baber/WOPTO huggingface dataset:
Patent GB-588059-A (GB)
Title: Improvements in or relating to locking devices
IPC: F16B2/06
Filed: 1945-01-19
Abstract: 588,059. Locking screws. TAYLOR, TAYLOR, & HOBSON, Ltd., and IRELAND, A. J. Jan. 19, 1945, No. 1602. [Class 89 (i)] [Also in Group XX] A device for locking together two substantially coaxial tubular members of a lens mount comprises one or more detents extending freely through corresponding slots in one tubular member, and a control device carried by this member and rotatable relatively thereto about its longitudinal axis, the control device when operated urging the detent into engagement with circumferential grooves on the second member or a part in engagement therewith. As shown, the internal thread A<1> of a fixed outer part A co-operates with the external thread B<1> of a focusing part B, provided with a knurled rim B An annulus D, carried by the part A and angularly adjustable relative thereto between a shoulder A<2> and a keeper ring A3, has eccentric surfaces D<2> which, in the operative position, press on each detent C<1> in slots C of the part A, so that the toothed edge thereof engages longitudinal grooves B3 on the part B. In a modification, detents C<1>, engage with grooves E<1>, Fig. 7, on a part E which is axially held between a shoulder A<4> on the part A and a keeper ring A<5> in screwthreaded engagement therewith and is provided with a thread E co-operating with a thread F<1> on an inner focusing part F. The part F has a longitudinal slot F<2> engaged by a key A<6> so that with the device D in the inoperative position, the focusing part F will be axially adjusted relatively to the fixed part A by angularly adjusting the part E. The part E may, however, be in screw threaded engagement with the part A and the focusing part F. The troughs of each toothed edge may lie on a straight line or an arc having a radius substantially equal to the radius of the external surface of the member B or the part E in engagement therewith. Alternatively, the detents C<1> may be carried by the inner member B, the toothed edges thereof engaging grooves formed in the outer member A or the part in engagement therewith, the control device D lying within the part B.
Patent GB-272411-A (GB)
Title: Improvements in diaphragm pumps
IPC: F04B43/00
Filed: 1927-01-19
Abstract: 272,411. Crofton, W. B. Jan. 19, 1927. Crank-actuated pumps; diaphragm-pumps; delivery pipes.-A diaphragm pump suitable for boreholes comprises a cylindrical casing to which a polygonal frame carrying several flexible diaphragms 8 is fixed at its corners, forming several segmental pump chambers 7 provided with inlet and deliver valves 17, 23. Coaxially arranged in the cylinder 2 is a crank shaft 10 carrying a number of rollers 29, which, during the rotation of the shaft, bend the diaphragms outwards, thereby producing a pumping action in the chambers 7. The liquid is delivered into a chamber 16 to which the delivery pipe 35 is connected. The shaft may be held stationary by means of a crossbar 33 in the borehole, while the cylinder 2 is rotated or oscillated by a pulley 39 or cranks 40 on the delivery pipe. The diaphragms may be strengthened by ribbed members 31.
Patent GB-1487041-A (GB)
Title: Clip
IPC: F16B2/24
Filed: 1976-01-15
Abstract: 1487041 Clips A RAYMOND 15 Jan 1976 [25 Feb 1975] 01634/76 Heading E2B A U-shaped clip 11 for securing a decorative facing strip 12 to the edge 6 of a sheet metal wall has a long fixing claw 7 which in its unstressed condition Fig. 2, projects across the clip and through a hole 9a in the opposite limb, but which is pressed flat, Fig. 4 without distorting the clip outwardly, when the metal edge is inserted.
