Improvements in or relating to Burnishing and Paring Machinery used in the Manufacture of Boots and Shoes.
Year: 1891

page_text: Date of Application, 23th Mar., 1891
Complete Specification Left, 17th Aug., 1891-Accepted, 26th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in or relating to Burnishing and Paring Machinery
used in the Manufacture of Boots and Shoes.
I, WILLIAM ROBERT MUDD of Granby Place, Rutland Street, Leicester
Engineer and Machinist, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to burnishing and paring machinery used in the.
manufacture of boots and shoes.
The object of the invention is (1) to provide mechanism for automatically
moving the jack carrying the boot or shoe during the operation of burnishing or
paring and (2) to provide improved mechanism for operating the shaft carrying
the burnishing or paring tool so as to impart the requisite rocking motion thereto.
In order for the jack to automatically present the heel of a boot or shoe to the
burnishing or paring tool, so that the whole of the surface of the heel shall be
operated upon, it is necessary for the jack to travel to and fro in a horizontal
direction, a distance equivalent to the height of the heel, and to be raised and
lowered somewhat according to the shape of the heel.
The horizontal movement of the jack may be obtained by connecting it to a
horizontally reciprocating shaft having bearings in the upper part of the pillar or
standard, and furnished with an adjustable collar connected to and operated by a
slotted vertical lever actuated by a cam, eccentric pin or equivalent on preferably
a spur wheel operated through suitable gearing on the driving shaft.
The movement of the horizontal shaft is regulated by raising or lowering the
vertical lever, through the medium of links connecting the said lever to a shaft
furnished with a quadrant operated by a hand set-screw or equivalent means.
The jack is raised to an extent, variable according to the shape of the heel, by
a suitably shaped cam, moving in contact with a roller on the upper end of a
vertical rod connected to the same shaft as the usual treadle which supports the
vertical rod connected to the jack.
The weight of the jack is sufficient to lower itself.
The necessary rocking motion of the shaft carrying the burnishing or paring
tool is obtained by mounting thereon a quick-threaded screw or worm partially
enclosed by a horizontally reciprocating nut or equivalent from which the said
shaft receives its rocking motion.
The nut or equivalent is reciprocated by link plates and suitable lever arrange-
ment operated from the driving shaft.
Dated the 28th day of March 1891.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Burnishing and Paring Machinery
used in the Manufacture of Boots and Shoes.
I, WILLIAM ROBERT MUDD of Newarke Street, Leicester, Engineer and
Machinist, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention has reference to burnishing and paring machinery used in the
'

page_text: The object of the invention is (1) to provide mechanism for automatically
moving the jack carrying the boot or shoe during the operation of burnishing or
paring and (2) to provide improved mechanism for operating the shaft carrying
the burnishing or paring tool so as to impart the requisite rocking motion thereto.
In order to clearly illustrate the invention reference is made to the accompanying
drawings shewing the invention applied to a burnishing machine, although the
said invention is equally applicable to paring machines.
Figure 1 is a side elevation of a burnishing machine having my improvements
embodied therein.
Figure 2 is a horizontal section on the line of Figure 1.
Figure 3 is a view partly in elevation and partly in section of the operating
mechanism within the pedestal.
Figure 4 is a horizontal section on the line Y Y of Figure 1.
Figure 5 is a cross-section of the screw and sleeve which oscillate the shaft
carrying the burnishing tool.
Figure 6 is a view partly in longitudinal section and partly in elevation of the
said screw, sleeve and bearing and
Figure 7 is a cross-section thereof on the line W W of Figure 6.
Figure 8 is a cross-section and Figure 9 an elevation of the spur wheel and the
sliding plate thereon.
Figure 10 is a section on the line X X of Figure 1.
In order for the jack to automatically present the heel of a boot o: shoe to the
burnishing or paring tool so that the whole surface of the heel shall be operated
upon, it is necessary for the jack to travel to and fro horizontally, a distance
equivalent to the height of the heel, and to be raised and lowered somewhat
according to the shape of the heel.
This movement of the jack A. is obtained by attaching it to a horizontally
reciprocating shaft B through the medium of a connecting link A¹, Figures 1
and 2, pivotted at one end to the jack and furnished with a jaw at its opposite end
to engage a pin or projection B' on the shaft B.
The shaft B has bearings B2 and B³ in each side of the pedestal C and in order
to admit of a reciprocating motion being imparted thereto it has fixed at a con-
venient point in its length an adjustable collar D, Figures 1 and 2, furnished with
a pin or projection D' which enters a slot E¹ in the upper end of a rocking lever E
eccentrically connected to the spur wheel F gearing with the pinion G¹ on the
shaft G having bearings in the sides of the pedestal C and operated by means of
a spur wheel G² engaging the teeth of the pinion G³ carried on the driving shaft G*,
Figure 3.
The pin or stud F which is located within the slot E² in the lower end of the
lever E is fixed on a plate F2 adjustable on the face of the spur wheel F in a
direction transverse to its axis of rotation, as most clearly shewn in Figures 8
and 9, so that it may be placed nearer to or farther from the centre of the wheel F
for the purpose of varying the stroke of the lever E as desired, the said plate
being fixed in position on the spur wheel F by a screw F³ passing through a slot
in the latter and into the said plate.
In order to vary the position of the jack A relatively to the burnishing tool H',
the stroke of the horizontal shaft B is increased or shortened by raising or lowering
the vertical slotted lever E.
To enable this to be done the said lever E is pivotted to an arm E³ mounted on
a shaft J, Figures 1 and 2, having bearings in the pedestal C and carrying on its
end a quadrant or segment of a worm wheel J' actuated by a hand set screw J2 J3
supported in the boss or bearing C¹ or by equivalent means.
The turning of the screw J³ communicates motion to the quadrant J¹ and shaft J,
and the arm E3 on the latter will raise or lower the lever E to any pre-determined
point in the range of the slot E¹.
The raising or lowering of the jack is effected by mounting on the shaft K a
cam L which revolves therewith.

