Improvements in and relating to Mechanism for Converting Reciprocating or Oscillating Motion into Rotary. Motion.
Year: 1886

page_text: Improvements in and relating to Mechanism for Converting
Reciprocating or Oscillating Motion into Rotary. Motion.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:-
This invention relates to that class of mechanical movements which are employed
for converting the reciprocating or oscillating motion of a band-lever or treadle into
a rapid rotary motion, and which are more especially employed for operating the
rotary blowers of portable forges and other revolving instruments or devices which
require a high rotary speed.
The object of my invention is to produce an efficient and compact mechanism of
this kind which will produce the desired result in a very simple and direct manner,
and my invention consists, to that end, of the improvements hereinafter set forth
which are described in connection with a portable forge.
According to the said invention the blower shaft is connected by an endless belt
with a driving wheel mounted loosely on an arbour which is supported in the frame
of the machine and preferably made adjustable by set-screws for tightening the belt
when required.
A cylindrical neck or collar is formed on one side of the hub of the driving
wheel, and a serrated or toothed clutch disc is formed on, or secured to, the outer
end of the neck with its toothed side turned toward the driving wheel. A second
clutch-disc is mounted loosely on the cylindrical neck with the toothed side
adjacent to the toothed side of the first disc. The latter is preferably cast in one
piece with the neck, and the second disc is made in two parts which are secured
together by screws after being applied to the neck. The teeth on the adjacent
sides of the two discs are inclined, so that upon turning the second disc forwardly
the motion will be transmitted to the first disc, while upon turning the second disc
in an opposite direction the first disc, and the driving wheel secured thereto, will
continue their forward movement notwithstanding the reversal of the movement of
the second disc.

page_text: Projecting lugs or ears are formed on the periphery of the second disc, and a
cylindrical collar or sleeve encloses the clutch-discs, and is provided with a hub.
The latter turns loosely on the arbour and is provided at its outer end with a gear
pinion. The sleeve is provided with inclined slots or ways in which the lugs of the
loose second disc engage, so that by turning the sleeve forwardly, the inclined slots
acting upon the lugs will throw the second disc in engagement with the first disc,
and upon reversing the motion of the sleeve the second disc will be moved out of
engagement with the first disc. An alternating forward and backward rotary
motion is imparted to the sleeve by a vertical reciprocating rack-bar which
engages with the pinion.
The rack-bar is arranged in a casing in which it is guided by vertical ribs. The
said casing is secured to the stationary frame of the machine by screws, or by any
other suitable means.
A pivotted hand-lever is connected with the rack-bar by a rod. The latter is
attached to the rack-bar and the hand-lever by eyes which permit of a sufficient
lateral movement of the hand-lever to allow the operator the requisite freedom of
movement for reaching tools &c, while operating the blower. The hand-lever is
pivotted by a horizontal bolt to a bifurcated support which, in turn, is pivotted to
a supporting standard by a vertical bolt, so that the hand-lever can be turned
horizontally and vertically. Any other universal joint, for instance a ball or
socket joint, may, however, be employed, if preferred.
Upon pressing the free end of the hand-lever downward the rack-bar is raised
and the pinion and sleeve are rotated forwardly, whereby the second disc is thrown
in engagement with the first disc, and the latter and the driving wheel are turned
forwardly in the proper direction for operating the blower. On the reverse stroke
of the hand lever the rack-bar descends, and the pinion and sleeve are rotated in an
opposite direction, the second clutch disc is moved out of engagement with the first
disc and turned in an opposite direction, while the driving wheel and connecting
parts continue their forward rotation by the momentum imparted to the parts
during the effective stroke of the hand lever. In this manner the easy up and
down motion of the hand lever is converted into a rapid rotary motion of the
driving wheel and blower without requiring any counter-shafts or multiplying
gears or pulleys. The blower or other rotating part can only be rotated in the
right direction, irrespective of the position of the hand lever when the movement is
begun, and the machine cannot stop at a dead centre, so that the machine is always
ready to be set in motion by simply operating the hand-lever. By increasing or
decreasing the stroke of the band-lever the speed of the blower is increased or
decreased, and the hand-lever may, at times, be held stationary, with the second
clutch disc disengaged from the first disc, without interfering with, or arresting,
the rotary motion of the blower.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: Reciprocating or Oscillating Motion into Rotary Motion.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings in the County of Middlesex do hereby declare the nature
of this invention and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement:―
This invention relates to that class of mechanical movements which are employed
for converting the reciprocating or oscillating motion of a hand lever or treadle
into a rapid rotary motion, and which are more especially employed for operating
the rotary blowers of portable forges and other revolving instruments or devices
which require a high rotary speed.
The object of my invention is to produce and efficient and compact mechanism
of this kind which will produce the desired result in a very simple and direct
manner, and my invention consists to that end of the improvements which will be
hereinafter fully set forth.
In the accompanying drawing:-
Figure 1 is a side elevation of a portable forge provided with my improved
mechanical movement.
Figure 2 is a horizontal section drawn to an enlarged scale, through the handle
of the driving wheel.
Figure 3 is a vertical section on the line xx, Figure 2.
Figure 4 is a vertical section on the line y y Figure 3.
Figure 5 is a cross section on the line z, z Figure 4.
Figure 6 is a face view of the loose part of the clutch.
Figure 7 is a cross section of the hand lever support, drawn to an enlarged
scale.
Like letters of reference refer to like parts in the several figures.
A is the bowl or hearth of a portable forge supported on legs a and provided
with a hood a¹; and B is the blower or fan secured to the lower side of the bow! A
and provided with a suitable pulley on its shaft. All of these parts are constructed
in any suitable or well known manner.
'
C is the driving wheel connected with the pulley on the blower shaft by an
endless belt c, and mounted loosely on an arbour d which is supported in the frame
of the machine and preferably made adjustable by set screws d for tightening the
belt c when required.
A
1
E is a cylindrical neck or collar formed on one side of the hub of the wheel C;
and is a serrated or toothed clutch disc formed on or secured to the outer end of
the neck E with its toothed side turned toward the wheel C. G is a clutch disc
mounted loosely on the neck E with the toothed side adjacent to the toothed side
of the disc F. The latter is preferably cast in one piece with the neck E and the
disc is made in two parts which are secured together by screws g after being
applied to the neck E as represented in Figure 6. The teeth on the adjacent
sides of the discs F. and G are inclined, so that upon turning the loose disc G for
wardly in the direction of the arrow in figure 3, the motion of the loose disc will be

