baber/WOPTO huggingface dataset:
Patent GB-1449920-A (GB)
Title: Herbicidally active imidazolidinone derivatives
IPC: C07D233/38
Filed: 1974-01-24
Abstract: 1449920 1 - Phenylazo - 2 - imidazolidinones SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 24 Jan 1974 [26 Jan 1973 (2)] 03394/74 Heading C2C Novel compounds of Formula I wherein X and X<SP>1</SP> are each independently hydrogen, halogen, nitro, or -(Y)p-alkyl wherein the alkyl moiety contains 1 to 4 carbon atoms and is optionally substituted by one or more halogen atoms, Y is oxygen or sulphur and p is 0 or 1, are prepared by reacting 1-amino-2- imidazolidinone with the appropriate nitrosobenzene in the presence of glacial acetic acid. The reaction is preferably effected in the absence of light and moisture and the 1-amino- 2-imidazolidinone reactant may be generated in situ from a salt thereof by addition of an equivalent amount of base (e.g. sodium acetate, sodium hydroxide). The 1-amino-2-imidazolidinone reactant or a salt thereof is obtained by reacting an alcoholic solution of a compound of formula wherein R is aryl, with H 2  in the presence of a hydrogenation catalyst (e.g. Pd/C) and a strong acid which is non-toxic to the catalyst (e.g. HCl, HBr, CF 3 .COOH, CCl 3 .COOH). The Examples 2 to 9 describe the preparation and use as herbicides of several compounds of Formula I. Example 1 illustrates the preparation of 1 - amino - 2 - imidazolidinone hydrochloride.
Patent GB-768347-A (GB)
Title: Sulphanilate salts of amino alcohol esters of penicillin
Inventor: NIELSEN ERLING JUHL
IPC: C07D499/00
Filed: 1953-02-06
Abstract: The sulphanilate salts of amino alcohol esters of penicillin represented by the formula <FORM:0768347/IV(b)/1> where Pen. COO represents penicillin with the hydrogen removed from the carbonyl group, where R is an alkylene group containing 2 to 8 carbon atoms in a straight or branched chain and where R1 and R2 are alkyl groups of not more than 12 carbon atoms each, or together with the nitrogen form pyrrolidino, piperidino, morpholino, piperazino and N-alkyl substituted piperazino rings.  Preferred are salts of esters in which the alkylene group R is of not more than 6 carbon atoms with 2 to 4 of the carbon atoms in a straight chain.  The salts are prepared by reacting (a) the free penicillin ester with sulphanilic acid in organic solvent solution, or (b) a salt of the penicillin ester with a salt of sulphanilic acid in aqueous or organic solvent solution. Any penicillin may be used, e.g. penicillin O, K, F, dihydro-F, K and G as well as mixed penicillins.  Specified penicillin esters are the dimethyl-, diethyl-, dipropyl-, dibutyl-, dihexyl-, dioctyl- and didodecylaminoethyl esters; the methylethyl-, methylpropyl, methyldodecyl- and ethylpropyl-amino ethyl esters; dimethylaminopropyl ester and the diethylaminopropyl ester; the 1-diethylamino-2, 2-dimethylpropanol ester; the 1-diethylamino-4-methyl butanol ester; the diethylaminooctyl ester; the pyrrolidinoethyl ester; the piperidinoethyl ester; the morpholinoethyl ester; the piperazinoethyl ester and the N-methyl piperazinoethyl ester; and such esters containing a heterocyclic ring wherein the ethyl group is replaced by a propyl, isopropyl or dimethyl propyl group.  Specification 727,481 is referred to. Reference has been directed by the Comptroller to Specification 675,422.
