Improvements in Velocipede Lamps.
Year: 1888

page_text: Date of Application, 21st Sept., 1888
Complete Specification Left, 21st June, 1889-Accepted, 27th July,
1889
PROVISIONAL SPECIFICATION.
Improvements in Velocipede Lamps.
We, CHARLES ALBERT MILLER and FREDERICK JOHN MILLER both of Miller
Street, Birmingham in the County of Warwick, Lamp Manufacturers, do hereby
declare the nature of this invention to be as follows:-
This invention relates to lamps jointedly suspended to coupled together parallel arms,
which work after the manner of a "parallel motion."
Our invention relates to new or improved means for suspending lamps as aforesaid,
and consists 1st in adjusting means, 2ndly in providing the middles of the arms with
extended sleeves, through which the adjusting pin or rod passes, 3rdly in coning the
ends of the suspending pivots, 4thly in the spring attachment, and 5thly in a modified
construction of the joints.
In constructing a lamp according to our invention, we proceed as follows.
At the back of the lamp, two sets of parallel and outwardly jointed arms are
arranged; one set which we call the upper set is arranged at the upper part of the
lamp, while the lower set is arranged near the base thereof.
Both the inner and outer ends of the said upper and lower sets of arms have
coned bearings, or seats, formed transversely through them, which take upon the
coned ends of pivots carried by the back of the lamp, and the socket carrier plate
respectively; that is to say, the bearings of the inner ends of the upper set, take
upon the coned ends of a pivot, supported outwardly by a bracket near the top of the
lamp, whilst the inner ends of the lower set take upon the coned ends of a pivot
situated at or near the base of the lamp.
The bearings of the outer ends of the upper set of arms,
like coned
take upon
ends of a pivot, carried at the top of a socket carrier plate, whilst the bearings of the
outer end of the lower set of arms, tako upon like coned ends of a pivot, carried at
the lower end of the said socket carrier plate, which has a socket upon its outer
side.
The suspending arms as aforesaid, have directed inwardly from their middles, bearing
sleeves, wherethrough headed pins or rods pass, and by means of which, the bearings of
the arms are brought up to the cone ends of the pivots.
The ends of the pins or rods which are screwed, have adjusting nuts or milled
heads, which by being rotated, bring the arms up to their proper bearings, by
increasing or decreasing the distance between the said arms which are in couples;
and between the inside faces of the nuts and heads, and the outside faces of the arms,
coiled or other wire springs are disposed, which make the bearings self-adjustable on
wear.
The sleeves or tube like extensions on the middles of the inner ends of the arms, are
made for the purpose of giving an extended bearing to the pin, and thereby preventing
twisting and lateral distortion to the arms and their cognate parts.
Although we prefer to have adjustable nuts, which admit of the detachability of the
arms, and parts connected with the lamp, yet the said nuts may be substituted by
fixed heads, with the springs disposed between them and the arm.
Axially surrounding the lower sleeves and pin, is a coiled spring, with one end
hooked and connected to the lower pivot carried by the lamp, and the other end,
which is upwardly extended, connected to the upper coupling cross pin of the arm.
This coiled spring brings the lamp back to its normal position on oscillation.
As a modification of the aforesaid arrangement, we connect the inner and outer
ends of the arms to the back of the lamp, and socket carrier plate respectively, by
brackets or ears; and cross pins with bosses.near their outer ends, which work

page_text: within bearings of the ears or bracket, carried both by the socket carrier plate and
lamp.
Directed from the middles of the pivots of the upper and lower arms, flat springs
are arranged, with their ends slightly curved inwardly, which press upon the middles of
the said pivots, and thereby produce self-adjustable stiff joints, on the movement of
the lamp, when in use on a machine.
A coiled spring as aforesaid, is connected between the upper and lower arms, or
their axes, to produce the necessary return movement of the lamp on oscillation.
It will be observed, that the springs for producing the stiffness of the joints in the
arms, extend from the upper to the lower pivots, of both the inside and outside
joints, and that the middles of the said springs lie within guides, to prevent lateral
displacement, thus allowing the free ends of them to act only upon the pivots ; and
further, in consequence of the bracket bearings or ears being disposed at a distance
from the insides of the arms, direct contact is prevented, and rattling and friction
avoided.
The brackets or ears may be formed into open top bearings, to allow for the
detachability of the parts.
Dated this Twentieth day of September 1888.
CHARLES ALBERT MILLER.
FREDERICK JOHN MILLER.
By Henry Skerrett,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Velocipede Lamps.
We, CHARLES ALBERT MILLER and FREDERICK JOHN MILLER both of Miller
Street Birmingham in the County of Warwick Lamp Manufacturers 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 lamps jointedly suspended to coupled-together parallel
arms, which work after the manner of a "parallel motion."
