Year: 1887

page_text: Date of Application, 19th Sept., 1887
Complete Left, 19th June, 1888
Complete Accepted, 27th July, 1888
JAMES GARVIE (Junior) 172 Fenchurch Street London E.C. Engineer do hereby
declare the nature of this invention to be as follows:-
In Milling Machines generally the Spindles which carry the Cutters run in Bearings
which are attached to a Sliding Frame, & this Frame is usually raised & lowered in the
case of vertical Milling Machines, or drawn in & out by some mechanical means in
Horizontal Milling Machines. This Frame being very much larger than the Spindle in
many cases this prevents the Spindle from entering a small space so as to mill out
the parts desired to be milled.
In my invention I carry the Spindle through the centre of a Tube and in this Tube
I put conical or other suitable adjustable Bearings. At one end of the Spindle I fix
my Milling Cutter & at the other end of the Spindle which projects through the Tube
I fix a geared Wheel or Pulley for driving the Milling Spindle.
When I use a geared Wheel I make the Teeth long enough to give me sufficient
length of Feed & when I use a Pulley I make a sufficient depth for the same reason.
I prefer also to carry a Bracket or other suitable arrangement fixed on to the outer
Tube & carrying the Centre placed on a line with the Milling Spindle.
My Invention also includes an improved arrangement for steadying the lower end
of the Milling Cutter, consisting of a Bracket with Socket drilled out to fit the lower
end of the Tube which carries the Milling Spindle, & made so that it can be fixed with
a Screwed Nut or other means in any position.
Dated this 17th day of September 1887.

page_text: JAMES GARVIE Junior of 172 Fenchurch-Strect in the City of London 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:
My invention relates more particularly to spindles for Milling Machines and
the manner of their construction I have three objects in view :-
1st. To construct a spindle which shall have its bearing as close as possible to the
Milling Cutter and―
2nd. To arrange those bearings inside a tube of suitable size so as to enable the
Milling cutter to work into confined spaces.
3rd. To arrange a steadying guide or bracket which can be used from the tube
with a Bracket to support the lower end of the cutter & thus keep the cutter well up-
to its work when taking a side cut. This guide arranged to move round quickly in
any direction. The spindle may be driven by belt, cord, gearing or worm and wheel
or any other suitable manner. This spindle is also suitable for drilling or boring and
can be driven at any speed required.
Fig. 1. is a longitudinal section of a Milling Spindle on Bracket with two Bearing.
Fig. 2. is longitudinal elevation of the same spindle.
A is a bracket which carries 2 Bearings B. B. C is the Tube which carries the
bearing of the revolving Milling Spindic. E is the steadying guide or Bracket for
steadying the point of Milling Cutter. F is the Bracket for carrying the top of the
spindle B. G is the driving pulley which can be substituted for any other form of
driving gear. His a hand wheel for working the feed of the spindle. This can be
made automatic by means of gearing into the hand wheel.
The Tube C does not revolve but slides through a Key at I having a groove cut in
the length of the Tube. The Hand wheel H is screwed to form a nut a similar thread
being cut in the Tube to give.the.down.feed of the spindie. The Bracket F is fixed on
the top of the Tube C, and supports the end of the revolving milling spindle D. The
Spindle D is worked preferably in conical bearing the top Bearing being kept in
position by 2 nuts.

page_text: The Steadying Guide or Bracket E turns on a cone and is held in position by the
nut J thus enabling it to be placed in any position opposite the line of cutter.
Having now particularly described and ascertained the nature of my invention
and in what manner it is performed I declare that what I claim is :-
1st. A Milling Spindle revolving in a Tube with Bearings substantially in the
manner described.
2nd. A Steadying Guide or Bracket adjustable on the end of Tube and made to fix
in any position substantially as described.