Improvements in Boot-nailing Machines.
Year: 1891

page_text: Date of Application, 15th Dec., 1891
Complete Specification Left, 14th Sept., 1892-Accepted. 15th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Boot-nailing Machines.
1, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., The
General Patent Office, No. 4, South Street, Finsbury, in the County of Middlesex,
Patent Agents, do hereby declare the nature of this invention (a communication
to me by The Champion Nailing Machine Company, of Boston, Massachusetts,
United States of America,) to be as follows:-
This invention relates to that class of boot-nailing machine in which the nails are
cut from a continous wire.
The machine comprises a vertical standard carrying a horizontal main shaft
provided with fast and loose pulleys at one end and at the other end with a cam-
shaped crank disc. The said disc is provided with a pin which operates a vertical
slide, the said slide carrying an awl which serves to prick holes in the boot or shoe
soles and heels for the reception of the nails. The said vertical slide is carried in
a horizontal slide which is operated by the cam shaped-disc and serves to make the
required spacing between the nails in the boots or shoes. Means such as a screw is
provided for adjusting the said spacing.
The wire from which the nails are formed is carried by a drum and is fed down
between feed-wheels operated by ratchet and pawl mechanism driven by a pin on
the vertical slide. One of the feed-wheels is rendered adjustable by means of a
screw to allow the wire to be placed in position.
On the horizontal slide is arranged a pair of cutters for cutting the wire into
lengths, one of which cutters is fixed while the other is movable, it being carried
by a spring arm pivotted to the horizontal slide and operated by the pin on the
vertical slide. The movable cutter is held in position by an inclined key fixed by
a screw. Each length of wire before being cut off is passed into a groove in a
sliding-bar or carrier which carries each cut-off length over an opening through
which it is driven by a plunger into the boot or shoe sole or heel. The carrier is
jointed to and is driven by an arm pivotted to the horizontal slide and having a pin
engaging in a cam-slot in a bracket on the vertical slide. The plunger works
through the vertical slide, it being lifted by the pin on the cam-shaped disc herein-
before described and forced down to drive the nails by means of a spring-arm, the
spring of which can be increased in tension by suitable means such as a ratchet
and pawl.
The boot or shoe is supported by means of a spring-rest or horn having a spring-
top and moved down by a suitable treadle to allow the said boot or shoe to be placed
thereon. The said rest is also adapted to move down to allow the spacing to take
place and for this purpose its treadle is connected to a rack gearing with a pinion
on a crank-arm operated by a cam on the main-shaft, the said pinion and rack being
locked together by another cam on the main-shaft causing a pivotted arm to bear
against an arm connected to the said pinion.
A suitable edge-gauge or guide is provided for guiding the work and is rendered
adjustable by means of a bar engaging therewith and having a cam-slot working
on a pin.
The fast pulley is connected to the main-shaft by a clutch comprising stops in the
boss of the pulley, with either of which engages a spring-dog or pawl connected to
a boss on the said shaft, the said dog being disengaged at each revolution of the

page_text: shaft by an arm connected to it coming against a stop connected to a handle. This
stop can be kept out of contact with the arm by means of a treadle..
Dated the 15th day of December 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London Agents for the Applicant.
Improvements in Boot-nailing Machines..
I, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., The
General Patent Office, No. 4, South Street, Finsbury, in the County of Middlesex,
Patent Agents, do hereby declare the nature of this invention (a communication to
me by The Champion Nailing Machine Company of Boston, Massachusetts,
United States of America,) and in what manner the same is to be performed to:
be particularly described and ascertained in and by the following statement :-
This invention relates to that class of boot-nailing machine in which the nails
are cut from a continuous wire.
The wire may be of any suitable metal and of any desired section round, square,
triangular or otherwise.
The machine is adapted to drive nails or slugs into the soles or heels of boots
and shoes at any desired distance in from the, edge and at any desired spacing or
interval from nail to nail and to cut the nails or slugs off either level with the sole
or some distance above the sole or will drive the points of the slugs some distance
through the sole as required.
The machine will slug or nail heels, top pieces, soles &c., before they are attached
to. boots when such is required.
The work is supported upon a spring-rest or stump either straight or crooked or
upon a spring horn as the nature of the work requires it.