Patent GB-232668-A (GB)
Title: Improvements in and relating to vent pegs and the like, and to valves therefor and for other purposes
IPC: B65D51/16
Filed: 1924-01-21
Abstract: 232,668. Dudson, T. Jan. 21, 1924. Check elastic valves. - A valve for use for example in a vent peg &c. or for other purposes comprises a rubber thread 24, Figs. 1, 2, 5 and 8, stretched so as to hold an integral conical rubber valve 25 against its seating. The seating may be formed in a tube 15, Fig. 1, pressed against a washer 20 in the vent peg by a screw-cap 23, the elastic thread passing through a bore 16 and being held by a holder 26; or it may be formed in a tube 31, Fig. 2, held in a rubber &c, sleeve 32 within the vent peg. the end of the rubber thread being lodged in a slot 34 in the upper end of the tube; or it may be formed in the peg itself, as in Fig. 5, in which case a plug 39 for the open end of the peg is held in place by a spring split ring 40. In a further alternative, the anchored end of the flexible thread is constituted by an enlarged end 43 of the rubber strip as shown in Fig. 8.
Patent GB-824773-A (GB)
Title: Improvements in or relating to the measurement of the magnetic properties of metal sheets
Inventor: LANGE HEINRICH
IPC: G01R33/12
Filed: 1956-01-18
Abstract: 824,773. Electric and magnetic tests. STAHLWERKE BOCHUM A.G. Jan. 18, 1956, No. 1663/56. Class 37. The magnetic properties of sheets are measured by a yoke serving as a field generator and a winding embracing the sheet for the measurement of iron voltage, the yoke winding being so spaced from the end flanges that the magnetizing field near the sheet varies linearly with distance from the sheet and is measured by further windings above and below the sheet. In the arrangement shown, which is intended to measure iron loss, the specimen 10 to be examined is supported above yoke 12 which is magnetized by means of a winding 13 fed with a sinusoidal alternating current, from the output of a regulating transformer 14. The magnetizing winding is shorter than the limb of the yoke on which it is wound and the effect of this is stated to be that close to the surface of the specimen the field strength falls off linearly with distance from the surface of the specimen. A coil 15 wound on a former 16 (Fig. 3), surrounds the specimen and is arranged to produce a voltage indicative of the field in the iion. This voltage is fed to a voltmeter 25 and to the voltage coil of a wattmeter 23. Four further coils 21 are mounted two above and two below, and at equal distances from the specimen. The coils are so connected that their outputs are additive and are amplified and applied to the current coil of wattmeter 23 which then gives an inclination of the iron losses. Producing sinusoidal voltage in coil 15.-In order that the voltage induced in coil 15 shall be sinusoidal its output is fed to an amplifier 18 in opposition to the output of a variable transformer 17 which is supplied at the fundamental frequency. The amplifier output is fed to a coil 19 also wound on yoke 12. The output of coil 15 and of the secondary of transformer 17 are observed on a double-beam oscilloscope 20 and the amplitude and phase adjusted until the voltage across winding 15 is sinusoidal. The specimen may be carried over the yoke between belts 26, 27 (Fig. 2), the lower one of which is driven and which pass through slots in the winding formers. Specification 822,905 is referred to.
Patent GB-1020810-A (GB)
Title: Thiocarbamic acid-s-esters and process for their production
IPC: C07D235/28
Filed: 1965-01-14
Abstract: The invention comprises carbamic acid esters of the formula <FORM:1020810/C2/1> in which R1 denotes a hydrogen or halogen atom or an alkyl or alkoxy group, A denotes an alkylene group of 1-10 carbon atoms, R2 denotes a halogen atom or an alkoxy, haloalkoxy, alkyl-cycloalkoxy or alkylmercapto group and n is 1 or 2, the substituents R1 being the same or different when n is 2. The compounds are obtainable by reacting a mercaptobenzimidazole of the formula <FORM:1020810/C2/2> with a substituted aliphatic isocyanate of the formula R2-A-N:C:O in the presence of a base, preferably a tertiary amine.  A number of mercaptobenzimidazoles and aliphatic isocyanates suitable for use in the reaction are specified, and typical examples describe the manufacture of esters of the formulae <FORM:1020810/C2/3> The products are useful as fungicides (see Division A5).ALSO:As fungicides, use is made of carbamic acid esters of the formula <FORM:1020810/A5-A6/1> in which R1 denotes a hydrogen or halogen atom or an alkyl or alkoxy group.  A denotes an alkylene group of 1-10 carbon atoms, R2 denotes a halogen atom or an alkoxy, haloalkoxy, alkyl-cycloalkoxy or alkylmercapto group and n is 1 or 2, the substituents R1 being the same or different when n is 2 (see Division C2).  Typical esters have the formulae <FORM:1020810/A5-A6/2> The esters may be formulated as dusts, powders, granulates, pastes or emulsifiable concentrates with the aid of solid or liquid diluents, a number of both of which are specified, and compositions so prepared may be applied to growing plants, particularly to rice, or to the soil in which plants are growing or are to be grown.  Their use as leaf fungicides in association with organic mercury compounds is specifically mentioned. Experimental results are given.