Patent GB-436269-A (GB)
Title: Improvement in health apparatus
IPC: A63B21/05
Filed: 1935-02-02
Abstract: 436,269. Exercising - apparatus. TOLCHIN, J. M., 150, Riverside Drive, New York, U.S,A. Feb. 2, 1935, No. 3481. Convention date, Feb. 5, 1934. [Class 132 (i)] An abdominal exerciser comprises an element on which the user kneels secured to a guide in which a handle is slidably mounted, the user moving from a crouching to an extended position in reciprocating the handle which is preferably biassed by means tending to restore the handle to the inner (crouching) position. The user kneels on pads 16 fixed to a base plate 12 secured to a casing 14 housing a slidable handle-bar 24 ending in handles 28. The bar 24 is rigid with a trolley 22, rollers 20 and 42 on which coact respectively with a guide rail 18 and groove 40 in the casing and a light compression spring 30 mounted on a rod 34, which in an alternative construction, may comprise the sole guiding means, assists return of the trolley to the inner end of the casing. The plate 12 may be angularly adjusted relative to the casing 14 by means of a screw 50 so that the user may exercise each side of his body separately. A pointer 56 and scale 54 indicate this adjustment and a further scale 58 indicates the movement of the handle-bar 24. A tension spring may be used instead of the spring 30 to return the trolley.
Patent GB-774374-A (GB)
Title: Improvements in or relating to vehicle differential gears
Inventor: SENKOWSKI ALEXANDER
IPC: F16H48/30
Filed: 1953-02-09
Abstract: 774,374. Controlling tractors. MASSEYHARRIS-FERGUSON (SALES), Ltd. Feb. 9, 1953, No. 3552/53. Classes 79(1) and 79(5). [Also in Group XXIV] In a tractor having an implement power lift with a manual controller 12 and having a differential gear lock, the lock can be rendered operative by movement of the controller into the implement lowered position. The invention is applied to a hydraulically operated power lift in which either the pump and sump are, or only the sump is, common to a hydraulic system for actuating a lock on the tractor differential gear, Figs. 1 and 2 (not shown) ; the lock may alternatively be actuated mechanically or electrically. As shown in Figs. 4 and 5 the hydraulic power lift controller 12 is carried by a shaft 32 and a valve 17 actuating the hydraulic system for the differential lock is controlled by a handle 22 through a sleeve 31 and a cam 35, friction pads 34 being provided for holding the members 12, 22 in the positions to which they are set and both members 12, 22 working in a slotted quadrant 33. Movement of the controller 12 to one side of a neutral position lifting the implement and to the other side permitting the implement to drop to its working position, and in corresponding arcs of movement the handle 22 effects unlocking and locking, respectively, of the differential gear, the close proximity of the members 12, 22 permitting the tractor driver to actuate easily both simultaneously by one hand. As shown in Fig. 7 a spring loaded bolt 40 carried by the handle 22 can positively engage the controller 12 to lock the handles together, the bolt carrying pins 44 being engaged by axial slots in a sleeve 45 carried by the handle, and in the position shown the pins 44 being disengaged from the slots and engaging the head of the sleeve to permit independent movement of the members 12, 22. In Fig. 9 the positive coupling between the members 12, 22 has a one-way action, the coupling being formed by a catch 48 pivotally carried by a block 47 on the controller 12, so that with the catch in its full line position movement of the controller 12 into its implement lift arc positively moves the handle 22 into its differential gear unlocked arc. When the members 12, 22 are not coaxial, the arrangement shown in Fig. 13 may be used in which the controller 12 is positively linked to an arm 51 on a shaft 52 carrying the handle 22, the handle 22 carrying a spring-loaded bolt 40 similar to that shown in Fig. 7. Another arrangement for when the members 12, 22 are not coaxial is shown in Fig. 14, the members being interconnected by a telescopic link, the parts 53, 54 of which can be positively coupled by a pin 55. Specifications 470,069, and 687,341 are referred to.
