IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF SCREWS AND SCREW NAILS
Year: 1874

page_text: LETTERS PATENT to Edward Nugent, of Brooklyn, in the County of
Kings, in the State of New York, and John Fanning, of Brooklyn
aforesaid, in the United States of America, for the Invention of
"IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF SCREWS AND
SCREW NAILS."
Sealed the 10th July 1874, and dated the 14th January 1874.
COMPLETE SPECIFICATION filed by the said Edward Nugent and John
Fanning at the Office of the Commissioners of Patents, with their
Petition and Declaration, on the .14th January 1874, pursuant to
the 9th Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
NUGENT, of Brooklyn, in the County of Kings, in the State of New
York, and JOHN FANNING, of Brooklyn aforesaid, in the United States,
of America, send greeting..

page_text: the block L, the other end being supported in the main frame at P.
The bearings are so constructed that one end of the shaft can oscillate.
The cam K is fast on the end of the shaft N. Q is a disc on the shaft N,
having slots across its periphery, into which the blanks are fed from a
hopper (not shown in the Drawings). The gear wheel G on the main
shaft gives motion to an intermittent gear wheel s¹, which in turn gives
motion to a gear wheel T on a shaft U. A bevelled gear wheel V on the
shaft U gears into a bevel gear W, giving motion to a countershaft X,
carrying a gear wheel Y that gears into a gear wheel Z, thus communi-
cating motion to the shaft T on which the saw d is fast. A spindle f
passing through the main shaft A is connected with the sliding bar F
by means of an arm U¹, and takes longitudinal motion from said bar for
the purpose of operating the jaws h, h, pivoted in the end of the shaft A
for the purpose of grasping the blank at the proper time and revolving
it against the shaving tool or cutter k. The saw shaft has its bearings in
a tilting frame j, and an arm m connects the frame j with a projection >¹
on the shaft n. A cam acts against the lever n¹ projecting from the
shaft n, communicating a rocking motion to the cutter %.
As the disc Q revolves it carries the blank forward opposite the
jaws h, h, (a stationary rest q¹ preventing the blanks from dropping out)
when the shaft A. is moved longitudinally and the jaws operated to grasp
the blank and revolve it against the action of the cutter or shaving
tool k, which is moved forward and shaves the blank. The motion of
the disc Q carries the blank forward after it has been shaved and the
jaws opened. The shaft A. is withdrawn to the proper position to allow
the blank to be moved forward for nicking. When the blank has passed
forward to the position for nicking, the cam Q¹ on the side of the
sliding bar F comes in contact with the block L, and presses the end of
the shaft N down, carrying with it the disc Q, which clasps the blank
firmly upon the rest t, holding it while the same motion that throws the
cutter forward to do the shaving of a blank tilts the frame j forward,
and presses the saw against the head of the blank and cuts the nick,
after which operation the disc rises and releases the blank. The forward
motion of the disc carries the blank beyond the guard and it falls into a
receptacle below, when other blanks are passed forward, and the same
operations are repeated as before.
The object of the second part of our Invention is to furnish a
LLS.
on
como hlanks which shall be capable of

