Improvements in Drilling Machines or Apparatus.
Year: 1888

page_text: Date of Application, 29th Oct., 1858
Complete Specification Left, 26th July, 1889-Accepted, 31st Aug:, 1839
PROVISIONAL SPECIFICATION.
Improvements in Drilling Machines or Apparatus.
JOHN EDWARD ROGERS Sycamore Road, Smethwick in the County of Stafford,
Engineer do hereby declare the nature of this invention to be as follows, IMPROVEMENTS
IN DRILLING MACHINES OR APPARATUS :-
In design the frame of a machine constructed according to my Invention would
be similar to the ordinary machine. The difference of construction being as follows.
In place of the ordinary spindle of the drilling machine I make a hollow spindle
arranged to fit frame bored out to receive it. The upper end of spindle is bored
out and screwed to receive feed screw and the lower end made to receive shank of
drills in the ordinary manner.
The feed screw is arranged to take its thrust for putting pressure on for drilling
against a steel centre fixed in upper part of frame of machine, the pressure or
feed is put on automatically by the following arrangement. The upper end of
feed screw is fitted with what would be in appearance a shrouded pulley between
the shrouds of this feed screw wheel and fitting easily on its diameter is a ring
or band. This band has a projection that extends on to the frame and acts as a
stop to keep the band from going round with the feed screw wheel when the
machine is in motion, and for regulating the feed of the machine the band is
arranged with a thumb screw which is brought to bear on a loose metal block
which in turn bears on the feed wheel and retards it in its motion more
or less
as required, to avoid inequalities in the feed a spring is arranged between the end
of the thumb screw and metal blocks. When the thumb screw is arranged in a
desirable position for feeding, then it may be locked in that position by a lock nut..
The main spindle receives its motion from the driving shaft through bevel or mitro
wheels. The mitre or bevel wheel on driving shaft has cast on or fixed to it a spur
wheel which drives the gear for changing the speed of the machine. The gear shaft is
arranged in a parallel line with the driving shaft and is arranged with wheels according
to the speeds required in the machine.
The gear is changed by sliding the driving shaft out of the clutch of the driving bevel
wheel and brings into gear the fixed spur wheel on the driving shaft.
The self-feed of the machine may be made intermittant by a cam and lever arrange-
ment worked from the machine pressing the feed gear instead of the thumb screw as
before. mentioned.
This machine can be used for power by combining with it the ordinary reversing
gear to change the direction of the machines running and the design of the machine
may be varied without departing from the principle of the invention.
Datad this 97th dox of October 1900
COMPLETE SPECIFICATION.
Improvements in Drilling Machines or Apparatus.
JOHN EDWARD ROGERS, Sycamore Road, Smethwick, in the county of Stafford,
Engineer, do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the following
statement:-
Figures 1 ว 3 and 4 cha
Π
drilling machine constructed according to me

page_text: E is the main frame of machine. F fly wheel of machine. G main spindle of
machine. H feed screw of machine. I bevel wheel for driving main spindle.
J combined bevel wheel and gear pinion. K self feed friction disc. L top plate of
self feed friction disc. M friction ring. M' friction block. N steel centre fixed in
frame of machine to take the thrust of the end of the feed screw when the machine is
in operation. O and P gear wheels for speeding machine. R lock nut of pressure
screw S, which screw S gives pressure through spring E¹ to friction block M' in obtaining
the feed motion of the drilling machine.
T main driving shaft of machine which is constructed to act as a sliding gear shaft
which can be changed in position when the speed or power of machine is required to
be altered. U gear wheel. V gear shaft on which are keyed fast gear wheels U and P.
W base plate of machine. X vice for holding work to be drilled which vice
slides freely in base plate W. Y handle for working machine. Z drill fixed in
machine spindle.
The machine in operation acts as follows :-
:-
Motion is given to the main spindle G. from handle Y, shaft and bevel gear I and J,
feed screw H and self feed disc K rotating with spindle M on steel centre N, to cause
the drill to do its work when in motion the thumb screw S is screwed up forcing
the spring E' against friction block M' which retards the motion of the friction disc K
and screw H and giving to the main spindle G carrying drill, a downward movement on
to the work required to be drilled.
When the hole is drilled, by reversing the direction of the machino the drill is
drawn up in position ready for drilling another hole.
The arrangement of the gear of machine Figure 3 is as follows:-
Gear wheels U and P are keyed on shaft V and work constantly in position shewn.
Wheel is keyed fast on shaft T. Shaft T. bas a sliding movement in its bearing
this sliding movement takes wheel O out of gear with wheel P and brings the end of
shaft T into the recess in double wheel J. Shaft T driving the drill spindle direct and
not through the gear wheel U and P.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a
drilling machine the spindle G in combination with feed screw H,
disc K and its various parts as shewn and described.
2. The arrangement of gear wheels and shafts, J. T. O. U. P and V in combination
with the parts constituting claim 1.
Dated this 25th day of July 1889.
JOHN EDWARD. ROGERS.