IMPROVEMENTS IN CLIP DRUMS OR PULLEYS
Year: 1884

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN CLIP DRUMS OR PULLEYS" 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 means for applying power in the direction of a pull, as
upon a cable, endless band, or other device through which, or to which, power may
be transmitted or applied; and has for its object to produce a fevolving device
which shall firmly gripe the cable, band, or tho like, so that it will advance
according to the revolution of the device.
The said invention comprises a pair of concentric revolving discs, arranged upon
axes slightly inclined to each other, so that the adjacent faces of the disos, in
revolving, gradually approach each other from one point toward the diametrically
opposite point; and a concentric cylindrical bearing surface, between said discs,
upon which the band or the like to be griped may run, the adjacent faces of the
said discs, outside said cylindrical surface, because of the inclination of their axes,
operating to gradually gripe the paid band or the like, passing over the said
cylindrical surface, to cause it to move according to the rotation of the dists, as
more fully hereinafter described.
In the accompanying drawing
Figure 1 represents a top view, showing the two dises on their respective shafts.
Figure 2 is a horizontal section through the discs.
Figure 3 is a face view of one disc showing the concentric flange, and the
concentric groove on the face of the diso, at its junction with the flange.
Figures 4, and 5 illustrate modifications.
A represents one shaft and B the other, arranged in suitable bearings a, a, and b, b,
their adjacent ends being concentric with each other, but the axis of one slightly
inclined to the axis of the other.

page_text: On the shaft A is a disc OC and on the shaft B is a like disc D both of which are
secured to their respective shafts so as to partake of the revolution thereof.
Between the said discs is a cylindrical surface d which is best produced by making
a flange upon the face of the disc D and constructing the other disc C with a
corresponding recess e into which the cylindrical flange D may extend. Outside
the cylindrical surface d, the faces of the discs are inclined outward and from each
other, so as to produce substantially a V-shaped space between the two discs. In
the face of each disc, and around the cylindrical surface, is a recess or groove f.
Because of the inclination of the axes one to the other, the adjacent faces of the
discs gradually approach each other from one point to the diametrically opposite
point, and as seen in figures 1 and 2. At their nearest point of approach the two
recesses ff correspond substantially to the transverse section of the band or the
like to be griped, and, as shown, this is cylindrical, as for griping a wire or cable.
The two discs or shafts should be coupled so that the power imparted to one will
be communicated to the other. As here represented, this is effected by slots h in
the edge of the flange d, screws or studs i in the other disc entering said slote, so
that power applied to the shaft A, will, through said screws and slots, be communi-
cated to the other shaft. As here represented, power is applied through a gear-
wheel E on the shaft A, but may be otherwise applied.
To illustrate a use for this invention, suppose it is required to transmit power
through an endless rope, or cable. The cable is passed between the two discs, and
into the recesses ff, there standing substantially as it would in a grooved pulley,
with this difference, however, that, whereas in a grooved pulley dependence for
transmitting power is based entirely upon frictional contact of the endless cable in
the groove of the pulley, in this device the faces of the discs are so close together
as to gripe the cable say from the point 7 to the point m, or for about one-fourth of
their circumferences. The width between the grooves at the cylindrical surface
gradually diminishes, the gripe upon the cable, therefore, increases from the point 7
to the point m, and this gripe will be sufficient to hold the cable, and force it to
move with the revolving discs. From the point m to the point n, or on the
second quarters of the discs, the groove gradually opens and will fully release the
cable at the point n. By the use of this device power may be transmitted through
a cable, notwithstanding that it may be very loose, and by no possibility can it
slip from the gripe of the discs; the power communicated, therefore, is of the most
positive character.
In general practice, it will be better, that, at the point to which the power is to
be communicated, a like griping device shall be applied to the shaft, so that the
pull of the cable upon that griping device will force its corresponding revolution.
Another application of this device is in hoisting mechanism, in which the rope
or cable passes over the cylindrical portion between the discs, is griped as before
described to lift a weight suspended thereon, or, with the discs turned in the
opposite direction, to lower auch weight
One other illustration of the use of this invention will be sufficient to show its
adaptation to various purposes, and that is, as a feeding device for wire, or cable,
which is drawn through a machine in which the cable is formed, covered, or
otherwise treated, and where power is required to so. draw the cable, or wire,
through the machine.
In such use, one end of the wire or cable is introduced upon the cylindrical
surface, and in the grooves, at a point where the surfaces thereof will bear upon
the surface of the said wire or cable so as to gripe it; the end of the wire will
then be taken by the revolving discs around to near the opposite point thereof,
from whence it will escape, and may be conducted therefrom to a reel or other
machine as the case may be, this device ensuring a constant and steady pull upon
the wire or cabla.
While it is preferred to make the cylindrical surface as a part of one of the discs,
it may be detached as seen in Figure 4, the two discs being recessed alike, and the
flange d extending into both recesses and being fitted therein.