Patent GB-1435052-A (GB)
Title: Arrangement for dynamic balancing of a high speed press
IPC: B30B15/00
Filed: 1974-01-25
Abstract: 1435052 -Presses MINSTER MACHINE CO 25 Jan 1974 03639/74 Heading B5F [Also in Division F2] A press in which a reciprocable slide S is driven by a pair of parallel, counter-rotating crankshafts A, B has mass elements eccentrically mounted on the crankshafts substantively to counter-balance the inertia forces developed by the reciprocating slide and the centrifugal forces developed by the throw portions Ta, Tb, the mass elements not being all of the same magnitude or distance from the slide, the mass elements on the two shafts supplementing each other when the slide is at the ends of its stroke and balancing each other when the slide is at the mid point of its stroke. Each shaft may have  an eccentric mass Mwa or Mwb at one end and a gear wheel with an eccentric mass Mga or Mgb, due to added masses or to eccentric holes 12, at the other end. There may be more than one eccentric mass on each side of the throw portions. The distances Lwa, Lwb, Lga, Lgb of the masses from the throw portions may be arranged to counterbalance the centrifugal forces about the throw portions. Weights may be added to the slide if a die is used whose weight is less than the weight for which the counter-balancing system is designed.
Patent GB-677167-A (GB)
Title: Improvements in or relating to melamine
Inventor: MACKAY JOHNSTONE SINNOTT
Filed: 1950-02-14
Abstract: Melamine is manufactured from carbonated lime nitrogen (i.e the product obtained from crude calcium cyanamide, resulting from the treatment of crude calcium carbide with nitrogen in an electric furnace, by wetting it with water and treating it with carbon dioxide to react with a substantial proportion of the calcium cyanamide content thereof) by heating this material to 200-475 DEG  C., preferably in the presence of ammonia which is advantageously under a pressure of less than 750 (preferably less than 200) lbs./sq. in. The process may be conducted batchwise in a closed vessel, or as a continuous process, suitable types of apparatus for the latter being described, with drawings, in which the reaction may take place in a screw conveyer or a heated spiral tube, through which the carbonated lime nitrogen is passed in comminuted condition suspended in a stream of hot ammonia.  The reaction product may be removed in solidified form, cooled below 150 DEG  C. and the melamine leached therefrom with water. Alternatively, in the continuous process, the conditions may be such that the melamine is vaporized and, after removal of suspended solids in a cyclone, is condensed and collected in a bag filter.  Carbonation of the lime nitrogen may be effected by bubbling carbon dioxide through a slurry thereof in water, or by spraying water on to the material while it is tumbling in a rotary drum and treating the wetted material with carbon dioxide, the product in either case being dried and ground before use. Detailed examples of both types of continuous process are given. Specification 466,957 is referred to.
Patent GB-510797-A (GB)
Title: Improvements in or relating to clutches for conveying rotary motion
IPC: F16D17/00
Filed: 1938-02-07
Abstract: 510,797. Brakes. ZARB. J., LOMBARDINI, P. C., PAHUD, J. E., and GILMOUR, R. Feb. 7, 1938, No. 3844. [Class 103 (i)] [Also in Group XXIV] A clutch or brake between coaxial shafts 1 and 2 comprises a ring 17 engaging the internal eccentric surface of a drum 23 mounted on the shaft 2, the ring 17 being resiliently connected, by pairs of springs 18, to a floating ring 4 provided with radial slots 7.in which are slidable plungers 5, the inner notched ends of which engage the corners of an axially-movable pyramidal member 3 carried by the shaft 1. Light springs 16, arranged between a shoulder 9 on each plunger and a washer 12 normally held against a shoulder 14 in the slot 7 by a stronger spring 15, maintain the plungers in engagement with the member 3. Each plunger has a further shoulder 11 between the shoulder 9 and the washer 12. If the member 3 is moved fully to the left from the position shown in Fig. 4, allowing the plungers to move inwards, the washers 12 all seat on the shoulders 14, the springs 18 hold the ring 4 concentric with the ring 17, and the plungers reciprocate idly in their slots without any pressure being applied to the ring 17. Thus no torque is transmitted. On moving the member 3 to the right, towards the position shown in Fig. 4, thus moving the plungers outwards, some of the washers 12 are moved away from their seats by the shoulders 11. and the member 4 takes up a position eccentric to the ring 17, causing the latter to be pressed against the drum 23, so that a torque, depending on the displacement of the member 3, can be transmitted. The drum 23, together with the rings 4 and 17, may be movable axially instead of the member 3.
