baber/WOPTO huggingface dataset:
Patent GB-952674-A (GB)
Title: Apparatus for handling seeds in predetermined quantities
IPC: A01C7/04
Filed: 1961-12-01
Abstract: 952,674. Suction lifting appliances. C. W. MAHY. Oct. 24, 1962 [Dec. 1, 1961], No. 42987/61. Heading B8H. Seeds, pills, pellets or other small objects are lifted by suction heads 18, Fig. 1, and deposited when needle valves 29 are lowered into the suction heads to cut off the suction. The suction is produced by a fan 5 driven by an electric motor 3. The device is held by handles 2 and the needle-valves 29, which are urged into a closed position by springs 28, are raised by handles 27. A cover 32 adjustably covers a hole in the chamber 12 so that the reduction in pressure within may be controlled. The suction heads 18 are screwed into the base-plate 15 and the complete base plate may be removed so that different arrangements of suction heads may be used. The needle valves 29, Fig. 4, may be sufficiently long to abut and dislodge the seeds when they are lowered to the " off " position. The ends of the heads 18 may comprise replaceable nipples of different sizes and closure caps may be provided. In a second embodiment a slide-valve between the fan and the suction heads may replace the valves 29. The tray from which the seeds are picked up may have shallow depressions which align with the suction heads to facilitate picking up the last few seeds. The tray may be releasably attached to the lifting device to provide protection for the lifting heads when not in use.
Patent GB-1437450-A (GB)
Title: Self-propelled ridable lawnmowers
IPC: A01D69/00
Filed: 1973-09-13
Abstract: 1437450 Mowing machine SIMPLICITY MFG CO Inc 13 Sept 1973 [18 Sept 1972] 42991/73 Heading A1F [Also in Division F2] A self propelled rotary mower comprises a belt driven clutch assembly 39 through which the mower may be driven in either forward or reverse direction. The assembly 39 comprises pulleys 43, 44 freely mounted on a shaft 41 and rotated in opposite directions by an engine 14 through a pulley 24 and a V- belt 36, tension in the belt being maintained by a spring mounted idler pulley 37. A half pulley 42 integral with the shaft 41 forms together with the adjacent faces of pulleys 43 and 44 seatings for V-belts 48 and 57. These latter belts in turn pass around idler pulleys 49, 58 mounted on a crank 53. A hand lever 86 is linked via a rod 92 to a 'U' shaped member 93 mounted pivotally on a strap 65 integral with the crank 53; the rod, which passes through end pieces 96, 97 being held in position by two springs 98, 99 placed between the end pieces and on either side of a collar 94 integral with the rod. Pushing lever 86 in the forward direction tightens belt 57 and slackens belt 48, thus causing the half pulley 42 and the shaft 41 to rotate; rearward displacement of lever 86 tightens belt 48 and slackens belt 57 thereby causing shaft 41 to rotate in the opposite direction. Shaft 41 passes into a two speed gearbox and differential unit thus providing the mower with two forward and two reverse gears. A pedal 59 operates a brake strap 81 via a rod 74; in addition the brake pedal is connected to the crank 53 by two rods 62, 68 which are resiliently attached to two 'U' shaped members 64 pivotally attached to strap 65. As the brake pedal is depressed, rods 62 and 68 return the crank to its neutral position where neither belt 48 nor 57 is under tension thus removing the drive from the gearbox; on raising the pedal, the crank is returned to its pre braking position by the action of spring 98 or 99. A parking brake lever 101 operates the brake strap 81 via a rod 104, the brake being held on by the lever passing an over-centre position.
