baber/WOPTO huggingface dataset:
Patent GB-1313389-A (GB)
Title: Photometer for carrying out measurements at different preselected wave lengths
IPC: G01N21/31
Filed: 1970-07-30
Abstract: 1313389 Photo-electric spectro-photometers BIO-CAL INSTRUMENT GmbH 30 July 1970 [31 July 1969] 36943/70 Heading G1A [Also in Division G2 ] In a photo-electric spectro-photometer a reference beam 4c and at least two measuring beams 4a, b of different wave-length and which pass through a test sample 8 are received consecutively in a cycle at a photo-cell 11, the photo-cell circuit having a number of branches (12a-c), Fig.3 (not shown), one branch for each beam, the output of the measuring branches being compared with the output of the reference branch to provide the transmissivity of the sample at at least two wavelengths. Light from a point source 1 is collimated, 2, and an apertured beam dividing disc 3, Fig. 2, derives the two measuring beams 4a, b and the reference beam 4c. The disc 3 also has apertures 3d for providing three control beams of light for the control photo-cells 13a-c, which produce switching pulses for synchronizing the circuit branches with their corresponding beams. The beams of light are chopped by a rotating sectored disc 5 having slot apertures 5a-c aligned with the corresponding apertures 3a-c of the stationary disc 3, and control apertures 14a-c aligned with the apertures 3d. The output of the disc 5 is hence a cyclically repeating series of three non-overlapping light pulses along the paths 4a-c. Beam 4a passes through a first dichroic mirror 7a after passage through a first filter 6a. Beam 4b passes through a second filter 6b, the filters 4a, b and mirror 7a being chosen so that beam 4b is reflected from the mirror. The three beams are combined at the photo-cell 11 after passing through a plate 10 having two adjustable apertures 10a, b. The pulses from the control photo-cells 13a-c are supplied to a controller (13), Fig.3 (not shown) which renders each circuit branch operative when the photo-cell 11 is receiving a pulse from its corresponding beam. The output of each measuring branch is applied to a logarithmic amplifier (14a, b) whose output is supplied to cne input of a respective differential amplifier (26a, b), whose other input is supplied with the cutput of the reference branch. The output of each differential amplifier indicates the transmissivity of the sample at a different wavelength and these outputs may each be displayed cn a recorder. To compensate for variations in source output or detector response, the output cf the reference branch is compared with a fixed reference voltage in a differential amplifier (20) whose output includes a thermistor (23). This thermistor is included in the feedback circuit of an amplifier (22) which amplifies the cutput of photo-cell 11. Thus, any fluctuation in the reference output is fed back to the photocell amplifier to maintain its reference output constant. A third measuring beam 4d may be accommodated by having additional apertures in the discs 3 and 5, an additional filter 6c, and a second clichroic mirror 7c. An additional measuring circuit branch is also necessary in this case.
Patent GB-1012345-A (GB)
Title: Quick change variator
IPC: G06M1/06
Filed: 1962-09-28
Abstract: 1,012,345. Counting-apparatus. VEEDERROOT Inc. Sept. 28, 1962 [Oct. 2, 1961], No. 36959/62. Heading G4D. A variator, for use especially in liquid-dispensing apparatus, can be pre-set to operate a total-cost register at a number of different unitcost rates. Any of these rates can be easily adjusted. Gears 70-80 on each of shafts 64, 65, 66, Figs. 4 and 6, are so arranged as to provide speed ratios ranging from 1 to 11 to take care of both decimal and sterling currency. A flow-meter drives the central shaft 65 according to the number of gallons delivered. Corresponding to each stack of gears 70-80 is a stack of levers 93 controlled by turrets 120-122. According to the number of blends of basic fuel and additive so there is an equal number of sides to each turret. Lugs 127 are displaceable to left or right in associated slots, Fig. 8, whereby the price of a blend can be adjusted. When a lug is displaced from normal position it permits its associated lever 93 to engage an idler gear 97 with the associated one of gears 70-80 and also a long gear 98, 101, 103 for the three denominations. The price per gallon set up on lugs 127 is visible in slots 142, Fig. 3, and is indicated on wheels 162, 164, 166. The gears 98, 101, 103 feed differential mechanism of appropriate ratios to drive the total cost register. The blend number is meanwhile displayed at window 141. In operation the attendant presses on knob 180, Fig. 7, to turn gear 173 so moving cam stacks 150, 151, 152, Fig. 6, to blank position and swinging levers 93 to inoperative condition. A locking pin 188 is withdrawn to permit the attendant to rotate knob 180 to indicate the desired blend, bevel gear 185 turning the turrets 120-122 appropriately. Release of knob 180 returns gear 173, whereupon the selected levers 93 establish the required variator drive and indicate the unit cost as previously described. Specifications 776,014 and 855,898 are referred to.