Patent GB-100327-A (GB)
Title: Improvements in Pressure Mechanism for the Rollers of Drawing, Roving and similar Frames.
Inventor: MYLCHREEST THOMAS GEORGE
IPC: D01H5/48
Filed: 1916-02-04
Abstract: 100,327. Mylchreest, T. G., and Hardisty, F. Feb. 4, 1916. Rollers and roller heads.-In order that the pressure on the top rollers of drawing, roving, and like frames may be readily released and applied, the half-bearing d, which presses on the axle e of the top roller is made cam-shaped and may be rotated on the axle and within a housing formed on or carried by the weight hook by means of a bar or handle k. When the bearing 'd is turned into the position shown in Fig. 2, the weighted lever h rests on the stop l.
Patent GB-763783-A (GB)
Title: Novel barbituric acid derivatives and a process for the preparation thereof
Filed: 1955-01-20
Abstract: The invention comprises 6-isopropyl-3,4-dimethyl - spiro - [cyclohexane - 1,51 - barbituric acid] and its salts, and its preparation by heating 2,3-dimethyl-butadiene with isobutylidenemalonic acid dialkyl ester, catalytically reducing the resulting 1,1 - dicarbalkoxy - 3,4 - dimethyl - 6 - isopropyl - cyclohexene - (3), heating the thus formed 1,1-dicarbalkoxy-3,4-dimethyl - 6 - isopropyl - cyclohexane with urea in the presence of an alkali metal alkoxide such as sodium ethoxide, and isolating the product by acidification with a weak acid.  The salts are produced by reacting the barbituric acid derivative with an alkali metal hydroxide, an alkaline earth metal hydroxide, ammonium hydroxide or a basic amine such as diethylamine, diethanolamine, ethylene diamine, N : N-diethyl-ethylene diamine or methyl-glucamine. An example is given and the sodium salt of the product is prepared.
Patent GB-572025-A (GB)
Title: Improvements in and relating to tube cleaning apparatus for boilers and the like
IPC: F28G3/16
Filed: 1944-01-31
Abstract: 572,025. Soot-blowers. LUMB, C. F., and SPEARS, F. G. W. Jan. 31, 1944, No. 1775. [Class 99 (ii)] In a soot-blower the nozzle 11 is carried by an ejector 9, which is mounted in a branch 4 of a steam chest and is attached to a screwed spindle 16 so as to reciprocate therewith but be rotatable thereon, and a nut 17 on the spindle is provided with means whereby it may be coupled to a fixed part 1 or to the spindle so that continuous rotation of the spindle produces in sequence reciprocatory and rotary motion of the nozzle The ejector 9 is mounted on a piston 15 and the spindle 16 has a collar 28 which engages a recess 27 in the piston. Fingers 23 extending from the nut into the slot ensure that the nozzle rotates with the nut. A hand-wheel 37 which is splined to the spindle 16 by engagement of a stud 32 with a groove 33 in the hand-wheel, is rotatably mounted on the casing 1 by set screws 41 which enter a groove in the hand-wheel and carry rollers 41b engaging a flange on the nut 17. In the position shown, the steam valve 13 is seated and the nut 17 is held stationary by engagement of a ball 42 carried by a hole 42a with a recess 43 in the casing. A half revolution of the hand-wheel in a clockwise direction causes the spindle 16 to be screwed into the stationary nut until the pins 48, 49 on the nut and hand-wheel respectively come into contact. The steam valve 13 is thus opened. At this point the ball 42 enters a recess 45 in the hand-wheel, and the nut is thus locked