baber/WOPTO huggingface dataset:
Patent GB-677540-A (GB)
Title: Improvements in or relating to the manufacture of benziminazoles
Inventor: MAMALIS PATRICK
IPC: C07D235/06
Filed: 1949-08-19
Abstract: The invention comprises benziminazoles of the formula <FORM:0677540/IV (b)/1> where R is hydrogen or methyl.  These are made by reacting 4 : 5-dimethyl-o-phenylene diamine or its N-methyl derivative with formaldehyde, formic acid or a chemical equivalent of formic acid, i.e. ethyl or other orthoformate, diaryl (e.g. diphenyl), alkaryl or dialkylformamidine, formimino-ether (e.g. ethyl isoformanilide), dithioformates, formamide, ethyl formate, or hydrogen cyanide or its hydrogen chloride addition products. Examples show the production of the two compounds of the invention and the picrate of the N-methyl compound.  N - thioformyl - 4 : 5 - dimethyl - o - phenylene diamine is an intermediate for the latter when using sodium dithioformate.
Patent GB-136912-A (GB)
Title: A Device for Adjusting the Length of Flexible Control Wires of the Bowden Type for Internal Combustion Engines and the like.
Inventor: WARNE ALAN
IPC: F16C1/22
Filed: 1918-12-30
Abstract: 136,912. Warne, A., and Warne, H. Dec. 30, 1918. Bowden mechanism.-Relates to means for adjusting the length of flexible wires of the Bowden type for controlling internal-combustion engines, bomb-dropping apparatus, and other apparatus. To adjust the projecting ends D, E of the wire G, a portion of the sheath F is removed, and a tube A is fitted over the wire laterally by using a slot a. A bush B having a lateral slot' b<1> is fitted over the wire and slid down into the tube A until a socket H engages the end of a sheath section F. A socketed cap C<1> is inserted between the other end of the tube A and the other sheath section F<1>. The bush B and cap C<1> are turned so that their lateral slots b<1> are out of register with the slot a. The position of the bush B is then adjusted by a screw b projecting through the slot a, and the bush is clamped by a thumb-screw n engaging the edges of the slot a. The other end of the tube A is closed by a cap C<2> fixed to the tube.
Patent GB-1481372-A (GB)
Title: Sun visor particularly for vehicles
IPC: B60J3/02
Filed: 1975-05-21
Abstract: 1481372 Sun visors Gebr HAPPICH GmbH 21 May 1975 [10 Sept 1974] 21784/75 Heading B7J A sun visor includes a reinforcing wire frame 2 held in position by moulded, plastics members 1 having appropriately shaped channels 3 for receiving the wire, the channels receiving the wire with a snap-action or receiving the wire in a loose fit with adjacent resilient or bendable lugs 5 engaging the wire with a snap action. In one arrangement, Fig. 5, the member 1 is cutaway at 21 and provided with channels 3 to hold an S-shaped portion of a wire frame. As shown in Fig. 16, the member 1 has a generally rectangular shape with a central slot 13 to receive one end of a U-shaped portion of the wire frame 2. The member has channels 3 in opposite faces to receive the wire frame when it is rotated to lie in the plane of said member. A lug 5 retains the frame in position. The member 1 has an aperture 6 for pivotally mounting the sun visor on a vehicle. The member 1 may have a boss about which the frame is rotated to assist in locating the wire frame in the channels 3, Figs. 2-4 (not shown).
Patent GB-652462-A (GB)
Title: Improvements in or relating to the manufacture of water-soluble salts of carboxyalkyl celluloses
IPC: C08B11/12
Filed: 1948-08-18
Abstract: Sodium salts of carboxyalkyl celluloses are made by treating a semi-moist mixture containing cellulose with the sodium salt of a chloro-fatty acid and an excess of sodium hydroxide, sufficient sodium bicarbonate being included in the mixture to convert the excess sodium hydroxide into sodium carbonate.  The sodium bicarbonate is added before the etherification reaction has proceeded to any substantial extent.  In one example, disintegrated sulphite woodpulp sheet is mixed with ethyl alcohol and sodium hydroxide solution, mono-chloracetic acid and then sodium bicarbonate are added, and mixing is continued for 30 minutes at 20-25 DEG  C.
