Improvements in Spring Clutches for Organ Pipes.
Year: 1892

page_text: Date of Application, 18th Aug., 1892-Accepted, 8th Oct., 1892
COMPLETE SPECIFICATION.
Improvements in Spring Clutches for Organ Pipes.
1, FREDERICK WILLIAM HEDGELAND, of Corner of Twenty-sixth and
Rockwell Streets, Chicago, Illinois, United States of America, Artisan, do hereby
declare the nature of my invention, and in what manner the same is to be
performed, to be particularly described and ascertained in, and by, the following
statement:-
Figure 1 is a broken away part elevation and part section of an organ-pipe and
upper-board; and
Figure 2 a transverse section on line 2 Fig. 1, looking in the direction indicated
by the arrow.
The object of this invention is to provide a spring-clutch or holder for
removably retaining organ-pipes in their proper position and prevent the same
from being accidentally misplaced in moving or changing the position of the
instrument.
Referring to the drawing, A represents an organ-pipe in position, the lower end
or foot being seated in the upper-board in the usual manner. B is a clutch or
holder in the form of a spring-plate, one end of which is secured to the upper-
board by the screw a. The opposite end of the clutch-plate is curved or bent to
form the recess 6 in the underside; the terminal end being bent upwardly at an
angle, as shown in Fig. 1.
A pin, d, is inserted in the lower or foot-end of the pipe or pipes, and is adapted
to engage with the recess in the spring-clutch plate and lock the pipe in a fixed
position.
The gauge or stop-screw, g, passes through the plate B, near its longitudinal
center, into the upper-board. This screw is only partly inserted, as shown, a space
being left between the head and plate so that the loose end of the latter may have
a slight up and down movement and permit of the pipes yielding to any undue
strain or action, instead of being held in a rigid position.
The
screw, g,
will be set or gauged so that the spring-plate will not rise high enough
to allow the foot-end of the pipes to accidentally set out of the recess or groove
in which they are seated.
The pipes may be easily removed by turning them, when the locking-pin will
pass under the rounded part, ½, of the spring-plate after it is once properly set. -
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim, is:
1. In an organ or like musical instrument, the combination with the pipes
thereof, of a spring-clutch, having one end rigidly secured to the upper-board and
the opposite or loose end adapted to engage with the lower or foot-end of said
pipes and removably retain the same in place against accidental displacement, sub-
stantially as set forth.
2.In an organ or like musical instrument, the combination with the pipes, of a
locking-pin, inserted in and near the lower or foot-end thereof, and a spring-clutch
rigidly fastened at one end and loose at the other, said loose end being adapted to
detachably engage with said pin and hold said pipe in position against accidental
displacement, substantially as set forth.
3. In an organ or like musical instrument, the combination with the pipes, of a
pin, inserted in the lower part thereof, the spring-clutch, having one end rigidly
secured to the upper-board, and the opposite end loosely engaging with said pin,
substantially as set forth.

page_text: 4. In an organ or like musical instrument, the combination of the pipes, the
pin or pins, inserted in the lower part thereof, the spring-clutch, the upper-board,
and the gauge or stop-screw, substantially as described.
Signed at Chicago, Illinois, this 30th day of July 1892.
In the presence of
J. B. DONALSON.
FREDERICK WILLIAM HEDGELAND.
L. M. FREEMAN.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.