baber/WOPTO huggingface dataset:
Patent GB-1119691-A (GB)
Title: Improvements relating to load-lifting vehicles
Inventor: HOLT JOHN BRIGGS
IPC: B66F9/06
Filed: 1964-06-23
Abstract: 1,119,691. Masted lift trucks; vehicle load elevators NATIONAL RESEARCH DEVELOPMENT CORP. 22 Sept., 1965 [23 June, 1964], No. 25980/64. Headings B8E and B8H. The mast of a lift truck comprises a pair of inwardly facing channel-section uprights 13 which are secured to the truck chassis and which are provided at their lower ends with pivoted extensions 15. When the fork carriage 22 is positioned, at least in part, on the extensions and when the extensions are tilted by means of a ram 18, the fork arms 21 are directed downwardly, Fig. 5 (not shown), to facilitate engagement with the load. The fork carriage 22 is raised by means of a ram 25 and is adapted to raise a control station 30 which may be locked at selected raised positions. The fork arms 21 are provided with power driven rollers 28 whereby loads may be transferred between the fork arms and an endless chain conveyer 11 on a load carrying portion of the truck. Extensions may be pivotally mounted at the upper ends of the uprights 13, Fig. 6 (not shown).
Patent GB-1533373-A (GB)
Title: Recovery and purification of iridium
IPC: C22B11/00
Filed: 1977-06-21
Abstract: 1533373 Recovering iridium values NATIONAL INSTITUTE FOR METALLURGY 21 June 1977 [21 June 1976] 26002/77 Heading C1A Iridium is separated from other metals in solution by conversion to a tetravalent iridium chloro anion complex which is absorbed by an anion exchanger, converted to the sulphato chloro trivalent iridium complex by treatment with aqueous SO 2  solution and thereafter eluting the iridium values from the resin.
Patent GB-1518335-A (GB)
Title: Motor vehicle boot lid provided with a remotely controlled release device
IPC: E05B47/02
Filed: 1975-06-18
Abstract: 1518335 Release device G. S CRICHTON R HOWELL and E McDOUGEL 18 June 1975 [19 June 1974] 26015/75 Heading E2A In combination with a boot lid of a motor vehicle, said boot lid having a locking device comprising a catch, a remotely controlled release device for the catch, the release device comprising a solenoid 10, which is fitted on the boot lid, and an elongate connecting link of adjustable length which is hook shaped at each end, one end being connected to the armature 12 of the solenoid 10 and the other end connected to a trip lever 17 of the catch of the locking device.  In an embodiment a flat member 13, Figs. 1 and 2, extends from the armature 12 and has a slot 14 therein which receives a member 15. A spring 16 encircles the member 13 and is compressed between the armature 12 and the member 15, the latter being adjacent a hooked end of a rod 18. An adjustment member 19 is mounted between the rod 18 and another rod 18, the latter being connected to the lever 17. In another embodiment the armature 12 has a stud 21 to which a hooked end 23 of a flexible member 22 is attached, the other hooked end 23 being secured to the lever 17.
Patent GB-641222-A (GB)
Title: Improvement in manufacture of modified starch
IPC: C08B31/08
Filed: 1946-08-29
Abstract: A modified starch in the physical form of ungelatinized starch granules having the property of inhibited gelatinization when dispersed in water under normal gelatinization conditions is obtained by reacting ungelatinized starch with an ether forming reagent which contains two functional groups which form ether linkages with two hydroxyl groups of the starch molecules. Ether-forming reagents specified include aliphatic dihalides or epoxy halides such as propylene dichloride, dichloropentane, ethylene dibromide, glycerol dichlorohydrin, dichlorobutane, epichloro- and epibromo-hydrin.  It is preferred that the starch be alkaline during the reaction which may be conducted either in aqueous solution or in the dry. Gelatinization prohibitors such as sodium sulphate may be present and the starch used may be converted before or after treatment as by forming a British Gum. In examples, epichlorohydrin in varying proportions is added to weak aqueous sodium hydroxide dispersions of (1) tapioca starch, (2), (3), (4) corn starch, (14) 60 fluidity acid-converted corn starch and (15) 40 fluidity chlorinated corn starch at room temperature for fifteen hours when the product is neutralized, filtered off and dried, in (5) glycerol dichlorohydrin is added to a weak aqueous sodium hydroxide dispersion of corn starch, in (6) dry corn starch, mixed with soda ash, sodium methylate, trisodium phosphate or borax and dichloropentane is heated at 75-85 DEG  C. for 20 hours when the cooled product can be used with or without purification and in a similar fashion tapioca starch is treated with (7) propylene dichloride and (8) epichlorohydrin at 60 DEG  C. and corn starch with (9) epichlorohydrin at 75 DEG  C., in (10) tapioca starch is suspended in weak aqueous sodium hydroxide solution for 4-5 hours, filtered off, dried and treated with glycerol dichlorohydrin at 65 DEG  C. for 6 hours, in (11) corn starch mixed with trisodium phosphate is heated at 400 DEG  F. to convert to a British Gum, sodium carbonate and epichlorohydrin added when the heat is turned off and the product allowed to stand for 1/2 -1 hour, in (12) the product of (3) is converted to a British Gum by heating with trisodium phosphate and in (13) corn starch pretreated with alkali is blended with sodium methylate and 1,4-dichlorobutane and heated at 40-50 DEG  C. for 24 hours in a sealed container.ALSO:Food preparations comprising salad dressing, puddings and pies contain starches modified by treatment with an ether-forming reagent which contains two functional groups (see Group IVb).
