baber/WOPTO huggingface dataset:
Patent GB-715856-A (GB)
Title: Composition and method for the control of undesired vegetation
Filed: 1952-05-29
Abstract: Dichlorophenoxy - alkanols of the general formula <FORM:0715856/IV (b)/1> wherein n is 2 or 3 are prepared by reacting an alkali metal phenolate, for example sodium or potassium 2 : 4-dichlorophenolate, with a monohaloaliphatic alcohol, for example ethylene chlorohydrin, 1-bromopropanol-3 or propylene bromohydrin.  They may alternatively be produced by reacting 2 : 4-dichlorophenol with ethylene or propylene oxide in the presence of a catalyst for example sodium hydroxide or sulphuric acid.  The examples specify the use of 1 - (2 : 4 - dichlorophenoxy) - 2 - ethanol and -propanol in herbicidal compositions.ALSO:A root inhibiting composition comprises a compound of the formula:  <FORM:0715856/VI/1> wherein n is 2 or 3, and a finely divided inert solid, an organic solvent, a dispersing agent, or an aqueous emulsion.  Solids specified are talc, pyrophyllite, attapulgite clay, gypsum, diatomaceous earth, Fuller's earth and bentonite.  Wetting, sticking and emulsifying agents may be added to dust formations which may be employed as such, or as dispersions in water.  The active ingredient may be compounded with a dispersing agent, without the inclusion of a finely divided inert solid, and the mixture employed as a spray concentrate.  Liquid carriers include aqueous emulsions of petroleum distillates and fatty oils and solvents such as toluene, petroleum oils, acetone, lower aliphatic alcohols, liquid halohydrocarbons and synthetic organic oils. Wetting, dispersing and emulsifying agents specified are: alkali and alkaline earth metal caseinates, blood albumen, alkali metal salts of long chain aliphatic sulphates, partially neutralized sulphuric acid derivatives of petroleum oils and naturally occurring glycerides, sulphonated derivatives of phenols and aromatic acids and their salts, soaps, condensation products of alkylene oxides with phenols and organic acids, alkanolamines, and complex ether-alcohol and esters.  The examples specify the use of the alkyl aryl sulphonate "Nacconol," the sodium salt of the sulphonated naphthalene formaldehyde condensate "Daxad" (Registered Trade Mark), the di-butyl-phenyl monoether of polypropylene glycol (containing from 8 to 12 -C3 H60-units), an oleic acid ester of polyethylene glycol, and a modified polyglycol mixed ester petroleum sulphonate.
Patent GB-1206331-A (GB)
Title: Improvements relating to photographic exposure control systems
Inventor: GROSS THOMAS
IPC: G03B7/083
Filed: 1968-03-21
Abstract: 1,206,331. Photographic exposure control apparatus. INTERNATIONAL POLAROID CORP. March 21, 1968, No.13734/68. Heading G2A. A photographic exposure control apparatus includes a plurality of photo-sensitive elements which receive light from separate portions of a scene to be photographed, an exposure control circuit including the elements and exposure control means responsive to the output of the control circuit to vary the exposure according to the light received from the separate portions. As shown, photo-conductive cells, e.g. cadnium sulphide cells, 46, 47, 48, and 49 receive light through an apertured member 80, the cells 46, 47, 48 and 49 being connected in series by diagonal conductors 75, 76 respectively while conductors 77 and 78 provide parallel connectors between the diagonal conductors. The cells under conductors form a network 5 connected to a capacitor C to form a timing network 44 connected to a Schmitt trigger circuit 43, having transistors Q 1  and Q 2 . A sliding plate shutter has opening and closing blades 19 and 20. In operation, shutter release 30 is disengaged from pin 26 to release opening blade 19, thereby closing switch S 1  and opening S 2  to initiate timing by network 44 which after a delay depending on illumination of the cells 46, 47, 48, 49 causes an electromagnet 37 having a coil 38 to release a keeper 40 on closing blade 20. The blades 20 are reset by manual actuation of a resetting lever 34.
Patent GB-681398-A (GB)
Title: Improvements in medicinal compositions
IPC: A61K31/00
Filed: 1950-06-02
Abstract: A therapeutic product orally active against pernicious anemia consists of pure vitamin B12 and animal digestive tract mucosa. Duodenal mucosa or the water-soluble polypeptide fraction thereof is preferably employed.
