baber/WOPTO huggingface dataset:
Patent GB-1409485-A (GB)
Title: Crop harvester with automatic height control
IPC: A01D41/14
Filed: 1973-03-23
Abstract: 1409485 Crop harvester DEERE & CO 23 March 1973 [23 March 1972] 14178/73 Heading A1F A crop harvester having a vertically movable crop-gathering unit and an automatic height control system has laterally spaced individual ground followers 50 electrically connected through a logical circuit to a solenoid valve 116 which has raise, hold, or lower modes for the supply of fluid to cylinders 26 to control the movement of the crop gathering unit. Ground followers 50 are welded to sleeves 58 having magnets 66 on pedestals 68 which can actuate reed switches 70 (70a-70e Fig. 6) according to whether the ground follower is in the upper, one of the intermediate or lower position.  For transporting the machine, the operator closes the main switch 90 and selects switch 136 to connect lead 134 to lead 140 thus bringing limit switch 142 into circuit. With switch 90 closed current from battery 76 flows through the transistorised circuit to solenoid 112 which moves valve 116 to a raise mode. Cylinders 26 extend until the limit switch 142 is opened by the abutment member 184 which deactivates solenoid 112 so that valve 116 returns to a hold mode. With the crop gathering unit in the transport position ground followers 50 are in their lowermost position so that magnets 66 are below all the reed switches 70 and the latter are all open. For field operation of the machine switch 136 is moved to the Fig. 6 position. Current then flows through the transistorised circuit to solenoid 114 which moves valve 116 to a lower mode so that the crop gathering unit begins to lower. With the 2 pole height selector switch 8 set as in Fig. 6, when one of the ground followers 50 engages the ground and pivots upwards the respective reed switch 70a is activated by the magnet 66 and the solenoid 114 is deactivated and valve 116 returns to the hold mode. With the machine transversing a field and switch 78 set as in Fig. 6 of all the ground followers cause their respective magnets 66 to drop below the reed switches 70 a solenoid 114 is activated through the logical circuit and the crop gathering unit is lowered. If one or more of the ground followers closes its respective reed switch 70b solenoid 112 is activated through the logical circuit and the crop gathering unit rises. The working height can be varied by moving the 2 pole switch 78 to an alternative position.
Patent GB-910697-A (GB)
Title: Improvements in or relating to suction cleaner nozzles
IPC: A47L9/04
Filed: 1960-04-22
Abstract: 910,697. Suction cleaner nozzles. SIEMENSELECTROGERATE A.G. April 22, 1960 [April 24, 1959], No. 14267/60. Class 8(1). A suction cleaner nozzle 1, Fig. 2, has a plurality of closely spaced parallel rubber heater strips 3 extending across the nozzle mouth and capable of oscillating in a plane normal to that containing the mouth, some of the strips 3 being further from the mouth than others. The strips 3 are each secured at their ends by screws 4, 5, Fig. 1, and may be of various cross-sections, e.g., circular, hexagonal or lenticular. Those nearest the nozzle mouth may be roughened, grooved or have knob-like projections. Aspirated air is admitted through recesses 6 cut in along the rim of the nozzle mouth. In a modification the strips are carried by a removable fit-on unit.
Patent GB-717075-A (GB)
Title: Improvements in or relating to multi-channel pulse communication systems
IPC: H04J3/04
Filed: 1952-06-05
Abstract: 717,075. Thermionic distribution. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 5, 1952 [June 5, 1951; Oct. 13, 1951; March 13, 1952], No. 14273/52. Class 40 (3). [Also in Group XL(c)] Each channel pulse train is separated from an interleaved multiplex train, by combining the latter with at least two periodic selection voltages of different frequencies and suitable phases to produce a composite wave from which the required pulses are separated by amplitude selection. In one embodiment of multiplex transmitter, channel pulses g with a recurrence frequency of 8 Kc/s are selected from a train a of 64 Kc/s pulses by adding thereto an 8 Kc/s sine wave voltage c and a 16 Kc/s voltage b, the three waves being applied respectively to the seriesconnected transformers Ta, Tc, Tb. The resultant wave d is clipped by the biased rectifier Ge to provide the channel pulses g occurring at 8 Kc/s. These are modulated in amplitude by a signal wave m, the pu'ses and signal wave being app'ied in series by transformer Tg, Tm to a clipping rectifier Gm, the load resistance R of which may be common to the seven other similar channel circuits. The selection voltages are of appropriate phase and of channel pulse recurrence requency or integral multiples thereof obtained from frequency multipliers fed from an osci'lator which may be phase-stabilized by the pulses. In a second embodiment, the superposition of the selection voltages is carried out in successive steps, Fig. 4 (not shown). The channel se'ection may be performed at a receiver from the incoming multiplex pulse train.