Patent GB-1275387-A (GB)
Title: Method and apparatus for controlling the mixing ratio in dual-fuel engines for vehicles
IPC: F02D19/10
Filed: 1971-04-19
Abstract: 1275387 Regulating; dual fuel engines STEYR-DAIMLER-PUCH A G 19 April 1971 [22 Dec 1970] 22130/71 Heading F1B Dual-fuel engine mixture ratio control device comprises a gas-flow valve which is coupled to the setting member of a fuel injection pump for simultaneous actuation therewith, the gas-flow valve consisting of a spring-loaded valve member which is closed in the idling position and which has a valve pin which protrudes into the flow passage bore, the pin having a cylindrical portion the same diameter as the bore and an adjoining conical tapered portion, the cylindrical portion being at least as long as the distance through which the valve member is displaced from its idling position to the position corresponding to the engine operating at one-third of its full load. Gas-flow control valve 4 comprises a valve member 9, connected by a spindle 3 to the accelerator-pedal operated linkage which controls the setting of the fuel injection pump, and includes a sealing portion which engages a seat 8, a cylindrical portion 12 and a terminal tapered portion. During idling and low power operation of the engine, no gaseous fuel is supplied in order to reduce to a minimum the unburnt hydro-carbons in the exhaust gases. At about 2/3 full-load operation the cylindrical portion begins to move clear of the valve seat and the amount of gaseous fuel supplies increases rapidly up to about ¥ full-load operation and then remains constant. A modification of the shape of the valve pin includes a slow taper 14 which results in gaseous fuel being supplied initally at about 3 of full-load operation, and a more sharply tapered portion 15 which provides a rapidly increasing amount of gaseous fuel as the throttle opening increases.
Patent GB-387605-A (GB)
Title: Improvements in rock drills
IPC: E21B1/30
Filed: 1932-08-06
Abstract: 387,605. Percussive drill. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Ingersoll Rand Co. ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Aug. 6, 1932, No. 22143. [Class 124.] In a percussive drill the ratchet ring W and the valve chest P are formed with notches on their peripheries to receive the side bolts F, thus holding the ring and valve chest in position.
Patent GB-255671-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/00
Filed: 1925-09-04
Abstract: 255,671. Marks, E. C. R., (Toledo Scale Co.). Sept. 4, 1925. Pendulum-weight apparatus.- In a weighing scale oi the kind in which the platform is prevented from tipping by a parallelogram linkage, the four members of the parallelogram are constituted by a base housing, a platform lever within the housing, a platform support resting on the load pivot of the lever, and a link extending from a point within the platform support vertically over the load pivot to a part of the base housing vertically over the fulcrum pivot of the platform lever. As applied to an automatic scale of the fan type the main lever 3 fulcrumed on pivots 4 supports on the load pivots 11 a member 12 to which is secured the platform spider 13. The member 12 is bored to provide clearance for a stud 16 fixed on the spider. A link 17 connects the stud to a bracket 19 attached to the base housing. The pivots of the link are arranged in the vertical planes of the pivots 4, 11 and form a parallelogram therewith. The plunger 23 of a dashpot 22 is connected to the member 12, and a dust protecting-cap 24 is secured beneath the spider.