Patent GB-275133-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/02
Filed: 1927-05-25
Abstract: 275,133. Maatschappij tot Vervaar diging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, and Lammeren, W. P. van. May 25, 1927. Cutting slices in succession. -A clamp bar for a slicing- machine is locked on its upright, or each of its uprights, by a spring which is coiled around and normally clutches the upright, but which can be released therefrom at will. As shown in the Figures, the clamp bar 7 is pivotally connected to sleeves 3, 4 slidable on uprights 1,2. The sleeves are recessed at 11 to receive coil springs 12, 13, of opposite hands, the spring 12 of the sleeve 3 having its out-turned ends 12<a>, 12<b>, disposed in triangular apertures 14<a>, 14<b> in the sleeve, and the spring 13 having its ends 13<a>, 13<b>, in apertures 15<a>, 15<b> in the sleeve 4. The ends 12<b>, 13<a> are attached to handles 16, 17 which are flanged at 16<a>, 17<a> to conceal the aperture. The springs 12, 13 are of slightly smaller diameter than the uprights and thus normally clutch the uprights. The spring 12 is released, for movement of the sleeve 3, by pulling the handle 16 until the end 12<a> moves into the slotted portion 14<c> of the aperture 14<b>. The spring 13 is released by a knob 19<a>, attached to a rod 19 journaled in bearings 20 on the bar 7, the rod 19 abutting against the handle 17. By pressing with the thumb on the knob 19<a> the spring end 13<a> moves into the slotted portion 15<c> of the aperture 15<a>, and the spring and sleeve 4 are released. The upward pressure exerted by the meat brings the inclined faces 14<d>, 15<d> of the apertures 14a, 15<a> against the spring ends, and causes the spring to grip tighter. Downward pressure, e.g. the weight of the bar 7, brings the inclined faces 14<d>, 15<d> of the apertures 14<b>, 15<b> against the spring ends 12<b>, 13<b> and also causes the springs to grip tighter. The clamp bar may have two handles 8, or the sleeves may each have a handle provided with means for releasing the associated spring.
Patent GB-974548-A (GB)
Title: Machine for the tamping of concrete or the like
IPC: B28B3/02
Filed: 1963-04-09
Abstract: 974,548. Tamping concrete. R. HEINZ. April 9, 1963 [April 28, 1962], No. 14031/63. Heading B5A. A machine for tamping concrete and the like comprises a hoisting and lowering device attached to a carrier frame 1 to which is attached via an intermediary plate 3 poles 4, 5 of electromagnets, the armature of which forms the ramming plate 2. The plate 2 may be provided with projections 8, 9 which engage corresponding recesses in the magnetic poles 4, 5 to ensure definite guiding of the plate.
Patent GB-1431582-A (GB)
Title: Bulk material containers
IPC: B65D88/16
Filed: 1973-04-03
Abstract: 1431582 Portable containers; bags; flexible skips F NATTRASS and P J NATTRASS 29 March 1974 [3 April 1973] 14058/74 Divided out of 1431581 Headings B8D B8K and B8H A bulk storage bag is provided with a replaceable sheet 9 of polyethylene, polypropylene, polyethylene terephthalate, or canvas overlying an aperture 8 in the base of the bag so that the bag contents may be released by cutting through the sheet, and the bag reused by replacing the cut sheet with new sheet. At least 50%, preferably 80%, of the area of the sheet is in contact with the bag material to prevent the sheet being pushed out of the hole by the contents. The bag may be formed of woven polypropylene material and provided with a lining, lifting loops 4, and a draw-string closable aperture in a top cover 6 as described in Specification 1,431,581.
Patent GB-221252-A (GB)
Title: Improvements in or relating to cinematographic cameras
IPC: G03B19/18
Filed: 1923-05-28
Abstract: 221,252. Bourdereau, A. May 28, 1923. Kinematograph apparatus.-A camera is provided with three spindles to which the operating crank may be attached; one turn of the crank produces a different number of exposures in accordance with the spindle to which attachment is made. In the construction shown, spindles 10, 11 and 12, to each of which the crank may be attached, are geared together so that one turn of each produces respectively one, four, and eigh exposures. The film is intermittently fed by a single arm 18 having two teeth, the arm being pivoted at 19 to a link 21 actuated by a counter weighted crank 22 and slotted so as to slide on a fixed screw 21<1>. The arm 18 is also linked to a fixed pivot 24 and is disengaged from the film at the end of a feeding stroke by a cam 25. The counterweight on the crank 22 is sufficient to bring the feed teeth out of engagement with the film when the camera is not being operated.