page_text: accomplishing much more work in a given time than any hitherto
made, and to be much more simple and less liable to get out of order.
Our machine is so constructed that it will successfully cut and finish
two or more screws at the same time.
Our Invention will be readily understood by reference to the accom-
panying Drawings which form a part of this Specification.
Figure 1 is a plan or top view of our machine; Figure 2* is a side
view; and Figures 3ª and 4ª are cross sectional views of our machine.
In these Figures A is the main or driving shaft. B is a pinion, which
operates a spur wheel C, thereby communicating motion to the cam D.
E is a sliding bar, which takes its motion from the cam D by means of a
projection F entering the cam slot. The sliding bar E has a pro-
jection G that works in a cam H, giving to said cam H intermittent
rotary motion. The sliding bar. E has cam-shaped sides J, J, which
pass through rectangular grooves in the sides of the frame K, K. The
cam H has its centre bearings in the frame K, K; consequently the
cam H is moved sidewise with the frame. I is a disc attached to the
end of the cam H, and moved with it. L is a hopper into which the
blanks are put; this hopper is deeper in its centre than at its sides, so
that the blanks have a tendency to fall toward the centre. There is a
slot M through the bottom of the hopper, through which an oscillating
receiver N is made to move, and by its motion catch the blanks as they
fall in position and pass them forward to the race O. The heads of the
blanks being always the largest and heaviest naturally fall to the centre
of the hopper, and the slot M extending radially from the centre toward
the side of the race O, the blanks are always caught with their points or
small ends downward, keeping the race O filled with blanks, which
gravitate toward the disc I, which is provided with half-round receiving
slots P, into which the screw blanks falls as the slots are by the rotary
motion of the disc I alternately brought under the discharge end of the a
race O. The race ☐ is connected or hung by an arm q having a fork
that embraces a pin on one of the side frames in such a manner that it
moves with the side motion of the disc. A guard N¹ is attached to the
lower end of the race O, and rests against the side of the disc I, to hold
the blanks in position while they are passed to the cutter as the disc I.3
rotates, carrying the blanks forward opposite a stationary rest Q. At

page_text: this junction the inclines J, J, on the sliding bar E presses the
frame K, K, forward, causing the disc I to move forward the stationary
rest Q and grasp the blank firmly against the rest. The same motion
carries a steady pin R forward against the side of the disc I, holding the
disc firmly in position while the thread is being cut on the blank by
cutters X, X, made fast on the shafts W, W. A cam S on the shaft D¹
acts against a transverse sliding bar T, forcing it against levers V, V,
which are fast to and projecting from the shafts W, W, to which is given
a rocking motion to force the point of the cutters X, X, against the
blank. A gear wheel Z on the main shaft gives motion to a gear
wheel Y, on the side of which is a cam Z¹, which gives longitudinal
motion to the shafts W, W, to which the cutters are fastened, one of the
shafts being acted on and transmits motion to the other by the arms x, x.
A gear wheel d on the main shaft gears into gear wheels on the screw-
drivers b, b, causing the screwdrivers to revolve. An arm c¹ attached
to the bar E extends to and enters grooves around the ends of the screw-
drivers, causing them to move longitudinally with the bar E. The
longitudinal motion given to the screwdriver is to force their points
into the nick in the heads of the blanks. The blanks are revolved by
the screwdrivers against the action of the cutters X, X.
The longi-
tudinal motion of the shafts W, W, is to traverse the cutters along the
blanks, and give the proper size and pitch to the screw thread.
As the disc I revolves the blanks drop from the race O into the
slots P, and are carried forward opposite the cutters X, X. The sliding
bar E now moves forward, bringing the steady pin in place to hold the
disc I from revolving, and the inclines J, J, force the frame K, K,
forward, carrying the disc I sidewise toward the cutters ✗, X, and
pressing the blanks against the stationary rest Q. The continued
forward motion of the bar E moves the screwdrivers so far longi-
tudinally as to force their points into the nicks in the heads of the
blanks, causing the blanks to revolve against the action of the
cutters X, X. The cutter points are forced against the blanks by means
of the sliding bar T acting against the levers V, V, projecting from the
shafts W, W, giving to said shafts a rocking motion. At this juncture
the cam on the side of the gear wheel Y acts against the ends of the
shafts W, W, causing them to move longitudinally, thus causing the
cutters X, X, to traverse the length of the screw blank four times, they
being each time forced back by a coiled spring.