Patent GB-1200765-A (GB)
Title: A refiner for fiber suspensions
IPC: D21B1/12
Filed: 1967-08-11
Abstract: 1,200,765. Refining apparatus. VARGONS MEK. VERKSTAD A.B. 11 Aug., 1967 [30 Sept., 1966], No. 37008/67. Heading B2A. A refiner for fibre suspensions comprises a rotary cylinder with a perforated wall, a stationary drum mounted coaxially within the cylinder, and with an inlet at one end and outlets around its periphery, curved plates mounted stationarily around the outside of the rotary cylinder, each extending across at least the major part of an outlet from the drum and a further part of the cylinder wall, and means for adjusting the clearance between the plates and the cylinder. As shown, the rotary cylinder 26 is mounted on a driving shaft 12 (Fig. 1, not shown). This cylinder has a perforated wall 27 and mounted within it is a distributor drum 18, provided with its inlet (not shown) at one end and outlets 19, directing pulp onto the cylinder wall. Curved perforated plates 30 are placed around the cylinder, each covering the major part of an outlet 19 and a further part of the cylinder wall. These plates are connected by pairs of links 34 and 35 (only one of each pair shown), the first is also connected to short links 36 pivotably mounted at 37, and the last by lugs 32 to a yoke 38 mounted on a screw-adjustment device 40, so that the clearance between the plates 30 and the cylinder 26 can be adjusted.
Patent GB-1023086-A (GB)
Title: Improvements in centrifugal or rotary dryers
IPC: B04B3/04
Filed: 1964-09-10
Abstract: 1,023,086. Centrifugal strainers. ETABLISSEMENTS POMPES GUINARD. Sept. 10, 1964 [Sept. 13, 1963], No. 37130/64. Heading B1D. In a centrifugal strainer comprising a rotary sieve drum 1 and a rotor 3 having generally helical blades, the rotor rotating within the drum at a slightly greater speed than the drum itself to urge solid material axially along the space between the drum and rotor during centrifuging, the said space is divided into zones which each contain helical portions 4 extending from the rotor to the drum 1 and blades 5 which extend only part way from the rotor to the drum. A slurry delivered to the space is thus alternately moved one zone axially by a portion 4, then spread over the cloth lining 2 of drum 1 by a blade 5, Fig. 2 (not shown). Portions 4 and blades 5 may be separate members and resiliently mounted on rotor 3. Alternatively a blade 5 in one zone may be an extension of a portion 4 in a preceding zone, Fig. 4 (not shown), and blades 5 may be resiliently deformable, articulated, serrated or otherwise shaped, Figs. 5, 6 (not shown). Some blades may be replaced by rollers, Fig. 7 (not shown), articulated on rotor 3. Slurry is delivered to the space by tube 6 and straight or helical passages 7 through the rotor 3, which open tangentially into drum 1. Liquid centrifuged from drum 1 in the first two zones is collected at 11 and recycled, being applied by channels 14 to layers of solids spread over the drum in later zones, to recover fine solids. Wash liquid or liquids are supplied to different zones by conduits such as 20, 21, and a wash liquid may be recycled from one zone to the next. Solids are discharged into a volute 22, in which resilient or particulated blades 23, carried by the rotor or drum, engage. Successive zones may be defined by steps on the drum 1 and rotor 3, and/or zones may be separated by annular projections on rotor 3, having grooves where material is transferred from one zone to the next.
