Improvements in Metal Milling and like Machines:
Year: 1891

page_text: Date of Application, 5th Nov., 1891-Accepted, 5th Dec., 1892
COMPLETE SPECIFICATION.
Improvements in Metal Milling and like Machines:
I, CHARLES SCOTT MOSELEY, a citizen of the United States, and residing at
Dubuque, in the County of Dubuque, and State of Iowa, one of the United States
of America Machinist, do hereby declare the nature of my invention, and in what
manner the same is to be performed to be particularly described and ascertained'
in and by the following statement:-
The present invention relates to improvement in milling machines for finishing
metal castings, whereby, various castings may be entirely finished without being
removed from the machine. The particular castings on which I wish to work, are:
ordinary steam valves, but other castings may be finished.
In order that the improved machine may be better understood, attention is called
to the accompanying drawing, wherein :
Fig. 1, is an elevation of the machine with the cutters and cutter spindles, radial
cutter holders, radial cutters, and cutter actuating mechanism removed;
Fig. 2, a perspective view of the disk from one side, showing one set of holders,
and the indices in position ;
Fig. 3, a sectional view through the drums and disk ;
Fig. 4, a side elevation of the disk with the actuating mechanism attached'
thereto;
Fig. 5, a sectional view of the cam-pawl wheel for actuating the disk ;
Fig. 6, a sectional view of the disk in detail;
Fig. 7, an enlarged perspective view of one end of the drums, showing. the
mechanism in moving the horizontal cutters;
Fig. 8, an elevation of another form of holder;
Fig. 9, a plan of the same, showing the valve in position;
Fig. 10, a sectional view taken on the lines a and b, of Fig. 8;
Fig. 11, a sectional view taken on the lines c and d, of Fig. 8;
C
Fig. 12, a détached sectional view of a separate slide for the holder;
Fig. 13, a sectional view taken on the line of Fig. 12;
Fig. 14, a perspective view illustrating the auxiliary radial cutter holder, and
showing particularly the mechanism for controlling the radial spindle and its
carrier;
Figs. 15, 16, 17, are sectional elevation and plan views of one of the radial
spindles and the carriers ;
Fig. 18, a perspective view of one squaring head, having one cutter and means
for operating said cutter removed; .
Figs. 19, 20, 21, 22, 23, 24, 25, 26, 27, and 28, are views of details of the
squaring head;
Fig. 29, a sectional view of a squaring head showing one cutter and operating
mechanism removed;
Fig. 29ª, an elevation of the auxiliary clamping jaws, for holding the disk in
position ;
Fig. 30, a side elevation of the same, and
Fig. 31, a front perspective view of the machine.
Corresponding parts are designated by the same letters of reference. 1, is the
base which is supported by standards 2, 2, and is made of iron of a general
rectangular form. To the top of this base, are bolted the braces 3, 3, of the
auxiliary supports 4, which are made of a horse shoe form. 5, 5, are tracks on the
upper edges of the auxiliary supports, and are parallel with each other. 6, 6, are
metallic drums, held on the tracks by bolts 7, 7. These drums are in the same

page_text: plane with each other. 8, 8, are T-shape grooves in the periphery of each drum,
and having openings 9, 9. 10, 10, are rectangular grooves parallel with each other,
cut in each drum.
The drum 6, is provided with double the number of grooves, of the drum 6', in
order that the cutter spindles may be placed directly opposite each other, or
alternately, for the purpose to be described hereafter.
The carriers for the cutter spindles, are provided each with a tenon, corre-
sponding with the respective grooves in the drum, and are held rigidly in position
by means of bolts 11, having heads sliding in grooves 8, 8, and entering the slot 13,
in each carrier. These bolts are placed in the T-shaped grooves through enlarged
onenings 9.
14, are metallic sleeves within each drum, having bearings 1. Each sleeve is
provided with a flange 16, and engaging therewith is a screw 17, which may be
turned so that the sleeves 14, may be moved inwardly to take up wear. A screw 18,
passes through the flange 16, and bears against the rear head of each drum, so that
the sleeve may be retracted.
20, is a reciprocating shaft passing through the drums, and bears in the bearing
pieces 19, and 19. 21, is another shaft mounted in bearings 22, and provided on
one end with a band wheel, to which power is applied and on the other with a
pinion 23, engaging with the gear wheel 24, which revolves with the shaft 24¹.
