Improvements in and Connected with Hand and Machine Tools for Tightening up Spokes, Drilling, Tapping and the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in and Connected with Hand and Machine Tools for
Tightening up Spokes, Drilling, Tapping and the like.
I, JOHN HENRY PLAYER, 5, Wren Street, Coventry, in the County of Warwick,
Tool-maker, do hereby declare the nature of my said invention to be as follows:-
My invention has for its object improvements in or connected with hand and
machine tools by which I can indicate when sufficient strain has been put upon
the tool and also when using my tool for tightening spokes when sufficient tension
has been put upon each spoke in building up a wheel.
In carrying my invention into practice I form the outer part of my tool or spoke
tension gauge hollow with a recess in the top into which I insert a disc with a hole
formed in the centre and into this hole I fit the shank or under part of an
eccentric. This eccentric, which is secured by a set screw or other means, to the
disc in which it fits, has a square or other shaped hole in the centre, and a slot
running the whole length of the tool communicates from the outer case to this hole.
I then place a suitably shaped spring around part of the eccentric for holding it in
position, one end of which bears against the inner side of the recessed part of the
outer case and the other end passes out through a hole formed in the outer case and
is secured thereto. A cap is then secured to the top of the outer case for holding
the parts together.
It will be easily understood that when sufficient tension has been put upon the
spoke, the nipple of which fits into the square hole in the eccentric, that the
eccentric and the disc in which it fits will turn round in the outer cover, thus indi-
cating that the spoke has been adjusted to the required tension.
When using my tension gauge for drills, taps and such like purpose I form a
shank at one end of the outer case or cover which fits into the drilling machine,
lathe or other machine tool and I also provide anti-friction balls for reducing the
friction and the wear and tear of the parts as they revolve.
Dated this Second day of March 1807
improvements in and Connected with Hand and Machine Tools for
Tightening up Spokes, Drilling, Tapping and the like.
I, JOHN HENRY PLAYER, of 5, Wren Street, Coventry, in the County of Warwick,
Cycle Manufacturer, do hereby declare the nature of my said invention and in what
[Price 8d.1

page_text: 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 improvements in or connected with hand and
machine tools by which I can indicate when sufficient strain has been put upon the
tool and also when using my tool for tightening spokes when sufficient tension has
been put upon each spoke in building up a wheel.
In carrying my invention into practice I form the outer part of my tool or spoke
tension gauge
hollow with a recess in the top into which I insert a disc with a hole
formed in the centre and into this hole I fit the shank or under part of an eccentric.
This eccentric which is secured by a set screw or other means to the disc in which it
fits has a square or other shaped hole in the centre and a slot running the whole
length of the tool communicates from the outer case to this hole. I then place a
suitably shaped spring around part of the eccentric for holding it in position, one
end of which bears against the inner side of the recessed part of the outer case and
the other end passes out through a hole formed in the outer case and is secured
thereto. A cap is then secured to the top of the outer case for holding the parts
together.
It will be easily understood that when sufficient tension has been put upon the
spoke the nipple of which fits into the square hole in the eccentric that the
eccentric and the disc in which it fits will turn round in the outer cover thus indi-
cating that the spoke has been adjusted to the required tension.
When using my tension gauge for drills taps and such like purposes I form a
shank at one end of the outer case or cover which fits into the drilling machine
lathe or other machine tool and I also provide anti-friction balls for reducing the
friction and the wear and tear of the parts as they revolve.
In order that my invention may be more clearly understood and easily carried
into practical effect I have appended hereunto two double sized sheets of drawings
upon which I have illustrated examples of my improved tool.
Figure 1 is a complete view of my hand tension tool for tightening spokes.
Figure 2 is a part sectional view of Figure 1.
Figure 3 is an end view of Figure 1.
Figure 4 is an end view of Figure 1 with the cap B removed.
Figure 5 is an internal view of the cap B.
Figure 6 is a complete view of my machine tension tool for tightening spokes.
Figure 7 is a part sectional view of Figure 6.
Figure 8 is a view of another form of my hand tension tool.
Figure 9 is a sectional view of Figure 8.
Figure 10 is a plan view of Figure 8 with the cap removed.
Figure 11 is a complete view of my tension tool for holding drills and the like.
Figure 12 is a sectional view of Figure 11.
Figure 13 is a plan view of Figure 11 with the cap removed.
Figure 14 is a side view of the spring S.
In carrying my invention into practice I form the outer part or shell A of my tool
or spoke tension gauge hollow with the slot a¹ extending from end to end. The
upper end a³ is formed cone shape in the interior and into this end I fit the cone D,
on the base of which I form the eccentric d with the taper or conical exten-
sion This cone is provided with a hole extending from the top of the cone D
to the top of the part and this hole is square, pentagonal, or like shape at the
end. A slot is also provided which communicates with this hole. When
this cone has been fitted into the part A the spring S, as shewn at Figure 14, is
placed in position, one end of which bears against the eccentric d¹ the other end
which is provided with the projecting pieces s¹ fits into the slot f³ formed in the
reduced portion a, the projection s' bearing against the outer circumference of this
reduced portion thus firmly holding the spring in position. The cap B is now fitted
onto the reduced part a and is held in position by the screws f. This cap B is
formed with the slot 61 for the end s¹ of the spring to fit into, and this slot is pro-
vided with the cover or its equivalent for preventing the spring from being