Patent GB-717525-A (GB)
Title: System of carburation in internal combustion engines, and a carburetter embodying the system
IPC: F02M69/00
Filed: 1952-02-13
Abstract: 717,525. Spray carburetters. MOTO GUZZI SOC. PER AZIONI. Feb. 13, 1952 [Feb. 14, 1951], No. 3850/52. Addition to 694.387. Class 7(3) The carburetter described in the parent Specification, in which a continuous stream of fuel flowing from a jet 4, Fig. 2, to a collector tube 5 is atomized intermittently in phase with the intake valve opening by jets of compressed air from a nozzle 13a, is modified in that the fuel atomizing arrangement is arranged upstream of the throttle valve 9. The compressed air jets may be controlled by a rotary valve or, as in Fig. 2, by a poppet valve 11 actuated from the cylinder valve camshaft 14 or by the valve tappets or rockers. Alternatively the camshaft may be adapted to operate individual piston-type compressers to provide the compressed air jets, each injector having a separate compresser. A manometric means for reducing the fuel supply with reduction in the density of the air entering the cylinder is connected to the intake pipe on the downstream side of the throttle valve. The atomizing arrangement may be formed as an integral unit, Fig. 5, in which the continuous stream of fuel from jet 4 to tube 5 crosses a passage 18 in communication with the intake duct and leading to the compressed air duct 13a. The end of the tube 18 may be closed and provided with spraying orifices for the atomized fuel, and the atomizing unit of Fig. 5 may be arranged to spray transversely of the intake duct or it may be arranged in a streamlined member 16, Fig. 7, with the spray opening arranged in the direction of, or against the intake air flow. In Fig. 7 the butterfly throttle valve is replaced by a slide valve 10 which comprises either a single slide or two co-operating slides.
Patent GB-1491832-A (GB)
Title: Feed rate regulation apparatus
IPC: B65G47/31
Filed: 1976-02-02
Abstract: 1491832 Endless conveyers; varying spacing of conveyed articles GRAPHA-HOLDING AG 2 Feb 1976 [3 Feb 1975] 03979/76 Heading B8A A feed rate regulation device for increasing the speed of book blocks B as they are conveyed by an intermediate endless conveyer 4 between a low speed delivery conveyer 1 from a printing machine and a high speed supply conveyer 2 to a binding machine, comprises an endless member 27, 27<SP>1</SP> co-extensive with the carrying run of the conveyer 4, driven at the linear speed of the supply conveyer 2 and carrying driver elements 28 which are projectable into the conveying path of the blocks B on the conveyer 4 to accelerate a block engaged thereby for correct delivery speed to the supply conveyer 2. The intermediate conveyer 4 comprises a pair of parallel spaced belts between which the elements 28 project and is driven in synchronism through chain transmission 20, with the low speed conveyer 1. The endless member 27, 27<SP>1</SP> comprises a pair of vertically spaced parallel chains passing around sprockets 25, 25<SP>1</SP>, 26, 26<SP>1</SP> on vertical axles 23, 24 driven in synchronism with the high speed conveyer 2, through a chain transmission 31 and bevel gearing 29. The driven elements 28 are mounted between the two chains 27, 27<SP>1</SP> and each comprises a drive finger 41 spring biased into its upper block engaging position but movably held down in its inoperative position by a latch 47. As the elements 28 move along under the conveyer 4, the latches 47 are released permitting projection of the fingers 41, by projecting cams 13 on an endless phase chain 10 driven through a chain transmission 21a in synchronism with the conveyers 1 and 4, the cams 13 being synchronized to be in a position midway between two adjacent blocks B moving with the conveyer 4. The latches 47 are spring biased into their finger engaging position to relock the finger 41 in its inoperative position once it has been pulled downwardly by a static cam plate 53, 54 engaging rollers 43 on the fingers 41 during the return run of the elements 28.