Patent GB-1434600-A (GB)
Title: Tool head for boring and turning polygonal shaped surfaces
IPC: B23Q35/10
Filed: 1973-09-14
Abstract: 1434600 Boring and turning polygonal shapes H E WHEELER 14 Sept 1973 43342/73 Headings B3T and B3C A boring or turning tool 1 for machining polygonal surfaces when mounted on a lathe turret 2, comprises a cylindrical housing 6 adapted to be driven at 7, Figs. 1, 2, 4, by a lathe chuck 38, Fig. 7, a cutter bar 9 supported in the housing, a polygonal-shaped cam 16 rotatably mounted in the housing and having a continuous groove 15, one face of which is employed when boring, and the other face when turning, a cam follower 17 having a pin 14 which is seated in groove 15, and an adjustable cam follower 22, having an adjustable pin 21 which is seated in an elongated slot 23 formed in a transverse slide 20. When cam 16 is rotated, slide 20, along with cutter bar 9, is reciprocated to thus cut a polygonal shape on the workpiece. Cam follower 22 is adjustable so as to vary the size of the surface to be produced, by a coarseadjustment means 51, and a micrometer adjustment means 54, Fig. 7. Driver means 7 may be replaced by a shock absorbing driver (64), (65), Fig. 12 (not shown), or means 7 may co-operate with a drive member (68) Fig. 13 (not shown), bolted to the nose of the lathe spindle. In a modification, a dog-type drive unit (70) Fig. 15 (not shown) is used.
Patent GB-1280704-A (GB)
Title: Improvements relating to the protection of three-phase alternators
IPC: H02H7/06
Filed: 1969-09-02
Abstract: 1280704 Protective arrangements BROWN BOVERI & CO Ltd 2 Sept 1969 [3 Sept 1968] 43387/69 Heading H2K An earth fault protection circuit for a threephase star-connected alternator 1, comprises a three-phase transformer 8 having a starconnected primary 81 and an open-delta secondary winding 83 connected to supply through a filter circuit 10, 12, 17 and a rectifier 14 a first signal dependent on the third harmonic of the alternator output voltage, a single phase transformer 7 having its primary winding connected between the alternator star point and earth and its secondary winding connected to supply through a filter circuit 11, 13, 18 and a rectifier 15 a second signal dependent on the third harmonic voltage at the star point, and a relay 16 responsive to the relative magnitudes of the first and second signals. Normally these signals balance and the relay 16 is not energized, but when an earth fault occurs on a winding of the alternator adjacent the star point the signals are unbalanced and relay 16 is energized and closes its contacts to energize a relay 23, which after a delay causes the opening of a main switch 3 and the closing of a field short-circuiting switch 5. Protection against other earth faults may be effected by a further relay 9 responsive to signals of the fundamental frequency derived from the transformer 7 and a star-connected secondary winding 82 of the transformer 8.
Patent GB-1002892-A (GB)
Title: Aryl esters of unsaturated sulfonic acids and a process for their production
Inventor: FRIEDRICHSEN WILHELM
IPC: C08K5/42
Filed: 1961-12-06
Abstract: The invention comprises an unsaturated sulphonic acid aryl ester of the general formula R1.SO2.OR2 in which R1 denotes a hydrocarbon radical having at least five carbon atoms, preferably 5 to 22 carbon atoms, and containing one olefinic double linkage, in d ,e -position to the sulphonic acid ester group, and R2 denotes an aryl radical, preferably phenyl or naphthyl, which may be substituted one to five times by saturated hydrocarbon radicals of 1 to 12 carbon atoms, halogens, alkoxy groups of 1 to 6 carbon atoms and/or esterified carboxyl groups. The novel compounds may be made by reacting a mono-olefine containing at least one methyl or methylene group adjacent to the double linkage with a vinylsulphonic acid aryl ester at a temperature between 100 DEG  and 300 DEG  C.  Pressures from atmospheric up to 200 atm. may be used, if necessary with the use of an inert gas.  Suitable starting materials are specified.  Examples describe the preparation of the following new compounds: pentene - (1) - sulphonic acid - (5) phenyl ester; 2-methyl-pentene-(1)-sulphonic acid-(5) phenyl ester; 1-phenyl-pentene-(1)-sulphonic acid - (5) o - methylphenyl ester; decene - sulphonic acid o - methylphenyl esters and guaiacol esters; tetradecenesulphonic acid o-methylphenyl esters; tetradecensulphonic acid b -naphthyl esters; 2-methyl-pentene-(1)-sulphonic acid-(5) (11,11,31,31-tetramethylbutyl ester, o - chlorophenyl ester, (21,41 - dichloro) - phenyl ester, (ac-a -tetralyl) ester, (41-chloro-31-methyl)-phenyl ester and phenyl salicylate ester.