Patent GB-623921-A (GB)
Title: Improvements in or relating to air blast electric circuit-breakers
IPC: H01H33/32
Filed: 1947-05-29
Abstract: 623.921. Gas-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 29, 1947, No. 14285. Convention date, June 13, 1946. [Class 38(v)] The arc-extinguishing, and maybe also the operating, air of an air-blast circuitbreaker, is supplied through two or morevalves 4, 5 having their outlet sides connected by a pipe 3, the valves being normally held closed by air pressure in the tank 2 acting on their discs 4<SP>1</SP>, 5<SP>1</SP>. Opening of a control valve 10 causes the pistons 6, 7 to rise and the discs 4<SP>1</SP>, 5<SP>1</SP> to admit blast: air to the breaker poles 1. Should a valve stick, air from the other valve will press on the outlet side of the stuck valve disc and open it. If a valve remains stuck, the air from the other suffices to extinguish the arcs. A pair of valves may be provided for each pole instead of all the poles.
Patent GB-347020-A (GB)
Title: Process for the preparation of ceramic articles
IPC: B28B1/26
Filed: 1930-05-09
Abstract: 347,020. Pottery manufacture. LENGERSDORFF, W. and LENGERSD ORFF, M., Bunzlau, Germany. May 9, 1930, No. 14296. Addition to 328,777, [Class 87 (i), Bricks &c.]. [Class 87 (i).] In the process described in the parent Specification, the baseboards K are used to forward the moulds, and subsequently the moulded articles, during the operations of casting the articles and stripping the moulds therefrom prior to their entry on the drying operation described in the parent Specification. The used plaster moulds A are returned on a moving band B to the starting point J through a drying chamber provided with heaters D, G.
Patent GB-971637-A (GB)
Title: Improvements in or relating to salicylates
IPC: C07F5/06
Filed: 1961-04-20
Abstract: The invention comprises the adduct of 1 molecule of ethyl acetoacetate with 2 molecules of aluminium monohydroxy diacetylsalicylate, a process for its preparation by (a) reacting an aluminium alkoxide (e.g. the isopropoxide) with ethyl acetoacetate, (b) reacting the product of reaction (a) with acetylsalicylic acid, and (c) reacting the product of reaction (b) with water, and pharmaceutical preparations in dosage unit form (e.g. tablets) for oral administration containing from 1 to 15 grains of the adduct in association with a carrier.  Aluminium diisopropoxide-mono-ethyl acetoacetate chelate is formed as an intermediate by heating aluminium isopropoxide with ethyl acetoacetate under reduced pressure.  Specification 970,636 is referred to.
Patent GB-230327-A (GB)
Title: Improvements in and relating to electric heating apparatus
IPC: F24H7/02
Filed: 1924-06-13
Abstract: 230,327. Wangler Ges., J. June 13, 1924. Addition to 213,897, [Class 37, Electricity, Measuring &c.], and 218,273. Electric stoves. - The electric stove described in the parent Specification has its tubular heating member 1, formed with ribs 1<1> which position it in the shell 2. The spaces between the ribs are filled with sand or other heat retaining substance, and the heating wires are also embedded in the outer side of the member 1. The top cover of the stove may be formed as a hot plate, the heating wire being on its upper outer surface.
Patent GB-843990-A (GB)
Title: High pressure oil filter unit having threaded bowl assembly valve actuating means
Inventor: GUTKOWSKI JANUSZ
IPC: B01D35/147
Filed: 1958-05-06
Abstract: 843,990. Filters. PARMATIC ENGINEERING Ltd. May 6, 1958, No. 14397/58. Class 46. A hollow, cylindrical filter element 59. Fig. 2, has at its upper end an outlet fitting 64 including an outlet bushing 66. The element is held in a bowl 11 by a retaining ring 68, three balls 70 in the ring engaging corresponding recesses 75 in the bowl. During screwing-home of the bowl, the bushing 66 enters the actuating ring 44 of a rotary valve 34, and the retaining ring 68 slides around the actuating ring 44 until three inwardly-directed spring-pressed balls 71 engage corresponding recesses 46, Fig. 7, in the actuating-ring 44, whereupon the valve 34 is rotated clockwise from the position of Fig. 7 through 90 degrees to bring inlet opening 37 and outlet opening 40 in the valve into register with inlet passage 29 and outlet passage 30 respectively in the head 10. When a pin 78 (not shown) extending radially from the upper rim 35, Fig. 7, of the valve 34 reaches a vertical stop-pin 79, Figs 2 and 7, the valve is stopped (at the end of its 90 degrees travel) and balls 71 are urged, by the continued rotation of the bowl, out of recesses 46. When the bowl is unscrewed for removal the reverse process takes place. The unit is intended for oil filtration, and to have a burst pressure of 6,000 p.s.i. A steel tension sleeve 84 is shrunk around the aluminium socket part 25, and screw threads 76, 77 are specially designed for this purpose. A tappet by-pass valve 18 is provided. Specification 841,603 is referred to.
