摘要:
An apparatus for boring a web of shape steel, comprising a boring unit (24) squarely facing a web of cramped shape steel (19), and an arm plate (11) for supporting the boring unit (24). The apparatus is further provided with a fastening unit (18) fixed to the arm plate (11) to support the shape steel (19) on the opposite side of the boring unit (24) by urging it in the direction substantially parallel to the axis of rotation of the boring unit (24).
摘要:
The apparatus for boring a web of a section is provided with a boring device (24) which is opposed perpendicular to the web of a clamped section (19) and bores it; and arm plates (11) for supporting the boring device (24). The boring apparatus further has a clamping mechanism (18), also attached to the arm plates (11), for clamping the section (19) from each side thereof along the direction substantially parallel to the rotational axis of the boring device (24).
摘要:
The invention relates to a support and coupling structure for a portable drill for railway tracks. It comprises two guide rails (1) provided with racks (10), a vice (3, 3'), a support (5) and manoeuvring means (6). The vice (3, 3') has a first and a second jaw (7, 8) inferiorly shaped such as to grip the upper flange of the rail (4) and superiorly equipped with a strike and a counterstrike plates (74, 84). The jaw (7) is laterally fixed between the guide bars (1) and rests on the rolling plane (40) of the rail (4). The second jaw (8) is connected to the first jaw (7) by means of a flathead pivot (9), with a counterspring (12) and a key (100). The support device (5) comprises an adjustable drill (2) support device and sliding seats (51) on the guide bars (1). The manoeuvring means (6) comprise first gears (60) enmeshing with the racks (10) and keyed on a first shaft (61), which shaft (61) is also equipped with a handle (62) and second gears (63) enmeshing with the first gears (60) and keyed on a second shaft (64) equipped with a turning handle (66).
摘要:
A drilling machine for drilling fishplate holes in the end of a rail (10) for a railway or railroad track comprises an electric power drill (20) slidably mounted on a column (14) and supporting on its spindle arbor (58) an annular cutter (26). The column (14) is attached to a base (12) which is firmly clamped to the rail (10) by a clamping mechanism (16a). The latter comprises a replaceable former (30) attached to the base (12) and a clamping jaw (18a) on a lever (48). The latter is actuated by a worm mechanism (72, 74). The jaw (18a) is directly opposite the former (30) and in line with the drill spindle arbor (58). The drilling machine is lightweight and does not have any ground support.