Improvements in or relating to the Adjustment of Axles for Band Saw Pulleys.
Year: 1898

page_text: Date of Application, 1st June, 1898.
Complete Specification Lelt, 6th Feb., 1899-Accepted, 11th Mar.,
1899
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Adjustment of Axles for Band
Saw Pulleys.
I, FRANS ZEINWOLDT, of Budafors, Sandsjö, in the Kingdom of Sweden, Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to an arrangement of the wheel shafts of band saw
pulleys which has the purpose of allowing an exact adjustment in all directions
of the two wheels or pulleys which carry the blade as also a good working of the
band saw.
The shaft which does not rotate is seated on a support provided with a hollow
corresponding to a ball shaped enlargement of the shaft. The hub of the under
wheel or pulley of the band saw is mounted on the shaft by means of a ball bear-
ing. A frame surrounding the one end of the shaft and arranged on the support
carrying the framing (saw framing) is provided with adjusting screws, by which
the shaft and consequently also the band saw wheel or pulley carried by the same
can be displaced in the desired direction for the purpose of being able to use saw
blades of different width as also to adjust a blade to different sides of the band
saw wheels or pulleys.
The arrangement of the mounting of the upper wheel or pulley is similar to
that of the under wheel above described.
Dated this 1st day of Tuna 1900
Improvements in or relating to the Adjustment of Axles for Band
Saw Pulleys.
I, FRANS ZEINWOLDT, of Budafors, Sandsjö, in the Kingdom of Sweden, Manu-
facturer, 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:-
This invention relates to an arrangement of the axles of the band saw pulleys
or wheels, which has the purpose of allowing an exact adjustment in all direc-
tions of the two wheels or pulleys which carry the blade as also a good working
of the band saw.
Fig. 1 is a sectional elevation of one of the stationary wheel shafts with its
mountings, and Fig. 2 is a transverse section of the same on line 2-2 of Fig. 1.

page_text: The axle or shaft a which does not rotate, is seated on a support c, the latter
being provided with a spherical hollow corresponding to a spherical enlarge-
ment of the axle. The hub d of the lower band pulley or wheel is mounted
on one end of the axle a by means of a ball hearing adjacent to the enlargement b.
A frame surrounding the other end of the axle a and secured upon the saw
frame, is provided with adjusting screws e by which the axle a, and consequently
also the band saw wheel or pulley carried by the same can be displaced in the
desired direction for the purpose of being able to use saw blades of different width,
as also to adjust a blade to different sides of the band saw wheels or pulleys.
The arrangement of the mounting of the upper wheel or pulley is similar to
that of the lower wheel or pulley above described.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :-
1. In a band saw, the combination of the stationary wheel or pulley axle pro-
vided with a spherical enlargement near the pulley hub, a support having a
spherical hollow in which the spherical enlargement of the axle fits, a pulley hub
journaled by a ball bearing upon one end of the axle adjacent to said support,
a frame surrounding the other end of the axle and secured to the framing, and
adjusting screws in said frame bearing upon said axle, substantially as set forth.
2. A. band saw pulley axle carrying a band pulley at one end a spherical axle
support adjacent to the hub of said pulley, a stationary frame surrounding the
other end of said axle and secured to the framing and adjusting screws passing
through said frame and bearing upon said axle, substantially as set forth.
3. Band saw pulley axles each having one end supported by four adjusting
screws passing through a fixed frame, on which said axles the saw band pulleys
are journaled, in order that the axles and thus the band wheels may be accurately
positioned.
Dated th: th
..
1800
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.