The machine operates by pricking a hole in the work by means of an awl, feeding
forward the work by the same until the hole is under a vertical nail driver, cutting
off a nail from the end of the wire previously fed down by feed wheels passing the
cut off nail in under the driver and over the hole pierced by the awl and. driving.
the nail into the work by the said driver.
The machine comprises a vertical column or standard carrying at the top a head
frame having suitable bearings in which revolves a horizontal main shaft provided
with loose and driving pulleys at the rear end and at the front end with a cam
shaped crank disc. The disc is provided with a crank pin and roll which operate
a vertical slide, the said slide carrying an awl which serves to prick holes in the
boot or shoe soles and heels for the reception of the nails. The said vertical slide
is carried in a horizontal slide which is operated by the cam shaped disc aud. serves
to make the required spacing between the nails in the boots or shoes. Means are
provided, such as a screw and adjustable nuts, for regulating. the amount of the
said spacing.
The wire from which the nails or slugs are cut off is carried by a reel or drum
at the top of the machine and is fed down as required between feed wheels operated
by ratchet, and pawl mechanism. driven by a pin on the vertical slide. One of
the feed wheels is adjustable by means of a screw to allow the wire to be placed
in position.
The, horizontal slide carries a pair of cutters for cutting, off the nails or slugs
from the end of the wire, one of the cutters being fixed-and the other operated by
the machine, it being carried by spring arm pivotted to the horizontal slide and
operated by the pin on the vertical slide. The operating, cutter is held.in. position
by an inclined key fixed by a screw.. Each length of wire before being cut off is
passed into a groove in a sliding bar or nail carrier which carries cach cut off
length over an opening through which it is driven by a plunger and driver into the

page_text: lide and having a pin engaging in a cam slot in a bracket on the vertical slide.
The plunger works through the vertical slide, it being lifted by the crank pin in
he cam shaped disc hereinbefore described and forced down to drive the nails by
means of a spring arm, the spring of which can be increased in tension by means
of a ratchet and pawl.
The work is supported on a spring rest or horn as already described which may
be moved down by a suitable treadle to allow the work to be placed thereon.
The said rest is also adapted to allow the feeding of the work to take place and for
this purpose its treadle is connected to a rack gearing with a pinion carried in a
bell crank lever operated by a cam on the main shaft, the said pinion and rack
being locked together at the proper times by another cam causing a pivotted arm or
lever to bear against another arm formed on the free end of a coiled gripping spring
which embraces a hub formed on the said pinion.
A suitable edge gauge or guide is provided for guiding the work and is rendered
adjustable by means of a cross bar engaging therewith and having a cam slot
working on a pin.
The driving pulley is connected to the main shaft by a clutch comprising stops in
the boss of the pulley with either of which engages a spring dog or pawl connected
to a boss on the said shaft the said dog being disengaged at each revolution of the
shaft by an arm connected to it coming against a stop connected to a handle. This
stop can be kept out of contact with the arm by means of a treadle.
A friction brake is employed upon the main shaft to ensure prompt stopping and
prevent rebound of the machine and various work rests or tables may be employed
as required by the nature of the work in hand.
The invention will be understood by reference to the following description,of-the
accompanying drawings, in which :-
Figure 1 shews a front view of the machine :
Figure 2 is a side view of the same.
Figure 3 is an enlarged front view of the head:
Figure 4 is a side view of the same,
Figures 5 to 25 shew views, of details of the various parts.
The same letters refer to the same parts.
A (Figures 1 and 2) is the base; B the column or standard and C the head frame
of the machine.
The main shaft a is carried in bearings a', a² in the head frame C and is provided
with a loose pulley a3 and driving pulley at. At the front end it is provided with a
cam-shaped crank dise a' (Figures 15 and 16).
The disc as has a crank pin a' and roll a' which enter a curved slot as formed in
a vertical slide a' and serve to operate the said slide. The slide a' carries the awl alo
which pricks, the holes required for the reception of the nails, in the soles or heels
of the boots or shoes.
The slide a is carried in a horizontal slide (Figures 1 to 4 and 15, 16 and 17)
which is free to move sidewise in a way prepared for it in the frame C, and is
operated by the cam shaped disc a° and serves to make the required spacing between
the nails in the boots or shoes. The roll is carried on the slide 6 and is kept in
contact with the edge of the cam disc a' by a spring 63 (Figure 16) operating
between the fixed frame C and a piece b attached to the slide b. Nuts are
provided on a screw 66, secured in the frame C, for the purpose of regulating the
amount of travel of the slide band consequently determining the spacing of the
nails. The puts act as a stop to the slide and prevent when screwed up
the roll 6 partaking of the full throw of the can disc a.