page_text: wywww y
Formers U, U, are attached to the ends of the sliding bar T, which
act against set screws passing through the levers V, V, and cause the
cutters X, X, to move farther forward as they approach the end of
the blank, by which means a gimlet point is given to the screw.
When the screw is finished the continued motion of the machine 5
withdraws the disc I and releases the screw, which is dropped into a
receptacle below.
Having thus described our Invention, with what we consider the best
means of carrying the same into effect, what we claim as new and
desire to secure by Letters Patent in the first part thereof, Figures 1, 2, 10
3, and 4, is,
First. The combination of the oscillating frame L, sliding bar F,
shaft N, carrier disc Q, guide q¹, and stationary rest t, operating sub-
stantially as described.
Second. The intermittent rotary oscillating disc Q and guide q, in 15
combination with the rotary shaft A carrying the jaws h, h, operated by
the sliding spindle f, and the cutter k operating to shave the head of the
blank, substantially as and for the purpose set forth.
Third. The combination of the oscillating frame L, sliding bar F,
shaft N, disc Q, guide q¹, stationary rest t, with a nicking saw, sub- 20
stantially as and for the purpose set forth.
Fourth. The intermittently rotary oscillating disc Q and guide q¹, in
combination with the nicking saw d, shaving cutter k, and a chuck for
revolving the blank, substantially as and for the purpose set forth.
Fifth. The frame j carrying the saw shaft T¹, and oscillated on the 25
revolving shaft X by means of the connecting rod m³, arm 7 on the
shaft n, arm n³, and cam r, substantially as and for the purpose set
forth.
Referring to the second part of the Invention, Figures 1ª, 2ª, 3, and 4º,
we claim,―
Sixth. The double acting cam H in combination with the disc I,
cutters X, X, and revolving screwdrivers b, b; constructed and operating
as and for the purpose set forth.
Seventh. The combination of the sliding bar E, provided with the
projections F, G, inclines J, J, and steady pin R, with the cams H, D,
30
3

page_text: disc I, and the sliding frame K, K, operating substantially as and for the
purpose set forth.
Eighth. The carrying disc I, having a transverse movement to clasp
the screw blank while being threaded, and an intermittent rotary move-
ment to present more blanks for the action of the cutters, substantially
as and for the purpose set forth.
Ninth. The disc I, sliding frame K, K, and bar E, operated as
described, in combination with the screwdrivers 6, 6, and cutters X, X,
as and for the purpose set forth.
Tenth. The combination and arrangement of the sliding bar T, having
the formers U, U, with the levers V, V, carrying set screws X¹, X',
shafts W, W, traversing arms X", X", and cutters X, X, substantially as
and for the purpose set forth.
Eleventh. In combination with the disc or carrier I in a screw
machine the oscillating race O, arranged and operated as set forth.
In witness whereof, we, the said Edward Nugent and John
Fanning, have hereunto set our hands and seals, this Twenty-
sixth day of December, in the year of our Lord One thousand
eight hundred and seventy-three.
Witness,
G. STACKPOLE,
New York City,
U.S.A.
HENRY D. BLAKE.
EDWARD NUGENT. (L.S.)
JOHN FANNING.
(L.S.)

page_text: paragraph clearer I add in line 33 after the words
sliding bar F the
words "works in a groove K¹, and." After the words "cam. Q₁" in
line 34 I add the words "Figure 1." At line 35 the "block L" would
be more properly termed a lever; the same word occurs again in lines
1 and 28, page 3.
.
"
In the first claim at line 12, page 6, this block L is termed
a "frame," which is certainly incorrect. In all these places therefore
I use the word " lever in place of "block" or "frame."
In line 35, page 2, the word "supported" should be "pivotted."
At line 4, page 3, the word." slots" is incorrect and should be "grooves."
At line 5 the words "not shewn in the Drawings" are struck out
because in the amended Drawing the hopper O is shewn. At line 6 the-
words "intermittent. gear wheel" should be "intermediate toothed
wheel S¹." At lines 7 and 9 the words " gear" wheel should be
"toothed" wheel. At line 8 before the words "giving motion" I add
the word "thereby." At line 11 after the words "main shaft A" I add
the words "shewn detached at Figures 4 and 4ª." At line 13 I strike
out the word "takes" and use in place thereof the word "receives."
At the end of line 13 I add the words "(see Figure 4)." At line 16
after the word "tilting" I add the words "or rocking." In the same line
I strike out the words " projection" and use instead thereof the words
"short lever ¹ projecting from." In line 17 before the word "shaft"
I add the word "rocking," and after the words "cam " I add the
words on the shaft I." In line 18 instead of the word "communi-
cating "I use the words "and communicates." In line 20 instead of
the word "rest q₁" I use the words " guard q',.Figure 3." In line 21
I strike out the word "when," and before the word "moved" I add the
word "then," and after the word "jaws " I add the words "h, h, are.”
At line 23. before the word "motion I add the word "next." At
line 25 before the word "opened" I add the words "have been," and I
continue the sentence without a full stop, and for the word "is "I use
the word "being." In line 27 instead of the word "side" I use the
word "top." In line 28 I strike out the word "block" and insert the
words "and lifts the lever." At line 31 before the word "frame "I add
the word " saw."
In line 38 after the word "which" I add the word
"machine.", At line 5, page 4, after the words " reference to "I add the
"