Patent GB-1105767-A (GB)
Title: Constant torque variable-reluctance motor
IPC: H02K19/10
Filed: 1966-05-19
Abstract: 1,105,767. Dynamo-electric machines. J. JARRET, and J. JARRET. 19 May, 1966 [19 May, 1965], No. 22315/66. Heading H2A. In a variable-reluctance motor having the structure of that described in Specification 1,099,010, the stator has four times the number of poles (such as 201 . . . 204) as the rotor (121), each of the stator poles carrying windings the current in which is switched by mechanical or electronic switches (3) synchronized to a submultiple of the rotor speed. As described, the stator is energized by a common axial winding 21, the flux in each pole being periodically increased and decreased by current switched into opposed windings on each pole under control of cams 300, 305 rotating at one-eighth of the rotor speed and co-operating with contacts 301 . . . 304. The stator poles are divided into eight groups of four poles, the windings on alternate poles of each group being connected in series, whilst corresponding windings of all groups are connected in parallel. The rotor teeth 121 are formed by pure iron strips separated from one another by insulation so that the proportion of pure iron in the teeth is between 0À5 and 0À85. The teeth are shaped so that the net flux in the rotor during operation is constant, a trapezoidal voltage (Fig. 4, not shown) being induced in the stator windings.
Patent GB-1101016-A (GB)
Title: A circuit arrangement for reducing radio interference
IPC: H04B15/02
Filed: 1966-05-19
Abstract: 1,101,016. Supply systems for incandescent lamps. BUSCH - JAEGER DURENER METALLWERKE A.G. 19 May, 1966 [16 Feb., 1966], No. 22375/66. Heading H2H. [Also in Division H3] A circuit for controlling the amplitude of the current flowing through an incandescent lamp 5-and hence its brightness-comprises a symmetrical semi-conductor device 1 such as a " diac " in series with the secondary winding 2 of a pulse transformer, the diac 1 and winding 2 being shunted by a capacitor 3. The current amplitude is controlled by selection of the instant at which voltage is applied to the primary winding 4 of the pulse transformer and the capacitor 3 maintains the diac 3 conductive when the alternating voltage applied thereto is passing through zero, i.e. when the current flowing through the diac is below the selfmaintaining value. The capacitor 3 is stated to provide an interference suppression function.
Patent GB-1483581-A (GB)
Title: Indicating device for use with farm machinery
IPC: A01B69/00
Filed: 1974-08-09
Abstract: 1483581 Agricultural machines A GENT 9 Aug 1974 [11 May 1973] 22465/73 Heading A1B An agricultural machine path indicating device comprises a horizontal support 4 mounted each side of an implement or the rear end of a tractor and supporting a pivoted trailing bar 5 at the lower end of which is a guide or foot 6 which follows a furrow F' previously formed by the machine in the ground. Switches 7 are positioned on either side of the pivot of the bar 5 and these are actuated if the bar 5 is caused, by misdirection of the machine, to stray sufficiently from its central position. Lights or other warning devices mounted on a tractor, which pulls the machine, are connected to the switches 7 and indicate path deviations. In another embodiment the bar 5 is fitted with a cam which is adapted to actuate the switches 7 during rotation, also the switches 7 may be replaced by one two-position switch.