therewith. Continued rotation of the hand-wheel in a clockwise direction will cause the nozzle to make almost a complete revolution, the motion being stopped by engagement of a pin 51 on the nut with a pin 50 in the casing On reversing the rotation of the hand-wheel, the nut being still locked therewith, the nozzle is moved back in a clockwise direction until the pin 51 strikes the opposite side of the stop 50. The ball 42 then enters the recess 43 locking the nut against rotation and the valve 13 is closed by further rotation of the hand-wheel in a clockwise direction. In a modification, Fig. 6, in which more than half a revolution of the hand-wheel is necessary to open fully the valve, the nut is locked until a pin 54 on the hand-wheel spindle strikes an abutment 55 on the nut. At the same time a longitudinal slot 52 on the piston has moved out of engagement with a fixed pin 50 which is now in line with an annular recess 53. The ball 42 then moves into recess 45 on the hand-wheel and the nozzle is rotated until a stop 56 in the recess 53 engages the pin 50. The recesses 43, 45 engaged by the ball are preferably V-shaped in a cross section. By making the area 15a of the exposed ledge of the piston greater than the surface of the valve and ejector, the piston is kept in contact with the collar 28. Vents 56, Fig. 1, and 57, Fig. 6, allow steam passing the piston to escape. The branch 4 is arranged so that it is connected to the casing 1 by a single joint 7.
Patent GB-289150-A (GB)
Title: Improvements in or relating to valves for pneumatic suction pipes
IPC: F16K1/16
Filed: 1927-01-21
Abstract: 289,150. Whitehead, C., and Crabtree, A. Jan. 21, 1927. Pneumatic dispatch apparatus. - A hinged valve particularly applicable for use on pneumatic suction pipes, comprises a flat valve connected by a link to the suction pipe and adapted to seat against the end of the pipe. In the form shown in the Figure the valve consists of a rectangular plate a of felt or asbestos partly enclosed by a thin metal casing b and.washer c. The connecting link d of stout wire engages at one end with lugs e arranged on the valve member away from the axis and at the other with a lug f having an elongated slot. The lug # may have a plain hole and the end of the pipe may be square instead of inclined as shown.
Patent GB-992234-A (GB)
Title: Flotation cell
IPC: B03D1/16
Filed: 1962-01-18
Abstract: 992,234. Froth flotation apparatus. SCHUCHTERMANN & KREMER-BAUM A.G. FUR AUFBEREITUNG. Jan. 18, 1962 [Jan. 18, 1961; June 27, 1961], No. 1841/62. Heading B2H. A flotation cell 1 includes an agitator cell 2 with adjacent froth chambers 3 and 4 each having inclined side-walls, side drains 5 and 6 and means for governing the flow through the chamber (see Fig. 4), the agitator cell having wall openings 8 and 9 to the froth chambers which are situated in planes above the agitator vane 7. Incompletely processed heavy liquid flows out to other cells for further treatment through nozzles 8 and through Y-shaped pipe 11, waste heavy liquid being withdrawn at the last cell of the assembly. The nozzle 8 bears loosely on a stationary ring 6 mounted in the bottom of the froth chamber. A plurality of nozzles are provided so that an appropriate one may be assembled to govern the rate of flow from the froth chamber. Alternatively the nozzle may be clamped by comb directly on to the bottom of the chamber.
