baber/WOPTO huggingface dataset:
Patent GB-1492212-A (GB)
Title: Devices for measuring the density of liquids
IPC: G01N9/22
Filed: 1975-03-18
Abstract: 1492212 Measuring fluid density electrically KALLE-REGULATORER AB 18 March 1975 [25 March 1974] 11139/75 Heading G1N Apparatus for measuring the density of a flowing liquid comprises a cylindrical float 1, Fig. 1 with an upper extension 2 of soft iron 4 forming the armature of a differential transformer 6 and a lower extension 3 consisting of a permanent magnet 5 surrounded by similar coils 10, 11. The float is designed to be at red symmetrically with respect to the windings 7-11 for a liquid of a pre-set density. Any change in density displaces the float and produces an output voltage from the differential transformer which, after rectification at 14, is fed back to windings 10, 11 to act on permanent magnet 5 to restore the float to its normal position, the energizing current, measured at 16, being indicative of the change in density.
Patent GB-1196687-A (GB)
Title: Auxiliary Stacking Device
Inventor: NOLTE KLAUS
IPC: B65H29/04
Filed: 1968-03-07
Abstract: 1,196,687. Stacking sheets. DBUCKMASCHINENWERK PLANETA VEB. 7 March, 1968, No. 11177/68. Heading B8R. An auxiliary stacking device in which a table member is inserted between a completed stack of sheets and further sheets being delivered without halting the stacking operation comprises a plurality of support rollers articulated together to form a table and driven in and out of the region of the stack by means of sprocket wheels engaging roller chains carried on the ends of the support rollers. Fig. 1 is a sideelevation of a device in which sheets 1 are conveyed by grippers 2 and deposited on stack 3; when the stack reaches a pre-determined maximum height, articulated support rollers 4 are driven in the direction of arrow c to advance the auxiliary table in the direction b. The drive is provided by a motor 16 which through V-belt 17 drives sprocket wheels 14 mounted on either side of the table. The wheels 14 engage chain tracks (13), Fig. 2 (not shown), supported on links 12 connecting the rollers 4; each chain track forms part of a double roller chain, the second track being supported by fixed curved guide rails (10, 11).
Patent GB-1309264-A (GB)
Title: Reactive azo dyestuffs
IPC: C09B62/008
Filed: 1970-03-09
Abstract: 1309264 Azo dyes BAYER AG 9 March 1970 [11 March 1969] 11192/70 Heading C4P The invention comprises reactive azo dyes of the formula wherein D is an aromatic carbocyclic or heterocyclic radical; X is hydrogen or a sulphonic acid group; R and R 1  are hydrogen or alkyl; and Z is a reactive, optionally substituted acryloyl radical, propionyl radical or halosubstituted cyclobutane-carbonyl radical. Halogen substituents are especially preferred, e.g. mono-, di- or tri-chloro- or bromo-acryloyl radicals. The dyestuffs may be obtained by acylating a dyestuff of Formula II with an acrylic acid, propionic acid or cyclobutane carboxylic acid chloride, bromide or anhydride, or by coupling diazotized amines of Formula V: with a coupling component of Formula VI: The dyes give red shades on textile materials containing hydroxyl groups or nitrogen atoms.
Patent GB-255177-A (GB)
Title: Improvements in method of heating gaseous fluids
IPC: C21B9/10
Filed: 1925-04-29
Abstract: 255,177. Brassert, H. A., and Andrews, C. W. April 29, 1925. Air and gas heating furnaces.-Air, gases, or steam for use in connection with gas producers, blast furnaces, &c. are heated by three or more stoves each comprising a casing 43 containing brick checkerwork 45 and layers of metal rods 46, the heatdelivering period for each stove being alternated with a heat - absorbing period of longer duration. Blast furnace gas, producer gas or natural gas &c. is introduced through a pipe 15 with a valve 18, induces a flow of air through a passage 8 with a valve 11 and burns in the upper portion of the stove, the flame impinging on the checker work 45 and the combustion products passing to the flue by a pipe 29. When one stove is sufficiently heated the valves 11, 18 and a valve in the pipe 29 are closed and the air, gas or steam is introduced through a pipe 36 with valve 39, while another stove is heated. The heated air &c. passes to the apparatus in which it is to be used by a pipe 23 with valve 26. A cleaning door 42 allows of the removal of waste material accumulating in the stove.
