NEW OR NEW OR IMPROVED MACHINERY TO BE EMPLOYED IN THE MANUFACTURE CF WATCHES AND CHRONOMETERS
Year: 1867

page_text: LETTERS PATENT to Joseph Boyes Fraser, of Kenilworth, in the, County
of Warwick, Gentleman, for the Invention of "NEW OR
NEW OR IMPROVED
MACHINERY TO BE EMPLOYED IN THE MANUFACTURE CF WATCHES AND
CHRONOMETERS."
Sealed the 1st December 1867, and dated the 11th July 1867.
OR IMPROVED MACHINERY TO BE EMPLOYED IN THE MANUFACTURE OF WATCHES AND
CHRONOMETERS
My Invention consists, firstly, of the arrangement or combination of parts
herein-after described of machinery for making the top and bottom plates of
watches and chronometers, that is to say, the plates in which the pivots or
axes of the wheels work; and, secondly, of the arrangement or combination
of parts herein-after described of machinery for depthing, marking, and
drilling the holes in the said top and bottom plates in which the pivots or
axes of the wheels work.
The machinery constituting the first part of my Invention for making
the top and bottom plates consists essentially of the following arrangement

page_text: of parts: The piece of metal from which the top or bottom plate is to be
made is held between two surfaces by which it is put into rapid rotation.
A double cutter, advancing against the edge of the rotating plate, cuts or
turns the faces of the corners of the plate, so as to bring them into two
parallel planes or to remove any want of flatness in the plate of metal at its
corners. The plate is then fixed in a chuck or holder by which it is held at
the corners which have been made true in the manner described, and one
face of the plate is turned flat. The central sinking is then turned in the
face of the plate and the chuck being thrown out of centre the other sinkings
are turned. The holder or chuck being reversed the other face of the plate
is turned flat and the required sinkings are made on that face. A cutting
tool advancing in a direction parallel or nearly parallel to the line in which
the plate is rotating, the said cutting tool cuts out a circular disc from the
plate, the said cut out disc constituting a top or bottom plate for a watch or
chronometer.
By the action of the machinery described the top or bottom plate is turned
flat, the sinkings are made. and the plate is cut out during the time that the
plate is supported in the machine without any flexure, so that the plate on
removal from the machine retains the flatness given to it by the turning
process.
The machinery constituting the second part of my Invention for depthing
or fixing the position of the holes to be drilled in the top and bottom plates
of watches and chronometers, and for marking and drilling the said holes,
consists essentially of the following parts:-The said machinery consists of a
circular bed plate or disc, having in its centre a circular hole somewhat larger
than the largest watch or chronometer top or bottom plate to be depthed,
marked, and drilled. On the said circular bed plate a series of holders slide;
each of the said holders consists of two arms situated one above the other for
holding the pivot or axis of one of the watch or chronometer wheels. A
sufficient number of the said holders to hold all the pivots or axes of the
wheels contained in the watch or chronometer of the kind to be manu-
factured are arranged so as to slide radially on the bed plate, and the series
of the said pivots and wheels is fixed in the manner herein-after described
in the said holders and brought into the positions they relatively occupy in the
finished watch or chronometer. There is thus put together a watch or
chronometer capable of performing all its motions, the pivots of the wheels
of which are held by the said holders instead of by the usual top and
bottom plates. The bottom ends of the pivots do not work in a hole in the
lower arm of the holder, but in a hole at the top of a small bar or rod passing

page_text: up through a hole in the bottom arm so that when the said holders have been
so arranged as to bring all the wheels into their proper relative positions, the
said wheels can be removed from the holders without changing the positions
of the said holders by withdrawing the said bars or rods and allowing the
wheels to fall from the machine. Besides the sliding holders described the
bed plate is provided with a series of double clamps, in which clamps the top
and bottom plates are fixed after the arranging of the holders has been
effected; pointed tools are passed up through the holes in the lower arms of
the holders and are made to mark the points on the bottom plate at which
the holes are to be drilled. Drills are next passed through the holes in the
lower arms of the holders and the holes in the bottom plate are drilled.
The bottom plate having been thus marked and drilled it is removed from
the machine and the top plate is marked and drilled in a similar manner.
SPECIFICATION
in pursuance of the conditions or
etters Patent med
by the said Joseph Boyes Fraser in the Great Seal Patent Office on
the 6th January 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
BOYES FRASER. of Kenilworth, in the County of Warwick, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of July. in the year of our Lord One
thousand eight hundred and sixty-seven. in the thirty-first year of Her reign.
did, for Herself. Her heirs and successors, give and grant unto me, the said
Joseph Boyes Fraser, Her special licence that I. the said Joseph Boyes
Fraser, my executors, administrators, and assigns, or such others as I, the said
Joseph Boyes Fraser, my executors. administrators. and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "NEW OR
IMPROVED MACHINERY TO BE EMPLOYED IN THE MANUFACTURE OF WATCHES AND
CHRONOMETERS," upon the condition (amongst others) that I, the said Joseph
Boyes Fraser, my executors or administrators, by an instrument in writing under
iny, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal

page_text: Patent Office within six calendar monihs next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said Joseph Boyes Fraser, do hereby
declare the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and asceriained in and by the
following statement thereof, that is to say:
My Invention consists, firstly, of the arrangement or combination of parts
herein-after described of machinery for making the top and bottom plates of
watches and chronometers, that is to say, the plates in which the pivots or
axes of the wheels work; and, secondly, of the arrangement or combination
of parts herein-after described of machinery for depthing, marking, and drilling
the holes in the said top and bottom plates in which the pivots or axes of the
wheels work.
The machinery constituting the first part of my Invention for making the
top and bottom plates consists essentially of the following arrangement of
parts. The piece of metal from which the top or bottom plate is to be made
is held between two surfaces. by which it is put into rapid rotation. A double
cutter advancing against the edge of the rotating plate cuts or turns the faces
of the corners of the plate so as to bring them into two parallel planes, or to
remove any want of flatness in the plate of metal at its corners; the plate is
then fixed in a chuck or holder. by which it is held at the corners, which have
been made true in the manner described, and one face of the plaie is turned
flat. The central sinking is then turned in the face of the plate, and the
chuck being thrown out of centre the other sinkings are turned. The holder
or chuck being reversed the other face of the plate is turned. flat, and the
required sinkings are made on that face. A cutting tool advancing in a
direction parallel or nearly parallel to the line in which the plate is rotating.
the said cutting tool cuts out a circular disc from the plate, the said cut out
disc constituting a top or bottom plate for a watch or chronometer. By the
action of the machinery described, the top or bottom plate is turned flat, the
sinkings are made, and the plate is cut out during the time that the plate is
supported in the machine without any flexure, so that the plate on removal
from the machine retains the flatness given to it by the turning process.
The machinery constituting the second part of my Invention for depthing
or fixing the position of the holes to be drilled in the top and bottom plates
of watches and chronometers, and for marking and drilling the said holes
consists essentially of the following parts:-The said machinery consists of a
circular bed plate or disc, having in its centre a circular hole somewhat larger
than the largest watch or chronometer top or bottom plate to be depthed,

page_text: A
marked, and drilled. On the said circular bed plate a series of holders slide.
Each of the said holders consists of two arms, situated one above the other for
holding the pivot or axis of one of the watch or chronometer wheels.
sufficient number of the said holders to hold all the pivots or axes of the
wheels contained in the watch or chronometer of the kind to be manufactured
are arranged so as to slide radially on the bed plate, and the series of the said
pivots and wheels is fixed in the manner herein-after described in the said
holders, and brought into the positions they respectively occupy in the finished
watch or chronometer. There is thus put together a watch or chronometer
capable of performing all its motions, the pivots of the wheels of which are
held by the said holders instead of by the usual top and bottom plates. The
bottom ends of the pivots do not work in a hole in the lower arm of the
holder, but in a hole or countersink at the top of a small bar or rod passing up
through a hole in the bottom arm, so that when the said holders have been so
arranged as to bring all the wheels into their proper relative positions, the said
wheels can be removed from the holders without changing the positions of the
said holders by withdrawing the said bars or rods, and allowing the wheels to
fall from the machine. Besides the sliding holders described the bed plate is
provided with a series of double clamps, in which clamps the top and bottom
plates are fixed after the arranging of the holders has been effected. Pointed
tools are passed up through the holes in the lower arms of the holders, and
are made to mark the points on the bottom plate at which the holes are to be
drilled. Drills are next passed through the holes in the lower arms of the
holders, and the holes in the bottom plate are drilled. The bottom plate
having been thus marked and drilled it is removed from the machine. and the
top plate is marked and drilled in a similar manner; or both plates may be
drilled at the same time.
Having explained the nature of my Invention. I will proceed to describe
with reference to the accompanying Drawings the manner in which the same
is to be performed.
Figure 1 represents in side elevation. Figure 2 in cross section. and Figure 3
in front elevation, the holder which I use for holding the blank or plate of
metal while the faces of its corners are cut or turned true: Figure 4 repre
sents opposite sides and edge view of the double cutter which I use for cutting
or turning the said faces of the corners. The plate or blank to be turned is
marked in Figures 1 and 2, and is indicated in dotted lines in Figure 3.
The holder consists of a plate b, having a tubular socket, which is screwed into
the rotating spindle of a lathe or other turning machine. Across the middle of
the said plate is a saddle piece d through which a fixing screw e passes. Upon