Patent GB-385122-A (GB)
Title: Improvements in and relating to mathematical drawing instruments
IPC: B43L11/00
Filed: 1932-01-21
Abstract: 385,122. Mathematical drawing- appliances. DAWSON, F. G. ROYAL-, Flint House, London Road, Waterlooville, Hampshire. Jan. 21, 1932, No. 1900. [Class 97 (iii).] An instrument for use in plotting curves for road, railway, or other engineering projects comprises a sheet of material part of the contour of which conforms to a lemniscate, spiral, cubic parabola or other curve approximating to a lemniscate over a small arc, a unit of measurement given by the length of a polar ray at a deflection of 16 minutes to the tangent at the origin being applied thereto. The rim of the curve may be divided into arcs or chords according to the above unit and the radii of curvature may be marked at points on the curve in the same units.
Patent GB-213046-A (GB)
Title: Method of and apparatus for destructively distilling petroleum or mineral oil from oil shales, bituminous coal and other hydrocarbonaceous material
IPC: C10G1/02
Filed: 1923-01-22
Abstract: 213,046. Stalli, A. Jan. 22, 1923. Fire - b a r s. - In apparatus for the distillation of oil shale a mechanical grate, Fig. 3, has bars carrying teeth and rotated by worm wheels.
Patent GB-138109-A (GB)
Title: Improvements in propellers
IPC: B63H1/12
Filed: 1920-01-21
Abstract: 138,109. Kopcsay, J. Feb. 25, 1918, [Convention date]. Screw propellers.-A screw propeller or fan is constructed with two blades on a framework placed at an angle of 45 degrees with the propeller shaft and 90 degrees with each other, the leading edges being in line, and the tip and following edge being supported by arms from a secondary boss. A triangular frame 16, 17 on two bosses 14, 15, Fig. 3, supports one edge of each of the blades, which are inclined to the shaft 5 and each other, and have their leading edges 9, 10 in line. The outer edges 11, 12 are part of a circle in projection on a plane perpendicular tn the shaft 5. Bars 19, 20 complete a framework for the blades, to which the plane surfaces of metal, fabric, or the like are attached by means such as rivets 21.
Patent GB-193244-A (GB)
Title: An improved apparatus for seed sowing
IPC: A01C7/18
Filed: 1922-01-24
Abstract: 193,244. Gaunt, C. F. Jan. 24, 1922. Seed distributors.-Manually-propelled apparatus comprises a furrow-forming tool, a seedcovering tool, a hopper, and an apertured disc controlling the outlet of the hopper and @ ated from a land-wheel. A resilient wire may be mounted in the hopper to ensure the feeding of the seeds through the apertures of the disc. The apparatus shown in Fig. 2 is provided with a framework 8 having connected with it wheel scrapers 11 and a socket 9 for a handle 10. The furrow-forming tool 13 is made of sheet-metal and of tapered channel shape. The hopper 15 is removably secured by brackets 14, and is divided into three compartments by vertical partitions. The rotary disc 19 is formed with three series of apertures of different sizes adapted to register intermittently with corresponding apertures in the hopper compartments. The disc is driven by means of peripheral teeth 19a engaging with a spoked disc 21 on one of the land-wheels 12. The seeds fall down a spout or funnel 22 and are covered by a plate 25 carried by arms 24 pivoted on the axle 23. The covering-plate 25 may be held in inoperative position by a chain and hook 26. One or more inclined rollers may be mounted behind the plate 25 or substituted for it. A chain and pin may be provided for locking the disc in position to close the hopper outlets. In one or more of the hopper compartments, a cranked wire 28 is fixed at the top and rests on the disc 19 so as to enter the apertures as the disc rotates. The wire may serve as a non-return pawl to prevent rotation in the reverse direction. In a modified apparatus for large seeds, a rotary perforated disc forms the bottom of an un-subdivided D-shaped hopper provided with an inclined plate for directing the seeds to the apertures. This hopper and disc may be substituted for those shown in Fig. 2. According to one of the Provisional Specifications, the furrow-forming tool is adjustable vertically, the seed-coverer consists of one or more fixed shares or blades, and a free-wheel clutch may be provided.