Patent GB-390663-A (GB)
Title: Improvements in and relating to anti-skid chains for pneumatic tires
IPC: B60C27/20
Filed: 1932-05-23
Abstract: 390,663. Wheel tyres. GRAZIANI, V., 3733, Grandy Avenue, Detroit, Michigan, U.S.A. May 23, 1932, No. 14590. [Class 144 (ii).] A detachable treadband comprises a series of plates 14 connected by links 13, 12, 11 to side retaining-chains. Each plate is formed with a pointed end 15 and a deeply-recessed end 16, and may be provided with projecting pins 18 on its tread surface. The side chains comprise links 3, carrying the tread plates, connected by shorter links 6, the end links 3 being connected by a hook-coupling 20.
Patent GB-896451-A (GB)
Title: New hydrazinium compounds, their production and resins obtained therefrom
IPC: C08G63/685
Filed: 1960-04-26
Abstract: Compounds of the formula:-  <FORM:0896451/IV (a)/1> wherein W, Q, R and T, which may be the same or different, each represents a hydroxypropyl group or a polyoxyalkylene chain, the oxyalkylene groups of which consist of at least one oxypropylene group and optionally also at least one oxyethylene group and which terminates in a hydroxyl group, A represents a C2-4 divalent hydrocarbon radical and X represents an anion, and mixtures of such compounds in which W, Q, R and T have different values, are prepared by reacting a diamine of the formula:-  <FORM:0896451/IV (a)/2> with chloramine and, if desired, replacing the chlorine atom A by appropriate anion exchange. Preferred products are based on starting materials having a molecular weight of up to 27,000 and prepared by reacting ethylenediamine with propylene oxide and/or oxetone and then with ethylene oxide.  The above products may be further reacted with compounds containing two carboxy or isocyanate groups (e.g. tolylene diisocyanate) to give resins. Specification 858,488 is referred to.ALSO:The invention comprises compounds of the formula <FORM:0896451/IV (b)/1> wherein W, Q, R and T, which may be the same or different, each represents a hydroxypropyl group or a polyoxyalkylene chain, the oxyalkylene groups of which consist of at least one oxypropylene group and optionally also at least one oxyethylene group and which terminates in a hydroxyl group, A represents a C2-4 divalent hydrocarbon radical, and X represents an anion, e.g. chloride, nitrate and hydroxide, and also mixtures of such compounds in which W, Q, R or T have different values.  Compounds in which X represents chlorine are prepared by reacting a diamine of the formula <FORM:0896451/IV (b)/2> with chloramine, the chlorine atom then being replaced if desired by appropriate anion exchange.  Preferred products are based on starting materials having a molecular weight of up to 27,000 and prepared by reacting ethylenediamine with propylene oxide and/or oxetane and then with ethylene oxide.  The examples describe the preparation of 1,1-bis-(2-hydroxypropyl)-1-[2-bis - (2 - hydroxypropylamino)ethyl] - hydrazinium chloride, 1,1 - bis - (hydroxypolyoxyiso - propyl) - 1 - [2 - (bis - hydroxypolyoxyisopropyl) aminoethyl] hydrazinium chloride and 1,1-bis-(hydroxypolyethoxypolyoxyisopropyl) - 1 - [2 - bis - hydroxypolyethoxypolyoxyisopropyl)aminoethyl] hydrazinium chloride, as well as other compounds of high molecular weight. Specification 858,488 is referred to.
Patent GB-892592-A (GB)
Title: Improved process for the preparation of endrin
IPC: C07D303/10
Filed: 1959-04-30
Abstract: A process for preparing endrin in the presence of metal contaminants comprises epoxidizing isodrin with an organic per-acid in a reaction mixture containing dipicolinic acid. Specified metal contaminants are iron and nickel.  The epoxidization of isodrin, i.e. b -1,2,3,4,10 10-hexachloro - 1, 4, 4a, 5, 8, 8a - hexahydro - 1,4,5,8,-dimethanonaphthalene, in the presence of anhydrous sodium acetate and acetic acid with peracetic acid is described, various proportions of iron and nickel sulphates being added to the reaction mixture.  Dipicolinic acid may be added to the purified product to stabilize it in the presence of metallic contaminants.  U.S.A. Specification 2,676,132 is referred to.  Reference has been directed by the Comptroller to Specification 714,688.
