Improvements in Machinery for Finishing Felt Hats.
Year: 1889

page_text: Date of Application, 1st Nov., 1889
Complete Specification Left, 1st Aug., 1890-Accepted, 13th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Finishing Felt Hats.
I, THOMAS ROWBOTHAM, of Hazel Grove, near Stockport, in the County of
Chester, Hat Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to Improvements in Finishing Felt Hats and the object of my
improvements is to overcome the difficulty hitherto experienced in applying to the side
surface of the hat body revolving with an oval block the emery paper veluring pad or
other agent employed in the finishing operations.
As now customary the felt hat body after having been pressed is placed in what is
called the lathe" upon an oval block fitted on pegs fixed on the top plate or bed to
which a rotatory motion is imparted by friction discs or other means and it will be
readily understood that as the block is oval it is impossible to apply a uniform pressure
to the sides of the hat body revolving with the said block.
My improvements consist then in imparting to the oval block in addition to the
ordinary rotatory motion a sliding motion to and from the centre of the top plate of
the lathe this sliding motion being so regulated that the emery paper or equivalent in
the hand of the operative can be held stationary or nearly so at one point and will yet
remain in constant contact with the side surface of the hat as the latter revolves.
A convenient mode of effecting this is to mount the oval block upon movable pegs
or projections fitted in slots or slideways in or on the revolving top plate of the lathe.
One of these pegs passes through the top plate and a bowl on its lower end works in a
suitably shaped groove or cam path formed on an adjustable cam plate or part so as
the oval block revolves it is also caused to move to and from the centre of the top
plate as described. I also arrange that the cam plate can be adjusted so as to stop the
sliding movement while finishing the top central portion of the hat crown.
Dated this 31st day of October 1889.
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Machinery for Finishing Felt Hats.
I, THOMAS ROWBOTHAM, of Hazel Grove, near Stockport in the County of Chester,
Hat 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 :-
:-
My invention relates to Improvements in Finishing Felt Hats and the object of my
improvements is to overcome the difficulty hitherto experienced in applying to the
side surface of the hat body revolving with an oval block the emery paper veluring
pad or other agent employed in the finishing operations.
As now customary the felt hat body after having been pressed is placed in what is
called the "lathe" upon an oval block fitted on pegs fixed on the top plate or bed to
which a rotatory motion is imparted by friction discs or other means and it will be
readily understood that as the block is oval it is impossible to apply a uniform pressure
to the sides of the hat body revolving with the said block.
My improvements consist then in imparting to the oval block in addition to the
ordinary rotatory motion a sliding motion to and from the centre of the top plate of
the lathe this sliding motion being so regulated that the emery paper or equivalent in
the hand of the operative can be held stationary or nearly so at one point and will yet
remain in constant contact with the side surface of the hat as the latter revolves.
CD

page_text: And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to the
figures and letters marked thereon.
Figure 1 is a sectional elevation of part of a hatter's lathe to which my improvements
have been applied.
Fig. 2 is a plan of the same with the oval block removed and
Fig. 3 is a plan with the top plate removed.
C.
In these views a is the bench or table upon which is fixed the bed plate of the
hatter's lathe. On the bed plate is mounted the top plate c to which rotatory
motion is imparted by means of the shaft d which is driven by friction dises not.
shown or equivalent means in the ordinary or any convenient manner. On the so
called top plate c is mounted a smaller plate e which is provided with four pegs or
projecting studs upon which the oval hat block g is placed. Two of the studs fare
prolonged downward passing through radial slots e¹ in the top plate c and having flat
plates or feet f¹ secured upon their lower extremities to retain the plate e in position
whilst leaving it free to be moved to and from the centre of the top plate Small
rollers are preferably mounted upon the studs to diminish friction and insure
smooth and free movement in the slots cl. One of the studs is prolonged downward
further than the other and has a bowl i which lies in a circular groove ¹ in an
adjustable cam plate k which is fitted in slideways on the bed plate b. By means
of an adjusting screw the groove k² of the cam plate & can be set either concentrically
or eccentrically to the shaft d and can then be locked in either position by means of the
screwed stud or lock bolt m. On the bench a below the bed plate is the usual stop
motion lever n and cam plate o by means of which the shaft d can be raised out of
contact with the friction disc or equivalent by which it is driven in order to stop the
rotation of the stop plate c.
In operation the groove of the cam plate is set eccentrically to the shaft d the
hat to be finished is placed upon the oval block g and the lathe is started by operating
the lever n so that as the oval block g revolves it is also by means of the groove
bowl and stud f caused to move in the radial slots c¹ to and from the centre of the
top plate c, this sliding motion being so regulated that the emery paper veluring pad
or other agent can be held stationary or nearly so while the side surface of the hat is
being finished.
Before finishing the top central portion of the hat crown the cam plate k is adjusted
so as to set the groove concentrically with the top plate c whereby no sliding
movement but only the ordinary rotatory motion is imparted to the oval block J.
Instead of the screw a troadle and suitable connections might be employed for
adjusting the cam plate k.
It will be readily understood that various modifications in the details of the
mechanism might be made without departing from the nature of my invention which
consists essentially in imparting a sliding movement to the oval hat block in addition
to the ordinary rotatory motion.
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 is :-
1. Imparting to the oval hat block in addition to the ordinary rotatory motion a
sliding movement to and from the centre of the top plate of a hatter's lathe for the
purpose specified.
2. The combined arrangement of parts for imparting a compound sliding and
rotatory motion to the oval block of a hatter's lathe substantially as and for the
purposes herein described and as illustrated by the drawings annexed.
Dated this 31st day of July 1890
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.