+
The wire c from which the nails are cut off, and which may be of any desired
section, is carried on a drum or reel c¹ (Figures 1 and 2) by an arm c³ extended
from the head frame C of the machine. A friction washer and spring c* heing
provided to act as a brake to the unwinding of the wire. The wire passes down
between the feed wheels c (Figure 17). The wheel c³ is carried on a screwed
08

page_text: bar and kept up to the wire c by a spring cd contained in a spring box attached
to the slide band for the purpose of withdrawing the feed wheel co from the wire c
a hand nut is provided being threaded on the bar c and bearing against the
box c⁹.
The other feed wheel c is mounted on a stud c" carried from the slide and is
connected by gear wheels c¹³, 13 to a ratchet wheel c¹ mounted on a stud c¹ also
carried from the slide b. The ratchet wheel c¹ is operated by means of pawls c
carried in a block c" and held from returning by other pawls e¹8 (Figures 3 and 15)
working in a block c carried from the slide b.
The pawls cl, 18 are free to slide in ways prepared for them in the blocks c, c19
and are held in engagement with the teeth 20 of the ratchet wheel by springs.
The block is carried on the end of a radius link (Figure 17) which is free
upon the hub of the ratchet wheel e¹ and a piece is pivotted on a pin ea in the
link The piece 22 has a guide slot 24 (Figure 3) engaging with a stud c² fixed
in the slide band it is maintained raised in contact with an adjustable stop screw c²
(Figure 15) by means of a spring ". The stop screw being carried on the
slide b. At the lower end of the piece is another piece c28 (Figures 2 and 3)
which is adapted to be engaged by a pin 2 carried up and down by the slide a³.
The pin in its downward movement strikes upon the piece 28 and carries it
together with the piece c downwards so as to cause the pawl cl to revolve the
ratchet wheel c" and feed downwards the wire c. As the piece c descends the
radius link moves inwards or towards the centre of the machine the upper end co
of the piece and the slot "sliding downwards upon the stud c moves outwards
or from the centre of the machine the lower end of the piece ". The result of
this is that the piece is at last withdrawn from the pin e2 which passes downwards
as shewn in Figure 3 and the feed movement ends before the cutting off of the wire
takes place. By adjusting the stop the amount of feed or length of wire fed
down may be regulated.
For the purpose of cutting off the wire a pair of cutters d, d¹ (Figure 3) are
provided. The cutter d is cramped fast in the horizontal slide and the cutter d
in an arm d² which pivotted on a pin 3 in the same horizontal slide b. The
arm d² is operated by a block d' on the vertical slide a or by the pin 29 which
when the wire feed movement is ended strikes upon the arm d² and by depressing
it forces forward the cutter d' against the opposing fixed cutter d so as to sever
the wire c at the point where it passes between them. Owing to the shape of the
slot a in the vertical slide a the pressure of the block comes twice upon the
arm during the time the roll a' is passing the bottom portion of its circular path
as at the moment when the roll a' is upon the point (Figure 15) a slight lifting
of the slide a takes place. This causes a double nip to be given by the cutters d, d
to the wire c which is found advantageous in ensuring its severance.
The arm d
is held up by means of a spring and the cutter d' is held in position by an inclined
key d' fixed by a screw d.
Each length of wire before being cut off is passed into a groove e (Figures 9
and 10) formed in a sliding bar or carrier e¹ (Figures 3, 4, 7, 8, 9 and 10) which
carries cach cut off length over an opening 2 (Figures 13 and 15) through
which it is driven by a nail driver e³ (attached to a plunger e) into the heel or sole
of the boot.
The carrier e¹ is jointed by a pin eª to an arm eª (Figures 1 10 4) which is again
jointed on a pin e to a lever e mounted on a pin e carried on a bracket e¹ attached
to the horizontal slide b. At the upper end of the lever is a roll el mounted
on a pin e¹ in the lever e and engaging with a cam slot e" formed in a bracket e
attached to the vertical slide a the upward and downward movement of which
operate the lever e³ and carrier el. A spring 1 connects the armed with the lever e³
in such a manner that should the cut off piece of wire jam so as to prevent move-
ment of the carrier e¹ the spring will yield and prevent breakage. A set screw eld
serves to adjust the carrier'e¹.