page_text: the said plate b is a shoulder e. against which one side of the plate a to be
turned bears. The plate a having been passed under the saddle piece 'd, and
one of its sides made to bear firmly against the shoulder e, the said plate is
fixed in the holder by driving home the screw e2. The said plate a does not
bear directly upon the plate of the holder, but upon the heads of three
screws . . . screwed into the said plate as represented. When the said
plate a is fixed in the holder its corners marked a project beyond the face of
the holder or plate b, sufficient space being left between the said corners and
the rim for the action of the cutter g (see Figure 2). Having fixed the
plate in the holder a rapid rotatory motion is communicated to the said
holder, and the double cuiter, Figure 4, is advanced against the edge of the
rotating plate ", as represented in Figure 2, and the faces of the corners a²
are simultaneously cut or turned by the said cutter so as to bring them into
two parallel planes, or remove any want of flatness in the plate at its corners;
Figure represents in plan and edge view the plate after its corners have
been turned flat in the manner described. In the said Figure 5 the plate is
marked a, and its flattened corners are marked a².
Figures 6, 7, 8, and 9, represent the machine which I prefer to employ to
carry the chuck or holder constructed according to my Invention for holding
the plate or blank. Figure 5, at its flattened corners while the faces of the
said plate are turned flat, the sinkings and holes made in the said plate, and
a disk cut from the said plate, Figures 6 and 7, representing the machine in
side elevation and end elevation respectively when the chuck or holder is
situated concentric to the driving axis of the machine; and Figures 8 and 9,
representing the same when the said chuck or holder has been thrown out of
centre for the purpose of turning therein the excentric sinkings and holes:
Figures 10 and 10, are front elevations of the chuck or holder separately;
Figure 11 is a side elevation, and Figure 12, a cross section of the same:
Figure 13 is a portion of the chuck or holder.
The same letters of reference
indicate the same parts in Figures 6, 7, 8, 9, 10, 10, 11, 12, and 13.
is the axis or spindle of the machine turning in the case or cylindrical
bearing, and provided with a pulley e, by which a rapid rotatory motion may
be communicated to it; the said axis a carries a circular bed plate d, capable
of rising and falling upon the fixed dovetail e. The said rising and falling of
the bed is effected by the cam or excentric f, worked by the handle g; the
said excentric motion of the bed d is of the ordinary kind, 1 therefore do not
consider a more detailed description necessary. In the face of the bed d is a
circular depression, into which my improved chuck or holder is dropped and
fixed; the said chuck or holder consists of two metal rings h, i, the opening

page_text: in the said rings being greater than the largest watch or chronometer plate to
be made. In the front ring four angular openings are made, and in the
back ring an annular recess is formed, the cut away parts in the front
ringh passing into the recess in the back ring i. The holder or chuck h, i,
is fixed in the bed d by means of the clainps I, 1. When it is wished to fix a
plate or blank (Figure 5) in the holder or chuck h, i, its corners a² are passed
through the angular openings in the front ring into the recess in the back
ring, as represented in Figure 10. By then turning the plate so as to remove
its corners from opposite the recesses, the said plate is secured between the
two parts of the holder, one corner of the plate being made to bear against
one or other of the stops m in the recess in the back ring, as represented
in Figure 13, which represents a front elevation of the back ring i separated
from the front ring h. The plate or blank being in the position represented
in Figures 10 and 13, by driving home the screws n. n. the two rings h, i, are
pressed together, and the plate is thereby securely held between them, and is
incapable of motion in the holder. The shape of the annular recess in the
back ring i. and the manner in which the plate to be turned is fixed between
the two rings will be readily understood by an examination of Figures 10, 12,
and 13. A rapid rotatory motion being given to the machine by a band
passing over the pulley e one face of the plate is turned flat. The outer con-
centric rim and the central sinking p. and such other sinkings or holes as are
required are then turned in the face of the plate. I prefer to effect these
turning operations by means of the turning machine herein-after described.
The clamps being turned from off the edge of the chuck or holder, the said
holder is removed from the bed d, reversed and replaced in the said bed d;
the other face of the plate is now turned flat, and the required concentric
sinkings made in it. By then moving the handle g the bed d carrying the
chuck or holder is thrown out of centre as illustrated in Figures 8 and 9,
when the excentric sinkings or holes q. q. and such others as may be required,
are turned in the said face. After having thus turned both faces of the plate and
made the required rim sinkings and holes therein. a cutting tool is advanced
and made to cut out a circular disc from the plate. the said cut out disk con-
stituting a top or bottom plate for a watch or, chronometer. By holding the
blank or plate from which the watch or chronometer plate is to be made by
its flattened corners in the manner described and represented during the
time that the turning and cutting out operations are being performed upon
it the said plate is supported without any flexure, and on the removal of the
finished plate from the machine the said plate retains the flatness given to it
by the turning process.

