Year: 1887

page_text: Date of Application, 1st June, 1887
Complete Left, 1st Mar., 1888
Complete Accepted, 6th Apr., 1888
I, WILLIAM SAMUEL OLIVER of Albert House St. Pauls Road Canonbury in the
County of Middlesex do hereby declare the nature of this invention to be as
follows:-
My invention relates to a cheap and simple construction of chain stitch sewing
machine of the following kind.
Two horizontal spindles the one extending along the goose neck and the other one
under the table are connected by chain or other gear so as to revolve at the same
speed and in the same direction. The lower spindle carries a revolving looper under
the table, the upper spindle has at its end a crank with a revolving boss in which is
fixed the upper end of the needle. The needle in its lower part passes through a hole
in a guide bracket which can be adjusted higher or lower on the downwardly
projecting end of the goose neck which carries also a spring presser foot. When the
spindles are caused to revolve by a winch handle or otherwise, the needle is caused by
the crank not only to ascend and descend through the fabric but also to oscillate
laterally in such a manner as to make the fabric advance during every down stroke
while the needle is in it, a distance determined by the greater or less height to which
the guide bracket is adjusted. At the same time the looper under the table acts in
the usual way to form the loops for chain stitch.
1007
ABEL & IMRAY,
Agents for the Applicant.

page_text: I, WILLIAM SAMUEL OLIVER of Albert House, St. Pauls Road, Canonbury in the
County of Middlesex 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 relates to a cheap and simple construction of chain stitch sewing
machine as I will describe referring to the accompanying drawings.
Fig. 1 is a side view.
Fig. 2 is a front view.
The frame consisting of the base A supporting the table B, the rear upright A' the
goose neck A² and its downwardly projecting foot A³ are all in one piece of metal
cast or stamped. In bearings bored in the base is mounted a horizontal spindle C
having at its one end a revolving looper C and at its other end a chain pinion C². In
bearings bored in the goose neck is mounted another horizontal spindle D having at
its one end a disc D₁ and at its other end a chain pinion D2 of the same diameter
as C. The two pinions C2D2 are connected by a chain so that when the upper
spindle D is caused to revolve by turning a winch handle D³ or otherwise, the lower
spindle is made to revolve at the same speed and in the same direction. Obviously
the two spindles might be connected otherwise than by the chain. For example each
spindle might have a toothed pinion gearing with an intermediate wheel mounted on
the upright A' as in many existing sewing machines.
The revolving looper acts in the usual way, seizing a loop of the needle thread
while the needle is down, and retaining that loop so that the needle on its next
descent passes through it.
The disc D₁ has pivotted in it eccentrically a boss E free to revolve and in a
transverse hole through this boss is held by a setting screw the upper end of the
needle E which is made as shewn with a strong shank. The lower part of the
needle E passes freely through a hole in a bracket F that can be slid a little up or
down on the foot A³ of the goose neck and fixed where desired by a setting screw F¹.
The presser foot G is fitted to slide jvertically on the foot A3 and is pressed down by a
spring G. The spindles C and D being caused to revolve in the direction of the
arrow, the needle is made by the circular crank movement of the boss E' not only to
ascend and descend but also to oscillate transversely as its lower end is guided through
the hole in the bracket F. By this oscillating movement, the needle, after it has
penetrated the fabric and while it is still in it causes the fabric to advance a step at
every stitch, this advance being greater or less according as the bracket F is fixed in
a higher or lower position. While the needle thus moves, the looper C¹ acts with it
in the usual way to produce chain stitch.

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, 1 declare that what 1
claim is :-
1. The combination of the looper spindle C and revolving uniformly therewith the
needle driving spindle D with its eccentric boss E' holding the needle E guided by
the adjustable bracket F, substantially as described.
2. In a sewing machine, a needle having its upper end moved in a circular path by
a revolving crank or eccentric boss to which it is attached, and its lower end guided
through a stationary hole, so that the needle, while it ascends and descends to form a
stitch, is made to oscillate transversely so as to feed the fabric onward, substantially
as described.
3. For guiding the lower end of a needle operating as described in the preceding
claim, passing it through a hole in a bracket that can be adjusted higher or lower so
as to vary the length of stitch, substantially as described.
1040
ABEL & IMRAY,
Agents for the Applicant.