, a pulsation chamber A with pulsators F, and a plate C enclosing a separate felspar bed, to which is delivered fines from the outlet 14 of a pipe T-junction including a weir 13 and a plate 15 to adjust the proportion delivered.
Patent GB-558812-A (GB)
Title: Improvements in or relating to snow ploughs
IPC: E01H5/06
Filed: 1942-06-16
Abstract: 558,812. Snow ploughs. LEWIN ROAD SWEEPERS, Ltd., and LEWIN, W. J. June 16, 1942, No. 8230. [Class 107] In a vehicular snow plough in which separate plough blades are fitted one in advance of each front wheel of the vehicle to clear a track therefor, each blade is hingedly suspended from a mounting which may be adjusted to set the blade angularly relative to the adjacent wheel, the blade removing snow to one side only of the wheel. In Figs. 1, 2 and 4, a vehicle 1 has in advance of each front wheel 3 a small plough blade 2 deflecting the snow inwardly or outwardly, each blade 2 being carried by a hinge pin 5 on a shaft 6 adjustable vertically and rotatably in a bracket 7 and locked by a screw 8. Each blade 2 is resiliently supported by a leaf spring 9, and may be turned up and secured in inactive position. Each bracket 7 is adjustable along a tubular carrier 11 secured by brackets 12 to the chassis or springs of the vehicle 1 ; the brackets 7 are held in adjusted position as by locking pins engaging holes in the carrier 11. The bulk of the snow is removed by a main blade 14 carried by a frame 15 pivoted to a draw bar 16 attached to the rear of the vehicle 1, the frame 15 being held in adjusted position by a pin 17 ; road wheels 19 support the blade 14 which is held down by a ballast box 20. The main blade 14 may be rigidly or resiliently mounted before or behind the rear axle of the vehicle, or a blade may be arranged in both said positions, or the blade 14 may be replaced by two or more blades, the snow being passed from one blade to the next. Any plough blade may be curved and may be adjustable vertically. The snow may be directed to collector means. In Fig. 8, a levelling plough 24 is arranged between the blades 2 to cut clearance for the undercarriage of the vehicle 1.
Patent GB-1090211-A (GB)
Title: Improvements in or relating to a sliding clasp fastener stringer
Inventor: BURBANK JOHN EMERSON
IPC: A44B19/40
Filed: 1966-02-24
Abstract: 1,090,211. Sliding clasp fasteners. SCOVILL MANUFACTURING CO. Feb. 24, 1966, No. 8298/66. Heading E2S. A sliding clasp fastener stringer comprises a coil 12 made from a single filament and shaped to provide a row of aligned fastener portions, one for each coil convolution, a tape 10 having one edge portion overlapping the coil, a cord 15 extending lengthwise through the coil and stitching attaching the coil to the tape, comprising a pair of threads 16, 17 forming loops arranged in the spaces between the coil convolutions, each pair of simultaneously formed loops consisting of a loop 17a of one thread penetrating through the edge portion of the tape, cord and coil adjacent the fastener portions of the coil and another loop 16a being located in the next adjacent space between coil convolutions and penetrating only through the tape and coil along one side of the cord and a looper thread 18 which passes through the loops 16a, 17a of one pair while crossing over the filament in the region of the cord then around the loops of an adjacent pair 16b, 17b and back in reverse direction across and through the first pair of loops 16a, 17a and repeating. The stitching is accomplished in a sewing machine having two needles and one needle is set ahead of the other in relation to the direction of feed a distance equivalent to the spacing of adjacent coil convolutions. The looper thread 18 passes across each convolution of the coil a total of five times.
Patent GB-589787-A (GB)
Title: Improvement in inductive tuner
IPC: H01F21/12
Filed: 1945-04-05
Abstract: 589,787. Inductances. PLESSEY CO., Ltd. April 5, 1945, No. 8407. Convention date, May 5, 1944, [Class 38 (ii)] [Also in Group XXXVI] A variable inductance comprises a bare wire helix 12 wound on a circular former 11, and a trolley rod 26 carrying a contact member 30 which slides along the helix 12 when the. trolley rod is rotated about it. The spring metal contact member 30 has two channelshaped ends engaging the wire 12 and a central portion fitting in a recess in a stop member 29 which slides along the trolley arm 26 mounted in an arm 25 carried by a hub 23 on the end of an insulating shaft 22 which rotates in bearings 18, 21 in the former, of which the first is metal. Overtravel of the contact member at either end is prevented by engagement between stop member 29 and projections 34, 35 on the former. Two terminals such as 14 are carried by the former, one being connected by conductor 13 to one end of the helix and the other by wire 20, and bearing 18 to the other end of the helix. By the sliding engagement with the'bush 18 of contacts on the ends of a forked spring conductor 27 which is in contact with the trolley rod 26 those turns of the helix to the left of the contact member 30 are short circuited.