page_text: "
words "Sheets II. of." At line 12, instead of the word "projection," I
use the words "projecting pin." At the end of line 12 I insert the
words "another projecting pin," instead of the words "a projection."
In line 13 before the word " cam "I add the words "groove in the.”
In line 15, instead of the word "grooves," I use the word "slots," and
before the word "frame" in the same, line I add the word "sliding."
In line 24 after the word "heaviest " I add the word "
parts." In line
29, instead of the word "slots," I use the word " grooves." The
word "falls" should be in the plural number to agree with " screw
blanks." In the-same line. I strike out the words "the slots," and use
the word "they" instead. At line 30 I strike out the word "alternately,"
and use the word "successively." In line 32, instead of the phrase
"one of the side frames," I use the words "one side of the frame K." At
line. 1, page 5, instead of the word "junction," I use the word "juncture."
In the same line the word "presses" should be in the plural number to
agree with the word "inclines." The words "the stationary rest Q"
at the end of line 2 and beginning of line 3 are struck out, and trans-
ferred to the end of the paragraph. After the words "the same motion
in-line 3 I add the words "of the bar E." Before the word " holding
in line 4, and before the word " causing "at lines 15, 17, 31, and near
the beginning of line 36, and also before the word "carrying" in line 27,
and before the word "giving "in line 34 I add the word " thereby."
In line: 7 before the word "transverse " I insert the word "double,"
and instead of the word "forcing" I use the words "and forces."
Before the word "levers" in the same line I add the article "the."
In line 8, instead of the word "projecting "I use the word "project,”
and instead of the words "to which is given" I use the words
"by this means giving." In line 9 after the words " rocking
motion" I add the words "to them so as." In line 10 instead of the
words "gear wheel" I use the words "toothed wheel." In line 13
instead of the word "transmits " I use the word " transmitting," and
instead of the small letters x, x, I use the letters X", X". Instead of
the words "gear wheel" which occur twice in line 14 I use the words
"toothed wheels." In line 15 instead of the words "the screwdrivers "
I use the word "them." In line 24 instead of the word "slots" I use
the word "grooves." In line 27 I strike out the word "sidewise." In
line 28 I strike out the word "continued." In line 29 before the word
"moves" I. add the word "also." In line 35 instead of the words

