Improvements in Belt Motions.
Year: 1897

page_text: Improvements in Belt Motions.
We, JAMES BARBOUR, Machinist, and JOHN BROWN, Foreman Mechanic, both of
Falls Foundry, Belfast, do hereby declare the nature of this invention to be as
follows:-
This improvement relates to means of actuating & carrying belt motions such
as are used in drawing frames for drawing flax, hemp, jute & similar fibres
but may be applied to other machines as well.
The belt fork is bolted on to a segment which embraces as much of the driving
pulleys as will allow of the belt fork being carried to suit a drive from any
direction, the segment itself may form one side of the belt fork.
The segment is carried on two parallel rods which pass through supports in the
end framing and which are further joined or connected by a link or cross bar;
about the centre of this cross bar a belt rod running the length of frame is fixed
and carried in supports thus ensuring a parallel movement of the belt motion
with the least possible tendency to twist.
On the belt rod that runs the length of frame is fixed an inclined slot, the ends
of which act as stoppers thus dispensing with stop washers.
The set handle or handles is a lever carried at right angles to the belt rod and
free to oscillate in a vertical direction, one end of this set handle engaging with
the inclined slot and as the set handle is raised or depressed the segment carry-
ing the belt fork, due to the connection described is made to travel from the loose to
the driving pulley or vice versa.
By the combination of belt fork carried as described and the use of an inclined
slot on belt rod, worked by lever, a belt motion with fewer working parts and
more effective in its motion is obtained than has hitherto been used.
Dated this 16th day of September 1897.
JAMES BARBOUR.
JOHN BROWN.
Applicants.
We, JAMES BARBOUR, Machinist, and JOHN BROWN, Foreman Mechanic, both of
Falls roundry, Belfast, do hereby declare the nature of this invention and in what
manner the same to be performed, to be particularly described and ascertained
in and by the following statement:-
This improvement relates to means of actuating & carrying belt motions such

page_text: as are used in drawing frames for drawing flax hemp jute & similar fibres
but may be applied to other machines as well.
The belt fork is bolted on to a segment which embraces as much of the driving
pulleys as will allow of the belt fork being carried to suit a drive from any
direction.
The segment is carried on two parallel rods which pass through supports in the
end framing and which are further joined or connected by a link or cross bar
about the centre of this cross bar a belt rod running the length of frame is fixed
and carried in supports thus ensuring a parallel movement of the belt motion
with the least possible tendency to twist.
On the belt rod that runs the length of frame is fixed an inclined slot the ends
of which act as stoppers thus dispensing with stop washers.
The set handle or handles is a lever carried at right angles to the belt rod and
free to oscillate in a vertical direction one end of this set handle engaging with
the inclined slot and as the set handle is raised or depressed the segment carrying
the belt fork due to the connection described is made to travel from the loose
to the driving pulley or vice versa.
Such being the nature & object of our invention the following is a complete
description of same reference being had to the accompanying sheet of drawings
in which Fig. I shews as much of a drawing frame with the belt motion as will
shew the nature of our invention. Fig. II is an end elevation of Fig. I. Fig. III.
is a plan view of Fig. II.
At 1 is the driving pulleys 2 the belt fork. 3 the segment carried on the
parallel bars or rods 4,4 which are supported in bearings 5,5 on the frame end
the rods 44 are further joined by a link 6. 7 is the belt rod attached to link 6
and as this belt rod runs the full length of frame it is supported by the bearer
& frame end not shewn on drawing. On this rod 7 a bracket 8 with an inclined
slot is fixed.
The set handle 9 carried in braeket 10 has one end in the inclined slot 8 & as
this set handle can only oscillate in a vertical manner-by the raising or depress-
ing of this set handle the bracket 8 with inclined slot is forced to travel &
consequently the segment 3 with belt fork 2 is forced to travel or move from the
loose pulley to the driving pulley & vice versa.
By the use of belt fork carried as described and the use of an inclined slot on
belt rod worked by lever a belt motion with fewer working parts and more
effective in its motion is obtained than has hitherto been used.
Having now particularly described & ascertained the nature of our said inven-
tion & in what manner the same is to be performed we declare that what we
claim is:-
(1) In belt motions the use of an inclined slot on belt rod actuated by a lever
as a means of obtaining the backward & forward movement to move the belt
motion.
(2) In belt motions the use of segment parallel rods & cross link as set forth
& described by the accompanying drawings so that a belt fork can be attached
to the segment to suit any direction of drive.
1000
Applicants.
JAMES BARBOUR.
JOHN
BROWN.