Patent GB-163035-A (GB)
Title: Improvements in and relating to hydroplanes, hydro-aeroplanes and the like
IPC: B63B1/24
Filed: 1921-04-18
Abstract: 163,035. Bell, A. G., and Baldwin, F. W. May 7, 1920, [Convention date]. Rudders.-In hydro-planes, hydro-aeroplanes, &c. employing submerged sets of hydrofoils, the steering in water is effected by a set A of hydrofoil blades centrally mounted on a vertical pivot at the stern so that it can be turned about the pivot to act as a rudder. This set comprises rearwardly inclined struts 11, 12, 13 and two series of rearwardly projecting blades 14, 15.
Patent GB-219402-A (GB)
Title: Improvements in laundry collar ironing and shaping apparatus
IPC: D06F71/22
Filed: 1923-04-26
Abstract: 219,402. Wardrop, T., and Chant, J. April 26, 1923. Ironing - machines specially constructed for treating collars. - In a machine for ironing (or folding and ironing) and shaping double-fold collars, there is provided a shaping device comprising three rollers 8 . . 10 geared to each other at their upper ends and supported in bearings at their upper ends, one axle 9<a> being extended downwardly to drive all the rollers from the main shaft 21. The roller 8 is yieldingly held against the other rollers by a spring 12. The two larger rollers 9, 10 are rubber covered, whilst the smaller roller 8 is of plain polished metal. An endless belt 12<a>, tensioned by a spring 13 passes round the three rollers. The folder and ironer comprise a rotary disc, driven from shaft 21, and gas-heated saddleshaped boxes 4, 5 straddling the disc. The collar is passed from the ironer to the shaper through a guideway 17. The box 5 is mounted at one end' of a lever 6, Fig. 5, the other end of which is slidably supported on a rod between a spring 7 and stop 7<a> so as to be free to rise and fall. The collar is discharged downwardly over a guide 19.
Patent GB-238276-A (GB)
Title: Improvements in or relating to alternating current rectifiers
IPC: H02M1/22
Filed: 1924-05-07
Abstract: 238,276. Hancock, L. J., and Hancock & Co. (Engineers), Ltd. May 7, 1924. Charging batteries. -Relates to charging batteries from an alternating current source by means of a synchronously driven commutator switching device, and consists in supplying to the slip rings a higher voltage than that theoretically necessary to send a normal charging current through the battery in order to permit the use of a lower ratio between the width of insulation between commutator segments and that of the segments themselves, thus reducing the time interval the battery is cut off between rectified impulses without permitting reversal of current.. The rectifier comprises slip rings 2 and a commutator 1 rotated either directly or through gearing by a synchronous motor comprising a soft-iron armature having a number of radial arms 3 corresponding to the number of poles which are excited by windings connected to the source of alternating current supply 5. In starting, the motor may be brought up to synchronous speed by rotating by hand a large wheel frictionally engaging a small wheel on the motor shaft. Alternating current is supplied to the slip rings 2 through a transformer 6, the secondary of which is provided with tappings to enable the voltage to be varied to suit the direct current load, which is supplied through brushes 7 bearing on the commutator segments which are connected as shown to the slip rings. A resistance 11 may be inserted in the slip ring circuit to limit the current to the normal charging value.
Patent GB-473562-A (GB)
Title: Improvements in meters for the measurement of fluid flow
IPC: G01F1/44
Filed: 1936-04-20
Abstract: 473,562. Flow meters. NATHAN, M. L. April 20, 1936, No. 11314. [Class 69 (i)] A Venturi meter comprises an annular recess 5 surrounding the throat and communicating with the pressure off-take 6, the width of the recess being between À025 and 1D, where D is the diameter of the tube 8 in which the meter is installed. The outer diameter of the recess may be between 1À2 and 2d, and preferably 1À5d, where d is the diameter of the throat. The inlet cone 1 is straight-walled or otherwise formed so as not to merge into the throat, and may have an angle between 30‹ and 70‹, preferably 50‹. The angle of the outlet cone 2 may be between 10‹ and 20‹, preferably 15‹.
