Improved Apparatus for Blowing Organs.
Year: 1891

page_text: Date of Application, 10th Dec., 1891
Complete Specification Left, 12th Sept., 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
Improved Apparatus for Blowing Organs.
I, DAVID MEATES HUGHES, of Clist-Hydon Rectory. Exeter, Clergyman,
do hereby declare the nature of this invention to be as follows:-
This my invention has reference to an improved apparatus for blowing organs.
By this my invention I provide an enclosed metal or other suitable casing, in which
is journalled a shaft carrying a worm which engages a worm-wheel mounted upon a
shaft which is also journalled in the casing and carries fast and loose pullies. This
casing contains oil or grease in which the worm and worm-wheel work. Upon the
shaft carrying the worm-wheel is a crank-disc or crank which is adapted to work
the bellows. A strap or band, which derives its motion from any suitable motor
and runs over the fast pulley, imparts rotary motion to the worm gear and crank
disc, and thus operates the bellows of the organ. By means of a pneumatic motor
which is supplied with wind from the reservoir of the organ the worm gear can be
immediately set in motion or stopped by a slipping mechanism, which may consist
of a fork which removes the strap from the fast to the loose pulley, or vice versa. The
pneumatic motor is started or stopped by suitable levers or the like which can be
carried to any convenient point to be operated.
Dated this 10th day of December 1891.
W. H. MUNNS,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for Blowing Organs.
I, DAVID MEATES HUGHES, of Clist-Hydon Rectory, Exeter, Clergyman,
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 my invention has reference to a new apparatus for blowing organs, and the
invention has for its object to provide a machine which is automatic in its action,
simple in construction, noiseless, and not liable to get out of order. Moreover a
blower constructed in accordance with this invention requires no attention when
once started, and is provided with efficient means whereby the parts are thoroughly
lubricated. Being provided with automatic starting and stopping mechanism the
full power of the engine or other motor is not constantly required, and therefore
great saving of motive force is effected.
I now proceed to describe my said invention, reference being had to the accom-
panying drawings, and to the figures of reference marked thereon, like figures
referring to like parts throughout.
Figure 1 is a sectional side elevation of my improved blower.
Fig. 2 is a sectional end elevation thereof."
Fig. 3 is an elevation shewing an alternative form of the starting and stopping
mechanism, and
Fig. 4 is a plan thereof.
Fig. 5 is an elevation of so much of an organ as will serve to shew the application
thereto of my improved blower.
In the drawings, 1 indicates a cast iron bed-plate, which is preferably cast
integral with bearing-blocks 2 fitted with the usual brass bushings 3.
The bed-
plate is formed with a cavity 4 adapted to contain oil or other lubricant, and with a
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page_text: projecting arm or lug 5. A cast iron or other casing 6 is secured to the bed-plate
preferably by bolts 7, and serves to enclose the mechanism and protect it from dust.
This casing may, if desired, be made in two parts 18 and 19, the part 19 being
formed with a flange 20 engaging the inner sides of the part 18. By this con-
struction the mechanism can be readily inspected by raising and removing the
part 19.
A steel shaft 8 is journalled in the bearings 2 and carries a worm 9 keyed thereto,
and a fast pulley 10 and a loose pulley 11 which may be lubricated from an oil
cup 12 fitted to the end of the shaft. The end-thrust of the shaft 8 is taken up by
the thrust-screw 25 fitted in the arm 5.
The casing 6 is formed with bearings 13 having oil-holes 14, which may be fitted
with oil-cups. A shaft. 15 runs in these bearings and carries a worm-wheel 16,
(keyed to the shaft) and a crank-disc or crank 17 at one end. The worm-wheel 16
is adapted to mesh and be rotated by the worm 9. A connecting-rod 21 is fitted to
the crank-disc 17, and transmits a reciprocating movement to the organ bellows.
An air-motor 22 (preferably consisting of two boards 23, 24 having leather or
other folds 26 between them,) rests uncn a flange 27 extending around the bed-
plate. A compression-weight 28 is placed upon the air-motor as shewn. A bell-
crank lever 29 is pivoted at 30 to the bed-plate, and has one of its arms 31 pivoted
to a connecting-rod 32, pivoted at 33 to the top of the air-motor 22, and its other
arm 34 passed through a slot in a flat bar 35 running in guides 36 indicated by
dotted lines. This bar has prongs 37 which project on each side of the driving-belt
towards the pulleys 10 and 11. In Figs. 3 and 4 I have shewn a clutch, which, if
desired, may be substituted for one of the pulleys 10 and 11. The clutch consists
of a hollow cone 59 which is keyed to the shaft 8. In this construction the shaft 8
is made in two parts 60 and 61 which abut at 62. A cone 63 adapted to fit the
interior of the cone 59 is keyed to the part 61 of the shaft, and has a rear projec-
tion 64 formed with an annular groove 65. The bell-crank levers 29 are pivoted
at 66 to levers 67, whose other ends are pivotally connected to rods 68 projecting
inwardly from the guide-bars 35 moving in supports 36. The rods 68 have heads 69
which engage the groove 65.