page_text: "
gear wheel "I use the words "toothed wheel." In line 38 at the end
of the sentence instead of the words "a coiled spring" I use the words.
"coiled springs." In lines 12 and 19, page 6, in the first and third
claims instead of the word "frame" I use the word "lever."
In the second claim I enclose the words " operated by the sliding
spindle f" in a parenthesis, and before the words "the cutter" I add the
word "also."
In the seventh claim instead of the words. "projections F, G," I use
the words "projecting pins F and G." Between the letters H, D, I add
the word "and," and before the word "disc" in line 1, page 7, I add
the word "the." Moreover, to make this seventh claim clearer I
include in a parenthesis from and including the word "provided " in
linė 34, page 6, to the words "steady pin R," in line 35, page 6.
In order to render the Drawings more intelligible I have drawn
in, in outline, certain toothed wheels and other parts, the positions
of which are in the original Drawings only indicated by dotted.
lines, or are but imperfectly shewn. Morcover, I have colored some of
the parts of the Drawings, and have placed letters of reference on certain
parts which require to be more distinctly indicated.
>
In the description of the mechanism I have also in some places.
repeated the letters of reference so that the parts spoken of in the
description may be more casily found in the Drawing; and when the
said Specification has been corrected and amended in the manner above
mentioned the descriptive part will read as follows :-
Our improvements relate to the nicking and shaving of screw blanks,
and also to the threading or forming the threads of screws, and we have
devised mechanism for effecting both these ends. Our machines for
either purpose may be used in connection with other and ordinary means
for effecting the other work, but we prefer to use both together. We
can if necessary construct the mechanisms in a single frame, or we can
place the machines in juxtaposition, but we prefer to work them entirely
distinct, and to transfer the blanks from one to the other, according to
the convenience of the operator or the requirements of the business.
The object of the first part of our Invention is to make a machine
that will shave and nick the head of a screw blank, the action being

page_text: automatic, and that it shall do the work more rapidly and be more
simple than machinės as hitherto made.
Our Invention will be readily understood by reference to Sheet I. of
the accompanying Drawings, which form a part of this Specification.
Figure 1 is a plan or top view of our machine; Figure 2 is a side
view; Figure 3 is a cross section; and Figure 4 is a longitudinal
section of the main shaft; and Figure 4* is a plan view of the same.
In these Figures A is the driving or main shaft; B is the belt.
pulley; C is a cam, which operates a forked lever 6 to give longitudinal
'motion to the shaft A. A cam E gives longitudinal motion to the
bar F. A pinion G on the main shaft A gears into a spur wheel S¹
on a stud, and to the wheel S₁ is attached a pinion S" which gears into
a toothed wheel H on the shaft I, and thereby communicates rotary
motion to the cams E and C on the shaft I.
A projecting pin Jon the
sliding bar F works in a groove K¹, and gives intermittent rotary motion
to the double acting cam K. The bar F has a cam Q1, Figure 1, on its
top, which gives an intermittent rocking motion to the lever L pivotted
on the stud M between the cutter and the sliding bar F. A shaft N has
one of its bearings in the end of the lever L, the other end being sup-
ported in the main frame at P. The bearings are so constructed that
one end of the shaft N can oscillate. The cam K is fast on the end of
the shaft N. Q is a disc on the shaft N, having grooves across its
periphery, into which the blanks are fed from a hopper O down a
channel O¹. The pinion G on the main shaft A gives motion to an
intermediate toothed wheel S₁, which in turn gives motion to a toothed
wheel T on a shaft U. A bevelled gear wheel V on the shaft U gears
into a bevel gear W, thereby giving motion to a countershaft X carrying
a toothed wheel Y that gears into a wheel Z, thus communicating motion
to the shaft T¹ on which the saw d is fast. A spindle f passing through
the main shaft A, shewn detached at Figures 4 and 4°; is connected with
the sliding bar F by means-of an arm U¹, and receives longitudinal
motion from the said bar F for the purpose of operating the jaws h, h,
'pivotted in the end of the shaft A (see Figure 4) for the purpose of
grasping the blank at the proper time and revolving it against the
shaving tool or cutter k. The saw shaft T¹ has its bearings in a tilting
or rocking frame j, and an arm m connects the frame with a short

