Improvements in or connected with Pedestal and Bracket Lamps.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with Pedestal and Bracket
Lamps.
I, JACOB HIRSCHHORN of 149 Köpenicker Strasse, Berlin in the Empire of
Germany, Lamp Manufacturer do hereby declare the nature of this invention to be
as follows:-
The invention relates to that class of lamp which is adapted to be employed
either as a pedestal lamp for the table or as a bracket lamp for the wall and which
is convertible at will from one form to the other.
In order to attain this end the reservoir or container is generally formed with
a screw plug which screws into a corresponding socket at the top of the pedestal
whilst a similar socket arranged at right angles to the first receives the plug when
the lamp is required to be used as a bracket lamp.
This arrangement possesses many disadvantages some of which are that the
necessary unscrewing and separations of the reservoir from the one socket and
the screwing it into the second socket is a troublesome operation added to which
the wick winder owing to the irregularity of the screw threads will in the bracket
form occupy a position adjacent to the bracket thus rendering it difficult or
impossible to operate the same.
Now the object of the present invention is to so connect the reservoir with the
pedestal that the pedestal may be either fixed therewith in a vertical position or
as readily turned and fixed at right angles therewith in order to form a bracket
and that without disconnecting the parts.
In carrying the invention into effect the pedestal is at the top thereof formed
with a cup or socket and the reservoir has fixed to the under side thereof, by a
neck, a ball which fits the socket and over the ball is passed a hemi-spherical cover
or cap which fastens to the cup either permanently or removeably in such manuer
that it holds the ball firmly in place.
The cap is formed with a slot therein to permit of the neck traversing the same
when the pedestal is turned into a horizontal or bracket position.
In order to hold the reservoir rigid with the pedestal in the vertical or
pedestal form of the lamp a flat or recess is formed upon the under side of the
ball and a spring stud or bolt is mounted in a cylindrical recess in the pedestal at
the bottom of the cup the head of the stud or bolt being formed flat to co-net
with the that of the ball or pointed to engage a recess formed in the ball and thus
hold the parts in the required. vertical or pedestal position whilst in order to hold
the reservoir at right angles with the pedestal or in the bracket position an
annular groove is formed horizontally around or in the ball so as to engage the
stud or bolt in the bracket position and yet permit the oil container to be turned
with the wick winder in a convenient position or in some cases a simple recess may
be substituted for the annular groove.
The strength of the spring actuating the stud or bolt may be such that the
pressure of the hand will be sufficient to move the parts against the spring stud or
bolt from one position to another or in some cases the spring stud or bolt may be,

page_text: furnished with an external knob or offset by means of which it may be depressed
in order to release the parts.
The foot or base of the lamp is provided with the usual key hole slot by the
aid of which it may be hung on a headed nail while m the bracket form.
The device hereinbefore described is extremely simple inexpensive to produce
and at the same time enables the lamp to be instantaneously converted from one
form to another without trouble to the operator.
Dated this 16th day of February 1895.
WHITE & WOODINGTON,
27 Southampton Buildings, London, Agents.
Improvements in or connected with Pedestal and Bracket,
Lamps.
I, JACOB HIRSCHHORN, of 149 Köpenicker Strasse Berlin, in the Empire of
Germany Lamp Manufacturer 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 :-
The invention relates to that class of lamp which is adapted to be employed
either as a pedestal lamp for the table, or as a bracket lamp for the wall, and which
is convertible at will from one form to the other.
In order to attain this end the reservoir or container is generally formed with a
screw plug which screws into a corresponding socket at the top of the pedestal,
whilst a similar socket arranged at right angles to the first receives the plug when
the lamp is required to be used as a bracket lamp.
This arrangement possesses many disadvantages, some of which are that the
necessary unscrewing and separation of the reservoir from the one socket, and
the screwing it into the second socket is a troublesome operation added to which the
wick winder owing to the irregularity of the screw threads will in the bracket form
occupy a position adjacent to the bracket thus rendering it difficult or impossible to
operate the same.