Patent GB-914610-A (GB)
Title: Screw and nut motion transmitting device
IPC: F16H25/20
Filed: 1960-01-20
Abstract: 914,610. Screw-and-nut gearing. ANDERSON CO. Jan. 20, 1960 [Feb. 4, 1959], No. 2048/60. Class 80 (3). [Also in Group XXXIV] The threads of a single or multi-threaded screw 10, Fig. 1, are engaged by toroidal portions 19 on rollers 17 mounted in equallyspaced openings in a cage 25 fixed to a " nut " casing 41, the rollers 17 being held against the screw by a freely-rotatable ring 20. The ring 20 has opposed raceways engaging the rollers whereby the ring is axially located. As shown, the screw 10 has a triple start thread engaged by three rollers 17, and the cage 25 is secured in a housing 34 surrounded by a resilient pad 40 in the flanged casing 41. Rotation of the screw 10 thus causes axial movement of the casing 41 to operate, for example, a vehicle window, the ring 20 then rotating idly. In modifications wherein the screw is axially moved by rotation of the " nut ", the cage 25 is fixed directly in the hub of a driving gear or pulley. In one such form, Fig. 3 (not shown), the hub is rotatably mounted and is shaped to form a housing corresponding to the housing 34; in another form, Fig. 7, the cage 25 itself is supported by ball-bearings 68 in a fixed frame 60 and is extended to carry the pulley or gear 80. In a further modification a single-thread irreversible screw 53, Fig. 5, is engaged by rollers 55 which are distributed around the screw in axially staggered formation. The rollers 55 are held against the screw 53 by a freely rotatable ring 56 axially located by inturned flanges which engage certain of the rollers, there being preferably an even number (four, as shown) of rollers.
Patent GB-1028388-A (GB)
Title: Hydrogenated block copolymers, their compositions and process for the preparation ofthe hydrogenated block copolymers
Inventor: JONES ROBERT CALDWELL
IPC: C08F8/04
Filed: 1965-01-18
Abstract: Elastomeric hydrogenated block copolymers of the formula A-B-A in which each A is an independently selected polymer block of a vinyl aromatic hydrocarnon having an average molecular weight of 4,000 to 15,000 and B is a polymer block of a conjugated diene comprising at least 75% by weight butadiene and having an average molecular weight of 20,000 to 450,000, the blocks A constituting 2 to 33% by weight of the copolymer and 35 to 55% of the carbon atoms in block B comprising at least 2 carbon atoms, the residual unsaturation of block B being less than 10% of its original value, are made by polymerizing in an inert hydrocarbon solvent in the presence of a lithium metal or organolithium catalyst a vinyl aromatic hydrocarbon to form a block A, adding a conjugated diene comprising at least 75% by weight butadiene and continuing polymerization in the presence of a polar compound which is an ether, a thioether and/or tertiary amine, the molar ratio of polar compound to catalyst being between 7 and 70, to form an intermediate block copolymer A-B, subsequently adding an alkenyl aromatic hydrocarbon and block copolymerizing this monomer with the intermediate to form a block copolymer A-B-A, and hydrogenating this to a residual unsaturation of block B of less than 10%.  The resulting block copolymers behave as vulcanized rubber but without requiring vulcanizing.  The example describes making block copolymers of styrene and butadiene, using secondary butyl lithium as the catalyst and tetrahydrofurane as the polar compound, the resulting copolymers being hydrogenated with the aid of a nickel catalyst.
Patent GB-587067-A (GB)
Title: An improved decoy pigeon
IPC: A01M31/06
Filed: 1946-01-22
Abstract: 587,067. Decoys for birds. SMITH, J. Jan. 22, 1946, No. 2172. [Class 5 (i)] A decoy pigeon is pivotally supported on a stake 12 which is spade-ended or otherwise formed to prevent it from turning in the ground. The hinge 13 is sufficiently loose to allow slight lateral rocking movement. The head 8 of the decoy is detachable and held on the neck 6 by a spring 10. A flat tail 5 is provided.