Secured to the gear 24, is a cam 24. 25, is a lever bearing on this cam. 27, is a
lever mounted on a rod 26, and connecting with the cam lever 25, by means of a
rod 28. The lever 27, connects with the shaft 20. This part of the improved
machine operates as follows:
Power is applied to the pulley on the shaft 21, which drives the pinion 23, and
gear wheel 21, and which rotates the cam 24. The cam moves the lower end of
the lever 25, back and forth, which also moves the reciprocating shaft, by means
of the lever 27. The shaft is returned to the original position by means of a weight
or spring. 32, are sleeves placed upon the reciprocating shaft, and having parallel
grooves corresponding with those on the drums. 33, are inclined pieces, secured
within these grooves. 37, is an angle lever, bearing upon each in clined piece.
These levers are mounted on a support 38, by means of a brace 381, engaging in the
T-shape grooves before described. The support 38, is provided with radial
recesses and secured within such recesses, is a bearing piece 39, for the angle
lever 37.
40, is a leaf spring which holds each angle lever against each inclined piece 33.
42, is an adjusting screw in the upper end of each lever, and bearing against the
outer end of the cutter spindles. These cutter spindles are mounted in suitable
carriers attached to the face of each drum, and are rotated by a belt or other
means. Each cutter spindle is provided with a set of cutters and by means of the
mechanism described, the cutters will advance and withdraw when the reciprocating
shaft is moved back and forwards, by reason of the horizontal arm on each angle
lever 37, being elevated by the inclined pieces 33, which causes the vertical arms
of the lever 37, to advance the cutter spindles. By means of the screw 42, the
movement of the cutters can be adjusted.
The disk wheel shown in Fig. 2, will now be described:
It consists of a hollow hub having cone shape ends and a body 53. 55, are pieces
for strengthening the disk. 56, are pins corresponding with the grooves on the
drum 6'. The articles holders are provided with flanges on their outer faces,
corresponding with the outer shape of the disk and are held against the rim 54, by
means of a clamp piece 59.
60, 60, are indices secured beneath the piece 59, by bolts 61. These indices are
to be exactly equidistant from each other. 66, is a wheel having teeth, corre-
sponding with the indices 60. 67, is a recess in the head of one drum, and 68, is a
suitable piece within the same. 69, is a pawl pivoted to this piece 68, adapted to
engage with the indices.
70, is an extension or stud on the other drum. 71, is a pawl pivoted thereto.

page_text: This pawl engages with the pins 56. As the disk rotates, the pawl 71, is succes-
sively engaged with the different pins, and thereby prevents the disk from being
reversed.
As one of the indices passes over the pawl 69, the latter will be elevated, as will
be hereafter mentioned, and will engage with the face of the next index. This
prevents the disk from being moved forward.
An auxiliary shaft 72 passes through the drum 6' parallel with the reciprocating
shaft 20 and has keyed on to its inner end a ribbed wheel 73. This shaft is driven
by pulley and belt as shown. A clutch or spring catch (not shown in drawings)..
which may be of any known form and used in the usual manner is employed to.
check the shaft 72 to cause it to take intermittent revolutions and so impart the
same action to the ribbed wheel 73.
74, is a cam secured to the wheel 73, by means of a screw 75. 76, is a bearing
piece in the pawl 69, which bears on the wheel 73. 77, are clamping jaws for the
bearing pieces 76. 69¹ is a spring for forcing said pawl 69, in engagement with the
indices. It will be seen as the cam wheel 74 is revolved, the pawl 69 will be first
depressed by the cam, and will disengage from the indices, and then as the cam
continues to revolve, the pawl 69, will be forced up the spring 691. 78, is a pawl
pivoted to the wheel 73, provided with a pin 79, engaging with the teeth on the
ratchet wheel 66. The operation of the mechanism for advancing the disk, is
as follows:
The shaft 72, makes a whole revolution and is stopped by the clutch. The rib
wheel at first causes the pawl 78, to advance and causes the ratchet wheel to move
forward one tooth, and the disk is moved. The pawl 78, is then retracted and
engaged with the next tooth. As the disk advances, the pawl 71 drops behind
one of the pins 56, thus preventing the disk from reversing. As the ribbed
wheel 73, revolves, its cam portion 74, will cause the pawl 69, to disengage from
the index, allowing the disk to be advanced, and then the spring 69', will cause
the pawl 69, to engage with the next succeeding index, and prevents the disk from
being advanced.
This
I make use of a clamp to grasp the rim 54, as shown in Figs. 30 and 31.
consists of clamping pieces 79 and 81, pivoted together, the former mounted in a
bearing 80. 80 and 82 are jaws. These jaws engage with the rim of the disk.