page_text: transmitted to the disc F, while upon turning the loose disc in an opposite direction
the disc F and the wheel C secured thereto will continue their forward movement
notwithstanding the reversal of the movement of the disc G.
hh are projecting lugs or ears formed on the periphery of the disc G; and H is
a cylindrical collar or sleeve which encloses the clutch discs F and G and which
is provided with a neck i. The latter turns loosely on the arbour d and is
provided at its outer end with a gear pinion J. The sleeve H is provided with
inclined slots or ways in which the lugs h of the loose clutch disc G engage, so
that by turning the sleeve H forwardly the inclined slots ; acting upon the lugs h
will throw the loose disc G into engagement with the disc F, and upon reversing
the motion of the sleeve H the loose disc G will be moved out of engagement with
the dise F. An alternating forward and backward rotary motion is imparted
to the sleeve H by a vertical reciprocating rack-bar K which engages with the
pinion J. The rack-bar is arranged in a casing L in which it is guided by vertical
ribs . The casing L is secured to the stationary frame of the machine by screws m
or by any other suitable means.
N is the pivotted hand lever which is connected with the rack bar K by a
rod O. The latter is attached to the rack-bar and the hand lever by eyes p p¹,
which permit of a sufficient lateral movement of the hand lever. to allow the
operator the requisite freedom of movement for reaching tools &c. while operating
the blower. The hand lever N is pivotted by a horizontal bolt q to a bifurcated
support R which in turn is pivotted to the supporting standard S by a vertical
bolts, as represented in figure 7, so that the hand lever can be turned horizontally
and vertically. Any other universal joint for instance a ball and socket joint may,
however, be employed, if preferred.
.
Upon pressing the free end of the hand lever downward the rack-bar K is
raised and the pinion J and sleeve H are rotated forwardly in the direction of the
arrow in figure 1, whereby the loose-clutch disc G is thrown into engagement with
the disc F, and the latter and the driving wheel C are turned forwardly in the
proper direction for operating the blower. On the reverse stroke of the hand
lever the rack-bar K descends, the pinion J and sleeve H are rotated in an opposite
direction, the clutch disc G is moved out of engagement with the disc F and
turned in an opposite direction, while the wheel C and connecting parts continue
their forward rotation by the momentum imparted to the parts during the effective
stroke of the hand lever. In this manner the easy up and down motion of the
hand lever is converted into a rapid rotary motion of the driving wheel and
blower, without requiring any counter shafts or multiplying gears or pulleys. The
blower or other rotating part can only be rotated in the right direction, irrespective
of the position of the hand lever when the movement is begun, and the machine
cannot stop at a dead centre, so that the machine is always ready to be set in
motion by simply operating the hand lever. By increasing or decreasing the
stroke of the hand lever the speed of the blower is increased or decreased, and the
hand lever may at times be held stationary, with the clutch disc G disengaged
from the disc F, without interfering with or arresting the rotary motion of the
blower.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is :-
First. The combination with a driving wheel C provided with a clutch disc F,
of a loose clutch disc G which is turned alternately backwardly and forwardly,
and which is thrown into engagement with the disc F on its forward movement
and out of engagement on its backward movement, substantially as set forth.
Second. The combination with a driving wheel C provided with a clutch disc F,
of a loose clutch disc G and a collar H which is turned alternately backwardly
and forwardly and which throws the disc G alternately into and out of engage-
ment with the disc F, substantially as set forth. -

page_text: Third. The combination with the driving wheel C provided with a clutch disc F,
of a loose clutch disc G provided with lugs h, and a collar H provided with
inclined guidesj in which the lugs h engage, substantially as set forth.
Fourth. The combination with the driving wheel C provided with a clutch
disc F, of the loose clutch disc G, a collar H connected with the disc G and
provided with a pinion J, and a reciprocating rack-bar K engaging with the
pinion J, substantially as set forth.
Fifth. The combination with the driving wheel C provided with a clutch disc F,
of a loose clutch disc G, a collar H connected with the disc G and provided with
a pinion J, a rack-bar K engaging with the pinion J, a hand lever N, and a rod O
connecting the rack-bar with the hand lever, substantially as set forth.
Sixtb. The combination with a rotary blower B, of a driving wheel C provided
with a clutch disc F, a loose clutch disc G, and a collar H connected with the
disc G and turned alternately backward and forward, substantially as set forth.
Seventh. The combination with the driving wheel C provided with a clutch
disc F, of a loose clutch disc G, a collar H provided with a pinion J, a rack-bar K,
and a casing L enclosing the rack-bar and provided with guides I, substantially as
set forth.
Eighth. The combination with the wheel C cast with a neck E and clutch
disc F, of the loose clutch disc G made in halves and mounted on the neck E by
securing the halves together, substantially as set forth.
Ninth. The combination with a fan, of a driving wheel, a clutch connected with
said wheel, a rack-bar and pinion whereby the clutch is moved back and forth,
and a hand lever whereby the rack-bar is set in motion, substantially as set forth.
11
10.
1206
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.