Patent GB-1213928-A (GB)
Title: Pelletizing apparatus
Inventor: DANFORTH CLIFTON A
IPC: B30B11/18
Filed: 1969-05-02
Abstract: 1,213,928. Roller pelletizing apparatus. G. & W. H. CORSON Inc. 2 May, 1969 [3 May, 1968], No. 22468/69. Heading B5A. Apparatus for pelletizing finely divided particulate materials e.g. fly ash, lime, limestone, iron ore, foods, and pigments, comprises opposed rolls 16, 18 each having mounted thereon a resiliently deformable sleeve 46 e.g. of synthetic rubber, defining uniformly spaced circumferential continuous lands 54 and grooves, the lands 54 of each roll intermeshing with the grooves of the opposed roll whereby, on passage of material 102 therethrough, the lands 54 and the opposed groove bottom surfaces 52 are resiliently urged apart to gradually and uniformly apply a compressive force to form compacted ribbons of the material 102 which, upon recovery of the lands and grooves, break away from the grooves at spaced intervals. In an alternative embodiment, the lands may include circumferentially spaced teeth projecting therefrom, Fig. 10 (not shown), and which may be integral with the lands or may comprise metal inserts, whereby uniformly spaced notches are formed in the compacted ribbon of material at which the breaks occur. The opposed surfaces of the lands and of the groove bottoms may also present opposed concave surfaces whereby a ribbon of substantially circular section is formed. The rolls 16, 18 are each journalled in members 24 which are bolted to the machine frame, through elongated slots therein, whereby the roll spacing is adjustable at screws 28. Each groove is provided with a cleaning finger 94 which is adjustably mounted in the machine frame, via screws 96, and has a hardened, tungsten steel, groove engaging tip 100. The rolls 16, 18 are gravity fed from a hopper 66, supplied by a conveyer belt 82, which comprises downwardly inclined side walls 70, and end walls 72 extending into the roller nip, with resilient skirt elements 76, which are contoured to the surface of the rolls, also being provided around the lower edges of the hopper. The pellets are removed by a conveyer. More than one pair of the rolls may be provided in parallel relationship.
Patent GB-316101-A (GB)
Title: Improvements in or relating to radio signalling systems
IPC: H03C1/54
Filed: 1929-07-22
Abstract: 316,101. Telefunken Ges. f³r Drahtlose Telegraphie. July 20, 1928, [Convention date]. Modulating systems.-In short-wave telephony and the like the amplitude of the, carrier wave is reduced to be of the same order as the average sideband amplitude formed by the modulation of the transmitter. The Figure show a balanced type of modulator in which an impedance circuit 11 is inserted in one of the grid circuits and tuned to the carrier frequency, to produce sufficient unbalance for the carrier to be transmitted at the desired amplitude. Alternatively, filter circuits for separating the carrier and sidebands may be employed. Specification 229,732 is referred to.
Patent GB-531843-A (GB)
Title: Improvements in or relating to machines for performing linking and seaming operations on knitted fabric
IPC: D05B7/00
Filed: 1939-08-03
Abstract: 531,843. Linking-machines. COLTMAN, B. J., and THORNTON, R. J. Aug. 3, 1939, No. 22537. [Class 112] The end 18c, Fig. 8. of an enchaining finger 18 is flexible, is normally inclined upwards from the stitching plane and is held in that plane when engaged by stitches in the work on the linking-machine pins, When the work passes and free stitches are formed on the enchaining finger, the latter springs to its upwardly inclined position and the stitch chain is lifted into the path of a constantly reciprocating cutter blade 31. The blade 31 is kept, by a spring under a nut 38, Fig. 6, in contact with a fixed hooked cutter blade, is pressed in the cutting direction by a spring 44 and is positively operated when the needle-lever hits an arm) 47. The' work is stripped from the pins 3 by a plate 53, Fig. 12, carried on a pivoted arm 55, when it is moved into the position shown by a hand-lever 58.
Patent GB-1423624-A (GB)
Title: Refractory grains
IPC: C04B35/04
Filed: 1973-05-11
Abstract: 1423624 Refractory grain KAISER ALUMINUM & CHEMICAL CORP 11 May 1973 [19 June 1972] 22540/73 Heading C1J Sintered refractory grain containing less than 2 wt. per cent SiO 2  is made by (1) forming an intimate mixture of 20-80 wt. per cent of MgO yielding material, calculated as MgO, containing at least 95 wt. per cent MgO and less than 0À5 wt. per cent SiO 2  on analysis by ignition, at least 90 wt. per cent of the MgO yielding material being less than 44 microns and at least 50 wt. per cent being not more than 4 microns, and 80-20 wt. per cent of chrome ore containing less than 3 wt. per cent SiO 2 , at least 95% of the chrome ore being finer than 44 microns and at least 50 wt. per cent being finer than 10 microns, (2) subjecting the mixture without prior compaction to firing at at least 1975 C. for at least 10 minutes and (3) recovering a fully recrystallized uniform refractory grain comprising periclase solid solution crystallites with exsolved chromium-containing spinels contained within individual crystallites, the grain being substantially free of any of the original chrome ore in unreacted form. The chrome ore may be chrome " concentrate ". The MgO- yielding material may be magnesite or magnesium hydroxide. The example describes the preparation of refractory grain from magnesium hydroxide and chrome ore concentrate.
