Improvements in or relating to Emery Wheels, and in the means of Securing them to their Spindles.
Year: 1897

page_text: Date of Application, 2nd Nov., 1897
Complete Specification Left, 8th June, 1898--Accepted, 9th July, 1898
Improvements in or relating to Emery Wheels, and in the means of
Securing them to their Spindles.
I, DAVID BLISS HYDE, of 422, South Fountain Avenue, Springfield, State of
Ohio, United States of America, Emery Wheel Manufacturer, do hereby declare
the nature of this invention to be as follows:-
This invention relates to means or appliances in conjunction with certain shapes
of emery or like wheels exterior surfaces, that said wheels can be held more securely
upon their spindles whereby the tendency to fly from fracture or other cause is
reduced to a minimum or entirely obviated.
For the purpose of my said invention, I make the wheel proper of tapered form
from a short distance from the centre eye to the periphery, or I form annular
shoulders near the centre eye if the periphery has to be kept wide.
For the first recited plan, I employ dished washers on either side which touch
the wheel at their inner peripheral edges only, so that when tightened up by
the ordinary back washer and nut, there is a springiness left where the washers
are not in contact, the taper of the dished part being slightly greater than that of
the taper of the wheel itself.
As such a wheel wears down, it is only necessary to remove the washers and
arrange smaller ones of the same contour on the spindle and tighten up afresh,
thus the wheel can be used up to a stump.
Each washer is also tapered on its outer face from about the line where the
nuts bear to the periphery and adds to its springy character,
By the other recited plan, the washers are stepped, or have inner flanges at or
near the peripheries to engage over the shoulders of the wheels centres, the nip
being at the inner flanges only and so prevent the wheel flying, or leaving the
spindle in case of fracture, which nearly always happens at the eye and extends
outwardly and then flies-off by the centrifugal action while in use.
H.
GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said David Bliss Hyde.

page_text: Improvements in or relating to Emery Wheels, and in the means of
Securing them to their Spindles.
I, DAVID BLISS HYDE, of 422, South Fountain Avenue, Springfield, State of
Ohio, United States of America, Emery Wheel Manufacturer, 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 relates to means or appliances in conjunction with certain shapes
of emery or like wheels exterior surfaces, that said wheels can be held more securely
upon their spindles, whereby the tendency to fly from fracture or other cause is
reduced to a minimum or entirely obviated.
For the purpose of my said invention, I make the wheel proper of tapered form
from a short distance from the centre eye to the periphery, or I form annular
shoulders near the centre eye if the periphery has to be kept wide.
For the first recited plan, I employ dished washers on either side which touch
the wheel at their inner peripheral edges only, so that when tightened up by
the ordinary back washer and nut, there is a springiness left where the washers
are not in contact, the taper of the dished part being slightly greater than that of
the taper of the wheel itself.
As such a wheel wears down, it is only necessary to remove the washers and
arrange smaller ones of the same contour on the spindle and tighten up afresh,
thus the wheel can be used up to a stump.
Each washer is also tapered on its outer face from about the line where the
nuts bear to the periphery and adds to its springy character.
By the other recited plan, the washers are stepped, or have inner flanges at or
near the peripheries to engage over the shoulders of the wheels centres, the nip
being at the inner recessed faces only and so prevent the wheel flying, or leaving the
spindle in case of fracture, which nearly always happens at the eye and extends
outwardly and then flies off by the centrifugal action while in use.
My invention will be more clearly understood from the annexed drawings in
which at Figure 1 I show a taper sided emery wheel or disc A in section with my
dished or spring action tightening washers B, B', on either side and in touch
at the inner peripheries C, C, only with the wheel A, a clearance being left
between both wheel A. and washers B, B1, from that point or edge to the spindle G.
Figure 2 a similar sectional elevation of an emery wheel A with an extended
or boss like central part D, D', on either side and having shoulders E, E, against
both of which, the flange ring like portions F, F, of shaped washers B, B¹, have
a bearing, the adjoining or step ends F, F, of the washers B, B1, being free.
In both these figures, the wheels A, A, are mounted loosely on the spindles G
and are clamped tight by a running nut H which by the intercepting collar I
fills up the gap that would otherwise be left between the threaded end of such a
spindle G and the washer B on that side of the wheel A. The other washer of the
pair is borne against by the fixed or abutting collar J which is not shown in
section for convenience, it being intact with the spindle G. K is a pin on the
spindle G to engage a slot in the washer 131 to perfect the nip of the abutting
collar Jagainst the washer B' should a drop of oil accidentally find an entrance
and which might permit of slip if the wheel A had fast rotation.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is;-
1. The construction of emery or grinding wheels with thick contral

page_text: tapered or thinner outer parts in combination with tapered washers which bear at
the periphery only against the wheel when secured on the spindle G, substantially
as and for the purpose explained with reference to Figure 1 of the annexed draw-
ings.
2. The construction of an emery or grinding wheel with thick central part and
thin peripheral part formed by the shoulder E in combination with internally
flanged washers B, B, substantially as described with reference to Figure 2 of
the annexed drawings.
The on day of June 190.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said David Bliss Hyde.