page_text: In this case the cylindrical surface may be coupled with either one or both the
shafts, as shown in Figure 4.
Although I prefer to construct the faces of the disc, at their junction with the
cylindrical surface, with the concentric groove, it will be evident that a strong grip
my be produced by constructing that surface without the groove, as seen in
Figure 5, the invention is not, therefore, to be understood as limited to the
employment of a groove.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
First. The combination of a pair of concentric revolving discs arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point, with a concentric bearing surface between said discs, substantially
as described, whereby the cable, or whatever it may be, running upon said
cylindrical surface, will be gradually griped by said discs, so as to partake of the
revolution thereof, as described.
Second. The combination of a pair of concentric revolving discs arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs in
revolving gradually approach each other from one point toward the diametrically
opposite point, and the concentric cylindrical bearing surface between said discs,
the said discs at the said cylindrical bearing surface being constructed with con-
centric grooves, substantially as, and for the purpose, described.
Third. The combination of a pair of concentric revolving dises arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point, one disc being constructed with a concentric flange upon its face
and the other disc with a concentric recess, corresponding to said concentric flange,
into which said concentric flange will enter, substantially as described.
Fourth. The combination of a pair of concentric revolving dises arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point, one of the said dises being constructed with a concentric flange
upon its face and the other with a correspondingly concentric recess, into which
the said flange will enter, and each of said dises being constructed with a concentric
groove at the junction of the face with the said concentric flange, substantially as,
and for the purpose, described.
1
7724
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN CLIP DRUMS OR PULLEYS" 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 means for applying power in the direction of a pull, as
upon a cable, endless band, or other device through which, or to which, power may
be transmitted or applied; and has for its object to produce a revolving device
which shall firmly gripe the cable, band, or the like, so that it will advance
according to the revolution of the device.
The said invention comprises a pair of concentric revolving discs, arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point; and a concentric cylindrical bearing surface, between said discs,
upon which the band or the like to be griped may run, the adjacent fases of the
said dises, outside said cylindrical surface, because of the inclination of their axes,
operating to gradually gripe the said band or the like, passing over the said
cylindrical surface, to cause it to move according to the rotation of the discs, as
more fully hereinafter described.
In the accompanying drawing
Figure 1 represents a top view, showing the two discs on their respective shafts.
Figure 2 is a horizontal section through the discs.
Figure 3 is a face view of one disc showing the concentric flange, and the
concentric groove on the face of the disc, at its junction with the flange.
Figures 4, and 5 illustrate modifications.
A represents one shaft and B the other, arranged in suitable bearings a, a, and b, b,
their adjacent ends being concentric with each other, but the axis of one slightly
inclined to the axis of the other.