Our invention relates to new or improved means for suspending lamps as aforesaid,
and consists 1st, in adjusting means, 2ndly, in providing the middles of the arms with
extended sleeves, through which the adjusting pin or rod passes. 3rdly, in coning the
ends of the suspending pivots. 4thly, in the spring attachment, and 5thly, in a
modified construction of the joints.
In constructing a lamp according to our invention, we proceed as follows:-
At the back of the lamp, two sets of parallel and outwardly jointed arms are
arranged; one set of which we call the upper set, is arranged at the upper part of the
lamp, while the lower set is arranged near the base thereof.
Both the inner and outer ends of the said upper and lower sets, of arms have
coned bearings or seats, formed transversely through them, which take upon the
coned ends of pivots, carried by the back of the lamp, and the socket carrier plate
respectively; that is to say, the bearings of the inner ends of the upper set, take
upon the coned ends of a pivot, supported outwardly by a bracket near the top of the
lamp, whilst the inner ends of the lower set, take upon, the coned ends of a pivot,
situated at or near the base of the lamp.
The bearings of the outer ends of the upper set of arms, take upon like coned
ends of a pivot, carried at the top of a socket carrier plate, whilst the bearings of
the outer end of the lower set of arms, take upon like coned ends of a pivot, carried
at the lower end of the said socket carrier plate, which has a socket upon its outer
side.
The suspending arms as aforesaid, have directed inwardly from their middles,

page_text: bearing sleeves, wherethrough headed pins or rods pass, and by means of which, the
bearings of the arms are brought up to the cone ends of the pivots.
The ends of the pins or rods, which are screwed, have adjusting nuts or milled
heads, which by being rotated, bring the arins up to their proper bearings, by
increasing or decreasing the distance between the said arms, which are in couples ;
and between the inside faces of the nuts and heads, and the outside faces of the arms,
coiled or other wire springs are disposed, which make the bearings self-adjustable on
wear.
The sleeves or tube like extensions, on the middles of the inner ends of the arms,
are made for the purpose of giving an extended bearing to the pin, and thereby
preventing the twisting and lateral distortion to the arms, and the cognate parts.
Although we prefer to have adjustable nuts, which admit of the detachability of the
arms and parts connected with the lamp, yet the said nuts may be substituted by
fixed heads, with the springs disposed between them and the arm.
Axially surrounding the lower sleeves and pin, is a coiled spring, with one end
hooked and connected to the lower pivot carried by the lamp, and the other end,
which is upwardly extended, connected to the upper coupling cross pin of the arm.
This coiled spring brings the lamp back to its normal position on oscillation.
As a modification, of the aforesaid arrangement, we connect the inner and outer
ends of the arms, to the back of the lamp, and socket carrier plate respectively, by
brackets or ears, and cross pins with bosses near their outer ends, which work within
bearings of the ears or brackets, carried both by the socket and carrier plate and
lamp.
Directed from the middles of the pivots of the upper and lower arms, flat springs
are arranged, with their ends slightly curved inwardly, which press upon the middles
of the said pivots, and thereby produce self-adjustable stiff joints, on the movement of
the lamp when in use on a machine.
A coiled spring as aforesaid is connected between the upper and lower arms, or
their axes, to produce the necessary return movement of the lamp on oscillation.
It will be observed that the springs for producing the stiffness of the joints in the
arms, extend from the upper to the lower pivots of both the inside and outside joints,
and that the middles of the said springs lie within guides, to prevent lateral displace-
ment, thus allowing the free ends of them, to act only upon the pivots; and
further, in consequence of the bracket bearings or ears being disposed at a distance
from the insides of the arms, direct contact is prevented, and rattling and friction
avoided.
The brackets or ears may be formed into open topped bearings, to allow for the
detachability of the parts.
Figure 1 of the accompanying drawings, represents in side elevation, a velocipede
lamp, provided with improvements made according to our said invention.
Figure 2 represents a back elevation of the said lamp, with the socket carrying
plate partly broken away at its lower end, in order to exhibit the lamp suspension
spring, which consists essentially of a coiled spring, with outwardly directed arms,
respectively connected to a middle and outer axis of the lamp supporting arms.
Figure 3 represents a side elevation of the said lamp, but with the arms, or the
supporting means, shown in section upon the dotted lines A B figure 2. It will be
seen that the coil of the suspension spring, surrounds a bearing sleeve of one of the
arms, and with the terminal ends of the arm of the said spring, embracing the upper
arm middle spindle, and the lower arm outer pivot.
Figure 4 represents a horizontal section upon the dotted lines C D figure 2, whilst
figure 5 shows an enlarged view of one of the arms, and one of the ends of the pivot
bearings, which are carried by .brackets, connected to the back of the lamp, and to
the back of the socket carrying plate, respectively. It will be seen that the coned
bearing recesses of the arms, take upon the coned ends of the pivots, and are kept
self-adjusted up to their bearings, by springs, enclosed within caps or heads, carried
at one of the ends of the spindle cross pins, as represented in end view figure 7

page_text: -
whilst figure 6 represents one of the screwed ends of one of the spindle cross
pins.
a is a lamp body, supported by upper and lower parallel arms b, b, jointed
respectively to the back of the lamp body a, by means of brackets a², best seen in
figure 3, and by means of curled ends c², of a socket carrier plate c, of a socket c'.