Patent GB-657849-A (GB)
Title: A devices for suspending articles to be dried or aired
IPC: D06F57/04
Filed: 1949-04-28
Abstract: 657,849. Clothes airers. AAS, S. AKRE-. April 28, 1949, No. 11356. [Classes 52(iii) and 52 (v)] A clothes airer comprises a rod 1, attached to ceiling, which fits within a tube 4 having at its upper end radiating arms 6. The rod and tube are locked in their telescoped position by means of a lug 9 projecting from the rod 1, which passes through a groove 11 in a sleeve 10 attached to the tube 4. The sleeve 10 is formed with an oblique lower edge and has a transverse groove 12 in the upper part of the oblique edge which receives the pin where it is held under the action of a spring 8. A spring 14 at the foot of the rod breaks the fall of the tube 4 when the bayonet connection is released.
Patent GB-437578-A (GB)
Title: Improvements in or relating to calculating mechanism
IPC: G06F7/46
Filed: 1934-04-06
Abstract: 437,578. Calculating-apparatus. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London, KEEN, H. H., 25, Sollershott East, Letchworth, Hertfordshire, and CAMPBELL, C., Victoria House, Vernon Place, Southampton Row, London. April 6, 1934, Nos. 11395/35 (divided out of 436,163) and 11396/35. [Class 106 (i)] The invention relates to mechanism for dividing a number set up in a register by two and comprises a reading-out mechanism with contacts arranged in an electrical circuit arrangement similar to that set forth in Specification 436,163. The circuit connections are shown in Fig. 4 and are similar to that shown in Fig. 2e of the Specification referred to, except that the leads to the receiver magnets 213 are connected to a denomination of the register lower than that shown in Fig. 2e in which arrangement division is effected by twenty to convert an amount entered in shillings into pounds sterling. In accordance with the present invention each register wheel is geared to a wheel 420, Fig. 1, which turns through half a revolution for each counter wheel revolution and each gear-wheel carries two pairs of brushes 421, 422 that co-operate with segments 423, 426 and contacts 424, 425 respectively. An emitter EM in the form of a commutator driven in synchronism with the register serves to establish a connection between a line 438 and nine lines 451. The segments 423 are connected to the corresponding denominational counter magnets 213 and the segments 426 are connected together to a line 453 and to cam contacts CC6. The contacts 424 are connected to the leads 451, either directly as for the highest denomination or through relay contacts for the other denominations, while the contacts 425 are connected in parallel to the relay magnets 458, 440, 441 and 445. The relay magnets 440, 441, 445 are energized only when the digit of the next higher denomination of the dividend is odd, to throw over their respective contacts to disconnect lines " 1-4 " of the leads 451 and connect up the lines " 5-9 " ; the relay 458 is energized only when the units digit is odd so as to close contacts 458a to connect the " 5 '' line 451 to a 1/10th counter magnet. The circuit connections may be modified so that a number set up may be multiplied by five ; for this purpose the leads for the segments 423 are connected to the next higher denomination, one half of the number of course being transmitted. The circuits may also be arranged to divide a number by a power of two. By adding circuits for effecting subtraction in a known manner by adding half the complement repeatedly a sixteenth or one-eighth of the number may be obtained. In the latter case, to obtain onesixteenth, one half of the number obtained may be transmitted to the magnets 213. Another circuit arrangement is described whereby one-sixteenth may be obtained by adding the fractions 1/100th, 1/20th, and <1>/400th of the number. Specification 428,793 is referred to.