Patent GB-921609-A (GB)
Title: Improved multivibrator circuits utilizing transistors
IPC: H03K3/012
Filed: 1959-07-29
Abstract: 921,609. Transistor bi-stable circuits. SPERRY RAND CORPORATION. July 29, 1959 [Aug. 5, 1958], No. 26066/59. Class 40 (6). [Also in Group XIX] In a bi-stable circuit comprising two transistors having corresponding input and output electrodes cross-coupled, triggering pulses are applied to tapping-points on resistors connected in series in the cross-coupling paths. Assuming transistor 14 is to be non-conducting and transistor 12 conducting, rectifier 24 will be biased lightly non-conducting and rectifier 26 heavlily so. Accordingly a positive input pulse applied to terminal 28 will pass through rectifier 24 but not 26. The leading edge of this pulse will pass through capacitor 78 to the base of transistor 12 and through capacitor 76 to the output lead 20 so as to produce a rapid positivegoing voltage at these points. Due to the leading edge applied to the base and the following body of the pulse transistor 12 will become non-conducting and transistor 14 conducting, regenerative action taking place rapidly due to energy fed through capacitors 110 and 85 and through capacitors 76 and 88. Reversal of the state of the circuit which thus occurs reverses the biasing conditions on rectifiers 24 and 26 so that next pulse passes through rectifier 26 and not 24. Limitation of the voltage spike fed to the bases through the capacitors 76 and 88 is effected by diodes 126 and 128 which are biased by a potential derived from the common emitter impedances 140 and 142 of a number of circuits connected in parallel at point 134 (Fig. 5, not shown). Limitation of the negative potential applied to the bases is effected by diodes 38 and 40. Triggering pulses may alternatively be applied alternately to terminals 36 and 34. Capacitors 76 and 88 and resistors 30 and 32 may be omitted.
Patent GB-1357497-A (GB)
Title: Spark-gap assembly for surgediverters
Inventor: MEIER E
IPC: H01T1/04
Filed: 1972-06-05
Abstract: 1357497 Lightning arresters BBC BROWN BOVERI & CO Ltd 5 June 1972 [7 June 1971] 26144/72 Heading H2H [Also in Division H1] A spark gap assembly 1 for a lightning arrester comprises arc blow out chambers 5a, 5b into which an arc in a spark-over chamber 3a can be blown via respective slits 4a, 4b leading from the spark-over chamber to each blow out chamber, and a central electrode 6 for splitting an arc into partial arcs which are magnetically rotated between the central electrode and a ring electrode 7 in each blow out chamber. A pair of assemblies 1 are connected to the blow out coils 2 and impedances 11 located in recesses 10. Each chamber 3a contains a pair of spark gap electrodes connected by studs 8a, 8b to the electrodes 7. Opposing projections and depressions 9c are concentrically arranged on the walls of each blow out chamber 5a, 5b.