It will be readily understood that when the cone 63 is drawn inwardly towards
the cone 59, that the two cones will impinge and the two parts of the shaft will be
rotated together, but that when drawn apart the part 61 of the shaft (upon which
is the drive-pulley) will continue to revolve without the part 60.
Although I have described this one form of clutch, yet I wish it to be understood
that any well-known form of clutch may be employed.
An air-pipe 38 leads from the underside of the air-motor to the wind reservoir 39
(Fig. 5,) of the orgau. The reservoir is provided with two valves 40 and 41 of
ordinary construction, and operated by levers. The top, 42, of the reservoir has
secured to it the depending rod 43, having slots 44 in which are adjustably fitted
the tappets 45, 46. These tappets are adapted to come alternately into contact
with the lever 47 according to the rising or lowering of the top 42. The lever 47
is pivoted at 48 to the support 49 secured to the reservoir, and carries an upwardly
extending arm 50, having a weight 1 at its upper end. The lever 47 makes contact
with the underside of the lever 52 pivoted at its end 53 to a fixed support 54.
lever 55 is pivoted at one end to the fixed support 54. A rod 56 having screw-
threaded ends provided with thumb-nuts connects the levers 52 and 55. Similar
rods 57 and 58 connect the lever 52 with the valve 41 and the lever 55 with the
valve 40 respectively.
The manner in which my improved blower operates is as follows:-
A
The blower is driven by a drive-belt from an engine or any other suitable motor.
When the motor is started the shaft 8 and the worm 9 is rotated, which transmits
motion to the worm-wheel 16 and the disc 17, which, through the connecting-rod 21
operates the bellows. Wind is thereby caused to enter the wind-motor 22, which
continues inflated until the top 39 of the organ reservoir 42 is sufficiently elevated
to bring the tappet 46 into contact with the lever 47. The contact causes the

page_text: balance-weight 51 to fall over onto the lever 52, causing it to fall, closing the
valve 41, and opening the valve 40, which allows the wind-motor 22 to collapse, its
top being lowered allows the lever 32 to fall, and partially turns the lever-arms 31
and 34 around their pivot. This movement moves the rod 35 in a horizontal
direction, and the projections 37 carry the driving-belt onto the loose pulley 10,
thereby stopping the blower and bellows. When the clutch action is used this
action releases it. When, however, the wind in the reservoir 39 is sufficiently
exhausted, and the top 42 falls sufficiently for the tappet 45 to come into contact
with the lever 47 the weight 51 is raised into the vertical position shewn, and the
lever 52 is likewise raised, which reverses the action, and the belt being moved onto
the fast pulley, the bellows are again operated.
It will be understood that the oil contained in the well 4 serves to lubricate the
worm 9 and worm-wheel 16.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The herein described apparatus for blowing organs, comprising a bed-plate,
bearing blocks cast integral with said bed-plate, a shaft journalled in said bearing-
blocks, a driving pulley and loose pulley mounted upon said shaft, a worm also
mounted upon the shaft, a casing secured to the bed-plate to cover the mechanism
and formed with bearings, a shaft journalled in said bearings and carrying a worm-
wheel adapted to engage the worm aforesaid, and a crank-disc keyed to the end of
the shaft for transmitting motion to the organ bellows, a compressible wind-motor
supported beneath the bed-plate and lever mechanism for operating the drive-belt,
a pipe connecting the blowing apparatus with the organ reservoir, all substantially
as and for the purpose hereinbefore set forth, and illustrated in the drawings here-
unto annexed.
2. The combination, with the apparatus for blowing organs hereinbefore described
and claimed, of a clutch adapted to be automatically operated to stop and start the
blower, substantially as and for the purposes herein before described and illustrated
in the drawings hereunto annexed.
3. The herein described apparatus for blowing organs, consisting of the parts
hereinbefore described all arranged in combination substantially as and for the
purposes hereinbefore set forth and illustrated in the drawings hereunto annexed.
Dated this 10th day of September 1892.
W. H. MUNNS,
Applicant's Agent.