Machinery for Construction of Cycle and other Wheels.
Year: 1897

page_text: PROVISIONAL DIO
Machinery for Construction of Cycle and other Wheels.
GEORGE SKINNER, 58, Lombard Street, London, Engineer, do hereby declare the
ature of this invention to be as follows:-
My invention has for its object the trueing up of cycle and other wheels with
n equal amount of tension on all the spokes.
I wish it to be understood that I may make my invention in either of the following
yps.
1st. A machine with duplicate tool heads with their respective levers and gear
with a fixed rim table to simultaneously screw up the nipples of the wheel.
2nd. A single tool head machine with a revolving rim table.
on
DUPLICATE TOOL HEAD MACHINE.
a round bed supported on
a suitable base,
This machine consists of
with a bevel tram wheel (with teeth formed upon its periphery) revolving
The hub is held between adjustable centres in
frictional rollers.
the centre of the bed of the machine with a rim table of suitable diameter fixed
around them to receive the rim of wheel to be trued the rim table has fitted to it
suitable expanding arms to grip and true the rim the expanding arms are con-
nected by either levers or cam movements to a hand lever fixed to the body of
machine so as to simultaneously expand the rim.
I may use flanged tapered discs to expand the rim on being pressed together.
Around the edge of the bed are fixed at given distances the sensitive tool heads
with their pinions overhanging the edge of the bed and in gear with the bevel
tram wheel the spindles of the tool heads are connected by means of universal joints
to their respective tool rods which pass through adjustable bearings fixed to the bed
or rim table edge.
The tool rods consist of a spindle with a square at one end and fixed to a universal
joint at the other, the nipple has a square slot. formed in it, to receive the square
on the end of tool rod, I may make the square on the tool rod to expand to
prevent the tool from slipping out of the nipples; the body of the tool rods are
reduced at about two thirds of their travel, so as to allow of their leaving their
0 respective guide bearings, as soon as they have entered their respective nipples,
and be free to follow the inclination of their respective spokes.
I may make hinged guides or fences connected, by levers or cams to a hand lever
so as they may be simultaneously moved, to and from the rim, these guides or fences
may move either horizontally, or vertically, and cover or meet the side of the
35 nipples, with suitable bearings, or guides for tool rods. The sleeves of the tool
heads are drawn to and from the rim, by means of collars or forks, fitted between
collars on the sleeves, and connected by levers, or cams, with a spiral spring to a
lever, so as to allow of separate movement, of each sleeve, and tool rod, on
meeting its respective nipple. I may apply automatic feed gear, worked by wheel
40 gear. The sensitive tool head, consists of a bearing with suitable bases and fitted with
hollow spindles with pinions on their ends.
The sleeves having a longitudinal movement are fitted to the hollow spindles and
are caused to revolve with them, by means of a feather keys, fitted in a feather way
The sensitive gear in each sleeve, consists of a pair of clutche
leores

page_text: the spindle of one projecting through the end of sleeve, towards the centre of
machine, the opposite half, has a square threaded screw, of sharp pitch, cut on
the clutch spindle, this screws into a nut, fixed to the end of sleeve by two pillars the
Screw clutch rod has a spiral spring, placed around it with one end attached near the
clutch, the other to a sleeve (called the spring adjustment sleeve) free to revolve
on the body of the nut extending inside the sleeve, the spring adjusting sleeve has
a milled edge round the part extending outside the sleeve, and is free to revolve
between the two pillar supports, of the nut, and is kept from uncoiling by a paul in
a ratchet. wheel fixed on the spring adjusting sleeve.
A stud is screwed into the end of the screw clutch rod, for the purpose of fixing
thereon a disc, with lock nut, on the end of the sleeve, a lever with knife edge on
its outer side, and a spring to force the lever behind the disc, when the screw
passes through the nut.
The action of the sensitive tool head is as follows;
On the tension on the tool spindle (rod) becoming greater than the tension on
the spiral spring the screw clutch is withdrawn from its fellow half, by the sleeve
and nut revolving around the screw and the lever drops behind the disc preventing
the spiral spring from uncoiling and thus placing the clutches in gear again on
the hand feed lever being released a counterbalance weight causes the sleeves to
recede from the rim, and the levers come in contact with projections thus, auto-
matically placing clutches in gear again.
I may use a tool head of the following type the sleeve has a spindle fitted to it
one end connected to the universal joint of tool rod the opposite end projecting
through the end of the sleeve with a collar or flange fixed thereto the spring tension
as follows a friction lever or block is hinged to the sleeve with an adjusable spring
behind it on the tension of the spoke becoming greater than that of the spring
the lever or block would slip on the flange.
I may apply either of these types of sensitive gear to the tool rods and use a
simple spindle in the hollow spindle of the tool head free to move longitudinally.
SINGLE TOOL HEAD MACHINE WITH REVOLVING TABLE.
Upon a suitable bed I fix a tool head and tool rod as before described revolved by
any well known means with hand lever for bring tool on the nipple a revolving
rim table with centres and expanding arms for rim as described and ratchet locking
gear to prevent table turning when in line with tool suitable cam or lever gear to
adjust the height of tool rod.
This machine may be used as a rim drilling machine by fixing a drill to tool
head the ratchet wheel acting as division plate.
I test the springs with a gauge of the following type.
A piston compressing a spiral spring in a cylinder by the action of a screw on a
spindle passing through a nut formed in centre of piston.
The spindle has a recess in its end to receive square of tool rod and a ratchet
wheel with paul on cylinder end.
A scale is marked on side of cylinder.
Dated this 92nd day of January 1807
COMPLETE SPECIFICATION.
Machinery for the Construction of Cycle and other Wheels.
I, GEORGE SKINNER, of 58, Lombard Street, London, Engineer, 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:-
My invention has for its object the trueing up of cycle and other wheels with
an equal amount of tension on all the spokes.