83 is a cam, on the shaft 84', by which the jaws will be made to grasp
the rim.
In some work it is only possible to operate on one face at one time. Each holder
has a base held in position by a clamping piece 59. For other work it is possible
to operate on two or more faces at the same time, and for this work the holder is
shown in Figs. 8, 9, 10, 11, 12, 13, may be used. This holder has a flange .89,
clamped to the disk, and a recess 90, for the reception of the article. The upper
part of the holder is recessed for the slides 91, which are retained by cap
pieces 92.
93, is a pin in each slide, and engaging therewith is a lever 94. '95, is an arm
connecting the lever 94, with the cam shaft 96. 97, is a leaf spring for the
connecting arms. This lever is mounted on an eccentric pivot 941, which is turned
to change the fulcrum of the lever to adjust its movement. The valve 94', is laid
in the recess 90, and the shaft 96 is turned around so as to move the lever 94,
causing the slides 91, to approach the valve to clasp the same.
The squaring cutter will now be described:
Mounted on the cutter spindle is a casing 98, provided with extensions 99.
Mounted on the shaft 46, is a cog-wheel 100, which engages with bevelled
pinions 100%. Each bevelled pinion is splined to a hollow shaft 101, mounted in
bushings 104, so that the shaft may be moved lengthwise. Each shaft is provided
with an integral face-wheel, having two pins 103. Secured to the pins 103, are
cutter wheels 105, held in place by a screw bolt 106, having a nut 107. Each
hollow shaft passes through angular pieces 108..
.
...
109, are extensions of the piece 108, and engage with the openings 110, through

page_text: which extend adjusting screws 111. The pieces 108, are kept normally retracted by
springs in recesses 112.
These cutters operate as follows:
The shaft 46, rotates the cog-wheel 100, which turns the bevelled pinions 100¹,
and the hollow shafte. which operate the cutter. The cutters engage with the
work and perform the work of squaring two faces at one-operation. The casing, is
held on the cutter spindles by sleeves 113, bearing against a shoulder 114.
For some kinds of work three faces can be operated upon. In this variety of
work, I make use of an auxiliary attachment shown in the drawing. This
attachment will now be described:
It consists of a circular piece 115, fastened to the extension piece upon the
drum 6, by a clamping piece 116, by which the base 117 is forced against an.
integral rim 114, on the drum 61. These clamping, pieces 116, are further held
by projections fitting in the grooves 119, cut in the head of the drum 6'.
120, is a track. 121, are sliding,pieces. 120', is an extension.
The spindle carriers consist of a body 122, and two bearings 123. Each carrier
is bolted to the circular piece 115, against the shoulder 120'. Adjusting screws
pass through ears 124, whereby the carriers may be adjusted..
125, is a cutter spindle, carrying a cutter. 126, are band wheels. At the back.
of each carrier is a groove 127, in which is a rod 128, having, a pin 129.
130, is a connecting piece on the rod 128, and connected with a collar 131,
whereby it may be freely rotated.. 132 is a sleeve. for attaching, the piece-.130, to
the rod 128. 133, is a coiled spring for keeping the rod 128, in an outward,
position. 134, are inclines on the piece 121, with which the pins 129, engage..
When the sliding pieces 121 advance, the inclines 134, force the pins 129, inwardly,
so as to move the cutters toward-the work.
י
Power is applied to the driving shafts, and to the spindle shafts. The casting.
is placed in a holder upon the disk, and is brought in line with the, first cutters,
which operate upon it. While being thus operated upon, a second one is placed in.
the succeeding holder; the disk is advanced, and the first casting is brought to the
second cutters, and the second casting is brought to the first. While the cutters
are working upon these two, a third casting is placed in the succeeding holder; the-
disk is moved to the third cutters, and the second to the second cutters, and the
third to the first cutters: The work thus progresses until the first casting is entirely
finished.
It will thus be seen that during each pause of the disk, one finished casting, is
turned out. With some articles it becomes necessary to pass them twice around:
the disk, since they cannot be held so that two ends can be operated at, the-same
time.
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 as follows:-
First: The improved machine for finishing metal goods, consisting of a revolving
disk for carrying the articles to be finished, as herein described.
Second: The improved cutter holders, consisting of a spindle, mounted adjacent
to the work to be finished, as herein described.
Third: The improved article holders, herein described.
Fourth: The improved cutters mounted parallel with each other and means for
adjusting. the same, as herein described:
Dated this 5th dow of Narambar 1901
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, London, Agent for Applicant.