The nail driver e³ is carried in the plunger et which works through the vertical

page_text: slide a and is lifted by a specially shaped portion of the crank pin a taking under
a projection e (Figures 15 and 16) formed upon the plunger e. This lifting is
done against the pressure of a spring (Figures 1 to 4) which is wound upon a
pin f carried in an arm of the machine frame and acting through a lever upon
the top end of the plunger e*. The spring may be wound to any desired degree
of tension by means of the square of the pin and the tension is maintained by
a pawl engaging with a ratchet wheel upon the same pin. When the crank
pin a has arrived at its highest point it passes from under the projection e" which
then being unsupported allows the spring f to drive down the plunger et and
driver e so that the latter striking upon the severed piece of wire or nail drives
the same into the boot sole.
The boot or shoe is supported by means of a horn or stump (Figures 1, 2
and 14). The horn g is carried in a manner so as to allow of its being revolved
upon a vertical post supported by a spring and capable of vertical movement
in bearings g, g, formed on the column B of the machine. The post 2 is connected
by a link to a treadle g' so that by depressing the treadle, which is pivotted on a
pin g in the base A, the horn g may be lowered against the pressure of the spring g³
for the purpose of putting on or taking off a boot. The post is furnished with
a collar having a subsidiary spring g resting upon it which supports the weight
of the horny and the boot or work so as to keep the latter in contact with the
guard and exercise a certain amount of gripping force upon the work at the time
when the spacing of the nails is taking place and there is also an adjustable
collar g to ensure that the horn g comes down when the treadle g' is depressed by
the operator. So that the amount of upward pressure of the spring g³ may
be regulated the collar " against which it bears is made adjustable upon the
post y*.
While the spacing of the nails or feeding of the boot is taking place the upward
pressure of the spring 9 is removed from the horn in the following manner.
The treadle is connected by a rod to a rack (Figure 5) gearing with a
pinion carried in one arm ³ of a bell crank lever which is carried on a pivot /*
in the frame C. The other arm of the bell crank is furnished with a pin 4* and
roll engaging with a cam 8 on the main shaft a.
The pinion during certain operations of the machine is free to revolve so that
movements of the treadle g' and rack ' may be made irrespective of the bell crank
lever but just before the feed movement which determines the spacing of the nails
begins to take place a cam i comes into operation upon a lever (which is pivotted
on a pin in the frame C and furnished with a cam roll on a pin ) and causes a
roll carried on a pin at the lower end of the lever to press upon a pro-
jection formed upon the free end of a coiled grip spring the other end of
which is in engagement with a screw 10 carried in the arm of the bell crank lever,
thus causing the said spring to grip fast upon a barrel or hub "formed
upon the arbor of the pinion and so locking the pinion ² as to prevent it
revolving.
is
The before mentioned cam then operates the bell crank lever so as to raise the
arm and as the pinion raised with it and is also locked from revolving it
raises the rack and rod so as through the treadle y' to pull down the post g³
and by compressing the spring relieve the horn of its upward pressure.
The edge gauge or guide (Figures 11 and 12) is provided for guiding the
work and is used at all times when it is desired to drive nails at any given
distance in from and parallel with the edge of the boot sole. It is mounted in
a slide in which it can be adjusted nearer to or further from the awl and
driver by moving endwise a sliding bar furnished with a cam slot j³ in which
engages a pin which is fast in the gauge j. The whole is carried on a slide
bed on which it can be cramped fast in any desired position by means of a
screw the bed j being secured to the machine frame C. An adjustable stop is
provided against which the slide j' may be brought forward, then with one end of

page_text: the slot against the pin
which by moving the bar
another row of nails may be
a row of nails may be driven in the boot sole after
until the other end of the slot is against the pinj
driven parallel with the first row. To regulate the
distance between these rows another adjustable stop is provided which can be set
in a position so that the peg provided in the bar shall strike, against it before
the end of the slot j³ reaches the pin.
When driving the nails not parallel with the edge
of the sole the slide j¹ may
be moved back out of the way and cramped fast by the screw 16.
washer puts friction on the sliding bar.
