DRIVING AND REVERSING GEAR FOR SLIDE-RESTS OR PLANING OR SHAPING MACHINES
Year: 1885

page_text: I, GEORGE WILLIAM BUDD of 127 Long Acre in the County of Middlesex,
engineer do hereby declare the nature of my invention for DRIVING AND
REVERSING GEAR FOR SLIDE-RESTS OR PLANING OR SHAPING MACHINES and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :—
This invention has for its object the improvement of driving and reversing gear
for slide rests or planing or shaping machines. In order to do this I cause two or
three wheels to be placed side by side on a spindle, which may be either the screw
or shaft itself that is to be driven, or it may be a supplementary shaft connected to
the screw or shaft to be driven by a series or train of toothed wheels (as in Ashton's
driving gear) or by some other convenient method. My invention will be more
readily understood on reference to the accompanying drawings in which like letters
represent like parts. In the arrangement there shown (which is intended to be an
addition to the driving gear before mentioned) the first pulley A in Fig. 2 is fixed
directly to the spindle or shaft by a pin or key (a); the middle pulley, B, is free
and is the idle pulley on which the baud runs when the machine itself is at rest;
and the pulley C is made to contain an internally toothed wheel (b) attached to
itself; and the whole revolves freely on the shaft S. The internally toothed wheelb
gears into a pinion (2), (attached either to a plate (1) as shown, or to some convenient
support), which pinion gears into another (d) attached, by the pin, e, to the shaft
or screw. Fig 1 shows the arrangement of these gear wheels. The pulley B may
be omitted; though its presence is very advantageous.
When the slide rest or machine is in action a band running in one direction
continuously around the pulley A will cause it to revolve and the machine to make
its traverse; but if the band be shifted, either by a hand-lever or automatically,
to the pulley B, the motion of the shaft ceases and the rest or machine remains
still; if the band is again shifted to the pulley C, the motion of the shaft will be
reversed and with it the direction of the traverse of the machine.
The arrangement shown is intended for a slide rest driven by gut bands, but if
the pulleys are made slightly convex on their edges this arrangement is equally
suitable for a machine such as a planing machine driven by straps: and it is also
[Price 37

page_text: suited for a planing machine in as much as the increased sped necessary for the
return traverse is obtained in pulley C which causes the speed of the shaft to be
increased. If it is required, the speed of the shaft when the band is on A or C may
be made the same by adding a similar train of wheels to A, with the addition of
another pinion to keep the motion in the same direction.
The above described simple contrivance for driving and reversing slide rests, or
planing, or shaping, or similar machines, possesses the further advantage of having
all its geared parts under cover, thereby doing away with the risk of accidents to
persons and to the machine.
I do not claim to have invented the several parts of the driving apparatus
herein before described.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
1. The construction in combination of driving and reversing gear for slide rests
or planing or shaping machines substantially as above described.
2. The construction of reversing gear applicable to slide rests or planing or shaping
machines substantially as above described.