Improvements in Bicycle and other Suspended Lamps.
Year: 1885

page_text: Improvements in Bicycle and other Suspended Lamps.
7
We, JAMES SIMEON EDGE the younger of Coleshill Street, Birmingham in
the County of Warwick, Manufacturer, and SAMUEL SNELL of Skinner Lane
Birmingham, aforesaid, Lamp Manufacturer, do hereby declare the nature of said
invention for "IMPROVEMENTS IN BICYCLE AND OTHER SUSPENDED LAMPS," to be
as follows:
Our invention has reference to divided sleeve or barrel attachments and in
fasteners to be used in such attachınents for suspended lamps principally for
bicycles in which the lamp is suspended or hung upon the axle of the driving wheel,
but our said improvements are applicable to other suspended lamps for various
purposes; and our said invention has for its object the automatic opening and
closing of the barrel or sleeve attachment and the fastening of the said attachment
on the opening and closing of the door of the lamp.
We will describe our invention in connection with a bicycle lamp.
The divided barrel or sleeve attachment is situated upon the top of the lamp
consists of a fixed half and a movable half, the former being attached to the top of
the lamp and the latter turning upon a hinge joint on the former or fixed half or
rather upon a bracket made by an extension of the fixed half; that is, the movable
half of the divided sleeve or barrel attachment is pivoted and turns outwardly
upon the top portion of the lower half while the door of the lamp is hinged upon a
pivot or axis running below it-The joints or pivots of these axes extend to the
breadth of the attachment, and are parallel and lie under each other; thus, the
upper axis carries the movable half of the attachment which I will call the sleeve
axis and the lower carries the door, hereinafter called the door axis.
The joint or knuckle of the movable half upon one side of the sleeve axis is made
into the form of a semicircular boss with scollopped recesses or concaves on its
underside; and upon the joint of the door axis situated below the aforesaid
knuckle, is a second circular boss or collar of the exact radius of the scollops in the
boss above it so that when the circular boss or collar on the door axis lies within
the lower concave, the attachment is fastened in its closed position, but when
seated in the upper concave, the movable half of the attachment is held and
retained in its open position, the other knuckle or joint on the other side of the
movable sleeve axis, is shaped into the form of a toothed quadrant which engages
or gears with a second toothed quadrant on the door axis or joint; so that the

page_text: joint upon which the door turns carries a means whereby the movable half of the
sleeve is opened and closed and affixed in two positions-Thus on the partial
opening of the door of the lamp, the toothed quadrant on the one side of its joint,
gears with the toothed quadrant on the knuckle of the movable half of the attach-
ment, thereby widely opening the said half, like the jaws of a pair of pincers-The
further or complete opening of the door (until the door and the lamp are in the
same line) moves without having any effect or without influencing the opened half
sleeve, the said half sleeve is retained in its open position by the circular boss on
the door joint taking into the top concave scollop-The closing of the door has
again no effect until it makes a right angle with the lamp-The further movement
of the door causes the toothed quadrant to close the movable half of the attach-
ment, which is held in its closed position by the circular or quadrant boss of the
door hinge engaging with the lower concave scollop.
In applying the fastener herein before described to divided barrel attachments
which are opened by hand instead of automatically as hereinbefore described one
of the scollopped or concave. recesses is forined in a lip carried at the front edge of
the divided attachment-The hinge of the lamp carries a circular boss or quadrant
lug upon its axis, so that the curved part of the lug or boss takes into the concave
in the lip and thereby firmly holds the divided half attachment or sleeve in its
closed position-In this modification as in the former, the radius of the concave in
the lip is of the same radius as the quadrant lug or boss.
The opening of the door removes the acting end of the lug or boss from its con-
caved seat in the front of the movable half of the sleeve which allows the said half
to be opened and passed upon an axis upon which the lamp is suspended.
D
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page_text: Improvements in Bicycle and other Suspended Lamps.
We, JAMES SIMEON EDGE the younger of Coleshill Street Birmingham in
the County of Warwick, Manufacturer, and SAMUEL SNELL of Skinner Lane
Birmingham, aforesaid, Lamp Manufacturer, do hereby declare the nature of said
invention for "IMPROVEMENTS IN BICYCLE AND OTHER SUSPENDED LAMPS
"" and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
Our invention has reference to divided sleeve or barrel attachments, and in
fasteners to be used in such attachments for suspended lamps, principally for
bicycles, in which the lamp is suspended or hung upon the axle of the driving
wheel, but our said improvements are applicable to other suspended lamps for
various purposes; and our said invention has for its object the automatic opening
and closing of the barrel or sleeve attachment and the fastening of the said
attachment on the opening and closing of the door of the lamp.
We will describe our invention in connection with a bicycle lamp.
The divided barrel or sleeve attachinent which is situated upon the top of the
lamp, consists of a fixed half and a movable half barrel, the former being attached
to the top of the lamp, and the latter turning upon a hinge joint on the former or
fixed half, or rather upon a bracket made by an extension of the fixed half; that
is, the movable half of the divided sleeve or barrel attachment is pivoted and turns
outwardly upon the top portion of the lower half, while the door of the lamp is
hinged upon a pivot or axis running below it. The joints or pivots of these axes
extend to the breadth of the attachment, and are parallel and lie under each other;
thus, the upper axis carries the movable half of the attachment, (which we will
call the sleeve axis) and the lower carries the door, herein-after called the
door axis.
The joint or knuckle of the movable half upon one side of the sleeve axis is made
into the form of a semi-circular boss, with scollopped recesses or concaves on its
underside; and upon the joint of the door axis, situated below the aforesaid
knuckle, is a second circular boss or collar of the exact radius of the scollops in the
boss above it, so that when the circular boss or collar on the door axis lies within
the lower concave, the attachment is fastened in its closed position, but when seated
in the upper concave, the movable half of the attachment is held and retained in
its open position; the other knuckle or joint on the other side of the movable
sleeve axis, is shaped into the form of a toothed quadrant, which engages or gears
with a second toothed quadrant on the door axis or joint; so that the joint upon
which the door turns, carries a means whereby the movable half of the sleeve is
opened and closed, and affixed in two positions-Thus on the partial opening of
the door of the lamp, the toothed quadrant on the one side of its joint, gears with
the toothed quadrant on the kuuckle, of the movable lialf of the attachment,
thereby widely opening the said half, like the jaws of a pair of pincers-The
further or complete opening of the door (until the door and the lamp are in the
same line) moves. without having any effect, or without influencing the now fully

