AN IMPROVED STOP MOTION FOR VERTICAL SPINDLE WINDING FUIMEQ
Year: 1879

page_text: LETTERS PATENT to Benjamin Alfred Dobson, of the Firm of Messieurs Dobson
and Barlow, of Bolton, in the County of Lancaster, Machine Maker, for the
Invention of "AN IMPROVED STOP MOTION FOR VERTICAL SPINDLE WINDING
FUIMEQ"
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson at'
the Office of the Commissioners of Patents on the 23rd October 1879.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker. AN IMPROVED STOP
MOTION FOR VERTICAL SPINDLE WINDING FRAMES."
"
My Invention consists in an improved method of releasing the friction block
when it has been thrown out of gear by the stop motion lever. It is necessary in
machines of the present construction, when the friction block has been raised by
the tumbler lever on to the steel plate, to turn the friction block partly round by
hand, and so raise the pin that holds it out of gear above the stop piece on the steel
plate, and thus let the friction block drop into gear by moving the pin beyond the
steel plate.
Now my Invention consists in mounting the steel plate on a weighted lever
hinged on a bracket under the snug rail, one end of which lever comes up between
the drag board and the bobbin rail, and when pulled back by a slight pressure of
the operative's finger it draws the steel plate from under the pin in the friction
block, and allows the friction block to drop into gear.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Benjamin Alfred Dobson in the Great Seal Patent Office on the
22nd April 1880.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker. "AN IMPROVED STOP
MOTION FOR VERTICAL SPINDLE WINDING FRAMES."
My Invention consists in an improved method of releasing the friction block
when it has been thrown out of gear by the stop motion lever; and in order that it
may be fully understood I will describe the accompanying Sheet of Drawings,
reference being had to the figures and letters marked thereon.
Fig. 1 is a.side elevation, partly in section, and Fig. 2 is a plan of part of a
vertical spindle winding frame to which my Invention is applied. a is the friction
disc; b is the friction block; b', the pin; and c is the tumbler lever, all of which are
made as usual; d is the steel plate with a stop piece d' mounted on the weighted
lever e, hinged on the bracket f; one end of the weighted lever marked e¹ comes
up between the drag board and the bobbin rail.
The mode of operation is as follows:-When the friction block b has been raised
on to the steel plate d by the tumbler lever c, and it is desired to start the machine,
instead of lifting the pin b¹ over the stop piece d¹ to allow the friction block to drop
into gear, the operative pulls back the weighted lever e by a slight pressure of the
finger at e', and thus draws the steel plate d from under the pin 6', and the friction
block b drops into gear.
Having thus stated the nature of my Invention, and described the manner of
performing the same, I declare that I claim, withdrawing the steel plate from under
the pin on the friction block to allow it to drop into gear, and the mechanism for
effecting the same, substantially as shewn and described.
In witness whereof I, the said Benjamin Alfred Dobson, have hereunto set my
hand and seal, this Twentieth day of April, One thousand eight hundred and
eighty.
BEN. ALF. DOBSON. (L.S.)