Patent GB-225427-A (GB)
Title: A combined food container and cutting board
IPC: A47J47/00
Filed: 1924-06-20
Abstract: 225,427. Powell, W. J., and Powell, C. June 20, 1924. Boxes combined with cutting-boards; contents, delivering.-A container 13 for corned beef &c., preferably of glass or porcelain, is secured on the base 11, in a recess 12, by a strip 14 and a clip 23 on a pivoted lever which is snapped between spring clips 20. The container is closed by a door 28 which is preferably arranged to slide vertically in guides 16. The cutting-board 25 forms the floor of, and slides in and out of, the container, the portion 26, on which rollers may be provided, limiting the inward movement. Finger holes in the base 11 facilitate carriage.
Patent GB-720706-A (GB)
Title: Electric wave generator circuits
IPC: H03K4/86
Filed: 1953-02-13
Abstract: 720,706. Pulse and saw-tooth generating circuit. STANDARD TELEPHONES & CABLES, Ltd. Feb. 13, 1953 [Feb. 20, 1952],- No. 4102/53. Class 40 (6). A constant amplitude waveform with a variable D.C. level is generated from the potential appearing across a two-terminal constant voltage device in the anode-cathode path of a valve, variations in grid potential controlling the level. A saw-tooth wave is generated by the circuit 9, 10, 11 fed from a constant voltage gas discharge tube 6 in series with a resistor 7. The cathode potential of valve 1 follows closely changes in grid voltage which thus determines the D.C. level of the output terminal 13. Since the voltage across tube 6 is constant the output amplitude is unaffected by variations in the current through valve 1. The saw-tooth generator may be replaced by a multivibrator, Fig. 3 (not shown).
Patent GB-691043-A (GB)
Title: New synthetic resins
IPC: C08F236/04
Filed: 1949-02-15
Abstract: Vinyl phenols, e.g. ortho-, meta- and paravinyl phenols and their methyl, ethyl, and propyl nuclear derivatives, are copolymerized with cyclopentadiene and indene type compounds, e.g. cyclopentadiene, indene, coumarone and their methyl and ethyl derivatives, and naphtha fractions containing these substances. Copolymerization may be carried out in bulk or solution with the aid of heat, ultra-violet light, and catalysts such as hydrochloric and sulphuric acids, activated clays such as activated Fuller's earth, stannic chloride, boron trifluoride, phosphorus oxychloride, aluminium chloride, and organic peroxy compounds.  The copolymers may be rendered infusible by heating with hexamethylene tetramine, cross-linked by condensing with aldehydes, or etherified.  The copolymers may be used as a basis for lacquers or moulding powders.  Specifications 691,035 and 691,036 are referred to.
Patent GB-1379975-A (GB)
Title: Methods of manufacturing a semiconductor device comprising a voltagedependant capacitance diode
IPC: H01L29/93
Filed: 1972-01-28
Abstract: 1379975 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Jan 1972 [2 Feb 1971] 4123/72 Heading H1K In manufacturing a PN junction semiconductor capacitor a first layer 2 of the same conductivity type as, but of lower conductivity than, a substrate 1 is deposited on the substrate 1, at least a second layer 3 of the same conductivity type as, but higher conductivity than, the layer 2 is deposited thereon. The conductivity of a surface portion of the layer 3 is increased by diffusing in further impurity of the same conductivity type and finally the PN junction 13 is formed by diffusing in an impurity of the opposite type. During the first-mentioned diffusion and any other heating stage employed, e.g. to form an oxide coating on the layer 2, the steplike impurity profile resulting from the sharp boundaries between the substrate 1 and the layers 2 and 3 is rounded off by thermal diffusion. More than two layers may be provided, each layer having a higher conductivity than the layer on which it is deposited. More than one impurity may be diffused simultaneously into the layer 3 to obtain a desired profile. In an example in which an Sb-doped Si substrate 1 has formed thereon P-doped epitaxial layers 2 and 3, P and Sb or As are simultaneously diffused into the layer 3, the former impurity having the lower surface concentration but the greater depth of penetration into the layer 3. The PN junction 13 is finally formed by means of a B-diffusion stage.