Patent GB-1014590-A (GB)
Title: Improvements relating to discharge means for containers
IPC: B65D39/08
Filed: 1964-04-09
Abstract: 1,014,590. Tapping containers. F. W. LAWSON. April 9, 1964, No. 14761/64. Headings B8D and B8T. The wall 22 at a corner of a container has welded to it a collar 26 providing a groove 38 into which are sprung concentric rings 44, 46 carrying a rupturable diaphragm 40, a cover 48 carrying a plug 62 being screwed into the collar 26 to protect the diaphragm. In order to discharge the contents of the container, the cover 48 is removed and a coupling member 76 placed round the collar, cams 30 being retracted. As the cams are rotated in contact with a groove 28 on the collar, a cutter 82 pierces the diaphragm. Alternatively, a narrower pouring orifice may be obtained by screwing in an adaptor, Fig. 7 (not shown), in place of the plug 62. A ring screwed on to the lower end of the adaptor secures the end flange of a discharge pipe; as the ring is screwed home a cutter ruptures the diaphragm.
Patent GB-1192952-A (GB)
Title: Azetidine-2-One Derivatives
Inventor: PIFFERI GIORGIO
IPC: C07D409/12
Filed: 1967-03-31
Abstract: 1,192,952. 1-Aminoazetidine-2-one derivatives. GRUPPO LEPETIT S.p.A. 6 March, 1968 [31 March, 1967], No. 14790/67. Heading C2C. Novel compounds of formula wherein R is alkyl or aryl, R 1  is H, alkyl or aryl, R 2  is H or carboxylic acid acyl and R 3  is carboxylic acid or acyl including carbamoyl and N-phenylcarbamoyl or R 2  and R 3  together represent furfurylidene or thenylidene optionally substituted by NO 2 , are prepared by appropriate substitution of the amine of formula which is prepared by hydrogenation of the azetidine of formula obtained by simultaneous condensation and cyclization of the compounds of formulae Pharmaceutical compositions having antiinflammatory anti-bacterial and central nervous system activity comprise an above novel compound and a pharmaceutically acceptable carrier.
Patent GB-720218-A (GB)
Title: Improvements in luminous display apparatus
IPC: G09F7/04
Filed: 1952-06-12
Abstract: 720,218. High-frequency supply systems for space-discharge apparatus. ROUSSEAU, R. June 12, 1952 [June 15, 1951; Oct. 23, 1951], No. 14807/52. Class 38 (4). [Also in Group XVIII] A luminous display device of the type in which luminous tubes are excited by highfrequency electric fields comprises a fixedlytuned high-frequency generator 1 providing a constant-frequency output, a step-down transformer, the secondary side 5, 6 of which is connected to a two-wire line 2, 3, said line being connected to the primary winding 10, 11 of a step-up transformer and a luminous display device 8, 9 comprising spaced-apart insulated electrodes connected to the secondary winding 12, 13 of the step-up transformer and a variable member of gaseous discharge tubes 57 having no electrodes disposed in the vicinity of said insulated electrodes, the closed oscillating circuit constituted by the secondary winding of the step-up transformer and said electrodes and tubes being tunable to the fixed frequency of the generator. The frequency of the generator, Fig. 1, is maintained constant by a quartz crystal. More than one transmission line may be used, each connected to a separate secondary winding on the step-down transformer and each terminating in a step-up transformer and display device. The oscillating circuit 1 constituted by the secondary of each step-up transformer, &c., is tuned by a variable condenser 14, 15 connected in series or parallel so that the circuit can be tuned to the generator frequency despite variations in the number of discharge tubes in the sign. One construction of sign, Fig. 5, consists of a plurality of electrodes 49 connected in pairs to the transformer secondary 12 or 13, the strips being embedded in an insulating material 48 and covered by a cloth 50. The discharge tubes 57 are supported on the cloth. In another construction only two electrodes are used, these consist of parallel conductors embedded in and spaced approximately ¢ in, apart by flexible insulation, the electrodes being attached behind a curtain, to the front of which the discharge tubes are pinned. In a further construction, Fig. 8, the discharge tubes 57 are attached to a metal plate 52 by means of permanent magnets fixed to their rear surfaces. The tubes are excited through their thickness, the plate 52 forming one electrode and the other electrode consisting of parallel wires 13 embedded in or fixed to a transparent plate 54 through which the tubes are viewed.