Patent GB-829268-A (GB)
Title: Improvements in or relating to luminescent screens
IPC: G21K4/00
Filed: 1958-04-10
Abstract: A protective coating for a luminescent screen comprises a mixture of (1) a vinyl chloride/vinyl acetate copolymer containing at least 60% vinyl chloride; (2) a poly-(alkyl acrylate) or poly-alkyl methacrylate) wherein the alkyl radical contains 1 or 2 carbon atoms; and (3) a poly-(alkyl acrylate) or poly-(alkyl methacrylate) wherein the alkyl radical contains 4-6 carbon atoms, the first component being 40-90% and the other two being 5-55% by weight of the mixture. The preferred coating contains 50-90% of (1) and from 5-45% of (2) and (3) by weight, and (1) may be composed of 9 parts vinyl chloride to one of vinyl acetate. The phosphor layer is coated to a thickness of between 0.005 and 0.015 inches of a solution containing at least 7% of the above mixture in an organic solvent which is preferably acetone or a 1:1 mixture of methyl ethyl ketone and toluene, but may be an alcohol, ester or mixtures of these with diluents such as benzene and the xylenes, the final protective film being about one-tenth of the above thickness after baking.  The phosphor layer may be 0.0045 inches thick and may comprise a luminescent material such as calcium tungstate, zinc sulphide, zinc silicate, zinc phosphate, alkali halides, cadmium sulphide, cadmium selenide, zinc selenide, zinc telluride, cadmium telluride, cadmium tungstate, magnesium fluoride, zinc fluoride, strontium sulphide or mixtures of zinc sulphide and cadmium sulphide, or zinc oxide and calcium silicate.  The phosphor layer may be applied to a cardboard cellulose acetate, polyester or polyamide support using binders such as cellulose nitrate, the poly-(alkyl acrylates) or poly-(alkyl methacrylates) or chlorosulphonated polyethylene. This protective coating is said to be resistant to moisture, staining, abrasion, and build up of static electricity and is of particular use for X-ray intensifying screens.  Specifications 727,705 and 788,979 are referred to.
Patent GB-1421434-A (GB)
Title: Apparatus for conveying materials comprising liquids containing solid material
IPC: B65G53/00
Filed: 1973-03-09
Abstract: 1421434 Forcing liquids by gaseous pressure G FALDI 9 March 1973 [20 March 1972] 11459/73 Heading F1R Apparatus for conveying a mixture of liquid and solid substances comprises at least two vertical cylinders 5 each provided with an inlet valve 21 and outlet valve 23 for the mixture, and an inlet 26 for entry of compressed air, the mixture being fed to the cylinders from a hopper (1), Fig. 3 (not shown), and the compressed air being successively and cyclically fed to the cylinders via a distributer (9), Fig. 1 (not shown), a spare cylinder 5 in addition to the two or more cylinders, and connecting pipes (40) with shut-off valves (43) to permit the spare cylinder to be operated in substitution for one of the two or more cylinders.
Patent GB-286914-A (GB)
Title: A process and device for obtaining white and purified pectin
IPC: C08B37/00
Filed: 1927-04-29
Abstract: 286,914. Paul, R., and Grandseigne, R. H. April 29, 1927. Gums, carbohydrate.- Dry, white and purified pectin is obtained from a pectous solution by treating it in several stages with acetone, compressing the pectin jelly precipitated, drying and crushing it. The pectous solution is run from a container 1, together with acetone from a container 7 into a drum 2, where during thorough maceration the precipitated pectin jelly and liquid pass through a pipe 9 to a compressor 10, whence ejected liquid is led off to the vessel 13. The jelly passes on to the drum 12 where it is out up and treated with fresh acetone from a container 8. The jelly, now a bleached fibrous mass, is fed to a second compressor 17 and then through a pipe 19 into the dryer 20, and finally to a crusher 22. Another washing and compression stage may be introduced before the dryer if desired. The acetone liquids from the drum 12 and compressor 17 are led to the vessel 18 whence they are pumped to the container 7 for treating fresh pectous solution, for which purpose they may be reinforced by fresh acetone from the container 5. The vapours from the dryer 20 are led to a condneser 23 and cooler 24 and thence to the vessel 13. The precipitating drum 2 comprises rotating stirrers 31, Figs. 2 and 3, which are fitted with combs 32, propelling vanes 33, and baffles 30. The inlets 28, 29 for pectous solution and acetone are close together in the conical end of the drum. The washing and impregnating drum 12, Figs. 4 and 5, comprises a tangentially arranged inlet 11, swept by revolving cutters 47. Combs 48 and propelling vanes 49 are provided for feeding the jelly against the acetone current towards the outlet 14. The compressors comprise a drum 10, having an inlet 37 and outlet 11 and feeding screw 36, Fig. 6, the pitch of which is gradually reduced in the forward direction. A cone 42 opposes the feed, and is adjusted as to position by a screw and nut 46, 46<1>. Ejected liquid passes through perforations at 40. The dryer, Fig. 7, comprises a drum 20, a steam heating jacket 21 and a rotating shaft 60 carrying combs 62 for cutting up the jelly entering at 19. Propelling vanes 63 force the jelly towards the outlets 57. The entire treatment is effected in closed vessels under reduced pressure to prevent loss of acetone.