Patent GB-840277-A (GB)
Title: Improvements in or relating to a helicopter rotor head combination with mechanism tofly rotor level
IPC: B64C27/54
Filed: 1957-11-28
Abstract: 840,277. Controlling helicopters. DOMAN HELICOPTERS Inc. Nov. 28, 1957 [Dec. 27, 1956], No. 37143/57. Class 4. A helicopter rotor having means for flying the rotor level or horizontal at low speed of rotation comprises a fixed pylon 10 provided at its upper end with a universal joint 12 having a shell 14 formed with bearings 18 to rotatably support a casing 19 in which blades 21 are rotatably mounted for pitch changing movements about axes X. The blades are driven through gearing 26, a drive shaft 22, universal joint 23, stub shaft 24 and cap 25. The pylon provides a universal mounting for the non- rotating element 37 of a swash-plate, the rotating element 29 being connected to blade horns 39 by links 38. The whole is enclosed by a sealed longitudinally-flexible tubular housing 72. The non-rotatable element of the swash-plate is connected to the pylon at two points 90 degrees apart by two fluid-pressure jacks 42 each controlled by a valve 48. Each valve is supplied with fluid through a pipe 61, gland 62, a central bore 60 in the drive shaft, a valve 65 and a conduit 64 connected to a pump (not shown). The valve may be controlled manually or by a speed-responsive device 66. The valves may have a conduit return to a reservoir (not shown) or they be open and exhaust into a collecting chamber 73 connected to the reservoir. Each blade is provided with a pivoted stop 78 controlled centrifugally by a weight 81 and provided with stepped recesses 80 which may selectively engage a stop ring 82. In operation, the device 66 closes valve 65 at high speed but permits it to open at low speed. This enables fluid to be transmitted to the valves 48. If the rotor is level the valves are balanced and do not supply jacks 42, but should the rotor be inclined, as shown in the figure, fluid will be transmitted to the appropriate jack which will operate the swashplate and thereby the blade pitch-change mechanism to bring the rotor back to a level attitude. A collective-pitch control mechanism 32 is provided. Specifications 704,802 and 754,171 are referred to.
Patent GB-368398-A (GB)
Title: Improvements in or relating to non-skid devices for the wheels of road vehicles
IPC: B60C27/08
Filed: 1930-12-10
Abstract: 368,398. Tyre gaiters. CONNOP, L. H. and CONNOP, H. B., Western Works, Cradley Heath, Staffordshire. Dec. 10, 1930, No. 37199. [Class 144 (ii).] A detachable tyre gaiter consists of a central tread plate 1, with upturned edge portions 3, 4, and chain elements comprising portions 5, 6 extending circumferentially of the tyre 15 and transverse e portions 7. The device is attached to the tyre by means of straps 14.
Patent GB-876158-A (GB)
Title: Improvements relating to a method of and apparatus for mixing and comminuting materials
IPC: B01F7/04
Filed: 1958-11-19
Abstract: 876,158. Mixing appliances. LODIGE, W., LODIGE, F., and LUCKE, J. Nov. 19, 1958 [Dec. 20, 1957], No. 37247/58. Class 86 A mixing and comminuting method and apparatus particularly for dyestuffs, for mixing fibrous materials as asbestos, paper and lintens with powders, or for mixing small quantities of liquid with solids to form a granulate, comprises a horizontal cylindrical container 1 with rotating axial shaft 5 carrying paddles 7 which may be ploughshare shaped; and rotating cutters 13, (see also Fig. 6, not shown). The paddles and cutters are so arranged that the material is continuously interchanged between them. A paddle is provided at the extreme end of the cylinder as at 9a. Liquid may be supplied from a container 14 through a pipe 15 to the centre of the cutter 13 by the rapid rotation of which it is atomized; or by way of a hollow shaft 9a, as at 16. In these cases the cutter con-  sists of a centrifuging disc with blades ar-  ranged round its periphery, (Fig. 3, not shown-).
Patent GB-889007-A (GB)
Title: Improvements in or relating to press tools and presses
Inventor: CORSON GEORGE WILLIAM
IPC: A41H37/02
Filed: 1956-12-07
Abstract: 889,007. Press tools for attaching pronged articles. GRAFTON & SON Ltd., WALTER. Feb. 24, 1958 [Dec. 7, 1956], No. 37559/56. Class 89(3) In a press for inserting pronged articles such as fastening hooks used on garments, a tool for supporting the pronged article comprises a body 9, a member 11 pivoted to the body and provided with a toe 13 arranged to be received between parts of the article, e.g. between a tongue 14 and a pronged base 15 of a fastening hook 16, the member 11 being biased by spring means 17 into an operative position wherein the toe 13 lies adjacent to means on the body arranged to locate the article but being capable of pivotal movement to disengage the toe from the article as the tool and article are moved apart. The pivot 12 of the member 9 may be provided with clearance to allow for variation in thickness of the articles. The tool may be used in a press having a mandrel to support the garment as disclosed in Specification 889,006. Specifications 752,898, 756,553 and 794,173 also are referred to. Reference has been directed by the Comptroller to Specification 789,109.