page_text: ends of the turning
Figure 14 represents in plan, and Figure 15 in end elevation (partly in
section), the machine which I use for turning the sinkings and holes in the
plate or blank while it is held in the machine last described, as well as for
cutting out the disk from the said plate or blank. Figures 16, 17, 18, and 19
are separate parts of the same. The same letters of reference refer to the same
paris in Figures 14, 15, 16, 17, 18, and 19. The said machine is supported
on the bed of a lathe and is capable of sliding thereon. The said machine
consists essentially of a barrel a capable of rotating in the bearings b, b, in
which barrel the turning tools c, c, are supported; the
tools pass through both ends of the said barrel, and are capable of a
limited sliding motion in the said barrel. On the end of the barrel is a worm
wheel, with which a worm e on the horizontal shaft gears. On the
end of the axis f is a hand pulley g, by turning which a rotatory motion may
be transmitted through the worm e and worm wheel d to the said barrel a,
and any one of the series of turning tools c carried by the said barrel may be
brought, in the manner hercin-after described, opposite that part of the plate
or blank in which a sinking is required to be turned, or any of the operations
herein-before explained are required to be performed upon the plate. By means
of a second and smaller hand pulley h on the end of the axis i, over which a
band from the pulley g is passed, a very slow motion may be transmitted to
the barrel a so as to effect a fine adjustment of the said barrel. In a line
with the axis of the barrel a and turning freely in the end of the said barrel
is a screw k, on which a screw box works (shown separately in Figure 16).
On the said screw box is an arm m; the screw box 1 may be turned in the
required direction by means of the forked handle n (shown separately in
Figure 17). In the inner side of each of the turning tools c a cross slot c² is
made as best seen in the separate view of one of the said turning tools
Figure 19. By means of the handle n the arm m of the screw box 1 may be
made to engage with the slot ca in any one of the turning tools c it may be
wished to use as represented in Figure 15, and thus temporarily connect the
said turning tool with the screw box 1; when the arm m has been so engaged
with the turning tool the screw k is turned by its handle 2, the screw box and
arm 1, m, are thereby made to advance upon the said screw in a line with
the axis of the barrel carrying with them the turning tool. The advance
motion of the screw box is limited by the fixed collar p (see Figure 14) on
the bottom of the screw h, and its retiring motion is limited by the loose collar q
on the said screw. On an axis r situated parallel with the barrel a is a
lever s, the arms of which are at right angles to one another; the said lever
is capable of sliding on the axis r, so as to bring its hooked upper end s² at