10
A spring
The driving pulley a' (Figures 1 to 4) is connected to the main shaft a by means
of a clutch. Projections k, (Figure 6) are provided on the driving pulley and
driving dog (held in engagement by means of a spring ³) is mounted on a
pin in a disc secured upon the driving shaft a.
Upon the pin is a releasing arm which when the machine is running is
carried round with the disc k³. A stop lever is arranged so that it stands
in the path of the arm for the purpose of stopping the machine at each
revolution but may be held out of operation by means of a handle 48 or a treadle /*
(Figures 1 and 2) when it is desired the machine should run.'
in a
The stop lever is carried by a bracket 0 on the frame C and is moved by a
lever, connected by a rod to the treadle k which is carried on pin
bracket A spring under the treadle keeps the stop lever
ment when not held out by the treadle k³.
in engage-
Figure 14
The stump previously referred to consists of a round socket
adapted to fit upon the upper end of the horn post 9 (when the horn g'is removed)
where it may be clamped fast by means of the screw 1.
15
It may either be straight or have a set in it and it is furnished with a tubular
piece cramped by a screw and having a circular table or spring rest
supported by a spring and kept in place by a screw 1. The work is supported
on the table and the spring answers the same purpose as the spring 90 already
described. When it is desired to allow the points of the slugs to project through
the work a table or rest m of the form shewn in Figures 22 and 23 is employed
having a ridge m and a raised portion 'm² formed upon its upper surface and a
slot m³ through which and the piece 72 a peg is passed for the purpose of preventing
the table m from turning.
The guard has been already referred to, it consists of a plate n (Figures 11, 12, 20
and 21) having an opening through which the awl at and the driver operate
and it is secured by screws n2 to the slide bed which is as before stated secured
to the head frame C of the machine.
When it is desired that the nails or slugs be not completely driven in level
with the surface of the work this plate is made of the form as shewn at o
(Figures 18 and 19) having two projections o' and o³ upon its under surface.
The part p (Figure 4) is a friction brake composed of two clipping pieces gripped
upon the shaft a by means of a screw p'. It ensures the stopping of the machine
when the arm is brought into action.
When nailing close to the edge of the work it is advisable to support the same
close up to the edge gauge and to allow of this a spring rest or table of the form
shewn at (Figures 24 and 25) is made use of having a hollow ' in its edge
adapted to fit the curve of the edge gauge j..
The machine is operated in the following manner :-
A belt being applied to the driving pulley a so as to revolve it 'ip the direction
shewn by the arrow and the machine being in proper adjustment for the nature
of the work required to be done the operator depresses the treadle so as to
lower the horn on which he places a boot, he releases the treadle allowing
the horn to rise and sees that the edge of the boot sole is against the gauge j
so as to ensure the nails being driven at the desired distance in from the edge.
Then, by means of the handle 4 on the treadle / he withdraws the stop from
#33

page_text: the arm the spring causes the driving dog k² to move outwards into the path
of the projections k, k' one of which striking upon the driving dog k² causes the
main shaft a to be set in motion.
..
The roll a' in the cam slot a presses downwards the vertical slide a so as to
drive the awl a10 into the sole or heel of the boot. The nose of the awl holder
then takes upon the surface of the boot sole and presses it slightly away from the
guard while at the same time the upward pressure of the spring upon the
horn and boot is rendered inoperative in the following manner. The cam i
through the lever cramps the spring upon the pinion h² so as to lock the
latter fast in the arm of the bell crank. The cam 8 then operates. the bell
crank and lifts the arm h³, rack h' and rod h so as through the treadle 'g' to
draw down the post and compress the spring g³ so that it no longer bears up.
the horn g which is then only supported by the pressure of the spring g which
does little more than sustain the weight of the horn and boot.
During the down stroke of the awl a¹o the pin 29 fast in the vertical slide aª
takes on the piece 28 which is attached to the piece and by drawing down the
same against the pull of the spring " causes the pawls cle to turn the rateliet
wheel and through the gears c", c" to revolve the feed wheel and feed down
the wire c.