Patent GB-1354924-A (GB)
Title: Apparatus for the longitudinal cutting of paper webs for the  folding apparatus of a rotary printing machine
IPC: B26D1/24
Filed: 1971-08-10
Abstract: 1354924 Cutting webs MASCHINENFABRIK AUGSBURG-NURNBERG AG 10 Aug 1971 [11 Aug 1970] 37588/71 Heading B8R  A web 1, Fig. 1, or 6, Fig. 2, is fed past an auxiliary cutter 3 or 8 which cuts a strip off the web, the strip being directed over turning bars 9 to bring it over the remainder of the web, the assembly then passing between a knife 10, Figs. 1, 2 and 5, and a cutting roller 4 having peripheral cutting grooves of which one is aligned with the knife. In Fig. 1, the knife cuts the web remainder into two, so that the original web is finally cut into three equal strips. In Fig. 2, the knife cuts both parts of the web into two so that the original web is finally cut into four equal strips. A plurality of webs may be supplied, in which case an auxiliary cutter is provided for each web, but the entire assembly is cut by a common cutter combination 10, 4. The strips pass from the cutter 10, 4 to a former 2 which brings them all together into superposed relationship. The former is adjustable laterally according to the web width and number of strips to be cut from the web. The roller 4 is adjustable laterally independently of the former, and comprises a supporting shaft carrying a tubular casing on which are mounted grooved cutting rings. The shaft and casing may be adjustable as a unit, or the casing be adjustable along the shaft.
Patent GB-856562-A (GB)
Title: A liquid supply system for controlling and equalizing the flow of liquid from two containers to a collecting tank
IPC: B64D37/14
Filed: 1957-12-04
Abstract: 856,562. Emptying tanks. FLIGHT REFUELLING Ltd., CHANDLER, A. R., and WATTON, J. Jan. 22, 1959 [Dec. 4, 1957], No. 37817/57. Class 21. [Also in Groups XXVIII and XXIX] A system for emptying two containers 12, Fig. 1, into a common collector tank 13, comprises a conduit 15 from each container 12 leading to separate valve-controlled orifices opening into the collector tank 13, the relative sizes of the orifices being so selected that the overall flow characteristics of the two flow paths are substantially identical, and the valve closure members being moved, when open, to positions in which they do not affect the flow characteristics of the orifices. Each orifice comprises a bush 34, Fig. 4, closable by a valve head 43 mounted in a common member 38 pivoted at 37. A compression spring 50 normally holds the valves open, but in response to float operated means a solenoid 18 can be energized to close the valves. As shown the tanks 12 are wing-mounted fuel tanks in an aircraft, and the tank 13 has an outlet 14 leading to the engine or engines.
Patent GB-834724-A (GB)
Title: Gyroscope
IPC: G01C19/44
Filed: 1957-12-06
Abstract: 834,724. Gyroscopic apparatus. SPERRY RAND CORPORATION. Dec. 6, 1957 [Dec. 19, 1956], No. 37977/57. Class 97(3) A gyroscope has a tilt detector, responsive to angular movement of the rotor case about a gimbal axis, which applies an electrical signal to a torquer including a weight which is moved in response to the signal to apply a torque to the rotor case in a sense to oppose the angular movement and also a torque to oppose that applied to the rotor by a shift in the centre of gravity of the tilt detector. As shown in Fig. 1, the rotor case 4 of a gyrovertical is journalled in a half-gimbal 1 supported in turn by a trunnion 2 in a bearing 3. Torquers 10, 13 mounted on the rotor case are controlled by signals from liquid levels 7, 8. Each torquer consists of a slug 13 of magnetic material (Fig. 3) movable longitudinally within a solenoid 17 and normally centralized by springs 14. 15. When the level is not tilted, no current flows in the solenoid; but tilt of the level causes one end of the solenoid to be energized more than the other, so that the slug is attracted to one end. The displacement of the slug causes, by the action of gravity, a torque to be applied to the gyroscope to precess it in such a direction as to reduce the tilt. A switch 18 may render one or both of the torquers inoperative when a given bank angle is exceeded. When an aircraft carrying the gryoscope moves in a curved path, centrifugal force acting on the slug, and the shift in the centre of gravity of the system owing to the elasticity of the gimbal and bearings, together produce a torque which gives rise to an erroneous precession of the gyroscope. It is shown that this effect can be compensated by the provision of a weight 20 mounted on a threaded rod fixed to the gimbal. If the springs 14, 15 of the torquer are weak, the slug 13 will move to an extreme position whenever the level supplies current to the solenoid 17. It can be arranged, e.g. by using stiffer springs that the displacement of the slug is approximately proportional to the amount of tilt. The error due to the movement of the centre of gravity of the liquid in the levels under tilt or acceleration is compensated by seting the torquers at a slight angle to the gimbal axes. Known methods of correcting errors arising in curved flight may also be applied.