Patent GB-987316-A (GB)
Title: Polymers
IPC: C08F10/00
Filed: 1963-02-04
Abstract: A polymer is produced by contacting an olefine A which is an olefinically unsaturated aliphatic hydrocarbon having a slower polymerization rate than isobutene, with a Friedal-Crafts catalyst in the presence of not more than 20% by volume expressed as a percentage of olefine A of isobutene.  Olefine A is preferably 4 - methyl - pentene - 1. The polymerization is preferably carried out in an inert diluent such as hydrocarbons and halogenated hydrocarbons, e.g. ethyl chloride and the preferred catalyst is aluminium chloride.
Patent GB-1240985-A (GB)
Title: Improvements in or relating to structural steel mats
IPC: E04C5/04
Filed: 1970-01-30
Abstract: 1,240,985. Wire fabrics. BAU-STAHLGEWEBE G.m.b.H. 30 Jan., 1970 [6 Feb., 1969], No. 4472/70. Heading D1K. A steel mat comprises two layers of superimposed rods 2, 3 between and perpendicular to which are placed one layer of rods 1 which are held by welding together the superimposed rods 2, 3 in the spaces between them. Rods 2, 3 may be respectively straight and undulated, Fig. 1, or may both be undulated, Fig. 2 (not shown). The rods may be ribbed.
Patent GB-1397183-A (GB)
Title: Wire printers
IPC: H01F7/122
Filed: 1973-01-30
Abstract: 1397183 Electromagnets BURROUGHS CORP 30 Jan 1973 [18 Feb 1972] 4529/73 Heading H1P [Also in Division B6] A print wire 35 is actuated by solenoid means comprising a first driving coil 30 having a magnetic circuit including an axial fixed core 32 and an axial annular fixed core 33, coacting with a movable cylindrical armature 34 partially surrounded by the annular core 33. The print wire 35 is biased to rest position by a permanent magnet 39 acting in a magnetic circuit including an axial core 44 and an annular axial core 41 coating with a movable cylindrical armature 40. A coil 45 is provided to cancel the effect of the permanent magnet 39.
Patent GB-1530091-A (GB)
Title: Light conducting arrangements
IPC: G02F1/035
Filed: 1977-02-04
Abstract: 1530091 Controlling light SIEMENS AG 4 Feb 1977 [6 April 1976] 04574/77 Heading G2F In an electrically controllable optical waveguide directional coupler, electrodes 12 intended to lie either side of, and between, the coupled guides are first formed on a substrate 10 and are subsequently used as a doping mask for the deposition and diffusion by heating into the substrate surface of material 14 to produce the guides 101, 102 only where the electrodes are absent. As described the substrate is LiNbO 3  or LiTaO 3  and layer 14 is of Ti or Nb. The latter may be allowed to remain over the electrode, or removed after the diffusion step. An or Pt electrodes 12 may have an adhesion layer 11 of Ti, Cr or Ni-Cr compound or alloy. During the diffusion step, diffusion into the substrate from layer 11 or 12 may also occur, so that the more highly doped zones forming guides 101, 102 are deeper in the substrate ("bead waveguides"), giving good coupling and enabling the spacing of the guides to be relatively large. Such diffusion may however be prevented, e.g. where the guides are curved, by providing a glass layer between the electrodes and the substrate.