Patent GB-1089475-A (GB)
Title: A novel vitamin b derivative
IPC: C07D415/00
Filed: 1965-10-15
Abstract: The invention comprises O,O-diiso-butyroylthiamine disulphide of formula <FORM:1089475/C2/1> The compound may be prepared by reacting thiothiamine with isobutyric acid or an isobutyroyl halide, reacting the resulting O-isobutyroylthiothiamine with a desulphurizing agent (e.g. hydrogen peroxide) and oxidizing the resulting O-isobutyroylthiamine (e.g. with a halogen, hydrogen peroxide or an alkali metal ferricyanide) to O,O-diisobutyroylthiamine disulphide. Alternatively, thiaminedisulphide may be reacted with isobutyric anhydride or an isobutyroyl halide.  Examples are given.  O,O - Diisobutyroylthiamine disulphide may be made into tablets, e.g. with lactose, and used to treat Vitamin B1 avitaminosis.
Patent GB-1058830-A (GB)
Title: Circuit arrangement for the automatic level control of a multi-channel, carrier-frequency, long-distance, transmission system
IPC: H04B17/40
Filed: 1963-11-08
Abstract: 1,058,830. Automatic gain control. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Nov. 8, 1963, No. 44149/63. Heading H4R. In an automatic gain control arrangement for a multi-channel carrier frequency transmission system which utilizes a large number of intermediate repeaters which are fed with power over the inner conductor of a coaxial cable and in which cable attentuation changes due to temperature variations are compensated by maintaining the supply voltage constant and utilizing the current change due to the variation of cable resistance with temperature to control the gain of the intermediate amplifiers via, for example, indirectly heated thermistor circuits, a pilot operated gain control device is located at the supply station and controls a variable gain amplifier at the supply station and in addition varies the supply voltage to the intermediate repeaters so that e.g. half the change in gain is obtained at the supply station amplifier and half at the intermediate repeaters. The preferred embodiment comprises a carrier system having main stations SA1 and SA2 joined by coaxial lines having intermediate repeaters V which are powered over the line by supply units G1 and G2 at the main stations, each station supplying half the repeaters between the adjacent stations, the supply loop being completed by inductors L and the line being sectioned to the D.C. supply by capacitors C. At each main station a gain regulated amplifier Va1 or Va2 is controlled in accordance with the level of a pilot signal by the gain regulating device R 1  or R 2 . The gain regulating device also controls the voltage of the power supply unit G1 or G2, thus varying the power supply current through the line and controlling, e.g. by cascaded indirectly heated thermistors, the gain of the repeaters V. In addition the resistance of the cables changes with changes in ambient temperature and the resulting supply current change varies the gain of the amplifiers V to compensate for the change in attenuation of the line. The control device R1 and R2 may be of the type in Specification 992,663 and the regulating thermistor response may be accelerated by the method described in Specification 996,954.
Patent GB-987148-A (GB)
Title: Improvements in or relating to forming apparatus
Inventor: REES RICHARD GEORGE
IPC: B21D7/04
Filed: 1962-11-22
Abstract: 987,148. Valves. REDMAN TOOLS Ltd. Nov. 22, 1963 [Nov. 22, 1962], No. 44292/62. Heading F2V. [Also in Division B3] A valve assembly for controlling the discharge of fluid from a jack in a bending machine comprises a main valve 38 controlled by fluid pressure, supplied through pipes 75, 76 connected to each side of a control valve 52, and by a spring 45 compressed by an adjustable abutment 65. The pressure-drop across the valve 52 is effective to adjust valve 38. The setting of the control valve 52 is also adjustable, by a rod 77 operated by an eccentric 31, which may be locked externally of the valve casing.