page_text: On the shaft A is a disc C and on the shaft B is a like disc D both of which are
secured to their respective shafts so as to partake of the revolution thereof.
Between the said discs is a cylindrical surface & which is best produced by making
a flange upon the face of the disc D and constructing the other disc C with a
corresponding recess e into which the cylindrical flange D may extend. Outside
the cylindrical surface d, the faces of the discs are inclined outward and from each
other, so as to produce substantially a V-shaped space between the two discs. In
the face of each disc, and around the cylindrical surface, is a recess or groove f.
Because of the inclination of the axes one to the other, the adjacent faces of tho
discs gradually approach each other from one point to the diametrically opposite
point, and as seen in figures 1 and 2. At their nearest point of approach the two
recesses ff correspond substantially to the transverse section of the band or the
like to be griped, and, as shown, this is cylindrical, as for griping a wire or cable.
The two discs or shafts should be coupled so that the power imparted to one will
be communicated to the other. As here represented, this is effected by slots h in
the edge of the flange d, screws or studs i in the other disc entering said slots, so
that power applied to the shaft A, will, through said screws and slots, be communi-
cated to the other shaft. As here represented, power is applied through a gear-
wheel E on the shaft A, but may be otherwise applied.
To illustrate a use for this iuvention, suppose it is required to transmit power
through an endless rope, or cable. The cable is passed between the two discs, and
into the recesses ff, there standing substantially as it would in a grooved pulley,
with this difference, however, that, whereas in a grooved pulley dependence for
transmitting power is based entirely upon frictional contact of the endless cable in
the groove of the pulley, in this device the faces of the discs are so close together
as to gripe the cable say from the point to the point m, or for about one-fourth of
their circumferences. The width between the grooves at the cylindrical surface
gradually diminishes, the gripe upon the cable, therefore, increases from the point
to the point m, and this gripe will be sufficient to hold the cable, and force it to
move with the revolving discs. From the point m to the point n, or on the
second quarters of the discs, the groove gradually opens and will fully release the
cable at the point n. By the use of this device power may be transmitted through
a cable, notwithstanding that it may be very loose, and by no possibility can it
slip from the gripe of the discs; the power communicated, therefore, is of the most
positive character.
In general practice, it will be better, that, at the point to which the power is to
be communicated, a like griping device shall be applied to the shaft, so that the
pull of the cable upon that griping device will force its corresponding revolution.
Another application of this device is in hoisting mechanism, in which the rope
or cable passes over the cylindrical portion between the discs, is griped as before
described to lift a weight suspended thereon, or, with the discs turned in the
opposite direction, to lower such weight.
One other illustration of the use of this invention will be sufficient to show its
adaptation to various purposes, and that is, as a feeding device for wire, or cable,
which is drawn through a machine in which the cable is formed, covered, or
otherwise treated, and where power is required to so draw the cable, or wire,
through the machine.
-
In such use, one end of the wire or cable is introduced upon the cylindrical
surface, and in the grooves, at a point where the surfaces thereof will bear upon
the surface of the said wire or cable so as to gripe it; the end of the wire will
then be taken by the revolving discs around to near the opposite point thereof,
from whence it will escape, and may be conducted therefrom to a real or other
machine as the case may be, this device ensuring a constant and steady pull upon
the wire or cable.
While it is preferred to make the cylindrical surface as a part of one of the discs,
it may be detached as seen in Figure 4, the two discs being recessed alike, and the
flange d extending into both recesses and being fitted therein.

page_text: In this case the cylindrical surface may be coupled with either one or both the
shafts, as shown in Figure 4.
Although I prefer to construct the faces of the disc, at their junction with the
cylindrical surface, with the concentric groove, it will be evident that a strong grip
my be produced by constructing that surface without the groove, as seen in
Figure 5, the invention is not, therefore, to be understood as limited to the
employment of a groove.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
First. The combination of a pair of concentric revolving discs arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point, with a concentric bearing surface between said discs, substantially
as described, whereby the cable, or whatever it may be, running upon said
cylindrical surface, will be gradually griped by said discs, so as to partake of the
revolution thereof, as described.
Second. The combination of a pair of concentric revolving discs arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs in
revolving gradually approach each other from one point toward the diametrically
opposito point, and the concentric cylindrical bearing surface between said discs,
the said dises at the said cylindrical bearing surface being constructed with con-
centric grooves, substantially as, and for the purpose, described.
Third. The combination of a pair of concentric revolving dises arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point, one disc being constructed with a concentric flange upon its face
and the other disc with a concentric recess, corresponding to said concentric flange,
into which said concentric flange will enter, substantially as described.
Fourth. The combination of a pair of concentric revolving discs arranged upon
axes slightly inclined to each other, so that the adjacent faces of the discs, in
revolving, gradually approach each other from one point toward the diametrically
opposite point, one of the said discs being constructed with a concentric flange
upon its face and the other with a correspondingly concentric recess, into which
the said flange will enter, and each of said discs being constructed with a concentric
groove at the junction of the face with the said concentric flange, substantially as;
and for the purpose, described.
•
HASELTINE, LAKE & Co.,
For the Applicant.