Patent GB-1438121-A (GB)
Title: Manufacture of pyrimidines
IPC: C07D239/46
Filed: 1973-02-21
Abstract: 1438121 Pyrimidine derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 28 Dec 1973 [4 Jan 1973 21 Feb 1973] 491/73 and 8493/73 Heading C2C 2-Amino-, 2-alkylamino- and 2-dialkylaminoderivatives, derivatives of 4-hydroxy-5-(optionally substituted)alkylpyrimidines are made by reacting a 2-amino-, 2-alkylamino- or 2- dialkylamino-derivative of 4-hydroxypyrimidine with an aldehyde of formula R.CHO wherein R is a hydrogen atom or an optionally substituted alkyl, alkenyl, phenyl or heterocyclic group in the presence of hydrogen and a hydrogenation catalyst. Reaction may also be effected in the presence of an organic solvent and a condensation catalyst.
Patent GB-492387-A (GB)
Title: Improvements in or relating to the manufacture of fertilizers
IPC: C05C9/00
Filed: 1937-03-23
Abstract: Urea-calcium sulphate [4CO(NH2)2-CaSO4] is obtained by suspending calcium cyanamide in water, passing carbon dioxide therethrough to precipitate calcium as calcium carbonate and liberate free cyanamide, removing the calcium carbonate, mixing sulphuric acid with the cyanamide solution, the ratio of sulphuric acid to cyanamide being in the molecular proportions 1 : 4, converting the cyanamide to urea by heating and hydrolyzing, and then after concentrating the mixture, neutralizing it with the bye-product calcium carbonate thereby combining nascent calcium sulphate with the urea.ALSO:A fertilizer is obtained by suspending calcium cyanamide powder in water, passing carbon dioxide therethrough to precipitate calcium as calcium carbonate and liberate free cyanamide, removing the calcium carbonate, mixing sulphuric acid with the cyanamide solution, the ratio sulphuric acid to cyanamide being in the molecular proportions of 1 : 4 converting the cyanamide to urea by heating and hydrolysing, and then after concentrating the mixture, neutralizing it with the byeproduct calcium carbonate thereby combining nascent calcium sulphate with urea to form urea-calcium sulphate (4CO (NH2)2.CaSO4). The sulphuric acid employed may be waste acid containing amino acids, remaining after the preparation of glutamic acid by hydrolysing protein.  A saturated solution of potassium nitrate, potassium chloride, or potassium sulphate may be added to the urea-calcium sulphate the resulting mixture being converted into a syrup by evaporation under reduced pressure, mixed with powdered aluminium phosphate, monocalcium phosphate or calcium superphosphate, broken into pieces after being kneaded, and dried.
Patent GB-1035744-A (GB)
Title: Packing strip arrangements in hydraulic apparatus
IPC: F15B15/12
Filed: 1964-03-02
Abstract: 1,035,744. Rotary fluid-actuated motors. BERGENS MEKANISKE VERKSTEDER A.S. March 2, 1964 [March 6, 1963], No. 8656/64. Heading F1F. In a rotary fluid-actuated motor of the oscillating-vane type, a vaned rotor 11 (Figs. 1 to 3, not shown) is sealed at each end relative to a stationary housing 10 by packing strips 27, 29, 33, 36 (Fig. 4, not shown) lodged in circumferential grooves 26, 28, 32, 35, each strip being provided with a flexible lip 25 (Fig. 6, not shown) formed by a longitudinal groove or slit which is divided into a plurality of sections by radially extending walls 37 to prevent leakage of fluid along the groove from one working space to another as a consequence of pressure differences across fixed partitions 14, 15 in the housing and vanes 12, 13 on the rotor. The strips are fixed in the grooves by pegs 39 (Fig. 5, not shown), and the spacing of the walls is such that at least two of them are in register with each partition for any position of the rotor, at least one wall being aligned with each vane. Drainage grooves 31, 34 for leakage fluid are connected to the low-pressure side of the motor by passages 40 in the rotor. Strips 21, 22 similar to that according to Fig. 6 are lodged in axiallyextending grooves in the vanes and partitions, the walls 37 being omitted.