Patent GB-563285-A (GB)
Title: Improvements in planimeters
IPC: G01B5/26
Filed: 1942-10-22
Abstract: 563,285. Planimeters. TICHAUER, G. Oct. 22, 1942, No. 14853. Convention date, Nov. 27, 1941. [Class 106 (i)] A polar planimeter comprises means whereby the radial movements of a tracing point are translated into values representing the areas of circles with radii corresponding to these distances, co-ordinating means whereby these values are varied in direct proportion to the angular position of the tracing point, and a metering device directly indicating the area traced. As shown in Figs. 1, 4 and 7, a rigid frame 1 with a base 2 and head-piece 6 supports a vertical spindle 3 rotatably mounted in bearings 4 and 5. The head-piece 6 carries a sliding block 7 to which is pivoted a plate 8 carrying a conical friction roller 9 to the shaft 10 of which is keyed an area metering wheel 11. The spindle 3 at its lower end is fixed to a transverse slotted guide 13 in which is slidably mounted an arm 14 carrying a tracing point or stylus 16. The arm 14 is formed with rack teeth in meshing engagement with a gear 17 of a reduction gear 17, 18 and 19 forming a drive for a spiral cam 20 mounted in a slot formed in the spindle 3. Coacting with the cam 20 is a spring controlled rod 21 mounted in a cut-away slot in the spindle 3 so as to make frictional contact with the conical roller. Pressure between the rod and' roller is maintained by a spring 23 surrounding the shaft of a disengaging handle 24. The upper end of the spindle 3 is formed with a gear pinion 26 that meshes with a rack 27 on the sliding block 7. By this means radial movements of the tracing point, representing radial distances from the polar axis, are translated into values representing the areas of circles with radii corresponding to these distances while rotary movement of the spindle 3 cause these values to be varied in proportion to the angular movement.
Patent GB-218281-A (GB)
Title: Improvements in electric condensers and method of manufacturing the same
IPC: H01G5/12
Filed: 1924-06-19
Abstract: 218,281. Barengolz, M. June 26, 1023. jConvention date]. Condensers.-The electrodes of a variable. condenser comprise two groups of concentric cylinders, one of the groups being mounted to slide axially within the other. The cylinders mav be closed at one end, to form supports or fixing bases, as shown in Fig. 1, or they may be united by a common flat end constituting a solid block obtained by casting under pressure. The movable electrode 2 is provided with sleeves 6, Fig. 3, which slide on rods 1 adjustably mounted between end plates 3, 4. The movable electrode is adjusted by means of a screw 12 provided with an operating knob 7 having a pointer 8 which moves over a scale 9 indicating the finer divisions of adjustment; an additional pointer 11 sliding over a scale 10 outside the condenser casing being provided to indicate the coarse adjustment. The cylindrical elements of each electrode may be of different heights to give a capacity variation in accordance with any desired law.
Patent GB-272233-A (GB)
Title: Improvements relating to starting internal combustion engines of the diesel and liketype
IPC: F01L13/00
Filed: 1927-06-07
Abstract: 272,233. Motorenfabrik Deutz Akt.- Ges. June 3, 1926, [Convention date]. Cam-actuated pumps; speed, varying; springs. - The initial strokes of the fuel pump of an oil engine, at starting after full compression has been introduced, are made at greater speed than would normally occur at starting. The shaft a carries a disc d connected by a helical spring f to a disc e secured to a shaft h which carries the pump actuating cam i. The shaft h is journaled in the shaft a so as to permit relative rotation of the discs d, e. When the shaft a commences to rotate, the discs, after initial tensioning of the spring due to friction, will rotate together until a ball m housed in a radial slot in the disc e contacts with a stop o. The disc e then remains stationary until a recess p in the disc d coincides with the ball which is then forced into the recesses, the spring meanwhile being tensioned. The discs rotate together, the ball passing the stop. When the ball is disengaged from the recess the disc e is quickly rotated by the spring relatively to the disc d giving an impulse through the cam to the pump plunger. As the speed of the shaft a increases the ball moves outwardly in the slot so that it misses the stop and normal actuation is established. An alternative arrangement comprises a lever which is pressed by a spring against a projection on the pump-rod and is released at a definite position of the crank by the sliding apart of two surfaces. In another device a cam more steeply inclined than the normal cam is employed at first and is afterwards cut out and replaced by the normal cam.