page_text: forced out of position when using the tool. The slot 63 which corresponds with the
slot a is also provided in this cap and the hole 6+ is formed in the centre. This
hole is tapped to receive the conical bearing E the interior of which is formed
cone shaped and fits onto the conical part, the lock washer e¹ being provided so
as to lock this bearing in position.
To tighten up a spoke the tool is passed onto the spoke by means of the slot and
pushed upwards so as to embrace the nipple when by turning the tool round and
consequently the nipple, the spoke is tightened up and immediately sufficient tension
has been obtained the strain on the cone D overcomes the tension of the spring S
thus allowing the internal parts to remain stationary thereby indicating that the
spoke has been adjusted to the required tension.
The tool as shewn at Figure 6 is intended for use in a lathe or the like and
consists of the outer case which is formed in two parts F and F¹. The part F
which is hollow is provided with the central extending portion fl so as to fit the
tool into a lathe or the like the interior of which forms the half ball 'race for
the balls When the balls are placed in position I fit the cone m¹ which is
attached to or forms part of the mandril M into the part F also. The spring S
is then placed in position the end s fitting into the slot f³ in a similar manner as
shewn at Figure 4, the other end bearing against the eccentric m² formed on the
mandril under the cone. The other portion F1 of the case is now fitted, onto the
part F, the mandril M passing through a hole formed in the adjusting cone f*
which screws into a hole formed in the centre of the part F, the lock nut f5 being
provided for holding this cone in position. The parts F and F are held together
by the screws f. The end of the mandrel is formed with the projection m³ which
fits into the slot formed in the head of the nipple N as shewn at Figure 6. This
end is also provided with the shoulders m and m5 one of which is higher than the
other, the head of the nipple being formed to correspond. By this means prevent
the end of the mandril from damaging the head of the spoke when revolving at a
high speed and the slot in the nipple is not exactly opposite the part m³.
To tighten up a spoke the tool is fixed in position in the machine and the end
of the mandril inserted into the slot in the head of the nipple as shewn at Figure 6,
which, when the mandril revolves is tightened up until the necessary tension is
obtained when the strain on the mandril will overcome the tension of the spring S
thus allowing the outer case to revolve, whilst the mandril remains stationary
thereby indicating that sufficient tension has been put upon the spoke. The
mandril may be milled on a portion of its length so as to enable the attendant to
better ascertain when it is revolving.
At Figures 8, 9 and 10 I have shewn a modified form of my hand tool. In this
case I form the outer hollow case H with the slot h' running from end to end, .
and the recessed part h³ at one end, into which I insert the disc h³ with a hole in its
centre, and into this hole I fit the shank or under part of the eccentric J which is
backed to the disc by the screw . Formed in the centre of this eccentric is the
square, pentagonal or like shaped hole j³, and a slot is formed in this and also in the
disc h³ which communicates with the slot h¹. I then place the spring K around a portion
of the eccentric, one end of which is fixed in a slot formed in the case H, and in the
cap L, the other end bearing against the inner side of the recessed part has
clearly shewn at Figure 10. The cap L is now fitted on the top and held in
position by the screws 11 as clearly shewn at Figure 9.
It will easily be understood that when sufficient tension has been put upon the
spoke V the nipple V₁ of which fits into the hole in the eccentric that the strain on
the disc and the eccentric will overcome the tension of the spring K thus allowing
the case H to revolve without the internal parts J thereby indicating that the spoke
has been adjusted to the required tension.
At Figures 11, 12 and 13 I have shewn my tension tool for use with drills taps,
and such like purposes. In this case I form the outer case P with the shank pi
at one end which fits into the drilling machine or the like and in the interior I fit
the hollow bush, and between the inner end of this push and the interior of the

page_text: case I place one or more antifriction balls 23. I then fit inside this hollow bush
another hollow bush 2 which is secured to the bush 3 by the screw 2, and on the
end of the bush 2 which protrudes beyond the bush på I form the eccentric 26.
The spring is then placed partially around this eccentric one end of which bears
against the interior of the case P' the other end being in a slot formed the outer
case as clearly shewn at Figure 13. The cap T is formed with a ball race for
the balls which form an antifrictional bearing for the bush 2, and this cap
is provided with a hole in the centre and is fixed to the outer case by the screws 3.
It will readily be understood that when the screw tap or the like is inserted into
the bush p and locked in position by the screw that if the strain on the screw
tap becomes too great it will overcome the tension of the spring p' thus allowing
the outer case to revolve without the internal parts and preventing the drill from
being broken.
i
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is: -
CLAIMS.
First: A tool for tightening spokes consisting essentially of the slotted cone
such as D, with an eccentric such as and the coned end 2, a spring such as S a
conical bearing such as E in combination with the slotted case such as A and
slotted cap such as B, operated in the manner and for the purpose substantially as
herein set forth and as shewn at Figures 1, 2, 3, 4 5 and 14.
Second: A tool for tightening spokes consisting essentially of the mandril such
as M, mounted on ball bearings and having an eccentric such as m², a spring such
as S, an adjusting cone such as f* all enclosed in the casing such as F and Fi
and operated in the manner and for the purpose substantially as herein set forth
and as shewn at. Figures 67 and 14.
Third: A tool for tightening spokes consisting essentially of the slotted eccentric
such as J fitted into the disc h³ a spring such as K in combination with the slotted
case such as H and slotted cover such as L operated in the manner and for the
purpose substantially as herein set forth and as shewn at Figures 8, 9 and 10.
purpose
Fourth A tension tool consisting essentially of the eccentric such as po formed
on the end of the inner bush such as 2*, mounted on ball bearings, an outer bush
such as working on ball bearings, a spring such as 77 in combination with the
case such as P and cover such as T operated in the manner and for the
substantially as herein set forth and as shewn at Figures 11, 12, and 13.
Fifth-A tightening tool or device which becomes the measure of the tension
which can be applied to the spoke substantially as herein set forth and as shewn
upon the drawings.
Dated this lat dose of Tane1000
3
3
GEORGE BARKER,
Agent for Applicant, 77, Colmore Row, Birmingham. ¨