Patent GB-1503992-A (GB)
Title: Free piston stiriling cycle typeengine including a power piston actuated displacer piston driving means
IPC: F02G1/045
Filed: 1975-05-23
Abstract: 1503992 Free-piston Stirling cycle engines  RESEARCH CORP 23 May 1975 [7 June 1974] 22545/75 Heading F1S [Also in Division F4] A free-piston Stirling cycle type engine includes a displacer piston D16 and a power piston 52 each mounted for reciprocation in respective displacer piston and power piston cylinder zones, means for admitting heat to and withdrawing heat from opposite ends of the displacer cylinder zone and phasing means for the displacer piston comprising a rod 38, means connecting one end of the rod to one end of the displacer piston, a small piston 44 on the other end of the rod, a cylinder 48, 50 for the small piston and a pair of gas passages 72, 76 connecting opposite sides of the small piston to alternating sources of compressed gas initiated by the power piston to thereby initiate movement of the small piston and its rod connected displacer piston at an appropriate point in the power piston travel. The power piston may be returned by springs and/or a combination of springs and compressed gas. Dual inter-connected displacers and power pistons may be employed.
Patent GB-188112-A (GB)
Title: Improvements in bowls or shades for lighting purposes
IPC: F21V1/00
Filed: 1921-08-25
Abstract: 188,112. Kemp, W. C. Aug. 25, 1921. Globes: shades.-Translucent bowls or shades for lamps or candles &c. of the kind described in Specification 171,901, are made principally or ex. clusively of mother-of-pearl plates, the interstices between the plates being filled up with the shells called " Unio Tuberculata " and snail or pearl cups or other small pearl shells or fragments thereof. A skeleton framework of metal, preferably lead, is employed to hold the plates together, and the shells are united to the framework by means of solder.
Patent GB-485550-A (GB)
Title: Improvements in and relating to diaphragms for sound reproducing instruments
IPC: H04R31/00
Filed: 1936-08-18
Abstract: A sound reproducing diaphragm comprises a one-piece diaphragm produced by a moulded pulp process, said diaphragm having been impregnated with a synthetic resin varnish such as a phenolaldehyde varnish, and then pressed between heated and polished dies to harden the varnish and to form a one-piece diaphragm.
Patent GB-473505-A (GB)
Title: Improvements in power plants for ships
IPC: B63H23/00
Filed: 1936-08-18
Abstract: 473,505. Turbine plant. BAUER, G. Aug. 18, 1936, No. 22726. [Class 110 (iii)] [Also in Group XXXIII] A power plant for ships wherein a fifth central shaft is provided in addition to the usual four side shafts, is characterized in that the five turbine units are distributed over at least three engine rooms disposed fore and aft, the turbine units acting on adjacent shafts in the lateral direction of the ship and disposed in different engine rooms in the longitudinal direction of the ship. Each unit may be constituted by a high pressure forward. turbine VI, a first medimn-pressure forward turbine V2, a second medium-pressure forward turbine V3 which are disposed aft of the gearing and drive pinions Z1, Z2, Z3 which are in mesh with the common gear Z6, mounted on the propeller shaft P. The high pressure stern turbine R<1> is disposed on the pinion shaft Z<1> and common with the turbine V<1> only on the other forward side of the gear. The low pressure stern turbines R2, R3 are in parallel relationship and are disposed in the same casing as the low-pressure forward turbines V4, V5, and together with a highpressure reverse turbine R1 are mounted on a common condenser K forward of the gearing.