Patent GB-1007971-A (GB)
Title: Procedure for the recovery of vitamin b-12 from rich microorganism cells
Inventor: ROLOVICH IVAN
IPC: C07H23/00
Filed: 1960-12-23
Abstract: Vitamin B12 is obtained from an alkaline saline suspension of micro-organism cells obtained during the fomentation of a Vitamin B12 producing micro-organism by heating the suspension, separating the spent cells, treating the resulting aqueous solution with CaO to precipitate impurities, filtering, adding tannic acid to the filtrate to precipitate a Vitamin B12 tannic acid complex and recovering the Vitamin B12 preferably by ion exchange or chromatography. In an example, a salt suspension obtained according to the method of Specification 1,007,972 was heated to 100-120 DEG  C. for 10 minutes. The mixture was then extracted with acetone and treated with CaO. After filtering, tannic acid was added to the solution and the resulting precipitate was dissolved in acetic acid and purified by chromatography on alumina.
Patent GB-1364564-A (GB)
Title: Apparatus for forming bags
IPC: B65B9/02
Filed: 1971-09-23
Abstract: 1364564 Packaging SCAN COIN AB 23 Sept 1971 44325/71 Heading B8C While jaws 25, 29 and 30 on swingers 26 are heat sealing at least one web 12 to form a bag which is then filled with coins from a counter or with a liquid, a lever 18 is moved downwardly to form the web upstream of the sealing station into a loop. When the swingers are moved apart, the weight of the bag pulls the lever upwardly while a brake 14 engages the web upstream of the loop. Crank pins on rotating discs alternatively press the swingers together against the bias of a spring 32, and the brakes 14 against the webs. Rotation of the discs is stopped while the swingers are pressed together to allow the welds to cool. Each lever 18 is part of a bell-crank lever which is pivoted by a further crank-pin optionally against the bias of a spring. An adjustable stop 46 controls the amount of movement of each lever 18 and hence the bag size. A heated wire 31 cuts a sealed bag from the next bag.
Patent GB-1244736-A (GB)
Title: Exposure control means
Inventor: STIMSON ALLEN GWYN
IPC: G03B7/083
Filed: 1968-09-18
Abstract: 1,244,736. Exposure control. EASTMAN KODAK CO. Sept. 18, 1968 [Sept. 18, 1967], No. 44334/68. Heading G2A. An exposure control circuit has a transducer 3 for controlling the diaphragm aperture according to the intensity of the lighting of an object area viewed by a photo-sensitive cell 2, and a shunt 6 connected across the transducer having a resistance dependent upon the output of the cell to control the flow of current through the transducer so that the latter regulates the admission of radiation to the medium in accordance with the logarithm of the illumination on the photo-cell. The shunt 3 is preferably a transistor, the base 6b being connected via a variable resistance 10 to a variable tapping 7 of a potentiometer 5. The transducer 3, which may be part of a galvanometer arrangement, is connected to the photosensitive cell through amplifying transistor 4, alternatively transistor 4 may be omitted, Fig. 2 (not shown). The photo-sensitive cell may be a photo-conductor as shown, or it may be a photo-voltaic cell, photo-diode, photo-transistor or a photo-sensitive field effect transistor. Vacuum tubes may be used in place of transistors.