page_text: The shape of the said cam is determined by the shape of the boot heel to be
treated, and such cam may be removed and another substituted for it of a different
shape, when it is desired to operate upon heels of a different contour and for
which the cam in use is unsuitable.
The revolving cam L is in frictional contact with a roller M' on the upper end
of a vertical rod M moving in a guide M² formed on the side of the pedestal C,
and pivotally connected at its lower end to an arm N' secured on the shaft N by
means of the screw N2, (Figures 1 and 4,) or equivalent.
The shaft N has also fixed centrally thereon an arm which passes through
an opening C2 in the pedestal C and is flattened at its forward end so that the
post A of the jack A may rest and be supported thereon.
The lower end of the post A2 is reduced in diameter to fit into a tubular block P
movably supported on the axial studs or projections P₁ passing through an opening
in each of the arms P2, Figures 1 and 10, to allow the block P to move on its
axis when the jack is either reciprocated under the action of the horizontal shaft B
or raised or lowered by the influence of the arm O actuated by the cam L through
the medium of the rod M and arm N' as before described.
The position of the jack in relation to the usual guide R in which it has a to
and fro movement may be regulated either by means of a hand wheel A³ engaging
the screw-threaded lower portion of the post A2 or by the screw-bolt At the head
of which is supported on the flat end of the arm O and the opposite end of which
is received into the reduced lower end of the said post A2, Figures 1 and 10.
The weight of the jack is sufficient to retain the said jack in its lowered
position as shewn in Figure 1 and to maintain the roller M' on the rod M in
frictional contact with the cam L so that the latter in revolving will intermittently
lower the rod M and thereby raise the jack A for the purpose herein before
referred to.
The invention also includes improved mechanism for operating the shaft carrying
the burnishing or paring tool, to impart the necessary rocking motion thereto.
His the usual rocking shaft which carries the burnishing tool H¹, and the
requisite motion is obtained by a quick-threaded screw or worm S fixed thereon by
a key S² or equivalent means and having preferably a pitch of 5 inches or there-
abouts, as shewn most clearly in Figure 6. The screw S and shaft H, are operated
by a horizontally reciprocating sleeve S₁ fitting over and internally threaded to
correspond with the said screw, or equivalent means.
The sleeve S moves in the bearing T and is operated by links U connected at
one end by screw-bolts U₁ to each side of a collar V formed on the end of the
sleeve S¹ the opposite ends of the said links being connected in a similar manner to
one arm of a beli-crank-lever V₁ the other arm of which engages a piñ V2 on the
disc V3 secured on the driving shaft.
So far the invention has been described in connection with burnishing machines,
but as is well known a boot carrying jack and a rocking shaft such as carries and
operates the burnishing tool and as hereinbefore referred to are employed in paring
machines which trim and pare the heels for the subsequent burnishing and finishing
process, the improved mechanism therefore described in the foregoing Specification
and shewn in the accompanying drawings is equally applicable to such paring
machines and such application forms part of the present invention.
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 :-
1. In a boot and shoe burnishing or paring machine the combination with the
boot carrying jack of a horizontally reciprocating shaft such as B and an
adjustable slotted lever such as E substantially as described and illustrated in the
accompanying drawings.
2. In a boot and shoe burnishing or paring machine the combination with the
boot carrying jack of a horizontally reciprocating shaft such as B adjustable slotted

page_text: lever such as E and spur wheel such as F having on its face a plate F2 and crank
pin or projection F adjustable in a direction transverse to the axis of rotation,
substantially as and for the purpose described and illustrated in the accompanying
drawings.
•
3. In a boot and shoe burnishing or paring machine the adjustable slotted lever E
substantially as described and illustrated in the accompanying drawings.
4. In a boot and shoe burnishing or paring machine the combination with a
horizontally reciprocating shaft such as B connected to the boot or shoe carrying
jack and a slotted lever such as E of an arm E³, shaft J, quadrant J and hand
adjusting screw J2 J3 substantially as and operating in the manner and for the
purpose herein described and illustrated in the accompanying drawings.
5. In a boot and shoe burnishing or paring machine the combination with the
boot-carrying jack of a cam such as L for automatically raising and lowering the
said boot-carrying jack.
6. In a boot and shoe burnishing or paring machine the combination with the
boot-carrying jack of a revolving cam such as L roller M', rod M, arm N', shaft N
and arm substantially as and operating in the manner and for the purpose
described and illustrated in the accompanying drawings.
7: In a boot and shoe burnishing or paring machine the combination with the
tool operating shaft H of a screw such as S fixed thereon, and a reciprocating
sleeve such as S¹ operating substantially as and for the purpose herein described
and illustrated in the accompanying drawings.
8. The combination and arrangement of parts constituting the complete boot
and shoe burnishing or paring machine substantially as described and illustrated in
the accompanying drawings.
Dated this 15th day of August 1891.
WILLIAM ROBERT MUDD.
W. P. Thompson & Boult,
Agents for the Applicant.