page_text: opened half sleeve; the said half sleeve is retained in its open position by the
circular boss (before named on the opening side) on the door joint, taking into the
top concave scollop-The shutting down of the door has again no effect, for
the closing of the divided barrel, until the door makes a right angle (or nearly so)
with the lamp body-The further downward movement of the said door, causes
the tooth of the one, to engage with the tooth of the other; and which engagement
compels the movable divided half of the sleeve to close, so as to embrace the spindle
or axis upon which the lamp is to be hung.
In applying the fastener herein before described to divided barrel attachments
which are opened by hand instead of automatically, one of the scollopped or
concaved recesses is formed in a lip carried at the front edge of the divided
attachment The hinge of the lamp carries a circular boss or quadrant lug upon its
axis, so that the curved part of the lug or boss takes into the concave in the lip,
and thereby firmly holds the divided half attachment or sleeve in its closed
position In this modification as in the former, the radius of the concave in the lip
is of the same radius as the quadrant lug or boss.
The opening of the door removes the acting end of the lug or boss from its
concaved seat in the front of the movable half of the sleeve, which allows
the said half to be opened and passed upon an axis upon which the lamp is
suspended.
We will now proceed to describe with reference to the accompanying Drawings,
the manner in which the same is to be performed.
Figure 1 represents in side elevation and partly in section, a bicycle lamp,
provided with improvements made according to our invention, with the divided
sleeve by which the lamp is suspended or hung, closed; the said section of the
upper part of the lamp being taken through the opening side of the sleeve, or
through that part which is in juxta position to the expedients or means, by which
the sleeve or divided barrel is automatically opened (like that of the jaws of a pair
of pincers) on the opening of the door of the lamp-Figure 2 represents a like
view with the halve of the sleeve opened-Figure 3 represents the same, with the
section taken through the closing and fixing side of the sleeve-Figure 4 is a back
clevation of the lamp, showing the respective positions of the devices, for the
opening and closing of the sleeve by which the lamp is suspended.
The same letters of reference indicate corresponding parts in figures 1, 2, 3 and 4
of the accompanying Drawings.
a is the body of the lamp, b is the door of the said lamp, and 6' is the door axis,
which extends from the opening side A to the closing side B of the sleeve or
divided barrel; that is, the divided sleeve or barrel is provided with an opening
and closing device which are respectively marked A and B-c is the movable half
barrel, and d is the fixed half barrel, carried by the bracket e, secured to the top of
the lamp ac is the movable sleeve axis, upon which the movable half c turns as
a centre; thus the divided barrel or sleeve consists of a fixed half d and a movable
half c-The joints or pivots of the sleeve axis and the door axis, extend to the
breadth of the bracket attachment, as best seen in figure 4.
The means of opening and closing the divided barrel or sleeve (which is on the
side A) consists of a toothed quadrant b³, carried by the knuckle portion of the
door b, surrounding one side of the axis 62, the teeth or tooth of which engages
with a tooth or teeth c³ carried by the movable half c of the sleeve or barrel.
The means of locking, securing and partial closing of the said divided barrel or
sleeve on the shutting of the door (which is on the side B) consists of a circular
boss surrounding the axis 6* upon which the door b turns as a centre. The said
circular boss f has a detent or notch f, wherein the tooth 92, formed by the
junction of the scollops g of the boss g enters; this said boss is carried by the
inovable balf sleeve c, and surrounds the joint c' upon which the movable half c
turns as a centre.
The first or initial opening of the door unlocks or liberates the B side of tho
binged half of the divided sleeve; that is, the first opening of the door causes a