Patent GB-1069463-A (GB)
Title: Improvements in or relating to 5,10-seco-5,19-cyclo-steroids
IPC: C07J63/00
Filed: 1963-11-11
Abstract: Novel compounds of the formulae <FORM:1069463/C2/1> <FORM:1069463/C2/2> <FORM:1069463/C2/3> <FORM:1069463/C2/4> <FORM:1069463/C2/5> <FORM:1069463/C2/6> being tautomeric mixtures of the D 1(10)2,4 5,10-seco - 5,19 - cyclo - steroids and the D 1,3 - 5, 10-methylene - 19 - nor - steroids (wherein R is OR4 or NR5R6 in which R4 is C1- 8 alkyl or cycloalkyl, or acyl, R5 is C1- 8 alkyl, aryl or aralkyl, and R6 is hydrogen, C1- 8 alkyl, C6- 8 aryl or C6- 8 aralkyl, or NR5R6 is a saturated heterocycle; X is H, C1- 8 alkyl, C2- 8 alkenyl or C2- 8 alkynyl; Y is hydroxy or acyloxy, or X and Y together are keto; R2 is H, hydroxy or acyloxy; R3 is H, methyl or a -OH, or R2 and R3 together are 16a ,17a -methylenedioxy which may be substituted by R7 and R8, R7 being C1- 8 alkyl and R8 being C1- 8 alkyl, aryl or aralkyl; R9 is H or acyl; X1 is H or halogen; and Y1 is H or b -OH or keto, with X1 being H when Y1 is H; the acyl groups containing up to 12 carbon atoms and being optionally substituted) and, generally, mixtures of 3 - R - 5,10 - seco - 5,19-cyclo - D 1(10) 2,4 - steroids and their tautomers of the androstane and pregnane series are prepared by treating the corresponding 5, 10-methylene - 19 - nor - D 1 - 3 - keto - steroids with an alcohol, carboxylic acid anhydride or amine in the presence of an acid catalyst.  Any free primary or secondary hydroxyl groups are acylated in the reaction with an acid anhydride. Free or esterified hydroxyl groups may subsequently be esterified or saponified. 11-Unsubstituted compounds may be microbiologically hydroxylated, and the resulting 11-ols may be oxidized to 11-ones or converted to the corresponding 9a -halo-11-oxygenated derivatives.
Patent GB-1393365-A (GB)
Title: Zeolites
IPC: C01B39/00
Filed: 1971-09-23
Abstract: 1393365 Zeolite AG1 IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Sept 1972 [23 Sept 1971] 44402/71 Heading C1A A zeolite AG1 having a molar composition in the range 1À05Œ0À3 M 2 O : Al 2 O 3  : 40-#7À5 SiO 2 , where M is K (or a mixture of K and Na), and a given X-ray diffraction pattern, is prepared by reacting at least one aluminium component, at least one silicon component, and at least one alkali metal component, in an aqueous medium, the sole or major silicon component being a water glass having a molar ratio SiO 2 /M 2 O of 3À5 to 4À0 (where M=K, or a mixture of K and Na), to give a reaction mixture with oxide molar ratios in one of the following ranges: and crystallizing out the zeolite from the reaction mixture. The cation(s) of zeolite AGI can be replaced by any cation(s) of metals of Groups Ia, Ib, II, III (including rare earths), VIIa (including manganese), VIII (including noble metals), and of lead and bismuth, or by hydrogen, by contacting zeolite AGI with a metal compound in aqueous solution or with a source of hydrogen ions. Alternatively the hydrogen form of zeolite AGI may be prepared by first preparing an ammonium or alkyl or arylammoniura form of zeolite AGI by ion exchange and decomposing it by heating, preferably in air.
Patent GB-951348-A (GB)
Title: Pulling dendritic crystals
IPC: C30B29/60
Filed: 1961-12-12
Abstract: 951,348. Dendritic crystals. WESTING- HOUSE ELECTRIC CORPORATION. Dec. 12, 1961 [Dec. 30, 1960], No. 44433/61. Addition to 913,678. Heading B1S. In pulling a dendritic crystal upwards from a super-cooled melt using a seed crystal having three interior twin planes and orientated as shown in Fig. 2, the outer planes are spaced from the inner plane respective distances (A and B) of 0À1-30 and 0À1-0À5 microns. Both distances are preferably 0À25-0À5 microns. Pulling may be at a rate of more than one inch per minute. Gallium arsenide may be pulled in an atmosphere of arsenic with electric heating to prevent condensation thereof.