page_text: pleasure opposite one or other of the circular rows of pins or studs represented
on the cylindrical surface of the barrel a. The said hooked end of the lever
is pressed against the barrel a by means of a spring under its lower arin. In
using the machine the hand wheel g is turned so as to bring one of the pins
(say, of the first circular row) on the barrel against the under side of the
hooked ends of the lever s; when in this position the turning tool is
opposite the centre of the sinking or hole to be turned or cut. By now
turning the barrel a until the pin next above that engaged under the hook s
is brought to bear against the under side of the said hook, the turning tool is
removed the required distance from the central position to turn a sinking or
hole of the required diameter; the turning tool is then advanced against the
rotating plate when the required sinking or hole is turned in it. The distances
between the several pins of any particular circular row are arranged to suit
the diameters of the required sinkings or holes in the plates of a particular
sized watch, the distances between the pins in the different rows being suited
to the sizes of the sinkings and holes required in different watch plates.
Figures 20, 21, and 22 represent my machine for depthing or fixing the
positions of the holes to be drilled in the top and bottom plates of watches
and chronometers, and for marking and drilling the said holes. Figure 20
representing the machine in plan holding in their proper places respectively
the several parts of a watch of the kind similar to that of which the top and
bottom plates are to be depthed and drilled. Figure 21 representing the
principal parts of the machine in plan holding a top plate in proper position
to be depthed and drilled, and Figure 22 representing a side elevation of the
machine holding different parts of a watch. Figures 24, 25, 26, 27, 28, 29,
and 30 are parts of the same as herein-after explained. The same letters and
figures of reference are used to indicate the same parts in Figures 20 to 30
both inclusive.
a is a circular bed plate having in its centre a circular hole larger than
the largest plate to be operated upon; e, c. are a series of holders capable of
sliding radially on the bed plate a. One of these holders is represented
separately in side elevation in Figure 23. in vertical section in Figure 24, and
in horizontal section in Figure 25 besides these sliding holders there is a
fixed one d. Each of the holders c consists of two arms e, f, capable of
turning upon the rod and adjusted by the screws h, h; the rod g is fixed
upon the dovetail slide i, and the position of the slide i upon the bed plate a
is determined by the screw coming against the stop 1; the said stop I works
in a slot in the slide i. The dovetail slides i are fixed upon the bed plate a

page_text: by means of the sector plates m, the dovetail bearing on one side against a
fixed incline on the bed plate a. and on the other side against an incline on
the sector plate m. By loosening the screws a the plates m may be drawn
back and the dovetail slides i be liberated from against the fixed inclines on the
bed plate a. The lower arm of the holders carries a centre pin p. between
which and the end of the arm e the pivot or axis of one of the wheels of the
watch may be held. By means of the screw q the end of the spring may he
pressed against the centre pin p and the said pin be thereby fixed. The positions
of the several wheels when supported by the different holders will be under-
stood by an examination of Figures 20 and 22. Besides carrying the centre
pin p some of the holders also carry parts requisite to form fixed supports for
portions of the watch and thereby allow the watch to be put in actual motion
in the machine. For example one of the holders carries an arms to which
the balance spring is attached, and another carries arms f, t, between which the
lever of the watch vibrates. I prefer to make the holder carrying the arms s
and of three separate holders connected together as represented and carried
by one dovetail slide; the said three holders supporting the balance wheel
and all the other parts constituting the escapement of the watch. The slight
clifference in the other holders will be readily understood by an examination
of the Drawings. By fixing the different pivots and wheels for the watch in
the holders of the machine, and placing the said hoiders in the bed a of the
machine, and adjusting their positions and fixing them in the manner described.
all the parts of a watch may be brought together and the watch set to work
in the machine; by the working of the watch it is known that the several
holders are in their proper relative positions. The position or depthing of the
holes for the pivots in the top and bottom plates having been thus effected
the pivots and wheels are removed from the holders without changing the
positions of the said holders; this is effected by loosening the screw q. relaxing
the springs, and liberating the centre pins p, which being withdrawn the pivots
and wheels fall from the holders. The top and bottom plates to be drilled are
now fixed in the machine being held by the three clamps , n. (see Figure 21):
these clamps are removed in Figure 20 in order to make the other parts clearer.
One of these clamps is shown separately in side elevation in Figure 26, end eleva-
tion in Figure 27, and in elevation of the interior in Figure 28. Each clamp
consists of a triple-bladed forceps, the lower one being fixed and the middle
and upper ones 1, 2, being moveable. The moveable blades are adjusted by the
screws y, z, and fixed by the side clamping screws 1. One of the watch plates
is fixed between the blades v, w, and the other plate between the blades w, x.