page_text: lever ¹ projecting from the rocking shaft n. A cam on the shaft I
acts against the lever n' projecting from the shaft n, and communicates a
rocking motion to the cutter k. As the disc Q revolves it carries the
blank forward opposite the jaws h, h, (a stationary guard q', Figure 3,
preventing the blanks from dropping out). The shaft A is then moved
longitudinally, and the jaws h, h, are operated to grasp the blank and
revolve it against the action of the cutter or shaving tool k, which is
moved forward and shaves the blank. The next motion of the disc Q
carries the blank forward after it has been shaved and the jaws have
been opened, the shaft A being withdrawn to the proper position to
allow the blank to be moved forward for nicking. When the blank
has passed forward to the position for nicking, the cam Q' on the top of
the sliding bar F comes in contact with and lifts the lever L, and presses
the end of the shaft N down, carrying with it the disc Q, which clasps
the blank firmly upon the rest t, holding it while the same motion that
throws the cutter forward to do the shaving of a blank tilts the saw
frame forward,, and presses the saw d against the head of the blank and
cuts the nick, after which operation the disc Q rises and releases the
blank. The forward motion of the disc Q carries the blank beyond the
guard q', and it falls into a receptacle below, when other blanks are
passed forward, and the same operations are repeated as before.
The object of the second part of our Invention is to furnish a machine
for cutting threads on screw blanks, which machine shall be capable of
accomplishing much more work in a given time than any hitherto made,
and to be much more simple and less liable to get out of order.
Our machine is so constructed that it will successfully cut and finish
two or more screws at the same time.
Our Invention will be readily understood by reference to Sheet II. of
the accompanying Drawings, which form a part of this Specification.
Figure 1 is a plan or top view of our machine; Figure 2ª is a side
view; and Figures 3 and 4ª are cross sectional views of our machine.
In these Figures A is the main or driving shaft; B is a pinion which
operates a spur wheel C, thereby communicating motion to the cam D;
E is a sliding bar, which takes its motion from the cam D by means
of a projecting pin F entering the cam slot D'. The sliding bar E

page_text: _has another projecting pin G that works in a groove in the cam H,
giving to the said cam H intermittent rotary motion. The sliding
bar E has cam-shaped sides J, J, which pass through rectangular
slots in the sides of the sliding frame K, K. The cam H has its
centre bearings in the frame K, K, consequently the cam H is moved
sidewise with the frame. I is a disc attached to the end of the cam H
and moved with it. L is a hopper into which the blanks are put; this
hopper is deeper in its centre than at its sides, so that the blanks have a
tendency to fall toward the centre. There is a slot M through the
bottom of the hopper through which an oscillating receiver N is made to
move and (by its motion) catch the blanks as they fall in position and
pass them forward to the race O. The heads of the blanks being always
the largest and heaviest parts naturally fall to the centre of the hopper,
and the slot M´extending radially from the centre toward the sides of
the race O the blanks are always caught with their points or small ends
downwards, keeping the race O filled with blanks, which gravitate
toward the disc I, which is provided with half round receiving grooves P
into which the screw blanks fall, as they are by the rotary motion of the
disc I successively brought under the discharge end of the race O. The
race O is connected or hung by an arm q having a fork that embraces a
pin on one side of the frame K, in such a manner that it moves with the
side motion of the disc. A guard N' is attached to the lower end of the
race and rests against the side of the disc I to hold the blanks in
´position while they are passed to the cutter as the disc I rotates, carrying
the blanks forward opposite a stationary rest Q. At this juncture the
inclines J, J, on the sliding bar E press the frame K, K, forward,
causing the disc I to move forward and grasp the blank firmly against
the stationary rest Q. The same motion of the bar E carries a steady
pin R forward against the side of the disc I, thereby holding the disc
firmly in position while the thread is being cut on the blank by
cutters X, X, made fast on the shafts W, W. A cam S on the shaft D'
acts against a double transverse sliding bar T and forces it against the
levers V, V, which are fast to and project from. the shafts W, W, by
this means giving a rocking motion to them so as to force the point
of the cutters X, X, against the blanks. A toothed wheel Z, on the
main shaft A gives motion to a gear wheel Y, on the side of which
is a cam Z which gives longitudinal motion to the shafts W, W,
to which the cutters are fastened, one of the shafts being acted
1

