Turning – Lathe – Having hollow cutter head
Patent
1996-11-26
1999-11-30
Pitts, Andrea L.
Turning
Lathe
Having hollow cutter head
82 53, 82 531, 82 702, 82113, 15 931, B23C 516
Patent
active
059922770
DESCRIPTION:
BRIEF SUMMARY
Hitherto it has been a problem to achieve a simple and effective operation of the rotor together with a simple and rapid fixing of a cleaning apparatus in engagement with the object which is to be cleaned. This is especially the case where it is desirable to clean a pipe member in a pipe conduit or similar cylindrical member in a larger construction, where the apparatus is readily able to be mounted and dismounted with a simple grip by manual handling. Further it has been a problem to achieve a proper and accurate cleaning effect.
In U.S. Pat. No. 3,820,184 it is shown an apparatus of the type described above. An annular rotor is at a local upper portion thereof supported on bearings located at a lower portion of a house shaped stator. A local gear rimmed section of the rotor is being clamped between an upper gear rim of a driving pinion within the stator and said bearings at the lower portion of the stator. If not supported by separate support means, the apparatus is to be supported locally on the part to be treated by means of brush bristles suspended at the inner rim of the annular rotor. This means that a brushing effect is dependent of the gravity of apparatus and that the brushing effect is mainly obtained by means of a gravity force acting locally in the apparatus. In practice the brushing effect is provided by one or two brush bristles at a time.
Apparatuses of the afore-mentioned kind are also shown in U.S Pat. Nos. 2,299,523, 2,635,270, 2,657,409, 2,715,235, 4,124,914 and 5,001,801, which all have a holder member which is supported directly against the cylindrical part by means of support wheels mounted in the holder member.
In U.S. Pat. No. 4,124,914 the apparatus is supported directly against the cylindrical part to be treated by means of a first upper forward pair of wheels and a second upper rearward pair of wheels. An apparatus of this kind has a rather voluminous and heavy structure and accordingly a restricted application in practice. Such structure require extra working space and allows the apparatus to operate solely on rectilinear parts, i.e. cylindrical parts without curvatures or bendings. A double-arm lever having a tool at one end thereof and a counterweight at the opposite end thereof provides cleaning by centrifugal forces developed at the counterweight during rotation of the rotor. This means that the rotor of the apparatus is accurately supported on the cylindrical part to be treated and that the cleaning is provided by separate cleaning means acting independently of the support but being dependent of said accurate support to operate properly.
With the present invention the aim is to provide a cleaning apparatus for scraping off or like removal of rust, paint or other deposits from the peripheral surface on a cylindrical or substantially cylindrical part. More precisely the apparatus is particularly designed for accurate and circumferentially evenly distributed cleaning effect on a great variety of different cylindrical parts, including rectilinear parts and parts with curvatures, bendings and other irregular surfaces. In this respect the aim of the present invention is to provide an adjustable scraping or like removal effect on the part to be treated and simultaneously to provide an adjustable wheel or roller support in combination therewith.
The main aim of the present invention is in this respect to provide a cleaning apparatus which has a simple and effective structure and has an efficient action on the part to be treated simultaneously as it is efficiently supported on the part to be treated and thereby is easy to handle in practical use.
Briefly, the invention provides a pipe cleaning apparatus comprising a holder means, a rotor mounted in the holder means for rotation about a central longitudinal axis thereof and a power-driven drive means mounted on the holder means for rotating the rotor relative to the holder means about the longitudinal axis of the rotor. In addition, the pipe cleaning apparatus includes a plurality of centering mechanisms which are mounted on the rot
REFERENCES:
patent: 2715235 (1955-08-01), Dawson
patent: 3387480 (1968-06-01), Eaker et al.
patent: 4124914 (1978-11-01), Buzhinsky et al.
patent: 5001801 (1991-03-01), Jarvis et al.
patent: 5056388 (1991-10-01), Dekker et al.
Dalseide & Co.
Pitts Andrea L.
Tsai Henry W. H.
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