Patent GB-345291-A (GB)
Title: Improvements in fusing non-conducting inorganic materials
IPC: H05B6/02
Filed: 1929-12-11
Abstract: Non-conducting inorganic materials are fused by a high-frequency magnetic field, in a non-conducting container, after prior treatment to render them conductive in one of the following ways.  In some cases the materials may be rendered conductive by preheating by means other than electric heating. Addition of conducting substances which volatilize or burn without residue at high temperatures, such as carbon or metal powder, may also be employed.  In a further modification the particles or pieces of non-conducting material are treated so that a skin or coating of conducting material, such as silicon carbide, is formed thereon.  The process is applicable to the fusion of oxides such as alumina, magnesia and chromium oxides, and the fusion of carbides, nitrides and borides.ALSO:In processes for fusing non-conducting inorganic materials, applicable to the manufacture of aluminium from bauxite, titanium from rutile, and zirconium from monazite sand, the materials are fused by a high-frequency magnetic field, in a non-conducting container, after prior treatment to render them conductive in one of the following ways.  In some cases the materials may be rendered conductive by preheating by means other than electric heating.  Addition of conducting substances which volatilize or burn without residue at high temperatures, such as carbon or metal powder, may also be employed.
Patent GB-1024605-A (GB)
Title: An arrangement for distributing liquids in a gas or vapour
IPC: B01F25/74
Filed: 1964-09-17
Abstract: 1,024,605. Contacting gases with liquids. METALLGESELLSCHAFT A.G. Sept. 17, 1964 [Oct. 8, 1963], No. 38065/64. Heading B1R. [Also in Division F2] In apparatus for contacting gases with liquids of the type wherein in a cylindrical casing one or more discs, plates, spherical or cylindrical segments or cylinders, shown in Fig. 1 as discs 2-10, is or are arranged on a rotatable shaft to atomize liquid into a gas passing through the casing. The rotatable shaft I is pendantly supported in the casing by a bearing member 11 and is held in its vertical position by one or more bearings such as 14, 15 and 16 resiliently connected to the casing. Each of the bearings 14, 15 and 16 comprises three pairs of pivotally mounted and connected arms and with each pair of arms an associated U-shaped spring (Fig. 3 not shown). The bearing member 11 has a flange with a spherical face which is received in a spherical dished portion of a socket. The shaft is rotated by an electric motor 13 coupled to the shaft 1 through a flexible bellows element 12 and where the shaft enters the casing a flexible bellows element is interposed between the casing and a stuffing box.
Patent GB-832365-A (GB)
Title: Device permitting the automatic alteration of the transmission ratio in a mechanism consisting of a linkage between two rods
IPC: B64C13/24
Filed: 1956-12-13
Abstract: 832,365. Linkwork. NORD-AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES, [formerly SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU NORD.]. Dec. 13, 1956 [March 13, 1956], No. 38103/56. Class 80 (3). A linkage, particularly for the control mechanism of an aerodyne control surface, is adapted to provide an automatic variation in the transmission ratio during operation of the mechanism, as shown, on actuating rod 1 from the cockpit of an aircraft is coupled to a lever 4 which is coupled by another link 2 to one arm 11 of a quadrilateral 9, 10, 11, 12, mounted upon a fixed axis O, O<SP>a</SP>, an extension of the arm 11 being coupled to a rod 5 connected to a control surface of the aircraft. The quadrilateral 9, 10, 11, 12 is also controlled by a rod 3 between the lever 4 and the arm 10 of the quadrilateral so that as the rod 1 is moved from one position to another the distance between the axis O, O<SP>a</SP> of the quadrilateral and the pivot 8 to which the link 2 is connected is varied which results in an automatic variation of the transmission ratio between rods 1 and 5. In a modified arrangement the rod 3 is connected between an extension of the lever 4 beyond its axis O1 O1<SP>a</SP> and an extension of the arm 10 of the quadrilateral. When the travels of the control column and control surface are not symmetrical on either side of the neutral position the rod 3 may be duplicated, one rod acting in compression only and the other in tension. Alternatively a single rod 3 may be split and coupled to an intermediate rocking lever. In another arrangement the rod or rods 3 are omitted and the arm 10 of the quadrilateral is fixed.