Patent GB-445653-A (GB)
Title: Process and apparatus for the manufacture of coloured glass
IPC: C03B5/173
Filed: 1935-05-14
Abstract: 445,653. Glass manufacture. SOC. ANON. HOLBREVER, 1, Rue Franþois 1er, Paris. May 14, 1935, Nos. 14071 and 14072. Convention dates, June 5, 1934 and April 13, 1935. [Class 56] A process for the continuous production of homogeneous coloured glass consists in adding colouring material to a basic glass as it flows through a channel of varying depth from the furnace to a feeder or other distributing device, and homogenizing the mixture by heating or stirring, or both, in its passage to the feeder. The basic glass flows from a tank furnace F through a forehearth having its front end fitted with a feeder A of any suitable type. The forehearth is longer than is usually employed and it comprises a section 1 having an opening 2 through which colouring matter, preferably strongly-coloured molten glass, is introduced from a receptacle 3. Gates or bridges 4, 5 are arranged between the section 1 and the tank F to cause the basic glass to flow into the forehearth through its lower part, and to prevent the coloured glass from flowing backwards into the tank. The mixture of glass in the section 1 is heated by suitable burners to render it fluid, and it is stirred and mixed by rotating stirrers 6 which are formed with projecting ribs. After leaving the section 1, the mixed glass passes under bridges 14, 16 and is heated in the space 15 between these bridges by means of suitable burners. Outlet holes may be provided between the bridge 16 and the feeder to allow the forehearth to be drained, particularly when changing the colour of the glass to be produced. Various arrangements of the bridges and the flow channels are described in the Specification, and in some cases the rotary stirrers are dispensed with. In these cases, the mixed glass is homogenized by exposing it to the heat from a burner while flowing in a relatively thin stream in a shallower part of the flow channel. The tank F may be fitted with more than one forehearth in order that glasses of different colours may be produced simultaneously.
Patent GB-497137-A (GB)
Title: Improvement in rubber compositions
IPC: C08L21/00
Filed: 1938-05-11
Abstract: In making a rubber mix including artificial resin, which is to be hardened, as for example during an eventual vulcanization, the mix is cooled after any step in the processing operations involving an increased temperature which would tend to harden the resin.  Further precautions include adding the resin as the last ingredient when mixing in fillers and controlling the mastication or other operations so that the mix is exposed to hardening temperatures for as short a time as possible.  The resin may be a partly condensed phenol-aldehyde.ALSO:In making a rubber mix including a natural or artificial resin, which is to be hardened as for example during an eventual vulcanization, the mix is cooled after any step in the processing operations involving an increased temperature which would tend to harden the resin.  Further precautions include adding the resin as the last ingredient when mixing in fillers, or where the resin is one such as shellac which is hardened by such basic oxides as zinc or magnesium oxides or lime, adding the basic oxides as the last ingredient, and controlling mastication or other operations so that the mix is exposed to hardening temperatures for as short a time as possible.  The resin may also be a partly condensed phenol-aldehyde.
Patent GB-1177179-A (GB)
Title: Electro-Hydraulic Stabiliser for Jet Propelled VTOL Aircraft
IPC: B64C29/00
Filed: 1967-03-28
Abstract: 1,177,179. Controlling jet-propelled VTOL aircraft. BÍLKOW G.m.b.H. 28 March, 1967 [25 March, 1966], No. 14124/67. Heading B7G. [Also in Division G3] A jet-propelled VTOL aircraft 33 having propulsion units A, B, C symmetrically disposed about the roll axis, has a chain of levers connecting the joystick and the thrust regulators of units A, B, C, and means acting on that chain to detect and compensate for out-of-balanco moments. The means includes two rotational accelerators, e.g. 31 and 32 to detect rolling and pitching accelerations, from which vectorial electrical signals above a threshold value are passed by switches 6, 5, 7 to operate solenoid valves 23, 20, 27 in an hydraulic circuit to control cylinders 10, 8, 9 which act to lock points (e.g. plate 11, points 41 and 42) in the linkage. The hydraulic circuit contains further pressure operated valves 19, 21, 22, 24, 25, 26, 28, 29, 30 which act to prevent more than one piston of the cylinders 8, 9 and 10, from being free to move at any one time. One of the accelerometers 31 acts on the linkage via a servomotor 3. In the embodiment shown the linkage from the joystick to units A comprises link 17, lever 2, and link 34, and to units B and C, link 18, lever 14 with a slot 36 allowing it to slide past pin 37, and links 35. In the event of an engine failure in unit A, the pitch accelerometer 31 will cause the servo-valve 3 to raise the rod 4, and will release the cylinder 10 allowing plate 11 to move relative to the aircraft. Rod 34 will then be pushed, and plate 11 pulled, pulling rods 35 into a skew position, as in Fig. 4 (not shown). In the event of an engine failure in unit C, the accelerometer 31 will lower rod 4 and accelerometer 32, acting via switch 5 will release cylinder 8. Rod 34 will be pulled, head 43 on rod 4 will push pivot point 45, and the linkage pivoting about fixed points 42 and 37 will tilt link 14 anticlockwise, as in Fig. 5 (not shown).
