Improvements in Dampers for Tubular Bells.
Year: 1892

page_text: Date of Application, 11th Feb., 1892
Complete Specification Left, 3rd Nov., 1892-Accepted, 3rd Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Dampers for Tubular Bells.
We, THOMAS LATHAM, Manufacturer, and JOSEPH WILLIAM HOLLAND,
Manager, both of Fleet Works, Coventry, in the County of Warwick, do hereby
declare the nature of this invention to be as follows:-
Heretofore dampers have been applied to tubular bells, which have been operated
by the hammer so as to fall against or on the top of the bell immediately after the
hammer has struck the latter; this arrangement was applied to tubular bells of
large size and was not convenient of application to tubular bells for domestic use.
The present invention relates to a damper conveniently applicable to com-
paratively small tubular bells, whether in peals or otherwise, which at the same
time is inexpensive and requires no mechanical appliances for operating it.
For this purpose we construct a plate, preferably of metal, of size to cover, or
nearly so, the end of the tubular bell; we provide such plate with a perforated lug
or ear on each of two opposite sides thereof, and we line the underside of such plate
with vulcanized india rubber, felt, or other suitable material.
The damper constructed as above described rests normally on the top of the bell
and it is retained in position by the bell supporting cord being passed through the
perforated lugs or ears thereof.
When the bell is struck the said damper will be caused to vibrate and thereby to
rise and fall a short distance above the top of the bell for a few seconds, when it
will settle quietly down thereon.
By these means the sound of the bell when first struck is not materially affected,
whilst the period of vibration is considerably reduced. By varying the weight
of the damper the period of vibration of the bell can be regulated as may be
desired.
It will be understood that the bell supporting cord should pass freely through
the lugs or ears of the damper in order to give free play to the latter.
1000
T. LATHAM,
J. W. HOLLAND,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Dampers for Tubular Bells.
We, THOMAS LATHAM, Manufacturer, and JOSEPH WILLIAM HOLLAND,
Manager, both of Fleet Works, Coventry, in the County of Warwick, 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:-
Reference is made to the accompanying drawings and to the figures and letters
marked thereon.
Heretofore dampers have been applied to tubular bells which have been operated
by the hammer so as to fall against, or on the top of, the bell immediately after the
hammer has struck the latter; this arrangement was applied to tubular bells of
large size and was not convenient of application to tubular bells for domestic use.

page_text: "
The present invention relates to a damper conveniently applicable to com-
paratively small tubular belis, whether in peals or otherwise, which at the same
time is inexpensive and requires no mechanical appliances for operating it.
The invention is illustrated in the accompanying drawings, in which Figure 1 is
an elevation partly in section and Figure 2 is a plan showing the improved damper
applied to a tubular bell, like parts being indicated by similar letters of reference in
both figures.
For this purpose we construct a plate a, preferably of metal, of size to cover (or
nearly so) the end of the tubular bell ; we provide such plate a with a perforated
lug or ear a on each of two opposite sides thereof, and we line the underside of
such plate with vulcanized india-rubber, felt or other suitable material a².
The damper a constructed as above described rests normally on the top of the
bell b, and it is retained in position by the bell supporting cord c being passed
through the perforated lugs or ears a¹ thereof.
When the bell b is struck the said damper a will be caused to vibrate and thereby
to rise and fall a short distance above the top of the bell for a few seconds, when
it will settle quietly down thereon.
By these means the sound of the bell when first struck is not materially affected,
whilst the period of vibration is considerably reduced.
By varying the weight of the damper a the period of vibration of the bell can be
regulated as may be desired.
It will be understood that the bell supporting cord c should pass freely through
the lugs or ears a' of the damper a in order to give free play to the latter.
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 :-
1. A self-acting damper for tubular bells constructed, mounted and operating
substantially as herein shown and described.
2. A damper for tubular bells made of a rigid plate lined on the underside with
india-rubber or other suitable material and resting normally on the bell and
: operating, substantially as herein shown and described.
Died this 2nd day of November 1900
THOS. LATHAM,
J. W. HOLLAND,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.