Year: 1887

page_text: Date of Application, 8th Sept., 1887
Complete Left, 19th Mar., 1888
Complete Accepted, 4th May, 1888
I FREDRICK TAYLOR of 53 St. Anns Well Road, in the Town and County of the
Town of Nottingham Machinist do hereby declare the nature of this invention to be
as follows:-
The object of this Invention is to reduce the friction of such bearings as the
fly wheel bearing, the connecting rod ends and the treadle bearings of sewing machine
stands.
In carrying my Invention into effect I first make recesses-one at each side-in
the hole of the fly wheel, these recesses are made half circular to suit convenient balls
and are larger in diameter than the parallel bore of the hole. The axle for the same
is provided with a hardened cone bush which is drove on or pegged to it. Another
hardened cone bush is made to screw on the axle with its cone face opposite to that of
the first named bush, and a suitable lock nut at the back of it to secure it when in
proper position. The bearing balls run between the recesses in the fly wheel, and on
the hardened cone bushes. The axle is secured to the side of the frame in the usual
way, and the fly wheel may run inside or outside the stand as may be required.
The bearings for the treadle are similar in detail to those for the fly wheel.
The connecting rod ends are each recessed out half circular to receive the balls-
a single race for each end-The axles are provided with cones similar to the afore-
mentioned but instead of the cones being one at each end of the bearing and acting
singly with each race of balls, one cone is fixed on each side of the single race, thus
making the bearing equally secure and light running.
Dated this 7th day of Santamber 1887
ALF. H. DAVIES, M. Inst. M.E.,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Bearings Employed in Sewing Machine Stands.
I, FREDERICK TAYLOR of No. 53 St. Anns Well Road in the Town and County
of the Town of Nottingham 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:-
The object of my Invention is to reduce the friction of such bearings as those of
the fly wheel, the connecting rod ends and the treadle as employed in the ordinary
sewing machine stands.
In a machine having the fly-wheel on the inside of the stand I arrange my improve-
ments as follows:-Each side of the hole of the fly-wheel is recessed out larger in
diameter than the bore, and the corner of the recess made to correspond with the
radius of the balls employed. An axle, formed with a cone under the head is screwed
part of its length, a second cone is made to take on the screwed part of this axle and
has a pin or peg secured on its opposite side for the purpose of keeping the same
in position as hereinafter described: the head of the aforementioned axle is provided
with a slot for a screw driver or other suitable means to permit of being screwed
up. The faces of the cones-which are hardened-are placed opposite. A suitable
number of small balls are inserted in each of the recesses of the wheel, each race
take their bearings on the face of the cone and the corner of the recess: the axle is
secured to the boss of the machine stand by a lock nut on the outer side, and the
loose cone is prevented from moving by the pin thereon which is received in a hole
on the face of the boss and as illustrated in the Drawings hereinafter described.
A ready and suitable means for adjustment with wear is provided.
In a machine having the fly-wheel on the outer side of the stand, I arrange my
improved bearing for the same as follows:-The sides of the boss or bearing of the
stand are recessed out in similar manner to the foregoing as described for the fly-
wheel the axle has formed with it or screwed thereon-the ordinary crank the
inside of the boss of the same is formed as a cone, the other cone is formed on the
inner face of the fly wheel boss the opposite end of the axle is screwed for lock nuts :
the fly-wheel is secured to the said axle by set screws. When the balls are inserted
in the recesses the bearing is secured by the lock nuts on the outer face of the fly
wheel boss.
The connecting rod ends are each recessed out half circular, suitable for the balls
to be employed, an axle similar in detail to the one as herein described for use in
a machine having the wheel on the inside may be employed, or, the one illustrated in
Fig. 4 of the Drawings annexed hereto.
In both cases the balls take their bearings upon each of the faces of the cones
and the recess formed in the end of the connecting rod, a simple and easy means for
adjustment is provided.
When it is required to apply my improvements to the treadle I effect the same by
recessing out each end of the treadle bearing in similar manner as herein afor

page_text: described for the fly-wheel and the stand. A cone is secured at each side and the
balls take their bearings on the faces of the same and in the recesses.
In order that my Invention may be fully understood I will now proceed to describe
the Drawings hereto annexed.
The same letters of reference indicate corresponding parts in all the figures.
Fig. 1. shows a general arrangement of my improvements as applied to all the
bearings of a sewing machine stand the fly wheel being on the outside.
Fig. 2. shows part of stand and sections of fly-wheel and connecting rod end;
the fly-wheel on the inside of stand..
Fig. 3. is a part section of fly wheel and stand-full size-and
Fig. 4 is a section of connecting rod end-full size.
A is part of machine stand, B the fly wheel, C the connecting rod and D tho
treadle.
E in Fig. 1 is the fly wheel axle, (e) the cone formed thereon (e¹) the cone formed
on the face of the fly wheel boss, (a) the recess in the stand and (a) the balls, F are
lock nuts to secure the bearing. The fly-wheel is made fast to the axle E after the
bearing has been adjusted by the set screw (b). The connecting rod axle f is screwed
in the crank G and is locked at the back by the lock nut (6¹): the cone C is also
screwed on the said axle and the cone C₁ is formed with it, the slot (d) is for a screw
driver when adjusting the bearing, which is effected by first slackening the lock
nut (6) and slightly turning the axle, after which the axle is again locked. (d) is
the recess in the end of the connecting rod, and (1) are the balls. The lower end of
the connecting rod which takes on to the treadle axle is the same in all details as the
top end. D is the treadle with bearings at (h) and (¹) I and I¹ are the cones which
are secured in position by the set screws (2) and (i).
In Fig. 3 which is a full size view of Fig. 2, J is the axle, K the cone formed
on the same, and L the loose cone which is provided with a peg at (k) in the boss of
the stand to prevent the same from moving. The balls M are shown in position in
the recesses N and N¹ the axle is secured to the stand by the nut O.
In Fig. 4 which is a full size section of connecting rod end, the axle P is
provided with a collar Q the hole (m) being for a tommy when fastening the axle in
position. R is a hardened cone which is locked up to the collar Q. S is an adjustable
hardened cone and T the lock nut. (n) are slots cut in the nut T and the cone S to
receive a key when adjusting the bearing. U is the recess in the connecting rod end
and V are the balls.
From the foregoing it will be seen that my improvements are of a simple and
effective nature, and that a machine so constructed will run easily and require little
power.
These improvements can be applied to existing machine stands.
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
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 15:―
I am aware that ball bearings have been and are used in machines of various
descriptions I therefore do not claim such bearings in themselves but what I
claim is :-
The application of the bearings as are herein described and illustrated to the bearings
nployed in sewing machine stands.
Dated this 17th day of March 1888.
ALFRED H. DAVIES, M. Inst. M.E.,
Agent for the Applicant.