Patent GB-744710-A (GB)
Title: Improvements in or relating to collapsible projection screens
IPC: G03B21/58
Filed: 1953-09-24
Abstract: 744,710. Projection screens. DENTON, J. M. Sept. 21, 1954 [Sept. 24, 1953], No. 26273/53. Class 97 (1). In a collapsible screen one of the screen battens is mounted in a holder and means are provided for moving the ends of the batten in the screen plane to tension the screen edge. In the form shown one end of the screen 2 is secured to a batten 1 in a tubular holder 3 having a longitudinal slit for the screen. The centre of the batten is pivoted at 4 its ends being guided on pins 3a. The batten ends may be bent upwardly by wedges 5 movable by screws 6. In other forms screws act directly on the batten ends, either pulling from above or pushing from below. In the form shown in Fig. 4 the batten is acted on by cams 12 operated by levers 13. The cams and levers may be replaced by bell-crank levers. In another form bolts pass through the batten ends and through vertically slotted holes in the casing 3 so that they may be adjusted and then tightened.
Patent GB-368688-A (GB)
Title: Process and apparatus for the suppression of hunting with remote controls
IPC: G05D3/12
Filed: 1930-09-03
Abstract: 368,688. Control of D.C. motors. GES. FUR ELEKTRISCHE APPARATE, Marienfelde, Berlin. Sept. 3, 1930, No. 26326. Convention date, Sept. 5, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (iii).] Following movements of control member ; varying E.M.F.-In a follow-up system, hunting is suppressed by always moving the position at which the driving motor would come to rest, in a direction opposite to that of the hunting movement. When the receiver 1 of the system is moved, it carries a contact arm 4 over the resistance arms 9, 10, of the Wheatstone bridge formed by resistances 9, 10, and a voltage divider 23. The out of balance current passes through a motor 13 which moves an object 2, and at the same time the toothed crown 17 carrying the resistances 9, 10, thus finally rebalancing the bridge. To prevent hunting an additional contact arm 5 is frictionally mounted on the receiver shaft so that when the difference between the positions of the receiver 1 and the object 2 is increasing, it makes contact with one of two contacts 18, 19, and short circuits part of the resistance of the potential divider 23, and so moves the bridge balance point 32 in a direction opposite to that of the hunting movement. In a modification, Fig. 2 (not shown), a difference between the motor and the receiver excites the field of a Ward Leonard generator which supplies the motor, and additional means are provided to vary the excitation so that the point at which no current would be supplied to the motor, is moved in a direction opposite to that of the hunting movement.
Patent GB-534939-A (GB)
Title: Improvements in or relating to the manufacture of aminonitriles
IPC: C07C255/24
Filed: 1939-09-21
Abstract: 534,939. Amino-nitriles. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 21, 1939, No. 26349. Convention date, Sept. 24, 1938. [Class 2 (iii)] [Also in Group III] Amino-nitriles are made by catalytic hydrogenation of acyclic #-dinitriles having at least 4 carbon atoms between the nitrile groups, the process being stopped when half the amount of hydrogen that would saturate both nitrile groups has been absorbed. Preferably the catalyst is nickel alone or on a support such as kieselguhr alumina or magnesia. The nickel may be reduced from nickel compounds for instance by metallic sodium or may be precipitated on to supports. Other hydrogenating metals may be used, especially those of the iron group and promoters such as cadmium and chromium may be added. If a solvent is employed ammonia is preferred but water, alcohols, ethers and hydrocarbons may be used, dioxane and toluene being mentioned. The temperature may be 90-130‹ C. and the pressure 500-4,000 lb. per square inch. .In examples (1) sebaco-nitrile mixed with liquid ammonia is hydrogenated with a nickel catalyst on alumina yielding 10-amino-caprinitrile ; (2) adiponitrile mixed with liquid ammonia is hydrogenated with a nickel catalyst on alumina. This catalyst is prepared as follows :-A ground nickel-aluminium alloy containing equal parts of the two metals is added in portions to boiling sodium carbonate solution ; the settled sludge is washed with hot and then cold water, then with ethanol, and is stored and used as a paste in methanol. The process may be effected in the vapour phase in the absence of ammonia for instance at 275‹ C. and atmospheric pressure.
Patent GB-151014-A (GB)
Title: Improvements relating to photographic sensitisers
IPC: G03C1/047
Filed: 1920-09-14
Abstract: 151,014. Amiot, J. Sept. 15, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Plates, films, and papers; sensitive coatings, preparing.-A sensitive preparation for enabling any surface to be sensitized by a single cold paint. ing or application is obtained by the addition to a solution of a soluble silver salt of a colloid or a mixture of colloidal matter in proportions suitable for stopping the imbibition of the product by the surface while leaving it fluid at the ordinary temperature. A solution of acid citrate or silver is mixed with a solution of caseinate of soda and to the mixture is added a suitable proportion of gelatine. A small quantity of resorcin may also be added and gives various tints to the printed positive.