page_text: The watch plates being firmly and truly fixed in the machine a pointed marker,
Figure 29, is passed up through the lower arm of each holder c and the
holder d, the said pointed marker taking the place of the centre pin p: by
means of the said marker a depression or hole is made on the lower plate in
which the point of the drill which is afterwards passed up through the holder
enters. The positions of the several holes having been marked by the pointer
on the watch plate the bed a is turned from a horizontal into a vertical position.
the said bed being supported in a cylindrical frame 3, which is capable of
turning on its axis 2. The position of the cylindrical frame 3 either horizontally
or vertically, or inclined may be fixed by means of the lever 4 engaging in
the notches in the plate 5 on the said axis 2. The supports 6 of the frame 3
are capable of a transverse motion in the base plate by means of the dovetail
slide 8, and the upper plate or bed 10 is capable of a longitudinal motion in a
dovetail slide in the base plate 7: the dovetail slide 8 may have a rack, in
which a pinion on the axis of the wheel it engages; by turning the wheel 11
by the handle 12 the dovetail slide 8 may be advanced backwards and forwards
in the upper plate 10. The drilling apparatus consists of a rod 13 urged for-
ward in the case 14 by means of a coiled spring. The drill 15 has a hole in
it, through which a cross pin 16 passes; by means of the drivers 17 acting
on the same side of the pin 16 (see the front view of the drill pulley, Figure 30)
they communicate motion from the pulley 18 to the drill. The pulley 18 is
driven by the wheel 19, winch 20, and band 21. By bringing each of the
holders c and d in turn opposite the drill 15, pulling back the rod 13 and
passing the drill through the hole in the lower arm of the holder its point is
made to engage in the depression made by the pointer herein-before explained.
By loosing the rod 13 the drill is pressed with sufficient force against the
plate by means of the coiled spring in the case 14, and by turning the winch 15
the drilling is effected, the drill passing first through the bottom or pillar plate
and then through the top plate supported by the clamps u, u. The drivers 17
act upon the pin 16 whichever way the pulley 18 is made to rotate. The
advance motion of the drill is limited by the heads of the drivers 17. Although
I prefer. as described, to effect the drilling horizontally, yet by simple
changes in the apparatus the drilling, if preferred. may be effected vertically.
Instead of passing the drill through the holders the said holders may be
removed after the plates have been marked. and the drilling effected without
the holders.
Having now described the nature of my Invention, and the manner in
which the same is to be performed, I wish it to be understood that I do not
limit myself to the precise details herein-before described and illustrated, as the

page_text: same may be varied without departing from the nature of my Invention; but
I claim as my Invention with respect to the machinery for making top and
bottom plates of watches and chronometers.--
Firstly, the new or improved holder herein-before described and illustrated
in Figures 1. 2. and 3 of the accompanying Drawings for holding the blank
or plate while the faces of its corners are turned flat or made parallel.
Secondly, the double cutter herein-before described and illustrated in
Figures 2 and 4 of the accompanying Drawings for effecting the simultaneous
turning of the two faces of the corners of the blank or plate.
Thirdly, the construction of the holder or chuck, substantially as herein-
before described and illustrated in Figures 6. 7. 8. 9. 10. 10, 11, 12, and 13
of the accompanying Drawings for holding the plate or blank by its flattened
corners while its faces are turned flat, and the sinkings and holes made in it,
and a disk cut from the said plate.
Fourthly, the construction and arrangement, or combination of the parts of
the machine herein-before described and illustrated in Figures 14. 15, 16, 17,
18, and 19 of the accompanying Drawings for supporting, adjusting, and
advancing the tools for turning, sinking, and cutting out the plate while it is
held by its flattened corners.
I claim with respect to the machinery for depthing the holes to be drilled
in the top and bottom plates of watches and chronometers, and for marking
and drilling the said holes.
Fifthly, the construction and arrangement, or combination of the holders
herein-before described and illustrated in Figures 20. 21. 22. 23. 24, and 25
of the accompanying Drawings for supporting the several parts of a watch or
chronometer in the relative positions which they occupy in the finished watch
or chronometer, and thereby effecting the depthing or fixing the positions of
the holes to be drilled in the said top and bottom plates.
Sixthly, the construction and arrangement of parts herein-before described
and illustrated in Figures 20. 21. 22, 23, 24, and 25 of the accompanying
Drawings for adjusting the positions of the said holders. and for fixing them
in their adjusted positions, and for permitting of the passage of a marker and
drill up through the said holders for marking and drilling the holes in the said
top and bottom plates.
Seventhly, the construction and arrangement of the paris of clamps, and
their combination with the supporting holders for holding or supporting the
top and bottom plates while they are marked and drilled, herein-before
described and illustrated in Figures 21, 26, 27, and 28 of the accompanying
Drawings.

page_text: Lastly, combining the machine herein-before described for depthing the
holes in the top and bottom plates with a drilling machine constructed in the
manner herein-before described and illustrated in Figures 20, 22, and 30 of
the accompanying Drawings.
In witness whereof, I, the said Joseph Boyes Fraser, have hereunto set
my hand and seal, this Second day of January, in the year of our
Lord One thousand eight hundred and sixty-eight.
Witness,
GEORGE SHAW.
JOSEPH BOYES FRASER. (L.S.)