page_text: on and transmitting motion to the other by the arms X", X". A
toothed wheel -d on the main shaft gears into toothed wheels on the
screwdrivers b, b, thereby causing them to revolve. An arm c' attached
to the bar E extends to and enters grooves around the ends of the
screwdrivers b, thereby causing them to move longitudinally with the
bar E. The longitudinal motion given to the screwdriver is to force
their points into the nick in the heads of the blanks. The blanks are
revolved by the screwdrivers against the action of the cutters X, X.
The longitudinal motion of the shafts W, W, is to traverse the cutters
along the blanks, and give the proper size and pitch to the screw thread.
As the disc I revolves the blanks drop from the race O into the grooves P,
and are carried forward opposite the cutters X, X. The sliding bar E
now moves forward, bringing the steady pin R in place to hold the
disc I from revolving, and the inclines J, J, force the frame K, K,
forward, thereby carrying the disc I toward the cutters X, X, and
pressing the blanks against the stationary rest Q. The forward motion
of the bar E also moves the screwdrivers b so far longitudinally as to
force their points into the nicks in the heads of the blanks, thereby
causing the blanks to revolve against the action of the cutters X, X.
The cutter points are forced against the blanks by means of the sliding
bar T acting against the levers V, V, projecting from the shafts W, W,
thereby giving to said shafts a rocking motion. At this juncture the
cam Z' on the side of the toothed wheel Y acts against the ends of the
shafts W, W, thereby causing them to move longitudinally, thus causing"
the cutters X, X, to traverse the length of the screw blank four times,
they being each time forced back by coiled springs.
Formers U, U, are attached to the ends of the sliding bar T which act
against set screws X³, X', passing through the levers V, V, and cause
the cutters X, X, to move farther forward as they approach the end of
the blank, by which means a gimlet point is given to the screw. When
the screw is finished the continued motion of the machine withdraws the
disc I and releases the screw, which is dropped into a receptacle:
below.

page_text: -
First. The combination of the oscillating lever L, sliding bar F,
shaft N, carrier disc Q, guide q', and stationary rest t, operating sub-
stantially as described.
Second. The intermittent rotary oscillating disc Q and guide q³ in
combination with the rotary shaft A carrying the jaws h; h, (operated by 5
the sliding spindle f), and also the cutter & operating to shave the head
of the blank, substantially as and for the purpose set forth.
Third. The combination of the oscillating lever L, sliding bar F,
shaft N, disc Q, guide q', stationary rest t, with a nicking saw, sub-
stantially as and for the purpose set forth.
Fourth. The intermittently rotary oscillating disc Q and guide q¹ in
combination with the nicking saw d, shaving cutter k, and a chuck for
revolving the blank, substantially as and for the purpose set forth.
10
Fifth. The frame j carrying, the saw shaft T', and oscillated on the
revolving shaft X by means of the connecting rod m, arm ¹ on the shaft 15
n, arm n', and cam r, substantially as and for the purpose set forth.
•
Referring to the second part of the Invention Figures 1", 2", 3ª, and
4ª, we claim,
Sixth. The double acting cam H. in combination with the disc I,
cutters X, X, and revolving screw drivers b, b, constructed and operating. 20
as and for the purpose set forth.
Seventh. The combination of the sliding bar E (provided with the
projecting pins F and G, inclines J, J, and steady pin R), with the cams
Hand D, the disc I, and the sliding frame K, K, operating substantially
as and for the purpose set forth.
.
Eighth. The carrying disc I having a transverse movement to clasp
the screw blank while being threaded, and an intermittent rotary move-
ment to present more blanks for the action of the cutters, substantially
as and for the purpose set forth.
:
20
Ninth. The disc I, sliding frame K, K, and bar E, operated as 30
described in combination with the screw drivers b, b, and cutters X, X,
as and for the purpose set forth.
0
Tenth. The combination and arrangement of the sliding bar Thaving
the formers U, U, with the levers V, V, carrying set screws X¹, X', shafts

page_text: W, W, traversing arms X", X", and cutters X, X, substantially as and
for the purpose set forth.
Eleventh. In combination with the disc or carrier I in a screw
machine, the oscillating race O arranged and operated as set forth.
In witness whereof, I, the said John Fanning, have hereunto set
my hand and seal, this Twentieth day of July, in thé year of
our Lord One thousand eight hundred and seventy-five.
and seventy-five.
RICHARD BAGGALLAY,
Attorney-General.