Patent GB-1039386-A (GB)
Title: Improvements in manufacture of carbon black
IPC: C09C1/50
Filed: 1963-07-04
Abstract: Carbon blacks having oil absorption values in excess of 24 and structure indices of over 300 are made from normally non-gaseous hydrocarbons by injecting the hydrocarbons in the form of a spray into a localized region of a furnace, introducing coaxially around said spray a quiescent current of a free oxygen-containing gas in a proportion sufficient to maintain only partial combustion of said hydrocarbons, subjecting the hydrocarbons to a rapid partial combustion so as to form a flame in said localized region, and passing the products emanating from the flame through a zone of the furnace at carbon-black-forming temperatures in a non-turbulent state.  Substantial amounts of products of combustion or pyrolysis of hydrocarbons or gases of a reducing nature are prevented from contacting the hydrocarbon spray and free oxygen-containing gas prior to mixture thereof and during partial combustion of the spray.  The free oxygen-containing gas may be air and it may be caused to flow around the spray at a relatively lower velocity.  The furnace may be at 1100-2500 DEG  F. The hydrocarbon may be preheated to 220-500 DEG F. before being sprayed into the furnace.  The carbon black formed in the furnace may be further heat-treated, e.g. by mixing with hot gaseous products of combustion or with a free-oxygen-containing gas so as to generate additional heat by combustion.  The hydrocarbon feedstock may comprise at least 50% by weight of aromatic hydrocarbons.
Patent GB-1007618-A (GB)
Title: Improvements relating to independent front wheel suspension of motor vehicles
IPC: B60G3/20
Filed: 1963-07-04
Abstract: 1,007,618. Vehicle suspensions. DAIMLERBENZ A.G. July 4, 1963 [July [5, 1962], No. 26584/63. Heading B7D. An independent front wheel suspension of a motor vehicle comprises a pair of swinging arms 15 and 16 pivotally mounted on supports carried by the frame 27 so that their pivot axes a and b, as viewed in elevation, are inclined downwardly towards the rear of the vehicle or converge towards one another, and as viewed in plan, cross one another. The springs 30 may be coil, pneumatic or hydraulic. As shown in Figs. 1 and 2, the front of the vehicle is to the left.
Patent GB-1438731-A (GB)
Title: Copying cylinder for copying apparatus
IPC: G03G21/10
Filed: 1974-06-17
Abstract: 1438731 Contact printing HOECHST AG 17 June 1974 [19 June 1973] 26670/74 Heading G2A An internally illuminated rotary contact printing cylinder 1 has an internal wiper (which may be in two or more sections) extending across substantially the whole width of the cylinder outside the illumination zone, which is provided by a lamp 5 and a reflector 6. The original and copy material may be fed by a band 3 (as shown) or rollers. The wiper may be of absorbent or brush material and may be a fixed blade or a fixed or rotary roller (rotating at a different speed or different direction (as shown) from the cylinder). The bristles of a brush roller 7 are preferably set at an acute angle to the longitudinal axis of the roller. It may be cleaned by one or more earthed suction nozzles 9 projecting into the bristles and extending along the length of the roller. A second wiper may be provided outside the cylinder (e.g. a brush roller 8, as shown).
Patent GB-501904-A (GB)
Title: Improvements relating to reciprocatory feed mechanisms for metal working machines
IPC: B21D43/00
Filed: 1938-09-14
Abstract: 501,904. Feeding tubes to tube expanders &c. SINGER, F. Sept. 14, 1938, No. 26789. [Class 83 (iv)] In a feed mechanism for a tube expanding or other machine, a carriage g is reciprocated by levers c against the pressure of springs d. A collet j, positioned by simultaneously moved jaws h, grips and feeds the tube through balls or rollers n coacting with wedge surfaces q on the carriage. In a modification, Fig. 4, (not shown), cam-actuated gags apply pressure to the jaws and other cams effect the feeding. In a further modification inclined surfaces on the jaws h provide a clamping pressure normal to that of the jaws.