Now the object of the present invention is to so connect the reservoir with the
pedestal that the pedestal may be either fixed therewith in a vertical position or as
readily turned and fixed at right angles therewith in order to form a bracket and
that without disconnecting the parts.
In carrying the invention into effect the pedestal is at the top thereof formed
with a cup or socket and the reservoir has fixed to the underside thereof by a neck,
a ball which fits the socket, and over the ball is passed a hemispherical cover or
cap which fastens to the cup either permanently or removeably in such manner that
it holds the ball firmly in place.
The cap is formed with a slot therein to permit of the neck traversing the same
when the pedestal is turned into a horizontal or bracket position.
In order to hold the reservoir rigid with the pedestal in the vertical or pedestal
form of the lamp a flat or recess is formed upon the underside of the ball and a
spring stud or bolt is mounted in a cylindrical recess in the pedestal at the bottom
of the cup the head of the stud or bolt being formed flat to co-act with the flat of
the ball or pointed to engage a recess formed in the ball, and thus hold the parts in
the required vertical or pedestal position, whilst in order to hold the reservoir at
right angles with the pedestal, or in the bracket position an annular groove is
formed horizontally around or in the ball, so as to engage the stud ar bolt in the

page_text: bracket position, and yet permit the oil container to be turned with the wick winder
in a convenient position.
Or in some cases a simple recess may be substituted for the annular groove.
The strength of the spring actuating the stud or bult may be such that the
pressure of the hand will be sufficient to move the parts against the spring stud or
bolt from one position to another, or in some cases the spring stud or bolt may be
furnished with an external knob or offset by means of which it may be depressed in
order to release the parts.
The foot or base of the lamp is provided with the usual keyhole slot by the aid
of which it may be hung on a headed nail while in the bracket form.
The device hereinbefore described is extremely simple, inexpensive to produce,
and at the same time enables the lamp to be instantaneously converted from one
form to another without trouble to the operator.
And in order that the said invention may be more clearly understood and readily
carried into effect I will proceed aided by the accompanying drawings more fully to
describe the same.
'
Figure 1 is an elevation partly in section of a lamp constructed according to the
present invention and showing it arranged as a pedestal lamp for the table.
Figure 2 is an elevation of part thereof drawn at right angles to Figure 1.
Figure 3 is a sectional elevation showing the lamp arranged as a bracket lamp
and affixed to a wall.
Figure 4 is an underside view of the foot or base of the lamp.
Figure 5 is a vertical section of part representing a modification.
Figure 6 is an elevation of part representing a further modification, and
Figure 7 is a vertical section thereof but taken at right angles to Figure 6.
In the several figures like parts are indicated by similar letters of reference.
Referring to Figures 1 to 4 a represents the foot or base of the lamp and
a represents the pedestal carried thereby and which at the top thereof is formed
with a cup or socket a², and represents the reservoir or container, to the underside
of which is fixed by a neck a ball, which fits the socket a², and over the
ball is passed a hemispherical cap or cover a³ which is soldered or otherwise
permanently fastened to the cup a² in such manner that it holds the ball firmly
Or the cap or cover a³ might be removeably fixed to the cup a² as hereinafter
more fully described.
in place.
The cap a³ is formed with a slot a therein to permit of the neck
traversing
the cap when the pedestal a' is turned into a horizontal or bracket position as
represented at Figure 3.
In order to hold the reservoir b rigid with the pedestal a in the vertical or
pedestal form of the lamp as represented at Figure 1, a hemispherical recess 63 is
formed in the underside of the ball band in a cylindrical recess a in the pedestal a¹
at the bottom of the cup a' is mounted a stud or bolt c which is forced upward by a
spring c acting against a collar c³ thereon, and the head of the bolt or stud c is
formed of a hemispherical shape to coact with the corresponding recess in the
underside of the ball and thus hold the parts in the required vertical or pedestal
position as represented at Figure 1.
is
In order to hold the reservoir at right angles with the pedestal a¹ or in the
bracket position as represented at Figure 3, an annular semicircular groove
formed horizontally around or in the ball so as to engage the hemispherical
head of the stud or bolt c in the bracket position as represented at Figure 3, and
yet permit the oil container or reservoir to be rotated so as to bring the wick
winder d into a convenient position for use.