Patent GB-377214-A (GB)
Title: Screwdrivers, braces and the like devices for holding in proper relation a screw or other member being operated upon
IPC: B25B23/10
Filed: 1931-04-21
Abstract: 377,214. Screwdrivers. BICKERS, H. J., 105, Osborne Road, Romford, Essex, and Mc- KECHNIE, J. A., 13, Woodfield Gardens, Leigh-on-Sea. April 21, 1931, No. 11753. [Class 61 (iii).] A screw &c. is held in engagement with the bit of a screwdriver, brace, &c. by a coil spring A formed hook shape at the lower end B to engage the screw head ; the other end of the spring is frictionally engaged with the stem, or threaded through a hole therein, or secured thereto by suitable means.
Patent GB-629130-A (GB)
Title: Improvements in filing cabinets and the like
IPC: A47B63/02
Filed: 1947-05-02
Abstract: 629,130. Filing paper and like sheets: STEELE & COWLISHAW, Ltd., and STEELE, G. May 2, 1947, No. 11822. [Class 146 (i)]  A filing cabinet drawer b or a filing tray for files arranged on edge has secured to the inside face of the front wall c a downwardly convergent block e of wedge cross-section of less depth than the wall and, at approximately the same level on the front face of an adjustable partition d in the drawer, a downwardly divergent block f of wedge crosssection of less depth than the partition is secured to ensure that the files shall slope in a backwards direction. A block similar to the block e can be provided on the rear of partition d or any additional partition and a block similar to the block f on the forwardly directed face of the rear wall g of the drawer or additional partitions. According to the Provisional Specification, instead of wedges, projections may be provided by transverse ledges or bars.
Patent GB-552445-A (GB)
Title: Boots with sliding clasp fasteners
IPC: A43C11/12
Filed: 1941-09-16
Abstract: 552,445. Top boots. BINDSCHEDLER, A. O. Sept. 16, 1941, No. 11866. [Class 17 (ii)] In a top boot having a stiff upper with an opening closed by a sliding clasp fastener g, a strip i of flexible material is attached to one edge of the opening to form a tongue to protect the stocking or trouser of the wearer. A pulling tag n is secured to the boot at the bottom of the opening, and a second tag o is provided at the top of the boot, being adapted to be secured over the end of the fastener when closed by a press stud r, s.
Patent GB-926273-A (GB)
Title: Laminated belts
Inventor: TOOTHILL JAMES
IPC: F16G5/16
Filed: 1961-04-04
Abstract: 926,273. Laminates. I. FOULDS & SON Ltd. March 13, 1962 [April 4, 1961], No. 11897/61. Class 140. [Also in Group XXIV] In a driving belt comprising groups of overlapping links 10 held by studs or clips 11, each link 10 comprises a plurality of layers of material, at least one of the layers consisting of nylon or other fabric whose warp strands predominate in number, thickness and/or strength over the weft strands. In the fabric layer 14 shown, the weft strand spacing exceeds that of the warp strands and the fabric is bonded between layers 13, 17 of leather. The layers 13, 17 may alternatively comprise a plastics material or a natural or synthetic fabric.
Patent GB-198183-A (GB)
Title: Improved means for feeding fuel to internal combustion engines
IPC: F02M57/02
Filed: 1922-04-28
Abstract: 198,183. Whitcombe, C. H. April 28, 1922. Cylinders receiving liquid fuel.-A fuel injection pump has a plunger n actuated by a cam r on the forcing stroke and by a spring p on the suction stroke a wedge such as x being provided to vary the length of the suction stroke. The pump chamber e is formed in the wall of the cylinder, and communicates directly therewith by means of one or more valueless passages f; a casing such as a surrounds the upper part of the plunger. The fuel is supplied through a valved passage g. Fig. 3 communicating with a groove j in the wall of the chamber e. The wedge x is carried by a plate w supporting a roller t intermediate between the cam and the plunger. In an alternative construction the plunger is driven through the intermediary of a bell-crank and a push rod.