Improvements in Tool Guiding or Steadying Appliances for Boring, Drilling, Facing, and Similar Machines.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Tool Guiding or Steadying Appliances for Boring,
Drilling, Facing, and Similar Machines.
I, HENRY WILLIAM JAMES, of the James Cycle Works, Sampson Road North,
Sparkbrook, in the City of Birmingham, Cycle Manufacturer, do hereby declare
the nature of this invention to be as follows:-
This invention has relation to machinery for drilling, boring, recessing, facing
and performing other machining operatings upon metal, and has for its object
the steadying of the drills or other tools employed, whereby the starting of the
work is facilitated and accurate drilling or other work is produced.
In ordinary multiple drills and other tools employed in machining metals,
the acting ends of the drills or cutters are unsupported, and owing to the ends of
the tools being extended a distance from the holders, they run unsteady and will
not properly enter the work.
Now by my invention the said tools are made to run steady and properly enter
the work, owing to the same passing through holes in a steady or guide coming
coincident with the axes of the work held in the chucks or holders.
Thus, in carrying out my invention in connection with a multiple drilling
machine, I take an ordinary bed with a poppet or headstock upon one end having
through it an advancing screw carrying at the fore part a non-rotating but
advancing and retiring drill carrier, and at the other end a hand wheel or capstan
levers. The other end of the bed has a frame suitably bolted thereto and having
directed horizontally therethrough a suitable number of spindles corresponding
to the number of drills advanced and held by the drill carrier. These said spindles
are driven by spur gear from off a common central driving spur wheel located
between them.
The ends of the spindles opposed to the drills have chucks or holders for carrying
the work whilst coming between the said chucks and the drills is an upright
steady ring or plate, which may be hinged to one side of the bed and made fast
or clamped to the other by an eye and pin or other means, so that the said plate
can be thrown back out of the way when it is desired to remove the work from
the chucks after the drills have retired.
This steady ring or plate has a series of holes corresponding in size and number
to the drills employed, through which holes the drills travel on being advanced
up to the work, and are steadied and made to start properly thereby.
Instead of the work rotating and the drills being fixed as described, the drills
may rotate and the work remain stationary, or both drills and work may be
driven.
The application of my invention to boring, recess, facing and other machines

page_text: for performing operations upon metal differs in no essential respect from its
application to a multiple drilling machine as herein described.
Dated this 6th day of April 1897.
Improvements in Tool Guiding or Steadying Appliances for Boring,
Drilling, Facing, and Similar Machines.
I, HENRY WILLIAM JAMES, of the James Cycle Works, Sampson Road North,
Sparkbrook, in the City of Birmingham, Cycle Manufacturer, do hereby declare
the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This invention has relation to machinery for drilling, boring, recessing, facing
and performing other machining operatings upon metal, and has for its object,
the steadying of the drills or other tools employed, whereby the starting of the
work is facilitated and accurate drilling or other work is produced.
In ordinary multiple drills and other tools employed for machining metals,
the acting ends of the drills or cutters are unsupported, and owing to the ends of
the tools being extended a distance from the holders, they run unsteady and will
not properly enter the work.
Now by my invention the said tools are made to run steady and properly enter
the work, owing to the same passing through holes in a steady or guide coming
coincident with the ends of the tools and the axes of the work held in the chucks
or holders.
Figure 1 of the accompanying drawings represents a multiple drilling machine,
fitted with a tool steadying or guiding appliance according to my invention.
Figure 2 is a front elevation of the same, with the bed of the machine shown
in section upon the dotted line r.
Figure 3 is a like view as Figure 2, but upon an enlarged scale.
Figure 4 is a top side plan of Figure 3 and Figure 5 an edge view thereof,
whilst Figure 6 is a like view as Figure 5 but with the joint whereon the guide
ring turns, shown in section.
Figure represents the worm gearing for imparting motion to the driving
shaft of the spindles carrying the rotating work holders.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
a is the framing of the machine, supporting a main shaft b, with a wormi
wheel b', keyed thereto, and receiving rotatory motion for driving said shaft, from
a worm c, on a counter axis c¹, turning in independent bearings c³, and having fast
and loose pulleys 3, 4, driven by the band c³.
d is a spur wheel, keyed also on the shaft b, and having intergearing with it
six pinions e, which drive a like number of spindles e¹, mounted in bearings in
the frame e², and carrying rotating work holders or chucks f. 9 are a corre-
sponding series of fixed drills, adapted to be taken up to and away from the work
by the turning of the capstan levers, handle wheel or equivalent g¹.
The tool or drill steadying device A, which is located between the said chucks
and the drills consists of an upright ring, frame or plate A', having supports A²,

page_text: and being hinged at one side A, to the adjustable plate A³, bolted to the bed and
made fast or clamped to the other side by a removable pin A8, passing through
coincident holes in the knuckle parts A, A, of the carrying plate and support
respectively, so that the said plate admits of being thrown back out of the way,
after the pin has been withdrawn when it is required to remove the work from the
chucks after the drills have retired and to place fresh work in position.
""
This steady ring plate or frame has a series of holes A, corresponding in size
and number to the drills employed and through which holes the drills travel on
being advanced up to the work and are steadied or prevented from "wobbling
and made to start or enter properly thereby. The tool guide may be of any shape
or design and may be provided with one or any number of guide holes for steadying
a corresponding number of drills or tools, and it may be either a permanent fixture
to the machine or be entirely detachable therefrom and further it may be made to
slide in and out or rise and fall into its position of use instead of being hinged
as described, it may also swing on a vertical or other pivot instead of a horizontal
one. It is also applicable to machines in which the drills rotate and the work
remains stationary, or both the drills or other tools and the work may be driven.
The application of my invention to boring, recessing, facing and other machines
for performing various operations upon metal, differs in no essential respect from
its application to a multiple drilling machine as herein 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: :-
First: A tool-guiding or steadying appliance for boring, drilling, facing and
other machines, consisting of a frame or equivalent having a series of guiding
holes coming coincident with the ends of the tools, which pass through the said
holes and are steadied and guided thereby, substantially as described and set forth.
Secondly: A tool-guiding and steadying appliance for boring, drilling, facing
and other machines, consisting of a ring, frame or equivalent, having a series of
holes through which the tools pass, and being hinged to the framing of the
machine in such a manner as to admit of the same being swung or turned out of
the way, substantially as and for the purpose as described and set forth.
Dated this 7th day of December 1897.
}
HENRY WILLIAM JAMES,
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.