Patent GB-315944-A (GB)
Title: Improvements relating to paper carriages for typewriting-machines
IPC: B41J19/74
Filed: 1928-05-14
Abstract: 315,944. Alexander, F. May 14, 1928. Paper carriages and supports; platen-shift mechanism; sheet-feeding arrangements.-A shift frame D guided vertically in a carriage C is provided with yielding mounted platen P and cooperating feed-rollers, and means is provided for lifting the platen to release it from the feedrollers. Preferably the platen shaft is mounted in sliding bearings 35 engaging springs 36, and is lifted by means of finger-levers 42 having pins co-operating with the curved ends 39 of levers 40 which engage hubs 38. The platen shaft is guided by slots 14 in the carriage and engages forked levers 11. pivoted on the carriage and connected by a rod 12 engaging a member M connected to a shift key. The carriage-base 5, Fig. 2, is provided with rollers 8 which run in V-guides B on the framework A and are mounted on the bent ends of adjustable plates 7 secured by means of screws 9, alternate pairs of rollers engaging the guides at the top and bottom. Tabulating - mechanism; carriage - releasing arrangements.-A tabulating-stop bar 18, Fig. 2 is detachably mounted in slotted brackets 15 on the carriage C and is retained by means of sliding catches 19 which engage slots in the carriage. A feed-rack 30 is secured to arms 24 pivoted on the stop-bar, and is raised for carriage-release by means of finger-levers 26 having hooks 29 engaging the feed-rack. Margin stops; alarms.-A rack 50, Fig. 1 on the above-described shift frame D supports adjustable stops 53, 54 provided with paper-fingers 52. The stop 54 has lugs co-operating with a pivoted plate 55 on a lever 57 for operating a bell-hammer 61. Line-spacing mechanism.-The platen P is provided at each end with line-spacing mechanism comprising a ratchet-wheel 31 and a pawl 32, the line-spacing lever 33 being adapted to be mounted at either end of the carriage. Detent-rollers 48 engaging the ratchet-wheels are carried by springs and are releasable bv mean, of a rock-shaft 47 operated by finger-levers 46.
Patent GB-119517-A (GB)
Title: Process of Oxidising Aromatic Hydrocarbons and the Lower Oxidation Products thereof.
IPC: C07C51/265
Filed: 1917-10-01
Abstract: 119,517. Selden Co., and Gibbs, H. D. Oct 1, 1917. Aldehydes ; carboxylic acids.-The oxidation of the side chains of aromatic hydrocarbons or their lower oxidation products is effected by passing the vapour of the hydrocarbon mixed with air or oxygen-containing gas over a catalyst consisting of an oxide of a metal of the fifth or sixth periodic group, for example, antimony, bismuth, chromium, tungsten, uranium, and particularly vanadium or molybdenum. Toluene vapour and air passed over vanadium pentoxide at, say, 350 to 450‹ C., give benzaldehyde and benzoic acid. The catalysts may be used singly or mixed, in a state of coarse or fine division, and on a carrier or not.
Patent GB-494848-A (GB)
Title: Improvements in or relating to the manufacture of foils, films and the like from cellulose esters
IPC: C08K5/5415
Filed: 1937-05-21
Abstract: Films, foils and the like are made from compositions composed wholly or mainly of a fully esterified organic cellulose ester and an organic ester of silicic acid, the amount of silicic acid ester being between 20 and 50 per cent of the total composition.  The films may be made by dissolving the cellulose ester in a volatile solvent, incorporating the silicic acid ester, casting the mixture and finally removing the solvent.  Examples refer to the production of films from mixtures of cellulose triacetate and tetra-ethyl ester of ortho-silicic acid; of cellulose butyro-acetate, tetra-n-butyl ester of silicic acid, and polymerized vinyl acetate; and of cellulose crotonate-acetate, tetra-ethyl ester of orthosilicic acid; a resin obtained by the co-polymerization of glycol dicrotonate and a -methylstyrene, and dibenzylsuccinate.  It is stated that the resulting films have improved physical characteristics particularly as regards pliability, tearing strength and retention of clearness, and may be used for eye pieces for goggles or gas masks, or in the production of safety glass the cellulose composition forming the middle layer.  According to the Provisional Specification the cellulose ester-silicic acid ester compositions may be used as protective coatings on metal, glass, &c.
