Improvements in Cams for Machines for Printing Fabrics.
Year: 1895

page_text: Complete Specification Left, 14th Nov., 1895-Accepted, 14th Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in Cams for Machines for Printing Fabrics.
We, WILLIAM PICKUP, and WILLIAM KNOWLES, of Orchard Street, Pendleton,
in the County of Lancaster, Engineers, do hereby declare the nature of this
invention to be as follows:-
These improvements relate to an invention for which Letters Patent No. 7288
were granted to Frederick Salis Schwabe and ourselves on April 16th 1892, for
Improvements in machines for printing fabrics."
A part of the said Letters Patent relates to a cam with variable working surface
formed in three concentric parts each having a portion of its periphery recessed and
the inner part being rendered adjustable relatively to the said outer parts so as to
shorten or lengthen the working surface of the cam as may be required, the said
outer parts being keyed onto the cam shaft.
In printing.it is necessary to vary the position of the whole of the said cam on
the cam shaft in a rotary sense, which hitherto has been effected by unkeying the
eam, setting it to the required position on the shaft by hand and keying it in such
position fast again which is a source of trouble and loss of time.
Our invention has for its object to obviate the said defects and consist in
employing the said cam instead of on the shaft itself upon a bush keyed thereon.
The said bush has on one end a shoulder formed into a worm wheel and on the
other end a thread to receive a nut whereby the cam is longitudinally kept in
position on the said bush. The shoulder formed into a worm wheel is geared with
a worm mounted in suitable brackets fixed to the respective side of the cam by
means of which worm the whole of the cam can be rotary adjusted on the bush,
i.e. on the cam shaft to a nicity.
"Dated this 12th dos of 1895
F. BOSSHARDT & Co.,
Agents to Applicants.
:
COMPLETE SPECIFICATION.
Improvements in Cams for Machines for Printing Fabrics.
We, WILLIAM PICKUP, and WILLIAM KNOWLES, of Orchard Street, Pendleton,
in th County of Lancaster, Engineers, do hereby declare the nature of this
inver ion and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
These improvements relate to an invention for which Letters Patent No. 7288,
were granted to Frederick Salis Schwabe and ourselves on April, 16th, 1892, for
Improvements in machines for printing fabrics."
A part of the said Letters Patent relates to a cam with variable working surface
formed in three concentric parts each having a portion of its periphery recessed
and the inner part being rendered adjustable relatively to the said outer parts so as
to shorten or lengthen the working surface of the cam as may be required, the said
outer parts being keyed onto the cam shaft.
tn

page_text: I
In printing it is necessary to vary the position of the whole of the said cam on
the cam shaft in a rotary sense, which bitherto has been effected by unkeying the
cam, setting it to the required position ou the shaft by hand and keying it in such
position fast again, which is a source of trouble and loss of time.
Our invention has for its object folobviate the-baid defects.
And in order that our invention may be more fully understood we have caused to
be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 is a side view and Fig 2a vertical section of our improved cam for
machines for printing fabrics.
In carrying out our invention and referring to the figures generally, we employ
the said cam a, b,c, instead of on the shaft itself, upon a bush d keyed upon the
shaft. The bush d has at one-end a shoulder d formed into a worm wheele and
at the other end, a thread to receive a nut whereby the cam a b, c,.is..longi-
tudinally kept in position on the bush d. The worm wheel e is geared with a
worm e mounted in suitable brackets h fixed to the side of the cam part à, by
means of which worm e¹ the whole cam a, b, c, can be rotary adjusted on the bush d,
i.e. on the cam shaft i to a nicity."
1.
In all other respects the construction of the cam a, b, c, remains the same as
described in the Specification belonging to the Letters Patent hereinbefore
referred to.
.1
**
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim, is:
1:.
In cams for machines for printing fabrics, as herein before specified, having,a,
variable working surface formed in three concentric parts a, b, c, the use, of a bush'd
secured upon the shaft i and adapted to receive the said cam, the bush & forming,a
worm wheel e gearing into a worm e carried by the cam part a, whereby, the
cam a, b, c, can be bodily rotary adjusted on the bush d, ie, on the shaft #: all
substantially as and for the purpose set forth.
Dated this 13th day of November 1895..
T. BOSSHARDT & CO.,
F.
4, Corporation Street, Manchester, Agents to Applicants.
31'}
b