page_text: partial rotation of the notched boss which first moves within the lower scollop, and
then by its further movement, the tooth formed by the junction of the scollops,
enters the notch; thus on the opening of the door of the lamp, the tooth of the
toothed knuckle b³, does not commence to act upon the tooth of the toothed
knuckle c3 carried by the movable half sleeve c, until the door has been opened to
an extent about equal to the position as represented in the dotted lines figure 1 and
marked C. By thus allowing the door to be opened to a limited extent as indicated,
the lamp thereby admits of being lighted, without the means by which the sleeve
is opened, being interfered with.
To open the sleeve or barrel, raise the door in the direction indicated by the
arrow figure 1, when the tooth of the door part, presses against the tooth on the
divided barrel part, and the divided sleeve or barrel part is thereby opened, as
represented in figures 2 and 3 which can now be placed upon an axis or spindle.
The further and fully opening of the door and the locking of the movable half
sleeve in its raised position, so as to bring the door in the same plane or nearly so,
as the lamp, in order to diminish its breadth, for introducing it through the spokes
of a wheel, does not influence or further increase the opening of the half sleeve.
This further movement is allowed for, by the circular portion of the boss f (on the
closing side B) moving in the concave g² of the boss g on the half sleeve c.
To close the now open barrel or sleeve upon an axle or spindle, turn the door
down, or in the direction indicated by the arrow; the first movement of the door
has no effect upon the movable half of the sleeve, as the convex portion of the
circular boss fis moving within the like concave portion g³ of the boss g, but on
the point g2 coming within the recess or notch f2 and the tooth on the knuckle b³
coming against the tooth on the knuckle c³, then the sleeve is closed as represented
in figure 1 on the door reaching the dotted line C; the further movement, and final
closing of the door has no effect upon the opening and closing mechanism.
Figure 5 shows a side elevation (closed) partly in section of a lamp, provided
with a fastener constructed according to another form of our invention. In this
case, the movable portion of the divided barrel is opened by hand instead of being
automatically opened by the door.
Figure 6 is the lid of the lamp open, and also the divided barrel. Figure 7 is a
front elevation of figure 5, and figure 8 shows the front of the lip on the barrel,
and also a front view of the cam formation, surrounding the joint of the door.
a is the lamp body, b is the door turning upon a joint centre 62, c is the movable
part of the barrel, and c² is its joint centre. d is the fixed part of the barrel
secured to the crown of the lamp. c is an extended lip, having a concave c* struck
from the joint centre 62 upon which the door 6 turns. 63 is a quadrant lug with its
face 6 struck from the centre 62. This said lug is carried by the knuckle
surrounding the joint of the door.
When the sleeve is required to be opened as in figure 6, elevate the door to about
a right angle as shown, when the lug b³ is thereby removed from the concave c¹ of
the lip c³, which thus frees the fastener, and allows the movable part of the jointed
barrel to be opened.
In the first described arrangement, instead of the movable half of the divided
sleeve being operated or acted upon by the early opening of the door, yet the said
opening of the divided sleeve may only take place on the opening of the door
from about a right angle; the movable half is fully opened and locked as before.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is,
First. Automatically opening and closing the movable or hinged half of a divided
sleeve or barrel of a bicycle or other lamp, by means of the joint or knuckle end
of the door of the said lamp, acting upon or engaging with the joint or knuckle
side of the movable half of a divided sleeve or barrel, on the said door being opened
and closed.

page_text: Secondly. Automatically opening and closing the movable or hinged half of a
divided sleeve or barrel, by means of a tooth or teeth on the joint end of the door,
engaging with a tooth or teeth on the joint end of the movable half of a divided
sleeve or barrel, substantially as described and illustrated in figures 1, 2, 3, and 4.
Thirdly. Locking or fixing the movable or hinged half of a divided sleeve or
barrel in its opened or closed position, or in its partially opened or partially closed
positions, by a circular notched boss on the joint end of the door, engaging or
working in conjunction with a scollopped boss, on the joint end of the movable
half of a divided sleeve or barrel, and which said parts may be used if necessary as
an auxiliary closer, substantially as described and illustrated in figures 1, 2, 3
and 4.
Fourthly. Fastening the movable or hinged half of a divided sleeve or barrel of
a bicycle or other lamp, by means of a cam formation or lug on the knuckle or
joint end of the door, engaging within a concave depression formed in or on, the
front or opening portion of the hinged or movable half sleeve or barrel; or in or on
a lip carried by the said sleeve-The acting face of the lug, and the concave
depression wherein the lug seats itself when the lamp is fastened, is struck from
the hinged centre of the door, substantially as described and illustrated in figures 5,
6, 7 and 8 of the accompanying Drawings.
Doted this twenty first day of Anxil 1886