Patent GB-1469634-A (GB)
Title: Segmented character printing apparatus
IPC: B41J2/31
Filed: 1974-06-21
Abstract: 1469634 Selective printing H CANDELAND 21 June 1974 [24 March 1973] 14295/73 Heading B6F A printer comprises a single printing member 201-204 for each character to be printed, each printing member comprising a bar which is rotatable about its longitudinal axis and which carries a printing bar on one edge of its tip, so that by rotating the bar a square can be printed, and by shifting the paper a further U can be printed to generate a figure 8, each printing action being selective. A single indexable printing member may be provided. The printing member may be driven for impression by mechanical linkages, hydraulics, or electromagnetic or electrostatic clutches. The printer may be linked to a calculator or electronic digital instrumentation.
Patent GB-724013-A (GB)
Title: Thermionic valve circuits
Inventor: DAVIES DONALD WATTS
IPC: H03F3/52
Filed: 1952-06-06
Abstract: 724,013. Valve amplifying , circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 8,1953 [June 6,1952], No. 14304/52. Class 40 (6). A current amplifier having unity gain and a low input impedance comprises a valve 1 having the input applied between its cathode 2 and earth and also amplified and in reverse phase to its grid via a phase-reverser 6. The output is taken from the anode load 4. The arrangement may be used as an A.C. amplifier, Fig. 2 (not shown), the input being applied over a blocking condenser and the cathode of the valve 1 returned via a resistor to a source of negative potential. It may also be used as a D.C. amplifier, Fig. 3 (not shown); in this case the coupling condenser G is shunted with a resistor, the grid resistor 18 is returned to a point of negative potential, and the cathode of the valve 6 is earth. A constant response down to D.C. may be obtained, in known manner, by suitably proportioning an anode decoupling circuit for the valve 6. An amplifier in accordance with the invention may be utilized to terminate a transmission line, Fig. 4 (not shown), the input impedance being brought up to the correct value by means of a series resistor.
Patent GB-1468505-A (GB)
Title: Grain separating apparatus
IPC: A01F12/30
Filed: 1973-03-24
Abstract: 1468505 Grain separator MASSEY-FERGUSON SA 8 March 1974 [24 March 1973] 14306/73 Heading A1F In a grain separator comprising oscillating straw walkers 34, 36, 38, 40, 42 and a rotor 20 carrying corresponding groups 44, 46, 48, 50, 52 of fingers 24, each group comprising four sets of fingers 24 successive fingers of each set being of different lengths so that each set describes an eccentric periphery around the rotor 20, and each group being angularly offset on the rotor 20 from the other groups, the straw walkers and the groups of fingers 24 are arranged so that in operation a gap (80, Fig. 2 not shown) between the ends of the fingers 24 and the rear of the straw walkers is constant. The rotor 20 is driven by a walker-drive crankshaft 62 through pulley wheels 60, 56 and a belt 58. Separated grain is collected in a grain pan 68. The rotor can be located between two parts of the straw walkers (Fig. 4 not shown).
Patent GB-753921-A (GB)
Title: Improvements in or relating to screw conveyors
IPC: B65G65/46
Filed: 1954-05-17
Abstract: 753,921. Screw conveyers. THORDAHL, G. J., [trading as THORDAHL & CO., G. J.], and PODMORE, A. May 5, 1955 [May 17, 1954], No. 14319/54. Class 78 (1). The inlet to the casing 43 of a vertical screw conveyer 44 is located within a well 41 in which is reciprocated a frusto-conical member 51, which surrounds the casing, and a similarly shaped member 54, which surrounds only onehalf of the casing. The members 51, 54 are carried by rods 52 which are pivoted at their upper ends to horizontal arms 55 of a bell-crank lever assembly pivoted at 56. A vertical arm 58 of this assembly is connected by a ball joint 59 to a connecting rod 60 which is driven by a crank 28. A spring-loaded lost motion device 61 is inserted in the connecting rod to avoid damage in the event of the members 51, 54 meeting an obstruction. The crank 28 is driven by the output shaft of a gear-box 26. This shaft extends downwards to drive a mixing screw 13 and is connected by belt gearing 27, 49, 48 to the shaft of the conveyer 44.