The opposite arms b, 62, have plain and inside screwed sleeves 63, 64, and are kept
together by means of spindle cross pins d, with heads and screwed ends d³, d³, and
upon which latter, milled heads or nuts
C, take.
The screwed ends d³, take into the inside screwed sleeves b*, of both the upper
and lower bracket arms, whilst the other and plain outside parts of the said spindle
cross pins, take and lie within inside plain sleeves 63, of the said upper and lower
arms.
The caps or heads d', of the said spindles d, are sunken, and have interposed
between them, and the outside of the arms, metallic or rubber-springs f, (see figure 4)
which keep the coned seats of the said arms, up to the cone ended bearings g, of
pivots g, carried respectively by brackets, on the back of the body of the lamp, and
by the socket carrier plate.
his a suspension spring, with long arm 2, and short arm 3, of which the former ²
extends from the lower supporting parallel arms to the upper ones, and takes upon
the upper spindle cross-pin d, whilst the latter ³, takes around the outer pivot of the
lower arm.
The upper and lower arms jointed in manner as aforesaid, are automatically kept
up to their bearings, whilst they move like unto a "parallel motion," whereby the
lamp, which yields in obedience to the vibration of a velocipede carrying it, always
preserves an orect position, by the suspension spring being connected and arranged as
represented.
Although we have represented that the self adjustment of arms to spindle ends, or
to their bearings, is effected by a coiled or volute spring, yet a flat or rubber spring
may be employed with like effect.
Instead of the supporting arms b, 2. being provided with coned seats or recesses 61,
for taking upon the coned pivot ends g², of pivots g, we make the said arms carry the
cones of the pivot ends, which are made to take within coned seats, sunken within
the ends of the pivots.
represents in side elevation partly in section, a modification of the lamp
Figure
herein described.
Figure 9 represents a back elevation of the same, whilst figure 10 shows a pair of
arms, united together by cross pins, reduced about their middles.
It will be seen that the joints, or the cross pins or bars, which constitute the joints,
are kept up to their bracket bearings, by pressure plates or springs, directed from
their inner sides, so that rattling of the said joints, on the cross pins uniting the
opposite arms, is prevented.
a is the body of a lamp, b, b² are upper and lower coupled arms, respectively united
together, by cross pins, 61, with reduced middle parts 63, within and against the backs
of which, the ends of pressure or adjustment springs f, press.
The inner cross pins of the arms, are carried within bearings a³, attached to the
back of the body of the lamp, whilst the outer pins of the arms are connected to the
socket carrying plate c, of a socket c¹.
The lamp is kept in an erect position, and returned to its normal position; by
the suspension spring h, connected to the inner cross pin of the lower arm, and
to the socket carrying plate, respectively.
It will be observed, that the brackets a³, are open topped or gapped upon their
upper sides, and which gaps of the said bearings, are marked a³.
By employing open-topped brackets, the arms are adjusted in position, without
the removal of the cross pins, which is common with lamps of the ordinary
.construction.
To prevent the pins rattling within the sleeves of the arms as aforesaid, leather or
other yielding material may be interposed.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
First Self-adjusting the supporting arms of velocipede lamps, by springs, inter-
posed between them, and an auxiliary part, substantially as described and set
forth.
Secondly Providing the supporting bracket arms of velocipede lamps, of the
kind as herein described, with coned bearings or seats, which take upon like coned
ends of pivots, carried by the back of the body of the lamp, and the socket carrier
plate respectively, as described and set forth.
Thirdly Providing the insides of the supporting arms, of lamps, with bearing
sleeves 63, 64, wherethrough spindle cross pins pass, in connecting and adjusting the
opposite supporting arms up to their bearings, as set forth.
Fourthly Supporting and keeping velocipede lamps in an erect position, when
yielding in obedience to the vibration of a machine carrying it, by means of a
suspension spring h, h³, h³, constructed and arranged, substantially as set forth.
Fifthly The general construction, arrangement, and combination, of the sup-
porting means, or back parts of lamps, as herein described and set forth in figures 1,
2, 3 and 4.
Sixthly Keeping the inner cross pins, or cross bars of the arms of lamps, as
herein described, up to their bearings, and in position, by pressure springs, dis-
posed in respect to the other parts of the lamp, as set forth in figure 8.
Seventhly Making the arms of lamps, as herein described, coupled together, by
reduce middled cross pins or bars, as set forth, and shown particularly in figures 9
and 10.
Lastly-The construction and arrangement, of the rear supporting means of lamps,
as herein described and set forth in figures 8 and 9.
בז
P
CHARLES ALBERT MILLER.
FREDERICK JOHN MILLER.
By Henry Skerrett,
Agent for Applicants.