Cy
The block d fast to the vertical slide a takes upon the cut off lever d so as to
bear forward the cutter d' towards the fixed cutter d'and cut off the wire this
operation being performed owing to the shape of the slot as in the slide a by two
separate pressures of the roll a one on each side of the bottoni dead centre, a slight
pressure being given to the roll a acting on the point of the cam groove dat
the moment when the roll a' is just central.
While the awl al is down and in the work the feed of the work takes place, the
horn post g² being meanwhile held down by the cams i and iii its lowest position.
The cam disc a acting on the roll moves the slide b so that the entire head of
the machine together with the boot are moved to the left the distance required for
the desired spacing of the nails. The edge gauge and the horn do not,
partake of this movement being carried on fixed parts of the machine.
A's soon as the feed is over and the awl a begins to lift, the cams i'and pass
out of action so as to set frce the horn post 92 and allow the spring g' to again
come into action.
The upward movement of the slide a carrying the cam slot, e causes the latter
to operate the lever and move inwards over the opening the nail or severed'
piece of wire.
The crank pin a while raising the slide a takes under the projection e" so as to
raise the plunger e and nail driver above the nail while the latter is moved
inwards under the driver e as above described. The spring fields before the
rising plunger e while the full part of the cam dise a passing from under the
roll allows the spring is to return the head & to the right so bringing the nail.
and driver e vertically over the hole last pierced in the leather and now vacated
by the awl a then, when at its highest point the crank pin a passes froin under
the projection and allows the spring to drive down the plunger e¹ and nail
driver so driving the nail home into the boot.
The first part of the downward movement of the slide a causes the lever es to
operate and withdraw the nail carrier el ready for the wire c to enter which is then
fed down into it after which the awl al again pierces the leather and the work
proceeds as before described.
.:
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:-
In a boot or shoe nailing machine in which the nails are cut from a continuous
wire-
1. Carrying the awl in a vertical slide mounted in a horizontal slide both of

page_text: which are suitably operated so as to prick and feed the work, substantially as
described.
2. The arrangement shewn in Figure 16 for regulating the amount of the feed
of the work, substantially as described.
3. The mechanism for feeding the wire consisting of the feed wheels, gears,
ratchet and pawls and the slotted piece operated by the downward movement of
the vertical slide in such a manner as to allow the feed wheels to come to rest
while the continued downward movement of the slide operates the cutting off
mechanism, substantially as described.
4. The mechanism for carrying and varying the position of the movable feed
wheel, substantially as described.
5. The arrangement for cutting the wire into lengths consisting of the pair of
cutters and the mechanism for operating the moving cutter, substantially as
described.
6. The sliding bar or nail carrier which carries each cut off length of wire over
the opening and under the driver, substantially as described.
7. The method of operating the nail carrier and mounting the same with a
spring connection, substantially as described.
8. The combination of the spring driver with the vertical and horizontal awl
carrying slides, substantially as described.
9. The use of a subsidiary spring for supporting the horn or table which comes
into action during the feeding movement, substantially as described.
10. The arrangement consisting of the cams, rack and pinion and locking
apparatus with connections whereby the born post is moved down so as to relieve
the work of the pressure of the spring g³ while the feed movement is taking place,
substantially as described.
11. Supporting and operating the horn or work rest in such a manner that while
the pricking and nailing operations are taking place the work is firmly gripped
between the horn or table and the guard but that while the feeding of the work is
taking place the grip is released and the work is held up against the guard by a
light pressure only, substantially as described.
12. The adjustable edge gauge or guide for guiding the work constructed and
operated as herein described and for the purpose specified.
13. The combination with the edge gauge of a guard through which the awl
and driver operate, such guard being either constructed flat as shewn in Figures 20
and 21 or with projections as shewn in Figures 18 and 19, substantially as
described.
14. The mechanism consisting of the spring dog, the arm and connections and
the treadle for stopping and starting the machine, substantially as described.
15. The combination with the clutch and spring dog of the brake upon the main
shaft as described and illustrated and for the purpose specified.
16. In the machine hereinbefore described the combination with the nail driving
plunger of the spring rest or table as described and illustrated for use when
driving nails with their points projecting through the work.
17. In the machine herein before described the combination with the nail driving
plunger of the spring rest or table as described and illustrated for supporting
the work when nailing close to the edge.
18. The machine as herein described and illustrated constructed and operated
in the manner shown and for the purpose set forth.
Dated this 11th day of Novemba 1900
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.