page_text: I may make the invention in either of the two following types, namely a machine
with a rim-table, and sensitive multiple tool-heads with their respective levers
and gear to simultaneously screw up the nipples of the wheel; or a machine with
a revolving chuck and a single tool-head.
My invention in both types is delineated by the accompanying drawings in
which
Figure 1, Sheet 1. is a section of a side elevation of the machine with multiple
tool-heads, only one of which is shown by the drawing.
Figure 2 Sheet 1, is a section of the tool-head.
Figure 3 Is an end view of the sensitive gear of the tool-head.
Figure 4 Is a side elevation of the spring guage for adjusting and testing the
tension of the springs of the tool-head.
Figure 5 Is a side view of the spindle to be held between the centres of the
machine to which the guage is pivoted.
Figure 6 is an end view of the guage.
Figure 7 Is a side elevation of a section of a modification of the rod which passes
into the nipple of the wheel.
Figure 8 Is an end view of the modification.
Figure 1 Sheet 2, Is a plan of the machine partly delineated by Figure 1
Sheet 1.
Figure 1. Sheet 3, Is a side elevation of the machine with a single tool-head.
Figure 1 Sheet 4, Is a plan of the same.
The machine with multiple tool-heads consists of a round frame A Figure 1
sheet 1 supported on suitable base B with a bevel-tram-wheel C which has teeth
formed upon its upper edge, and revolves on idle wheels D D.
"
The hub of the wheel to be trued is held between the adjustable centres EE.
The rim of the wheel is trued by the segments FF FF Fig. 1 sheets 1 & 2, con-
nected with the disc G by the rods GGGG Fig. 1 sheets 1 & 2 and is expanded
by the disc actuated by the lever G2 Fig. 1 sheets 1 & 2. The sensitive tool-heads G³
Figs. 1. 2. 3 sheet 1 and Fig. 1 sheet 2.
are fixed at given distances around
the edge of the frame A. There is one tool-head for each nipple of the wheel.
The spindle H Figures 1 & 2 sheet 1 of the tool-head is connected by means of
universal joints H¹ Figures 1 & 2 sheet 1, Fig. 1 sheet 2, and Fig. 1 sheet 3, to its
tool-rod, H2 Figs. 1. 2. 7. 8. sheet 1, Fig. 1 sheet 2, Fig. 1 sheet 3, and Fig. 1 sheet 4,
which revolves in the bearing H³ Figs. 1. 2. 7. 8 sheet 1, Fig. 1 sheet 2, and Fig. 1.
sheet 3. This tool-rod consists of a round spindle formed square at one end, and
tapered at its point. In the nipple of the wheel is a square hole to receive the
square on the end of the tool-rod. The bearing H³ is pivoted to the guide J Figs. 1
& 2 sheet 1, and Figure 1 sheet 2. The guide J is pivoted to the frame at K. The
spring box L Figures 1 & 2 sheet 1, and Figure 1 sheet 2 is pivoted to the guide
at L' Figures 1 & 2 sheet. 1 and Fig. 1 sheet 2, and is also pivoted to the segment M
Figure 1 sheet 1 and Figure 1 sheet 2. The segment M is connected with the disc N
by the rod N¹, and actuated by the lever N2 Figure 1 sheets 1 & 2. The tool head
has a bearing, a, Figures 1 & 2 sheet 1 and Fig. 1 sheet 2, and is fitted with a tubular
spindle a Figures 1 & 2 sheet 1 furnished with the pinion I Figs. 1 & 2 sheet 1,
and Fig. 1 sheet 2. The sleeve c Figures 1 & 2 sheet 1, having a longitudinal move-
ment is fitted to the spindle, a', and is caused, to revolve with it by means of a key
fitted in a feather way cut in the sleeve. The sensitive gear in the sleeve consists
of a pair of clutches, vl, one of which is attached to the spindle H and the other to
the rode which has a screw of sharp pitch projecting through the rear end of
the sleeve c, and screwing into the nut 9. Around the rod e is a spiral spring h,
one end of which is attached to the rod e, and the other to a small adjusting sleeve i
which revolves freely around the body of the nut g, and is kept from uncoiling by
the small pawl springing into the ratchet wheel k fixed to the bottom of the
sleeve, i. To the end of the rod, e, a disc, 1, is attached. On the flange of the nut, g,
a lever, m, is pivoted. This lever has a knife edge, n, on its outer side and is fur-
nished with a spring o, Fig. 3 sheet 1. The cam, p, Figs. 2 & 3 sheet 1, places the