Patent GB-1114453-A (GB)
Title: Logarithmically periodic dipole aerial
Inventor: SPINDLER EBERHARD
IPC: H01Q11/10
Filed: 1965-05-28
Abstract: 1,114,453. Aerials. ANTENNENWERKE BAD BLANKENBURG VEB. 28 May, 1965, No. 22920/65. Heading H4A. In a logarithmically periodic dipole aerial array, each dipole is of the folded type, thereby allowing the impedance of the common crossing- over feeder to be higher than one for an array of simple dipoles. It is stated that the feeder impedance may have a value of from 200-350 ohms.
Patent GB-173008-A (GB)
Title: Improvements in driving gear for combined washing and wringing or mangling machines
IPC: D06F45/18
Filed: 1920-08-04
Abstract: 173,008. McLeod, J. S. Aug. 4, 1920. Washing and wringing machines.-A combined machine is driven from an electromotor s and reduction gear (not shown) driving a. splined shaft h<1>. A sliding pinion h can drive a detachable beater through gearing e<1>, e or the wringer rolls through a train k, k<2>, k<1>. When not in use the wringer can be turned down and the apparatus covered for use as a table. The thickness of the pinion h can be increased to allow of driving the wringer and washing-machine simultaneously.
Patent GB-1144591-A (GB)
Title: Thread-forming nuts
IPC: F16B37/00
Filed: 1966-05-24
Abstract: 1,144,591. Nuts; washers. ILLINOIS TOOL WORKS Inc. 24 May, 1966 [24 May, 1965], No. 23068/66. Heading F2H. [Also in Division B3] An assembly for fastening members 18, 21 together, Fig. 3, comprises a blank stud 44, a screwthread-forming nut 14, washers 16, 40, and compound 38, 42, for sealing the aperture 20 in member 18, when the nut has been screwed on to the stud. The nut may have end notches (60), Figs. 7, 8 (not shown), for facilitating the forming of the screwthreads on the stud. A tap (50), Fig. 5 (not shown), is used for tapping the nut.
Patent GB-1173222-A (GB)
Title: Substituted 6,7-Benzomorphans and their Preparation
Inventor: ROBINSON FRANKLIN MOORE
IPC: C07D221/26
Filed: 1967-05-18
Abstract: 1,173,222. Substituted 6,7-benzomorphans. MERCK & CO. Inc. 18 May, 1967 [20 May, 1966], No. 23072/67. Addition to 1,173,221. Heading C2C. Novel substituted 6.7-benzomorphans of the formula wherein R is a 3-6 membered saturated heterocyclic ring containing oxygen, nitrogen or sulphur as the heteroatoms and either unsubstituted or having one or more cyclopropyl or C 1-5  alkyl substituents and the non- toxic acid addition salts. thereof are prepared by either reacting 5,9-diethyl-2<SP>1</SP>-hydroxy-6,7- benzomorphan with a compound of the formula RCH 2 X, wherein X is halogen or sulphonyl in the presence of a weak base and a water-miscible solvent or by reducing with a metal hydride reducing agent the corresponding 2-acyl-2<SP>1</SP>- acyloxy - derivatives [5,9 - diethyl - 2<SP>1</SP> - (O.CO.R) 2-(CO.R)-6,7-benzomorphan] obtained by reacting 5,9 - diethyl - 21 - hydroxy - 6,7 - benzomorphan with a mixed anhydride of the formula R.CO.O.CO.OR<SP>1</SP>, where R<SP>1</SP> is C 1-5  alkyl. Pharmaceutical compositions, having analgesic activity and suitable for oral or parenteral administration, contain the above novel substituted 6,7-benzomorphans or their non-toxic acid addition salts as the active ingredients together with inert non-toxic carriers, diluents or coatings.