Patent GB-1335863-A (GB)
Title: Weight-compensated instrument tables for ophthalmological apparatus
IPC: G12B5/00
Filed: 1971-04-19
Abstract: 1335863 Counterbalanced tables R RODENSTOCK [trading as OPTISCHE WERKE G RODENSTOCK] 19 April 1971 [5 March 1970] 26798/71 Heading A4H [Also in Division G2] An instrument table 1, 3, 4 for ophthalmological apparatus is vertically slideable on a column 5 by a spindle arrangement 16, and the weight of the table and apparatus are counterbalanced by a spiral torsion spring 14 secured between a cylindrical housing 15 and the shaft 13 of an eccentric or spiral drum 12, a cable 9 wound on drum 12 passing over pulleys 11, 10 and being connected to the free end 8 of an extension 7 of table part 1 lying on a vertical line through the centre of gravity of the table. Housing 15 can be rotated about shaft 13 to pre-stress the spring 14. The spring arrangement may be accommodated inside the base plate 6. The drum 12 converts the variable spring force into a constant cable tension.
Patent GB-216784-A (GB)
Title: Improvements in or relating to combined steam and internal combustion locomotives
IPC: B61C7/00
Filed: 1923-10-26
Abstract: 216,784. Buchli, J. June 26, 1923, [Convention date]. Railway locomotives, steam and internal-combustion engine, have the cylinders b of the latter disposed with their axes at right-angles to the longitudinal axis of the locomotive and their crank-shafts c parallel, these shafts being geared to an axle g coupled by rods h to the wheels i driven by the steam cylinders. The cylinders b may be placed beneath, in line with, or at the sides of the boiler a, or the boiler may be formed in two parts, one on each side of a single row of cylinders. In a further modification the cylinders may be placed on one side of the vehicle and the boiler on the other side. The cylinders are of such a height as not to interfere with the view of the driver, and they may have cooling jackets connected at their upper and lower parts with the steam and water spaces of the boiler. The shafts c are coupled to the axle g by gears d, d', f, f<1> which may have suitable clutches, means being provided to indicate when the wheels synchronize.
Patent GB-372675-A (GB)
Title: Improvements in or relating to gravity bombs
IPC: F42B10/06
Filed: 1931-09-28
Abstract: 372,675. Bombs. WAHRDSTROM, J. W., 7, Bernhardsgatan, Helsingfors. Sept. 28, 1931, No. 26968. [Class 9 (i).] A bomb intended to be dropped from an aircraft is made in two parts : a rigid head portion 1, Fig. 1, and a rigid tail portion 2 provided with vanes 3 and connected to the head portion by a flexible joint, so that when the bomb is falling the axis of the tail portion is automatically adjusted to pass through the centre of gravity of the bomb as a whole. The tail portion may transmit rotation to the head portion, and the transmission device may be made to disengage if the air pressure on the tail portion exceeds a predetermined value. The flexible joint between the head and tail portions may be a chain or cord, or any form of universal joint. As shown in Fig. 4, the head portion 1 has a stem 5 provided with lugs 10 fitting loosely in slots 14 in the tail portion 2 to transmit rotation from the tail to the head ; and a ball 7 slidable on the stem 5 is pressed on a spherical seat 8 on the tail by a spring 15 to provide the flexible joint between the tail and the head. If the air pressure on the tail becomes excessive, the spring 5 is compressed further and the lugs 10 disengaged from the slots 14.
Patent GB-1312419-A (GB)
Title: Pneumatic vehicle tyre
IPC: B60C9/26
Filed: 1971-04-19
Abstract: 1312419 Pneumatic tyres CONTINENTAL GUMMI-WERKE AG 19 April 1971 [30 April 1970] 27014/71 Heading B7C A pneumatic tyre has a folded belt 4, Fig. 1, radially beneath the tread, said belt having a fold on one side of the mid-circumferential plane M and another fold 10 on the other side of said plane, the free edge portions of the belt overlapping at 11 adjacent the fold 10 such that the axially outer edge of the overlap lies between 0À05B and 0À2B from the fold, B being the width of the belt. The belt is made from parallel cords, wires or steel cables which are laid diagonally such that those in one layer cross those in the other, and make angles of between 5 and 30 degrees with the mid-circumferential plane. The belt may enclose one or more unfolded plies such as 7, or a further folded ply (Fig. 2, not shown), or be folded on itself as shown in Fig. 5.