The strength of the spring e actuating the stud or bolt c is such that the

page_text: pressure of the hand will be sufficient to conveniently move the parts against th
resistance of the head ct of the stud or bolt c from one position to another.
Or if desired the strength of the spring may be much increased and as herein
after described with respect to Figure 5, the spring stud or bolt e may be furnished
with an external offset or handle by means of which it may be depressed in order
to release the parts.
The foot or base a of the lamp is provided with the usual keyhole slot a by
the aid of which it may be suspended from a headed nail when in the bracket form
as represented at Figures 3 and 4.
is
In the example given at Figure 5 the recess 63 in the ball is dispensed
with, and a flat 3 is substituted therefor, whilst the head c' of the bolt
correspondingly formed to coact therewith and instead of the semicircular groove b
in the ball shown and described with respect to the previous figures a plain
rectangular groove is in this case formed therein so as to receive and coact
with the flat head of the bolt c.
In this case as it will be more or less difficult to disengage the head et of
the stud or bolt c from the flat 3 of the ball and more especially from the
groove a slot is formed in the pedestal a' through which projects a headed
stud or offset c from the bolt or stud e which serves as a handle by means of
which the bolt c may be depressed in order to release the parts.
In this example in lieu of permanently fixing by soldering or otherwise the
cap a with the cup a², a screw thread is formed upon the latter and a corre
sponding thread is formed within the rim of the cap a³ so that the parts may
as shown be securely fastened together by screwing one upon the other, but it
will be understood that any other suitable means may be employed for this
purpose.
It will be obvious that in lieu of the groove in the ball 2 an annular flat
might be formed thereon to coact with the flat head c of the stud or bolt e,
but in this case it would be necessary or advisable to considerably increase the
strength of the spring ci.
In the example given at Figures 6 and 7 the head c of the bolt c and recess 1,3
of the bolt 2 are similar in form and action to those described with respect to
Figures 1 to 4, but in lieu of the annular semicircular groove a simple
recess adapted to engage the head c on the stud c is substituted therefor, and in
order to cause these parts to accurately engage upon turning the lamp into
bracket form the neck of the lamp reservoir or container 6 is formed with
flattened sides that is to say of an oblong horizontal section so as to prevent the
reservoir or container rotating with relation to the pedestal a', but it will be
obvious that this device is inferior to the arrangements herein before shown and
described, inasmuch as the wick winder d cannot be placed in any position desired.
The device herein before described is extremely simple in character, inexpensive
to produce, and at the same time enables the lamp to be instantaneously converted
from the one forin to the other without trouble to the operator.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. A lamp comprising a reservoir connected with its pedestal or support by a
ball and socket joint, and means for holding or locking the ball in certain positions
substantially as herein shown and described.
2. A lamp comprising a foot or base a pedestal carried thereby at its upper end
provided with a cup, a reservoir on its underside provided with a ball connected
therewith by a narrow neck and adapted to fit the cup, a cap fixed with the cup
and enclosing the ball, a slot in the cap to allow of the reservoir turning at right
angles with the pedestal, a recess or flat or the like upon the underside of the ball,
a spring stud or bolt located within the pedestal and adapted to engage such
recess or the like in one position of the parts, and an annular horizontal groove or

page_text: flat or a recess in the ball adapted to be engaged by the spring stud or bolt
in the other position of the parts substantially as herein shown and described.
3. A lamp comprising a reservoir connected with its pedestal or support by a
ball and socket joint and a spring bolt provided with an actuating knob or handle
for engaging the ball and locking it in certain positions substantially as herein
shown and described.
Dated this 16th day of November 1895.
WHITE & WOODINGTON,
27 Southampton Buildings, London.