Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1977-05-11
1979-03-20
Godici, Nicholas P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51138, 51DIG17, 300 17, B24B 1900
Patent
active
041446755
ABSTRACT:
The present invention provides an apparatus for treating the top ends of flexible cords or filaments. It comprises holding means for holding articles having flexible cords, delivery means for delivering said holding means in a predetermined direction, cylindrical grinding means disposed at a position adjacent to a delivery passage for delivering said holding means, and means for rotating said cylindrical grinding means around its own axis and around an axis at right angles to its own axis. By virtue of the feature that the cylindrical grinding means is rotated around its central axis and around the axis rectangularly crossing the central axis, the top ends of flexible cords, such as bristles of toothbrushes, can be polished and ground from all the directions and very smooth and round outer ends can be obtained at high efficiency and high rate. This effect can be further enhanced when a plurality of such cylindrical grinding members are disposed so that rotation directions of every two adjacent cylindrical grinding means are reversed to each other.
REFERENCES:
patent: 1888675 (1932-11-01), Izawa
patent: 2227126 (1940-12-01), Cooke
patent: 2669075 (1954-02-01), Dreyfus
patent: 2685477 (1954-09-01), Baumgartner
patent: 3451173 (1969-06-01), Hazelton
patent: 3619953 (1971-11-01), Hosoya
Fukuda Shiro
Muto Yasutami
Suzuki Hiroshi
Takahashi Hiroshi
Godici Nicholas P.
K. T. Manufacturing Co., Ltd.
Lion Hamigaki Kabushiki Kaisha
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