Patent GB-1240209-A (GB)
Title: Apparatus for stacking laminar articles
IPC: B65B23/12
Filed: 1969-09-09
Abstract: 1,240,209. Stacking apparatus. T. & T. VICARS Ltd., and J. B. JENKINS. 9 Sept., 1969, No. 44505/69. Heading B8C. In an apparatus for stacking laminar articles S comprising a shoot 10, a rotatable member 14 partially projecting above the plane of the sheet 10 and having six pockets 18, the centre of rotation of the rotatable member 14 is adjustable horizontally and vertically relative to the inclined surface of the shoot 10. The articles S are stacked on a plate 58 or a conveyer. This adjustment is achieved by having the axle 16 of the rotatable member 14 mounted in slide blocks (not shown) in two movable frameworks 20, 21. Two lever arms 22, 24 are rigidly connected to the frameworks 20, 21 respectively and to another pair of lever arms 30, 32 respectively via lever shafts 26, 28 which are mounted in a rigid framework. The lever arms 30, 32 are further pivotally connected at 33, 36 respectively to screw-threaded rods 34, 40. Each rod 34 and 40 is engaged by a pair of nuts separated by spacer members 39, 45 which are fixed to the rigid framework. The inclined shoot is divided into a plurality of separate channels and at least one rotatable member 14 is associated with each of the channels.
Patent GB-1195594-A (GB)
Title: Snapper Mechanism for a Corn Harvester or the like
Inventor: MATHEWS BERNARD CARL
IPC: A01D45/02
Filed: 1967-09-29
Abstract: 1,195,594. Harvesting machines. B. C. MATTHEWS. 29 Sept., 1967 [22 March, 1967], No. 44534/67. Heading A1F. A corn harvester has a plurality of upwardly sloped slots 47 into which the corn stalks are moved by chains 45 and is characterized by a pair of wheels 58 arranged beneath the slot to present a forwardly facing bite and thus to engage the stalks and move them downwardly into an upwardly facing bite formed between the wheels and a roller 62. The roller pulls the stalks downwardly to detach the cobs by engagement with the sides of the slots 47. The wheels 58 may have co-operating teeth 60 and are driven by gears 56 on either side of the roller 62. In an embodiment the wheels have roughened surfaces instead of the teeth 60 and are driven through a shaft which may be flexible. In a further embodiment the wheels have rubber tyres which engage the roller. The distances between the stalk receiving slots are altered by adjustment of the separate units 15 along bar 18. (For Figures see next page.)
Patent GB-1354217-A (GB)
Title: Processes and compositions for the treatment of ferrous and zinc surfaces
IPC: C23C22/80
Filed: 1972-09-28
Abstract: 1354217 Cleaning ferrous or zinc surfaces prior to phosphating AMCHEM PRODUCTS Inc 28 Sept 1972 [30 Sept 1971] 44729/72 Headings C7E and C7U A ferrous or zinc surface is cleaned and activated prior to phosphating with an alkaline (pH not less than 10) solution containing a colloidal Ti salt, and from 0À3 to 15 g/l of a component consisting of an ortho and metasilicate with a polyphosphate and/or pyrophosphate. The ratio of metato ortho-silicate being from 1 to 5:1. The alkali may be sodium carbonate or hydroxide or trisodium phosphate. The solution may also contain wetting or foaming agents. After cleaning with the solution, and contacting with zinc phosphate, the surface may be given a chromate rinse. The zinc phosphating bath may comprise (by weight per cent) zinc oxide 12À2, nickel oxide 1À4, 75% phosphoric acid 58À0, sodium chlorate 3À8, water 24À6. Sodium nitrite may also be added.