page_text: .
clutch, d, in gear. The action of the tool head is as follows. On the tension o
the spoke becoming greater than the tension on the spiral spring, h, the clutch, d
is withdrawn from its fellow by the sleeve c and nut g, and the lever m drops behind
the disc thus preventing the spiral spring, h, from uncoiling and restoring the
clutch to gear. On the hand lever Na being reversed, the sleeve recedes and the
lever, m, is lifted by the cam, p, thus allowing the clutch rod, e, to spring back to
gear.
*
1
In Figure 2 sheet 1 the spring g is fixed to the bearing H3 and curved to meet the
adjustment screw r. The stop is for the purpose of adjusting the inclination
of the tool-rod H2 at a proper angle. The spring-guage, s, Figure 4 sheet 1 con-
prises a cylinder with the screw, sl, free to revolve in the bearing, 2, and to push
the nut talong the cylinder. Another screw #travelling in the slot 3 prevents
the nut from revolving with the screw, s¹. The nut compresses the spring. On
the outer end of the screw, s, is a ratchet wheel s with a projection, 5, recessed to
receive the point of the tool-rod H2. To the end of the cylinder a pawl 6 is fixed
to prevent the spring 3 from springing back. The object of the ratchet, wheel is
to prevent said spring from forcing the nut & backward and thus preventing the
reading of the spring-guage.
I may make a guard for the tool-rod H2 as follows. The rod is square and free
to slide in a box or chamber u Fig. 7 sheet 1 and is surrounded by a spiral spring
which presses against one end of the chamber and also against a collar u² fixed to
the tool-rod. The chamber is encased in a bearing H³ pivoted to the guide J.
The action of the rod is as follows. The point of the tool-rod H2 having reached the
nipple, the spring u¹ is compressed until the guard has covered the head of the
nipple, and said spring remains so compressed until the guide J is withdrawn.
The machine with a single tool-head consists of a revolving chuck A* Fig. 1
sheets 3 & 4 upon the bed B*'sheets 3 & 4. The tool-head G³ is fixed as is herein-
before described with reference to the multiple tool-head machine but a hand
lever I is used for operating the single tool head machine instead of the arrange-
ment for operating the other machine.
The furcated arms L* Figure 1 sheets 3 & 4 are fixed on the V shaped slides L*1.
The roller m* and the withdrawing pin n* fixed to said slides at their rear ends
are operated by the cam 0* attached to the telescope lever P*. The direct action
of this lever is to turn the cam in the direction of the arrow shown in Figure 1
sheet 4 so causing the roller m* to move the slide L*¹. The reverse action of the
lever causes the pin n* to travel in the slot 0*1 thus withdrawing the arm L* and
releasing the rim of the wheel trued. The rim of the wheel being expanded by the
arm L the lever P* is prevented from springing backward by the hand-locking
lever P. To prevent the chuck from turning when the lever P* is being operated
the pin R is turned by hand and springs into a hole for its reception formed in the
bottom of the chuck A. The arm C* is furnished with an ordinary poppet head C*1
Fig. 1, sheets 3 & 4. The lever I* is pivoted to the base of the tool-head G3 by the
drag-links S* Fig. 1, sheets 3 & 4 connected with the swivel joints S*1. The tool
rod H is pivoted to the lever I* by the joint D*. Power is transmitted from the
treadle to the tool-head G³ by the fly wheel E*. The chuck is simply turned
round by hand and the nipples are respectively brought in line with the tool-head
and the lever I* is moved forward so as to allow the point of the tool-rod H³ to enter
the nipples which are turned by the power transmitted from the treadle until such
time as the tension of the spring is overcome by the tension of the spoke when the
action of the tool-head as described takes place.
Having now particularly described and ascertained the nature of my
invention, and in what manner the same is to be performed I declare that what
I claim is:
1. The machinery for trueing up cycle and other wheels constructed arranged and
operated substantially as hereinbefore described and illustrated by the accompanying
drawings.

page_text: 2. In machinery for trueing up cycle and other wheels the tool-head with the
spring adjustment, clutch, and spring regulating gear constructed arranged and
operated as hereinbefore described and illustrated by the drawings.
3. The arrangement and combination of the parts of the machinery hereinbefore
described for trueing up cycle and other wheels, substantially as herein specified
and illustrated by the accompanying drawings.
00 1 1
£ Octal 1807